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more documentation sketching

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Danny Yoo 2011-08-29 09:45:59 -04:00
parent efc8dcdf9f
commit 272a264965
1 changed files with 22 additions and 14 deletions
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36
scribblings/cs19.scrbl
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@ -60,7 +60,9 @@ Created new window in existing browser session.
fermi ~/work/whalesong/examples $
}|
There are a few examples in the @filepath{whalesong/examples} directory.
There are examples in the @filepath{whalesong/examples} and
@filepath{whalesong/web-world/examples}.
@ -68,29 +70,39 @@ There are a few examples in the @filepath{whalesong/examples} directory.
@section{API}
@defmodule/this-package[web-world]
For the purposes of tour-guide, we'll be focusing on the
@racketmodname/this-package[web-world] library in Whalesong.
Like the big-bang in regular world, the callbacks are world-to-world
functions. One difference introduced by the web is the web page
itself: because the page itself is a source of state, it too will be
passed to callbacks.
This library presents a functional version of the DOM in the form of a
@emph{view}.
@defproc[(big-bang) world]{
@defproc[(big-bang [w world]
[h big-bang-handlder] ...) world]{
Start a big bang computation.
}
@defproc[(initial-view) big-bang-handler]{
@defproc[(initial-view [x any]) big-bang-handler]{
Provide an initial view for the big-bang.}
@defproc[(stop-when) big-bang-handler]{
@defproc[(stop-when ([w world] [dom view] -> boolean)) big-bang-handler]{
Tells @racket[big-bang] the predicate for terminating.
}
@defproc[(on-tick) big-bang-handler]{
@defproc[(on-tick ([w world] [v view] -> world)) big-bang-handler]{
Tells @racket[big-bang] to update the world during clock ticks.
}
@defproc[(to-draw) big-bang-handler]{
@defproc[(to-draw ([w world] [v view] -> view)) big-bang-handler]{
Tells @racket[big-bang] how to update the rendering of the world.
}
@subsection{Views}
@defproc[(->view [x any]) view]{
Coerse a value into a view. Common values for @racket[x] include resources.
}
@ -98,7 +110,8 @@ Coerse a value into a view. Common values for @racket[x] include resources.
@defproc[(view-focus [v view] [selector String]) view]{
Focuses the view on an element, given the @racket[selector].
Selectors are currently restricted to @litchar{#id} selectors for now.
Selectors are currently restricted to @litchar{#id} selectors for the
moment.
}
@ -161,11 +174,6 @@ Add the dom node @racket[d] as the last child of the focused node.}
@section{Including external resources}
@defmodule/this-package[resource]