Finding the Host name on a particular window?

[Bilal]

Hi,
I have a web application that operates on several windows. Each window
is named win_1, win_2, win_3,... . When I quit a session, I usually
loop through all the windows and close one by one. So far so good
until my client wants to surf on 1 particular window and doesn't want
that window to close when a I quit a session.
I had something in mind:
find the window url through "window.locatio n.host" or something (I'd
save it as a global variable) and when I loop through my windows to
quit one by one, I thought I'd compare their host and if it is not
equal, I leave it open. I'm using the following codes at the moment:
_______________ __________
for($i=2;$i<=$w indow_number;$i ++) {
$str = "if (window.parent. name != 'win_'".$i."') {window.open
('','win_'".$i. "').close() ;}";
echo $str;
}
.....
echo "if (window.parent. name != 'win_1'){window .parent.close() ;}";
_______________ __________

Suppose win_3 has url "www.google.com ", how can I retrieve the host
name of win_3? Is it possible? Is there any easy way without having
recourse to major changes? I appreciate any suggestions.
Kind regards
Bils

[Rico Huijbers]

Re: Finding the Host name on a particular window?

Bilal wrote:[color=blue]
> Hi,
> I have a web application that operates on several windows. Each window
> is named win_1, win_2, win_3,... . When I quit a session, I usually
> loop through all the windows and close one by one. So far so good
> until my client wants to surf on 1 particular window and doesn't want
> that window to close when a I quit a session.
> I had something in mind:
> find the window url through "window.locatio n.host" or something (I'd
> save it as a global variable) and when I loop through my windows to
> quit one by one, I thought I'd compare their host and if it is not
> equal, I leave it open. I'm using the following codes at the moment:
> _______________ __________
> for($i=2;$i<=$w indow_number;$i ++) {
> $str = "if (window.parent. name != 'win_'".$i."') {window.open
> ('','win_'".$i. "').close() ;}";
> echo $str;
> }
> ....
> echo "if (window.parent. name != 'win_1'){window .parent.close() ;}";
> _______________ __________
>
> Suppose win_3 has url "www.google.com ", how can I retrieve the host
> name of win_3? Is it possible? Is there any easy way without having
> recourse to major changes? I appreciate any suggestions.
> Kind regards
> Bils[/color]

Well, window.location .href will give you the URL of the page that is
displayed in the given window. So I suppose you could substring search
it, e.g:

if (window.locatio n.href.indexOf( 'www.myhost.com ') >= 0) {
// ...close window...
}

But, without further knowing what you want to do, I find the notion of a
multi-window web application rather ill-conceived. Are you sure you need
multiple windows and if so, couldn't you just use frames?

-Rico

[Randy Webb]

Re: Finding the Host name on a particular window?

Bilal wrote:[color=blue]
> Hi,
> I have a web application that operates on several windows. Each window
> is named win_1, win_2, win_3,... . When I quit a session, I usually
> loop through all the windows and close one by one. So far so good
> until my client wants to surf on 1 particular window and doesn't want
> that window to close when a I quit a session.
> I had something in mind:
> find the window url through "window.locatio n.host" or something (I'd
> save it as a global variable) and when I loop through my windows to
> quit one by one, I thought I'd compare their host and if it is not
> equal, I leave it open. I'm using the following codes at the moment:
> _______________ __________
> for($i=2;$i<=$w indow_number;$i ++) {
> $str = "if (window.parent. name != 'win_'".$i."') {window.open
> ('','win_'".$i. "').close() ;}";
> echo $str;
> }
> .....
> echo "if (window.parent. name != 'win_1'){window .parent.close() ;}";
> _______________ __________
>
> Suppose win_3 has url "www.google.com ", how can I retrieve the host
> name of win_3?[/color]

You can't, unles win_3's URL is in your domain. Its a cross domain
security issue.
[color=blue]
> Is it possible?[/color]

Fortunately, no.
[color=blue]
> Is there any easy way without having recourse to major changes?[/color]

Not really.
[color=blue]
> I appreciate any suggestions.[/color]

Determine why you need 3+ windows open for your app to work, and then
work backwards and make it work within one window.


--
Randy
Chance Favors The Prepared Mind
comp.lang.javas cript FAQ - http://jibbering.com/faq/

[Randy Webb]

Re: Finding the Host name on a particular window?

Rico Huijbers wrote:

<--snip-->
[color=blue]
>
>
> Well, window.location .href will give you the URL of the page that is
> displayed in the given window. So I suppose you could substring search
> it, e.g:
>
> if (window.locatio n.href.indexOf( 'www.myhost.com ') >= 0) {
> // ...close window...
> }[/color]

That will work, if and only if, its in the same domain as the page
calling it. Otherwise, its a cross-domain security issue.

But, location.hostna me is what the OP's after.




--
Randy
Chance Favors The Prepared Mind
comp.lang.javas cript FAQ - http://jibbering.com/faq/

[Matt Kruse]

Re: Finding the Host name on a particular window?

Bilal wrote:[color=blue]
> Suppose win_3 has url "www.google.com ", how can I retrieve the host
> name of win_3? Is it possible?[/color]

No. Javascript security prohibits you from seeing anything about a window
which is not in the same domain as the one the code is running in. If you
try to get the href of a window which is at google.com, you'll get a
run-time error. You can trap this if you'd like, and continue on to the next
window.

--
Matt Kruse
Javascript Toolbox: http://www.mattkruse.com/javascript/

[Default User]

Re: Finding the Host name on a particular window?

Rico Huijbers wrote:[color=blue]
>
> Bilal wrote:[color=green]
> > Hi,
> > I have a web application that operates on several windows. Each window
> > is named win_1, win_2, win_3,... . When I quit a session, I usually
> > loop through all the windows and close one by one. So far so good
> > until my client wants to surf on 1 particular window and doesn't want
> > that window to close when a I quit a session.[/color][/color]

[color=blue]
> But, without further knowing what you want to do, I find the notion of a
> multi-window web application rather ill-conceived.[/color]

That's good advice. Most people don't like web sites opening up a bunch
of new windows.
[color=blue]
> Are you sure you need
> multiple windows and if so, couldn't you just use frames?[/color]


Ugh. Frames are not the solution to anything. The application should
move naturally from content page to content page as needed.




Brian Rodenborn

[Matt Kruse]

Re: Finding the Host name on a particular window?

Default User wrote:[color=blue]
> Ugh. Frames are not the solution to anything. The application should
> move naturally from content page to content page as needed.[/color]

That's fine in most situations, but not always the best solution :)

--
Matt Kruse
Javascript Toolbox: http://www.mattkruse.com/javascript/

[Chung Leong]

Re: Finding the Host name on a particular window?

"Randy Webb" <hikksnotathome @aol.com> wrote in message
news:yJmdnYCeJ5 5tvy_d4p2dnA@co mcast.com...[color=blue]
> Bilal wrote:[color=green]
> > Hi,
> > I have a web application that operates on several windows. Each window
> > is named win_1, win_2, win_3,... . When I quit a session, I usually
> > loop through all the windows and close one by one. So far so good
> > until my client wants to surf on 1 particular window and doesn't want
> > that window to close when a I quit a session.
> > I had something in mind:
> > find the window url through "window.locatio n.host" or something (I'd
> > save it as a global variable) and when I loop through my windows to
> > quit one by one, I thought I'd compare their host and if it is not
> > equal, I leave it open. I'm using the following codes at the moment:
> > _______________ __________
> > for($i=2;$i<=$w indow_number;$i ++) {
> > $str = "if (window.parent. name != 'win_'".$i."') {window.open
> > ('','win_'".$i. "').close() ;}";
> > echo $str;
> > }
> > .....
> > echo "if (window.parent. name != 'win_1'){window .parent.close() ;}";
> > _______________ __________
> >
> > Suppose win_3 has url "www.google.com ", how can I retrieve the host
> > name of win_3?[/color]
>
> You can't, unles win_3's URL is in your domain. Its a cross domain
> security issue.[/color]

But for the same reason close() won't on that window either. Thus the stated
problem doesn't actually exist--not in Internet Explorer anyway.