462 lines
14 KiB
C
462 lines
14 KiB
C
/* PIKA - Photo and Image Kooker Application
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* a rebranding of The GNU Image Manipulation Program (created with heckimp)
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* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
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*
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* Original copyright, applying to most contents (license remains unchanged):
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* PikaDBusService
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* Copyright (C) 2007, 2008 Sven Neumann <sven@gimp.org>
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* Copyright (C) 2013 Michael Natterer <mitch@gimp.org>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <gegl.h>
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#include <gtk/gtk.h>
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#include "gui-types.h"
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#include "core/pika.h"
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#include "core/pika-batch.h"
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#include "core/pikacontainer.h"
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#include "file/file-open.h"
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#include "display/pikadisplay.h"
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#include "display/pikadisplayshell.h"
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#include "pikadbusservice.h"
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typedef struct
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{
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GFile *file;
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gboolean as_new;
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gchar *interpreter;
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gchar *command;
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} IdleData;
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static void pika_dbus_service_ui_iface_init (PikaDBusServiceUIIface *iface);
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static void pika_dbus_service_dispose (GObject *object);
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static void pika_dbus_service_finalize (GObject *object);
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static gboolean pika_dbus_service_activate (PikaDBusServiceUI *service,
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GDBusMethodInvocation *invocation);
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static gboolean pika_dbus_service_open (PikaDBusServiceUI *service,
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GDBusMethodInvocation *invocation,
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const gchar *uri);
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static gboolean pika_dbus_service_open_as_new (PikaDBusServiceUI *service,
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GDBusMethodInvocation *invocation,
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const gchar *uri);
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static gboolean pika_dbus_service_batch_run (PikaDBusServiceUI *service,
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GDBusMethodInvocation *invocation,
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const gchar *batch_interpreter,
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const gchar *batch_command);
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static void pika_dbus_service_pika_opened (Pika *pika,
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GFile *file,
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PikaDBusService *service);
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static gboolean pika_dbus_service_queue_open (PikaDBusService *service,
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const gchar *uri,
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gboolean as_new);
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static gboolean pika_dbus_service_queue_batch (PikaDBusService *service,
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const gchar *interpreter,
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const gchar *command);
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static gboolean pika_dbus_service_process_idle (PikaDBusService *service);
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static IdleData * pika_dbus_service_open_data_new (PikaDBusService *service,
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const gchar *uri,
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gboolean as_new);
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static IdleData * pika_dbus_service_batch_data_new (PikaDBusService *service,
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const gchar *interpreter,
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const gchar *command);
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static void pika_dbus_service_idle_data_free (IdleData *data);
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G_DEFINE_TYPE_WITH_CODE (PikaDBusService, pika_dbus_service,
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PIKA_DBUS_SERVICE_TYPE_UI_SKELETON,
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G_IMPLEMENT_INTERFACE (PIKA_DBUS_SERVICE_TYPE_UI,
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pika_dbus_service_ui_iface_init))
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#define parent_class pika_dbus_service_parent_class
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static void
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pika_dbus_service_class_init (PikaDBusServiceClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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object_class->dispose = pika_dbus_service_dispose;
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object_class->finalize = pika_dbus_service_finalize;
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}
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static void
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pika_dbus_service_init (PikaDBusService *service)
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{
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service->queue = g_queue_new ();
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}
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static void
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pika_dbus_service_ui_iface_init (PikaDBusServiceUIIface *iface)
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{
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iface->handle_activate = pika_dbus_service_activate;
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iface->handle_open = pika_dbus_service_open;
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iface->handle_open_as_new = pika_dbus_service_open_as_new;
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iface->handle_batch_run = pika_dbus_service_batch_run;
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}
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GObject *
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pika_dbus_service_new (Pika *pika)
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{
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PikaDBusService *service;
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g_return_val_if_fail (PIKA_IS_PIKA (pika), NULL);
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service = g_object_new (PIKA_TYPE_DBUS_SERVICE, NULL);
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service->pika = pika;
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g_signal_connect_object (pika, "image-opened",
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G_CALLBACK (pika_dbus_service_pika_opened),
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service, 0);
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return G_OBJECT (service);
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}
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static void
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pika_dbus_service_dispose (GObject *object)
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{
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PikaDBusService *service = PIKA_DBUS_SERVICE (object);
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if (service->source)
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{
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g_source_remove (g_source_get_id (service->source));
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service->source = NULL;
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service->timeout_source = FALSE;
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}
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while (! g_queue_is_empty (service->queue))
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{
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pika_dbus_service_idle_data_free (g_queue_pop_head (service->queue));
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}
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G_OBJECT_CLASS (parent_class)->dispose (object);
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}
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static void
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pika_dbus_service_finalize (GObject *object)
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{
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PikaDBusService *service = PIKA_DBUS_SERVICE (object);
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if (service->queue)
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{
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g_queue_free (service->queue);
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service->queue = NULL;
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}
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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gboolean
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pika_dbus_service_activate (PikaDBusServiceUI *service,
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GDBusMethodInvocation *invocation)
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{
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Pika *pika = PIKA_DBUS_SERVICE (service)->pika;
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/* We want to be called again later in case that PIKA is not fully
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* started yet.
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*/
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if (pika_is_restored (pika))
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{
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PikaObject *display;
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display = pika_container_get_first_child (pika->displays);
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if (display)
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pika_display_shell_present (pika_display_get_shell (PIKA_DISPLAY (display)));
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}
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pika_dbus_service_ui_complete_activate (service, invocation);
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return TRUE;
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}
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gboolean
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pika_dbus_service_open (PikaDBusServiceUI *service,
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GDBusMethodInvocation *invocation,
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const gchar *uri)
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{
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gboolean success;
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success = pika_dbus_service_queue_open (PIKA_DBUS_SERVICE (service),
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uri, FALSE);
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pika_dbus_service_ui_complete_open (service, invocation, success);
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return TRUE;
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}
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gboolean
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pika_dbus_service_open_as_new (PikaDBusServiceUI *service,
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GDBusMethodInvocation *invocation,
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const gchar *uri)
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{
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gboolean success;
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success = pika_dbus_service_queue_open (PIKA_DBUS_SERVICE (service),
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uri, TRUE);
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pika_dbus_service_ui_complete_open_as_new (service, invocation, success);
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return TRUE;
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}
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gboolean
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pika_dbus_service_batch_run (PikaDBusServiceUI *service,
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GDBusMethodInvocation *invocation,
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const gchar *batch_interpreter,
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const gchar *batch_command)
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{
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gboolean success;
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success = pika_dbus_service_queue_batch (PIKA_DBUS_SERVICE (service),
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batch_interpreter,
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batch_command);
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pika_dbus_service_ui_complete_batch_run (service, invocation, success);
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return TRUE;
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}
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static void
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pika_dbus_service_pika_opened (Pika *pika,
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GFile *file,
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PikaDBusService *service)
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{
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gchar *uri = g_file_get_uri (file);
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g_signal_emit_by_name (service, "opened", uri);
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g_free (uri);
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}
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/*
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* Adds a request to open a file to the end of the queue and
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* starts an idle source if it is not already running.
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*/
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static gboolean
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pika_dbus_service_queue_open (PikaDBusService *service,
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const gchar *uri,
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gboolean as_new)
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{
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g_queue_push_tail (service->queue,
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pika_dbus_service_open_data_new (service, uri, as_new));
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if (! service->source)
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{
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service->source = g_idle_source_new ();
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service->timeout_source = FALSE;
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g_source_set_priority (service->source, G_PRIORITY_LOW);
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g_source_set_callback (service->source,
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(GSourceFunc) pika_dbus_service_process_idle,
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service,
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NULL);
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g_source_attach (service->source, NULL);
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g_source_unref (service->source);
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}
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/* The call always succeeds as it is handled in one way or another.
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* Even presenting an error message is considered success ;-)
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*/
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return TRUE;
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}
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/*
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* Adds a request to run a batch command to the end of the queue and
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* starts an idle source if it is not already running.
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*/
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static gboolean
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pika_dbus_service_queue_batch (PikaDBusService *service,
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const gchar *interpreter,
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const gchar *command)
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{
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g_queue_push_tail (service->queue,
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pika_dbus_service_batch_data_new (service,
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interpreter,
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command));
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if (! service->source)
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{
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service->source = g_idle_source_new ();
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service->timeout_source = FALSE;
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g_source_set_priority (service->source, G_PRIORITY_LOW);
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g_source_set_callback (service->source,
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(GSourceFunc) pika_dbus_service_process_idle,
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service,
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NULL);
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g_source_attach (service->source, NULL);
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g_source_unref (service->source);
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}
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/* The call always succeeds as it is handled in one way or another.
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* Even presenting an error message is considered success ;-)
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*/
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return TRUE;
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}
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/*
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* Idle callback that removes the first request from the queue and
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* handles it. If there are no more requests, the idle source is
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* removed.
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*/
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static gboolean
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pika_dbus_service_process_idle (PikaDBusService *service)
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{
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IdleData *data;
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if (! pika_is_restored (service->pika))
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{
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if (! service->timeout_source)
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{
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/* We are probably starting the program. No need to spam PIKA with
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* an idle handler (which might make PIKA slower to start even
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* with low priority).
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* Instead let's add a timeout of half a second.
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*/
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service->source = g_timeout_source_new (500);
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service->timeout_source = TRUE;
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g_source_set_priority (service->source, G_PRIORITY_LOW);
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g_source_set_callback (service->source,
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(GSourceFunc) pika_dbus_service_process_idle,
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service,
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NULL);
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g_source_attach (service->source, NULL);
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g_source_unref (service->source);
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return G_SOURCE_REMOVE;
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}
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else
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{
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return G_SOURCE_CONTINUE;
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}
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}
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/* Process data as a FIFO. */
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data = g_queue_pop_head (service->queue);
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if (data)
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{
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if (data->file)
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file_open_from_command_line (service->pika, data->file, data->as_new,
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NULL /* FIXME monitor */);
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if (data->command)
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{
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const gchar *commands[2] = {data->command, 0};
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pika_batch_run (service->pika, data->interpreter,
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commands);
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}
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pika_dbus_service_idle_data_free (data);
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if (service->timeout_source)
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{
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/* Now PIKA is fully functional and can respond quickly to
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* DBus calls. Switch to a usual idle source.
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*/
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service->source = g_idle_source_new ();
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service->timeout_source = FALSE;
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g_source_set_priority (service->source, G_PRIORITY_LOW);
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g_source_set_callback (service->source,
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(GSourceFunc) pika_dbus_service_process_idle,
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service,
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NULL);
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g_source_attach (service->source, NULL);
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g_source_unref (service->source);
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return G_SOURCE_REMOVE;
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}
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else
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{
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return G_SOURCE_CONTINUE;
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}
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}
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service->source = NULL;
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return G_SOURCE_REMOVE;
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}
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static IdleData *
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pika_dbus_service_open_data_new (PikaDBusService *service,
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const gchar *uri,
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gboolean as_new)
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{
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IdleData *data = g_slice_new (IdleData);
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data->file = g_file_new_for_uri (uri);
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data->as_new = as_new;
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data->interpreter = NULL;
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data->command = NULL;
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return data;
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}
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static IdleData *
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pika_dbus_service_batch_data_new (PikaDBusService *service,
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const gchar *interpreter,
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const gchar *command)
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{
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IdleData *data = g_slice_new (IdleData);
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data->file = NULL;
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data->as_new = FALSE;
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data->command = g_strdup (command);
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if (g_strcmp0 (interpreter, "") == 0)
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data->interpreter = NULL;
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else
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data->interpreter = g_strdup (interpreter);
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return data;
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}
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static void
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pika_dbus_service_idle_data_free (IdleData *data)
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{
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if (data->file)
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g_object_unref (data->file);
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if (data->command)
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g_free (data->command);
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if (data->interpreter)
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g_free (data->interpreter);
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g_slice_free (IdleData, data);
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}
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