/usr/lib/python2.7/dist-packages/caribou/antler/window.py is in caribou-antler 0.4.13-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#
# Caribou - text entry and UI navigation application
#
# Copyright (C) 2009 Eitan Isaacson <eitan@monotonous.org>
# Copyright (C) 2010 Warp Networks S.L.
# * Contributor: Daniel Baeyens <dbaeyens@warp.es>
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as published by the
# Free Software Foundation; either version 2.1 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 Lesser General Public License
# for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
from gi.repository import Gtk
from gi.repository import Gdk
from gi.repository import GObject
from gi.repository import Clutter
from antler_settings import AntlerSettings
from math import sqrt
import os
import sys
Clutter.init("antler")
class AnimatedWindowBase(Gtk.Window, Clutter.Animatable):
__gproperties__ = {
'antler-window-x' : (GObject.TYPE_INT, 'Window position',
'Window X coordinate',
GObject.G_MININT, GObject.G_MAXINT, 0,
GObject.PARAM_READWRITE),
'antler-window-y' : (GObject.TYPE_INT, 'Window position',
'Window Y coordinate',
GObject.G_MININT, GObject.G_MAXINT, 0,
GObject.PARAM_READWRITE)
}
def __init__(self):
GObject.GObject.__init__(self, type=Gtk.WindowType.POPUP)
# animation
self._stage = Clutter.Stage.get_default()
self._move_animation = None
self._opacity_animation = None
def do_get_property(self, property):
if property.name == "antler-window-x":
return self.get_position()[0]
elif property.name == "antler-window-y":
return self.get_position()[1]
else:
raise AttributeError, 'unknown property %s' % property.name
def do_set_property(self, property, value):
if property.name == "antler-window-x":
if value is not None:
self.move(value, self.get_position()[1])
elif property.name == "antler-window-y":
if value is not None:
self.move(self.get_position()[0], value)
else:
raise AttributeError, 'unknown property %s' % property.name
def do_animate_property(self, animation, prop_name, initial_value,
final_value, progress, gvalue):
if prop_name == "antler-window-x":
dx = int(initial_value * progress)
self.move(initial_value + dx, self.get_position()[1])
return True
elif prop_name == "antler-window-y":
dy = int(initial_value * progress)
self.move(self.get_position()[0], initial_value + dy)
return True
if prop_name == "opacity":
opacity = initial_value + ((final_value - initial_value) * progress)
GObject.idle_add(lambda: self.set_opacity(opacity))
return True
else:
return False
def animated_move(self, x, y, mode=Clutter.AnimationMode.EASE_OUT_CUBIC):
self._move_animation = Clutter.Animation(object=self,
mode=mode,
duration=250)
self._move_animation.bind("antler-window-x", x)
self._move_animation.bind("antler-window-y", y)
timeline = self._move_animation.get_timeline()
timeline.start()
return self._move_animation
def animated_opacity(self, opacity, mode=Clutter.AnimationMode.EASE_OUT_CUBIC):
if opacity == self.get_opacity():
return None
if self._opacity_animation is not None:
if self._opacity_animation.has_property('opacity'):
timeline = self._opacity_animation.get_timeline()
timeline.pause()
self._opacity_animation.unbind_property('opacity')
self._opacity_animation = Clutter.Animation(object=self, mode=mode,
duration=100)
self._opacity_animation.bind("opacity", opacity)
timeline = self._opacity_animation.get_timeline()
timeline.start()
return self._opacity_animation
class ProximityWindowBase(AnimatedWindowBase):
def __init__(self):
AnimatedWindowBase.__init__(self)
self._poll_tid = 0
settings = AntlerSettings()
self.max_distance = settings.max_distance.value
settings.max_distance.connect("value-changed", self._on_max_dist_changed)
min_alpha = settings.min_alpha
max_alpha = settings.max_alpha
min_alpha.connect("value-changed",
self._on_min_alpha_changed, max_alpha)
max_alpha.connect("value-changed",
self._on_max_alpha_changed, min_alpha)
self.connect('map-event', self._onmapped, settings)
def _on_max_dist_changed(self, setting, value):
self.max_distance = value
def _set_min_max_alpha(self, min_alpha, max_alpha):
if min_alpha > max_alpha:
min_alpha = max_alpha
self.max_alpha = max_alpha
self.min_alpha = min_alpha
if self.max_alpha != self.min_alpha:
if self._poll_tid == 0:
self._poll_tid = GObject.timeout_add(100, self._proximity_check)
elif self._poll_tid != 0:
GObject.source_remove(self._poll_tid)
def _onmapped(self, obj, event, settings):
if self.is_composited():
self._set_min_max_alpha(settings.min_alpha.value,
settings.max_alpha.value)
self._proximity_check()
def _on_min_alpha_changed(self, setting, value, max_alpha):
self._set_min_max_alpha(value, max_alpha.value)
def _on_max_alpha_changed(self, setting, value, min_alpha):
self._set_min_max_alpha(min_alpha.value, value)
def _proximity_check(self):
px, py = self.get_pointer()
ww = self.get_allocated_width()
wh = self.get_allocated_height()
distance = self._get_distance_to_bbox(px, py, ww, wh)
opacity = (self.max_alpha - self.min_alpha) * \
(1 - min(distance, self.max_distance)/self.max_distance)
opacity += self.min_alpha
self.animated_opacity(opacity)
if not self.props.visible:
self._poll_tid = 0
return False
return True
def _get_distance_to_bbox(self, px, py, bw, bh):
if px < 0:
x_distance = float(abs(px))
elif px > bw:
x_distance = float(px - bw)
else:
x_distance = 0.0
if py < 0:
y_distance = float(abs(py))
elif py > bh:
y_distance = float(py - bh)
else:
y_distance = 0.0
if y_distance == 0 and x_distance == 0:
return 0.0
elif y_distance != 0 and x_distance == 0:
return y_distance
elif y_distance == 0 and x_distance != 0:
return x_distance
else:
x2 = 0 if x_distance > 0 else bw
y2 = 0 if y_distance > 0 else bh
return sqrt((px - x2)**2 + (py - y2)**2)
class AntlerWindow(ProximityWindowBase):
def __init__(self, keyboard_view_factory, placement=None,
min_alpha=1.0, max_alpha=1.0, max_distance=100):
ProximityWindowBase.__init__(self)
self.set_name("AntlerWindow")
ctx = self.get_style_context()
ctx.add_class("antler-keyboard-window")
settings = AntlerSettings()
settings.keyboard_type.connect('value-changed', self.on_kb_type_changed)
self._vbox = Gtk.Box(orientation=Gtk.Orientation.VERTICAL)
self.add(self._vbox)
self.keyboard_view_factory = keyboard_view_factory
self.keyboard_view = keyboard_view_factory (settings.keyboard_type.value)
self._vbox.pack_start(self.keyboard_view, True, True, 0)
self.connect("size-allocate", self.on_size_allocate)
self._cursor_location = Rectangle()
self._entry_location = Rectangle()
self.placement = placement or \
AntlerWindowPlacement()
def on_kb_type_changed(self, setting, value):
self._vbox.remove(self.keyboard_view)
self.resize(1, 1)
self.keyboard_view = self.keyboard_view_factory (value)
self._vbox.pack_start(self.keyboard_view, True, True, 0)
self.keyboard_view.show_all()
def on_size_allocate(self, widget, allocation):
self._update_position()
def destroy(self):
self.keyboard.destroy()
super(Gtk.Window, self).destroy()
def set_cursor_location(self, x, y, w, h):
self._cursor_location = Rectangle(x, y, w, h)
self._update_position()
def set_entry_location(self, x, y, w, h):
self._entry_location = Rectangle(x, y, w, h)
self._update_position()
def set_placement(self, placement):
self.placement = placement
self._update_position()
def _get_root_bbox(self):
root_window = Gdk.get_default_root_window()
args = root_window.get_geometry()
root_bbox = Rectangle(*args)
# TODO: Do whatever we need to do to place the keyboard correctly
# in GNOME Shell and Unity.
#
return root_bbox
def _calculate_position(self, placement=None):
root_bbox = self._get_root_bbox()
placement = placement or self.placement
x = self._calculate_axis(placement.x, root_bbox)
y = self._calculate_axis(placement.y, root_bbox)
return x, y
def get_expected_position(self):
x, y = self._calculate_position()
origx, origy = x, y
root_bbox = self._get_root_bbox()
proposed_position = Rectangle(x, y, self.get_allocated_width(),
self.get_allocated_height())
x += self.placement.x.adjust_to_bounds(root_bbox, proposed_position)
y += self.placement.y.adjust_to_bounds(root_bbox, proposed_position)
return self.get_position() != (x, y) != y, x, y
def _update_position(self):
changed, x, y = self.get_expected_position()
if changed:
self.move(x, y)
def _calculate_axis(self, axis_placement, root_bbox):
bbox = root_bbox
if axis_placement.stickto == AntlerWindowPlacement.CURSOR:
bbox = self._cursor_location
elif axis_placement.stickto == AntlerWindowPlacement.ENTRY:
bbox = self._entry_location
offset = axis_placement.get_offset(bbox.x, bbox.y)
if axis_placement.align == AntlerWindowPlacement.END:
offset += axis_placement.get_length(bbox.width, bbox.height)
if axis_placement.gravitate == AntlerWindowPlacement.INSIDE:
offset -= axis_placement.get_length(
self.get_allocated_width(),
self.get_allocated_height())
elif axis_placement.align == AntlerWindowPlacement.START:
if axis_placement.gravitate == AntlerWindowPlacement.OUTSIDE:
offset -= axis_placement.get_length(
self.get_allocated_width(),
self.get_allocated_height())
elif axis_placement.align == AntlerWindowPlacement.CENTER:
offset += axis_placement.get_length(bbox.width, bbox.height)/2
return offset
class AntlerWindowDocked(AntlerWindow):
def __init__(self, keyboard_view_factory, horizontal_roll=False):
placement = AntlerWindowPlacement(
xalign=AntlerWindowPlacement.START,
yalign=AntlerWindowPlacement.END,
xstickto=AntlerWindowPlacement.SCREEN,
ystickto=AntlerWindowPlacement.SCREEN,
xgravitate=AntlerWindowPlacement.INSIDE)
AntlerWindow.__init__(self, keyboard_view_factory, placement)
self.horizontal_roll = horizontal_roll
self._rolled_in = False
def show_all(self):
super(AntlerWindow, self).show_all()
def on_size_allocate(self, widget, allocation):
self._roll_in()
def _roll_in(self):
if self._rolled_in:
return
self._rolled_in = True
x, y = self._get_preroll_position()
self.move(x, y)
x, y = self._get_postroll_position()
return self.animated_move(x, y)
def _get_preroll_position(self):
_, x, y = self.get_expected_position()
if self.horizontal_roll:
newy = y
if self.placement.x.align == AntlerWindowPlacement.END:
newx = x + self.get_allocated_width()
else:
newx = x - self.get_allocated_width()
else:
newx = x
if self.placement.y.align == AntlerWindowPlacement.END:
newy = y + self.get_allocated_height()
else:
newy = y - self.get_allocated_height()
return newx, newy
def _get_postroll_position(self):
x, y = self.get_position()
if self.horizontal_roll:
newy = y
if self.placement.x.align != AntlerWindowPlacement.END:
newx = x + self.get_allocated_width()
else:
newx = x - self.get_allocated_width()
else:
newx = x
if self.placement.y.align != AntlerWindowPlacement.END:
newy = y + self.get_allocated_height()
else:
newy = y - self.get_allocated_height()
return newx, newy
def _roll_out(self):
if not self._rolled_in:
return
self._rolled_in = False;
x, y = self.get_position()
return self.animated_move(x + self.get_allocated_width(), y)
def hide(self):
animation = self._roll_out()
animation.connect('completed', lambda x: AntlerWindow.hide(self))
class AntlerWindowEntry(AntlerWindow):
def __init__(self, keyboard_view_factory):
placement = AntlerWindowPlacement(
xalign=AntlerWindowPlacement.START,
xstickto=AntlerWindowPlacement.ENTRY,
ystickto=AntlerWindowPlacement.ENTRY,
xgravitate=AntlerWindowPlacement.INSIDE,
ygravitate=AntlerWindowPlacement.OUTSIDE)
AntlerWindow.__init__(self, keyboard_view_factory, placement)
def _calculate_axis(self, axis_placement, root_bbox):
offset = AntlerWindow._calculate_axis(self, axis_placement, root_bbox)
if axis_placement.axis == 'y':
if offset + self.get_allocated_height() > root_bbox.height + root_bbox.y:
new_axis_placement = axis_placement.copy(align=AntlerWindowPlacement.START)
offset = AntlerWindow._calculate_axis(self, new_axis_placement, root_bbox)
return offset
class AntlerWindowPlacement(object):
START = 'start'
END = 'end'
CENTER = 'center'
SCREEN = 'screen'
ENTRY = 'entry'
CURSOR = 'cursor'
INSIDE = 'inside'
OUTSIDE = 'outside'
class _AxisPlacement(object):
def __init__(self, axis, align, stickto, gravitate):
self.axis = axis
self.align = align
self.stickto = stickto
self.gravitate = gravitate
def copy(self, align=None, stickto=None, gravitate=None):
return self.__class__(self.axis,
align or self.align,
stickto or self.stickto,
gravitate or self.gravitate)
def get_offset(self, x, y):
return x if self.axis == 'x' else y
def get_length(self, width, height):
return width if self.axis == 'x' else height
def adjust_to_bounds(self, root_bbox, child_bbox):
child_vector_start = self.get_offset(child_bbox.x, child_bbox.y)
child_vector_end = \
self.get_length(child_bbox.width, child_bbox.height) + \
child_vector_start
root_vector_start = self.get_offset(root_bbox.x, root_bbox.y)
root_vector_end = self.get_length(
root_bbox.width, root_bbox.height) + root_vector_start
if root_vector_end < child_vector_end:
return root_vector_end - child_vector_end
if root_vector_start > child_vector_start:
return root_vector_start - child_vector_start
return 0
def __init__(self,
xalign=None, xstickto=None, xgravitate=None,
yalign=None, ystickto=None, ygravitate=None):
self.x = self._AxisPlacement('x',
xalign or self.END,
xstickto or self.CURSOR,
xgravitate or self.OUTSIDE)
self.y = self._AxisPlacement('y',
yalign or self.END,
ystickto or self.CURSOR,
ygravitate or self.OUTSIDE)
class Rectangle(object):
def __init__(self, x=0, y=0, width=0, height=0):
self.x = x
self.y = y
self.width = width
self.height = height
if __name__ == "__main__":
import keyboard_view
import signal
signal.signal(signal.SIGINT, signal.SIG_DFL)
w = AntlerWindowDocked(keyboard_view.AntlerKeyboardView)
w.show_all()
try:
Gtk.main()
except KeyboardInterrupt:
Gtk.main_quit()
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