How do I add a pause effect when I hover over an image in a jQuery slideshow?
$(document).ready(function () {
slideShow();
});
function slideShow() {
var showing = $('#slideshow .show');
var next = showing.next().length ? showing.next() : showing.parent().children(':first');
var timer;
showing.fadeOut(500, function () {
next.fadeIn(200).addClass('show');
}).removeClass('show');
setTimeout(slideShow, 3000);
}
var hovering = false; //default is not hovering
$("#slideshow").hover(function () { //*replace body with your element
hovering = true; //when hovered, hovering is true
}, function () {
hovering = false; //when un-hovered, hovering is false
slideShow(); //start the process again
});
function slideShow() {
if(!hovering) { //if not hovering, proceed
/* Your code here*/
nextSlide();
setTimeout(slideShow, 1000);
}
}
function nextSlide(){
var showing = $('#slideshow .show');
var next = showing.next().length ? showing.next() : showing.parent().children(':first');
var timer;
showing.fadeOut(500, function () {
next.fadeIn(200).addClass('show');
}).removeClass('show');
}
Demo: http://jsfiddle.net/DerekL/mqEbZ/
Use .delay() that will help.
Description: Set a timer to delay execution of subsequent items in the queue.
I think you need two functions for that ... slideShow() and other one say pauseSlideshow()... now call the slideshow() on mouseout event and on mouseenter call pauseSlideShow()
your code should be something like this
$(document).ready(function(){
$('.slider').mouseout( slideShow());
$('.slider').mouseenter( pauseSlideShow());
});
function slideShow() {
var showing = $('#slideshow .show');
var next = showing.next().length ? showing.next() : showing.parent().children(':first');
var timer;
showing.fadeOut(500, function() { next.fadeIn(200).addClass('show'); }).removeClass('show');
timeOut = setTimeout(slideShow, 3000);
}
function PauseSlideShow() {
window.clearTimeout(timeOut);
}
TRY IT
Working off of Derek's answer, an alternative to hover would be to use mouseenter and mouseleave.
See the working slideshow Jsfiddle: Demo: http://jsfiddle.net/highwayoflife/6kDG7/
var hovering = false;
var slideshow = $("#slideshow");
slideshow.mouseenter(function() {
hovering = true;
}).mouseleave(function() {
hovering = false;
slideShow();
});
function slideShow() {
if (!hovering) {
# Some browsers don't interpret "display:block" as being visible
# If no images are deemed visible, choose the first...
var currentImg = (slideshow.children("img:visible").length) ? slideshow.children("img:visible") : slideshow.children("img:first");
var nextImg = (currentImg.next().length) ? currentImg.next() : slideshow.children("img:first");
currentImg.fadeOut(500, function() {
nextImg.fadeIn(500, function() {
setTimeout(slideShow, 2000);
});
});
}
}
$(document).ready(function() {
slideShow();
});
Related
I want to put a little delay for onmouseout event for a group of sub items in a drop down menu. But I don't want to use css transitions.
I set it with .hover() and setTimeout method but I wanted to put it only for a specific elements in menu - in this case just for sub items so I used if else statement for them. I have no idea why this if else statement does't work.
Here is my javascript code:
var selectors =
{
element: '.main-menu li:has(ul)'
}
var opacityWorkaround = function ($element, value) {
$element.css('opacity', value);
};
var getAnimationValues = function (visible) {
var result = {
visibility: visible
};
result.opacity = visible === 'visible' ? 1 : 0;
};
var mouseActionHandler = function ($element, visible, opacityValue) {
$element
.stop()
.css("visibility", 'visible')
.animate(getAnimationValues(visible),
3000,
function () {
$(this).css("visibility", visible);
opacityWorkaround($(this), opacityValue);
});
};
var onMouseIn = function () {
var $submenu = $(this).children("ul:first");
if ($submenu) {
mouseActionHandler($submenu, 'visible', 1);
}
};
var onMouseOut = function () {
var $submenu = $(this).children("ul:first");
var $global = $('.global').children('ul');
if ($submenu) {
mouseActionHandler($submenu, 'hidden', 0);
} else if ($global) {
setTimeout(function() {
mouseActionHandler($global, 'hidden', 0);
},1500);
}
};
$(selectors.element).hover(onMouseIn, onMouseOut);
I put 1500ms delay and the $global variable is referring to sub items in menu that I want to make disapear with that delay. I wanted to achieve this when user move mouse cursor out of 'some items >' tab.
Here is my fiddle example.
http://jsfiddle.net/PNz9F/1/
Thanks in advance for any help!
In the example you have in your question $submenu always has a value so the else if statement is never run. You can check for a class instead.
var timeout;
var $submenu = $(this).children("ul:first");
var $global = $('.global').children('ul');
if ($(this).hasClass('menu-item')) {
mouseActionHandler($submenu, 'hidden', 0);
mouseActionHandler($global, 'hidden', 0);
clearTimeout(timeout);
} else if ($(this).hasClass('global')) {
timeout = setTimeout(function() {
mouseActionHandler($global, 'hidden', 0);
},1500);
}
you should be able to just use the :hover selector in your code to check whether the user is hovering over the element or not and run code accordingly
What I need to achieve is if we click on submit button, there is particular div should show up.
Here is my code:
http://jsfiddle.net/7tn5d/
But if I click on submit button multiple times, the function calls sort of queue up and run one after other.
Is there a way to invalidate other onclicks when current animation is running?
Code:
animating = 0;
doneanim = 0;
$(function () {
$("#submit_tab").click(function (e) {
if (animating == 1) return;
animating = 1;
$("#submit_cont").show("blind", {}, 1000);
animating = 0;
});
});
To prevent it from performing the action multiple times, simple cease the previous animation. So:
$('#submit_cont').stop().show("blind",{},1000);
However, I have noticed that you have attempted to prevent the animation from running, if an animation is already running. Although it takes 1 second or 1000 milliseconds to show the div, the execution of the condition does not pause until the animation is complete. You must define a function to run after the animation is complete, like so:
animating = 0;
doneanim = 0;
$(function () {
$("#submit_tab").click(function (e) {
if (animating == 1) return;
animating = 1;
$("#submit_cont").show("blind", 1000, function() { animation = 0; });
});
});
Hope that helped...
You almost got it right with the semaphore! It's just that, in jQuery's show(), you would have to put the semaphore reset as an argument. Here's the fixed version - http://jsfiddle.net/snikrs/xe5A3/
animating = 0;
doneanim = 0;
$(function () {
$("#submit_tab").click(function (e) {
if (animating == 1) return;
animating = 1;
$("#submit_cont").show("blind", 1000, function() {
animating = 0;
});
});
});
You can use the :animated selector to check:
$(function () {
$("#submit_tab").click(function (e) {
var $cont = $("#submit_cont");
if (!$cont.is(':animated')) {
$cont.show("blind", {}, 1000);
}
});
});
Now if you stick with the external semaphore idea then its better to stick that on the elemnt with .data() instead of using a global variable:
$(function () {
$("#submit_tab").click(function (e) {
var $cont = $('#submit_cont'),
animating = $cont.data('isAnimating');
if (animating) {
return;
} else {
$cont.data('isAnimating', 1);
$("#submit_cont").show("blind", 1000, function() { $cont.data('isAnimating', 0); });
}
});
});
Something like this (see documentation) :)
$("#submit_cont").show("blind", function(){
animating = 0;
});
You can add a $("#submit_cont").clearQueue(); after the animation finished :
$("#submit_tab").click(function (e) {
$("#submit_cont").show("blind", 1000, function() {
$("#submit_cont").clearQueue();
});
});
Updated JSFiddle
I found a different solution for this, which in my opinion looks cleaner:
var tab = $("submit_tag");
tab.on("click", function(){
var cont = $("submit_cont");
var animating = tab.queue("fx").length;
if(animating === 0){
cont.show("blind", {}, 1000);
}
});
I'm using a hover function with a fade in and fade out to show and hide images. The problem is I want each image to finish fading before the other begins to fade in.
This is what I'm trying. The setTimeout function has broke the hover function and all images are displaying when the page loads.
$(document).ready(function() {
var delay = 0;
//Everything below repeats for each image
$("#image_e_natural_minor").hide();
$("#hover_e_natural_minor").hover(
if (delay == 1) {
setTimeout(function() {
function () {
$("#image_e_natural_minor").fadeIn(1000);
}, //mouse over
function () {
$("#image_e_natural_minor").fadeOut(1000);
delay = 0;
} //mouse out
); //hover close
},1000); // delay time
}
else {
$("#hover_e_natural_minor").hover(
function () {
delay = 1;
$("#image_e_natural_minor").fadeIn(1000);
}, //mouse over
function () {
$("#image_e_natural_minor").fadeOut(1000);
delay = 0;
} //mouse out
); //hover close
}
This is what I had before that works but it will display two images at once.
$("#image_e_natural_minor").hide();
$("#hover_e_natural_minor").hover(
function () {
$("#image_e_natural_minor").fadeIn(1000);
}, //mouse over
function () {
$("#image_e_natural_minor").fadeOut(1000);
} //mouse out
); //hover close
$("#image_e_harmonic_minor").hide();
$("#hover_e_harmonic_minor").hover(
function () {
$("#image_e_harmonic_minor").fadeIn(1000);
}, //mouse over
function () {
$("#image_e_harmonic_minor").fadeOut(1000);
} //mouse out
); //hover close
Sorry for the poor syntax. I'm very new to programming.
jQuery functions fadeIn and fadeOut both have a callback param which is triggered when the animation finishes, so you can hook the fadeIn for current image call right when fadeOut finishes.
But: try this on a single image first; once you have it working try to rewrite it in a function you can call on every image. Remember DRY principle: Don't Repeat Yourself.
EDIT:
What I mean is: When hover over image A 'hover detector', the function should first fadeOut the currently visible image B (which you can get using :visible's jQuery selector) and when the fadeOut animation finishes it will call the fadeIn of image A (which you provided throw the callback param):
$("#image_e_natural_minor").hide();
$("#hover_e_natural_minor").hover(
function () {
$(".myImageClass:visible").fadeOut(1000, function(){$("#image_e_natural_minor").fadeIn(1000)});
}, //mouse over
function () {
$("#image_e_natural_minor").fadeOut(1000);
} //mouse out
); //hover close
Again: try this with a single image, and then rewrite it so it looks like:
$("#image_e_natural_minor").hide();
$("#hover_e_natural_minor").hover(
function(){showThis('#image_e_natural_minor')}, //mouse over
function(){hideThis('#image_e_natural_minor')} //mouse out
); //hover close
I think what you need is something like this. (In this example you also need to set the hover images to have class='hoverI'.)
var delayF = false,
mouseOn = null;
function setHandlers() {
$(".hoverI").hover(function() {
mouseOn = $('#' + event.target.id.replace('hover_e', 'image_e'));
if (!delayF) {
mouseOn.fadeIn(1000);
mouseOn = null;
}
}, function() {
var image = $('#' + event.target.id.replace('hover_e', 'image_e'));
if (mouseOn == image) mouseOn = null;
delayF = true;
image.fadeOut(1000, function() {
delayF = false;
if (mouseOn) {
mouseOn.fadeIn(1000);
mouseOn = null;
}
});
});
}
$("#image_e_natural_minor").hide();
$("#image_e_harmonic_minor").hide();
setHandlers();
I have a simple scroller for ads ;]
Need help whit pause it on hover.
$(document).ready(function(mnmTicker){
var mnmAdsInterval = 2000;
/* Do not modify code below */
var mnmAdsLenght = m3ads_numberadverts;
function mnmSlideAds(){
hT = $('.someClass').find('a');
hT2 = hT;
slideMargin = document.getElementsByClassName('a')[0].offsetHeight;
$(".someClass .a:first").clone().appendTo(".someClass");
$(".someClass .a:first").animate({"marginTop":-+slideMargin,},1800, function(){
$(this).remove();
});
};
var interval = setInterval(mnmSlideAds, mnmAdsInterval); [/code]
BTW. Im testing this:
$('.someClass .a').hover(function() {
clearInterval(interval);
}, function() {
interval = setInterval(mnmSlideAds, mnmAdsInterval);
});
but do not work ;/
You disabling only interval, but need to stop() animations too:
$('.someClass .a').hover(function() {
clearInterval(interval);
$(".someClass .a:first").stop();
}, function() {
interval = setInterval(mnmSlideAds, mnmAdsInterval);
});
Can anybody help me on this one...I have a button which when is hovered, triggers an action. But I'd like it to repeat it for as long as the button is hovered.
I'd appreciate any solution, be it in jquery or pure javascript - here is how my code looks at this moment (in jquery):
var scrollingposition = 0;
$('#button').hover(function(){
++scrollingposition;
$('#object').css("right", scrollingposition);
});
Now how can i put this into some kind of while loop, so that #object is moving px by px for as #button is hovered, not just when the mouse enters it?
OK... another stab at the answer:
$('myselector').each(function () {
var hovered = false;
var loop = window.setInterval(function () {
if (hovered) {
// ...
}
}, 250);
$(this).hover(
function () {
hovered = true;
},
function () {
hovered = false;
}
);
});
The 250 means the task repeats every quarter of a second. You can decrease this number to make it faster or increase it to make it slower.
Nathan's answer is a good start, but you should also use window.clearInterval when the mouse leaves the element (mouseleave event) to cancel the repeated action which was set up using setInterval(), because this way the "loop" is running only when the mouse pointer enters the element (mouseover event).
Here is a sample code:
function doSomethingRepeatedly(){
// do this repeatedly when hovering the element
}
var intervalId;
$(document).ready(function () {
$('#myelement').hover(function () {
var intervalDelay = 10;
// call doSomethingRepeatedly() function repeatedly with 10ms delay between the function calls
intervalId = setInterval(doSomethingRepeatedly, intervalDelay);
}, function () {
// cancel calling doSomethingRepeatedly() function repeatedly
clearInterval(intervalId);
});
});
I created a sample code on jsFiddle which demonstrates how to scroll the background-image of an element left-to-right and then backwards on hover with the code shown above:
http://jsfiddle.net/Sk8erPeter/HLT3J/15/
If its an animation you can "stop" an animation half way through. So it looks like you're moving something to the left so you could do:
var maxScroll = 9999;
$('#button').hover(
function(){ $('#object').animate({ "right":maxScroll+"px" }, 10000); },
function(){ $('#object').stop(); } );
var buttonHovered = false;
$('#button').hover(function () {
buttonHovered = true;
while (buttonHovered) {
...
}
},
function () {
buttonHovered = false;
});
If you want to do this for multiple objects, it might be better to make it a bit more object oriented than a global variable though.
Edit:
Think the best way of dealing with multiple objects is to put it in an .each() block:
$('myselector').each(function () {
var hovered = false;
$(this).hover(function () {
hovered = true;
while (hovered) {
...
}
},
function () {
hovered = false;
});
});
Edit2:
Or you could do it by adding a class:
$('selector').hover(function () {
$(this).addClass('hovered');
while ($(this).hasClass('hovered')) {
...
}
}, function () {
$(this).removeClass('hovered');
});
var scrollingposition = 0;
$('#button').hover(function(){
var $this = $(this);
var $obj = $("#object");
while ( $this.is(":hover") ) {
scrollingposition += 1;
$obj.css("right", scrollingposition);
}
});