/*
 * Web view members and methods for the "about" ("mq-about" internally) scheme
 *
 * 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/>.
 */

/*
 * This scheme reuses the normal-scheme structure and context_menu() and
 * save_file() methods.
 */

#include "schemes.h"

#include <string.h>

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

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

static MqSettings *settings = NULL;

static gboolean
match_uri(const gchar *uri)
{
	return uri && (g_str_has_prefix(uri, "about:") ||
			g_str_has_prefix(uri, "mq-about:"));
}

static void
init_settings(MqConfig *config)
{
	if (settings) {
		return;
	}

	settings = mq_settings_new();
	mq_settings_set_web_context(settings, webkit_web_context_get_default());
	mq_settings_override_bool(settings, "permissions.javascript.enable",
		TRUE);
	mq_settings_connect_config(settings, config);
}

static void
initialize(MqWebView *web_view, MqWebViewScheme G_GNUC_UNUSED *scheme,
	const gchar G_GNUC_UNUSED *uri)
{
	init_settings(mq_web_view_get_config(web_view));

	webkit_web_view_set_settings(WEBKIT_WEB_VIEW(web_view),
		WEBKIT_SETTINGS(settings));
}

static void
finalize(MqWebViewScheme *scheme)
{
	memset(&scheme->normal, 0, sizeof(scheme->normal));
}

static gchar *
rewrite_uri(MqWebView G_GNUC_UNUSED *web_view,
	MqWebViewScheme G_GNUC_UNUSED *scheme, const gchar *uri)
{
	if (g_str_has_prefix(uri, "about:")) {
		return g_strconcat("mq-about:", uri + strlen("about:"), NULL);
	} else {
		return g_strdup(uri);
	}
}

static gchar *
display_uri(MqWebView G_GNUC_UNUSED *web_view,
	MqWebViewScheme G_GNUC_UNUSED *scheme, const gchar *uri)
{
	gchar *rw_uri;
	gchar *query;

	if (g_str_has_prefix(uri, "mq-about:")) {
		rw_uri = g_strconcat("about:", uri + strlen("mq-about:"), NULL);
		query = strchr(rw_uri, '?');
		if (query) {
			query[0] = '\0';
		}
		return rw_uri;
	} else {
		return g_strdup(uri);
	}
}

static gboolean
context_menu(MqWebView *web_view, MqWebViewScheme *scheme,
	WebKitContextMenu *context_menu, GdkEvent *event,
	WebKitHitTestResult *hit_test_result)
{
	return mq_web_view_normal_scheme_methods.context_menu(web_view, scheme,
		context_menu, event, hit_test_result);
}

static void
save_file(MqWebView *web_view, MqWebViewScheme *scheme)
{
	mq_web_view_normal_scheme_methods.save_file(web_view, scheme);
}

MqWebViewSchemeMethods mq_web_view_about_scheme_methods = {
	.match_uri    = match_uri,
	.initialize   = initialize,
	.finalize     = finalize,
	.rewrite_uri  = rewrite_uri,
	.display_uri  = display_uri,
	.context_menu = context_menu,
	.save_file    = save_file,
};