46 lines
1.3 KiB
TypeScript
46 lines
1.3 KiB
TypeScript
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import { log, Types } from '@ohif/core';
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import { EVENTS } from '@cornerstonejs/core';
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const { TimingEnum } = Types;
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const IMAGE_TIMING_KEYS = [
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TimingEnum.DISPLAY_SETS_TO_ALL_IMAGES,
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TimingEnum.DISPLAY_SETS_TO_FIRST_IMAGE,
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TimingEnum.STUDY_TO_FIRST_IMAGE,
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];
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const imageTiming = {
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viewportsWaiting: 0,
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};
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/**
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* Defines the initial view timing reporting.
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* This allows knowing how many viewports are waiting for initial views and
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* when the IMAGE_RENDERED gets sent out.
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* The first image rendered will fire the FIRST_IMAGE timeEnd logs, while
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* the last of the enabled viewport will fire the ALL_IMAGES timeEnd logs.
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*
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*/
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export default function initViewTiming({ element }) {
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if (!IMAGE_TIMING_KEYS.find(key => log.timingKeys[key])) {
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return;
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}
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imageTiming.viewportsWaiting += 1;
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element.addEventListener(EVENTS.IMAGE_RENDERED, imageRenderedListener);
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}
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function imageRenderedListener(evt) {
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if (evt.detail.viewportStatus === 'preRender') {
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return;
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}
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log.timeEnd(TimingEnum.DISPLAY_SETS_TO_FIRST_IMAGE);
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log.timeEnd(TimingEnum.STUDY_TO_FIRST_IMAGE);
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log.timeEnd(TimingEnum.SCRIPT_TO_VIEW);
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imageTiming.viewportsWaiting -= 1;
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evt.detail.element.removeEventListener(EVENTS.IMAGE_RENDERED, imageRenderedListener);
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if (!imageTiming.viewportsWaiting) {
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log.timeEnd(TimingEnum.DISPLAY_SETS_TO_ALL_IMAGES);
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}
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}
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