Implement DOMPoint and DOMPointReadOnly

Passes some but not all WPT tests. One failure is caused by an issue in codegen for the `DOMPointInit` dictionary, the others by outdated tests: Gecko implements an old version of the spec that overloaded the `DOMPoint` constructor to optionally take an object as the first argument, and made `DOMPointReadOnly` non-constructible.

components/script/dom/dompoint.rs

@@ -0,0 +1,69 @@
+/* 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 http://mozilla.org/MPL/2.0/. */
+
+use dom::bindings::codegen::Bindings::DOMPointBinding::{DOMPointMethods, Wrap};
+use dom::bindings::codegen::Bindings::DOMPointReadOnlyBinding::DOMPointReadOnlyMethods;
+use dom::bindings::error::Fallible;
+use dom::bindings::global::GlobalRef;
+use dom::bindings::js::Root;
+use dom::bindings::utils::reflect_dom_object;
+use dom::dompointreadonly::{DOMPointReadOnly, DOMPointWriteMethods};
+
+// http://dev.w3.org/fxtf/geometry/Overview.html#dompoint
+#[dom_struct]
+pub struct DOMPoint {
+    point: DOMPointReadOnly
+}
+
+impl DOMPoint {
+    fn new_inherited(x: f64, y: f64, z: f64, w: f64) -> DOMPoint {
+        DOMPoint {
+            point: DOMPointReadOnly::new_inherited(x, y, z, w),
+        }
+    }
+
+    pub fn new(global: GlobalRef, x: f64, y: f64, z: f64, w: f64) -> Root<DOMPoint> {
+        reflect_dom_object(box DOMPoint::new_inherited(x, y, z, w), global, Wrap)
+    }
+
+    pub fn Constructor(global: GlobalRef,
+                        x: f64, y: f64, z: f64, w: f64) -> Fallible<Root<DOMPoint>> {
+        Ok(DOMPoint::new(global, x, y, z, w))
+    }
+}
+
+impl<'a> DOMPointMethods for &'a DOMPoint {
+    // http://dev.w3.org/fxtf/geometry/Overview.html#dom-dompointreadonly-x
+    fn X(self) -> f64 {
+        self.point.X()
+    }
+    fn SetX(self, value: f64) {
+        self.point.SetX(value);
+    }
+
+    // http://dev.w3.org/fxtf/geometry/Overview.html#dom-dompointreadonly-y
+    fn Y(self) -> f64 {
+        self.point.Y()
+    }
+    fn SetY(self, value: f64) {
+        self.point.SetY(value);
+    }
+
+    // http://dev.w3.org/fxtf/geometry/Overview.html#dom-dompointreadonly-z
+    fn Z(self) -> f64 {
+        self.point.Z()
+    }
+    fn SetZ(self, value: f64) {
+        self.point.SetZ(value);
+    }
+
+    // http://dev.w3.org/fxtf/geometry/Overview.html#dom-dompointreadonly-w
+    fn W(self) -> f64 {
+        self.point.W()
+    }
+    fn SetW(self, value: f64) {
+        self.point.SetW(value);
+    }
+}
+

components/script/dom/dompointreadonly.rs

@@ -0,0 +1,88 @@
+/* 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 http://mozilla.org/MPL/2.0/. */
+
+use dom::bindings::codegen::Bindings::DOMPointReadOnlyBinding::{DOMPointReadOnlyMethods, Wrap};
+use dom::bindings::error::Fallible;
+use dom::bindings::global::GlobalRef;
+use dom::bindings::js::Root;
+use dom::bindings::utils::{Reflector, reflect_dom_object};
+use std::cell::Cell;
+
+// http://dev.w3.org/fxtf/geometry/Overview.html#dompointreadonly
+#[dom_struct]
+pub struct DOMPointReadOnly {
+    reflector_: Reflector,
+    x: Cell<f64>,
+    y: Cell<f64>,
+    z: Cell<f64>,
+    w: Cell<f64>,
+}
+
+impl DOMPointReadOnly {
+    pub fn new_inherited(x: f64, y: f64, z: f64, w: f64) -> DOMPointReadOnly {
+        DOMPointReadOnly {
+            x: Cell::new(x),
+            y: Cell::new(y),
+            z: Cell::new(z),
+            w: Cell::new(w),
+            reflector_: Reflector::new(),
+        }
+    }
+
+    pub fn new(global: GlobalRef, x: f64, y: f64, z: f64, w: f64) -> Root<DOMPointReadOnly> {
+        reflect_dom_object(box DOMPointReadOnly::new_inherited(x, y, z, w), global, Wrap)
+    }
+
+    pub fn Constructor(global: GlobalRef,
+                        x: f64, y: f64, z: f64, w: f64) -> Fallible<Root<DOMPointReadOnly>> {
+        Ok(DOMPointReadOnly::new(global, x, y, z, w))
+    }
+}
+
+impl<'a> DOMPointReadOnlyMethods for &'a DOMPointReadOnly {
+    // http://dev.w3.org/fxtf/geometry/Overview.html#dom-dompointreadonly-x
+    fn X(self) -> f64 {
+        self.x.get()
+    }
+
+    // http://dev.w3.org/fxtf/geometry/Overview.html#dom-dompointreadonly-y
+    fn Y(self) -> f64 {
+        self.y.get()
+    }
+
+    // http://dev.w3.org/fxtf/geometry/Overview.html#dom-dompointreadonly-z
+    fn Z(self) -> f64 {
+        self.z.get()
+    }
+
+    // http://dev.w3.org/fxtf/geometry/Overview.html#dom-dompointreadonly-w
+    fn W(self) -> f64 {
+        self.w.get()
+    }
+}
+
+pub trait DOMPointWriteMethods {
+    fn SetX(self, value: f64);
+    fn SetY(self, value: f64);
+    fn SetZ(self, value: f64);
+    fn SetW(self, value: f64);
+}
+
+impl<'a> DOMPointWriteMethods for &'a DOMPointReadOnly {
+    fn SetX(self, value: f64) {
+        self.x.set(value);
+    }
+
+    fn SetY(self, value: f64) {
+        self.y.set(value);
+    }
+
+    fn SetZ(self, value: f64) {
+        self.z.set(value);
+    }
+
+    fn SetW(self, value: f64) {
+        self.w.set(value);
+    }
+}

components/script/dom/mod.rs

@@ -190,6 +190,8 @@ pub mod canvasrenderingcontext2d;
 pub mod characterdata;
 pub mod css;
 pub mod cssstyledeclaration;
+pub mod dompoint;
+pub mod dompointreadonly;
 pub mod domrect;
 pub mod domrectlist;
 pub mod domstringmap;

components/script/dom/webidls/DOMPoint.webidl

@@ -0,0 +1,22 @@
+/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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 http://mozilla.org/MPL/2.0/.
+ *
+ * The origin of this IDL file is
+ * http://dev.w3.org/fxtf/geometry/
+ *
+ * Copyright © 2012 W3C® (MIT, ERCIM, Keio), All Rights Reserved. W3C
+ * liability, trademark and document use rules apply.
+ */
+
+// http://dev.w3.org/fxtf/geometry/Overview.html#dompoint
+[Constructor(optional unrestricted double x = 0, optional unrestricted double y = 0,
+             optional unrestricted double z = 0, optional unrestricted double w = 1),
+ /*Exposed=(Window,Worker)*/]
+interface DOMPoint : DOMPointReadOnly {
+    inherit attribute unrestricted double x;
+    inherit attribute unrestricted double y;
+    inherit attribute unrestricted double z;
+    inherit attribute unrestricted double w;
+};

components/script/dom/webidls/DOMPointReadOnly.webidl

@@ -0,0 +1,29 @@
+/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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 http://mozilla.org/MPL/2.0/.
+ *
+ * The origin of this IDL file is
+ * http://dev.w3.org/fxtf/geometry/
+ *
+ * Copyright © 2012 W3C® (MIT, ERCIM, Keio), All Rights Reserved. W3C
+ * liability, trademark and document use rules apply.
+ */
+
+// http://dev.w3.org/fxtf/geometry/Overview.html#dompointreadonly
+[Constructor(optional unrestricted double x = 0, optional unrestricted double y = 0,
+             optional unrestricted double z = 0, optional unrestricted double w = 1),
+ /*Exposed=(Window,Worker)*/]
+interface DOMPointReadOnly {
+    readonly attribute unrestricted double x;
+    readonly attribute unrestricted double y;
+    readonly attribute unrestricted double z;
+    readonly attribute unrestricted double w;
+};
+
+dictionary DOMPointInit {
+    unrestricted double x = 0;
+    unrestricted double y = 0;
+    unrestricted double z = 0;
+    unrestricted double w = 1;
+};