645 lines
22 KiB
JavaScript
645 lines
22 KiB
JavaScript
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/*
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* StatusNet - a distributed open-source microblogging tool
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* Copyright (C) 2009-2011, StatusNet, Inc.
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*
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* Add a notice encoded as JSON into the current timeline
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* @category Plugin
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* @package StatusNet
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* @author Evan Prodromou <evan@status.net>
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* @author Sarven Capadisli <csarven@status.net>
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* @copyright 2009-2011 StatusNet, Inc.
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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* @link http://status.net/
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*/
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/**
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* This is the UI portion of the Realtime plugin base class, handling
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* queueing up and displaying of notices that have been received through
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* other code in one of the subclassed plugin implementations such as
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* Meteor or Orbited.
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*
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* Notices are passed in as JSON objects formatted per the Twitter-compatible
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* API.
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*
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* @todo Currently we duplicate a lot of formatting and layout code from
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* the PHP side of StatusNet, which makes it very difficult to maintain
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* this package. Internationalization as well as newer features such
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* as location data, customized source links for OStatus profiles,
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* and image thumbnails are not yet supported in Realtime yet because
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* they have not been implemented here.
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*/
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RealtimeUpdate = {
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_userid: 0,
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_showurl: '',
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_keepaliveurl: '',
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_closeurl: '',
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_updatecounter: 0,
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_maxnotices: 50,
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_windowhasfocus: true,
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_documenttitle: '',
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_paused:false,
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_queuedNotices:[],
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/**
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* Initialize the Realtime plugin UI on a page with a timeline view.
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*
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* This function is called from a JS fragment inserted by the PHP side
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* of the Realtime plugin, and provides us with base information
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* needed to build a near-replica of StatusNet's NoticeListItem output.
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*
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* Once the UI is initialized, a plugin subclass will need to actually
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* feed data into the RealtimeUpdate object!
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*
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* @param {int} userid: local profile ID of the currently logged-in user
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* @param {String} showurl: URL for shownotice action, used when fetching formatting notices.
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* This URL contains a stub value of 0000000000 which will be replaced with the notice ID.
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*
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* @access public
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*/
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init: function(userid, showurl)
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{
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RealtimeUpdate._userid = userid;
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RealtimeUpdate._showurl = showurl;
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RealtimeUpdate._documenttitle = document.title;
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$(window).bind('focus', function() {
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RealtimeUpdate._windowhasfocus = true;
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// Clear the counter on the window title when we focus in.
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RealtimeUpdate._updatecounter = 0;
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RealtimeUpdate.removeWindowCounter();
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});
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$(window).bind('blur', function() {
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$('#notices_primary .notice').removeClass('mark-top');
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$('#notices_primary .notice:first').addClass('mark-top');
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// While we're in the background, received messages will increment
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// a counter that we put on the window title. This will cause some
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// browsers to also flash or mark the tab or window title bar until
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// you seek attention (eg Firefox 4 pinned app tabs).
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RealtimeUpdate._windowhasfocus = false;
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return false;
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});
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},
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/**
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* Accept a notice in a Twitter-API JSON style and either show it
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* or queue it up, depending on whether the realtime display is
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* active.
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*
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* The meat of a Realtime plugin subclass is to provide a substrate
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* transport to receive data and shove it into this function. :)
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*
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* Note that the JSON data is extended from the standard API return
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* with additional fields added by RealtimePlugin's PHP code.
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*
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* @param {Object} data: extended JSON API-formatted notice
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*
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* @access public
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*/
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receive: function(data)
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{
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if (RealtimeUpdate.isNoticeVisible(data.id)) {
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// Probably posted by the user in this window, and so already
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// shown by the AJAX form handler. Ignore it.
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return;
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}
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if (RealtimeUpdate._paused === false) {
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RealtimeUpdate.purgeLastNoticeItem();
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RealtimeUpdate.insertNoticeItem(data);
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}
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else {
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RealtimeUpdate._queuedNotices.push(data);
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RealtimeUpdate.updateQueuedCounter();
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}
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RealtimeUpdate.updateWindowCounter();
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},
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/**
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* Add a visible representation of the given notice at the top of
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* the current timeline.
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*
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* If the notice is already in the timeline, nothing will be added.
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*
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* @param {Object} data: extended JSON API-formatted notice
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*
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* @fixme while core UI JS code is used to activate the AJAX UI controls,
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* the actual production of HTML (in makeNoticeItem and its subs)
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* duplicates core code without plugin hook points or i18n support.
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*
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* @access private
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*/
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insertNoticeItem: function(data) {
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// Don't add it if it already exists
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if (RealtimeUpdate.isNoticeVisible(data.id)) {
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return;
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}
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RealtimeUpdate.makeNoticeItem(data, function(noticeItem) {
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// Check again in case it got shown while we were waiting for data...
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if (RealtimeUpdate.isNoticeVisible(data.id)) {
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return;
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}
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var noticeItemID = $(noticeItem).attr('id');
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var list = $("#notices_primary .notices:first")
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var prepend = true;
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var threaded = list.hasClass('threaded-notices');
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if (threaded && data.in_reply_to_status_id) {
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// aho!
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var parent = $('#notice-' + data.in_reply_to_status_id);
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if (parent.length == 0) {
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// @todo fetch the original, insert it, and finish the rest
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} else {
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// Check the parent notice to make sure it's not a reply itself.
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// If so, use it's parent as the parent.
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var parentList = parent.closest('.notices');
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if (parentList.hasClass('threaded-replies')) {
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parent = parentList.closest('.notice');
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}
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list = parent.find('.threaded-replies');
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if (list.length == 0) {
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list = $('<ul class="notices threaded-replies xoxo"></ul>');
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parent.append(list);
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SN.U.NoticeInlineReplyPlaceholder(parent);
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}
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prepend = false;
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}
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}
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var newNotice = $(noticeItem);
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if (prepend) {
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list.prepend(newNotice);
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} else {
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var placeholder = list.find('li.notice-reply-placeholder')
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if (placeholder.length > 0) {
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newNotice.insertBefore(placeholder)
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} else {
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newNotice.appendTo(list);
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}
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}
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newNotice.css({display:"none"}).fadeIn(1000);
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SN.U.NoticeReplyTo($('#'+noticeItemID));
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SN.U.NoticeWithAttachment($('#'+noticeItemID));
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});
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},
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/**
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* Check if the given notice is visible in the timeline currently.
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* Used to avoid duplicate processing of notices that have been
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* displayed by other means.
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*
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* @param {number} id: notice ID to check
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*
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* @return boolean
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*
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* @access private
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*/
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isNoticeVisible: function(id) {
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return ($("#notice-"+id).length > 0);
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},
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/**
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* Trims a notice off the end of the timeline if we have more than the
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* maximum number of notices visible.
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*
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* @access private
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*/
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purgeLastNoticeItem: function() {
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if ($('#notices_primary .notice').length > RealtimeUpdate._maxnotices) {
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$("#notices_primary .notice:last").remove();
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}
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},
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/**
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* If the window/tab is in background, increment the counter of newly
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* received notices and append it onto the window title.
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*
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* Has no effect if the window is in foreground.
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*
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* @access private
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*/
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updateWindowCounter: function() {
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if (RealtimeUpdate._windowhasfocus === false) {
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RealtimeUpdate._updatecounter += 1;
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document.title = '('+RealtimeUpdate._updatecounter+') ' + RealtimeUpdate._documenttitle;
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}
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},
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/**
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* Clear the background update counter from the window title.
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*
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* @access private
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*
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* @fixme could interfere with anything else trying similar tricks
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*/
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removeWindowCounter: function() {
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document.title = RealtimeUpdate._documenttitle;
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},
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/**
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* Builds a notice HTML block from JSON API-style data;
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* loads data from server, so runs async.
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*
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* @param {Object} data: extended JSON API-formatted notice
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* @param {function} callback: function(DOMNode) to receive new code
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*
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* @access private
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*/
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makeNoticeItem: function(data, callback)
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{
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var url = RealtimeUpdate._showurl.replace('0000000000', data.id);
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$.get(url, {ajax: 1}, function(data, textStatus, xhr) {
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var notice = $('li.notice:first', data);
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if (notice.length) {
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var node = document._importNode(notice[0], true);
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callback(node);
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}
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});
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},
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/**
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* Creates a favorite button.
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*
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* @param {number} id: notice ID to work with
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* @param {String} session_key: session token for form CSRF protection
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* @return {String} HTML fragment
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*
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* @fixme this replicates core StatusNet code, making maintenance harder
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* @fixme sloppy HTML building (raw concat without escaping)
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* @fixme no i18n support
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*
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* @access private
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*/
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makeFavoriteForm: function(id, session_key)
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{
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var ff;
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ff = "<form id=\"favor-"+id+"\" class=\"form_favor\" method=\"post\" action=\""+RealtimeUpdate._favorurl+"\">"+
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"<fieldset>"+
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"<legend>Favor this notice</legend>"+
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"<input name=\"token\" type=\"hidden\" id=\"token-"+id+"\" value=\""+session_key+"\"/>"+
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"<input name=\"notice\" type=\"hidden\" id=\"notice-n"+id+"\" value=\""+id+"\"/>"+
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"<input type=\"submit\" id=\"favor-submit-"+id+"\" name=\"favor-submit-"+id+"\" class=\"submit\" value=\"Favor\" title=\"Favor this notice\"/>"+
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"</fieldset>"+
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"</form>";
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return ff;
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},
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/**
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* Creates a reply button.
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*
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* @param {number} id: notice ID to work with
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* @param {String} nickname: nick of the user to whom we are replying
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* @return {String} HTML fragment
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*
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* @fixme this replicates core StatusNet code, making maintenance harder
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* @fixme sloppy HTML building (raw concat without escaping)
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* @fixme no i18n support
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*
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* @access private
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*/
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makeReplyLink: function(id, nickname)
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{
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var rl;
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rl = "<a class=\"notice_reply\" href=\""+RealtimeUpdate._replyurl+"?replyto="+nickname+"\" title=\"Reply to this notice\">Reply <span class=\"notice_id\">"+id+"</span></a>";
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return rl;
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},
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/**
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* Creates a repeat button.
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*
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* @param {number} id: notice ID to work with
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* @param {String} session_key: session token for form CSRF protection
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* @return {String} HTML fragment
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*
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* @fixme this replicates core StatusNet code, making maintenance harder
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* @fixme sloppy HTML building (raw concat without escaping)
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* @fixme no i18n support
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*
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* @access private
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*/
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makeRepeatForm: function(id, session_key)
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{
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var rf;
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rf = "<form id=\"repeat-"+id+"\" class=\"form_repeat\" method=\"post\" action=\""+RealtimeUpdate._repeaturl+"\">"+
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"<fieldset>"+
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"<legend>Repeat this notice?</legend>"+
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"<input name=\"token\" type=\"hidden\" id=\"token-"+id+"\" value=\""+session_key+"\"/>"+
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"<input name=\"notice\" type=\"hidden\" id=\"notice-"+id+"\" value=\""+id+"\"/>"+
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"<input type=\"submit\" id=\"repeat-submit-"+id+"\" name=\"repeat-submit-"+id+"\" class=\"submit\" value=\"Yes\" title=\"Repeat this notice\"/>"+
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"</fieldset>"+
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"</form>";
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return rf;
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},
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/**
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* Creates a delete button.
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*
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* @param {number} id: notice ID to create a delete link for
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* @return {String} HTML fragment
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*
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* @fixme this replicates core StatusNet code, making maintenance harder
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* @fixme sloppy HTML building (raw concat without escaping)
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* @fixme no i18n support
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*
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* @access private
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*/
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makeDeleteLink: function(id)
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{
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var dl, delurl;
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delurl = RealtimeUpdate._deleteurl.replace("0000000000", id);
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dl = "<a class=\"notice_delete\" href=\""+delurl+"\" title=\"Delete this notice\">Delete</a>";
|
||
|
|
|
||
|
|
return dl;
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Adds a control widget at the top of the timeline view, containing
|
||
|
|
* pause/play and popup buttons.
|
||
|
|
*
|
||
|
|
* @param {String} url: full URL to the popup window variant of this timeline page
|
||
|
|
* @param {String} timeline: string key for the timeline (eg 'public' or 'evan-all')
|
||
|
|
* @param {String} path: URL to the base directory containing the Realtime plugin,
|
||
|
|
* used to fetch resources if needed.
|
||
|
|
*
|
||
|
|
* @todo timeline and path parameters are unused and probably should be removed.
|
||
|
|
*
|
||
|
|
* @access private
|
||
|
|
*/
|
||
|
|
initActions: function(url, timeline, path, keepaliveurl, closeurl)
|
||
|
|
{
|
||
|
|
$('#notices_primary').prepend('<ul id="realtime_actions"><li id="realtime_playpause"></li><li id="realtime_timeline"></li></ul>');
|
||
|
|
|
||
|
|
RealtimeUpdate._pluginPath = path;
|
||
|
|
RealtimeUpdate._keepaliveurl = keepaliveurl;
|
||
|
|
RealtimeUpdate._closeurl = closeurl;
|
||
|
|
|
||
|
|
|
||
|
|
// On unload, let the server know we're no longer listening
|
||
|
|
$(window).unload(function() {
|
||
|
|
$.ajax({
|
||
|
|
type: 'POST',
|
||
|
|
url: RealtimeUpdate._closeurl});
|
||
|
|
});
|
||
|
|
|
||
|
|
setInterval(function() {
|
||
|
|
$.ajax({
|
||
|
|
type: 'POST',
|
||
|
|
url: RealtimeUpdate._keepaliveurl});
|
||
|
|
|
||
|
|
}, 15 * 60 * 1000 ); // every 15 min; timeout in 30 min
|
||
|
|
|
||
|
|
RealtimeUpdate.initPlayPause();
|
||
|
|
RealtimeUpdate.initAddPopup(url, timeline, RealtimeUpdate._pluginPath);
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Initialize the state of the play/pause controls.
|
||
|
|
*
|
||
|
|
* If the browser supports the localStorage interface, we'll attempt
|
||
|
|
* to retrieve a pause state from there; otherwise we default to paused.
|
||
|
|
*
|
||
|
|
* @access private
|
||
|
|
*/
|
||
|
|
initPlayPause: function()
|
||
|
|
{
|
||
|
|
if (typeof(localStorage) == 'undefined') {
|
||
|
|
RealtimeUpdate.showPause();
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
if (localStorage.getItem('RealtimeUpdate_paused') === 'true') {
|
||
|
|
RealtimeUpdate.showPlay();
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
RealtimeUpdate.showPause();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Switch the realtime UI into paused state.
|
||
|
|
* Uses SN.msg i18n system for the button label and tooltip.
|
||
|
|
*
|
||
|
|
* State will be saved and re-used next time if the browser supports
|
||
|
|
* the localStorage interface (via setPause).
|
||
|
|
*
|
||
|
|
* @access private
|
||
|
|
*/
|
||
|
|
showPause: function()
|
||
|
|
{
|
||
|
|
RealtimeUpdate.setPause(false);
|
||
|
|
RealtimeUpdate.showQueuedNotices();
|
||
|
|
RealtimeUpdate.addNoticesHover();
|
||
|
|
|
||
|
|
$('#realtime_playpause').remove();
|
||
|
|
$('#realtime_actions').prepend('<li id="realtime_playpause"><button id="realtime_pause" class="pause"></button></li>');
|
||
|
|
$('#realtime_pause').text(SN.msg('realtime_pause'))
|
||
|
|
.attr('title', SN.msg('realtime_pause_tooltip'))
|
||
|
|
.bind('click', function() {
|
||
|
|
RealtimeUpdate.removeNoticesHover();
|
||
|
|
RealtimeUpdate.showPlay();
|
||
|
|
return false;
|
||
|
|
});
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Switch the realtime UI into play state.
|
||
|
|
* Uses SN.msg i18n system for the button label and tooltip.
|
||
|
|
*
|
||
|
|
* State will be saved and re-used next time if the browser supports
|
||
|
|
* the localStorage interface (via setPause).
|
||
|
|
*
|
||
|
|
* @access private
|
||
|
|
*/
|
||
|
|
showPlay: function()
|
||
|
|
{
|
||
|
|
RealtimeUpdate.setPause(true);
|
||
|
|
$('#realtime_playpause').remove();
|
||
|
|
$('#realtime_actions').prepend('<li id="realtime_playpause"><span id="queued_counter"></span> <button id="realtime_play" class="play"></button></li>');
|
||
|
|
$('#realtime_play').text(SN.msg('realtime_play'))
|
||
|
|
.attr('title', SN.msg('realtime_play_tooltip'))
|
||
|
|
.bind('click', function() {
|
||
|
|
RealtimeUpdate.showPause();
|
||
|
|
return false;
|
||
|
|
});
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Update the internal pause/play state.
|
||
|
|
* Do not call directly; use showPause() and showPlay().
|
||
|
|
*
|
||
|
|
* State will be saved and re-used next time if the browser supports
|
||
|
|
* the localStorage interface.
|
||
|
|
*
|
||
|
|
* @param {boolean} state: true = paused, false = not paused
|
||
|
|
*
|
||
|
|
* @access private
|
||
|
|
*/
|
||
|
|
setPause: function(state)
|
||
|
|
{
|
||
|
|
RealtimeUpdate._paused = state;
|
||
|
|
if (typeof(localStorage) != 'undefined') {
|
||
|
|
localStorage.setItem('RealtimeUpdate_paused', RealtimeUpdate._paused);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Go through notices we have previously received while paused,
|
||
|
|
* dumping them into the timeline view.
|
||
|
|
*
|
||
|
|
* @fixme long timelines are not trimmed here as they are for things received while not paused
|
||
|
|
*
|
||
|
|
* @access private
|
||
|
|
*/
|
||
|
|
showQueuedNotices: function()
|
||
|
|
{
|
||
|
|
$.each(RealtimeUpdate._queuedNotices, function(i, n) {
|
||
|
|
RealtimeUpdate.insertNoticeItem(n);
|
||
|
|
});
|
||
|
|
|
||
|
|
RealtimeUpdate._queuedNotices = [];
|
||
|
|
|
||
|
|
RealtimeUpdate.removeQueuedCounter();
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Update the Realtime widget control's counter of queued notices to show
|
||
|
|
* the current count. This will be called after receiving and queueing
|
||
|
|
* a notice while paused.
|
||
|
|
*
|
||
|
|
* @access private
|
||
|
|
*/
|
||
|
|
updateQueuedCounter: function()
|
||
|
|
{
|
||
|
|
$('#realtime_playpause #queued_counter').html('('+RealtimeUpdate._queuedNotices.length+')');
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Clear the Realtime widget control's counter of queued notices.
|
||
|
|
*
|
||
|
|
* @access private
|
||
|
|
*/
|
||
|
|
removeQueuedCounter: function()
|
||
|
|
{
|
||
|
|
$('#realtime_playpause #queued_counter').empty();
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set up event handlers on the timeline view to automatically pause
|
||
|
|
* when the mouse is over the timeline, as this indicates the user's
|
||
|
|
* desire to interact with the UI. (Which is hard to do when it's moving!)
|
||
|
|
*
|
||
|
|
* @access private
|
||
|
|
*/
|
||
|
|
addNoticesHover: function()
|
||
|
|
{
|
||
|
|
$('#notices_primary .notices').hover(
|
||
|
|
function() {
|
||
|
|
if (RealtimeUpdate._paused === false) {
|
||
|
|
RealtimeUpdate.showPlay();
|
||
|
|
}
|
||
|
|
},
|
||
|
|
function() {
|
||
|
|
if (RealtimeUpdate._paused === true) {
|
||
|
|
RealtimeUpdate.showPause();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
);
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Tear down event handlers on the timeline view to automatically pause
|
||
|
|
* when the mouse is over the timeline.
|
||
|
|
*
|
||
|
|
* @fixme this appears to remove *ALL* event handlers from the timeline,
|
||
|
|
* which assumes that nobody else is adding any event handlers.
|
||
|
|
* Sloppy -- we should only remove the ones we add.
|
||
|
|
*
|
||
|
|
* @access private
|
||
|
|
*/
|
||
|
|
removeNoticesHover: function()
|
||
|
|
{
|
||
|
|
$('#notices_primary .notices').unbind();
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* UI initialization, to be called from Realtime plugin code on regular
|
||
|
|
* timeline pages.
|
||
|
|
*
|
||
|
|
* Adds a button to the control widget at the top of the timeline view,
|
||
|
|
* allowing creation of a popup window with a more compact real-time
|
||
|
|
* view of the current timeline.
|
||
|
|
*
|
||
|
|
* @param {String} url: full URL to the popup window variant of this timeline page
|
||
|
|
* @param {String} timeline: string key for the timeline (eg 'public' or 'evan-all')
|
||
|
|
* @param {String} path: URL to the base directory containing the Realtime plugin,
|
||
|
|
* used to fetch resources if needed.
|
||
|
|
*
|
||
|
|
* @todo timeline and path parameters are unused and probably should be removed.
|
||
|
|
*
|
||
|
|
* @access public
|
||
|
|
*/
|
||
|
|
initAddPopup: function(url, timeline, path)
|
||
|
|
{
|
||
|
|
$('#realtime_timeline').append('<button id="realtime_popup"></button>');
|
||
|
|
$('#realtime_popup').text(SN.msg('realtime_popup'))
|
||
|
|
.attr('title', SN.msg('realtime_popup_tooltip'))
|
||
|
|
.bind('click', function() {
|
||
|
|
window.open(url,
|
||
|
|
'',
|
||
|
|
'toolbar=no,resizable=yes,scrollbars=yes,status=no,menubar=no,personalbar=no,location=no,width=500,height=550');
|
||
|
|
|
||
|
|
return false;
|
||
|
|
});
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* UI initialization, to be called from Realtime plugin code on popup
|
||
|
|
* compact timeline pages.
|
||
|
|
*
|
||
|
|
* Sets up links in notices to open in a new window.
|
||
|
|
*
|
||
|
|
* @fixme fails to do the same for UI links like context view which will
|
||
|
|
* look bad in the tiny chromeless window.
|
||
|
|
*
|
||
|
|
* @access public
|
||
|
|
*/
|
||
|
|
initPopupWindow: function()
|
||
|
|
{
|
||
|
|
$('.notices .entry-title a, .notices .e-content a').bind('click', function() {
|
||
|
|
window.open(this.href, '');
|
||
|
|
|
||
|
|
return false;
|
||
|
|
});
|
||
|
|
|
||
|
|
$('#showstream .entity_profile').css({'width':'69%'});
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|