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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 COMPONENTS_VIEW_MANAGER_PUBLIC_CPP_LIB_VIEW_TREE_CLIENT_IMPL_H_ | |
6 #define COMPONENTS_VIEW_MANAGER_PUBLIC_CPP_LIB_VIEW_TREE_CLIENT_IMPL_H_ | |
7 | |
8 #include "components/view_manager/public/cpp/types.h" | |
9 #include "components/view_manager/public/cpp/view.h" | |
10 #include "components/view_manager/public/cpp/view_tree_connection.h" | |
11 #include "components/view_manager/public/interfaces/view_tree.mojom.h" | |
12 #include "third_party/mojo/src/mojo/public/cpp/bindings/strong_binding.h" | |
13 | |
14 namespace mojo { | |
15 class ViewTreeConnection; | |
16 class ViewTreeDelegate; | |
17 | |
18 // Manages the connection with the View Manager service. | |
19 class ViewTreeClientImpl : public ViewTreeConnection, public ViewTreeClient { | |
20 public: | |
21 ViewTreeClientImpl(ViewTreeDelegate* delegate, | |
22 InterfaceRequest<ViewTreeClient> request); | |
23 ~ViewTreeClientImpl() override; | |
24 | |
25 bool connected() const { return tree_; } | |
26 ConnectionSpecificId connection_id() const { return connection_id_; } | |
27 | |
28 // API exposed to the view implementations that pushes local changes to the | |
29 // service. | |
30 void DestroyView(Id view_id); | |
31 | |
32 // These methods take TransportIds. For views owned by the current connection, | |
33 // the connection id high word can be zero. In all cases, the TransportId 0x1 | |
34 // refers to the root view. | |
35 void AddChild(Id child_id, Id parent_id); | |
36 void RemoveChild(Id child_id, Id parent_id); | |
37 | |
38 void Reorder(Id view_id, Id relative_view_id, OrderDirection direction); | |
39 | |
40 // Returns true if the specified view was created by this connection. | |
41 bool OwnsView(Id id) const; | |
42 | |
43 void SetBounds(Id view_id, const Rect& bounds); | |
44 void SetFocus(Id view_id); | |
45 void SetVisible(Id view_id, bool visible); | |
46 void SetProperty(Id view_id, | |
47 const std::string& name, | |
48 const std::vector<uint8_t>& data); | |
49 void SetViewTextInputState(Id view_id, TextInputStatePtr state); | |
50 void SetImeVisibility(Id view_id, bool visible, TextInputStatePtr state); | |
51 void SetAccessPolicy(Id view_id, uint32_t access_policy); | |
52 | |
53 void Embed(Id view_id, | |
54 ViewTreeClientPtr client, | |
55 const ViewTree::EmbedCallback& callback); | |
56 | |
57 void RequestSurface(Id view_id, | |
58 InterfaceRequest<Surface> surface, | |
59 SurfaceClientPtr client); | |
60 | |
61 void set_change_acked_callback(const Callback<void(void)>& callback) { | |
62 change_acked_callback_ = callback; | |
63 } | |
64 void ClearChangeAckedCallback() { change_acked_callback_.reset(); } | |
65 | |
66 // Start/stop tracking views. While tracked, they can be retrieved via | |
67 // ViewTreeConnection::GetViewById. | |
68 void AddView(View* view); | |
69 void RemoveView(Id view_id); | |
70 | |
71 bool is_embed_root() const { return is_embed_root_; } | |
72 | |
73 // Called after the root view's observers have been notified of destruction | |
74 // (as the last step of ~View). This ordering ensures that the View Manager | |
75 // is torn down after the root. | |
76 void OnRootDestroyed(View* root); | |
77 | |
78 private: | |
79 typedef std::map<Id, View*> IdToViewMap; | |
80 | |
81 Id CreateViewOnServer(); | |
82 | |
83 // Overridden from ViewTreeConnection: | |
84 View* GetRoot() override; | |
85 View* GetViewById(Id id) override; | |
86 View* GetFocusedView() override; | |
87 View* CreateView() override; | |
88 bool IsEmbedRoot() override; | |
89 ConnectionSpecificId GetConnectionId() override; | |
90 | |
91 // Overridden from ViewTreeClient: | |
92 void OnEmbed(ConnectionSpecificId connection_id, | |
93 ViewDataPtr root, | |
94 ViewTreePtr tree, | |
95 Id focused_view_id, | |
96 uint32_t access_policy) override; | |
97 void OnEmbeddedAppDisconnected(Id view_id) override; | |
98 void OnUnembed() override; | |
99 void OnViewBoundsChanged(Id view_id, | |
100 RectPtr old_bounds, | |
101 RectPtr new_bounds) override; | |
102 void OnViewViewportMetricsChanged(ViewportMetricsPtr old_metrics, | |
103 ViewportMetricsPtr new_metrics) override; | |
104 void OnViewHierarchyChanged(Id view_id, | |
105 Id new_parent_id, | |
106 Id old_parent_id, | |
107 Array<ViewDataPtr> views) override; | |
108 void OnViewReordered(Id view_id, | |
109 Id relative_view_id, | |
110 OrderDirection direction) override; | |
111 void OnViewDeleted(Id view_id) override; | |
112 void OnViewVisibilityChanged(Id view_id, bool visible) override; | |
113 void OnViewDrawnStateChanged(Id view_id, bool drawn) override; | |
114 void OnViewSharedPropertyChanged(Id view_id, | |
115 const String& name, | |
116 Array<uint8_t> new_data) override; | |
117 void OnViewInputEvent(Id view_id, | |
118 EventPtr event, | |
119 const Callback<void()>& callback) override; | |
120 void OnViewFocused(Id focused_view_id) override; | |
121 | |
122 void RootDestroyed(View* root); | |
123 | |
124 void OnActionCompleted(bool success); | |
125 | |
126 Callback<void(bool)> ActionCompletedCallback(); | |
127 | |
128 ConnectionSpecificId connection_id_; | |
129 ConnectionSpecificId next_id_; | |
130 | |
131 Callback<void(void)> change_acked_callback_; | |
132 | |
133 ViewTreeDelegate* delegate_; | |
134 | |
135 View* root_; | |
136 | |
137 IdToViewMap views_; | |
138 | |
139 View* capture_view_; | |
140 View* focused_view_; | |
141 View* activated_view_; | |
142 | |
143 Binding<ViewTreeClient> binding_; | |
144 ViewTreePtr tree_; | |
145 | |
146 bool is_embed_root_; | |
147 | |
148 bool in_destructor_; | |
149 | |
150 MOJO_DISALLOW_COPY_AND_ASSIGN(ViewTreeClientImpl); | |
151 }; | |
152 | |
153 } // namespace mojo | |
154 | |
155 #endif // COMPONENTS_VIEW_MANAGER_PUBLIC_CPP_LIB_VIEW_TREE_CLIENT_IMPL_H_ | |
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