RE: JavaScript: Retrieving Remote HTML
One method would be to include Page B with a _javascript_ include (script src="" and have Page B put the string you're after into a _javascript_ variable.After the include, your code can see that variable as if it were on the same page. I'm sure there's more elegant solutions though. Shawn -Original Message- From: Nikhil Madani [mailto:[EMAIL PROTECTED] Sent: Friday, March 12, 2004 1:20 PM To: CF-Talk Subject: _javascript_: Retrieving Remote HTML I know this forum might not be the most relevant place for _javascript_ help, but anyway here is my problem: On a certain page A, I have a _javascript_ function that needs to retrieve HTML code from another web page B, possibly on another server.I know for a fact that the page I'm trying to reach will output a single string and I need to set a _javascript_ variable with that value. (For those curious, this other page is a cfm page where I create a string value based on the url params) Any ideas? TIA Nik _ [Todays Threads] [This Message] [Subscription] [Fast Unsubscribe] [User Settings]
Re: JavaScript: Retrieving Remote HTML
That's definitely possible, but I surely cannot do an script src="" from within a _javascript_ functionis there a way I could assign the js variable (created on page B)to a global scope that I can then access inside any _javascript_ function on page A? One method would be to include Page B with a _javascript_ include (script src="" and have Page B put the string you're after into a _javascript_ variable.After the include, your code can see that variable as if it were on the same page. I'm sure there's more elegant solutions though. Shawn -Original Message- From: Nikhil Madani [mailto:[EMAIL PROTECTED] Sent: Friday, March 12, 2004 1:20 PM To: CF-Talk Subject: _javascript_: Retrieving Remote HTML I know this forum might not be the most relevant place for _javascript_ help, but anyway here is my problem: On a certain page A, I have a _javascript_ function that needs to retrieve HTML code from another web page B, possibly on another server.I know for a fact that the page I'm trying to reach will output a single string and I need to set a _javascript_ variable with that value. (For those curious, this other page is a cfm page where I create a string value based on the url params) Any ideas? TIA Nik _ [Todays Threads] [This Message] [Subscription] [Fast Unsubscribe] [User Settings]
RE: JavaScript: Retrieving Remote HTML
Check out IFRAMEs http://www.oreillynet.com/pub/a/_javascript_/2002/02/08/iframe.html http://www.oreillynet.com/pub/a/_javascript_/2002/02/08/iframe.html I haven't used them yet but it might be just what you're looking for. Mark -Original Message- From: Nikhil Madani [mailto:[EMAIL PROTECTED] Sent: Friday, March 12, 2004 3:36 PM To: CF-Talk Subject: Re: _javascript_: Retrieving Remote HTML That's definitely possible, but I surely cannot do an script src="" from within a _javascript_ functionis there a way I could assign the js variable (created on page B)to a global scope that I can then access inside any _javascript_ function on page A? One method would be to include Page B with a _javascript_ include (script src="" and have Page B put the string you're after into a _javascript_ variable.After the include, your code can see that variable as if it were on the same page. I'm sure there's more elegant solutions though. Shawn -Original Message- From: Nikhil Madani [mailto:[EMAIL PROTECTED] Sent: Friday, March 12, 2004 1:20 PM To: CF-Talk Subject: _javascript_: Retrieving Remote HTML I know this forum might not be the most relevant place for _javascript_ help, but anyway here is my problem: On a certain page A, I have a _javascript_ function that needs to retrieve HTML code from another web page B, possibly on another server.I know for a fact that the page I'm trying to reach will output a single string and I need to set a _javascript_ variable with that value. (For those curious, this other page is a cfm page where I create a string value based on the url params) Any ideas? TIA Nik _ _ [Todays Threads] [This Message] [Subscription] [Fast Unsubscribe] [User Settings]
RE: JavaScript: Retrieving Remote HTML
You can't make HTTP requests with _javascript_.However, you can use a hidden frame to do the dirty work.Create a hidden frame, set it's location to your URL, then check the content of it's document to get the output from the url (what you need) and set it to your variable. Just be careful, because setting the location is an asyncronous operation, so it'll return immediately.You'll have to use setTimout or setInterval to keep checking the hidden frame's document source to see when the request is finished processing. Cheers, barneyb -Original Message- From: Nikhil Madani [mailto:[EMAIL PROTECTED] Sent: Friday, March 12, 2004 12:36 PM To: CF-Talk Subject: Re: _javascript_: Retrieving Remote HTML That's definitely possible, but I surely cannot do an script src="" from within a _javascript_ functionis there a way I could assign the js variable (created on page B)to a global scope that I can then access inside any _javascript_ function on page A? One method would be to include Page B with a _javascript_ include (script src="" and have Page B put the string you're after into a _javascript_ variable.After the include, your code can see that variable as if it were on the same page. I'm sure there's more elegant solutions though. Shawn -Original Message- From: Nikhil Madani [mailto:[EMAIL PROTECTED] Sent: Friday, March 12, 2004 1:20 PM To: CF-Talk Subject: _javascript_: Retrieving Remote HTML I know this forum might not be the most relevant place for _javascript_ help, but anyway here is my problem: On a certain page A, I have a _javascript_ function that needs to retrieve HTML code from another web page B, possibly on another server.I know for a fact that the page I'm trying to reach will output a single string and I need to set a _javascript_ variable with that value. (For those curious, this other page is a cfm page where I create a string value based on the url params) Any ideas? TIA Nik _ [Todays Threads] [This Message] [Subscription] [Fast Unsubscribe] [User Settings]
Re: JavaScript: Retrieving Remote HTML
Is this the sort of thing you're looking for? http://jibbering.com/2002/4/httprequest.html -Bret -Original Message- From: Nikhil Madani [mailto:[EMAIL PROTECTED] I know this forum might not be the most relevant place for _javascript_ help, but anyway here is my problem: On a certain page A, I have a _javascript_ function that needs to retrieve HTML code from another web page B, possibly on another server.I know for a fact that the page I'm trying to reach will output a single string and I need to set a _javascript_ variable with that value. [Todays Threads] [This Message] [Subscription] [Fast Unsubscribe] [User Settings]
Re: JavaScript: Retrieving Remote HTML
Interesting..can't hurt to try it out! Only drawbacsk seems to be how different browsers handle the IFRAME element. Thanks Mark... (P.S- To others reading this message- I'd still be interested to know if you've got a different take on this issue...(no offense to you Mark)) Check out IFRAMEs http://www.oreillynet.com/pub/a/_javascript_/2002/02/08/iframe.html http://www.oreillynet.com/pub/a/_javascript_/2002/02/08/iframe.html I haven't used them yet but it might be just what you're looking for. Mark -Original Message- From: Nikhil Madani [mailto:[EMAIL PROTECTED] Sent: Friday, March 12, 2004 3:36 PM To: CF-Talk Subject: Re: _javascript_: Retrieving Remote HTML That's definitely possible, but I surely cannot do an script src="" from within a _javascript_ functionis there a way I could assign the js variable (created on page B)to a global scope that I can then access inside any _javascript_ function on page A? One method would be to include Page B with a _javascript_ include (script src="" and have Page B put the string you're after into a _javascript_ variable.After the include, your code can see that variable as if it were on the same page. I'm sure there's more elegant solutions though. _ _ [Todays Threads] [This Message] [Subscription] [Fast Unsubscribe] [User Settings]
Re: JavaScript: Retrieving Remote HTML
On Fri, 2004-03-12 at 12:19, Nikhil Madani wrote:
I know this forum might not be the most relevant place for _javascript_ help, but anyway here is my problem:
On a certain page A, I have a _javascript_ function that needs to retrieve
HTML code from another web page B, possibly on another server.I know for a fact that the page I'm trying to reach will output a single string and I need to set a _javascript_ variable with that value.
(For those curious, this other page is a cfm page where I create a string
value based on the url params)
Any ideas?
Newer _javascript_ can load xml files - which I had no idea, but man its
cool. If you can make the document you are getting an XML document you
can try this:
make a variable - where to get the xml
var xmlsource=http://www.yoursite.net/newsEngine/index.cfm?s=2;
then build an xml document loader (yes it works on firefox and mozilla -
I wouldnt know it if it didnt :-D )
if (window.ActiveXObject)
var xmlDoc = new ActiveXObject(Microsoft.XMLDOM)
else if (document.implementation document.implementation.createDocument)
var xmlDoc = document.implementation.createDocument(,doc,null)
then load it
if (typeof xmlDoc != undefined)
{
xmlDoc.load(xmlsource)
}
after that you can do normal DOM stuff on it i.e.
tickerobj = xmlDoc.getElementsByTagName(xmlticker)[0]
It's a really great trick I have used it several times. I dont think it
works back to netscape 4 (or windows 3.11 for that matter :)
I learned this by ripping apart this ticker script
http://www.dynamicdrive.com/dynamicindex2/xmlticker2.htm
Rememeber to set cfcontent type to text/xml.
Hope that helps
--
Rob [EMAIL PROTECTED]
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Re: JavaScript: Retrieving Remote HTML
I found this exact same page in my search too Will have to try it out. My only worry is the part where the author says...depends on version of MSXML installed. Now I'm not sure which versions of IE come with MSXML or if its a feature the client will have to download and install to access the page properly. Will research this a bit more. The other problem I have with what Barney and others have suggested with the IFRAME and FRAME thing is that, the IFRAME will load as soon as the client page loads up. The page I will be accessing using IFRAME sets a variable that is timestamp dependent. Finally when the _javascript_ function (which needs one of its variable set thru the IFRAME) is called (dependent on when the client clicks a link for example), the variable is stale. If I can tolerate an indefinite time delay, I would not jump thru all these hoops and simply call a script src="" with the src page returning the entire _javascript_ function. I hope that made some sense whatsoever :) Is this the sort of thing you're looking for? http://jibbering.com/2002/4/httprequest.html -Bret -Original Message- From: Nikhil Madani [mailto:[EMAIL PROTECTED] [Todays Threads] [This Message] [Subscription] [Fast Unsubscribe] [User Settings]
Re: JavaScript: Retrieving Remote HTML
On Fri, 2004-03-12 at 13:19, Nikhil Madani wrote: I found this exact same page in my search too Will have to try it out. My only worry is the part where the author says...depends on version of MSXML installed. If it helps any I've tested that script with: Win2k IE5 6 WinXP IE whatever WinXP Mozilla Linux Mozilla (1.~4) Linux Firefox (new) If you want can try it here if you'd like: http://www.thealgorithm.net/index.cfm That is a *highly* alpha site (mostly proof of concept and testing stuff) but you can see if it works for your set up. -- Rob [EMAIL PROTECTED] [Todays Threads] [This Message] [Subscription] [Fast Unsubscribe] [User Settings]
RE: JavaScript: Retrieving Remote HTML
Xml fetching and parsing all in one... that *is* cool.
Re IFRAME: the url for the iframe can be loaded dynamically at any time via
scripting, and does not require a visible screen element. At least that's
what I've read.
-Original Message-
From: Rob [mailto:[EMAIL PROTECTED]
Sent: Friday, March 12, 2004 5:05 PM
To: CF-Talk
Subject: Re: _javascript_: Retrieving Remote HTML
On Fri, 2004-03-12 at 12:19, Nikhil Madani wrote:
I know this forum might not be the most relevant place for _javascript_
help, but anyway here is my problem:
On a certain page A, I have a _javascript_ function that needs to retrieve
HTML code from another web page B, possibly on another server.I know for a
fact that the page I'm trying to reach will output a single string and I
need to set a _javascript_ variable with that value.
(For those curious, this other page is a cfm page where I create a string
value based on the url params)
Any ideas?
Newer _javascript_ can load xml files - which I had no idea, but man its
cool. If you can make the document you are getting an XML document you
can try this:
make a variable - where to get the xml
var xmlsource=http://www.yoursite.net/newsEngine/index.cfm?s=2;
then build an xml document loader (yes it works on firefox and mozilla -
I wouldnt know it if it didnt :-D )
if (window.ActiveXObject)
var xmlDoc = new ActiveXObject(Microsoft.XMLDOM)
else if (document.implementation document.implementation.createDocument)
var xmlDoc = document.implementation.createDocument(,doc,null)
then load it
if (typeof xmlDoc != undefined)
{
xmlDoc.load(xmlsource)
}
after that you can do normal DOM stuff on it i.e.
tickerobj = xmlDoc.getElementsByTagName(xmlticker)[0]
It's a really great trick I have used it several times. I dont think it
works back to netscape 4 (or windows 3.11 for that matter :)
I learned this by ripping apart this ticker script
http://www.dynamicdrive.com/dynamicindex2/xmlticker2.htm
Rememeber to set cfcontent type to text/xml.
Hope that helps
--
Rob [EMAIL PROTECTED]
_
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RE: JavaScript: Retrieving Remote HTML
So, besides the XML approach (which sounds VERY interesting), there are two methods suggested.I've done both myself, and personally prefer the IFrames. The first method would be something like so: script src=""> script x = js_string_set_in_pageB.cfm; /script The second would be something like so: script var TargetString document.getElementById(myIFrame).src = ""> /script And Page be would be something like this: ... some CF Code ... script window.parent.TargetString = #Some Value#; /script (Notice the variable is being set in the IFrame itself - this way you don't have to worry about the Asynchronous issues, and can even call functions on the parent page (which you sometimes have to do to make sure the values you are working with stay in the proper memory scope - it's a pain to refer to a variable that was set in a window/iframe that was then closed or changed). I would recommend one of the above two methods, but would also suggest exploring the XML. Hope this helps. Shawn -Original Message- From: Nikhil Madani [mailto:[EMAIL PROTECTED] Sent: Friday, March 12, 2004 1:55 PM To: CF-Talk Subject: Re: _javascript_: Retrieving Remote HTML Interesting..can't hurt to try it out! Only drawbacsk seems to be how different browsers handle the IFRAME element. Thanks Mark... (P.S- To others reading this message- I'd still be interested to know if you've got a different take on this issue...(no offense to you Mark)) Check out IFRAMEs http://www.oreillynet.com/pub/a/_javascript_/2002/02/08/iframe.html http://www.oreillynet.com/pub/a/_javascript_/2002/02/08/iframe.html I haven't used them yet but it might be just what you're looking for. Mark -Original Message- From: Nikhil Madani [mailto:[EMAIL PROTECTED] Sent: Friday, March 12, 2004 3:36 PM To: CF-Talk Subject: Re: _javascript_: Retrieving Remote HTML That's definitely possible, but I surely cannot do an script src="" from within a _javascript_ functionis there a way I could assign the js variable (created on page B)to a global scope that I can then access inside any _javascript_ function on page A? One method would be to include Page B with a _javascript_ include (script src="" and have Page B put the string you're after into a _javascript_ variable.After the include, your code can see that variable as if it were on the same page. I'm sure there's more elegant solutions though. _ _ _ [Todays Threads] [This Message] [Subscription] [Fast Unsubscribe] [User Settings]
RE: JavaScript: Retrieving Remote HTML
Is it just me or are a few parts of the MM site down (JRun Updater/Developers Home...) -- Peter Tilbrook ColdFusion Applications Developer ColdGen Internet Solutions Manager, ACT and Region ColdFusion Users Group - http://www.actcfug.com http://www.actcfug.com/ 4/73 Tharwa Road Queanbeyan, NSW, 2620 AUSTRALIA Telephone: +61-2-6284-2727 Mobile: +61-0439-401-823 E-mail: [EMAIL PROTECTED] World Wide Web: http:/www.coldgen.com/ [Todays Threads] [This Message] [Subscription] [Fast Unsubscribe] [User Settings]
Re: JavaScript: Retrieving Remote HTML
Cool folks...thanks a lotI'm going to getting working on all these ideas. Once again, thanks for your inputs [Todays Threads] [This Message] [Subscription] [Fast Unsubscribe] [User Settings]
