fix orientation of iphone jpegs

1 files changed, 73 insertions, 2 deletions

diff --git a/public/assets/js/vendor/renderToCanvas.js b/public/assets/js/vendor/renderToCanvas.js
index 376e61a..f223b02 100644
--- a/public/assets/js/vendor/renderToCanvas.js
+++ b/public/assets/js/vendor/renderToCanvas.js
@@ -8,8 +8,9 @@ function renderToCanvas(img, options) {
   var ctx = canvas.getContext('2d')
   var initialScale = options.scale || 1
   // Scale to needed to constrain canvas to max size
-  var scale = getScale(img.width * initialScale,
-      img.height * initialScale, maxSize, maxSize)
+  // var scale = getScale(img.width * initialScale,
+  //     img.height * initialScale, maxSize, maxSize)
+  var scale = 1
   // Still need to apply the user defined scale
   scale *= initialScale
   var width = canvas.width = Math.round(img.width * scale)
@@ -104,6 +105,17 @@ function renderToCanvas(img, options) {
   }
 }
 
+var orientationToTransform = {
+  1: { rotation: 0, mirror: false },
+  2: { rotation: 0, mirror: true },
+  3: { rotation: 180, mirror: false },
+  4: { rotation: 180, mirror: true },
+  5: { rotation: 90, mirror: true },
+  6: { rotation: 90, mirror: false },
+  7: { rotation: 270, mirror: true },
+  8: { rotation: 270, mirror: false }
+}
+
 function base64ToUint8Array(string, start, finish) {
   var start = start || 0
   var finish = finish || string.length
@@ -115,3 +127,62 @@ function base64ToUint8Array(string, start, finish) {
   }
   return buffer
 }
+
+var dataUriToUint8Array = function(uri){
+  var data = uri.split(',')[1];
+  var bytes = atob(data);
+  var buf = new ArrayBuffer(bytes.length);
+  var u8 = new Uint8Array(buf);
+  for (var i = 0; i < bytes.length; i++) {
+    u8[i] = bytes.charCodeAt(i);
+  }
+  return u8 
+}
+
+window.dataUriToBlob = (function(){
+  /**
+   * Blob constructor.
+   */
+
+  var Blob = window.Blob;
+
+  /**
+   * ArrayBufferView support.
+   */
+
+  var hasArrayBufferView = new Blob([new Uint8Array(100)]).size == 100;
+
+  /**
+   * Return a `Blob` for the given data `uri`.
+   *
+   * @param {String} uri
+   * @return {Blob}
+   * @api public
+   */
+
+  var dataUriToBlob = function(uri){
+    var data = uri.split(',')[1];
+    var bytes = atob(data);
+    var buf = new ArrayBuffer(bytes.length);
+    var arr = new Uint8Array(buf);
+    for (var i = 0; i < bytes.length; i++) {
+      arr[i] = bytes.charCodeAt(i);
+    }
+
+    if (!hasArrayBufferView) arr = buf;
+    var blob = new Blob([arr], { type: mime(uri) });
+    blob.slice = blob.slice || blob.webkitSlice;
+    return blob;
+  };
+
+  /**
+   * Return data uri mime type.
+   */
+
+  function mime(uri) {
+    return uri.split(';')[0].slice(5);
+  }
+
+  return dataUriToBlob;
+
+})()