Merge pull request #257 from paulkaplan/sound-library

Sound library first iteration

src/components/library/library.jsx

@@ -17,6 +17,10 @@ class LibraryComponent extends React.Component {
             // Double select: select as the library's value.
             this.props.onRequestClose();
             this.props.onItemSelected(this.props.data[id]);
+        } else {
+            if (this.props.onItemChosen) {
+                this.props.onItemChosen(this.props.data[id]);
+            }
         }
         this.setState({selectedItem: id});
     }
@@ -61,6 +65,7 @@ LibraryComponent.propTypes = {
         })
         /* eslint-enable react/no-unused-prop-types, lines-around-comment */
     ),
+    onItemChosen: React.PropTypes.func,
     onItemSelected: React.PropTypes.func,
     onRequestClose: React.PropTypes.func,
     title: React.PropTypes.string.isRequired,

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

@@ -8,6 +8,7 @@ const VM = require('scratch-vm');
 const Box = require('../box/box.jsx');
 const BackdropLibrary = require('../../containers/backdrop-library.jsx');
 const CostumeLibrary = require('../../containers/costume-library.jsx');
+const SoundLibrary = require('../../containers/sound-library.jsx');
 const SpriteLibrary = require('../../containers/sprite-library.jsx');
 const SpriteSelectorComponent = require('../sprite-selector/sprite-selector.jsx');
 const StageSelector = require('../../containers/stage-selector.jsx');
@@ -36,6 +37,7 @@ class TargetPane extends React.Component {
             editingTarget,
             backdropLibraryVisible,
             costumeLibraryVisible,
+            soundLibraryVisible,
             spriteLibraryVisible,
             onChangeSpriteDraggability,
             onChangeSpriteName,
@@ -48,6 +50,7 @@ class TargetPane extends React.Component {
             onNewBackdropClick,
             onRequestCloseBackdropLibrary,
             onRequestCloseCostumeLibrary,
+            onRequestCloseSoundLibrary,
             onRequestCloseSpriteLibrary,
             onSelectSprite,
             stage,
@@ -113,6 +116,11 @@ class TargetPane extends React.Component {
                             vm={vm}
                             onRequestClose={onRequestCloseCostumeLibrary}
                         />
+                        <SoundLibrary
+                            visible={soundLibraryVisible}
+                            vm={vm}
+                            onRequestClose={onRequestCloseSoundLibrary}
+                        />
                         <BackdropLibrary
                             visible={backdropLibraryVisible}
                             vm={vm}
@@ -154,11 +162,14 @@ TargetPane.propTypes = {
     onChangeSpriteY: React.PropTypes.func,
     onDeleteSprite: React.PropTypes.func,
     onNewBackdropClick: React.PropTypes.func,
+    onNewSoundClick: React.PropTypes.func,
     onNewSpriteClick: React.PropTypes.func,
     onRequestCloseBackdropLibrary: React.PropTypes.func,
     onRequestCloseCostumeLibrary: React.PropTypes.func,
+    onRequestCloseSoundLibrary: React.PropTypes.func,
     onRequestCloseSpriteLibrary: React.PropTypes.func,
     onSelectSprite: React.PropTypes.func,
+    soundLibraryVisible: React.PropTypes.bool,
     spriteLibraryVisible: React.PropTypes.bool,
     sprites: React.PropTypes.objectOf(spriteShape),
     stage: spriteShape,

src/containers/sound-library.jsx

@@ -0,0 +1,89 @@
+const bindAll = require('lodash.bindall');
+const React = require('react');
+const VM = require('scratch-vm');
+const AudioEngine = require('scratch-audio');
+
+const LibaryComponent = require('../components/library/library.jsx');
+const soundIcon = require('../components/target-pane/icon--sound-dark.svg');
+
+const soundLibraryContent = require('../lib/libraries/sounds.json');
+
+const md5ToUrl = md5 => (`https://cdn.assets.scratch.mit.edu/internalapi/asset/${md5}/get/`);
+
+class SoundLibrary extends React.Component {
+    constructor (props) {
+        super(props);
+        bindAll(this, [
+            'handleItemSelected',
+            'handleItemChosen'
+        ]);
+    }
+    componentDidMount () {
+        // @todo lots of architectural questions here
+        // - Should the sound library component own an audio player, or use the VM?
+        // - Should the sound library load up all the sounds or only on demand?
+        // - How can we get a callback for knowing when the sound has been loaded?
+        this.audioEngine = new AudioEngine();
+        this.player = this.audioEngine.createPlayer();
+        this.audioEngine.loadSounds(soundLibraryContent.map(sound => (
+            {
+                fileUrl: md5ToUrl(sound.md5),
+                ...sound
+            }
+        )));
+    }
+    handleItemChosen (item) {
+        this.player.playSound(item._md5);
+    }
+    handleItemSelected (item) {
+        // @todo these two props should be handled by a VM.addSound function
+        const nextSoundId = this.props.vm.editingTarget.sprite.sounds.length;
+        const fileUrl = md5ToUrl(item._md5);
+        const vmSound = {
+            fileUrl,
+            format: item.format,
+            md5: item._md5,
+            rate: item.rate,
+            sampleCount: item.sampleCount,
+            soundID: nextSoundId,
+            name: item.name
+        };
+        // @todo awaiting an official VM.addSound function
+        // it will need to both add to sprite and load the sound
+        this.props.vm.editingTarget.sprite.sounds.push(vmSound);
+        this.props.vm.runtime.audioEngine.loadSounds([vmSound]);
+    }
+    render () {
+        // @todo need to use this hack to avoid library using md5 for image
+        const soundLibraryThumbnailData = soundLibraryContent.map(sound => {
+            const {
+                md5,
+                ...otherData
+            } = sound;
+            return {
+                _md5: md5,
+                rawURL: soundIcon,
+                ...otherData
+            };
+        });
+
+        return (
+            <LibaryComponent
+                data={soundLibraryThumbnailData}
+                title="Sound Library"
+                visible={this.props.visible}
+                onItemChosen={this.handleItemChosen}
+                onItemSelected={this.handleItemSelected}
+                onRequestClose={this.props.onRequestClose}
+            />
+        );
+    }
+}
+
+SoundLibrary.propTypes = {
+    onRequestClose: React.PropTypes.func,
+    visible: React.PropTypes.bool,
+    vm: React.PropTypes.instanceOf(VM).isRequired
+};
+
+module.exports = SoundLibrary;

src/containers/target-pane.jsx

@@ -5,9 +5,11 @@ const {connect} = require('react-redux');
 
 const {
     openBackdropLibrary,
+    openSoundLibrary,
     openSpriteLibrary,
     closeBackdropLibrary,
     closeCostumeLibrary,
+    closeSoundLibrary,
     closeSpriteLibrary
 } = require('../reducers/modals');
 
@@ -87,6 +89,7 @@ const mapStateToProps = state => ({
         return sprites;
     }, {}),
     stage: state.targets.stage,
+    soundLibraryVisible: state.modals.soundLibrary,
     spriteLibraryVisible: state.modals.spriteLibrary,
     costumeLibraryVisible: state.modals.costumeLibrary,
     backdropLibraryVisible: state.modals.backdropLibrary
@@ -96,6 +99,10 @@ const mapDispatchToProps = dispatch => ({
         e.preventDefault();
         dispatch(openBackdropLibrary());
     },
+    onNewSoundClick: e => {
+        e.preventDefault();
+        dispatch(openSoundLibrary());
+    },
     onNewSpriteClick: e => {
         e.preventDefault();
         dispatch(openSpriteLibrary());
@@ -106,6 +113,9 @@ const mapDispatchToProps = dispatch => ({
     onRequestCloseCostumeLibrary: () => {
         dispatch(closeCostumeLibrary());
     },
+    onRequestCloseSoundLibrary: () => {
+        dispatch(closeSoundLibrary());
+    },
     onRequestCloseSpriteLibrary: () => {
         dispatch(closeSpriteLibrary());
     }