| /* |
| * Copyright (C) 2013 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 com.android.camera.ui; |
| |
| import android.content.Context; |
| import android.util.AttributeSet; |
| import android.view.MotionEvent; |
| import android.view.View; |
| import android.widget.FrameLayout; |
| |
| import com.android.camera.debug.Log; |
| |
| public class MainActivityLayout extends FrameLayout { |
| |
| private MotionEvent mDown; |
| private final Log.Tag TAG = new Log.Tag("MainActivityLayout"); |
| private boolean mRequestToInterceptTouchEvents = false; |
| private View mTouchReceiver = null; |
| |
| public MainActivityLayout(Context context, AttributeSet attrs) { |
| super(context, attrs); |
| } |
| |
| @Override |
| public boolean onInterceptTouchEvent(MotionEvent ev) { |
| if (ev.getActionMasked() == MotionEvent.ACTION_DOWN) { |
| mDown = MotionEvent.obtain(ev); |
| mTouchReceiver = null; |
| mRequestToInterceptTouchEvents = false; |
| return false; |
| } else if (mRequestToInterceptTouchEvents) { |
| mRequestToInterceptTouchEvents = false; |
| onTouchEvent(mDown); |
| return true; |
| } else if (ev.getActionMasked() == MotionEvent.ACTION_POINTER_DOWN) { |
| // Do not intercept touch once child is in zoom mode |
| return false; |
| } |
| return false; |
| } |
| |
| @Override |
| public boolean onTouchEvent(MotionEvent ev) { |
| if (mTouchReceiver != null) { |
| mTouchReceiver.setVisibility(VISIBLE); |
| return mTouchReceiver.dispatchTouchEvent(ev); |
| } |
| return false; |
| } |
| |
| public void redirectTouchEventsTo(View touchReceiver) { |
| if (touchReceiver == null) { |
| Log.e(TAG, "Cannot redirect touch to a null receiver."); |
| return; |
| } |
| mTouchReceiver = touchReceiver; |
| mRequestToInterceptTouchEvents = true; |
| } |
| } |