Cable-Desktop/js/read_receipts.js
lilia 02ea4f2475 Use read receipt envelope to infer startExpirationTime
Avoids display of phantom messages that are only received and marked
read locally long after they have expired on another linked device.
2016-09-28 17:20:02 -07:00

47 行
1.7 KiB
JavaScript

/*
* vim: ts=4:sw=4:expandtab
*/
;(function() {
'use strict';
window.Whisper = window.Whisper || {};
Whisper.ReadReceipts = new (Backbone.Collection.extend({
initialize: function() {
this.on('add', this.onReceipt);
},
forMessage: function(message) {
var receipt = this.findWhere({
sender: message.get('source'),
timestamp: message.get('sent_at')
});
if (receipt) {
console.log('Found early read receipt for message');
this.remove(receipt);
return receipt;
}
},
onReceipt: function(receipt) {
var messages = new Whisper.MessageCollection();
messages.fetchSentAt(receipt.get('timestamp')).then(function() {
var message = messages.find(function(message) {
return (message.isIncoming() && message.isUnread() &&
message.get('source') === receipt.get('sender'));
});
if (message) {
this.remove(receipt);
message.markRead(receipt.get('read_at')).then(function() {
var conversation = ConversationController.get({
id: message.get('conversationId')
});
if (conversation) {
// notify frontend listeners
conversation.trigger('read', message);
}
});
} else {
console.log('No message for read receipt');
}
}.bind(this));
}
}))();
})();