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SubZero
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 Posted: Thu Sep 07, 2006 9:49 pm Post subject: Javascript within C++ |
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Hello,
We are producing javascript from within ICS web server/C++ and wonder if the
following is possible with JS,
- Creating an upload meter for File POSTs with Javascript
- Making multi-socket uploads with different content-ranges (server-side
will be coded by ourselves, we are looking for a solution to hack the
browsers to send it)
Best Regards,
SZ |
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Colin B Maharaj
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| Posted: Tue Oct 03, 2006 3:27 am Post subject: Re: Javascript within C++ |
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In most web applications that has to eventually get a connection from a
browser, the default behavior would be to get a connection send content
and then disconnect.
Because of this it is almost impossible to have a true continuous status
of any kind of activity.
A good option (but complex one) would be using AJAX. Asynchronous
Javascript and XML. A simpler one would be to use an HTML window of
sorts and periodically update the state of the entire window (refresh)
every 5 or more seconds.
To see a good example of this, go to dropload.com, create an account and
send a file to someone (using their rules).
You will then see an upload screen that uploads and refreshes in the way
I described.
Hope this helped...
Good luck!
Colin B Maharaj, Trinidad and Tobago.
--------------------------------------
C++ Builder, Javascript, XHTML, CSS Programmer at large.
SubZero wrote:
| Quote: | Hello,
We are producing javascript from within ICS web server/C++ and wonder if the
following is possible with JS,
- Creating an upload meter for File POSTs with Javascript
- Making multi-socket uploads with different content-ranges (server-side
will be coded by ourselves, we are looking for a solution to hack the
browsers to send it)
Best Regards,
SZ
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Remy Lebeau (TeamB)
Guest
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| Posted: Tue Oct 03, 2006 4:40 am Post subject: Re: Javascript within C++ |
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"Colin B Maharaj" <noreply (AT) myhost (DOT) com> wrote in message
news:45219233 (AT) newsgroups (DOT) borland.com...
| Quote: | In most web applications that has to eventually get a connection from
a browser, the default behavior would be to get a connection send
content and then disconnect.
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That is the default behavior in HTTP v1.0 and older. The default behavior
in HTTP v1.1 is to keep the connection open between requests to the same
server.
Gambit |
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Remy Lebeau (TeamB)
Guest
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| Posted: Tue Oct 03, 2006 4:45 am Post subject: Re: Javascript within C++ |
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"SubZero" <g_ates (AT) hotmail (DOT) com> wrote in message
news:45004db8$1 (AT) newsgroups (DOT) borland.com...
| Quote: | We are producing javascript from within ICS web server/C++ and
wonder if the following is possible with JS,
- Creating an upload meter for File POSTs with Javascript
|
Javascript alone cannot do that. The closest you can get is to host the
status bar in a separate HTML frame, and have that page run a timer that
periodically sends a status request to the server to get new HTML for the
status bar.
| Quote: | - Making multi-socket uploads with different content-ranges (server-side
will be coded by ourselves, we are looking for a solution to hack the
browsers to send it)
|
There is no way to make a browser do that. There is nothing in HTML to tell
the browser to send a portion of a file. It is an all-or-nothing operation.
To have better control over the connections, you would have to write a
custom Java/Flash applet or browser plugin to handle that on behalf of the
HTML page.
Gambit |
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