chrome/browser/ui/views/bookmarks/bookmark_bar_view.h

   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_VIEWS_BOOKMARKS_BOOKMARK_BAR_VIEW_H_
   6 #define CHROME_BROWSER_UI_VIEWS_BOOKMARKS_BOOKMARK_BAR_VIEW_H_
   7
   8 #include <set>
   9
  10 #include "base/basictypes.h"
  11 #include "base/compiler_specific.h"
  12 #include "base/gtest_prod_util.h"
  13 #include "base/memory/weak_ptr.h"
  14 #include "base/observer_list.h"
  15 #include "base/prefs/pref_change_registrar.h"
  16 #include "chrome/browser/bookmarks/bookmark_stats.h"
  17 #include "chrome/browser/ui/bookmarks/bookmark_bar.h"
  18 #include "chrome/browser/ui/bookmarks/bookmark_bar_instructions_delegate.h"
  19 #include "chrome/browser/ui/views/bookmarks/bookmark_bubble_view_observer.h"
  20 #include "chrome/browser/ui/views/bookmarks/bookmark_menu_controller_observer.h"
  21 #include "chrome/browser/ui/views/detachable_toolbar_view.h"
  22 #include "components/bookmarks/browser/bookmark_model_observer.h"
  23 #include "components/bookmarks/browser/bookmark_node_data.h"
  24 #include "ui/gfx/animation/animation_delegate.h"
  25 #include "ui/views/context_menu_controller.h"
  26 #include "ui/views/controls/button/button.h"
  27 #include "ui/views/controls/button/menu_button_listener.h"
  28 #include "ui/views/controls/menu/menu_types.h"
  29 #include "ui/views/drag_controller.h"
  30
  31 class BookmarkBarViewObserver;
  32 class BookmarkContextMenu;
  33 class BookmarkModel;
  34 class Browser;
  35 class BrowserView;
  36 class ChromeBookmarkClient;
  37 class Profile;
  38
  39 namespace content {
  40 class PageNavigator;
  41 }
  42
  43 namespace gfx {
  44 class SlideAnimation;
  45 }
  46
  47 namespace views {
  48 class CustomButton;
  49 class MenuButton;
  50 class MenuItemView;
  51 class LabelButton;
  52 }
  53
  54 // BookmarkBarView renders the BookmarkModel.  Each starred entry on the
  55 // BookmarkBar is rendered as a MenuButton. An additional MenuButton aligned to
  56 // the right allows the user to quickly see recently starred entries.
  57 //
  58 // BookmarkBarView shows the bookmarks from a specific Profile. BookmarkBarView
  59 // waits until the HistoryService for the profile has been loaded before
  60 // creating the BookmarkModel.
  61 class BookmarkBarView : public DetachableToolbarView,
  62                         public BookmarkModelObserver,
  63                         public views::MenuButtonListener,
  64                         public views::ButtonListener,
  65                         public views::ContextMenuController,
  66                         public views::DragController,
  67                         public gfx::AnimationDelegate,
  68                         public BookmarkMenuControllerObserver,
  69                         public BookmarkBarInstructionsDelegate,
  70                         public BookmarkBubbleViewObserver {
  71  public:
  72   // The internal view class name.
  73   static const char kViewClassName[];
  74
  75   // Constant used in Browser View, as well as here.
  76   // How inset the bookmarks bar is when displayed on the new tab page.
  77   static const int kNewtabHorizontalPadding;
  78
  79   // Maximum size of buttons on the bookmark bar.
  80   static const int kMaxButtonWidth;
  81
  82   // Number of pixels the attached bookmark bar overlaps with the toolbar.
  83   static const int kToolbarAttachedBookmarkBarOverlap;
  84
  85   // |browser_view| can be NULL during tests.
  86   BookmarkBarView(Browser* browser, BrowserView* browser_view);
  87   virtual ~BookmarkBarView();
  88
  89   static void DisableAnimationsForTesting(bool disabled);
  90
  91   // Returns the current browser.
  92   Browser* browser() const { return browser_; }
  93
  94   void AddObserver(BookmarkBarViewObserver* observer);
  95   void RemoveObserver(BookmarkBarViewObserver* observer);
  96
  97   // Sets the PageNavigator that is used when the user selects an entry on
  98   // the bookmark bar.
  99   void SetPageNavigator(content::PageNavigator* navigator);
 100
 101   // Sets whether the containing browser is showing an infobar.  This affects
 102   // layout during animation.
 103   void set_infobar_visible(bool infobar_visible) {
 104     infobar_visible_ = infobar_visible;
 105   }
 106
 107   // Changes the state of the bookmark bar.
 108   void SetBookmarkBarState(BookmarkBar::State state,
 109                            BookmarkBar::AnimateChangeType animate_type);
 110
 111   // Returns the toolbar overlap when fully detached.
 112   int GetFullyDetachedToolbarOverlap() const;
 113
 114   // Whether or not we are animating.
 115   bool is_animating();
 116
 117   // If |loc| is over a bookmark button the node is returned corresponding to
 118   // the button and |model_start_index| is set to 0. If a overflow button is
 119   // showing and |loc| is over the overflow button, the bookmark bar node is
 120   // returned and |model_start_index| is set to the index of the first node
 121   // contained in the overflow menu.
 122   const BookmarkNode* GetNodeForButtonAtModelIndex(const gfx::Point& loc,
 123                                                    int* model_start_index);
 124
 125   // Returns the MenuButton for node.
 126   views::MenuButton* GetMenuButtonForNode(const BookmarkNode* node);
 127
 128   // Returns the position to anchor the menu for |button| at.
 129   void GetAnchorPositionForButton(views::MenuButton* button,
 130                                   views::MenuAnchorPosition* anchor);
 131
 132   // Returns the button responsible for showing bookmarks in the other bookmark
 133   // folder.
 134   views::MenuButton* other_bookmarked_button() const {
 135     return other_bookmarked_button_;
 136   }
 137
 138   // Returns the button used when not all the items on the bookmark bar fit.
 139   views::MenuButton* overflow_button() const { return overflow_button_; }
 140
 141   // Returns the active MenuItemView, or NULL if a menu isn't showing.
 142   views::MenuItemView* GetMenu();
 143
 144   // Returns the context menu, or null if one isn't showing.
 145   views::MenuItemView* GetContextMenu();
 146
 147   // Returns the drop MenuItemView, or NULL if a menu isn't showing.
 148   views::MenuItemView* GetDropMenu();
 149
 150   // If a button is currently throbbing, it is stopped. If immediate is true
 151   // the throb stops immediately, otherwise it stops after a couple more
 152   // throbs.
 153   void StopThrobbing(bool immediate);
 154
 155   // Returns the tooltip text for the specified url and title. The returned
 156   // text is clipped to fit within the bounds of the monitor. |context| is
 157   // used to determine which gfx::Screen is used to retrieve bounds.
 158   //
 159   // Note that we adjust the direction of both the URL and the title based on
 160   // the locale so that pure LTR strings are displayed properly in RTL locales.
 161   static base::string16 CreateToolTipForURLAndTitle(const views::Widget* widget,
 162                                               const gfx::Point& screen_loc,
 163                                               const GURL& url,
 164                                               const base::string16& title,
 165                                               Profile* profile);
 166
 167   // DetachableToolbarView methods:
 168   virtual bool IsDetached() const override;
 169   virtual double GetAnimationValue() const override;
 170   virtual int GetToolbarOverlap() const override;
 171
 172   // View methods:
 173   virtual gfx::Size GetPreferredSize() const override;
 174   virtual gfx::Size GetMinimumSize() const override;
 175   virtual bool CanProcessEventsWithinSubtree() const override;
 176   virtual void Layout() override;
 177   virtual void ViewHierarchyChanged(
 178       const ViewHierarchyChangedDetails& details) override;
 179   virtual void PaintChildren(gfx::Canvas* canvas,
 180                              const views::CullSet& cull_set) override;
 181   virtual bool GetDropFormats(
 182       int* formats,
 183       std::set<ui::OSExchangeData::CustomFormat>* custom_formats) override;
 184   virtual bool AreDropTypesRequired() override;
 185   virtual bool CanDrop(const ui::OSExchangeData& data) override;
 186   virtual void OnDragEntered(const ui::DropTargetEvent& event) override;
 187   virtual int OnDragUpdated(const ui::DropTargetEvent& event) override;
 188   virtual void OnDragExited() override;
 189   virtual int OnPerformDrop(const ui::DropTargetEvent& event) override;
 190   virtual void OnThemeChanged() override;
 191   virtual const char* GetClassName() const override;
 192   virtual void SetVisible(bool visible) override;
 193
 194   // AccessiblePaneView:
 195   virtual void GetAccessibleState(ui::AXViewState* state) override;
 196
 197   // gfx::AnimationDelegate:
 198   virtual void AnimationProgressed(const gfx::Animation* animation) override;
 199   virtual void AnimationEnded(const gfx::Animation* animation) override;
 200
 201   // BookmarkMenuControllerObserver:
 202   virtual void BookmarkMenuControllerDeleted(
 203       BookmarkMenuController* controller) override;
 204
 205   // BookmarkBarInstructionsDelegate:
 206   virtual void ShowImportDialog() override;
 207
 208   // BookmarkBubbleViewObserver:
 209   virtual void OnBookmarkBubbleShown(const GURL& url) override;
 210   virtual void OnBookmarkBubbleHidden() override;
 211
 212   // BookmarkModelObserver:
 213   virtual void BookmarkModelLoaded(BookmarkModel* model,
 214                                    bool ids_reassigned) override;
 215   virtual void BookmarkModelBeingDeleted(BookmarkModel* model) override;
 216   virtual void BookmarkNodeMoved(BookmarkModel* model,
 217                                  const BookmarkNode* old_parent,
 218                                  int old_index,
 219                                  const BookmarkNode* new_parent,
 220                                  int new_index) override;
 221   virtual void BookmarkNodeAdded(BookmarkModel* model,
 222                                  const BookmarkNode* parent,
 223                                  int index) override;
 224   virtual void BookmarkNodeRemoved(BookmarkModel* model,
 225                                    const BookmarkNode* parent,
 226                                    int old_index,
 227                                    const BookmarkNode* node,
 228                                    const std::set<GURL>& removed_urls) override;
 229   virtual void BookmarkAllUserNodesRemoved(
 230       BookmarkModel* model,
 231       const std::set<GURL>& removed_urls) override;
 232   virtual void BookmarkNodeChanged(BookmarkModel* model,
 233                                    const BookmarkNode* node) override;
 234   virtual void BookmarkNodeChildrenReordered(BookmarkModel* model,
 235                                              const BookmarkNode* node) override;
 236   virtual void BookmarkNodeFaviconChanged(BookmarkModel* model,
 237                                           const BookmarkNode* node) override;
 238
 239   // views::DragController:
 240   virtual void WriteDragDataForView(views::View* sender,
 241                                     const gfx::Point& press_pt,
 242                                     ui::OSExchangeData* data) override;
 243   virtual int GetDragOperationsForView(views::View* sender,
 244                                        const gfx::Point& p) override;
 245   virtual bool CanStartDragForView(views::View* sender,
 246                                    const gfx::Point& press_pt,
 247                                    const gfx::Point& p) override;
 248
 249   // views::MenuButtonListener:
 250   virtual void OnMenuButtonClicked(views::View* view,
 251                                    const gfx::Point& point) override;
 252
 253   // views::ButtonListener:
 254   virtual void ButtonPressed(views::Button* sender,
 255                              const ui::Event& event) override;
 256
 257   // views::ContextMenuController:
 258   virtual void ShowContextMenuForView(views::View* source,
 259                                       const gfx::Point& point,
 260                                       ui::MenuSourceType source_type) override;
 261
 262  private:
 263   class ButtonSeparatorView;
 264   struct DropInfo;
 265   struct DropLocation;
 266
 267   friend class BookmarkBarViewEventTestBase;
 268   FRIEND_TEST_ALL_PREFIXES(BookmarkBarViewTest, SwitchProfile);
 269   FRIEND_TEST_ALL_PREFIXES(BookmarkBarViewTest,
 270                            ManagedShowAppsShortcutInBookmarksBar);
 271   FRIEND_TEST_ALL_PREFIXES(BookmarkBarViewInstantExtendedTest,
 272                            AppsShortcutVisibility);
 273
 274   // Used to identify what the user is dropping onto.
 275   enum DropButtonType {
 276     DROP_BOOKMARK,
 277     DROP_OTHER_FOLDER,
 278     DROP_OVERFLOW
 279   };
 280
 281   // Creates recent bookmark button and when visible button as well as
 282   // calculating the preferred height.
 283   void Init();
 284
 285   // NOTE: unless otherwise stated all methods that take an int for an index are
 286   // in terms of the bookmark bar view. Typically the view index and model index
 287   // are the same, but they may differ during animations or drag and drop.
 288   //
 289   // It's easy to get the mapping wrong. For this reason all these methods are
 290   // private.
 291
 292   // Returns the number of buttons corresponding to starred urls/folders. This
 293   // is equivalent to the number of children the bookmark bar node from the
 294   // bookmark bar model has.
 295   int GetBookmarkButtonCount() const;
 296
 297   // Returns the button at the specified index.
 298   views::LabelButton* GetBookmarkButton(int index);
 299
 300   // Returns BOOKMARK_LAUNCH_LOCATION_DETACHED_BAR or
 301   // BOOKMARK_LAUNCH_LOCATION_ATTACHED_BAR based on detached state.
 302   BookmarkLaunchLocation GetBookmarkLaunchLocation() const;
 303
 304   // Returns the index of the first hidden bookmark button. If all buttons are
 305   // visible, this returns GetBookmarkButtonCount().
 306   int GetFirstHiddenNodeIndex();
 307
 308   // Creates the button showing the other bookmarked items.
 309   views::MenuButton* CreateOtherBookmarkedButton();
 310
 311   // Creates the button showing the managed bookmarks items.
 312   views::MenuButton* CreateManagedBookmarksButton();
 313
 314   // Creates the button used when not all bookmark buttons fit.
 315   views::MenuButton* CreateOverflowButton();
 316
 317   // Creates the button for rendering the specified bookmark node.
 318   views::View* CreateBookmarkButton(const BookmarkNode* node);
 319
 320   // Creates the button for rendering the apps page shortcut.
 321   views::LabelButton* CreateAppsPageShortcutButton();
 322
 323   // Configures the button from the specified node. This sets the text,
 324   // and icon.
 325   void ConfigureButton(const BookmarkNode* node, views::LabelButton* button);
 326
 327   // Implementation for BookmarkNodeAddedImpl.
 328   void BookmarkNodeAddedImpl(BookmarkModel* model,
 329                              const BookmarkNode* parent,
 330                              int index);
 331
 332   // Implementation for BookmarkNodeRemoved.
 333   void BookmarkNodeRemovedImpl(BookmarkModel* model,
 334                                const BookmarkNode* parent,
 335                                int index);
 336
 337   // If the node is a child of the root node, the button is updated
 338   // appropriately.
 339   void BookmarkNodeChangedImpl(BookmarkModel* model, const BookmarkNode* node);
 340
 341   // Shows the menu used during drag and drop for the specified node.
 342   void ShowDropFolderForNode(const BookmarkNode* node);
 343
 344   // Cancels the timer used to show a drop menu.
 345   void StopShowFolderDropMenuTimer();
 346
 347   // Stars the timer used to show a drop menu for node.
 348   void StartShowFolderDropMenuTimer(const BookmarkNode* node);
 349
 350   // Calculates the location for the drop in |location|.
 351   void CalculateDropLocation(const ui::DropTargetEvent& event,
 352                              const bookmarks::BookmarkNodeData& data,
 353                              DropLocation* location);
 354
 355   // Writes a BookmarkNodeData for node to data.
 356   void WriteBookmarkDragData(const BookmarkNode* node,
 357                              ui::OSExchangeData* data);
 358
 359   // This determines which view should throb and starts it
 360   // throbbing (e.g when the bookmark bubble is showing).
 361   // If |overflow_only| is true, start throbbing only if |node| is hidden in
 362   // the overflow menu.
 363   void StartThrobbing(const BookmarkNode* node, bool overflow_only);
 364
 365   // Returns the view to throb when a node is removed. |parent| is the parent of
 366   // the node that was removed, and |old_index| the index of the node that was
 367   // removed.
 368   views::CustomButton* DetermineViewToThrobFromRemove(
 369       const BookmarkNode* parent,
 370       int old_index);
 371
 372   // Updates the colors for all the child objects in the bookmarks bar.
 373   void UpdateColors();
 374
 375   // Updates the visibility of |other_bookmarked_button_| and
 376   // |managed_bookmarks_button_|. Also shows or hides the separator if required.
 377   void UpdateButtonsVisibility();
 378
 379   // Updates the visibility of |bookmarks_separator_view_|.
 380   void UpdateBookmarksSeparatorVisibility();
 381
 382   // Updates the visibility of the apps shortcut based on the pref value.
 383   void OnAppsPageShortcutVisibilityPrefChanged();
 384
 385   // Needed to react to kShowAppsShortcutInBookmarkBar changes.
 386   PrefChangeRegistrar profile_pref_registrar_;
 387
 388   // Used for opening urls.
 389   content::PageNavigator* page_navigator_;
 390
 391   // BookmarkModel that owns the entries and folders that are shown in this
 392   // view. This is owned by the Profile.
 393   BookmarkModel* model_;
 394
 395   // ChromeBookmarkClient. This is owned by the Profile.
 396   ChromeBookmarkClient* client_;
 397
 398   // Used to manage showing a Menu, either for the most recently bookmarked
 399   // entries, or for the starred folder.
 400   BookmarkMenuController* bookmark_menu_;
 401
 402   // Used when showing a menu for drag and drop. That is, if the user drags
 403   // over a folder this becomes non-null and manages the menu showing the
 404   // contents of the node.
 405   BookmarkMenuController* bookmark_drop_menu_;
 406
 407   // If non-NULL we're showing a context menu for one of the items on the
 408   // bookmark bar.
 409   scoped_ptr<BookmarkContextMenu> context_menu_;
 410
 411   // Shows the other bookmark entries.
 412   views::MenuButton* other_bookmarked_button_;
 413
 414   // Shows the managed bookmarks entries.
 415   views::MenuButton* managed_bookmarks_button_;
 416
 417   // Shows the Apps page shortcut.
 418   views::LabelButton* apps_page_shortcut_;
 419
 420   // Used to track drops on the bookmark bar view.
 421   scoped_ptr<DropInfo> drop_info_;
 422
 423   // Visible if not all the bookmark buttons fit.
 424   views::MenuButton* overflow_button_;
 425
 426   // Shows a text and a link to import bookmarks if there are no bookmarks in
 427   // the Bookmarks Bar.
 428   views::View* instructions_;
 429
 430   ButtonSeparatorView* bookmarks_separator_view_;
 431
 432   Browser* browser_;
 433   BrowserView* browser_view_;
 434
 435   // True if the owning browser is showing an infobar.
 436   bool infobar_visible_;
 437
 438   // Animation controlling showing and hiding of the bar.
 439   scoped_ptr<gfx::SlideAnimation> size_animation_;
 440
 441   // If the bookmark bubble is showing, this is the visible ancestor of the URL.
 442   // The visible ancestor is either the other_bookmarked_button_,
 443   // overflow_button_ or a button on the bar.
 444   views::CustomButton* throbbing_view_;
 445
 446   BookmarkBar::State bookmark_bar_state_;
 447
 448   // Are we animating to or from the detached state?
 449   bool animating_detached_;
 450
 451   ObserverList<BookmarkBarViewObserver> observers_;
 452
 453   // Factory used to delay showing of the drop menu.
 454   base::WeakPtrFactory<BookmarkBarView> show_folder_method_factory_;
 455
 456   DISALLOW_COPY_AND_ASSIGN(BookmarkBarView);
 457 };
 458
 459 #endif  // CHROME_BROWSER_UI_VIEWS_BOOKMARKS_BOOKMARK_BAR_VIEW_H_