1 files changed, 357 insertions, 0 deletions
diff --git a/gedit/gedit-document-loader.c b/gedit/gedit-document-loader.c
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+/*
+ * gedit-document-loader.c
+ * This file is part of gedit
+ *
+ * Copyright (C) 2005 - Paolo Maggi
+ * Copyright (C) 2007 - Paolo Maggi, Steve Frécinaux
+ *
+ * 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 2 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, 
+ * Boston, MA 02111-1307, USA.
+ */
+ 
+/*
+ * Modified by the gedit Team, 2005-2007. See the AUTHORS file for a
+ * list of people on the gedit Team.
+ * See the ChangeLog files for a list of changes.
+ *
+ * $Id$
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <glib/gi18n.h>
+
+#include "gedit-document-loader.h"
+#include "gedit-debug.h"
+#include "gedit-metadata-manager.h"
+#include "gedit-utils.h"
+#include "gedit-marshal.h"
+#include "gedit-enum-types.h"
+
+/* Those are for the the gedit_document_loader_new() factory */
+#include "gedit-gio-document-loader.h"
+
+G_DEFINE_ABSTRACT_TYPE(GeditDocumentLoader, gedit_document_loader, G_TYPE_OBJECT)
+
+/* Signals */
+
+enum {
+ LOADING,
+ LAST_SIGNAL
+};
+
+static guint signals[LAST_SIGNAL] = { 0 };
+
+/* Properties */
+
+enum
+{
+ PROP_0,
+ PROP_DOCUMENT,
+ PROP_URI,
+ PROP_ENCODING,
+ PROP_NEWLINE_TYPE
+};
+
+static void
+gedit_document_loader_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ GeditDocumentLoader *loader = GEDIT_DOCUMENT_LOADER (object);
+
+ switch (prop_id)
+ {
+ case PROP_DOCUMENT:
+ g_return_if_fail (loader->document == NULL);
+ loader->document = g_value_get_object (value);
+ break;
+ case PROP_URI:
+ g_return_if_fail (loader->uri == NULL);
+ loader->uri = g_value_dup_string (value);
+ break;
+ case PROP_ENCODING:
+ g_return_if_fail (loader->encoding == NULL);
+ loader->encoding = g_value_get_boxed (value);
+ break;
+ case PROP_NEWLINE_TYPE:
+ loader->auto_detected_newline_type = g_value_get_enum (value);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+gedit_document_loader_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ GeditDocumentLoader *loader = GEDIT_DOCUMENT_LOADER (object);
+
+ switch (prop_id)
+ {
+ case PROP_DOCUMENT:
+ g_value_set_object (value, loader->document);
+ break;
+ case PROP_URI:
+ g_value_set_string (value, loader->uri);
+ break;
+ case PROP_ENCODING:
+ g_value_set_boxed (value, gedit_document_loader_get_encoding (loader));
+ break;
+ case PROP_NEWLINE_TYPE:
+ g_value_set_enum (value, loader->auto_detected_newline_type);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+gedit_document_loader_finalize (GObject *object)
+{
+ GeditDocumentLoader *loader = GEDIT_DOCUMENT_LOADER (object);
+
+ g_free (loader->uri);
+
+ if (loader->info)
+ g_object_unref (loader->info);
+
+ G_OBJECT_CLASS (gedit_document_loader_parent_class)->finalize (object);
+}
+
+static void
+gedit_document_loader_dispose (GObject *object)
+{
+ GeditDocumentLoader *loader = GEDIT_DOCUMENT_LOADER (object);
+
+ if (loader->info != NULL)
+ {
+ g_object_unref (loader->info);
+ loader->info = NULL;
+ }
+
+ G_OBJECT_CLASS (gedit_document_loader_parent_class)->dispose (object);
+}
+
+static void
+gedit_document_loader_class_init (GeditDocumentLoaderClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+ object_class->finalize = gedit_document_loader_finalize;
+ object_class->dispose = gedit_document_loader_dispose;
+ object_class->get_property = gedit_document_loader_get_property;
+ object_class->set_property = gedit_document_loader_set_property;
+
+ g_object_class_install_property (object_class,
+ PROP_DOCUMENT,
+ g_param_spec_object ("document",
+ "Document",
+ "The GeditDocument this GeditDocumentLoader is associated with",
+ GEDIT_TYPE_DOCUMENT,
+ G_PARAM_READWRITE |
+ G_PARAM_CONSTRUCT_ONLY |
+ G_PARAM_STATIC_STRINGS));
+
+ g_object_class_install_property (object_class,
+ PROP_URI,
+ g_param_spec_string ("uri",
+ "URI",
+ "The URI this GeditDocumentLoader loads the document from",
+ "",
+ G_PARAM_READWRITE |
+ G_PARAM_CONSTRUCT_ONLY));
+
+ g_object_class_install_property (object_class,
+ PROP_ENCODING,
+ g_param_spec_boxed ("encoding",
+ "Encoding",
+ "The encoding of the saved file",
+ GEDIT_TYPE_ENCODING,
+ G_PARAM_READWRITE |
+ G_PARAM_CONSTRUCT_ONLY |
+ G_PARAM_STATIC_STRINGS));
+
+ g_object_class_install_property (object_class, PROP_NEWLINE_TYPE,
+ g_param_spec_enum ("newline-type",
+ "Newline type",
+ "The accepted types of line ending",
+ GEDIT_TYPE_DOCUMENT_NEWLINE_TYPE,
+ GEDIT_DOCUMENT_NEWLINE_TYPE_LF,
+ G_PARAM_READWRITE |
+ G_PARAM_STATIC_NAME |
+ G_PARAM_STATIC_BLURB));
+
+ signals[LOADING] =
+ g_signal_new ("loading",
+ G_OBJECT_CLASS_TYPE (object_class),
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (GeditDocumentLoaderClass, loading),
+ NULL, NULL,
+ gedit_marshal_VOID__BOOLEAN_POINTER,
+ G_TYPE_NONE,
+ 2,
+ G_TYPE_BOOLEAN,
+ G_TYPE_POINTER);
+}
+
+static void
+gedit_document_loader_init (GeditDocumentLoader *loader)
+{
+ loader->used = FALSE;
+ loader->auto_detected_newline_type = GEDIT_DOCUMENT_NEWLINE_TYPE_DEFAULT;
+}
+
+void
+gedit_document_loader_loading (GeditDocumentLoader *loader,
+ gboolean completed,
+ GError *error)
+{
+ /* the object will be unrefed in the callback of the loading signal
+ * (when completed == TRUE), so we need to prevent finalization.
+ */
+ if (completed)
+ {
+ g_object_ref (loader);
+ }
+
+ g_signal_emit (loader, signals[LOADING], 0, completed, error);
+
+ if (completed)
+ {
+ if (error == NULL)
+ gedit_debug_message (DEBUG_LOADER, "load completed");
+ else
+ gedit_debug_message (DEBUG_LOADER, "load failed");
+
+ g_object_unref (loader);
+ }
+}
+
+/* This is a factory method that returns an appopriate loader
+ * for the given uri.
+ */
+GeditDocumentLoader *
+gedit_document_loader_new (GeditDocument *doc,
+ const gchar *uri,
+ const GeditEncoding *encoding)
+{
+ GeditDocumentLoader *loader;
+ GType loader_type;
+
+ g_return_val_if_fail (GEDIT_IS_DOCUMENT (doc), NULL);
+
+ /* At the moment we just use gio loader in all cases...
+ * In the future it would be great to have a PolicyKit
+ * loader to get permission to save systen files etc */
+ loader_type = GEDIT_TYPE_GIO_DOCUMENT_LOADER;
+
+ loader = GEDIT_DOCUMENT_LOADER (g_object_new (loader_type,
+ "document", doc,
+ "uri", uri,
+ "encoding", encoding,
+ NULL));
+
+ return loader;
+}
+
+/* If enconding == NULL, the encoding will be autodetected */
+void
+gedit_document_loader_load (GeditDocumentLoader *loader)
+{
+ gedit_debug (DEBUG_LOADER);
+
+ g_return_if_fail (GEDIT_IS_DOCUMENT_LOADER (loader));
+
+ /* the loader can be used just once, then it must be thrown away */
+ g_return_if_fail (loader->used == FALSE);
+ loader->used = TRUE;
+
+ GEDIT_DOCUMENT_LOADER_GET_CLASS (loader)->load (loader);
+}
+
+gboolean 
+gedit_document_loader_cancel (GeditDocumentLoader *loader)
+{
+ gedit_debug (DEBUG_LOADER);
+
+ g_return_val_if_fail (GEDIT_IS_DOCUMENT_LOADER (loader), FALSE);
+
+ return GEDIT_DOCUMENT_LOADER_GET_CLASS (loader)->cancel (loader);
+}
+
+GeditDocument *
+gedit_document_loader_get_document (GeditDocumentLoader *loader)
+{
+ g_return_val_if_fail (GEDIT_IS_DOCUMENT_LOADER (loader), NULL);
+
+ return loader->document;
+}
+
+/* Returns STDIN_URI if loading from stdin */
+const gchar *
+gedit_document_loader_get_uri (GeditDocumentLoader *loader)
+{
+ g_return_val_if_fail (GEDIT_IS_DOCUMENT_LOADER (loader), NULL);
+
+ return loader->uri;
+}
+
+goffset
+gedit_document_loader_get_bytes_read (GeditDocumentLoader *loader)
+{
+ g_return_val_if_fail (GEDIT_IS_DOCUMENT_LOADER (loader), 0);
+
+ return GEDIT_DOCUMENT_LOADER_GET_CLASS (loader)->get_bytes_read (loader);
+}
+
+const GeditEncoding *
+gedit_document_loader_get_encoding (GeditDocumentLoader *loader)
+{
+ g_return_val_if_fail (GEDIT_IS_DOCUMENT_LOADER (loader), NULL);
+
+ if (loader->encoding != NULL)
+ return loader->encoding;
+
+ g_return_val_if_fail (loader->auto_detected_encoding != NULL, 
+ gedit_encoding_get_current ());
+
+ return loader->auto_detected_encoding;
+}
+
+GeditDocumentNewlineType
+gedit_document_loader_get_newline_type (GeditDocumentLoader *loader)
+{
+ g_return_val_if_fail (GEDIT_IS_DOCUMENT_LOADER (loader),
+ GEDIT_DOCUMENT_NEWLINE_TYPE_LF);
+
+ return loader->auto_detected_newline_type;
+}
+
+GFileInfo *
+gedit_document_loader_get_info (GeditDocumentLoader *loader)
+{
+ g_return_val_if_fail (GEDIT_IS_DOCUMENT_LOADER (loader), NULL);
+
+ return loader->info;
+}