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Diffstat (limited to 'chrome/browser/tab_contents_container_view.h')
| -rw-r--r-- | chrome/browser/tab_contents_container_view.h | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/chrome/browser/tab_contents_container_view.h b/chrome/browser/tab_contents_container_view.h new file mode 100644 index 0000000..399b052 --- /dev/null +++ b/chrome/browser/tab_contents_container_view.h @@ -0,0 +1,105 @@ +// Copyright 2008, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +#ifndef CHROME_VIEWS_TAB_CONTENTS_CONTAINER_VIEW_H__ +#define CHROME_VIEWS_TAB_CONTENTS_CONTAINER_VIEW_H__ + +namespace ChromeView { +class KeyEvent; +class View; +} +class RenderViewHost; +class TabContents; + +#include "chrome/common/notification_service.h" +#include "chrome/views/focus_manager.h" +#include "chrome/views/hwnd_view.h" + +// This View contains the TabContents. +// It takes care of linking the TabContents to the browser RootView so that the +// focus can traverse from one to the other when pressing Tab/Shift-Tab. +class TabContentsContainerView : public ChromeViews::HWNDView, + public NotificationObserver { + public: + TabContentsContainerView(); + virtual ~TabContentsContainerView(); + + // Make the specified tab visible. + void SetTabContents(TabContents* tab_contents); + TabContents* GetTabContents() const { return tab_contents_; } + + // Overridden from View. + virtual ChromeViews::FocusTraversable* GetFocusTraversable(); + virtual bool IsFocusable() const; + virtual void Focus(); + virtual void RequestFocus(); + virtual void AboutToRequestFocusFromTabTraversal(bool reverse); + virtual bool CanProcessTabKeyEvents(); + + // Overridden from HWNDView. + virtual ChromeViews::FocusTraversable* GetFocusTraversableParent(); + virtual ChromeViews::View* GetFocusTraversableParentView(); + + // NotificationObserver implementation. + virtual void Observe(NotificationType type, + const NotificationSource& source, + const NotificationDetails& details); + + // Returns the MSAA role of the current view. The role is what assistive + // technologies (ATs) use to determine what behavior to expect from a given + // control. + bool GetAccessibleRole(VARIANT* role); + + protected: + // Web content should be given first crack at accelerators. This function + // returns false if the current tab is a webcontents. + virtual bool ShouldLookupAccelerators(const ChromeViews::KeyEvent& e); + + private: + // Add or remove observers for events that we care about. + void AddObservers(); + void RemoveObservers(); + + // Called when the RenderViewHost of the hosted TabContents has changed, e.g. + // to show an interstitial page. + void RenderViewHostChanged(RenderViewHost* old_host, + RenderViewHost* new_host); + + // Called when a TabContents is destroyed. This gives us a chance to clean + // up our internal state if the TabContents is somehow destroyed before we + // get notified. + void TabContentsDestroyed(TabContents* contents); + + // The current TabContents shown. + TabContents* tab_contents_; + + DISALLOW_EVIL_CONSTRUCTORS(TabContentsContainerView); +}; + +#endif // #ifndef CHROME_VIEWS_TAB_CONTENTS_CONTAINER_VIEW_H__
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