/*
 * nautilus-progress-info-widget.h: file operation progress user interface.
 *
 * Copyright (C) 2007, 2011 Red Hat, Inc.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of the
 * License, or (at your option) any later version.
 *
 * 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
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public
 * License along with this program; if not, see <http://www.gnu.org/licenses/>.
 *
 * Authors: Alexander Larsson <alexl@redhat.com>
 *          Cosimo Cecchi <cosimoc@redhat.com>
 *
 */

#include <config.h>

#include "nautilus-progress-info-widget.h"
struct _NautilusProgressInfoWidgetPrivate
{
    NautilusProgressInfo *info;

    GtkWidget *status;     /* GtkLabel */
    GtkWidget *details;     /* GtkLabel */
    GtkWidget *progress_bar;
    GtkWidget *button;
    GtkWidget *done_image;
};

enum
{
    PROP_INFO = 1,
    NUM_PROPERTIES
};

static GParamSpec *properties[NUM_PROPERTIES] = { NULL };

G_DEFINE_TYPE_WITH_PRIVATE (NautilusProgressInfoWidget, nautilus_progress_info_widget,
                            GTK_TYPE_GRID);

static void
info_finished (NautilusProgressInfoWidget *self)
{
    gtk_button_set_image (GTK_BUTTON (self->priv->button), self->priv->done_image);
    gtk_widget_set_sensitive (self->priv->button, FALSE);
}

static void
info_cancelled (NautilusProgressInfoWidget *self)
{
    gtk_widget_set_sensitive (self->priv->button, FALSE);
}

static void
update_data (NautilusProgressInfoWidget *self)
{
    char *status, *details;
    char *markup;

    status = nautilus_progress_info_get_status (self->priv->info);
    gtk_label_set_text (GTK_LABEL (self->priv->status), status);
    g_free (status);

    details = nautilus_progress_info_get_details (self->priv->info);
    markup = g_markup_printf_escaped ("<span size='small'>%s</span>", details);
    gtk_label_set_markup (GTK_LABEL (self->priv->details), markup);
    g_free (details);
    g_free (markup);
}

static void
update_progress (NautilusProgressInfoWidget *self)
{
    double progress;

    progress = nautilus_progress_info_get_progress (self->priv->info);
    if (progress < 0)
    {
        gtk_progress_bar_pulse (GTK_PROGRESS_BAR (self->priv->progress_bar));
    }
    else
    {
        gtk_progress_bar_set_fraction (GTK_PROGRESS_BAR (self->priv->progress_bar), progress);
    }
}

static void
button_clicked (GtkWidget                  *button,
                NautilusProgressInfoWidget *self)
{
    if (!nautilus_progress_info_get_is_finished (self->priv->info))
    {
        nautilus_progress_info_cancel (self->priv->info);
    }
}

static void
nautilus_progress_info_widget_dispose (GObject *obj)
{
    NautilusProgressInfoWidget *self = NAUTILUS_PROGRESS_INFO_WIDGET (obj);

    if (self->priv->info != NULL)
    {
        g_signal_handlers_disconnect_by_data (self->priv->info, self);
    }
    g_clear_object (&self->priv->info);

    G_OBJECT_CLASS (nautilus_progress_info_widget_parent_class)->dispose (obj);
}

static void
nautilus_progress_info_widget_constructed (GObject *obj)
{
    NautilusProgressInfoWidget *self = NAUTILUS_PROGRESS_INFO_WIDGET (obj);

    G_OBJECT_CLASS (nautilus_progress_info_widget_parent_class)->constructed (obj);

    g_signal_connect_swapped (self->priv->info,
                              "changed",
                              G_CALLBACK (update_data), self);
    g_signal_connect_swapped (self->priv->info,
                              "progress-changed",
                              G_CALLBACK (update_progress), self);
    g_signal_connect_swapped (self->priv->info,
                              "finished",
                              G_CALLBACK (info_finished), self);
    g_signal_connect_swapped (self->priv->info,
                              "cancelled",
                              G_CALLBACK (info_cancelled), self);

    update_data (self);
    update_progress (self);
}

static void
nautilus_progress_info_widget_set_property (GObject      *object,
                                            guint         property_id,
                                            const GValue *value,
                                            GParamSpec   *pspec)
{
    NautilusProgressInfoWidget *self = NAUTILUS_PROGRESS_INFO_WIDGET (object);

    switch (property_id)
    {
        case PROP_INFO:
        {
            self->priv->info = g_value_dup_object (value);
        }
        break;

        default:
        {
            G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
        }
        break;
    }
}

static void
nautilus_progress_info_widget_init (NautilusProgressInfoWidget *self)
{
    self->priv = nautilus_progress_info_widget_get_instance_private (self);

    gtk_widget_init_template (GTK_WIDGET (self));

    g_signal_connect (self->priv->button, "clicked",
                      G_CALLBACK (button_clicked), self);
}

static void
nautilus_progress_info_widget_class_init (NautilusProgressInfoWidgetClass *klass)
{
    GObjectClass *oclass;
    GtkWidgetClass *widget_class;

    widget_class = GTK_WIDGET_CLASS (klass);
    oclass = G_OBJECT_CLASS (klass);
    oclass->set_property = nautilus_progress_info_widget_set_property;
    oclass->constructed = nautilus_progress_info_widget_constructed;
    oclass->dispose = nautilus_progress_info_widget_dispose;

    properties[PROP_INFO] =
        g_param_spec_object ("info",
                             "NautilusProgressInfo",
                             "The NautilusProgressInfo associated with this widget",
                             NAUTILUS_TYPE_PROGRESS_INFO,
                             G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY |
                             G_PARAM_STATIC_STRINGS);

    g_object_class_install_properties (oclass, NUM_PROPERTIES, properties);

    gtk_widget_class_set_template_from_resource (widget_class,
                                                 "/org/gnome/nautilus/ui/nautilus-progress-info-widget.ui");

    gtk_widget_class_bind_template_child_private (widget_class, NautilusProgressInfoWidget, status);
    gtk_widget_class_bind_template_child_private (widget_class, NautilusProgressInfoWidget, details);
    gtk_widget_class_bind_template_child_private (widget_class, NautilusProgressInfoWidget, progress_bar);
    gtk_widget_class_bind_template_child_private (widget_class, NautilusProgressInfoWidget, button);
    gtk_widget_class_bind_template_child_private (widget_class, NautilusProgressInfoWidget, done_image);
}

GtkWidget *
nautilus_progress_info_widget_new (NautilusProgressInfo *info)
{
    NautilusProgressInfoWidget *self;

    self = g_object_new (NAUTILUS_TYPE_PROGRESS_INFO_WIDGET,
                         "info", info,
                         NULL);

    if (nautilus_progress_info_get_is_finished (self->priv->info))
    {
        gtk_button_set_image (GTK_BUTTON (self->priv->button), self->priv->done_image);
    }

    gtk_widget_set_sensitive (self->priv->button,
                              !nautilus_progress_info_get_is_finished (self->priv->info) &&
                              !nautilus_progress_info_get_is_cancelled (self->priv->info));

    return GTK_WIDGET (self);
}