/
prototype.socialshareprivacy.js
403 lines (353 loc) · 21.9 KB
/
prototype.socialshareprivacy.js
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/*
* jquery.socialshareprivacy.js | 2 Klicks fuer mehr Datenschutz
*
* http://www.heise.de/extras/socialshareprivacy/
* http://www.heise.de/ct/artikel/2-Klicks-fuer-mehr-Datenschutz-1333879.html
*
* Copyright (c) 2011 Hilko Holweg, Sebastian Hilbig, Nicolas Heiringhoff, Juergen Schmidt,
* Heise Zeitschriften Verlag GmbH & Co. KG, http://www.heise.de
*
* is released under the MIT License http://www.opensource.org/licenses/mit-license.php
*
* Spread the word, link to us if you can.
*/
Object.extend(Prototype.Browser, {
Version : (navigator.userAgent.toLowerCase().match( /.+(?:rv|it|ra|ie)[\/: ]([\d.]+)/ ) || [])[1]
});
if(!String.prototype.trim) {
String.prototype.trim = function () {
return this.replace(/^\s+|\s+$/g,'');
};
}
socialSharePrivacy = function(){
/*
* helper functions
*/
// abbreviate at last blank before length and add "\u2026" (horizontal ellipsis)
function abbreviateText(text, length) {
var abbreviated = decodeURIComponent(text);
if (abbreviated.length <= length) {
return text;
}
var lastWhitespaceIndex = abbreviated.substring(0, length - 1).lastIndexOf(' ');
abbreviated = encodeURIComponent(abbreviated.substring(0, lastWhitespaceIndex)) + "\u2026";
return abbreviated;
}
// returns content of <meta name="" content=""> tags or '' if empty/non existant
function getMeta(name) {
var metaContent = $$('meta[name="' + name + '"]')[0];
if (metaContent) {
metaContent = metaContent.readAttribute('content');
}
return metaContent || '';
}
// create tweet text from content of <meta name="DC.title"> and <meta name="DC.creator">
// fallback to content of <title> tag
function getTweetText() {
var title = getMeta('DC.title');
var creator = getMeta('DC.creator');
if (title.length > 0 && creator.length > 0) {
title += ' - ' + creator;
} else {
title = $$('title')[0].innerHTML;
}
return encodeURIComponent(title);
}
// build URI from rel="canonical" or document.location
function getURI() {
var uri = document.location.href;
var canonical = $$("link[rel=canonical]")[0];
if (canonical) {
canonical = canonical.readAttribute("href")
if (canonical && canonical.length > 0) {
if (canonical.indexOf("http") < 0) {
canonical = document.location.protocol + "//" + document.location.host + canonical;
}
uri = canonical;
}
}
return uri;
}
function cookieSet(name, value, days, path, domain) {
var expires = new Date();
expires.setTime(expires.getTime() + (days * 24 * 60 * 60 * 1000));
document.cookie = name + '=' + value + '; expires=' + expires.toUTCString() + '; path=' + path + '; domain=' + domain;
}
function cookieDel(name, value, path, domain) {
var expires = new Date();
expires.setTime(expires.getTime() - 100);
document.cookie = name + '=' + value + '; expires=' + expires.toUTCString() + '; path=' + path + '; domain=' + domain;
}
function init(settings) {
var defaults = {
'services' : {
'facebook' : {
'status' : 'on',
'dummy_img' : '/assets/style/socialshareprivacy/images/dummy_facebook.png',
'txt_info' : '2 Klicks für mehr Datenschutz: Erst wenn Sie hier klicken, wird der Button aktiv und Sie können Ihre Empfehlung an Facebook senden. Schon beim Aktivieren werden Daten an Dritte übertragen – siehe <em>i</em>.',
'txt_fb_off' : 'nicht mit Facebook verbunden',
'txt_fb_on' : 'mit Facebook verbunden',
'perma_option' : 'on',
'display_name' : 'Facebook',
'referrer_track' : '',
'language' : 'de_DE',
'action' : 'recommend'
},
'twitter' : {
'status' : 'on',
'dummy_img' : '/assets/style/socialshareprivacy/images/dummy_twitter.png',
'txt_info' : '2 Klicks für mehr Datenschutz: Erst wenn Sie hier klicken, wird der Button aktiv und Sie können Ihre Empfehlung an Twitter senden. Schon beim Aktivieren werden Daten an Dritte übertragen – siehe <em>i</em>.',
'txt_twitter_off' : 'nicht mit Twitter verbunden',
'txt_twitter_on' : 'mit Twitter verbunden',
'perma_option' : 'on',
'display_name' : 'Twitter',
'referrer_track' : '',
'tweet_text' : getTweetText,
'language' : 'en'
},
'gplus' : {
'status' : 'on',
'dummy_img' : '/assets/style/socialshareprivacy/images/dummy_gplus.png',
'txt_info' : '2 Klicks für mehr Datenschutz: Erst wenn Sie hier klicken, wird der Button aktiv und Sie können Ihre Empfehlung an Google+ senden. Schon beim Aktivieren werden Daten an Dritte übertragen – siehe <em>i</em>.',
'txt_gplus_off' : 'nicht mit Google+ verbunden',
'txt_gplus_on' : 'mit Google+ verbunden',
'perma_option' : 'on',
'display_name' : 'Google+',
'referrer_track' : '',
'language' : 'de'
}
},
'info_link' : 'http://www.heise.de/ct/artikel/2-Klicks-fuer-mehr-Datenschutz-1333879.html',
'txt_help' : 'Wenn Sie diese Felder durch einen Klick aktivieren, werden Informationen an Facebook, Twitter oder Google in die USA übertragen und unter Umständen auch dort gespeichert. Näheres erfahren Sie durch einen Klick auf das <em>i</em>.',
'settings_perma' : 'Dauerhaft aktivieren und Datenüber­tragung zustimmen:',
'cookie_path' : '/',
'cookie_domain' : document.location.host,
'cookie_expires' : '365',
'css_path' : '/assets/socialshareprivacy/socialshareprivacy.css',
'uri' : getURI,
'id' : 'social'
};
// Standardwerte des Plug-Ings mit den vom User angegebenen Optionen ueberschreiben
var options = Object.extend(Object.extend({ },defaults), settings || {});
var container = $(options.id);
if(!container) {
return false;
}
var facebook_on = (options.services.facebook.status === 'on');
var twitter_on = (options.services.twitter.status === 'on');
var gplus_on = (options.services.gplus.status === 'on');
// check if at least one service is "on"
if (!facebook_on && !twitter_on && !gplus_on) {
return;
}
// insert stylesheet into document and prepend target element
if (options.css_path.length > 0) {
// IE fix (noetig fuer IE < 9 - wird hier aber fuer alle IE gemacht)
if (document.createStyleSheet) {
document.createStyleSheet(options.css_path);
} else {
$$('head')[0].insert({'bottom':'<link rel="stylesheet" type="text/css" href="' + options.css_path + '" />'});
}
}
container.insert({'top':'<ul class="social_share_privacy_area"></ul>'});
var context = container.select('ul.social_share_privacy_area')[0];
// canonical uri that will be shared
var uri = options.uri;
if (typeof uri === 'function') {
uri = uri(context);
}
//
// Facebook
//
if (facebook_on) {
var fb_enc_uri = encodeURIComponent(uri + options.services.facebook.referrer_track);
var fb_code = '<iframe src="http://www.facebook.com/plugins/like.php?locale=' + options.services.facebook.language + '&href=' + fb_enc_uri + '&send=false&layout=button_count&width=120&show_faces=false&action=' + options.services.facebook.action + '&colorscheme=light&font&height=21" scrolling="no" frameborder="0" style="border:none; overflow:hidden; width:145px; height:21px;" allowTransparency="true"></iframe>';
var fb_dummy_btn = '<img src="' + options.services.facebook.dummy_img + '" alt="Facebook "Like"-Dummy" class="fb_like_privacy_dummy" />';
context.insert({'bottom':'<li class="facebook help_info"><span class="info">' + options.services.facebook.txt_info + '</span><span class="switch off">' + options.services.facebook.txt_fb_off + '</span><div class="fb_like dummy_btn">' + fb_dummy_btn + '</div></li>'});
var container_fb = context.select('li.facebook')[0];
function initFB() {
if (container_fb.down('span.switch').hasClassName('off')) {
container_fb.addClassName('info_off');
container_fb.down('span.switch').addClassName('on').removeClassName('off').update(options.services.facebook.txt_fb_on);
container_fb.down('img.fb_like_privacy_dummy').replace(fb_code);
} else {
container_fb.removeClassName('info_off');
container_fb.down('span.switch').addClassName('off').removeClassName('on').update(options.services.facebook.txt_fb_off);
container_fb.down('.fb_like').update(fb_dummy_btn);
}
}
context.select('li.facebook div.fb_like img.fb_like_privacy_dummy,li.facebook span.switch')[0].on('click', initFB);
}
//
// Twitter
//
if (twitter_on) {
var text = options.services.twitter.tweet_text;
if (typeof text === 'function') {
text = text();
}
// 120 is the max character count left after twitters automatic url shortening with t.co
text = abbreviateText(text, '120');
var twitter_enc_uri = encodeURIComponent(uri + options.services.twitter.referrer_track);
var twitter_count_url = encodeURIComponent(uri);
var twitter_code = '<iframe allowtransparency="true" frameborder="0" scrolling="no" src="http://platform.twitter.com/widgets/tweet_button.html?url=' + twitter_enc_uri + '&counturl=' + twitter_count_url + '&text=' + text + '&count=horizontal&lang=' + options.services.twitter.language + '" style="width:130px; height:25px;"></iframe>';
var twitter_dummy_btn = '<img src="' + options.services.twitter.dummy_img + '" alt=""Tweet this"-Dummy" class="tweet_this_dummy" />';
context.insert({'bottom':'<li class="twitter help_info"><span class="info">' + options.services.twitter.txt_info + '</span><span class="switch off">' + options.services.twitter.txt_twitter_off + '</span><div class="tweet dummy_btn">' + twitter_dummy_btn + '</div></li>'});
var container_tw = context.select('li.twitter')[0];
function initTwitter() {
if (container_tw.down('span.switch').hasClassName('off')) {
container_tw.addClassName('info_off');
container_tw.down('span.switch').addClassName('on').removeClassName('off').update(options.services.twitter.txt_twitter_on);
container_tw.down('img.tweet_this_dummy').replace(twitter_code);
} else {
container_tw.removeClassName('info_off');
container_tw.down('span.switch').addClassName('off').removeClassName('on').update(options.services.twitter.txt_twitter_off);
container_tw.down('.tweet').update(twitter_dummy_btn);
}
}
context.select('li.twitter div.tweet img,li.twitter span.switch')[0].on('click', initTwitter);
}
//
// Google+
//
if (gplus_on) {
// fuer G+ wird die URL nicht encoded, da das zu einem Fehler fuehrt
var gplus_uri = uri + options.services.gplus.referrer_track;
// we use the Google+ "asynchronous" code, standard code is flaky if inserted into dom after load
var gplus_code = '<div class="g-plusone" data-size="medium" data-href="' + gplus_uri + '"></div><script type="text/javascript">window.___gcfg = {lang: "' + options.services.gplus.language + '"}; (function() { var po = document.createElement("script"); po.type = "text/javascript"; po.async = true; po.src = "https://apis.google.com/js/plusone.js"; var s = document.getElementsByTagName("script")[0]; s.parentNode.insertBefore(po, s); })(); </script>';
var gplus_dummy_btn = '<img src="' + options.services.gplus.dummy_img + '" alt=""Google+1"-Dummy" class="gplus_one_dummy" />';
context.insert({'bottom':'<li class="gplus help_info"><span class="info">' + options.services.gplus.txt_info + '</span><span class="switch off">' + options.services.gplus.txt_gplus_off + '</span><div class="gplusone dummy_btn">' + gplus_dummy_btn + '</div></li>'});
var container_gplus = context.select('li.gplus')[0];
function initGplus() {
if (container_gplus.down('span.switch').hasClassName('off')) {
container_gplus.addClassName('info_off');
container_gplus.down('span.switch').addClassName('on').removeClassName('off').update(options.services.gplus.txt_gplus_on);
container_gplus.down('img.gplus_one_dummy').replace(gplus_code);
} else {
container_gplus.removeClassName('info_off');
container_gplus.down('span.switch').addClassName('off').removeClassName('on').update(options.services.gplus.txt_gplus_off);
container_gplus.down('.gplusone').update(gplus_dummy_btn);
}
}
context.select('li.gplus div.gplusone img,li.gplus span.switch')[0].on('click', initGplus);
}
//
// Der Info/Settings-Bereich wird eingebunden
//
context.insert({'bottom':'<li class="settings_info"><div class="settings_info_menu off perma_option_off"><a href="' + options.info_link + '"><span class="help_info icon"><span class="info">' + options.txt_help + '</span></span></a></div></li>'});
// Info-Overlays mit leichter Verzoegerung einblenden
context.select('.help_info:not(.info_off)').each(function(el){
el.on('mouseenter', '.help_info', function (event, element) {
var info_wrapper = element;
var timeout_id = window.setTimeout(function () { info_wrapper.addClassName('display'); }, 500);
info_wrapper.timeout_id = timeout_id;
});
});
context.select('.help_info:not(.info_off)').each(function(el){
el.on('mouseleave', '.help_info', function (event, element) {
var timeout_id = element.timeout_id;
window.clearTimeout(timeout_id);
if (element.hasClassName('display')) {
element.removeClassName('display');
}
});
});
var facebook_perma = (options.services.facebook.perma_option === 'on');
var twitter_perma = (options.services.twitter.perma_option === 'on');
var gplus_perma = (options.services.gplus.perma_option === 'on');
// Menue zum dauerhaften Einblenden der aktiven Dienste via Cookie einbinden
// Die IE7 wird hier ausgenommen, da er kein JSON kann und die Cookies hier ueber JSON-Struktur abgebildet werden
if (((facebook_on && facebook_perma)
|| (twitter_on && twitter_perma)
|| (gplus_on && gplus_perma))
&& (!Prototype.Browser.IE || (Prototype.Browser.IE && Prototype.Browser.Version > 7.0))) {
// Cookies abrufen
var cookie_list = document.cookie.split(';');
var cookies = '{';
var i = 0;
for (; i < cookie_list.length; i += 1) {
var foo = cookie_list[i].split('=');
cookies += '"' + foo[0].trim() + '":"' + foo[1].trim() + '"';
if (i < cookie_list.length - 1) {
cookies += ',';
}
}
cookies += '}';
cookies = JSON.parse(cookies);
// Container definieren
var container_settings_info = context.select('li.settings_info')[0];
// Klasse entfernen, die das i-Icon alleine formatiert, da Perma-Optionen eingeblendet werden
container_settings_info.down('.settings_info_menu').removeClassName('perma_option_off');
// Perma-Optionen-Icon (.settings) und Formular (noch versteckt) einbinden
container_settings_info.down('.settings_info_menu').insert({'bottom':'<span class="settings">Einstellungen</span><form><fieldset><legend>' + options.settings_perma + '</legend></fieldset></form>'});
// Die Dienste mit <input> und <label>, sowie checked-Status laut Cookie, schreiben
var checked = ' checked="checked"';
if (facebook_on && facebook_perma) {
var perma_status_facebook = cookies.socialSharePrivacy_facebook === 'perma_on' ? checked : '';
container_settings_info.down('form fieldset').insert({'bottom':
'<input type="checkbox" name="perma_status_facebook" id="perma_status_facebook"'
+ perma_status_facebook + ' /><label for="perma_status_facebook">'
+ options.services.facebook.display_name + '</label>'
});
}
if (twitter_on && twitter_perma) {
var perma_status_twitter = cookies.socialSharePrivacy_twitter === 'perma_on' ? checked : '';
container_settings_info.down('form fieldset').insert({'bottom':
'<input type="checkbox" name="perma_status_twitter" id="perma_status_twitter"'
+ perma_status_twitter + ' /><label for="perma_status_twitter">'
+ options.services.twitter.display_name + '</label>'
});
}
if (gplus_on && gplus_perma) {
var perma_status_gplus = cookies.socialSharePrivacy_gplus === 'perma_on' ? checked : '';
container_settings_info.down('form fieldset').insert({'bottom':
'<input type="checkbox" name="perma_status_gplus" id="perma_status_gplus"'
+ perma_status_gplus + ' /><label for="perma_status_gplus">'
+ options.services.gplus.display_name + '</label>'
});
}
// Cursor auf Pointer setzen fuer das Zahnrad
container_settings_info.down('span.settings').setStyle({'cursor':'pointer'});
// Einstellungs-Menue bei mouseover ein-/ausblenden
container_settings_info.down('span.settings').on('mouseenter', '.settings_info_menu', function (event, element) {
var info_wrapper = container_settings_info.down('.settings_info_menu');
var timeout_id2 = window.setTimeout(function () { info_wrapper.removeClassName('off').addClassName('on'); }, 500);
info_wrapper.timeout_id2 = timeout_id2;
});
container_settings_info.down('.settings_info_menu').on('mouseleave', '.settings_info_menu', function (event, element) {
var info_wrapper = container_settings_info.down('.settings_info_menu');
var timeout_id2 = info_wrapper.timeout_id2;
window.clearTimeout(timeout_id2);
info_wrapper.removeClassName('on').addClassName('off');
});
// Klick-Interaktion auf <input> um Dienste dauerhaft ein- oder auszuschalten (Cookie wird gesetzt oder geloescht)
container_settings_info.select('fieldset input').each(function(el){
el.on('click', 'input', function (event, element) {
var click = element.id;
var service = click.substr(click.lastIndexOf('_') + 1, click.length);
var cookie_name = 'socialSharePrivacy_' + service;
if ($$('#' + element.id + ':checked').length) {
cookieSet(cookie_name, 'perma_on', options.cookie_expires, options.cookie_path, options.cookie_domain);
context.select('form fieldset label[for=' + click + ']')[0].addClass('checked');
} else {
cookieDel(cookie_name, 'perma_on', options.cookie_path, options.cookie_domain);
context.select('form fieldset label[for=' + click + ']')[0].removeClass('checked');
}
});
});
// Dienste automatisch einbinden, wenn entsprechendes Cookie vorhanden ist
if (facebook_on && facebook_perma && cookies.socialSharePrivacy_facebook === 'perma_on') {
initFB();
}
if (twitter_on && twitter_perma && cookies.socialSharePrivacy_twitter === 'perma_on') {
initTwitter();
}
if (gplus_on && gplus_perma && cookies.socialSharePrivacy_gplus === 'perma_on') {
initGplus();
}
}
}
return{
init:init
}
}();