New packages org (#2639)

New packages org

lib/core/viewer/components/txtViewer.component.ts

@@ -0,0 +1,87 @@
+/*!
+ * @license
+ * Copyright 2016 Alfresco Software, Ltd.
+ *
+ * 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.
+ */
+
+import { HttpClient } from '@angular/common/http';
+import { Component, Input, OnChanges, ViewEncapsulation } from '@angular/core';
+import { SimpleChanges } from '@angular/core';
+import 'rxjs/add/operator/toPromise';
+
+@Component({
+    selector: 'adf-txt-viewer',
+    templateUrl: './txtViewer.component.html',
+    styleUrls: ['./txtViewer.component.scss'],
+    host: { 'class': 'adf-txt-viewer' },
+    encapsulation: ViewEncapsulation.None
+})
+export class TxtViewerComponent implements OnChanges {
+
+    @Input()
+    urlFile: any;
+
+    @Input()
+    blobFile: Blob;
+
+    content: string;
+
+    constructor(private http: HttpClient) {
+    }
+
+    ngOnChanges(changes: SimpleChanges): Promise<any> {
+
+        let blobFile = changes['blobFile'];
+        if (blobFile && blobFile.currentValue) {
+            return this.readBlob(blobFile.currentValue);
+        }
+
+        let urlFile = changes['urlFile'];
+        if (urlFile && urlFile.currentValue) {
+            return this.getUrlContent(urlFile.currentValue);
+        }
+
+        if (!this.urlFile && !this.blobFile) {
+            throw new Error('Attribute urlFile or blobFile is required');
+        }
+    }
+
+    private getUrlContent(url: string): Promise<any> {
+        return new Promise((resolve, reject) => {
+            this.http.get(url, { responseType: 'text' }).subscribe(res => {
+                this.content = res;
+                resolve();
+            }, (event) => {
+                reject(event);
+            });
+        });
+    }
+
+    private readBlob(blob: Blob): Promise<any> {
+        return new Promise((resolve, reject) => {
+            let reader = new FileReader();
+
+            reader.onload = () => {
+                this.content = reader.result;
+                resolve();
+            };
+
+            reader.onerror = (error: ErrorEvent) => {
+                reject(error);
+            };
+
+            reader.readAsText(blob);
+        });
+    }
+}