| /* |
| * Copyright (C) 2014 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.settings; |
| |
| import com.android.systemui.R; |
| |
| import android.app.ActivityManagerNative; |
| import android.content.Context; |
| import android.content.pm.UserInfo; |
| import android.graphics.Bitmap; |
| import android.graphics.BitmapShader; |
| import android.graphics.Canvas; |
| import android.graphics.Paint; |
| import android.graphics.Shader; |
| import android.os.Handler; |
| import android.os.RemoteException; |
| import android.os.UserManager; |
| import android.provider.Settings; |
| import android.provider.Settings.SettingNotFoundException; |
| import android.util.AttributeSet; |
| import android.util.Log; |
| import android.view.LayoutInflater; |
| import android.view.MotionEvent; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.view.WindowManagerGlobal; |
| import android.widget.AdapterView; |
| import android.widget.BaseAdapter; |
| import android.widget.FrameLayout; |
| import android.widget.ImageView; |
| import android.widget.ListView; |
| import android.widget.TextView; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * A quick and dirty view to show a user switcher. |
| */ |
| public class UserSwitcherHostView extends FrameLayout |
| implements ListView.OnItemClickListener, View.OnClickListener { |
| |
| private static final String TAG = "UserSwitcherDialog"; |
| |
| private ArrayList<UserInfo> mUserInfo = new ArrayList<UserInfo>(); |
| private UserInfo mGuestUser; |
| private Adapter mAdapter = new Adapter(); |
| private UserManager mUserManager; |
| private Runnable mFinishRunnable; |
| private ListView mListView; |
| private boolean mGuestUserEnabled; |
| |
| public UserSwitcherHostView(Context context, AttributeSet attrs, int defStyleAttr) { |
| super(context, attrs, defStyleAttr); |
| |
| if (isInEditMode()) { |
| return; |
| } |
| mUserManager = (UserManager) context.getSystemService(Context.USER_SERVICE); |
| |
| mGuestUserEnabled = Settings.Global.getInt(context.getContentResolver(), |
| Settings.Global.GUEST_USER_ENABLED, 0) == 1; |
| } |
| |
| public UserSwitcherHostView(Context context, AttributeSet attrs) { |
| this(context, attrs, com.android.internal.R.attr.listViewStyle); |
| } |
| |
| public UserSwitcherHostView(Context context) { |
| this(context, null); |
| } |
| |
| @Override |
| protected void onFinishInflate() { |
| super.onFinishInflate(); |
| mListView = (ListView) findViewById(android.R.id.list); |
| mListView.setAdapter(mAdapter); |
| mListView.setOnItemClickListener(this); |
| } |
| |
| @Override |
| public void onItemClick(AdapterView<?> l, View v, int position, long id) { |
| // Last item is the guest |
| if (position == mUserInfo.size()) { |
| postDelayed(new Runnable() { |
| public void run() { |
| switchToGuestUser(); |
| } |
| }, 100); |
| } else { |
| final int userId = mAdapter.getItem(position).id; |
| postDelayed(new Runnable() { |
| public void run() { |
| switchUser(userId); |
| } |
| }, 100); |
| } |
| } |
| |
| @Override |
| public void onClick(View v) { |
| // Delete was clicked |
| postDelayed(new Runnable() { |
| public void run() { |
| if (mGuestUser != null) { |
| switchUser(0); |
| mUserManager.removeUser(mGuestUser.id); |
| mGuestUser = null; |
| refreshUsers(); |
| } |
| } |
| }, 100); |
| } |
| |
| private void switchUser(int userId) { |
| try { |
| WindowManagerGlobal.getWindowManagerService().lockNow(null); |
| ActivityManagerNative.getDefault().switchUser(userId); |
| finish(); |
| } catch (RemoteException e) { |
| Log.e(TAG, "Couldn't switch user.", e); |
| } |
| } |
| |
| private void switchToGuestUser() { |
| if (mGuestUser == null) { |
| // No guest user. Create one. |
| mGuestUser = mUserManager.createGuest(mContext, |
| mContext.getResources().getString(R.string.guest_nickname)); |
| } |
| switchUser(mGuestUser.id); |
| } |
| |
| private void finish() { |
| if (mFinishRunnable != null) { |
| mFinishRunnable.run(); |
| } |
| } |
| |
| @Override |
| public boolean onTouchEvent(MotionEvent event) { |
| if (event.getAction() == MotionEvent.ACTION_UP) { |
| finish(); |
| } |
| return true; |
| } |
| |
| @Override |
| protected void onVisibilityChanged(View changedView, int visibility) { |
| super.onVisibilityChanged(changedView, visibility); |
| // A gross hack to get rid of the switcher when the shade is collapsed. |
| if (visibility != VISIBLE) { |
| finish(); |
| } |
| } |
| |
| public void setFinishRunnable(Runnable finishRunnable) { |
| mFinishRunnable = finishRunnable; |
| } |
| |
| public void refreshUsers() { |
| mUserInfo.clear(); |
| mGuestUser = null; |
| List<UserInfo> users = mUserManager.getUsers(true); |
| for (UserInfo user : users) { |
| if (user.isGuest()) { |
| mGuestUser = user; |
| } else if (!user.isManagedProfile()) { |
| mUserInfo.add(user); |
| } |
| } |
| mAdapter.notifyDataSetChanged(); |
| } |
| |
| private class Adapter extends BaseAdapter { |
| |
| @Override |
| public int getCount() { |
| return mUserInfo.size() + (mGuestUserEnabled ? 1 : 0); |
| } |
| |
| @Override |
| public UserInfo getItem(int position) { |
| if (position < mUserInfo.size()) { |
| return mUserInfo.get(position); |
| } else { |
| return mGuestUser; |
| } |
| } |
| |
| @Override |
| public long getItemId(int position) { |
| if (position < mUserInfo.size()) { |
| return getItem(position).serialNumber; |
| } else { |
| return mGuestUser != null ? mGuestUser.serialNumber : -1; |
| } |
| } |
| |
| @Override |
| public View getView(int position, View convertView, ViewGroup parent) { |
| if (convertView == null || (!(convertView.getTag() instanceof ViewHolder))) { |
| convertView = createView(parent); |
| } |
| ViewHolder h = (ViewHolder) convertView.getTag(); |
| bindView(h, getItem(position)); |
| return convertView; |
| } |
| |
| private View createView(ViewGroup parent) { |
| View v = LayoutInflater.from(getContext()).inflate( |
| R.layout.user_switcher_item, parent, false); |
| ViewHolder h = new ViewHolder(); |
| h.name = (TextView) v.findViewById(R.id.user_name); |
| h.picture = (ImageView) v.findViewById(R.id.user_picture); |
| h.delete = (ImageView) v.findViewById(R.id.user_delete); |
| v.setTag(h); |
| return v; |
| } |
| |
| private void bindView(ViewHolder h, UserInfo item) { |
| if (item != null) { |
| h.name.setText(item.name); |
| h.picture.setImageBitmap(circularClip(mUserManager.getUserIcon(item.id))); |
| h.delete.setVisibility(item.isGuest() ? View.VISIBLE : View.GONE); |
| h.delete.setOnClickListener(UserSwitcherHostView.this); |
| if (item.isGuest()) { |
| h.picture.setImageResource(R.drawable.ic_account_circle); |
| } |
| } else { |
| h.name.setText(R.string.guest_new_guest); |
| h.picture.setImageResource(R.drawable.ic_account_circle); |
| h.delete.setVisibility(View.GONE); |
| } |
| } |
| |
| private Bitmap circularClip(Bitmap input) { |
| if (input == null) { |
| return null; |
| } |
| Bitmap output = Bitmap.createBitmap(input.getWidth(), |
| input.getHeight(), Bitmap.Config.ARGB_8888); |
| Canvas canvas = new Canvas(output); |
| final Paint paint = new Paint(); |
| paint.setShader(new BitmapShader(input, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP)); |
| paint.setAntiAlias(true); |
| canvas.drawCircle(input.getWidth() / 2, input.getHeight() / 2, input.getWidth() / 2, |
| paint); |
| return output; |
| } |
| |
| class ViewHolder { |
| TextView name; |
| ImageView picture; |
| ImageView delete; |
| } |
| } |
| } |