Publish Vulpes Preview 15 sources for desktop, Android and Tundra

Share Gaia assets and adapters, keep private profiles and development documents local, and update both public READMEs.

gaia/apps/system/js/playing_icon.js

@@ -0,0 +1,27 @@
+/* global BaseIcon, Service */
+'use strict';
+
+(function(exports) {
+  var PlayingIcon = function(manager, index) {
+    BaseIcon.call(this, manager, index);
+  };
+  PlayingIcon.prototype = Object.create(BaseIcon.prototype);
+  PlayingIcon.prototype.name = 'PlayingIcon';
+  PlayingIcon.prototype.shouldDisplay = function() {
+    // The camera recording fires a audio-channel-changed event to kill
+    // existing "content" audio channels, in this case we don't show the
+    // playing icon.
+    return this.manager.currentChannel === 'content' &&
+           !Service.query('RecordingIcon.isVisible');
+  };
+
+  PlayingIcon.prototype.view = function view() {
+    return `<div id="statusbar-playing"
+              class="sb-icon sb-icon-playing"
+              hidden role="listitem"
+              data-l10n-id="statusbarPlaying">
+            </div>`;
+  };
+
+  exports.PlayingIcon = PlayingIcon;
+}(window));