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import dom = require("dojo/dom-construct");
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import { argumentNotNull } from "@implab/core-amd/safe";
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import { BuildContextBase } from "./BuildContextBase";
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import { MapOf } from "@implab/core-amd/interfaces";
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// tslint:disable-next-line: class-name
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export interface _Widget {
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domNode: Node;
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get(attr: string): any;
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set(attr: string, value: any): void;
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set(attrs: MapOf<any>): void;
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containerNode?: Node
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}
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export type _WidgetCtor = new (attrs: any, srcNode?: string | Node) => _Widget;
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export class WidgetContext extends BuildContextBase {
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widgetClass: _WidgetCtor;
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_instance: _Widget | undefined;
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constructor(widgetClass: _WidgetCtor) {
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super();
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argumentNotNull(widgetClass, "widgetClass");
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this.widgetClass = widgetClass;
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}
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_addChild(child: any): void {
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if (!this._instance || !this._instance.containerNode)
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throw new Error("Widget doesn't support adding children");
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dom.place(this.getChildDom(child), this._instance.containerNode);
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}
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_setAttrs(attrs: object): void {
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this._instance?.set(attrs);
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}
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_create(attrs: object, children: any[]) {
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this._instance = new this.widgetClass(this._attrs);
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if (children)
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children.forEach(x => this._addChild(x));
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}
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_getDomNode() {
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if (!this._instance)
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throw new Error("The instance of the widget isn't created");
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return this._instance.domNode;
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}
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}
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