Pre-calculate Width Of Element Before Adding It To Document Tree?
Oct 20, 2011
I understand that if I have an element in my document tree, I can use getComputedStyle() to determine its width based on CSS styles.
I want to dynamically create some elements to populate a given div, but I want the size of these elements to be controllable via CSS. When dynamically populating the div, I need to determine how many elements will fit. Currently, I have to add an element to the div first so its size will be calculated, then I can base my calculations off of that. However, this seems like not a great way to do ti.
Is there some way to ask for the size of an element to be calculated as if it were part of the document tree? That way, I could make my changes all at once.
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Apr 26, 2011
Is there any way that one could have supersubs functionality applied to drop-down multi-column menus?I assume one would need to calculate the width of each column plus the combined width for the container.
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Apr 29, 2011
Here are sample division code...
The <div class="child"> width value is always 10 pixels less than <div id="parent"> width value. How can it be calculated so any width value is given to <div id="parent">, its child gets 10 pixels less than that?
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Oct 5, 2006
i try to figure out how to calculate string width in a textarea while
typing in it. the textarea has a fixed start width. when the string gets longer as
the textarea width, the textarea should be made bigger while typing
programatically.
my only problem is to determine the size of the string in the textarea.
i know the font family and font size.
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Jun 9, 2011
I want to automatic calculate the width of a child div. I have a parent with a fixed with and two children in there. The first has a flexible width due to his content (title of post) and is transparent. The second child contains only a background image and should always fill the rest-width. I tried it like this but it doesn't work [code]...
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Jan 29, 2008
I am retrieving titles from a database and then displaying them on screen. However when I display them I must make sure that they fit inside a certain rectangle. If it deosn't fit then i must reduce the font size and recalculate until it fits. The title is in two parts Code:
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Jul 28, 2010
Is the next jQuery code the best way to decrease an elements width?[code]I tried using the next code:[code]but that's not working, also not with '-20'.Maybe it's an idea to add this functionality? It's is already used in the .animate() function for changing the position of an element.
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Oct 15, 2001
How do I get the width of a document (the inner width of the window) with javascript? Can't use document.width because it only works in Netscape, and same with window.innerWidth....
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Apr 19, 2011
The following code returns me a null value on internet explorer but works fine on firefox and opera.
var iW = $(document).width();
alert(iW);
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Dec 19, 2010
So I didn't know whether to put this in HTML & CSS or here. So I'm just going to put it here and the mods can move it if needed.So I had this script working for auto width of a DIV, then I added DOCTYPE to the top of my document, now it won't change the width ha ha. I have tried with all DOCTYPE's and same thing.The JS I am using is:
window.onload=function(){
document.getElementById("right").style.width= + screen.width - 193;
}
As I said this worked before I added DOCTYPE to the top of the HTML. But when I add any one of the DOCTYPES it stops working.
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Aug 19, 2011
how can i know the original element that raised the event if that event is propagated up the tree ?
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Nov 26, 2009
I am not able to calculate the offsetwidth of the element which contains extra space in between the characters.for ex. if the element contains "A A" as a innerHTML value - if we calculate offsetwidth as 29 and also if the element contains "A A" value again I am getting the same offsetwidth as 29.While calculating the offsetwidth it is not calculating the empty space.May I know how to calculate the offsetwidth with the empty space because I need to insert the ellipsis (...) if it exceeds original width?
Code snipet
function fitStringToWidth(title,width,className) {
var span = document.createElement("span");
span.className="titleBar-Title-1";
[Code]....
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Aug 26, 2010
I have a javascript here for adding my div element to my registration form,Adding the div element is easy, but it shows on the bottom of my form. I cant make it as the first child element of my form...This is my code
var _form = document.getElementById('registration_form');
var errorDiv = document.createElement('div');
errorDiv.setAttribute('class', 'confBox');
[code]....
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Aug 18, 2011
I'm currently working on a webpage and I seem to have a small problem.
I have a few div's with dynamic content but I can't seem to get the floating right...
So this is what I want, [url]
And this is what I got, [url]
I can't get a width to the <p> element since it's also used in other divs with other widths etc.
So now I was wondering if it would be possible to have jQuery solve this for me.
The <p> element should be 350px width when there is no image inside the div where to <p> is in.
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Sep 30, 2009
I'm looking to grab the width of an <li>, including padding and margins that doesn't have a set width, and has one of 'auto' or 0.
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Sep 30, 2009
I forget how to do this. Maybe somebody can point me to a decent tutorial. But I'm looking to grab the width of an <li>, including padding and margins that doesn't have a set width, and has one of 'auto' or 0.
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Jun 13, 2011
I'd like to set the div width equal to the image width. Here's what I can think of [code]...
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Jun 14, 2010
I have some one page whose div elements are aligned by JavaScript. The JavaScript just check a set of div elements to find the max offsetWidth, then set all div elements' width to be the max offsetWidth. It works perfect in most browsers and locales, but it fails on french-France in Firefox on Mac. In this case, the content of div wraps.
<div id="divFoo">
Heure de début :
</div>
for above HTML, below code report "79".
javascript:alert(document.getElementById('divFoo').offsetWidth);
but below code report "79.1333px".
javascript:alert(window.getComputedStyle(document.getElementById('divFoo'),null).width))
The gap between 79.1333 and 79 makes incorrect width set to inline style.I used to thought that offsetWidth and width should always be integer. Is there any way to make offsetWidth round correctly?
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Jun 13, 2011
I'd like to set the div width equal to the image width. Here's what I can think of:
Code:
<script type="text/javascript">
window.onload = function ()
{
document.getElementById('foo').style.width = document.getElementById('bar').width + 'px';
}
</script>
<div id="foo" style="background:red;"><img id="bar" src="image.jpg"></div>
It seems to be working, but I'm not sure if it's correct coding.
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Apr 25, 2010
I have problem with reading div width, sometimes, for this same div element, jquery returns width of 800 (which is correct), but then sometimes, it returns 93(which is not correct).
Here's the html (part of it):
Code:
And here jquery function:
Code:
This line is the problem. Sometimes, it says width of that div element is 800, sometimes 93. I put border around div, and i can clearly see it really hs width of 800, but sometimes, i still says (firebug) that width is 93. there is the image inside this div.
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Jul 6, 2011
I have got the following CSS-Box, with those properties in my styles.css:
.panorama {
float:left;
overflow:hidden;
}
[Code]....
But when I want to read out this information afterwards, my function doesnt work:
console.log($('.panorama').css("width")); This delivers me 0px.
Why doesnt it bring me the 1641px?
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Jun 13, 2011
I'd like to set the div width equal to the image width. Here's what I can think of [code]...
It seems to be working, but I'm not sure if it's correct coding.
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Aug 7, 2011
I'm a new Javascript coder; it's still pretty easy for me to get snagged on stuff. Anyways, I had a question for a specific project I've been trying to figure out.
I have an element set with CSS to a width of 160px. What I want is a way for users to the site to drag a slider back and forth to set the width of the button. Some sort of smooth animation while this is happening would also be nice. I'd also like a way to set a max width on the element.
So, can this be done? I'm guessing it would use jQuery, but I don't really know.
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May 5, 2010
How can I change the height and width of an element with Javascript? I have tried and so far I can only change either the width or height but not both, doing something like this…
Code:
<HTML>
<HEAD>
<script type = "text/javascript">
function changeSize(){document.getElementById('test').style.height = '200'}
[code]....
And this works fine but if I try to change both height and width it doesn’t work. Doing something like this doesn’t work
Code:
function changeSize(){document.getElementById('test').style.height = '200' width=’200’}
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Jun 4, 2009
I have the following DIV, that I need to position in the center of the page, I have the following code, but you can see the div is not exactly center, space I have from the top is not the same I have in the bottom, the space I have from bot side is the same.I was wandering also if I can do this dynamically, meaning the div will receive the width and height in run time, and them I will send the values to my method "centerObj" (How I can get the height and width of the div element.
<html>
<head>
<script>[code]....
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Jul 17, 2005
I'm having an issue getting the height and width of DIV elements that have resized themselves to fit their content.
Note: I do not have a problem getting the height and width of DIV elements that I have set using Javascript. The probel is that this value appears to stick. I.e. the height is set to 150px, then the content is changed and the DIV cosumes as much height as is required (clearly more than 150px), however analysing the DOM indicates that the height is the same (though it is clearly not).
I want to know how to get hold of the 'actual' size of a DIV element that is manipulated by the content of the DIV.
I am also interested in a solution that works in IE and Firefox (at least).
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