count = 0,
slots = {},
- ads = [];
+ queue = [],
+ ads = [],
+ output = [];
openx.show_ads = function(server, zones) {
var
domain = document.location.protocol == 'https:' ? 'https://' + server + ':8443':'http://' + server,
+ name,
src = domain;
- document.write = document_write;
- document.writeln = document_write;
+ /**
+ * Without this option, jQuery appends an timestamp to every URL, that
+ * is fetched via $.getScript(). This can mess up badly written
+ * third-party-ad-scripts, that assume that the called URL's are not
+ * altered.
+ */
+ $.ajaxSetup({ cache: true });
src += "/www/delivery/spc.php?zones=";
/** Only fetch banners, that are really included in this page */
- $('.oa').each(function() {
- var
- node = $(this),
- name, id;
- for(name in zones) {
+ for(name in zones) {
+ $('.oa').each(function() {
+ var
+ node = $(this),
+ id;
if (node.hasClass(name)) {
id = 'oa_' + ++count;
slots[id] = node;
+ queue.push(id);
src += escape(id + '=' + zones[name] + "|");
}
- }
- });
+ });
+ }
- src += "&nz=1&source=" + escape(OA_source);
- src += "&r=" + Math.floor(Math.random()*99999999);
+ if (typeof OA_source !== 'undefined')
+ src += "&source=" + escape(OA_source);
+ src += "&nz=1&r=" + Math.floor(Math.random()*99999999);
src += "&block=1&charset=UTF-8";
if (window.location) src += "&loc=" + escape(window.location);
function init_ads() {
- for (var id in slots) {
+ var i, id;
+ for (i=0; i<queue.length; i++) {
+ id = queue[i];
if (typeof(OA_output[id]) != 'undefined' && OA_output[id] != '')
ads.push(id);
}
+ document.write = document_write;
+ document.writeln = document_write;
+
render_ads();
}
while (ads.length > 0) {
- id = ads.pop();
+ var result, src, inline, i;
+
+ id = ads.shift();
node = slots[id];
node.slideDown();
// node.append(id + ": " + node.attr('class'));
- var result, src, inline;
+ /**
+ * If output was added via document.write(), this output must be
+ * rendered before other banner-code from the OpenX-server is rendered!
+ */
+ insert_output();
while ((result = /<script/i.exec(OA_output[id])) != null) {
node.append(OA_output[id].slice(0,result.index));
}
else {
/** Remember iinline-code, if present */
- src = result[1]
+ src = result[1] + ' ' // << simplifies the following regular expression: the string ends with a space in any case, so that the src-URL cannot be followed by the end of the string emediately!
inline = result[2];
/** Strip all text up to and including "</script>" from OA_output[id] */
OA_output[id] = OA_output[id].slice(result[0].length,OA_output[id].length);
- result = /src\s*=\s*['"]([^'"]*)['"]/i.exec(src);
+ result = /src\s*=\s*['"]?([^'"]*)['"]?\s/i.exec(src);
if (result == null) {
/** script-tag with inline-code: execute inline-code! */
result = /^\s*<.*$/m.exec(inline);
inline = inline.slice(result[0].length,inline.length);
}
$.globalEval(inline);
+ insert_output(); // << The executed inline-code might have called document.write()!
}
else {
/** script-tag with src-URL! */
- ads.push(id); // << The banner might not be rendered fully, or include more calls to document.write().
+ if (OA_output[id].length > 0)
+ /** The banner-code was not rendered completely yet! */
+ ads.unshift(id);
/** Load the script and halt all work until the script is loaded and executed... */
$.getScript(result[1], render_ads); // << jQuery.getScript() generates onload-Handler for _all_ browsers ;)
return;
node = undefined;
}
+ /** This function is used to overwrite document.write and document.writeln */
function document_write() {
if (id == undefined)
return;
- var
- str = "",
- i;
+ for (var i=0; i<arguments.length; i++)
+ output.push(arguments[i]);
- for (i=0; i < arguments.length; i++)
- str += arguments[i];
+ if (id != ads[0])
+ /**
+ * Re-Add the last banner-code to the working-queue, because included
+ * scripts had added markup via document.write(), which is not
+ * proccessed yet.
+ * Otherwise the added markup would be falsely rendered together with
+ * the markup from the following banner-code.
+ */
+ ads.unshift(id);
+
+ }
- OA_output[id] = str + OA_output[id];
+ /**
+ * This function prepends the collected output from calls to
+ * document_write() to the current banner-code.
+ */
+ function insert_output() {
+
+ if (output.length > 0) {
+ output.push(OA_output[id]);
+ OA_output[id] = "";
+ for (i=0; i<output.length; i++)
+ OA_output[id] += output[i];
+ output = [];
+ }
}