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// 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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