src/.svn/text-base/ephy-tabs-menu.c.svn-base

   1 /*
   2  *  Copyright © 2003  David Bordoley
   3  *  Copyright © 2003-2004 Christian Persch
   4  *
   5  *  This program is free software; you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation; either version 2, or (at your option)
   8  *  any later version.
   9  *
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with this program; if not, write to the Free Software
  17  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  *
  19  *  $Id$
  20  */
  21
  22 #include "config.h"
  23
  24 #include "ephy-tabs-menu.h"
  25 #include "ephy-notebook.h"
  26 #include "ephy-marshal.h"
  27 #include "ephy-shell.h"
  28 #include "ephy-debug.h"
  29
  30 #include <glib/gi18n.h>
  31 #include <gtk/gtklabel.h>
  32 #include <gtk/gtkmenuitem.h>
  33 #include <gtk/gtkaccelmap.h>
  34 #include <gtk/gtkaction.h>
  35 #include <gtk/gtktoggleaction.h>
  36 #include <gtk/gtkradioaction.h>
  37 #include <gtk/gtkuimanager.h>
  38 #include <string.h>
  39 #include <stdlib.h>
  40 #include <libxml/entities.h>
  41
  42 #define LABEL_WIDTH_CHARS 32
  43 #define ACTION_VERB_FORMAT              "JmpTab%x"
  44 #define ACTION_VERB_FORMAT_LENGTH       strlen (ACTION_VERB_FORMAT) + 14 + 1
  45 #define ACCEL_PATH_FORMAT               "<Actions>/TabsActions/%s"
  46 #define ACCEL_PATH_FORMAT_LENGTH        strlen (ACCEL_PATH_FORMAT) -2 + ACTION_VERB_FORMAT_LENGTH
  47 #define DATA_KEY                        "EphyTabsMenu::Action"
  48
  49 #define EPHY_TABS_MENU_GET_PRIVATE(object)(G_TYPE_INSTANCE_GET_PRIVATE ((object), EPHY_TYPE_TABS_MENU, EphyTabsMenuPrivate))
  50
  51 struct _EphyTabsMenuPrivate
  52 {
  53         EphyWindow *window;
  54         GtkActionGroup *action_group;
  55         GtkAction *anchor_action;
  56         guint ui_id;
  57 };
  58
  59 enum
  60 {
  61         PROP_0,
  62         PROP_WINDOW
  63 };
  64
  65 static void     ephy_tabs_menu_class_init       (EphyTabsMenuClass *klass);
  66 static void     ephy_tabs_menu_init             (EphyTabsMenu *menu);
  67
  68 GType
  69 ephy_tabs_menu_get_type (void)
  70 {
  71         static GType type = 0;
  72
  73         if (G_UNLIKELY (type == 0))
  74         {
  75                 const GTypeInfo our_info =
  76                 {
  77                         sizeof (EphyTabsMenuClass),
  78                         NULL, /* base_init */
  79                         NULL, /* base_finalize */
  80                         (GClassInitFunc) ephy_tabs_menu_class_init,
  81                         NULL,
  82                         NULL, /* class_data */
  83                         sizeof (EphyTab),
  84                         0, /* n_preallocs */
  85                         (GInstanceInitFunc) ephy_tabs_menu_init
  86                 };
  87
  88                 type = g_type_register_static (G_TYPE_OBJECT,
  89                                                "EphyTabsMenu",
  90                                                &our_info, 0);
  91         }
  92
  93         return type;
  94 }
  95
  96 static void
  97 tab_action_activate_cb (GtkToggleAction *action,
  98                         EphyTabsMenu *menu)
  99 {
 100         EphyTabsMenuPrivate *priv = menu->priv;
 101         EphyTab *tab;
 102
 103         if (gtk_toggle_action_get_active (action) == FALSE)
 104         {
 105                 return;
 106         }
 107
 108         tab = g_object_get_data (G_OBJECT (action), DATA_KEY);
 109         g_return_if_fail (tab != NULL);
 110
 111         LOG ("tab_action_activate_cb tab=%p", tab);
 112
 113         if (ephy_window_get_active_tab (priv->window) != tab)
 114         {
 115                 ephy_window_jump_to_tab (priv->window, tab);
 116         }
 117 }
 118
 119 static void
 120 sync_tab_title (EphyTab *tab,
 121                 GParamSpec *pspec,
 122                 GtkAction *action)
 123 {
 124         const char *title;
 125
 126         title = ephy_tab_get_title_composite (tab);
 127
 128         g_object_set (action, "label", title, NULL);
 129 }
 130
 131 static void
 132 notebook_page_added_cb (EphyNotebook *notebook,
 133                         EphyTab *tab,
 134                         guint position,
 135                         EphyTabsMenu *menu)
 136 {
 137         EphyTabsMenuPrivate *priv = menu->priv;
 138         GtkAction *action;
 139         char verb[ACTION_VERB_FORMAT_LENGTH];
 140         GSList *group;
 141
 142         LOG ("tab_added_cb tab=%p", tab);
 143
 144         g_snprintf (verb, sizeof (verb), ACTION_VERB_FORMAT,
 145                     _ephy_tab_get_id (tab));
 146
 147         action = g_object_new (GTK_TYPE_RADIO_ACTION,
 148                                "name", verb,
 149                                "tooltip", _("Switch to this tab"),
 150                                NULL);
 151
 152         sync_tab_title (tab, NULL, action);
 153         /* make sure the action is alive when handling the signal, see bug #169833 */
 154         g_signal_connect_object (tab, "notify::title",
 155                                  G_CALLBACK (sync_tab_title), action, 0);
 156
 157         gtk_action_group_add_action_with_accel (priv->action_group, action, NULL);
 158
 159         group = gtk_radio_action_get_group (GTK_RADIO_ACTION (priv->anchor_action));
 160         gtk_radio_action_set_group (GTK_RADIO_ACTION (action), group);
 161
 162         /* set this here too, since tab-added comes after notify::active-tab */
 163         if (ephy_window_get_active_tab (priv->window) == tab)
 164         {
 165                 gtk_toggle_action_set_active (GTK_TOGGLE_ACTION (action), TRUE);
 166         }
 167
 168         g_object_set_data (G_OBJECT (tab), DATA_KEY, action);
 169         g_object_set_data (G_OBJECT (action), DATA_KEY, tab);
 170
 171         g_signal_connect (action, "activate",
 172                           G_CALLBACK (tab_action_activate_cb), menu);
 173
 174         g_object_unref (action);
 175
 176         ephy_tabs_menu_update (menu);
 177 }
 178
 179 static void
 180 notebook_page_removed_cb (EphyNotebook *notebook,
 181                           EphyTab *tab,
 182                           guint position,
 183                           EphyTabsMenu *menu)
 184 {
 185         EphyTabsMenuPrivate *priv = menu->priv;
 186         GtkAction *action;
 187
 188         LOG ("tab_removed_cb tab=%p", tab);
 189
 190         action = g_object_get_data (G_OBJECT (tab), DATA_KEY);
 191         g_return_if_fail (action != NULL);
 192
 193         g_signal_handlers_disconnect_by_func
 194                 (tab, G_CALLBACK (sync_tab_title), action);
 195
 196         g_signal_handlers_disconnect_by_func
 197                 (action, G_CALLBACK (tab_action_activate_cb), menu);
 198
 199         g_object_set_data (G_OBJECT (tab), DATA_KEY, NULL);
 200         gtk_action_group_remove_action (priv->action_group, action);
 201
 202         ephy_tabs_menu_update (menu);
 203 }
 204
 205 static void
 206 notebook_page_reordered_cb (EphyNotebook *notebook,
 207                             EphyTab *tab,
 208                             guint position,
 209                             EphyTabsMenu *menu)
 210 {
 211         LOG ("tabs_reordered_cb");
 212
 213         ephy_tabs_menu_update (menu);
 214 }
 215
 216 static void
 217 connect_proxy_cb (GtkActionGroup *action_group,
 218                   GtkAction *action,
 219                   GtkWidget *proxy,
 220                   gpointer dummy)
 221 {
 222         if (GTK_IS_MENU_ITEM (proxy))
 223         {
 224                 GtkLabel *label;
 225
 226                 label = GTK_LABEL (GTK_BIN (proxy)->child);
 227
 228                 gtk_label_set_use_underline (label, FALSE);
 229                 gtk_label_set_ellipsize (label, PANGO_ELLIPSIZE_END);
 230                 gtk_label_set_max_width_chars (label, LABEL_WIDTH_CHARS);
 231         }
 232 }
 233
 234 static void
 235 sync_active_tab (EphyWindow *window,
 236                  GParamSpec *pspec,
 237                  EphyTabsMenu *menu)
 238 {
 239         EphyTab *tab;
 240         GtkAction *action;
 241
 242         tab = ephy_window_get_active_tab (window);
 243         if (tab == NULL) return;
 244
 245         LOG ("active tab is tab %p", tab);
 246
 247         action = g_object_get_data (G_OBJECT (tab), DATA_KEY);
 248         /* happens initially, since the ::active-tab comes before
 249         * the ::tab-added signal
 250         */
 251         /* FIXME that's not true with gtk+ 2.9 anymore */
 252         if (action == NULL) return;
 253
 254         gtk_toggle_action_set_active (GTK_TOGGLE_ACTION (action), TRUE);
 255 }
 256
 257 static void
 258 ephy_tabs_menu_set_window (EphyTabsMenu *menu,
 259                            EphyWindow *window)
 260 {
 261         EphyTabsMenuPrivate *priv = menu->priv;
 262         GtkWidget *notebook;
 263         GtkUIManager *manager;
 264
 265         priv->window = window;
 266
 267         manager = GTK_UI_MANAGER (ephy_window_get_ui_manager (window));
 268         priv->action_group = gtk_action_group_new ("TabsActions");
 269         gtk_ui_manager_insert_action_group (manager, priv->action_group, -1);
 270         g_object_unref (priv->action_group);
 271
 272         priv->anchor_action = g_object_new (GTK_TYPE_RADIO_ACTION,
 273                                             "name", "TabsMenuAnchorAction",
 274                                             NULL);
 275         gtk_action_group_add_action (priv->action_group, priv->anchor_action);
 276
 277         g_signal_connect (priv->action_group, "connect-proxy",
 278                           G_CALLBACK (connect_proxy_cb), NULL);
 279
 280         g_signal_connect (window, "notify::active-tab",
 281                           G_CALLBACK (sync_active_tab), menu);
 282
 283         notebook = ephy_window_get_notebook (window);
 284         g_signal_connect_object (notebook, "page-added",
 285                                  G_CALLBACK (notebook_page_added_cb), menu, 0);
 286         g_signal_connect_object (notebook, "page-removed",
 287                                  G_CALLBACK (notebook_page_removed_cb), menu, 0);
 288         g_signal_connect_object (notebook, "page-reordered",
 289                                  G_CALLBACK (notebook_page_reordered_cb), menu, 0);
 290 }
 291
 292 static void
 293 ephy_tabs_menu_set_property (GObject *object,
 294                              guint prop_id,
 295                              const GValue *value,
 296                              GParamSpec *pspec)
 297 {
 298         EphyTabsMenu *menu = EPHY_TABS_MENU (object);
 299
 300         switch (prop_id)
 301         {
 302                 case PROP_WINDOW:
 303                         ephy_tabs_menu_set_window (menu, g_value_get_object (value));
 304                         break;
 305         }
 306 }
 307
 308 static void
 309 ephy_tabs_menu_get_property (GObject *object,
 310                              guint prop_id,
 311                              GValue *value,
 312                              GParamSpec *pspec)
 313 {
 314         /* no readable properties */
 315         g_return_if_reached ();
 316 }
 317
 318 static void
 319 ephy_tabs_menu_class_init (EphyTabsMenuClass *klass)
 320 {
 321         GObjectClass *object_class = G_OBJECT_CLASS (klass);
 322
 323         object_class->set_property = ephy_tabs_menu_set_property;
 324         object_class->get_property = ephy_tabs_menu_get_property;
 325
 326         g_object_class_install_property (object_class,
 327                                          PROP_WINDOW,
 328                                          g_param_spec_object ("window",
 329                                                               "Window",
 330                                                               "Parent window",
 331                                                               EPHY_TYPE_WINDOW,
 332                                                               G_PARAM_READWRITE | G_PARAM_STATIC_NAME | G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB |
 333                                                               G_PARAM_CONSTRUCT_ONLY));
 334
 335         g_type_class_add_private (object_class, sizeof (EphyTabsMenuPrivate));
 336 }
 337
 338 static void
 339 ephy_tabs_menu_init (EphyTabsMenu *menu)
 340 {
 341         menu->priv = EPHY_TABS_MENU_GET_PRIVATE (menu);
 342 }
 343
 344 static void
 345 ephy_tabs_menu_clean (EphyTabsMenu *menu)
 346 {
 347         EphyTabsMenuPrivate *p = menu->priv;
 348         GtkUIManager *manager = GTK_UI_MANAGER (ephy_window_get_ui_manager (p->window));
 349
 350         if (p->ui_id != 0)
 351         {
 352                 gtk_ui_manager_remove_ui (manager, p->ui_id);
 353                 gtk_ui_manager_ensure_update (manager);
 354                 p->ui_id = 0;
 355         }
 356 }
 357
 358 EphyTabsMenu *
 359 ephy_tabs_menu_new (EphyWindow *window)
 360 {
 361         return EPHY_TABS_MENU (g_object_new (EPHY_TYPE_TABS_MENU,
 362                                              "window", window,
 363                                              NULL));
 364 }
 365
 366 static void
 367 tab_set_action_accelerator (GtkActionGroup *action_group,
 368                             GtkAction *action,
 369                             guint tab_number)
 370 {
 371         const char *verb;
 372         char accel_path[ACCEL_PATH_FORMAT_LENGTH];
 373         char accel[7];
 374         gint accel_number;
 375         guint accel_key;
 376         GdkModifierType accel_mods;
 377
 378         verb = gtk_action_get_name (action);
 379
 380         /* set the accel path for the menu item */
 381         g_snprintf (accel_path, sizeof (accel_path),
 382                     ACCEL_PATH_FORMAT, verb);
 383         gtk_action_set_accel_path (action, accel_path);
 384
 385         /* Only the first ten tabs get accelerators starting from 1 through 0 */
 386         if (tab_number < 10)
 387         {
 388                 accel_key = 0;
 389                 accel_number = (tab_number + 1) % 10;
 390
 391                 g_snprintf (accel, sizeof (accel), "<alt>%d", accel_number);
 392
 393                 gtk_accelerator_parse (accel, &accel_key, &accel_mods);
 394
 395                 if (accel_key != 0)
 396                 {
 397                         gtk_accel_map_change_entry (accel_path, accel_key,
 398                                                     accel_mods, TRUE);
 399                 }
 400         }
 401         else
 402         {
 403                 gtk_accel_map_change_entry (accel_path, 0, 0, TRUE);
 404         }
 405 }
 406
 407 void
 408 ephy_tabs_menu_update (EphyTabsMenu *menu)
 409 {
 410         EphyTabsMenuPrivate *p = menu->priv;
 411         GtkUIManager *manager;
 412         GtkAction *action;
 413         GList *tabs = NULL, *l;
 414         guint i = 0;
 415         const char *verb;
 416
 417         LOG ("Rebuilding open tabs menu");
 418
 419         START_PROFILER ("Rebuilding tabs menu")
 420
 421         ephy_tabs_menu_clean (menu);
 422
 423         tabs = ephy_window_get_tabs (p->window);
 424
 425         if (g_list_length (tabs) == 0) return;
 426
 427         manager =  GTK_UI_MANAGER (ephy_window_get_ui_manager (p->window));
 428         p->ui_id = gtk_ui_manager_new_merge_id (manager);
 429
 430         for (l = tabs; l != NULL; l = l->next)
 431         {
 432                 action = g_object_get_data (G_OBJECT (l->data), DATA_KEY);
 433                 g_return_if_fail (action != NULL);
 434
 435                 verb = gtk_action_get_name (action);
 436
 437                 tab_set_action_accelerator (p->action_group, action, i++);
 438
 439                 gtk_ui_manager_add_ui (manager, p->ui_id,
 440                                        "/menubar/TabsMenu/TabsOpen",
 441                                        verb, verb,
 442                                        GTK_UI_MANAGER_MENUITEM, FALSE);
 443         }
 444
 445         g_list_free (tabs);
 446
 447         STOP_PROFILER ("Rebuilding tabs menu")
 448 }