76 lines
1.5 KiB
Lua
76 lines
1.5 KiB
Lua
local core = require "core"
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local command = {}
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command.map = {}
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local always_true = function() return true end
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function command.add(predicate, map)
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predicate = predicate or always_true
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if type(predicate) == "string" then
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predicate = require(predicate)
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end
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if type(predicate) == "table" then
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local class = predicate
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predicate = function() return core.active_view:is(class) end
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end
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for name, fn in pairs(map) do
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assert(not command.map[name], "command already exists: " .. name)
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command.map[name] = { predicate = predicate, perform = fn }
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end
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end
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local function capitalize_first(str)
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return str:sub(1, 1):upper() .. str:sub(2)
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end
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function command.prettify_name(name)
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return name:gsub(":", ": "):gsub("-", " "):gsub("%S+", capitalize_first)
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end
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function command.get_all_valid()
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local res = {}
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for name, cmd in pairs(command.map) do
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if cmd.predicate() then
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table.insert(res, name)
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end
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end
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return res
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end
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function command.is_valid(name, ...)
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return command.map[name] and command.map[name].predicate(...)
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end
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local function perform(name, ...)
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local cmd = command.map[name]
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if cmd and cmd.predicate(...) then
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cmd.perform(...)
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return true
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end
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return false
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end
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function command.perform(...)
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local ok, res = core.try(perform, ...)
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return not ok or res
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end
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function command.add_defaults()
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local reg = {
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"core", "root", "command", "doc", "findreplace",
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"files", "drawwhitespace", "dialog"
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}
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for _, name in ipairs(reg) do
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require("core.commands." .. name)
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end
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end
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return command
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