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// Copyright 2016 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_FRAME_WINDOWS_CAPTION_BUTTON_H_
#define CHROME_BROWSER_UI_VIEWS_FRAME_WINDOWS_CAPTION_BUTTON_H_
#include <memory>
#include "base/memory/raw_ptr.h"
#include "chrome/browser/ui/view_ids.h"
#include "chrome/browser/ui/views/frame/windows_icon_painter.h"
#include "ui/base/metadata/metadata_header_macros.h"
#include "ui/gfx/canvas.h"
#include "ui/views/controls/button/button.h"
class BrowserFrameViewWin;
class WindowsCaptionButton : public views::Button {
METADATA_HEADER(WindowsCaptionButton, views::Button)
public:
WindowsCaptionButton(PressedCallback callback,
BrowserFrameViewWin* frame_view,
ViewID button_type,
const std::u16string& accessible_name);
WindowsCaptionButton(const WindowsCaptionButton&) = delete;
WindowsCaptionButton& operator=(const WindowsCaptionButton&) = delete;
~WindowsCaptionButton() override;
// views::Button:
gfx::Size CalculatePreferredSize(
const views::SizeBounds& available_size) const override;
void OnPaintBackground(gfx::Canvas* canvas) override;
void PaintButtonContents(gfx::Canvas* canvas) override;
private:
std::unique_ptr<Windows10IconPainter> CreateIconPainter();
// Returns the amount we should visually reserve on the left (right in RTL)
// for spacing between buttons. We do this instead of repositioning the
// buttons to avoid the sliver of deadspace that would result.
int GetBetweenButtonSpacing() const;
// Returns the order in which this button will be displayed (with 0 being
// drawn farthest to the left, and larger indices being drawn to the right of
// smaller indices).
int GetButtonDisplayOrderIndex() const;
// The base color to use for the button symbols and background blending. Uses
// the more readable of black and white.
SkColor GetBaseForegroundColor() const;
// Paints the minimize/maximize/restore/close icon for the button.
void PaintSymbol(gfx::Canvas* canvas);
raw_ptr<BrowserFrameViewWin> frame_view_;
std::unique_ptr<Windows10IconPainter> icon_painter_;
ViewID button_type_;
};
#endif // CHROME_BROWSER_UI_VIEWS_FRAME_WINDOWS_CAPTION_BUTTON_H_
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