1 files changed, 86 insertions, 0 deletions
diff --git a/app/src/main/java/de/danoeh/antennapod/view/LockableBottomSheetBehavior.java b/app/src/main/java/de/danoeh/antennapod/view/LockableBottomSheetBehavior.java
new file mode 100644
index 000000000..8e8d98fc9
--- /dev/null
+++ b/app/src/main/java/de/danoeh/antennapod/view/LockableBottomSheetBehavior.java
@@ -0,0 +1,86 @@
+package de.danoeh.antennapod.view;
+
+import android.content.Context;
+import android.util.AttributeSet;
+import android.view.MotionEvent;
+import android.view.View;
+import androidx.coordinatorlayout.widget.CoordinatorLayout;
+import com.google.android.material.bottomsheet.ViewPagerBottomSheetBehavior;
+
+/**
+ * Based on https://stackoverflow.com/a/40798214
+ */
+public class LockableBottomSheetBehavior<V extends View> extends ViewPagerBottomSheetBehavior<V> {
+    private boolean isLocked = false;
+
+    public LockableBottomSheetBehavior() {}
+
+    public LockableBottomSheetBehavior(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    public void setLocked(boolean locked) {
+        isLocked = locked;
+    }
+
+    @Override
+    public boolean onInterceptTouchEvent(CoordinatorLayout parent, V child, MotionEvent event) {
+        boolean handled = false;
+
+        if (!isLocked) {
+            handled = super.onInterceptTouchEvent(parent, child, event);
+        }
+
+        return handled;
+    }
+
+    @Override
+    public boolean onTouchEvent(CoordinatorLayout parent, V child, MotionEvent event) {
+        boolean handled = false;
+
+        if (!isLocked) {
+            handled = super.onTouchEvent(parent, child, event);
+        }
+
+        return handled;
+    }
+
+    @Override
+    public boolean onStartNestedScroll(CoordinatorLayout coordinatorLayout, V child, View directTargetChild,
+                                       View target, int nestedScrollAxes) {
+        boolean handled = false;
+
+        if (!isLocked) {
+            handled = super.onStartNestedScroll(coordinatorLayout, child, directTargetChild, target, nestedScrollAxes);
+        }
+
+        return handled;
+    }
+
+    @Override
+    public void onNestedPreScroll(CoordinatorLayout coordinatorLayout, V child, View target,
+                                  int dx, int dy, int[] consumed) {
+        if (!isLocked) {
+            super.onNestedPreScroll(coordinatorLayout, child, target, dx, dy, consumed);
+        }
+    }
+
+    @Override
+    public void onStopNestedScroll(CoordinatorLayout coordinatorLayout, V child, View target) {
+        if (!isLocked) {
+            super.onStopNestedScroll(coordinatorLayout, child, target);
+        }
+    }
+
+    @Override
+    public boolean onNestedPreFling(CoordinatorLayout coordinatorLayout, V child, View target,
+                                    float velocityX, float velocityY) {
+        boolean handled = false;
+
+        if (!isLocked) {
+            handled = super.onNestedPreFling(coordinatorLayout, child, target, velocityX, velocityY);
+        }
+
+        return handled;
+    }
+}