1 // Copyright (c) 2012 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 UI_AURA_CLIENT_CAPTURE_DELEGATE_H_ 6 #define UI_AURA_CLIENT_CAPTURE_DELEGATE_H_ 7 8 #include "ui/aura/aura_export.h" 9 10 namespace aura { 11 class Window; 12 namespace client { 13 14 // This interface provides API to change the root Window's capture state without 15 // exposing them as RootWindow API. 16 class AURA_EXPORT CaptureDelegate { 17 public: 18 // Called when a capture is set on |new_capture| and/or a capture is 19 // released on |old_capture|. 20 // NOTE: |old_capture| and |new_capture| are not necessarily contained in the 21 // window hierarchy of the delegate. 22 virtual void UpdateCapture(aura::Window* old_capture, 23 aura::Window* new_capture) = 0; 24 25 // Called when another root gets capture. 26 virtual void OnOtherRootGotCapture() = 0; 27 28 // Sets/Release a native capture on host windows. 29 virtual void SetNativeCapture() = 0; 30 virtual void ReleaseNativeCapture() = 0; 31 32 protected: ~CaptureDelegate()33 virtual ~CaptureDelegate() {} 34 }; 35 36 } // namespace client 37 } // namespace aura 38 39 #endif // UI_AURA_CLIENT_CAPTURE_DELEGATE_H_ 40