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// 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_VIEW_MANAGER_VIEW_MANAGER_CONNECTION_H_
#define MOJO_SERVICES_VIEW_MANAGER_VIEW_MANAGER_CONNECTION_H_
#include <set>
#include "base/basictypes.h"
#include "mojo/public/cpp/shell/service.h"
#include "mojo/services/public/interfaces/view_manager/view_manager.mojom.h"
#include "mojo/services/view_manager/ids.h"
#include "mojo/services/view_manager/node_delegate.h"
#include "mojo/services/view_manager/view_manager_export.h"
namespace mojo {
namespace services {
namespace view_manager {
class Node;
class RootNodeManager;
class View;
// Manages a connection from the client.
class MOJO_VIEW_MANAGER_EXPORT ViewManagerConnection
: public ServiceConnection<IViewManager, ViewManagerConnection,
RootNodeManager>,
public NodeDelegate {
public:
ViewManagerConnection();
virtual ~ViewManagerConnection();
TransportConnectionId id() const { return id_; }
// Invoked from Service when connection is established.
void Initialize(
ServiceConnector<ViewManagerConnection, RootNodeManager>* service_factory,
ScopedMessagePipeHandle client_handle);
// Returns the Node with the specified id.
Node* GetNode(const NodeId& id);
// Returns the View with the specified id.
View* GetView(const ViewId& id);
// Notifies the client of a hierarchy change.
void NotifyNodeHierarchyChanged(const NodeId& node,
const NodeId& new_parent,
const NodeId& old_parent,
TransportChangeId change_id);
void NotifyNodeViewReplaced(const NodeId& node,
const ViewId& new_view_id,
const ViewId& old_view_id,
TransportChangeId change_id);
private:
typedef std::map<TransportConnectionSpecificNodeId, Node*> NodeMap;
typedef std::map<TransportConnectionSpecificViewId, View*> ViewMap;
// Deletes a node owned by this connection. Returns true on success. |source|
// is the connection that originated the change.
bool DeleteNodeImpl(ViewManagerConnection* source,
const NodeId& node_id,
TransportChangeId change_id);
// Deletes a view owned by this connection. Returns true on success. |source|
// is the connection that originated the change.
bool DeleteViewImpl(ViewManagerConnection* source,
const ViewId& view_id,
TransportChangeId change_id);
// Sets the view associated with a node.
bool SetViewImpl(const NodeId& node_id,
const ViewId& view_id,
TransportChangeId change_id);
// Overridden from IViewManager:
virtual void CreateNode(TransportConnectionSpecificNodeId node_id,
const Callback<void(bool)>& callback) OVERRIDE;
virtual void DeleteNode(TransportNodeId transport_node_id,
TransportChangeId change_id,
const Callback<void(bool)>& callback) OVERRIDE;
virtual void AddNode(TransportNodeId parent_id,
TransportNodeId child_id,
TransportChangeId change_id,
const Callback<void(bool)>& callback) OVERRIDE;
virtual void RemoveNodeFromParent(
TransportNodeId node_id,
TransportChangeId change_id,
const Callback<void(bool)>& callback) OVERRIDE;
virtual void GetNodeTree(
TransportNodeId node_id,
const Callback<void(Array<INode>)>& callback) OVERRIDE;
virtual void CreateView(TransportConnectionSpecificViewId view_id,
const Callback<void(bool)>& callback) OVERRIDE;
virtual void DeleteView(TransportViewId transport_view_id,
TransportChangeId change_id,
const Callback<void(bool)>& callback) OVERRIDE;
virtual void SetView(TransportNodeId transport_node_id,
TransportViewId transport_view_id,
TransportChangeId change_id,
const Callback<void(bool)>& callback) OVERRIDE;
virtual void SetViewContents(TransportViewId view_id,
ScopedSharedBufferHandle buffer,
uint32_t buffer_size) OVERRIDE;
// Overridden from NodeDelegate:
virtual void OnNodeHierarchyChanged(const NodeId& node,
const NodeId& new_parent,
const NodeId& old_parent) OVERRIDE;
virtual void OnNodeViewReplaced(const NodeId& node,
const ViewId& new_view_id,
const ViewId& old_view_id) OVERRIDE;
// Id of this connection as assigned by RootNodeManager. Assigned in
// Initialize().
TransportConnectionId id_;
NodeMap node_map_;
ViewMap view_map_;
DISALLOW_COPY_AND_ASSIGN(ViewManagerConnection);
};
} // namespace view_manager
} // namespace services
} // namespace mojo
#endif // MOJO_SERVICES_VIEW_MANAGER_VIEW_MANAGER_CONNECTION_H_
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