mirror of
https://github.com/zulip/zulip.git
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9cbdbc4893
But do keep the pointer on the screen as you scroll, and smoothly scroll all the way up to the top or all the way down to the bottom. (imported from commit 6acad2a16339ee5eeeebd62a853000c21e4b7152)
894 lines
29 KiB
JavaScript
894 lines
29 KiB
JavaScript
/*jslint browser: true, devel: true, sloppy: true,
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plusplus: true, nomen: true, regexp: true,
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white: true, undef: true */
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/*global $: false, jQuery: false, Handlebars: false,
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zephyr_json: false, initial_pointer: false, email: false,
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class_list: false, instance_list: false, people_list: false,
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have_initial_messages: false */
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var loading_spinner;
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var templates = {};
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$(function () {
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// Display loading indicator. This disappears after the first
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// get_updates completes.
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if (have_initial_messages)
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loading_spinner = new Spinner().spin($('#loading_spinner')[0]);
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else
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$('#loading_indicator').hide();
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// Compile Handlebars templates.
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templates.zephyr = Handlebars.compile($("#template_zephyr").html());
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templates.subscription = Handlebars.compile($("#template_subscription").html());
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});
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function register_huddle_onclick(zephyr_row, sender) {
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zephyr_row.find(".zephyr_sender").click(function (e) {
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prepare_huddle(sender);
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// The sender span is inside the messagebox, which also has an
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// onclick handler. We don't want to trigger the messagebox
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// handler.
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e.stopPropagation();
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});
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}
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var zephyr_array = [];
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var zephyr_dict = {};
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var instance_list = [];
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var status_classes = 'alert-error alert-success alert-info';
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function report_error(response, xhr, status_box) {
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if (xhr.status.toString().charAt(0) === "4") {
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// Only display the error response for 4XX, where we've crafted
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// a nice response.
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response += ": " + $.parseJSON(xhr.responseText).msg;
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}
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status_box.removeClass(status_classes).addClass('alert-error')
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.text(response).stop(true).fadeTo(0, 1);
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}
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$(function () {
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$('#zephyr-type-tabs a[href="#class-message"]').on('shown', function (e) {
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$('#class-message input:not(:hidden):first').focus().select();
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});
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$('#zephyr-type-tabs a[href="#personal-message"]').on('shown', function (e) {
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$('#personal-message input:not(:hidden):first').focus().select();
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});
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// Prepare the click handler for subbing to a new class to which
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// you have composed a zephyr.
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$('#create-it').click(function () {
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sub(compose_class_name());
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$("#class-message form").ajaxSubmit();
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$('#class-dne').stop(true).fadeOut(500);
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});
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// Prepare the click handler for subbing to an existing class.
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$('#sub-it').click(function () {
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sub(compose_class_name());
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$("#class-message form").ajaxSubmit();
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$('#class-nosub').stop(true).fadeOut(500);
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});
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$('#sidebar a[href="#subscriptions"]').click(function () {
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$.ajax({
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type: 'GET',
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url: 'json/subscriptions/list',
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dataType: 'json',
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timeout: 10*1000,
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success: function (data) {
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$('#subscriptions_table tr').remove();
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if (data) {
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$.each(data.subscriptions, function (index, name) {
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$('#subscriptions_table').append(templates.subscription({subscription: name}));
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});
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}
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$('#new_subscriptions').focus().select();
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$("#subscriptions-status").fadeOut(0);
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},
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error: function (xhr) {
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report_error("Error listing subscriptions", xhr, $("#subscriptions-status"));
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},
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});
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});
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var last_mousewheel = 0;
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$("#main_div").mousewheel(function () {
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var time = $.now();
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if (time - last_mousewheel > 50) {
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keep_pointer_in_view();
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last_mousewheel = time;
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}
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});
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});
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$.ajaxSetup({
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beforeSend: function (xhr, settings) {
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function getCookie(name) {
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var i, cookies, cookieValue = null;
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if (document.cookie && document.cookie !== '') {
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cookies = document.cookie.split(';');
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for (i = 0; i < cookies.length; i++) {
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var cookie = jQuery.trim(cookies[i]);
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// Does this cookie string begin with the name we want?
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if (cookie.substring(0, name.length + 1) === (name + '=')) {
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cookieValue = decodeURIComponent(cookie.substring(name.length + 1));
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break;
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}
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}
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}
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return cookieValue;
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}
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if (!(/^http:.*/.test(settings.url) || /^https:.*/.test(settings.url))) {
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// Only send the token to relative URLs i.e. locally.
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xhr.setRequestHeader("X-CSRFToken", getCookie('csrftoken'));
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}
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}
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});
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function sub(zephyr_class) {
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// TODO: check the return value and handle an error condition
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$.post('/json/subscriptions/add', {new_subscription: zephyr_class});
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}
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function compose_button() {
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clear_compose_box();
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$('#sidebar a[href="#home"]').tab('show');
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show_compose('class', $("#class"));
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}
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function hide_compose() {
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$('input, textarea, button').blur();
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$('.zephyr_compose').slideUp('fast');
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}
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function show_compose(tabname, focus_area) {
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$('.zephyr_compose').slideDown('fast');
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$('#zephyr-type-tabs a[href="#' + tabname + '-message"]').tab('show');
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focus_area.focus();
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focus_area.select();
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}
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function toggle_compose() {
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if ($("#zephyr-type-tabs li.active").find("a[href=#class-message]").length !== 0) {
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// In class tab, switch to personals.
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show_compose('personal', $("#recipient"));
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} else {
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show_compose('class', $("#class"));
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}
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}
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function compose_class_name() {
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return $.trim($("#class").val());
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}
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$(function () {
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var send_status = $('#send-status');
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var buttons = $('#class-message, #personal-message').find('input[type="submit"]');
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var options = {
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dataType: 'json', // This seems to be ignored. We still get back an xhr.
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beforeSubmit: function (form, _options) {
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send_status.removeClass(status_classes)
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.addClass('alert-info')
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.text('Sending')
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.stop(true).fadeTo(0,1);
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buttons.attr('disabled', 'disabled');
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buttons.blur();
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if ($("#class-message:visible")[0] === undefined) {// we're not dealing with classes
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return true;
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}
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var zephyr_class = compose_class_name();
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if (zephyr_class === "") {
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// You can't try to send to an empty class.
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send_status.removeClass(status_classes)
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.addClass('alert-error')
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.text('Please specify a class')
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.stop(true).fadeTo(0,1);
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buttons.removeAttr('disabled');
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$('#class-message input:not(:hidden):first').focus().select();
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return false;
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}
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var okay = true;
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$.ajax({
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url: "subscriptions/exists/" + zephyr_class,
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async: false,
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success: function (data) {
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if (data === "False") {
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// The class doesn't exist
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okay = false;
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send_status.removeClass(status_classes);
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send_status.toggle();
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$('#class-dne-name').text(zephyr_class);
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$('#class-dne').show();
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$('#create-it').focus();
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buttons.removeAttr('disabled');
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hide_compose();
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}
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}
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});
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if (okay && class_list.indexOf(zephyr_class) === -1) {
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// You're not subbed to the class
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okay = false;
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send_status.removeClass(status_classes);
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send_status.toggle();
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$('#class-nosub-name').text(zephyr_class);
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$('#class-nosub').show();
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$('#sub-it').focus();
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buttons.removeAttr('disabled');
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hide_compose();
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}
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return okay;
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},
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success: function (resp, statusText, xhr, form) {
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form.find('textarea').val('');
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send_status.removeClass(status_classes)
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.addClass('alert-success')
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.text('Sent message')
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.stop(true).fadeTo(0,1).delay(250).fadeOut(250, hide_compose);
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buttons.removeAttr('disabled');
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},
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error: function (xhr) {
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var response = "Error sending message";
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if (xhr.status.toString().charAt(0) === "4") {
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// Only display the error response for 4XX, where we've crafted
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// a nice response.
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response += ": " + $.parseJSON(xhr.responseText).msg;
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}
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send_status.removeClass(status_classes)
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.addClass('alert-error')
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.text(response)
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.append($('<span />')
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.addClass('send-status-close').html('×')
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.click(function () { send_status.stop(true).fadeOut(500); }))
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.stop(true).fadeTo(0,1);
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buttons.removeAttr('disabled');
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}
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};
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send_status.hide();
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$("#class-message form").ajaxForm(options);
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$("#personal-message form").ajaxForm(options);
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});
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$(function () {
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var options = {
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dataType: 'json', // This seems to be ignored. We still get back an xhr.
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success: function (resp, statusText, xhr, form) {
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var name = $.parseJSON(xhr.responseText).data;
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$('#subscriptions_table').find('button[value="' + name + '"]').parents('tr').remove();
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$("#subscriptions-status").fadeOut(0);
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},
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error: function (xhr) {
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report_error("Error removing subscription", xhr, $("#subscriptions-status"));
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},
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};
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$("#current_subscriptions").ajaxForm(options);
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});
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$(function () {
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var options = {
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dataType: 'json', // This seems to be ignored. We still get back an xhr.
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success: function (resp, statusText, xhr, form) {
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$("#new_subscription").val("");
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var name = $.parseJSON(xhr.responseText).data;
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$('#subscriptions_table').prepend(templates.subscription({subscription: name}));
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class_list.push(name);
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$("#subscriptions-status").fadeOut(0);
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},
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error: function (xhr) {
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report_error("Error adding subscription", xhr, $("#subscriptions-status"));
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},
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};
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$("#add_new_subscription").ajaxForm(options);
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});
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$(function () {
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var settings_status = $('#settings-status');
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settings_status.hide();
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var options = {
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dataType: 'json', // This seems to be ignored. We still get back an xhr.
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success: function (resp, statusText, xhr, form) {
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var message = "Updated settings!";
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var result = $.parseJSON(xhr.responseText);
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if ((result.full_name !== undefined) || (result.short_name !== undefined)) {
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message = "Updated settings! You will need to reload the page for your changes to take effect.";
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}
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settings_status.removeClass(status_classes)
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.addClass('alert-success')
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.text(message).stop(true).fadeTo(0,1);
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// TODO: In theory we should auto-reload or something if
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// you changed the email address or other fields that show
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// up on all screens
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},
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error: function (xhr, error_type, xhn) {
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var response = "Error changing settings";
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if (xhr.status.toString().charAt(0) === "4") {
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// Only display the error response for 4XX, where we've crafted
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// a nice response.
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response += ": " + $.parseJSON(xhr.responseText).msg;
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}
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settings_status.removeClass(status_classes)
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.addClass('alert-error')
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.text(response).stop(true).fadeTo(0,1);
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},
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};
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$("#current_settings form").ajaxForm(options);
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});
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var selected_zephyr_id = -1; /* to be filled in on document.ready */
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var selected_zephyr; // = get_zephyr_row(selected_zephyr_id)
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var last_received = -1;
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// Narrowing predicate, or 'false' for the home view.
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var narrowed = false;
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// For tracking where you were before you narrowed.
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var persistent_zephyr_id = 0;
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var high_water_mark = 0;
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function get_all_zephyr_rows() {
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return $('tr.zephyr_row');
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}
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function get_next_visible(zephyr_row) {
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if (zephyr_row === undefined)
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return [];
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return zephyr_row.nextAll('.zephyr_row:first');
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}
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function get_prev_visible(zephyr_row) {
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if (zephyr_row === undefined)
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return [];
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return zephyr_row.prevAll('.zephyr_row:first');
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}
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function get_first_visible() {
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return $('.focused_table .zephyr_row:first');
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}
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function get_last_visible() {
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return $('.focused_table .zephyr_row:last');
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}
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function get_id(zephyr_row) {
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return zephyr_row.attr('zid');
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}
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function get_zephyr_row(zephyr_id) {
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return $('#' + (narrowed ? 'zfilt' : 'zhome') + zephyr_id);
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}
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function scroll_to_selected() {
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var main_div = $('#main_div');
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main_div.scrollTop(0);
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main_div.scrollTop(selected_zephyr.offset().top - main_div.height()/1.5);
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}
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function get_huddle_recipient(zephyr) {
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var recipient, i;
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recipient = zephyr.display_recipient[0].email;
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for (i = 1; i < zephyr.display_recipient.length; i++) {
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recipient += ', ' + zephyr.display_recipient[i].email;
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}
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return recipient;
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}
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function get_huddle_recipient_names(zephyr) {
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var recipient, i;
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recipient = zephyr.display_recipient[0].name;
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for (i = 1; i < zephyr.display_recipient.length; i++) {
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recipient += ', ' + zephyr.display_recipient[i].name;
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}
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return recipient;
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}
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function respond_to_zephyr() {
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var zephyr, recipient, recipients;
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zephyr = zephyr_dict[selected_zephyr_id];
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switch (zephyr.type) {
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case 'class':
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$('#zephyr-type-tabs a[href="#class-message"]').tab('show');
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$("#class").val(zephyr.display_recipient);
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$("#instance").val(zephyr.instance);
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show_compose('class', $("#new_zephyr"));
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break;
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case 'huddle':
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$('#zephyr-type-tabs a[href="#personal-message"]').tab('show');
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prepare_huddle(zephyr.reply_to);
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break;
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case 'personal':
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// Until we allow sending zephyrs based on multiple meaningful
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// representations of a user (name, username, email, etc.), just
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// deal with emails.
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recipient = zephyr.display_recipient;
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if (recipient === email) { // that is, we sent the original message
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recipient = zephyr.sender_email;
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}
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prepare_huddle(recipient);
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break;
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}
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}
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// Called by mouseover etc.
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function select_zephyr_by_id(zephyr_id) {
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if (zephyr_id === selected_zephyr_id) {
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return;
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}
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select_zephyr(get_zephyr_row(zephyr_id), false);
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}
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// Called on page load and when we [un]narrow.
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// Forces a call to select_zephyr even if the id has not changed,
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// because the visible table might have.
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function select_and_show_by_id(zephyr_id) {
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select_zephyr(get_zephyr_row(zephyr_id), true);
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}
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function update_selected_zephyr(zephyr) {
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$('.selected_zephyr').removeClass('selected_zephyr');
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zephyr.addClass('selected_zephyr');
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var new_selected_id = get_id(zephyr);
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if (!narrowed && new_selected_id !== selected_zephyr_id) {
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// Narrowing is a temporary view on top of the home view and
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// doesn't permanently affect where you are.
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//
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// We also don't want to post if there's no effective change.
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$.post("update", {pointer: new_selected_id});
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}
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selected_zephyr_id = new_selected_id;
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selected_zephyr = zephyr;
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if (parseInt(selected_zephyr_id, 10) > high_water_mark) {
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high_water_mark = parseInt(selected_zephyr_id, 10);
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}
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}
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function select_zephyr(next_zephyr, scroll_to) {
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var main_div = $("#main_div");
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/* If the zephyr exists but is hidden, try to find the next visible one. */
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if (next_zephyr.length !== 0 && next_zephyr.is(':hidden')) {
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next_zephyr = get_next_visible(next_zephyr);
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}
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/* Fall back to the first visible zephyr. */
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if (next_zephyr.length === 0) {
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next_zephyr = $('tr:not(:hidden):first');
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}
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if (next_zephyr.length === 0) {
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// There are no zephyrs!
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return false;
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}
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update_selected_zephyr(next_zephyr);
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if (scroll_to &&
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((next_zephyr.offset().top < main_div.offset().top) ||
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(next_zephyr.offset().top + next_zephyr.height() >
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main_div.offset().top + main_div.height()))) {
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scroll_to_selected();
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}
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}
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function go_to_high_water_mark() {
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select_and_show_by_id(high_water_mark);
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}
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/* We use 'visibility' rather than 'display' and jQuery's show() / hide(),
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because we want to reserve space for the email address. This avoids
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things jumping around slightly when the email address is shown. */
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function hide_email() {
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$('.zephyr_sender_email').addClass('invisible');
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}
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function show_email() {
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|
hide_email();
|
|
selected_zephyr.find('.zephyr_sender_email').removeClass('invisible');
|
|
}
|
|
|
|
// NB: This just binds to current elements, and won't bind to elements
|
|
// created after ready() is called.
|
|
|
|
$(function () {
|
|
$('input, textarea, button').focus(function () {
|
|
keydown_handler = process_key_in_input;
|
|
});
|
|
$('input, textarea, button').blur(function () {
|
|
keydown_handler = process_hotkey;
|
|
});
|
|
});
|
|
|
|
function prepare_huddle(recipients) {
|
|
// Used for both personals and huddles.
|
|
show_compose('personal', $("#new_personal_zephyr"));
|
|
$("#recipient").val(recipients);
|
|
}
|
|
|
|
function do_narrow(description, filter_function) {
|
|
narrowed = filter_function;
|
|
|
|
// Your pointer isn't changed when narrowed.
|
|
persistent_zephyr_id = selected_zephyr_id;
|
|
|
|
// We want the zephyr on which the narrow happened to stay in the same place if possible.
|
|
var old_top = $("#main_div").offset().top - selected_zephyr.offset().top;
|
|
var parent;
|
|
|
|
// Empty the filtered table right before we fill it again
|
|
$("#zfilt").empty();
|
|
add_to_table(zephyr_array, 'zfilt', filter_function);
|
|
|
|
// Show the new set of messages.
|
|
$("#zfilt").addClass("focused_table");
|
|
|
|
$("#show_all_messages").removeAttr("disabled");
|
|
$("#narrowbox").show();
|
|
$("#main_div").addClass("narrowed_view");
|
|
$("#currently_narrowed_to").html(description);
|
|
$("#zhome").removeClass("focused_table");
|
|
|
|
select_and_show_by_id(selected_zephyr_id);
|
|
scroll_to_selected();
|
|
}
|
|
|
|
function narrow_huddle() {
|
|
var original = zephyr_dict[selected_zephyr_id];
|
|
do_narrow("Group chats with " + original.reply_to, function (other) {
|
|
return other.reply_to === original.reply_to;
|
|
});
|
|
}
|
|
|
|
function narrow_all_personals() {
|
|
do_narrow("All huddles with you", function (other) {
|
|
return other.type === "personal" || other.type === "huddle";
|
|
});
|
|
}
|
|
|
|
function narrow_personals() {
|
|
// Narrow to personals with a specific user
|
|
var original = zephyr_dict[selected_zephyr_id];
|
|
var other_party;
|
|
if (original.display_recipient === email) {
|
|
other_party = original.sender_email;
|
|
} else {
|
|
other_party = original.display_recipient;
|
|
}
|
|
|
|
do_narrow("Huddles with " + other_party, function (other) {
|
|
return (other.type === 'personal') &&
|
|
(((other.display_recipient === original.display_recipient) && (other.sender_email === original.sender_email)) ||
|
|
((other.display_recipient === original.sender_email) && (other.sender_email === original.display_recipient)));
|
|
});
|
|
|
|
}
|
|
|
|
function narrow_class() {
|
|
var original = zephyr_dict[selected_zephyr_id];
|
|
var message = "<span class='zephyr_class'>" + original.display_recipient + "</span>";
|
|
do_narrow(message, function (other) {
|
|
return (other.type === 'class' &&
|
|
original.recipient_id === other.recipient_id);
|
|
});
|
|
}
|
|
|
|
function narrow_instance() {
|
|
var original = zephyr_dict[selected_zephyr_id];
|
|
if (original.type !== 'class')
|
|
return;
|
|
|
|
var message = "<span class='zephyr_class'>" + original.display_recipient
|
|
+ "</span> | <span class='zephyr_instance'>" + original.instance
|
|
+ "</span>";
|
|
do_narrow(message, function (other) {
|
|
return (other.type === 'class' &&
|
|
original.recipient_id === other.recipient_id &&
|
|
original.instance === other.instance);
|
|
});
|
|
}
|
|
|
|
// Called for the 'narrow by class' hotkey.
|
|
function narrow_by_recipient() {
|
|
switch (zephyr_dict[selected_zephyr_id].type) {
|
|
case 'personal': narrow_personals(); break;
|
|
case 'huddle': narrow_huddle(); break;
|
|
case 'class': narrow_class(); break;
|
|
}
|
|
}
|
|
|
|
function show_all_messages() {
|
|
if (!narrowed) {
|
|
return;
|
|
}
|
|
narrowed = false;
|
|
|
|
$("#zfilt").removeClass('focused_table');
|
|
$("#zhome").addClass('focused_table');
|
|
$("#narrowbox").hide();
|
|
$("#main_div").removeClass('narrowed_view');
|
|
$("#show_all_messages").attr("disabled", "disabled");
|
|
$("#currently_narrowed_to").html("");
|
|
|
|
// Includes scrolling.
|
|
select_and_show_by_id(persistent_zephyr_id);
|
|
|
|
scroll_to_selected();
|
|
}
|
|
|
|
var autocomplete_needs_update = false;
|
|
|
|
function update_autocomplete() {
|
|
class_list.sort();
|
|
instance_list.sort();
|
|
people_list.sort();
|
|
|
|
// limit number of items so the list doesn't fall off the screen
|
|
$( "#class" ).typeahead({
|
|
source: class_list,
|
|
items: 3,
|
|
});
|
|
$( "#instance" ).typeahead({
|
|
source: instance_list,
|
|
items: 2,
|
|
});
|
|
$( "#recipient" ).typeahead({
|
|
source: people_list,
|
|
items: 4,
|
|
});
|
|
|
|
autocomplete_needs_update = false;
|
|
}
|
|
|
|
function same_recipient(a, b) {
|
|
if ((a === undefined) || (b === undefined))
|
|
return false;
|
|
if (a.type !== b.type)
|
|
return false;
|
|
|
|
switch (a.type) {
|
|
case 'huddle':
|
|
return a.recipient_id === b.recipient_id;
|
|
case 'personal':
|
|
return a.reply_to === b.reply_to;
|
|
case 'class':
|
|
return (a.recipient_id === b.recipient_id) &&
|
|
(a.instance === b.instance);
|
|
}
|
|
|
|
// should never get here
|
|
return false;
|
|
}
|
|
|
|
function same_sender(a, b) {
|
|
return ((a !== undefined) && (b !== undefined) &&
|
|
(a.sender_email === b.sender_email));
|
|
}
|
|
|
|
function add_to_table(zephyrs, table_name, filter_function) {
|
|
var table = $('#' + table_name);
|
|
var prev = zephyr_dict[table.find('tr:last-child').attr('zid')];
|
|
var zephyrs_to_render = [];
|
|
var ids_where_next_is_same_sender = [];
|
|
|
|
$.each(zephyrs, function (index, zephyr) {
|
|
if (! filter_function(zephyr))
|
|
return;
|
|
|
|
zephyr.content = linkify(zephyr.content, {
|
|
callback: function (text, href) {
|
|
return href ? '<a href="' + href + '" target="_blank" title="' +
|
|
href + '" onclick="event.cancelBubble = true;"">' + text + '</a>' : text;
|
|
}
|
|
});
|
|
|
|
zephyr.include_recipient = false;
|
|
zephyr.include_bookend = false;
|
|
if (! same_recipient(prev, zephyr)) {
|
|
// Add a space to the table, but not for the first element.
|
|
zephyr.include_recipient = true;
|
|
zephyr.include_bookend = (prev !== undefined);
|
|
}
|
|
|
|
zephyr.include_sender = true;
|
|
if (same_sender(prev, zephyr) && !zephyr.include_recipient) {
|
|
zephyr.include_sender = false;
|
|
ids_where_next_is_same_sender.push(prev.id);
|
|
}
|
|
|
|
zephyr.dom_id = table_name + zephyr.id;
|
|
|
|
zephyrs_to_render.push(zephyr);
|
|
prev = zephyr;
|
|
});
|
|
|
|
table.append(templates.zephyr({'zephyrs': zephyrs_to_render}));
|
|
|
|
$.each(zephyrs_to_render, function (index, zephyr) {
|
|
register_huddle_onclick(get_zephyr_row(zephyr.id), zephyr.sender_email);
|
|
});
|
|
|
|
$.each(ids_where_next_is_same_sender, function (index, id) {
|
|
get_zephyr_row(id).find('.messagebox').addClass("next_is_same_sender");
|
|
});
|
|
}
|
|
|
|
function add_zephyr_metadata(dummy, zephyr) {
|
|
last_received = Math.max(last_received, zephyr.id);
|
|
|
|
switch (zephyr.type) {
|
|
case 'class':
|
|
zephyr.is_class = true;
|
|
if ($.inArray(zephyr.display_recipient, class_list) === -1) {
|
|
class_list.push(zephyr.display_recipient);
|
|
autocomplete_needs_update = true;
|
|
}
|
|
if ($.inArray(zephyr.instance, instance_list) === -1) {
|
|
instance_list.push(zephyr.instance);
|
|
autocomplete_needs_update = true;
|
|
}
|
|
break;
|
|
|
|
case 'huddle':
|
|
zephyr.is_huddle = true;
|
|
zephyr.reply_to = get_huddle_recipient(zephyr);
|
|
zephyr.display_reply_to = get_huddle_recipient_names(zephyr);
|
|
break;
|
|
|
|
case 'personal':
|
|
zephyr.is_personal = true;
|
|
|
|
if (zephyr.display_recipient === email) { // that is, we sent the original message
|
|
zephyr.reply_to = zephyr.sender_email;
|
|
} else {
|
|
zephyr.reply_to = zephyr.display_recipient;
|
|
}
|
|
zephyr.display_reply_to = zephyr.reply_to;
|
|
|
|
if (zephyr.reply_to !== email &&
|
|
$.inArray(zephyr.reply_to, people_list) === -1) {
|
|
people_list.push(zephyr.reply_to);
|
|
autocomplete_needs_update = true;
|
|
}
|
|
break;
|
|
}
|
|
|
|
var time = new Date(zephyr.timestamp * 1000);
|
|
var two_digits = function (x) { return ('0' + x).slice(-2); };
|
|
zephyr.timestr = two_digits(time.getHours())
|
|
+ ':' + two_digits(time.getMinutes());
|
|
zephyr.full_date_str = time.toLocaleString();
|
|
|
|
zephyr_dict[zephyr.id] = zephyr;
|
|
}
|
|
|
|
function add_messages(zephyrs) {
|
|
$.each(zephyrs, add_zephyr_metadata);
|
|
|
|
if (loading_spinner) {
|
|
loading_spinner.stop();
|
|
$('#loading_indicator').hide();
|
|
loading_spinner = undefined;
|
|
}
|
|
|
|
if (narrowed)
|
|
add_to_table(zephyrs, 'zfilt', narrowed);
|
|
|
|
// Even when narrowed, add messages to the home view so they exist when we un-narrow.
|
|
add_to_table(zephyrs, 'zhome', function () { return true; });
|
|
|
|
$.each(zephyrs, function () {
|
|
zephyr_array.push(this);
|
|
|
|
// 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.
|
|
if ((this.id === initial_pointer) && (selected_zephyr_id === -1)) {
|
|
select_and_show_by_id(initial_pointer);
|
|
}
|
|
});
|
|
|
|
if (autocomplete_needs_update)
|
|
update_autocomplete();
|
|
}
|
|
|
|
function clear_compose_box() {
|
|
$("#zephyr_compose").find('input[type=text], textarea').val('');
|
|
}
|
|
|
|
var get_updates_failures = 0;
|
|
function get_updates() {
|
|
console.log(new Date() + ': longpoll started');
|
|
$.ajax({
|
|
type: 'POST',
|
|
url: 'get_updates',
|
|
data: { last_received: last_received },
|
|
dataType: 'json',
|
|
timeout: 10*60*1000, // 10 minutes in ms
|
|
success: function (data) {
|
|
console.log(new Date() + ': longpoll success');
|
|
get_updates_failures = 0;
|
|
$('#connection-error').hide();
|
|
|
|
if (data && data.zephyrs) {
|
|
add_messages(data.zephyrs);
|
|
}
|
|
setTimeout(get_updates, 0);
|
|
},
|
|
error: function (xhr, error_type, exn) {
|
|
if (error_type === 'timeout') {
|
|
// Retry indefinitely on timeout.
|
|
console.log(new Date() + ': longpoll timed out');
|
|
get_updates_failures = 0;
|
|
$('#connection-error').hide();
|
|
} else {
|
|
console.log(new Date() + ': longpoll failed with ' + error_type +
|
|
' (' + get_updates_failures + ' failures)');
|
|
get_updates_failures += 1;
|
|
}
|
|
|
|
if (get_updates_failures >= 5) {
|
|
$('#connection-error').show();
|
|
} else {
|
|
$('#connection-error').hide();
|
|
}
|
|
|
|
var retry_sec = Math.min(90, Math.exp(get_updates_failures/2));
|
|
console.log(new Date() + ': longpoll retrying in ' + retry_sec + ' seconds');
|
|
setTimeout(get_updates, retry_sec*1000);
|
|
}
|
|
});
|
|
}
|
|
|
|
$(function () {
|
|
get_updates();
|
|
$('.button-slide').click(function () {
|
|
show_compose('class', $("#class"));
|
|
});
|
|
});
|
|
|
|
function above_view(zephyr) {
|
|
return zephyr.offset().top < $("#main_div").offset().top;
|
|
}
|
|
|
|
function below_view(zephyr) {
|
|
var main_div = $("#main_div");
|
|
return zephyr.offset().top + zephyr.height() > main_div.offset().top + main_div.height();
|
|
}
|
|
|
|
function keep_pointer_in_view() {
|
|
var main_div = $("#main_div");
|
|
var next_zephyr = get_zephyr_row(selected_zephyr_id);
|
|
|
|
if (above_view(next_zephyr)) {
|
|
while (above_view(next_zephyr)) {
|
|
next_zephyr = get_next_visible(next_zephyr);
|
|
}
|
|
} else if (below_view(next_zephyr)) {
|
|
while (below_view(next_zephyr)) {
|
|
next_zephyr = get_prev_visible(next_zephyr);
|
|
}
|
|
}
|
|
|
|
if ((main_div.scrollTop() === 0) && (next_zephyr.attr("zid") > get_first_visible().attr("zid"))) {
|
|
// If we've scrolled to the top, keep inching the selected
|
|
// zephyr up to the top instead of just the latest one that is
|
|
// still on the screen.
|
|
next_zephyr = get_prev_visible(next_zephyr);
|
|
} else if ((main_div.scrollTop() + main_div.innerHeight() >= main_div[0].scrollHeight) &&
|
|
(next_zephyr.attr("zid") < get_last_visible().attr("zid"))) {
|
|
next_zephyr = get_next_visible(next_zephyr);
|
|
}
|
|
update_selected_zephyr(next_zephyr);
|
|
}
|