Respect incognito mode in search

app/src/main/java/org/koitharu/kotatsu/main/ui/MainActivity.kt

@@ -7,6 +7,7 @@ import android.os.Bundle
 import android.util.SparseIntArray
 import android.view.MenuItem
 import android.view.View
+import android.view.inputmethod.EditorInfo
 import androidx.activity.result.ActivityResultCallback
 import androidx.activity.viewModels
 import androidx.appcompat.view.ActionMode
@@ -17,6 +18,7 @@ import androidx.core.graphics.Insets
 import androidx.core.util.size
 import androidx.core.view.ViewCompat
 import androidx.core.view.WindowInsetsCompat
+import androidx.core.view.inputmethod.EditorInfoCompat
 import androidx.core.view.isVisible
 import androidx.core.view.updateLayoutParams
 import androidx.core.view.updatePadding
@@ -129,6 +131,7 @@ class MainActivity :
 		viewModel.isResumeEnabled.observe(this, this::onResumeEnabledChanged)
 		viewModel.counters.observe(this, ::onCountersChanged)
 		viewModel.isFeedAvailable.observe(this, ::onFeedAvailabilityChanged)
+		searchSuggestionViewModel.isIncognitoModeEnabled.observe(this, this::onIncognitoModeChanged)
 	}
 
 	override fun onRestoreInstanceState(savedInstanceState: Bundle) {
@@ -274,6 +277,16 @@ class MainActivity :
 		navigationDelegate.setItemVisibility(R.id.nav_feed, isFeedAvailable)
 	}
 
+	private fun onIncognitoModeChanged(isIncognito: Boolean) {
+		var options = binding.searchView.imeOptions
+		options = if (isIncognito) {
+			options or EditorInfoCompat.IME_FLAG_NO_PERSONALIZED_LEARNING
+		} else {
+			options and EditorInfoCompat.IME_FLAG_NO_PERSONALIZED_LEARNING.inv()
+		}
+		binding.searchView.imeOptions = options
+	}
+
 	private fun onLoadingStateChanged(isLoading: Boolean) {
 		binding.fab?.isEnabled = !isLoading
 	}

app/src/main/java/org/koitharu/kotatsu/search/ui/SearchActivity.kt

@@ -6,6 +6,7 @@ import android.os.Bundle
 import androidx.activity.viewModels
 import androidx.appcompat.widget.SearchView
 import androidx.core.graphics.Insets
+import androidx.core.view.inputmethod.EditorInfoCompat
 import androidx.core.view.updatePadding
 import androidx.fragment.app.commit
 import dagger.hilt.android.AndroidEntryPoint
@@ -15,7 +16,6 @@ import org.koitharu.kotatsu.databinding.ActivitySearchBinding
 import org.koitharu.kotatsu.parsers.model.MangaSource
 import org.koitharu.kotatsu.search.ui.suggestion.SearchSuggestionViewModel
 import org.koitharu.kotatsu.utils.ext.showKeyboard
-import kotlin.text.Typography.dagger
 
 @AndroidEntryPoint
 class SearchActivity : BaseActivity<ActivitySearchBinding>(), SearchView.OnQueryTextListener {
@@ -32,6 +32,7 @@ class SearchActivity : BaseActivity<ActivitySearchBinding>(), SearchView.OnQuery
 		}
 		val query = intent.getStringExtra(EXTRA_QUERY)
 		supportActionBar?.setDisplayHomeAsUpEnabled(true)
+		searchSuggestionViewModel.isIncognitoModeEnabled.observe(this, this::onIncognitoModeChanged)
 		with(binding.searchView) {
 			queryHint = getString(R.string.search_on_s, source.title)
 			setOnQueryTextListener(this@SearchActivity)
@@ -72,6 +73,16 @@ class SearchActivity : BaseActivity<ActivitySearchBinding>(), SearchView.OnQuery
 
 	override fun onQueryTextChange(newText: String?): Boolean = false
 
+	private fun onIncognitoModeChanged(isIncognito: Boolean) {
+		var options = binding.searchView.imeOptions
+		options = if (isIncognito) {
+			options or EditorInfoCompat.IME_FLAG_NO_PERSONALIZED_LEARNING
+		} else {
+			options and EditorInfoCompat.IME_FLAG_NO_PERSONALIZED_LEARNING.inv()
+		}
+		binding.searchView.imeOptions = options
+	}
+
 	companion object {
 
 		private const val EXTRA_SOURCE = "source"

app/src/main/java/org/koitharu/kotatsu/search/ui/suggestion/SearchSuggestionViewModel.kt

@@ -3,17 +3,28 @@ package org.koitharu.kotatsu.search.ui.suggestion
 import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.viewModelScope
 import dagger.hilt.android.lifecycle.HiltViewModel
-import javax.inject.Inject
-import kotlinx.coroutines.*
-import kotlinx.coroutines.flow.*
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.async
+import kotlinx.coroutines.coroutineScope
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.combine
+import kotlinx.coroutines.flow.debounce
+import kotlinx.coroutines.flow.distinctUntilChanged
+import kotlinx.coroutines.flow.launchIn
+import kotlinx.coroutines.flow.mapLatest
+import kotlinx.coroutines.flow.onEach
+import kotlinx.coroutines.plus
 import org.koitharu.kotatsu.base.ui.BaseViewModel
 import org.koitharu.kotatsu.base.ui.widgets.ChipsView
 import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.core.prefs.observeAsFlow
+import org.koitharu.kotatsu.core.prefs.observeAsLiveData
 import org.koitharu.kotatsu.parsers.model.MangaSource
 import org.koitharu.kotatsu.parsers.model.MangaTag
 import org.koitharu.kotatsu.search.domain.MangaSearchRepository
 import org.koitharu.kotatsu.search.ui.suggestion.model.SearchSuggestionItem
+import javax.inject.Inject
 
 private const val DEBOUNCE_TIMEOUT = 500L
 private const val MAX_MANGA_ITEMS = 6
@@ -30,6 +41,12 @@ class SearchSuggestionViewModel @Inject constructor(
 	private val query = MutableStateFlow("")
 	private var suggestionJob: Job? = null
 
+	val isIncognitoModeEnabled = settings.observeAsLiveData(
+		context = viewModelScope.coroutineContext + Dispatchers.Default,
+		key = AppSettings.KEY_INCOGNITO_MODE,
+		valueProducer = { isIncognitoModeEnabled },
+	)
+
 	val suggestion = MutableLiveData<List<SearchSuggestionItem>>()
 
 	init {
@@ -41,7 +58,11 @@ class SearchSuggestionViewModel @Inject constructor(
 	}
 
 	fun saveQuery(query: String) {
-		repository.saveSearchQuery(query)
+		launchJob(Dispatchers.Default) {
+			if (!settings.isIncognitoModeEnabled) {
+				repository.saveSearchQuery(query)
+			}
+		}
 	}
 
 	fun clearSearchHistory() {