Features/GTK3/Shell

Daniel Drake started an effort to port the shell to the GTK3 sugar-toolkit. These are the biggest issues identified so far:

Open

gconf_client_get_list not introspectable

opened an upstream bug: https://bugzilla.gnome.org/show_bug.cgi?id=681433

similar boxed types fix: https://bugzilla.gnome.org/show_bug.cgi?id=613247

Custom tree model for journal

Having trouble reimplementing this. See http://mail.gnome.org/archives/python-hackers-list/2011-December/msg00010.html

Custom Icon cell renderer

sugar3.graphics.icon.CellRendererIcon is based on pygtks GenericCellRenderer - needs to be ported

gtk_clipboard_set_with_data not introspected

http://www.daa.com.au/pipermail/pygtk/2011-July/019940.html

- check with pygobject devs if the above statement is still the case

libxklavier

python-xklavier is based on pygtk codegen, we can probably just drop the link to pygtk, but failing that, we will need introspection bindings.

This is how Anaconda is using libxklavier in Python (found when coming across this bug, Colin enabled introspection for libxklavier).

gdk_property_get

Not working:

def _property_get_trapped(window, prop, prop_type):
    Gdk.error_trap_push()

    prop_atom = Gdk.Atom.intern(prop, False)
    type_atom = Gdk.Atom.intern(prop_type, False)

    logging.warning("get prop %s %s %s", window, prop_atom, type_atom)
    prop_info = Gdk.property_get(window, prop_atom, type_atom, 0, 9999, False)

TypeError: Could not caller allocate argument 6 of callable property_get

gdk_property_change

Is marked as non-introspectable in the annotations.

>>> from gi.repository import Gdk
>>> Gdk.property_change
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/erikos/sources/manuqs-shell-port/install/lib/python2.7/site-packages/gi/module.py", line 266, in __getattr__
    return getattr(self._introspection_module, name)
  File "/home/erikos/sources/manuqs-shell-port/install/lib/python2.7/site-packages/gi/module.py", line 115, in __getattr__
    self.__name__, name))
AttributeError: 'gi.repository.Gdk' object has no attribute 'property_change'

Port hardcoded styles to the CSS stylesheet

For example in sugar/extensions/cpsection/network/view.py we have things like:

        label_server = gtk.Label(_('Server:'))
        label_server.set_alignment(1, 0.5)
        label_server.modify_fg(gtk.STATE_NORMAL,
                               style.COLOR_SELECTION_GREY.get_gdk_color())

Palettes can't include menu and widgets at the same time

We can use anything like this:


class SugarMenuItem(gtk.EventBox):

    __gsignals__ = {
        'clicked': (gobject.SIGNAL_RUN_FIRST, None, [])
    }

    def __init__(self, icon_name, label_text):
        gtk.EventBox.__init__(self)
        self._sensitive = True
        vbox = gtk.VBox()
        hbox = gtk.HBox()
        vbox.set_border_width(style.DEFAULT_PADDING)
        self.icon = Icon()
        self.icon.props.icon_name = icon_name
        hbox.pack_start(self.icon, expand=False, fill=False,
                padding=style.DEFAULT_PADDING)
        align = gtk.Alignment(xalign=0.0, yalign=0.5, xscale=0.0, yscale=0.0)
        text = '<span foreground="%s">' % style.COLOR_WHITE.get_html() + \
                    label_text + '</span>'
        self.label = gtk.Label()
        self.label.set_use_markup(True)
        self.label.set_markup(text)
        align.add(self.label)
        hbox.pack_start(align, expand=True, fill=True,
                padding=style.DEFAULT_PADDING)
        vbox.pack_start(hbox, expand=False, fill=False,
                padding=style.DEFAULT_PADDING)
        self.add(vbox)
        self.id_bt_release_cb = self.connect('button-release-event',
                self.__button_release_cb)
        self.id_enter_notify_cb = self.connect('enter-notify-event',
                self.__enter_notify_cb)
        self.id_leave_notify_cb = self.connect('leave-notify-event',
                self.__leave_notify_cb)
        self.modify_bg(gtk.STATE_NORMAL, style.COLOR_BLACK.get_gdk_color())
        self.show_all()
        self.set_above_child(True)

    def __button_release_cb(self, widget, event):
        self.emit('clicked')

    def __enter_notify_cb(self, widget, event):
        self.modify_bg(gtk.STATE_NORMAL,
                style.COLOR_BUTTON_GREY.get_gdk_color())

    def __leave_notify_cb(self, widget, event):
        self.modify_bg(gtk.STATE_NORMAL, style.COLOR_BLACK.get_gdk_color())

    def set_icon(self, icon_name):
        self.icon.props.icon_name = icon_name

    def set_label(self, label_text):
        text = '<span foreground="%s">' % style.COLOR_WHITE.get_html() + \
                    label_text + '</span>'
        self.label.set_markup(text)

    def set_sensitive(self, sensitive):
        if self._sensitive == sensitive:
            return

        self._sensitive = sensitive
        if sensitive:
            self.handler_unblock(self.id_bt_release_cb)
            self.handler_unblock(self.id_enter_notify_cb)
            self.handler_unblock(self.id_leave_notify_cb)
        else:
            self.handler_block(self.id_bt_release_cb)
            self.handler_block(self.id_enter_notify_cb)
            self.handler_block(self.id_leave_notify_cb)
            self.modify_bg(gtk.STATE_NORMAL, style.COLOR_BLACK.get_gdk_color())

And add them to a vbox:


        # TODO: private!!!
        self._content.set_border_width(0)
 
        self._play_pause_button = SugarMenuItem('player_play',
                _('Say selected text'))
        self._play_pause_button.connect('clicked', self.__play_clicked_cb)
        vbox_menu.add(self._play_pause_button)

To do the SegurMenuItem take all the width in the palette, we need set the border_width in _content to zero, but that is a private member. Then we need to look if we add a method to set the it, or change the api to make the first container (where is the menu today) useful for other type of widgets.