Access DOM of a popup window problem?

Nick · Feb 23, 2004

I've a main html file which will pop up a window with a image. In the
main Window, I have the following code:

w = window.open('popup.html')
alert(w.document.images.length)

And the alert shows 0.

However, there is a image in the popup window and an
alert(document.images.length) in the popup html file shows 1.

Any suggestion?

Lasse Reichstein Nielsen · Feb 23, 2004

Nick said:
w = window.open('popup.html')
alert(w.document.images.length)

And the alert shows 0.

Ofcourse. The file "popup.html" hasn't even begun to load yet. You'll
have to wait until the page is loaded before you start looking at its
contents.

/L

Nick · Feb 23, 2004

Thanks. I thought the popup finished loading since the open function
return. How to wait? a fix period of time? or better andy
function/variable to tell that?

Weston C · Feb 23, 2004

<i> Thanks. I thought the popup finished loading since the open function
return. How to wait? a fix period of time? or better andy
function/variable to tell that?</i>

Perhaps... you could include an onload event in the body tag of the html
for the popup, which would then set a variable related to the parent
window. Meanwhile, the script running in the parent window could check
every second or so to see if that variable had been set...

~==~
http://weston.canncentral.org/
Taking Pictures During Dreams
weston8[at]cann8central.org
(remove eights to email me)

Nick · Feb 23, 2004

Thanks, I also thought about similar method. But it's so cumbersome....
Had to put the code in the popup html code. Don't know why the W3C not
expand it because it's so important a feature.

Michael Winter · Feb 23, 2004

[Fixed and snipped top-post]

Weston C wrote:
[snip]

Perhaps... you could include an onload event in the body tag of the
html for the popup, which would then set a variable related to the
parent window. Meanwhile, the script running in the parent window
could check every second or so to see if that variable had been
set...

Click to expand...

[snip]

Thanks, I also thought about similar method. But it's so cumbersome....
Had to put the code in the popup html code. Don't know why the W3C not
expand it because it's so important a feature.

Considering that the W3C discourage pop-ups on the basis of reduced
accessibility, that isn't going to happen in the near future.

Mike

DU · Feb 23, 2004

Weston said:
<i> Thanks. I thought the popup finished loading since the open function
return. How to wait? a fix period of time? or better andy
function/variable to tell that?</i>

Perhaps... you could include an onload event in the body tag of the html
for the popup, which would then set a variable related to the parent
window. Meanwhile, the script running in the parent window could check
every second or so to see if that variable had been set...

~==~
http://weston.canncentral.org/
Taking Pictures During Dreams
weston8[at]cann8central.org
(remove eights to email me)

Well, I'm happy to read your post because this is almost exactly what I
do

in this page:

Create a sub-window and dynamically DOM-insert an image
http://www10.brinkster.com/doctorunclear/HTMLJavascriptCSS/DynamicInsertionDOMImageInPopup.html

DU

Grant Wagner · Feb 27, 2004

Don't keep a script running in the opener waiting for a state change, that's
silly (and cumbersome). Just have the state change of the popup trigger a
handler function in the opener.


var w = window.open('popup.html');
function wIsNowOpen(message) {
alert(message);
}


<body onload="call_wIsNowOpen();">
<script type="text/javascript">
function call_wIsNowOpen() {
if (window.opener && window.opener.wIsNowOpen) {
window.opener.wIsNowOpen('w is now open');
}
}
</script>

Thanks, I also thought about similar method. But it's so cumbersome....
Had to put the code in the popup html code. Don't know why the W3C not
expand it because it's so important a feature.

--
| Grant Wagner <[email protected]>

* Client-side Javascript and Netscape 4 DOM Reference available at:
*
http://devedge.netscape.com/library/manuals/2000/javascript/1.3/reference/frames.html

* Internet Explorer DOM Reference available at:
*
http://msdn.microsoft.com/workshop/author/dhtml/reference/dhtml_reference_entry.asp

* Netscape 6/7 DOM Reference available at:
* http://www.mozilla.org/docs/dom/domref/
* Tips for upgrading JavaScript for Netscape 7 / Mozilla
* http://www.mozilla.org/docs/web-developer/upgrade_2.html

Javascript DOM	1	Mar 29, 2023
X.value problem	4	Mar 27, 2024
Positioning a popup	10	Dec 13, 2020
Positioning a popup	1	Oct 10, 2020
Main window call Javascript function in popup window, and vice versa	3	Aug 16, 2007
Javascipt problem.	22	Nov 29, 2022
Changing styles inside shadow-root	2	Jan 8, 2024
Popup HTML help	5	Nov 28, 2019

Access DOM of a popup window problem?

Nick

Lasse Reichstein Nielsen

Nick

Weston C

Nick

Michael Winter

DU

Grant Wagner

Ask a Question

Similar Threads

Members online

Forum statistics

Latest Threads