Magento: How to add the widget button to the WYSIWYG Products Editor - wysiwyg

Question

I want to allow adding the Catalog Product Link widget in the description field of a product (so I can easily link to other products in the description). I've already extended Mage_Catalog_Model_Product by creating a file like:
class mymodule_Catalog_Model_Product extends Mage_Catalog_Model_Product
{
/**
* Add getDescription function that interprets widget or static blocks
* within product descriptions
*/
public function getDescription() {
$processor = Mage::getModel('widget/template_filter');
$html = $processor->filter($this->getData('description'));
return $html;
}
}
Now it works fine if I type something like
{{widget type="catalog/product_widget_link" anchor_text="my text" template="catalog/product/widget/link/link_inline.phtml" id_path="product/1234"}}
into the description field -- it creates a link to the product Id 1234.
But I want to add the actual Catalog Product Link widget button in the WYSIWYG editor for editing a product. The button is already in the CMS editor, but I am missing what I need to modify in order to add this widget to the Admin interface for editing a product. Can someone help me out?

Answer 1

For anybody stumbling across this later on like myself, you can use the cms_wysiwyg_config_prepare event to set this to true.
E.G:
in config.xml
<events>
<cms_wysiwyg_config_prepare>
<observers>
<webtise_widgets>
<class>webtise_widgets/observer</class>
<method>cmsWysiwygConfigPrepare</method>
</webtise_widgets>
</observers>
</cms_wysiwyg_config_prepare>
</events>
In your observer
<?php class Webtise_Widgets_Model_Observer{
public function cmsWysiwygConfigPrepare(Varien_Event_Observer $observer){
$observer->getEvent()->getConfig()->setAddWidgets(true);
}
}

Answer 2

I was able to do this by overriding the core file
app/code/local/Mage/Adminhtml/Block/Catalog/Helper/Form/Wysiwyg/Content.php
and setting
$config['add_widgets'] = true;
Now the widget button shows up in all WYSIWIG editors in the admin interface.