<?php
// $Id: virtual_site_theme.module,v 1.4 2008-03-08 16:46:38 fokke Exp $

/**
* Implementation of hook_feature_info().
*/
function virtual_site_theme_feature_info() {
  return array(
    'virtual_site_theme_feature' => array(
      'name' => t('Theme'),
      'description' => t('Select a different theme and/or change template-specific settings. After choosing or changing the theme, first save the form and then return to set any theme-specific settings.'),
    ),
	);
}

function virtual_site_theme_feature_form($context) {
	global $custom_theme, $conf;
	
	$themes		= system_theme_data();
	$options	= array('' => t('(skip this feature)'));
	
	foreach ($themes as $key => $data) {
		
		if ($data->status) {
			$options[$key] = $data->info['name'];
		}
	}
	
	$form['theme'] = array(
		'#title' => t('Theme'),
		'#description' => t('The theme to use for this site.'),
		'#type' => 'select',
		'#options' => $options,
		'#default_value' => $context['theme'],
	);
	
	if ($context['theme']) {
		
		// Copy default settings on first use
		if (!is_array($context['settings']) || !count($context['settings'])) {
			$context['settings'] = theme_get_settings($context['theme']);
		}

		// Handle uploads of the logo and favicon here, because system_theme_settings() will otherwise overwrite the default
		$directory_path = file_directory_path().'/theme';
	  file_check_directory($directory_path, FILE_CREATE_DIRECTORY, 'file_directory_path');
		
		if ($file = file_save_upload('logo_upload', array('file_validate_is_image' => array()))) {
		  $parts = pathinfo($file->filename);
		  $filename = $directory_path.'/vs'.$context['sid'].'_logo.'. $parts['extension'];
		
		  if (file_copy($file, $filename, FILE_EXISTS_REPLACE)) {
		    $_POST['default_logo'] = 0;
		    $_POST['logo_path'] = $file->filepath;
		    $_POST['toggle_logo'] = 1;
		    
		    // If we don't unset the path system_theme_settings() will just redo all this and still overwrite.
		    unset($file->filepath);
		  }
		}
		
		if ($file = file_save_upload('favicon_upload')) {
		  $parts = pathinfo($file->filename);
		  $filename = $directory_path.'/vs'.$context['sid'].'_favicon.'. $parts['extension'];
		
		  // If we don't move but copy the file, system_theme_settings() will just redo all this.
		  if (file_copy($file, $filename, FILE_EXISTS_REPLACE)) {
		    $_POST['default_favicon'] = 0;
		    $_POST['favicon_path'] = $file->filepath;
		    $_POST['toggle_favicon'] = 1;
		    
		    // If we don't unset the path system_theme_settings() will just redo all this and still overwrite.
		    unset($file->filepath);
		  }
		}

		// Temporarily relace the current settings by the ones of the virtual site.
		$var = 'theme_'.$context['theme'].'_settings';
		$orig = $conf[$var];
		$conf[$var] = $context['settings'];

		// Retrieve theme settings form
		include_once('modules/system/system.admin.inc');
		$form_state = array('values' => $context);
		$form = array_merge($form, system_theme_settings($form_state, $context['theme']));
		
		// Restore current settings
		$conf[$var] = $orig;
		
		// Unset unwanted form parts and errors
		unset($form['buttons'], $form['#submit'], $form['#theme']);
		unset($_SESSION['messages']);
	}
	
	return $form;
}

function virtual_site_theme_feature_submit($form, &$form_state) {
	$values = array(
		'theme' => $form_state['values']['theme'],
		'settings' => array(),
	);
	
	if ($values['theme'] == $form['theme']['#default_value']) {
		$values['settings'] = $form_state['values'];
		unset($values['settings']['theme'],$values['settings']['var'], $values['settings']['op'], $values['settings']['submit'], $values['settings']['form_build_id'], $values['settings']['form_token'], $values['settings']['form_id']);
	}

	return $values;
}

function virtual_site_theme_feature($context) {
	global $custom_theme, $conf;
	
	if ($context['theme']) {
		$custom_theme = $context['theme'];
	}
		
	if (is_array($context['settings']) && count($context['settings'])) {
		$var = 'theme_'.$context['theme'].'_settings';
		$conf[$var] = $context['settings'];
	}
}

?>