1 // Copyright 2013 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef CONTENT_PUBLIC_BROWSER_ANDROID_SYNCHRONOUS_COMPOSITOR_CLIENT_H_ 6 #define CONTENT_PUBLIC_BROWSER_ANDROID_SYNCHRONOUS_COMPOSITOR_CLIENT_H_ 7 8 #include "base/basictypes.h" 9 #include "ui/gfx/vector2d_f.h" 10 11 namespace content { 12 13 class SynchronousCompositor; 14 15 class SynchronousCompositorClient { 16 public: 17 // Indication to the client that |compositor| is now initialized on the 18 // compositor thread, and open for business. 19 virtual void DidInitializeCompositor(SynchronousCompositor* compositor) = 0; 20 21 // Indication to the client that |compositor| is going out of scope, and 22 // must not be accessed within or after this call. 23 // NOTE if the client goes away before the compositor it must call 24 // SynchronousCompositor::SetClient(NULL) to release the back pointer. 25 virtual void DidDestroyCompositor(SynchronousCompositor* compositor) = 0; 26 27 // See LayerScrollOffsetDelegate for details. 28 virtual void SetMaxRootLayerScrollOffset( 29 gfx::Vector2dF max_scroll_offset) = 0; 30 virtual void SetTotalRootLayerScrollOffset(gfx::Vector2dF new_value) = 0; 31 virtual gfx::Vector2dF GetTotalRootLayerScrollOffset() = 0; 32 virtual bool IsExternalFlingActive() const = 0; 33 virtual void SetRootLayerPageScaleFactor(float page_scale_factor) = 0; 34 virtual void SetRootLayerScrollableSize(gfx::SizeF scrollable_size) = 0; 35 36 virtual void DidOverscroll(gfx::Vector2dF accumulated_overscroll, 37 gfx::Vector2dF latest_overscroll_delta, 38 gfx::Vector2dF current_fling_velocity) = 0; 39 40 // When true, should periodically call 41 // SynchronousCompositorOutputSurface::DemandDrawHw. Note that this value 42 // can change inside DemandDrawHw call. 43 virtual void SetContinuousInvalidate(bool invalidate) = 0; 44 45 virtual void DidUpdateContent() = 0; 46 47 protected: 48 SynchronousCompositorClient() {} 49 virtual ~SynchronousCompositorClient() {} 50 51 private: 52 DISALLOW_COPY_AND_ASSIGN(SynchronousCompositorClient); 53 }; 54 55 } // namespace content 56 57 #endif // CONTENT_PUBLIC_BROWSER_ANDROID_SYNCHRONOUS_COMPOSITOR_CLIENT_H_ 58