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| 1 // Copyright (c) 2012 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 #ifndef CHROME_BROWSER_UI_GTK_BOOKMARKS_BOOKMARK_BAR_GTK_H_ | |
| 6 #define CHROME_BROWSER_UI_GTK_BOOKMARKS_BOOKMARK_BAR_GTK_H_ | |
| 7 | |
| 8 #include <gtk/gtk.h> | |
| 9 | |
| 10 #include <vector> | |
| 11 | |
| 12 #include "base/compiler_specific.h" | |
| 13 #include "base/gtest_prod_util.h" | |
| 14 #include "base/memory/scoped_ptr.h" | |
| 15 #include "base/memory/weak_ptr.h" | |
| 16 #include "base/prefs/pref_member.h" | |
| 17 #include "chrome/browser/bookmarks/bookmark_model_observer.h" | |
| 18 #include "chrome/browser/bookmarks/bookmark_stats.h" | |
| 19 #include "chrome/browser/ui/bookmarks/bookmark_bar.h" | |
| 20 #include "chrome/browser/ui/bookmarks/bookmark_bar_instructions_delegate.h" | |
| 21 #include "chrome/browser/ui/bookmarks/bookmark_context_menu_controller.h" | |
| 22 #include "chrome/browser/ui/gtk/menu_bar_helper.h" | |
| 23 #include "content/public/browser/notification_observer.h" | |
| 24 #include "content/public/browser/notification_registrar.h" | |
| 25 #include "ui/base/gtk/gtk_signal.h" | |
| 26 #include "ui/base/gtk/owned_widget_gtk.h" | |
| 27 #include "ui/gfx/animation/animation.h" | |
| 28 #include "ui/gfx/animation/animation_delegate.h" | |
| 29 #include "ui/gfx/animation/slide_animation.h" | |
| 30 #include "ui/gfx/point.h" | |
| 31 #include "ui/gfx/size.h" | |
| 32 | |
| 33 class BookmarkBarInstructionsGtk; | |
| 34 class BookmarkMenuController; | |
| 35 class Browser; | |
| 36 class BrowserWindowGtk; | |
| 37 class GtkThemeService; | |
| 38 class MenuGtk; | |
| 39 class TabstripOriginProvider; | |
| 40 | |
| 41 namespace content { | |
| 42 class PageNavigator; | |
| 43 } | |
| 44 | |
| 45 class BookmarkBarGtk : public gfx::AnimationDelegate, | |
| 46 public BookmarkModelObserver, | |
| 47 public MenuBarHelper::Delegate, | |
| 48 public content::NotificationObserver, | |
| 49 public BookmarkBarInstructionsDelegate, | |
| 50 public BookmarkContextMenuControllerDelegate { | |
| 51 public: | |
| 52 BookmarkBarGtk(BrowserWindowGtk* window, | |
| 53 Browser* browser, | |
| 54 TabstripOriginProvider* tabstrip_origin_provider); | |
| 55 virtual ~BookmarkBarGtk(); | |
| 56 | |
| 57 // Returns the current browser. | |
| 58 Browser* browser() const { return browser_; } | |
| 59 | |
| 60 // Returns the top level widget. | |
| 61 GtkWidget* widget() const { return event_box_.get(); } | |
| 62 | |
| 63 // Sets the PageNavigator that is used when the user selects an entry on | |
| 64 // the bookmark bar. | |
| 65 void SetPageNavigator(content::PageNavigator* navigator); | |
| 66 | |
| 67 // Create the contents of the bookmark bar. | |
| 68 void Init(); | |
| 69 | |
| 70 // Changes the state of the bookmark bar. | |
| 71 void SetBookmarkBarState(BookmarkBar::State state, | |
| 72 BookmarkBar::AnimateChangeType animate_type); | |
| 73 | |
| 74 // Get the current height of the bookmark bar. | |
| 75 int GetHeight(); | |
| 76 | |
| 77 // Returns true if the bookmark bar is showing an animation. | |
| 78 bool IsAnimating(); | |
| 79 | |
| 80 // gfx::AnimationDelegate implementation ------------------------------------- | |
| 81 virtual void AnimationProgressed(const gfx::Animation* animation) OVERRIDE; | |
| 82 virtual void AnimationEnded(const gfx::Animation* animation) OVERRIDE; | |
| 83 | |
| 84 // MenuBarHelper::Delegate implementation ------------------------------------ | |
| 85 virtual void PopupForButton(GtkWidget* button) OVERRIDE; | |
| 86 virtual void PopupForButtonNextTo(GtkWidget* button, | |
| 87 GtkMenuDirectionType dir) OVERRIDE; | |
| 88 | |
| 89 // BookmarkContextMenuController::Delegate implementation -------------------- | |
| 90 virtual void CloseMenu() OVERRIDE; | |
| 91 | |
| 92 const gfx::Animation* animation() { return &slide_animation_; } | |
| 93 | |
| 94 int max_height() const { return max_height_; } | |
| 95 | |
| 96 private: | |
| 97 FRIEND_TEST_ALL_PREFIXES(BookmarkBarGtkUnittest, DisplaysHelpMessageOnEmpty); | |
| 98 FRIEND_TEST_ALL_PREFIXES(BookmarkBarGtkUnittest, | |
| 99 HidesHelpMessageWithBookmark); | |
| 100 FRIEND_TEST_ALL_PREFIXES(BookmarkBarGtkUnittest, BuildsButtons); | |
| 101 | |
| 102 // Change the visibility of the bookmarks bar. (Starts out hidden, per GTK's | |
| 103 // default behaviour). There are three visiblity states: | |
| 104 // | |
| 105 // Showing - bookmark bar is fully visible. | |
| 106 // Hidden - bookmark bar is hidden except for a few pixels that give | |
| 107 // extra padding to the bottom of the toolbar. Buttons are not | |
| 108 // clickable. | |
| 109 // Fullscreen - bookmark bar is fully hidden. | |
| 110 void Show(BookmarkBar::State old_state, | |
| 111 BookmarkBar::AnimateChangeType animate_type); | |
| 112 void Hide(BookmarkBar::State old_state, | |
| 113 BookmarkBar::AnimateChangeType animate_type); | |
| 114 | |
| 115 // Calculate maximum height of bookmark bar. | |
| 116 void CalculateMaxHeight(); | |
| 117 | |
| 118 // Helper function which generates GtkToolItems for |bookmark_toolbar_|. | |
| 119 void CreateAllBookmarkButtons(); | |
| 120 | |
| 121 // Sets the visibility of the instructional text based on whether there are | |
| 122 // any bookmarks in the bookmark bar node. | |
| 123 void SetInstructionState(); | |
| 124 | |
| 125 // Sets the visibility of the overflow chevron. | |
| 126 void SetChevronState(); | |
| 127 | |
| 128 // Shows or hides the other bookmarks button depending on whether there are | |
| 129 // bookmarks in it. | |
| 130 void UpdateOtherBookmarksVisibility(); | |
| 131 | |
| 132 // Destroys all the bookmark buttons in the GtkToolbar. | |
| 133 void RemoveAllButtons(); | |
| 134 | |
| 135 // Adds the "other bookmarks" and overflow buttons. | |
| 136 void AddCoreButtons(); | |
| 137 | |
| 138 // Removes and recreates all buttons in the bar. | |
| 139 void ResetButtons(); | |
| 140 | |
| 141 // Returns the number of buttons corresponding to starred urls/folders. This | |
| 142 // is equivalent to the number of children the bookmark bar node from the | |
| 143 // bookmark bar model has. | |
| 144 int GetBookmarkButtonCount(); | |
| 145 | |
| 146 // Returns BOOKMARK_LAUNCH_LOCATION_DETACHED_BAR or | |
| 147 // BOOKMARK_LAUNCH_LOCATION_ATTACHED_BAR based on detached state. | |
| 148 BookmarkLaunchLocation GetBookmarkLaunchLocation() const; | |
| 149 | |
| 150 // Set the appearance of the overflow button appropriately (either chromium | |
| 151 // style or GTK style). | |
| 152 void SetOverflowButtonAppearance(); | |
| 153 | |
| 154 // Returns the index of the first bookmark that is not visible on the bar. | |
| 155 // Returns -1 if they are all visible. | |
| 156 // |extra_space| is how much extra space to give the toolbar during the | |
| 157 // calculation (for the purposes of determining if ditching the chevron | |
| 158 // would be a good idea). | |
| 159 // If non-NULL, |showing_folders| will be packed with all the folders that are | |
| 160 // showing on the bar. | |
| 161 int GetFirstHiddenBookmark(int extra_space, | |
| 162 std::vector<GtkWidget*>* showing_folders); | |
| 163 | |
| 164 // Update the detached state (either enable or disable it, or do nothing). | |
| 165 void UpdateDetachedState(BookmarkBar::State old_state); | |
| 166 | |
| 167 // Turns on or off the app_paintable flag on |event_box_|, depending on our | |
| 168 // state. | |
| 169 void UpdateEventBoxPaintability(); | |
| 170 | |
| 171 // Queue a paint on the event box. | |
| 172 void PaintEventBox(); | |
| 173 | |
| 174 // Finds the size of the current web contents, if it exists and sets |size| | |
| 175 // to the correct value. Returns false if there isn't a WebContents, a | |
| 176 // condition that can happen during testing. | |
| 177 bool GetWebContentsSize(gfx::Size* size); | |
| 178 | |
| 179 // Connects to the "size-allocate" signal on the given widget, and causes it | |
| 180 // to throb after allocation. This is called when a new item is added to the | |
| 181 // bar. We can't call StartThrobbing directly because we don't know if it's | |
| 182 // visible or not until after the widget is allocated. | |
| 183 void StartThrobbingAfterAllocation(GtkWidget* item); | |
| 184 | |
| 185 // Used by StartThrobbingAfterAllocation. | |
| 186 CHROMEGTK_CALLBACK_1(BookmarkBarGtk, void, OnItemAllocate, GtkAllocation*); | |
| 187 | |
| 188 // Makes the appropriate widget on the bookmark bar stop throbbing | |
| 189 // (a folder, the overflow chevron, or nothing). | |
| 190 void StartThrobbing(const BookmarkNode* node); | |
| 191 | |
| 192 // Set |throbbing_widget_| to |widget|. Also makes sure that | |
| 193 // |throbbing_widget_| doesn't become stale. | |
| 194 void SetThrobbingWidget(GtkWidget* widget); | |
| 195 | |
| 196 // An item has been dragged over the toolbar, update the drag context | |
| 197 // and toolbar UI appropriately. | |
| 198 gboolean ItemDraggedOverToolbar( | |
| 199 GdkDragContext* context, int index, guint time); | |
| 200 | |
| 201 // When dragging in the middle of a folder, assume the user wants to drop | |
| 202 // on the folder. Towards the edges, assume the user wants to drop on the | |
| 203 // toolbar. This makes it possible to drop between two folders. This function | |
| 204 // returns the index on the toolbar the drag should target, or -1 if the | |
| 205 // drag should hit the folder. | |
| 206 int GetToolbarIndexForDragOverFolder(GtkWidget* button, gint x); | |
| 207 | |
| 208 void ClearToolbarDropHighlighting(); | |
| 209 | |
| 210 // Overridden from BookmarkModelObserver: | |
| 211 virtual void BookmarkModelLoaded(BookmarkModel* model, | |
| 212 bool ids_reassigned) OVERRIDE; | |
| 213 virtual void BookmarkModelBeingDeleted(BookmarkModel* model) OVERRIDE; | |
| 214 virtual void BookmarkNodeMoved(BookmarkModel* model, | |
| 215 const BookmarkNode* old_parent, | |
| 216 int old_index, | |
| 217 const BookmarkNode* new_parent, | |
| 218 int new_index) OVERRIDE; | |
| 219 virtual void BookmarkNodeAdded(BookmarkModel* model, | |
| 220 const BookmarkNode* parent, | |
| 221 int index) OVERRIDE; | |
| 222 virtual void BookmarkNodeRemoved(BookmarkModel* model, | |
| 223 const BookmarkNode* parent, | |
| 224 int old_index, | |
| 225 const BookmarkNode* node) OVERRIDE; | |
| 226 virtual void BookmarkAllNodesRemoved(BookmarkModel* model) OVERRIDE; | |
| 227 virtual void BookmarkNodeChanged(BookmarkModel* model, | |
| 228 const BookmarkNode* node) OVERRIDE; | |
| 229 virtual void BookmarkNodeFaviconChanged(BookmarkModel* model, | |
| 230 const BookmarkNode* node) OVERRIDE; | |
| 231 virtual void BookmarkNodeChildrenReordered(BookmarkModel* model, | |
| 232 const BookmarkNode* node) OVERRIDE; | |
| 233 | |
| 234 // Overridden from content::NotificationObserver: | |
| 235 virtual void Observe(int type, | |
| 236 const content::NotificationSource& source, | |
| 237 const content::NotificationDetails& details) OVERRIDE; | |
| 238 | |
| 239 GtkWidget* CreateBookmarkButton(const BookmarkNode* node); | |
| 240 GtkToolItem* CreateBookmarkToolItem(const BookmarkNode* node); | |
| 241 | |
| 242 void ConnectFolderButtonEvents(GtkWidget* widget, bool is_tool_item); | |
| 243 | |
| 244 // Finds the BookmarkNode from the model associated with |button|. | |
| 245 const BookmarkNode* GetNodeForToolButton(GtkWidget* button); | |
| 246 | |
| 247 // Creates and displays a popup menu for BookmarkNode |node|. | |
| 248 void PopupMenuForNode(GtkWidget* sender, const BookmarkNode* node, | |
| 249 GdkEventButton* event); | |
| 250 | |
| 251 // GtkButton callbacks. | |
| 252 CHROMEGTK_CALLBACK_1(BookmarkBarGtk, gboolean, OnButtonPressed, | |
| 253 GdkEventButton*); | |
| 254 CHROMEGTK_CALLBACK_0(BookmarkBarGtk, void, OnClicked); | |
| 255 CHROMEGTK_CALLBACK_1(BookmarkBarGtk, void, OnButtonDragBegin, | |
| 256 GdkDragContext*); | |
| 257 CHROMEGTK_CALLBACK_1(BookmarkBarGtk, void, OnButtonDragEnd, GdkDragContext*); | |
| 258 CHROMEGTK_CALLBACK_4(BookmarkBarGtk, void, OnButtonDragGet, | |
| 259 GdkDragContext*, GtkSelectionData*, guint, guint); | |
| 260 | |
| 261 // GtkButton callbacks for folder buttons. | |
| 262 CHROMEGTK_CALLBACK_0(BookmarkBarGtk, void, OnFolderClicked); | |
| 263 | |
| 264 // GtkButton callback for apps button. | |
| 265 CHROMEGTK_CALLBACK_0(BookmarkBarGtk, void, OnAppsButtonClicked); | |
| 266 | |
| 267 // GtkToolbar callbacks. | |
| 268 CHROMEGTK_CALLBACK_4(BookmarkBarGtk, gboolean, OnToolbarDragMotion, | |
| 269 GdkDragContext*, gint, gint, guint); | |
| 270 CHROMEGTK_CALLBACK_1(BookmarkBarGtk, void, OnToolbarSizeAllocate, | |
| 271 GtkAllocation*); | |
| 272 | |
| 273 // Used for both folder buttons and the toolbar. | |
| 274 CHROMEGTK_CALLBACK_6(BookmarkBarGtk, void, OnDragReceived, | |
| 275 GdkDragContext*, gint, gint, GtkSelectionData*, | |
| 276 guint, guint); | |
| 277 CHROMEGTK_CALLBACK_2(BookmarkBarGtk, void, OnDragLeave, | |
| 278 GdkDragContext*, guint); | |
| 279 | |
| 280 // Used for folder buttons. | |
| 281 CHROMEGTK_CALLBACK_4(BookmarkBarGtk, gboolean, OnFolderDragMotion, | |
| 282 GdkDragContext*, gint, gint, guint); | |
| 283 | |
| 284 // GtkEventBox callbacks. | |
| 285 CHROMEGTK_CALLBACK_1(BookmarkBarGtk, gboolean, OnEventBoxExpose, | |
| 286 GdkEventExpose*); | |
| 287 CHROMEGTK_CALLBACK_0(BookmarkBarGtk, void, OnEventBoxDestroy); | |
| 288 | |
| 289 // Callbacks on our parent widget. | |
| 290 CHROMEGTK_CALLBACK_1(BookmarkBarGtk, void, OnParentSizeAllocate, | |
| 291 GtkAllocation*); | |
| 292 | |
| 293 // |throbbing_widget_| callback. | |
| 294 CHROMEGTK_CALLBACK_0(BookmarkBarGtk, void, OnThrobbingWidgetDestroy); | |
| 295 | |
| 296 // Overriden from BookmarkBarInstructionsDelegate: | |
| 297 virtual void ShowImportDialog() OVERRIDE; | |
| 298 | |
| 299 // Updates the visibility of the apps shortcut button |apps_shortcut_visible_| | |
| 300 // changes. | |
| 301 void OnAppsPageShortcutVisibilityChanged(); | |
| 302 | |
| 303 // Updates the drag&drop state when |edit_bookmarks_enabled_| changes. | |
| 304 void OnEditBookmarksEnabledChanged(); | |
| 305 | |
| 306 // Used for opening urls. | |
| 307 content::PageNavigator* page_navigator_; | |
| 308 | |
| 309 Browser* browser_; | |
| 310 BrowserWindowGtk* window_; | |
| 311 | |
| 312 // Provides us with the offset into the background theme image. | |
| 313 TabstripOriginProvider* tabstrip_origin_provider_; | |
| 314 | |
| 315 // Model providing details as to the starred entries/folders that should be | |
| 316 // shown. This is owned by the Profile. | |
| 317 BookmarkModel* model_; | |
| 318 | |
| 319 // Contains |bookmark_hbox_|. Event box exists to prevent leakage of | |
| 320 // background color from the toplevel application window's GDK window. | |
| 321 ui::OwnedWidgetGtk event_box_; | |
| 322 | |
| 323 // Used to detached the bookmark bar when on the NTP. | |
| 324 GtkWidget* ntp_padding_box_; | |
| 325 | |
| 326 // Used to paint the background of the bookmark bar when in detached mode. | |
| 327 GtkWidget* paint_box_; | |
| 328 | |
| 329 // Used to position all children. | |
| 330 GtkWidget* bookmark_hbox_; | |
| 331 | |
| 332 // Alignment widget that is visible if there are no bookmarks on | |
| 333 // the bookmar bar. | |
| 334 GtkWidget* instructions_; | |
| 335 | |
| 336 // BookmarkBarInstructionsGtk that holds the label and the link for importing | |
| 337 // bookmarks when there are no bookmarks on the bookmark bar. | |
| 338 scoped_ptr<BookmarkBarInstructionsGtk> instructions_gtk_; | |
| 339 | |
| 340 // The apps page shortcut button. | |
| 341 GtkWidget* apps_shortcut_button_; | |
| 342 | |
| 343 // GtkToolbar which contains all the bookmark buttons. | |
| 344 ui::OwnedWidgetGtk bookmark_toolbar_; | |
| 345 | |
| 346 // The button that shows extra bookmarks that don't fit on the bookmark | |
| 347 // bar. | |
| 348 GtkWidget* overflow_button_; | |
| 349 | |
| 350 // A separator between the main bookmark bar area and | |
| 351 // |other_bookmarks_button_|. | |
| 352 GtkWidget* other_bookmarks_separator_; | |
| 353 | |
| 354 // The other bookmarks button. | |
| 355 GtkWidget* other_bookmarks_button_; | |
| 356 | |
| 357 // Padding for the other bookmarks button. | |
| 358 GtkWidget* other_padding_; | |
| 359 | |
| 360 // The BookmarkNode from the model being dragged. NULL when we aren't | |
| 361 // dragging. | |
| 362 const BookmarkNode* dragged_node_; | |
| 363 | |
| 364 // The visual representation that follows the cursor during drags. | |
| 365 GtkWidget* drag_icon_; | |
| 366 | |
| 367 // We create a GtkToolbarItem from |dragged_node_| ;or display. | |
| 368 GtkToolItem* toolbar_drop_item_; | |
| 369 | |
| 370 // Theme provider for building buttons. | |
| 371 GtkThemeService* theme_service_; | |
| 372 | |
| 373 // Whether we should show the instructional text in the bookmark bar. | |
| 374 bool show_instructions_; | |
| 375 | |
| 376 MenuBarHelper menu_bar_helper_; | |
| 377 | |
| 378 // The last displayed right click menu, or NULL if no menus have been | |
| 379 // displayed yet. | |
| 380 // The controller. | |
| 381 scoped_ptr<BookmarkContextMenuController> current_context_menu_controller_; | |
| 382 // The view. | |
| 383 scoped_ptr<MenuGtk> current_context_menu_; | |
| 384 | |
| 385 // The last displayed left click menu, or NULL if no menus have been | |
| 386 // displayed yet. | |
| 387 scoped_ptr<BookmarkMenuController> current_menu_; | |
| 388 | |
| 389 gfx::SlideAnimation slide_animation_; | |
| 390 | |
| 391 // Used to optimize out |bookmark_toolbar_| size-allocate events we don't | |
| 392 // need to respond to. | |
| 393 int last_allocation_width_; | |
| 394 | |
| 395 content::NotificationRegistrar registrar_; | |
| 396 | |
| 397 // The size of the web contents last time we forced a paint. We keep track | |
| 398 // of this so we don't force too many paints. | |
| 399 gfx::Size last_web_contents_size_; | |
| 400 | |
| 401 // The last coordinates recorded by OnButtonPress; used to line up the | |
| 402 // drag icon during bookmark drags. | |
| 403 gfx::Point last_pressed_coordinates_; | |
| 404 | |
| 405 // The currently throbbing widget. This is NULL if no widget is throbbing. | |
| 406 // We track it because we only want to allow one widget to throb at a time. | |
| 407 GtkWidget* throbbing_widget_; | |
| 408 | |
| 409 // Tracks whether the apps shortcut button should be shown. | |
| 410 BooleanPrefMember apps_shortcut_visible_; | |
| 411 | |
| 412 // Tracks whether bookmarks can be modified. | |
| 413 BooleanPrefMember edit_bookmarks_enabled_; | |
| 414 | |
| 415 BookmarkBar::State bookmark_bar_state_; | |
| 416 | |
| 417 // Maximum height of the bookmark bar. | |
| 418 int max_height_; | |
| 419 | |
| 420 base::WeakPtrFactory<BookmarkBarGtk> weak_factory_; | |
| 421 | |
| 422 DISALLOW_COPY_AND_ASSIGN(BookmarkBarGtk); | |
| 423 }; | |
| 424 | |
| 425 #endif // CHROME_BROWSER_UI_GTK_BOOKMARKS_BOOKMARK_BAR_GTK_H_ | |
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