diff --git a/src/directives/mobilegeolocation.js b/src/directives/mobilegeolocation.js index 5da269307758..6b987e39ed90 100644 --- a/src/directives/mobilegeolocation.js +++ b/src/directives/mobilegeolocation.js @@ -9,7 +9,6 @@ goog.require('ol.Feature'); goog.require('ol.Geolocation'); goog.require('ol.Map'); goog.require('ol.geom.Point'); -goog.require('ol.DeviceOrientation'); /** @@ -116,12 +115,6 @@ ngeo.MobileGeolocationController = function($scope, $element, }) }); - /** - * @private - * @type {ol.DeviceOrientation} - */ - this.deviceOrientation; - if (options.autorotate) { this.autorotateListener(); } @@ -129,9 +122,6 @@ ngeo.MobileGeolocationController = function($scope, $element, // handle geolocation error. this.geolocation_.on('error', function(error) { this.untrack_(); - if (this.deviceOrientation) { - this.deviceOrientation.setTracking(false); - } let msg; switch (error.code) { case 1: @@ -296,118 +286,43 @@ ngeo.MobileGeolocationController.prototype.handleViewChange_ = function(event) { } }; -function isIOS() { - return /iPad|iPhone|iPod/.test(navigator.userAgent) && - !window['MSStream']; -} - -// Get heading depending on devices -function headingFromDevices(deviceOrientation) { - let hdg = deviceOrientation.getHeading(); - let orientation = window.orientation; - if (hdg === undefined) { - return undefined; - } - if (!isIOS()) { - hdg = -hdg; - if (window.screen.orientation.angle) { - orientation = window.screen.orientation.angle; - } + +// Orientation control events +ngeo.MobileGeolocationController.prototype.autorotateListener = function() { + let currentAlpha = 0; + if (window.hasOwnProperty('ondeviceorientationabsolute')) { + window.addEventListener('deviceorientationabsolute', (evt) => { + currentAlpha = this.handleRotate_(evt.alpha, currentAlpha); + }, true); + } else if (window.hasOwnProperty('ondeviceorientation')) { + window.addEventListener('deviceorientation', (evt) => { + if (evt.webkitCompassHeading) { // check for iOS property + currentAlpha = this.handleRotate_(-evt.webkitCompassHeading, currentAlpha); + } else { // non iOS + currentAlpha = this.handleRotate_(evt.alpha - 270, currentAlpha); + } + }, true); + } else { + console.error('Orientation is not supported on this device'); } - // Normalize to be between -90 and 180 - orientation = ((orientation + 179) % 360 - 179); - // Add to hdg in radian - hdg += orientation * Math.PI / 180; - return hdg; -} - -// Update heading -ngeo.MobileGeolocationController.prototype.headingUpdate = function() { - let heading = headingFromDevices(this.deviceOrientation); - if (heading !== undefined) { - heading = -heading; - const currRotation = this.map_.getView().getRotation(); - const diff = heading - currRotation; - - if (diff > Math.PI) { - heading -= 2 * Math.PI; - } +}; + +/** + * Handle rotation. + * @param {number} eventAlpha . + * @param {number} currentAlpha . + * @return {number} . + * @private + */ +ngeo.MobileGeolocationController.prototype.handleRotate_ = function(eventAlpha, currentAlpha) { + if (Math.abs(eventAlpha - currentAlpha) > 0.2) { + currentAlpha = eventAlpha; + const radAlpha = currentAlpha * Math.PI / 180; this.map_.getView().animate({ - rotation: heading, + rotation: radAlpha, duration: 350, easing: ol.easing.linear }); } + return currentAlpha; }; - -/** - * Orientation control events - * @suppress {deprecated} - */ -ngeo.MobileGeolocationController.prototype.autorotateListener = function() { - this.deviceOrientation = new ol.DeviceOrientation(); - - let currHeading = 0; - const headngUpdateWhenMapRotate = throttle(this.headingUpdate, 300, this); - - this.deviceOrientation.on(['change'], (event) => { - const heading = headingFromDevices(this.deviceOrientation); - if (heading === undefined) { - console.error('Heading is undefined'); - return; - } - - if (Math.abs(heading - currHeading) > 0.05) { - currHeading = heading; - headngUpdateWhenMapRotate(); - } - }); - - this.deviceOrientation.setTracking(true); -}; - -function throttle(fn, time, context) { - let lock, args, asyncKey, destroyed; - - function later() { - // reset lock and call if queued - lock = false; - if (args) { - throttled.call(context, args); - args = false; - } - } - - const checkDestroyed = function() { - if (destroyed) { - throw new Error('Method was already destroyed'); - } - }; - - function throttled(...argumentList) { - checkDestroyed(); - - if (lock) { - // called too soon, queue to call later - args = argumentList; - return; - } - - // call and lock until later - fn.apply(context, argumentList); - asyncKey = setTimeout(later, time); - lock = true; - } - - throttled.destroy = function() { - checkDestroyed(); - - if (asyncKey) { - clearTimeout(asyncKey); - } - - destroyed = true; - }; - - return throttled; -}