KeyguardMultiUserSelectorView.java revision 25a272a9f6323f6a3513bb522d45e839449878ce 
1/*
2 * Copyright (C) 2012 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.internal.policy.impl.keyguard;
18
19import android.app.ActivityManagerNative;
20import android.content.Context;
21import android.content.pm.UserInfo;
22import android.os.RemoteException;
23import android.util.AttributeSet;
24import android.util.Log;
25import android.view.MotionEvent;
26import android.view.View;
27import android.view.ViewGroup;
28import android.widget.FrameLayout;
29
30import com.android.internal.R;
31
32import java.util.ArrayList;
33import java.util.Collection;
34import java.util.Collections;
35import java.util.Comparator;
36
37public class KeyguardMultiUserSelectorView extends FrameLayout implements View.OnClickListener {
38    private static final String TAG = "KeyguardMultiUserSelectorView";
39
40    private ViewGroup mUsersGrid;
41    private KeyguardMultiUserAvatar mActiveUserAvatar;
42    private KeyguardHostView.UserSwitcherCallback mCallback;
43    private static final int FADE_OUT_ANIMATION_DURATION = 100;
44
45    public KeyguardMultiUserSelectorView(Context context) {
46        this(context, null, 0);
47    }
48
49    public KeyguardMultiUserSelectorView(Context context, AttributeSet attrs) {
50        this(context, attrs, 0);
51    }
52
53    public KeyguardMultiUserSelectorView(Context context, AttributeSet attrs, int defStyle) {
54        super(context, attrs, defStyle);
55    }
56
57    protected void onFinishInflate () {
58        mUsersGrid = (ViewGroup) findViewById(R.id.keyguard_users_grid);
59        mUsersGrid.removeAllViews();
60        setClipChildren(false);
61        setClipToPadding(false);
62
63    }
64
65    public void setCallback(KeyguardHostView.UserSwitcherCallback callback) {
66        mCallback = callback;
67    }
68
69    public void addUsers(Collection<UserInfo> userList) {
70        UserInfo activeUser;
71        try {
72            activeUser = ActivityManagerNative.getDefault().getCurrentUser();
73        } catch (RemoteException re) {
74            activeUser = null;
75        }
76
77        ArrayList<UserInfo> users = new ArrayList<UserInfo>(userList);
78        Collections.sort(users, mOrderAddedComparator);
79
80        for (UserInfo user: users) {
81            KeyguardMultiUserAvatar uv = createAndAddUser(user);
82            if (user.id == activeUser.id) {
83                mActiveUserAvatar = uv;
84            }
85            uv.setActive(false, false, null);
86        }
87        mActiveUserAvatar.lockPressed(true);
88    }
89
90    public void finalizeActiveUserView(boolean animate) {
91        if (animate) {
92            getHandler().postDelayed(new Runnable() {
93                    @Override
94                        public void run() {
95                        finalizeActiveUserNow(true);
96                    }
97                }, 500);
98        } else {
99            finalizeActiveUserNow(animate);
100        }
101    }
102
103    void finalizeActiveUserNow(boolean animate) {
104        mActiveUserAvatar.lockPressed(false);
105        mActiveUserAvatar.setActive(true, animate, null);
106    }
107
108    Comparator<UserInfo> mOrderAddedComparator = new Comparator<UserInfo>() {
109        @Override
110        public int compare(UserInfo lhs, UserInfo rhs) {
111            return (lhs.serialNumber - rhs.serialNumber);
112        }
113    };
114
115    private KeyguardMultiUserAvatar createAndAddUser(UserInfo user) {
116        KeyguardMultiUserAvatar uv = KeyguardMultiUserAvatar.fromXml(
117                R.layout.keyguard_multi_user_avatar, mContext, this, user);
118        mUsersGrid.addView(uv);
119        return uv;
120    }
121
122    @Override
123    public boolean onInterceptTouchEvent(MotionEvent event) {
124        if(event.getActionMasked() != MotionEvent.ACTION_CANCEL && mCallback != null) {
125            mCallback.userActivity();
126        }
127        return false;
128    }
129
130    private void setAllClickable(boolean clickable)
131    {
132        for(int i = 0; i < mUsersGrid.getChildCount(); i++) {
133            View v = mUsersGrid.getChildAt(i);
134            v.setClickable(clickable);
135            v.setPressed(false);
136        }
137    }
138
139    @Override
140    public void onClick(View v) {
141        if (!(v instanceof KeyguardMultiUserAvatar)) return;
142        final KeyguardMultiUserAvatar avatar = (KeyguardMultiUserAvatar) v;
143        if (avatar.isClickable()) { // catch race conditions
144            if (mActiveUserAvatar == avatar) {
145                // If they click the currently active user, show the unlock hint
146                mCallback.showUnlockHint();
147                return;
148            } else {
149                // Reset the previously active user to appear inactive
150                mCallback.hideSecurityView(FADE_OUT_ANIMATION_DURATION);
151                setAllClickable(false);
152                avatar.lockPressed(true);
153                mActiveUserAvatar.setActive(false, true, new Runnable() {
154                    @Override
155                    public void run() {
156                        mActiveUserAvatar = avatar;
157                        if (this.getClass().getName().contains("internal")) {
158                            try {
159                                ActivityManagerNative.getDefault()
160                                        .switchUser(avatar.getUserInfo().id);
161                            } catch (RemoteException re) {
162                                Log.e(TAG, "Couldn't switch user " + re);
163                            }
164                        } else {
165                            setAllClickable(true);
166                        }
167                    }
168                });
169            }
170        }
171    }
172}
173