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80 lines
3.2 KiB
JavaScript
80 lines
3.2 KiB
JavaScript
/*
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* vim: ts=4:sw=4:expandtab
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*/
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;(function() {
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'use strict';
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window.Whisper = window.Whisper || {};
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Whisper.ReadReceipts = new (Backbone.Collection.extend({
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forMessage: function(conversation, message) {
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if (!message.isOutgoing()) {
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return [];
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}
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var ids = [];
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if (conversation.isPrivate()) {
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ids = [conversation.id];
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} else {
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ids = conversation.get('members');
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}
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var receipts = this.filter(function(receipt) {
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return receipt.get('timestamp') === message.get('sent_at')
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&& _.contains(ids, receipt.get('reader'));
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});
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if (receipts.length) {
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console.log('Found early read receipts for message');
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this.remove(receipts);
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}
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return receipts;
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},
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onReceipt: function(receipt) {
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var messages = new Whisper.MessageCollection();
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return messages.fetchSentAt(receipt.get('timestamp')).then(function() {
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if (messages.length === 0) { return; }
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var message = messages.find(function(message) {
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return (message.isOutgoing() && receipt.get('reader') === message.get('conversationId'));
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});
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if (message) { return message; }
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var groups = new Whisper.GroupCollection();
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return groups.fetchGroups(receipt.get('reader')).then(function() {
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var ids = groups.pluck('id');
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ids.push(receipt.get('reader'));
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return messages.find(function(message) {
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return (message.isOutgoing() &&
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_.contains(ids, message.get('conversationId')));
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});
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});
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}).then(function(message) {
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if (message) {
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var read_by = message.get('read_by') || [];
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read_by.push(receipt.get('reader'));
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return new Promise(function(resolve, reject) {
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message.save({ read_by: read_by }).then(function() {
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// notify frontend listeners
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var conversation = ConversationController.get(
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message.get('conversationId')
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);
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if (conversation) {
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conversation.trigger('read', message);
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}
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this.remove(receipt);
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resolve();
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}.bind(this), reject);
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}.bind(this));
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} else {
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console.log(
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'No message for read receipt',
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receipt.get('reader'),
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receipt.get('timestamp')
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);
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}
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}.bind(this)).catch(function(error) {
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console.log(
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'ReadReceipts.onReceipt error:',
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error && error.stack ? error.stack : error
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);
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});
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},
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}))();
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})();
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