Within my custom Angular component, a third-party library is dynamically adding an HTML element. I am seeking a solution that can apply Angular's encapsulation attributes to these elements regardless of the specific third-party library being used.
If there is an official method for accomplishing this task, I would appreciate guidance as I have not been able to find one. Alternatively, any reliable workaround or technique would be welcomed.
Discovering an unofficial method for achieving this task:
constructor(private hostRef: ElementRef) { }
getContentAttr(): string {
const attrs = this.hostRef.nativeElement.attributes
for (let i = 0, l = attrs.length; i < l; i++) {
if (attrs[i].name.startsWith('_nghost-c')) {
return `_ngcontent-c${attrs[i].name.substring(9)}`
}
}
}
ngAfterViewInit() {
// inserting HTML element dynamically
dynamicallyAddedHtmlElement.setAttribute(this.getContentAttr(), '')
}
IMPORTANT: This method allows for styling the newly added HTML element.
The assumption is that the naming convention of this attribute may not remain constant across different Angular versions, potentially causing issues when upgrading. However, updating the solution in such cases would likely be straightforward.
It would be beneficial for Angular to provide a function similar to getContentAttr that hides some of the internal complexities.
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