Ruslan Kabalin
761670208a
This disables Submit button when the form has been submitted to prevent consequent submissions before the page has been loaded.
124 lines
3.9 KiB
PHP
124 lines
3.9 KiB
PHP
<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* submit type form element
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*
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* Contains HTML class for a submit type element
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*
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* @package core_form
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* @copyright 2006 Jamie Pratt <me@jamiep.org>
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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require_once("HTML/QuickForm/submit.php");
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/**
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* submit type form element
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*
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* HTML class for a submit type element
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*
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* @package core_form
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* @category form
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* @copyright 2006 Jamie Pratt <me@jamiep.org>
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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class MoodleQuickForm_submit extends HTML_QuickForm_submit {
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/** @var string Need to store id of form for submission control in JS*/
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var $_formid = '';
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/**
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* constructor
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*
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* @param string $elementName (optional) name of the field
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* @param string $value (optional) field label
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* @param string $attributes (optional) Either a typical HTML attribute string or an associative array
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*/
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function MoodleQuickForm_submit($elementName=null, $value=null, $attributes=null) {
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parent::HTML_QuickForm_submit($elementName, $value, $attributes);
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}
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/**
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* Called by HTML_QuickForm whenever form event is made on this element
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*
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* @param string $event Name of event
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* @param mixed $arg event arguments
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* @param object $caller calling object
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*/
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function onQuickFormEvent($event, $arg, &$caller)
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{
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switch ($event) {
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case 'createElement':
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$this->_formid = $caller->getAttribute('id');
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parent::onQuickFormEvent($event, $arg, $caller);
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if ($caller->isNoSubmitButton($arg[0])){
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//need this to bypass client validation
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//for buttons that submit but do not process the
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//whole form.
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$onClick = $this->getAttribute('onclick');
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$skip = 'skipClientValidation = true;';
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$onClick = ($onClick !== null)?$skip.' '.$onClick:$skip;
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$this->updateAttributes(array('onclick'=>$onClick));
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}
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return true;
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break;
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}
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return parent::onQuickFormEvent($event, $arg, $caller);
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}
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/**
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* Slightly different container template when frozen. Don't want to display a submit
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* button if the form is frozen.
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*
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* @return string
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*/
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function getElementTemplateType(){
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if ($this->_flagFrozen){
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return 'nodisplay';
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} else {
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return 'actionbuttons';
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}
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}
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/**
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* Freeze the element so that only its value is returned
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*/
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function freeze(){
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$this->_flagFrozen = true;
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}
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/**
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* Returns HTML for this form element.
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*
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* @return string
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*/
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function toHtml(){
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global $PAGE;
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$options = array(
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'submitid' => $this->getAttribute('id'),
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'formid' => $this->_formid,
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);
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$str = parent::toHtml();
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if ($this->getAttribute('onclick') === null) {
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$module = array('name'=>'form_submit', 'fullpath'=>'/lib/form/submit.js');
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$PAGE->requires->js_init_call('M.form_submit.init', array($options), true, $module);
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}
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return $str;
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}
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}
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