My solution using "content projection" and data binding through a
BehaviorSubject.
*page-layout.component (the shared HTML)*
<div style="background-color: red;">
<h2>subtitle: {{subtitle}}</h2>
<ng-content></ng-content>
</div>
import { Component, OnInit } from '@angular/core';
import { LayoutService } from '../../services/layout.service';
@Component({
selector: 'page-layout',
templateUrl: './page-layout.component.html',
styleUrls: ['./page-layout.component.css']
})
export class PageLayoutComponent implements OnInit {
subtitle = '';
constructor(private LayoutService: LayoutService) {
}
ngOnInit() {
this.LayoutService.observable.subscribe(x => {
if (console) {
console.log('PageLayoutComponent, subscribe: ' +
JSON.stringify(x));
}
this.subtitle = x.subtitle;
});
}
}
*assembly-list.component (a component using the shared HTML)*
<page-layout>
<p>ToDo</p>
</page-layout>
import { Component, OnInit } from '@angular/core';
import { LayoutService } from '../../services/layout.service';
@Component({
selector: 'assembly-list',
templateUrl: './assembly-list.component.html',
styleUrls: ['./assembly-list.component.css']
})
export class AssemblyListComponent implements OnInit {
constructor(private LayoutService: LayoutService) {
}
ngOnInit() {
this.LayoutService.emitTitle('AssemblyListComponent1',
'AssemblyListComponent2');
}
}
*layout-service (the data binding for the shared HTML)*
import { Component, Injectable } from '@angular/core';
import { BehaviorSubject } from 'rxjs/BehaviorSubject';
export interface ILayoutServiceData {
title: string;
subtitle: string;
}
@Injectable()
export class LayoutService {
private behaviorSubject: BehaviorSubject<ILayoutServiceData> = new
BehaviorSubject({title: null, subtitle: null});
observable = this.behaviorSubject.asObservable();
emitTitle(title: string, subtitle: string) {
if (console) {
console.log(`LayoutService.emitTitle(\'${title}\',
\'${subtitle}\'`);
}
const data: ILayoutServiceData = {
title: title,
subtitle: subtitle
};
this.behaviorSubject.next(data);
}
}
On Friday, 21 July 2017 09:22:38 UTC+2, halvorsen wrote:
>
> Hi Sander,
>
> Thanks, exactly what I was looking for. The only problem is that data
> binding does not work I have tried to the simplest possible solution I
> could think of, but maybe I need to use a BehaviorSubject and
> observable/subscribe?
>
> *page-layout.component*
>
> <div style="background-color: red;">
> <h1>{{subtitle}}</h1>
> <ng-content></ng-content>
> </div>
>
> import { Component } from '@angular/core';
>
> @Component({
> selector: 'page-layout',
> templateUrl: './page-layout.component.html',
> styleUrls: ['./page-layout.component.css']
> })
>
> export class PageLayoutComponent {
> subtitle = 'PageLayoutComponent';
> }
>
>
>
> *work-orders.component*
> <page-layout>
> ...
> </page-layout>
>
> import { Component, OnInit } from '@angular/core';
>
> import { PageLayoutComponent } from
> '../../components/page-layout/page-layout.component';
>
> @Component({
> selector: 'work-orders',
> templateUrl: './work-orders.component.html',
> styleUrls: ['./work-orders.component.css']
> })
>
> export class WorkOrdersComponent extends PageLayoutComponent implements
> OnInit {
> ngOnInit(): void {
> this.subtitle = 'WorkOrdersComponent';
> }
>
> constructor() {
> super();
> }
> }
>
> Regards,
> halvorsen
>
> On Friday, 21 July 2017 08:03:26 UTC+2, Sander Elias wrote:
>>
>> Hi Halvorsen,
>>
>> Yes that is possible, The easiest way is adding another components that
>> uses content projection.
>>
>> something like this:
>> import { Component } from '@angular/core';
>>
>> @Component({
>> selector: 'holder',
>> template: `
>> <div class="classB">
>> <h2>{{Subtitle}}</h2>
>> </div>
>> <div class="classC">
>> <ng-content></ng-content>
>> </div>
>> `
>> })
>> export class MyHolderComponent {}
>>
>> @Component({
>> selector: 'howToUse',
>> template: `
>> <holder>
>> Y_SPECIFIC_HTML
>> </holder>
>> `
>> })
>> export class MyHowToUseComponent {}
>>
>> But there are more way's to resolve your issue.
>>
>> Regards
>> Sander
>>
>
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