1 files changed, 104 insertions, 0 deletions
diff --git a/java/src/com/android/inputmethod/latin/AudioAndHapticFeedbackManager.java b/java/src/com/android/inputmethod/latin/AudioAndHapticFeedbackManager.java
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index 000000000..55664d411
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+++ b/java/src/com/android/inputmethod/latin/AudioAndHapticFeedbackManager.java
@@ -0,0 +1,104 @@
+/*
+ * Copyright (C) 2012 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.
+ */
+
+package com.android.inputmethod.latin;
+
+import android.content.Context;
+import android.media.AudioManager;
+import android.view.HapticFeedbackConstants;
+import android.view.View;
+
+import com.android.inputmethod.keyboard.Keyboard;
+import com.android.inputmethod.latin.VibratorUtils;
+
+/**
+ * This class gathers audio feedback and haptic feedback functions.
+ *
+ * It offers a consistent and simple interface that allows LatinIME to forget about the
+ * complexity of settings and the like.
+ */
+public class AudioAndHapticFeedbackManager {
+    final private SettingsValues mSettingsValues;
+    final private AudioManager mAudioManager;
+    final private VibratorUtils mVibratorUtils;
+    private boolean mSoundOn;
+
+    public AudioAndHapticFeedbackManager(final LatinIME latinIme,
+            final SettingsValues settingsValues) {
+        mSettingsValues = settingsValues;
+        mVibratorUtils = VibratorUtils.getInstance(latinIme);
+        mAudioManager = (AudioManager) latinIme.getSystemService(Context.AUDIO_SERVICE);
+        mSoundOn = reevaluateIfSoundIsOn();
+    }
+
+    public void hapticAndAudioFeedback(final int primaryCode,
+            final View viewToPerformHapticFeedbackOn) {
+        vibrate(viewToPerformHapticFeedbackOn);
+        playKeyClick(primaryCode);
+    }
+
+    private boolean reevaluateIfSoundIsOn() {
+        if (!mSettingsValues.mSoundOn || mAudioManager == null) {
+            return false;
+        } else {
+            return mAudioManager.getRingerMode() == AudioManager.RINGER_MODE_NORMAL;
+        }
+    }
+
+    private void playKeyClick(int primaryCode) {
+        // if mAudioManager is null, we can't play a sound anyway, so return
+        if (mAudioManager == null) return;
+        if (mSoundOn) {
+            final int sound;
+            switch (primaryCode) {
+            case Keyboard.CODE_DELETE:
+                sound = AudioManager.FX_KEYPRESS_DELETE;
+                break;
+            case Keyboard.CODE_ENTER:
+                sound = AudioManager.FX_KEYPRESS_RETURN;
+                break;
+            case Keyboard.CODE_SPACE:
+                sound = AudioManager.FX_KEYPRESS_SPACEBAR;
+                break;
+            default:
+                sound = AudioManager.FX_KEYPRESS_STANDARD;
+                break;
+            }
+            mAudioManager.playSoundEffect(sound, mSettingsValues.mFxVolume);
+        }
+    }
+
+    // TODO: make this private when LatinIME does not call it any more
+    public void vibrate(final View viewToPerformHapticFeedbackOn) {
+        if (!mSettingsValues.mVibrateOn) {
+            return;
+        }
+        if (mSettingsValues.mKeypressVibrationDuration < 0) {
+            // Go ahead with the system default
+            if (viewToPerformHapticFeedbackOn != null) {
+                viewToPerformHapticFeedbackOn.performHapticFeedback(
+                        HapticFeedbackConstants.KEYBOARD_TAP,
+                        HapticFeedbackConstants.FLAG_IGNORE_GLOBAL_SETTING);
+            }
+        } else if (mVibratorUtils != null) {
+            mVibratorUtils.vibrate(mSettingsValues.mKeypressVibrationDuration);
+        }
+    }
+
+    public void onRingerModeChanged() {
+        mSoundOn = reevaluateIfSoundIsOn();
+    }
+}