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| 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 | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef SERVICES_VIEW_MANAGER_VIEW_MANAGER_SERVICE_IMPL_H_ | |
| 6 #define SERVICES_VIEW_MANAGER_VIEW_MANAGER_SERVICE_IMPL_H_ | |
| 7 | |
| 8 #include <set> | |
| 9 #include <string> | |
| 10 #include <vector> | |
| 11 | |
| 12 #include "base/basictypes.h" | |
| 13 #include "base/containers/hash_tables.h" | |
| 14 #include "base/memory/scoped_ptr.h" | |
| 15 #include "mojo/services/surfaces/interfaces/surface_id.mojom.h" | |
| 16 #include "mojo/services/view_manager/interfaces/view_manager.mojom.h" | |
| 17 #include "services/view_manager/access_policy_delegate.h" | |
| 18 #include "services/view_manager/ids.h" | |
| 19 | |
| 20 namespace gfx { | |
| 21 class Rect; | |
| 22 } | |
| 23 | |
| 24 namespace view_manager { | |
| 25 | |
| 26 class AccessPolicy; | |
| 27 class ConnectionManager; | |
| 28 class ServerView; | |
| 29 | |
| 30 // An instance of ViewManagerServiceImpl is created for every ViewManagerService | |
| 31 // request. ViewManagerServiceImpl tracks all the state and views created by a | |
| 32 // client. ViewManagerServiceImpl coordinates with ConnectionManager to update | |
| 33 // the client (and internal state) as necessary. | |
| 34 class ViewManagerServiceImpl : public mojo::ViewManagerService, | |
| 35 public AccessPolicyDelegate { | |
| 36 public: | |
| 37 using ViewIdSet = base::hash_set<mojo::Id>; | |
| 38 | |
| 39 ViewManagerServiceImpl(ConnectionManager* connection_manager, | |
| 40 mojo::ConnectionSpecificId creator_id, | |
| 41 const std::string& creator_url, | |
| 42 const std::string& url, | |
| 43 const ViewId& root_id); | |
| 44 ~ViewManagerServiceImpl() override; | |
| 45 | |
| 46 // |services| and |exposed_services| are the ServiceProviders to pass to the | |
| 47 // client via OnEmbed(). | |
| 48 void Init(mojo::ViewManagerClient* client, | |
| 49 mojo::ViewManagerServicePtr service_ptr, | |
| 50 mojo::InterfaceRequest<mojo::ServiceProvider> services, | |
| 51 mojo::ServiceProviderPtr exposed_services); | |
| 52 | |
| 53 mojo::ConnectionSpecificId id() const { return id_; } | |
| 54 mojo::ConnectionSpecificId creator_id() const { return creator_id_; } | |
| 55 const std::string& url() const { return url_; } | |
| 56 | |
| 57 mojo::ViewManagerClient* client() { return client_; } | |
| 58 | |
| 59 // Returns the View with the specified id. | |
| 60 ServerView* GetView(const ViewId& id) { | |
| 61 return const_cast<ServerView*>( | |
| 62 const_cast<const ViewManagerServiceImpl*>(this)->GetView(id)); | |
| 63 } | |
| 64 const ServerView* GetView(const ViewId& id) const; | |
| 65 | |
| 66 // Returns true if this connection's root is |id|. | |
| 67 bool IsRoot(const ViewId& id) const; | |
| 68 | |
| 69 // Returns the id of the root node. This is null if the root has been | |
| 70 // destroyed but the connection is still valid. | |
| 71 const ViewId* root() const { return root_.get(); } | |
| 72 | |
| 73 // Invoked when a connection is about to be destroyed. | |
| 74 void OnWillDestroyViewManagerServiceImpl(ViewManagerServiceImpl* connection); | |
| 75 | |
| 76 // These functions are synchronous variants of those defined in the mojom. The | |
| 77 // ViewManagerService implementations all call into these. See the mojom for | |
| 78 // details. | |
| 79 mojo::ErrorCode CreateView(const ViewId& view_id); | |
| 80 bool AddView(const ViewId& parent_id, const ViewId& child_id); | |
| 81 std::vector<const ServerView*> GetViewTree(const ViewId& view_id) const; | |
| 82 bool SetViewVisibility(const ViewId& view_id, bool visible); | |
| 83 bool EmbedUrl(const std::string& url, | |
| 84 const ViewId& view_id, | |
| 85 mojo::InterfaceRequest<mojo::ServiceProvider> services, | |
| 86 mojo::ServiceProviderPtr exposed_services); | |
| 87 bool Embed(const ViewId& view_id, mojo::ViewManagerClientPtr client); | |
| 88 | |
| 89 // The following methods are invoked after the corresponding change has been | |
| 90 // processed. They do the appropriate bookkeeping and update the client as | |
| 91 // necessary. | |
| 92 void ProcessViewBoundsChanged(const ServerView* view, | |
| 93 const gfx::Rect& old_bounds, | |
| 94 const gfx::Rect& new_bounds, | |
| 95 bool originated_change); | |
| 96 void ProcessViewportMetricsChanged(const mojo::ViewportMetrics& old_metrics, | |
| 97 const mojo::ViewportMetrics& new_metrics, | |
| 98 bool originated_change); | |
| 99 void ProcessWillChangeViewHierarchy(const ServerView* view, | |
| 100 const ServerView* new_parent, | |
| 101 const ServerView* old_parent, | |
| 102 bool originated_change); | |
| 103 void ProcessViewPropertyChanged(const ServerView* view, | |
| 104 const std::string& name, | |
| 105 const std::vector<uint8_t>* new_data, | |
| 106 bool originated_change); | |
| 107 void ProcessViewHierarchyChanged(const ServerView* view, | |
| 108 const ServerView* new_parent, | |
| 109 const ServerView* old_parent, | |
| 110 bool originated_change); | |
| 111 void ProcessViewReorder(const ServerView* view, | |
| 112 const ServerView* relative_view, | |
| 113 mojo::OrderDirection direction, | |
| 114 bool originated_change); | |
| 115 void ProcessViewDeleted(const ViewId& view, bool originated_change); | |
| 116 void ProcessWillChangeViewVisibility(const ServerView* view, | |
| 117 bool originated_change); | |
| 118 void ProcessViewPropertiesChanged(const ServerView* view, | |
| 119 bool originated_change); | |
| 120 | |
| 121 private: | |
| 122 typedef std::map<mojo::ConnectionSpecificId, ServerView*> ViewMap; | |
| 123 | |
| 124 bool IsViewKnown(const ServerView* view) const; | |
| 125 | |
| 126 // These functions return true if the corresponding mojom function is allowed | |
| 127 // for this connection. | |
| 128 bool CanReorderView(const ServerView* view, | |
| 129 const ServerView* relative_view, | |
| 130 mojo::OrderDirection direction) const; | |
| 131 | |
| 132 // Deletes a view owned by this connection. Returns true on success. |source| | |
| 133 // is the connection that originated the change. | |
| 134 bool DeleteViewImpl(ViewManagerServiceImpl* source, ServerView* view); | |
| 135 | |
| 136 // If |view| is known (in |known_views_|) does nothing. Otherwise adds |view| | |
| 137 // to |views|, marks |view| as known and recurses. | |
| 138 void GetUnknownViewsFrom(const ServerView* view, | |
| 139 std::vector<const ServerView*>* views); | |
| 140 | |
| 141 // Removes |view| and all its descendants from |known_views_|. This does not | |
| 142 // recurse through views that were created by this connection. All views owned | |
| 143 // by this connection are added to |local_views|. | |
| 144 void RemoveFromKnown(const ServerView* view, | |
| 145 std::vector<ServerView*>* local_views); | |
| 146 | |
| 147 // Resets the root of this connection. | |
| 148 void RemoveRoot(); | |
| 149 | |
| 150 void RemoveChildrenAsPartOfEmbed(const ViewId& view_id); | |
| 151 | |
| 152 // Converts View(s) to ViewData(s) for transport. This assumes all the views | |
| 153 // are valid for the client. The parent of views the client is not allowed to | |
| 154 // see are set to NULL (in the returned ViewData(s)). | |
| 155 mojo::Array<mojo::ViewDataPtr> ViewsToViewDatas( | |
| 156 const std::vector<const ServerView*>& views); | |
| 157 mojo::ViewDataPtr ViewToViewData(const ServerView* view); | |
| 158 | |
| 159 // Implementation of GetViewTree(). Adds |view| to |views| and recurses if | |
| 160 // CanDescendIntoViewForViewTree() returns true. | |
| 161 void GetViewTreeImpl(const ServerView* view, | |
| 162 std::vector<const ServerView*>* views) const; | |
| 163 | |
| 164 // Notify the client if the drawn state of any of the roots changes. | |
| 165 // |view| is the view that is changing to the drawn state |new_drawn_value|. | |
| 166 void NotifyDrawnStateChanged(const ServerView* view, bool new_drawn_value); | |
| 167 | |
| 168 // Deletes all Views we own. | |
| 169 void DestroyViews(); | |
| 170 | |
| 171 bool PrepareForEmbed(const ViewId& view_id); | |
| 172 | |
| 173 // ViewManagerService: | |
| 174 void CreateView( | |
| 175 mojo::Id transport_view_id, | |
| 176 const mojo::Callback<void(mojo::ErrorCode)>& callback) override; | |
| 177 void DeleteView(mojo::Id transport_view_id, | |
| 178 const mojo::Callback<void(bool)>& callback) override; | |
| 179 void AddView(mojo::Id parent_id, | |
| 180 mojo::Id child_id, | |
| 181 const mojo::Callback<void(bool)>& callback) override; | |
| 182 void RemoveViewFromParent( | |
| 183 mojo::Id view_id, | |
| 184 const mojo::Callback<void(bool)>& callback) override; | |
| 185 void ReorderView(mojo::Id view_id, | |
| 186 mojo::Id relative_view_id, | |
| 187 mojo::OrderDirection direction, | |
| 188 const mojo::Callback<void(bool)>& callback) override; | |
| 189 void GetViewTree(mojo::Id view_id, | |
| 190 const mojo::Callback<void(mojo::Array<mojo::ViewDataPtr>)>& | |
| 191 callback) override; | |
| 192 void SetViewSurfaceId(mojo::Id view_id, | |
| 193 mojo::SurfaceIdPtr surface_id, | |
| 194 const mojo::Callback<void(bool)>& callback) override; | |
| 195 void SetViewBounds(mojo::Id view_id, | |
| 196 mojo::RectPtr bounds, | |
| 197 const mojo::Callback<void(bool)>& callback) override; | |
| 198 void SetViewVisibility(mojo::Id view_id, | |
| 199 bool visible, | |
| 200 const mojo::Callback<void(bool)>& callback) override; | |
| 201 void SetViewProperty(mojo::Id view_id, | |
| 202 const mojo::String& name, | |
| 203 mojo::Array<uint8_t> value, | |
| 204 const mojo::Callback<void(bool)>& callback) override; | |
| 205 void EmbedUrl(const mojo::String& url, | |
| 206 mojo::Id transport_view_id, | |
| 207 mojo::InterfaceRequest<mojo::ServiceProvider> services, | |
| 208 mojo::ServiceProviderPtr exposed_services, | |
| 209 const mojo::Callback<void(bool)>& callback) override; | |
| 210 void Embed(mojo::Id transport_view_id, | |
| 211 mojo::ViewManagerClientPtr client, | |
| 212 const mojo::Callback<void(bool)>& callback) override; | |
| 213 void PerformAction(mojo::Id transport_view_id, | |
| 214 const mojo::String& action, | |
| 215 const mojo::Callback<void(bool)>& callback) override; | |
| 216 | |
| 217 // AccessPolicyDelegate: | |
| 218 bool IsRootForAccessPolicy(const ViewId& id) const override; | |
| 219 bool IsViewKnownForAccessPolicy(const ServerView* view) const override; | |
| 220 bool IsViewRootOfAnotherConnectionForAccessPolicy( | |
| 221 const ServerView* view) const override; | |
| 222 | |
| 223 ConnectionManager* connection_manager_; | |
| 224 | |
| 225 // Id of this connection as assigned by ConnectionManager. | |
| 226 const mojo::ConnectionSpecificId id_; | |
| 227 | |
| 228 // URL this connection was created for. | |
| 229 const std::string url_; | |
| 230 | |
| 231 // ID of the connection that created us. If 0 it indicates either we were | |
| 232 // created by the root, or the connection that created us has been destroyed. | |
| 233 mojo::ConnectionSpecificId creator_id_; | |
| 234 | |
| 235 // The URL of the app that embedded the app this connection was created for. | |
| 236 // NOTE: this is empty if the connection was created by way of directly | |
| 237 // supplying the ViewManagerClient. | |
| 238 const std::string creator_url_; | |
| 239 | |
| 240 mojo::ViewManagerClient* client_; | |
| 241 | |
| 242 scoped_ptr<AccessPolicy> access_policy_; | |
| 243 | |
| 244 // The views created by this connection. This connection owns these objects. | |
| 245 ViewMap view_map_; | |
| 246 | |
| 247 // The set of views that has been communicated to the client. | |
| 248 ViewIdSet known_views_; | |
| 249 | |
| 250 // The root of this connection. This is a scoped_ptr to reinforce the | |
| 251 // connection may have no root. A connection has no root if either the root | |
| 252 // is destroyed or Embed() is invoked on the root. | |
| 253 scoped_ptr<ViewId> root_; | |
| 254 | |
| 255 DISALLOW_COPY_AND_ASSIGN(ViewManagerServiceImpl); | |
| 256 }; | |
| 257 | |
| 258 } // namespace view_manager | |
| 259 | |
| 260 #endif // SERVICES_VIEW_MANAGER_VIEW_MANAGER_SERVICE_IMPL_H_ | |
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Chromium Code Reviews
Issue 1531403003:
Delete the ViewManager and WindowManager services. (Closed)
Base URL: git@github.com:domokit/mojo.git@moz-3