From b1af4a5226067ec72bd34c86535366a460da9077 Mon Sep 17 00:00:00 2001
From: Etienne Segonzac <etienne@segonzac.info>
Date: Wed, 9 Oct 2013 15:26:32 +0200
Subject: [PATCH] Bug 910584 - Plugging headphones in during a call should turn
 off the speaker if it's on. r=Rik

---
 .../communications/dialer/js/calls_handler.js |  9 +++++
 .../dialer/test/unit/calls_handler_test.js    | 35 +++++++++++++++++++
 2 files changed, 44 insertions(+)

diff --git a/apps/communications/dialer/js/calls_handler.js b/apps/communications/dialer/js/calls_handler.js
index 0f2b434c22d2..09494f334f5a 100644
--- a/apps/communications/dialer/js/calls_handler.js
+++ b/apps/communications/dialer/js/calls_handler.js
@@ -64,6 +64,15 @@ var CallsHandler = (function callsHandler() {
       telephony.muted = false;
     }
 
+    var acm = navigator.mozAudioChannelManager;
+    if (acm) {
+      acm.addEventListener('headphoneschange', function onheadphoneschange() {
+        if (acm.headphones) {
+          CallScreen.turnSpeakerOff();
+        }
+      });
+    }
+
     postToMainWindow('ready');
   }
 
diff --git a/apps/communications/dialer/test/unit/calls_handler_test.js b/apps/communications/dialer/test/unit/calls_handler_test.js
index ddf8a6b0a14b..74c7d4878b30 100644
--- a/apps/communications/dialer/test/unit/calls_handler_test.js
+++ b/apps/communications/dialer/test/unit/calls_handler_test.js
@@ -1027,4 +1027,39 @@ suite('calls handler', function() {
       });
     });
   });
+
+  suite('> headphone support', function() {
+    var realACM;
+    var acmStub;
+
+    suiteSetup(function() {
+      acmStub = {
+        headphones: false,
+        addEventListener: function() {}
+      };
+
+      realACM = navigator.mozAudioChannelManager;
+      navigator.mozAudioChannelManager = acmStub;
+    });
+
+    suiteTeardown(function() {
+      navigator.mozAudioChannelManager = realACM;
+    });
+
+    suite('> pluging headphones in', function() {
+      var headphonesChange;
+
+      setup(function() {
+        acmStub.headphones = true;
+        headphonesChange = this.sinon.stub(acmStub, 'addEventListener');
+        CallsHandler.setup();
+      });
+
+      test('should turn the speakerOff', function() {
+        var turnOffSpy = this.sinon.spy(MockCallScreen, 'turnSpeakerOff');
+        headphonesChange.yield();
+        assert.isTrue(turnOffSpy.calledOnce);
+      });
+    });
+  });
 });