Add CameraXFlashToggleView and selfie flash.

res/drawable/camerax_flash_toggle.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<selector xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto">
+    <item app:state_flash_auto="true" android:drawable="@drawable/flash_auto_32" />
+    <item app:state_flash_off="true" android:drawable="@drawable/flash_off_32" />
+    <item app:state_flash_on="true" android:drawable="@drawable/flash_on_32" />
+</selector>

res/layout/camera_controls_landscape.xml

@@ -17,6 +17,16 @@
         app:layout_constraintTop_toTopOf="parent"
         app:layout_constraintBottom_toBottomOf="parent"/>
 
+    <org.thoughtcrime.securesms.mediasend.camerax.CameraXFlashToggleView
+        android:id="@+id/camera_flash_button"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="16dp"
+        android:layout_marginTop="14dp"
+        android:src="@drawable/camerax_flash_toggle"
+        app:layout_constraintStart_toEndOf="@+id/camera_flip_button"
+        app:layout_constraintTop_toTopOf="parent" />
+
     <ImageButton
         android:id="@+id/camera_flip_button"
         android:layout_width="wrap_content"
@@ -60,5 +70,16 @@
         app:layout_constraintEnd_toEndOf="@id/camera_capture_button"
         tools:visibility="visible" />
 
+    <View
+        android:id="@+id/camera_selfie_flash"
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        android:alpha="0"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        android:background="@color/white" />
+
 </androidx.constraintlayout.widget.ConstraintLayout>
 

res/layout/camera_controls_portrait.xml

@@ -17,6 +17,16 @@
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent" />
 
+    <org.thoughtcrime.securesms.mediasend.camerax.CameraXFlashToggleView
+        android:id="@+id/camera_flash_button"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="14dp"
+        android:layout_marginEnd="16dp"
+        android:src="@drawable/camerax_flash_toggle"
+        app:layout_constraintEnd_toStartOf="@+id/camera_flip_button"
+        app:layout_constraintTop_toTopOf="parent" />
+
     <ImageButton
         android:id="@+id/camera_flip_button"
         android:layout_width="wrap_content"
@@ -61,5 +71,16 @@
         app:layout_constraintEnd_toEndOf="parent"
         tools:visibility="visible" />
 
+    <View
+        android:id="@+id/camera_selfie_flash"
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        android:alpha="0"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        android:background="@color/white" />
+
 </androidx.constraintlayout.widget.ConstraintLayout>
 

res/values/attrs.xml

@@ -362,4 +362,10 @@
             <enum name="top" value="1" />
         </attr>
     </declare-styleable>
+
+    <declare-styleable name="CameraXFlashState">
+        <attr name="state_flash_auto" format="boolean" />
+        <attr name="state_flash_off" format="boolean" />
+        <attr name="state_flash_on" format="boolean" />
+    </declare-styleable>
 </resources>