signal-desktop/js/views/conversation_list_view.js

/*
 * vim: ts=4:sw=4:expandtab
 */
(function () {
    'use strict';
    window.Whisper = window.Whisper || {};

    Whisper.ConversationListView = Whisper.ListView.extend({
        tagName: 'div',
        itemView: Whisper.ConversationListItemView,
        updateLocation: function(conversation) {
            var $el = this.$('.' + conversation.cid);

            if (!$el || !$el.length) {
                console.log(
                    'updateLocation: did not find element for conversation',
                    conversation.idForLogging()
                );
                return;
            }
            if ($el.length > 1) {
                console.log(
                    'updateLocation: found more than one element for conversation',
                    conversation.idForLogging()
                );
                return;
            }

            var $allConversations = this.$('.conversation-list-item');
            var inboxCollection = getInboxCollection();
            var index = inboxCollection.indexOf(conversation);

            var elIndex = $allConversations.index($el);
            if (elIndex < 0) {
                console.log(
                    'updateLocation: did not find index for conversation',
                    conversation.idForLogging()
                );
            }

            if (index === elIndex) {
                return;
            }
            if (index === 0) {
                this.$el.prepend($el);
            } else if (index === this.collection.length - 1) {
                this.$el.append($el);
            } else {
                var targetConversation = inboxCollection.at(index - 1);
                var target = this.$('.' + targetConversation.cid);
                $el.insertAfter(target);
            }
        },
        removeItem: function(conversation) {
            var $el = this.$('.' + conversation.cid);
            if ($el && $el.length > 0) {
                $el.remove();
            }
        }
    });
})();