Merge pull request #3882 from paulkaplan/selective-auto-start

Green flag overlay to start in player mode

src/components/stage/stage.css

@@ -89,7 +89,10 @@ to adjust for the border using a different method */
     padding-bottom: calc($stage-full-screen-stage-padding + $stage-full-screen-border-width);
 }
 
-.monitor-wrapper, .color-picker-wrapper, .frame-wrapper {
+.monitor-wrapper,
+.color-picker-wrapper,
+.frame-wrapper,
+.green-flag-overlay-wrapper {
     position: absolute;
     top: 0;
     left: 0;
@@ -138,6 +141,36 @@ to adjust for the border using a different method */
     animation-fill-mode: forwards; /* Leave at 0 opacity after animation */
 }
 
+.green-flag-overlay-wrapper {
+    display: flex;
+    justify-content: center;
+    align-items: center;
+    background: rgba(0,0,0,0.25);
+    border-radius: 0.5rem;
+}
+
+.green-flag-overlay {
+    padding: 1rem;
+    border-radius: 100%;
+    background: rgba(255,255,255,0.75);
+    border: 3px solid $ui-white;
+    pointer-events: all;
+    cursor: pointer;
+    display: flex;
+    justify-content: center;
+    align-items: center;
+    box-sizing: border-box;
+    width: 5rem;
+    height: 5rem;
+}
+
+.green-flag-overlay > img {
+    width: 100%;
+    object-fit: contain;
+}
+
+
+
 @keyframes flash {
     0% { opacity: 1; }
     100% { opacity: 0; }

src/components/stage/stage.jsx

@@ -7,6 +7,7 @@ import DOMElementRenderer from '../../containers/dom-element-renderer.jsx';
 import Loupe from '../loupe/loupe.jsx';
 import MonitorList from '../../containers/monitor-list.jsx';
 import TargetHighlight from '../../containers/target-highlight.jsx';
+import GreenFlagOverlay from '../../containers/green-flag-overlay.jsx';
 import Question from '../../containers/question.jsx';
 import MicIndicator from '../mic-indicator/mic-indicator.jsx';
 import {STAGE_DISPLAY_SIZES} from '../../lib/layout-constants.js';
@@ -71,6 +72,11 @@ const StageComponent = props => {
                         stageWidth={stageDimensions.width}
                     />
                 </Box>
+                <Box className={styles.greenFlagOverlayWrapper}>
+                    <GreenFlagOverlay
+                        className={styles.greenFlagOverlay}
+                    />
+                </Box>
                 {isColorPicking && colorInfo ? (
                     <Box className={styles.colorPickerWrapper}>
                         <Loupe colorInfo={colorInfo} />

src/containers/controls.jsx

@@ -20,6 +20,9 @@ class Controls extends React.Component {
         if (e.shiftKey) {
             this.props.vm.setTurboMode(!this.props.turbo);
         } else {
+            if (!this.props.isStarted) {
+                this.props.vm.start();
+            }
             this.props.vm.greenFlag();
             analytics.event({
                 category: 'general',
@@ -38,6 +41,7 @@ class Controls extends React.Component {
     render () {
         const {
             vm, // eslint-disable-line no-unused-vars
+            isStarted, // eslint-disable-line no-unused-vars
             projectRunning,
             turbo,
             ...props
@@ -55,12 +59,14 @@ class Controls extends React.Component {
 }
 
 Controls.propTypes = {
+    isStarted: PropTypes.bool.isRequired,
     projectRunning: PropTypes.bool.isRequired,
     turbo: PropTypes.bool.isRequired,
     vm: PropTypes.instanceOf(VM)
 };
 
 const mapStateToProps = state => ({
+    isStarted: state.scratchGui.vmStatus.running,
     projectRunning: state.scratchGui.vmStatus.running,
     turbo: state.scratchGui.vmStatus.turbo
 });

src/containers/green-flag-overlay.jsx

@@ -0,0 +1,55 @@
+import bindAll from 'lodash.bindall';
+import React from 'react';
+import PropTypes from 'prop-types';
+
+import {connect} from 'react-redux';
+import VM from 'scratch-vm';
+import greenFlag from '../components/green-flag/icon--green-flag.svg';
+
+class GreenFlagOverlay extends React.Component {
+    constructor (props) {
+        super(props);
+        bindAll(this, [
+            'handleClick'
+        ]);
+    }
+
+    handleClick () {
+        this.props.vm.start();
+        this.props.vm.greenFlag();
+    }
+
+    render () {
+        if (this.props.isStarted) return null;
+
+        return (
+            <div
+                className={this.props.className}
+                onClick={this.handleClick}
+            >
+                <img
+                    draggable={false}
+                    src={greenFlag}
+                />
+            </div>
+        );
+    }
+}
+
+GreenFlagOverlay.propTypes = {
+    className: PropTypes.string,
+    isStarted: PropTypes.bool,
+    vm: PropTypes.instanceOf(VM)
+};
+
+const mapStateToProps = state => ({
+    isStarted: state.scratchGui.vmStatus.started,
+    vm: state.scratchGui.vm
+});
+
+const mapDispatchToProps = () => ({});
+
+export default connect(
+    mapStateToProps,
+    mapDispatchToProps
+)(GreenFlagOverlay);

src/containers/green-flag.jsx

@@ -1,60 +0,0 @@
-import bindAll from 'lodash.bindall';
-import PropTypes from 'prop-types';
-import React from 'react';
-
-import VM from 'scratch-vm';
-
-import GreenFlagComponent from '../components/green-flag/green-flag.jsx';
-
-class GreenFlag extends React.Component {
-    constructor (props) {
-        super(props);
-        bindAll(this, [
-            'handleClick',
-            'onProjectRunStart',
-            'onProjectRunStop'
-        ]);
-        this.state = {projectRunning: false};
-    }
-    componentDidMount () {
-        this.props.vm.addListener('PROJECT_RUN_START', this.onProjectRunStart);
-        this.props.vm.addListener('PROJECT_RUN_STOP', this.onProjectRunStop);
-    }
-    componentWillUnmount () {
-        this.props.vm.removeListener('PROJECT_RUN_START', this.onProjectRunStart);
-        this.props.vm.removeListener('PROJECT_RUN_STOP', this.onProjectRunStop);
-    }
-    onProjectRunStart () {
-        this.setState({projectRunning: true});
-    }
-    onProjectRunStop () {
-        this.setState({projectRunning: false});
-    }
-    handleClick (e) {
-        e.preventDefault();
-        if (e.shiftKey) {
-            this.props.vm.setTurboMode(!this.props.vm.runtime.turboMode);
-        } else {
-            this.props.vm.greenFlag();
-        }
-    }
-    render () {
-        const {
-            vm, // eslint-disable-line no-unused-vars
-            ...props
-        } = this.props;
-        return (
-            <GreenFlagComponent
-                active={this.state.projectRunning}
-                onClick={this.handleClick}
-                {...props}
-            />
-        );
-    }
-}
-
-GreenFlag.propTypes = {
-    vm: PropTypes.instanceOf(VM)
-};
-
-export default GreenFlag;

src/containers/stage.jsx

@@ -59,6 +59,12 @@ class Stage extends React.Component {
             this.canvas = document.createElement('canvas');
             this.renderer = new Renderer(this.canvas);
             this.props.vm.attachRenderer(this.renderer);
+
+            // Calling draw a single time before any project is loaded just makes
+            // the canvas white instead of solid black–needed because it is not
+            // possible to use CSS to style the canvas to have a different
+            // default color
+            this.props.vm.renderer.draw();
         }
         this.props.vm.attachV2SVGAdapter(new V2SVGAdapter());
         this.props.vm.attachV2BitmapAdapter(new V2BitmapAdapter());

src/containers/stop-all.jsx

@@ -1,55 +0,0 @@
-import bindAll from 'lodash.bindall';
-import PropTypes from 'prop-types';
-import React from 'react';
-import VM from 'scratch-vm';
-
-import StopAllComponent from '../components/stop-all/stop-all.jsx';
-
-class StopAll extends React.Component {
-    constructor (props) {
-        super(props);
-        bindAll(this, [
-            'handleClick',
-            'onProjectRunStart',
-            'onProjectRunStop'
-        ]);
-        this.state = {projectRunning: false};
-    }
-    componentDidMount () {
-        this.props.vm.addListener('PROJECT_RUN_START', this.onProjectRunStart);
-        this.props.vm.addListener('PROJECT_RUN_STOP', this.onProjectRunStop);
-    }
-    componentWillUnmount () {
-        this.props.vm.removeListener('PROJECT_RUN_START', this.onProjectRunStart);
-        this.props.vm.removeListener('PROJECT_RUN_STOP', this.onProjectRunStop);
-    }
-    onProjectRunStart () {
-        this.setState({projectRunning: true});
-    }
-    onProjectRunStop () {
-        this.setState({projectRunning: false});
-    }
-    handleClick (e) {
-        e.preventDefault();
-        this.props.vm.stopAll();
-    }
-    render () {
-        const {
-            vm, // eslint-disable-line no-unused-vars
-            ...props
-        } = this.props;
-        return (
-            <StopAllComponent
-                active={!this.state.projectRunning}
-                onClick={this.handleClick}
-                {...props}
-            />
-        );
-    }
-}
-
-StopAll.propTypes = {
-    vm: PropTypes.instanceOf(VM)
-};
-
-export default StopAll;

src/lib/vm-listener-hoc.jsx

@@ -8,7 +8,7 @@ import {connect} from 'react-redux';
 import {updateTargets} from '../reducers/targets';
 import {updateBlockDrag} from '../reducers/block-drag';
 import {updateMonitors} from '../reducers/monitors';
-import {setRunningState, setTurboState} from '../reducers/vm-status';
+import {setRunningState, setTurboState, setStartedState} from '../reducers/vm-status';
 import {showExtensionAlert} from '../reducers/alerts';
 import {updateMicIndicator} from '../reducers/mic-indicator';
 
@@ -39,6 +39,7 @@ const vmListenerHOC = function (WrappedComponent) {
             this.props.vm.on('TURBO_MODE_OFF', this.props.onTurboModeOff);
             this.props.vm.on('PROJECT_RUN_START', this.props.onProjectRunStart);
             this.props.vm.on('PROJECT_RUN_STOP', this.props.onProjectRunStop);
+            this.props.vm.on('RUNTIME_STARTED', this.props.onRuntimeStarted);
             this.props.vm.on('PERIPHERAL_DISCONNECT_ERROR', this.props.onShowExtensionAlert);
             this.props.vm.on('MIC_LISTENING', this.props.onMicListeningUpdate);
 
@@ -110,6 +111,7 @@ const vmListenerHOC = function (WrappedComponent) {
                 onTargetsUpdate,
                 onProjectRunStart,
                 onProjectRunStop,
+                onRuntimeStarted,
                 onTurboModeOff,
                 onTurboModeOn,
                 onShowExtensionAlert,
@@ -128,6 +130,7 @@ const vmListenerHOC = function (WrappedComponent) {
         onMonitorsUpdate: PropTypes.func.isRequired,
         onProjectRunStart: PropTypes.func.isRequired,
         onProjectRunStop: PropTypes.func.isRequired,
+        onRuntimeStarted: PropTypes.func.isRequired,
         onShowExtensionAlert: PropTypes.func.isRequired,
         onTargetsUpdate: PropTypes.func.isRequired,
         onTurboModeOff: PropTypes.func.isRequired,
@@ -158,6 +161,7 @@ const vmListenerHOC = function (WrappedComponent) {
         },
         onProjectRunStart: () => dispatch(setRunningState(true)),
         onProjectRunStop: () => dispatch(setRunningState(false)),
+        onRuntimeStarted: () => dispatch(setStartedState(true)),
         onTurboModeOn: () => dispatch(setTurboState(true)),
         onTurboModeOff: () => dispatch(setTurboState(false)),
         onShowExtensionAlert: data => {

src/lib/vm-manager-hoc.jsx

@@ -27,12 +27,15 @@ const vmManagerHOC = function (WrappedComponent) {
             ]);
         }
         componentDidMount () {
-            if (this.props.vm.initialized) return;
-            this.audioEngine = new AudioEngine();
-            this.props.vm.attachAudioEngine(this.audioEngine);
-            this.props.vm.setCompatibilityMode(true);
-            this.props.vm.start();
-            this.props.vm.initialized = true;
+            if (!this.props.vm.initialized) {
+                this.audioEngine = new AudioEngine();
+                this.props.vm.attachAudioEngine(this.audioEngine);
+                this.props.vm.setCompatibilityMode(true);
+                this.props.vm.initialized = true;
+            }
+            if (!this.props.isPlayerOnly && !this.props.isStarted) {
+                this.props.vm.start();
+            }
         }
         componentDidUpdate (prevProps) {
             // if project is in loading state, AND fonts are loaded,
@@ -41,11 +44,26 @@ const vmManagerHOC = function (WrappedComponent) {
                 (!prevProps.isLoadingWithId || !prevProps.fontsLoaded)) {
                 this.loadProject();
             }
+            // Start the VM if entering editor mode with an unstarted vm
+            if (!this.props.isPlayerOnly && !this.props.isStarted) {
+                this.props.vm.start();
+            }
         }
         loadProject () {
             return this.props.vm.loadProject(this.props.projectData)
                 .then(() => {
                     this.props.onLoadedProject(this.props.loadingState, this.props.canSave);
+
+                    // If the vm is not running, call draw on the renderer manually
+                    // This draws the state of the loaded project with no blocks running
+                    // which closely matches the 2.0 behavior, except for monitors–
+                    // 2.0 runs monitors and shows updates (e.g. timer monitor)
+                    // before the VM starts running other hat blocks.
+                    if (!this.props.isStarted) {
+                        // Wrap in a setTimeout because skin loading in
+                        // the renderer can be async.
+                        setTimeout(() => this.props.vm.renderer.draw());
+                    }
                 })
                 .catch(e => {
                     this.props.onError(e);
@@ -56,6 +74,7 @@ const vmManagerHOC = function (WrappedComponent) {
                 /* eslint-disable no-unused-vars */
                 fontsLoaded,
                 loadingState,
+                isStarted,
                 onError: onErrorProp,
                 onLoadedProject: onLoadedProjectProp,
                 projectData,
@@ -79,6 +98,7 @@ const vmManagerHOC = function (WrappedComponent) {
         cloudHost: PropTypes.string,
         fontsLoaded: PropTypes.bool,
         isLoadingWithId: PropTypes.bool,
+        isPlayerOnly: PropTypes.bool,
         loadingState: PropTypes.oneOf(LoadingStates),
         onError: PropTypes.func,
         onLoadedProject: PropTypes.func,
@@ -94,7 +114,9 @@ const vmManagerHOC = function (WrappedComponent) {
             isLoadingWithId: getIsLoadingWithId(loadingState),
             projectData: state.scratchGui.projectState.projectData,
             projectId: state.scratchGui.projectState.projectId,
-            loadingState: loadingState
+            loadingState: loadingState,
+            isPlayerOnly: state.scratchGui.mode.isPlayerOnly,
+            isStarted: state.scratchGui.vmStatus.started
         };
     };
 

src/reducers/vm-status.js

@@ -1,14 +1,20 @@
 const SET_RUNNING_STATE = 'scratch-gui/vm-status/SET_RUNNING_STATE';
 const SET_TURBO_STATE = 'scratch-gui/vm-status/SET_TURBO_STATE';
+const SET_STARTED_STATE = 'scratch-gui/vm-status/SET_STARTED_STATE';
 
 const initialState = {
     running: false,
+    started: false,
     turbo: false
 };
 
 const reducer = function (state, action) {
     if (typeof state === 'undefined') state = initialState;
     switch (action.type) {
+    case SET_STARTED_STATE:
+        return Object.assign({}, state, {
+            started: action.started
+        });
     case SET_RUNNING_STATE:
         return Object.assign({}, state, {
             running: action.running
@@ -22,6 +28,14 @@ const reducer = function (state, action) {
     }
 };
 
+const setStartedState = function (started) {
+    return {
+        type: SET_STARTED_STATE,
+        started: started
+    };
+};
+
+
 const setRunningState = function (running) {
     return {
         type: SET_RUNNING_STATE,
@@ -40,5 +54,6 @@ export {
     reducer as default,
     initialState as vmStatusInitialState,
     setRunningState,
+    setStartedState,
     setTurboState
 };

test/unit/containers/__snapshots__/green-flag.test.jsx.snap

@@ -1,21 +0,0 @@
-// Jest Snapshot v1, https://goo.gl/fbAQLP
-
-exports[`GreenFlag Container renders active state 1`] = `
-<img
-  className="undefined"
-  draggable={false}
-  onClick={[Function]}
-  src="test-file-stub"
-  title="Go"
-/>
-`;
-
-exports[`GreenFlag Container renders inactive state 1`] = `
-<img
-  className=""
-  draggable={false}
-  onClick={[Function]}
-  src="test-file-stub"
-  title="Go"
-/>
-`;

test/unit/containers/green-flag.test.jsx

@@ -1,49 +0,0 @@
-import React from 'react';
-import {shallow} from 'enzyme';
-import GreenFlag from '../../../src/containers/green-flag';
-import renderer from 'react-test-renderer';
-import VM from 'scratch-vm';
-
-describe('GreenFlag Container', () => {
-    let vm;
-    beforeEach(() => {
-        vm = new VM();
-    });
-
-    test('renders active state', () => {
-        const component = renderer.create(
-            <GreenFlag
-                active
-                vm={vm}
-            />
-        );
-        expect(component.toJSON()).toMatchSnapshot();
-    });
-
-    test('renders inactive state', () => {
-        const component = renderer.create(
-            <GreenFlag
-                active={false}
-                vm={vm}
-            />
-        );
-        expect(component.toJSON()).toMatchSnapshot();
-    });
-
-    test('triggers onClick when active', () => {
-        const onClick = jest.fn();
-        const componentShallowWrapper = shallow(
-            <GreenFlag
-                active
-                vm={vm}
-                onClick={onClick}
-            />
-        );
-        componentShallowWrapper.simulate('click');
-        expect(onClick).toHaveBeenCalled();
-    });
-
-    // @todo: Test for handles key events.
-    // @todo: Test project run start.
-    // @todo: Test project run stop.
-});

test/unit/util/vm-manager-hoc.test.jsx

@@ -16,7 +16,9 @@ describe('VMManagerHOC', () => {
     beforeEach(() => {
         store = mockStore({
             scratchGui: {
-                projectState: {}
+                projectState: {},
+                mode: {},
+                vmStatus: {}
             }
         });
         vm = new VM();
@@ -24,34 +26,95 @@ describe('VMManagerHOC', () => {
         vm.setCompatibilityMode = jest.fn();
         vm.start = jest.fn();
     });
-    test('when it mounts, the vm is initialized', () => {
+    test('when it mounts in player mode, the vm is initialized but not started', () => {
         const Component = () => (<div />);
         const WrappedComponent = vmManagerHOC(Component);
         mount(
             <WrappedComponent
+                isPlayerOnly
+                isStarted={false}
                 store={store}
                 vm={vm}
             />
         );
         expect(vm.attachAudioEngine.mock.calls.length).toBe(1);
         expect(vm.setCompatibilityMode.mock.calls.length).toBe(1);
-        expect(vm.start.mock.calls.length).toBe(1);
         expect(vm.initialized).toBe(true);
+
+        // But vm should not be started automatically
+        expect(vm.start).not.toHaveBeenCalled();
     });
-    test('if it mounts with an initialized vm, it does not reinitialize the vm', () => {
+    test('when it mounts in editor mode, the vm is initialized and started', () => {
+        const Component = () => (<div />);
+        const WrappedComponent = vmManagerHOC(Component);
+        mount(
+            <WrappedComponent
+                isPlayerOnly={false}
+                isStarted={false}
+                store={store}
+                vm={vm}
+            />
+        );
+        expect(vm.attachAudioEngine.mock.calls.length).toBe(1);
+        expect(vm.setCompatibilityMode.mock.calls.length).toBe(1);
+        expect(vm.initialized).toBe(true);
+
+        expect(vm.start).toHaveBeenCalled();
+    });
+    test('if it mounts with an initialized vm, it does not reinitialize the vm but will start it', () => {
         const Component = () => <div />;
         const WrappedComponent = vmManagerHOC(Component);
         vm.initialized = true;
         mount(
             <WrappedComponent
+                isPlayerOnly={false}
+                isStarted={false}
                 store={store}
                 vm={vm}
             />
         );
         expect(vm.attachAudioEngine.mock.calls.length).toBe(0);
         expect(vm.setCompatibilityMode.mock.calls.length).toBe(0);
-        expect(vm.start.mock.calls.length).toBe(0);
         expect(vm.initialized).toBe(true);
+
+        expect(vm.start).toHaveBeenCalled();
+    });
+
+    test('if it mounts without starting the VM, it can be started by switching to editor mode', () => {
+        const Component = () => <div />;
+        const WrappedComponent = vmManagerHOC(Component);
+        vm.initialized = true;
+        const mounted = mount(
+            <WrappedComponent
+                isPlayerOnly
+                isStarted={false}
+                store={store}
+                vm={vm}
+            />
+        );
+        expect(vm.start).not.toHaveBeenCalled();
+        mounted.setProps({
+            isPlayerOnly: false
+        });
+        expect(vm.start).toHaveBeenCalled();
+    });
+    test('if it mounts with an initialized and started VM, it does not start again', () => {
+        const Component = () => <div />;
+        const WrappedComponent = vmManagerHOC(Component);
+        vm.initialized = true;
+        const mounted = mount(
+            <WrappedComponent
+                isPlayerOnly
+                isStarted
+                store={store}
+                vm={vm}
+            />
+        );
+        expect(vm.start).not.toHaveBeenCalled();
+        mounted.setProps({
+            isPlayerOnly: false
+        });
+        expect(vm.start).not.toHaveBeenCalled();
     });
     test('if the isLoadingWithId prop becomes true, it loads project data into the vm', () => {
         vm.loadProject = jest.fn(() => Promise.resolve());