Filter out webidl files based on special comments, and feature-gate webxr interfaces. (#34348)

* Filter out webidl files based on skip-if directives.

Signed-off-by: Josh Matthews <josh@joshmatthews.net>

* script: Don't build XR functionality without webxr feature.

Signed-off-by: Josh Matthews <josh@joshmatthews.net>

* Fix tidy.

Signed-off-by: Josh Matthews <josh@joshmatthews.net>

* script: Adjust imports for file movement.

Signed-off-by: Josh Matthews <josh@joshmatthews.net>

* Fix clippy.

Signed-off-by: Josh Matthews <josh@joshmatthews.net>

* Formatting.

Signed-off-by: Josh Matthews <josh@joshmatthews.net>

* Clean up webxr module import.

Co-authored-by: Samson <16504129+sagudev@users.noreply.github.com>
Signed-off-by: Josh Matthews <josh@joshmatthews.net>

---------

Signed-off-by: Josh Matthews <josh@joshmatthews.net>
Co-authored-by: Samson <16504129+sagudev@users.noreply.github.com>

components/script/dom/webxr/xrwebglbinding.rs

@@ -0,0 +1,168 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+
+use dom_struct::dom_struct;
+use js::rust::HandleObject;
+
+use crate::dom::bindings::codegen::Bindings::XRViewBinding::XREye;
+use crate::dom::bindings::codegen::Bindings::XRWebGLBindingBinding::XRWebGLBinding_Binding::XRWebGLBindingMethods;
+use crate::dom::bindings::codegen::Bindings::WebGLRenderingContextBinding::WebGLRenderingContext_Binding::WebGLRenderingContextMethods;
+use crate::dom::bindings::codegen::Bindings::XRWebGLBindingBinding::{
+    XRCubeLayerInit, XRCylinderLayerInit, XREquirectLayerInit, XRProjectionLayerInit,
+    XRQuadLayerInit, XRTextureType,
+};
+use crate::dom::bindings::codegen::UnionTypes::WebGLRenderingContextOrWebGL2RenderingContext;
+use crate::dom::bindings::error::{Error, Fallible};
+use crate::dom::bindings::reflector::{reflect_dom_object_with_proto, Reflector};
+use crate::dom::bindings::root::{Dom, DomRoot};
+use crate::dom::webglrenderingcontext::WebGLRenderingContext;
+use crate::dom::window::Window;
+use crate::dom::xrcompositionlayer::XRCompositionLayer;
+use crate::dom::xrcubelayer::XRCubeLayer;
+use crate::dom::xrcylinderlayer::XRCylinderLayer;
+use crate::dom::xrequirectlayer::XREquirectLayer;
+use crate::dom::xrframe::XRFrame;
+use crate::dom::xrprojectionlayer::XRProjectionLayer;
+use crate::dom::xrquadlayer::XRQuadLayer;
+use crate::dom::xrsession::XRSession;
+use crate::dom::xrview::XRView;
+use crate::dom::xrwebglsubimage::XRWebGLSubImage;
+use crate::script_runtime::CanGc;
+
+#[dom_struct]
+pub struct XRWebGLBinding {
+    reflector: Reflector,
+    session: Dom<XRSession>,
+    context: Dom<WebGLRenderingContext>,
+}
+
+impl XRWebGLBinding {
+    pub fn new_inherited(session: &XRSession, context: &WebGLRenderingContext) -> XRWebGLBinding {
+        XRWebGLBinding {
+            reflector: Reflector::new(),
+            session: Dom::from_ref(session),
+            context: Dom::from_ref(context),
+        }
+    }
+
+    fn new(
+        global: &Window,
+        proto: Option<HandleObject>,
+        session: &XRSession,
+        context: &WebGLRenderingContext,
+        can_gc: CanGc,
+    ) -> DomRoot<XRWebGLBinding> {
+        reflect_dom_object_with_proto(
+            Box::new(XRWebGLBinding::new_inherited(session, context)),
+            global,
+            proto,
+            can_gc,
+        )
+    }
+}
+
+impl XRWebGLBindingMethods<crate::DomTypeHolder> for XRWebGLBinding {
+    /// <https://immersive-web.github.io/layers/#dom-xrwebglbinding-xrwebglbinding>
+    fn Constructor(
+        global: &Window,
+        proto: Option<HandleObject>,
+        can_gc: CanGc,
+        session: &XRSession,
+        context: WebGLRenderingContextOrWebGL2RenderingContext,
+    ) -> Fallible<DomRoot<XRWebGLBinding>> {
+        let context = match context {
+            WebGLRenderingContextOrWebGL2RenderingContext::WebGLRenderingContext(ctx) => ctx,
+            WebGLRenderingContextOrWebGL2RenderingContext::WebGL2RenderingContext(ctx) => {
+                ctx.base_context()
+            },
+        };
+        // Step 2
+        if session.is_ended() {
+            return Err(Error::InvalidState);
+        }
+
+        // step 3
+        if context.IsContextLost() {
+            return Err(Error::InvalidState);
+        }
+
+        // Step 4
+        if !session.is_immersive() {
+            return Err(Error::InvalidState);
+        };
+
+        // Step 5 throw an InvalidStateError If context’s XR compatible boolean is false.
+
+        Ok(XRWebGLBinding::new(
+            global, proto, session, &context, can_gc,
+        ))
+    }
+
+    /// <https://immersive-web.github.io/layers/#dom-xrwebglbinding-createprojectionlayer>
+    fn CreateProjectionLayer(
+        &self,
+        _: XRTextureType,
+        _: &XRProjectionLayerInit,
+    ) -> Fallible<DomRoot<XRProjectionLayer>> {
+        // https://github.com/servo/servo/issues/27468
+        Err(Error::NotSupported)
+    }
+
+    /// <https://immersive-web.github.io/layers/#dom-xrwebglbinding-createquadlayer>
+    fn CreateQuadLayer(
+        &self,
+        _: XRTextureType,
+        _: &Option<XRQuadLayerInit>,
+    ) -> Fallible<DomRoot<XRQuadLayer>> {
+        // https://github.com/servo/servo/issues/27493
+        Err(Error::NotSupported)
+    }
+
+    /// <https://immersive-web.github.io/layers/#dom-xrwebglbinding-createcylinderlayer>
+    fn CreateCylinderLayer(
+        &self,
+        _: XRTextureType,
+        _: &Option<XRCylinderLayerInit>,
+    ) -> Fallible<DomRoot<XRCylinderLayer>> {
+        // https://github.com/servo/servo/issues/27493
+        Err(Error::NotSupported)
+    }
+
+    /// <https://immersive-web.github.io/layers/#dom-xrwebglbinding-createequirectlayer>
+    fn CreateEquirectLayer(
+        &self,
+        _: XRTextureType,
+        _: &Option<XREquirectLayerInit>,
+    ) -> Fallible<DomRoot<XREquirectLayer>> {
+        // https://github.com/servo/servo/issues/27493
+        Err(Error::NotSupported)
+    }
+
+    /// <https://immersive-web.github.io/layers/#dom-xrwebglbinding-createcubelayer>
+    fn CreateCubeLayer(&self, _: &Option<XRCubeLayerInit>) -> Fallible<DomRoot<XRCubeLayer>> {
+        // https://github.com/servo/servo/issues/27493
+        Err(Error::NotSupported)
+    }
+
+    /// <https://immersive-web.github.io/layers/#dom-xrwebglbinding-getsubimage>
+    fn GetSubImage(
+        &self,
+        _: &XRCompositionLayer,
+        _: &XRFrame,
+        _: XREye,
+    ) -> Fallible<DomRoot<XRWebGLSubImage>> {
+        // https://github.com/servo/servo/issues/27468
+        Err(Error::NotSupported)
+    }
+
+    /// <https://immersive-web.github.io/layers/#dom-xrwebglbinding-getviewsubimage>
+    fn GetViewSubImage(
+        &self,
+        _: &XRProjectionLayer,
+        _: &XRView,
+    ) -> Fallible<DomRoot<XRWebGLSubImage>> {
+        // https://github.com/servo/servo/issues/27468
+        Err(Error::NotSupported)
+    }
+}