shell/ev-sidebar.c

   1 /* this file is part of evince, a gnome document viewer
   2  *
   3  *  Copyright (C) 2004 Red Hat, Inc.
   4  *
   5  *  Author:
   6  *    Jonathan Blandford <jrb@alum.mit.edu>
   7  *
   8  * Evince is free software; you can redistribute it and/or modify it
   9  * under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * Evince is distributed in the hope that it will be useful, but
  14  * WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
  21  */
  22
  23 #ifdef HAVE_CONFIG_H
  24 #include "config.h"
  25 #endif
  26
  27 #include <string.h>
  28 #include <gtk/gtk.h>
  29 #include <gdk/gdkkeysyms.h>
  30
  31 #include "ev-sidebar.h"
  32 #include "ev-sidebar-page.h"
  33 #include "ev-document-thumbnails.h"
  34 #include "ev-document-links.h"
  35
  36 enum
  37 {
  38         PAGE_COLUMN_TITLE,
  39         PAGE_COLUMN_MENU_ITEM,
  40         PAGE_COLUMN_MAIN_WIDGET,
  41         PAGE_COLUMN_NOTEBOOK_INDEX,
  42         PAGE_COLUMN_NUM_COLS
  43 };
  44
  45 struct _EvSidebarPrivate {
  46         GtkWidget *notebook;
  47         GtkWidget *menu;
  48         GtkWidget *hbox;
  49         GtkWidget *label;
  50
  51         GtkTreeModel *page_model;
  52 };
  53
  54 G_DEFINE_TYPE (EvSidebar, ev_sidebar, GTK_TYPE_VBOX)
  55
  56 #define EV_SIDEBAR_GET_PRIVATE(object) \
  57                 (G_TYPE_INSTANCE_GET_PRIVATE ((object), EV_TYPE_SIDEBAR, EvSidebarPrivate))
  58
  59 static void
  60 ev_sidebar_destroy (GtkObject *object)
  61 {
  62         EvSidebar *ev_sidebar = EV_SIDEBAR (object);
  63
  64         if (ev_sidebar->priv->menu) {
  65                 gtk_menu_detach (GTK_MENU (ev_sidebar->priv->menu));
  66                 ev_sidebar->priv->menu = NULL;
  67         }
  68
  69         (* GTK_OBJECT_CLASS (ev_sidebar_parent_class)->destroy) (object);
  70 }
  71
  72 static void
  73 ev_sidebar_class_init (EvSidebarClass *ev_sidebar_class)
  74 {
  75         GObjectClass *g_object_class;
  76         GtkWidgetClass *widget_class;
  77         GtkObjectClass *gtk_object_klass;
  78
  79         g_object_class = G_OBJECT_CLASS (ev_sidebar_class);
  80         widget_class = GTK_WIDGET_CLASS (ev_sidebar_class);
  81         gtk_object_klass = GTK_OBJECT_CLASS (ev_sidebar_class);
  82
  83         g_type_class_add_private (g_object_class, sizeof (EvSidebarPrivate));
  84
  85         gtk_object_klass->destroy = ev_sidebar_destroy;
  86 }
  87
  88 static void
  89 ev_sidebar_menu_position_under (GtkMenu  *menu,
  90                                 int      *x,
  91                                 int      *y,
  92                                 gboolean *push_in,
  93                                 gpointer  user_data)
  94 {
  95         GtkWidget *widget;
  96
  97         g_return_if_fail (GTK_IS_BUTTON (user_data));
  98         g_return_if_fail (GTK_WIDGET_NO_WINDOW (user_data));
  99
 100         widget = GTK_WIDGET (user_data);
 101
 102         gdk_window_get_origin (widget->window, x, y);
 103
 104         *x += widget->allocation.x;
 105         *y += widget->allocation.y + widget->allocation.height;
 106
 107         *push_in = FALSE;
 108 }
 109
 110 static gboolean
 111 ev_sidebar_select_button_press_cb (GtkWidget      *widget,
 112                                    GdkEventButton *event,
 113                                    gpointer        user_data)
 114 {
 115         EvSidebar *ev_sidebar = EV_SIDEBAR (user_data);
 116
 117         if (event->button == 1) {
 118                 GtkRequisition requisition;
 119                 gint width;
 120
 121                 width = widget->allocation.width;
 122                 gtk_widget_set_size_request (ev_sidebar->priv->menu, -1, -1);
 123                 gtk_widget_size_request (ev_sidebar->priv->menu, &requisition);
 124                 gtk_widget_set_size_request (ev_sidebar->priv->menu,
 125                                              MAX (width, requisition.width), -1);
 126
 127                 gtk_widget_grab_focus (widget);
 128
 129                 gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (widget), TRUE);
 130                 gtk_menu_popup (GTK_MENU (ev_sidebar->priv->menu),
 131                                 NULL, NULL, ev_sidebar_menu_position_under, widget,
 132                                 event->button, event->time);
 133
 134                 return TRUE;
 135         }
 136
 137         return FALSE;
 138 }
 139
 140 static gboolean
 141 ev_sidebar_select_button_key_press_cb (GtkWidget   *widget,
 142                                        GdkEventKey *event,
 143                                        gpointer     user_data)
 144 {
 145         EvSidebar *ev_sidebar = EV_SIDEBAR (user_data);
 146
 147         if (event->keyval == GDK_space ||
 148             event->keyval == GDK_KP_Space ||
 149             event->keyval == GDK_Return ||
 150             event->keyval == GDK_KP_Enter) {
 151                 gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (widget), TRUE);
 152                 gtk_menu_popup (GTK_MENU (ev_sidebar->priv->menu),
 153                                 NULL, NULL, ev_sidebar_menu_position_under, widget,
 154                                 1, event->time);
 155                 return TRUE;
 156         }
 157
 158         return FALSE;
 159 }
 160
 161 static void
 162 ev_sidebar_close_clicked_cb (GtkWidget *widget,
 163                              gpointer   user_data)
 164 {
 165         EvSidebar *ev_sidebar = EV_SIDEBAR (user_data);
 166
 167         gtk_widget_hide (GTK_WIDGET (ev_sidebar));
 168 }
 169
 170 static void
 171 ev_sidebar_menu_deactivate_cb (GtkWidget *widget,
 172                                gpointer   user_data)
 173 {
 174         GtkWidget *menu_button;
 175
 176         menu_button = GTK_WIDGET (user_data);
 177
 178         gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (menu_button), FALSE);
 179 }
 180
 181 static void
 182 ev_sidebar_menu_detach_cb (GtkWidget *widget,
 183                            GtkMenu   *menu)
 184 {
 185         EvSidebar *ev_sidebar = EV_SIDEBAR (widget);
 186
 187         ev_sidebar->priv->menu = NULL;
 188 }
 189
 190 static void
 191 ev_sidebar_menu_item_activate_cb (GtkWidget *widget,
 192                                   gpointer   user_data)
 193 {
 194         EvSidebar *ev_sidebar = EV_SIDEBAR (user_data);
 195         GtkTreeIter iter;
 196         GtkWidget *menu_item, *item;
 197         gchar *title;
 198         gboolean valid;
 199         gint index;
 200
 201         menu_item = gtk_menu_get_active (GTK_MENU (ev_sidebar->priv->menu));
 202         valid = gtk_tree_model_get_iter_first (ev_sidebar->priv->page_model, &iter);
 203
 204         while (valid) {
 205                 gtk_tree_model_get (ev_sidebar->priv->page_model,
 206                                     &iter,
 207                                     PAGE_COLUMN_TITLE, &title,
 208                                     PAGE_COLUMN_MENU_ITEM, &item,
 209                                     PAGE_COLUMN_NOTEBOOK_INDEX, &index,
 210                                     -1);
 211
 212                 if (item == menu_item) {
 213                         gtk_notebook_set_current_page
 214                                 (GTK_NOTEBOOK (ev_sidebar->priv->notebook), index);
 215                         gtk_label_set_text (GTK_LABEL (ev_sidebar->priv->label), title);
 216                         valid = FALSE;
 217                 } else {
 218                         valid = gtk_tree_model_iter_next (ev_sidebar->priv->page_model, &iter);
 219                 }
 220         }
 221 }
 222
 223 static void
 224 ev_sidebar_init (EvSidebar *ev_sidebar)
 225 {
 226         GtkWidget *hbox;
 227         GtkWidget *close_button;
 228         GtkWidget *select_button;
 229         GtkWidget *select_hbox;
 230         GtkWidget *arrow;
 231         GtkWidget *image;
 232
 233         ev_sidebar->priv = EV_SIDEBAR_GET_PRIVATE (ev_sidebar);
 234
 235         /* data model */
 236         ev_sidebar->priv->page_model = (GtkTreeModel *)
 237                         gtk_list_store_new (PAGE_COLUMN_NUM_COLS,
 238                                             G_TYPE_STRING,
 239                                             GTK_TYPE_WIDGET,
 240                                             GTK_TYPE_WIDGET,
 241                                             G_TYPE_INT);
 242
 243         /* top option menu */
 244         hbox = gtk_hbox_new (FALSE, 0);
 245         ev_sidebar->priv->hbox = hbox;
 246         gtk_box_pack_start (GTK_BOX (ev_sidebar), hbox, FALSE, FALSE, 0);
 247         gtk_widget_show (hbox);
 248
 249         select_button = gtk_toggle_button_new ();
 250         gtk_button_set_relief (GTK_BUTTON (select_button), GTK_RELIEF_NONE);
 251         g_signal_connect (select_button, "button_press_event",
 252                           G_CALLBACK (ev_sidebar_select_button_press_cb),
 253                           ev_sidebar);
 254         g_signal_connect (select_button, "key_press_event",
 255                           G_CALLBACK (ev_sidebar_select_button_key_press_cb),
 256                           ev_sidebar);
 257
 258         select_hbox = gtk_hbox_new (FALSE, 0);
 259
 260         ev_sidebar->priv->label = gtk_label_new ("");
 261         gtk_box_pack_start (GTK_BOX (select_hbox),
 262                             ev_sidebar->priv->label,
 263                             FALSE, FALSE, 0);
 264         gtk_widget_show (ev_sidebar->priv->label);
 265
 266         arrow = gtk_arrow_new (GTK_ARROW_DOWN, GTK_SHADOW_NONE);
 267         gtk_box_pack_end (GTK_BOX (select_hbox), arrow, FALSE, FALSE, 0);
 268         gtk_widget_show (arrow);
 269
 270         gtk_container_add (GTK_CONTAINER (select_button), select_hbox);
 271         gtk_widget_show (select_hbox);
 272
 273         gtk_box_pack_start (GTK_BOX (hbox), select_button, TRUE, TRUE, 0);
 274         gtk_widget_show (select_button);
 275
 276         close_button = gtk_button_new ();
 277         gtk_button_set_relief (GTK_BUTTON (close_button), GTK_RELIEF_NONE);
 278         g_signal_connect (close_button, "clicked",
 279                           G_CALLBACK (ev_sidebar_close_clicked_cb),
 280                           ev_sidebar);
 281
 282         image = gtk_image_new_from_stock (GTK_STOCK_CLOSE,
 283                                           GTK_ICON_SIZE_SMALL_TOOLBAR);
 284         gtk_container_add (GTK_CONTAINER (close_button), image);
 285         gtk_widget_show (image);
 286
 287         gtk_box_pack_end (GTK_BOX (hbox), close_button, FALSE, FALSE, 0);
 288         gtk_widget_show (close_button);
 289
 290         ev_sidebar->priv->menu = gtk_menu_new ();
 291         g_signal_connect (ev_sidebar->priv->menu, "deactivate",
 292                           G_CALLBACK (ev_sidebar_menu_deactivate_cb),
 293                           select_button);
 294         gtk_menu_attach_to_widget (GTK_MENU (ev_sidebar->priv->menu),
 295                                    GTK_WIDGET (ev_sidebar),
 296                                    ev_sidebar_menu_detach_cb);
 297         gtk_widget_show (ev_sidebar->priv->menu);
 298
 299         ev_sidebar->priv->notebook = gtk_notebook_new ();
 300         gtk_notebook_set_show_border (GTK_NOTEBOOK (ev_sidebar->priv->notebook), FALSE);
 301         gtk_notebook_set_show_tabs (GTK_NOTEBOOK (ev_sidebar->priv->notebook), FALSE);
 302         gtk_box_pack_start (GTK_BOX (ev_sidebar), ev_sidebar->priv->notebook,
 303                             TRUE, TRUE, 0);
 304         gtk_widget_show (ev_sidebar->priv->notebook);
 305
 306         gtk_widget_set_sensitive (GTK_WIDGET (ev_sidebar), FALSE);
 307 }
 308
 309 /* Public functions */
 310
 311 GtkWidget *
 312 ev_sidebar_new (void)
 313 {
 314         GtkWidget *ev_sidebar;
 315
 316         ev_sidebar = g_object_new (EV_TYPE_SIDEBAR, NULL);
 317
 318         return ev_sidebar;
 319 }
 320
 321 void
 322 ev_sidebar_add_page (EvSidebar   *ev_sidebar,
 323                      GtkWidget   *main_widget)
 324 {
 325         GtkTreeIter iter;
 326         GtkWidget *menu_item;
 327         gchar *label_title;
 328         const gchar *title;
 329         int index;
 330
 331         g_return_if_fail (EV_IS_SIDEBAR (ev_sidebar));
 332         g_return_if_fail (EV_IS_SIDEBAR_PAGE (main_widget));
 333         g_return_if_fail (GTK_IS_WIDGET (main_widget));
 334
 335         title = ev_sidebar_page_get_label (EV_SIDEBAR_PAGE (main_widget));
 336
 337         index = gtk_notebook_append_page (GTK_NOTEBOOK (ev_sidebar->priv->notebook),
 338                                           main_widget, NULL);
 339
 340         menu_item = gtk_image_menu_item_new_with_label (title);
 341         g_signal_connect (menu_item, "activate",
 342                           G_CALLBACK (ev_sidebar_menu_item_activate_cb),
 343                           ev_sidebar);
 344         gtk_widget_show (menu_item);
 345         gtk_menu_shell_append (GTK_MENU_SHELL (ev_sidebar->priv->menu),
 346                                menu_item);
 347
 348         gtk_list_store_insert_with_values (GTK_LIST_STORE (ev_sidebar->priv->page_model),
 349                                            &iter, 0,
 350                                            PAGE_COLUMN_TITLE, title,
 351                                            PAGE_COLUMN_MENU_ITEM, menu_item,
 352                                            PAGE_COLUMN_MAIN_WIDGET, main_widget,
 353                                            PAGE_COLUMN_NOTEBOOK_INDEX, index,
 354                                            -1);
 355
 356         /* Set the first item added as active */
 357         gtk_tree_model_get_iter_first (ev_sidebar->priv->page_model, &iter);
 358         gtk_tree_model_get (ev_sidebar->priv->page_model,
 359                             &iter,
 360                             PAGE_COLUMN_TITLE, &label_title,
 361                             PAGE_COLUMN_NOTEBOOK_INDEX, &index,
 362                             -1);
 363
 364         gtk_menu_set_active (GTK_MENU (ev_sidebar->priv->menu), index);
 365         gtk_label_set_text (GTK_LABEL (ev_sidebar->priv->label), label_title);
 366         gtk_notebook_set_current_page (GTK_NOTEBOOK (ev_sidebar->priv->notebook),
 367                                        index);
 368 }
 369
 370 void
 371 ev_sidebar_set_document (EvSidebar   *sidebar,
 372                          EvDocument  *document)
 373 {
 374         EvSidebarPrivate *priv;
 375         GtkTreeIter iter;
 376         gboolean valid;
 377         gboolean has_pages;
 378
 379         g_return_if_fail (EV_IS_SIDEBAR (sidebar));
 380         g_return_if_fail (EV_IS_DOCUMENT (document));
 381
 382         priv = sidebar->priv;
 383
 384         has_pages = FALSE;
 385
 386         for (valid = gtk_tree_model_get_iter_first (priv->page_model, &iter);
 387              valid;
 388              valid = gtk_tree_model_iter_next (priv->page_model, &iter)) {
 389                 GtkWidget *widget;
 390                 GtkWidget *menu_widget;
 391
 392                 gtk_tree_model_get (priv->page_model, &iter,
 393                                     PAGE_COLUMN_MAIN_WIDGET, &widget,
 394                                     PAGE_COLUMN_MENU_ITEM, &menu_widget,
 395                                     -1);
 396
 397
 398                 if (ev_sidebar_page_support_document (EV_SIDEBAR_PAGE (widget), document)) {
 399                                 ev_sidebar_page_set_document (EV_SIDEBAR_PAGE (widget), document);
 400                                 has_pages = TRUE;
 401                 } else {
 402                                 gtk_widget_set_sensitive (menu_widget, FALSE);
 403                 }
 404         }
 405
 406         if (!has_pages) {
 407                 gtk_widget_hide (GTK_WIDGET (sidebar));
 408         } else {
 409                 gtk_widget_set_sensitive (GTK_WIDGET (sidebar), TRUE);
 410         }
 411 }
 412