mirror of https://github.com/zulip/zulip.git
630 lines
23 KiB
JavaScript
630 lines
23 KiB
JavaScript
var message_store = (function () {
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var exports = {};
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var stored_messages = {};
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var load_more_enabled = true;
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// If the browser hasn't scrolled away from the top of the page
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// since the last time that we ran load_more_messages(), we do
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// not load_more_messages().
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exports.recent_private_messages = [];
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exports.get = function get(message_id) {
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return stored_messages[message_id];
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};
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exports.get_private_message_recipient = function (message, attr, fallback_attr) {
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var recipient, i;
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var other_recipients = _.filter(message.display_recipient,
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function (element) {
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return !util.is_current_user(element.email);
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});
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if (other_recipients.length === 0) {
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// private message with oneself
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return message.display_recipient[0][attr];
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}
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recipient = other_recipients[0][attr];
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if (recipient === undefined && fallback_attr !== undefined) {
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recipient = other_recipients[0][fallback_attr];
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}
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for (i = 1; i < other_recipients.length; i++) {
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var attr_value = other_recipients[i][attr];
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if (attr_value === undefined && fallback_attr !== undefined) {
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attr_value = other_recipients[i][fallback_attr];
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}
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recipient += ', ' + attr_value;
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}
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return recipient;
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};
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exports.process_message_for_recent_private_messages = function process_message_for_recent_private_messages(message, remove_message) {
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var current_timestamp = 0;
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// If this conversation is already tracked, we'll replace with new timestamp,
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// so remove it from the current list.
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exports.recent_private_messages = _.filter(exports.recent_private_messages, function (recent_pm) {
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return recent_pm.reply_to !== message.reply_to;
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});
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var new_conversation = {reply_to: message.reply_to,
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display_reply_to: message.display_reply_to,
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timestamp: Math.max(message.timestamp, current_timestamp)};
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exports.recent_private_messages.push(new_conversation);
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exports.recent_private_messages.sort(function (a, b) {
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return b.timestamp - a.timestamp;
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});
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};
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function set_topic_edit_properties(message) {
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message.always_visible_topic_edit = false;
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message.on_hover_topic_edit = false;
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if (!page_params.realm_allow_message_editing) {
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return;
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}
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// Messages with no topics should always have an edit icon visible
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// to encourage updating them. Admins can also edit any topic.
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if (message.subject === compose.empty_topic_placeholder()) {
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message.always_visible_topic_edit = true;
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} else if (page_params.is_admin) {
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message.on_hover_topic_edit = true;
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}
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}
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function add_message_metadata(message) {
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var cached_msg = stored_messages[message.id];
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if (cached_msg !== undefined) {
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// Copy the match subject and content over if they exist on
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// the new message
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if (message.match_subject !== undefined) {
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cached_msg.match_subject = message.match_subject;
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cached_msg.match_content = message.match_content;
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}
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return cached_msg;
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}
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var involved_people;
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message.sent_by_me = util.is_current_user(message.sender_email);
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message.flags = message.flags || [];
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message.historical = (message.flags !== undefined &&
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message.flags.indexOf('historical') !== -1);
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message.starred = message.flags.indexOf("starred") !== -1;
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message.mentioned = message.flags.indexOf("mentioned") !== -1 ||
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message.flags.indexOf("wildcard_mentioned") !== -1;
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message.mentioned_me_directly = message.flags.indexOf("mentioned") !== -1;
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message.collapsed = message.flags.indexOf("collapsed") !== -1;
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message.alerted = message.flags.indexOf("has_alert_word") !== -1;
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message.is_me_message = message.flags.indexOf("is_me_message") !== -1;
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switch (message.type) {
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case 'stream':
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message.is_stream = true;
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message.stream = message.display_recipient;
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composebox_typeahead.add_topic(message.stream, message.subject);
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message.reply_to = message.sender_email;
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stream_data.process_message_for_recent_topics(message);
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involved_people = [{'full_name': message.sender_full_name,
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'email': message.sender_email}];
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set_topic_edit_properties(message);
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break;
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case 'private':
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message.is_private = true;
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message.reply_to = util.normalize_recipients(
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exports.get_private_message_recipient(message, 'email'));
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message.display_reply_to = exports.get_private_message_recipient(message, 'full_name', 'email');
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exports.process_message_for_recent_private_messages(message);
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involved_people = message.display_recipient;
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break;
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}
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// Add new people involved in this message to the people list
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_.each(involved_people, function (person) {
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// Do the hasOwnProperty() call via the prototype to avoid problems
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// with keys like "hasOwnProperty"
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if (! people.get_by_email(person.email)) {
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people.add(person);
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}
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if (people.get_by_email(person.email).full_name !== person.full_name) {
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people.reify(person);
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}
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if (message.type === 'private' && message.sent_by_me) {
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// Track the number of PMs we've sent to this person to improve autocomplete
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people.get_by_email(person.email).pm_recipient_count += 1;
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}
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});
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alert_words.process_message(message);
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stored_messages[message.id] = message;
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return message;
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}
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exports.add_messages = function add_messages(messages, msg_list, opts) {
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if (!messages) {
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return;
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}
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opts = _.extend({messages_are_new: false, delay_render: false}, opts);
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loading.destroy_indicator($('#page_loading_indicator'));
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$('#first_run_message').remove();
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msg_list.add_messages(messages, opts);
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if (msg_list === home_msg_list && opts.messages_are_new) {
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_.each(messages, function (message) {
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if (message.local_id === undefined) {
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compose.report_as_received(message);
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}
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});
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}
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};
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function maybe_add_narrowed_messages(messages, msg_list, messages_are_new) {
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var ids = [];
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_.each(messages, function (elem) {
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ids.push(elem.id);
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});
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channel.post({
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url: '/json/messages_in_narrow',
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idempotent: true,
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data: {msg_ids: JSON.stringify(ids),
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narrow: JSON.stringify(narrow.public_operators())},
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timeout: 5000,
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success: function (data) {
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if (msg_list !== current_msg_list) {
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// We unnarrowed in the mean time
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return;
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}
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var new_messages = [];
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var elsewhere_messages = [];
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_.each(messages, function (elem) {
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if (data.messages.hasOwnProperty(elem.id)) {
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elem.match_subject = data.messages[elem.id].match_subject;
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elem.match_content = data.messages[elem.id].match_content;
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new_messages.push(elem);
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} else {
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elsewhere_messages.push(elem);
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}
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});
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new_messages = _.map(new_messages, add_message_metadata);
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exports.add_messages(new_messages, msg_list, {messages_are_new: messages_are_new});
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unread.process_visible();
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notifications.possibly_notify_new_messages_outside_viewport(new_messages);
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notifications.notify_messages_outside_current_search(elsewhere_messages);
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},
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error: function (xhr) {
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// We might want to be more clever here
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setTimeout(function () {
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if (msg_list === current_msg_list) {
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// Don't actually try again if we unnarrowed
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// while waiting
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maybe_add_narrowed_messages(messages, msg_list, messages_are_new);
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}
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}, 5000);
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}});
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}
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exports.update_messages = function update_messages(events) {
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var msgs_to_rerender = [];
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var topic_edited = false;
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var changed_narrow = false;
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_.each(events, function (event) {
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var msg = stored_messages[event.message_id];
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if (msg === undefined) {
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return;
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}
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msgs_to_rerender.push(msg);
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msg.alerted = event.flags.indexOf("has_alert_word") !== -1;
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msg.mentioned = event.flags.indexOf("mentioned") !== -1 ||
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event.flags.indexOf("wildcard_mentioned") !== -1;
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condense.un_cache_message_content_height(msg.id);
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if (event.rendered_content !== undefined) {
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msg.content = event.rendered_content;
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}
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var row = current_msg_list.get_row(event.message_id);
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if (row.length > 0) {
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message_edit.end(row);
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}
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if (event.subject !== undefined) {
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// A topic edit may affect multiple messages, listed in
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// event.message_ids. event.message_id is still the first message
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// where the user initiated the edit.
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topic_edited = true;
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var going_forward_change = _.indexOf(['change_later', 'change_all'], event.propagate_mode) >= 0;
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var stream_name = stream_data.get_sub_by_id(event.stream_id).name;
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var compose_stream_name = compose.stream_name();
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if (going_forward_change && stream_name && compose_stream_name) {
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if (stream_name.toLowerCase() === compose_stream_name.toLowerCase()) {
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if (event.orig_subject === compose.subject()) {
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compose.subject(event.subject);
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}
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}
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}
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if (going_forward_change) {
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var current_id = current_msg_list.selected_id();
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var selection_changed_topic = _.indexOf(event.message_ids, current_id) >= 0;
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if (selection_changed_topic) {
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var current_filter = narrow.filter();
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if (current_filter && stream_name) {
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if (current_filter.has_topic(stream_name, event.orig_subject)) {
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var new_filter = current_filter.filter_with_new_topic(event.subject);
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var operators = new_filter.operators();
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var opts = {
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trigger: 'topic change',
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then_select_id: current_id
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};
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narrow.activate(operators, opts);
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changed_narrow = true;
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}
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}
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}
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}
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_.each(event.message_ids, function (id) {
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var msg = message_store.get(id);
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if (msg === undefined) {
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return;
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}
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// Remove the recent topics entry for the old topics;
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// must be called before we update msg.subject
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stream_data.process_message_for_recent_topics(msg, true);
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// Update the unread counts; again, this must be called
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// before we update msg.subject
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unread.update_unread_topics(msg, event);
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msg.subject = event.subject;
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msg.subject_links = event.subject_links;
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set_topic_edit_properties(msg);
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// Add the recent topics entry for the new topics; must
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// be called after we update msg.subject
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stream_data.process_message_for_recent_topics(msg);
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});
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}
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msg.last_edit_timestamp = event.edit_timestamp;
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delete msg.last_edit_timestr;
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notifications.received_messages([msg]);
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alert_words.process_message(msg);
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});
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// If a topic was edited, we re-render the whole view to get any propagated edits
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// to be updated
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if (topic_edited) {
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if (!changed_narrow) {
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home_msg_list.rerender();
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if (current_msg_list === message_list.narrowed) {
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message_list.narrowed.rerender();
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}
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}
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} else {
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home_msg_list.view.rerender_messages(msgs_to_rerender);
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if (current_msg_list === message_list.narrowed) {
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message_list.narrowed.view.rerender_messages(msgs_to_rerender);
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}
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}
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unread.update_unread_counts();
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stream_list.update_streams_sidebar();
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stream_list.update_private_messages();
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};
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exports.insert_new_messages = function insert_new_messages(messages) {
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messages = _.map(messages, add_message_metadata);
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// You must add add messages to home_msg_list BEFORE
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// calling unread.process_loaded_messages.
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exports.add_messages(messages, home_msg_list, {messages_are_new: true});
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exports.add_messages(messages, message_list.all, {messages_are_new: true});
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if (narrow.active()) {
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if (narrow.filter().can_apply_locally()) {
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exports.add_messages(messages, message_list.narrowed, {messages_are_new: true});
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notifications.possibly_notify_new_messages_outside_viewport(messages);
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} else {
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// if we cannot apply locally, we have to wait for this callback to happen to notify
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maybe_add_narrowed_messages(messages, message_list.narrowed, true);
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}
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} else {
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notifications.possibly_notify_new_messages_outside_viewport(messages);
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}
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process_loaded_for_unread(messages);
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if (narrow.narrowed_by_reply()) {
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// If you send a message when narrowed to a recipient, move the
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// pointer to it.
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var i;
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var selected_id = current_msg_list.selected_id();
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// Iterate backwards to find the last message sent_by_me, stopping at
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// the pointer position.
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for (i = messages.length-1; i>=0; i--) {
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var id = messages[i].id;
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if (id <= selected_id) {
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break;
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}
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if (messages[i].sent_by_me && current_msg_list.get(id) !== undefined) {
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// If this is a reply we just sent, advance the pointer to it.
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current_msg_list.select_id(messages[i].id, {then_scroll: true,
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from_scroll: true});
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break;
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}
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}
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}
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unread.process_visible();
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notifications.received_messages(messages);
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stream_list.update_streams_sidebar();
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stream_list.update_private_messages();
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};
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function process_result(messages, opts) {
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$('#get_old_messages_error').hide();
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if ((messages.length === 0) && (current_msg_list === message_list.narrowed) &&
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message_list.narrowed.empty()) {
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// Even after trying to load more messages, we have no
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// messages to display in this narrow.
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narrow.show_empty_narrow_message();
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}
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messages = _.map(messages, add_message_metadata);
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// If we're loading more messages into the home view, save them to
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// the message_list.all as well, as the home_msg_list is reconstructed
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// from message_list.all.
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if (opts.msg_list === home_msg_list) {
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process_loaded_for_unread(messages);
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exports.add_messages(messages, message_list.all, {messages_are_new: false});
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}
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if (messages.length !== 0 && !opts.cont_will_add_messages) {
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exports.add_messages(messages, opts.msg_list, {messages_are_new: false});
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}
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stream_list.update_streams_sidebar();
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stream_list.update_private_messages();
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if (opts.cont !== undefined) {
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opts.cont(messages);
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}
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}
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function get_old_messages_success(data, opts) {
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if (tutorial.is_running()) {
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// Don't actually process the messages until the tutorial is
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// finished, but do disable the loading indicator so it isn't
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// distracting in the background
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loading.destroy_indicator($('#page_loading_indicator'));
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tutorial.defer(function () { get_old_messages_success(data, opts); });
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return;
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}
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if (opts.msg_list.narrowed && opts.msg_list !== current_msg_list) {
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// We unnarrowed before receiving new messages so
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// don't bother processing the newly arrived messages.
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return;
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}
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if (! data) {
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// The server occationally returns no data during a
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// restart. Ignore those responses and try again
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setTimeout(function () {
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exports.load_old_messages(opts);
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}, 0);
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return;
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}
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process_result(data.messages, opts);
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resize.resize_bottom_whitespace();
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}
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exports.load_old_messages = function load_old_messages(opts) {
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opts = _.extend({cont_will_add_messages: false}, opts);
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var data = {anchor: opts.anchor,
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num_before: opts.num_before,
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num_after: opts.num_after};
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if (opts.msg_list.narrowed && narrow.active()) {
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var operators = narrow.public_operators();
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if (page_params.narrow !== undefined) {
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operators = operators.concat(page_params.narrow);
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}
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data.narrow = JSON.stringify(operators);
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}
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if (opts.msg_list === home_msg_list && page_params.narrow_stream !== undefined) {
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data.narrow = JSON.stringify(page_params.narrow);
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}
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if (opts.use_first_unread_anchor) {
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data.use_first_unread_anchor = true;
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}
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channel.get({
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url: '/json/messages',
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data: data,
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idempotent: true,
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success: function (data) {
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get_old_messages_success(data, opts);
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},
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error: function (xhr, error_type, exn) {
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if (opts.msg_list.narrowed && opts.msg_list !== current_msg_list) {
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// We unnarrowed before getting an error so don't
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// bother trying again or doing further processing.
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return;
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}
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if (xhr.status === 400) {
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// Bad request: We probably specified a narrow operator
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// for a nonexistent stream or something. We shouldn't
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// retry or display a connection error.
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//
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// FIXME: Warn the user when this has happened?
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process_result([], opts);
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return;
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}
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// We might want to be more clever here
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$('#get_old_messages_error').show();
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setTimeout(function () {
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exports.load_old_messages(opts);
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}, 5000);
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}
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});
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};
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exports.reset_load_more_status = function reset_load_more_status() {
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load_more_enabled = true;
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ui.have_scrolled_away_from_top = true;
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ui.hide_loading_more_messages_indicator();
|
|
};
|
|
|
|
exports.load_more_messages = function load_more_messages(msg_list) {
|
|
var batch_size = 100;
|
|
var oldest_message_id;
|
|
if (!load_more_enabled) {
|
|
return;
|
|
}
|
|
ui.show_loading_more_messages_indicator();
|
|
load_more_enabled = false;
|
|
if (msg_list.first() === undefined) {
|
|
oldest_message_id = page_params.initial_pointer;
|
|
} else {
|
|
oldest_message_id = msg_list.first().id;
|
|
}
|
|
exports.load_old_messages({
|
|
anchor: oldest_message_id.toFixed(),
|
|
num_before: batch_size,
|
|
num_after: 0,
|
|
msg_list: msg_list,
|
|
cont: function (messages) {
|
|
ui.hide_loading_more_messages_indicator();
|
|
if (messages.length >= batch_size) {
|
|
load_more_enabled = true;
|
|
}
|
|
}
|
|
});
|
|
};
|
|
|
|
exports.clear = function clear() {
|
|
this.stored_messages = {};
|
|
};
|
|
|
|
util.execute_early(function () {
|
|
// get the initial message list
|
|
function load_more(messages) {
|
|
|
|
// If we received the initially selected message, select it on the client side,
|
|
// but not if the user has already selected another one during load.
|
|
//
|
|
// We fall back to the closest selected id, as the user may have removed
|
|
// a stream from the home before already
|
|
if (home_msg_list.selected_id() === -1 && !home_msg_list.empty()) {
|
|
home_msg_list.select_id(page_params.initial_pointer,
|
|
{then_scroll: true, use_closest: true,
|
|
target_scroll_offset: page_params.initial_offset});
|
|
}
|
|
|
|
// catch the user up
|
|
if (messages.length !== 0) {
|
|
var latest_id = messages[messages.length-1].id;
|
|
if (latest_id < page_params.max_message_id) {
|
|
exports.load_old_messages({
|
|
anchor: latest_id.toFixed(),
|
|
num_before: 0,
|
|
num_after: 400,
|
|
msg_list: home_msg_list,
|
|
cont: load_more
|
|
});
|
|
return;
|
|
}
|
|
}
|
|
|
|
server_events.home_view_loaded();
|
|
|
|
// backfill more messages after the user is idle
|
|
var backfill_batch_size = 1000;
|
|
$(document).idle({'idle': 1000*10,
|
|
'onIdle': function () {
|
|
var first_id = message_list.all.first().id;
|
|
exports.load_old_messages({
|
|
anchor: first_id,
|
|
num_before: backfill_batch_size,
|
|
num_after: 0,
|
|
msg_list: home_msg_list
|
|
});
|
|
}});
|
|
}
|
|
|
|
if (page_params.have_initial_messages) {
|
|
exports.load_old_messages({
|
|
anchor: page_params.initial_pointer,
|
|
num_before: 200,
|
|
num_after: 200,
|
|
msg_list: home_msg_list,
|
|
cont: load_more
|
|
});
|
|
} else {
|
|
server_events.home_view_loaded();
|
|
}
|
|
|
|
$(document).on('message_id_changed', function (event) {
|
|
var old_id = event.old_id, new_id = event.new_id;
|
|
if (pointer.furthest_read === old_id) {
|
|
pointer.furthest_read = new_id;
|
|
}
|
|
if (stored_messages[old_id]) {
|
|
stored_messages[new_id] = stored_messages[old_id];
|
|
delete stored_messages[old_id];
|
|
}
|
|
|
|
// This handler cannot be in the MessageList constructor, which is the logical place
|
|
// If it's there, the event handler creates a closure with a reference to the message
|
|
// list itself. When narrowing, the old narrow message list is discarded and a new one
|
|
// created, but due to the closure, the old list is not garbage collected. This also leads
|
|
// to the old list receiving the change id events, and throwing errors as it does not
|
|
// have the messages that you would expect in its internal data structures.
|
|
_.each([message_list.all, home_msg_list, message_list.narrowed], function (msg_list) {
|
|
if (msg_list !== undefined) {
|
|
msg_list.change_message_id(old_id, new_id);
|
|
|
|
if (msg_list.view !== undefined) {
|
|
msg_list.view.change_message_id(old_id, new_id);
|
|
}
|
|
}
|
|
});
|
|
});
|
|
});
|
|
|
|
return exports;
|
|
|
|
}());
|
|
if (typeof module !== 'undefined') {
|
|
module.exports = message_store;
|
|
}
|