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/*
* Copyright (C) 2018 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.bubbles;
import android.annotation.Nullable;
import android.app.Notification;
import android.content.Context;
import android.graphics.Color;
import android.graphics.drawable.AdaptiveIconDrawable;
import android.graphics.drawable.ColorDrawable;
import android.graphics.drawable.Drawable;
import android.graphics.drawable.Icon;
import android.graphics.drawable.InsetDrawable;
import android.util.AttributeSet;
import android.widget.FrameLayout;
import com.android.internal.graphics.ColorUtils;
import com.android.systemui.Interpolators;
import com.android.systemui.R;
import com.android.systemui.statusbar.notification.collection.NotificationEntry;
import com.android.systemui.statusbar.notification.row.ExpandableNotificationRow;
/**
* A floating object on the screen that can post message updates.
*/
public class BubbleView extends FrameLayout {
private static final String TAG = "BubbleView";
private static final int DARK_ICON_ALPHA = 180;
private static final double ICON_MIN_CONTRAST = 4.1;
private static final int DEFAULT_BACKGROUND_COLOR = Color.LTGRAY;
// Same value as Launcher3 badge code
private static final float WHITE_SCRIM_ALPHA = 0.54f;
private Context mContext;
private BadgedImageView mBadgedImageView;
private int mBadgeColor;
private int mPadding;
private int mIconInset;
private boolean mSuppressDot = false;
private NotificationEntry mEntry;
public BubbleView(Context context) {
this(context, null);
}
public BubbleView(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public BubbleView(Context context, AttributeSet attrs, int defStyleAttr) {
this(context, attrs, defStyleAttr, 0);
}
public BubbleView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
super(context, attrs, defStyleAttr, defStyleRes);
mContext = context;
// XXX: can this padding just be on the view and we look it up?
mPadding = getResources().getDimensionPixelSize(R.dimen.bubble_view_padding);
mIconInset = getResources().getDimensionPixelSize(R.dimen.bubble_icon_inset);
}
@Override
protected void onFinishInflate() {
super.onFinishInflate();
mBadgedImageView = findViewById(R.id.bubble_image);
}
@Override
protected void onAttachedToWindow() {
super.onAttachedToWindow();
}
/**
* Populates this view with a notification.
*
* This should only be called when a new notification is being set on the view, updates to the
* current notification should use {@link #update(NotificationEntry)}.
*
* @param entry the notification to display as a bubble.
*/
public void setNotif(NotificationEntry entry) {
mEntry = entry;
updateViews();
}
/**
* The {@link NotificationEntry} associated with this view, if one exists.
*/
@Nullable
public NotificationEntry getEntry() {
return mEntry;
}
/**
* The key for the {@link NotificationEntry} associated with this view, if one exists.
*/
@Nullable
public String getKey() {
return (mEntry != null) ? mEntry.key : null;
}
/**
* Updates the UI based on the entry, updates badge and animates messages as needed.
*/
public void update(NotificationEntry entry) {
mEntry = entry;
updateViews();
}
/**
* @return the {@link ExpandableNotificationRow} view to display notification content when the
* bubble is expanded.
*/
@Nullable
public ExpandableNotificationRow getRowView() {
return (mEntry != null) ? mEntry.getRow() : null;
}
/** Changes the dot's visibility to match the bubble view's state. */
void updateDotVisibility(boolean animate) {
updateDotVisibility(animate, null /* after */);
}
/**
* Sets whether or not to hide the dot even if we'd otherwise show it. This is used while the
* flyout is visible or animating, to hide the dot until the flyout visually transforms into it.
*/
void setSuppressDot(boolean suppressDot, boolean animate) {
mSuppressDot = suppressDot;
updateDotVisibility(animate);
}
/** Sets the position of the 'new' dot, animating it out and back in if requested. */
void setDotPosition(boolean onLeft, boolean animate) {
if (animate && onLeft != mBadgedImageView.getDotPosition() && !mSuppressDot) {
animateDot(false /* showDot */, () -> {
mBadgedImageView.setDotPosition(onLeft);
animateDot(true /* showDot */, null);
});
} else {
mBadgedImageView.setDotPosition(onLeft);
}
}
boolean getDotPositionOnLeft() {
return mBadgedImageView.getDotPosition();
}
/**
* Changes the dot's visibility to match the bubble view's state, running the provided callback
* after animation if requested.
*/
private void updateDotVisibility(boolean animate, Runnable after) {
boolean showDot = getEntry().showInShadeWhenBubble() && !mSuppressDot;
if (animate) {
animateDot(showDot, after);
} else {
mBadgedImageView.setShowDot(showDot);
}
}
/**
* Animates the badge to show or hide.
*/
private void animateDot(boolean showDot, Runnable after) {
if (mBadgedImageView.isShowingDot() != showDot) {
if (showDot) {
mBadgedImageView.setShowDot(true);
}
mBadgedImageView.clearAnimation();
mBadgedImageView.animate().setDuration(200)
.setInterpolator(Interpolators.FAST_OUT_SLOW_IN)
.setUpdateListener((valueAnimator) -> {
float fraction = valueAnimator.getAnimatedFraction();
fraction = showDot ? fraction : 1f - fraction;
mBadgedImageView.setDotScale(fraction);
}).withEndAction(() -> {
if (!showDot) {
mBadgedImageView.setShowDot(false);
}
if (after != null) {
after.run();
}
}).start();
}
}
void updateViews() {
if (mEntry == null) {
return;
}
Notification.BubbleMetadata metadata = mEntry.getBubbleMetadata();
Notification n = mEntry.notification.getNotification();
Icon ic;
boolean needsTint;
if (metadata != null) {
ic = metadata.getIcon();
needsTint = ic.getType() != Icon.TYPE_ADAPTIVE_BITMAP;
} else {
needsTint = n.getLargeIcon() == null;
ic = needsTint ? n.getSmallIcon() : n.getLargeIcon();
}
Drawable iconDrawable = ic.loadDrawable(mContext);
if (needsTint) {
mBadgedImageView.setImageDrawable(buildIconWithTint(iconDrawable, n.color));
} else {
mBadgedImageView.setImageDrawable(iconDrawable);
}
int badgeColor = determineDominateColor(iconDrawable, n.color);
mBadgeColor = badgeColor;
mBadgedImageView.setDotColor(badgeColor);
animateDot(mEntry.showInShadeWhenBubble() /* showDot */, null /* after */);
}
int getBadgeColor() {
return mBadgeColor;
}
private Drawable buildIconWithTint(Drawable iconDrawable, int backgroundColor) {
iconDrawable = checkTint(iconDrawable, backgroundColor);
InsetDrawable foreground = new InsetDrawable(iconDrawable, mIconInset);
ColorDrawable background = new ColorDrawable(backgroundColor);
return new AdaptiveIconDrawable(background, foreground);
}
private Drawable checkTint(Drawable iconDrawable, int backgroundColor) {
backgroundColor = ColorUtils.setAlphaComponent(backgroundColor, 255 /* alpha */);
if (backgroundColor == Color.TRANSPARENT) {
// ColorUtils throws exception when background is translucent.
backgroundColor = DEFAULT_BACKGROUND_COLOR;
}
iconDrawable.setTint(Color.WHITE);
double contrastRatio = ColorUtils.calculateContrast(Color.WHITE, backgroundColor);
if (contrastRatio < ICON_MIN_CONTRAST) {
int dark = ColorUtils.setAlphaComponent(Color.BLACK, DARK_ICON_ALPHA);
iconDrawable.setTint(dark);
}
return iconDrawable;
}
private int determineDominateColor(Drawable d, int defaultTint) {
// XXX: should we pull from the drawable, app icon, notif tint?
return ColorUtils.blendARGB(defaultTint, Color.WHITE, WHITE_SCRIM_ALPHA);
}
}