Initial safari compatibility (#1609)

* Update environment info to return the 'safari' browser

* Fix popup display on Safari

* Update environment assignment

* Add data-loading-stalled property when loading takes longer than expected

* Add notification when loading has stalled

* Allow getDictionaryInfo invocation on non-privileged contexts

* Update _validatePrivilegedMessageSender

* Don't listen to 'voiceschanged' event unless addEventListener is present

Also expose an event

1 files changed, 1 insertions, 3 deletions

diff --git a/ext/js/pages/settings/audio-controller.js b/ext/js/pages/settings/audio-controller.js
index e62383a8..6b1ce0b5 100644
--- a/ext/js/pages/settings/audio-controller.js
+++ b/ext/js/pages/settings/audio-controller.js
@@ -39,9 +39,7 @@ class AudioController {
 
         this._audioSourceAddButton.addEventListener('click', this._onAddAudioSource.bind(this), false);
 
-        if (typeof speechSynthesis !== 'undefined') {
-            speechSynthesis.addEventListener('voiceschanged', this._updateTextToSpeechVoices.bind(this), false);
-        }
+        this._audioSystem.on('voiceschanged', this._updateTextToSpeechVoices.bind(this), false);
         this._updateTextToSpeechVoices();
 
         document.querySelector('#text-to-speech-voice-test').addEventListener('click', this._onTestTextToSpeech.bind(this), false);