14
다른 사람이이 항목의 논리를 도울 수 있기를 바랍니다. 각도 유니버설이 각 구성 요소의 스타일을 삽입하는 방식을 수정하고 싶습니다. 렌더러를 확장하는 방법을 알고있는 사람은 API 요청을 수행하여 다른 위치에서 스타일 시트를 가져옵니다. 렌더러 예제와 API 요청에 대한 예가 필요할 것입니다.각도 4 범용 렌더러 확장
나는이 오래된 것을보고있다. https://github.com/ralfstx/angular2-renderer-example/blob/master/src/custom-renderer.ts
import {
Injectable,
Renderer,
RootRenderer,
RenderComponentType
} from '@angular/core';
export class Element {
constructor(private nodeName: string, private parent?: Element) {
}
toString() {
return '<' + this.nodeName + '>';
}
};
@Injectable()
export class CustomRootRenderer extends RootRenderer {
private _registeredComponents: Map<string, CustomRenderer> = new Map<string, CustomRenderer>();
renderComponent(componentProto: RenderComponentType): Renderer {
var renderer = this._registeredComponents.get(componentProto.id);
if (!renderer) {
renderer = new CustomRenderer(this);
this._registeredComponents.set(componentProto.id, renderer);
}
return renderer;
}
}
@Injectable()
export class CustomRenderer extends Renderer {
constructor(private _rootRenderer: CustomRootRenderer) {
super();
console.log('CustomRenderer created');
}
renderComponent(componentType: RenderComponentType): Renderer {
return this._rootRenderer.renderComponent(componentType);
}
selectRootElement(selector: string): Element {
console.log('selectRootElement', selector);
return new Element('Root');
}
createElement(parentElement: Element, name: string): Element {
console.log('createElement', 'parent: ' + parentElement, 'name: ' + name);
return new Element(name, parentElement);
}
createViewRoot(hostElement: Element): Element {
console.log('createViewRoot', 'host: ' + hostElement);
return hostElement;
}
createTemplateAnchor(parentElement: Element): Element {
console.log('createTemplateAnchor', 'parent: ' + parentElement);
return new Element('?');
}
createText(parentElement: Element, value: string): Element {
console.log('createText', 'parent: ' + parentElement, 'value: ' + value);
return new Element('text');
}
projectNodes(parentElement: Element, nodes: Element[]) {
console.log('projectNodes', 'parent: ' + parentElement, 'nodes: ' + nodes.map(node => node.toString()));
}
attachViewAfter(node: Element, viewRootNodes: Element[]) {
console.log('attachViewAfter', 'node: ' + node, 'viewRootNodes: ' + viewRootNodes.map(node => node.toString()));
}
detachView(viewRootNodes: Element[]) {
console.log('detachView', 'viewRootNodes: ' + viewRootNodes.map(node => node.toString()));
}
destroyView(hostElement: Element, viewAllNodes: Element[]) {
console.log('destroyView', 'host: ' + hostElement, 'viewAllNodes: ' + viewAllNodes.map(node => node.toString()));
}
setElementProperty(renderElement: Element, propertyName: string, propertyValue: any): void {
console.log('setElementProperty', 'element: ' + renderElement, 'name: ' + propertyName, 'value: ' + propertyValue);
}
setElementAttribute(renderElement: Element, attributeName: string, attributeValue: string): void {
console.log('setElementAttribute', 'element: ' + renderElement, 'name: ' + attributeName, 'value: ' + attributeValue);
return this.setElementProperty(renderElement, attributeName, attributeValue);
}
listen(renderElement: Element, eventName: string, callback: Function): Function {
console.log('listen', 'element: ' + renderElement, 'eventName: ' + eventName);
return function() { };
}
listenGlobal(target: string, eventName: string, callback: Function): Function {
console.log('listen', 'target: ' + target, 'eventName: ' + eventName);
return function() { };
}
// Used only in debug mode to serialize property changes to comment nodes,
// such as <template> placeholders.
setBindingDebugInfo(renderElement: Element, propertyName: string, propertyValue: string): void {
console.log('setBindingDebugInfo', 'element: ' + renderElement, 'name: ' + propertyName, 'value: ' + propertyValue);
}
setElementClass(renderElement: Element, className: string, isAdd: boolean): void {
console.log('setElementClass', 'className' + className, 'isAdd: ' + isAdd);
}
setElementStyle(renderElement: Element, styleName: string, styleValue: string): void {
console.log('setElementStyle', 'name: ' + styleName, 'value: ' + styleValue);
}
invokeElementMethod(renderElement: Element, methodName: string, args: Array<any>) {
console.log('invokeElementMethod', 'name: ' + methodName, 'args: ' + args);
}
setText(renderNode: Element, text: string): void {
console.log('setText', 'node: ' + renderNode, 'text: ' + text);
}
}
어쩌면보기 캡슐화를 없음으로 설정하고 서비스 호출 후에 스타일을 본문 구성 요소에 추가하려고 할 수 있습니까? – cutoffurmind