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<?php
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/**
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* @file
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* Allows to create media URI conversion rules.
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*
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* @copyright
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* (C) 2007-2012 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this module are subject to the Mozilla
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* Public License Version 1.1.
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* @see http://www.mozilla.org/MPL/MPL-1.1.html
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*
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* @author
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* - Andreas Kohlbecker <a.kohlbecker@BGBM.org>
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* - Wouter Addink <w.addink@eti.uva.nl> (migration from Drupal 5 to Drupal7)
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*/
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/**
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* Implements hook_menu().
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*/
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function cdm_mediauri_menu() {
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$items = array();
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$items['admin/config/cdm_dataportal/cdm_mediauri'] = array(
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'title' => 'CDM Media URI Conversion',
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'description' => 'Media URI Conversion Rules.',
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'access arguments' => array('administer cdm_dataportal'),
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'page callback' => 'cdm_mediauri_overview',
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'type' => MENU_NORMAL_ITEM,
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'weight' => 20,
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);
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$items['admin/config/cdm_dataportal/cdm_mediauri/list'] = array(
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'title' => 'List',
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'description' => 'Media URI Conversion Rules',
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'access arguments' => array('administer cdm_dataportal'),
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'page callback' => 'cdm_mediauri_overview',
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'weight' => 1,
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'type' => MENU_DEFAULT_LOCAL_TASK,
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);
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$items['admin/config/cdm_dataportal/cdm_mediauri/add'] = array(
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'title' => 'Add Rule',
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'description' => 'Add Media URI Conversion Rule',
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'access arguments' => array('administer cdm_dataportal'),
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'page callback' => 'drupal_get_form',
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'page arguments' => array('cdm_mediauri_rule_add'),
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'weight' => 2,
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'type' => MENU_LOCAL_TASK,
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);
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$items['admin/config/cdm_dataportal/cdm_mediauri/edit'] = array(
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'access arguments' => array('administer cdm_dataportal'),
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'page callback' => 'drupal_get_form',
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'page arguments' => array('cdm_mediauri_rule_edit'),
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'type' => MENU_CALLBACK,
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);
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$items['admin/config/cdm_dataportal/cdm_mediauri/delete'] = array(
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'access arguments' => array('administer cdm_dataportal'),
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'page callback' => 'drupal_get_form',
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'page arguments' => array('cdm_mediauri_rule_delete'),
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'type' => MENU_CALLBACK,
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);
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$rules = cdm_mediauri_rules();
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foreach ($rules as $rule) {
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if ($rule['embed_html'] && $rule['path']) {
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$items[$rule['path']] = array(
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// TODO restrict access.
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'access arguments' => TRUE,
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'page callback' => 'cdm_mediauri_view_embed',
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'type' => MENU_CALLBACK,
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);
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}
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}
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return $items;
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}
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/**
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* Returns an overview list of existing media uri rules
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*/
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function cdm_mediauri_overview($rules = FALSE) {
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if (!$rules) {
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$rules = cdm_mediauri_rules();
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}
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$header = array(
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t('Pattern'),
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t('Replacement'),
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t('Operations'),
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);
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$rid = -1;
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if (count($rules)) {
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foreach ($rules as $rule) {
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$rid++;
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$rows[] = array(
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$rule['pattern'],
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$rule['replace'],
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l(t('edit'), 'admin/config/cdm_mediauri/edit/' . $rid) . ' | ' . l(t('delete'), 'admin/config/cdm_mediauri/delete/' . $rid),
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);
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}
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}
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else {
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$rows[] = array(
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array(
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'data' => '<em>' . t('There are no existing media uri conversion rules. You may add some rule: <a href="@add">add rule</a>', array(
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'@add' => url('admin/config/cdm_mediauri/add'),
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)) . '</em>',
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'colspan' => 3,
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),
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);
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}
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return theme('table', array('header' => $header, 'rows' => $rows));
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}
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/**
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* Menu callback; add new mediauri rule.
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*/
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function cdm_mediauri_rule_add($form, &$form_state) {
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$form = cdm_mediauri_rule_edit_form('new');
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// Comment @WA: we cannot use system settings form here because we want to
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// use our own submit function (cdm_mediauri_rule_add_submit)
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// return system_settings_form($form);
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return $form;
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}
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/**
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* @todo Please document this function.
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* @see http://drupal.org/node/1354
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*/
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function cdm_mediauri_rule_edit($form, &$form_state) {
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$rid = arg(4);
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$form = cdm_mediauri_rule_edit_form($rid);
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// return system_settings_form($form);
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return $form;
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}
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/**
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* @todo Please document this function.
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* @see http://drupal.org/node/1354
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*/
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function cdm_mediauri_rule_add_submit($form, &$form_state) {
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if ($form_state['values']['rid'] == 'new') {
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$rules = cdm_mediauri_rules();
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$rules[] = $form_state['values']['rule'];
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variable_set('cdm_mediauri_rules', $rules);
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drupal_set_message(t('Rule added'));
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}
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else {
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drupal_set_message(t('Cannot add rule'), 'error');
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}
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$form_state['redirect'] = 'admin/config/cdm_mediauri';
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}
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/**
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* @todo Please document this function.
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* @see http://drupal.org/node/1354
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*/
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function cdm_mediauri_rule_edit_submit($form, &$form_state) {
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if (is_numeric($form_state['values']['rid'])) {
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$rules = cdm_mediauri_rules();
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// Determine if the menu has changed.
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if (isset($rules[$form_state['values']['rid']]['embed']) && $rules[$form_state['values']['rid']]['embed'] != $form_state['values']['rule']['embed'] || $rules[$form_state['values']['rid']]['path'] != $form_state['values']['rule']['path']) {
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menu_rebuild();
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drupal_set_message(t('Menu Rebuild'));
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}
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$rules[$form_state['values']['rid']] = $form_state['values']['rule'];
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variable_set('cdm_mediauri_rules', $rules);
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drupal_set_message(t('Rule saved'));
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}
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else {
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drupal_set_message(t('Cannot save rule (invalid rule id)'), 'error');
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}
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$form_state['redirect'] = 'admin/config/cdm_mediauri';
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}
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/**
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* @todo Please document this function.
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* @see http://drupal.org/node/1354
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*/
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function cdm_mediauri_rule_delete_submit($form, &$form_state) {
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if (is_numeric($form_state['values']['rid'])) {
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$rules = cdm_mediauri_rules();
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unset($rules[$form_state['values']['rid']]);
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variable_set('cdm_mediauri_rules', $rules);
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drupal_set_message(t('Rule deleted'));
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}
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else {
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drupal_set_message(t('Cannot delete rule (invalid rule id)'), 'error');
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}
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$form_state['redirect'] = 'admin/config/cdm_mediauri';
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}
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/**
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* Menu callback; confirm deletion of mediauri rule.
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*/
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function cdm_mediauri_rule_delete($form, &$form_state) {
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$rid = arg(4);
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$rules = cdm_mediauri_rules();
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$form['rid'] = array(
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'#type' => 'hidden',
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'#value' => $rid,
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);
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// Comment @WA: I removed the rule table from the <h2> title to the
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// description so it is consistent with the rest of the interface,
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// instead of displaying the table enlarged like in D5. I would recommend
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// also to hide the Operations column from the table because it may
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// be confusing here.
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return confirm_form(
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$form,
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t('Are you sure you want to delete the following rule:'),
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'admin/config/cdm_mediauri',
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cdm_mediauri_overview(array($rules[$rid])),
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t('Delete'),
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t('Cancel')
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);
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}
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/**
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* @todo Please document this function.
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* @see http://drupal.org/node/1354
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*/
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function cdm_mediauri_rule_edit_form($rid = 'new') {
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if ($rid == 'new') {
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// ---- Little code snippet used to import default rules during development.
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// 0 or 1 or FALSE.
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$default_rule_id = FALSE;
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if ($default_rule_id !== FALSE) {
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$default_rules = cdm_mediauri_rules(TRUE);
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$rule = $default_rules[$default_rule_id];
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}
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/* --- END */
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if (!isset($rule)) {
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$rule = array();
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$rule['type'] = 'empty';
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$rule['pattern'] = '';
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$rule['replace'] = '';
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$rule['prefix'] = '';
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$rule['affix'] = '';
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$rule['url_encode'] = 0;
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$rule['embed_html'] = 0;
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$rule['path'] = '';
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$rule['title'] = '';
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$rule['size_x'] = '';
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$rule['size_y'] = '';
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}
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}
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else {
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$rules = cdm_mediauri_rules();
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$rule = $rules[$rid];
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}
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$form = array();
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/*
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* rule ['type']: values(preview, webapp, media) ['size_x'], ['size_y']:
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* dimensions of preview image in px ['pattern']: php PCRE regex pattern (see:
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* http://www.php.net/manual/reference.pcre.pattern.syntax.php) ['replace']:
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* replacement string ['prefix']: string by which the converted url is to be
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* prefixed ['affix']: string by which the converted url is to be affixed
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* ['url_encode']: values(TRUE, FALSE) if the converted url is to be url
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* encoded ['embed_html']: embes the construct of prefix + url + affix into
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* the page as plain html
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*/
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$form['rid'] = array(
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'#type' => 'hidden',
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'#value' => $rid,
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);
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$form['rule'] = array(
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'#type' => 'fieldset',
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'#title' => check_plain($rule['type'] == 'empty' ? t('New Rule') : t('Rule !rule', array('!rule' => $rid))),
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'#tree' => TRUE,
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);
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$form['rule']['type'] = array(
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'#type' => 'select',
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'#title' => t('Type') . ':',
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'#default_value' => $rule['type'],
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'#options' => array(
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'preview' => t('Preview Quality'),
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'webapp' => t('Web Application'),
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),
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'#description' => t('The type media representation.'),
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);
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$form['rule']['pattern'] = array(
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'#type' => 'textarea',
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'#title' => t('Pattern') . ':',
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'#description' => check_plain(t('php PCRE regex pattern (see: !php_manual)', array(
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'!php_manual' => l(t('php manual'), 'http://www.php.net/manual/reference.pcre.pattern.syntax.php'),
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))),
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'#default_value' => $rule['pattern'],
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'#rows' => 1,
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);
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$form['rule']['replace'] = array(
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'#type' => 'textarea',
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'#title' => t('Replacement') . ':',
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'#default_value' => $rule['replace'],
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'#rows' => 1,
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);
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// ['embed_html'] = 1;
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$form['rule']['embed_html'] = array(
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'#type' => 'checkbox',
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'#title' => t('Embed'),
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'#default_value' => $rule['embed_html'],
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'#description' => t('Embed the construct of prefix + url + affix into the page as plain html'),
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);
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$form['rule']['url_encode'] = array(
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'#type' => 'checkbox',
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'#title' => t('Url Encode'),
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'#default_value' => $rule['url_encode'],
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'#description' => t('Whether the converted url is to be url encoded'),
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);
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$form['rule']['path'] = array(
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'#type' => 'textfield',
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'#title' => t('Drupal Path') . ':',
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'#default_value' => $rule['path'],
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'#description' => t('Drupal Path under which the media is to be embedded into a page'),
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);
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$form['rule']['title'] = array(
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'#type' => 'textfield',
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'#title' => t('Page Title') . ':',
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'#default_value' => $rule['title'],
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'#description' => t('Page Title'),
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);
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$form['rule']['prefix'] = array(
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'#type' => 'textarea',
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'#title' => t('Prefix') . ':',
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'#default_value' => $rule['prefix'],
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'#rows' => 1,
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);
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$form['rule']['affix'] = array(
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'#type' => 'textarea',
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'#title' => t('Affix') . ':',
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'#default_value' => $rule['affix'],
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'#rows' => 1,
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);
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// Comment @WA: I think this is not implemented the right way?
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// Should the field not be enabled if 'Preview' is selected as type in
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// the form, for instance with ajax?
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$form['rule']['size_x'] = array(
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'#type' => 'textfield',
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'#title' => t('Preview Image Width') . ':',
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'#default_value' => $rule['size_x'],
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'#disabled' => $rule['type'] != 'preview',
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'#description' => check_plain(t('Width of preview image in px')),
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'#size' => 4,
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);
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$form['rule']['size_y'] = array(
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'#type' => 'textfield',
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'#title' => t('Preview Image Height') . ':',
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'#default_value' => $rule['size_y'],
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'#disabled' => $rule['type'] != 'preview',
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'#description' => t('Height of preview image in px'),
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'#size' => 4,
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);
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$form['actions']['submit'] = array(
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'#type' => 'submit',
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'#value' => t('Save configuration'),
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);
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375
|
|
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// @WA: D7 form api does not support reset buttons,
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// so to mimic the D5 reset button we add one like this.
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$form['actions']['reset'] = array(
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'#markup' => '<input id="reset" type="reset" class="form-submit" value="' . t('Reset to defaults') . '" />',
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'#weight' => 1000,
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);
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return $form;
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}
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384
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/**
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385
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* @todo Please document this function.
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* @see http://drupal.org/node/1354
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*/
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function cdm_mediauri_rules($default = FALSE) {
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/*
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rules ['type']: values(preview, webapp, media) ['size_x'], ['size_y']:
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dimensions of preview image in px ['pattern']: php PCRE regex pattern (see:
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392
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http://www.php.net/manual/reference.pcre.pattern.syntax.php) ['replace']:
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replacement string ['prefix']: string by which the converted url is to be
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prefixed ['affix']: string by which the converted url is to be affixed
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395
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['url_encode']: values(TRUE, FALSE) if the converted url to be url encoded
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['embed_html']: embes the construct of prefix + url + affix into the page
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as plain html
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398
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*/
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if ($default) {
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// Default rules.
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$rule1 = array();
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$rule1['type'] = 'preview';
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$rule1['pattern'] = '/^(http:\/\/ww2.bgbm.org\/herbarium\/images(?:\/\w+)(?:\/\d+){4})(\/)(.*)$/';
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$rule1['replace'] = '$1/thumbs/$3';
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$rule1['size_x'] = 125;
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$rule1['size_Y'] = 200;
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407
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|
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$rule2 = array();
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$rule2['type'] = 'webapp';
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410
|
$rule2['pattern'] = '/^http:\/\/ww2.bgbm.org\/herbarium\/images\/((?:\w+\/)(?:\d+\/){4}[\w_]+?\.)(.*)$/';
|
411
|
$rule2['replace'] = '$1fpx';
|
412
|
$rule2['prefix'] = '<div style="float: left; width: 10em;">
|
413
|
<p>© BGBM: <br/>
|
414
|
Access is granted under the following conditions:<br/>
|
415
|
The images may not passed on to any third party without our written
|
416
|
consent and due mention of the copyright restrictions, and may not be
|
417
|
used for commercial or non-scientific purposes. Reproduction in
|
418
|
scientific publications is authorized on the condition that the source
|
419
|
and the copyright are fully acknowledged:<br/>
|
420
|
© Botanischer Garten und Botanisches Museum Berlin-Dahlem, FU Berlin.</li>
|
421
|
</p>
|
422
|
<p><a href="http://www.bgbm.org/bgbm/verantwo_e.htm"
|
423
|
class="leftnavi" title="Contact">Contact</a> | <a href="http://www.bgbm.org/bgbm/imprint.htm"
|
424
|
class="leftnavi" title="Impressum">Imprint</a> | <a href="http://www.bgbm.org/disclaim_e.htm" class="leftnavi"
|
425
|
title="Disclaimer">Disclaimer</a>
|
426
|
</p>
|
427
|
</div><div><embed width="490" height="700" align="middle" type="application/x-shockwave-flash"
|
428
|
pluginspage="http://www.macromedia.com/go/getflashplayer" name="FSIViewer"
|
429
|
bgcolor="black" quality="high" play="true"
|
430
|
src="http://ww2.bgbm.org/fsi/fsi.swf?cfg=plugin2&FPXSrc=';
|
431
|
$rule2['affix'] = '&FPXWidth=2801&FPXHeight=4478&Effects=qlt%3D85&InitialView=&Measure_ImageWidth=270.0&Measure_Suffix=%20mm"/></div>';
|
432
|
$rule2['url_encode'] = 1;
|
433
|
$rule2['embed_html'] = 1;
|
434
|
$rule2['path'] = 'bgbm.org/herbarium';
|
435
|
|
436
|
return array(
|
437
|
$rule1,
|
438
|
$rule2,
|
439
|
);
|
440
|
}
|
441
|
else {
|
442
|
return variable_get('cdm_mediauri_rules', array());
|
443
|
}
|
444
|
}
|
445
|
|
446
|
/**
|
447
|
* Converts a media uri.
|
448
|
*
|
449
|
* Converts according to all matching conversion rules which are
|
450
|
* currently defined.
|
451
|
*
|
452
|
* Format of a returned array element:
|
453
|
*
|
454
|
* $return_array[{type}] { // values for {type}:(preview, webapp, media,
|
455
|
* original)
|
456
|
* ['size_x'], // dimensions of preview image in px
|
457
|
* ['size_y'], // dimensions of preview image in px
|
458
|
* ['uri'] // the uri possibly prefixed with path
|
459
|
* ['embed_html'] // the uri embedded into some string
|
460
|
* }
|
461
|
*
|
462
|
* @param string $mediaUri
|
463
|
* The media uri to convert.
|
464
|
*
|
465
|
* @return array
|
466
|
* Returns an associative array of the original media uri and all conversions
|
467
|
* whereas the rule type becomes the array key of the array entries.
|
468
|
* All uris are again packed into associative arrays by means to submit
|
469
|
* additional information as defined in the rules applied.
|
470
|
*/
|
471
|
function cdm_mediauri_conversion($mediaUri) {
|
472
|
$rules = cdm_mediauri_rules();
|
473
|
|
474
|
$muris = array();
|
475
|
$muris['original'] = array(
|
476
|
'uri' => $mediaUri,
|
477
|
'size_x' => NULL,
|
478
|
'size_y' => NULL,
|
479
|
);
|
480
|
|
481
|
foreach ($rules as $rule) {
|
482
|
$uri_converted = preg_replace($rule['pattern'], $rule['replace'], $mediaUri);
|
483
|
if ($uri_converted != $mediaUri) {
|
484
|
if (isset($rule['url_encode']) && $rule['url_encode']) {
|
485
|
$uri_converted = urlencode($uri_converted);
|
486
|
}
|
487
|
$muris[$rule['type']] = array(
|
488
|
'uri' => $uri_converted,
|
489
|
'size_x' => $rule['size_x'],
|
490
|
'size_y' => $rule['size_y'],
|
491
|
);
|
492
|
if (isset($rule['embed_html']) && $rule['embed_html']) {
|
493
|
if ($rule['path']) {
|
494
|
// Embed later on other page.
|
495
|
$muris[$rule['type']]['uri'] = $rule['path'] . '/' . $uri_converted;
|
496
|
}
|
497
|
else {
|
498
|
// Direct embed.
|
499
|
$muris[$rule['type']]['embed_html'] = $rule['prefix'] . $uri_converted . $rule['affix'];
|
500
|
}
|
501
|
}
|
502
|
}
|
503
|
}
|
504
|
return $muris;
|
505
|
}
|
506
|
/**
|
507
|
* @todo Please document this function.
|
508
|
* @see http://drupal.org/node/1354
|
509
|
*/
|
510
|
function cdm_mediauri_view_embed($uri) {
|
511
|
$path = '';
|
512
|
for ($i = 0; ($arg = arg($i)); $i++) {
|
513
|
if ($arg == $uri) {
|
514
|
break;
|
515
|
}
|
516
|
else {
|
517
|
$path .= ($path ? '/' : '') . $arg;
|
518
|
}
|
519
|
}
|
520
|
|
521
|
$rule = FALSE;
|
522
|
foreach (cdm_mediauri_rules() as $r) {
|
523
|
if ($r['embed_html'] && $r['path'] == $path) {
|
524
|
$rule = $r;
|
525
|
break;
|
526
|
}
|
527
|
}
|
528
|
|
529
|
if ($rule) {
|
530
|
drupal_set_title($rule['title'], PASS_THROUGH);
|
531
|
return $rule['prefix'] . $uri . $rule['affix'];
|
532
|
}
|
533
|
|
534
|
return 'ERROR:' . $path . $uri;
|
535
|
}
|