You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
334 lines
8.6 KiB
JavaScript
334 lines
8.6 KiB
JavaScript
"use strict";
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/* global define, config, templates, app, ajaxify, socket, translator */
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define(['composer', 'forum/pagination', 'share', 'navigator'], function(composer, pagination, share, navigator) {
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var Category = {},
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loadingMoreTopics = false;
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$(window).on('action:ajaxify.start', function(ev, data) {
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if(data.url.indexOf('category') !== 0) {
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navigator.hide();
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}
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});
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Category.init = function() {
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var cid = ajaxify.variables.get('category_id');
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app.enterRoom('category_' + cid);
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share.addShareHandlers(ajaxify.variables.get('category_name'));
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$('#new_post').on('click', function () {
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composer.newTopic(cid);
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});
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ajaxify.register_events([
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'event:new_topic'
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]);
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socket.on('event:new_topic', Category.onNewTopic);
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enableInfiniteLoading();
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if (!config.usePagination) {
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navigator.init('#topics-container > .category-item', ajaxify.variables.get('topic_count'));
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}
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$('#topics-container').on('click', '.topic-title', function() {
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var clickedTid = $(this).parents('li.category-item[data-tid]').attr('data-tid');
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$('#topics-container li.category-item').each(function(index, el) {
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if($(el).offset().top - $(window).scrollTop() > 0) {
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localStorage.setItem('category:bookmark', $(el).attr('data-tid'));
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localStorage.setItem('category:bookmark:clicked', clickedTid);
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return false;
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}
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});
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});
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};
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$(window).on('action:popstate', function(ev, data) {
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if(data.url.indexOf('category/') === 0) {
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var bookmark = localStorage.getItem('category:bookmark');
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var clicked = localStorage.getItem('category:bookmark:clicked');
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if (bookmark) {
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if(config.usePagination) {
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socket.emit('topics.getTidPage', bookmark, function(err, page) {
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if(err) {
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return;
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}
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if(parseInt(page, 10) !== pagination.currentPage) {
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pagination.loadPage(page);
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} else {
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Category.scrollToTopic(bookmark, clicked, 400);
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}
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});
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} else {
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socket.emit('topics.getTidIndex', bookmark, function(err, index) {
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if(err) {
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return;
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}
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if(index === 0) {
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Category.highlightTopic(clicked);
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return;
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}
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if (index < 0) {
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index = 0;
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}
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$('#topics-container').empty();
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loadingMoreTopics = false;
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Category.loadMoreTopics(ajaxify.variables.get('category_id'), index, function() {
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Category.scrollToTopic(bookmark, clicked, 0);
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});
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});
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}
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}
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}
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});
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Category.highlightTopic = function(tid) {
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var highlight = $('#topics-container li.category-item[data-tid="' + tid + '"]');
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if(highlight.length && !highlight.hasClass('highlight')) {
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highlight.addClass('highlight');
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setTimeout(function() {
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highlight.removeClass('highlight');
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}, 5000);
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}
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};
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Category.scrollToTopic = function(tid, clickedTid, duration, offset) {
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if(!tid) {
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return;
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}
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if(!offset) {
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offset = 0;
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}
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if($('#topics-container li.category-item[data-tid="' + tid + '"]').length) {
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var cid = ajaxify.variables.get('category_id');
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var scrollTo = $('#topics-container li.category-item[data-tid="' + tid + '"]');
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if (cid && scrollTo.length) {
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$('html, body').animate({
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scrollTop: (scrollTo.offset().top - $('#header-menu').height() - offset) + 'px'
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}, duration !== undefined ? duration : 400, function() {
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Category.highlightTopic(clickedTid);
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navigator.update();
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});
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}
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}
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};
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function enableInfiniteLoading() {
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if(!config.usePagination) {
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app.enableInfiniteLoading(function(direction) {
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if(!loadingMoreTopics && $('#topics-container').children().length) {
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var after = 0,
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offset = 0,
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el = null;
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if(direction > 0) {
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el = $('#topics-container .category-item[data-tid]').last();
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after = parseInt(el.attr('data-index'), 10) + 1;
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} else {
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el = $('#topics-container .category-item[data-tid]').first();
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after = parseInt(el.attr('data-index'), 10);
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if(isNaN(after)){
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after = 0;
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}
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after -= config.topicsPerPage;
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if(after < 0) {
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after = 0;
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}
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offset = el.offset().top - $('#header-menu').offset().top + $('#header-menu').height();
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}
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Category.loadMoreTopics(ajaxify.variables.get('category_id'), after, function() {
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if(direction < 0 && el) {
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Category.scrollToTopic(el.attr('data-tid'), null, 0, offset);
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}
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});
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}
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});
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} else {
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pagination.init(ajaxify.variables.get('currentPage'), ajaxify.variables.get('pageCount'));
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}
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}
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Category.onNewTopic = function(data) {
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$(window).trigger('filter:categories.new_topic', data);
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ajaxify.loadTemplate('category', function(categoryTemplate) {
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var html = templates.parse(templates.getBlock(categoryTemplate, 'topics'), {topics: [data]});
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translator.translate(html, function(translatedHTML) {
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var topic = $(translatedHTML),
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container = $('#topics-container'),
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topics = $('#topics-container').children('.category-item'),
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numTopics = topics.length;
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$('#topics-container, .category-sidebar').removeClass('hidden');
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var noTopicsWarning = $('#category-no-topics');
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if (noTopicsWarning.length) {
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noTopicsWarning.remove();
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ajaxify.widgets.render('category', window.location.pathname.slice(1));
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}
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if (numTopics > 0) {
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for (var x = 0; x < numTopics; x++) {
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if ($(topics[x]).find('.fa-thumb-tack').length) {
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if(x === numTopics - 1) {
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topic.insertAfter(topics[x]);
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}
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continue;
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}
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topic.insertBefore(topics[x]);
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break;
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}
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} else {
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container.append(topic);
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}
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topic.hide().fadeIn('slow');
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socket.emit('categories.getPageCount', ajaxify.variables.get('category_id'), function(err, newPageCount) {
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pagination.recreatePaginationLinks(newPageCount);
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});
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topic.find('span.timeago').timeago();
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app.createUserTooltips();
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updateTopicCount();
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$(window).trigger('action:categories.new_topic.loaded');
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});
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});
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};
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function updateTopicCount() {
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socket.emit('categories.getTopicCount', ajaxify.variables.get('category_id'), function(err, topicCount) {
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if(err) {
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return app.alertError(err.message);
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}
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navigator.setCount(topicCount);
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});
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}
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Category.onTopicsLoaded = function(topics, callback) {
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if(!topics || !topics.length) {
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return;
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}
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function removeAlreadyAddedTopics() {
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topics = topics.filter(function(topic) {
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return $('#topics-container li[data-tid="' + topic.tid +'"]').length === 0;
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});
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}
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var after = null,
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before = null;
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function findInsertionPoint() {
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if (!$('#topics-container .category-item[data-tid]').length) {
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return;
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}
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var last = $('#topics-container .category-item[data-tid]').last();
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var lastIndex = last.attr('data-index');
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var firstIndex = topics[topics.length - 1].index;
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if (firstIndex > lastIndex) {
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after = last;
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} else {
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before = $('#topics-container .category-item[data-tid]').first();
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}
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}
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removeAlreadyAddedTopics();
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if(!topics.length) {
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return;
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}
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findInsertionPoint();
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ajaxify.loadTemplate('category', function(categoryTemplate) {
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var html = templates.parse(templates.getBlock(categoryTemplate, 'topics'), {topics: topics});
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translator.translate(html, function(translatedHTML) {
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var container = $('#topics-container'),
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html = $(translatedHTML);
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$('#topics-container, .category-sidebar').removeClass('hidden');
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$('#category-no-topics').remove();
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if(config.usePagination) {
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container.empty().append(html);
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} else {
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if(after) {
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html.insertAfter(after);
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} else if(before) {
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html.insertBefore(before);
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} else {
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container.append(html);
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}
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}
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html.find('span.timeago').timeago();
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app.createUserTooltips();
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utils.makeNumbersHumanReadable(html.find('.human-readable-number'));
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if (typeof callback === 'function') {
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callback(topics);
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}
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});
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});
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};
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Category.loadMoreTopics = function(cid, after, callback) {
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if (loadingMoreTopics || !$('#topics-container').length) {
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return;
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}
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if(after === 0 && $('#topics-container li.category-item[data-index="0"]').length) {
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return;
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}
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$(window).trigger('action:categories.loading');
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loadingMoreTopics = true;
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socket.emit('categories.loadMore', {
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cid: cid,
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after: after
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}, function (err, data) {
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loadingMoreTopics = false;
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if(err) {
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return app.alertError(err.message);
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}
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if (data && data.topics.length) {
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Category.onTopicsLoaded(data.topics, callback);
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$('#topics-container').attr('data-nextstart', data.nextStart);
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} else {
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if (typeof callback === 'function') {
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callback(data.topics);
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}
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}
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$(window).trigger('action:categories.loaded');
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});
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};
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return Category;
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}); |