最小化到托盘，卡在循环中，python gtk

Question

蟒蛇：2.7.5

操作系统：linux、fedora 19

这是显示我遇到的问题的最小示例代码，代码的托盘部分被排除在外，因为它工作正常。

在终端中运行它，当按下最小化按钮时，它会进入show() 和hide() 循环

我认为显示它的最简单方法是让它在每次显示或隐藏时打印一个数字。

问题是：如何让它正常工作而不会陷入循环？

from gi.repository import Gtk, Gdk

class Win(Gtk.Window):
    def __init__(self):
        Gtk.Window.__init__(self)
        self.connect("delete-event", self.delete_event)
        #something to make it easier to see the loop
        self.num = 0
        self.connect('window-state-event', self.window_state_event_cb)

    def window_state_event_cb(self, widget, event):
       if event.changed_mask & Gdk.WindowState.ICONIFIED:
          if event.new_window_state & Gdk.WindowState.ICONIFIED:
             self.hide()
             print 'Window was minimized!'
          else:
             self.show()
             print 'Window was unminimized!'
          self.num += 1
          print(self.num)

    def delete_event(self,window,event):
        Gtk.main_quit()

if __name__=="__main__":
    win = Win()
    win.show_all()
    Gtk.main()

从http://faq.pygtk.org/index.py?req=edit&file=faq10.022.htp拼凑的代码

Answer 1

我有同样的问题，这对我有用。

def on_windowStateEvent(self, widget, event):
  if (event.changed_mask & Gdk.WindowState.ICONIFIED):
    if (event.new_window_state & Gdk.WindowState.ICONIFIED):
      # minimize visible widow. We hide the window to remove it
      # from the active tasks windows, a click the tray icon will
      # bring it back
      self.window.hide()
    else:
      # don't do anything here. The call from hide() above causes a 
      # new event that ends here. And calling show() now will result
      # in a loop
      pass

def statusIcon_activate(self, statusIcon):
  # restore the hidden window on a click on the tray icon
  self.window.deiconify()
  self.window.present() # present the window on the active desktop

...
self.window = Gtk.Window()
self.window.connect("window-state-event", self.on_windowStateEvent)
....
self.statusIcon = Gtk.StatusIcon()
self.statusIcon.connect("activate", self.statusIcon_activate)
...

还有一个简写形式：

def isEventIconify(event):
  return (event.changed_mask
          & event.new_window_state
          & Gdk.WindowState.ICONIFIED)

def on_windowStateEvent(self, widget, event):
  if isEventIconify(event):
    self.window.hide()