content: /*
   * Copyright (C) 2012 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.launcher3;
  
  import android.view.View;
  import android.view.ViewConfiguration;
  
  import com.android.launcher3.util.Thunk;
  
  public class CheckLongPressHelper {
  
      public static final float DEFAULT_LONG_PRESS_TIMEOUT_FACTOR = 0.75f;
  
      @Thunk View mView;
      @Thunk View.OnLongClickListener mListener;
      @Thunk boolean mHasPerformedLongPress;
      private float mLongPressTimeoutFactor = DEFAULT_LONG_PRESS_TIMEOUT_FACTOR;
      private CheckForLongPress mPendingCheckForLongPress;
  
      class CheckForLongPress implements Runnable {
          public void run() {
              if ((mView.getParent() != null) && mView.hasWindowFocus()
                      && !mHasPerformedLongPress) {
                  boolean handled;
                  if (mListener != null) {
                      handled = mListener.onLongClick(mView);
                  } else {
                      handled = mView.performLongClick();
                  }
                  if (handled) {
                      mView.setPressed(false);
                      mHasPerformedLongPress = true;
                  }
              }
          }
      }
  
      public CheckLongPressHelper(View v) {
          mView = v;
      }
  
      public CheckLongPressHelper(View v, View.OnLongClickListener listener) {
          mView = v;
          mListener = listener;
      }
  
      /**
       * Overrides the default long press timeout.
       */
      public void setLongPressTimeoutFactor(float longPressTimeoutFactor) {
          mLongPressTimeoutFactor = longPressTimeoutFactor;
      }
  
      public void postCheckForLongPress() {
          mHasPerformedLongPress = false;
  
          if (mPendingCheckForLongPress == null) {
              mPendingCheckForLongPress = new CheckForLongPress();
          }
          mView.postDelayed(mPendingCheckForLongPress,
                  (long) (ViewConfiguration.getLongPressTimeout() * mLongPressTimeoutFactor));
      }
  
      public void cancelLongPress() {
          mHasPerformedLongPress = false;
          if (mPendingCheckForLongPress != null) {
              mView.removeCallbacks(mPendingCheckForLongPress);
              mPendingCheckForLongPress = null;
          }
      }
  
      public boolean hasPerformedLongPress() {
          return mHasPerformedLongPress;
      }
  }
  