auto import from //depot/cupcake/@135843
diff --git a/core/java/android/widget/ZoomButton.java b/core/java/android/widget/ZoomButton.java
new file mode 100644
index 0000000..0df919d
--- /dev/null
+++ b/core/java/android/widget/ZoomButton.java
@@ -0,0 +1,112 @@
+/*
+ * Copyright (C) 2008 The Android Open Source 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 android.widget;
+
+import android.content.Context;
+import android.os.Handler;
+import android.util.AttributeSet;
+import android.view.GestureDetector;
+import android.view.HapticFeedbackConstants;
+import android.view.KeyEvent;
+import android.view.MotionEvent;
+import android.view.View;
+import android.view.GestureDetector.SimpleOnGestureListener;
+import android.view.View.OnLongClickListener;
+
+
+public class ZoomButton extends ImageButton implements OnLongClickListener {
+
+ private final Handler mHandler;
+ private final Runnable mRunnable = new Runnable() {
+ public void run() {
+ if ((mOnClickListener != null) && mIsInLongpress && isEnabled()) {
+ mOnClickListener.onClick(ZoomButton.this);
+ mHandler.postDelayed(this, mZoomSpeed);
+ }
+ }
+ };
+ private final GestureDetector mGestureDetector;
+
+ private long mZoomSpeed = 1000;
+ private boolean mIsInLongpress;
+
+ public ZoomButton(Context context) {
+ this(context, null);
+ }
+
+ public ZoomButton(Context context, AttributeSet attrs) {
+ this(context, attrs, 0);
+ }
+
+ public ZoomButton(Context context, AttributeSet attrs, int defStyle) {
+ super(context, attrs, defStyle);
+ mHandler = new Handler();
+ mGestureDetector = new GestureDetector(context, new SimpleOnGestureListener() {
+ @Override
+ public void onLongPress(MotionEvent e) {
+ performHapticFeedback(HapticFeedbackConstants.LONG_PRESS);
+ onLongClick(ZoomButton.this);
+ }
+ });
+ setOnLongClickListener(this);
+ }
+
+ @Override
+ public boolean onTouchEvent(MotionEvent event) {
+ mGestureDetector.onTouchEvent(event);
+ if ((event.getAction() == MotionEvent.ACTION_CANCEL)
+ || (event.getAction() == MotionEvent.ACTION_UP)) {
+ mIsInLongpress = false;
+ }
+ return super.onTouchEvent(event);
+ }
+
+ public void setZoomSpeed(long speed) {
+ mZoomSpeed = speed;
+ }
+
+ public boolean onLongClick(View v) {
+ mIsInLongpress = true;
+ mHandler.post(mRunnable);
+ return true;
+ }
+
+ @Override
+ public boolean onKeyUp(int keyCode, KeyEvent event) {
+ mIsInLongpress = false;
+ return super.onKeyUp(keyCode, event);
+ }
+
+ @Override
+ public void setEnabled(boolean enabled) {
+ if (!enabled) {
+
+ /* If we're being disabled reset the state back to unpressed
+ * as disabled views don't get events and therefore we won't
+ * get the up event to reset the state.
+ */
+ setPressed(false);
+ }
+ super.setEnabled(enabled);
+ }
+
+ @Override
+ public boolean dispatchUnhandledMove(View focused, int direction) {
+ clearFocus();
+ return super.dispatchUnhandledMove(focused, direction);
+ }
+}