upstream/ipython Files · IPython/deathrow/scitedirector.py

Start webbrowser in a thread. Prevents lockup with Chrome....

Start webbrowser in a thread. Prevents lockup with Chrome. If a user has Chrome set as their default browser (system-wide or via the `BROWSER` environment variable), opening the notebook hangs because the chrome call doesn't return immediately. This solves the issue by opening the browser in a thread. Note that there remains an issue where killing the notebook will kill Chrome if the Chrome session was started by us. I haven't found a way to work around that despite attempts by making the webbrowser.open() call in a subprocess.

Darren Dale - - Load All Authors

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             scitedirector.py
        
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      import win32api

      import win32gui

      import win32con

      import struct

      import array

      def findWindows():

          ret = []

          sdi = win32api.RegisterWindowMessage("SciTEDirectorInterface")

          w = win32gui.GetWindow(win32gui.GetDesktopWindow(), win32con.GW_CHILD)

          while w:

              res = win32gui.SendMessage(w, sdi, 0, 0)

              if res == sdi:

                  ret.append(w)

              w = win32gui.GetWindow(w, win32con.GW_HWNDNEXT)

          return ret

      def sendCommand(w, message):

          CopyDataStruct = "IIP"

          char_buffer = array.array('c', message)

          char_buffer_address = char_buffer.buffer_info()[0]

          char_buffer_size = char_buffer.buffer_info()[1]

          cds = struct.pack(CopyDataStruct, 0, char_buffer_size, char_buffer_address)

          win32gui.SendMessage(w, win32con.WM_COPYDATA, 0, cds)

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				import win32api
				import win32gui
				import win32con

				import struct
				import array

				def findWindows():
				ret = []
				sdi = win32api.RegisterWindowMessage("SciTEDirectorInterface")
				w = win32gui.GetWindow(win32gui.GetDesktopWindow(), win32con.GW_CHILD)
				while w:
				res = win32gui.SendMessage(w, sdi, 0, 0)
				if res == sdi:
				ret.append(w)
				w = win32gui.GetWindow(w, win32con.GW_HWNDNEXT)

				return ret

				def sendCommand(w, message):
				CopyDataStruct = "IIP"
				char_buffer = array.array('c', message)
				char_buffer_address = char_buffer.buffer_info()[0]
				char_buffer_size = char_buffer.buffer_info()[1]
				cds = struct.pack(CopyDataStruct, 0, char_buffer_size, char_buffer_address)
				win32gui.SendMessage(w, win32con.WM_COPYDATA, 0, cds)