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/*
* Copyright (C) 2019 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.systemui.biometrics;
import android.animation.AnimatorSet;
import android.animation.ValueAnimator;
import android.annotation.IntDef;
import android.content.Context;
import android.graphics.Outline;
import android.util.Log;
import android.view.View;
import android.view.ViewOutlineProvider;
import android.view.animation.AccelerateDecelerateInterpolator;
import com.android.systemui.R;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
/**
* Controls the back panel and its animations for the BiometricPrompt UI.
*/
public class AuthPanelController extends ViewOutlineProvider {
public static final int POSITION_BOTTOM = 1;
public static final int POSITION_LEFT = 2;
public static final int POSITION_RIGHT = 3;
@IntDef({POSITION_BOTTOM, POSITION_LEFT, POSITION_RIGHT})
@Retention(RetentionPolicy.SOURCE)
public @interface Position {}
private static final String TAG = "BiometricPrompt/AuthPanelController";
private static final boolean DEBUG = false;
private final Context mContext;
private final View mPanelView;
@Position private int mPosition = POSITION_BOTTOM;
private boolean mUseFullScreen;
private int mContainerWidth;
private int mContainerHeight;
private int mContentWidth;
private int mContentHeight;
private float mCornerRadius;
private int mMargin;
@Override
public void getOutline(View view, Outline outline) {
final int left = getLeftBound(mPosition);
final int right = left + mContentWidth;
// If the content fits in the container, shrink the height to wrap it. Otherwise, expand to
// fill the display (minus the margin), since the content is scrollable.
final int top = getTopBound(mPosition);
final int bottom = Math.min(top + mContentHeight, mContainerHeight - mMargin);
outline.setRoundRect(left, top, right, bottom, mCornerRadius);
}
private int getLeftBound(@Position int position) {
switch (position) {
case POSITION_BOTTOM:
return (mContainerWidth - mContentWidth) / 2;
case POSITION_LEFT:
return mMargin;
case POSITION_RIGHT:
return mContainerWidth - mContentWidth - mMargin;
default:
Log.e(TAG, "Unrecognized position: " + position);
return getLeftBound(POSITION_BOTTOM);
}
}
private int getTopBound(@Position int position) {
switch (position) {
case POSITION_BOTTOM:
return Math.max(mContainerHeight - mContentHeight - mMargin, mMargin);
case POSITION_LEFT:
case POSITION_RIGHT:
return Math.max((mContainerHeight - mContentHeight) / 2, mMargin);
default:
Log.e(TAG, "Unrecognized position: " + position);
return getTopBound(POSITION_BOTTOM);
}
}
public void setContainerDimensions(int containerWidth, int containerHeight) {
if (DEBUG) {
Log.v(TAG, "Container Width: " + containerWidth + " Height: " + containerHeight);
}
mContainerWidth = containerWidth;
mContainerHeight = containerHeight;
}
public void setPosition(@Position int position) {
mPosition = position;
}
public void setUseFullScreen(boolean fullScreen) {
mUseFullScreen = fullScreen;
}
public void updateForContentDimensions(int contentWidth, int contentHeight,
int animateDurationMs) {
if (DEBUG) {
Log.v(TAG, "Content Width: " + contentWidth
+ " Height: " + contentHeight
+ " Animate: " + animateDurationMs);
}
if (mContainerWidth == 0 || mContainerHeight == 0) {
Log.w(TAG, "Not done measuring yet");
return;
}
final int margin = mUseFullScreen ? 0 : (int) mContext.getResources()
.getDimension(R.dimen.biometric_dialog_border_padding);
final float cornerRadius = mUseFullScreen ? 0 : mContext.getResources()
.getDimension(R.dimen.biometric_dialog_corner_size);
if (animateDurationMs > 0) {
// Animate margin
ValueAnimator marginAnimator = ValueAnimator.ofInt(mMargin, margin);
marginAnimator.addUpdateListener((animation) -> {
mMargin = (int) animation.getAnimatedValue();
});
// Animate corners
ValueAnimator cornerAnimator = ValueAnimator.ofFloat(mCornerRadius, cornerRadius);
cornerAnimator.addUpdateListener((animation) -> {
mCornerRadius = (float) animation.getAnimatedValue();
});
// Animate height
ValueAnimator heightAnimator = ValueAnimator.ofInt(mContentHeight, contentHeight);
heightAnimator.addUpdateListener((animation) -> {
mContentHeight = (int) animation.getAnimatedValue();
mPanelView.invalidateOutline();
});
// Animate width
ValueAnimator widthAnimator = ValueAnimator.ofInt(mContentWidth, contentWidth);
widthAnimator.addUpdateListener((animation) -> {
mContentWidth = (int) animation.getAnimatedValue();
});
// Play together
AnimatorSet as = new AnimatorSet();
as.setDuration(animateDurationMs);
as.setInterpolator(new AccelerateDecelerateInterpolator());
as.playTogether(cornerAnimator, heightAnimator, widthAnimator, marginAnimator);
as.start();
} else {
mMargin = margin;
mCornerRadius = cornerRadius;
mContentWidth = contentWidth;
mContentHeight = contentHeight;
mPanelView.invalidateOutline();
}
}
int getContainerWidth() {
return mContainerWidth;
}
int getContainerHeight() {
return mContainerHeight;
}
AuthPanelController(Context context, View panelView) {
mContext = context;
mPanelView = panelView;
mCornerRadius = context.getResources()
.getDimension(R.dimen.biometric_dialog_corner_size);
mMargin = (int) context.getResources()
.getDimension(R.dimen.biometric_dialog_border_padding);
mPanelView.setOutlineProvider(this);
mPanelView.setClipToOutline(true);
}
}
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