LinkSubmit renders overly verbose JavaScript
--------------------------------------------
Key: TAPESTRY-742
URL: http://issues.apache.org/jira/browse/TAPESTRY-742
Project: Tapestry
Type: Improvement
Components: Framework
Versions: 4.0
Reporter: Chris Conrad
The LinkSubmit component currently renders a JavaScript function for every
LinkSubmit on the page. This is problematic for me because I have a page which
could have over 100 LinkSubmits on it (3 LinkSubmits per item with up to 50
items per page). The current JavaScript function which is rendered looks like:
function onclick_LinkSubmit_0()
{
var form = Tapestry.find('Form');
if (form.events.onsubmit_handler())
{
Tapestry.find('LinkSubmit_0').value = "T";
form.onsubmit = null;
form.submit();
}
}
The LinkSubmit component could, however, add a static JavaScript file which
contains a single function which looks like:
function onclick_LinkSubmit(form, link)
{
var form = Tapestry.find(form);
if (form.events.onsubmit_handler())
{
Tapestry.find(link).value = "T";
form.onsubmit = null;
form.submit();
}
}
The values of 'form' and 'link' can be determined at script processing time and
the function can be executed by creating a URL which look like:
<a href="javascript:onclick_LinkSubmit('Form', 'LinkSubmit_0');">Do
Something</a>
This will substantially reduce the amount of JavaScript sent to the browser on
a page which includes many LinkSubmits.
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