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/*
* Copyright (C) 2021 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.taskbar;
import android.content.Context;
import android.graphics.Canvas;
import android.util.AttributeSet;
import android.view.View;
import com.android.launcher3.views.ActivityContext;
/**
* View that handles scrimming the taskbar and the inverted corners it draws. The scrim is used
* when bubbles is expanded.
*/
public class TaskbarScrimView extends View {
private final TaskbarBackgroundRenderer mRenderer;
private boolean mShowScrim;
public TaskbarScrimView(Context context) {
this(context, null);
}
public TaskbarScrimView(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public TaskbarScrimView(Context context, AttributeSet attrs, int defStyleAttr) {
this(context, attrs, defStyleAttr, 0);
}
public TaskbarScrimView(Context context, AttributeSet attrs, int defStyleAttr,
int defStyleRes) {
super(context, attrs, defStyleAttr, defStyleRes);
mRenderer = new TaskbarBackgroundRenderer(ActivityContext.lookupContext(context));
mRenderer.getPaint().setColor(getResources().getColor(
android.R.color.system_neutral1_1000));
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
if (mShowScrim) {
mRenderer.draw(canvas);
}
}
/**
* Sets the alpha of the taskbar scrim.
* @param alpha the alpha of the scrim.
*/
protected void setScrimAlpha(float alpha) {
mShowScrim = alpha > 0f;
mRenderer.getPaint().setAlpha((int) (alpha * 255));
invalidate();
}
/**
* Sets the roundness of the round corner above Taskbar.
* @param cornerRoundness 0 has no round corner, 1 has complete round corner.
*/
protected void setCornerRoundness(float cornerRoundness) {
mRenderer.setCornerRoundness(cornerRoundness);
invalidate();
}
}
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