signal-desktop/js/read_receipts.js
2017-08-04 12:03:25 -07:00

49 lines
1.8 KiB
JavaScript

/*
* vim: ts=4:sw=4:expandtab
*/
;(function() {
'use strict';
window.Whisper = window.Whisper || {};
Whisper.ReadReceipts = new (Backbone.Collection.extend({
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();
return 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) {
return message.markRead(receipt.get('read_at')).then(function() {
this.notifyConversation(message);
this.remove(receipt);
}.bind(this));
} else {
console.log(
'No message for read receipt',
receipt.get('sender'), receipt.get('timestamp')
);
}
}.bind(this));
},
notifyConversation: function(message) {
var conversation = ConversationController.get({
id: message.get('conversationId')
});
if (conversation) {
conversation.onReadMessage(message);
}
},
}))();
})();