add basic shortcuts

app/App.js

@@ -36,6 +36,7 @@ import SearchBoxContainer from './containers/SearchBoxContainer';
 import IpcContainer from './containers/IpcContainer';
 import SoundContainer from './containers/SoundContainer';
 import ToastContainer from './containers/ToastContainer';
+import ShortcutsContainer from './containers/ShortcutsContainer';
 
 import ui from 'nuclear-ui';
 import PlayerControls from './components/PlayerControls';
@@ -270,6 +271,7 @@ class App extends React.Component {
             </VerticalPanel>
             {this.renderRightPanel(settings)}
             <ToastContainer/>
+            <ShortcutsContainer/>
           </div>
           {this.renderFooter(settings)}
           <SoundContainer />

app/containers/ShortcutsContainer/index.js

@@ -0,0 +1,134 @@
+import React from 'react';
+import { connect } from 'react-redux';
+import { bindActionCreators } from 'redux';
+import Sound from 'react-sound';
+import * as Mousetrap from 'mousetrap';
+
+import * as PlayerActions from '../../actions/player';
+import * as QueueActions from '../../actions/queue';
+
+const VOLUME_ITERATION = 5;
+const SEEK_ITERATION = 100;
+
+class Shortcuts extends React.Component {
+  handleSpaceBar() {
+    const { queue, player, actions } = this.props;
+
+    if (queue.queueItems.length > 0) {
+      if(player.playbackStatus === Sound.status.PLAYING) {
+        actions.pausePlayback();
+      } else {
+        actions.startPlayback();
+      }
+    }
+  }
+
+  playCurrentSong() {
+    const { queue, player, actions } = this.props;
+
+    if (
+      queue.queueItems.length > 0 && 
+      player.playbackStatus !== Sound.status.PLAYING
+    ) {
+      actions.startPlayback();
+    }
+  }
+
+  increaseVolume() {
+    const { player, actions } = this.props;
+
+    if (player.volume < 100) {
+      actions.updateVolume(player.volume + VOLUME_ITERATION);
+    }
+  }
+
+  decreaseVolume() {
+    const { player, actions } = this.props;
+
+    if (player.volume > 0) {
+      actions.updateVolume(player.volume - VOLUME_ITERATION);
+    }
+  }
+
+  increaseSeek() {
+    const { player, actions } = this.props;
+
+    if (player.playbackProgress < 100) {
+      actions.updateSeek(player.seek + SEEK_ITERATION);
+    }
+  }
+
+  decreaseSeek() {
+    const { player, actions} = this.props;
+
+    if (player.playbackProgress > 0) {
+      actions.updateSeek(player.seek - SEEK_ITERATION);
+    }
+  }
+
+  constructor(props) {
+    super(props);
+    this.handleSpaceBar = this.handleSpaceBar.bind(this);
+    this.increaseVolume = this.increaseVolume.bind(this);
+    this.decreaseVolume = this.decreaseVolume.bind(this);
+    this.playCurrentSong = this.playCurrentSong.bind(this);
+    this.increaseSeek = this.increaseSeek.bind(this);
+    this.decreaseSeek = this.decreaseSeek.bind(this);
+  }
+
+  componentDidMount() {
+    Mousetrap.bind('space', this.handleSpaceBar);
+    Mousetrap.bind('enter', this.playCurrentSong);
+    Mousetrap.bind('up', this.increaseVolume);
+    Mousetrap.bind('down', this.decreaseVolume);
+    Mousetrap.bind('left', this.decreaseSeek);
+    Mousetrap.bind('right', this.increaseSeek);
+    Mousetrap.bind(['ctrl+right', 'command+right'], this.props.actions.nextSong);
+    Mousetrap.bind(['ctrl+left', 'command+left'], this.props.actions.previousSong);
+    Mousetrap.bind(['ctrl+top', 'command+top'], this.props.actions.unmute);
+    Mousetrap.bind(['ctrl+down', 'command+down'], this.props.actions.mute);
+  }
+
+  componentWillUnmount() {
+    Mousetrap.unbind([
+      'space',
+      'left',
+      'right',
+      'up',
+      'down',
+      'right',
+      'left',
+      'ctrl+right',
+      'command+right',
+      'ctrl+left',
+      'command+left',
+      'ctrl+top',
+      'command+top',
+      'ctrl+down',
+      'command+down'
+    ]);
+  }
+
+  shouldComponentUpdate() {
+    return false;
+  }
+
+  render() {
+    return null;
+  }
+}
+
+function mapStateToProps({ player, queue }) {
+  return {
+    player,
+    queue
+  };
+}
+
+function mapDispatchToProps(dispatch) {
+  return {
+    actions: bindActionCreators(Object.assign({}, PlayerActions, QueueActions), dispatch)
+  };
+}
+
+export default connect(mapStateToProps, mapDispatchToProps)(Shortcuts);

package.json

@@ -52,6 +52,7 @@
     "get-artist-title": "^1.1.1",
     "md5": "^2.2.1",
     "moment": "^2.20.1",
+    "mousetrap": "^1.6.2",
     "nuclear-core": "0.0.4",
     "nuclear-ui": "0.0.6",
     "numeral": "^2.0.6",