[ADF-2463] Moved doc files to subfolders (#3081)

docs/process-services/task-attachment-list.component.md

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+---
+Added: v2.0.0
+Status: Active
+Last reviewed: 2018-03-13
+---
+# Task Attachment List Component
+
+Displays attached documents on a specified task.
+
+![task-attachment-list-sample](../docassets/images/task-attachment-list.png)
+
+## Basic Usage
+
+```html
+<adf-task-attachment-list 
+    [taskId]="YOUR_TASK_ID" 
+    (attachmentClick)="YOUR_HANDLER">
+</adf-task-attachment-list>
+```
+
+### Properties
+
+| Name | Type | Default value | Description |
+| ---- | ---- | ------------- | ----------- |
+| taskId | `string` |  | (**required**) The ID of the task to display.  |
+| disabled | `boolean` | `false` | Disable/Enable read only mode for attachement list.  |
+
+### Events
+
+| Name | Type | Description |
+| ---- | ---- | ----------- |
+| attachmentClick | `EventEmitter<{}>` | Emitted when the attachment is double-clicked or a view option is selected from the context menu by the user from within the component. Returns a Blob representing the clicked object. |
+| success | `EventEmitter<{}>` | Emitted when the attachment list has fetched all the attachments. Returns a list of attachments. |
+| error | `EventEmitter<any>` | Emitted when an error occurs while fetching the attachments. |
+
+## Details
+
+If the List is empty, a default "no content" template is displayed.
+
+![default-no-content-template-sample](../docassets/images/default-no-content-template.png)
+
+### How to Add Drag and Drop Functionality
+
+You can wrap the component with an [Upload Drag Area component](../content-services/upload-drag-area.component.md)
+to enable the user to upload attachments for empty lists. When you do this, you can also pass
+a custom _no content template_ as shown below. The component invites the user to drag files to
+upload whenever the list is empty.
+
+```html
+<adf-upload-drag-area
+    [parentId]="YOUR_TASK_ID"
+    [showNotificationBar]="BOOLEAN">
+    <adf-task-attachment-list  
+        [taskId]="YOUR_TASK_ID"
+        (attachmentClick)="YOUR_HANDLER">
+        <adf-empty-list>
+            <div adf-empty-list-header>{{This List is empty}}</div>
+            <div adf-empty-list-body>{{Drag and drop to upload}}</div>
+            <div adf-empty-list-footer>
+                <img [src]="Your custom image URL"></div> 
+        </adf-empty-list>
+    </adf-task-attachment-list>
+</adf-upload-drag-area>
+```
+
+```ts
+import { UploadService } from '@alfresco/adf-core';
+import { TaskUploadService } from '@alfresco/adf-process-services';
+```
+
+Make sure you override the `UploadService` with the `TaskUploadService`
+
+```ts
+@Component({
+    selector: 'my-custom-task-attachment',
+    providers: [
+        { provide: UploadService, useClass: TaskUploadService }
+    ]
+})
+export class MyCustomTaskAttachmentComponent {
+    constructor() {}
+}
+```
+
+[Upload Drag Area Component](../content-services/upload-drag-area.component.md)
+
+If the List is empty, the custom no-content template we passed is displayed. 
+
+![custom-no-content-drag-drop-template-sample](../docassets/images/custom-no-content-drag-drop-template.png)