Develop Reference

jQuery animate works different in IE

I have a script that displays fixed element on the bottom-right corner of the screen. This element must appear from bottom to top, as it does in Chrome and Firefox, but in IE it goes from top to bottom..
CSS:
.questionnaire {
position: fixed;
right: 25px;
z-index: 150;
display: none;
}
and JS:
(function($) {
$(document).ready(function() {
var cookie = $.cookie('smth');
resizeContent();
if (cookie == 'que') {
$('.questionnaire').css('display', 'block').animate({ top: collapsed }, 2000);
$('.questionnaire span').addClass('collapsed');
} else {
$.cookie('smth', 'que', { path: '/', expires: 1000*60*20 });
$('.questionnaire').css('display', 'block').animate({ top: expanded }, 2000);
$('.questionnaire span').removeClass('collapsed');
}
});
function resizeContent() {
windowHeight = window.innerHeight ? window.innerHeight : $(window).height();
expanded = windowHeight - $('.questionnaire').height() + 'px';
collapsed = windowHeight - $('.questionnaire').height() + 238 + 'px';
}
})(jQuery);
Thanks in advance for any help!

Actually you do not need to do your animation in jQuery. You can limit your code to add remove class. CSS is more optimal way, no inline code and grater performance.
$("#col").click(function() {
$('.questionnaire').removeClass('expanded');
});
$("#ex").click(function() {
$('.questionnaire').addClass('expanded');
});
.questionnaire {
position: fixed;
background-color: red;
right: 25px;
bottom: 0px;
height: 0px;
z-index: -150; /* remove minus */
display: block;
width: 500px;
transition: height 2s;
-webkit-transition: height 2s;
}
.expanded {
height: 230px;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<button type="button" id="col">Collapse</button>
<button type="button" id="ex">Expand</button>
<div class="questionnaire"></div>
Since this element is fixed there is no need to set it's display to none. This works the same on any browser that support transition.

How do you create 3 adjustable divs?

What I want:
| A | | B | | C |
^ ^
When you move the handles left and right A, B, and C resize accordingly
| A | | B | | C |
What I have is the || between B and C sliding, but not resizing B and all I get on the other one is the resize cursor. Basically C is a curtain and covers A and B. I did get min size working for C.
| A | C |
I broke somebody else's perfectly good code to get this far:
var isResizing = false,
who='',
lastDownX = 0;
$(function () {
var container = $('#container'),
left = $('#left'),
right = $('#right'),
middle = $('#middle'),
hand2 = $('#hand2'),
handle = $('#handle');
handle.on('mousedown', function (e) {
isResizing = true;
who=e.target.id;
lastDownX = e.clientX;
});
$(document).on('mousemove', function (e) {
var temp, min;
// we don't want to do anything if we aren't resizing.
if (!isResizing)
return;
min=container.width() * 0.1;
temp = container.width() - (e.clientX - container.offset().left);
if (temp < min)
temp = min;
if (who == 'handle')
right.css('width', temp);
if (who == 'hand2')
left.css('width', temp);
}).on('mouseup', function (e) {
// stop resizing
isResizing = false;
});
});
body, html {
width: 100%;
height: 100%;
margin: 0;
padding: 0;
}
#container {
width: 100%;
height: 100%;
/* Disable selection so it doesn't get annoying when dragging. */
-webkit-touch-callout: none;
-webkit-user-select: none;
-khtml-user-select: none;
-moz-user-select: moz-none;
-ms-user-select: none;
user-select: none;
}
#container #left {
width: 40%;
height: 100%;
float: left;
background: red;
}
#container #middle {
margin-left: 40%;
height: 100%;
background: green;
}
#container #right {
position: absolute;
right: 0;
top: 0;
bottom: 0;
width: 200px;
background: rgba(0, 0, 255, 0.90);
}
#container #handle {
position: absolute;
left: -4px;
top: 0;
bottom: 0;
width: 80px;
cursor: w-resize;
}
#container #hand2 {
position: absolute;
left: 39%;
top: 0;
bottom: 0;
width: 80px;
cursor: w-resize;
}
<div id="container">
<!-- Left side -->
<div id="left"> This is the left side's content!</div>
<!-- middle -->
<div id="middle">
<div id="hand2"></div> This is the middle content!
</div>
<!-- Right side -->
<div id="right">
<!-- Actual resize handle -->
<div id="handle"></div> This is the right side's content!
</div>
</div>
Been playing with it here: https://jsfiddle.net/ju9zb1he/5/

I was looking for a solution that required less extensive CSS. It does have one minor bug(FIXED), but hopefully this should get you started. Here is a DEMO.
Also I aimed to use DOM Traversal methods like .next() and .prev() that way it wouldn't be so attribute dependent, and would be easily reusable if you needed a feature like this multiple times on a page.
Edit - Further Explanation
The idea here is onClick of a .handle we want to gather the total width (var tWidth) of the .prev() and .next() divs relative to the .handle in the DOM. We can then use the start mouse position (var sPos) to substract the amount of pixels we've moved our mouse (e.pageX). Doing so gives us the correct width that the .prev() div should have on mousemove. To get the width of the .next() div we need only to subtract the width of the .prev() div from the total width (var tWidth) that we stored onClick of the .handle. Hope this helps! Let me know if you have any further questions, however I will likely be unavailable till tomorrow.
HTML
<div class="container">
<div id="left"></div>
<div id="l-handle" class="handle"></div>
<div id="middle"></div>
<div id="r-handle" class="handle"></div>
<div id="right"></div>
</div>
CSS
#left, #middle, #right {
display: inline-block;
background: #e5e5e5;
min-height: 200px;
margin: 0px;
}
#l-handle, #r-handle {
display: inline-block;
background: #000;
width: 2px;
min-height: 200px;
cursor: col-resize;
margin: 0px;
}
jQuery
var isDragging = false,
cWidth = $('.container').width(),
sPos,
handle,
tWidth;
$('#left, #middle, #right').width((cWidth / 3) - 7); // Set the initial width of content sections
$('.handle').on('mousedown', function(e){
isDragging = true;
sPos = e.pageX;
handle = $(this);
tWidth = handle.prev().width() + handle.next().width();
});
$(window).on('mouseup', function(e){
isDragging = false;
});
$('.container').on('mousemove', function(e){
if(isDragging){ // Added an additional condition here below
var cPos = sPos - e.pageX;
handle.prev().width((tWidth / 2) - cPos); // This was part of the bug...
handle.next().width(tWidth - handle.prev().width());
// Added an update to sPos here below
}
});
Edit
The bug was caused by 2 things.
1) On mousemove we were dividing the total width by two, instead of an updated mouse offset.
2) The sPos was not updating on mousemove, and stayed a static number based off of the click location.
Resolution
Update the sPos on mousemove that way the mouse offset is accurately based off of the previous mousemove position, rather than the click position. When this is done we can then subtract the .next() div's width from the total width. Then we subtract our current mouse position from the remaining width. The fiddle has been updated as well.
$('.container').on('mousemove', function(e){
var cPos = sPos - e.pageX;
if(isDragging && ((tWidth - handle.next().width()) - cPos) <= tWidth){
handle.prev().width((tWidth - handle.next().width()) - cPos);
handle.next().width(tWidth - handle.prev().width());
sPos = e.pageX;
}
});
Edit
Added an additional condition on mousemove to prevent the drag from exceeding the total width (var tWidth).

Can you please explain what you're trying to accomplish?
I don't believe you need to use position: absolute. The premise of absolute positioning is to override the margin and padding imposed on an element by its parent.
You don't need to do this, all elements have relative positioning by default which makes them push eachother around and don't allow overlapping.
I'm probably missing something, but I think this is what you want with nothing but some very basic CSS: http://jsfiddle.net/3bdoazpk/
<div class='first'>
asdf
</div><div class='second'>
dasdf
</div><div class='third'>
sadf
</div>
body {
margin: 0;
}
div {
display: inline-block;
height: 100%;
}
.first, .third {
width: 40%;
}
.first {
background-color: red;
}
.second {
background-color: blue;
width: 20%;
}
.third {
background-color: green;
}

how do I center javascript css popup div, no matter what the screen resolution?

I have the following code that opens a new popup window while disabling the background, the problem is that I have to position this so that it's 100px from the top (already got that through the CSS #dialog) and also in the center of the screen, no matter what the user's resolution is?
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<script type="text/javascript">
function showPopUp(el) {
var cvr = document.getElementById("cover")
var dlg = document.getElementById(el)
cvr.style.display = "block"
dlg.style.display = "block"
if (document.body.style.overflow = "hidden") {
cvr.style.width = "1024"
cvr.style.height = "100%"
}
}
function closePopUp(el) {
var cvr = document.getElementById("cover")
var dlg = document.getElementById(el)
cvr.style.display = "none"
dlg.style.display = "none"
document.body.style.overflowY = "scroll"
}
</script>
<style type="text/css">
#cover {
display: none;
position: absolute;
left: 0px;
top: 0px;
width: 100%;
height: 100%;
background: gray;
filter: alpha(Opacity = 50);
opacity: 0.5;
-moz-opacity: 0.5;
-khtml-opacity: 0.5
}
#dialog {
display: none;
left: 100px;
top: 100px;
width: 300px;
height: 300px;
position: absolute;
z-index: 100;
background: white;
padding: 2px;
font: 10pt tahoma;
border: 1px solid gray
}
</style>
</head>
<body>
<div id="cover"></div>
<div id="dialog">
My Dialog Content
<br><input type="text">
<br><input type="button" value="Submit">
<br>[Close]
</div>
Show
</body>
</html>

CSS based solution to center:
You need to use these styles to make it appear dead-center:
position:absolute;
top:50%;
left:50%;
width:400px; /* adjust as per your needs */
height:400px; /* adjust as per your needs */
margin-left:-200px; /* negative half of width above */
margin-top:-200px; /* negative half of height above */
So position should be specified. The top and left should be 50%. The margin-left and margin-top should be negative one half of the width and height of the box respectively.
Notice that if you want your popup to appear on center even when page is scrolled you will have to use position:fixed instead with the draw back that it doesn't work in IE6.

Just do this:
.body {
position: relative;
}
.popup {
position: absolute;
max-width: 800px;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
}
no matters the screen or popup size. This will center the <div class="popup"></div>.

What you need is called a light-box.
To create it you should modify HTML,CSS and JS code.
Let's say your lightbox consist only of the string "login form". (You can put everything you want there) The HTML code should look like this:
<div id = "loginBox">login form</div>
Now, we need to hide it with CSS:
div#loginBox {
display: none;
}
Now our box is not visible. Lets modify our box as you want it to be 100px from the top:
div#loginBox {
display: none;
top: 100px;
}
We will worry about disabling the background later.
Our next job is to make a button that will display the box when we need it. Easy-peasy:
<div id = "loginBox" >login form</div>
<a id = "displayButton">login</a>
Note that we don't need the "href" attribute, because that will move the screen on clicking and other unwanted behavior.
Let's attach event handler on the button via JS:
var IE = document.all ? true : false; // obligatory "browser sniffing"
function display_box() {
document.getElementsById("loginBox").style.display = "inline-block"; // or "inline"
}
window.onload = function() {
var login_box = document.getElementsById("loginBox");
if (!IE) {
login_box.addEventListener( "click", display_box , false );
}
else {
login_box.attachEvent( "onclick", display_box );
}
}
But you want it to be in the center of the screen? Then the function goes like this:
function display_box() {
var theBox = document.getElementsById("loginBox").style,
left = document.width / 2 - 50; // 150 because it is 300 / 2
theBox.display = "inline-block";
theBox.left = left.toString() + "px";
}
I would guess that you will want to close the window at some point and make the "disabled background" effect. To do so you can create a div class that extends on the whole screen, attach a "display" event on it, put some z-index in the css to be sure the loginBox is over the "disabled background", and attach a "close the loginBox" event on the "background" div. And now the final code looks like this:
Note that we care only about the placement of the login-button, because the other are hidden from view, and then modified by JS:
HTML:
<div id = "loginBox" >login</div>
<a id = "displayButton">login</a>
<div id = "backgroundDarkener"> </div>
CSS:
div#loginBox {
display: none;
top: 100px;
width: 300px; #it is important to know the width of the box, to center it correctly
z-index: 2;
}
div#backgroundDarkener {
background: #000;
display: none;
position: fixed;
top: 0px;
left: 0px;
width: 100%;
height: 100%;
z-index: 1;
opacity: 0.8;
# needless to say, you should play with opacity or if you want your
# css to validate - background image (because I suspect it won't
# validate for old versions of IE, Safari, etc.) This is just a suggestion
}
JS:
var IE = document.all ? true : false; // obligatory "browser sniffing"
function display_box() {
var theBox = document.getElementsById("loginBox").style,
background = document.getElementsById("loginBox").style,
left = document.width / 2 - 150; // 150 is 300 / 2
theBox.display = "inline-block";
theBox.left = left.toString() + "px";
background.display = "inline-block";
}
function hide_box() {
document.getElementsById("loginBox").style.display = "none";
document.getElementsById("backgroundDarkener").style.display = "none";
}
window.onload = function() {
var login_box = document.getElementsById("loginBox"),
background = document.getElementsById("backgroundDarkener");
if (!IE) {
login_box.addEventListener( "click", display_box , false );
background.addEventListener( "click", hide_box , false );
}
else {
login_box.attachEvent( "onclick", display_box );
background.attachEvent( "onclick", hide_box );
}
}

A quick Google search found this;
function PopupCenter(pageURL, title,w,h) {
var left = (screen.width/2)-(w/2);
var top = (screen.height/2)-(h/2);
var targetWin = window.open (pageURL, title, 'toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=no, resizable=no, copyhistory=no, width='+w+', height='+h+', top='+top+', left='+left);
}

This is where flexbox comes rescue now!
.parent {
display: flex;
height: 300px; /* Or whatever */
}
.child {
width: 100px; /* Or whatever */
height: 100px; /* Or whatever */
margin: auto; /* Magic! */
}

You need to use these styles to make div center:
width:500px;
left:0;
right:0;
margin:0 auto;

Simple, margin: 100px auto;. There's no need to do calculations in JavaScript.
Live Example

IE 9 has opacity on a child element and I cant stop it using captify

Ok I am using a piece of javascript called Captify. It adds a small pop up to images for you with text in. Works great in all browsers accept IE9. IE9 fades everything within the popup div. I have read its a child element issue but I can not fix it. As captify can not be found anywhere online any more I will include all the code for that along with the css below then the code on my page. If anyone could help me stop the fade I would be very grateful as it has coursed me major problems.
Java
jQuery.fn.extend({
captify: function(o){
var o = $.extend({
speedOver: 'fast', // speed of the mouseover effect
speedOut: 'normal', // speed of the mouseout effect
hideDelay: 500, // how long to delay the hiding of the caption after mouseout (ms)
animation: 'fade', // 'fade' or 'slide'
prefix: '', // text/html to be placed at the beginning of every caption
className: 'caption' // the name of the CSS class to apply to the caption box
}, o);
$(this).each(function(){
var img = this;
$(this).load(function(){
$this = img;
if (this.hasInit){
return false;
}
this.hasInit = true;
var over_caption = false;
var over_img = false;
//pull the label from another element if there if there is a
//valid element id inside the rel="..." attribute, otherwise,
//just use the text in the title="..." attribute.
var captionLabelSrc = $('#' + $(this).attr('rel'));
var captionLabelTitle = !captionLabelSrc.length ? $(this).attr('title') : captionLabelSrc.html();
var captionLabelHTML = !captionLabelTitle.length ? $(this).attr('alt') : captionLabelTitle;
captionLabelSrc.remove();
var toWrap = this.parent && this.parent.tagName == 'a' ? this.parent : $(this);
var wrapper = toWrap.wrap('<div></div>').parent();
wrapper.css({
overflow: 'hidden',
padding: 0,
fontSize: 0.1
})
wrapper.addClass('caption-wrapper');
wrapper.width($(this).width());
wrapper.height($(this).height());
//transfer the border properties from the image to the wrapper
$.map(['top','right','bottom','left'], function(i){
$.map(['style','width','color'], function(j){
var key = 'border-'+i+'-'+j;
wrapper.css(key, $(img).css(key));
});
});
$(img).css({border: '0 none'});
//transfer the margin properties
$.map(['top','right','bottom','left'], function(t){
var key = 'margin-'+t;
wrapper.css(key, $(img).css(key));
});
//create two consecutive divs, one for the semi-transparent background,
//and other other for the fully-opaque label
var caption = $('div:last', wrapper.append('<div></div>')).addClass(o.className);
var captionContent = $('div:last', wrapper.append('<div></div>')).addClass(o.className).append(o.prefix).append(captionLabelHTML);
//override hiding from CSS, and reset all margins (which could have been inherited)
$('*',wrapper).css({margin: 0}).show();
//ensure the background is on bottom
var captionPositioning = jQuery.browser.msie ? 'static' : 'relative';
caption.css({
zIndex: 1,
position: captionPositioning
});
//clear the backgrounds/borders from the label, and make it fully-opaque
captionContent.css({
position: captionPositioning,
zIndex: 2,
background: 'none',
border: '0 none',
opacity: 1.0
});
caption.width(captionContent.outerWidth());
caption.height(captionContent.outerHeight());
//pull the label up on top of the background
captionContent.css({ 'marginTop': -caption.outerHeight() });
//function to push the caption out of view
var cHide = function(){
if (!over_caption && !over_img)
caption.animate({ marginTop: 0 }, o.speedOut);
};
//when the mouse is over the image
$(this).hover(
function(){
over_img = true;
if (!over_caption) {
caption.animate({
marginTop: -caption.height()
}, o.speedOver);
}
},
function(){
over_img = false;
window.setTimeout(cHide, o.hideDelay);
}
);
//when the mouse is over the caption on top of the image (the caption is a sibling of the image)
$('div', wrapper).hover(
function(){ over_caption = true; },
function(){ over_caption = false; window.setTimeout(cHide, o.hideDelay); }
);
});
//if the image has already loaded (due to being cached), force the load function to be called
if (this.complete || this.naturalWidth > 0){
$(img).trigger('load');
}
});
}
});
Now the CSS for captify
/* caption styling */
.caption {
color: #ffffff;
padding: 0.6em;
font-size: 10px;
display: none;
cursor: default;
/* remove these 4 lines below if you want
the caption to span the whole width of the
image
width: 82%;
/*border-top: 1px solid #303030;
border-right: 1px solid #303030;*/
/* background / transparency */
background: #000000;
opacity: 0.7;
filter: alpha(opacity=70);
-moz-opacity: 0.7;
-khtml-opacity: 0.7;
margin-bottom: 5px;
}
.caption a {
border: 0 none;
text-decoration: none;
background: #000000;
padding: 0.3em;
color:#FFFF00;
}
.caption a:hover {
text-decoration:underline;
}
.caption-wrapper {
float: left;
}
br.c { clear: both; }
now my page
<link href="/js/captify/sample.css" rel="stylesheet" type="text/css" /><script type="text/javascript" src="/js/captify/captify.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$('img.captify').captify({
// all of these options are... optional
// ---
// speed of the mouseover effect
speedOver: 150,
// speed of the mouseout effect
speedOut: 200,
// how long to delay the hiding of the caption after mouseout (ms)
hideDelay: 100,
// 'fade' or 'slide'
animation: 'fade',
// text/html to be placed at the beginning of every caption
prefix: '',
// the name of the CSS class to apply to the caption box
className: 'caption'
});
});
</script>
<div id="services">
<ul >
<li >
<img src="/images/sports.png" width="169" height="121" class="captify" rel="caption1" />
<div id="caption1"><h4>Watersports</h4>
<p>View all the sports we offer on the lakeside.</p></div>
</li></ul></div>
and the extra css i use
#services {
width: 570px;
margin-top: 370px;
height: 130px;
}
#services ul li {
float: left;
height: 128px;
width: 184px;
margin-right: 5px;
}

Since IE opacity handling sucks I suggest you ditch all together. For the background, you can use a transparent png(1x1 repeating) to get the same effect. Or if you are using IE only css, you can define the background to use the png for IE only. I think this will save you lots of time trying to get across this issue
Edit: of course do not forget to set opacity to one in the IE css

I know this question is old but someone might find this useful:
I did this in my page;
$('img.captify').captify({
animation: 'always-on',
opacity: '0.7'
});
$('div.caption-bottom').wrapInner('<span class="caption-text"></span>');
And in the style sheet I put this;
.caption-text{position:absolute;}

#Mark King,
thanks it works for me
but i changed absolute to relative instead.
.caption-text{
display:block;
position:relative;
}

Slide Element Up Into Page?

I was wondering how I could slide up a banner at the bottom of my page that is hidden.
For instance:
Page loads
3 seconds later, the banner slides up from bottom of page
I want to be able to do this without any scrollbars appearing (no change in page height) and without revealing the banner prior to it sliding up.
I looked at slideUp() and slideToggle(), but I couldn't find a way to make it work to my liking :-/
Here's what I originally tried:
$(document).ready(function() {
$('.serverad').delay(3000).slideToggle('slow', function() {
// Animation complete.
});
});
And the CSS was visiblity: hidden;

use a position:fixed on the banner ad, and animate the bottom attribute to 0
have the initial bottom attribute be the a negative of its height.
<style>
.serverad
{
height:60px;
position:fixed;
left:0px;
bottom:-60px;
}
</style>
<script>
$(document).ready(function() {
$('.serverad').delay(3000).animate({bottom:"0px"},600);
});
</script>

I think you may want something along these lines:
HTML:
<body>
<div class="serveraddcontainer">
<div class="serveradd"></div>
</div>
</body>
CSS:
body{
overflow: hidden;
}
.serveraddcontainer{
width: 100%;
height: 80px;
position: absolute;
bottom: -80px;
}
.serveradd{
width: 400px;
height: 80px;
background-color: red;
margin: auto;
}
Javascript:
setTimeout(function(){
$('.serveraddcontainer').animate({'bottom': '0'});
}, 3000);
Example JSFiddle Here

Animate the height property instead of top:
In you CSS:
.serverad {
...
height: 0;
position: fixed;
bottom: 0;
left: 0;
width: 100%;
visiblity: visible;
overflow: hidden;
...
}
And in your JS, change the animation code to:
$(document).ready(function() {
$('.serverad').delay(3000).animate({height: '30px'}, 'slow', function() {
// Animation complete.
});
});

Here's one approach:
var stepDurations = 3000;
var reveal = window.setTimeout(
function(){
$('#banner').animate(
{
'height' : '30px'
}, stepDurations,
function(){
$(this).animate(
{
'bottom' : $(window).height() - $(this).height()
}, stepDurations);
});
},stepDurations);
JS Fiddle demo.
Turned the above into a function:
function slideReveal(target, height, stepDuration, revealName){
if (!target) {
return false;
}
else {
var height = height || '30px',
stepDuration = stepDuration || 2000,
revealName = revealName || 'reveal';
revealName = window.setTimeout(
function(){
$(target).animate(
{
'height' : height
}, stepDuration,
function(){
$(this).animate(
{
'bottom' : $(window).height() - $(this).height()
}, stepDuration);
});
},stepDuration);
}
};
// call with:
slideReveal($('#banner'), '3em', 100, 'revelation');
JS Fiddle demo.