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/*
* 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.android.launcher3;
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);
}
}
}
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