Add image export support.

packages/editor/lang/en.json

@@ -47,6 +47,9 @@
   "appbar.tooltip-undo": {
     "defaultMessage": "Undo"
   },
+  "editor-panel.icon-title": {
+    "defaultMessage": "Icon"
+  },
   "editor-panel.link-panel-title": {
     "defaultMessage": "Link"
   },
@@ -158,9 +161,6 @@
   "icon-picker.show-images": {
     "defaultMessage": "Show images"
   },
-  "editor-panel.icon-title": {
-    "defaultMessage": "Icon"
-  },
   "link.help_text": {
     "defaultMessage": "Address is not valid"
   },
@@ -195,7 +195,7 @@
     "defaultMessage": "Collpase children"
   },
   "shortcut-help-pane.copy-and-text": {
-    "defaultMessage": "Copy and paste topics"
+    "defaultMessage": "Copy and paste topics/Copy mindmap image to clipboard."
   },
   "shortcut-help-pane.delete-topic": {
     "defaultMessage": "Delete topic"

packages/editor/src/components/action-widget/pane/keyboard-shortcut-help/index.tsx

@@ -133,7 +133,7 @@ const KeyboardShorcutsHelp = (): ReactElement => {
             <td>
               <FormattedMessage
                 id="shortcut-help-pane.copy-and-text"
-                defaultMessage="Copy and paste topics"
+                defaultMessage="Copy and paste topics/Copy mindmap image to clipboard."
               />
             </td>
             <td>Ctrl + C / Ctrl + V</td>

packages/mindplot/src/components/Designer.ts

@@ -57,6 +57,7 @@ import WidgetManager from './WidgetManager';
 import { TopicShapeType } from './model/INodeModel';
 import { LineType } from './ConnectionLine';
 import XMLSerializerFactory from './persistence/XMLSerializerFactory';
+import ImageExpoterFactory from './export/ImageExporterFactory';
 
 class Designer extends Events {
   private _mindmap: Mindmap | null;
@@ -377,7 +378,7 @@ class Designer extends Events {
     }
   }
 
-  copyToClipboard(): void {
+  async copyToClipboard(): Promise<void> {
     let topics = this.getModel().filterSelectedTopics();
     if (topics.length > 0) {
       const mindmap = new Mindmap();
@@ -391,19 +392,34 @@ class Designer extends Events {
         nodeModel.connectTo(central);
       });
 
-      // Serialize to mindmap ...
+      // Create text blob ...
       const serializer = XMLSerializerFactory.createFromMindmap(mindmap);
       const document = serializer.toXML(mindmap);
-      const xmmStr: string = new XMLSerializer().serializeToString(document);
+      const xmlStr: string = new XMLSerializer().serializeToString(document);
+      const textPlainBlob = new Blob([xmlStr], { type: 'text/plain' });
 
-      // Convert to node, only text/html is supported...
-      const type = 'text/plain';
-      const blob = new Blob([xmmStr], { type });
+      // Create image blob ...
+      const workspace = designer.getWorkSpace();
+      const svgElement = workspace.getSVGElement();
+      const size = { width: window.innerWidth, height: window.innerHeight };
+
+      const imageUrl = ImageExpoterFactory.create(
+        'png',
+        svgElement,
+        size.width,
+        size.height,
+        false,
+      );
+      let imgStr = await imageUrl.exportAndEncode();
+      imgStr = imgStr.replace('octet/stream', 'image/png');
+      const imgBlob = await (await fetch(imgStr)).blob();
+
+      // Finally, add to clipboard ...
       const clipboard = new ClipboardItem({
-        [blob.type]: blob,
+        [textPlainBlob.type]: textPlainBlob,
+        [imgBlob.type]: imgBlob,
       });
 
-      // Copy to clipboard ...
       navigator.clipboard.write([clipboard]).then(
         () => console.log('Copy of node success'),
         (e) => console.error(e),

packages/mindplot/src/components/export/BinaryImageExporter.ts

@@ -44,7 +44,7 @@ class BinaryImageExporter extends Exporter {
   }
 
   export(): Promise<string> {
-    throw new Error('Images can not be exporeted');
+    throw new Error('Images can not be exported');
   }
 
   exportAndEncode(): Promise<string> {

packages/mindplot/src/components/export/Exporter.ts

@@ -25,12 +25,10 @@ abstract class Exporter {
     this._contentType = contentType;
   }
 
-  exportAndEncode(): Promise<string> {
-    const exportValue = this.export();
-    return exportValue.then((value: string) => {
-      const blob = new Blob([value], { type: this._contentType });
-      return URL.createObjectURL(blob);
-    });
+  async exportAndEncode(): Promise<string> {
+    const exportValue = await this.export();
+    const blob = new Blob([exportValue], { type: this._contentType });
+    return URL.createObjectURL(blob);
   }
 
   abstract export(): Promise<string>;

packages/webapp/src/components/maps-page/action-dispatcher/export-dialog/index.tsx

@@ -127,8 +127,10 @@ const ExportDialog = ({
         exporter = TextExporterFactory.create(formatType, mindmap);
         break;
       }
-      default:
-        throw new Error('Unsupported encoding');
+      default: {
+        const exhaustiveCheck: never = formatType;
+        throw new Error(`Unhandled color case: ${exhaustiveCheck}`);
+      }
     }
 
     return exporter.exportAndEncode();