only apply user height if there is no positional tracking (fixes #1856)

Author: ngokevin

docs/core/utils.md

@@ -132,3 +132,21 @@ diff({a: 1, b: 2, c: 3}, {b: 2, c: 4})
 ### `AFRAME.utils.extendDeep(target, source, [source, ...])`
 
 [Deep Assign](https://www.npmjs.com/package/deep-assign)
+
+## `AFRAME.utils.device`
+
+### `AFRAME.utils.device.checkHasPositionalTracking()`
+
+Checks if there is positional tracking available. Returns a `boolean`.
+
+### `AFRAME.utils.device.checkHeadsetConnected()`
+
+Checks if a VR headset is connected by looking for orientation data. Returns a `boolean`.
+
+### `AFRAME.utils.device.isGearVR()`
+
+Checks if device is Gear VR. Returns a `boolean`.
+
+### `AFRAME.utils.device.isMobile()`
+
+Checks if device is a smartphone. Returns a `boolean`.

src/components/camera.js

@@ -3,7 +3,7 @@ var THREE = require('../lib/three');
 var utils = require('../utils/');
 var bind = utils.bind;
 
-var checkHeadsetConnected = utils.checkHeadsetConnected;
+var checkHasPositionalTracking = utils.device.checkHasPositionalTracking;
 
 /**
  * Camera component.
@@ -121,20 +121,18 @@ module.exports.Component = registerComponent('camera', {
   /**
    * Remove the height offset (called when entering VR) since WebVR API gives absolute
    * position.
-   * Does not apply for mobile.
    */
   removeHeightOffset: function () {
     var currentPosition;
     var el = this.el;
-    var headsetConnected;
-    var sceneEl = el.sceneEl;
+    var hasPositionalTracking;
     var userHeightOffset = this.data.userHeight;
 
-    // If there's not a headset connected we keep the offset.
+    // Remove the offset if there is positional tracking when entering VR.
     // Necessary for fullscreen mode with no headset.
-    // Checking this.headsetConnected to make the value injectable for unit tests.
-    headsetConnected = this.headsetConnected || checkHeadsetConnected();
-    if (sceneEl.isMobile || !userHeightOffset || !headsetConnected) { return; }
+    // Checking this.hasPositionalTracking to make the value injectable for unit tests.
+    hasPositionalTracking = this.hasPositionalTracking || checkHasPositionalTracking();
+    if (!userHeightOffset || !hasPositionalTracking) { return; }
 
     currentPosition = el.getAttribute('position') || {x: 0, y: 0, z: 0};
     el.setAttribute('position', {
@@ -149,9 +147,9 @@ module.exports.Component = registerComponent('camera', {
    */
   saveCameraPose: function () {
     var el = this.el;
-    var headsetConnected = this.headsetConnected || checkHeadsetConnected();
+    var hasPositionalTracking = this.hasPositionalTracking || checkHasPositionalTracking();
 
-    if (this.savedPose || !headsetConnected) { return; }
+    if (this.savedPose || !hasPositionalTracking) { return; }
 
     this.savedPose = {
       position: el.getAttribute('position'),
@@ -165,9 +163,9 @@ module.exports.Component = registerComponent('camera', {
   restoreCameraPose: function () {
     var el = this.el;
     var savedPose = this.savedPose;
-    var headsetConnected = this.headsetConnected || checkHeadsetConnected();
+    var hasPositionalTracking = this.hasPositionalTracking || checkHasPositionalTracking();
 
-    if (!savedPose || !headsetConnected) { return; }
+    if (!savedPose || !hasPositionalTracking) { return; }
 
     // Reset camera orientation.
     el.setAttribute('position', savedPose.position);

src/components/cursor.js

@@ -32,7 +32,7 @@ module.exports.Component = registerComponent('cursor', {
   dependencies: ['raycaster'],
 
   schema: {
-    fuse: {default: utils.isMobile()},
+    fuse: {default: utils.device.isMobile()},
     fuseTimeout: {default: 1500, min: 0}
   },
 

src/components/look-controls.js

@@ -1,6 +1,6 @@
 var registerComponent = require('../core/component').registerComponent;
 var THREE = require('../lib/three');
-var isMobile = require('../utils/').isMobile();
+var isMobile = require('../utils/').device.isMobile();
 var bind = require('../utils/bind');
 
 // To avoid recalculation at every mouse movement tick

src/components/scene/vr-mode-ui.js

@@ -90,7 +90,7 @@ module.exports.Component = registerComponent('vr-mode-ui', {
     var sceneEl = this.el;
     var orientationModalEl = this.orientationModalEl;
     if (!orientationModalEl || !sceneEl.isMobile) { return; }
-    if (!utils.isLandscape() && sceneEl.is('vr-mode')) {
+    if (!utils.device.isLandscape() && sceneEl.is('vr-mode')) {
       // Show if in VR mode on portrait.
       orientationModalEl.classList.remove(HIDDEN_CLASS);
     } else {

src/core/scene/a-scene.js

@@ -12,10 +12,10 @@ var ANode = require('../a-node');
 var initPostMessageAPI = require('./postMessage');
 
 var bind = utils.bind;
-var checkHeadsetConnected = utils.checkHeadsetConnected;
+var checkHeadsetConnected = utils.device.checkHeadsetConnected;
+var isIOS = utils.device.isIOS();
+var isMobile = utils.device.isMobile();
 var registerElement = re.registerElement;
-var isIOS = utils.isIOS();
-var isMobile = utils.isMobile();
 var warn = utils.debug('core:a-scene:warn');
 
 /**

src/utils/checkHeadsetConnected.js

@@ -0,0 +1,76 @@
+var THREE = require('../lib/three');
+var dolly = new THREE.Object3D();
+var controls = new THREE.VRControls(dolly);
+
+/**
+ * Determine if a headset is connected by checking if the
+ * orientation is available
+ */
+function checkHeadsetConnected () {
+  var orientation;
+  controls.update();
+  orientation = dolly.quaternion;
+  if (orientation._x !== 0 || orientation._y !== 0 || orientation._z !== 0) {
+    return true;
+  }
+  return false;
+}
+module.exports.checkHeadsetConnected = checkHeadsetConnected;
+
+/**
+ * Check for positional tracking.
+ */
+function checkHasPositionalTracking () {
+  var position = new THREE.Vector3();
+  return (function () {
+    if (isMobile() || isGearVR()) { return false; }
+    controls.update();
+    dolly.updateMatrix();
+    position.setFromMatrixPosition(dolly.matrix);
+    if (position.x !== 0 || position.y !== 0 || position.z !== 0) {
+      return true;
+    }
+    return false;
+  })();
+}
+module.exports.checkHasPositionalTracking = checkHasPositionalTracking;
+
+/**
+ * Checks if browser is mobile.
+ * @return {Boolean} True if mobile browser detected.
+ */
+var isMobile = (function () {
+  var _isMobile = false;
+  (function (a) {
+    if (/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino/i.test(a) || /1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(a.substr(0, 4))) {
+      _isMobile = true;
+    }
+    if (isIOS()) {
+      _isMobile = true;
+    }
+    if (isGearVR()) {
+      _isMobile = false;
+    }
+  })(navigator.userAgent || navigator.vendor || window.opera);
+
+  return function () { return _isMobile; };
+})();
+module.exports.isMobile = isMobile;
+
+function isIOS () {
+  return /iPad|iPhone|iPod/.test(navigator.platform);
+}
+module.exports.isIOS = isIOS;
+
+function isGearVR () {
+  return /SamsungBrowser.+Mobile VR/i.test(navigator.userAgent);
+}
+module.exports.isGearVR = isGearVR;
+
+/**
+ * Checks mobile device orientation.
+ * @return {Boolean} True if landscape orientation.
+ */
+module.exports.isLandscape = function () {
+  return window.orientation === 90 || window.orientation === -90;
+};

src/utils/device.js

@@ -6,8 +6,8 @@ var objectAssign = require('object-assign');
 
 module.exports.bind = require('./bind');
 module.exports.coordinates = require('./coordinates');
-module.exports.checkHeadsetConnected = require('./checkHeadsetConnected');
 module.exports.debug = require('./debug');
+module.exports.device = require('./device');
 module.exports.entity = require('./entity');
 module.exports.forceCanvasResizeSafariMobile = require('./forceCanvasResizeSafariMobile');
 module.exports.material = require('./material');
@@ -89,42 +89,6 @@ module.exports.diff = function (a, b) {
   return diff;
 };
 
-/**
- * Checks if browser is mobile.
- * @return {Boolean} True if mobile browser detected.
- */
-module.exports.isMobile = function () {
-  var check = false;
-  (function (a) {
-    if (/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino/i.test(a) || /1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(a.substr(0, 4))) {
-      check = true;
-    }
-    if (isIOS()) {
-      check = true;
-    }
-    if (isGearVR()) {
-      check = false;
-    }
-  })(navigator.userAgent || navigator.vendor || window.opera);
-  return check;
-};
-
-var isIOS = module.exports.isIOS = function () {
-  return /iPad|iPhone|iPod/.test(navigator.platform);
-};
-
-var isGearVR = module.exports.isGearVR = function () {
-  return /SamsungBrowser.+Mobile VR/i.test(navigator.userAgent);
-};
-
-/**
- * Checks mobile device orientation.
- * @return {Boolean} True if landscape orientation.
- */
-module.exports.isLandscape = function () {
-  return window.orientation === 90 || window.orientation === -90;
-};
-
 /**
  * Returns whether we should capture this keyboard event for keyboard shortcuts.
  * @param {Event} event Event object.