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                 gtk_widget_grab_focus (widget);
 119
 120                 gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (widget), TRUE);
 121                 gtk_menu_popup (GTK_MENU (ev_sidebar->priv->menu),
 122                                 NULL, NULL, ev_sidebar_menu_position_under, widget,
 123                                 event->button, event->time);
 124
 125                 return TRUE;
 126         }
 127
 128         return FALSE;
 129 }
 130
 131 static gboolean
 132 ev_sidebar_select_button_key_press_cb (GtkWidget   *widget,
 133                                        GdkEventKey *event,
 134                                        gpointer     user_data)
 135 {
 136         EvSidebar *ev_sidebar = EV_SIDEBAR (user_data);
 137
 138         if (event->keyval == GDK_space ||
 139             event->keyval == GDK_KP_Space ||
 140             event->keyval == GDK_Return ||
 141             event->keyval == GDK_KP_Enter) {
 142                 gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (widget), TRUE);
 143                 gtk_menu_popup (GTK_MENU (ev_sidebar->priv->menu),
 144                                 NULL, NULL, ev_sidebar_menu_position_under, widget,
 145                                 1, event->time);
 146                 return TRUE;
 147         }
 148
 149         return FALSE;
 150 }
 151
 152 static void
 153 ev_sidebar_close_clicked_cb (GtkWidget *widget,
 154                              gpointer   user_data)
 155 {
 156         EvSidebar *ev_sidebar = EV_SIDEBAR (user_data);
 157
 158         gtk_widget_hide (GTK_WIDGET (ev_sidebar));
 159 }
 160
 161 static void
 162 ev_sidebar_menu_deactivate_cb (GtkWidget *widget,
 163                                gpointer   user_data)
 164 {
 165         GtkWidget *menu_button;
 166
 167         menu_button = GTK_WIDGET (user_data);
 168
 169         gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (menu_button), FALSE);
 170 }
 171
 172 static void
 173 ev_sidebar_menu_detach_cb (GtkWidget *widget,
 174                            GtkMenu   *menu)
 175 {
 176         EvSidebar *ev_sidebar = EV_SIDEBAR (widget);
 177
 178         ev_sidebar->priv->menu = NULL;
 179 }
 180
 181 static void
 182 ev_sidebar_menu_item_activate_cb (GtkWidget *widget,
 183                                   gpointer   user_data)
 184 {
 185         EvSidebar *ev_sidebar = EV_SIDEBAR (user_data);
 186         GtkTreeIter iter;
 187         GtkWidget *menu_item, *item;
 188         gchar *title;
 189         gboolean valid;
 190         gint index;
 191
 192         menu_item = gtk_menu_get_active (GTK_MENU (ev_sidebar->priv->menu));
 193         valid = gtk_tree_model_get_iter_first (ev_sidebar->priv->page_model, &iter);
 194
 195         while (valid) {
 196                 gtk_tree_model_get (ev_sidebar->priv->page_model,
 197                                     &iter,
 198                                     PAGE_COLUMN_TITLE, &title,
 199                                     PAGE_COLUMN_MENU_ITEM, &item,
 200                                     PAGE_COLUMN_NOTEBOOK_INDEX, &index,
 201                                     -1);
 202
 203                 if (item == menu_item) {
 204                         gtk_notebook_set_current_page
 205                                 (GTK_NOTEBOOK (ev_sidebar->priv->notebook), index);
 206                         gtk_label_set_text (GTK_LABEL (ev_sidebar->priv->label), title);
 207                         valid = FALSE;
 208                 } else {
 209                         valid = gtk_tree_model_iter_next (ev_sidebar->priv->page_model, &iter);
 210                 }
 211         }
 212 }
 213
 214 static void
 215 ev_sidebar_init (EvSidebar *ev_sidebar)
 216 {
 217         GtkWidget *hbox;
 218         GtkWidget *close_button;
 219         GtkWidget *select_button;
 220         GtkWidget *select_hbox;
 221         GtkWidget *arrow;
 222         GtkWidget *image;
 223
 224         ev_sidebar->priv = EV_SIDEBAR_GET_PRIVATE (ev_sidebar);
 225
 226         /* data model */
 227         ev_sidebar->priv->page_model = (GtkTreeModel *)
 228                         gtk_list_store_new (PAGE_COLUMN_NUM_COLS,
 229                                             G_TYPE_STRING,
 230                                             GTK_TYPE_WIDGET,
 231                                             GTK_TYPE_WIDGET,
 232                                             G_TYPE_INT);
 233
 234         /* top option menu */
 235         hbox = gtk_hbox_new (FALSE, 0);
 236         ev_sidebar->priv->hbox = hbox;
 237         gtk_box_pack_start (GTK_BOX (ev_sidebar), hbox, FALSE, FALSE, 0);
 238         gtk_widget_show (hbox);
 239
 240         select_button = gtk_toggle_button_new ();
 241         gtk_button_set_relief (GTK_BUTTON (select_button), GTK_RELIEF_NONE);
 242         g_signal_connect (select_button, "button_press_event",
 243                           G_CALLBACK (ev_sidebar_select_button_press_cb),
 244                           ev_sidebar);
 245         g_signal_connect (select_button, "key_press_event",
 246                           G_CALLBACK (ev_sidebar_select_button_key_press_cb),
 247                           ev_sidebar);
 248
 249         select_hbox = gtk_hbox_new (FALSE, 0);
 250
 251         ev_sidebar->priv->label = gtk_label_new ("");
 252         gtk_box_pack_start (GTK_BOX (select_hbox),
 253                             ev_sidebar->priv->label,
 254                             FALSE, FALSE, 0);
 255         gtk_widget_show (ev_sidebar->priv->label);
 256
 257         arrow = gtk_arrow_new (GTK_ARROW_DOWN, GTK_SHADOW_NONE);
 258         gtk_box_pack_end (GTK_BOX (select_hbox), arrow, FALSE, FALSE, 0);
 259         gtk_widget_show (arrow);
 260
 261         gtk_container_add (GTK_CONTAINER (select_button), select_hbox);
 262         gtk_widget_show (select_hbox);
 263
 264         gtk_box_pack_start (GTK_BOX (hbox), select_button, TRUE, TRUE, 0);
 265         gtk_widget_show (select_button);
 266
 267         close_button = gtk_button_new ();
 268         gtk_button_set_relief (GTK_BUTTON (close_button), GTK_RELIEF_NONE);
 269         g_signal_connect (close_button, "clicked",
 270                           G_CALLBACK (ev_sidebar_close_clicked_cb),
 271                           ev_sidebar);
 272
 273         image = gtk_image_new_from_stock (GTK_STOCK_CLOSE,
 274                                           GTK_ICON_SIZE_SMALL_TOOLBAR);
 275         gtk_container_add (GTK_CONTAINER (close_button), image);
 276         gtk_widget_show (image);
 277
 278         gtk_box_pack_end (GTK_BOX (hbox), close_button, FALSE, FALSE, 0);
 279         gtk_widget_show (close_button);
 280
 281         ev_sidebar->priv->menu = gtk_menu_new ();
 282         g_signal_connect (ev_sidebar->priv->menu, "deactivate",
 283                           G_CALLBACK (ev_sidebar_menu_deactivate_cb),
 284                           select_button);
 285         gtk_menu_attach_to_widget (GTK_MENU (ev_sidebar->priv->menu),
 286                                    GTK_WIDGET (ev_sidebar),
 287                                    ev_sidebar_menu_detach_cb);
 288         gtk_widget_show (ev_sidebar->priv->menu);
 289
 290         ev_sidebar->priv->notebook = gtk_notebook_new ();
 291         gtk_notebook_set_show_border (GTK_NOTEBOOK (ev_sidebar->priv->notebook), FALSE);
 292         gtk_notebook_set_show_tabs (GTK_NOTEBOOK (ev_sidebar->priv->notebook), FALSE);
 293         gtk_box_pack_start (GTK_BOX (ev_sidebar), ev_sidebar->priv->notebook,
 294                             TRUE, TRUE, 0);
 295         gtk_widget_show (ev_sidebar->priv->notebook);
 296
 297         gtk_widget_set_sensitive (GTK_WIDGET (ev_sidebar), FALSE);
 298 }
 299
 300 /* Public functions */
 301
 302 GtkWidget *
 303 ev_sidebar_new (void)
 304 {
 305         GtkWidget *ev_sidebar;
 306
 307         ev_sidebar = g_object_new (EV_TYPE_SIDEBAR, NULL);
 308
 309         return ev_sidebar;
 310 }
 311
 312 void
 313 ev_sidebar_add_page (EvSidebar   *ev_sidebar,
 314                      GtkWidget   *main_widget)
 315 {
 316         GtkTreeIter iter;
 317         GtkWidget *menu_item;
 318         gchar *label_title;
 319         const gchar *title;
 320         int index;
 321
 322         g_return_if_fail (EV_IS_SIDEBAR (ev_sidebar));
 323         g_return_if_fail (EV_IS_SIDEBAR_PAGE (main_widget));
 324         g_return_if_fail (GTK_IS_WIDGET (main_widget));
 325
 326         title = ev_sidebar_page_get_label (EV_SIDEBAR_PAGE (main_widget));
 327
 328         index = gtk_notebook_append_page (GTK_NOTEBOOK (ev_sidebar->priv->notebook),
 329                                           main_widget, NULL);
 330
 331         menu_item = gtk_image_menu_item_new_with_label (title);
 332         g_signal_connect (menu_item, "activate",
 333                           G_CALLBACK (ev_sidebar_menu_item_activate_cb),
 334                           ev_sidebar);
 335         gtk_widget_show (menu_item);
 336         gtk_menu_shell_append (GTK_MENU_SHELL (ev_sidebar->priv->menu),
 337                                menu_item);
 338
 339         gtk_list_store_insert_with_values (GTK_LIST_STORE (ev_sidebar->priv->page_model),
 340                                            &iter, 0,
 341                                            PAGE_COLUMN_TITLE, title,
 342                                            PAGE_COLUMN_MENU_ITEM, menu_item,
 343                                            PAGE_COLUMN_MAIN_WIDGET, main_widget,
 344                                            PAGE_COLUMN_NOTEBOOK_INDEX, index,
 345                                            -1);
 346
 347         /* Set the first item added as active */
 348         gtk_tree_model_get_iter_first (ev_sidebar->priv->page_model, &iter);
 349         gtk_tree_model_get (ev_sidebar->priv->page_model,
 350                             &iter,
 351                             PAGE_COLUMN_TITLE, &label_title,
 352                             PAGE_COLUMN_NOTEBOOK_INDEX, &index,
 353                             -1);
 354
 355         gtk_menu_set_active (GTK_MENU (ev_sidebar->priv->menu), index);
 356         gtk_label_set_text (GTK_LABEL (ev_sidebar->priv->label), label_title);
 357         gtk_notebook_set_current_page (GTK_NOTEBOOK (ev_sidebar->priv->notebook),
 358                                        index);
 359 }
 360
 361 void
 362 ev_sidebar_set_document (EvSidebar   *sidebar,
 363                          EvDocument  *document)
 364 {
 365         EvSidebarPrivate *priv;
 366         GtkTreeIter iter;
 367         gboolean valid;
 368         gboolean has_pages;
 369
 370         g_return_if_fail (EV_IS_SIDEBAR (sidebar));
 371         g_return_if_fail (EV_IS_DOCUMENT (document));
 372
 373         priv = sidebar->priv;
 374
 375         has_pages = FALSE;
 376
 377         for (valid = gtk_tree_model_get_iter_first (priv->page_model, &iter);
 378              valid;
 379              valid = gtk_tree_model_iter_next (priv->page_model, &iter)) {
 380                 GtkWidget *widget;
 381                 GtkWidget *menu_widget;
 382
 383                 gtk_tree_model_get (priv->page_model, &iter,
 384                                     PAGE_COLUMN_MAIN_WIDGET, &widget,
 385                                     PAGE_COLUMN_MENU_ITEM, &menu_widget,
 386                                     -1);
 387
 388
 389                 if (ev_sidebar_page_support_document (EV_SIDEBAR_PAGE (widget), document)) {
 390                                 ev_sidebar_page_set_document (EV_SIDEBAR_PAGE (widget), document);
 391                                 has_pages = TRUE;
 392                 } else {
 393                                 gtk_widget_set_sensitive (menu_widget, FALSE);
 394                 }
 395         }
 396
 397         if (!has_pages) {
 398                 gtk_widget_hide (GTK_WIDGET (sidebar));
 399         } else {
 400                 gtk_widget_set_sensitive (GTK_WIDGET (sidebar), TRUE);
 401         }
 402 }
 403