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import { djbase, djclass } from "../declare";
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import _WidgetBase = require("dijit/_WidgetBase");
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import _AttachMixin = require("dijit/_AttachMixin");
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import { BuildContext, isNode, startupWidgets } from "./traits";
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import registry = require("dijit/registry");
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// type Handle = dojo.Handle;
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export interface EventArgs {
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bubbles?: boolean;
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cancelable?: boolean;
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composed?: boolean;
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}
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export interface DjxWidgetBase<Attrs = any, Events extends { [name in keyof Events]: Event } = any> {
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set<K extends keyof Attrs & string>(key: K, value: Attrs[K]): this;
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set(props: Partial<Attrs>): this;
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get<K extends keyof Attrs & string>(key: K): Attrs[K];
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on<K extends keyof Events & string>(eventName: K, cb: (evt: Events[K]) => void): dojo.WatchHandle;
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emit<K extends keyof Events & string>(eventName: K, evt: Omit<Events[K], keyof Event> & EventArgs ): void;
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}
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@djclass
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export abstract class DjxWidgetBase<Attrs = any, Events = any> extends djbase(_WidgetBase, _AttachMixin) {
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buildRendering() {
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this.domNode = this.render().getDomNode();
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super.buildRendering();
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}
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abstract render(): BuildContext<HTMLElement>;
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_processTemplateNode<T extends (Element | Node | _WidgetBase)>(
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baseNode: T,
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getAttrFunc: (baseNode: T, attr: string) => string,
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// tslint:disable-next-line: ban-types
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attachFunc: (node: T, type: string, func?: Function) => dojo.Handle
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): boolean {
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if (isNode(baseNode)) {
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const w = registry.byNode(baseNode);
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if (w) {
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// from dijit/_WidgetsInTemplateMixin
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this._processTemplateNode(w,
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(n, p) => n.get(p), // callback to get a property of a widget
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(widget, type, callback) => {
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if (!callback)
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throw new Error("The callback must be specified");
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// callback to do data-dojo-attach-event to a widget
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if (type in widget) {
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// back-compat, remove for 2.0
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return widget.connect(widget, type, callback as EventListener);
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} else {
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// 1.x may never hit this branch, but it's the default for 2.0
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return widget.on(type, callback);
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}
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});
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// don't process widgets internals
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return false;
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}
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}
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return super._processTemplateNode(baseNode, getAttrFunc, attachFunc);
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}
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/** Starts current widget and all its supporting widgets (placed outside
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* `containerNode`) and child widgets (placed inside `containerNode`)*/
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startup() {
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// startup supporting widgets
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startupWidgets(this.domNode, this.containerNode);
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super.startup();
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}
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}
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