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<?php
/**
* @file
* Admin page callbacks for the book module.
*/
/**
* Returns an administrative overview of all books.
*/
function book_admin_overview() {
$rows = array();
$headers = array(t('Book'), t('Operations'));
// Add any recognized books to the table list.
foreach (book_get_books() as $book) {
$rows[] = array(l($book['title'], $book['href'], $book['options']), l(t('edit order and titles'), 'admin/content/book/' . $book['nid']));
}
return theme('table', array('header' => $headers, 'rows' => $rows, 'empty' => t('No books available.')));
}
/**
* Form constructor for the book settings form.
*
* @see book_admin_settings_validate()
*
* @ingroup forms
*/
function book_admin_settings() {
$types = node_type_get_names();
$form['book_allowed_types'] = array(
'#type' => 'checkboxes',
'#title' => t('Content types allowed in book outlines'),
'#default_value' => variable_get('book_allowed_types', array('book')),
'#options' => $types,
'#description' => t('Users with the %outline-perm permission can add all content types.', array('%outline-perm' => t('Administer book outlines'))),
'#required' => TRUE,
);
$form['book_child_type'] = array(
'#type' => 'radios',
'#title' => t('Content type for child pages'),
'#default_value' => variable_get('book_child_type', 'book'),
'#options' => $types,
'#required' => TRUE,
);
$form['array_filter'] = array('#type' => 'value', '#value' => TRUE);
$form['#validate'][] = 'book_admin_settings_validate';
return system_settings_form($form);
}
/**
* Form validation handler for book_admin_settings().
*/
function book_admin_settings_validate($form, &$form_state) {
$child_type = $form_state['values']['book_child_type'];
if (empty($form_state['values']['book_allowed_types'][$child_type])) {
form_set_error('book_child_type', t('The content type for the %add-child link must be one of those selected as an allowed book outline type.', array('%add-child' => t('Add child page'))));
}
}
/**
* Form constructor for administering a single book's hierarchy.
*
* @see book_admin_edit_submit()
*
* @param $node
* The node of the top-level page in the book.
*
* @see book_admin_edit_validate()
* @see book_admin_edit_submit()
* @ingroup forms
*/
function book_admin_edit($form, $form_state, $node) {
drupal_set_title($node->title);
$form['#node'] = $node;
_book_admin_table($node, $form);
$form['save'] = array(
'#type' => 'submit',
'#value' => t('Save book pages'),
);
return $form;
}
/**
* Form validation handler for book_admin_edit().
*
* Checks that the book has not been changed while using the form.
*
* @see book_admin_edit_submit()
*/
function book_admin_edit_validate($form, &$form_state) {
if ($form_state['values']['tree_hash'] != $form_state['values']['tree_current_hash']) {
form_set_error('', t('This book has been modified by another user, the changes could not be saved.'));
}
}
/**
* Form submission handler for book_admin_edit().
*
* This function takes care to save parent menu items before their children.
* Saving menu items in the incorrect order can break the menu tree.
*
* @see book_admin_edit_validate()
* @see menu_overview_form_submit()
*/
function book_admin_edit_submit($form, &$form_state) {
// Save elements in the same order as defined in post rather than the form.
// This ensures parents are updated before their children, preventing orphans.
$order = array_flip(array_keys($form_state['input']['table']));
$form['table'] = array_merge($order, $form['table']);
foreach (element_children($form['table']) as $key) {
if ($form['table'][$key]['#item']) {
$row = $form['table'][$key];
$values = $form_state['values']['table'][$key];
// Update menu item if moved.
if ($row['plid']['#default_value'] != $values['plid'] || $row['weight']['#default_value'] != $values['weight']) {
$row['#item']['plid'] = $values['plid'];
$row['#item']['weight'] = $values['weight'];
menu_link_save($row['#item']);
}
// Update the title if changed.
if ($row['title']['#default_value'] != $values['title']) {
$node = node_load($values['nid']);
$langcode = LANGUAGE_NONE;
$node->title = $values['title'];
$node->book['link_title'] = $values['title'];
$node->revision = 1;
$node->log = t('Title changed from %original to %current.', array('%original' => $node->title, '%current' => $values['title']));
node_save($node);
watchdog('content', 'book: updated %title.', array('%title' => $node->title), WATCHDOG_NOTICE, l(t('view'), 'node/' . $node->nid));
}
}
}
drupal_set_message(t('Updated book %title.', array('%title' => $form['#node']->title)));
}
/**
* Builds the table portion of the form for the book administration page.
*
* @param $node
* The node of the top-level page in the book.
* @param $form
* The form that is being modified.
*
* @see book_admin_edit()
*/
function _book_admin_table($node, &$form) {
$form['table'] = array(
'#theme' => 'book_admin_table',
'#tree' => TRUE,
);
$tree = book_menu_subtree_data($node->book);
$tree = array_shift($tree); // Do not include the book item itself.
if ($tree['below']) {
$hash = drupal_hash_base64(serialize($tree['below']));
// Store the hash value as a hidden form element so that we can detect
// if another user changed the book hierarchy.
$form['tree_hash'] = array(
'#type' => 'hidden',
'#default_value' => $hash,
);
$form['tree_current_hash'] = array(
'#type' => 'value',
'#value' => $hash,
);
_book_admin_table_tree($tree['below'], $form['table']);
}
}
/**
* Helps build the main table in the book administration page form.
*
* @param $tree
* A subtree of the book menu hierarchy.
* @param $form
* The form that is being modified.
*
* @return
* The form that is being modified.
*
* @see book_admin_edit()
*/
function _book_admin_table_tree($tree, &$form) {
// The delta must be big enough to give each node a distinct value.
$count = count($tree);
$delta = ($count < 30) ? 15 : intval($count / 2) + 1;
foreach ($tree as $data) {
$form['book-admin-' . $data['link']['nid']] = array(
'#item' => $data['link'],
'nid' => array('#type' => 'value', '#value' => $data['link']['nid']),
'depth' => array('#type' => 'value', '#value' => $data['link']['depth']),
'href' => array('#type' => 'value', '#value' => $data['link']['href']),
'title' => array(
'#type' => 'textfield',
'#default_value' => $data['link']['link_title'],
'#maxlength' => 255,
'#size' => 40,
),
'weight' => array(
'#type' => 'weight',
'#default_value' => $data['link']['weight'],
'#delta' => max($delta, abs($data['link']['weight'])),
'#title' => t('Weight for @title', array('@title' => $data['link']['title'])),
'#title_display' => 'invisible',
),
'plid' => array(
'#type' => 'hidden',
'#default_value' => $data['link']['plid'],
),
'mlid' => array(
'#type' => 'hidden',
'#default_value' => $data['link']['mlid'],
),
);
if ($data['below']) {
_book_admin_table_tree($data['below'], $form);
}
}
return $form;
}
/**
* Returns HTML for a book administration form.
*
* @param $variables
* An associative array containing:
* - form: A render element representing the form.
*
* @see book_admin_table()
* @ingroup themeable
*/
function theme_book_admin_table($variables) {
$form = $variables['form'];
drupal_add_tabledrag('book-outline', 'match', 'parent', 'book-plid', 'book-plid', 'book-mlid', TRUE, MENU_MAX_DEPTH - 2);
drupal_add_tabledrag('book-outline', 'order', 'sibling', 'book-weight');
$header = array(t('Title'), t('Weight'), t('Parent'), array('data' => t('Operations'), 'colspan' => '3'));
$rows = array();
$destination = drupal_get_destination();
$access = user_access('administer nodes');
foreach (element_children($form) as $key) {
$nid = $form[$key]['nid']['#value'];
$href = $form[$key]['href']['#value'];
// Add special classes to be used with tabledrag.js.
$form[$key]['plid']['#attributes']['class'] = array('book-plid');
$form[$key]['mlid']['#attributes']['class'] = array('book-mlid');
$form[$key]['weight']['#attributes']['class'] = array('book-weight');
$data = array(
theme('indentation', array('size' => $form[$key]['depth']['#value'] - 2)) . drupal_render($form[$key]['title']),
drupal_render($form[$key]['weight']),
drupal_render($form[$key]['plid']) . drupal_render($form[$key]['mlid']),
l(t('view'), $href),
$access ? l(t('edit'), 'node/' . $nid . '/edit', array('query' => $destination)) : ' ',
$access ? l(t('delete'), 'node/' . $nid . '/delete', array('query' => $destination) ) : ' ',
);
$row = array('data' => $data);
if (isset($form[$key]['#attributes'])) {
$row = array_merge($row, $form[$key]['#attributes']);
}
$row['class'][] = 'draggable';
$rows[] = $row;
}
return theme('table', array('header' => $header, 'rows' => $rows, 'attributes' => array('id' => 'book-outline')));
}
