107 lines
3.4 KiB
Python
107 lines
3.4 KiB
Python
# Copyright (C) 2007, Red Hat, Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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import gtk
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import gobject
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import wnck
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class EventArea(gobject.GObject):
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__gsignals__ = {
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'enter': (gobject.SIGNAL_RUN_FIRST,
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gobject.TYPE_NONE, ([])),
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'leave': (gobject.SIGNAL_RUN_FIRST,
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gobject.TYPE_NONE, ([]))
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}
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def __init__(self):
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gobject.GObject.__init__(self)
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self._windows = []
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self._hover = False
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right = gtk.gdk.screen_width() - 1
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bottom = gtk.gdk.screen_height() -1
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invisible = self._create_invisible(0, 0, 1, 1)
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self._windows.append(invisible)
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invisible = self._create_invisible(right, 0, 1, 1)
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self._windows.append(invisible)
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invisible = self._create_invisible(0, bottom, 1, 1)
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self._windows.append(invisible)
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invisible = self._create_invisible(right, bottom, 1, 1)
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self._windows.append(invisible)
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screen = wnck.screen_get_default()
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screen.connect('active-window-changed',
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self._active_window_changed_cb)
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def _create_invisible(self, x, y, width, height):
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invisible = gtk.Invisible()
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invisible.connect('enter-notify-event', self._enter_notify_cb)
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invisible.connect('leave-notify-event', self._leave_notify_cb)
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invisible.drag_dest_set(0, [], 0)
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invisible.connect('drag_motion', self._drag_motion_cb)
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invisible.connect('drag_leave', self._drag_leave_cb)
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invisible.realize()
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invisible.window.set_events(gtk.gdk.POINTER_MOTION_MASK |
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gtk.gdk.ENTER_NOTIFY_MASK |
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gtk.gdk.LEAVE_NOTIFY_MASK)
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invisible.window.move_resize(x, y, width, height)
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return invisible
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def _notify_enter(self):
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if not self._hover:
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self._hover = True
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self.emit('enter')
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def _notify_leave(self):
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if self._hover:
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self._hover = False
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self.emit('leave')
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def _enter_notify_cb(self, widget, event):
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self._notify_enter()
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def _leave_notify_cb(self, widget, event):
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self._notify_leave()
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def _drag_motion_cb(self, widget, drag_context, x, y, timestamp):
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drag_context.drag_status(0, timestamp);
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self._notify_enter()
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return True
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def _drag_leave_cb(self, widget, drag_context, timestamp):
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self._notify_leave()
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return True
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def show(self):
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for window in self._windows:
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window.show()
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def hide(self):
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for window in self._windows:
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window.hide()
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def _active_window_changed_cb(self, screen, previous_window=None):
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for window in self._windows:
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window.window.raise_()
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