diff --git a/css/geometry-1/interfaces.html b/css/geometry-1/interfaces.html
new file mode 100644
index 00000000000000..74d2499f72bdf3
--- /dev/null
+++ b/css/geometry-1/interfaces.html
@@ -0,0 +1,8 @@
+
+
+Geometry APIs interface IDL tests
+
+
+
+
+
diff --git a/css/geometry-1/interfaces.js b/css/geometry-1/interfaces.js
new file mode 100644
index 00000000000000..d30dd99340c2ec
--- /dev/null
+++ b/css/geometry-1/interfaces.js
@@ -0,0 +1,19 @@
+"use strict";
+
+var idlArray = new IdlArray();
+
+function doTest(idl) {
+ idlArray.add_idls(idl);
+ idlArray.add_objects({
+ DOMPoint: ["new DOMPoint()"],
+ DOMRect: ["new DOMRect()"],
+ DOMMatrix: ["new DOMMatrix()"],
+ });
+ idlArray.test();
+ done();
+}
+
+promise_test(function() {
+ return fetch("/interfaces/geometry.idl").then(response => response.text())
+ .then(doTest);
+}, "Test driver");
diff --git a/css/geometry-1/interfaces.worker.js b/css/geometry-1/interfaces.worker.js
new file mode 100644
index 00000000000000..1a5cf792b810f0
--- /dev/null
+++ b/css/geometry-1/interfaces.worker.js
@@ -0,0 +1,5 @@
+"use strict";
+
+importScripts("/resources/testharness.js");
+importScripts("/resources/WebIDLParser.js", "/resources/idlharness.js");
+importScripts("interfaces.js");
diff --git a/interfaces/geometry.idl b/interfaces/geometry.idl
new file mode 100644
index 00000000000000..87502f9eaf103a
--- /dev/null
+++ b/interfaces/geometry.idl
@@ -0,0 +1,267 @@
+[Constructor(optional unrestricted double x = 0, optional unrestricted double y = 0,
+ optional unrestricted double z = 0, optional unrestricted double w = 1),
+ Exposed=(Window,Worker),
+ Serializable]
+interface DOMPointReadOnly {
+ [NewObject] static DOMPointReadOnly fromPoint(optional DOMPointInit other);
+
+ readonly attribute unrestricted double x;
+ readonly attribute unrestricted double y;
+ readonly attribute unrestricted double z;
+ readonly attribute unrestricted double w;
+
+ DOMPoint matrixTransform(optional DOMMatrixInit matrix);
+
+ serializer = { attribute };
+};
+
+[Constructor(optional unrestricted double x = 0, optional unrestricted double y = 0,
+ optional unrestricted double z = 0, optional unrestricted double w = 1),
+ Exposed=(Window,Worker),
+ Serializable,
+ LegacyWindowAlias=SVGPoint]
+interface DOMPoint : DOMPointReadOnly {
+ [NewObject] static DOMPoint fromPoint(optional DOMPointInit other);
+
+ inherit attribute unrestricted double x;
+ inherit attribute unrestricted double y;
+ inherit attribute unrestricted double z;
+ inherit attribute unrestricted double w;
+};
+
+dictionary DOMPointInit {
+ unrestricted double x = 0;
+ unrestricted double y = 0;
+ unrestricted double z = 0;
+ unrestricted double w = 1;
+};
+
+[Constructor(optional unrestricted double x = 0, optional unrestricted double y = 0,
+ optional unrestricted double width = 0, optional unrestricted double height = 0),
+ Exposed=(Window,Worker),
+ Serializable]
+interface DOMRectReadOnly {
+ [NewObject] static DOMRectReadOnly fromRect(optional DOMRectInit other);
+
+ readonly attribute unrestricted double x;
+ readonly attribute unrestricted double y;
+ readonly attribute unrestricted double width;
+ readonly attribute unrestricted double height;
+ readonly attribute unrestricted double top;
+ readonly attribute unrestricted double right;
+ readonly attribute unrestricted double bottom;
+ readonly attribute unrestricted double left;
+
+ serializer = { attribute };
+};
+
+[Constructor(optional unrestricted double x = 0, optional unrestricted double y = 0,
+ optional unrestricted double width = 0, optional unrestricted double height = 0),
+ Exposed=(Window,Worker),
+ Serializable,
+ LegacyWindowAlias=SVGRect]
+interface DOMRect : DOMRectReadOnly {
+ [NewObject] static DOMRect fromRect(optional DOMRectInit other);
+
+ inherit attribute unrestricted double x;
+ inherit attribute unrestricted double y;
+ inherit attribute unrestricted double width;
+ inherit attribute unrestricted double height;
+};
+
+dictionary DOMRectInit {
+ unrestricted double x = 0;
+ unrestricted double y = 0;
+ unrestricted double width = 0;
+ unrestricted double height = 0;
+};
+
+[Constructor(optional DOMPointInit p1, optional DOMPointInit p2,
+ optional DOMPointInit p3, optional DOMPointInit p4),
+ Exposed=(Window,Worker),
+ Serializable]
+interface DOMQuad {
+ [NewObject] static DOMQuad fromRect(optional DOMRectInit other);
+ [NewObject] static DOMQuad fromQuad(optional DOMQuadInit other);
+
+ [SameObject] readonly attribute DOMPoint p1;
+ [SameObject] readonly attribute DOMPoint p2;
+ [SameObject] readonly attribute DOMPoint p3;
+ [SameObject] readonly attribute DOMPoint p4;
+ [NewObject] DOMRect getBounds();
+
+ serializer = { attribute };
+};
+
+dictionary DOMQuadInit {
+ DOMPointInit p1;
+ DOMPointInit p2;
+ DOMPointInit p3;
+ DOMPointInit p4;
+};
+
+[Constructor(optional (DOMString or sequence) init),
+ Exposed=(Window,Worker),
+ Serializable]
+interface DOMMatrixReadOnly {
+ [NewObject] static DOMMatrixReadOnly fromMatrix(optional DOMMatrixInit other);
+ [NewObject] static DOMMatrixReadOnly fromFloat32Array(Float32Array array32);
+ [NewObject] static DOMMatrixReadOnly fromFloat64Array(Float64Array array64);
+
+ // These attributes are simple aliases for certain elements of the 4x4 matrix
+ readonly attribute unrestricted double a;
+ readonly attribute unrestricted double b;
+ readonly attribute unrestricted double c;
+ readonly attribute unrestricted double d;
+ readonly attribute unrestricted double e;
+ readonly attribute unrestricted double f;
+
+ readonly attribute unrestricted double m11;
+ readonly attribute unrestricted double m12;
+ readonly attribute unrestricted double m13;
+ readonly attribute unrestricted double m14;
+ readonly attribute unrestricted double m21;
+ readonly attribute unrestricted double m22;
+ readonly attribute unrestricted double m23;
+ readonly attribute unrestricted double m24;
+ readonly attribute unrestricted double m31;
+ readonly attribute unrestricted double m32;
+ readonly attribute unrestricted double m33;
+ readonly attribute unrestricted double m34;
+ readonly attribute unrestricted double m41;
+ readonly attribute unrestricted double m42;
+ readonly attribute unrestricted double m43;
+ readonly attribute unrestricted double m44;
+
+ readonly attribute boolean is2D;
+ readonly attribute boolean isIdentity;
+
+ // Immutable transform methods
+ [NewObject] DOMMatrix translate(optional unrestricted double tx = 0,
+ optional unrestricted double ty = 0,
+ optional unrestricted double tz = 0);
+ [NewObject] DOMMatrix scale(optional unrestricted double scaleX = 1,
+ optional unrestricted double scaleY,
+ optional unrestricted double scaleZ = 1,
+ optional unrestricted double originX = 0,
+ optional unrestricted double originY = 0,
+ optional unrestricted double originZ = 0);
+ [NewObject] DOMMatrix scale3d(optional unrestricted double scale = 1,
+ optional unrestricted double originX = 0,
+ optional unrestricted double originY = 0,
+ optional unrestricted double originZ = 0);
+ [NewObject] DOMMatrix rotate(optional unrestricted double rotX = 0,
+ optional unrestricted double rotY,
+ optional unrestricted double rotZ);
+ [NewObject] DOMMatrix rotateFromVector(optional unrestricted double x = 0,
+ optional unrestricted double y = 0);
+ [NewObject] DOMMatrix rotateAxisAngle(optional unrestricted double x = 0,
+ optional unrestricted double y = 0,
+ optional unrestricted double z = 0,
+ optional unrestricted double angle = 0);
+ [NewObject] DOMMatrix skewX(optional unrestricted double sx = 0);
+ [NewObject] DOMMatrix skewY(optional unrestricted double sy = 0);
+ [NewObject] DOMMatrix multiply(optional DOMMatrixInit other);
+ [NewObject] DOMMatrix flipX();
+ [NewObject] DOMMatrix flipY();
+ [NewObject] DOMMatrix inverse();
+
+ [NewObject] DOMPoint transformPoint(optional DOMPointInit point);
+ [NewObject] Float32Array toFloat32Array();
+ [NewObject] Float64Array toFloat64Array();
+
+ [Exposed=Window] stringifier;
+ serializer = { attribute };
+};
+
+[Constructor(optional (DOMString or sequence) init),
+ Exposed=(Window,Worker),
+ Serializable,
+ LegacyWindowAlias=(SVGMatrix,WebKitCSSMatrix)]
+interface DOMMatrix : DOMMatrixReadOnly {
+ [NewObject] static DOMMatrix fromMatrix(optional DOMMatrixInit other);
+ [NewObject] static DOMMatrix fromFloat32Array(Float32Array array32);
+ [NewObject] static DOMMatrix fromFloat64Array(Float64Array array64);
+
+ // These attributes are simple aliases for certain elements of the 4x4 matrix
+ inherit attribute unrestricted double a;
+ inherit attribute unrestricted double b;
+ inherit attribute unrestricted double c;
+ inherit attribute unrestricted double d;
+ inherit attribute unrestricted double e;
+ inherit attribute unrestricted double f;
+
+ inherit attribute unrestricted double m11;
+ inherit attribute unrestricted double m12;
+ inherit attribute unrestricted double m13;
+ inherit attribute unrestricted double m14;
+ inherit attribute unrestricted double m21;
+ inherit attribute unrestricted double m22;
+ inherit attribute unrestricted double m23;
+ inherit attribute unrestricted double m24;
+ inherit attribute unrestricted double m31;
+ inherit attribute unrestricted double m32;
+ inherit attribute unrestricted double m33;
+ inherit attribute unrestricted double m34;
+ inherit attribute unrestricted double m41;
+ inherit attribute unrestricted double m42;
+ inherit attribute unrestricted double m43;
+ inherit attribute unrestricted double m44;
+
+ // Mutable transform methods
+ DOMMatrix multiplySelf(optional DOMMatrixInit other);
+ DOMMatrix preMultiplySelf(optional DOMMatrixInit other);
+ DOMMatrix translateSelf(optional unrestricted double tx = 0,
+ optional unrestricted double ty = 0,
+ optional unrestricted double tz = 0);
+ DOMMatrix scaleSelf(optional unrestricted double scaleX = 1,
+ optional unrestricted double scaleY,
+ optional unrestricted double scaleZ = 1,
+ optional unrestricted double originX = 0,
+ optional unrestricted double originY = 0,
+ optional unrestricted double originZ = 0);
+ DOMMatrix scale3dSelf(optional unrestricted double scale = 1,
+ optional unrestricted double originX = 0,
+ optional unrestricted double originY = 0,
+ optional unrestricted double originZ = 0);
+ DOMMatrix rotateSelf(optional unrestricted double rotX = 0,
+ optional unrestricted double rotY,
+ optional unrestricted double rotZ);
+ DOMMatrix rotateFromVectorSelf(optional unrestricted double x = 0,
+ optional unrestricted double y = 0);
+ DOMMatrix rotateAxisAngleSelf(optional unrestricted double x = 0,
+ optional unrestricted double y = 0,
+ optional unrestricted double z = 0,
+ optional unrestricted double angle = 0);
+ DOMMatrix skewXSelf(optional unrestricted double sx = 0);
+ DOMMatrix skewYSelf(optional unrestricted double sy = 0);
+ DOMMatrix invertSelf();
+
+ [Exposed=Window] DOMMatrix setMatrixValue(DOMString transformList);
+};
+
+dictionary DOMMatrixInit {
+ unrestricted double a;
+ unrestricted double b;
+ unrestricted double c;
+ unrestricted double d;
+ unrestricted double e;
+ unrestricted double f;
+ unrestricted double m11;
+ unrestricted double m12;
+ unrestricted double m13 = 0;
+ unrestricted double m14 = 0;
+ unrestricted double m21;
+ unrestricted double m22;
+ unrestricted double m23 = 0;
+ unrestricted double m24 = 0;
+ unrestricted double m31 = 0;
+ unrestricted double m32 = 0;
+ unrestricted double m33 = 1;
+ unrestricted double m34 = 0;
+ unrestricted double m41;
+ unrestricted double m42;
+ unrestricted double m43 = 0;
+ unrestricted double m44 = 1;
+ boolean is2D;
+};