Tweak LatinIME's keypress vibration duration

bug: 5337363
Change-Id: If6e6de587cbcddf26710d8f0b237c4bc393589b6

java/res/values/keypress-vibration-durations.xml

@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+**
+** Copyright 2011, The Android Open Source Project
+**
+** Licensed under the Apache License, Version 2.0 (the "License");
+** you may not use this file except in compliance with the License.
+** You may obtain a copy of the License at
+**
+**     http://www.apache.org/licenses/LICENSE-2.0
+**
+** Unless required by applicable law or agreed to in writing, software
+** distributed under the License is distributed on an "AS IS" BASIS,
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+** See the License for the specific language governing permissions and
+** limitations under the License.
+*/
+-->
+<resources>
+    <string-array name="keypress_vibration_durations" translatable="false">
+        <!-- Build.HARDWARE,duration_in_milliseconds -->
+        <item>herring,4</item>
+        <item>tuna,5</item>
+    </string-array>
+</resources>

java/src/com/android/inputmethod/compat/VibratorCompatWrapper.java

@@ -44,4 +44,8 @@ public class VibratorCompatWrapper {
             return false;
         return (Boolean) CompatUtils.invoke(mVibrator, true, METHOD_hasVibrator);
     }
+
+    public void vibrate(long milliseconds) {
+        mVibrator.vibrate(milliseconds);
+    }
 }

java/src/com/android/inputmethod/latin/LatinIME.java

@@ -28,6 +28,7 @@ import android.content.res.Resources;
 import android.inputmethodservice.InputMethodService;
 import android.media.AudioManager;
 import android.net.ConnectivityManager;
+import android.os.Build;
 import android.os.Debug;
 import android.os.Message;
 import android.os.SystemClock;
@@ -56,6 +57,7 @@ import com.android.inputmethod.compat.InputMethodManagerCompatWrapper;
 import com.android.inputmethod.compat.InputMethodServiceCompatWrapper;
 import com.android.inputmethod.compat.InputTypeCompatUtils;
 import com.android.inputmethod.compat.SuggestionSpanUtils;
+import com.android.inputmethod.compat.VibratorCompatWrapper;
 import com.android.inputmethod.deprecated.LanguageSwitcherProxy;
 import com.android.inputmethod.deprecated.VoiceProxy;
 import com.android.inputmethod.deprecated.recorrection.Recorrection;
@@ -211,6 +213,9 @@ public class LatinIME extends InputMethodServiceCompatWrapper implements Keyboar
     private static float mFxVolume = -1.0f; // just a default value to be updated runtime
     private boolean mSilentModeOn; // System-wide current configuration
 
+    private VibratorCompatWrapper mVibrator;
+    private long mKeypressVibrationDuration = -1;
+
     // TODO: Move this flag to VoiceProxy
     private boolean mConfigurationChanging;
 
@@ -434,13 +439,14 @@ public class LatinIME extends InputMethodServiceCompatWrapper implements Keyboar
         mSubtypeSwitcher = SubtypeSwitcher.getInstance();
         mKeyboardSwitcher = KeyboardSwitcher.getInstance();
         mRecorrection = Recorrection.getInstance();
+        mVibrator = VibratorCompatWrapper.getInstance(this);
         DEBUG = LatinImeLogger.sDBG;
 
-        loadSettings();
-
         final Resources res = getResources();
         mResources = res;
 
+        loadSettings();
+
         Utils.GCUtils.getInstance().reset();
         boolean tryGC = true;
         for (int i = 0; i < Utils.GCUtils.GC_TRY_LOOP_MAX && tryGC; ++i) {
@@ -481,6 +487,7 @@ public class LatinIME extends InputMethodServiceCompatWrapper implements Keyboar
         mSettingsValues = new Settings.Values(mPrefs, this, mSubtypeSwitcher.getInputLocaleStr());
         resetContactsDictionary(null == mSuggest ? null : mSuggest.getContactsDictionary());
         updateSoundEffectVolume();
+        updateKeypressVibrationDuration();
     }
 
     private void initSuggest() {
@@ -2062,6 +2069,19 @@ public class LatinIME extends InputMethodServiceCompatWrapper implements Keyboar
         mSilentModeOn = (mAudioManager.getRingerMode() != AudioManager.RINGER_MODE_NORMAL);
     }
 
+    private void updateKeypressVibrationDuration() {
+        final String[] durationPerHardwareList = mResources.getStringArray(
+                R.array.keypress_vibration_durations);
+        final String hardwarePrefix = Build.HARDWARE + ",";
+        for (final String element : durationPerHardwareList) {
+            if (element.startsWith(hardwarePrefix)) {
+                mKeypressVibrationDuration =
+                        Long.parseLong(element.substring(element.lastIndexOf(',') + 1));
+                break;
+            }
+        }
+    }
+
     private void playKeyClick(int primaryCode) {
         // if mAudioManager is null, we don't have the ringer state yet
         // mAudioManager will be set by updateRingerMode
@@ -2091,12 +2111,17 @@ public class LatinIME extends InputMethodServiceCompatWrapper implements Keyboar
         if (!mSettingsValues.mVibrateOn) {
             return;
         }
+        if (mKeypressVibrationDuration < 0) {
+            // Go ahead with the system default
             LatinKeyboardView inputView = mKeyboardSwitcher.getKeyboardView();
             if (inputView != null) {
                 inputView.performHapticFeedback(
                         HapticFeedbackConstants.KEYBOARD_TAP,
                         HapticFeedbackConstants.FLAG_IGNORE_GLOBAL_SETTING);
             }
+        } else if (mVibrator != null) {
+            mVibrator.vibrate(mKeypressVibrationDuration);
+        }
     }
 
     public WordComposer getCurrentWord() {