gstreamer/subprojects/gst-plugins-bad/ext/wpe/wpe-extension/gstwpeextension.c

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/* Copyright (C) <2021> Thibault Saunier <tsaunier@igalia.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "gstwpeextension.h"
#include <errno.h>
#include <fcntl.h>
#include <sys/socket.h>
#include <gst/gst.h>
#include <gmodule.h>
#include <gio/gunixfdlist.h>
GST_DEBUG_CATEGORY_STATIC (wpe_extension_debug);
#define GST_CAT_DEFAULT wpe_extension_debug
#if USE_WPE2
#define WebKitWebExtension WebKitWebProcessExtension
#define extension_initialize webkit_web_process_extension_initialize
#define extension_send_message_to_context webkit_web_process_extension_send_message_to_context
#else
#define extension_initialize webkit_web_extension_initialize
#define extension_send_message_to_context webkit_web_extension_send_message_to_context
#endif
G_MODULE_EXPORT void extension_initialize (WebKitWebExtension * extension);
static WebKitWebExtension *global_extension = NULL;
#if !USE_WPE2
static void
console_message_cb (WebKitWebPage * page,
WebKitConsoleMessage * console_message, gpointer data)
{
char *message = g_strdup (webkit_console_message_get_text (console_message));
gst_wpe_extension_send_message (webkit_user_message_new
("gstwpe.console_message", g_variant_new ("(s)", message)), NULL, NULL,
NULL);
g_free (message);
}
#endif
static void
web_page_created_callback (WebKitWebExtension * extension,
WebKitWebPage * web_page, gpointer data)
{
// WebKitConsoleMessage is deprecated in wpe1 and has no replacement in wpe2.
#if !USE_WPE2
g_signal_connect (web_page, "console-message-sent",
G_CALLBACK (console_message_cb), NULL);
#endif
}
void
extension_initialize (WebKitWebExtension * extension)
{
g_return_if_fail (!global_extension);
gst_init (NULL, NULL);
GST_DEBUG_CATEGORY_INIT (wpe_extension_debug, "wpewebextension", 0,
"GstWPE WebExtension");
/* Register our own audio sink to */
gst_element_register (NULL, "gstwpeaudiosink", GST_RANK_PRIMARY + 500,
gst_wpe_audio_sink_get_type ());
gst_object_unref (g_object_new (gst_wpe_bus_msg_forwarder_get_type (), NULL));
global_extension = extension;
GST_INFO ("Setting as global extension.");
g_signal_connect (global_extension, "page-created",
G_CALLBACK (web_page_created_callback), NULL);
}
void
gst_wpe_extension_send_message (WebKitUserMessage * msg,
GCancellable * cancellable, GAsyncReadyCallback cb, gpointer udata)
{
extension_send_message_to_context (global_extension, msg, cancellable, cb,
udata);
}