Merge afb-client

[src/app-framework-demo.git] / afb-client / bower_components / jszip / lib / uint8ArrayReader.js

diff --git a/afb-client/bower_components/jszip/lib/uint8ArrayReader.js b/afb-client/bower_components/jszip/lib/uint8ArrayReader.js
new file mode 100644 (file)
index 0000000..ce8d1a8
--- /dev/null
+++ b/afb-client/bower_components/jszip/lib/uint8ArrayReader.js
@@ -0,0 +1,47 @@
+'use strict';
+var DataReader = require('./dataReader');
+
+function Uint8ArrayReader(data) {
+    if (data) {
+        this.data = data;
+        this.length = this.data.length;
+        this.index = 0;
+    }
+}
+Uint8ArrayReader.prototype = new DataReader();
+/**
+ * @see DataReader.byteAt
+ */
+Uint8ArrayReader.prototype.byteAt = function(i) {
+    return this.data[i];
+};
+/**
+ * @see DataReader.lastIndexOfSignature
+ */
+Uint8ArrayReader.prototype.lastIndexOfSignature = function(sig) {
+    var sig0 = sig.charCodeAt(0),
+        sig1 = sig.charCodeAt(1),
+        sig2 = sig.charCodeAt(2),
+        sig3 = sig.charCodeAt(3);
+    for (var i = this.length - 4; i >= 0; --i) {
+        if (this.data[i] === sig0 && this.data[i + 1] === sig1 && this.data[i + 2] === sig2 && this.data[i + 3] === sig3) {
+            return i;
+        }
+    }
+
+    return -1;
+};
+/**
+ * @see DataReader.readData
+ */
+Uint8ArrayReader.prototype.readData = function(size) {
+    this.checkOffset(size);
+    if(size === 0) {
+        // in IE10, when using subarray(idx, idx), we get the array [0x00] instead of [].
+        return new Uint8Array(0);
+    }
+    var result = this.data.subarray(this.index, this.index + size);
+    this.index += size;
+    return result;
+};
+module.exports = Uint8ArrayReader;