Minify.module

<?php

class Minify extends WireData implements Module, ConfigurableModule {

	/**
	 * Basic information about module
	 */
	public static function getModuleInfo() {
		return array(
			'title' => 'Minify',
			'summary' => 'Compresses and combines javascript and CSS files for use in templates using the Minify library. Please see the license file included for licensing info.',
			'href' => 'http://processwire.com/talk/topic/1537-minify/',
			'version' => 103,
			'permanent' => false,
			'autoload' => false,
			'singular' => true,
		);
	}

	/**
	 * Default configuration for module
	 *
	 * This is based on Ryan's examples [used also in @apeisa's AdminBar, for instance]
	 */
	static public function getDefaultData() {
		return array(
			'scripts_path' => wire('config')->urls->templates . "scripts/",
			'styles_path' => wire('config')->urls->templates . "styles/",
		);
	}

	/**
	 * Populate the default config data
	 *
	 */
	public function __construct() {
	   foreach(self::getDefaultData() as $key => $value) {
		   $this->$key = $value;
	   }
	}

	/**
	 * Initialize the module and setup hooks
	 */
	public function init() {
		// Not required
	}
	static public function getModuleConfigInputfields(array $data) {

		$templatepath = trim(wire('config')->urls->templates, '/'); // We need to trim off the start and end slashes for the Minify URL
		$rootpath = wire('config')->paths->root;

		$fields = new InputfieldWrapper();
		$modules = Wire::getFuel('modules');

		$default_data = self::getDefaultData();
		$data = array_merge($default_data, $data);
		$scripts_path_exists = $data['scripts_path'] && is_dir($rootpath.$data['scripts_path']);
		$styles_path_exists = $data['styles_path'] && is_dir($rootpath.$data['styles_path']);

		// Path configuration
		$fieldset = $modules->get("InputfieldFieldset");
		$fieldset->label = __("Directory settings");
		if ($scripts_path_exists || $styles_path_exists) $fieldset->collapsed = true;

		$field = $modules->get("InputfieldText");
		$field->name = "scripts_path";
		$field->label = __("Scripts directory");
		$field->value = $data['scripts_path'];
		$field->notes = sprintf(__("Starting from the root of your ProcessWire installation. Example: %s."), $default_data['scripts_path']);
		$field->description = __("In order to minify script files, you need to specify path for your site scripts here.");
		if ($scripts_path_exists) $field->collapsed = true;
		$fieldset->add($field);
		
		$field = $modules->get("InputfieldText");
		$field->name = "styles_path";
		$field->label = ("Styles directory");
		$field->value = $data['styles_path'];
		$field->notes = sprintf(__("Starting from the root of your ProcessWire installation. Example: %s."), $default_data['styles_path']);
		$field->description = __("In order to minify style files, you need to specify path for your site styles here.");
		if ($styles_path_exists) $field->collapsed = true;
		$fieldset->add($field);

		$fields->add($fieldset);

		// Scripts
		if ($scripts_path_exists) {

			$scripts = array();
			$iterator = new RecursiveDirectoryIterator($rootpath.$data['scripts_path']);
			foreach (new RecursiveIteratorIterator($iterator) as $filename => $cur) {
				$filename = str_replace('\\', '/', $filename);
				if (strrpos($filename, '.js') == strlen($filename)-3) {
					$scripts[] = str_replace($rootpath.$data['scripts_path'], '', $filename);
				}
			}
			
			$field = $modules->get("InputfieldAsmSelect");
			$field->attr('name', 'scripts');
			foreach($scripts as $script) {
				$field->addOption($script); 
			}
			$field->label = __("Scripts available for selection");
			$scripts = implode(',', $scripts);
			$field->description = __("Select the .js files from your scripts folder that you wish to minify.");
			$str = "var scriptlist = '';
			$('#' + $(this).parent().attr('id') + ' .asmListItemLabel').each(function(index) {
				var separator = '';
				if (scriptlist != '') {
					separator = ',';
				}
				scriptlist = scriptlist + separator + $(this).html();
			});
			var minString = '<strong style=\"font-weight: bold;\">" . __("Copy and paste this before your </head> tag:") . "</strong><br /><br /><input type=\"text\" style=\"width: 100%;\" value=\"&lt;script type=&quot;text/javascript&quot; src=&quot;&lt;?php echo \$config->urls->siteModules; ?&gt;Minify/min/b=" . trim($data['scripts_path'], '/') . "&amp;f=' + scriptlist + '&quot;&gt;&lt;/script&gt;\" /><br /><br />'
						  + '" . htmlentities(__("Note: Ensure that if you are adding an jQuery-related scripts that you add jQuery to the top of the list before it is called by any other script.")) . "';
			var minStringContainer = $(this).parent().attr('id') + 'Text';
			if ($('#' + minStringContainer).length == 0) {
				$(this).after('<div id=\"' + minStringContainer + '\">' + minString + '</div>');
			} else {
				$('#' + minStringContainer).html(minString);
			}";
			$field->attr('onchange', $str); 
			$fields->append($field);

		}
			
		// Styles
		if ($styles_path_exists) {

			$styles = array();
			$iterator = new RecursiveDirectoryIterator($rootpath.$data['styles_path']);
			foreach (new RecursiveIteratorIterator($iterator) as $filename => $cur) {
				$filename = str_replace('\\', '/', $filename);
				if (strrpos($filename, '.css') == strlen($filename)-4) {
					$styles[] = str_replace($rootpath.$data['styles_path'], '', $filename);
				}
			}
			
			$field = $modules->get("InputfieldAsmSelect");
			$field->attr('name', 'styles');
			foreach($styles as $style) {
				$field->addOption($style); 
			}
			$field->label = __("Stylesheets available for selection");
			$field->description = __("Select the .css files from your styles folder that you wish to minify.");
			$str = "var stylelist = '';
			$('#' + $(this).parent().attr('id') + ' .asmListItemLabel').each(function(index) {
				var separator = '';
				if (stylelist != '') {
					separator = ',';
				}
				stylelist = stylelist + separator + $(this).html();
			});
			var minString = '<strong style=\"font-weight: bold;\">" . __("Copy and paste this before your </head> tag:") . "</strong><br /><br /><input type=\"text\" style=\"width: 100%;\" value=\"&lt;link href=&quot;&lt;?php echo \$config->urls->siteModules; ?&gt;Minify/min/b=" . trim($data['styles_path'], '/') . "&amp;f=' + stylelist + '&quot; rel=&quot;stylesheet&quot; type=&quot;text/css&quot; /&gt;\" />';
			var minStringContainer = $(this).parent().attr('id') + 'Text';
			if ($('#' + minStringContainer).length == 0) {
				$(this).after('<div id=\"' + minStringContainer + '\">' + minString + '</div>');
			} else {
				$('#' + minStringContainer).html(minString);
			}";		
			$field->attr('onchange', $str); 
			$fields->append($field);
			
		}

		return $fields;

	}
}