Re-add extensions as top level dir

extensions/ohif-cornerstone-extension/src/ConnectedCornerstoneViewport.js

@@ -0,0 +1,77 @@
+import { connect } from 'react-redux';
+import CornerstoneViewport from 'react-cornerstone-viewport';
+import OHIF from 'ohif-core';
+import throttle from 'lodash.throttle';
+
+const {
+  setViewportActive,
+  setViewportSpecificData,
+  clearViewportSpecificData
+} = OHIF.redux.actions;
+
+const mapStateToProps = (state, ownProps) => {
+  const activeButton = state.tools.buttons.find(tool => tool.active === true);
+  let dataFromStore;
+
+  if (state.extensions && state.extensions.cornerstone) {
+    dataFromStore = state.extensions.cornerstone;
+  }
+
+  // If this is the active viewport, enable prefetching.
+  const { viewportIndex } = ownProps; //.viewportData;
+  const isActive = viewportIndex === state.viewports.activeViewportIndex;
+  const viewportSpecificData =
+    state.viewports.viewportSpecificData[viewportIndex] || {};
+
+  return {
+    layout: state.viewports.layout,
+    isActive,
+    activeTool: activeButton && activeButton.command,
+    ...dataFromStore,
+    enableStackPrefetch: isActive,
+    //stack: viewportSpecificData.stack,
+    cineToolData: viewportSpecificData.cine
+  };
+};
+
+const mapDispatchToProps = (dispatch, ownProps) => {
+  const { viewportIndex } = ownProps;
+
+  return {
+    setViewportActive: () => {
+      dispatch(setViewportActive(viewportIndex));
+    },
+
+    setViewportSpecificData: data => {
+      dispatch(setViewportSpecificData(viewportIndex, data));
+    },
+
+    clearViewportSpecificData: () => {
+      dispatch(clearViewportSpecificData(viewportIndex));
+    },
+
+    onMeasurementsChanged: (event, action) => {
+      const {
+        onAdded,
+        onRemoved,
+        onModified
+      } = OHIF.measurements.MeasurementHandlers;
+      const actions = {
+        added: onAdded,
+        removed: onRemoved,
+        modified: throttle(event => {
+          return onModified(event);
+        }, 300)
+      };
+
+      return actions[action](event);
+    }
+  };
+};
+
+const ConnectedCornerstoneViewport = connect(
+  mapStateToProps,
+  mapDispatchToProps
+)(CornerstoneViewport);
+
+export default ConnectedCornerstoneViewport;