1201 lines
38 KiB
PHP
1201 lines
38 KiB
PHP
<?php
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// $Id$
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/**
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* @defgroup form Form generation
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* @{
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* Functions to enable output of HTML forms and form elements.
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*
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* Drupal uses these functions to achieve consistency in its form presentation,
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* while at the same time simplifying code and reducing the amount of HTML that
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* must be explicitly generated by modules. See the reference at
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* http://api.drupal.org/api/HEAD/file/developer/topics/forms_api_reference.html
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* and the quickstart guide at
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* http://api.drupal.org/api/HEAD/file/developer/topics/forms_api.html
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*/
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/**
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* Check if the key is a property.
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*/
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function element_property($key) {
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return $key[0] == '#';
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}
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/**
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* Get properties of a form tree element. Properties begin with '#'.
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*/
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function element_properties($element) {
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return array_filter(array_keys((array) $element), 'element_property');
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}
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/**
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* Check if the key is a child.
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*/
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function element_child($key) {
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return $key[0] != '#';
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}
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/**
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* Get keys of a form tree element that are not properties (i.e., do not begin with '#').
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*/
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function element_children($element) {
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return array_filter(array_keys((array) $element), 'element_child');
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}
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/**
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* Processes a form array and produces the HTML output of a form.
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* If there is input in the $_POST['edit'] variable, this function
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* will attempt to validate it, using drupal_validate_form(),
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* and then submit the form using drupal_submit_form().
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*
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* @param $form_id
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* A unique string identifying the form. Allows each form to be
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* themed. Pass NULL to suppress the form_id parameter (produces
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* a shorter URL with method=get)
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* @param $form
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* An associative array containing the structure of the form.
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* @param $callback
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* An optional callback that will be used in addition to the form_id.
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*
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*/
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function drupal_get_form($form_id, &$form, $callback = NULL) {
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global $form_values, $form_submitted, $user, $form_button_counter;
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$form_values = array();
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$form_submitted = FALSE;
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$form_button_counter = array(0, 0);
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$form['#type'] = 'form';
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if (isset($form['#token'])) {
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if (variable_get('cache', 0) && !$user->uid && $_SERVER['REQUEST_METHOD'] == 'GET') {
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unset($form['#token']);
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}
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else {
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// Make sure that a private key is set:
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if (!variable_get('drupal_private_key', '')) {
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variable_set('drupal_private_key', mt_rand());
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}
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$form['form_token'] = array('#type' => 'hidden', '#default_value' => md5(session_id() . $form['#token'] . variable_get('drupal_private_key', '')));
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}
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}
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if (isset($form_id)) {
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$form['form_id'] = array('#type' => 'hidden', '#value' => $form_id, '#id' => str_replace('_', '-', "edit-$form_id"));
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}
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if (!isset($form['#id'])) {
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$form['#id'] = $form_id;
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}
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$form += _element_info('form');
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if (!isset($form['#validate'])) {
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if (function_exists($form_id .'_validate')) {
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$form['#validate'] = array($form_id .'_validate' => array());
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}
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elseif (function_exists($callback .'_validate')) {
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$form['#validate'] = array($callback .'_validate' => array());
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}
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}
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if (!isset($form['#submit'])) {
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if (function_exists($form_id .'_submit')) {
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// we set submit here so that it can be altered but use reference for
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// $form_values because it will change later
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$form['#submit'] = array($form_id .'_submit' => array());
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}
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elseif (function_exists($callback .'_submit')) {
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$form['#submit'] = array($callback .'_submit' => array());
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}
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}
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foreach (module_implements('form_alter') as $module) {
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$function = $module .'_form_alter';
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$function($form_id, $form);
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}
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$form = form_builder($form_id, $form);
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if (!empty($_POST['edit']) && (($_POST['edit']['form_id'] == $form_id) || ($_POST['edit']['form_id'] == $callback))) {
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drupal_validate_form($form_id, $form, $callback);
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// IE does not send a button value when there is only one submit button (and no non-submit buttons)
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// and you submit by pressing enter.
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// In that case we accept a submission without button values.
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if (($form_submitted || (!$form_button_counter[0] && $form_button_counter[1])) && !form_get_errors()) {
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$redirect = drupal_submit_form($form_id, $form, $callback);
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if (isset($redirect)) {
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$goto = $redirect;
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}
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if (isset($form['#redirect'])) {
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$goto = $form['#redirect'];
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}
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if ($goto !== FALSE) {
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if (is_array($goto)) {
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call_user_func_array('drupal_goto', $goto);
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}
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elseif (!isset($goto)) {
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drupal_goto($_GET['q']);
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}
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else {
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drupal_goto($goto);
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}
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}
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}
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}
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if (theme_get_function($form_id)) {
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$form['#theme'] = $form_id;
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}
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elseif (theme_get_function($callback)) {
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$form['#theme'] = $callback;
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}
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if (isset($form['#pre_render'])) {
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foreach ($form['#pre_render'] as $function) {
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if (function_exists($function)) {
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$function($form_id, $form);
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}
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}
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}
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return form_render($form);
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}
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function drupal_validate_form($form_id, $form, $callback = NULL) {
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global $form_values;
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static $validated_forms = array();
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if (isset($validated_forms[$form_id])) {
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return;
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}
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if (isset($form['#token'])) {
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if ($form_values['form_token'] != md5(session_id() . $form['#token'] . variable_get('drupal_private_key', ''))) {
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// setting this error will cause the form to fail validation
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form_set_error('form_token', t('Validation error, please try again. If this error persists, please contact the site administrator.'));
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}
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}
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_form_validate($form, $form_id);
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$validated_forms[$form_id] = TRUE;
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}
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function drupal_submit_form($form_id, $form, $callback = NULL) {
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global $form_values;
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$default_args = array($form_id, &$form_values);
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if (isset($form['#submit'])) {
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foreach ($form['#submit'] as $function => $args) {
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if (function_exists($function)) {
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$args = array_merge($default_args, (array) $args);
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// Since we can only redirect to one page, only the last redirect will work
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$redirect = call_user_func_array($function, $args);
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if (isset($redirect)) {
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$goto = $redirect;
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}
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}
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}
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}
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return $goto;
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}
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function _form_validate($elements, $form_id = NULL) {
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// Recurse through all children.
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foreach (element_children($elements) as $key) {
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if (isset($elements[$key]) && $elements[$key]) {
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_form_validate($elements[$key]);
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}
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}
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/* Validate the current input */
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if (!$elements['#validated']) {
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if (isset($elements['#needs_validation'])) {
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// An empty textfield returns '' so we use empty(). An empty checkbox
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// and a textfield could return '0' and empty('0') returns TRUE so we
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// need a special check for the '0' string.
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if ($elements['#required'] && empty($elements['#value']) && $elements['#value'] !== '0') {
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form_error($elements, t('%name field is required.', array('%name' => $elements['#title'])));
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}
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// Add legal choice check if element has #options. Can be skipped, but then you must validate your own element.
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if (isset($elements['#options']) && isset($elements['#value']) && !isset($elements['#DANGEROUS_SKIP_CHECK'])) {
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if ($elements['#type'] == 'select') {
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$options = form_options_flatten($elements['#options']);
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}
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else {
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$options = $elements['#options'];
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}
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if (is_array($elements['#value'])) {
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$value = $elements['#type'] == 'checkboxes' ? array_keys(array_filter($elements['#value'])) : $elements['#value'];
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foreach ($value as $v) {
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if (!isset($options[$v])) {
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form_error($elements, t('An illegal choice has been detected. Please contact the site administrator.'));
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watchdog('form', t('Illegal choice %choice in %name element.', array('%choice' => theme('placeholder', check_plain($v)), '%name' => theme_placeholder(empty($elements['#title']) ? $elements['#parents'][0] : $elements['#title'])), WATCHDOG_ERROR));
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}
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}
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}
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elseif (!isset($options[$elements['#value']])) {
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form_error($elements, t('An illegal choice has been detected. Please contact the site administrator.'));
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watchdog('form', t('Illegal choice %choice in %name element.', array('%choice' => theme_placeholder(check_plain($v)), '%name' => theme('placeholder', empty($elements['#title']) ? $elements['#parents'][0] : $elements['#title'])), WATCHDOG_ERROR));
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}
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}
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}
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// User-applied checks.
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if (isset($elements['#validate'])) {
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foreach ($elements['#validate'] as $function => $args) {
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$args = array_merge(array($elements), $args);
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// for the full form we hand over a copy of $form_values
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if (isset($form_id)) {
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$args = array_merge(array($form_id, $GLOBALS['form_values']), $args);
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}
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if (function_exists($function)) {
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call_user_func_array($function, $args);
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}
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}
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}
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$elements['#validated'] = TRUE;
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}
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}
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/**
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* File an error against a form element. If the name of the element is
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* edit[foo][bar] then you may pass either foo or foo][bar as $name
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* foo will set an error for all its children.
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*/
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function form_set_error($name = NULL, $message = '') {
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static $form = array();
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if (isset($name) && !isset($form[$name])) {
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$form[$name] = $message;
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if ($message) {
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drupal_set_message($message, 'error');
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}
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}
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return $form;
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}
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/**
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* Return an associative array of all errors.
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*/
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function form_get_errors() {
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$form = form_set_error();
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if (!empty($form)) {
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return $form;
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}
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}
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/**
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* Return the error message filed against the form with the specified name.
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*/
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function form_get_error($element) {
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$form = form_set_error();
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$key = $element['#parents'][0];
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if (isset($form[$key])) {
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return $form[$key];
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}
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$key = implode('][', $element['#parents']);
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if (isset($form[$key])) {
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return $form[$key];
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}
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}
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/**
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* Flag an element as having an error.
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*/
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function form_error(&$element, $message = '') {
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$element['#error'] = TRUE;
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form_set_error(implode('][', $element['#parents']), $message);
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}
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/**
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* Adds some required properties to each form element, which are used
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* internally in the form api. This function also automatically assigns
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* the value property from the $edit array, provided the element doesn't
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* already have an assigned value.
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*
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* @param $form_id
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* A unique string identifying the form. Allows each form to be themed.
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* @param $form
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* An associative array containing the structure of the form.
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*/
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function form_builder($form_id, $form) {
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global $form_values, $form_submitted, $form_button_counter;
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// Initialize as unprocessed.
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$form['#processed'] = FALSE;
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/* Use element defaults */
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if ((!empty($form['#type'])) && ($info = _element_info($form['#type']))) {
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// overlay $info onto $form, retaining preexisting keys in $form
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$form += $info;
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}
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if (isset($form['#input']) && $form['#input']) {
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if (!isset($form['#name'])) {
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$form['#name'] = 'edit[' . implode('][', $form['#parents']) . ']';
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}
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if (!isset($form['#id'])) {
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$form['#id'] = 'edit-' . implode('-', $form['#parents']);
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}
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$posted = (isset($_POST['edit']) && ($_POST['edit']['form_id'] == $form_id));
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$edit = $posted ? $_POST['edit'] : array();
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foreach ($form['#parents'] as $parent) {
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$edit = isset($edit[$parent]) ? $edit[$parent] : NULL;
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}
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if (!isset($form['#value']) && !array_key_exists('#value', $form)) {
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if ($posted) {
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switch ($form['#type']) {
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case 'checkbox':
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$form['#value'] = !empty($edit) ? $form['#return_value'] : 0;
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break;
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case 'select':
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if (isset($form['#multiple']) && $form['#multiple']) {
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if (isset($edit) && is_array($edit)) {
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$form['#value'] = drupal_map_assoc($edit);
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}
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else {
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$form['#value'] = array();
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}
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}
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elseif (isset($edit)) {
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$form['#value'] = $edit;
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}
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break;
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case 'textfield':
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if (isset($edit)) {
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// Equate $edit to the form value to ensure it's marked for validation
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$edit = str_replace(array("\r", "\n"), '', $edit);
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$form['#value'] = $edit;
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}
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break;
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default:
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if (isset($edit)) {
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$form['#value'] = $edit;
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}
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}
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// Mark all posted values for validation
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if ((isset($form['#value']) && $form['#value'] === $edit) || (isset($form['#required']) && $form['#required'])) {
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$form['#needs_validation'] = TRUE;
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}
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}
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if (!isset($form['#value'])) {
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$function = $form['#type'] . '_value';
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if (function_exists($function)) {
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$function($form);
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}
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else {
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$form['#value'] = $form['#default_value'];
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}
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}
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}
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if (isset($form['#executes_submit_callback'])) {
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// Count submit and non-submit buttons
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$form_button_counter[$form['#executes_submit_callback']]++;
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// See if a submit button was pressed
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if (isset($_POST[$form['#name']]) && $_POST[$form['#name']] == $form['#value']) {
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$form_submitted = $form_submitted || $form['#executes_submit_callback'];
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}
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}
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}
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// Allow for elements to expand to multiple elements, e.g. radios, checkboxes and files.
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if (isset($form['#process']) && !$form['#processed']) {
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foreach ($form['#process'] as $process => $args) {
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if (function_exists($process)) {
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$args = array_merge(array($form), $args);
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$form = call_user_func_array($process, $args);
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}
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}
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$form['#processed'] = TRUE;
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}
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// Set the $form_values key that gets passed to validate and submit.
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// We call this after #process gets called so that #process has a
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// chance to update #value if desired.
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if (isset($form['#input']) && $form['#input']) {
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form_set_value($form, $form['#value']);
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}
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// Recurse through all child elements.
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$count = 0;
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foreach (element_children($form) as $key) {
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// don't squash an existing tree value
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if (!isset($form[$key]['#tree'])) {
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$form[$key]['#tree'] = $form['#tree'];
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}
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// don't squash existing parents value
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if (!isset($form[$key]['#parents'])) {
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// Check to see if a tree of child elements is present. If so, continue down the tree if required.
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$form[$key]['#parents'] = $form[$key]['#tree'] && $form['#tree'] ? array_merge($form['#parents'], array($key)) : array($key);
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}
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# Assign a decimal placeholder weight to preserve original array order
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if (!isset($form[$key]['#weight'])) {
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$form[$key]['#weight'] = $count/1000;
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}
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$form[$key] = form_builder($form_id, $form[$key]);
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$count++;
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}
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if (isset($form['#after_build']) && !isset($form['#after_build_done'])) {
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foreach ($form['#after_build'] as $function) {
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if (function_exists($function)) {
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$form = $function($form, $form_values);
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}
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}
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$form['#after_build_done'] = TRUE;
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}
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return $form;
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}
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/**
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* Use this function to make changes to form values in the form validate
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* phase, so they will be available in the submit phase in $form_values.
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*
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* Specifically, if $form['#parents'] is array('foo', 'bar')
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* and $value is 'baz' then this function will make
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* $form_values['foo']['bar'] to be 'baz'.
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*
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* @param $form
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* The form item. Keys used: #parents, #value
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* @param $value
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* The value for the form item.
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*/
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function form_set_value($form, $value) {
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global $form_values;
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_form_set_value($form_values, $form, $form['#parents'], $value);
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}
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/**
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* Helper function for form_set_value().
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*
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* We iterate of $parents and create nested arrays for them
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* in $form_values if needed. Then we insert the value in
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* the right array.
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*/
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function _form_set_value(&$form_values, $form, $parents, $value) {
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$parent = array_shift($parents);
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if (empty($parents)) {
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$form_values[$parent] = $value;
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}
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else {
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if (!isset($form_values[$parent])) {
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$form_values[$parent] = array();
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}
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_form_set_value($form_values[$parent], $form, $parents, $value);
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}
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return $form;
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}
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/**
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* Renders a HTML form given a form tree. Recursively iterates over each of
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* the form elements, generating HTML code. This function is usually
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* called from within a theme. To render a form from within a module, use
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* drupal_get_form().
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|
*
|
|
* @param $elements
|
|
* The form tree describing the form.
|
|
* @return
|
|
* The rendered HTML form.
|
|
*/
|
|
function form_render(&$elements) {
|
|
if (!isset($elements)) {
|
|
return NULL;
|
|
}
|
|
$content = '';
|
|
uasort($elements, "_form_sort");
|
|
if (!isset($elements['#children'])) {
|
|
$children = element_children($elements);
|
|
/* Render all the children that use a theme function */
|
|
if (isset($elements['#theme']) && !$elements['#theme_used']) {
|
|
$elements['#theme_used'] = TRUE;
|
|
|
|
$previous_value = $elements['#value'];
|
|
$previous_type = $elements['#type'];
|
|
// If we rendered a single element, then we will skip the renderer.
|
|
if (empty($children)) {
|
|
$elements['#printed'] = TRUE;
|
|
}
|
|
else {
|
|
$elements['#value'] = '';
|
|
}
|
|
$elements['#type'] = 'markup';
|
|
|
|
$content = theme($elements['#theme'], $elements);
|
|
|
|
$elements['#value'] = $previous_value;
|
|
$elements['#type'] = $previous_type;
|
|
unset($elements['#prefix'], $elements['#suffix']);
|
|
}
|
|
/* render each of the children using form_render and concatenate them */
|
|
if (!isset($content) || $content === '') {
|
|
foreach ($children as $key) {
|
|
$content .= form_render($elements[$key]);
|
|
}
|
|
}
|
|
}
|
|
if (isset($content) && $content !== '') {
|
|
$elements['#children'] = $content;
|
|
}
|
|
|
|
// Until now, we rendered the children, here we render the element itself
|
|
if (!isset($elements['#printed'])) {
|
|
$content = theme(($elements['#type']) ? $elements['#type']: 'markup', $elements);
|
|
$elements['#printed'] = TRUE;
|
|
}
|
|
|
|
if (isset($content) && $content !== '') {
|
|
$prefix = isset($elements['#prefix']) ? $elements['#prefix'] : '';
|
|
$suffix = isset($elements['#suffix']) ? $elements['#suffix'] : '';
|
|
return $prefix . $content . $suffix;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Function used by uasort in form_render() to sort form by weight.
|
|
*/
|
|
function _form_sort($a, $b) {
|
|
$a_weight = (is_array($a) && isset($a['#weight'])) ? $a['#weight'] : 0;
|
|
$b_weight = (is_array($b) && isset($b['#weight'])) ? $b['#weight'] : 0;
|
|
if ($a_weight == $b_weight) {
|
|
return 0;
|
|
}
|
|
return ($a_weight < $b_weight) ? -1 : 1;
|
|
}
|
|
|
|
/**
|
|
* Retrieve the default properties for the defined element type.
|
|
*/
|
|
function _element_info($type, $refresh = null) {
|
|
static $cache;
|
|
|
|
$basic_defaults = array(
|
|
'#description' => NULL,
|
|
'#attributes' => array(),
|
|
'#required' => FALSE,
|
|
'#tree' => FALSE,
|
|
'#parents' => array()
|
|
);
|
|
if (!isset($cache) || $refresh) {
|
|
$cache = array();
|
|
foreach (module_implements('elements') as $module) {
|
|
$elements = module_invoke($module, 'elements');
|
|
if (isset($elements) && is_array($elements)) {
|
|
$cache = array_merge_recursive($cache, $elements);
|
|
}
|
|
}
|
|
if (sizeof($cache)) {
|
|
foreach ($cache as $element_type => $info) {
|
|
$cache[$element_type] = array_merge_recursive($basic_defaults, $info);
|
|
}
|
|
}
|
|
}
|
|
|
|
return $cache[$type];
|
|
}
|
|
|
|
function form_options_flatten($array, $reset = TRUE) {
|
|
static $return;
|
|
|
|
if ($reset) {
|
|
$return = array();
|
|
}
|
|
|
|
foreach ($array as $key => $value) {
|
|
if (is_array($value)) {
|
|
form_options_flatten($value, FALSE);
|
|
}
|
|
else {
|
|
$return[$key] = 1;
|
|
}
|
|
}
|
|
|
|
return $return;
|
|
}
|
|
|
|
/**
|
|
* Format a dropdown menu or scrolling selection box.
|
|
*
|
|
* @param $element
|
|
* An associative array containing the properties of the element.
|
|
* Properties used: title, value, options, description, extra, multiple, required
|
|
* @return
|
|
* A themed HTML string representing the form element.
|
|
*
|
|
* It is possible to group options together; to do this, change the format of
|
|
* $options to an associative array in which the keys are group labels, and the
|
|
* values are associative arrays in the normal $options format.
|
|
*/
|
|
function theme_select($element) {
|
|
$select = '';
|
|
$size = $element['#size'] ? ' size="' . $element['#size'] . '"' : '';
|
|
_form_set_class($element, array('form-select'));
|
|
$multiple = isset($element['#multiple']) && $element['#multiple'];
|
|
return theme('form_element', $element, '<select name="'. $element['#name'] .''. ($multiple ? '[]' : '') .'"'. ($multiple ? ' multiple="multiple" ' : '') . drupal_attributes($element['#attributes']) .' id="'. $element['#id'] .'" '. $size .'>'. form_select_options($element) .'</select>');
|
|
}
|
|
|
|
function form_select_options($element, $choices = NULL) {
|
|
if (!isset($choices)) {
|
|
$choices = $element['#options'];
|
|
}
|
|
// array_key_exists() accommodates the rare event where $element['#value'] is NULL.
|
|
// isset() fails in this situation.
|
|
$value_valid = isset($element['#value']) || array_key_exists('#value', $element);
|
|
$value_is_array = is_array($element['#value']);
|
|
$options = '';
|
|
foreach ($choices as $key => $choice) {
|
|
if (is_array($choice)) {
|
|
$options .= '<optgroup label="'. $key .'">';
|
|
$options .= form_select_options($element, $choice);
|
|
$options .= '</optgroup>';
|
|
}
|
|
else {
|
|
$key = (string)$key;
|
|
if ($value_valid && ($element['#value'] == $key || ($value_is_array && in_array($key, $element['#value'])))) {
|
|
$selected = ' selected="selected"';
|
|
}
|
|
else {
|
|
$selected = '';
|
|
}
|
|
$options .= '<option value="'. $key .'"'. $selected .'>'. check_plain($choice) .'</option>';
|
|
}
|
|
}
|
|
return $options;
|
|
}
|
|
|
|
/**
|
|
* Format a group of form items.
|
|
*
|
|
* @param $element
|
|
* An associative array containing the properties of the element.
|
|
* Properties used: attributes, title, value, description, children, collapsible, collapsed
|
|
* @return
|
|
* A themed HTML string representing the form item group.
|
|
*/
|
|
function theme_fieldset($element) {
|
|
if ($element['#collapsible']) {
|
|
drupal_add_js('misc/collapse.js');
|
|
|
|
$element['#attributes']['class'] .= ' collapsible';
|
|
if ($element['#collapsed']) {
|
|
$element['#attributes']['class'] .= ' collapsed';
|
|
}
|
|
}
|
|
|
|
return '<fieldset' . drupal_attributes($element['#attributes']) .'>' . ($element['#title'] ? '<legend>'. $element['#title'] .'</legend>' : '') . ($element['#description'] ? '<div class="description">'. $element['#description'] .'</div>' : '') . $element['#children'] . $element['#value'] . "</fieldset>\n";
|
|
}
|
|
|
|
/**
|
|
* Format a radio button.
|
|
*
|
|
* @param $element
|
|
* An associative array containing the properties of the element.
|
|
* Properties used: required, return_value, value, attributes, title, description
|
|
* @return
|
|
* A themed HTML string representing the form item group.
|
|
*/
|
|
function theme_radio($element) {
|
|
_form_set_class($element, array('form-radio'));
|
|
$output = '<input type="radio" ';
|
|
$output .= 'name="' . $element['#name'] .'" ';
|
|
$output .= 'value="'. $element['#return_value'] .'" ';
|
|
$output .= ($element['#value'] == $element['#return_value']) ? ' checked="checked" ' : ' ';
|
|
$output .= drupal_attributes($element['#attributes']) .' />';
|
|
if (!is_null($element['#title'])) {
|
|
$output = '<label class="option">'. $output .' '. $element['#title'] .'</label>';
|
|
}
|
|
|
|
unset($element['#title']);
|
|
return theme('form_element', $element, $output);
|
|
}
|
|
|
|
/**
|
|
* Format a set of radio buttons.
|
|
*
|
|
* @param $element
|
|
* An associative array containing the properties of the element.
|
|
* Properties used: title, value, options, description, required and attributes.
|
|
* @return
|
|
* A themed HTML string representing the radio button set.
|
|
*/
|
|
function theme_radios($element) {
|
|
if ($element['#title'] || $element['#description']) {
|
|
unset($element['#id']);
|
|
return theme('form_element', $element, $element['#children']);
|
|
}
|
|
else {
|
|
return $element['#children'];
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Format a password_confirm item.
|
|
*
|
|
* @param $element
|
|
* An associative array containing the properties of the element.
|
|
* Properties used: title, value, id, required, error.
|
|
* @return
|
|
* A themed HTML string representing the form item.
|
|
*/
|
|
function theme_password_confirm($element) {
|
|
return theme('form_element', $element, '<div class="container-inline">'. $element['#children'] .'</div>');
|
|
}
|
|
|
|
/*
|
|
* Expand a password_confirm field into two text boxes.
|
|
*/
|
|
function expand_password_confirm($element) {
|
|
$element['pass1'] = array('#type' => 'password', '#size' => 12, '#value' => $element['#value']['pass1']);
|
|
$element['pass2'] = array('#type' => 'password', '#size' => 12, '#value' => $element['#value']['pass2']);
|
|
$element['#validate'] = array('password_confirm_validate' => array());
|
|
$element['#tree'] = TRUE;
|
|
|
|
return $element;
|
|
}
|
|
|
|
/**
|
|
* Validate password_confirm element.
|
|
*/
|
|
function password_confirm_validate($form) {
|
|
$pass1 = trim($form['pass1']['#value']);
|
|
if (!empty($pass1)) {
|
|
$pass2 = trim($form['pass2']['#value']);
|
|
if ($pass1 != $pass2) {
|
|
form_error($form, t('The specified passwords do not match.'));
|
|
}
|
|
}
|
|
elseif ($form['#required'] && !empty($_POST['edit'])) {
|
|
form_error($form, t('Password field is required.'));
|
|
}
|
|
|
|
// Password field must be converted from a two-element array into a single
|
|
// string regardless of validation results.
|
|
form_set_value($form['pass1'], NULL);
|
|
form_set_value($form['pass2'], NULL);
|
|
form_set_value($form, $pass1);
|
|
|
|
return $form;
|
|
}
|
|
|
|
/**
|
|
* Format a date selection element.
|
|
*
|
|
* @param $element
|
|
* An associative array containing the properties of the element.
|
|
* Properties used: title, value, options, description, required and attributes.
|
|
* @return
|
|
* A themed HTML string representing the date selection boxes.
|
|
*/
|
|
function theme_date($element) {
|
|
return theme('form_element', $element, '<div class="container-inline">'. $element['#children'] .'</div>');
|
|
}
|
|
|
|
/**
|
|
* Roll out a single date element.
|
|
*/
|
|
function expand_date($element) {
|
|
// Default to current date
|
|
if (!isset($element['#value'])) {
|
|
$element['#value'] = array('day' => format_date(time(), 'custom', 'j'),
|
|
'month' => format_date(time(), 'custom', 'n'),
|
|
'year' => format_date(time(), 'custom', 'Y'));
|
|
}
|
|
|
|
$element['#tree'] = TRUE;
|
|
|
|
// Determine the order of day, month, year in the site's chosen date format.
|
|
$format = variable_get('date_format_short', 'm/d/Y');
|
|
$sort = array();
|
|
$sort['day'] = max(strpos($format, 'd'), strpos($format, 'j'));
|
|
$sort['month'] = max(strpos($format, 'm'), strpos($format, 'M'));
|
|
$sort['year'] = strpos($format, 'Y');
|
|
asort($sort);
|
|
$order = array_keys($sort);
|
|
|
|
// Output multi-selector for date
|
|
foreach ($order as $type) {
|
|
switch ($type) {
|
|
case 'day':
|
|
$options = drupal_map_assoc(range(1, 31));
|
|
break;
|
|
case 'month':
|
|
$options = drupal_map_assoc(range(1, 12), 'map_month');
|
|
break;
|
|
case 'year':
|
|
$options = drupal_map_assoc(range(1900, 2050));
|
|
break;
|
|
}
|
|
$parents = $element['#parents'];
|
|
$parents[] = $type;
|
|
$element[$type] = array(
|
|
'#type' => 'select',
|
|
'#value' => $element['#value'][$type],
|
|
'#attributes' => $element['#attributes'],
|
|
'#options' => $options,
|
|
);
|
|
}
|
|
|
|
return $element;
|
|
}
|
|
|
|
/**
|
|
* Validates the date type to stop dates like February 30, 2006.
|
|
*/
|
|
function date_validate($form) {
|
|
if (!checkdate($form['#value']['month'], $form['#value']['day'], $form['#value']['year'])) {
|
|
form_error($form, t('The specified date is invalid.'));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Helper function for usage with drupal_map_assoc to display month names.
|
|
*/
|
|
function map_month($month) {
|
|
return format_date(gmmktime(0, 0, 0, $month, 2, 1970), 'custom', 'M', 0);
|
|
}
|
|
|
|
/**
|
|
* Helper function to load value from default value for checkboxes
|
|
*/
|
|
function checkboxes_value(&$form) {
|
|
$value = array();
|
|
foreach ((array)$form['#default_value'] as $key) {
|
|
$value[$key] = 1;
|
|
}
|
|
$form['#value'] = $value;
|
|
}
|
|
|
|
/**
|
|
* If no default value is set for weight select boxes, use 0.
|
|
*/
|
|
function weight_value(&$form) {
|
|
if (isset($form['#default_value'])) {
|
|
$form['#value'] = $form['#default_value'];
|
|
}
|
|
else {
|
|
$form['#value'] = 0;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Roll out a single radios element to a list of radios,
|
|
* using the options array as index.
|
|
*/
|
|
function expand_radios($element) {
|
|
if (count($element['#options']) > 0) {
|
|
foreach ($element['#options'] as $key => $choice) {
|
|
if (!$element[$key]) {
|
|
$element[$key] = array('#type' => 'radio', '#title' => $choice, '#return_value' => $key, '#default_value' => $element['#default_value'], '#attributes' => $element['#attributes'], '#parents' => $element['#parents'], '#spawned' => TRUE);
|
|
}
|
|
}
|
|
}
|
|
return $element;
|
|
}
|
|
|
|
/**
|
|
* Format a form item.
|
|
*
|
|
* @param $element
|
|
* An associative array containing the properties of the element.
|
|
* Properties used: title, value, description, required, error
|
|
* @return
|
|
* A themed HTML string representing the form item.
|
|
*/
|
|
function theme_item($element) {
|
|
return theme('form_element', $element, $element['#value'] . $element['#children']);
|
|
}
|
|
|
|
/**
|
|
* Format a checkbox.
|
|
*
|
|
* @param $element
|
|
* An associative array containing the properties of the element.
|
|
* Properties used: title, value, return_value, description, required
|
|
* @return
|
|
* A themed HTML string representing the checkbox.
|
|
*/
|
|
function theme_checkbox($element) {
|
|
_form_set_class($element, array('form-checkbox'));
|
|
$checkbox = '<input ';
|
|
$checkbox .= 'type="checkbox" ';
|
|
$checkbox .= 'name="'. $element['#name'] .'" ';
|
|
$checkbox .= 'id="'. $element['#id'].'" ' ;
|
|
$checkbox .= 'value="'. $element['#return_value'] .'" ';
|
|
$checkbox .= $element['#value'] ? ' checked="checked" ' : ' ';
|
|
$checkbox .= drupal_attributes($element['#attributes']) . ' />';
|
|
|
|
if (!is_null($element['#title'])) {
|
|
$checkbox = '<label class="option">'. $checkbox .' '. $element['#title'] .'</label>';
|
|
}
|
|
|
|
unset($element['#title']);
|
|
return theme('form_element', $element, $checkbox);
|
|
}
|
|
|
|
/**
|
|
* Format a set of checkboxes.
|
|
*
|
|
* @param $element
|
|
* An associative array containing the properties of the element.
|
|
* @return
|
|
* A themed HTML string representing the checkbox set.
|
|
*/
|
|
function theme_checkboxes($element) {
|
|
if ($element['#title'] || $element['#description']) {
|
|
unset($element['#id']);
|
|
return theme('form_element', $element, $element['#children']);
|
|
}
|
|
else {
|
|
return $element['#children'];
|
|
}
|
|
}
|
|
|
|
function expand_checkboxes($element) {
|
|
$value = is_array($element['#value']) ? $element['#value'] : array();
|
|
$element['#tree'] = TRUE;
|
|
if (count($element['#options']) > 0) {
|
|
if (!isset($element['#default_value']) || $element['#default_value'] == 0) {
|
|
$element['#default_value'] = array();
|
|
}
|
|
foreach ($element['#options'] as $key => $choice) {
|
|
if (!isset($element[$key])) {
|
|
$element[$key] = array('#type' => 'checkbox', '#processed' => TRUE, '#title' => $choice, '#return_value' => $key, '#default_value' => isset($value[$key]), '#attributes' => $element['#attributes']);
|
|
}
|
|
}
|
|
}
|
|
return $element;
|
|
}
|
|
|
|
function theme_submit($element) {
|
|
return theme('button', $element);
|
|
}
|
|
|
|
function theme_button($element) {
|
|
//Make sure not to overwrite classes
|
|
if (isset($element['#attributes']['class'])) {
|
|
$element['#attributes']['class'] = 'form-'. $element['#button_type'] .' '. $element['#attributes']['class'];
|
|
}
|
|
else {
|
|
$element['#attributes']['class'] = 'form-'. $element['#button_type'];
|
|
}
|
|
|
|
return '<input type="submit" '. (empty($element['#name']) ? '' : 'name="'. $element['#name'] .'" ') .'value="'. check_plain($element['#value']) .'" '. drupal_attributes($element['#attributes']) ." />\n";
|
|
}
|
|
|
|
/**
|
|
* Format a hidden form field.
|
|
*
|
|
* @param $element
|
|
* An associative array containing the properties of the element.
|
|
* Properties used: value, edit
|
|
* @return
|
|
* A themed HTML string representing the hidden form field.
|
|
*/
|
|
function theme_hidden($element) {
|
|
return '<input type="hidden" name="'. $element['#name'] . '" id="'. $element['#id'] . '" value="'. check_plain($element['#value']) ."\" " . drupal_attributes($element['#attributes']) ." />\n";
|
|
}
|
|
|
|
/**
|
|
* Format a textfield.
|
|
*
|
|
* @param $element
|
|
* An associative array containing the properties of the element.
|
|
* Properties used: title, value, description, size, maxlength, required, attributes autocomplete_path
|
|
* @return
|
|
* A themed HTML string representing the textfield.
|
|
*/
|
|
function theme_textfield($element) {
|
|
$size = $element['#size'] ? ' size="' . $element['#size'] . '"' : '';
|
|
$class = array('form-text');
|
|
$extra = '';
|
|
if ($element['#autocomplete_path']) {
|
|
drupal_add_js('misc/autocomplete.js');
|
|
$class[] = 'form-autocomplete';
|
|
$extra = '<input class="autocomplete" type="hidden" id="'. $element['#id'] .'-autocomplete" value="'. check_url(url($element['#autocomplete_path'], NULL, NULL, TRUE)) .'" disabled="disabled" />';
|
|
}
|
|
_form_set_class($element, $class);
|
|
$output = '<input type="text" maxlength="'. $element['#maxlength'] .'" name="'. $element['#name'] .'" id="'. $element['#id'] .'" '. $size .' value="'. check_plain($element['#value']) .'"'. drupal_attributes($element['#attributes']) .' />';
|
|
return theme('form_element', $element, $output). $extra;
|
|
}
|
|
|
|
/**
|
|
* Format a form.
|
|
*
|
|
* @param $element
|
|
* An associative array containing the properties of the element.
|
|
* Properties used: action, method, attributes, children
|
|
* @return
|
|
* A themed HTML string representing the form.
|
|
*/
|
|
function theme_form($element) {
|
|
// Anonymous div to satisfy XHTML compliance.
|
|
$action = $element['#action'] ? 'action="' . check_url($element['#action']) . '" ' : '';
|
|
return '<form '. $action . ' method="'. $element['#method'] .'" '. 'id="'. $element['#id'] .'"'. drupal_attributes($element['#attributes']) .">\n<div>". $element['#children'] ."\n</div></form>\n";
|
|
}
|
|
|
|
/**
|
|
* Format a textarea.
|
|
*
|
|
* @param $element
|
|
* An associative array containing the properties of the element.
|
|
* Properties used: title, value, description, rows, cols, required, attributes
|
|
* @return
|
|
* A themed HTML string representing the textarea.
|
|
*/
|
|
function theme_textarea($element) {
|
|
$class = array('form-textarea');
|
|
if ($element['#resizable'] !== false) {
|
|
drupal_add_js('misc/textarea.js');
|
|
$class[] = 'resizable';
|
|
}
|
|
|
|
$cols = $element['#cols'] ? ' cols="'. $element['#cols'] .'"' : '';
|
|
_form_set_class($element, $class);
|
|
return theme('form_element', $element, '<textarea'. $cols .' rows="'. $element['#rows'] .'" name="'. $element['#name'] .'" id="'. $element['#id'] .'" '. drupal_attributes($element['#attributes']) .'>'. check_plain($element['#value']) .'</textarea>');
|
|
}
|
|
|
|
/**
|
|
* Format HTML markup for use in forms.
|
|
*
|
|
* This is used in more advanced forms, such as theme selection and filter format.
|
|
*
|
|
* @param $element
|
|
* An associative array containing the properties of the element.
|
|
* Properties used: value, children.
|
|
* @return
|
|
* A themed HTML string representing the HTML markup.
|
|
*/
|
|
|
|
function theme_markup($element) {
|
|
return $element['#value'] . $element['#children'];
|
|
}
|
|
|
|
/**
|
|
* Format a password field.
|
|
*
|
|
* @param $element
|
|
* An associative array containing the properties of the element.
|
|
* Properties used: title, value, description, size, maxlength, required, attributes
|
|
* @return
|
|
* A themed HTML string representing the form.
|
|
*/
|
|
function theme_password($element) {
|
|
$size = $element['#size'] ? ' size="'. $element['#size'] .'" ' : '';
|
|
|
|
_form_set_class($element, array('form-text'));
|
|
$output = '<input type="password" maxlength="'. $element['#maxlength'] .'" name="'. $element['#name'] .'" id="'. $element['#id'] .'" '. $size . drupal_attributes($element['#attributes']) .' />';
|
|
return theme('form_element', $element, $output);
|
|
}
|
|
|
|
/**
|
|
* Expand weight elements into selects.
|
|
*/
|
|
function process_weight($element) {
|
|
for ($n = (-1 * $element['#delta']); $n <= $element['#delta']; $n++) {
|
|
$weights[$n] = $n;
|
|
}
|
|
$element['#options'] = $weights;
|
|
$element['#type'] = 'select';
|
|
$element['#is_weight'] = TRUE;
|
|
return $element;
|
|
}
|
|
|
|
/**
|
|
* Format a file upload field.
|
|
*
|
|
* @param $title
|
|
* The label for the file upload field.
|
|
* @param $name
|
|
* The internal name used to refer to the field.
|
|
* @param $size
|
|
* A measure of the visible size of the field (passed directly to HTML).
|
|
* @param $description
|
|
* Explanatory text to display after the form item.
|
|
* @param $required
|
|
* Whether the user must upload a file to the field.
|
|
* @return
|
|
* A themed HTML string representing the field.
|
|
*
|
|
* For assistance with handling the uploaded file correctly, see the API
|
|
* provided by file.inc.
|
|
*/
|
|
function theme_file($element) {
|
|
_form_set_class($element, array('form-file'));
|
|
return theme('form_element', $element, '<input type="file" name="'. $element['#name'] .'"'. ($element['#attributes'] ? ' '. drupal_attributes($element['#attributes']) : '') .' id="'. form_clean_id($element['#id']) .'" size="'. $element['#size'] ."\" />\n");
|
|
}
|
|
|
|
/**
|
|
* Return a themed form element.
|
|
*
|
|
* @param element
|
|
* An associative array containing the properties of the element.
|
|
* Properties used: title, description, id, required
|
|
* @param $value
|
|
* the form element's data
|
|
* @return
|
|
* a string representing the form element
|
|
*/
|
|
function theme_form_element($element, $value) {
|
|
$output = '<div class="form-item">'."\n";
|
|
$required = !empty($element['#required']) ? '<span class="form-required" title="'. t('This field is required.') .'">*</span>' : '';
|
|
|
|
if (!empty($element['#title'])) {
|
|
$title = $element['#title'];
|
|
if (!empty($element['#id'])) {
|
|
$output .= ' <label for="'. form_clean_id($element['#id']) .'">'. t('%title: %required', array('%title' => $title, '%required' => $required)) ."</label>\n";
|
|
}
|
|
else {
|
|
$output .= ' <label>'. t('%title: %required', array('%title' => $title, '%required' => $required)) ."</label>\n";
|
|
}
|
|
}
|
|
|
|
$output .= " $value\n";
|
|
|
|
if (!empty($element['#description'])) {
|
|
$output .= ' <div class="description">'. $element['#description'] ."</div>\n";
|
|
}
|
|
|
|
$output .= "</div>\n";
|
|
|
|
return $output;
|
|
}
|
|
|
|
/**
|
|
* Sets a form element's class attribute.
|
|
*
|
|
* Adds 'required' and 'error' classes as needed.
|
|
*
|
|
* @param &$element
|
|
* The form element
|
|
* @param $name
|
|
* Array of new class names to be added
|
|
*/
|
|
function _form_set_class(&$element, $class = array()) {
|
|
if ($element['#required']) {
|
|
$class[] = 'required';
|
|
}
|
|
if (form_get_error($element)){
|
|
$class[] = 'error';
|
|
}
|
|
if (isset($element['#attributes']['class'])) {
|
|
$class[] = $element['#attributes']['class'];
|
|
}
|
|
$element['#attributes']['class'] = implode(' ', $class);
|
|
}
|
|
|
|
/**
|
|
* Remove invalid characters from an HTML ID attribute string.
|
|
*
|
|
* @param $id
|
|
* The ID to clean
|
|
* @return
|
|
* The cleaned ID
|
|
*/
|
|
function form_clean_id($id = NULL) {
|
|
$id = str_replace('][', '-', $id);
|
|
return $id;
|
|
}
|
|
|
|
/**
|
|
* @} End of "defgroup form".
|
|
*/
|