1/*
2 * Copyright (C) 2014 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.settings;
18
19import android.content.Context;
20import android.content.DialogInterface;
21import android.content.Intent;
22import android.net.NetworkScoreManager;
23import android.net.NetworkScorerAppManager;
24import android.net.NetworkScorerAppManager.NetworkScorerAppData;
25import android.os.Bundle;
26import android.text.TextUtils;
27import android.util.Log;
28
29import com.android.internal.app.AlertActivity;
30import com.android.internal.app.AlertController;
31
32/**
33 * Dialog to allow a user to select a new network scorer.
34 *
35 * <p>Finishes with {@link #RESULT_CANCELED} in all circumstances unless the scorer is successfully
36 * changed or was already set to the new value (in which case it finishes with {@link #RESULT_OK}).
37 */
38public final class ActiveNetworkScorerDialog extends AlertActivity implements
39        DialogInterface.OnClickListener {
40    private static final String TAG = "ActiveNetScorerDlg";
41
42    private String mNewPackageName;
43
44    @Override
45    protected void onCreate(Bundle savedInstanceState) {
46        super.onCreate(savedInstanceState);
47
48        Intent intent = getIntent();
49        mNewPackageName = intent.getStringExtra(NetworkScoreManager.EXTRA_PACKAGE_NAME);
50
51        if (!buildDialog()) {
52            finish();
53        }
54    }
55
56    @Override
57    public void onClick(DialogInterface dialog, int which) {
58        switch (which) {
59            case BUTTON_POSITIVE:
60                NetworkScoreManager nsm =
61                    (NetworkScoreManager) getSystemService(Context.NETWORK_SCORE_SERVICE);
62                if (nsm.setActiveScorer(mNewPackageName)) {
63                    setResult(RESULT_OK);
64                }
65                break;
66            case BUTTON_NEGATIVE:
67                break;
68        }
69    }
70
71    private boolean buildDialog() {
72        NetworkScorerAppData newScorer = NetworkScorerAppManager.getScorer(this, mNewPackageName);
73        if (newScorer == null) {
74            Log.e(TAG, "New package " + mNewPackageName + " is not a valid scorer.");
75            return false;
76        }
77
78        NetworkScorerAppData oldScorer = NetworkScorerAppManager.getActiveScorer(this);
79        if (oldScorer != null && TextUtils.equals(oldScorer.mPackageName, mNewPackageName)) {
80            Log.i(TAG, "New package " + mNewPackageName + " is already the active scorer.");
81            // Set RESULT_OK to indicate to the caller that the "switch" was successful.
82            setResult(RESULT_OK);
83            return false;
84        }
85
86        // Compose dialog.
87        CharSequence newName = newScorer.mScorerName;
88        final AlertController.AlertParams p = mAlertParams;
89        p.mTitle = getString(R.string.network_scorer_change_active_dialog_title);
90        if (oldScorer != null) {
91            p.mMessage = getString(R.string.network_scorer_change_active_dialog_text, newName,
92                    oldScorer.mScorerName);
93        } else {
94            p.mMessage = getString(R.string.network_scorer_change_active_no_previous_dialog_text,
95                    newName);
96        }
97        p.mPositiveButtonText = getString(R.string.yes);
98        p.mNegativeButtonText = getString(R.string.no);
99        p.mPositiveButtonListener = this;
100        p.mNegativeButtonListener = this;
101        setupAlert();
102
103        return true;
104    }
105}
106