84 lines
2.0 KiB
Python
84 lines
2.0 KiB
Python
from sugar.canvas.IconItem import IconItem
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from sugar.canvas.Grid import Grid
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class _MenuShell:
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def __init__(self):
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self._menu_controller = None
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def set_active(self, controller):
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if self._menu_controller:
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self._menu_controller.popdown()
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self._menu_controller = controller
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class MenuIcon(IconItem):
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_menu_shell = _MenuShell()
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def __init__(self, grid, **kwargs):
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IconItem.__init__(self, **kwargs)
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self._grid = grid
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self._menu = None
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self._menu_distance = 0
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self._hover_menu = False
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self._popdown_on_leave = False
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self.connect('popup', self._popup_cb)
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self.connect('popdown', self._popdown_cb)
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def set_menu_distance(self, distance):
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self._menu_distance = distance
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def popdown(self):
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if self._menu:
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self._menu.destroy()
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self._menu = None
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def _popup_cb(self, icon, x1, y1, x2, y2):
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self.popdown()
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MenuIcon._menu_shell.set_active(None)
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grid = self._shell.get_grid()
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self._menu = self.create_menu()
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self._menu.connect('enter-notify-event',
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self._menu_enter_notify_event_cb)
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self._menu.connect('leave-notify-event',
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self._menu_leave_notify_event_cb)
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distance = self._menu_distance
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[grid_x1, grid_y1] = grid.convert_from_screen(x1, y1)
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[grid_x2, grid_y2] = grid.convert_from_screen(x2, y2)
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grid_x = grid_x2 + distance
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if grid_x + self._menu.get_width() > Grid.COLS:
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grid_x = grid_x1 - self._menu.get_width() + 1 - distance
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grid_y = grid_y1
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if grid_y < 0:
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grid_y = 0
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if grid_y + self._menu.get_width() > Grid.ROWS:
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grid_y = Grid.ROWS - self._menu.get_width()
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grid.set_constraints(self._menu, grid_x, grid_y,
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self._menu.get_width(), self._menu.get_height())
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self._menu.show()
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MenuIcon._menu_shell.set_active(self)
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def _popdown_cb(self, friend):
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if not self._hover_menu:
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self.popdown()
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else:
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self._popdown_on_leave = True
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def _menu_enter_notify_event_cb(self, widget, event):
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self._hover_menu = True
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def _menu_leave_notify_event_cb(self, widget, event):
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self._hover_menu = False
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if self._popdown_on_leave:
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self.popdown()
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