Add global microphone mute key for keyboard

This change will enable the "mic mute" key on keyboards to globally mute
the microphone using the SensorManager, which has UI implemented in
multiple places (quick shortcuts, privacy center, settings...).

Test: manual
Bug: 237355207
Signed-off-by: LiZhihong <lizh52@lenovo.corp-partner.google.com>
Signed-off-by: DingYong <dingyong2@lenovo.corp-partner.google.com>
Change-Id: I492e501503b0ab9f56e1fa84fcc77a8c798bcb83

3 files changed, 21 insertions, 4 deletions

diff --git a/core/java/android/view/KeyEvent.java b/core/java/android/view/KeyEvent.java
index c3a638c4c36a..efb95749c4fe 100644
--- a/core/java/android/view/KeyEvent.java
+++ b/core/java/android/view/KeyEvent.java
@@ -1975,7 +1975,6 @@ public class KeyEvent extends InputEvent implements Parcelable {
             case KeyEvent.KEYCODE_MEDIA_PLAY:
             case KeyEvent.KEYCODE_MEDIA_PAUSE:
             case KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE:
-            case KeyEvent.KEYCODE_MUTE:
             case KeyEvent.KEYCODE_HEADSETHOOK:
             case KeyEvent.KEYCODE_MEDIA_STOP:
             case KeyEvent.KEYCODE_MEDIA_NEXT:
diff --git a/core/java/com/android/internal/policy/PhoneFallbackEventHandler.java b/core/java/com/android/internal/policy/PhoneFallbackEventHandler.java
index a09c8236b47d..04dd2d72729d 100644
--- a/core/java/com/android/internal/policy/PhoneFallbackEventHandler.java
+++ b/core/java/com/android/internal/policy/PhoneFallbackEventHandler.java
@@ -97,7 +97,6 @@ public class PhoneFallbackEventHandler implements FallbackEventHandler {
             case KeyEvent.KEYCODE_MEDIA_PLAY:
             case KeyEvent.KEYCODE_MEDIA_PAUSE:
             case KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE:
-            case KeyEvent.KEYCODE_MUTE:
             case KeyEvent.KEYCODE_HEADSETHOOK:
             case KeyEvent.KEYCODE_MEDIA_STOP:
             case KeyEvent.KEYCODE_MEDIA_NEXT:
@@ -224,7 +223,6 @@ public class PhoneFallbackEventHandler implements FallbackEventHandler {
             }
 
             case KeyEvent.KEYCODE_HEADSETHOOK:
-            case KeyEvent.KEYCODE_MUTE:
             case KeyEvent.KEYCODE_MEDIA_PLAY:
             case KeyEvent.KEYCODE_MEDIA_PAUSE:
             case KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE:
diff --git a/services/core/java/com/android/server/policy/PhoneWindowManager.java b/services/core/java/com/android/server/policy/PhoneWindowManager.java
index d8e7fbe8b296..715076dc0894 100644
--- a/services/core/java/com/android/server/policy/PhoneWindowManager.java
+++ b/services/core/java/com/android/server/policy/PhoneWindowManager.java
@@ -117,6 +117,7 @@ import android.content.res.Configuration;
 import android.content.res.Resources;
 import android.database.ContentObserver;
 import android.graphics.Rect;
+import android.hardware.SensorPrivacyManager;
 import android.hardware.display.DisplayManager;
 import android.hardware.display.DisplayManagerInternal;
 import android.hardware.hdmi.HdmiAudioSystemClient;
@@ -395,6 +396,7 @@ public class PhoneWindowManager implements WindowManagerPolicy {
     IStatusBarService mStatusBarService;
     StatusBarManagerInternal mStatusBarManagerInternal;
     AudioManagerInternal mAudioManagerInternal;
+    SensorPrivacyManager mSensorPrivacyManager;
     DisplayManager mDisplayManager;
     DisplayManagerInternal mDisplayManagerInternal;
     boolean mPreloadedRecentApps;
@@ -1882,6 +1884,7 @@ public class PhoneWindowManager implements WindowManagerPolicy {
         mDreamManagerInternal = LocalServices.getService(DreamManagerInternal.class);
         mPowerManagerInternal = LocalServices.getService(PowerManagerInternal.class);
         mAppOpsManager = mContext.getSystemService(AppOpsManager.class);
+        mSensorPrivacyManager = mContext.getSystemService(SensorPrivacyManager.class);
         mDisplayManager = mContext.getSystemService(DisplayManager.class);
         mDisplayManagerInternal = LocalServices.getService(DisplayManagerInternal.class);
         mPackageManager = mContext.getPackageManager();
@@ -3019,6 +3022,18 @@ public class PhoneWindowManager implements WindowManagerPolicy {
         return key_not_consumed;
     }
 
+    private void toggleMicrophoneMuteFromKey() {
+        if (mSensorPrivacyManager.supportsSensorToggle(
+                SensorPrivacyManager.TOGGLE_TYPE_SOFTWARE,
+                SensorPrivacyManager.Sensors.MICROPHONE)) {
+            boolean isEnabled = mSensorPrivacyManager.isSensorPrivacyEnabled(
+                    SensorPrivacyManager.TOGGLE_TYPE_SOFTWARE,
+                    SensorPrivacyManager.Sensors.MICROPHONE);
+            mSensorPrivacyManager.setSensorPrivacy(SensorPrivacyManager.Sensors.MICROPHONE,
+                    !isEnabled);
+        }
+    }
+
     /**
      * TV only: recognizes a remote control gesture for capturing a bug report.
      */
@@ -3954,11 +3969,16 @@ public class PhoneWindowManager implements WindowManagerPolicy {
                 break;
             }
 
+            case KeyEvent.KEYCODE_MUTE:
+                result &= ~ACTION_PASS_TO_USER;
+                if (down && event.getRepeatCount() == 0) {
+                    toggleMicrophoneMuteFromKey();
+                }
+                break;
             case KeyEvent.KEYCODE_MEDIA_PLAY:
             case KeyEvent.KEYCODE_MEDIA_PAUSE:
             case KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE:
             case KeyEvent.KEYCODE_HEADSETHOOK:
-            case KeyEvent.KEYCODE_MUTE:
             case KeyEvent.KEYCODE_MEDIA_STOP:
             case KeyEvent.KEYCODE_MEDIA_NEXT:
             case KeyEvent.KEYCODE_MEDIA_PREVIOUS: