Mega Code Archive
Document for the Modeless Dialog Box
<![CDATA[
/*
JavaScript Bible, Fourth Edition
by Danny Goodman
John Wiley & Sons CopyRight 2001
*/
<HTML>
<HEAD>
<TITLE>User Preferences</TITLE>
<SCRIPT LANGUAGE="JavaScript">
// Close the dialog
function closeme() {
window.close()
}
// Handle click of OK button
function handleOK() {
var returnFunc = window.dialogArguments
returnFunc(getFormData())
closeme()
}
// Handle click of Apply button
function handleApply() {
var returnFunc = window.dialogArguments
returnFunc(getFormData())
}
// Handle click of Cancel button
function handleCancel() {
window.returnValue = ""
closeme()
}
// Generic function converts form element name-value pairs
// into an array
function getFormData() {
var form = document.prefs
var returnedData = new Array()
// Harvest values for each type of form element
for (var i = 0; i < form.elements.length; i++) {
if (form.elements[i].type == "text") {
returnedData[form.elements[i].name] = form.elements[i].value
} else if (form.elements[i].type.indexOf("select") != -1) {
returnedData[form.elements[i].name] =
form.elements[i].options[form.elements[i].selectedIndex].value
} else if (form.elements[i].type == "radio") {
returnedData[form.elements[i].name] = form.elements[i].value
} else if (form.elements[i].type == "checkbox") {
returnedData[form.elements[i].name] = form.elements[i].value
} else continue
}
return returnedData
}
// Initialize by setting form elements from passed data
function init(currPrefs) {
if (currPrefs) {
var form = document.prefs
if (currPrefs["name"]) {
form.name.value = currPrefs["name"]
}
if (currPrefs["bgColor"]) {
setSelected(form.bgColor, currPrefs["bgColor"])
}
if (currPrefs["textColor"]) {
setSelected(form.textColor, currPrefs["textColor"])
}
if (currPrefs["h1Size"]) {
setSelected(form.h1Size, currPrefs["h1Size"])
}
}
}
// Utility function to set a SELECT element to one value
function setSelected(select, value) {
for (var i = 0; i < select.options.length; i++) {
if (select.options[i].value == value) {
select.selectedIndex = i
break
}
}
return
}
// Utility function to accept a press of the
// Enter key in the text field as a click of OK
function checkEnter() {
if (window.event.keyCode == 13) {
handleOK()
}
}
</SCRIPT>
</HEAD>
<BODY BGCOLOR="#eeeeee" onLoad="init()">
<H2>Web Site Preferences</H2>
<HR>
<TABLE BORDER=0 CELLSPACING=2>
<FORM NAME="prefs" onSubmit="return false">
<TR>
<TD>Enter your first name:<INPUT NAME="name" TYPE="text" VALUE="" SIZE=20 onKeyDown="checkEnter()">
</TR>
<TR>
<TD>Select a background color:
<SELECT NAME="bgColor">
<OPTION VALUE="beige">Beige
<OPTION VALUE="antiquewhite">Antique White
<OPTION VALUE="goldenrod">Goldenrod
<OPTION VALUE="lime">Lime
<OPTION VALUE="powderblue">Powder Blue
<OPTION VALUE="slategray">Slate Gray
</SELECT>
</TR>
<TR>
<TD>Select a text color:
<SELECT NAME="textColor">
<OPTION VALUE="black">Black
<OPTION VALUE="white">White
<OPTION VALUE="navy">Navy Blue
<OPTION VALUE="darkorange">Dark Orange
<OPTION VALUE="seagreen">Sea Green
<OPTION VALUE="teal">Teal
</SELECT>
</TR>
<TR>
<TD>Select "Welcome" heading font point size:
<SELECT NAME="h1Size">
<OPTION VALUE="12">12
<OPTION VALUE="14">14
<OPTION VALUE="18">18
<OPTION VALUE="24">24
<OPTION VALUE="32">32
<OPTION VALUE="48">48
</SELECT>
</TR>
</TABLE>
</FORM>
<DIV STYLE="position:absolute; left:120px; top:220px">
<BUTTON STYLE="width:80px" onClick="handleOK()">OK</BUTTON>
<BUTTON STYLE="width:80px" onClick="handleCancel()">Cancel</BUTTON>
<BUTTON STYLE="width:80px" onClick="handleApply()">Apply</BUTTON>
</DIV>
</BODY>
</HTML>
]]>