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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_VIEW_TAB_ICON_VIEW_H__
#define CHROME_BROWSER_VIEW_TAB_ICON_VIEW_H__
#include "chrome/views/view.h"
class TabContents;
////////////////////////////////////////////////////////////////////////////////
//
// A view to display a tab fav icon or a throbber.
//
////////////////////////////////////////////////////////////////////////////////
class TabIconView : public views::View {
public:
class TabContentsProvider {
public:
// Should return the current tab contents this TabIconView object is
// representing.
virtual TabContents* GetCurrentTabContents() = 0;
// Returns the favicon to display in the icon view
virtual SkBitmap GetFavIcon() = 0;
};
static void InitializeIfNeeded();
explicit TabIconView(TabContentsProvider* 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(ChromeCanvas* canvas);
virtual gfx::Size GetPreferredSize();
private:
void PaintThrobber(ChromeCanvas* canvas);
void PaintFavIcon(ChromeCanvas* canvas, const SkBitmap& bitmap);
// Our provider of current tab contents.
TabContentsProvider* provider_;
// 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_EVIL_CONSTRUCTORS(TabIconView);
};
#endif // CHROME_BROWSER_VIEW_TAB_ICON_VIEW_H__
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