Fix poor handling of single tap touches.

app/src/main/java/org/thoughtcrime/securesms/stories/viewer/page/StoryViewerPageFragment.kt

@@ -17,7 +17,6 @@ import android.view.GestureDetector
 import android.view.MotionEvent
 import android.view.ScaleGestureDetector
 import android.view.View
-import android.view.ViewConfiguration
 import android.view.animation.Interpolator
 import android.widget.FrameLayout
 import android.widget.TextView
@@ -227,6 +226,8 @@ class StoryViewerPageFragment :
       )
     )
 
+    gestureDetector.setOnDoubleTapListener(null)
+
     val scaleListener = StoryScaleListener(
       viewModel, sharedViewModel, card
     )
@@ -248,10 +249,6 @@ class StoryViewerPageFragment :
       if (event.actionMasked == MotionEvent.ACTION_DOWN) {
         viewModel.setIsUserTouching(true)
       } else if (event.actionMasked == MotionEvent.ACTION_UP || event.actionMasked == MotionEvent.ACTION_CANCEL) {
-        if (event.actionMasked == MotionEvent.ACTION_UP) {
-          singleTapHandler.onActionUp(event)
-        }
-
         viewModel.setIsUserTouching(false)
 
         val canCloseFromHorizontalSlide = requireView().translationX > DimensionUnit.DP.toPixels(56f)
@@ -1074,21 +1071,7 @@ class StoryViewerPageFragment :
       private const val BOUNDARY_PREV = 1f - BOUNDARY_NEXT
     }
 
-    private var tapStart: Long = 0L
-
-    fun onGestureHappened() {
-      tapStart = 0L
-    }
-
-    fun onDown() {
-      tapStart = System.currentTimeMillis()
-    }
-
     fun onActionUp(e: MotionEvent) {
-      if (System.currentTimeMillis() - tapStart > ViewConfiguration.getTapTimeout()) {
-        return
-      }
-
       if (e.x < container.measuredWidth * getLeftBoundary()) {
         performLeftAction()
       } else if (e.x > container.measuredWidth - (container.measuredWidth * getRightBoundary())) {
@@ -1213,7 +1196,11 @@ class StoryViewerPageFragment :
     private val maxSlide = DimensionUnit.DP.toPixels(56f * 2)
 
     override fun onDown(e: MotionEvent): Boolean {
-      singleTapHandler.onDown()
+      return true
+    }
+
+    override fun onSingleTapUp(e: MotionEvent): Boolean {
+      singleTapHandler.onActionUp(e)
       return true
     }
 
@@ -1252,7 +1239,6 @@ class StoryViewerPageFragment :
 
       onContentTranslation(viewToTranslate.translationX, viewToTranslate.translationY)
 
-      singleTapHandler.onGestureHappened()
       return true
     }
 
@@ -1274,7 +1260,6 @@ class StoryViewerPageFragment :
         onReplyToPost()
       }
 
-      singleTapHandler.onGestureHappened()
       return true
     }
   }

app/src/main/java/org/thoughtcrime/securesms/stories/viewer/post/StoryImageLoader.kt

@@ -73,6 +73,9 @@ class StoryImageLoader(
   fun clear() {
     GlideApp.with(postImage).clear(postImage)
     GlideApp.with(blurImage).clear(blurImage)
+
+    postImage.setImageDrawable(null)
+    blurImage.setImageDrawable(null)
   }
 
   private fun loadViaCache(cacheValue: StoryCache.StoryCacheValue) {

app/src/main/java/org/thoughtcrime/securesms/stories/viewer/post/StoryPostFragment.kt

@@ -31,6 +31,7 @@ class StoryPostFragment : Fragment(R.layout.stories_post_fragment) {
   })
 
   private val binding by ViewBinderDelegate(StoriesPostFragmentBinding::bind) {
+    it.video.cleanup()
     presentNone()
   }
 

app/src/main/java/org/thoughtcrime/securesms/stories/viewer/post/StoryVideoLoader.kt

@@ -23,11 +23,13 @@ class StoryVideoLoader(
   fun load() {
     fragment.viewLifecycleOwner.lifecycle.addObserver(this)
     videoPlayer.setVideoSource(VideoSlide(fragment.requireContext(), videoPost.videoUri, videoPost.size, false), true, TAG, videoPost.clipStart.inWholeMilliseconds, videoPost.clipEnd.inWholeMilliseconds)
+    videoPlayer.hideControls()
+    videoPlayer.setKeepContentOnPlayerReset(false)
   }
 
   fun clear() {
     fragment.viewLifecycleOwner.lifecycle.removeObserver(this)
-    videoPlayer.cleanup()
+    videoPlayer.stop()
   }
 
   override fun onResume(lifecycleOwner: LifecycleOwner) {

app/src/main/java/org/thoughtcrime/securesms/video/VideoPlayer.java

@@ -17,6 +17,7 @@
 package org.thoughtcrime.securesms.video;
 
 import android.content.Context;
+import android.content.res.TypedArray;
 import android.util.AttributeSet;
 import android.view.View;
 import android.view.Window;
@@ -25,6 +26,8 @@ import android.widget.FrameLayout;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
+import androidx.core.content.res.TypedArrayKt;
+import androidx.core.content.res.TypedArrayUtils;
 
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.ExoPlayer;
@@ -35,7 +38,6 @@ import com.google.android.exoplayer2.Tracks;
 import com.google.android.exoplayer2.source.ClippingMediaSource;
 import com.google.android.exoplayer2.source.DefaultMediaSourceFactory;
 import com.google.android.exoplayer2.source.MediaSource;
-import com.google.android.exoplayer2.source.TrackGroupArray;
 import com.google.android.exoplayer2.ui.AspectRatioFrameLayout;
 import com.google.android.exoplayer2.ui.PlayerControlView;
 import com.google.android.exoplayer2.ui.PlayerView;
@@ -44,7 +46,6 @@ import org.signal.core.util.logging.Log;
 import org.thoughtcrime.securesms.R;
 import org.thoughtcrime.securesms.dependencies.ApplicationDependencies;
 import org.thoughtcrime.securesms.mms.VideoSlide;
-import org.thoughtcrime.securesms.util.MediaUtil;
 
 import java.util.Objects;
 import java.util.concurrent.TimeUnit;
@@ -80,7 +81,11 @@ public class VideoPlayer extends FrameLayout {
   public VideoPlayer(Context context, AttributeSet attrs, int defStyleAttr) {
     super(context, attrs, defStyleAttr);
 
-    inflate(context, R.layout.video_player, this);
+    TypedArray typedArray       = context.obtainStyledAttributes(attrs, R.styleable.VideoPlayer);
+    int        videPlayerLayout = typedArray.getResourceId(R.styleable.VideoPlayer_playerLayoutId, R.layout.video_player);
+
+    typedArray.recycle();
+    inflate(context, videPlayerLayout, this);
 
     this.mediaSourceFactory = new DefaultMediaSourceFactory(context);
 
@@ -202,6 +207,12 @@ public class VideoPlayer extends FrameLayout {
     }
   }
 
+  public void setKeepContentOnPlayerReset(boolean keepContentOnPlayerReset) {
+    if (this.exoView != null) {
+      this.exoView.setKeepContentOnPlayerReset(keepContentOnPlayerReset);
+    }
+  }
+
   @Override
   public void setOnClickListener(@Nullable OnClickListener l) {
     if (this.exoView != null) {
@@ -215,11 +226,15 @@ public class VideoPlayer extends FrameLayout {
     return this.exoControls;
   }
 
-  public void cleanup() {
+  public void stop() {
     if (this.exoPlayer != null) {
       exoPlayer.stop();
       exoPlayer.clearMediaItems();
+    }
+  }
 
+  public void cleanup() {
+    if (this.exoPlayer != null) {
       exoView.setPlayer(null);
       exoControls.setPlayer(null);
 
@@ -319,9 +334,9 @@ public class VideoPlayer extends FrameLayout {
 
   private @NonNull MediaItem.ClippingConfiguration getClippingConfiguration(long startMs, long endMs) {
     return startMs != endMs ? new MediaItem.ClippingConfiguration.Builder()
-                                                                 .setStartPositionMs(startMs)
-                                                                 .setEndPositionMs(endMs)
-                                                                 .build()
+        .setStartPositionMs(startMs)
+        .setEndPositionMs(endMs)
+        .build()
                             : MediaItem.ClippingConfiguration.UNSET;
   }