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/*
* JavaScript functions in survey taking
*
* This file is part of LimeSurvey
* Copyright (C) 2007-2026 The LimeSurvey Project Team
* All rights reserved.
* License: GNU/GPL License v2 or later, see LICENSE.php
* LimeSurvey is free software. This version may have been modified pursuant
* to the GNU General Public License, and as distributed it includes or
* is derivative of works licensed under the GNU General Public License or
* other free or open source software licenses.
* See COPYRIGHT.php for copyright notices and details.
*/
// Some function can be launch before document ready (and seems intersting)
// But put it in ready : allowing update by template.js (before moving at end of HTML : best place */
$(document).on('ready pjax:scriptcomplete',function()
{
tableCellAdapters();
doToolTipTable();
if (typeof LEMsetTabIndexes === 'function') { LEMsetTabIndexes(); }
if (typeof checkconditions!='undefined') checkconditions();
if (typeof template_onload!='undefined') template_onload();
if (typeof(focus_element) != 'undefined')
{
$(focus_element).focus();
}
// Keypad functions
var kp = $("input.num-keypad");
if(kp.length)
{
kp.keypad({
showAnim: 'fadeIn', keypadOnly: false,
onKeypress: function(key, value, inst) {
$(this).trigger('keyup');
}
});
}
kp = $(".text-keypad");
if(kp.length)
{
var spacer = $.keypad.HALF_SPACE;
for(var i = 0; i != 8; ++i) spacer += $.keypad.SPACE;
kp.keypad({
showAnim: 'fadeIn',
keypadOnly: false,
layout: [
spacer + $.keypad.CLEAR + $.keypad.CLOSE, $.keypad.SPACE,
'!@#$%^&*()_=' + $.keypad.HALF_SPACE + $.keypad.BACK,
$.keypad.HALF_SPACE + '`~[]{}<>\\|/' + $.keypad.SPACE + $.keypad.SPACE + '789',
'qwertyuiop\'"' + $.keypad.HALF_SPACE + $.keypad.SPACE + '456',
$.keypad.HALF_SPACE + 'asdfghjkl;:' + $.keypad.SPACE + $.keypad.SPACE + '123',
$.keypad.SPACE + 'zxcvbnm,.?' + $.keypad.SPACE + $.keypad.SPACE + $.keypad.HALF_SPACE + '-0+',
$.keypad.SHIFT + $.keypad.SPACE_BAR + $.keypad.ENTER],
onKeypress: function(key, value, inst) {
$(this).trigger('keyup');
}
});
}
// Maxlength for textareas TODO limit to not CSS3 compatible browser
maxlengthtextarea();
});
/**
* setJsVar : Get all global used var
* @deprecated in 3.0.0 not lauched under certain condition … …
*/
function setJsVar(){
bFixNumAuto=LSvar.bFixNumAuto;
bNumRealValue=LSvar.bNumRealValue;
LEMradix=LSvar.sLEMradix;
numRegex = new RegExp('[^-\.,0-9]','g');
intRegex = new RegExp('[^-0-9]','g');
}
/**
* Adapt cell to have a click on cell do a click on input:radio or input:checkbox (if unique)
* Using delegate the can be outside document.ready (using .on is possible but on $(document) then : less readbale
* @author Denis Chenu / Shnoulle
*/
function tableCellAdapters()
{
$(".ls-answers tbody").on('click',' td',function(event) {// 'table.question tbody td' or 'td.radio-item,td.checkbox-item': maybe less js here
var eventTarget=$(event.target).prop("tagName");// Alternative us data
var eventActivate=$(this).find("input:radio,input:checkbox");
if(eventActivate.length==1 && (eventTarget!='INPUT' && eventTarget!='LABEL' ) )
{
$(eventActivate).click();
$(eventActivate).triggerHandler("click");
// Why not use trigger('click'); only ?
}
});
}
Array.prototype.push = function()
{
var n = this.length >>> 0;
for (var i = 0; i < arguments.length; i++)
{
this[n] = arguments[i];
n = n + 1 >>> 0;
}
this.length = n;
return n;
};
Array.prototype.pop = function() {
var n = this.length >>> 0, value;
if (n) {
value = this[--n];
delete this[n];
}
this.length = n;
return value;
};
//defined in group.php & question.php & survey.php, but a static function
function inArray(needle, haystack)
{
for (h in haystack)
{
if (haystack[h] == needle)
{
return true;
}
}
return false;
}
//defined in group.php & survey.php, but a static function
function match_regex(testedstring,str_regexp)
{
// Regular expression test
if (str_regexp == '' || testedstring == '') return false;
pattern = new RegExp(str_regexp);
return pattern.test(testedstring)
}
function addHiddenField(theform,thename,thevalue)
{
var myel = document.createElement('input');
myel.type = 'hidden';
myel.name = thename;
theform.appendChild(myel);
myel.value = thevalue;
}
function cancelBubbleThis(eventObject)
{
if (!eventObject) var eventObject = window.event;
eventObject.cancelBubble = true;
if (eventObject && eventObject.stopPropagation) {
eventObject.stopPropagation();
}
}
function cancelEvent(e)
{
e = e ? e : window.event;
if(e.stopPropagation)
e.stopPropagation();
if(e.preventDefault)
e.preventDefault();
e.cancelBubble = true;
e.cancel = true;
e.returnValue = false;
return false;
}
function hookEvent(element, eventName, callback)
{
if(typeof(element) == "string")
element = document.getElementById(element);
if(element == null)
return;
if(element.addEventListener)
{
if(eventName == 'mousewheel')
element.addEventListener('DOMMouseScroll', callback, false);
element.addEventListener(eventName, callback, false);
}
else if(element.attachEvent)
element.attachEvent("on" + eventName, callback);
}
function noScroll(e)
{
e = e ? e : window.event;
cancelEvent(e);
}
function getkey(e)
{
if (window.event) return window.event.keyCode;
else if (e) return e.which; else return null;
}
function goodchars(e, goods)
{
var key, keychar;
key = getkey(e);
if (key == null) return true;
// get character
keychar = String.fromCharCode(key);
keychar = keychar.toLowerCase();
goods = goods.toLowerCase();
// check goodkeys
if (goods.indexOf(keychar) != -1)
return true;
// control keys
if ( key==null || key==0 || key==8 || key==9 || key==27 )
return true;
// else return false
return false;
}
function show_hide_group(group_id)
{
var questionCount;
// First let's show the group description, otherwise, all its childs would have the hidden status
$("#group-" + group_id).show();
// If all questions in this group are conditionnal
// Count visible questions in this group
questionCount=$("div#group-" + group_id).find("div[id^='question']:visible").size();
if( questionCount == 0 )
{
$("#group-" + group_id).hide();
}
}
// round function from phpjs.org
function round (value, precision, mode) {
// http://kevin.vanzonneveld.net
var m, f, isHalf, sgn; // helper variables
precision |= 0; // making sure precision is integer
m = Math.pow(10, precision);
value *= m;
sgn = (value > 0) | -(value < 0); // sign of the number
isHalf = value % 1 === 0.5 * sgn;
f = Math.floor(value);
if (isHalf) {
switch (mode) {
case 'PHP_ROUND_HALF_DOWN':
value = f + (sgn < 0); // rounds .5 toward zero
break;
case 'PHP_ROUND_HALF_EVEN':
value = f + (f % 2 * sgn); // rouds .5 towards the next even integer
break;
case 'PHP_ROUND_HALF_ODD':
value = f + !(f % 2); // rounds .5 towards the next odd integer
break;
default:
value = f + (sgn > 0); // rounds .5 away from zero
}
}
return (isHalf ? value : Math.round(value)) / m;
}
/* Maxlengt on textarea */
function maxlengthtextarea(){
// Calling this function at document.ready : use maxlength attribute on textarea
// Can be replaced by inline javascript
$("textarea[maxlength]").change(function(){ // global solution
var maxlen=$(this).attr("maxlength");
if ($(this).val().length > maxlen) {
$(this).val($(this).val().substring(0, maxlen));
}
});
$("textarea[maxlength]").keyup(function(){ // For copy/paste (not for all browser)
var maxlen=$(this).attr("maxlength");
if ($(this).val().length > maxlen) {
$(this).val($(this).val().substring(0, maxlen));
}
});
$("textarea[maxlength]").keydown(function(event){ // No new key after maxlength
var maxlen=$(this).attr("maxlength");
var k =event.keyCode;
if (($(this).val().length >= maxlen) &&
!(k == null ||k==0||k==8||k==9||k==13||k==27||k==37||k==38||k==39||k==40||k==46)) {
// Don't accept new key except NULL,Backspace,Tab,Enter,Esc,arrows,Delete
return false;
}
});
}
/**
* Add a title on cell with answer
* Title must be updated because label can be updated by expression : mouseover do it only if needed. Accessibility must use aria-labelledby
**/
function doToolTipTable()
{
$(document).on("mouseover"," td.answer-item",function() {
var text = $(this).find('label').text().trim();
if(text!==""){
$(this).attr('title', text);
}else{
$(this).removeAttr('title');
}
});
}