Im getting spaces between my div.container elements as soon as I changed the parent div to position relative and it needs to be relative is there a way to fix this. here is my jsFiddle example jsFiddle
Name change, eh?
next.animate({
'left': next.offset().left + next.width()
});
The offset is giving you an offset from the edge of the screen and not your container. That's why the gap is the same size as space between the left edge of the window and the box.
Related
I am using jQuery offset().top to calculate a hyperlink's pixels from the top of the document window so that when hovered, a tooltip can appear above it.
By default, the tooltip's css has an absolute position of top 0 and left 0. When the link is hovered, it calculates it's position from the top of the document and uses that as the css top position for the tooltip.
The problem is that on some pages, offset is calculating the link's position perfectly, and on others, it is around 50 pixels too many. I can't figure out why.
$(".tiptrigger").mouseenter(function() {
var s_id = $(this).attr('id');
var calc = $(this).offset().top;
$("#tip-"+s_id).css({"margin-top": calc+"px"});
});
Instead of absolute try to use fixed for your popup element. Than offset().top should work if you don't have any unnecessary padding applied to body
If still inaccurate instead of .offset().top give a chance to https://developer.mozilla.org/en-US/docs/Web/API/element.getBoundingClientRect
.offset() has this limitation:
Note: jQuery does not support getting the offset coordinates of hidden elements or accounting for borders, margins, or padding set on the body element.
So your jQuery is probably correct but if you have some padding/margin on your body, you will experience an incorrect offset. Either remove it or include it in your calculation:
var bodyOffset = $('body').css("margin-top") + $('body').css('padding-top') + $('body').css('border-top');
var calc = $(this).offset().top + bodyOffset;
I have a script that dynamically inserts a div containing text in the dom. The text content is not known in advance.
I need to know the width of this div, but it seems that that the return value of document.defaultView.getComputedStyle(node, "").getPropertyValue("width") or node.offsetWidth cannot be trusted.
I used setInterval to log it, and the value changes over time. For instance, in my case it starts with 929px and then changes to 908px.
This div is in position absolute, it has whitespace nowrap, so I don't think it is being "pushed" by other dom elements or that it somehow changes once inserted.
Is there an elegant way to retrieve the width, or do I have to use an ugly setTimeout to retrieve it once the return value is stable ?
Try:
yourDOMElement.getClientBoundingRect()
This will return an object with top, left, right, bottom, height and width attributes. This should be cross-browser.
Note: If you are going to work with the position attributes (top, left, right, bottom, height) of the returned, take into account scroll offset if necessary.
Update: To ensure this works on older browsers that don't have the width/height attribute, calculate it subtracting right/bottom from left/top.
The viewport can change its size because of the scrollbar. Once the scrollbar appears, its width can no longer be used by the document. Force the scrollbar to exist before you measure the size by adding overflow: scroll or overflow-y:scroll to the <html> element.
The size of a block-level element is, by default, its container width minus margins and padding (even if it's positioned absolutely), which is ultimately the wiewport width unless you set a fixed width somewhere along the way.
Using jQuery, you should be able to do this:
var width = $("div-selector").width();
this is fairly easy?
open the page in a browser and press f12. With firefox there is a button "inspect element" on top and in chrome it's on the bottom. Click it and hover your mouse over it. This should give you the height and width in px. Never been wrong for me.
if it still doesn't show, click it and you can see it in the css panel of the console.
I have this element, and i want to position it to specific coordinates on the page. The problem is that it's inside another positioned element, so position:absolute places it relatively to this element, while i want it to be placed relatively to the page.
Is there some way i can place an element at specific coordinates on the page?
You can see what i have on this page: http://bit.ly/NkfJk7 when you mouse over that yellow exclamation icon, i want the pink box to appear near that, but instead it appears in double that distance.
I figured it out, i was doing it wrong.
toolTip.style.left = button.offsetLeft + "px";
toolTip.style.top = button.offsetTop + "px";
No need to go absolute :)
You can use position: fixed for this
https://developer.mozilla.org/en/CSS/position
Fixed
Do not leave space for the element. Instead, position it at a specified position relative to the screen's viewport and doesn't move when scrolled. When printing, position it at that fixed position on every page.
EDIT: Disregard this answer. Position-fixed positions relative to the screen, so it will follow around it the page scrolls.
I need to have a simple pop up rectangle, preferably with jQuery or some such, that simply brings up a scaled down canvas (say, 1:2, representing a 1000px x 1600px browser window) that can be clicked on to get the x/y position in the full window.
It's really just a simple, visual way to help a client position content on a page (it has to be completely at their control, not on a grid).
Does anyone have an idea of something out there that already does something like this? (I'm looking for the wordpress admin, but should be able to work anything in pretty much).
Edit to clarify. Here is what I'm thinking might work if there is nothing out there that does this:
If you click a button, jQ an absolute positioned div (lightbox style), of the sized I talked about, then close the div upon clicking it, but somehow get the x/y position in the div where it was clicked and then scale this with some maths...
I think the thing I don't know how to do here is getting the x/y position relative to the size of the specific div.
Sorry, I think this is maybe a bit of a terribly worded question.
$('#popup').css("top", ($(window).height()) / 2 + $(window).scrollTop() + "px");
$('#popup').css("left", ($(window).width()) / 2 + $(window).scrollLeft() + "px");
your canva need to be set to
position: relative
then anything inside this element can be set to
position : absolute
top: [your Y position from top side of the canva]px;
left: [your X position from left side of the canva]px;
Absolute position always refers to the first element that has no default positionning, in this case relative.
This is a followup to my question here. I would like to understand why applying position:absolute to the CSS of a div via jQuery fails, while applying it in a static style works. Here are two jsfiddle examples:
Works: http://jsfiddle.net/jasper/Ty6Af/2/
No worky: http://jsfiddle.net/Ty6Af/3/
Note that the only difference between the two is where I apply position:absolute. Vertical centering always works, but horizontal centering does not work when the page loads for the first time. If you manually re-size the window the div will center correctly.
All of my testing has been on Chrome under Ubuntu thus far.
Anyway, I'm just now delving into the world of web development and these are exactly the kinds of 'quirks' that I need to begin understanding.
EDIT:
#Jasper found something interesting. If you make two calls to .css(), first applying position and subsequently applying a margin, it works. I would love to understand why. Here is an example: http://jsfiddle.net/jasper/Ty6Af/5/
So the issue is with how the width of the div is calculated by the browser depending on its position.
If the div is set to position : static (by default) then it's width is 100% of it's parents width and the element is not allowed to move around the page.
If the div is set to position : relative then it's width is 100% of it's parents width but it can be moved around with left.
If the div is set to position : absolute then its width is determined by the actual content of the div, for instance if there is only a 200px wide <span> element within the div then the div will be 200px wide.
You can test these observations by changing the CSS of your jsfiddle to specify position : relative (etc...) and remove the JavaScript that makes the div position : absolute, then use your Developer Tools to inspect the element and it's calculated width.
The problem with your code is that it sets the position : absolute at the same time it sets the margin of the element by using its width/height (which are calculated differently depending on the position of the element).
If you want to set the position of the div in JavaScript then you can do something like this:
$(function() {
//notice I cached the selector so it can be used in the future as well as set the position of the div
$signuparea = $('#signuparea').css({position : 'absolute'});
$(window).resize(function() {
$signuparea.css({
'margin-top' : '-' + Math.round($signuparea.height() / 2) + 'px',
'margin-left' : '-' + Math.round($signuparea.width() / 2) + 'px',
});
}).trigger('resize');
});
Here's a jsfiddle: http://jsfiddle.net/jasper/Ty6Af/8/
I believe the problem is that when you apply your left and right in your second fiddle, you have yet to add position absolute to the div. Hence, the browser has no idea what do with the left and right values and ignores them initially.
Practically speaking in your second fiddle, you only actually add the position:absolute on the resize trigger. So before you resize your actual div has no positioning.
If you instead add the position absolute on load it works fine:http://jsfiddle.net/Ty6Af/9/
Notice that if you give it position:relative from the start (like this http://jsfiddle.net/Ty6Af/11/ ) it allready applies both the left and right value. The reason you can't actually see the effect of "left" is because it is a block element.
I hope that answers your question, I'm not quite clear on where you are stuck.
http://jsfiddle.net/Ty6Af/7/ this should work, the trigger function in jquery has bugs with chrome so you have to run the function on load too.
The problem seems to be that position:absolute; negates the current layout and requires you to position it.....
See: http://jsfiddle.net/ZHaRD/
Which Jasper explains much more eloquently than myself!