Implement export as SVG (#14)

Reviewed-on: https://git.siklos-chaneru.duckdns.org/Siklos/svg-layout-designer-react/pulls/14

src/Components/FloatingButton/FloatingButton.tsx

@@ -1,10 +1,38 @@
 import * as React from 'react';
+import { MenuIcon, XIcon } from '@heroicons/react/outline';
 
 interface IFloatingButtonProps {
+  children: React.ReactNode[] | React.ReactNode
+  className: string
 }
 
+const toggleState = (
+  isHidden: boolean,
+  setHidden: React.Dispatch<React.SetStateAction<boolean>>
+) => {
+  setHidden(!isHidden);
+};
+
 const FloatingButton: React.FC<IFloatingButtonProps> = (props: IFloatingButtonProps) => {
-  return <></>;
+  const [isHidden, setHidden] = React.useState(true);
+  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 flex flex-col gap-2 items-center ${buttonListClasses}`}>
+        { props.children }
+      </div>
+      <button
+        className={'transition-all w-14 h-14 p-2 align-middle items-center justify-center rounded-full bg-blue-500 hover:bg-blue-800'}
+        title='Open menu'
+        onClick={() => toggleState(isHidden, setHidden)}
+      >
+        { icon }
+      </button>
+    </div>);
 };
 
 export default FloatingButton;

src/Components/SVG/SVG.tsx

@@ -18,7 +18,7 @@ interface ISVGState {
 
 export class SVG extends React.PureComponent<ISVGProps> {
   public state: ISVGState;
-  public svg: React.RefObject<SVGSVGElement>;
+  public static ID = 'svg';
 
   constructor(props: ISVGProps) {
     super(props);
@@ -29,7 +29,6 @@ export class SVG extends React.PureComponent<ISVGProps> {
       } as Value,
       tool: TOOL_PAN
     };
-    this.svg = React.createRef<SVGSVGElement>();
   }
 
   render() {
@@ -49,6 +48,7 @@ export class SVG extends React.PureComponent<ISVGProps> {
     }
 
     return (
+      <div id={SVG.ID}>
         <ReactSVGPanZoom
           width={window.innerWidth}
           height={window.innerHeight}
@@ -63,11 +63,13 @@ export class SVG extends React.PureComponent<ISVGProps> {
             height: 120
           }}
         >
-        <svg ref={this.svg} {...properties}>
+          <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';
@@ -9,6 +9,7 @@ import { History } from './Components/History/History';
 import { ContainerModel, findContainerById, IContainerModel, MakeIterator } from './Interfaces/ContainerModel';
 import Properties from './Interfaces/Properties';
 import { IHistoryState } from './App';
+import FloatingButton from './Components/FloatingButton/FloatingButton';
 
 interface IEditorProps {
   configuration: Configuration,
@@ -257,7 +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);
@@ -270,6 +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
@@ -334,13 +349,23 @@ class Editor extends React.Component<IEditorProps> {
         >
           { current.MainContainer }
         </SVG>
+        <FloatingButton className={`fixed flex flex-col gap-2 items-center bottom-40 ${buttonRightOffsetClasses}`}>
           <button
-          className={`fixed transition-all ${buttonRightOffsetClasses} bottom-40 w-14 h-14 p-2 align-middle items-center justify-center rounded-full bg-blue-500 hover:bg-blue-800`}
+            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>
     );
   }

src/index.scss

@@ -15,4 +15,7 @@
   .mainmenu-btn {
     @apply transition-all bg-blue-100 hover:bg-blue-200 text-blue-700 text-lg font-semibold p-8  rounded-lg
   }
+  .floating-btn {
+    @apply h-full w-full text-white align-middle items-center justify-center
+  }
 }