[nautilus-sendto] lib: Add helper function to get info about files

[Bastien Nocera <hadess src gnome org>]

commit 46d11344b3b581c0405d4d2eff30bfb926bbbcf1
Author: Bastien Nocera <hadess hadess net>
Date:   Wed Nov 3 17:02:01 2010 +0000

    lib: Add helper function to get info about files
    
    This will make it easier for us to write plugins, so we can gather
    all the interesting information about files in one place.

 src/plugins/Makefile.am                |    3 +-
 src/plugins/nautilus-sendto-filelist.c |  209 ++++++++++++++++++++++++++++++++
 src/plugins/nautilus-sendto-filelist.h |   53 ++++++++
 src/plugins/nst-plugin-marshal.list    |    1 +
 4 files changed, 265 insertions(+), 1 deletions(-)
---
diff --git a/src/plugins/Makefile.am b/src/plugins/Makefile.am
index c0fb255..2eca8fa 100644
--- a/src/plugins/Makefile.am
+++ b/src/plugins/Makefile.am
@@ -3,7 +3,7 @@ SUBDIRS = . removable-devices evolution socialweb
 DIST_SUBDIRS = $(ALL_PLUGINS)
 
 nautilus_sendto_includedir = $(includedir)/nautilus-sendto/
-nautilus_sendto_include_HEADERS = nautilus-sendto-plugin.h nst-common.h nautilus-sendto-packer.h
+nautilus_sendto_include_HEADERS = nautilus-sendto-plugin.h nst-common.h nautilus-sendto-packer.h nautilus-sendto-filelist.h
 
 MARSHALFILES = nst-plugin-marshal.c nst-plugin-marshal.h
 BUILT_SOURCES = $(MARSHALFILES)
@@ -18,6 +18,7 @@ libnautilussendto_1_0_la_SOURCES =				\
 	nautilus-sendto-plugin.c				\
 	nst-common.c						\
 	nautilus-sendto-packer.c				\
+	nautilus-sendto-filelist.c				\
 	nst-enum-types.h					\
 	nst-enum-types.c					\
 	$(nautilus_sendto_include_HEADERS)			\
diff --git a/src/plugins/nautilus-sendto-filelist.c b/src/plugins/nautilus-sendto-filelist.c
new file mode 100644
index 0000000..214d3bd
--- /dev/null
+++ b/src/plugins/nautilus-sendto-filelist.c
@@ -0,0 +1,209 @@
+/*
+ *
+ * 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 av.
+ *
+ * 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., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301  USA.
+ *
+ * Author:  Maxim Ermilov <ermilov maxim gmail com>
+ */
+
+#include "config.h"
+
+#include <gio/gio.h>
+#include <glib/gi18n-lib.h>
+#include "nst-plugin-marshal.h"
+#include "nautilus-sendto-filelist.h"
+
+static gpointer
+nst_file_copy (gpointer boxed)
+{
+	NstFile *origin = (NstFile *) boxed;
+
+	NstFile *result = g_new (NstFile, 1);
+	result->file = g_object_ref (origin->file);
+	result->mime_type = g_strdup (origin->mime_type);
+	result->size = origin->size;
+
+	return (gpointer)result;
+}
+
+static void
+nst_file_free (gpointer boxed)
+{
+	NstFile *obj = (NstFile *) boxed;
+
+	g_free (obj->mime_type);
+	g_object_unref (obj->file);
+	g_free (obj);
+}
+
+G_DEFINE_BOXED_TYPE(NstFile, nst_file, nst_file_copy, nst_file_free)
+
+struct NstFileListPrivate {
+	GList *files; /* A list of NstFiles */
+	GList *current; /* For total size computation */
+	guint64 size; /* Total size of the files to upload */
+};
+
+G_DEFINE_TYPE (NstFileList, nst_file_list, G_TYPE_OBJECT)
+#define NST_FILE_LIST_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), NST_TYPE_FILE_LIST, NstFileListPrivate))
+
+enum {
+	SIGNAL_INFO_GATHERED,
+	SIGNAL_LAST
+};
+
+guint signals[SIGNAL_LAST];
+
+static void
+nst_file_list_class_init (NstFileListClass *klass)
+{
+	GObjectClass* gobject_class = G_OBJECT_CLASS (klass);
+
+	signals[SIGNAL_INFO_GATHERED] = g_signal_new ("info-gathered", G_TYPE_FROM_CLASS (gobject_class),
+						      G_SIGNAL_RUN_FIRST | G_SIGNAL_NO_RECURSE, 0, NULL, NULL, nst_plugin_marshal_VOID__BOOLEAN_UINT64,
+						      G_TYPE_NONE, 2, G_TYPE_BOOLEAN, G_TYPE_UINT64);
+
+	g_type_class_add_private (klass, sizeof (NstFileListPrivate));
+}
+
+static void
+nst_file_list_init (NstFileList *self)
+{
+	self->priv = NST_FILE_LIST_GET_PRIVATE (self);
+}
+
+static void get_file_info (NstFileList *list);
+
+static void
+get_file_info_cb (GObject *source_object,
+		  GAsyncResult *res,
+		  gpointer user_data)
+{
+	NstFileList *list = (NstFileList *) user_data;
+	NstFileListPrivate *p = list->priv;
+	GFileInfo *info;
+	NstFile *file;
+
+	info = g_file_query_info_finish (G_FILE (source_object),
+					 res, NULL);
+	if (info == NULL) {
+		//FIXME remove file from the list
+		g_message ("failed to get info, remove from list");
+	}
+
+	file = p->current->data;
+	file->size = g_file_info_get_attribute_uint64 (info,
+						       G_FILE_ATTRIBUTE_STANDARD_SIZE);
+	file->mime_type = g_strdup (g_file_info_get_content_type (info));
+
+	/* And onto the next file */
+	p->current = p->current->next;
+
+	get_file_info (list);
+}
+
+static void
+compute_total_size (NstFile *file,
+		    guint64 *total)
+{
+	*total += file->size;
+}
+
+static void
+get_file_info (NstFileList *list)
+{
+	NstFileListPrivate *p = list->priv;
+	NstFile *file;
+	GFile *f;
+
+	if (p->current == NULL) {
+		/* Populated the metadata, so start sending files */
+		p->current = NULL;
+		g_list_foreach (p->files, (GFunc) compute_total_size, &p->size);
+
+		/* Fire off the signal */
+		g_signal_emit (G_OBJECT (list), signals[SIGNAL_INFO_GATHERED], 0, p->files != NULL, p->size);
+		return;
+	}
+
+	/* Get our file */
+	file = p->current->data;
+	f = file->file;
+
+	g_file_query_info_async (f,
+				 G_FILE_ATTRIBUTE_STANDARD_CONTENT_TYPE","G_FILE_ATTRIBUTE_STANDARD_SIZE,
+				 G_FILE_QUERY_INFO_NONE,
+				 0,
+				 NULL,
+				 get_file_info_cb,
+				 list);
+}
+
+gboolean
+nst_file_list_set_files (NstFileList *list,
+			 GList       *file_list)
+{
+	NstFileListPrivate *p;
+	GList *l;
+
+	g_return_val_if_fail (NST_IS_FILE_LIST (list), FALSE);
+	g_return_val_if_fail (file_list != NULL, FALSE);
+
+	p = list->priv;
+
+	g_return_val_if_fail (p->files == NULL, FALSE);
+
+	for (l = file_list; l != NULL; l = l->next) {
+		const char *uri = l->data;
+		GFile *f;
+		NstFile *file;
+
+		f = g_file_new_for_uri (uri);
+		file = g_new0 (NstFile, 1);
+		file->file = f;
+		p->files = g_list_prepend (p->files, file);
+	}
+
+	p->current = p->files;
+	get_file_info (list);
+
+	return TRUE;
+}
+
+NstFile *
+nst_file_list_pop_file (NstFileList *list)
+{
+	NstFileListPrivate *p;
+	NstFile *file;
+
+	g_return_val_if_fail (NST_IS_FILE_LIST (list), NULL);
+
+	p = list->priv;
+
+	if (p->files == NULL)
+		return NULL;
+
+	file = p->files->data;
+	p->files = g_list_delete_link (p->files, p->files);
+
+	return file;
+}
+
+NstFileList *
+nst_file_list_new (void)
+{
+	return g_object_new (NST_TYPE_FILE_LIST, NULL);
+}
+
diff --git a/src/plugins/nautilus-sendto-filelist.h b/src/plugins/nautilus-sendto-filelist.h
new file mode 100644
index 0000000..354f6f4
--- /dev/null
+++ b/src/plugins/nautilus-sendto-filelist.h
@@ -0,0 +1,53 @@
+/*
+ * 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 av.
+ *
+ * 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., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301  USA.
+ *
+ * Author:  Bastien Nocera <hadess hadess net>
+ */
+
+#include <gio/gio.h>
+
+typedef struct {
+	GFile *file;
+	guint64 size;
+	char *mime_type;
+} NstFile;
+
+#define NST_TYPE_FILE (nst_file_get_type ())
+GType nst_file_get_type (void) G_GNUC_CONST;
+
+#define NST_TYPE_FILE_LIST         (nst_file_list_get_type ())
+#define NST_FILE_LIST(o)           (G_TYPE_CHECK_INSTANCE_CAST ((o), NST_TYPE_FILE_LIST, NstFileList))
+#define NST_FILE_LIST_CLASS(k)     (G_TYPE_CHECK_CLASS_CAST((k), NST_TYPE_FILE_LIST, NstFileList))
+#define NST_IS_FILE_LIST(o)        (G_TYPE_CHECK_INSTANCE_TYPE ((o), NST_TYPE_FILE_LIST))
+#define NST_IS_FILE_LIST_CLASS(k)  (G_TYPE_CHECK_CLASS_TYPE ((k), NST_TYPE_FILE_LIST))
+#define NST_FILE_LIST_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), NST_TYPE_FILE_LIST, NstFileListClass))
+
+typedef struct NstFileListPrivate NstFileListPrivate;
+
+typedef struct {
+	GObject parent;
+	NstFileListPrivate *priv;
+} NstFileList;
+
+typedef struct {
+	GObjectClass parent;
+} NstFileListClass;
+
+GType nst_file_list_get_type      (void);
+NstFileList *nst_file_list_new    (void);
+gboolean nst_file_list_set_files  (NstFileList *list,
+				   GList       *file_list);
+NstFile *nst_file_list_pop_file   (NstFileList *list);
diff --git a/src/plugins/nst-plugin-marshal.list b/src/plugins/nst-plugin-marshal.list
index 83f6a8c..69c036e 100644
--- a/src/plugins/nst-plugin-marshal.list
+++ b/src/plugins/nst-plugin-marshal.list
@@ -1,2 +1,3 @@
 VOID:STRING,STRING,STRING,OBJECT
 VOID:STRING,BOOLEAN
+VOID:BOOLEAN,UINT64