mirror of
https://github.com/Alfresco/alfresco-ng2-components.git
synced 2025-05-12 17:04:57 +00:00
505 lines
16 KiB
Markdown
505 lines
16 KiB
Markdown
---
|
|
Title: Viewer component
|
|
Added: v2.0.0
|
|
Status: Active
|
|
Last reviewed: 2019-03-25
|
|
---
|
|
|
|
# [Viewer component](../../../lib/core/viewer/components/viewer.component.ts "Defined in viewer.component.ts")
|
|
|
|
Displays content from an ACS repository.
|
|
|
|
See it live: [Viewer Quickstart](https://embed.plnkr.co/iTuG1lFIXfsP95l6bDW6/)
|
|
|
|
## Contents
|
|
|
|
- [Basic usage](#basic-usage)
|
|
- [Transclusions](#transclusions)
|
|
- [Class members](#class-members)
|
|
- [Properties](#properties)
|
|
- [Events](#events)
|
|
- [Keyboard shortcuts](#keyboard-shortcuts)
|
|
- [Details](#details)
|
|
- [Integrating with the Document List component](#integrating-with-the-document-list-component)
|
|
- [Custom file parameters](#custom-file-parameters)
|
|
- [Supported file formats](#supported-file-formats)
|
|
- [Content Renditions](#content-renditions)
|
|
- [Configuring PDF.js library](#configuring-pdfjs-library)
|
|
- [Extending the Viewer](#extending-the-viewer)
|
|
- [Custom layout](#custom-layout)
|
|
- [Printing](#printing)
|
|
- [See also](#see-also)
|
|
|
|
## Basic usage
|
|
|
|
Using with node id:
|
|
|
|
```html
|
|
<adf-viewer
|
|
[showViewer]="true"
|
|
[overlayMode]="true"
|
|
[nodeId]="'d367023a-7ebe-4f3a-a7d0-4f27c43f1045'">
|
|
</adf-viewer>
|
|
```
|
|
|
|
Using with file url:
|
|
|
|
```html
|
|
<adf-viewer
|
|
[overlayMode]="true"
|
|
[urlFile]="'filename.pdf'">
|
|
</adf-viewer>
|
|
```
|
|
|
|
Using with shared link:
|
|
|
|
```html
|
|
<adf-viewer
|
|
[overlayMode]="true"
|
|
[sharedLinkId]="'WWDg_afiTU6lHEgr4fAbQA'">
|
|
</adf-viewer>
|
|
```
|
|
|
|
Note that if you have a URL which contains a shared link ID, you should extract the
|
|
ID portion and use it with the `sharedLinkId` property rather than using the whole
|
|
URL with `urlFile`.
|
|
|
|
### [Transclusions](../../user-guide/transclusion.md)
|
|
|
|
The [Viewer component](viewer.component.md) lets you transclude content for the toolbar (and toolbar buttons),
|
|
the sidebar, thumbnails, and the "Open with" and "More actions" menus.
|
|
See the [Custom layout](#custom-layout) section for full details of all available tranclusions.
|
|
|
|
## Class members
|
|
|
|
### Properties
|
|
|
|
| Name | Type | Default value | Description |
|
|
| ---- | ---- | ------------- | ----------- |
|
|
| allowDownload | `boolean` | true | Toggles downloading. |
|
|
| allowFullScreen | `boolean` | true | Toggles the 'Full Screen' feature. |
|
|
| allowGoBack | `boolean` | true | Allows `back` navigation |
|
|
| allowLeftSidebar | `boolean` | false | Allow the left the sidebar. |
|
|
| allowNavigate | `boolean` | false | Toggles before/next navigation. You can use the arrow buttons to navigate between documents in the collection. |
|
|
| allowPrint | `boolean` | false | Toggles printing. |
|
|
| allowRightSidebar | `boolean` | false | Allow the right sidebar. |
|
|
| allowThumbnails | `boolean` | true | Toggles PDF thumbnails. |
|
|
| blobFile | [`Blob`](https://developer.mozilla.org/en-US/docs/Web/API/Blob) | | Loads a [Blob](https://developer.mozilla.org/en-US/docs/Web/API/Blob) File |
|
|
| canNavigateBefore | `boolean` | true | Toggles the "before" ("<") button. Requires `allowNavigate` to be enabled. |
|
|
| canNavigateNext | `boolean` | true | Toggles the next (">") button. Requires `allowNavigate` to be enabled. |
|
|
| displayName | `string` | | Specifies the name of the file when it is not available from the URL. |
|
|
| fileName | `string` | | Content filename. |
|
|
| maxRetries | `number` | 30 | Number of times the Viewer will retry fetching content Rendition. There is a delay of at least one second between attempts. |
|
|
| mimeType | `string` | | MIME type of the file content (when not determined by the filename extension). |
|
|
| nodeId | `string` | null | [Node](https://github.com/Alfresco/alfresco-js-api/blob/development/src/api/content-rest-api/docs/Node.md) Id of the file to load. |
|
|
| overlayMode | `boolean` | false | If `true` then show the Viewer as a full page over the current content. Otherwise fit inside the parent div. |
|
|
| sharedLinkId | `string` | null | Shared link id (to display shared file). |
|
|
| showLeftSidebar | `boolean` | false | Toggles left sidebar visibility. Requires `allowLeftSidebar` to be set to `true`. |
|
|
| showRightSidebar | `boolean` | false | Toggles right sidebar visibility. Requires `allowRightSidebar` to be set to `true`. |
|
|
| showToolbar | `boolean` | true | Hide or show the toolbar |
|
|
| showViewer | `boolean` | true | Hide or show the viewer |
|
|
| sidebarLeftTemplate | [`TemplateRef`](https://angular.io/api/core/TemplateRef)`<any>` | null | The template for the left sidebar. The template context contains the loaded node data. |
|
|
| sidebarRightTemplate | [`TemplateRef`](https://angular.io/api/core/TemplateRef)`<any>` | null | The template for the right sidebar. The template context contains the loaded node data. |
|
|
| thumbnailsTemplate | [`TemplateRef`](https://angular.io/api/core/TemplateRef)`<any>` | null | The template for the pdf thumbnails. |
|
|
| urlFile | `string` | "" | If you want to load an external file that does not come from ACS you can use this URL to specify where to load the file from. |
|
|
| urlFileViewer | `string` | null | Viewer to use with the `urlFile` address (`pdf`, `image`, `media`, `text`). Used when `urlFile` has no filename and extension. |
|
|
|
|
### Events
|
|
|
|
| Name | Type | Description |
|
|
| ---- | ---- | ----------- |
|
|
| extensionChange | [`EventEmitter`](https://angular.io/api/core/EventEmitter)`<string>` | Emitted when the filename extension changes. |
|
|
| goBack | [`EventEmitter`](https://angular.io/api/core/EventEmitter)`<`[`BaseEvent`](../../../lib/core/events/base.event.ts)`<any>>` | Emitted when user clicks the 'Back' button. |
|
|
| invalidSharedLink | [`EventEmitter`](https://angular.io/api/core/EventEmitter)`<>` | Emitted when the shared link used is not valid. |
|
|
| navigateBefore | [`EventEmitter`](https://angular.io/api/core/EventEmitter)`<MouseEvent \| KeyboardEvent>` | Emitted when user clicks 'Navigate Before' ("<") button. |
|
|
| navigateNext | [`EventEmitter`](https://angular.io/api/core/EventEmitter)`<MouseEvent \| KeyboardEvent>` | Emitted when user clicks 'Navigate Next' (">") button. |
|
|
| print | [`EventEmitter`](https://angular.io/api/core/EventEmitter)`<`[`BaseEvent`](../../../lib/core/events/base.event.ts)`<any>>` | Emitted when user clicks the 'Print' button. |
|
|
| showViewerChange | [`EventEmitter`](https://angular.io/api/core/EventEmitter)`<boolean>` | Emitted when the viewer is shown or hidden. |
|
|
|
|
## Keyboard shortcuts
|
|
|
|
| Name | Description |
|
|
| ---- | ----------- |
|
|
| Esc | Close the viewer (overlay mode only). |
|
|
| Left | Invoke 'Navigate before' action. |
|
|
| Right | Invoke 'Navigate next' action. |
|
|
| Ctrl+F | Activate full-screen mode. |
|
|
|
|
## Details
|
|
|
|
### Integrating with the Document List component
|
|
|
|
Below is the most simple integration of the Viewer and
|
|
[Document List](../../content-services/components/document-list.component.md) components within your custom component:
|
|
|
|
```html
|
|
<adf-document-list
|
|
currentFolderId="-my-"
|
|
(preview)="showPreview($event)">
|
|
</adf-document-list>
|
|
|
|
<adf-viewer
|
|
[(showViewer)]="showViewer"
|
|
[overlayMode]="true"
|
|
[nodeId]="nodeId">
|
|
</adf-viewer>
|
|
```
|
|
|
|
The component controller class implementation might look like the following:
|
|
|
|
```ts
|
|
export class OverlayViewerComponent {
|
|
|
|
@Input()
|
|
showViewer: boolean = false;
|
|
|
|
nodeId: string;
|
|
|
|
showPreview(event) {
|
|
if (event.value.entry.isFile) {
|
|
this.nodeId = event.value.entry.id;
|
|
this.showViewer = true;
|
|
}
|
|
}
|
|
}
|
|
```
|
|
|
|
### Custom file parameters
|
|
|
|
You can provide custom file parameters, for example a value for the `mimeType` or `displayName` when using URL values that have no file names or extensions:
|
|
|
|
```html
|
|
<adf-viewer
|
|
[displayName]="fileName"
|
|
[allowGoBack]="false"
|
|
[mimeType]="mimeType"
|
|
[urlFile]="fileUrl">
|
|
</adf-viewer>
|
|
```
|
|
|
|
### Supported file formats
|
|
|
|
The [Viewer component](viewer.component.md) consists of separate Views that handle particular file types or type families based on either a file extension or a mime type:
|
|
|
|
- PDF View
|
|
- application/pdf
|
|
- \*.pdf
|
|
- Image View
|
|
- image/png
|
|
- image/jpeg
|
|
- image/gif
|
|
- image/bmp
|
|
- image/svg+xml
|
|
- \*.png
|
|
- \*.jpg
|
|
- \*.jpeg
|
|
- \*.gif
|
|
- \*.bpm
|
|
- \*.svg
|
|
- Text View
|
|
- text/plain
|
|
- text/csv
|
|
- text/xml
|
|
- text/html
|
|
- application/x-javascript
|
|
- \*.txt
|
|
- \*.xml
|
|
- \*.js
|
|
- \*.html
|
|
- \*.json
|
|
- \*.ts
|
|
- Media View
|
|
- video/mp4
|
|
- video/webm
|
|
- video/ogg
|
|
- audio/mpeg
|
|
- audio/ogg
|
|
- audio/wav
|
|
- \*.wav
|
|
- \*.mp4
|
|
- \*.mp3
|
|
- \*.webm
|
|
- \*.ogg
|
|
|
|
### Content Renditions
|
|
|
|
For those extensions and mime types that cannot be natively displayed in the browser, the Viewer will try to fetch the corresponding rendition using the [renditions service api](../services/renditions.service.md).
|
|
|
|
For the full list of supported types please refer to: [File types that support preview and thumbnail generation](http://docs.alfresco.com/5.2/references/valid-transformations-preview.html).
|
|
|
|
### Configuring PDF.js library
|
|
|
|
Configure your webpack-enabled application with the PDF.js library as follows.
|
|
|
|
1. Install pdfjs-dist
|
|
|
|
```sh
|
|
npm install pdfjs-dist
|
|
```
|
|
|
|
2. Update `vendors.ts` by appending the following code. This will enable the [viewer component](viewer.component.md)
|
|
and compatibility mode for all browsers. It will also configure the web worker for the PDF.js
|
|
library to render PDF files in the background:
|
|
|
|
```ts
|
|
// PDF.js
|
|
require('pdfjs-dist/web/compatibility.js');
|
|
const pdfjsLib = require('pdfjs-dist');
|
|
pdfjsLib.PDFJS.workerSrc = './pdf.worker.js';
|
|
require('pdfjs-dist/web/pdf_viewer.js');
|
|
```
|
|
|
|
3. Update the `plugins` section of the `webpack.common.js` file with the following lines:
|
|
|
|
```js
|
|
new CopyWebpackPlugin([
|
|
...
|
|
{
|
|
from: 'node_modules/pdfjs-dist/build/pdf.worker.js',
|
|
to: 'pdf.worker.js'
|
|
}
|
|
])
|
|
```
|
|
|
|
The [Viewer component](viewer.component.md) should now be able to display PDF files.
|
|
|
|
### Extending the Viewer
|
|
|
|
You can define your own custom handler to handle other file formats that are not yet supported by
|
|
the [Viewer component](viewer.component.md). Below is an example that shows how to use the `adf-viewer-extension`
|
|
to handle 3D data files:
|
|
|
|
```html
|
|
<adf-viewer [nodeId]="nodeId">
|
|
|
|
<adf-viewer-extension [supportedExtensions]="['obj','3ds']" #extension>
|
|
<ng-template let-urlFileContent="urlFileContent" let-extension="extension">
|
|
<threed-viewer
|
|
[urlFile]="urlFileContent"
|
|
[extension]="extension">
|
|
</threed-viewer>
|
|
</ng-template>
|
|
</adf-viewer-extension>
|
|
|
|
</adf-viewer>
|
|
```
|
|
|
|
Note: you need to add the `ng2-3d-editor` dependency to your `package.json` file to make the example above work.
|
|
|
|
You can define multiple `adf-viewer-extension` templates if required:
|
|
|
|
```html
|
|
<adf-viewer [nodeId]="nodeId">
|
|
|
|
<adf-viewer-extension [supportedExtensions]="['xls','xlsx']" #extension>
|
|
<ng-template let-urlFileContent="urlFileContent">
|
|
<my-custom-xls-component
|
|
urlFileContent="urlFileContent">
|
|
</my-custom-xls-component>
|
|
</ng-template>
|
|
</adf-viewer-extension>
|
|
|
|
<adf-viewer-extension [supportedExtensions]="['txt']" #extension>
|
|
<ng-template let-urlFileContent="urlFileContent" >
|
|
<my-custom-txt-component
|
|
urlFileContent="urlFileContent">
|
|
</my-custom-txt-component>
|
|
</ng-template>
|
|
</adf-viewer-extension>
|
|
</adf-viewer>
|
|
```
|
|
|
|
### Custom layout
|
|
|
|
The [Viewer component](viewer.component.md) lets you transclude custom content in several different places as
|
|
explained in the sections below.
|
|
|
|
#### Custom toolbar
|
|
|
|
You can replace the standard viewer toolbar with your own custom implementation:
|
|
|
|
```html
|
|
<adf-viewer>
|
|
<adf-viewer-toolbar>
|
|
<h1>toolbar</h1>
|
|
</adf-viewer-toolbar>
|
|
</adf-viewer>
|
|
```
|
|
|
|
Everything you put inside the "adf-viewer-toolbar" tags will be rendered instead of the
|
|
standard toolbar.
|
|
|
|
#### Custom toolbar buttons
|
|
|
|
If you are happy with the custom toolbar's behaviour but want to add some extra buttons
|
|
then you can do so as shown in the following example:
|
|
|
|
```html
|
|
<adf-viewer>
|
|
<adf-viewer-toolbar-actions>
|
|
<button mat-icon-button>
|
|
<mat-icon>alarm</mat-icon>
|
|
</button>
|
|
<button mat-icon-button>
|
|
<mat-icon>backup</mat-icon>
|
|
</button>
|
|
<button mat-icon-button>
|
|
<mat-icon>bug_report</mat-icon>
|
|
</button>
|
|
</adf-viewer-toolbar-actions>
|
|
</adf-viewer>
|
|
```
|
|
|
|
The result should look like this:
|
|
|
|
|
|
|
|
#### Custom sidebar
|
|
|
|
The [Viewer component](viewer.component.md) also supports custom sidebar components and layouts.
|
|
Set the `allowRightSidebar` property to `true` to enable this feature.
|
|
|
|
The custom sidebar can be injected in two different ways. The first way is to use
|
|
transclusion, which will display all content placed inside the `<adf-viewer-sidebar>` element:
|
|
|
|
```html
|
|
<adf-viewer [allowRightSidebar]="true">
|
|
<adf-viewer-sidebar>
|
|
<h1>My info</h1>
|
|
</adf-viewer-sidebar>
|
|
</adf-viewer>
|
|
```
|
|
|
|
The second way to customize the sidebar is to use template injection but note that this only works
|
|
when using the viewer with `nodeId`.
|
|
|
|
```html
|
|
<ng-template let-node="node" #sidebarTemplate>
|
|
<adf-content-metadata-card [node]="node"></adf-content-metadata-card>
|
|
</ng-template>
|
|
<adf-viewer [allowRightSidebar]="true" [sidebarRightTemplate]="sidebarTemplate"></adf-viewer>
|
|
```
|
|
|
|
#### Custom thumbnails
|
|
|
|
The PDF viewer comes with its own default list of thumbnails but you can replace this
|
|
by providing a custom template and binding to the context property `viewer` to access the PDFJS.PDFViewer
|
|
instance.
|
|
|
|
|
|
|
|
Provide the custom template as in the following example:
|
|
|
|
```javascript
|
|
import { Component, Input } from '@angular/core';
|
|
|
|
@Component({
|
|
selector: 'custom-thumbnails',
|
|
template: '<p> Custom Thumbnails Component </p>'
|
|
})
|
|
export class CustomThumbnailsComponent {
|
|
@Input() pdfViewer: any;
|
|
|
|
...
|
|
}
|
|
```
|
|
|
|
```html
|
|
<ng-template #customThumbnailsTemplate let-pdfViewer="viewer">
|
|
<custom-thumbnails [pdfViewer]="pdfViewer"></custom-thumbnails>
|
|
</ng-template>
|
|
|
|
<adf-viewer [thumbnailsTemplate]="customThumbnailsTemplate"></adf-viewer>
|
|
```
|
|
|
|
#### Custom "Open With" menu
|
|
|
|
You can enable a custom "Open With" menu by providing at least one action inside the
|
|
`adf-viewer-open-with` tag:
|
|
|
|
```html
|
|
<adf-viewer [nodeId]="nodeId">
|
|
|
|
<adf-viewer-open-with>
|
|
<button mat-menu-item>
|
|
<mat-icon>dialpad</mat-icon>
|
|
<span>Option 1</span>
|
|
</button>
|
|
<button mat-menu-item disabled>
|
|
<mat-icon>voicemail</mat-icon>
|
|
<span>Option 2</span>
|
|
</button>
|
|
<button mat-menu-item>
|
|
<mat-icon>notifications_off</mat-icon>
|
|
<span>Option 3</span>
|
|
</button>
|
|
</adf-viewer-open-with>
|
|
|
|
</adf-viewer>
|
|
```
|
|
|
|
|
|
|
|
#### Custom "More actions" menu
|
|
|
|
You can enable a custom "More actions" menu by providing at least one action inside the `adf-viewer-more-actions` tag:
|
|
|
|
```html
|
|
<adf-viewer [nodeId]="nodeId">
|
|
|
|
<adf-viewer-more-actions>
|
|
<button mat-menu-item>
|
|
<mat-icon>dialpad</mat-icon>
|
|
<span>Action One</span>
|
|
</button>
|
|
<button mat-menu-item disabled>
|
|
<mat-icon>voicemail</mat-icon>
|
|
<span>Action Two</span>
|
|
</button>
|
|
<button mat-menu-item>
|
|
<mat-icon>notifications_off</mat-icon>
|
|
<span>Action Three</span>
|
|
</button>
|
|
</adf-viewer-more-actions>
|
|
|
|
</adv-viewer>
|
|
```
|
|
|
|
|
|
|
|
#### Custom zoom scaling
|
|
|
|
You can set a default zoom scaling value for pdf viewer by adding the following code in `app.config.json`.
|
|
Note: For the pdf viewer the value has to be within the range of 25 - 1000.
|
|
|
|
"adf-viewer": {
|
|
"pdf-viewer-scaling": 150
|
|
}
|
|
|
|
In the same way you can set a default zoom scaling value for the image viewer by adding the following code in `app.config.json`.
|
|
|
|
"adf-viewer": {
|
|
"image-viewer-scaling": 150
|
|
}
|
|
|
|
By default the viewer's zoom scaling is set to 100%.
|
|
|
|
### Printing
|
|
|
|
You can configure the Viewer to let the user print the displayed content. The
|
|
component will show a "Print" button if the `allowPrint` property is set to
|
|
true.
|
|
|
|
```html
|
|
<adf-viewer [allowPrint]="true">
|
|
...
|
|
</adf-viewer>
|
|
```
|
|
|
|
You can also use the `print` event to get notification when the user prints some
|
|
content.
|
|
|
|
## See also
|
|
|
|
- [Document List component](../../content-services/components/document-list.component.md)
|