abe7ef3d18
When fetching notifications this merges existing notifications and changes their appearance in the dropdown if the html or the unread status changed. This doesn't update all notifications in the dropdown but only those that are returned by the server. Related to #7247.
115 lines
3.8 KiB
JavaScript
115 lines
3.8 KiB
JavaScript
app.collections.Notifications = Backbone.Collection.extend({
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model: app.models.Notification,
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// URL parameter
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/* eslint-disable camelcase */
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url: Routes.notifications({per_page: 10, page: 1}),
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/* eslint-enable camelcase */
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page: 2,
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perPage: 5,
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unreadCount: 0,
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unreadCountByType: {},
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timeout: 300000, // 5 minutes
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initialize: function() {
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this.fetch();
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setInterval(this.pollNotifications.bind(this), this.timeout);
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Diaspora.BrowserNotification.requestPermission();
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},
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pollNotifications: function() {
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var unreadCountBefore = this.unreadCount;
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this.fetch();
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this.once("finishedLoading", function() {
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if (unreadCountBefore < this.unreadCount) {
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Diaspora.BrowserNotification.spawnNotification(
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Diaspora.I18n.t("notifications.new_notifications", {count: this.unreadCount}));
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}
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}, this);
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},
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fetch: function(options) {
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options = options || {};
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options.remove = false;
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options.merge = true;
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options.parse = true;
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Backbone.Collection.prototype.fetch.apply(this, [options]);
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},
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fetchMore: function() {
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var hasMoreNotifications = (this.page * this.perPage) <= this.length;
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// There are more notifications to load on the current page
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if (hasMoreNotifications) {
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this.page++;
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// URL parameter
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/* eslint-disable camelcase */
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var route = Routes.notifications({per_page: this.perPage, page: this.page});
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/* eslint-enable camelcase */
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this.fetch({url: route, pushBack: true});
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}
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},
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/**
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* Adds new models to the collection at the end or at the beginning of the collection and
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* then fires an event for each model of the collection. It will fire a different event
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* based on whether the models were added at the end (typically when the scroll triggers to load more
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* notifications) or at the beginning (new notifications have been added to the front of the list).
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*/
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set: function(items, options) {
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options = options || {};
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options.at = options.pushBack ? this.length : 0;
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// Retreive back the new created models
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var models = [];
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var accu = function(model) { models.push(model); };
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this.on("add", accu);
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Backbone.Collection.prototype.set.apply(this, [items, options]);
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this.off("add", accu);
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if (options.pushBack) {
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models.forEach(function(model) { this.trigger("pushBack", model); }.bind(this));
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} else {
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// Fires events in the reverse order so that the first event is prepended in first position
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models.reverse();
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models.forEach(function(model) { this.trigger("pushFront", model); }.bind(this));
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}
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this.trigger("finishedLoading");
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},
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parse: function(response) {
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this.unreadCount = response.unread_count;
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this.unreadCountByType = response.unread_count_by_type;
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return _.map(response.notification_list, function(item) {
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/* eslint-disable new-cap */
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var model = new this.model(item);
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/* eslint-enable new-cap */
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model.on("userChangedUnreadStatus", this.onChangedUnreadStatus.bind(this));
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model.on("change:unread", function() { this.trigger("update"); }.bind(this));
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return model;
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}.bind(this));
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},
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setAllRead: function() {
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this.forEach(function(model) { model.setRead(); });
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},
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setRead: function(guid) {
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this.find(function(model) { return model.guid === guid; }).setRead();
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},
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setUnread: function(guid) {
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this.find(function(model) { return model.guid === guid; }).setUnread();
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},
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onChangedUnreadStatus: function(model) {
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if (model.get("unread") === true) {
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this.unreadCount++;
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this.unreadCountByType[model.get("type")]++;
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} else {
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this.unreadCount = Math.max(this.unreadCount - 1, 0);
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this.unreadCountByType[model.get("type")] = Math.max(this.unreadCountByType[model.get("type")] - 1, 0);
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}
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this.trigger("update");
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}
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});
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