Home | History | Annotate | Download | only in tab_contents 
      1 // Copyright (c) 2011 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_TAB_CONTENTS_TAB_CONTENTS_CONTAINER_VIEWS_H_
      6 #define CHROME_BROWSER_UI_VIEWS_TAB_CONTENTS_TAB_CONTENTS_CONTAINER_VIEWS_H_
      7 #pragma once
      8 
      9 #include "content/common/notification_observer.h"
     10 #include "content/common/notification_registrar.h"
     11 #include "views/view.h"
     12 
     13 class NativeTabContentsContainer;
     14 class RenderViewHost;
     15 class RenderWidgetHostView;
     16 class TabContents;
     17 
     18 class TabContentsContainer : public views::View,
     19                              public NotificationObserver {
     20  public:
     21   TabContentsContainer();
     22   virtual ~TabContentsContainer();
     23 
     24   // Changes the TabContents associated with this view.
     25   void ChangeTabContents(TabContents* contents);
     26 
     27   View* GetFocusView() { return this; }
     28 
     29   // Accessor for |tab_contents_|.
     30   TabContents* tab_contents() const { return tab_contents_; }
     31 
     32   // Called by the BrowserView to notify that |tab_contents| got the focus.
     33   void TabContentsFocused(TabContents* tab_contents);
     34 
     35   // Tells the container to update less frequently during resizing operations
     36   // so performance is better.
     37   void SetFastResize(bool fast_resize);
     38 
     39   // Updates the current reserved rect in view coordinates where contents
     40   // should not be rendered to draw the resize corner, sidebar mini tabs etc.
     41   void SetReservedContentsRect(const gfx::Rect& reserved_rect);
     42 
     43   // Overridden from NotificationObserver:
     44   virtual void Observe(NotificationType type,
     45                        const NotificationSource& source,
     46                        const NotificationDetails& details) OVERRIDE;
     47 
     48   virtual void GetAccessibleState(ui::AccessibleViewState* state) OVERRIDE;
     49 
     50  private:
     51   // Add or remove observers for events that we care about.
     52   void AddObservers();
     53   void RemoveObservers();
     54 
     55   // Called when the RenderViewHost of the hosted TabContents has changed, e.g.
     56   // to show an interstitial page.
     57   void RenderViewHostChanged(RenderViewHost* old_host,
     58                              RenderViewHost* new_host);
     59 
     60   // Called when a TabContents is destroyed. This gives us a chance to clean
     61   // up our internal state if the TabContents is somehow destroyed before we
     62   // get notified.
     63   void TabContentsDestroyed(TabContents* contents);
     64 
     65   // Called when the RenderWidgetHostView of the hosted TabContents has changed.
     66   void RenderWidgetHostViewChanged(RenderWidgetHostView* new_view);
     67 
     68   // The attached TabContents.
     69   TabContents* tab_contents_;
     70 
     71   // Handles registering for our notifications.
     72   NotificationRegistrar registrar_;
     73 
     74   // The current reserved rect in view coordinates where contents should not be
     75   // rendered to draw the resize corner, sidebar mini tabs etc.
     76   // Cached here to update ever changing renderers.
     77   gfx::Rect cached_reserved_rect_;
     78 
     79   DISALLOW_COPY_AND_ASSIGN(TabContentsContainer);
     80 };
     81 
     82 #endif  // CHROME_BROWSER_UI_VIEWS_TAB_CONTENTS_TAB_CONTENTS_CONTAINER_VIEWS_H_
     83