MooTools: Fade out element? - mootools

I have an Element object that I'm currently calling .hide() on. Instead, I'd like to fade out the opacity of the entire Element (and its children) to 100% (hidden) as a transition effect over maybe 500 ms or 1000 ms.
Can Fx.Tween be used for this? Is this possible--does the MooTools framework have an effect like this in its UI library?

$('myElement').fade(0.7);
sets the element opacity to 70%. Or
$('myElement').fade('out'); // fades the element out.
http://mootools.net/docs/core/Fx/Fx.Tween#Element:fade
Element Method: fade Element shortcut
method for tween with opacity. Useful
for fading an Element in and out or to
a certain opacity level.

In MooTools 1.3 you can set the 'tween' options, such as duration or transition, like this:
$('tweener').set('tween', {duration: 2000}).fade('out');
See also jsfiddle example http://jsfiddle.net/tofu/VU7Es/
and the docs http://mootools.net/docs/core/Fx/Fx.Tween#Element-Properties:tween

Use
$('myElement').fade('toggle')`;
it will automatically fade in and fade out the object depending upon its state.
Example : HTML
<div style='background-color:black;color:white' id="tweener">
HELLO WORLD
</div>
<button onclick="javascript:doTween()">TWEEN</button>
<script type='text/javascript'>
function doTween()
{
$('tweener').fade('toggle'); // out, in are other options available.
}
</script>

MooTools has a fade() method in it's FX.Tween package, as seen here.

Related

Position SVG lines over HTML elements, while still allowing interaction with the HTMl elements [duplicate]

I have a div that has background:transparent, along with border. Underneath this div, I have more elements.
Currently, I'm able to click the underlying elements when I click outside of the overlay div. However, I'm unable to click the underlying elements when clicking directly on the overlay div.
I want to be able to click through this div so that I can click on the underlying elements.
Yes, you CAN do this.
Using pointer-events: none along with CSS conditional statements for IE11 (does not work in IE10 or below), you can get a cross browser compatible solution for this problem.
Using AlphaImageLoader, you can even put transparent .PNG/.GIFs in the overlay div and have clicks flow through to elements underneath.
CSS:
pointer-events: none;
background: url('your_transparent.png');
IE11 conditional:
filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(src='your_transparent.png', sizingMethod='scale');
background: none !important;
Here is a basic example page with all the code.
Yes, you CAN force overlapping layers to pass through (ignore) click events.
PLUS you CAN have specific children excluded from this behavior...
You can do this, using pointer-events
pointer-events influences the reaction to click-, tap-, scroll- und hover events.
In a layer that should ignore / pass-through mentioned events you set
pointer-events: none;
Children of that unresponsive layer that need to react mouse / tap events again need:
pointer-events: auto;
That second part is very helpful if you work with multiple overlapping div layers (probably some parents being transparent), where you need to be able to click on child elements and only that child elements.
Example usage:
.parent {
pointer-events:none;
}
.child {
pointer-events:auto;
}
<div class="parent">
I'm unresponsive
I'm clickable again, wohoo !
</div>
Allowing the user to click through a div to the underlying element depends on the browser. All modern browsers, including Firefox, Chrome, Safari, and Opera, understand pointer-events:none.
For IE, it depends on the background. If the background is transparent, clickthrough works without you needing to do anything. On the other hand, for something like background:white; opacity:0; filter:Alpha(opacity=0);, IE needs manual event forwarding.
See a JSFiddle test and CanIUse pointer events.
I'm adding this answer because I didn’t see it here in full. I was able to do this using elementFromPoint. So basically:
attach a click to the div you want to be clicked through
hide it
determine what element the pointer is on
fire the click on the element there.
var range-selector= $("")
.css("position", "absolute").addClass("range-selector")
.appendTo("")
.click(function(e) {
_range-selector.hide();
$(document.elementFromPoint(e.clientX,e.clientY)).trigger("click");
});
In my case the overlaying div is absolutely positioned—I am not sure if this makes a difference. This works on IE8/9, Safari Chrome and Firefox at least.
Hide overlaying the element
Determine cursor coordinates
Get element on those coordinates
Trigger click on element
Show overlaying element again
$('#elementontop').click(e => {
$('#elementontop').hide();
$(document.elementFromPoint(e.clientX, e.clientY)).trigger("click");
$('#elementontop').show();
});
I needed to do this and decided to take this route:
$('.overlay').click(function(e){
var left = $(window).scrollLeft();
var top = $(window).scrollTop();
//hide the overlay for now so the document can find the underlying elements
$(this).css('display','none');
//use the current scroll position to deduct from the click position
$(document.elementFromPoint(e.pageX-left, e.pageY-top)).click();
//show the overlay again
$(this).css('display','block');
});
I currently work with canvas speech balloons. But because the balloon with the pointer is wrapped in a div, some links under it aren't click able anymore. I cant use extjs in this case.
See basic example for my speech balloon tutorial requires HTML5
So I decided to collect all link coordinates from inside the balloons in an array.
var clickarray=[];
function getcoo(thatdiv){
thatdiv.find(".link").each(function(){
var offset=$(this).offset();
clickarray.unshift([(offset.left),
(offset.top),
(offset.left+$(this).width()),
(offset.top+$(this).height()),
($(this).attr('name')),
1]);
});
}
I call this function on each (new) balloon. It grabs the coordinates of the left/top and right/down corners of a link.class - additionally the name attribute for what to do if someone clicks in that coordinates and I loved to set a 1 which means that it wasn't clicked jet. And unshift this array to the clickarray. You could use push too.
To work with that array:
$("body").click(function(event){
event.preventDefault();//if it is a a-tag
var x=event.pageX;
var y=event.pageY;
var job="";
for(var i in clickarray){
if(x>=clickarray[i][0] && x<=clickarray[i][2] && y>=clickarray[i][1] && y<=clickarray[i][3] && clickarray[i][5]==1){
job=clickarray[i][4];
clickarray[i][5]=0;//set to allready clicked
break;
}
}
if(job.length>0){
// --do some thing with the job --
}
});
This function proofs the coordinates of a body click event or whether it was already clicked and returns the name attribute. I think it is not necessary to go deeper, but you see it is not that complicate.
Hope in was enlish...
Another idea to try (situationally) would be to:
Put the content you want in a div;
Put the non-clicking overlay over the entire page with a z-index higher,
make another cropped copy of the original div
overlay and abs position the copy div in the same place as the original content you want to be clickable with an even higher z-index?
Any thoughts?
I think the event.stopPropagation(); should be mentioned here as well. Add this to the Click function of your button.
Prevents the event from bubbling up the DOM tree, preventing any parent handlers from being notified of the event.
Just wrap a tag around all the HTML extract, for example
<a href="/categories/1">
<img alt="test1" class="img-responsive" src="/assets/photo.jpg" />
<div class="caption bg-orange">
<h2>
test1
</h2>
</div>
</a>
in my example my caption class has hover effects, that with pointer-events:none; you just will lose
wrapping the content will keep your hover effects and you can click in all the picture, div included, regards!
An easier way would be to inline the transparent background image using Data URIs as follows:
.click-through {
pointer-events: none;
background: url(data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7);
}
I think that you can consider changing your markup. If I am not wrong, you'd like to put an invisible layer above the document and your invisible markup may be preceding your document image (is this correct?).
Instead, I propose that you put the invisible right after the document image but changing the position to absolute.
Notice that you need a parent element to have position: relative and then you will be able to use this idea. Otherwise your absolute layer will be placed just in the top left corner.
An absolute position element is positioned relative to the first parent
element that has a position other than static.
If no such element is found, the containing block is html
Hope this helps. See here for more information about CSS positioning.
You can place an AP overlay like...
#overlay {
position: absolute;
top: -79px;
left: -60px;
height: 80px;
width: 380px;
z-index: 2;
background: url(fake.gif);
}
<div id="overlay"></div>
just put it over where you dont want ie cliked. Works in all.
This is not a precise answer for the question but may help in finding a workaround for it.
I had an image I was hiding on page load and displaying when waiting on an AJAX call then hiding again however...
I found the only way to display my image when loading the page then make it disappear and be able to click things where the image was located before hiding it was to put the image into a DIV, make the size of the DIV 10x10 pixels or small enough to prevent it causing an issue then hiding the containing div. This allowed the image to overflow the div while visible and when the div was hidden, only the divs area was affected by inability to click objects beneath and not the whole size of the image the DIV contained and was displaying.
I tried all the methods to hide the image including CSS display=none/block, opacity=0, hiding the image with hidden=true. All of them resulted in my image being hidden but the area where it was displayed to act like there was a cover over the stuff underneath so clicks and so on wouldn't act on the underlying objects. Once the image was inside a tiny DIV and I hid the tiny DIV, the entire area occupied by the image was clear and only the tiny area under the DIV I hid was affected but as I made it small enough (10x10 pixels), the issue was fixed (sort of).
I found this to be a dirty workaround for what should be a simple issue but I was not able to find any way to hide the object in its native format without a container. My object was in the form of etc. If anyone has a better way, please let me know.
I couldn't always use pointer-events: none in my scenario, because I wanted both the overlay and the underlying element(s) to be clickable / selectable.
The DOM structure looked like this:
<div id="outerElement">
<div id="canvas-wrapper">
<canvas id="overlay"></canvas>
</div>
<!-- Omitted: element(s) behind canvas that should still be selectable -->
</div>
(The outerElement, canvas-wrapper and canvas elements have the same size.)
To make the elements behind the canvas act normally (e.g. selectable, editable), I used the following code:
canvasWrapper.style.pointerEvents = 'none';
outerElement.addEventListener('mousedown', event => {
const clickedOnElementInCanvas = yourCheck // TODO: check if the event *would* click a canvas element.
if (!clickedOnElementInCanvas) {
// if necessary, add logic to deselect your canvas elements ...
wrapper.style.pointerEvents = 'none';
return true;
}
// Check if we emitted the event ourselves (avoid endless loop)
if (event.isTrusted) {
// Manually forward element to the canvas
const mouseEvent = new MouseEvent(event.type, event);
canvas.dispatchEvent(mouseEvent);
mouseEvent.stopPropagation();
}
return true;
});
Some canvas objects also came with input fields, so I had to allow keyboard events, too.
To do this, I had to update the pointerEvents property based on whether a canvas input field was currently focused or not:
onCanvasModified(canvas, () => {
const inputFieldInCanvasActive = // TODO: Check if an input field of the canvas is active.
wrapper.style.pointerEvents = inputFieldInCanvasActive ? 'auto' : 'none';
});
it doesn't work that way. the work around is to manually check the coordinates of the mouse click against the area occupied by each element.
area occupied by an element can found found by 1. getting the location of the element with respect to the top left of the page, and 2. the width and the height. a library like jQuery makes this pretty simple, although it can be done in plain js. adding an event handler for mousemove on the document object will provide continuous updates of the mouse position from the top and left of the page. deciding if the mouse is over any given object consists of checking if the mouse position is between the left, right, top and bottom edges of an element.
Nope, you can't click ‘through’ an element. You can get the co-ordinates of the click and try to work out what element was underneath the clicked element, but this is really tedious for browsers that don't have document.elementFromPoint. Then you still have to emulate the default action of clicking, which isn't necessarily trivial depending on what elements you have under there.
Since you've got a fully-transparent window area, you'll probably be better off implementing it as separate border elements around the outside, leaving the centre area free of obstruction so you can really just click straight through.

mouseLeave event never triggered

I'm trying to develop an overwolf app and am having issues receiving mouseLeave events.
Overwolf App:
<div id="menu" onMouseDown="dragMove();">
<div id="close" onclick="closeWindow();"></div>
</div>
<iframe src="URL_to_Webpage"></iframe>
<div id="scale" onmousedown="dragResize('BottomLeft');"></div>
<div id="sliderBg">
<div id="slider"></div>
</div>
The menu, close, scale and slider elements are overlayed ("position: absolute; left:...") over the iframe and work as window control elements (scaling, closing,...)
Webpage (iframe content):
$('html').hover(function() {
$(this).addClass('hover');
}, function() {
$(this).removeClass('hover');
});
I always get the hover class applied to my iframe as expected. CSS :hover selectors get applied as well.
The mouseLeave event though is only triggered, when leaving the iframe without "touching" the overlayed window control elements.
So if I touch those elements on my way out with my mouse, the "hover" class isn't removed (event simply not triggered) and all things applied with a css ":hover" selector aren't removed either.
Any help would be appreciated
Try add 'id' name on the iframe and imstead of directly using html.
I would like to see how it works to fully picture what you want to do.
Could you please paste your code at http://jsbin.com and let me know the link?

Changing position of image on hover of another image

I want to change the position of the image that shows while hovering in another image.
How can I do this...
here is my code
http://jsfiddle.net/bulina/aGX5J/1/
<div id="img1">
<img src="https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcT5ckS6M6g5q7FgL1dx0gxUFudPbBA46cHUN2JhGUajD_suIOah" onmouseover="this.src='http://motherhoodtalkradio.files.wordpress.com/2010/03/pink-daisy-motherhood-incorporated2.jpg'" onmouseout="this.src='https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcT5ckS6M6g5q7FgL1dx0gxUFudPbBA46cHUN2JhGUajD_suIOah'"/>
</div>
and css:
#img1{
position:absolute;
left:20%;
bottom:50%;
}
Not sure,might be helpful to you.
If you were not animating the transitions — and given the kinds of images I've grouped as sprites, I don't know why you'd ever do that — then you'd want something like this:
$(document).ready(function(){
$('#home a')
// On mouse over, move the background on hover
.mouseover(function() {
$(this).css('backgroundPosition', '0 -54px');
})
// On mouse out, move the background back
.mouseout(function() {
$(this).css('backgroundPosition', '0 0');
})
});
Now, if you are trying to animate that, then you've got bad syntax for the CSS and for the calls to "animate".
$(document).ready(function(){
$('#home a')
// On mouse over, move the background on hover
.mouseover(function(){
$(this).stop().animate({backgroundPosition: "0 -54px"}, 500);
})
// On mouse out, move the background back
.mouseout(function(){
$(this).stop().animate({backgroundPosition: "0 0"}, 500);
})
});
Again, I am doubtful that jQuery is going to be able to animate "backgroundPosition" for you, but then I don't do "animate()" very often and jQuery always manages to surprise me.
here's a page: http://snook.ca/archives/javascript/jquery-bg-image-animations/
I think this is not possible with normal css.
Consider using either javascript or a CSS Framework like YAML check this page if you're interested http://www.yaml.de/

img visible but disabled

Here is my HTML code:
<div class="mitcsinaltunk" style="position:absolute;left:5px;top:3px;text-align: left">
<div class="triangle"><img src="images/triangle.png"></div>
<img id="kep1" src="mitcsinaltunk/img1_s.jpg" class="mitcsinaltunk">
</div>
on #kep1.hover() starts an animation and fadeIn triangle.png. triangle.png is on #kep1. When I take the mouse on triangle.png, stops #kep1.hover() animation.
Can I make triangle visible, but disabled?
Try binding your .hover() event to the .mitcsinaltunk container instead. Your question is a little hard to understand (please post your JS), but my guess is that when the mouse hovers over triangle.png, mouse focus on the original image is lost, stopping the fade in animation. Binding to the containing element will solve this.

Opacity css affecting children elements

I am trying to implement an error message when user has disabled javascript. I have created a jsfiddle for my current work. I have 2 div layers one covering the whole page and an another one on top of that to show the warning message, but the opacity settings affects for the cover layer affects the warning message also. I have tried using the techniques from previous questions but I could not make it work. Can anyone help me?
http://jsfiddle.net/xcPcv/
Just move the message outside of the faded container ...
From:
<div id="fadeMe">
<div id="center">You have javascript disabled.</div>
</div>
To:
<div id="fadeMe">
</div>
<div id="center">You have javascript disabled.</div>
http://jsfiddle.net/xcPcv/7/
Instead of opacity, use rgba(0,0,0,.75) for the background:
http://jsfiddle.net/xcPcv/9/
The issue is that opacity applies to all contained (child) elements, not just the element you are applying
opacity
to. A side effect of this is that a further opacity setting will be that fraction of the parent opacity.
In your case you need to do nothing else but move the popup div outside the fadeMe div
<div id="fadeMe"></div>
<div id="center">You have javascript disabled.</div>