danielebarchiesi@4: <?php
danielebarchiesi@4: 
danielebarchiesi@4: /**
danielebarchiesi@4:  * Implements hook_features_api().
danielebarchiesi@4:  */
danielebarchiesi@4: function image_features_api() {
danielebarchiesi@4:   return array(
danielebarchiesi@4:     'image' => array(
danielebarchiesi@4:       'name' => t('Image styles'),
danielebarchiesi@4:       'feature_source' => TRUE,
danielebarchiesi@4:       'default_hook' => 'image_default_styles',
danielebarchiesi@4:       'alter_hook' => 'image_styles',
danielebarchiesi@4:     )
danielebarchiesi@4:   );
danielebarchiesi@4: }
danielebarchiesi@4: 
danielebarchiesi@4: /**
danielebarchiesi@4:  * Implements hook_features_export_options().
danielebarchiesi@4:  */
danielebarchiesi@4: function image_features_export_options() {
danielebarchiesi@4:   $options = array();
danielebarchiesi@4:   foreach (image_styles() as $name => $style) {
danielebarchiesi@4:     $options[$name] = $style['name'];
danielebarchiesi@4:   }
danielebarchiesi@4:   return $options;
danielebarchiesi@4: }
danielebarchiesi@4: 
danielebarchiesi@4: /**
danielebarchiesi@4:  * Implements hook_features_export().
danielebarchiesi@4:  */
danielebarchiesi@4: function image_features_export($data, &$export, $module_name = '') {
danielebarchiesi@4:   $pipe = array();
danielebarchiesi@4:   $map = features_get_default_map('image');
danielebarchiesi@4:   foreach ($data as $style) {
danielebarchiesi@4:     $export['dependencies']['image'] = 'image';
danielebarchiesi@4:     // If another module provides this style, add it as a dependency
danielebarchiesi@4:     if (isset($map[$style]) && $map[$style] != $module_name) {
danielebarchiesi@4:       $module = $map[$style];
danielebarchiesi@4:       $export['dependencies'][$module] = $module;
danielebarchiesi@4:     }
danielebarchiesi@4:     // Otherwise, export the style
danielebarchiesi@4:     elseif (image_style_load($style)) {
danielebarchiesi@4:       $export['features']['image'][$style] = $style;
danielebarchiesi@4:     }
danielebarchiesi@4:   }
danielebarchiesi@4:   return $pipe;
danielebarchiesi@4: }
danielebarchiesi@4: 
danielebarchiesi@4: /**
danielebarchiesi@4:  * Implements hook_features_export_render().
danielebarchiesi@4:  */
danielebarchiesi@4: function image_features_export_render($module_name, $data, $export = NULL) {
danielebarchiesi@4:   $code = array();
danielebarchiesi@4:   $code[] = '  $styles = array();';
danielebarchiesi@4:   $code[] = '';
danielebarchiesi@4:   foreach ($data as $name) {
danielebarchiesi@4:     if ($style = image_style_load($name)) {
danielebarchiesi@4:       _image_features_style_sanitize($style);
danielebarchiesi@4:       $style_export = features_var_export($style, '  ');
danielebarchiesi@4:       $style_identifier = features_var_export($name);
danielebarchiesi@4:       $code[] = "  // Exported image style: {$name}.";
danielebarchiesi@4:       $code[] = "  \$styles[{$style_identifier}] = {$style_export};";
danielebarchiesi@4:       $code[] = "";
danielebarchiesi@4:     }
danielebarchiesi@4:   }
danielebarchiesi@4:   $code[] = '  return $styles;';
danielebarchiesi@4:   $code = implode("\n", $code);
danielebarchiesi@4:   return array('image_default_styles' => $code);
danielebarchiesi@4: }
danielebarchiesi@4: 
danielebarchiesi@4: /**
danielebarchiesi@4:  * Implements hook_features_revert().
danielebarchiesi@4:  */
danielebarchiesi@4: function image_features_revert($module) {
danielebarchiesi@4:   if ($default_styles = features_get_default('image', $module)) {
danielebarchiesi@4:     foreach (array_keys($default_styles) as $default_style) {
danielebarchiesi@4:       if ($style = image_style_load($default_style)) {
danielebarchiesi@4:         if ($style['storage'] != IMAGE_STORAGE_DEFAULT) {
danielebarchiesi@4:           image_default_style_revert($style);
danielebarchiesi@4:         }
danielebarchiesi@4:       }
danielebarchiesi@4:     }
danielebarchiesi@4:   }
danielebarchiesi@4: }
danielebarchiesi@4: 
danielebarchiesi@4: /**
danielebarchiesi@4:  * Remove unnecessary keys for export.
danielebarchiesi@4:  */
danielebarchiesi@4: function _image_features_style_sanitize(&$style, $child = FALSE) {
danielebarchiesi@4:   $omit = $child ? array('isid', 'ieid', 'storage') : array('isid', 'ieid', 'storage', 'module');
danielebarchiesi@4:   if (is_array($style)) {
danielebarchiesi@4:     foreach ($style as $k => $v) {
danielebarchiesi@4:       if (in_array($k, $omit, TRUE)) {
danielebarchiesi@4:         unset($style[$k]);
danielebarchiesi@4:       }
danielebarchiesi@4:       else if (is_array($v)) {
danielebarchiesi@4:         _image_features_style_sanitize($style[$k], TRUE);
danielebarchiesi@4:       }
danielebarchiesi@4:     }
danielebarchiesi@4:   }
danielebarchiesi@4: }