#612 simple upload widget (activiti form)

ng2-components/ng2-activiti-form/src/components/widgets/upload/upload.widget.ts

@@ -0,0 +1,103 @@
+/*!
+ * @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 { Component, OnInit } from '@angular/core';
+import { WidgetComponent } from './../widget.component';
+import { AlfrescoSettingsService, AlfrescoAuthenticationService } from 'ng2-alfresco-core';
+
+declare let __moduleName: string;
+declare var componentHandler;
+
+@Component({
+    moduleId: __moduleName,
+    selector: 'upload-widget',
+    templateUrl: './upload.widget.html',
+    styleUrls: ['./upload.widget.css']
+})
+export class UploadWidget extends WidgetComponent implements OnInit {
+
+    constructor(private settingsService: AlfrescoSettingsService,
+                private authService: AlfrescoAuthenticationService) {
+        super();
+    }
+
+    hasFile: boolean;
+    fileName: string;
+
+    ngOnInit() {
+        if (this.field &&
+            this.field.value &&
+            this.field.value.length > 0) {
+            this.hasFile = true;
+        }
+    }
+
+    getUploadedFileName(): string {
+        let result = this.fileName;
+
+        if (this.field &&
+            this.field.value &&
+            this.field.value.length > 0) {
+            let file = this.field.value[0];
+            result = file.name;
+        }
+
+        return result;
+    }
+
+    reset() {
+        this.field.value = null;
+        this.field.json.value = null;
+        this.hasFile = false;
+    }
+
+    onFileChanged(event: any) {
+        let files = event.srcElement.files;
+        if (files && files.length > 0) {
+
+            let file = files[0];
+
+            this.hasFile = true;
+            this.fileName = file.name;
+
+            let formData: FormData = new FormData();
+            formData.append("file", file, file.name);
+
+            let xhr: XMLHttpRequest = new XMLHttpRequest();
+
+            xhr.onreadystatechange = () => {
+                if (xhr.readyState === 4) {
+                    if (xhr.status === 200) {
+                        let jsonFile = JSON.parse(xhr.response);
+                        console.log(jsonFile);
+                        this.field.value = [jsonFile];
+                        this.field.json.value = [jsonFile];
+                    } else {
+                        console.error(xhr.response);
+                        window.alert('Error uploading file. See console output for more details.');
+                    }
+                }
+            };
+
+            let url = `${this.settingsService.bpmHost}/activiti-app/app/rest/content/raw`;
+            xhr.open('POST', url, true);
+            xhr.setRequestHeader('Authorization', this.authService.getTicketBpm());
+            xhr.send(formData);
+        }
+    }
+
+}