VoiceRecognitionTrigger.java

/*
 * Copyright (c) 2013 Menny Even-Danan
 *
 * 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.anysoftkeyboard.voice;

import android.content.Intent;
import android.inputmethodservice.InputMethodService;
import com.anysoftkeyboard.utils.Log;

/**
 * Triggers a voice recognition by using {@link ImeTrigger} or
 * {@link IntentApiTrigger}.
 */
public class VoiceRecognitionTrigger implements VoiceInput {
    private static final String TAG = "ASK_VoiceRecognitionTrigger";

    protected final InputMethodService mInputMethodService;

    private Trigger mTrigger;

    public VoiceRecognitionTrigger(VoiceInputDiagram diagram) {
        mInputMethodService = diagram.getInputMethodService();
        mTrigger = getTrigger();
    }

    protected Trigger getTrigger() {
        if (IntentApiTrigger.isInstalled(mInputMethodService)) {
            return getIntentTrigger();
        } else {
            Log.d(TAG, "IntentApiTrigger is not installed");
            return null;
        }
    }

    private Trigger getIntentTrigger() {
        return new IntentApiTrigger(mInputMethodService);
    }

    /**
     * Starts a voice recognition. The language of the recognition will match
     * the voice search language settings, or the locale of the calling IME.
     */
    public void startVoiceRecognition() {
        startVoiceRecognition(null);
    }

    /*
     * (non-Javadoc)
     *
     * @see
     * com.anysoftkeyboard.voice.VoiceInput#startVoiceRecognition(java.lang.
     * String)
     */
    public void startVoiceRecognition(String language) {
        // The trigger is refreshed as the system may have changed in the
        // meanwhile.
        mTrigger = getTrigger();
        if (mTrigger != null) {
            mTrigger.startVoiceRecognition(language);
        } else {
            Intent notInstalledActivity = new Intent(
                    mInputMethodService.getApplicationContext(),
                    VoiceInputNotInstalledActivity.class);
            notInstalledActivity.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            mInputMethodService.getApplicationContext().startActivity(
                    notInstalledActivity);
        }
    }

    /*
     * (non-Javadoc)
     *
     * @see com.anysoftkeyboard.voice.VoiceInput#onStartInputView()
     */
    public void onStartInputView() {
        if (mTrigger != null) {
            mTrigger.onStartInputView();
        }
    }
}