1 files changed, 69 insertions, 0 deletions
diff --git a/src/org/cyanogenmod/theme/widget/LockableScrollView.java b/src/org/cyanogenmod/theme/widget/LockableScrollView.java
new file mode 100644
index 0000000..b4c9ffc
--- /dev/null
+++ b/src/org/cyanogenmod/theme/widget/LockableScrollView.java
@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2016 Cyanogen, Inc.
+ * Copyright (C) 2016 The CyanogenMod 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 org.cyanogenmod.theme.widget;
+
+import android.content.Context;
+import android.util.AttributeSet;
+import android.view.MotionEvent;
+import android.widget.ScrollView;
+
+public class LockableScrollView extends ScrollView {
+    private boolean mScrollingEnabled = true;
+
+    public LockableScrollView(Context context) {
+        this(context, null);
+    }
+
+    public LockableScrollView(Context context, AttributeSet attrs) {
+        this(context, attrs, 0);
+    }
+
+    public LockableScrollView(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs, defStyle);
+    }
+
+    public void setScrollingEnabled(boolean enabled) {
+        mScrollingEnabled = enabled;
+    }
+
+    @Override
+    public boolean onInterceptTouchEvent(MotionEvent ev) {
+        return mScrollingEnabled && super.onInterceptTouchEvent(ev);
+    }
+
+    @Override
+    public boolean onTouchEvent(MotionEvent ev) {
+        switch (ev.getAction()) {
+            case MotionEvent.ACTION_DOWN:
+                return mScrollingEnabled && super.onTouchEvent(ev);
+            default:
+                return super.onTouchEvent(ev);
+        }
+    }
+
+    @Override
+    public void setOverScrollMode(int mode) {
+        // Some themes can cause theme chooser to crash when creating the EdgeEffects for
+        // the scroll view.  If an exception occurs we fallback to no overscroll
+        try {
+            super.setOverScrollMode(mode);
+        } catch (Exception e) {
+            super.setOverScrollMode(OVER_SCROLL_NEVER);
+        }
+    }
+}