#include <config.h>
#include <gdk/gdkkeysyms.h>
#include <gtk/gtkmain.h>
#include "full-screen.h"
#include "gstplay.h"

/* Private part of the FullScreen structure */
struct _FullScreenPrivate {
	GstPlay *play;

	/* Whether we have a keyboard grab */
	guint have_grab : 1;
};



static void full_screen_class_init (FullScreenClass *class);
static void full_screen_init (FullScreen *fs);
static void full_screen_finalize (GtkObject *object);

static void full_screen_show (GtkWidget *widget);
static void full_screen_hide (GtkWidget *widget);

static gint full_screen_key_press (GtkWidget *widget, GdkEventKey *event);

static GtkWindowClass *parent_class;

/**

 * @void:
 *
 * Registers the #FullScreen class if necessary, and returns the type ID
 * associated to it.
 *
 * Return value: The type ID of the #FullScreen class.
 **/
GtkType
full_screen_get_type (void)
{
	static GtkType full_screen_type = 0;

	if (!full_screen_type) {
		static GtkTypeInfo full_screen_info = {
			"FullScreen",
			sizeof (FullScreen),
			sizeof (FullScreenClass),
			(GtkClassInitFunc) full_screen_class_init,
			(GtkObjectInitFunc) full_screen_init,
			NULL, /* reserved_1 */
			NULL, /* reserved_2 */
			(GtkClassInitFunc) NULL
		};

		full_screen_type = gtk_type_unique (GTK_TYPE_WINDOW, &full_screen_info);
	}

	return full_screen_type;
}

/* Class initialization function for the full screen mode */
static void
full_screen_class_init (FullScreenClass *class)
{
	GtkObjectClass *object_class;
	GtkWidgetClass *widget_class;

	object_class = (GtkObjectClass *) class;
	widget_class = (GtkWidgetClass *) class;

	parent_class = gtk_type_class (GTK_TYPE_WINDOW);

	object_class->finalize = full_screen_finalize;

	widget_class->show = full_screen_show;
	widget_class->hide = full_screen_hide;
	widget_class->key_press_event = full_screen_key_press;
}

/* Object initialization function for the full screen view */
static void
full_screen_init (FullScreen *fs)
{
	FullScreenPrivate *priv;

	priv = g_new0 (FullScreenPrivate, 1);
	fs->priv = priv;

	GTK_WINDOW (fs)->type = GTK_WINDOW_POPUP;
	g_assert (fs != NULL);
	gtk_widget_set_usize (GTK_WIDGET (fs), gdk_screen_width (), gdk_screen_height ());
	gtk_widget_set_uposition (GTK_WIDGET (fs), 0, 0);

	priv->play = gst_play_new();
	gtk_container_add (GTK_CONTAINER (fs), GTK_WIDGET (priv->play));
	gtk_widget_show (priv->play);
}

/* Finalize handler for the full screen view */
static void
full_screen_finalize (GtkObject *object)
{
	FullScreen *fs;
	FullScreenPrivate *priv;

	g_return_if_fail (object != NULL);
	g_return_if_fail (IS_FULL_SCREEN (object));

	fs = FULL_SCREEN (object);
	priv = fs->priv;

	g_free (priv);
	fs->priv = NULL;

	if (GTK_OBJECT_CLASS (parent_class)->finalize)
		(* GTK_OBJECT_CLASS (parent_class)->finalize) (object);
}



/* Widget methods */

/* Show handler for the full screen view */
static void
full_screen_show (GtkWidget *widget)
{
	FullScreen *fs;
	FullScreenPrivate *priv;

	fs = FULL_SCREEN (widget);
	priv = fs->priv;

	if (GTK_WIDGET_CLASS (parent_class)->show)
		(* GTK_WIDGET_CLASS (parent_class)->show) (widget);

	priv->have_grab = gdk_keyboard_grab (widget->window, TRUE, GDK_CURRENT_TIME) == 0;
	gtk_grab_add (widget);

	//gtk_widget_grab_focus (ui_image_get_image_view (UI_IMAGE (priv->ui)));
}

/* Hide handler for the full screen view */
static void
full_screen_hide (GtkWidget *widget)
{
	FullScreen *fs;
	FullScreenPrivate *priv;

	fs = FULL_SCREEN (widget);
	priv = fs->priv;

	if (priv->have_grab) {
		priv->have_grab = FALSE;
		gdk_keyboard_ungrab (GDK_CURRENT_TIME);
	}

	if (GTK_WIDGET_CLASS (parent_class)->show)
		(* GTK_WIDGET_CLASS (parent_class)->show) (widget);

	gtk_widget_destroy (widget);
}

/* Key press handler for the full screen view */
static gint
full_screen_key_press (GtkWidget *widget, GdkEventKey *event)
{
	gint result;
	gboolean do_hide;

	result = FALSE;

	if (GTK_WIDGET_CLASS (parent_class)->key_press_event)
		result = (* GTK_WIDGET_CLASS (parent_class)->key_press_event) (widget, event);

	if (result)
		return result;

	do_hide = FALSE;

	switch (event->keyval) {
	case GDK_Escape:
		do_hide = TRUE;
		break;

	case GDK_W:
	case GDK_w:
		if (event->state & GDK_CONTROL_MASK)
			do_hide = TRUE;
		break;

	case GDK_Q:
	case GDK_q:
		do_hide = TRUE;
		break;

	default:
		return FALSE;
	}

	if (do_hide)
		gtk_widget_hide (widget);

	return TRUE;
}



/**
 * full_screen_new:
 * @void:
 *
 * Creates a new empty full screen image viewer.
 *
 * Return value: A newly-created full screen image viewer.
 **/
GtkWidget *
full_screen_new (void)
{
	return GTK_WIDGET (gtk_type_new (TYPE_FULL_SCREEN));
}

void
full_screen_set_uri (FullScreen *fs, 
		     GstPlay *play, 
		     const guchar *uri)
{
	g_return_if_fail (fs != NULL);
	g_return_if_fail (play != NULL);
	g_return_if_fail (uri != NULL);

	g_return_if_fail (IS_FULL_SCREEN (fs));
	g_return_if_fail (GST_IS_PLAY (play));

	gst_play_set_uri (play, uri);

	gst_play_play (play);
}	

GstPlay *
full_screen_get_gst_play (FullScreen *fs)
{
	FullScreenPrivate *priv;
	g_return_val_if_fail (fs != NULL, 0);

	priv = fs->priv;

	return priv->play;
}