121 lines
3.2 KiB
JavaScript
121 lines
3.2 KiB
JavaScript
(function() {
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'use strict';
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window.Whisper = window.Whisper || {};
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function destroyExpiredMessages() {
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// Load messages that have expired and destroy them
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var expired = new Whisper.MessageCollection();
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expired.on('add', function(message) {
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console.log('message', message.get('sent_at'), 'expired');
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var conversation = message.getConversation();
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if (conversation) {
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conversation.trigger('expired', message);
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}
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// We delete after the trigger to allow the conversation time to process
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// the expiration before the message is removed from the database.
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message.destroy();
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});
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expired.on('reset', throttledCheckExpiringMessages);
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expired.fetchExpired();
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}
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var timeout;
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function checkExpiringMessages() {
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// Look up the next expiring message and set a timer to destroy it
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var expiring = new Whisper.MessageCollection();
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expiring.once('add', function(next) {
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var expires_at = next.get('expires_at');
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console.log('next message expires', new Date(expires_at).toISOString());
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var wait = expires_at - Date.now();
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// In the past
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if (wait < 0) {
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wait = 0;
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}
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// Too far in the future, since it's limited to a 32-bit value
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if (wait > 2147483647) {
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wait = 2147483647;
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}
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clearTimeout(timeout);
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timeout = setTimeout(destroyExpiredMessages, wait);
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});
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expiring.fetchNextExpiring();
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}
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var throttledCheckExpiringMessages = _.throttle(checkExpiringMessages, 1000);
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Whisper.ExpiringMessagesListener = {
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init: function(events) {
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checkExpiringMessages();
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events.on('timetravel', throttledCheckExpiringMessages);
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},
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update: throttledCheckExpiringMessages,
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};
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var TimerOption = Backbone.Model.extend({
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getName: function() {
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return (
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i18n(['timerOption', this.get('time'), this.get('unit')].join('_')) ||
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moment.duration(this.get('time'), this.get('unit')).humanize()
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);
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},
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getAbbreviated: function() {
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return i18n(
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['timerOption', this.get('time'), this.get('unit'), 'abbreviated'].join(
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'_'
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)
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);
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},
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});
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Whisper.ExpirationTimerOptions = new (Backbone.Collection.extend({
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model: TimerOption,
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getName: function(seconds) {
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if (!seconds) {
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seconds = 0;
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}
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var o = this.findWhere({ seconds: seconds });
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if (o) {
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return o.getName();
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} else {
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return [seconds, 'seconds'].join(' ');
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}
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},
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getAbbreviated: function(seconds) {
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if (!seconds) {
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seconds = 0;
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}
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var o = this.findWhere({ seconds: seconds });
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if (o) {
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return o.getAbbreviated();
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} else {
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return [seconds, 's'].join('');
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}
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},
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}))(
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[
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[0, 'seconds'],
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[5, 'seconds'],
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[10, 'seconds'],
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[30, 'seconds'],
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[1, 'minute'],
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[5, 'minutes'],
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[30, 'minutes'],
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[1, 'hour'],
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[6, 'hours'],
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[12, 'hours'],
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[1, 'day'],
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[1, 'week'],
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].map(function(o) {
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var duration = moment.duration(o[0], o[1]); // 5, 'seconds'
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return {
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time: o[0],
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unit: o[1],
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seconds: duration.asSeconds(),
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};
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})
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);
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})();
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