web2py_component timeout, issue 576, thanks Alan

applications/examples/static/js/web2py.js

@@ -102,9 +102,51 @@ function web2py_ajax_page(method, action, data, target) {
     });
 }
 
-function web2py_component(action,target) {
-  jQuery(function(){web2py_ajax_page('get',action,null,target);});
-}
+function web2py_component(action, target, timeout, times){
+  jQuery(function(){
+    var element = $("#" + target).get(0);
+    var statement = "$('#" + target + "').get(0).reload();";
+    element.reload = function (){
+        // Continue if times is Infinity or
+        // the times limit is not reached
+        if (this.reload_check()){
+            web2py_ajax_page('get', action, null, target);} }; // reload
+    // Method to check timing limit
+    element.reload_check = function (){
+        if (this.reload_counter == Infinity){return true;}
+        else {
+            if (!isNaN(this.reload_counter)){
+                this.reload_counter -= 1;
+                if (this.reload_counter < 0){
+                    if (!this.run_once){
+                        clearInterval(this.timing);
+                        return false;
+                    }
+                }
+                else{return true;}
+            } }
+            return false;}; // reload check
+    if (!isNaN(timeout)){
+        element.timeout = timeout;
+        element.reload_counter = times;
+        if (times > 1){
+        // Multiple or infinite reload
+        // Run first iteration
+        web2py_ajax_page('get', action, null, target);
+        element.run_once = false;
+        element.timing = setInterval(statement, timeout);
+        element.reload_counter -= 1;
+        }
+        else if (times == 1) {
+        // Run once with timeout
+        element.run_once = true;
+        element.setTimeout = setTimeout;
+        element.timing = setTimeout(statement, timeout);
+        }
+    } else {
+        // run once (no timeout specified)
+        web2py_ajax_page('get', action, null, target);
+    } }); }
 
 function web2py_comet(url,onmessage,onopen,onclose) {
   if ("WebSocket" in window) {