zulip/static/js/unread.js

612 lines
17 KiB
JavaScript

const util = require("./util");
const FoldDict = require("./fold_dict").FoldDict;
// The unread module tracks the message IDs and locations of the
// user's unread messages. The tracking is initialized with
// server-provided data of the total set of unread messages in the
// user's history via page_params.unread_msgs (well, it cuts off at
// MAX_UNREAD_MESSAGES unreads for performance reasons). As a result,
// it can contain many thousands of messages that we don't have full
// data for in `message_store`, so we cannot in general look these
// messages up there.
// See https://zulip.readthedocs.io/en/latest/subsystems/pointer.html
// for more details on how this system is designed.
exports.messages_read_in_narrow = false;
exports.set_messages_read_in_narrow = function (value) {
exports.messages_read_in_narrow = value;
};
const unread_messages = new Set();
function make_bucketer(options) {
const self = {};
const key_to_bucket = new options.KeyDict();
const reverse_lookup = new Map();
self.clear = function () {
key_to_bucket.clear();
reverse_lookup.clear();
};
self.add = function (opts) {
const bucket_key = opts.bucket_key;
const item_id = opts.item_id;
const add_callback = opts.add_callback;
let bucket = key_to_bucket.get(bucket_key);
if (!bucket) {
bucket = options.make_bucket();
key_to_bucket.set(bucket_key, bucket);
}
if (add_callback) {
add_callback(bucket, item_id);
} else {
bucket.add(item_id);
}
reverse_lookup.set(item_id, bucket);
};
self.delete = function (item_id) {
const bucket = reverse_lookup.get(item_id);
if (bucket) {
bucket.delete(item_id);
reverse_lookup.delete(item_id);
}
};
self.get_bucket = function (bucket_key) {
return key_to_bucket.get(bucket_key);
};
self.keys = function () {
return key_to_bucket.keys();
};
self.values = function () {
return key_to_bucket.values();
};
self[Symbol.iterator] = function () {
return key_to_bucket[Symbol.iterator]();
};
return self;
}
exports.unread_pm_counter = (function () {
const self = {};
const bucketer = make_bucketer({
KeyDict: Map,
make_bucket: () => new Set(),
});
self.clear = function () {
bucketer.clear();
};
self.set_pms = function (pms) {
for (const obj of pms) {
const user_ids_string = obj.sender_id.toString();
self.set_message_ids(user_ids_string, obj.unread_message_ids);
}
};
self.set_huddles = function (huddles) {
for (const obj of huddles) {
const user_ids_string = people.pm_lookup_key(obj.user_ids_string);
self.set_message_ids(user_ids_string, obj.unread_message_ids);
}
};
self.set_message_ids = function (user_ids_string, unread_message_ids) {
for (const msg_id of unread_message_ids) {
bucketer.add({
bucket_key: user_ids_string,
item_id: msg_id,
});
}
};
self.add = function (message) {
const user_ids_string = people.pm_reply_user_string(message);
if (user_ids_string) {
bucketer.add({
bucket_key: user_ids_string,
item_id: message.id,
});
}
};
self.delete = function (message_id) {
bucketer.delete(message_id);
};
self.get_counts = function () {
const pm_dict = new Map(); // Hash by user_ids_string -> count
let total_count = 0;
for (const [user_ids_string, id_set] of bucketer) {
const count = id_set.size;
pm_dict.set(user_ids_string, count);
total_count += count;
}
return {
total_count,
pm_dict,
};
};
self.num_unread = function (user_ids_string) {
if (!user_ids_string) {
return 0;
}
const bucket = bucketer.get_bucket(user_ids_string);
if (!bucket) {
return 0;
}
return bucket.size;
};
self.get_msg_ids = function () {
const ids = [];
for (const id_set of bucketer.values()) {
for (const id of id_set) {
ids.push(id);
}
}
return util.sorted_ids(ids);
};
self.get_msg_ids_for_person = function (user_ids_string) {
if (!user_ids_string) {
return [];
}
const bucket = bucketer.get_bucket(user_ids_string);
if (!bucket) {
return [];
}
const ids = Array.from(bucket);
return util.sorted_ids(ids);
};
return self;
})();
function make_per_stream_bucketer() {
return make_bucketer({
KeyDict: FoldDict, // bucket keys are topics
make_bucket: () => new Set(),
});
}
exports.unread_topic_counter = (function () {
const self = {};
const bucketer = make_bucketer({
KeyDict: Map, // bucket keys are stream_ids
make_bucket: make_per_stream_bucketer,
});
self.clear = function () {
bucketer.clear();
};
self.set_streams = function (objs) {
for (const obj of objs) {
const stream_id = obj.stream_id;
const topic = obj.topic;
const unread_message_ids = obj.unread_message_ids;
for (const msg_id of unread_message_ids) {
self.add(stream_id, topic, msg_id);
}
}
};
self.add = function (stream_id, topic, msg_id) {
bucketer.add({
bucket_key: stream_id,
item_id: msg_id,
add_callback(per_stream_bucketer) {
per_stream_bucketer.add({
bucket_key: topic,
item_id: msg_id,
});
},
});
};
self.delete = function (msg_id) {
bucketer.delete(msg_id);
};
self.get_counts = function () {
const res = {};
res.stream_unread_messages = 0;
res.stream_count = new Map(); // hash by stream_id -> count
for (const [stream_id, per_stream_bucketer] of bucketer) {
// We track unread counts for streams that may be currently
// unsubscribed. Since users may re-subscribe, we don't
// completely throw away the data. But we do ignore it here,
// so that callers have a view of the **current** world.
const sub = stream_data.get_sub_by_id(stream_id);
if (!sub || !stream_data.is_subscribed(sub.name)) {
continue;
}
let stream_count = 0;
for (const [topic, msgs] of per_stream_bucketer) {
const topic_count = msgs.size;
if (!muting.is_topic_muted(stream_id, topic)) {
stream_count += topic_count;
}
}
res.stream_count.set(stream_id, stream_count);
if (!stream_data.is_muted(stream_id)) {
res.stream_unread_messages += stream_count;
}
}
return res;
};
self.get_missing_topics = function (opts) {
const stream_id = opts.stream_id;
const topic_dict = opts.topic_dict;
const per_stream_bucketer = bucketer.get_bucket(stream_id);
if (!per_stream_bucketer) {
return [];
}
let topic_names = Array.from(per_stream_bucketer.keys());
topic_names = topic_names.filter((topic_name) => !topic_dict.has(topic_name));
const result = topic_names.map((topic_name) => {
const msgs = per_stream_bucketer.get_bucket(topic_name);
return {
pretty_name: topic_name,
message_id: Math.max(...Array.from(msgs)),
};
});
return result;
};
self.get_stream_count = function (stream_id) {
let stream_count = 0;
const per_stream_bucketer = bucketer.get_bucket(stream_id);
if (!per_stream_bucketer) {
return 0;
}
const sub = stream_data.get_sub_by_id(stream_id);
for (const [topic, msgs] of per_stream_bucketer) {
if (sub && !muting.is_topic_muted(stream_id, topic)) {
stream_count += msgs.size;
}
}
return stream_count;
};
self.get = function (stream_id, topic) {
const per_stream_bucketer = bucketer.get_bucket(stream_id);
if (!per_stream_bucketer) {
return 0;
}
const topic_bucket = per_stream_bucketer.get_bucket(topic);
if (!topic_bucket) {
return 0;
}
return topic_bucket.size;
};
self.get_msg_ids_for_stream = function (stream_id) {
const per_stream_bucketer = bucketer.get_bucket(stream_id);
if (!per_stream_bucketer) {
return [];
}
const ids = [];
const sub = stream_data.get_sub_by_id(stream_id);
for (const [topic, id_set] of per_stream_bucketer) {
if (sub && !muting.is_topic_muted(stream_id, topic)) {
for (const id of id_set) {
ids.push(id);
}
}
}
return util.sorted_ids(ids);
};
self.get_msg_ids_for_topic = function (stream_id, topic) {
const per_stream_bucketer = bucketer.get_bucket(stream_id);
if (!per_stream_bucketer) {
return [];
}
const topic_bucket = per_stream_bucketer.get_bucket(topic);
if (!topic_bucket) {
return [];
}
const ids = Array.from(topic_bucket);
return util.sorted_ids(ids);
};
self.topic_has_any_unread = function (stream_id, topic) {
const per_stream_bucketer = bucketer.get_bucket(stream_id);
if (!per_stream_bucketer) {
return false;
}
const id_set = per_stream_bucketer.get_bucket(topic);
if (!id_set) {
return false;
}
return id_set.size !== 0;
};
return self;
})();
exports.unread_mentions_counter = new Set();
exports.message_unread = function (message) {
if (message === undefined) {
return false;
}
return message.unread;
};
exports.get_unread_message_ids = function (message_ids) {
return message_ids.filter((message_id) => unread_messages.has(message_id));
};
exports.get_unread_messages = function (messages) {
return messages.filter((message) => unread_messages.has(message.id));
};
exports.update_unread_topics = function (msg, event) {
const new_topic = util.get_edit_event_topic(event);
const {new_stream_id} = event;
if (new_topic === undefined && new_stream_id === undefined) {
return;
}
if (!unread_messages.has(msg.id)) {
return;
}
exports.unread_topic_counter.delete(msg.id);
exports.unread_topic_counter.add(
new_stream_id || msg.stream_id,
new_topic || msg.topic,
msg.id,
);
};
exports.process_loaded_messages = function (messages) {
for (const message of messages) {
if (!message.unread) {
continue;
}
unread_messages.add(message.id);
if (message.type === "private") {
exports.unread_pm_counter.add(message);
}
if (message.type === "stream") {
exports.unread_topic_counter.add(message.stream_id, message.topic, message.id);
}
exports.update_message_for_mention(message);
}
};
exports.update_message_for_mention = function (message) {
if (!message.unread) {
exports.unread_mentions_counter.delete(message.id);
return;
}
const is_unmuted_mention =
message.type === "stream" &&
message.mentioned &&
!muting.is_topic_muted(message.stream_id, message.topic);
if (is_unmuted_mention || message.mentioned_me_directly) {
exports.unread_mentions_counter.add(message.id);
} else {
exports.unread_mentions_counter.delete(message.id);
}
};
exports.mark_as_read = function (message_id) {
// We don't need to check anything about the message, since all
// the following methods are cheap and work fine even if message_id
// was never set to unread.
exports.unread_pm_counter.delete(message_id);
exports.unread_topic_counter.delete(message_id);
exports.unread_mentions_counter.delete(message_id);
unread_messages.delete(message_id);
const message = message_store.get(message_id);
if (message) {
message.unread = false;
}
};
exports.declare_bankruptcy = function () {
exports.unread_pm_counter.clear();
exports.unread_topic_counter.clear();
exports.unread_mentions_counter.clear();
unread_messages.clear();
};
exports.get_counts = function () {
const res = {};
// Return a data structure with various counts. This function should be
// pretty cheap, even if you don't care about all the counts, and you
// should strive to keep it free of side effects on globals or DOM.
res.private_message_count = 0;
res.mentioned_message_count = exports.unread_mentions_counter.size;
// This sets stream_count, topic_count, and home_unread_messages
const topic_res = exports.unread_topic_counter.get_counts();
res.home_unread_messages = topic_res.stream_unread_messages;
res.stream_count = topic_res.stream_count;
const pm_res = exports.unread_pm_counter.get_counts();
res.pm_count = pm_res.pm_dict;
res.private_message_count = pm_res.total_count;
res.home_unread_messages += pm_res.total_count;
return res;
};
// Saves us from calling to get_counts() when we can avoid it.
exports.calculate_notifiable_count = function (res) {
let new_message_count = 0;
const only_show_notifiable =
page_params.desktop_icon_count_display ===
settings_notifications.desktop_icon_count_display_values.notifiable.code;
const no_notifications =
page_params.desktop_icon_count_display ===
settings_notifications.desktop_icon_count_display_values.none.code;
if (only_show_notifiable) {
// DESKTOP_ICON_COUNT_DISPLAY_NOTIFIABLE
new_message_count = res.mentioned_message_count + res.private_message_count;
} else if (no_notifications) {
// DESKTOP_ICON_COUNT_DISPLAY_NONE
new_message_count = 0;
} else {
// DESKTOP_ICON_COUNT_DISPLAY_MESSAGES
new_message_count = res.home_unread_messages;
}
return new_message_count;
};
exports.get_notifiable_count = function () {
const res = exports.get_counts();
return exports.calculate_notifiable_count(res);
};
exports.num_unread_for_stream = function (stream_id) {
return exports.unread_topic_counter.get_stream_count(stream_id);
};
exports.num_unread_for_topic = function (stream_id, topic_name) {
return exports.unread_topic_counter.get(stream_id, topic_name);
};
exports.topic_has_any_unread = function (stream_id, topic) {
return exports.unread_topic_counter.topic_has_any_unread(stream_id, topic);
};
exports.num_unread_for_person = function (user_ids_string) {
return exports.unread_pm_counter.num_unread(user_ids_string);
};
exports.get_msg_ids_for_stream = function (stream_id) {
return exports.unread_topic_counter.get_msg_ids_for_stream(stream_id);
};
exports.get_msg_ids_for_topic = function (stream_id, topic_name) {
return exports.unread_topic_counter.get_msg_ids_for_topic(stream_id, topic_name);
};
exports.get_msg_ids_for_person = function (user_ids_string) {
return exports.unread_pm_counter.get_msg_ids_for_person(user_ids_string);
};
exports.get_msg_ids_for_private = function () {
return exports.unread_pm_counter.get_msg_ids();
};
exports.get_msg_ids_for_mentions = function () {
const ids = Array.from(exports.unread_mentions_counter);
return util.sorted_ids(ids);
};
exports.get_all_msg_ids = function () {
const ids = Array.from(unread_messages);
return util.sorted_ids(ids);
};
exports.get_missing_topics = function (opts) {
return exports.unread_topic_counter.get_missing_topics(opts);
};
exports.get_msg_ids_for_starred = function () {
// This is here for API consistency sake--we never
// have unread starred messages. (Some day we may ironically
// want to make starring the same as mark-as-unread, but
// for now starring === reading.)
return [];
};
exports.initialize = function () {
const unread_msgs = page_params.unread_msgs;
exports.unread_pm_counter.set_huddles(unread_msgs.huddles);
exports.unread_pm_counter.set_pms(unread_msgs.pms);
exports.unread_topic_counter.set_streams(unread_msgs.streams);
for (const message_id of unread_msgs.mentions) {
exports.unread_mentions_counter.add(message_id);
}
for (const obj of unread_msgs.huddles) {
for (const message_id of obj.unread_message_ids) {
unread_messages.add(message_id);
}
}
for (const obj of unread_msgs.pms) {
for (const message_id of obj.unread_message_ids) {
unread_messages.add(message_id);
}
}
for (const obj of unread_msgs.streams) {
for (const message_id of obj.unread_message_ids) {
unread_messages.add(message_id);
}
}
for (const message_id of unread_msgs.mentions) {
unread_messages.add(message_id);
}
};
window.unread = exports;