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// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROMEOS_UI_FRAME_NON_CLIENT_FRAME_VIEW_BASE_H_
#define CHROMEOS_UI_FRAME_NON_CLIENT_FRAME_VIEW_BASE_H_
#include "base/callback_list.h"
#include "base/memory/raw_ptr.h"
#include "chromeos/ui/frame/header_view.h"
#include "ui/base/metadata/metadata_header_macros.h"
#include "ui/base/metadata/metadata_impl_macros.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/views/view.h"
#include "ui/views/view_targeter.h"
#include "ui/views/widget/widget.h"
#include "ui/views/window/non_client_view.h"
namespace display {
class DisplayObserver;
class ScopedDisplayObserver;
enum class TabletState;
} // namespace display
namespace chromeos {
class NonClientFrameViewBase : public views::NonClientFrameView,
public display::DisplayObserver {
METADATA_HEADER(NonClientFrameViewBase, views::NonClientFrameView)
public:
explicit NonClientFrameViewBase(views::Widget* frame);
NonClientFrameViewBase(const NonClientFrameViewBase&) = delete;
NonClientFrameViewBase& operator=(const NonClientFrameViewBase&) = delete;
~NonClientFrameViewBase() override;
// views::NonClientFrameView:
gfx::Rect GetBoundsForClientView() const override;
gfx::Rect GetWindowBoundsForClientBounds(
const gfx::Rect& client_bounds) const override;
int NonClientHitTest(const gfx::Point& point) override;
void GetWindowMask(const gfx::Size& size, SkPath* window_mask) override;
void ResetWindowControls() override;
void UpdateWindowTitle() override;
void SizeConstraintsChanged() override;
views::View::Views GetChildrenInZOrder() override;
gfx::Size CalculatePreferredSize(
const views::SizeBounds& available_size) const override;
void Layout(PassKey) override;
gfx::Size GetMinimumSize() const override;
gfx::Size GetMaximumSize() const override;
void OnThemeChanged() override;
// display::DisplayObserver:
void OnDisplayTabletStateChanged(display::TabletState state) override;
// Get the view of the header.
HeaderView* GetHeaderView();
// Height from top of window to top of client area.
int NonClientTopBorderHeight() const;
bool GetFrameEnabled() const { return frame_enabled_; }
protected:
class OverlayView;
virtual void UpdateDefaultFrameColors();
// views::NonClientFrameView:
bool DoesIntersectRect(const views::View* target,
const gfx::Rect& rect) const override;
const raw_ptr<views::Widget> frame_;
// View which contains the title and window controls.
raw_ptr<HeaderView> header_view_ = nullptr;
raw_ptr<OverlayView> overlay_view_ = nullptr;
bool frame_enabled_ = true;
private:
// Called when |frame_|'s "paint as active" state has changed.
void PaintAsActiveChanged();
base::CallbackListSubscription paint_as_active_subscription_ =
frame_->RegisterPaintAsActiveChangedCallback(
base::BindRepeating(&NonClientFrameViewBase::PaintAsActiveChanged,
base::Unretained(this)));
display::ScopedDisplayObserver display_observer_{this};
};
// View which takes up the entire widget and contains the HeaderView. HeaderView
// is a child of OverlayView to avoid creating a larger texture than necessary
// when painting the HeaderView to its own layer.
class NonClientFrameViewBase::OverlayView : public views::View,
public views::ViewTargeterDelegate {
METADATA_HEADER(OverlayView, views::View)
public:
explicit OverlayView(HeaderView* header_view);
OverlayView(const OverlayView&) = delete;
OverlayView& operator=(const OverlayView&) = delete;
~OverlayView() override;
// views::View:
void Layout(PassKey) override;
private:
// views::ViewTargeterDelegate:
bool DoesIntersectRect(const views::View* target,
const gfx::Rect& rect) const override;
raw_ptr<HeaderView> header_view_;
};
} // namespace chromeos
#endif // CHROMEOS_UI_FRAME_NON_CLIENT_FRAME_VIEW_BASE_H_
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