Mac OSX 上 WxPython TaskBarIcon 的鼠标事件未触发

我们正在使用TaskBarIcon的WxPython 2.9 on Mac OS X 10.8.5，目前我们需要在用户单击应用程序的 TaskBarIcon 时捕获所有左键、右键和双击事件。我们遇到的问题是这些事件没有被触发。在这方面的任何帮助将非常感激。

这是我们正在使用的代码

import os
import sys
import wx

__author__ = 'Ammar Hasan'

CURRENT_ABSOLUTE_PATH = os.path.dirname(sys.argv[0])
TRAY_ICON = CURRENT_ABSOLUTE_PATH + "/resources/task_icon.ico"
TRAY_ICON_TOOLTIP = "UI Application"


ID_SHOW_OPTION = wx.NewId()
ID_EDIT_OPTION = wx.NewId()
ID_EXIT_OPTION = wx.ID_EXIT


class Icon(wx.TaskBarIcon):

    def __init__(self, parent, icon, tooltip):
        super(Icon, self).__init__(iconType=wx.TBI_CUSTOM_STATUSITEM)
        self.set_icon(icon, tooltip)
        self.parent = parent
        self.Bind(wx.EVT_TASKBAR_LEFT_DOWN, self.on_icon_click)
        self.Bind(wx.EVT_TASKBAR_RIGHT_DOWN, self.on_icon_click)
        self.Bind(wx.EVT_MENU, self.menu_item_click)

    def get_menu(self):
        menu = wx.Menu()
        menu.Append(ID_SHOW_OPTION, "&Show Option 1")
        menu.Append(ID_EDIT_OPTION, "&Edit Option 2")
        menu.AppendSeparator()
        menu.Append(ID_EXIT_OPTION, "E&xit")
        return menu

    def on_icon_click(self, event):
        if event:
            print "Event Triggered."
        menu = self.get_menu()
        self.PopupMenu(menu)

    def menu_item_click(self, event):
        if event.Id == ID_SHOW_OPTION:
            pass
        elif event.Id == ID_EDIT_OPTION:
            pass
        else:
            self.parent.quit()

    def make_icon(self, img):
        """
        The various platforms have different requirements for the
        icon size...
        """
        if "wxMSW" in wx.PlatformInfo:
            img = img.Scale(16, 16)
        elif "wxGTK" in wx.PlatformInfo:
            img = img.Scale(22, 22)
        # wxMac can be any size upto 128x128, so leave the source img alone....
        icon = wx.IconFromBitmap(img.ConvertToBitmap())
        return icon

    def set_icon(self, path, tool_tip):
        image = wx.Image(path)
        icon = self.make_icon(image)
        self.SetIcon(icon, tool_tip)

    # def CreatePopupMenu(self, event=None):
    #     self.on_icon_click(event)


class Frame(wx.Frame):

    def __init__(self, *args, **kwargs):
        super(Frame, self).__init__(*args, **kwargs)
        self.app = wx.GetApp()
        self.icon = Icon(self, TRAY_ICON, TRAY_ICON_TOOLTIP)

    def quit(self):
        self.app.ExitMainLoop()

if __name__ == "__main__":
    app = wx.App()
    frame = Frame(None)
    frame.Show(False)
    app.SetTopWindow(frame)
    app.MainLoop()

注意：我们不想使用创建弹出菜单（因为它仅在左键单击时触发），相反，我们想要捕获所有三个指定的鼠标事件。

任务栏图标的实现取决于操作系统。以下应用程序绑定了 wxPython 中提供的所有事件，以便您可以使用它进行测试。

import wx
from wx.lib.embeddedimage import PyEmbeddedImage

task = PyEmbeddedImage(
    "iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYAAABzenr0AAAABHNCSVQICAgIfAhkiAAAArxJ"
    "REFUWIXl1z9oJGUYx/HPrvvP3SVmZYkkatYmJ1wTUmhp5YFFQC3kCq8RbAXBTrCxMoXClVdc"
    "JwtiZxfRQgsRRNJsSBMxiPljdkl2WZPMMtmsxb17SfbmcicIjvg0v3mf9/fOvO+X531nhv97"
    "ZCYTq6urc9BsNm/DxsbGq9Dtdqfg7OwsG1SSDofDK/ODwWAA/X6/BNl/fEl/My4SmIKlpaWf"
    "oFarXYM4jnG+gkk9PT29sn+svV4PtNvtS8/+1wnkxhf5fP5D2NvbG0Kr1foE4jg+gVwudxNq"
    "tVoe2u325xP3WoC5ublbsLOz823Ifx90THt4cVAqCOQgjuOXYXd396XQd3TRODU1dQNGo9FW"
    "SH08ca93IYqiW6H9ZdA7V00gFQTOwvXbQY+SjMVi8Xk4ODj48SH9Dc6rHp3HmUCqCOw+xPME"
    "HB8fPwuDweCPJFO5XJ6FQqEAeuON/4hIBYFHxRyUSqUc9Hq9RFKVSuUZyGTuH66JtTQZ/wkC"
    "81Aul8ftnSRTtVp9mvN3A6LHmUD6CVQqlRc4r278nuQrFAoVyGbvr2mY5JuM9BNoNBqvQxRF"
    "4/PityRfPp/PcmkXVJN8y8vLL8Lm5uavpJnAwsLCezAajd4KqfHKB0n+TCZzCMViEdTr9Teh"
    "0+n8HCwjaLVad2Fra+sN0khgcXHxHTg8PLzN+TdhJpP5JViKQS+RyOfz69Dv91+B+fn5D2Bl"
    "ZeUaNJvNJ2Ftbe25MOSMFBB44L+g0WisQ7vdvg6zs7Nge3v7DkRR9H6wXjrpZmZmbkC9Xv8a"
    "Op17nwNRdM82ro1ut/spxHH8ESkg8EANlEqlH2B6evo6HB0ddSCKomawJO6C/f39b6BarX4B"
    "xWLxJmSz2RGcnJx8BXEcfxaGnJACAg/UAOpBl4OuB10LeurqeCroa0H/DPrdRBspIPAXawn9"
    "rf2GhSwAAAAASUVORK5CYII=")

class MainWindow(wx.Frame):
    def __init__(self, *args, **kwargs):
        wx.Frame.__init__(self, *args, **kwargs)

        self.panel = wx.Panel(self)

        self.tbicon = wx.TaskBarIcon()
        self.tbicon.SetIcon(task.GetIcon(), "Test")
        self.tbicon.Bind(wx.EVT_TASKBAR_LEFT_DOWN, self.LD)
        self.tbicon.Bind(wx.EVT_TASKBAR_LEFT_UP, self.LU)
        self.tbicon.Bind(wx.EVT_TASKBAR_RIGHT_DOWN, self.RD)
        self.tbicon.Bind(wx.EVT_TASKBAR_RIGHT_UP, self.RU)
        self.tbicon.Bind(wx.EVT_TASKBAR_LEFT_DCLICK, self.LDC)
        self.tbicon.Bind(wx.EVT_TASKBAR_RIGHT_DCLICK, self.LDC)

        # This is a synonym for either wx.EVT_TASKBAR_RIGHT_DOWN 
        # or UP depending on the platform, use this event macro 
        # to catch the event which should result in the menu being 
        # displayed on the current platform.
        self.tbicon.Bind(wx.EVT_TASKBAR_CLICK, self.Click)

        self.Bind(wx.EVT_CLOSE, self.Cleanup)

        self.Show()

    def Click(self, e):
        print("Click")
        e.Skip()

    def LD(self, e):
        print("LD")
        e.Skip()

    def LU(self, e):
        print("LU")
        e.Skip()

    def RD(self, e):
        print("RD")
        e.Skip()

    def RU(self, e):
        print("RU")
        e.Skip()

    def LDC(self, e):
        print("L-DClick")
        e.Skip()

    def RDC(self, e):
        print("R-DClick")
        e.Skip()

    def Cleanup(self, e):
        self.tbicon.Destroy()
        wx.Exit()

app = wx.App(False)
win = MainWindow(None)
app.MainLoop()

以 Windows 7 为例：

• Left Down 与 Left Up 一起发出，而不是单独发出
• Right Down 正确发出
• 单击是通过 Right Up 发出的（Windows 默认菜单）
• 双击效果很好

如果它在 OS X 上不起作用或者您得到的行为对于您的平台来说似乎是错误的，请考虑在以下位置报告错误：http://trac.wxwidgets.org/.