electron/shell/browser/ui/views/win_caption_button.h

79 lines
2.6 KiB
C++

// Copyright (c) 2016 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.
// Modified from chrome/browser/ui/views/frame/windows_10_caption_button.h
#ifndef ELECTRON_SHELL_BROWSER_UI_VIEWS_WIN_CAPTION_BUTTON_H_
#define ELECTRON_SHELL_BROWSER_UI_VIEWS_WIN_CAPTION_BUTTON_H_
#include <memory>
#include "base/memory/raw_ptr.h"
#include "chrome/browser/ui/frame/window_frame_util.h"
#include "chrome/browser/ui/view_ids.h"
#include "shell/browser/ui/views/win_icon_painter.h"
#include "ui/base/metadata/metadata_header_macros.h"
#include "ui/base/metadata/metadata_impl_macros.h"
#include "ui/views/controls/button/button.h"
namespace gfx {
class Canvas;
}
namespace electron {
class WinFrameView;
class WinCaptionButton : public views::Button {
METADATA_HEADER(WinCaptionButton, views::Button)
public:
WinCaptionButton(PressedCallback callback,
WinFrameView* frame_view,
ViewID button_type,
const std::u16string& accessible_name);
~WinCaptionButton() override;
WinCaptionButton(const WinCaptionButton&) = delete;
WinCaptionButton& operator=(const WinCaptionButton&) = delete;
// views::Button:
gfx::Size CalculatePreferredSize(
const views::SizeBounds& available_size) const override;
void OnPaintBackground(gfx::Canvas* canvas) override;
void PaintButtonContents(gfx::Canvas* canvas) override;
gfx::Size GetSize() const;
void SetSize(gfx::Size size);
private:
std::unique_ptr<WinIconPainter> 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 GetBaseColor() const;
// Paints the minimize/maximize/restore/close icon for the button.
void PaintSymbol(gfx::Canvas* canvas);
raw_ptr<WinFrameView> frame_view_;
std::unique_ptr<WinIconPainter> icon_painter_;
ViewID button_type_;
int base_width_ = WindowFrameUtil::kWindowsCaptionButtonWidth;
int height_ = WindowFrameUtil::kWindowsCaptionButtonHeightRestored;
};
} // namespace electron
#endif // ELECTRON_SHELL_BROWSER_UI_VIEWS_WIN_CAPTION_BUTTON_H_