1 files changed, 475 insertions, 0 deletions

diff --git a/filter/rule-editor.c b/filter/rule-editor.c
new file mode 100644
index 0000000000..dbe8a5d117
--- /dev/null
+++ b/filter/rule-editor.c
@@ -0,0 +1,475 @@
+/*
+ *  Copyright (C) 2000 Helix Code Inc.
+ *
+ *  Authors: Not Zed <notzed@lostzed.mmc.com.au>
+ *           Jeffrey Stedfast <fejj@helixcode.com>
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Library 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 Library General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Library General Public
+ *  License along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <config.h>
+#include <gnome.h>
+#include <glade/glade.h>
+
+#include <gal/widgets/e-unicode.h>
+#include "rule-editor.h"
+#include "rule-context.h"
+#include "filter-rule.h"
+
+#define d(x)
+
+static void set_source(RuleEditor *re, const char *source);
+static void set_sensitive(RuleEditor *re);
+static FilterRule *create_rule(RuleEditor *re);
+
+static void rule_editor_class_init(RuleEditorClass *class);
+static void rule_editor_init(RuleEditor *gspaper);
+static void rule_editor_finalise(GtkObject *obj);
+
+#define _PRIVATE(x)(((RuleEditor *)(x))->priv)
+
+enum {
+	BUTTON_ADD,
+	BUTTON_EDIT,
+	BUTTON_DELETE,
+	BUTTON_UP,
+	BUTTON_DOWN,
+	BUTTON_LAST
+};
+
+struct _RuleEditorPrivate {
+	GtkButton *buttons[BUTTON_LAST];
+};
+
+static GnomeDialogClass *parent_class;
+
+enum {
+	LAST_SIGNAL
+};
+
+static guint signals[LAST_SIGNAL] = { 0 };
+
+guint
+rule_editor_get_type(void)
+{
+	static guint type = 0;
+	
+	if(!type) {
+		GtkTypeInfo type_info = {
+			"RuleEditor",
+			sizeof(RuleEditor),
+			sizeof(RuleEditorClass),
+			(GtkClassInitFunc)rule_editor_class_init,
+			(GtkObjectInitFunc)rule_editor_init,
+			(GtkArgSetFunc)NULL,
+			(GtkArgGetFunc)NULL
+		};
+		
+		type = gtk_type_unique(gnome_dialog_get_type(), &type_info);
+	}
+	
+	return type;
+}
+
+static void
+rule_editor_class_init(RuleEditorClass *class)
+{
+	GtkObjectClass *object_class;
+	
+	object_class = (GtkObjectClass *)class;
+	parent_class = gtk_type_class(gnome_dialog_get_type());
+	
+	object_class->finalize = rule_editor_finalise;
+
+	/* override methods */
+	class->set_source = set_source;
+	class->set_sensitive = set_sensitive;
+	class->create_rule = create_rule;
+
+	/* signals */
+	
+	gtk_object_class_add_signals(object_class, signals, LAST_SIGNAL);
+}
+
+static void
+rule_editor_init(RuleEditor *o)
+{
+	o->priv = g_malloc0(sizeof(*o->priv));
+}
+
+static void
+rule_editor_finalise(GtkObject *obj)
+{
+	RuleEditor *o = (RuleEditor *)obj;
+
+	gtk_object_unref((GtkObject *)o->context);
+
+	g_free(o->priv);
+
+       ((GtkObjectClass *)(parent_class))->finalize(obj);
+}
+
+/**
+ * rule_editor_new:
+ *
+ * Create a new RuleEditor object.
+ * 
+ * Return value: A new #RuleEditor object.
+ **/
+RuleEditor *
+rule_editor_new(RuleContext *f, const char *source)
+{
+	GladeXML *gui;
+	RuleEditor *o = (RuleEditor *)gtk_type_new(rule_editor_get_type());
+	GtkWidget *w;
+
+	gui = glade_xml_new(FILTER_GLADEDIR "/filter.glade", "rule_editor");
+	rule_editor_construct(o, f, gui, source);
+
+        w = glade_xml_get_widget(gui, "rule_frame");
+	gtk_frame_set_label((GtkFrame *)w, _("Rules"));
+
+	gtk_object_unref((GtkObject *)gui);
+
+	return o;
+}
+
+/* used internally by implementations if required */
+void
+rule_editor_set_sensitive(RuleEditor *re)
+{
+	return ((RuleEditorClass *)((GtkObject *)re)->klass)->set_sensitive(re);
+}
+
+/* used internally by implementations */
+void
+rule_editor_set_source(RuleEditor *re, const char *source)
+{
+	return ((RuleEditorClass *)((GtkObject *)re)->klass)->set_source(re, source);
+}
+
+/* factory method for "add" button */
+FilterRule *
+rule_editor_create_rule(RuleEditor *re)
+{
+	return ((RuleEditorClass *)((GtkObject *)re)->klass)->create_rule(re);
+}
+
+static FilterRule *
+create_rule(RuleEditor *re)
+{
+	FilterRule *rule = filter_rule_new();
+	FilterPart *part;
+
+	/* create a rule with 1 part in it */
+	part = rule_context_next_part(re->context, NULL);
+	filter_rule_add_part(rule, filter_part_clone(part));
+
+	return rule;
+}
+
+static void
+add_editor_clicked(GtkWidget *widget, int button, RuleEditor *re)
+{
+	GtkWidget *item;
+	GList *l = NULL;
+	char *s;
+
+	switch (button) {
+	case 0:
+		if (!filter_rule_validate(re->edit)) {
+			/* FIXME: popup an error or somelthing? */
+			return;
+		}
+
+		gtk_object_ref((GtkObject *)re->edit);
+		s = e_utf8_to_gtk_string(GTK_WIDGET(re->list), re->edit->name);
+		item = gtk_list_item_new_with_label(s);
+		g_free(s);
+		
+		gtk_object_set_data(GTK_OBJECT(item), "rule", re->edit);
+		gtk_widget_show(item);
+		
+		l = g_list_append(l, GTK_LIST_ITEM(item));
+		
+		gtk_list_append_items(re->list, l);
+		gtk_list_select_child(re->list, item);
+		
+		re->current = re->edit;
+		rule_context_add_rule(re->context, re->current);
+
+		rule_editor_set_sensitive(re);
+	case 1:
+	default:
+		gnome_dialog_close((GnomeDialog *)widget);
+	case -1:
+		gtk_object_unref((GtkObject *)re->edit);
+		re->edit = FALSE;
+		gtk_widget_set_sensitive((GtkWidget *)re, TRUE);
+	}
+}
+
+static void
+rule_add(GtkWidget *widget, RuleEditor *re)
+{
+	GtkWidget *gd;
+	GtkWidget *w;
+	
+	d(printf("add rule\n"));
+
+	if (re->edit != NULL)
+		return;
+
+	re->edit = rule_editor_create_rule(re);
+	filter_rule_set_source(re->edit, re->source);
+	w = filter_rule_get_widget(re->edit, re->context);
+
+	gd = gnome_dialog_new(_("Add Rule"),
+			       GNOME_STOCK_BUTTON_OK,
+			       GNOME_STOCK_BUTTON_CANCEL,
+			       NULL);
+	gtk_window_set_policy(GTK_WINDOW(gd), FALSE, TRUE, FALSE);
+	gtk_box_pack_start(GTK_BOX(GNOME_DIALOG(gd)->vbox), w, TRUE, TRUE, 0);
+	gtk_signal_connect((GtkObject *)gd, "clicked", add_editor_clicked, re);
+
+	gtk_widget_set_sensitive((GtkWidget *)re, FALSE);
+
+	gtk_widget_show(gd);
+}
+
+static void
+edit_editor_clicked(GtkWidget *widget, int button, RuleEditor *re)
+{
+	GtkWidget *item;
+	char *s;
+	int pos;
+
+	switch (button) {
+	case 0:
+		if (!filter_rule_validate(re->edit)) {
+			/* FIXME: popup an error or somelthing? */
+			return;
+		}
+
+		pos = rule_context_get_rank_rule(re->context, re->current, re->source);
+		if(pos != -1) {
+			item = g_list_nth_data(((GtkList *)re->list)->children, pos);
+			s = e_utf8_to_gtk_string(GTK_WIDGET(item), re->current->name);
+			gtk_label_set_text(GTK_LABEL(GTK_BIN(item)->child), s);
+			g_free(s);
+		}
+	case 1:
+	default:
+		gnome_dialog_close((GnomeDialog *)widget);
+	case -1:
+		gtk_object_unref((GtkObject *)re->edit);
+		re->edit = FALSE;
+		gtk_widget_set_sensitive((GtkWidget *)re, TRUE);
+	}
+}
+
+static void
+rule_edit(GtkWidget *widget, RuleEditor *re)
+{
+	GtkWidget *w;
+	GtkWidget *gd;
+
+	if (re->edit != NULL || re->current == NULL)
+		return;
+
+	re->edit = re->current;
+	w = filter_rule_get_widget(re->current, re->context);
+	gd = gnome_dialog_new(_("Edit Rule"),
+			       GNOME_STOCK_BUTTON_OK,
+			       GNOME_STOCK_BUTTON_CANCEL,
+			       NULL);
+	gtk_window_set_policy(GTK_WINDOW(gd), FALSE, TRUE, FALSE);
+	gtk_box_pack_start(GTK_BOX(GNOME_DIALOG(gd)->vbox), w, TRUE, TRUE, 0);
+	gtk_signal_connect((GtkObject *)gd, "clicked", edit_editor_clicked, re);
+
+	gtk_widget_set_sensitive((GtkWidget *)re, FALSE);
+	
+	gtk_widget_show(gd);
+}
+
+static void
+rule_delete(GtkWidget *widget, RuleEditor *re)
+{
+	int pos;
+	GList *l;
+	GtkListItem *item;
+	
+	d(printf("delete rule\n"));
+	pos = rule_context_get_rank_rule(re->context, re->current, re->source);
+	if(pos != -1) {
+		rule_context_remove_rule(re->context, re->current);
+		
+		item = g_list_nth_data(((GtkList *)re->list)->children, pos);
+		l = g_list_append(NULL, item);
+		gtk_list_remove_items(re->list, l);
+		g_list_free(l);
+		
+		gtk_object_unref(GTK_OBJECT(re->current));
+		re->current = NULL;
+	}
+	
+	rule_editor_set_sensitive(re);
+}
+
+static void
+rule_move(RuleEditor *re, int from, int to)
+{
+	GList *l;
+	GtkListItem *item;
+	
+	d(printf("moving %d to %d\n", from, to));
+	rule_context_rank_rule(re->context, re->current, to);
+	
+	item = g_list_nth_data(re->list->children, from);
+	l = g_list_append(NULL, item);
+	gtk_list_remove_items_no_unref(re->list, l);
+	gtk_list_insert_items(re->list, l, to);			      
+	gtk_list_select_child(re->list, GTK_WIDGET(item));
+
+	rule_editor_set_sensitive(re);
+}
+
+static void
+rule_up(GtkWidget *widget, RuleEditor *re)
+{
+	int pos;
+	
+	d(printf("up rule\n"));
+	pos = rule_context_get_rank_rule(re->context, re->current, re->source);
+	if(pos > 0)
+		rule_move(re, pos, pos - 1);
+}
+
+static void
+rule_down(GtkWidget *widget, RuleEditor *re)
+{
+	int pos;
+	
+	d(printf("down rule\n"));
+	pos = rule_context_get_rank_rule(re->context, re->current, re->source);
+	rule_move(re, pos, pos + 1);
+}
+
+static struct {
+	char *name;
+	GtkSignalFunc func;
+} edit_buttons[] = {
+	{ "rule_add", rule_add },
+	{ "rule_edit", rule_edit },
+	{ "rule_delete", rule_delete },
+	{ "rule_up", rule_up },
+	{ "rule_down", rule_down },
+};
+
+static void
+set_sensitive(RuleEditor *re)
+{
+	FilterRule *rule = NULL;
+	int index = -1, count = 0;
+	
+	while ((rule = rule_context_next_rule(re->context, rule, re->source))) {
+		if(rule == re->current)
+			index = count;
+		count++;
+	}
+	
+	d(printf("index = %d count=%d\n", index, count));
+	
+	count--;
+	
+	gtk_widget_set_sensitive(GTK_WIDGET(re->priv->buttons[BUTTON_EDIT]), index != -1);
+	gtk_widget_set_sensitive(GTK_WIDGET(re->priv->buttons[BUTTON_DELETE]), index != -1);
+	gtk_widget_set_sensitive(GTK_WIDGET(re->priv->buttons[BUTTON_UP]), index > 0);
+	gtk_widget_set_sensitive(GTK_WIDGET(re->priv->buttons[BUTTON_DOWN]), index >= 0 && index < count);
+}
+
+
+static void
+select_rule(GtkWidget *w, GtkWidget *child, RuleEditor *re)
+{
+	re->current = gtk_object_get_data(GTK_OBJECT(child), "rule");
+
+	g_assert(re->current);
+	
+	rule_editor_set_sensitive(re);
+}
+
+static void
+double_click(GtkWidget *widget, GdkEventButton *event, RuleEditor *re)
+{
+	if(re->current && event->type == GDK_2BUTTON_PRESS)
+		rule_edit(widget, re);
+}
+
+static void
+set_source(RuleEditor *re, const char *source)
+{
+	FilterRule *rule = NULL;
+	GList *newitems = NULL;
+	
+	gtk_list_clear_items(GTK_LIST(re->list), 0, -1);
+	
+	d(printf("Checking for rules that are of type %s\n", source));
+	while ((rule = rule_context_next_rule(re->context, rule, source)) != NULL) {
+		GtkWidget *item;
+		char *s;
+		
+		d(printf("   hit %s(%d)\n", rule->name, source));
+		s = e_utf8_to_gtk_string(GTK_WIDGET(re->list), rule->name);
+		item = gtk_list_item_new_with_label(s);
+		g_free(s);
+		gtk_object_set_data(GTK_OBJECT(item), "rule", rule);
+		gtk_widget_show(GTK_WIDGET(item));
+		newitems = g_list_append(newitems, item);
+	}
+	
+	gtk_list_append_items(re->list, newitems);
+	g_free(re->source);
+	re->source = g_strdup(source);
+	re->current = NULL;
+	rule_editor_set_sensitive(re);
+}
+
+void
+rule_editor_construct(RuleEditor *re, RuleContext *context, GladeXML *gui, const char *source)
+{
+	GtkWidget *w;
+	int i;
+
+	re->context = context;
+	gtk_object_ref((GtkObject *)context);
+
+        w = glade_xml_get_widget(gui, "rule_editor");
+	gtk_box_pack_start((GtkBox *)GNOME_DIALOG(re)->vbox, w, TRUE, TRUE, 0);
+	
+	for (i=0; i<BUTTON_LAST; i++) {
+		re->priv->buttons[i] = (GtkButton *)w = glade_xml_get_widget(gui, edit_buttons[i].name);
+		gtk_signal_connect(GTK_OBJECT(w), "clicked", edit_buttons[i].func, re);
+	}
+
+        re->list = (GtkList *) w = glade_xml_get_widget(gui, "rule_list");
+	gtk_signal_connect(GTK_OBJECT(w), "select_child", select_rule, re);
+	gtk_signal_connect(GTK_OBJECT(w), "button_press_event", double_click, re);
+
+	rule_editor_set_source(re, source);
+
+	gnome_dialog_append_buttons((GnomeDialog *)re, GNOME_STOCK_BUTTON_OK, GNOME_STOCK_BUTTON_CANCEL, 0);
+}
+