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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 COMPONENTS_MUS_VIEW_TREE_IMPL_H_ | 5 #ifndef COMPONENTS_MUS_VIEW_TREE_IMPL_H_ |
6 #define COMPONENTS_MUS_VIEW_TREE_IMPL_H_ | 6 #define COMPONENTS_MUS_VIEW_TREE_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/containers/hash_tables.h" | 13 #include "base/containers/hash_tables.h" |
14 #include "base/memory/ref_counted.h" | 14 #include "base/memory/ref_counted.h" |
15 #include "base/memory/scoped_ptr.h" | 15 #include "base/memory/scoped_ptr.h" |
16 #include "components/mus/access_policy_delegate.h" | 16 #include "components/mus/access_policy_delegate.h" |
17 #include "components/mus/ids.h" | 17 #include "components/mus/ids.h" |
18 #include "components/mus/public/interfaces/surface_id.mojom.h" | 18 #include "components/mus/public/interfaces/surface_id.mojom.h" |
19 #include "components/mus/public/interfaces/view_tree.mojom.h" | 19 #include "components/mus/public/interfaces/view_tree.mojom.h" |
20 | 20 |
21 namespace gfx { | 21 namespace gfx { |
22 class Rect; | 22 class Rect; |
23 } | 23 } |
24 | 24 |
25 namespace view_manager { | 25 namespace mus { |
26 | 26 |
27 class AccessPolicy; | 27 class AccessPolicy; |
28 class ConnectionManager; | 28 class ConnectionManager; |
29 class ServerView; | 29 class ServerView; |
30 class ViewTreeHostImpl; | 30 class ViewTreeHostImpl; |
31 | 31 |
32 // An instance of ViewTreeImpl is created for every ViewTree request. | 32 // An instance of ViewTreeImpl is created for every ViewTree request. |
33 // ViewTreeImpl tracks all the state and views created by a client. ViewTreeImpl | 33 // ViewTreeImpl tracks all the state and views created by a client. ViewTreeImpl |
34 // coordinates with ConnectionManager to update the client (and internal state) | 34 // coordinates with ConnectionManager to update the client (and internal state) |
35 // as necessary. | 35 // as necessary. |
36 class ViewTreeImpl : public mojo::ViewTree, public AccessPolicyDelegate { | 36 class ViewTreeImpl : public mojo::ViewTree, public AccessPolicyDelegate { |
37 public: | 37 public: |
38 ViewTreeImpl(ConnectionManager* connection_manager, | 38 ViewTreeImpl(ConnectionManager* connection_manager, |
39 mojo::ConnectionSpecificId creator_id, | 39 ConnectionSpecificId creator_id, |
40 const ViewId& root_id); | 40 const ViewId& root_id); |
41 ~ViewTreeImpl() override; | 41 ~ViewTreeImpl() override; |
42 | 42 |
43 // |services| and |exposed_services| are the ServiceProviders to pass to the | 43 // |services| and |exposed_services| are the ServiceProviders to pass to the |
44 // client via OnEmbed(). | 44 // client via OnEmbed(). |
45 void Init(mojo::ViewTreeClient* client, mojo::ViewTreePtr tree); | 45 void Init(mojo::ViewTreeClient* client, mojo::ViewTreePtr tree); |
46 | 46 |
47 mojo::ConnectionSpecificId id() const { return id_; } | 47 ConnectionSpecificId id() const { return id_; } |
48 mojo::ConnectionSpecificId creator_id() const { return creator_id_; } | 48 ConnectionSpecificId creator_id() const { return creator_id_; } |
49 | 49 |
50 mojo::ViewTreeClient* client() { return client_; } | 50 mojo::ViewTreeClient* client() { return client_; } |
51 | 51 |
52 // Returns the View with the specified id. | 52 // Returns the View with the specified id. |
53 ServerView* GetView(const ViewId& id) { | 53 ServerView* GetView(const ViewId& id) { |
54 return const_cast<ServerView*>( | 54 return const_cast<ServerView*>( |
55 const_cast<const ViewTreeImpl*>(this)->GetView(id)); | 55 const_cast<const ViewTreeImpl*>(this)->GetView(id)); |
56 } | 56 } |
57 const ServerView* GetView(const ViewId& id) const; | 57 const ServerView* GetView(const ViewId& id) const; |
58 | 58 |
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71 void OnWillDestroyViewTreeImpl(ViewTreeImpl* connection); | 71 void OnWillDestroyViewTreeImpl(ViewTreeImpl* connection); |
72 | 72 |
73 // These functions are synchronous variants of those defined in the mojom. The | 73 // These functions are synchronous variants of those defined in the mojom. The |
74 // ViewTree implementations all call into these. See the mojom for details. | 74 // ViewTree implementations all call into these. See the mojom for details. |
75 mojo::ErrorCode CreateView(const ViewId& view_id); | 75 mojo::ErrorCode CreateView(const ViewId& view_id); |
76 bool AddView(const ViewId& parent_id, const ViewId& child_id); | 76 bool AddView(const ViewId& parent_id, const ViewId& child_id); |
77 std::vector<const ServerView*> GetViewTree(const ViewId& view_id) const; | 77 std::vector<const ServerView*> GetViewTree(const ViewId& view_id) const; |
78 bool SetViewVisibility(const ViewId& view_id, bool visible); | 78 bool SetViewVisibility(const ViewId& view_id, bool visible); |
79 bool Embed(const ViewId& view_id, | 79 bool Embed(const ViewId& view_id, |
80 mojo::ViewTreeClientPtr client, | 80 mojo::ViewTreeClientPtr client, |
81 mojo::ConnectionSpecificId* connection_id); | 81 ConnectionSpecificId* connection_id); |
82 void Embed(const ViewId& view_id, mojo::URLRequestPtr request); | 82 void Embed(const ViewId& view_id, mojo::URLRequestPtr request); |
83 | 83 |
84 // The following methods are invoked after the corresponding change has been | 84 // The following methods are invoked after the corresponding change has been |
85 // processed. They do the appropriate bookkeeping and update the client as | 85 // processed. They do the appropriate bookkeeping and update the client as |
86 // necessary. | 86 // necessary. |
87 void ProcessViewBoundsChanged(const ServerView* view, | 87 void ProcessViewBoundsChanged(const ServerView* view, |
88 const gfx::Rect& old_bounds, | 88 const gfx::Rect& old_bounds, |
89 const gfx::Rect& new_bounds, | 89 const gfx::Rect& new_bounds, |
90 bool originated_change); | 90 bool originated_change); |
91 void ProcessViewportMetricsChanged(const mojo::ViewportMetrics& old_metrics, | 91 void ProcessViewportMetricsChanged(const mojo::ViewportMetrics& old_metrics, |
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107 const ServerView* relative_view, | 107 const ServerView* relative_view, |
108 mojo::OrderDirection direction, | 108 mojo::OrderDirection direction, |
109 bool originated_change); | 109 bool originated_change); |
110 void ProcessViewDeleted(const ViewId& view, bool originated_change); | 110 void ProcessViewDeleted(const ViewId& view, bool originated_change); |
111 void ProcessWillChangeViewVisibility(const ServerView* view, | 111 void ProcessWillChangeViewVisibility(const ServerView* view, |
112 bool originated_change); | 112 bool originated_change); |
113 void ProcessFocusChanged(const ServerView* old_focused_view, | 113 void ProcessFocusChanged(const ServerView* old_focused_view, |
114 const ServerView* new_focused_view); | 114 const ServerView* new_focused_view); |
115 | 115 |
116 private: | 116 private: |
117 using ViewIdSet = base::hash_set<mojo::Id>; | 117 using ViewIdSet = base::hash_set<Id>; |
118 using ViewMap = std::map<mojo::ConnectionSpecificId, ServerView*>; | 118 using ViewMap = std::map<ConnectionSpecificId, ServerView*>; |
119 | 119 |
120 bool IsViewKnown(const ServerView* view) const; | 120 bool IsViewKnown(const ServerView* view) const; |
121 | 121 |
122 // These functions return true if the corresponding mojom function is allowed | 122 // These functions return true if the corresponding mojom function is allowed |
123 // for this connection. | 123 // for this connection. |
124 bool CanReorderView(const ServerView* view, | 124 bool CanReorderView(const ServerView* view, |
125 const ServerView* relative_view, | 125 const ServerView* relative_view, |
126 mojo::OrderDirection direction) const; | 126 mojo::OrderDirection direction) const; |
127 | 127 |
128 // Deletes a view owned by this connection. Returns true on success. |source| | 128 // Deletes a view owned by this connection. Returns true on success. |source| |
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161 | 161 |
162 // Deletes all Views we own. | 162 // Deletes all Views we own. |
163 void DestroyViews(); | 163 void DestroyViews(); |
164 | 164 |
165 bool CanEmbed(const ViewId& view_id) const; | 165 bool CanEmbed(const ViewId& view_id) const; |
166 void PrepareForEmbed(const ViewId& view_id); | 166 void PrepareForEmbed(const ViewId& view_id); |
167 void RemoveChildrenAsPartOfEmbed(const ViewId& view_id); | 167 void RemoveChildrenAsPartOfEmbed(const ViewId& view_id); |
168 | 168 |
169 // ViewTree: | 169 // ViewTree: |
170 void CreateView( | 170 void CreateView( |
171 mojo::Id transport_view_id, | 171 Id transport_view_id, |
172 const mojo::Callback<void(mojo::ErrorCode)>& callback) override; | 172 const mojo::Callback<void(mojo::ErrorCode)>& callback) override; |
173 void DeleteView(mojo::Id transport_view_id, | 173 void DeleteView(Id transport_view_id, |
174 const mojo::Callback<void(bool)>& callback) override; | 174 const mojo::Callback<void(bool)>& callback) override; |
175 void AddView(mojo::Id parent_id, | 175 void AddView(Id parent_id, |
176 mojo::Id child_id, | 176 Id child_id, |
177 const mojo::Callback<void(bool)>& callback) override; | 177 const mojo::Callback<void(bool)>& callback) override; |
178 void RemoveViewFromParent( | 178 void RemoveViewFromParent( |
179 mojo::Id view_id, | 179 Id view_id, |
180 const mojo::Callback<void(bool)>& callback) override; | 180 const mojo::Callback<void(bool)>& callback) override; |
181 void ReorderView(mojo::Id view_id, | 181 void ReorderView(Id view_id, |
182 mojo::Id relative_view_id, | 182 Id relative_view_id, |
183 mojo::OrderDirection direction, | 183 mojo::OrderDirection direction, |
184 const mojo::Callback<void(bool)>& callback) override; | 184 const mojo::Callback<void(bool)>& callback) override; |
185 void GetViewTree(mojo::Id view_id, | 185 void GetViewTree(Id view_id, |
186 const mojo::Callback<void(mojo::Array<mojo::ViewDataPtr>)>& | 186 const mojo::Callback<void(mojo::Array<mojo::ViewDataPtr>)>& |
187 callback) override; | 187 callback) override; |
188 void SetViewBounds(mojo::Id view_id, | 188 void SetViewBounds(Id view_id, |
189 mojo::RectPtr bounds, | 189 mojo::RectPtr bounds, |
190 const mojo::Callback<void(bool)>& callback) override; | 190 const mojo::Callback<void(bool)>& callback) override; |
191 void SetViewVisibility(mojo::Id view_id, | 191 void SetViewVisibility(Id view_id, |
192 bool visible, | 192 bool visible, |
193 const mojo::Callback<void(bool)>& callback) override; | 193 const mojo::Callback<void(bool)>& callback) override; |
194 void SetViewProperty(mojo::Id view_id, | 194 void SetViewProperty(Id view_id, |
195 const mojo::String& name, | 195 const mojo::String& name, |
196 mojo::Array<uint8_t> value, | 196 mojo::Array<uint8_t> value, |
197 const mojo::Callback<void(bool)>& callback) override; | 197 const mojo::Callback<void(bool)>& callback) override; |
198 void RequestSurface(mojo::Id view_id, | 198 void RequestSurface(Id view_id, |
199 mojo::InterfaceRequest<mojo::Surface> surface, | 199 mojo::InterfaceRequest<mojo::Surface> surface, |
200 mojo::SurfaceClientPtr client) override; | 200 mojo::SurfaceClientPtr client) override; |
201 void Embed(mojo::Id transport_view_id, | 201 void Embed(Id transport_view_id, |
202 mojo::ViewTreeClientPtr client, | 202 mojo::ViewTreeClientPtr client, |
203 const EmbedCallback& callback) override; | 203 const EmbedCallback& callback) override; |
204 void SetFocus(uint32_t view_id) override; | 204 void SetFocus(uint32_t view_id) override; |
205 void SetViewTextInputState(uint32_t view_id, | 205 void SetViewTextInputState(uint32_t view_id, |
206 mojo::TextInputStatePtr state) override; | 206 mojo::TextInputStatePtr state) override; |
207 void SetImeVisibility(mojo::Id transport_view_id, | 207 void SetImeVisibility(Id transport_view_id, |
208 bool visible, | 208 bool visible, |
209 mojo::TextInputStatePtr state) override; | 209 mojo::TextInputStatePtr state) override; |
210 void SetAccessPolicy(mojo::Id transport_view_id, | 210 void SetAccessPolicy(Id transport_view_id, uint32 policy_bitmask) override; |
211 uint32 policy_bitmask) override; | |
212 | 211 |
213 // AccessPolicyDelegate: | 212 // AccessPolicyDelegate: |
214 bool IsRootForAccessPolicy(const ViewId& id) const override; | 213 bool IsRootForAccessPolicy(const ViewId& id) const override; |
215 bool IsViewKnownForAccessPolicy(const ServerView* view) const override; | 214 bool IsViewKnownForAccessPolicy(const ServerView* view) const override; |
216 bool IsViewRootOfAnotherConnectionForAccessPolicy( | 215 bool IsViewRootOfAnotherConnectionForAccessPolicy( |
217 const ServerView* view) const override; | 216 const ServerView* view) const override; |
218 bool IsDescendantOfEmbedRoot(const ServerView* view) override; | 217 bool IsDescendantOfEmbedRoot(const ServerView* view) override; |
219 | 218 |
220 ConnectionManager* connection_manager_; | 219 ConnectionManager* connection_manager_; |
221 | 220 |
222 // Id of this connection as assigned by ConnectionManager. | 221 // Id of this connection as assigned by ConnectionManager. |
223 const mojo::ConnectionSpecificId id_; | 222 const ConnectionSpecificId id_; |
224 | 223 |
225 // ID of the connection that created us. If 0 it indicates either we were | 224 // ID of the connection that created us. If 0 it indicates either we were |
226 // created by the root, or the connection that created us has been destroyed. | 225 // created by the root, or the connection that created us has been destroyed. |
227 mojo::ConnectionSpecificId creator_id_; | 226 ConnectionSpecificId creator_id_; |
228 | 227 |
229 mojo::ViewTreeClient* client_; | 228 mojo::ViewTreeClient* client_; |
230 | 229 |
231 scoped_ptr<view_manager::AccessPolicy> access_policy_; | 230 scoped_ptr<mus::AccessPolicy> access_policy_; |
232 | 231 |
233 // The views created by this connection. This connection owns these objects. | 232 // The views created by this connection. This connection owns these objects. |
234 ViewMap view_map_; | 233 ViewMap view_map_; |
235 | 234 |
236 // The set of views that has been communicated to the client. | 235 // The set of views that has been communicated to the client. |
237 ViewIdSet known_views_; | 236 ViewIdSet known_views_; |
238 | 237 |
239 // The root of this connection. This is a scoped_ptr to reinforce the | 238 // The root of this connection. This is a scoped_ptr to reinforce the |
240 // connection may have no root. A connection has no root if either the root | 239 // connection may have no root. A connection has no root if either the root |
241 // is destroyed or Embed() is invoked on the root. | 240 // is destroyed or Embed() is invoked on the root. |
242 scoped_ptr<ViewId> root_; | 241 scoped_ptr<ViewId> root_; |
243 | 242 |
244 bool is_embed_root_; | 243 bool is_embed_root_; |
245 | 244 |
246 DISALLOW_COPY_AND_ASSIGN(ViewTreeImpl); | 245 DISALLOW_COPY_AND_ASSIGN(ViewTreeImpl); |
247 }; | 246 }; |
248 | 247 |
249 } // namespace view_manager | 248 } // namespace mus |
250 | 249 |
251 #endif // COMPONENTS_MUS_VIEW_TREE_IMPL_H_ | 250 #endif // COMPONENTS_MUS_VIEW_TREE_IMPL_H_ |
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