58 lines
2.3 KiB
JavaScript
58 lines
2.3 KiB
JavaScript
import { ReactiveDict } from 'meteor/reactive-dict';
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import { Tracker } from 'meteor/tracker';
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import { OHIF } from 'meteor/ohif:core';
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// Create a studies loaded state dictionary to enable reactivity. Values: loading|loaded|failed
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OHIF.studies.loadingDict = new ReactiveDict();
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/**
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* Load the study metadata and store its information locally
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*
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* @param {String} studyInstanceUid The UID of the Study to be loaded
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* @returns {Promise} that will be resolved with the study metadata or rejected with an error
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*/
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OHIF.studies.loadStudy = studyInstanceUid => new Promise((resolve, reject) => {
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// Disable reactivity to get the current loading state
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let currentLoadingState;
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Tracker.nonreactive(() => {
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currentLoadingState = OHIF.studies.loadingDict.get(studyInstanceUid) || '';
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});
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// Set the loading state as the study is not yet loaded
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if (currentLoadingState !== 'loading') {
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OHIF.studies.loadingDict.set(studyInstanceUid, 'loading');
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}
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return OHIF.studies.retrieveStudyMetadata(studyInstanceUid).then(study => {
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// Add the display sets to the study if not present
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if (!study.displaySets) {
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const displaySets = OHIF.viewerbase.sortingManager.getDisplaySets(study);
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study.displaySets = displaySets;
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study.setDisplaySets(displaySets);
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study.forEachDisplaySet(displaySet => {
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OHIF.viewerbase.stackManager.makeAndAddStack(study, displaySet);
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});
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}
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// Double check to make sure this study wasn't already inserted into OHIF.viewer.Studies
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// so we don't cause duplicate entry errors
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const loaded = OHIF.viewer.Studies.findBy({ studyInstanceUid: study.studyInstanceUid });
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if (!loaded) {
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OHIF.viewer.Studies.insert(study);
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OHIF.viewer.StudyMetadataList.insert(study);
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}
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// Add the study to the loading listener to allow loading progress handling
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const studyLoadingListener = OHIF.viewerbase.StudyLoadingListener.getInstance();
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studyLoadingListener.addStudy(study);
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// Add the studyInstanceUid to the loaded state dictionary
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OHIF.studies.loadingDict.set(studyInstanceUid, 'loaded');
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resolve(study);
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}).catch((...args) => {
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OHIF.studies.loadingDict.set(studyInstanceUid, 'failed');
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reject(args);
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});
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});
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