/*
 * marlin-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, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 *
 * Authors: Alexander Larsson <alexl@redhat.com>
 *          Cosimo Cecchi <cosimoc@redhat.com>
 *
 */

#include <config.h>

#include "marlin-progress-info-widget.h"

struct _MarlinProgressInfoWidgetPriv {
    MarlinProgressInfo *info;

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

enum {
    PROP_INFO = 1,
    NUM_PROPERTIES
};

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

G_DEFINE_TYPE (MarlinProgressInfoWidget, marlin_progress_info_widget,
	       GTK_TYPE_BOX);

static void
info_finished (MarlinProgressInfoWidget *self)
{
    gtk_widget_destroy (GTK_WIDGET (self));
}

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

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

    details = marlin_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 (MarlinProgressInfoWidget *self)
{
    double progress;

    progress = marlin_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
cancel_clicked (GtkWidget *button,
		MarlinProgressInfoWidget *self)
{
    marlin_progress_info_cancel (self->priv->info);
    gtk_widget_set_sensitive (button, FALSE);
}

static void
marlin_progress_info_widget_constructed (GObject *obj)
{
    GtkWidget *label, *progress_bar, *hbox, *box, *button, *image;
    MarlinProgressInfoWidget *self = MARLIN_PROGRESS_INFO_WIDGET (obj);

    G_OBJECT_CLASS (marlin_progress_info_widget_parent_class)->constructed (obj);

    label = gtk_label_new ("status");
    gtk_widget_set_size_request (label, 500, -1);
    gtk_label_set_line_wrap (GTK_LABEL (label), TRUE);
    gtk_label_set_line_wrap_mode (GTK_LABEL (label), PANGO_WRAP_WORD_CHAR);
    gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
    gtk_box_pack_start (GTK_BOX (self),
			label,
			TRUE, FALSE,
			0);
    self->priv->status = label;

    hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 10);

    progress_bar = gtk_progress_bar_new ();
    self->priv->progress_bar = progress_bar;
    gtk_progress_bar_set_pulse_step (GTK_PROGRESS_BAR (progress_bar), 0.05);
    box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
    gtk_box_pack_start(GTK_BOX (box),
		       progress_bar,
		       TRUE, FALSE,
		       0);
    gtk_box_pack_start(GTK_BOX (hbox),
		       box,
		       TRUE, TRUE,
		       0);

    image = gtk_image_new_from_stock (GTK_STOCK_CANCEL,
				      GTK_ICON_SIZE_BUTTON);
    button = gtk_button_new ();
    gtk_container_add (GTK_CONTAINER (button), image);
    gtk_box_pack_start (GTK_BOX (hbox),
			button,
			FALSE,FALSE,
			0);
    g_signal_connect (button, "clicked",
		      G_CALLBACK (cancel_clicked), self);

    gtk_box_pack_start (GTK_BOX (self),
			hbox,
			FALSE,FALSE,
			0);

    label = gtk_label_new ("details");
    gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
    gtk_label_set_line_wrap (GTK_LABEL (label), TRUE);
    gtk_box_pack_start (GTK_BOX (self),
			label,
			TRUE, FALSE,
			0);
    self->priv->details = label;

    gtk_widget_show_all (GTK_WIDGET (self));

    update_data (self);
    update_progress (self);

    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);
}

static void
marlin_progress_info_widget_dispose (GObject *obj)
{
    MarlinProgressInfoWidget *self = MARLIN_PROGRESS_INFO_WIDGET (obj);

    g_clear_object (&self->priv->info);

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

static void
marlin_progress_info_widget_set_property (GObject *object,
					  guint property_id,
					  const GValue *value,
					  GParamSpec *pspec)
{
    MarlinProgressInfoWidget *self = MARLIN_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
marlin_progress_info_widget_init (MarlinProgressInfoWidget *self)
{
    self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self, MARLIN_TYPE_PROGRESS_INFO_WIDGET,
					      MarlinProgressInfoWidgetPriv);


}

static void
marlin_progress_info_widget_class_init (MarlinProgressInfoWidgetClass *klass)
{
    GObjectClass *oclass;

    oclass = G_OBJECT_CLASS (klass);
    oclass->set_property = marlin_progress_info_widget_set_property;
    oclass->constructed = marlin_progress_info_widget_constructed;
    oclass->dispose = marlin_progress_info_widget_dispose;

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

    g_object_class_install_properties (oclass, NUM_PROPERTIES, properties);

    g_type_class_add_private (klass, sizeof (MarlinProgressInfoWidgetPriv));
}

GtkWidget *
marlin_progress_info_widget_new (MarlinProgressInfo *info)
{
    return g_object_new (MARLIN_TYPE_PROGRESS_INFO_WIDGET,
			 "info", info,
			 "orientation", GTK_ORIENTATION_VERTICAL,
			 "homogeneous", FALSE,
			 "spacing", 5,
			 NULL);
}