1 files changed, 83 insertions, 0 deletions
diff --git a/camera-viewfinder-compose/src/main/java/com/google/jetpackcamera/viewfinder/surface/Surface.kt b/camera-viewfinder-compose/src/main/java/com/google/jetpackcamera/viewfinder/surface/Surface.kt
new file mode 100644
index 0000000..b614ea1
--- /dev/null
+++ b/camera-viewfinder-compose/src/main/java/com/google/jetpackcamera/viewfinder/surface/Surface.kt
@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.jetpackcamera.viewfinder.surface
+
+import android.util.Log
+import android.view.SurfaceHolder
+import android.view.SurfaceView
+import android.view.ViewGroup
+import android.widget.LinearLayout
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.viewinterop.AndroidView
+
+private const val TAG = "Surface"
+
+@Composable
+fun Surface(onSurfaceHolderEvent: (SurfaceHolderEvent) -> Unit = { _ -> }) {
+    Log.d(TAG, "Surface")
+
+    AndroidView(factory = { context ->
+        SurfaceView(context).apply {
+            layoutParams =
+                LinearLayout.LayoutParams(
+                    ViewGroup.LayoutParams.MATCH_PARENT,
+                    ViewGroup.LayoutParams.MATCH_PARENT
+                )
+            holder.addCallback(
+                object : SurfaceHolder.Callback {
+                    override fun surfaceCreated(holder: SurfaceHolder) {
+                        onSurfaceHolderEvent(SurfaceHolderEvent.SurfaceCreated(holder))
+                    }
+
+                    override fun surfaceChanged(
+                        holder: SurfaceHolder,
+                        format: Int,
+                        width: Int,
+                        height: Int
+                    ) {
+                        onSurfaceHolderEvent(
+                            SurfaceHolderEvent.SurfaceChanged(
+                                holder,
+                                width,
+                                height
+                            )
+                        )
+                    }
+
+                    override fun surfaceDestroyed(holder: SurfaceHolder) {
+                        onSurfaceHolderEvent(SurfaceHolderEvent.SurfaceDestroyed(holder))
+                    }
+                }
+            )
+        }
+    })
+}
+
+sealed interface SurfaceHolderEvent {
+    data class SurfaceCreated(
+        val holder: SurfaceHolder
+    ) : SurfaceHolderEvent
+
+    data class SurfaceChanged(
+        val holder: SurfaceHolder,
+        val width: Int,
+        val height: Int
+    ) : SurfaceHolderEvent
+
+    data class SurfaceDestroyed(
+        val holder: SurfaceHolder
+    ) : SurfaceHolderEvent
+}