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// Copyright (c) 2009 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_CHROMEOS_BROWSER_EXTENDER_H_
#define CHROME_BROWSER_CHROMEOS_BROWSER_EXTENDER_H_
#include "base/basictypes.h"
#include "base/gfx/rect.h"
class BrowserView;
namespace views {
class Window;
} // namespace views
// BrowserExtender adds chromeos specific features to BrowserView.
// The factory method |Create(BrowserView*)| returns two different types
// of extender depending on the type of BrowserView. If the browser_view
// is normal browser, it returns NormalExtender that adds controls to
// the title bar as follows:
// ____ __ __
// [MainMenu] / \ \ \ [StatusArea]
//
// and adds the system context menu to the remaining arae of the titlebar.
//
// If it is popup window, it returns PopupExtender that creates
// a title window.
class BrowserExtender {
public:
// Factory method to create a BrowserExtender for given
// BrowserView object. Please see the class description for details.
static BrowserExtender* Create(BrowserView* browser_view);
virtual ~BrowserExtender() {}
// Initializes the extender.
virtual void Init() = 0;
// Layouts controls within the given bounds and returns the remaining
// bounds for tabstip to be layed out.
virtual gfx::Rect Layout(const gfx::Rect& bounds) { return bounds; }
// Tests if the given |point|, which is given in window coordinates,
// hits any of controls.
virtual bool NonClientHitTest(const gfx::Point& point) = 0;
// Updates the title bar (if any).
virtual void UpdateTitleBar() {}
// Called when the BrowserView is shown.
virtual void Show() = 0;
// Called when the BrowserView is closed.
virtual void Close() {}
// Called when the browser window is either activated or deactivated.
virtual void ActivationChanged() {}
// Tells if the browser can be closed.
bool can_close() const {
return can_close_;
}
// Specifies if the browser can be closed or not. This typically set
// to false when the browser is being dragged.
void set_can_close(bool b) {
can_close_ = b;
}
protected:
explicit BrowserExtender(BrowserView* browser_view);
// Returns the view Window object that contains the BrowserView.
views::Window* GetBrowserWindow();
BrowserView* browser_view() {
return browser_view_;
}
private:
// BrowserView to be extended.
BrowserView* browser_view_;
// True if the browser can be closed. See set_can_close method for setails.
bool can_close_;
DISALLOW_COPY_AND_ASSIGN(BrowserExtender);
};
#endif // CHROME_BROWSER_CHROMEOS_BROWSER_EXTENDER_H_
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