1 files changed, 129 insertions, 0 deletions
diff --git a/core/java/com/android/internal/app/AssistUtils.java b/core/java/com/android/internal/app/AssistUtils.java
new file mode 100644
index 0000000..b520384
--- /dev/null
+++ b/core/java/com/android/internal/app/AssistUtils.java
@@ -0,0 +1,129 @@
+/*
+ * Copyright (C) 2015 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.internal.app;
+
+import android.app.SearchManager;
+import android.content.ComponentName;
+import android.content.Context;
+import android.content.Intent;
+import android.os.RemoteException;
+import android.os.ServiceManager;
+import android.provider.Settings;
+import android.util.Log;
+
+/**
+ * Utility method for dealing with the assistant aspects of
+ * {@link com.android.internal.app.IVoiceInteractionManagerService IVoiceInteractionManagerService}.
+ */
+public class AssistUtils {
+
+    private static final String TAG = "AssistUtils";
+
+    private final Context mContext;
+    private final IVoiceInteractionManagerService mVoiceInteractionManagerService;
+
+    public AssistUtils(Context context) {
+        mContext = context;
+        mVoiceInteractionManagerService = IVoiceInteractionManagerService.Stub.asInterface(
+                ServiceManager.getService(Context.VOICE_INTERACTION_MANAGER_SERVICE));
+    }
+
+    public void showSessionForActiveService(IVoiceInteractionSessionShowCallback showCallback) {
+        try {
+            mVoiceInteractionManagerService.showSessionForActiveService(showCallback);
+        } catch (RemoteException e) {
+            Log.w(TAG, "Failed to call showSessionForActiveService", e);
+        }
+    }
+
+    public void launchVoiceAssistFromKeyguard() {
+        try {
+            mVoiceInteractionManagerService.launchVoiceAssistFromKeyguard();
+        } catch (RemoteException e) {
+            Log.w(TAG, "Failed to call launchVoiceAssistFromKeyguard", e);
+        }
+    }
+
+    public boolean activeServiceSupportsAssistGesture() {
+        try {
+            return mVoiceInteractionManagerService != null
+                    && mVoiceInteractionManagerService.activeServiceSupportsAssist();
+        } catch (RemoteException e) {
+            Log.w(TAG, "Failed to call activeServiceSupportsAssistGesture", e);
+            return false;
+        }
+    }
+
+    public boolean activeServiceSupportsLaunchFromKeyguard() {
+        try {
+            return mVoiceInteractionManagerService != null
+                    && mVoiceInteractionManagerService.activeServiceSupportsLaunchFromKeyguard();
+        } catch (RemoteException e) {
+            Log.w(TAG, "Failed to call activeServiceSupportsLaunchFromKeyguard", e);
+            return false;
+        }
+    }
+
+    public ComponentName getActiveServiceComponentName() {
+        try {
+            return mVoiceInteractionManagerService.getActiveServiceComponentName();
+        } catch (RemoteException e) {
+            Log.w(TAG, "Failed to call getActiveServiceComponentName", e);
+            return null;
+        }
+    }
+
+    public boolean isSessionRunning() {
+        try {
+            return mVoiceInteractionManagerService != null
+                    && mVoiceInteractionManagerService.isSessionRunning();
+        } catch (RemoteException e) {
+            Log.w(TAG, "Failed to call isSessionRunning", e);
+            return false;
+        }
+    }
+
+    public void hideCurrentSession() {
+        try {
+            mVoiceInteractionManagerService.hideCurrentSession();
+        } catch (RemoteException e) {
+            Log.w(TAG, "Failed to call hideCurrentSession", e);
+        }
+    }
+
+    public ComponentName getAssistComponentForUser(int userId) {
+        final String setting = Settings.Secure.getStringForUser(mContext.getContentResolver(),
+                Settings.Secure.ASSISTANT, userId);
+        if (setting != null) {
+            return ComponentName.unflattenFromString(setting);
+        }
+
+        // Fallback to keep backward compatible behavior when there is no user setting.
+        if (activeServiceSupportsAssistGesture()) {
+            return getActiveServiceComponentName();
+        }
+
+        Intent intent = ((SearchManager) mContext.getSystemService(Context.SEARCH_SERVICE))
+                .getAssistIntent(mContext, false, userId);
+        if (intent != null) {
+            return intent.getComponent();
+        }
+
+        return null;
+    }
+
+}