quit loop on JS event - javascript

so im a little rusty with my JS, but here is my code...
basically i have an image, that on mouseover, it cycles through a hidden div full of other images... fading it out, replacing the src, and fading back in. it works great. but once it gets through all the images, i want it to start back over and keep looping through them until the mouseout event stops it.
i thought i could just call the function again from within the function cycle_images($(current_image));, but that leads to the browser freaking out, understandably. what is a good method to accomplish this?
$.fn.image_cycler = function(options){
// default configuration properties
var defaults = {
fade_delay: 150,
image_duration: 1500,
repeatCycle: true,
};
var options = $.extend(defaults, options);
this.each(function(){
var product = $(this);
var image = $('div.image>a.product_link>img', product);
var description = $('div.image>div.description', product);
var all_images = $('div.all_images', product);
var next_image = ($(all_images).find('img[src="' + $(image).attr('src') + '"]').next('img').attr('src')) ? $(all_images).find('img[src="' + $(image).attr('src') + '"]').next('img') : $(all_images).children('img').first();;
// mouseover
image.fadeOut(options.fade_delay, function(){
image.attr('src', next_image.attr('src'));
image.fadeIn(options.fade_delay);
});
if (options.repeatCycle){
var loop = function() {
product.image_cycler();
}
setTimeout(loop,options.image_duration);
}
});
};
$(document).ready(function() {
$('div.product').hover(function(){
$(this).image_cycler();
}, function(){
$(this).image_cycler({repeatCycle: false});
});
});

It sounds like you want it to re-cycle and stop on mouseout.
After you define the cycle_images() function, add a flag, repeatCycle
cycle_images.repeatCycle = true;
At the end of the cycle_images function, add a recursive call with a timeout
if (this.repeatCycle) {
var f = function() {
return cycle_images.apply(this, [$current_image]);
}
setTimeout(f,50);
}
Then in mouseout,
cycle_images.repeatCycle = false;

Related

temporarily stopping function jquery

var start = $('#start_img');
start.on('click', function(){
var piano = $('.piano');
piano.each(function(index){
$(this).hide().delay(700 * index).fadeIn(700*index);
start.off('click');
})
});
You can see that I have used the start.off('click') method, to stop the Event Listener from running again once it has been called. But the thing is, I only want the Event listener to be off during the time that the event is running. So that it cannot be called again while the event is still running. But once the event has finished, I want it to be 'callable' again. Does anyone know how t do this?
other way of doing this (doesn't work neither). Can anyone help me here. The other one is now clear.
var start = $('#start_img');
start.on('click', function() {
var q = 0;
var piano = $('.piano');
if (q === 1) {
return; // don't do animations
}
else{
piano.each(function(index) {
q = 1;
$(this).hide()
.delay(700 * index)
.fadeIn(700 * index, function() {
// remove from each instance when animation completes
q = 0
});
});}
});
You could toggle a class on active elements as well and then you can check for that class and not do anything if it exists
start.on('click', function() {
var piano = $('.piano');
if (piano.hasClass('active')) {
return; // don't do animations
}
piano.each(function(index) {
$(this).addClass('active')
.hide()
.delay(700 * index)
.fadeIn(700 * index, function() {
// remove from each instance when animation completes
$(this).removeClass('active')
});
});
});
For only one object, you could use a global variable for this, in my case, I'll be using isRunning:
var start = $('#start_img');
var isRunning = false;
start.on('click', function(){
if (!isRunning){
isRunning = true;
var piano = $('.piano');
piano.each(function(index){
$(this).hide().delay(700 * index).fadeIn(700*index, function(){
isRunning = false;
});
start.off('click');
});
}
});
This way your app shouldn't run the code until isRunning == false, which should happen after fadeIn is completed.
Syntaxes:
.fadeIn([duration] [,complete]);
.fadeIn(options);
.fadeIn([duration] [,easing] [,complete]);
For two or more objects, Charlietfl's answer should work perfectly.

Making bootstrap-tags responsive, jquery events lost

I am trying to change this demo:
http://maxwells.github.io/bootstrap-tags.html
into a responsive version in which I can set it to readOnly and remove it from readOnly as I like. This code:
var alltags = ["new tag", "testtag", "tets", "wawa", "wtf", "wtf2"];
$(document).ready(function() {
var tagbox = $('#my-tag-list').tags({
suggestions: alltags
});
var tagenable = true;
$('#my-tag-list').focusout(function() {
if (tagenable) {
tagbox.readOnly = true;
$('#my-tag-list').empty();
tagbox.init();
tagenable = false;
}
});
$('#my-tag-list').click(function() {
if(!tagenable) {
tagbox.readOnly = false;
$('#my-tag-list').empty();
tagbox.init();
tagenable = true;
}
});
});
seems to work fairly well, it makes everything readonly after focusout and editable when I click it. However, the editing does not work since I cannot insert new tags nor delete them (seems to be like event handling was lost or something like that).
I am guessing that emptying the #my-tag-list div is causing this, but I cannot yet find a way to use for instance "detach" instead that removes everything inside (not the element itself) and putting it back in again.
I tried to make a JS Fiddle, but it isn't really working so well yet:
http://jsfiddle.net/tomzooi/cLxz0L06/
The thing that does work is a save of the entire website, which is here:
https://www.dropbox.com/sh/ldbfqjol3pppu2k/AABhuJA4A6j9XTxUKBEzoH6za?dl=0
this link has the unminimized JS of the bootstrap-tags stuff I am using:
https://github.com/maxwells/bootstrap-tags/blob/master/dist/js/bootstrap-tags.js
So far I managed to do this with some modifications of the bootstrap javascript code. I use two different tagbox which I hide and unhide with some click events.
var tagbox = $('#my-tag-list').tags({
suggestions: alltags,
tagData: tmp_tags,
afterAddingTag: function(tag) { tagboxro.addTag(tag); },
afterDeletingTag: function(tag) {tagboxro.removeTag(tag); }
});
var tagboxro = $('#my-tag-listro').tags({
suggestions: alltags,
tagData: tmp_tags,
readOnly: 'true',
tagSize: 'sm',
tagClass: 'btn-info pull-right'
});
$(document).mouseup(function (e) {
var container = $("#my-tag-list");
if (!container.is(e.target) // if the target of the click isn't the container...
&& container.has(e.target).length === 0) { // ... nor a descendant of the container
if (tagsave) {
$("#my-tag-listro").show();
$("#my-tag-list").hide();
var tags = tagbox.getTags();
$.post("%basedir%/save.php", {
editorID:"new_tags",
tags:tags
}, function(data,status){
//alert("Data: " + data + "\nStatus: " + status);
});
tagsave = false;
}
}
});
$('#my-tag-listro').click(function() {
tagsave = true;
//$(".tag-list").toggle();
$("#my-tag-list").show();
$("#my-tag-listro").hide();
});
I had to modify the code of bootstrap-tags.js to allow for this since it normally deletes all of the usefull functions when it is considered readonly in the init function:
if (this.readOnly) {
this.renderReadOnly();
this.removeTag = function(tag) {
if (_this.tagsArray.indexOf(tag) > -1) {
_this.tagsArray.splice(_this.tagsArray.indexOf(tag), 1);
_this.renderReadOnly();
}
return _this;
};
this.removeTagClicked = function() {};
this.removeLastTag = function() {};
this.addTag = function(tag) {
_this.tagsArray.push(tag);
_this.renderReadOnly();
return _this;
};
this.addTagWithContent = function() {};
this.renameTag = function() {};
return this.setPopover = function() {};
}
would be awesome if this feature was incorporated in a somewhat less hacky way though :)

How to achieve a queue of object instances of jQuery modals, assuring only one instance is on per time?

I've a task of building a modal prompt, that's been simple so far describing its methods like "show", "hide" when it comes down just to DOM manupulation.
Now comes the hardship for me... Imagine we have a page on which there are several immediate calls to construct and show several modals on one page
//on page load:
$("browser-deprecated-modal").modal();
$("change-your-city-modal").modal();
$("promotion-modal").modal();
By default my Modal (and other libraries i tried) construct all of these modals at once and show them overlapping each other in reverse order -
i.e $(promotion-modal) is on the top, while the
$("browser-deprecated-modal") will be below all of them. that's not what i want, let alone overlapping overlays.
I need each modal to show up only when the previous one (if there'are any) has been closed. So, first we should see "browser-deprecated-modal" (no other modals underneath), upon closing it there must pop up the second one and so on.
I've been trying to work it out with this:
$.fn.modal = function(options) {
return this.each(function() {
if (Modal.running) {
Modal.toInstantiateLater.push({this,options});
} else {
var md = new Modal(this, options);
}
});
}
destroy :function () {
....
if (Modal.toInstantiateLater.length)
new Modal (Modal.toInstantiateLater[0][0],Modal.toInstantiateLater[0][1]);
}
keeping a track of all calls to construct a Modal in a array and in the "destroy" method make a check of this array is not empty.
but it seems awkward and buggy me thinks.
i need a robust and clear solution. I've been thinking about $.Callbacks or $.Deferred,
kinda set up a Callback queue
if (Modal.running) { //if one Modal is already running
var cb = $.Callbacks();
cb.add(function(){
new Modal(this, options);
});
} else { //the road is clear
var md = new Modal(this, options);
}
and to trigger firing cb in the destroy method, but i'm new to this stuff and stuck and cannot progress, whether it's right or not, or other approach is more suitable.
Besides, I read that callbacks fire all the functions at once (if we had more than one extra modal in a queue), which is not right, because I need to fire Modal creation one by one and clear the Callback queue one by one.
Please help me in this mess.
My code jsfiddle
I got rid of the counter variable, as you can use toInstantiateLater to keep track of where you are, and only had to make a few changes. Give this a try...
Javscript
function Modal(el, opts){
this.el = $(el);
this.opts = opts;
this.overlay = $("<div class='overlay' id='overlay"+Modal.counter+"'></div>");
this.wrap = $("<div class='wrap' id='wrap"+Modal.counter+"'></div>");
this.replace = $("<div class='replace' id='replace"+Modal.counter+"'></div>");
this.close = $("<span class='close' id='close"+Modal.counter+"'></span>")
if (Modal.running) {
Modal.toInstantiateLater.push(this);
}
else {
Modal.running = true;
this.show();
}
}
Modal.destroyAll = function() {
Modal.prototype.destroyAll();
};
Modal.prototype = {
show: function() {
var s = this;
s.wrap.append(s.close);
s.el.before(s.replace).appendTo(s.wrap).show();
$('body').append(s.overlay).append(s.wrap);
s.bindEvents();
Modal.currentModal = s;
},
bindEvents: function() {
var s = this;
s.close.on("click.modal",function(e){
s.destroy.call(s,e);
});
},
destroy: function(e) {
var s = this;
s.replace.replaceWith(s.el.hide());
s.wrap.remove();
s.overlay.remove();
if (Modal.toInstantiateLater.length > 0) {
Modal.toInstantiateLater.shift().show();
}
else {
Modal.running = false;
}
},
destroyAll: function(e) {
Modal.toInstantiateLater = [];
Modal.currentModal.destroy();
}
}
Modal.running = false;
Modal.toInstantiateLater = [];
Modal.currentModal = {};
$.fn.modal = function(options) {
return this.each(function() {
var md = new Modal(this, options);
});
}
$("document").ready(function(){
$("#browser-deprecated-modal").modal();
$("#change-your-city-modal").modal();
$("#promotion-modal").modal();
$("#destroy-all").on("click", function() {
Modal.destroyAll();
});
});
jsfiddle example
http://jsfiddle.net/zz9ccbLn/4/

Have a JS function *constantly* listen for clicks?

This seems like something that should be really simple. I have a few images animating on a page, but I want the user to be able to click on any one of them at any time and then go to a related page.
Problem is, evidently clicks stopped being listened for at some point if I use a loop to search through an array of clickable items. I thought having a function separate from the one that handles the animation would allow it to constantly listen no matter what the animated images were doing, but it seems once the "complete" function is called (for the "animate" function), the function that is listening for clicks (wholly separate from the animation, and using setInterval to listen for clicks) stops listening.
Oddly enough, I believe I did not have this problem when just listening for "img" instead of an array of different images.
Ideas as to what I'm doing wrong? More info needed? I tried to remove any irrelevant code below.
var links = ["#portfolio", "#animations", "#games"];
$(function() {
setInterval(function(){
for (var i=0; i<links.length; i++) {
$(links[i]).click(function(){
window.location.replace("http://www.gog.com");
});
}
}, 500);
});
$(document).ready(function() {
links.forEach(function(current){
//various vars
var link = $(current);
var footer3 = $(".footer3");
var over = true;
var randomTime = 3000*(Math.random()+1);
//dust vars
...
//image vars
var imageUrlShadow = 'images/home/non-char/shadow-pngs/shadow';
var imageUrlCharacter = 'images/home/char-pngs/';
var portfolioSrc;
var animationsSrc;
var gamesSrc;
//animate the characters
link.animate({
top: '0'
}, {
duration: randomTime,
easing: 'easeOutBounce',
step: function(now, tween) {
/*handle shadows*/
...
/*handle characters*/
if (now < -25 && over == false) {
...
} else if (now >= -25) {
...
}
$("#"+ link.data("portfolio")).attr('src', portfolioSrc);
$("#"+ link.data("animations")).attr('src', animationsSrc);
$("#"+ link.data("games")).attr('src', gamesSrc);
/*handle dust*/
var dustDoneMoving = '-50px';
var dustNotMoving = '0px';
//if link is NOT touching footer3
...
//set to "sitting" images when animation is done
complete: function() {
...
setTimeout(function() {
...
}, 1000);
}
})
})
});
var links = ["#portfolio", "#animations", "#games"];
$(function() {
$(links.join(',')).click(function(){
window.location.replace("http://www.gog.com");
});
});
One time only and listener will be attached to the image.
Consider listening via window
var links = ["#portfolio", "#animations", "#games"];
$(window).on('click', links.join(', '), function() {
// do what you wanna
});
I apologize, it turns out that, apparently, the problem was related to the z-index. There were some other divs with 0 opacity "covering up" the array divs.
Setting the z-index to 2 for the array items has fixed the matter. Again, my apologies.
I have modified your code. See, if this works now.
I have added one more array which contains some URLs. So, the intention is that on click of a particular element, its respective URL should be opened.
So, the sequence in these array will matter with respect to each other.
Also, I have made use of 'on', so that 'click' event should be handled even during animation.
var links = ["#portfolio", "#animations", "#games"];
var sites = ["http://www.gog.com", "http://www.gog1.com", "http://www.gog2.com"]; //change these to the expected URLs
$(function() {
for (var i=0; i<links.length; i++) {
$(document ).on("click",links[i],function(){
window.location.replace(sites[i]);
});
}
});

Trying to get my slideshow plugin to infinitely loop (by going back to the first state)

I wrote a slideshow plugin, but for some reason maybe because I've been working on it all day, I can't figure out exactly how to get it to go back to state one, once it's reached the very last state when it's on auto mode.
I'm thinking it's an architectual issue at this point, because basically I'm attaching the amount to scroll left to (negatively) for each panel (a panel contains 4 images which is what is currently shown to the user). The first tab should get: 0, the second 680, the third, 1360, etc. This is just done by calculating the width of the 4 images plus the padding.
I have it on a setTimeout(function(){}) currently to automatically move it which works pretty well (unless you also click tabs, but that's another issue). I just want to make it so when it's at the last state (numTabs - 1), to animate and move its state back to the first one.
Code:
(function($) {
var methods = {
init: function(options) {
var settings = $.extend({
'speed': '1000',
'interval': '1000',
'auto': 'on'
}, options);
return this.each(function() {
var $wrapper = $(this);
var $sliderContainer = $wrapper.find('.js-slider-container');
$sliderContainer.hide().fadeIn();
var $tabs = $wrapper.find('.js-slider-tabs li a');
var numTabs = $tabs.size();
var innerWidth = $wrapper.find('.js-slider-container').width();
var $elements = $wrapper.find('.js-slider-container a');
var $firstElement = $elements.first();
var containerHeight = $firstElement.height();
$sliderContainer.height(containerHeight);
// Loop through each list element in `.js-slider-tabs` and add the
// distance to move for each "panel". A panel in this example is 4 images
$tabs.each(function(i) {
// Set amount to scroll for each tab
if (i === 1) {
$(this).attr('data-to-move', innerWidth + 20); // 20 is the padding between elements
} else {
$(this).attr('data-to-move', innerWidth * (i) + (i * 20));
}
});
// If they hovered on the panel, add paused to the data attribute
$('.js-slider-container').hover(function() {
$sliderContainer.attr('data-paused', true);
}, function() {
$sliderContainer.attr('data-paused', false);
});
// Start the auto slide
if (settings.auto === 'on') {
methods.auto($tabs, settings, $sliderContainer);
}
$tabs.click(function() {
var $tab = $(this);
var $panelNum = $(this).attr('data-slider-panel');
var $amountToMove = $(this).attr('data-to-move');
// Remove the active class of the `li` if it contains it
$tabs.each(function() {
var $tab = $(this);
if ($tab.parent().hasClass('active')) {
$tab.parent().removeClass('active');
}
});
// Add active state to current tab
$tab.parent().addClass('active');
// Animate to panel position
methods.animate($amountToMove, settings);
return false;
});
});
},
auto: function($tabs, settings, $sliderContainer) {
$tabs.each(function(i) {
var $amountToMove = $(this).attr('data-to-move');
setTimeout(function() {
methods.animate($amountToMove, settings, i, $sliderContainer);
}, i * settings.interval);
});
},
animate: function($amountToMove, settings, i, $sliderContainer) {
// Animate
$('.js-slider-tabs li').eq(i - 1).removeClass('active');
$('.js-slider-tabs li').eq(i).addClass('active');
$('#js-to-move').animate({
'left': -$amountToMove
}, settings.speed, 'linear', function() {});
}
};
$.fn.slider = function(method) {
if (methods[method]) {
return methods[method].apply(this, Array.prototype.slice.call(arguments, 1));
} else if (typeof method === 'object' || !method) {
return methods.init.apply(this, arguments);
} else {
return false;
}
};
})(jQuery);
$(window).ready(function() {
$('.js-slider').slider({
'speed': '10000',
'interval': '10000',
'auto': 'on'
});
});​
The auto and animate methods are where the magic happens. The parameters speed is how fast it's animated and interval is how often, currently set at 10 seconds.
Can anyone help me figure out how to get this to "infinitely loop", if you will?
Here is a JSFiddle
It would probably be better to let go of the .each() and setTimeout() combo and use just setInterval() instead. Using .each() naturally limits your loop to the length of your collection, so it's better to use a looping mechanism that's not, and that you can break at any point you choose.
Besides, you can readily identify the current visible element by just checking for .active, from what I can see.
You'd probably need something like this:
setInterval(function () {
// do this check here.
// it saves you a function call and having to pass in $sliderContainer
if ($sliderContainer.attr('data-paused') === 'true') { return; }
// you really need to just pass in the settings object.
// the current element you can identify (as mentioned),
// and $amountToMove is derivable from that.
methods.animate(settings);
}, i * settings.interval);
// ...
// cache your slider tabs outside of the function
// and just form a closure on that to speed up your manips
var slidertabs = $('.js-slider-tabs');
animate : function (settings) {
// identify the current tab
var current = slidertabs.find('li.active'),
// and then do some magic to determine the next element in the loop
next = current.next().length >= 0 ?
current.next() :
slidertabs.find('li:eq(0)')
;
current.removeClass('active');
next.addClass('active');
// do your stuff
};
The code is not optimized, but I hope you see where I'm getting at here.

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