pyobjc实现鼠标事件模拟（Mac）

既然pyobjc能够使用cocoa提供的这么多库函数，那对我们有没有一些实际的作用呢？联想到在自动化测试中，appscript有些操作目前还是无法实现的，例如：

无法实现点击屏幕任意坐标（appscript中未找到类似的api）

无法双击某个控件（通过appscript两次调用控件的click方法是不生效的）

无法实现控件上右键……

现在，这些appscript无法完成的操作，通过pyobjc又找到了另一条实现的途径，我们可以借助pyobjc，来构造并触发我们需要的鼠标事件，cocoa的 CoreGraphics库中就包含了构造所有鼠标事件的方法，在苹果开发者网站上了解了这些函数的使用方式后，实现一个fakemouse，能否完成的操作有：点击屏幕任意坐标、在任意坐标双击、在任意坐标鼠标右键、移动鼠标至某个坐标、鼠标拖拽等。具体实现代码如下：

 

#!/usr/bin/python'''Created on 2013-8-30@author: maricoliu'''import sysimport timefrom Quartz.CoreGraphics import *  def _mouseEvent(type, posx, posy):    theEvent = CGEventCreateMouseEvent(None, type, (posx,posy), kCGMouseButtonLeft)    CGEventPost(kCGHIDEventTap, theEvent)    def mouseMove(posx, posy):    _mouseEvent(kCGEventMouseMoved, posx, posy)    def mouseClickDown(posx, posy):    _mouseEvent(kCGEventLeftMouseDown, posx, posy)    def mouseClickUp(posx, posy):    _mouseEvent(kCGEventLeftMouseUp, posx, posy)    def mouseDrag(posx, posy):    _mouseEvent(kCGEventLeftMouseDragged, posx, posy)    def mouseClick(posx, posy):    '''perform a left click'''    _mouseEvent(kCGEventLeftMouseDown, posx, posy)    _mouseEvent(kCGEventLeftMouseUp, posx, posy)    def mouseRightClick(posx, posy):    theEvent = CGEventCreateMouseEvent(None, kCGEventRightMouseDown, (posx,posy), kCGMouseButtonRight)    CGEventPost(kCGHIDEventTap, theEvent)    theEvent2 = CGEventCreateMouseEvent(None, kCGEventRightMouseUp, (posx,posy), kCGMouseButtonRight)    CGEventPost(kCGHIDEventTap, theEvent2)def mouseDoubleClick(posx, posy):    '''perfrom a double left click'''    theEvent = CGEventCreateMouseEvent(None, kCGEventLeftMouseDown, (posx,posy), kCGMouseButtonLeft);      CGEventPost(kCGHIDEventTap, theEvent);      CGEventSetType(theEvent, kCGEventLeftMouseUp);      CGEventPost(kCGHIDEventTap, theEvent);     CGEventSetIntegerValueField(theEvent, kCGMouseEventClickState, 2);       CGEventSetType(theEvent, kCGEventLeftMouseDown);      CGEventPost(kCGHIDEventTap, theEvent);      CGEventSetType(theEvent, kCGEventLeftMouseUp);     CGEventPost(kCGHIDEventTap, theEvent);def mouseScroll(movement=30, direction=1):      '''    @param movement: lines to scroll, Integer     @param direction: scroll up or scroll down, 1:scroll up, -1:scroll down     '''          for i in range(movement):        theEvent = CGEventCreateScrollWheelEvent(None, kCGScrollEventUnitLine, 1, direction)        CGEventPost(kCGHIDEventTap, theEvent)        time.sleep(0.02)           #CGPostScrollWheelEvent(1, 5)if __name__ == '__main__':    ourEvent = CGEventCreate(None);    currentpos=CGEventGetLocation(ourEvent); # Save current mouse position    time.sleep(1);    for i in range(20):        mouseScroll(40, 1)        mouseScroll(40, -1)        # mouseclick(1610, 215)    # mousedoubleclick(1697, 561)    time.sleep(1);    #mouseMove(int(currentpos.x),int(currentpos.y)); # Restore mouse position