From 4174655e23734563775acb9e1e644b31b9e72fa5 Mon Sep 17 00:00:00 2001
From: Ken Wakasa <kwakasa@google.com>
Date: Thu, 11 Nov 2010 18:15:41 +0900
Subject: [PATCH] Check the system vibrator availability for the "Vibrate on
 keypress" preference.

bug: 3021001
Change-Id: I7843a3e4765333c720fd8f258c1fffdf6f090d3a
---
 java/src/com/android/inputmethod/latin/LatinIME.java      | 6 ++++--
 .../com/android/inputmethod/latin/LatinIMESettings.java   | 8 ++++++++
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/java/src/com/android/inputmethod/latin/LatinIME.java b/java/src/com/android/inputmethod/latin/LatinIME.java
index 60828c372..e2b85c525 100644
--- a/java/src/com/android/inputmethod/latin/LatinIME.java
+++ b/java/src/com/android/inputmethod/latin/LatinIME.java
@@ -39,6 +39,7 @@ import android.os.Debug;
 import android.os.Handler;
 import android.os.Message;
 import android.os.SystemClock;
+import android.os.Vibrator;
 import android.preference.PreferenceActivity;
 import android.preference.PreferenceManager;
 import android.speech.SpeechRecognizer;
@@ -89,7 +90,6 @@ public class LatinIME extends InputMethodService
     static final boolean VOICE_INSTALLED = true;
     static final boolean ENABLE_VOICE_BUTTON = true;
 
-    private static final String PREF_VIBRATE_ON = "vibrate_on";
     private static final String PREF_SOUND_ON = "sound_on";
     private static final String PREF_POPUP_ON = "popup_on";
     private static final String PREF_AUTO_CAP = "auto_cap";
@@ -2533,7 +2533,9 @@ public class LatinIME extends InputMethodService
     private void loadSettings(EditorInfo attribute) {
         // Get the settings preferences
         SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(this);
-        mVibrateOn = sp.getBoolean(PREF_VIBRATE_ON, false);
+        Vibrator vibrator = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE);
+        mVibrateOn = vibrator != null && vibrator.hasVibrator()
+                && sp.getBoolean(LatinIMESettings.PREF_VIBRATE_ON, false);
         mSoundOn = sp.getBoolean(PREF_SOUND_ON, false);
         mPopupOn = sp.getBoolean(PREF_POPUP_ON,
                 mResources.getBoolean(R.bool.default_popup_preview));
diff --git a/java/src/com/android/inputmethod/latin/LatinIMESettings.java b/java/src/com/android/inputmethod/latin/LatinIMESettings.java
index 4f20e9b10..d8f3ebc51 100644
--- a/java/src/com/android/inputmethod/latin/LatinIMESettings.java
+++ b/java/src/com/android/inputmethod/latin/LatinIMESettings.java
@@ -25,6 +25,7 @@ import android.app.backup.BackupManager;
 import android.content.DialogInterface;
 import android.content.SharedPreferences;
 import android.os.Bundle;
+import android.os.Vibrator;
 import android.preference.CheckBoxPreference;
 import android.preference.ListPreference;
 import android.preference.PreferenceActivity;
@@ -47,6 +48,7 @@ public class LatinIMESettings extends PreferenceActivity
     private static final String PREF_AUTO_COMPLETION_THRESHOLD = "auto_completion_threshold";
     private static final String PREF_BIGRAM_SUGGESTIONS = "bigram_suggestion";
     /* package */ static final String PREF_SETTINGS_KEY = "settings_key";
+    /* package */ static final String PREF_VIBRATE_ON = "vibrate_on";
 
     private static final String TAG = "LatinIMESettings";
 
@@ -101,6 +103,12 @@ public class LatinIMESettings extends PreferenceActivity
                 R.bool.config_enable_show_settings_key_option);
         if (!showSettingsKeyOption)
             getPreferenceScreen().removePreference(mSettingsKeyPreference);
+
+        Vibrator vibrator = (Vibrator) getSystemService(VIBRATOR_SERVICE);
+        if (vibrator == null || !vibrator.hasVibrator()) {
+            getPreferenceScreen().removePreference(
+                    getPreferenceScreen().findPreference(PREF_VIBRATE_ON));
+        }
     }
 
     @Override