web/src/Routes.js

@@ -47,6 +47,7 @@ const Routes = () => {
       </Private>
       {/* End ownership enforced routes */}
 
+      <Route path="/draft" page={DraftPartPage} name="draftPart" />
       <Route path="/u/{userName}" page={UserPage} name="user" />
       <Route path="/u/{userName}/{partTitle}" page={PartPage} name="part" />
       <Route path="/u/{userName}/{partTitle}/ide" page={IdePartPage} name="ide" />

web/src/components/IdeCascadeStudio/IdeCascadeStudio.js

@@ -1,26 +1,47 @@
 import { useAuth } from '@redwoodjs/auth'
-import { Link, routes } from '@redwoodjs/router'
 import CascadeController from 'src/helpers/cascadeController'
 import IdeToolbar from 'src/components/IdeToolbar'
 import { useEffect, useState } from 'react'
 
+const defaultExampleCode = `// Welcome to Cascade Studio!   Here are some useful functions:
+//  Translate(), Rotate(), Scale(), Union(), Difference(), Intersection()
+//  Box(), Sphere(), Cylinder(), Cone(), Text3D(), Polygon()
+//  Offset(), Extrude(), RotatedExtrude(), Revolve(), Pipe(), Loft(),
+//  FilletEdges(), ChamferEdges(),
+//  Slider(), Button(), Checkbox()
+
+let holeRadius = Slider("Radius", 30 , 20 , 40);
+
+let sphere     = Sphere(50);
+let cylinderZ  =                     Cylinder(holeRadius, 200, true);
+let cylinderY  = Rotate([0,1,0], 90, Cylinder(holeRadius, 200, true));
+let cylinderX  = Rotate([1,0,0], 90, Cylinder(holeRadius, 200, true));
+
+Translate([0, 0, 50], Difference(sphere, [cylinderX, cylinderY, cylinderZ]));
+
+Translate([-130, 0, 100], Text3D("Start Hacking"));
+
+// Don't forget to push imported or oc-defined shapes into sceneShapes to add them to the workspace!`
+
 const IdeCascadeStudio = ({ part, saveCode, loading }) => {
-  const [code, setCode] = useState(part.code)
+  const isDraft = !part
+  const [code, setCode] = useState(isDraft ? defaultExampleCode : part.code)
   const { currentUser } = useAuth()
   const canEdit = currentUser?.sub === part?.user?.id
   useEffect(() => {
     // Cascade studio attaches "cascade-container" a div outside the react app in 'web/src/index.html', and so we are
     // "opening" and "closing" it for the ide part of the app by displaying none or block. Which is why this useEffect
     // returns a clean up function that hides the div again.
+    setCode(part?.code || '')
     const onCodeChange = (code) => setCode(code)
-    CascadeController.initialise(onCodeChange, part.code)
+    CascadeController.initialise(onCodeChange, code || '')
     const element = document.getElementById('cascade-container')
     element.setAttribute('style', 'display: block; opacity: 100%; overflow: hidden; height: calc(100vh - 8rem)') // eslint-disable-line
     return () => {
       element.setAttribute('style',  'display: none; overflow: hidden; height: calc(100vh - 8rem)') // eslint-disable-line
     }
-  }, [part.code])
-  const isChanges = code !== part.code
+  }, [part?.code])
+  const isChanges = code !== part?.code
 
   return (
     <>
@@ -28,6 +49,8 @@ const IdeCascadeStudio = ({ part, saveCode, loading }) => {
         <IdeToolbar
           canEdit={canEdit}
           isChanges={isChanges && !loading}
+          isDraft={isDraft}
+          code={code}
           onSave={() => {
             saveCode({
               input: {
@@ -42,8 +65,8 @@ const IdeCascadeStudio = ({ part, saveCode, loading }) => {
           }}
           onExport={(type) => threejsViewport[`saveShape${type}`]()}
           userNamePart={{
-            userName: part.user.userName,
-            partTitle: part.title,
+            userName: part?.user?.userName,
+            partTitle: part?.title,
             image: part?.user?.image,
           }}
         />

web/src/components/IdePartCell/IdePartCell.js

@@ -27,7 +27,7 @@ const UPDATE_PART_MUTATION = gql`
     }
   }
 `
-const FORK_PART_MUTATION = gql`
+export const FORK_PART_MUTATION = gql`
   mutation ForkPartMutation($input: CreatePartInput!) {
     forkPart(input: $input) {
       id
@@ -62,9 +62,9 @@ export const Success = ({ part, refetch }) => {
     },
   })
 
-  const saveCode = ({ input, id, isFork }) => {
+  const saveCode = async ({ input, id, isFork }) => {
     if (!isFork) {
-      updatePart({ variables: { id, input } })
+      await updatePart({ variables: { id, input } })
       refetch()
       return
     }

web/src/components/IdeToolbar/IdeToolbar.js

@@ -4,17 +4,43 @@ import OutBound from 'src/components/OutBound'
 import ReactGA from 'react-ga'
 import { Link, routes, navigate } from '@redwoodjs/router'
 import { useAuth } from '@redwoodjs/auth'
+import { useMutation, useFlash } from '@redwoodjs/web'
 
 import Button from 'src/components/Button'
 import ImageUploader from 'src/components/ImageUploader'
 import Svg from '../Svg/Svg'
-import LoginModal from '../LoginModal/LoginModal'
+import LoginModal from 'src/components/LoginModal'
+import { FORK_PART_MUTATION } from 'src/components/IdePartCell'
 
-const IdeToolbar = ({ canEdit, isChanges, onSave, onExport, userNamePart }) => {
+const IdeToolbar = ({
+  canEdit,
+  isChanges,
+  onSave,
+  onExport,
+  userNamePart,
+  isDraft,
+  code,
+}) => {
   const [anchorEl, setAnchorEl] = useState(null)
   const [whichPopup, setWhichPopup] = useState(null)
   const [isLoginModalOpen, setIsLoginModalOpen] = useState(false)
-  const { isAuthenticated } = useAuth()
+  const { isAuthenticated, currentUser } = useAuth()
+  const showForkButton = !(canEdit || isDraft)
+
+  const { addMessage } = useFlash()
+  const [forkPart] = useMutation(FORK_PART_MUTATION, {
+    onCompleted: ({ forkPart }) => {
+      navigate(
+        routes.ide({
+          userName: forkPart?.user?.userName,
+          partTitle: forkPart?.title,
+        })
+      )
+      addMessage(`Part created with title: ${forkPart?.title}.`, {
+        classes: 'rw-flash-success',
+      })
+    },
+  })
 
   const handleClick = ({ event, whichPopup }) => {
     setAnchorEl(event.currentTarget)
@@ -27,7 +53,17 @@ const IdeToolbar = ({ canEdit, isChanges, onSave, onExport, userNamePart }) => {
   }
 
   const handleSave = () => {
-    if (isAuthenticated) onSave()
+    if (isDraft && isAuthenticated)
+      forkPart({
+        variables: {
+          input: {
+            userId: currentUser.sub,
+            title: 'draft',
+            code,
+          },
+        },
+      })
+    else if (isAuthenticated) onSave()
     else recordedLogin()
   }
 
@@ -55,39 +91,43 @@ const IdeToolbar = ({ canEdit, isChanges, onSave, onExport, userNamePart }) => {
       id="cadhub-ide-toolbar"
       className="flex bg-gradient-to-r from-gray-900 to-indigo-900 pt-1"
     >
-      <div className="flex items-center">
-        <div className="h-8 w-8 ml-4">
-          <ImageUploader
-            className="rounded-full object-cover"
-            aspectRatio={1}
-            imageUrl={userNamePart?.image}
-            width={80}
-          />
-        </div>
-        <div className="text-indigo-400 ml-2 mr-8">
-          <Link to={routes.user({ userName: userNamePart?.userName })}>
-            {userNamePart?.userName}
-          </Link>
-        </div>
-      </div>
+      {!isDraft && (
+        <>
+          <div className="flex items-center">
+            <div className="h-8 w-8 ml-4">
+              <ImageUploader
+                className="rounded-full object-cover"
+                aspectRatio={1}
+                imageUrl={userNamePart?.image}
+                width={80}
+              />
+            </div>
+            <div className="text-indigo-400 ml-2 mr-8">
+              <Link to={routes.user({ userName: userNamePart?.userName })}>
+                {userNamePart?.userName}
+              </Link>
+            </div>
+          </div>
+          <Button
+            iconName="arrow-left"
+            className="ml-3 shadow-md hover:shadow-lg border-indigo-600 border-2 border-opacity-0 hover:border-opacity-100 bg-indigo-800 text-indigo-200"
+            shouldAnimateHover
+            onClick={() => {
+              navigate(routes.part(userNamePart))
+            }}
+          >
+            Part Profile
+          </Button>
+        </>
+      )}
       <Button
-        iconName="arrow-left"
-        className="ml-3 shadow-md hover:shadow-lg border-indigo-600 border-2 border-opacity-0 hover:border-opacity-100 bg-indigo-800 text-indigo-200"
-        shouldAnimateHover
-        onClick={() => {
-          navigate(routes.part(userNamePart))
-        }}
-      >
-        Part Profile
-      </Button>
-      <Button
-        iconName={canEdit ? 'save' : 'fork'}
+        iconName={showForkButton ? 'fork' : 'save'}
         className="ml-3 shadow-md hover:shadow-lg border-indigo-600 border-2 border-opacity-0 hover:border-opacity-100 bg-indigo-800 text-indigo-200"
         shouldAnimateHover
         onClick={handleSave}
       >
-        {canEdit ? 'Save' : 'Fork'}
-        {isChanges && (
+        {showForkButton ? 'Fork' : 'Save'}
+        {isChanges && !isDraft && (
           <span className="relative h-4">
             <span className="text-pink-400 text-2xl absolute transform -translate-y-3">
               *

web/src/components/PartCell/PartCell.js

@@ -117,7 +117,7 @@ export const Success = ({ userPart, variables: { isEditable }, refetch }) => {
       addMessage('Part updated.', { classes: 'rw-flash-success' })
     },
   })
-  const [createUser] = useMutation(CREATE_PART_MUTATION, {
+  const [createPart] = useMutation(CREATE_PART_MUTATION, {
     onCompleted: ({ createPart }) => {
       navigate(
         routes.part({
@@ -130,7 +130,7 @@ export const Success = ({ userPart, variables: { isEditable }, refetch }) => {
   })
   const onSave = (id, input) => {
     if (!id) {
-      createUser({ variables: { input } })
+      createPart({ variables: { input } })
       return
     }
     updateUser({ variables: { id, input } })

web/src/layouts/MainLayout/MainLayout.js

@@ -137,20 +137,12 @@ const MainLayout = ({ children, shouldRemoveFooterInIde }) => {
           <ul className="flex items-center">
             <li
               className={getActiveClasses(
-                'mr-8 h-10 w-10 rounded-full border-2 border-gray-700 flex items-center justify-center',
-                { 'border-indigo-300': currentUser }
+                'mr-8 h-10 w-10 rounded-full border-2 border-indigo-300 flex items-center justify-center'
               )}
             >
-              {isAuthenticated && data?.user?.userName ? (
-                <Link
-                  className="h-full w-full"
-                  to={routes.newPart({ userName: data?.user?.userName })}
-                >
-                  <Svg name="plus" className="text-indigo-300 w-full h-full" />
-                </Link>
-              ) : (
-                <Svg name="plus" className="text-gray-700 w-full h-full" />
-              )}
+              <Link className="h-full w-full" to={routes.draftPart()}>
+                <Svg name="plus" className="text-indigo-300 w-full h-full" />
+              </Link>
             </li>
             {isAuthenticated ? (
               <li

web/src/pages/DraftPartPage/DraftPartPage.js

@@ -0,0 +1,18 @@
+import MainLayout from 'src/layouts/MainLayout'
+import IdeCascadeStudio from 'src/components/IdeCascadeStudio'
+import Seo from 'src/components/Seo/Seo'
+
+const DraftPartPage = () => {
+  return (
+    <MainLayout shouldRemoveFooterInIde>
+      <Seo
+        title="draft part"
+        description="black slate to hack on a new part"
+        lang="en-US"
+      />
+      <IdeCascadeStudio />
+    </MainLayout>
+  )
+}
+
+export default DraftPartPage

web/src/pages/DraftPartPage/DraftPartPage.stories.js

@@ -0,0 +1,7 @@
+import DraftPartPage from './DraftPartPage'
+
+export const generated = () => {
+  return <DraftPartPage />
+}
+
+export default { title: 'Pages/DraftPartPage' }

web/src/pages/DraftPartPage/DraftPartPage.test.js

@@ -0,0 +1,11 @@
+import { render } from '@redwoodjs/testing'
+
+import DraftPartPage from './DraftPartPage'
+
+describe('DraftPartPage', () => {
+  it('renders successfully', () => {
+    expect(() => {
+      render(<DraftPartPage />)
+    }).not.toThrow()
+  })
+})