tibia-client/modules/corelib/keyboard.lua

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-- @docclass
g_keyboard = {}
-- private functions
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function translateKeyCombo(keyCombo)
if not keyCombo or #keyCombo == 0 then return nil end
table.sort(keyCombo)
local keyComboDesc = ''
for k,v in pairs(keyCombo) do
local keyDesc = KeyCodeDescs[v]
if keyDesc == nil then return nil end
keyComboDesc = keyComboDesc .. '+' .. keyDesc
end
keyComboDesc = keyComboDesc:sub(2)
return keyComboDesc
end
local function getKeyCode(key)
for keyCode, keyDesc in pairs(KeyCodeDescs) do
if keyDesc:lower() == key:trim():lower() then
return keyCode
end
end
end
local function retranslateKeyComboDesc(keyComboDesc)
if keyComboDesc == nil then
error('Unable to translate key combo \'' .. keyComboDesc .. '\'')
end
local keyCombo = {}
for i,currentKeyDesc in ipairs(keyComboDesc:split('+')) do
for keyCode, keyDesc in pairs(KeyCodeDescs) do
if keyDesc:lower() == currentKeyDesc:trim():lower() then
table.insert(keyCombo, keyCode)
end
end
end
return translateKeyCombo(keyCombo)
end
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function determineKeyComboDesc(keyCode, keyboardModifiers)
local keyCombo = {}
if keyCode == KeyCtrl or keyCode == KeyShift or keyCode == KeyAlt then
table.insert(keyCombo, keyCode)
elseif KeyCodeDescs[keyCode] ~= nil then
if keyboardModifiers == KeyboardCtrlModifier then
table.insert(keyCombo, KeyCtrl)
elseif keyboardModifiers == KeyboardAltModifier then
table.insert(keyCombo, KeyAlt)
elseif keyboardModifiers == KeyboardCtrlAltModifier then
table.insert(keyCombo, KeyCtrl)
table.insert(keyCombo, KeyAlt)
elseif keyboardModifiers == KeyboardShiftModifier then
table.insert(keyCombo, KeyShift)
elseif keyboardModifiers == KeyboardCtrlShiftModifier then
table.insert(keyCombo, KeyCtrl)
table.insert(keyCombo, KeyShift)
elseif keyboardModifiers == KeyboardAltShiftModifier then
table.insert(keyCombo, KeyAlt)
table.insert(keyCombo, KeyShift)
elseif keyboardModifiers == KeyboardCtrlAltShiftModifier then
table.insert(keyCombo, KeyCtrl)
table.insert(keyCombo, KeyAlt)
table.insert(keyCombo, KeyShift)
end
table.insert(keyCombo, keyCode)
end
table.sort(keyCombo)
return translateKeyCombo(keyCombo)
end
local function onWidgetKeyDown(widget, keyCode, keyboardModifiers)
if keyCode == KeyUnknown then return false end
local keyComboDesc = determineKeyComboDesc(keyCode, keyboardModifiers)
local callback = widget.boundKeyDownCombos[keyComboDesc]
if callback then
callback()
return true
end
return false
end
local function onWidgetKeyPress(widget, keyCode, keyboardModifiers, autoRepeatTicks)
if keyCode == KeyUnknown then return false end
local keyComboDesc = determineKeyComboDesc(keyCode, keyboardModifiers)
local comboConf = widget.boundKeyPressCombos[keyComboDesc]
if comboConf and (autoRepeatTicks >= comboConf.autoRepeatDelay or autoRepeatTicks == 0) and comboConf.callback then
comboConf.callback()
return true
end
return false
end
local function connectKeyDownEvent(widget)
if widget.boundKeyDownCombos then return end
connect(widget, { onKeyDown = onWidgetKeyDown })
widget.boundKeyDownCombos = {}
end
local function connectKeyPressEvent(widget)
if widget.boundKeyPressCombos then return end
connect(widget, { onKeyPress = onWidgetKeyPress })
widget.boundKeyPressCombos = {}
end
-- public functions
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function g_keyboard.bindKeyDown(keyComboDesc, callback, widget)
widget = widget or rootWidget
connectKeyDownEvent(widget)
local keyComboDesc = retranslateKeyComboDesc(keyComboDesc)
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if widget.boundKeyDownCombos[keyComboDesc] then
pwarning('KeyDown event \'' .. keyComboDesc .. '\' redefined on widget ' .. widget:getId())
end
widget.boundKeyDownCombos[keyComboDesc] = callback
end
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function g_keyboard.bindKeyPress(keyComboDesc, callback, widget, autoRepeatDelay)
autoRepeatDelay = autoRepeatDelay or 500
widget = widget or rootWidget
connectKeyPressEvent(widget)
local keyComboDesc = retranslateKeyComboDesc(keyComboDesc)
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if widget.boundKeyPressCombos[keyComboDesc] then
pwarning('KeyPress event \'' .. keyComboDesc .. '\' redefined on widget ' .. widget:getId())
end
widget.boundKeyPressCombos[keyComboDesc] = { callback = callback, autoRepeatDelay = autoRepeatDelay }
widget:setAutoRepeatDelay(math.min(autoRepeatDelay, widget:getAutoRepeatDelay()))
end
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function g_keyboard.unbindKeyDown(keyComboDesc, widget)
widget = widget or rootWidget
if widget.boundKeyDownCombos == nil then return end
local keyComboDesc = retranslateKeyComboDesc(keyComboDesc)
if keyComboDesc then
widget.boundKeyDownCombos[keyComboDesc] = nil
end
end
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function g_keyboard.unbindKeyPress(keyComboDesc, widget)
widget = widget or rootWidget
if widget.boundKeyPressCombos == nil then return end
local keyComboDesc = retranslateKeyComboDesc(keyComboDesc)
if keyComboDesc then
widget.boundKeyPressCombos[keyComboDesc] = nil
end
end
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function g_keyboard.getModifiers()
return g_window.getKeyboardModifiers()
end
function g_keyboard.isKeyPressed(key)
if type(key) == 'string' then
key = getKeyCode(key)
end
return g_window.isKeyPressed(key)
end
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function g_keyboard.isCtrlPressed()
return bit32.band(g_window.getKeyboardModifiers(), KeyboardCtrlModifier) ~= 0
end
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function g_keyboard.isAltPressed()
return bit32.band(g_window.getKeyboardModifiers(), KeyboardAltModifier) ~= 0
end
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function g_keyboard.isShiftPressed()
return bit32.band(g_window.getKeyboardModifiers(), KeyboardShiftModifier) ~= 0
end