| // Copyright 2015 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 COMPONENTS_EXO_SUB_SURFACE_H_ |
| #define COMPONENTS_EXO_SUB_SURFACE_H_ |
| |
| #include <memory> |
| |
| #include "base/observer_list.h" |
| #include "components/exo/surface_delegate.h" |
| #include "components/exo/surface_observer.h" |
| #include "ui/base/class_property.h" |
| #include "ui/gfx/geometry/point.h" |
| #include "ui/gfx/geometry/point_f.h" |
| #include "ui/gfx/geometry/size_f.h" |
| |
| namespace base { |
| namespace trace_event { |
| class TracedValue; |
| } |
| } // namespace base |
| |
| namespace exo { |
| class Surface; |
| class SubSurfaceObserver; |
| |
| // This class provides functions for treating a surface as a sub-surface. A |
| // sub-surface has one parent surface. |
| class SubSurface : public SurfaceDelegate, |
| public SurfaceObserver, |
| public ui::PropertyHandler { |
| public: |
| SubSurface(Surface* surface, Surface* parent); |
| |
| SubSurface(const SubSurface&) = delete; |
| SubSurface& operator=(const SubSurface&) = delete; |
| |
| ~SubSurface() override; |
| |
| // This schedules a sub-surface position change. The sub-surface will be |
| // moved so, that its origin (top-left corner pixel) will be at the |position| |
| // of the parent surface coordinate system. |
| void SetPosition(const gfx::PointF& position); |
| |
| // This removes sub-surface from the stack, and puts it back just above the |
| // reference surface, changing the z-order of the sub-surfaces. The reference |
| // surface must be one of the sibling surfaces, or the parent surface. |
| void PlaceAbove(Surface* reference); |
| |
| // This removes sub-surface from the stack, and puts it back just below the |
| // sibling surface. |
| void PlaceBelow(Surface* sibiling); |
| |
| // Change the commit behaviour of the sub-surface. |
| void SetCommitBehavior(bool synchronized); |
| |
| // Returns a trace value representing the state of the surface. |
| std::unique_ptr<base::trace_event::TracedValue> AsTracedValue() const; |
| |
| // Overridden from SurfaceDelegate: |
| void OnSurfaceCommit() override; |
| bool IsSurfaceSynchronized() const override; |
| bool IsInputEnabled(Surface* surface) const override; |
| void OnSetFrame(SurfaceFrameType type) override {} |
| void OnSetFrameColors(SkColor active_color, SkColor inactive_color) override { |
| } |
| void OnSetParent(Surface* parent, const gfx::Point& position) override; |
| void OnSetStartupId(const char* startup_id) override {} |
| void OnSetApplicationId(const char* application_id) override {} |
| void SetUseImmersiveForFullscreen(bool value) override {} |
| void OnActivationRequested() override {} |
| void OnNewOutputAdded() override {} |
| void OnSetServerStartResize() override {} |
| void ShowSnapPreviewToPrimary() override {} |
| void ShowSnapPreviewToSecondary() override {} |
| void HideSnapPreview() override {} |
| void SetSnappedToPrimary() override {} |
| void SetSnappedToSecondary() override {} |
| void UnsetSnap() override {} |
| void SetCanGoBack() override {} |
| void UnsetCanGoBack() override {} |
| void SetPip() override {} |
| void UnsetPip() override {} |
| void SetAspectRatio(const gfx::SizeF& aspect_ratio) override {} |
| void MoveToDesk(int desk_index) override {} |
| void SetVisibleOnAllWorkspaces() override {} |
| void SetInitialWorkspace(const char* initial_workspace) override {} |
| void Pin(bool trusted) override {} |
| void Unpin() override {} |
| void SetSystemModal(bool system_modal) override {} |
| SecurityDelegate* GetSecurityDelegate() override; |
| |
| // Overridden from SurfaceObserver: |
| void OnSurfaceDestroying(Surface* surface) override; |
| |
| // SubSurface Observers |
| void AddSubSurfaceObserver(SubSurfaceObserver* observer); |
| void RemoveSubSurfaceObserver(SubSurfaceObserver* observer); |
| |
| private: |
| Surface* surface_; |
| Surface* parent_; |
| bool is_synchronized_ = true; |
| |
| // Surface observer list. Surface does not own the observers. |
| base::ObserverList<SubSurfaceObserver> observers_; |
| }; |
| |
| } // namespace exo |
| |
| #endif // COMPONENTS_EXO_SUB_SURFACE_H_ |