2 * (C) Copyright 2012 juplo (http://juplo.de/).
4 * All rights reserved. This program and the accompanying materials
5 * are made available under the terms of the GNU Lesser General Public License
6 * (LGPL) version 3.0 which accompanies this distribution, and is available at
7 * http://www.gnu.org/licenses/lgpl-3.0.html
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
19 * See http://coding.smashingmagazine.com/2011/10/11/essential-jquery-plugin-patterns/
20 * for detailed explanations for the applied best practices.
22 * The semicolon guides our code for poorly written concatenated scripts.
24 ;(function( $, window, document, undefined ) {
28 settings, _options, domain, id, node,
41 * Configuration-Options for jQuery.openx
43 * Since the domain-name of the ad-server is the only required parameter,
44 * jQuery.openx for convenience can be configured with only that one
45 * parameter. For example: "jQuery.openx('openx.example.org');". If more
46 * configuration-options are needed, they must be specified as an object.
47 * For example: "jQuery.openx({'server': 'openx.example.org', ... });".
52 * server: string Name of the server, without protocol or port. For
53 * example "openx.example.org". This option is
55 * protocol: Optional parameter.
56 * http: All connections to the ad-server are made via HTTP.
57 * https: All connections to the ad-server are made via HTTPS.
58 * If empty, document.location.protocol will be used.
59 * http_port: number Port-Number for HTTP-connections to the ad-server
60 * (only needed, when it is not the default-value 80).
61 * https_port: Port-Number for HTTPS-connections to the ad-server
62 * (only needed, when it is not the default-value 443).
65 * Seldom needed special Server-Settings (these parameters are only needed,
66 * if the default delivery-configration of the OpenX-Server was changed):
68 * path: string Path to delivery-scripts. DEFAULT: "/www/delivery".
69 * fl: string Flash-Include-Script. DEFAULT: "fl.js".
72 * Delivery-Options (for details and explanations see the see:
73 * http://www.openx.com/docs/2.8/userguide/single%20page%20call):
75 * block: 1 Don't show the banner again on the same page.
76 * 0 A Banner might be shown multiple times on the same
78 * blockcampaign: 1 Don't show a banner from the same campaign again on
80 * 0 A Banner from the same campaign might be shown
81 * muliple times on the same page (DEFAULT).
82 * target: string The value is addes as the HTML TARGET attribute in
83 * the ad code. Examples for sensible values: "_blank",
85 * withtext: 1 Show text below banner. Enter this text in the
86 * Banner properties page.
87 * 0 Ignore the text-field from the banner-properties
89 * charset: string Charset used, when delivering the banner-codes.
90 * If empty, the charset is guessed by OpenX. Examples
91 * for sensible values: "UTF-8", "ISO-8859-1".
96 * selector: string A selector for selecting the DOM-elements, that
97 * should display ad-banners. DEFAULT: ".oa".
98 * See: http://api.jquery.com/category/selectors/
99 * min_prefix: string Prefix for the encoding of the minmal width as
100 * CSS-classname. DEFAULT: "min_".
101 * max_prefix: string Prefix for the encoding of the maximal width as
102 * CSS-classname. DEFAULT: "max_".
104 $.openx = function( options ) {
108 console.error('jQuery.openx was already initialized!');
109 console.log('Configured options: ', _options);
114 /** Enable convenient-configuration */
115 if (typeof(options) == 'string')
116 options = { 'server': options };
120 if (!options.server) {
122 console.error('Required option "server" is missing!');
123 console.log('options: ', options);
130 'protocol': document.location.protocol,
131 'delivery': '/www/delivery',
134 'min_prefix': 'min_',
135 'max_prefix': 'max_',
141 domain = settings.protocol + '//';
142 domain += settings.server;
143 if (settings.protocol === 'http:' && settings.http_port)
144 domain += ':' + settings.http_port;
145 if (settings.protocol === 'https:' && settings.https_port)
146 domain += ':' + settings.https_port;
149 * Without this option, jQuery appends an timestamp to every URL, that
150 * is fetched via $.getScript(). This can mess up badly written
151 * third-party-ad-scripts, that assume that the called URL's are not
154 $.ajaxSetup({ 'cache': true });
157 * jQuery.openx only works with "named zones", because it does not know,
158 * which zones belong to which website. For mor informations about
160 * http://www.openx.com/docs/2.8/userguide/single%20page%20call
162 * For convenience, jQuery.openx only fetches banners, that are really
163 * included in the actual page. This way, you can configure jQuery.openx
164 * with all zones available for your website - for example in a central
165 * template - and does not have to worry about performance penalties due
166 * to unnecessarily fetched banners.
168 for(name in OA_zones) {
169 $(settings.selector).each(function() {
174 min = new RegExp('^' + settings.min_prefix + '([0-9]+)$'),
175 max = new RegExp('^' + settings.max_prefix + '([0-9]+)$'),
177 if (this.id === name) {
178 id = 'oa_' + ++count;
181 max_width[id] = Number.MAX_VALUE;
182 classes = this.className.split(/\s+/);
183 for (i=0; i<classes.length; i++) {
184 match = min.exec(classes[i]);
186 min_width[id] = match[1];
187 match = max.exec(classes[i]);
189 max_width[id] = match[1];
191 rendered[id] = false;
196 /** Set initial window-width */
197 width = $(document).width();
199 /** Fetch the JavaScript for Flash and schedule the initial fetch */
200 $.getScript(domain + settings.delivery + '/' + settings.fl, fetch_ads);
204 function fetch_ads() {
206 var name, src = domain + settings.delivery + '/spc.php';
208 /** Order banners for all zones that were found on the page */
211 if (width >= min_width[id] && width <= max_width[id]) {
213 src += escape(id + '=' + OA_zones[slots[id].id] + "|");
217 src += '&nz=1'; // << We want to fetch named zones!
220 * These are some additions to the URL of spc.php, that are originally
223 src += '&r=' + Math.floor(Math.random()*99999999);
224 if (window.location) src += "&loc=" + escape(window.location);
225 if (document.referrer) src += "&referer=" + escape(document.referrer);
227 /** Add the configured options */
228 if (settings.block === 1)
230 if (settings.blockcampaign === 1)
231 src += '&blockcampaign=1';
233 src += '&target=' + settings.target;
234 if (settings.withtext === 1)
235 src += '&withtext=1';
236 if (settings.charset)
237 src += '&charset=' + settings.charset;
239 /** Add the source-code - if present */
240 if (typeof OA_source !== 'undefined')
241 src += "&source=" + escape(OA_source);
243 /** Fetch data from OpenX and schedule the render-preparation */
244 $.getScript(src, init_ads);
248 function init_ads() {
251 for (i=0; i<queue.length; i++) {
253 if (typeof(OA_output[id]) != 'undefined' && OA_output[id] != '')
258 document.write = document_write;
259 document.writeln = document_write;
265 function render_ads() {
267 while (queue.length > 0) {
269 var result, src, inline;
276 // node.append(id + ": " + node.attr('class'));
279 * If output was added via document.write(), this output must be
280 * rendered before other banner-code from the OpenX-server is rendered!
284 while ((result = /<script/i.exec(OA_output[id])) != null) {
285 node.append(OA_output[id].slice(0,result.index));
286 /** Strip all text before "<script" from OA_output[id] */
287 OA_output[id] = OA_output[id].slice(result.index,OA_output[id].length);
288 result = /^([^>]*)>([\s\S]*?)<\\?\/script>/i.exec(OA_output[id]);
289 if (result == null) {
290 /** Invalid syntax in delivered banner-code: ignoring the rest of this banner-code! */
291 // alert(OA_output[id]);
295 /** Remember iinline-code, if present */
296 src = result[1] + ' ' // << simplifies the following regular expression: the string ends with a space in any case, so that the src-URL cannot be followed by the end of the string emediately!
298 /** Strip all text up to and including "</script>" from OA_output[id] */
299 OA_output[id] = OA_output[id].slice(result[0].length,OA_output[id].length);
300 result = /src\s*=\s*['"]?([^'"]*)['"]?\s/i.exec(src);
301 if (result == null) {
302 /** script-tag with inline-code: execute inline-code! */
303 result = /^\s*<.*$/m.exec(inline);
304 if (result != null) {
305 /** Remove leading HTML-comments, because IE will stumble otherwise */
306 inline = inline.slice(result[0].length,inline.length);
308 $.globalEval(inline);
309 insert_output(); // << The executed inline-code might have called document.write()!
312 /** script-tag with src-URL! */
313 if (OA_output[id].length > 0)
314 /** The banner-code was not rendered completely yet! */
316 /** Load the script and halt all work until the script is loaded and executed... */
317 $.getScript(result[1], render_ads); // << jQuery.getScript() generates onload-Handler for _all_ browsers ;)
323 node.append(OA_output[id]);
327 /** All entries from OA_output were rendered */
333 /** This function is used to overwrite document.write and document.writeln */
334 function document_write() {
339 for (var i=0; i<arguments.length; i++)
340 output.push(arguments[i]);
344 * Re-Add the last banner-code to the working-queue, because included
345 * scripts had added markup via document.write(), which is not
347 * Otherwise the added markup would be falsely rendered together with
348 * the markup from the following banner-code.
355 * This function prepends the collected output from calls to
356 * document_write() to the current banner-code.
358 function insert_output() {
360 if (output.length > 0) {
361 output.push(OA_output[id]);
363 for (i=0; i<output.length; i++)
364 OA_output[id] += output[i];
370 })( jQuery, window, document );
372 var OA_output = {}; // << Needed, because IE will complain loudly otherwise!