I have 2 html pages with an image on each one. I need to be able to click the image on the 2nd page and have it redirect me to the 1st page - with the first image.src changed to that of the second.
What is the best/correct way to do this? I have been trying to do it by storing the src in sessionStorage but it does't seem to be working. Here is the code for setItem:
<script type="text/javascript">
$('.images').on('click', '.groupOne', function(){
var image = $(this).find("img"); // selects images inside group
var imageSrc = img.first().attr("src"); // get src of first image
sessionStorage.setItem("choice", imageSrc);
window.location.href = 'firstPage.html';
});
</script>
And then to change the first image I need to use getItem:
<script type="text/javascript">
$(document).ready(function() {
var imgTwo = sessionStorage.getItem("choice");
var imgOne = document.getElementById("pageOneImage");
imgOne.src = imgTwo; //sets src of img1 to src of img2
});
</script>
But this doesn't seem to be working. Is there an easier way to do this using more jQuery? Thank you!
Maybe not the best solution, but how about adding the src as a param to the query string?
On the second page:
window.location.href = 'firstPage.html?src=' + src;
And the first page:
var reg = new RegExp("(^|&)src=([^&]*)(&|$)", "i");
var r = window.location.search.substr(1).match(reg);
var src = r != null ? unescape(r[2]) : null;
Now you got the src, if redirecting from the second page.
Related
javaScript Code:
function Productadd() {
var imageid = document.getElementById("pic1").src;
var textid = document.getElementById("text1").textContent;
localStorage.setItem("imagesrc", imageid);
localStorage.setItem("text", textid);
window.location.href = "E:/GOO%20WEB/medic-care/index3.html";
imageid = imageid.toString();
textid = textid.toString();
document.getElementById("image2").src = localStorage.getItem("imagesrc");
document.getElementById("text2").textContent = localStorage.getItem("textid");
}
You can not change an image on the next page that is loaded from the current page. The code only executes on the current page. So what you want to do is not possible.
You would need to have code running on the next page and trigger it somehow with localstorage, cookie, or a querystring parameter.
I am trying to insert image values into the html to replace the src according to the name so if the name for the templateName = Javascript I can make the src value = something like say (http://www.w3devcampus.com/wp-content/uploads/logoAndOther/logo_JavaScript.png) and do that for other categories as well using an if/else statement in javascript.
my script look like this but it has a few errors with the syntax
var imageChoosernator = function () {
if (#templateName == "Javascript")
{
img = <img src="htp://www.w3devcampus.com/wp-content/uploads/logoAndOther/logo_JavaScript.png">;
}
` }
Can someone guide me toward the proper solution?
# in #templateName is wrong. Know your allowed variable characters.
img = <img the <img is an unstarted String. Know how to enclose values into String.
` <<< you cannot have such character floating around your code (hopefully just an edit typo).
Since you didn't showed most of your code, a fix would be something like:
var img = "";
var templateName = "Javascript";
function imageChoosernator () {
if (templateName === "Javascript") { // remove unallowed #
img = '<img src="js.png">'; // enclose into String
} else {
img = '<img src="someting.png">';
}
// Finally append img to element #imgContainer
document.querySelector("#imgContainer").insertAdjacentHTML("beforeend", img );
}
imageChoosernator(); // Do the magic
You can use jQuery .prepend() method to replace the image src on loading the query into the page.
If in html you have given the id name as 'JavaScript' like-
div id="JavaScript"><img id="imgNew1" src="oldImg1.png" />
div id="templateName2"><img id="imgNew2" src="oldImg2.png" />
To change the image source following can be used-
$('#templateName1').prepend('<img id="imgNew" src="newImg1.png" />')
$('#templateName2').prepend('<img id="imgNew" src="newImg2.png" />')
You need to read the documentation here
To automatize the src change while creating intances of the same will go like-
<html>
<head>
<script type="text/javascript">
var slideimages = new Array() // create new array to preload images
slideimages[0] = new Image() // create new instance of image object
slideimages[0].src = "firstImg.png" // set image object src property to an image's src, preloading that image in the process
slideimages[1] = new Image()
slideimages[1].src = "secondcarImg.png"
slideimages[2] = new Image()
slideimages[2].src = "thirdImg.png"
</script>
</head>
<body>
<img src="firstImg.img" id="slide" width=100 height=56 />
<script type="text/javascript">
//variable that will increment through the images
var step = 0
var whichimage = 0
function slideit(){
//if browser does not support the image object, exit.
if (!document.images)
return
document.getElementById('slide').src = slideimages[step].src
whichimage = step
if (step<2)
step++
else
step=0
}
</script>
</body>
</html>
I have an XHR response that returns images. I have my function in order to show the images. I am combining JQuery and JS in the same code snippet. So far all is working well:
function resultat(o){
var leselements = o.query.results.bossresponse.images.results.result;
var output = '';
var no_items = leselements.length;
for(var i=0;i<no_items;i++){
var lien = leselements[i].url;
//place image urls in img src
output += "<img src='" + lien + "' class='imgs'>";
}
// Place images in div tag
document.getElementById('results').innerHTML = output;}
But I would like to allow users to click an image and then populate an input field ('#imageurl') with the clicked image src. Here is what I tried but it does not work.
$('.imgs img').click(function(){
$('#imageurl').val() = "";
var source = $(this).attr('src');
$('#imageurl').val() = source;
});
Any help will be greatly appreciated. TIA.
Using .val() in this way will just return the current value of #imageurl.
$('#imageurl').val()
.val is a function call that works as a getter and a setter.
To set the value, try this:
$('#imageurl').val(source);
$('#imageurl').val("");
// ...
$('#imageurl').val(source);
See the documentation.
Try this:
$('img.imgs').click(function(){
var src = $(this).attr('src');
$('#imageurl').val(src);
});
If the image will be rendered after the attachment of the event handler use this:
$('img.imgs').live('click', function(){
var src = $(this).attr('src');
$('#imageurl').val(src);
});
Thank you guys for your prompt answers. I tried all of them but they did not work for me. I then asked a friend and we finally found a way to make it work. Probably not the best or professional way but it works. Here is the solution if ever anyone needs it.
function resultat(o){
var leselements = o.query.results.bossresponse.images.results.result;
var output = '';
var no_items = leselements.length;
for(var i=0;i<no_items;i++){
var link = leselements[i].url;
//Place urls in image src and pass in 'link' parameter to the getsrc function
output += "<img src='" + link + "' onclick='getsrc(\""+link+"\")'>";
}
// Place images in div tag
document.getElementById('results').innerHTML = output;
}
function getsrc (link) {
//console.log($(this));
$('#imageurl').val("");
// var source = $(this).attr('src');
//place imageurl value by passing in the link parameter.
$('#imageurl').val(link);
}
My CMS has a plugin for pulling in facebook images with stories. I cannot change it.
In the source it creates the image URL ends in s.jpg but I would like to modify it so it ends in o.jpg in order to pull in the largest photo type
This is the code:
<div class="post_picture">
<img src="http://photos-g.ak.fbcdn.net/hphotos-ak-ash3/534627_477964682254266_1412043521_s.jpg" alt="">
</div>
Is this possible? I would image you copy the source URL, modify the end from s.jpg to o.jpg and the replace the old URL w/ the new one.
EDIT:
Thanks everyone for your replies & solutions, below is another solution I found...
$('.div1>img').attr('src',function(i,e){
return e.replace("s.jpg","o.jpg");
})
ex - http://jsfiddle.net/designaroni/4Da2a/
function imgSrcOverwrite() {
var imgs = document.getElementsByTagName('img'),
loopImg, fbImgs = [];
// Loop through each IMG, check if it's a facebook image &
// then replace _s.jpg with _o.jpg in the src attribute
for ( var x=0; x<imgs.length; x++ ) {
loopImg = imgs[x];
if ( loopImg.src.indexOf('photos-g.ak.fbcdn.net') > -1 ) {
loopImg.src = loopImg.src.replace('_s.jpg', '_o.jpg');
fbImgs.push(loopImg);
}
}
imgs = loopImg = null;
// return array of fb images so you can do more stuff with them
return fbImgs;
}
imgSrcOverwrite();
If you're using jQuery I'd replace the second line with
var imgs = $('.post_picture img'),
http://jsfiddle.net/CoryDanielson/jmzk2/
Here's a quick example of how it may be possible.
// get image dom element
var img = document.getElementById('imageId');
// update src
img.src = img.src.replace(/s.jpg/, 'o.jpg');
If you are using jquery,
Try to access the img tag by this -
var src = '';
$('.post_picture').find('img').each(function(){
src = $(this).attr('src').toString().replace('_s.jpg', '_o.jpg');
$(this).attr('src',src);
});
Is anyone able to determine, how to stop the jQuery caching the image that it grabs, and displaying the same image around and around again?
Basically the image is been re-uploaded every 5 seconds, as it acts as a webcam (if you check the time stamp on the bottom right of the image, you can tell if it's been updated or not)
http://colourednoise.co.uk/scripts/index.htm
Thank you
(sorry I forgot to hit paste for the code)
$(function(){
$(document).ready(function() {
var imgs = ['http://www.ramseycommunityradio.co.uk/images/webcam.jpg', 'http://www.ramseycommunityradio.co.uk/images/webcam.jpg']
$("#webcam").attr('src', imgs[1]);
var refreshId = setInterval(function() {
$("#webcam").fadeOut("slow", function() {
var $el = $(this);
$el.attr('src', $.inArray($el.attr('src'), imgs) === 0 ? imgs[1] : imgs[0]);
$el.fadeIn("slow");
});
}, 2000);
});
You could try appending a changing query string onto the URL, this should stop caching if that is indeed your problem. I've seen this done with a time stamp here: how to generate and append a random string using jquery
So each time you generate an image you do:
var qs = (new Date).getTime();
var url = 'http://www.example.com/images/myimage.jpg?' + qs;
$(el).attr('src',url);
your code:
var imgs = ['http://www.ramseycommunityradio.co.uk/images/webcam.jpg', 'http://www.ramseycommunityradio.co.uk/images/webcam.jpg']
$("#webcam").attr('src', imgs[1]);
var refreshId = setInterval(function() {
$("#webcam").fadeOut("slow", function() {
var $el = $(this);
$el.attr('src', $.inArray($el.attr('src'), imgs) === 0 ? imgs[1] : imgs[0]);
// this condition is redundant, it will ultimately give the same result always
// because imgs[0]==imgs[1]
$el.fadeIn("slow");
});
}, 2000);
as far a JQuery is concerned you are not changing the SRC attribute (JQuery knows nothing about the content of the image). Try using two different names in the server-side like webcam0.jpg and webcam1.jpg and alternating between them.
One trick is t append a random query string URL which causes the image to reload from the server. The code could be something like:
setInterval(function() {
var img = $("#img").get(0);
img.src = img.src.replace(/\?.*/, "") + "?" + Math.random();
}, 5000);