mus: Implement Window Server Capture

components/mus/public/interfaces/window_tree.mojom

 // Copyright 2014 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.
 
 module mus.mojom;
 
 import "components/mus/public/interfaces/compositor_frame.mojom";
 import "components/mus/public/interfaces/input_events.mojom";
 import "components/mus/public/interfaces/mus_constants.mojom";
 import "components/mus/public/interfaces/surface_id.mojom";
@@ skipping 78 matching lines @@
   //
   // TODO(erg): Once we have default values in mojo, make this take a map of
   // properties.
   NewWindow(uint32 change_id, uint32 window_id);
 
   // Deletes a window. This does not recurse. No hierarchy change notifications
   // are sent as a result of this. Only the connection that created the window
   // can delete it.
   DeleteWindow(uint32 window_id) => (bool success);
 
+  // Requests input event capture for the given |window_id|.
+  SetCapture(uint32 change_id, uint32 window_id);
+
+  // Releases input event capture for the given |window_id|.
+  ReleaseCapture(uint32 change_id, uint32 window_id);
+
   // Sets the specified bounds of the specified window.
   SetWindowBounds(uint32 change_id, uint32 window_id, mojo.Rect bounds);
 
   // Sets the insets of the client area of the specified window.
   SetClientArea(uint32 window_id, mojo.Insets insets);
 
   // Sets the visibility of the specified window to |visible|. Connections are
   // allowed to change the visibility of any window they have created, as well
   // as any of their roots.
   SetWindowVisibility(uint32 window_id, bool visible) => (bool success);
@@ skipping 138 matching lines @@
   // Invoked when the application embedded at |window| is disconnected. In other
   // words the embedded app closes the connection to the server. This is called
   // on the connection that created |window| as well as any ancestors that have
   // the embed root policy.
   OnEmbeddedAppDisconnected(uint32 window);
 
   // Sent when another connection is embedded in the Window this connection was
   // previously embedded in. See Embed() for more information.
   OnUnembed();
 
+  // Sent when a window loses capture.
+  OnLostCapture(uint32 window);
+
   // Invoked when a window's bounds have changed.
   OnWindowBoundsChanged(uint32 window,
                         mojo.Rect old_bounds,
                         mojo.Rect new_bounds);
 
   OnClientAreaChanged(uint32 window_id,
                       mojo.Insets old_client_area,
                       mojo.Insets new_client_area);
 
   OnTransientWindowAdded(uint32 window_id,
@@ skipping 61 matching lines @@
   // WindowManager interface once we get associated interfaces.
 
   // Calls to SetWindowBounds() for windows owned by the window manager end up
   // here. The window manager should reply with WmResponse() as appropriate.
   WmSetBounds(uint32 change_id, uint32 window_id, mojo.Rect bounds);
   WmSetProperty(uint32 change_id,
                 uint32 window_id,
                 string name,
                 array<uint8>? value);
 };