Develop Reference

Vertical dragBar for resizing two divs

I wanted a vertical dragBar for resizing two divs. I have created an example for the same but I am facing an issue.
Actual : As and when I resize the the upper div and move the slider down, the area of parent div increases and hence a scroll bar is given.
Expected: When Resizing, if the slider is moved down, it should only show the data contained in the upper div and when slider is moved up, it should show the content of lower div and should not increase the over all length of the parent div.
var handler = document.querySelector('.handler');
var wrapper = handler.closest('.wrapper');
var boxA = wrapper.querySelector('.box1');
var boxB = wrapper.querySelector('.box2');
var isHandlerDragging = false;
document.addEventListener('mousedown', function(e) {
// If mousedown event is fired from .handler, toggle flag to true
if (e.target === handler) {
isHandlerDragging = true;
}
});
document.addEventListener('mousemove', function(e) {
// Don't do anything if dragging flag is false
if (!isHandlerDragging) {
return false;
}
// Get offset
var containerOffsetTop= wrapper.offsetTop;
var containerOffsetBottom= wrapper.offsetBottom;
// Get x-coordinate of pointer relative to container
var pointerRelativeXpos = e.clientY - containerOffsetTop;
var pointerRelativeXpos2 = e.clientY - e.offsetTop + e.offsetHeight;
var boxAminWidth = 30;
boxA.style.height = (Math.max(boxAminWidth, pointerRelativeXpos - 2)) + 'px';
boxA.style.flexGrow = 0;
boxB.style.height = (Math.max(boxAminWidth, pointerRelativeXpos2 - 8)) + 'px';
boxB.style.flexGrow = 0;
});
document.addEventListener('mouseup', function(e) {
// Turn off dragging flag when user mouse is up
isHandlerDragging = false;
});
body {
margin: 40px;
}
.wrapper {
background-color: #fff;
color: #444;
/* Use flexbox */
}
.box1, .box2 {
background-color: #444;
color: #fff;
border-radius: 5px;
padding: 20px;
font-size: 150%;
margin-top:2%;
/* Use box-sizing so that element's outerwidth will match width property */
box-sizing: border-box;
/* Allow box to grow and shrink, and ensure they are all equally sized */
}
.handler {
width: 20px;
height:7px;
padding: 0;
cursor: ns-resize;
}
.handler::before {
content: '';
display: block;
width: 100px;
height: 100%;
background: red;
margin: 0 auto;
}
<div class="wrapper">
<div class="box1">A</div>
<div class="handler"></div>
<div class="box2">B</div>
</div>
Hope I was clear in explaining the issue I am facing in my project. Any help is appreciated.

It looks like your on the right track. You just need to make the wrapper a flexbox with the flex direction column and assign it a height. Also box 2 needs to have a flex of 1 so it can grow and shrink as needed. Finally I needed to remove the code that set the flex grow to 0 in the JavaScript. Here is the result.
var handler = document.querySelector('.handler');
var wrapper = handler.closest('.wrapper');
var boxA = wrapper.querySelector('.box1');
var boxB = wrapper.querySelector('.box2');
var isHandlerDragging = false;
document.addEventListener('mousedown', function(e) {
// If mousedown event is fired from .handler, toggle flag to true
if (e.target === handler) {
isHandlerDragging = true;
}
});
document.addEventListener('mousemove', function(e) {
// Don't do anything if dragging flag is false
if (!isHandlerDragging) {
return false;
}
e.preventDefault();
// Get offset
var containerOffsetTop= wrapper.offsetTop;
var containerOffsetBottom= wrapper.offsetBottom;
// Get x-coordinate of pointer relative to container
var pointerRelativeXpos = e.clientY - containerOffsetTop;
var pointerRelativeXpos2 = e.clientY - e.offsetTop + e.offsetHeight;
var boxAminWidth = 30;
boxA.style.height = (Math.max(boxAminWidth, pointerRelativeXpos - 2)) + 'px';
boxB.style.height = (Math.max(boxAminWidth, pointerRelativeXpos2 - 8)) + 'px';
});
document.addEventListener('mouseup', function(e) {
// Turn off dragging flag when user mouse is up
isHandlerDragging = false;
});
body {
margin: 40px;
}
.wrapper {
background-color: #fff;
color: #444;
/* Use flexbox */
display: flex;
flex-direction: column;
height: 200px;
}
.box1, .box2 {
background-color: #444;
color: #fff;
border-radius: 5px;
padding: 20px;
font-size: 150%;
margin-top:2%;
/* Use box-sizing so that element's outerwidth will match width property */
box-sizing: border-box;
/* Allow box to grow and shrink, and ensure they are all equally sized */
}
.box2 {
flex: 1;
}
.handler {
width: 20px;
height:7px;
padding: 0;
cursor: ns-resize;
}
.handler::before {
content: '';
display: block;
width: 100px;
height: 100%;
background: red;
margin: 0 auto;
}
<div class="wrapper">
<div class="box1">A</div>
<div class="handler"></div>
<div class="box2">B</div>
</div>

How to add text to different parts of chart made from css, html, and javascript?

I'd like to add text to three different parts of the below row chart:
http://codepen.io/chriscruz/pen/ByjZdp
A number at the beginning of where the orange begins
a percentage right before the organge ends
A number at the end of the entire bar where the gray ends.
Something like this:
HTML:
<div class="progress-wrap progress" data-progress-percent="50">
<div class="progress-bar-state progress">50</div>
</div>
CSS:
.progress {
width: 100%;
height: 50px;
}
.progress-wrap {
background: #f80;
margin: 20px 0;
overflow: hidden;
position: relative;
.progress-bar-state {
background: #ddd;
left: 0;
position: absolute;
top: 0;
}
}
Javascript:
// on page load...
moveProgressBar();
// on browser resize...
$(window).resize(function() {
moveProgressBar();
});
// SIGNATURE PROGRESS
function moveProgressBar() {
console.log("moveProgressBar");
var getPercent = ($('.progress-wrap').data('progress-percent') / 100);
var getProgressWrapWidth = $('.progress-wrap').width();
var progressTotal = getPercent * getProgressWrapWidth;
var animationLength = 2500;
// on page load, animate percentage bar to data percentage length
// .stop() used to prevent animation queueing
$('.progress-bar-state').stop().animate({
left: progressTotal
}, animationLength);
}
I've tried to just insert the numbers after, but I can't seem to make the numbers relative to the position of 'progress-wrap' or 'progress.' See my attempt here: http://codepen.io/chriscruz/pen/MYKoBq

You can use :before and :after :pseudo-elements.
// on page load...
moveProgressBar();
// on browser resize...
$(window).resize(function() {
moveProgressBar();
});
// SIGNATURE PROGRESS
function moveProgressBar() {
console.log("moveProgressBar");
var getPercent = ($('.progress-wrap').data('progress-percent') / 100);
var getProgressWrapWidth = $('.progress-wrap').width();
var progressTotal = getPercent * getProgressWrapWidth;
var animationLength = 2500;
// on page load, animate percentage bar to data percentage length
// .stop() used to prevent animation queueing
$('.progress-bar-state').stop().animate({
left: progressTotal
}, animationLength);
}
.progress {
width: 100%;
height: 50px;
}
.progress-wrap:before {
content: '66';
position: absolute;
left: 5px;
line-height: 50px;
}
.progress-wrap:after {
content: '$250,000';
right: 5px;
position: absolute;
line-height: 50px;
}
.progress-wrap {
background: #f80;
margin: 20px 0;
overflow: hidden;
position: relative;
}
.progress-wrap .progress-bar-state {
background: #ddd;
left: 0;
position: absolute;
top: 0;
line-height: 50px;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<!-- Change the below data attribute to play -->
<div class="progress-wrap progress" data-progress-percent="50">
<div class="progress-bar-state progress">50</div>
</div>

As given below, Add/Modify HTML , CSS and JS. It gets your desired output
$('.progress-bar-state').stop().animate({
left: progressTotal
width:getProgressWrapWidth - progressTotal
}, animationLength);
HTML
<!-- Change the below data attribute to play -->
<div class="progress-wrap progress" data-progress-percent="7">
vd
<div class="progress-bar-state progress">8
<div class="right-content" >RightEnd</div></div>
</div>
CSS
.right-content
{
float:right;
}

Making a sticky header work

I've got the following code for a sticky header, but I can't get the scroll to work and it's not a smooth transition. The #top-nav-wrapper barely scrolls when the fixed header below is activated:
<script>
$(document).scroll( function() {
var value = $(this).scrollTop();
if ( value > 48 ) {
$(".header").css("position", "fixed");
$("body").css("padding-top", "90px");
} else {
$(".header").css("position", "relative");
$("body").css("padding-top", "0");
}
});
</script>
The 48 value is the height of the #top-nav-wrapper, plus it has a box-shadow.
The .header class with the search bar is what should remain.
The basic html:
<div class="headerWrapper">
<div id="top-nav-wrapper"></div>
<div class="header"></div>
</div>
The CSS:
body {
background: #EEE;
}
#top-nav-wrapper {
width: 100%;
position: relative;
box-shadow: 0px 1px 1px 0px #B8B8B8;
z-index: 2001;
background: #EEE;
}
.header {
position: relative;
left: 0;
top: 0;
width: 100%;
min-height: 90px;
z-index: 2000;
background: #EEE;
height: 90px;
box-shadow: 0px 1px 2px #C4C4C4;
}
* I tried the following suggestion, but it's the same effect as before:
<script>
$(window).scroll( function() {
var value = $(this).scrollTop();
var $body = $('body');
var docked = $body.hasClass('docked');
if ( value > 48 ) {
if( !docked ) {
$body.addClass('docked');
}
} else {
if( docked ) {
$body.removeClass('docked');
}
}
});
</script>
Any ideas appreciated.
Update - I've changed the script to the following and placed it in the head - this resolves the top nav not scrolling dynamically and I added a placeholder div after the header and before the content with the same size height as the fixed header to keep the content where it should be (because the fixed header changes the natural flow), but there's still the lag/jump when the fixed header kicks in.
Placeholder CSS:
.headerPlaceholder {
height: 90px;
width: 100%;
display: none;
}
Solution to top nav not scrolling all the way after 48px scroll height was set:
<script>
$(document).ready(function () {
var div = $('.header');
var div2 = $('.headerPlaceholder');
var start = $(div).offset().top;
$.event.add(window, "scroll", function () {
var p = $(window).scrollTop();
$(div).css('position', ((p) > start) ? 'fixed' : 'static');
$(div).css('top', ((p) > start) ? '0px' : '');
$(div2).css('display', ((p) > start) ? 'block' : 'none');
});
});
</script>
To make it a smooth transition, there might need to be a slight delay and fadein/out effect, if anyone could help with that?

You can try
$(window).scroll( function() {
var value = $(this).scrollTop();
var $body = $('body');
var docked = $body.hasClass('docked');
if ( value > 48 ) {
if( !docked ) {
$body.addClass('docked');
}
} else {
if( docked ) {
$body.removeClass('docked');
}
}
});
CSS
.docked {
padding-top: 90px;
}
.docked .header {
position: fixed;
z-index: 2005;
}
You can be more efficient if there is an overall container you can target instead of body.

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

How to toggle (hide / show) sidebar div using jQuery

I have 2 <div>s with ids A and B. div A has a fixed width, which is taken as a sidebar.
The layout looks like diagram below:
The styling is like below:
html, body {
margin: 0;
padding: 0;
border: 0;
}
#A, #B {
position: absolute;
}
#A {
top: 0px;
width: 200px;
bottom: 0px;
}
#B {
top: 0px;
left: 200px;
right: 0;
bottom: 0px;
}
I have <a id="toggle">toggle</a> which acts as a toggle button. On the toggle button click, the sidebar may hide to the left and div B should stretch to fill the empty space. On second click, the sidebar may reappear to the previous position and div B should shrink back to the previous width.
How can I get this done using jQuery?

$('button').toggle(
function() {
$('#B').css('left', '0')
}, function() {
$('#B').css('left', '200px')
})
Check working example at http://jsfiddle.net/hThGb/1/
You can also see any animated version at http://jsfiddle.net/hThGb/2/

See this fiddle for a preview and check the documentation for jquerys toggle and animate methods.
$('#toggle').toggle(function(){
$('#A').animate({width:0});
$('#B').animate({left:0});
},function(){
$('#A').animate({width:200});
$('#B').animate({left:200});
});
Basically you animate on the properties that sets the layout.
A more advanced version:
$('#toggle').toggle(function(){
$('#A').stop(true).animate({width:0});
$('#B').stop(true).animate({left:0});
},function(){
$('#A').stop(true).animate({width:200});
$('#B').stop(true).animate({left:200});
})
This stops the previous animation, clears animation queue and begins the new animation.

You can visit w3school for the solution on this the link is here and there is another example also available that might surely help,
Take a look

The following will work with new versions of jQuery.
$(window).on('load', function(){
var toggle = false;
$('button').click(function() {
toggle = !toggle;
if(toggle){
$('#B').animate({left: 0});
}
else{
$('#B').animate({left: 200});
}
});
});

Using Javascript
var side = document.querySelector("#side");
var main = document.querySelector("#main");
var togg = document.querySelector("#toogle");
var width = window.innerWidth;
window.document.addEventListener("click", function() {
if (side.clientWidth == 0) {
// alert(side.clientWidth);
side.style.width = "200px";
main.style.marginLeft = "200px";
main.style.width = (width - 200) + "px";
togg.innerHTML = "Min";
} else {
// alert(side.clientWidth);
side.style.width = "0";
main.style.marginLeft = "0";
main.style.width = width + "px";
togg.innerHTML = "Max";
}
}, false);
button {
width: 100px;
position: relative;
display: block;
}
div {
position: absolute;
left: 0;
border: 3px solid #73AD21;
display: inline-block;
transition: 0.5s;
}
#side {
left: 0;
width: 0px;
background-color: red;
}
#main {
width: 100%;
background-color: white;
}
<button id="toogle">Max</button>
<div id="side">Sidebar</div>
<div id="main">Main</div>

$('#toggle').click(function() {
$('#B').toggleClass('extended-panel');
$('#A').toggle(/** specify a time here for an animation */);
});
and in the CSS:
.extended-panel {
left: 0px !important;
}

$(document).ready(function () {
$(".trigger").click(function () {
$("#sidebar").toggle("fast");
$("#sidebar").toggleClass("active");
return false;
});
});
<div>
<a class="trigger" href="#">
<img id="icon-menu" alt='menu' height='50' src="Images/Push Pin.png" width='50' />
</a>
</div>
<div id="sidebar">
</div>
Instead #sidebar give the id of ur div.

This help to hide and show the sidebar, and the content take place of the empty space left by the sidebar.
<div id="A">Sidebar</div>
<div id="B"><button>toggle</button>
Content here: Bla, bla, bla
</div>
//Toggle Hide/Show sidebar slowy
$(document).ready(function(){
$('#B').click(function(e) {
e.preventDefault();
$('#A').toggle('slow');
$('#B').toggleClass('extended-panel');
});
});
html, body {
margin: 0;
padding: 0;
border: 0;
}
#A, #B {
position: absolute;
}
#A {
top: 0px;
width: 200px;
bottom: 0px;
background:orange;
}
#B {
top: 0px;
left: 200px;
right: 0;
bottom: 0px;
background:green;
}
/* makes the content take place of the SIDEBAR
which is empty when is hided */
.extended-panel {
left: 0px !important;
}