Imported development version of the "undelete" plug-in

Makefile

@@ -108,6 +108,7 @@ dist:
 		$(PACKAGE)-$(VERSION)/src/plugins/subversion.c \
 		$(PACKAGE)-$(VERSION)/src/plugins/template.c \
 		$(PACKAGE)-$(VERSION)/src/plugins/trash.c \
+		$(PACKAGE)-$(VERSION)/src/plugins/undelete.c \
 		$(PACKAGE)-$(VERSION)/src/plugins/volumes.c \
 		$(PACKAGE)-$(VERSION)/src/plugins/Makefile \
 		$(PACKAGE)-$(VERSION)/src/plugins/common.c \

src/plugins/Makefile

@@ -1,4 +1,4 @@
-TARGETS	= $(OBJDIR)backup.so $(OBJDIR)cvs.so $(OBJDIR)dirtree.so $(OBJDIR)favorites.so $(OBJDIR)git.so $(OBJDIR)make.so $(OBJDIR)preview.so $(OBJDIR)properties.so $(OBJDIR)selection.so $(OBJDIR)subversion.so $(OBJDIR)template.so $(OBJDIR)trash.so $(OBJDIR)volumes.so
+TARGETS	= $(OBJDIR)backup.so $(OBJDIR)cvs.so $(OBJDIR)dirtree.so $(OBJDIR)favorites.so $(OBJDIR)git.so $(OBJDIR)make.so $(OBJDIR)preview.so $(OBJDIR)properties.so $(OBJDIR)selection.so $(OBJDIR)subversion.so $(OBJDIR)template.so $(OBJDIR)trash.so $(OBJDIR)undelete.so $(OBJDIR)volumes.so
 OBJDIR	=
 PREFIX	= /usr/local
 DESTDIR	=
@@ -104,6 +104,13 @@ trash_LDFLAGS = $(LDFLAGSF) $(LDFLAGS)
 $(OBJDIR)trash.so: $(trash_OBJS)
 	$(CCSHARED) -o $(OBJDIR)trash.so $(trash_OBJS) $(trash_LDFLAGS)
 
+undelete_OBJS = $(OBJDIR)undelete.o
+undelete_CFLAGS = $(CPPFLAGSF) $(CPPFLAGS) $(CFLAGSF) $(CFLAGS)
+undelete_LDFLAGS = $(LDFLAGSF) $(LDFLAGS)
+
+$(OBJDIR)undelete.so: $(undelete_OBJS)
+	$(CCSHARED) -o $(OBJDIR)undelete.so $(undelete_OBJS) $(undelete_LDFLAGS)
+
 volumes_OBJS = $(OBJDIR)volumes.o
 volumes_CFLAGS = $(CPPFLAGSF) $(CPPFLAGS) $(CFLAGSF) $(CFLAGS)
 volumes_LDFLAGS = $(LDFLAGSF) $(LDFLAGS)
@@ -147,11 +154,14 @@ $(OBJDIR)template.o: template.c ../../include/Browser.h
 $(OBJDIR)trash.o: trash.c ../../include/Browser.h
 	$(CC) $(trash_CFLAGS) -o $(OBJDIR)trash.o -c trash.c
 
+$(OBJDIR)undelete.o: undelete.c ../../include/Browser.h
+	$(CC) $(undelete_CFLAGS) -o $(OBJDIR)undelete.o -c undelete.c
+
 $(OBJDIR)volumes.o: volumes.c ../../include/Browser.h
 	$(CC) $(volumes_CFLAGS) -o $(OBJDIR)volumes.o -c volumes.c
 
 clean:
-	$(RM) -- $(backup_OBJS) $(cvs_OBJS) $(dirtree_OBJS) $(favorites_OBJS) $(git_OBJS) $(make_OBJS) $(preview_OBJS) $(properties_OBJS) $(selection_OBJS) $(subversion_OBJS) $(template_OBJS) $(trash_OBJS) $(volumes_OBJS)
+	$(RM) -- $(backup_OBJS) $(cvs_OBJS) $(dirtree_OBJS) $(favorites_OBJS) $(git_OBJS) $(make_OBJS) $(preview_OBJS) $(properties_OBJS) $(selection_OBJS) $(subversion_OBJS) $(template_OBJS) $(trash_OBJS) $(undelete_OBJS) $(volumes_OBJS)
 
 distclean: clean
 	$(RM) -- $(TARGETS)

src/plugins/project.conf

@@ -1,4 +1,4 @@
-targets=backup,cvs,dirtree,favorites,git,make,preview,properties,selection,subversion,template,trash,volumes
+targets=backup,cvs,dirtree,favorites,git,make,preview,properties,selection,subversion,template,trash,undelete,volumes
 cppflags_force=-I ../../include
 cppflags=
 cflags_force=-W `pkg-config --cflags libDesktop`
@@ -101,6 +101,13 @@ install=$(LIBDIR)/Browser/plugins
 [trash.c]
 depends=../../include/Browser.h
 
+[undelete]
+type=plugin
+sources=undelete.c
+
+[undelete.c]
+depends=../../include/Browser.h
+
 [volumes]
 type=plugin
 sources=volumes.c

src/plugins/undelete.c

@@ -0,0 +1,203 @@
+/* $Id$ */
+/* Copyright (c) 2015 Pierre Pronchery <khorben@defora.org> */
+/* This file is part of DeforaOS Desktop Browser */
+/* 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, version 3 of the License.
+ *
+ * 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 <http://www.gnu.org/licenses/>. */
+
+
+
+#include <fcntl.h>
+#include <dirent.h>
+#include <unistd.h>
+#include <string.h>
+#include <System.h>
+#include <libintl.h>
+#include "Browser.h"
+#define _(string) gettext(string)
+#define N_(string) (string)
+
+
+/* Undelete */
+/* private */
+/* types */
+enum _UndeleteColumn
+{
+	UC_ICON,
+	UC_FILENAME
+};
+#define UC_LAST UC_FILENAME
+#define UC_COUNT (UC_LAST + 1)
+
+typedef struct _BrowserPlugin
+{
+	BrowserPluginHelper * helper;
+
+	guint source;
+
+	/* refresh */
+	char * selection;
+	int fd;
+
+	/* widgets */
+	GtkWidget * window;
+	GtkListStore * store;
+	GtkWidget * view;
+} Undelete;
+
+
+/* prototypes */
+/* plug-in */
+static Undelete * _undelete_init(BrowserPluginHelper * helper);
+static void _undelete_destroy(Undelete * undelete);
+static GtkWidget * _undelete_get_widget(Undelete * undelete);
+static void _undelete_refresh(Undelete * undelete, GList * selection);
+
+/* callbacks */
+static gboolean _undelete_on_idle(gpointer data);
+
+
+/* public */
+/* variables */
+BrowserPluginDefinition plugin =
+{
+	N_("Undelete"),
+	"image-missing",
+	NULL,
+	_undelete_init,
+	_undelete_destroy,
+	_undelete_get_widget,
+	_undelete_refresh
+};
+
+
+/* private */
+/* functions */
+/* undelete_init */
+static Undelete * _undelete_init(BrowserPluginHelper * helper)
+{
+	Undelete * undelete;
+	GtkCellRenderer * renderer;
+	GtkTreeViewColumn * column;
+
+	if((undelete = object_new(sizeof(*undelete))) == NULL)
+		return NULL;
+	undelete->helper = helper;
+	undelete->source = 0;
+	undelete->selection = NULL;
+	undelete->fd = -1;
+	undelete->window = gtk_scrolled_window_new(NULL, NULL);
+	gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(undelete->window),
+			GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
+	undelete->store = gtk_list_store_new(UC_COUNT,
+			GDK_TYPE_PIXBUF,	/* UC_ICON */
+			G_TYPE_STRING);		/* UC_FILENAME */
+	undelete->view = gtk_tree_view_new_with_model(GTK_TREE_MODEL(
+				undelete->store));
+	gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(undelete->view), TRUE);
+	/* icon */
+	renderer = gtk_cell_renderer_pixbuf_new();
+	column = gtk_tree_view_column_new_with_attributes(NULL, renderer,
+			"pixbuf", UC_ICON, NULL);
+	gtk_tree_view_append_column(GTK_TREE_VIEW(undelete->view), column);
+	/* filename */
+	renderer = gtk_cell_renderer_text_new();
+	column = gtk_tree_view_column_new_with_attributes(_("Filename"),
+			renderer, "text", UC_FILENAME, NULL);
+	gtk_tree_view_append_column(GTK_TREE_VIEW(undelete->view), column);
+	gtk_container_add(GTK_CONTAINER(undelete->window), undelete->view);
+	gtk_widget_show_all(undelete->window);
+	return undelete;
+}
+
+
+/* undelete_destroy */
+static void _undelete_destroy(Undelete * undelete)
+{
+	if(undelete->source != 0)
+		g_source_remove(undelete->source);
+	if(undelete->fd >= 0)
+		close(undelete->fd);
+	string_delete(undelete->selection);
+	object_delete(undelete);
+}
+
+
+/* undelete_get_widget */
+static GtkWidget * _undelete_get_widget(Undelete * undelete)
+{
+	return undelete->window;
+}
+
+
+/* undelete_refresh */
+static void _undelete_refresh(Undelete * undelete, GList * selection)
+{
+	if(undelete->source != 0)
+		g_source_remove(undelete->source);
+	if(undelete->fd >= 0)
+		close(undelete->fd);
+	undelete->fd = -1;
+	string_delete(undelete->selection);
+	undelete->selection = NULL;
+	if(selection == NULL
+			|| selection->data == NULL
+			|| (undelete->selection = string_new(selection->data))
+			== NULL)
+		undelete->source = 0;
+	else
+		undelete->source = g_idle_add(_undelete_on_idle, undelete);
+}
+
+
+/* callbacks */
+/* undelete_on_idle */
+static gboolean _undelete_on_idle(gpointer data)
+{
+	Undelete * undelete = data;
+	char buf[65536];
+	int i;
+	int j;
+	struct dirent de;
+
+	if(undelete->fd < 0)
+	{
+		if((undelete->fd = open(undelete->selection, O_RDONLY)) < 0)
+		{
+			undelete->helper->error(undelete->helper->browser,
+					undelete->selection, 1);
+			undelete->source = 0;
+			return FALSE;
+		}
+		return TRUE;
+	}
+	if((i = getdents(undelete->fd, buf, sizeof(buf))) < 0)
+		undelete->helper->error(undelete->helper->browser,
+				undelete->selection, 1);
+	else if(i > 0)
+	{
+		for(j = 0; j + (int)sizeof(de) < i; j += de.d_reclen)
+		{
+			memcpy(&de, &buf[j], sizeof(de));
+			if(strncmp(de.d_name, ".", 1) == 0 && de.d_namlen == 1)
+				continue;
+			if(strncmp(de.d_name, "..", 2) == 0 && de.d_namlen == 2)
+				continue;
+			/* FIXME implement */
+		}
+		return TRUE;
+	}
+	close(undelete->fd);
+	string_delete(undelete->selection);
+	undelete->selection = NULL;
+	undelete->source = 0;
+	return FALSE;
+}