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useScheduleAnimationDataProvider.tsx
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useScheduleAnimationDataProvider.tsx
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/*---------------------------------------------------------------------------------------------
* Copyright (c) Bentley Systems, Incorporated. All rights reserved.
* See LICENSE.md in the project root for license terms and full copyright notice.
*--------------------------------------------------------------------------------------------*/
/** @packageDocumentation
* @module Hooks
*/
import * as React from "react";
import { ScheduleAnimationTimelineDataProvider } from "../timeline/ScheduleAnimationProvider";
import type { ScreenViewport, Viewport } from "@itwin/core-frontend";
/** @internal */
// istanbul ignore next
function useSupportsScheduleScript(viewport: Viewport | undefined) {
const [supportsScheduleScript, setSupportsScheduleScript] = React.useState(
!!viewport?.view?.scheduleScript
);
React.useEffect(() => {
setSupportsScheduleScript(!!viewport?.view?.scheduleScript);
}, [viewport]);
React.useEffect(() => {
const handleViewChanged = (vp: Viewport): void => {
const hasScheduleScript = !!vp?.view?.scheduleScript;
if (hasScheduleScript !== supportsScheduleScript)
setSupportsScheduleScript(hasScheduleScript);
};
return viewport?.onChangeView.addListener(handleViewChanged);
}, [supportsScheduleScript, viewport]);
React.useEffect(() => {
const handleDisplayStyleChange = (vp: Viewport): void => {
const hasScheduleScript = !!vp?.view?.scheduleScript;
if (hasScheduleScript !== supportsScheduleScript)
setSupportsScheduleScript(hasScheduleScript);
};
return viewport?.onDisplayStyleChanged.addListener(
handleDisplayStyleChange
);
}, [viewport, supportsScheduleScript]);
return supportsScheduleScript;
}
/** Hook that returns either a ScheduleAnimationTimelineDataProvider or undefined based on if the supplied viewport contains schedule script.
* @public
**/
// istanbul ignore next
export function useScheduleAnimationDataProvider(
viewport: ScreenViewport | undefined
) {
const supportsScheduleScript = useSupportsScheduleScript(viewport);
const [
scheduleAnimationTimelineDataProvider,
setScheduleAnimationTimelineDataProvider,
] = React.useState<ScheduleAnimationTimelineDataProvider | undefined>();
const isMountedRef = React.useRef(false);
React.useEffect(() => {
isMountedRef.current = true;
return () => {
isMountedRef.current = false;
};
}, []);
React.useEffect(() => {
async function fetchNewDataProvider(vp: ScreenViewport) {
let newProvider: ScheduleAnimationTimelineDataProvider | undefined =
new ScheduleAnimationTimelineDataProvider(vp.view, vp);
if (newProvider?.supportsTimelineAnimation) {
const dataLoaded = await newProvider.loadTimelineData();
if (!dataLoaded) newProvider = undefined;
}
isMountedRef.current &&
setScheduleAnimationTimelineDataProvider(newProvider);
}
if (supportsScheduleScript && viewport) void fetchNewDataProvider(viewport);
else
isMountedRef.current &&
setScheduleAnimationTimelineDataProvider(undefined);
}, [supportsScheduleScript, viewport]);
return scheduleAnimationTimelineDataProvider;
}