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// Copyright 2013 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 CONTENT_PUBLIC_BROWSER_ANDROID_SYNCHRONOUS_COMPOSITOR_CLIENT_H_
#define CONTENT_PUBLIC_BROWSER_ANDROID_SYNCHRONOUS_COMPOSITOR_CLIENT_H_
#include "base/basictypes.h"
#include "ui/gfx/geometry/size_f.h"
#include "ui/gfx/vector2d_f.h"
namespace content {
class SynchronousCompositor;
class SynchronousCompositorClient {
public:
// Indication to the client that |compositor| is now initialized on the
// compositor thread, and open for business.
virtual void DidInitializeCompositor(SynchronousCompositor* compositor) = 0;
// Indication to the client that |compositor| is going out of scope, and
// must not be accessed within or after this call.
// NOTE if the client goes away before the compositor it must call
// SynchronousCompositor::SetClient(NULL) to release the back pointer.
virtual void DidDestroyCompositor(SynchronousCompositor* compositor) = 0;
// See LayerScrollOffsetDelegate for details.
virtual gfx::Vector2dF GetTotalRootLayerScrollOffset() = 0;
virtual void UpdateRootLayerState(const gfx::Vector2dF& total_scroll_offset,
const gfx::Vector2dF& max_scroll_offset,
const gfx::SizeF& scrollable_size,
float page_scale_factor,
float min_page_scale_factor,
float max_page_scale_factor) = 0;
virtual bool IsExternalFlingActive() const = 0;
virtual void DidOverscroll(gfx::Vector2dF accumulated_overscroll,
gfx::Vector2dF latest_overscroll_delta,
gfx::Vector2dF current_fling_velocity) = 0;
// When true, should periodically call
// SynchronousCompositorOutputSurface::DemandDrawHw. Note that this value
// can change inside DemandDrawHw call.
virtual void SetContinuousInvalidate(bool invalidate) = 0;
virtual void DidUpdateContent() = 0;
protected:
SynchronousCompositorClient() {}
virtual ~SynchronousCompositorClient() {}
private:
DISALLOW_COPY_AND_ASSIGN(SynchronousCompositorClient);
};
} // namespace content
#endif // CONTENT_PUBLIC_BROWSER_ANDROID_SYNCHRONOUS_COMPOSITOR_CLIENT_H_
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