path: root/mail/em-filter-folder-element.c

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
 *  Copyright(C)2000-2002 Ximian Inc.
 *
 *  Authors: Not Zed <notzed@lostzed.mmc.com.au>
 *           Jeffrey Stedfast <fejj@ximian.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of version 2 of the GNU General Public
 * License as published by the Free Software Foundation.
 *
 * 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, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <string.h>

#include <gtk/gtk.h>
#include <libgnome/gnome-i18n.h>

#include "em-filter-folder-element.h"
#include "mail/em-folder-selection-button.h"
#include "mail/mail-component.h"
#include "mail/em-utils.h"
#include "libedataserver/e-sexp.h"
#include "e-util/e-error.h"

#define d(x)

static gboolean validate(FilterElement *fe);
static int folder_eq(FilterElement *fe, FilterElement *cm);
static void xml_create(FilterElement *fe, xmlNodePtr node);
static xmlNodePtr xml_encode(FilterElement *fe);
static int xml_decode(FilterElement *fe, xmlNodePtr node);
static GtkWidget *get_widget(FilterElement *fe);
static void build_code(FilterElement *fe, GString *out, struct _FilterPart *ff);
static void format_sexp(FilterElement *, GString *);
static void emff_copy_value(FilterElement *de, FilterElement *se);

static void em_filter_folder_element_class_init(EMFilterFolderElementClass *class);
static void em_filter_folder_element_init(EMFilterFolderElement *ff);
static void em_filter_folder_element_finalise(GObject *obj);

static FilterElementClass *parent_class = NULL;

GType
em_filter_folder_element_get_type(void)
{
    static GType type = 0;
    
    if (!type) {
        static const GTypeInfo info = {
            sizeof(EMFilterFolderElementClass),
            NULL, /* base_class_init */
            NULL, /* base_class_finalize */
            (GClassInitFunc)em_filter_folder_element_class_init,
            NULL, /* class_finalize */
            NULL, /* class_data */
            sizeof(EMFilterFolderElement),
            0,    /* n_preallocs */
            (GInstanceInitFunc)em_filter_folder_element_init,
        };
        
        type = g_type_register_static(FILTER_TYPE_ELEMENT, "EMFilterFolderElement", &info, 0);
    }
    
    return type;
}

static void
em_filter_folder_element_class_init(EMFilterFolderElementClass *klass)
{
    GObjectClass *object_class = G_OBJECT_CLASS(klass);
    FilterElementClass *fe_class = FILTER_ELEMENT_CLASS(klass);
    
    parent_class = g_type_class_ref(FILTER_TYPE_ELEMENT);
    
    object_class->finalize = em_filter_folder_element_finalise;
    
    /* override methods */
    fe_class->validate = validate;
    fe_class->eq = folder_eq;
    fe_class->xml_create = xml_create;
    fe_class->xml_encode = xml_encode;
    fe_class->xml_decode = xml_decode;
    fe_class->get_widget = get_widget;
    fe_class->build_code = build_code;
    fe_class->format_sexp = format_sexp;
    fe_class->copy_value = emff_copy_value;
}

static void
em_filter_folder_element_init(EMFilterFolderElement *ff)
{
    ;
}

static void
em_filter_folder_element_finalise(GObject *obj)
{
    EMFilterFolderElement *ff = (EMFilterFolderElement *)obj;
    
    g_free(ff->uri);
    
        G_OBJECT_CLASS(parent_class)->finalize(obj);
}

/**
 * em_filter_folder_element_new:
 *
 * Create a new EMFilterFolderElement object.
 * 
 * Return value: A new #EMFilterFolderElement object.
 **/
EMFilterFolderElement *
em_filter_folder_element_new(void)
{
    return(EMFilterFolderElement *)g_object_new(em_filter_folder_element_get_type(), NULL, NULL);
}

void
em_filter_folder_element_set_value(EMFilterFolderElement *ff, const char *uri)
{
    g_free(ff->uri);
    ff->uri = g_strdup(uri);
}

static gboolean
validate(FilterElement *fe)
{
    EMFilterFolderElement *ff = (EMFilterFolderElement *)fe;
    
    if (ff->uri && *ff->uri) {
        return TRUE;
    } else {
        /* FIXME: FilterElement should probably have a
                   GtkWidget member pointing to the value gotten with
                   ::get_widget()so that we can get the parent window
                   here. */
        e_error_run(NULL, "mail:no-folder", NULL);

        return FALSE;
    }
}

static int
folder_eq(FilterElement *fe, FilterElement *cm)
{
        return FILTER_ELEMENT_CLASS(parent_class)->eq(fe, cm)
        && strcmp(((EMFilterFolderElement *)fe)->uri, ((EMFilterFolderElement *)cm)->uri)== 0;
}

static void
xml_create(FilterElement *fe, xmlNodePtr node)
{
    /* parent implementation */
        FILTER_ELEMENT_CLASS(parent_class)->xml_create(fe, node);
}

static xmlNodePtr
xml_encode(FilterElement *fe)
{
    xmlNodePtr value, work;
    EMFilterFolderElement *ff = (EMFilterFolderElement *)fe;
    
    d(printf("Encoding folder as xml\n"));
    
    value = xmlNewNode(NULL, "value");
    xmlSetProp(value, "name", fe->name);
    xmlSetProp(value, "type", "folder");
    
    work = xmlNewChild(value, NULL, "folder", NULL);
    xmlSetProp(work, "uri", ff->uri);
    
    return value;
}

static int
xml_decode(FilterElement *fe, xmlNodePtr node)
{
    EMFilterFolderElement *ff = (EMFilterFolderElement *)fe;
    xmlNodePtr n;
    
    d(printf("Decoding folder from xml %p\n", fe));
    
    xmlFree(fe->name);
    fe->name = xmlGetProp(node, "name");
    
    n = node->children;
    while(n) {
        if (!strcmp(n->name, "folder")) {
            char *uri;
            
            uri = xmlGetProp(n, "uri");
            g_free(ff->uri);
            ff->uri = g_strdup(uri);
            xmlFree(uri);
            break;
        }
        n = n->next;
    }
    
    return 0;
}

static void
folder_selected(EMFolderSelectionButton *button, EMFilterFolderElement *ff)
{
    const char *uri;

    uri = em_folder_selection_button_get_selection(button);
    g_free(ff->uri);
    ff->uri = uri!=NULL?em_uri_from_camel(uri):NULL;
    
    gdk_window_raise(GTK_WIDGET(gtk_widget_get_ancestor(GTK_WIDGET(button), GTK_TYPE_WINDOW))->window);
}

static GtkWidget *
get_widget(FilterElement *fe)
{
    EMFilterFolderElement *ff = (EMFilterFolderElement *)fe;
    GtkWidget *button;
    char *uri;

    uri = em_uri_to_camel(ff->uri);
    button = em_folder_selection_button_new(_("Select Folder"), NULL);
    em_folder_selection_button_set_selection(EM_FOLDER_SELECTION_BUTTON(button), uri);
    g_free(uri);
    
    gtk_widget_show(button);
    g_signal_connect(button, "selected", G_CALLBACK(folder_selected), ff);
    
    return button;
}

static void
build_code(FilterElement *fe, GString *out, struct _FilterPart *ff)
{
    return;
}

static void
format_sexp(FilterElement *fe, GString *out)
{
    EMFilterFolderElement *ff = (EMFilterFolderElement *)fe;
    
    e_sexp_encode_string(out, ff->uri);
}

static void
emff_copy_value(FilterElement *de, FilterElement *se)
{
    if (EM_IS_FILTER_FOLDER_ELEMENT(se))
        em_filter_folder_element_set_value((EMFilterFolderElement *)de, ((EMFilterFolderElement *)se)->uri);
    else
        parent_class->copy_value(de, se);
}