Python利用pynput实现划词复制功能

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前言

本文参考了以下代码

Windows系统环境下Python脚本实现全局“划词复制”功能

from pynput import mouse import time import threading __DEBUG = False def log(msg,debug=False): if __DEBUG or debug: print(msg) class MouseMonitor(): __press_time = 0 __press_double_state = False __move = (0,0) def __init__(self,on_selected=None): if on_selected: self.on_selected = on_selected else: self.on_selected = self.on_selected self.listener = mouse.Listener(on_move=self.on_move,on_click=self.on_click) self.listener.start() self.listener.join() def on_selected(msg): print('selected "%s" has been copied.' % (msg,)) def on_move(self,x,y): if self.__press_time == 0: self.__move = (x,y) # log(self.__press_time,time.time()) # log('Pointer moved to {0}'.format((x,y))) def on_click(self,x,y,button,pressed): if str(button) == 'Button.left': if pressed: self.on_pressed(x,y) else: self.on_released(x,y) def on_pressed(self,x,y): if self.__press_double_state: # double click # self.__press_double_state = False if not self.check_not_time_out(self.__press_time, time.time(),0.4): # miss double click log('double1 click timeout and reset then') self.reset() self.__press_time = time.time() else: # single click self.__press_time = time.time() # self.__press_double_state = False def on_released(self,x,y): if self.__press_double_state: # double click if self.check_not_time_out(self.__press_time, time.time(),0.8): log('double click: %s' % (self.get_copy())) self.on_selected(self.get_copy()) self.__press_double_state = False else: log('double2 click timeout and reset then') self.reset() else: if self.check_not_time_out(self.__press_time, time.time()): log('double click maybe') self.__press_double_state = True threading.Timer(0.5, self.timeout_handler).start() # wait timeout to reset elif not self.check_not_time_out(self.__press_time, time.time(),1): if self.__move != (0,0): self.on_selected(self.get_copy()) log('selected: %s' % (self.get_copy(),)) self.reset() else: log('reset state') self.reset() def get_copy(self): import win32clipboard as wc import win32con def trigger_copy(): from pynput.keyboard import Key,Controller key = Controller() with key.pressed(Key.ctrl): key.press('c') key.release('c') time.sleep(0.1) # wait for ctrl+c valid trigger_copy() msg = '' try: wc.OpenClipboard() msg = wc.GetClipboardData(win32con.CF_UNICODETEXT) wc.CloseClipboard() except TypeError: log('Clipboard Content is TypeError.') return msg def reset(self): self.__press_time = 0 self.__press_double_state = False self.__move = (0,0) def timeout_handler(self): self.reset() log('timeout reset state') def check_not_time_out(self,old,new,delta=0.2): if(new - old > delta): # time delta > 0.2s return False else: return True def printf(msg): log('copy content:'+msg,True) # log('x = {0} , y = {1}'.format(x,y)) if __name__ == '__main__': mm = MouseMonitor(printf)

pynput库的官方文档

实现代码

参考的博客实现了划词复制,但是看了下他的代码写的有点复制混乱,监听准确率并不高且不太容易理解。

实际监听鼠标的划词操作逻辑很简单:

记录下鼠标左键按下时的位置,当鼠标左键松开时,记录下鼠标左键松开的位置,如果按下的位置和松开的位置不一致,说明鼠标正在划词。

from pynput.mouse import Listener, Button from pynput.keyboard import Key, Controller class AutoCopier(): __press_xy = (0, 0)  # 私有变量 鼠标左键按下时的位置 def __init__(self): self.keyboard = Controller()                     # 初始化键盘控制器 self.listener = Listener(on_click=self.on_click) # 初始化鼠标监听器 self.listener.start()                            # 开启鼠标监听器线程 # 点击函数 def on_click(self, x, y, button, pressed): if button == Button.left:             # 左键点击 if pressed:                       # 左键按下 self.__press_xy = (x, y)      # 记录当前鼠标位置 else:                             # 左键松开 if self.__press_xy != (x, y): # 按下位置和松开位置不一致 self.copy()               # 说明操作是划词,执行复制函数 # 复制函数 def copy(self): with self.keyboard.pressed(Key.ctrl): # 按下ctrl,with语句结束后自动松开 self.keyboard.press('c')          # 按下c self.keyboard.release('c')        # 松开c # 等待线程终止 def wait_to_stop(self): self.listener.join() # for test if __name__ == '__main__': at = AutoCopier() at.wait_to_stop()

知识点补充

1.pynput是什么

官方说法:“他可以控制和监听我们的输入设备,目前支持鼠标和键盘的控制与监听;因为我只使用了设备的控制 至于监听并没作深入了解 文章也不设计”

2.使用步骤

安装pynput模块

pip install pynput #使用ctrl+v 快捷粘贴时候用到 pip install pyperclip 

键盘控制

如下:

from pynput.keyboard import Key, Controller as c_keyboard from pynput.mouse import Button, Controller as c_mouse keyboard = c_keyboard() #字符与数字 keyboard.press('a') keyboard.release('a') keyboard.press('A') keyboard.release('A') keyboard.press('1') keyboard.release('1') #非数字与字母键 详情: https://pynput.readthedocs.io/en/latest/keyboard.html#pynput.keyboard.Key keyboard.press(Key.enter); keyboard.release(Key.enter); #组合 ##全选 keyboard.press(Key.ctrl) keyboard.press('a') time.sleep(2) keyboard.release('a') keyboard.release(Key.ctrl) ###或者 with keyboard .pressed(Key.ctrl): keyboard.press('a') keyboard.release('a') ##复制 seller_nick = 'www.baidu.com/a.php?a=a&b=2' pyperclip.copy('https://'+seller_nick.replace('amp;','')) ##粘贴 keyboard.press(Key.ctrl) keyboard.press('v') time.sleep(1) keyboard.release('v') keyboard.release(Key.ctrl) ##回车 keyboard.press(Key.enter); keyboard.release(Key.enter); 

鼠标控制

如下:

from pynput.keyboard import Key, Controller as c_keyboard from pynput.mouse import Button, Controller as c_mouse mouse= c_mouse() #点击 ##双击 mouse.click(Button.left, 2) ##按下右键 mouse.press(Button.right) ##释放右键 mouse.release(Button.right) #鼠标坐标 print(mouse.position) ##x轴坐标 print(mouse.position[0]) ##y轴坐标 print(mouse.position[1]) #移动 ##移动到绝对坐标 mouse.position = (400, 38) ##相对当前坐标移动 mouse.move(300, 2) #滑动 mouse.press(Button.left) mouse.move(300, 2) mouse.release(Button.left) 

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