mirror of https://github.com/zulip/zulip.git
111 lines
2.8 KiB
JavaScript
111 lines
2.8 KiB
JavaScript
var message_flags = (function () {
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var exports = {};
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var batched_updaters = {};
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function batched_updater(flag, op, immediate) {
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var queue = [];
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var on_success;
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var start;
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function server_request() {
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// Wait for server IDs before sending flags
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var real_msgs = _.filter(queue, function (msg) {
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return msg.local_id === undefined;
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});
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var real_msg_ids = _.map(real_msgs, function (msg) {
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return msg.id;
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});
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if (real_msg_ids.length === 0) {
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setTimeout(start, 100);
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return;
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}
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// We have some real IDs. If there are any left in the queue when this
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// call finishes, they will be handled in the success callback.
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channel.post({
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url: '/json/messages/flags',
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idempotent: true,
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data: {messages: JSON.stringify(real_msg_ids),
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op: op,
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flag: flag},
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success: on_success
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});
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}
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if (immediate) {
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start = server_request;
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} else {
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start = _.debounce(server_request, 1000);
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}
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on_success = function on_success(data, status, jqXHR) {
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if (data === undefined || data.messages === undefined) {
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return;
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}
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queue = _.filter(queue, function (message) {
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return data.messages.indexOf(message.id) === -1;
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});
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if (queue.length > 0) {
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start();
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}
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};
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function add(message) {
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if (message.flags === undefined) {
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message.flags = [];
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}
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if (op === 'add') {
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message.flags.push(flag);
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} else {
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message.flags = _.without(message.flags, flag);
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}
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queue.push(message);
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start();
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}
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return add;
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}
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exports.send_read = batched_updater('read', 'add');
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function send_flag(messages, flag_name, set_flag) {
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var op = set_flag ? 'add' : 'remove';
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var flag_key = flag_name + '_' + op;
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var updater;
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if (batched_updaters.hasOwnProperty(flag_key)) {
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updater = batched_updaters[flag_key];
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} else {
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updater = batched_updater(flag_name, op, true);
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batched_updaters[flag_key] = updater;
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}
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_.each(messages, function (message) {
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updater(message);
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});
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}
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exports.send_collapsed = function send_collapse(messages, value) {
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send_flag(messages, "collapsed", value);
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};
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exports.send_starred = function send_starred(messages, value) {
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send_flag(messages, "starred", value);
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};
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exports.send_force_expand = function send_force_expand(messages, value) {
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send_flag(messages, "force_expand", value);
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};
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exports.send_force_collapse = function send_force_collapse(messages, value) {
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send_flag(messages, "force_collapse", value);
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};
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return exports;
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}());
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