windows object identity

[mikharakiri_nospaum]

Is there a way to tell one window from another? A quick look into wndow
object properties revealed nothing obvious. I want to keep track of
window object identity in a hidden input widget, so that whenever user
clones the window, I'll be able identify this and provide an extra
session.

[Thomas 'PointedEars' Lahn]

mi************* ****@yahoo.com wrote:

Is there a way to tell one window from another?

Sure. If window1 == window2 yields `false', the Window objects referred to
are different, otherwise both references point to the same Window object.
PointedEars

[mikharakiri_nospaum]

Thomas 'PointedEars' Lahn wrote:

mi************* ****@yahoo.com wrote:

Is there a way to tell one window from another?

Sure. If window1 == window2 yields `false', the Window objects referred to
are different, otherwise both references point to the same Window object.

Yes, but the scope is outside of Java Script environment. I want to
save window.id or its equivalent as a text string in a hidden form
widget that can be passed as parameter to servlet/JSP processor. Within
the javascript on page, I prefer not to have any knowledge about the
other browser windows.

[Randy Webb]

Thomas 'PointedEars' Lahn said the following on 4/21/2006 10:51 PM:

mi************* ****@yahoo.com wrote:

Is there a way to tell one window from another?

Sure. If window1 == window2 yields `false', the Window objects referred to
are different, otherwise both references point to the same Window object.

You really should learn to read, and comprehend, English before replying
to a lot of the posts you reply to. Had you continued reading, and
comprehended, the context you would have been able to give a better -
more informed - response.

The answer to the question is no. And you are, yet again, showing your
immature pedantic behavior.

Now, go ahead, use your ad hominem defense.

--
Randy
comp.lang.javas cript FAQ - http://jibbering.com/faq & newsgroup weekly
Javascript Best Practices - http://www.JavascriptToolbox.com/bestpractices/

[ASM]

mi************* ****@yahoo.com a écrit :

Yes, but the scope is outside of Java Script environment. I want to
save window.id or its equivalent as a text string in a hidden form
widget that can be passed as parameter to servlet/JSP processor. Within
the javascript on page, I prefer not to have any knowledge about the
other browser windows.

windows names are only known by the file loaded (or at best by the window)

I think that to refer to a (precedent) window.name in a new file loaded
would'nt be abble to work.

Anyway I don't understand why you need to know in witch windows files
are displayed.
Isn't problem of the browser or its user ?

--
Stephane Moriaux et son [moins] vieux Mac

[Touffy]

On 2006-04-22 05:12:31 +0200, mi************* ****@yahoo.com said:

Thomas 'PointedEars' Lahn wrote:

mi************* ****@yahoo.com wrote:

Is there a way to tell one window from another?

Sure. If window1 == window2 yields `false', the Window objects referred to
are different, otherwise both references point to the same Window object.

Yes, but the scope is outside of Java Script environment. I want to
save window.id or its equivalent as a text string in a hidden form
widget that can be passed as parameter to servlet/JSP processor. Within
the javascript on page, I prefer not to have any knowledge about the
other browser windows.

I don't really understand what you intend to do with those IDs.

First, if you want all windows with your site loaded into them to
communicate with each other directly :

Are your extra windows opened by JavaScript (window.open) or do you
want to track any window opened ?

For exemple, if the user manually opens two tabs (or windows) in his
browser and connects to your website on both, a script in one tab will
*never* be able to access the other directly. They could communicate
via the server, or by sharing cookies.

If you care only about window.open'ed windows, then the opener has a
reference to the popup (the value returned by window.open()) and the
popup can use window.opener to access it's opener.

But that has nothing to do with IDs.

Either way you could give a unique ID to each window (that's the
session ID you're already using anyway, so no problem here, just assign
an "id" property to the window if you want to formalize that), but of
course this id cannot be found by getElementById( ).

If the windows can access each other, then they can read each other's
id property (I still can't begin to guess why you'd want them to do
that). If not, too bad.
--
David Junger

[mikharakiri_nospaum]

Touffy wrote:

Are your extra windows opened by JavaScript (window.open) or do you
want to track any window opened ?
Cloning new browser window is as simple as "Ctrl-New Window". The end
user may continue his session from a new window as well as the old one.
For exemple, if the user manually opens two tabs (or windows) in his
browser and connects to your website on both, a script in one tab will
*never* be able to access the other directly. They could communicate
via the server, or by sharing cookies.
I dont want one window to be aware of the other one.. All I want from
the script is to tell some surrogate value of the window identity. This
could be just raw address.

I'm kind of perplexed. Any OO programming language can output the
reference/pointer to the object. Not in JS?
Either way you could give a unique ID to each window (that's the
session ID you're already using anyway, so no problem here, just assign
an "id" property to the window if you want to formalize that), but of
course this id cannot be found by getElementById( ).

Therefore, you refer me to the session variable in JSP (which BTW I
don't use)? How does JSP/Servlet session behaves when I clone the
window? (If they are different then it solves my problem)

[mikharakiri_nospaum]

mi************* ****@yahoo.com wrote:

How does JSP/Servlet session behaves when I clone the
window? (If they are different then it solves my problem)

Just tested: The session object for the cloned browser window is the
same:-(

[Thomas 'PointedEars' Lahn]

mi************* ****@yahoo.com wrote:

Touffy wrote:

For exemple, if the user manually opens two tabs (or windows) in his
browser and connects to your website on both, a script in one tab will
*never* be able to access the other directly. They could communicate
via the server, or by sharing cookies.
I dont want one window to be aware of the other one.. All I want from
the script is to tell some surrogate value of the window identity. This
could be just raw address.

Each window must have a different name, so you could use the `name' property
of Window objects.
I'm kind of perplexed. Any OO programming language can output the
reference/pointer to the object. Not in JS?

I have already said that you can compare Window object references against
each other, have I not?

But if the user opens the window, there is no reference/pointer to an object
in JS, unless you access the Windows (or whatever) API. Browser windows
are _not_ part of the programming language (they have been, but that was
in the JS-on-NN/IE-only times) but of the Application Object Model the
browser provides. It is your fault not recognizing that, not JS's.
PointedEars
--
Alcohol and Math don't mix. So please don't drink and derive!

[mikharakiri_nospaum]

Thomas 'PointedEars' Lahn wrote:

Each window must have a different name, so you could use the `name' property
of Window objects.
How? The script

<script>
alert(window.na me)
</script>

outputs blank value

If I clone the window, the output doest change.
But if the user opens the window, there is no reference/pointer to an object
in JS, unless you access the Windows (or whatever) API.

OK, failing that, is there other programmtic method to distinguish
between browser windows?