1/*
2 * Copyright (C) 2010 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.example.android.apis.view;
18
19import com.example.android.apis.R;
20
21import android.content.Context;
22import android.util.AttributeSet;
23import android.view.View;
24import android.view.ViewGroup;
25
26/**
27 * This view is part of the {@link SecureView} demonstration activity.
28 *
29 * This view is constructed in such a way as to obscure the buttons and descriptive
30 * text of the activity in a poor attempt to fool the user into clicking on the buttons
31 * despite the activity telling the user that they may be harmful.
32 */
33public class SecureViewOverlay extends ViewGroup {
34    private SecureView mActivity;
35
36    public SecureViewOverlay(Context context, AttributeSet attrs) {
37        super(context, attrs);
38    }
39
40    public void setActivityToSpoof(SecureView activity) {
41        this.mActivity = activity;
42    }
43
44    @Override
45    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
46        measureChildren(widthMeasureSpec, heightMeasureSpec);
47
48        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
49    }
50
51    @Override
52    protected void onLayout(boolean changed, int l, int t, int r, int b) {
53        spoofLayout(findViewById(R.id.secure_view_overlay_description),
54                mActivity.findViewById(R.id.secure_view_description));
55        spoofLayout(findViewById(R.id.secure_view_overlay_button1),
56                mActivity.findViewById(R.id.secure_view_unsecure_button));
57        spoofLayout(findViewById(R.id.secure_view_overlay_button2),
58                mActivity.findViewById(R.id.secure_view_builtin_secure_button));
59        spoofLayout(findViewById(R.id.secure_view_overlay_button3),
60                mActivity.findViewById(R.id.secure_view_custom_secure_button));
61    }
62
63    private void spoofLayout(View spoof, View original) {
64        final int[] globalPos = new int[2];
65        getLocationOnScreen(globalPos);
66        int x = globalPos[0];
67        int y = globalPos[1];
68
69        original.getLocationOnScreen(globalPos);
70        x = globalPos[0] - x;
71        y = globalPos[1] - y;
72        spoof.layout(x, y, x + original.getWidth(), y + original.getHeight());
73    }
74}
75