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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_BROWSER_WEB_APP_ICON_MANAGER_H__
#define CHROME_BROWSER_WEB_APP_ICON_MANAGER_H__
#include <windows.h>
#include "base/scoped_ptr.h"
#include "chrome/browser/web_app.h"
class TabContents;
// WebAppIconManager is used by SimpleXPFrame/SimpleVistaFrame to manage the
// icons for the frame. If the current contents are a web app, then icon is
// set from the app, otherwise the icons are set to the default.
class WebAppIconManager : public WebApp::Observer {
public:
explicit WebAppIconManager(HWND parent);
~WebAppIconManager();
// Sets the contents the WebApp should come from. If the contents has a web
// app, the image comes from it, otherwise the icon for the HWND is set to
// the default chrome icon.
void SetContents(TabContents* contents);
// Enables/disables icons. If true and this WebAppIconManager was previously
// disabled, the icon is updated immediately.
void SetUpdatesEnabled(bool enabled);
private:
// Invoked when the icons of the WebApp has changed. Invokes
// UpdateIconsFromApp appropriately.
virtual void WebAppImagesChanged(WebApp* web_app);
// Updates the icons of the HWND, unless we're disabled in which case this
// does nothing.
void UpdateIconsFromApp();
// HWND the icon is updated on.
const HWND hwnd_;
// Current app, may be null.
scoped_refptr<WebApp> app_;
// Icons. These are only valid if the app doesn't have an icon.
HICON small_icon_;
HICON big_icon_;
// Are we enabled? If not, we won't update the icons of the HWND.
bool enabled_;
DISALLOW_EVIL_CONSTRUCTORS(WebAppIconManager);
};
#endif // CHROME_BROWSER_WEB_APP_ICON_MANAGER_H__
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