content: /*
   * Copyright (C) 2011 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.content.Context;
  import android.view.MotionEvent;
  import android.view.View;
  import android.widget.FrameLayout;
  import android.widget.GridLayout;
  
  /**
   * The grid based layout used strictly for the widget/wallpaper tab of the AppsCustomize pane
   */
  public class PagedViewGridLayout extends GridLayout implements Page {
      static final String TAG = "PagedViewGridLayout";
  
      private int mCellCountX;
      private int mCellCountY;
      private Runnable mOnLayoutListener;
  
      public PagedViewGridLayout(Context context, int cellCountX, int cellCountY) {
          super(context, null, 0);
          mCellCountX = cellCountX;
          mCellCountY = cellCountY;
      }
  
      int getCellCountX() {
          return mCellCountX;
      }
  
      int getCellCountY() {
          return mCellCountY;
      }
  
      /**
       * Clears all the key listeners for the individual widgets.
       */
      public void resetChildrenOnKeyListeners() {
          int childCount = getChildCount();
          for (int j = 0; j < childCount; ++j) {
              getChildAt(j).setOnKeyListener(null);
          }
      }
  
      @Override
      protected void onDetachedFromWindow() {
          super.onDetachedFromWindow();
          mOnLayoutListener = null;
      }
  
      public void setOnLayoutListener(Runnable r) {
          mOnLayoutListener = r;
      }
  
      protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
          super.onLayout(changed, left, top, right, bottom);
          if (mOnLayoutListener != null) {
              mOnLayoutListener.run();
          }
      }
  
      @Override
      public boolean onTouchEvent(MotionEvent event) {
          boolean result = super.onTouchEvent(event);
          int count = getPageChildCount();
          if (count > 0) {
              // We only intercept the touch if we are tapping in empty space after the final row
              View child = getChildOnPageAt(count - 1);
              int bottom = child.getBottom();
              result = result || (event.getY() < bottom);
          }
          return result;
      }
  
      @Override
      public void removeAllViewsOnPage() {
          removeAllViews();
          mOnLayoutListener = null;
          setLayerType(LAYER_TYPE_NONE, null);
      }
  
      @Override
      public void removeViewOnPageAt(int index) {
          removeViewAt(index);
      }
  
      @Override
      public int getPageChildCount() {
          return getChildCount();
      }
  
      @Override
      public View getChildOnPageAt(int i) {
          return getChildAt(i);
      }
  
      @Override
      public int indexOfChildOnPage(View v) {
          return indexOfChild(v);
      }
  
      public static class LayoutParams extends FrameLayout.LayoutParams {
          public LayoutParams(int width, int height) {
              super(width, height);
          }
      }
  }
  