108 lines
3.9 KiB
Kotlin
108 lines
3.9 KiB
Kotlin
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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package org.mozilla.fenix.widget
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import android.content.ComponentName
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import android.content.Intent
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import android.os.Bundle
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import android.speech.RecognizerIntent
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import androidx.appcompat.app.AppCompatActivity
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import mozilla.components.support.locale.LocaleManager
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import org.mozilla.fenix.HomeActivity
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import org.mozilla.fenix.IntentReceiverActivity
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import org.mozilla.fenix.components.metrics.Event
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import org.mozilla.fenix.ext.metrics
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/**
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* Launches voice recognition then uses it to start a new web search.
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*/
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class VoiceSearchActivity : AppCompatActivity() {
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/**
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* Holds the intent that initially started this activity
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* so that it can persist through the speech activity.
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*/
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private var previousIntent: Intent? = null
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override fun onSaveInstanceState(outState: Bundle) {
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super.onSaveInstanceState(outState)
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outState.putParcelable(PREVIOUS_INTENT, previousIntent)
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}
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override fun onCreate(savedInstanceState: Bundle?) {
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super.onCreate(savedInstanceState)
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if (Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH).resolveActivity(packageManager) == null) {
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finish()
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return
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}
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// Retrieve the previous intent from the saved state
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previousIntent = savedInstanceState?.get(PREVIOUS_INTENT) as Intent?
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if (previousIntent.isForSpeechProcessing()) {
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// Don't reopen the speech recognizer
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return
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}
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// The intent property is nullable, but the rest of the code below assumes it is not.
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val intent = intent?.let { Intent(intent) } ?: Intent()
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if (intent.isForSpeechProcessing()) {
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previousIntent = intent
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displaySpeechRecognizer()
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} else {
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finish()
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}
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}
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/**
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* Displays a speech recognizer popup that listens for input from the user.
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*/
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private fun displaySpeechRecognizer() {
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val intentSpeech = Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH).apply {
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putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, RecognizerIntent.LANGUAGE_MODEL_FREE_FORM)
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putExtra(RecognizerIntent.EXTRA_LANGUAGE, LocaleManager.getCurrentLocale(this@VoiceSearchActivity))
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}
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metrics.track(Event.SearchWidgetVoiceSearchPressed)
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startActivityForResult(intentSpeech, SPEECH_REQUEST_CODE)
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}
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override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
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super.onActivityResult(requestCode, resultCode, data)
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if (requestCode == SPEECH_REQUEST_CODE && resultCode == RESULT_OK) {
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val spokenText = data?.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS)?.first()
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val context = this
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previousIntent?.apply {
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component = ComponentName(context, IntentReceiverActivity::class.java)
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putExtra(SPEECH_PROCESSING, spokenText)
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putExtra(HomeActivity.OPEN_TO_BROWSER_AND_LOAD, true)
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startActivity(this)
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}
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}
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finish()
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}
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/**
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* Returns true if the [SPEECH_PROCESSING] extra is present and set to true.
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* Returns false if the intent is null.
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*/
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private fun Intent?.isForSpeechProcessing(): Boolean =
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this?.getBooleanExtra(SPEECH_PROCESSING, false) == true
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companion object {
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internal const val SPEECH_REQUEST_CODE = 0
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internal const val PREVIOUS_INTENT = "org.mozilla.fenix.previous_intent"
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/**
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* In [VoiceSearchActivity] activity, used to store if the speech processing should start.
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* In [IntentReceiverActivity] activity, used to store the search terms.
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*/
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const val SPEECH_PROCESSING = "speech_processing"
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}
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}
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