Preventing Double Click on Link in List

Question

Hello folks,
APEX 4.1
I'm supporting an application right now (which I didn't build I should add), which contains a navigation list entry which triggers an insert into a table (via a before header process fired by a request value which is set when the link is clicked.
I've had a look through the forum's search function for references to "links", "clicks", "double clicks" and "Disabled" and came up with lots of suggestions regarding disabling a button and links in reports, but nothing for links from navigation lists:
e.g. {thread:id=9405085}
Note that some of the example suggest using the javascript pseudo-protocol. I want to avoid that method at all costs.
Rather than verbosely explain the problem, I've set up a demo page on apex.oracle.com to demonstrate it:
Workspace: JC_DEMO
Username: DEMO_USER
password: demo
the pages in question are 9999 and 10000.
(p.s. I knocked this example up as fast as I could - the app hasn't been done to my usual standards! :-) )

Answer 1

Okay I've solved this, or at least I've provided a solution to this particular problem on my "real" app - will amend the test case accordingly in due course but thought I'd share it on this thread anyway.
1) List Template: I took a copy of the existing List template and edited it. Under the "Sub List Entry" section, I amended both the "Sub List Template Current" and "Sub List Template Noncurrent" entries to the following:
<li><a class="#A02#" href="#LINK#">#TEXT#</a></li>In other words, I added a reference to "User Attribute No.2" (#A02#). The reason I used A02 is due to having already used A01 already for something else. Don't be too concerned about this.
2) List: I amended the "List Template" of my list to point at the amended template from step 1. Note also that my list is referenced in a list region on page Zero.
3) List Entry: I amended the list entry I wanted to disable double-clicks, Adding the following text to the 2nd entry in the "User Defined Attributes" section:
single_clickFrom step 1, you should note that this has the effect of adding the class "single_click" to the list entry. "single_click" is not referenced in any of my CSSs incidentally.
4) Page Ready Javascript: On Page Zero, I have a "Before Footer" region called "Page Ready Javascript", into which I put javascript that I want executed on page ready. The basic template for this region is as follows:
<script>
   try{
      $(function() {
      /* code you want to execute */
   catch(e){
     /* error catching code */
</script>Within the page ready function (starting with '$'), I have the following code:
$(".single_click").click( function(){
    window.location = $(this).attr('href');
    $(this).unbind('click'); /* do this because .click adds to the existing click event */
    $(this).click( function(){
       return false;
    return false;
  });Note that I'm using the "single_click" class as my jquery selector. The result of all of this is that, if you click on the relevant link in my navigation list, no matter how many times you do, it will only request the page once.
Already I can see a few things I'm not happy about but its at least a reasonable starting point. Comments/critiques welcome.