425 lines
14 KiB
C
425 lines
14 KiB
C
|
/* PIKA - Photo and Image Kooker Application
|
||
|
|
* a rebranding of The GNU Image Manipulation Program (created with heckimp)
|
||
|
|
* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
|
||
|
|
*
|
||
|
|
* Original copyright, applying to most contents (license remains unchanged):
|
||
|
|
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
|
||
|
|
*
|
||
|
|
* pikaaction.c
|
||
|
|
* Copyright (C) 2004-2019 Michael Natterer <mitch@gimp.org>
|
||
|
|
*
|
||
|
|
* This program is free software: you can redistribute it and/or modify
|
||
|
|
* it under the terms of the GNU General Public License as published by
|
||
|
|
* the Free Software Foundation; either version 3 of the License, or
|
||
|
|
* (at your option) any later version.
|
||
|
|
*
|
||
|
|
* This program 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 General Public License for more details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU General Public License
|
||
|
|
* along with this program. If not, see <https://www.gnu.org/licenses/>.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "config.h"
|
||
|
|
|
||
|
|
#include <gegl.h>
|
||
|
|
#include <gtk/gtk.h>
|
||
|
|
|
||
|
|
#include "libpikabase/pikabase.h"
|
||
|
|
|
||
|
|
#include "widgets-types.h"
|
||
|
|
|
||
|
|
#include "pikaaction.h"
|
||
|
|
#include "pikaactionimpl.h"
|
||
|
|
#include "pikaaction-history.h"
|
||
|
|
|
||
|
|
|
||
|
|
enum
|
||
|
|
{
|
||
|
|
PROP_0,
|
||
|
|
PROP_ENABLED = PIKA_ACTION_PROP_LAST + 1,
|
||
|
|
PROP_PARAMETER_TYPE,
|
||
|
|
PROP_STATE_TYPE,
|
||
|
|
PROP_STATE
|
||
|
|
};
|
||
|
|
|
||
|
|
enum
|
||
|
|
{
|
||
|
|
CHANGE_STATE,
|
||
|
|
LAST_SIGNAL
|
||
|
|
};
|
||
|
|
|
||
|
|
struct _PikaActionImplPrivate
|
||
|
|
{
|
||
|
|
GVariantType *parameter_type;
|
||
|
|
GVariant *state;
|
||
|
|
GVariant *state_hint;
|
||
|
|
gboolean state_set_already;
|
||
|
|
};
|
||
|
|
|
||
|
|
static void pika_action_g_action_iface_init (GActionInterface *iface);
|
||
|
|
|
||
|
|
static void pika_action_impl_finalize (GObject *object);
|
||
|
|
static void pika_action_impl_set_property (GObject *object,
|
||
|
|
guint prop_id,
|
||
|
|
const GValue *value,
|
||
|
|
GParamSpec *pspec);
|
||
|
|
static void pika_action_impl_get_property (GObject *object,
|
||
|
|
guint prop_id,
|
||
|
|
GValue *value,
|
||
|
|
GParamSpec *pspec);
|
||
|
|
|
||
|
|
/* XXX Implementations for our PikaAction are widely inspired by GSimpleAction
|
||
|
|
* implementations.
|
||
|
|
*/
|
||
|
|
static void pika_action_impl_activate (GAction *action,
|
||
|
|
GVariant *parameter);
|
||
|
|
static void pika_action_impl_change_state (GAction *action,
|
||
|
|
GVariant *value);
|
||
|
|
static gboolean pika_action_impl_get_enabled (GAction *action);
|
||
|
|
static const GVariantType *
|
||
|
|
pika_action_impl_get_parameter_type (GAction *action);
|
||
|
|
static const GVariantType *
|
||
|
|
pika_action_impl_get_state_type (GAction *action);
|
||
|
|
static GVariant *
|
||
|
|
pika_action_impl_get_state (GAction *action);
|
||
|
|
static GVariant *
|
||
|
|
pika_action_impl_get_state_hint (GAction *action);
|
||
|
|
|
||
|
|
static void pika_action_impl_set_state (PikaAction *pika_action,
|
||
|
|
GVariant *value);
|
||
|
|
|
||
|
|
|
||
|
|
G_DEFINE_TYPE_WITH_CODE (PikaActionImpl, pika_action_impl, PIKA_TYPE_OBJECT,
|
||
|
|
G_ADD_PRIVATE (PikaActionImpl)
|
||
|
|
G_IMPLEMENT_INTERFACE (G_TYPE_ACTION, pika_action_g_action_iface_init)
|
||
|
|
G_IMPLEMENT_INTERFACE (PIKA_TYPE_ACTION, NULL))
|
||
|
|
|
||
|
|
#define parent_class pika_action_impl_parent_class
|
||
|
|
|
||
|
|
static guint pika_action_impl_signals[LAST_SIGNAL] = { 0 };
|
||
|
|
|
||
|
|
static void
|
||
|
|
pika_action_impl_class_init (PikaActionImplClass *klass)
|
||
|
|
{
|
||
|
|
GObjectClass *object_class = G_OBJECT_CLASS (klass);
|
||
|
|
|
||
|
|
pika_action_impl_signals[CHANGE_STATE] =
|
||
|
|
g_signal_new ("change-state",
|
||
|
|
G_TYPE_FROM_CLASS (klass),
|
||
|
|
G_SIGNAL_RUN_LAST | G_SIGNAL_MUST_COLLECT,
|
||
|
|
G_STRUCT_OFFSET (PikaActionImplClass, change_state),
|
||
|
|
NULL, NULL, NULL,
|
||
|
|
G_TYPE_NONE, 1,
|
||
|
|
G_TYPE_VARIANT);
|
||
|
|
|
||
|
|
object_class->finalize = pika_action_impl_finalize;
|
||
|
|
object_class->set_property = pika_action_impl_set_property;
|
||
|
|
object_class->get_property = pika_action_impl_get_property;
|
||
|
|
|
||
|
|
pika_action_install_properties (object_class);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* PikaAction:enabled:
|
||
|
|
*
|
||
|
|
* If @action is currently enabled.
|
||
|
|
*
|
||
|
|
* If the action is disabled then calls to g_action_activate() and
|
||
|
|
* g_action_change_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,
|
||
|
|
PIKA_PARAM_READWRITE));
|
||
|
|
/**
|
||
|
|
* PikaAction: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,
|
||
|
|
PIKA_PARAM_READWRITE |
|
||
|
|
G_PARAM_CONSTRUCT_ONLY));
|
||
|
|
/**
|
||
|
|
* PikaAction: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,
|
||
|
|
PIKA_PARAM_READABLE));
|
||
|
|
|
||
|
|
/**
|
||
|
|
* PikaAction: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,
|
||
|
|
PIKA_PARAM_READWRITE | G_PARAM_CONSTRUCT));
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
pika_action_g_action_iface_init (GActionInterface *iface)
|
||
|
|
{
|
||
|
|
iface->activate = pika_action_impl_activate;
|
||
|
|
iface->change_state = pika_action_impl_change_state;
|
||
|
|
iface->get_enabled = pika_action_impl_get_enabled;
|
||
|
|
iface->get_name = (const gchar* (*) (GAction*)) pika_action_get_name;
|
||
|
|
iface->get_parameter_type = pika_action_impl_get_parameter_type;
|
||
|
|
iface->get_state_type = pika_action_impl_get_state_type;
|
||
|
|
iface->get_state = pika_action_impl_get_state;
|
||
|
|
iface->get_state_hint = pika_action_impl_get_state_hint;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
pika_action_impl_init (PikaActionImpl *impl)
|
||
|
|
{
|
||
|
|
impl->priv = pika_action_impl_get_instance_private (impl);
|
||
|
|
impl->priv->state_set_already = FALSE;
|
||
|
|
|
||
|
|
pika_action_init (PIKA_ACTION (impl));
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
pika_action_impl_finalize (GObject *object)
|
||
|
|
{
|
||
|
|
PikaActionImpl *impl = PIKA_ACTION_IMPL (object);
|
||
|
|
|
||
|
|
if (impl->priv->parameter_type)
|
||
|
|
g_variant_type_free (impl->priv->parameter_type);
|
||
|
|
if (impl->priv->state)
|
||
|
|
g_variant_unref (impl->priv->state);
|
||
|
|
if (impl->priv->state_hint)
|
||
|
|
g_variant_unref (impl->priv->state_hint);
|
||
|
|
|
||
|
|
G_OBJECT_CLASS (parent_class)->finalize (object);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
pika_action_impl_get_property (GObject *object,
|
||
|
|
guint prop_id,
|
||
|
|
GValue *value,
|
||
|
|
GParamSpec *pspec)
|
||
|
|
{
|
||
|
|
PikaActionImpl *impl = PIKA_ACTION_IMPL (object);
|
||
|
|
|
||
|
|
switch (prop_id)
|
||
|
|
{
|
||
|
|
case PROP_ENABLED:
|
||
|
|
g_value_set_boolean (value, pika_action_impl_get_enabled (G_ACTION (impl)));
|
||
|
|
break;
|
||
|
|
case PROP_PARAMETER_TYPE:
|
||
|
|
g_value_set_boxed (value, pika_action_impl_get_parameter_type (G_ACTION (impl)));
|
||
|
|
break;
|
||
|
|
case PROP_STATE_TYPE:
|
||
|
|
g_value_set_boxed (value, pika_action_impl_get_state_type (G_ACTION (impl)));
|
||
|
|
break;
|
||
|
|
case PROP_STATE:
|
||
|
|
g_value_take_variant (value, pika_action_impl_get_state (G_ACTION (impl)));
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
pika_action_get_property (object, prop_id, value, pspec);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
pika_action_impl_set_property (GObject *object,
|
||
|
|
guint prop_id,
|
||
|
|
const GValue *value,
|
||
|
|
GParamSpec *pspec)
|
||
|
|
{
|
||
|
|
PikaActionImpl *impl = PIKA_ACTION_IMPL (object);
|
||
|
|
|
||
|
|
switch (prop_id)
|
||
|
|
{
|
||
|
|
case PROP_ENABLED:
|
||
|
|
pika_action_set_sensitive (PIKA_ACTION (impl),
|
||
|
|
g_value_get_boolean (value), NULL);
|
||
|
|
break;
|
||
|
|
case PROP_PARAMETER_TYPE:
|
||
|
|
impl->priv->parameter_type = g_value_dup_boxed (value);
|
||
|
|
break;
|
||
|
|
case PROP_STATE:
|
||
|
|
/* The first time we see this (during construct) we should just
|
||
|
|
* take the state as it was handed to us.
|
||
|
|
*
|
||
|
|
* After that, we should make sure we go through the same checks
|
||
|
|
* as the C API.
|
||
|
|
*/
|
||
|
|
if (!impl->priv->state_set_already)
|
||
|
|
{
|
||
|
|
impl->priv->state = g_value_dup_variant (value);
|
||
|
|
impl->priv->state_set_already = TRUE;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
pika_action_impl_set_state (PIKA_ACTION (impl), g_value_get_variant (value));
|
||
|
|
}
|
||
|
|
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
pika_action_set_property (object, prop_id, value, pspec);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
pika_action_impl_activate (GAction *action,
|
||
|
|
GVariant *parameter)
|
||
|
|
{
|
||
|
|
g_object_add_weak_pointer (G_OBJECT (action), (gpointer) &action);
|
||
|
|
|
||
|
|
pika_action_emit_activate (PIKA_ACTION (action), parameter);
|
||
|
|
|
||
|
|
if (action != NULL)
|
||
|
|
{
|
||
|
|
/* Some actions are self-destructive, such as the "windows-recent-*"
|
||
|
|
* actions which don't exist after being run. Don't log these.
|
||
|
|
*/
|
||
|
|
g_object_remove_weak_pointer (G_OBJECT (action), (gpointer) &action);
|
||
|
|
|
||
|
|
pika_action_history_action_activated (PIKA_ACTION (action));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
pika_action_impl_change_state (GAction *action,
|
||
|
|
GVariant *value)
|
||
|
|
{
|
||
|
|
/* If the user connected a signal handler then they are responsible
|
||
|
|
* for handling state changes.
|
||
|
|
*/
|
||
|
|
if (g_signal_has_handler_pending (action, pika_action_impl_signals[CHANGE_STATE], 0, TRUE))
|
||
|
|
g_signal_emit (action, pika_action_impl_signals[CHANGE_STATE], 0, value);
|
||
|
|
else
|
||
|
|
/* If not, then the default behavior is to just set the state. */
|
||
|
|
pika_action_impl_set_state (PIKA_ACTION (action), value);
|
||
|
|
}
|
||
|
|
|
||
|
|
static gboolean
|
||
|
|
pika_action_impl_get_enabled (GAction *action)
|
||
|
|
{
|
||
|
|
return pika_action_is_sensitive (PIKA_ACTION (action), NULL);
|
||
|
|
}
|
||
|
|
|
||
|
|
static const GVariantType *
|
||
|
|
pika_action_impl_get_parameter_type (GAction *action)
|
||
|
|
{
|
||
|
|
PikaActionImpl *impl = PIKA_ACTION_IMPL (action);
|
||
|
|
|
||
|
|
return impl->priv->parameter_type;
|
||
|
|
}
|
||
|
|
|
||
|
|
static const GVariantType *
|
||
|
|
pika_action_impl_get_state_type (GAction *action)
|
||
|
|
{
|
||
|
|
PikaActionImpl *impl = PIKA_ACTION_IMPL (action);
|
||
|
|
|
||
|
|
if (impl->priv->state != NULL)
|
||
|
|
return g_variant_get_type (impl->priv->state);
|
||
|
|
else
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
static GVariant *
|
||
|
|
pika_action_impl_get_state (GAction *action)
|
||
|
|
{
|
||
|
|
PikaActionImpl *impl = PIKA_ACTION_IMPL (action);
|
||
|
|
|
||
|
|
return impl->priv->state ? g_variant_ref (impl->priv->state) : NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
static GVariant *
|
||
|
|
pika_action_impl_get_state_hint (GAction *action)
|
||
|
|
{
|
||
|
|
PikaActionImpl *impl = PIKA_ACTION_IMPL (action);
|
||
|
|
|
||
|
|
if (impl->priv->state_hint != NULL)
|
||
|
|
return g_variant_ref (impl->priv->state_hint);
|
||
|
|
else
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/* public functions */
|
||
|
|
|
||
|
|
PikaAction *
|
||
|
|
pika_action_impl_new (const gchar *name,
|
||
|
|
const gchar *label,
|
||
|
|
const gchar *short_label,
|
||
|
|
const gchar *tooltip,
|
||
|
|
const gchar *icon_name,
|
||
|
|
const gchar *help_id,
|
||
|
|
PikaContext *context)
|
||
|
|
{
|
||
|
|
PikaAction *action;
|
||
|
|
|
||
|
|
action = g_object_new (PIKA_TYPE_ACTION_IMPL,
|
||
|
|
"name", name,
|
||
|
|
"label", label,
|
||
|
|
"short-label", short_label,
|
||
|
|
"tooltip", tooltip,
|
||
|
|
"icon-name", icon_name,
|
||
|
|
"context", context,
|
||
|
|
NULL);
|
||
|
|
|
||
|
|
pika_action_set_help_id (action, help_id);
|
||
|
|
|
||
|
|
return action;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/* private functions */
|
||
|
|
|
||
|
|
static void
|
||
|
|
pika_action_impl_set_state (PikaAction *pika_action,
|
||
|
|
GVariant *value)
|
||
|
|
{
|
||
|
|
PikaActionImpl *impl;
|
||
|
|
const GVariantType *state_type;
|
||
|
|
|
||
|
|
g_return_if_fail (PIKA_IS_ACTION (pika_action));
|
||
|
|
g_return_if_fail (value != NULL);
|
||
|
|
|
||
|
|
impl = PIKA_ACTION_IMPL (pika_action);
|
||
|
|
|
||
|
|
state_type = impl->priv->state ? g_variant_get_type (impl->priv->state) : NULL;
|
||
|
|
|
||
|
|
g_return_if_fail (state_type != NULL);
|
||
|
|
g_return_if_fail (g_variant_is_of_type (value, state_type));
|
||
|
|
|
||
|
|
g_variant_ref_sink (value);
|
||
|
|
|
||
|
|
if (! impl->priv->state || ! g_variant_equal (impl->priv->state, value))
|
||
|
|
{
|
||
|
|
if (impl->priv->state)
|
||
|
|
g_variant_unref (impl->priv->state);
|
||
|
|
|
||
|
|
impl->priv->state = g_variant_ref (value);
|
||
|
|
|
||
|
|
g_object_notify (G_OBJECT (impl), "state");
|
||
|
|
}
|
||
|
|
|
||
|
|
g_variant_unref (value);
|
||
|
|
}
|
