tibia-client/modules/client_terminal/terminal.lua

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-- configs
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local LogColors = { [LogDebug] = 'pink',
[LogInfo] = 'white',
[LogWarning] = 'yellow',
[LogError] = 'red' }
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local MaxLogLines = 128
local MaxHistory = 1000
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local oldenv = getfenv(0)
setfenv(0, _G)
commandEnv = runinsandbox('commands')
setfenv(0, oldenv)
-- private variables
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local terminalWindow
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local terminalButton
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local logLocked = false
local commandTextEdit
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local terminalBuffer
local commandHistory = { }
local currentHistoryIndex = 0
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local poped = false
local oldPos
local oldSize
local firstShown = false
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local flushEvent
local cachedLines = {}
local disabled = false
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-- private functions
local function navigateCommand(step)
local numCommands = #commandHistory
if numCommands > 0 then
currentHistoryIndex = math.min(math.max(currentHistoryIndex + step, 0), numCommands)
if currentHistoryIndex > 0 then
local command = commandHistory[numCommands - currentHistoryIndex + 1]
commandTextEdit:setText(command)
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commandTextEdit:setCursorPos(-1)
else
commandTextEdit:clearText()
end
end
end
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local function completeCommand()
local cursorPos = commandTextEdit:getCursorPos()
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if cursorPos == 0 then return end
local commandBegin = commandTextEdit:getText():sub(1, cursorPos)
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local possibleCommands = {}
-- create a list containing all globals
local allVars = table.copy(_G)
table.merge(allVars, commandEnv)
-- match commands
for k,v in pairs(allVars) do
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if k:sub(1, cursorPos) == commandBegin then
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table.insert(possibleCommands, k)
end
end
-- complete command with one match
if #possibleCommands == 1 then
commandTextEdit:setText(possibleCommands[1])
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commandTextEdit:setCursorPos(-1)
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-- show command matches
elseif #possibleCommands > 0 then
print('>> ' .. commandBegin)
-- expand command
local expandedComplete = commandBegin
local done = false
while not done do
cursorPos = #commandBegin+1
if #possibleCommands[1] < cursorPos then
break
end
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expandedComplete = commandBegin .. possibleCommands[1]:sub(cursorPos, cursorPos)
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for i,v in ipairs(possibleCommands) do
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if v:sub(1, #expandedComplete) ~= expandedComplete then
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done = true
end
end
if not done then
commandBegin = expandedComplete
end
end
commandTextEdit:setText(commandBegin)
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commandTextEdit:setCursorPos(-1)
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for i,v in ipairs(possibleCommands) do
print(v)
end
end
end
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local function doCommand()
local currentCommand = commandTextEdit:getText()
executeCommand(currentCommand)
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if commandTextEdit then
commandTextEdit:clearText()
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end
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return true
end
local function onLog(level, message, time)
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if disabled then return end
-- avoid logging while reporting logs (would cause a infinite loop)
if logLocked then return end
logLocked = true
addLine(message, LogColors[level])
logLocked = false
end
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-- public functions
function init()
terminalWindow = g_ui.displayUI('terminal')
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terminalWindow:setVisible(false)
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terminalWindow.onDoubleClick = popWindow
terminalButton = modules.client_topmenu.addLeftButton('terminalButton', tr('Terminal') .. ' (Ctrl + T)', '/images/topbuttons/terminal', toggle)
g_keyboard.bindKeyDown('Ctrl+T', toggle)
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commandHistory = g_settings.getList('terminal-history')
commandTextEdit = terminalWindow:getChildById('commandTextEdit')
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g_keyboard.bindKeyPress('Up', function() navigateCommand(1) end, commandTextEdit)
g_keyboard.bindKeyPress('Down', function() navigateCommand(-1) end, commandTextEdit)
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g_keyboard.bindKeyPress('Ctrl+C',
function()
if commandTextEdit:hasSelection() or not terminalSelectText:hasSelection() then return false end
g_window.setClipboardText(terminalSelectText:getSelection())
return true
end, commandTextEdit)
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g_keyboard.bindKeyDown('Tab', completeCommand, commandTextEdit)
g_keyboard.bindKeyDown('Enter', doCommand, commandTextEdit)
g_keyboard.bindKeyDown('Escape', hide, terminalWindow)
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terminalBuffer = terminalWindow:getChildById('terminalBuffer')
terminalSelectText = terminalWindow:getChildById('terminalSelectText')
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terminalSelectText.onDoubleClick = popWindow
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terminalSelectText.onMouseWheel = function(a,b,c) terminalBuffer:onMouseWheel(b,c) end
terminalBuffer.onScrollChange = function(self, value) terminalSelectText:setTextVirtualOffset(value) end
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g_logger.setOnLog(onLog)
g_logger.fireOldMessages()
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end
function terminate()
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g_settings.setList('terminal-history', commandHistory)
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removeEvent(flushEvent)
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if poped then
oldPos = terminalWindow:getPosition()
oldSize = terminalWindow:getSize()
end
local settings = {
size = oldSize,
pos = oldPos,
poped = poped
}
g_settings.setNode('terminal-window', settings)
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g_keyboard.unbindKeyDown('Ctrl+T')
g_logger.setOnLog(nil)
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terminalWindow:destroy()
terminalButton:destroy()
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commandEnv = nil
end
function hideButton()
terminalButton:hide()
end
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function popWindow()
if poped then
oldPos = terminalWindow:getPosition()
oldSize = terminalWindow:getSize()
terminalWindow:fill('parent')
terminalWindow:setOn(false)
terminalWindow:getChildById('bottomResizeBorder'):disable()
terminalWindow:getChildById('rightResizeBorder'):disable()
terminalWindow:getChildById('titleBar'):hide()
terminalWindow:getChildById('terminalScroll'):setMarginTop(0)
terminalWindow:getChildById('terminalScroll'):setMarginBottom(0)
terminalWindow:getChildById('terminalScroll'):setMarginRight(0)
poped = false
else
terminalWindow:breakAnchors()
terminalWindow:setOn(true)
local size = oldSize or { width = g_window.getWidth()/2, height = g_window.getHeight()/2 }
terminalWindow:setSize(size)
local pos = oldPos or { x = (g_window.getWidth() - terminalWindow:getWidth())/2, y = (g_window.getHeight() - terminalWindow:getHeight())/2 }
terminalWindow:setPosition(pos)
terminalWindow:getChildById('bottomResizeBorder'):enable()
terminalWindow:getChildById('rightResizeBorder'):enable()
terminalWindow:getChildById('titleBar'):show()
terminalWindow:getChildById('terminalScroll'):setMarginTop(18)
terminalWindow:getChildById('terminalScroll'):setMarginBottom(1)
terminalWindow:getChildById('terminalScroll'):setMarginRight(1)
terminalWindow:bindRectToParent()
poped = true
end
end
function toggle()
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if terminalWindow:isVisible() then
hide()
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else
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if not firstShow then
local settings = g_settings.getNode('terminal-window')
if settings then
if settings.size then oldSize = size end
if settings.pos then oldPos = settings.pos end
if settings.poped then popWindow() end
end
firstShown = true
end
show()
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end
end
function show()
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terminalWindow:show()
terminalWindow:raise()
terminalWindow:focus()
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end
function hide()
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terminalWindow:hide()
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end
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function disable()
terminalButton:hide()
g_keyboard.unbindKeyDown('Ctrl+T')
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disabled = true
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end
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function flushLines()
local numLines = terminalBuffer:getChildCount() + #cachedLines
local fulltext = terminalSelectText:getText()
for _,line in pairs(cachedLines) do
-- delete old lines if needed
if numLines > MaxLogLines then
local len = #terminalBuffer:getChildByIndex(1):getText()
terminalBuffer:getChildByIndex(1):destroy()
fulltext = string.sub(fulltext, len)
end
local label = g_ui.createWidget('TerminalLabel', terminalBuffer)
label:setId('terminalLabel' .. numLines)
label:setText(line.text)
label:setColor(line.color)
fulltext = fulltext .. '\n' .. line.text
end
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terminalSelectText:setText(fulltext)
cachedLines = {}
flushEvent = nil
end
function addLine(text, color)
if not flushEvent then
flushEvent = scheduleEvent(flushLines, 10)
end
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table.insert(cachedLines, {text=text, color=color})
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end
function executeCommand(command)
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if command == nil or #command == 0 then return end
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-- add command line
addLine("> " .. command, "#ffffff")
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-- reset current history index
currentHistoryIndex = 0
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-- add new command to history
if #commandHistory == 0 or commandHistory[#commandHistory] ~= command then
table.insert(commandHistory, command)
if #commandHistory > MaxHistory then
table.remove(commandHistory, 1)
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end
end
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-- detect and convert commands with simple syntax
local realCommand
if string.sub(command, 1, 1) == '=' then
realCommand = 'print(' .. string.sub(command,2) .. ')'
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else
realCommand = command
end
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local func, err = loadstring(realCommand, "@")
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-- detect terminal commands
if not func then
local command_name = command:match('^([%w_]+)[%s]*.*')
if command_name then
local args = string.split(command:match('^[%w]+[%s]*(.*)'), ' ')
if commandEnv[command_name] and type(commandEnv[command_name]) == 'function' then
func = function() modules.client_terminal.commandEnv[command_name](unpack(args)) end
elseif command_name == command then
addLine('ERROR: command not found', 'red')
return
end
end
end
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-- check for syntax errors
if not func then
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addLine('ERROR: incorrect lua syntax: ' .. err:sub(5), 'red')
return
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end
-- setup func env to commandEnv
setfenv(func, commandEnv)
-- execute the command
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local ok, ret = pcall(func)
if ok then
-- if the command returned a value, print it
if ret then print(ret) end
else
addLine('ERROR: command failed: ' .. ret, 'red')
end
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end
function clear()
terminalBuffer:destroyChildren()
terminalSelectText:setText('')
end