Adding loadOnce to Ajax delegator.

anutron · May 2, 2013 · 781a763 · 781a763
1 parent 46554f9
commit 781a763
Show file tree

Hide file tree

Showing 2 changed files with 6 additions and 0 deletions.
diff --git a/Docs/Delegators/Delegator.Ajax.md b/Docs/Delegators/Delegator.Ajax.md
@@ -23,6 +23,7 @@ The above example will load the response from the links HREF (`get/list/item.php
 * action - (*string*; optional) - the action to take on the target. Any of the options described below.
 * method - (*string*; optional) - the HTML verb to use; defaults to `get`.
 * filter - (*string*; optional) - a selector to run against the response whose response will be used to update the DOM instead of the full response.
+* loadOnce - (*boolean*; optional) - if `true`, the link will only load content into its target once. Subsequent clicks are ignored (a console warning is displayed).
 
 ### Actions
 

diff --git a/Source/Delegators/Delegator.Ajax.js b/Source/Delegators/Delegator.Ajax.js
@@ -15,6 +15,10 @@ Delegator.register('click', 'Ajax', {
 		method: 'get'
 	},
 	handler: function(event, link, api){
+		if (api.getAs(Boolean, 'loadOnce') === true && link.retrieve('ajaxLoaded')){
+			api.warn('already loaded link via ajax. `once` option is true, so exiting quietly.');
+			return;
+		}
 		var target,
 			action = api.get('action'),
 			selector = api.get('target');
@@ -73,5 +77,6 @@ Delegator.register('click', 'Ajax', {
 				}
 			})
 		).send();
+		link.store('ajaxLoaded', true);
 	}
 });