content: /*
   * Copyright (C) 2009 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.lb.launcher;
  
  import android.appwidget.AppWidgetHostView;
  import android.content.Context;
  import android.view.LayoutInflater;
  import android.view.MotionEvent;
  import android.view.View;
  import android.view.ViewConfiguration;
  import android.view.ViewGroup;
  import android.widget.RemoteViews;
  import com.lb.launcher.R;
  import com.lb.launcher.DragLayer.TouchCompleteListener;
  
  /**
   * {@inheritDoc}
   */
  public class LauncherAppWidgetHostView extends AppWidgetHostView implements TouchCompleteListener {
  
      LayoutInflater mInflater;
  
      private CheckLongPressHelper mLongPressHelper;
      private Context mContext;
      private int mPreviousOrientation;
      private DragLayer mDragLayer;
  
      private float mSlop;
  
      public LauncherAppWidgetHostView(Context context) {
          super(context);
          mContext = context;
          mLongPressHelper = new CheckLongPressHelper(this);
          mInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
          mDragLayer = ((Launcher) context).getDragLayer();
      }
  
      @Override
      protected View getErrorView() {
          return mInflater.inflate(R.layout.appwidget_error, this, false);
      }
  
      @Override
      public void updateAppWidget(RemoteViews remoteViews) {
          // Store the orientation in which the widget was inflated
          mPreviousOrientation = mContext.getResources().getConfiguration().orientation;
          super.updateAppWidget(remoteViews);
      }
  
      public boolean isReinflateRequired() {
          // Re-inflate is required if the orientation has changed since last inflated.
          int orientation = mContext.getResources().getConfiguration().orientation;
          if (mPreviousOrientation != orientation) {
             return true;
         }
         return false;
      }
  
      public boolean onInterceptTouchEvent(MotionEvent ev) {
          // Just in case the previous long press hasn't been cleared, we make sure to start fresh
          // on touch down.
          if (ev.getAction() == MotionEvent.ACTION_DOWN) {
              mLongPressHelper.cancelLongPress();
          }
  
          // Consume any touch events for ourselves after longpress is triggered
          if (mLongPressHelper.hasPerformedLongPress()) {
              mLongPressHelper.cancelLongPress();
              return true;
          }
  
          // Watch for longpress events at this level to make sure
          // users can always pick up this widget
          switch (ev.getAction()) {
              case MotionEvent.ACTION_DOWN: {
                  mLongPressHelper.postCheckForLongPress();
                  mDragLayer.setTouchCompleteListener(this);
                  break;
              }
  
              case MotionEvent.ACTION_UP:
              case MotionEvent.ACTION_CANCEL:
                  mLongPressHelper.cancelLongPress();
                  break;
              case MotionEvent.ACTION_MOVE:
                  if (!Utilities.pointInView(this, ev.getX(), ev.getY(), mSlop)) {
                      mLongPressHelper.cancelLongPress();
                  }
                  break;
          }
  
          // Otherwise continue letting touch events fall through to children
          return false;
      }
  
      public boolean onTouchEvent(MotionEvent ev) {
          // If the widget does not handle touch, then cancel
          // long press when we release the touch
          switch (ev.getAction()) {
              case MotionEvent.ACTION_UP:
              case MotionEvent.ACTION_CANCEL:
                  mLongPressHelper.cancelLongPress();
                  break;
              case MotionEvent.ACTION_MOVE:
                  if (!Utilities.pointInView(this, ev.getX(), ev.getY(), mSlop)) {
                      mLongPressHelper.cancelLongPress();
                  }
                  break;
          }
          return false;
      }
  
      @Override
      protected void onAttachedToWindow() {
          super.onAttachedToWindow();
          mSlop = ViewConfiguration.get(getContext()).getScaledTouchSlop();
      }
  
      @Override
      public void cancelLongPress() {
          super.cancelLongPress();
          mLongPressHelper.cancelLongPress();
      }
  
      @Override
      public void onTouchComplete() {
          if (!mLongPressHelper.hasPerformedLongPress()) {
              // If a long press has been performed, we don't want to clear the record of that since
              // we still may be receiving a touch up which we want to intercept
              mLongPressHelper.cancelLongPress();
          }
      }
  
      @Override
      public int getDescendantFocusability() {
          return ViewGroup.FOCUS_BLOCK_DESCENDANTS;
      }
  }
  