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<?php
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/**
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* @file
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* Definition of views_handler_field_links.
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*/
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/**
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* A abstract handler which provides a collection of links.
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*
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* @ingroup views_field_handlers
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*/
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class views_handler_field_links extends views_handler_field {
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/**
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* {@inheritdoc}
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*/
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public function option_definition() {
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$options = parent::option_definition();
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$options['fields'] = array('default' => array());
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$options['check_access'] = array('default' => FALSE);
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$options['destination'] = array('default' => TRUE, 'bool' => TRUE);
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return $options;
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}
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/**
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* {@inheritdoc}
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*/
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public function options_form(&$form, &$form_state) {
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parent::options_form($form, $form_state);
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$all_fields = $this->view->display_handler->get_field_labels();
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// Offer to include only those fields that follow this one.
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$field_options = array_slice($all_fields, 0, array_search($this->options['id'], array_keys($all_fields)));
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$form['fields'] = array(
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'#type' => 'checkboxes',
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'#title' => t('Fields'),
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'#description' => t('Fields to be included as links.'),
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'#options' => $field_options,
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'#default_value' => $this->options['fields'],
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'#required' => TRUE,
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);
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$form['check_access'] = array(
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'#type' => 'checkbox',
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'#title' => t('Evaluate router path for access'),
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'#default_value' => $this->options['check_access'],
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'#description' => t('Will check if the path exists and is accessible for the current user. Might be useful, might be slow.'),
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);
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$form['destination'] = array(
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'#type' => 'checkbox',
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'#title' => t('Include destination'),
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'#description' => t('Include a "destination" parameter in the link to return the user to the original view upon completing the link action.'),
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'#default_value' => $this->options['destination'],
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);
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}
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/**
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* {@inheritdoc}
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*/
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public function options_submit(&$form, &$form_state) {
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// Remove unselected options.
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$form_state['values']['options']['fields'] = array_filter($form_state['values']['options']['fields']);
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parent::options_submit($form, $form_state);
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}
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/**
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* Return the list of links of this field.
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*
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* @return array
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* The links which are used by the render function.
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*/
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public function get_links() {
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$links = array();
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foreach ($this->options['fields'] as $field) {
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if (empty($this->view->field[$field]->last_render_text)) {
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continue;
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}
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$title = $this->view->field[$field]->last_render_text;
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// Use the alter settings for the link field source not this links field.
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$alter = $this->view->field[$field]->options['alter'];
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$url = array('query' => array());
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// Copy code from views_handler_field::render_as_link().
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$path = $alter['path'];
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if (!empty($path) && $path != '<front>') {
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// Leave path alone on <front> as strip_tags() would remove this.
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// Replace tokens and strip any HTML tags in the path.
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$tokens = $this->get_render_tokens(array());
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$path = strip_tags(decode_entities(strtr($path, $tokens)));
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if (!empty($alter['path_case']) && $alter['path_case'] != 'none') {
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$path = $this->case_transform($path, $alter['path_case']);
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}
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if (!empty($alter['replace_spaces'])) {
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$path = str_replace(' ', '-', $path);
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}
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$url = drupal_parse_url($path);
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if (empty($url)) {
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// Seriously malformed URLs may return FALSE or empty arrays.
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continue;
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}
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$path = $url['path'];
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// Check router menu item access for the current user.
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if ($this->options['check_access']) {
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$menu_item = menu_get_item($path);
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if (!$menu_item || empty($menu_item['access'])) {
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continue;
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}
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}
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if (!empty($this->options['destination']) && empty($alter['external'])) {
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// Override any destination argument included in URL.
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$url['query'] = array_merge($url['query'], drupal_get_destination());
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}
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// Omit tweaks of query, fragment, and link_class.
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$alt = strtr($alter['alt'], $tokens);
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if ($alt && $alt != $title) {
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// Set the title attribute only if it improves accessibility.
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$url['attributes']['title'] = decode_entities($alt);
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}
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if (!empty($alter['rel']) && $rel = strtr($alter['rel'], $tokens)) {
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$url['attributes']['rel'] = $rel;
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}
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$target = check_plain(trim(strtr($alter['target'], $tokens)));
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if (!empty($target)) {
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$url['attributes']['target'] = $target;
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}
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}
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$links[$field] = array(
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'href' => $path,
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'title' => $title,
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) + $url;
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}
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return $links;
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}
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/**
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* {@inheritdoc}
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*/
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public function query() {
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}
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}
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