/*----------------------------------------------------------------------------*/
/*                                                                            */
/* Copyright (c) 1995, 2004 IBM Corporation. All rights reserved.             */
/* Copyright (c) 2005-2022 Rexx Language Association. All rights reserved.    */
/*                                                                            */
/* This program and the accompanying materials are made available under       */
/* the terms of the Common Public License v1.0 which accompanies this         */
/* distribution. A copy is also available at the following address:           */
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/* without modification, are permitted provided that the following            */
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/* notice, this list of conditions and the following disclaimer.              */
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/* of its contributors may be used to endorse or promote products             */
/* derived from this software without specific prior written permission.      */
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/* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT          */
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/**********************************************************************/
/*                                                                    */
/* MSInternetExplorer_stockPrice.rex: OLE Automation with ooRexx      */
/*                                                                    */
/* Get stock price from IBM internet page with Microsoft Internet     */
/* Explorer and store it in a REXX variable.                          */
/*                                                                    */
/**********************************************************************/

/* Get stock price from IBM internet page with MS IE and OLE */

say "Getting stock price from IBM Internet page."
say

Explorer = .OLEObject~new("InternetExplorer.Application")
Explorer~Visible = .true
Explorer~Navigate("http://www.ibm.com/investor/")

-- Wait for browser to load the page, with a time out.  If the page is not
-- loaded by the timout, then quit.
count = 0
do while Explorer~busy & count < 12
    do while Explorer~readyState <> 4 & count < 12
        j = SysSleep(.5)
        count += 1
    end
end

if Explorer~busy | Explorer~readyState <> 4 then do
    say 'Timed out waiting for page: http://www.ibm.com/investor/'
    say 'to load.  Going to quit.'
    Explorer~quit
    return 99
end

/* obtain text representation of the page */
doc = Explorer~document           -- DOM document
body = doc~body                   -- get BODY
textrange = body~CreateTextRange  -- get TextRange
text = textrange~Text             -- get the contents

/* extract stock price information, this is dependent on page not changing */
parse var text . "(NYSE)" '0d0a'x stockprice "0d0a"x .
if stockprice = "" then do
    stockprice = "<could not read stock price>"
    gotPrice = .false
end
else do
    gotPrice = .true
end

if gotPrice = .false then
do
   say "Press enter to continue ..."
   parse pull
end

/* end Explorer */
Explorer~quit

say "IBM stocks are at" stockprice"."
if \ gotPrice then say "Web page has likely changed format."