Handle search action

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

@@ -141,7 +141,7 @@ class MainActivity : BaseActivity<ActivityMainBinding>(), AppBarOwner, BottomNav
 		searchSuggestionViewModel.isIncognitoModeEnabled.observe(this, this::onIncognitoModeChanged)
 		viewBinding.bottomNav?.addOnLayoutChangeListener(this)
 		viewBinding.searchView.addTransitionListener(this)
-		initSearchSuggestions()
+		initSearch()
 	}
 
 	override fun onRestoreInstanceState(savedInstanceState: Bundle) {
@@ -351,7 +351,7 @@ class MainActivity : BaseActivity<ActivityMainBinding>(), AppBarOwner, BottomNav
 		viewBinding.recyclerViewSearch.setPadding(barsInsets.left, 0, barsInsets.right, barsInsets.bottom)
 	}
 
-	private fun initSearchSuggestions() {
+	private fun initSearch() {
 		val listener = SearchSuggestionListenerImpl(router, viewBinding.searchView, searchSuggestionViewModel)
 		val adapter = SearchSuggestionAdapter(listener)
 		viewBinding.searchView.toolbar.addMenuProvider(
@@ -359,6 +359,7 @@ class MainActivity : BaseActivity<ActivityMainBinding>(), AppBarOwner, BottomNav
 		)
 		viewBinding.searchView.editText.addTextChangedListener(listener)
 		viewBinding.recyclerViewSearch.adapter = adapter
+		viewBinding.searchView.editText.setOnEditorActionListener(listener)
 
 		viewBinding.searchView.observeState()
 			.map { it >= SearchView.TransitionState.SHOWING }

app/src/main/kotlin/org/koitharu/kotatsu/search/ui/suggestion/SearchSuggestionListener.kt

@@ -1,12 +1,13 @@
 package org.koitharu.kotatsu.search.ui.suggestion
 
 import android.text.TextWatcher
+import android.widget.TextView
 import org.koitharu.kotatsu.parsers.model.Manga
 import org.koitharu.kotatsu.parsers.model.MangaSource
 import org.koitharu.kotatsu.parsers.model.MangaTag
 import org.koitharu.kotatsu.search.domain.SearchKind
 
-interface SearchSuggestionListener : TextWatcher {
+interface SearchSuggestionListener : TextWatcher, TextView.OnEditorActionListener {
 
 	fun onMangaClick(manga: Manga)
 

app/src/main/kotlin/org/koitharu/kotatsu/search/ui/suggestion/SearchSuggestionListenerImpl.kt

@@ -1,6 +1,8 @@
 package org.koitharu.kotatsu.search.ui.suggestion
 
 import android.text.Editable
+import android.view.KeyEvent
+import android.widget.TextView
 import androidx.core.net.toUri
 import com.google.android.material.search.SearchView
 import org.koitharu.kotatsu.core.nav.AppRouter
@@ -30,6 +32,7 @@ class SearchSuggestionListenerImpl(
 					viewModel.saveQuery(query)
 				}
 			}
+			searchView.hide()
 		} else {
 			searchView.setText(query)
 		}
@@ -54,4 +57,17 @@ class SearchSuggestionListenerImpl(
 	override fun afterTextChanged(s: Editable?) {
 		viewModel.onQueryChanged(s?.toString().orEmpty())
 	}
+
+	override fun onEditorAction(
+		v: TextView?,
+		actionId: Int,
+		event: KeyEvent?
+	): Boolean {
+		val query = v?.text?.toString()
+		if (query.isNullOrEmpty()) {
+			return false
+		}
+		onQueryClick(query, SearchKind.SIMPLE, true)
+		return true
+	}
 }

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

@@ -30,7 +30,7 @@ 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 DEBOUNCE_TIMEOUT = 300L
 private const val MAX_MANGA_ITEMS = 12
 private const val MAX_QUERY_ITEMS = 16
 private const val MAX_HINTS_ITEMS = 3