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path: root/mail/mail-signature-editor.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:
 *      Radek Doulik <rodo@ximian.com>
 *      Jeffrey Stedfast <fejj@ximian.com>
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 *
 */

#include "mail-signature-editor.h"

#include <string.h>
#include <glib/gi18n.h>

#include <e-util/e-error.h>
#include <e-util/e-signature-list.h>
#include <composer/e-msg-composer.h>

#include "mail-config.h"

#define E_SIGNATURE_EDITOR_GET_PRIVATE(obj) \
    (G_TYPE_INSTANCE_GET_PRIVATE \
    ((obj), E_TYPE_SIGNATURE_EDITOR, ESignatureEditorPrivate))

enum {
    PROP_0,
    PROP_SIGNATURE
};

struct _ESignatureEditorPrivate {
    GtkActionGroup *action_group;
    ESignature *signature;
    GtkWidget *entry;
    gchar *original_name;
};

static const gchar *ui =
"<ui>\n"
"  <menubar name='main-menu'>\n"
"    <placeholder name='pre-edit-menu'>\n"
"      <menu action='file-menu'>\n"
"        <menuitem action='save-and-close'/>\n"
"        <separator/>"
"        <menuitem action='close'/>\n"
"      </menu>\n"
"    </placeholder>\n"
"  </menubar>\n"
"  <toolbar name='main-toolbar'>\n"
"    <placeholder name='pre-main-toolbar'>\n"
"      <toolitem action='save-and-close'/>\n"
"    </placeholder>\n"
"  </toolbar>\n"
"</ui>";

static gpointer parent_class = NULL;

static void
handle_error (GError **error)
{
    if (*error != NULL) {
        g_warning ("%s", (*error)->message);
        g_clear_error (error);
    }
}

static void
action_close_cb (GtkAction *action,
                 ESignatureEditor *editor)
{
    gboolean something_changed = FALSE;
    const gchar *original_name;
    const gchar *signature_name;

    original_name = editor->priv->original_name;
    signature_name = gtk_entry_get_text (GTK_ENTRY (editor->priv->entry));

    something_changed |= gtkhtml_editor_has_undo (GTKHTML_EDITOR (editor));
    something_changed |= (strcmp (signature_name, original_name) != 0);

    if (something_changed) {
        gint response;

        response = e_error_run (
            GTK_WINDOW (editor),
            "mail:ask-signature-changed", NULL);
        if (response == GTK_RESPONSE_YES) {
            GtkActionGroup *action_group;

            action_group = editor->priv->action_group;
            action = gtk_action_group_get_action (
                action_group, "save-and-close");
            gtk_action_activate (action);
            return;
        } else if (response == GTK_RESPONSE_CANCEL)
            return;
    }

    gtk_widget_destroy (GTK_WIDGET (editor));
}

static void
action_save_and_close_cb (GtkAction *action,
                          ESignatureEditor *editor)
{
    GtkWidget *entry;
    ESignatureList *signature_list;
    ESignature *signature;
    ESignature *same_name;
    const gchar *filename;
    gchar *signature_name;
    gboolean html;
    GError *error = NULL;

    entry = editor->priv->entry;
    html = gtkhtml_editor_get_html_mode (GTKHTML_EDITOR (editor));

    if (editor->priv->signature == NULL)
        signature = mail_config_signature_new (NULL, FALSE, html);
    else {
        signature = g_object_ref (editor->priv->signature);
        signature->html = html;
    }

    filename = signature->filename;
    gtkhtml_editor_save (GTKHTML_EDITOR (editor), filename, html, &error);

    if (error != NULL) {
        e_error_run (
            GTK_WINDOW (editor),
            "mail:no-save-signature",
            error->message, NULL);
        g_clear_error (&error);
        return;
    }

    signature_list = mail_config_get_signatures ();

    signature_name = g_strdup (gtk_entry_get_text (GTK_ENTRY (entry)));
    g_strstrip (signature_name);

    /* Make sure the signature name is not blank. */
    if (*signature_name == '\0') {
        e_error_run (
            GTK_WINDOW (editor),
            "mail:blank-signature", NULL);
        gtk_widget_grab_focus (entry);
        g_free (signature_name);
        return;
    }

    /* Don't overwrite an existing signature of the same name.
     * XXX ESignatureList misuses const. */
    same_name = (ESignature *) e_signature_list_find (
        signature_list, E_SIGNATURE_FIND_NAME, signature_name);
    if (same_name != NULL && strcmp (signature->uid, same_name->uid) != 0) {
        e_error_run (
            GTK_WINDOW (editor),
            "mail:signature-already-exists",
            signature_name, NULL);
        gtk_widget_grab_focus (entry);
        g_free (signature_name);
        return;
    }

    g_free (signature->name);
    signature->name = signature_name;

    if (editor->priv->signature != NULL)
        e_signature_list_change (signature_list, signature);
    else
        mail_config_add_signature (signature);

    gtk_widget_destroy (GTK_WIDGET (editor));
}

static GtkActionEntry entries[] = {

    { "close",
      GTK_STOCK_CLOSE,
      N_("_Close"),
      "<Control>w",
      NULL,
      G_CALLBACK (action_close_cb) },

    { "save-and-close",
      GTK_STOCK_SAVE,
      N_("_Save and Close"),
      "<Control>Return",
      NULL,
      G_CALLBACK (action_save_and_close_cb) },

    { "file-menu",
      NULL,
      N_("_File"),
      NULL,
      NULL,
      NULL }
};

static gboolean
signature_editor_delete_event_cb (ESignatureEditor *editor,
                                  GdkEvent *event)
{
    GtkActionGroup *action_group;
    GtkAction *action;

    action_group = editor->priv->action_group;
    action = gtk_action_group_get_action (action_group, "close");
    gtk_action_activate (action);

    return TRUE;
}

static void
signature_editor_set_property (GObject *object,
                               guint property_id,
                               const GValue *value,
                               GParamSpec *pspec)
{
    switch (property_id) {
        case PROP_SIGNATURE:
            e_signature_editor_set_signature (
                E_SIGNATURE_EDITOR (object),
                g_value_get_object (value));
            return;
    }

    G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}

static void
signature_editor_get_property (GObject *object,
                               guint property_id,
                               GValue *value,
                               GParamSpec *pspec)
{
    switch (property_id) {
        case PROP_SIGNATURE:
            g_value_set_object (
                value, e_signature_editor_get_signature (
                E_SIGNATURE_EDITOR (object)));
            return;
    }

    G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}

static void
signature_editor_dispose (GObject *object)
{
    ESignatureEditorPrivate *priv;

    priv = E_SIGNATURE_EDITOR_GET_PRIVATE (object);

    if (priv->action_group != NULL) {
        g_object_unref (priv->action_group);
        priv->action_group = NULL;
    }

    if (priv->signature != NULL) {
        g_object_unref (priv->signature);
        priv->signature = NULL;
    }

    if (priv->entry != NULL) {
        g_object_unref (priv->entry);
        priv->entry = NULL;
    }

    /* Chain up to parent's dispose() method. */
    G_OBJECT_CLASS (parent_class)->dispose (object);
}

static void
signature_editor_finalize (GObject *object)
{
    ESignatureEditorPrivate *priv;

    priv = E_SIGNATURE_EDITOR_GET_PRIVATE (object);

    g_free (priv->original_name);

    /* Chain up to parent's finalize() method. */
    G_OBJECT_CLASS (parent_class)->finalize (object);
}

static void
signature_editor_class_init (ESignatureEditorClass *class)
{
    GObjectClass *object_class;

    parent_class = g_type_class_peek_parent (class);
    g_type_class_add_private (class, sizeof (ESignatureEditorPrivate));

    object_class = G_OBJECT_CLASS (class);
    object_class->set_property = signature_editor_set_property;
    object_class->get_property = signature_editor_get_property;
    object_class->dispose = signature_editor_dispose;
    object_class->finalize = signature_editor_finalize;

    g_object_class_install_property (
        object_class,
        PROP_SIGNATURE,
        g_param_spec_object (
            "signature",
            NULL,
            NULL,
            E_TYPE_SIGNATURE,
            G_PARAM_READWRITE));
}

static void
signature_editor_init (ESignatureEditor *editor)
{
    GtkActionGroup *action_group;
    GtkUIManager *ui_manager;
    GtkWidget *container;
    GtkWidget *widget;
    GtkWidget *vbox;
    GError *error = NULL;

    editor->priv = E_SIGNATURE_EDITOR_GET_PRIVATE (editor);
    vbox = GTKHTML_EDITOR (editor)->vbox;

    ui_manager = gtkhtml_editor_get_ui_manager (GTKHTML_EDITOR (editor));

    gtk_ui_manager_add_ui_from_string (ui_manager, ui, -1, &error);
    handle_error (&error);

    action_group = gtk_action_group_new ("signature");
    gtk_action_group_set_translation_domain (
        action_group, GETTEXT_PACKAGE);
    gtk_action_group_add_actions (
        action_group, entries,
        G_N_ELEMENTS (entries), editor);
    gtk_ui_manager_insert_action_group (ui_manager, action_group, 0);
    editor->priv->action_group = g_object_ref (action_group);

    gtk_ui_manager_ensure_update (ui_manager);

    gtk_window_set_title (GTK_WINDOW (editor), _("Edit Signature"));

    widget = gtk_hbox_new (FALSE, 6);
    gtk_container_set_border_width (GTK_CONTAINER (widget), 6);
    gtk_box_pack_start (GTK_BOX (vbox), widget, FALSE, FALSE, 0);
    /* Position 2 should be between the main and style toolbars. */
    gtk_box_reorder_child (GTK_BOX (vbox), widget, 2);
    gtk_widget_show (widget);
    container = widget;

    widget = gtk_entry_new ();
    gtk_box_pack_end (GTK_BOX (container), widget, TRUE, TRUE, 0);
    editor->priv->entry = g_object_ref_sink (widget);
    gtk_widget_show (widget);

    widget = gtk_label_new_with_mnemonic (_("_Signature Name:"));
    gtk_label_set_mnemonic_widget (GTK_LABEL (widget), editor->priv->entry);
    gtk_box_pack_end (GTK_BOX (container), widget, FALSE, FALSE, 0);
    gtk_widget_show (widget);

    g_signal_connect (
        editor, "delete-event",
        G_CALLBACK (signature_editor_delete_event_cb), NULL);

    e_signature_editor_set_signature (editor, NULL);
}

GType
e_signature_editor_get_type (void)
{
    static GType type = 0;

    if (G_UNLIKELY (type == 0)) {
        static const GTypeInfo type_info = {
            sizeof (ESignatureEditorClass),
            (GBaseInitFunc) NULL,
            (GBaseFinalizeFunc) NULL,
            (GClassInitFunc) signature_editor_class_init,
            (GClassFinalizeFunc) NULL,
            NULL,  /* class_data */
            sizeof (ESignatureEditor),
            0,     /* n_preallocs */
            (GInstanceInitFunc) signature_editor_init,
            NULL   /* value_table */
        };

        type = g_type_register_static (
            GTKHTML_TYPE_EDITOR, "ESignatureEditor",
            &type_info, 0);
    }

    return type;
}

GtkWidget *
e_signature_editor_new (void)
{
    return g_object_new (E_TYPE_SIGNATURE_EDITOR, NULL);
}

ESignature *
e_signature_editor_get_signature (ESignatureEditor *editor)
{
    g_return_val_if_fail (E_IS_SIGNATURE_EDITOR (editor), NULL);

    return editor->priv->signature;
}

void
e_signature_editor_set_signature (ESignatureEditor *editor,
                                  ESignature *signature)
{
    const gchar *filename;
    const gchar *signature_name;
    gchar *contents;
    gsize length;
    GError *error = NULL;

    g_return_if_fail (E_IS_SIGNATURE_EDITOR (editor));

    if (signature != NULL)
        g_return_if_fail (E_SIGNATURE (signature));

    if (editor->priv->signature != NULL) {
        g_object_unref (editor->priv->signature);
        editor->priv->signature = NULL;
    }

    if (signature == NULL)
        goto exit;

    editor->priv->signature = g_object_ref (signature);

    /* Load signature content. */

    filename = signature->filename;

    if (signature->html)
        g_file_get_contents (filename, &contents, &length, &error);
    else {
        gchar *data;

        data = e_msg_composer_get_sig_file_content (filename, FALSE);
        contents = g_strdup_printf ("<PRE>\n%s", data);
        length = -1;
        g_free (data);
    }

    if (error == NULL) {
        gtkhtml_editor_set_html_mode (
            GTKHTML_EDITOR (editor), signature->html);
        gtkhtml_editor_set_text_html (
            GTKHTML_EDITOR (editor), contents, length);
        g_free (contents);
    } else {
        g_warning ("%s", error->message);
        g_error_free (error);
    }

exit:
    if (signature != NULL)
        signature_name = signature->name;
    else
        signature_name = _("Unnamed");

    /* Set the entry text before we grab focus. */
    g_free (editor->priv->original_name);
    editor->priv->original_name = g_strdup (signature_name);
    gtk_entry_set_text (GTK_ENTRY (editor->priv->entry), signature_name);

    /* Set the focus appropriately.  If this is a new signature, draw
     * the user's attention to the signature name entry.  Otherwise go
     * straight to the editing area. */
    if (signature == NULL)
        gtk_widget_grab_focus (editor->priv->entry);
    else {
        GtkHTML *html;

        html = gtkhtml_editor_get_html (GTKHTML_EDITOR (editor));
        gtk_widget_grab_focus (GTK_WIDGET (html));
    }

    g_object_notify (G_OBJECT (editor), "signature");
}