blob: 59a201cf825b691bd278c18e7dc3b5b5f2f40952 [file] [log] [blame]
// 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.
#include <memory>
#include "base/macros.h"
#include "components/exo/surface_delegate.h"
#include "components/exo/surface_observer.h"
#include "ui/gfx/geometry/point.h"
namespace base {
namespace trace_event {
class TracedValue;
namespace exo {
class Surface;
// 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 {
SubSurface(Surface* surface, Surface* parent);
~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::Point& 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 {}
// Overridden from SurfaceObserver:
void OnSurfaceDestroying(Surface* surface) override;
Surface* surface_;
Surface* parent_;
bool is_synchronized_ = true;
} // namespace exo