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// Copyright (c) 2006-2008 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_VIEWS_STAR_TOGGLE_H_
#define CHROME_BROWSER_VIEWS_STAR_TOGGLE_H_
#include "views/view.h"
#include "views/event.h"
class SkBitmap;
////////////////////////////////////////////////////////////////////////////////
//
// A view subclass to implement the star button. The star button notifies its
// Delegate when the state changes.
//
////////////////////////////////////////////////////////////////////////////////
class StarToggle : public views::View {
public:
class Delegate {
public:
// Called when the star is toggled.
virtual void StarStateChanged(bool state) = 0;
};
explicit StarToggle(Delegate* delegate);
virtual ~StarToggle();
// Set whether the star is checked.
void SetState(bool s);
bool GetState() const;
// If true (the default) the state is immediately changed on a mouse release.
// If false, on mouse release the delegate is notified, but the state is not
// changed.
void set_change_state_immediately(bool value) {
change_state_immediately_ = value;
}
// Check/uncheck the star.
void SwitchState();
// Overriden from view.
void Paint(ChromeCanvas* canvas);
gfx::Size GetPreferredSize();
virtual bool OnMousePressed(const views::MouseEvent& e);
virtual bool OnMouseDragged(const views::MouseEvent& event);
virtual void OnMouseReleased(const views::MouseEvent& e, bool canceled);
bool OnKeyPressed(const views::KeyEvent& e);
private:
// The state.
bool state_;
// Our bitmap.
SkBitmap* state_off_;
SkBitmap* state_on_;
// Parent to be notified.
Delegate* delegate_;
// See note in setter.
bool change_state_immediately_;
DISALLOW_EVIL_CONSTRUCTORS(StarToggle);
};
#endif // CHROME_BROWSER_VIEWS_STAR_TOGGLE_H_
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