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123 lines
3.8 KiB
123 lines
3.8 KiB
<?php |
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/** |
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* @file |
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* Defines functions used when viewing metadata displays on Islandora objects. |
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*/ |
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/** |
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* Retrieves the metadata display markup for an Islandora object. |
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* |
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* @param AbstractObject $object |
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* An AbstractObject representing an object within Fedora. |
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* |
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* @return string |
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* Markup to be rendered for display on Islandora object pages. |
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*/ |
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function islandora_retrieve_metadata_markup(AbstractObject $object) { |
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$viewers = module_invoke_all('islandora_metadata_display_info'); |
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$viewer = variable_get('islandora_metadata_display', 'dublin_core'); |
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if (isset($viewers[$viewer]['callback'])) { |
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return call_user_func($viewers[$viewer]['callback'], $object); |
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} |
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else { |
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return ''; |
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} |
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} |
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/** |
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* Form used for choosing which default metadata display to use for viewing. |
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* |
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* @param array $form |
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* An array representing a Drupal form. |
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* @param array $form_state |
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* An array containing the Drupal form state. |
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* |
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* @return array |
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* An array representing the metadata display viewer form. |
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*/ |
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function islandora_metadata_display_form($form, $form_state) { |
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module_load_include('inc', 'islandora', 'includes/solution_packs.inc'); |
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$form = array(); |
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$defined_displays = module_invoke_all('islandora_metadata_display_info'); |
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if (!empty($defined_displays)) { |
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$no_viewer = array(); |
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$no_viewer['none'] = array( |
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'label' => t('None'), |
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'description' => t("Don't show any metadata for displaying"), |
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); |
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$viewers = array_merge_recursive($no_viewer, $defined_displays); |
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$form['viewers'] = array( |
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'#type' => 'item', |
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'#title' => t('Select a viewer'), |
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'#description' => t('Preferred metadata display for Islandora. These may be provided by third-party modules.'), |
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'#tree' => TRUE, |
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'#theme' => 'islandora_viewers_table', |
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); |
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foreach ($viewers as $name => $profile) { |
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$options[$name] = ''; |
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$form['viewers']['name'][$name] = array( |
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'#type' => 'hidden', |
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'#value' => $name, |
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); |
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$form['viewers']['label'][$name] = array( |
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'#type' => 'item', |
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'#markup' => $profile['label'], |
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); |
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$form['viewers']['description'][$name] = array( |
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'#type' => 'item', |
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'#markup' => $profile['description'], |
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); |
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$form['viewers']['configuration'][$name] = array( |
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'#type' => 'item', |
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'#markup' => (isset($profile['configuration']) AND $profile['configuration'] != '') ? l(t('configure'), $profile['configuration']) : '', |
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); |
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} |
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$form['viewers']['default'] = array( |
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'#type' => 'radios', |
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'#options' => isset($options) ? $options : array(), |
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'#default_value' => variable_get('islandora_metadata_display', 'dublin_core'), |
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); |
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} |
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else { |
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$form['viewers']['no_viewers'] = array( |
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'#markup' => t('No viewers detected.'), |
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); |
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} |
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$form['submit'] = array( |
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'#type' => 'submit', |
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'#value' => t('Save configuration'), |
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); |
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return $form; |
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} |
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/** |
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* Submit handler for the metadata display form which sets the default viewer. |
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* |
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* @param array $form |
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* An array representing a Drupal form. |
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* @param array $form_state |
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* An array containing the Drupal form state. |
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*/ |
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function islandora_metadata_display_form_submit($form, $form_state) { |
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variable_set('islandora_metadata_display', $form_state['values']['viewers']['default']); |
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drupal_set_message(t('The configuration options have been saved.')); |
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} |
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/** |
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* Metadata display callback for rendering Dublin Core metadata. |
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* |
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* @param AbstractObject $object |
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* An AbstractObject representing an object within Fedora. |
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* |
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* @return string |
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* Markup representing the rendered metadata from Dublin Core. |
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*/ |
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function islandora_metadata_display_callback(AbstractObject $object) { |
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$elements = array( |
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'islandora_object' => $object, |
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); |
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return theme('islandora_dublin_core_display', $elements); |
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}
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