Drupal 6 JavaScript and jQuery - Ebook-Cours.com

Every button is passed through this theme function. Together, all of the buttons
are handed over to the Drupal.theme.prototype.buttonBar() function for
additional theming.
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Chapter 8
The buttonBar() theme function
The Drupal.theme.prototype.buttonBar() theme is also very straightforward.
It's job is to take an array of buttons and combine them into a single button bar.
Since more than one button bar may exist on a page, each button bar needs to
have its own ID.
Here's the theme:
Drupal.theme.prototype.buttonBar = function (buttons, id) {
var buttonBar = $('')
.attr('id', id);
jQuery.each(buttons, function (i, item) {
buttonBar.append(item);
});
return buttonBar.parent().html();
}
First, the new button bar jQuery object is created and the ID is appended.
Next, we loop through each of the items in the buttons array and append each one
to the button bar.
Finally, the button bar is converted to an HTML string and returned. It is then
inserted by our main behavior, Drupal.behaviors.editor(), into the appropriate
place in the DOM.
We have made it through our largest project. Although we began with an existing
project, there has been a substantial amount of information to cover. However, we
have created a second module. A module tied closely to server-generated content.
A last question
There is a question that might arise in regard to this last project. Why involve the
server in the process the way that we did? Why not simply create the buttons in
JavaScript to begin with?
The point of this project was to exhibit how data could be passed from the server.
However, if we wanted to delve into a little more PHP, we could derive even more
from server integration. We could, for example, use the Forms API (FAPI) to create
an administration form, which would allow system administrators to select the
buttons that should appear on a form, or even define their own buttons.
This material is copyright and is licensed for the sole use by Richard Ostheimer on 18th June 2009
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