shell/ev-view.c

   1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; c-indent-level: 8 -*- */
   2 /* this file is part of evince, a gnome document viewer
   3  *
   4  *  Copyright (C) 2004 Red Hat, Inc
   5  *
   6  * Evince is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * Evince is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
  19  */
  20
  21 #include <config.h>
  22 #include <stdlib.h>
  23 #include <math.h>
  24 #include <string.h>
  25 #include <gtk/gtkalignment.h>
  26 #include <glib/gi18n.h>
  27 #include <gtk/gtkbindings.h>
  28 #include <gtk/gtkselection.h>
  29 #include <gtk/gtkclipboard.h>
  30 #include <gdk/gdkkeysyms.h>
  31
  32 #include "ev-marshal.h"
  33 #include "ev-view.h"
  34 #include "ev-view-private.h"
  35 #include "ev-utils.h"
  36 #include "ev-document-links.h"
  37 #include "ev-document-images.h"
  38 #include "ev-document-find.h"
  39 #include "ev-document-transition.h"
  40 #include "ev-document-forms.h"
  41 #include "ev-document-misc.h"
  42 #include "ev-job-queue.h"
  43 #include "ev-page-cache.h"
  44 #include "ev-pixbuf-cache.h"
  45 #if !GTK_CHECK_VERSION (2, 11, 7)
  46 #include "ev-tooltip.h"
  47 #endif
  48 #include "ev-application.h"
  49
  50 #define EV_VIEW_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass), EV_TYPE_VIEW, EvViewClass))
  51 #define EV_IS_VIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), EV_TYPE_VIEW))
  52 #define EV_VIEW_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), EV_TYPE_VIEW, EvViewClass))
  53
  54
  55 enum {
  56         PROP_0,
  57         PROP_FIND_STATUS,
  58         PROP_CONTINUOUS,
  59         PROP_DUAL_PAGE,
  60         PROP_FULLSCREEN,
  61         PROP_PRESENTATION,
  62         PROP_SIZING_MODE,
  63         PROP_ZOOM,
  64         PROP_ROTATION,
  65         PROP_HAS_SELECTION,
  66 };
  67
  68 enum {
  69         SIGNAL_BINDING_ACTIVATED,
  70         SIGNAL_ZOOM_INVALID,
  71         SIGNAL_HANDLE_LINK,
  72         SIGNAL_EXTERNAL_LINK,
  73         SIGNAL_POPUP_MENU,
  74         N_SIGNALS,
  75 };
  76
  77 enum {
  78         TARGET_DND_URI,
  79         TARGET_DND_TEXT,
  80         TARGET_DND_IMAGE
  81 };
  82
  83 enum {
  84         TARGET_STRING,
  85         TARGET_TEXT,
  86         TARGET_COMPOUND_TEXT,
  87         TARGET_UTF8_STRING,
  88         TARGET_TEXT_BUFFER_CONTENTS
  89 };
  90
  91 static const GtkTargetEntry clipboard_targets[] = {
  92         { "STRING", 0, TARGET_STRING },
  93         { "TEXT",   0, TARGET_TEXT },
  94         { "COMPOUND_TEXT", 0, TARGET_COMPOUND_TEXT },
  95         { "UTF8_STRING", 0, TARGET_UTF8_STRING },
  96 };
  97
  98 static const GtkTargetEntry view_drop_targets[] = {
  99         { "text/uri-list", 0, 0 }
 100 };
 101
 102 static guint signals[N_SIGNALS];
 103
 104 typedef enum {
 105         EV_VIEW_FIND_NEXT,
 106         EV_VIEW_FIND_PREV
 107 } EvViewFindDirection;
 108
 109 #define ZOOM_IN_FACTOR  1.2
 110 #define ZOOM_OUT_FACTOR (1.0/ZOOM_IN_FACTOR)
 111
 112 #define MIN_SCALE 0.05409
 113 #define MAX_SCALE 4.0
 114
 115 #define SCROLL_TIME 150
 116
 117 /*** Scrolling ***/
 118 static void       scroll_to_current_page                     (EvView *view,
 119                                                               GtkOrientation orientation);
 120 static void       ev_view_set_scroll_adjustments             (GtkLayout          *layout,
 121                                                               GtkAdjustment      *hadjustment,
 122                                                               GtkAdjustment      *vadjustment);
 123 static void       view_update_range_and_current_page         (EvView             *view);
 124 static void       set_scroll_adjustment                      (EvView             *view,
 125                                                               GtkOrientation      orientation,
 126                                                               GtkAdjustment      *adjustment);
 127 static void       add_scroll_binding_keypad                  (GtkBindingSet      *binding_set,
 128                                                               guint               keyval,
 129                                                               GdkModifierType modifiers,
 130                                                               EvScrollType       scroll,
 131                                                               gboolean            horizontal);
 132 static void       ensure_rectangle_is_visible                (EvView             *view,
 133                                                               GdkRectangle       *rect);
 134
 135 /*** Geometry computations ***/
 136 static void       compute_border                             (EvView             *view,
 137                                                               int                 width,
 138                                                               int                 height,
 139                                                               GtkBorder          *border);
 140 static void       get_page_y_offset                          (EvView *view,
 141                                                               int page,
 142                                                               double zoom,
 143                                                               int *y_offset);
 144 static gboolean   get_page_extents                           (EvView             *view,
 145                                                               gint                page,
 146                                                               GdkRectangle       *page_area,
 147                                                               GtkBorder          *border);
 148 static void       view_rect_to_doc_rect                      (EvView             *view,
 149                                                               GdkRectangle       *view_rect,
 150                                                               GdkRectangle       *page_area,
 151                                                               EvRectangle        *doc_rect);
 152 static void       doc_rect_to_view_rect                      (EvView             *view,
 153                                                               int                 page,
 154                                                               EvRectangle        *doc_rect,
 155                                                               GdkRectangle       *view_rect);
 156 static void       find_page_at_location                      (EvView             *view,
 157                                                               gdouble             x,
 158                                                               gdouble             y,
 159                                                               gint               *page,
 160                                                               gint               *x_offset,
 161                                                               gint               *y_offset);
 162 static gboolean  doc_point_to_view_point                     (EvView             *view,
 163                                                               int                 page,
 164                                                               EvPoint            *doc_point,
 165                                                               GdkPoint           *view_point);
 166 /*** Hyperrefs ***/
 167 static EvLink *   ev_view_get_link_at_location               (EvView             *view,
 168                                                               gdouble             x,
 169                                                               gdouble             y);
 170 static char*      tip_from_link                              (EvView             *view,
 171                                                               EvLink             *link);
 172 /*** Forms ***/
 173 static EvFormField *ev_view_get_form_field_at_location       (EvView             *view,
 174                                                                gdouble            x,
 175                                                                gdouble            y);
 176
 177 /*** GtkWidget implementation ***/
 178 static void       ev_view_size_request_continuous_dual_page  (EvView             *view,
 179                                                               GtkRequisition     *requisition);
 180 static void       ev_view_size_request_continuous            (EvView             *view,
 181                                                               GtkRequisition     *requisition);
 182 static void       ev_view_size_request_dual_page             (EvView             *view,
 183                                                               GtkRequisition     *requisition);
 184 static void       ev_view_size_request_single_page           (EvView             *view,
 185                                                               GtkRequisition     *requisition);
 186 static void       ev_view_size_request                       (GtkWidget          *widget,
 187                                                               GtkRequisition     *requisition);
 188 static void       ev_view_size_allocate                      (GtkWidget          *widget,
 189                                                               GtkAllocation      *allocation);
 190 static void       ev_view_realize                            (GtkWidget          *widget);
 191 static gboolean   ev_view_scroll_event                       (GtkWidget          *widget,
 192                                                               GdkEventScroll     *event);
 193 static gboolean   ev_view_expose_event                       (GtkWidget          *widget,
 194                                                               GdkEventExpose     *event);
 195 static gboolean   ev_view_popup_menu                         (GtkWidget          *widget);
 196 static gboolean   ev_view_button_press_event                 (GtkWidget          *widget,
 197                                                               GdkEventButton     *event);
 198 static gboolean   ev_view_motion_notify_event                (GtkWidget          *widget,
 199                                                               GdkEventMotion     *event);
 200 static gboolean   ev_view_button_release_event               (GtkWidget          *widget,
 201                                                               GdkEventButton     *event);
 202 static gboolean   ev_view_enter_notify_event                 (GtkWidget          *widget,
 203                                                               GdkEventCrossing   *event);
 204 static gboolean   ev_view_leave_notify_event                 (GtkWidget          *widget,
 205                                                               GdkEventCrossing   *event);
 206 static void       ev_view_style_set                          (GtkWidget          *widget,
 207                                                               GtkStyle           *old_style);
 208 static void       ev_view_remove_all                         (EvView             *view);
 209
 210 static AtkObject *ev_view_get_accessible                     (GtkWidget *widget);
 211
 212 /*** Drawing ***/
 213 static guint32    ev_gdk_color_to_rgb                        (const GdkColor     *color);
 214 static void       draw_rubberband                            (GtkWidget          *widget,
 215                                                               GdkWindow          *window,
 216                                                               const GdkRectangle *rect,
 217                                                               guchar              alpha);
 218 static void       highlight_find_results                     (EvView             *view,
 219                                                               int                 page);
 220 static void       draw_one_page                              (EvView             *view,
 221                                                               gint                page,
 222                                                               cairo_t            *cr,
 223                                                               GdkRectangle       *page_area,
 224                                                               GtkBorder          *border,
 225                                                               GdkRectangle       *expose_area,
 226                                                               gboolean           *page_ready);
 227 static void       draw_loading_text                          (EvView             *view,
 228                                                               GdkRectangle       *page_area,
 229                                                               GdkRectangle       *expose_area);
 230
 231 /*** Callbacks ***/
 232 static void       find_changed_cb                            (EvDocument         *document,
 233                                                               int                 page,
 234                                                               EvView             *view);
 235 static void       job_finished_cb                            (EvPixbufCache      *pixbuf_cache,
 236                                                               GdkRegion          *region,
 237                                                               EvView             *view);
 238 static void       page_changed_cb                            (EvPageCache        *page_cache,
 239                                                               int                 new_page,
 240                                                               EvView             *view);
 241 static void       on_adjustment_value_changed                (GtkAdjustment      *adjustment,
 242                                                               EvView             *view);
 243
 244 /*** GObject ***/
 245 static void       ev_view_finalize                           (GObject            *object);
 246 static void       ev_view_destroy                            (GtkObject          *object);
 247 static void       ev_view_set_property                       (GObject            *object,
 248                                                               guint               prop_id,
 249                                                               const GValue       *value,
 250                                                               GParamSpec         *pspec);
 251 static void       ev_view_get_property                       (GObject            *object,
 252                                                               guint               prop_id,
 253                                                               GValue             *value,
 254                                                               GParamSpec         *pspec);
 255 static void       ev_view_class_init                         (EvViewClass        *class);
 256 static void       ev_view_init                               (EvView             *view);
 257
 258 /*** Zoom and sizing ***/
 259 static double   zoom_for_size_fit_width                      (int doc_width,
 260                                                               int doc_height,
 261                                                               int target_width,
 262                                                               int target_height,
 263                                                               int vsb_width);
 264 static double   zoom_for_size_fit_height                     (int doc_width,
 265                                                               int doc_height,
 266                                                               int target_width,
 267                                                               int target_height,
 268                                                               int vsb_height);
 269 static double   zoom_for_size_best_fit                       (int doc_width,
 270                                                               int doc_height,
 271                                                               int target_width,
 272                                                               int target_height,
 273                                                               int vsb_width,
 274                                                               int hsb_width);
 275 static void     ev_view_zoom_for_size_presentation           (EvView *view,
 276                                                               int     width,
 277                                                               int     height);
 278 static void     ev_view_zoom_for_size_continuous_and_dual_page (EvView *view,
 279                                                                 int     width,
 280                                                                 int     height,
 281                                                                 int     vsb_width,
 282                                                                 int     hsb_height);
 283 static void     ev_view_zoom_for_size_continuous               (EvView *view,
 284                                                                 int     width,
 285                                                                 int     height,
 286                                                                 int     vsb_width,
 287                                                                 int     hsb_height);
 288 static void     ev_view_zoom_for_size_dual_page                (EvView *view,
 289                                                                 int     width,
 290                                                                 int     height,
 291                                                                 int     vsb_width,
 292                                                                 int     hsb_height);
 293 static void     ev_view_zoom_for_size_single_page              (EvView *view,
 294                                                                 int     width,
 295                                                                 int     height,
 296                                                                 int     vsb_width,
 297                                                                 int     hsb_height);
 298 /*** Cursors ***/
 299 static GdkCursor* ev_view_create_invisible_cursor            (void);
 300 static void       ev_view_set_cursor                         (EvView             *view,
 301                                                               EvViewCursor        new_cursor);
 302 static void       ev_view_handle_cursor_over_xy              (EvView *view,
 303                                                               gint x,
 304                                                               gint y);
 305
 306 /*** Find ***/
 307 static void       update_find_status_message                 (EvView             *view,
 308                                                               gboolean            this_page);
 309 static void       ev_view_set_find_status                    (EvView             *view,
 310                                                               const char         *message);
 311 static void       jump_to_find_result                        (EvView             *view);
 312 static void       jump_to_find_page                          (EvView             *view,
 313                                                               EvViewFindDirection direction,
 314                                                               gint                shift);
 315
 316 /*** Selection ***/
 317 static void       compute_selections                         (EvView             *view,
 318                                                               EvSelectionStyle    style,
 319                                                               GdkPoint           *start,
 320                                                               GdkPoint           *stop);
 321 static void       clear_selection                            (EvView             *view);
 322 static void       selection_free                             (EvViewSelection    *selection);
 323 static char*      get_selected_text                          (EvView             *ev_view);
 324 static void       ev_view_primary_get_cb                     (GtkClipboard       *clipboard,
 325                                                               GtkSelectionData   *selection_data,
 326                                                               guint               info,
 327                                                               gpointer            data);
 328 static void       ev_view_primary_clear_cb                   (GtkClipboard       *clipboard,
 329                                                               gpointer            data);
 330 static void       ev_view_update_primary_selection           (EvView             *ev_view);
 331
 332 /*** Presentation ***/
 333 static void       ev_view_presentation_transition_start      (EvView             *ev_view);
 334 static void       ev_view_presentation_transition_stop       (EvView             *ev_view);
 335
 336
 337 G_DEFINE_TYPE (EvView, ev_view, GTK_TYPE_LAYOUT)
 338
 339 static void
 340 scroll_to_current_page (EvView *view, GtkOrientation orientation)
 341 {
 342         GdkPoint view_point;
 343
 344         if (view->document == NULL) {
 345                 return;
 346         }
 347
 348         doc_point_to_view_point (view, view->current_page, &view->pending_point, &view_point);
 349
 350         if (orientation == GTK_ORIENTATION_VERTICAL) {
 351                 view->pending_point.y = 0;
 352         } else {
 353                 view->pending_point.x = 0;
 354         }
 355
 356         if (orientation == GTK_ORIENTATION_VERTICAL) {
 357                 if (view->continuous) {
 358                         gtk_adjustment_clamp_page (view->vadjustment,
 359                                                    view_point.y - view->spacing / 2,
 360                                                    view_point.y + view->vadjustment->page_size);
 361                 } else {
 362                         gtk_adjustment_set_value (view->vadjustment,
 363                                                   CLAMP (view_point.y,
 364                                                   view->vadjustment->lower,
 365                                                   view->vadjustment->upper -
 366                                                   view->vadjustment->page_size));
 367                 }
 368         } else {
 369                 if (view->dual_page) {
 370                         gtk_adjustment_clamp_page (view->hadjustment,
 371                                                    view_point.x,
 372                                                    view_point.x + view->hadjustment->page_size);
 373                 } else {
 374                         gtk_adjustment_set_value (view->hadjustment,
 375                                                   CLAMP (view_point.x,
 376                                                   view->hadjustment->lower,
 377                                                   view->hadjustment->upper -
 378                                                   view->hadjustment->page_size));
 379                 }
 380         }
 381 }
 382
 383 static void
 384 view_set_adjustment_values (EvView         *view,
 385                             GtkOrientation  orientation)
 386 {
 387         GtkWidget *widget = GTK_WIDGET (view);
 388         GtkAdjustment *adjustment;
 389         int requisition;
 390         int allocation;
 391
 392         double factor;
 393         gint new_value;
 394
 395         if (orientation == GTK_ORIENTATION_HORIZONTAL)  {
 396                 requisition = widget->requisition.width;
 397                 allocation = widget->allocation.width;
 398                 adjustment = view->hadjustment;
 399         } else {
 400                 requisition = widget->requisition.height;
 401                 allocation = widget->allocation.height;
 402                 adjustment = view->vadjustment;
 403         }
 404
 405         if (!adjustment)
 406                 return;
 407
 408         factor = 1.0;
 409         switch (view->pending_scroll) {
 410                 case SCROLL_TO_KEEP_POSITION:
 411                 case SCROLL_TO_FIND_LOCATION:
 412                         factor = (adjustment->value) / adjustment->upper;
 413                         break;
 414                 case SCROLL_TO_PAGE_POSITION:
 415                         break;
 416                 case SCROLL_TO_CENTER:
 417                         factor = (adjustment->value + adjustment->page_size * 0.5) / adjustment->upper;
 418                         break;
 419         }
 420
 421         adjustment->page_size = allocation;
 422         adjustment->step_increment = allocation * 0.1;
 423         adjustment->page_increment = allocation * 0.9;
 424         adjustment->lower = 0;
 425         adjustment->upper = MAX (allocation, requisition);
 426
 427         /*
 428          * We add 0.5 to the values before to average out our rounding errors.
 429          */
 430         switch (view->pending_scroll) {
 431                 case SCROLL_TO_KEEP_POSITION:
 432                 case SCROLL_TO_FIND_LOCATION:
 433                         new_value = CLAMP (adjustment->upper * factor + 0.5, 0, adjustment->upper - adjustment->page_size);
 434                         gtk_adjustment_set_value (adjustment, (int)new_value);
 435                         break;
 436                 case SCROLL_TO_PAGE_POSITION:
 437                         scroll_to_current_page (view, orientation);
 438                         break;
 439                 case SCROLL_TO_CENTER:
 440                         new_value = CLAMP (adjustment->upper * factor - adjustment->page_size * 0.5 + 0.5,
 441                                            0, adjustment->upper - adjustment->page_size);
 442                         gtk_adjustment_set_value (adjustment, (int)new_value);
 443                         break;
 444         }
 445
 446         gtk_adjustment_changed (adjustment);
 447 }
 448
 449 static void
 450 view_update_range_and_current_page (EvView *view)
 451 {
 452         gint current_page;
 453         gint best_current_page = -1;
 454
 455         /* Presentation trumps all other modes */
 456         if (view->presentation) {
 457                 view->start_page = view->current_page;
 458                 view->end_page = view->current_page;
 459         } else if (view->continuous) {
 460                 GdkRectangle current_area, unused, page_area;
 461                 GtkBorder border;
 462                 gboolean found = FALSE;
 463                 gint area_max = -1, area;
 464                 int i;
 465
 466                 if (!(view->vadjustment && view->hadjustment))
 467                         return;
 468
 469                 current_area.x = view->hadjustment->value;
 470                 current_area.width = view->hadjustment->upper;
 471                 current_area.y = view->vadjustment->value;
 472                 current_area.height = view->vadjustment->page_size;
 473
 474                 for (i = 0; i < ev_page_cache_get_n_pages (view->page_cache); i++) {
 475
 476                         get_page_extents (view, i, &page_area, &border);
 477
 478                         if (gdk_rectangle_intersect (&current_area, &page_area, &unused)) {
 479                                 area = unused.width * unused.height;
 480
 481                                 if (!found) {
 482                                         area_max = area;
 483                                         view->start_page = i;
 484                                         found = TRUE;
 485                                         best_current_page = i;
 486                                 }
 487                                 if (area > area_max) {
 488                                         best_current_page = (area == area_max) ? MIN (i, best_current_page) : i;
 489                                         area_max = area;
 490                                 }
 491
 492                                 view->end_page = i;
 493                         } else if (found && view->current_page <= view->end_page) {
 494                                 break;
 495                         }
 496                 }
 497
 498         } else if (view->dual_page) {
 499                 if (view->current_page % 2 == ev_page_cache_get_dual_even_left (view->page_cache)) {
 500                         view->start_page = view->current_page;
 501                         if (view->current_page + 1 < ev_page_cache_get_n_pages (view->page_cache))
 502                                 view->end_page = view->start_page + 1;
 503                         else
 504                                 view->end_page = view->start_page;
 505                 } else {
 506                         if (view->current_page < 1)
 507                                 view->start_page = view->current_page;
 508                         else
 509                                 view->start_page = view->current_page - 1;
 510                         view->end_page = view->current_page;
 511                 }
 512         } else {
 513                 view->start_page = view->current_page;
 514                 view->end_page = view->current_page;
 515         }
 516
 517         best_current_page = MAX (best_current_page, view->start_page);
 518         current_page = ev_page_cache_get_current_page (view->page_cache);
 519
 520         if ((current_page != best_current_page) && (view->pending_scroll == SCROLL_TO_KEEP_POSITION)) {
 521                 view->current_page = best_current_page;
 522                 ev_page_cache_set_current_page (view->page_cache, best_current_page);
 523         }
 524
 525         ev_pixbuf_cache_set_page_range (view->pixbuf_cache,
 526                                         view->start_page,
 527                                         view->end_page,
 528                                         view->rotation,
 529                                         view->scale,
 530                                         view->selection_info.selections);
 531 }
 532
 533 static void
 534 set_scroll_adjustment (EvView *view,
 535                        GtkOrientation  orientation,
 536                        GtkAdjustment  *adjustment)
 537 {
 538         GtkAdjustment **to_set;
 539
 540         if (orientation == GTK_ORIENTATION_HORIZONTAL)
 541                 to_set = &view->hadjustment;
 542         else
 543                 to_set = &view->vadjustment;
 544
 545         if (*to_set != adjustment) {
 546                 if (*to_set) {
 547                         g_signal_handlers_disconnect_by_func (*to_set,
 548                                                               (gpointer) on_adjustment_value_changed,
 549                                                               view);
 550                         g_object_unref (*to_set);
 551                 }
 552
 553                 *to_set = adjustment;
 554                 view_set_adjustment_values (view, orientation);
 555
 556                 if (*to_set) {
 557                         g_object_ref (*to_set);
 558                         g_signal_connect (*to_set, "value_changed",
 559                                           G_CALLBACK (on_adjustment_value_changed), view);
 560                 }
 561         }
 562 }
 563
 564 static void
 565 ev_view_set_scroll_adjustments (GtkLayout      *layout,
 566                                 GtkAdjustment  *hadjustment,
 567                                 GtkAdjustment  *vadjustment)
 568 {
 569         EvView *view = EV_VIEW (layout);
 570
 571         set_scroll_adjustment (view, GTK_ORIENTATION_HORIZONTAL, hadjustment);
 572         set_scroll_adjustment (view, GTK_ORIENTATION_VERTICAL, vadjustment);
 573
 574         on_adjustment_value_changed (NULL, view);
 575 }
 576
 577 static void
 578 add_scroll_binding_keypad (GtkBindingSet  *binding_set,
 579                            guint           keyval,
 580                            GdkModifierType modifiers,
 581                            EvScrollType    scroll,
 582                            gboolean        horizontal)
 583 {
 584   guint keypad_keyval = keyval - GDK_Left + GDK_KP_Left;
 585
 586   gtk_binding_entry_add_signal (binding_set, keyval, modifiers,
 587                                 "binding_activated", 2,
 588                                 EV_TYPE_SCROLL_TYPE, scroll,
 589                                 G_TYPE_BOOLEAN, horizontal);
 590   gtk_binding_entry_add_signal (binding_set, keypad_keyval, modifiers,
 591                                 "binding_activated", 2,
 592                                 EV_TYPE_SCROLL_TYPE, scroll,
 593                                 G_TYPE_BOOLEAN, horizontal);
 594 }
 595
 596 void
 597 ev_view_scroll (EvView        *view,
 598                 EvScrollType   scroll,
 599                 gboolean horizontal)
 600 {
 601         GtkAdjustment *adjustment;
 602         double value, increment;
 603         gboolean first_page = FALSE;
 604         gboolean last_page = FALSE;
 605
 606         view->jump_to_find_result = FALSE;
 607
 608         if (view->presentation || view->sizing_mode == EV_SIZING_BEST_FIT) {
 609                 switch (scroll) {
 610                         case EV_SCROLL_PAGE_BACKWARD:
 611                         case EV_SCROLL_STEP_BACKWARD:
 612                                 ev_view_previous_page (view);
 613                                 break;
 614                         case EV_SCROLL_PAGE_FORWARD:
 615                         case EV_SCROLL_STEP_FORWARD:
 616                                 ev_view_next_page (view);
 617                                 break;
 618                         default:
 619                                 break;
 620                 }
 621                 return;
 622         }
 623
 624         /* Assign values for increment and vertical adjustment */
 625         adjustment = horizontal ? view->hadjustment : view->vadjustment;
 626         increment = adjustment->page_size * 0.75;
 627         value = adjustment->value;
 628
 629         /* Assign boolean for first and last page */
 630         if (view->current_page == 0)
 631                 first_page = TRUE;
 632         if (view->current_page == ev_page_cache_get_n_pages (view->page_cache) - 1)
 633                 last_page = TRUE;
 634
 635         switch (scroll) {
 636                 case EV_SCROLL_PAGE_BACKWARD:
 637                         /* Do not jump backwards if at the first page */
 638                         if (value == (adjustment->lower) && first_page) {
 639                                 /* Do nothing */
 640                                 /* At the top of a page, assign the upper bound limit of previous page */
 641                         } else if (value == (adjustment->lower)) {
 642                                 value = adjustment->upper - adjustment->page_size;
 643                                 ev_view_previous_page (view);
 644                                 /* Jump to the top */
 645                         } else {
 646                                 value = MAX (value - increment, adjustment->lower);
 647                         }
 648                         break;
 649                 case EV_SCROLL_PAGE_FORWARD:
 650                         /* Do not jump forward if at the last page */
 651                         if (value == (adjustment->upper - adjustment->page_size) && last_page) {
 652                                 /* Do nothing */
 653                         /* At the bottom of a page, assign the lower bound limit of next page */
 654                         } else if (value == (adjustment->upper - adjustment->page_size)) {
 655                                 value = 0;
 656                                 ev_view_next_page (view);
 657                         /* Jump to the bottom */
 658                         } else {
 659                                 value = MIN (value + increment, adjustment->upper - adjustment->page_size);
 660                         }
 661                         break;
 662                 case EV_SCROLL_STEP_BACKWARD:
 663                         value -= adjustment->step_increment;
 664                         break;
 665                 case EV_SCROLL_STEP_FORWARD:
 666                         value += adjustment->step_increment;
 667                         break;
 668                 case EV_SCROLL_STEP_DOWN:
 669                         value -= adjustment->step_increment / 10;
 670                         break;
 671                 case EV_SCROLL_STEP_UP:
 672                         value += adjustment->step_increment / 10;
 673                         break;
 674                 default:
 675                         break;
 676         }
 677
 678         value = CLAMP (value, adjustment->lower,
 679                        adjustment->upper - adjustment->page_size);
 680
 681         gtk_adjustment_set_value (adjustment, value);
 682 }
 683
 684 #define MARGIN 5
 685
 686 static void
 687 ensure_rectangle_is_visible (EvView *view, GdkRectangle *rect)
 688 {
 689         GtkWidget *widget = GTK_WIDGET (view);
 690         GtkAdjustment *adjustment;
 691         int value;
 692
 693         view->pending_scroll = SCROLL_TO_FIND_LOCATION;
 694
 695         adjustment = view->vadjustment;
 696
 697         if (rect->y < adjustment->value) {
 698                 value = MAX (adjustment->lower, rect->y - MARGIN);
 699                 gtk_adjustment_set_value (view->vadjustment, value);
 700         } else if (rect->y + rect->height >
 701                    adjustment->value + widget->allocation.height) {
 702                 value = MIN (adjustment->upper, rect->y + rect->height -
 703                              widget->allocation.height + MARGIN);
 704                 gtk_adjustment_set_value (view->vadjustment, value);
 705         }
 706
 707         adjustment = view->hadjustment;
 708
 709         if (rect->x < adjustment->value) {
 710                 value = MAX (adjustment->lower, rect->x - MARGIN);
 711                 gtk_adjustment_set_value (view->hadjustment, value);
 712         } else if (rect->x + rect->height >
 713                    adjustment->value + widget->allocation.width) {
 714                 value = MIN (adjustment->upper, rect->x + rect->width -
 715                              widget->allocation.width + MARGIN);
 716                 gtk_adjustment_set_value (view->hadjustment, value);
 717         }
 718
 719         gtk_widget_queue_resize (GTK_WIDGET (view));
 720 }
 721
 722 /*** Geometry computations ***/
 723
 724 static void
 725 compute_border (EvView *view, int width, int height, GtkBorder *border)
 726 {
 727         if (view->presentation) {
 728                 border->left = 0;
 729                 border->right = 0;
 730                 border->top = 0;
 731                 border->bottom = 0;
 732         } else {
 733                 ev_document_misc_get_page_border_size (width, height, border);
 734         }
 735 }
 736
 737 static void
 738 get_page_y_offset (EvView *view, int page, double zoom, int *y_offset)
 739 {
 740         int max_width, offset;
 741         GtkBorder border;
 742
 743         g_return_if_fail (y_offset != NULL);
 744
 745         ev_page_cache_get_max_width (view->page_cache, view->rotation, zoom, &max_width);
 746
 747         compute_border (view, max_width, max_width, &border);
 748
 749         if (view->dual_page) {
 750                 ev_page_cache_get_height_to_page (view->page_cache, page,
 751                                                   view->rotation, zoom, NULL, &offset);
 752                 offset += ((page + ev_page_cache_get_dual_even_left (view->page_cache)) / 2 + 1) * view->spacing + ((page + ev_page_cache_get_dual_even_left (view->page_cache)) / 2 ) * (border.top + border.bottom);
 753         } else {
 754                 ev_page_cache_get_height_to_page (view->page_cache, page,
 755                                                   view->rotation, zoom, &offset, NULL);
 756                 offset += (page + 1) * view->spacing + page * (border.top + border.bottom);
 757         }
 758
 759         *y_offset = offset;
 760         return;
 761 }
 762
 763 static gboolean
 764 get_page_extents (EvView       *view,
 765                   gint          page,
 766                   GdkRectangle *page_area,
 767                   GtkBorder    *border)
 768 {
 769         GtkWidget *widget;
 770         int width, height;
 771
 772         widget = GTK_WIDGET (view);
 773
 774         /* Get the size of the page */
 775         ev_page_cache_get_size (view->page_cache, page,
 776                                 view->rotation,
 777                                 view->scale,
 778                                 &width, &height);
 779         compute_border (view, width, height, border);
 780         page_area->width = width + border->left + border->right;
 781         page_area->height = height + border->top + border->bottom;
 782
 783         if (view->presentation) {
 784                 page_area->x = (MAX (0, widget->allocation.width - width))/2;
 785                 page_area->y = (MAX (0, widget->allocation.height - height))/2;
 786         } else if (view->continuous) {
 787                 gint max_width;
 788                 gint x, y;
 789
 790                 ev_page_cache_get_max_width (view->page_cache, view->rotation,
 791                                              view->scale, &max_width);
 792                 max_width = max_width + border->left + border->right;
 793                 /* Get the location of the bounding box */
 794                 if (view->dual_page) {
 795                         x = view->spacing + ((page % 2 == ev_page_cache_get_dual_even_left (view->page_cache)) ? 0 : 1) * (max_width + view->spacing);
 796                         x = x + MAX (0, widget->allocation.width - (max_width * 2 + view->spacing * 3)) / 2;
 797                         if (page % 2 == ev_page_cache_get_dual_even_left (view->page_cache))
 798                                 x = x + (max_width - width - border->left - border->right);
 799                 } else {
 800                         x = view->spacing;
 801                         x = x + MAX (0, widget->allocation.width - (width + view->spacing * 2)) / 2;
 802                 }
 803
 804                 get_page_y_offset (view, page, view->scale, &y);
 805
 806                 page_area->x = x;
 807                 page_area->y = y;
 808         } else {
 809                 gint x, y;
 810                 if (view->dual_page) {
 811                         gint width_2, height_2;
 812                         gint max_width = width;
 813                         gint max_height = height;
 814                         GtkBorder overall_border;
 815                         gint other_page;
 816
 817                         other_page = (page % 2 == ev_page_cache_get_dual_even_left (view->page_cache)) ? page + 1: page - 1;
 818
 819                         /* First, we get the bounding box of the two pages */
 820                         if (other_page < ev_page_cache_get_n_pages (view->page_cache)
 821                             && (0 <= other_page)) {
 822                                 ev_page_cache_get_size (view->page_cache,
 823                                                         other_page,
 824                                                         view->rotation,
 825                                                         view->scale,
 826                                                         &width_2, &height_2);
 827                                 if (width_2 > width)
 828                                         max_width = width_2;
 829                                 if (height_2 > height)
 830                                         max_height = height_2;
 831                         }
 832                         compute_border (view, max_width, max_height, &overall_border);
 833
 834                         /* Find the offsets */
 835                         x = view->spacing;
 836                         y = view->spacing;
 837
 838                         /* Adjust for being the left or right page */
 839                         if (page % 2 == ev_page_cache_get_dual_even_left (view->page_cache))
 840                                 x = x + max_width - width;
 841                         else
 842                                 x = x + (max_width + overall_border.left + overall_border.right) + view->spacing;
 843
 844                         y = y + (max_height - height)/2;
 845
 846                         /* Adjust for extra allocation */
 847                         x = x + MAX (0, widget->allocation.width -
 848                                      ((max_width + overall_border.left + overall_border.right) * 2 + view->spacing * 3))/2;
 849                         y = y + MAX (0, widget->allocation.height - (height + view->spacing * 2))/2;
 850                 } else {
 851                         x = view->spacing;
 852                         y = view->spacing;
 853
 854                         /* Adjust for extra allocation */
 855                         x = x + MAX (0, widget->allocation.width - (width + border->left + border->right + view->spacing * 2))/2;
 856                         y = y + MAX (0, widget->allocation.height - (height + border->top + border->bottom +  view->spacing * 2))/2;
 857                 }
 858
 859                 page_area->x = x;
 860                 page_area->y = y;
 861         }
 862
 863         return TRUE;
 864 }
 865
 866 static void
 867 view_point_to_doc_point (EvView *view,
 868                          GdkPoint *view_point,
 869                          GdkRectangle *page_area,
 870                          double  *doc_point_x,
 871                          double  *doc_point_y)
 872 {
 873         *doc_point_x = (double) (view_point->x - page_area->x) / view->scale;
 874         *doc_point_y = (double) (view_point->y - page_area->y) / view->scale;
 875 }
 876
 877 static void
 878 view_rect_to_doc_rect (EvView *view,
 879                        GdkRectangle *view_rect,
 880                        GdkRectangle *page_area,
 881                        EvRectangle  *doc_rect)
 882 {
 883         doc_rect->x1 = (double) (view_rect->x - page_area->x) / view->scale;
 884         doc_rect->y1 = (double) (view_rect->y - page_area->y) / view->scale;
 885         doc_rect->x2 = doc_rect->x1 + (double) view_rect->width / view->scale;
 886         doc_rect->y2 = doc_rect->y1 + (double) view_rect->height / view->scale;
 887 }
 888
 889 static gboolean
 890 doc_point_to_view_point (EvView       *view,
 891                          int           page,
 892                          EvPoint      *doc_point,
 893                          GdkPoint     *view_point)
 894 {
 895         GdkRectangle page_area;
 896         GtkBorder border;
 897         double x, y, view_x, view_y;
 898         int width, height;
 899
 900         ev_page_cache_get_size (view->page_cache, page,
 901                                 view->rotation,
 902                                 1.0,
 903                                 &width, &height);
 904
 905         if (view->rotation == 0) {
 906                 x = doc_point->x;
 907                 y = doc_point->y;
 908         } else if (view->rotation == 90) {
 909                 x = width - doc_point->y;
 910                 y = doc_point->x;
 911         } else if (view->rotation == 180) {
 912                 x = width - doc_point->x;
 913                 y = height - doc_point->y;
 914         } else if (view->rotation == 270) {
 915                 x = doc_point->y;
 916                 y = height - doc_point->x;
 917         } else {
 918                 g_assert_not_reached ();
 919         }
 920
 921         get_page_extents (view, page, &page_area, &border);
 922
 923         view_x = x * view->scale;
 924         view_y = y * view->scale;
 925         view_point->x = view_x + page_area.x;
 926         view_point->y = view_y + page_area.y;
 927
 928         return (view_x > 0 && view_x <= page_area.width &&
 929                 view_y > 0 && view_y <= page_area.height);
 930 }
 931
 932 static void
 933 doc_rect_to_view_rect (EvView       *view,
 934                        int           page,
 935                        EvRectangle  *doc_rect,
 936                        GdkRectangle *view_rect)
 937 {
 938         GdkRectangle page_area;
 939         GtkBorder border;
 940         double x, y, w, h;
 941         int width, height;
 942
 943         ev_page_cache_get_size (view->page_cache, page,
 944                                 view->rotation,
 945                                 1.0,
 946                                 &width, &height);
 947
 948         if (view->rotation == 0) {
 949                 x = doc_rect->x1;
 950                 y = doc_rect->y1;
 951                 w = doc_rect->x2 - doc_rect->x1;
 952                 h = doc_rect->y2 - doc_rect->y1;
 953         } else if (view->rotation == 90) {
 954                 x = width - doc_rect->y2;
 955                 y = doc_rect->x1;
 956                 w = doc_rect->y2 - doc_rect->y1;
 957                 h = doc_rect->x2 - doc_rect->x1;
 958         } else if (view->rotation == 180) {
 959                 x = width - doc_rect->x2;
 960                 y = height - doc_rect->y2;
 961                 w = doc_rect->x2 - doc_rect->x1;
 962                 h = doc_rect->y2 - doc_rect->y1;
 963         } else if (view->rotation == 270) {
 964                 x = doc_rect->y1;
 965                 y = height - doc_rect->x2;
 966                 w = doc_rect->y2 - doc_rect->y1;
 967                 h = doc_rect->x2 - doc_rect->x1;
 968         } else {
 969                 g_assert_not_reached ();
 970         }
 971
 972         get_page_extents (view, page, &page_area, &border);
 973
 974         view_rect->x = x * view->scale + page_area.x;
 975         view_rect->y = y * view->scale + page_area.y;
 976         view_rect->width = w * view->scale;
 977         view_rect->height = h * view->scale;
 978 }
 979
 980 static void
 981 find_page_at_location (EvView  *view,
 982                        gdouble  x,
 983                        gdouble  y,
 984                        gint    *page,
 985                        gint    *x_offset,
 986                        gint    *y_offset)
 987 {
 988         int i;
 989
 990         if (view->document == NULL)
 991                 return;
 992
 993         g_assert (page);
 994         g_assert (x_offset);
 995         g_assert (y_offset);
 996
 997         for (i = view->start_page; i <= view->end_page; i++) {
 998                 GdkRectangle page_area;
 999                 GtkBorder border;
1000
1001                 if (! get_page_extents (view, i, &page_area, &border))
1002                         continue;
1003
1004                 if ((x >= page_area.x + border.left) &&
1005                     (x < page_area.x + page_area.width - border.right) &&
1006                     (y >= page_area.y + border.top) &&
1007                     (y < page_area.y + page_area.height - border.bottom)) {
1008                         *page = i;
1009                         *x_offset = x - (page_area.x + border.left);
1010                         *y_offset = y - (page_area.y + border.top);
1011                         return;
1012                 }
1013         }
1014
1015         *page = -1;
1016 }
1017
1018 static gboolean
1019 location_in_text (EvView  *view,
1020                   gdouble  x,
1021                   gdouble  y)
1022 {
1023         GdkRegion *region;
1024         gint page = -1;
1025         gint x_offset = 0, y_offset = 0;
1026
1027         find_page_at_location (view, x, y, &page, &x_offset, &y_offset);
1028
1029         if (page == -1)
1030                 return FALSE;
1031
1032         region = ev_pixbuf_cache_get_text_mapping (view->pixbuf_cache, page);
1033
1034         if (region)
1035                 return gdk_region_point_in (region, x_offset / view->scale, y_offset / view->scale);
1036         else
1037                 return FALSE;
1038 }
1039
1040 static int
1041 ev_view_get_width (EvView *view)
1042 {
1043         return GTK_WIDGET (view)->allocation.width;
1044 }
1045
1046 static int
1047 ev_view_get_height (EvView *view)
1048 {
1049         return GTK_WIDGET (view)->allocation.height;
1050 }
1051
1052 static gboolean
1053 location_in_selected_text (EvView  *view,
1054                            gdouble  x,
1055                            gdouble  y)
1056 {
1057         gint page = -1;
1058         gint x_offset = 0, y_offset = 0;
1059         EvViewSelection *selection;
1060         GList *l = NULL;
1061
1062         for (l = view->selection_info.selections; l != NULL; l = l->next) {
1063                 selection = (EvViewSelection *)l->data;
1064
1065                 find_page_at_location (view, x, y, &page, &x_offset, &y_offset);
1066
1067                 if (page != selection->page)
1068                         continue;
1069
1070                 if (selection->covered_region &&
1071                     gdk_region_point_in (selection->covered_region, x_offset, y_offset))
1072                         return TRUE;
1073         }
1074
1075         return FALSE;
1076 }
1077
1078 static gboolean
1079 get_doc_point_from_offset (EvView *view,
1080                            gint    page,
1081                            gint    x_offset,
1082                            gint    y_offset,
1083                            gint   *x_new,
1084                            gint   *y_new)
1085 {
1086         int width, height;
1087         double x, y;
1088
1089         ev_page_cache_get_size (view->page_cache, page,
1090                                 view->rotation,
1091                                 1.0,
1092                                 &width, &height);
1093
1094         x_offset = x_offset / view->scale;
1095         y_offset = y_offset / view->scale;
1096
1097         if (view->rotation == 0) {
1098                 x = x_offset;
1099                 y = y_offset;
1100         } else if (view->rotation == 90) {
1101                 x = y_offset;
1102                 y = width - x_offset;
1103         } else if (view->rotation == 180) {
1104                 x = width - x_offset;
1105                 y = height - y_offset;
1106         } else if (view->rotation == 270) {
1107                 x = height - y_offset;
1108                 y = x_offset;
1109         } else {
1110                 g_assert_not_reached ();
1111         }
1112
1113         *x_new = x;
1114         *y_new = y;
1115
1116         return TRUE;
1117 }
1118
1119 /*** Hyperref ***/
1120 static EvLink *
1121 ev_view_get_link_at_location (EvView  *view,
1122                               gdouble  x,
1123                               gdouble  y)
1124 {
1125         gint page = -1;
1126         gint x_offset = 0, y_offset = 0;
1127         gint x_new = 0, y_new = 0;
1128         GList *link_mapping;
1129
1130         if (!EV_IS_DOCUMENT_LINKS (view->document))
1131                 return NULL;
1132
1133         x += view->scroll_x;
1134         y += view->scroll_y;
1135
1136         find_page_at_location (view, x, y, &page, &x_offset, &y_offset);
1137
1138         if (page == -1)
1139                 return NULL;
1140
1141
1142         if (get_doc_point_from_offset (view, page, x_offset,
1143                                        y_offset, &x_new, &y_new) == FALSE)
1144                 return NULL;
1145
1146         link_mapping = ev_pixbuf_cache_get_link_mapping (view->pixbuf_cache, page);
1147
1148         if (link_mapping)
1149                 return ev_link_mapping_find (link_mapping, x_new, y_new);
1150         else
1151                 return NULL;
1152 }
1153
1154 static void
1155 goto_fitr_dest (EvView *view, EvLinkDest *dest)
1156 {
1157         EvPoint doc_point;
1158         gdouble zoom, left, top;
1159         gboolean change_left, change_top;
1160
1161         left = ev_link_dest_get_left (dest, &change_left);
1162         top = ev_link_dest_get_top (dest, &change_top);
1163
1164         zoom = zoom_for_size_best_fit (ev_link_dest_get_right (dest) - left,
1165                                        ev_link_dest_get_bottom (dest) - top,
1166                                        ev_view_get_width (view),
1167                                        ev_view_get_height (view), 0, 0);
1168
1169         ev_view_set_sizing_mode (view, EV_SIZING_FREE);
1170         ev_view_set_zoom (view, zoom, FALSE);
1171
1172         doc_point.x = change_left ? left : 0;
1173         doc_point.y = change_top ? top : 0;
1174
1175         view->current_page = ev_link_dest_get_page (dest);
1176         if (change_left || change_top)
1177                 view->pending_point = doc_point;
1178         view->pending_scroll = SCROLL_TO_PAGE_POSITION;
1179
1180         gtk_widget_queue_resize (GTK_WIDGET (view));
1181 }
1182
1183 static void
1184 goto_fitv_dest (EvView *view, EvLinkDest *dest)
1185 {
1186         EvPoint doc_point;
1187         int doc_width, doc_height, page;
1188         double zoom, left;
1189         gboolean change_left;
1190
1191         page = ev_link_dest_get_page (dest);
1192         ev_page_cache_get_size (view->page_cache, page, 0, 1.0, &doc_width, &doc_height);
1193
1194         left = ev_link_dest_get_left (dest, &change_left);
1195         doc_point.x = change_left ? left : 0;
1196         doc_point.y = 0;
1197
1198         zoom = zoom_for_size_fit_height (doc_width - doc_point.x , doc_height,
1199                                          ev_view_get_width (view),
1200                                          ev_view_get_height (view), 0);
1201
1202         ev_view_set_sizing_mode (view, EV_SIZING_FREE);
1203         ev_view_set_zoom (view, zoom, FALSE);
1204
1205         view->current_page = page;
1206         if (change_left)
1207                 view->pending_point = doc_point;
1208         view->pending_scroll = SCROLL_TO_PAGE_POSITION;
1209
1210         gtk_widget_queue_resize (GTK_WIDGET (view));
1211 }
1212
1213 static void
1214 goto_fith_dest (EvView *view, EvLinkDest *dest)
1215 {
1216         EvPoint doc_point;
1217         int doc_width, doc_height, page;
1218         gdouble zoom, top;
1219         gboolean change_top;
1220
1221         page = ev_link_dest_get_page (dest);
1222         ev_page_cache_get_size (view->page_cache, page, 0, 1.0, &doc_width, &doc_height);
1223
1224         top = ev_link_dest_get_top (dest, &change_top);
1225
1226         doc_point.x = 0;
1227         doc_point.y = change_top ? top : 0;
1228
1229         zoom = zoom_for_size_fit_width (doc_width, top,
1230                                         ev_view_get_width (view),
1231                                         ev_view_get_height (view), 0);
1232
1233         ev_view_set_sizing_mode (view, EV_SIZING_FIT_WIDTH);
1234         ev_view_set_zoom (view, zoom, FALSE);
1235
1236         view->current_page = page;
1237         if (change_top)
1238                 view->pending_point = doc_point;
1239         view->pending_scroll = SCROLL_TO_PAGE_POSITION;
1240
1241         gtk_widget_queue_resize (GTK_WIDGET (view));
1242 }
1243
1244 static void
1245 goto_fit_dest (EvView *view, EvLinkDest *dest)
1246 {
1247         double zoom;
1248         int doc_width, doc_height;
1249         int page;
1250
1251         page = ev_link_dest_get_page (dest);
1252         ev_page_cache_get_size (view->page_cache, page, 0, 1.0, &doc_width, &doc_height);
1253
1254         zoom = zoom_for_size_best_fit (doc_width, doc_height, ev_view_get_width (view),
1255                                        ev_view_get_height (view), 0, 0);
1256
1257         ev_view_set_sizing_mode (view, EV_SIZING_BEST_FIT);
1258         ev_view_set_zoom (view, zoom, FALSE);
1259
1260         view->current_page = page;
1261         view->pending_scroll = SCROLL_TO_PAGE_POSITION;
1262
1263         gtk_widget_queue_resize (GTK_WIDGET (view));
1264 }
1265
1266 static void
1267 goto_xyz_dest (EvView *view, EvLinkDest *dest)
1268 {
1269         EvPoint doc_point;
1270         gint page;
1271         gdouble zoom, left, top;
1272         gboolean change_zoom, change_left, change_top;
1273
1274         zoom = ev_link_dest_get_zoom (dest, &change_zoom);
1275         page = ev_link_dest_get_page (dest);
1276
1277         if (change_zoom && zoom > 1) {
1278                 ev_view_set_sizing_mode (view, EV_SIZING_FREE);
1279                 ev_view_set_zoom (view, zoom, FALSE);
1280         }
1281
1282         left = ev_link_dest_get_left (dest, &change_left);
1283         top = ev_link_dest_get_top (dest, &change_top);
1284
1285         doc_point.x = change_left ? left : 0;
1286         doc_point.y = change_top ? top : 0;
1287
1288         view->current_page = page;
1289         if (change_left || change_top)
1290                 view->pending_point = doc_point;
1291         view->pending_scroll = SCROLL_TO_PAGE_POSITION;
1292
1293         gtk_widget_queue_resize (GTK_WIDGET (view));
1294 }
1295
1296 static void
1297 goto_dest (EvView *view, EvLinkDest *dest)
1298 {
1299         EvLinkDestType type;
1300         int page, n_pages, current_page;
1301
1302         page = ev_link_dest_get_page (dest);
1303         n_pages = ev_page_cache_get_n_pages (view->page_cache);
1304
1305         if (page < 0 || page >= n_pages)
1306                 return;
1307
1308         current_page = view->current_page;
1309
1310         type = ev_link_dest_get_dest_type (dest);
1311
1312         switch (type) {
1313                 case EV_LINK_DEST_TYPE_PAGE:
1314                         ev_page_cache_set_current_page (view->page_cache, page);
1315                         break;
1316                 case EV_LINK_DEST_TYPE_FIT:
1317                         goto_fit_dest (view, dest);
1318                         break;
1319                 case EV_LINK_DEST_TYPE_FITH:
1320                         goto_fith_dest (view, dest);
1321                         break;
1322                 case EV_LINK_DEST_TYPE_FITV:
1323                         goto_fitv_dest (view, dest);
1324                         break;
1325                 case EV_LINK_DEST_TYPE_FITR:
1326                         goto_fitr_dest (view, dest);
1327                         break;
1328                 case EV_LINK_DEST_TYPE_XYZ:
1329                         goto_xyz_dest (view, dest);
1330                         break;
1331                 case EV_LINK_DEST_TYPE_PAGE_LABEL:
1332                         ev_page_cache_set_page_label (view->page_cache, ev_link_dest_get_page_label (dest));
1333                         break;
1334                 default:
1335                         g_assert_not_reached ();
1336         }
1337
1338         if (current_page != view->current_page)
1339                 ev_page_cache_set_current_page (view->page_cache,
1340                                                 view->current_page);
1341 }
1342
1343 static void
1344 ev_view_goto_dest (EvView *view, EvLinkDest *dest)
1345 {
1346         EvLinkDestType type;
1347
1348         type = ev_link_dest_get_dest_type (dest);
1349
1350         if (type == EV_LINK_DEST_TYPE_NAMED) {
1351                 EvLinkDest  *dest2;
1352                 const gchar *named_dest;
1353
1354                 named_dest = ev_link_dest_get_named_dest (dest);
1355                 dest2 = ev_document_links_find_link_dest (EV_DOCUMENT_LINKS (view->document),
1356                                                           named_dest);
1357                 if (dest2) {
1358                         goto_dest (view, dest2);
1359                         g_object_unref (dest2);
1360                 }
1361
1362                 return;
1363         }
1364
1365         goto_dest (view, dest);
1366 }
1367
1368 void
1369 ev_view_handle_link (EvView *view, EvLink *link)
1370 {
1371         EvLinkAction    *action = NULL;
1372         EvLinkActionType type;
1373
1374         action = ev_link_get_action (link);
1375         if (!action)
1376                 return;
1377
1378         type = ev_link_action_get_action_type (action);
1379
1380         switch (type) {
1381                 case EV_LINK_ACTION_TYPE_GOTO_DEST: {
1382                         EvLinkDest *dest;
1383
1384                         g_signal_emit (view, signals[SIGNAL_HANDLE_LINK], 0, link);
1385
1386                         dest = ev_link_action_get_dest (action);
1387                         ev_view_goto_dest (view, dest);
1388                 }
1389                         break;
1390                 case EV_LINK_ACTION_TYPE_GOTO_REMOTE:
1391                 case EV_LINK_ACTION_TYPE_EXTERNAL_URI:
1392                 case EV_LINK_ACTION_TYPE_LAUNCH:
1393                 case EV_LINK_ACTION_TYPE_NAMED:
1394                         g_signal_emit (view, signals[SIGNAL_EXTERNAL_LINK], 0, action);
1395                         break;
1396         }
1397 }
1398
1399 gchar *
1400 ev_view_page_label_from_dest (EvView *view, EvLinkDest *dest)
1401 {
1402         EvLinkDestType type;
1403         gchar *msg = NULL;
1404
1405         type = ev_link_dest_get_dest_type (dest);
1406
1407         switch (type) {
1408                 case EV_LINK_DEST_TYPE_NAMED: {
1409                         EvLinkDest  *dest2;
1410                         const gchar *named_dest;
1411
1412                         named_dest = ev_link_dest_get_named_dest (dest);
1413                         dest2 = ev_document_links_find_link_dest (EV_DOCUMENT_LINKS (view->document),
1414                                                                   named_dest);
1415                         if (dest2) {
1416                                 msg = ev_page_cache_get_page_label (view->page_cache,
1417                                                                     ev_link_dest_get_page (dest2));
1418                                 g_object_unref (dest2);
1419                         }
1420                 }
1421
1422                         break;
1423                 case EV_LINK_DEST_TYPE_PAGE_LABEL: {
1424                         msg = g_strdup (ev_link_dest_get_page_label (dest));
1425                 }
1426                         break;
1427                 default:
1428                         msg = ev_page_cache_get_page_label (view->page_cache,
1429                                                             ev_link_dest_get_page (dest));
1430         }
1431
1432         return msg;
1433 }
1434
1435 static char *
1436 tip_from_action_named (EvLinkAction *action)
1437 {
1438         const gchar *name = ev_link_action_get_name (action);
1439
1440         if (g_ascii_strcasecmp (name, "FirstPage") == 0) {
1441                 return g_strdup (_("Go to first page"));
1442         } else if (g_ascii_strcasecmp (name, "PrevPage") == 0) {
1443                 return g_strdup (_("Go to previous page"));
1444         } else if (g_ascii_strcasecmp (name, "NextPage") == 0) {
1445                 return g_strdup (_("Go to next page"));
1446         } else if (g_ascii_strcasecmp (name, "LastPage") == 0) {
1447                 return g_strdup (_("Go to last page"));
1448         } else if (g_ascii_strcasecmp (name, "GoToPage") == 0) {
1449                 return g_strdup (_("Go to page"));
1450         } else if (g_ascii_strcasecmp (name, "Find") == 0) {
1451                 return g_strdup (_("Find"));
1452         }
1453
1454         return NULL;
1455 }
1456
1457 static char *
1458 tip_from_link (EvView *view, EvLink *link)
1459 {
1460         EvLinkAction *action;
1461         EvLinkActionType type;
1462         char *msg = NULL;
1463         char *page_label;
1464         const char *title;
1465
1466         action = ev_link_get_action (link);
1467         title = ev_link_get_title (link);
1468
1469         if (!action)
1470                 return title ? g_strdup (title) : NULL;
1471
1472         type = ev_link_action_get_action_type (action);
1473
1474         switch (type) {
1475                 case EV_LINK_ACTION_TYPE_GOTO_DEST:
1476                         page_label = ev_view_page_label_from_dest (view,
1477                                                                    ev_link_action_get_dest (action));
1478                         if (page_label) {
1479                                 msg = g_strdup_printf (_("Go to page %s"), page_label);
1480                                 g_free (page_label);
1481                         }
1482                         break;
1483                 case EV_LINK_ACTION_TYPE_GOTO_REMOTE:
1484                         if (title) {
1485                                 msg = g_strdup_printf (_("Go to %s on file “%s”"), title,
1486                                                        ev_link_action_get_filename (action));
1487                         } else {
1488                                 msg = g_strdup_printf (_("Go to file “%s”"),
1489                                                        ev_link_action_get_filename (action));
1490                         }
1491                         break;
1492                 case EV_LINK_ACTION_TYPE_EXTERNAL_URI:
1493                         msg = g_strdup (ev_link_action_get_uri (action));
1494                         break;
1495                 case EV_LINK_ACTION_TYPE_LAUNCH:
1496                         msg = g_strdup_printf (_("Launch %s"),
1497                                                ev_link_action_get_filename (action));
1498                         break;
1499                 case EV_LINK_ACTION_TYPE_NAMED:
1500                         msg = tip_from_action_named (action);
1501                         break;
1502                 default:
1503                         if (title)
1504                                 msg = g_strdup (title);
1505                         break;
1506         }
1507
1508         return msg;
1509 }
1510
1511 static void
1512 ev_view_handle_cursor_over_xy (EvView *view, gint x, gint y)
1513 {
1514         EvLink      *link;
1515         EvFormField *field;
1516
1517         if (view->cursor == EV_VIEW_CURSOR_HIDDEN)
1518                 return;
1519
1520         if (view->drag_info.in_drag) {
1521                 if (view->cursor != EV_VIEW_CURSOR_DRAG)
1522                         ev_view_set_cursor (view, EV_VIEW_CURSOR_DRAG);
1523                 return;
1524         }
1525
1526         if (view->scroll_info.autoscrolling) {
1527                 if (view->cursor != EV_VIEW_CURSOR_AUTOSCROLL)
1528                         ev_view_set_cursor (view, EV_VIEW_CURSOR_AUTOSCROLL);
1529                 return;
1530         }
1531
1532         link = ev_view_get_link_at_location (view, x, y);
1533
1534 #if !GTK_CHECK_VERSION (2, 11, 7)
1535         if (view->link_tooltip == NULL) {
1536                 view->link_tooltip = ev_tooltip_new (GTK_WIDGET (view));
1537         }
1538
1539         if (view->hovered_link != link) {
1540                 view->hovered_link = link;
1541                 ev_tooltip_deactivate (EV_TOOLTIP (view->link_tooltip));
1542         }
1543 #endif
1544
1545         if (link) {
1546 #if GTK_CHECK_VERSION (2, 11, 7)
1547                 g_object_set (view, "has-tooltip", TRUE, NULL);
1548 #else
1549                 char *msg = tip_from_link (view, link);
1550
1551                 if (msg && g_utf8_validate (msg, -1, NULL)) {
1552                         EvTooltip *tooltip = EV_TOOLTIP (view->link_tooltip);
1553
1554                         ev_tooltip_set_position (tooltip, x, y);
1555                         ev_tooltip_set_text (tooltip, msg);
1556                         ev_tooltip_activate (tooltip);
1557                 }
1558                 g_free (msg);
1559 #endif
1560                 ev_view_set_cursor (view, EV_VIEW_CURSOR_LINK);
1561         } else if ((field = ev_view_get_form_field_at_location (view, x, y))) {
1562                 if (field->is_read_only) {
1563                         if (view->cursor == EV_VIEW_CURSOR_LINK ||
1564                             view->cursor == EV_VIEW_CURSOR_IBEAM ||
1565                             view->cursor == EV_VIEW_CURSOR_DRAG)
1566                                 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
1567                 } else if (EV_IS_FORM_FIELD_TEXT (field)) {
1568                         ev_view_set_cursor (view, EV_VIEW_CURSOR_IBEAM);
1569                 } else {
1570                         ev_view_set_cursor (view, EV_VIEW_CURSOR_LINK);
1571                 }
1572         } else if (location_in_text (view, x + view->scroll_x, y + view->scroll_y)) {
1573                 ev_view_set_cursor (view, EV_VIEW_CURSOR_IBEAM);
1574         } else {
1575                 if (view->cursor == EV_VIEW_CURSOR_LINK ||
1576                     view->cursor == EV_VIEW_CURSOR_IBEAM ||
1577                     view->cursor == EV_VIEW_CURSOR_DRAG)
1578                         ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
1579         }
1580 }
1581
1582 /*** Images ***/
1583 static EvImage *
1584 ev_view_get_image_at_location (EvView  *view,
1585                                gdouble  x,
1586                                gdouble  y)
1587 {
1588         gint page = -1;
1589         gint x_offset = 0, y_offset = 0;
1590         gint x_new = 0, y_new = 0;
1591         GList *image_mapping;
1592
1593         if (!EV_IS_DOCUMENT_IMAGES (view->document))
1594                 return NULL;
1595
1596         x += view->scroll_x;
1597         y += view->scroll_y;
1598
1599         find_page_at_location (view, x, y, &page, &x_offset, &y_offset);
1600
1601         if (page == -1)
1602                 return NULL;
1603
1604         if (get_doc_point_from_offset (view, page, x_offset,
1605                                        y_offset, &x_new, &y_new) == FALSE)
1606                 return NULL;
1607
1608         image_mapping = ev_pixbuf_cache_get_image_mapping (view->pixbuf_cache, page);
1609
1610         if (image_mapping)
1611                 return ev_image_mapping_find (image_mapping, x_new, y_new);
1612         else
1613                 return NULL;
1614 }
1615
1616 /*** Forms ***/
1617 static EvFormField *
1618 ev_view_get_form_field_at_location (EvView  *view,
1619                                     gdouble  x,
1620                                     gdouble  y)
1621 {
1622         gint page = -1;
1623         gint x_offset = 0, y_offset = 0;
1624         gint x_new = 0, y_new = 0;
1625         GList *forms_mapping;
1626
1627         if (!EV_IS_DOCUMENT_FORMS (view->document))
1628                 return NULL;
1629
1630         x += view->scroll_x;
1631         y += view->scroll_y;
1632
1633         find_page_at_location (view, x, y, &page, &x_offset, &y_offset);
1634
1635         if (page == -1)
1636                 return NULL;
1637
1638         if (get_doc_point_from_offset (view, page, x_offset,
1639                                        y_offset, &x_new, &y_new) == FALSE)
1640                 return NULL;
1641
1642         forms_mapping = ev_pixbuf_cache_get_form_field_mapping (view->pixbuf_cache, page);
1643
1644         if (forms_mapping)
1645                 return ev_form_field_mapping_find (forms_mapping, x_new, y_new);
1646         else
1647                 return NULL;
1648 }
1649
1650 static GdkRegion *
1651 ev_view_form_field_get_region (EvView      *view,
1652                                EvFormField *field)
1653 {
1654         EvRectangle  field_area;
1655         GdkRectangle view_area;
1656         GList       *forms_mapping;
1657
1658         forms_mapping = ev_pixbuf_cache_get_form_field_mapping (view->pixbuf_cache,
1659                                                                 field->page);
1660         ev_form_field_mapping_get_area (forms_mapping, field, &field_area);
1661         doc_rect_to_view_rect (view, field->page, &field_area, &view_area);
1662         view_area.x -= view->scroll_x;
1663         view_area.y -= view->scroll_y;
1664
1665         return gdk_region_rectangle (&view_area);
1666 }
1667
1668 static gboolean
1669 ev_view_forms_remove_widgets (EvView *view)
1670 {
1671         ev_view_remove_all (view);
1672
1673         return FALSE;
1674 }
1675
1676 static void
1677 ev_view_form_field_destroy (GtkWidget *widget,
1678                             EvView    *view)
1679 {
1680         g_idle_add ((GSourceFunc)ev_view_forms_remove_widgets, view);
1681 }
1682
1683 static GtkWidget *
1684 ev_view_form_field_button_create_widget (EvView      *view,
1685                                          EvFormField *field)
1686 {
1687         EvFormFieldButton *field_button = EV_FORM_FIELD_BUTTON (field);
1688         GdkRegion         *field_region = NULL;
1689
1690         switch (field_button->type) {
1691                 case EV_FORM_FIELD_BUTTON_PUSH:
1692                         return NULL;
1693                 case EV_FORM_FIELD_BUTTON_CHECK:
1694                 case EV_FORM_FIELD_BUTTON_RADIO: {
1695                         gboolean  state;
1696                         GList    *forms_mapping, *l;
1697
1698                         state = ev_document_forms_form_field_button_get_state (EV_DOCUMENT_FORMS (view->document),
1699                                                                                field);
1700
1701                         /* FIXME: it actually depends on NoToggleToOff flags */
1702                         if (field_button->type == EV_FORM_FIELD_BUTTON_RADIO &&
1703                             state && field_button->state)
1704                                 return NULL;
1705
1706                         field_region = ev_view_form_field_get_region (view, field);
1707
1708                         /* For radio buttons and checkbox buttons that are in a set
1709                          * we need to update also the region for the current selected item
1710                          */
1711                         forms_mapping = ev_pixbuf_cache_get_form_field_mapping (view->pixbuf_cache,
1712                                                                                 field->page);
1713                         for (l = forms_mapping; l; l = g_list_next (l)) {
1714                                 EvFormField *button = ((EvFormFieldMapping *)(l->data))->field;
1715                                 GdkRegion   *button_region;
1716
1717                                 if (button->id == field->id)
1718                                         continue;
1719
1720                                 /* FIXME: only buttons in the same group should be updated */
1721                                 if (!EV_IS_FORM_FIELD_BUTTON (button) ||
1722                                     EV_FORM_FIELD_BUTTON (button)->type != field_button->type ||
1723                                     EV_FORM_FIELD_BUTTON (button)->state != TRUE)
1724                                         continue;
1725
1726                                 button_region = ev_view_form_field_get_region (view, button);
1727                                 gdk_region_union (field_region, button_region);
1728                                 gdk_region_destroy (button_region);
1729                         }
1730
1731                         ev_document_forms_form_field_button_set_state (EV_DOCUMENT_FORMS (view->document),
1732                                                                        field, !state);
1733                         field_button->state = !state;
1734                 }
1735                         break;
1736         }
1737
1738         ev_pixbuf_cache_reload_page (view->pixbuf_cache,
1739                                      field_region,
1740                                      field->page,
1741                                      view->rotation,
1742                                      view->scale);
1743         gdk_region_destroy (field_region);
1744
1745         return NULL;
1746 }
1747
1748 static void
1749 ev_view_form_field_text_save (EvView    *view,
1750                               GtkWidget *widget)
1751 {
1752         EvFormField *field;
1753
1754         if (!view->document)
1755                 return;
1756
1757         field = g_object_get_data (G_OBJECT (widget), "form-field");
1758
1759         if (field->changed) {
1760                 EvFormFieldText *field_text = EV_FORM_FIELD_TEXT (field);
1761                 GdkRegion       *field_region;
1762
1763                 field_region = ev_view_form_field_get_region (view, field);
1764
1765                 ev_document_forms_form_field_text_set_text (EV_DOCUMENT_FORMS (view->document),
1766                                                             field, field_text->text);
1767                 field->changed = FALSE;
1768                 ev_pixbuf_cache_reload_page (view->pixbuf_cache,
1769                                              field_region,
1770                                              field->page,
1771                                              view->rotation,
1772                                              view->scale);
1773                 gdk_region_destroy (field_region);
1774         }
1775 }
1776
1777 static void
1778 ev_view_form_field_text_changed (GtkWidget   *widget,
1779                                  EvFormField *field)
1780 {
1781         EvFormFieldText *field_text = EV_FORM_FIELD_TEXT (field);
1782         gchar           *text = NULL;
1783
1784         if (GTK_IS_ENTRY (widget)) {
1785                 text = g_strdup (gtk_entry_get_text (GTK_ENTRY (widget)));
1786         } else if (GTK_IS_TEXT_BUFFER (widget)) {
1787                 GtkTextIter start, end;
1788
1789                 gtk_text_buffer_get_bounds (GTK_TEXT_BUFFER (widget), &start, &end);
1790                 text = gtk_text_buffer_get_text (GTK_TEXT_BUFFER (widget),
1791                                                  &start, &end, FALSE);
1792         }
1793
1794         if (!field_text->text ||
1795             (field_text->text && g_ascii_strcasecmp (field_text->text, text) != 0)) {
1796                 g_free (field_text->text);
1797                 field_text->text = text;
1798                 field->changed = TRUE;
1799         }
1800 }
1801
1802 static GtkWidget *
1803 ev_view_form_field_text_create_widget (EvView      *view,
1804                                        EvFormField *field)
1805 {
1806         EvFormFieldText *field_text = EV_FORM_FIELD_TEXT (field);
1807         GtkWidget       *text = NULL;
1808         gchar           *txt;
1809
1810         txt = ev_document_forms_form_field_text_get_text (EV_DOCUMENT_FORMS (view->document),
1811                                                           field);
1812
1813         switch (field_text->type) {
1814                 case EV_FORM_FIELD_TEXT_FILE_SELECT:
1815                         /* TODO */
1816                 case EV_FORM_FIELD_TEXT_NORMAL:
1817                         text = gtk_entry_new ();
1818                         gtk_entry_set_has_frame (GTK_ENTRY (text), FALSE);
1819                         gtk_entry_set_max_length (GTK_ENTRY (text), field_text->max_len);
1820                         gtk_entry_set_visibility (GTK_ENTRY (text), !field_text->is_password);
1821
1822                         if (txt) {
1823                                 gtk_entry_set_text (GTK_ENTRY (text), txt);
1824                                 g_free (txt);
1825                         }
1826
1827                         g_signal_connect (G_OBJECT (text), "changed",
1828                                           G_CALLBACK (ev_view_form_field_text_changed),
1829                                           field);
1830                         g_signal_connect_after (G_OBJECT (text), "activate",
1831                                                 G_CALLBACK (ev_view_form_field_destroy),
1832                                                 view);
1833                         break;
1834                 case EV_FORM_FIELD_TEXT_MULTILINE: {
1835                         GtkTextBuffer *buffer;
1836
1837                         text = gtk_text_view_new ();
1838                         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (text));
1839
1840                         if (txt) {
1841                                 gtk_text_buffer_set_text (buffer, txt, -1);
1842                                 g_free (txt);
1843                         }
1844
1845                         g_signal_connect (G_OBJECT (buffer), "changed",
1846                                           G_CALLBACK (ev_view_form_field_text_changed),
1847                                           field);
1848                 }
1849                         break;
1850         }
1851
1852         g_object_weak_ref (G_OBJECT (text),
1853                            (GWeakNotify)ev_view_form_field_text_save,
1854                            view);
1855
1856         return text;
1857 }
1858
1859 static void
1860 ev_view_form_field_choice_save (EvView    *view,
1861                                 GtkWidget *widget)
1862 {
1863         EvFormField *field;
1864
1865         if (!view->document)
1866                 return;
1867
1868         field = g_object_get_data (G_OBJECT (widget), "form-field");
1869
1870         if (field->changed) {
1871                 GList             *l;
1872                 EvFormFieldChoice *field_choice = EV_FORM_FIELD_CHOICE (field);
1873                 GdkRegion         *field_region;
1874
1875                 field_region = ev_view_form_field_get_region (view, field);
1876
1877                 if (field_choice->is_editable) {
1878                         ev_document_forms_form_field_choice_set_text (EV_DOCUMENT_FORMS (view->document),
1879                                                                       field, field_choice->text);
1880                 } else {
1881                         ev_document_forms_form_field_choice_unselect_all (EV_DOCUMENT_FORMS (view->document), field);
1882                         for (l = field_choice->selected_items; l; l = g_list_next (l)) {
1883                                 ev_document_forms_form_field_choice_select_item (EV_DOCUMENT_FORMS (view->document),
1884                                                                                  field,
1885                                                                                  GPOINTER_TO_INT (l->data));
1886                         }
1887                 }
1888                 field->changed = FALSE;
1889                 ev_pixbuf_cache_reload_page (view->pixbuf_cache,
1890                                              field_region,
1891                                              field->page,
1892                                              view->rotation,
1893                                              view->scale);
1894                 gdk_region_destroy (field_region);
1895         }
1896 }
1897
1898 static void
1899 ev_view_form_field_choice_changed (GtkWidget   *widget,
1900                                    EvFormField *field)
1901 {
1902         EvFormFieldChoice *field_choice = EV_FORM_FIELD_CHOICE (field);
1903
1904         if (GTK_IS_COMBO_BOX (widget)) {
1905                 gint item;
1906
1907                 item = gtk_combo_box_get_active (GTK_COMBO_BOX (widget));
1908                 if (GPOINTER_TO_INT (field_choice->selected_items->data) != item) {
1909                         g_list_free (field_choice->selected_items);
1910                         field_choice->selected_items = NULL;
1911                         field_choice->selected_items = g_list_prepend (field_choice->selected_items,
1912                                                                        GINT_TO_POINTER (item));
1913                         field->changed = TRUE;
1914                 }
1915
1916                 if (GTK_IS_COMBO_BOX_ENTRY (widget)) {
1917                         gchar *text;
1918
1919                         text = gtk_combo_box_get_active_text (GTK_COMBO_BOX (widget));
1920                         if (!field_choice->text ||
1921                             (field_choice->text && g_ascii_strcasecmp (field_choice->text, text) != 0)) {
1922                                 g_free (field_choice->text);
1923                                 field_choice->text = text;
1924                                 field->changed = TRUE;
1925                         }
1926                 }
1927         } else if (GTK_IS_TREE_SELECTION (widget)) {
1928                 GtkTreeSelection *selection = GTK_TREE_SELECTION (widget);
1929                 GtkTreeModel     *model;
1930                 GList            *items, *l;
1931
1932                 items = gtk_tree_selection_get_selected_rows (selection, &model);
1933                 g_list_free (field_choice->selected_items);
1934                 field_choice->selected_items = NULL;
1935
1936                 for (l = items; l && l->data; l = g_list_next (l)) {
1937                         GtkTreeIter  iter;
1938                         GtkTreePath *path = (GtkTreePath *)l->data;
1939                         gint         item;
1940
1941                         gtk_tree_model_get_iter (model, &iter, path);
1942                         gtk_tree_model_get (model, &iter, 1, &item, -1);
1943
1944                         field_choice->selected_items = g_list_prepend (field_choice->selected_items,
1945                                                                        GINT_TO_POINTER (item));
1946
1947                         gtk_tree_path_free (path);
1948                 }
1949
1950                 g_list_free (items);
1951
1952                 field->changed = TRUE;
1953         }
1954 }
1955
1956 static GtkWidget *
1957 ev_view_form_field_choice_create_widget (EvView      *view,
1958                                          EvFormField *field)
1959 {
1960         EvFormFieldChoice *field_choice = EV_FORM_FIELD_CHOICE (field);
1961         GtkWidget         *choice;
1962         GtkTreeModel      *model;
1963         gint               n_items, i;
1964         gint               selected_item = 0;
1965
1966         n_items = ev_document_forms_form_field_choice_get_n_items (EV_DOCUMENT_FORMS (view->document),
1967                                                                    field);
1968         model = GTK_TREE_MODEL (gtk_list_store_new (2, G_TYPE_STRING, G_TYPE_INT));
1969         for (i = 0; i < n_items; i++) {
1970                 GtkTreeIter iter;
1971                 gchar      *item;
1972
1973                 item = ev_document_forms_form_field_choice_get_item (EV_DOCUMENT_FORMS (view->document),
1974                                                                      field, i);
1975                 if (ev_document_forms_form_field_choice_is_item_selected (
1976                             EV_DOCUMENT_FORMS (view->document), field, i)) {
1977                         selected_item = i;
1978                         /* FIXME: we need a get_selected_items function in poppler */
1979                         field_choice->selected_items = g_list_prepend (field_choice->selected_items,
1980                                                                        GINT_TO_POINTER (i));
1981                 }
1982
1983                 if (item) {
1984                         gtk_list_store_append (GTK_LIST_STORE (model), &iter);
1985                         gtk_list_store_set (GTK_LIST_STORE (model), &iter,
1986                                             0, item,
1987                                             1, i,
1988                                             -1);
1989                         g_free (item);
1990                 }
1991         }
1992
1993         if (field_choice->type == EV_FORM_FIELD_CHOICE_LIST) {
1994                 GtkCellRenderer  *renderer;
1995                 GtkWidget        *tree_view;
1996                 GtkTreeSelection *selection;
1997
1998                 tree_view = gtk_tree_view_new_with_model (model);
1999                 gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (tree_view), FALSE);
2000
2001                 selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (tree_view));
2002                 if (field_choice->multi_select) {
2003                         gtk_tree_selection_set_mode (selection, GTK_SELECTION_MULTIPLE);
2004                 }
2005
2006                 /* TODO: set selected items */
2007
2008                 renderer = gtk_cell_renderer_text_new ();
2009                 gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (tree_view),
2010                                                              0,
2011                                                              "choix", renderer,
2012                                                              "text", 0,
2013                                                              NULL);
2014
2015                 choice = gtk_scrolled_window_new (NULL, NULL);
2016                 gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (choice),
2017                                                 GTK_POLICY_AUTOMATIC,
2018                                                 GTK_POLICY_AUTOMATIC);
2019                 gtk_container_add (GTK_CONTAINER (choice), tree_view);
2020                 gtk_widget_show (tree_view);
2021
2022                 g_signal_connect (G_OBJECT (selection), "changed",
2023                                   G_CALLBACK (ev_view_form_field_choice_changed),
2024                                   field);
2025                 g_signal_connect_after (G_OBJECT (selection), "changed",
2026                                         G_CALLBACK (ev_view_form_field_destroy),
2027                                         view);
2028         } else if (field_choice->is_editable) { /* ComboBoxEntry */
2029                 gchar *text;
2030
2031                 choice = gtk_combo_box_entry_new_with_model (model, 0);
2032                 text = ev_document_forms_form_field_choice_get_text (EV_DOCUMENT_FORMS (view->document), field);
2033                 if (text) {
2034                         gtk_entry_set_text (GTK_ENTRY (gtk_bin_get_child (GTK_BIN (choice))), text);
2035                         g_free (text);
2036                 }
2037
2038                 g_signal_connect (G_OBJECT (choice), "changed",
2039                                   G_CALLBACK (ev_view_form_field_choice_changed),
2040                                   field);
2041                 g_signal_connect_after (G_OBJECT (GTK_BIN (choice)->child), "activate",
2042                                         G_CALLBACK (ev_view_form_field_destroy),
2043                                         view);
2044         } else { /* ComboBoxText */
2045                 GtkCellRenderer *renderer;
2046
2047                 choice = gtk_combo_box_new_with_model (model);
2048                 renderer = gtk_cell_renderer_text_new ();
2049                 gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (choice),
2050                                             renderer, TRUE);
2051                 gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (choice),
2052                                                 renderer,
2053                                                 "text", 0,
2054                                                 NULL);
2055                 gtk_combo_box_set_active (GTK_COMBO_BOX (choice), selected_item);
2056                 gtk_combo_box_popup (GTK_COMBO_BOX (choice));
2057
2058                 g_signal_connect (G_OBJECT (choice), "changed",
2059                                   G_CALLBACK (ev_view_form_field_choice_changed),
2060                                   field);
2061                 g_signal_connect_after (G_OBJECT (choice), "changed",
2062                                         G_CALLBACK (ev_view_form_field_destroy),
2063                                         view);
2064         }
2065
2066         g_object_unref (model);
2067
2068         g_object_weak_ref (G_OBJECT (choice),
2069                            (GWeakNotify)ev_view_form_field_choice_save,
2070                            view);
2071
2072         return choice;
2073 }
2074
2075 static void
2076 ev_view_handle_form_field (EvView      *view,
2077                            EvFormField *field,
2078                            gdouble      x,
2079                            gdouble      y)
2080 {
2081         GtkWidget   *field_widget = NULL;
2082         GList       *form_field_mapping;
2083         EvRectangle  field_area;
2084         GdkRectangle view_area;
2085
2086         if (field->is_read_only)
2087                 return;
2088
2089         if (EV_IS_FORM_FIELD_BUTTON (field)) {
2090                 field_widget = ev_view_form_field_button_create_widget (view, field);
2091         } else if (EV_IS_FORM_FIELD_TEXT (field)) {
2092                 field_widget = ev_view_form_field_text_create_widget (view, field);
2093         } else if (EV_IS_FORM_FIELD_CHOICE (field)) {
2094                 field_widget = ev_view_form_field_choice_create_widget (view, field);
2095         } else if (EV_IS_FORM_FIELD_SIGNATURE (field)) {
2096                 /* TODO */
2097         }
2098
2099         /* Form field doesn't require a widget */
2100         if (!field_widget)
2101                 return;
2102
2103         g_object_set_data_full (G_OBJECT (field_widget), "form-field",
2104                                 g_object_ref (field),
2105                                 (GDestroyNotify)g_object_unref);
2106
2107         form_field_mapping = ev_pixbuf_cache_get_form_field_mapping (view->pixbuf_cache, field->page);
2108         ev_form_field_mapping_get_area (form_field_mapping, field, &field_area);
2109
2110         doc_rect_to_view_rect (view, field->page, &field_area, &view_area);
2111         view_area.x -= view->scroll_x;
2112         view_area.y -= view->scroll_y;
2113
2114         gtk_layout_put (GTK_LAYOUT (view), field_widget, view_area.x, view_area.y);
2115         gtk_widget_show (field_widget);
2116         gtk_widget_grab_focus (field_widget);
2117 }
2118
2119 /*** GtkWidget implementation ***/
2120
2121 static void
2122 ev_view_size_request_continuous_dual_page (EvView         *view,
2123                                            GtkRequisition *requisition)
2124 {
2125         int max_width;
2126         gint n_pages;
2127         GtkBorder border;
2128
2129         ev_page_cache_get_max_width (view->page_cache, view->rotation,
2130                                      view->scale, &max_width);
2131         compute_border (view, max_width, max_width, &border);
2132
2133         n_pages = ev_page_cache_get_n_pages (view->page_cache) + 1;
2134
2135         requisition->width = (max_width + border.left + border.right) * 2 + (view->spacing * 3);
2136         get_page_y_offset (view, n_pages, view->scale, &requisition->height);
2137
2138         if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
2139                 requisition->width = 1;
2140         } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
2141                 requisition->width = 1;
2142                 /* FIXME: This could actually be set on one page docs or docs
2143                  * with a strange aspect ratio. */
2144                 /* requisition->height = 1;*/
2145         }
2146 }
2147
2148 static void
2149 ev_view_size_request_continuous (EvView         *view,
2150                                  GtkRequisition *requisition)
2151 {
2152         int max_width;
2153         int n_pages;
2154         GtkBorder border;
2155
2156
2157         ev_page_cache_get_max_width (view->page_cache, view->rotation,
2158                                      view->scale, &max_width);
2159         n_pages = ev_page_cache_get_n_pages (view->page_cache);
2160         compute_border (view, max_width, max_width, &border);
2161
2162         requisition->width = max_width + (view->spacing * 2) + border.left + border.right;
2163         get_page_y_offset (view, n_pages, view->scale, &requisition->height);
2164
2165         if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
2166                 requisition->width = 1;
2167         } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
2168                 requisition->width = 1;
2169                 /* FIXME: This could actually be set on one page docs or docs
2170                  * with a strange aspect ratio. */
2171                 /* requisition->height = 1;*/
2172         }
2173 }
2174
2175 static void
2176 ev_view_size_request_dual_page (EvView         *view,
2177                                 GtkRequisition *requisition)
2178 {
2179         GtkBorder border;
2180         gint width, height;
2181
2182         /* Find the largest of the two. */
2183         ev_page_cache_get_size (view->page_cache,
2184                                 view->current_page,
2185                                 view->rotation,
2186                                 view->scale,
2187                                 &width, &height);
2188         if (view->current_page + 1 < ev_page_cache_get_n_pages (view->page_cache)) {
2189                 gint width_2, height_2;
2190                 ev_page_cache_get_size (view->page_cache,
2191                                         view->current_page + 1,
2192                                         view->rotation,
2193                                         view->scale,
2194                                         &width_2, &height_2);
2195                 if (width_2 > width) {
2196                         width = width_2;
2197                         height = height_2;
2198                 }
2199         }
2200         compute_border (view, width, height, &border);
2201
2202         requisition->width = ((width + border.left + border.right) * 2) +
2203                 (view->spacing * 3);
2204         requisition->height = (height + border.top + border.bottom) +
2205                 (view->spacing * 2);
2206
2207         if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
2208                 requisition->width = 1;
2209         } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
2210                 requisition->width = 1;
2211                 requisition->height = 1;
2212         }
2213 }
2214
2215 static void
2216 ev_view_size_request_single_page (EvView         *view,
2217                                   GtkRequisition *requisition)
2218 {
2219         GtkBorder border;
2220         gint width, height;
2221
2222         ev_page_cache_get_size (view->page_cache,
2223                                 view->current_page,
2224                                 view->rotation,
2225                                 view->scale,
2226                                 &width, &height);
2227         compute_border (view, width, height, &border);
2228
2229         requisition->width = width + border.left + border.right + (2 * view->spacing);
2230         requisition->height = height + border.top + border.bottom + (2 * view->spacing);
2231
2232         if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
2233                 requisition->width = 1;
2234                 requisition->height = height + border.top + border.bottom + (2 * view->spacing);
2235         } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
2236                 requisition->width = 1;
2237                 requisition->height = 1;
2238         }
2239 }
2240
2241 static void
2242 ev_view_size_request (GtkWidget      *widget,
2243                       GtkRequisition *requisition)
2244 {
2245         EvView *view = EV_VIEW (widget);
2246
2247         if (view->document == NULL) {
2248                 requisition->width = 1;
2249                 requisition->height = 1;
2250                 return;
2251         }
2252
2253         if (view->presentation) {
2254                 requisition->width = 1;
2255                 requisition->height = 1;
2256                 return;
2257         }
2258
2259         if (view->continuous && view->dual_page)
2260                 ev_view_size_request_continuous_dual_page (view, requisition);
2261         else if (view->continuous)
2262                 ev_view_size_request_continuous (view, requisition);
2263         else if (view->dual_page)
2264                 ev_view_size_request_dual_page (view, requisition);
2265         else
2266                 ev_view_size_request_single_page (view, requisition);
2267 }
2268
2269 static void
2270 ev_view_size_allocate (GtkWidget      *widget,
2271                        GtkAllocation  *allocation)
2272 {
2273         EvView *view = EV_VIEW (widget);
2274         GList  *children, *l;
2275
2276         GTK_WIDGET_CLASS (ev_view_parent_class)->size_allocate (widget, allocation);
2277
2278         if (view->sizing_mode == EV_SIZING_FIT_WIDTH ||
2279             view->sizing_mode == EV_SIZING_BEST_FIT) {
2280
2281                 g_signal_emit (view, signals[SIGNAL_ZOOM_INVALID], 0);
2282
2283                 ev_view_size_request (widget, &widget->requisition);
2284         }
2285
2286         view_set_adjustment_values (view, GTK_ORIENTATION_HORIZONTAL);
2287         view_set_adjustment_values (view, GTK_ORIENTATION_VERTICAL);
2288
2289         if (view->document)
2290                 view_update_range_and_current_page (view);
2291
2292         view->pending_scroll = SCROLL_TO_KEEP_POSITION;
2293         view->pending_resize = FALSE;
2294
2295         children = gtk_container_get_children (GTK_CONTAINER (widget));
2296         for (l = children; l && l->data; l = g_list_next (l)) {
2297                 EvFormField   *field;
2298                 EvRectangle    field_area;
2299                 GdkRectangle   view_area;
2300                 GList         *form_field_mapping;
2301                 GtkAllocation  child_allocation;
2302                 GtkRequisition child_requisition;
2303                 GtkWidget     *child = (GtkWidget *)l->data;
2304
2305                 field = g_object_get_data (G_OBJECT (child), "form-field");
2306                 if (!field)
2307                         continue;
2308
2309                 form_field_mapping = ev_pixbuf_cache_get_form_field_mapping (view->pixbuf_cache,
2310                                                                              field->page);
2311                 ev_form_field_mapping_get_area (form_field_mapping, field, &field_area);
2312
2313                 doc_rect_to_view_rect (view, field->page, &field_area, &view_area);
2314                 view_area.x -= view->scroll_x;
2315                 view_area.y -= view->scroll_y;
2316
2317                 gtk_widget_size_request (child, &child_requisition);
2318                 if (child_requisition.width != view_area.width ||
2319                     child_requisition.height != view_area.height)
2320                         gtk_widget_set_size_request (child, view_area.width, view_area.height);
2321
2322                 gtk_container_child_get (GTK_CONTAINER (widget),
2323                                          child,
2324                                          "x", &child_allocation.x,
2325                                          "y", &child_allocation.y,
2326                                          NULL);
2327                 if (child_allocation.x != view_area.x ||
2328                     child_allocation.y != view_area.y) {
2329                         gtk_layout_move (GTK_LAYOUT (widget), child, view_area.x, view_area.y);
2330                 }
2331         }
2332         g_list_free (children);
2333 }
2334
2335 static void
2336 ev_view_realize (GtkWidget *widget)
2337 {
2338         EvView *view = EV_VIEW (widget);
2339
2340         if (GTK_WIDGET_CLASS (ev_view_parent_class)->realize)
2341                 (* GTK_WIDGET_CLASS (ev_view_parent_class)->realize) (widget);
2342
2343         gdk_window_set_events (view->layout.bin_window,
2344                                (gdk_window_get_events (view->layout.bin_window) |
2345                                 GDK_EXPOSURE_MASK |
2346                                 GDK_BUTTON_PRESS_MASK |
2347                                 GDK_BUTTON_RELEASE_MASK |
2348                                 GDK_SCROLL_MASK |
2349                                 GDK_KEY_PRESS_MASK |
2350                                 GDK_POINTER_MOTION_MASK |
2351                                 GDK_POINTER_MOTION_HINT_MASK |
2352                                 GDK_ENTER_NOTIFY_MASK |
2353                                 GDK_LEAVE_NOTIFY_MASK));
2354
2355         if (view->presentation)
2356                 gdk_window_set_background (view->layout.bin_window, &widget->style->black);
2357         else
2358                 gdk_window_set_background (view->layout.bin_window, &widget->style->mid [GTK_STATE_NORMAL]);
2359 }
2360
2361 static gboolean
2362 ev_view_scroll_event (GtkWidget *widget, GdkEventScroll *event)
2363 {
2364         EvView *view = EV_VIEW (widget);
2365         guint state;
2366
2367         state = event->state & gtk_accelerator_get_default_mod_mask ();
2368
2369         if (state == GDK_CONTROL_MASK && view->presentation == FALSE) {
2370                 ev_view_set_sizing_mode (view, EV_SIZING_FREE);
2371
2372                 if (event->direction == GDK_SCROLL_UP ||
2373                     event->direction == GDK_SCROLL_LEFT) {
2374                         if (ev_view_can_zoom_in (view)) {
2375                                 ev_view_zoom_in (view);
2376                         }
2377                 } else {
2378                         if (ev_view_can_zoom_out (view)) {
2379                                 ev_view_zoom_out (view);
2380                         }
2381                 }
2382
2383                 return TRUE;
2384         }
2385
2386         view->jump_to_find_result = FALSE;
2387         /* Shift+Wheel scrolls the in the perpendicular direction */
2388         if (state & GDK_SHIFT_MASK) {
2389                 if (event->direction == GDK_SCROLL_UP)
2390                         event->direction = GDK_SCROLL_LEFT;
2391                 if (event->direction == GDK_SCROLL_LEFT)
2392                         event->direction = GDK_SCROLL_UP;
2393                 if (event->direction == GDK_SCROLL_DOWN)
2394                         event->direction = GDK_SCROLL_RIGHT;
2395                 if (event->direction == GDK_SCROLL_RIGHT)
2396                         event->direction = GDK_SCROLL_DOWN;
2397
2398                 event->state &= ~GDK_SHIFT_MASK;
2399                 state &= ~GDK_SHIFT_MASK;
2400         }
2401
2402         if (state == 0 && view->presentation) {
2403                 switch (event->direction) {
2404                         case GDK_SCROLL_DOWN:
2405                         case GDK_SCROLL_RIGHT:
2406                                 ev_view_next_page (view);
2407                                 break;
2408                         case GDK_SCROLL_UP:
2409                         case GDK_SCROLL_LEFT:
2410                                 ev_view_previous_page (view);
2411                                 break;
2412                 }
2413
2414                 return TRUE;
2415         }
2416
2417         return FALSE;
2418 }
2419
2420 static EvViewSelection *
2421 find_selection_for_page (EvView *view,
2422                          gint    page)
2423 {
2424         GList *list;
2425
2426         for (list = view->selection_info.selections; list != NULL; list = list->next) {
2427                 EvViewSelection *selection;
2428
2429                 selection = (EvViewSelection *) list->data;
2430
2431                 if (selection->page == page)
2432                         return selection;
2433         }
2434
2435         return NULL;
2436 }
2437
2438 static void
2439 draw_end_presentation_page (EvView       *view,
2440                             GdkRectangle *page_area)
2441 {
2442         PangoLayout *layout;
2443         PangoFontDescription *font_desc;
2444         gchar *markup;
2445         const gchar *text = _("End of presentation. Press Escape to exit.");
2446
2447         if (view->presentation_state != EV_PRESENTATION_END)
2448                 return;
2449
2450         layout = gtk_widget_create_pango_layout (GTK_WIDGET (view), NULL);
2451         markup = g_strdup_printf ("<span foreground=\"white\">%s</span>", text);
2452         pango_layout_set_markup (layout, markup, -1);
2453         g_free (markup);
2454
2455         font_desc = pango_font_description_new ();
2456         pango_font_description_set_size (font_desc, 16 * PANGO_SCALE);
2457         pango_layout_set_font_description (layout, font_desc);
2458
2459         gtk_paint_layout (GTK_WIDGET (view)->style,
2460                           view->layout.bin_window,
2461                           GTK_WIDGET_STATE (view),
2462                           FALSE,
2463                           page_area,
2464                           GTK_WIDGET (view),
2465                           NULL,
2466                           page_area->x + 15,
2467                           page_area->y + 15,
2468                           layout);
2469
2470         pango_font_description_free (font_desc);
2471         g_object_unref (layout);
2472 }
2473
2474 static gboolean
2475 ev_view_expose_event (GtkWidget      *widget,
2476                       GdkEventExpose *event)
2477 {
2478         EvView  *view = EV_VIEW (widget);
2479         cairo_t *cr;
2480         gint     i;
2481
2482         if (view->presentation) {
2483                 switch (view->presentation_state) {
2484                         case EV_PRESENTATION_END: {
2485                                 GdkRectangle area = {0};
2486
2487                                 area.width = widget->allocation.width;
2488                                 area.height = widget->allocation.height;
2489
2490                                 draw_end_presentation_page (view, &area);
2491                         }
2492                                 return FALSE;
2493                         case EV_PRESENTATION_BLACK:
2494                         case EV_PRESENTATION_WHITE:
2495                                 return FALSE;
2496                         case EV_PRESENTATION_NORMAL:
2497                         default:
2498                                 break;
2499                 }
2500         } else if (view->loading) {
2501                 GdkRectangle area = {0};
2502
2503                 area.width = widget->allocation.width;
2504                 area.height = widget->allocation.height;
2505
2506                 draw_loading_text (view,
2507                                    &area,
2508                                    &(event->area));
2509         }
2510
2511         if (view->document == NULL)
2512                 return FALSE;
2513
2514         cr = gdk_cairo_create (view->layout.bin_window);
2515
2516         for (i = view->start_page; i <= view->end_page; i++) {
2517                 GdkRectangle page_area;
2518                 GtkBorder border;
2519                 gboolean page_ready = TRUE;
2520
2521                 if (!get_page_extents (view, i, &page_area, &border))
2522                         continue;
2523
2524                 page_area.x -= view->scroll_x;
2525                 page_area.y -= view->scroll_y;
2526
2527                 draw_one_page (view, i, cr, &page_area, &border, &(event->area), &page_ready);
2528
2529                 if (page_ready && EV_IS_DOCUMENT_FIND (view->document) && view->highlight_find_results)
2530                         highlight_find_results (view, i);
2531         }
2532
2533         cairo_destroy (cr);
2534
2535         if (GTK_WIDGET_CLASS (ev_view_parent_class)->expose_event)
2536                 (* GTK_WIDGET_CLASS (ev_view_parent_class)->expose_event) (widget, event);
2537
2538         return FALSE;
2539 }
2540
2541 static gboolean
2542 ev_view_do_popup_menu (EvView *view,
2543                        gdouble x,
2544                        gdouble y)
2545 {
2546         EvLink  *link;
2547         EvImage *image;
2548
2549         image = ev_view_get_image_at_location (view, x, y);
2550         if (image) {
2551                 g_signal_emit (view, signals[SIGNAL_POPUP_MENU], 0, image);
2552                 return TRUE;
2553         }
2554
2555         link = ev_view_get_link_at_location (view, x, y);
2556         if (link) {
2557                 g_signal_emit (view, signals[SIGNAL_POPUP_MENU], 0, link);
2558                 return TRUE;
2559         }
2560
2561         g_signal_emit (view, signals[SIGNAL_POPUP_MENU], 0, NULL);
2562
2563         return TRUE;
2564 }
2565
2566 static gboolean
2567 ev_view_popup_menu (GtkWidget *widget)
2568 {
2569         gint x, y;
2570
2571         gtk_widget_get_pointer (widget, &x, &y);
2572         return ev_view_do_popup_menu (EV_VIEW (widget), x, y);
2573 }
2574
2575 #if GTK_CHECK_VERSION (2, 11, 7)
2576 static void
2577 get_link_area (EvView       *view,
2578                gint          x,
2579                gint          y,
2580                EvLink       *link,
2581                GdkRectangle *area)
2582 {
2583         EvRectangle  ev_rect;
2584         GList       *link_mapping;
2585         gint         page;
2586         gint         x_offset = 0, y_offset = 0;
2587
2588         x += view->scroll_x;
2589         y += view->scroll_y;
2590
2591         find_page_at_location (view, x, y, &page, &x_offset, &y_offset);
2592
2593         link_mapping = ev_pixbuf_cache_get_link_mapping (view->pixbuf_cache, page);
2594         ev_link_mapping_get_area (link_mapping, link, &ev_rect);
2595
2596         doc_rect_to_view_rect (view, page, &ev_rect, area);
2597         area->y -= view->scroll_y ;
2598 }
2599
2600 static gboolean
2601 ev_view_query_tooltip (GtkWidget         *widget,
2602                        gint               x,
2603                        gint               y,
2604                        gboolean           keyboard_tip,
2605                        GtkTooltip        *tooltip)
2606 {
2607         EvView *view = EV_VIEW (widget);
2608         EvLink *link;
2609         gchar  *text;
2610
2611         link = ev_view_get_link_at_location (view, x, y);
2612         if (!link)
2613                 return FALSE;
2614
2615         text = tip_from_link (view, link);
2616         if (text && g_utf8_validate (text, -1, NULL)) {
2617                 GdkRectangle link_area;
2618
2619                 get_link_area (view, x, y, link, &link_area);
2620                 gtk_tooltip_set_text (tooltip, text);
2621                 gtk_tooltip_set_tip_area (tooltip, &link_area);
2622         }
2623         g_free (text);
2624
2625         return TRUE;
2626 }
2627 #endif /* GTK_CHECK_VERSION (2, 11, 7) */
2628
2629 static void
2630 start_selection_for_event (EvView         *view,
2631                            GdkEventButton *event)
2632 {
2633         EvSelectionStyle style;
2634
2635         clear_selection (view);
2636
2637         view->selection_info.start.x = event->x + view->scroll_x;
2638         view->selection_info.start.y = event->y + view->scroll_y;
2639
2640         switch (event->type) {
2641                 case GDK_2BUTTON_PRESS:
2642                         style = EV_SELECTION_STYLE_WORD;
2643                         break;
2644                 case GDK_3BUTTON_PRESS:
2645                         style = EV_SELECTION_STYLE_LINE;
2646                         break;
2647                 default:
2648                         style = EV_SELECTION_STYLE_GLYPH;
2649                         break;
2650         }
2651
2652         view->selection_info.style = style;
2653 }
2654
2655 static gboolean
2656 ev_view_button_press_event (GtkWidget      *widget,
2657                             GdkEventButton *event)
2658 {
2659         EvView *view = EV_VIEW (widget);
2660
2661         if (!view->document)
2662                 return FALSE;
2663
2664         if (!GTK_WIDGET_HAS_FOCUS (widget)) {
2665                 gtk_widget_grab_focus (widget);
2666         }
2667
2668         view->pressed_button = event->button;
2669         view->selection_info.in_drag = FALSE;
2670
2671         switch (event->button) {
2672                 case 1: {
2673
2674                         if (view->scroll_info.autoscrolling == TRUE) {
2675                                 view->scroll_info.autoscrolling = FALSE;
2676                                 return TRUE;
2677                         }
2678
2679                         EvImage *image;
2680                         EvFormField *field;
2681
2682                         if (EV_IS_SELECTION (view->document) && view->selection_info.selections) {
2683                                 if (event->type == GDK_3BUTTON_PRESS) {
2684                                         start_selection_for_event (view, event);
2685                                 } else if (location_in_selected_text (view,
2686                                                                event->x + view->scroll_x,
2687                                                                event->y + view->scroll_y)) {
2688                                         view->selection_info.in_drag = TRUE;
2689                                 } else {
2690                                         start_selection_for_event (view, event);
2691                                 }
2692
2693                                 gtk_widget_queue_draw (widget);
2694                         } else if ((field = ev_view_get_form_field_at_location (view, event->x, event->y))) {
2695                                 ev_view_remove_all (view);
2696                                 ev_view_handle_form_field (view, field, event->x, event->y);
2697                         } else if (!location_in_text (view, event->x + view->scroll_x, event->y + view->scroll_y) &&
2698                                    (image = ev_view_get_image_at_location (view, event->x, event->y))) {
2699                                 if (view->image_dnd_info.image)
2700                                         g_object_unref (view->image_dnd_info.image);
2701                                 view->image_dnd_info.image = g_object_ref (image);
2702                                 view->image_dnd_info.in_drag = TRUE;
2703
2704                                 view->image_dnd_info.start.x = event->x + view->scroll_x;
2705                                 view->image_dnd_info.start.y = event->y + view->scroll_y;
2706                         } else {
2707                                 ev_view_remove_all (view);
2708
2709                                 if (EV_IS_SELECTION (view->document))
2710                                         start_selection_for_event (view, event);
2711                         }
2712                 }
2713                         return TRUE;
2714                 case 2:
2715                         /* use root coordinates as reference point because
2716                          * scrolling changes window relative coordinates */
2717                         if (view->scroll_info.autoscrolling == TRUE) {
2718                                 view->scroll_info.autoscrolling = FALSE;
2719                                 return TRUE;
2720                         }
2721                         view->drag_info.start.x = event->x_root;
2722                         view->drag_info.start.y = event->y_root;
2723                         view->drag_info.hadj = gtk_adjustment_get_value (view->hadjustment);
2724                         view->drag_info.vadj = gtk_adjustment_get_value (view->vadjustment);
2725
2726                         ev_view_set_cursor (view, EV_VIEW_CURSOR_DRAG);
2727
2728                         return TRUE;
2729                 case 3:
2730                         if (!view->scroll_info.autoscrolling)
2731                                 view->scroll_info.start_y = event->y;
2732                         return ev_view_do_popup_menu (view, event->x, event->y);
2733         }
2734
2735         return FALSE;
2736 }
2737
2738 static void
2739 ev_view_remove_all (EvView *view)
2740 {
2741         GList *children, *child;
2742
2743         children = gtk_container_get_children (GTK_CONTAINER (view));
2744         for (child = children; child && child->data; child = g_list_next (child)) {
2745                 gtk_container_remove (GTK_CONTAINER (view),
2746                                       GTK_WIDGET (child->data));
2747         }
2748         g_list_free (children);
2749 }
2750
2751 /*** Drag and Drop ***/
2752 static void
2753 ev_view_drag_data_get (GtkWidget        *widget,
2754                        GdkDragContext   *context,
2755                        GtkSelectionData *selection_data,
2756                        guint             info,
2757                        guint             time)
2758 {
2759         EvView *view = EV_VIEW (widget);
2760
2761         switch (info) {
2762                 case TARGET_DND_TEXT:
2763                         if (EV_IS_SELECTION (view->document) &&
2764                             view->selection_info.selections) {
2765                                 gchar *text;
2766
2767                                 text = get_selected_text (view);
2768                                 gtk_selection_data_set_text (selection_data,
2769                                                              text,
2770                                                              strlen (text));
2771                                 g_free (text);
2772                         }
2773                         break;
2774                 case TARGET_DND_IMAGE:
2775                         if (view->image_dnd_info.image) {
2776                                 GdkPixbuf *pixbuf;
2777
2778                                 pixbuf = ev_image_get_pixbuf (view->image_dnd_info.image);
2779                                 gtk_selection_data_set_pixbuf (selection_data, pixbuf);
2780                         }
2781                         break;
2782                 case TARGET_DND_URI:
2783                         if (view->image_dnd_info.image) {
2784                                 const gchar *tmp_uri;
2785                                 gchar      **uris;
2786
2787                                 tmp_uri = ev_image_save_tmp (view->image_dnd_info.image);
2788
2789                                 uris = g_new0 (gchar *, 2);
2790                                 uris[0] = (gchar *)tmp_uri;
2791
2792                                 gtk_selection_data_set_uris (selection_data, uris);
2793
2794                                 /* g_free instead of g_strfreev since tmp_uri is const */
2795                                 g_free (uris);
2796                         }
2797         }
2798 }
2799
2800 static gboolean
2801 ev_view_drag_motion (GtkWidget      *widget,
2802                      GdkDragContext *context,
2803                      gint            x,
2804                      gint            y,
2805                      guint           time)
2806 {
2807         if (gtk_drag_get_source_widget (context) == widget)
2808                 gdk_drag_status (context, 0, time);
2809         else
2810                 gdk_drag_status (context, context->suggested_action, time);
2811
2812         return TRUE;
2813 }
2814
2815 static void
2816 ev_view_drag_data_received (GtkWidget          *widget,
2817                             GdkDragContext     *context,
2818                             gint                x,
2819                             gint                y,
2820                             GtkSelectionData   *selection_data,
2821                             guint               info,
2822                             guint               time)
2823 {
2824         gchar  **uris;
2825         gint     i = 0;
2826         GSList  *uri_list = NULL;
2827
2828         uris = gtk_selection_data_get_uris (selection_data);
2829         if (!uris) {
2830                 gtk_drag_finish (context, FALSE, FALSE, time);
2831                 return;
2832         }
2833
2834         for (i = 0; uris[i]; i++) {
2835                 uri_list = g_slist_prepend (uri_list, (gpointer) uris[i]);
2836         }
2837
2838         ev_application_open_uri_list (EV_APP, uri_list,
2839                                       gtk_widget_get_screen (widget),
2840                                       0);
2841         gtk_drag_finish (context, TRUE, FALSE, time);
2842
2843         g_strfreev (uris);
2844         g_slist_free (uri_list);
2845 }
2846
2847
2848 static gboolean
2849 selection_update_idle_cb (EvView *view)
2850 {
2851         compute_selections (view,
2852                             view->selection_info.style,
2853                             &view->selection_info.start,
2854                             &view->motion);
2855         view->selection_update_id = 0;
2856         return FALSE;
2857 }
2858
2859 static gboolean
2860 selection_scroll_timeout_cb (EvView *view)
2861 {
2862         gint x, y, shift = 0;
2863         GtkWidget *widget = GTK_WIDGET (view);
2864
2865         gtk_widget_get_pointer (widget, &x, &y);
2866
2867         if (y > widget->allocation.height) {
2868                 shift = (y - widget->allocation.height) / 2;
2869         } else if (y < 0) {
2870                 shift = y / 2;
2871         }
2872
2873         if (shift)
2874                 gtk_adjustment_set_value (view->vadjustment,
2875                                           CLAMP (view->vadjustment->value + shift,
2876                                           view->vadjustment->lower,
2877                                           view->vadjustment->upper -
2878                                           view->vadjustment->page_size));
2879
2880         if (x > widget->allocation.width) {
2881                 shift = (x - widget->allocation.width) / 2;
2882         } else if (x < 0) {
2883                 shift = x / 2;
2884         }
2885
2886         if (shift)
2887                 gtk_adjustment_set_value (view->hadjustment,
2888                                           CLAMP (view->hadjustment->value + shift,
2889                                           view->hadjustment->lower,
2890                                           view->hadjustment->upper -
2891                                           view->hadjustment->page_size));
2892
2893         return TRUE;
2894 }
2895
2896 static gboolean
2897 ev_view_drag_update_momentum (EvView *view)
2898 {
2899         int i;
2900         if (!view->drag_info.in_drag)
2901                 return FALSE;
2902
2903         for (i = DRAG_HISTORY - 1; i > 0; i--) {
2904                 view->drag_info.buffer[i].x = view->drag_info.buffer[i-1].x;
2905                 view->drag_info.buffer[i].y = view->drag_info.buffer[i-1].y;
2906         }
2907
2908         /* Momentum is a moving average of 10ms granularity over
2909          * the last 100ms with each 10ms stored in buffer.
2910          */
2911
2912         view->drag_info.momentum.x = (view->drag_info.buffer[DRAG_HISTORY - 1].x - view->drag_info.buffer[0].x);
2913         view->drag_info.momentum.y = (view->drag_info.buffer[DRAG_HISTORY - 1].y - view->drag_info.buffer[0].y);
2914
2915         return TRUE;
2916 }
2917
2918 static gboolean
2919 ev_view_scroll_drag_release (EvView *view)
2920 {
2921         gdouble dhadj_value, dvadj_value;
2922         gdouble oldhadjustment, oldvadjustment;
2923
2924         view->drag_info.momentum.x /= 1.2;
2925         view->drag_info.momentum.y /= 1.2; /* Alter these constants to change "friction" */
2926
2927         dhadj_value = view->hadjustment->page_size *
2928                       (gdouble)view->drag_info.momentum.x / GTK_WIDGET (view)->allocation.width;
2929         dvadj_value = view->vadjustment->page_size *
2930                       (gdouble)view->drag_info.momentum.y / GTK_WIDGET (view)->allocation.height;
2931
2932         oldhadjustment = gtk_adjustment_get_value (view->hadjustment);
2933         oldvadjustment = gtk_adjustment_get_value (view->vadjustment);
2934
2935         if (((oldhadjustment + dhadj_value) > (view->hadjustment->upper - view->hadjustment->page_size)) ||
2936            ((oldhadjustment + dhadj_value) < 0))
2937                 view->drag_info.momentum.x *= -0.5; /* 0.5 rather than 1 means the edges absorb some momentum */
2938         if (((oldvadjustment + dvadj_value) > (view->vadjustment->upper - view->vadjustment->page_size)) ||
2939            ((oldvadjustment + dvadj_value) < 0))
2940                 view->drag_info.momentum.y *= -0.5;
2941
2942         gtk_adjustment_set_value (view->hadjustment,
2943                                 MIN (oldhadjustment + dhadj_value,
2944                                 view->hadjustment->upper - view->hadjustment->page_size));
2945         gtk_adjustment_set_value (view->vadjustment,
2946                                 MIN (oldvadjustment + dvadj_value,
2947                                 view->vadjustment->upper - view->vadjustment->page_size));
2948
2949         if (((view->drag_info.momentum.x < 1) && (view->drag_info.momentum.x > -1)) &&
2950            ((view->drag_info.momentum.y < 1) && (view->drag_info.momentum.y > -1)))
2951                 return FALSE;
2952         else
2953                 return TRUE;
2954 }
2955
2956 static gboolean
2957 ev_view_motion_notify_event (GtkWidget      *widget,
2958                              GdkEventMotion *event)
2959 {
2960         EvView *view = EV_VIEW (widget);
2961         gint x, y;
2962
2963         if (!view->document)
2964                 return FALSE;
2965
2966
2967         if (event->is_hint || event->window != view->layout.bin_window) {
2968             gtk_widget_get_pointer (widget, &x, &y);
2969         } else {
2970             x = event->x;
2971             y = event->y;
2972         }
2973
2974         if (view->scroll_info.autoscrolling) {
2975                 view->scroll_info.last_y = y;
2976         }
2977
2978         if (view->selection_info.in_drag) {
2979                 if (gtk_drag_check_threshold (widget,
2980                                               view->selection_info.start.x,
2981                                               view->selection_info.start.y,
2982                                               x, y)) {
2983                         GtkTargetList *target_list = gtk_target_list_new (NULL, 0);
2984
2985                         gtk_target_list_add_text_targets (target_list, TARGET_DND_TEXT);
2986
2987                         gtk_drag_begin (widget, target_list,
2988                                         GDK_ACTION_COPY,
2989                                         1, (GdkEvent *)event);
2990
2991                         view->selection_info.in_drag = FALSE;
2992
2993                         gtk_target_list_unref (target_list);
2994
2995                         return TRUE;
2996                 }
2997         } else if (view->image_dnd_info.in_drag) {
2998                 if (gtk_drag_check_threshold (widget,
2999                                               view->selection_info.start.x,
3000                                               view->selection_info.start.y,
3001                                               x, y)) {
3002                         GtkTargetList *target_list = gtk_target_list_new (NULL, 0);
3003
3004                         gtk_target_list_add_uri_targets (target_list, TARGET_DND_URI);
3005                         gtk_target_list_add_image_targets (target_list, TARGET_DND_IMAGE, TRUE);
3006
3007                         gtk_drag_begin (widget, target_list,
3008                                         GDK_ACTION_COPY,
3009                                         1, (GdkEvent *)event);
3010
3011                         view->image_dnd_info.in_drag = FALSE;
3012
3013                         gtk_target_list_unref (target_list);
3014
3015                         return TRUE;
3016                 }
3017         }
3018
3019         /* For the Evince 0.4.x release, we limit selection to un-rotated
3020          * documents only.
3021          */
3022         if (view->pressed_button == 1 && view->rotation == 0) {
3023
3024                 /* Schedule timeout to scroll during selection and additionally
3025                  * scroll once to allow arbitrary speed. */
3026                 if (!view->selection_scroll_id)
3027                     view->selection_scroll_id = g_timeout_add (SCROLL_TIME, (GSourceFunc)selection_scroll_timeout_cb, view);
3028                 else
3029                     selection_scroll_timeout_cb (view);
3030
3031                 view->selection_info.in_selection = TRUE;
3032                 view->motion.x = x + view->scroll_x;
3033                 view->motion.y = y + view->scroll_y;
3034
3035                 /* Queue an idle to handle the motion.  We do this because
3036                  * handling any selection events in the motion could be slower
3037                  * than new motion events reach us.  We always put it in the
3038                  * idle to make sure we catch up and don't visibly lag the
3039                  * mouse. */
3040                 if (!view->selection_update_id)
3041                         view->selection_update_id = g_idle_add ((GSourceFunc)selection_update_idle_cb, view);
3042
3043                 return TRUE;
3044         } else if (view->pressed_button == 2) {
3045                 if (!view->drag_info.in_drag) {
3046                         gboolean start;
3047                         int i;
3048
3049                         start = gtk_drag_check_threshold (widget,
3050                                                           view->drag_info.start.x,
3051                                                           view->drag_info.start.y,
3052                                                           event->x_root,
3053                                                           event->y_root);
3054                         view->drag_info.in_drag = start;
3055                         view->drag_info.drag_timeout_id = g_timeout_add (10,
3056                                 (GSourceFunc)ev_view_drag_update_momentum, view);
3057                         /* Set 100 to choose how long it takes to build up momentum */
3058                         /* Clear out previous momentum info: */
3059                         for (i = 0; i < DRAG_HISTORY; i++) {
3060                                 view->drag_info.buffer[i].x = event->x;
3061                                 view->drag_info.buffer[i].y = event->y;
3062                         }
3063                         view->drag_info.momentum.x = 0;
3064                         view->drag_info.momentum.y = 0;
3065                 }
3066
3067                 if (view->drag_info.in_drag) {
3068                         int dx, dy;
3069                         gdouble dhadj_value, dvadj_value;
3070
3071                         view->drag_info.buffer[0].x = event->x;
3072                         view->drag_info.buffer[0].y = event->y;
3073
3074                         dx = event->x_root - view->drag_info.start.x;
3075                         dy = event->y_root - view->drag_info.start.y;
3076
3077                         dhadj_value = view->hadjustment->page_size *
3078                                       (gdouble)dx / widget->allocation.width;
3079                         dvadj_value = view->vadjustment->page_size *
3080                                       (gdouble)dy / widget->allocation.height;
3081
3082                         /* clamp scrolling to visible area */
3083                         gtk_adjustment_set_value (view->hadjustment,
3084                                                   MIN(view->drag_info.hadj - dhadj_value,
3085                                                       view->hadjustment->upper -
3086                                                       view->hadjustment->page_size));
3087                         gtk_adjustment_set_value (view->vadjustment,
3088                                                   MIN(view->drag_info.vadj - dvadj_value,
3089                                                       view->vadjustment->upper -
3090                                                       view->vadjustment->page_size));
3091
3092                         return TRUE;
3093                 }
3094         } else if (view->pressed_button <= 0) {
3095                 ev_view_handle_cursor_over_xy (view, x, y);
3096                 return TRUE;
3097         }
3098
3099         return FALSE;
3100 }
3101
3102 static gboolean
3103 ev_view_button_release_event (GtkWidget      *widget,
3104                               GdkEventButton *event)
3105 {
3106         EvView *view = EV_VIEW (widget);
3107         EvLink *link = NULL;
3108
3109         view->drag_info.in_drag = FALSE;
3110         view->image_dnd_info.in_drag = FALSE;
3111
3112         view->drag_info.release_timeout_id = g_timeout_add (20,
3113                         (GSourceFunc)ev_view_scroll_drag_release, view);
3114
3115         if (view->pressed_button == 2) {
3116                 ev_view_handle_cursor_over_xy (view, event->x, event->y);
3117         }
3118
3119         if (view->document && view->pressed_button != 3) {
3120                 link = ev_view_get_link_at_location (view, event->x, event->y);
3121         }
3122
3123         view->pressed_button = -1;
3124
3125         if (view->selection_scroll_id) {
3126             g_source_remove (view->selection_scroll_id);
3127             view->selection_scroll_id = 0;
3128         }
3129         if (view->selection_update_id) {
3130             g_source_remove (view->selection_update_id);
3131             view->selection_update_id = 0;
3132         }
3133
3134         if (!view->selection_info.in_selection &&
3135             view->selection_info.style != EV_SELECTION_STYLE_GLYPH) {
3136                 compute_selections (view,
3137                                     view->selection_info.style,
3138                                     &(view->selection_info.start),
3139                                     &(view->selection_info.start));
3140         }
3141
3142         if (view->selection_info.selections) {
3143                 ev_view_update_primary_selection (view);
3144
3145                 if (view->selection_info.in_drag) {
3146                         clear_selection (view);
3147                         gtk_widget_queue_draw (widget);
3148                 }
3149
3150                 view->selection_info.in_drag = FALSE;
3151         } else if (link) {
3152                 if (event->button == 2) {
3153                         EvLinkAction    *action;
3154                         EvLinkActionType type;
3155
3156                         action = ev_link_get_action (link);
3157                         if (!action)
3158                                 return FALSE;
3159
3160                         type = ev_link_action_get_action_type (action);
3161                         if (type == EV_LINK_ACTION_TYPE_GOTO_DEST) {
3162                                 g_signal_emit (view,
3163                                                signals[SIGNAL_EXTERNAL_LINK],
3164                                                0, action);
3165                         }
3166                 } else {
3167                         ev_view_handle_link (view, link);
3168                 }
3169         } else if (view->presentation) {
3170                 switch (event->button) {
3171                         case 1:
3172                                 ev_view_next_page (view);
3173                                 return TRUE;
3174                         case 3:
3175                                 ev_view_previous_page (view);
3176                                 return TRUE;
3177                 }
3178         }
3179
3180         return FALSE;
3181 }
3182
3183 /* Goto Window */
3184 /* Cut and paste from gtkwindow.c */
3185 static void
3186 send_focus_change (GtkWidget *widget,
3187                    gboolean   in)
3188 {
3189         GdkEvent *fevent = gdk_event_new (GDK_FOCUS_CHANGE);
3190
3191         g_object_ref (widget);
3192
3193         if (in)
3194                 GTK_WIDGET_SET_FLAGS (widget, GTK_HAS_FOCUS);
3195         else
3196                 GTK_WIDGET_UNSET_FLAGS (widget, GTK_HAS_FOCUS);
3197
3198         fevent->focus_change.type = GDK_FOCUS_CHANGE;
3199         fevent->focus_change.window = g_object_ref (widget->window);
3200         fevent->focus_change.in = in;
3201
3202         gtk_widget_event (widget, fevent);
3203
3204         g_object_notify (G_OBJECT (widget), "has-focus");
3205
3206         g_object_unref (widget);
3207         gdk_event_free (fevent);
3208 }
3209
3210 static void
3211 ev_view_goto_window_hide (EvView *view)
3212 {
3213         /* send focus-in event */
3214         send_focus_change (view->goto_entry, FALSE);
3215         gtk_widget_hide (view->goto_window);
3216         gtk_entry_set_text (GTK_ENTRY (view->goto_entry), "");
3217 }
3218
3219 static gboolean
3220 ev_view_goto_window_delete_event (GtkWidget   *widget,
3221                                   GdkEventAny *event,
3222                                   EvView      *view)
3223 {
3224         ev_view_goto_window_hide (view);
3225
3226         return TRUE;
3227 }
3228
3229 static gboolean
3230 key_is_numeric (guint keyval)
3231 {
3232         return ((keyval >= GDK_0 && keyval <= GDK_9) ||
3233                 (keyval >= GDK_KP_0 && keyval <= GDK_KP_9));
3234 }
3235
3236 static gboolean
3237 ev_view_goto_window_key_press_event (GtkWidget   *widget,
3238                                      GdkEventKey *event,
3239                                      EvView      *view)
3240 {
3241         switch (event->keyval) {
3242                 case GDK_Escape:
3243                 case GDK_Tab:
3244                 case GDK_KP_Tab:
3245                 case GDK_ISO_Left_Tab:
3246                         ev_view_goto_window_hide (view);
3247                         return TRUE;
3248                 case GDK_Return:
3249                 case GDK_KP_Enter:
3250                 case GDK_ISO_Enter:
3251                 case GDK_BackSpace:
3252                 case GDK_Delete:
3253                         return FALSE;
3254                 default:
3255                         if (!key_is_numeric (event->keyval))
3256                                 return TRUE;
3257         }
3258
3259         return FALSE;
3260 }
3261
3262 static gboolean
3263 ev_view_goto_window_button_press_event (GtkWidget      *widget,
3264                                         GdkEventButton *event,
3265                                         EvView         *view)
3266 {
3267         ev_view_goto_window_hide (view);
3268
3269         return TRUE;
3270 }
3271
3272 static void
3273 ev_view_goto_entry_activate (GtkEntry *entry,
3274                              EvView   *view)
3275 {
3276         const gchar *text;
3277         gint         page;
3278
3279         text = gtk_entry_get_text (entry);
3280         page = atoi (text) - 1;
3281
3282         ev_view_goto_window_hide (view);
3283
3284         if (page >= 0 &&
3285             page < ev_page_cache_get_n_pages (view->page_cache))
3286                 ev_page_cache_set_current_page (view->page_cache, page);
3287 }
3288
3289 static void
3290 ev_view_goto_window_create (EvView *view)
3291 {
3292         GtkWidget *frame, *hbox, *toplevel, *label;
3293
3294         toplevel = gtk_widget_get_toplevel (GTK_WIDGET (view));
3295
3296         if (view->goto_window) {
3297                 if (GTK_WINDOW (toplevel)->group)
3298                         gtk_window_group_add_window (GTK_WINDOW (toplevel)->group,
3299                                                      GTK_WINDOW (view->goto_window));
3300                 else if (GTK_WINDOW (view->goto_window)->group)
3301                         gtk_window_group_remove_window (GTK_WINDOW (view->goto_window)->group,
3302                                                         GTK_WINDOW (view->goto_window));
3303                 return;
3304         }
3305
3306         view->goto_window = gtk_window_new (GTK_WINDOW_POPUP);
3307
3308         if (GTK_WINDOW (toplevel)->group)
3309                 gtk_window_group_add_window (GTK_WINDOW (toplevel)->group,
3310                                              GTK_WINDOW (view->goto_window));
3311
3312         gtk_window_set_modal (GTK_WINDOW (view->goto_window), TRUE);
3313
3314         g_signal_connect (view->goto_window, "delete_event",
3315                           G_CALLBACK (ev_view_goto_window_delete_event),
3316                           view);
3317         g_signal_connect (view->goto_window, "key_press_event",
3318                           G_CALLBACK (ev_view_goto_window_key_press_event),
3319                           view);
3320         g_signal_connect (view->goto_window, "button_press_event",
3321                           G_CALLBACK (ev_view_goto_window_button_press_event),
3322                           view);
3323
3324         frame = gtk_frame_new (NULL);
3325         gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_ETCHED_IN);
3326         gtk_container_add (GTK_CONTAINER (view->goto_window), frame);
3327         gtk_widget_show (frame);
3328
3329         hbox = gtk_hbox_new (FALSE, 0);
3330         gtk_container_set_border_width (GTK_CONTAINER (hbox), 3);
3331         gtk_container_add (GTK_CONTAINER (frame), hbox);
3332         gtk_widget_show (hbox);
3333
3334         label = gtk_label_new(_("Jump to page:"));
3335         gtk_box_pack_start (GTK_BOX (hbox), label, TRUE, TRUE, 3);
3336         gtk_widget_show (label);
3337         gtk_widget_realize (label);
3338
3339         view->goto_entry = gtk_entry_new ();
3340         g_signal_connect (view->goto_entry, "activate",
3341                           G_CALLBACK (ev_view_goto_entry_activate),
3342                           view);
3343         gtk_box_pack_start_defaults (GTK_BOX (hbox), view->goto_entry);
3344         gtk_widget_show (view->goto_entry);
3345         gtk_widget_realize (view->goto_entry);
3346 }
3347
3348 static void
3349 ev_view_goto_entry_grab_focus (EvView *view)
3350 {
3351         GtkWidgetClass *entry_parent_class;
3352
3353         entry_parent_class = g_type_class_peek_parent (GTK_ENTRY_GET_CLASS (view->goto_entry));
3354         (entry_parent_class->grab_focus) (view->goto_entry);
3355
3356         send_focus_change (view->goto_entry, TRUE);
3357 }
3358
3359 static void
3360 ev_view_goto_window_send_key_event (EvView   *view,
3361                                     GdkEvent *event)
3362 {
3363         GdkEventKey *new_event;
3364         GdkScreen   *screen;
3365
3366         /* Move goto window off screen */
3367         screen = gtk_widget_get_screen (GTK_WIDGET (view));
3368         gtk_window_move (GTK_WINDOW (view->goto_window),
3369                          gdk_screen_get_width (screen) + 1,
3370                          gdk_screen_get_height (screen) + 1);
3371         gtk_widget_show (view->goto_window);
3372
3373         new_event = (GdkEventKey *) gdk_event_copy (event);
3374         g_object_unref (new_event->window);
3375         new_event->window = g_object_ref (view->goto_window->window);
3376         gtk_widget_realize (view->goto_window);
3377
3378         gtk_widget_event (view->goto_window, (GdkEvent *)new_event);
3379         gdk_event_free ((GdkEvent *)new_event);
3380         gtk_widget_hide (view->goto_window);
3381 }
3382
3383 static gboolean
3384 ev_view_key_press_event (GtkWidget   *widget,
3385                          GdkEventKey *event)
3386 {
3387         EvView *view = EV_VIEW (widget);
3388         EvPresentationState current;
3389
3390         if (!view->document)
3391                 return FALSE;
3392
3393         if (!view->presentation ||
3394             view->presentation_state == EV_PRESENTATION_END)
3395                 return gtk_bindings_activate_event (GTK_OBJECT (widget), event);
3396
3397
3398         current = view->presentation_state;
3399
3400         switch (event->keyval) {
3401                 case GDK_b:
3402                 case GDK_B:
3403                         view->presentation_state =
3404                                 (view->presentation_state == EV_PRESENTATION_BLACK) ?
3405                                 EV_PRESENTATION_NORMAL : EV_PRESENTATION_BLACK;
3406                         break;
3407                 case GDK_w:
3408                 case GDK_W:
3409                         view->presentation_state =
3410                                 (view->presentation_state == EV_PRESENTATION_WHITE) ?
3411                                 EV_PRESENTATION_NORMAL : EV_PRESENTATION_WHITE;
3412                         break;
3413                 default:
3414                         if (view->presentation_state == EV_PRESENTATION_BLACK ||
3415                             view->presentation_state == EV_PRESENTATION_WHITE) {
3416                                 view->presentation_state = EV_PRESENTATION_NORMAL;
3417                         }
3418         }
3419
3420         if (current == view->presentation_state) {
3421                 if (ev_page_cache_get_n_pages (view->page_cache) > 1 &&
3422                     key_is_numeric (event->keyval)) {
3423                         gint x, y;
3424
3425                         ev_view_goto_window_create (view);
3426                         ev_view_goto_window_send_key_event (view, (GdkEvent *)event);
3427                         gtk_widget_get_pointer (GTK_WIDGET (view), &x, &y);
3428                         gtk_window_move (GTK_WINDOW (view->goto_window), x, y);
3429                         gtk_widget_show (view->goto_window);
3430                         ev_view_goto_entry_grab_focus (view);
3431
3432                         return TRUE;
3433                 }
3434
3435                 return gtk_bindings_activate_event (GTK_OBJECT (widget), event);
3436         }
3437
3438         switch (view->presentation_state) {
3439                 case EV_PRESENTATION_NORMAL:
3440                 case EV_PRESENTATION_BLACK:
3441                         gdk_window_set_background (view->layout.bin_window,
3442                                                    &widget->style->black);
3443                         break;
3444                 case EV_PRESENTATION_WHITE:
3445                         gdk_window_set_background (view->layout.bin_window,
3446                                                    &widget->style->white);
3447                         break;
3448                 default:
3449                         return gtk_bindings_activate_event (GTK_OBJECT (widget), event);
3450         }
3451
3452         gtk_widget_queue_draw (widget);
3453         return TRUE;
3454 }
3455
3456 static gint
3457 ev_view_focus_in (GtkWidget     *widget,
3458                   GdkEventFocus *event)
3459 {
3460         if (EV_VIEW (widget)->pixbuf_cache)
3461                 ev_pixbuf_cache_style_changed (EV_VIEW (widget)->pixbuf_cache);
3462         gtk_widget_queue_draw (widget);
3463
3464         return FALSE;
3465 }
3466
3467 static gint
3468 ev_view_focus_out (GtkWidget     *widget,
3469                      GdkEventFocus *event)
3470 {
3471         if (EV_VIEW (widget)->goto_window)
3472                 ev_view_goto_window_hide (EV_VIEW (widget));
3473
3474         if (EV_VIEW (widget)->pixbuf_cache)
3475                 ev_pixbuf_cache_style_changed (EV_VIEW (widget)->pixbuf_cache);
3476         gtk_widget_queue_draw (widget);
3477
3478         return FALSE;
3479 }
3480
3481 static gboolean
3482 ev_view_leave_notify_event (GtkWidget *widget, GdkEventCrossing   *event)
3483 {
3484         EvView *view = EV_VIEW (widget);
3485
3486         if (view->cursor != EV_VIEW_CURSOR_NORMAL)
3487                 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
3488
3489 #if !GTK_CHECK_VERSION (2, 11, 7)
3490         if (view->link_tooltip) {
3491                 view->hovered_link = NULL;
3492                 ev_tooltip_deactivate (EV_TOOLTIP (view->link_tooltip));
3493         }
3494 #endif
3495
3496         return FALSE;
3497 }
3498
3499 static gboolean
3500 ev_view_enter_notify_event (GtkWidget *widget, GdkEventCrossing   *event)
3501 {
3502         EvView *view = EV_VIEW (widget);
3503
3504         ev_view_handle_cursor_over_xy (view, event->x, event->y);
3505
3506         return FALSE;
3507 }
3508
3509 static void
3510 ev_view_style_set (GtkWidget *widget,
3511                    GtkStyle  *old_style)
3512 {
3513         if (EV_VIEW (widget)->pixbuf_cache)
3514                 ev_pixbuf_cache_style_changed (EV_VIEW (widget)->pixbuf_cache);
3515
3516         GTK_WIDGET_CLASS (ev_view_parent_class)->style_set (widget, old_style);
3517 }
3518
3519 /*** Drawing ***/
3520
3521 static guint32
3522 ev_gdk_color_to_rgb (const GdkColor *color)
3523 {
3524   guint32 result;
3525   result = (0xff0000 | (color->red & 0xff00));
3526   result <<= 8;
3527   result |= ((color->green & 0xff00) | (color->blue >> 8));
3528   return result;
3529 }
3530
3531 static void
3532 draw_rubberband (GtkWidget *widget, GdkWindow *window,
3533                  const GdkRectangle *rect, guchar alpha)
3534 {
3535         GdkGC *gc;
3536         GdkPixbuf *pixbuf;
3537         GdkColor *fill_color_gdk;
3538         guint fill_color;
3539
3540         fill_color_gdk = gdk_color_copy (&GTK_WIDGET (widget)->style->base[GTK_STATE_SELECTED]);
3541         fill_color = ev_gdk_color_to_rgb (fill_color_gdk) << 8 | alpha;
3542
3543         pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8,
3544                                  rect->width, rect->height);
3545         gdk_pixbuf_fill (pixbuf, fill_color);
3546
3547         gdk_draw_pixbuf (window, NULL, pixbuf,
3548                          0, 0,
3549                          rect->x - EV_VIEW (widget)->scroll_x, rect->y - EV_VIEW (widget)->scroll_y,
3550                          rect->width, rect->height,
3551                          GDK_RGB_DITHER_NONE,
3552                          0, 0);
3553
3554         g_object_unref (pixbuf);
3555
3556         gc = gdk_gc_new (window);
3557         gdk_gc_set_rgb_fg_color (gc, fill_color_gdk);
3558         gdk_draw_rectangle (window, gc, FALSE,
3559                             rect->x - EV_VIEW (widget)->scroll_x, rect->y - EV_VIEW (widget)->scroll_y,
3560                             rect->width - 1,
3561                             rect->height - 1);
3562         g_object_unref (gc);
3563
3564         gdk_color_free (fill_color_gdk);
3565 }
3566
3567
3568 static void
3569 highlight_find_results (EvView *view, int page)
3570 {
3571         EvDocumentFind *find;
3572         int i, results = 0;
3573
3574         find = EV_DOCUMENT_FIND (view->document);
3575
3576         results = ev_document_find_get_n_results (find, page);
3577
3578         for (i = 0; i < results; i++) {
3579                 EvRectangle rectangle;
3580                 GdkRectangle view_rectangle;
3581                 guchar alpha;
3582
3583                 if (i == view->find_result && page == view->current_page) {
3584                         alpha = 0x90;
3585                 } else {
3586                         alpha = 0x20;
3587                 }
3588
3589                 ev_document_find_get_result (find, page, i, &rectangle);
3590                 doc_rect_to_view_rect (view, page, &rectangle, &view_rectangle);
3591                 draw_rubberband (GTK_WIDGET (view), view->layout.bin_window,
3592                                  &view_rectangle, alpha);
3593         }
3594 }
3595
3596 static void
3597 draw_loading_text (EvView       *view,
3598                    GdkRectangle *page_area,
3599                    GdkRectangle *expose_area)
3600 {
3601         cairo_t *cr;
3602         gint     width, height;
3603
3604         /* Don't annoy users with loading messages during presentations.
3605          * FIXME: Temporary "workaround" for
3606          * http://bugzilla.gnome.org/show_bug.cgi?id=320352 */
3607         if (view->presentation)
3608                 return;
3609
3610         if (!view->loading_text) {
3611                 const gchar *loading_text = _("Loading...");
3612                 PangoLayout *layout;
3613                 PangoFontDescription *font_desc;
3614                 PangoRectangle logical_rect;
3615                 gint target_width;
3616                 gdouble real_scale;
3617
3618                 ev_document_fc_mutex_lock ();
3619
3620                 layout = gtk_widget_create_pango_layout (GTK_WIDGET (view), loading_text);
3621
3622                 font_desc = pango_font_description_new ();
3623
3624                 /* We set the font to be 10 points, get the size, and scale appropriately */
3625                 pango_font_description_set_size (font_desc, 10 * PANGO_SCALE);
3626                 pango_layout_set_font_description (layout, font_desc);
3627                 pango_layout_get_pixel_extents (layout, NULL, &logical_rect);
3628
3629                 target_width = MAX (page_area->width / 2, 1);
3630                 real_scale = ((double)target_width / (double) logical_rect.width) * (PANGO_SCALE * 10);
3631                 pango_font_description_set_size (font_desc, (int)real_scale);
3632                 pango_layout_set_font_description (layout, font_desc);
3633                 pango_layout_get_pixel_extents (layout, NULL, &logical_rect);
3634
3635                 view->loading_text = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
3636                                                                  logical_rect.width,
3637                                                                  logical_rect.height);
3638                 cr = cairo_create (view->loading_text);
3639                 cairo_set_source_rgb (cr,
3640                                       155 / (double)255,
3641                                       155 / (double)255,
3642                                       155 / (double)255);
3643                 pango_cairo_show_layout (cr, layout);
3644                 cairo_destroy (cr);
3645
3646                 pango_font_description_free (font_desc);
3647                 g_object_unref (layout);
3648
3649                 ev_document_fc_mutex_unlock ();
3650         }
3651
3652         width = (page_area->width - cairo_image_surface_get_width (view->loading_text)) / 2;
3653         height = (page_area->height - cairo_image_surface_get_height (view->loading_text)) / 2;
3654
3655         cr = gdk_cairo_create (view->layout.bin_window);
3656         cairo_translate (cr,
3657                          page_area->x + width,
3658                          page_area->y + height);
3659         cairo_set_source_surface (cr, view->loading_text, 0, 0);
3660         cairo_paint (cr);
3661         cairo_destroy (cr);
3662 }
3663
3664 static void
3665 draw_one_page (EvView       *view,
3666                gint          page,
3667                cairo_t      *cr,
3668                GdkRectangle *page_area,
3669                GtkBorder    *border,
3670                GdkRectangle *expose_area,
3671                gboolean     *page_ready)
3672 {
3673         GdkRectangle overlap;
3674         GdkRectangle real_page_area;
3675
3676         g_assert (view->document);
3677
3678         if (! gdk_rectangle_intersect (page_area, expose_area, &overlap))
3679                 return;
3680
3681         /* Render the document itself */
3682         real_page_area = *page_area;
3683
3684         real_page_area.x += border->left;
3685         real_page_area.y += border->top;
3686         real_page_area.width -= (border->left + border->right);
3687         real_page_area.height -= (border->top + border->bottom);
3688         *page_ready = TRUE;
3689
3690         if (!view->presentation) {
3691                 gint current_page;
3692
3693                 current_page = ev_page_cache_get_current_page (view->page_cache);
3694                 ev_document_misc_paint_one_page (view->layout.bin_window,
3695                                                  GTK_WIDGET (view),
3696                                                  page_area, border,
3697                                                  page == current_page);
3698         }
3699
3700         if (gdk_rectangle_intersect (&real_page_area, expose_area, &overlap)) {
3701                 gint             width, height;
3702                 gint             page_width, page_height;
3703                 cairo_surface_t *page_surface = NULL;
3704                 gint             selection_width, selection_height;
3705                 cairo_surface_t *selection_surface = NULL;
3706
3707                 page_surface = ev_pixbuf_cache_get_surface (view->pixbuf_cache, page);
3708
3709                 if (!page_surface) {
3710                         draw_loading_text (view,
3711                                            &real_page_area,
3712                                            expose_area);
3713                         *page_ready = FALSE;
3714
3715                         return;
3716                 }
3717
3718                 ev_page_cache_get_size (view->page_cache,
3719                                         page, view->rotation,
3720                                         view->scale,
3721                                         &width, &height);
3722
3723                 page_width = cairo_image_surface_get_width (page_surface);
3724                 page_height = cairo_image_surface_get_height (page_surface);
3725
3726                 cairo_save (cr);
3727                 cairo_translate (cr, overlap.x, overlap.y);
3728
3729                 if (width != page_width || height != page_height) {
3730                         cairo_pattern_set_filter (cairo_get_source (cr),
3731                                                   CAIRO_FILTER_FAST);
3732                         cairo_scale (cr,
3733                                      (gdouble)width / page_width,
3734                                      (gdouble)height / page_height);
3735                 }
3736
3737                 cairo_surface_set_device_offset (page_surface,
3738                                                  overlap.x - real_page_area.x,
3739                                                  overlap.y - real_page_area.y);
3740                 cairo_set_source_surface (cr, page_surface, 0, 0);
3741                 cairo_paint (cr);
3742                 cairo_restore (cr);
3743
3744                 /* Get the selection pixbuf iff we have something to draw */
3745                 if (find_selection_for_page (view, page) &&
3746                     view->selection_mode == EV_VIEW_SELECTION_TEXT) {
3747                         selection_surface =
3748                                 ev_pixbuf_cache_get_selection_surface (view->pixbuf_cache,
3749                                                                        page,
3750                                                                        view->scale,
3751                                                                        NULL);
3752                 }
3753
3754                 if (!selection_surface) {
3755                         return;
3756                 }
3757
3758                 selection_width = cairo_image_surface_get_width (selection_surface);
3759                 selection_height = cairo_image_surface_get_height (selection_surface);
3760
3761                 cairo_save (cr);
3762                 cairo_translate (cr, overlap.x, overlap.y);
3763
3764                 if (width != selection_width || height != selection_height) {
3765                         cairo_pattern_set_filter (cairo_get_source (cr),
3766                                                   CAIRO_FILTER_FAST);
3767                         cairo_scale (cr,
3768                                      (gdouble)width / selection_width,
3769                                      (gdouble)height / selection_height);
3770                 }
3771
3772                 cairo_surface_set_device_offset (selection_surface,
3773                                                  overlap.x - real_page_area.x,
3774                                                  overlap.y - real_page_area.y);
3775                 cairo_set_source_surface (cr, selection_surface, 0, 0);
3776                 cairo_paint (cr);
3777                 cairo_restore (cr);
3778         }
3779 }
3780
3781 /*** GObject functions ***/
3782
3783 static void
3784 ev_view_finalize (GObject *object)
3785 {
3786         EvView *view = EV_VIEW (object);
3787
3788         g_free (view->find_status);
3789
3790         clear_selection (view);
3791
3792         if (view->image_dnd_info.image)
3793                 g_object_unref (view->image_dnd_info.image);
3794         view->image_dnd_info.image = NULL;
3795
3796         G_OBJECT_CLASS (ev_view_parent_class)->finalize (object);
3797 }
3798
3799 static void
3800 ev_view_destroy (GtkObject *object)
3801 {
3802         EvView *view = EV_VIEW (object);
3803
3804         if (view->document) {
3805                 g_object_unref (view->document);
3806                 view->document = NULL;
3807         }
3808
3809         if (view->pixbuf_cache) {
3810                 g_object_unref (view->pixbuf_cache);
3811                 view->pixbuf_cache = NULL;
3812         }
3813
3814 #if !GTK_CHECK_VERSION (2, 11, 7)
3815         if (view->link_tooltip) {
3816                 gtk_widget_destroy (view->link_tooltip);
3817                 view->link_tooltip = NULL;
3818         }
3819 #endif
3820         if (view->goto_window) {
3821                 gtk_widget_destroy (view->goto_window);
3822                 view->goto_window = NULL;
3823                 view->goto_entry = NULL;
3824         }
3825
3826         if (view->selection_scroll_id) {
3827             g_source_remove (view->selection_scroll_id);
3828             view->selection_scroll_id = 0;
3829         }
3830
3831         if (view->selection_update_id) {
3832             g_source_remove (view->selection_update_id);
3833             view->selection_update_id = 0;
3834         }
3835
3836         if (view->loading_text) {
3837                 cairo_surface_destroy (view->loading_text);
3838                 view->loading_text = NULL;
3839         }
3840
3841         if (view->scroll_info.timeout_id) {
3842             g_source_remove (view->scroll_info.timeout_id);
3843             view->scroll_info.timeout_id = 0;
3844         }
3845
3846         if (view->drag_info.drag_timeout_id) {
3847                 g_source_remove (view->drag_info.drag_timeout_id);
3848                 view->drag_info.drag_timeout_id = 0;
3849         }
3850
3851         if (view->drag_info.release_timeout_id) {
3852                 g_source_remove (view->drag_info.release_timeout_id);
3853                 view->drag_info.release_timeout_id = 0;
3854         }
3855
3856         ev_view_presentation_transition_stop (view);
3857
3858         ev_view_set_scroll_adjustments (GTK_LAYOUT (view), NULL, NULL);
3859
3860         GTK_OBJECT_CLASS (ev_view_parent_class)->destroy (object);
3861 }
3862
3863 static void
3864 ev_view_set_property (GObject      *object,
3865                       guint         prop_id,
3866                       const GValue *value,
3867                       GParamSpec   *pspec)
3868 {
3869         EvView *view = EV_VIEW (object);
3870
3871         switch (prop_id) {
3872                 case PROP_CONTINUOUS:
3873                         ev_view_set_continuous (view, g_value_get_boolean (value));
3874                         break;
3875                 case PROP_DUAL_PAGE:
3876                         ev_view_set_dual_page (view, g_value_get_boolean (value));
3877                         break;
3878                 case PROP_FULLSCREEN:
3879                         ev_view_set_fullscreen (view, g_value_get_boolean (value));
3880                         break;
3881                 case PROP_PRESENTATION:
3882                         ev_view_set_presentation (view, g_value_get_boolean (value));
3883                         break;
3884                 case PROP_SIZING_MODE:
3885                         ev_view_set_sizing_mode (view, g_value_get_enum (value));
3886                         break;
3887                 case PROP_ZOOM:
3888                         ev_view_set_zoom (view, g_value_get_double (value), FALSE);
3889                         break;
3890                 case PROP_ROTATION:
3891                         ev_view_set_rotation (view, g_value_get_int (value));
3892                         break;
3893                 default:
3894                         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
3895         }
3896 }
3897
3898 static AtkObject *
3899 ev_view_get_accessible (GtkWidget *widget)
3900 {
3901         static gboolean first_time = TRUE;
3902
3903         if (first_time) {
3904                 AtkObjectFactory *factory;
3905                 AtkRegistry *registry;
3906                 GType derived_type;
3907                 GType derived_atk_type;
3908
3909                 /*
3910                  * Figure out whether accessibility is enabled by looking at the
3911                  * type of the accessible object which would be created for
3912                  * the parent type of EvView.
3913                  */
3914                 derived_type = g_type_parent (EV_TYPE_VIEW);
3915
3916                 registry = atk_get_default_registry ();
3917                 factory = atk_registry_get_factory (registry,
3918                                                     derived_type);
3919                 derived_atk_type = atk_object_factory_get_accessible_type (factory);
3920                 if (g_type_is_a (derived_atk_type, GTK_TYPE_ACCESSIBLE))
3921                         atk_registry_set_factory_type (registry,
3922                                                        EV_TYPE_VIEW,
3923                                                        ev_view_accessible_factory_get_type ());
3924                 first_time = FALSE;
3925         }
3926         return GTK_WIDGET_CLASS (ev_view_parent_class)->get_accessible (widget);
3927 }
3928
3929 static void
3930 ev_view_get_property (GObject *object,
3931                       guint prop_id,
3932                       GValue *value,
3933                       GParamSpec *pspec)
3934 {
3935         EvView *view = EV_VIEW (object);
3936
3937         switch (prop_id) {
3938                 case PROP_FIND_STATUS:
3939                         g_value_set_string (value, view->find_status);
3940                         break;
3941                 case PROP_CONTINUOUS:
3942                         g_value_set_boolean (value, view->continuous);
3943                         break;
3944                 case PROP_DUAL_PAGE:
3945                         g_value_set_boolean (value, view->dual_page);
3946                         break;
3947                 case PROP_FULLSCREEN:
3948                         g_value_set_boolean (value, view->fullscreen);
3949                         break;
3950                 case PROP_PRESENTATION:
3951                         g_value_set_boolean (value, view->presentation);
3952                         break;
3953                 case PROP_SIZING_MODE:
3954                         g_value_set_enum (value, view->sizing_mode);
3955                         break;
3956                 case PROP_ZOOM:
3957                         g_value_set_double (value, view->scale);
3958                         break;
3959                 case PROP_ROTATION:
3960                         g_value_set_int (value, view->rotation);
3961                         break;
3962                 case PROP_HAS_SELECTION:
3963                         g_value_set_boolean (value,
3964                                              view->selection_info.selections != NULL);
3965                         break;
3966                 default:
3967                         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
3968         }
3969 }
3970
3971 static void
3972 ev_view_class_init (EvViewClass *class)
3973 {
3974         GObjectClass *object_class = G_OBJECT_CLASS (class);
3975         GtkObjectClass *gtk_object_class = GTK_OBJECT_CLASS (class);
3976         GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
3977         GtkLayoutClass *layout_class = GTK_LAYOUT_CLASS (class);
3978         GtkBindingSet *binding_set;
3979
3980         object_class->finalize = ev_view_finalize;
3981         object_class->set_property = ev_view_set_property;
3982         object_class->get_property = ev_view_get_property;
3983
3984         widget_class->expose_event = ev_view_expose_event;
3985         widget_class->button_press_event = ev_view_button_press_event;
3986         widget_class->motion_notify_event = ev_view_motion_notify_event;
3987         widget_class->button_release_event = ev_view_button_release_event;
3988         widget_class->key_press_event = ev_view_key_press_event;
3989         widget_class->focus_in_event = ev_view_focus_in;
3990         widget_class->focus_out_event = ev_view_focus_out;
3991         widget_class->get_accessible = ev_view_get_accessible;
3992         widget_class->size_request = ev_view_size_request;
3993         widget_class->size_allocate = ev_view_size_allocate;
3994         widget_class->realize = ev_view_realize;
3995         widget_class->scroll_event = ev_view_scroll_event;
3996         widget_class->enter_notify_event = ev_view_enter_notify_event;
3997         widget_class->leave_notify_event = ev_view_leave_notify_event;
3998         widget_class->style_set = ev_view_style_set;
3999         widget_class->drag_data_get = ev_view_drag_data_get;
4000         widget_class->drag_motion = ev_view_drag_motion;
4001         widget_class->drag_data_received = ev_view_drag_data_received;
4002         widget_class->popup_menu = ev_view_popup_menu;
4003 #if GTK_CHECK_VERSION (2, 11, 7)
4004         widget_class->query_tooltip = ev_view_query_tooltip;
4005 #endif
4006
4007         gtk_object_class->destroy = ev_view_destroy;
4008
4009         layout_class->set_scroll_adjustments = ev_view_set_scroll_adjustments;
4010
4011         class->binding_activated = ev_view_scroll;
4012
4013         signals[SIGNAL_BINDING_ACTIVATED] = g_signal_new ("binding_activated",
4014                          G_TYPE_FROM_CLASS (object_class),
4015                          G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
4016                          G_STRUCT_OFFSET (EvViewClass, binding_activated),
4017                          NULL, NULL,
4018                          ev_marshal_VOID__ENUM_BOOLEAN,
4019                          G_TYPE_NONE, 2,
4020                          GTK_TYPE_SCROLL_TYPE,
4021                          G_TYPE_BOOLEAN);
4022
4023         signals[SIGNAL_ZOOM_INVALID] = g_signal_new ("zoom-invalid",
4024                          G_TYPE_FROM_CLASS (object_class),
4025                          G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
4026                          G_STRUCT_OFFSET (EvViewClass, zoom_invalid),
4027                          NULL, NULL,
4028                          ev_marshal_VOID__VOID,
4029                          G_TYPE_NONE, 0, G_TYPE_NONE);
4030         signals[SIGNAL_HANDLE_LINK] = g_signal_new ("handle-link",
4031                          G_TYPE_FROM_CLASS (object_class),
4032                          G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
4033                          G_STRUCT_OFFSET (EvViewClass, handle_link),
4034                          NULL, NULL,
4035                          g_cclosure_marshal_VOID__OBJECT,
4036                          G_TYPE_NONE, 1,
4037                          G_TYPE_OBJECT);
4038         signals[SIGNAL_EXTERNAL_LINK] = g_signal_new ("external-link",
4039                          G_TYPE_FROM_CLASS (object_class),
4040                          G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
4041                          G_STRUCT_OFFSET (EvViewClass, external_link),
4042                          NULL, NULL,
4043                          g_cclosure_marshal_VOID__OBJECT,
4044                          G_TYPE_NONE, 1,
4045                          G_TYPE_OBJECT);
4046         signals[SIGNAL_POPUP_MENU] = g_signal_new ("popup",
4047                          G_TYPE_FROM_CLASS (object_class),
4048                          G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
4049                          G_STRUCT_OFFSET (EvViewClass, popup_menu),
4050                          NULL, NULL,
4051                          g_cclosure_marshal_VOID__OBJECT,
4052                          G_TYPE_NONE, 1,
4053                          G_TYPE_OBJECT);
4054
4055
4056         g_object_class_install_property (object_class,
4057                                          PROP_FIND_STATUS,
4058                                          g_param_spec_string ("find-status",
4059                                                               "Find Status Message",
4060                                                               "The find status message",
4061                                                               NULL,
4062                                                               G_PARAM_READABLE));
4063
4064         g_object_class_install_property (object_class,
4065                                          PROP_CONTINUOUS,
4066                                          g_param_spec_boolean ("continuous",
4067                                                                "Continuous",
4068                                                                "Continuous scrolling mode",
4069                                                                TRUE,
4070                                                                G_PARAM_READWRITE));
4071
4072         g_object_class_install_property (object_class,
4073                                          PROP_DUAL_PAGE,
4074                                          g_param_spec_boolean ("dual-page",
4075                                                                "Dual Page",
4076                                                                "Two pages visible at once",
4077                                                                FALSE,
4078                                                                G_PARAM_READWRITE));
4079         g_object_class_install_property (object_class,
4080                                          PROP_FULLSCREEN,
4081                                          g_param_spec_boolean ("fullscreen",
4082                                                                "Full Screen",
4083                                                                "Draw page in a fullscreen fashion",
4084                                                                FALSE,
4085                                                                G_PARAM_READWRITE));
4086         g_object_class_install_property (object_class,
4087                                          PROP_PRESENTATION,
4088                                          g_param_spec_boolean ("presentation",
4089                                                                "Presentation",
4090                                                                "Draw page in presentation mode",
4091                                                                TRUE,
4092                                                                G_PARAM_READWRITE));
4093
4094         g_object_class_install_property (object_class,
4095                                          PROP_SIZING_MODE,
4096                                          g_param_spec_enum ("sizing-mode",
4097                                                             "Sizing Mode",
4098                                                             "Sizing Mode",
4099                                                             EV_TYPE_SIZING_MODE,
4100                                                             EV_SIZING_FIT_WIDTH,
4101                                                             G_PARAM_READWRITE));
4102
4103         g_object_class_install_property (object_class,
4104                                          PROP_ZOOM,
4105                                          g_param_spec_double ("zoom",
4106                                                               "Zoom factor",
4107                                                               "Zoom factor",
4108                                                               0,
4109                                                               G_MAXDOUBLE,
4110                                                               1.0,
4111                                                               G_PARAM_READWRITE));
4112         g_object_class_install_property (object_class,
4113                                          PROP_ROTATION,
4114                                          g_param_spec_double ("rotation",
4115                                                               "Rotation",
4116                                                               "Rotation",
4117                                                               0,
4118                                                               360,
4119                                                               0,
4120                                                               G_PARAM_READWRITE));
4121         g_object_class_install_property (object_class,
4122                                          PROP_HAS_SELECTION,
4123                                          g_param_spec_boolean ("has-selection",
4124                                                                "Has selection",
4125                                                                "The view has selections",
4126                                                                FALSE,
4127                                                                G_PARAM_READABLE));
4128
4129         binding_set = gtk_binding_set_by_class (class);
4130
4131         add_scroll_binding_keypad (binding_set, GDK_Left,  0, EV_SCROLL_STEP_BACKWARD, TRUE);
4132         add_scroll_binding_keypad (binding_set, GDK_Right, 0, EV_SCROLL_STEP_FORWARD,  TRUE);
4133         add_scroll_binding_keypad (binding_set, GDK_Left,  GDK_MOD1_MASK, EV_SCROLL_STEP_DOWN, TRUE);
4134         add_scroll_binding_keypad (binding_set, GDK_Right, GDK_MOD1_MASK, EV_SCROLL_STEP_UP,  TRUE);
4135         add_scroll_binding_keypad (binding_set, GDK_Up,    0, EV_SCROLL_STEP_BACKWARD, FALSE);
4136         add_scroll_binding_keypad (binding_set, GDK_Down,  0, EV_SCROLL_STEP_FORWARD,  FALSE);
4137         add_scroll_binding_keypad (binding_set, GDK_Up,    GDK_MOD1_MASK, EV_SCROLL_STEP_DOWN, FALSE);
4138         add_scroll_binding_keypad (binding_set, GDK_Down,  GDK_MOD1_MASK, EV_SCROLL_STEP_UP,  FALSE);
4139         gtk_binding_entry_add_signal (binding_set, GDK_H, 0, "binding_activated", 2, EV_TYPE_SCROLL_TYPE,
4140                                       EV_SCROLL_STEP_BACKWARD, G_TYPE_BOOLEAN, TRUE);
4141         gtk_binding_entry_add_signal (binding_set, GDK_J, 0, "binding_activated", 2, EV_TYPE_SCROLL_TYPE,
4142                                       EV_SCROLL_STEP_FORWARD, G_TYPE_BOOLEAN, FALSE);
4143         gtk_binding_entry_add_signal (binding_set, GDK_K, 0, "binding_activated", 2, EV_TYPE_SCROLL_TYPE,
4144                                       EV_SCROLL_STEP_BACKWARD, G_TYPE_BOOLEAN, FALSE);
4145         gtk_binding_entry_add_signal (binding_set, GDK_L, 0, "binding_activated", 2, EV_TYPE_SCROLL_TYPE,
4146                                       EV_SCROLL_STEP_FORWARD, G_TYPE_BOOLEAN, TRUE);
4147
4148 }
4149
4150 static void
4151 ev_view_init (EvView *view)
4152 {
4153         GTK_WIDGET_SET_FLAGS (view, GTK_CAN_FOCUS);
4154
4155         view->spacing = 5;
4156         view->scale = 1.0;
4157         view->current_page = 0;
4158         view->pressed_button = -1;
4159         view->cursor = EV_VIEW_CURSOR_NORMAL;
4160         view->drag_info.in_drag = FALSE;
4161         view->scroll_info.autoscrolling = FALSE;
4162         view->selection_info.selections = NULL;
4163         view->selection_info.in_selection = FALSE;
4164         view->selection_info.in_drag = FALSE;
4165         view->selection_mode = EV_VIEW_SELECTION_TEXT;
4166         view->continuous = TRUE;
4167         view->dual_page = FALSE;
4168         view->presentation = FALSE;
4169         view->presentation_state = EV_PRESENTATION_NORMAL;
4170         view->fullscreen = FALSE;
4171         view->sizing_mode = EV_SIZING_FIT_WIDTH;
4172         view->pending_scroll = SCROLL_TO_KEEP_POSITION;
4173         view->jump_to_find_result = TRUE;
4174         view->highlight_find_results = FALSE;
4175
4176         gtk_layout_set_hadjustment (GTK_LAYOUT (view), NULL);
4177         gtk_layout_set_vadjustment (GTK_LAYOUT (view), NULL);
4178
4179         gtk_drag_dest_set (GTK_WIDGET (view),
4180                            GTK_DEST_DEFAULT_ALL,
4181                            view_drop_targets,
4182                            G_N_ELEMENTS (view_drop_targets),
4183                            GDK_ACTION_COPY);
4184 }
4185
4186 /*** Callbacks ***/
4187
4188 static void
4189 find_changed_cb (EvDocument *document, int page, EvView *view)
4190 {
4191         double percent;
4192         int n_pages;
4193
4194         percent = ev_document_find_get_progress
4195                         (EV_DOCUMENT_FIND (view->document));
4196         n_pages = ev_page_cache_get_n_pages (view->page_cache);
4197
4198         if (view->jump_to_find_result == TRUE) {
4199                 jump_to_find_page (view, EV_VIEW_FIND_NEXT, 0);
4200                 jump_to_find_result (view);
4201         }
4202         update_find_status_message (view, percent * n_pages >= n_pages - 1 );
4203         if (view->current_page == page)
4204                 gtk_widget_queue_draw (GTK_WIDGET (view));
4205 }
4206
4207 static void
4208 job_finished_cb (EvPixbufCache *pixbuf_cache,
4209                  GdkRegion     *region,
4210                  EvView        *view)
4211 {
4212         if (region) {
4213                 gdk_window_invalidate_region (view->layout.bin_window,
4214                                               region, TRUE);
4215         } else {
4216                 gtk_widget_queue_draw (GTK_WIDGET (view));
4217         }
4218 }
4219
4220 static void
4221 page_changed_cb (EvPageCache *page_cache,
4222                  int          new_page,
4223                  EvView      *view)
4224 {
4225         if (view->current_page != new_page) {
4226                 gint x, y;
4227
4228                 view->current_page = new_page;
4229                 view->pending_scroll = SCROLL_TO_PAGE_POSITION;
4230
4231                 if (view->presentation)
4232                         ev_view_presentation_transition_start (view);
4233
4234                 gtk_widget_get_pointer (GTK_WIDGET (view), &x, &y);
4235                 ev_view_handle_cursor_over_xy (view, x, y);
4236
4237                 gtk_widget_queue_resize (GTK_WIDGET (view));
4238         } else {
4239                 gtk_widget_queue_draw (GTK_WIDGET (view));
4240         }
4241
4242         if (EV_IS_DOCUMENT_FIND (view->document)) {
4243                 view->find_result = 0;
4244                 update_find_status_message (view, TRUE);
4245         }
4246 }
4247
4248 static void
4249 on_adjustment_value_changed (GtkAdjustment *adjustment,
4250                              EvView        *view)
4251 {
4252         int dx = 0, dy = 0;
4253         gint x, y;
4254         GList *children, *l;
4255
4256         if (! GTK_WIDGET_REALIZED (view))
4257                 return;
4258
4259         if (view->hadjustment) {
4260                 dx = view->scroll_x - (int) view->hadjustment->value;
4261                 view->scroll_x = (int) view->hadjustment->value;
4262         } else {
4263                 view->scroll_x = 0;
4264         }
4265
4266         if (view->vadjustment) {
4267                 dy = view->scroll_y - (int) view->vadjustment->value;
4268                 view->scroll_y = (int) view->vadjustment->value;
4269         } else {
4270                 view->scroll_y = 0;
4271         }
4272
4273         children = gtk_container_get_children (GTK_CONTAINER (view));
4274         for (l = children; l && l->data; l = g_list_next (l)) {
4275                 gint       child_x, child_y;
4276                 GtkWidget *child = (GtkWidget *)l->data;
4277
4278                 gtk_container_child_get (GTK_CONTAINER (view),
4279                                          child,
4280                                          "x", &child_x,
4281                                          "y", &child_y,
4282                                          NULL);
4283                 gtk_layout_move (GTK_LAYOUT (view), child, child_x + dx, child_y + dy);
4284         }
4285         g_list_free (children);
4286
4287         if (view->pending_resize)
4288                 gtk_widget_queue_draw (GTK_WIDGET (view));
4289         else
4290                 gdk_window_scroll (view->layout.bin_window, dx, dy);
4291
4292         gtk_widget_get_pointer (GTK_WIDGET (view), &x, &y);
4293         ev_view_handle_cursor_over_xy (view, x, y);
4294
4295         if (view->document)
4296                 view_update_range_and_current_page (view);
4297 }
4298
4299 GtkWidget*
4300 ev_view_new (void)
4301 {
4302         GtkWidget *view;
4303
4304         view = g_object_new (EV_TYPE_VIEW, NULL);
4305
4306         return view;
4307 }
4308
4309 static void
4310 setup_caches (EvView *view)
4311 {
4312         view->page_cache = ev_page_cache_get (view->document);
4313         g_signal_connect (view->page_cache, "page-changed", G_CALLBACK (page_changed_cb), view);
4314         view->pixbuf_cache = ev_pixbuf_cache_new (GTK_WIDGET (view), view->document);
4315         g_signal_connect (view->pixbuf_cache, "job-finished", G_CALLBACK (job_finished_cb), view);
4316         page_changed_cb (view->page_cache,
4317                          ev_page_cache_get_current_page (view->page_cache),
4318                          view);
4319 }
4320
4321 static void
4322 clear_caches (EvView *view)
4323 {
4324         if (view->pixbuf_cache) {
4325                 g_object_unref (view->pixbuf_cache);
4326                 view->pixbuf_cache = NULL;
4327         }
4328
4329         if (view->page_cache) {
4330                 view->page_cache = NULL;
4331         }
4332 }
4333
4334 void
4335 ev_view_set_loading (EvView       *view,
4336                      gboolean      loading)
4337 {
4338         view->loading = loading;
4339         gtk_widget_queue_draw (GTK_WIDGET (view));
4340 }
4341
4342 static gboolean ev_view_autoscroll_cb (EvView *view)
4343 {
4344         gdouble speed, value;
4345
4346         /* If the user stops autoscrolling, autoscrolling will be
4347          * set to false but the timeout will continue; stop the timeout: */
4348         if (!view->scroll_info.autoscrolling) {
4349                 view->scroll_info.timeout_id = 0;
4350                 return FALSE;
4351         }
4352
4353         if (view->scroll_info.last_y > view->scroll_info.start_y &&
4354                 (view->scroll_info.last_y < view->scroll_info.start_y))
4355                 return TRUE;
4356
4357         /* Replace 100 with your speed of choice: The lower the faster.
4358          * Replace 3 with another speed of choice: The higher, the faster it accelerated
4359          *      based on the distance of the starting point from the mouse
4360          * (All also effected by the timeout interval of this callback) */
4361
4362         if (view->scroll_info.start_y > view->scroll_info.last_y)
4363                 speed = -pow ((((gdouble)view->scroll_info.start_y - view->scroll_info.last_y) / 100), 3);
4364         else
4365                 speed = pow ((((gdouble)view->scroll_info.last_y - view->scroll_info.start_y) / 100), 3);
4366
4367         value = gtk_adjustment_get_value (view->vadjustment);
4368         value = CLAMP (value + speed, 0, view->vadjustment->upper - view->vadjustment->page_size);
4369         gtk_adjustment_set_value (view->vadjustment, value);
4370
4371         return TRUE;
4372
4373 }
4374
4375 void ev_view_autoscroll(EvView *view)
4376 {
4377         view->scroll_info.autoscrolling = TRUE;
4378         view->scroll_info.timeout_id = g_timeout_add (20, (GSourceFunc)(ev_view_autoscroll_cb), view);
4379 }
4380
4381 void
4382 ev_view_set_document (EvView     *view,
4383                       EvDocument *document)
4384 {
4385         g_return_if_fail (EV_IS_VIEW (view));
4386
4387         view->loading = FALSE;
4388
4389         if (document != view->document) {
4390                 clear_caches (view);
4391
4392                 if (view->document) {
4393                         g_signal_handlers_disconnect_by_func (view->document,
4394                                                               find_changed_cb,
4395                                                               view);
4396                         g_object_unref (view->document);
4397                         view->page_cache = NULL;
4398
4399                 }
4400
4401                 view->document = document;
4402                 view->find_result = 0;
4403
4404                 if (view->document) {
4405                         g_object_ref (view->document);
4406                         if (EV_IS_DOCUMENT_FIND (view->document)) {
4407                                 g_signal_connect (view->document,
4408                                                   "find_changed",
4409                                                   G_CALLBACK (find_changed_cb),
4410                                                   view);
4411                         }
4412
4413                         setup_caches (view);
4414                 }
4415
4416                 gtk_widget_queue_resize (GTK_WIDGET (view));
4417         }
4418 }
4419
4420 /*** Zoom and sizing mode ***/
4421
4422 #define EPSILON 0.0000001
4423 void
4424 ev_view_set_zoom (EvView   *view,
4425                   double    factor,
4426                   gboolean  relative)
4427 {
4428         double scale;
4429
4430         if (relative)
4431                 scale = view->scale * factor;
4432         else
4433                 scale = factor;
4434
4435         scale = CLAMP (scale,
4436                        view->sizing_mode == EV_SIZING_FREE ? view->min_scale : 0,
4437                        view->max_scale);
4438
4439         if (ABS (view->scale - scale) < EPSILON)
4440                 return;
4441
4442         if (view->loading_text) {
4443                 cairo_surface_destroy (view->loading_text);
4444                 view->loading_text = NULL;
4445         }
4446
4447         view->scale = scale;
4448         view->pending_resize = TRUE;
4449
4450         gtk_widget_queue_resize (GTK_WIDGET (view));
4451
4452         g_object_notify (G_OBJECT (view), "zoom");
4453 }
4454
4455 double
4456 ev_view_get_zoom (EvView *view)
4457 {
4458         return view->scale;
4459 }
4460
4461 void
4462 ev_view_set_screen_dpi (EvView  *view,
4463                         gdouble  dpi)
4464 {
4465         g_return_if_fail (EV_IS_VIEW (view));
4466         g_return_if_fail (dpi > 0);
4467
4468         view->dpi = dpi;
4469         view->min_scale = MIN_SCALE * dpi / 72.0;
4470         view->max_scale = MAX_SCALE * dpi / 72.0;
4471 }
4472
4473 gboolean
4474 ev_view_get_continuous (EvView *view)
4475 {
4476         g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
4477
4478         return view->continuous;
4479 }
4480
4481 void
4482 ev_view_set_continuous (EvView   *view,
4483                         gboolean  continuous)
4484 {
4485         g_return_if_fail (EV_IS_VIEW (view));
4486
4487         continuous = continuous != FALSE;
4488
4489         if (view->continuous != continuous) {
4490                 view->continuous = continuous;
4491                 view->pending_scroll = SCROLL_TO_PAGE_POSITION;
4492                 gtk_widget_queue_resize (GTK_WIDGET (view));
4493         }
4494
4495         g_object_notify (G_OBJECT (view), "continuous");
4496 }
4497
4498 gboolean
4499 ev_view_get_dual_page (EvView *view)
4500 {
4501         g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
4502
4503         return view->dual_page;
4504 }
4505
4506 void
4507 ev_view_set_dual_page (EvView   *view,
4508                        gboolean  dual_page)
4509 {
4510         g_return_if_fail (EV_IS_VIEW (view));
4511
4512         dual_page = dual_page != FALSE;
4513
4514         if (view->dual_page == dual_page)
4515                 return;
4516
4517         view->pending_scroll = SCROLL_TO_PAGE_POSITION;
4518         view->dual_page = dual_page;
4519         /* FIXME: if we're keeping the pixbuf cache around, we should extend the
4520          * preload_cache_size to be 2 if dual_page is set.
4521          */
4522         gtk_widget_queue_resize (GTK_WIDGET (view));
4523
4524         g_object_notify (G_OBJECT (view), "dual-page");
4525 }
4526
4527 void
4528 ev_view_set_fullscreen (EvView   *view,
4529                          gboolean  fullscreen)
4530 {
4531         g_return_if_fail (EV_IS_VIEW (view));
4532
4533         fullscreen = fullscreen != FALSE;
4534
4535         if (view->fullscreen == fullscreen)
4536                 return;
4537
4538         view->fullscreen = fullscreen;
4539         gtk_widget_queue_resize (GTK_WIDGET (view));
4540
4541         g_object_notify (G_OBJECT (view), "fullscreen");
4542 }
4543
4544 gboolean
4545 ev_view_get_fullscreen (EvView *view)
4546 {
4547         g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
4548
4549         return view->fullscreen;
4550 }
4551
4552 void
4553 ev_view_set_presentation (EvView   *view,
4554                           gboolean  presentation)
4555 {
4556         g_return_if_fail (EV_IS_VIEW (view));
4557
4558         presentation = presentation != FALSE;
4559
4560         if (view->presentation == presentation)
4561                 return;
4562
4563         if (!presentation)
4564                 view->presentation_state = EV_PRESENTATION_NORMAL;
4565
4566         view->presentation = presentation;
4567         view->pending_scroll = SCROLL_TO_PAGE_POSITION;
4568
4569         if (presentation) {
4570                 view->sizing_mode_saved = view->sizing_mode;
4571                 view->scale_saved = view->scale;
4572                 ev_view_set_sizing_mode (view, EV_SIZING_BEST_FIT);
4573         } else {
4574                 ev_view_set_sizing_mode (view, view->sizing_mode_saved);
4575                 ev_view_set_zoom (view, view->scale_saved, FALSE);
4576         }
4577
4578         gtk_widget_queue_resize (GTK_WIDGET (view));
4579
4580         if (presentation)
4581                 ev_view_presentation_transition_start (view);
4582         else
4583                 ev_view_presentation_transition_stop (view);
4584
4585         if (GTK_WIDGET_REALIZED (view)) {
4586                 if (view->presentation)
4587                         gdk_window_set_background (view->layout.bin_window,
4588                                                    &GTK_WIDGET (view)->style->black);
4589                 else
4590                         gdk_window_set_background (view->layout.bin_window,
4591                                                    &GTK_WIDGET (view)->style->mid [GTK_STATE_NORMAL]);
4592         }
4593
4594         g_object_notify (G_OBJECT (view), "presentation");
4595 }
4596
4597 gboolean
4598 ev_view_get_presentation (EvView *view)
4599 {
4600         g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
4601
4602         return view->presentation;
4603 }
4604
4605 static gboolean
4606 transition_next_page (EvView *view)
4607 {
4608         ev_view_next_page (view);
4609
4610         return FALSE;
4611 }
4612
4613 static void
4614 ev_view_presentation_transition_stop (EvView *view)
4615 {
4616         if (view->trans_timeout_id > 0)
4617                 g_source_remove (view->trans_timeout_id);
4618         view->trans_timeout_id = 0;
4619 }
4620
4621 static void
4622 ev_view_presentation_transition_start (EvView *view)
4623 {
4624         gdouble duration;
4625
4626         if (!EV_IS_DOCUMENT_TRANSITION (view->document))
4627                 return;
4628
4629         ev_view_presentation_transition_stop (view);
4630
4631         duration = ev_document_transition_get_page_duration (EV_DOCUMENT_TRANSITION (view->document),
4632                                                              view->current_page);
4633         if (duration > 0) {
4634 #if GLIB_CHECK_VERSION (2, 13, 0)
4635                 view->trans_timeout_id =
4636                         g_timeout_add_seconds (duration,
4637                                                (GSourceFunc) transition_next_page,
4638                                                view);
4639 #else
4640                 view->trans_timeout_id =
4641                         g_timeout_add (duration * 1000,
4642                                        (GSourceFunc) transition_next_page,
4643                                        view);
4644 #endif
4645         }
4646 }
4647
4648 void
4649 ev_view_set_sizing_mode (EvView       *view,
4650                          EvSizingMode  sizing_mode)
4651 {
4652         g_return_if_fail (EV_IS_VIEW (view));
4653
4654         if (view->sizing_mode == sizing_mode)
4655                 return;
4656
4657         view->sizing_mode = sizing_mode;
4658         gtk_widget_queue_resize (GTK_WIDGET (view));
4659
4660         g_object_notify (G_OBJECT (view), "sizing-mode");
4661 }
4662
4663 EvSizingMode
4664 ev_view_get_sizing_mode (EvView *view)
4665 {
4666         g_return_val_if_fail (EV_IS_VIEW (view), EV_SIZING_FREE);
4667
4668         return view->sizing_mode;
4669 }
4670
4671 gboolean
4672 ev_view_can_zoom_in (EvView *view)
4673 {
4674         return view->scale * ZOOM_IN_FACTOR <= view->max_scale;
4675 }
4676
4677 gboolean
4678 ev_view_can_zoom_out (EvView *view)
4679 {
4680         return view->scale * ZOOM_OUT_FACTOR >= view->min_scale;
4681 }
4682
4683 void
4684 ev_view_zoom_in (EvView *view)
4685 {
4686         g_return_if_fail (view->sizing_mode == EV_SIZING_FREE);
4687
4688         if (view->presentation)
4689                 return;
4690
4691         view->pending_scroll = SCROLL_TO_CENTER;
4692         ev_view_set_zoom (view, ZOOM_IN_FACTOR, TRUE);
4693 }
4694
4695 void
4696 ev_view_zoom_out (EvView *view)
4697 {
4698         g_return_if_fail (view->sizing_mode == EV_SIZING_FREE);
4699
4700         if (view->presentation)
4701                 return;
4702
4703         view->pending_scroll = SCROLL_TO_CENTER;
4704         ev_view_set_zoom (view, ZOOM_OUT_FACTOR, TRUE);
4705 }
4706
4707 void
4708 ev_view_rotate_right (EvView *view)
4709 {
4710         int rotation = view->rotation + 90;
4711
4712         if (rotation >= 360) {
4713                 rotation -= 360;
4714         }
4715
4716         ev_view_set_rotation (view, rotation);
4717 }
4718
4719 void
4720 ev_view_rotate_left (EvView *view)
4721 {
4722         int rotation = view->rotation - 90;
4723
4724         if (rotation < 0) {
4725                 rotation += 360;
4726         }
4727
4728         ev_view_set_rotation (view, rotation);
4729 }
4730
4731 void
4732 ev_view_set_rotation (EvView *view, int rotation)
4733 {
4734         view->rotation = rotation;
4735
4736         if (view->pixbuf_cache) {
4737                 ev_pixbuf_cache_clear (view->pixbuf_cache);
4738                 gtk_widget_queue_resize (GTK_WIDGET (view));
4739         }
4740
4741         if (rotation != 0)
4742                 clear_selection (view);
4743
4744         g_object_notify (G_OBJECT (view), "rotation");
4745 }
4746
4747 int
4748 ev_view_get_rotation (EvView *view)
4749 {
4750         return view->rotation;
4751 }
4752
4753 static double
4754 zoom_for_size_fit_width (int doc_width,
4755                          int doc_height,
4756                          int target_width,
4757                          int target_height,
4758                          int vsb_width)
4759 {
4760         double scale;
4761
4762         scale = (double)target_width / doc_width;
4763
4764         if (doc_height * scale > target_height)
4765                 scale = (double) (target_width - vsb_width) / doc_width;
4766
4767         return scale;
4768 }
4769
4770 static double
4771 zoom_for_size_fit_height (int doc_width,
4772                           int doc_height,
4773                           int target_width,
4774                           int target_height,
4775                           int vsb_height)
4776 {
4777         double scale;
4778
4779         scale = (double)target_height / doc_height;
4780
4781         if (doc_width * scale > target_width)
4782                 scale = (double) (target_height - vsb_height) / doc_height;
4783
4784         return scale;
4785 }
4786
4787 static double
4788 zoom_for_size_best_fit (int doc_width,
4789                         int doc_height,
4790                         int target_width,
4791                         int target_height,
4792                         int vsb_width,
4793                         int hsb_width)
4794 {
4795         double w_scale;
4796         double h_scale;
4797
4798         w_scale = (double)target_width / doc_width;
4799         h_scale = (double)target_height / doc_height;
4800
4801         if (doc_height * w_scale > target_height)
4802                 w_scale = (double) (target_width - vsb_width) / doc_width;
4803         if (doc_width * h_scale > target_width)
4804                 h_scale = (double) (target_height - hsb_width) / doc_height;
4805
4806         return MIN (w_scale, h_scale);
4807 }
4808
4809
4810 static void
4811 ev_view_zoom_for_size_presentation (EvView *view,
4812                                     int     width,
4813                                     int     height)
4814 {
4815         int doc_width, doc_height;
4816         gdouble scale;
4817
4818         ev_page_cache_get_size (view->page_cache,
4819                                 view->current_page,
4820                                 view->rotation,
4821                                 1.0,
4822                                 &doc_width,
4823                                 &doc_height);
4824         scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, 0, 0);
4825         ev_view_set_zoom (view, scale, FALSE);
4826 }
4827
4828 static void
4829 ev_view_zoom_for_size_continuous_and_dual_page (EvView *view,
4830                            int     width,
4831                            int     height,
4832                            int     vsb_width,
4833                            int     hsb_height)
4834 {
4835         int doc_width, doc_height;
4836         GtkBorder border;
4837         gdouble scale;
4838
4839         ev_page_cache_get_max_width (view->page_cache,
4840                                      view->rotation,
4841                                      1.0,
4842                                      &doc_width);
4843         ev_page_cache_get_max_height (view->page_cache,
4844                                       view->rotation,
4845                                       1.0,
4846                                       &doc_height);
4847         compute_border (view, doc_width, doc_height, &border);
4848
4849         doc_width = doc_width * 2;
4850         width -= (2 * (border.left + border.right) + 3 * view->spacing);
4851         height -= (border.top + border.bottom + 2 * view->spacing - 1);
4852
4853         /* FIXME: We really need to calculate the overall height here, not the
4854          * page height.  We assume there's always a vertical scrollbar for
4855          * now.  We need to fix this. */
4856         if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
4857                 scale = zoom_for_size_fit_width (doc_width, doc_height, width - vsb_width, height, 0);
4858         else if (view->sizing_mode == EV_SIZING_BEST_FIT)
4859                 scale = zoom_for_size_best_fit (doc_width, doc_height, width - vsb_width, height, 0, hsb_height);
4860         else
4861                 g_assert_not_reached ();
4862
4863         ev_view_set_zoom (view, scale, FALSE);
4864 }
4865
4866 static void
4867 ev_view_zoom_for_size_continuous (EvView *view,
4868                                   int     width,
4869                                   int     height,
4870                                   int     vsb_width,
4871                                   int     hsb_height)
4872 {
4873         int doc_width, doc_height;
4874         GtkBorder border;
4875         gdouble scale;
4876
4877         ev_page_cache_get_max_width (view->page_cache,
4878                                      view->rotation,
4879                                      1.0,
4880                                      &doc_width);
4881         ev_page_cache_get_max_height (view->page_cache,
4882                                       view->rotation,
4883                                       1.0,
4884                                       &doc_height);
4885         compute_border (view, doc_width, doc_height, &border);
4886
4887         width -= (border.left + border.right + 2 * view->spacing);
4888         height -= (border.top + border.bottom + 2 * view->spacing - 1);
4889
4890         /* FIXME: We really need to calculate the overall height here, not the
4891          * page height.  We assume there's always a vertical scrollbar for
4892          * now.  We need to fix this. */
4893         if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
4894                 scale = zoom_for_size_fit_width (doc_width, doc_height, width - vsb_width, height, 0);
4895         else if (view->sizing_mode == EV_SIZING_BEST_FIT)
4896                 scale = zoom_for_size_best_fit (doc_width, doc_height, width - vsb_width, height, 0, hsb_height);
4897         else
4898                 g_assert_not_reached ();
4899
4900         ev_view_set_zoom (view, scale, FALSE);
4901 }
4902
4903 static void
4904 ev_view_zoom_for_size_dual_page (EvView *view,
4905                                  int     width,
4906                                  int     height,
4907                                  int     vsb_width,
4908                                  int     hsb_height)
4909 {
4910         GtkBorder border;
4911         gint doc_width, doc_height;
4912         gdouble scale;
4913         gint other_page;
4914
4915         other_page = view->current_page ^ 1;
4916
4917         /* Find the largest of the two. */
4918         ev_page_cache_get_size (view->page_cache,
4919                                 view->current_page,
4920                                 view->rotation,
4921                                 1.0,
4922                                 &doc_width, &doc_height);
4923
4924         if (other_page < ev_page_cache_get_n_pages (view->page_cache)) {
4925                 gint width_2, height_2;
4926                 ev_page_cache_get_size (view->page_cache,
4927                                         other_page,
4928                                         view->rotation,
4929                                         1.0,
4930                                         &width_2, &height_2);
4931                 if (width_2 > doc_width)
4932                         doc_width = width_2;
4933                 if (height_2 > doc_height)
4934                         doc_height = height_2;
4935         }
4936         compute_border (view, doc_width, doc_height, &border);
4937
4938         doc_width = doc_width * 2;
4939         width -= ((border.left + border.right)* 2 + 3 * view->spacing);
4940         height -= (border.top + border.bottom + 2 * view->spacing);
4941
4942         if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
4943                 scale = zoom_for_size_fit_width (doc_width, doc_height, width, height, vsb_width);
4944         else if (view->sizing_mode == EV_SIZING_BEST_FIT)
4945                 scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, vsb_width, hsb_height);
4946         else
4947                 g_assert_not_reached ();
4948
4949         ev_view_set_zoom (view, scale, FALSE);
4950 }
4951
4952 static void
4953 ev_view_zoom_for_size_single_page (EvView *view,
4954                                    int     width,
4955                                    int     height,
4956                                    int     vsb_width,
4957                                    int     hsb_height)
4958 {
4959         int doc_width, doc_height;
4960         GtkBorder border;
4961         gdouble scale;
4962
4963         ev_page_cache_get_size (view->page_cache,
4964                                 view->current_page,
4965                                 view->rotation,
4966                                 1.0,
4967                                 &doc_width,
4968                                 &doc_height);
4969         /* Get an approximate border */
4970         compute_border (view, width, height, &border);
4971
4972         width -= (border.left + border.right + 2 * view->spacing);
4973         height -= (border.top + border.bottom + 2 * view->spacing);
4974
4975         if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
4976                 scale = zoom_for_size_fit_width (doc_width, doc_height, width, height, vsb_width);
4977         else if (view->sizing_mode == EV_SIZING_BEST_FIT)
4978                 scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, vsb_width, hsb_height);
4979         else
4980                 g_assert_not_reached ();
4981
4982         ev_view_set_zoom (view, scale, FALSE);
4983 }
4984
4985 static void
4986 ev_view_set_zoom_for_size (EvView *view,
4987                            int     width,
4988                            int     height,
4989                            int     vsb_width,
4990                            int     hsb_height)
4991 {
4992         g_return_if_fail (EV_IS_VIEW (view));
4993         g_return_if_fail (view->sizing_mode == EV_SIZING_FIT_WIDTH ||
4994                           view->sizing_mode == EV_SIZING_BEST_FIT);
4995         g_return_if_fail (width >= 0);
4996         g_return_if_fail (height >= 0);
4997
4998         if (view->document == NULL)
4999                 return;
5000
5001         if (view->presentation)
5002                 ev_view_zoom_for_size_presentation (view, width, height);
5003         else if (view->continuous && view->dual_page)
5004                 ev_view_zoom_for_size_continuous_and_dual_page (view, width, height, vsb_width, hsb_height);
5005         else if (view->continuous)
5006                 ev_view_zoom_for_size_continuous (view, width, height, vsb_width, hsb_height);
5007         else if (view->dual_page)
5008                 ev_view_zoom_for_size_dual_page (view, width, height, vsb_width, hsb_height);
5009         else
5010                 ev_view_zoom_for_size_single_page (view, width, height, vsb_width, hsb_height);
5011 }
5012
5013 /*** Find ***/
5014 static void
5015 update_find_status_message (EvView *view, gboolean this_page)
5016 {
5017         char *message;
5018
5019         if (this_page) {
5020                 int results;
5021
5022                 results = ev_document_find_get_n_results
5023                                 (EV_DOCUMENT_FIND (view->document),
5024                                  view->current_page);
5025                 /* TRANS: Sometimes this could be better translated as
5026                    "%d hit(s) on this page".  Therefore this string
5027                    contains plural cases. */
5028                 message = g_strdup_printf (ngettext ("%d found on this page",
5029                                                      "%d found on this page",
5030                                                      results),
5031                                            results);
5032         } else {
5033                 double percent;
5034
5035                 percent = ev_document_find_get_progress
5036                                 (EV_DOCUMENT_FIND (view->document));
5037                 message = g_strdup_printf (_("%3d%% remaining to search"),
5038                                            (int) ((1.0 - percent) * 100));
5039
5040         }
5041         ev_view_set_find_status (view, message);
5042         g_free (message);
5043 }
5044
5045 const char *
5046 ev_view_get_find_status (EvView *view)
5047 {
5048         g_return_val_if_fail (EV_IS_VIEW (view), NULL);
5049
5050         return view->find_status;
5051 }
5052
5053 static void
5054 ev_view_set_find_status (EvView *view, const char *message)
5055 {
5056         g_return_if_fail (EV_IS_VIEW (view));
5057
5058         g_free (view->find_status);
5059         view->find_status = g_strdup (message);
5060         g_object_notify (G_OBJECT (view), "find-status");
5061 }
5062
5063 static void
5064 jump_to_find_result (EvView *view)
5065 {
5066         EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
5067         EvRectangle rect;
5068         GdkRectangle view_rect;
5069         int n_results;
5070         int page = view->current_page;
5071
5072         n_results = ev_document_find_get_n_results (find, page);
5073
5074         if (n_results > 0  && view->find_result < n_results) {
5075                 ev_document_find_get_result
5076                         (find, page, view->find_result, &rect);
5077
5078                 doc_rect_to_view_rect (view, page, &rect, &view_rect);
5079                 ensure_rectangle_is_visible (view, &view_rect);
5080         }
5081 }
5082
5083 /**
5084  * jump_to_find_page
5085  * @view: #EvView instance
5086  * @direction: Direction to look
5087  * @shift: Shift from current page
5088  *
5089  * Jumps to the first page that has occurences of searched word.
5090  * Uses a direction where to look and a shift from current page.
5091  *
5092  */
5093 static void
5094 jump_to_find_page (EvView *view, EvViewFindDirection direction, gint shift)
5095 {
5096         int n_pages, i;
5097
5098         n_pages = ev_page_cache_get_n_pages (view->page_cache);
5099
5100         for (i = 0; i < n_pages; i++) {
5101                 int has_results;
5102                 int page;
5103
5104                 if (direction == EV_VIEW_FIND_NEXT)
5105                         page = view->current_page + i;
5106                 else
5107                         page = view->current_page - i;
5108                 page += shift;
5109
5110                 if (page >= n_pages) {
5111                         page = page - n_pages;
5112                 }
5113                 if (page < 0)
5114                         page = page + n_pages;
5115
5116                 has_results = ev_document_find_page_has_results
5117                                 (EV_DOCUMENT_FIND (view->document), page);
5118                 if (has_results == -1) {
5119                         break;
5120                 } else if (has_results == 1) {
5121                         ev_page_cache_set_current_page (view->page_cache, page);
5122                         break;
5123                 }
5124         }
5125 }
5126
5127 gboolean
5128 ev_view_can_find_next (EvView *view)
5129 {
5130         if (EV_IS_DOCUMENT_FIND (view->document)) {
5131                 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
5132                 int i, n_pages;
5133
5134                 n_pages = ev_page_cache_get_n_pages (view->page_cache);
5135                 for (i = 0; i < n_pages; i++) {
5136                         if (ev_document_find_get_n_results (find, i) > 0) {
5137                                 return TRUE;
5138                         }
5139                 }
5140         }
5141
5142         return FALSE;
5143 }
5144
5145 void
5146 ev_view_find_next (EvView *view)
5147 {
5148         int n_results, n_pages;
5149         EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
5150
5151         n_results = ev_document_find_get_n_results (find, view->current_page);
5152
5153         n_pages = ev_page_cache_get_n_pages (view->page_cache);
5154
5155         view->find_result++;
5156
5157         if (view->find_result >= n_results) {
5158
5159                 view->find_result = 0;
5160                 jump_to_find_page (view, EV_VIEW_FIND_NEXT, 1);
5161                 jump_to_find_result (view);
5162         } else {
5163                 jump_to_find_result (view);
5164                 gtk_widget_queue_draw (GTK_WIDGET (view));
5165         }
5166 }
5167
5168 gboolean
5169 ev_view_can_find_previous (EvView *view)
5170 {
5171         if (EV_IS_DOCUMENT_FIND (view->document)) {
5172                 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
5173                 int i, n_pages;
5174
5175                 n_pages = ev_page_cache_get_n_pages (view->page_cache);
5176                 for (i = n_pages - 1; i >= 0; i--) {
5177                         if (ev_document_find_get_n_results (find, i) > 0) {
5178                                 return TRUE;
5179                         }
5180                 }
5181         }
5182
5183         return FALSE;
5184 }
5185 void
5186 ev_view_find_previous (EvView *view)
5187 {
5188         int n_results, n_pages;
5189         EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
5190         EvPageCache *page_cache;
5191
5192         page_cache = ev_page_cache_get (view->document);
5193
5194         n_results = ev_document_find_get_n_results (find, view->current_page);
5195
5196         n_pages = ev_page_cache_get_n_pages (page_cache);
5197
5198         view->find_result--;
5199
5200         if (view->find_result < 0) {
5201
5202                 jump_to_find_page (view, EV_VIEW_FIND_PREV, -1);
5203                 view->find_result = ev_document_find_get_n_results (find, view->current_page) - 1;
5204                 jump_to_find_result (view);
5205         } else {
5206                 jump_to_find_result (view);
5207                 gtk_widget_queue_draw (GTK_WIDGET (view));
5208         }
5209 }
5210
5211 void ev_view_search_changed (EvView *view)
5212 {
5213         /* search string has changed, focus on new search result */
5214         view->jump_to_find_result = TRUE;
5215 }
5216
5217 void ev_view_set_highlight_search (EvView *view, gboolean value)
5218 {
5219         view->highlight_find_results = value;
5220         gtk_widget_queue_draw (GTK_WIDGET (view));
5221 }
5222
5223 /*** Selections ***/
5224
5225 /* compute_new_selection_rect/text calculates the area currently selected by
5226  * view_rect.  each handles a different mode;
5227  */
5228 static GList *
5229 compute_new_selection_rect (EvView       *view,
5230                             GdkPoint     *start,
5231                             GdkPoint     *stop)
5232 {
5233         GdkRectangle view_rect;
5234         int n_pages, i;
5235         GList *list = NULL;
5236
5237         g_assert (view->selection_mode == EV_VIEW_SELECTION_RECTANGLE);
5238
5239         view_rect.x = MIN (start->x, stop->x);
5240         view_rect.y = MIN (start->y, stop->y);
5241         view_rect.width = MAX (start->x, stop->x) - view_rect.x;
5242         view_rect.width = MAX (start->y, stop->y) - view_rect.y;
5243
5244         n_pages = ev_page_cache_get_n_pages (view->page_cache);
5245
5246         for (i = 0; i < n_pages; i++) {
5247                 GdkRectangle page_area;
5248                 GtkBorder border;
5249
5250                 if (get_page_extents (view, i, &page_area, &border)) {
5251                         GdkRectangle overlap;
5252
5253                         if (gdk_rectangle_intersect (&page_area, &view_rect, &overlap)) {
5254                                 EvViewSelection *selection;
5255
5256                                 selection = g_new0 (EvViewSelection, 1);
5257                                 selection->page = i;
5258                                 view_rect_to_doc_rect (view, &overlap, &page_area,
5259                                                        &(selection->rect));
5260
5261                                 list = g_list_append (list, selection);
5262                         }
5263                 }
5264         }
5265
5266         return list;
5267 }
5268
5269 static gboolean
5270 gdk_rectangle_point_in (GdkRectangle *rectangle,
5271                         GdkPoint     *point)
5272 {
5273         return rectangle->x <= point->x &&
5274                 rectangle->y <= point->y &&
5275                 point->x < rectangle->x + rectangle->width &&
5276                 point->y < rectangle->y + rectangle->height;
5277 }
5278
5279 static GList *
5280 compute_new_selection_text (EvView          *view,
5281                             EvSelectionStyle style,
5282                             GdkPoint        *start,
5283                             GdkPoint        *stop)
5284 {
5285         int n_pages, i, first, last;
5286         GList *list = NULL;
5287         EvViewSelection *selection;
5288         gint width, height;
5289         int start_page, end_page;
5290
5291         g_assert (view->selection_mode == EV_VIEW_SELECTION_TEXT);
5292
5293         n_pages = ev_page_cache_get_n_pages (view->page_cache);
5294
5295         /* First figure out the range of pages the selection
5296          * affects. */
5297         first = n_pages;
5298         last = 0;
5299         if (view->continuous) {
5300                 start_page = 0;
5301                 end_page = n_pages;
5302         } else if (view->dual_page) {
5303                 start_page = view->start_page;
5304                 end_page = view->end_page + 1;
5305         } else {
5306                 start_page = view->current_page;
5307                 end_page = view->current_page + 1;
5308         }
5309
5310         for (i = start_page; i < end_page; i++) {
5311                 GdkRectangle page_area;
5312                 GtkBorder border;
5313
5314                 get_page_extents (view, i, &page_area, &border);
5315                 if (gdk_rectangle_point_in (&page_area, start) ||
5316                     gdk_rectangle_point_in (&page_area, stop)) {
5317                         if (first == n_pages)
5318                                 first = i;
5319                         last = i;
5320                 }
5321
5322         }
5323
5324         /* Now create a list of EvViewSelection's for the affected
5325          * pages.  This could be an empty list, a list of just one
5326          * page or a number of pages.*/
5327         for (i = first; i < last + 1; i++) {
5328                 GdkRectangle page_area;
5329                 GtkBorder border;
5330                 GdkPoint *point;
5331
5332                 ev_page_cache_get_size (view->page_cache, i,
5333                                         view->rotation,
5334                                         1.0, &width, &height);
5335
5336                 selection = g_new0 (EvViewSelection, 1);
5337                 selection->page = i;
5338                 selection->style = style;
5339                 selection->rect.x1 = selection->rect.y1 = 0;
5340                 selection->rect.x2 = width;
5341                 selection->rect.y2 = height;
5342
5343                 get_page_extents (view, i, &page_area, &border);
5344
5345                 if (gdk_rectangle_point_in (&page_area, start))
5346                         point = start;
5347                 else
5348                         point = stop;
5349
5350                 if (i == first)
5351                         view_point_to_doc_point (view, point, &page_area,
5352                                                  &selection->rect.x1,
5353                                                  &selection->rect.y1);
5354
5355                 /* If the selection is contained within just one page,
5356                  * make sure we don't write 'start' into both points
5357                  * in selection->rect. */
5358                 if (first == last)
5359                         point = stop;
5360
5361                 if (i == last)
5362                         view_point_to_doc_point (view, point, &page_area,
5363                                                  &selection->rect.x2,
5364                                                  &selection->rect.y2);
5365
5366                 list = g_list_append (list, selection);
5367         }
5368
5369         return list;
5370 }
5371
5372 /* This function takes the newly calculated list, and figures out which regions
5373  * have changed.  It then queues a redraw approporiately.
5374  */
5375 static void
5376 merge_selection_region (EvView *view,
5377                         GList  *new_list)
5378 {
5379         GList *old_list;
5380         GList *new_list_ptr, *old_list_ptr;
5381
5382         /* Update the selection */
5383         old_list = ev_pixbuf_cache_get_selection_list (view->pixbuf_cache);
5384         g_list_foreach (view->selection_info.selections, (GFunc)selection_free, NULL);
5385         view->selection_info.selections = new_list;
5386         ev_pixbuf_cache_set_selection_list (view->pixbuf_cache, new_list);
5387         g_object_notify (G_OBJECT (view), "has-selection");
5388
5389         new_list_ptr = new_list;
5390         old_list_ptr = old_list;
5391
5392         while (new_list_ptr || old_list_ptr) {
5393                 EvViewSelection *old_sel, *new_sel;
5394                 int cur_page;
5395                 GdkRegion *region = NULL;
5396
5397                 new_sel = (new_list_ptr) ? (new_list_ptr->data) : NULL;
5398                 old_sel = (old_list_ptr) ? (old_list_ptr->data) : NULL;
5399
5400                 /* Assume that the lists are in order, and we run through them
5401                  * comparing them, one page at a time.  We come out with the
5402                  * first page we see. */
5403                 if (new_sel && old_sel) {
5404                         if (new_sel->page < old_sel->page) {
5405                                 new_list_ptr = new_list_ptr->next;
5406                                 old_sel = NULL;
5407                         } else if (new_sel->page > old_sel->page) {
5408                                 old_list_ptr = old_list_ptr->next;
5409                                 new_sel = NULL;
5410                         } else {
5411                                 new_list_ptr = new_list_ptr->next;
5412                                 old_list_ptr = old_list_ptr->next;
5413                         }
5414                 } else if (new_sel) {
5415                         new_list_ptr = new_list_ptr->next;
5416                 } else if (old_sel) {
5417                         old_list_ptr = old_list_ptr->next;
5418                 }
5419
5420                 g_assert (new_sel || old_sel);
5421
5422                 /* is the page we're looking at on the screen?*/
5423                 cur_page = new_sel ? new_sel->page : old_sel->page;
5424                 if (cur_page < view->start_page || cur_page > view->end_page)
5425                         continue;
5426
5427                 /* seed the cache with a new page.  We are going to need the new
5428                  * region too. */
5429                 if (new_sel) {
5430                         GdkRegion *tmp_region = NULL;
5431
5432                         ev_pixbuf_cache_get_selection_surface (view->pixbuf_cache,
5433                                                                cur_page,
5434                                                                view->scale,
5435                                                                &tmp_region);
5436
5437                         if (tmp_region) {
5438                                 new_sel->covered_region = gdk_region_copy (tmp_region);
5439                         }
5440                 }
5441
5442                 /* Now we figure out what needs redrawing */
5443                 if (old_sel && new_sel) {
5444                         if (old_sel->covered_region && new_sel->covered_region) {
5445                                 /* We only want to redraw the areas that have
5446                                  * changed, so we xor the old and new regions
5447                                  * and redraw if it's different */
5448                                 region = gdk_region_copy (old_sel->covered_region);
5449                                 gdk_region_xor (region, new_sel->covered_region);
5450                                 if (gdk_region_empty (region)) {
5451                                         gdk_region_destroy (region);
5452                                         region = NULL;
5453                                 }
5454                         } else if (old_sel->covered_region) {
5455                                 region = gdk_region_copy (old_sel->covered_region);
5456                         } else if (new_sel->covered_region) {
5457                                 region = gdk_region_copy (new_sel->covered_region);
5458                         }
5459                 } else if (old_sel && !new_sel) {
5460                         if (old_sel->covered_region && !gdk_region_empty (old_sel->covered_region)) {
5461                                 region = gdk_region_copy (old_sel->covered_region);
5462                         }
5463                 } else if (!old_sel && new_sel) {
5464                         if (new_sel->covered_region && !gdk_region_empty (new_sel->covered_region)) {
5465                                 region = gdk_region_copy (new_sel->covered_region);
5466                         }
5467                 } else {
5468                         g_assert_not_reached ();
5469                 }
5470
5471                 /* Redraw the damaged region! */
5472                 if (region) {
5473                         GdkRectangle page_area;
5474                         GtkBorder border;
5475
5476                         /* I don't know why but the region is smaller
5477                          * than expected. This hack fixes it, I guess
5478                          * 10 pixels more won't hurt
5479                          */
5480                         gdk_region_shrink (region, -5, -5);
5481
5482                         get_page_extents (view, cur_page, &page_area, &border);
5483                         gdk_region_offset (region,
5484                                            page_area.x + border.left - view->scroll_x,
5485                                            page_area.y + border.top - view->scroll_y);
5486                         gdk_window_invalidate_region (view->layout.bin_window, region, TRUE);
5487                         gdk_region_destroy (region);
5488                 }
5489         }
5490
5491         /* Free the old list, now that we're done with it. */
5492         g_list_foreach (old_list, (GFunc) selection_free, NULL);
5493 }
5494
5495 static void
5496 compute_selections (EvView          *view,
5497                     EvSelectionStyle style,
5498                     GdkPoint        *start,
5499                     GdkPoint        *stop)
5500 {
5501         GList *list;
5502
5503         if (view->selection_mode == EV_VIEW_SELECTION_RECTANGLE)
5504                 list = compute_new_selection_rect (view, start, stop);
5505         else
5506                 list = compute_new_selection_text (view, style, start, stop);
5507         merge_selection_region (view, list);
5508 }
5509
5510 /* Free's the selection.  It's up to the caller to queue redraws if needed.
5511  */
5512 static void
5513 selection_free (EvViewSelection *selection)
5514 {
5515         if (selection->covered_region)
5516                 gdk_region_destroy (selection->covered_region);
5517         g_free (selection);
5518 }
5519
5520 static void
5521 clear_selection (EvView *view)
5522 {
5523         g_list_foreach (view->selection_info.selections, (GFunc)selection_free, NULL);
5524         view->selection_info.selections = NULL;
5525         view->selection_info.in_selection = FALSE;
5526         if (view->pixbuf_cache)
5527                 ev_pixbuf_cache_set_selection_list (view->pixbuf_cache, NULL);
5528         g_object_notify (G_OBJECT (view), "has-selection");
5529 }
5530
5531 void
5532 ev_view_select_all (EvView *view)
5533 {
5534         GList *selections = NULL;
5535         int n_pages, i;
5536
5537         /* Disable selection on rotated pages for the 0.4.0 series */
5538         if (view->rotation != 0)
5539                 return;
5540
5541         clear_selection (view);
5542
5543         n_pages = ev_page_cache_get_n_pages (view->page_cache);
5544         for (i = 0; i < n_pages; i++) {
5545                 int width, height;
5546                 EvViewSelection *selection;
5547
5548                 ev_page_cache_get_size (view->page_cache,
5549                                         i,
5550                                         view->rotation,
5551                                         1.0, &width, &height);
5552
5553                 selection = g_new0 (EvViewSelection, 1);
5554                 selection->page = i;
5555                 selection->style = EV_SELECTION_STYLE_GLYPH;
5556                 selection->rect.x1 = selection->rect.y1 = 0;
5557                 selection->rect.x2 = width;
5558                 selection->rect.y2 = height;
5559
5560                 selections = g_list_append (selections, selection);
5561         }
5562
5563         merge_selection_region (view, selections);
5564         gtk_widget_queue_draw (GTK_WIDGET (view));
5565 }
5566
5567 gboolean
5568 ev_view_get_has_selection (EvView *view)
5569 {
5570         return view->selection_info.selections != NULL;
5571 }
5572
5573 static char *
5574 get_selected_text (EvView *view)
5575 {
5576         GString *text;
5577         GList *l;
5578         gchar *normalized_text;
5579         EvRenderContext *rc;
5580
5581         text = g_string_new (NULL);
5582         rc = ev_render_context_new (view->rotation, 1, view->scale);
5583
5584         ev_document_doc_mutex_lock ();
5585
5586         for (l = view->selection_info.selections; l != NULL; l = l->next) {
5587                 EvViewSelection *selection = (EvViewSelection *)l->data;
5588                 gchar *tmp;
5589
5590                 ev_render_context_set_page (rc, selection->page);
5591                 tmp = ev_selection_get_selected_text (EV_SELECTION (view->document),
5592                                                       rc, selection->style,
5593                                                       &(selection->rect));
5594
5595                 g_string_append (text, tmp);
5596                 g_free (tmp);
5597         }
5598
5599         ev_document_doc_mutex_unlock ();
5600
5601         g_object_unref (rc);
5602
5603         normalized_text = g_utf8_normalize (text->str, text->len, G_NORMALIZE_NFKC);
5604         g_string_free (text, TRUE);
5605         return normalized_text;
5606 }
5607
5608 void
5609 ev_view_copy (EvView *ev_view)
5610 {
5611         GtkClipboard *clipboard;
5612         char *text;
5613
5614         if (!EV_IS_SELECTION (ev_view->document))
5615                 return;
5616
5617         text = get_selected_text (ev_view);
5618         clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
5619                                               GDK_SELECTION_CLIPBOARD);
5620         gtk_clipboard_set_text (clipboard, text, -1);
5621         g_free (text);
5622 }
5623
5624 static void
5625 ev_view_primary_get_cb (GtkClipboard     *clipboard,
5626                         GtkSelectionData *selection_data,
5627                         guint             info,
5628                         gpointer          data)
5629 {
5630         EvView *ev_view = EV_VIEW (data);
5631         char *text;
5632
5633         if (!EV_IS_SELECTION (ev_view->document))
5634                 return;
5635
5636         text = get_selected_text (ev_view);
5637         if (text) {
5638                 gtk_selection_data_set_text (selection_data, text, -1);
5639                 g_free (text);
5640         }
5641 }
5642
5643 static void
5644 ev_view_primary_clear_cb (GtkClipboard *clipboard,
5645                           gpointer      data)
5646 {
5647         EvView *view = EV_VIEW (data);
5648
5649         clear_selection (view);
5650 }
5651
5652 static void
5653 ev_view_update_primary_selection (EvView *ev_view)
5654 {
5655         GtkClipboard *clipboard;
5656
5657         clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
5658                                               GDK_SELECTION_PRIMARY);
5659
5660         if (ev_view->selection_info.selections) {
5661                 if (!gtk_clipboard_set_with_owner (clipboard,
5662                                                    clipboard_targets,
5663                                                    G_N_ELEMENTS (clipboard_targets),
5664                                                    ev_view_primary_get_cb,
5665                                                    ev_view_primary_clear_cb,
5666                                                    G_OBJECT (ev_view)))
5667                         ev_view_primary_clear_cb (clipboard, ev_view);
5668         } else {
5669                 if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (ev_view))
5670                         gtk_clipboard_clear (clipboard);
5671         }
5672 }
5673
5674 /*** Cursor operations ***/
5675
5676 static GdkCursor *
5677 ev_view_create_invisible_cursor(void)
5678 {
5679        GdkBitmap *empty;
5680        GdkColor black = { 0, 0, 0, 0 };
5681        static char bits[] = { 0x00 };
5682
5683        empty = gdk_bitmap_create_from_data (NULL, bits, 1, 1);
5684
5685        return gdk_cursor_new_from_pixmap (empty, empty, &black, &black, 0, 0);
5686 }
5687
5688 static void
5689 ev_view_set_cursor (EvView *view, EvViewCursor new_cursor)
5690 {
5691         GdkCursor *cursor = NULL;
5692         GdkDisplay *display;
5693         GtkWidget *widget;
5694
5695         if (view->cursor == new_cursor) {
5696                 return;
5697         }
5698
5699         widget = gtk_widget_get_toplevel (GTK_WIDGET (view));
5700         display = gtk_widget_get_display (widget);
5701         view->cursor = new_cursor;
5702
5703         switch (new_cursor) {
5704                 case EV_VIEW_CURSOR_NORMAL:
5705                         gdk_window_set_cursor (view->layout.bin_window, NULL);
5706                         break;
5707                 case EV_VIEW_CURSOR_IBEAM:
5708                         cursor = gdk_cursor_new_for_display (display, GDK_XTERM);
5709                         break;
5710                 case EV_VIEW_CURSOR_LINK:
5711                         cursor = gdk_cursor_new_for_display (display, GDK_HAND2);
5712                         break;
5713                 case EV_VIEW_CURSOR_WAIT:
5714                         cursor = gdk_cursor_new_for_display (display, GDK_WATCH);
5715                         break;
5716                 case EV_VIEW_CURSOR_HIDDEN:
5717                         cursor = ev_view_create_invisible_cursor ();
5718                         break;
5719                 case EV_VIEW_CURSOR_DRAG:
5720                         cursor = gdk_cursor_new_for_display (display, GDK_FLEUR);
5721                         break;
5722                 case EV_VIEW_CURSOR_AUTOSCROLL:
5723                         cursor = gdk_cursor_new_for_display (display, GDK_DOUBLE_ARROW);
5724                         break;
5725         }
5726
5727         if (cursor) {
5728                 gdk_window_set_cursor (view->layout.bin_window, cursor);
5729                 gdk_cursor_unref (cursor);
5730                 gdk_flush();
5731         }
5732 }
5733
5734 void
5735 ev_view_hide_cursor (EvView *view)
5736 {
5737        ev_view_set_cursor (view, EV_VIEW_CURSOR_HIDDEN);
5738 }
5739
5740 void
5741 ev_view_show_cursor (EvView *view)
5742 {
5743        ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
5744 }
5745
5746 static void
5747 ev_view_reset_presentation_state (EvView *view)
5748 {
5749         if (!view->presentation ||
5750             view->presentation_state == EV_PRESENTATION_NORMAL)
5751                 return;
5752
5753         view->presentation_state = EV_PRESENTATION_NORMAL;
5754         gdk_window_set_background (view->layout.bin_window,
5755                                    &GTK_WIDGET (view)->style->black);
5756         gtk_widget_queue_draw (GTK_WIDGET (view));
5757 }
5758
5759 gboolean
5760 ev_view_next_page (EvView *view)
5761 {
5762         int page, n_pages;
5763
5764         g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
5765
5766         if (!view->page_cache)
5767                 return FALSE;
5768
5769         if (view->presentation &&
5770             (view->presentation_state == EV_PRESENTATION_BLACK ||
5771              view->presentation_state == EV_PRESENTATION_WHITE)) {
5772                 ev_view_reset_presentation_state (view);
5773                 return FALSE;
5774         }
5775
5776         ev_view_presentation_transition_stop (view);
5777         ev_view_reset_presentation_state (view);
5778
5779         page = ev_page_cache_get_current_page (view->page_cache);
5780         n_pages = ev_page_cache_get_n_pages (view->page_cache);
5781
5782         if (view->dual_page && !view->presentation)
5783                 page = page + 2;
5784         else
5785                 page = page + 1;
5786
5787         if (page < n_pages) {
5788                 ev_page_cache_set_current_page (view->page_cache, page);
5789                 return TRUE;
5790         } else if (view->presentation && page == n_pages) {
5791                 view->presentation_state = EV_PRESENTATION_END;
5792                 gtk_widget_queue_draw (GTK_WIDGET (view));
5793                 return TRUE;
5794         } else if (view->dual_page && page == n_pages) {
5795                 ev_page_cache_set_current_page (view->page_cache, page - 1);
5796                 return TRUE;
5797         } else {
5798                 return FALSE;
5799         }
5800 }
5801
5802 gboolean
5803 ev_view_previous_page (EvView *view)
5804 {
5805         int page;
5806
5807         g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
5808
5809         if (!view->page_cache)
5810                 return FALSE;
5811
5812         if (view->presentation &&
5813             view->presentation_state == EV_PRESENTATION_END) {
5814                 ev_view_reset_presentation_state (view);
5815                 return TRUE;
5816         }
5817
5818         if (view->presentation &&
5819             (view->presentation_state == EV_PRESENTATION_BLACK ||
5820              view->presentation_state == EV_PRESENTATION_WHITE)) {
5821                 ev_view_reset_presentation_state (view);
5822                 return FALSE;
5823         }
5824
5825         ev_view_reset_presentation_state (view);
5826
5827         page = ev_page_cache_get_current_page (view->page_cache);
5828
5829         if (view->dual_page && !view->presentation)
5830                 page = page - 2;
5831         else
5832                 page = page - 1;
5833
5834         if (page >= 0) {
5835                 ev_page_cache_set_current_page (view->page_cache, page);
5836                 return TRUE;
5837         } else if (ev_view_get_dual_page (view) && page == -1) {
5838                 ev_page_cache_set_current_page (view->page_cache, 0);
5839                 return TRUE;
5840         } else {
5841                 return FALSE;
5842         }
5843 }
5844
5845 /*** Enum description for usage in signal ***/
5846
5847 GType
5848 ev_sizing_mode_get_type (void)
5849 {
5850   static GType etype = 0;
5851   if (etype == 0) {
5852     static const GEnumValue values[] = {
5853       { EV_SIZING_FIT_WIDTH, "EV_SIZING_FIT_WIDTH", "fit-width" },
5854       { EV_SIZING_BEST_FIT, "EV_SIZING_BEST_FIT", "best-fit" },
5855       { EV_SIZING_FREE, "EV_SIZING_FREE", "free" },
5856       { 0, NULL, NULL }
5857     };
5858     etype = g_enum_register_static ("EvSizingMode", values);
5859   }
5860   return etype;
5861 }
5862
5863 GType
5864 ev_scroll_type_get_type (void)
5865 {
5866   static GType etype = 0;
5867   if (etype == 0) {
5868     static const GEnumValue values[] = {
5869       { EV_SCROLL_PAGE_FORWARD, "EV_SCROLL_PAGE_FORWARD", "scroll-page-forward" },
5870       { EV_SCROLL_PAGE_BACKWARD, "EV_SCROLL_PAGE_BACKWARD", "scroll-page-backward" },
5871       { EV_SCROLL_STEP_FORWARD, "EV_SCROLL_STEP_FORWARD", "scroll-step-forward" },
5872       { EV_SCROLL_STEP_FORWARD, "EV_SCROLL_STEP_FORWARD", "scroll-step-forward" },
5873       { EV_SCROLL_STEP_UP, "EV_SCROLL_STEP_UP", "scroll-step-up" },
5874       { EV_SCROLL_STEP_DOWN, "EV_SCROLL_STEP_DOWN", "scroll-step-down" },
5875       { 0, NULL, NULL }
5876     };
5877     etype = g_enum_register_static ("EvScrollType", values);
5878   }
5879   return etype;
5880 }
5881
5882 void
5883 ev_view_update_view_size (EvView *view, GtkScrolledWindow * scrolled_window)
5884 {
5885         int width, height;
5886         GtkRequisition vsb_requisition;
5887         GtkRequisition hsb_requisition;
5888         int scrollbar_spacing;
5889
5890         /* Calculate the width available for the content */
5891         width  = GTK_WIDGET (scrolled_window)->allocation.width;
5892         height = GTK_WIDGET (scrolled_window)->allocation.height;
5893
5894         if (gtk_scrolled_window_get_shadow_type (scrolled_window) == GTK_SHADOW_IN
5895             && view) {
5896                 width -=  2 * GTK_WIDGET(view)->style->xthickness;
5897                 height -= 2 * GTK_WIDGET(view)->style->ythickness;
5898         }
5899
5900         gtk_widget_size_request (scrolled_window->vscrollbar, &vsb_requisition);
5901         gtk_widget_size_request (scrolled_window->hscrollbar, &hsb_requisition);
5902         gtk_widget_style_get (GTK_WIDGET (scrolled_window),
5903                               "scrollbar_spacing",
5904                               &scrollbar_spacing,
5905                               NULL);
5906
5907         if (EV_IS_VIEW(view)) {
5908                 ev_view_set_zoom_for_size (EV_VIEW (view),
5909                                            MAX (1, width),
5910                                            MAX (1, height),
5911                                            vsb_requisition.width + scrollbar_spacing,
5912                                            hsb_requisition.height + scrollbar_spacing);
5913         }
5914 }