DjxWidgetBase.ts
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| 3.8 KiB
| video/mp2t
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r71 | import { AbstractConstructor, djbase, djclass } from "../declare"; | ||
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r65 | import _WidgetBase = require("dijit/_WidgetBase"); | ||
| import _AttachMixin = require("dijit/_AttachMixin"); | ||||
| import { Rendition, isNode, startupWidgets } from "./traits"; | ||||
| import registry = require("dijit/registry"); | ||||
| // type Handle = dojo.Handle; | ||||
| export interface EventArgs { | ||||
| bubbles?: boolean; | ||||
| cancelable?: boolean; | ||||
| composed?: boolean; | ||||
| } | ||||
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r71 | export interface DjxWidgetBase<Attrs = {}, Events extends { [name in keyof Events]: Event } = {}> extends | ||
| _WidgetBase<Events> { | ||||
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r72 | |||
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r73 | /** This property is declared only for type inference to work, it is never assigned | ||
| * and should not be used. | ||||
| */ | ||||
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r72 | readonly _eventMap: Events & GlobalEventHandlersEventMap; | ||
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r71 | } | ||
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r65 | |||
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r71 | type _super = { | ||
| startup(): void; | ||||
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r65 | } | ||
| @djclass | ||||
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r71 | export abstract class DjxWidgetBase<Attrs = {}, Events = {}> extends djbase<_super, _AttachMixin>(_WidgetBase, _AttachMixin) { | ||
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r65 | |||
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r73 | /** The list of pairs of event and method names. When the widget is created all methods from | ||
| * this list will be connected to corresponding events. | ||||
| */ | ||||
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r72 | _eventHandlers: Array<{ | ||
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r73 | eventName: string, | ||
| handlerMethod: keyof any; | ||||
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r72 | }> = []; | ||
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r65 | buildRendering() { | ||
| this.domNode = this.render().getDomNode(); | ||||
| super.buildRendering(); | ||||
| // now we should get assigned data-dojo-attach-points | ||||
| // place the contents of the original srcNode to the containerNode | ||||
| const src = this.srcNodeRef; | ||||
| const dest = this.containerNode; | ||||
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r73 | // the donNode is constructed now we need to connect event handlers | ||
| this._connectEventHandlers(); | ||||
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r65 | if (src && dest) { | ||
| while (src.firstChild) | ||||
| dest.appendChild(src.firstChild); | ||||
| } | ||||
| } | ||||
| abstract render(): Rendition<HTMLElement>; | ||||
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r72 | private _connectEventHandlers() { | ||
| this._eventHandlers.forEach(({eventName, handlerMethod}) => { | ||||
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r73 | const handler = this[handlerMethod as keyof this]; | ||
| if (typeof handler === "function") | ||||
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r77 | this.on(eventName, handler.bind(this)); | ||
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r72 | }); | ||
| } | ||||
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r65 | _processTemplateNode<T extends (Element | Node | _WidgetBase)>( | ||
| baseNode: T, | ||||
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r71 | getAttrFunc: (baseNode: T, attr: string) => any, | ||
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r65 | // tslint:disable-next-line: ban-types | ||
| attachFunc: (node: T, type: string, func?: Function) => dojo.Handle | ||||
| ): boolean { | ||||
| if (isNode(baseNode)) { | ||||
| const w = registry.byNode(baseNode); | ||||
| if (w) { | ||||
| // from dijit/_WidgetsInTemplateMixin | ||||
| this._processTemplateNode(w, | ||||
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r71 | (n, p) => n.get(p as any), // callback to get a property of a widget | ||
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r65 | (widget, type, callback) => { | ||
| if (!callback) | ||||
| throw new Error("The callback must be specified"); | ||||
| // callback to do data-dojo-attach-event to a widget | ||||
| if (type in widget) { | ||||
| // back-compat, remove for 2.0 | ||||
| return widget.connect(widget, type, callback as EventListener); | ||||
| } else { | ||||
| // 1.x may never hit this branch, but it's the default for 2.0 | ||||
| return widget.on(type, callback); | ||||
| } | ||||
| }); | ||||
| // don't process widgets internals | ||||
| return false; | ||||
| } | ||||
| } | ||||
| return super._processTemplateNode(baseNode, getAttrFunc, attachFunc); | ||||
| } | ||||
| /** Starts current widget and all its supporting widgets (placed outside | ||||
| * `containerNode`) and child widgets (placed inside `containerNode`) | ||||
| */ | ||||
| startup() { | ||||
| // startup supporting widgets | ||||
| registry.findWidgets(this.domNode, this.containerNode).forEach(w => w.startup()); | ||||
| super.startup(); | ||||
| } | ||||
| } | ||||