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Wikiwide is offline Wikiwide
2010-11-25 , 10:07
Posts: 2,006 | Thanked: 3,351 times | Joined on Jun 2010 @ N900: Battery low. N950: torx 4 re-used once and fine; SIM port torn apart
#11
Originally Posted by Diph View Post
What does the hildon-desktop theme option do?

hildon-desktop -theme theme : Load the specified theme
The same as personalization app?
 
lunat is offline lunat
2010-11-25 , 10:55
Posts: 256 | Thanked: 92 times | Joined on Oct 2010
#12
the fact that it behaves the way you describe it with any theme change is good clue that what you search simple doesn't exist. at least nobody seems to bother if so.

not only qtapps stay alive but with every theme change a part of the old theme stays. guess that rules out a qt problem. as it seems to be generic.
well if you find something you might want to tell the themes maintainers about it. would be a great improvement to change themes without rebooting.

otherwise the issue looks quite familiar to me.
what i have to offer you concerning this is:
a) processgroups
b) lsof, fuser and the like

yes, busybox is crappy. you will want some working tools if you are looking into this...
as a sidenote you might get into real fun if you look closer at it.

Originally Posted by d-iivil View Post
I don't want to replicate the behaviour, but it would indeed be nice to know how the personalisation_app is doing the things.

I already tried scanning the DBus and there's no (extra) activity there.
Last edited by lunat; 2010-11-25 at 11:07.
 

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d-iivil is offline d-iivil
2010-11-25 , 13:16
Posts: 2,154 | Thanked: 2,186 times | Joined on Dec 2009 @ Hellsinki, Finland
#13
Originally Posted by Diph View Post
What does the hildon-desktop theme option do?

hildon-desktop -theme theme : Load the specified theme
Doesn't seem to do anything. The command can't be entered while hildon-desktop is running, and shutting down it first brings us back to original problem (Qt apps won't survive the hildon-home restart if they are running). Even after I've shut down the hildon-home with dsmetool and then bring it back to life with -theme argument, nothing is changed. I've tried to offer it these:
-theme name_of_the_theme
-theme /path/to/the/theme
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nicolai is offline nicolai
2010-11-25 , 13:31
Posts: 1,637 | Thanked: 4,424 times | Joined on Apr 2009 @ Germany
#14
Hi D-Iivil,
why do you think the personalisation_app can do something that
your app cannot?
I mean, if you do
Originally Posted by d-iivil View Post
At least for me the following behaviour is reproducable:
- open some Qt application which has at least one QComboBox or some menus on top bar to tap to
- run "killall hildon-desktop" or "dsmetool -k /usr/bin/hildon-desktop; dsmetool -t -U user /usr/bin/hildon-desktop"
- change theme with hildon buildin theme chooser
is the behavior differently?

Nicolai
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d-iivil is offline d-iivil
2010-11-25 , 16:24
Posts: 2,154 | Thanked: 2,186 times | Joined on Dec 2009 @ Hellsinki, Finland
#15
Originally Posted by nicolai View Post
Hi D-Iivil,
why do you think the personalisation_app can do something that
your app cannot?
I mean, if you do


is the behavior differently?

Nicolai
I find it too much trouble for the user if he needs to go swap themes back and forth just to be able to see his new icons...

There_must_be_a_way to clear those caches and silently reload hildon-desktop without opening the personalisation_app.

Edit: didn't catch your actual question. Yes, the outcome is different. Qt apps (or any other) won't freak out when using personalisation_app.
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jstokes is offline jstokes
2010-11-26 , 11:05
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#16
Why not just reapply the theme? personalisation_app also comes with a command line counterpart. Otherwise, just read the source of any GTK+ theme switching app: Considering you're dealing with windows, it's unlikely D-Bus will play a part, look at X's Atoms, Properties and stuff. Perhaps http://code.google.com/p/gtk-theme-s...rc/utils.c#160 may be enough
 

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d-iivil is offline d-iivil
2010-11-27 , 18:48
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#17
Originally Posted by jstokes View Post
Why not just reapply the theme? personalisation_app also comes with a command line counterpart. Otherwise, just read the source of any GTK+ theme switching app: Considering you're dealing with windows, it's unlikely D-Bus will play a part, look at X's Atoms, Properties and stuff. Perhaps http://code.google.com/p/gtk-theme-s...rc/utils.c#160 may be enough
I'd be very very intrested in those personalisation_app's command line options. Do you have more info about those? I've tried to offer it many kinds of switches with no response at all (well, best I've got is segfault :P).

Edit: forgot to mention that I've already tried to compile some standard gtk-theme-switchers with success, but unfortunately none of those will actually change anything. I guess it needs some hildon specific stuff which I don't have a glue
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Last edited by d-iivil; 2010-11-27 at 19:27.
 
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nicolai is offline nicolai
2011-03-16 , 15:40
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#18
Originally Posted by d-iivil View Post
I'd be very very intrested in those personalisation_app's command line options. Do you have more info about those? I've tried to offer it many kinds of switches with no response at all (well, best I've got is segfault :P).

Edit: forgot to mention that I've already tried to compile some standard gtk-theme-switchers with success, but unfortunately none of those will actually change anything. I guess it needs some hildon specific stuff which I don't have a glue
Have you tried matchbox-remote?
For example
/usr/bin/personalisation /usr/share/themes/beta
/usr/bin/matchbox-remote -t beta

switches to the theme "beta".

regards
Nicolai
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ivgalvez is offline ivgalvez
2011-03-16 , 15:48
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#19
It's also problematic with DrLaunch:
http://talk.maemo.org/showpost.php?p...&postcount=198
 
jstokes is offline jstokes
2011-04-18 , 18:23
Posts: 235 | Thanked: 339 times | Joined on Nov 2010
#20
Originally Posted by d-iivil View Post
Do you have more info about those?
Hi,

I've come back to this after a while, sorry for abandoning the thread!

I've only tested this in Scratchbox (strace etc. on personalisation_app worked wonders ), but hopefully, it should work for refreshing the theme. If it doesn't work, you may have to switch to another theme because the underlying components realise that you're reapplying the same theme; if that's the case, I don't know what to do

PHP Code:
#include <stdlib.h>
#include <string.h>
#include <libgen.h>
#include <X11/Xatom.h>
#include <gdk/gdkx.h>
#include <gtk/gtk.h>

struct _theme_info
{
    gchar *base_path;
    gchar *theme_name;
};

static gboolean current_theme_info (struct _theme_info *theme_info)
{
    #define THEME_DIR "/etc/hildon/theme"
    #define INDEX_THEME_FILE G_DIR_SEPARATOR_S "index.theme"
    #define STD_INDEX_LOC THEME_DIR INDEX_THEME_FILE

    gboolean retval = FALSE;
    gchar *linkdest1 = NULL, *linkdest2 = NULL;
    GKeyFile *theme_key = g_key_file_new();

    if ((!g_file_test (STD_INDEX_LOC, G_FILE_TEST_EXISTS)) || (!g_key_file_load_from_file (theme_key, STD_INDEX_LOC, G_KEY_FILE_NONE, NULL)) || !(theme_info->theme_name = g_key_file_get_string (theme_key, "Desktop Entry", "Name", NULL)))
        goto getout;

    linkdest1 = g_file_read_link (THEME_DIR, NULL);
    if (!linkdest1) goto getout;

    linkdest2 = g_file_read_link (linkdest1, NULL); /* Is it a folder that's symlinked to another, like: default->alpha? */
    theme_info->base_path = g_path_get_basename (linkdest2 ? linkdest2 : linkdest1);

    retval = theme_info->base_path != NULL;

getout:
    g_free (linkdest2);
    g_free (linkdest1);
    g_key_file_free (theme_key);

    return retval;

#undef STD_INDEX_LOC
#undef INDEX_THEME_FILE
#undef THEME_DIR
}

static gboolean update_symbolic_link (const gchar *newtheme)
{
    gboolean retval = FALSE;

    if (newtheme)
    {
        gint exit_status;
        gchar *cmdline;

        cmdline = g_strdup_printf ("%s %s/%s", "/usr/bin/personalisation", "/usr/share/themes", newtheme);
        retval = g_spawn_command_line_sync (cmdline, NULL, NULL, &exit_status, NULL) || exit_status != 0;
        g_free (cmdline);
    }
    
    return retval;
}

static void send_refresh_signal (void)
{
    GdkEventClient event;

    event.type = GDK_CLIENT_EVENT;
    event.send_event = TRUE;
    event.window = NULL;
    event.message_type = gdk_atom_intern ("_GTK_READ_RCFILES", FALSE);
    event.data_format = 8;

    gdk_event_send_clientmessage_toall ((GdkEvent *) &event);
}

static void refresh_matchbox (const gchar *base_path)
{
    Display *disp = XOpenDisplay (getenv ("DISPLAY"));
    Atom _MB_THEME = XInternAtom (disp, "_MB_THEME", False);

    if (_MB_THEME != None)
    {
        Window root = DefaultRootWindow(disp);
        XChangeProperty (disp, root, _MB_THEME, XA_STRING, 8, PropModeReplace, (unsigned char*) base_path, strlen (base_path));

        Atom _MB_COMMAND = XInternAtom (disp, "_MB_COMMAND", False);
        if (_MB_COMMAND != None)
        {
            XEvent ev = { '\0', };

            ev.xclient.type = ClientMessage;
            ev.xclient.window = root;
            ev.xclient.message_type = _MB_COMMAND;
            ev.xclient.format = 8;
            ev.xclient.data.l[0] = 1;
            
            XSendEvent(disp, root, False, SubstructureRedirectMask|SubstructureNotifyMask, &ev);
        }
        
        XSync (disp, True);
    }
    
    XCloseDisplay (disp);
}

int main (int argc, char *argv[])
{
    struct _theme_info theme_info;
    gtk_init (&argc, &argv);
    
    g_assert (current_theme_info(&theme_info));

    if (!update_symbolic_link (theme_info.base_path))
        return 1; /* Fails in my SB - "invalid cross-device link */

    GtkSettings *settings = gtk_settings_get_default();
    gtk_settings_set_string_property (settings, "gtk-theme-name", theme_info.theme_name, basename(argv[0]));
    //g_object_notify (G_OBJECT (settings), "gtk-theme-name");
    gtk_rc_reset_styles (settings);

    send_refresh_signal();

    gchar *maemo_launcher_pid_s;
    if (g_file_get_contents ("/tmp/maemo-launcher.pid", &maemo_launcher_pid_s, NULL, NULL))
    {
        pid_t maemo_launcher_pid = (pid_t) atoi (maemo_launcher_pid_s);
        if (maemo_launcher_pid > 0) kill (maemo_launcher_pid, SIGHUP);
        g_free (maemo_launcher_pid_s);
    }
    
    refresh_matchbox (theme_info.base_path);

    g_free (theme_info.base_path);
    g_free (theme_info.theme_name);

    return 0;
} 
Just using gtk+-2.0 for pkg-config works to compile it
Last edited by jstokes; 2011-04-18 at 18:30.
 

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