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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"
#if PLATFORM(X11)
#include <WebCore/GLContext.h>
#include <WebCore/GLDisplay.h>
#include <WebCore/XErrorTrapper.h>
#include <X11/Xatom.h>
#include <epoxy/egl.h>
#include <gtk/gtk.h>
#if USE(GTK4)
#include <gdk/x11/gdkx.h>
#else
#include <gdk/gdkx.h>
#endif
namespace WebKit {
using namespace WebCore;
bool Display::isX11() const
{
return GDK_IS_X11_DISPLAY(m_gdkDisplay.get());
}
bool Display::initializeGLDisplayX11() const
{
if (!isX11())
return false;
#if USE(GTK4)
m_glDisplay = GLDisplay::create(gdk_x11_display_get_egl_display(m_gdkDisplay.get()));
if (m_glDisplay)
return true;
#endif
auto* xDisplay = GDK_DISPLAY_XDISPLAY(m_gdkDisplay.get());
const char* extensions = eglQueryString(nullptr, EGL_EXTENSIONS);
if (GLContext::isExtensionSupported(extensions, "EGL_KHR_platform_base"))
m_glDisplay = GLDisplay::create(eglGetPlatformDisplay(EGL_PLATFORM_X11_KHR, xDisplay, nullptr));
if (!m_glDisplay && GLContext::isExtensionSupported(extensions, "EGL_EXT_platform_base"))
m_glDisplay = GLDisplay::create(eglGetPlatformDisplayEXT(EGL_PLATFORM_X11_KHR, xDisplay, nullptr));
if (!m_glDisplay)
m_glDisplay = GLDisplay::create(eglGetDisplay(xDisplay));
if (m_glDisplay) {
m_glDisplayOwned = true;
return true;
}
return false;
}
String Display::accessibilityBusAddressX11() const
{
auto* xDisplay = GDK_DISPLAY_XDISPLAY(m_gdkDisplay.get());
Atom atspiBusAtom = XInternAtom(xDisplay, "AT_SPI_BUS", False);
Atom type;
int format;
unsigned long itemCount, bytesAfter;
unsigned char* data = nullptr;
XErrorTrapper trapper(xDisplay, XErrorTrapper::Policy::Ignore);
WTF_ALLOW_UNSAFE_BUFFER_USAGE_BEGIN // GTK port.
XGetWindowProperty(xDisplay, RootWindowOfScreen(DefaultScreenOfDisplay(xDisplay)), atspiBusAtom, 0L, 8192, False, XA_STRING, &type, &format, &itemCount, &bytesAfter, &data);
WTF_ALLOW_UNSAFE_BUFFER_USAGE_END
auto atspiBusAddress = String::fromUTF8(reinterpret_cast<char*>(data));
if (data)
XFree(data);
return atspiBusAddress;
}
} // namespace WebKit
#endif // PLATFORM(X11)
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