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path: root/mail/em-folder-view.c
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/*
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) version 3.
 *
 * 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with the program; if not, see <http://www.gnu.org/licenses/>  
 *
 *
 * Authors:
 *      Michael Zucchi <notzed@ximian.com>
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 *
 */

#include <config.h>

#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>

#include <glib/gi18n.h>
#include <glib/gstdio.h>
#include <gdk/gdkkeysyms.h>

#ifdef G_OS_WIN32
/* Work around 'DATADIR' and 'interface' lossage in <windows.h> */
#define DATADIR crap_DATADIR
#include <windows.h>
#undef DATADIR
#undef interface
#endif

#include <gconf/gconf-client.h>

#include <camel/camel-mime-message.h>
#include <camel/camel-stream.h>
#include <camel/camel-stream-filter.h>
#include <camel/camel-mime-filter.h>
#include <camel/camel-mime-filter-tohtml.h>
#include <camel/camel-mime-filter-enriched.h>
#include <camel/camel-multipart.h>
#include <camel/camel-stream-mem.h>
#include <camel/camel-url.h>
#include <camel/camel-vee-folder.h>
#include <camel/camel-disco-store.h>
#include <camel/camel-offline-store.h>
#include <camel/camel-vee-store.h>

#include <gtkhtml/gtkhtml.h>
#include <gtkhtml/gtkhtml-embedded.h>
#include <gtkhtml/gtkhtml-stream.h>

#include <libedataserver/e-data-server-util.h>
#include <libedataserver/e-msgport.h>

#include "menus/gal-view-etable.h"
#include "menus/gal-view-factory-etable.h"
#include "menus/gal-view-instance.h"

#include "misc/e-charset-picker.h"
#include <misc/e-spinner.h>

#include "e-util/e-error.h"
#include "e-util/e-dialog-utils.h"
#include "e-util/e-icon-factory.h"
#include "e-util/e-print.h"
#include "e-util/e-profile-event.h"
#include "e-util/e-util-private.h"
#include "e-util/e-util-labels.h"
#include "shell/e-shell.h"

#include "filter/filter-rule.h"

#include "em-format-html-display.h"
#include "em-format-html-print.h"
#include "em-folder-selection.h"
#include "em-folder-view.h"
#include "em-folder-browser.h"
#include "em-mailer-prefs.h"
#include "em-folder-browser.h"
#include "message-list.h"
#include "em-utils.h"
#include "em-composer-utils.h"
#include "em-menu.h"
#include "em-event.h"
#include "e-mail-shell-module.h"

#include "mail-mt.h"
#include "mail-ops.h"
#include "mail-config.h"
#include "mail-autofilter.h"
#include "mail-vfolder.h"
#include "mail-tools.h"

#ifdef HAVE_XFREE
#include <X11/XF86keysym.h>
#endif

/* this is added to emfv->enable_map in :init() */
static const EMFolderViewEnable emfv_enable_map[] = {
    { "EditCut",                  EM_POPUP_SELECT_MANY },
    { "EditCopy",                 EM_FOLDER_VIEW_SELECT_SELECTION },
    { "EditPaste",                EM_POPUP_SELECT_FOLDER },
//  { "SelectAllText",            EM_POPUP_SELECT_ONE },

    /* FIXME: should these be single-selection? */
    { "MailNext",                 EM_POPUP_SELECT_MANY|EM_FOLDER_VIEW_SELECT_NEXT_MSG },
//  { "MailNextFlagged",          EM_POPUP_SELECT_MANY },
//  { "MailNextUnread",           EM_POPUP_SELECT_MANY },
//  { "MailNextThread",           EM_POPUP_SELECT_MANY },
    { "MailPrevious",             EM_POPUP_SELECT_MANY|EM_FOLDER_VIEW_SELECT_PREV_MSG },
//  { "MailPreviousFlagged",      EM_POPUP_SELECT_MANY },
//  { "MailPreviousUnread",       EM_POPUP_SELECT_MANY },

    { "AddSenderToAddressbook",   EM_POPUP_SELECT_ADD_SENDER },

//  { "MessageApplyFilters",      EM_POPUP_SELECT_MANY },
//  { "MessageFilterJunk",        EM_POPUP_SELECT_MANY },
//  { "MessageCopy",              EM_POPUP_SELECT_MANY },
//  { "MessageDelete",            EM_POPUP_SELECT_MANY|EM_POPUP_SELECT_DELETE },
//  { "MessageDeleteKey",         EM_POPUP_SELECT_MANY},    
//  { "MessageForward",           EM_POPUP_SELECT_MANY },
//  { "MessageForwardAttached",   EM_POPUP_SELECT_MANY },
//  { "MessageForwardInline",     EM_POPUP_SELECT_ONE },
//  { "MessageForwardQuoted",     EM_POPUP_SELECT_ONE },
//  { "MessageRedirect",          EM_POPUP_SELECT_ONE },
//  { "MessageMarkAsRead",        EM_POPUP_SELECT_MANY|EM_POPUP_SELECT_MARK_READ },
//  { "MessageMarkAsUnRead",      EM_POPUP_SELECT_MANY|EM_POPUP_SELECT_MARK_UNREAD },
//  { "MessageMarkAsImportant",   EM_POPUP_SELECT_MANY|EM_POPUP_SELECT_MARK_IMPORTANT },
//  { "MessageMarkAsUnimportant", EM_POPUP_SELECT_MANY|EM_POPUP_SELECT_MARK_UNIMPORTANT },
//  { "MessageMarkAsJunk",        EM_POPUP_SELECT_MANY|EM_POPUP_SELECT_JUNK },
//  { "MessageMarkAsNotJunk",     EM_POPUP_SELECT_MANY},
    { "MessageFollowUpFlag",      EM_POPUP_SELECT_MANY|EM_POPUP_SELECT_FLAG_FOLLOWUP },
    { "MessageFollowUpComplete",  EM_POPUP_SELECT_MANY|EM_POPUP_SELECT_FLAG_COMPLETED },
    { "MessageFollowUpClear",     EM_POPUP_SELECT_MANY|EM_POPUP_SELECT_FLAG_CLEAR },
//  { "MessageMove",              EM_POPUP_SELECT_MANY },
//  { "MessageOpen",              EM_POPUP_SELECT_MANY },
//  { "MessagePostReply",         EM_POPUP_SELECT_ONE },
//  { "MessageReplyAll",          EM_POPUP_SELECT_ONE },
//  { "MessageReplyList",         EM_POPUP_SELECT_ONE|EM_POPUP_SELECT_MAILING_LIST },
//  { "MessageReplySender",       EM_POPUP_SELECT_ONE },
//  { "MessageEdit",              EM_POPUP_SELECT_ONE },
//  { "MessageSaveAs",            EM_POPUP_SELECT_MANY },
    { "MessageSearch",            EM_POPUP_SELECT_ONE| EM_FOLDER_VIEW_PREVIEW_PRESENT },
//  { "MessageUndelete",          EM_POPUP_SELECT_MANY|EM_POPUP_SELECT_UNDELETE },
//  { "PrintMessage",             EM_POPUP_SELECT_ONE },
//  { "PrintPreviewMessage",      EM_POPUP_SELECT_ONE },

//  { "TextZoomIn",           EM_POPUP_SELECT_ONE },
//  { "TextZoomOut",          EM_POPUP_SELECT_ONE },
//  { "TextZoomReset",        EM_POPUP_SELECT_ONE },

    { "ToolsFilterMailingList",   EM_POPUP_SELECT_ONE|EM_POPUP_SELECT_MAILING_LIST},
    { "ToolsFilterRecipient",     EM_POPUP_SELECT_ONE },
    { "ToolsFilterSender",        EM_POPUP_SELECT_ONE },
    { "ToolsFilterSubject",       EM_POPUP_SELECT_ONE },
    { "ToolsVFolderMailingList",  EM_POPUP_SELECT_ONE|EM_POPUP_SELECT_MAILING_LIST},
    { "ToolsVFolderRecipient",    EM_POPUP_SELECT_ONE },
    { "ToolsVFolderSender",       EM_POPUP_SELECT_ONE },
    { "ToolsVFolderSubject",      EM_POPUP_SELECT_ONE },

//  { "ViewLoadImages",       EM_POPUP_SELECT_ONE },
//  { "ViewSource",               EM_POPUP_SELECT_ONE },

//  /* always enabled */
//  { "MailStop", 0 },

    { NULL },
};

struct _EMFolderViewPrivate {
    guint setting_notify_id;
    guint selected_id;
    guint nomarkseen:1;
    guint destroyed:1;

    GtkWidget *invisible;
    char *selection_uri;

    char *selected_uid;
};

static GtkVBoxClass *emfv_parent;

enum {
    EMFV_ON_URL,
    EMFV_LOADED,
    EMFV_CHANGED,
    LAST_SIGNAL
};

static guint signals[LAST_SIGNAL];

static void
emfv_init(GObject *o)
{
    EMFolderView *emfv = (EMFolderView *)o;
    struct _EMFolderViewPrivate *p;
    extern CamelSession *session;

//  gtk_box_set_homogeneous (GTK_BOX (emfv), FALSE);
//
//  p = emfv->priv = g_malloc0(sizeof(struct _EMFolderViewPrivate));
//
//  emfv->statusbar_active = TRUE;
//  emfv->list_active = FALSE;
//
//  emfv->ui_files = g_slist_append(NULL,
//                  g_build_filename (EVOLUTION_UIDIR,
//                            "evolution-mail-message.xml",
//                            NULL));
//
//  emfv->ui_app_name = "evolution-mail";

    emfv->enable_map = g_slist_prepend(NULL, (void *)emfv_enable_map);

//  emfv->list = (MessageList *)message_list_new();
//  g_signal_connect(emfv->list, "message_selected", G_CALLBACK(emfv_list_message_selected), emfv);
//  g_signal_connect(emfv->list, "message_list_built", G_CALLBACK(emfv_list_built), emfv);
//
//  /* FIXME: should this hang off message-list instead? */
//  g_signal_connect(emfv->list->tree, "right_click", G_CALLBACK(emfv_list_right_click), emfv);
//  g_signal_connect(emfv->list->tree, "double_click", G_CALLBACK(emfv_list_double_click), emfv);
//  g_signal_connect(emfv->list->tree, "key_press", G_CALLBACK(emfv_list_key_press), emfv);
//  g_signal_connect(emfv->list->tree, "selection_change", G_CALLBACK(emfv_list_selection_change), emfv);
//
//  emfv->preview = (EMFormatHTMLDisplay *)em_format_html_display_new();
//  /* FIXME: set_session should NOT be called here.  Should it be a constructor attribute? */
//  em_format_set_session ((EMFormat *) emfv->preview, session);
//  g_signal_connect(emfv->preview, "link_clicked", G_CALLBACK(emfv_format_link_clicked), emfv);
    g_signal_connect(emfv->preview, "popup_event", G_CALLBACK(emfv_format_popup_event), emfv);
//  g_signal_connect (emfv->preview, "on_url", G_CALLBACK (emfv_on_url_cb), emfv);
//  g_signal_connect (((EMFormatHTML *)emfv->preview)->html, "button-release-event", G_CALLBACK (emfv_on_html_button_released_cb), emfv);
//#ifdef ENABLE_PROFILING
//  g_signal_connect(emfv->preview, "complete", G_CALLBACK (emfv_format_complete), emfv);
//#endif
    p->invisible = gtk_invisible_new();
    g_signal_connect(p->invisible, "selection_get", G_CALLBACK(emfv_selection_get), emfv);
    g_signal_connect(p->invisible, "selection_clear_event", G_CALLBACK(emfv_selection_clear_event), emfv);
    gtk_selection_add_target(p->invisible, GDK_SELECTION_PRIMARY, GDK_SELECTION_TYPE_STRING, 0);
    gtk_selection_add_target(p->invisible, GDK_SELECTION_CLIPBOARD, GDK_SELECTION_TYPE_STRING, 1);

    emfv->async = mail_async_event_new();
}

static void
emfv_class_init(GObjectClass *klass)
{
    klass->finalize = emfv_finalise;

    ((GtkObjectClass *) klass)->destroy = emfv_destroy;

    ((GtkWidgetClass *) klass)->popup_menu = emfv_popup_menu;

    ((EMFolderViewClass *) klass)->update_message_style = TRUE;

    ((EMFolderViewClass *)klass)->set_folder = emfv_set_folder;
    ((EMFolderViewClass *)klass)->set_folder_uri = emfv_set_folder_uri;
    ((EMFolderViewClass *)klass)->set_message = emfv_set_message;
    ((EMFolderViewClass *)klass)->activate = emfv_activate;

//  ((EMFolderViewClass *)klass)->on_url = emfv_on_url;

    signals[EMFV_ON_URL] = g_signal_new ("on-url",
                         G_OBJECT_CLASS_TYPE (klass),
                         G_SIGNAL_RUN_LAST,
                         G_STRUCT_OFFSET (EMFolderViewClass, on_url),
                         NULL, NULL,
                         e_marshal_VOID__STRING_STRING,
                         G_TYPE_NONE,
                         2, G_TYPE_STRING, G_TYPE_STRING);

    signals[EMFV_LOADED] = g_signal_new("loaded",
                        G_OBJECT_CLASS_TYPE(klass),
                        G_SIGNAL_RUN_LAST,
                        G_STRUCT_OFFSET(EMFolderViewClass, loaded),
                        NULL, NULL,
                        g_cclosure_marshal_VOID__VOID,
                        G_TYPE_NONE,
                        0);

    signals[EMFV_CHANGED] = g_signal_new("changed",
                         G_OBJECT_CLASS_TYPE(klass),
                         G_SIGNAL_RUN_LAST,
                         G_STRUCT_OFFSET(EMFolderViewClass, changed),
                         NULL, NULL,
                         g_cclosure_marshal_VOID__VOID,
                         G_TYPE_NONE,
                         0);
}

static void
emfv_selection_get(GtkWidget *widget, GtkSelectionData *data, guint info, guint time_stamp, EMFolderView *emfv)
{
    struct _EMFolderViewPrivate *p = emfv->priv;

    if (p->selection_uri == NULL)
        return;

    gtk_selection_data_set(data, data->target, 8, (unsigned char *)p->selection_uri, strlen(p->selection_uri));
}

static void
emfv_selection_clear_event(GtkWidget *widget, GdkEventSelection *event, EMFolderView *emfv)
{
#if 0 /* do i care? */
    struct _EMFolderViewPrivate *p = emfv->priv;

    g_free(p->selection_uri);
    p->selection_uri = NULL;
#endif
}

/* ********************************************************************** */

/* Popup menu
   In many cases these are the functions called by the bonobo callbacks too */

/* ********************************************************************** */

/* Bonobo menu's */

/* a lot of stuff maps directly to the popup menu equivalent */
#define EMFV_MAP_CALLBACK(from, to)             \
static void                         \
from(BonoboUIComponent *uid, void *data, const char *path)  \
{                               \
    to(NULL, NULL, data);                   \
}

static void
emfv_edit_cut(BonoboUIComponent *uid, void *data, const char *path)
{
    EMFolderView *emfv = data;

    if (GTK_WIDGET_HAS_FOCUS(emfv->preview->formathtml.html))
        em_format_html_display_cut(emfv->preview);
    else
        message_list_copy(emfv->list, TRUE);
}

static void
emfv_edit_copy(BonoboUIComponent *uid, void *data, const char *path)
{
    EMFolderView *emfv = data;

    if (GTK_WIDGET_HAS_FOCUS(emfv->preview->formathtml.html))
        em_format_html_display_copy(emfv->preview);
    else
        message_list_copy(emfv->list, FALSE);
}

static void
emfv_edit_paste(BonoboUIComponent *uid, void *data, const char *path)
{
    EMFolderView *emfv = data;

    message_list_paste(emfv->list);
}

static void
emp_uri_popup_vfolder_sender(EPopup *ep, EPopupItem *pitem, void *data)
{
    EMFolderView *emfv = data;
    EMPopupTargetURI *t = (EMPopupTargetURI *)ep->target;
    CamelURL *url;
    CamelInternetAddress *addr;

    url = camel_url_new(t->uri, NULL);
    if (url == NULL) {
        g_warning("cannot parse url '%s'", t->uri);
        return;
    }

    if (url->path && url->path[0]) {
        /* ensures vfolder is running */
        vfolder_load_storage ();

        addr = camel_internet_address_new ();
        camel_address_decode (CAMEL_ADDRESS (addr), url->path);
        vfolder_gui_add_from_address (addr, AUTO_FROM, emfv->folder_uri);
        camel_object_unref (addr);
    }

    camel_url_free(url);

}


static void
emp_uri_popup_vfolder_recipient(EPopup *ep, EPopupItem *pitem, void *data)
{
    EMFolderView *emfv = data;
    EMPopupTargetURI *t = (EMPopupTargetURI *)ep->target;
    CamelURL *url;
    CamelInternetAddress *addr;

    url = camel_url_new(t->uri, NULL);
    if (url == NULL) {
        g_warning("cannot parse url '%s'", t->uri);
        return;
    }

    if (url->path && url->path[0]) {
        /* ensures vfolder is running */
        vfolder_load_storage ();

        addr = camel_internet_address_new ();
        camel_address_decode (CAMEL_ADDRESS (addr), url->path);
        vfolder_gui_add_from_address (addr, AUTO_TO, emfv->folder_uri);
        camel_object_unref (addr);
    }

    camel_url_free(url);
}

/* ********************************************************************** */

static BonoboUIVerb emfv_message_verbs[] = {
    BONOBO_UI_UNSAFE_VERB ("EditCut", emfv_edit_cut),
    BONOBO_UI_UNSAFE_VERB ("EditCopy", emfv_edit_copy),
    BONOBO_UI_UNSAFE_VERB ("EditPaste", emfv_edit_paste),

//  BONOBO_UI_UNSAFE_VERB ("SelectAllText", emfv_select_all_text),

//  BONOBO_UI_UNSAFE_VERB ("MessageDelete", emfv_message_delete),
//  BONOBO_UI_UNSAFE_VERB ("MessageDeleteKey", emfv_message_delete),
//  BONOBO_UI_UNSAFE_VERB ("MessageOpen", emfv_message_open),
//  BONOBO_UI_UNSAFE_VERB ("MessageSearch", emfv_message_search),

//  BONOBO_UI_UNSAFE_VERB ("ViewSource", emfv_message_source),

    BONOBO_UI_VERB_END
};

static void
emfv_activate(EMFolderView *emfv, BonoboUIComponent *uic, int act)
{

    if (act) {
        em_format_mode_t style;
        gboolean state;
        GSList *l;

        emfv->uic = uic;

        for (l = emfv->ui_files;l;l = l->next)
            bonobo_ui_util_set_ui(uic, PREFIX, (char *)l->data, emfv->ui_app_name, NULL);

        bonobo_ui_component_add_verb_list_with_data(uic, emfv_message_verbs, emfv);
        /* must do plugin menu's after main ones because of bonobo bustedness */
        if (emfv->menu)
            e_menu_activate((EMenu *)emfv->menu, uic, act);

//      state = emfv->preview->caret_mode;
//      bonobo_ui_component_set_prop(uic, "/commands/CaretMode", "state", state?"1":"0", NULL);
//      bonobo_ui_component_add_listener(uic, "CaretMode", emfv_caret_mode, emfv);

//      style = ((EMFormat *)emfv->preview)->mode?EM_FORMAT_ALLHEADERS:EM_FORMAT_NORMAL;
//      if (style)
//          bonobo_ui_component_set_prop(uic, "/commands/ViewFullHeaders", "state", "1", NULL);
//      bonobo_ui_component_add_listener(uic, "ViewFullHeaders", emfv_view_mode, emfv);
//      em_format_set_mode((EMFormat *)emfv->preview, style);

        if (emfv->folder)
            bonobo_ui_component_set_prop(uic, "/commands/MessageEdit", "sensitive", "0", NULL);

//      /* default charset used in mail view */
//      e_charset_picker_bonobo_ui_populate (uic, "/menu/View", _("Default"), emfv_charset_changed, emfv);

        emfv_enable_menus(emfv);
        if (emfv->statusbar_active)
            bonobo_ui_component_set_translate (uic, "/", "<status><item name=\"main\"/></status>", NULL);

        /* We need to set this up to get the right view options for the message-list, even if we're not showing it */
        if (emfv->folder)
            emfv_setup_view_instance(emfv);
    } else {
        const BonoboUIVerb *v;

        if (emfv->menu)
            e_menu_activate((EMenu *)emfv->menu, uic, act);

        /* TODO: Should this just rm /? */
        for (v = &emfv_message_verbs[0]; v->cname; v++)
            bonobo_ui_component_remove_verb(uic, v->cname);

        if (emfv->folder)
            mail_sync_folder(emfv->folder, NULL, NULL);

        emfv->uic = NULL;
    }
}

EMPopupTargetSelect *
em_folder_view_get_popup_target(EMFolderView *emfv, EMPopup *emp, int on_display)
{
    EMPopupTargetSelect *t;

    t = em_popup_target_new_select(emp, emfv->folder, emfv->folder_uri, message_list_get_selected(emfv->list));
    t->target.widget = (GtkWidget *)emfv;

    if (emfv->list->threaded)
        t->target.mask &= ~EM_FOLDER_VIEW_SELECT_THREADED;

    if (message_list_hidden(emfv->list) != 0)
        t->target.mask &= ~EM_FOLDER_VIEW_SELECT_HIDDEN;

    if (message_list_can_select(emfv->list, MESSAGE_LIST_SELECT_NEXT, 0, 0))
        t->target.mask &= ~EM_FOLDER_VIEW_SELECT_NEXT_MSG;

    if (message_list_can_select(emfv->list, MESSAGE_LIST_SELECT_PREVIOUS, 0, 0))
        t->target.mask &= ~EM_FOLDER_VIEW_SELECT_PREV_MSG;

    if (on_display)
        t->target.mask &= ~EM_FOLDER_VIEW_SELECT_DISPLAY;
    else
        t->target.mask &= ~EM_FOLDER_VIEW_SELECT_LISTONLY;

    if (gtk_html_command (((EMFormatHTML *)emfv->preview)->html, "is-selection-active"))
        t->target.mask &= ~EM_FOLDER_VIEW_SELECT_SELECTION;
    else
        t->target.mask &= ~EM_FOLDER_VIEW_SELECT_NOSELECTION;

    if (emfv->preview_active)
        t->target.mask &= ~EM_FOLDER_VIEW_PREVIEW_PRESENT;

    /* See bug 352980 */
    /* See bug #54770 */
    /* if (!emfv->hide_deleted)
        t->target.mask &= ~EM_POPUP_SELECT_DELETE;*/

    return t;
}

void
em_folder_view_set_hide_deleted(EMFolderView *emfv, gboolean status)
{
    if (emfv->folder && (emfv->folder->folder_flags & CAMEL_FOLDER_IS_TRASH))
        status = FALSE;

    emfv->hide_deleted = status;

    if (emfv->folder) {
        message_list_set_hidedeleted(emfv->list, status);
        g_signal_emit(emfv, signals[EMFV_CHANGED], 0);
    }
}

/* ********************************************************************** */

struct mst_t {
    EMFolderView *emfv;
    char *uid;
};

static void
mst_free (struct mst_t *mst)
{
    mst->emfv->list->seen_id = 0;

    g_free (mst->uid);
    g_free (mst);
}

static int
do_mark_seen (gpointer user_data)
{
    struct mst_t *mst = user_data;
    EMFolderView *emfv = mst->emfv;
    MessageList *list = emfv->list;

    if (mst->uid && list->cursor_uid && !strcmp (mst->uid, list->cursor_uid))
        emfv_set_seen (emfv, mst->uid);

    return FALSE;
}

static void
emfv_list_done_message_selected(CamelFolder *folder, const char *uid, CamelMimeMessage *msg, void *data, CamelException *ex)
{
    EMFolderView *emfv = data;
    EMEvent *eme;
    EMEventTargetMessage *target;
    EShell *shell;

    if (emfv->preview == NULL) {
        emfv->priv->nomarkseen = FALSE;
        emfv_enable_menus(emfv);
        g_object_unref (emfv);
        return;

    }

    e_profile_event_emit("goto.loaded", emfv->displayed_uid, 0);

    shell = e_shell_module_get_shell (mail_shell_module);
    e_shell_event (shell, "mail-icon", "evolution-mail");

    /** @Event: message.reading
     * @Title: Viewing a message
     * @Target: EMEventTargetMessage
     *
     * message.reading is emitted whenever a user views a message.
     */
    /* TODO: do we emit a message.reading with no message when we're looking at nothing or don't care? */
    eme = em_event_peek();
    target = em_event_target_new_message(eme, folder, msg, uid, 0);
    e_event_emit((EEvent *)eme, "message.reading", (EEventTarget *)target);

    em_format_format((EMFormat *)emfv->preview, folder, uid, msg);

    if (emfv->list->seen_id)
        g_source_remove(emfv->list->seen_id);

    if (msg && emfv->mark_seen && !emfv->priv->nomarkseen) {
        if (emfv->mark_seen_timeout > 0) {
            struct mst_t *mst;

            mst = g_new (struct mst_t, 1);
            mst->emfv = emfv;
            mst->uid = g_strdup (uid);

            emfv->list->seen_id = g_timeout_add_full(G_PRIORITY_DEFAULT_IDLE, emfv->mark_seen_timeout,
                                 (GSourceFunc)do_mark_seen, mst, (GDestroyNotify)mst_free);
        } else {
            emfv_set_seen (emfv, uid);
        }
    } else if (camel_exception_is_set(ex)) {
        GtkHTMLStream *hstream = gtk_html_begin(((EMFormatHTML *)emfv->preview)->html);

        /* Display the error inline rather than popping up an annoying box.
           We also clear the exception, this stops the box popping up */

        gtk_html_stream_printf(hstream, "<h2>%s</h2><p>%s</p>",
                       _("Unable to retrieve message"),
                       ex->desc);
        gtk_html_stream_close(hstream, GTK_HTML_STREAM_OK);
        camel_exception_clear(ex);
    }

    emfv->priv->nomarkseen = FALSE;
    emfv_enable_menus(emfv);
    g_object_unref (emfv);
}


static gboolean
emfv_spin(EMFormatHTML *efh, GtkHTMLEmbedded *eb, EMFormatHTMLPObject *pobject)
{
    GtkWidget *ep;

    if (!strcmp(eb->classid, "spinner")) {
        GtkWidget *box, *label;
        gchar *msg = g_strdup_printf("<b>%s</b>", _("Retrieving Message..."));

        label = gtk_label_new (NULL);
        gtk_label_set_markup ((GtkLabel *)label, msg);
        box = gtk_hbox_new (FALSE, 0);
        g_free (msg);

        ep = e_spinner_new_spinning_small_shown ();
        gtk_box_pack_start ((GtkBox *)box, ep, FALSE, FALSE, 0);
        gtk_box_pack_start ((GtkBox *)box, label, FALSE, FALSE, 0);

        gtk_container_add ((GtkContainer *)eb, box);
        gtk_widget_show_all ((GtkWidget *)eb);

        g_signal_handlers_disconnect_by_func(efh, emfv_spin, NULL);
    }

    return TRUE;
}

static gboolean
emfv_message_selected_timeout(void *data)
{
    EMFolderView *emfv = data;

    if (emfv->priv->selected_uid) {
        if (emfv->displayed_uid == NULL || strcmp(emfv->displayed_uid, emfv->priv->selected_uid) != 0) {
            /*GtkHTMLStream *hstream;*/

            g_free(emfv->displayed_uid);
            emfv->displayed_uid = emfv->priv->selected_uid;
            emfv->priv->selected_uid = NULL;
            g_object_ref (emfv);
            /* TODO: we should manage our own thread stuff, would make cancelling outstanding stuff easier */
            e_profile_event_emit("goto.load", emfv->displayed_uid, 0);
/*          hstream = gtk_html_begin(((EMFormatHTML *)emfv->preview)->html);

            g_signal_connect(((EMFormatHTML *)emfv->preview)->html, "object_requested", G_CALLBACK(emfv_spin), NULL);

            gtk_html_stream_printf(hstream, "<object classid=\"spinner\"><h2>%s</h2><p>%s</p></object>",
                               _("Retrieving Message"),
                               emfv->displayed_uid);
            gtk_html_stream_close(hstream, GTK_HTML_STREAM_OK);
*/
            mail_get_messagex(emfv->folder, emfv->displayed_uid, emfv_list_done_message_selected, emfv, mail_msg_fast_ordered_push);
        } else {
            e_profile_event_emit("goto.empty", "", 0);
            g_free(emfv->priv->selected_uid);
            emfv->priv->selected_uid = NULL;
        }
    } else {
        e_profile_event_emit("goto.empty", "", 0);
        g_free(emfv->displayed_uid);
        emfv->displayed_uid = NULL;
        em_format_format((EMFormat *)emfv->preview, NULL, NULL, NULL);
        emfv->priv->nomarkseen = FALSE;
    }

    emfv->priv->selected_id = 0;

    return FALSE;
}

static gboolean
emfv_popup_menu (GtkWidget *widget)
{
    gboolean ret = FALSE;
    EMFolderView *emfv = (EMFolderView *)widget;

    /* Try to bring up menu for preview html object.
       Currently we cannot directly connect to html's "popup_menu" signal
       since it doesn't work.
    */

    if (GTK_WIDGET_HAS_FOCUS (emfv->preview->formathtml.html))
        ret = em_format_html_display_popup_menu (emfv->preview);

    if (!ret)
        emfv_popup (emfv, NULL, FALSE);

    return TRUE;
}

static void
emp_uri_popup_link_copy(EPopup *ep, EPopupItem *pitem, void *data)
{
    EMFolderView *emfv = data;
    struct _EMFolderViewPrivate *p = emfv->priv;

    g_free(p->selection_uri);
    p->selection_uri = em_utils_url_unescape_amp(pitem->user_data);

    gtk_selection_owner_set(p->invisible, GDK_SELECTION_PRIMARY, gtk_get_current_event_time());
    gtk_selection_owner_set(p->invisible, GDK_SELECTION_CLIPBOARD, gtk_get_current_event_time());
}

static EPopupItem emfv_uri_popups[] = {
    { E_POPUP_ITEM, "00.uri.11", N_("C_all To..."), emp_uri_popup_link_copy, NULL, NULL, EM_POPUP_URI_CALLTO },
    { E_POPUP_ITEM, "00.uri.15", N_("_Copy Link Location"), emp_uri_popup_link_copy, NULL, "edit-copy", EM_POPUP_URI_NOT_MAILTO },

    { E_POPUP_SUBMENU, "99.uri.00", N_("Create _Search Folder"), NULL, NULL, NULL, EM_POPUP_URI_MAILTO },
    { E_POPUP_ITEM, "99.uri.00/00.10", N_("_From this Address"), emp_uri_popup_vfolder_sender, NULL, NULL, EM_POPUP_URI_MAILTO },
    { E_POPUP_ITEM, "99.uri.00/00.00", N_("_To this Address"), emp_uri_popup_vfolder_recipient, NULL, NULL, EM_POPUP_URI_MAILTO },
};

static void
emfv_uri_popup_free(EPopup *ep, GSList *list, void *data)
{
    while (list) {
        GSList *n = list->next;
        struct _EPopupItem *item = list->data;

        g_free(item->user_data);
        item->user_data = NULL;
        g_free (item);
        g_slist_free_1(list);

        list = n;
    }
}

static void
emfv_free_em_popup (gpointer emp)
{
    EPopup *ep = (EPopup *)emp;

    if (!ep)
        return;

    if (ep->target) {
        /* without this the next unref on ep does nothing */
        e_popup_target_free (ep, ep->target);
        ep->target = NULL;
    }

    g_object_unref (ep);
}

static GtkMenu *
emfv_append_menu (EMPopup *des_emp, GtkMenu *des_menu, EMPopup *src_emp, GtkMenu *src_menu)
{
    GtkWidget *separator;
    GList *children, *p;
    char *name;

    if (!src_menu)
        return des_menu;

    if (!des_menu)
        return src_menu;

    separator = gtk_separator_menu_item_new ();
    gtk_widget_show (separator);
    gtk_menu_shell_append (GTK_MENU_SHELL (des_menu), separator);

    children = gtk_container_get_children (GTK_CONTAINER (src_menu));
    for (p = children; p; p = p->next) {
        g_object_ref (p->data);
        gtk_container_remove (GTK_CONTAINER (src_menu), p->data);
        gtk_menu_shell_append (GTK_MENU_SHELL (des_menu), p->data);
        g_object_unref (p->data);
    }

    g_list_free (children);
    gtk_widget_destroy (GTK_WIDGET (src_menu));

    /* free src_emp together with des_emp; name contains unique identifier */
    name = g_strdup_printf ("emp_%p", src_emp);
    g_object_set_data_full (G_OBJECT (des_emp), name, src_emp, emfv_free_em_popup);
    g_free (name);

    return des_menu;
}

static int
emfv_format_popup_event(EMFormatHTMLDisplay *efhd, GdkEventButton *event, const char *uri, CamelMimePart *part, EMFolderView *emfv)
{
    GtkMenu *menu = NULL;
    EMPopup *main_emp = NULL;

    if (uri == NULL && part == NULL) {
        /* So we don't try and popup with nothing selected - rather odd result! */
        GPtrArray *uids = message_list_get_selected(emfv->list);
        int doit = uids->len > 0;

        message_list_free_uids(emfv->list, uids);
        if (doit)
            emfv_popup(emfv, (GdkEvent *)event, TRUE);
        return doit;
    }

    /* FIXME: this maybe should just fit on em-html-display, it has access to the
       snooped part type */

    /** @HookPoint-EMPopup: Inline URI Context Menu
     * @Id: org.gnome.evolution.mail.folderview.popup
     * @Class: org.gnome.evolution.mail.popup:1.0
     * @Target: EMPopupTargetURI
     *
     * This is the context menu shown when clicking on inline URIs,
     * including addresses or normal HTML links that are displayed inside
     * the message view.
     */

    /** @HookPoint-EMPopup: Inline Object Context Menu
     * @Id: org.gnome.evolution.mail.folderview.popup
     * @Class: org.gnome.evolution.mail.popup:1.0
     * @Target: EMPopupTargetPart
     *
     * This is the context menu shown when clicking on inline
     * content such as a picture.
     */

    if (uri) {
        gboolean have_more_uris = strchr (uri, '\n') != NULL;
        const char *act, *next;

        for (act = uri; act; act = next) {
            char *u;
            next = strchr (act, '\n');
            if (next) {
                u = g_strndup (act, next - act);
                next++;
            } else
                u = g_strdup (act);

            if (u && *u) {
                GSList *menus = NULL;
                int i;
                EMPopupTargetURI *t;
                EMPopup *emp;
                EPopupTarget *target;
                GtkMenu *mymenu;

                emp = em_popup_new ("org.gnome.evolution.mail.folderview.popup");
                t = em_popup_target_new_uri(emp, u);
                target = (EPopupTarget *)t;

                for (i = 0; i < sizeof (emfv_uri_popups)/sizeof (emfv_uri_popups[0]); i++) {
                    EPopupItem *itm = g_malloc0 (sizeof (EPopupItem));

                    memcpy (itm, &emfv_uri_popups[i], sizeof (EPopupItem));
                    itm->user_data = g_strdup (t->uri);
                    menus = g_slist_prepend (menus, itm);
                }
                e_popup_add_items ((EPopup *)emp, menus, NULL, emfv_uri_popup_free, emfv);
                mymenu = e_popup_create_menu_once ((EPopup *)emp, target, 0);

                if (have_more_uris) {
                    GtkWidget *item;

                    if (strlen (u) > 100) {
                        GString *str;
                        char *c;

                        /* the url should be in the form of http://a.b.c/... and we want to
                           see where the image comes from, so skip first 10 characters and
                           find the first '/' there */
                        c = strchr (u + 10, '/');
                        if (!c)
                            str = g_string_new_len (u, 40);
                        else
                            str = g_string_new_len (u, MAX (c - u + 1, 40));

                        g_string_append (str, "...");
                        g_string_append (str, u + strlen (u) - 40);

                        item = gtk_menu_item_new_with_label (str->str);

                        g_string_free (str, TRUE);
                    } else
                        item = gtk_menu_item_new_with_label (u);

                    gtk_widget_set_sensitive (item, FALSE);
                    gtk_widget_show (item);
                    gtk_menu_shell_insert (GTK_MENU_SHELL (mymenu), item, 0);
                }

                menu = emfv_append_menu (main_emp, menu, emp, mymenu);
                if (!main_emp)
                    main_emp = emp;
            }

            g_free (u);
        }
    }

    if (part) {
        EMPopup *emp;
        EPopupTarget *target;

        emp = em_popup_new ("org.gnome.evolution.mail.folderview.popup");
        target = (EPopupTarget *)em_popup_target_new_part(emp, part, NULL);

        menu = emfv_append_menu (main_emp, menu, emp, e_popup_create_menu_once ((EPopup *)emp, target, 0));
        if (!main_emp)
            main_emp = emp;
    }
    
    if (event == NULL)
        gtk_menu_popup (menu, NULL, NULL, NULL, NULL, 0, gtk_get_current_event_time());
    else
        gtk_menu_popup (menu, NULL, NULL, NULL, NULL, event->button, event->time);

    return TRUE;
}

static void
emfv_set_seen(EMFolderView *emfv, const char *uid)
{
    guint32 old_flags = camel_folder_get_message_flags(emfv->folder, uid);

    /* If we're setting the SEEN flag on a message, handle receipt requests */
    if (!(old_flags & CAMEL_MESSAGE_SEEN))
        em_utils_handle_receipt(emfv->folder, uid, (CamelMimeMessage *)((EMFormat *)emfv->preview)->message);

    camel_folder_set_message_flags(emfv->folder, uid, CAMEL_MESSAGE_SEEN, CAMEL_MESSAGE_SEEN);
}

/* keep these two tables in sync */
enum {
    EMFV_CHARSET = 1,
    EMFV_HEADERS,
    EMFV_SHOW_DELETED,
    EMFV_SETTINGS       /* last, for loop count */
};

/* IF these get too long, update key field */
static const char * const emfv_display_keys[] = {
    "charset",
    "headers",
    "show_deleted",
};

static GHashTable *emfv_setting_key;

static void
emfv_setting_notify(GConfClient *gconf, guint cnxn_id, GConfEntry *entry, EMFolderView *emfv)
{
    GConfValue *value;
    char *tkey;

    g_return_if_fail (gconf_entry_get_key (entry) != NULL);

    if (!(value = gconf_entry_get_value (entry)))
        return;

    tkey = strrchr(entry->key, '/');
    g_return_if_fail (tkey != NULL);

    switch(GPOINTER_TO_INT(g_hash_table_lookup(emfv_setting_key, tkey+1))) {
    case EMFV_CHARSET:
        em_format_set_default_charset((EMFormat *)emfv->preview, gconf_value_get_string (value));
        break;
    case EMFV_HEADERS: {
        GSList *header_config_list, *p;
        EMFormat *emf = (EMFormat *)emfv->preview;

        header_config_list = gconf_client_get_list(gconf, "/apps/evolution/mail/display/headers", GCONF_VALUE_STRING, NULL);
            em_format_clear_headers((EMFormat *)emfv->preview);
        p = header_config_list;
        while (p) {
            EMMailerPrefsHeader *h;
            char *xml = (char *)p->data;

            h = em_mailer_prefs_header_from_xml(xml);
            if (h && h->enabled) {
                em_format_add_header(emf, h->name, EM_FORMAT_HEADER_BOLD);
            }
            em_mailer_prefs_header_free(h);
            p = g_slist_next(p);
        }
        g_slist_foreach(header_config_list, (GFunc) g_free, NULL);
        g_slist_free(header_config_list);
        /* force a redraw */
        if (emf->message)
            em_format_redraw(emf);
        break; }
    case EMFV_SHOW_DELETED: {
        gboolean state;

        state = gconf_value_get_bool (value);
        em_folder_view_set_hide_deleted (emfv, !state);
        /* Set the prop only if the component has already been
         * activated. */
        if (emfv->uic)
            bonobo_ui_component_set_prop (emfv->uic, "/commands/HideDeleted", "state", state ? "0" : "1", NULL);
        break; }
    }
}