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-rw-r--r--plug-ins/help/help.c352
1 files changed, 352 insertions, 0 deletions
diff --git a/plug-ins/help/help.c b/plug-ins/help/help.c
new file mode 100644
index 0000000..8d913b7
--- /dev/null
+++ b/plug-ins/help/help.c
@@ -0,0 +1,352 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * The GIMP Help plug-in
+ * Copyright (C) 1999-2008 Sven Neumann <sven@gimp.org>
+ * Michael Natterer <mitch@gimp.org>
+ * Henrik Brix Andersen <brix@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 <string.h> /* strlen */
+
+#include <glib.h>
+
+#include "libgimp/gimp.h"
+
+#include "gimphelp.h"
+
+#include "libgimp/stdplugins-intl.h"
+
+
+/* defines */
+
+#define GIMP_HELP_EXT_PROC "extension-gimp-help"
+#define GIMP_HELP_TEMP_EXT_PROC "extension-gimp-help-temp"
+
+
+typedef struct
+{
+ gchar *procedure;
+ gchar *help_domain;
+ gchar *help_locales;
+ gchar *help_id;
+} IdleHelp;
+
+
+/* forward declarations */
+
+static void query (void);
+static void run (const gchar *name,
+ gint nparams,
+ const GimpParam *param,
+ gint *nreturn_vals,
+ GimpParam **return_vals);
+
+static void temp_proc_install (void);
+static void temp_proc_run (const gchar *name,
+ gint nparams,
+ const GimpParam *param,
+ gint *nreturn_vals,
+ GimpParam **return_vals);
+
+static void load_help (const gchar *procedure,
+ const gchar *help_domain,
+ const gchar *help_locales,
+ const gchar *help_id);
+static gboolean load_help_idle (gpointer data);
+
+static GimpHelpProgress * load_help_progress_new (void);
+
+
+/* local variables */
+
+static GMainLoop *main_loop = NULL;
+
+const GimpPlugInInfo PLUG_IN_INFO =
+{
+ NULL, /* init_proc */
+ NULL, /* quit_proc */
+ query, /* query_proc */
+ run, /* run_proc */
+};
+
+
+MAIN ()
+
+static void
+query (void)
+{
+ static const GimpParamDef args[] =
+ {
+ { GIMP_PDB_INT32, "num-domain-names", "" },
+ { GIMP_PDB_STRINGARRAY, "domain-names", "" },
+ { GIMP_PDB_INT32, "num-domain-uris", "" },
+ { GIMP_PDB_STRINGARRAY, "domain-uris", "" }
+ };
+
+ gimp_install_procedure (GIMP_HELP_EXT_PROC,
+ "", /* FIXME */
+ "", /* FIXME */
+ "Sven Neumann <sven@gimp.org>, "
+ "Michael Natterer <mitch@gimp.org>, "
+ "Henrik Brix Andersen <brix@gimp.org>",
+ "Sven Neumann, Michael Natterer & Henrik Brix Andersen",
+ "1999-2008",
+ NULL,
+ "",
+ GIMP_EXTENSION,
+ G_N_ELEMENTS (args), 0,
+ args, NULL);
+}
+
+static void
+run (const gchar *name,
+ gint nparams,
+ const GimpParam *param,
+ gint *nreturn_vals,
+ GimpParam **return_vals)
+{
+ static GimpParam values[1];
+ GimpPDBStatusType status = GIMP_PDB_SUCCESS;
+
+ INIT_I18N ();
+
+ /* make sure all the arguments are there */
+ if (nparams == 4)
+ {
+ if (! gimp_help_init (param[0].data.d_int32,
+ param[1].data.d_stringarray,
+ param[2].data.d_int32,
+ param[3].data.d_stringarray))
+ {
+ status = GIMP_PDB_CALLING_ERROR;
+ }
+ }
+ else
+ {
+ g_printerr ("help: wrong number of arguments in procedure call.\n");
+
+ status = GIMP_PDB_CALLING_ERROR;
+ }
+
+ if (status == GIMP_PDB_SUCCESS)
+ {
+ main_loop = g_main_loop_new (NULL, FALSE);
+
+ temp_proc_install ();
+
+ gimp_extension_ack ();
+ gimp_extension_enable ();
+
+ g_main_loop_run (main_loop);
+
+ g_main_loop_unref (main_loop);
+ main_loop = NULL;
+
+ gimp_uninstall_temp_proc (GIMP_HELP_TEMP_EXT_PROC);
+ }
+
+ values[0].type = GIMP_PDB_STATUS;
+ values[0].data.d_status = status;
+
+ *nreturn_vals = 1;
+ *return_vals = values;
+}
+
+static void
+temp_proc_install (void)
+{
+ static const GimpParamDef args[] =
+ {
+ { GIMP_PDB_STRING, "procedure", "The procedure of the browser to use" },
+ { GIMP_PDB_STRING, "help-domain", "Help domain to use" },
+ { GIMP_PDB_STRING, "help-locales", "Language to use" },
+ { GIMP_PDB_STRING, "help-id", "Help ID to open" }
+ };
+
+ gimp_install_temp_proc (GIMP_HELP_TEMP_EXT_PROC,
+ "DON'T USE THIS ONE",
+ "(Temporary procedure)",
+ "Sven Neumann <sven@gimp.org>, "
+ "Michael Natterer <mitch@gimp.org>"
+ "Henrik Brix Andersen <brix@gimp.org",
+ "Sven Neumann, Michael Natterer & Henrik Brix Andersen",
+ "1999-2008",
+ NULL,
+ "",
+ GIMP_TEMPORARY,
+ G_N_ELEMENTS (args), 0,
+ args, NULL,
+ temp_proc_run);
+}
+
+static void
+temp_proc_run (const gchar *name,
+ gint nparams,
+ const GimpParam *param,
+ gint *nreturn_vals,
+ GimpParam **return_vals)
+{
+ static GimpParam values[1];
+ GimpPDBStatusType status = GIMP_PDB_SUCCESS;
+ const gchar *procedure = NULL;
+ const gchar *help_domain = GIMP_HELP_DEFAULT_DOMAIN;
+ const gchar *help_locales = NULL;
+ const gchar *help_id = GIMP_HELP_DEFAULT_ID;
+
+ *nreturn_vals = 1;
+ *return_vals = values;
+
+ /* make sure all the arguments are there */
+ if (nparams == 4)
+ {
+ if (param[0].data.d_string && strlen (param[0].data.d_string))
+ procedure = param[0].data.d_string;
+
+ if (param[1].data.d_string && strlen (param[1].data.d_string))
+ help_domain = param[1].data.d_string;
+
+ if (param[2].data.d_string && strlen (param[2].data.d_string))
+ help_locales = param[2].data.d_string;
+
+ if (param[3].data.d_string && strlen (param[3].data.d_string))
+ help_id = param[3].data.d_string;
+ }
+
+ if (! procedure)
+ status = GIMP_PDB_CALLING_ERROR;
+
+ values[0].type = GIMP_PDB_STATUS;
+ values[0].data.d_status = status;
+
+ if (status == GIMP_PDB_SUCCESS)
+ load_help (procedure, help_domain, help_locales, help_id);
+}
+
+static void
+load_help (const gchar *procedure,
+ const gchar *help_domain,
+ const gchar *help_locales,
+ const gchar *help_id)
+{
+ IdleHelp *idle_help = g_slice_new (IdleHelp);
+
+ idle_help->procedure = g_strdup (procedure);
+ idle_help->help_domain = g_strdup (help_domain);
+ idle_help->help_locales = g_strdup (help_locales);
+ idle_help->help_id = g_strdup (help_id);
+
+ g_idle_add (load_help_idle, idle_help);
+}
+
+static gboolean
+load_help_idle (gpointer data)
+{
+ IdleHelp *idle_help = data;
+ GimpHelpDomain *domain;
+
+ domain = gimp_help_lookup_domain (idle_help->help_domain);
+
+ if (domain)
+ {
+ GimpHelpProgress *progress = NULL;
+ GList *locales;
+ gchar *uri;
+ gboolean fatal_error;
+
+ locales = gimp_help_parse_locales (idle_help->help_locales);
+
+ if (! g_str_has_prefix (domain->help_uri, "file:"))
+ progress = load_help_progress_new ();
+
+ uri = gimp_help_domain_map (domain, locales, idle_help->help_id,
+ progress, NULL, &fatal_error);
+
+ if (progress)
+ gimp_help_progress_free (progress);
+
+ g_list_free_full (locales, (GDestroyNotify) g_free);
+
+ if (uri)
+ {
+ GimpParam *return_vals;
+ gint n_return_vals;
+
+#ifdef GIMP_HELP_DEBUG
+ g_printerr ("help: calling '%s' for '%s'\n",
+ idle_help->procedure, uri);
+#endif
+
+ return_vals = gimp_run_procedure (idle_help->procedure,
+ &n_return_vals,
+ GIMP_PDB_STRING, uri,
+ GIMP_PDB_END);
+
+ gimp_destroy_params (return_vals, n_return_vals);
+
+ g_free (uri);
+ }
+ else if (fatal_error)
+ {
+ g_main_loop_quit (main_loop);
+ }
+ }
+
+ g_free (idle_help->procedure);
+ g_free (idle_help->help_domain);
+ g_free (idle_help->help_locales);
+ g_free (idle_help->help_id);
+
+ g_slice_free (IdleHelp, idle_help);
+
+ return FALSE;
+}
+
+static void
+load_help_progress_start (const gchar *message,
+ gboolean cancelable,
+ gpointer user_data)
+{
+ gimp_progress_init (message);
+}
+
+static void
+load_help_progress_update (gdouble value,
+ gpointer user_data)
+{
+ gimp_progress_update (value);
+}
+
+static void
+load_help_progress_end (gpointer user_data)
+{
+ gimp_progress_end ();
+}
+
+static GimpHelpProgress *
+load_help_progress_new (void)
+{
+ static const GimpHelpProgressVTable vtable =
+ {
+ load_help_progress_start,
+ load_help_progress_end,
+ load_help_progress_update
+ };
+
+ return gimp_help_progress_new (&vtable, NULL);
+}
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