evan
b9b620ad2b
Leaving an app was the app's own responsibility, so one that shipped without an exit could only be escaped with a reset. The bar now paints a back button into its leading square and the firmware treats that rect as home, acting on release so a press sliding into the app cancels. The app it returns to is /apps/home, which is what it is to the user. Card grids in home and settings centre left to right as a unit.
55 lines
1.6 KiB
Lua
55 lines
1.6 KiB
Lua
local ui = require("ui")
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local PAD, GAP = 12, 8
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local CARD_SIZE = 2 -- text scale inside a card; the name is the whole card
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local screen
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local function card(name, side)
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return ui.button{
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w = side, h = side,
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justify = "center",
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on_press = function() sys.launch("/apps/" .. name .. "/main.lua") end,
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ui.label(name, {size = CARD_SIZE, fit = side - 16}),
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}
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end
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function init()
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local names = {}
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for _, name in ipairs(fs.listDirs("/apps")) do
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if name ~= "home" then names[#names + 1] = name end
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end
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table.sort(names)
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local side, cols = ui.cardSide(math.max(#names, 1), PAD, GAP)
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-- Rows are filled before ui.box() sees them: the constructor moves a spec's array part
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-- into its children, so anything appended afterwards is never laid out.
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local rows = {}
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for _, name in ipairs(names) do
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local row = rows[#rows]
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if not row or #row >= cols then
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row = {}
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rows[#rows + 1] = row
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end
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row[#row + 1] = card(name, side)
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end
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-- Centred left to right as a unit, still top aligned: the gaps inside the grid are
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-- fixed, so the leftover width belongs beside the block, not to its last column.
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local items = {pad = PAD, gap = GAP, w = "fill", align = "center"}
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for _, row in ipairs(rows) do
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row.row, row.gap = true, GAP
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row.w = #row * side + (#row - 1) * GAP
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items[#items + 1] = ui.box(row)
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end
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if #rows == 0 then items[#items + 1] = ui.text("no apps in /apps", {color = ui.theme.muted}) end
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screen = ui.screen(ui.box(items))
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log.info("home ready")
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end
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function draw() screen:draw() end
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function on_touch_down(x, y) screen:down(x, y) end
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function on_touch_up(x, y) screen:up(x, y) end
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