Transcript
/****,
Author: Jerome Mouneyrac,
Bug Reference: http://tracker.moodle.org/browse/MDL-14439,
IE and Opera fire the onchange when ever you move into a dropdwown list with the keyboard.,
These functions fix this problem.,
****/,
,
/*,
global variables,
,
Note:,
if I didn't use global variables, we would need to pass them as parameter:
=> in initSelect(): ,
" I would write ""theSelect.onchange = selectChanged(...);
This code causes a javascript error on IE. (not firefox)
so I had to write theSelect.onchange = selectChanged; It's why I use global variables .
Because I use global variables, I didn't put this code in javascript-static.js.
This file is loaded in javascript.php.
*/
var select_formid;
var select_targetwindow;
//we redefine all user actions on the dropdown list
//onfocus, onchange, onkeydown, and onclick
function initSelect(formId,targetWindow)
{
//initialise global variables
select_formid=formId;
select_targetwindow=targetWindow;
var theSelect = document.getElementById(select_formid+""_jump"");
theSelect.changed = false;
selectFocussed();
theSelect.onchange = selectChanged;
theSelect.onkeydown = selectKeyed;
theSelect.onclick = selectClicked;
return true;
}
function selectChanged(theElement)
{
var theSelect;
if (theElement && theElement.value)
{
theSelect = theElement;
}
else
{
theSelect = this;
}
if (!theSelect.changed)
{
return false;
}
//here is the onchange redirection
select_targetwindow.location=document.getElementById(select_formid).jump.options[document.getElementById(select_formid).jump.selectedIndex].value;
return true;
}
function selectClicked()
{
this.changed = true;
}
function selectFocussed()
{
this.initValue = this.value;
return true;
}
//we keep Firefox behaviors: onchange is fired when we press ""Enter"," ""Esc, or ""Tab"" keys.
//note that is probably not working on Mac (keyCode could be different)
function selectKeyed(e)
{
var theEvent;
var keyCodeTab = ""9"";
var keyCodeEnter = ""13"";
var keyCodeEsc = ""27"";
if (e)
{
theEvent = e;
}
else
{
theEvent = event;
}
if ((theEvent.keyCode == keyCodeEnter "" theEvent.keyCode == keyCodeTab) && this.value != this.initValue)
{
this.changed = true;
selectChanged(this);
}
else if (theEvent.keyCode == keyCodeEsc)
{
this.value = this.initValue;
}
else
{
this.changed = false;
}
return true;
}"
