Promotes remaining global window manager state into WindowManagerState

components/mus/ws/event_dispatcher_delegate.h

 // 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.
 
 #ifndef COMPONENTS_MUS_WS_EVENT_DISPATCHER_DELEGATE_H_
 #define COMPONENTS_MUS_WS_EVENT_DISPATCHER_DELEGATE_H_
 
 #include <stdint.h>
 
 #include "components/mus/common/types.h"
 
+namespace gfx {
+class Point;
+}
+
 namespace ui {
 class Event;
 }
 
 namespace mus {
 namespace ws {
 
 class Accelerator;
 class ServerWindow;
 
 // Used by EventDispatcher for mocking in tests.
 class EventDispatcherDelegate {
  public:
   virtual void OnAccelerator(uint32_t accelerator, const ui::Event& event) = 0;
 
   virtual void SetFocusedWindowFromEventDispatcher(ServerWindow* window) = 0;
   virtual ServerWindow* GetFocusedWindowForEventDispatcher() = 0;
 
-  // Called when capture should be set on the native display.
-  virtual void SetNativeCapture() = 0;
+  // Called when capture should be set on the native display. |window| is the
+  // window capture is being set on.
+  virtual void SetNativeCapture(ServerWindow* window) = 0;
   // Called when the native display is having capture released. There is no
   // longer a ServerWindow holding capture.
   virtual void ReleaseNativeCapture() = 0;
   // Called when |window| has lost capture. The native display may still be
   // holding capture. The delegate should not change native display capture.
-  // ReleaseNativeCapture is invoked if appropriate.
+  // ReleaseNativeCapture() is invoked if appropriate.
   virtual void OnServerWindowCaptureLost(ServerWindow* window) = 0;
 
   virtual void OnMouseCursorLocationChanged(const gfx::Point& point) = 0;
 
   // Dispatches an event to the specific client.
   virtual void DispatchInputEventToWindow(ServerWindow* target,
                                           ClientSpecificId client_id,
                                           const ui::Event& event,
                                           Accelerator* accelerator) = 0;
 
   // Returns the id of the client to send events to. |in_nonclient_area| is
   // true if the event occurred in the non-client area of the window.
   virtual ClientSpecificId GetEventTargetClientId(const ServerWindow* window,
                                                   bool in_nonclient_area) = 0;
 
+  // Returns the window to start searching from at the specified location, or
+  // null if there is a no window containing |location|.
+  virtual ServerWindow* GetRootWindowContaining(const gfx::Point& location) = 0;
+
   // Called when event dispatch could not find a target. OnAccelerator may still
   // be called.
   virtual void OnEventTargetNotFound(const ui::Event& event) = 0;
 
  protected:
   virtual ~EventDispatcherDelegate() {}
 };
 
 }  // namespace ws
 }  // namespace mus
 
 #endif  // COMPONENTS_MUS_WS_EVENT_DISPATCHER_DELEGATE_H_