From de06d5234a4680104def0f7fbe8d21b7bb2355a6 Mon Sep 17 00:00:00 2001
From: Buddy Reno <buddy.reno@daveramsey.com>
Date: Fri, 27 Jul 2018 11:27:09 -0500
Subject: [PATCH] Add support for bluetooth headset detection.

---
 .gitignore                                    |  3 +-
 plugin.xml                                    |  7 ++-
 .../xservices/plugins/HeadsetDetection.java   | 47 +++++++++++++------
 3 files changed, 38 insertions(+), 19 deletions(-)

diff --git a/.gitignore b/.gitignore
index 29b636a..ea0080b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 .idea
-*.iml
\ No newline at end of file
+*.iml
+.vscode
\ No newline at end of file
diff --git a/plugin.xml b/plugin.xml
index 3a52097..d81c479 100755
--- a/plugin.xml
+++ b/plugin.xml
@@ -1,8 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<plugin xmlns="http://apache.org/cordova/ns/plugins/1.0"
-        xmlns:android="http://schemas.android.com/apk/res/android"
-        id="cordova-plugin-headsetdetection"
-        version="3.0.0">
+<plugin xmlns="http://apache.org/cordova/ns/plugins/1.0" 
+  xmlns:android="http://schemas.android.com/apk/res/android" id="cordova-plugin-headsetdetection" version="3.0.0">
 
   <name>Headset Detection</name>
 
@@ -42,6 +40,7 @@
     </config-file>
 
     <config-file target="AndroidManifest.xml" parent="/manifest">
+      <uses-permission android:name="android.permission.BLUETOOTH" />
       <uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS"/>
     </config-file>
 
diff --git a/src/android/nl/xservices/plugins/HeadsetDetection.java b/src/android/nl/xservices/plugins/HeadsetDetection.java
index 27f5ace..cead2f3 100644
--- a/src/android/nl/xservices/plugins/HeadsetDetection.java
+++ b/src/android/nl/xservices/plugins/HeadsetDetection.java
@@ -6,6 +6,7 @@
 import org.apache.cordova.CordovaInterface;
 import org.apache.cordova.CordovaWebView;
 
+import android.bluetooth.BluetoothHeadset;
 import android.content.Context;
 import android.media.AudioManager;
 import android.content.Intent;
@@ -23,6 +24,9 @@ public class HeadsetDetection extends CordovaPlugin {
 
   private static final String ACTION_DETECT = "detect";
   private static final String ACTION_EVENT = "registerRemoteEvents";
+  private static final int DEFAULT_STATE = -1;
+  private static final int DISCONNECTED = 0;
+  private static final int CONNECTED = 1;
   protected static CordovaWebView mCachedWebView = null;
 
   BroadcastReceiver receiver;
@@ -37,23 +41,20 @@ public void initialize(CordovaInterface cordova, CordovaWebView webView) {
       mCachedWebView = webView;
       IntentFilter intentFilter = new IntentFilter();
       intentFilter.addAction(Intent.ACTION_HEADSET_PLUG);
+      intentFilter.addAction(BluetoothHeadset.ACTION_CONNECTION_STATE_CHANGED);
       this.receiver = new BroadcastReceiver() {
           @Override
           public void onReceive(Context context, Intent intent) {
-              if (intent.getAction().equals(Intent.ACTION_HEADSET_PLUG)) {
-                  int state = intent.getIntExtra("state", -1);
-                  switch (state) {
-                  case 0:
-                      Log.d(LOG_TAG, "Headset is unplugged");
-                      mCachedWebView.sendJavascript("cordova.require('cordova-plugin-headsetdetection.HeadsetDetection').remoteHeadsetRemoved();");
-                      break;
-                  case 1:
-                      Log.d(LOG_TAG, "Headset is plugged");
-                      mCachedWebView.sendJavascript("cordova.require('cordova-plugin-headsetdetection.HeadsetDetection').remoteHeadsetAdded();");
-                      break;
-                  default:
-                      Log.d(LOG_TAG, "I have no idea what the headset state is");
-                  }
+              int status = getConnectionStatus(intent.getAction(), intent);
+
+              if (status == CONNECTED) {
+                Log.d(LOG_TAG, "Headset is connected");
+                mCachedWebView.sendJavascript("cordova.require('cordova-plugin-headsetdetection.HeadsetDetection').remoteHeadsetAdded();");
+              } else if (status == DISCONNECTED) {
+                Log.d(LOG_TAG, "Headset is disconnected");
+                mCachedWebView.sendJavascript("cordova.require('cordova-plugin-headsetdetection.HeadsetDetection').remoteHeadsetRemoved();");
+              } else {
+                Log.d(LOG_TAG, "Headset state is unknown: " + status);
               }
           }
       };
@@ -91,6 +92,24 @@ public void onReset() {
       removeHeadsetListener();
   }
 
+  private int getConnectionStatus(String action, Intent intent) {
+      int state = DEFAULT_STATE;
+      int normalizedState = DEFAULT_STATE;
+      if (action.equals(Intent.ACTION_HEADSET_PLUG)) {
+        state = intent.getIntExtra("state", DEFAULT_STATE);
+      } else if (action.equals(BluetoothHeadset.ACTION_CONNECTION_STATE_CHANGED)) {
+        state = intent.getIntExtra(BluetoothHeadset.EXTRA_STATE, DEFAULT_STATE);
+      }
+
+      if ((state == 1 && action.equals(Intent.ACTION_HEADSET_PLUG)) || (state == 2 && action.equals(BluetoothHeadset.ACTION_CONNECTION_STATE_CHANGED))) {
+          normalizedState = CONNECTED;
+      } else if (state == 0) {
+          normalizedState = DISCONNECTED;
+      }
+
+      return normalizedState;
+  }
+
   private void removeHeadsetListener() {
       if (this.receiver != null) {
           try {