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<?php
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// $Id$
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/**
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* Provide a list of additional form element-types.
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*
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* Implementation of hook_elements.
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*
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* @return array
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* An array of element types.
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*/
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function elements_elements() {
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$types['tableselect'] = array('#input' => TRUE, '#advanced_select' => TRUE, '#multiple' => TRUE, '#process' => array('_elements_expand_tableselect' => array()));
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$type['imagebutton'] = array('#input' => TRUE, '#button_type' => 'submit',);
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return $types;
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}
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function theme_imagebutton($element) {
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return '<input type="image" class="form-'. $element['#button_type'] .'" name="'. $element['#name'] .'" value="'. check_plain($element['#default_value']) .'" '. drupal_attributes($element['#attributes']) . ' src="' . $element['#image'] . '" alt="' . $element['#title'] . '" title="' . $element['#title'] . "\" />\n";
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}
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function imagebutton_value() {
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// null function guarantees default_value doesn't get moved to #value.
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}
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/**
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* Create the right amount of checkboxes or radios to populate the table.
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*
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* @param unknown_type $element
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* @return unknown
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*/
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function _elements_expand_tableselect($element) {
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if ($element['#multiple']) {
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$value = is_array($element['#value']) ? $element['#value'] : array();
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}
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else {
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// Advanced select is only possible if #multiple is true.
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$element['#advanced_select'] = FALSE;
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}
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$element['#tree'] = TRUE;
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if (count($element['#options']) > 0) {
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if (!isset($element['#default_value']) || $element['#default_value'] === 0) {
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$element['#default_value'] = array();
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}
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foreach ($element['#options'] as $key => $choice) {
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if ($element['#multiple']) {
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$element[$key] = array('#type' => 'checkbox', '#processed' => TRUE, '#title' => '', '#return_value' => $key, '#default_value' => isset($value[$key]), '#attributes' => $element['#attributes']);
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}
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else {
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$element[$key] = array('#type' => 'radio', '#title' => '', '#return_value' => $key, '#default_value' => ($element['#default_value'] == $key) ? $key : NULL, '#attributes' => $element['#attributes'], '#parents' => $element['#parents'], '#spawned' => TRUE);
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}
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}
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}
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return $element;
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}
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/**
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* Generate a table with radios or checkboxes in the first column.
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*
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* @param unknown_type $element
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* @return unknown
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*/
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function theme_tableselect($element) {
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$rows = array();
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foreach ($element['#options'] as $key => $value) {
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$row = array();
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if ($element['#multiple']) {
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$row[] = theme('checkbox', $element[$key]);
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}
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else {
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$row[] = theme('radio', $element[$key]);
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}
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foreach ($element['#header'] as $fieldname => $title) {
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$row[] = $element['#options'][$key][$fieldname];
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}
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$rows[] = $row;
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}
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$first_col = $element['#advanced_select'] ? array(theme('table_select_header_cell')) : array('');
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$header = array_merge($first_col, $element['#header']);
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return theme('table', $header, $rows);
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}
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