FireFox: AddEventListener Vs. Window.onerror
Nov 30, 2006
I've been using window.onerror to capture and report JavaScript errors
from other users for debugging an application I've written. But I've
run into a strange issue with Firefox and window.onerror.
It seems that any code that executes, having originated from an
"element.addEventListener", causing an error does not activate
"window.onerror". But it does at least show up in Firefox's JavaScript
error console. Internet Explorer doesn't appear to suffer from the
same issue when it uses it's equivalent "element.attachEvent".
Does anyone know why this is and if there is any workarounds or if it's
possibly a bug? Code:
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May 30, 2011
I am trying to use the following code to trap JavaScript errors. It seems to work well in IE and FF but not in Opera. I expect I must have turned it off somewhere in the "preferences" but I can't find where. I'm using Opera 10.10.
Code:
<script type="text/javascript">
function Err() {[code].....
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Dec 2, 2010
How do you translate this to JQUERY?
window.onerror = ftnJavascriptErrorNotification;
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Aug 20, 2010
On my site we have image galleries that pop up over top of the page in a higher z-index and position:fixed, and another div between the gallery and background with opacity set to about 85%. The image gallery div has a close button, and I was asked to make the gallery also close by pressing ESC, so I added this:
igevt=function(evt){checkclosegal(evt)}
window.addEventListener('keypress',igevt, false)
and checkclosegal:
function checkclosegal(evt)
[Code]....
This works perfectly in Firefox and Opera, but Chrome and Safari don't fire the event (not worried about ie right now - I know it uses attachEvent). Could it have something to do with the gallery being in a higher z-index?
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Jun 30, 2005
I try to do this:
<head>
<script type="text/javascript">
function uppercaseListener() {
this.value = this.value.toUpperCase();
}
function installListeners() {
var element = document.getElementById('street');
element.addEventListener('change', uppercaseListener, false);
}
window.addEventListener('load', installListeners, false);
</script>
The ERROR:
"The object does not accept this property or metodo"
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Aug 20, 2010
On my site we have image galleries that pop up over top of the page in a higher z-index and position:fixed, and another div between the gallery and background with opacity set to about 85%. The image gallery div has a close button, and I was asked to make the gallery also close by pressing ESC, so I added this:
igevt=function(evt){checkclosegal(evt)}
window.addEventListener('keypress',igevt, false)
and checkclosegal:
function checkclosegal(evt)
[Code]....
This works perfectly in Firefox and Opera, but Chrome and Safari don't fire the event (not worried about ie right now - I know it uses attachEvent).
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Aug 18, 2009
I'm creating a script which causes the page to scroll when the mouse is held down within 1/3 of the page height of the window edge. An example can be found at [URL], and is working fine in Firefox, Safari and Chrome, but not in IE. I'm 90% certain this is due to the browser's non-handling of addEventListener, but I'm not sure how to fix this...I've tried the following so far:
[Code]...
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Sep 13, 2007
If I try to attach onerror event via addEventListener
window.addEventListener("error", myError, false) it does not work as it pass to myError only the event object but not the three parameters error message, url, line number as in: window.onerror = myError infact if I assing it via window.onerror = myError it works!
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Jun 15, 2011
I have this piece of code:
Code:
I don't understand it ... it should work :-? ...
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Jul 20, 2005
I am handing a string as a parameter pImage = "Images/Available.jpg"
If this image is NOT available I would like to load Images/NoImage.jpg.
Unfortunately the following code does NOT work.
obj.write('<p><img src=' + pImage + '
border="0"></p>');
Where is my mistake ?
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Mar 24, 2011
i have this code i need to close the parent.html window when the child window opened, i need the code for that working well in IE and Firefox Parent.html
<HTML>
<SCRIPT TYPE="text/javascript">
function sendTo()
{
window.open('child.html','_blank','resizable=yes,width='+(screen.width-500)+',height='+(screen.height-500)+'');
}
[Code]...
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Mar 14, 2009
Firstly I know this issue has been addresses a lot already but as a newbie to HTML and Web Development I am unable to get the idea. according to documentations and solutions proposed on different forums a popup or child window can be only closed using window.close() if it is opened via window.open() function.
[Code]...
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Jun 6, 2009
I have just downloaded the JavaScript HTML WYSIWYG editor TinyMCE. It works well except when I click on the link button or any other button that opens a window to add an element, nothing loads in the window.I have downloaded multiple up-to-date versions and non of them work. The examples on the TinyMCE website work for me. Also the examples that I downloaded work in Internet Explorer 7, Safari (for windows), Google Chrome, and Opera.It just does not work in Firefox. I even disabled all my add-ons and reinstalled Firefox.When i went to upload it to a server (the version I downloaded) it worked in Firefox.How do I make it so it will run in Firefox locally?
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Sep 21, 2005
This makes my life a bit easier. After executing this script you should be able to addEventListener on all elements instead of determining if you want to call attachEvent or addEventListener.
Edit: This is the original version. The revised version is below
if (!document.addEventListener && document.attachEvent)
{
Object.prototype.addEventListener = function(eventName, func, capture)
{
if (this.attachEvent)
this.attachEvent('on' + eventName, func);
}
var i, l = document.all.length;
for (i = 0; i < l; i++)
document.all[i].addEventListener = Object.prototype.addEventListener;
window.addEventListener = Object.prototype.addEventListener;
document.addEventListener = Object.prototype.addEventListener;
}
Revised version:
This one is harder to use but it is nicer to the DOM and all newly created objects. The problem with it is that addEventListener will only be available after the page loads.
If you want to use addEventListener from a window.onload script make sure that this code is included in the body, not in the head. document.body.onload is called before window.onload.
Now, only elements that already have attachEvent will get an addEventListener. Elements created with document.createElement will automatically get addEventListener.
function createIEaddEventListeners()
{
if (document.addEventListener || !document.attachEvent)
return;
function ieAddEventListener(eventName, handler, capture)
{
if (this.attachEvent)
this.attachEvent('on' + eventName, handler);
}
function attachToAll()
{
var i, l = document.all.length;
for (i = 0; i < l; i++)
if (document.all[i].attachEvent)
document.all[i].addEventListener = ieAddEventListener;
}
var originalCreateElement = document.createElement;
document.createElement = function(tagName)
{
var element = originalCreateElement(tagName);
if (element.attachEvent)
element.addEventListener = ieAddEventListener;
return element;
}
window.addEventListener = ieAddEventListener;
document.addEventListener = ieAddEventListener;
var body = document.body;
if (body)
{
if (body.onload)
{
var originalBodyOnload = body.onload;
body.onload = function()
{
attachToAll();
originalBodyOnload();
};
}
else
body.onload = attachToAll;
}
else
window.addEventListener('load', attachToAll);
}
createIEaddEventListeners();
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Nov 16, 2006
Today I have been testing the event models from Netscape 4.8 and IE 4
to the current crop of browsers. I'd like to write a small event
library similar in purpose to the Yahoo! UI event library but with less
features and code. The Yahoo! event library is one of the best
libraries in YUI but it still seems to me to have some confused
code...that or I'm still confused.
The Yahoo! UI library focuses on using addEventListener and
attachEvent. However, due to the click and dblclick bugs in Safari a
long legacy event workaround is included to use a Netscape4-type event
model for Safari. Something like this
var listeners = [function(event){}, function(event){}];
document.getElementById('blue').onmouseover = function(event) {
for (var i=0; i<listeners.length; i++) {
listeners[i](event);
}
};
With this above example, multiple handler functions can be fired for a
single event. I imagine that this is an old trick that has been around
for a long time, yes?
With all the new browsers I tested with this legacy workaround, the
listener handlers can use event.stopPropogation() or
event.cancelBubble=true and they work as desired. The handler functions
can also use event.preventDefault() and event.returnValue=false and
they too work. These seem to work because the event object passed to
the handlers is a modern event object and not one from Netscape4.
My question is, if Safari needs this legacy workaround, and the legacy
workaround seems to work in all the browsers that have addEventListener
or attachEvent, then why bother with the addEventListener and
attachEvent functions at all? Why not just use the legacy way for all
browsers and all type of events.?
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Apr 19, 2009
I was using this script to learn how to use event listeners and I need to know how to make it work for IE. I keep finding attachEvent scripts that look like they will work, but I get nothing. I've spent several hours finding script after script that simply don't work. I don't know where to turn next. Any script to attach these events to IE?
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "[URL]">
<html>
<head>
<title>Test</title>
</head>
<body><div>
<script type="text/javascript">
if(!Array.prototype.link)
Array.prototype.link = function(f) { for(var Obect1 = new Array(), i = 0, n = this.length, t = arguments[1]; i < n; i++) Obect1[i] = f.call(t, this[i], i, this);return Obect1;};
Array.prototype.linkMethod = function(m) { var n = this.length, args = this.slice.call(arguments, 1);if(typeof m == "string" && n > 0) m = this[0][m];for(var Obect2 = [], i = 0; i < n; i++) Obect2[i] = m.apply(this[i], args);return Obect2;}; .....
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Oct 20, 2006
I'm trying to add a clickevent to an anchor that I created trough DOM.
This his how the code looks:
var oSubLink = document.createElement("A");
oSubLink.appendChild(document.createTextNode("+"));
oCel.appendChild(oSubLink);
oSubLink.addEventListener("click", klapUit(oTabel.id, eigenschappen[2]), false);
It failes at the addEventListener call, saying "No such interface supported" (appears to be one of the two default error messages IE gives when it can't handle your JS :mad: ).
How can I fix this? The solution should work in IE6, FF, Opera, Mozilla and Safari.
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Jul 12, 2007
Is there a way to send parameters to the function being added to an event with addEventListener. I.E. say you have this function
Code:
function someFcn(i){
alert(i);
}
and I add it to an object.
Code:
someElement.addEventListener('focus', someFcn, false);
Is there a way to send a parameter to someFcn.
For Example I have tried this but it failed
Code:
var someString = 'Hello World'
someElement.addEventListener('focus', someFcn(someString), false);
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Sep 9, 2011
I have this code:
for(var h:Number=0; h<4; h++){
var Build : Button;
Build = new Button();
Build.height = 20;
[Code]...
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Jul 23, 2005
I'm a newbie in mozilla web development. I've been developping apps
for IE and Netscape for years though.
After searching the internet (groups google etc..), I found a way to
pop a modal window using a XUL page.
Here is my question: despite seing examples of how to return a value
to the caller window, I have been unable to make this work. Is there
anyone who would have a TESTED very simple example on poping a modal
window that would receive one argument and would return a result?
I want to use this to pop a calendar page and return the date chosen.
I have the code for the calendar, but I need the mechanism to get the
date back. This window has to be modal by requirement.
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Sep 12, 2006
I've a button that onclick calls a function that calls the following
code. The last 3 lines are for IE, which didn't want to close till I
put in the funny line with opener.
window.parent.focus();
window.close();
window.opener = window;
window.close();
window.parent.focus();
This closes a window in IE, but in FireFox an odd thing happens. I have
to mouseout of something before it closes. If I click the button and
then leave the mouse sitting there, above the button, then nothing
happens in FireFox. It's as if the code is broken.
I did originally have window.blur in their, instead of parent.focus.
But I took it out a while ago and did shift-refresh in FireFox.
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Oct 26, 2006
With Firefox 1.5+, I used the following code to close a window/tab:
===
<html><head>
<script language="javascript" type="text/javascript">
function closeWindow() {
window.open('','_parent','');
window.close();
}
closeWindow();
</script></head><body></body></html>
===
Since I upgraded to Firefox 2.0, it does not work - the window/tab
stays open.
Any idea how I can "load a page" that would force a window/tab close?
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Jun 20, 2010
I'm putting together a popup flash player that can be launched from a url posted on a board. The link goes to a landing page which executes an onLoad script that opens the popup, then closes itself, leaving the popup over the board. Works fine in IE, but in FF the landing page remains open behind the popup and over the board. It will not self.close, and can't be closed from the popup (close.opener). Leading theory is that a FF window cannot be closed with script if it was not opened with script, and I've somewhat confirmed this, but seems a simple thing and should be doable.
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Jun 17, 2010
Been trying for three days to find a way to self close a FF window. The window is opened from a link on a board, and its only purpose is to run an onLoad script that launches a popup window, after which I need it to close itself. There are any number of ways to do this in IE, but nothing works in FF - the parent window remains open. Seems ridiculous that something so simple can't be done.
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Jul 20, 2005
When you use addEventListener (or addEvent in IE) to call an object
method, does it call it with the correct this parameter?
The ECMAScript reference has a lot to say about the caller using
Function.prototype.call or Function.prototype.apply and passing the
correct this pointer for the context, but how does addEventListener
determine the correct this pointer. Or does it just punt and pass the
global context, thus making it impossible to refer to the object this
in an object method used as an event listener?
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Jun 1, 2011
Is it possible to add events using addEventListener to multiple radio buttons with same id ?
<input id="radId" type="radio" value="0" name="radioname">No
<input id="radId" type="radio" value="1" name="radioname">Yes
I tried to attach event using document.getelementByID BUT it always picks the first radio button.
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