sugar-toolkit-gtk3/shell/view/frame/frame.py

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# Copyright (C) 2006-2007 Red Hat, Inc.
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#
# 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 logging
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import gtk
import gobject
import hippo
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from view.frame.eventarea import EventArea
from view.frame.ActivitiesBox import ActivitiesBox
from view.frame.ZoomBox import ZoomBox
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from view.frame.overlaybox import OverlayBox
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from view.frame.FriendsBox import FriendsBox
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from view.frame.framewindow import FrameWindow
from view.frame.clipboardpanelwindow import ClipboardPanelWindow
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from model.ShellModel import ShellModel
from sugar.graphics import animator
from sugar.graphics import units
from sugar.clipboard import clipboardservice
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MODE_NONE = 0
MODE_MOUSE = 1
MODE_KEYBOARD = 2
MODE_FORCE = 3
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_FRAME_HIDING_DELAY = 500
class _Animation(animator.Animation):
def __init__(self, frame, end):
start = frame.get_current_position()
animator.Animation.__init__(self, start, end)
self._frame = frame
def next_frame(self, current):
self._frame.move(current)
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class _MouseListener(object):
def __init__(self, frame):
self._frame = frame
self._hide_sid = 0
def mouse_enter(self):
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if self._frame.mode == MODE_NONE or \
self._frame.mode == MODE_MOUSE:
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self._show_frame()
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def mouse_leave(self):
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if self._frame.mode == MODE_MOUSE:
self._hide_frame()
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def _show_frame(self):
if self._hide_sid != 0:
gobject.source_remove(self._hide_sid)
self._frame.show()
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self._frame.mode = MODE_MOUSE
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def _hide_frame_timeout_cb(self):
self._frame.hide()
return False
def _hide_frame(self):
if self._hide_sid != 0:
gobject.source_remove(self._hide_sid)
self._hide_sid = gobject.timeout_add(
_FRAME_HIDING_DELAY, self._hide_frame_timeout_cb)
class _KeyListener(object):
_HIDDEN = 1
_SHOWN_PRESSED = 2
_SHOWN_REPEAT = 3
_SHOWN_RELEASED = 4
def __init__(self, frame):
self._frame = frame
self._state = _KeyListener._HIDDEN
def key_press(self):
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if self._frame.mode != MODE_NONE and \
self._frame.mode != MODE_KEYBOARD:
return
if self._frame.visible:
self._frame.hide()
else:
self._frame.show()
self._frame.mode = MODE_KEYBOARD
"""
if self._state == _KeyListener._HIDDEN:
self._frame.show()
self._frame.mode = MODE_KEYBOARD
self._state = _KeyListener._SHOWN_PRESSED
elif self._state == _KeyListener._SHOWN_PRESSED:
self._state = _KeyListener._SHOWN_REPEAT
elif self._state == _KeyListener._SHOWN_RELEASED:
self._frame.hide()
self._state = _KeyListener._HIDDEN
"""
def key_release(self):
pass
"""
if self._state == _KeyListener._SHOWN_PRESSED:
self._state = _KeyListener._SHOWN_RELEASED
elif self._state == _KeyListener._SHOWN_REPEAT:
self._frame.hide()
self._state = _KeyListener._HIDDEN
"""
class Frame(object):
def __init__(self, shell):
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self.mode = MODE_NONE
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self.visible = False
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self._left_panel = None
self._right_panel = None
self._top_panel = None
self._bottom_panel = None
self._shell = shell
self._current_position = 0.0
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self._animator = None
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self._hover = False
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self._event_area = EventArea()
self._event_area.connect('enter', self._enter_corner_cb)
self._event_area.show()
self._top_panel = self._create_top_panel()
self._bottom_panel = self._create_bottom_panel()
self._left_panel = self._create_left_panel()
self._right_panel = self._create_right_panel()
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screen = gtk.gdk.screen_get_default()
screen.connect('size-changed', self._size_changed_cb)
cb_service = clipboardservice.get_instance()
cb_service.connect_after('object-added', self._clipboard_object_added_cb)
self._key_listener = _KeyListener(self)
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self._mouse_listener = _MouseListener(self)
def hide(self, force=False):
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if not self.visible:
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return
if self._animator:
self._animator.stop()
self._animator = animator.Animator(0.5)
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self._animator.add(_Animation(self, 0.0))
self._animator.start()
self._event_area.show()
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self.visible = False
if force:
self.mode = MODE_NONE
else:
self.mode = MODE_FORCE
self._animator.connect('completed', self._hide_completed_cb)
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def show(self):
self.mode = MODE_FORCE
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if self.visible:
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return
if self._animator:
self._animator.stop()
self._animator = animator.Animator(0.5)
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self._animator.add(_Animation(self, 1.0))
self._animator.start()
self._event_area.hide()
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self.visible = True
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def get_current_position(self):
return self._current_position
def move(self, pos):
self._current_position = pos
self._update_position()
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def _is_hover(self):
return (self._top_panel.hover or \
self._bottom_panel.hover or \
self._left_panel.hover or \
self._right_panel.hover)
def _create_top_panel(self):
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panel = self._create_panel(hippo.ORIENTATION_HORIZONTAL)
root = panel.get_root()
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box = ZoomBox(self._shell)
root.append(box)
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#box = OverlayBox(self._shell)
#root.append(box, hippo.PACK_END)
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return panel
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def _create_bottom_panel(self):
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panel = self._create_panel(hippo.ORIENTATION_HORIZONTAL)
root = panel.get_root()
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box = ActivitiesBox(self._shell)
root.append(box)
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return panel
def _create_right_panel(self):
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panel = self._create_panel(hippo.ORIENTATION_VERTICAL)
root = panel.get_root()
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box = FriendsBox(self._shell)
root.append(box)
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return panel
def _create_left_panel(self):
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panel = ClipboardPanelWindow(self, hippo.ORIENTATION_VERTICAL)
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self._connect_to_panel(panel)
panel.connect('drag-motion', self._drag_motion_cb)
panel.connect('drag-leave', self._drag_leave_cb)
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return panel
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def _create_panel(self, orientation):
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panel = FrameWindow(orientation)
self._connect_to_panel(panel)
return panel
def _move_panel(self, panel, pos, x1, y1, x2, y2):
x = (x2 - x1) * pos + x1
y = (y2 - y1) * pos + y1
panel.move(int(x), int(y))
# FIXME we should hide and show as necessary to free memory
if not panel.props.visible:
panel.show()
def _connect_to_panel(self, panel):
panel.connect('enter-notify-event', self._enter_notify_cb)
def _update_position(self):
screen_h = gtk.gdk.screen_height()
screen_w = gtk.gdk.screen_width()
self._move_panel(self._top_panel, self._current_position,
0, units.grid_to_pixels(-1),
0, 0)
self._move_panel(self._bottom_panel, self._current_position,
0, screen_h,
0, screen_h - units.grid_to_pixels(1))
self._move_panel(self._left_panel, self._current_position,
units.grid_to_pixels(-1), 0,
0, 0)
self._move_panel(self._right_panel, self._current_position,
screen_w, 0,
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screen_w - units.grid_to_pixels(1), 0)
def _hide_completed_cb(self, animator):
self.mode = MODE_NONE
def _size_changed_cb(self, screen):
self._update_position()
def _clipboard_object_added_cb(self, cb_service, object_id, name):
if not self.visible:
self.show()
gobject.timeout_add(2000, lambda: self.hide())
def _enter_notify_cb(self, window, event):
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self._mouse_listener.mouse_enter()
def _drag_motion_cb(self, window, context, x, y, time):
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self._mouse_listener.mouse_enter()
def _drag_leave_cb(self, window, drag_context, timestamp):
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self._mouse_listener.mouse_leave()
def _enter_corner_cb(self, event_area):
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self._mouse_listener.mouse_enter()
def notify_key_press(self):
self._key_listener.key_press()
def notify_key_release(self):
self._key_listener.key_release()