[glib] add GAction base class
- From: Ryan Lortie <ryanl src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [glib] add GAction base class
- Date: Wed, 18 Aug 2010 05:46:48 +0000 (UTC)
commit 8475d6d7d05f00e6fd43ffe882b47025330caa6f
Author: Ryan Lortie <desrt desrt ca>
Date: Wed Aug 18 01:45:15 2010 -0400
add GAction base class
docs/reference/gio/gio-docs.xml | 1 +
docs/reference/gio/gio-sections.txt | 31 ++
docs/reference/gio/gio.types | 1 +
gio/Makefile.am | 2 +
gio/gaction.c | 597 +++++++++++++++++++++++++++++++++++
gio/gaction.h | 120 +++++++
gio/gio.symbols | 17 +
gio/giotypes.h | 1 +
8 files changed, 770 insertions(+), 0 deletions(-)
---
diff --git a/docs/reference/gio/gio-docs.xml b/docs/reference/gio/gio-docs.xml
index 4a8320a..69381cd 100644
--- a/docs/reference/gio/gio-docs.xml
+++ b/docs/reference/gio/gio-docs.xml
@@ -163,6 +163,7 @@
<chapter id="application">
<title>Application support</title>
<xi:include href="xml/gactiongroup.xml"/>
+ <xi:include href="xml/gaction.xml"/>
<xi:include href="xml/gapplication.xml"/>
</chapter>
<chapter id="extending">
diff --git a/docs/reference/gio/gio-sections.txt b/docs/reference/gio/gio-sections.txt
index 7f123ce..122a514 100644
--- a/docs/reference/gio/gio-sections.txt
+++ b/docs/reference/gio/gio-sections.txt
@@ -2700,3 +2700,34 @@ G_ACTION_GROUP_CLASS
G_ACTION_GROUP_GET_CLASS
G_ACTION_GROUP
</SECTION>
+
+
+<SECTION>
+<FILE>gaction</FILE>
+<TITLE>GAction</TITLE>
+GAction
+GActionClass
+
+<SUBSECTION>
+g_action_get_name
+g_action_get_parameter_type
+g_action_get_state_type
+g_action_get_state_hint
+
+<SUBSECTION>
+g_action_get_enabled
+g_action_set_enabled
+g_action_get_state
+g_action_set_state
+
+<SUBSECTION>
+g_action_activate
+
+<SUBSECTION Standard>
+g_action_get_type
+G_TYPE_ACTION
+G_IS_ACTION
+G_ACTION_CLASS
+G_ACTION_GET_CLASS
+G_ACTION
+</SECTION>
diff --git a/docs/reference/gio/gio.types b/docs/reference/gio/gio.types
index 6c956cc..fa07b3e 100644
--- a/docs/reference/gio/gio.types
+++ b/docs/reference/gio/gio.types
@@ -1,3 +1,4 @@
+g_action_get_type
g_action_group_get_type
g_app_info_create_flags_get_type
g_app_info_get_type
diff --git a/gio/Makefile.am b/gio/Makefile.am
index db35c25..3240dbb 100644
--- a/gio/Makefile.am
+++ b/gio/Makefile.am
@@ -130,10 +130,12 @@ settings_sources = \
application_headers = \
gactiongroup.h \
+ gaction.h \
gapplication.h
application_sources = \
gactiongroup.c \
+ gaction.c \
gapplication.c
diff --git a/gio/gaction.c b/gio/gaction.c
new file mode 100644
index 0000000..6c865c3
--- /dev/null
+++ b/gio/gaction.c
@@ -0,0 +1,597 @@
+/*
+ * Copyright © 2010 Codethink Limited
+ *
+ * This program 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 of the licence 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, write to the
+ * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
+ * Boston, MA 02111-1307, USA.
+ *
+ * Authors: Ryan Lortie <desrt desrt ca>
+ */
+
+#include "gaction.h"
+
+G_DEFINE_TYPE (GAction, g_action, G_TYPE_OBJECT)
+
+/**
+ * SECTION:gaction
+ * @title: GAction
+ * @short_description: an action
+ *
+ * #GAction represents a single named action.
+ *
+ * The main interface to an action is that it can be activated with
+ * g_action_activate(). This results in the 'activate' signal being
+ * emitted. An activation has a #GVariant parameter (which may be
+ * %NULL). The correct type for the parameter is determined by a static
+ * parameter type (which is given at construction time).
+ *
+ * An action may optionally have a state, in which case the state may be
+ * set with g_action_set_state(). This call takes a #GVariant. The
+ * correct type for the state is determined by a static state type
+ * (which is given at construction time).
+ *
+ * The state may have a hint associated with it, specifying its valid
+ * range.
+ *
+ * #GAction is intended to be used both as a simple action class and as
+ * a base class for more complicated action types. The base class
+ * itself supports activation and state. Not supported are state hints
+ * and filtering requests to set the state based on the requested value.
+ * You should subclass if you require either of these abilities.
+ *
+ * In all cases, the base class is responsible for storing the name of
+ * the action, the parameter type, the enabled state, the optional state
+ * type and the state and emitting the appropriate signals when these
+ * change. The base class is also responsbile for filtering calls to
+ * g_action_activate() and g_action_set_state() for type safety and for
+ * the state being enabled.
+ *
+ * Probably the only useful thing to do with a #GAction is to put it
+ * inside of a #GSimpleActionGroup.
+ **/
+
+struct _GActionPrivate
+{
+ gchar *name;
+ GVariantType *parameter_type;
+ gboolean enabled;
+
+ GVariantType *state_type;
+ GVariant *state;
+};
+
+enum
+{
+ PROP_NONE,
+ PROP_NAME,
+ PROP_PARAMETER_TYPE,
+ PROP_ENABLED,
+ PROP_STATE_TYPE,
+ PROP_STATE
+};
+
+enum
+{
+ SIGNAL_ACTIVATE,
+ NR_SIGNALS
+};
+
+static guint g_action_signals[NR_SIGNALS];
+
+static void
+g_action_real_set_state (GAction *action,
+ GVariant *value)
+{
+ if (action->priv->state == value)
+ return;
+
+ if (!action->priv->state || !g_variant_equal (action->priv->state, value))
+ {
+ if (action->priv->state)
+ g_variant_unref (action->priv->state);
+
+ action->priv->state = g_variant_ref (value);
+
+ g_object_notify (G_OBJECT (action), "state");
+ }
+}
+
+static GVariant *
+g_action_real_get_state_hint (GAction *action)
+{
+ return NULL;
+}
+
+static void
+g_action_set_property (GObject *object, guint prop_id,
+ const GValue *value, GParamSpec *pspec)
+{
+ GAction *action = G_ACTION (object);
+
+ switch (prop_id)
+ {
+ case PROP_NAME:
+ g_assert (action->priv->name == NULL);
+ action->priv->name = g_value_dup_string (value);
+ break;
+
+ case PROP_PARAMETER_TYPE:
+ g_assert (action->priv->parameter_type == NULL);
+ action->priv->parameter_type = g_value_dup_boxed (value);
+ break;
+
+ case PROP_ENABLED:
+ g_action_set_enabled (action, g_value_get_boolean (value));
+ break;
+
+ case PROP_STATE_TYPE:
+ g_assert (action->priv->state_type == NULL);
+ action->priv->state_type = g_value_dup_boxed (value);
+ break;
+
+ case PROP_STATE:
+ g_action_set_state (action, g_value_get_variant (value));
+ break;
+
+ default:
+ g_assert_not_reached ();
+ }
+}
+
+static void
+g_action_get_property (GObject *object, guint prop_id,
+ GValue *value, GParamSpec *pspec)
+{
+ GAction *action = G_ACTION (object);
+
+ switch (prop_id)
+ {
+ case PROP_NAME:
+ g_value_set_string (value, g_action_get_name (action));
+ break;
+
+ case PROP_PARAMETER_TYPE:
+ g_value_set_boxed (value, g_action_get_parameter_type (action));
+ break;
+
+ case PROP_ENABLED:
+ g_value_set_boolean (value, g_action_get_enabled (action));
+ break;
+
+ case PROP_STATE_TYPE:
+ g_value_set_boxed (value, g_action_get_state_type (action));
+ break;
+
+ case PROP_STATE:
+ g_value_set_variant (value, g_action_get_state (action));
+ break;
+
+ default:
+ g_assert_not_reached ();
+ }
+}
+
+static void
+g_action_finalize (GObject *object)
+{
+ GAction *action = G_ACTION (object);
+
+ g_free (action->priv->name);
+ if (action->priv->parameter_type)
+ g_variant_type_free (action->priv->parameter_type);
+ if (action->priv->state_type)
+ g_variant_type_free (action->priv->state_type);
+ if (action->priv->state)
+ g_variant_unref (action->priv->state);
+
+ G_OBJECT_CLASS (g_action_parent_class)
+ ->finalize (object);
+}
+
+void
+g_action_init (GAction *action)
+{
+ action->priv = G_TYPE_INSTANCE_GET_PRIVATE (action,
+ G_TYPE_ACTION,
+ GActionPrivate);
+}
+
+void
+g_action_class_init (GActionClass *class)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (class);
+
+ class->get_state_hint = g_action_real_get_state_hint;
+ class->set_state = g_action_real_set_state;
+
+ object_class->get_property = g_action_get_property;
+ object_class->set_property = g_action_set_property;
+ object_class->finalize = g_action_finalize;
+
+ /**
+ * GAction::activate:
+ * @action: the #GAction
+ * @parameter: (allow-none): the parameter to the activation
+ *
+ * Indicates that the action was just activated.
+ *
+ * @parameter will always be of the expected type. In the event that
+ * an incorrect type was given, no signal will be emitted.
+ **/
+ g_action_signals[SIGNAL_ACTIVATE] =
+ g_signal_new ("activate", G_TYPE_ACTION, G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (GActionClass, activate),
+ NULL, NULL, g_cclosure_marshal_VOID__VARIANT,
+ G_TYPE_NONE, 1, G_TYPE_VARIANT);
+
+ /**
+ * GAction:name:
+ *
+ * The name of the action. This is mostly meaningful for identifying
+ * the action once it has been added to a #GActionGroup.
+ **/
+ g_object_class_install_property (object_class, PROP_NAME,
+ g_param_spec_string ("name", "action name",
+ "the name used to invoke the action",
+ NULL, G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY |
+ G_PARAM_STATIC_STRINGS));
+
+ /**
+ * GAction:parameter-type:
+ *
+ * The type of the parameter that must be given when activating the
+ * action.
+ **/
+ g_object_class_install_property (object_class, PROP_PARAMETER_TYPE,
+ g_param_spec_boxed ("parameter-type", "parameter type",
+ "the type of GVariant passed to activate()",
+ G_TYPE_VARIANT_TYPE, G_PARAM_READWRITE |
+ G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS));
+
+ /**
+ * GAction:enabled:
+ *
+ * If @action is currently enabled.
+ *
+ * If the action is disabled then calls to g_action_activate() and
+ * g_action_set_state() have no effect.
+ **/
+ g_object_class_install_property (object_class, PROP_ENABLED,
+ g_param_spec_boolean ("enabled", "enabled",
+ "if the action can be activated", TRUE,
+ G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+
+ /**
+ * GAction:state-type:
+ *
+ * The #GVariantType of the state that the action has, or %NULL if the
+ * action is stateless.
+ **/
+ g_object_class_install_property (object_class, PROP_STATE_TYPE,
+ g_param_spec_boxed ("state-type", "state type",
+ "the type of the state kept by the action",
+ G_TYPE_VARIANT_TYPE, G_PARAM_READWRITE |
+ G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS));
+
+ /**
+ * GAction:state:
+ *
+ * The state of the action, or %NULL if the action is stateless.
+ **/
+ g_object_class_install_property (object_class, PROP_STATE,
+ g_param_spec_variant ("state", "state", "the state the action is in",
+ G_VARIANT_TYPE_ANY, NULL,
+ G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+
+ g_type_class_add_private (class, sizeof (GActionPrivate));
+}
+
+/**
+ * g_action_set_state:
+ * @action: a #GAction
+ * @value: the new state
+ *
+ * Request for the state of @action to be changed to @value.
+ *
+ * The action must be stateful and @value must be of the correct type.
+ * See g_action_get_state_type().
+ *
+ * This call merely requests a change. The action may refuse to change
+ * its state or may change its state to something other than @value.
+ * See g_action_get_state_hint().
+ *
+ * Since: 2.26
+ **/
+void
+g_action_set_state (GAction *action,
+ GVariant *value)
+{
+ g_return_if_fail (G_IS_ACTION (action));
+ g_return_if_fail ((action->priv->state_type == NULL && value == NULL) ||
+ g_variant_is_of_type (value, action->priv->state_type));
+
+ g_variant_ref_sink (value);
+
+ if (action->priv->enabled)
+ G_ACTION_GET_CLASS (action)
+ ->set_state (action, value);
+
+ g_variant_unref (value);
+}
+
+/**
+ * g_action_get_state:
+ * @action: a #GAction
+ *
+ * Queries the current state of @action.
+ *
+ * If the action is not stateful then %NULL will be returned. If the
+ * action is stateful then the type of the return value is the type
+ * given by g_action_get_state_type().
+ *
+ * The return value (if non-%NULL) should be freed with
+ * g_variant_unref() when it is no longer required.
+ *
+ * Returns: (allow-none): the current state of the action
+ *
+ * Since: 2.26
+ **/
+GVariant *
+g_action_get_state (GAction *action)
+{
+ g_return_val_if_fail (G_IS_ACTION (action), NULL);
+
+ return action->priv->state;
+}
+
+/**
+ * g_action_get_name:
+ * @action: a #GAction
+ *
+ * Queries the name of @action.
+ *
+ * Returns: the name of the action
+ *
+ * Since: 2.26
+ **/
+const gchar *
+g_action_get_name (GAction *action)
+{
+ g_return_val_if_fail (G_IS_ACTION (action), NULL);
+
+ return action->priv->name;
+}
+
+/**
+ * g_action_get_parameter_type:
+ * @action: a #GAction
+ *
+ * Queries the type of the parameter that must be given when activating
+ * @action.
+ *
+ * When activating the action using g_action_activate(), the #GVariant
+ * given to that function must be of the type returned by this function.
+ *
+ * In the case that this function returns %NULL, you must not give any
+ * #GVariant, but %NULL instead.
+ *
+ * Returns: (allow-none): the parameter type
+ *
+ * Since: 2.26
+ **/
+const GVariantType *
+g_action_get_parameter_type (GAction *action)
+{
+ g_return_val_if_fail (G_IS_ACTION (action), NULL);
+
+ return action->priv->parameter_type;
+}
+
+/**
+ * g_action_get_state_type:
+ * @action: a #GAction
+ *
+ * Queries the type of the state of @action.
+ *
+ * If the action is stateful (ie: was created with
+ * g_action_new_stateful()) then this function returns the #GVariantType
+ * of the state. This is the type of the initial value given as the
+ * state. All calls to g_action_set_state() must give a #GVariant of
+ * this type and g_action_get_state() will return a #GVariant of the
+ * same type.
+ *
+ * If the action is not stateful (ie: created with g_action_new()) then
+ * this function will return %NULL. In that case, g_action_get_state()
+ * will return %NULL and you must not call g_action_set_state().
+ *
+ * Returns: (allow-none): the state type, if the action is stateful
+ *
+ * Since: 2.26
+ **/
+const GVariantType *
+g_action_get_state_type (GAction *action)
+{
+ g_return_val_if_fail (G_IS_ACTION (action), NULL);
+
+ return action->priv->state_type;
+}
+
+/**
+ * g_action_get_state_hint:
+ * @action: a #GAction
+ *
+ * Requests a hint about the valid range of values for the state of
+ * @action.
+ *
+ * If %NULL is returned it either means that the action is not stateful
+ * or that there is no hint about the valid range of values for the
+ * state of the action.
+ *
+ * If a #GVariant array is returned then each item in the array is a
+ * possible value for the state. If a #GVariant pair (ie: two-tuple) is
+ * returned then the tuple specifies the inclusive lower and upper bound
+ * of valid values for the state.
+ *
+ * In any case, the information is merely a hint. It may be possible to
+ * have a state value outside of the hinted range and setting a value
+ * within the range may fail.
+ *
+ * The return value (if non-%NULL) should be freed with
+ * g_variant_unref() when it is no longer required.
+ *
+ * Returns: (allow-none): the state range hint
+ *
+ * Since: 2.26
+ **/
+GVariant *
+g_action_get_state_hint (GAction *action)
+{
+ g_return_val_if_fail (G_IS_ACTION (action), NULL);
+
+ return G_ACTION_GET_CLASS (action)
+ ->get_state_hint (action);
+}
+
+/**
+ * g_action_get_enabled:
+ * @action: a #GAction
+ *
+ * Checks if @action is currently enabled.
+ *
+ * An action must be enabled in order to be activated or in order to
+ * have its state changed from outside callers.
+ *
+ * Returns: whether the action is enabled
+ *
+ * Since: 2.26
+ **/
+gboolean
+g_action_get_enabled (GAction *action)
+{
+ g_return_val_if_fail (G_IS_ACTION (action), FALSE);
+
+ return action->priv->enabled;
+}
+
+/**
+ * g_action_set_enabled:
+ * @action: a #GAction
+ * @enabled: whether the action is enabled
+ *
+ * Sets the action as enabled or not.
+ *
+ * An action must be enabled in order to be activated or in order to
+ * have its state changed from outside callers.
+ *
+ * Since: 2.26
+ **/
+void
+g_action_set_enabled (GAction *action,
+ gboolean enabled)
+{
+ g_return_if_fail (G_IS_ACTION (action));
+
+ enabled = !!enabled;
+
+ if (action->priv->enabled != enabled)
+ {
+ action->priv->enabled = enabled;
+ g_object_notify (G_OBJECT (action), "enabled");
+ }
+}
+
+/**
+ * g_action_activate:
+ * @action: a #GAction
+ * @parameter: the parameter to the activation
+ *
+ * Activates the action.
+ *
+ * @parameter must be the correct type of parameter for the action (ie:
+ * the parameter type given at construction time). If the parameter
+ * type was %NULL then @parameter must also be %NULL.
+ *
+ * Since: 2.26
+ **/
+void
+g_action_activate (GAction *action,
+ GVariant *parameter)
+{
+ g_return_if_fail (G_IS_ACTION (action));
+
+ g_return_if_fail (action->priv->parameter_type == NULL ?
+ parameter == NULL :
+ (parameter != NULL &&
+ g_variant_is_of_type (parameter,
+ action->priv->parameter_type)));
+
+ if (parameter)
+ g_variant_ref_sink (parameter);
+
+ if (action->priv->enabled)
+ g_signal_emit (action, g_action_signals[SIGNAL_ACTIVATE], 0, parameter);
+
+ if (parameter)
+ g_variant_unref (parameter);
+}
+
+/**
+ * g_action_new:
+ * @name: the name of the action
+ * @parameter_type: the type of parameter to the activate function
+ *
+ * Creates a new action.
+ *
+ * The created action is stateless. See g_action_new_stateful().
+ *
+ * Returns: a new #GAction
+ *
+ * Since: 2.26
+ **/
+GAction *
+g_action_new (const gchar *name,
+ const GVariantType *parameter_type)
+{
+ return g_object_new (G_TYPE_ACTION,
+ "name", name,
+ "parameter-type", parameter_type,
+ NULL);
+}
+
+/**
+ * g_action_new_stateful:
+ * @name: the name of the action
+ * @parameter_type: the type of the parameter to the activate function
+ * @state: the initial state of the action
+ *
+ * Creates a new stateful action.
+ *
+ * @state is the initial state of the action. All future state values
+ * must have the same #GVariantType as the initial state.
+ *
+ * Returns: a new #GAction
+ *
+ * Since: 2.26
+ **/
+GAction *
+g_action_new_stateful (const gchar *name,
+ const GVariantType *parameter_type,
+ GVariant *state)
+{
+ return g_object_new (G_TYPE_ACTION,
+ "name", name,
+ "parameter-type", parameter_type,
+ "state", state,
+ NULL);
+}
diff --git a/gio/gaction.h b/gio/gaction.h
new file mode 100644
index 0000000..68d4b65
--- /dev/null
+++ b/gio/gaction.h
@@ -0,0 +1,120 @@
+/*
+ * Copyright © 2010 Codethink Limited
+ *
+ * This program 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 of the licence 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, write to the
+ * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
+ * Boston, MA 02111-1307, USA.
+ *
+ * Authors: Ryan Lortie <desrt desrt ca>
+ */
+
+#if !defined (__GIO_GIO_H_INSIDE__) && !defined (GIO_COMPILATION)
+#error "Only <gio/gio.h> can be included directly."
+#endif
+
+#ifndef __G_ACTION_H__
+#define __G_ACTION_H__
+
+#include <gio/giotypes.h>
+
+G_BEGIN_DECLS
+
+#define G_TYPE_ACTION (g_action_get_type ())
+#define G_ACTION(inst) (G_TYPE_CHECK_INSTANCE_CAST ((inst), \
+ G_TYPE_ACTION, GAction))
+#define G_ACTION_CLASS(class) (G_TYPE_CHECK_CLASS_CAST ((class), \
+ G_TYPE_ACTION, GActionClass))
+#define G_IS_ACTION(inst) (G_TYPE_CHECK_INSTANCE_TYPE ((inst), G_TYPE_ACTION))
+#define G_IS_ACTION_CLASS(class) (G_TYPE_CHECK_CLASS_TYPE ((class), G_TYPE_ACTION))
+#define G_ACTION_GET_CLASS(inst) (G_TYPE_INSTANCE_GET_CLASS ((inst), \
+ G_TYPE_ACTION, GActionClass))
+
+typedef struct _GActionPrivate GActionPrivate;
+typedef struct _GActionClass GActionClass;
+
+/**
+ * GAction:
+ *
+ * The <structname>GAction</structname> structure contains private
+ * data and should only be accessed using the provided API
+ *
+ * Since: 2.26
+ */
+struct _GAction
+{
+ /*< private >*/
+ GObject parent_instance;
+
+ GActionPrivate *priv;
+};
+
+/**
+ * GActionClass:
+ * @get_state_hint: the virtual function pointer for g_action_get_state_hint()
+ * @set_state: the virtual function pointer for g_action_set_state(). The implementation should check the value
+ * for validity and then chain up to the handler in the base class in order to actually update the
+ * state.
+ * @activate: the class closure for the activate signal
+ *
+ * Since: 2.26
+ */
+struct _GActionClass
+{
+ GObjectClass parent_class;
+
+ /*< public >*/
+ /* virtual functions */
+ GVariant * (* get_state_hint) (GAction *action);
+ void (* set_state) (GAction *action,
+ GVariant *state);
+
+ /*< private >*/
+ gpointer vfunc_padding[6];
+
+ /*< public >*/
+ /* signals */
+ void (* activate) (GAction *action,
+ GVariant *parameter);
+
+ /*< private >*/
+ gpointer signal_padding[6];
+};
+
+GType g_action_get_type (void) G_GNUC_CONST;
+
+GAction * g_action_new (const gchar *name,
+ const GVariantType *parameter_type);
+
+GAction * g_action_new_stateful (const gchar *name,
+ const GVariantType *parameter_type,
+ GVariant *state);
+
+const gchar * g_action_get_name (GAction *action);
+const GVariantType * g_action_get_parameter_type (GAction *action);
+const GVariantType * g_action_get_state_type (GAction *action);
+GVariant * g_action_get_state_hint (GAction *action);
+
+gboolean g_action_get_enabled (GAction *action);
+void g_action_set_enabled (GAction *action,
+ gboolean enabled);
+
+GVariant * g_action_get_state (GAction *action);
+void g_action_set_state (GAction *action,
+ GVariant *value);
+
+void g_action_activate (GAction *action,
+ GVariant *parameter);
+G_END_DECLS
+
+#endif /* __G_ACTION_H__ */
diff --git a/gio/gio.symbols b/gio/gio.symbols
index ed4b8fc..4e13a55 100644
--- a/gio/gio.symbols
+++ b/gio/gio.symbols
@@ -1842,3 +1842,20 @@ g_action_group_set_state
#endif
#endif
+#if IN_HEADER(__G_ACTION_H__)
+#if IN_FILE(__G_ACTION_C__)
+g_action_activate
+g_action_get_enabled
+g_action_get_name
+g_action_get_parameter_type
+g_action_get_state
+g_action_get_state_hint
+g_action_get_state_type
+g_action_get_type
+g_action_new
+g_action_new_stateful
+g_action_set_enabled
+g_action_set_state
+#endif
+#endif
+
diff --git a/gio/giotypes.h b/gio/giotypes.h
index dd8e6c2..9b10854 100644
--- a/gio/giotypes.h
+++ b/gio/giotypes.h
@@ -48,6 +48,7 @@ typedef struct _GZlibCompressor GZlibCompressor;
typedef struct _GZlibDecompressor GZlibDecompressor;
typedef struct _GActionGroup GActionGroup;
+typedef struct _GAction GAction;
typedef struct _GSettingsBackend GSettingsBackend;
typedef struct _GSettings GSettings;
typedef struct _GPermission GPermission;
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