/*
 * Stop/reload button
 *
 * Copyright (C) 2017  Patrick McDermott
 *
 * This file is part of Marquee.
 *
 * Marquee 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 3 of the License, or
 * (at your option) any later version.
 *
 * Marquee 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 Marquee.  If not, see <http://www.gnu.org/licenses/>.
 */

#include "stop-reload-button.h"

#include <glib.h>
#include <gtk/gtk.h>
#include <webkit2/webkit2.h>

#include "../../web-view.h"

struct _MqStopReloadButton {
	GtkToolButton  parent_instance;
	GtkWidget     *stop_icon;
	GtkWidget     *reload_icon;
	MqWebView     *web_view;
};

enum {
	PROP_WEB_VIEW = 1,
	N_PROPERTIES
};

static GParamSpec *obj_properties[N_PROPERTIES] = {NULL,};

struct _MqStopReloadButtonClass {
	GtkToolButtonClass parent_class;
};

G_DEFINE_TYPE(MqStopReloadButton, mq_stop_reload_button, GTK_TYPE_TOOL_BUTTON)

static void
loading_cb(MqWebView *web_view, GParamSpec G_GNUC_UNUSED *param_spec,
	MqStopReloadButton *stop_reload_button)
{
	if (webkit_web_view_is_loading(WEBKIT_WEB_VIEW(web_view))) {
		gtk_tool_button_set_icon_widget(
			GTK_TOOL_BUTTON(stop_reload_button),
			stop_reload_button->stop_icon);
		gtk_tool_button_set_label(
			GTK_TOOL_BUTTON(stop_reload_button), "Stop");
		gtk_widget_set_tooltip_text(
			GTK_WIDGET(stop_reload_button),
			"Stop loading the current page");
	} else {
		gtk_tool_button_set_icon_widget(
			GTK_TOOL_BUTTON(stop_reload_button),
			stop_reload_button->reload_icon);
		gtk_tool_button_set_label(
			GTK_TOOL_BUTTON(stop_reload_button), "Reload");
		gtk_widget_set_tooltip_text(
			GTK_WIDGET(stop_reload_button),
			"Reload the current page");
	}
	gtk_widget_show_all(GTK_WIDGET(stop_reload_button));
}

static void
clicked_cb(MqStopReloadButton *stop_reload_button)
{
	WebKitWebView *web_view;

	web_view = WEBKIT_WEB_VIEW(stop_reload_button->web_view);

	if (webkit_web_view_is_loading(web_view)) {
		webkit_web_view_stop_loading(web_view);
	} else {
		webkit_web_view_reload(web_view);
	}
}

static void
set_web_view(MqStopReloadButton *stop_reload_button, MqWebView *web_view)
{
	stop_reload_button->web_view = web_view;

	g_signal_connect(web_view, "notify::is-loading",
		G_CALLBACK(loading_cb), stop_reload_button);
}

static void
finalize(GObject *object)
{
	MqStopReloadButton *stop_reload_button;

	stop_reload_button = MQ_STOP_RELOAD_BUTTON(object);

	g_object_unref(stop_reload_button->stop_icon);
	g_object_unref(stop_reload_button->reload_icon);

	G_OBJECT_CLASS(mq_stop_reload_button_parent_class)->finalize(object);
}

static void
get_property(GObject *object, guint property_id, GValue *value,
	GParamSpec *param_spec)
{
	switch (property_id) {
		case PROP_WEB_VIEW:
			g_value_set_object(value, NULL);
			break;
		default:
			G_OBJECT_WARN_INVALID_PROPERTY_ID(object, property_id,
				param_spec);
			break;
	}
}

static void
set_property(GObject *object, guint property_id, const GValue *value,
	GParamSpec *param_spec)
{
	MqStopReloadButton *stop_reload_button;

	stop_reload_button = MQ_STOP_RELOAD_BUTTON(object);

	switch (property_id) {
		case PROP_WEB_VIEW:
			set_web_view(stop_reload_button,
				g_value_get_object(value));
			break;
		default:
			G_OBJECT_WARN_INVALID_PROPERTY_ID(object, property_id,
				param_spec);
			break;
	}
}

static void
mq_stop_reload_button_class_init(MqStopReloadButtonClass *klass)
{
	GObjectClass *object_class = G_OBJECT_CLASS(klass);

	object_class->finalize     = finalize;
	object_class->get_property = get_property;
	object_class->set_property = set_property;

	obj_properties[PROP_WEB_VIEW] = g_param_spec_object(
		"web-view",
		"MqWebView",
		"The associated MqWebView instance",
		MQ_TYPE_WEB_VIEW,
		G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY |
		G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB);
	g_object_class_install_properties(object_class, N_PROPERTIES,
		obj_properties);
}

static void
mq_stop_reload_button_init(MqStopReloadButton *stop_reload_button)
{
	/* Stop icon */
	stop_reload_button->stop_icon = gtk_image_new_from_icon_name(
		"process-stop", GTK_ICON_SIZE_SMALL_TOOLBAR);
	g_object_ref_sink(stop_reload_button->stop_icon);

	/* Reload icon */
	stop_reload_button->reload_icon = gtk_image_new_from_icon_name(
		"view-refresh", GTK_ICON_SIZE_SMALL_TOOLBAR);
	g_object_ref_sink(stop_reload_button->reload_icon);

	/* Button */
	gtk_tool_button_set_icon_widget(GTK_TOOL_BUTTON(stop_reload_button),
		stop_reload_button->stop_icon);
	gtk_tool_button_set_label(GTK_TOOL_BUTTON(stop_reload_button), "Stop");
	gtk_widget_set_can_focus(gtk_bin_get_child(GTK_BIN(stop_reload_button)),
		FALSE);
	gtk_widget_set_tooltip_text(GTK_WIDGET(stop_reload_button),
		"Stop loading the current page");
	g_signal_connect(stop_reload_button, "clicked",
		G_CALLBACK(clicked_cb), NULL);
}

GtkToolItem *
mq_stop_reload_button_new(MqWebView *web_view)
{
	return g_object_new(MQ_TYPE_STOP_RELOAD_BUTTON,
		"web-view", web_view,
		NULL);
}