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