Adds ability to answer call with hardware HOME button (preparation to winter time)

Change-Id: I0d22a6fbb92a61f08b50cae5c14d0030b81ee6ec

1 files changed, 33 insertions, 0 deletions

diff --git a/src/com/android/settings/AccessibilitySettings.java b/src/com/android/settings/AccessibilitySettings.java
index b6556a9..b7e7c42 100644
--- a/src/com/android/settings/AccessibilitySettings.java
+++ b/src/com/android/settings/AccessibilitySettings.java
@@ -102,6 +102,8 @@ public class AccessibilitySettings extends SettingsPreferenceFragment implements
             "toggle_large_text_preference";
     private static final String TOGGLE_POWER_BUTTON_ENDS_CALL_PREFERENCE =
             "toggle_power_button_ends_call_preference";
+    private static final String TOGGLE_HOME_BUTTON_ANSWERS_CALL_PREFERENCE =
+            "toggle_home_button_answers_call_preference";
     private static final String TOGGLE_LOCK_SCREEN_ROTATION_PREFERENCE =
             "toggle_lock_screen_rotation_preference";
     private static final String TOGGLE_SPEAK_PASSWORD_PREFERENCE =
@@ -176,6 +178,7 @@ public class AccessibilitySettings extends SettingsPreferenceFragment implements
 
     private CheckBoxPreference mToggleLargeTextPreference;
     private CheckBoxPreference mTogglePowerButtonEndsCallPreference;
+    private CheckBoxPreference mToggleHomeButtonAnswersCallPreference;
     private CheckBoxPreference mToggleLockScreenRotationPreference;
     private CheckBoxPreference mToggleSpeakPasswordPreference;
     private ListPreference mSelectLongPressTimeoutPreference;
@@ -236,6 +239,9 @@ public class AccessibilitySettings extends SettingsPreferenceFragment implements
         } else if (mTogglePowerButtonEndsCallPreference == preference) {
             handleTogglePowerButtonEndsCallPreferenceClick();
             return true;
+        } else if (mToggleHomeButtonAnswersCallPreference == preference) {
+            handleToggleHomeButtonAnswersCallPreferenceClick();
+            return true;
         } else if (mToggleLockScreenRotationPreference == preference) {
             handleLockScreenRotationPreferenceClick();
             return true;
@@ -269,6 +275,14 @@ public class AccessibilitySettings extends SettingsPreferenceFragment implements
                         : Settings.Secure.INCALL_POWER_BUTTON_BEHAVIOR_SCREEN_OFF));
     }
 
+    private void handleToggleHomeButtonAnswersCallPreferenceClick() {
+        Settings.Secure.putInt(getContentResolver(),
+                Settings.Secure.RING_HOME_BUTTON_BEHAVIOR,
+                (mToggleHomeButtonAnswersCallPreference.isChecked()
+                        ? Settings.Secure.RING_HOME_BUTTON_BEHAVIOR_ANSWER
+                        : Settings.Secure.RING_HOME_BUTTON_BEHAVIOR_DO_NOTHING));
+    }
+
     private void handleLockScreenRotationPreferenceClick() {
         RotationPolicy.setRotationLockForAccessibility(getActivity(),
                 !mToggleLockScreenRotationPreference.isChecked());
@@ -320,6 +334,14 @@ public class AccessibilitySettings extends SettingsPreferenceFragment implements
             mSystemsCategory.removePreference(mTogglePowerButtonEndsCallPreference);
         }
 
+        // Home button answers calls.
+        mToggleHomeButtonAnswersCallPreference =
+            (CheckBoxPreference) findPreference(TOGGLE_HOME_BUTTON_ANSWERS_CALL_PREFERENCE);
+        if (!KeyCharacterMap.deviceHasKey(KeyEvent.KEYCODE_HOME)
+                || !Utils.isVoiceCapable(getActivity())) {
+            mSystemsCategory.removePreference(mToggleHomeButtonAnswersCallPreference);
+        }
+
         // Lock screen rotation.
         mToggleLockScreenRotationPreference =
                 (CheckBoxPreference) findPreference(TOGGLE_LOCK_SCREEN_ROTATION_PREFERENCE);
@@ -489,6 +511,17 @@ public class AccessibilitySettings extends SettingsPreferenceFragment implements
             mTogglePowerButtonEndsCallPreference.setChecked(powerButtonEndsCall);
         }
 
+        // Home button answers calls.
+        if (KeyCharacterMap.deviceHasKey(KeyEvent.KEYCODE_HOME)
+                && Utils.isVoiceCapable(getActivity())) {
+            final int incallHomeBehavior = Settings.Secure.getInt(getContentResolver(),
+                    Settings.Secure.RING_HOME_BUTTON_BEHAVIOR,
+                    Settings.Secure.RING_HOME_BUTTON_BEHAVIOR_DEFAULT);
+            final boolean homeButtonAnswersCall =
+                (incallHomeBehavior == Settings.Secure.RING_HOME_BUTTON_BEHAVIOR_ANSWER);
+            mToggleHomeButtonAnswersCallPreference.setChecked(homeButtonAnswersCall);
+        }
+
         // Auto-rotate screen
         updateLockScreenRotationCheckbox();