78 lines
2.8 KiB
Python
78 lines
2.8 KiB
Python
# Copyright (c) 2012, Matthias Schiffer <mschiffer@universe-factory.net>
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# 1. Redistributions of source code must retain the above copyright notice,
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# this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions and the following disclaimer in the documentation
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# and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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import ctypes
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import ctypes.util
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from gi.repository import Gdk, GdkX11
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XEvent_p = ctypes.c_void_p
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display_p = ctypes.c_void_p
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xid = ctypes.c_ulong
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x11_bool = ctypes.c_int
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x11_time = ctypes.c_ulong
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status = ctypes.c_int
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libX11 = ctypes.util.find_library('X11')
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if libX11 == None:
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raise OSError('libX11 could not be found.')
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libX11 = ctypes.cdll.LoadLibrary(libX11)
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libX11.XSendEvent.argtypes = display_p, xid, x11_bool, ctypes.c_long, XEvent_p
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libX11.XSendEvent.restype = status
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libX11.XSetSelectionOwner.argtypes = display_p, xid, xid, x11_time
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libX11.XSetSelectionOwner.restype = ctypes.c_int
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libX11.XGetSelectionOwner.argtypes = display_p, xid
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libX11.XGetSelectionOwner.restype = xid
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display = Gdk.Display.get_default()
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dpy_p = display_p(hash(GdkX11.X11Display.get_xdisplay(display)))
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atomPylockWindow = GdkX11.x11_get_xatom_by_name("PYLOCK_WINDOW")
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atomPylockActionLock = GdkX11.x11_get_xatom_by_name("PYLOCK_ACTION_LOCK")
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def getSelection():
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return libX11.XGetSelectionOwner(dpy_p, atomPylockWindow)
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def sendLockMessage():
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window = getSelection()
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if window == 0:
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return
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gdkWindow = GdkX11.X11Window.foreign_new_for_display(display, window)
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gdkWindow.show()
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display.sync()
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def acquireSelection(window):
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if getSelection() != 0:
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return False
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window.realize()
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xid = GdkX11.X11Window.get_xid(window.get_window())
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libX11.XSetSelectionOwner(dpy_p, atomPylockWindow, xid, 0)
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return (getSelection() == xid)
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