I'm now in problem about how to animate function in jQuery to expand proportionally. Normally, it expand one-sided only just like expand to bottom or expand to right.
What I want is to expand proportionally left-right-top-bottom by using animate.
Following is my coding. What I said above, it expand to bottom only.
$(document).ready(function() {
var theFrame = $("#FrmPatient", parent.document.body);
theFrame.animate({width: 650, height: 485}, 1000);
});
Try this:
<div id="frame"></div>
#frame {
position: absolute;
left: 50%;
top: 50%;
margin: -100px 0 0 -100px;
width: 200px;
height: 200px;
background-color: #999;
}
$(function() {
var w = 400, h = 400;
$("#frame").animate({
width: w,
height: w,
marginLeft: -w/2,
marginTop: -h/2
}, 1000);
});
http://jsfiddle.net/GVj83/
You'll need to animate the left and top properties as well. If the original width and height of the box are (w0, h0) and the expanded ones are (w1, h1), animate left to left-(w1-w0)/2, and top to top-(h1-h0)/2. Note that would only work with absolute or relative positioning.
Related
I am trying to create a tooltip element that has a min width of 50px and a max width of 200px. I place the tooltip element inside another element so that I can easily control when the tooltip appears or disappears when there is a hover event on the parent.
The problem that I have is that the tooltip element's width appears to be controlled by the parent's width even though I specified that the child(tooltip) has an absolute position.
let p = document.getElementById( 'parent' );
let b = true;
setInterval( ()=> {
b = !b;
let w = 10;
if( b ) {
w = 300;
}
p.style.width = `${w}px`
}, 5000 );
#parent {
background-color: cyan;
width: 100px;
height: 25px;
position: relative;
transition: width 2s;
}
#tooltip {
position: absolute;
top: calc( 100% + 5px );
left: 5px;
min-width: 50px;
max-width: 200px;
background-color: yellow;
padding: 5px;
border: 1px solid black;
}
<div id="parent">
<div id="tooltip">
My long tooltip text that wraps to multiple lines as needed.
</div>
</div>
I would like the tooltip (yellow div) to keep it's size at 200px in this example, but we can see that when the parent changes width, the tooltip width also changes. Why?
Is there a way to fix this problem?
Clarification: In this example: https://codepen.io/anon/pen/ePPWER we see that the tooltip text looks nice on one line. I don't want the tooltip's div to change its width when the parent changes width, because it forces the tooltip text to wrap onto 2 lines which is undesirable.
If we check the specification related to the width of absolutely positioned element we can read this:
'width' and 'right' are 'auto' and 'left' is not 'auto', then the width is shrink-to-fit . Then solve for 'right'
So in your case the width of your element is shrink to fit:
Calculation of the shrink-to-fit width is similar to calculating the
width of a table cell using the automatic table layout algorithm.
Roughly: calculate the preferred width by formatting the content
without breaking lines other than where explicit line breaks occur,
and also calculate the preferred minimum width, e.g., by trying all
possible line breaks. CSS 2.1 does not define the exact algorithm.
Thirdly, calculate the available width: this is found by solving for
'width' after setting 'left' (in case 1) or 'right' (in case 3) to 0.
Then the shrink-to-fit width is: min(max(preferred minimum width,
available width), preferred width).
To make it easy, and without considering the min/max-width, the width of your element will try to fit the content without exceding the width of its parent container (containing block). By adding min/max-width you simply add more constraint.
One idea of fix it to remove positon:relative from the parent element so that it's no more the containing block of the position:absolute element (it will be the initial containing block which is wide enough to avoid the available width constraint).
Then use margin instead of top/left to control the position:
let p = document.getElementById( 'parent' );
let b = true;
setInterval( ()=> {
b = !b;
let w = 10;
if( b ) {
w = 300;
}
p.style.width = `${w}px`
}, 5000 );
#parent {
background-color: cyan;
width: 100px;
height: 25px;
transition: width 2s;
}
#tooltip {
position: absolute;
margin-top: 30px;
min-width: 50px;
max-width: 200px;
background-color: yellow;
padding: 5px;
border: 1px solid black;
}
<div id="parent">
<div id="tooltip">
My long tooltip text that wraps to multiple lines as needed.
</div>
</div>
ID Tooltip is being used under Parent. When parent's width changes, it also suggest that tooltip's total width is changed. Since you have used mix-width and max-width it will expand till it reaches max-width. If you want it to be fixed then simple use width.
It is because the .parent has a position: relative. This will keep all children (position: absolute included) as confined by the parent div.
Not sure if this will work for you because it is pulling the tooltip out of the parent and making it's own with span wrapping the text. Alternatively, you'll need to change the parent from being relative otherwise it'll continually affect the child.
let p = document.getElementById('parent');
let b = true;
setInterval(() => {
b = !b;
let w = 10;
if (b) {
w = 300;
}
p.style.width = `${w}px`
}, 5000);
#parent {
background-color: cyan;
width: 100px;
height: 25px;
transition: width 2s;
position: relative;
}
#root {
position: relative;
}
#tooltip {
width: 100%;
}
#tooltip span {
position: absolute;
top: calc( 100% + 5px);
left: 5px;
min-width: 50px;
max-width: 200px;
background-color: yellow;
padding: 5px;
border: 1px solid black;
}
<div id="root">
<div id="parent"></div>
<div id="tooltip">
<span>My long tooltip text that wraps to multiple lines as needed.</span>
</div>
</div>
I have image with width: 100%; height: auto; and on this image are other elements with position: absolute; left: x; top: x; (it's a game).
When I was resizing the page, elements weren't moving (it was messing up), so I wrote this:
// on start
var img = document.getElementById('world_image');
startImageSize.w = img.clientWidth;
startImageSize.h = img.clientHeight;
actImageSize.w = startImageSize.w;
actImageSize.h = startImageSize.h;
// on resize
var img = document.getElementById('world_image');
actImageSize.w = img.clientWidth;
actImageSize.h = img.clientHeight;
// update (each tick)
$("#cr_" + this.ID).animate({
"left" : (this.x - ((startImageSize.w - actImageSize.w) / 2)) + "px",
"top" : (this.y - ((startImageSize.h - actImageSize.h) / 2)) + "px"
}, speed);
But it's not working corretly, here is short GIF representing what is happening:
A "red point" is moving faster than it shoud be.
// EDDIT! JSFiddle with whole project https://jsfiddle.net/BrunonDEV/18mqyd8r/1/
What am I doing wrong?
I wouldn't try to reposition those in JS - it's slow, makes resizing janky, and chews the javascript cycles you'll need for actually running your game, and it's not necessary anyway. Why not just set your dot's position in %, like this:
.map {
background: #68B1FF url('https://upload.wikimedia.org/wikipedia/commons/5/5e/BlankMap-World-Sovereign_Nations.svg') center top no-repeat;
background-size: contain;
position: relative;
height: 0;
padding-top: 51.2%; /* The original map image is 1104 x 566px. This is the aspect ratio as a percentage of height to width */
width: 100%;
}
.marker {
border-radius: 50%;
width: 1vw; /* These allow the markers to scale with the map */
height: 1vw;
background: red;
min-height: 8px;
max-height: 16px;
min-width: 8px;
max-width: 16px;
position: absolute;
}
<div class="map">
<div class="marker" style="top: 20%; left: 33%;"></div>
</div>
One of the important pieces here is fixed aspect ratio boxes in CSS - if you set height to 0, and padding-top (or bottom) to a percentage, the padding height is calculated as a percentage of the width, not the height as you might expect.
For bonus points, you should use an SVG map image - then it'll scale cleanly, too.
Im trying to add a footer at the bottom of this content that doesn't overlay the content but moves it up.
The only way I can see it working would be something like, when browser is at the bottom remove 'fixed' class on the left red '#work'.
js fiddle DEMO
Updated js fiddle DEMO
HTML
<div id="header-block">
Header-block, this sits here in the background
</div>
<div id="content">
<div id="work">
This content should be fixed when at the top
</div>
<div id="description">
This content should scroll -
</div>
</div><!-- end content -->
<div id="footer">
This should appear at the bottom
</div>
CSS
body {
margin: 0px;
padding: 0px;
}
#header-block {
background: green;
width: 100%;
position: fixed;
z-index: 1;
height: 300px;
top: 0;
}
#content {
margin-top: 300px;
width: 100%;
position: relative;
z-index: 2;
}
#work {
background: red;
width: 50%;
height: 100vh;
float: left;
position: absolute;
}
#description {
background: blue;
width: 50%;
height: 1200px;
float: right;
font-size: 30px;
}
#footer {
background: black;
width: 100%;
height: 100px;
position: absolute;
z-index: 3;
bottom: 0;
}
If I understand your question correct, this should do the trick (although it depends very much on JavaScript unfortunately).
// Fix work column on scroll
contentStart = $("#content").offset().top ;
contentSize = $("#content").height() ;
window.onscroll = function(){
if( window.XMLHttpRequest ) {
var position=window.pageYOffset;
// calculate the position of the footer and the actual seen window
var docViewTop = $(window).scrollTop();
var docViewBottom = docViewTop + $(window).height();
var elemTop = $("#footer").offset().top;
if ( position > 300 && !(docViewBottom >= elemTop)) {
$('#work').css({'position':'fixed', 'top':'0', 'height':'100vh'});
} else {
// if the footer is visible on the screen
if(docViewBottom >= elemTop) {
$('#work').css({ 'top': 0 - (docViewBottom - elemTop) }); // scroll the #main div relative to the footer
} else {
$('#work').css({'position':'relative', 'top': 'auto'}) ;
}
}
}
}
For further informations about the calculations, perhaps this question on stackoverflow is useful.
Edit: Andrew Haining posted his answer in between of my answer, perhaps give his link a try and maybe it's a better (more proper) solution. Unfortunately I haven't actualised this page when I was testing your code in JSFiddle and I didn't see his answer.
If you want to use my script, make sure you can test it with different resolutions. It works just fine for my resolution in JSFiddle, I didn't test any other.
I'm not 100% sure what you want, but if you remove the position: absolute and the bottom: 0 from the footer, and put a div with class='clearboth' above the footer, it seems to do what you need.
CSS
.clearboth {
clear: both;
}
This is a drawing of what I see on your fiddle;
Do you want the red and the blue to always be touching the black?
I don't see the red overlying the black
You should use jQuery to add a class containing the position:fixed value when the scroll position of the page is less than the inline position of the #work div. Once it scrolls past the position, remove the class and have the element fall back in line.
You can achieve this using the following jQuery methods.. .scrollTop() .offset().top() and $(window).height().
This tutorial will give you an understanding of what you need to do to achieve the necessary results, you will just have to change the calculation slightly using $(window).height(), $('#footer').height() and a few other changes to get what you desire.
Based on the question you asked i think this is what you mean. The red div should be fixed when it gets to the top but be absolute when it is below the top for scrolling and the black footer should be below the red while scrolling, check this code i have done for you. just add this jquery script and run it.
<script type="text/javascript" src="js/jquery.js"></script>
<script>
$(document).ready(function() {
$(window).scroll(function () {
console.log($(window).scrollTop());
if ($(window).scrollTop() >= 322) {
$('#footer').css("z-index","1");
$('#work').css(
{
"background": "red",
"width": '50%',
'height': '100vh',
'float': 'left',
'position': 'fixed',
'top': '0'
});
}
if ($(window).scrollTop() <= 322)
{
$('#work').css(
{
"background": "red",
"width": "50%",
"height": "100vh",
"float": "left",
"position": "absolute"
});
};
});
});
</script>
If not exactly a parallax, this is somewhat close to how parallax works, containers moving at different speeds, and some containers sitting fixed or scrolling when they attain a particular top/bottom offset in the viewport.
There's plugin that can do it. Skrollr
You can use Skrollr along with skrollrcss, and it'll make sure how the containers take position on screen based on scrolltop of the window and the container specifically.
As you can see there is a slide to the left and the with decreases from 100% to 0 at the same time.
I want to get this same effect but from left to right.
I can't get it right!
jQuery('#target').animate({ width: '0', left: '-25%' }, 1500, 'swing');
Example Fiddle: http://jsfiddle.net/RsBNk/
That is pretty simple. Align the image to the right and then decrease it by 25% using jQuery like below:
jQuery:
jQuery('#target').animate({ width: '0', right: '-25%' }, 1500, 'swing');
CSS:
.box {
width: 100%;
position: absolute;
top: 0;
right: 0; /* Modified this line */
height: 200px;
background-image: url('http://images.icnetwork.co.uk/upl/uxbridgegazette/jul2012/0/4/marc-mccarroll-image-2-304314157.jpg');
background-position: right; /* EDIT: This property needs to be set */
}
Updated Demo
May be this helps you
$('#target').animate({
width : '0',
marginLeft: parseInt($('#target').css('marginLeft'),10) == 0 ?
$('#target').outerWidth() : 0
}, 1500, 'swing');
check demo
I want to make container/div in sidebar moving/following along with page scrolling down. It is not just a position:fixed container. It will move only when it should disappear being scrolled down. What is the best practice to implement?
Thank you
Say we want to:
start at 260px from top (as defined in CSS)
stick at 24px from top (as defined in JS)
var $sticky = $("#sticky"),
pos = {
abs : {position: "absolute", top: parseInt($sticky.css("top"), 10) },
fix : {position: "fixed", top: 24 /* <<< SET AS DESIRED */ },
};
$(window).on("load scroll", function() {
var canFix = $(this).scrollTop() >= pos.abs.top - pos.fix.top;
$sticky.css( pos[ canFix? "fix" : "abs" ] );
});
body{
height: 2000px;
border: 4px dashed #444;
}
#sticky{
height: 100px;
background: #0bf;
position:absolute;
top: 260px; /* <<< SET AS DESIRED */
}
SCROLL!
<div id="sticky">STICK ME AT 24 FROM TOP</div>
<script src="//ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>