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// Copyright (c) 2012 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_UI_VIEWS_TAB_ICON_VIEW_H_
#define CHROME_BROWSER_UI_VIEWS_TAB_ICON_VIEW_H_
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "base/time/time.h"
#include "ui/views/controls/button/menu_button.h"
#include "ui/views/view.h"
namespace chrome {
class TabIconViewModel;
}
namespace gfx {
class ImageSkia;
}
// A view to display a tab favicon or a throbber.
class TabIconView : public views::MenuButton {
public:
static void InitializeIfNeeded();
TabIconView(chrome::TabIconViewModel* model,
views::MenuButtonListener* menu_button_listener);
~TabIconView() override;
// Invoke whenever the tab state changes or the throbber should update.
void Update();
// Set the throbber to the light style (for use on dark backgrounds).
void set_is_light(bool is_light) { is_light_ = is_light; }
private:
// views::MenuButton:
gfx::Size GetPreferredSize() const override;
const char* GetClassName() const override;
void OnPaint(gfx::Canvas* canvas) override;
void PaintThrobber(gfx::Canvas* canvas);
void PaintFavicon(gfx::Canvas* canvas, const gfx::ImageSkia& image);
// Our model.
chrome::TabIconViewModel* model_;
// Whether we should display our light or dark style.
bool is_light_;
// Time we painted the first frame of the current throbber animation, or
// 0 if not painting the throbber.
base::TimeTicks throbber_start_time_;
DISALLOW_COPY_AND_ASSIGN(TabIconView);
};
#endif // CHROME_BROWSER_UI_VIEWS_TAB_ICON_VIEW_H_
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