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