--- /dev/null
+/*
+ * Copyright (C) 2012 Tobias Brunner
+ * Copyright (C) 2012 Giuliano Grassi
+ * Copyright (C) 2012 Ralf Sager
+ * Hochschule fuer Technik Rapperswil
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ */
+
+package org.strongswan.android.ui;
+
+import android.content.Context;
+import android.util.AttributeSet;
+import android.view.MotionEvent;
+import android.view.View;
+import android.widget.ScrollView;
+
+public class LogScrollView extends ScrollView
+{
+ private boolean mAutoScroll = true;
+
+ public LogScrollView(Context context)
+ {
+ super(context);
+ }
+
+ public LogScrollView(Context context, AttributeSet attrs)
+ {
+ super(context, attrs);
+ }
+
+ public LogScrollView(Context context, AttributeSet attrs, int defStyle)
+ {
+ super(context, attrs, defStyle);
+ }
+
+ @Override
+ public boolean onTouchEvent(MotionEvent ev)
+ {
+ /* disable auto-scrolling when the user starts scrolling around */
+ if (ev.getActionMasked() == MotionEvent.ACTION_DOWN)
+ {
+ mAutoScroll = false;
+ }
+ return super.onTouchEvent(ev);
+ }
+
+ /**
+ * Call this to move newly added content into view by scrolling to the bottom.
+ * Nothing happens if auto-scrolling is disabled.
+ */
+ public void autoScroll()
+ {
+ if (mAutoScroll)
+ {
+ fullScroll(View.FOCUS_DOWN);
+ }
+ }
+
+ @Override
+ protected void onScrollChanged(int l, int t, int oldl, int oldt)
+ {
+ super.onScrollChanged(l, t, oldl, oldt);
+ /* if the user scrolls to the bottom we enable auto-scrolling again */
+ if (t == getChildAt(getChildCount() - 1).getHeight() - getHeight())
+ {
+ mAutoScroll = true;
+ }
+ }
+}