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-rw-r--r--app/gui/gimpdbusservice.c457
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diff --git a/app/gui/gimpdbusservice.c b/app/gui/gimpdbusservice.c
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+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * GimpDBusService
+ * Copyright (C) 2007, 2008 Sven Neumann <sven@gimp.org>
+ * Copyright (C) 2013 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 "gui-types.h"
+
+#include "core/gimp.h"
+#include "core/gimp-batch.h"
+#include "core/gimpcontainer.h"
+
+#include "file/file-open.h"
+
+#include "display/gimpdisplay.h"
+#include "display/gimpdisplayshell.h"
+
+#include "gimpdbusservice.h"
+
+
+typedef struct
+{
+ GFile *file;
+ gboolean as_new;
+
+ gchar *interpreter;
+ gchar *command;
+} IdleData;
+
+static void gimp_dbus_service_ui_iface_init (GimpDBusServiceUIIface *iface);
+
+static void gimp_dbus_service_dispose (GObject *object);
+static void gimp_dbus_service_finalize (GObject *object);
+
+static gboolean gimp_dbus_service_activate (GimpDBusServiceUI *service,
+ GDBusMethodInvocation *invocation);
+static gboolean gimp_dbus_service_open (GimpDBusServiceUI *service,
+ GDBusMethodInvocation *invocation,
+ const gchar *uri);
+
+static gboolean gimp_dbus_service_open_as_new (GimpDBusServiceUI *service,
+ GDBusMethodInvocation *invocation,
+ const gchar *uri);
+
+static gboolean gimp_dbus_service_batch_run (GimpDBusServiceUI *service,
+ GDBusMethodInvocation *invocation,
+ const gchar *batch_interpreter,
+ const gchar *batch_command);
+
+static void gimp_dbus_service_gimp_opened (Gimp *gimp,
+ GFile *file,
+ GimpDBusService *service);
+
+static gboolean gimp_dbus_service_queue_open (GimpDBusService *service,
+ const gchar *uri,
+ gboolean as_new);
+static gboolean gimp_dbus_service_queue_batch (GimpDBusService *service,
+ const gchar *interpreter,
+ const gchar *command);
+
+static gboolean gimp_dbus_service_process_idle (GimpDBusService *service);
+static IdleData * gimp_dbus_service_open_data_new (GimpDBusService *service,
+ const gchar *uri,
+ gboolean as_new);
+static IdleData * gimp_dbus_service_batch_data_new (GimpDBusService *service,
+ const gchar *interpreter,
+ const gchar *command);
+static void gimp_dbus_service_idle_data_free (IdleData *data);
+
+
+G_DEFINE_TYPE_WITH_CODE (GimpDBusService, gimp_dbus_service,
+ GIMP_DBUS_SERVICE_TYPE_UI_SKELETON,
+ G_IMPLEMENT_INTERFACE (GIMP_DBUS_SERVICE_TYPE_UI,
+ gimp_dbus_service_ui_iface_init))
+
+#define parent_class gimp_dbus_service_parent_class
+
+
+static void
+gimp_dbus_service_class_init (GimpDBusServiceClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+ object_class->dispose = gimp_dbus_service_dispose;
+ object_class->finalize = gimp_dbus_service_finalize;
+}
+
+static void
+gimp_dbus_service_init (GimpDBusService *service)
+{
+ service->queue = g_queue_new ();
+}
+
+static void
+gimp_dbus_service_ui_iface_init (GimpDBusServiceUIIface *iface)
+{
+ iface->handle_activate = gimp_dbus_service_activate;
+ iface->handle_open = gimp_dbus_service_open;
+ iface->handle_open_as_new = gimp_dbus_service_open_as_new;
+ iface->handle_batch_run = gimp_dbus_service_batch_run;
+}
+
+GObject *
+gimp_dbus_service_new (Gimp *gimp)
+{
+ GimpDBusService *service;
+
+ g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);
+
+ service = g_object_new (GIMP_TYPE_DBUS_SERVICE, NULL);
+
+ service->gimp = gimp;
+
+ g_signal_connect_object (gimp, "image-opened",
+ G_CALLBACK (gimp_dbus_service_gimp_opened),
+ service, 0);
+
+ return G_OBJECT (service);
+}
+
+static void
+gimp_dbus_service_dispose (GObject *object)
+{
+ GimpDBusService *service = GIMP_DBUS_SERVICE (object);
+
+ if (service->source)
+ {
+ g_source_remove (g_source_get_id (service->source));
+ service->source = NULL;
+ service->timeout_source = FALSE;
+ }
+
+ while (! g_queue_is_empty (service->queue))
+ {
+ gimp_dbus_service_idle_data_free (g_queue_pop_head (service->queue));
+ }
+
+ G_OBJECT_CLASS (parent_class)->dispose (object);
+}
+
+static void
+gimp_dbus_service_finalize (GObject *object)
+{
+ GimpDBusService *service = GIMP_DBUS_SERVICE (object);
+
+ if (service->queue)
+ {
+ g_queue_free (service->queue);
+ service->queue = NULL;
+ }
+
+ G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+gboolean
+gimp_dbus_service_activate (GimpDBusServiceUI *service,
+ GDBusMethodInvocation *invocation)
+{
+ Gimp *gimp = GIMP_DBUS_SERVICE (service)->gimp;
+
+ /* We want to be called again later in case that GIMP is not fully
+ * started yet.
+ */
+ if (gimp_is_restored (gimp))
+ {
+ GimpObject *display;
+
+ display = gimp_container_get_first_child (gimp->displays);
+
+ if (display)
+ gimp_display_shell_present (gimp_display_get_shell (GIMP_DISPLAY (display)));
+ }
+
+ gimp_dbus_service_ui_complete_activate (service, invocation);
+
+ return TRUE;
+}
+
+gboolean
+gimp_dbus_service_open (GimpDBusServiceUI *service,
+ GDBusMethodInvocation *invocation,
+ const gchar *uri)
+{
+ gboolean success;
+
+ success = gimp_dbus_service_queue_open (GIMP_DBUS_SERVICE (service),
+ uri, FALSE);
+
+ gimp_dbus_service_ui_complete_open (service, invocation, success);
+
+ return TRUE;
+}
+
+gboolean
+gimp_dbus_service_open_as_new (GimpDBusServiceUI *service,
+ GDBusMethodInvocation *invocation,
+ const gchar *uri)
+{
+ gboolean success;
+
+ success = gimp_dbus_service_queue_open (GIMP_DBUS_SERVICE (service),
+ uri, TRUE);
+
+ gimp_dbus_service_ui_complete_open_as_new (service, invocation, success);
+
+ return TRUE;
+}
+
+gboolean
+gimp_dbus_service_batch_run (GimpDBusServiceUI *service,
+ GDBusMethodInvocation *invocation,
+ const gchar *batch_interpreter,
+ const gchar *batch_command)
+{
+ gboolean success;
+
+ success = gimp_dbus_service_queue_batch (GIMP_DBUS_SERVICE (service),
+ batch_interpreter,
+ batch_command);
+
+ gimp_dbus_service_ui_complete_batch_run (service, invocation, success);
+
+ return TRUE;
+}
+
+static void
+gimp_dbus_service_gimp_opened (Gimp *gimp,
+ GFile *file,
+ GimpDBusService *service)
+{
+ gchar *uri = g_file_get_uri (file);
+
+ g_signal_emit_by_name (service, "opened", uri);
+
+ g_free (uri);
+}
+
+/*
+ * Adds a request to open a file to the end of the queue and
+ * starts an idle source if it is not already running.
+ */
+static gboolean
+gimp_dbus_service_queue_open (GimpDBusService *service,
+ const gchar *uri,
+ gboolean as_new)
+{
+ g_queue_push_tail (service->queue,
+ gimp_dbus_service_open_data_new (service, uri, as_new));
+
+ if (! service->source)
+ {
+ service->source = g_idle_source_new ();
+ service->timeout_source = FALSE;
+
+ g_source_set_priority (service->source, G_PRIORITY_LOW);
+ g_source_set_callback (service->source,
+ (GSourceFunc) gimp_dbus_service_process_idle,
+ service,
+ NULL);
+ g_source_attach (service->source, NULL);
+ g_source_unref (service->source);
+ }
+
+ /* The call always succeeds as it is handled in one way or another.
+ * Even presenting an error message is considered success ;-)
+ */
+ return TRUE;
+}
+
+/*
+ * Adds a request to run a batch command to the end of the queue and
+ * starts an idle source if it is not already running.
+ */
+static gboolean
+gimp_dbus_service_queue_batch (GimpDBusService *service,
+ const gchar *interpreter,
+ const gchar *command)
+{
+ g_queue_push_tail (service->queue,
+ gimp_dbus_service_batch_data_new (service,
+ interpreter,
+ command));
+
+ if (! service->source)
+ {
+ service->source = g_idle_source_new ();
+ service->timeout_source = FALSE;
+
+ g_source_set_priority (service->source, G_PRIORITY_LOW);
+ g_source_set_callback (service->source,
+ (GSourceFunc) gimp_dbus_service_process_idle,
+ service,
+ NULL);
+ g_source_attach (service->source, NULL);
+ g_source_unref (service->source);
+ }
+
+ /* The call always succeeds as it is handled in one way or another.
+ * Even presenting an error message is considered success ;-)
+ */
+ return TRUE;
+}
+
+/*
+ * Idle callback that removes the first request from the queue and
+ * handles it. If there are no more requests, the idle source is
+ * removed.
+ */
+static gboolean
+gimp_dbus_service_process_idle (GimpDBusService *service)
+{
+ IdleData *data;
+
+ if (! service->gimp->initialized || ! service->gimp->restored)
+ {
+ if (! service->timeout_source)
+ {
+ /* We are probably starting the program. No need to spam GIMP with
+ * an idle handler (which might make GIMP slower to start even
+ * with low priority).
+ * Instead let's add a timeout of half a second.
+ */
+ service->source = g_timeout_source_new (500);
+ service->timeout_source = TRUE;
+
+ g_source_set_priority (service->source, G_PRIORITY_LOW);
+ g_source_set_callback (service->source,
+ (GSourceFunc) gimp_dbus_service_process_idle,
+ service,
+ NULL);
+ g_source_attach (service->source, NULL);
+ g_source_unref (service->source);
+
+ return G_SOURCE_REMOVE;
+ }
+ else
+ {
+ return G_SOURCE_CONTINUE;
+ }
+ }
+
+ /* Process data as a FIFO. */
+ data = g_queue_pop_head (service->queue);
+
+ if (data)
+ {
+ if (data->file)
+ file_open_from_command_line (service->gimp, data->file, data->as_new,
+ NULL, /* FIXME monitor */
+ 0 /* FIXME monitor */);
+ if (data->command)
+ {
+ const gchar *commands[2] = {data->command, 0};
+
+ gimp_batch_run (service->gimp, data->interpreter,
+ commands);
+ }
+
+ gimp_dbus_service_idle_data_free (data);
+
+ if (service->timeout_source)
+ {
+ /* Now GIMP is fully functional and can respond quickly to
+ * DBus calls. Switch to a usual idle source.
+ */
+ service->source = g_idle_source_new ();
+ service->timeout_source = FALSE;
+
+ g_source_set_priority (service->source, G_PRIORITY_LOW);
+ g_source_set_callback (service->source,
+ (GSourceFunc) gimp_dbus_service_process_idle,
+ service,
+ NULL);
+ g_source_attach (service->source, NULL);
+ g_source_unref (service->source);
+
+ return G_SOURCE_REMOVE;
+ }
+ else
+ {
+ return G_SOURCE_CONTINUE;
+ }
+ }
+
+ service->source = NULL;
+
+ return G_SOURCE_REMOVE;
+}
+
+static IdleData *
+gimp_dbus_service_open_data_new (GimpDBusService *service,
+ const gchar *uri,
+ gboolean as_new)
+{
+ IdleData *data = g_slice_new (IdleData);
+
+ data->file = g_file_new_for_uri (uri);
+ data->as_new = as_new;
+ data->interpreter = NULL;
+ data->command = NULL;
+
+ return data;
+}
+
+static IdleData *
+gimp_dbus_service_batch_data_new (GimpDBusService *service,
+ const gchar *interpreter,
+ const gchar *command)
+{
+ IdleData *data = g_slice_new (IdleData);
+
+ data->file = NULL;
+ data->as_new = FALSE;
+
+ data->command = g_strdup (command);
+
+ if (g_strcmp0 (interpreter, "") == 0)
+ data->interpreter = NULL;
+ else
+ data->interpreter = g_strdup (interpreter);
+
+ return data;
+}
+
+static void
+gimp_dbus_service_idle_data_free (IdleData *data)
+{
+ if (data->file)
+ g_object_unref (data->file);
+
+ if (data->command)
+ g_free (data->command);
+ if (data->interpreter)
+ g_free (data->interpreter);
+
+ g_slice_free (IdleData, data);
+}
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