mus: Server-side implementation of modal windows

components/mus/ws/window_tree.h

 // 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.
 
 #ifndef COMPONENTS_MUS_WS_WINDOW_TREE_H_
 #define COMPONENTS_MUS_WS_WINDOW_TREE_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 110 matching lines @@
 
   // These functions are synchronous variants of those defined in the mojom. The
   // WindowTree implementations all call into these. See the mojom for details.
   bool SetCapture(const ClientWindowId& client_window_id);
   bool NewWindow(const ClientWindowId& client_window_id,
                  const std::map<std::string, std::vector<uint8_t>>& properties);
   bool AddWindow(const ClientWindowId& parent_id,
                  const ClientWindowId& child_id);
   bool AddTransientWindow(const ClientWindowId& window_id,
                           const ClientWindowId& transient_window_id);
+  bool SetModal(const ClientWindowId& window_id);
   std::vector<const ServerWindow*> GetWindowTree(
       const ClientWindowId& window_id) const;
   bool SetWindowVisibility(const ClientWindowId& window_id, bool visible);
   bool Embed(const ClientWindowId& window_id,
              mojom::WindowTreeClientPtr client,
              uint32_t policy_bitmask,
              ConnectionSpecificId* connection_id);
   void DispatchInputEvent(ServerWindow* target, mojom::EventPtr event);
 
   bool IsWaitingForNewTopLevelWindow(uint32_t wm_change_id);
@@ skipping 164 matching lines @@
                          mojo::Map<mojo::String, mojo::Array<uint8_t>>
                              transport_properties) override;
   void DeleteWindow(uint32_t change_id, Id transport_window_id) override;
   void AddWindow(uint32_t change_id, Id parent_id, Id child_id) override;
   void RemoveWindowFromParent(uint32_t change_id, Id window_id) override;
   void AddTransientWindow(uint32_t change_id,
                           Id window,
                           Id transient_window) override;
   void RemoveTransientWindowFromParent(uint32_t change_id,
                                        Id transient_window_id) override;
+  void SetModal(uint32_t change_id, Id window_id) override;
   void ReorderWindow(uint32_t change_Id,
                      Id window_id,
                      Id relative_window_id,
                      mojom::OrderDirection direction) override;
   void GetWindowTree(
       Id window_id,
       const mojo::Callback<void(mojo::Array<mojom::WindowDataPtr>)>& callback)
       override;
   void SetCapture(uint32_t change_id, Id window_id) override;
   void ReleaseCapture(uint32_t change_id, Id window_id) override;
@@ skipping 100 matching lines @@
 
   scoped_ptr<WaitingForTopLevelWindowInfo> waiting_for_top_level_window_info_;
 
   DISALLOW_COPY_AND_ASSIGN(WindowTree);
 };
 
 }  // namespace ws
 }  // namespace mus
 
 #endif  // COMPONENTS_MUS_WS_WINDOW_TREE_H_