Slideshow/layout library for use with the Haste compiler. Create presentations and slideshows and embed them into web applications, or embed web applications into your presentations and slideshows.
The library builds on the concepts of slides and decks. A slide is a list of elements placed according to some layout, and a deck is a list of slides compiled into the DOM elements, CSS, and executable code required to display a slideshow.
A simple example of a slide would be the Hello World slide.
Note that OverloadedStrings is used to create text slides from string
literals; purists may want to avoid this and instead use the markup function
from Haste.Deck.
{-# LANGUAGE OverloadedStrings #-}
import Haste.DOM (appendChild, documentBody)
import Haste.Deck
one :: Slide
one = "Hello, world!"
We can add some formatting to make it more interesting:
two :: Slide
two = centered . color "blue" . fontSize (Pt 48) $ one
We can also place the slide in relation to other elements:
three :: Slide
three = two `above` image "hello.jpg"
Add some Markdown (or rather, a subset of Markdown) to spice it up further:
four :: Slide
four = "This text is to the *left*!" `leftOf` three
Since we're all the way at the end of our presentation, maybe the presenter wants an easy way to skip back to a previous slide? We can do this by using a hyperlink to the slide we want to jump to. Of course, we could jump forward as well.
five :: Slide
five = "Go back to [slide three](#3)!"
Sometimes, we don't want all sub-slides to take up equal space. For instance, we may want to reserve 90% of the available screen space for content and use the remaining 10% for a heading.
six :: Slide
six = two `above` sized 0.9 three
When we are done, we can create a deck out of our slides and display it.
In this example we're using the default configuration plus the pan transition
animation, but this is user configurable.
main :: IO ()
main = present_ def {transition = pan} [one, two, three, four, five, six]
Arrow keys, page up/down and left/right swipe gestures switch between slides; home and end keys go to the first and the last slide respectively.
Of course, custom slide controls are available as well. Run cabal haddock and
see for yourself.