I have an HTML page containing a flash file,
I need to write code in javascript that would execute once the flash file is loaded.
(its actually the code to overide the __flash__removeCallback to solve the famous line:52 bug refer: https://bugs.adobe.com/jira/browse/FP-529)
The actual solution for the bug is doing so on window.onUnload. But this is not possible in my cases since the flash component is in an iframe and the window.onUnload is never fired at all.
For the code to not display an error, i need to track event when the flash file has finished loading on screen.
does any one here have a solution to track down when the flash file has completed loading
OR
Any other solution for the bug that does not involve tracking window.onUnload ?
If you embed the flash file with SWFObject, you can used embedSWF's "callbackFn" parameter which is called when the file is loaded.
Avoid using an iframe. Move the inner html of the iframe to a div element. Then you will probably be able to catch the event.
Related
I am trying to open a local pdf file and print it.It works for files upto 5 kb,but it takes time to load for big files within 1000ms and hangs.I want it to be dynamic and need not fix the timeout .
I tried window.onload but it does not work.Also i dont want to add any onload event to the printing page.
Is there a efficient solution
var win=window.open(printUrl);
setTimeout(function() {
win.print();
win.close();
}, 1000);
Found an workaround for this.Have used PDF Javascripts and embedded a Javascript to print the file.This makes sure that the file is only printed once the page has been loaded.
I had used PDFbox to parse PDF contents and added the below:
PDActionJavaScript javascript = new PDActionJavaScript("this.print();");
Today it seems it's not possible to be notified when a PDF file is loaded in your pages.
Events DOMContentLoad and load are not triggered in iframes, embed, object or popup windows when handling PDF files.
However, there's hope for the future, the HTML5 specs says about the embed tag:
Fetching the resource must delay the load event of the element's
document.
But so far, in Chrome 38 and IE11 it's not true yet, the document load event is fired as soon as the HTML is loaded.
I've got a piece of code that wants to perform a jump to a particular id on the page as soon as the page is ready. I accomplish this by performing a jquery.animate() so that the scrollTop is at my target element.
However, I'm using web fonts, and for some reason the ready event is firing before the web fonts have loaded and been applied. The result is that the animation ends on a position that is often completely unrelated to the actual position of the element I want to scroll to.
I've verified this by opening the timeline in the Chrome inspector, where I see the animation triggering, followed by the web font loading, followed by a re-render which causes my animation target scroll point to become meaningless. I've also confirmed that this issue does not manifest itself when I use a system font.
Could anyone offer some advice? Perhaps there's some sort of event that fires after a web font has been applied?
$(document).ready(...) is triggered when the browser has finished downloading the entire HTML of the page. It is often before the browser has finished downloading the stylesheets, let alone the font files.
Assuming it's loaded from a stylesheet included in the HTML (as opposed to a JavaScript added stylesheet), you should be listening for the window event, rather than the document's load event.
$(window).on('load', function(){
// your resources are loaded
});
Try using .load instead, as .ready is only after the DOM is loaded.
$(window).load(function () {
// run code
});
Here is info regarding why .ready() is NOT what you want:
http://api.jquery.com/ready/
Here is info why .load() (really the Javascript load event) is what you want (it waits for resources to be loaded):
http://api.jquery.com/load-event/
I am developing a site, and I have to set the src of the not found images, to an error image.
the methods .load() and .error() works always except in IE.
I have been searching, and I have found this:
Issue with IE not calling JQuery .load() function on page refresh - traced to image caching
Adding the query string to the image, always loads it from server, and .load() and .error() methods works properly, however the site is quite too big, and I really can't load all images in site every time from server, without loading it from cache.
Any ideas of how make work this methods, without load from server every time the images for IE, or other way to check if image has been loaded correctly or not that work in IE?
Thanks in advance
This is a very old bug that actually was fixed in all modern browsers except IE.
They didn't trigger onload event if image was obtained from cache.
But there is a workaround that is well-known by every person who tried to create an image gallery in javascript a couple of years ago:)
Image DOM element has a property .complete that indicates whether image was loaded or not. You can check this property on script load. If image is in the cache img.complete will return true right after page loaded:
$('img').each(function(){
//this code will not run in IE if image is in the cache
$(this).on('load', function(){
checkImage(this);
});
//this code will run if image is already in the cache
if (this.complete) checkImage(this);
});
function checkImage(){
//your code for checking image
}
Do you have access to the server? A better method may be using .htaccess to rewrite all requests for images to a PHP script, and then if the image is not found, serve the image not found image
I have 2 questions :
How do I know that the contents of the frame ready/loaded (as $(document.ready()))?
How do I know that the popup (window.open()) contents ready/loaded (as $(document.ready()))?
Google said that could help $("iframe").load(), but I did not understand how
DEMO — iframe
The problem with using load() is the iframe may have already loaded before the jQuery has run, thus not triggering the function. One way around this would be to initially load nothing in the iframe (about:blank), then using jQuery to change the src attribute to get the iframe to point to the desired location.
DEMO — window.open (Disable your popup blocker for this demo.)
I'm not sure whether ready() can be used cross-domain. When loading a popup/iframe on the same domain, a script on the child page can be used to report back to the parent window that it is "ready".
The load callback will be called when the iFrame will be load :
$("#iframe-id").load(function(){
//The iFrame content is loaded
})
What I'm trying to do is write a Chrome extension that inserts a snippet of Javascript that will fire after all the Javascript code on the page has run, but before the onload event fires. (There is some code on the page that has an event listener for the onload event). I've tried all that I've thought of for my extension, but I haven't found a consistent way to do this with a Google Chrome Extension.
I've tried setting the run_at value to both "document_start" and "document_end", along with appending this snippet to both the head and the body, both as a <script></script> with inner html and a <script></script> with a src pointing to a file in the extension. Nothing consistently works.
Has anybody had any luck with this or any thoughts on how to proceed?
UPDATE!
I've made some progress, but now I've hit another snag. I have the extension set to run_at document_start, and it is always firing before the script is loaded. Then I add an event listener for the event DOMContentLoaded, then send a request to my background page (to get the currently selected options so I know how to modify the script on the page).
The issue now is that sometimes, the event fires before I receive my response from the background page. When I receive my response before DOMContentLoaded, everything works. Since this is asynchronous though, I haven't found a way to somehow force a wait for this response.
Does anybody have any thoughts of how to proceed?
One naive solution would be to put your script just right before you close the body tag. In that way you are sure that all the scripts are loaded and that no onLoad has been called yet
I haven't tried but using the defer attribute should work.
http://dev.w3.org/html5/spec-author-view/scripting-1.html#attr-script-defer
It works in WebKit, but only since last month so it'll take a while until it reaches Chrome stable.
http://webkit.org/blog/1395/running-scripts-in-webkit/
You can try Chrome Canary or a recent Chromium snapshot.
http://tools.google.com/dlpage/chromesxs
http://build.chromium.org/buildbot/snapshots/
It might also require setting a HTML5 doctype.
http://www.w3.org/TR/html5-diff/#doctype