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// Copyright 2012 The Chromium Authors
// 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/memory/raw_ptr.h"
#include "base/time/time.h"
#include "ui/base/metadata/metadata_header_macros.h"
#include "ui/views/controls/button/menu_button.h"
class TabIconViewModel;
namespace gfx {
class ImageSkia;
}
// A view to display a tab favicon or a throbber.
class TabIconView : public views::MenuButton {
METADATA_HEADER(TabIconView, views::MenuButton)
public:
TabIconView();
TabIconView(const TabIconView&) = delete;
TabIconView& operator=(const TabIconView&) = delete;
~TabIconView() override;
void SetModel(TabIconViewModel* model);
// Invoke whenever the tab state changes or the throbber should update.
void Update();
private:
// views::MenuButton:
gfx::Size CalculatePreferredSize(
const views::SizeBounds& available_size) const override;
void PaintButtonContents(gfx::Canvas* canvas) override;
void PaintThrobber(gfx::Canvas* canvas);
void PaintFavicon(gfx::Canvas* canvas, const gfx::ImageSkia& image);
// Our model.
raw_ptr<TabIconViewModel> model_;
// Time we painted the first frame of the current throbber animation, or
// 0 if not painting the throbber.
base::TimeTicks throbber_start_time_;
};
BEGIN_VIEW_BUILDER(/* no export */, TabIconView, views::MenuButton)
VIEW_BUILDER_PROPERTY(TabIconViewModel*, Model)
END_VIEW_BUILDER
DEFINE_VIEW_BUILDER(/* no export */, TabIconView)
#endif // CHROME_BROWSER_UI_VIEWS_TAB_ICON_VIEW_H_
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