/* * 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.server.am; import android.content.Context; import android.content.pm.UserInfo; import android.content.res.Resources; import android.graphics.Bitmap; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.ColorFilter; import android.graphics.Paint; import android.graphics.Path; import android.graphics.PixelFormat; import android.graphics.PorterDuff; import android.graphics.PorterDuffXfermode; import android.graphics.Rect; import android.graphics.RectF; import android.graphics.drawable.ColorDrawable; import android.graphics.drawable.Drawable; import android.os.UserManager; import android.view.LayoutInflater; import android.view.View; import android.widget.ImageView; import android.widget.TextView; import com.android.internal.R; /** * Dialog to show when a user switch it about to happen for the car. The intent is to snapshot the * screen immediately after the dialog shows so that the user is informed that something is * happening in the background rather than just freeze the screen and not know if the user-switch * affordance was being handled. */ final class CarUserSwitchingDialog extends UserSwitchingDialog { private static final String TAG = "ActivityManagerCarUserSwitchingDialog"; public CarUserSwitchingDialog(ActivityManagerService service, Context context, UserInfo oldUser, UserInfo newUser, boolean aboveSystem, String switchingFromSystemUserMessage, String switchingToSystemUserMessage) { super(service, context, oldUser, newUser, aboveSystem, switchingFromSystemUserMessage, switchingToSystemUserMessage); getWindow().setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT)); } @Override void inflateContent() { // Set up the dialog contents setCancelable(false); Resources res = getContext().getResources(); // Custom view due to alignment and font size requirements View view = LayoutInflater.from(getContext()).inflate(R.layout.car_user_switching_dialog, null); UserManager userManager = (UserManager) getContext().getSystemService(Context.USER_SERVICE); Bitmap bitmap = userManager.getUserIcon(mNewUser.id); if (bitmap != null) { CircleFramedDrawable drawable = CircleFramedDrawable.getInstance(bitmap, res.getDimension(R.dimen.car_fullscreen_user_pod_image_avatar_height)); ((ImageView) view.findViewById(R.id.user_loading_avatar)) .setImageDrawable(drawable); } ((TextView) view.findViewById(R.id.user_loading)) .setText(res.getString(R.string.car_loading_profile)); setView(view); } /** * Converts the user icon to a circularly clipped one. This is used in the User Picker and * Settings. */ static class CircleFramedDrawable extends Drawable { private final Bitmap mBitmap; private final int mSize; private final Paint mPaint; private float mScale; private Rect mSrcRect; private RectF mDstRect; public static CircleFramedDrawable getInstance(Bitmap icon, float iconSize) { CircleFramedDrawable instance = new CircleFramedDrawable(icon, (int) iconSize); return instance; } public CircleFramedDrawable(Bitmap icon, int size) { super(); mSize = size; mBitmap = Bitmap.createBitmap(mSize, mSize, Bitmap.Config.ARGB_8888); final Canvas canvas = new Canvas(mBitmap); final int width = icon.getWidth(); final int height = icon.getHeight(); final int square = Math.min(width, height); final Rect cropRect = new Rect((width - square) / 2, (height - square) / 2, square, square); final RectF circleRect = new RectF(0f, 0f, mSize, mSize); final Path fillPath = new Path(); fillPath.addArc(circleRect, 0f, 360f); canvas.drawColor(0, PorterDuff.Mode.CLEAR); // opaque circle mPaint = new Paint(); mPaint.setAntiAlias(true); mPaint.setColor(Color.BLACK); mPaint.setStyle(Paint.Style.FILL); canvas.drawPath(fillPath, mPaint); // mask in the icon where the bitmap is opaque mPaint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN)); canvas.drawBitmap(icon, cropRect, circleRect, mPaint); // prepare paint for frame drawing mPaint.setXfermode(null); mScale = 1f; mSrcRect = new Rect(0, 0, mSize, mSize); mDstRect = new RectF(0, 0, mSize, mSize); } @Override public void draw(Canvas canvas) { final float inside = mScale * mSize; final float pad = (mSize - inside) / 2f; mDstRect.set(pad, pad, mSize - pad, mSize - pad); canvas.drawBitmap(mBitmap, mSrcRect, mDstRect, null); } @Override public int getOpacity() { return PixelFormat.TRANSLUCENT; } @Override public void setAlpha(int alpha) { // Needed to implement abstract method. Do nothing. } @Override public void setColorFilter(ColorFilter colorFilter) { // Needed to implement abstract method. Do nothing. } } }