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.contacts.common;
18
19import com.android.i18n.phonenumbers.NumberParseException;
20import com.android.i18n.phonenumbers.PhoneNumberUtil;
21
22import android.content.Context;
23import android.content.Intent;
24import android.graphics.Rect;
25import android.net.Uri;
26import android.provider.ContactsContract;
27import android.telephony.PhoneNumberUtils;
28import android.text.TextUtils;
29import android.view.View;
30import android.widget.TextView;
31
32import com.android.contacts.common.model.account.AccountType;
33
34/**
35 * Shared static contact utility methods.
36 */
37public class MoreContactUtils {
38
39    private static final String WAIT_SYMBOL_AS_STRING = String.valueOf(PhoneNumberUtils.WAIT);
40
41    /**
42     * Returns true if two data with mimetypes which represent values in contact entries are
43     * considered equal for collapsing in the GUI. For caller-id, use
44     * {@link android.telephony.PhoneNumberUtils#compare(android.content.Context, String, String)}
45     * instead
46     */
47    public static boolean shouldCollapse(CharSequence mimetype1, CharSequence data1,
48              CharSequence mimetype2, CharSequence data2) {
49        // different mimetypes? don't collapse
50        if (!TextUtils.equals(mimetype1, mimetype2)) return false;
51
52        // exact same string? good, bail out early
53        if (TextUtils.equals(data1, data2)) return true;
54
55        // so if either is null, these two must be different
56        if (data1 == null || data2 == null) return false;
57
58        // if this is not about phone numbers, we know this is not a match (of course, some
59        // mimetypes could have more sophisticated matching is the future, e.g. addresses)
60        if (!TextUtils.equals(ContactsContract.CommonDataKinds.Phone.CONTENT_ITEM_TYPE,
61                mimetype1)) {
62            return false;
63        }
64
65        return shouldCollapsePhoneNumbers(data1.toString(), data2.toString());
66    }
67
68    private static boolean shouldCollapsePhoneNumbers(String number1, String number2) {
69        // Now do the full phone number thing. split into parts, separated by waiting symbol
70        // and compare them individually
71        final String[] dataParts1 = number1.split(WAIT_SYMBOL_AS_STRING);
72        final String[] dataParts2 = number2.split(WAIT_SYMBOL_AS_STRING);
73        if (dataParts1.length != dataParts2.length) return false;
74        final PhoneNumberUtil util = PhoneNumberUtil.getInstance();
75        for (int i = 0; i < dataParts1.length; i++) {
76            // Match phone numbers represented by keypad letters, in which case prefer the
77            // phone number with letters.
78            final String dataPart1 = PhoneNumberUtils.convertKeypadLettersToDigits(dataParts1[i]);
79            final String dataPart2 = dataParts2[i];
80
81            // substrings equal? shortcut, don't parse
82            if (TextUtils.equals(dataPart1, dataPart2)) continue;
83
84            // do a full parse of the numbers
85            final PhoneNumberUtil.MatchType result = util.isNumberMatch(dataPart1, dataPart2);
86            switch (result) {
87                case NOT_A_NUMBER:
88                    // don't understand the numbers? let's play it safe
89                    return false;
90                case NO_MATCH:
91                    return false;
92                case EXACT_MATCH:
93                    break;
94                case NSN_MATCH:
95                    try {
96                        // For NANP phone numbers, match when one has +1 and the other does not.
97                        // In this case, prefer the +1 version.
98                        if (util.parse(dataPart1, null).getCountryCode() == 1) {
99                            // At this point, the numbers can be either case 1 or 2 below....
100                            //
101                            // case 1)
102                            // +14155551212    <--- country code 1
103                            //  14155551212    <--- 1 is trunk prefix, not country code
104                            //
105                            // and
106                            //
107                            // case 2)
108                            // +14155551212
109                            //   4155551212
110                            //
111                            // From b/7519057, case 2 needs to be equal.  But also that bug, case 3
112                            // below should not be equal.
113                            //
114                            // case 3)
115                            // 14155551212
116                            //  4155551212
117                            //
118                            // So in order to make sure transitive equality is valid, case 1 cannot
119                            // be equal.  Otherwise, transitive equality breaks and the following
120                            // would all be collapsed:
121                            //   4155551212  |
122                            //  14155551212  |---->   +14155551212
123                            // +14155551212  |
124                            //
125                            // With transitive equality, the collapsed values should be:
126                            //   4155551212  |         14155551212
127                            //  14155551212  |---->   +14155551212
128                            // +14155551212  |
129
130                            // Distinguish between case 1 and 2 by checking for trunk prefix '1'
131                            // at the start of number 2.
132                            if (dataPart2.trim().charAt(0) == '1') {
133                                // case 1
134                                return false;
135                            }
136                            break;
137                        }
138                    } catch (NumberParseException e) {
139                        // This is the case where the first number does not have a country code.
140                        // examples:
141                        // (123) 456-7890   &   123-456-7890  (collapse)
142                        // 0049 (8092) 1234   &   +49/80921234  (unit test says do not collapse)
143
144                        // Check the second number.  If it also does not have a country code, then
145                        // we should collapse.  If it has a country code, then it's a different
146                        // number and we should not collapse (this conclusion is based on an
147                        // existing unit test).
148                        try {
149                            util.parse(dataPart2, null);
150                        } catch (NumberParseException e2) {
151                            // Number 2 also does not have a country.  Collapse.
152                            break;
153                        }
154                    }
155                    return false;
156                case SHORT_NSN_MATCH:
157                    return false;
158                default:
159                    throw new IllegalStateException("Unknown result value from phone number " +
160                            "library");
161            }
162        }
163        return true;
164    }
165
166    /**
167     * Returns the {@link android.graphics.Rect} with left, top, right, and bottom coordinates
168     * that are equivalent to the given {@link android.view.View}'s bounds. This is equivalent to
169     * how the target {@link android.graphics.Rect} is calculated in
170     * {@link android.provider.ContactsContract.QuickContact#showQuickContact}.
171     */
172    public static Rect getTargetRectFromView(Context context, View view) {
173        final float appScale = context.getResources().getCompatibilityInfo().applicationScale;
174        final int[] pos = new int[2];
175        view.getLocationOnScreen(pos);
176
177        final Rect rect = new Rect();
178        rect.left = (int) (pos[0] * appScale + 0.5f);
179        rect.top = (int) (pos[1] * appScale + 0.5f);
180        rect.right = (int) ((pos[0] + view.getWidth()) * appScale + 0.5f);
181        rect.bottom = (int) ((pos[1] + view.getHeight()) * appScale + 0.5f);
182        return rect;
183    }
184
185    /**
186     * Returns a header view based on the R.layout.list_separator, where the
187     * containing {@link android.widget.TextView} is set using the given textResourceId.
188     */
189    public static View createHeaderView(Context context, int textResourceId) {
190        View view = View.inflate(context, R.layout.list_separator, null);
191        TextView textView = (TextView) view.findViewById(R.id.title);
192        textView.setText(context.getString(textResourceId));
193        textView.setAllCaps(true);
194        return view;
195    }
196
197    /**
198     * Returns the intent to launch for the given invitable account type and contact lookup URI.
199     * This will return null if the account type is not invitable (i.e. there is no
200     * {@link AccountType#getInviteContactActivityClassName()} or
201     * {@link AccountType#syncAdapterPackageName}).
202     */
203    public static Intent getInvitableIntent(AccountType accountType, Uri lookupUri) {
204        String syncAdapterPackageName = accountType.syncAdapterPackageName;
205        String className = accountType.getInviteContactActivityClassName();
206        if (TextUtils.isEmpty(syncAdapterPackageName) || TextUtils.isEmpty(className)) {
207            return null;
208        }
209        Intent intent = new Intent();
210        intent.setClassName(syncAdapterPackageName, className);
211
212        intent.setAction(ContactsContract.Intents.INVITE_CONTACT);
213
214        // Data is the lookup URI.
215        intent.setData(lookupUri);
216        return intent;
217    }
218}
219