Add voice search

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

@@ -14,4 +14,6 @@ interface SearchSuggestionListener {
 	fun onClearSearchHistory()
 
 	fun onTagClick(tag: MangaTag)
+
+	fun onVoiceSearchClick()
 }

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

@@ -2,15 +2,20 @@ package org.koitharu.kotatsu.search.ui.widget
 
 import android.annotation.SuppressLint
 import android.content.Context
+import android.os.Parcelable
 import android.util.AttributeSet
 import android.view.KeyEvent
 import android.view.MotionEvent
+import android.view.SoundEffectConstants
+import android.view.accessibility.AccessibilityEvent
 import android.view.inputmethod.EditorInfo
 import androidx.annotation.AttrRes
 import androidx.appcompat.widget.AppCompatEditText
 import androidx.core.content.ContextCompat
-import com.google.android.material.R
+import com.google.android.material.R as materialR
+import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.search.ui.suggestion.SearchSuggestionListener
+import org.koitharu.kotatsu.utils.ext.drawableEnd
 import org.koitharu.kotatsu.utils.ext.drawableStart
 
 private const val DRAWABLE_END = 2
@@ -18,11 +23,19 @@ private const val DRAWABLE_END = 2
 class SearchEditText @JvmOverloads constructor(
 	context: Context,
 	attrs: AttributeSet? = null,
-	@AttrRes defStyleAttr: Int = R.attr.editTextStyle,
+	@AttrRes defStyleAttr: Int = materialR.attr.editTextStyle,
 ) : AppCompatEditText(context, attrs, defStyleAttr) {
 
 	var searchSuggestionListener: SearchSuggestionListener? = null
-	private val clearIcon = ContextCompat.getDrawable(context, R.drawable.abc_ic_clear_material)
+	private val clearIcon = ContextCompat.getDrawable(context, materialR.drawable.abc_ic_clear_material)
+	private val voiceIcon = ContextCompat.getDrawable(context, R.drawable.ic_voice_input)
+	private var isEmpty = text.isNullOrEmpty()
+
+	var isVoiceSearchEnabled: Boolean = false
+		set(value) {
+			field = value
+			updateActionIcon()
+		}
 
 	var query: String
 		get() = text?.trim()?.toString().orEmpty()
@@ -57,15 +70,19 @@ class SearchEditText @JvmOverloads constructor(
 		lengthAfter: Int,
 	) {
 		super.onTextChanged(text, start, lengthBefore, lengthAfter)
-		setCompoundDrawablesRelativeWithIntrinsicBounds(
-			drawableStart,
-			null,
-			if (text.isNullOrEmpty()) null else clearIcon,
-			null,
-		)
+		val empty = text.isNullOrEmpty()
+		if (isEmpty != empty) {
+			isEmpty = empty
+			updateActionIcon()
+		}
 		searchSuggestionListener?.onQueryChanged(query)
 	}
 
+	override fun onRestoreInstanceState(state: Parcelable?) {
+		super.onRestoreInstanceState(state)
+		updateActionIcon()
+	}
+
 	@SuppressLint("ClickableViewAccessibility")
 	override fun onTouchEvent(event: MotionEvent): Boolean {
 		if (event.action == MotionEvent.ACTION_UP) {
@@ -76,7 +93,9 @@ class SearchEditText @JvmOverloads constructor(
 				event.x.toInt() in (width - drawable.bounds.width() - paddingRight)..(width - paddingRight)
 			}
 			if (isOnDrawable) {
-				text?.clear()
+				sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_CLICKED)
+				playSoundEffect(SoundEffectConstants.CLICK)
+				onActionIconClick()
 				return true
 			}
 		}
@@ -87,4 +106,22 @@ class SearchEditText @JvmOverloads constructor(
 		super.clearFocus()
 		text?.clear()
 	}
+
+	private fun onActionIconClick() {
+		when {
+			!text.isNullOrEmpty() -> text?.clear()
+			isVoiceSearchEnabled -> searchSuggestionListener?.onVoiceSearchClick()
+		}
+	}
+
+	private fun updateActionIcon() {
+		val icon = when {
+			!text.isNullOrEmpty() -> clearIcon
+			isVoiceSearchEnabled -> voiceIcon
+			else -> null
+		}
+		if (icon !== drawableEnd) {
+			setCompoundDrawablesRelativeWithIntrinsicBounds(drawableStart, null, icon, null)
+		}
+	}
 }