I've seen a few questions like the one I'll ask but nothing identical. I have two html files, main and today. What I want to do is load today.html via AJAX into a child div in main.html. Sometime after load, I would like to call a function that resides in main.html from today.html
Within Main I have this function:
function drawCircle (size){
alert('DRAWING');
}
This AJAX load:
$("#leftofad").ajax({
url: ":Today.html?r="+genRand(),
type: 'GET',
success: function(data) { },
error: function() { alert('Failed!'); },
});
And this div:
<div id="leftofad"></div>
In Today.html I have
<script type="text/javascript">
$(document).ready(function(){
drawCircle (100);
});
</script>
The load is going well but Today.html doesnt seem to recognize the drawCircle function. I've tried several precursors including this., window., and parent..
I understand that I can use the callback method of the AJAX loader in jQuery but I don't necessarily want to call drawCircle when the load is complete. I may want to wait a bit or do it as a result of an action from the user. Is it possible to reference these functions from an AJAX-loaded div? If not, can I use an alternative method like events and listeners to fire the drawCircle function?
Since you will be loading JS into your page, try calling the function directly?
(The ready function won't run as the main page is already loaded)
Main.html
<script type="text/javascript">
function drawCircle(size) { alert("DRAWING" + size); }
$(function() {
$("#leftofad").load("Today.html?r="+genRand(), function() {
alert('loaded successfully!');
});
});
</script>
<div id="leftofad"></div>
Today.html
<script type="text/javascript">
drawCircle(100);
</script>
If this doesn't work, I strongly suspect that JavaScript returned in an AJAX call is not executed.
In this case, refer to: How to execute javascript inside a script tag returned by an ajax response
$("#leftofad").ajax is not proper.
jQuery's $.ajax function does not use a selector.
What you can use is load:
$("#leftofad").load("Today.html?r="+genRand(), function(){
alert('loaded successfully!');
});
Everyone here has some good answers, but I believe there is a knowledge gap and we are missing some information. If I were you, I would add an alert to the script in the Today.html file right before the drawCirle. Then I would run this page using IE or Chrome dev tools or Firebug in Firefox. When the alert is displayed you can put a breakpoint in the javascript code. Then check your global scope to try and locate drawCirle...
Sorry this is not an exact answer, but with javascript files you need to use debugging tools for this.
while there isn't really a document.ready function for a div, there is a hack that works just as if so:
create your returning data as a full html page:
<html>
<head>
<script type='text/javascript'>
$(document).ready( function () {
do-this;
to-that;
....
});
</script>
</head>
<body>
<%
your possible vbscript
%>
the rest of stuff to be loaded into that div
</body>
</html>
Then, you can have as many cascading div loading from different page loading and .... rinse and repeat ... forever .... EXPERIMENT with different DOCTYPE to see the different results.
EDIT:
Then, of course, you load the original MAIN with
$('#thedivid').load('url-of-the-html-returning-page');
Which, in turn, can have the VERY SAME call in the returning page document.ready as, for example; $('#thedivid-inthereturningdata-html-page').load('url-of-the-html-of-the-child-process-for-whaterver); .... and so on.
Go ahead, PLAY AROUND and make wonderful ajax based applications ....
Related
So I have this block of code:
$(document).ready(function() {
planSelectionForm.init($("form#new_account"));
});
And when I link to this page it works as expected. But when I refresh from the browser it doesn't get triggered. This seems like a common problem. Just for the record I'm using turbolinks. Any help on why this is happening would be great!
The only solution I could find after getting this problem was wrapping my script with:
document.addEventListener("turbolinks:load", function() {
planSelectionForm.init($("form#new_account"));
});
Wrap your .onready() functions into a function called initialize. The point, is to seperate the event-driven function calls such that the event driven function call calls a global function.
In there, add to your body or another element that supports onload.
$(document).ready(function() {
initialize();
});
function initialize()
{
}
<body onload="initialize(); return;"> </body>
Also, for Caleb, in my experiance, I believe jQuery ready events only get executed on either a fresh load, or a ctrl+f5 cache reload.
In my file, a have many dom elements and an external javascript file that has some functions to manage events. The problem is that when i include the functions.js file at the end of my main file:
<script src="functions.js"></script>
That works for some elements but not for others. So i move that at the top of my file, and now it works for some elements but not the other either.
It doesn't works means that i got such error in the web console:
ReferenceError: oneOfMyFunctions is not defined
What is the best place to put that include? Thanx in advance.
EDIT:
In my html file (the main file), i did this:
<script>
window.onload = function(){
// start calling your function eg. functions.j();
myFunction();
};
</script>
Still get the same issue.
You can put your JavaScript file anywhere in page. But you should use window.onload method to start execution of your code.
<script>
window.onload = function(){
// start calling your function eg. functions.j();
};
</script>
If you invoke the function before its loaded, it doesn't know what to do. There are two solutions to this:
Use the window.onload option (or jquery $(document).ready(function(){ ... });
make the function call after you load the scripts.
Please see the the following http://valogiannis.com/recent/ .I have a webpage and when user click XHTML code a div with id result loads the contents of a webpage (in this case codes/advocasys.html). In fact what I wish to do is to highlight the html code. I have link the necessary css/js. I use the SyntaxHighlighter 3.0.83. This highlighter needs to call the SyntaxHighlighter.all() after the <pre> tag (more info here). If I have the html code in the same page which I want to highlight works nice, but I cannot make it to work, when the script loads the external page advocasys.html. I tried to put the
<script type="text/javascript">
SyntaxHighlighter.all()
</script>
in the bottom of the advocasys.html, but It didn't work. How can I make it work?
Thanks in advance.
The .all() call attaches an event handler to window.load which already happened, instead use .highlight(), like this:
SyntaxHighlighter.highlight();
You need to call SyntaxHiglighter in the callback function after the data is returned:
$('#myLink').click(function(){
$('#result').load('codes/advocasys.html', function() {
$('#result').show();
$('.scroll-pane').jScrollPane();
SyntaxHighlighter.highlight();
});
return false;
});
I have tried it using jQuery but it is not working.
<script>
$("a").click(function () {
$.post("http://www.example.com/trackol.php", {result: "click"
}, "html");
});
</script>
out
To get the best results you should change two things in your approach
Use onmousedown instead of click - this way you get a few extra milliseconds to complete the tracking request, otherwise the browser might not start the connection to your tracker at all as it is already navigating away from the original page. The downside is that you might get some false-positive counts, since the clicking user might not finish the click (eg. keeps the mousebutton down and moves the cursor away from the link) but overall it's a sacrifice you should be willing to make - considering the better quality of tracking.
Instead of an Ajax call ($.post('...')) use an image pre-fetcher (new Image().src='...'). The fact that the tracker is not an image is not relevant in this case because you don't want to use the resulting "image" anyway, you just want to make a request to the server. Ajax call is a two way connection so it takes a bit more time and might fail if the browser is already navigating away but the image pre-fetcher just sends the request to the server and it doesn't really matter if you get something back or not.
So the solution would be something like this:
<script>
$(document).ready(function() {
$("a").mousedown(function (){
new Image().src= "http://www.example.com/trackol.php?result=click";
});
});
</script>
out
Instead of using JavaScript to call a php tracking script, you could just link to your tracking script directly and have it in turn redirect the response to the ultimate destination, something like this:
out
and in the PHP script, after you do your tracking stuff:
...
header("Location: $dest");
As mentioned, the problem is you’re not running the script after the DOM has loaded. You can fix this by wrapping your jQuery script inside $(function() { }, like so:
This works:
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Tracking outgoing links with JavaScript and PHP</title>
</head>
<body>
<p>Test link to Google</p>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4/jquery.min.js"></script>
<script>
$(function() {
$('a').click(function() {
$.post('http://www.example.com/trackol.php', { result: 'click' }, 'html');
});
});
</script>
</body>
</html>
See it in action here: http://jsbin.com/imomo3
I have a website with a form that uses TinyMCE; independently, I use jQuery. When I load the form from staging server on Firefox 3 (MacOS X, Linux), TinyMCE doesn't finish loading. There is an error in Firefox console, saying that t.getBody() returned null. t.getBody(), as far as I understand from TinyMCE docs, is a function that returns document's body element to be inspected for some features. Problem doesn't occur when I use Safari, nor when I use Firefox with the same site running from localhost.
Original, failing JavaScript-related code looked like this:
<script type="text/javascript" src="http://static.alfa.foo.pl/json2.js"></script>
<script type="text/javascript" src="http://static.alfa.foo.pl/jquery.js"></script>
<script type="text/javascript" src="http://static.alfa.foo.pl/jquery.ui.js"></script>
<script type="text/javascript" src="http://static.alfa.foo.pl/tiny_mce/tiny_mce.js"></script>
<script type="text/javascript">
tinyMCE.init({ mode:"specific_textareas", editor_selector:"mce", theme:"simple", language:"pl" });
</script>
<script type="text/javascript" src="http://static.alfa.foo.pl/jquery.jeditable.js"></script>
<script type="text/javascript" src="http://static.alfa.foo.pl/jquery.tinymce.js"></script>
<script type="text/javascript" charset="utf-8" src="http://static.alfa.foo.pl/foo.js"></script>
<script type="text/javascript">
$(document).ready(function(){
/* jQuery initialization */ });
</script>
I tried changing script loading order, moving tinyMCE.init() call to the <script/> tag containing $(document).ready() call—before, after, and inside this call. No result. When tinyMCE.init() was called from within $(document).ready() handler, the browser did hang on request—looks like it was too late to call the init function.
Then, after googling a bit about using TinyMCE together with jQuery, I changed tinyMCE.init() call to:
tinyMCE.init({ mode:"none", theme:"simple", language:"pl" });
and added following jQuery call to the $(document).ready() handler:
$(".mce").each( function(i) { tinyMCE.execCommand("mceAddControl",true,this.id); });
Still the same error. But, and here's where things start to look like real voodoo, when I added alert(i); before the tinyMCE.execCommand() call, alerts were given, and TinyMCE textareas were initialized correctly. I figured this can be a matter of delay introduced by waiting for user dismissing the alert, so I introduced a second of delay by changing the call, still within the $(document).ready() handler, to following:
setTimeout('$(".mce").each( function(i) { tinyMCE.execCommand("mceAddControl",true,this.id); });',1000);
With the timeout, TinyMCE textareas initialize correctly, but it's duct taping around the real problem. The problem looks like an evident race condition (especially when I consider that on the same browser, but when server is on localhost, problem doesn't occur). But isn't JavaScript execution single-threaded? Could anybody please enlighten me as to what's going on here, where is the actual problem, and what can I do to have it actually fixed?
The browser executes scripts in the order they're loaded, not written. Your immediate scripts -- tinyMCE.init(...) and $(document.ready(...)); -- can execute before the files finish loading.
So, the problem is probably network latency -- especially with 6 separate scripts (each requiring a different HTTP conversation between the browser and server). So, the browser is probably trying to execute tinyMCE.init() before tiny_mce.js has finished being parsed and tinyMCE is fully defined.
If don't have Firebug, get it. ;)
It has a Net tab that will show you how long it's taking all of your scripts to load.
While you may consider the setTimeout to be duct taping, it's actually a decent solution. Only problem I see is that it assumes 1 second will always fix. A fast connection and they could see the pause. A slow connection and it doesn't wait long enough -- you still get the error.
Alternatively, you might be able to use window.onload -- assuming jQuery isn't already using it. (Can anyone else verify?)
window.onload = function () {
tinyMCE.init(...);
$(document).ready(...);
};
Also, was that a direct copy?
<script type="text/javascript">
$(document).ready(function(){
/* jQuery initialization */ }
</script>
It's missing the ) ending ready:
<script type="text/javascript">
$(document).ready(function(){
/* jQuery initialization */ })
</script>
Missing punctuation can cause plenty of damage. The parser is just going to keep reading until it finds it -- messing up anything in between.
Since this is the first page which came in google when I asked myself the same question, this is what i found about this problem.
source
There's a callback function in tinyMCE which is fired when the component is loaded and ready. you can use it like this :
tinyMCE.init({
...
setup : function(ed) {
ed.onInit.add(function(ed) {
console.log('Editor is loaded: ' + ed.id);
});
}
});
If you are using jquery.tinymce.js then you don't need tiny_mce.js because TinyMCE will try to load it with an ajax request. If you are finding that window.tinymce (or simply tinymce) is undefined then this means that the ajax is not yet complete (which might explain why using setTimeout worked for you). This is the typical order of events:
Load jquery.js with a script tag (or google load).
Load TinyMCE's jQuery plugin, jquery.tinymce.js, with a script tag.
Document ready event fires; this is where you call .tinymce(settings) on your textareas. E.g.
$('textarea').tinymce({ script_url: '/tiny_mce/tiny_mce.js' })
Load tiny_mce.js this step is done for you by TinyMCE's jQuery plugin, but it could happen after the document ready event fires.
Sometimes you might really need to access window.tinymce, here's the safest way to do it:
$(document).tinymce({
'script_url': '/tiny_mce/tiny_mce.js'
'setup': function() {
alert(tinymce);
}
});
TinyMCE will go so far as to create a tinymce.Editor object and execute the setup callback. None of the editor's events are triggered and the editor object created for the document is not added to tinymce.editors.
I also found that TinyMCE's ajax call was interfering with my .ajaxStop functions so I also used a setTimeout:
$(document).tinymce({
'script_url': '/tiny_mce/tiny_mce.js'
'setup': function() {
setTimeout(function () {
$(document).ajaxStart(function(e) {/* stuff /});
$(document).ajaxStop(function(e) {/ stuff */});
}, 0);
}
});