from gettext import gettext as _ import gtk import gobject from sugar.graphics import style from sugar.graphics.icon import Icon class Alert(gtk.EventBox, gobject.GObject): """UI interface for Alerts Alerts are used inside the activity window instead of being a separate popup window. They do not hide canvas content. You can use add_alert(widget, position) and remove_alert(widget) inside your activity to add and remove the alert. Properties: 'title': the title of the alert, 'message': the message of the alert, 'icon': the icon that appears at the far left See __gproperties__ """ __gtype_name__ = 'SugarAlert' __gsignals__ = { 'response': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE, ([int])) } __gproperties__ = { 'title' : (str, None, None, None, gobject.PARAM_READWRITE), 'msg' : (str, None, None, None, gobject.PARAM_READWRITE), 'icon' : (object, None, None, gobject.PARAM_WRITABLE) } def __init__(self, **kwargs): gobject.GObject.__init__(self) self.set_visible_window(True) self._hbox = gtk.HBox() self.add(self._hbox) self._title = None self._msg = None self._icon = None self._timeout = 0 self._buttons = {} self._msg_box = gtk.VBox() self._title_label = gtk.Label() size = style.zoom(style.GRID_CELL_SIZE * 0.5) self._title_label.set_alignment(0, 0.5) self._title_label.set_padding(style.DEFAULT_SPACING, 0) self._msg_box.pack_start(self._title_label, False) self._title_label.show() self._msg_label = gtk.Label() self._msg_label.set_alignment(0, 0.5) self._msg_label.set_padding(style.DEFAULT_SPACING, 0) self._msg_box.pack_start(self._msg_label, False) self._msg_label.show() self._hbox.pack_start(self._msg_box) self._buttons_box = gtk.HButtonBox() self._buttons_box.set_layout(gtk.BUTTONBOX_SPREAD) self._hbox.pack_start(self._buttons_box) self._buttons_box.show() self._msg_box.show() self._hbox.show() self.show() def do_set_property(self, pspec, value): if pspec.name == 'title': if self._title != value: self._title = value self._title_label.set_markup("" + self._title + "") elif pspec.name == 'msg': if self._msg != value: self._msg = value self._msg_label.set_markup(self._msg) elif pspec.name == 'icon': if self._icon != value: self._icon = value self._hbox.pack_start(self._icon) self._hbox.reorder_child(self._icon, 0) def do_get_property(self, pspec): if pspec.name == 'title': return self._title elif pspec.name == 'msg': return self._msg def add_button(self, response_id, label, icon, position=-1): """Add a button to the alert response_id: will be emitted with the response signal label: that will occure right to the buttom icon: this can be a SugarIcon or a gtk.Image position: the position of the button in the box (optional) """ button = gtk.Button() self._buttons[response_id] = button button.set_image(icon) button.set_label(label) self._buttons_box.pack_start(button) button.show() button.connect('clicked', self.__button_clicked_cb, response_id) if position != -1: self._buttons_box.reorder_child(button, position) return button def remove_button(self, response_id): """Remove a button from the alert by the given button id""" self._buttons_box.remove(self._buttons[id]) def _response(self, id): """Emitting response when we have a result A result can be that a user has clicked a button or a timeout has occured, the id identifies the button that has been clicked and -1 for a timeout """ self.emit('response', id) def __button_clicked_cb(self, button, response_id): self._response(response_id) class ConfirmationAlert(Alert): """This is a ready-made two button (Cancel,Ok) alert""" def __init__(self, **kwargs): Alert.__init__(self, **kwargs) icon = Icon(icon_name='dialog-cancel') cancel_button = self.add_button(0, _('Cancel'), icon) icon.show() icon = Icon(icon_name='dialog-ok') ok_button = self.add_button(1, _('Ok'), icon) icon.show()