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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_VIEW_MANAGER_SERVICE_IMPL_H_ | 5 #ifndef MOJO_SERVICES_VIEW_MANAGER_VIEW_MANAGER_SERVICE_IMPL_H_ |
| 6 #define MOJO_SERVICES_VIEW_MANAGER_VIEW_MANAGER_SERVICE_IMPL_H_ | 6 #define MOJO_SERVICES_VIEW_MANAGER_VIEW_MANAGER_SERVICE_IMPL_H_ |
| 7 | 7 |
| 8 #include <set> | 8 #include <set> |
| 9 #include <string> | 9 #include <string> |
| 10 #include <vector> | 10 #include <vector> |
| 11 | 11 |
| 12 #include "base/basictypes.h" | 12 #include "base/basictypes.h" |
| 13 #include "base/compiler_specific.h" | 13 #include "base/compiler_specific.h" |
| 14 #include "base/containers/hash_tables.h" | 14 #include "base/containers/hash_tables.h" |
| 15 #include "base/memory/scoped_ptr.h" | 15 #include "base/memory/scoped_ptr.h" |
| 16 #include "mojo/services/public/interfaces/view_manager/view_manager.mojom.h" | 16 #include "mojo/services/public/interfaces/view_manager/view_manager.mojom.h" |
| 17 #include "mojo/services/view_manager/access_policy_delegate.h" | 17 #include "mojo/services/view_manager/access_policy_delegate.h" |
| 18 #include "mojo/services/view_manager/ids.h" | 18 #include "mojo/services/view_manager/ids.h" |
| 19 #include "mojo/services/view_manager/view_manager_export.h" | 19 #include "mojo/services/view_manager/view_manager_export.h" |
| 20 | 20 |
| 21 namespace gfx { | 21 namespace gfx { |
| 22 class Rect; | 22 class Rect; |
| 23 } | 23 } |
| 24 | 24 |
| 25 namespace mojo { | 25 namespace mojo { |
| 26 namespace service { | 26 namespace service { |
| 27 | 27 |
| 28 class AccessPolicy; | 28 class AccessPolicy; |
| 29 class Node; | 29 class ConnectionManager; |
| 30 class RootNodeManager; | 30 class ServerView; |
| 31 | 31 |
| 32 #if defined(OS_WIN) | 32 #if defined(OS_WIN) |
| 33 // Equivalent of NON_EXPORTED_BASE which does not work with the template snafu | 33 // Equivalent of NON_EXPORTED_BASE which does not work with the template snafu |
| 34 // below. | 34 // below. |
| 35 #pragma warning(push) | 35 #pragma warning(push) |
| 36 #pragma warning(disable : 4275) | 36 #pragma warning(disable : 4275) |
| 37 #endif | 37 #endif |
| 38 | 38 |
| 39 // Manages a connection from the client. | 39 // Manages a connection from the client. |
| 40 class MOJO_VIEW_MANAGER_EXPORT ViewManagerServiceImpl | 40 class MOJO_VIEW_MANAGER_EXPORT ViewManagerServiceImpl |
| 41 : public InterfaceImpl<ViewManagerService>, | 41 : public InterfaceImpl<ViewManagerService>, |
| 42 public AccessPolicyDelegate { | 42 public AccessPolicyDelegate { |
| 43 public: | 43 public: |
| 44 ViewManagerServiceImpl(RootNodeManager* root_node_manager, | 44 ViewManagerServiceImpl(ConnectionManager* connection_manager, |
| 45 ConnectionSpecificId creator_id, | 45 ConnectionSpecificId creator_id, |
| 46 const std::string& creator_url, | 46 const std::string& creator_url, |
| 47 const std::string& url, | 47 const std::string& url, |
| 48 const NodeId& root_id, | 48 const ViewId& root_id, |
| 49 InterfaceRequest<ServiceProvider> service_provider); | 49 InterfaceRequest<ServiceProvider> service_provider); |
| 50 virtual ~ViewManagerServiceImpl(); | 50 virtual ~ViewManagerServiceImpl(); |
| 51 | 51 |
| 52 // Used to mark this connection as originating from a call to | 52 // Used to mark this connection as originating from a call to |
| 53 // ViewManagerService::Connect(). When set OnConnectionError() deletes |this|. | 53 // ViewManagerService::Connect(). When set OnConnectionError() deletes |this|. |
| 54 void set_delete_on_connection_error() { delete_on_connection_error_ = true; } | 54 void set_delete_on_connection_error() { delete_on_connection_error_ = true; } |
| 55 | 55 |
| 56 ConnectionSpecificId id() const { return id_; } | 56 ConnectionSpecificId id() const { return id_; } |
| 57 ConnectionSpecificId creator_id() const { return creator_id_; } | 57 ConnectionSpecificId creator_id() const { return creator_id_; } |
| 58 const std::string& url() const { return url_; } | 58 const std::string& url() const { return url_; } |
| 59 | 59 |
| 60 // Returns the Node with the specified id. | 60 // Returns the View with the specified id. |
| 61 Node* GetNode(const NodeId& id) { | 61 ServerView* GetView(const ViewId& id) { |
| 62 return const_cast<Node*>( | 62 return const_cast<ServerView*>( |
| 63 const_cast<const ViewManagerServiceImpl*>(this)->GetNode(id)); | 63 const_cast<const ViewManagerServiceImpl*>(this)->GetView(id)); |
| 64 } | 64 } |
| 65 const Node* GetNode(const NodeId& id) const; | 65 const ServerView* GetView(const ViewId& id) const; |
| 66 | 66 |
| 67 // Returns true if this has |id| as a root. | 67 // Returns true if this has |id| as a root. |
| 68 bool HasRoot(const NodeId& id) const; | 68 bool HasRoot(const ViewId& id) const; |
| 69 | 69 |
| 70 // Invoked when a connection is destroyed. | 70 // Invoked when a connection is destroyed. |
| 71 void OnViewManagerServiceImplDestroyed(ConnectionSpecificId id); | 71 void OnViewManagerServiceImplDestroyed(ConnectionSpecificId id); |
| 72 | 72 |
| 73 // The following methods are invoked after the corresponding change has been | 73 // The following methods are invoked after the corresponding change has been |
| 74 // processed. They do the appropriate bookkeeping and update the client as | 74 // processed. They do the appropriate bookkeeping and update the client as |
| 75 // necessary. | 75 // necessary. |
| 76 void ProcessNodeBoundsChanged(const Node* node, | 76 void ProcessViewBoundsChanged(const ServerView* view, |
| 77 const gfx::Rect& old_bounds, | 77 const gfx::Rect& old_bounds, |
| 78 const gfx::Rect& new_bounds, | 78 const gfx::Rect& new_bounds, |
| 79 bool originated_change); | 79 bool originated_change); |
| 80 void ProcessNodeHierarchyChanged(const Node* node, | 80 void ProcessViewHierarchyChanged(const ServerView* view, |
| 81 const Node* new_parent, | 81 const ServerView* new_parent, |
| 82 const Node* old_parent, | 82 const ServerView* old_parent, |
| 83 bool originated_change); | 83 bool originated_change); |
| 84 void ProcessNodeReorder(const Node* node, | 84 void ProcessViewReorder(const ServerView* view, |
| 85 const Node* relative_node, | 85 const ServerView* relative_view, |
| 86 OrderDirection direction, | 86 OrderDirection direction, |
| 87 bool originated_change); | 87 bool originated_change); |
| 88 void ProcessNodeDeleted(const NodeId& node, bool originated_change); | 88 void ProcessViewDeleted(const ViewId& view, bool originated_change); |
| 89 | 89 |
| 90 // TODO(sky): move this to private section (currently can't because of | 90 // TODO(sky): move this to private section (currently can't because of |
| 91 // bindings). | 91 // bindings). |
| 92 // InterfaceImp overrides: | 92 // InterfaceImp overrides: |
| 93 virtual void OnConnectionError() MOJO_OVERRIDE; | 93 virtual void OnConnectionError() MOJO_OVERRIDE; |
| 94 | 94 |
| 95 private: | 95 private: |
| 96 typedef std::map<ConnectionSpecificId, Node*> NodeMap; | 96 typedef std::map<ConnectionSpecificId, ServerView*> ViewMap; |
| 97 typedef base::hash_set<Id> NodeIdSet; | 97 typedef base::hash_set<Id> ViewIdSet; |
| 98 | 98 |
| 99 bool IsNodeKnown(const Node* node) const; | 99 bool IsViewKnown(const ServerView* view) const; |
| 100 | 100 |
| 101 // These functions return true if the corresponding mojom function is allowed | 101 // These functions return true if the corresponding mojom function is allowed |
| 102 // for this connection. | 102 // for this connection. |
| 103 bool CanReorderNode(const Node* node, | 103 bool CanReorderView(const ServerView* view, |
| 104 const Node* relative_node, | 104 const ServerView* relative_view, |
| 105 OrderDirection direction) const; | 105 OrderDirection direction) const; |
| 106 | 106 |
| 107 // Deletes a node owned by this connection. Returns true on success. |source| | 107 // Deletes a view owned by this connection. Returns true on success. |source| |
| 108 // is the connection that originated the change. | 108 // is the connection that originated the change. |
| 109 bool DeleteNodeImpl(ViewManagerServiceImpl* source, Node* node); | 109 bool DeleteViewImpl(ViewManagerServiceImpl* source, ServerView* view); |
| 110 | 110 |
| 111 // If |node| is known (in |known_nodes_|) does nothing. Otherwise adds |node| | 111 // If |view| is known (in |known_views_|) does nothing. Otherwise adds |view| |
| 112 // to |nodes|, marks |node| as known and recurses. | 112 // to |views|, marks |view| as known and recurses. |
| 113 void GetUnknownNodesFrom(const Node* node, std::vector<const Node*>* nodes); | 113 void GetUnknownViewsFrom(const ServerView* view, |
| 114 std::vector<const ServerView*>* views); |
| 114 | 115 |
| 115 // Removes |node| and all its descendants from |known_nodes_|. This does not | 116 // Removes |view| and all its descendants from |known_views_|. This does not |
| 116 // recurse through nodes that were created by this connection. All nodes owned | 117 // recurse through views that were created by this connection. All views owned |
| 117 // by this connection are added to |local_nodes|. | 118 // by this connection are added to |local_views|. |
| 118 void RemoveFromKnown(const Node* node, std::vector<Node*>* local_nodes); | 119 void RemoveFromKnown(const ServerView* view, |
| 120 std::vector<ServerView*>* local_views); |
| 119 | 121 |
| 120 // Adds |node_id| to the set of roots this connection knows about. The caller | 122 // Adds |view_id| to the set of roots this connection knows about. The caller |
| 121 // should have verified |node_id| is not among the roots of this connection. | 123 // should have verified |view_id| is not among the roots of this connection. |
| 122 void AddRoot(const NodeId& node_id, | 124 void AddRoot(const ViewId& view_id, |
| 123 InterfaceRequest<ServiceProvider> service_provider); | 125 InterfaceRequest<ServiceProvider> service_provider); |
| 124 | 126 |
| 125 // Removes |node_id| from the set of roots this connection knows about. | 127 // Removes |view_id| from the set of roots this connection knows about. |
| 126 void RemoveRoot(const NodeId& node_id); | 128 void RemoveRoot(const ViewId& view_id); |
| 127 | 129 |
| 128 void RemoveChildrenAsPartOfEmbed(const NodeId& node_id); | 130 void RemoveChildrenAsPartOfEmbed(const ViewId& view_id); |
| 129 | 131 |
| 130 // Converts Node(s) to ViewData(s) for transport. This assumes all the nodes | 132 // Converts View(s) to ViewData(s) for transport. This assumes all the views |
| 131 // are valid for the client. The parent of nodes the client is not allowed to | 133 // are valid for the client. The parent of views the client is not allowed to |
| 132 // see are set to NULL (in the returned ViewData(s)). | 134 // see are set to NULL (in the returned ViewData(s)). |
| 133 Array<ViewDataPtr> NodesToViewDatas(const std::vector<const Node*>& nodes); | 135 Array<ViewDataPtr> ViewsToViewDatas( |
| 134 ViewDataPtr NodeToViewData(const Node* node); | 136 const std::vector<const ServerView*>& views); |
| 137 ViewDataPtr ViewToViewData(const ServerView* view); |
| 135 | 138 |
| 136 // Implementation of GetNodeTree(). Adds |node| to |nodes| and recurses if | 139 // Implementation of GetViewTree(). Adds |view| to |views| and recurses if |
| 137 // CanDescendIntoNodeForNodeTree() returns true. | 140 // CanDescendIntoViewForViewTree() returns true. |
| 138 void GetNodeTreeImpl(const Node* node, std::vector<const Node*>* nodes) const; | 141 void GetViewTreeImpl(const ServerView* view, |
| 142 std::vector<const ServerView*>* views) const; |
| 139 | 143 |
| 140 // ViewManagerService: | 144 // ViewManagerService: |
| 141 virtual void CreateView(Id transport_view_id, | 145 virtual void CreateView(Id transport_view_id, |
| 142 const Callback<void(ErrorCode)>& callback) OVERRIDE; | 146 const Callback<void(ErrorCode)>& callback) OVERRIDE; |
| 143 virtual void DeleteView(Id transport_view_id, | 147 virtual void DeleteView(Id transport_view_id, |
| 144 const Callback<void(bool)>& callback) OVERRIDE; | 148 const Callback<void(bool)>& callback) OVERRIDE; |
| 145 virtual void AddView(Id parent_id, | 149 virtual void AddView(Id parent_id, |
| 146 Id child_id, | 150 Id child_id, |
| 147 const Callback<void(bool)>& callback) OVERRIDE; | 151 const Callback<void(bool)>& callback) OVERRIDE; |
| 148 virtual void RemoveViewFromParent( | 152 virtual void RemoveViewFromParent( |
| 149 Id node_id, | 153 Id view_id, |
| 150 const Callback<void(bool)>& callback) OVERRIDE; | 154 const Callback<void(bool)>& callback) OVERRIDE; |
| 151 virtual void ReorderView(Id view_id, | 155 virtual void ReorderView(Id view_id, |
| 152 Id relative_view_id, | 156 Id relative_view_id, |
| 153 OrderDirection direction, | 157 OrderDirection direction, |
| 154 const Callback<void(bool)>& callback) OVERRIDE; | 158 const Callback<void(bool)>& callback) OVERRIDE; |
| 155 virtual void GetViewTree( | 159 virtual void GetViewTree( |
| 156 Id view_id, | 160 Id view_id, |
| 157 const Callback<void(Array<ViewDataPtr>)>& callback) OVERRIDE; | 161 const Callback<void(Array<ViewDataPtr>)>& callback) OVERRIDE; |
| 158 virtual void SetViewContents(Id view_id, | 162 virtual void SetViewContents(Id view_id, |
| 159 ScopedSharedBufferHandle buffer, | 163 ScopedSharedBufferHandle buffer, |
| 160 uint32_t buffer_size, | 164 uint32_t buffer_size, |
| 161 const Callback<void(bool)>& callback) OVERRIDE; | 165 const Callback<void(bool)>& callback) OVERRIDE; |
| 162 virtual void SetViewBounds(Id view_id, | 166 virtual void SetViewBounds(Id view_id, |
| 163 RectPtr bounds, | 167 RectPtr bounds, |
| 164 const Callback<void(bool)>& callback) OVERRIDE; | 168 const Callback<void(bool)>& callback) OVERRIDE; |
| 165 virtual void SetViewVisibility(Id view_id, | 169 virtual void SetViewVisibility(Id view_id, |
| 166 bool visible, | 170 bool visible, |
| 167 const Callback<void(bool)>& callback) OVERRIDE; | 171 const Callback<void(bool)>& callback) OVERRIDE; |
| 168 virtual void Embed(const String& url, | 172 virtual void Embed(const String& url, |
| 169 Id view_id, | 173 Id view_id, |
| 170 ServiceProviderPtr service_provider, | 174 ServiceProviderPtr service_provider, |
| 171 const Callback<void(bool)>& callback) OVERRIDE; | 175 const Callback<void(bool)>& callback) OVERRIDE; |
| 172 virtual void DispatchOnViewInputEvent(Id view_id, EventPtr event) OVERRIDE; | 176 virtual void DispatchOnViewInputEvent(Id view_id, EventPtr event) OVERRIDE; |
| 173 | 177 |
| 174 // InterfaceImpl: | 178 // InterfaceImpl: |
| 175 virtual void OnConnectionEstablished() MOJO_OVERRIDE; | 179 virtual void OnConnectionEstablished() MOJO_OVERRIDE; |
| 176 | 180 |
| 177 // AccessPolicyDelegate: | 181 // AccessPolicyDelegate: |
| 178 virtual const base::hash_set<Id>& GetRootsForAccessPolicy() const OVERRIDE; | 182 virtual const base::hash_set<Id>& GetRootsForAccessPolicy() const OVERRIDE; |
| 179 virtual bool IsNodeKnownForAccessPolicy(const Node* node) const OVERRIDE; | 183 virtual bool IsViewKnownForAccessPolicy( |
| 180 virtual bool IsNodeRootOfAnotherConnectionForAccessPolicy( | 184 const ServerView* view) const OVERRIDE; |
| 181 const Node* node) const OVERRIDE; | 185 virtual bool IsViewRootOfAnotherConnectionForAccessPolicy( |
| 186 const ServerView* view) const OVERRIDE; |
| 182 | 187 |
| 183 RootNodeManager* root_node_manager_; | 188 ConnectionManager* connection_manager_; |
| 184 | 189 |
| 185 // Id of this connection as assigned by RootNodeManager. | 190 // Id of this connection as assigned by ConnectionManager. |
| 186 const ConnectionSpecificId id_; | 191 const ConnectionSpecificId id_; |
| 187 | 192 |
| 188 // URL this connection was created for. | 193 // URL this connection was created for. |
| 189 const std::string url_; | 194 const std::string url_; |
| 190 | 195 |
| 191 // ID of the connection that created us. If 0 it indicates either we were | 196 // ID of the connection that created us. If 0 it indicates either we were |
| 192 // created by the root, or the connection that created us has been destroyed. | 197 // created by the root, or the connection that created us has been destroyed. |
| 193 ConnectionSpecificId creator_id_; | 198 ConnectionSpecificId creator_id_; |
| 194 | 199 |
| 195 // The URL of the app that embedded the app this connection was created for. | 200 // The URL of the app that embedded the app this connection was created for. |
| 196 const std::string creator_url_; | 201 const std::string creator_url_; |
| 197 | 202 |
| 198 scoped_ptr<AccessPolicy> access_policy_; | 203 scoped_ptr<AccessPolicy> access_policy_; |
| 199 | 204 |
| 200 // The nodes and views created by this connection. This connection owns these | 205 // The views and views created by this connection. This connection owns these |
| 201 // objects. | 206 // objects. |
| 202 NodeMap node_map_; | 207 ViewMap view_map_; |
| 203 | 208 |
| 204 // The set of nodes that has been communicated to the client. | 209 // The set of views that has been communicated to the client. |
| 205 NodeIdSet known_nodes_; | 210 ViewIdSet known_views_; |
| 206 | 211 |
| 207 // Set of root nodes from other connections. More specifically any time | 212 // Set of root views from other connections. More specifically any time |
| 208 // Embed() is invoked the id of the node is added to this set for the child | 213 // Embed() is invoked the id of the view is added to this set for the child |
| 209 // connection. The connection Embed() was invoked on (the parent) doesn't | 214 // connection. The connection Embed() was invoked on (the parent) doesn't |
| 210 // directly track which connections are attached to which of its nodes. That | 215 // directly track which connections are attached to which of its views. That |
| 211 // information can be found by looking through the |roots_| of all | 216 // information can be found by looking through the |roots_| of all |
| 212 // connections. | 217 // connections. |
| 213 NodeIdSet roots_; | 218 ViewIdSet roots_; |
| 214 | 219 |
| 215 // See description above setter. | 220 // See description above setter. |
| 216 bool delete_on_connection_error_; | 221 bool delete_on_connection_error_; |
| 217 | 222 |
| 218 InterfaceRequest<ServiceProvider> service_provider_; | 223 InterfaceRequest<ServiceProvider> service_provider_; |
| 219 | 224 |
| 220 DISALLOW_COPY_AND_ASSIGN(ViewManagerServiceImpl); | 225 DISALLOW_COPY_AND_ASSIGN(ViewManagerServiceImpl); |
| 221 }; | 226 }; |
| 222 | 227 |
| 223 #if defined(OS_WIN) | 228 #if defined(OS_WIN) |
| 224 #pragma warning(pop) | 229 #pragma warning(pop) |
| 225 #endif | 230 #endif |
| 226 | 231 |
| 227 } // namespace service | 232 } // namespace service |
| 228 } // namespace mojo | 233 } // namespace mojo |
| 229 | 234 |
| 230 #endif // MOJO_SERVICES_VIEW_MANAGER_VIEW_MANAGER_SERVICE_IMPL_H_ | 235 #endif // MOJO_SERVICES_VIEW_MANAGER_VIEW_MANAGER_SERVICE_IMPL_H_ |
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