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