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Diffstat (limited to 'gst-mixer-applet/load.c')
| -rw-r--r-- | gst-mixer-applet/load.c | 181 |
1 files changed, 181 insertions, 0 deletions
diff --git a/gst-mixer-applet/load.c b/gst-mixer-applet/load.c new file mode 100644 index 0000000..684a3a5 --- /dev/null +++ b/gst-mixer-applet/load.c @@ -0,0 +1,181 @@ +/* MATE Volume Applet + * Copyright (C) 2004 Ronald Bultje <[email protected]> + * + * load.c: applet boilerplate code + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, + * Boston, MA 02110-1301, USA. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <string.h> + +#include <glib.h> +#include <gst/audio/mixerutils.h> + +#include "applet.h" + +typedef struct _FilterHelper { + GList *names_list; + gint count; +} FilterHelper; + + +static gboolean +_filter_func (GstMixer *mixer, gpointer data) { + GstElementFactory *factory; + const gchar *longname; + FilterHelper *helper = (FilterHelper *)data; + gchar *device = NULL; + gchar *name, *original; + + /* fetch name */ + if (g_object_class_find_property (G_OBJECT_GET_CLASS (G_OBJECT (mixer)), "device-name")) { + g_object_get (mixer, "device-name", &device, NULL); + GST_DEBUG ("device-name: %s", GST_STR_NULL (device)); + } else { + GST_DEBUG ("no 'device-name' property: device name unknown"); + } + + factory = gst_element_get_factory (GST_ELEMENT (mixer)); + longname = gst_element_factory_get_longname (factory); + + if (device) { + GList *list; + gint duplicates = 0; + + name = g_strdup_printf ("%s (%s)", device, longname); + g_free (device); + + /* Devices are sorted by names, we must ensure that the names are unique */ + for (list = helper->names_list; list != NULL; list = list->next) { + if (strcmp ((const gchar *) list->data, name) == 0) + duplicates++; + } + + if (duplicates > 0) { + /* + * There is a duplicate name, so append an index to make the name + * unique within the list + */ + original = name; + name = g_strdup_printf("%s #%d", name, duplicates + 1); + } else { + original = g_strdup(name); + } + } else { + gchar *title; + + (helper->count)++; + + title = g_strdup_printf (_("Unknown Volume Control %d"), helper->count); + name = g_strdup_printf ("%s (%s)", title, longname); + original = g_strdup(name); + g_free (title); + } + + helper->names_list = g_list_prepend (helper->names_list, name); + + GST_DEBUG ("Adding '%s' to the list of available mixers", name); + + g_object_set_data_full (G_OBJECT (mixer), + "mate-volume-applet-name", + name, + (GDestroyNotify) g_free); + + /* Is this even used anywhere? */ + g_object_set_data_full (G_OBJECT(mixer), + "mate-volume-applet-origname", + original, + (GDestroyNotify) g_free); + + name = NULL; /* no need to free, passed ownership to object data */ + original = NULL; /* no need to free, passed ownership to object data */ + + gst_element_set_state (GST_ELEMENT (mixer), GST_STATE_NULL); + + return TRUE; +} + +GList * +mate_volume_applet_create_mixer_collection (void) +{ + FilterHelper helper; + GList *mixer_list; + + helper.count = 0; + helper.names_list = NULL; + + mixer_list = gst_audio_default_registry_mixer_filter(_filter_func, FALSE, &helper); + g_list_free (helper.names_list); + + return mixer_list; +} + +static gboolean +mate_volume_applet_toplevel_configure_handler (GtkWidget *widget, + GdkEventConfigure *event, + gpointer data) +{ + GList *elements; + static gboolean init = FALSE; + + g_signal_handlers_disconnect_by_func (widget, + mate_volume_applet_toplevel_configure_handler, + data); + + if (!init) { + gst_init (NULL, NULL); + init = TRUE; + } + + elements = mate_volume_applet_create_mixer_collection (); + mate_volume_applet_setup (MATE_VOLUME_APPLET (data), elements); + + return FALSE; +} + +static gboolean +mate_volume_applet_factory (MatePanelApplet *applet, + const gchar *iid, + gpointer data) +{ + /* we delay applet specific initialization until the applet + * is fully registered with the panel since gst_init() can block + * for longer than the service activation timeouts + * + * We use configure-event as a hook because after the applet is + * registered with b-a-s and the panel, the panel sets size hints + * on the applet and gives it an initial size. + * + * http://bugzilla.mate.org/show_bug.cgi?id=385305 + */ + g_signal_connect (gtk_widget_get_toplevel (GTK_WIDGET (applet)), + "configure-event", + G_CALLBACK (mate_volume_applet_toplevel_configure_handler), + applet); + return TRUE; +} + +MATE_PANEL_APPLET_OUT_PROCESS_FACTORY ( + "MixerAppletFactory", + MATE_TYPE_VOLUME_APPLET, + "mixer_applet2", + mate_volume_applet_factory, + NULL +) |