1 files changed, 527 insertions, 0 deletions

diff --git a/src/nautilus-desktop-item-properties.c b/src/nautilus-desktop-item-properties.c
new file mode 100644
index 000000000..aebd272b3
--- /dev/null
+++ b/src/nautilus-desktop-item-properties.c
@@ -0,0 +1,527 @@
+/*
+ *  fm-ditem-page.c: Desktop item editing support
+ * 
+ *  Copyright (C) 2004 James Willcox
+ *
+ *  This library 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 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 General Public
+ *  License along with this library; if not, write to the Free
+ *  Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *  Authors: James Willcox <jwillcox@gnome.org>
+ *
+ */
+
+#include <config.h>
+
+#include "nautilus-desktop-item-properties.h"
+
+#include <string.h>
+
+#include <eel/eel-glib-extensions.h>
+#include <gtk/gtk.h>
+#include <glib/gi18n.h>
+#include <libnautilus-extension/nautilus-extension-types.h>
+#include <libnautilus-extension/nautilus-file-info.h>
+#include <libnautilus-private/nautilus-file.h>
+#include <libnautilus-private/nautilus-file-attributes.h>
+
+#define MAIN_GROUP "Desktop Entry"
+
+typedef struct ItemEntry {
+	const char *field;
+	const char *description;
+	char *current_value;
+	gboolean localized;
+	gboolean filename;
+} ItemEntry;
+
+enum {
+	TARGET_URI_LIST
+};
+
+static const GtkTargetEntry target_table[] = {
+        { "text/uri-list",  0, TARGET_URI_LIST }
+};
+
+static gboolean
+_g_key_file_load_from_gfile (GKeyFile *key_file,
+			     GFile *file,
+			     GKeyFileFlags flags,
+			     GError **error)
+{
+	char *data;
+	gsize len;
+	gboolean res;
+	
+	if (!g_file_load_contents (file, NULL, &data, &len, NULL, error)) {
+		return FALSE;
+	}
+
+	res = g_key_file_load_from_data (key_file, data, len, flags, error);
+	
+	g_free (data);
+	
+	return res;
+}
+
+static gboolean
+_g_key_file_save_to_uri (GKeyFile *key_file,
+			 const char *uri,
+			 GError  **error)
+{
+	GFile *file;
+	char *data;
+	gsize len;
+
+	data = g_key_file_to_data (key_file, &len, error);
+	if (data == NULL) {
+		return FALSE;
+	}
+	file = g_file_new_for_uri (uri);
+	if (!g_file_replace_contents (file,
+				      data, len,
+				      NULL, FALSE,
+				      G_FILE_CREATE_NONE,
+				      NULL, NULL, error)) {
+		g_object_unref (file);
+		g_free (data);
+		return FALSE;
+	}
+	g_object_unref (file);
+	g_free (data);
+	return TRUE;
+}
+
+static GKeyFile *
+_g_key_file_new_from_file (GFile *file,
+			   GKeyFileFlags flags,
+			   GError **error)
+{
+	GKeyFile *key_file;
+	
+	key_file = g_key_file_new ();
+	if (!_g_key_file_load_from_gfile (key_file, file, flags, error)) {
+		g_key_file_free (key_file);
+		key_file = NULL;
+	}
+	return key_file;
+}
+
+static GKeyFile *
+_g_key_file_new_from_uri (const char *uri,
+			  GKeyFileFlags flags,
+			  GError **error)
+{
+	GKeyFile *key_file;
+	GFile *file;
+	
+	file = g_file_new_for_uri (uri);
+	key_file = _g_key_file_new_from_file (file, flags, error);
+	g_object_unref (file);
+	return key_file;
+}
+
+static ItemEntry *
+item_entry_new (const char *field,
+		const char *description,
+		gboolean localized,
+		gboolean filename)
+{
+	ItemEntry *entry;
+
+	entry = g_new0 (ItemEntry, 1);
+	entry->field = field;
+	entry->description = description;
+	entry->localized = localized;
+	entry->filename = filename;
+	
+	return entry;
+}
+
+static void
+item_entry_free (ItemEntry *entry)
+{
+	g_free (entry->current_value);
+	g_free (entry);
+}
+
+static void
+fm_ditem_page_url_drag_data_received (GtkWidget *widget, GdkDragContext *context,
+				      int x, int y,
+				      GtkSelectionData *selection_data,
+				      guint info, guint time,
+				      GtkEntry *entry)
+{
+	char **uris;
+	gboolean exactly_one;
+	char *path;
+	
+	uris = g_strsplit (gtk_selection_data_get_data (selection_data), "\r\n", 0);
+        exactly_one = uris[0] != NULL && (uris[1] == NULL || uris[1][0] == '\0');
+
+	if (!exactly_one) {
+		g_strfreev (uris);
+		return;
+	}
+
+	path = g_filename_from_uri (uris[0], NULL, NULL);
+	if (path != NULL) {
+		gtk_entry_set_text (entry, path);
+		g_free (path);
+	} else {
+		gtk_entry_set_text (entry, uris[0]);
+	}
+	
+	g_strfreev (uris);
+}
+
+static void
+fm_ditem_page_exec_drag_data_received (GtkWidget *widget, GdkDragContext *context,
+				       int x, int y,
+				       GtkSelectionData *selection_data,
+				       guint info, guint time,
+				       GtkEntry *entry)
+{
+	char **uris;
+	gboolean exactly_one;
+	NautilusFile *file;
+	GKeyFile *key_file;
+	char *uri, *type, *exec;
+	
+	uris = g_strsplit (gtk_selection_data_get_data (selection_data), "\r\n", 0);
+        exactly_one = uris[0] != NULL && (uris[1] == NULL || uris[1][0] == '\0');
+
+	if (!exactly_one) {
+		g_strfreev (uris);
+		return;
+	}
+
+	file = nautilus_file_get_by_uri (uris[0]);
+
+	g_return_if_fail (file != NULL);
+	
+	uri = nautilus_file_get_uri (file);
+	if (nautilus_file_is_mime_type (file, "application/x-desktop")) {
+		key_file = _g_key_file_new_from_uri (uri, G_KEY_FILE_NONE, NULL);
+		if (key_file != NULL) {
+			type = g_key_file_get_string (key_file, MAIN_GROUP, "Type", NULL);
+			if (type != NULL && strcmp (type, "Application") == 0) {
+				exec = g_key_file_get_string (key_file, MAIN_GROUP, "Exec", NULL);
+				if (exec != NULL) {
+					g_free (uri);
+					uri = exec;
+				}
+			}
+			g_free (type);
+			g_key_file_free (key_file);
+		}
+	} 
+	gtk_entry_set_text (entry,
+			    uri?uri:"");
+	gtk_widget_grab_focus (GTK_WIDGET (entry));
+	
+	g_free (uri);
+	
+	nautilus_file_unref (file);
+	
+	g_strfreev (uris);
+}
+
+static void
+save_entry (GtkEntry *entry, GKeyFile *key_file, const char *uri)
+{
+	GError *error;
+	ItemEntry *item_entry;
+	const char *val;
+	gchar **languages;
+
+	item_entry = g_object_get_data (G_OBJECT (entry), "item_entry");
+	val = gtk_entry_get_text (entry);
+
+	if (strcmp (val, item_entry->current_value) == 0) {
+		return; /* No actual change, don't update file */
+	}
+
+	g_free (item_entry->current_value);
+	item_entry->current_value = g_strdup (val);
+	
+	if (item_entry->localized) {
+		languages = (gchar **) g_get_language_names ();
+		g_key_file_set_locale_string (key_file, MAIN_GROUP, item_entry->field, languages[0], val);
+	} else {
+		g_key_file_set_string (key_file, MAIN_GROUP, item_entry->field, val);
+	}
+
+	error = NULL;
+
+	if (!_g_key_file_save_to_uri (key_file, uri, &error)) {
+		g_warning ("%s", error->message);
+		g_error_free (error);
+	}
+}
+
+static void
+entry_activate_cb (GtkWidget *entry,
+		   GtkWidget *container)
+{
+	const char *uri;
+	GKeyFile *key_file;
+	
+	uri = g_object_get_data (G_OBJECT (container), "uri");
+	key_file = g_object_get_data (G_OBJECT (container), "keyfile");
+	save_entry (GTK_ENTRY (entry), key_file, uri);
+}
+
+static gboolean
+entry_focus_out_cb (GtkWidget *entry,
+		    GdkEventFocus *event,
+		    GtkWidget *container)
+{
+	const char *uri;
+	GKeyFile *key_file;
+	
+	uri = g_object_get_data (G_OBJECT (container), "uri");
+	key_file = g_object_get_data (G_OBJECT (container), "keyfile");
+	save_entry (GTK_ENTRY (entry), key_file, uri);
+	return FALSE;
+}
+
+static GtkWidget *
+build_table (GtkWidget *container,
+	     GKeyFile *key_file,
+	     GtkSizeGroup *label_size_group,
+	     GList *entries)
+{
+	GtkWidget *table;
+	GtkWidget *label;
+	GtkWidget *entry;
+	GList *l;
+	char *val;
+	int i;
+	
+	table = gtk_table_new (g_list_length (entries) + 1, 2, FALSE);
+	gtk_table_set_row_spacings (GTK_TABLE (table), 6);
+	gtk_table_set_col_spacings (GTK_TABLE (table), 12);
+	i = 0;
+	
+	for (l = entries; l; l = l->next) {
+		ItemEntry *item_entry = (ItemEntry *)l->data;
+		char *label_text;
+
+		label_text = g_strdup_printf ("%s:", item_entry->description);
+		label = gtk_label_new (label_text);
+		gtk_label_set_use_markup (GTK_LABEL (label), TRUE);
+		g_free (label_text);
+		gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
+		gtk_size_group_add_widget (label_size_group, label);
+
+		entry = gtk_entry_new ();
+
+		if (item_entry->localized) {
+			val = g_key_file_get_locale_string (key_file,
+							    MAIN_GROUP,
+							    item_entry->field,
+							    NULL, NULL);
+		} else {
+			val = g_key_file_get_string (key_file,
+						     MAIN_GROUP,
+						     item_entry->field,
+						     NULL);
+		}
+		
+		item_entry->current_value = g_strdup (val?val:"");
+		gtk_entry_set_text (GTK_ENTRY (entry), item_entry->current_value);
+		g_free (val);
+
+		gtk_table_attach (GTK_TABLE (table), label,
+				  0, 1, i, i+1, GTK_FILL, GTK_FILL,
+				  0, 0);
+		gtk_table_attach (GTK_TABLE (table), entry,
+				  1, 2, i, i+1, GTK_EXPAND|GTK_FILL, GTK_EXPAND|GTK_FILL,
+				  0, 0);
+		g_signal_connect (entry, "activate",
+				  G_CALLBACK (entry_activate_cb),
+				  container);
+		g_signal_connect (entry, "focus_out_event",
+				  G_CALLBACK (entry_focus_out_cb),
+				  container);
+		
+		g_object_set_data_full (G_OBJECT (entry), "item_entry", item_entry,
+					(GDestroyNotify)item_entry_free);
+
+		if (item_entry->filename) {
+			gtk_drag_dest_set (GTK_WIDGET (entry),
+					   GTK_DEST_DEFAULT_MOTION | GTK_DEST_DEFAULT_HIGHLIGHT | GTK_DEST_DEFAULT_DROP,
+					   target_table, G_N_ELEMENTS (target_table),
+					   GDK_ACTION_COPY | GDK_ACTION_MOVE);
+			
+			g_signal_connect (entry, "drag_data_received",
+					  G_CALLBACK (fm_ditem_page_url_drag_data_received),
+					  entry);
+		} else if (strcmp (item_entry->field, "Exec") == 0) {
+			gtk_drag_dest_set (GTK_WIDGET (entry),
+					   GTK_DEST_DEFAULT_MOTION | GTK_DEST_DEFAULT_HIGHLIGHT | GTK_DEST_DEFAULT_DROP,
+					   target_table, G_N_ELEMENTS (target_table),
+					   GDK_ACTION_COPY | GDK_ACTION_MOVE);
+			
+			g_signal_connect (entry, "drag_data_received",
+					  G_CALLBACK (fm_ditem_page_exec_drag_data_received),
+					  entry);
+		}
+		
+		i++;
+	}
+
+	/* append dummy row */
+	label = gtk_label_new ("");
+	gtk_table_attach (GTK_TABLE (table), label,
+			  0, 1, i, i+1, GTK_FILL, GTK_FILL,
+			  0, 0);
+	gtk_size_group_add_widget (label_size_group, label);
+
+
+	gtk_widget_show_all (table);
+	return table;
+}
+
+static void
+create_page (GKeyFile *key_file, GtkWidget *box)
+{
+	GtkWidget *table;
+	GList *entries;
+	GtkSizeGroup *label_size_group;
+	char *type;
+	
+	entries = NULL;
+
+	type = g_key_file_get_string (key_file, MAIN_GROUP, "Type", NULL);
+	
+	if (g_strcmp0 (type, "Link") == 0) {
+		entries = g_list_prepend (entries,
+					  item_entry_new ("Comment",
+							  _("Comment"), TRUE, FALSE));
+		entries = g_list_prepend (entries,
+					  item_entry_new ("URL",
+							  _("URL"), FALSE, TRUE));
+		entries = g_list_prepend (entries,
+					  item_entry_new ("GenericName",
+							  _("Description"), TRUE, FALSE));
+	} else if (g_strcmp0 (type, "Application") == 0) {
+		entries = g_list_prepend (entries,
+					  item_entry_new ("Comment",
+							  _("Comment"), TRUE, FALSE));
+		entries = g_list_prepend (entries,
+					  item_entry_new ("Exec", 
+							  _("Command"), FALSE, FALSE));
+		entries = g_list_prepend (entries,
+					  item_entry_new ("GenericName",
+							  _("Description"), TRUE, FALSE));
+	} else {
+		/* we only handle launchers and links */
+
+		/* ensure that we build an empty table with a dummy row at the end */
+		goto build_table;
+	}
+	g_free (type);
+
+build_table:
+	label_size_group = g_object_get_data (G_OBJECT (box), "label-size-group");
+
+	table = build_table (box, key_file, label_size_group, entries);
+	g_list_free (entries);
+	
+	gtk_box_pack_start (GTK_BOX (box), table, FALSE, TRUE, 0);
+	gtk_widget_show_all (GTK_WIDGET (box));
+}
+
+
+static void
+ditem_read_cb (GObject *source_object,
+	       GAsyncResult *res,
+	       gpointer user_data)
+{
+	GKeyFile *key_file;
+	GtkWidget *box;
+	gsize file_size;
+	char *file_contents;
+
+	box = GTK_WIDGET (user_data);
+	
+	if (g_file_load_contents_finish (G_FILE (source_object),
+					 res,
+					 &file_contents, &file_size,
+					 NULL, NULL)) {
+		key_file = g_key_file_new ();
+		g_object_set_data_full (G_OBJECT (box), "keyfile", key_file, (GDestroyNotify)g_key_file_free);
+		if (g_key_file_load_from_data (key_file, file_contents, file_size, 0, NULL)) {
+			create_page (key_file, box);
+		}
+		g_free (file_contents);
+		
+	}
+	g_object_unref (box);
+}
+
+static void
+fm_ditem_page_create_begin (const char *uri,
+			    GtkWidget *box)
+{
+	GFile *location;
+
+	location = g_file_new_for_uri (uri);
+	g_object_set_data_full (G_OBJECT (box), "uri", g_strdup (uri), g_free);
+	g_file_load_contents_async (location, NULL, ditem_read_cb, g_object_ref (box));
+	g_object_unref (location);
+}
+
+GtkWidget *
+fm_ditem_page_make_box (GtkSizeGroup *label_size_group,
+			GList *files)
+{
+	NautilusFileInfo *info;
+	char *uri;
+	GtkWidget *box;
+
+	g_assert (fm_ditem_page_should_show (files));
+
+	box = gtk_vbox_new (FALSE, 6);
+	g_object_set_data_full (G_OBJECT (box), "label-size-group",
+				label_size_group, (GDestroyNotify) g_object_unref);
+
+	info = NAUTILUS_FILE_INFO (files->data);
+
+	uri = nautilus_file_info_get_uri (info);
+	fm_ditem_page_create_begin (uri, box);
+	g_free (uri);
+
+	return box;
+}
+
+gboolean
+fm_ditem_page_should_show (GList *files)
+{
+	NautilusFileInfo *info;
+
+	if (!files || files->next) {
+		return FALSE;
+	}
+
+	info = NAUTILUS_FILE_INFO (files->data);
+
+	if (!nautilus_file_info_is_mime_type (info, "application/x-desktop")) {
+		return FALSE;
+	}
+
+	return TRUE;
+}
+