[gnome-panel] libgnome-panel: initial version
- From: Alberts Muktupāvels <muktupavels src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [gnome-panel] libgnome-panel: initial version
- Date: Mon, 17 Oct 2016 17:05:31 +0000 (UTC)
commit da42530dfee2f4b729964a2c211639836a16b384
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date: Mon Oct 17 19:56:36 2016 +0300
libgnome-panel: initial version
COPYING.LESSER | 502 ++++++++++++++++
Makefile.am | 1 +
configure.ac | 14 +
data/Makefile.am | 1 +
data/pkgconfig/Makefile.am | 14 +
data/pkgconfig/libgnome-panel.pc.in | 12 +
libgnome-panel/Makefile.am | 77 +++
libgnome-panel/gp-applet-info-private.h | 38 ++
libgnome-panel/gp-applet-info.c | 91 +++
libgnome-panel/gp-applet-info.h | 44 ++
libgnome-panel/gp-applet-private.h | 45 ++
libgnome-panel/gp-applet.c | 968 +++++++++++++++++++++++++++++++
libgnome-panel/gp-applet.h | 126 ++++
libgnome-panel/gp-enum-types.c.in | 37 ++
libgnome-panel/gp-enum-types.h.in | 21 +
libgnome-panel/gp-module-info-private.h | 39 ++
libgnome-panel/gp-module-info.c | 84 +++
libgnome-panel/gp-module-info.h | 39 ++
libgnome-panel/gp-module.h | 126 ++++
19 files changed, 2279 insertions(+), 0 deletions(-)
---
diff --git a/COPYING.LESSER b/COPYING.LESSER
new file mode 100644
index 0000000..e5ab03e
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+++ b/COPYING.LESSER
@@ -0,0 +1,502 @@
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diff --git a/Makefile.am b/Makefile.am
index 1e35d54..bf62d4d 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,6 +1,7 @@
NULL =
SUBDIRS = \
+ libgnome-panel \
gnome-panel \
libpanel-applet \
applets \
diff --git a/configure.ac b/configure.ac
index 118e0c8..063de8f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -68,6 +68,9 @@ LT_LIB_M
LIB_PANEL_APPLET_LT_VERSION=2:0:0
AC_SUBST(LIB_PANEL_APPLET_LT_VERSION)
+LIBGNOME_PANEL_LT_VERSION=0:0:0
+AC_SUBST([LIBGNOME_PANEL_LT_VERSION])
+
AC_ARG_ENABLE([documentation],
AS_HELP_STRING([--enable-documentation], [enable man pages and HTML]),
[], [enable_documentation=yes])
@@ -80,6 +83,7 @@ AC_PROG_CC
AM_PATH_PYTHON
AC_PATH_PROG(GLIB_GENMARSHAL, glib-genmarshal)
AC_PATH_PROG(GLIB_COMPILE_RESOURCES, glib-compile-resources)
+AC_PATH_PROG([GLIB_MKENUMS], [glib-mkenums])
GLIB_GSETTINGS
@@ -122,6 +126,11 @@ PKG_CHECK_MODULES([PANEL], [
xrandr >= $XRANDR_REQUIRED
])
+PKG_CHECK_MODULES([LIBGNOME_PANEL], [
+ gio-2.0 >= $GLIB_REQUIRED
+ gtk+-3.0 >= $GTK_REQUIRED
+])
+
PKG_CHECK_MODULES([LIBPANEL_APPLET], [
gtk+-3.0 >= $GTK_REQUIRED
cairo-xlib
@@ -248,6 +257,9 @@ AC_CONFIG_FILES([
data/48x48/Makefile
data/scalable/Makefile
+ data/pkgconfig/Makefile
+ data/pkgconfig/libgnome-panel.pc
+
data/theme/Makefile
data/theme/Adwaita/Makefile
data/theme/HighContrast/Makefile
@@ -256,6 +268,8 @@ AC_CONFIG_FILES([
gnome-panel/libpanel-applet-private/Makefile
gnome-panel/libpanel-util/Makefile
+ libgnome-panel/Makefile
+
libpanel-applet/Makefile
libpanel-applet/libpanel-applet.pc
diff --git a/data/Makefile.am b/data/Makefile.am
index 70e1ad5..6ca9dc9 100644
--- a/data/Makefile.am
+++ b/data/Makefile.am
@@ -2,6 +2,7 @@ NULL =
SUBDIRS = \
16x16 22x22 24x24 32x32 48x48 scalable \
+ pkgconfig \
theme \
$(NULL)
diff --git a/data/pkgconfig/Makefile.am b/data/pkgconfig/Makefile.am
new file mode 100644
index 0000000..9eeeaa0
--- /dev/null
+++ b/data/pkgconfig/Makefile.am
@@ -0,0 +1,14 @@
+NULL =
+
+pkgconfigdir = $(libdir)/pkgconfig
+pkgconfig_DATA = libgnome-panel.pc
+
+EXTRA_DIST = \
+ libgnome-panel.pc.in \
+ $(NULL)
+
+CLEANFILES = \
+ $(pkgconfig_DATA) \
+ $(NULL)
+
+-include $(top_srcdir)/git.mk
diff --git a/data/pkgconfig/libgnome-panel.pc.in b/data/pkgconfig/libgnome-panel.pc.in
new file mode 100644
index 0000000..815863c
--- /dev/null
+++ b/data/pkgconfig/libgnome-panel.pc.in
@@ -0,0 +1,12 @@
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@
+appletsdir=@libdir@/gnome-panel/applets
+
+Name: libgnome-panel
+Description: libgnome-panel
+Requires: glib-2.0 gtk+-3.0
+Version: @VERSION@
+Libs: -L${libdir} -lgnome-panel
+Cflags: -I${includedir}/gnome-panel
diff --git a/libgnome-panel/Makefile.am b/libgnome-panel/Makefile.am
new file mode 100644
index 0000000..78d3b50
--- /dev/null
+++ b/libgnome-panel/Makefile.am
@@ -0,0 +1,77 @@
+NULL =
+
+lib_LTLIBRARIES = libgnome-panel.la
+
+libgnome_panel_la_SOURCES = \
+ gp-applet.c \
+ gp-applet.h \
+ gp-applet-info.c \
+ gp-applet-info.h \
+ gp-applet-info-private.h \
+ gp-applet-private.h \
+ gp-module.h \
+ gp-module-info.c \
+ gp-module-info.h \
+ gp-module-info-private.h \
+ $(BUILT_SOURCES) \
+ $(NULL)
+
+libgnome_panel_la_CPPFLAGS = \
+ -DG_LOG_DOMAIN=\"libgnome-panel\" \
+ -DG_LOG_USE_STRUCTURED=1 \
+ -I$(top_srcdir) \
+ $(AM_CPPFLAGS) \
+ $(NULL)
+
+libgnome_panel_la_CFLAGS = \
+ $(LIBGNOME_PANEL_CFLAGS) \
+ $(WARN_CFLAGS) \
+ $(AM_CFLAGS) \
+ $(NULL)
+
+libgnome_panel_la_LDFLAGS = \
+ -version-info $(LIBGNOME_PANEL_LT_VERSION) \
+ $(WARN_LDFLAGS) \
+ $(AM_LDFLAGS) \
+ $(NULL)
+
+libgnome_panel_la_LIBADD = \
+ $(LIBGNOME_PANEL_LIBS) \
+ $(NULL)
+
+libgnome_panel_includedir = $(includedir)/gnome-panel/libgnome-panel
+libgnome_panel_include_HEADERS = \
+ gp-applet.h \
+ gp-applet-info.h \
+ gp-enum-types.h \
+ gp-module.h \
+ gp-module-info.h \
+ $(NULL)
+
+ENUM_TYPES = \
+ $(srcdir)/gp-applet.h \
+ $(NULL)
+
+gp-enum-types.c: gp-enum-types.c.in gp-enum-types.h $(ENUM_TYPES)
+ $(AM_V_GEN) $(GLIB_MKENUMS) --template $(srcdir)/gp-enum-types.c.in $(ENUM_TYPES) > \
+ gp-enum-types.c.tmp && mv gp-enum-types.c.tmp gp-enum-types.c
+
+gp-enum-types.h: gp-enum-types.h.in $(ENUM_TYPES)
+ $(AM_V_GEN) $(GLIB_MKENUMS) --template $(srcdir)/gp-enum-types.h.in $(ENUM_TYPES) > \
+ gp-enum-types.h.tmp && mv gp-enum-types.h.tmp gp-enum-types.h
+
+BUILT_SOURCES = \
+ gp-enum-types.c \
+ gp-enum-types.h \
+ $(NULL)
+
+EXTRA_DIST = \
+ gp-enum-types.c.in \
+ gp-enum-types.h.in \
+ $(NULL)
+
+CLEANFILES = \
+ $(BUILT_SOURCES) \
+ $(NULL)
+
+-include $(top_srcdir)/git.mk
diff --git a/libgnome-panel/gp-applet-info-private.h b/libgnome-panel/gp-applet-info-private.h
new file mode 100644
index 0000000..63eff02
--- /dev/null
+++ b/libgnome-panel/gp-applet-info-private.h
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2016 Alberts Muktupāvels
+ *
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 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 Lesser General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef GP_APPLET_INFO_PRIVATE_H
+#define GP_APPLET_INFO_PRIVATE_H
+
+#include "libgnome-panel/gp-applet-info.h"
+
+struct _GpAppletInfo
+{
+ gchar *name;
+ gchar *description;
+ gchar *icon;
+
+ gchar *help_uri;
+
+ gchar *backends;
+};
+
+void gp_applet_info_free (GpAppletInfo *info);
+
+G_END_DECLS
+
+#endif
diff --git a/libgnome-panel/gp-applet-info.c b/libgnome-panel/gp-applet-info.c
new file mode 100644
index 0000000..01bf35c
--- /dev/null
+++ b/libgnome-panel/gp-applet-info.c
@@ -0,0 +1,91 @@
+/*
+ * Copyright (C) 2016 Alberts Muktupāvels
+ *
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 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 Lesser General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include "gp-applet-info-private.h"
+
+/**
+ * gp_applet_info_new:
+ * @name: the name of this applet
+ * @description: the description of this applet
+ * @icon: the icon name for this applet
+ *
+ * Creates a new #GpAppletInfo.
+ *
+ * Returns: (transfer full): a newly created #GpAppletInfo.
+ */
+GpAppletInfo *
+gp_applet_info_new (const gchar *name,
+ const gchar *description,
+ const gchar *icon)
+{
+ GpAppletInfo *info;
+
+ info = g_new0 (GpAppletInfo, 1);
+
+ info->name = g_strdup (name);
+ info->description = g_strdup (description);
+ info->icon = g_strdup (icon);
+
+ return info;
+}
+
+/**
+ * gp_applet_info_set_backends:
+ * @info: a #GpAppletInfo
+ * @backends: (nullable): a comma-separated list of backends
+ *
+ * Sets a list of backends that this applet supports.
+ */
+void
+gp_applet_info_set_backends (GpAppletInfo *info,
+ const gchar *backends)
+{
+ g_free (info->backends);
+ info->backends = g_strdup (backends);
+}
+
+/**
+ * gp_applet_info_set_help_uri:
+ * @info: a #GpAppletInfo
+ * @help_uri: the help uri
+ *
+ * Sets the help uri.
+ */
+void
+gp_applet_info_set_help_uri (GpAppletInfo *info,
+ const gchar *help_uri)
+{
+ g_free (info->help_uri);
+ info->help_uri = g_strdup (help_uri);
+}
+
+void
+gp_applet_info_free (GpAppletInfo *info)
+{
+ if (info == NULL)
+ return;
+
+ g_free (info->name);
+ g_free (info->description);
+ g_free (info->icon);
+ g_free (info->help_uri);
+ g_free (info->backends);
+
+ g_free (info);
+}
diff --git a/libgnome-panel/gp-applet-info.h b/libgnome-panel/gp-applet-info.h
new file mode 100644
index 0000000..135e4b9
--- /dev/null
+++ b/libgnome-panel/gp-applet-info.h
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2016 Alberts Muktupāvels
+ *
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 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 Lesser General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef GP_APPLET_INFO_H
+#define GP_APPLET_INFO_H
+
+#include <glib-object.h>
+
+G_BEGIN_DECLS
+
+/**
+ * GpAppletInfo:
+ *
+ * The #GpAppletInfo struct is an opaque data structure.
+ */
+typedef struct _GpAppletInfo GpAppletInfo;
+
+GpAppletInfo *gp_applet_info_new (const gchar *name,
+ const gchar *description,
+ const gchar *icon);
+
+void gp_applet_info_set_backends (GpAppletInfo *info,
+ const gchar *backends);
+
+void gp_applet_info_set_help_uri (GpAppletInfo *info,
+ const gchar *help_uri);
+
+G_END_DECLS
+
+#endif
diff --git a/libgnome-panel/gp-applet-private.h b/libgnome-panel/gp-applet-private.h
new file mode 100644
index 0000000..000462d
--- /dev/null
+++ b/libgnome-panel/gp-applet-private.h
@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2001 Sun Microsystems, Inc.
+ * Copyright (C) 2016 Alberts Muktupāvels
+ *
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 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 Lesser General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, see <https://www.gnu.org/licenses/>.
+ *
+ * Authors:
+ * Alberts Muktupāvels <alberts muktupavels gmail com>
+ * Mark McLoughlin <mark skynet ie>
+ */
+
+#ifndef GP_APPLET_PRIVATE_H
+#define GP_APPLET_PRIVATE_H
+
+#include "libgnome-panel/gp-applet.h"
+
+G_BEGIN_DECLS
+
+void gp_applet_set_locked_down (GpApplet *applet,
+ gboolean locked_down);
+
+void gp_applet_set_orientation (GpApplet *applet,
+ GtkOrientation orientation);
+
+void gp_applet_set_position (GpApplet *applet,
+ GtkPositionType position);
+
+GArray *gp_applet_get_size_hints (GpApplet *applet);
+
+GtkWidget *gp_applet_get_menu (GpApplet *applet);
+
+G_END_DECLS
+
+#endif
diff --git a/libgnome-panel/gp-applet.c b/libgnome-panel/gp-applet.c
new file mode 100644
index 0000000..495ca20
--- /dev/null
+++ b/libgnome-panel/gp-applet.c
@@ -0,0 +1,968 @@
+/*
+ * Copyright (C) 2001 Sun Microsystems, Inc.
+ * Copyright (c) 2010 Carlos Garcia Campos
+ * Copyright (C) 2016 Alberts Muktupāvels
+ *
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 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 Lesser General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, see <https://www.gnu.org/licenses/>.
+ *
+ * Authors:
+ * Alberts Muktupāvels <alberts muktupavels gmail com>
+ * Carlos Garcia Campos <carlosgc gnome org>
+ * Mark McLoughlin <mark skynet ie>
+ */
+
+#include "config.h"
+
+#include "gp-applet-private.h"
+#include "gp-enum-types.h"
+
+typedef struct
+{
+ GtkBuilder *builder;
+ GSimpleActionGroup *action_group;
+
+ gchar *id;
+ gchar *settings_path;
+ gchar *translation_domain;
+ gboolean locked_down;
+ GtkOrientation orientation;
+ GtkPositionType position;
+ GpAppletFlags flags;
+ GArray *size_hints;
+} GpAppletPrivate;
+
+enum
+{
+ PROP_0,
+
+ PROP_ID,
+ PROP_SETTINGS_PATH,
+ PROP_TRANSLATION_DOMAIN,
+ PROP_LOCKED_DOWN,
+ PROP_ORIENTATION,
+ PROP_POSITION,
+ PROP_FLAGS,
+ PROP_SIZE_HINTS,
+
+ LAST_PROP
+};
+
+static GParamSpec *properties[LAST_PROP] = { NULL };
+
+enum
+{
+ LOCKED_DOWN_CHANGED,
+ PLACEMENT_CHANGED,
+
+ LAST_SIGNAL
+};
+
+static guint signals[LAST_SIGNAL] = { 0 };
+
+G_DEFINE_TYPE_WITH_PRIVATE (GpApplet, gp_applet, GTK_TYPE_EVENT_BOX)
+
+static gboolean
+size_hints_changed (GpAppletPrivate *priv,
+ const gint *size_hints,
+ guint n_elements,
+ gint base_size)
+{
+ GArray *array;
+ guint i;
+
+ array = priv->size_hints;
+
+ if (!array)
+ return TRUE;
+
+ if (array->len != n_elements)
+ return TRUE;
+
+ for (i = 0; i < n_elements; i++)
+ {
+ if (g_array_index (array, gint, i) != size_hints[i] + base_size)
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+static void
+gp_applet_constructed (GObject *object)
+{
+ GpApplet *applet;
+ GpAppletPrivate *priv;
+ GActionGroup *group;
+
+ G_OBJECT_CLASS (gp_applet_parent_class)->constructed (object);
+
+ applet = GP_APPLET (object);
+ priv = gp_applet_get_instance_private (applet);
+
+ gtk_builder_set_translation_domain (priv->builder, priv->translation_domain);
+
+ group = G_ACTION_GROUP (priv->action_group);
+ gtk_widget_insert_action_group (GTK_WIDGET (applet), priv->id, group);
+}
+
+static void
+gp_applet_dispose (GObject *object)
+{
+ GpApplet *applet;
+ GpAppletPrivate *priv;
+
+ applet = GP_APPLET (object);
+ priv = gp_applet_get_instance_private (applet);
+
+ g_clear_object (&priv->builder);
+ g_clear_object (&priv->action_group);
+
+ G_OBJECT_CLASS (gp_applet_parent_class)->dispose (object);
+}
+
+static void
+gp_applet_finalize (GObject *object)
+{
+ GpApplet *applet;
+ GpAppletPrivate *priv;
+
+ applet = GP_APPLET (object);
+ priv = gp_applet_get_instance_private (applet);
+
+ g_clear_pointer (&priv->id, g_free);
+ g_clear_pointer (&priv->settings_path, g_free);
+ g_clear_pointer (&priv->translation_domain, g_free);
+ g_clear_pointer (&priv->size_hints, g_array_unref);
+
+ G_OBJECT_CLASS (gp_applet_parent_class)->finalize (object);
+}
+
+static void
+gp_applet_get_property (GObject *object,
+ guint property_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ GpApplet *applet;
+ GpAppletPrivate *priv;
+
+ applet = GP_APPLET (object);
+ priv = gp_applet_get_instance_private (applet);
+
+ switch (property_id)
+ {
+ case PROP_ID:
+ g_value_set_string (value, priv->id);
+ break;
+
+ case PROP_SETTINGS_PATH:
+ g_value_set_string (value, priv->settings_path);
+ break;
+
+ case PROP_TRANSLATION_DOMAIN:
+ g_value_set_string (value, priv->translation_domain);
+ break;
+
+ case PROP_LOCKED_DOWN:
+ g_value_set_boolean (value, priv->locked_down);
+ break;
+
+ case PROP_ORIENTATION:
+ g_value_set_enum (value, priv->orientation);
+ break;
+
+ case PROP_POSITION:
+ g_value_set_enum (value, priv->position);
+ break;
+
+ case PROP_FLAGS:
+ g_value_set_flags (value, priv->flags);
+ break;
+
+ case PROP_SIZE_HINTS:
+ g_value_set_boxed (value, priv->size_hints);
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+ break;
+ }
+}
+
+static void
+gp_applet_set_property (GObject *object,
+ guint property_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ GpApplet *applet;
+ GpAppletPrivate *priv;
+
+ applet = GP_APPLET (object);
+ priv = gp_applet_get_instance_private (applet);
+
+ switch (property_id)
+ {
+ case PROP_ID:
+ g_assert (priv->id == NULL);
+ priv->id = g_value_dup_string (value);
+ break;
+
+ case PROP_SETTINGS_PATH:
+ g_assert (priv->settings_path == NULL);
+ priv->settings_path = g_value_dup_string (value);
+ break;
+
+ case PROP_TRANSLATION_DOMAIN:
+ g_assert (priv->translation_domain == NULL);
+ priv->translation_domain = g_value_dup_string (value);
+ break;
+
+ case PROP_LOCKED_DOWN:
+ gp_applet_set_locked_down (applet, g_value_get_boolean (value));
+ break;
+
+ case PROP_ORIENTATION:
+ gp_applet_set_orientation (applet, g_value_get_enum (value));
+ break;
+
+ case PROP_POSITION:
+ gp_applet_set_position (applet, g_value_get_enum (value));
+ break;
+
+ case PROP_FLAGS:
+ gp_applet_set_flags (applet, g_value_get_flags (value));
+ break;
+
+ case PROP_SIZE_HINTS:
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+ break;
+ }
+}
+
+static gboolean
+gp_applet_draw (GtkWidget *widget,
+ cairo_t *cr)
+{
+ gboolean ret;
+ GtkStyleContext *context;
+ gdouble width;
+ gdouble height;
+
+ ret = GTK_WIDGET_CLASS (gp_applet_parent_class)->draw (widget, cr);
+
+ if (!gtk_widget_has_focus (widget))
+ return ret;
+
+ context = gtk_widget_get_style_context (widget);
+ width = gtk_widget_get_allocated_width (widget);
+ height = gtk_widget_get_allocated_height (widget);
+
+ gtk_render_focus (context, cr, 0, 0, width, height);
+
+ return ret;
+}
+
+static gboolean
+gp_applet_focus (GtkWidget *widget,
+ GtkDirectionType dir)
+{
+ GtkWidget *focus_child;
+ gboolean ret;
+
+ focus_child = gtk_container_get_focus_child (GTK_CONTAINER (widget));
+
+ if (!focus_child && !gtk_widget_has_focus (widget) &&
+ gtk_widget_get_has_tooltip (widget))
+ {
+ gtk_widget_set_can_focus (widget, TRUE);
+ gtk_widget_grab_focus (widget);
+ gtk_widget_set_can_focus (widget, FALSE);
+
+ return TRUE;
+ }
+
+ ret = GTK_WIDGET_CLASS (gp_applet_parent_class)->focus (widget, dir);
+
+ if (!ret && !focus_child && !gtk_widget_has_focus (widget))
+ {
+ /* Applet does not have a widget which can focus so set the focus on
+ * the applet unless it already had focus because it had a tooltip.
+ */
+ gtk_widget_set_can_focus (widget, TRUE);
+ gtk_widget_grab_focus (widget);
+ gtk_widget_set_can_focus (widget, FALSE);
+
+ return TRUE;
+ }
+
+ return ret;
+}
+
+static GtkSizeRequestMode
+gp_applet_get_request_mode (GtkWidget *widget)
+{
+ GpApplet *applet;
+ GpAppletPrivate *priv;
+
+ applet = GP_APPLET (widget);
+ priv = gp_applet_get_instance_private (applet);
+
+ if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
+ return GTK_SIZE_REQUEST_HEIGHT_FOR_WIDTH;
+
+ return GTK_SIZE_REQUEST_WIDTH_FOR_HEIGHT;
+}
+
+static void
+install_properties (GObjectClass *object_class)
+{
+ /**
+ * GpApplet:id:
+ *
+ * The applet id.
+ */
+ properties[PROP_ID] =
+ g_param_spec_string ("id", "Id", "Id", NULL,
+ G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE |
+ G_PARAM_STATIC_STRINGS);
+
+ /**
+ * GpApplet:settings-path:
+ *
+ * The GSettings path to the per-instance settings of the applet.
+ */
+ properties[PROP_SETTINGS_PATH] =
+ g_param_spec_string ("settings-path", "Settings Path", "Settings Path",
+ NULL,
+ G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE |
+ G_PARAM_STATIC_STRINGS);
+
+ /**
+ * GpApplet:translation-domain:
+ *
+ * The translation domain.
+ */
+ properties[PROP_TRANSLATION_DOMAIN] =
+ g_param_spec_string ("translation-domain", "Translation Domain",
+ "Translation Domain", NULL,
+ G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE |
+ G_PARAM_STATIC_STRINGS);
+
+ /**
+ * GpApplet:locked-down:
+ *
+ * Whether the applet is on locked down panel.
+ */
+ properties[PROP_LOCKED_DOWN] =
+ g_param_spec_boolean ("locked-down", "Locked Down", "Locked Down",
+ FALSE,
+ G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE |
+ G_PARAM_STATIC_STRINGS);
+
+ /**
+ * GpApplet:orientation:
+ *
+ * The orientation of the panel.
+ */
+ properties[PROP_ORIENTATION] =
+ g_param_spec_enum ("orientation", "Orientation", "Orientation",
+ GTK_TYPE_ORIENTATION, GTK_ORIENTATION_HORIZONTAL,
+ G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE |
+ G_PARAM_STATIC_STRINGS);
+
+ /**
+ * GpApplet:position:
+ *
+ * The position of the panel.
+ */
+ properties[PROP_POSITION] =
+ g_param_spec_enum ("position", "Position", "Position",
+ GTK_TYPE_POSITION_TYPE, GTK_POS_TOP,
+ G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE |
+ G_PARAM_STATIC_STRINGS);
+
+ /**
+ * GpApplet:flags:
+ *
+ * The #GpAppletFlags of the applet.
+ */
+ properties[PROP_FLAGS] =
+ g_param_spec_flags ("flags", "Flags", "Flags",
+ GP_TYPE_APPLET_FLAGS, GP_APPLET_FLAGS_NONE,
+ G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY |
+ G_PARAM_STATIC_STRINGS);
+
+ /**
+ * GpApplet:size-hints:
+ *
+ * The size hints set for the applet. See gp_applet_set_size_hints().
+ */
+ properties[PROP_SIZE_HINTS] =
+ g_param_spec_boxed ("size-hints", "Size Hints", "Size Hints",
+ G_TYPE_ARRAY,
+ G_PARAM_READABLE | G_PARAM_EXPLICIT_NOTIFY |
+ G_PARAM_STATIC_STRINGS);
+
+ g_object_class_install_properties (object_class, LAST_PROP, properties);
+}
+
+static void
+install_signals (void)
+{
+ /**
+ * GpApplet::locked-down-changed:
+ * @applet: the object on which the signal is emitted
+ * @locked_down: the new locked down value
+ *
+ * Signal is emmited when the locked down property of applet has
+ * changed.
+ */
+ signals[LOCKED_DOWN_CHANGED] =
+ g_signal_new ("locked-down-changed", GP_TYPE_APPLET, G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (GpAppletClass, locked_down_changed),
+ NULL, NULL, NULL, G_TYPE_NONE, 1, G_TYPE_BOOLEAN);
+
+ /**
+ * GpApplet::placement-changed:
+ * @applet: the object on which the signal is emitted
+ * @orientation: the new orientation
+ * @position: the new position
+ *
+ * Signal is emitted when the orientation or position properties of
+ * applet has changed.
+ *
+ * Note that gp_applet_get_orientation() or gp_applet_get_position()
+ * functions will return old values in signal handler!
+ */
+ signals[PLACEMENT_CHANGED] =
+ g_signal_new ("placement-changed", GP_TYPE_APPLET, G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (GpAppletClass, placement_changed),
+ NULL, NULL, NULL, G_TYPE_NONE, 2,
+ GTK_TYPE_ORIENTATION, GTK_TYPE_POSITION_TYPE);
+}
+
+static void
+gp_applet_class_init (GpAppletClass *applet_class)
+{
+ GObjectClass *object_class;
+ GtkWidgetClass *widget_class;
+
+ object_class = G_OBJECT_CLASS (applet_class);
+ widget_class = GTK_WIDGET_CLASS (applet_class);
+
+ object_class->constructed = gp_applet_constructed;
+ object_class->dispose = gp_applet_dispose;
+ object_class->finalize = gp_applet_finalize;
+ object_class->get_property = gp_applet_get_property;
+ object_class->set_property = gp_applet_set_property;
+
+ widget_class->draw = gp_applet_draw;
+ widget_class->focus = gp_applet_focus;
+ widget_class->get_request_mode = gp_applet_get_request_mode;
+
+ install_properties (object_class);
+ install_signals ();
+
+ gtk_widget_class_set_css_name (widget_class, "gp-applet");
+}
+
+static void
+gp_applet_init (GpApplet *applet)
+{
+ GpAppletPrivate *priv;
+
+ priv = gp_applet_get_instance_private (applet);
+
+ priv->builder = gtk_builder_new ();
+ priv->action_group = g_simple_action_group_new ();
+}
+
+/**
+ * gp_applet_get_locked_down:
+ * @applet: a #GpApplet
+ *
+ * Gets whether @applet is on locked down panel. A locked down applet
+ * should not allow any change to its configuration.
+ *
+ * Returns: %TRUE if @applet is on locked down panel, %FALSE otherwise.
+ */
+gboolean
+gp_applet_get_locked_down (GpApplet *applet)
+{
+ GpAppletPrivate *priv;
+
+ g_return_val_if_fail (GP_IS_APPLET (applet), FALSE);
+ priv = gp_applet_get_instance_private (applet);
+
+ return priv->locked_down;
+}
+
+void
+gp_applet_set_locked_down (GpApplet *applet,
+ gboolean locked_down)
+{
+ GpAppletPrivate *priv;
+
+ priv = gp_applet_get_instance_private (applet);
+
+ if (priv->locked_down == locked_down)
+ return;
+
+ priv->locked_down = locked_down;
+
+ g_signal_emit (applet, signals[LOCKED_DOWN_CHANGED], 0, locked_down);
+}
+
+/**
+ * gp_applet_get_orientation:
+ * @applet: a #GpApplet
+ *
+ * Returns the orientation of the panel.
+ *
+ * Returns: the orientation of the panel.
+ */
+GtkOrientation
+gp_applet_get_orientation (GpApplet *applet)
+{
+ GpAppletPrivate *priv;
+
+ g_return_val_if_fail (GP_IS_APPLET (applet), GTK_ORIENTATION_HORIZONTAL);
+ priv = gp_applet_get_instance_private (applet);
+
+ return priv->orientation;
+}
+
+void
+gp_applet_set_orientation (GpApplet *applet,
+ GtkOrientation orientation)
+{
+ GpAppletPrivate *priv;
+
+ priv = gp_applet_get_instance_private (applet);
+
+ if (priv->orientation == orientation)
+ return;
+
+ g_signal_emit (applet, signals[PLACEMENT_CHANGED], 0,
+ orientation, priv->position);
+
+ priv->orientation = orientation;
+}
+
+/**
+ * gp_applet_get_position:
+ * @applet: a #GpApplet
+ *
+ * Returns the position of the panel.
+ *
+ * Returns: the position of the panel.
+ */
+GtkPositionType
+gp_applet_get_position (GpApplet *applet)
+{
+ GpAppletPrivate *priv;
+
+ g_return_val_if_fail (GP_IS_APPLET (applet), GTK_POS_TOP);
+ priv = gp_applet_get_instance_private (applet);
+
+ return priv->position;
+}
+
+void
+gp_applet_set_position (GpApplet *applet,
+ GtkPositionType position)
+{
+ GpAppletPrivate *priv;
+
+ priv = gp_applet_get_instance_private (applet);
+
+ if (priv->position == position)
+ return;
+
+ g_signal_emit (applet, signals[PLACEMENT_CHANGED], 0,
+ priv->orientation, position);
+
+ priv->position = position;
+}
+
+/**
+ * gp_applet_get_flags:
+ * @applet: a #GpApplet
+ *
+ * Gets the #GpAppletFlags of @applet.
+ *
+ * Returns: the #GpAppletFlags of @applet.
+ */
+GpAppletFlags
+gp_applet_get_flags (GpApplet *applet)
+{
+ GpAppletPrivate *priv;
+
+ g_return_val_if_fail (GP_IS_APPLET (applet), GP_APPLET_FLAGS_NONE);
+ priv = gp_applet_get_instance_private (applet);
+
+ return priv->flags;
+}
+
+/**
+ * gp_applet_set_flags:
+ * @applet: a #GpApplet
+ * @flags: a #GpAppletFlags to use for @applet
+ *
+ * Sets the #GpAppletFlags of @applet. Most of the time, at least
+ * %GP_APPLET_FLAGS_EXPAND_MINOR should be used.
+ */
+void
+gp_applet_set_flags (GpApplet *applet,
+ GpAppletFlags flags)
+{
+ GpAppletPrivate *priv;
+
+ priv = gp_applet_get_instance_private (applet);
+
+ if (priv->flags == flags)
+ return;
+
+ priv->flags = flags;
+
+ g_object_notify_by_pspec (G_OBJECT (applet), properties[PROP_FLAGS]);
+}
+
+/**
+ * gp_applet_get_size_hints:
+ * @applet: a #GpApplet
+ *
+ * Retrieves the #GArray with size hints.
+ *
+ * Returns: (transfer none): a pointer to a #GArray, or %NULL.
+ */
+GArray *
+gp_applet_get_size_hints (GpApplet *applet)
+{
+ GpAppletPrivate *priv;
+
+ g_return_val_if_fail (GP_IS_APPLET (applet), NULL);
+ priv = gp_applet_get_instance_private (applet);
+
+ return priv->size_hints;
+}
+
+/**
+ * gp_applet_set_size_hints:
+ * @applet: a #GpApplet
+ * @size_hints: (allow-none): array of sizes or %NULL
+ * @n_elements: length of @size_hints
+ * @base_size: base size of the applet
+ *
+ * Give hints to the panel about sizes @applet is comfortable with. This
+ * is generally useful for applets that can take a lot of space, in case
+ * the panel gets full and needs to restrict the size of some applets.
+ *
+ * @size_hints should have an even number of sizes. It is an array of
+ * (max, min) pairs where min(i) > max(i + 1).
+ *
+ * @base_size will be added to all sizes in @size_hints, and is therefore
+ * a way to guarantee a minimum size to @applet.
+ *
+ * The panel will try to allocate a size that is acceptable to @applet,
+ * i.e. in one of the (@base_size + max, @base_size + min) ranges.
+ *
+ * %GP_APPLET_FLAGS_EXPAND_MAJOR must be set for @applet to use size hints.
+ */
+void
+gp_applet_set_size_hints (GpApplet *applet,
+ const gint *size_hints,
+ guint n_elements,
+ gint base_size)
+{
+ GpAppletPrivate *priv;
+ guint i;
+
+ g_return_if_fail (GP_IS_APPLET (applet));
+ priv = gp_applet_get_instance_private (applet);
+
+ if (!size_hints && priv->size_hints)
+ {
+ g_clear_pointer (&priv->size_hints, g_array_unref);
+ g_object_notify_by_pspec (G_OBJECT (applet),
+ properties[PROP_SIZE_HINTS]);
+
+ return;
+ }
+
+ if (!size_hints_changed (priv, size_hints, n_elements, base_size))
+ return;
+
+ if (!priv->size_hints)
+ {
+ priv->size_hints = g_array_sized_new (FALSE, FALSE,
+ sizeof (gint),
+ n_elements);
+ }
+ else
+ {
+ g_array_set_size (priv->size_hints, n_elements);
+ }
+
+ for (i = 0; i < n_elements; i++)
+ {
+ gint size;
+
+ size = size_hints[i] + base_size;
+ g_array_insert_val (priv->size_hints, i, size);
+ }
+
+ g_object_notify_by_pspec (G_OBJECT (applet), properties[PROP_SIZE_HINTS]);
+}
+
+/**
+ * gp_applet_settings_new:
+ * @applet: a #GpApplet
+ * @schema: the name of the schema
+ *
+ * Creates a new #GSettings object for the per-instance settings of @applet,
+ * with a given schema.
+ *
+ * Note that you cannot call gp_applet_settings_new() from init() class
+ * method since required property settings-path is not set yet.
+ *
+ * Returns: (transfer full): a newly created #GSettings.
+ */
+GSettings *
+gp_applet_settings_new (GpApplet *applet,
+ const gchar *schema)
+{
+ GpAppletPrivate *priv;
+
+ g_return_val_if_fail (GP_IS_APPLET (applet), NULL);
+ g_return_val_if_fail (schema != NULL, NULL);
+
+ priv = gp_applet_get_instance_private (applet);
+
+ if (!priv->settings_path)
+ {
+ g_assert_not_reached ();
+ return NULL;
+ }
+
+ return g_settings_new_with_path (schema, priv->settings_path);
+}
+
+/**
+ * gp_applet_request_focus:
+ * @applet: a #GpApplet
+ * @timestamp: the timestamp of the user interaction (typically a button
+ * or key press event) which triggered this call
+ *
+ * Requests focus for @applet. There is no guarantee that @applet will
+ * successfully get focus after that call.
+ */
+void
+gp_applet_request_focus (GpApplet *applet,
+ guint32 timestamp)
+{
+ GtkWidget *widget;
+ GtkWidget *toplevel;
+ GdkWindow *window;
+
+ g_return_if_fail (GP_IS_APPLET (applet));
+
+ widget = GTK_WIDGET (applet);
+ toplevel = gtk_widget_get_toplevel (widget);
+
+ if (toplevel == NULL)
+ return;
+
+ window = gtk_widget_get_window (toplevel);
+
+ if (window == NULL)
+ return;
+
+ gdk_window_focus (window, timestamp);
+}
+
+/**
+ * gp_applet_setup_menu:
+ * @applet: a #GpApplet
+ * @xml: a menu XML string
+ * @entries: a pointer to the first item in an %NULL-terminated array
+ * of #GActionEntry structs
+ *
+ * Sets up the context menu of @applet.
+ */
+void
+gp_applet_setup_menu (GpApplet *applet,
+ const gchar *xml,
+ const GActionEntry *entries)
+{
+ GpAppletPrivate *priv;
+ GError *error;
+ GActionMap *action_map;
+
+ g_return_if_fail (GP_IS_APPLET (applet));
+ g_return_if_fail (xml != NULL);
+
+ priv = gp_applet_get_instance_private (applet);
+
+ error = NULL;
+ gtk_builder_add_from_string (priv->builder, xml, -1, &error);
+
+ if (error)
+ {
+ g_warning ("Error setting up menu: %s", error->message);
+ g_error_free (error);
+ }
+
+ action_map = G_ACTION_MAP (priv->action_group);
+ g_action_map_add_action_entries (action_map, entries, -1, applet);
+}
+
+/**
+ * gp_applet_setup_menu_from_file:
+ * @applet: a #GpApplet
+ * @filename: path to a menu XML file
+ * @entries: a pointer to the first item in an %NULL-terminated array
+ * of #GActionEntry structs
+ *
+ * Sets up the context menu of @applet.
+ */
+void
+gp_applet_setup_menu_from_file (GpApplet *applet,
+ const gchar *filename,
+ const GActionEntry *entries)
+{
+ GpAppletPrivate *priv;
+ GError *error;
+ GActionMap *action_map;
+
+ g_return_if_fail (GP_IS_APPLET (applet));
+ g_return_if_fail (filename != NULL);
+
+ priv = gp_applet_get_instance_private (applet);
+
+ error = NULL;
+ gtk_builder_add_from_file (priv->builder, filename, &error);
+
+ if (error)
+ {
+ g_warning ("Error setting up menu: %s", error->message);
+ g_error_free (error);
+ }
+
+ action_map = G_ACTION_MAP (priv->action_group);
+ g_action_map_add_action_entries (action_map, entries, -1, applet);
+}
+
+/**
+ * gp_applet_setup_menu_from_resource:
+ * @applet: a #GpApplet
+ * @resource_path: a resource path
+ * @entries: a pointer to the first item in an %NULL-terminated array
+ * of #GActionEntry structs
+ *
+ * Sets up the context menu of @applet.
+ */
+void
+gp_applet_setup_menu_from_resource (GpApplet *applet,
+ const gchar *resource_path,
+ const GActionEntry *entries)
+{
+ GpAppletPrivate *priv;
+ GError *error;
+ GActionMap *action_map;
+
+ g_return_if_fail (GP_IS_APPLET (applet));
+ g_return_if_fail (resource_path != NULL);
+
+ priv = gp_applet_get_instance_private (applet);
+
+ error = NULL;
+ gtk_builder_add_from_resource (priv->builder, resource_path, &error);
+
+ if (error)
+ {
+ g_warning ("Error setting up menu: %s", error->message);
+ g_error_free (error);
+ }
+
+ action_map = G_ACTION_MAP (priv->action_group);
+ g_action_map_add_action_entries (action_map, entries, -1, applet);
+}
+
+/**
+ * gp_applet_menu_lookup_action:
+ * @applet: a #GpApplet
+ * @action_name: the name of an action
+ *
+ * Looks up the action with the name @action_name in action group.
+ *
+ * Returns: (transfer none): a #GAction, or %NULL.
+ */
+GAction *
+gp_applet_menu_lookup_action (GpApplet *applet,
+ const gchar *action_name)
+{
+ GpAppletPrivate *priv;
+ GActionMap *action_map;
+
+ g_return_val_if_fail (GP_IS_APPLET (applet), NULL);
+ priv = gp_applet_get_instance_private (applet);
+
+ action_map = G_ACTION_MAP (priv->action_group);
+
+ return g_action_map_lookup_action (action_map, action_name);
+}
+
+GtkWidget *
+gp_applet_get_menu (GpApplet *applet)
+{
+ GpAppletPrivate *priv;
+ gchar *name;
+ GObject *object;
+
+ g_return_val_if_fail (GP_IS_APPLET (applet), NULL);
+ priv = gp_applet_get_instance_private (applet);
+
+ name = g_strdup_printf ("%s-menu", priv->id);
+ object = gtk_builder_get_object (priv->builder, name);
+ g_free (name);
+
+ if (!object)
+ return NULL;
+
+ return gtk_menu_new_from_model (G_MENU_MODEL (object));
+}
+
+/**
+ * gp_applet_add_text_class:
+ * @applet: a #GpApplet
+ * @widget: a #GtkWidget
+ *
+ * Use this function to add css class to widgets that are visible on panel
+ * and shows text.
+ */
+void
+gp_applet_add_text_class (GpApplet *applet,
+ GtkWidget *widget)
+{
+ GtkStyleContext *context;
+
+ context = gtk_widget_get_style_context (widget);
+
+ gtk_style_context_add_class (context, "gp-text-color");
+}
diff --git a/libgnome-panel/gp-applet.h b/libgnome-panel/gp-applet.h
new file mode 100644
index 0000000..98ea9d7
--- /dev/null
+++ b/libgnome-panel/gp-applet.h
@@ -0,0 +1,126 @@
+/*
+ * Copyright (C) 2016 Alberts Muktupāvels
+ *
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 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 Lesser General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef GP_APPLET_H
+#define GP_APPLET_H
+
+#include <gtk/gtk.h>
+
+G_BEGIN_DECLS
+
+/**
+ * GP_TYPE_APPLET:
+ *
+ * The type for GpApplet.
+ */
+#define GP_TYPE_APPLET gp_applet_get_type ()
+G_DECLARE_DERIVABLE_TYPE (GpApplet, gp_applet, GP, APPLET, GtkEventBox)
+
+/**
+ * GpAppletFlags:
+ * @GP_APPLET_FLAGS_NONE: No flags set.
+ * @GP_APPLET_FLAGS_EXPAND_MAJOR: On horizontal panels, the #GpApplet will
+ * be allocated as much width as possible. On vertical panels, it will
+ * be allocated as much height as possible.
+ * @GP_APPLET_FLAGS_EXPAND_MINOR: On horizontal panels, the #GpApplet will
+ * be allocated the full height of the panel. On vertical panels, it
+ * will be allocated the full width. Most applets should set this flag
+ * in order to use full panel size and allow the applet to be Fitt's Law
+ * compliant.
+ * @GP_APPLET_FLAGS_HAS_HANDLE: The panel will draw a handle for the
+ * #GpApplet. This handle will be usable to move the applet, and to open
+ * the context menu of the applet.
+ *
+ * Flags to be used with gp_applet_get_flags() and gp_applet_set_flags(),
+ * to indicate to the panel a specific behavior requested by the #GpApplet.
+ */
+typedef enum
+{
+ GP_APPLET_FLAGS_NONE = 0,
+ GP_APPLET_FLAGS_EXPAND_MAJOR = 1 << 0,
+ GP_APPLET_FLAGS_EXPAND_MINOR = 1 << 1,
+ GP_APPLET_FLAGS_HAS_HANDLE = 1 << 2
+} GpAppletFlags;
+
+/**
+ * GpAppletClass:
+ * @parent_class: The parent class.
+ * @locked_down_changed: Signal is emmited when the locked down property
+ * of applet has changed.
+ * @placement_changed: Signal is emitted when the orientation or position
+ * properties of applet has changed.
+ *
+ * The class structure for the #GpApplet class.
+ */
+struct _GpAppletClass
+{
+ GtkEventBoxClass parent_class;
+
+ void (* locked_down_changed) (GpApplet *applet,
+ gboolean locked_down);
+
+ void (* placement_changed) (GpApplet *applet,
+ GtkOrientation orientation,
+ GtkPositionType position);
+
+ /*< private >*/
+ gpointer padding[10];
+};
+
+gboolean gp_applet_get_locked_down (GpApplet *applet);
+
+GtkOrientation gp_applet_get_orientation (GpApplet *applet);
+
+GtkPositionType gp_applet_get_position (GpApplet *applet);
+
+GpAppletFlags gp_applet_get_flags (GpApplet *applet);
+
+void gp_applet_set_flags (GpApplet *applet,
+ GpAppletFlags flags);
+
+void gp_applet_set_size_hints (GpApplet *applet,
+ const gint *size_hints,
+ guint n_elements,
+ gint base_size);
+
+GSettings *gp_applet_settings_new (GpApplet *applet,
+ const gchar *schema);
+
+void gp_applet_request_focus (GpApplet *applet,
+ guint32 timestamp);
+
+void gp_applet_setup_menu (GpApplet *applet,
+ const gchar *xml,
+ const GActionEntry *entries);
+
+void gp_applet_setup_menu_from_file (GpApplet *applet,
+ const gchar *filename,
+ const GActionEntry *entries);
+
+void gp_applet_setup_menu_from_resource (GpApplet *applet,
+ const gchar *resource_path,
+ const GActionEntry *entries);
+
+GAction *gp_applet_menu_lookup_action (GpApplet *applet,
+ const gchar *action_name);
+
+void gp_applet_add_text_class (GpApplet *applet,
+ GtkWidget *widget);
+
+G_END_DECLS
+
+#endif
diff --git a/libgnome-panel/gp-enum-types.c.in b/libgnome-panel/gp-enum-types.c.in
new file mode 100644
index 0000000..b55c6e4
--- /dev/null
+++ b/libgnome-panel/gp-enum-types.c.in
@@ -0,0 +1,37 @@
+/*** BEGIN file-header ***/
+#include "gp-enum-types.h"
+/*** END file-header ***/
+
+/*** BEGIN file-production ***/
+#include "@filename@"
+/*** END file-production ***/
+
+/*** BEGIN value-header ***/
+
+GType
+@enum_name@_get_type (void)
+{
+ static volatile gsize g_enum_type_id__volatile = 0;
+
+ if (g_once_init_enter (&g_enum_type_id__volatile))
+ {
+ static const G@Type@Value values[] = {
+/*** END value-header ***/
+
+/*** BEGIN value-production ***/
+ { @VALUENAME@, "@VALUENAME@", "@valuenick@" },
+/*** END value-production ***/
+
+/*** BEGIN value-tail ***/
+ { 0, NULL, NULL }
+ };
+ GType g_enum_type_id;
+
+ g_enum_type_id = g_@type@_register_static (g_intern_static_string ("@EnumName@"), values);
+
+ g_once_init_leave (&g_enum_type_id__volatile, g_enum_type_id);
+ }
+
+ return g_enum_type_id__volatile;
+}
+/*** END value-tail ***/
diff --git a/libgnome-panel/gp-enum-types.h.in b/libgnome-panel/gp-enum-types.h.in
new file mode 100644
index 0000000..5face91
--- /dev/null
+++ b/libgnome-panel/gp-enum-types.h.in
@@ -0,0 +1,21 @@
+/*** BEGIN file-header ***/
+#ifndef GP_ENUM_TYPES_H
+#define GP_ENUM_TYPES_H
+
+#include <glib-object.h>
+
+G_BEGIN_DECLS
+
+/*** END file-header ***/
+
+/*** BEGIN value-header ***/
+GType @enum_name@_get_type (void) G_GNUC_CONST;
+#define GP_TYPE_@ENUMSHORT@ (@enum_name@_get_type())
+
+/*** END value-header ***/
+
+/*** BEGIN file-tail ***/
+G_END_DECLS
+
+#endif
+/*** END file-tail ***/
diff --git a/libgnome-panel/gp-module-info-private.h b/libgnome-panel/gp-module-info-private.h
new file mode 100644
index 0000000..5ad3622
--- /dev/null
+++ b/libgnome-panel/gp-module-info-private.h
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2016 Alberts Muktupāvels
+ *
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 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 Lesser General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef GP_MODULE_INFO_PRIVATE_H
+#define GP_MODULE_INFO_PRIVATE_H
+
+#include "libgnome-panel/gp-module-info.h"
+
+G_BEGIN_DECLS
+
+struct _GpModuleInfo
+{
+ gchar *id;
+ gchar *version;
+
+ gchar *translation_domain;
+
+ gchar **applets;
+};
+
+void gp_module_info_free (GpModuleInfo *info);
+
+G_END_DECLS
+
+#endif
diff --git a/libgnome-panel/gp-module-info.c b/libgnome-panel/gp-module-info.c
new file mode 100644
index 0000000..e0664e1
--- /dev/null
+++ b/libgnome-panel/gp-module-info.c
@@ -0,0 +1,84 @@
+/*
+ * Copyright (C) 2016 Alberts Muktupāvels
+ *
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 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 Lesser General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include <stdarg.h>
+
+#include "gp-module-info-private.h"
+
+static gchar **
+get_applets (va_list args)
+{
+ GPtrArray *array;
+ const gchar *applet;
+
+ array = g_ptr_array_new ();
+ while ((applet = va_arg (args, const gchar *)) != NULL)
+ g_ptr_array_add (array, g_strdup (applet));
+
+ g_ptr_array_add (array, NULL);
+
+ return (gchar **) g_ptr_array_free (array, FALSE);
+}
+
+/**
+ * gp_module_info_new:
+ * @id: the id of this module
+ * @version: the version of this module
+ * @translation_domain: the translation domain or NULL
+ * @...: a %NULL-terminated list of applet ids in this module
+ *
+ * Creates a new #GpModuleInfo.
+ *
+ * Returns: (transfer full): a newly created #GpModuleInfo.
+ */
+GpModuleInfo *
+gp_module_info_new (const gchar *id,
+ const gchar *version,
+ const gchar *translation_domain,
+ ...)
+{
+ GpModuleInfo *info;
+ va_list args;
+
+ info = g_new0 (GpModuleInfo, 1);
+
+ info->id = g_strdup (id);
+ info->version = g_strdup (version);
+ info->translation_domain = g_strdup (translation_domain);
+
+ va_start (args, translation_domain);
+ info->applets = get_applets (args);
+ va_end (args);
+
+ return info;
+}
+
+void
+gp_module_info_free (GpModuleInfo *info)
+{
+ if (info == NULL)
+ return;
+
+ g_free (info->id);
+ g_free (info->version);
+ g_free (info->translation_domain);
+ g_strfreev (info->applets);
+
+ g_free (info);
+}
diff --git a/libgnome-panel/gp-module-info.h b/libgnome-panel/gp-module-info.h
new file mode 100644
index 0000000..a37408a
--- /dev/null
+++ b/libgnome-panel/gp-module-info.h
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2016 Alberts Muktupāvels
+ *
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 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 Lesser General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef GP_MODULE_INFO_H
+#define GP_MODULE_INFO_H
+
+#include <glib.h>
+
+G_BEGIN_DECLS
+
+/**
+ * GpModuleInfo:
+ *
+ * The #GpModuleInfo struct is an opaque data structure.
+ */
+typedef struct _GpModuleInfo GpModuleInfo;
+
+GpModuleInfo *gp_module_info_new (const gchar *id,
+ const gchar *version,
+ const gchar *translation_domain,
+ ...);
+
+G_END_DECLS
+
+#endif
diff --git a/libgnome-panel/gp-module.h b/libgnome-panel/gp-module.h
new file mode 100644
index 0000000..a1729a8
--- /dev/null
+++ b/libgnome-panel/gp-module.h
@@ -0,0 +1,126 @@
+/*
+ * Copyright (C) 2016 Alberts Muktupāvels
+ *
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 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 Lesser General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef GP_MODULE_H
+#define GP_MODULE_H
+
+#include <gtk/gtk.h>
+#include <libgnome-panel/gp-applet-info.h>
+#include <libgnome-panel/gp-module-info.h>
+
+G_BEGIN_DECLS
+
+/**
+ * GP_MODULE_ABI_VERSION:
+ *
+ * The version of the module system's ABI.
+ */
+#define GP_MODULE_ABI_VERSION 0x0001
+
+/**
+ * GpModuleGetInfo:
+ * @abi_version: (out): return location for module ABI version
+ *
+ * Each module must have a function gp_module_get_info() with this
+ * prototype. This function must always return %GP_MODULE_ABI_VERSION
+ * as @abi_version.
+ *
+ * Use gp_module_info_new() to create return value.
+ *
+ * Returns: (transfer full): a newly created #GpModuleInfo.
+ */
+typedef GpModuleInfo *(* GpModuleGetInfo) (guint32 *abi_version);
+
+/**
+ * GpModuleLoad:
+ * @module: a #GTypeModule
+ *
+ * Each module must have a function gp_module_load() with this prototype.
+ *
+ * This function is run after the module has been loaded. Typically, this
+ * function will register applet types and setup gettext.
+ */
+typedef void (* GpModuleLoad) (GTypeModule *module);
+
+/**
+ * GpModuleUnload:
+ * @module: a #GTypeModule
+ *
+ * Each module must have a function gp_module_unload() with this prototype.
+ *
+ * This function is run when the module is being unloaded.
+ */
+typedef void (* GpModuleUnload) (GTypeModule *module);
+
+/**
+ * GpModuleGetAppletInfo:
+ * @applet: the applet id
+ *
+ * Each module must have a function gp_module_get_applet_info() with this
+ * prototype.
+ *
+ * This function will be called to get #GpAppletInfo about all applets
+ * that was returned from gp_module_get_info().
+ *
+ * Use gp_applet_info_new() to create return value.
+ *
+ * Returns: (transfer full): a newly created #GpAppletInfo.
+ */
+typedef GpAppletInfo *(* GpModuleGetAppletInfo) (const gchar *applet);
+
+/**
+ * GpModuleGetAppletType:
+ * @applet: the applet id
+ *
+ * Each module must have a function gp_module_get_applet_type() with this
+ * prototype.
+ *
+ * This function will be called to get #GType for requested applet.
+ *
+ * Returns: a previously registered #GType.
+ */
+typedef GType (* GpModuleGetAppletType) (const gchar *applet);
+
+/**
+ * GpModuleSetupAbout:
+ * @dialog: a #GtkAboutDialog
+ * @applet: the applet id
+ *
+ * Each module might have a optional function gp_module_setup_about()
+ * with this prototype.
+ *
+ * Returns: %TRUE if dialog is ready, %FALSE otherwise.
+ */
+typedef gboolean (* GpModuleSetupAbout) (GtkAboutDialog *dialog,
+ const gchar *applet);
+
+GpModuleInfo *gp_module_get_info (guint32 *abi_version);
+
+void gp_module_load (GTypeModule *module);
+
+void gp_module_unload (GTypeModule *module);
+
+GpAppletInfo *gp_module_get_applet_info (const gchar *applet);
+
+GType gp_module_get_applet_type (const gchar *applet);
+
+gboolean gp_module_setup_about (GtkAboutDialog *dialog,
+ const gchar *applet);
+
+G_END_DECLS
+
+#endif
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