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// Copyright (c) 2012 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 ASH_FRAME_NON_CLIENT_FRAME_VIEW_ASH_H_
#define ASH_FRAME_NON_CLIENT_FRAME_VIEW_ASH_H_
#include <memory>
#include "ash/ash_export.h"
#include "ash/frame/caption_buttons/caption_button_model.h"
#include "ash/frame/header_view.h"
#include "ash/public/interfaces/window_style.mojom.h"
#include "ash/shell_observer.h"
#include "ash/wm/splitview/split_view_controller.h"
#include "base/macros.h"
#include "base/optional.h"
#include "third_party/skia/include/core/SkColor.h"
#include "ui/views/window/non_client_view.h"
namespace views {
class Widget;
}
namespace ash {
class FrameCaptionButtonContainerView;
class HeaderView;
class ImmersiveFullscreenController;
class ImmersiveFullscreenControllerDelegate;
class NonClientFrameViewAshImmersiveHelper;
// A NonClientFrameView used for packaged apps, dialogs and other non-browser
// windows. It supports immersive fullscreen. When in immersive fullscreen, the
// client view takes up the entire widget and the window header is an overlay.
// The window header overlay slides onscreen when the user hovers the mouse at
// the top of the screen. See also views::CustomFrameView and
// BrowserNonClientFrameViewAsh.
class ASH_EXPORT NonClientFrameViewAsh : public views::NonClientFrameView,
public ShellObserver,
public SplitViewController::Observer {
public:
// Internal class name.
static const char kViewClassName[];
// |control_immersive| controls whether ImmersiveFullscreenController is
// created for the NonClientFrameViewAsh; if true and a WindowStateDelegate
// has not been set on the WindowState associated with |frame|, then an
// ImmersiveFullscreenController is created.
// If ImmersiveFullscreenControllerDelegate is not supplied, HeaderView is
// used as the ImmersiveFullscreenControllerDelegate.
explicit NonClientFrameViewAsh(
views::Widget* frame,
ImmersiveFullscreenControllerDelegate* immersive_delegate = nullptr,
bool control_immersive = true,
mojom::WindowStyle window_style = mojom::WindowStyle::DEFAULT,
std::unique_ptr<CaptionButtonModel> model = nullptr);
~NonClientFrameViewAsh() override;
// Sets the caption button modeland updates the caption buttons.
void SetCaptionButtonModel(std::unique_ptr<CaptionButtonModel> model);
// Inits |immersive_fullscreen_controller| so that the controller reveals
// and hides |header_view_| in immersive fullscreen.
// NonClientFrameViewAsh does not take ownership of
// |immersive_fullscreen_controller|.
void InitImmersiveFullscreenControllerForView(
ImmersiveFullscreenController* immersive_fullscreen_controller);
// Sets the active and inactive frame colors. Note the inactive frame color
// will have some transparency added when the frame is drawn.
void SetFrameColors(SkColor active_frame_color, SkColor inactive_frame_color);
// Sets the height of the header. If |height| has no value (the default), the
// preferred height is used.
void SetHeaderHeight(base::Optional<int> height);
// Get the view of the header.
HeaderView* GetHeaderView();
// Calculate the client bounds for given window bounds.
gfx::Rect GetClientBoundsForWindowBounds(
const gfx::Rect& window_bounds) const;
// 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, gfx::Path* window_mask) override;
void ResetWindowControls() override;
void UpdateWindowIcon() override;
void UpdateWindowTitle() override;
void SizeConstraintsChanged() override;
void ActivationChanged(bool active) override;
// views::View:
gfx::Size CalculatePreferredSize() const override;
void Layout() override;
const char* GetClassName() const override;
gfx::Size GetMinimumSize() const override;
gfx::Size GetMaximumSize() const override;
void SchedulePaintInRect(const gfx::Rect& r) override;
void SetVisible(bool visible) override;
// If |paint| is false, we should not paint the header. Used for overview mode
// with OnOverviewModeStarting() and OnOverviewModeEnded() to hide/show the
// header of v2 and ARC apps.
virtual void SetShouldPaintHeader(bool paint);
// ShellObserver:
void OnOverviewModeStarting() override;
void OnOverviewModeEnded() override;
// SplitViewController::Observer:
void OnSplitViewStateChanged(SplitViewController::State previous_state,
SplitViewController::State state) override;
const views::View* GetAvatarIconViewForTest() const;
SkColor GetActiveFrameColorForTest() const;
SkColor GetInactiveFrameColorForTest() const;
views::Widget* frame() { return frame_; }
protected:
// Called when overview mode or split view state changed. If overview mode and
// split view mode are both active at the same time, the header of the window
// in split view should be visible, but the headers of other windows in
// overview are not.
void UpdateHeaderView();
private:
class OverlayView;
friend class NonClientFrameViewAshSizeLock;
friend class NonClientFrameViewAshTestWidgetDelegate;
friend class TestWidgetConstraintsDelegate;
// views::NonClientFrameView:
bool DoesIntersectRect(const views::View* target,
const gfx::Rect& rect) const override;
// Returns the container for the minimize/maximize/close buttons that is held
// by the HeaderView. Used in testing.
FrameCaptionButtonContainerView* GetFrameCaptionButtonContainerViewForTest();
// Height from top of window to top of client area.
int NonClientTopBorderHeight() const;
// Not owned.
views::Widget* frame_;
// View which contains the title and window controls.
HeaderView* header_view_;
OverlayView* overlay_view_;
ImmersiveFullscreenControllerDelegate* immersive_delegate_;
static bool use_empty_minimum_size_for_test_;
// Track whether the device is in overview mode. Set this to true when
// overview mode started and false when overview mode finished. Use this to
// check whether we should paint when splitview state changes instead of
// Shell::Get()->window_selector_controller()->IsSelecting() because the later
// actually may be still be false after overview mode has started.
bool in_overview_mode_ = false;
std::unique_ptr<NonClientFrameViewAshImmersiveHelper> immersive_helper_;
DISALLOW_COPY_AND_ASSIGN(NonClientFrameViewAsh);
};
} // namespace ash
#endif // ASH_FRAME_NON_CLIENT_FRAME_VIEW_ASH_H_