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var JarrDispatcher = require('../dispatcher/JarrDispatcher');
var ActionTypes = require('../constants/JarrConstants');
var EventEmitter = require('events').EventEmitter;
var CHANGE_EVENT = 'change_menu';
var assign = require('object-assign');
var MenuStore = assign({}, EventEmitter.prototype, {
_datas: {filter: 'unread', feeds: {}, categories: {}, categories_order: [],
active_type: null, active_id: null,
is_admin: false, crawling_method: 'default',
all_unread_count: 0, max_error: 0, error_threshold: 0,
all_folded: false},
getAll: function() {
return this._datas;
},
setFilter: function(value) {
if(this._datas.filter != value) {
this._datas.filter = value;
this._datas.all_folded = null;
this.emitChange();
}
},
setActive: function(type, value) {
if(this._datas.active_id != value || this._datas.active_type != type) {
this._datas.active_type = type;
this._datas.active_id = value;
this._datas.all_folded = null;
this.emitChange();
}
},
emitChange: function() {
this.emit(CHANGE_EVENT);
},
addChangeListener: function(callback) {
this.on(CHANGE_EVENT, callback);
},
removeChangeListener: function(callback) {
this.removeListener(CHANGE_EVENT, callback);
},
});
MenuStore.dispatchToken = JarrDispatcher.register(function(action) {
switch(action.type) {
case ActionTypes.RELOAD_MENU:
MenuStore._datas['feeds'] = action.feeds;
MenuStore._datas['categories'] = action.categories;
MenuStore._datas['categories_order'] = action.categories_order;
MenuStore._datas['is_admin'] = action.is_admin;
MenuStore._datas['max_error'] = action.max_error;
MenuStore._datas['error_threshold'] = action.error_threshold;
MenuStore._datas['crawling_method'] = action.crawling_method;
MenuStore._datas['all_unread_count'] = action.all_unread_count;
MenuStore._datas.all_folded = null;
MenuStore.emitChange();
break;
case ActionTypes.PARENT_FILTER:
MenuStore.setActive(action.filter_type, action.filter_id);
if(action.filters && action.articles && !action.filters.query
&& action.filters.filter == 'unread') {
var new_unread = {};
action.articles.map(function(article) {
if(!(article.feed_id in new_unread)) {
new_unread[article.feed_id] = 0;
}
if(!article.read) {
new_unread[article.feed_id] += 1;
}
});
var changed = false;
for(var feed_id in new_unread) {
var old_unread = MenuStore._datas.feeds[feed_id].unread;
if(old_unread == new_unread[feed_id]) {
continue;
}
changed = true;
MenuStore._datas.feeds[feed_id].unread = new_unread[feed_id];
var cat_id = MenuStore._datas.feeds[feed_id].category_id;
MenuStore._datas.categories[cat_id].unread -= old_unread;
MenuStore._datas.categories[cat_id].unread += new_unread[feed_id];
}
if(changed) {
MenuStore._datas.all_folded = null;
MenuStore.emitChange();
}
}
break;
case ActionTypes.MENU_FILTER:
MenuStore.setFilter(action.filter);
break;
case ActionTypes.CHANGE_ATTR:
if(action.attribute != 'read') {
return;
}
var val = action.value_num;
action.articles.map(function(article) {
MenuStore._datas.categories[article.category_id].unread += val;
MenuStore._datas.feeds[article.feed_id].unread += val;
});
MenuStore._datas.all_folded = null;
MenuStore.emitChange();
break;
case ActionTypes.LOAD_ARTICLE:
if(!action.was_read_before) {
MenuStore._datas.categories[action.article.category_id].unread -= 1;
MenuStore._datas.feeds[action.article.feed_id].unread -= 1;
MenuStore._datas.all_folded = null;
MenuStore.emitChange();
}
break;
case ActionTypes.TOGGLE_MENU_FOLD:
MenuStore._datas.all_folded = action.all_folded;
MenuStore.emitChange();
break;
case ActionTypes.MARK_ALL_AS_READ:
action.articles.map(function(art) {
if(!art.read) {
MenuStore._datas.feeds[art.feed_id].unread -= 1;
if(art.category_id) {
MenuStore._datas.categories[art.category_id].unread -= 1;
}
}
});
MenuStore._datas.all_folded = null;
MenuStore.emitChange();
break;
default:
// do nothing
}
});
module.exports = MenuStore;
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