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/*
* Copyright (C) 2024 Igalia S.L.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "Display.h"
#include <WebCore/GLContext.h>
#include <WebCore/GLDisplay.h>
#include <WebCore/GtkVersioning.h>
#include <epoxy/egl.h>
#include <gtk/gtk.h>
#include <mutex>
#include <wtf/NeverDestroyed.h>
#include <wtf/glib/GUniquePtr.h>
namespace WebKit {
using namespace WebCore;
Display& Display::singleton()
{
static LazyNeverDestroyed<Display> display;
static std::once_flag onceFlag;
std::call_once(onceFlag, [] {
display.construct();
});
return display;
}
Display::Display()
{
if (!gtk_init_check(nullptr, nullptr))
return;
m_gdkDisplay = gdk_display_manager_get_default_display(gdk_display_manager_get());
if (!m_gdkDisplay)
return;
g_signal_connect(m_gdkDisplay.get(), "closed", G_CALLBACK(+[](GdkDisplay*, gboolean, gpointer userData) {
auto& display = *static_cast<Display*>(userData);
if (display.m_glDisplay && display.m_glDisplayOwned)
display.m_glDisplay->terminate();
display.m_glDisplay = nullptr;
}), this);
}
Display::~Display()
{
if (m_gdkDisplay)
g_signal_handlers_disconnect_by_data(m_gdkDisplay.get(), this);
}
GLDisplay* Display::glDisplay() const
{
if (m_glInitialized)
return m_glDisplay.get();
m_glInitialized = true;
if (!m_gdkDisplay)
return nullptr;
#if PLATFORM(X11)
if (initializeGLDisplayX11())
return m_glDisplay.get();
#endif
#if PLATFORM(WAYLAND)
if (initializeGLDisplayWayland())
return m_glDisplay.get();
#endif
return nullptr;
}
String Display::accessibilityBusAddress() const
{
if (!m_gdkDisplay)
return { };
#if USE(GTK4)
if (const char* atspiBusAddress = static_cast<const char*>(g_object_get_data(G_OBJECT(m_gdkDisplay.get()), "-gtk-atspi-bus-address")))
return String::fromUTF8(atspiBusAddress);
#endif
#if PLATFORM(X11)
if (isX11())
return accessibilityBusAddressX11();
#endif
return { };
}
#if !PLATFORM(X11)
bool Display::isX11() const
{
return false;
}
#endif
#if !PLATFORM(WAYLAND)
bool Display::isWayland() const
{
return false;
}
#endif
} // namespace WebKit
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