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-rw-r--r--catalog-ui/app/scripts/utils/file-utils.ts73
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diff --git a/catalog-ui/app/scripts/utils/file-utils.ts b/catalog-ui/app/scripts/utils/file-utils.ts
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+/*-
+ * ============LICENSE_START=======================================================
+ * SDC
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+/// <reference path="../references"/>
+module Sdc.Utils {
+ export class FileUtils {
+
+ static '$inject' = [
+ '$window'
+ ];
+
+ constructor(private $window: any) {
+ }
+
+ public byteCharactersToBlob = (byteCharacters, contentType): any => {
+ contentType = contentType || '';
+ let sliceSize = 1024;
+ let bytesLength = byteCharacters.length;
+ let slicesCount = Math.ceil(bytesLength / sliceSize);
+ let byteArrays = new Array(slicesCount);
+
+ for (let sliceIndex = 0; sliceIndex < slicesCount; ++sliceIndex) {
+ let begin = sliceIndex * sliceSize;
+ let end = Math.min(begin + sliceSize, bytesLength);
+
+ let bytes = new Array(end - begin);
+ for (let offset = begin, i = 0; offset < end; ++i, ++offset) {
+ bytes[i] = byteCharacters[offset].charCodeAt(0);
+ }
+ byteArrays[sliceIndex] = new Uint8Array(bytes);
+ }
+ return new Blob(byteArrays, {type: contentType});
+ };
+
+ public base64toBlob = (base64Data, contentType): any => {
+ let byteCharacters = atob(base64Data);
+ return this.byteCharactersToBlob(byteCharacters, contentType);
+ };
+
+ public downloadFile = (blob, fileName): void=> {
+ let url = this.$window.URL.createObjectURL(blob);
+ let downloadLink = document.createElement("a");
+
+ downloadLink.setAttribute('href', url);
+ downloadLink.setAttribute('download', fileName);
+ document.body.appendChild(downloadLink);
+ downloadLink.click();
+
+ //time out for firefox
+ setTimeout(()=> {
+ document.body.removeChild(downloadLink);
+ this.$window.URL.revokeObjectURL(url);
+ }, 100);
+ }
+
+ }
+}