I was assigned to do a photo gallery.
A big picture (1000x1000) in the middle, three little thumbnails picture(200x200) below it.
I was given this useful function
getBigImg(thumbnail); // Returns big image
We assume the CSS is already given for us and we do not need to worry.
<div class="big image">
<img src="big picture"/>
</div>
<div class = "thumbnails">
<div id="placement1> img src thumbnail 1 </div>
<div id="placement2> img src thumbnail 2 </div>
<div id="placement3> img src thumbnail 3 </div>
</div>
What I did is simple create 3 copies of the .HTML and do infront of each of the thumbnails. Whenever the user click on the image it will redirects to the .html where the big image is big image of the thumbnail.
I was told I can save all this hassle by using JQuery. What are they referring to?
you can do something like this example:
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js"></script>
<script>
$(document).ready(function() {
$(".galImg").click(function() {
var image = $(this).attr("rel");
$('#feature').fadeOut('slow');
$('#feature').html('<img src="' + image + '"/>');
$('#feature').fadeIn('slow');
});
});
</script>
use this HTML: little bug fixes
<div class="big image">
<img class="bigImage" src="big picture"/>
</div>
<div class="thumbnails">
<div id="placement1" > <img src="thumbnail1" /> </div>
<div id="placement2" > <img src="thumbnail2" /> </div>
<div id="placement3" > <img src="thumbnail3" /> </div>
</div>
and add this to your HTML:
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js"></script>
<script type="text/javascript">
$(function(){
$(document).on('click', '.thumbnails > div', function(){
var img = $(this).find('img').attr('src');
$('.bigImage').attr('src', img);
});
});
</script>
Related
Here my script :
function changeImage(event){
event = event || window.event;
var targetElement = event.target || event.srcElement;
if (targetElement.tagName == "IMG"){
document.getElementByClass("img-big-wrap").src = targetElement.getAttribute("src");
document.getElementById("mainimageLink").href = 'link'+targetElement.getAttribute("data-link")+'.html';
}
}
Inspired of this Answer : Javascript Gallery - Main Image href change
My HTML :
<div class="gallery-wrap">
<div class="img-big-wrap">
<a id="mainimagelink" href="<?php echo $data[0][gallery][0][photo];?>">
<img class="img-big-wrap" src="<?php echo $data[0][gallery][0][photo];?>" alt="">
</div>
<div class="img-small-wrap" onclick="changeImage(event)">
<div class="item-gallery"> <img src="<?php echo $data[0][gallery][1][thumb];?>" data-link="1"> </div>
<div class="item-gallery"> <img src="<?php echo $data[0][gallery][2][thumb];?>" data-link="2"> </div>
<div class="item-gallery"> <img src="<?php echo $data[0][gallery][3][thumb];?>" data-link="3"> </div>
<div class="item-gallery"> <img src="<?php echo $data[0][gallery][4][thumb];?>" data-link="4"> </div>
</div>
</div>
The code is actualy just open me the link of the main image only
I want to change the main image with the thumbnails when I click On, I dont know if what i'm doing is the good solution
Working Plunk: http://plnkr.co/edit/pjpHBUD4yPihqr7lJKAD?p=preview
<div class="gallery-wrap">
<div>
<a id="mainimagelink" href="https://blog.conservation.org/wp-content/uploads/2014/06/ci_19290600_cropped.jpg">
<img class="img-big-wrap" src="https://blog.conservation.org/wp-content/uploads/2014/06/ci_19290600_cropped.jpg?>" alt="">
</a>
<hr/>
</div>
<div class="img-small-wrap" ">
<div class="item-gallery " onclick="changeImage(event) "> <img src="https://s5.favim.com/610/52/Favim.com-winter-nature-small-canon-eos-7d-474348.jpg " data-link="1 "> </div>
<div class="item-gallery " onclick="changeImage(event) "> <img src="https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcTfAMUZQLGObfUBSLgnPj5b5C7Ww2DNMtKbwkuTbglK-p1La17BnA " data-link="2 "> </div>
</div>
</div>
A couple of things you've missed.
The HTML DOM was not well constructed. The tag with id mainimagelink was left unclosed, leading to opening of the main image everytime you clicked on any image.
Not sure of your use case but I believe you were trying to create a thumbnail gallery with a preview. Added Image URLs and CSS to simulate the API response.
'img-big-wrap' class was used for the image container and the actual Image itself, which would lead to errors when you try to locate your element with js.
document.getElementByClass is not the right name for the method. I believe you were going for 'document.getElementsByClassName' which returns an array as multiple elements can have the same className.
Refer to querySelector (most useful of them all):
https://www.w3schools.com/jsref/met_document_queryselector.asp
All the best!
First of all, you have used the same class more than once and tried to access it img-big-wrap.
There is also no accessor called getElementByClass instead use
getElementsByClassName which is an array since you can have multiple divs with the same class.
Typo here "mainimageLink" which you called your div with id="mainimagelink", case matters.
I have moved onclick into JS using addEventListener which saves me passing parameters from the div.
Add an id into your thumbnail parent div myImgDiv and used it to hook an Event Listener to it.
Here is what the code looks like (Not many changes were made):
let smallImgDiv = document.getElementById('myImgDiv');
smallImgDiv.addEventListener('click', (e) => {
let targetElement = e.target || e.srcElement;
let tagName = targetElement.tagName;
if(tagName === "IMG") {
document.getElementById('bigImage').src = targetElement.getAttribute("src");
document.getElementById("mainimagelink").href = 'link' + targetElement.getAttribute("data-link") + '.html';
}
});
.img-small-wrap img{
width: 150px;
height: 150px;
}
.img-big-wrap {
height: 200px;
}
<div class="gallery-wrap">
<div class="img-big-wrap">
<a id="mainimagelink" href="#">
<img id="bigImage" class="img-big-wrap" src="http://via.placeholder.com/300.png" alt="">
</a>
</div>
<div id="myImgDiv" class="img-small-wrap">
<div class="item-gallery"> <img src="https://getuikit.com/v2/docs/images/placeholder_200x100.svg" data-link="1"> </div>
<div class="item-gallery"> <img src="https://cdn.dribbble.com/users/312581/screenshots/1676038/female-placeholder_1x.png" data-link="2"> </div>
<div class="item-gallery"> <img src="https://d30y9cdsu7xlg0.cloudfront.net/png/1134418-200.png" data-link="3"> </div>
<div class="item-gallery"> <img src="https://source.sierrawireless.com/~/media/developer%20zone/icons/sw_dz_icons_placeholder.ashx?h=240&la=en&w=240" data-link="4"> </div>
</div>
There is an Image coming from server:
<div class="storyDetail">
<img src="img/photo.jpg" height="180" width="300" style="float:left;">
</div>
Now I want to change this image like this through javascript when page loads:
<div class="storyDetail">
<div class="insta-gallery">
<a href="img/photo.jpg" class="tt-lightbox">
<img src="img/photo.jpg" height="180" width="300" style="float:left;"/>
</a>
</div>
</div>
I have tried through Javascript but got nothing because I am not fimilier with Javascript!
I just got the answer with the help of MR.#sinisake.
<!-- Getting Image 'Src' -->
var storyDetailImageSrc= $('.storyDetail').find('img').attr('src');
<!-- Wrapping image with required div(s) -->
$('.storyDetail img').wrap('<a href="'+storyDetailImageSrc+'" class="tt-lightbox">');
$('.tt-lightbox').wrap('<div class="insta-gallery">');
To change text:
Add an id to your div:
<div class="storyDetail" id="storyDetail01">
Define a function:
function changeText {
document.getElementById("storyDetail01").innerHTML =
' <div class="insta-gallery">
<a href="img/photo.jpg" class="tt-lightbox">
<img src="img/photo.jpg" height="180" width="300" style="float:left;"/>
</a>
</div>';
return false; }
Place that function wherever you execute Javascript when loading your page.
If not sure about what you do to that purpose, but the easiest -and dirtiest-, is to add a scirpt at the bottom of the html
<body> -> that's your html page body
--- code code...
<script type="text/javascript">
changeText();
</script>
</body>
I am a total noob, so please go easy.
I am trying to replace one image with a second image while hovering on a different element. My problem is that only the first image is being replaced by the link images. I've give each image an ID, I just am not sure how to apply it.
Thank you in advance for any help you can provide!
Here is what I have so far:
Script:
<script>
function changeimage(towhat,url){
if (document.images){
document.images.targetimage.src=towhat.src
gotolink=url
}
}
function warp(){
window.location=gotolink
}
</script>
<script language="JavaScript1.1">
var myimages=new Array()
var gotolink="#"
function preloadimages(){
for (i=0;i<preloadimages.arguments.length;i++){
myimages[i]=new Image()
myimages[i].src=preloadimages.arguments[i]
}
}
preloadimages("http://www.dxmgp.com/group/images/color_si.jpg", "http://www.dxmgp.com/group/images/bw_si.jpg","http://www.dxmgp.com/group/images/color_dxm.jpg", "http://www.dxmgp.com/group/images/bw_dxm.jpg","http://www.dxmgp.com/group/images/color_tsg.jpg", "http://www.dxmgp.com/group/images/bw_tsg.jpg","http://www.dxmgp.com/group/images/color_image.jpg", "http://www.dxmgp.com/group/images/bw_image.jpg")
</script>
HTML:
<div id="wrap">
<div id="upper">
<div class="u-top">
<img src="http://www.dxmgp.com/group/images/bw_si.jpg" name="targetimage" id="si" border="0" />
<img class="picright" src="http://www.dxmgp.com/group/images/bw_dxm.jpg" name="targetimage" id="dxm" border="0" />
</div>
<div class="u-mid">
<img src="http://www.dxmgp.com/group/images/bw_owners.png" />
</div>
<div class="u-low">
<img class="picleft" src="http://www.dxmgp.com/group/images/bw_tsg.jpg" id="tsg" />
<img class="dxmlogo" src="http://www.dxmgp.com/group/images/logo_dxm.png" />
<img class="picright" src="http://www.dxmgp.com/group/images/bw_image.jpg" id="img" />
</div>
</div>
<div id="lower">
<div class="dots"><img src="http://www.dxmgp.com/group/images/topdots.png"></div>
<div class="logos">
<a href="http://www.thescoutguide.com">
<img class="picll" src="http://www.dxmgp.com/group/images/logo_tsg.png"></a>
<img class="picmid" src="http://www.dxmgp.com/group/images/logo_si.png">
<a href="http://www.imagebydxm.com">
<img class="piclr" src="http://www.dxmgp.com/group/images/logo_image.png"></a>
</div>
<div class="dots"><img src="http://www.dxmgp.com/group/images/lowdots.png"></div>
</div>
</div>
How about something like this? Consider you have a div containing image1.png. When you mouse over a hyperlink, you want to replace image1.png with image2.png. Then, when you move your mouse away from the hyperlink, image2.png will once again be replaced with image1.png:
This is your div containing the image:
<div id="image">
<img src="image1.png" />
</div>
This is the hyperlink:
Mouse over to change image
Here are the JavaScript functions that will replace the inner HTML of the div with different images:
<script type="text/javascript">
function mouseOver() {
document.getElementById("image").innerHTML = '<img src="image2.png" />';
}
function mouseOut() {
document.getElementById("image").innerHTML = '<img src="image1.png" />';
}
</script>
Let me know if this is what you are looking for.
I'm currently developping a html-page for ipad with a css3-transition slider for various contents.
The problem i encounter is, that images on the next page, which aren't rendered yet, will be rendered while sliding them to the content area (though they are preloaded).
Is there any way to make the Browser render them, without displaying them at initial page request, to prevent the stuttered sliding effect on images?
/EDIT:
Slider I use: slider
structure is like:
<body>
<!-- wrapper -->
<div>
<!-- head -->
<div class="head"></div>
<!-- content area -->
<div class="content">
<div class="container">
<div class="pagination"></div>
<div class="slide-wrapper">
<div class="slide">
<!-- content with images here -->
</div>
<div class="slide"></div>
<div class="slide"></div>
<div class="slide"></div>
<div class="slide"></div>
</div>
</div>
</div>
<!-- foot -->
<div class="foot"></div>
</div>
</body>
Image-Preloading:
function preload() {
$('img').each(function(){
$('<img/>')[0].src = $(this).attr('src');
});
}
This will force browser to preload all images
$('img').each(function(){
var image = new Image();
image.src = $(this).attr('src')
});
A general technique is to set them as visibility: hidden (inline style to ensure it is applied even before any external CSS is downloaded) - And setting it to visibility: visible on image.onload handler.
<img src="..." style="visibility: hidden" onload="this.style.visibility = 'visible';">
Edit
$('img').each(function(){
$(this).css('visibility', 'hidden');
$('<img/>')[0].src = $(this).attr('src');
$(this).load(function() {
$(this).css('visibility', 'visible');
});
});
Okay, so I am in the process of recreating this feature:
http://www.w3.org/html/logo/#the-technology
I current have it so when you click on a link, it will add a class to the image that relates to that link (href="#one" on the <a> and then id="#one" on the <img>), however it is currently not going through each <a> tag and only one. And also it is not removing the class I requested.
Code follows:
JS
$(document).ready(function() {
var container = '#portfolio #text_container';
var img_container = '#portfolio #image_container';
$(container).children('a').bind('click', function() {
var this_attr = $(this).attr('href');
var this_img = $(img_container).find('img').attr('id');
if(this_attr == this_img) {
//$(img_container).find('img').hasClass('current').removeClass('current');
// ^^^ This line isn't working, any ideas? :/
$(img_container + ' img[id*="' + this_attr + '"]').addClass('current');
}
else {
alert(this_img + ' this img');
alert(this_attr + ' this attr');
}
});
});
And the HTML is as follows
<div id="portfolio">
<div id="image_container">
<img src="http://static.jquery.com/files/rocker/images/logo_jquery_215x53.gif" alt="" class="current" id="#one" />
<img src="http://static.jquery.com/files/rocker/images/btn_downloadLarge.gif" alt="" id="#two" />
</div>
<div id="text_container">
Item 1
Item 2
<p id="#one" class="current">A bunch of text!</p>
<p id="#two">The second bunch of text!</p>
</div>
</div>
Please let me know if you need any more information :)
rcravens fixed this with the following code..
JS
$(document).ready(function() {
$('#text_container a').click(function(evt) {
evt.preventDefault();
$('.current').removeClass('current');
var href = $(this).attr('href');
$("." + href).addClass('current');
});
And the HTML..
<div id="portfolio">
<div id="image_container">
<img src="http://static.jquery.com/files/rocker/images/logo_jquery_215x53.gif" alt="" class="one current" />
<img src="http://static.jquery.com/files/rocker/images/btn_downloadLarge.gif" alt="" class="two" />
</div>
<div id="text_container">
Item 1
Item 2
<p class="one current">A bunch of text!</p>
<p class="two">The second bunch of text!</p>
</div>
</div>
My interpretation of what you are trying to do is here:
http://jsfiddle.net/rcravens/wMhEC/
The code is changed a bit. You shouldn't have multiple elements with the same id.
Bob
The reason this isn't working:
if(this_attr == this_img)
is because this_attr is a URL and this_img is an ID attribute value.