/*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.systemui.bubbles;
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import android.annotation.Nullable;
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import android.app.Notification;
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import android.content.Context;
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import android.graphics.Color;
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import android.graphics.drawable.AdaptiveIconDrawable;
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import android.graphics.drawable.ColorDrawable;
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import android.graphics.drawable.Drawable;
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import android.graphics.drawable.Icon;
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import android.graphics.drawable.InsetDrawable;
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import android.util.AttributeSet;
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import android.widget.FrameLayout;
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import com.android.internal.graphics.ColorUtils;
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import com.android.systemui.Interpolators;
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import com.android.systemui.R;
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import com.android.systemui.statusbar.notification.collection.NotificationEntry;
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import com.android.systemui.statusbar.notification.row.ExpandableNotificationRow;
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/**
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* A floating object on the screen that can post message updates.
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*/
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public class BubbleView extends FrameLayout {
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private static final String TAG = "BubbleView";
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private static final int DARK_ICON_ALPHA = 180;
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private static final double ICON_MIN_CONTRAST = 4.1;
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private static final int DEFAULT_BACKGROUND_COLOR = Color.LTGRAY;
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// Same value as Launcher3 badge code
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private static final float WHITE_SCRIM_ALPHA = 0.54f;
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private Context mContext;
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private BadgedImageView mBadgedImageView;
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private int mBadgeColor;
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private int mPadding;
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private int mIconInset;
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private boolean mSuppressDot = false;
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private NotificationEntry mEntry;
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public BubbleView(Context context) {
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this(context, null);
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}
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public BubbleView(Context context, AttributeSet attrs) {
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this(context, attrs, 0);
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}
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public BubbleView(Context context, AttributeSet attrs, int defStyleAttr) {
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this(context, attrs, defStyleAttr, 0);
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}
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public BubbleView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
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super(context, attrs, defStyleAttr, defStyleRes);
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mContext = context;
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// XXX: can this padding just be on the view and we look it up?
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mPadding = getResources().getDimensionPixelSize(R.dimen.bubble_view_padding);
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mIconInset = getResources().getDimensionPixelSize(R.dimen.bubble_icon_inset);
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}
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@Override
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protected void onFinishInflate() {
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super.onFinishInflate();
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mBadgedImageView = findViewById(R.id.bubble_image);
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}
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@Override
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protected void onAttachedToWindow() {
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super.onAttachedToWindow();
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}
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/**
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* Populates this view with a notification.
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* <p>
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* This should only be called when a new notification is being set on the view, updates to the
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* current notification should use {@link #update(NotificationEntry)}.
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*
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* @param entry the notification to display as a bubble.
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*/
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public void setNotif(NotificationEntry entry) {
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mEntry = entry;
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updateViews();
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}
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/**
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* The {@link NotificationEntry} associated with this view, if one exists.
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*/
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@Nullable
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public NotificationEntry getEntry() {
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return mEntry;
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}
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/**
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* The key for the {@link NotificationEntry} associated with this view, if one exists.
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*/
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@Nullable
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public String getKey() {
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return (mEntry != null) ? mEntry.key : null;
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}
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/**
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* Updates the UI based on the entry, updates badge and animates messages as needed.
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*/
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public void update(NotificationEntry entry) {
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mEntry = entry;
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updateViews();
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}
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/**
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* @return the {@link ExpandableNotificationRow} view to display notification content when the
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* bubble is expanded.
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*/
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@Nullable
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public ExpandableNotificationRow getRowView() {
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return (mEntry != null) ? mEntry.getRow() : null;
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}
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/** Changes the dot's visibility to match the bubble view's state. */
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void updateDotVisibility(boolean animate) {
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updateDotVisibility(animate, null /* after */);
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}
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/**
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* Sets whether or not to hide the dot even if we'd otherwise show it. This is used while the
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* flyout is visible or animating, to hide the dot until the flyout visually transforms into it.
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*/
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void setSuppressDot(boolean suppressDot, boolean animate) {
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mSuppressDot = suppressDot;
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updateDotVisibility(animate);
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}
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/** Sets the position of the 'new' dot, animating it out and back in if requested. */
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void setDotPosition(boolean onLeft, boolean animate) {
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if (animate && onLeft != mBadgedImageView.getDotPosition() && !mSuppressDot) {
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animateDot(false /* showDot */, () -> {
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mBadgedImageView.setDotPosition(onLeft);
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animateDot(true /* showDot */, null);
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});
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} else {
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mBadgedImageView.setDotPosition(onLeft);
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}
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}
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boolean getDotPositionOnLeft() {
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return mBadgedImageView.getDotPosition();
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}
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/**
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* Changes the dot's visibility to match the bubble view's state, running the provided callback
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* after animation if requested.
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*/
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private void updateDotVisibility(boolean animate, Runnable after) {
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boolean showDot = getEntry().showInShadeWhenBubble() && !mSuppressDot;
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if (animate) {
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animateDot(showDot, after);
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} else {
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mBadgedImageView.setShowDot(showDot);
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}
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}
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/**
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* Animates the badge to show or hide.
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*/
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private void animateDot(boolean showDot, Runnable after) {
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if (mBadgedImageView.isShowingDot() != showDot) {
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if (showDot) {
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mBadgedImageView.setShowDot(true);
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}
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mBadgedImageView.clearAnimation();
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mBadgedImageView.animate().setDuration(200)
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.setInterpolator(Interpolators.FAST_OUT_SLOW_IN)
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.setUpdateListener((valueAnimator) -> {
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float fraction = valueAnimator.getAnimatedFraction();
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fraction = showDot ? fraction : 1f - fraction;
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mBadgedImageView.setDotScale(fraction);
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}).withEndAction(() -> {
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if (!showDot) {
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mBadgedImageView.setShowDot(false);
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}
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if (after != null) {
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after.run();
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}
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}).start();
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}
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}
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void updateViews() {
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if (mEntry == null) {
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return;
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}
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Notification.BubbleMetadata metadata = mEntry.getBubbleMetadata();
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Notification n = mEntry.notification.getNotification();
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Icon ic;
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boolean needsTint;
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if (metadata != null) {
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ic = metadata.getIcon();
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needsTint = ic.getType() != Icon.TYPE_ADAPTIVE_BITMAP;
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} else {
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needsTint = n.getLargeIcon() == null;
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ic = needsTint ? n.getSmallIcon() : n.getLargeIcon();
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}
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Drawable iconDrawable = ic.loadDrawable(mContext);
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if (needsTint) {
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mBadgedImageView.setImageDrawable(buildIconWithTint(iconDrawable, n.color));
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} else {
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mBadgedImageView.setImageDrawable(iconDrawable);
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}
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int badgeColor = determineDominateColor(iconDrawable, n.color);
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mBadgeColor = badgeColor;
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mBadgedImageView.setDotColor(badgeColor);
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animateDot(mEntry.showInShadeWhenBubble() /* showDot */, null /* after */);
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}
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int getBadgeColor() {
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return mBadgeColor;
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}
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private Drawable buildIconWithTint(Drawable iconDrawable, int backgroundColor) {
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iconDrawable = checkTint(iconDrawable, backgroundColor);
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InsetDrawable foreground = new InsetDrawable(iconDrawable, mIconInset);
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ColorDrawable background = new ColorDrawable(backgroundColor);
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return new AdaptiveIconDrawable(background, foreground);
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}
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private Drawable checkTint(Drawable iconDrawable, int backgroundColor) {
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backgroundColor = ColorUtils.setAlphaComponent(backgroundColor, 255 /* alpha */);
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if (backgroundColor == Color.TRANSPARENT) {
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// ColorUtils throws exception when background is translucent.
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backgroundColor = DEFAULT_BACKGROUND_COLOR;
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}
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iconDrawable.setTint(Color.WHITE);
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double contrastRatio = ColorUtils.calculateContrast(Color.WHITE, backgroundColor);
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if (contrastRatio < ICON_MIN_CONTRAST) {
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int dark = ColorUtils.setAlphaComponent(Color.BLACK, DARK_ICON_ALPHA);
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iconDrawable.setTint(dark);
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}
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return iconDrawable;
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}
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private int determineDominateColor(Drawable d, int defaultTint) {
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// XXX: should we pull from the drawable, app icon, notif tint?
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return ColorUtils.blendARGB(defaultTint, Color.WHITE, WHITE_SCRIM_ALPHA);
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}
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}
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