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1 // Copyright (c) 2011 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 CHROME_BROWSER_UI_INTENTS_INTENTS_MODEL_H_ | |
6 #define CHROME_BROWSER_UI_INTENTS_INTENTS_MODEL_H_ | |
7 #pragma once | |
8 | |
9 #include "base/values.h" | |
10 #include "chrome/browser/intents/web_intents_registry.h" | |
11 #include "ui/base/models/tree_node_model.h" | |
12 | |
13 class WebIntentsRegistry; | |
14 | |
15 // The tree structure is a TYPE_ROOT node with title="", | |
16 // children are TYPE_ORIGIN nodes with title=origin, whose | |
17 // children are TYPE_SERVICE nodes with title=origin, and | |
18 // will be of type ServiceTreeNode with data on individual | |
19 // services. | |
20 class IntentsTreeNode : public ui::TreeNode<IntentsTreeNode> { | |
21 public: | |
22 IntentsTreeNode(); | |
23 explicit IntentsTreeNode(const string16& title); | |
24 | |
25 virtual ~IntentsTreeNode(); | |
26 | |
27 enum NodeType { | |
28 TYPE_ROOT, | |
29 TYPE_ORIGIN, | |
30 TYPE_SERVICE, | |
31 }; | |
32 | |
33 NodeType Type() const { return type_; } | |
34 | |
35 protected: | |
36 IntentsTreeNode(const string16& title, NodeType type) | |
37 : ui::TreeNode<IntentsTreeNode>(title), | |
38 type_(type) {} | |
39 | |
40 private: | |
41 NodeType type_; | |
42 }; | |
43 | |
44 // Tree node representing particular services presented by an origin. | |
45 class ServiceTreeNode : public IntentsTreeNode { | |
46 public: | |
47 explicit ServiceTreeNode(const string16& title); | |
48 virtual ~ServiceTreeNode(); | |
49 | |
50 const string16& ServiceName() const { return service_name_; } | |
51 const string16& ServiceUrl() const { return service_url_; } | |
52 const string16& IconUrl() const { return icon_url_; } | |
53 const string16& Action() const { return action_; } | |
54 const base::ListValue& Types() const { return types_; } | |
55 bool IsBlocked() const { return blocked_; } | |
56 bool IsDisabled() const { return disabled_; } | |
57 | |
58 void SetServiceName(string16 name) { service_name_ = name; } | |
59 void SetServiceUrl(string16 url) { service_url_ = url; } | |
60 void SetIconUrl(string16 url) { icon_url_ = url; } | |
61 void SetAction(string16 action) { action_ = action; } | |
62 void AddType(string16 type) { types_.Append(Value::CreateStringValue(type)); } | |
63 void SetBlocked(bool blocked) { blocked_ = blocked; } | |
64 void SetDisabled(bool disabled) { disabled_ = disabled; } | |
65 | |
66 private: | |
67 string16 service_name_; | |
68 string16 icon_url_; | |
69 string16 service_url_; | |
70 string16 action_; | |
71 base::ListValue types_; | |
72 | |
73 // TODO(gbillock): these are kind of a placeholder for exceptions data. | |
74 bool blocked_; | |
75 bool disabled_; | |
76 }; | |
77 | |
78 // UI-backing tree model of the data in the WebIntentsRegistry. | |
79 class IntentsModel : public ui::TreeNodeModel<IntentsTreeNode>, | |
80 public WebIntentsRegistry::Consumer { | |
81 public: | |
82 // Because nodes are fetched in a background thread, they are not | |
83 // present at the time the Model is created. The Model then notifies its | |
84 // observers for every item added. | |
85 class Observer : public ui::TreeModelObserver { | |
86 public: | |
87 virtual void TreeModelBeginBatch(IntentsModel* model) {} | |
88 virtual void TreeModelEndBatch(IntentsModel* model) {} | |
89 }; | |
90 | |
91 explicit IntentsModel(WebIntentsRegistry* intents_registry); | |
92 virtual ~IntentsModel(); | |
93 | |
94 void AddIntentsTreeObserver(Observer* observer); | |
95 void RemoveIntentsTreeObserver(Observer* observer); | |
96 | |
97 string16 GetTreeNodeId(IntentsTreeNode* node); | |
98 IntentsTreeNode* GetTreeNode(std::string path_id); | |
99 void GetChildNodeList(IntentsTreeNode* parent, int start, int count, | |
100 base::ListValue* nodes); | |
101 void GetIntentsTreeNodeDictionary(const IntentsTreeNode& node, | |
102 base::DictionaryValue* dict); | |
103 | |
104 virtual void OnIntentsQueryDone( | |
105 WebIntentsRegistry::QueryID query_id, | |
106 const std::vector<WebIntentData>& intents) OVERRIDE; | |
107 | |
108 private: | |
109 // Loads the data model from the WebIntentsRegistry. | |
110 // TODO(gbillock): need an observer on that to absorb async updates? | |
111 void LoadModel(); | |
112 | |
113 // Do batch-specific notifies for updates coming from the LoadModel. | |
114 void NotifyObserverBeginBatch(); | |
115 void NotifyObserverEndBatch(); | |
116 | |
117 // The backing registry. Weak pointer. | |
118 WebIntentsRegistry* intents_registry_; | |
119 | |
120 // Separate list of observers that'll get batch updates. | |
121 ObserverList<Observer> intents_observer_list_; | |
122 | |
123 // Batch update nesting level. Incremented to indicate that we're in | |
124 // the middle of a batch update. | |
125 int batch_update_; | |
126 }; | |
127 | |
128 #endif // CHROME_BROWSER_UI_INTENTS_INTENTS_MODEL_H_ | |
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