zulip/static/js/unread.js

652 lines
17 KiB
JavaScript

var Dict = require('./dict').Dict;
// See https://zulip.readthedocs.io/en/latest/subsystems/pointer.html for notes on
// how this system is designed.
var unread = (function () {
var exports = {};
exports.suppress_unread_counts = true;
exports.set_suppress_unread_counts = function (value) {
exports.suppress_unread_counts = value;
};
exports.messages_read_in_narrow = false;
exports.set_messages_read_in_narrow = function (value) {
exports.messages_read_in_narrow = value;
};
function make_id_set() {
/* This is just a basic set class where
elements should be numeric ids.
*/
var self = {};
var ids = new Dict();
self.clear = function () {
ids.clear();
};
self.add = function (id) {
ids.set(id, true);
};
self.has = function (id) {
return ids.has(id);
};
self.add_many = function (id_list) {
_.each(id_list, function (id) {
ids.set(id, true);
});
};
self.del = function (id) {
ids.del(id);
};
self.count = function () {
return ids.num_items();
};
self.members = function () {
return ids.keys();
};
self.max = function () {
return _.max(ids.keys());
};
self.is_empty = function () {
return ids.is_empty();
};
return self;
}
var unread_messages = make_id_set();
function make_bucketer(options) {
var self = {};
var key_to_bucket = new Dict({fold_case: options.fold_case});
var reverse_lookup = new Dict();
self.clear = function () {
key_to_bucket.clear();
reverse_lookup.clear();
};
self.add = function (opts) {
var bucket_key = opts.bucket_key;
var item_id = opts.item_id;
var add_callback = opts.add_callback;
var 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.del = function (item_id) {
var bucket = reverse_lookup.get(item_id);
if (bucket) {
bucket.del(item_id);
reverse_lookup.del(item_id);
}
};
self.get_bucket = function (bucket_key) {
return key_to_bucket.get(bucket_key);
};
self.each = function (callback) {
key_to_bucket.each(callback);
};
self.keys = function () {
return key_to_bucket.keys();
};
return self;
}
exports.unread_pm_counter = (function () {
var self = {};
var bucketer = make_bucketer({
fold_case: false,
make_bucket: make_id_set,
});
self.clear = function () {
bucketer.clear();
};
self.set_pms = function (pms) {
_.each(pms, function (obj) {
var user_ids_string = obj.sender_id.toString();
self.set_message_ids(user_ids_string, obj.unread_message_ids);
});
};
self.set_huddles = function (huddles) {
_.each(huddles, function (obj) {
var 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) {
_.each(unread_message_ids, function (msg_id) {
bucketer.add({
bucket_key: user_ids_string,
item_id: msg_id,
});
});
};
self.add = function (message) {
var 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.del = function (message_id) {
bucketer.del(message_id);
};
self.get_counts = function () {
var pm_dict = new Dict(); // Hash by user_ids_string -> count
var total_count = 0;
bucketer.each(function (id_set, user_ids_string) {
var count = id_set.count();
pm_dict.set(user_ids_string, count);
total_count += count;
});
return {
total_count: total_count,
pm_dict: pm_dict,
};
};
self.num_unread = function (user_ids_string) {
if (!user_ids_string) {
return 0;
}
var bucket = bucketer.get_bucket(user_ids_string);
if (!bucket) {
return 0;
}
return bucket.count();
};
self.get_msg_ids = function () {
var lists = [];
bucketer.each(function (id_set) {
var members = id_set.members();
lists.push(members);
});
var ids = [].concat.apply([], lists);
return util.sorted_ids(ids);
};
self.get_msg_ids_for_person = function (user_ids_string) {
if (!user_ids_string) {
return [];
}
var bucket = bucketer.get_bucket(user_ids_string);
if (!bucket) {
return [];
}
var ids = bucket.members();
return util.sorted_ids(ids);
};
return self;
}());
function make_per_stream_bucketer() {
return make_bucketer({
fold_case: true, // bucket keys are topics
make_bucket: make_id_set,
});
}
exports.unread_topic_counter = (function () {
var self = {};
var bucketer = make_bucketer({
fold_case: false, // bucket keys are stream_ids
make_bucket: make_per_stream_bucketer,
});
self.clear = function () {
bucketer.clear();
};
self.set_streams = function (objs) {
_.each(objs, function (obj) {
var stream_id = obj.stream_id;
var topic = obj.topic;
var unread_message_ids = obj.unread_message_ids;
_.each(unread_message_ids, function (msg_id) {
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: function (per_stream_bucketer) {
per_stream_bucketer.add({
bucket_key: topic,
item_id: msg_id,
});
},
});
};
self.del = function (msg_id) {
bucketer.del(msg_id);
};
function str_dict() {
// Use this when keys are topics
return new Dict({fold_case: true});
}
function num_dict() {
// Use this for stream ids.
return new Dict();
}
self.get_counts = function () {
var res = {};
res.stream_unread_messages = 0;
res.stream_count = num_dict(); // hash by stream_id -> count
res.topic_count = num_dict(); // hash of hashes (stream_id, then topic -> count)
bucketer.each(function (per_stream_bucketer, stream_id) {
// 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.
var sub = stream_data.get_sub_by_id(stream_id);
if (!sub || !stream_data.is_subscribed(sub.name)) {
return;
}
res.topic_count.set(stream_id, str_dict());
var stream_count = 0;
per_stream_bucketer.each(function (msgs, topic) {
var topic_count = msgs.count();
res.topic_count.get(stream_id).set(topic, topic_count);
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) {
var stream_id = opts.stream_id;
var topic_dict = opts.topic_dict;
var per_stream_bucketer = bucketer.get_bucket(stream_id);
if (!per_stream_bucketer) {
return [];
}
var topic_names = per_stream_bucketer.keys();
topic_names = _.reject(topic_names, function (topic_name) {
return topic_dict.has(topic_name);
});
var result = _.map(topic_names, function (topic_name) {
var msgs = per_stream_bucketer.get_bucket(topic_name);
return {
pretty_name: topic_name,
message_id: msgs.max(),
};
});
return result;
};
self.get_stream_count = function (stream_id) {
var stream_count = 0;
var per_stream_bucketer = bucketer.get_bucket(stream_id);
if (!per_stream_bucketer) {
return 0;
}
var sub = stream_data.get_sub_by_id(stream_id);
per_stream_bucketer.each(function (msgs, topic) {
if (sub && !muting.is_topic_muted(stream_id, topic)) {
stream_count += msgs.count();
}
});
return stream_count;
};
self.get = function (stream_id, topic) {
var per_stream_bucketer = bucketer.get_bucket(stream_id);
if (!per_stream_bucketer) {
return 0;
}
var topic_bucket = per_stream_bucketer.get_bucket(topic);
if (!topic_bucket) {
return 0;
}
return topic_bucket.count();
};
self.get_msg_ids_for_stream = function (stream_id) {
var per_stream_bucketer = bucketer.get_bucket(stream_id);
if (!per_stream_bucketer) {
return [];
}
var topic_lists = [];
var sub = stream_data.get_sub_by_id(stream_id);
per_stream_bucketer.each(function (msgs, topic) {
if (sub && !muting.is_topic_muted(stream_id, topic)) {
topic_lists.push(msgs.members());
}
});
var ids = [].concat.apply([], topic_lists);
return util.sorted_ids(ids);
};
self.get_msg_ids_for_topic = function (stream_id, topic) {
var per_stream_bucketer = bucketer.get_bucket(stream_id);
if (!per_stream_bucketer) {
return [];
}
var topic_bucket = per_stream_bucketer.get_bucket(topic);
if (!topic_bucket) {
return [];
}
var ids = topic_bucket.members();
return util.sorted_ids(ids);
};
self.topic_has_any_unread = function (stream_id, topic) {
var per_stream_bucketer = bucketer.get_bucket(stream_id);
if (!per_stream_bucketer) {
return false;
}
var id_set = per_stream_bucketer.get_bucket(topic);
if (!id_set) {
return false;
}
return !id_set.is_empty();
};
return self;
}());
exports.unread_mentions_counter = make_id_set();
exports.message_unread = function (message) {
if (message === undefined) {
return false;
}
return message.unread;
};
exports.get_unread_message_ids = function (message_ids) {
return _.filter(message_ids, unread_messages.has);
};
exports.get_unread_messages = function (messages) {
return _.filter(messages, function (message) {
return unread_messages.has(message.id);
});
};
exports.update_unread_topics = function (msg, event) {
var new_topic = util.get_edit_event_topic(event);
if (new_topic === undefined) {
return;
}
if (!unread_messages.has(msg.id)) {
return;
}
exports.unread_topic_counter.del(
msg.id
);
exports.unread_topic_counter.add(
msg.stream_id,
new_topic,
msg.id
);
};
exports.process_loaded_messages = function (messages) {
_.each(messages, function (message) {
if (!message.unread) {
return;
}
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,
util.get_message_topic(message),
message.id
);
}
if (message.mentioned) {
exports.unread_mentions_counter.add(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.del(message_id);
exports.unread_topic_counter.del(message_id);
exports.unread_mentions_counter.del(message_id);
unread_messages.del(message_id);
var 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 () {
var 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.count();
// This sets stream_count, topic_count, and home_unread_messages
var topic_res = exports.unread_topic_counter.get_counts();
res.home_unread_messages = topic_res.stream_unread_messages;
res.stream_count = topic_res.stream_count;
res.topic_count = topic_res.topic_count;
var 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) {
var new_message_count = 0;
var only_show_notifiable = page_params.desktop_icon_count_display ===
settings_notifications.desktop_icon_count_display_values.notifiable.code;
if (only_show_notifiable) {
// DESKTOP_ICON_COUNT_DISPLAY_NOTIFIABLE
new_message_count = res.mentioned_message_count + res.private_message_count;
} else {
// DESKTOP_ICON_COUNT_DISPLAY_MESSAGES
new_message_count = res.home_unread_messages;
}
return new_message_count;
};
exports.get_notifiable_count = function () {
var 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 () {
var ids = exports.unread_mentions_counter.members();
return util.sorted_ids(ids);
};
exports.get_all_msg_ids = function () {
var ids = unread_messages.members();
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 () {
var 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);
exports.unread_mentions_counter.add_many(unread_msgs.mentions);
_.each(unread_msgs.huddles, function (obj) {
unread_messages.add_many(obj.unread_message_ids);
});
_.each(unread_msgs.pms, function (obj) {
unread_messages.add_many(obj.unread_message_ids);
});
_.each(unread_msgs.streams, function (obj) {
unread_messages.add_many(obj.unread_message_ids);
});
unread_messages.add_many(unread_msgs.mentions);
};
return exports;
}());
if (typeof module !== 'undefined') {
module.exports = unread;
}
window.unread = unread;