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         if (ev_sidebar->priv->page_model) {
  70                 g_object_unref (ev_sidebar->priv->page_model);
  71                 ev_sidebar->priv->page_model = NULL;
  72         }
  73
  74
  75         (* GTK_OBJECT_CLASS (ev_sidebar_parent_class)->destroy) (object);
  76 }
  77
  78 static void
  79 ev_sidebar_class_init (EvSidebarClass *ev_sidebar_class)
  80 {
  81         GObjectClass *g_object_class;
  82         GtkWidgetClass *widget_class;
  83         GtkObjectClass *gtk_object_klass;
  84
  85         g_object_class = G_OBJECT_CLASS (ev_sidebar_class);
  86         widget_class = GTK_WIDGET_CLASS (ev_sidebar_class);
  87         gtk_object_klass = GTK_OBJECT_CLASS (ev_sidebar_class);
  88
  89         g_type_class_add_private (g_object_class, sizeof (EvSidebarPrivate));
  90
  91         gtk_object_klass->destroy = ev_sidebar_destroy;
  92 }
  93
  94 static void
  95 ev_sidebar_menu_position_under (GtkMenu  *menu,
  96                                 int      *x,
  97                                 int      *y,
  98                                 gboolean *push_in,
  99                                 gpointer  user_data)
 100 {
 101         GtkWidget *widget;
 102
 103         g_return_if_fail (GTK_IS_BUTTON (user_data));
 104         g_return_if_fail (GTK_WIDGET_NO_WINDOW (user_data));
 105
 106         widget = GTK_WIDGET (user_data);
 107
 108         gdk_window_get_origin (widget->window, x, y);
 109
 110         *x += widget->allocation.x;
 111         *y += widget->allocation.y + widget->allocation.height;
 112
 113         *push_in = FALSE;
 114 }
 115
 116 static gboolean
 117 ev_sidebar_select_button_press_cb (GtkWidget      *widget,
 118                                    GdkEventButton *event,
 119                                    gpointer        user_data)
 120 {
 121         EvSidebar *ev_sidebar = EV_SIDEBAR (user_data);
 122
 123         if (event->button == 1) {
 124                 GtkRequisition requisition;
 125                 gint width;
 126
 127                 width = widget->allocation.width;
 128                 gtk_widget_set_size_request (ev_sidebar->priv->menu, -1, -1);
 129                 gtk_widget_size_request (ev_sidebar->priv->menu, &requisition);
 130                 gtk_widget_set_size_request (ev_sidebar->priv->menu,
 131                                              MAX (width, requisition.width), -1);
 132
 133                 gtk_widget_grab_focus (widget);
 134
 135                 gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (widget), TRUE);
 136                 gtk_menu_popup (GTK_MENU (ev_sidebar->priv->menu),
 137                                 NULL, NULL, ev_sidebar_menu_position_under, widget,
 138                                 event->button, event->time);
 139
 140                 return TRUE;
 141         }
 142
 143         return FALSE;
 144 }
 145
 146 static gboolean
 147 ev_sidebar_select_button_key_press_cb (GtkWidget   *widget,
 148                                        GdkEventKey *event,
 149                                        gpointer     user_data)
 150 {
 151         EvSidebar *ev_sidebar = EV_SIDEBAR (user_data);
 152
 153         if (event->keyval == GDK_space ||
 154             event->keyval == GDK_KP_Space ||
 155             event->keyval == GDK_Return ||
 156             event->keyval == GDK_KP_Enter) {
 157                 gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (widget), TRUE);
 158                 gtk_menu_popup (GTK_MENU (ev_sidebar->priv->menu),
 159                                 NULL, NULL, ev_sidebar_menu_position_under, widget,
 160                                 1, event->time);
 161                 return TRUE;
 162         }
 163
 164         return FALSE;
 165 }
 166
 167 static void
 168 ev_sidebar_close_clicked_cb (GtkWidget *widget,
 169                              gpointer   user_data)
 170 {
 171         EvSidebar *ev_sidebar = EV_SIDEBAR (user_data);
 172
 173         gtk_widget_hide (GTK_WIDGET (ev_sidebar));
 174 }
 175
 176 static void
 177 ev_sidebar_menu_deactivate_cb (GtkWidget *widget,
 178                                gpointer   user_data)
 179 {
 180         GtkWidget *menu_button;
 181
 182         menu_button = GTK_WIDGET (user_data);
 183
 184         gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (menu_button), FALSE);
 185 }
 186
 187 static void
 188 ev_sidebar_menu_detach_cb (GtkWidget *widget,
 189                            GtkMenu   *menu)
 190 {
 191         EvSidebar *ev_sidebar = EV_SIDEBAR (widget);
 192
 193         ev_sidebar->priv->menu = NULL;
 194 }
 195
 196 static void
 197 ev_sidebar_menu_item_activate_cb (GtkWidget *widget,
 198                                   gpointer   user_data)
 199 {
 200         EvSidebar *ev_sidebar = EV_SIDEBAR (user_data);
 201         GtkTreeIter iter;
 202         GtkWidget *menu_item, *item;
 203         gchar *title;
 204         gboolean valid;
 205         gint index;
 206
 207         menu_item = gtk_menu_get_active (GTK_MENU (ev_sidebar->priv->menu));
 208         valid = gtk_tree_model_get_iter_first (ev_sidebar->priv->page_model, &iter);
 209
 210         while (valid) {
 211                 gtk_tree_model_get (ev_sidebar->priv->page_model,
 212                                     &iter,
 213                                     PAGE_COLUMN_TITLE, &title,
 214                                     PAGE_COLUMN_MENU_ITEM, &item,
 215                                     PAGE_COLUMN_NOTEBOOK_INDEX, &index,
 216                                     -1);
 217
 218                 if (item == menu_item) {
 219                         gtk_notebook_set_current_page
 220                                 (GTK_NOTEBOOK (ev_sidebar->priv->notebook), index);
 221                         gtk_label_set_text (GTK_LABEL (ev_sidebar->priv->label), title);
 222                         valid = FALSE;
 223                 } else {
 224                         valid = gtk_tree_model_iter_next (ev_sidebar->priv->page_model, &iter);
 225                 }
 226                 g_object_unref (item);
 227                 g_free (title);
 228         }
 229 }
 230
 231 static void
 232 ev_sidebar_init (EvSidebar *ev_sidebar)
 233 {
 234         GtkWidget *hbox;
 235         GtkWidget *close_button;
 236         GtkWidget *select_button;
 237         GtkWidget *select_hbox;
 238         GtkWidget *arrow;
 239         GtkWidget *image;
 240
 241         ev_sidebar->priv = EV_SIDEBAR_GET_PRIVATE (ev_sidebar);
 242
 243         /* data model */
 244         ev_sidebar->priv->page_model = (GtkTreeModel *)
 245                         gtk_list_store_new (PAGE_COLUMN_NUM_COLS,
 246                                             G_TYPE_STRING,
 247                                             GTK_TYPE_WIDGET,
 248                                             GTK_TYPE_WIDGET,
 249                                             G_TYPE_INT);
 250
 251         /* top option menu */
 252         hbox = gtk_hbox_new (FALSE, 0);
 253         ev_sidebar->priv->hbox = hbox;
 254         gtk_box_pack_start (GTK_BOX (ev_sidebar), hbox, FALSE, FALSE, 0);
 255         gtk_widget_show (hbox);
 256
 257         select_button = gtk_toggle_button_new ();
 258         gtk_button_set_relief (GTK_BUTTON (select_button), GTK_RELIEF_NONE);
 259         g_signal_connect (select_button, "button_press_event",
 260                           G_CALLBACK (ev_sidebar_select_button_press_cb),
 261                           ev_sidebar);
 262         g_signal_connect (select_button, "key_press_event",
 263                           G_CALLBACK (ev_sidebar_select_button_key_press_cb),
 264                           ev_sidebar);
 265
 266         select_hbox = gtk_hbox_new (FALSE, 0);
 267
 268         ev_sidebar->priv->label = gtk_label_new ("");
 269         gtk_box_pack_start (GTK_BOX (select_hbox),
 270                             ev_sidebar->priv->label,
 271                             FALSE, FALSE, 0);
 272         gtk_widget_show (ev_sidebar->priv->label);
 273
 274         arrow = gtk_arrow_new (GTK_ARROW_DOWN, GTK_SHADOW_NONE);
 275         gtk_box_pack_end (GTK_BOX (select_hbox), arrow, FALSE, FALSE, 0);
 276         gtk_widget_show (arrow);
 277
 278         gtk_container_add (GTK_CONTAINER (select_button), select_hbox);
 279         gtk_widget_show (select_hbox);
 280
 281         gtk_box_pack_start (GTK_BOX (hbox), select_button, TRUE, TRUE, 0);
 282         gtk_widget_show (select_button);
 283
 284         close_button = gtk_button_new ();
 285         gtk_button_set_relief (GTK_BUTTON (close_button), GTK_RELIEF_NONE);
 286         g_signal_connect (close_button, "clicked",
 287                           G_CALLBACK (ev_sidebar_close_clicked_cb),
 288                           ev_sidebar);
 289
 290         image = gtk_image_new_from_stock (GTK_STOCK_CLOSE,
 291                                           GTK_ICON_SIZE_SMALL_TOOLBAR);
 292         gtk_container_add (GTK_CONTAINER (close_button), image);
 293         gtk_widget_show (image);
 294
 295         gtk_box_pack_end (GTK_BOX (hbox), close_button, FALSE, FALSE, 0);
 296         gtk_widget_show (close_button);
 297
 298         ev_sidebar->priv->menu = gtk_menu_new ();
 299         g_signal_connect (ev_sidebar->priv->menu, "deactivate",
 300                           G_CALLBACK (ev_sidebar_menu_deactivate_cb),
 301                           select_button);
 302         gtk_menu_attach_to_widget (GTK_MENU (ev_sidebar->priv->menu),
 303                                    GTK_WIDGET (ev_sidebar),
 304                                    ev_sidebar_menu_detach_cb);
 305         gtk_widget_show (ev_sidebar->priv->menu);
 306
 307         ev_sidebar->priv->notebook = gtk_notebook_new ();
 308         gtk_notebook_set_show_border (GTK_NOTEBOOK (ev_sidebar->priv->notebook), FALSE);
 309         gtk_notebook_set_show_tabs (GTK_NOTEBOOK (ev_sidebar->priv->notebook), FALSE);
 310         gtk_box_pack_start (GTK_BOX (ev_sidebar), ev_sidebar->priv->notebook,
 311                             TRUE, TRUE, 0);
 312         gtk_widget_show (ev_sidebar->priv->notebook);
 313
 314         gtk_widget_set_sensitive (GTK_WIDGET (ev_sidebar), FALSE);
 315 }
 316
 317 /* Public functions */
 318
 319 GtkWidget *
 320 ev_sidebar_new (void)
 321 {
 322         GtkWidget *ev_sidebar;
 323
 324         ev_sidebar = g_object_new (EV_TYPE_SIDEBAR, NULL);
 325
 326         return ev_sidebar;
 327 }
 328
 329 void
 330 ev_sidebar_add_page (EvSidebar   *ev_sidebar,
 331                      GtkWidget   *main_widget)
 332 {
 333         GtkTreeIter iter;
 334         GtkWidget *menu_item;
 335         gchar *label_title;
 336         const gchar *title;
 337         int index;
 338
 339         g_return_if_fail (EV_IS_SIDEBAR (ev_sidebar));
 340         g_return_if_fail (EV_IS_SIDEBAR_PAGE (main_widget));
 341         g_return_if_fail (GTK_IS_WIDGET (main_widget));
 342
 343         title = ev_sidebar_page_get_label (EV_SIDEBAR_PAGE (main_widget));
 344
 345         index = gtk_notebook_append_page (GTK_NOTEBOOK (ev_sidebar->priv->notebook),
 346                                           main_widget, NULL);
 347
 348         menu_item = gtk_image_menu_item_new_with_label (title);
 349         g_signal_connect (menu_item, "activate",
 350                           G_CALLBACK (ev_sidebar_menu_item_activate_cb),
 351                           ev_sidebar);
 352         gtk_widget_show (menu_item);
 353         gtk_menu_shell_append (GTK_MENU_SHELL (ev_sidebar->priv->menu),
 354                                menu_item);
 355
 356         gtk_list_store_insert_with_values (GTK_LIST_STORE (ev_sidebar->priv->page_model),
 357                                            &iter, 0,
 358                                            PAGE_COLUMN_TITLE, title,
 359                                            PAGE_COLUMN_MENU_ITEM, menu_item,
 360                                            PAGE_COLUMN_MAIN_WIDGET, main_widget,
 361                                            PAGE_COLUMN_NOTEBOOK_INDEX, index,
 362                                            -1);
 363
 364         /* Set the first item added as active */
 365         gtk_tree_model_get_iter_first (ev_sidebar->priv->page_model, &iter);
 366         gtk_tree_model_get (ev_sidebar->priv->page_model,
 367                             &iter,
 368                             PAGE_COLUMN_TITLE, &label_title,
 369                             PAGE_COLUMN_NOTEBOOK_INDEX, &index,
 370                             -1);
 371
 372         gtk_menu_set_active (GTK_MENU (ev_sidebar->priv->menu), index);
 373         gtk_label_set_text (GTK_LABEL (ev_sidebar->priv->label), label_title);
 374         gtk_notebook_set_current_page (GTK_NOTEBOOK (ev_sidebar->priv->notebook),
 375                                        index);
 376         g_free (label_title);
 377 }
 378
 379 void
 380 ev_sidebar_set_document (EvSidebar   *sidebar,
 381                          EvDocument  *document)
 382 {
 383         EvSidebarPrivate *priv;
 384         GtkTreeIter iter;
 385         gboolean valid;
 386         gboolean has_pages;
 387
 388         g_return_if_fail (EV_IS_SIDEBAR (sidebar));
 389         g_return_if_fail (EV_IS_DOCUMENT (document));
 390
 391         priv = sidebar->priv;
 392
 393         has_pages = FALSE;
 394
 395         for (valid = gtk_tree_model_get_iter_first (priv->page_model, &iter);
 396              valid;
 397              valid = gtk_tree_model_iter_next (priv->page_model, &iter)) {
 398                 GtkWidget *widget;
 399                 GtkWidget *menu_widget;
 400
 401                 gtk_tree_model_get (priv->page_model, &iter,
 402                                     PAGE_COLUMN_MAIN_WIDGET, &widget,
 403                                     PAGE_COLUMN_MENU_ITEM, &menu_widget,
 404                                     -1);
 405
 406
 407                 if (ev_sidebar_page_support_document (EV_SIDEBAR_PAGE (widget), document)) {
 408                                 ev_sidebar_page_set_document (EV_SIDEBAR_PAGE (widget), document);
 409                                 has_pages = TRUE;
 410                 } else {
 411                                 gtk_widget_set_sensitive (menu_widget, FALSE);
 412                 }
 413                 g_object_unref (widget);
 414                 g_object_unref (menu_widget);
 415         }
 416
 417         if (!has_pages) {
 418                 gtk_widget_hide (GTK_WIDGET (sidebar));
 419         } else {
 420                 gtk_widget_set_sensitive (GTK_WIDGET (sidebar), TRUE);
 421         }
 422 }
 423