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- <?php
- /**
- * @file
- * Printer-friendly pages User Interface module.
- *
- * This module handles the display of the printer-friendly sub-module links.
- *
- * @ingroup print
- */
- define('PRINT_UI_LINK_POS_DEFAULT', '{ "link": "link", "block": "block", "help": "help" }');
- define('PRINT_UI_LINK_TEASER_DEFAULT', 0);
- define('PRINT_UI_SHOW_LINK_DEFAULT', 1);
- define('PRINT_UI_SYS_LINK_VISIBILITY_DEFAULT', 1);
- define('PRINT_UI_SYS_LINK_PAGES_DEFAULT', '');
- define('PRINT_UI_LINK_USE_ALIAS_DEFAULT', 0);
- define('PRINT_UI_BOOK_LINK_DEFAULT', 1);
- define('PRINT_UI_ALLOW_NORMAL_LINK', 1);
- define('PRINT_UI_ALLOW_BOOK_LINK', 2);
- define('PRINT_UI_TYPE_FIELDS_WEIGHT', 30);
- define('PRINT_UI_TYPE_SHOW_LINK_DEFAULT', 1);
- define('PRINT_UI_TYPE_COMMENT_LINK_DEFAULT', 0);
- /**
- * Implements hook_permission().
- */
- function print_ui_permission() {
- return array(
- 'node-specific print configuration' => array(
- 'title' => t('Node-specific configuration'),
- 'description' => t('Enable access to the per-node settings.'),
- ),
- );
- }
- /**
- * Implements hook_theme().
- */
- function print_ui_theme() {
- return array(
- 'print_ui_format_link' => array(
- 'variables' => array('format' => '', 'location' => ''),
- ),
- 'print_ui_settings' => array(
- 'render element' => 'form',
- 'file' => 'print_ui.admin.inc',
- ),
- );
- }
- /**
- * Implements hook_menu().
- */
- function print_ui_menu() {
- $items = array();
- $items['admin/config/user-interface/print/ui'] = array(
- 'title' => 'Links',
- 'description' => 'Configure the print module links.',
- 'page callback' => 'drupal_get_form',
- 'page arguments' => array('print_ui_settings'),
- 'access arguments' => array('administer print'),
- 'weight' => 9,
- 'type' => MENU_LOCAL_TASK,
- 'file' => 'print_ui.admin.inc',
- );
- return $items;
- }
- /**
- * Implements hook_block_info().
- */
- function print_ui_block_info() {
- $block['print-links']['info'] = t('Printer, email and PDF versions');
- $block['print-links']['cache'] = DRUPAL_CACHE_PER_PAGE;
- return $block;
- }
- /**
- * Implements hook_block_view().
- */
- function print_ui_block_view($delta = '') {
- $block = array();
- switch ($delta) {
- case 'print-links':
- $nid = preg_replace('!^node/!', '', $_GET['q']);
- if (ctype_digit($nid)) {
- $node = node_load($nid);
- if (!node_access('view', $node)) {
- // If the user doesn't have access to the node, don't show any links
- $block['content'] = '';
- return;
- }
- }
- else {
- $node = NULL;
- }
- $block['content'] = '';
- foreach (module_implements('print_link') as $module) {
- $function = $module . '_print_link';
- if (function_exists($function)) {
- $link = call_user_func_array($function, array());
- $link_pos = variable_get('print_' . $link['format'] . '_link_pos', drupal_json_decode(PRINT_UI_LINK_POS_DEFAULT));
- if (!(empty($link_pos['block']))) {
- $links = print_ui_insert_link($link, array('node' => $node, 'location' => 'block'));
- if (!empty($links)) {
- $block['content'] .= $links;
- }
- }
- }
- }
- break;
- }
- return $block;
- }
- /**
- * Implements hook_help().
- */
- function print_ui_help($path, $arg) {
- $links = '';
- if (($path !== 'node/%') && ($path !== 'node/%/revisions/%/view')) {
- static $output = FALSE;
- if ($output === FALSE) {
- $output = TRUE;
- foreach (module_implements('print_link') as $module) {
- $function = $module . '_print_link';
- if (function_exists($function)) {
- $link = call_user_func_array($function, array());
- $link_pos = variable_get('print_' . $link['format'] . '_link_pos', drupal_json_decode(PRINT_UI_LINK_POS_DEFAULT));
- if (!empty($link_pos['help'])) {
- $links .= print_ui_insert_link($link, array('location' => 'help'));
- }
- }
- }
- if ($links) {
- return "<span class='print-syslink'>$links</span>";
- }
- }
- }
- }
- /**
- * Implements hook_node_view_alter().
- */
- function print_ui_node_view_alter(&$build) {
- if (isset($build['links']['book']['#links']['book_printer'])) {
- $book_link = variable_get('print_html_book_link', PRINT_UI_BOOK_LINK_DEFAULT);
- if ($book_link) {
- $link = print_print_link();
- $link_pos = variable_get('print_html_link_pos', drupal_json_decode(PRINT_UI_LINK_POS_DEFAULT));
- if (!empty($link_pos['link'])) {
- $format = theme('print_ui_format_link', array('format' => 'html', 'location' => 'link'));
- switch ($book_link) {
- case 1:
- $path = $build['links']['book']['#links']['book_printer']['href'];
- break;
- case 2:
- $link_use_alias = variable_get('print_html_link_use_alias', PRINT_UI_LINK_USE_ALIAS_DEFAULT);
- $path = ($link_use_alias && ($alias = drupal_lookup_path('alias', 'node/' . $build['#node']->nid))) ? $alias : $build['#node']->nid;
- break;
- }
- $build['links']['book']['#links']['book_printer'] = array(
- 'href' => $link['path'] . '/' . $path,
- 'title' => $format['text'],
- 'attributes' => $format['attributes'],
- 'html' => $format['html'],
- );
- }
- else {
- unset($build['links']['book']['#links']['book_printer']);
- }
- }
- }
- }
- /**
- * Implements hook_node_view().
- */
- function print_ui_node_view($node, $view_mode) {
- $corner_markup = '';
- foreach (module_implements('print_link') as $module) {
- $function = $module . '_print_link';
- if (function_exists($function)) {
- $link = call_user_func_array($function, array());
- $link_pos = variable_get('print_' . $link['format'] . '_link_pos', drupal_json_decode(PRINT_UI_LINK_POS_DEFAULT));
- $link_use_alias = variable_get('print_' . $link['format'] . '_link_use_alias', PRINT_UI_LINK_USE_ALIAS_DEFAULT);
- if (!preg_match('!^node/[\d]*/revisions/[\d]*/view$!', $_GET['q'])) {
- // Not a revision, use node->nid to build the path
- $path = (($link_use_alias) && ($alias = drupal_lookup_path('alias', 'node/' . $node->nid))) ? $alias : $node->nid;
- }
- else {
- // This is a node revision, replace only the node component
- $path = preg_replace('!^node/!', '', $_GET['q']);
- }
- $path = $link['path'] . '/' . $path;
- foreach (array('node', 'comment') as $type) {
- $allowed_type = print_ui_link_allowed($link, array('type' => $type, 'node' => $node, 'view_mode' => $view_mode));
- if ($allowed_type) {
- drupal_add_css(drupal_get_path('module', 'print_ui') . '/css/print_ui.theme.css');
- $links = array();
- $format = theme('print_ui_format_link', array('format' => $link['format'], 'location' => 'link'));
- // Show book link
- if ($allowed_type === PRINT_UI_ALLOW_BOOK_LINK) {
- $path = $link['path'] . '/book/export/html/' . $node->nid;
- $links['book_' . $link['format']] = array(
- 'href' => $path,
- 'title' => $format['text'],
- 'attributes' => $format['attributes'],
- 'html' => $format['html'],
- );
- }
- elseif ($allowed_type === PRINT_UI_ALLOW_NORMAL_LINK) {
- $links['print_' . $link['format']] = array(
- 'href' => $path,
- 'title' => $format['text'],
- 'attributes' => $format['attributes'],
- 'html' => $format['html'],
- 'query' => _print_ui_query_string_encode($_GET, array('q')),
- );
- }
- $link_content = array(
- '#theme' => 'links',
- '#links' => $links,
- '#attributes' => array('class' => array('links', 'inline')),
- );
- // If it's a node, and configured to show the link, but it's not the html version of a book then show it
- if (($type == 'node') && !empty($link_pos['link']) && !(isset($node->book) && ($link['format'] == 'html'))) {
- $node->content['links']['print_' . $link['format']] = $link_content;
- }
- elseif (($type == 'comment') && isset($node->content['comments']['comments'])) {
- foreach ($node->content['comments']['comments'] as $cid => $comment) {
- if (is_numeric($cid)) {
- $link_content['#links']['print_' . $link['format']]['query']['comment'] = $cid;
- $node->content['comments']['comments'][$cid]['links']['print_' . $link['format']] = $link_content;
- }
- }
- }
- }
- }
- if (!empty($link_pos['corner'])) {
- $corner_markup .= print_ui_insert_link($link, array('node' => $node, 'path' => $path, 'location' => 'corner'));
- }
- }
- }
- if (($view_mode == 'full') && (!empty($corner_markup))) {
- // Insert content corner links
- $node->content['print_links'] = array(
- '#prefix' => '<span class="print-link">',
- '#markup' => $corner_markup,
- '#suffix' => '</span>',
- '#weight' => -101,
- );
- }
- }
- /**
- * Implements hook_node_load().
- */
- function print_ui_node_load($nodes, $types) {
- $ids = array();
- foreach ($nodes as $node) {
- $ids[] = $node->nid;
- }
- foreach (module_implements('print_link') as $module) {
- $function = $module . '_print_link';
- if (function_exists($function)) {
- $link = call_user_func_array($function, array());
- $display = 'print_' . $link['format'] . '_display';
- $display_comment = 'print_' . $link['format'] . '_display_comment';
- $display_urllist = 'print_' . $link['format'] . '_display_urllist';
- $result = db_query('SELECT nid, link, comments, url_list FROM {' . $module . '_node_conf} WHERE nid IN (:nids)', array(':nids' => $ids))->fetchAllAssoc('nid');
- foreach ($nodes as $node) {
- $node->{$display} = isset($result[$node->nid]) ? intval($result[$node->nid]->link) : variable_get($display . '_' . $node->type, PRINT_UI_TYPE_SHOW_LINK_DEFAULT);
- $node->{$display_comment} = isset($result[$node->nid]) ? intval($result[$node->nid]->comments) : variable_get($display_comment . '_' . $node->type, PRINT_UI_TYPE_COMMENT_LINK_DEFAULT);
- $node->{$display_urllist} = isset($result[$node->nid]) ? intval($result[$node->nid]->url_list) : variable_get($display_urllist . '_' . $node->type, PRINT_TYPE_URLLIST_DEFAULT);
- }
- }
- }
- }
- /**
- * Implements hook_node_insert().
- */
- function print_ui_node_insert($node) {
- return print_ui_node_update($node);
- }
- /**
- * Implements hook_node_update().
- */
- function print_ui_node_update($node) {
- if (user_access('administer print') || user_access('node-specific print configuration')) {
- foreach (module_implements('print_link') as $module) {
- $function = $module . '_print_link';
- if (function_exists($function)) {
- $link = call_user_func_array($function, array());
- $display = 'print_' . $link['format'] . '_display';
- $display_comment = 'print_' . $link['format'] . '_display_comment';
- $display_urllist = 'print_' . $link['format'] . '_display_urllist';
- if (!isset($node->{$display}) || $node->{$display} === NULL) {
- $node->{$display} = variable_get($display . '_' . $node->type, PRINT_UI_TYPE_SHOW_LINK_DEFAULT);
- }
- if (!isset($node->{$display_comment}) || $node->{$display_comment} === NULL) {
- $node->{$display_comment} = variable_get($display_comment . '_' . $node->type, PRINT_UI_TYPE_COMMENT_LINK_DEFAULT);
- }
- if (!isset($node->{$display_urllist}) || $node->{$display_urllist} === NULL) {
- $node->{$display_urllist} = variable_get($display_urllist . '_' . $node->type, PRINT_TYPE_URLLIST_DEFAULT);
- }
- db_merge($module . '_node_conf')
- ->key(array('nid' => $node->nid))
- ->fields(array(
- 'link' => $node->{$display},
- 'comments' => $node->{$display_comment},
- 'url_list' => $node->{$display_urllist},
- ))
- ->execute();
- }
- }
- }
- }
- /**
- * Implements hook_node_delete().
- */
- function print_ui_node_delete($node) {
- foreach (module_implements('print_link') as $module) {
- $function = $module . '_print_link';
- if (function_exists($function)) {
- $link = call_user_func_array($function, array());
- db_delete($module . '_node_conf')
- ->condition('nid', $node->nid)
- ->execute();
- }
- }
- }
- /**
- * Implements hook_form_alter().
- */
- function print_ui_form_alter(&$form, &$form_state, $form_id) {
- // Add the node-type settings option to activate the printer-friendly version link
- if ((user_access('administer print') || user_access('node-specific print configuration')) &&
- (($form_id == 'node_type_form') || !empty($form['#node_edit_form']))) {
- $form['print'] = array(
- '#type' => 'fieldset',
- '#title' => t('Printer, email and PDF versions'),
- '#collapsible' => TRUE,
- '#collapsed' => TRUE,
- '#weight' => PRINT_UI_TYPE_FIELDS_WEIGHT,
- '#group' => 'additional_settings',
- );
- foreach (module_implements('print_link') as $module) {
- $function = $module . '_print_link';
- if (function_exists($function)) {
- $link = call_user_func_array($function, array());
- $form['print']['print_' . $link['format']] = array(
- '#type' => 'fieldset',
- '#title' => check_plain($link['text']),
- '#collapsible' => TRUE,
- );
- $display = 'print_' . $link['format'] . '_display';
- $display_comment = 'print_' . $link['format'] . '_display_comment';
- $display_urllist = 'print_' . $link['format'] . '_display_urllist';
- $form['print']['print_' . $link['format']][$display] = array(
- '#type' => 'checkbox',
- '#title' => t('Show link'),
- );
- $form['print']['print_' . $link['format']][$display_comment] = array(
- '#type' => 'checkbox',
- '#title' => t('Show link in individual comments'),
- );
- $form['print']['print_' . $link['format']][$display_urllist] = array(
- '#type' => 'checkbox',
- '#title' => t('Show Printer-friendly URLs list'),
- );
- if ($form_id == 'node_type_form') {
- $form['print']['print_' . $link['format']][$display]['#default_value'] = variable_get($display . '_' . $form['#node_type']->type, PRINT_UI_TYPE_SHOW_LINK_DEFAULT);
- $form['print']['print_' . $link['format']][$display_comment]['#default_value'] = variable_get($display_comment . '_' . $form['#node_type']->type, PRINT_UI_TYPE_COMMENT_LINK_DEFAULT);
- $form['print']['print_' . $link['format']][$display_urllist]['#default_value'] = variable_get($display_urllist . '_' . $form['#node_type']->type, PRINT_TYPE_URLLIST_DEFAULT);
- }
- else {
- $node = $form['#node'];
- $form['print']['print_' . $link['format']][$display]['#default_value'] = isset($node->{$display}) ? $node->{$display} : variable_get($display . '_' . $node->type, PRINT_UI_TYPE_SHOW_LINK_DEFAULT);
- $form['print']['print_' . $link['format']][$display_comment]['#default_value'] = isset($node->{$display_comment}) ? $node->{$display_comment} : variable_get($display_comment . '_' . $node->type, PRINT_UI_TYPE_COMMENT_LINK_DEFAULT);
- $form['print']['print_' . $link['format']][$display_urllist]['#default_value'] = isset($node->{$display_urllist}) ? $node->{$display_urllist} : variable_get($display_urllist . '_' . $node->type, PRINT_TYPE_URLLIST_DEFAULT);
- }
- }
- }
- }
- }
- /**
- * Auxiliary function to fill the Printer-friendly link attributes
- *
- * @param string $title
- * text to displayed by the link when hovering over it with the mouse
- * @param string $class
- * class attribute to be used in the link
- * @param bool $new_window
- * if TRUE opens the target page in a new window
- *
- * @return array
- * An associative array containing:
- * - title: text to be used when hovering over the link.
- * - class: CSS class of the link tag.
- * - target: used for opening a new window with the non-javascript method
- * - onclick: open a new window, with the javascript method
- * - rel: SEO-related attribute indicating that the printer-friendly version
- * should not be indexed by search engine robots.
- */
- function _print_ui_fill_attributes($title = '', $class = '', $new_window = FALSE) {
- $print_newwindow = variable_get('print_newwindow', PRINT_NEWWINDOW_DEFAULT);
- $print_robots_noindex = variable_get('print_robots_noindex', PRINT_ROBOTS_NOINDEX_DEFAULT);
- $attributes = array();
- $attributes['title'] = $title;
- if (!empty($class)) {
- $attributes['class'] = array($class);
- }
- if ($new_window) {
- switch ($print_newwindow) {
- case 0:
- $attributes['target'] = '_blank';
- break;
- case 1:
- $attributes['onclick'] = 'window.open(this.href); return false';
- break;
- }
- }
- if (!empty($print_robots_noindex)) {
- $attributes['rel'] = 'nofollow';
- }
- return $attributes;
- }
- /**
- * Format the Printer-friendly link
- *
- * @return array
- * An associative array containing:
- * - text: The content of the link
- * - html: TRUE if the text contains HTML tags, FALSE if it's plain text
- * - attributes: several attributes of the link tag (title, class, target,
- * onclick, rel)
- *
- * @see _print_ui_fill_attributes()
- * @ingroup themeable
- * @ingroup print_themeable
- */
- function theme_print_ui_format_link($vars) {
- $format = $vars['format'];
- foreach (module_implements('print_link') as $module) {
- $function = $module . '_print_link';
- if (function_exists($function)) {
- $link = call_user_func_array($function, array());
- if ($link['format'] == $format) {
- $link_class = variable_get('print_' . $link['format'] . '_link_class', $link['class']);
- $new_window = FALSE;
- $func = $module . '_print_new_window_alter';
- if (function_exists($func)) {
- $func($new_window, $link['format']);
- }
- $show_link = variable_get('print_' . $link['format'] . '_show_link', PRINT_UI_SHOW_LINK_DEFAULT);
- $link_text = filter_xss(variable_get('print_' . $link['format'] . '_link_text', $link['text']));
- if ($show_link >= 2) {
- $img = drupal_get_path('module', $module) . '/icons/' . $link['icon'];
- switch ($show_link) {
- case 2:
- $text = theme('image', array('path' => $img, 'width' => '16px', 'height' => '16px', 'alt' => $link_text, 'title' => $link_text, 'attributes' => array('class' => array('print-icon'))));
- break;
- case 3:
- $text = theme('image', array('path' => $img, 'width' => '16px', 'height' => '16px', 'alt' => $link_text, 'title' => $link_text, 'attributes' => array('class' => array('print-icon', 'print-icon-margin')))) . $link_text;
- break;
- }
- $html = TRUE;
- }
- else {
- $text = $link_text;
- $html = FALSE;
- }
- return array(
- 'text' => $text,
- 'html' => $html,
- 'attributes' => _print_ui_fill_attributes($link['description'], strip_tags($link_class), $new_window),
- );
- }
- }
- }
- }
- /**
- * Auxiliary function to display a formatted Printer-friendly link
- *
- * Function made available so that developers may call this function from
- * their defined pages/blocks.
- *
- * @param array $link
- * array returned by the hook_print_link() call.
- * @param array $args
- * Array of optional arguments:
- * - node: node object, to be used in checking node access. If the path
- * argument is not provided, the path used will be node/nid.
- * - path: path to be used in the link. If not specified, the current URL
- * is used.
- * - location: the location in the page where the link is being inserted
- * ('link', 'corner', 'block', 'help').
- *
- * @return string
- * string with the HTML link to the printer-friendly page
- */
- function print_ui_insert_link($link, $args = array()) {
- $node = isset($args['node']) ? $args['node'] : NULL;
- $path = isset($args['path']) ? $args['path'] : NULL;
- $location = isset($args['location']) ? $args['location'] : '';
- if ($node !== NULL) {
- $nid = $node->nid;
- if ($path === NULL) {
- $path = 'node/' . $nid;
- }
- $allowed_type = print_ui_link_allowed($link, array('node' => $node));
- }
- else {
- if ($path === NULL) {
- $nid = preg_replace('!^node/([\d]+)!', '$1', $_GET['q']);
- $path = $_GET['q'];
- }
- else {
- $nid = NULL;
- }
- $allowed_type = print_ui_link_allowed($link, array('path' => $path));
- }
- if ($allowed_type) {
- if ($nid !== NULL) {
- if ($allowed_type === PRINT_UI_ALLOW_BOOK_LINK) {
- $path = 'book/export/html/' . $nid;
- }
- else {
- if (variable_get('print_' . $link['format'] . '_link_use_alias', PRINT_UI_LINK_USE_ALIAS_DEFAULT) && ($alias = drupal_lookup_path('alias', $path))) {
- $path = $alias;
- }
- else {
- $path = $nid;
- }
- }
- $path = $link['path'] . '/' . $path;
- $query = _print_ui_query_string_encode($_GET, array('q'));
- }
- else {
- $query = NULL;
- }
- drupal_add_css(drupal_get_path('module', 'print_ui') . '/css/print_ui.theme.css');
- $format = theme('print_ui_format_link', array('format' => $link['format'], 'location' => $location));
- return '<span class="print_' . $link['format'] . '">' . l($format['text'], $path, array('attributes' => $format['attributes'], 'query' => $query, 'absolute' => TRUE, 'html' => $format['html'])) . '</span>';
- }
- else {
- return FALSE;
- }
- }
- /**
- * Check if the link to the PF version is allowed depending on the settings
- *
- * @param array $link
- * array returned by the hook_print_link() call.
- * @param array $args
- * array containing the possible parameters:
- * view_mode, node, type, path
- *
- * @return
- * FALSE if not allowed
- * PRINT_UI_ALLOW_NORMAL_LINK if a normal link is allowed
- * PRINT_UI_ALLOW_BOOK_LINK if a link is allowed in a book node
- */
- function print_ui_link_allowed($link, $args) {
- if (isset($args['view_mode'])) {
- $view_mode = $args['view_mode'];
- if ((($view_mode == 'teaser') && !variable_get('print_' . $link['format'] . '_link_teaser', PRINT_UI_LINK_TEASER_DEFAULT))
- || !in_array($view_mode, array('full', 'teaser'))) {
- // If the teaser link is disabled
- return FALSE;
- }
- }
- $link_allowed_func = $link['module'] . '_link_allowed';
- if (function_exists($link_allowed_func)) {
- if (!$link_allowed_func($args)) {
- // If the format-specific function disallows the link
- return FALSE;
- }
- }
- if (!empty($args['path'])) {
- $nid = preg_replace('!^node/!', '', drupal_get_normal_path($args['path']));
- if (ctype_digit($nid)) {
- $args['node'] = node_load($nid);
- }
- }
- if (!empty($args['node'])) {
- static $node_type = '';
- $node = $args['node'];
- if (isset($node->type)) {
- $node_type = $node->type;
- }
- // Node
- if (isset($args['type']) && ($args['type'] == 'comment') && isset($node_type)) {
- // Link is for a comment, return the configured setting
- // Cache this statically to avoid duplicate queries for every comment.
- static $res = array();
- if (!isset($res[$link['format']][$node->nid])) {
- $res[$link['format']][$node->nid] = db_query("SELECT comments FROM {" . $link['module'] . "_node_conf} WHERE nid = :nid", array(':nid' => $node->nid))->fetchField();
- }
- $display_comment = ($res && ($res[$link['format']][$node->nid] !== FALSE)) ? $res[$link['format']][$node->nid] : variable_get('print_' . $link['format'] . '_display_comment_' . $node_type, PRINT_UI_TYPE_COMMENT_LINK_DEFAULT);
- if ($display_comment) {
- return PRINT_UI_ALLOW_NORMAL_LINK;
- }
- }
- else {
- // Node link
- $display = 'print_' . $link['format'] . '_display';
- if (isset($node->{$display}) && !$node->{$display}) {
- // Link for this node is disabled
- return FALSE;
- }
- elseif (isset($node->book)) {
- // Node is a book;
- $book_link = variable_get('print_' . $link['format'] . '_book_link', PRINT_UI_BOOK_LINK_DEFAULT);
- switch ($book_link) {
- case 1:
- if (user_access('access printer-friendly version')) {
- return PRINT_UI_ALLOW_BOOK_LINK;
- }
- break;
- case 2:
- return PRINT_UI_ALLOW_NORMAL_LINK;
- }
- }
- else {
- return PRINT_UI_ALLOW_NORMAL_LINK;
- }
- }
- }
- else {
- // 'System' page
- $sys_link_visibility = variable_get('print_' . $link['format'] . '_sys_link_visibility', PRINT_UI_SYS_LINK_VISIBILITY_DEFAULT);
- $sys_link_pages = variable_get('print_' . $link['format'] . '_sys_link_pages', PRINT_UI_SYS_LINK_PAGES_DEFAULT);
- return _print_ui_page_match($sys_link_visibility, $_GET['q'], $sys_link_pages);
- }
- return FALSE;
- }
- /**
- * Check if the provided page is enabled according to the visibility settings
- *
- * @param int $visibility
- * current visibility settings:
- * 0 for show on every page except the listed pages
- * 1 for show on only the listed pages
- * @param string $path
- * current path
- * @param string $pages
- * list of pages
- *
- * @return bool
- * TRUE if it is enabled, FALSE otherwise
- */
- function _print_ui_page_match($visibility, $path, $pages) {
- if ($pages) {
- if ($visibility == 2) {
- if (module_exists('php')) {
- return php_eval($pages);
- }
- else {
- return FALSE;
- }
- }
- $alias = drupal_get_path_alias($path);
- $page_match = drupal_match_path($path, $pages);
- if ($alias != $path) {
- $page_match = $page_match || drupal_match_path($alias, $pages);
- }
- return !($visibility xor $page_match);
- }
- else {
- return !$visibility;
- }
- }
- /**
- * Parse an array into a valid urlencoded query string.
- *
- * Modified from drupal_query_string_encode to prevent re-encoding of
- * encoded original. (see #301192)
- *
- * @param array $query
- * The array to be processed e.g. $_GET
- * @param array $exclude
- * The array filled with keys to be excluded.
- * @param string $parent
- * The be used in recursive calls.
- *
- * @return string
- * urlencoded string which can be appended to/as the URL query string
- */
- function _print_ui_query_string_encode($query, $exclude = array(), $parent = '') {
- $params = array();
- foreach ($query as $key => $value) {
- if (in_array($key, $exclude, TRUE)) {
- continue;
- }
- if (is_array($value)) {
- $params[$key] = _print_ui_query_string_encode($value, $exclude, $key);
- }
- else {
- $params[$key] = $value;
- }
- }
- return empty($params) ? NULL : $params;
- }
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