zulip/static/js/message_util.js

99 lines
3.4 KiB
JavaScript

"use strict";
exports.do_unread_count_updates = function do_unread_count_updates(messages) {
unread.process_loaded_messages(messages);
unread_ui.update_unread_counts();
resize.resize_page_components();
};
function add_messages(messages, msg_list, opts) {
if (!messages) {
return undefined;
}
loading.destroy_indicator($("#page_loading_indicator"));
const render_info = msg_list.add_messages(messages, opts);
return render_info;
}
// We need to check if the message content contains the specified HTML
// elements. We wrap the message.content in a <div>; this is
// important because $("Text <a>link</a>").find("a") returns nothing;
// one needs an outer element wrapping an object to use this
// construction.
function is_element_in_message_content(message, element_selector) {
return $(`<div>${message.content}</div>`).find(`${element_selector}`).length > 0;
}
exports.message_has_link = function (message) {
return is_element_in_message_content(message, "a");
};
exports.message_has_image = function (message) {
return is_element_in_message_content(message, ".message_inline_image");
};
exports.message_has_attachment = function (message) {
return is_element_in_message_content(message, "a[href^='/user_uploads']");
};
exports.add_old_messages = function (messages, msg_list) {
return add_messages(messages, msg_list, {messages_are_new: false});
};
exports.add_new_messages = function (messages, msg_list) {
if (!msg_list.data.fetch_status.has_found_newest()) {
// We don't render newly received messages for the message list,
// if we haven't found the latest messages to be displayed in the
// narrow. Otherwise the new message would be rendered just after
// the previously fetched messages when that's inaccurate.
msg_list.data.fetch_status.update_expected_max_message_id(messages);
return undefined;
}
return add_messages(messages, msg_list, {messages_are_new: true});
};
exports.get_messages_in_topic = function (stream_id, topic) {
return message_list.all
.all_messages()
.filter(
(x) =>
x.type === "stream" &&
x.stream_id === stream_id &&
x.topic.toLowerCase() === topic.toLowerCase(),
);
};
exports.get_max_message_id_in_stream = function (stream_id) {
let max_message_id = 0;
for (const msg of message_list.all.all_messages()) {
if (msg.type === "stream" && msg.stream_id === stream_id && msg.id > max_message_id) {
max_message_id = msg.id;
}
}
return max_message_id;
};
exports.get_topics_for_message_ids = function (message_ids) {
const topics = new Map(); // key = stream_id:topic
for (const msg_id of message_ids) {
// message_store still has data on deleted messages when this runs.
const message = message_store.get(msg_id);
if (message === undefined) {
// We may not have the deleted message cached locally in
// message_store; if so, we can just skip processing it.
continue;
}
if (message.type === "stream") {
// Create unique keys for stream_id and topic.
const topic_key = message.stream_id + ":" + message.topic;
topics.set(topic_key, [message.stream_id, message.topic]);
}
}
return topics;
};
window.message_util = exports;