diff options
Diffstat (limited to 'usr/local')
-rw-r--r-- | usr/local/www/javascript/global.js | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/usr/local/www/javascript/global.js b/usr/local/www/javascript/global.js new file mode 100644 index 0000000..418f7ef --- /dev/null +++ b/usr/local/www/javascript/global.js @@ -0,0 +1,40 @@ +var AjaxQueue = { + batchSize: 1, //No.of simultaneous AJAX requests allowed, Default : 1 + urlQueue: [], //Request URLs will be pushed into this array + elementsQueue: [], //Element IDs of elements to be updated on completion of a request ( as in Ajax.Updater ) + optionsQueue: [], //Request options will be pushed into this array + setBatchSize: function(bSize){ //Method to set a different batch size. Recommended: Set batchSize before making requests + this.batchSize = bSize; + }, + push: function(url, options, elementID){ //Push the request in the queue. elementID is optional and required only for Ajax.Updater calls + this.urlQueue.push(url); + this.optionsQueue.push(options); + if(elementID!=null){ + this.elementsQueue.push(elementID); + } else { + this.elementsQueue.push("NOTSPECIFIED"); + } + + this._processNext(); + }, + _processNext: function() { // Method for processing the requests in the queue. Private method. Don't call it explicitly + if(Ajax.activeRequestCount < AjaxQueue.batchSize) // Check if the currently processing request count is less than batch size + { + if(AjaxQueue.elementsQueue.first()=="NOTSPECIFIED") { //Check if an elementID was specified + // Call Ajax.Request if no ElementID specified + //Call Ajax.Request on the first item in the queue and remove it from the queue + new Ajax.Request(AjaxQueue.urlQueue.shift(), AjaxQueue.optionsQueue.shift()); + + var junk = AjaxQueue.elementsQueue.shift(); + } else { + // Call Ajax.Updater if an ElementID was specified. + //Call Ajax.Updater on the first item in the queue and remove it from the queue + new Ajax.Updater(AjaxQueue.elementsQueue.shift(), AjaxQueue.urlQueue.shift(), AjaxQueue.optionsQueue.shift()); + } + } + } +}; +Ajax.Responders.register({ + //Call AjaxQueue._processNext on completion ( success / failure) of any AJAX call. + onComplete: AjaxQueue._processNext +}); |