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// Copyright 2011 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 CC_TREES_PROXY_H_
#define CC_TREES_PROXY_H_
#include <string>
#include "base/logging.h"
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "base/threading/platform_thread.h"
#include "base/time/time.h"
#include "base/values.h"
#include "cc/base/cc_export.h"
#include "cc/input/top_controls_state.h"
#include "cc/scheduler/begin_frame_source.h"
#include "cc/trees/task_runner_provider.h"
namespace gfx {
class Rect;
class Vector2d;
}
namespace cc {
class BeginFrameSource;
class LayerTreeDebugState;
class OutputSurface;
struct RendererCapabilities;
// Abstract interface responsible for proxying commands from the main-thread
// side of the compositor over to the compositor implementation.
class CC_EXPORT Proxy {
public:
virtual ~Proxy() {}
virtual void FinishAllRendering() = 0;
virtual bool IsStarted() const = 0;
virtual bool CommitToActiveTree() const = 0;
// Will call LayerTreeHost::OnCreateAndInitializeOutputSurfaceAttempted
// with the result of this function.
virtual void SetOutputSurface(OutputSurface* output_surface) = 0;
virtual void ReleaseOutputSurface() = 0;
virtual void SetVisible(bool visible) = 0;
virtual const RendererCapabilities& GetRendererCapabilities() const = 0;
virtual void SetNeedsAnimate() = 0;
virtual void SetNeedsUpdateLayers() = 0;
virtual void SetNeedsCommit() = 0;
virtual void SetNeedsRedraw(const gfx::Rect& damage_rect) = 0;
virtual void SetNextCommitWaitsForActivation() = 0;
virtual void NotifyInputThrottledUntilCommit() = 0;
// Defers commits until it is reset. It is only supported when using a
// scheduler.
virtual void SetDeferCommits(bool defer_commits) = 0;
virtual void MainThreadHasStoppedFlinging() = 0;
virtual bool CommitRequested() const = 0;
virtual bool BeginMainFrameRequested() const = 0;
// Must be called before using the proxy.
virtual void Start(
scoped_ptr<BeginFrameSource> external_begin_frame_source) = 0;
virtual void Stop() = 0; // Must be called before deleting the proxy.
virtual bool SupportsImplScrolling() const = 0;
virtual void SetChildrenNeedBeginFrames(bool children_need_begin_frames) = 0;
virtual void SetAuthoritativeVSyncInterval(
const base::TimeDelta& interval) = 0;
virtual void UpdateTopControlsState(TopControlsState constraints,
TopControlsState current,
bool animate) = 0;
virtual void SetOutputIsSecure(bool output_is_secure) = 0;
// Testing hooks
virtual bool MainFrameWillHappenForTesting() = 0;
};
} // namespace cc
#endif // CC_TREES_PROXY_H_
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