FloatingActionButton: import cleaned up getbase code

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

1 files changed, 78 insertions, 0 deletions

diff --git a/app/src/main/java/com/wireguard/android/widget/fab/TouchDelegateGroup.java b/app/src/main/java/com/wireguard/android/widget/fab/TouchDelegateGroup.java
new file mode 100644
index 00000000..9aa221ed
--- /dev/null
+++ b/app/src/main/java/com/wireguard/android/widget/fab/TouchDelegateGroup.java
@@ -0,0 +1,78 @@
+/*
+ * Copyright © 2014 Jerzy Chalupski
+ * Copyright © 2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+package com.wireguard.android.widget.fab;
+
+import android.graphics.Rect;
+import android.support.annotation.NonNull;
+import android.view.MotionEvent;
+import android.view.TouchDelegate;
+import android.view.View;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class TouchDelegateGroup extends TouchDelegate {
+    private static final Rect USELESS_HACKY_RECT = new Rect();
+    private final List<TouchDelegate> mTouchDelegates = new ArrayList<>();
+    private TouchDelegate mCurrentTouchDelegate;
+    private boolean mEnabled;
+
+    public TouchDelegateGroup(final View uselessHackyView) {
+        super(USELESS_HACKY_RECT, uselessHackyView);
+    }
+
+    public void addTouchDelegate(@NonNull final TouchDelegate touchDelegate) {
+        mTouchDelegates.add(touchDelegate);
+    }
+
+    public void removeTouchDelegate(final TouchDelegate touchDelegate) {
+        mTouchDelegates.remove(touchDelegate);
+        if (mCurrentTouchDelegate == touchDelegate) {
+            mCurrentTouchDelegate = null;
+        }
+    }
+
+    public void clearTouchDelegates() {
+        mTouchDelegates.clear();
+        mCurrentTouchDelegate = null;
+    }
+
+    @Override
+    public boolean onTouchEvent(@NonNull final MotionEvent event) {
+        if (!mEnabled) return false;
+
+        TouchDelegate delegate = null;
+
+        switch (event.getAction()) {
+            case MotionEvent.ACTION_DOWN:
+                for (int i = 0; i < mTouchDelegates.size(); i++) {
+                    final TouchDelegate touchDelegate = mTouchDelegates.get(i);
+                    if (touchDelegate.onTouchEvent(event)) {
+                        mCurrentTouchDelegate = touchDelegate;
+                        return true;
+                    }
+                }
+                break;
+
+            case MotionEvent.ACTION_MOVE:
+                delegate = mCurrentTouchDelegate;
+                break;
+
+            case MotionEvent.ACTION_CANCEL:
+            case MotionEvent.ACTION_UP:
+                delegate = mCurrentTouchDelegate;
+                mCurrentTouchDelegate = null;
+                break;
+        }
+
+        return delegate != null && delegate.onTouchEvent(event);
+    }
+
+    public void setEnabled(final boolean enabled) {
+        mEnabled = enabled;
+    }
+}