124 lines
3.1 KiB
Python
124 lines
3.1 KiB
Python
import goocanvas
|
|
import gobject
|
|
|
|
from sugar.canvas.IconItem import IconItem
|
|
from sugar.canvas.Grid import Grid
|
|
|
|
class _MenuShell:
|
|
def __init__(self):
|
|
self._menu_controller = None
|
|
|
|
def set_active(self, controller):
|
|
if self._menu_controller:
|
|
self._menu_controller.popdown()
|
|
self._menu_controller = controller
|
|
|
|
class MenuIcon(IconItem, goocanvas.Item):
|
|
_menu_shell = _MenuShell()
|
|
|
|
def __init__(self, grid, **kwargs):
|
|
IconItem.__init__(self, **kwargs)
|
|
|
|
self._grid = grid
|
|
self._menu = None
|
|
self._menu_distance = 0
|
|
self._hover_menu = False
|
|
self._popdown_on_leave = False
|
|
self._popdown_sid = 0
|
|
|
|
def set_menu_distance(self, distance):
|
|
self._menu_distance = distance
|
|
|
|
def popdown(self):
|
|
if self._menu:
|
|
self._menu.destroy()
|
|
self._menu = None
|
|
|
|
def _popup(self, x1, y1, x2, y2):
|
|
self.popdown()
|
|
|
|
MenuIcon._menu_shell.set_active(None)
|
|
|
|
grid = self._shell.get_grid()
|
|
self._menu = self.create_menu()
|
|
self._menu.connect('enter-notify-event',
|
|
self._menu_enter_notify_event_cb)
|
|
self._menu.connect('leave-notify-event',
|
|
self._menu_leave_notify_event_cb)
|
|
|
|
distance = self._menu_distance
|
|
|
|
[grid_x1, grid_y1] = grid.convert_from_screen(x1, y1)
|
|
[grid_x2, grid_y2] = grid.convert_from_screen(x2, y2)
|
|
|
|
grid_x = grid_x2 + distance
|
|
if grid_x + self._menu.get_width() > Grid.COLS:
|
|
grid_x = grid_x1 - self._menu.get_width() + 1 - distance
|
|
|
|
grid_y = grid_y1
|
|
|
|
if grid_y < 0:
|
|
grid_y = 0
|
|
if grid_y + self._menu.get_width() > Grid.ROWS:
|
|
grid_y = Grid.ROWS - self._menu.get_width()
|
|
|
|
grid.set_constraints(self._menu, grid_x, grid_y,
|
|
self._menu.get_width(), self._menu.get_height())
|
|
|
|
self._menu.show()
|
|
|
|
MenuIcon._menu_shell.set_active(self)
|
|
|
|
def _menu_enter_notify_event_cb(self, widget, event):
|
|
self._hover_menu = True
|
|
|
|
def _menu_leave_notify_event_cb(self, widget, event):
|
|
self._hover_menu = False
|
|
if self._popdown_on_leave:
|
|
self.popdown()
|
|
|
|
def do_create_view(self, canvas, parent_view):
|
|
view = IconItem.do_create_view(self, canvas, parent_view)
|
|
view.connect('enter-notify-event', self._enter_notify_event_cb, canvas)
|
|
view.connect('leave-notify-event', self._leave_notify_event_cb)
|
|
return view
|
|
|
|
def _start_popdown_timeout(self):
|
|
self._stop_popdown_timeout()
|
|
self._popdown_sid = gobject.timeout_add(1000, self._popdown_timeout_cb)
|
|
|
|
def _stop_popdown_timeout(self):
|
|
if self._popdown_sid > 0:
|
|
gobject.source_remove(self._popdown_sid)
|
|
self._popdown_sid = 0
|
|
|
|
def _enter_notify_event_cb(self, view, target, event, canvas):
|
|
self._stop_popdown_timeout()
|
|
|
|
[x1, y1] = canvas.convert_to_pixels(view.get_bounds().x1,
|
|
view.get_bounds().y1)
|
|
[x2, y2] = canvas.convert_to_pixels(view.get_bounds().x2,
|
|
view.get_bounds().y2)
|
|
|
|
[window_x, window_y] = canvas.window.get_origin()
|
|
|
|
x1 += window_x
|
|
y1 += window_y
|
|
x2 += window_x
|
|
y2 += window_y
|
|
|
|
self._popup(int(x1), int(y1), int(x2), int(y2))
|
|
|
|
def _popdown_timeout_cb(self):
|
|
self._popdown_sid = 0
|
|
|
|
if not self._hover_menu:
|
|
self.popdown()
|
|
else:
|
|
self._popdown_on_leave = True
|
|
|
|
return False
|
|
|
|
def _leave_notify_event_cb(self, view, target, event):
|
|
self._start_popdown_timeout()
|