path: root/mail/folder-browser.c

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
 * folder-browser.c: Folder browser top level component
 *
 * Author:
 *   Miguel de Icaza (miguel@kernel.org)
 *
 * (C) 2000 Helix Code, Inc.
 */
#include <config.h>
#include <ctype.h>
#include <gnome.h>
#include "e-util/e-util.h"
#include "e-util/e-sexp.h"
#include "e-util/e-unicode.h"
#include "folder-browser.h"
#include "mail.h"
#include "mail-tools.h"
#include "message-list.h"
#include "mail-threads.h"
#include "mail-ops.h"
#include <widgets/e-paned/e-vpaned.h>

#include "mail-vfolder.h"
#include "filter/vfolder-rule.h"
#include "filter/vfolder-context.h"
#include "filter/filter-option.h"
#include "filter/filter-input.h"

#include "mail-local.h"
#include "mail-config.h"

#define PARENT_TYPE (gtk_table_get_type ())

static void fb_resize_cb (GtkWidget *w, GtkAllocation *a);

static GtkObjectClass *folder_browser_parent_class;

static void oc_destroy (gpointer obj, gpointer user)
{
    struct fb_ondemand_closure *oc = (struct fb_ondemand_closure *) obj;

    g_free (oc->path);
    g_free (oc);
}

static void
folder_browser_destroy (GtkObject *object)
{
    FolderBrowser *folder_browser = FOLDER_BROWSER (object);

    if (folder_browser->shell) {
        CORBA_Environment ev;

        CORBA_exception_init (&ev);
        Bonobo_Unknown_unref (folder_browser->shell, &ev);
        CORBA_exception_free (&ev);
    }
    
    if (folder_browser->uri)
        g_free (folder_browser->uri);

    if (folder_browser->folder) {
        mail_do_sync_folder (folder_browser->folder);
        camel_object_unref (CAMEL_OBJECT (folder_browser->folder));
    }

    if (folder_browser->message_list)
        bonobo_object_unref (BONOBO_OBJECT (folder_browser->message_list));

    if (folder_browser->mail_display)
        gtk_widget_destroy (GTK_WIDGET (folder_browser->mail_display));

    if (folder_browser->filter_context)
        gtk_object_unref (GTK_OBJECT (folder_browser->filter_context));
    
    if (folder_browser->filter_menu_paths) {
        g_slist_foreach (folder_browser->filter_menu_paths, oc_destroy, NULL);
        g_slist_free (folder_browser->filter_menu_paths);
    }

    folder_browser_parent_class->destroy (object);
}

static void
folder_browser_class_init (GtkObjectClass *object_class)
{
    object_class->destroy = folder_browser_destroy;

    folder_browser_parent_class = gtk_type_class (PARENT_TYPE);
}

/*
 * static gboolean
 * folder_browser_load_folder (FolderBrowser *fb, const char *name)
 * {
 *  CamelFolder *new_folder;
 * 
 *  new_folder = mail_tool_uri_to_folder_noex (name);
 * 
 *  if (!new_folder)
 *      return FALSE;
 * 
 *  if (fb->folder)
 *      camel_object_unref (CAMEL_OBJECT (fb->folder));
 *  fb->folder = new_folder;
 *  message_list_set_folder (fb->message_list, new_folder);
 *  return TRUE;
 * }
 */

#define EQUAL(a,b) (strcmp (a,b) == 0)

gboolean folder_browser_set_uri (FolderBrowser *folder_browser, const char *uri)
{
    mail_do_load_folder (folder_browser, uri);
    return TRUE;
}

void
folder_browser_set_message_preview (FolderBrowser *folder_browser, gboolean show_message_preview)
{
    if (folder_browser->preview_shown == show_message_preview)
        return;

    g_warning ("FIXME: implement me");
}

static char * search_options[] = {
    "Body or subject contains",
    "Body contains",
    "Subject contains",
    "Body does not contain",
    "Subject does not contain",
    NULL
};

/* NOTE: If this is changed, then change the search_save() function to match! */
/* %s is replaced by the whole search string in quotes ...
   possibly could split the search string into words as well ? */
static char * search_string[] = {
    "(or (body-contains %s) (match-all (header-contains \"Subject\" %s)))",
    "(body-contains %s)",
    "(match-all (header-contains \"Subject\" %s)",
    "(match-all (not (body-contains %s)))",
    "(match-all (not (header-contains \"Subject\" %s)))"
};

static void
search_set(FolderBrowser *fb)
{
    GtkWidget *widget;
    GString *out;
    char *str;
    int index;
    char *text;

    text = e_utf8_gtk_entry_get_text((GtkEntry *)fb->search_entry);

    if (text == NULL || text[0] == 0) {
        if (text) g_free (text);
        mail_do_regenerate_messagelist (fb->message_list, NULL);
        return;
    }

    widget = gtk_menu_get_active (GTK_MENU(GTK_OPTION_MENU(fb->search_menu)->menu));
    index = (int)gtk_object_get_data((GtkObject *)widget, "search_option");
    if (index > sizeof(search_string)/sizeof(search_string[0]))
        index = 0;
    str = search_string[index];

    out = g_string_new("");
    while (*str) {
        if (str[0] == '%' && str[1]=='s') {
            str+=2;
            e_sexp_encode_string(out, text);
        } else {
            g_string_append_c(out, *str);
            str++;
        }
    }
    mail_do_regenerate_messagelist (fb->message_list, out->str);
    g_string_free(out, TRUE);

    g_free (text);
}

static void
search_menu_deactivate(GtkWidget *menu, FolderBrowser *fb)
{
    search_set(fb);
}

static GtkWidget *
create_option_menu (char **menu_list, int item, void *data)
{
    GtkWidget *omenu;
    GtkWidget *menu;
    int i = 0;
       
    omenu = gtk_option_menu_new ();
    menu = gtk_menu_new ();
    while (*menu_list){
        GtkWidget *entry;

        entry = e_utf8_gtk_menu_item_new_with_label (*menu_list);
        gtk_widget_show (entry);
        gtk_object_set_data((GtkObject *)entry, "search_option", (void *)i);
        gtk_menu_append (GTK_MENU (menu), entry);
        menu_list++;
        i++;
    }
    gtk_option_menu_set_menu (GTK_OPTION_MENU (omenu), menu);
    gtk_option_menu_set_history (GTK_OPTION_MENU (omenu), item);
    gtk_widget_show (omenu);

    gtk_signal_connect (GTK_OBJECT (menu), 
                "deactivate",
                GTK_SIGNAL_FUNC (search_menu_deactivate), data);

    return omenu;
}

static void
search_activate(GtkEntry *entry, FolderBrowser *fb)
{
    search_set(fb);
}

static void
search_save(GtkWidget *w, FolderBrowser *fb)
{
    GtkWidget *widget;
    int index;
    char *text;
    FilterElement *element;
    VfolderRule *rule;
    FilterPart *part;

    text = e_utf8_gtk_entry_get_text((GtkEntry *)fb->search_entry);

    if (text == NULL || text[0] == 0) {
        if (text) g_free (text);
        return;
    }

    widget = gtk_menu_get_active (GTK_MENU(GTK_OPTION_MENU(fb->search_menu)->menu));
    index = (int)gtk_object_get_data((GtkObject *)widget, "search_option");
    rule = vfolder_rule_new();
    ((FilterRule *)rule)->grouping = FILTER_GROUP_ANY;
    vfolder_rule_add_source(rule, fb->uri);
    filter_rule_set_name((FilterRule *)rule, text);
    switch(index) {
    default:        /* header or body contains */
        index = 0;
    case 1: case 2:
        if (index == 0 || index == 1) { /* body-contains */
            part = vfolder_create_part("body");
            filter_rule_add_part((FilterRule *)rule, part);
            element = filter_part_find_element(part, "body-type");
            filter_option_set_current((FilterOption *)element, "contains");
            element = filter_part_find_element(part, "word");
            filter_input_set_value((FilterInput *)element, text);
        }
        if (index == 0 || index == 2) { /* subject contains */
            part = vfolder_create_part("subject");
            filter_rule_add_part((FilterRule *)rule, part);
            element = filter_part_find_element(part, "subject-type");
            filter_option_set_current((FilterOption *)element, "contains");
            element = filter_part_find_element(part, "subject");
            filter_input_set_value((FilterInput *)element, text);
        }
        break;
    case 3:         /* not body contains */
        part = vfolder_create_part("body");
        filter_rule_add_part((FilterRule *)rule, part);
        element = filter_part_find_element(part, "body-type");
        filter_option_set_current((FilterOption *)element, "not contains");
        element = filter_part_find_element(part, "word");
        filter_input_set_value((FilterInput *)element, text);
        break;
    case 4:         /* not header contains */
        part = vfolder_create_part("subject");
        filter_rule_add_part((FilterRule *)rule, part);
        element = filter_part_find_element(part, "subject-type");
        filter_option_set_current((FilterOption *)element, "not contains");
        element = filter_part_find_element(part, "subject");
        filter_input_set_value((FilterInput *)element, text);
        break;
    }

    vfolder_gui_add_rule(rule);

    g_free (text);
}

void
folder_browser_clear_search (FolderBrowser *fb)
{
    gtk_entry_set_text (GTK_ENTRY (fb->search_entry), "");
    gtk_option_menu_set_history (GTK_OPTION_MENU (fb->search_menu), 0);
    mail_do_regenerate_messagelist (fb->message_list, NULL);
}

static int
etable_key (ETable *table, int row, int col, GdkEvent *ev, FolderBrowser *fb)
{
    if ((ev->key.state & !(GDK_SHIFT_MASK | GDK_LOCK_MASK)) != 0)
        return FALSE;

    if (ev->key.keyval == GDK_space || ev->key.keyval == GDK_BackSpace) {
        GtkAdjustment *vadj;
        gfloat page_size;

        vadj = e_scroll_frame_get_vadjustment (fb->mail_display->scroll);
        page_size = vadj->page_size - vadj->step_increment;

        if (ev->key.keyval == GDK_BackSpace) {
            if (vadj->value > vadj->lower + page_size)
                vadj->value -= page_size;
            else
                vadj->value = vadj->lower;
        } else {
            if (vadj->value < vadj->upper - vadj->page_size - page_size)
                vadj->value += page_size;
            else
                vadj->value = vadj->upper - vadj->page_size;
        }

        gtk_adjustment_value_changed (vadj);
        return TRUE;
    } else if (ev->key.keyval == GDK_Delete ||
           ev->key.keyval == GDK_KP_Delete) {
        delete_msg (NULL, fb);
        message_list_select (fb->message_list, row,
                     MESSAGE_LIST_SELECT_NEXT,
                     0, CAMEL_MESSAGE_DELETED);
        return TRUE;
    } else if (ev->key.keyval == 'n' || ev->key.keyval == 'N' ||
           ev->key.keyval == 'p' || ev->key.keyval == 'P') {
        message_list_select (fb->message_list, row,
                     tolower (ev->key.keyval) == 'p' ?
                     MESSAGE_LIST_SELECT_PREVIOUS :
                     MESSAGE_LIST_SELECT_NEXT,
                     0, CAMEL_MESSAGE_SEEN);
    }

    return FALSE;
}

static void
folder_browser_gui_init (FolderBrowser *fb)
{
    GtkWidget *hbox, *label;
    GtkButton *button;

    /*
     * The panned container
     */
    fb->vpaned = e_vpaned_new ();
    gtk_widget_show (fb->vpaned);

    gtk_table_attach (
        GTK_TABLE (fb), fb->vpaned,
        0, 1, 1, 3,
        GTK_FILL | GTK_EXPAND,
        GTK_FILL | GTK_EXPAND,
        0, 0);

    /* quick-search entry */
    hbox = gtk_hbox_new(FALSE, 3);
    gtk_widget_show(hbox);
    fb->search_entry = gtk_entry_new();
    gtk_widget_show(fb->search_entry);
    gtk_signal_connect(GTK_OBJECT (fb->search_entry), "activate", search_activate, fb);
    /* gtk_signal_connect(fb->search_entry, "changed", search_activate, fb); */
    label = gtk_label_new(_("Search"));
    gtk_widget_show(label);
    fb->search_menu = create_option_menu(search_options, 0, fb);
    button = (GtkButton *)gtk_button_new_with_label(_("Save"));
    gtk_widget_show((GtkWidget *)button);
    gtk_signal_connect((GtkObject *)button, "clicked", search_save, fb);
    gtk_box_pack_end((GtkBox *)hbox, (GtkWidget *)button, FALSE, FALSE, 3);
    gtk_box_pack_end((GtkBox *)hbox, fb->search_entry, FALSE, FALSE, 3);
    gtk_box_pack_end((GtkBox *)hbox, fb->search_menu, FALSE, FALSE, 3);
    gtk_box_pack_end((GtkBox *)hbox, label, FALSE, FALSE, 3);
    gtk_table_attach (
        GTK_TABLE (fb), hbox,
        0, 1, 0, 1,
        GTK_FILL | GTK_EXPAND,
        0,
        0, 0);

    fb->message_list_w = message_list_get_widget (fb->message_list);
    e_paned_add1 (E_PANED (fb->vpaned), fb->message_list_w);
    gtk_widget_show (fb->message_list_w);

    /* (jwise) <-- for searching purposes :) */
    gtk_signal_connect (GTK_OBJECT (fb->message_list_w), "size_allocate",
                        GTK_SIGNAL_FUNC (fb_resize_cb), NULL);

    e_paned_add2 (E_PANED (fb->vpaned), GTK_WIDGET (fb->mail_display));
    e_paned_set_position (E_PANED (fb->vpaned), mail_config_paned_size());
    gtk_widget_show (GTK_WIDGET (fb->mail_display));
    gtk_widget_show (GTK_WIDGET (fb));
}

static void
folder_browser_init (GtkObject *object)
{
}

static void
my_folder_browser_init (GtkObject *object)
{
    FolderBrowser *fb = FOLDER_BROWSER (object);

    /*
     * Setup parent class fields.
     */ 
    GTK_TABLE (fb)->homogeneous = FALSE;
    gtk_table_resize (GTK_TABLE (fb), 1, 2);

    /*
     * Our instance data
     */
    fb->message_list = MESSAGE_LIST (message_list_new (fb));
    fb->mail_display = MAIL_DISPLAY (mail_display_new ());

    gtk_signal_connect (GTK_OBJECT (fb->message_list->etable),
                "key_press", GTK_SIGNAL_FUNC (etable_key), fb);

    fb->filter_menu_paths = NULL;
    fb->filter_context = NULL;

    folder_browser_gui_init (fb);
}

GtkWidget *
folder_browser_new (Evolution_Shell shell)
{
    static int serial;
    FolderBrowser *folder_browser = gtk_type_new (folder_browser_get_type ());
    CORBA_Environment ev;

    my_folder_browser_init (GTK_OBJECT (folder_browser));
    folder_browser->uri = NULL;
    folder_browser->serial = serial++;
    folder_browser->shell = shell;

#ifndef NO_WARNINGS
#warning "is this a circular reference???"
#endif

    CORBA_exception_init (&ev);
    Bonobo_Unknown_ref (shell, &ev);
    CORBA_exception_free (&ev);

    return GTK_WIDGET (folder_browser);
}


E_MAKE_TYPE (folder_browser, "FolderBrowser", FolderBrowser, folder_browser_class_init, folder_browser_init, PARENT_TYPE);

static void fb_resize_cb (GtkWidget *w, GtkAllocation *a)
{
    mail_config_set_paned_size (a->height + 90);
}