Change image to another after a certain time by javascript - javascript

I have a problem with Javascript code
Problem Statement: I have a button and an image on page. When I click the button the image is replaced with another for a certain time (e.g. 3 minutes) and after time ends, image is replaced with initial image.
Note: I would like to achieve this without page refresh.
Can anyone help please?

$(document).on("click", "#my_btn", function() { // This is how event binding should be done.
// Change source of image here
setTimeout(function(){
// Reset source of image here
}, 180000)
});
For reference - http://api.jquery.com/on/
http://www.w3schools.com/jsref/met_win_settimeout.asp

Wait people I know a lot of things about PHP , CSS and SQL and I've already created a website from the beginning but about Javascript I don't know a lot just the main definitions

Related

javascript function reloads page upon completion

I have a simple javascript program that runs onclick of an image.
However, whenever I clicked the image, the page reloaded.
After a lot of debugging I found that the page doesn't reload until right as the script completes.
There are several setTimeouts in the code, but I noticed the page was reloading instantly. I even changed these timeouts to 15000 milliseconds, but it still reloads immediately.
I am using jquery, if it makes any difference.
I also want a different result from the program every time you click it, so that each time you click it a different script runs and a some text changes in a specific order. I did this by changing the onclick attribute of the images in each script to the name of the next script, so that script one would switch onclick to script two, and so on. I set a timeout on these switches so that one click doesn't race through every single script. script two isn't running, so that much works.
my code:
function getSounds() {
console.log("script. initiated");
$("#soundwebGetSoundDirections").html("Now, Wait until the file is done downloading and click below again.");
console.log("new message");
$("#soundwebGetSoundA").attr('href',"");
console.log("href eliminated");
setTimeout($("#soundwebGetSoundImg").attr('onclick','findFile()'),2000);
console.log("onclick to findFile()");
}
function findFile(){
console.log("FINDFILE")
$("#soundwebGetSoundDirections").html("Find the file(it's probably in your downloads), copy the path of the file (usually at the top of the file explorer) and paste in it the box below. Then, make sure there is a '/' at the end of the path and type 'Linkiness.txt' (case sensitive, without quotes) at the end. Once you have all that stuff typed, click the icon again.");
console.log("FIND IT, DARN IT!!");
$("#soundwebGetSoundPathInput").css("opacity",1);
console.log("diving into reader");
setTimeout($("#soundwebGetSoundImg").attr('onclick','readFile()'),1000);
}
function readFile(){
console.log("loading...");
$("#soundwebGetSoundDirections").html("loading...");
if(document.getElementById("soundwebGetSoundPathInput").value.length == 0){
setTimeout($("#soundwebGetSoundDirections").html("Please fill in Path!"),1000);
setTimeout(findFile(),2000);
}
}
and the HTML that's linked to,
<a id = "soundwebGetSoundA" href = "https://docs.google.com/feeds/download/documents/export/Export?id=1ynhHZihlL241FNZEar6ibzEdhHcWJ1qXKaxMUKM-DpE&exportFormat=txt">
<img onclick = "getSounds();" class = "soundwebImgResize" src = "https://cdn3.iconfinder.com/data/icons/glypho-music-and-sound/64/music-note-sound-circle-512.png" id = "soundwebGetSoundImg"/>
</a>
Thanks for any help,
Lucas N.
If you don't want clicking the image to cause the anchor tag to load the href, then move the image tag outside of the anchor tag.
You aren't using setTimeout correctly. You should be passing in a function not a statement. So, for example, instead of
setTimeout($("#soundwebGetSoundDirections").html("Please fill in Path!"),1000);
setTimeout(findFile(),2000);
you should use
setTimeout(function () { $("#soundwebGetSoundDirections").html("Please fill in Path!") },1000);
setTimeout(findFile,2000);
I think the same goes for setting the onclick attribute but I've never tried dynamically changing an onclick attribute like that.
Since you're already using jQuery you could try using .on('click'... and .off('click'... if your current setup isn't working.

How to initialise a lightbox

I tried to use a page on
http://dimsemenov.com/plugins/magnific-popup/
to start with the project. So I took the code an assumed to find out, what I need from the larger page for me. Though, cutting anything away made id not function at all.
What resources are needed (css, js, links)?
I need on several pages a light box and want to load the first picture as soon as the page loads. Tried to build a test page on
http://grillparzerhof.at/magnificversuch/index.html
though there is a light box not at all. It is a very beginners question; please help.
~ Karl
This is the code on that page in Public Methods you should use to fire the lightbox on page load, this instruction is near the bottom of the Documentation page:
// Open popup immediately. If popup is already opened - it'll just overwite the content (but old options will be kept).
// - first parameter: options object
// - second parameter (optional): index of item to open
$.magnificPopup.open({
items: {
src: 'someimage.jpg'
},
type: 'image'
// You may add options here, they're exactly the same as for $.fn.magnificPopup call
// Note that some settings that rely on click event (like disableOn or midClick) will not work here
}, 0);

How to know StartChild when using roundabout.js

Hi I am implementing roundabout with 5 images using roundabout.js that is shown here
http://fredhq.com/projects/roundabout/demos/standard
So I want to know current front image so that i can implement some trigger whenever user click on it. I don't want to enable trigger when user clicks on the images shown behind the front image.
Trigger is launched only for front images and natural behavior happens for rest of the images at back.
I tried using roundabout_startChildren() function in my Html file but not able to know how to exactly use this function.
NOTE:- i have never used this plugin so please instead of down voting the answer correct me if you think i have misunderstood your problem
here is the DEMO
switch the click off for all movable elements as the page loads and on it when the clicked element hasClass roundabout-in-focus and then animateToNextChild
$('ul').roundabout()
$('ul li').off('click');
$('.roundabout-moveable-item').click(function(e){
if($(this).hasClass('roundabout-in-focus'))
{
$(this).on('click')
$('ul').roundabout("animateToNextChild")
}
})
EDIT as per the requirement mentioned in comment
DEMO
$('ul').roundabout()
$('.roundabout-moveable-item').click(function(e){
if($(this).hasClass('roundabout-in-focus'))
{
window.open('http://www.google.com')
//use --window.location="http://www.google.com"-- to open in same window
}
})

Check if the webpage has been modified

I am working on chrome extension for facebook. If you use facebook, you know that when you scroll down to the bottom of the news feed/timeline/profile it shows more posts. The extension actually adds a button beside the "like" button. So I need to check if there are more posts to add that button to.
Right now to check if the page has been modified, I use setInterval(function(){},2000).
I want to run a function when the user clicks the button. But this function doesn't work if I put it outside (or even inside) setInterval() – The Koder just now edit
How can I check if the webpage has been modified WITHOUT using a loop?
Example:
$(document).ready(function(){
window.setInterval(function(){
$(".UIActionLinks").find(".dot").css('display','none');
$(".UIActionLinks").find(".taheles_link").css('display','none');
$(".miniActionList").find(".dot").css('display','none');
$(".miniActionList").find(".taheles_link").css('display','none');
//only this function doesn't work:
$(".taheles_link").click(function(){
$(".taheles_default_message").hide();
$(".taheles_saving_message").show();
});
//end
$(".like_link").after('<span class="dot"> · </span><button class="taheles_link stat_elem as_link" title="תגיד תכל´ס" type="submit" name="taheles" onclick="apply_taheles()" data-ft="{"tn":">","type":22}"><span class="taheles_default_message">תכל´ס</span><span class="taheles_saving_message">לא תכלס</span></button>');
$(".taheles_saving_message").hide();
}, 2000);
});
In the future, this extension will use AJAX, so setInterval() can make even more problems for me.
If I understand correctly you want to get a notification when the page's DOM changes. And you want to do this without using the setInterval() function.
As your problem lies within the attaching event handlers to elements that are created after the page has loaded, you might be interested in checking out the jquery.live event attachment technique. I think it will solve your issue.
In general you want the page to throw a mutation event. There is a mutation event spec that might be what you're looking for. Here are some links that might be useful.
http://tobiasz123.wordpress.com/2009/01/19/utilizing-mutation-events-for-automatic-and-persistent-event-attaching/
Detect element content changes with jQuery
$(document).ready(function(){
setInterval('fun()',5000);
fun();
});
function fun()
{
alert(11)
}

A few jQuery questions

First of all, here is the site I am working on.
I am trying to get a modal window to pop-up when elements in the Flash are clicked on. Which at this point I have about 90% working when you click on the warrior image. Below is a list of issues I am still trying to solve that I hope you can help me with...
The modal background doesn't fill up
the whole page like it should.
I cannot get the close button to work
I need to set the vidname variable in
both the Flash and Java to load in a
dynamic HTML file. Depending on which
image is clicked on. My naming
convention will probably be something
like vid-1.html, vid-2.html, etc.
If you need to look at the .js file you can view it at /cmsjs/jquery.ha.js
Below is the ActionScript I currently have...
var vidname = "modal.html";
peeps.vid1.onRelease = function() {
getURL('javascript:loadVid(\'' + vidname + '\');');
};
Well I have one for you.
Your current close code is
$('#modalBG, #modalClose').click(function(){
closeModal();
});
If you click the background after a video loads you'll see that the modal does close. The reason your close button does not work is because #modalClose does not exist in the DOM when you are binding to the click function.
You need to either rebind the modalClose element when you modify the DOM or use live. If you use live you just need to change your click code to this:
$('#modalBG, #modalClose').live("click", (function(){
closeModal();
});

Categories