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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_TAB_ICON_VIEW_H_
#define CHROME_BROWSER_VIEWS_TAB_ICON_VIEW_H_
#include "views/view.h"
class SkBitmap;
class TabContents;
////////////////////////////////////////////////////////////////////////////////
//
// A view to display a tab fav icon or a throbber.
//
////////////////////////////////////////////////////////////////////////////////
class TabIconView : public views::View {
public:
// Classes implement this interface to provide state for the TabIconView.
class TabIconViewModel {
public:
// Returns true if the TabIconView should show a loading animation.
virtual bool ShouldTabIconViewAnimate() const = 0;
// Returns the favicon to display in the icon view
virtual SkBitmap GetFavIconForTabIconView() = 0;
};
static void InitializeIfNeeded();
explicit TabIconView(TabIconViewModel* provider);
virtual ~TabIconView();
// 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; }
// Overriden from View
virtual void Paint(gfx::Canvas* canvas);
virtual gfx::Size GetPreferredSize();
private:
void PaintThrobber(gfx::Canvas* canvas);
void PaintFavIcon(gfx::Canvas* canvas, const SkBitmap& bitmap);
void PaintIcon(gfx::Canvas* canvas,
const SkBitmap& bitmap,
int src_x,
int src_y,
int src_w,
int src_h,
bool filter);
// Our model.
TabIconViewModel* model_;
// Whether the throbber is running.
bool throbber_running_;
// Whether we should display our light or dark style.
bool is_light_;
// Current frame of the throbber being painted. This is only used if
// throbber_running_ is true.
int throbber_frame_;
DISALLOW_COPY_AND_ASSIGN(TabIconView);
};
#endif // CHROME_BROWSER_VIEWS_TAB_ICON_VIEW_H_
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