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| author | Alexander van der Meij <[email protected]> | 2014-08-29 20:52:13 +0200 |
|---|---|---|
| committer | Stefano Karapetsas <[email protected]> | 2014-10-27 11:23:51 +0100 |
| commit | 451eef9b275ce006b270a3569d96e531e24dd15a (patch) | |
| tree | c69beecbd84db9fc21479f4b0b5c2246c466d819 /libcaja-private/caja-extensions.c | |
| parent | 2ce11c50a5f7cca914af7646cae5fb6d5362b5cf (diff) | |
| download | caja-451eef9b275ce006b270a3569d96e531e24dd15a.tar.bz2 caja-451eef9b275ce006b270a3569d96e531e24dd15a.tar.xz | |
implementation of extension interface and status management (gsoc2014)
Diffstat (limited to 'libcaja-private/caja-extensions.c')
| -rw-r--r-- | libcaja-private/caja-extensions.c | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/libcaja-private/caja-extensions.c b/libcaja-private/caja-extensions.c new file mode 100644 index 00000000..b15923fd --- /dev/null +++ b/libcaja-private/caja-extensions.c @@ -0,0 +1,205 @@ +/* + * caja-extension.c - extension management functions + * + * Copyright (C) 2014 MATE Desktop. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library 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 + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the Free + * Software Foundation, Inc., 51 Franklin St, Fifth Floor, + * Boston, MA 02110-1301, USA. + * + * Author: Alexander van der Meij <[email protected]> + */ + +#include "caja-extensions.h" + +#include "caja-global-preferences.h" +#include "caja-module.h" + +#include <string.h> + + +static GList *caja_extensions = NULL; + + +Extension * +extension_new (gchar *filename, gboolean state, GObject *module) +{ + Extension *ext; + + ext = g_new0 (Extension, 1); + ext->filename = filename; + ext->state = state; + ext->module = module; + return ext; +} + +/* functions related to persistent configuration through gsettings: */ + +static gboolean +gsettings_key_has_value (const gchar *value) +{ + gchar **list; + gint i; + + list = g_settings_get_strv (caja_extension_preferences, + CAJA_PREFERENCES_DISABLED_EXTENSIONS); + + if (list != NULL) + { + for (i = 0; list[i]; i++) + { + if (g_ascii_strcasecmp (value, list[i]) == 0) + { + g_strfreev (list); + return TRUE; + } + } + } + g_strfreev (list); + return FALSE; +} + +static gboolean +gsettings_append_to_list (const char *value) +{ + gchar **current; + gchar **new; + gint size; + gboolean retval; + + current = g_settings_get_strv (caja_extension_preferences, + CAJA_PREFERENCES_DISABLED_EXTENSIONS); + + for (size = 0; current[size] != NULL; size++); + + size += 1; + size += 1; + + new = g_realloc_n (current, size, sizeof (gchar *)); + + new[size - 2] = g_strdup (value); + new[size - 1] = NULL; + + retval = g_settings_set_strv (caja_extension_preferences, + CAJA_PREFERENCES_DISABLED_EXTENSIONS, + (const gchar **) new); + + g_strfreev (new); + return retval; +} + +static gboolean +gsettings_remove_from_list (const char *value) +{ + gchar **current; + GArray *array; + gint i; + gboolean retval; + + current = g_settings_get_strv (caja_extension_preferences, + CAJA_PREFERENCES_DISABLED_EXTENSIONS); + + array = g_array_new (TRUE, TRUE, sizeof (gchar *)); + + for (i = 0; current[i] != NULL; i++) + { + if (g_strcmp0 (current[i], value) != 0) + array = g_array_append_val (array, current[i]); + } + + retval = g_settings_set_strv (caja_extension_preferences, + CAJA_PREFERENCES_DISABLED_EXTENSIONS, + (const gchar **) array->data); + + g_strfreev (current); + g_array_free (array, TRUE); + return retval; +} + +/* functions related to the extension management */ + +static gboolean +caja_extension_is_disabled (const gchar *extname) +{ + if (gsettings_key_has_value (extname)) + { + return TRUE; + } + return FALSE; +} + +GList * +caja_extensions_get_for_type (GType type) +{ + GList *l; + GList *ret = NULL; + + for (l = caja_extensions; l != NULL; l = l->next) + { + Extension *ext = l->data; + if (ext->state) // only load enabled extensions + { + if (G_TYPE_CHECK_INSTANCE_TYPE (G_OBJECT (ext->module), type)) + { + g_object_ref (ext->module); + ret = g_list_prepend (ret, ext->module); + } + } + } + g_list_free (l); + return ret; +} + +GList * +caja_extensions_get_list (void) +{ + return caja_extensions; +} + +void +caja_extension_register (gchar *filename, GObject *module) +{ + gboolean state = TRUE; // new extensions are enabled by default. + gchar *extname; + + extname = g_strndup (filename, strlen(filename) - 3); + + if (caja_extension_is_disabled (extname)) + state = FALSE; + + Extension *ext = extension_new (extname, state, module); + caja_extensions = g_list_append (caja_extensions, ext); +} + +gboolean +caja_extension_set_state (Extension *ext, gboolean new_state) +{ + if (ext) + { + g_return_val_if_fail (ext->state != new_state, FALSE); + ext->state = new_state; + } + + gboolean retval; + if (new_state) { + retval = gsettings_remove_from_list (ext->filename); + } + else { + retval = gsettings_append_to_list (ext->filename); + } + + g_return_val_if_fail (retval == TRUE, FALSE); + return TRUE; +} + |