View synchronization

mojo/services/public/cpp/view_manager/lib/view_manager_synchronizer.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 MOJO_SERVICES_PUBLIC_CPP_VIEW_MANAGER_LIB_VIEW_MANAGER_SYNCHRONIZER_H_
 #define MOJO_SERVICES_PUBLIC_CPP_VIEW_MANAGER_LIB_VIEW_MANAGER_SYNCHRONIZER_H_
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_vector.h"
 #include "base/memory/weak_ptr.h"
@@ skipping 12 matching lines @@
 class ViewManagerTransaction;
 
 // Manages the connection with the View Manager service.
 class ViewManagerSynchronizer : public IViewManagerClient {
  public:
   explicit ViewManagerSynchronizer(ViewManager* view_manager);
   virtual ~ViewManagerSynchronizer();
 
   bool connected() const { return connected_; }
 
-  // API exposed to the node implementation that pushes local changes to the
-  // service.
+  // API exposed to the node/view implementations that pushes local changes to
+  // the service.
   TransportNodeId CreateViewTreeNode();
   void DestroyViewTreeNode(TransportNodeId node_id);
 
+  TransportViewId CreateView();
+  void DestroyView(TransportViewId view_id);
+
   // These methods take TransportIds. For views owned by the current connection,
   // the connection id high word can be zero. In all cases, the TransportId 0x1
   // refers to the root node.
   void AddChild(TransportNodeId child_id, TransportNodeId parent_id);
   void RemoveChild(TransportNodeId child_id, TransportNodeId parent_id);
 
   bool OwnsNode(TransportNodeId id) const;
+  bool OwnsView(TransportViewId id) const;
+
+  void SetActiveView(TransportNodeId node_id, TransportViewId view_id);
 
  private:
   friend class ViewManagerTransaction;
   typedef ScopedVector<ViewManagerTransaction> Transactions;
 
   // Overridden from IViewManagerClient:
   virtual void OnConnectionEstablished(
       TransportConnectionId connection_id,
       TransportChangeId next_server_change_id) OVERRIDE;
   virtual void OnNodeHierarchyChanged(
       uint32 node_id,
       uint32 new_parent_id,
       uint32 old_parent_id,
       TransportChangeId server_change_id,
       TransportChangeId client_change_id) OVERRIDE;
   virtual void OnNodeDeleted(TransportNodeId node_id,
                              TransportChangeId server_change_id,
                              TransportChangeId client_change_id) OVERRIDE;
   virtual void OnNodeViewReplaced(uint32_t node,
                                   uint32_t new_view_id,
                                   uint32_t old_view_id,
                                   TransportChangeId client_change_id) OVERRIDE;
+  virtual void OnViewDeleted(uint32_t node_id,
+                             uint32_t server_change_id,
+                             uint32_t client_change_id) OVERRIDE;
 
   // Sync the client model with the service by enumerating the pending
   // transaction queue and applying them in order.
   void Sync();
 
   // Used by individual transactions to generate a connection-specific change
   // id.
   // TODO(beng): What happens when there are more than sizeof(int) changes in
   //             the queue?
   TransportChangeId GetNextClientChangeId();
@@ skipping 22 matching lines @@
   IViewManagerPtr service_;
 
   DISALLOW_COPY_AND_ASSIGN(ViewManagerSynchronizer);
 };
 
 }  // namespace view_manager
 }  // namespace services
 }  // namespace mojo
 
 #endif  // MOJO_SERVICES_PUBLIC_CPP_VIEW_MANAGER_LIB_VIEW_MANAGER_SYNCHRONIZER_H_