LT-275: Creating measure flow component common section

Packages/ohif-core/client/components/base/component.js

@@ -0,0 +1,49 @@
+import { OHIF } from 'meteor/ohif:core';
+
+/*
+ * Base component to template instances of all dynamic components
+ */
+class Component {
+
+    // Set up the component
+    constructor(templateInstance) {
+        // Store the component in the current view
+        templateInstance.view._component = this;
+
+        // Create an object to register section's content
+        templateInstance.sections = {};
+
+        // Store the template instance in the component
+        this.templateInstance = templateInstance;
+
+        // Store the component's registered sub-components
+        this.registeredItems = new Set();
+    }
+
+    // Self register the component in its first parent component
+    registerSelf() {
+        const parent = OHIF.blaze.getParentComponent(this.templateInstance.view);
+        if (parent) {
+            // Store this component's parent in a property
+            this.parent = parent;
+
+            // Add this component in its parent's registered items list
+            parent.registeredItems.add(this);
+        }
+    }
+
+    // Self unregister the component in its first parent component
+    unregisterSelf() {
+        const parent = OHIF.blaze.getParentComponent(this.templateInstance.view);
+        if (parent) {
+            // Remove the parent property from this component
+            delete this.parent;
+
+            // Remove this component from its parent's registered items list
+            parent.registeredItems.delete(this);
+        }
+    }
+
+}
+
+OHIF.Component = Component;