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/*
* Copyright (C) 2016 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.tv.dvr.ui.browse;
import android.app.Activity;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.ColorDrawable;
import android.graphics.drawable.Drawable;
import android.os.Handler;
import android.support.v17.leanback.app.BackgroundManager;
/**
* The Background Helper.
*/
class DetailsViewBackgroundHelper {
// Background delay serves to avoid kicking off expensive bitmap loading
// in case multiple backgrounds are set in quick succession.
private static final int SET_BACKGROUND_DELAY_MS = 100;
private final BackgroundManager mBackgroundManager;
class LoadBackgroundRunnable implements Runnable {
final Drawable mBackGround;
LoadBackgroundRunnable(Drawable background) {
mBackGround = background;
}
@Override
public void run() {
if (!mBackgroundManager.isAttached()) {
return;
}
if (mBackGround instanceof BitmapDrawable) {
mBackgroundManager.setBitmap(((BitmapDrawable) mBackGround).getBitmap());
}
mRunnable = null;
}
}
private LoadBackgroundRunnable mRunnable;
private final Handler mHandler = new Handler();
public DetailsViewBackgroundHelper(Activity activity) {
mBackgroundManager = BackgroundManager.getInstance(activity);
mBackgroundManager.attach(activity.getWindow());
}
/**
* Sets the given image to background.
*/
public void setBackground(Drawable background) {
if (mRunnable != null) {
mHandler.removeCallbacks(mRunnable);
}
mRunnable = new LoadBackgroundRunnable(background);
mHandler.postDelayed(mRunnable, SET_BACKGROUND_DELAY_MS);
}
/**
* Sets the background color.
*/
public void setBackgroundColor(int color) {
if (mBackgroundManager.isAttached()) {
mBackgroundManager.setColor(color);
}
}
/**
* Sets the background scrim.
*/
public void setScrim(int color) {
if (mBackgroundManager.isAttached()) {
mBackgroundManager.setDimLayer(new ColorDrawable(color));
}
}
}
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