feat: Snapshot Download Tool (#840)

* feat(Download ScreenShot Dialog)

- UI part of it

* feat(Download ScreenShot Dialog)

- UI part of it

* feat(Download ScreenShot Dialog)

- Missing Annotations showing controls

* feat(Download ScreenShot Dialog)

- Missing Annotations showing controls

* feat(Download ScreenShot Dialog)

- Partial Pull Request - Not ready to Prod yet.

* feat(Download ScreenShot Dialog)

  - UI - v2

* feat(Download ScreenShot Dialog)

  - UI - v3

* feat(Download ScreenShot Dialog)

  - Resizing tool

* feat(Download ScreenShot Dialog)

  - Resizing tool

* feat(Download ScreenShot Dialog)

  - Removing hardcoded CSS left

* feat(Download ScreenShot Dialog)

  - Bugfixes

* feat(Download ScreenShot Dialog)

  - Bugfixes - Escape closes the modal

* feat(Download ScreenShot Dialog)

  - Bugfixes - Responsive issues

* WIP: Refactoring DownloadDialog

* WIP: Refactoring DownloadDialog

* Align label and hide background canvas

* Add constantes and remove code not used

* Reset state on close modal

* Extract cornerstone to connect

* Fix modal zindex and add custom canvas classname

* CR Update: Add proptypes and fix useeffect warning

* CR Update: Refactor hooks, styles and imports

* CR Update: Remove important from css

* CR Update: Update core utils test of index

platform/core/src/utils/b64toBlob.js

@@ -0,0 +1,22 @@
+/* Enabled JPEG images downloading on IE11. */
+const b64toBlob = (b64Data, contentType = '', sliceSize = 512) => {
+  const byteCharacters = atob(b64Data);
+  const byteArrays = [];
+
+  for (let offset = 0; offset < byteCharacters.length; offset += sliceSize) {
+    const slice = byteCharacters.slice(offset, offset + sliceSize);
+
+    const byteNumbers = new Array(slice.length);
+    for (let i = 0; i < slice.length; i++) {
+      byteNumbers[i] = slice.charCodeAt(i);
+    }
+
+    const byteArray = new Uint8Array(byteNumbers);
+    byteArrays.push(byteArray);
+  }
+
+  const blob = new Blob(byteArrays, { type: contentType });
+  return blob;
+};
+
+export default b64toBlob;

platform/core/src/utils/index.js

@@ -9,6 +9,7 @@ import studyMetadataManager from './studyMetadataManager';
 import updateMetaDataManager from './updateMetaDataManager.js';
 import writeScript from './writeScript.js';
 import DicomLoaderService from './dicomLoaderService.js';
+import b64toBlob from './b64toBlob.js';
 import * as urlUtil from './urlUtil';
 
 const utils = {
@@ -18,6 +19,7 @@ const utils = {
   addServers,
   sortBy,
   writeScript,
+  b64toBlob,
   StackManager,
   studyMetadataManager,
   // Updates WADO-RS metaDataManager
@@ -34,6 +36,7 @@ export {
   addServers,
   sortBy,
   writeScript,
+  b64toBlob,
   StackManager,
   studyMetadataManager,
   // Updates WADO-RS metaDataManager

platform/core/src/utils/index.test.js

@@ -9,13 +9,14 @@ describe('Top level exports', () => {
       'addServers',
       'sortBy',
       'writeScript',
+      'b64toBlob',
       'StackManager',
       'studyMetadataManager',
       // Updates WADO-RS metaDataManager
       'updateMetaDataManager',
       'DICOMTagDescriptions',
       'DicomLoaderService',
-      'urlUtil'
+      'urlUtil',
     ].sort();
 
     const exports = Object.keys(utils.default).sort();