mirror of
https://github.com/koreader/koreader
synced 2024-10-31 21:20:20 +00:00
69a8ee83bb
This code still doesn't support different modifiers on keys, but I would rather refactor it in small steps first Current changes adds support for Kindle 3 left page keys reported by @houqp in issue #55
120 lines
3.0 KiB
Lua
120 lines
3.0 KiB
Lua
require "keys"
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Keydef = {
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keycode = nil,
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modifier = nil,
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descr = nil
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}
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function Keydef:_new(obj)
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-- obj definition
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obj = obj or {}
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setmetatable(obj, self)
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self.__index = self
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self.__tostring=Keydef.tostring
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return obj
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end
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function Keydef:new(keycode,modifier,descr)
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obj = Keydef:_new()
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obj.keycode = keycode
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obj.modifier = modifier
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obj.descr = descr
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return obj
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end
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function Keydef:display()
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return ((self.modifier and self.modifier.."+") or "")..(self.descr or "")
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end
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function Keydef:tostring()
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return ((self.modifier and self.modifier.."+") or "").."["..(self.keycode or "").."]"..(self.descr or "")
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end
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Command = {
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keydef = nil,
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keygroup = nil,
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func = nil,
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help = nil,
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order = nil
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}
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function Command:_new(obj)
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-- obj definition
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obj = obj or {}
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setmetatable(obj, self)
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self.__index = self
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self.__tostring=Command.tostring
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return obj
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end
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function Command:new(keydef, func, help, keygroup, order)
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obj = Command:_new()
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obj.keydef = keydef
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obj.func = func
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obj.help = help
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obj.keygroup = keygroup
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obj.order = order
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--print("creating command: ["..tostring(keydef).."] keygroup:["..(keygroup or "").."] help:"..help)
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return obj
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end
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function Command:tostring()
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return tostring(self.keydef)..": "..(self.help or "<no help defined>")
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end
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Commands = {
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map = {},
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size = 0
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}
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function Commands:add(keycode,modifier,keydescr,help,func)
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if type(keycode) == "table" then
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for i=1,#keycode,1 do
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local keydef = Keydef:new(keycode[i],modifier,keydescr)
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self:_addImpl(keydef,help,func)
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end
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else
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local keydef = Keydef:new(keycode,modifier,keydescr)
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self:_addImpl(keydef,help,func)
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end
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end
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function Commands:addGroup(keygroup,keys,help,func)
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for _k,keydef in pairs(keys) do
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self:_addImpl(keydef,help,func,keygroup)
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end
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end
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function Commands:_addImpl(keydef,help,func,keygroup)
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if keydef.modifier==MOD_ANY then
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self:addGroup(keygroup or keydef.descr,{Keydef:new(keydef.keycode,nil), Keydef:new(keydef.keycode,MOD_SHIFT), Keydef:new(keydef.keycode,MOD_ALT)},help,func)
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elseif keydef.modifier==MOD_SHIFT_OR_ALT then
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self:addGroup(keygroup or (MOD_SHIFT.."|"..MOD_ALT.."+"..(keydef.descr or "")),{Keydef:new(keydef.keycode,MOD_SHIFT), Keydef:new(keydef.keycode,MOD_ALT)},help,func)
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else
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local command = self.map[keydef]
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if command == nil then
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self.size = self.size + 1
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command = Command:new(keydef,func,help,keygroup,self.size)
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self.map[keydef] = command
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else
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command.func = func
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command.help = help
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command.keygroup = keygroup
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end
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end
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end
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function Commands:get(keycode,modifier)
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return self.map[Keydef:new(keycode, modifier)]
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end
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function Commands:getByKeydef(keydef)
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return self.map[keydef]
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end
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function Commands:new(obj)
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-- payload
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local mt = {}
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setmetatable(self.map,mt)
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mt.__index=function (table, key)
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return rawget(table,(key.modifier or "").."@#@"..(key.keycode or ""))
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end
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mt.__newindex=function (table, key, value)
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return rawset(table,(key.modifier or "").."@#@"..(key.keycode or ""),value)
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end
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-- obj definition
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obj = obj or {}
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setmetatable(obj, self)
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self.__index = self
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return obj
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end
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