From 0022c403a08bab7008842f9cc768432a98be407b Mon Sep 17 00:00:00 2001 From: Randolf Jung <jrandolf@chromium.org> Date: Mon, 4 Mar 2024 12:56:58 +0100 Subject: [PATCH] Update pointer option processing For specific pointer types, some properties are not supported and should not be configurable and must be set to the default recommended in https://w3c.github.io/pointerevents/#pointerevent-interface (not the interface definition; each property has a default written in their description). --- index.html | 649 ++++++++++++++++++++++++++++++++++++----------------- 1 file changed, 446 insertions(+), 203 deletions(-) diff --git a/index.html b/index.html index a26a833c..1daa6b3e 100644 --- a/index.html +++ b/index.html @@ -8383,124 +8383,240 @@ <h3>Processing actions</h3> given <var>action item</var>, and <var>action</var>:</p> <ol class="algorithm"> - <li><p>Let <var>button</var> be the result - of getting the property <code>button</code> - from <var>action item</var>. - - <li><p>If <var>button</var> is not an <a>Integer</a> greater than or - equal to 0 return <a>error</a> with <a>error code</a> - <a>invalid argument</a>. - - <li><p>Set the <code>button</code> property of <var>action</var> - to <var>button</var>. - - <li><p>Let <var>width</var> be the result - of getting the property <code>width</code> - from <var>action item</var>. - - <li><p>If <var>width</var> is not <a>undefined</a> - and <var>width</var> is not a <a>Number</a> greater than or - equal to 0 return <a>error</a> with <a>error code</a> - <a>invalid argument</a>. - - <li><p>Set the <code>width</code> property of <var>action</var> - to <var>width</var>. - - <li><p>Let <var>height</var> be the result - of getting the property <code>height</code> - from <var>action item</var>. - - <li><p>If <var>height</var> is not <a>undefined</a> - and <var>height</var> is not a <a>Number</a> greater than or - equal to 0 return <a>error</a> with <a>error code</a> - <a>invalid argument</a>. - - <li><p>Set the <code>height</code> property of <var>action</var> - to <var>height</var>. - - <li><p>Let <var>pressure</var> be the result - of getting the property <code>pressure</code> - from <var>action item</var>. - - <li><p>If <var>pressure</var> is not <a>undefined</a> - and <var>pressure</var> is not a <a>Number</a> greater than or - equal to 0 and less than or equal to 1 return <a>error</a> with - <a>error code</a> <a>invalid argument</a>. - - <li><p>Set the <code>pressure</code> property of <var>action</var> - to <var>pressure</var>. - - <li><p>Let <var>tangentialPressure</var> be the result - of getting the property <code>tangentialPressure</code> - from <var>action item</var>. - - <li><p>If <var>tangentialPressure</var> is not <a>undefined</a> - and <var>tangentialPressure</var> is not a <a>Number</a> greater - than or equal to -1 and less than or equal to 1 return <a>error</a> - with <a>error code</a> <a>invalid argument</a>. - - <li><p>Set the <code>tangentialPressure</code> property of <var>action</var> - to <var>tangentialPressure</var>. - - <li><p>Let <var>tiltX</var> be the result - of getting the property <code>tiltX</code> - from <var>action item</var>. - - <li><p>If <var>tiltX</var> is not <a>undefined</a> - and <var>tiltX</var> is not an <a>Integer</a> greater than or - equal to -90 and less than or equal to 90 return <a>error</a> with - <a>error code</a> <a>invalid argument</a>. + <li><p>Let <var>pointerType</var> be equal to + <var>action</var>’s <code>pointerType</code> property. + + <li><p>Run the substeps of the first matching value of <var>pointerType</var> - <li><p>Set the <code>tiltX</code> property of <var>action</var> - to <var>tiltX</var>. + <dl class=switch> + <dt>"<code>mouse</code>" + <dd> + <ol> + <li><p>Let <var>button</var> be the result + of getting the property <code>button</code> + from <var>action item</var>. + + <li><p>If <var>button</var> is not an <a>Integer</a> greater than or + equal to 0 return <a>error</a> with <a>error code</a> + <a>invalid argument</a>. + + <li><p>Set the <code>button</code> property of <var>action</var> + to <var>button</var>. - <li><p>Let <var>tiltY</var> be the result - of getting the property <code>tiltY</code> - from <var>action item</var>. + <li><p>Set the <code>width</code> property of <var>action</var> + to 1. - <li><p>If <var>tiltY</var> is not <a>undefined</a> - and <var>tiltY</var> is not an <a>Integer</a> greater than or - equal to -90 and less than or equal to 90 return <a>error</a> with - <a>error code</a> <a>invalid argument</a>. + <li><p>Set the <code>height</code> property of <var>action</var> + to 1. + + <li><p>If <var>action</var>'s <code>subtype</code> property is + "<code>pointerDown</code>", set the <code>pressure</code> property of + <var>action</var> to 0.5. Otherwise, set the <code>pressure</code> property of + <var>action</var> to 0. - <li><p>Set the <code>tiltY</code> property of <var>action</var> - to <var>tiltY</var>. + <li><p>Set the <code>tangentialPressure</code> property of <var>action</var> + to 0. - <li><p>Let <var>twist</var> be the result - of getting the property <code>twist</code> - from <var>action item</var>. + <li><p>Set the <code>tiltX</code> property of <var>action</var> + to 0. - <li><p>If <var>twist</var> is not <a>undefined</a> - and <var>twist</var> is not an <a>Integer</a> greater than or - equal to 0 and less than or equal to 359 return <a>error</a> with - <a>error code</a> <a>invalid argument</a>. + <li><p>Set the <code>tiltY</code> property of <var>action</var> + to 0. - <li><p>Set the <code>twist</code> property of <var>action</var> - to <var>twist</var>. + <li><p>Set the <code>twist</code> property of <var>action</var> + to 0. - <li><p>Let <var>altitudeAngle</var> be the result - of getting the property <code>altitudeAngle</code> - from <var>action item</var>. + <li><p>Set the <code>altitudeAngle</code> property of <var>action</var> + to π/2. - <li><p>If <var>altitudeAngle</var> is not <a>undefined</a> - and <var>altitudeAngle</var> is not a <a>Number</a> greater than - or equal to 0 and less than or equal to π/2 return <a>error</a> with - <a>error code</a> <a>invalid argument</a>. - - <li><p>Set the <code>altitudeAngle</code> property of <var>action</var> - to <var>altitudeAngle</var>. - - <li><p>Let <var>azimuthAngle</var> be the result - of getting the property <code>azimuthAngle</code> - from <var>action item</var>. + <li><p>Set the <code>azimuthAngle</code> property of <var>action</var> + to 0. + </ol> - <li><p>If <var>azimuthAngle</var> is not <a>undefined</a> - and <var>azimuthAngle</var> is not a <a>Number</a> greater than - or equal to 0 and less than or equal to 2π return <a>error</a> with - <a>error code</a> <a>invalid argument</a>. + <dt>"<code>touch</code>" + <dd> + <ol> + <li><p>Set the <code>button</code> property of <var>action</var> + to 0. + + <li><p>Let <var>width</var> be the result + of getting the property <code>width</code> + from <var>action item</var>. + + <li><p>If <var>width</var> is not <a>undefined</a> + and <var>width</var> is not a <a>Number</a> greater than or + equal to 0 return <a>error</a> with <a>error code</a> + <a>invalid argument</a>. + + <li><p>Set the <code>width</code> property of <var>action</var> + to <var>width</var>. + + <li><p>Let <var>height</var> be the result + of getting the property <code>height</code> + from <var>action item</var>. + + <li><p>If <var>height</var> is not <a>undefined</a> + and <var>height</var> is not a <a>Number</a> greater than or + equal to 0 return <a>error</a> with <a>error code</a> + <a>invalid argument</a>. + + <li><p>Set the <code>height</code> property of <var>action</var> + to <var>height</var>. + + <li><p>Let <var>pressure</var> be the result + of getting the property <code>pressure</code> + from <var>action item</var>. + + <li><p>If <var>pressure</var> is not <a>undefined</a> + and <var>pressure</var> is not a <a>Number</a> greater than or + equal to 0 and less than or equal to 1 return <a>error</a> with + <a>error code</a> <a>invalid argument</a>. + + <li><p>Set the <code>pressure</code> property of <var>action</var> + to <var>pressure</var>. + + <li><p>Set the <code>tangentialPressure</code> property of <var>action</var> + to 0. + + <li><p>Set the <code>tiltX</code> property of <var>action</var> + to 90. + + <li><p>Set the <code>tiltY</code> property of <var>action</var> + to 0. + + <li><p>Set the <code>twist</code> property of <var>action</var> + to 0. + + <li><p>Set the <code>altitudeAngle</code> property of <var>action</var> + to 0. + + <li><p>Set the <code>azimuthAngle</code> property of <var>action</var> + to 0. + </ol> - <li><p>Set the <code>azimuthAngle</code> property of <var>action</var> - to <var>azimuthAngle</var>. + <dt>"<code>pen</code>" + <dd> + <ol> + <li><p>Let <var>button</var> be the result + of getting the property <code>button</code> + from <var>action item</var>. + + <li><p>If <var>button</var> is not an <a>Integer</a> greater than or + equal to 0 return <a>error</a> with <a>error code</a> + <a>invalid argument</a>. + + <li><p>Set the <code>button</code> property of <var>action</var> + to <var>button</var>. + + <li><p>Let <var>width</var> be the result + of getting the property <code>width</code> + from <var>action item</var>. + + <li><p>If <var>width</var> is not <a>undefined</a> + and <var>width</var> is not a <a>Number</a> greater than or + equal to 0 return <a>error</a> with <a>error code</a> + <a>invalid argument</a>. + + <li><p>Set the <code>width</code> property of <var>action</var> + to <var>width</var>. + + <li><p>Let <var>height</var> be the result + of getting the property <code>height</code> + from <var>action item</var>. + + <li><p>If <var>height</var> is not <a>undefined</a> + and <var>height</var> is not a <a>Number</a> greater than or + equal to 0 return <a>error</a> with <a>error code</a> + <a>invalid argument</a>. + + <li><p>Set the <code>height</code> property of <var>action</var> + to <var>height</var>. + + <li><p>Let <var>pressure</var> be the result + of getting the property <code>pressure</code> + from <var>action item</var>. + + <li><p>If <var>pressure</var> is not <a>undefined</a> + and <var>pressure</var> is not a <a>Number</a> greater than or + equal to 0 and less than or equal to 1 return <a>error</a> with + <a>error code</a> <a>invalid argument</a>. + + <li><p>Set the <code>pressure</code> property of <var>action</var> + to <var>pressure</var>. + + <li><p>Let <var>tangentialPressure</var> be the result + of getting the property <code>tangentialPressure</code> + from <var>action item</var>. + + <li><p>If <var>tangentialPressure</var> is not <a>undefined</a> + and <var>tangentialPressure</var> is not a <a>Number</a> greater + than or equal to -1 and less than or equal to 1 return <a>error</a> + with <a>error code</a> <a>invalid argument</a>. + + <li><p>Set the <code>tangentialPressure</code> property of <var>action</var> + to <var>tangentialPressure</var>. + + <li><p>Let <var>tiltX</var> be the result + of getting the property <code>tiltX</code> + from <var>action item</var>. + + <li><p>If <var>tiltX</var> is not <a>undefined</a> + and <var>tiltX</var> is not an <a>Integer</a> greater than or + equal to -90 and less than or equal to 90 return <a>error</a> with + <a>error code</a> <a>invalid argument</a>. + + <li><p>Set the <code>tiltX</code> property of <var>action</var> + to <var>tiltX</var>. + + <li><p>Let <var>tiltY</var> be the result + of getting the property <code>tiltY</code> + from <var>action item</var>. + + <li><p>If <var>tiltY</var> is not <a>undefined</a> + and <var>tiltY</var> is not an <a>Integer</a> greater than or + equal to -90 and less than or equal to 90 return <a>error</a> with + <a>error code</a> <a>invalid argument</a>. + + <li><p>Set the <code>tiltY</code> property of <var>action</var> + to <var>tiltY</var>. + + <li><p>Let <var>twist</var> be the result + of getting the property <code>twist</code> + from <var>action item</var>. + + <li><p>If <var>twist</var> is not <a>undefined</a> + and <var>twist</var> is not an <a>Integer</a> greater than or + equal to 0 and less than or equal to 359 return <a>error</a> with + <a>error code</a> <a>invalid argument</a>. + + <li><p>Set the <code>twist</code> property of <var>action</var> + to <var>twist</var>. + + <li><p>Let <var>altitudeAngle</var> be the result + of getting the property <code>altitudeAngle</code> + from <var>action item</var>. + + <li><p>If <var>altitudeAngle</var> is not <a>undefined</a> + and <var>altitudeAngle</var> is not a <a>Number</a> greater than + or equal to 0 and less than or equal to π/2 return <a>error</a> with + <a>error code</a> <a>invalid argument</a>. + + <li><p>Set the <code>altitudeAngle</code> property of <var>action</var> + to <var>altitudeAngle</var>. + + <li><p>Let <var>azimuthAngle</var> be the result + of getting the property <code>azimuthAngle</code> + from <var>action item</var>. + + <li><p>If <var>azimuthAngle</var> is not <a>undefined</a> + and <var>azimuthAngle</var> is not a <a>Number</a> greater than + or equal to 0 and less than or equal to 2π return <a>error</a> with + <a>error code</a> <a>invalid argument</a>. + + <li><p>Set the <code>azimuthAngle</code> property of <var>action</var> + to <var>azimuthAngle</var>. + </ol> + </dl> <li><p>Return success with data <a><code>null</code></a>. </ol> @@ -8555,113 +8671,240 @@ <h3>Processing actions</h3> <li><p>Set the <code>y</code> property of <var>action</var> to <var>y</var>. - <li><p>Let <var>width</var> be the result - of getting the property <code>width</code> - from <var>action item</var>. - - <li><p>If <var>width</var> is not <a>undefined</a> - and <var>width</var> is not a <a>Number</a> greater than or - equal to 0 return <a>error</a> with <a>error code</a> - <a>invalid argument</a>. - - <li><p>Set the <code>width</code> property of <var>action</var> - to <var>width</var>. - - <li><p>Let <var>height</var> be the result - of getting the property <code>height</code> - from <var>action item</var>. - - <li><p>If <var>height</var> is not <a>undefined</a> - and <var>height</var> is not a <a>Number</a> greater than or - equal to 0 return <a>error</a> with <a>error code</a> - <a>invalid argument</a>. - - <li><p>Set the <code>height</code> property of <var>action</var> - to <var>height</var>. - - <li><p>Let <var>pressure</var> be the result - of getting the property <code>pressure</code> - from <var>action item</var>. - - <li><p>If <var>pressure</var> is not <a>undefined</a> - and <var>pressure</var> is not a <a>Number</a> greater than or - equal to 0 and less than or equal to 1 return <a>error</a> with - <a>error code</a> <a>invalid argument</a>. - - <li><p>Set the <code>pressure</code> property of <var>action</var> - to <var>pressure</var>. - - <li><p>Let <var>tangentialPressure</var> be the result - of getting the property <code>tangentialPressure</code> - from <var>action item</var>. - - <li><p>If <var>tangentialPressure</var> is not <a>undefined</a> - and <var>tangentialPressure</var> is not a <a>Number</a> greater - than or equal to -1 and less than or equal to 1 return <a>error</a> - with <a>error code</a> <a>invalid argument</a>. - - <li><p>Set the <code>tangentialPressure</code> property of <var>action</var> - to <var>tangentialPressure</var>. - - <li><p>Let <var>tiltX</var> be the result - of getting the property <code>tiltX</code> - from <var>action item</var>. - - <li><p>If <var>tiltX</var> is not <a>undefined</a> - and <var>tiltX</var> is not an <a>Integer</a> greater than or - equal to -90 and less than or equal to 90 return <a>error</a> with - <a>error code</a> <a>invalid argument</a>. - - <li><p>Set the <code>tiltX</code> property of <var>action</var> - to <var>tiltX</var>. + <li><p>Let <var>pointerType</var> be equal to + <var>action</var>’s <code>pointerType</code> property. + + <li><p>Run the substeps of the first matching value of <var>pointerType</var> - <li><p>Let <var>tiltY</var> be the result - of getting the property <code>tiltY</code> - from <var>action item</var>. + <dl class=switch> + <dt>"<code>mouse</code>" + <dd> + <ol> + <li><p>Let <var>button</var> be the result + of getting the property <code>button</code> + from <var>action item</var>. + + <li><p>If <var>button</var> is not an <a>Integer</a> greater than or + equal to 0 return <a>error</a> with <a>error code</a> + <a>invalid argument</a>. + + <li><p>Set the <code>button</code> property of <var>action</var> + to <var>button</var>. - <li><p>If <var>tiltY</var> is not <a>undefined</a> - and <var>tiltY</var> is not an <a>Integer</a> greater than or - equal to -90 and less than or equal to 90 return <a>error</a> with - <a>error code</a> <a>invalid argument</a>. + <li><p>Set the <code>width</code> property of <var>action</var> + to 1. - <li><p>Set the <code>tiltY</code> property of <var>action</var> - to <var>tiltY</var>. + <li><p>Set the <code>height</code> property of <var>action</var> + to 1. + + <li><p>If <var>action</var>'s <code>subtype</code> property is + "<code>pointerDown</code>", set the <code>pressure</code> property of + <var>action</var> to 0.5. Otherwise, set the <code>pressure</code> property of + <var>action</var> to 0. - <li><p>Let <var>twist</var> be the result - of getting the property <code>twist</code> - from <var>action item</var>. + <li><p>Set the <code>tangentialPressure</code> property of <var>action</var> + to 0. - <li><p>If <var>twist</var> is not <a>undefined</a> - and <var>twist</var> is not an <a>Integer</a> greater than or - equal to 0 and less than or equal to 359 return <a>error</a> with - <a>error code</a> <a>invalid argument</a>. + <li><p>Set the <code>tiltX</code> property of <var>action</var> + to 0. - <li><p>Set the <code>twist</code> property of <var>action</var> - to <var>twist</var>. + <li><p>Set the <code>tiltY</code> property of <var>action</var> + to 0. - <li><p>Let <var>altitudeAngle</var> be the result - of getting the property <code>altitudeAngle</code> - from <var>action item</var>. + <li><p>Set the <code>twist</code> property of <var>action</var> + to 0. - <li><p>If <var>altitudeAngle</var> is not <a>undefined</a> - and <var>altitudeAngle</var> is not a <a>Number</a> greater than - or equal to 0 and less than or equal to π/2 return <a>error</a> with - <a>error code</a> <a>invalid argument</a>. + <li><p>Set the <code>altitudeAngle</code> property of <var>action</var> + to π/2. - <li><p>Set the <code>altitudeAngle</code> property of <var>action</var> - to <var>altitudeAngle</var>. - - <li><p>Let <var>azimuthAngle</var> be the result - of getting the property <code>azimuthAngle</code> - from <var>action item</var>. + <li><p>Set the <code>azimuthAngle</code> property of <var>action</var> + to 0. + </ol> - <li><p>If <var>azimuthAngle</var> is not <a>undefined</a> - and <var>azimuthAngle</var> is not a <a>Number</a> greater than - or equal to 0 and less than or equal to 2π return <a>error</a> with - <a>error code</a> <a>invalid argument</a>. + <dt>"<code>touch</code>" + <dd> + <ol> + <li><p>Set the <code>button</code> property of <var>action</var> + to 0. + + <li><p>Let <var>width</var> be the result + of getting the property <code>width</code> + from <var>action item</var>. + + <li><p>If <var>width</var> is not <a>undefined</a> + and <var>width</var> is not a <a>Number</a> greater than or + equal to 0 return <a>error</a> with <a>error code</a> + <a>invalid argument</a>. + + <li><p>Set the <code>width</code> property of <var>action</var> + to <var>width</var>. + + <li><p>Let <var>height</var> be the result + of getting the property <code>height</code> + from <var>action item</var>. + + <li><p>If <var>height</var> is not <a>undefined</a> + and <var>height</var> is not a <a>Number</a> greater than or + equal to 0 return <a>error</a> with <a>error code</a> + <a>invalid argument</a>. + + <li><p>Set the <code>height</code> property of <var>action</var> + to <var>height</var>. + + <li><p>Let <var>pressure</var> be the result + of getting the property <code>pressure</code> + from <var>action item</var>. + + <li><p>If <var>pressure</var> is not <a>undefined</a> + and <var>pressure</var> is not a <a>Number</a> greater than or + equal to 0 and less than or equal to 1 return <a>error</a> with + <a>error code</a> <a>invalid argument</a>. + + <li><p>Set the <code>pressure</code> property of <var>action</var> + to <var>pressure</var>. + + <li><p>Set the <code>tangentialPressure</code> property of <var>action</var> + to 0. + + <li><p>Set the <code>tiltX</code> property of <var>action</var> + to 90. + + <li><p>Set the <code>tiltY</code> property of <var>action</var> + to 0. + + <li><p>Set the <code>twist</code> property of <var>action</var> + to 0. + + <li><p>Set the <code>altitudeAngle</code> property of <var>action</var> + to 0. + + <li><p>Set the <code>azimuthAngle</code> property of <var>action</var> + to 0. + </ol> - <li><p>Set the <code>azimuthAngle</code> property of <var>action</var> - to <var>azimuthAngle</var>. + <dt>"<code>pen</code>" + <dd> + <ol> + <li><p>Let <var>button</var> be the result + of getting the property <code>button</code> + from <var>action item</var>. + + <li><p>If <var>button</var> is not an <a>Integer</a> greater than or + equal to 0 return <a>error</a> with <a>error code</a> + <a>invalid argument</a>. + + <li><p>Set the <code>button</code> property of <var>action</var> + to <var>button</var>. + + <li><p>Let <var>width</var> be the result + of getting the property <code>width</code> + from <var>action item</var>. + + <li><p>If <var>width</var> is not <a>undefined</a> + and <var>width</var> is not a <a>Number</a> greater than or + equal to 0 return <a>error</a> with <a>error code</a> + <a>invalid argument</a>. + + <li><p>Set the <code>width</code> property of <var>action</var> + to <var>width</var>. + + <li><p>Let <var>height</var> be the result + of getting the property <code>height</code> + from <var>action item</var>. + + <li><p>If <var>height</var> is not <a>undefined</a> + and <var>height</var> is not a <a>Number</a> greater than or + equal to 0 return <a>error</a> with <a>error code</a> + <a>invalid argument</a>. + + <li><p>Set the <code>height</code> property of <var>action</var> + to <var>height</var>. + + <li><p>Let <var>pressure</var> be the result + of getting the property <code>pressure</code> + from <var>action item</var>. + + <li><p>If <var>pressure</var> is not <a>undefined</a> + and <var>pressure</var> is not a <a>Number</a> greater than or + equal to 0 and less than or equal to 1 return <a>error</a> with + <a>error code</a> <a>invalid argument</a>. + + <li><p>Set the <code>pressure</code> property of <var>action</var> + to <var>pressure</var>. + + <li><p>Let <var>tangentialPressure</var> be the result + of getting the property <code>tangentialPressure</code> + from <var>action item</var>. + + <li><p>If <var>tangentialPressure</var> is not <a>undefined</a> + and <var>tangentialPressure</var> is not a <a>Number</a> greater + than or equal to -1 and less than or equal to 1 return <a>error</a> + with <a>error code</a> <a>invalid argument</a>. + + <li><p>Set the <code>tangentialPressure</code> property of <var>action</var> + to <var>tangentialPressure</var>. + + <li><p>Let <var>tiltX</var> be the result + of getting the property <code>tiltX</code> + from <var>action item</var>. + + <li><p>If <var>tiltX</var> is not <a>undefined</a> + and <var>tiltX</var> is not an <a>Integer</a> greater than or + equal to -90 and less than or equal to 90 return <a>error</a> with + <a>error code</a> <a>invalid argument</a>. + + <li><p>Set the <code>tiltX</code> property of <var>action</var> + to <var>tiltX</var>. + + <li><p>Let <var>tiltY</var> be the result + of getting the property <code>tiltY</code> + from <var>action item</var>. + + <li><p>If <var>tiltY</var> is not <a>undefined</a> + and <var>tiltY</var> is not an <a>Integer</a> greater than or + equal to -90 and less than or equal to 90 return <a>error</a> with + <a>error code</a> <a>invalid argument</a>. + + <li><p>Set the <code>tiltY</code> property of <var>action</var> + to <var>tiltY</var>. + + <li><p>Let <var>twist</var> be the result + of getting the property <code>twist</code> + from <var>action item</var>. + + <li><p>If <var>twist</var> is not <a>undefined</a> + and <var>twist</var> is not an <a>Integer</a> greater than or + equal to 0 and less than or equal to 359 return <a>error</a> with + <a>error code</a> <a>invalid argument</a>. + + <li><p>Set the <code>twist</code> property of <var>action</var> + to <var>twist</var>. + + <li><p>Let <var>altitudeAngle</var> be the result + of getting the property <code>altitudeAngle</code> + from <var>action item</var>. + + <li><p>If <var>altitudeAngle</var> is not <a>undefined</a> + and <var>altitudeAngle</var> is not a <a>Number</a> greater than + or equal to 0 and less than or equal to π/2 return <a>error</a> with + <a>error code</a> <a>invalid argument</a>. + + <li><p>Set the <code>altitudeAngle</code> property of <var>action</var> + to <var>altitudeAngle</var>. + + <li><p>Let <var>azimuthAngle</var> be the result + of getting the property <code>azimuthAngle</code> + from <var>action item</var>. + + <li><p>If <var>azimuthAngle</var> is not <a>undefined</a> + and <var>azimuthAngle</var> is not a <a>Number</a> greater than + or equal to 0 and less than or equal to 2π return <a>error</a> with + <a>error code</a> <a>invalid argument</a>. + + <li><p>Set the <code>azimuthAngle</code> property of <var>action</var> + to <var>azimuthAngle</var>. + </ol> + </dl> <li><p>Return success with data <a><code>null</code></a>. </ol>