path: root/widgets/misc/e-signature-manager.c

/*
 * e-signature-manager.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-manager.h"

#include <glib/gi18n.h>
#include <glib/gstdio.h>
#include <gdk/gdkkeysyms.h>
#include "e-signature-tree-view.h"
#include "e-signature-script-dialog.h"

#define E_SIGNATURE_MANAGER_GET_PRIVATE(obj) \
    (G_TYPE_INSTANCE_GET_PRIVATE \
    ((obj), E_TYPE_SIGNATURE_MANAGER, ESignatureManagerPrivate))

struct _ESignatureManagerPrivate {
    ESignatureList *signature_list;

    GtkWidget *tree_view;
    GtkWidget *add_button;
    GtkWidget *add_script_button;
    GtkWidget *edit_button;
    GtkWidget *remove_button;

    guint disable_command_line : 1;
    guint prefer_html          : 1;
};

enum {
    PROP_0,
    PROP_DISABLE_COMMAND_LINE,
    PROP_PREFER_HTML,
    PROP_SIGNATURE_LIST
};

enum {
    ADD_SIGNATURE,
    ADD_SIGNATURE_SCRIPT,
    EDITOR_CREATED,
    EDIT_SIGNATURE,
    REMOVE_SIGNATURE,
    LAST_SIGNAL
};

static guint signals[LAST_SIGNAL];

G_DEFINE_TYPE (
    ESignatureManager,
    e_signature_manager,
    GTK_TYPE_TABLE)

static void
signature_manager_emit_editor_created (ESignatureManager *manager,
                                       GtkWidget *editor)
{
    g_return_if_fail (E_IS_SIGNATURE_EDITOR (editor));

    g_signal_emit (manager, signals[EDITOR_CREATED], 0, editor);
}

static gboolean
signature_manager_key_press_event_cb (ESignatureManager *manager,
                                      GdkEventKey *event)
{
    if (event->keyval == GDK_KEY_Delete) {
        e_signature_manager_remove_signature (manager);
        return TRUE;
    }

    return FALSE;
}

static gboolean
signature_manager_run_script_dialog (ESignatureManager *manager,
                                     ESignature *signature,
                                     const gchar *title)
{
    GtkWidget *dialog;
    GFile *script_file;
    const gchar *name;
    const gchar *filename;
    const gchar *script_name;
    gboolean success = FALSE;
    gpointer parent;
    gchar *path;

    parent = gtk_widget_get_toplevel (GTK_WIDGET (manager));
    parent = gtk_widget_is_toplevel (parent) ? parent : NULL;

    dialog = e_signature_script_dialog_new (parent);
    gtk_window_set_title (GTK_WINDOW (dialog), title);

    name = e_signature_get_name (signature);
    filename = e_signature_get_filename (signature);

    if (filename != NULL && name != NULL) {

        script_file = g_file_new_for_path (filename);
        script_name = name;

        e_signature_script_dialog_set_script_file (
            E_SIGNATURE_SCRIPT_DIALOG (dialog), script_file);
        e_signature_script_dialog_set_script_name (
            E_SIGNATURE_SCRIPT_DIALOG (dialog), script_name);

        g_object_unref (script_file);
    }

    if (gtk_dialog_run (GTK_DIALOG (dialog)) != GTK_RESPONSE_OK)
        goto exit;

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

    path = g_file_get_path (script_file);
    e_signature_set_name (signature, script_name);
    e_signature_set_filename (signature, path);
    g_free (path);

    g_object_unref (script_file);

    success = TRUE;

exit:
    gtk_widget_destroy (dialog);

    return success;
}

static void
signature_manager_selection_changed_cb (ESignatureManager *manager,
                                        GtkTreeSelection *selection)
{
    ESignatureTreeView *tree_view;
    ESignature *signature;
    GtkWidget *edit_button;
    GtkWidget *remove_button;
    gboolean sensitive;

    edit_button = manager->priv->edit_button;
    remove_button = manager->priv->remove_button;

    tree_view = e_signature_manager_get_tree_view (manager);
    signature = e_signature_tree_view_get_selected (tree_view);
    sensitive = (signature != NULL);

    gtk_widget_set_sensitive (edit_button, sensitive);
    gtk_widget_set_sensitive (remove_button, sensitive);
}

static void
signature_manager_set_property (GObject *object,
                                guint property_id,
                                const GValue *value,
                                GParamSpec *pspec)
{
    switch (property_id) {
        case PROP_DISABLE_COMMAND_LINE:
            e_signature_manager_set_disable_command_line (
                E_SIGNATURE_MANAGER (object),
                g_value_get_boolean (value));
            return;

        case PROP_PREFER_HTML:
            e_signature_manager_set_prefer_html (
                E_SIGNATURE_MANAGER (object),
                g_value_get_boolean (value));
            return;

        case PROP_SIGNATURE_LIST:
            e_signature_manager_set_signature_list (
                E_SIGNATURE_MANAGER (object),
                g_value_get_object (value));
            return;
    }

    G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}

static void
signature_manager_get_property (GObject *object,
                                guint property_id,
                                GValue *value,
                                GParamSpec *pspec)
{
    switch (property_id) {
        case PROP_DISABLE_COMMAND_LINE:
            g_value_set_boolean (
                value,
                e_signature_manager_get_disable_command_line (
                E_SIGNATURE_MANAGER (object)));
            return;

        case PROP_PREFER_HTML:
            g_value_set_boolean (
                value,
                e_signature_manager_get_prefer_html (
                E_SIGNATURE_MANAGER (object)));
            return;

        case PROP_SIGNATURE_LIST:
            g_value_set_object (
                value,
                e_signature_manager_get_signature_list (
                E_SIGNATURE_MANAGER (object)));
            return;
    }

    G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}

static void
signature_manager_dispose (GObject *object)
{
    ESignatureManagerPrivate *priv;

    priv = E_SIGNATURE_MANAGER_GET_PRIVATE (object);

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

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

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

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

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

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

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

static void
signature_manager_constructed (GObject *object)
{
#ifndef G_OS_WIN32
    GSettings *settings;

    settings = g_settings_new ("org.gnome.desktop.lockdown");

    g_settings_bind (
        settings, "disable-command-line",
        object, "disable-command-line",
        G_SETTINGS_BIND_GET);

    g_object_unref (settings);
#endif

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

static void
signature_manager_add_signature (ESignatureManager *manager)
{
    ESignatureTreeView *tree_view;
    GtkWidget *editor;

    tree_view = e_signature_manager_get_tree_view (manager);

    editor = e_signature_editor_new ();
    gtkhtml_editor_set_html_mode (
        GTKHTML_EDITOR (editor), manager->priv->prefer_html);
    signature_manager_emit_editor_created (manager, editor);

    gtk_widget_grab_focus (GTK_WIDGET (tree_view));
}

static void
signature_manager_add_signature_script (ESignatureManager *manager)
{
    ESignatureTreeView *tree_view;
    ESignatureList *signature_list;
    ESignature *signature;
    const gchar *title;

    title = _("Add Signature Script");
    tree_view = e_signature_manager_get_tree_view (manager);
    signature_list = e_signature_manager_get_signature_list (manager);

    signature = e_signature_new ();
    e_signature_set_is_script (signature, TRUE);
    e_signature_set_is_html (signature, TRUE);

    if (signature_manager_run_script_dialog (manager, signature, title))
        e_signature_list_add (signature_list, signature);

    e_signature_list_save (signature_list);
    g_object_unref (signature);

    gtk_widget_grab_focus (GTK_WIDGET (tree_view));
}

static void
signature_manager_editor_created (ESignatureManager *manager,
                                  ESignatureEditor *editor)
{
    GtkWindowPosition position;
    gpointer parent;

    position = GTK_WIN_POS_CENTER_ON_PARENT;
    parent = gtk_widget_get_toplevel (GTK_WIDGET (manager));
    parent = gtk_widget_is_toplevel (parent) ? parent : NULL;

    gtk_window_set_transient_for (GTK_WINDOW (editor), parent);
    gtk_window_set_position (GTK_WINDOW (editor), position);
    gtk_widget_show (GTK_WIDGET (editor));
}

static void
signature_manager_edit_signature (ESignatureManager *manager)
{
    ESignatureTreeView *tree_view;
    ESignatureList *signature_list;
    ESignature *signature;
    GtkWidget *editor;
    const gchar *title;
    const gchar *filename;

    tree_view = e_signature_manager_get_tree_view (manager);
    signature = e_signature_tree_view_get_selected (tree_view);
    signature_list = e_signature_manager_get_signature_list (manager);

    if (signature == NULL)
        return;

    if (e_signature_get_is_script (signature))
        goto script;

    filename = e_signature_get_filename (signature);
    if (filename == NULL || *filename == '\0')
        e_signature_set_filename (signature, _("Unnamed"));

    editor = e_signature_editor_new ();
    e_signature_editor_set_signature (
        E_SIGNATURE_EDITOR (editor), signature);
    signature_manager_emit_editor_created (manager, editor);

    goto exit;

script:
    title = _("Edit Signature Script");

    if (signature_manager_run_script_dialog (manager, signature, title))
        e_signature_list_change (signature_list, signature);

    e_signature_list_save (signature_list);

exit:
    gtk_widget_grab_focus (GTK_WIDGET (tree_view));

    g_object_unref (signature);
}

static void
signature_manager_remove_signature (ESignatureManager *manager)
{
    ESignatureTreeView *tree_view;
    ESignatureList *signature_list;
    ESignature *signature;
    const gchar *filename;
    gboolean is_script;

    tree_view = e_signature_manager_get_tree_view (manager);
    signature = e_signature_tree_view_get_selected (tree_view);
    signature_list = e_signature_tree_view_get_signature_list (tree_view);

    if (signature == NULL)
        return;

    filename = e_signature_get_filename (signature);
    is_script = e_signature_get_is_script (signature);

    if (filename != NULL && !is_script)
        g_unlink (filename);

    e_signature_list_remove (signature_list, signature);
    e_signature_list_save (signature_list);

    gtk_widget_grab_focus (GTK_WIDGET (tree_view));
}

static void
e_signature_manager_class_init (ESignatureManagerClass *class)
{
    GObjectClass *object_class;

    g_type_class_add_private (class, sizeof (ESignatureManagerPrivate));

    object_class = G_OBJECT_CLASS (class);
    object_class->set_property = signature_manager_set_property;
    object_class->get_property = signature_manager_get_property;
    object_class->dispose = signature_manager_dispose;
    object_class->constructed = signature_manager_constructed;

    class->add_signature = signature_manager_add_signature;
    class->add_signature_script = signature_manager_add_signature_script;
    class->editor_created = signature_manager_editor_created;
    class->edit_signature = signature_manager_edit_signature;
    class->remove_signature = signature_manager_remove_signature;

    g_object_class_install_property (
        object_class,
        PROP_DISABLE_COMMAND_LINE,
        g_param_spec_boolean (
            "disable-command-line",
            "Disable Command Line",
            NULL,
            FALSE,
            G_PARAM_READWRITE |
            G_PARAM_CONSTRUCT));

    g_object_class_install_property (
        object_class,
        PROP_PREFER_HTML,
        g_param_spec_boolean (
            "prefer-html",
            "Prefer HTML",
            NULL,
            TRUE,
            G_PARAM_READWRITE |
            G_PARAM_CONSTRUCT));

    g_object_class_install_property (
        object_class,
        PROP_SIGNATURE_LIST,
        g_param_spec_object (
            "signature-list",
            "Signature List",
            NULL,
            E_TYPE_SIGNATURE_LIST,
            G_PARAM_READWRITE |
            G_PARAM_CONSTRUCT));

    signals[ADD_SIGNATURE] = g_signal_new (
        "add-signature",
        G_OBJECT_CLASS_TYPE (class),
        G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
        G_STRUCT_OFFSET (ESignatureManagerClass, add_signature),
        NULL, NULL,
        g_cclosure_marshal_VOID__VOID,
        G_TYPE_NONE, 0);

    signals[ADD_SIGNATURE_SCRIPT] = g_signal_new (
        "add-signature-script",
        G_OBJECT_CLASS_TYPE (class),
        G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
        G_STRUCT_OFFSET (ESignatureManagerClass, add_signature_script),
        NULL, NULL,
        g_cclosure_marshal_VOID__VOID,
        G_TYPE_NONE, 0);

    signals[EDITOR_CREATED] = g_signal_new (
        "editor-created",
        G_OBJECT_CLASS_TYPE (class),
        G_SIGNAL_RUN_LAST,
        G_STRUCT_OFFSET (ESignatureManagerClass, editor_created),
        NULL, NULL,
        g_cclosure_marshal_VOID__OBJECT,
        G_TYPE_NONE, 1,
        E_TYPE_SIGNATURE_EDITOR);

    signals[EDIT_SIGNATURE] = g_signal_new (
        "edit-signature",
        G_OBJECT_CLASS_TYPE (class),
        G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
        G_STRUCT_OFFSET (ESignatureManagerClass, edit_signature),
        NULL, NULL,
        g_cclosure_marshal_VOID__VOID,
        G_TYPE_NONE, 0);

    signals[REMOVE_SIGNATURE] = g_signal_new (
        "remove-signature",
        G_OBJECT_CLASS_TYPE (class),
        G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
        G_STRUCT_OFFSET (ESignatureManagerClass, remove_signature),
        NULL, NULL,
        g_cclosure_marshal_VOID__VOID,
        G_TYPE_NONE, 0);
}

static void
e_signature_manager_init (ESignatureManager *manager)
{
    GtkTreeSelection *selection;
    GtkWidget *container;
    GtkWidget *widget;

    manager->priv = E_SIGNATURE_MANAGER_GET_PRIVATE (manager);

    gtk_table_resize (GTK_TABLE (manager), 1, 2);
    gtk_table_set_col_spacings (GTK_TABLE (manager), 6);
    gtk_table_set_row_spacings (GTK_TABLE (manager), 12);

    container = GTK_WIDGET (manager);

    widget = gtk_scrolled_window_new (NULL, NULL);
    gtk_scrolled_window_set_policy (
        GTK_SCROLLED_WINDOW (widget),
        GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
    gtk_scrolled_window_set_shadow_type (
        GTK_SCROLLED_WINDOW (widget), GTK_SHADOW_IN);
    gtk_table_attach (
        GTK_TABLE (container), widget, 0, 1, 0, 1,
        GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);
    gtk_widget_show (widget);

    container = widget;

    widget = e_signature_tree_view_new ();
    gtk_container_add (GTK_CONTAINER (container), widget);
    manager->priv->tree_view = g_object_ref (widget);
    gtk_widget_show (widget);

    g_object_bind_property (
        manager, "signature-list",
        widget, "signature-list",
        G_BINDING_BIDIRECTIONAL |
        G_BINDING_SYNC_CREATE);

    g_signal_connect_swapped (
        widget, "key-press-event",
        G_CALLBACK (signature_manager_key_press_event_cb),
        manager);

    g_signal_connect_swapped (
        widget, "row-activated",
        G_CALLBACK (e_signature_manager_edit_signature),
        manager);

    selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (widget));

    g_signal_connect_swapped (
        selection, "changed",
        G_CALLBACK (signature_manager_selection_changed_cb),
        manager);

    container = GTK_WIDGET (manager);

    widget = gtk_vbutton_box_new ();
    gtk_button_box_set_layout (
        GTK_BUTTON_BOX (widget), GTK_BUTTONBOX_START);
    gtk_box_set_spacing (GTK_BOX (widget), 6);
    gtk_table_attach (
        GTK_TABLE (container), widget,
        1, 2, 0, 2, 0, GTK_FILL, 0, 0);
    gtk_widget_show (widget);

    container = widget;

    widget = gtk_button_new_from_stock (GTK_STOCK_ADD);
    gtk_box_pack_start (GTK_BOX (container), widget, TRUE, TRUE, 0);
    manager->priv->add_button = g_object_ref (widget);
    gtk_widget_show (widget);

    g_signal_connect_swapped (
        widget, "clicked",
        G_CALLBACK (e_signature_manager_add_signature),
        manager);

    widget = gtk_button_new_with_mnemonic (_("Add _Script"));
    gtk_button_set_image (
        GTK_BUTTON (widget), gtk_image_new_from_stock (
        GTK_STOCK_EXECUTE, GTK_ICON_SIZE_BUTTON));
    gtk_box_pack_start (GTK_BOX (container), widget, TRUE, TRUE, 0);
    manager->priv->add_script_button = g_object_ref (widget);
    gtk_widget_show (widget);

    g_object_bind_property (
        manager, "disable-command-line",
        widget, "visible",
        G_BINDING_SYNC_CREATE |
        G_BINDING_INVERT_BOOLEAN);

    g_signal_connect_swapped (
        widget, "clicked",
        G_CALLBACK (e_signature_manager_add_signature_script),
        manager);

    widget = gtk_button_new_from_stock (GTK_STOCK_EDIT);
    gtk_box_pack_start (GTK_BOX (container), widget, TRUE, TRUE, 0);
    manager->priv->edit_button = g_object_ref (widget);
    gtk_widget_show (widget);

    g_signal_connect_swapped (
        widget, "clicked",
        G_CALLBACK (e_signature_manager_edit_signature),
        manager);

    widget = gtk_button_new_from_stock (GTK_STOCK_REMOVE);
    gtk_box_pack_start (GTK_BOX (container), widget, TRUE, TRUE, 0);
    manager->priv->remove_button = g_object_ref (widget);
    gtk_widget_show (widget);

    g_signal_connect_swapped (
        widget, "clicked",
        G_CALLBACK (e_signature_manager_remove_signature),
        manager);
}

GtkWidget *
e_signature_manager_new (ESignatureList *signature_list)
{
    g_return_val_if_fail (E_IS_SIGNATURE_LIST (signature_list), NULL);

    return g_object_new (
        E_TYPE_SIGNATURE_MANAGER,
        "signature-list", signature_list, NULL);
}

void
e_signature_manager_add_signature (ESignatureManager *manager)
{
    g_return_if_fail (E_IS_SIGNATURE_MANAGER (manager));

    g_signal_emit (manager, signals[ADD_SIGNATURE], 0);
}

void
e_signature_manager_add_signature_script (ESignatureManager *manager)
{
    g_return_if_fail (E_IS_SIGNATURE_MANAGER (manager));

    g_signal_emit (manager, signals[ADD_SIGNATURE_SCRIPT], 0);
}

void
e_signature_manager_edit_signature (ESignatureManager *manager)
{
    g_return_if_fail (E_IS_SIGNATURE_MANAGER (manager));

    g_signal_emit (manager, signals[EDIT_SIGNATURE], 0);
}

void
e_signature_manager_remove_signature (ESignatureManager *manager)
{
    g_return_if_fail (E_IS_SIGNATURE_MANAGER (manager));

    g_signal_emit (manager, signals[REMOVE_SIGNATURE], 0);
}

gboolean
e_signature_manager_get_disable_command_line (ESignatureManager *manager)
{
    g_return_val_if_fail (E_IS_SIGNATURE_MANAGER (manager), FALSE);

    return manager->priv->disable_command_line;
}

void
e_signature_manager_set_disable_command_line (ESignatureManager *manager,
                                              gboolean disable_command_line)
{
    g_return_if_fail (E_IS_SIGNATURE_MANAGER (manager));

    manager->priv->disable_command_line = disable_command_line;

    g_object_notify (G_OBJECT (manager), "disable-command-line");
}

gboolean
e_signature_manager_get_prefer_html (ESignatureManager *manager)
{
    g_return_val_if_fail (E_IS_SIGNATURE_MANAGER (manager), FALSE);

    return manager->priv->prefer_html;
}

void
e_signature_manager_set_prefer_html (ESignatureManager *manager,
                                     gboolean prefer_html)
{
    g_return_if_fail (E_IS_SIGNATURE_MANAGER (manager));

    manager->priv->prefer_html = prefer_html;

    g_object_notify (G_OBJECT (manager), "prefer-html");
}

ESignatureList *
e_signature_manager_get_signature_list (ESignatureManager *manager)
{
    g_return_val_if_fail (E_IS_SIGNATURE_MANAGER (manager), NULL);

    return manager->priv->signature_list;
}

void
e_signature_manager_set_signature_list (ESignatureManager *manager,
                                        ESignatureList *signature_list)
{
    g_return_if_fail (E_IS_SIGNATURE_MANAGER (manager));

    if (signature_list != NULL) {
        g_return_if_fail (E_IS_SIGNATURE_LIST (signature_list));
        g_object_ref (signature_list);
    }

    if (manager->priv->signature_list != NULL)
        g_object_unref (manager->priv->signature_list);

    manager->priv->signature_list = signature_list;

    g_object_notify (G_OBJECT (manager), "signature-list");
}

ESignatureTreeView *
e_signature_manager_get_tree_view (ESignatureManager *manager)
{
    g_return_val_if_fail (E_IS_SIGNATURE_MANAGER (manager), NULL);

    return E_SIGNATURE_TREE_VIEW (manager->priv->tree_view);
}