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+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * 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 <gdk-pixbuf/gdk-pixbuf.h>
+
+#ifdef G_OS_WIN32
+#include <windows.h>
+#endif
+
+#include "core/core-types.h"
+
+#ifndef GIMP_CONSOLE_COMPILATION
+/* for the DBus service names */
+#include "gui/gimpdbusservice.h"
+#endif
+
+#include "unique.h"
+
+
+static gboolean gimp_unique_dbus_open (const gchar **filenames,
+ gboolean as_new);
+#ifdef G_OS_WIN32
+static gboolean gimp_unique_win32_open (const gchar **filenames,
+ gboolean as_new);
+#endif
+static gboolean gimp_unique_dbus_batch_run (const gchar *batch_interpreter,
+ const gchar **batch_commands);
+
+gboolean
+gimp_unique_open (const gchar **filenames,
+ gboolean as_new)
+{
+#ifdef G_OS_WIN32
+ return gimp_unique_win32_open (filenames, as_new);
+#elif defined (PLATFORM_OSX)
+ /* Opening files through "Open with" from other software is likely handled
+ * instead by gui_unique_quartz_init() by gtkosx signal handling.
+ *
+ * Opening files through command lines will always create new process, because
+ * dbus is usually not installed by default on macOS (and when it is, it may
+ * not work properly). See !808 and #8997.
+ */
+ return FALSE;
+#else
+ return gimp_unique_dbus_open (filenames, as_new);
+#endif
+}
+
+gboolean
+gimp_unique_batch_run (const gchar *batch_interpreter,
+ const gchar **batch_commands)
+{
+#ifdef G_OS_WIN32
+ g_printerr ("Batch commands cannot be run in existing instance in Win32.\n");
+ return FALSE;
+#elif defined (PLATFORM_OSX)
+ /* Running batch commands through command lines will always run in the new
+ * process, because dbus is usually not installed by default on macOS (and
+ * when it is, it may not work properly). See !808 and #8997.
+ */
+ return FALSE;
+#else
+ return gimp_unique_dbus_batch_run (batch_interpreter,
+ batch_commands);
+#endif
+}
+
+static gboolean
+gimp_unique_dbus_open (const gchar **filenames,
+ gboolean as_new)
+{
+#ifndef GIMP_CONSOLE_COMPILATION
+
+ GDBusConnection *connection;
+ GError *error = NULL;
+
+ connection = g_bus_get_sync (G_BUS_TYPE_SESSION, NULL, &error);
+
+ if (connection)
+ {
+ gboolean success = TRUE;
+
+ if (filenames)
+ {
+ const gchar *method = as_new ? "OpenAsNew" : "Open";
+ gchar *cwd = g_get_current_dir ();
+ gint i;
+
+ for (i = 0; filenames[i] && success; i++)
+ {
+ GFile *file;
+
+ file = g_file_new_for_commandline_arg_and_cwd (filenames[i], cwd);
+
+ if (file)
+ {
+ GVariant *result;
+ gchar *uri = g_file_get_uri (file);
+
+ result = g_dbus_connection_call_sync (connection,
+ GIMP_DBUS_SERVICE_NAME,
+ GIMP_DBUS_SERVICE_PATH,
+ GIMP_DBUS_INTERFACE_NAME,
+ method,
+ g_variant_new ("(s)",
+ uri),
+ NULL,
+ G_DBUS_CALL_FLAGS_NO_AUTO_START,
+ -1,
+ NULL, NULL);
+
+ g_free (uri);
+
+ if (result)
+ g_variant_unref (result);
+ else
+ success = FALSE;
+
+ g_object_unref (file);
+ }
+ else
+ {
+ g_printerr ("conversion to uri failed for '%s'\n",
+ filenames[i]);
+ }
+ }
+
+ g_free (cwd);
+ }
+ else
+ {
+ GVariant *result;
+
+ result = g_dbus_connection_call_sync (connection,
+ GIMP_DBUS_SERVICE_NAME,
+ GIMP_DBUS_SERVICE_PATH,
+ GIMP_DBUS_INTERFACE_NAME,
+ "Activate",
+ NULL,
+ NULL,
+ G_DBUS_CALL_FLAGS_NO_AUTO_START,
+ -1,
+ NULL, NULL);
+ if (result)
+ g_variant_unref (result);
+ else
+ success = FALSE;
+ }
+
+ g_object_unref (connection);
+
+ return success;
+ }
+ else
+ {
+ g_printerr ("%s\n", error->message);
+ g_clear_error (&error);
+ }
+#endif
+
+ return FALSE;
+}
+
+#ifdef G_OS_WIN32
+
+static gboolean
+gimp_unique_win32_open (const gchar **filenames,
+ gboolean as_new)
+{
+#ifndef GIMP_CONSOLE_COMPILATION
+
+/* for the proxy window names */
+#include "gui/gui-unique.h"
+
+ HWND window_handle = FindWindowW (GIMP_UNIQUE_WIN32_WINDOW_CLASS,
+ GIMP_UNIQUE_WIN32_WINDOW_NAME);
+
+ if (window_handle)
+ {
+ COPYDATASTRUCT copydata = { 0, };
+
+ if (filenames)
+ {
+ gchar *cwd = g_get_current_dir ();
+ gint i;
+
+ for (i = 0; filenames[i]; i++)
+ {
+ GFile *file;
+ file = g_file_new_for_commandline_arg_and_cwd (filenames[i], cwd);
+
+ if (file)
+ {
+ gchar *uri = g_file_get_uri (file);
+
+ copydata.lpData = uri;
+ copydata.cbData = strlen (uri) + 1; /* size in bytes */
+ copydata.dwData = (long) as_new;
+
+ SendMessage (window_handle,
+ WM_COPYDATA, (WPARAM) window_handle, (LPARAM) &copydata);
+
+ g_free (uri);
+ g_object_unref (file);
+ }
+ else
+ {
+ g_printerr ("conversion to uri failed for '%s'\n",
+ filenames[i]);
+ }
+ }
+
+ g_free (cwd);
+ }
+ else
+ {
+ SendMessage (window_handle,
+ WM_COPYDATA, (WPARAM) window_handle, (LPARAM) &copydata);
+ }
+
+ return TRUE;
+ }
+
+#endif
+
+ return FALSE;
+}
+
+#endif /* G_OS_WIN32 */
+
+static gboolean
+gimp_unique_dbus_batch_run (const gchar *batch_interpreter,
+ const gchar **batch_commands)
+{
+#ifndef GIMP_CONSOLE_COMPILATION
+
+ GDBusConnection *connection;
+ GError *error = NULL;
+
+ connection = g_bus_get_sync (G_BUS_TYPE_SESSION, NULL, &error);
+
+ if (connection)
+ {
+ const gchar *method = "BatchRun";
+ gboolean success = TRUE;
+ gint i;
+
+ for (i = 0; batch_commands[i] && success; i++)
+ {
+ GVariant *result;
+ const gchar *interpreter;
+
+ /* NULL is not a valid string GVariant. */
+ interpreter = batch_interpreter ? batch_interpreter : "";
+
+ result = g_dbus_connection_call_sync (connection,
+ GIMP_DBUS_SERVICE_NAME,
+ GIMP_DBUS_SERVICE_PATH,
+ GIMP_DBUS_INTERFACE_NAME,
+ method,
+ g_variant_new ("(ss)",
+ interpreter,
+ batch_commands[i]),
+ NULL,
+ G_DBUS_CALL_FLAGS_NO_AUTO_START,
+ -1,
+ NULL, NULL);
+
+
+ if (result)
+ g_variant_unref (result);
+ else
+ success = FALSE;
+ }
+
+ g_object_unref (connection);
+
+ return success;
+ }
+ else
+ {
+ g_printerr ("%s\n", error->message);
+ g_clear_error (&error);
+ }
+#endif
+
+ return FALSE;
+}
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