@soeren_balke/ng-builder
Version:
This project was generated with [Angular CLI](https://github.com/angular/angular-cli) version 10.0.1. The ng-builder is a module to dynamicly build components. This Tool wrapps the angular viewContainerRef. The Components are easy to develop and use with
99 lines • 11.5 kB
JavaScript
import { Component, ViewChild, ComponentFactoryResolver, Input, Output, EventEmitter } from '@angular/core';
import { NgBuilderDirective } from './ng-builder.directive';
export class NgBuilderComponent {
constructor(componentFactoryResolver) {
this.componentFactoryResolver = componentFactoryResolver;
this.saveComponent = new EventEmitter();
}
set _componentList(value) {
if (value) {
this.componentList = value;
}
}
ngOnInit() {
this.viewContainerRef = this.builder.viewContainerRef;
this.renderdComonentList = [];
if (this.componentList && this.componentList.length > 0) {
this.update();
}
}
/**
* deprecated
*/
generateComponentList() {
this.update();
}
/**
* update rendert component list
*/
update() {
/**
* Add components
*/
for (const key in this.componentList) {
this.loadComponent(this.componentList[key], key);
}
/**
* Remove Components
*/
for (let i = (this.renderdComonentList.length - 1); i >= 0; i--) {
if (!this.componentList.includes(this.renderdComonentList[i])) {
if (this.viewContainerRef.get(i)) {
this.viewContainerRef.remove(i);
}
this.renderdComonentList.splice(i, 1);
}
}
}
clearComponentList() {
this.viewContainerRef.clear();
this.renderdComonentList = [];
}
loadComponent(component, index) {
if (this.renderdComonentList.includes(component)) {
const oldComponentIndex = this.renderdComonentList.indexOf(component);
if (index === oldComponentIndex) {
return;
}
const oldViewRef = this.viewContainerRef.get(oldComponentIndex);
this.viewContainerRef.move(oldViewRef, index);
this.renderdComonentList.splice(oldComponentIndex, 1);
this.renderdComonentList.splice(index, 0, component);
return;
}
const componentFactory = this.componentFactoryResolver.resolveComponentFactory(component.component);
const componentRef = this.viewContainerRef.createComponent(componentFactory, index);
const componentInstance = componentRef.instance;
if (component.data) {
componentInstance.data = component.data;
}
componentInstance.edit = component.edit;
componentInstance.saveEdit.subscribe(data => {
this.saveComponent.emit({
index: index,
component: component,
data: data
});
});
// this.renderdComonentList.push(component);
this.renderdComonentList.splice(index, 0, component);
}
}
NgBuilderComponent.decorators = [
{ type: Component, args: [{
selector: 'lib-ng-builder',
template: `
<ng-template libBuilder>
</ng-template>
`
},] }
];
NgBuilderComponent.ctorParameters = () => [
{ type: ComponentFactoryResolver }
];
NgBuilderComponent.propDecorators = {
_componentList: [{ type: Input, args: ['componentList',] }],
saveComponent: [{ type: Output }],
builder: [{ type: ViewChild, args: [NgBuilderDirective, { static: true },] }]
};
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i >= 0; i--) {\n      if(!this.componentList.includes(this.renderdComonentList[i])) {\n        if(this.viewContainerRef.get(i)) {\n          this.viewContainerRef.remove(i);\n        }\n        this.renderdComonentList.splice(i, 1);\n      }\n    }\n  }\n\n  clearComponentList() {\n    this.viewContainerRef.clear();\n    this.renderdComonentList = [];\n  }\n\n  private loadComponent(component, index) {\n    if (this.renderdComonentList.includes(component)) {\n      const oldComponentIndex = this.renderdComonentList.indexOf(component);\n      if(index === oldComponentIndex) {\n        return;\n      }\n      const oldViewRef: ViewRef = this.viewContainerRef.get(oldComponentIndex);\n      this.viewContainerRef.move(oldViewRef, index);\n      this.renderdComonentList.splice(oldComponentIndex, 1);\n      this.renderdComonentList.splice(index, 0, component);\n      return;\n    }\n\n    const componentFactory = this.componentFactoryResolver.resolveComponentFactory(component.component);\n\n    const componentRef = this.viewContainerRef.createComponent(componentFactory, index);\n    const componentInstance = (<any>componentRef.instance);\n\n    if (component.data) {\n      componentInstance.data = component.data;\n    }\n\n    componentInstance.edit = component.edit;\n    componentInstance.saveEdit.subscribe(data => {\n      this.saveComponent.emit({\n        index: index,\n        component: component,\n        data: data\n      });\n    });\n    // this.renderdComonentList.push(component);\n    this.renderdComonentList.splice(index, 0, component);\n  }\n\n}\n"]}