36 lines
1.3 KiB
TypeScript
36 lines
1.3 KiB
TypeScript
import { OnDestroy, OnInit } from "@angular/core";
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import { Subscription } from "rxjs/Subscription";
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import { ScalarWidgetApi } from "../shared/services/scalar/scalar-widget.api";
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export abstract class CapableWidget implements OnInit, OnDestroy {
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private widgetApiSubscription: Subscription;
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// The capabilities we support
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protected supportsScreenshots = false;
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protected supportsStickers = false;
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protected supportsAlwaysOnScreen = false;
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public ngOnInit() {
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this.widgetApiSubscription = ScalarWidgetApi.requestReceived.subscribe(request => {
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if (request.action === "capabilities") {
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const capabilities = [];
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if (this.supportsScreenshots) capabilities.push("m.capability.screenshot");
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if (this.supportsStickers) capabilities.push("m.sticker");
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if (this.supportsAlwaysOnScreen) capabilities.push("m.always_on_screen");
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ScalarWidgetApi.replyCapabilities(request, capabilities);
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this.onCapabilitiesSent();
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}
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});
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}
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public ngOnDestroy() {
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if (this.widgetApiSubscription) this.widgetApiSubscription.unsubscribe();
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}
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protected onCapabilitiesSent(): void {
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if (this.supportsAlwaysOnScreen) ScalarWidgetApi.sendSetAlwaysOnScreen(true);
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}
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} |