/*
* 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 <gtk/gtk.h>
#include <gnome.h>
#include <gnome-xml/xmlmemory.h>
#include <gal/widgets/e-unicode.h>
#include "filter-rule.h"
#include "filter-context.h"
#define d(x)
static xmlNodePtr xml_encode(FilterRule *);
static int xml_decode(FilterRule *, xmlNodePtr, RuleContext *);
static void build_code(FilterRule *, GString * out);
static GtkWidget *get_widget(FilterRule * fr, struct _RuleContext *f);
static void filter_rule_class_init(FilterRuleClass * class);
static void filter_rule_init(FilterRule * gspaper);
static void filter_rule_finalise(GtkObject * obj);
#define _PRIVATE(x) (((FilterRule *)(x))->priv)
struct _FilterRulePrivate {
GtkWidget *parts; /* where the parts are stored */
};
static GtkObjectClass *parent_class;
enum {
LAST_SIGNAL
};
static guint signals[LAST_SIGNAL] = { 0 };
guint filter_rule_get_type(void)
{
static guint type = 0;
if (!type) {
GtkTypeInfo type_info = {
"FilterRule",
sizeof(FilterRule),
sizeof(FilterRuleClass),
(GtkClassInitFunc) filter_rule_class_init,
(GtkObjectInitFunc) filter_rule_init,
(GtkArgSetFunc) NULL,
(GtkArgGetFunc) NULL
};
type = gtk_type_unique(gtk_object_get_type(), &type_info);
}
return type;
}
static void
filter_rule_class_init(FilterRuleClass * class)
{
GtkObjectClass *object_class;
object_class = (GtkObjectClass *) class;
parent_class = gtk_type_class(gtk_object_get_type());
object_class->finalize = filter_rule_finalise;
/* override methods */
class->xml_encode = xml_encode;
class->xml_decode = xml_decode;
class->build_code = build_code;
class->get_widget = get_widget;
/* signals */
gtk_object_class_add_signals(object_class, signals, LAST_SIGNAL);
}
static void
filter_rule_init(FilterRule * o)
{
o->priv = g_malloc0(sizeof(*o->priv));
}
static void
unref_list(GList * l)
{
while (l) {
gtk_object_unref(GTK_OBJECT(l->data));
l = g_list_next(l);
}
}
static void
filter_rule_finalise(GtkObject * obj)
{
FilterRule *o = (FilterRule *) obj;
g_free(o->name);
g_free(o->source);
unref_list(o->parts);
((GtkObjectClass *) (parent_class))->finalize(obj);
}
/**
* filter_rule_new:
*
* Create a new FilterRule object.
*
* Return value: A new #FilterRule object.
**/
FilterRule *
filter_rule_new(void)
{
FilterRule *o = (FilterRule *) gtk_type_new(filter_rule_get_type());
return o;
}
void
filter_rule_set_name(FilterRule * fr, const char *name)
{
g_free(fr->name);
fr->name = g_strdup(name);
}
void
filter_rule_set_source(FilterRule * fr, const char *source)
{
g_free(fr->source);
fr->source = g_strdup(source);
}
xmlNodePtr filter_rule_xml_encode(FilterRule * fr)
{
return ((FilterRuleClass *) ((GtkObject *) fr)->klass)->xml_encode(fr);
}
static xmlNodePtr
xml_encode(FilterRule * fr)
{
xmlNodePtr node, set, work;
GList *l;
node = xmlNewNode(NULL, "rule");
switch (fr->grouping) {
case FILTER_GROUP_ALL:
xmlSetProp(node, "grouping", "all");
break;
case FILTER_GROUP_ANY:
xmlSetProp(node, "grouping", "any");
break;
}
if (fr->source) {
xmlSetProp(node, "source", "incoming");
}
if (fr->name) {
work = xmlNewNode(NULL, "title");
xmlNodeSetContent(work, fr->name);
xmlAddChild(node, work);
}
set = xmlNewNode(NULL, "partset");
xmlAddChild(node, set);
l = fr->parts;
while (l) {
work = filter_part_xml_encode((FilterPart *) l->data);
xmlAddChild(set, work);
l = g_list_next(l);
}
return node;
}
static void
load_set(xmlNodePtr node, FilterRule * fr, RuleContext * f)
{
xmlNodePtr work;
char *rulename;
FilterPart *part;
work = node->childs;
while (work) {
if (!strcmp(work->name, "part")) {
rulename = xmlGetProp(work, "name");
part = rule_context_find_part(f, rulename);
if (part) {
part = filter_part_clone(part);
filter_part_xml_decode(part, work);
filter_rule_add_part(fr, part);
} else {
g_warning("cannot find rule part '%s'\n", rulename);
}
xmlFree(rulename);
} else {
g_warning("Unknwon xml node in part: %s", work->name);
}
work = work->next;
}
}
int
filter_rule_xml_decode(FilterRule * fr, xmlNodePtr node, RuleContext * f)
{
return ((FilterRuleClass *) ((GtkObject *) fr)->klass)->xml_decode(fr, node, f);
}
static int
xml_decode(FilterRule * fr, xmlNodePtr node, RuleContext * f)
{
xmlNodePtr work;
char *grouping;
char *source;
if (fr->name) {
g_free(fr->name);
fr->name = NULL;
}
grouping = xmlGetProp(node, "grouping");
if (!strcmp(grouping, "any"))
fr->grouping = FILTER_GROUP_ANY;
else
fr->grouping = FILTER_GROUP_ALL;
xmlFree(grouping);
source = xmlGetProp(node, "source");
if (source) {
fr->source = source;
}
work = node->childs;
while (work) {
if (!strcmp(work->name, "partset")) {
load_set(work, fr, f);
} else if (!strcmp(work->name, "title")) {
if (!fr->name)
fr->name = xmlNodeGetContent(work);
}
work = work->next;
}
return 0;
}
void
filter_rule_add_part(FilterRule * fr, FilterPart * fp)
{
fr->parts = g_list_append(fr->parts, fp);
}
void
filter_rule_remove_part(FilterRule * fr, FilterPart * fp)
{
fr->parts = g_list_remove(fr->parts, fp);
}
void
filter_rule_replace_part(FilterRule * fr, FilterPart * fp, FilterPart * new)
{
GList *l;
l = g_list_find(fr->parts, fp);
if (l) {
l->data = new;
} else {
fr->parts = g_list_append(fr->parts, new);
}
}
void
filter_rule_build_code(FilterRule * fr, GString * out)
{
return ((FilterRuleClass *) ((GtkObject *) fr)->klass)->build_code(fr, out);
}
static void
build_code(FilterRule * fr, GString * out)
{
switch (fr->grouping) {
case FILTER_GROUP_ALL:
g_string_append(out, " (and\n ");
break;
case FILTER_GROUP_ANY:
g_string_append(out, " (or\n ");
break;
default:
g_warning("Invalid grouping");
}
filter_part_build_code_list(fr->parts, out);
g_string_append(out, ")\n");
}
static void
match_all(GtkWidget * widget, FilterRule * fr)
{
fr->grouping = FILTER_GROUP_ALL;
}
static void
match_any(GtkWidget * widget, FilterRule * fr)
{
fr->grouping = FILTER_GROUP_ANY;
}
struct _part_data {
FilterRule *fr;
RuleContext *f;
FilterPart *part;
GtkWidget *partwidget, *container;
};
static void
option_activate(GtkMenuItem * item, struct _part_data *data)
{
FilterPart *part = gtk_object_get_data(GTK_OBJECT(item), "part");
FilterPart *newpart;
/* dont update if we haven't changed */
if (!strcmp(part->title, data->part->title))
return;
/* here we do a widget shuffle, throw away the old widget/rulepart,
and create another */
if (data->partwidget)
gtk_container_remove(GTK_CONTAINER(data->container), data->partwidget);
newpart = filter_part_clone(part);
filter_rule_replace_part(data->fr, data->part, newpart);
gtk_object_unref(GTK_OBJECT(data->part));
data->part = newpart;
data->partwidget = filter_part_get_widget(newpart);
if (data->partwidget)
gtk_box_pack_start(GTK_BOX(data->container), data->partwidget, FALSE, FALSE, 0);
}
static GtkWidget *
get_rule_part_widget(RuleContext * f, FilterPart * newpart, FilterRule * fr)
{
FilterPart *part = NULL;
GtkWidget *menu;
GtkWidget *item;
GtkWidget *omenu;
GtkWidget *hbox;
GtkWidget *p;
int index = 0, current = 0;
struct _part_data *data;
gchar *s;
data = g_malloc0(sizeof(*data));
data->fr = fr;
data->f = f;
data->part = newpart;
hbox = gtk_hbox_new(FALSE, 0);
/* only set to automatically clean up the memory */
gtk_object_set_data_full(GTK_OBJECT(hbox), "data", data, g_free);
p = filter_part_get_widget(newpart);
data->partwidget = p;
data->container = hbox;
menu = gtk_menu_new();
/* sigh, this is a little ugly */
while ((part = rule_context_next_part(f, part))) {
s = e_utf8_to_gtk_string(menu, part->title);
item = gtk_menu_item_new_with_label(s);
g_free(s);
gtk_object_set_data(GTK_OBJECT(item), "part", part);
gtk_signal_connect(GTK_OBJECT(item), "activate", option_activate, data);
gtk_menu_append(GTK_MENU(menu), item);
gtk_widget_show(item);
if (!strcmp(newpart->title, part->title)) {
current = index;
}
index++;
}
omenu = gtk_option_menu_new();
gtk_option_menu_set_menu(GTK_OPTION_MENU(omenu), menu);
gtk_option_menu_set_history(GTK_OPTION_MENU(omenu), current);
gtk_widget_show(omenu);
gtk_box_pack_start(GTK_BOX(hbox), omenu, FALSE, FALSE, 0);
if (p) {
gtk_box_pack_start(GTK_BOX(hbox), p, FALSE, FALSE, 0);
}
gtk_widget_show_all(hbox);
return hbox;
}
struct _rule_data {
FilterRule *fr;
RuleContext *f;
GtkWidget *parts;
};
static void
less_parts(GtkWidget * button, struct _rule_data *data)
{
GList *l;
FilterPart *part;
GtkWidget *w;
l = data->fr->parts;
if (g_list_length(l) < 2)
return;
/* remove the last one from the list */
l = g_list_last(l);
part = l->data;
filter_rule_remove_part(data->fr, part);
gtk_object_unref((GtkObject *) part);
/* and from the display */
l = g_list_last(GTK_BOX(data->parts)->children);
w = ((GtkBoxChild *) l->data)->widget;
gtk_container_remove(GTK_CONTAINER(data->parts), w);
}
static void
more_parts(GtkWidget * button, struct _rule_data *data)
{
FilterPart *new;
GtkWidget *w;
/* create a new rule entry, use the first type of rule */
new = rule_context_next_part(data->f, NULL);
if (new) {
new = filter_part_clone(new);
filter_rule_add_part(data->fr, new);
w = get_rule_part_widget(data->f, new, data->fr);
gtk_box_pack_start(GTK_BOX(data->parts), w, FALSE, FALSE, 0);
}
}
static void
name_changed(GtkEntry * entry, FilterRule * fr)
{
g_free(fr->name);
fr->name = e_utf8_gtk_entry_get_text(entry);
}
GtkWidget *
filter_rule_get_widget(FilterRule * fr, struct _RuleContext *f)
{
return ((FilterRuleClass *) ((GtkObject *) fr)->klass)->get_widget(fr, f);
}
static GtkWidget *
get_widget(FilterRule * fr, struct _RuleContext *f)
{
GtkWidget *vbox, *parts, *inframe;
GtkWidget *hbox;
GtkWidget *button, *pixmap;
GtkWidget *w;
GtkWidget *menu, *item, *omenu;
GtkWidget *frame;
GtkWidget *name;
GtkWidget *label;
GtkWidget *scrolledwindow;
GtkObject *hadj, *vadj;
GList *l;
FilterPart *part;
char *string;
struct _rule_data *data;
/* this stuff should probably be a table, but the
rule parts need to be a vbox */
vbox = gtk_vbox_new(FALSE, 3);
label = gtk_label_new(_("Rule name: "));
name = gtk_entry_new();
if (!fr->name)
fr->name = g_strdup(_("untitled"));
if (fr->name)
e_utf8_gtk_entry_set_text(GTK_ENTRY(name), fr->name);
hbox = gtk_hbox_new(FALSE, 3);
gtk_box_pack_start(GTK_BOX(hbox), label, FALSE, FALSE, 0);
gtk_box_pack_start(GTK_BOX(hbox), name, TRUE, TRUE, 0);
gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 3);
gtk_signal_connect(GTK_OBJECT(name), "changed", name_changed, fr);
frame = gtk_frame_new(_("If"));
inframe = gtk_vbox_new(FALSE, 3);
gtk_container_add(GTK_CONTAINER(frame), inframe);
/* this is the parts list, it should probably be inside a scrolling list */
parts = gtk_vbox_new(FALSE, 3);
/* data for the parts part of the display */
data = g_malloc0(sizeof(*data));
data->f = f;
data->fr = fr;
data->parts = parts;
/* only set to automatically clean up the memory */
gtk_object_set_data_full(GTK_OBJECT(vbox), "data", data, g_free);
hbox = gtk_hbox_new(FALSE, 3);
label = gtk_label_new(_("Execute actions"));
menu = gtk_menu_new();
string = e_utf8_to_gtk_string(menu, _("if all criteria are met"));
item = gtk_menu_item_new_with_label(string);
g_free(string);
gtk_signal_connect(GTK_OBJECT(item), "activate", match_all, fr);
gtk_menu_append(GTK_MENU(menu), item);
gtk_widget_show(item);
string = e_utf8_to_gtk_string(menu, _("if any criteria are met"));
item = gtk_menu_item_new_with_label(string);
g_free(string);
gtk_signal_connect(GTK_OBJECT(item), "activate", match_any, fr);
gtk_menu_append(GTK_MENU(menu), item);
gtk_widget_show(item);
omenu = gtk_option_menu_new();
gtk_option_menu_set_menu(GTK_OPTION_MENU(omenu), menu);
gtk_option_menu_set_history(GTK_OPTION_MENU(omenu), fr->grouping == FILTER_GROUP_ALL ? 0 : 1);
gtk_widget_show(omenu);
pixmap = gnome_stock_new_with_icon(GNOME_STOCK_PIXMAP_ADD);
button = gnome_pixmap_button(pixmap, _("More criterion"));
gtk_button_set_relief(GTK_BUTTON(button), GTK_RELIEF_NONE);
gtk_signal_connect(GTK_OBJECT(button), "clicked", more_parts, data);
gtk_box_pack_start(GTK_BOX(hbox), button, FALSE, FALSE, 3);
pixmap = gnome_stock_new_with_icon(GNOME_STOCK_PIXMAP_REMOVE);
button = gnome_pixmap_button(pixmap, _("Fewer criterion"));
gtk_button_set_relief(GTK_BUTTON(button), GTK_RELIEF_NONE);
gtk_signal_connect(GTK_OBJECT(button), "clicked", less_parts, data);
gtk_box_pack_start(GTK_BOX(hbox), button, FALSE, FALSE, 3);
gtk_box_pack_start(GTK_BOX(hbox), label, FALSE, FALSE, 0);
gtk_box_pack_start(GTK_BOX(hbox), omenu, FALSE, FALSE, 0);
gtk_box_pack_start(GTK_BOX(inframe), hbox, FALSE, FALSE, 3);
l = fr->parts;
while (l) {
part = l->data;
w = get_rule_part_widget(f, part, fr);
gtk_box_pack_start(GTK_BOX(parts), w, FALSE, FALSE, 3);
l = g_list_next(l);
}
hadj = gtk_adjustment_new(0.0, 0.0, 1.0, 1.0, 1.0, 1.0);
vadj = gtk_adjustment_new(0.0, 0.0, 1.0, 1.0, 1.0, 1.0);
scrolledwindow = gtk_scrolled_window_new(GTK_ADJUSTMENT(hadj), GTK_ADJUSTMENT(vadj));
gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwindow), GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
gtk_scrolled_window_add_with_viewport(GTK_SCROLLED_WINDOW(scrolledwindow), parts);
gtk_box_pack_start(GTK_BOX(inframe), scrolledwindow, FALSE, FALSE, 3);
/*gtk_box_pack_start (GTK_BOX (inframe), parts, FALSE, FALSE, 3); */
gtk_box_pack_start(GTK_BOX(vbox), frame, FALSE, FALSE, 3);
gtk_widget_show_all(vbox);
return vbox;
}
FilterRule *
filter_rule_next_list(GList * l, FilterRule * last, const char *source)
{
GList *node = l;
if (last != NULL) {
node = g_list_find(node, last);
if (node == NULL)
node = l;
else
node = g_list_next(node);
}
if (source) {
while (node) {
FilterRule *rule = node->data;
if (rule->source && strcmp(rule->source, source) == 0)
break;
node = g_list_next(node);
}
}
if (node)
return node->data;
return NULL;
}
FilterRule *
filter_rule_find_list(GList * l, const char *name, const char *source)
{
while (l) {
FilterRule *rule = l->data;
if (strcmp(rule->name, name) == 0)
if (source == NULL || (rule->source != NULL && strcmp(rule->source, source) == 0))
return rule;
l = g_list_next(l);
}
return NULL;
}