I have a div called container which contains dynamically created content(paragraphs) through javascript. The problem is that the paragphs aren't shown on the div once they reach beyond the boundaries of the container. To solve this issue, I tried overflow but that just added x,y scrollbars.
What I'm trying to do is increase the height of the container after every parapgraph added i.e. when paragraph is added to container of height 20px, the container increases height to a further 40 px for next paragraph.
HTML
<div class="container"></div>
Add content
CSS
.container {
width: 120px;
height: 20px;
display: inline-block;
margin-left: auto;
margin-right: auto;
/* overflow: auto; */ //As aforementioned, I'm not in favour of scrollbars
background-image: url('http://i.imgur.com/dfzk0TW.png');
}
Javascript
$(function () {
$('#add').on('click', function () {
$('<p>Text</p>').appendTo('#container');
});
});
Any suggestions? Thank you!
Try this code
jsfiddle
remove height from css and use below code
$('<p>Text</p>').appendTo('.container');
remove # and put dot(.)
this code will get height of container div and than will add 20px in container div.
$(function () {
$('#add').on('click', function () {
$('<p>Text</p>').appendTo('#container');
heightWithPx = $('#container').css('height');
height = heightWithPx.substr(0,heightWithPx.length-2);
newHeight = parseFloat(height)+20;
$('#container').css('height',newHeight+'px');
});
});
Related
I have two divs with animation, both are doing the same but with different animation. I have
$(document).ready( function(){
$('#show_hide_button').click( function() {
$('#some_box').animate({ width: 'toggle' });
});
});
Whole code in in jsfiddle http://jsfiddle.net/xLHb8/192/
Can anyone please explain to me why first div is animating right to left, left to right and second div is animating always to top left corner.
How can I make second div animate same as first div?
First, the relevant details in your code should be included in your question (in addition to providing the fiddle). But so you have the following CSS:
#some_box {
background: #fc0;
width: 25%;
height: 200px;
}
.second img {
max-width:100%;
max-height:100%;
}
.second {
width: 200px;
}
With the following HTML:
<button id="show_hide_button">click me</button>
<div id="some_box"></div>
<div class="second">
<img src="http://piq.codeus.net/static/media/userpics/piq_66223.png" />;
</div>
Note that you're setting the img to have a maximum width and height of its parent container. So because you're toggling the width of the parent, as parent collapses, the image is scaling down. Further, since you don't have a height setting on the img, its height is going to animate along with the animated width. This creates the effect of the image animating to the top left corner.
Without further details, it's hard to say how to fix your code to achieve the desired effect.
Update
If you want the width only to collapse, you can set a pixel height on your image so that it doesn't scale in proportion to its width:
.second img {
max-width: 100%;
height: 200px;
}
You can also put both animations in a single click event handler, like so:
$(document).ready( function(){
$('#show_hide_button').click( function() {
$('#some_box').animate({ width: 'toggle'});
$('.second').animate({ width: 'toggle' });
});
});
Forked your fiddle: http://jsfiddle.net/u1sdd8j5/1/
Update 2
From the comments, it seems like you want the image to collapse to the left, without losing the aspect ratio. We need to get a little creative to pull that off, especially if you're looking for a solution involving jQuery.animate(). The image actually needs to move downwards as it is scaled down. We can pull that off by animating the <img> itself, rather than its container, and adjusting its top margin at the same time animate its width.
Revised CSS (making the containers the same size for consistency):
#some_box {
background: #fc0;
width: 25%;
height: 200px;
}
.second {
width: 25%;
height: 200px;
}
.second img {
max-width: 100%;
max-height: 100%;
}
Revised JS:
$(document).ready( function(){
$('#show_hide_button').click( function() {
$('#some_box').animate({ width: 'toggle' });
var $secondImg = $('.second img'),
secondImgMargin = $secondImg.is(':visible') ? '50%' : 0;
$('.second img').animate({
width: 'toggle',
marginTop: secondImgMargin
});
});
});
Note that we need to first determine whether or not the <img> is visible. If it is, then we want to animate the top margin to 50%. If it's not, then switch the top margin back to 0.
Here's a new forked fiddle: http://jsfiddle.net/xwanm9ze/1/
Final Note
All of this might be easier to achieve with CSS3 transitions. You would want to set up a class that toggles the animation. And you can specify the transform-origin which, in this case, would be 'left center'.
The problem is, that you added a relative width and height attribute to the inside the second div and did not give a height and width attribute to the second div. This way, the image controls the height and width of the second div, since it has no height and width attribute.
In your case, a solution would be to give the second div a fixed width and height
Also, for the JQuery, you only need one $(document).ready function
$(document).ready(function () {
$('#show_hide_button').click(function () {
$('#some_box').animate({
width: 'toggle'
});
$('.second').animate({
width: 'toggle'
});
});
});
#some_box {
background: #fc0;
width: 25%;
height: 200px;
}
.second img {
width:100%;
height:100%;
}
.second {
width:200px;
height: 200px;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<button id="show_hide_button">click me</button>
<div id="some_box"></div>
<div class="second">
<img src="http://piq.codeus.net/static/media/userpics/piq_66223.png" />
</div>
I would like to display indicators for a certain div to show that it can be scrolled right or left depending on its state. To do so I would need to know if element can be scrolled to respective positions, e.g. if there is content to be seen on the right show indicator and after scrolling show another indicator on the left to indicate that users can now scroll there as well. I have a simple setup like this one: https://jsfiddle.net/udv8u596/
(You can scroll horizontally, scrollbar is hidden intentionally)
HTML:
<div class="scroll-container">
<div class="scroll-content">
Scroll Me Horizontally Scroll Me Horizontally Scroll Me Horizontally Scroll Me Horizontally Scroll Me Horizontally Scroll Me Horizontally Scroll Me Horizontally
</div>
</div>
CSS:
.scroll-container {
width: 80%;
margin: 0 auto;
background: cyan;
overflow-y: hidden;
height: 36px;
}
.scroll-content {
padding: 10px 0;
height: 50px;
white-space: nowrap;
overflow-x: scroll;
overflow-y: hidden;
}
To check if an element is overflowing along the x-axis, you can simply compare its computed width, accessible via jQuery's .width() method, and its scrollWidth, a native JS function:
var $ele = $('.scroll-content'),
overflowing = $ele[0].scrollWidth > $ele.width();
You can then check the boolean value of overflowing if the element is overflowing or not. However, note that if you want this variable to be updated if the window resizes, a little more work has to be done:
var $ele = $('.scroll-content'),
overflowing = function() {
if($ele[0].scrollWidth > $ele.width()) {
return true;
} else {
return false;
}
};
console.log(overflowing());
$(window).resize(function() {
console.log(overflowing());
});
Here's a fiddle with the above logic implemented, with some slight modifications: https://jsfiddle.net/teddyrised/udv8u596/5/
Ilya basically you need to check your element right postion. On way of achieving this is to set the inner element to have absolute oistion and get right postion with jQuery
parseInt($('.scroll-content').css('right')) >= 0
I have modified you code as: https://jsfiddle.net/udv8u596/4/
In this example before animating the element it checks if the righ position is bigger than 0.
Please not that righ position is calculated based on the parent element. Left position is set to be 0 in the css but righ postion will be calculated in this example is ~-250.
I hope this gives you an idea how to solve your problem.
Here's a quick start for what you are looking for :
HTML
<div class="scroll-container">
<div class="mask">
<div class="scroll-content">
Scroll Me Horizontally Scroll Me Horizontally Scroll Me Horizontally Scroll Me Horizontally Scroll Me Horizontally Scroll Me Horizontally Scroll Me Horizontally
</div>
</div>
</div>
<div class="scrollRight">Scroll Right »</div>
<div class="scrollLeft">» Scroll Left </div>
CSS
.scroll-container {
width: 80%;
margin: 0 auto;
background: cyan;
overflow-y: hidden;
overflow-x: hidden;
height: 36px;
}
.mask{
position:relative;
overflow-x: hidden;
overflow-y: hidden;
height: 36px;
width: 100%;
}
.scroll-content {
position:absolute;
padding: 10px 0;
height: 50px;
white-space: nowrap;
overflow-x: visible;
width:auto;
}
.scrollRight, .scrollLeft{
font-size:10px;
display:none;
}
JS
var contentWidth = $(".scroll-content").width();
var containerWidth = $(".scroll-container").width();
if(contentWidth>containerWidth){
$(".scrollRight").show();
}
$("body").on("click", ".scrollRight", function(){
var scrollValue = contentWidth-containerWidth;
$(".scroll-content").animate({"margin-left":"-"+scrollValue+"px"});
$(".scrollRight").hide();
$(".scrollLeft").show();
})
$("body").on("click", ".scrollLeft", function(){
var scrollValue = contentWidth-containerWidth;
$(".scroll-content").animate({"margin-left":"0px"});
$(".scrollRight").show();
$(".scrollLeft").hide();
})
See Update JSFiddle
When I apply position: fixed with Javascript my element moves a few pixels down and gets fixed in another position, some pixels down, instead of just staying where is was.
Why is this?
// html
<div id="container">
<div id="myDiv"></div>
</div>
// CSS
#container {
height: 2000px;
}
#myDiv {
margin-top: 50px;
width: 100px;
height: 50px;
background-color: #88a;
}
// Javascript
myDiv.style.position = 'fixed';
I find this behaviour at least in Chrome and FF.
http://jsfiddle.net/bSM8h/
When you apply position:fixed, also do:
pin.addEventListener('click', function () {
myDiv.style.position = 'fixed';
myDiv.style.top = '50px';
myDiv.style.marginTop = '0';
});
http://jsfiddle.net/bSM8h/2/
*edit*
By default browsers do body{padding:5px;} that is why a good idea is to html5boilerplate your css's
*end edit*
For some reason (see explanation here), margin-top also pushed the container with it. Once applied position:fixed, the container sprung back to the top of the page (lost the margin) and was positioned 5px from the top of page.
before position:fixed
after position:fixed
Just add this to your CSS:
body {
margin:0;
padding:0;
}
This will prevent the extra padding added by the browser defaults.
I have a div that has an inline height set to be 100% height of the browser window:
element.style {
height: 400px;
}
#scrollable-div {
overflow-x: hidden;
overflow-y: scroll;
position: relative;
width: 270px;
}
With JS or jQuery, I want to determine whether that div currently has a scrollbar, and if so, hide/show a different div. Any thoughts?
You can use this function to know if the element has scrollbar:
$(document).ready(function() {
var mydiv = $('#scrollable-div');
console.log(mydiv1[0].scrollHeight);
console.log(mydiv1.height());
if (mydiv1[0].scrollHeight > mydiv1.height()) {
console.log(1);
//Has scrollbar
}
else {
console.log(2);
//Dont has scrollbar
}
});
I'd suggest having another div that contains the content and is within scrollable-div. This will help track the height of the content for you to perform logic on.
if ($('#scrollable-inner').height() > $('#scrollable-div').height())
$('#dependent-div').hide();
else
$('#dependent-div').show();
See full code & demo at this jsFiddle.
I have a element, which is absolute positioned and has a fixed height.
This element has a lot of child elements, which could change their contents, and in consequence their height.
The problem is that the container element doesn't auto expand to fit its children (because of it's fixed height and absolute position).
How can I can resize the main container to match its children height?
Assuming you can change the css, this can be done fairly simply in css. Instead of setting height simply set min-height and your element should expand thusly.
min-height
Optionally if you did want to/need to do it in jQuery something like the following would work:
html:
<div id='container'>
<div class='child'>Content</div>
<div class='child'>Content</div>
<div class='child'>Content</div>
<div class='child'>Content</div>
</div>
CSS:
.child{
height: 40px;
background-color: red;
}
#container{
height: 120px;
background-color: gray;
padding: 5px;
}
javascript:
var childHeight = 0
$('.child').each( function() {
childHeight = childHeight + $(this).height();
})
$('#container').height(childHeight);
Working example:
http://jsfiddle.net/EcZZL/1/