I have an image with an overlay DIV which shows 2 images when I hover on the image, this works fine, but I want it to be dynamic and work for countless images on the page, currently it works for the first picture only, I'm not that good with javascript and jquery and would appreciate your help on this one.
Jquery Code:
$("#imageOverlay").hover(
function() {
$(this).children("img").fadeTo(200, 0.7).end().children("#hover").show();
},
function() {
$(this).children("img").fadeTo(200, 1).end().children("#hover").hide();
});
HTML Code:
<div id="imageOverlay">
<div id="hover">
<img src="http://placehold.it/100x30&text=Full View" />
<img src="http://placehold.it/100x30&text=Similar" />
</div>
<img src="http://placehold.it/1000x1000&text=Thumbnail">
</div>
CSS Code:
#imageOverlay {
display: inline;
position: relative;
}
#imageOverlay #hover {
display: none;
position: absolute;
margin-top: 10px;
margin-right: 10px;
z-index: 2;
}
#imageOverlay #hover a {
width: 100px;
height: 30px;
display: block;
margin-bottom: 5px;
}
Use a class for #imageOverlay and #hover, you can only have one instance of an ID, so when you have more than one of those IDs, the function is only finding the first one. Also, just fade the container box, not each individual image. Also, use stop() before an animation to make sure you don't get weird behavior when people are mousing on and off your element. Then, putting the main image first ensures that the hovered images are "on top" without having to worry about z-index.
HTML
<div class="imageOverlay">
<img src="http://placehold.it/1000x1000&text=Thumbnail">
<div class="hover">
<img src="http://placehold.it/100x30&text=Full View" />
<img src="http://placehold.it/100x30&text=Similar" />
</div>
</div>
JS
//fade out the images initially
$(".imageOverlay .hover").fadeTo(0, 0)
$(".imageOverlay").hover(
function() {
$(this).find(".hover").stop().fadeTo(200, 1);
},
function() {
$(this).find(".hover").stop().fadeTo(200, 0);
} //when writing clean code, be sure your closer ends at the same indent as your opener
);
CSS
.imageOverlay {
display: inline-block;
position: relative;
}
.imageOverlay .hover {
position: absolute;
top: 10px;
right: 10px;
}
.imageOverlay .hover a {
width: 100px;
height: 30px;
display: block;
margin-bottom: 5px;
}
And your images should show up on top when you hover!
Make #imageOverlay a class and apply it to multiple attributes in your html.
css:
.imageOverlay
//css rules
jquery:
$(".imageOverlay").hover(
function() {
$(this).children("img").fadeTo(200, 0.7).end().children("#hover").show();
},
function() {
$(this).children("img").fadeTo(200, 1).end().children("#hover").hide();
});
html:
<div class="imageOverlay">
// do stuff
</div>
<div class="imageOverlay">
// do stuff
</div>
Related
I have two images of arrows, up and down. My problem is when I use slideToggle(), it toggles up and down, but the image stays the same rather then changing. For instance, if I toggle up, the image should automatically change to the downward arrow and vice versa. Also, these arrows should be moved to the top of the page once the toggle happens. The current code displays two arrows, I would like that to be one arrow that changes based on the toggle.
What I have so far..
HTML:
<div id="toggleParam">
<input type="image" class="upArrow" src="~/Content/Images/Reserved.ReportViewerWebControl.png" name="Show / Hide Parameters" />
<input type="image" class="downArrow" src="~/Content/Images/downArrow.png" name="Show / Hide Parameters" />
</div>
CSS:
.upArrow{
display: block;
margin-left: 690px;
margin-top: 0px;
border-width: 5px;
padding-bottom: 0px;
cursor: pointer;
height: 7pt;
}
.downArrow{
display: block;
margin-left: 760px;
margin-right: 70px;
margin-top: -10px;
border-width: 5px;
padding-bottom: 0px;
cursor: pointer;
height: 7.5pt;
}
JavaScript/JQuery:
$(document).ready(function () {
$('#toggleParam').on("click", function () {
$('.dropdown').slideToggle();
});
What I need is shown in these two pictures..
I realize missing a lot of code on the JS part.. I am working on it while asking this question. Thanks for the help!
You need to simply include the arrows' elements in the toggle function accordingly:
$('#toggleParam').on("click", function () {
$('.downArrow, .upArrow').toggle();
$('.dropdown').slideToggle();
});
Also in the beginning you need to hide one of the arrows (not sure which one in your case):
.downArrow{
display: none;
...
.upArrow{
display: block;
Try this (note - there's n-ways to do this; this is just how i'd do it).
<!--index.html-->
<div id="toggleParam" class="toggle-param--up">
<input type="image" class="up-arrow" src="~/Content/Images/Reserved.ReportViewerWebControl.png" name="Show / Hide Parameters" />
<input type="image" class="down-arrow" src="~/Content/Images/downArrow.png" name="Show / Hide Parameters" />
</div>
/* app.css */
.toggle-param--up .down-arrow { display; none;}
.toggle-param--down .up-arrow { display; none;}
//app.js
$('#toggleParam').on("click", function (e) {
// the rest of your logic goes here....
var isUp = $(e.target).hasClass("toggle-param--up"),
directionClass = { true: "toggle-param--up", false: "toggle-param--down"};
$(e).target.removeClass(directionClass[isUp]).addClass(directionClass[!isUp];
});
// JavaScript Document
$('.page').hide();
$(".btns").click(function(e){
e.preventDefault(); //this method stops the default action of an element from happening.
var $me = $(this); //$(this) references .btns, the object in local scope.
var $myContent = $($me.attr('href')); //pulls href of page 01, 02, or 03.
$('.page').hide(); //hides all pages
$myContent.fadeIn();//fades in clicked href connected to btn
$(".btns").removeClass('selected');//
$me.addClass('selected');
});
*{
border-spacing: 0px;
}
body{
margin: 0px;
padding: 0px;
}
.circle-container {
position: relative;
width: 24em;
height: 24em;
padding: 2.8em;
/*2.8em = 2em*1.4 (2em = half the width of a link with img, 1.4 = sqrt(2))*/
border: dashed 1px;
border-radius: 50%;
margin: 1.75em auto 0;
}
.circle-container a {
display: block;
position: absolute;
top: 50%; left: 50%;
width: 4em; height: 4em;
margin: -2em;
}
.circle-container img { display: block; width: 100%; }
.deg0 { transform: translate(12em); }
<div class="body_content">
<div class="page" id="page_01">
<h2>1. Category 1</h2>
</div>
</div>
<div class="circle-container">
<nav class="navigation">
<a href="#page_01" class="btns deg0" >
<img id="one" src="imgs/button.png" alt="page01"/>
</a>
</nav>
</div>
I have a unique situation that I would like to discuss with you all. I am trying to create a web page that has a circular navigation, as shown here enter image description here
Each one of these buttons would display content when clicked, like an in-page link. The JQuery is as shown enter image description here
The concept seems simple enough, force all content to hide, when a user clicks a button, the page content linked to that button shows. It works when the links are inline or block display, but when in a circle, the links don't work, the button content doesn't show. Has anyone worked with a similar issue? Or would anyone have a potential solution? I apologize for the vagueness of the questions but the issue seems multi-faceted. Any advice or ideas would be greatly appreciated.
Are you sure your jQuery reference is working? I don't see any issue with the code, the click event should fire when you click on the links. Check the console for any errors, I strongly believe jQuery might not get loaded.
I'm new to jquery. I'm trying to write a script that will hide the div "box" and all children. When the user scrolls to the bottom of the page, the div "box" and all children display. For time's sake, we'll say the children are "chamber1", "chamber2" and "chamber 3".
when I hide "box", it only removes that div.
$(document).ready(function() {
$("#box").hide();
});
Apologies for lack of code, but I'm having trouble understanding this lesson and I can't find an exact example of what I'm trying to do through my internet searches.
Thank you!
If you to hide the box when you reach the bottom of the page, you javascript should be as follows:
JAVASCRIPT:
$(document).ready(function() {
$(document).on("scroll", function(){
if ( window.scrollMaxY == window.scrollY ) {
$("#box").hide();
}
})
});
HTML:
<div id="box">
<div>Chamber 1</div>
<div>Chamber 2</div>
<div>Chamber 3</div>
</div>
You should make sure that the div has id "box". If you're working with a div of class "box" then you would use:
$(document).ready(function() {
$(".box").hide();
});
I think this might help you and would be better to understand. A good explantion is given below here with demo.
$(window).scroll(function() {
if ($(window).scrollTop() + $(window).outerHeight() == $(document).outerHeight()) {
//Script for activity on reaching bottom of document
$("#box").fadeOut();
} else // optional
{
$("#box").fadeIn();
}
});
body {
margin: 0px;
width: 100%;
}
.container {
position: relative;
height: 900px;
width: 100%;
background: #fee;
}
#box {
position: fixed;
top: 50px;
left: 0px;
background: lightblue;
height: auto;
padding: 15px;
overflow: hidden;
max-width: 250px;
width: 210px;
}
#box > div {
margin: 5px;
background: #F33636;
padding: 10px;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<div class="container">
</div>
<div id="box">
Box
<hr>
<div class="chamber1">
Chamber 1
</div>
<div class="chamber2">
Chamber 2
</div>
</div>
JSFiddle
You can play around with Fiddle Link.
So I am having this issue when I am using the hover event in jQuery. I have two containers side by side. I have hover events on both of them. When hover, a div with additional info slides up into frame. When you hover off, it slides back down.
Simple right? When you hover on an element it should remove the "hide-me" class and start sliding the info up (animating). When you hover off of an element the "hide-me" class should be removed once the animation is complete.This works fine when you hover on and hover off onto an element that is not a grid-item. When you hover off of an item onto another grid-item it seems to just add the class "hide-me" to the currently hovered element. Even though the hover off event hasn't fired yet.
Anyways enough talk here is the code on JS Fiddle:
https://jsfiddle.net/joemoe_1984/2k22yLmd/2/
For testing here is what works:
Hover from below/above image then hover out from below/above image
For testing how it doesn't work:
Hover from below/above image then hover out onto other image
UPDATE
Just to clarify a bit as I had an answer that got me the effect I wanted but didn't exactly solve the issue I was having exactly. I would like to know why the animation callbacks on complete don't properly work when hovering from one image to the other. This is the part that has been bugging me the most. When you hover on an image and then out it removes the class on hover then adds the class after the animation called from the hover out event finishes. This is the expected behaviour. When I hover over an image then onto the other image you will see that instead of adding the class to the first image on hover out, it adds it to the image you are current hovering. Its as if the animation callback is calling the wrong callback function once it animates up on hover.
The on hover state should never have the class added. It should be removed at this point. The class should also not be added during any of the animation states.
Just in case links aren't ok, here is the full html, css and javascript:
HTML
<div class="grid-container">
<div class="grid-item">
<a href="#" class="grid-inner">
<div class="grid-image">
<img src="http://vignette3.wikia.nocookie.net/metroid/images/8/86/Samus_artwork_11.jpg/revision/latest?cb=20100516174330" alt="">
</div>
<div class="grid-info hide-me">
<div class="middle-align">
<h4 class="grid-title">Some title</h4>
<div class="grid-details">
This is some info about this item
</div>
</div>
</div>
</a>
</div>
<div class="grid-item">
<a href="#" class="grid-inner">
<div class="grid-image">
<img src="http://vignette3.wikia.nocookie.net/metroid/images/8/86/Samus_artwork_11.jpg/revision/latest?cb=20100516174330" alt="">
</div>
<div class="grid-info hide-me">
<div class="middle-align">
<h4 class="grid-title">Some title</h4>
<div class="grid-details">
This is some info about this item
</div>
</div>
</div>
</a>
</div>
</div>
CSS
.grid-item {
width: 25%;
float: left;
overflow: hidden;
}
.grid-item img {
max-width: 100%;
height: auto;
}
.grid-inner {
position: relative;
display: block;
}
.grid-info {
position: absolute;
background: blue;
color: white;
width: 100%;
height: 100%;
}
.hide-me {
display: none;
}
.middle-align {
position: relative;
top: 50%;
-webkit-transform: translateY(-50%);
-ms-transform: translateY(-50%);
transform: translateY(-50%);
}
Javascript
$(document).ready(function() {
$('.grid-item').hover(hover_in, hover_out);
function hover_in(e) {
$info = $(e.currentTarget).find('.grid-info');
target_height = $(e.currentTarget).height();
$info.css('top', target_height).removeClass('hide-me');
$info.stop().animate({
'top': 0,
}, 500, function() {
console.log('animated up');
});
}
function hover_out(e) {
$info = $(e.currentTarget).find('.grid-info');
target_height = $(e.currentTarget).height();
$info.stop().animate({
'top': target_height,
}, 500, function() {
console.log('animated down');
$info.addClass('hide-me');
});
}
});
Try substituting using .show() after call to .stop() for .removeClass('hide-me') at hover_in
$(document).ready(function() {
$('.grid-item').hover(hover_in, hover_out);
function hover_in(e) {
$info = $(e.currentTarget).find('.grid-info');
target_height = $(e.currentTarget).height();
$info.css('top', target_height) //.removeClass('hide-me')
.stop()
.show()
.animate({
'top': 0,
}, 500, function() {
console.log('animated up');
});
}
function hover_out(e) {
$info = $(e.currentTarget).find('.grid-info');
target_height = $(e.currentTarget).height();
$info.stop().animate({
'top': target_height,
}, 500, function() {
console.log('animated down');
$info.addClass('hide-me');
});
}
});
.grid-item {
width: 25%;
float: left;
overflow: hidden;
}
.grid-item img {
max-width: 100%;
height: auto;
}
.grid-inner {
position: relative;
display: block;
}
.grid-info {
position: absolute;
background: blue;
color: white;
width: 100%;
height: 100%;
}
.hide-me {
display: none;
}
.middle-align {
position: relative;
top: 50%;
-webkit-transform: translateY(-50%);
-ms-transform: translateY(-50%);
transform: translateY(-50%);
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js">
</script>
<body>
<h1>Animation grid</h1>
<div class="grid-container">
<div class="grid-item">
<a href="#" class="grid-inner">
<div class="grid-image">
<img src="http://vignette3.wikia.nocookie.net/metroid/images/8/86/Samus_artwork_11.jpg/revision/latest?cb=20100516174330" alt="">
</div>
<div class="grid-info hide-me">
<div class="middle-align">
<h4 class="grid-title">Some title</h4>
<div class="grid-details">
This is some info about this item
</div>
</div>
</div>
</a>
</div>
<div class="grid-item">
<a href="#" class="grid-inner">
<div class="grid-image">
<img src="http://vignette3.wikia.nocookie.net/metroid/images/8/86/Samus_artwork_11.jpg/revision/latest?cb=20100516174330" alt="">
</div>
<div class="grid-info hide-me">
<div class="middle-align">
<h4 class="grid-title">Some title</h4>
<div class="grid-details">
This is some info about this item
</div>
</div>
</div>
</a>
</div>
</div>
</body>
jsfiddle https://jsfiddle.net/2k22yLmd/3/
Ok. So I figured it out. It turned out to be a scope issue. The problem stemmed from using e.currentTarget (or this) within the hover event scope. I stored that instance into a variable and then later used it in the callback of the animation sequence.
It appears that the current target changes from when the animation callback uses it giving me the unexpected results. For the animation callbacks I should have used the instance (this) within the scope of the animation callback function like so:
$info.stop().animate({
'top': target_height,
}, 500, function() {
console.log('animated down');
$(this).addClass('hide-me'); // this refers to the current animated object. This is the correct one.
$info.addClass('wrong-one'); // $info refers to the current hover event target which is the on hover item when it should be the hover off item. This is incorrect
});
You can test it out and see that going from one image to the next will now add the class hide-me to the correct one and add the class wrong-one to the currently hovered item which is not the expected behaviour I was looking for.
Thanks to everyone for pitching in on the answers and providing alternative solutions but this was real issue for me.
The problem:
I have a form with a button underneath it to submit (post) from data with jQuery ajax(). I want for the button to be replaced with a spinner (animated png) for the duration of server ajax call. But such a trivial task is impossible in css to do right.
What i have tried:
I have placed button and image inside a bootstrap row. Ox ajax call I have set button display to none and img display to block. But because this two are not of the same size makes the whole page flicker, breaks the positioning of other elements and so on.
Another idea was to try to place both elements on top of each other with absolute positioning. But, stupid as css is I cannot center it on the middle of the row.
Is there a way to position both elements on top of each other so I can control their visibility?
Please bear in mind that I cannot used absolute position in pixel, because this is a web page and I do not not how wide the browser will be, image can change in the future, text in the button can change in the future, all this things affect absolute size.
If there is another solution to my problem which would prevent the page from jumping up and down it would also be great.
EDIT
Link to one of fiddle experiments:
https://jsfiddle.net/ofb2qdt8/
.button {
position: relative;
margin: auto;
height: 50px;
width: 30px;
background: blue;
z-index: 1;
display: block;
}
.spinner {
position: relative;
margin: auto;
height: 30px;
width: 50px;
background:red;
z-index: 2;
}
This renders second element underneath on screen. Not on different z layer.
Experiment 2:
https://jsfiddle.net/ofb2qdt8/
.button {
position: absolute;
margin: auto;
height: 50px;
width: 30px;
background: blue;
z-index: 1;
display: block;
}
.spinner {
position: absolute;
margin: auto;
height: 30px;
width: 50px;
background:red;
z-index: 2;
}
This does not center both elements, and they are pushed to the top of the containing div. The element with less height should be centered.
Check this working demo: https://jsfiddle.net/ofb2qdt8/3/
Add in a few lines of jquery and update your css.
Position your loading div according to button div's position, width, height using jquery.
*Click the button to see loading div, and try to play the margin of the button to any pixel.
###JQUERY
$(document).ready(function () {
$('.c2').each(function () {
$(this).css({
'width': $(this).siblings('.c1').outerWidth(),
'height': $(this).siblings('.c1').outerHeight(),
'top': $(this).siblings('.c1').offset().top,
'left': $(this).siblings('.c1').offset().left
});
});
$('.c2').on('click', function () {
$(this).hide(0);
});
});
###CSS
.c1 {
margin: 100px auto;
width: 100px;
text-align: center;
padding: 5px 10px;
background: blue;
z-index: 1;
}
.c2 {
position: fixed;
text-align: center;
background: red;
z-index: 2;
cursor: pointer;
}
Rough, ready and untested:
HTML
<div>
<input type='submit' />
<img src="spinneyIMage.gif" />
</div>
CSS
div{ text-align: center; }
div img{ display: none; }
jQuery
$('submit').click(function(e){
e.preventDefault();
$(this).hide().next().show();
});
After the Ajax call completes reverse the above jQuery.
As I haven't been able to find a working solution I have reverted to my first idea which I discarded at first. Albeit with a little twist.
HTML
<div class="row>
<div id="container-button" class="col-xs-12>
<button id="button" onclick="button_OnClick(e)">submit form via ajax</button>
<img src="img/spinner.png" sytle="display: none" />
</div>
</div>
JS
function btnContact_OnClick() {
// show the soinner and hide the button
showSpinner();
$.ajax(
{
type: 'POST',
url: "someurl.com/target",
data: $("#form").serialize(),
dataType: "json",
complete: function() { hideSpinner();},
success: onAjaxSuccess,
error : onAjaxError
});
}
function hideSpinner() {
$("#spinner").hide();
$("#button").show();
// make container height non-fixed and content adjustable again
$("#container-button").height('auto');
}
function showSpinner() {
// THis is the trick !!!
// Make the container fixed height as it was before displaying spinner, so it does not change with content (spinner is not the same height as button
$("#container-button").height($("#container-button").height());
$("#button").hide();
$("#spinner").show();
}
This is not the perfect solution but the best I could make.
Drawbacks:
it is not clean, you have to use javasript to fix what is css layout
problem
it still causes a little flicker
the height of container while displaying spinner is dependant on button, this may cause clipping if spinner is too big