drupal/includes/ajax.inc

377 lines
10 KiB
PHP

<?php
/**
* @file
* Handles the server side AJAX interactions of Views.
*/
/**
* @defgroup ajax Views AJAX library
* @{
* Handles the server side AJAX interactions of Views.
*/
/**
* Menu callback to load a view via AJAX.
*/
function views_ajax() {
if (isset($_REQUEST['view_name']) && isset($_REQUEST['view_display_id'])) {
$name = $_REQUEST['view_name'];
$display_id = $_REQUEST['view_display_id'];
$args = isset($_REQUEST['view_args']) && $_REQUEST['view_args'] !== '' ? explode('/', $_REQUEST['view_args']) : array();
$path = isset($_REQUEST['view_path']) ? $_REQUEST['view_path'] : NULL;
$dom_id = isset($_REQUEST['view_dom_id']) ? preg_replace('/[^a-zA-Z0-9_-]+/', '-', $_REQUEST['view_dom_id']) : NULL;
$pager_element = isset($_REQUEST['pager_element']) ? intval($_REQUEST['pager_element']) : NULL;
$commands = array();
// Remove all of this stuff from $_GET so it doesn't end up in pagers and tablesort URLs.
foreach (array('view_name', 'view_display_id', 'view_args', 'view_path', 'view_dom_id', 'pager_element', 'view_base_path', 'ajax_html_ids', 'ajax_page_state') as $key) {
if (isset($_GET[$key])) {
unset($_GET[$key]);
}
if (isset($_REQUEST[$key])) {
unset($_REQUEST[$key]);
}
if (isset($_POST[$key])) {
unset($_POST[$key]);
}
}
// Load the view.
$view = views_get_view($name);
if ($view && $view->access($display_id)) {
// Fix the current path for paging.
if (!empty($path)) {
_current_path($path);
}
// Add all $_POST data, because AJAX is always a post and many things,
// such as tablesorts, exposed filters and paging assume $_GET.
$_GET = $_POST + $_GET;
// Overwrite the destination.
// @see drupal_get_destination()
$origin_destination = $path;
$query = drupal_http_build_query($_REQUEST);
if ($query != '') {
$origin_destination .= '?' . $query;
}
$destination = &drupal_static('drupal_get_destination');
$destination = array('destination' => $origin_destination);
// Override the display's pager_element with the one actually used.
if (isset($pager_element)) {
$commands[] = views_ajax_command_scroll_top('.view-dom-id-' . $dom_id);
$view->display[$display_id]->handler->set_option('pager_element', $pager_element);
}
// Reuse the same DOM id so it matches that in Drupal.settings.
$view->dom_id = $dom_id;
$commands[] = ajax_command_replace('.view-dom-id-' . $dom_id, $view->preview($display_id, $args));
}
drupal_alter('views_ajax_data', $commands, $view);
return array('#type' => 'ajax', '#commands' => $commands);
}
}
/**
* Creates a Drupal AJAX 'viewsSetForm' command.
*
* @param $output
* The form to display in the modal.
* @param $title
* The title.
* @param $url
* An optional URL.
*
* @return
* An array suitable for use with the ajax_render() function.
*/
function views_ajax_command_set_form($output, $title, $url = NULL) {
$command = array(
'command' => 'viewsSetForm',
'output' => $output,
'title' => $title,
);
if (isset($url)) {
$command['url'] = $url;
}
return $command;
}
/**
* Creates a Drupal AJAX 'viewsDismissForm' command.
*
* @return
* An array suitable for use with the ajax_render() function.
*/
function views_ajax_command_dismiss_form() {
$command = array(
'command' => 'viewsDismissForm',
);
return $command;
}
/**
* Creates a Drupal AJAX 'viewsHilite' command.
*
* @param $selector
* The selector to highlight
*
* @return
* An array suitable for use with the ajax_render() function.
*/
function views_ajax_command_hilite($selector) {
return array(
'command' => 'viewsHilite',
'selector' => $selector,
);
}
/**
* Creates a Drupal AJAX 'addTab' command.
*
* @param $id
* The DOM ID.
* @param $title
* The title.
* @param $body
* The body.
*
* @return
* An array suitable for use with the ajax_render() function.
*/
function views_ajax_command_add_tab($id, $title, $body) {
$command = array(
'command' => 'viewsAddTab',
'id' => $id,
'title' => $title,
'body' => $body,
);
return $command;
}
/**
* Scroll to top of the current view.
*
* @return
* An array suitable for use with the ajax_render() function.
*/
function views_ajax_command_scroll_top($selector) {
$command = array(
'command' => 'viewsScrollTop',
'selector' => $selector,
);
return $command;
}
/**
* Shows Save and Cancel buttons.
*
* @return
* An array suitable for use with the ajax_render() function.
*/
function views_ajax_command_show_buttons() {
$command = array(
'command' => 'viewsShowButtons',
);
return $command;
}
/**
* Trigger the Views live preview.
*
* @return
* An array suitable for use with the ajax_render() function.
*/
function views_ajax_command_trigger_preview() {
$command = array(
'command' => 'viewsTriggerPreview',
);
return $command;
}
/**
* Replace the page title.
*
* @return
* An array suitable for use with the ajax_render() function.
*/
function views_ajax_command_replace_title($title) {
$command = array(
'command' => 'viewsReplaceTitle',
'title' => $title,
'siteName' => variable_get('site_name', 'Drupal'),
);
return $command;
}
/**
* Return an AJAX error.
*/
function views_ajax_error($message) {
$commands = array();
$commands[] = views_ajax_command_set_form($message, t('Error'));
return $commands;
}
/**
* Wrapper around drupal_build_form to handle some AJAX stuff automatically.
* This makes some assumptions about the client.
*/
function views_ajax_form_wrapper($form_id, &$form_state) {
ctools_include('dependent');
// This won't override settings already in.
$form_state += array(
'rerender' => FALSE,
'no_redirect' => !empty($form_state['ajax']),
'no_cache' => TRUE,
'build_info' => array(
'args' => array(),
),
);
$form = drupal_build_form($form_id, $form_state);
$output = drupal_render($form);
// These forms have the title built in, so set the title here:
if (empty($form_state['ajax']) && !empty($form_state['title'])) {
drupal_set_title($form_state['title']);
drupal_add_css(drupal_get_path('module', 'views_ui') . '/css/views-admin.css');
}
if (!empty($form_state['ajax']) && (empty($form_state['executed']) || !empty($form_state['rerender']))) {
// If the form didn't execute and we're using ajax, build up a
// Ajax command list to execute.
$commands = array();
$display = '';
if ($messages = theme('status_messages')) {
$display = '<div class="views-messages">' . $messages . '</div>';
}
$display .= $output;
$title = empty($form_state['title']) ? '' : $form_state['title'];
if (!empty($form_state['help_topic'])) {
$module = !empty($form_state['help_module']) ? $form_state['help_module'] : 'views';
if (module_exists('advanced_help')) {
$title = theme('advanced_help_topic', array('module' => $module, 'topic' => $form_state['help_topic'])) . $title;
}
}
$url = empty($form_state['url']) ? url(current_path(), array('absolute' => TRUE)) : $form_state['url'];
$commands[] = views_ajax_command_set_form($display, $title, $url);
if (!empty($form_state['#section'])) {
$commands[] = views_ajax_command_hilite('.' . drupal_clean_css_identifier($form_state['#section']));
}
return $commands;
}
// These forms have the title built in, so set the title here:
if (empty($form_state['ajax']) && !empty($form_state['title'])) {
drupal_set_title($form_state['title']);
}
return $output;
}
/**
* Page callback for views user autocomplete
*/
function views_ajax_autocomplete_user($string = '') {
// The user enters a comma-separated list of user name. We only autocomplete the last name.
$array = drupal_explode_tags($string);
// Fetch last name
$last_string = trim(array_pop($array));
$matches = array();
if ($last_string != '') {
$prefix = count($array) ? implode(', ', $array) . ', ' : '';
if (strpos('anonymous', strtolower($last_string)) !== FALSE) {
$matches[$prefix . 'Anonymous'] = 'Anonymous';
}
$result = db_select('users', 'u')
->fields('u', array('uid', 'name'))
->condition('u.name', db_like($last_string) . '%', 'LIKE')
->range(0, 10)
->execute()
->fetchAllKeyed();
foreach ($result as $account) {
$n = $account;
// Commas and quotes in terms are special cases, so encode 'em.
if (strpos($account, ',') !== FALSE || strpos($account, '"') !== FALSE) {
$n = '"' . str_replace('"', '""', $account) . '"';
}
$matches[$prefix . $n] = check_plain($account);
}
}
drupal_json_output($matches);
}
/**
* Page callback for views taxonomy autocomplete.
*
* @param $vid
* The vocabulary id of the tags which should be returned.
*
* @param $tags_typed
* The typed string of the user.
*
* @see taxonomy_autocomplete()
*/
function views_ajax_autocomplete_taxonomy($vid, $tags_typed = '') {
// The user enters a comma-separated list of tags. We only autocomplete the last tag.
$tags_typed = drupal_explode_tags($tags_typed);
$tag_last = drupal_strtolower(array_pop($tags_typed));
$matches = array();
if ($tag_last != '') {
$query = db_select('taxonomy_term_data', 't');
$query->addTag('translatable');
$query->addTag('term_access');
// Do not select already entered terms.
if (!empty($tags_typed)) {
$query->condition('t.name', $tags_typed, 'NOT IN');
}
// Select rows that match by term name.
$tags_return = $query
->fields('t', array('tid', 'name'))
->condition('t.vid', $vid)
->condition('t.name', '%' . db_like($tag_last) . '%', 'LIKE')
->range(0, 10)
->execute()
->fetchAllKeyed();
$prefix = count($tags_typed) ? drupal_implode_tags($tags_typed) . ', ' : '';
$term_matches = array();
foreach ($tags_return as $tid => $name) {
$n = $name;
// Term names containing commas or quotes must be wrapped in quotes.
if (strpos($name, ',') !== FALSE || strpos($name, '"') !== FALSE) {
$n = '"' . str_replace('"', '""', $name) . '"';
}
// Add term name to list of matches.
$term_matches[$prefix . $n] = check_plain($name);
}
}
drupal_json_output($term_matches);
}
/**
* @}
*/