path: root/widgets/misc/e-signature-script-dialog.c

/*
 * e-signature-script-dialog.c
 *
 * 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/>
 *
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 *
 */

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

#include "e-signature-script-dialog.h"

#include <glib/gi18n.h>

struct _ESignatureScriptDialogPrivate {
    GtkWidget *entry;
    GtkWidget *file_chooser;
    GtkWidget *alert;
};

enum {
    PROP_0,
    PROP_SCRIPT_FILE,
    PROP_SCRIPT_NAME
};

G_DEFINE_TYPE (
    ESignatureScriptDialog,
    e_signature_script_dialog,
    GTK_TYPE_DIALOG)

static gboolean
signature_script_dialog_filter_cb (const GtkFileFilterInfo *filter_info)
{
    const gchar *filename = filter_info->filename;

    return g_file_test (filename, G_FILE_TEST_IS_EXECUTABLE);
}

static void
signature_script_dialog_update_status (ESignatureScriptDialog *dialog)
{
    GFile *script_file;
    const gchar *script_name;
    gboolean show_alert;
    gboolean sensitive;

    script_file = e_signature_script_dialog_get_script_file (dialog);
    script_name = e_signature_script_dialog_get_script_name (dialog);

    sensitive = (script_name != NULL && *script_name != '\0');

    if (script_file != NULL) {
        gboolean executable;
        gchar *filename;

        filename = g_file_get_path (script_file);
        executable = g_file_test (filename, G_FILE_TEST_IS_EXECUTABLE);
        g_free (filename);

        show_alert = !executable;
        sensitive &= executable;

        g_object_unref (script_file);
    } else {
        sensitive = FALSE;
        show_alert = FALSE;
    }

    if (show_alert)
        gtk_widget_show (dialog->priv->alert);
    else
        gtk_widget_hide (dialog->priv->alert);

    gtk_dialog_set_response_sensitive (
        GTK_DIALOG (dialog), GTK_RESPONSE_OK, sensitive);
}

static void
signature_script_dialog_set_property (GObject *object,
                                      guint property_id,
                                      const GValue *value,
                                      GParamSpec *pspec)
{
    switch (property_id) {
        case PROP_SCRIPT_FILE:
            e_signature_script_dialog_set_script_file (
                E_SIGNATURE_SCRIPT_DIALOG (object),
                g_value_get_object (value));
            return;

        case PROP_SCRIPT_NAME:
            e_signature_script_dialog_set_script_name (
                E_SIGNATURE_SCRIPT_DIALOG (object),
                g_value_get_string (value));
            return;
    }

    G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}

static void
signature_script_dialog_get_property (GObject *object,
                                      guint property_id,
                                      GValue *value,
                                      GParamSpec *pspec)
{
    switch (property_id) {
        case PROP_SCRIPT_FILE:
            g_value_set_object (
                value,
                e_signature_script_dialog_get_script_file (
                E_SIGNATURE_SCRIPT_DIALOG (object)));
            return;

        case PROP_SCRIPT_NAME:
            g_value_set_string (
                value,
                e_signature_script_dialog_get_script_name (
                E_SIGNATURE_SCRIPT_DIALOG (object)));
            return;
    }

    G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}

static void
signature_script_dialog_dispose (GObject *object)
{
    ESignatureScriptDialogPrivate *priv;

    priv = E_SIGNATURE_SCRIPT_DIALOG (object)->priv;

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

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

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

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

static void
signature_script_dialog_map (GtkWidget *widget)
{
    GtkWidget *action_area;
    GtkWidget *content_area;

    /* Chain up to parent's map() method. */
    GTK_WIDGET_CLASS (e_signature_script_dialog_parent_class)->map (widget);

    /* XXX Override GtkDialog's broken style property defaults. */
    action_area = gtk_dialog_get_action_area (GTK_DIALOG (widget));
    content_area = gtk_dialog_get_content_area (GTK_DIALOG (widget));

    gtk_box_set_spacing (GTK_BOX (content_area), 12);
    gtk_container_set_border_width (GTK_CONTAINER (action_area), 0);
    gtk_container_set_border_width (GTK_CONTAINER (content_area), 12);
}

static void
e_signature_script_dialog_class_init (ESignatureScriptDialogClass *class)
{
    GObjectClass *object_class;
    GtkWidgetClass *widget_class;

    g_type_class_add_private (class, sizeof (ESignatureScriptDialogPrivate));

    object_class = G_OBJECT_CLASS (class);
    object_class->set_property = signature_script_dialog_set_property;
    object_class->get_property = signature_script_dialog_get_property;
    object_class->dispose = signature_script_dialog_dispose;

    widget_class = GTK_WIDGET_CLASS (class);
    widget_class->map = signature_script_dialog_map;

    g_object_class_install_property (
        object_class,
        PROP_SCRIPT_FILE,
        g_param_spec_object (
            "script-file",
            "Script File",
            NULL,
            G_TYPE_FILE,
            G_PARAM_READWRITE));

    g_object_class_install_property (
        object_class,
        PROP_SCRIPT_NAME,
        g_param_spec_string (
            "script-name",
            "Script Name",
            NULL,
            _("Unnamed"),
            G_PARAM_READWRITE |
            G_PARAM_CONSTRUCT));
}

static void
e_signature_script_dialog_init (ESignatureScriptDialog *dialog)
{
    GtkFileFilter *filter;
    GtkWidget *content_area;
    GtkWidget *container;
    GtkWidget *widget;
    gchar *markup;

    dialog->priv = G_TYPE_INSTANCE_GET_PRIVATE (
        dialog, E_TYPE_SIGNATURE_SCRIPT_DIALOG,
        ESignatureScriptDialogPrivate);

    content_area = gtk_dialog_get_content_area (GTK_DIALOG (dialog));

    gtk_dialog_add_button (
        GTK_DIALOG (dialog),
        GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL);

    gtk_dialog_add_button (
        GTK_DIALOG (dialog),
        GTK_STOCK_SAVE, GTK_RESPONSE_OK);

    gtk_dialog_set_default_response (GTK_DIALOG (dialog), GTK_RESPONSE_OK);

    container = content_area;

    widget = gtk_table_new (4, 2, FALSE);
    gtk_table_set_col_spacings (GTK_TABLE (widget), 6);
    gtk_table_set_row_spacings (GTK_TABLE (widget), 6);
    gtk_table_set_row_spacing (GTK_TABLE (widget), 0, 12);
    gtk_box_pack_start (GTK_BOX (container), widget, FALSE, FALSE, 0);
    gtk_widget_show (widget);

    container = widget;

    widget = gtk_image_new_from_stock (
        GTK_STOCK_DIALOG_INFO, GTK_ICON_SIZE_DIALOG);
    gtk_table_attach (
        GTK_TABLE (container), widget,
        0, 1, 0, 1, 0, 0, 0, 0);
    gtk_widget_show (widget);

    widget = gtk_label_new (_(
        "The output of this script will be used as your\n"
        "signature. The name you specify will be used\n"
        "for display purposes only."));
    gtk_table_attach (
        GTK_TABLE (container), widget,
        1, 2, 0, 1, GTK_FILL | GTK_EXPAND, 0, 0, 0);
    gtk_widget_show (widget);

    widget = gtk_entry_new ();
    gtk_entry_set_activates_default (GTK_ENTRY (widget), TRUE);
    gtk_table_attach (
        GTK_TABLE (container), widget,
        1, 2, 1, 2, GTK_FILL | GTK_EXPAND, 0, 0, 0);
    dialog->priv->entry = g_object_ref (widget);
    gtk_widget_show (widget);

    widget = gtk_label_new_with_mnemonic (_("_Name:"));
    gtk_label_set_mnemonic_widget (
        GTK_LABEL (widget), dialog->priv->entry);
    gtk_misc_set_alignment (GTK_MISC (widget), 1.0, 0.5);
    gtk_table_attach (
        GTK_TABLE (container), widget,
        0, 1, 1, 2, GTK_FILL, 0, 0, 0);
    gtk_widget_show (widget);

    widget = gtk_file_chooser_button_new (
        NULL, GTK_FILE_CHOOSER_ACTION_OPEN);
    gtk_table_attach (
        GTK_TABLE (container), widget,
        1, 2, 2, 3, GTK_FILL | GTK_EXPAND, 0, 0, 0);
    dialog->priv->file_chooser = g_object_ref (widget);
    gtk_widget_show (widget);

    /* Restrict file selection to executable files. */
    filter = gtk_file_filter_new ();
    gtk_file_filter_add_custom (
        filter, GTK_FILE_FILTER_FILENAME,
        (GtkFileFilterFunc) signature_script_dialog_filter_cb,
        NULL, NULL);
    gtk_file_chooser_set_filter (GTK_FILE_CHOOSER (widget), filter);

    /* XXX ESignature stores a filename instead of a URI,
     *     so we have to restrict it to local files only. */
    gtk_file_chooser_set_local_only (GTK_FILE_CHOOSER (widget), TRUE);

    widget = gtk_label_new_with_mnemonic (_("S_cript:"));
    gtk_label_set_mnemonic_widget (
        GTK_LABEL (widget), dialog->priv->file_chooser);
    gtk_table_attach (
        GTK_TABLE (container), widget,
        0, 1, 2, 3, GTK_FILL, 0, 0, 0);
    gtk_widget_show (widget);

    /* This is just a placeholder. */
    widget = gtk_label_new (NULL);
    gtk_table_attach (
        GTK_TABLE (container), widget,
        0, 1, 3, 4, GTK_FILL, 0, 0, 0);
    gtk_widget_show (widget);

    widget = gtk_hbox_new (FALSE, 6);
    gtk_table_attach (
        GTK_TABLE (container), widget,
        1, 2, 3, 4, 0, 0, 0, 0);
    dialog->priv->alert = g_object_ref (widget);
    gtk_widget_show (widget);

    container = widget;

    widget = gtk_image_new_from_stock (
        GTK_STOCK_DIALOG_WARNING, GTK_ICON_SIZE_MENU);
    gtk_box_pack_start (GTK_BOX (container), widget, FALSE, FALSE, 0);
    gtk_widget_show (widget);

    markup = g_markup_printf_escaped (
        "<small>%s</small>",
        _("Script file must be executable."));
    widget = gtk_label_new (markup);
    gtk_label_set_use_markup (GTK_LABEL (widget), TRUE);
    gtk_misc_set_alignment (GTK_MISC (widget), 0.0, 0.5);
    gtk_box_pack_start (GTK_BOX (container), widget, TRUE, TRUE, 0);
    gtk_widget_show (widget);
    g_free (markup);

    g_signal_connect (
        dialog, "notify::script-file",
        G_CALLBACK (signature_script_dialog_update_status), NULL);

    g_signal_connect (
        dialog, "notify::script-name",
        G_CALLBACK (signature_script_dialog_update_status), NULL);

    g_signal_connect_swapped (
        dialog->priv->entry, "changed",
        G_CALLBACK (signature_script_dialog_update_status), dialog);

    g_signal_connect_swapped (
        dialog->priv->file_chooser, "file-set",
        G_CALLBACK (signature_script_dialog_update_status), dialog);

    signature_script_dialog_update_status (dialog);
}

GtkWidget *
e_signature_script_dialog_new (GtkWindow *parent)
{
    return g_object_new (
        E_TYPE_SIGNATURE_SCRIPT_DIALOG,
        "transient-for", parent, NULL);
}

GFile *
e_signature_script_dialog_get_script_file (ESignatureScriptDialog *dialog)
{
    GtkFileChooser *file_chooser;

    g_return_val_if_fail (E_IS_SIGNATURE_SCRIPT_DIALOG (dialog), NULL);

    file_chooser = GTK_FILE_CHOOSER (dialog->priv->file_chooser);

    return gtk_file_chooser_get_file (file_chooser);
}

void
e_signature_script_dialog_set_script_file (ESignatureScriptDialog *dialog,
                                           GFile *script_file)
{
    GtkFileChooser *file_chooser;
    GError *error = NULL;

    g_return_if_fail (E_IS_SIGNATURE_SCRIPT_DIALOG (dialog));
    g_return_if_fail (G_IS_FILE (script_file));

    file_chooser = GTK_FILE_CHOOSER (dialog->priv->file_chooser);

    if (gtk_file_chooser_set_file (file_chooser, script_file, &error))
        g_object_notify (G_OBJECT (dialog), "script-file");
    else {
        g_warning ("%s", error->message);
        g_error_free (error);
    }
}

const gchar *
e_signature_script_dialog_get_script_name (ESignatureScriptDialog *dialog)
{
    GtkEntry *entry;

    g_return_val_if_fail (E_IS_SIGNATURE_SCRIPT_DIALOG (dialog), NULL);

    entry = GTK_ENTRY (dialog->priv->entry);

    return gtk_entry_get_text (entry);
}

void
e_signature_script_dialog_set_script_name (ESignatureScriptDialog *dialog,
                                           const gchar *script_name)
{
    GtkEntry *entry;

    g_return_if_fail (E_IS_SIGNATURE_SCRIPT_DIALOG (dialog));

    if (script_name == NULL)
        script_name = "";

    entry = GTK_ENTRY (dialog->priv->entry);
    gtk_entry_set_text (entry, script_name);

    g_object_notify (G_OBJECT (dialog), "script-name");
}