Mercurial > hg > dml-open-vis
comparison src/DML/MainVisBundle/Resources/assets/marionette/modules/ContextModule/ContextModule.40-AppContext.js @ 0:493bcb69166c
added public content
author | Daniel Wolff |
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date | Tue, 09 Feb 2016 20:54:02 +0100 |
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1 "use strict"; | |
2 | |
3 App.module("ContextModule", function(ContextModule, App, Backbone, Marionette, $, _, Logger) { | |
4 | |
5 // Define private variables | |
6 var logger = null; | |
7 | |
8 ContextModule.addInitializer(function(options){ | |
9 | |
10 logger = Logger.get("ContextModule.AppContext"); | |
11 logger.setLevel(Logger.DEBUG); | |
12 | |
13 /** | |
14 * AppContext is an object that describes the current user’s environment. | |
15 * It keeps the current state, a history of states and state bookmarks. | |
16 */ | |
17 ContextModule.AppContext = Backbone.Model.extend({ | |
18 defaults: function() { | |
19 return { | |
20 state: new ContextModule.State(), | |
21 stateHistory: new ContextModule.StateHistory(), | |
22 stateBookmarks: new ContextModule.StateBookmarkCollection() | |
23 }; | |
24 }, | |
25 | |
26 /** | |
27 * @memberOf App.ContextModule.AppContext | |
28 */ | |
29 initialize: function() { | |
30 this._modificationPropagationEnabled = true; | |
31 this._linkBetweenStateAndStateHistoryEnabled = true; | |
32 this._attributesWereModified = false; | |
33 | |
34 this._registerStateChange(); | |
35 | |
36 this.attributes.state.bind("change", this._registerStateChange, this); | |
37 this.attributes.stateHistory.bind("change", this._registerStateHistoryChange, this); | |
38 this.attributes.stateBookmarks.bind("change", this._registerStateBookmarksChange, this); | |
39 }, | |
40 | |
41 /** | |
42 * @memberOf App.ContextModule.AppContext | |
43 */ | |
44 serialize: function() { | |
45 //logger.debug("method called: AppContext::serialize"); | |
46 var result = { | |
47 stateHistory: this.attributes.stateHistory.serialize(), | |
48 stateBookmarks: this.attributes.stateBookmarks.serialize(), | |
49 }; | |
50 | |
51 return result; | |
52 }, | |
53 | |
54 /** | |
55 * @memberOf App.ContextModule.AppContext | |
56 */ | |
57 unserialize: function(serializedAttributes) { | |
58 //logger.debug("method called: AppContext::unserialize"); | |
59 this._modificationPropagationEnabled = false; | |
60 | |
61 var fixedSerializedAttributes = serializedAttributes; | |
62 if (!_.isSimpleObject(fixedSerializedAttributes)) { | |
63 logger.warn("AppContext::unserialize called for not an object: ", serializedAttributes); | |
64 fixedSerializedAttributes = {}; | |
65 } | |
66 this.attributes.stateBookmarks.unserialize(fixedSerializedAttributes.stateBookmarks); | |
67 | |
68 var serializedStateHistory = fixedSerializedAttributes["stateHistory"]; | |
69 if (!_.isSimpleObject(serializedStateHistory)) { | |
70 serializedStateHistory = {}; | |
71 } | |
72 this._linkBetweenStateAndStateHistoryEnabled = false; | |
73 this.attributes.state.unserialize(serializedStateHistory.currentSerializedState); | |
74 serializedStateHistory.currentSerializedState = this.attributes.state.serialize(); | |
75 this.attributes.stateHistory.unserialize(serializedStateHistory); | |
76 this._linkBetweenStateAndStateHistoryEnabled = true; | |
77 | |
78 this._triggerModificationEventsIfNeeded(); | |
79 this._modificationPropagationEnabled = true; | |
80 }, | |
81 | |
82 _registerStateChange: function() { | |
83 if (this._linkBetweenStateAndStateHistoryEnabled) { | |
84 this.attributes.stateHistory.set("currentSerializedState", this.attributes.state.serialize()); | |
85 } | |
86 this._registerModificationOfAttribute(); | |
87 }, | |
88 | |
89 _registerStateHistoryChange: function() { | |
90 if (this._linkBetweenStateAndStateHistoryEnabled) { | |
91 this.attributes.state.unserialize(this.attributes.stateHistory.get("currentSerializedState")); | |
92 } | |
93 if (this._stateHistoryModificationPropagationEnabled) { | |
94 this._registerModificationOfAttribute(); | |
95 } | |
96 }, | |
97 | |
98 _registerStateBookmarksChange: function() { | |
99 this._registerModificationOfAttribute(); | |
100 }, | |
101 | |
102 _registerModificationOfAttribute: function() { | |
103 this._attributesWereModified = true; | |
104 if (this._modificationPropagationEnabled) { | |
105 this._triggerModificationEventsIfNeeded(); | |
106 }; | |
107 }, | |
108 | |
109 _triggerModificationEventsIfNeeded: function() { | |
110 if (this._attributesWereModified) { | |
111 this.trigger("change"); | |
112 } | |
113 this._attributesWereModified = false; | |
114 }, | |
115 }); | |
116 | |
117 }); | |
118 }, Logger); |