How to Insert Scripts and Styles
You can use the DomInsertionService in @abp/ng.core package in order to insert scripts and styles in an easy and explicit way.
Getting Started
You do not have to provide the DomInsertionService at module or component level, because it is already provided in root. You can inject and start using it immediately in your components, directives, or services.
import { DomInsertionService } from '@abp/ng.core';
@Component({
/* class metadata here */
})
class DemoComponent {
constructor(private domInsertionService: DomInsertionService) {}
}
Usage
You can use the insertContent method of DomInsertionService to create a <script> or <style> element with given content in the DOM at the desired position.
How to Insert Scripts
The first parameter of insertContent method expects a ContentStrategy. If you pass a ScriptContentStrategy instance, the DomInsertionService will create a <script> element with given content and place it in the designated DOM position.
import { DomInsertionService, CONTENT_STRATEGY } from '@abp/ng.core';
@Component({
/* class metadata here */
})
class DemoComponent {
constructor(private domInsertionService: DomInsertionService) {}
ngOnInit() {
this.domInsertionService.insertContent(
CONTENT_STRATEGY.AppendScriptToBody('alert()')
);
}
}
In the example above, <script>alert()</script> element will place at the end of <body>.
Please refer to ContentStrategy to see all available content strategies and how you can build your own content strategy.
How to Insert Styles
If you pass a StyleContentStrategy instance as the first parameter of insertContent method, the DomInsertionService will create a <style> element with given content and place it in the designated DOM position.
import { DomInsertionService, CONTENT_STRATEGY } from '@abp/ng.core';
@Component({
/* class metadata here */
})
class DemoComponent {
constructor(private domInsertionService: DomInsertionService) {}
ngOnInit() {
this.domInsertionService.insertContent(
CONTENT_STRATEGY.AppendStyleToHead('body {margin: 0;}')
);
}
}
In the example above, <style>body {margin: 0;}</style> element will place at the end of <head>.
Please refer to ContentStrategy to see all available content strategies and how you can build your own content strategy.
API
insertContent
insertContent(strategy: ContentStrategy): void
strategy parameter is the primary focus here and is explained above.
