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gaia/dev_apps/music-oga/js/ui/title_bar.js

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+/* exported TitleBar */
+/* global LazyLoader, ModeManager, MODE_PICKER, MODE_PLAYER, PlayerView,
+          AlbumArtCache, App */
+'use strict';
+
+var TitleBar = {
+  get view() {
+    return document.getElementById('title');
+  },
+
+  get titleText() {
+    return document.querySelector('#title-text bdi');
+  },
+
+  get playerIcon() {
+    return document.getElementById('title-player');
+  },
+
+  get doneButton() {
+    return document.getElementById('title-done');
+  },
+
+  get scanProgress() {
+    return document.getElementById('scan-progress');
+  },
+
+  get scanSpinner() {
+    return document.getElementById('scan-spinner');
+  },
+
+  get scanCount() {
+    return document.getElementById('scan-count');
+  },
+
+  get scanArtist() {
+    return document.getElementById('scan-artist');
+  },
+
+  get scanTitle() {
+    return document.getElementById('scan-title');
+  },
+
+  init: function tb_init() {
+    this.view.addEventListener('click', this);
+    this.view.addEventListener('action', this.onActionBack);
+  },
+
+  changeTitleText: function tb_changeTitleText(content) {
+    this.titleText.textContent = content;
+  },
+
+  showBackArrow: function(show) {
+    if (show) { this.view.setAttribute('action', 'back'); }
+    else { this.view.removeAttribute('action'); }
+  },
+
+  onActionBack: function() {
+    if (App.pendingPick) {
+      if (ModeManager.currentMode === MODE_PICKER) {
+        App.pendingPick.postError('pick cancelled');
+        return;
+      }
+
+      PlayerView.stop();
+    }
+
+    ModeManager.pop();
+  },
+
+  showScanProgress: function(info) {
+    this.scanProgress.classList.remove('hidden');
+    this.scanSpinner.classList.remove('hidden');
+    this.scanCount.textContent = info.count;
+    this.scanArtist.textContent = info.artist || '';
+    this.scanTitle.textContent = info.title || '';
+  },
+
+  hideScanProgress: function() {
+    this.scanSpinner.classList.add('hidden');
+    // The setTimeout is a workaround for bug 1166500
+    setTimeout(function() {
+      this.scanProgress.classList.add('hidden');
+    }.bind(this), 100);
+  },
+
+  handleEvent: function tb_handleEvent(evt) {
+    var target = evt.target;
+
+    function cleanupPick() {
+      PlayerView.stop();
+    }
+
+    switch (evt.type) {
+      case 'click':
+        if (!target) {
+          return;
+        }
+
+        switch (target.id) {
+          case 'title-player':
+            // We can't to switch to player mode when there are no songs queued.
+            if (PlayerView.isQueued) {
+              ModeManager.push(MODE_PLAYER);
+            }
+
+            break;
+          case 'title-done':
+            var currentFileInfo = PlayerView.currentFileInfo;
+            LazyLoader.load('js/metadata/album_art_cache.js').then(() => {
+              return AlbumArtCache.getThumbnailBlob(currentFileInfo);
+            }).then((picture) => {
+              var currentMetadata = currentFileInfo.metadata;
+              var playingBlob = PlayerView.playingBlob;
+
+              App.pendingPick.postResult({
+                type: playingBlob.type,
+                blob: playingBlob,
+                name: currentMetadata.title || '',
+                // We only pass some metadata attributes so we don't share
+                // personal details like # of times played and ratings.
+                metadata: {
+                  title: currentMetadata.title,
+                  artist: currentMetadata.artist,
+                  album: currentMetadata.album,
+                  picture: picture
+                }
+              });
+
+              cleanupPick();
+            });
+            break;
+        }
+
+        break;
+
+      default:
+        return;
+    }
+  }
+};