Add play buttons to sound library tiles for touch

Add prop to library items to show a play button. If a play button is present the ‘play on hover’ only applies over the icon rather than the full tile.

src/components/library-item/library-item.css

@@ -7,6 +7,7 @@
     align-items: center;
     justify-content: flex-start;
     flex-basis: 160px;
+    position: relative;
     height: 160px;
     max-width: 160px;
     margin: $space;
@@ -200,3 +201,45 @@
 [dir="rtl"] .coming-soon-text {
     transform: translate(calc(-2 * $space), calc(2 * $space));
 }
+
+.play-button {
+    display: flex;
+    align-items: center;
+    justify-content: center;
+
+    overflow: hidden;  /* Mask the icon animation */
+    width: 1.5rem;
+    height: 1.5rem;
+    background-color: $motion-primary;
+    color: $ui-white;
+    border-radius: 50%;
+    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
+    user-select: none;
+    cursor: pointer;
+    transition: all 0.15s ease-out;
+}
+
+.play-button {
+    position: absolute;
+    position: absolute;
+    top: 0.125rem;
+    z-index: auto;
+}
+
+.play-button:focus {
+    outline: none;
+}
+
+.play-icon {
+  width: 50%;
+}
+
+[dir="ltr"] .play-button {
+    right: 0.125rem;
+    padding-left: .125rem;
+}
+
+[dir="rtl"] .play-button {
+    left: 0.125rem;
+    padding-right: .125rem;
+}

src/components/library-item/library-item.jsx

@@ -8,6 +8,11 @@ import classNames from 'classnames';
 
 import bluetoothIconURL from './bluetooth.svg';
 import internetConnectionIconURL from './internet-connection.svg';
+import playIcon from './icon--play.svg';
+
+const preventClick = e => {
+    e.stopPropagation();
+};
 
 /* eslint-disable react/prefer-stateless-function */
 class LibraryItemComponent extends React.PureComponent {
@@ -115,12 +120,16 @@ class LibraryItemComponent extends React.PureComponent {
                 onClick={this.props.onClick}
                 onFocus={this.props.onFocus}
                 onKeyPress={this.props.onKeyPress}
-                onMouseEnter={this.props.onMouseEnter}
-                onMouseLeave={this.props.onMouseLeave}
+                onMouseEnter={this.props.showPlayButton ? null : this.props.onMouseEnter}
+                onMouseLeave={this.props.showPlayButton ? null : this.props.onMouseLeave}
             >
                 {/* Layers of wrapping is to prevent layout thrashing on animation */}
                 <Box className={styles.libraryItemImageContainerWrapper}>
-                    <Box className={styles.libraryItemImageContainer}>
+                    <Box
+                        className={styles.libraryItemImageContainer}
+                        onMouseEnter={this.props.showPlayButton ? this.props.onMouseEnter : null}
+                        onMouseLeave={this.props.showPlayButton ? this.props.onMouseLeave : null}
+                    >
                         <img
                             className={styles.libraryItemImage}
                             src={this.props.iconURL}
@@ -128,6 +137,22 @@ class LibraryItemComponent extends React.PureComponent {
                     </Box>
                 </Box>
                 <span className={styles.libraryItemName}>{this.props.name}</span>
+                {this.props.showPlayButton ? (
+                    <div
+                        aria-label="Play"
+                        className={styles.playButton}
+                        role="button"
+                        tabIndex="0"
+                        onClick={preventClick}
+                        onMouseDown={this.props.onPlay}
+                    >
+                        <img
+                            className={styles.playIcon}
+                            draggable={false}
+                            src={playIcon}
+                        />
+                    </div>
+                ) : null}
             </Box>
         );
     }
@@ -158,11 +183,14 @@ LibraryItemComponent.propTypes = {
     onFocus: PropTypes.func.isRequired,
     onKeyPress: PropTypes.func.isRequired,
     onMouseEnter: PropTypes.func.isRequired,
-    onMouseLeave: PropTypes.func.isRequired
+    onMouseLeave: PropTypes.func.isRequired,
+    onPlay: PropTypes.func.isRequired,
+    showPlayButton: PropTypes.bool
 };
 
 LibraryItemComponent.defaultProps = {
-    disabled: false
+    disabled: false,
+    showPlayButton: false
 };
 
 export default LibraryItemComponent;

src/components/library/library.jsx

@@ -187,6 +187,7 @@ class LibraryComponent extends React.Component {
                             internetConnectionRequired={dataItem.internetConnectionRequired}
                             key={typeof dataItem.name === 'string' ? dataItem.name : dataItem.rawURL}
                             name={dataItem.name}
+                            showPlayButton={this.props.showPlayButton}
                             onMouseEnter={this.handleMouseEnter}
                             onMouseLeave={this.handleMouseLeave}
                             onSelect={this.handleSelect}
@@ -227,12 +228,14 @@ LibraryComponent.propTypes = {
     onItemMouseLeave: PropTypes.func,
     onItemSelected: PropTypes.func,
     onRequestClose: PropTypes.func,
+    showPlayButton: PropTypes.bool,
     tags: PropTypes.arrayOf(PropTypes.shape(TagButton.propTypes)),
     title: PropTypes.string.isRequired
 };
 
 LibraryComponent.defaultProps = {
-    filterable: true
+    filterable: true,
+    showPlayButton: false
 };
 
 export default injectIntl(LibraryComponent);

src/containers/library-item.jsx

@@ -15,6 +15,7 @@ class LibraryItem extends React.PureComponent {
             'handleKeyPress',
             'handleMouseEnter',
             'handleMouseLeave',
+            'handlePlay',
             'rotateIcon',
             'startRotatingIcons',
             'stopRotatingIcons'
@@ -62,6 +63,10 @@ class LibraryItem extends React.PureComponent {
             }, this.stopRotatingIcons);
         }
     }
+    handlePlay (e) {
+        e.stopPropagation(); // To prevent from bubbling back to handleClick
+        this.props.onMouseEnter(this.props.id);
+    }
     startRotatingIcons () {
         this.rotateIcon();
         this.intervalId = setInterval(this.rotateIcon, 300);
@@ -105,12 +110,14 @@ class LibraryItem extends React.PureComponent {
                 insetIconURL={this.props.insetIconURL}
                 internetConnectionRequired={this.props.internetConnectionRequired}
                 name={this.props.name}
+                showPlayButton={this.props.showPlayButton}
                 onBlur={this.handleBlur}
                 onClick={this.handleClick}
                 onFocus={this.handleFocus}
                 onKeyPress={this.handleKeyPress}
                 onMouseEnter={this.handleMouseEnter}
                 onMouseLeave={this.handleMouseLeave}
+                onPlay={this.handlePlay}
             />
         );
     }
@@ -143,7 +150,8 @@ LibraryItem.propTypes = {
     ]),
     onMouseEnter: PropTypes.func.isRequired,
     onMouseLeave: PropTypes.func.isRequired,
-    onSelect: PropTypes.func.isRequired
+    onSelect: PropTypes.func.isRequired,
+    showPlayButton: PropTypes.bool
 };
 
 export default injectIntl(LibraryItem);

src/containers/sound-library.jsx

@@ -141,6 +141,7 @@ class SoundLibrary extends React.PureComponent {
 
         return (
             <LibraryComponent
+                showPlayButton
                 data={soundLibraryThumbnailData}
                 id="soundLibrary"
                 tags={soundTags}