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/*
* Copyright (C) 2015 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.widget;
import android.content.Context;
import android.graphics.Rect;
import android.graphics.drawable.Drawable;
import android.support.v7.widget.RecyclerView;
import android.util.AttributeSet;
import android.view.MotionEvent;
import com.android.launcher3.BaseRecyclerView;
import com.android.launcher3.model.WidgetsModel;
/**
* The widgets recycler view.
*/
public class WidgetsRecyclerView extends BaseRecyclerView {
private WidgetsModel mWidgets;
private Rect mBackgroundPadding = new Rect();
public WidgetsRecyclerView(Context context) {
this(context, null);
}
public WidgetsRecyclerView(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public WidgetsRecyclerView(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
}
@Override
protected void onFinishInflate() {
super.onFinishInflate();
addOnItemTouchListener(this);
}
public void updateBackgroundPadding(Drawable background) {
background.getPadding(mBackgroundPadding);
}
/**
* Sets the widget model in this view, used to determine the fast scroll position.
*/
public void setWidgets(WidgetsModel widgets) {
mWidgets = widgets;
}
/**
* Maps the touch (from 0..1) to the adapter position that should be visible.
*/
@Override
public String scrollToPositionAtProgress(float touchFraction) {
// Ensure that we have any sections
return "";
}
/**
* Updates the bounds for the scrollbar.
*/
@Override
public void updateVerticalScrollbarBounds() {
int rowCount = mWidgets.getPackageSize();
// Skip early if there are no items.
if (rowCount == 0) {
verticalScrollbarBounds.setEmpty();
return;
}
int x, y;
getCurScrollState(scrollPosState);
if (scrollPosState.rowIndex < 0) {
verticalScrollbarBounds.setEmpty();
}
// TODO
}
/**
* Returns the current scroll state.
*/
private void getCurScrollState(ScrollPositionState stateOut) {
stateOut.rowIndex = -1;
stateOut.rowTopOffset = -1;
stateOut.rowHeight = -1;
int rowCount = mWidgets.getPackageSize();
// Return early if there are no items
if (rowCount == 0) {
return;
}
// TODO
}
}
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