wip #5221 @0.75

diff --git a/js/libs/fluidbook/fluidbook.parallax.js b/js/libs/fluidbook/fluidbook.parallax.js
index 0e95dc74de21029a23952b25d47b62ae1da00ee8..e1a223c6707469d0f189a6ecde2d0bb06a12ac8a 100644 (file)
--- a/js/libs/fluidbook/fluidbook.parallax.js
+++ b/js/libs/fluidbook/fluidbook.parallax.js
@@ -1,5 +1,8 @@
 function FluidbookParallax(fluidbook) {
     this.fluidbook = fluidbook;
+    this.calibrateBeta = null;
+    this.calibrateGamma = null;
+    this.orientationStatus = 0;
     this.init();
 }
 
@@ -37,8 +40,20 @@ FluidbookParallax.prototype = {
         this.y = 0;
         this.update();
 
-        if (Modernizr.hasEvent('deviceOrientation')) {
-
+        if (Modernizr.deviceorientation && !this.fluidbook.input.hasMouse) {
+            window.addEventListener("deviceorientation", function (e) {
+                let beta = e.beta
+                let gamma = e.gamma
+                if (beta !== null && gamma !== null) {
+                    if ($this.calibrateBeta === null) {
+                        $this.calibrateBeta = beta;
+                    }
+                    if ($this.calibrateGamma === null) {
+                        $this.calibrateGamma = null;
+                    }
+                    $this.rotate(beta - $this.calibrateBeta, gamma - $this.calibrateGamma)
+                }
+            }, true);
         } else {
             $(window).on('pointermove', function (e) {
                 $this.x = -1 * $this.normalize((e.clientX - $this.fluidbook.resize.ww / 2) / $this.fluidbook.resize.ww);
@@ -48,6 +63,30 @@ FluidbookParallax.prototype = {
         }
     },
 
+    rotate: function (beta, gamma) {
+        const MAGIC_NUMBER = 90;
+        // Extract Rotation
+        let x = (gamma || 0) / MAGIC_NUMBER, //  -90 :: 90
+            y = (beta || 0) / MAGIC_NUMBER // -180 :: 180
+
+        // Detect Orientation Change
+        let portrait = this.windowHeight > this.windowWidth
+        if (this.portrait !== portrait) {
+            this.portrait = portrait;
+            this.calibrationFlag = true;
+        }
+
+        if (this.calibrationFlag) {
+            this.calibrationFlag = false;
+            this.calibrationX = x;
+            this.calibrationY = y;
+        }
+
+        this.x = -1 * x;
+        this.y = -1 * y;
+        this.update();
+    },
+
     update: function () {
         var $this = this;
         $("[data-parallax]").each(function () {

diff --git a/js/libs/modernizr/modernizr.min.js b/js/libs/modernizr/modernizr.min.js
index 5b8dd75bd1a83915fb8ced98465a176dbdb72ba1..19eacd2edbc9819dda767e974eec2acb5df93016 100644 (file)
--- a/js/libs/modernizr/modernizr.min.js
+++ b/js/libs/modernizr/modernizr.min.js
@@ -1,3 +1,3 @@
 /*! modernizr 3.6.0 (Custom Build) | MIT *
- * https://modernizr.com/download/?-applicationcache-audio-csstransforms-csstransforms3d-csstransitions-fullscreen-localstorage-passiveeventlisteners-preserve3d-sessionstorage-svg-touchevents-video-webgl-addtest-atrule-domprefixes-hasevent-mq-prefixed-prefixedcss-prefixedcssvalue-prefixes-setclasses-testallprops-testprop-teststyles !*/
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\ No newline at end of file
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