Features/GTK3/Shell

Manuq started the port of the shell branching the hippo removal. The main issues were identified by Daniel Drake some months ago and fortunately most of them are fixed at this point.

Daniel Narvaez set up a sugar-build branch to make the port. To test:

git clone git://git.sugarlabs.org/~dnarvaez/sugar-build/manuqs-shell-port.git

That is sugar-build with this sugar components branched:

http://git.sugarlabs.org/~manuq/sugar/manuqs-erikos-shell-port  
http://git.sugarlabs.org/~manuq/sugar-toolkit-gtk3/manuqs-sugar-toolkit-gtk3

Open

foreach/forall

Using gtk_container_foreach or gtk_container_forall does expect the callback data to be passed in Python, it does work in a subclassed container due to Carlos fix in the GtkCallback annotations.

gtk_clipboard_set_with_data not introspected

In the annotations it is marked as non-introspectable.

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

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

It seems like functions with multiple callbacks are still unsupported in pygi. I opened https://bugzilla.gnome.org/show_bug.cgi?id=682604 but unless someone suggest a way to not break API perhaps we should just add our own sugar_clipboard_set_data using closures for now --dnarvaez

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'

We have a wrapper for this in sugar-toolkit-gtk3 --dnarvaez

gdk_property_get

The gdk_property_get annotations mark it as introspectable.

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

Maybe add to gdkwrapper in sugar-toolkit-gtk3? --dnarvaez

Palettes

• Palettes in Views do popup/popdown in a loop: fix in sugar-toolkit-gtk3/port
• FavoritePalette: wrong order of items: fix in sugar/port
• when you switch views always the owner Palette comes up
• Home View: when a Palette is up, the search entry is de-focused
• Palette label: 1) icon has gray background and 2) the positioning is not at the left, 3) there is no separation line below the label
• Journal ListView entry Palette: "AttributeError: 'CellRendererActivityIcon' object has no attribute 'get_display'"
• Frame, friend Palette draws not at the correct position
• Mix Menus and Widgets: Palettes can not mix both Menus and Widgets. Gonzalo has implemented a SugarMenuItem which can be used instead.

Icon/EventIcon: badge is not drawn at the correct position

Filed as SL #3835

Artwork

Changes in the theme to adopt to:

• Palette Icon: background
• GtkLabel: background
• Browse: Notebook label: background

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.

In Manuq branch, palettes are blinking when mouse is over the icon.

AssertionError:

 Traceback (most recent call last):
   File "/home/manuq/prog/manuqs-shell-port/install/lib/python2.7/site-packages/sugar3/graphics/palette.py", line
     or isinstance(self._widget, _PaletteWindowWidget)
 AssertionError

A handful of NMClient issues

See http://mail.gnome.org/archives/python-hackers-list/2011-August/msg00003.html and the other posts in the thread. Some problems resolved, some probably still pending.

Drag-and-drop in home view, random layout

Partially done in commit 204899e2. Pending issue: the activity icon is not being displayed while dragging.

 (sugar-session:13647): Gtk-CRITICAL **: gtk_drag_source_set_icon_pixbuf: assertion `site != NULL' failed

Other issues

• activity launch icon in the frame does not stop fading in and out, like loading
• widgets like icons and texts have grey background instead of black (toolbar-grey) - this is because of a change in gtk (seen in Browse too)

Done

Custom tree model for journal

Fix from: Manuel Quiñones, Simon Schampijer, Gonzalo Odiard

Custom tree model sample: http://dev.laptop.org/~manuq/shell-port/test_custom_treemodel-gtk3.py

Having trouble reimplementing this. See http://mail.gnome.org/archives/python-hackers-list/2011-December/msg00010.html this bug might be related see 8f31e85db1392eb7222593fc0d05144c2bca06a3 in pygobject.

Gonzalo provided an initial patch, and Manuq worked over it.

key grabber

Fix from: Simon Schampijer - grab_keys needs to be introspectable, patch - is_modifier does not allow to pass no mask anymore, has to be something like "is_modifier(keycode, mask=Gdk.ModifierType.MOD1_MASK)"

Xkl.ConfigRec does not have set_model() method

Fix from: Manuel Quiñones, Sergey V. Udaltsov

This should be called in the setup keyboard at the startup. setup_keyboard_cb in sugar/bin/sugar-session . Reported in pygobject as: https://bugzilla.gnome.org/show_bug.cgi?id=681566

Seems that libxklavier needs a setter. Reported to libxklavier as https://bugzilla.freedesktop.org/show_bug.cgi?id=53547

Owner icon allocation issue

Fix from: Simon Schampijer in commit cd29d065.

Port the gstreamer code to pygi

Fix from: Daniel Narvaez in commit f74489e6 .

Remove resize grips

Fix from: Manuel Quiñones

Resize grip has been moved from GtkStatusbar to GtkWindow. See "Resize grip" section of the GTK+2 > GTK+3 porting guide.

Done in commit 3efb87f3.

Custom Icon cell renderer

Fix from: Manuel Quiñones

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

gconf_client_get_list not introspectable

Workaround from: Daniel Drake

The annotations mark it as non-introspectale.

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

The keyboard is not set up yet because of this as is being called in setup_keyboard_cb in sugar/bin/sugar-session .

Needs:

• http://git.sugarlabs.org/~manuq/sugar/manuqs-erikos-shell-port/commit/74c77ed68912ec9253f509ba25ff05cebb4fba97
• http://git.sugarlabs.org/~manuq/sugar/manuqs-erikos-shell-port/commit/be519897a1cbd759e4feca640a95317804bedbc0

Custom TreeModelSort for home list view

Fix from: Simon Feltman, Manuel Quiñones

Can't inherit GtkTreeModelSort and pass a model to the parent constructor. Filed as: https://bugzilla.gnome.org/show_bug.cgi?id=681477

Working testcase for pygtk: http://dev.laptop.org/~manuq/test_listmodel2_gtk2.py

Testcase that shows the issue in PyGi: http://dev.laptop.org/~manuq/test_listmodel2_gtk3.py

Needs:

• can be made to work by passing keyword arguments e.g. "Gtk.TreeModelSort.__init__(self, model=self._model_filter)"

can't call gdk_window_set_user_data()

In the latest implementation we don't use set_user_data anymore AFAIK. http://mail.gnome.org/archives/python-hackers-list/2011-September/msg00006.html

do_forall not working in pygobject

Fix from: Tomeu Vizoso, John Palmieri, Carlos Garnacho

Needs:

• https://bugzilla.gnome.org/show_bug.cgi?id=663052 gobject-introspection was merged 2012-07-13
• https://bugzilla.gnome.org/show_bug.cgi?id=644926 pygobject missing header file in patch. was merged 2012-03-27
• http://git.gnome.org/browse/gtk+/commit/?id=db569cbee7e3842d802c5f1d53e28d0dde98ffeb fix which landed in GTK+

cant call gdkwindow.raise()

Fix from: Martin Pitt

Needs:

• https://bugzilla.gnome.org/show_bug.cgi?id=676746 fix landed in pygobject
• use gtk_window.get_window().raise_ instead

can not listen to signals in subclassed subclasses

Fix from: Carlos Garnacho

ActivityIcon.do_draw never called, see http://bugs.sugarlabs.org/ticket/3386

Needs:

• https://bugzilla.gnome.org/show_bug.cgi?id=672864 fix landed in pygobject

set_data/get_data not available anymore

Fix in toolkit-gtk3 from: Simon Schampijer

More background info in: https://bugzilla.gnome.org/show_bug.cgi?id=641944

Needs:

• http://git.sugarlabs.org/sugar-toolkit-gtk3/sugar-toolkit-gtk3/commit/af320f91f800ed9a46e84f12e9aa1ae3b95493b4 we can use python attributes here

libxklavier

Fix from: Manuel Quiñones

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

You have to use Xkl.Engine.get_instance(display) instead of the constructor. Manuq made sure the API we use is there. This testcase was useful.