Tweaking hover area for jQuery sliding boxes - javascript

I'm using some jQuery to create 3 boxes that on hover, slide up to reveal more content. My two questions are:
1) How can I tweak it so only hovering on the gray box actually activates the slide instead of the entire invisible area above the gray box?
2) Is there a better way to accomplish this? I'm a beginner when it comes to JavaScript and hacked a few things I found in Google searches together. For example, it'd be nice for the height to be generated automatically based on the content instead of relying on a fixed height.
http://jsfiddle.net/kUjax/
$(document).ready(function(){
$('.boxgrid.caption').hover(function(){
$(".cover", this).stop().animate({top:'120px'},{queue:false,duration:150});
}, function() {
$(".cover", this).stop().animate({top:'210px'},{queue:false,duration:150});
});
});

You almost did it yourself:
$(document).ready(function () {
$('.boxgrid .boxcaption').hover(function () {
$(this).stop().animate({top: '120px'}, {
queue: false,
duration: 150
});
}, function () {
$(this).stop().animate({top: '210px'}, {
queue: false,
duration: 150
});
});
});
http://jsfiddle.net/kUjax/1/

Related

multiple instances of fullpage.js

I am trying to use fullpage.js for two different sections on one website. Basically, when a slide is clicked on, it reveals a child wrapper div underneath with its own sections to vertically scroll through before the main section continues on.
Here is my code that I am working with. I'm trying to load it in through ajax but I'm wondering if there is an easier way I am overlooking.
$("#wrapper").fullpage({
verticalCentered: true,
resize : true,
anchors: ['section1', 'section2', 'section3', 'about'],
//menu:'#menu',
customScroll:true,
onLeave: function(index, nextIndex, direction){
//console.log(index+'|'+nextIndex+'|'+direction);
if (direction == 'down'){
$('.section:nth-child('+index+')').animate({'top':'0%'},0)
$('.section:nth-child('+nextIndex+')').animate({'top':'100%'},0).animate({'top':'0%'},500);
} else {
$('.section:nth-child('+nextIndex+')').animate({'top':'0%'},0);
$('.section:nth-child('+index+')').animate({'top':'0%'},0).animate({'top':'100%'},500).animate({'top':'500%'},0);
}
}
});
and then the code that removes it and adds a new wrapper:
$(".sub_section").click(function() {
$("#wrapper").fullpage.destroy('all');
if (sub_section_open == false) {
$("#left_border").animate({"borderLeftWidth" : "0px"}, 300);
$("#right_border").animate({"borderRightWidth" : "0px"}, 300);
$("#top_border").animate({"borderTopWidth" : "0px"}, 300, function() {
$("#left_border").hide();
$("#right_border").hide();
$("#top_border").hide();
});
$(".sub_section .letters").slideUp("slow", function(){
$(".sub_section .content").css({'z-index': 1});
});
sub_section_open = true;
$(".btn_sub_section_close").show();
$( "#wrapper" ).load( "section1.html" );
$("#section1").fullpage({
verticalCentered: true,
resize : true,
anchors: ['ssection1', 'ssection2', 'ssection3', 'ssection4'],
menu:'#menu'
});
}
});
Any ideas? Thanks!
fullpage.js only supports one instance.
It is a fullpage plugin and it is not made to support them as it doesn't make sense. It is full page, all the page will be part of one instance of fullpage.
You can easily see evidences of it in the code, for example in this line:
$('.fp-section').each(function(index){
Any section on the page, no matter which container/wrapper it uses, will be treated inside one single instance of fullpage.
On GitHub, Fullpage.js has labeled the issue as enhancement. So there is a chance we get the multiple instances option in a future version :)

carouFredSel: Show partial items?

I'm using carouFredSel to create a vertical carousel. Everything works great, except I would prefer if partial items would be shown at the bottom, cropped, rather than being hidden. This way it would indicate to users that there are additional items that can be scrolled.
I have been reading the documentation, but so far can't tell if what I am after is possible.
Check out the JSFiddle to see what I mean. Watch the bottom most item on the page.
Javascript
$("ul").carouFredSel({
direction: "up",
align: "top",
width: 100,
height: "100%",
items: {
visible: "variable",
width: 100,
height: "variable"
},
scroll: {
items: 1,
mousewheel: true,
easing: "swing",
duration: 500
},
auto: false,
prev: {
button: ".prev",
key: "up"
},
next: {
button: ".next",
key: "down"
}
});​
This is a bit of a hack, but it works. Set the height of the scroller (in this case, ul) to 150% and the parent element (in this case, body) to overflow: hidden. Now the bottom most element is off screen.
Javascript
$("ul").carouFredSel({
height: "150%"
});
CSS
body {
overflow: hidden;
}
Ha, caroufredsel supports it, no hacks required :))! You can achieve it with the following option:
items: {
visible: '+1'
}
EDIT: This suffers from a problem though. If number of whole visible items + 1 == number of all items, then carousel cannot be scrolled even though one image is visible just partially. You can overcome this issue by setting e.g. minimum: 1 but it is not always a way to go (e.g. if number of images is dynamic and you don't want scroll handlers to appear when there is just one or two images.).
The next not visible element in the vertical carousel is pushed down by the margin.
I'm currently overriding it by the following function:
function cropCarousel () {
var visibleElements = this.triggerHandler("currentVisible"), // show all visible
$lastElement = $(visibleElements[visibleElements.length - 1]); // get the last one
$lastElement.css('margin-bottom', '30px'); // amend the margin
};
cropCarousel.call($('#your_carousel_id'));
The downside of it that you will have to call this function on carousel init and on up and down events. But it works ;)

jquery menu slides in and bounces

http://jsfiddle.net/E6cUF/
The idea is that after the page finished loading the grey box slides left from behind the green box, if possible bounce a little.
Edit: made a new version based on changes people made to the jsfiddle and the comment from Nicola
http://jsfiddle.net/RBD3K/
However the grey one should be behind the green one and slide from right to left so it appears
To have it bounce you are missing two things i think:
1) you need to load jquery UI.
2) put the bounce effect after the animate effect:
$('#test').click(function() {
var $marginLefty = $('.left');
$marginLefty.animate({
marginLeft: parseInt($marginLefty.css('marginLeft'),10) == 0 ?
$marginLefty.outerWidth() :
0
}).effect("bounce", { times:5 }, 300);
});
updated fiddle: http://jsfiddle.net/nicolapeluchetti/E6cUF/4/
Try this . Not sure if this is what you want.
$('#test').click(function() {
var $marginLefty = $('.left');
var $marginRight = $('.right');
$marginLefty.animate({
marginLeft: 0
},{ duration: 200, queue: false });
$marginRight.animate({
marginLeft: 100
},{ duration: 200, queue: false });
});
Update: from your updated fiddle,add for .right position :absolute;z-index:1000 as css
http://jsfiddle.net/E6cUF/11/

Shade entire page, unshade selected elements on hover

I'm trying to make a page inspection tool, where:
The whole page is shaded
Hovered elements are unshaded.
Unlike a lightbox type app (which is similar), the hovered items should remain in place and (ideally) not be duplicated.
Originally, looking at the image lightbox implementations, I thought of appending an overlay to the document, then raising the z-index of elements upon hover. However this technique does not work in this case, as the overlay blocks additional mouse hovers:
$(function() {
window.alert('started');
$('<div id="overlay" />').hide().appendTo('body').fadeIn('slow');
$("p").hover(
function () {
$(this).css( {"z-index":5} );
},
function () {
$(this).css( {"z-index":0} );
}
);
Alternatively, JQueryTools has an 'expose' and 'mask' tool, which I have tried with the code below:
$(function() {
$("a").click(function() {
alert("Hello world!");
});
// Mask whole page
$(document).mask("#222");
// Mask and expose on however / unhover
$("p").hover(
function () {
$(this).expose();
},
function () {
$(this).mask();
}
);
});
Hovering does not work unless I disable the initial page masking. Any thoughts of how best to achieve this, with plain JQuery, JQuery tools expose, or some other technique? Thankyou!
What you can do is make a copy of the element and insert it back into the DOM outside of your overlay (with a higher z-index). You'll need to calculate its position to do so, but that's not too difficult.
Here is a working example.
In writing this I re-learned the fact that something with zero opacity cannot trigger an event. Therefore you can't use .fade(), you have to specifically set the opacity to a non-zero but very small number.
$(document).ready(function() { init() })
function init() {
$('.overlay').show()
$('.available').each(function() {
var newDiv = $('<div>').appendTo('body');
var myPos = $(this).position()
newDiv.addClass('available')
newDiv.addClass('peek')
newDiv.addClass('demoBorder')
newDiv.css('top',myPos.top+'px')
newDiv.css('left',myPos.left+'px')
newDiv.css('height',$(this).height()+'px')
newDiv.css('width',$(this).width()+'px')
newDiv.hover(function()
{newDiv.addClass('full');newDiv.stop();newDiv.fadeTo('fast',.9)},function()
{newDiv.removeClass('full');newDiv.fadeTo('fast',.1)})
})
}
Sorry for the prototype syntax, but this might give you a good idea.
function overlay() {
var div = document.createElement('div');
div.setStyle({
position: "absolute",
left: "0px",
right: "0px",
top: "0px",
bottom: "0px",
backgroundColor: "#000000",
opacity: "0.2",
zIndex: "20"
})
div.setAttribute('id','over');
$('body').insert(div);
}
$(document).observe('mousemove', function(e) {
var left = e.clientX,
top = e.clientY,
ele = document.elementFromPoint(left,top);
//from here you can create that empty div and insert this element in there
})
overlay();

jQuery animate() to position issue

I'm just working on my personal website, giving it a bit of a revamp.
I've implemented a sort of 'accordion' menu feature, where if a menu button is clicked, the "non-clicked" buttons disappear, and then the clicked button is moved to the top of the list, where then a panel animates down in which I will be putting text content.
In Firefox this works perfectly, however in IE and Chrome the button jumps to the top of the page and then animates to position, instead of animating from where it started from.
Anyone any ideas how to fix this?
Offending code:
function Accordion(e)
{
var o =
{
init: function()
{
o.button = e;
o.addClickHandler();
},
addClickHandler: function()
{
o.button.click(function(){
o.button.removeClass('unselected');
o.button.addClass('selected');
o.fader();
});
},
fader: function()
{
$j('.unselected').animate({opacity:0}, 1000);
var wait = setInterval(function() {
if(!$j('.unselected').is(":animated") ) {
clearInterval(wait);
o.shifter();
}
}, 100);
},
shifter: function()
{
o.button.css({'position':'absolute'});
o.button.animate({top:91}, 500, o.createInfoBox);
},
createInfoBox: function()
{
var buttonParent = o.button.parent();
buttonParent.append("<div class='infoBox'></div>");
$j('.infoBox').animate({height:390});
}
}
o.init();
return o;
}
}
The issue lies within the shifter function, where I'm setting the position to absolute and then animating so the desired effect can be achieved. I understand why it's doing this (presume it's just resetting itself to top:0 and then animating to top:91) but does anyone have a quick solution? It's late and it's doing my head in.
Much appreciated,
Dave
HAve you tried using the current position of the element when you switch it to absolute... for example:
function() {
var currentp = $(this).offset();
o.button.css({'position':'absolute', top: currentp.top});
o.button.animate({top:91}, 500, o.createInfoBox);
}
Note there are two different offset functions and im not sure which one you want use here so you might want to review the docs on that.
Also you could always just re-theme the jQuery-ui accordian and save yourself the trouble ;-)

Categories