Initial work on Nucleus parity merge

Packages/ohif-viewerbase/client/lib/MetadataViews.js

@@ -0,0 +1,64 @@
+// Default Configuration to handle Metadata from WADO or DIMSE,
+// currently retrieved through Meteor server
+let configuration = {
+	// These are examples, they need to actually check the properties of the Objects
+	getSeries: (study, seriesNumOrUid) => {
+		// Use Array to find the appropriate Series
+		return study.seriesList.find(series => series['seriesNumber'] === value);
+	},
+
+	getInstance: (series, instanceNumOrUid) => {
+		return series.instances.find(instance => instance['instanceNumber'] === instanceNumOrUid)
+	}
+
+	getInstanceTagRaw: (instance, tag) => {
+		// (this won't actually work yet)
+		return instance[tag];
+	}
+
+	getInstanceTagNum: (instance, tag) => {
+		// (this won't actually work yet)
+		return parseFloat(instance[tag]);
+	}
+};
+
+// Example Nucleus configuration
+// 
+configuration = {
+	getSeries: (study, seriesNumOrUid) => study.studyView.series(seriesNumOrInstanceUid),
+	getInstance: (series, instanceNumOrUid) => series.seriesView.instance(instanceNumOrUid),
+	getInstanceTagRaw: (instance, tag) => instance.instanceView.raw(tag),
+	getInstanceTagNum: (instance, tag) => instance.instanceView.num(tag),
+	getCustom(instance, custom) => instance.instanceView[custom]
+}
+
+class StudyMetadataView {
+	series(tag, value) {
+		// Retrieves Series by Series Number or SeriesInstanceUid
+		return configuration.getSeries(study, tag, value);
+	}
+}
+
+class SeriesMetadataView {
+	instances(tag, value) {
+		// Retrieves Instances by Instances Number or SOPInstanceUid
+		return configuration.getInstance(series, tag, value);
+	}
+}
+
+class InstanceMetadataView {
+	/* Retrieves raw value of tag from instance */
+	raw(tag) {
+		return configuration.getInstanceTagRaw(instance, tag);
+	}
+
+	/* Retrieves raw value of tag from instance */
+	num(tag) {
+		return configuration.getInstanceTagNum(instance, tag);
+	}
+
+	custom(custom) {
+		return configuration.getCustom(instance, custom)
+	}
+	// etc.. Date, DateTime, ...? Sequence...
+}