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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef MOJO_SERVICES_VIEW_MANAGER_ROOT_NODE_MANAGER_H_ | 5 #ifndef MOJO_SERVICES_VIEW_MANAGER_CONNECTION_MANAGER_H_ |
| 6 #define MOJO_SERVICES_VIEW_MANAGER_ROOT_NODE_MANAGER_H_ | 6 #define MOJO_SERVICES_VIEW_MANAGER_CONNECTION_MANAGER_H_ |
| 7 | 7 |
| 8 #include <map> | 8 #include <map> |
| 9 #include <set> | 9 #include <set> |
| 10 | 10 |
| 11 #include "base/basictypes.h" | 11 #include "base/basictypes.h" |
| 12 #include "mojo/public/cpp/bindings/array.h" | 12 #include "mojo/public/cpp/bindings/array.h" |
| 13 #include "mojo/services/view_manager/display_manager.h" | 13 #include "mojo/services/view_manager/display_manager.h" |
| 14 #include "mojo/services/view_manager/ids.h" | 14 #include "mojo/services/view_manager/ids.h" |
| 15 #include "mojo/services/view_manager/node.h" | 15 #include "mojo/services/view_manager/server_view.h" |
| 16 #include "mojo/services/view_manager/node_delegate.h" | 16 #include "mojo/services/view_manager/server_view_delegate.h" |
| 17 #include "mojo/services/view_manager/view_manager_export.h" | 17 #include "mojo/services/view_manager/view_manager_export.h" |
| 18 | 18 |
| 19 namespace ui { | 19 namespace ui { |
| 20 class Event; | 20 class Event; |
| 21 } | 21 } |
| 22 | 22 |
| 23 namespace mojo { | 23 namespace mojo { |
| 24 | 24 |
| 25 class ApplicationConnection; | 25 class ApplicationConnection; |
| 26 | 26 |
| 27 namespace service { | 27 namespace service { |
| 28 | 28 |
| 29 class DisplayManagerDelegate; | 29 class DisplayManagerDelegate; |
| 30 class ViewManagerServiceImpl; | 30 class ViewManagerServiceImpl; |
| 31 | 31 |
| 32 // RootNodeManager is responsible for managing the set of | 32 // ConnectionManager manages the set of connections to the ViewManager (all the |
| 33 // ViewManagerServiceImpls as well as providing the root of the node hierarchy. | 33 // ViewManagerServiceImpls) as well as providing the root of the hierarchy. |
| 34 class MOJO_VIEW_MANAGER_EXPORT RootNodeManager : public NodeDelegate { | 34 class MOJO_VIEW_MANAGER_EXPORT ConnectionManager : public ServerViewDelegate { |
| 35 public: | 35 public: |
| 36 // Create when a ViewManagerServiceImpl is about to make a change. Ensures | 36 // Create when a ViewManagerServiceImpl is about to make a change. Ensures |
| 37 // clients are notified of the correct change id. | 37 // clients are notified correctly. |
| 38 class ScopedChange { | 38 class ScopedChange { |
| 39 public: | 39 public: |
| 40 ScopedChange(ViewManagerServiceImpl* connection, | 40 ScopedChange(ViewManagerServiceImpl* connection, |
| 41 RootNodeManager* root, | 41 ConnectionManager* connection_manager, |
| 42 bool is_delete_node); | 42 bool is_delete_view); |
| 43 ~ScopedChange(); | 43 ~ScopedChange(); |
| 44 | 44 |
| 45 ConnectionSpecificId connection_id() const { return connection_id_; } | 45 ConnectionSpecificId connection_id() const { return connection_id_; } |
| 46 bool is_delete_node() const { return is_delete_node_; } | 46 bool is_delete_view() const { return is_delete_view_; } |
| 47 | 47 |
| 48 // Marks the connection with the specified id as having seen a message. | 48 // Marks the connection with the specified id as having seen a message. |
| 49 void MarkConnectionAsMessaged(ConnectionSpecificId connection_id) { | 49 void MarkConnectionAsMessaged(ConnectionSpecificId connection_id) { |
| 50 message_ids_.insert(connection_id); | 50 message_ids_.insert(connection_id); |
| 51 } | 51 } |
| 52 | 52 |
| 53 // Returns true if MarkConnectionAsMessaged(connection_id) was invoked. | 53 // Returns true if MarkConnectionAsMessaged(connection_id) was invoked. |
| 54 bool DidMessageConnection(ConnectionSpecificId connection_id) const { | 54 bool DidMessageConnection(ConnectionSpecificId connection_id) const { |
| 55 return message_ids_.count(connection_id) > 0; | 55 return message_ids_.count(connection_id) > 0; |
| 56 } | 56 } |
| 57 | 57 |
| 58 private: | 58 private: |
| 59 RootNodeManager* root_; | 59 ConnectionManager* connection_manager_; |
| 60 const ConnectionSpecificId connection_id_; | 60 const ConnectionSpecificId connection_id_; |
| 61 const bool is_delete_node_; | 61 const bool is_delete_view_; |
| 62 | 62 |
| 63 // See description of MarkConnectionAsMessaged/DidMessageConnection. | 63 // See description of MarkConnectionAsMessaged/DidMessageConnection. |
| 64 std::set<ConnectionSpecificId> message_ids_; | 64 std::set<ConnectionSpecificId> message_ids_; |
| 65 | 65 |
| 66 DISALLOW_COPY_AND_ASSIGN(ScopedChange); | 66 DISALLOW_COPY_AND_ASSIGN(ScopedChange); |
| 67 }; | 67 }; |
| 68 | 68 |
| 69 RootNodeManager(ApplicationConnection* app_connection, | 69 ConnectionManager(ApplicationConnection* app_connection, |
| 70 DisplayManagerDelegate* display_manager_delegate, | 70 DisplayManagerDelegate* display_manager_delegate, |
| 71 const Callback<void()>& native_viewport_closed_callback); | 71 const Callback<void()>& native_viewport_closed_callback); |
| 72 virtual ~RootNodeManager(); | 72 virtual ~ConnectionManager(); |
| 73 | 73 |
| 74 // Returns the id for the next ViewManagerServiceImpl. | 74 // Returns the id for the next ViewManagerServiceImpl. |
| 75 ConnectionSpecificId GetAndAdvanceNextConnectionId(); | 75 ConnectionSpecificId GetAndAdvanceNextConnectionId(); |
| 76 | 76 |
| 77 void AddConnection(ViewManagerServiceImpl* connection); | 77 void AddConnection(ViewManagerServiceImpl* connection); |
| 78 void RemoveConnection(ViewManagerServiceImpl* connection); | 78 void RemoveConnection(ViewManagerServiceImpl* connection); |
| 79 | 79 |
| 80 // Establishes the initial client. Similar to Connect(), but the resulting | 80 // Establishes the initial client. Similar to Connect(), but the resulting |
| 81 // client is allowed to do anything. | 81 // client is allowed to do anything. |
| 82 void EmbedRoot(const std::string& url, | 82 void EmbedRoot(const std::string& url, |
| 83 InterfaceRequest<ServiceProvider> service_provider); | 83 InterfaceRequest<ServiceProvider> service_provider); |
| 84 | 84 |
| 85 // See description of ViewManagerService::Embed() for details. This assumes | 85 // See description of ViewManagerService::Embed() for details. This assumes |
| 86 // |transport_node_id| is valid. | 86 // |transport_view_id| is valid. |
| 87 void Embed(ConnectionSpecificId creator_id, | 87 void Embed(ConnectionSpecificId creator_id, |
| 88 const String& url, | 88 const String& url, |
| 89 Id transport_node_id, | 89 Id transport_view_id, |
| 90 InterfaceRequest<ServiceProvider> service_provider); | 90 InterfaceRequest<ServiceProvider> service_provider); |
| 91 | 91 |
| 92 // Returns the connection by id. | 92 // Returns the connection by id. |
| 93 ViewManagerServiceImpl* GetConnection(ConnectionSpecificId connection_id); | 93 ViewManagerServiceImpl* GetConnection(ConnectionSpecificId connection_id); |
| 94 | 94 |
| 95 // Returns the Node identified by |id|. | 95 // Returns the View identified by |id|. |
| 96 Node* GetNode(const NodeId& id); | 96 ServerView* GetView(const ViewId& id); |
| 97 | 97 |
| 98 Node* root() { return root_.get(); } | 98 ServerView* root() { return root_.get(); } |
| 99 | 99 |
| 100 bool IsProcessingChange() const { return current_change_ != NULL; } | 100 bool IsProcessingChange() const { return current_change_ != NULL; } |
| 101 | 101 |
| 102 bool is_processing_delete_node() const { | 102 bool is_processing_delete_view() const { |
| 103 return current_change_ && current_change_->is_delete_node(); } | 103 return current_change_ && current_change_->is_delete_view(); |
| 104 } |
| 104 | 105 |
| 105 // Invoked when a connection messages a client about the change. This is used | 106 // Invoked when a connection messages a client about the change. This is used |
| 106 // to avoid sending ServerChangeIdAdvanced() unnecessarily. | 107 // to avoid sending ServerChangeIdAdvanced() unnecessarily. |
| 107 void OnConnectionMessagedClient(ConnectionSpecificId id); | 108 void OnConnectionMessagedClient(ConnectionSpecificId id); |
| 108 | 109 |
| 109 // Returns true if OnConnectionMessagedClient() was invoked for id. | 110 // Returns true if OnConnectionMessagedClient() was invoked for id. |
| 110 bool DidConnectionMessageClient(ConnectionSpecificId id) const; | 111 bool DidConnectionMessageClient(ConnectionSpecificId id) const; |
| 111 | 112 |
| 112 ViewManagerServiceImpl* GetConnectionByCreator( | 113 ViewManagerServiceImpl* GetConnectionByCreator( |
| 113 ConnectionSpecificId creator_id, | 114 ConnectionSpecificId creator_id, |
| 114 const std::string& url) const; | 115 const std::string& url) const; |
| 115 | 116 |
| 116 // Returns the ViewManagerServiceImpl that has |id| as a root. | 117 // Returns the ViewManagerServiceImpl that has |id| as a root. |
| 117 ViewManagerServiceImpl* GetConnectionWithRoot(const NodeId& id) { | 118 ViewManagerServiceImpl* GetConnectionWithRoot(const ViewId& id) { |
| 118 return const_cast<ViewManagerServiceImpl*>( | 119 return const_cast<ViewManagerServiceImpl*>( |
| 119 const_cast<const RootNodeManager*>(this)->GetConnectionWithRoot(id)); | 120 const_cast<const ConnectionManager*>(this)->GetConnectionWithRoot(id)); |
| 120 } | 121 } |
| 121 const ViewManagerServiceImpl* GetConnectionWithRoot(const NodeId& id) const; | 122 const ViewManagerServiceImpl* GetConnectionWithRoot(const ViewId& id) const; |
| 122 | 123 |
| 123 void DispatchNodeInputEventToWindowManager(EventPtr event); | 124 void DispatchViewInputEventToWindowManager(EventPtr event); |
| 124 | 125 |
| 125 // These functions trivially delegate to all ViewManagerServiceImpls, which in | 126 // These functions trivially delegate to all ViewManagerServiceImpls, which in |
| 126 // term notify their clients. | 127 // term notify their clients. |
| 127 void ProcessNodeDestroyed(Node* node); | 128 void ProcessViewDestroyed(ServerView* view); |
| 128 void ProcessNodeBoundsChanged(const Node* node, | 129 void ProcessViewBoundsChanged(const ServerView* view, |
| 129 const gfx::Rect& old_bounds, | 130 const gfx::Rect& old_bounds, |
| 130 const gfx::Rect& new_bounds); | 131 const gfx::Rect& new_bounds); |
| 131 void ProcessNodeHierarchyChanged(const Node* node, | 132 void ProcessViewHierarchyChanged(const ServerView* view, |
| 132 const Node* new_parent, | 133 const ServerView* new_parent, |
| 133 const Node* old_parent); | 134 const ServerView* old_parent); |
| 134 void ProcessNodeReorder(const Node* node, | 135 void ProcessViewReorder(const ServerView* view, |
| 135 const Node* relative_node, | 136 const ServerView* relative_view, |
| 136 const OrderDirection direction); | 137 const OrderDirection direction); |
| 137 void ProcessNodeDeleted(const NodeId& node); | 138 void ProcessViewDeleted(const ViewId& view); |
| 138 | 139 |
| 139 private: | 140 private: |
| 140 // Used to setup any static state needed by RootNodeManager. | 141 // Used to setup any static state needed by ConnectionManager. |
| 141 struct Context { | 142 struct Context { |
| 142 Context(); | 143 Context(); |
| 143 ~Context(); | 144 ~Context(); |
| 144 }; | 145 }; |
| 145 | 146 |
| 146 typedef std::map<ConnectionSpecificId, ViewManagerServiceImpl*> ConnectionMap; | 147 typedef std::map<ConnectionSpecificId, ViewManagerServiceImpl*> ConnectionMap; |
| 147 | 148 |
| 148 // Invoked when a connection is about to make a change. Subsequently followed | 149 // Invoked when a connection is about to make a change. Subsequently followed |
| 149 // by FinishChange() once the change is done. | 150 // by FinishChange() once the change is done. |
| 150 // | 151 // |
| 151 // Changes should never nest, meaning each PrepareForChange() must be | 152 // Changes should never nest, meaning each PrepareForChange() must be |
| 152 // balanced with a call to FinishChange() with no PrepareForChange() | 153 // balanced with a call to FinishChange() with no PrepareForChange() |
| 153 // in between. | 154 // in between. |
| 154 void PrepareForChange(ScopedChange* change); | 155 void PrepareForChange(ScopedChange* change); |
| 155 | 156 |
| 156 // Balances a call to PrepareForChange(). | 157 // Balances a call to PrepareForChange(). |
| 157 void FinishChange(); | 158 void FinishChange(); |
| 158 | 159 |
| 159 // Returns true if the specified connection originated the current change. | 160 // Returns true if the specified connection originated the current change. |
| 160 bool IsChangeSource(ConnectionSpecificId connection_id) const { | 161 bool IsChangeSource(ConnectionSpecificId connection_id) const { |
| 161 return current_change_ && current_change_->connection_id() == connection_id; | 162 return current_change_ && current_change_->connection_id() == connection_id; |
| 162 } | 163 } |
| 163 | 164 |
| 164 // Implementation of the two embed variants. | 165 // Implementation of the two embed variants. |
| 165 ViewManagerServiceImpl* EmbedImpl( | 166 ViewManagerServiceImpl* EmbedImpl( |
| 166 ConnectionSpecificId creator_id, | 167 ConnectionSpecificId creator_id, |
| 167 const String& url, | 168 const String& url, |
| 168 const NodeId& root_id, | 169 const ViewId& root_id, |
| 169 InterfaceRequest<ServiceProvider> service_provider); | 170 InterfaceRequest<ServiceProvider> service_provider); |
| 170 | 171 |
| 171 // Overridden from NodeDelegate: | 172 // Overridden from ServerViewDelegate: |
| 172 virtual void OnNodeDestroyed(const Node* node) OVERRIDE; | 173 virtual void OnViewDestroyed(const ServerView* view) OVERRIDE; |
| 173 virtual void OnNodeHierarchyChanged(const Node* node, | 174 virtual void OnViewHierarchyChanged(const ServerView* view, |
| 174 const Node* new_parent, | 175 const ServerView* new_parent, |
| 175 const Node* old_parent) OVERRIDE; | 176 const ServerView* old_parent) OVERRIDE; |
| 176 virtual void OnNodeBoundsChanged(const Node* node, | 177 virtual void OnViewBoundsChanged(const ServerView* view, |
| 177 const gfx::Rect& old_bounds, | 178 const gfx::Rect& old_bounds, |
| 178 const gfx::Rect& new_bounds) OVERRIDE; | 179 const gfx::Rect& new_bounds) OVERRIDE; |
| 179 virtual void OnNodeBitmapChanged(const Node* node) OVERRIDE; | 180 virtual void OnViewBitmapChanged(const ServerView* view) OVERRIDE; |
| 180 | 181 |
| 181 Context context_; | 182 Context context_; |
| 182 | 183 |
| 183 ApplicationConnection* app_connection_; | 184 ApplicationConnection* app_connection_; |
| 184 | 185 |
| 185 // ID to use for next ViewManagerServiceImpl. | 186 // ID to use for next ViewManagerServiceImpl. |
| 186 ConnectionSpecificId next_connection_id_; | 187 ConnectionSpecificId next_connection_id_; |
| 187 | 188 |
| 188 // Set of ViewManagerServiceImpls. | 189 // Set of ViewManagerServiceImpls. |
| 189 ConnectionMap connection_map_; | 190 ConnectionMap connection_map_; |
| 190 | 191 |
| 191 DisplayManager display_manager_; | 192 DisplayManager display_manager_; |
| 192 | 193 |
| 193 // Root node. | 194 scoped_ptr<ServerView> root_; |
| 194 scoped_ptr<Node> root_; | |
| 195 | 195 |
| 196 // Set of ViewManagerServiceImpls created by way of Connect(). These have to | 196 // Set of ViewManagerServiceImpls created by way of Connect(). These have to |
| 197 // be explicitly destroyed. | 197 // be explicitly destroyed. |
| 198 std::set<ViewManagerServiceImpl*> connections_created_by_connect_; | 198 std::set<ViewManagerServiceImpl*> connections_created_by_connect_; |
| 199 | 199 |
| 200 // If non-null we're processing a change. The ScopedChange is not owned by us | 200 // If non-null we're processing a change. The ScopedChange is not owned by us |
| 201 // (it's created on the stack by ViewManagerServiceImpl). | 201 // (it's created on the stack by ViewManagerServiceImpl). |
| 202 ScopedChange* current_change_; | 202 ScopedChange* current_change_; |
| 203 | 203 |
| 204 DISALLOW_COPY_AND_ASSIGN(RootNodeManager); | 204 DISALLOW_COPY_AND_ASSIGN(ConnectionManager); |
| 205 }; | 205 }; |
| 206 | 206 |
| 207 } // namespace service | 207 } // namespace service |
| 208 } // namespace mojo | 208 } // namespace mojo |
| 209 | 209 |
| 210 #endif // MOJO_SERVICES_VIEW_MANAGER_ROOT_NODE_MANAGER_H_ | 210 #endif // MOJO_SERVICES_VIEW_MANAGER_CONNECTION_MANAGER_H_ |
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