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more doc fixed; changing references of you to we for inclusion.

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This commit is contained in:
Danny Yoo 2011-08-29 16:49:33 -04:00
parent 84c7d457cb
commit 4eebe325fd
2 changed files with 20 additions and 12 deletions
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29
scribblings/cs19.scrbl
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@ -106,8 +106,8 @@ However, it can also be packaged with @filepath{whalesong}.
-rw-rw-r-- 1 dyoo nogroup 692213 Jun 7 18:00 hello.xhtml
}|
Running @tt{whalesong build} on a Racket program will produce a self-contained
@filepath{.xhtml} file. If you open this file in your favorite web browser,
you should see a triumphant message show on screen.
@filepath{.xhtml} file. If we open this file in our favorite web browser,
we should see a triumphant message show on screen.
@ -260,7 +260,7 @@ given @racket[delay], it will use that instead.
Tells @racket[big-bang] to update the world during simulated movement.
During the extent of a big-bang, a form widget will appear in the
@tt{document.body} to allow you to manually send location-changing
@tt{document.body} to allow us to manually send location-changing
events.
The optional @tech{event} argument will contain numbers for
@ -446,7 +446,7 @@ For example,
(define-resource my-whale-image-resource "humpback.png")
}|
}
As a convenience, you can also write
As a convenience, we can also write
@codeblock|{
#lang planet dyoo/whalesong
(require (planet dyoo/whalesong/resource))
@ -482,17 +482,20 @@ For example,
@declare-exporting/this-package[web-world]
For a web-world program, output written by normal side effects such as
@racket[printf] or @racket[display] is still written to the current
output port, whose default behavior appends to the end of
@tt{document.body}. You may want to either disable such printing or
direct the output to a particular element on the page. For such
purposes, use a combination of @racket[current-output-port] and
@racket[open-output-element].
For a web-world program, output is normally done by using
@racket[to-draw]. However, side effecting functions, such as
@racket[printf] or @racket[display], are still available, and are
allowed to continue to append to @tt{document.body}.
For example, in
We may want to disable such printing or redirect it to a particular
element on the page. For such purposes, use a combination of
@racket[current-output-port] and @racket[open-output-element] to
redirect the output of these side effect functions to somewhere else.
For example:
@codeblock|{
...
;; Redirect standard output to a div called "stdout-div".
(current-output-port (open-output-element "stdout-div"))
...
(big-bang ...
@ -502,12 +505,14 @@ For example, in
...)
}|
All subsequent I/O side effects after the call to
@racket[current-output-port] will be written out to the
@tt{stdout-div}, which can be easily styled with @tt{display: none} to
hide it from normal browser display.
@defproc[(open-output-element [id string]) output-port]{
Opens an output port that will be directed to write to the DOM element
whose id is @racket[id]. Note: writing to this port shouldn't fail,

3
web-world/examples/redirected/index.html
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@ -3,6 +3,9 @@
<body>
<p>The current counter is: <span id="counter">fill-me-in</span></p>
<p>There is content from the <tt>printf</tt> statements going into
the hidden div below:</p>
<!-- This div is hidden. -->
<div id="stdout"
style="border: 1px solid black; display: none " />