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56ea3d12d5
You don't care about that content anymore. We probably want to clear even more aggressively than this. (imported from commit 29f6910a12e1b722f5801db644b04f54cf5bfd63)
618 lines
20 KiB
JavaScript
618 lines
20 KiB
JavaScript
/*jslint browser: true, devel: true, sloppy: true,
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plusplus: true, nomen: true, regexp: true */
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/*global $: false, jQuery: false, ich: false,
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zephyr_json: false, initial_pointer: false, username: false,
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class_list: false, instance_list: false, people_list: false */
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$(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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});
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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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// Supports multiple classes, separate by commas.
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// TODO: check the return value and handle an error condition
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$.post('/subscriptions/add/', {new_subscriptions: zephyr_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) {
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$('.zephyr_compose').slideDown('fast');
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if (tabname) {
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$('#zephyr-type-tabs a[href="#' + tabname + '-message"]').tab('show');
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}
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}
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$(function () {
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var status_classes = 'alert-error alert-success alert-info';
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var send_status = $('#send-status');
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var buttons = $('#class-message, #personal-message').find('input[type="submit"]');
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var options = {
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dataType: 'json', // This seems to be ignored. We still get back an xhr.
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beforeSubmit: function (form, _options) {
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send_status.removeClass(status_classes)
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.addClass('alert-info')
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.text('Sending')
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.stop(true).fadeTo(0,1);
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hide_compose();
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buttons.attr('disabled', 'disabled');
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buttons.blur();
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if ($("#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 okay = true;
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$.ajax({
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url: "subscriptions/exists/" + $("#class").val(),
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async: false,
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success: function (data) {
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if (data === "False") {
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// The class doesn't exist
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okay = false;
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send_status.removeClass(status_classes);
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send_status.toggle();
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$('#class-dne-name').text($("#class").val());
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$('#class-dne').show();
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$('#create-it').focus().click(function () {
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sub($("#class").val());
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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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buttons.removeAttr('disabled');
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}
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}
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});
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if (okay && class_list.indexOf($("#class").val()) === -1) {
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// You're not subbed to the class
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okay = false;
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send_status.removeClass(status_classes);
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send_status.toggle();
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$('#class-nosub-name').text($("#class").val());
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$('#class-nosub').show();
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$('#sub-it').focus().click(function () {
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sub($("#class").val());
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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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buttons.removeAttr('disabled');
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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(1000).fadeOut(1000);
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buttons.removeAttr('disabled');
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clear_compose_box();
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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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var selected_zephyr_id = 0; /* to be filled in on document.ready */
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var last_received = -1;
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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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return zephyr_row.nextAll(':visible:first');
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}
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function get_prev_visible(zephyr_row) {
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return zephyr_row.prevAll(':visible:first');
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}
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function get_id(zephyr_row) {
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return zephyr_row.attr('id');
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}
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function get_zephyr(zephyr_id) {
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return $("#" + zephyr_id);
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}
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function scroll_to_selected() {
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var main_div = $('#main_div');
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main_div.scrollTop(0);
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main_div.scrollTop(get_zephyr(selected_zephyr_id).offset().top - main_div.height()/1.5);
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}
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function respond_to_zephyr() {
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var parent, zephyr;
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var recipient, recipients;
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parent = get_zephyr(selected_zephyr_id);
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zephyr = zephyr_dict[parent.attr('id')];
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$('.zephyr_compose').slideToggle('fast');
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if (zephyr.type === '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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$("#instance").val(zephyr.instance);
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$("#new_zephyr").focus();
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$("#new_zephyr").select();
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} else if (zephyr.type === 'huddle') {
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$('#zephyr-type-tabs a[href="#personal-message"]').tab('show');
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recipient = '';
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for (i in zephyr.display_recipient) {
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recipient += zephyr.display_recipient[i].name + ', ';
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}
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$("#recipient").val(recipient);
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$("#new_personal_zephyr").focus();
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$("#new_personal_zephyr").select();
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} else if (zephyr.type === 'personal') {
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// Until we allow sending zephyrs based on multiple meaningful
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// representations of a user (name, username, email, etc.), just
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// deal with usernames.
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recipient = zephyr.display_recipient;
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if ( recipient === username) { // that is, we sent the original message
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recipient = zephyr.sender;
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}
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prepare_huddle(recipient);
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}
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}
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function update_pointer(zephyr) {
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var new_selected = get_id(zephyr);
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if (new_selected == selected_zephyr_id)
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return;
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selected_zephyr_id = new_selected;
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$('.selected_zephyr').removeClass('selected_zephyr');
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zephyr.addClass('selected_zephyr');
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$.post("update", { pointer: selected_zephyr_id });
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}
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function update_pointer_by_id(zephyr_id) {
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update_pointer(get_zephyr(zephyr_id));
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}
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function select_zephyr(zephyr_id) {
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var next_zephyr = get_zephyr(zephyr_id);
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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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update_pointer(next_zephyr);
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if ((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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/* 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 show_email(zephyr_id) {
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get_zephyr(zephyr_id).find('.zephyr_sender_email').removeClass('invisible');
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}
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function hide_email(zephyr_id) {
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get_zephyr(zephyr_id).find('.zephyr_sender_email').addClass('invisible');
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}
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function process_hotkey(code) {
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var next_zephyr;
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switch (code) {
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case 40: // down arrow
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case 38: // up arrow
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if (code === 40) {
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next_zephyr = get_next_visible(get_zephyr(selected_zephyr_id));
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} else {
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next_zephyr = get_prev_visible(get_zephyr(selected_zephyr_id));
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}
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if (next_zephyr.length !== 0) {
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select_zephyr(get_id(next_zephyr));
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}
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if ((next_zephyr.length === 0) && (code === 40)) {
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// At the last zephyr, scroll to the bottom so we have
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// lots of nice whitespace for new zephyrs coming in.
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$("#main_div").scrollTop($("#main_div").prop("scrollHeight"));
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}
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return process_hotkey;
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case 27: // Esc: hide compose pane
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hide_compose();
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return process_hotkey;
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case 82: // 'r': respond to zephyr
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respond_to_zephyr();
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return process_key_in_input;
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case 71: // 'g': start of "go to" command
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return process_goto_hotkey;
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}
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return false;
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}
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function process_goto_hotkey(code) {
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switch (code) {
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case 67: // 'c': narrow by recipient
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parent = get_zephyr(selected_zephyr_id);
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zephyr_class = parent.find(".zephyr_class").text();
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zephyr_huddle = parent.find(".zephyr_huddle_recipient").text();
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if (zephyr_class == '' && zephyr_huddle == '') {
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narrow_personals();
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} else if (zephyr_class == '') {
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narrow_huddle();
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}
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else {
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narrow_class();
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}
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break;
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case 73: // 'i': narrow by instance
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narrow_instance();
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break;
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case 80: // 'p': narrow to personals
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narrow_all_personals();
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break;
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case 65: // 'a': un-narrow
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show_all_messages();
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break;
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case 27: // Esc: hide compose pane
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hide_compose();
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break;
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}
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/* Always return to the initial hotkey mode, even
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with an unrecognized "go to" command. */
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return process_hotkey;
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}
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function process_key_in_input(code) {
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if (code === 27) {
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// User hit Escape key
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hide_compose();
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return process_hotkey;
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}
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return false;
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}
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/* The current handler function for keydown events.
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It should return a new handler, or 'false' to
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decline to handle the event. */
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var keydown_handler = process_hotkey;
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$(document).keydown(function (event) {
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var result = keydown_handler(event.keyCode);
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if (typeof result === 'function') {
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keydown_handler = result;
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event.preventDefault();
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}
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});
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// NB: This just binds to current elements, and won't bind to elements
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// created after ready() is called.
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$(function () {
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$('input, textarea, button').focus(function () {
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keydown_handler = process_key_in_input;
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});
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$('input, textarea, button').blur(function () {
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keydown_handler = process_hotkey;
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});
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});
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function home_view(element) {
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return true;
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}
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var current_view_predicate = home_view;
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function apply_view(element) {
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if (current_view_predicate(element)) {
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element.show();
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} else {
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element.hide();
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}
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}
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function prepare_huddle(recipients) {
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// Used for both personals and huddles.
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show_compose('personal');
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$("#recipient").val(recipients);
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$("#new_personal_zephyr").focus();
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$("#new_personal_zephyr").select();
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}
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function do_narrow(description, filter_function) {
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// Hide the messages temporarily, so the browser doesn't waste time
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// incrementally recalculating the layout.
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$("#main_div").hide();
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// We want the zephyr on which the narrow happened to stay in the same place if possible.
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var old_top = $("#main_div").offset().top - get_zephyr(selected_zephyr_id).offset().top;
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current_view_predicate = filter_function;
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get_all_zephyr_rows().each(function () {
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apply_view($(this));
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});
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// Show the new set of messages.
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$("#main_div").show();
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select_zephyr(selected_zephyr_id);
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scroll_to_selected();
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$("#show_all_messages").removeAttr("disabled");
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$("#narrowbox").show();
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$("#currently_narrowed_to").html(description);
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}
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function narrow_huddle() {
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var recipients = get_zephyr(selected_zephyr_id).find(".zephyr_huddle_recipients_list").text();
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var message = "Group chats with " + recipients;
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do_narrow(message, function (element) {
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return (element.find(".zephyr_huddle_recipient").length > 0 &&
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element.find(".zephyr_huddle_recipients_list").text() === recipients);
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});
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}
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function narrow_all_personals() {
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// Narrow to all personals
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var message = "All huddles with you";
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do_narrow(message, function (element) {
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return (element.find(".zephyr_personal_recipient").length > 0);
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});
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}
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function narrow_personals() {
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// Narrow to personals with a specific user
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var target_zephyr = get_zephyr(selected_zephyr_id);
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var zephyr_obj = zephyr_dict[target_zephyr.attr('id')];
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var other_party;
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if (zephyr_obj.display_recipient === username) {
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other_party = zephyr_obj.sender;
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} else {
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other_party = zephyr_obj.display_recipient;
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}
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var message = "Huddles with " + other_party;
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do_narrow(message, function (element) {
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var other_zephyr_obj = zephyr_dict[target_zephyr.attr('id')];
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var recipient = element.find(".zephyr_personal_recipient");
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var sender = element.find(".zephyr_sender");
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return (recipient.length > 0) &&
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(((other_zephyr_obj.display_recipient === zephyr_obj.display_recipient) && (other_zephyr_obj.sender === zephyr_obj.sender)) ||
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((other_zephyr_obj.display_recipient === zephyr_obj.sender) && (other_zephyr_obj.sender === zephyr_obj.display_recipient)));
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});
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}
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function narrow_class() {
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var parent = get_zephyr(selected_zephyr_id);
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var zephyr_class = parent.find(".zephyr_class").text();
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var message = "<span class='zephyr_class'>" + zephyr_class + "</span>";
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do_narrow(message, function (element) {
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return (element.find(".zephyr_class").length > 0 &&
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element.find(".zephyr_class").text() === zephyr_class);
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});
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}
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function narrow_instance() {
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var parent = get_zephyr(selected_zephyr_id);
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var zephyr_class = parent.find(".zephyr_class").text();
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var zephyr_instance = parent.find(".zephyr_instance").text();
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var message = "<span class='zephyr_class'>" + zephyr_class
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+ "</span> | <span class='zephyr_instance'>" + zephyr_instance + "</span>";
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do_narrow(message, function (element) {
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return (element.find(".zephyr_class").length > 0 &&
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element.find(".zephyr_class").text() === zephyr_class &&
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element.find(".zephyr_instance").text() === zephyr_instance);
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});
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}
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function show_all_messages() {
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current_view_predicate = home_view;
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get_all_zephyr_rows().show();
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scroll_to_selected();
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$("#narrowbox").hide();
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$("#show_all_messages").attr("disabled", "disabled");
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$("#currently_narrowed_to").html("");
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}
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function newline2br(content) {
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return content.replace(/\n/g, '<br />');
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}
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function update_autocomplete() {
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class_list.sort();
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instance_list.sort();
|
|
people_list.sort();
|
|
|
|
$( "#class" ).autocomplete({
|
|
source: class_list
|
|
});
|
|
$( "#instance" ).autocomplete({
|
|
source: instance_list
|
|
});
|
|
$( "#recipient" ).autocomplete({
|
|
source: people_list
|
|
});
|
|
}
|
|
|
|
function add_message(index, zephyr) {
|
|
last_received = Math.max(last_received, zephyr.id);
|
|
|
|
if (zephyr.type === 'class') {
|
|
zephyr.is_class = true;
|
|
if ($.inArray(zephyr.display_recipient, class_list) === -1) {
|
|
class_list.push(zephyr.display_recipient);
|
|
update_autocomplete();
|
|
}
|
|
if ($.inArray(zephyr.instance, instance_list) === -1) {
|
|
instance_list.push(zephyr.instance);
|
|
update_autocomplete();
|
|
}
|
|
} else if (zephyr.type === "huddle") {
|
|
zephyr.is_huddle = true;
|
|
} else {
|
|
zephyr.is_personal = true;
|
|
|
|
if (zephyr.display_recipient !== username &&
|
|
$.inArray(zephyr.display_recipient, people_list) === -1) {
|
|
people_list.push(zephyr.display_recipient);
|
|
update_autocomplete();
|
|
}
|
|
if (zephyr.sender !== username &&
|
|
$.inArray(zephyr.sender, people_list) === -1) {
|
|
people_list.push(zephyr.sender);
|
|
update_autocomplete();
|
|
}
|
|
}
|
|
zephyr.html_content = newline2br(zephyr.content);
|
|
|
|
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();
|
|
|
|
var new_tr = $('<tr />').attr('id', zephyr.id).addClass('zephyr_row');
|
|
$('#table').append(new_tr);
|
|
new_tr.append(ich.zephyr(zephyr));
|
|
apply_view(new_tr);
|
|
}
|
|
|
|
$(function () {
|
|
$(initial_zephyr_array).each(add_message);
|
|
select_zephyr(initial_pointer);
|
|
get_updates_longpoll();
|
|
});
|
|
|
|
function clear_compose_box() {
|
|
$("#zephyr_compose").find('input[type=text], textarea').val('');
|
|
}
|
|
|
|
var longpoll_failures = 0;
|
|
function get_updates_longpoll() {
|
|
console.log(new Date() + ': longpoll started');
|
|
$.ajax({
|
|
type: 'POST',
|
|
url: 'get_updates_longpoll',
|
|
data: { last_received: last_received },
|
|
dataType: 'json',
|
|
timeout: 10*60*1000, // 10 minutes in ms
|
|
success: function (data) {
|
|
console.log(new Date() + ': longpoll success');
|
|
longpoll_failures = 0;
|
|
$('#connection-error').hide();
|
|
|
|
if (data && data.zephyrs) {
|
|
$.each(data.zephyrs, add_message);
|
|
for (i in data.zephyrs) {
|
|
console.log(data.zephyrs[i]);
|
|
console.log(data.zephyrs[i].id);
|
|
zephyr_dict[data.zephyrs[i].id] = data.zephyrs[i];
|
|
}
|
|
}
|
|
setTimeout(get_updates_longpoll, 0);
|
|
},
|
|
error: function (xhr, error_type, exn) {
|
|
if (error_type === 'timeout') {
|
|
// Retry indefinitely on timeout.
|
|
console.log(new Date() + ': longpoll timed out');
|
|
longpoll_failures = 0;
|
|
$('#connection-error').hide();
|
|
} else {
|
|
console.log(new Date() + ': longpoll failed with ' + error_type +
|
|
' (' + longpoll_failures + ' failures)');
|
|
longpoll_failures += 1;
|
|
}
|
|
|
|
if (longpoll_failures >= 5) {
|
|
$('#connection-error').show();
|
|
} else {
|
|
$('#connection-error').hide();
|
|
}
|
|
|
|
var retry_sec = Math.min(90, Math.exp(longpoll_failures/2));
|
|
console.log(new Date() + ': longpoll retrying in ' + retry_sec + ' seconds');
|
|
setTimeout(get_updates_longpoll, retry_sec*1000);
|
|
}
|
|
});
|
|
}
|
|
|
|
$(function () {
|
|
update_autocomplete();
|
|
$('.button-slide').click(show_compose);
|
|
});
|