Content handler before default filters

msikma

Hi there, I'm new to Vanilla2 and in order to teach myself the ropes I've started working on a simple BBCode parser plugin.

I ran into a problem when writing the function for [img] tags. Normally you'd format the [img] tag like this:

[img]http://link-to-image.com/img.jpg[/img]

The problem is that by BBCode parsing script is performed *after* the regular filters have been applied, so the [img] tag receives an HTML link as the content instead of just a plain text image URI.

Here's my code: http://pastie.org/1407521

<?php if (!defined('APPLICATION')) exit();

$PluginInfo['SaltCode'] = array(
	'Name' => 'SaltCode',
	'Description' => 'Blha blah blah',
	'Version' => '1.0',
	'Author' => 'Michiel Sikma',
	'AuthorEmail' => 'michiel@wedemandhtml.com',
	'AuthorUrl' => 'http://wedemandhtml.com/',
	'License' => 'GNU GPLv2'
);

/*TODO You can set up some options here. */
$options = array(
	/* Convert two 
 tags to  wraps. */
	'br_to_p' => true,

	/* Removes superfluous 
 tags if there are more than two consecutive ones. */
	'trim_br' => false,

	/* Avoid using browser-specific CSS prefixes. */
	'avoid_css_prefix' => false,
);

/* Install the SaltCode class as a singleton. */
Gdn::FactoryInstall('SaltCodeFormatter', 'SaltCode', dirname(__FILE__).DS.'classSaltCode.php', Gdn::FactorySingleton);
Gdn::Factory('SaltCodeFormatter')->Setup('saltcode', $options);

class SaltCodePlugin extends Gdn_Plugin
{
	/**
	 * Format each comment using the SaltCode class.
	 */
	public function DiscussionController_AfterCommentFormat_Handler(&$Sender)
	{
		$Sender->EventArguments['Object']->FormatBody = Gdn::Factory('SaltCodeFormatter')->Filter($Sender->EventArguments['Object']->FormatBody);
	}

	/**
	 * Only performed on enable.
	 */
	public function Setup()
	{
		SaveToConfig('Plugins.SaltCode.Enabled', TRUE);
	}

	/**
	 * Only performed on disable.
	 */
	public function OnDisable()
	{
		SaveToConfig('Plugins.SaltCode.Enabled', FALSE);
	}
}

I would assume that the DiscussionController_AfterCommentFormat_Handler needs to be something else, but what? (I got that function name from another plugin.)

Thanks!

msikma

Okay, I figured out that these events are fired in the discussion/helper_functions.php file of the Vanilla views. From there I was able to find the right event that I needed: BeforeCommentBody

I actually tried that before but it didn't work. The reason, however, was that the FormatBody attribute isn't available in the $Sender->EventArguments['Object'] at that time; it's just Body, which gets copied to FormatBody later.

	public function DiscussionController_BeforeCommentBody_Handler(&$Sender)
	{
		$Sender->EventArguments['Object']->Body = Gdn::Factory('SaltCodeFormatter')->Filter($Sender->EventArguments['Object']->Body);
	}