Source code for TermTk.TTkCore.TTkTerm.input_thread

# MIT License
#
# Copyright (c) 2021 Eugenio Parodi <ceccopierangiolieugenio AT googlemail DOT com>
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
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# furnished to do so, subject to the following conditions:
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# The above copyright notice and this permission notice shall be included in all
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# SOFTWARE.

__all__ = ['TTkInput']

import re
from time import time

import threading, queue

from ..drivers import TTkInputDriver

from TermTk.TTkCore.log import TTkLog
from TermTk.TTkCore.constant import TTkK
from TermTk.TTkCore.signal import pyTTkSignal
from TermTk.TTkCore.TTkTerm.term   import TTkTerm
from TermTk.TTkCore.TTkTerm.inputkey   import TTkKeyEvent
from TermTk.TTkCore.TTkTerm.inputmouse import TTkMouseEvent


[docs] class TTkInput: inputEvent = pyTTkSignal(TTkKeyEvent, TTkMouseEvent) pasteEvent = pyTTkSignal(str) _pasteBuffer = "" _bracketedPaste = False _readInput = None _inputThread = None _inputQueue = None _leftLastTime = 0 _midLastTime = 0 _rightLastTime = 0 _leftTap = 0 _midTap = 0 _rightTap = 0 _mouse_re = re.compile(r"\033\[<(\d+);(\d+);(\d+)([mM])") class Mouse(int): ON = 0x01 DIRECT = 0x02
[docs] @staticmethod def init(mouse:bool=False, directMouse:bool=False) -> None: TTkInput._readInput = TTkInputDriver() TTkInput._inputThread = threading.Thread(target=TTkInput._run) TTkInput._inputQueue = queue.Queue() TTkTerm.setMouse(mouse, directMouse)
[docs] @staticmethod def close() -> None: TTkTerm.setMouse(False, False) if TTkInput._readInput: TTkInput._readInput.close()
[docs] @staticmethod def stop() -> None: pass
[docs] @staticmethod def cont() -> None: if TTkInput._readInput: TTkInput._readInput.cont()
[docs] @staticmethod def start() -> None: TTkInput._inputThread.start() while inq := TTkInput._inputQueue.get(): kevt,mevt,paste = inq # Try to filter out the queued moved mouse events while (not kevt and not paste and mevt and mevt.evt == TTkK.Drag and not TTkInput._inputQueue.empty() ): mevtOld = mevt kevt, mevt, paste = TTkInput._inputQueue.get() if (kevt or paste or mevt and mevt.evt != TTkK.Drag): TTkInput.inputEvent.emit(kevt, mevtOld) break if kevt or mevt: TTkInput.inputEvent.emit(kevt, mevt) if paste: TTkInput.pasteEvent.emit(paste) TTkLog.debug("Close TTkInput")
@staticmethod def _run(): for stdinRead in TTkInput._readInput.read(): outq = TTkInput.key_process(stdinRead) TTkInput._inputQueue.put(outq) TTkInput._inputQueue.put(None) @staticmethod def _handleBracketedPaste(stdinRead:str): if stdinRead.endswith("\033[201~"): TTkInput._pasteBuffer += stdinRead[:-6] TTkInput._bracketedPaste = False # due to the CRNL methos (don't ask me why) the terminal # is substituting all the \n with \r _paste = TTkInput._pasteBuffer.replace('\r','\n') TTkInput._pasteBuffer = "" return None, None, _paste else: TTkInput._pasteBuffer += stdinRead return None, None, None
[docs] @staticmethod def key_process(stdinRead:str) -> None: if TTkInput._bracketedPaste: return TTkInput._handleBracketedPaste(stdinRead) mevt,kevt = None,None if not stdinRead.startswith("\033[<"): # Key Event kevt = TTkKeyEvent.parse(stdinRead) else: # Mouse Event m = TTkInput._mouse_re.match(stdinRead) if not m: # TODO: Return Error hex = [f"0x{ord(x):02x}" for x in stdinRead] TTkLog.error("UNHANDLED (mouse): "+stdinRead.replace("\033","<ESC>") + " - "+",".join(hex)) return None, None, None code = int(m.group(1)) x = int(m.group(2))-1 y = int(m.group(3))-1 state = m.group(4) key = TTkMouseEvent.NoButton evt = TTkMouseEvent.Move tap = 0 def _checkTap(lastTime, tap): if state=="M": t = time() if (t-lastTime) < 0.4: return t, tap+1 else: return t, 1 return lastTime, tap mod = TTkK.NoModifier if code & 0x10: code &= ~0x10 mod |= TTkK.ControlModifier if code & 0x08: code &= ~0x08 mod |= TTkK.AltModifier if code == 0x00: TTkInput._leftLastTime, TTkInput._leftTap = _checkTap(TTkInput._leftLastTime, TTkInput._leftTap) tap = TTkInput._leftTap key = TTkMouseEvent.LeftButton evt = TTkMouseEvent.Press if state=="M" else TTkMouseEvent.Release elif code == 0x01: TTkInput._midLastTime, TTkInput._midTap = _checkTap(TTkInput._midLastTime, TTkInput._midTap) tap = TTkInput._midTap key = TTkMouseEvent.MidButton evt = TTkMouseEvent.Press if state=="M" else TTkMouseEvent.Release elif code == 0x02: TTkInput._rightLastTime, TTkInput._rightTap = _checkTap(TTkInput._rightLastTime, TTkInput._rightTap) tap = TTkInput._rightTap key = TTkMouseEvent.RightButton evt = TTkMouseEvent.Press if state=="M" else TTkMouseEvent.Release elif code == 0x20: key = TTkMouseEvent.LeftButton evt = TTkMouseEvent.Drag elif code == 0x21: key = TTkMouseEvent.MidButton evt = TTkMouseEvent.Drag elif code == 0x22: key = TTkMouseEvent.RightButton evt = TTkMouseEvent.Drag elif code == 0x40: key = TTkMouseEvent.Wheel evt = TTkMouseEvent.Up elif code == 0x41: key = TTkMouseEvent.Wheel evt = TTkMouseEvent.Down elif code == 0x23: evt = TTkMouseEvent.Move elif code == 0x27: mod |= TTkK.ShiftModifier evt = TTkMouseEvent.Move mevt = TTkMouseEvent(x, y, key, evt, mod, tap, m.group(0).replace("\033", "<ESC>")) if kevt or mevt: return kevt, mevt, None if stdinRead.startswith("\033[200~"): TTkInput._bracketedPaste = True return TTkInput._handleBracketedPaste(stdinRead[6:]) hex = [f"0x{ord(x):02x}" for x in stdinRead] TTkLog.error("UNHANDLED: "+stdinRead.replace("\033","<ESC>") + " - "+",".join(hex))