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var JarrDispatcher = require('../dispatcher/JarrDispatcher');
var MiddlePanelActionTypes = require('../constants/JarrConstants').MiddlePanelActionTypes;
var EventEmitter = require('events').EventEmitter;
var CHANGE_EVENT = 'change_middle_panel';
var assign = require('object-assign');
var MiddlePanelStore = assign({}, EventEmitter.prototype, {
_datas: {filter: 'unread', articles: [],
parent_filter_type: null, parent_filter_id: null},
getAll: function() {
return this._datas;
},
getArticles: function() {
var articles = [];
var key = null;
var id = null;
if (this._datas.parent_filter_type) {
key = this._datas.parent_filter_type + '_id';
id = this._datas.parent_filter_id;
}
this._datas.articles.map(function(article) {
if(!key || article[key] == id) {
articles.push(article);
}
});
return articles;
},
setFilter: function(value) {
if(this._datas.filter != value) {
this._datas.filter = value;
this.emitChange();
}
},
setParentFilter: function(type, value) {
if(this._datas['parent_filter_id'] != value
|| this._datas['parent_filter_type'] != type) {
this._datas['parent_filter_type'] = type;
this._datas['parent_filter_id'] = value;
this.emitChange();
}
},
emitChange: function() {
this.emit(CHANGE_EVENT);
},
addChangeListener: function(callback) {
this.on(CHANGE_EVENT, callback);
},
removeChangeListener: function(callback) {
this.removeListener(CHANGE_EVENT, callback);
},
});
MiddlePanelStore.dispatchToken = JarrDispatcher.register(function(action) {
switch(action.type) {
case MiddlePanelActionTypes.RELOAD_MIDDLE_PANEL:
MiddlePanelStore._datas['articles'] = action.articles;
MiddlePanelStore.emitChange();
break;
// PARENT FILTER
case MiddlePanelActionTypes.MIDDLE_PANEL_PARENT_FILTER:
MiddlePanelStore.setParentFilter(action.parent_type,
action.parent_id);
break;
// FILTER
case MiddlePanelActionTypes.MIDDLE_PANEL_FILTER_ALL:
MiddlePanelStore.setFilter('all');
break;
case MiddlePanelActionTypes.MIDDLE_PANEL_FILTER_UNREAD:
MiddlePanelStore.setFilter('unread');
break;
case MiddlePanelActionTypes.MIDDLE_PANEL_FILTER_LIKED:
MiddlePanelStore.setFilter('liked');
break;
default:
// do nothing
}
});
module.exports = MiddlePanelStore;
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