I'm using a very simple fade function with MooTools 1.2 (I 'have' to use MooTools 1.2 due to a complication over another function being called on the same page). I'm basically fading a title in on my page. Everything works great but I can't seem to find documentation on how to control the duration simply. Everything I find seems to refer to other functions and I'd like to keep this as simple as possible. Here's the javascript I've got:
window.addEvents({
load: function(){
var singleImage = $('myimage2');
singleImage.set('styles', {
'opacity': 0,
'visibility': 'visible'
});
singleImage.fade('in');
}
});
So as you see, it takes an image with id="myimage2" (which I have initially hidden with CSS) and fades in when the document is ready. It fades in quickly and I'd like it to fade in more gradually. Any ideas? Thanks.
Using the example from your previous question - http://jsfiddle.net/RNeS5/208/
// set-up an event on the browsers window
window.addEvents({
// be sure to fire the event once the document is fully loaded
load: function(){
// assing 'singleImage' variable to the image tag with the 'image' ID
var singleImage = $('image');
// set a bunch of CSS styles to the aforementioned image
singleImage.set('styles', {
'opacity': 0,
'visibility': 'visible'
});
// fade in the image
singleImage.set('tween', { duration: 2000 }).fade('in');
}
});
Related
I have tabs logic that load html templates inside a wrapper. That's works fine, but I included an animation that animate height of the tab wrapper when tab is switched.
The problem is the following: When a template contains <img src="/some-image.png"> the $('#tab-content').load('template-url', function() {...}) callback function sometimes is executed before the browser show the images. And my animation is not working correctly.
Code example (jsFiddle):
var currentHeight = $contentHolder.height();
$contentHolder.load(path, function() {
$contentHolder.stop();
function animateHeight() {
var loadedContentHeight = $contentHolder.css('height', 'auto').height();
$contentHolder.height(currentHeight);
$contentHolder.animate({
height: loadedContentHeight
}, 800, 'linear');
}
animateHeight();
});
I tried to set little timeout, but it's not working every time. If I set more that 300ms timeout, It feels like tabs are changed too slow.
I tried to execute the animation when $('img').load(function() {}) is fired, but with no luck.
This bug occurs most often when the web page is fully refreshed and each tab content loading for first time.
The image load event is kind of broken. To know when images are loaded you will have to observe the DOM for changes. Then on every change, you have to fetch all the new images and add the onload event to them from the callback. To prevent checking each element every time, once they've been loaded you could mark them as such by adding a data-loaded="true" property for instance.
One way to listen to DOM changes is the MutationObserver event. This is supported by all modern browsers and IE11.
A better supported solution (IE9 and up) can be found in this answer: Detect changes in the DOM. I will not repeat it here (but it's included in the demo below).
On every DOM change first you check for images without the data-loaded attribute that are already loaded anyway (this could happen when an image was still in the browser's cache) by checking element.complete. If so, fire the callback function and add the attribute to it.
If .complete is not the case, add an onload event to them that also fires the callback once it is loaded.
In your case you only want to fire your callback when all images are loaded, so I added a check if there's still images without the data-loaded attribute. If you remove that if-clause your callback would run after each image is loaded.
// Observe the DOM for changes
observeDOM(document.body, function(){
checkNewImages();
});
var checkNewImages = function() {
var images = $('img:not([data-loaded]').each(function() {
addImageLoadedEvent( this );
});
}
var addImageLoadedEvent = function(img) {
if (img.complete) {
onImageLoaded(img);
} else {
$(img).on('load', function() {
onImageLoaded(this);
});
}
}
// The callback that is fired once an element is loaded
var onImagesLoaded = function(img) {
$(img).attr('data-loaded', 'true');
if($('img:not([data-loaded])').length === 0) {
// YourCallbackHere();
}
}
DEMO: fire event on all images loaded
You can call your animateHeight function as each image in the loaded HTML is in turn loaded. You can expand this selection if you have other objects like videos.
// Call animateHeight as each image loads
var items = $('img', $contentHolder);
items.bind('load', function(){
animateHeight();
});
Updated demo: http://jsfiddle.net/jxxrhvvz/1/
I'm building a website which relies on jQuery effects and I have a problem with the jQuery Slide effect.
I'm using that through a toggle function for the moment, but that will change in a later stage.
The fact is that I'm hinding an element when a certain action is executed. When you use the function slide the content beneath those elements moves when the animation is completed to take up the free space which was created with the effect.
The problem is that the content is only moved as soon as the animation is completed. Is there any way to move the content when the animation is still running. With other words, I want to move the content together with the animation, but I don't want to call the slide function on my element that should move with it.
I've created a JSFiddle to demonstrate the problem: http://jsfiddle.net/6Lg9vL8m/6/
Edit: Question update and fiddle
Here's an update to the question, and please see my original updated fiddle.
When you execute the slide effect in jQuery UI, see the bottom example on my fiddle, the box is moved up, and is somewhere placed behind an invisible screen (tough to explain).
With the animate function, see the top example in my fiddle, the area is shrinked, and that's something which I want to avoid. I want to achieve the effect such as 'Slide' does, but the content under the box must move up immediately with the animation, and not after the animation has been completed.
Edit: Reworked the correct answer in a plugin.
Thanks to the answers I've received here, I found the correct code, modified a bit, and created a plugin from it which I'll place here.
The plugin is called 'Curtain' and can be described as rising the requested element as a curtain and thus move it out of the way.
Here's the source code:
(function($) {
$.fn.curtain = function(options, callback) {
var settings = $.extend( {}, $.fn.curtain.defaults, options);
var tabContentsHeight = $(this).height();
$(this).animate({height:0}, settings.duration);
$(this).children().animate({'margin-top':'-' + tabContentsHeight + 'px'}, settings.duration, function() {
$(this).css({"margin-top":0});
if ($.isFunction(callback)) {
callback(this);
}
});
return this; // Allows chaining.
};
$.fn.curtain.defaults = {
duration: 250
};
}(jQuery));
The plugin can be called like this:
element.curtain({ duration: 250 }, function() {
// Callback function goes here.
});
If someone has remarks or a better way to solve this problem, please share it in the comments.
You can do it by using the animate function like this:
$('#square').on('mousedown', function(e) {
$(this).animate({height:-200},2500);
});
Demo
Updated code to create a "curtain raising" like animation:-
$('#square').on('mousedown', function(e) {
$(this).animate({height:-200},2500);
$(this).children().animate({"margin-top":"-400px"},2500, function() {
$(this).css({"margin-top":0})
});
});
CSS:
`#square{
overflow:hidden;
}`
Demo 2
This is the effect you wanted?
$('#square').on('click', function(e) {
$(this).animate({height :0},2500 );
});
On a click of a button, i'm trying to fadeOut an image, and while it is fading out i'm changing the source of the image. And then i'm using the fadeIn to show the new image. This works fine in Chrome, and firefox. However, in ie10, the image fades out, fades in, and then the new image appears. I can't find a a fix for it. I've tried to prolong the duration of fadeOut, fadeIn. I've tried using setTimeout function. i've tried using promise().done() function. I've tried using Jquery UI's hide/show w/ slide effect, and same issues are appearing. Nothing seems to be working. I'd really appreciate any help. Thanks
me.$el.find('#printable-detail-static-imageRight').fadeOut('fast', function(){
me.$el.find('#printable-detail-static-imageRight').attr('src', me.options.samplePrints[k+i]);
me.disableNext();
});
me.$el.find('#printable-detail-static-imageRight').fadeIn('slow')
I'm pretty sure you need to put the .fadeIn method inside the callback function in order for it to be affected by the callback function. In fact, I'd add another callback function to the .attr method to make sure that it fades back in only after the src has been changed.
Here's a jsFiddle I wrote to illustrate what I mean.
i am on a mac, but does this code works in ie ? jsFiddle
.html
<div id="content">Promises</div>
<button id="click">start animation</button>
.js
$("#click").on("click", function () {
$('#content').fadeOut({
duration: 1000,
// run when the animation is complete
complete: function () {
$("#content").append($("<div>").addClass("fakeimg"));
},
// run when the animation is complete +
//it's promise is resolved
done: function () {
$('#content').fadeIn(1000);
}
});
});
this works:
me.$el.find('#printable-detail-static-imageRight').animate({
opacity:0
}, {
duration: 700,
step: function(now, fx){
if(fx.pos > 0.40 && fx.pos < 0.5){
$(this).attr('src', me.options.samplePrints[k+i]);
me.disableNext();
}
if (fx.pos ==1) {
$(this).animate({
opacity:1
}, 200);
}
}
});
Here is the example I'm looking to create...
Let's assume there are two divs, each containing some other HTML/Content (other divs). I would like to have one of these divs in the view on page load, and then after some number of seconds (let's say 5), scroll the second div onto the same place as the first div, and then repeating that process indefinitely until the user leaves the page.
The page and elements in question can be found at http://paysonfirstassembly.com/. I am attempting to animate the left sidebar with a class of dynamicPanel. There will be at least three of these divs, and they will nearly match up in content length.
I appreciate everybody's help. I am a very new client-side programmer and appreciate the respect that this community has with new developers.
Working demo of the following →
Here's a simple jQuery plugin I just made that will slide up the first div and place it at the end of the list. I've commented the code below to further explain so that this can just get you started and you can adjust it to your needs and learn about jQuery:
// the plugin declaration
$.fn.rotateEach = function ( opts ) {
// cache the element set
var $this = this,
// create some default options
defaults = {
delay: 5000
},
// pass the defaults to settings with any override options
settings = $.extend(defaults, opts),
// repeated rotation function
rotator = function ( $elems ) {
// slide up first element in set
$elems.eq(0).slideUp(500, function(){
// detach first element
var $eq0 = $elems.eq(0).detach();
// append it to wrapper
$elems.parent().append($eq0);
// fade it back in
$eq0.fadeIn();
// call rotator on reselection of elements
// since first element was moved to end
setTimeout(function(){ rotator( $( $elems.selector ) ); },
settings.delay);
});
};
// initial rotator call
setTimeout(function(){ rotator( $this ); }, settings.delay);
};
// invoke plugin
$('.dynPanelContent').rotateEach();
If you want to change the delay you can just pass it in as an option:
$('.dynPanelContent').rotateEach({ delay: 7500 }); // 7.5 seconds
Note: I also moved .dynPanelOpener and .dynPanelTitle within .dynPanelContent so that they're included in the animations.
See working example →
I don't have a very good understanding of Javascript so appologies before we start.
I have successfully used Mootools 1.1 to scroll to elements onclick events. I used FX.Scroll as the example here http://demos111.mootools.net/Fx.Scroll and basicly ripped off the demo code.
Note: If you click on one link and then another quickly it immediately stops moving to the first element and scrolls to the second.
I am now trying to use Mootools 1.3 to use the fade efects for a gallery and have used More Builder to get FX.Scroll. It is working BUT when I click on one link and then another straight away, it just continues with the first scroll.
It appears that event.stop is not working.
See example http://www.mytimephotography.co.uk < works
http://www.mytimephotography.co.uk/test < broken
I am using code:
window.addEvent('domready', function () {
var scroll = new Fx.Scroll('scrollcontainer', {
wait: false,
duration: 2000,
offset: {'x': 0, 'y': 0},
transition: Fx.Transitions.Quad.easeInOut
})
$('link1').addEvent ('click', function(event){
event = new Event(event).stop();
scroll.toElement('c1');
})
//etc
})
Please view any other source code on the site.
Use the "link" property of the Fx options object. The default is set to "ignore", which is why the original animation keeps running. Instead, use "chain" if you want it to run after the current animation, or "cancel" if you want it to interrupt the currently running animation.
Alternately, use a faster animation—two seconds is really long! :)
var scroll = new Fx.Scroll('scrollcontainer', {
wait: false,
duration: 2000,
offset: {'x': 0, 'y': 0},
transition: Fx.Transitions.Quad.easeInOut,
link: 'cancel'
});