evan
d9bcc47772
main.lua mounts toast.node() over the app and ticks it from draw(), so any app can call ui.toast.show() without wiring an animation of its own.
48 lines
1.3 KiB
Lua
48 lines
1.3 KiB
Lua
-- Run: lua test/toast.lua
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-- The toast's phase machine: it slides in, holds, slides out and drops its node. The pixels
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-- are the tree's, so what is asserted here is the offset over time and the node's lifetime.
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package.path = "sdcard/.lua/lib/?.lua;lib/esp32-lua-api/lua/lib/?.lua;test/?.lua;" .. package.path
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local device = require("fake_device").install()
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local ui = require "ui"
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local toast = require "ui.toast"
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local scrolled
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tree.setScroll = function(_, _, y)
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scrolled = y
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end
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ui.mount(function()
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return ui.box { w = "fill", h = "fill", toast.node() }
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end)
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-- Nothing to advance until something is shown.
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toast.draw(16)
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assert(scrolled == nil)
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toast.show("saved", 1000)
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assert(device.labelled "saved", "the card is in the tree")
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toast.draw(90)
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local halfway = scrolled
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assert(halfway > 0 and halfway < 44, "slides part way up: " .. tostring(halfway))
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toast.draw(90)
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assert(scrolled == 44, "fully up before the hold")
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toast.draw(1000)
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assert(scrolled == 44, "holds")
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toast.draw(90)
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assert(scrolled > 0 and scrolled < 44, "slides back down: " .. tostring(scrolled))
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toast.draw(90)
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assert(not device.labelled "saved", "the card leaves the tree")
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-- A second toast reuses the machine rather than stacking.
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toast.show "again"
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toast.draw(180)
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assert(scrolled == 44 and device.labelled "again")
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print "ok"
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