Re: [NTG-context] How to display JavaScript's values in ConTeXt
Thank you very much Peter.
I've inserted these code and when I open my pdf file in Acrobat
Reader, it crashed :(. But this is not a big deal, I modified it and
it's working, but it only tells me that:
do_digit(7) at page 0
and the field never changes. I guess I have to specify some link
between the JavaScript variant and the ConTeXt. Can you give me just
one simplest example that shows JavaScript code
var tempstring = "Yes";
in pdf file? Or you could think I'm very boring so can you just
suggest some materials that I can find these techniques?
From: Peter Rolf
Hello everybody,
I want to add a clock which shows the system time to a pdf file. And I have read the ``art-calc.pdf'' and ``mwidget-p.pdf'' to find some approaches but failed shamely. I am indeed new at ConTeXt and JavaScript. Before I'm shocked by ConTeXt, I used LaTeX for about 2 years, so I'm confused with the conventions between ConTeXt and LaTeX. My code is here:
I don't have the time right now for more than this short tip. If you work with JavaScript you should open the JaveScript Debugger (CTRL-J in Acrobat; in the Adobe Reader hit CTRL-K and check "Show console on errors and messages" in the JavaScript categorie) to see the warnings and error messages. You also should insert some log messages in your code. For example console.println("do_digit("+d+") at page "+[this.pageNum]); at the start of your function do_digit. This helps a lot to see what is going on. Greetings, Peter
---------------------------------------------------------------------------------- \setupinteraction[state=start]
\startJSpreamble functions used now function do_digit(d) { Stack[Level] += String(d); do_refresh(Level) } \stopJSpreamble
\startJScode{digit} do_digit(JS_S_1); \stopJScode
\definefield[Stack.1][line][Results][][
\setupfield [Results] [horizontal,frame] [width=fit, height=2cm, frame=on] [height=18pt,width=80pt,align=middle,frame=off] [height=18pt,width=80pt,color=red,align=right,style=type,frame=off]
\setupbuttons [background=infobutton]
\starttext
Click \button{7}[JS(digit{7})] will get \field[Stack.1]
\stoptext --------------------------------------------------------------------------------
I only copied these codes from "art-calc.pdf" so there must be some other critical concepts that I haven't realized. Please point them to me. Thanks _______________________________________________ ntg-context mailing list ntg-context@ntg.nl http://www.ntg.nl/mailman/listinfo/ntg-context
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Zhichu Chen