chrome/browser/ui/views/tabs/browser_tab_strip_controller.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_TABS_BROWSER_TAB_STRIP_CONTROLLER_H_
   6 #define CHROME_BROWSER_UI_VIEWS_TABS_BROWSER_TAB_STRIP_CONTROLLER_H_
   7
   8 #include "base/compiler_specific.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "base/prefs/pref_change_registrar.h"
  11 #include "chrome/browser/ui/tabs/hover_tab_selector.h"
  12 #include "chrome/browser/ui/tabs/tab_strip_model.h"
  13 #include "chrome/browser/ui/views/frame/immersive_mode_controller.h"
  14 #include "chrome/browser/ui/views/tabs/tab_strip_controller.h"
  15
  16 class Browser;
  17 class Tab;
  18 class TabStrip;
  19 struct TabRendererData;
  20
  21 namespace content {
  22 class WebContents;
  23 }
  24
  25 namespace ui {
  26 class ListSelectionModel;
  27 }
  28
  29 // An implementation of TabStripController that sources data from the
  30 // WebContentses in a TabStripModel.
  31 class BrowserTabStripController : public TabStripController,
  32                                   public TabStripModelObserver {
  33  public:
  34   BrowserTabStripController(Browser* browser, TabStripModel* model);
  35   ~BrowserTabStripController() override;
  36
  37   void InitFromModel(TabStrip* tabstrip);
  38
  39   TabStripModel* model() const { return model_; }
  40
  41   bool IsCommandEnabledForTab(TabStripModel::ContextMenuCommand command_id,
  42                               Tab* tab) const;
  43   void ExecuteCommandForTab(TabStripModel::ContextMenuCommand command_id,
  44                             Tab* tab);
  45   bool IsTabPinned(Tab* tab) const;
  46
  47   // TabStripController implementation:
  48   const ui::ListSelectionModel& GetSelectionModel() override;
  49   int GetCount() const override;
  50   bool IsValidIndex(int model_index) const override;
  51   bool IsActiveTab(int model_index) const override;
  52   int GetActiveIndex() const override;
  53   bool IsTabSelected(int model_index) const override;
  54   bool IsTabPinned(int model_index) const override;
  55   bool IsNewTabPage(int model_index) const override;
  56   void SelectTab(int model_index) override;
  57   void ExtendSelectionTo(int model_index) override;
  58   void ToggleSelected(int model_index) override;
  59   void AddSelectionFromAnchorTo(int model_index) override;
  60   void CloseTab(int model_index, CloseTabSource source) override;
  61   void ToggleTabAudioMute(int model_index) override;
  62   void ShowContextMenuForTab(Tab* tab,
  63                              const gfx::Point& p,
  64                              ui::MenuSourceType source_type) override;
  65   void UpdateLoadingAnimations() override;
  66   int HasAvailableDragActions() const override;
  67   void OnDropIndexUpdate(int index, bool drop_before) override;
  68   void PerformDrop(bool drop_before, int index, const GURL& url) override;
  69   bool IsCompatibleWith(TabStrip* other) const override;
  70   void CreateNewTab() override;
  71   void CreateNewTabWithLocation(const base::string16& loc) override;
  72   bool IsIncognito() override;
  73   void StackedLayoutMaybeChanged() override;
  74   void OnStartedDraggingTabs() override;
  75   void OnStoppedDraggingTabs() override;
  76   void CheckFileSupported(const GURL& url) override;
  77
  78   // TabStripModelObserver implementation:
  79   void TabInsertedAt(content::WebContents* contents,
  80                      int model_index,
  81                      bool is_active) override;
  82   void TabDetachedAt(content::WebContents* contents, int model_index) override;
  83   void TabSelectionChanged(TabStripModel* tab_strip_model,
  84                            const ui::ListSelectionModel& old_model) override;
  85   void TabMoved(content::WebContents* contents,
  86                 int from_model_index,
  87                 int to_model_index) override;
  88   void TabChangedAt(content::WebContents* contents,
  89                     int model_index,
  90                     TabChangeType change_type) override;
  91   void TabReplacedAt(TabStripModel* tab_strip_model,
  92                      content::WebContents* old_contents,
  93                      content::WebContents* new_contents,
  94                      int model_index) override;
  95   void TabPinnedStateChanged(content::WebContents* contents,
  96                              int model_index) override;
  97   void TabMiniStateChanged(content::WebContents* contents,
  98                            int model_index) override;
  99   void TabBlockedStateChanged(content::WebContents* contents,
 100                               int model_index) override;
 101
 102  protected:
 103   // The context in which SetTabRendererDataFromModel is being called.
 104   enum TabStatus {
 105     NEW_TAB,
 106     EXISTING_TAB
 107   };
 108
 109   // Sets the TabRendererData from the TabStripModel.
 110   virtual void SetTabRendererDataFromModel(content::WebContents* contents,
 111                                            int model_index,
 112                                            TabRendererData* data,
 113                                            TabStatus tab_status);
 114
 115   Profile* profile() const { return model_->profile(); }
 116
 117   const TabStrip* tabstrip() const { return tabstrip_; }
 118
 119   const Browser* browser() const { return browser_; }
 120
 121  private:
 122   class TabContextMenuContents;
 123
 124   // Invokes tabstrip_->SetTabData.
 125   void SetTabDataAt(content::WebContents* web_contents, int model_index);
 126
 127   void StartHighlightTabsForCommand(
 128       TabStripModel::ContextMenuCommand command_id,
 129       Tab* tab);
 130   void StopHighlightTabsForCommand(
 131       TabStripModel::ContextMenuCommand command_id,
 132       Tab* tab);
 133
 134   // Adds a tab.
 135   void AddTab(content::WebContents* contents, int index, bool is_active);
 136
 137   // Resets the tabstrips stacked layout (true or false) from prefs.
 138   void UpdateStackedLayout();
 139
 140   // Notifies the tabstrip whether |url| is supported once a MIME type request
 141   // has completed.
 142   void OnFindURLMimeTypeCompleted(const GURL& url,
 143                                   const std::string& mime_type);
 144
 145   TabStripModel* model_;
 146
 147   TabStrip* tabstrip_;
 148
 149   // Non-owning pointer to the browser which is using this controller.
 150   Browser* browser_;
 151
 152   // If non-NULL it means we're showing a menu for the tab.
 153   scoped_ptr<TabContextMenuContents> context_menu_contents_;
 154
 155   // Helper for performing tab selection as a result of dragging over a tab.
 156   HoverTabSelector hover_tab_selector_;
 157
 158   // Forces the tabs to use the regular (non-immersive) style and the
 159   // top-of-window views to be revealed when the user is dragging |tabstrip|'s
 160   // tabs.
 161   scoped_ptr<ImmersiveRevealedLock> immersive_reveal_lock_;
 162
 163   PrefChangeRegistrar local_pref_registrar_;
 164
 165   base::WeakPtrFactory<BrowserTabStripController> weak_ptr_factory_;
 166
 167   DISALLOW_COPY_AND_ASSIGN(BrowserTabStripController);
 168 };
 169
 170 #endif  // CHROME_BROWSER_UI_VIEWS_TABS_BROWSER_TAB_STRIP_CONTROLLER_H_