From aa77c26b60b54cbc5099dc94491288c9c6804d63 Mon Sep 17 00:00:00 2001
From: Luke Wilde <lukew@serenityos.org>
Date: Sat, 4 Jun 2022 04:33:00 +0100
Subject: [PATCH] LibWeb/WebGL: Add extensions APIs to
 WebGLRenderingContextBase

These currently return nothing, as we don't currently support any WebGL
extensions.
---
 .../WebGL/WebGLRenderingContextBase.cpp       | 22 +++++++++++++++++++
 .../LibWeb/WebGL/WebGLRenderingContextBase.h  |  3 +++
 .../WebGL/WebGLRenderingContextBase.idl       |  3 +++
 3 files changed, 28 insertions(+)

diff --git a/Userland/Libraries/LibWeb/WebGL/WebGLRenderingContextBase.cpp b/Userland/Libraries/LibWeb/WebGL/WebGLRenderingContextBase.cpp
index e03faa92ef..28c2d0d1d0 100644
--- a/Userland/Libraries/LibWeb/WebGL/WebGLRenderingContextBase.cpp
+++ b/Userland/Libraries/LibWeb/WebGL/WebGLRenderingContextBase.cpp
@@ -71,6 +71,28 @@ void WebGLRenderingContextBase::needs_to_present()
     m_canvas_element->layout_node()->set_needs_display();
 }
 
+Optional<Vector<String>> WebGLRenderingContextBase::get_supported_extensions() const
+{
+    if (m_context_lost)
+        return Optional<Vector<String>> {};
+
+    dbgln_if(WEBGL_CONTEXT_DEBUG, "WebGLRenderingContextBase::get_supported_extensions()");
+
+    // FIXME: We don't currently support any extensions.
+    return Vector<String> {};
+}
+
+JS::Object* WebGLRenderingContextBase::get_extension(String const& name) const
+{
+    if (m_context_lost)
+        return nullptr;
+
+    dbgln_if(WEBGL_CONTEXT_DEBUG, "WebGLRenderingContextBase::get_extension(name='{}')", name);
+
+    // FIXME: We don't currently support any extensions.
+    return nullptr;
+}
+
 void WebGLRenderingContextBase::clear(GLbitfield mask)
 {
     if (m_context_lost)
diff --git a/Userland/Libraries/LibWeb/WebGL/WebGLRenderingContextBase.h b/Userland/Libraries/LibWeb/WebGL/WebGLRenderingContextBase.h
index 3e03e61d3b..2942133cb5 100644
--- a/Userland/Libraries/LibWeb/WebGL/WebGLRenderingContextBase.h
+++ b/Userland/Libraries/LibWeb/WebGL/WebGLRenderingContextBase.h
@@ -23,6 +23,9 @@ public:
 
     void present();
 
+    Optional<Vector<String>> get_supported_extensions() const;
+    JS::Object* get_extension(String const& name) const;
+
     void clear(GLbitfield mask);
     void clear_color(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha);
 
diff --git a/Userland/Libraries/LibWeb/WebGL/WebGLRenderingContextBase.idl b/Userland/Libraries/LibWeb/WebGL/WebGLRenderingContextBase.idl
index a2bb454da1..caf0647372 100644
--- a/Userland/Libraries/LibWeb/WebGL/WebGLRenderingContextBase.idl
+++ b/Userland/Libraries/LibWeb/WebGL/WebGLRenderingContextBase.idl
@@ -18,6 +18,9 @@ interface mixin WebGLRenderingContextBase {
     //       IDL code generator. This also allows us to handle the return type ourselves instead of adding the complexity of the
     //       code generator working out the return type and returning the appropriate value to return on context loss.
 
+    sequence<DOMString>? getSupportedExtensions();
+    object? getExtension(DOMString name);
+
     undefined clear(GLbitfield mask);
     undefined clearColor(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha);