Develop Reference

jQuery UI 1.10: dialog and zIndex option

I have to make an dialog to apear when an image onclick. The problem is that I have some realy big z-index there (500 for example) and the ui dialog is on the back of that elements.
Here is the page, you need to log in, user: "raducup" and pass:"1". Another problem is that when I click close ont the dialog, the object desapears.
This is the function I call when a image is click:
function openItem(obiect){
$( obiect ).css('zIndex',9999);
$( obiect ).dialog({
dialogClass: "no-close",
modal: true,
draggable: true,
overlay: "background-color: red; opacity: 0.5",
buttons: [
{
text: "OK",
click: function() {
$( this ).dialog( "close" );
}
}
]
});
reparaZindex();
}

You don't tell it, but you are using jQuery UI 1.10.
In jQuery UI 1.10 the zIndex option is removed:
Removed zIndex option
Similar to the stack option, the zIndex option is unnecessary with a
proper stacking implementation. The z-index is defined in CSS and
stacking is now controlled by ensuring the focused dialog is the last
"stacking" element in its parent.
you have to use pure css to set the dialog "on the top":
.ui-dialog { z-index: 1000 !important ;}
you need the key !important to override the default styling of the element; this affects all your dialogs if you need to set it only for a dialog use the dialogClass option and style it.
If you need a modal dialog set the modal: true option see the docs:
If set to true, the dialog will have modal behavior; other items on
the page will be disabled, i.e., cannot be interacted with. Modal
dialogs create an overlay below the dialog but above other page
elements.
You need to set the modal overlay with an higher z-index to do so use:
.ui-front { z-index: 1000 !important; }
for this element too.

You may want to try jQuery dialog method:
$( ".selector" ).dialog( "moveToTop" );
reference: http://api.jqueryui.com/dialog/#method-moveToTop

Add in your CSS:
.ui-dialog { z-index: 1000 !important ;}

There are multiple suggestions here, but as far as I can see the jQuery UI guys have broken the dialogue control at present.
I say this because I include a dialogue on my page, and its semi transparent and the modal blanking div is behind some other elements. That can't be right!
In the end based on some other posts I developed this global solution, as an extension to the dialogue widget. It works for me but I'm not sure what it would do if I opened a dialogue from within a dialogue.
Basically it looks for the zIndex of everything else on the page and moves the .ui-widget-overlay to be one higher, and the dialogue itself to be one higher than that.
$.widget("ui.dialog", $.ui.dialog,
{
open: function ()
{
var $dialog = $(this.element[0]);
var maxZ = 0;
$('*').each(function ()
{
var thisZ = $(this).css('zIndex');
thisZ = (thisZ === 'auto' ? (Number(maxZ) + 1) : thisZ);
if (thisZ > maxZ) maxZ = thisZ;
});
$(".ui-widget-overlay").css("zIndex", (maxZ + 1));
$dialog.parent().css("zIndex", (maxZ + 2));
return this._super();
}
});
Thanks to the following, as this is where I got the info from of how to do this:
https://stackoverflow.com/a/20942857
http://learn.jquery.com/jquery-ui/widget-factory/extending-widgets/

Add this before calling dialog
$( obiect ).css('zIndex',9999);
And remove
zIndex: 700,
from dialog

moveToTop is the proper way.
z-Index is not correct. It works initially, but multiple dialogs will continue to float underneath the one you altered with z-index. No good.

To sandwich an my element between the modal screen and a dialog, I need to lift my element above the modal-screen, and then lift the dialog above my element.
I had a small success by doing the following after creating the dialog on element $dlg.
$dlg.closest('.ui-dialog').css('zIndex',adjustment);
Since each dialog has a different starting z-index (they incrementally get larger) I make adjustment a string with a boost value, like this:
const adjustment = "+=99";
However, jQuery just keeps increasing the zIndex value on the modal screen, so by the second dialog, the sandwich no longer worked. I gave up on ui-dialog "modal", made it "false", and just created my own modal. It imitates jQueryUI exactly. Here it is:
CoverAll = {};
CoverAll.modalDiv = null;
CoverAll.modalCloak = function(zIndex) {
var div = CoverAll.modalDiv;
if(!CoverAll.modalDiv) {
div = CoverAll.modalDiv = document.createElement('div');
div.style.background = '#aaaaaa';
div.style.opacity = '0.3';
div.style.position = 'fixed';
div.style.top = '0';
div.style.left = '0';
div.style.width = '100%';
div.style.height = '100%';
}
if(!div.parentElement) {
document.body.appendChild(div);
}
if(zIndex == null)
zIndex = 100;
div.style.zIndex = zIndex;
return div;
}
CoverAll.modalUncloak = function() {
var div = CoverAll.modalDiv;
if(div && div.parentElement) {
document.body.removeChild(div);
}
return div;
}

$(".ui-dialog").css("zIndex", 10000);

Add zIndex property to dialog object:
$(elm).dialog(
zIndex: 10000
);

Is it possible to not load an iframe in a hidden div, until the div is displayed?

Basically, a hidden div that's shown when a customer clicks on a link. That div displays a php formail that asks the customer questions about the product he/she is interested in.
Here's the code i found online that works great for me using jquery:
<script type="text/javascript">
$(document).ready(function(){
$('.show_hide').showHide({
speed: 500, // speed you want the toggle to happen
easing: '', // the animation effect you want. Remove this line if you dont want an effect and if you haven't included jQuery UI
changeText: 1, // if you dont want the button text to change, set this to 0
showText: 'REQUEST A QUOTE',// the button text to show when a div is closed
hideText: 'CLOSE' // the button text to show when a div is open
});
});
</script>
The css is just simple:
#slidingDiv, #slidingDiv_2{
height:300px;
background-color: #e2e2e2;
padding:20px;
margin-top:10px;
border-bottom:30px solid #000000;
display:none;
}
Here's the external java script:
(function ($) {
$.fn.showHide = function (options) {
//default vars for the plugin
var defaults = {
speed: 1000,
easing: '',
changeText: 0,
showText: 'Show',
hideText: 'Hide'
};
var options = $.extend(defaults, options);
$(this).click(function () {
$('.toggleDiv').slideUp(options.speed, options.easing);
// this var stores which button you've clicked
var toggleClick = $(this);
// this reads the rel attribute of the button to determine which div id to toggle
var toggleDiv = $(this).attr('rel');
// here we toggle show/hide the correct div at the right speed and using which easing effect
$(toggleDiv).slideToggle(options.speed, options.easing, function() {
// this only fires once the animation is completed
if(options.changeText==1){
$(toggleDiv).is(":visible") ? toggleClick.text(options.hideText) : toggleClick.text(options.showText);
}
});
return false;
});
};
})(jQuery);
Now it is my believe that in this code, the form would automatically load, even if not shown. I could be wrong, please correct me if so.
Question, how can i make sure this iframe inside the div would only load when the div is no longer hidden?

Rather than loading the iframe with its src attribute, load it instead with a data-src attribute. For its value, provide the eventual location you'd use when the parent div becomes visible.
<div class="hidden_element">
<iframe data-src="http://msdn.microsoft.com"></iframe>
</div>
When you show the parent div, issue a callback that takes the iframe attribute data-src, and sets its value to the src attribute of the iframe, causing it to load.
// Show our element, then call our callback
$(".hidden_element").show(function(){
// Find the iframes within our newly-visible element
$(this).find("iframe").prop("src", function(){
// Set their src attribute to the value of data-src
return $(this).data("src");
});
});
Demo: http://jsfiddle.net/bLUkk/

Jquery tabs: autoHeight for expanding content

I am using jquery sliding tabs from this SITE, which work very nice. The only problem is that the autoHeight jquery function does not adjust to expanding content. Rephrase: The tab container will ajust to the height of the inactive content but the issue is that once the content inside container becomes active and expands vertically it will no longer fit and not be seen <--- It fails to adjust to that. Here is the example JSFFIDLE
I try doing this to adjust the height to expanding content but it is not working:
<script>
var height = 50 // Set to the height you want
$('.st_view').css('height', height+'px')
});​
</script>
Overall Jquery
<script>
$(document).ready(function() {
$('div#st_horizontal').slideTabs({
// Options
contentAnim: 'slideH',
autoHeight: true,
contentAnimTime: 600,
contentEasing: 'easeInOutExpo',
tabsAnimTime: 300
});
var height = 50 // Set to the height you want
$('.st_view').css('height', height+'px')
});​
</script>

If it is only togglers that cause the content to expand, you can modify your toggler code like this:
$('#title').click(function() {
$(this).toggleClass('active');
$('#content').toggle();
var $tab = $(this).closest('.st_tab_view');
$tab.closest('.st_view').css('height', $tab.height());
});
For a more general solution, get the jQuery resize plugin, and add this code:
$('.st_tab_view').resize(function() {
var $this = $(this);
$this.closest('.st_view').css('height', $this.height());
});

Adjust jQuery Fancybox' iframe height dynamically according to changed contents inside

I'm using jQuery Fancybox to display forms in a modal window. I'm using the following code:
$("a.iframe").fancybox({
'padding': 0,
'width': 650,
'showCloseButton': false,
'hideOnContentClick': false,
'transitionIn': 'elastic',
'transitionOut': 'elastic',
'onComplete': function () {
$('#fancybox-frame').load(function () {
$('#fancybox-content').height($(this).contents().find('body').height() + 20);
});
}
});
With the additional onComplete function, I'm able to adjust the height of the iframe accordingly to the height of the contents inside.
However, I've hidden a few elements with jQuery's .hide() inside the iframe. Whenever I want to .show() these elements, the iframe itself doesn't resize along with the extra height of the now visible elements.
How can I accomplish this? Thanks!

Put the following function to the page
$.fn.ResizeFancy = function(){
$('#fancybox-content').height($('#fancybox-frame').contents().find('body').height() + 20);
};
After, trigger this function to your showHide function. For example;
function yourShowHideFn(){
//bla bla bla
$.fn.ResizeFancy();
}

How to refactor from using window.open(...) to an unobtrusive modal dhtml window?

I have a function which launches a javascript window, like this
function genericPop(strLink, strName, iWidth, iHeight) {
var parameterList = "location=0,directories=0,status=0,menubar=0,resizable=no, scrollbars=no,toolbar=0,maximize=0,width=" + iWidth + ", height=" + iHeight;
var new_window="";
new_window = open(strLink, strName, parameterList);
window.self.name = "main";
new_window.moveTo(((screen.availWidth/2)-(iWidth/2)),((screen.availHeight/2)-(iHeight/2)));
new_window.focus();
}
This function is called about 52 times from different places in my web application.
I want to re-factor this code to use a DHTML modal pop-up window. The change should be as unobtrusive as possible.
To keep this solution at par with the old solution, I think would also need to do the following
Provide a handle to "Close" the window.
Ensure the window cannot be moved, and is positioned at the center of the screen.
Blur the background as an option.
I thought this solution is the closest to what I want, but I could not understand how to incorporate it.
Edit: A couple of you have given me a good lead. Thank you. But let me re-state my problem here. I am re-factoring existing code. I should avoid any change to the present HTML or CSS. Ideally I would like to achieve this effect by keeping the function signature of the genericPop(...) same as well.

Here is my solution using jQuery and jQuery UI libraries. Your API is not changed , but parameter 'name' is ignored. I use iframe to load content from given strLink and then display that iframe as a child to generated div, which is then converted to modal pop-up using jQuery:
function genericPop(strLink, strName, iWidth, iHeight) {
var dialog = $('#dialog');
if (dialog.length > 0) {
dialog.parents('div.ui-dialog').eq(0).remove();
}
dialog = $(document.createElement('div'))
.attr('id', 'dialog')
.css('display', 'none')
.appendTo('body');
$(document.createElement('iframe'))
.attr('src', strLink)
.css('width', '100%')
.css('height', '100%')
.appendTo(dialog);
dialog.dialog({
draggable: false,
modal: true,
width: iWidth,
height: iHeight,
title: strName,
overlay: {
opacity: 0.5,
background: "black"
}
});
dialog.css('display', 'block');
}
// example of use
$(document).ready(function() {
$('#google').click(function() {
genericPop('http://www.google.com/', 'Google', 640, 480);
return false;
});
$('#yahoo').click(function() {
genericPop('http://www.yahoo.com/', 'Yahoo', 640, 480);
return false;
});
});
Documentation for jQuery UI/Dialog.

I use this dialog code to do pretty much the same thing.
If i remember correctly the default implementation does not support resizing the dialog. If you cant make with just one size you can modify the code or css to display multiple widths.
usage is easy:
showDialog('title','content (can be html if encoded)','dialog_style/*4 predefined styles to choose from*/');
Modifying the js to support multiple widths:
Add width and height as attributes to show dialog function and the set them to the dialog and dialog-content elements on line 68

Try Control.Window, which requires Prototype
Here's how I use it:
New Message
And in my Javascript file:
$(document).observe("dom:loaded", function() {
$$("a.popup_window").each(function(element) {
new Control.Modal(element, { overlayOpacity: 0.75,
className: 'modal',
method: 'get',
position: 'center' });
});
});
Now if you want to close the currently open popup do:
Control.Modal.current.close()