Adding upstream version 3.38.2.upstream/3.38.2upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 343 insertions, 0 deletions

diff --git a/src/nautilus-keyfile-metadata.c b/src/nautilus-keyfile-metadata.c
new file mode 100644
index 0000000..76b4fae
--- /dev/null
+++ b/src/nautilus-keyfile-metadata.c
@@ -0,0 +1,343 @@
+/*
+ * Nautilus
+ *
+ * Copyright (C) 2011 Red Hat, Inc.
+ *
+ * Nautilus 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 2 of the
+ * License, or (at your option) any later version.
+ *
+ * Nautilus 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; see the file COPYING.  If not,
+ * see <http://www.gnu.org/licenses/>.
+ *
+ * Authors: Cosimo Cecchi <cosimoc@redhat.com>
+ */
+
+#include <config.h>
+
+#include "nautilus-keyfile-metadata.h"
+
+#include "nautilus-directory-notify.h"
+#include "nautilus-file-private.h"
+#include "nautilus-file-utilities.h"
+
+#include <glib/gstdio.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+typedef struct
+{
+    GKeyFile *keyfile;
+    guint save_in_idle_id;
+} KeyfileMetadataData;
+
+static GHashTable *data_hash = NULL;
+
+static KeyfileMetadataData *
+keyfile_metadata_data_new (const char *keyfile_filename)
+{
+    KeyfileMetadataData *data;
+    GKeyFile *retval;
+    GError *error = NULL;
+
+    retval = g_key_file_new ();
+
+    g_key_file_load_from_file (retval,
+                               keyfile_filename,
+                               G_KEY_FILE_NONE,
+                               &error);
+
+    if (error != NULL)
+    {
+        if (!g_error_matches (error,
+                              G_FILE_ERROR,
+                              G_FILE_ERROR_NOENT))
+        {
+            g_print ("Unable to open the desktop metadata keyfile: %s\n",
+                     error->message);
+        }
+
+        g_error_free (error);
+    }
+
+    data = g_slice_new0 (KeyfileMetadataData);
+    data->keyfile = retval;
+
+    return data;
+}
+
+static void
+keyfile_metadata_data_free (KeyfileMetadataData *data)
+{
+    g_key_file_unref (data->keyfile);
+
+    if (data->save_in_idle_id != 0)
+    {
+        g_source_remove (data->save_in_idle_id);
+    }
+
+    g_slice_free (KeyfileMetadataData, data);
+}
+
+static GKeyFile *
+get_keyfile (const char *keyfile_filename)
+{
+    KeyfileMetadataData *data;
+
+    if (data_hash == NULL)
+    {
+        data_hash = g_hash_table_new_full (g_str_hash,
+                                           g_str_equal,
+                                           g_free,
+                                           (GDestroyNotify) keyfile_metadata_data_free);
+    }
+
+    data = g_hash_table_lookup (data_hash, keyfile_filename);
+
+    if (data == NULL)
+    {
+        data = keyfile_metadata_data_new (keyfile_filename);
+
+        g_hash_table_insert (data_hash,
+                             g_strdup (keyfile_filename),
+                             data);
+    }
+
+    return data->keyfile;
+}
+
+static gboolean
+save_in_idle_cb (const gchar *keyfile_filename)
+{
+    KeyfileMetadataData *data;
+    gchar *contents;
+    gsize length;
+    GError *error = NULL;
+
+    data = g_hash_table_lookup (data_hash, keyfile_filename);
+    data->save_in_idle_id = 0;
+
+    contents = g_key_file_to_data (data->keyfile, &length, NULL);
+
+    if (contents != NULL)
+    {
+        g_file_set_contents (keyfile_filename,
+                             contents, length,
+                             &error);
+        g_free (contents);
+    }
+
+    if (error != NULL)
+    {
+        g_warning ("Couldn't save the desktop metadata keyfile to disk: %s",
+                   error->message);
+        g_error_free (error);
+    }
+
+    return FALSE;
+}
+
+static void
+save_in_idle (const char *keyfile_filename)
+{
+    KeyfileMetadataData *data;
+
+    g_return_if_fail (data_hash != NULL);
+
+    data = g_hash_table_lookup (data_hash, keyfile_filename);
+    g_return_if_fail (data != NULL);
+
+    if (data->save_in_idle_id != 0)
+    {
+        return;
+    }
+
+    data->save_in_idle_id = g_idle_add_full (G_PRIORITY_DEFAULT_IDLE,
+                                             (GSourceFunc) save_in_idle_cb,
+                                             g_strdup (keyfile_filename),
+                                             g_free);
+}
+
+void
+nautilus_keyfile_metadata_set_string (NautilusFile *file,
+                                      const char   *keyfile_filename,
+                                      const gchar  *name,
+                                      const gchar  *key,
+                                      const gchar  *string)
+{
+    GKeyFile *keyfile;
+
+    keyfile = get_keyfile (keyfile_filename);
+
+    g_key_file_set_string (keyfile,
+                           name,
+                           key,
+                           string);
+
+    save_in_idle (keyfile_filename);
+
+    if (nautilus_keyfile_metadata_update_from_keyfile (file, keyfile_filename, name))
+    {
+        nautilus_file_changed (file);
+    }
+}
+
+#define STRV_TERMINATOR "@x-nautilus-desktop-metadata-term@"
+
+void
+nautilus_keyfile_metadata_set_stringv (NautilusFile       *file,
+                                       const char         *keyfile_filename,
+                                       const char         *name,
+                                       const char         *key,
+                                       const char * const *stringv)
+{
+    GKeyFile *keyfile;
+    guint length;
+    gchar **actual_stringv = NULL;
+    gboolean free_strv = FALSE;
+
+    keyfile = get_keyfile (keyfile_filename);
+
+    /* if we would be setting a single-length strv, append a fake
+     * terminator to the array, to be able to differentiate it later from
+     * the single string case
+     */
+    length = g_strv_length ((gchar **) stringv);
+
+    if (length == 1)
+    {
+        actual_stringv = g_malloc0 (3 * sizeof (gchar *));
+        actual_stringv[0] = (gchar *) stringv[0];
+        actual_stringv[1] = STRV_TERMINATOR;
+        actual_stringv[2] = NULL;
+
+        length = 2;
+        free_strv = TRUE;
+    }
+    else
+    {
+        actual_stringv = (gchar **) stringv;
+    }
+
+    g_key_file_set_string_list (keyfile,
+                                name,
+                                key,
+                                (const gchar **) actual_stringv,
+                                length);
+
+    save_in_idle (keyfile_filename);
+
+    if (nautilus_keyfile_metadata_update_from_keyfile (file, keyfile_filename, name))
+    {
+        nautilus_file_changed (file);
+    }
+
+    if (free_strv)
+    {
+        g_free (actual_stringv);
+    }
+}
+
+gboolean
+nautilus_keyfile_metadata_update_from_keyfile (NautilusFile *file,
+                                               const char   *keyfile_filename,
+                                               const gchar  *name)
+{
+    gchar **keys, **values;
+    const gchar *actual_values[2];
+    const gchar *key, *value;
+    gchar *gio_key;
+    gsize length, values_length;
+    GKeyFile *keyfile;
+    GFileInfo *info;
+    gint idx;
+    gboolean res;
+
+    keyfile = get_keyfile (keyfile_filename);
+
+    keys = g_key_file_get_keys (keyfile,
+                                name,
+                                &length,
+                                NULL);
+
+    if (keys == NULL)
+    {
+        return FALSE;
+    }
+
+    info = g_file_info_new ();
+
+    for (idx = 0; idx < length; idx++)
+    {
+        key = keys[idx];
+        values = g_key_file_get_string_list (keyfile,
+                                             name,
+                                             key,
+                                             &values_length,
+                                             NULL);
+
+        gio_key = g_strconcat ("metadata::", key, NULL);
+
+        if (values_length < 1)
+        {
+            continue;
+        }
+        else if (values_length == 1)
+        {
+            g_file_info_set_attribute_string (info,
+                                              gio_key,
+                                              values[0]);
+        }
+        else if (values_length == 2)
+        {
+            /* deal with the fact that single-length strv are stored
+             * with an additional terminator in the keyfile string, to differentiate
+             * them from the regular string case.
+             */
+            value = values[1];
+
+            if (g_strcmp0 (value, STRV_TERMINATOR) == 0)
+            {
+                /* if the 2nd value is the terminator, remove it */
+                actual_values[0] = values[0];
+                actual_values[1] = NULL;
+
+                g_file_info_set_attribute_stringv (info,
+                                                   gio_key,
+                                                   (gchar **) actual_values);
+            }
+            else
+            {
+                /* otherwise, set it as a regular strv */
+                g_file_info_set_attribute_stringv (info,
+                                                   gio_key,
+                                                   values);
+            }
+        }
+        else
+        {
+            g_file_info_set_attribute_stringv (info,
+                                               gio_key,
+                                               values);
+        }
+
+        g_free (gio_key);
+        g_strfreev (values);
+    }
+
+    res = nautilus_file_update_metadata_from_info (file, info);
+
+    g_strfreev (keys);
+    g_object_unref (info);
+
+    return res;
+}