Add blob option

misteroneill · Feb 15, 2018 · 22ac214 · 22ac214
1 parent c7c9ccd
commit 22ac214
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Showing 5 changed files with 184 additions and 126 deletions.
diff --git a/build/can-autoplay.cjs.js b/build/can-autoplay.cjs.js
@@ -20,17 +20,38 @@ var AUDIO = 'data:audio/mpeg;base64,/+MYxAAAAANIAUAAAASEEB/jwOFM/0MM/90b/+RhST//
  */
 var VIDEO = 'data:video/mp4;base64,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';
 
-function audio(options) {
-  return startPlayback(setupDefaultValues(options), function () {
-    return {
-      element: document.createElement('audio'),
-      source: URL.createObjectURL(base64toBlob(AUDIO))
-    };
-  });
+function base64toBlob(base64) {
+  var base64Regex = /^data:([^;]+);base64,(.+)$/i;
+  var matches = base64.match(base64Regex);
+  var contentType = matches[1];
+  var base64Data = matches[2];
+
+  var sliceSize = 1024;
+  var byteCharacters = atob(base64Data);
+  var bytesLength = byteCharacters.length;
+  var slicesCount = Math.ceil(bytesLength / sliceSize);
+  var byteArrays = new Array(slicesCount);
+
+  for (var sliceIndex = 0; sliceIndex < slicesCount; ++sliceIndex) {
+    var begin = sliceIndex * sliceSize;
+    var end = Math.min(begin + sliceSize, bytesLength);
+
+    var bytes = new Array(end - begin);
+    for (var offset = begin, i = 0; offset < end; ++i, ++offset) {
+      bytes[i] = byteCharacters[offset].charCodeAt(0);
+    }
+    byteArrays[sliceIndex] = new Uint8Array(bytes);
+  }
+  return new Blob(byteArrays, { type: contentType });
 }
 
 function setupDefaultValues(options) {
-  return Object.assign({ muted: false, timeout: 250, inline: false }, options);
+  return Object.assign({
+    muted: false,
+    timeout: 250,
+    inline: false,
+    blob: false
+  }, options);
 }
 
 function startPlayback(_ref, elementCallback) {
@@ -82,38 +103,30 @@ function startPlayback(_ref, elementCallback) {
   });
 }
 
+//
+// API
+//
+
 function video(options) {
   return startPlayback(setupDefaultValues(options), function () {
+    var source = options.blob ? URL.createObjectURL(base64toBlob(VIDEO)) : VIDEO;
+
     return {
       element: document.createElement('video'),
-      source: URL.createObjectURL(base64toBlob(VIDEO))
+      source: source
     };
   });
 }
 
-function base64toBlob(base64) {
-  var base64Regex = /^data:([^;]+);base64,(.+)$/i;
-  var matches = base64.match(base64Regex);
-  var contentType = matches[1];
-  var base64Data = matches[2];
-
-  var sliceSize = 1024;
-  var byteCharacters = atob(base64Data);
-  var bytesLength = byteCharacters.length;
-  var slicesCount = Math.ceil(bytesLength / sliceSize);
-  var byteArrays = new Array(slicesCount);
-
-  for (var sliceIndex = 0; sliceIndex < slicesCount; ++sliceIndex) {
-    var begin = sliceIndex * sliceSize;
-    var end = Math.min(begin + sliceSize, bytesLength);
+function audio(options) {
+  return startPlayback(setupDefaultValues(options), function () {
+    var source = options.blob ? URL.createObjectURL(base64toBlob(VIDEO)) : AUDIO;
 
-    var bytes = new Array(end - begin);
-    for (var offset = begin, i = 0; offset < end; ++i, ++offset) {
-      bytes[i] = byteCharacters[offset].charCodeAt(0);
-    }
-    byteArrays[sliceIndex] = new Uint8Array(bytes);
-  }
-  return new Blob(byteArrays, { type: contentType });
+    return {
+      element: document.createElement('audio'),
+      source: source
+    };
+  });
 }
 
 var index = { audio: audio, video: video };

diff --git a/build/can-autoplay.es.js b/build/can-autoplay.es.js
@@ -18,17 +18,38 @@ var AUDIO = 'data:audio/mpeg;base64,/+MYxAAAAANIAUAAAASEEB/jwOFM/0MM/90b/+RhST//
  */
 var VIDEO = 'data:video/mp4;base64,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';
 
-function audio(options) {
-  return startPlayback(setupDefaultValues(options), function () {
-    return {
-      element: document.createElement('audio'),
-      source: URL.createObjectURL(base64toBlob(AUDIO))
-    };
-  });
+function base64toBlob(base64) {
+  var base64Regex = /^data:([^;]+);base64,(.+)$/i;
+  var matches = base64.match(base64Regex);
+  var contentType = matches[1];
+  var base64Data = matches[2];
+
+  var sliceSize = 1024;
+  var byteCharacters = atob(base64Data);
+  var bytesLength = byteCharacters.length;
+  var slicesCount = Math.ceil(bytesLength / sliceSize);
+  var byteArrays = new Array(slicesCount);
+
+  for (var sliceIndex = 0; sliceIndex < slicesCount; ++sliceIndex) {
+    var begin = sliceIndex * sliceSize;
+    var end = Math.min(begin + sliceSize, bytesLength);
+
+    var bytes = new Array(end - begin);
+    for (var offset = begin, i = 0; offset < end; ++i, ++offset) {
+      bytes[i] = byteCharacters[offset].charCodeAt(0);
+    }
+    byteArrays[sliceIndex] = new Uint8Array(bytes);
+  }
+  return new Blob(byteArrays, { type: contentType });
 }
 
 function setupDefaultValues(options) {
-  return Object.assign({ muted: false, timeout: 250, inline: false }, options);
+  return Object.assign({
+    muted: false,
+    timeout: 250,
+    inline: false,
+    blob: false
+  }, options);
 }
 
 function startPlayback(_ref, elementCallback) {
@@ -80,38 +101,30 @@ function startPlayback(_ref, elementCallback) {
   });
 }
 
+//
+// API
+//
+
 function video(options) {
   return startPlayback(setupDefaultValues(options), function () {
+    var source = options.blob ? URL.createObjectURL(base64toBlob(VIDEO)) : VIDEO;
+
     return {
       element: document.createElement('video'),
-      source: URL.createObjectURL(base64toBlob(VIDEO))
+      source: source
     };
   });
 }
 
-function base64toBlob(base64) {
-  var base64Regex = /^data:([^;]+);base64,(.+)$/i;
-  var matches = base64.match(base64Regex);
-  var contentType = matches[1];
-  var base64Data = matches[2];
-
-  var sliceSize = 1024;
-  var byteCharacters = atob(base64Data);
-  var bytesLength = byteCharacters.length;
-  var slicesCount = Math.ceil(bytesLength / sliceSize);
-  var byteArrays = new Array(slicesCount);
-
-  for (var sliceIndex = 0; sliceIndex < slicesCount; ++sliceIndex) {
-    var begin = sliceIndex * sliceSize;
-    var end = Math.min(begin + sliceSize, bytesLength);
+function audio(options) {
+  return startPlayback(setupDefaultValues(options), function () {
+    var source = options.blob ? URL.createObjectURL(base64toBlob(VIDEO)) : AUDIO;
 
-    var bytes = new Array(end - begin);
-    for (var offset = begin, i = 0; offset < end; ++i, ++offset) {
-      bytes[i] = byteCharacters[offset].charCodeAt(0);
-    }
-    byteArrays[sliceIndex] = new Uint8Array(bytes);
-  }
-  return new Blob(byteArrays, { type: contentType });
+    return {
+      element: document.createElement('audio'),
+      source: source
+    };
+  });
 }
 
 var index = { audio: audio, video: video };

diff --git a/build/can-autoplay.js b/build/can-autoplay.js
@@ -24,17 +24,38 @@ var AUDIO = 'data:audio/mpeg;base64,/+MYxAAAAANIAUAAAASEEB/jwOFM/0MM/90b/+RhST//
  */
 var VIDEO = 'data:video/mp4;base64,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';
 
-function audio(options) {
-  return startPlayback(setupDefaultValues(options), function () {
-    return {
-      element: document.createElement('audio'),
-      source: URL.createObjectURL(base64toBlob(AUDIO))
-    };
-  });
+function base64toBlob(base64) {
+  var base64Regex = /^data:([^;]+);base64,(.+)$/i;
+  var matches = base64.match(base64Regex);
+  var contentType = matches[1];
+  var base64Data = matches[2];
+
+  var sliceSize = 1024;
+  var byteCharacters = atob(base64Data);
+  var bytesLength = byteCharacters.length;
+  var slicesCount = Math.ceil(bytesLength / sliceSize);
+  var byteArrays = new Array(slicesCount);
+
+  for (var sliceIndex = 0; sliceIndex < slicesCount; ++sliceIndex) {
+    var begin = sliceIndex * sliceSize;
+    var end = Math.min(begin + sliceSize, bytesLength);
+
+    var bytes = new Array(end - begin);
+    for (var offset = begin, i = 0; offset < end; ++i, ++offset) {
+      bytes[i] = byteCharacters[offset].charCodeAt(0);
+    }
+    byteArrays[sliceIndex] = new Uint8Array(bytes);
+  }
+  return new Blob(byteArrays, { type: contentType });
 }
 
 function setupDefaultValues(options) {
-  return Object.assign({ muted: false, timeout: 250, inline: false }, options);
+  return Object.assign({
+    muted: false,
+    timeout: 250,
+    inline: false,
+    blob: false
+  }, options);
 }
 
 function startPlayback(_ref, elementCallback) {
@@ -86,38 +107,30 @@ function startPlayback(_ref, elementCallback) {
   });
 }
 
+//
+// API
+//
+
 function video(options) {
   return startPlayback(setupDefaultValues(options), function () {
+    var source = options.blob ? URL.createObjectURL(base64toBlob(VIDEO)) : VIDEO;
+
     return {
       element: document.createElement('video'),
-      source: URL.createObjectURL(base64toBlob(VIDEO))
+      source: source
     };
   });
 }
 
-function base64toBlob(base64) {
-  var base64Regex = /^data:([^;]+);base64,(.+)$/i;
-  var matches = base64.match(base64Regex);
-  var contentType = matches[1];
-  var base64Data = matches[2];
-
-  var sliceSize = 1024;
-  var byteCharacters = atob(base64Data);
-  var bytesLength = byteCharacters.length;
-  var slicesCount = Math.ceil(bytesLength / sliceSize);
-  var byteArrays = new Array(slicesCount);
-
-  for (var sliceIndex = 0; sliceIndex < slicesCount; ++sliceIndex) {
-    var begin = sliceIndex * sliceSize;
-    var end = Math.min(begin + sliceSize, bytesLength);
+function audio(options) {
+  return startPlayback(setupDefaultValues(options), function () {
+    var source = options.blob ? URL.createObjectURL(base64toBlob(VIDEO)) : AUDIO;
 
-    var bytes = new Array(end - begin);
-    for (var offset = begin, i = 0; offset < end; ++i, ++offset) {
-      bytes[i] = byteCharacters[offset].charCodeAt(0);
-    }
-    byteArrays[sliceIndex] = new Uint8Array(bytes);
-  }
-  return new Blob(byteArrays, { type: contentType });
+    return {
+      element: document.createElement('audio'),
+      source: source
+    };
+  });
 }
 
 var index = { audio: audio, video: video };

diff --git a/lib/base64-to-blob.js b/lib/base64-to-blob.js
@@ -0,0 +1,26 @@
+function base64toBlob (base64) {
+  const base64Regex = /^data:([^;]+);base64,(.+)$/i
+  const matches = base64.match(base64Regex)
+  const contentType = matches[1];
+  const base64Data = matches[2];
+
+  const sliceSize = 1024
+  const byteCharacters = atob(base64Data)
+  const bytesLength = byteCharacters.length
+  const slicesCount = Math.ceil(bytesLength / sliceSize)
+  const byteArrays = new Array(slicesCount)
+
+  for (let sliceIndex = 0; sliceIndex < slicesCount; ++sliceIndex) {
+    const begin = sliceIndex * sliceSize
+    const end = Math.min(begin + sliceSize, bytesLength)
+
+    const bytes = new Array(end - begin)
+    for (let offset = begin, i = 0; offset < end; ++i, ++offset) {
+      bytes[i] = byteCharacters[offset].charCodeAt(0)
+    }
+    byteArrays[sliceIndex] = new Uint8Array(bytes)
+  }
+  return new Blob(byteArrays, { type: contentType })
+}
+
+export default base64toBlob