/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; coding: utf-8 -*-

 *

 * This file is part of GtkSourceView

 *

 * Copyright (C) 2014 - Christian Hergert

 * Copyright (C) 2014 - Ignacio Casal Quinteiro

 *

 * GtkSourceView 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 2.1 of the License, or (at your option) any later version.

 *

 * GtkSourceView 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 GtkSourceView. If not, see <http://www.gnu.org/licenses/>.

 */

#ifdef HAVE_CONFIG_H

#include <config.h>

#endif

#include "gtksourcestyleschemechooserbutton.h"

#include "gtksourcestyleschemechooser.h"

#include "gtksourcestyleschemechooserwidget.h"

#include "gtksourcestylescheme.h"

#include "gtksourceview-i18n.h"

/**

 * SECTION:styleschemechooserbutton

 * @Short_description: A button to launch a style scheme selection dialog

 * @Title: GtkSourceStyleSchemeChooserButton

 * @See_also: #GtkSourceStyleSchemeChooserWidget

 *

 * The #GtkSourceStyleSchemeChooserButton is a button which displays

 * the currently selected style scheme and allows to open a style scheme

 * selection dialog to change the style scheme.

 * It is suitable widget for selecting a style scheme in a preference dialog.

 *

 * In #GtkSourceStyleSchemeChooserButton, a #GtkSourceStyleSchemeChooserWidget

 * is used to provide a dialog for selecting style schemes.

 *

 * Since: 3.16

 */

typedef struct

{

	GtkSourceStyleScheme *scheme;

	GtkWidget *dialog;

	GtkSourceStyleSchemeChooserWidget *chooser;

} GtkSourceStyleSchemeChooserButtonPrivate;

static void gtk_source_style_scheme_chooser_button_style_scheme_chooser_interface_init (GtkSourceStyleSchemeChooserInterface *iface);

G_DEFINE_TYPE_WITH_CODE (GtkSourceStyleSchemeChooserButton,

                         gtk_source_style_scheme_chooser_button,

                         GTK_TYPE_BUTTON,

                         G_ADD_PRIVATE (GtkSourceStyleSchemeChooserButton)

                         G_IMPLEMENT_INTERFACE (GTK_SOURCE_TYPE_STYLE_SCHEME_CHOOSER,

                                                gtk_source_style_scheme_chooser_button_style_scheme_chooser_interface_init))

#define GET_PRIV(o) gtk_source_style_scheme_chooser_button_get_instance_private (o)

enum

{

	PROP_0,

	PROP_STYLE_SCHEME

};

static void

gtk_source_style_scheme_chooser_button_dispose (GObject *object)

{

	GtkSourceStyleSchemeChooserButton *button = GTK_SOURCE_STYLE_SCHEME_CHOOSER_BUTTON (object);

	GtkSourceStyleSchemeChooserButtonPrivate *priv = GET_PRIV (button);

	g_clear_object (&priv->scheme);

	G_OBJECT_CLASS (gtk_source_style_scheme_chooser_button_parent_class)->dispose (object);

}

static void

gtk_source_style_scheme_chooser_button_get_property (GObject    *object,

                                                     guint       prop_id,

                                                     GValue     *value,

                                                     GParamSpec *pspec)

{

	switch (prop_id)

	{

		case PROP_STYLE_SCHEME:

			g_value_set_object (value,

			                    gtk_source_style_scheme_chooser_get_style_scheme (GTK_SOURCE_STYLE_SCHEME_CHOOSER (object)));

			break;

		default:

			G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);

	}

}

static void

gtk_source_style_scheme_chooser_button_set_property (GObject      *object,

                                                     guint         prop_id,

                                                     const GValue *value,

                                                     GParamSpec   *pspec)

{

	switch (prop_id)

	{

		case PROP_STYLE_SCHEME:

			gtk_source_style_scheme_chooser_set_style_scheme (GTK_SOURCE_STYLE_SCHEME_CHOOSER (object),

			                                                  g_value_get_object (value));

			break;

		default:

			G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);

	}

}

static void

gtk_source_style_scheme_chooser_button_constructed (GObject *object)

{

	GtkSourceStyleSchemeChooserButton *button = GTK_SOURCE_STYLE_SCHEME_CHOOSER_BUTTON (object);

	G_OBJECT_CLASS (gtk_source_style_scheme_chooser_button_parent_class)->constructed (object);

	gtk_source_style_scheme_chooser_set_style_scheme (GTK_SOURCE_STYLE_SCHEME_CHOOSER (button),

	                                                  _gtk_source_style_scheme_get_default ());

}

static gboolean

dialog_destroy (GtkWidget *widget,

                gpointer   data)

{

	GtkSourceStyleSchemeChooserButton *button = GTK_SOURCE_STYLE_SCHEME_CHOOSER_BUTTON (data);

	GtkSourceStyleSchemeChooserButtonPrivate *priv = GET_PRIV (button);

	priv->dialog = NULL;

	priv->chooser = NULL;

	return FALSE;

}

static void

dialog_response (GtkDialog *dialog,

                 gint       response,

                 gpointer   data)

{

	if (response == GTK_RESPONSE_CANCEL)

	{

		gtk_widget_hide (GTK_WIDGET (dialog));

	}

	else if (response == GTK_RESPONSE_OK)

	{

		GtkSourceStyleSchemeChooserButton *button = GTK_SOURCE_STYLE_SCHEME_CHOOSER_BUTTON (data);

		GtkSourceStyleSchemeChooserButtonPrivate *priv = GET_PRIV (button);

		GtkSourceStyleScheme *scheme;

		scheme = gtk_source_style_scheme_chooser_get_style_scheme (GTK_SOURCE_STYLE_SCHEME_CHOOSER (priv->chooser));

		gtk_widget_hide (GTK_WIDGET (dialog));

		gtk_source_style_scheme_chooser_set_style_scheme (GTK_SOURCE_STYLE_SCHEME_CHOOSER (button),

		                                                  scheme);

	}

}

/* Create the dialog and connects its buttons */

static void

ensure_dialog (GtkSourceStyleSchemeChooserButton *button)

{

	GtkSourceStyleSchemeChooserButtonPrivate *priv = GET_PRIV (button);

	GtkWidget *parent, *dialog, *scrolled_window;

	GtkWidget *content_area;

	if (priv->dialog != NULL)

	{

		return;

	}

	parent = gtk_widget_get_toplevel (GTK_WIDGET (button));

	/* TODO: have a ChooserDialog? */

	priv->dialog = dialog = gtk_dialog_new_with_buttons (_("Select a Style"),

	                                                     GTK_WINDOW (parent),

	                                                     GTK_DIALOG_DESTROY_WITH_PARENT |

	                                                     GTK_DIALOG_USE_HEADER_BAR,

	                                                     _("_Cancel"), GTK_RESPONSE_CANCEL,

	                                                     _("_Select"), GTK_RESPONSE_OK,

	                                                     NULL);

	gtk_dialog_set_default_response (GTK_DIALOG (dialog), GTK_RESPONSE_OK);

	scrolled_window = gtk_scrolled_window_new (NULL, NULL);

	gtk_widget_set_size_request (scrolled_window, 325, 350);

	gtk_widget_show (scrolled_window);

	gtk_widget_set_hexpand (scrolled_window, TRUE);

	gtk_widget_set_vexpand (scrolled_window, TRUE);

	content_area = gtk_dialog_get_content_area (GTK_DIALOG (dialog));

	gtk_container_add (GTK_CONTAINER (content_area), scrolled_window);

	priv->chooser = GTK_SOURCE_STYLE_SCHEME_CHOOSER_WIDGET (gtk_source_style_scheme_chooser_widget_new ());

	gtk_widget_show (GTK_WIDGET (priv->chooser));

	gtk_source_style_scheme_chooser_set_style_scheme (GTK_SOURCE_STYLE_SCHEME_CHOOSER (priv->chooser),

	                                                  priv->scheme);

	gtk_container_add (GTK_CONTAINER (scrolled_window), GTK_WIDGET (priv->chooser));

	if (gtk_widget_is_toplevel (parent) && GTK_IS_WINDOW (parent))

	{

		if (GTK_WINDOW (parent) != gtk_window_get_transient_for (GTK_WINDOW (dialog)))

		{

			gtk_window_set_transient_for (GTK_WINDOW (dialog), GTK_WINDOW (parent));

		}

		gtk_window_set_modal (GTK_WINDOW (dialog),

		                      gtk_window_get_modal (GTK_WINDOW (parent)));

	}

	g_signal_connect (dialog, "response",

	                  G_CALLBACK (dialog_response), button);

	g_signal_connect (dialog, "destroy",

	                  G_CALLBACK (dialog_destroy), button);

}

static void

gtk_source_style_scheme_chooser_button_clicked (GtkButton *button)

{

	GtkSourceStyleSchemeChooserButton *cbutton = GTK_SOURCE_STYLE_SCHEME_CHOOSER_BUTTON (button);

	GtkSourceStyleSchemeChooserButtonPrivate *priv = GET_PRIV (cbutton);

	ensure_dialog (cbutton);

	gtk_source_style_scheme_chooser_set_style_scheme (GTK_SOURCE_STYLE_SCHEME_CHOOSER (priv->chooser),

	                                                  priv->scheme);

	gtk_window_present (GTK_WINDOW (priv->dialog));

}

static void

gtk_source_style_scheme_chooser_button_class_init (GtkSourceStyleSchemeChooserButtonClass *klass)

{

	GObjectClass *object_class = G_OBJECT_CLASS (klass);

	GtkButtonClass *button_class = GTK_BUTTON_CLASS (klass);

	object_class->dispose = gtk_source_style_scheme_chooser_button_dispose;

	object_class->get_property = gtk_source_style_scheme_chooser_button_get_property;

	object_class->set_property = gtk_source_style_scheme_chooser_button_set_property;

	object_class->constructed = gtk_source_style_scheme_chooser_button_constructed;

	button_class->clicked = gtk_source_style_scheme_chooser_button_clicked;

	g_object_class_override_property (object_class, PROP_STYLE_SCHEME, "style-scheme");

}

static void

gtk_source_style_scheme_chooser_button_init (GtkSourceStyleSchemeChooserButton *button)

{

}

static GtkSourceStyleScheme *

gtk_source_style_scheme_chooser_button_get_style_scheme (GtkSourceStyleSchemeChooser *chooser)

{

	GtkSourceStyleSchemeChooserButton *button = GTK_SOURCE_STYLE_SCHEME_CHOOSER_BUTTON (chooser);

	GtkSourceStyleSchemeChooserButtonPrivate *priv = GET_PRIV (button);

	return priv->scheme;

}

static void

gtk_source_style_scheme_chooser_button_update_label (GtkSourceStyleSchemeChooserButton *button)

{

	GtkSourceStyleSchemeChooserButtonPrivate *priv = GET_PRIV (button);

	const gchar *label;

	label = priv->scheme != NULL ? gtk_source_style_scheme_get_name (priv->scheme) : NULL;

	gtk_button_set_label (GTK_BUTTON (button), label);

}

static void

gtk_source_style_scheme_chooser_button_set_style_scheme (GtkSourceStyleSchemeChooser *chooser,

                                                         GtkSourceStyleScheme        *scheme)

{

	GtkSourceStyleSchemeChooserButton *button = GTK_SOURCE_STYLE_SCHEME_CHOOSER_BUTTON (chooser);

	GtkSourceStyleSchemeChooserButtonPrivate *priv = GET_PRIV (button);

	if (g_set_object (&priv->scheme, scheme))

	{

		gtk_source_style_scheme_chooser_button_update_label (button);

		g_object_notify (G_OBJECT (button), "style-scheme");

	}

}

static void

gtk_source_style_scheme_chooser_button_style_scheme_chooser_interface_init (GtkSourceStyleSchemeChooserInterface *iface)

{

	iface->get_style_scheme = gtk_source_style_scheme_chooser_button_get_style_scheme;

	iface->set_style_scheme = gtk_source_style_scheme_chooser_button_set_style_scheme;

}

/**

 * gtk_source_style_scheme_chooser_button_new:

 *

 * Creates a new #GtkSourceStyleSchemeChooserButton.

 *

 * Returns: a new #GtkSourceStyleSchemeChooserButton.

 *

 * Since: 3.16

 */

GtkWidget *

gtk_source_style_scheme_chooser_button_new (void)

{

	return g_object_new (GTK_SOURCE_TYPE_STYLE_SCHEME_CHOOSER_BUTTON, NULL);

}