Implement export as SVG + improve style

src/Components/FloatingButton/FloatingButton.tsx

@@ -15,14 +15,14 @@ const toggleState = (
 
 const FloatingButton: React.FC<IFloatingButtonProps> = (props: IFloatingButtonProps) => {
   const [isHidden, setHidden] = React.useState(true);
-  const buttonListClasses = isHidden ? 'opacity-0' : 'opacity-100';
+  const buttonListClasses = isHidden ? 'invisible opacity-0' : 'visible opacity-100';
   const icon = isHidden
     ? <MenuIcon className="floating-btn" />
     : <XIcon className="floating-btn" />;
 
   return (
     <div className={props.className}>
-      <div className={`transition-all ${buttonListClasses}`}>
+      <div className={`transition-all flex flex-col gap-2 items-center ${buttonListClasses}`}>
         { props.children }
       </div>
       <button

src/Components/SVG/SVG.tsx

@@ -18,6 +18,7 @@ interface ISVGState {
 
 export class SVG extends React.PureComponent<ISVGProps> {
   public state: ISVGState;
+  public static ID = 'svg';
 
   constructor(props: ISVGProps) {
     super(props);
@@ -47,25 +48,28 @@ export class SVG extends React.PureComponent<ISVGProps> {
     }
 
     return (
-      <ReactSVGPanZoom
-        width={window.innerWidth}
-        height={window.innerHeight}
-        background={'#ffffff'}
-        defaultTool='pan'
-        value={this.state.value} onChangeValue={value => this.setState({ value })}
-        tool={this.state.tool} onChangeTool={tool => this.setState({ tool })}
-        miniatureProps={{
-          position: 'left',
-          background: '#616264',
-          width: window.innerWidth - 12,
-          height: 120
-        }}
-      >
-        <svg {...properties}>
-          { children }
-          <Selector selected={this.props.selected} />
-        </svg>
-      </ReactSVGPanZoom>
+      <div id={SVG.ID}>
+        <ReactSVGPanZoom
+          width={window.innerWidth}
+          height={window.innerHeight}
+          background={'#ffffff'}
+          defaultTool='pan'
+          value={this.state.value} onChangeValue={value => this.setState({ value })}
+          tool={this.state.tool} onChangeTool={tool => this.setState({ tool })}
+          miniatureProps={{
+            position: 'left',
+            background: '#616264',
+            width: window.innerWidth - 12,
+            height: 120
+          }}
+        >
+          <svg {...properties}>
+            { children }
+            <Selector selected={this.props.selected} />
+          </svg>
+        </ReactSVGPanZoom>
+      </div>
+
     );
   };
 }

src/Editor.tsx

@@ -1,5 +1,5 @@
 import React from 'react';
-import { UploadIcon } from '@heroicons/react/outline';
+import { UploadIcon, PhotographIcon } from '@heroicons/react/outline';
 import './Editor.scss';
 import Sidebar from './Components/Sidebar/Sidebar';
 import { ElementsSidebar } from './Components/ElementsSidebar/ElementsSidebar';
@@ -258,7 +258,7 @@ class Editor extends React.Component<IEditorProps> {
     } as IEditorState);
   }
 
-  public SaveEditor() {
+  public SaveEditorAsJSON() {
     const exportName = 'state';
     const spaces = import.meta.env.DEV ? 4 : 0;
     const data = JSON.stringify(this.state, getCircularReplacer(), spaces);
@@ -271,6 +271,20 @@ class Editor extends React.Component<IEditorProps> {
     downloadAnchorNode.remove();
   }
 
+  public SaveEditorAsSVG() {
+    const svgWrapper = document.getElementById(SVG.ID) as HTMLElement;
+    const svg = svgWrapper.querySelector('svg') as SVGSVGElement;
+    const preface = '<?xml version="1.0" standalone="no"?>\r\n';
+    const svgBlob = new Blob([preface, svg.outerHTML], { type: 'image/svg+xml;charset=utf-8' });
+    const svgUrl = URL.createObjectURL(svgBlob);
+    const downloadLink = document.createElement('a');
+    downloadLink.href = svgUrl;
+    downloadLink.download = 'newesttree.svg';
+    document.body.appendChild(downloadLink);
+    downloadLink.click();
+    document.body.removeChild(downloadLink);
+  }
+
   /**
    * Render the application
    * @returns {JSX.Element} Rendered JSX element
@@ -339,10 +353,17 @@ class Editor extends React.Component<IEditorProps> {
           <button
             className={'transition-all w-10 h-10 p-2 align-middle items-center justify-center rounded-full bg-blue-500 hover:bg-blue-800'}
             title='Export as JSON'
-            onClick={() => this.SaveEditor()}
+            onClick={() => this.SaveEditorAsJSON()}
           >
             <UploadIcon className="h-full w-full text-white align-middle items-center justify-center" />
           </button>
+          <button
+            className={'transition-all w-10 h-10 p-2 align-middle items-center justify-center rounded-full bg-blue-500 hover:bg-blue-800'}
+            title='Export as SVG'
+            onClick={() => this.SaveEditorAsSVG()}
+          >
+            <PhotographIcon className="h-full w-full text-white align-middle items-center justify-center" />
+          </button>
         </FloatingButton>
 
       </div>