65 lines
1.9 KiB
Lua
65 lines
1.9 KiB
Lua
 
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-- states/config_menu.lua — the options screens.
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--
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-- These do NOT use modules/slider.lua. Values are changed through
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-- config.increase / config.decrease on the focused option, so the slider patch
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-- never sees them and this descriptor has to report the value itself.
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--
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-- Three things move independently here: the tab (tabLeft/tabRight), the option
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-- (up/down), and the option's VALUE (left/right). All three must be announced,
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-- and the value especially -- pressing right with no feedback is indistinguishable
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-- from pressing a dead key.
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local config = require("models.config")
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local lastTab
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return {
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read = function(stateTable, menus)
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local activeTab = menus.getAnyUpvalue(stateTable, "activeTab")
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local selected = menus.getAnyUpvalue(stateTable, "currentSelectedOption")
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if type(activeTab) ~= "table" or type(selected) ~= "number" then
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return nil, nil
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end
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local options = activeTab.options
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if type(options) ~= "table" then
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return nil, nil
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end
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local option = options[selected]
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if not option then
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return nil, nil
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end
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local parts = {}
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if activeTab.header and activeTab.header ~= lastTab then
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lastTab = activeTab.header
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parts[#parts + 1] = activeTab.header
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end
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-- config.output returns (name, "< value >"). Strip the angle brackets:
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-- they are on-screen affordances for the left/right keys, not speech.
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local ok, name, value = pcall(config.output, option)
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if ok and name then
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parts[#parts + 1] = (name:gsub(":%s*$", ""))
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if value then
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parts[#parts + 1] = (value:gsub("^<%s*", ""):gsub("%s*>$", ""))
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end
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else
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parts[#parts + 1] = option.name or "?"
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end
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parts[#parts + 1] = selected .. " of " .. #options
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-- Key includes the value, so adjusting with left/right re-announces even
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-- though the focused option has not changed.
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local valueKey = ok and tostring(value) or "?"
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return table.concat(parts, ", "),
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table.concat({tostring(activeTab.header), tostring(selected), valueKey}, ":")
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end,
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}
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