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| 1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "chrome/browser/gtk/bookmark_menu_controller_gtk.h" | |
| 6 | |
| 7 #include <gtk/gtk.h> | |
| 8 | |
| 9 #include "app/gtk_dnd_util.h" | |
| 10 #include "app/l10n_util.h" | |
| 11 #include "base/string_util.h" | |
| 12 #include "base/utf_string_conversions.h" | |
| 13 #include "chrome/browser/bookmarks/bookmark_model.h" | |
| 14 #include "chrome/browser/bookmarks/bookmark_utils.h" | |
| 15 #include "chrome/browser/gtk/bookmark_utils_gtk.h" | |
| 16 #include "chrome/browser/gtk/gtk_chrome_button.h" | |
| 17 #include "chrome/browser/gtk/gtk_theme_provider.h" | |
| 18 #include "chrome/browser/gtk/gtk_util.h" | |
| 19 #include "chrome/browser/gtk/menu_gtk.h" | |
| 20 #include "chrome/browser/profiles/profile.h" | |
| 21 #include "chrome/browser/tab_contents/page_navigator.h" | |
| 22 #include "gfx/gtk_util.h" | |
| 23 #include "grit/app_resources.h" | |
| 24 #include "grit/generated_resources.h" | |
| 25 #include "grit/theme_resources.h" | |
| 26 #include "webkit/glue/window_open_disposition.h" | |
| 27 | |
| 28 namespace { | |
| 29 | |
| 30 // TODO(estade): It might be a good idea to vary this by locale. | |
| 31 const int kMaxChars = 50; | |
| 32 | |
| 33 void SetImageMenuItem(GtkWidget* menu_item, | |
| 34 const BookmarkNode* node, | |
| 35 BookmarkModel* model) { | |
| 36 GdkPixbuf* pixbuf = bookmark_utils::GetPixbufForNode(node, model, true); | |
| 37 gtk_image_menu_item_set_image(GTK_IMAGE_MENU_ITEM(menu_item), | |
| 38 gtk_image_new_from_pixbuf(pixbuf)); | |
| 39 g_object_unref(pixbuf); | |
| 40 } | |
| 41 | |
| 42 const BookmarkNode* GetNodeFromMenuItem(GtkWidget* menu_item) { | |
| 43 return static_cast<const BookmarkNode*>( | |
| 44 g_object_get_data(G_OBJECT(menu_item), "bookmark-node")); | |
| 45 } | |
| 46 | |
| 47 const BookmarkNode* GetParentNodeFromEmptyMenu(GtkWidget* menu) { | |
| 48 return static_cast<const BookmarkNode*>( | |
| 49 g_object_get_data(G_OBJECT(menu), "parent-node")); | |
| 50 } | |
| 51 | |
| 52 void* AsVoid(const BookmarkNode* node) { | |
| 53 return const_cast<BookmarkNode*>(node); | |
| 54 } | |
| 55 | |
| 56 // The context menu has been dismissed, restore the X and application grabs | |
| 57 // to whichever menu last had them. (Assuming that menu is still showing.) | |
| 58 void OnContextMenuHide(GtkWidget* context_menu, GtkWidget* grab_menu) { | |
| 59 gtk_util::GrabAllInput(grab_menu); | |
| 60 | |
| 61 // Match the ref we took when connecting this signal. | |
| 62 g_object_unref(grab_menu); | |
| 63 } | |
| 64 | |
| 65 } // namespace | |
| 66 | |
| 67 BookmarkMenuController::BookmarkMenuController(Browser* browser, | |
| 68 Profile* profile, | |
| 69 PageNavigator* navigator, | |
| 70 GtkWindow* window, | |
| 71 const BookmarkNode* node, | |
| 72 int start_child_index) | |
| 73 : browser_(browser), | |
| 74 profile_(profile), | |
| 75 page_navigator_(navigator), | |
| 76 parent_window_(window), | |
| 77 model_(profile->GetBookmarkModel()), | |
| 78 node_(node), | |
| 79 drag_icon_(NULL), | |
| 80 ignore_button_release_(false), | |
| 81 triggering_widget_(NULL) { | |
| 82 menu_ = gtk_menu_new(); | |
| 83 g_object_ref_sink(menu_); | |
| 84 BuildMenu(node, start_child_index, menu_); | |
| 85 signals_.Connect(menu_, "hide", | |
| 86 G_CALLBACK(OnMenuHiddenThunk), this); | |
| 87 gtk_widget_show_all(menu_); | |
| 88 } | |
| 89 | |
| 90 BookmarkMenuController::~BookmarkMenuController() { | |
| 91 profile_->GetBookmarkModel()->RemoveObserver(this); | |
| 92 // Make sure the hide handler runs. | |
| 93 gtk_widget_hide(menu_); | |
| 94 gtk_widget_destroy(menu_); | |
| 95 g_object_unref(menu_); | |
| 96 } | |
| 97 | |
| 98 void BookmarkMenuController::Popup(GtkWidget* widget, gint button_type, | |
| 99 guint32 timestamp) { | |
| 100 profile_->GetBookmarkModel()->AddObserver(this); | |
| 101 | |
| 102 triggering_widget_ = widget; | |
| 103 signals_.Connect(triggering_widget_, "destroy", | |
| 104 G_CALLBACK(gtk_widget_destroyed), &triggering_widget_); | |
| 105 gtk_chrome_button_set_paint_state(GTK_CHROME_BUTTON(widget), | |
| 106 GTK_STATE_ACTIVE); | |
| 107 gtk_menu_popup(GTK_MENU(menu_), NULL, NULL, | |
| 108 &MenuGtk::WidgetMenuPositionFunc, | |
| 109 widget, button_type, timestamp); | |
| 110 } | |
| 111 | |
| 112 void BookmarkMenuController::BookmarkModelChanged() { | |
| 113 gtk_menu_popdown(GTK_MENU(menu_)); | |
| 114 } | |
| 115 | |
| 116 void BookmarkMenuController::BookmarkNodeFavIconLoaded( | |
| 117 BookmarkModel* model, const BookmarkNode* node) { | |
| 118 std::map<const BookmarkNode*, GtkWidget*>::iterator it = | |
| 119 node_to_menu_widget_map_.find(node); | |
| 120 if (it != node_to_menu_widget_map_.end()) | |
| 121 SetImageMenuItem(it->second, node, model); | |
| 122 } | |
| 123 | |
| 124 void BookmarkMenuController::WillExecuteCommand() { | |
| 125 gtk_menu_popdown(GTK_MENU(menu_)); | |
| 126 } | |
| 127 | |
| 128 void BookmarkMenuController::CloseMenu() { | |
| 129 context_menu_->Cancel(); | |
| 130 } | |
| 131 | |
| 132 void BookmarkMenuController::NavigateToMenuItem( | |
| 133 GtkWidget* menu_item, | |
| 134 WindowOpenDisposition disposition) { | |
| 135 const BookmarkNode* node = GetNodeFromMenuItem(menu_item); | |
| 136 DCHECK(node); | |
| 137 DCHECK(page_navigator_); | |
| 138 page_navigator_->OpenURL( | |
| 139 node->GetURL(), GURL(), disposition, PageTransition::AUTO_BOOKMARK); | |
| 140 } | |
| 141 | |
| 142 void BookmarkMenuController::BuildMenu(const BookmarkNode* parent, | |
| 143 int start_child_index, | |
| 144 GtkWidget* menu) { | |
| 145 DCHECK(!parent->GetChildCount() || | |
| 146 start_child_index < parent->GetChildCount()); | |
| 147 | |
| 148 signals_.Connect(menu, "button-press-event", | |
| 149 G_CALLBACK(OnMenuButtonPressedOrReleasedThunk), this); | |
| 150 signals_.Connect(menu, "button-release-event", | |
| 151 G_CALLBACK(OnMenuButtonPressedOrReleasedThunk), this); | |
| 152 | |
| 153 for (int i = start_child_index; i < parent->GetChildCount(); ++i) { | |
| 154 const BookmarkNode* node = parent->GetChild(i); | |
| 155 | |
| 156 // This breaks on word boundaries. Ideally we would break on character | |
| 157 // boundaries. | |
| 158 string16 elided_name = l10n_util::TruncateString(node->GetTitle(), | |
| 159 kMaxChars); | |
| 160 GtkWidget* menu_item = | |
| 161 gtk_image_menu_item_new_with_label(UTF16ToUTF8(elided_name).c_str()); | |
| 162 g_object_set_data(G_OBJECT(menu_item), "bookmark-node", AsVoid(node)); | |
| 163 SetImageMenuItem(menu_item, node, profile_->GetBookmarkModel()); | |
| 164 gtk_util::SetAlwaysShowImage(menu_item); | |
| 165 | |
| 166 signals_.Connect(menu_item, "button-release-event", | |
| 167 G_CALLBACK(OnButtonReleasedThunk), this); | |
| 168 if (node->is_url()) { | |
| 169 signals_.Connect(menu_item, "activate", | |
| 170 G_CALLBACK(OnMenuItemActivatedThunk), this); | |
| 171 } else if (node->is_folder()) { | |
| 172 GtkWidget* submenu = gtk_menu_new(); | |
| 173 BuildMenu(node, 0, submenu); | |
| 174 gtk_menu_item_set_submenu(GTK_MENU_ITEM(menu_item), submenu); | |
| 175 } else { | |
| 176 NOTREACHED(); | |
| 177 } | |
| 178 | |
| 179 gtk_drag_source_set(menu_item, GDK_BUTTON1_MASK, NULL, 0, | |
| 180 static_cast<GdkDragAction>(GDK_ACTION_COPY | GDK_ACTION_LINK)); | |
| 181 int target_mask = gtk_dnd_util::CHROME_BOOKMARK_ITEM; | |
| 182 if (node->is_url()) | |
| 183 target_mask |= gtk_dnd_util::TEXT_URI_LIST | gtk_dnd_util::NETSCAPE_URL; | |
| 184 gtk_dnd_util::SetSourceTargetListFromCodeMask(menu_item, target_mask); | |
| 185 signals_.Connect(menu_item, "drag-begin", | |
| 186 G_CALLBACK(OnMenuItemDragBeginThunk), this); | |
| 187 signals_.Connect(menu_item, "drag-end", | |
| 188 G_CALLBACK(OnMenuItemDragEndThunk), this); | |
| 189 signals_.Connect(menu_item, "drag-data-get", | |
| 190 G_CALLBACK(OnMenuItemDragGetThunk), this); | |
| 191 | |
| 192 // It is important to connect to this signal after setting up the drag | |
| 193 // source because we only want to stifle the menu's default handler and | |
| 194 // not the handler that the drag source uses. | |
| 195 if (node->is_folder()) { | |
| 196 signals_.Connect(menu_item, "button-press-event", | |
| 197 G_CALLBACK(OnFolderButtonPressedThunk), this); | |
| 198 } | |
| 199 | |
| 200 gtk_menu_shell_append(GTK_MENU_SHELL(menu), menu_item); | |
| 201 node_to_menu_widget_map_[node] = menu_item; | |
| 202 } | |
| 203 | |
| 204 if (parent->GetChildCount() == 0) { | |
| 205 GtkWidget* empty_menu = gtk_menu_item_new_with_label( | |
| 206 l10n_util::GetStringUTF8(IDS_MENU_EMPTY_SUBMENU).c_str()); | |
| 207 gtk_widget_set_sensitive(empty_menu, FALSE); | |
| 208 g_object_set_data(G_OBJECT(menu), "parent-node", AsVoid(parent)); | |
| 209 gtk_menu_shell_append(GTK_MENU_SHELL(menu), empty_menu); | |
| 210 } | |
| 211 } | |
| 212 | |
| 213 gboolean BookmarkMenuController::OnMenuButtonPressedOrReleased( | |
| 214 GtkWidget* sender, | |
| 215 GdkEventButton* event) { | |
| 216 // Handle middle mouse downs and right mouse ups. | |
| 217 if (!((event->button == 2 && event->type == GDK_BUTTON_RELEASE) || | |
| 218 (event->button == 3 && event->type == GDK_BUTTON_PRESS))) { | |
| 219 return FALSE; | |
| 220 } | |
| 221 | |
| 222 ignore_button_release_ = false; | |
| 223 GtkMenuShell* menu_shell = GTK_MENU_SHELL(sender); | |
| 224 // If the cursor is outside our bounds, pass this event up to the parent. | |
| 225 if (!gtk_util::WidgetContainsCursor(sender)) { | |
| 226 if (menu_shell->parent_menu_shell) { | |
| 227 return OnMenuButtonPressedOrReleased(menu_shell->parent_menu_shell, | |
| 228 event); | |
| 229 } else { | |
| 230 // We are the top level menu; we can propagate no further. | |
| 231 return FALSE; | |
| 232 } | |
| 233 } | |
| 234 | |
| 235 // This will return NULL if we are not an empty menu. | |
| 236 const BookmarkNode* parent = GetParentNodeFromEmptyMenu(sender); | |
| 237 bool is_empty_menu = !!parent; | |
| 238 // If there is no active menu item and we are not an empty menu, then do | |
| 239 // nothing. This can happen if the user has canceled a context menu while | |
| 240 // the cursor is hovering over a bookmark menu. Doing nothing is not optimal | |
| 241 // (the hovered item should be active), but it's a hopefully rare corner | |
| 242 // case. | |
| 243 GtkWidget* menu_item = menu_shell->active_menu_item; | |
| 244 if (!is_empty_menu && !menu_item) | |
| 245 return TRUE; | |
| 246 const BookmarkNode* node = | |
| 247 menu_item ? GetNodeFromMenuItem(menu_item) : NULL; | |
| 248 | |
| 249 if (event->button == 2 && node && node->is_folder()) { | |
| 250 bookmark_utils::OpenAll(parent_window_, | |
| 251 profile_, page_navigator_, | |
| 252 node, NEW_BACKGROUND_TAB); | |
| 253 gtk_menu_popdown(GTK_MENU(menu_)); | |
| 254 return TRUE; | |
| 255 } else if (event->button == 3) { | |
| 256 DCHECK_NE(is_empty_menu, !!node); | |
| 257 if (!is_empty_menu) | |
| 258 parent = node->GetParent(); | |
| 259 | |
| 260 // Show the right click menu and stop processing this button event. | |
| 261 std::vector<const BookmarkNode*> nodes; | |
| 262 if (node) | |
| 263 nodes.push_back(node); | |
| 264 context_menu_controller_.reset( | |
| 265 new BookmarkContextMenuController( | |
| 266 parent_window_, this, profile_, | |
| 267 page_navigator_, parent, nodes)); | |
| 268 context_menu_.reset( | |
| 269 new MenuGtk(NULL, context_menu_controller_->menu_model())); | |
| 270 | |
| 271 // Our bookmark folder menu loses the grab to the context menu. When the | |
| 272 // context menu is hidden, re-assert our grab. | |
| 273 GtkWidget* grabbing_menu = gtk_grab_get_current(); | |
| 274 g_object_ref(grabbing_menu); | |
| 275 signals_.Connect(context_menu_->widget(), "hide", | |
| 276 G_CALLBACK(OnContextMenuHide), grabbing_menu); | |
| 277 | |
| 278 context_menu_->PopupAsContext(event->time); | |
| 279 return TRUE; | |
| 280 } | |
| 281 | |
| 282 return FALSE; | |
| 283 } | |
| 284 | |
| 285 gboolean BookmarkMenuController::OnButtonReleased( | |
| 286 GtkWidget* sender, | |
| 287 GdkEventButton* event) { | |
| 288 if (ignore_button_release_) { | |
| 289 // Don't handle this message; it was a drag. | |
| 290 ignore_button_release_ = false; | |
| 291 return FALSE; | |
| 292 } | |
| 293 | |
| 294 // Releasing either button 1 or 2 should trigger the bookmark. | |
| 295 if (!gtk_menu_item_get_submenu(GTK_MENU_ITEM(sender))) { | |
| 296 // The menu item is a link node. | |
| 297 if (event->button == 1 || event->button == 2) { | |
| 298 WindowOpenDisposition disposition = | |
| 299 event_utils::DispositionFromEventFlags(event->state); | |
| 300 NavigateToMenuItem(sender, disposition); | |
| 301 | |
| 302 // We need to manually dismiss the popup menu because we're overriding | |
| 303 // button-release-event. | |
| 304 gtk_menu_popdown(GTK_MENU(menu_)); | |
| 305 return TRUE; | |
| 306 } | |
| 307 } else { | |
| 308 // The menu item is a folder node. | |
| 309 if (event->button == 1) { | |
| 310 // Having overriden the normal handling, we need to manually activate | |
| 311 // the item. | |
| 312 gtk_menu_shell_select_item(GTK_MENU_SHELL(sender->parent), sender); | |
| 313 g_signal_emit_by_name(sender->parent, "activate-current"); | |
| 314 return TRUE; | |
| 315 } | |
| 316 } | |
| 317 | |
| 318 return FALSE; | |
| 319 } | |
| 320 | |
| 321 gboolean BookmarkMenuController::OnFolderButtonPressed( | |
| 322 GtkWidget* sender, GdkEventButton* event) { | |
| 323 // The button press may start a drag; don't let the default handler run. | |
| 324 if (event->button == 1) | |
| 325 return TRUE; | |
| 326 return FALSE; | |
| 327 } | |
| 328 | |
| 329 void BookmarkMenuController::OnMenuHidden(GtkWidget* menu) { | |
| 330 if (triggering_widget_) | |
| 331 gtk_chrome_button_unset_paint_state(GTK_CHROME_BUTTON(triggering_widget_)); | |
| 332 } | |
| 333 | |
| 334 void BookmarkMenuController::OnMenuItemActivated(GtkWidget* menu_item) { | |
| 335 NavigateToMenuItem(menu_item, CURRENT_TAB); | |
| 336 } | |
| 337 | |
| 338 void BookmarkMenuController::OnMenuItemDragBegin(GtkWidget* menu_item, | |
| 339 GdkDragContext* drag_context) { | |
| 340 // The parent menu item might be removed during the drag. Ref it so |button| | |
| 341 // won't get destroyed. | |
| 342 g_object_ref(menu_item->parent); | |
| 343 | |
| 344 // Signal to any future OnButtonReleased calls that we're dragging instead of | |
| 345 // pressing. | |
| 346 ignore_button_release_ = true; | |
| 347 | |
| 348 const BookmarkNode* node = bookmark_utils::BookmarkNodeForWidget(menu_item); | |
| 349 drag_icon_ = bookmark_utils::GetDragRepresentationForNode( | |
| 350 node, model_, GtkThemeProvider::GetFrom(profile_)); | |
| 351 gint x, y; | |
| 352 gtk_widget_get_pointer(menu_item, &x, &y); | |
| 353 gtk_drag_set_icon_widget(drag_context, drag_icon_, x, y); | |
| 354 | |
| 355 // Hide our node. | |
| 356 gtk_widget_hide(menu_item); | |
| 357 } | |
| 358 | |
| 359 void BookmarkMenuController::OnMenuItemDragEnd(GtkWidget* menu_item, | |
| 360 GdkDragContext* drag_context) { | |
| 361 gtk_widget_show(menu_item); | |
| 362 g_object_unref(menu_item->parent); | |
| 363 | |
| 364 gtk_widget_destroy(drag_icon_); | |
| 365 drag_icon_ = NULL; | |
| 366 } | |
| 367 | |
| 368 void BookmarkMenuController::OnMenuItemDragGet( | |
| 369 GtkWidget* widget, GdkDragContext* context, | |
| 370 GtkSelectionData* selection_data, | |
| 371 guint target_type, guint time) { | |
| 372 const BookmarkNode* node = bookmark_utils::BookmarkNodeForWidget(widget); | |
| 373 bookmark_utils::WriteBookmarkToSelection(node, selection_data, target_type, | |
| 374 profile_); | |
| 375 } | |
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Chromium Code Reviews
Issue 6251001:
Move chrome/browser/gtk/ to chrome/browser/ui/gtk/... (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src/