fix(android): reconnect Flutter texture after TV standby

2026-07-11 01:01:08 +02:00
parent 03651d6c73
commit 02a032d287
3 changed files with 193 additions and 35 deletions
@@ -0,0 +1,102 @@
+package com.edde746.plezy
+
+import android.graphics.SurfaceTexture
+import android.os.Looper
+import android.view.TextureView
+import java.time.Duration
+import org.junit.After
+import org.junit.Assert.assertEquals
+import org.junit.Before
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.robolectric.RobolectricTestRunner
+import org.robolectric.Shadows.shadowOf
+import org.robolectric.annotation.LooperMode
+
+@RunWith(RobolectricTestRunner::class)
+@LooperMode(LooperMode.Mode.PAUSED)
+class DeferredSurfaceTextureListenerTest {
+
+  private lateinit var surface: SurfaceTexture
+  private lateinit var delegate: RecordingListener
+  private lateinit var listener: DeferredSurfaceTextureListener
+  private var currentSurface: SurfaceTexture? = null
+
+  @Before
+  fun setUp() {
+    surface = SurfaceTexture(0)
+    currentSurface = surface
+    delegate = RecordingListener()
+    listener = DeferredSurfaceTextureListener(delegate) { candidate -> candidate === currentSurface }
+  }
+
+  @After
+  fun tearDown() {
+    surface.release()
+  }
+
+  @Test
+  fun forwardsRepeatedSameSizeCallbacks() {
+    listener.onSurfaceTextureSizeChanged(surface, 1920, 1080)
+    idlePastResizeDelay()
+    listener.onSurfaceTextureSizeChanged(surface, 1920, 1080)
+    idlePastResizeDelay()
+
+    assertEquals(listOf(1920 to 1080, 1920 to 1080), delegate.sizes)
+  }
+
+  @Test
+  fun coalescesPendingCallbacksToLatestSize() {
+    listener.onSurfaceTextureSizeChanged(surface, 1280, 720)
+    listener.onSurfaceTextureSizeChanged(surface, 1920, 1080)
+    idlePastResizeDelay()
+
+    assertEquals(listOf(1920 to 1080), delegate.sizes)
+  }
+
+  @Test
+  fun ignoresCallbackForObsoleteSurface() {
+    val replacement = SurfaceTexture(0)
+    try {
+      listener.onSurfaceTextureSizeChanged(surface, 1920, 1080)
+      currentSurface = replacement
+      idlePastResizeDelay()
+
+      assertEquals(emptyList<Pair<Int, Int>>(), delegate.sizes)
+    } finally {
+      replacement.release()
+    }
+  }
+
+  @Test
+  fun destroyingSurfaceCancelsPendingCallback() {
+    listener.onSurfaceTextureSizeChanged(surface, 1920, 1080)
+    listener.onSurfaceTextureDestroyed(surface)
+    idlePastResizeDelay()
+
+    assertEquals(emptyList<Pair<Int, Int>>(), delegate.sizes)
+    assertEquals(1, delegate.destroyedCount)
+  }
+
+  private fun idlePastResizeDelay() {
+    shadowOf(Looper.getMainLooper()).idleFor(Duration.ofMillis(101))
+  }
+
+  private class RecordingListener : TextureView.SurfaceTextureListener {
+    val sizes = mutableListOf<Pair<Int, Int>>()
+    var destroyedCount = 0
+
+    override fun onSurfaceTextureAvailable(surface: SurfaceTexture, width: Int, height: Int) = Unit
+
+    override fun onSurfaceTextureSizeChanged(surface: SurfaceTexture, width: Int, height: Int) {
+      sizes += width to height
+    }
+
+    override fun onSurfaceTextureUpdated(surface: SurfaceTexture) = Unit
+
+    override fun onSurfaceTextureDestroyed(surface: SurfaceTexture): Boolean {
+      destroyedCount++
+      return true
+    }
+  }
+}