Add very simple end animation

src/components/sprite-selector/sprite-selector.css

@@ -112,3 +112,34 @@
     75% {transform: rotate(-2deg) scale(1.05);}
     100% {transform: rotate(0deg) scale(1.05);}
 }
+
+.receivedBlocks {
+  -webkit-animation: glowing 250ms;
+  -moz-animation: glowing 250ms;
+  -o-animation: glowing 250ms;
+  animation: glowing 250ms;
+}
+
+@-webkit-keyframes glowing {
+  10% { -webkit-box-shadow: 0 0 10px #7fff1e; }
+  90% { -webkit-box-shadow: 0 0 10px #7fff1e; }
+  100% { -webkit-box-shadow: none; }
+}
+
+@-moz-keyframes glowing {
+  10% { -moz-box-shadow: 0 0 10px #7fff1e; }
+  90% { -moz-box-shadow: 0 0 10px #7fff1e; }
+  100% { -moz-box-shadow: none; }
+}
+
+@-o-keyframes glowing {
+  10% { box-shadow: 0 0 10px #7fff1e; }
+  90% { box-shadow: 0 0 10px #7fff1e; }
+  100% { box-shadow: none; }
+}
+
+@keyframes glowing {
+  10% { box-shadow: 0 0 10px #7fff1e; }
+  90% { box-shadow: 0 0 10px #7fff1e; }
+  100% { box-shadow: none; }
+}
\ No newline at end of file

src/components/sprite-selector/sprite-selector.jsx

@@ -21,6 +21,8 @@ const messages = defineMessages({
 
 const SpriteSelectorComponent = function (props) {
     const {
+        editingTarget,
+        hoveredTarget,
         intl,
         onChangeSpriteDirection,
         onChangeSpriteName,
@@ -30,8 +32,6 @@ const SpriteSelectorComponent = function (props) {
         onChangeSpriteY,
         onDeleteSprite,
         onDuplicateSprite,
-        onMouseOutSprite,
-        onMouseOverSprite,
         onNewSpriteClick,
         onSelectSprite,
         raised,
@@ -76,10 +76,12 @@ const SpriteSelectorComponent = function (props) {
                         .map(sprite => (
                             <SpriteSelectorItem
                                 assetId={sprite.costume && sprite.costume.assetId}
-                                className={
-                                    (raised && sprite.id !== selectedId) ?
-                                        classNames(styles.sprite, styles.raised) : styles.sprite
-                                }
+                                className={hoveredTarget.sprite === sprite.id &&
+                                    sprite.id !== editingTarget &&
+                                    hoveredTarget.receivedBlocks ?
+                                        classNames(styles.sprite, styles.receivedBlocks) :
+                                        raised && sprite.id !== editingTarget ?
+                                            classNames(styles.sprite, styles.raised) : styles.sprite}
                                 id={sprite.id}
                                 key={sprite.id}
                                 name={sprite.name}
@@ -87,8 +89,6 @@ const SpriteSelectorComponent = function (props) {
                                 onClick={onSelectSprite}
                                 onDeleteButtonClick={onDeleteSprite}
                                 onDuplicateButtonClick={onDuplicateSprite}
-                                onMouseOut={onMouseOutSprite}
-                                onMouseOver={onMouseOverSprite}
                             />
                         ))
                     }
@@ -105,6 +105,11 @@ const SpriteSelectorComponent = function (props) {
 };
 
 SpriteSelectorComponent.propTypes = {
+    editingTarget: PropTypes.string,
+    hoveredTarget: PropTypes.shape({
+        hoveredSprite: PropTypes.string,
+        receivedBlocks: PropTypes.bool
+    }),
     intl: intlShape.isRequired,
     onChangeSpriteDirection: PropTypes.func,
     onChangeSpriteName: PropTypes.func,
@@ -114,8 +119,6 @@ SpriteSelectorComponent.propTypes = {
     onChangeSpriteY: PropTypes.func,
     onDeleteSprite: PropTypes.func,
     onDuplicateSprite: PropTypes.func,
-    onMouseOutSprite: PropTypes.func,
-    onMouseOverSprite: PropTypes.func,
     onNewSpriteClick: PropTypes.func,
     onSelectSprite: PropTypes.func,
     raised: PropTypes.bool,

src/components/target-pane/target-pane.jsx

@@ -19,6 +19,7 @@ import styles from './target-pane.css';
 const TargetPane = ({
     backdropLibraryVisible,
     editingTarget,
+    hoveredTarget,
     spriteLibraryVisible,
     onChangeSpriteDirection,
     onChangeSpriteName,
@@ -28,8 +29,6 @@ const TargetPane = ({
     onChangeSpriteY,
     onDeleteSprite,
     onDuplicateSprite,
-    onMouseOutSprite,
-    onMouseOverSprite,
     onNewSpriteClick,
     onRequestCloseSpriteLibrary,
     onRequestCloseBackdropLibrary,
@@ -46,6 +45,8 @@ const TargetPane = ({
     >
 
         <SpriteSelectorComponent
+            editingTarget={editingTarget}
+            hoveredTarget={hoveredTarget}
             raised={raiseSprites}
             selectedId={editingTarget}
             sprites={sprites}
@@ -57,8 +58,6 @@ const TargetPane = ({
             onChangeSpriteY={onChangeSpriteY}
             onDeleteSprite={onDeleteSprite}
             onDuplicateSprite={onDuplicateSprite}
-            onMouseOutSprite={onMouseOutSprite}
-            onMouseOverSprite={onMouseOverSprite}
             onNewSpriteClick={onNewSpriteClick}
             onSelectSprite={onSelectSprite}
         />
@@ -113,6 +112,10 @@ TargetPane.propTypes = {
     backdropLibraryVisible: PropTypes.bool,
     editingTarget: PropTypes.string,
     extensionLibraryVisible: PropTypes.bool,
+    hoveredTarget: PropTypes.shape({
+        hoveredSprite: PropTypes.string,
+        receivedBlocks: PropTypes.bool
+    }),
     onChangeSpriteDirection: PropTypes.func,
     onChangeSpriteName: PropTypes.func,
     onChangeSpriteSize: PropTypes.func,
@@ -121,8 +124,6 @@ TargetPane.propTypes = {
     onChangeSpriteY: PropTypes.func,
     onDeleteSprite: PropTypes.func,
     onDuplicateSprite: PropTypes.func,
-    onMouseOutSprite: PropTypes.func,
-    onMouseOverSprite: PropTypes.func,
     onNewSpriteClick: PropTypes.func,
     onRequestCloseBackdropLibrary: PropTypes.func,
     onRequestCloseExtensionLibrary: PropTypes.func,

src/containers/sprite-selector-item.jsx

 import bindAll from 'lodash.bindall';
 import PropTypes from 'prop-types';
 import React from 'react';
-
 import {connect} from 'react-redux';
 
+import {setHoveredSprite} from '../reducers/hovered-target';
+
 import SpriteSelectorItemComponent from '../components/sprite-selector-item/sprite-selector-item.jsx';
 
 class SpriteSelectorItem extends React.Component {
@@ -33,10 +34,10 @@ class SpriteSelectorItem extends React.Component {
         this.props.onDuplicateButtonClick(this.props.id);
     }
     handleMouseOut () {
-        this.props.onMouseOut(this.props.id);
+        this.props.dispatchSetHoveredSprite(null);
     }
     handleMouseOver () {
-        this.props.onMouseOver(this.props.id);
+        this.props.dispatchSetHoveredSprite(this.props.id);
     }
     render () {
         const {
@@ -46,8 +47,7 @@ class SpriteSelectorItem extends React.Component {
             onClick,
             onDeleteButtonClick,
             onDuplicateButtonClick,
-            onMouseOut,
-            onMouseOver,
+            receivedBlocks,
             /* eslint-enable no-unused-vars */
             ...props
         } = this.props;
@@ -56,8 +56,8 @@ class SpriteSelectorItem extends React.Component {
                 onClick={this.handleClick}
                 onDeleteButtonClick={onDeleteButtonClick ? this.handleDelete : null}
                 onDuplicateButtonClick={onDuplicateButtonClick ? this.handleDuplicate : null}
-                onMouseOut={onMouseOut ? this.handleMouseOut : null}
-                onMouseOver={onMouseOver ? this.handleMouseOver : null}
+                onMouseOut={this.handleMouseOut}
+                onMouseOver={this.handleMouseOver}
                 {...props}
             />
         );
@@ -67,20 +67,28 @@ class SpriteSelectorItem extends React.Component {
 SpriteSelectorItem.propTypes = {
     assetId: PropTypes.string,
     costumeURL: PropTypes.string,
+    dispatchSetHoveredSprite: PropTypes.func.isRequired,
     id: PropTypes.oneOfType([PropTypes.string, PropTypes.number]),
     name: PropTypes.string,
     onClick: PropTypes.func,
     onDeleteButtonClick: PropTypes.func,
     onDuplicateButtonClick: PropTypes.func,
-    onMouseOut: PropTypes.func,
-    onMouseOver: PropTypes.func,
+    receivedBlocks: PropTypes.bool,
     selected: PropTypes.bool
 };
 
-const mapStateToProps = (state, {assetId, costumeURL}) => ({
-    costumeURL: costumeURL || (assetId && state.vm.runtime.storage.get(assetId).encodeDataURI())
+const mapStateToProps = (state, {assetId, costumeURL, id}) => ({
+    costumeURL: costumeURL || (assetId && state.vm.runtime.storage.get(assetId).encodeDataURI()),
+    receivedBlocks: state.hoveredTarget.receivedBlocks &&
+            state.hoveredTarget.sprite === id
+});
+const mapDispatchToProps = dispatch => ({
+    dispatchSetHoveredSprite: spriteId => {
+        dispatch(setHoveredSprite(spriteId));
+    }
 });
 
 export default connect(
-    mapStateToProps
+    mapStateToProps,
+    mapDispatchToProps
 )(SpriteSelectorItem);

src/containers/target-pane.jsx

@@ -9,8 +9,6 @@ import {
     closeSpriteLibrary
 } from '../reducers/modals';
 
-import {setHoveredSprite} from '../reducers/hovered-target-sprite';
-
 import TargetPaneComponent from '../components/target-pane/target-pane.jsx';
 
 class TargetPane extends React.Component {
@@ -25,8 +23,6 @@ class TargetPane extends React.Component {
             'handleChangeSpriteY',
             'handleDeleteSprite',
             'handleDuplicateSprite',
-            'handleMouseOutSprite',
-            'handleMouseOverSprite',
             'handleSelectSprite'
         ]);
     }
@@ -54,12 +50,6 @@ class TargetPane extends React.Component {
     handleDuplicateSprite (id) {
         this.props.vm.duplicateSprite(id);
     }
-    handleMouseOutSprite () {
-        this.props.setHoveredSprite(null);
-    }
-    handleMouseOverSprite (id) {
-        this.props.setHoveredSprite(id);
-    }
     handleSelectSprite (id) {
         this.props.vm.setEditingTarget(id);
     }
@@ -75,8 +65,6 @@ class TargetPane extends React.Component {
                 onChangeSpriteY={this.handleChangeSpriteY}
                 onDeleteSprite={this.handleDeleteSprite}
                 onDuplicateSprite={this.handleDuplicateSprite}
-                onMouseOutSprite={this.handleMouseOutSprite}
-                onMouseOverSprite={this.handleMouseOverSprite}
                 onSelectSprite={this.handleSelectSprite}
             />
         );
@@ -94,6 +82,7 @@ TargetPane.propTypes = {
 
 const mapStateToProps = state => ({
     editingTarget: state.targets.editingTarget,
+    hoveredTarget: state.hoveredTarget,
     sprites: Object.keys(state.targets.sprites).reduce((sprites, k) => {
         let {direction, size, x, y, ...sprite} = state.targets.sprites[k];
         if (typeof direction !== 'undefined') direction = Math.round(direction);
@@ -118,9 +107,6 @@ const mapDispatchToProps = dispatch => ({
     },
     onRequestCloseBackdropLibrary: () => {
         dispatch(closeBackdropLibrary());
-    },
-    setHoveredSprite: spriteId => {
-        dispatch(setHoveredSprite(spriteId));
     }
 });
 

src/lib/vm-listener-hoc.jsx

@@ -8,6 +8,7 @@ import {connect} from 'react-redux';
 import {updateEditingTarget, updateTargets} from '../reducers/targets';
 import {updateBlockDrag} from '../reducers/block-drag';
 import {updateMonitors} from '../reducers/monitors';
+import {setReceivedBlocks} from '../reducers/hovered-target';
 
 /*
  * Higher Order Component to manage events emitted by the VM
@@ -51,8 +52,9 @@ const vmListenerHOC = function (WrappedComponent) {
             }
         }
         handleBlockDragEnd (blocks) {
-            if (this.props.hoveredTargetSprite && this.props.hoveredTargetSprite !== this.props.editingTarget) {
-                this.props.vm.shareBlocksToTarget(blocks, this.props.hoveredTargetSprite);
+            if (this.props.hoveredSprite && this.props.hoveredSprite !== this.props.editingTarget) {
+                this.props.vm.shareBlocksToTarget(blocks, this.props.hoveredSprite);
+                this.props.onReceivedBlocks(true);
             }
         }
         handleKeyDown (e) {
@@ -86,10 +88,13 @@ const vmListenerHOC = function (WrappedComponent) {
             const {
                 /* eslint-disable no-unused-vars */
                 attachKeyboardEvents,
+                editingTarget,
+                hoveredSprite,
                 onBlockDragUpdate,
                 onKeyDown,
                 onKeyUp,
                 onMonitorsUpdate,
+                onReceivedBlocks,
                 onTargetsUpdate,
                 /* eslint-enable no-unused-vars */
                 ...props
@@ -100,11 +105,12 @@ const vmListenerHOC = function (WrappedComponent) {
     VMListener.propTypes = {
         attachKeyboardEvents: PropTypes.bool,
         editingTarget: PropTypes.string,
-        hoveredTargetSprite: PropTypes.string,
+        hoveredSprite: PropTypes.string,
         onBlockDragUpdate: PropTypes.func.isRequired,
         onKeyDown: PropTypes.func,
         onKeyUp: PropTypes.func,
         onMonitorsUpdate: PropTypes.func.isRequired,
+        onReceivedBlocks: PropTypes.func.isRequired,
         onTargetsUpdate: PropTypes.func.isRequired,
         vm: PropTypes.instanceOf(VM).isRequired
     };
@@ -113,7 +119,7 @@ const vmListenerHOC = function (WrappedComponent) {
     };
     const mapStateToProps = state => ({
         vm: state.vm,
-        hoveredTargetSprite: state.hoveredTargetSprite,
+        hoveredSprite: state.hoveredTarget.sprite,
         editingTarget: state.targets.editingTarget
     });
     const mapDispatchToProps = dispatch => ({
@@ -126,6 +132,9 @@ const vmListenerHOC = function (WrappedComponent) {
         },
         onBlockDragUpdate: areBlocksOverGui => {
             dispatch(updateBlockDrag(areBlocksOverGui));
+        },
+        onReceivedBlocks: receivedBlocks => {
+            dispatch(setReceivedBlocks(receivedBlocks));
         }
     });
     return connect(

src/reducers/gui.js

@@ -2,7 +2,7 @@ import {combineReducers} from 'redux';
 import colorPickerReducer from './color-picker';
 import customProceduresReducer from './custom-procedures';
 import blockDragReducer from './block-drag';
-import hoveredTargetSpriteReducer from './hovered-target-sprite';
+import hoveredTargetReducer from './hovered-target';
 import intlReducer from './intl';
 import modalReducer from './modals';
 import monitorReducer from './monitors';
@@ -17,7 +17,7 @@ export default combineReducers({
     blockDrag: blockDragReducer,
     colorPicker: colorPickerReducer,
     customProcedures: customProceduresReducer,
-    hoveredTargetSprite: hoveredTargetSpriteReducer,
+    hoveredTarget: hoveredTargetReducer,
     intl: intlReducer,
     stageSize: stageSizeReducer,
     modals: modalReducer,

src/reducers/hovered-target-sprite.js → src/reducers/hovered-target.js

-const SET_HOVERED_SPRITE = 'scratch-gui/hovered-target-sprite/SET_HOVERED_SPRITE';
+const SET_HOVERED_SPRITE = 'scratch-gui/hovered-target/SET_HOVERED_SPRITE';
+const SET_RECEIVED_BLOCKS = 'scratch-gui/hovered-target/SET_RECEIVED_BLOCKS';
 
-const initialState = null;
+const initialState = {
+    sprite: null,
+    receivedBlocks: false
+};
 
 const reducer = function (state, action) {
     if (typeof state === 'undefined') state = initialState;
     switch (action.type) {
     case SET_HOVERED_SPRITE:
-        return action.spriteId;
+        return {
+            sprite: action.spriteId,
+            receivedBlocks: false
+        };
+    case SET_RECEIVED_BLOCKS:
+        return {
+            sprite: state.sprite,
+            receivedBlocks: action.receivedBlocks
+        };
     default:
         return state;
     }
@@ -22,7 +34,15 @@ const setHoveredSprite = function (spriteId) {
     };
 };
 
+const setReceivedBlocks = function (receivedBlocks) {
+    return {
+        type: SET_RECEIVED_BLOCKS,
+        receivedBlocks: receivedBlocks
+    };
+};
+
 export {
     reducer as default,
-    setHoveredSprite
+    setHoveredSprite,
+    setReceivedBlocks
 };