chore(release): publish [skip ci]

- @ohif/extension-cornerstone@2.3.0
 - @ohif/extension-vtk@1.2.16
 - @ohif/core@2.4.0
 - @ohif/viewer@3.6.0

.circleci/config.yml

@@ -328,6 +328,7 @@ workflows:
           working_directory: platform/viewer
           build: npx cross-env QUICK_BUILD=true yarn run build
           start: yarn run test:e2e:serve
+          spec: 'cypress/integration/common/**/*,cypress/integration/pwa/**/*'
           wait-on: 'http://localhost:3000'
           cache-key: 'yarn-packages-{{ checksum "yarn.lock" }}'
           no-workspace: true # Don't persist workspace
@@ -352,7 +353,7 @@ workflows:
           working_directory: platform/viewer
           build: npx cross-env QUICK_BUILD=true yarn run build:package
           start: yarn run test:e2e:serve
-          spec: 'cypress/integration/common/**/*'
+          spec: 'cypress/integration/common/**/*,cypress/integration/script-tag/**/*'
           wait-on: 'http://localhost:3000'
           cache-key: 'yarn-packages-{{ checksum "yarn.lock" }}'
           no-workspace: true # Don't persist workspace

.docker/Viewer-v2.x/entrypoint.sh

@@ -1,17 +1,31 @@
 #!/bin/bash
 
-# If CLIENT_ID is specified, use the google.js configuration with the modified ID
-if [ ! -z "$CLIENT_ID" ]
+if [ -n "$CLIENT_ID" ] || [ -n "$HEALTHCARE_API_ENDPOINT" ]
   then
-  	echo "Google Cloud Healthcare $CLIENT_ID has been provided: "
-  	echo $CLIENT_ID
-  	echo "Updating config..."
+    # If CLIENT_ID is specified, use the google.js configuration with the modified ID
+    if [ -n "$CLIENT_ID" ]
+      then
+  	    echo "Google Cloud Healthcare \$CLIENT_ID has been provided: "
+  	    echo "$CLIENT_ID"
+  	    echo "Updating config..."
 
-  	# - Use SED to replace the CLIENT_ID that is currently in google.js
-	sed -i -e "s/YOURCLIENTID.apps.googleusercontent.com/$CLIENT_ID/g" /usr/share/nginx/html/google.js
+  	    # - Use SED to replace the CLIENT_ID that is currently in google.js
+	      sed -i -e "s/YOURCLIENTID.apps.googleusercontent.com/$CLIENT_ID/g" /usr/share/nginx/html/google.js
+	  fi
 
-	# - Copy google.js to overwrite app-config.js
-	cp /usr/share/nginx/html/google.js /usr/share/nginx/html/app-config.js
+    # If HEALTHCARE_API_ENDPOINT is specified, use the google.js configuration with the modified endpoint
+    if [ -n "$HEALTHCARE_API_ENDPOINT" ]
+      then
+        echo "Google Cloud Healthcare \$HEALTHCARE_API_ENDPOINT has been provided: "
+        echo "$HEALTHCARE_API_ENDPOINT"
+        echo "Updating config..."
+
+        # - Use SED to replace the HEALTHCARE_API_ENDPOINT that is currently in google.js
+        sed -i -e "s+https://healthcare.googleapis.com/v1beta1+$HEALTHCARE_API_ENDPOINT+g" /usr/share/nginx/html/google.js
+    fi
+
+	  # - Copy google.js to overwrite app-config.js
+	  cp /usr/share/nginx/html/google.js /usr/share/nginx/html/app-config.js
 fi
 
 echo "Starting Nginx to serve the OHIF Viewer..."

.github/stale.yml

@@ -12,10 +12,11 @@ exemptLabels:
   - 'Task: CI/Tooling :robot:'
   - 'Task: Docs 📖'
   - 'Task: Docs :book:'
-  - 'Task: Refactor 🛠'
+  - 'Task: Refactor :hammer_and_wrench:'
   - 'Task: Tests :microscope:'
   - 'PR: Awaiting Review 👀'
   - 'Triage :white_flag:'
+  - 'Extension: Discussion'
   - 'Announcement 🎉'
 # Label to use when marking an issue as stale
 staleLabel: 'Stale :baguette_bread:'

extensions/cornerstone/CHANGELOG.md

@@ -3,6 +3,25 @@
 All notable changes to this project will be documented in this file.
 See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
 
+# [2.3.0](https://github.com/OHIF/Viewers/compare/@ohif/extension-cornerstone@2.2.2...@ohif/extension-cornerstone@2.3.0) (2020-02-10)
+
+
+### Features
+
+* 🎸 MeasurementService ([#1314](https://github.com/OHIF/Viewers/issues/1314)) ([0c37a40](https://github.com/OHIF/Viewers/commit/0c37a406d963569af8c3be24c697dafd42712dfc))
+
+
+
+
+
+## [2.2.2](https://github.com/OHIF/Viewers/compare/@ohif/extension-cornerstone@2.2.1...@ohif/extension-cornerstone@2.2.2) (2020-01-28)
+
+**Note:** Version bump only for package @ohif/extension-cornerstone
+
+
+
+
+
 ## [2.2.1](https://github.com/OHIF/Viewers/compare/@ohif/extension-cornerstone@2.2.0...@ohif/extension-cornerstone@2.2.1) (2019-12-20)
 
 

extensions/cornerstone/babel.config.js

@@ -0,0 +1 @@
+module.exports = require("../../babel.config.js");

extensions/cornerstone/jest.config.js

@@ -0,0 +1,13 @@
+const base = require('../../jest.config.base.js');
+const pkg = require('./package');
+
+module.exports = {
+  ...base,
+  name: pkg.name,
+  displayName: pkg.name,
+  // rootDir: "../.."
+  // testMatch: [
+  //   //`<rootDir>/platform/${pack.name}/**/*.spec.js`
+  //   "<rootDir>/platform/viewer/**/*.test.js"
+  // ]
+};

extensions/cornerstone/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@ohif/extension-cornerstone",
-  "version": "2.2.1",
+  "version": "2.3.0",
   "description": "OHIF extension for Cornerstone",
   "author": "OHIF",
   "license": "MIT",
@@ -25,14 +25,16 @@
     "build": "cross-env NODE_ENV=production webpack --config .webpack/webpack.prod.js",
     "build:package": "yarn run build",
     "prepublishOnly": "yarn run build",
-    "start": "yarn run dev"
+    "start": "yarn run dev",
+    "test:unit": "jest --watchAll",
+    "test:unit:ci": "jest --ci --runInBand --collectCoverage"
   },
   "peerDependencies": {
     "@ohif/core": "^0.50.0",
     "@ohif/ui": "^0.50.0",
     "cornerstone-core": "^2.2.8",
     "cornerstone-math": "^0.1.8",
-    "cornerstone-tools": "^4.9.0",
+    "cornerstone-tools": "^4.12.0",
     "cornerstone-wado-image-loader": "^3.0.0",
     "dcmjs": "^0.8.2",
     "dicom-parser": "^1.8.3",

extensions/cornerstone/src/init.js

@@ -5,6 +5,7 @@ import csTools from 'cornerstone-tools';
 import merge from 'lodash.merge';
 import queryString from 'query-string';
 import initCornerstoneTools from './initCornerstoneTools.js';
+import measurementServiceMappingsFactory from './utils/measurementServiceMappings/measurementServiceMappingsFactory';
 
 function fallbackMetaDataProvider(type, imageId) {
   if (!imageId.includes('wado?requestType=WADO')) {
@@ -17,7 +18,7 @@ function fallbackMetaDataProvider(type, imageId) {
   const wadoRoot = window.store.getState().servers.servers[0].wadoRoot;
   const wadoRsImageId = `wadors:${wadoRoot}/studies/${qs.studyUID}/series/${
     qs.seriesUID
-  }/instances/${qs.objectUID}/frames/${qs.frame || 1}`;
+    }/instances/${qs.objectUID}/frames/${qs.frame || 1}`;
 
   return cornerstone.metaData.get(type, wadoRsImageId);
 }
@@ -32,9 +33,9 @@ cornerstone.metaData.addProvider(fallbackMetaDataProvider, -1);
  * @param {Object|Array} configuration.csToolsConfig
  */
 export default function init({ servicesManager, configuration }) {
-  const callInputDialog = (data, event, callback) => {
-    const { UIDialogService } = servicesManager.services;
+  const { UIDialogService, MeasurementService } = servicesManager.services;
 
+  const callInputDialog = (data, event, callback) => {
     if (UIDialogService) {
       let dialogId = UIDialogService.create({
         centralize: true,
@@ -98,6 +99,7 @@ export default function init({ servicesManager, configuration }) {
       csTools.MagnifyTool,
       csTools.StackScrollTool,
       csTools.StackScrollMouseWheelTool,
+      csTools.OverlayTool,
     ],
   };
 
@@ -106,6 +108,9 @@ export default function init({ servicesManager, configuration }) {
     tools.push(...toolsGroupedByType[toolsGroup])
   );
 
+  /* Measurement Service */
+  _connectToolsToMeasurementService(MeasurementService);
+
   /* Add extension tools configuration here. */
   const internalToolsConfig = {
     ArrowAnnotate: {
@@ -179,4 +184,113 @@ export default function init({ servicesManager, configuration }) {
   csTools.setToolActive('StackScrollMouseWheel', {}); // TODO: Empty options should not be required
   csTools.setToolActive('PanMultiTouch', { pointers: 2 }); // TODO: Better error if no options
   csTools.setToolActive('ZoomTouchPinch', {});
+  csTools.setToolEnabled('Overlay', {});
 }
+
+const _initMeasurementService = measurementService => {
+  /* Initialization */
+  const { toAnnotation, toMeasurement } = measurementServiceMappingsFactory(measurementService);
+  const csToolsVer4MeasurementSource = measurementService.createSource(
+    'CornerstoneTools',
+    '4'
+  );
+
+  /* Matching Criterias */
+  const matchingCriteria = {
+    valueType: measurementService.VALUE_TYPES.POLYLINE,
+    points: 2,
+  };
+
+  /* Mappings */
+  measurementService.addMapping(
+    csToolsVer4MeasurementSource,
+    'Length',
+    matchingCriteria,
+    toAnnotation,
+    toMeasurement
+  );
+
+  return csToolsVer4MeasurementSource;
+};
+
+const _connectToolsToMeasurementService = measurementService => {
+  const csToolsVer4MeasurementSource = _initMeasurementService(measurementService);
+  const {
+    id: sourceId,
+    addOrUpdate,
+    getAnnotation,
+  } = csToolsVer4MeasurementSource;
+
+  /* Measurement Service Events */
+  cornerstone.events.addEventListener(
+    cornerstone.EVENTS.ELEMENT_ENABLED,
+    event => {
+      const {
+        MEASUREMENT_ADDED,
+        MEASUREMENT_UPDATED,
+      } = measurementService.EVENTS;
+
+      measurementService.subscribe(
+        MEASUREMENT_ADDED,
+        ({ source, measurement }) => {
+          if (![sourceId].includes(source.id)) {
+            const annotation = getAnnotation('Length', measurement.id);
+
+            console.log(
+              'Measurement Service [Cornerstone]: Measurement added',
+              measurement
+            );
+            console.log('Mapped annotation:', annotation);
+          }
+        });
+
+      measurementService.subscribe(
+        MEASUREMENT_UPDATED,
+        ({ source, measurement }) => {
+          if (![sourceId].includes(source.id)) {
+            const annotation = getAnnotation('Length', measurement.id);
+
+            console.log(
+              'Measurement Service [Cornerstone]: Measurement updated',
+              measurement
+            );
+            console.log('Mapped annotation:', annotation);
+          }
+        }
+      );
+
+      const addOrUpdateMeasurement = csToolsAnnotation => {
+        try {
+          const { toolName, toolType, measurementData } = csToolsAnnotation;
+          const csTool = toolName || measurementData.toolType || toolType;
+          csToolsAnnotation.id = measurementData._measurementServiceId;
+          const measurementServiceId = addOrUpdate(csTool, csToolsAnnotation);
+
+          if (!measurementData._measurementServiceId) {
+            addMeasurementServiceId(measurementServiceId, csToolsAnnotation);
+          }
+        } catch (error) {
+          console.warn('Failed to add or update measurement:', error);
+        }
+      };
+
+      const addMeasurementServiceId = (id, csToolsAnnotation) => {
+        const { measurementData } = csToolsAnnotation;
+        Object.assign(measurementData, { _measurementServiceId: id });
+      };
+
+      [
+        csTools.EVENTS.MEASUREMENT_ADDED,
+        csTools.EVENTS.MEASUREMENT_MODIFIED,
+      ].forEach(csToolsEvtName => {
+        event.detail.element.addEventListener(
+          csToolsEvtName,
+          ({ detail: csToolsAnnotation }) => {
+            console.log(`Cornerstone Element Event: ${csToolsEvtName}`);
+            addOrUpdateMeasurement(csToolsAnnotation);
+          }
+        );
+      });
+    }
+  );
+};

extensions/cornerstone/src/utils/measurementServiceMappings/measurementServiceMappingsFactory.js

@@ -0,0 +1,133 @@
+import cornerstone from 'cornerstone-core';
+
+const SUPPORTED_TOOLS = ['Length', 'EllipticalRoi', 'RectangleRoi', 'ArrowAnnotate'];
+
+const measurementServiceMappingsFactory = measurementService => {
+  /**
+   * Maps measurement service format object to cornerstone annotation object.
+   *
+   * @param {Measurement} measurement The measurement instance
+   * @param {string} definition The source definition
+   * @return {Object} Cornerstone annotation data
+   */
+  const toAnnotation = (measurement, definition) => {
+    const {
+      id,
+      label,
+      description,
+      points,
+      unit,
+      sopInstanceUID,
+      frameOfReferenceUID,
+      referenceSeriesUID,
+    } = measurement;
+
+    return {
+      toolName: definition,
+      measurementData: {
+        sopInstanceUid: sopInstanceUID,
+        frameOfReferenceUid: frameOfReferenceUID,
+        seriesInstanceUid: referenceSeriesUID,
+        unit,
+        text: label,
+        description,
+        handles: _getHandlesFromPoints(points),
+        _measurementServiceId: id,
+      },
+    };
+  };
+
+  /**
+   * Maps cornerstone annotation event data to measurement service format.
+   *
+   * @param {Object} cornerstone Cornerstone event data
+   * @return {Measurement} Measurement instance
+   */
+  const toMeasurement = csToolsAnnotation => {
+    const { element, measurementData } = csToolsAnnotation;
+    const tool =
+      csToolsAnnotation.toolType ||
+      csToolsAnnotation.toolName ||
+      measurementData.toolType;
+
+    const validToolType = toolName => SUPPORTED_TOOLS.includes(toolName);
+
+    if (!validToolType(tool)) {
+      throw new Error('Tool not supported');
+    }
+
+    const {
+      sopInstanceUid,
+      frameOfReferenceUid,
+      seriesInstanceUid,
+    } = _getAttributes(element);
+
+    const points = [];
+    points.push(measurementData.handles);
+
+    return {
+      id: measurementData._measurementServiceId,
+      sopInstanceUID: sopInstanceUid,
+      frameOfReferenceUID: frameOfReferenceUid,
+      referenceSeriesUID: seriesInstanceUid,
+      label: measurementData.text,
+      description: measurementData.description,
+      unit: measurementData.unit,
+      area: measurementData.cachedStats && measurementData.cachedStats.area, /* TODO: Add concept names instead (descriptor) */
+      type: _getValueTypeFromToolType(tool),
+      points: _getPointsFromHandles(measurementData.handles),
+    };
+  };
+
+  const _getAttributes = element => {
+    const enabledElement = cornerstone.getEnabledElement(element);
+    const imageId = enabledElement.image.imageId;
+    const sopInstance = cornerstone.metaData.get('instance', imageId);
+    const sopInstanceUid = sopInstance.sopInstanceUid;
+    const frameOfReferenceUid = sopInstance.frameOfReferenceUID;
+    const series = cornerstone.metaData.get('series', imageId);
+    const seriesInstanceUid = series.seriesInstanceUid;
+
+    return { sopInstanceUid, frameOfReferenceUid, seriesInstanceUid };
+  };
+
+  const _getValueTypeFromToolType = toolType => {
+    const { POLYLINE, ELLIPSE, POINT } = measurementService.VALUE_TYPES;
+
+    /* TODO: Relocate static value types */
+    const TOOL_TYPE_TO_VALUE_TYPE = {
+      Length: POLYLINE,
+      EllipticalRoi: ELLIPSE,
+      RectangleRoi: POLYLINE,
+      ArrowAnnotate: POINT,
+    };
+
+    return TOOL_TYPE_TO_VALUE_TYPE[toolType];
+  };
+
+  const _getPointsFromHandles = handles => {
+    let points = [];
+    Object.keys(handles).map(handle => {
+      if (['start', 'end'].includes(handle)) {
+        let point = {};
+        if (handles[handle].x) point.x = handles[handle].x;
+        if (handles[handle].y) point.y = handles[handle].y;
+        points.push(point);
+      }
+    });
+    return points;
+  };
+
+  const _getHandlesFromPoints = points => {
+    return points
+      .map((p, i) => (i % 10 === 0 ? { start: p } : { end: p }))
+      .reduce((obj, item) => Object.assign(obj, { ...item }), {});
+  };
+
+  return {
+    toAnnotation,
+    toMeasurement,
+  };
+};
+
+export default measurementServiceMappingsFactory;

extensions/cornerstone/src/utils/measurementServiceMappings/measurementServiceMappingsFactory.test.js

@@ -0,0 +1,80 @@
+import measurementServiceMappingsFactory from './measurementServiceMappingsFactory';
+
+jest.mock('cornerstone-core', () => ({
+  ...jest.requireActual('cornerstone-core'),
+  getEnabledElement: () => ({
+    image: { imageId: 123 },
+  }),
+  metaData: {
+    ...jest.requireActual('cornerstone-core').metaData,
+    get: () => ({
+      sopInstanceUid: "123",
+      frameOfReferenceUID: "123",
+      seriesInstanceUid: "123",
+    }),
+  },
+}));
+
+describe('measurementServiceMappings.js', () => {
+  let mappings;
+  let handles;
+  let points;
+  let csToolsAnnotation;
+  let measurement;
+  let measurementServiceMock;
+  let definition = 'Length';
+
+  beforeEach(() => {
+    measurementServiceMock = {
+      VALUE_TYPES: {
+        POLYLINE: 'value_type::polyline',
+        POINT: 'value_type::point',
+        ELLIPSE: 'value_type::ellipse',
+        MULTIPOINT: 'value_type::multipoint',
+        CIRCLE: 'value_type::circle',
+      },
+    };
+    mappings = measurementServiceMappingsFactory(measurementServiceMock);
+    handles = { start: { x: 1, y: 2 }, end: { x: 1, y: 2 } };
+    points = [{ x: 1, y: 2 }, { x: 1, y: 2 }];
+    csToolsAnnotation = {
+      toolName: definition,
+      measurementData: {
+        _measurementServiceId: 1,
+        sopInstanceUid: '123',
+        frameOfReferenceUid: '123',
+        seriesInstanceUid: '123',
+        handles,
+        text: 'Test',
+        description: 'Test',
+        unit: 'mm',
+      },
+    };
+    measurement = {
+      id: 1,
+      sopInstanceUID: '123',
+      frameOfReferenceUID: '123',
+      referenceSeriesUID: '123',
+      label: 'Test',
+      description: 'Test',
+      unit: 'mm',
+      type: measurementServiceMock.VALUE_TYPES.POLYLINE,
+      points: points,
+    };
+    jest.clearAllMocks();
+  });
+
+  describe('toAnnotation()', () => {
+    it('map measurement service format to annotation', async () => {
+      const mappedMeasurement = await mappings.toAnnotation(measurement, definition);
+      expect(mappedMeasurement).toEqual(csToolsAnnotation);
+    });
+  });
+
+  describe('toMeasurement()', () => {
+    it('map annotation to measurement service format', async () => {
+      const mappedAnnotation = await mappings.toMeasurement(csToolsAnnotation);
+      expect(mappedAnnotation).toEqual(measurement);
+    });
+  });
+});

extensions/lesion-tracker/.webpack/webpack.dev.js

@@ -0,0 +1,8 @@
+const path = require('path');
+const webpackCommon = require('./../../../.webpack/webpack.commonjs.js');
+const SRC_DIR = path.join(__dirname, '../src');
+const DIST_DIR = path.join(__dirname, '../dist');
+
+module.exports = (env, argv) => {
+  return webpackCommon(env, argv, { SRC_DIR, DIST_DIR });
+};

extensions/lesion-tracker/.webpack/webpack.prod.js

@@ -0,0 +1,38 @@
+const merge = require('webpack-merge');
+const path = require('path');
+const webpackCommon = require('./../../../.webpack/webpack.commonjs.js');
+const pkg = require('./../package.json');
+
+const ROOT_DIR = path.join(__dirname, './..');
+const SRC_DIR = path.join(__dirname, '../src');
+const DIST_DIR = path.join(__dirname, '../dist');
+
+module.exports = (env, argv) => {
+  const commonConfig = webpackCommon(env, argv, { SRC_DIR, DIST_DIR });
+
+  return merge(commonConfig, {
+    devtool: 'source-map',
+    stats: {
+      colors: true,
+      hash: true,
+      timings: true,
+      assets: true,
+      chunks: false,
+      chunkModules: false,
+      modules: false,
+      children: false,
+      warnings: true,
+    },
+    optimization: {
+      minimize: true,
+      sideEffects: true,
+    },
+    output: {
+      path: ROOT_DIR,
+      library: 'OHIFExtLesionTracker',
+      libraryTarget: 'umd',
+      libraryExport: 'default',
+      filename: pkg.main,
+    },
+  });
+};

extensions/lesion-tracker/CHANGELOG.md

@@ -0,0 +1,11 @@
+# Change Log
+
+All notable changes to this project will be documented in this file.
+See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
+
+# 0.1.0 (2020-02-06)
+
+
+### Features
+
+* lesion-tracker extension ([#1420](https://github.com/OHIF/Viewers/issues/1420)) ([73e4409](https://github.com/OHIF/Viewers/commit/73e440968ce4699d081a9c9f2d21dd68095b3056))

extensions/lesion-tracker/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2018 Open Health Imaging Foundation
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

extensions/lesion-tracker/README.md

@@ -0,0 +1,38 @@
+# @ohif/extension-lesion-tracker
+
+This project is an OHIF extension that can be used with the Core OHIF Platform,
+either at runtime, or as an ES6 dependency, to create a medical image viewing
+application similar to that of the [legacy Lesion
+Tracker][legacy-lesion-tracker] viewer.
+
+## About
+
+...
+
+## Scope
+
+...
+
+### Configuration
+
+...
+
+### Extensions
+
+...
+
+## Build & Deploy
+
+...
+
+## Funding/Support
+
+...
+
+<!--
+  LINKS
+  -->
+
+<!-- prettier-ignore-start -->
+[legacy-lesion-tracker]: http://lesiontracker.ohif.org/studylist
+<!-- prettier-ignore-end -->

extensions/lesion-tracker/package.json

@@ -0,0 +1,40 @@
+{
+  "name": "@ohif/extension-lesion-tracker",
+  "version": "0.1.0",
+  "description": "OHIF extension for Lesion Tracker",
+  "author": "OHIF",
+  "license": "MIT",
+  "repository": "OHIF/Viewers",
+  "main": "dist/index.umd.js",
+  "module": "src/index.js",
+  "publishConfig": {
+    "access": "public"
+  },
+  "engines": {
+    "node": ">=10",
+    "npm": ">=6",
+    "yarn": ">=1.16.0"
+  },
+  "files": [
+    "dist",
+    "README.md"
+  ],
+  "scripts": {
+    "dev": "cross-env NODE_ENV=development webpack --config .webpack/webpack.dev.js --watch --debug --output-pathinfo",
+    "dev:lesion-tracker": "yarn run dev",
+    "build": "cross-env NODE_ENV=production webpack --config .webpack/webpack.prod.js",
+    "build:package": "yarn run build",
+    "prepublishOnly": "yarn run build",
+    "start": "yarn run dev"
+  },
+  "peerDependencies": {
+    "@ohif/core": "^0.50.0",
+    "prop-types": "^15.6.2",
+    "react": "^16.8.6",
+    "react-dom": "^16.8.6"
+  },
+  "dependencies": {
+    "@babel/runtime": "^7.5.5",
+    "classnames": "^2.2.6"
+  }
+}

extensions/lesion-tracker/src/index.js

@@ -0,0 +1,101 @@
+// SEE: Async imports (code-splitting)
+// import asyncComponent from './asyncComponent.js';
+// import OHIFDicomPDFSopClassHandler from './OHIFDicomPDFSopClassHandler.js';
+
+// const ConnectedOHIFDicomPDFViewer = asyncComponent(() =>
+//   import(
+//     /* webpackChunkName: "ConnectedOHIFDicomPDFViewer" */ './ConnectedOHIFDicomPDFViewer'
+//   )
+// );
+
+export default {
+  /**
+   * Only required property. Should be a unique value across all extensions.
+   */
+  id: 'lesion-tracker',
+
+  /**
+   * @param {object} params
+   * @param {ServicesManager} params.servicesManager
+   * @param {CommandsManager} params.commandsManager
+   */
+  getPanelModule({ servicesManager, commandsManager }) {
+    return undefined;
+    // {
+    // TODO:
+    // - Right, alternative StudyBrowser
+    // - Left, alternative Measurements Table
+    // menuOptions: [
+    //   {
+    //     // A suggested icon
+    //     // Available icons determined by consuming app
+    //     icon: 'list',
+    //     // A suggested label
+    //     label: 'Magic',
+    //     // 'right' or 'left'
+    //     from: 'right',
+    //     // The target component to toggle open/close
+    //     target: 'target-component-id',
+    //     // Overrides `defaultContext`, if specified
+    //     context: ['ACTIVE_VIEWPORT:MAGIC'],
+    //   },
+    // ],
+    // components: [
+    //   {
+    //     id: 'target-component-id',
+    //     component: MyComponent,
+    //   },
+    // ],
+    // defaultContext: ['ROUTE:VIEWER'],
+    // };
+  },
+
+  /**
+   * @param {object} params
+   * @param {ServicesManager} params.servicesManager
+   * @param {CommandsManager} params.commandsManager
+   * @returns Object
+   */
+  getToolbarModule({ servicesManager, commandsManager }) {
+    // TODO: Zoom, Levels, Pan, More (see lesiontracker.ohif.org)
+    // These may be driven through configuration of `cornerstone` extension instead of defined here
+    return {
+      definitions: [
+        {
+          id: 'say-hell-world',
+          label: '🎉 HELLO WORLD 🎉',
+          icon: 'exclamation-triangle',
+          type: 'command',
+          commandName: 'sayHelloWorld',
+        },
+      ],
+      defaultContext: 'VIEWER',
+    };
+  },
+
+  /**
+   * @param {object} params
+   * @param {ServicesManager} params.servicesManager
+   * @param {CommandsManager} params.commandsManager
+   * @returns Object
+   */
+  getCommandsModule({ servicesManager }) {
+    const { UINotificationService } = servicesManager.services;
+    return {
+      definitions: {
+        sayHelloWorld: {
+          commandFn: function() {
+            console.log(UINotificationService);
+            UINotificationService.show({
+              title: 'What does a nosey pepper do?',
+              message: 'Gets jalapeno business!',
+            });
+          },
+          storeContexts: [],
+          options: {},
+        },
+      },
+      defaultContext: ['VIEWER'],
+    };
+  },
+};

extensions/vtk/CHANGELOG.md

@@ -3,6 +3,97 @@
 All notable changes to this project will be documented in this file.
 See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
 
+## [1.2.16](https://github.com/OHIF/Viewers/compare/@ohif/extension-vtk@1.2.15...@ohif/extension-vtk@1.2.16) (2020-02-10)
+
+**Note:** Version bump only for package @ohif/extension-vtk
+
+
+
+
+
+## [1.2.15](https://github.com/OHIF/Viewers/compare/@ohif/extension-vtk@1.2.14...@ohif/extension-vtk@1.2.15) (2020-02-07)
+
+**Note:** Version bump only for package @ohif/extension-vtk
+
+
+
+
+
+## [1.2.14](https://github.com/OHIF/Viewers/compare/@ohif/extension-vtk@1.2.13...@ohif/extension-vtk@1.2.14) (2020-02-06)
+
+**Note:** Version bump only for package @ohif/extension-vtk
+
+
+
+
+
+## [1.2.13](https://github.com/OHIF/Viewers/compare/@ohif/extension-vtk@1.2.12...@ohif/extension-vtk@1.2.13) (2020-01-30)
+
+
+### Bug Fixes
+
+* Set VTK viewport as active by interaction  ([#1139](https://github.com/OHIF/Viewers/issues/1139)) ([686d12d](https://github.com/OHIF/Viewers/commit/686d12da5c9d3d435b1e326c2a5caee36e2ed27c))
+
+
+
+
+
+## [1.2.12](https://github.com/OHIF/Viewers/compare/@ohif/extension-vtk@1.2.11...@ohif/extension-vtk@1.2.12) (2020-01-30)
+
+**Note:** Version bump only for package @ohif/extension-vtk
+
+
+
+
+
+## [1.2.11](https://github.com/OHIF/Viewers/compare/@ohif/extension-vtk@1.2.10...@ohif/extension-vtk@1.2.11) (2020-01-28)
+
+**Note:** Version bump only for package @ohif/extension-vtk
+
+
+
+
+
+## [1.2.10](https://github.com/OHIF/Viewers/compare/@ohif/extension-vtk@1.2.9...@ohif/extension-vtk@1.2.10) (2020-01-28)
+
+**Note:** Version bump only for package @ohif/extension-vtk
+
+
+
+
+
+## [1.2.9](https://github.com/OHIF/Viewers/compare/@ohif/extension-vtk@1.2.8...@ohif/extension-vtk@1.2.9) (2020-01-27)
+
+**Note:** Version bump only for package @ohif/extension-vtk
+
+
+
+
+
+## [1.2.8](https://github.com/OHIF/Viewers/compare/@ohif/extension-vtk@1.2.7...@ohif/extension-vtk@1.2.8) (2020-01-24)
+
+**Note:** Version bump only for package @ohif/extension-vtk
+
+
+
+
+
+## [1.2.7](https://github.com/OHIF/Viewers/compare/@ohif/extension-vtk@1.2.6...@ohif/extension-vtk@1.2.7) (2020-01-08)
+
+**Note:** Version bump only for package @ohif/extension-vtk
+
+
+
+
+
+## [1.2.6](https://github.com/OHIF/Viewers/compare/@ohif/extension-vtk@1.2.5...@ohif/extension-vtk@1.2.6) (2020-01-07)
+
+**Note:** Version bump only for package @ohif/extension-vtk
+
+
+
+
+
 ## [1.2.5](https://github.com/OHIF/Viewers/compare/@ohif/extension-vtk@1.2.4...@ohif/extension-vtk@1.2.5) (2020-01-06)
 
 **Note:** Version bump only for package @ohif/extension-vtk

extensions/vtk/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@ohif/extension-vtk",
-  "version": "1.2.5",
+  "version": "1.2.16",
   "description": "OHIF extension for VTK.js",
   "author": "OHIF",
   "license": "MIT",
@@ -49,12 +49,12 @@
   "dependencies": {
     "@babel/runtime": "^7.5.5",
     "lodash.throttle": "^4.1.1",
-    "react-vtkjs-viewport": "^0.3.9"
+    "react-vtkjs-viewport": "^0.8.3"
   },
   "devDependencies": {
-    "@ohif/core": "^2.3.2",
-    "@ohif/ui": "^1.1.7",
-    "cornerstone-tools": "^4.9.0",
+    "@ohif/core": "^2.4.0",
+    "@ohif/ui": "^1.1.9",
+    "cornerstone-tools": "^4.12.0",
     "cornerstone-wado-image-loader": "^3.0.0",
     "dicom-parser": "^1.8.3",
     "gh-pages": "^2.0.1",

extensions/vtk/src/ConnectedVTKViewport.js

@@ -1,6 +1,6 @@
 import OHIF from '@ohif/core';
-import { View2D } from 'react-vtkjs-viewport';
 import { connect } from 'react-redux';
+import VTKViewport from './VTKViewport';
 
 const { setViewportActive, setViewportSpecificData } = OHIF.redux.actions;
 
@@ -18,6 +18,7 @@ const mapStateToProps = (state, ownProps) => {
   const pluginDetails = viewportLayout.vtk || {};
 
   return {
+    activeViewportIndex: state.viewports.activeViewportIndex,
     layout: state.viewports.layout,
     isActive,
     ...pluginDetails,
@@ -75,6 +76,6 @@ const ConnectedVTKViewport = connect(
   mapStateToProps,
   mapDispatchToProps,
   mergeProps
-)(View2D);
+)(VTKViewport);
 
 export default ConnectedVTKViewport;

extensions/vtk/src/OHIFVTKViewport.js

@@ -77,6 +77,11 @@ class OHIFVTKViewport extends Component {
     }),
     viewportIndex: PropTypes.number,
     children: PropTypes.node,
+    onScroll: PropTypes.func,
+  };
+
+  static defaultProps = {
+    onScroll: () => {},
   };
 
   static id = 'OHIFVTKViewport';
@@ -386,6 +391,7 @@ class OHIFVTKViewport extends Component {
                 this.state.paintFilterBackgroundImageData
               }
               viewportIndex={this.props.viewportIndex}
+              onScroll={this.props.onScroll}
             />
           )}
         </div>

extensions/vtk/src/VTKViewport.css

@@ -0,0 +1,3 @@
+.vtk-viewport-handler svg {
+  pointer-events: none;
+}

extensions/vtk/src/VTKViewport.js

@@ -0,0 +1,58 @@
+import React, { useEffect, useCallback } from 'react';
+import { View2D } from 'react-vtkjs-viewport';
+import PropTypes from 'prop-types';
+
+import './VTKViewport.css';
+
+const VTKViewport = props => {
+  const style = { width: '100%', height: '100%', position: 'relative' };
+
+  const setViewportActiveHandler = useCallback(() => {
+    const { setViewportActive, viewportIndex, activeViewportIndex } = props;
+
+    if (viewportIndex !== activeViewportIndex) {
+      // set in Connected
+      setViewportActive();
+    }
+  });
+
+  useEffect(() => {
+    const handleScrollEvent = evt => {
+      const vtkViewportApiReference = props.onScroll(props.viewportIndex) || {};
+      const viewportUid = vtkViewportApiReference.uid;
+      const viewportWasScrolled = viewportUid === evt.detail.uid;
+
+      if (viewportWasScrolled) {
+        setViewportActiveHandler();
+      }
+    };
+
+    window.addEventListener('vtkscrollevent', handleScrollEvent);
+    return () =>
+      window.removeEventListener('vtkscrollevent', handleScrollEvent);
+  }, [props, props.onScroll, props.viewportIndex, setViewportActiveHandler]);
+
+  return (
+    <div
+      className="vtk-viewport-handler"
+      style={style}
+      onClick={setViewportActiveHandler}
+    >
+      <View2D {...props} />
+    </div>
+  );
+};
+
+VTKViewport.propTypes = {
+  setViewportActive: PropTypes.func.isRequired,
+  viewportIndex: PropTypes.number.isRequired,
+  activeViewportIndex: PropTypes.number.isRequired,
+  /* Receives viewportIndex */
+  onScroll: PropTypes.func,
+};
+
+VTKViewport.defaultProps = {
+  onScroll: () => {},
+};
+
+export default VTKViewport;

extensions/vtk/src/commandsModule.js

@@ -103,6 +103,9 @@ const commandsModule = ({ commandsManager }) => {
   }
 
   const actions = {
+    getVtkApis: ({ index }) => {
+      return apis[index];
+    },
     axial: async ({ viewports }) => {
       const api = await _getActiveViewportVTKApi(viewports);
 
@@ -234,7 +237,7 @@ const commandsModule = ({ commandsManager }) => {
           },
         },
         {
-          // Sagital
+          // Sagittal
           orientation: {
             sliceNormal: [1, 0, 0],
             viewUp: [0, 0, 1],
@@ -266,11 +269,12 @@ const commandsModule = ({ commandsManager }) => {
           'crosshairsWidget'
         );
 
+        const uid = api.uid;
         const istyle = vtkInteractorStyleMPRCrosshairs.newInstance();
 
         api.setInteractorStyle({
           istyle,
-          configuration: { apis, apiIndex },
+          configuration: { apis, apiIndex, uid },
         });
       });
     },
@@ -296,55 +300,45 @@ const commandsModule = ({ commandsManager }) => {
     },
     enableRotateTool: {
       commandFn: actions.enableRotateTool,
-      storeContexts: [],
       options: {},
     },
     enableCrosshairsTool: {
       commandFn: actions.enableCrosshairsTool,
-      storeContexts: [],
       options: {},
     },
     enableLevelTool: {
       commandFn: actions.enableLevelTool,
-      storeContexts: [],
       options: {},
     },
     setBlendModeToComposite: {
       commandFn: actions.setBlendModeToComposite,
-      storeContexts: [],
       options: { blendMode: BlendMode.COMPOSITE_BLEND },
     },
     setBlendModeToMaximumIntensity: {
       commandFn: actions.setBlendModeToMaximumIntensity,
-      storeContexts: [],
       options: { blendMode: BlendMode.MAXIMUM_INTENSITY_BLEND },
     },
     setBlendModeToMinimumIntensity: {
       commandFn: actions.setBlendMode,
-      storeContexts: [],
       options: { blendMode: BlendMode.MINIMUM_INTENSITY_BLEND },
     },
     setBlendModeToAverageIntensity: {
       commandFn: actions.setBlendMode,
-      storeContexts: [],
       options: { blendMode: BlendMode.AVERAGE_INTENSITY_BLEND },
     },
     setSlabThickness: {
       // TODO: How do we pass in a function argument?
       commandFn: actions.setSlabThickness,
-      storeContexts: [],
       options: {},
     },
     increaseSlabThickness: {
       commandFn: actions.changeSlabThickness,
-      storeContexts: [],
       options: {
         change: 3,
       },
     },
     decreaseSlabThickness: {
       commandFn: actions.changeSlabThickness,
-      storeContexts: [],
       options: {
         change: -3,
       },
@@ -355,6 +349,10 @@ const commandsModule = ({ commandsManager }) => {
       options: {},
       context: 'VIEWER',
     },
+    getVtkApiForViewportIndex: {
+      commandFn: actions.getVtkApis,
+      context: 'VIEWER',
+    },
   };
 
   return {

extensions/vtk/src/index.js

@@ -1,6 +1,7 @@
 import asyncComponent from './asyncComponent.js';
 import commandsModule from './commandsModule.js';
 import toolbarModule from './toolbarModule.js';
+import withCommandsManager from './withCommandsManager.js';
 // This feels weird
 // import loadLocales from './loadLocales';
 
@@ -14,8 +15,8 @@ const vtkExtension = {
    */
   id: 'vtk',
 
-  getViewportModule() {
-    return OHIFVTKViewport;
+  getViewportModule({ commandsManager }) {
+    return withCommandsManager(OHIFVTKViewport, commandsManager);
   },
   getToolbarModule() {
     return toolbarModule;

extensions/vtk/src/withCommandsManager.js

@@ -0,0 +1,18 @@
+import React from 'react';
+
+export default function withCommandsManager(Component, commandsManager = {}) {
+  return class WithCommandsManager extends React.Component {
+    render() {
+      return (
+        <Component
+          {...this.props}
+          onScroll={viewportIndex =>
+            commandsManager.runCommand('getVtkApiForViewportIndex', {
+              index: viewportIndex,
+            })
+          }
+        />
+      );
+    }
+  };
+}

jest.config.js

@@ -10,7 +10,8 @@ module.exports = {
   // https://jestjs.io/docs/en/configuration#projects-array-string-projectconfig
   projects: [
     // "<rootDir>/extensions/*/jest.config.js",
-    "<rootDir>/platform/*/jest.config.js"
+    "<rootDir>/platform/*/jest.config.js",
+    "<rootDir>/extensions/*/jest.config.js"
   ],
   coverageDirectory: "<rootDir>/coverage/"
 };

package.json

@@ -13,11 +13,13 @@
   "scripts": {
     "cm": "npx git-cz",
     "build": "lerna run build:viewer --stream",
+    "build:lt": "lerna run build:viewer:lesion-tracker --stream",
     "build:ci": "lerna run build:viewer:ci --stream",
     "build:demo": "lerna run build:viewer:demo --stream",
     "build:package": "lerna run build:viewer:package --stream",
     "build:package-all": "lerna run build:package --parallel --stream",
     "dev": "lerna run dev:viewer --stream",
+    "dev:lt": "lerna run dev:viewer:lesion-tracker --stream",
     "dev:project": ".scripts/dev.sh",
     "dev:orthanc": "lerna run dev:orthanc --stream",
     "orthanc:up": "docker-compose -f .docker/Nginx-Orthanc/docker-compose.yml up",
@@ -59,6 +61,7 @@
     "copy-webpack-plugin": "^5.0.3",
     "cross-env": "^5.2.0",
     "css-loader": "^3.2.0",
+    "cypress-file-upload": "^3.5.3",
     "dotenv": "^8.1.0",
     "eslint": "5.16.0",
     "eslint-config-prettier": "^6.4.0",
@@ -72,7 +75,6 @@
     "eslint-plugin-react": "7.x",
     "eslint-plugin-react-hooks": "1.5.0",
     "extract-css-chunks-webpack-plugin": "^4.5.4",
-    "favicons-webpack-plugin": "^1.0.2",
     "html-webpack-plugin": "^3.2.0",
     "husky": "^3.0.0",
     "jest": "^24.8.0",

platform/core/CHANGELOG.md

@@ -3,6 +3,79 @@
 All notable changes to this project will be documented in this file.
 See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
 
+# [2.4.0](https://github.com/OHIF/Viewers/compare/@ohif/core@2.3.9...@ohif/core@2.4.0) (2020-02-10)
+
+
+### Features
+
+* 🎸 MeasurementService ([#1314](https://github.com/OHIF/Viewers/issues/1314)) ([0c37a40](https://github.com/OHIF/Viewers/commit/0c37a406d963569af8c3be24c697dafd42712dfc))
+
+
+
+
+
+## [2.3.9](https://github.com/OHIF/Viewers/compare/@ohif/core@2.3.8...@ohif/core@2.3.9) (2020-02-07)
+
+**Note:** Version bump only for package @ohif/core
+
+
+
+
+
+## [2.3.8](https://github.com/OHIF/Viewers/compare/@ohif/core@2.3.7...@ohif/core@2.3.8) (2020-02-06)
+
+
+### Bug Fixes
+
+* Remove trash data from redux storage after updates ([#1358](https://github.com/OHIF/Viewers/issues/1358)) ([7b2d44f](https://github.com/OHIF/Viewers/commit/7b2d44f2c18241ea521b8d3652aee32e36eaddb8))
+
+
+
+
+
+## [2.3.7](https://github.com/OHIF/Viewers/compare/@ohif/core@2.3.6...@ohif/core@2.3.7) (2020-01-30)
+
+
+### Bug Fixes
+
+* Set VTK viewport as active by interaction  ([#1139](https://github.com/OHIF/Viewers/issues/1139)) ([686d12d](https://github.com/OHIF/Viewers/commit/686d12da5c9d3d435b1e326c2a5caee36e2ed27c))
+
+
+
+
+
+## [2.3.6](https://github.com/OHIF/Viewers/compare/@ohif/core@2.3.5...@ohif/core@2.3.6) (2020-01-28)
+
+**Note:** Version bump only for package @ohif/core
+
+
+
+
+
+## [2.3.5](https://github.com/OHIF/Viewers/compare/@ohif/core@2.3.4...@ohif/core@2.3.5) (2020-01-28)
+
+**Note:** Version bump only for package @ohif/core
+
+
+
+
+
+## [2.3.4](https://github.com/OHIF/Viewers/compare/@ohif/core@2.3.3...@ohif/core@2.3.4) (2020-01-27)
+
+**Note:** Version bump only for package @ohif/core
+
+
+
+
+
+## [2.3.3](https://github.com/OHIF/Viewers/compare/@ohif/core@2.3.2...@ohif/core@2.3.3) (2020-01-24)
+
+**Note:** Version bump only for package @ohif/core
+
+
+
+
+
 ## [2.3.2](https://github.com/OHIF/Viewers/compare/@ohif/core@2.3.1...@ohif/core@2.3.2) (2020-01-06)
 
 **Note:** Version bump only for package @ohif/core

platform/core/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@ohif/core",
-  "version": "2.3.2",
+  "version": "2.4.0",
   "description": "Generic business logic for web-based medical imaging applications",
   "author": "OHIF Core Team",
   "license": "MIT",
@@ -32,7 +32,7 @@
   },
   "peerDependencies": {
     "cornerstone-core": "^2.2.8",
-    "cornerstone-tools": "^4.9.0",
+    "cornerstone-tools": "^4.12.0",
     "cornerstone-wado-image-loader": "^3.0.0",
     "dicom-parser": "^1.8.3"
   },

platform/core/src/classes/CommandsManager.js

@@ -161,7 +161,7 @@ export class CommandsManager {
       return;
     }
 
-    const { commandFn, storeContexts } = definition;
+    const { commandFn, storeContexts = [] } = definition;
     const definitionOptions = definition.options;
 
     let commandParams = {};

platform/core/src/index.js

@@ -24,6 +24,7 @@ import {
   UINotificationService,
   UIModalService,
   UIDialogService,
+  MeasurementService,
 } from './services';
 
 const OHIF = {
@@ -55,6 +56,7 @@ const OHIF = {
   UINotificationService,
   UIModalService,
   UIDialogService,
+  MeasurementService,
 };
 
 export {
@@ -85,6 +87,7 @@ export {
   UINotificationService,
   UIModalService,
   UIDialogService,
+  MeasurementService,
 };
 
 export { OHIF };

platform/core/src/index.test.js

@@ -13,6 +13,7 @@ describe('Top level exports', () => {
       'UINotificationService',
       'UIModalService',
       'UIDialogService',
+      'MeasurementService',
       //
       'utils',
       'studies',

platform/core/src/redux/reducers/servers.js

@@ -11,6 +11,16 @@ const servers = (state = defaultState, action) => {
       servers.forEach(s => (s.active = true));
       return { ...state, servers };
 
+    case 'ACTIVATE_SERVER': {
+      const newServer = { ...action.server, active: true };
+      const newServers = state.servers;
+      newServers.forEach(s => (s.active = false));
+      return {
+        ...state,
+        servers: uniqBy([...newServers, newServer], 'wadoRoot'),
+      };
+    }
+
     case 'SET_SERVERS':
       return { ...state, servers: action.servers };
 

platform/core/src/redux/reducers/viewports.js

@@ -11,20 +11,63 @@ import {
   SET_VIEWPORT_LAYOUT_AND_DATA,
 } from './../constants/ActionTypes.js';
 
-const DEFAULT_STATE = {
+export const DEFAULT_STATE = {
   numRows: 1,
   numColumns: 1,
   activeViewportIndex: 0,
   layout: {
-    viewports: [
-      {
-        // plugin: 'cornerstone',
-      },
-    ],
+    viewports: [{}],
   },
   viewportSpecificData: {},
 };
 
+/**
+ *  Take the new number of rows and columns, delete all not used viewport data and also set
+ *  active viewport as default in case current one is not available anymore.
+ *
+ * @param {Number} numRows
+ * @param {Number} numColumns
+ * @param {Object} currentViewportSpecificData
+ * @returns
+ */
+const findActiveViewportSpecificData = (
+  numRows,
+  numColumns,
+  currentViewportSpecificData = {}
+) => {
+  const numberOfViewports = numRows * numColumns;
+  const viewportSpecificData = cloneDeep(currentViewportSpecificData);
+
+  if (numberOfViewports < Object.keys(viewportSpecificData).length) {
+    Object.keys(viewportSpecificData).forEach(key => {
+      if (key > numberOfViewports - 1) {
+        delete viewportSpecificData[key];
+      }
+    });
+  }
+
+  return viewportSpecificData;
+};
+/**
+ *  Take new number of rows and columns and make sure the current active viewport index is still available, if not, return the default
+ *
+ * @param {Number} numRows
+ * @param {Number} numColumns
+ * @param {Number} currentActiveViewportIndex
+ * @returns
+ */
+const getActiveViewportIndex = (
+  numRows,
+  numColumns,
+  currentActiveViewportIndex
+) => {
+  const numberOfViewports = numRows * numColumns;
+
+  return currentActiveViewportIndex > numberOfViewports - 1
+    ? DEFAULT_STATE.activeViewportIndex
+    : currentActiveViewportIndex;
+};
+
 /**
  * The definition of a viewport action.
  *
@@ -50,7 +93,12 @@ const viewports = (state = DEFAULT_STATE, action) => {
      * @return {Object} New state.
      */
     case SET_VIEWPORT_ACTIVE: {
-      return { ...state, activeViewportIndex: action.viewportIndex };
+      const activeViewportIndex = getActiveViewportIndex(
+        state.numRows,
+        state.numColumns,
+        action.viewportIndex
+      );
+      return { ...state, activeViewportIndex };
     }
 
     /**
@@ -59,11 +107,25 @@ const viewports = (state = DEFAULT_STATE, action) => {
      * @return {Object} New state.
      */
     case SET_VIEWPORT_LAYOUT: {
+      const { numRows, numColumns } = action;
+      const viewportSpecificData = findActiveViewportSpecificData(
+        numRows,
+        numColumns,
+        state.viewportSpecificData
+      );
+      const activeViewportIndex = getActiveViewportIndex(
+        numRows,
+        numColumns,
+        state.activeViewportIndex
+      );
+
       return {
         ...state,
         numRows: action.numRows,
         numColumns: action.numColumns,
         layout: { viewports: [...action.viewports] },
+        viewportSpecificData,
+        activeViewportIndex,
       };
     }
 
@@ -73,12 +135,25 @@ const viewports = (state = DEFAULT_STATE, action) => {
      * @return {Object} New state.
      */
     case SET_VIEWPORT_LAYOUT_AND_DATA: {
+      const { numRows, numColumns } = action;
+      const viewportSpecificData = findActiveViewportSpecificData(
+        numRows,
+        numColumns,
+        action.viewportSpecificData
+      );
+      const activeViewportIndex = getActiveViewportIndex(
+        numRows,
+        numColumns,
+        state.activeViewportIndex
+      );
+
       return {
         ...state,
         numRows: action.numRows,
         numColumns: action.numColumns,
         layout: { viewports: [...action.viewports] },
-        viewportSpecificData: cloneDeep(action.viewportSpecificData),
+        viewportSpecificData,
+        activeViewportIndex,
       };
     }
 

platform/core/src/redux/reducers/viewports.test.js

@@ -1,35 +1,61 @@
-// https://medium.com/@netxm/testing-redux-reducers-with-jest-6653abbfe3e1
-import reducer from './viewports.js';
+import { Reducer } from 'redux-testkit';
+
+import reducer, { DEFAULT_STATE } from './viewports.js';
 import * as types from './../constants/ActionTypes.js';
 
 describe('viewports reducer', () => {
   it('should return the initial state', () => {
-    expect(reducer(undefined, {})).toEqual({
-      activeViewportIndex: 0,
-      numRows: 1,
-      numColumns: 1,
-      layout: {
-        viewports: [{}],
-      },
-      viewportSpecificData: {},
-    });
+    expect(reducer(undefined, {})).toEqual(DEFAULT_STATE);
   });
 
-  it('should handle SET_VIEWPORT_ACTIVE', () => {
-    const setViewportActiveAction = {
+  it('should handle SET_VIEWPORT_ACTIVE with inexistent viewport index', () => {
+    const initialState = {
+      numRows: 4,
+      numColumns: 4,
+      activeViewportIndex: 0,
+    };
+
+    const action = {
       type: types.SET_VIEWPORT_ACTIVE,
       viewportIndex: 100,
     };
 
-    const updatedState = reducer({}, setViewportActiveAction);
+    const expectedToChangeInState = {
+      activeViewportIndex: 0,
+    };
 
-    expect(updatedState.activeViewportIndex).toEqual(
-      setViewportActiveAction.viewportIndex
-    );
+    Reducer(reducer)
+      .withState(initialState)
+      .expect(action)
+      .toChangeInState(expectedToChangeInState);
+  });
+
+  it('should handle SET_VIEWPORT_ACTIVE with existent viewport index', () => {
+    const initialState = {
+      numRows: 4,
+      numColumns: 4,
+      activeViewportIndex: 0,
+    };
+
+    const action = {
+      type: types.SET_VIEWPORT_ACTIVE,
+      viewportIndex: 5,
+    };
+
+    const expectedToChangeInState = {
+      activeViewportIndex: 5,
+    };
+
+    Reducer(reducer)
+      .withState(initialState)
+      .expect(action)
+      .toChangeInState(expectedToChangeInState);
   });
 
   it('should handle SET_VIEWPORT_LAYOUT', () => {
-    const setViewportLayoutAction = {
+    const initialState = DEFAULT_STATE;
+
+    const action = {
       type: types.SET_VIEWPORT_LAYOUT,
       numRows: 1,
       numColumns: 2,
@@ -43,18 +69,193 @@ describe('viewports reducer', () => {
       ],
     };
 
-    const updatedState = reducer({}, setViewportLayoutAction);
+    const expectedToChangeInState = {
+      numRows: 1,
+      numColumns: 2,
+      layout: {
+        viewports: [
+          {
+            plugin: 'cornerstone',
+          },
+          {
+            plugin: 'vtk',
+          },
+        ],
+      },
+    };
 
-    expect(updatedState.numRows).toEqual(setViewportLayoutAction.numRows);
-    expect(updatedState.numColumns).toEqual(setViewportLayoutAction.numColumns);
-    expect(updatedState.layout.viewports).toEqual(
-      setViewportLayoutAction.viewports
-    );
+    Reducer(reducer)
+      .withState(initialState)
+      .expect(action)
+      .toChangeInState(expectedToChangeInState);
+  });
+
+  it('should handle SET_VIEWPORT_LAYOUT when we reduce the number of viewports', () => {
+    const initialState = {
+      numRows: 1,
+      numColumns: 2,
+      viewportSpecificData: {
+        0: { viewportData0: 'viewportData0' },
+        1: { viewportData1: 'viewportData1' },
+      },
+      layout: {
+        viewports: [],
+      },
+      activeViewportIndex: 0,
+    };
+
+    const action = {
+      type: types.SET_VIEWPORT_LAYOUT,
+      numRows: 1,
+      numColumns: 1,
+      viewports: [],
+    };
+
+    const expectedState = {
+      numRows: 1,
+      numColumns: 1,
+      viewportSpecificData: {
+        0: { viewportData0: 'viewportData0' },
+      },
+      layout: {
+        viewports: [],
+      },
+      activeViewportIndex: 0,
+    };
+
+    Reducer(reducer)
+      .withState(initialState)
+      .expect(action)
+      .toReturnState(expectedState);
+  });
+
+  it('should handle SET_VIEWPORT_LAYOUT_AND_DATA', () => {
+    const initialState = {
+      numRows: 1,
+      numColumns: 1,
+      viewportSpecificData: {
+        0: { viewportData0: 'data0' },
+      },
+      layout: {
+        viewports: [{ plugin: 'cornerstone' }],
+      },
+      activeViewportIndex: 0,
+    };
+
+    const action = {
+      type: types.SET_VIEWPORT_LAYOUT_AND_DATA,
+      numRows: 1,
+      numColumns: 2,
+      viewports: [{ plugin: 'cornerstone' }, { plugin: 'cornerstone' }],
+      viewportSpecificData: {
+        0: { viewportData0: 'NEWdata0' },
+        1: { viewportData1: 'NEWdata1' },
+      },
+    };
+
+    const expectedState = {
+      numRows: 1,
+      numColumns: 2,
+      viewportSpecificData: {
+        0: { viewportData0: 'NEWdata0' },
+        1: { viewportData1: 'NEWdata1' },
+      },
+      layout: {
+        viewports: [{ plugin: 'cornerstone' }, { plugin: 'cornerstone' }],
+      },
+      activeViewportIndex: 0,
+    };
+
+    Reducer(reducer)
+      .withState(initialState)
+      .expect(action)
+      .toReturnState(expectedState);
+  });
+
+  it('should handle SET_VIEWPORT_LAYOUT_AND_DATA when we reduce the number of viewports', () => {
+    const initialState = {
+      numRows: 1,
+      numColumns: 3,
+      viewportSpecificData: {
+        0: { viewportData0: 'vtkData0' },
+        1: { viewportData1: 'vtkData1' },
+        2: { viewportData2: 'vtkData2' },
+      },
+      layout: {
+        viewports: [{ plugin: 'vtk' }, { plugin: 'vtk' }, { plugin: 'vtk' }],
+      },
+      activeViewportIndex: 0,
+    };
+
+    const action = {
+      type: types.SET_VIEWPORT_LAYOUT_AND_DATA,
+      numRows: 1,
+      numColumns: 1,
+      viewports: [{ plugin: 'cornerstone' }],
+      viewportSpecificData: {
+        0: { viewportData0: 'cornerstoneData0' },
+      },
+    };
+
+    const expectedState = {
+      numRows: 1,
+      numColumns: 1,
+      viewportSpecificData: {
+        0: { viewportData0: 'cornerstoneData0' },
+      },
+      layout: {
+        viewports: [{ plugin: 'cornerstone' }],
+      },
+      activeViewportIndex: 0,
+    };
+
+    Reducer(reducer)
+      .withState(initialState)
+      .expect(action)
+      .toReturnState(expectedState);
+  });
+
+  it('should handle SET_VIEWPORT when we only set one viewport specific data', () => {
+    const initialState = {
+      numRows: 1,
+      numColumns: 2,
+      viewportSpecificData: {
+        0: { viewportData0: 'data0' },
+        1: { viewportData1: 'data1' },
+      },
+      layout: {
+        viewports: [{ plugin: 'cornerstone' }, { plugin: 'cornerstone' }],
+      },
+      activeViewportIndex: 0,
+    };
+
+    const action = {
+      type: types.SET_VIEWPORT,
+      viewportIndex: 1,
+      viewportSpecificData: {
+        viewportData1: 'NEWdata1',
+      },
+    };
+
+    const expectedState = {
+      numRows: 1,
+      numColumns: 2,
+      viewportSpecificData: {
+        0: { viewportData0: 'data0' },
+        1: { viewportData1: 'NEWdata1' },
+      },
+      layout: {
+        viewports: [{ plugin: 'cornerstone' }, { plugin: 'cornerstone' }],
+      },
+      activeViewportIndex: 0,
+    };
+
+    Reducer(reducer)
+      .withState(initialState)
+      .expect(action)
+      .toReturnState(expectedState);
   });
 
-  // If there were previous keys, this would have
-  // "merge" behavior, not a clear & set
-  // May be worth another test?
   it('should handle SET_VIEWPORT', () => {
     const viewportToSet = 0;
     const setViewportAction = {

platform/core/src/services/MeasurementService/MeasurementService.js

@@ -0,0 +1,481 @@
+import log from '../../log';
+import guid from '../../utils/guid';
+
+/**
+ * Measurement source schema
+ *
+ * @typedef {Object} MeasurementSource
+ * @property {number} id -
+ * @property {string} name -
+ * @property {string} version -
+ */
+
+/**
+ * Measurement schema
+ *
+ * @typedef {Object} Measurement
+ * @property {number} id -
+ * @property {string} sopInstanceUID -
+ * @property {string} frameOfReferenceUID -
+ * @property {string} referenceSeriesUID -
+ * @property {string} label -
+ * @property {string} description -
+ * @property {string} type -
+ * @property {string} unit -
+ * @property {number} area -
+ * @property {Array} points -
+ * @property {MeasurementSource} source -
+ */
+
+/* Measurement schema keys for object validation. */
+const MEASUREMENT_SCHEMA_KEYS = [
+  'id',
+  'sopInstanceUID',
+  'frameOfReferenceUID',
+  'referenceSeriesUID',
+  'label',
+  'description',
+  'type',
+  'unit',
+  'area', // TODO: Add concept names instead (descriptor)
+  'points',
+  'source',
+];
+
+const EVENTS = {
+  MEASUREMENT_UPDATED: 'event::measurement_updated',
+  MEASUREMENT_ADDED: 'event::measurement_added',
+};
+
+const VALUE_TYPES = {
+  POLYLINE: 'value_type::polyline',
+  POINT: 'value_type::point',
+  ELLIPSE: 'value_type::ellipse',
+  MULTIPOINT: 'value_type::multipoint',
+  CIRCLE: 'value_type::circle',
+};
+
+class MeasurementService {
+  constructor() {
+    this.sources = {};
+    this.mappings = {};
+    this.measurements = {};
+    this.listeners = {};
+    Object.defineProperty(this, 'EVENTS', {
+      value: EVENTS,
+      writable: false,
+      enumerable: true,
+      configurable: false,
+    });
+    Object.defineProperty(this, 'VALUE_TYPES', {
+      value: VALUE_TYPES,
+      writable: false,
+      enumerable: true,
+      configurable: false,
+    });
+  }
+
+  /**
+   * Get all measurements.
+   *
+   * @return {Measurement[]} Array of measurements
+   */
+  getMeasurements() {
+    const measurements = this._arrayOfObjects(this.measurements);
+    return (
+      measurements &&
+      measurements.map(m => this.measurements[Object.keys(m)[0]])
+    );
+  }
+
+  /**
+   * Get specific measurement by its id.
+   *
+   * @param {string} id If of the measurement
+   * @return {Measurement} Measurement instance
+   */
+  getMeasurement(id) {
+    let measurement = null;
+    const measurements = this.measurements[id];
+
+    if (measurements && Object.keys(measurements).length > 0) {
+      measurement = this.measurements[id];
+    }
+
+    return measurement;
+  }
+
+  /**
+   * Create a new source.
+   *
+   * @param {string} name Name of the source
+   * @param {string} version Source name
+   * @return {MeasurementSource} Measurement source instance
+   */
+  createSource(name, version) {
+    if (!name) {
+      log.warn('Source name not provided. Exiting early.');
+      return;
+    }
+
+    if (!version) {
+      log.warn('Source version not provided. Exiting early.');
+      return;
+    }
+
+    const id = guid();
+    const source = {
+      id,
+      name,
+      version,
+    };
+    source.addOrUpdate = (definition, measurement) => {
+      return this.addOrUpdate(source, definition, measurement);
+    };
+    source.getAnnotation = (definition, measurementId) => {
+      return this.getAnnotation(source, definition, measurementId);
+    };
+
+    log.info(`New '${name}@${version}' source added.`);
+    this.sources[id] = source;
+
+    return source;
+  }
+
+  /**
+   * Add a new measurement matching criteria along with mapping functions.
+   *
+   * @param {MeasurementSource} source Measurement source instance
+   * @param {string} definition Definition of the measurement (Annotation Type)
+   * @param {MatchingCriteria} matchingCriteria The matching criteria
+   * @param {Function} toSourceSchema Mapping function to source schema
+   * @param {Function} toMeasurementSchema Mapping function to measurement schema
+   * @return void
+   */
+  addMapping(
+    source,
+    definition,
+    matchingCriteria,
+    toSourceSchema,
+    toMeasurementSchema
+  ) {
+    if (!this._isValidSource(source)) {
+      log.warn('Invalid source. Exiting early.');
+      return;
+    }
+
+    if (!matchingCriteria) {
+      log.warn('Matching criteria not provided. Exiting early.');
+      return;
+    }
+
+    if (!definition) {
+      log.warn('Definition not provided. Exiting early.');
+      return;
+    }
+
+    if (!toSourceSchema) {
+      log.warn('Source mapping function not provided. Exiting early.');
+      return;
+    }
+
+    if (!toMeasurementSchema) {
+      log.warn('Measurement mapping function not provided. Exiting early.');
+      return;
+    }
+
+    const mapping = {
+      matchingCriteria,
+      definition,
+      toSourceSchema,
+      toMeasurementSchema,
+    };
+
+    if (Array.isArray(this.mappings[source.id])) {
+      this.mappings[source.id].push(mapping);
+    } else {
+      this.mappings[source.id] = [mapping];
+    }
+
+    log.info(`New measurement mapping added to source '${this._getSourceInfo(source)}'.`);
+  }
+
+  /**
+   * Get annotation for specific source.
+   *
+   * @param {MeasurementSource} source Measurement source instance
+   * @param {string} definition The source definition
+   * @param {string} measurementId The measurement service measurement id
+   * @return {Object} Source measurement schema
+   */
+  getAnnotation(source, definition, measurementId) {
+    if (!this._isValidSource(source)) {
+      log.warn('Invalid source. Exiting early.');
+      return;
+    }
+
+    if (!definition) {
+      log.warn('No source definition provided. Exiting early.');
+      return;
+    }
+
+    const mapping = this._getMappingByMeasurementSource(measurementId, definition);
+    if (mapping) return mapping.toSourceSchema(measurement, definition);
+
+    const measurement = this.getMeasurement(measurementId);
+    const matchingMapping = this._getMatchingMapping(source, definition, measurement);
+
+    if (matchingMapping) {
+      log.info('Matching mapping found:', matchingMapping);
+      const { toSourceSchema, definition } = matchingMapping;
+      return toSourceSchema(measurement, definition);
+    }
+  }
+
+  /**
+   * Adds or update persisted measurements.
+   *
+   * @param {MeasurementSource} source The measurement source instance
+   * @param {string} definition The source definition
+   * @param {Measurement} measurement The source measurement
+   * @return {string} A measurement id
+   */
+  addOrUpdate(source, definition, sourceMeasurement) {
+    if (!this._isValidSource(source)) {
+      log.warn('Invalid source. Exiting early.');
+      return;
+    }
+
+    const sourceInfo = this._getSourceInfo(source);
+
+    if (!definition) {
+      log.warn('No source definition provided. Exiting early.');
+      return;
+    }
+
+    if (!this._sourceHasMappings(source)) {
+      log.warn(`No measurement mappings found for '${sourceInfo}' source. Exiting early.`);
+      return;
+    }
+
+    let measurement = {};
+    try {
+      const sourceMappings = this.mappings[source.id];
+      const { toMeasurementSchema } = sourceMappings.find(
+        mapping => mapping.definition === definition
+      );
+
+      /* Convert measurement */
+      measurement = toMeasurementSchema(sourceMeasurement);
+
+      /* Assign measurement source instance */
+      measurement.source = source;
+    } catch (error) {
+      log.error(`Failed to map '${sourceInfo}' measurement for definition ${definition}:`, error.message);
+      return;
+    }
+
+    if (!this._isValidMeasurement(measurement)) {
+      log.warn(
+        `Attempting to add or update a invalid measurement provided by '${sourceInfo}'. Exiting early.`
+      );
+      return;
+    }
+
+    let internalId = sourceMeasurement.id;
+    if (!internalId) {
+      internalId = guid();
+      log.warn(`Measurement ID not found. Generating UID: ${internalId}`);
+    }
+
+    const newMeasurement = {
+      ...measurement,
+      modifiedTimestamp: Math.floor(Date.now() / 1000),
+      id: internalId,
+    };
+
+    if (this.measurements[internalId]) {
+      log.info(`Measurement already defined. Updating measurement.`, newMeasurement);
+      this.measurements[internalId] = newMeasurement;
+      this._broadcastChange(this.EVENTS.MEASUREMENT_UPDATED, source, newMeasurement);
+    } else {
+      log.info(`Measurement added.`, newMeasurement);
+      this.measurements[internalId] = newMeasurement;
+      this._broadcastChange(this.EVENTS.MEASUREMENT_ADDED, source, newMeasurement);
+    }
+
+    return newMeasurement.id;
+  }
+
+  /**
+   * Subscribe to measurement updates.
+   *
+   * @param {string} eventName The name of the event
+   * @param {Function} callback Events callback
+   * @return {Object} Observable object with actions
+   */
+  subscribe(eventName, callback) {
+    if (this._isValidEvent(eventName)) {
+      const listenerId = guid();
+      const subscription = { id: listenerId, callback };
+
+      console.info(`Subscribing to '${eventName}'.`);
+      if (Array.isArray(this.listeners[eventName])) {
+        this.listeners[eventName].push(subscription);
+      } else {
+        this.listeners[eventName] = [subscription];
+      }
+
+      return {
+        unsubscribe: () => this._unsubscribe(eventName, listenerId),
+      };
+    } else {
+      throw new Error(`Event ${eventName} not supported.`);
+    }
+  }
+
+  _getMappingByMeasurementSource(measurementId, definition) {
+    const measurement = this.getMeasurement(measurementId);
+    if (this._isValidSource(measurement.source)) {
+      return this.mappings[measurement.source.id].find(
+        m => m.definition === definition
+      );
+    }
+  }
+
+  /**
+   * Get measurement mapping function if matching criteria.
+   *
+   * @param {MeasurementSource} source Measurement source instance
+   * @param {string} definition The source definition
+   * @param {string} measurement The measurement serice measurement
+   * @return {Object} The mapping based on matched criteria
+   */
+  _getMatchingMapping(source, definition, measurement) {
+    const sourceMappings = this.mappings[source.id];
+
+    const sourceMappingsByDefinition = sourceMappings.filter(
+      mapping => mapping.definition === definition
+    );
+
+    /* Criteria Matching */
+    return sourceMappingsByDefinition.find(({ matchingCriteria }) => {
+      return (
+        measurement.points &&
+        measurement.points.length === matchingCriteria.points
+      );
+    });
+  }
+
+  /**
+   * Returns formatted string with source info.
+   *
+   * @param {MeasurementSource} source Measurement source
+   * @return {string} Source information
+   */
+  _getSourceInfo(source) {
+    return `${source.name}@${source.version}`;
+  }
+
+  /**
+   * Checks if given source is valid.
+   *
+   * @param {MeasurementSource} source Measurement source
+   * @return {boolean} Measurement source validation
+   */
+  _isValidSource(source) {
+    return source && this.sources[source.id];
+  }
+
+  /**
+   * Checks if a given source has mappings.
+   *
+   * @param {MeasurementSource} source The measurement source
+   * @return {boolean} Validation if source has mappings
+   */
+  _sourceHasMappings(source) {
+    return (
+      Array.isArray(this.mappings[source.id]) && this.mappings[source.id].length
+    );
+  }
+
+  /**
+   * Broadcasts measurement changes.
+   *
+   * @param {string} measurementId The measurement id
+   * @param {MeasurementSource} source The measurement source
+   * @param {string} eventName The event name
+   * @return void
+   */
+  _broadcastChange(eventName, source, measurement) {
+    const hasListeners = Object.keys(this.listeners).length > 0;
+    const hasCallbacks = Array.isArray(this.listeners[eventName]);
+
+    if (hasListeners && hasCallbacks) {
+      this.listeners[eventName].forEach(listener => {
+        listener.callback({ source, measurement });
+      });
+    }
+  }
+
+  /**
+   * Unsubscribe to measurement updates.
+   *
+   * @param {string} eventName The name of the event
+   * @param {string} listenerId The listeners id
+   * @return void
+   */
+  _unsubscribe(eventName, listenerId) {
+    if (!this.listeners[eventName]) {
+      return;
+    }
+
+    const listeners = this.listeners[eventName];
+    if (Array.isArray(listeners)) {
+      this.listeners[eventName] = listeners.filter(
+        ({ id }) => id !== listenerId
+      );
+    } else {
+      this.listeners[eventName] = undefined;
+    }
+  }
+
+  /**
+   * Check if a given measurement data is valid.
+   *
+   * @param {Measurement} measurementData Measurement data
+   * @return {boolean} Measurement validation
+   */
+  _isValidMeasurement(measurementData) {
+    Object.keys(measurementData).forEach(key => {
+      if (!MEASUREMENT_SCHEMA_KEYS.includes(key)) {
+        log.warn(`Invalid measurement key: ${key}`);
+        return false;
+      }
+    });
+
+    return true;
+  }
+
+  /**
+   * Check if a given measurement service event is valid.
+   *
+   * @param {string} eventName The name of the event
+   * @return {boolean} Event name validation
+   */
+  _isValidEvent(eventName) {
+    return Object.values(this.EVENTS).includes(eventName);
+  }
+
+  /**
+   * Converts object of objects to array.
+   *
+   * @return {Array} Array of objects
+   */
+  _arrayOfObjects = obj => {
+    return Object.entries(obj).map(e => ({ [e[0]]: e[1] }));
+  };
+}
+
+export default MeasurementService;
+export { EVENTS, VALUE_TYPES };

platform/core/src/services/MeasurementService/MeasurementService.test.js

@@ -0,0 +1,405 @@
+import MeasurementService from './MeasurementService.js';
+import log from '../../log';
+
+jest.mock('../../log.js', () => ({
+  info: jest.fn(),
+  warn: jest.fn(),
+  error: jest.fn(),
+}));
+
+describe('MeasurementService.js', () => {
+  let measurementService;
+  let measurement;
+  let source;
+  let definition;
+  let matchingCriteria;
+  let toAnnotation;
+  let toMeasurement;
+  let annotation;
+
+  beforeEach(() => {
+    measurementService = new MeasurementService();
+    source = measurementService.createSource('Test', '1');
+    definition = 'Length';
+    annotation = {
+      toolName: definition,
+      measurementData: {},
+    };
+    measurement = {
+      sopInstanceUID: '123',
+      frameOfReferenceUID: '1234',
+      referenceSeriesUID: '12345',
+      label: 'Label',
+      description: 'Description',
+      unit: 'mm',
+      area: 123,
+      type: measurementService.VALUE_TYPES.POLYLINE,
+      points: [{ x: 1, y: 2 }, { x: 1, y: 2 }],
+      source: source,
+    };
+    toAnnotation = () => annotation;
+    toMeasurement = () => measurement;
+    matchingCriteria = {
+      valueType: measurementService.VALUE_TYPES.POLYLINE,
+      points: 2,
+    };
+    log.warn.mockClear();
+    jest.clearAllMocks();
+  });
+
+  describe('createSource()', () => {
+    it('creates new source with name and version', () => {
+      measurementService.createSource('Testing', '1');
+    });
+
+    it('logs warning and return early if no name provided', () => {
+      measurementService.createSource(null, '1');
+
+      expect(log.warn.mock.calls.length).toBe(1);
+    });
+
+    it('logs warning and return early if no version provided', () => {
+      measurementService.createSource('Testing', null);
+
+      expect(log.warn.mock.calls.length).toBe(1);
+    });
+  });
+
+  describe('addMapping()', () => {
+    it('adds new mapping', () => {
+      measurementService.addMapping(
+        source,
+        definition,
+        matchingCriteria,
+        toAnnotation,
+        toMeasurement
+      );
+    });
+
+    it('logs warning and return early if no matching criteria provided', () => {
+      measurementService.addMapping(
+        source,
+        definition,
+        null,
+        toAnnotation,
+        toMeasurement
+      );
+
+      expect(log.warn.mock.calls.length).toBe(1);
+    });
+
+    it('logs warning and return early if invalid source provided', () => {
+      const invalidSoure = {};
+
+      measurementService.addMapping(
+        invalidSoure,
+        definition,
+        matchingCriteria,
+        toAnnotation,
+        toMeasurement
+      );
+
+      expect(log.warn.mock.calls.length).toBe(1);
+    });
+
+    it('logs warning and return early if no source provided', () => {
+      measurementService.addMapping(
+        null /* source */,
+        definition,
+        matchingCriteria,
+        toAnnotation,
+        toMeasurement
+      );
+
+      expect(log.warn.mock.calls.length).toBe(1);
+    });
+
+    it('logs warning and return early if no definition provided', () => {
+      measurementService.addMapping(
+        source,
+        null /* definition */,
+        matchingCriteria,
+        toAnnotation,
+        toMeasurement
+      );
+
+      expect(log.warn.mock.calls.length).toBe(1);
+    });
+
+    it('logs warning and return early if no measurement mapping function provided', () => {
+      measurementService.addMapping(
+        source,
+        definition,
+        matchingCriteria,
+        null /* toAnnotation */,
+        toMeasurement
+      );
+
+      expect(log.warn.mock.calls.length).toBe(1);
+    });
+
+    it('logs warning and return early if no annotation mapping function provided', () => {
+      measurementService.addMapping(
+        source,
+        definition,
+        matchingCriteria,
+        toAnnotation,
+        null /* toMeasurement */
+      );
+
+      expect(log.warn.mock.calls.length).toBe(1);
+    });
+  });
+
+  describe('getAnnotation()', () => {
+    it('get annotation based on matched criteria', () => {
+      measurementService.addMapping(
+        source,
+        definition,
+        matchingCriteria,
+        toAnnotation,
+        toMeasurement
+      );
+      const measurementId = source.addOrUpdate(definition, annotation);
+      const mappedAnnotation = source.getAnnotation(definition, measurementId);
+
+      expect(annotation).toBe(mappedAnnotation);
+    });
+
+    it('get annotation based on source and definition', () => {
+      measurementService.addMapping(
+        source,
+        definition,
+        {},
+        toAnnotation,
+        toMeasurement
+      );
+      const measurementId = source.addOrUpdate(definition, annotation);
+      const mappedAnnotation = source.getAnnotation(definition, measurementId);
+
+      expect(annotation).toBe(mappedAnnotation);
+    });
+  });
+
+  describe('getMeasurements()', () => {
+    it('return all measurement service measurements', () => {
+      const anotherMeasurement = {
+        ...measurement,
+        label: 'Label2',
+        unit: 'HU',
+      };
+
+      measurementService.addMapping(
+        source,
+        definition,
+        matchingCriteria,
+        toAnnotation,
+        toMeasurement
+      );
+
+      source.addOrUpdate(definition, measurement);
+      source.addOrUpdate(definition, anotherMeasurement);
+
+      const measurements = measurementService.getMeasurements();
+
+      expect(measurements.length).toEqual(2);
+      expect(measurements.length).toEqual(2);
+    });
+  });
+
+  describe('getMeasurement()', () => {
+    it('return measurement service measurement with given id', () => {
+      measurementService.addMapping(
+        source,
+        definition,
+        matchingCriteria,
+        toAnnotation,
+        toMeasurement
+      );
+
+      const id = source.addOrUpdate(definition, measurement);
+      const returnedMeasurement = measurementService.getMeasurement(id);
+
+      /* Clear dynamic data */
+      delete returnedMeasurement.modifiedTimestamp;
+
+      expect({ id, ...measurement }).toEqual(returnedMeasurement);
+    });
+  });
+
+  describe('addOrUpdate()', () => {
+    it('adds new measurements', () => {
+      measurementService.addMapping(
+        source,
+        definition,
+        matchingCriteria,
+        toAnnotation,
+        toMeasurement
+      );
+
+      source.addOrUpdate(definition, measurement);
+      source.addOrUpdate(definition, measurement);
+
+      const measurements = measurementService.getMeasurements();
+
+      expect(measurements.length).toBe(2);
+    });
+
+    it('fails to add new measurements when no mapping', () => {
+      source.addOrUpdate(definition, measurement);
+
+      expect(log.warn.mock.calls.length).toBe(1);
+    });
+
+    it('fails to add new measurements when invalid mapping function', () => {
+      measurementService.addMapping(
+        source,
+        definition,
+        matchingCriteria,
+        toAnnotation,
+        1 /* Invalid */
+      );
+
+      source.addOrUpdate(definition, measurement);
+
+      expect(log.error.mock.calls.length).toBe(1);
+    });
+
+    it('adds new measurement with custom id', () => {
+      const newMeasurement = { id: 1, ...measurement };
+
+      measurementService.addMapping(
+        source,
+        definition,
+        matchingCriteria,
+        toAnnotation,
+        toMeasurement
+      );
+
+      /* Add new measurement */
+      source.addOrUpdate(definition, newMeasurement);
+      const savedMeasurement = measurementService.getMeasurement(newMeasurement.id);
+
+      /* Clear dynamic data */
+      delete newMeasurement.modifiedTimestamp;
+      delete savedMeasurement.modifiedTimestamp;
+
+      expect(newMeasurement).toEqual(savedMeasurement);
+    });
+
+    it('logs warning and return if adding invalid measurement', () => {
+      measurement.invalidProperty = {};
+
+      measurementService.addMapping(
+        source,
+        definition,
+        matchingCriteria,
+        toAnnotation,
+        toMeasurement
+      );
+
+      source.addOrUpdate(definition, measurement);
+
+      expect(log.warn.mock.calls.length).toBe(2);
+    });
+
+    it('updates existent measurement', () => {
+      measurementService.addMapping(
+        source,
+        definition,
+        matchingCriteria,
+        toAnnotation,
+        toMeasurement
+      );
+
+      const id = source.addOrUpdate(definition, measurement);
+
+      measurement.unit = 'HU';
+
+      source.addOrUpdate(definition, { id, ...measurement });
+      const updatedMeasurement = measurementService.getMeasurement(id);
+
+      expect(updatedMeasurement.unit).toBe('HU');
+    });
+  });
+
+  describe('subscribe()', () => {
+    it('subscribers receive broadcasted add event', () => {
+      measurementService.addMapping(
+        source,
+        definition,
+        matchingCriteria,
+        toAnnotation,
+        toMeasurement
+      );
+
+      const { MEASUREMENT_ADDED } = measurementService.EVENTS;
+      let addCallbackWasCalled = false;
+
+      /* Subscribe to add event */
+      measurementService.subscribe(
+        MEASUREMENT_ADDED,
+        () => (addCallbackWasCalled = true)
+      );
+
+      /* Add new measurement */
+      source.addOrUpdate(definition, measurement);
+
+      expect(addCallbackWasCalled).toBe(true);
+    });
+
+    it('subscribers receive broadcasted update event', () => {
+      measurementService.addMapping(
+        source,
+        definition,
+        matchingCriteria,
+        toAnnotation,
+        toMeasurement
+      );
+
+      const { MEASUREMENT_UPDATED } = measurementService.EVENTS;
+      let updateCallbackWasCalled = false;
+
+      /* Subscribe to update event */
+      measurementService.subscribe(
+        MEASUREMENT_UPDATED,
+        () => (updateCallbackWasCalled = true)
+      );
+
+      /* Create measurement */
+      const id = source.addOrUpdate(definition, measurement);
+
+      /* Update measurement */
+      source.addOrUpdate(definition, { id, ...measurement });
+
+      expect(updateCallbackWasCalled).toBe(true);
+    });
+
+    it('unsubscribes a listener', () => {
+      measurementService.addMapping(
+        source,
+        definition,
+        matchingCriteria,
+        toAnnotation,
+        toMeasurement
+      );
+
+      let updateCallbackWasCalled = false;
+      const { MEASUREMENT_ADDED } = measurementService.EVENTS;
+
+      /* Subscribe to Add event */
+      const { unsubscribe } = measurementService.subscribe(
+        MEASUREMENT_ADDED,
+        () => (updateCallbackWasCalled = true)
+      );
+
+      /* Unsubscribe */
+      unsubscribe();
+
+      /* Create measurement */
+      source.addOrUpdate(definition, measurement);
+
+      expect(updateCallbackWasCalled).toBe(false);
+    });
+  });
+});

platform/core/src/services/MeasurementService/index.js

@@ -0,0 +1,8 @@
+import MeasurementService from './MeasurementService';
+
+export default {
+  name: 'MeasurementService',
+  create: ({ configuration = {} }) => {
+    return new MeasurementService();
+  },
+};

platform/core/src/services/index.js

@@ -2,10 +2,12 @@ import ServicesManager from './ServicesManager.js';
 import UINotificationService from './UINotificationService';
 import UIModalService from './UIModalService';
 import UIDialogService from './UIDialogService';
+import MeasurementService from './MeasurementService';
 
 export {
   UINotificationService,
   UIModalService,
   UIDialogService,
   ServicesManager,
+  MeasurementService,
 };

platform/core/src/studies/services/wado/retrieveMetadataLoader.js

@@ -46,7 +46,7 @@ export default class RetrieveMetadataLoader {
     }
 
     if (loaders.next().done && !result) {
-      throw 'cant find data';
+      throw new Error('RetrieveMetadataLoader failed');
     }
 
     return result;

platform/core/src/studies/services/wado/studyInstanceHelpers.js

@@ -1,3 +1,4 @@
+import { api } from 'dicomweb-client';
 import DICOMWeb from '../../../DICOMWeb';
 
 const WADOProxy = {
@@ -21,6 +22,43 @@ function parseFloatArray(obj) {
   return result;
 }
 
+/**
+ * Simple cache schema for retrieved color palettes.
+ */
+const paletteColorCache = {
+  count: 0,
+  maxAge: 24 * 60 * 60 * 1000, // 24h cache?
+  entries: {},
+  isValidUID: function(paletteUID) {
+    return typeof paletteUID === 'string' && paletteUID.length > 0;
+  },
+  get: function(paletteUID) {
+    let entry = null;
+    if (this.entries.hasOwnProperty(paletteUID)) {
+      entry = this.entries[paletteUID];
+      // check how the entry is...
+      if (Date.now() - entry.time > this.maxAge) {
+        // entry is too old... remove entry.
+        delete this.entries[paletteUID];
+        this.count--;
+        entry = null;
+      }
+    }
+    return entry;
+  },
+  add: function(entry) {
+    if (this.isValidUID(entry.uid)) {
+      let paletteUID = entry.uid;
+      if (this.entries.hasOwnProperty(paletteUID) !== true) {
+        this.count++; // increment cache entry count...
+      }
+      entry.time = Date.now();
+      this.entries[paletteUID] = entry;
+      // @TODO: Add logic to get rid of old entries and reduce memory usage...
+    }
+  },
+};
+
 /**
  * Create a plain JS object that describes a study (a study descriptor object)
  * @param {Object} server Object with server configuration parameters
@@ -299,40 +337,41 @@ async function makeSOPInstance(server, study, instance) {
   return sopInstance;
 }
 
+/**
+ * Convert String to ArrayBuffer
+ *
+ * @param {String} str Input String
+ * @return {ArrayBuffer} Output converted ArrayBuffer
+ */
+function str2ab(str) {
+  const strLen = str.length;
+  const bytes = new Uint8Array(strLen);
+
+  for (let i = 0; i < strLen; i++) {
+    bytes[i] = str.charCodeAt(i);
+  }
+
+  return bytes.buffer;
+}
+
 function getPaletteColor(server, instance, tag, lutDescriptor) {
   const numLutEntries = lutDescriptor[0];
   const bits = lutDescriptor[2];
 
-  let uri = WADOProxy.convertURL(instance[tag].BulkDataURI, server);
-
-  // TODO: Workaround for dcm4chee behind SSL-terminating proxy returning
-  // incorrect bulk data URIs
-  if (server.wadoRoot.indexOf('https') === 0 && !uri.includes('https')) {
-    uri = uri.replace('http', 'https');
-  }
-
-  const config = {
-    url: server.wadoRoot, //BulkDataURI is absolute, so this isn't used
-    headers: DICOMWeb.getAuthorizationHeader(server),
-  };
-  const dicomWeb = new api.DICOMwebClient(config);
-  const options = {
-    BulkDataURI: uri,
-  };
-
   const readUInt16 = (byteArray, position) => {
     return byteArray[position] + byteArray[position + 1] * 256;
   };
 
-  const arrayBufferToPaletteColorLUT = result => {
-    const arraybuffer = result[0];
+  const arrayBufferToPaletteColorLUT = arraybuffer => {
     const byteArray = new Uint8Array(arraybuffer);
     const lut = [];
 
-    for (let i = 0; i < numLutEntries; i++) {
-      if (bits === 16) {
+    if (bits === 16) {
+      for (let i = 0; i < numLutEntries; i++) {
         lut[i] = readUInt16(byteArray, i * 2);
-      } else {
+      }
+    } else {
+      for (let i = 0; i < numLutEntries; i++) {
         lut[i] = byteArray[i];
       }
     }
@@ -340,7 +379,38 @@ function getPaletteColor(server, instance, tag, lutDescriptor) {
     return lut;
   };
 
-  return dicomWeb.retrieveBulkData(options).then(arrayBufferToPaletteColorLUT);
+  if (instance[tag].BulkDataURI) {
+    let uri = WADOProxy.convertURL(instance[tag].BulkDataURI, server);
+
+    // TODO: Workaround for dcm4chee behind SSL-terminating proxy returning
+    // incorrect bulk data URIs
+    if (server.wadoRoot.indexOf('https') === 0 && !uri.includes('https')) {
+      uri = uri.replace('http', 'https');
+    }
+
+    const config = {
+      url: server.wadoRoot, //BulkDataURI is absolute, so this isn't used
+      headers: DICOMWeb.getAuthorizationHeader(server),
+    };
+    const dicomWeb = new api.DICOMwebClient(config);
+    const options = {
+      BulkDataURI: uri,
+    };
+
+    return dicomWeb
+      .retrieveBulkData(options)
+      .then(result => result[0])
+      .then(arrayBufferToPaletteColorLUT);
+  } else if (instance[tag].InlineBinary) {
+    const inlineBinaryData = atob(instance[tag].InlineBinary);
+    const arraybuf = str2ab(inlineBinaryData);
+
+    return arrayBufferToPaletteColorLUT(arraybuf);
+  }
+
+  throw new Error(
+    'Palette Color LUT was not provided as InlineBinary or BulkDataURI'
+  );
 }
 
 /**

platform/core/src/utils/isDisplaySetReconstructable.js

@@ -67,6 +67,12 @@ function processSingleframe(instances) {
   if (instances.length > 2) {
     const firstIpp = _getImagePositionPatient(firstImage);
     const lastIpp = _getImagePositionPatient(instances[instances.length - 1]);
+
+    // We can't reconstruct if we are missing imagePositionPatient values
+    if (!firstIpp || !lastIpp) {
+      return { value: false };
+    }
+
     const averageSpacingBetweenFrames =
       _getPerpendicularDistance(firstIpp, lastIpp) / (instances.length - 1);
 
@@ -136,8 +142,13 @@ function _getSpacingIssue(spacing, averageSpacing) {
 }
 
 function _getImagePositionPatient(instance) {
-  return instance
-    .getTagValue('x00200032')
+  const tagValue = instance
+    .getTagValue('x00200032');
+  if (!tagValue) {
+    return;
+  }
+
+  return tagValue
     .split('\\')
     .map(element => Number(element));
 }

platform/i18n/CHANGELOG.md

@@ -3,6 +3,17 @@
 All notable changes to this project will be documented in this file.
 See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
 
+## [0.52.5](https://github.com/OHIF/Viewers/compare/@ohif/i18n@0.52.4...@ohif/i18n@0.52.5) (2020-01-30)
+
+
+### Bug Fixes
+
+* download tool fixes & improvements ([#1235](https://github.com/OHIF/Viewers/issues/1235)) ([b9574b6](https://github.com/OHIF/Viewers/commit/b9574b6efcfeb85cde35b5cae63282f8e1b35be6))
+
+
+
+
+
 ## [0.52.4](https://github.com/OHIF/Viewers/compare/@ohif/i18n@0.52.3...@ohif/i18n@0.52.4) (2019-12-16)
 
 **Note:** Version bump only for package @ohif/i18n

platform/i18n/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@ohif/i18n",
-  "version": "0.52.4",
+  "version": "0.52.5",
   "description": "Internationalization library for The OHIF Viewer",
   "author": "OHIF",
   "license": "MIT",

platform/i18n/src/locales/en-US/ViewportDownloadForm.json

@@ -0,0 +1,14 @@
+{
+  "emptyFilenameError": "The file name cannot be empty.",
+  "fileType": "File Type",
+  "filename": "File Name",
+  "formTitle": "Please specify the dimensions, filename, and desired type for the output image.",
+  "imageHeight": "Image height (px)",
+  "imagePreview": "Image Preview",
+  "imageWidth": "Image width (px)",
+  "keepAspectRatio": "Keep aspect ratio",
+  "loadingPreview": "Loading Image Preview...",
+  "minHeightError": "The minimum valid height is 100px.",
+  "minWidthError": "The minimum valid width is 100px.",
+  "showAnnotations": "Show Annotations"
+}

platform/i18n/src/locales/en-US/index.js

@@ -7,6 +7,7 @@ import Header from './Header.json';
 import MeasurementTable from './MeasurementTable.json';
 import StudyList from './StudyList.json';
 import UserPreferencesModal from './UserPreferencesModal.json';
+import ViewportDownloadForm from './ViewportDownloadForm.json';
 
 export default {
   'en-US': {
@@ -19,5 +20,6 @@ export default {
     MeasurementTable,
     StudyList,
     UserPreferencesModal,
+    ViewportDownloadForm,
   },
 };

platform/ui/CHANGELOG.md

@@ -3,6 +3,28 @@
 All notable changes to this project will be documented in this file.
 See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
 
+## [1.1.9](https://github.com/OHIF/Viewers/compare/@ohif/ui@1.1.8...@ohif/ui@1.1.9) (2020-01-30)
+
+
+### Bug Fixes
+
+* download tool fixes & improvements ([#1235](https://github.com/OHIF/Viewers/issues/1235)) ([b9574b6](https://github.com/OHIF/Viewers/commit/b9574b6efcfeb85cde35b5cae63282f8e1b35be6))
+
+
+
+
+
+## [1.1.8](https://github.com/OHIF/Viewers/compare/@ohif/ui@1.1.7...@ohif/ui@1.1.8) (2020-01-08)
+
+
+### Bug Fixes
+
+* measurements panel css and delete button visibility ([#1352](https://github.com/OHIF/Viewers/issues/1352)) ([7ab0bbb](https://github.com/OHIF/Viewers/commit/7ab0bbb32581dcba16ee16b49b92406e2856ac76))
+
+
+
+
+
 ## [1.1.7](https://github.com/OHIF/Viewers/compare/@ohif/ui@1.1.6...@ohif/ui@1.1.7) (2019-12-20)
 
 **Note:** Version bump only for package @ohif/ui

platform/ui/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@ohif/ui",
-  "version": "1.1.7",
+  "version": "1.1.9",
   "description": "A set of React components for Medical Imaging Viewers",
   "author": "OHIF Contributors",
   "license": "MIT",

platform/ui/src/components/content/viewportDownloadForm/ViewportDownloadForm.js

@@ -1,9 +1,16 @@
-import React, { useEffect, useState, createRef } from 'react';
+import React, {
+  useRef,
+  useCallback,
+  useEffect,
+  useState,
+  createRef,
+} from 'react';
 import PropTypes from 'prop-types';
 import { useTranslation } from 'react-i18next';
 
 import './ViewportDownloadForm.styl';
-import { TextInput, Select } from '@ohif/ui';
+import { TextInput, Select, Icon } from '@ohif/ui';
+import classnames from 'classnames';
 
 const FILE_TYPE_OPTIONS = [
   {
@@ -17,6 +24,7 @@ const FILE_TYPE_OPTIONS = [
 ];
 
 const DEFAULT_FILENAME = 'image';
+const REFRESH_VIEWPORT_TIMEOUT = 1000;
 
 const ViewportDownloadForm = ({
   activeViewport,
@@ -32,7 +40,7 @@ const ViewportDownloadForm = ({
   maximumSize,
   canvasClass,
 }) => {
-  const [t] = useTranslation('Buttons');
+  const [t] = useTranslation('ViewportDownloadForm');
 
   const [filename, setFilename] = useState(DEFAULT_FILENAME);
   const [fileType, setFileType] = useState('jpg');
@@ -44,6 +52,12 @@ const ViewportDownloadForm = ({
 
   const [showAnnotations, setShowAnnotations] = useState(true);
 
+  const [keepAspect, setKeepAspect] = useState(true);
+  const [aspectMultiplier, setAspectMultiplier] = useState({
+    width: 1,
+    height: 1,
+  });
+
   const [viewportElement, setViewportElement] = useState();
   const [viewportElementDimensions, setViewportElementDimensions] = useState({
     width: defaultSize,
@@ -62,41 +76,129 @@ const ViewportDownloadForm = ({
     height: defaultSize,
   });
 
-  // Cornerstone's `enable/disable`
-  useEffect(() => {
-    enableViewport(viewportElement);
+  const [error, setError] = useState({
+    width: false,
+    height: false,
+    filename: false,
+  });
 
-    return () => {
-      disableViewport(viewportElement);
-    };
-  }, [disableViewport, enableViewport, viewportElement]);
+  const hasError = Object.values(error).includes(true);
 
-  useEffect(() => {
-    const { width, height } = viewportElementDimensions;
-    const validSize = value => (value >= minimumSize ? value : minimumSize);
-    const loadAndUpdateViewports = async () => {
-      await loadImage(activeViewport, viewportElement, width, height);
-      toggleAnnotations(showAnnotations, viewportElement);
+  const refreshViewport = useRef(null);
 
-      const {
-        dataUrl,
-        width: viewportElementWidth,
-        height: viewportElementHeight,
-      } = await updateViewportPreview(
-        viewportElement,
-        downloadCanvas.ref.current,
-        fileType
+  const downloadImage = () => {
+    downloadBlob(
+      filename || DEFAULT_FILENAME,
+      fileType,
+      viewportElement,
+      downloadCanvas.ref.current
+    );
+  };
+
+  /**
+   * @param {object} event - Input change event
+   * @param {string} dimension - "height" | "width"
+   */
+  const onDimensionsChange = (event, dimension) => {
+    const oppositeDimension = dimension === 'height' ? 'width' : 'height';
+    const sanitizedTargetValue = event.target.value.replace(/\D/, '');
+    const isEmpty = sanitizedTargetValue === '';
+    const newDimensions = { ...dimensions };
+    const updatedDimension = isEmpty
+      ? ''
+      : Math.min(sanitizedTargetValue, maximumSize);
+
+    if (updatedDimension === dimensions[dimension]) {
+      return;
+    }
+
+    newDimensions[dimension] = updatedDimension;
+
+    if (keepAspect && newDimensions[oppositeDimension] !== '') {
+      newDimensions[oppositeDimension] = Math.round(
+        newDimensions[dimension] * aspectMultiplier[oppositeDimension]
       );
+    }
 
-      setViewportPreview(state => ({
+    // In current code, keepAspect is always `true`
+    // And we always start w/ a square width/height
+    setDimensions(newDimensions);
+
+    // Only update if value is non-empty
+    if (!isEmpty) {
+      setViewportElementDimensions(newDimensions);
+      setDownloadCanvas(state => ({
         ...state,
-        src: dataUrl,
-        width: validSize(viewportElementWidth),
-        height: validSize(viewportElementHeight),
+        ...newDimensions,
       }));
+    }
+  };
+
+  const error_messages = {
+    width: t('minWidthError'),
+    height: t('minHeightError'),
+    filename: t('emptyFilenameError'),
+  };
+
+  const renderErrorHandler = errorType => {
+    if (!error[errorType]) {
+      return null;
+    }
+
+    return <div className="input-error">{error_messages[errorType]}</div>;
+  };
+
+  const onKeepAspectToggle = () => {
+    const { width, height } = dimensions;
+    const aspectMultiplier = { ...aspectMultiplier };
+    if (!keepAspect) {
+      const base = Math.min(width, height);
+      aspectMultiplier.width = width / base;
+      aspectMultiplier.height = height / base;
+      setAspectMultiplier(aspectMultiplier);
+    }
+
+    setKeepAspect(!keepAspect);
+  };
+
+  const validSize = value => (value >= minimumSize ? value : minimumSize);
+  const loadAndUpdateViewports = useCallback(async () => {
+    const { width: scaledWidth, height: scaledHeight } = await loadImage(
+      activeViewport,
+      viewportElement,
+      dimensions.width,
+      dimensions.height
+    );
+
+    toggleAnnotations(showAnnotations, viewportElement);
+
+    const scaledDimensions = {
+      height: validSize(scaledHeight),
+      width: validSize(scaledWidth),
     };
 
-    loadAndUpdateViewports();
+    setViewportElementDimensions(scaledDimensions);
+    setDownloadCanvas(state => ({
+      ...state,
+      ...scaledDimensions,
+    }));
+
+    const {
+      dataUrl,
+      width: viewportElementWidth,
+      height: viewportElementHeight,
+    } = await updateViewportPreview(
+      viewportElement,
+      downloadCanvas.ref.current,
+      fileType
+    );
+
+    setViewportPreview(state => ({
+      ...state,
+      src: dataUrl,
+      width: validSize(viewportElementWidth),
+      height: validSize(viewportElementHeight),
+    }));
   }, [
     activeViewport,
     viewportElement,
@@ -111,76 +213,96 @@ const ViewportDownloadForm = ({
     viewportElementDimensions,
   ]);
 
-  /**
-   * @param {object} event - Input change event
-   * @param {string} dimension - "height" | "width"
-   */
-  const onDimensionsChange = (event, dimension) => {
-    const sanitizedTargetValue = event.target.value.replace(/\D/, '');
-    const isEmpty = sanitizedTargetValue === '';
-    const updatedDimension = isEmpty
-      ? ''
-      : Math.min(sanitizedTargetValue, maximumSize);
+  useEffect(() => {
+    enableViewport(viewportElement);
 
-    if (updatedDimension === dimensions.width) {
-      return;
+    return () => {
+      disableViewport(viewportElement);
+    };
+  }, [disableViewport, enableViewport, viewportElement]);
+
+  useEffect(() => {
+    if (refreshViewport.current !== null) {
+      clearTimeout(refreshViewport.current);
     }
 
-    // In current code, keepAspect is always `true`
-    // And we always start w/ a square width/height
-    setDimensions({
-      width: updatedDimension,
-      height: updatedDimension,
-    });
+    refreshViewport.current = setTimeout(() => {
+      refreshViewport.current = null;
+      loadAndUpdateViewports();
+    }, REFRESH_VIEWPORT_TIMEOUT);
+  }, [
+    activeViewport,
+    viewportElement,
+    showAnnotations,
+    dimensions,
+    loadImage,
+    toggleAnnotations,
+    updateViewportPreview,
+    fileType,
+    downloadCanvas.ref,
+    minimumSize,
+    maximumSize,
+  ]);
 
-    // Only update if value is non-empty
-    if (!isEmpty) {
-      setViewportElementDimensions({
-        height: updatedDimension,
-        width: updatedDimension,
-      });
-      setDownloadCanvas(state => ({
-        ...state,
-        height: updatedDimension,
-        width: updatedDimension,
-      }));
-    }
-  };
+  useEffect(() => {
+    const { width, height } = dimensions;
+    const hasError = {
+      width: width < minimumSize,
+      height: height < minimumSize,
+      filename: !filename,
+    };
 
-  const downloadImage = () => {
-    downloadBlob(
-      filename || DEFAULT_FILENAME,
-      fileType,
-      viewportElement,
-      downloadCanvas.ref.current
-    );
-  };
+    setError({ ...hasError });
+  }, [dimensions, filename, minimumSize]);
 
   return (
     <div className="ViewportDownloadForm">
-      <div className="title">
-        {t(
-          'Please specify the dimensions, filename, and desired type for the output image.'
-        )}
-      </div>
+      <div className="title">{t('formTitle')}</div>
 
       <div className="file-info-container" data-cy="file-info-container">
-        <div className="col">
-          <div className="width">
-            <TextInput
-              data-cy="image-width"
-              value={dimensions.width}
-              label={t('Image width (px)')}
-              onChange={evt => onDimensionsChange(evt, 'height')}
-            />
+        <div className="dimension-wrapper">
+          <div className="dimensions">
+            <div className="width">
+              <TextInput
+                type="number"
+                min={minimumSize}
+                max={maximumSize}
+                value={dimensions.width}
+                label={t('imageWidth')}
+                onChange={evt => onDimensionsChange(evt, 'width')}
+                data-cy="image-width"
+              />
+              {renderErrorHandler('width')}
+            </div>
+            <div className="height">
+              <TextInput
+                type="number"
+                min={minimumSize}
+                max={maximumSize}
+                value={dimensions.height}
+                label={t('imageHeight')}
+                onChange={evt => onDimensionsChange(evt, 'height')}
+                data-cy="image-height"
+              />
+              {renderErrorHandler('height')}
+            </div>
           </div>
-          <div className="height">
-            <TextInput
-              data-cy="image-height"
-              value={dimensions.height}
-              label={t('Image height (px)')}
-              onChange={evt => onDimensionsChange(evt, 'width')}
-            />
+          <div className="keep-aspect-wrapper">
+            <button
+              id="keep-aspect"
+              className={classnames(
+                'form-button btn',
+                keepAspect ? 'active' : ''
+              )}
+              data-cy="keep-aspect"
+              alt={t('keepAspectRatio')}
+              onClick={onKeepAspectToggle}
+            >
+              <Icon
+                name={keepAspect ? 'link' : 'unlink'}
+                alt={keepAspect ? 'Dismiss Aspect' : 'Keep Aspect'}
+              />
+            </button>
           </div>
         </div>
 
@@ -191,9 +313,10 @@ const ViewportDownloadForm = ({
               data-cy="file-name"
               value={filename}
               onChange={event => setFilename(event.target.value)}
-              label={t('File name')}
+              label={t('filename')}
               id="file-name"
             />
+            {renderErrorHandler('filename')}
           </div>
           <div className="file-type">
             <Select
@@ -201,7 +324,7 @@ const ViewportDownloadForm = ({
               data-cy="file-type"
               onChange={event => setFileType(event.target.value)}
               options={FILE_TYPE_OPTIONS}
-              label={t('File type')}
+              label={t('fileType')}
             />
           </div>
         </div>
@@ -217,7 +340,7 @@ const ViewportDownloadForm = ({
                 checked={showAnnotations}
                 onChange={event => setShowAnnotations(event.target.checked)}
               />
-              {t('Show Annotations')}
+              {t('showAnnotations')}
             </label>
           </div>
         </div>
@@ -245,15 +368,23 @@ const ViewportDownloadForm = ({
         ></canvas>
       </div>
 
-      <div className="preview" data-cy="image-preview">
-        <h4> {t('Image Preview')}</h4>
-        <img
-          className="viewport-preview"
-          src={viewportPreview.src}
-          alt="Viewport Preview"
-          data-cy="viewport-preview-img"
-        />
-      </div>
+      {viewportPreview.src ? (
+        <div className="preview" data-cy="image-preview">
+          <div className="preview-header"> {t('imagePreview')}</div>
+          <img
+            className="viewport-preview"
+            src={viewportPreview.src}
+            alt={t('imagePreview')}
+            data-cy="image-preview"
+            data-cy="viewport-preview-img"
+          />
+        </div>
+      ) : (
+        <div className="loading-image">
+          <Icon name="circle-notch" className="icon-spin" />
+          {t('loadingPreview')}
+        </div>
+      )}
 
       <div className="actions">
         <div className="action-cancel">
@@ -263,16 +394,17 @@ const ViewportDownloadForm = ({
             className="btn btn-danger"
             onClick={onClose}
           >
-            {t('Cancel')}
+            {t('Buttons:Cancel')}
           </button>
         </div>
         <div className="action-save">
           <button
+            disabled={hasError}
             onClick={downloadImage}
             className="btn btn-primary"
             data-cy="download-btn"
           >
-            {t('Download')}
+            {t('Buttons:Download')}
           </button>
         </div>
       </div>

platform/ui/src/components/content/viewportDownloadForm/ViewportDownloadForm.styl

@@ -10,6 +10,9 @@
   input, select
     max-height: 30px;
 
+  #keep-aspect svg
+    margin-top: 3px;
+
   .title
     margin: 0;
     font-weight: bold;
@@ -17,85 +20,117 @@
   .file-info-container
     display: flex;
     flex-direction: row;
+    justify-content: space-around;
     margin: 20px 0;
     border-radius: 5px;
-    padding: 20px 10px 0;
-    background-color: #16202b;
-
-    .form-control.input-ohif
-      padding: 6px 12px;
+    padding: 20px 10px;
+    background-color: var(--ui-gray-dark);
 
     @media screen and (max-width: 1023px)
       flex-direction: column;
+      align-items: flex-start;
 
-    .col
-      flex-grow: 1;
+    .width,
+    .height,
+    .file-name,
+    .file-type
+      height: 56px;
 
-      .input-ohif
-        margin-left: 15px;
+    .input-ohif
+      margin: 0 5px;
+
+    .file-name,
+    .file-type
+      .select-ohif, .input-ohif
+        width: 170px;
+
+      .input-ohif-label, .select-ohif-label
+        width: 90px;
+        display: inline-block;
         @media screen and (max-width: 1023px)
-          margin-left: 0;
-          margin-top: 5px;
-          width: 100%;
+          width: 120px;
 
-      .file-type
-        .select-ohif
-          margin-left: 17px;
+    .dimension-wrapper
+      display: flex;
+      flex-direction: row;
+
+      .dimensions
+        display: flex;
+        flex-direction: column;
+
+        .input-ohif-label
+          width: 120px;
+          display: inline-block;
+
+        .input-ohif
           @media screen and (max-width: 1023px)
-            margin-left: 0;
-            width: 100%;
+            width: 170px;
 
-      .show-annotations
-        font-weight: bold;
-        line-height: 30px;
-        input
-          margin-right: 7px;
-          vertical-align: middle;
-        label
-          display: flex;
-          justify-content: center;
-          align-items: center;
+      .keep-aspect-wrapper
+        display: flex;
+        justify-content: center;
+        align-items: center;
+        padding: 0 10px;
+        height: 86px;
+
+    .show-annotations
+      font-weight: bold;
+      line-height: 30px;
+      input
+        margin-right: 7px;
+        vertical-align: middle;
+      label
+        display: flex;
+        justify-content: center;
+        align-items: center;
+
+  .loading-image
+    height: 580px;
+    display: flex;
+    justify-content: center;
+    align-items: center;
+    color: var(--active-color);
+    font-size: 20px;
+
+    .icon-spin
+      margin-right: 15px;
 
   .preview
     display: flex;
-    flex-direction column;
-    height: fit-content;
-    background-color: #16202b;
-    width: fit-content;
+    flex-direction: column;
+    background-color: var(--ui-gray-dark);
     padding: 10px;
     border-radius: 5px;
-    align-self: center;
-    margin-bottom: 20px;
-    @media screen and (max-width: 1023px)
-      width: 100%;
-      justify-content: center;
-      align-items: center;
+    justify-content: flex-start;
+    align-items: center;
+    height: 580px;
 
     .viewport-preview
       max-height: 512px;
       max-width: 512px;
 
-    h4
+    .preview-header
       width: 100%;
       text-align center;
       font-size: 1.3em;
       margin: 0 0 10px;
 
-    .preview-container
-      width: auto;
-      height: 100%;
-      max-height: 400px;
-      object-fit contain;
-
   .actions
     display: flex;
     flex-wrap: nowrap;
     justify-content: flex-end;
     align-items: center;
-    .action-cancel
-      margin: 0 20px;
-    .actions-save
-      margin: 0 0 0 10px;
+    margin-top: 20px;
+
+    .btn
+      margin: 0 10px;
+
+  .input-error
+    font-size: 12px;
+    color: red;
+    text-align: center;
+    margin: 3px 0;
+
 
 .modal-dialog
   height: 100%;

platform/ui/src/components/measurementTable/MeasurementTableItem.styl

@@ -1,5 +1,6 @@
 .measurementItem
   .rowActions
+      margin-left: -1px;
       background-color: var(--ui-gray-darker)
       height: 0
       overflow: hidden
@@ -28,7 +29,6 @@
       visibility: visible
 
   .measurementLocation
-    margin-left: 9px;
     margin-top: 9px;
     overflow: hidden;
     max-width: calc(100% - 50px);
@@ -39,7 +39,6 @@
   .measurementDisplayText
     display: inline-block;
     margin-top: 9px;
-    margin-left: 9px;
     padding-left: 9px;
     width: 90px;
     border-left: 1px solid var(--text-secondary-color);

platform/ui/src/components/tableList/TableListItem.js

@@ -10,7 +10,10 @@ export class TableListItem extends Component {
     children: PropTypes.node,
     itemClass: PropTypes.string,
     itemIndex: PropTypes.number,
-    itemKey: PropTypes.oneOfType(['number', 'string']),
+    itemKey: PropTypes.oneOfType([
+      PropTypes.string,
+      PropTypes.number,
+    ]),
     onItemClick: PropTypes.func.isRequired,
   };
 

platform/ui/src/components/tableList/TableListItem.styl

@@ -28,7 +28,7 @@
     transition(all 0.3s ease)
     font-size: 14px
     font-weight: 400
-    margin-right: 5px
+    margin-right: 6px
     padding: 10px
     text-align: center
     -webkit-box-sizing: initial;
@@ -38,9 +38,8 @@
   .itemContent
     flex: 1
     color: var(--text-secondary-color)
-    width: calc(100% - 30px);
+    width: calc(100% - 51px);
     font-weight: 400
-    margin-left: 9px;
     margin-top: 9px;
 
   .warning-icon

platform/ui/src/elements/Icon/Icon.styl

@@ -1,6 +1,10 @@
 .icon-pulse
   fa-spin 1s infinite steps(8)
 
+.icon-spin {
+  animation: spin 2s linear infinite;
+}
+
 @keyframes fa-spin{
   0%{ transform:rotate(0deg) }
   to{ transform:rotate(1turn) }

platform/ui/src/elements/Icon/getIcon.js

@@ -80,6 +80,7 @@ import thLarge from './icons/th-large.svg';
 import thList from './icons/th-list.svg';
 import times from './icons/times.svg';
 import trash from './icons/trash.svg';
+import unlink from './icons/unlink.svg';
 import user from './icons/user.svg';
 import youtube from './icons/youtube.svg';
 
@@ -158,6 +159,7 @@ const ICONS = {
   rotate,
   'rotate-right': rotateRight,
   trash,
+  unlink,
   'exclamation-circle': exclamationCircle,
   link,
   'exclamation-triangle': exclamationTriangle,

platform/ui/src/elements/Icon/icons/unlink.svg

@@ -0,0 +1,11 @@
+<svg
+  xmlns="http://www.w3.org/2000/svg"
+  aria-labelledby="unlink"
+  viewBox="0 0 512 512"
+  width="1em"
+  height="1em"
+  fill="currentColor"
+>
+  <title id="title">Unlink</title>
+  <path d="M304.083 388.936c4.686 4.686 4.686 12.284 0 16.971l-65.057 65.056c-54.709 54.711-143.27 54.721-197.989 0-54.713-54.713-54.719-143.27 0-197.989l65.056-65.057c4.686-4.686 12.284-4.686 16.971 0l22.627 22.627c4.686 4.686 4.686 12.284 0 16.971L81.386 311.82c-34.341 34.341-33.451 88.269.597 120.866 32.577 31.187 84.788 31.337 117.445-1.32l65.057-65.056c4.686-4.686 12.284-4.686 16.971 0l22.627 22.626zm-56.568-243.245l64.304-64.304c34.346-34.346 88.286-33.453 120.882.612 31.18 32.586 31.309 84.785-1.335 117.43l-65.056 65.057c-4.686 4.686-4.686 12.284 0 16.971l22.627 22.627c4.686 4.686 12.284 4.686 16.971 0l65.056-65.057c54.711-54.709 54.721-143.271 0-197.99-54.71-54.711-143.27-54.72-197.989 0l-65.057 65.057c-4.686 4.686-4.686 12.284 0 16.971l22.627 22.627c4.685 4.685 12.283 4.685 16.97-.001zm238.343 362.794l22.627-22.627c4.686-4.686 4.686-12.284 0-16.971L43.112 3.515c-4.686-4.686-12.284-4.686-16.971 0L3.515 26.142c-4.686 4.686-4.686 12.284 0 16.971l465.373 465.373c4.686 4.686 12.284 4.686 16.97-.001z"></path>
+</svg>

platform/ui/src/elements/form/Select.js

@@ -29,18 +29,18 @@ class Select extends Component {
   render() {
     return (
       <div className="select-ohif-container">
-        <label className="select-ohif-label" htmlFor={this.id}>
-          {this.props.label}
-          <select className="form-control select-ohif" {...this.props}>
-            {this.props.options.map(({ key, value }) => {
-              return (
-                <option key={key} value={value}>
-                  {key}
-                </option>
-              );
-            })}
-          </select>
-        </label>
+        {this.props.label && (
+          <label className="select-ohif-label" htmlFor={this.id}>{this.props.label}</label>
+        )}
+        <select className="form-control select-ohif" {...this.props}>
+          {this.props.options.map(({ key, value }) => {
+            return (
+              <option key={key} value={value}>
+                {key}
+              </option>
+            );
+          })}
+        </select>
       </div>
     );
   }

platform/ui/src/elements/form/TextInput.js

@@ -14,7 +14,7 @@ class TextInput extends React.Component {
       PropTypes.number
     ]),
     id: PropTypes.string,
-    label:PropTypes.string,
+    label: PropTypes.string,
     type: PropTypes.string,
   };
 
@@ -28,15 +28,15 @@ class TextInput extends React.Component {
   render() {
     return (
       <div className="input-ohif-container">
-        <label className="input-ohif-label" htmlFor={this.props.id}>
-          {this.props.label}
-          <input
-            type={this.props.type}
-            id={this.props.id}
-            className="form-control input-ohif"
-            {...this.props}
-          />
-        </label>
+        {this.props.label && (
+          <label className="input-ohif-label" htmlFor={this.props.id}>{this.props.label}</label>
+        )}
+        <input
+          type={this.props.type}
+          id={this.props.id}
+          className="form-control input-ohif"
+          {...this.props}
+        />
       </div>
     );
   }

platform/viewer/.webpack/webpack.pwa.js

@@ -10,7 +10,6 @@ const BundleAnalyzerPlugin = require('webpack-bundle-analyzer')
 const { CleanWebpackPlugin } = require('clean-webpack-plugin');
 const CopyWebpackPlugin = require('copy-webpack-plugin');
 const ExtractCssChunksPlugin = require('extract-css-chunks-webpack-plugin');
-// const FaviconsWebpackPlugin = require('favicons-webpack-plugin');
 const HtmlWebpackPlugin = require('html-webpack-plugin');
 const { InjectManifest } = require('workbox-webpack-plugin');
 const TerserJSPlugin = require('terser-webpack-plugin');
@@ -27,6 +26,7 @@ const PUBLIC_URL = process.env.PUBLIC_URL || '/';
 const APP_CONFIG = process.env.APP_CONFIG || 'config/default.js';
 const PROXY_TARGET = process.env.PROXY_TARGET;
 const PROXY_DOMAIN = process.env.PROXY_DOMAIN;
+const ENTRY_TARGET = process.env.ENTRY_TARGET || `${SRC_DIR}/index.js`;
 
 module.exports = (env, argv) => {
   const baseConfig = webpackBase(env, argv, { SRC_DIR, DIST_DIR });
@@ -34,6 +34,9 @@ module.exports = (env, argv) => {
   const hasProxy = PROXY_TARGET && PROXY_DOMAIN;
 
   const mergedConfig = merge(baseConfig, {
+    entry: {
+      app: ENTRY_TARGET,
+    },
     output: {
       path: DIST_DIR,
       filename: isProdBuild ? '[name].bundle.[chunkhash].js' : '[name].js',

platform/viewer/CHANGELOG.md

@@ -3,6 +3,189 @@
 All notable changes to this project will be documented in this file.
 See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
 
+# [3.6.0](https://github.com/OHIF/Viewers/compare/@ohif/viewer@3.5.1...@ohif/viewer@3.6.0) (2020-02-10)
+
+
+### Features
+
+* 🎸 MeasurementService ([#1314](https://github.com/OHIF/Viewers/issues/1314)) ([0c37a40](https://github.com/OHIF/Viewers/commit/0c37a406d963569af8c3be24c697dafd42712dfc))
+
+
+
+
+
+## [3.5.1](https://github.com/OHIF/Viewers/compare/@ohif/viewer@3.5.0...@ohif/viewer@3.5.1) (2020-02-07)
+
+**Note:** Version bump only for package @ohif/viewer
+
+
+
+
+
+# [3.5.0](https://github.com/OHIF/Viewers/compare/@ohif/viewer@3.4.14...@ohif/viewer@3.5.0) (2020-02-06)
+
+
+### Features
+
+* lesion-tracker extension ([#1420](https://github.com/OHIF/Viewers/issues/1420)) ([73e4409](https://github.com/OHIF/Viewers/commit/73e440968ce4699d081a9c9f2d21dd68095b3056))
+
+
+
+
+
+## [3.4.14](https://github.com/OHIF/Viewers/compare/@ohif/viewer@3.4.13...@ohif/viewer@3.4.14) (2020-02-06)
+
+**Note:** Version bump only for package @ohif/viewer
+
+
+
+
+
+## [3.4.13](https://github.com/OHIF/Viewers/compare/@ohif/viewer@3.4.12...@ohif/viewer@3.4.13) (2020-01-30)
+
+**Note:** Version bump only for package @ohif/viewer
+
+
+
+
+
+## [3.4.12](https://github.com/OHIF/Viewers/compare/@ohif/viewer@3.4.11...@ohif/viewer@3.4.12) (2020-01-30)
+
+**Note:** Version bump only for package @ohif/viewer
+
+
+
+
+
+## [3.4.11](https://github.com/OHIF/Viewers/compare/@ohif/viewer@3.4.10...@ohif/viewer@3.4.11) (2020-01-30)
+
+
+### Bug Fixes
+
+* download tool fixes & improvements ([#1235](https://github.com/OHIF/Viewers/issues/1235)) ([b9574b6](https://github.com/OHIF/Viewers/commit/b9574b6efcfeb85cde35b5cae63282f8e1b35be6))
+
+
+
+
+
+## [3.4.10](https://github.com/OHIF/Viewers/compare/@ohif/viewer@3.4.9...@ohif/viewer@3.4.10) (2020-01-28)
+
+**Note:** Version bump only for package @ohif/viewer
+
+
+
+
+
+## [3.4.9](https://github.com/OHIF/Viewers/compare/@ohif/viewer@3.4.8...@ohif/viewer@3.4.9) (2020-01-28)
+
+**Note:** Version bump only for package @ohif/viewer
+
+
+
+
+
+## [3.4.8](https://github.com/OHIF/Viewers/compare/@ohif/viewer@3.4.7...@ohif/viewer@3.4.8) (2020-01-28)
+
+**Note:** Version bump only for package @ohif/viewer
+
+
+
+
+
+## [3.4.7](https://github.com/OHIF/Viewers/compare/@ohif/viewer@3.4.6...@ohif/viewer@3.4.7) (2020-01-28)
+
+**Note:** Version bump only for package @ohif/viewer
+
+
+
+
+
+## [3.4.6](https://github.com/OHIF/Viewers/compare/@ohif/viewer@3.4.5...@ohif/viewer@3.4.6) (2020-01-28)
+
+**Note:** Version bump only for package @ohif/viewer
+
+
+
+
+
+## [3.4.5](https://github.com/OHIF/Viewers/compare/@ohif/viewer@3.4.4...@ohif/viewer@3.4.5) (2020-01-27)
+
+**Note:** Version bump only for package @ohif/viewer
+
+
+
+
+
+## [3.4.4](https://github.com/OHIF/Viewers/compare/@ohif/viewer@3.4.3...@ohif/viewer@3.4.4) (2020-01-27)
+
+**Note:** Version bump only for package @ohif/viewer
+
+
+
+
+
+## [3.4.3](https://github.com/OHIF/Viewers/compare/@ohif/viewer@3.4.2...@ohif/viewer@3.4.3) (2020-01-24)
+
+**Note:** Version bump only for package @ohif/viewer
+
+
+
+
+
+## [3.4.2](https://github.com/OHIF/Viewers/compare/@ohif/viewer@3.4.1...@ohif/viewer@3.4.2) (2020-01-17)
+
+**Note:** Version bump only for package @ohif/viewer
+
+
+
+
+
+## [3.4.1](https://github.com/OHIF/Viewers/compare/@ohif/viewer@3.4.0...@ohif/viewer@3.4.1) (2020-01-15)
+
+
+### Bug Fixes
+
+* 🐛 Metadata is being mistakenly purged ([#1360](https://github.com/OHIF/Viewers/issues/1360)) ([b9a66d4](https://github.com/OHIF/Viewers/commit/b9a66d44241f2896ef184511287fb4984671e16d)), closes [#1326](https://github.com/OHIF/Viewers/issues/1326)
+
+
+
+
+
+# [3.4.0](https://github.com/OHIF/Viewers/compare/@ohif/viewer@3.3.8...@ohif/viewer@3.4.0) (2020-01-14)
+
+
+### Features
+
+* Custom Healthcare API endpoint ([#1367](https://github.com/OHIF/Viewers/issues/1367)) ([a5d6bc6](https://github.com/OHIF/Viewers/commit/a5d6bc6a51784ed3a8a40d4ae773de9099f116b9))
+
+
+
+
+
+## [3.3.8](https://github.com/OHIF/Viewers/compare/@ohif/viewer@3.3.7...@ohif/viewer@3.3.8) (2020-01-10)
+
+**Note:** Version bump only for package @ohif/viewer
+
+
+
+
+
+## [3.3.7](https://github.com/OHIF/Viewers/compare/@ohif/viewer@3.3.6...@ohif/viewer@3.3.7) (2020-01-08)
+
+**Note:** Version bump only for package @ohif/viewer
+
+
+
+
+
+## [3.3.6](https://github.com/OHIF/Viewers/compare/@ohif/viewer@3.3.5...@ohif/viewer@3.3.6) (2020-01-07)
+
+**Note:** Version bump only for package @ohif/viewer
+
+
+
+
+
 ## [3.3.5](https://github.com/OHIF/Viewers/compare/@ohif/viewer@3.3.4...@ohif/viewer@3.3.5) (2020-01-06)
 
 **Note:** Version bump only for package @ohif/viewer

platform/viewer/cypress.json

@@ -5,5 +5,6 @@
   "defaultCommandTimeout": 10000,
   "requestTimeout": 10000,
   "responseTimeout": 10000,
-  "projectId": "4oe38f"
+  "projectId": "4oe38f",
+  "video": false
 }

platform/viewer/cypress/integration/common/OHIFCornerstoneHotkeys.spec.js

@@ -47,7 +47,6 @@ describe('OHIF Cornerstone Hotkeys', () => {
     cy.get('body').type('I');
     // Visual comparison
     cy.screenshot('Hotkey I - Should Invert Image');
-    cy.percyCanvasSnapshot('Hotkey I - Should Invert Image');
   });
 
   it('checks if hotkeys "+", "-" and "=" can zoom in, out and fit to viewport', () => {
@@ -77,7 +76,6 @@ describe('OHIF Cornerstone Hotkeys', () => {
 
     // Visual comparison to make sure the 'inverted' image was reset
     cy.screenshot('Hotkey SPACEBAR - Should Reset Image');
-    cy.percyCanvasSnapshot('Hotkey SPACEBAR - Should Reset Image');
   });
 
   it('uses hotkeys "RightArrow" and "LeftArrow" to navigate between multiple viewports', () => {

platform/viewer/cypress/integration/common/OHIFCornerstoneToolbar.spec.js

@@ -119,7 +119,6 @@ describe('OHIF Cornerstone Toolbar', () => {
 
     // Visual comparison
     cy.screenshot('Pan tool moved the image inside the viewport');
-    cy.percyCanvasSnapshot('Pan tool moved the image inside the viewport');
   });
 
   it('checks if Length annotation can be added on viewport and on measurements panel', () => {
@@ -471,7 +470,6 @@ describe('OHIF Cornerstone Toolbar', () => {
 
     // Visual comparison
     cy.screenshot('Invert tool - Should Invert Canvas');
-    cy.percyCanvasSnapshot('Invert tool - Should Invert Canvas');
   });
 
   it('check if Rotate tool will change the image orientation in the viewport', () => {
@@ -487,7 +485,6 @@ describe('OHIF Cornerstone Toolbar', () => {
 
     // Visual comparison
     cy.screenshot('Rotate tool - Should Rotate Image to Right');
-    cy.percyCanvasSnapshot('Rotate tool - Should Rotate Image to Right');
   });
 
   it('check if Flip H tool will flip the image horizontally in the viewport', () => {
@@ -501,7 +498,6 @@ describe('OHIF Cornerstone Toolbar', () => {
 
     // Visual comparison
     cy.screenshot('Flip H tool - Should Flip Image on Y axis');
-    cy.percyCanvasSnapshot('Flip H tool - Should Flip Image on Y axis');
   });
 
   it('check if Flip V tool will flip the image vertically in the viewport', () => {
@@ -515,6 +511,5 @@ describe('OHIF Cornerstone Toolbar', () => {
 
     // Visual comparison
     cy.screenshot('Flip V tool - Should Flip Image on X axis');
-    cy.percyCanvasSnapshot('Flip V tool - Should Flip Image on X axis');
   });
 });

platform/viewer/cypress/integration/common/OHIFDownloadSnapshotFile.spec.js

@@ -16,20 +16,18 @@ describe('OHIF Download Snapshot File', () => {
       .click();
   });
 
-  it('checks displayed information for Tablet experience', function() {
+  it('checks displayed information for Tablet experience', function () {
     // Set Tablet resolution
     cy.viewport(1000, 660);
     // Visual comparison
     cy.screenshot('Download Image Modal - Tablet experience');
-    cy.percyCanvasSnapshot('Download Image Modal - Tablet experience');
   });
 
-  it('checks displayed information for Desktop experience', function() {
+  it('checks displayed information for Desktop experience', function () {
     // Set Desktop resolution
     cy.viewport(1750, 720);
     // Visual comparison
     cy.screenshot('Download Image Modal - Desktop experience');
-    cy.percyCanvasSnapshot('Download Image Modal - Desktop experience');
     //Check if all elements are displayed
     cy.get('[data-cy=modal-header]')
       .as('downloadImageModal')
@@ -54,7 +52,7 @@ describe('OHIF Download Snapshot File', () => {
       .should('be.visible');
   });
 
-  it('cancel changes on download modal', function() {
+  it('cancel changes on download modal', function () {
     //Change Image Width, Filename and File Type
     cy.get('[data-cy="image-width"]')
       .clear()
@@ -93,7 +91,7 @@ describe('OHIF Download Snapshot File', () => {
   //   //Check error message
   // });
 
-  it('checks if "Show Annotations" checkbox will display annotations', function() {
+  it('checks if "Show Annotations" checkbox will display annotations', function () {
     // Close modal that is initially opened
     cy.get('[data-cy="close-button"]').click();
 
@@ -109,7 +107,6 @@ describe('OHIF Download Snapshot File', () => {
     cy.get('[data-cy="image-preview"]').scrollIntoView();
     // Visual comparison
     cy.screenshot('Download Image Modal - Show Annotations checked');
-    cy.percyCanvasSnapshot('Download Image Modal - Show Annotations checked');
     //Compare classes that exists on Image Preview with Annotations and Without Annotation
     cy.get('[data-cy="modal-content"]')
       .find('canvas')

platform/viewer/cypress/integration/common/OHIFLoadLocalFile.spec.js

@@ -0,0 +1,31 @@
+describe('OHIF Load Local File', () => {
+  beforeEach(() => {
+    cy.visit('/local');
+  });
+
+  it('checks if user can navigate to /local', () => {
+    cy.get('.drag-drop-contents').should(
+      'contain',
+      'Drag and Drop DICOM files here to load them in the Viewer'
+    );
+  });
+
+  it('loads an invalid file and verify if viewer is empty', () => {
+    const fileName = 'example.json';
+
+    cy.fixture(fileName).then(fileContent => {
+      cy.get('input[type=file]')
+        .first()
+        .upload({
+          fileContent,
+          fileName,
+          mimeType: 'application/json',
+        });
+    });
+
+    //Verify if there is no thumbnail visible
+    cy.expectMinimumThumbnails(0);
+    //Verify if DOC thumnails is displayed and load it on viewport
+    cy.get('[data-cy="thumbnail-list"]').should('not.exist');
+  });
+});

platform/viewer/cypress/integration/common/OHIFRoutes.spec.js

@@ -6,7 +6,9 @@ describe('OHIF Routes', function() {
   });
 
   it('checks PT/CT json url study route', function() {
-    cy.visit('/viewer?url=https://s3.eu-central-1.amazonaws.com/ohif-viewer/JSON/PTCTStudy.json');
+    cy.visit(
+      '/viewer?url=https://s3.eu-central-1.amazonaws.com/ohif-viewer/JSON/PTCTStudy.json'
+    );
 
     cy.server();
     cy.route('GET', '**/PTCTStudy/**').as('getPTCTStudy');
@@ -15,8 +17,5 @@ describe('OHIF Routes', function() {
     cy.get('@getPTCTStudy').should($route => {
       expect($route.status).to.be.eq(200);
     });
-
-    cy.screenshot();
-    cy.percyCanvasSnapshot('PT/CT json study route');
   });
 });

platform/viewer/cypress/integration/common/OHIFStandaloneViewer.spec.js

@@ -4,9 +4,6 @@ describe('OHIFStandaloneViewer', () => {
   });
 
   it('loads route with at least 2 rows', () => {
-    cy.screenshot('Study List');
-    cy.percyCanvasSnapshot('Study List');
-
     cy.get('[data-cy="study-list-results"] tr')
       .its('length')
       .should('be.gt', 2);

platform/viewer/cypress/integration/common/OHIFStudyList.spec.js

@@ -43,7 +43,7 @@ describe('OHIF Study List', function() {
       //Wait result list to be displayed
       cy.waitStudyList();
       cy.get('@searchResult').should($list => {
-        expect($list.length).to.be.eq(17);
+        expect($list.length).to.be.eq(16);
         expect($list).to.contain('MR');
       });
     });
@@ -132,7 +132,7 @@ describe('OHIF Study List', function() {
       //Wait result list to be displayed
       cy.waitStudyList();
       cy.get('@searchResult').should($list => {
-        expect($list.length).to.be.eq(17);
+        expect($list.length).to.be.eq(16);
         expect($list).to.contain('MR');
       });
     });

platform/viewer/cypress/integration/common/OHIFStudyViewer.spec.js

@@ -12,7 +12,6 @@ describe('OHIF Study Viewer Page', function() {
 
   it('checks if series thumbnails are being displayed', function() {
     cy.screenshot('Series Thumbnails - Should Display Thumbnails');
-    cy.percyCanvasSnapshot('Series Thumbnails - Should Display Thumbnails');
 
     cy.get('[data-cy="thumbnail-list"]')
       .its('length')
@@ -293,7 +292,6 @@ describe('OHIF Study Viewer Page', function() {
 
     // Visual comparison
     cy.screenshot('About modal - Should display modal');
-    cy.percyCanvasSnapshot('About modal - Should display modal');
 
     //close modal
     cy.get('[data-cy="close-button"]').click();

platform/viewer/cypress/integration/common/OHIFUserPreferences.spec.js

@@ -24,10 +24,7 @@ describe('OHIF User Preferences', () => {
 
       // Visual comparison
       cy.screenshot(
-        'User Preferences Modal - Hotkeys tab initial state in Study Viewer page'
-      );
-      cy.percyCanvasSnapshot(
-        'User Preferences Modal - Hotkeys tab initial state in Study Viewer page'
+        'User Preferences Modal - Hotkeys tab initial state in Study List page'
       );
       cy.get('[data-cy="close-button"]').click();
     });
@@ -42,16 +39,10 @@ describe('OHIF User Preferences', () => {
 
       // Visual comparison
       cy.screenshot(
-        'User Preferences Modal - General tab initial state in Study Viewer page'
+        'User Preferences Modal - General tab initial state in Study List page'
       );
-      cy.percyCanvasSnapshot(
-        'User Preferences Modal - General tab initial state in Study Viewer page'
-      );
-      // Select Spanish and Save
-      cy.get('#language-select').select('Spanish');
-      cy.get('@saveBtn')
-        .scrollIntoView()
-        .click();
+      // Set language to Spanish and save
+      cy.setLanguage('Spanish');
 
       // Header should be translated to Spanish
       cy.get('.research-use')
@@ -161,11 +152,8 @@ describe('OHIF User Preferences', () => {
       // Go to General tab
       cy.get('@userPreferencesGeneralTab').click();
 
-      // Select Spanish and Save
-      cy.get('#language-select').select('Spanish');
-      cy.get('@saveBtn')
-        .scrollIntoView()
-        .click();
+      // Set language to Spanish
+      cy.setLanguage('Spanish');
 
       // Go to Study Viewer page
       cy.openStudy('MISTER^MR');
@@ -191,7 +179,9 @@ describe('OHIF User Preferences', () => {
         .should('contain.text', 'Preferencias');
 
       // Check if new hotkey is working on viewport
-      cy.get('body').type('{shift}Q', { release: false });
+      cy.get('body').type('{shift}Q', {
+        release: false,
+      });
       cy.get('@viewportInfoMidTop').should('contains.text', 'R');
     });
   });
@@ -225,10 +215,7 @@ describe('OHIF User Preferences', () => {
 
       // Visual comparison
       cy.screenshot(
-        'User Preferences Modal - Hotkeys tab initial state in Study List page'
-      );
-      cy.percyCanvasSnapshot(
-        'User Preferences Modal - Hotkeys tab initial state in Study List page'
+        'User Preferences Modal - Hotkeys tab initial state in Study Viewer page'
       );
       cy.get('[data-cy="close-button"]').click(); //close User Preferences modal
     });
@@ -243,16 +230,10 @@ describe('OHIF User Preferences', () => {
 
       // Visual comparison
       cy.screenshot(
-        'User Preferences Modal - General tab initial state in Study List page'
+        'User Preferences Modal - General tab initial state in Study Viewer page'
       );
-      cy.percyCanvasSnapshot(
-        'User Preferences Modal - General tab initial state in Study List page'
-      );
-      // Select Spanish and Save
-      cy.get('#language-select').select('Spanish');
-      cy.get('@saveBtn')
-        .scrollIntoView()
-        .click();
+      // Set language to Spanish
+      cy.setLanguage('Spanish');
 
       // Header should be translated to Spanish
       cy.get('.research-use')
@@ -310,19 +291,11 @@ describe('OHIF User Preferences', () => {
       // Language dropdown should be displayed
       cy.get('#language-select').should('be.visible');
 
-      // Select Spanish and Save
-      cy.get('#language-select').select('Spanish');
-      cy.get('@saveBtn')
-        .scrollIntoView()
-        .click();
+      // Set language to Spanish
+      cy.setLanguage('Spanish');
 
-      //Open Preferences again
-      cy.get('[data-cy="options-menu"]')
-        .scrollIntoView()
-        .click();
-      cy.get('[data-cy="dd-item-menu"]')
-        .last()
-        .click();
+      // Open User Preferences modal
+      cy.openPreferences();
 
       // Go to general tab
       cy.get('@userPreferencesGeneralTab').click();
@@ -437,9 +410,7 @@ describe('OHIF User Preferences', () => {
 
       // Visual comparison
       cy.screenshot('Viewport Navigation - 2nd viewport inverted and rotated');
-      cy.percyCanvasSnapshot(
-        'Viewport Navigation - 2nd viewport inverted and rotated'
-      );
+
       // Set 1 viewport layout
       cy.setLayout(1, 1);
     });

platform/viewer/cypress/integration/pwa/OHIFExtensionMicroscopy.spec.js

@@ -23,8 +23,5 @@ describe('OHIF Microscopy Extension', () => {
     cy.wait(3000); //Waiting for image to render before taking the snapshot
     // Visual comparison
     cy.screenshot('Microscopy Extension - Should display loaded canvas');
-    cy.percyCanvasSnapshot(
-      'Microscopy Extension - Should display loaded canvas'
-    );
   });
 });

platform/viewer/cypress/integration/pwa/OHIFExtensionPDF.spec.js

@@ -23,6 +23,5 @@ describe('OHIF PDF Extension', () => {
     // This won't work unless we switch to an extension that renders using `canvas`
     // Currently, we rely on the browser's built-in implementation
     cy.screenshot('PDF Extension - Should load PDF file');
-    cy.percyCanvasSnapshot('PDF Extension - Should load PDF file');
   });
 });

platform/viewer/cypress/integration/pwa/OHIFExtensionVTK.spec.js

@@ -57,9 +57,6 @@ describe('OHIF VTK Extension', () => {
 
     // Visual comparison
     cy.screenshot('VTK initial state - Should display toolbar and 3 viewports');
-    cy.percyCanvasSnapshot(
-      'VTK initial state - Should display toolbar and 3 viewports'
-    );
   });
 
   it('checks Crosshairs tool', () => {
@@ -75,9 +72,6 @@ describe('OHIF VTK Extension', () => {
     cy.screenshot(
       "VTK Crosshairs tool - Should display crosshairs' green lines"
     );
-    cy.percyCanvasSnapshot(
-      "VTK Crosshairs tool - Should display crosshairs' green lines"
-    );
   });
 
   /* TODO: Non-deterministic behavior (const expectedText = 'W: 350 L: -1044';)
@@ -101,7 +95,6 @@ describe('OHIF VTK Extension', () => {
 
     // Visual comparison
     cy.screenshot('VTK WWWC tool - Canvas should be bright');
-    cy.percyCanvasSnapshot('VTK WWWC tool - Canvas should be bright');
   }); */
 
   it('checks Rotate tool', () => {
@@ -117,6 +110,5 @@ describe('OHIF VTK Extension', () => {
 
     // Visual comparison
     cy.screenshot('VTK Rotate tool - Should rotate image');
-    cy.percyCanvasSnapshot('VTK Rotate tool - Should rotate image');
   });
 });

platform/viewer/cypress/integration/pwa/OHIFLoadLocalPDFFile.spec.js

@@ -0,0 +1,29 @@
+describe('OHIF Load Local PDF File', () => {
+  beforeEach(() => {
+    cy.visit('/local');
+  });
+
+  it('loads a PDF DICOM file and visualize it', () => {
+    const fileName = 'PDFDICOMfile.pdf';
+
+    cy.fixture(fileName).then(fileContent => {
+      cy.get('input[type=file]')
+        .first()
+        .upload({
+          fileContent,
+          fileName,
+          mimeType: 'application/pdf',
+        });
+    });
+
+    //Verify if 1 thumbnail is visible
+    cy.expectMinimumThumbnails(1);
+    //Verify if DOC thumnails is displayed and load it on viewport
+    cy.get('[data-cy="thumbnail-list"]')
+      .contains('DOC')
+      .click({ force: true });
+
+    //Verify if PDF document is displayed on the viewport
+    cy.get('#pdf-canvas-container').should('be.visible');
+  });
+});

platform/viewer/cypress/integration/pwa/OHIFSaveMeasurements.spec.js

@@ -1,15 +1,11 @@
 describe('OHIF Save Measurements', function() {
   before(() => {
-    cy.openStudy('Fall 1');
-    cy.expectMinimumThumbnails(2);
+    cy.openStudy('MISTER^MR');
+    cy.waitDicomImage();
+    cy.expectMinimumThumbnails(5);
   });
 
   beforeEach(() => {
-    // Drags Study thumbnail into viewport
-    cy.get('[data-cy="thumbnail-list"]:nth-child(1)')
-      .scrollIntoView()
-      .drag('.viewport-drop-target');
-
     // Wait image to load on viewport
     cy.wait(2000);
 
@@ -56,7 +52,9 @@ describe('OHIF Save Measurements', function() {
         cy.get('.sb-success').should('be.visible');
 
         // Reload the page
-        cy.reload();
+        cy.reload()
+          .wait(1000) //Wait page to load
+          .expectMinimumThumbnails(2); //wait all thumbnails to load
 
         //Verify that recently added measurement was retrieved
         cy.get('@measurementsBtn').click();
@@ -105,8 +103,7 @@ describe('OHIF Save Measurements', function() {
     cy.get('.sb-error')
       .should('be.visible')
       .and('contains.text', 'Error while saving the measurements');
-    // Close message overlay
-    cy.get('.sb-closeIcon').click();
+
     // Close Measurements panel
     cy.get('@measurementsBtn').click();
   });
@@ -135,7 +132,9 @@ describe('OHIF Save Measurements', function() {
       .and('contains.text', 'Measurements were saved with success');
 
     // Reload the page
-    cy.reload();
+    cy.reload()
+      .wait(1000) //Wait page to load
+      .expectMinimumThumbnails(2); //wait all thumbnails to load
 
     //Verify that measurement for unsupported tool was not saved
     cy.get('@measurementsBtn').click();

platform/viewer/cypress/integration/visual-regression/PercyCheckOHIFCornerstoneHotkeys.spec.js

@@ -0,0 +1,33 @@
+describe('Visual Regression - OHIF Cornerstone Hotkeys', () => {
+  before(() => {
+    cy.openStudy('MISTER^MR');
+    cy.waitDicomImage();
+    cy.expectMinimumThumbnails(3);
+  });
+
+  beforeEach(() => {
+    cy.initCornerstoneToolsAliases();
+    cy.initCommonElementsAliases();
+    cy.resetViewport();
+  });
+
+  it('checks if hotkey "I" can invert the image', () => {
+    // Hotkey I
+    cy.get('body').type('I');
+    // Visual comparison
+    cy.screenshot('Hotkey I - Should Invert Image');
+    cy.percyCanvasSnapshot('Hotkey I - Should Invert Image');
+  });
+
+  it('checks if hotkey "SPACEBAR" can reset the image', () => {
+    // Press multiples hotkeys
+    cy.get('body').type('V+++I');
+
+    // Hotkey SPACEBAR
+    cy.get('body').type(' ');
+
+    // Visual comparison to make sure the 'inverted' image was reset
+    cy.screenshot('Hotkey SPACEBAR - Should Reset Image');
+    cy.percyCanvasSnapshot('Hotkey SPACEBAR - Should Reset Image');
+  });
+});

platform/viewer/cypress/integration/visual-regression/PercyCheckOHIFCornerstoneToolbar.spec.js

@@ -0,0 +1,84 @@
+describe('Visual Regression - OHIF Cornerstone Toolbar', () => {
+  before(() => {
+    cy.openStudy('MISTER^MR');
+    cy.waitDicomImage();
+    cy.expectMinimumThumbnails(5);
+  });
+
+  beforeEach(() => {
+    cy.initCornerstoneToolsAliases();
+    cy.initCommonElementsAliases();
+    cy.resetViewport();
+  });
+
+  it('checks if Pan tool will move the image inside the viewport', () => {
+    //Click on button and vefiry if icon is active on toolbar
+    cy.get('@panBtn')
+      .click()
+      .then($panBtn => {
+        cy.wrap($panBtn).should('have.class', 'active');
+      });
+
+    cy.get('@viewport')
+      .trigger('mousedown', 'center', { which: 1 })
+      .trigger('mousemove', 'bottom', { which: 1 })
+      .trigger('mouseup', 'bottom');
+
+    // Visual comparison
+    cy.percyCanvasSnapshot('Pan tool moved the image inside the viewport');
+  });
+
+  it('check if Invert tool will change the colors of the image in the viewport', () => {
+    // Click on More button
+    cy.get('@moreBtn').click();
+    // Verify if overlay is displayed
+    cy.get('.tooltip-toolbar-overlay').should('be.visible');
+
+    // Click on Invert button
+    cy.get('[data-cy="invert"]').click();
+
+    // Visual comparison
+    cy.percyCanvasSnapshot('Invert tool - Should Invert Canvas');
+  });
+
+  it('check if Rotate tool will change the image orientation in the viewport', () => {
+    //Click on More button
+    cy.get('@moreBtn').click();
+    //Verify if overlay is displayed
+    cy.get('.tooltip-toolbar-overlay')
+      .should('be.visible')
+      .then(() => {
+        //Click on Rotate button
+        cy.get('[data-cy="rotate right"]').click({ force: true });
+      });
+
+    // Visual comparison
+    cy.percyCanvasSnapshot('Rotate tool - Should Rotate Image to Right');
+  });
+
+  it('check if Flip H tool will flip the image horizontally in the viewport', () => {
+    //Click on More button
+    cy.get('@moreBtn').click();
+    //Verify if overlay is displayed
+    cy.get('.tooltip-toolbar-overlay').should('be.visible');
+
+    //Click on Flip H button
+    cy.get('[data-cy="flip h"]').click();
+
+    // Visual comparison
+    cy.percyCanvasSnapshot('Flip H tool - Should Flip Image on Y axis');
+  });
+
+  it('check if Flip V tool will flip the image vertically in the viewport', () => {
+    //Click on More button
+    cy.get('@moreBtn').click();
+    //Verify if overlay is displayed
+    cy.get('.tooltip-toolbar-overlay').should('be.visible');
+
+    //Click on Flip V button
+    cy.get('[data-cy="flip v"]').click();
+
+    // Visual comparison
+    cy.percyCanvasSnapshot('Flip V tool - Should Flip Image on X axis');
+  });
+});

platform/viewer/cypress/integration/visual-regression/PercyCheckOHIFDownloadSnapshotFile.spec.js

@@ -0,0 +1,50 @@
+describe('Visual Regression - OHIF Download Snapshot File', () => {
+  before(() => {
+    cy.openStudy('MISTER^MR');
+    cy.waitDicomImage();
+    cy.expectMinimumThumbnails(5);
+  });
+
+  beforeEach(() => {
+    cy.openDownloadImageModal();
+  });
+
+  afterEach(() => {
+    // Close modal
+    cy.get('[data-cy="close-button"]')
+      .scrollIntoView()
+      .click();
+  });
+
+  it('checks displayed information for Tablet experience', function() {
+    // Set Tablet resolution
+    cy.viewport(1000, 660);
+    // Visual comparison
+    cy.percyCanvasSnapshot('Download Image Modal - Tablet experience');
+  });
+
+  it('checks displayed information for Desktop experience', function() {
+    // Set Desktop resolution
+    cy.viewport(1750, 720);
+    // Visual comparison
+    cy.percyCanvasSnapshot('Download Image Modal - Desktop experience');
+  });
+
+  it('checks if "Show Annotations" checkbox will display annotations', function() {
+    // Close modal that is initially opened
+    cy.get('[data-cy="close-button"]').click();
+
+    // Add measurements in the viewport
+    cy.addLengthMeasurement();
+    cy.addAngleMeasurement();
+
+    // Open Modal
+    cy.openDownloadImageModal();
+    // Select "Show Annotations" option
+    cy.get('[data-cy="show-annotations"]').check();
+    // Check image preview
+    cy.get('[data-cy="image-preview"]').scrollIntoView();
+    // Visual comparison
+    cy.percyCanvasSnapshot('Download Image Modal - Show Annotations checked');
+  });
+});

platform/viewer/cypress/integration/visual-regression/PercyCheckOHIFExtensionMicroscopy.spec.js

@@ -0,0 +1,22 @@
+describe('Visual Regression - OHIF Microscopy Extension', () => {
+  before(() => {
+    cy.openStudyModality('SM');
+    cy.expectMinimumThumbnails(6);
+  });
+
+  it('drags and drop a SM thumbnail into viewport', () => {
+    cy.get('[data-cy="thumbnail-list"]')
+      .contains('SM')
+      .drag('.viewport-drop-target');
+
+    cy.get('.DicomMicroscopyViewer')
+      .its('length')
+      .should('be.eq', 1);
+
+    cy.wait(3000); //Waiting for image to render before taking the snapshot
+    // Visual comparison
+    cy.percyCanvasSnapshot(
+      'Microscopy Extension - Should display loaded canvas'
+    );
+  });
+});

platform/viewer/cypress/integration/visual-regression/PercyCheckOHIFExtensionPDF.spec.js

@@ -0,0 +1,20 @@
+describe('Visual Regression - OHIF PDF Extension', () => {
+  before(() => {
+    cy.openStudy('Dummy');
+    cy.expectMinimumThumbnails(6);
+  });
+
+  it('drags and drop a PDF thumbnail into viewport', () => {
+    cy.get('[data-cy="thumbnail-list"]')
+      .contains('DOC')
+      .drag('.viewport-drop-target');
+
+    cy.get('.DicomPDFViewport')
+      .its('length')
+      .should('be.eq', 1);
+
+    // This won't work unless we switch to an extension that renders using `canvas`
+    // Currently, we rely on the browser's built-in implementation
+    cy.percyCanvasSnapshot('PDF Extension - Should load PDF file');
+  });
+});

platform/viewer/cypress/integration/visual-regression/PercyCheckOHIFExtensionVTK.spec.js

@@ -0,0 +1,92 @@
+describe('Visual Regression - OHIF VTK Extension', () => {
+  before(() => {
+    cy.openStudy('Bellona');
+    cy.waitDicomImage();
+    cy.expectMinimumThumbnails(5);
+
+    //Waiting for the desired thumbnail content to be displayed
+    cy.get('[data-cy="thumbnail-list"]').should($list => {
+      expect($list).to.contain('Chest 1x10 Soft');
+    });
+
+    // Drag and drop thumbnail into viewport
+    cy.get('[data-cy="thumbnail-list"]')
+      .contains('Chest 1x10 Soft')
+      .drag('.viewport-drop-target');
+
+    //Select 2D MPR button
+    cy.get('[data-cy="2d mpr"]').click();
+
+    //Wait Reformatting Images
+    cy.waitVTKReformatting();
+  });
+
+  beforeEach(() => {
+    cy.initVTKToolsAliases();
+    cy.wait(1000); //Wait toolbar to finish loading
+  });
+
+  afterEach(() => {
+    cy.wait(5000); //wait screen loads back after screenshot
+
+    //Select Exit 2D MPR button
+    cy.get('[data-cy="exit 2d mpr"]').should($btn => {
+      expect($btn).to.be.visible;
+      $btn.click();
+    });
+    //Select 2D MPR button
+    cy.get('[data-cy="2d mpr"]').click();
+  });
+
+  it('checks if VTK buttons are displayed on the toolbar', () => {
+    // Visual comparison
+    cy.percyCanvasSnapshot(
+      'VTK initial state - Should display toolbar and 3 viewports'
+    );
+  });
+
+  it('checks Crosshairs tool', () => {
+    cy.get('@crosshairsBtn').click();
+
+    // Click and Move the mouse inside the viewport
+    cy.get('[data-cy="viewport-container-0"]')
+      .trigger('mousedown', 'center', { which: 1 })
+      .trigger('mousemove', 'top', { which: 1 })
+      .trigger('mouseup');
+
+    // Visual comparison
+    cy.percyCanvasSnapshot(
+      "VTK Crosshairs tool - Should display crosshairs' green lines"
+    );
+  });
+
+  it('checks WWWC tool', () => {
+    cy.get('@wwwcBtn').click();
+
+    // Click and Move the mouse inside the viewport
+    cy.get('[data-cy="viewport-container-0"]')
+      .trigger('mousedown', 'center', { which: 1 })
+      .trigger('mousemove', 'top', { which: 1 })
+      .trigger('mousedown', 'center', { which: 1 })
+      .trigger('mousemove', 'top', { which: 1 })
+      .trigger('mouseup', { which: 1 });
+
+    // Visual comparison
+    cy.percyCanvasSnapshot('VTK WWWC tool - Canvas should be bright');
+  });
+
+  it('checks Rotate tool', () => {
+    cy.get('@rotateBtn').click();
+
+    // Click and Move the mouse inside the viewport
+    cy.get('[data-cy="viewport-container-0"]')
+      .trigger('mousedown', 'center', { which: 1 })
+      .trigger('mousemove', 'top', { which: 1 })
+      .trigger('mousedown', 'center', { which: 1 })
+      .trigger('mousemove', 'top', { which: 1 })
+      .trigger('mouseup', { which: 1 });
+
+    // Visual comparison
+    cy.percyCanvasSnapshot('VTK Rotate tool - Should rotate image');
+  });
+});

platform/viewer/cypress/integration/visual-regression/PercyCheckOHIFRoutes.spec.js

@@ -0,0 +1,23 @@
+//We excluded the tests for '**/studies/**' because the bulk/all of our other study/viewer tests use this route
+
+describe('Visual Regression - OHIF Routes', function() {
+  beforeEach(function() {
+    cy.openStudyList();
+  });
+
+  it('checks PT/CT json url study route', function() {
+    cy.visit(
+      '/viewer?url=https://s3.eu-central-1.amazonaws.com/ohif-viewer/JSON/PTCTStudy.json'
+    );
+
+    cy.server();
+    cy.route('GET', '**/PTCTStudy/**').as('getPTCTStudy');
+
+    cy.wait('@getPTCTStudy.all');
+    cy.get('@getPTCTStudy').should($route => {
+      expect($route.status).to.be.eq(200);
+    });
+
+    cy.percyCanvasSnapshot('PT/CT json study route');
+  });
+});

platform/viewer/cypress/integration/visual-regression/PercyCheckOHIFStudyViewer.spec.js

@@ -0,0 +1,35 @@
+describe('Visual Regression - OHIF Study Viewer Page', function() {
+  before(function() {
+    cy.openStudy('MISTER^MR');
+    cy.waitDicomImage();
+    cy.expectMinimumThumbnails(6);
+  });
+
+  beforeEach(function() {
+    cy.initCommonElementsAliases();
+    cy.resetViewport();
+  });
+
+  it('checks if series thumbnails are being displayed', function() {
+    cy.percyCanvasSnapshot('Series Thumbnails - Should Display Thumbnails');
+  });
+
+  it('opens About modal and verify the displayed information', function() {
+    cy.get('[data-cy="options-menu"]')
+      .first()
+      .click();
+    cy.get('[data-cy="dd-item-menu"]')
+      .first()
+      .click();
+    cy.get('[data-cy="about-modal"]')
+      .as('aboutOverlay')
+      .should('be.visible');
+
+    // Visual comparison
+    cy.percyCanvasSnapshot('About modal - Should display modal');
+
+    //close modal
+    cy.get('[data-cy="close-button"]').click();
+    cy.get('@aboutOverlay').should('not.be.enabled');
+  });
+});

platform/viewer/cypress/integration/visual-regression/PercyCheckOHIFUserPreferences.spec.js

@@ -0,0 +1,188 @@
+describe('Visual Regression - OHIF User Preferences', () => {
+  context('Study List Page', function() {
+    before(() => {
+      cy.visit('/');
+    });
+
+    beforeEach(() => {
+      // Open User Preferences modal
+      cy.openPreferences();
+      cy.initPreferencesModalAliases();
+    });
+
+    it('checks displayed information on User Preferences modal', function() {
+      cy.get('@restoreBtn').scrollIntoView();
+
+      // Visual comparison
+      cy.percyCanvasSnapshot(
+        'User Preferences Modal - Hotkeys tab initial state in StudyList page'
+      );
+      cy.get('[data-cy="close-button"]').click();
+    });
+
+    it('checks translation by selecting Spanish language', function() {
+      cy.get('@userPreferencesGeneralTab')
+        .click()
+        .should('have.class', 'active');
+
+      // Language dropdown should be displayed
+      cy.get('#language-select').should('be.visible');
+
+      // Visual comparison
+      cy.percyCanvasSnapshot(
+        'User Preferences Modal - General tab initial state in StudyList page'
+      );
+      // Set language to Spanish and save
+      cy.setLanguage('Spanish');
+
+      // Options menu should be translated
+      cy.get('[data-cy="options-menu"]')
+        .should('have.text', 'Opciones')
+        .click();
+
+      // Visual comparison
+      cy.percyCanvasSnapshot(
+        'User Preferences Modal - Spanish selected in StudyList page'
+      );
+
+      // Close Options menu
+      cy.get('[data-cy="options-menu"]').click();
+    });
+  });
+
+  context('Study Viewer Page', function() {
+    before(() => {
+      cy.openStudy('MISTER^MR');
+      cy.expectMinimumThumbnails(5);
+    });
+
+    beforeEach(() => {
+      cy.initCommonElementsAliases();
+      cy.resetViewport();
+
+      cy.resetUserHoktkeyPreferences();
+      // Open User Preferences modal
+      cy.openPreferences();
+    });
+
+    it('checks displayed information on User Preferences modal', function() {
+      cy.get('@restoreBtn').scrollIntoView();
+
+      // Visual comparison
+      cy.percyCanvasSnapshot(
+        'User Preferences Modal - Hotkeys tab initial state in StudyViewer page'
+      );
+      cy.get('[data-cy="close-button"]').click(); //close User Preferences modal
+    });
+
+    it('checks translation by selecting Spanish language', function() {
+      cy.get('@userPreferencesGeneralTab')
+        .click()
+        .should('have.class', 'active');
+
+      // Visual comparison
+      cy.percyCanvasSnapshot(
+        'User Preferences Modal - General tab initial state in StudyViewer page'
+      );
+      // Set language to Spanish
+      cy.setLanguage('Spanish');
+
+      // Options menu should be translated
+      cy.get('[data-cy="options-menu"]')
+        .should('have.text', 'Opciones')
+        .click();
+
+      // Visual comparison
+      cy.percyCanvasSnapshot(
+        'User Preferences Modal - Spanish selected in StudyViewer page'
+      );
+
+      // Close Options menu
+      cy.get('[data-cy="options-menu"]').click();
+    });
+
+    it('checks if user can restore to default the language selection and application will be in English', function() {
+      cy.get('@userPreferencesGeneralTab')
+        .click()
+        .should('have.class', 'active');
+
+      // Set language to Spanish
+      cy.setLanguage('Spanish');
+
+      // Open User Preferences modal
+      cy.openPreferences();
+
+      // Go to general tab
+      cy.get('@userPreferencesGeneralTab').click();
+
+      cy.get('@restoreBtn')
+        .scrollIntoView()
+        .click();
+
+      cy.get('@saveBtn')
+        .scrollIntoView()
+        .click();
+
+      // Options menu should be in English
+      cy.get('[data-cy="options-menu"]')
+        .should('have.text', 'Options')
+        .click();
+
+      // Visual comparison
+      cy.percyCanvasSnapshot(
+        'User Preferences Modal - English selected in StudyViewer page'
+      );
+
+      // Close Options menu
+      cy.get('[data-cy="options-menu"]').click();
+    });
+
+    it('checks new hotkeys for "Next" and "Previous" Image on Viewport', function() {
+      // Go go hotkeys tab
+      cy.get('@userPreferencesHotkeysTab')
+        .click()
+        .should('have.class', 'active');
+
+      // Set new hotkey for 'Next Image Viewport' function
+      cy.setNewHotkeyShortcutOnUserPreferencesModal(
+        'Next Image Viewport',
+        '{shift}{rightarrow}'
+      );
+
+      // Set new hotkey for 'Previous Image Viewport' function
+      cy.setNewHotkeyShortcutOnUserPreferencesModal(
+        'Previous Image Viewport',
+        '{shift}{leftarrow}'
+      );
+
+      // Save new hotkeys
+      cy.get('@saveBtn')
+        .scrollIntoView()
+        .click();
+
+      // Set 3 viewports layout
+      cy.setLayout(3, 1);
+      cy.waitViewportImageLoading();
+
+      // Rotate Right and Invert colors on Viewport #1
+      cy.get('body').type('RI');
+
+      //Move to Next Viewport
+      cy.get('body').type('{shift}{rightarrow}');
+      // Rotate Left and Invert colors on Viewport #2
+      cy.get('body').type('LI');
+
+      //Move to Previous Viewport
+      cy.get('body').type('{shift}{leftarrow}');
+      // Reset viewport #1 with spacebar hotkey
+      cy.get('body').type(' ');
+
+      // Visual comparison
+      cy.percyCanvasSnapshot(
+        'Viewport Navigation - 2nd viewport inverted and rotated'
+      );
+      // Set 1 viewport layout
+      cy.setLayout(1, 1);
+    });
+  });
+});

platform/viewer/cypress/support/commands.js

@@ -1,4 +1,5 @@
 import '@percy/cypress';
+import 'cypress-file-upload';
 import { DragSimulator } from '../helpers/DragSimulator.js';
 import {
   initCornerstoneToolsAliases,
@@ -168,7 +169,7 @@ Cypress.Commands.add(
 );
 
 Cypress.Commands.add('expectMinimumThumbnails', (seriesToWait = 1) => {
-  cy.get('[data-cy=thumbnail-list]', { timeout: 10000 }).should($itemList => {
+  cy.get('[data-cy=thumbnail-list]', { timeout: 20000 }).should($itemList => {
     expect($itemList.length >= seriesToWait).to.be.true;
   });
 });

platform/viewer/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@ohif/viewer",
-  "version": "3.3.5",
+  "version": "3.6.0",
   "description": "OHIF Viewer",
   "author": "OHIF Contributors",
   "license": "MIT",
@@ -19,15 +19,17 @@
   "scripts": {
     "build:package": "cross-env NODE_ENV=production node --max_old_space_size=4096 ./../../node_modules/webpack/bin/webpack.js --config .webpack/webpack.commonjs.js --progress",
     "build:viewer": "cross-env NODE_ENV=production node --max_old_space_size=4096 ./../../node_modules/webpack/bin/webpack.js --config .webpack/webpack.pwa.js --progress",
+    "build:viewer:lesion-tracker": "cross-env ENTRY_TARGET=index-lesion-tracker.js NODE_ENV=production node --max_old_space_size=4096 ./../../node_modules/webpack/bin/webpack.js --config .webpack/webpack.pwa.js --progress",
     "build:viewer:ci": "cross-env NODE_ENV=production PUBLIC_URL=/pwa/ APP_CONFIG=config/netlify.js QUICK_BUILD=true node --max_old_space_size=4096 ./../../node_modules/webpack/bin/webpack.js --config .webpack/webpack.pwa.js",
     "build:viewer:demo": "cross-env NODE_ENV=production APP_CONFIG=config/demo.js HTML_TEMPLATE=rollbar.html QUICK_BUILD=true node --max_old_space_size=4096 ./../../node_modules/webpack/bin/webpack.js --progress --config .webpack/webpack.pwa.js",
     "build:viewer:package": "yarn run build:package",
     "dev": "cross-env NODE_ENV=development webpack-dev-server --config .webpack/webpack.pwa.js --watch",
     "dev:orthanc": "cross-env NODE_ENV=development PROXY_TARGET=/dicom-web PROXY_DOMAIN=http://localhost:8042 APP_CONFIG=config/docker_nginx-orthanc.js webpack-dev-server --config .webpack/webpack.pwa.js --watch",
     "dev:viewer": "yarn run dev",
+    "dev:viewer:lesion-tracker": "cross-env ENTRY_TARGET=index-lesion-tracker.js NODE_ENV=development webpack-dev-server --config .webpack/webpack.pwa.js --watch",
     "start": "yarn run dev",
     "test:e2e": "cypress open",
-    "test:e2e:ci": "percy exec -- cypress run --record --browser chrome",
+    "test:e2e:ci": "percy exec -- cypress run --config video=false --record --browser chrome --spec 'cypress/integration/visual-regression/**/*'",
     "test:e2e:dist": "start-server-and-test test:e2e:serve http://localhost:3000 test:e2e:ci",
     "test:e2e:serve": "serve -n -l 3000 -s dist",
     "test:unit": "jest --watchAll",
@@ -45,20 +47,21 @@
   },
   "dependencies": {
     "@babel/runtime": "^7.5.5",
-    "@ohif/core": "^2.3.2",
-    "@ohif/extension-cornerstone": "^2.2.1",
+    "@ohif/core": "^2.4.0",
+    "@ohif/extension-cornerstone": "^2.3.0",
     "@ohif/extension-dicom-html": "^1.1.0",
     "@ohif/extension-dicom-microscopy": "^0.50.6",
     "@ohif/extension-dicom-pdf": "^1.0.1",
-    "@ohif/extension-vtk": "^1.2.5",
-    "@ohif/i18n": "^0.52.4",
-    "@ohif/ui": "^1.1.7",
+    "@ohif/extension-lesion-tracker": "^0.1.0",
+    "@ohif/extension-vtk": "^1.2.16",
+    "@ohif/i18n": "^0.52.5",
+    "@ohif/ui": "^1.1.9",
     "@tanem/react-nprogress": "^1.1.25",
     "classnames": "^2.2.6",
     "core-js": "^3.2.1",
     "cornerstone-core": "^2.2.8",
     "cornerstone-math": "^0.1.8",
-    "cornerstone-tools": "^4.9.0",
+    "cornerstone-tools": "^4.12.0",
     "cornerstone-wado-image-loader": "^3.0.0",
     "dcmjs": "^0.8.2",
     "dicom-parser": "^1.8.3",
@@ -88,7 +91,7 @@
     "cypress": "^3.8.0",
     "gh-pages": "2.0.1",
     "identity-obj-proxy": "3.0.x",
-    "lodash": "4.17.11",
+    "lodash": "4.17.15",
     "lodash.clonedeep": "4.5.0"
   }
 }

platform/viewer/public/config/google.js

@@ -2,6 +2,7 @@ window.config = {
   routerBasename: '/',
   whiteLabelling: {},
   enableGoogleCloudAdapter: true,
+  healthcareApiEndpoint: 'https://healthcare.googleapis.com/v1beta1',
   servers: {
     // This is an array, but we'll only use the first entry for now
     dicomWeb: [],

platform/viewer/src/App.js

@@ -23,6 +23,7 @@ import {
   UINotificationService,
   UIModalService,
   UIDialogService,
+  MeasurementService,
   utils,
   redux as reduxOHIF,
 } from '@ohif/core';
@@ -122,7 +123,12 @@ class App extends Component {
     } = this._appConfig;
 
     this.initUserManager(oidc);
-    _initServices([UINotificationService, UIModalService, UIDialogService]);
+    _initServices([
+      UINotificationService,
+      UIModalService,
+      UIDialogService,
+      MeasurementService,
+    ]);
     _initExtensions(
       [...defaultExtensions, ...extensions],
       cornerstoneExtensionConfig,
@@ -144,6 +150,7 @@ class App extends Component {
       UINotificationService,
       UIDialogService,
       UIModalService,
+      MeasurementService,
     } = servicesManager.services;
 
     if (this._userManager) {

platform/viewer/src/OHIFStandaloneViewer.js

@@ -83,6 +83,44 @@ class OHIFStandaloneViewer extends Component {
             path="/callback"
             render={() => <CallbackPage userManager={userManager} />}
           />
+          <Route
+            path="/login"
+            component={() => {
+              const queryParams = new URLSearchParams(
+                this.props.location.search
+              );
+              const iss = queryParams.get('iss');
+              const loginHint = queryParams.get('login_hint');
+              const targetLinkUri = queryParams.get('target_link_uri');
+              const oidcAuthority =
+                appConfig.oidc !== null && appConfig.oidc[0].authority;
+              if (iss !== oidcAuthority) {
+                console.error(
+                  'iss of /login does not match the oidc authority'
+                );
+                return null;
+              }
+
+              userManager.removeUser().then(() => {
+                if (targetLinkUri !== null) {
+                  sessionStorage.setItem(
+                    'ohif-redirect-to',
+                    new URL(targetLinkUri).pathname
+                  );
+                } else {
+                  sessionStorage.setItem('ohif-redirect-to', '/');
+                }
+
+                if (loginHint !== null) {
+                  userManager.signinRedirect({ login_hint: loginHint });
+                } else {
+                  userManager.signinRedirect();
+                }
+              });
+
+              return null;
+            }}
+          />
           <Route
             component={() => {
               userManager.getUser().then(user => {

platform/viewer/src/connectedComponents/ConnectedStandaloneRouting.js

@@ -0,0 +1,21 @@
+import { connect } from 'react-redux';
+import StandaloneRouting from '../routes/StandaloneRouting';
+
+const mapDispatchToProps = dispatch => {
+  return {
+    activateServer: server => {
+      const action = {
+        type: 'ACTIVATE_SERVER',
+        server,
+      };
+      dispatch(action);
+    },
+  };
+};
+
+const ConnectedStandaloneRouting = connect(
+  null,
+  mapDispatchToProps
+)(StandaloneRouting);
+
+export default ConnectedStandaloneRouting;

platform/viewer/src/connectedComponents/ConnectedViewerRetrieveStudyData.js

@@ -2,23 +2,21 @@ import { connect } from 'react-redux';
 import ViewerRetrieveStudyData from './ViewerRetrieveStudyData.js';
 import OHIF from "@ohif/core";
 
-const {
-  clearViewportSpecificData
-} = OHIF.redux.actions;
+const { clearViewportSpecificData } = OHIF.redux.actions;
 const isActive = a => a.active === true;
 
-const mapStateToProps = state => {
+const mapStateToProps = (state, ownProps) => {
   const activeServer = state.servers.servers.find(isActive);
 
   return {
-    server: activeServer,
+    server: ownProps.server || activeServer,
   };
 };
 const mapDispatchToProps = dispatch => {
   return {
     clearViewportSpecificData: () => {
       dispatch(clearViewportSpecificData());
-    }
+    },
   };
 };
 

platform/viewer/src/connectedComponents/ViewerRetrieveStudyData.js

@@ -1,5 +1,6 @@
 import React, { useState, useEffect, useContext } from 'react';
 import { metadata, studies, utils, log } from '@ohif/core';
+import usePrevious from '../customHooks/usePrevious';
 
 import ConnectedViewer from './ConnectedViewer.js';
 import PropTypes from 'prop-types';
@@ -128,9 +129,9 @@ const _addSeriesToStudy = (studyMetadata, series) => {
 const _updateMetaDataManager = (study, studyMetadata, series) => {
   updateMetaDataManager(study, series);
 
-  const { studyInstanceUID } = study;
+  const { studyInstanceUid } = study;
 
-  if (!studyMetadataManager.get(studyInstanceUID)) {
+  if (!studyMetadataManager.get(studyInstanceUid)) {
     studyMetadataManager.add(studyMetadata);
   }
 };
@@ -252,6 +253,7 @@ function ViewerRetrieveStudyData({
           .catch(error => {
             if (error && !error.isCanceled) {
               setError(true);
+              log.error(error);
             }
           });
 
@@ -289,11 +291,13 @@ function ViewerRetrieveStudyData({
         .catch(error => {
           if (error && !error.isCanceled) {
             setError(true);
+            log.error(error);
           }
         });
     } catch (error) {
       if (error) {
         setError(true);
+        log.error(error);
       }
     }
   };
@@ -314,9 +318,15 @@ function ViewerRetrieveStudyData({
     }
   };
 
+  const prevStudyInstanceUids = usePrevious(studyInstanceUids);
+
   useEffect(() => {
-    studyMetadataManager.purge();
-    purgeCancellablePromises();
+    const hasStudyInstanceUidsChanged = !(prevStudyInstanceUids && prevStudyInstanceUids.every(e => studyInstanceUids.includes(e)));
+
+    if (hasStudyInstanceUidsChanged) {
+      studyMetadataManager.purge();
+      purgeCancellablePromises();
+    }
   }, [studyInstanceUids]);
 
   useEffect(() => {

platform/viewer/src/customHooks/useServer.js

@@ -18,6 +18,7 @@ const getActiveServer = servers => {
 const getServers = (appConfig, project, location, dataset, dicomStore) => {
   let servers = [];
   if (appConfig.enableGoogleCloudAdapter) {
+    GoogleCloudApi.urlBase = appConfig.healthcareApiEndpoint;
     const pathUrl = GoogleCloudApi.getUrlBaseDicomWeb(
       project,
       location,

platform/viewer/src/googleCloud/api/GoogleCloudApi.js

@@ -15,7 +15,11 @@ class GoogleCloudApi {
   }
 
   get urlBase() {
-    return `https://healthcare.googleapis.com/v1beta1`;
+    return this.healthcareApiEndpoint || 'https://healthcare.googleapis.com/v1beta1';
+  }
+
+  set urlBase(url) {
+    this.healthcareApiEndpoint = url;
   }
 
   get urlBaseProject() {

platform/viewer/src/index-lesion-tracker.js

@@ -0,0 +1,46 @@
+/**
+ * Entry point for development and production PWA builds.
+ * Packaged (NPM) builds go through `index-umd.js`
+ */
+
+import 'regenerator-runtime/runtime';
+
+import App from './App.js';
+import React from 'react';
+import ReactDOM from 'react-dom';
+
+/**
+ * EXTENSIONS
+ * =================
+ *
+ * Importing and modifying the extensions our app uses HERE allows us to leverage
+ * tree shaking and a few other niceties. However, by including them here they become
+ * "baked in" to the published application.
+ *
+ * Depending on your use case/needs, you may want to consider not adding any extensions
+ * by default HERE, and instead provide them via the extensions configuration key or
+ * by using the exported `App` component, and passing in your extensions as props using
+ * the defaultExtensions property.
+ */
+import OHIFLesionTrackerExtension from '@ohif/extension-lesion-tracker';
+import OHIFDicomPDFExtension from '@ohif/extension-dicom-pdf';
+
+/*
+ * Default Settings
+ */
+let config = {};
+
+if (window) {
+  config = window.config || {};
+}
+
+const appProps = {
+  config,
+  defaultExtensions: [OHIFLesionTrackerExtension, OHIFDicomPDFExtension],
+};
+
+/** Create App */
+const app = React.createElement(App, appProps, null);
+
+/** Render */
+ReactDOM.render(app, document.getElementById('root'));

platform/viewer/src/lib/localFileLoaders/dicomFileLoader.js

@@ -19,7 +19,7 @@ const DICOMFileLoader = new (class extends FileLoader {
         dicomData.meta
       );
     } catch (e) {
-      console.log('Error on getting dicom file dataset. It defaults to empty');
+      console.error('Error reading dicom file', e);
     }
     // Set imageId on dataset to be consumed later on
     dataset.imageId = imageId;

platform/viewer/src/routes/NotFound.js

@@ -2,14 +2,16 @@ import React from 'react';
 import './NotFound.css';
 import { Link } from 'react-router-dom';
 
-export default function NotFound() {
+export default function NotFound({ message = 'Sorry, this page does not exist.', showGoBackButton = true }) {
   return (
     <div className={'not-found'}>
       <div>
-        <h4>Sorry, this page does not exist.</h4>
-        <h5>
-          <Link to={'/'}>Go back to the Study List</Link>
-        </h5>
+        <h4>{message}</h4>
+        {showGoBackButton && (
+          <h5>
+            <Link to={'/'}>Go back to the Study List</Link>
+          </h5>
+        )}
       </div>
     </div>
   );

platform/viewer/src/routes/StandaloneRouting.js

@@ -1,29 +1,33 @@
 import React, { Component } from 'react';
-import { log, metadata, studies, utils } from '@ohif/core';
-
+import { log, metadata, utils } from '@ohif/core';
 import PropTypes from 'prop-types';
-import ConnectedViewer from '../connectedComponents/ConnectedViewer';
-import { extensionManager } from './../App.js';
 import qs from 'querystring';
 
-const { OHIFStudyMetadata } = metadata;
-const { retrieveStudiesMetadata } = studies;
+import { extensionManager } from './../App.js';
+import ConnectedViewer from '../connectedComponents/ConnectedViewer';
+import ConnectedViewerRetrieveStudyData from '../connectedComponents/ConnectedViewerRetrieveStudyData';
+import NotFound from '../routes/NotFound';
+
 const { studyMetadataManager, updateMetaDataManager } = utils;
+const { OHIFStudyMetadata } = metadata;
 
 class StandaloneRouting extends Component {
   state = {
     studies: null,
+    server: null,
+    studyInstanceUids: null,
+    seriesInstanceUids: null,
     error: null,
+    loading: true,
   };
 
-  studyInstanceUids = [];
-
   static propTypes = {
     location: PropTypes.object,
     store: PropTypes.object,
+    setServers: PropTypes.func,
   };
 
-  static parseQueryAndFetchStudies(query) {
+  parseQueryAndRetrieveDICOMWebData(query) {
     return new Promise((resolve, reject) => {
       const url = query.url;
 
@@ -43,7 +47,11 @@ class StandaloneRouting extends Component {
 
       // When the JSON has been returned, parse it into a JavaScript Object
       // and render the OHIF Viewer with this data
-      oReq.addEventListener('load', () => {
+      oReq.addEventListener('load', event => {
+        if (event.target.status === 404) {
+          reject(new Error('No JSON data found'));
+        }
+
         // Parse the response content
         // https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest/responseText
         if (!oReq.responseText) {
@@ -54,27 +62,24 @@ class StandaloneRouting extends Component {
         log.info(JSON.stringify(oReq.responseText, null, 2));
 
         const data = JSON.parse(oReq.responseText);
-        if (data.servers && query.studyInstanceUids) {
+        if (data.servers) {
+          if (!query.studyInstanceUids) {
+            log.warn('No study instance uids specified');
+            reject(new Error('No study instance uids specified'));
+          }
+
           const server = data.servers.dicomWeb[0];
           server.type = 'dicomWeb';
 
-          const studyInstanceUids = query.studyInstanceUids.split(';');
-          const seriesInstanceUids = [];
+          log.warn('Activating server', server);
+          this.props.activateServer(server);
 
-          retrieveStudiesMetadata(
-            server,
-            studyInstanceUids,
-            seriesInstanceUids
-          ).then(
-            studies => {
-              resolve(studies);
-            },
-            error => {
-              reject(error);
-            }
-          );
+          const studyInstanceUids = query.studyInstanceUids.split(';');
+          const seriesInstanceUids = query.seriesInstanceUids ? query.seriesInstanceUids.split(';') : [];
+
+          resolve({ server, studyInstanceUids, seriesInstanceUids });
         } else {
-          resolve(data.studies);
+          resolve({ studies: data.studies, studyInstanceUids: [] });
         }
       });
 
@@ -96,56 +101,80 @@ class StandaloneRouting extends Component {
 
       // Remove ? prefix which is included for some reason
       search = search.slice(1, search.length);
-
       const query = qs.parse(search);
-      const studies = await StandaloneRouting.parseQueryAndFetchStudies(query);
 
-      studyMetadataManager.purge();
+      let {
+        server,
+        studies,
+        studyInstanceUids,
+        seriesInstanceUids,
+      } = await this.parseQueryAndRetrieveDICOMWebData(query);
 
-      // Map studies to new format, update metadata manager?
-      const uniqueStudyUids = new Set();
-      const updatedStudies = studies.map(study => {
-        const studyMetadata = new OHIFStudyMetadata(
-          study,
-          study.studyInstanceUid
-        );
-        const sopClassHandlerModules =
-          extensionManager.modules['sopClassHandlerModule'];
+      if (studies) {
+        const {
+          studies: updatedStudies,
+          studyInstanceUids: updatedStudiesInstanceUids,
+        } = _mapStudiesToNewFormat(studies);
+        studies = updatedStudies;
+        studyInstanceUids = updatedStudiesInstanceUids;
+      }
 
-        study.displaySets =
-          study.displaySets ||
-          studyMetadata.createDisplaySets(sopClassHandlerModules);
-        studyMetadata.setDisplaySets(study.displaySets);
-
-        // Updates WADO-RS metaDataManager
-        updateMetaDataManager(study);
-
-        studyMetadataManager.add(studyMetadata);
-        uniqueStudyUids.add(study.studyInstanceUid);
-
-        return study;
+      this.setState({
+        studies,
+        server,
+        studyInstanceUids,
+        seriesInstanceUids,
+        loading: false,
       });
-
-      this.studyInstanceUids = Array.from(uniqueStudyUids);
-      this.setState({ studies: updatedStudies });
     } catch (error) {
-      this.setState({ error });
+      this.setState({ error: error.message, loading: false });
     }
   }
 
   render() {
-    if (this.state.error) {
-      return <div>Error: {JSON.stringify(this.state.error)}</div>;
-    } else if (!this.state.studies) {
-      return <div>Loading...</div>;
+    const message = this.state.error ? `Error: ${JSON.stringify(this.state.error)}` : 'Loading...';
+    if (this.state.error || this.state.loading) {
+      return <NotFound message={message} showGoBackButton={this.state.error} />;
     }
-    return (
-      <ConnectedViewer
-        studies={this.state.studies}
-        studyInstanceUids={this.studyInstanceUids}
-      />
-    );
+
+    return this.state.studies ? (
+      <ConnectedViewer studies={this.state.studies} />
+    ) : (
+        <ConnectedViewerRetrieveStudyData
+          studyInstanceUids={this.state.studyInstanceUids}
+          seriesInstanceUids={this.state.seriesInstanceUids}
+          server={this.state.server}
+        />
+      );
   }
 }
 
+const _mapStudiesToNewFormat = studies => {
+  studyMetadataManager.purge();
+
+  /* Map studies to new format, update metadata manager? */
+  const uniqueStudyUids = new Set();
+  const updatedStudies = studies.map(study => {
+    const studyMetadata = new OHIFStudyMetadata(study, study.studyInstanceUid);
+
+    const sopClassHandlerModules = extensionManager.modules['sopClassHandlerModule'];
+    study.displaySets = study.displaySets ||
+      studyMetadata.createDisplaySets(sopClassHandlerModules);
+    studyMetadata.setDisplaySets(study.displaySets);
+
+    /* Updates WADO-RS metaDataManager */
+    updateMetaDataManager(study);
+
+    studyMetadataManager.add(studyMetadata);
+    uniqueStudyUids.add(study.studyInstanceUid);
+
+    return study;
+  });
+
+  return {
+    studies: updatedStudies,
+    studyInstanceUids: Array.from(uniqueStudyUids),
+  };
+};
+
 export default StandaloneRouting;