64 lines
1.5 KiB
Plaintext
64 lines
1.5 KiB
Plaintext
// Test state.
|
|
|
|
--- state-basic ---
|
|
#let s = state("hey", "a")
|
|
#let double(it) = 2 * it
|
|
|
|
#s.update(double)
|
|
#s.update(double)
|
|
$ 2 + 3 $
|
|
#s.update(double)
|
|
|
|
Is: #context s.get(),
|
|
Was: #context {
|
|
let it = query(math.equation).first()
|
|
s.at(it.location())
|
|
}.
|
|
|
|
--- state-multiple-calls-same-key ---
|
|
// Try same key with different initial value.
|
|
#context state("key", 2).get()
|
|
#state("key").update(x => x + 1)
|
|
#context state("key", 2).get()
|
|
#context state("key", 3).get()
|
|
#state("key").update(x => x + 1)
|
|
#context state("key", 2).get()
|
|
|
|
--- state-nested ---
|
|
#set page(width: 200pt)
|
|
#set text(8pt)
|
|
|
|
#let ls = state("lorem", lorem(1000).split("."))
|
|
#let loremum(count) = {
|
|
context ls.get().slice(0, count).join(".").trim() + "."
|
|
ls.update(list => list.slice(count))
|
|
}
|
|
|
|
#let fs = state("fader", red)
|
|
#let trait(title) = block[
|
|
#context text(fill: fs.get())[
|
|
*#title:* #loremum(1)
|
|
]
|
|
#fs.update(color => color.lighten(30%))
|
|
]
|
|
|
|
#trait[Boldness]
|
|
#trait[Adventure]
|
|
#trait[Fear]
|
|
#trait[Anger]
|
|
|
|
--- state-no-convergence ---
|
|
// Make sure that a warning is produced if the layout fails to converge.
|
|
// Warning: layout did not converge within 5 attempts
|
|
// Hint: check if any states or queries are updating themselves
|
|
#let s = state("s", 1)
|
|
#context s.update(s.final() + 1)
|
|
#context s.get()
|
|
|
|
--- state-at-no-context ---
|
|
// Test `state.at` outside of context.
|
|
// Error: 2-26 can only be used when context is known
|
|
// Hint: 2-26 try wrapping this in a `context` expression
|
|
// Hint: 2-26 the `context` expression should wrap everything that depends on this function
|
|
#state("key").at(<label>)
|