1 /* 2 * Copyright (C) 2012 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.launcher3; 18 19 import android.view.View; 20 21 public class CheckLongPressHelper { 22 private View mView; 23 private boolean mHasPerformedLongPress; 24 private CheckForLongPress mPendingCheckForLongPress; 25 26 class CheckForLongPress implements Runnable { 27 public void run() { 28 if ((mView.getParent() != null) && mView.hasWindowFocus() 29 && !mHasPerformedLongPress) { 30 if (mView.performLongClick()) { 31 mView.setPressed(false); 32 mHasPerformedLongPress = true; 33 } 34 } 35 } 36 } 37 38 public CheckLongPressHelper(View v) { 39 mView = v; 40 } 41 42 public void postCheckForLongPress() { 43 mHasPerformedLongPress = false; 44 45 if (mPendingCheckForLongPress == null) { 46 mPendingCheckForLongPress = new CheckForLongPress(); 47 } 48 mView.postDelayed(mPendingCheckForLongPress, 49 LauncherAppState.getInstance().getLongPressTimeout()); 50 } 51 52 public void cancelLongPress() { 53 mHasPerformedLongPress = false; 54 if (mPendingCheckForLongPress != null) { 55 mView.removeCallbacks(mPendingCheckForLongPress); 56 mPendingCheckForLongPress = null; 57 } 58 } 59 60 public boolean hasPerformedLongPress() { 61 return mHasPerformedLongPress; 62 } 63 } 64
