I am doing file upload async with jquery/php using the target attribute of a form. The target is my iframe named "uploads"; To manage error in the php file, I return string like "ERR_TOO_LARGE_FILE" with an echo which will be inside the iframe body.
The problem is I don't know how to detect when the iframe is ready and access its content to see if there's an error. I tried the following code but it didn't work:
$("#uploads").on("load", function() {
alert($(this).html());
});
an alert box did appear, but nothing inside. I also tried using the ready event instead but this time, nothing appears.
Would like to know a way to achieve this or an alternate solution if you have a better one.
Because you're not allowed to modify the content of an iframe, at least you're not suppose to, you can't directly access it using jquery. Use .contents() & .find() to get the html from the iframe so you can get the info you need.
So,
$("#uploads").on("load", function() {
alert($(this).contents().find('html').html());
});
should return the contents of the html in the iframe. You can swap out the 'html' for a tag id if you know the specific element you're looking for.
Related
I've looked at a lot of StackOverflow answers but can't find an answer that is working. This seems like it should be so simple.
I have a PHP single page web app. It has a nav bar that loads pages as includes. Clicking the nav bar invokes a jQuery function to load a different include and inject a class into a div. This works in the nav.
In one of the includes, I have an HTML link:
<div class="page-content">
<a class='btn-primary'>See Examples</a>
</div>
This is the jQuery I want it to execute:
$(".btn-primary").click(function() {
alert('you clicked me');
$('.page').attr('class', 'page examples');
// REPLACE THE CURRENT INCLUDE
$('.page-content').load('includes/page-examples.php');
window.scrollTo(0, 0);
});
But the link does not execute the function. Changing it to a div does not work. Clicking will not even execute the alert.
I've tried to put the link in php echo or php print, but it makes no difference. I've checked all my naming and there isn't a typo.
What is the best way to make it work?
----- EDIT -----
The jQuery is being called from a js file called from the index.php head tag, and is in the DOM ready statement. It looks like the DOM is ready before the include with the link loads. If I remove the link's js from the js file and put it in the include with the link, then the link works, but this will create a problem as other internal links are added to the site in other includes.
What is the best way to fix ?
It sounds like your javascript click binding $(".btn-primary").click(...); is executed on DOM-ready.
But at that time the .btn-primary is not yet in the DOM as it only gets inserted into the DOM after you include it (if I understood it right).
Therefore the binding never happens and after your first include gets loaded the click binding code is never executed again and therefore the .btn-primary element has no onClick event.
You need to run your javascript snippet after that .btn-primary element gets inserted in the DOM, eg. like this:
$('.page-content').load('includes/first-include.php', function(){
$(".btn-primary").click(function() {
whatever...
});
});
First step
Check if you are importing jQuery library (it seems obvious, but we
can forget to import the library sometimes or the library URL is wrong
and the browser cannot recognize it as well). And remember you need import jQuery before the function you wrote.
Second step
If you need to inject a class into some element using jQuery, the easiest way to do this is:
Instead...
$('.page').attr('class', 'page examples');
Change to...
$('.page').addClass('examples');
In this example above, you can omit the 'page' and let only 'examples', because the class ".page" is already there.
Another thing, this will only work if the element with ".page" class already exists in your HTML.
Third step:
Add a callback to .load function and see if it worked properly:
$('.page-content').load('includes/page-examples.php', function(){
alert("Nice, my content was loaded!");
// You can put this action here, so it will execute after the content is loaded
window.scrollTo(0, 0);
});
I am trying to load a specific portion of an article with using of jquery load() function when a tab is clicked. The tab is inside an article and trying to show another article within the first article from where the tab is being clicked. The jquery code I have put inside the template.php of choosen template. The main problem is that when I click nothing is comming inside the first article under the tab. I am using joomla2.5.11 version. Please give some suggestion.The jquery code what I am trying is shown below:
$(function(){
$("h3.menuheader").click(function(){
$(".active-tab").removeClass("active-tab");
$(this).addClass("active-tab");
$(".tabcontent-ul").slideUp();
$(".tabcontent").load("http://www.mpsinfoservices.com/projects/teamzstudio/web-application-development#link1",function(){
$(".tabcontent").slideToggle();
});
});
});
Unfortunately I don't think you've provided enough to diagnose this issue. But perhaps I can help with how I would diagnose.
To start with, try this instead:
// http://www.mpsinfoservices.com/projects/teamzstudio/web-application-development#link1
$(".tabcontent").load("http://www.google.co.uk",function(){
$(".tabcontent").slideToggle();
});
Then open up your developer tools and see if a call is being made to load that data.
If it is, then you need to consider that it might be loading the data and putting it in another element you can't see.
So to test, create a new container on the page near your footer, which you know will be visible with a specific #ID like <div id="testID"></div> and load into that. Once that is working, look to confirm your .tabcontent element is the one you want using something like console.log().
I'm using a simple script to reload a div
$('#mydiv').fadeOut('300').load('# #mydiv').fadeIn("300");
The problem is that the div I'm reloading has the Facebook like button inside it. After the DIV reloads, I can see it updated inside the source, but the button is hidden for some reason.
Is there any way to force the button to re-draw?
As I stated in my comment, I think the .load is misunderstood, as you stated in your question
I can see it updated inside the source, but the button is hidden for some reason
.. so with that in mind, I assume you have load functioning with the correct parameters.
You have a synchronistic problem here. Everything you use in the chain uses a timescale, and .load() for that matter is asynchronous.
So instead of just chaining everything, you have to use the callbacks in order to know when the time scale ends for a particular function.
$('#myDiv').fadeIn('300', function() {
// callback when #myDiv is faded out (display:none;)
$(this).load('url', function() {
// callback when #myDiv is loaded with new content from the given 'url'
$(this).fadeIn('300');
})
});
The facebook button won't display because it is configured normally just AFTER document.load.
If you load the div content while the document is already loaded and the Facebook javascript SDK has already initialized. It won't work.
If facebook is not required UNTIL the div loads. You may just try to load the "all.js" script inside the div.
Otherwise, if you've come to that, you'll certainly have to review the application's design.
I was wondering if this was possible to do. I know you can pull a html file and put it on your page like this, <a href='index.php?content=Contact.html'> . Is there someway to pull a webpage from a URL to your site. So instead of a link open in another tab, it would open that webpage on your current site page. If it's not possible, is there some sort of similar solution I can use.
You can use the iframe tag to display other web pages inside your own web page.
When you say:
I know you can pull a html file and put it on your page like this, <a href='index.php?content=Contact.html'>
Actually, that's not a normal feature - it's only a function of whatever index.php file is on your server, and simply displaying content referenced by a GET parameter can actually quite dangerous depending on whether you know what to protect against and how.
I guess it depends on how "embedded" in to your site you wish for it to be, but it sounds like you could use iframes.
If you want to load an external website into your site, have a look at iframes [docs].
If you want to update parts of the page with content coming from your domain and without refreshing the whole page, you can use Ajax.
Yes, it is possible. You can use AJAX to get the other file and then set the .innerHTML property of your div to the loaded content. In the simplest way, with jQuery you'll have something like this:
var data = jQuery.get("http://my.domain.com/file.html")
$('#mydiv').html(data);
you could use jquery's load() function. i would do it something like this:
$(document).ready(function () {
$('a').click(function (e) {
e.preventDefault();
$('#myDiv').load($(this).attr('href'));
}
}
I have an iframe on my main page, and this iframe uses php code mostly (src is php file).
At the bottom of this iframe I have this:
window.parent.document.getElementById("qry_str").value='hey';
And in the main (parent) file, I have this hidden input which I am trying to set from the iframe with js:
<input type="hidden" id="qry_str" name="qry_str">
Nothing happens when I try to set the value of this hidden input from inside the iframe.
(Nothing shows up in the src code that is)!
I have also tried setting the hidden inputs 'OnChange' event to an alert, but it won't alert because it isn't changed I guess!
I know it finds the element because I have tried to alert the elementId and it works, the element is found!
Thankful for any help!
If the iframe is on the same domain you want to use window.top to access the parent window.
window.top.document.getElementById("qry_str").value='hey';
View source shows the source code for the page, not a serialization of the current DOM. Use something like Firebug for that.
The onchange event won't fire because the content is being changed from a script, not from the user editing it.
Your tests show you are selecting the element, so that doesn't leave much else to go wrong except how you perform the tests to see if the code is working.