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-rw-r--r--src/jarabe/frame/eventarea.py153
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diff --git a/src/jarabe/frame/eventarea.py b/src/jarabe/frame/eventarea.py
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+# Copyright (C) 2007, Red Hat, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+import gtk
+import gobject
+import wnck
+import gconf
+
+
+_MAX_DELAY = 1000
+
+
+class EventArea(gobject.GObject):
+ __gsignals__ = {
+ 'enter': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE, ([])),
+ 'leave': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE, ([])),
+ }
+
+ def __init__(self):
+ gobject.GObject.__init__(self)
+
+ self._windows = []
+ self._hover = False
+ self._sids = {}
+ client = gconf.client_get_default()
+ self._edge_delay = client.get_int('/desktop/sugar/frame/edge_delay')
+ self._corner_delay = client.get_int('/desktop/sugar/frame'
+ '/corner_delay')
+
+ right = gtk.gdk.screen_width() - 1
+ bottom = gtk.gdk.screen_height() - 1
+ width = gtk.gdk.screen_width() - 2
+ height = gtk.gdk.screen_height() - 2
+
+ if self._edge_delay != _MAX_DELAY:
+ invisible = self._create_invisible(1, 0, width, 1,
+ self._edge_delay)
+ self._windows.append(invisible)
+
+ invisible = self._create_invisible(1, bottom, width, 1,
+ self._edge_delay)
+ self._windows.append(invisible)
+
+ invisible = self._create_invisible(0, 1, 1, height,
+ self._edge_delay)
+ self._windows.append(invisible)
+
+ invisible = self._create_invisible(right, 1, 1, height,
+ self._edge_delay)
+ self._windows.append(invisible)
+
+ if self._corner_delay != _MAX_DELAY:
+ invisible = self._create_invisible(0, 0, 1, 1,
+ self._corner_delay)
+ self._windows.append(invisible)
+
+ invisible = self._create_invisible(right, 0, 1, 1,
+ self._corner_delay)
+ self._windows.append(invisible)
+
+ invisible = self._create_invisible(0, bottom, 1, 1,
+ self._corner_delay)
+ self._windows.append(invisible)
+
+ invisible = self._create_invisible(right, bottom, 1, 1,
+ self._corner_delay)
+ self._windows.append(invisible)
+
+ screen = wnck.screen_get_default()
+ screen.connect('window-stacking-changed',
+ self._window_stacking_changed_cb)
+
+ def _create_invisible(self, x, y, width, height, delay):
+ invisible = gtk.Invisible()
+ if delay >= 0:
+ invisible.connect('enter-notify-event', self._enter_notify_cb,
+ delay)
+ invisible.connect('leave-notify-event', self._leave_notify_cb)
+
+ invisible.drag_dest_set(0, [], 0)
+ invisible.connect('drag_motion', self._drag_motion_cb)
+ invisible.connect('drag_leave', self._drag_leave_cb)
+
+ invisible.realize()
+ # pylint: disable=E1101
+ invisible.window.set_events(gtk.gdk.POINTER_MOTION_MASK |
+ gtk.gdk.ENTER_NOTIFY_MASK |
+ gtk.gdk.LEAVE_NOTIFY_MASK)
+ invisible.window.move_resize(x, y, width, height)
+
+ return invisible
+
+ def _notify_enter(self):
+ if not self._hover:
+ self._hover = True
+ self.emit('enter')
+
+ def _notify_leave(self):
+ if self._hover:
+ self._hover = False
+ self.emit('leave')
+
+ def _enter_notify_cb(self, widget, event, delay):
+ if widget in self._sids:
+ gobject.source_remove(self._sids[widget])
+ self._sids[widget] = gobject.timeout_add(delay,
+ self.__delay_cb,
+ widget)
+
+ def __delay_cb(self, widget):
+ del self._sids[widget]
+ self._notify_enter()
+ return False
+
+ def _leave_notify_cb(self, widget, event):
+ if widget in self._sids:
+ gobject.source_remove(self._sids[widget])
+ del self._sids[widget]
+ self._notify_leave()
+
+ def _drag_motion_cb(self, widget, drag_context, x, y, timestamp):
+ drag_context.drag_status(0, timestamp)
+ self._notify_enter()
+ return True
+
+ def _drag_leave_cb(self, widget, drag_context, timestamp):
+ self._notify_leave()
+ return True
+
+ def show(self):
+ for window in self._windows:
+ window.show()
+
+ def hide(self):
+ for window in self._windows:
+ window.hide()
+
+ def _window_stacking_changed_cb(self, screen):
+ for window in self._windows:
+ window.window.raise_()