1/*
2 * Copyright (C) 2011 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.systemui.usb;
18
19import android.app.AlertDialog;
20import android.content.ActivityNotFoundException;
21import android.content.DialogInterface;
22import android.content.Intent;
23import android.hardware.usb.UsbAccessory;
24import android.hardware.usb.UsbManager;
25import android.net.Uri;
26import android.os.Bundle;
27import android.os.UserHandle;
28import android.util.Log;
29
30import com.android.internal.app.AlertActivity;
31import com.android.internal.app.AlertController;
32import com.android.systemui.R;
33
34/**
35 * If the attached USB accessory has a URL associated with it, and that URL is valid,
36 * show this dialog to the user to allow them to optionally visit that URL for more
37 * information or software downloads.
38 * Otherwise (no valid URL) this activity does nothing at all, finishing immediately.
39 */
40public class UsbAccessoryUriActivity extends AlertActivity
41        implements DialogInterface.OnClickListener {
42
43    private static final String TAG = "UsbAccessoryUriActivity";
44
45    private UsbAccessory mAccessory;
46    private Uri mUri;
47
48    @Override
49    public void onCreate(Bundle icicle) {
50       super.onCreate(icicle);
51
52       Intent intent = getIntent();
53        mAccessory = (UsbAccessory)intent.getParcelableExtra(UsbManager.EXTRA_ACCESSORY);
54        String uriString = intent.getStringExtra("uri");
55        mUri = (uriString == null ? null : Uri.parse(uriString));
56
57        // sanity check before displaying dialog
58        if (mUri == null) {
59            Log.e(TAG, "could not parse Uri " + uriString);
60            finish();
61            return;
62        }
63        String scheme = mUri.getScheme();
64        if (!"http".equals(scheme) && !"https".equals(scheme)) {
65            Log.e(TAG, "Uri not http or https: " + mUri);
66            finish();
67            return;
68        }
69
70        final AlertController.AlertParams ap = mAlertParams;
71        ap.mTitle = mAccessory.getDescription();
72        if (ap.mTitle == null || ap.mTitle.length() == 0) {
73            ap.mTitle = getString(R.string.title_usb_accessory);
74        }
75        ap.mMessage = getString(R.string.usb_accessory_uri_prompt, mUri);
76        ap.mPositiveButtonText = getString(R.string.label_view);
77        ap.mNegativeButtonText = getString(android.R.string.cancel);
78        ap.mPositiveButtonListener = this;
79        ap.mNegativeButtonListener = this;
80
81        setupAlert();
82    }
83
84    public void onClick(DialogInterface dialog, int which) {
85        if (which == AlertDialog.BUTTON_POSITIVE) {
86            // launch the browser
87            Intent intent = new Intent(Intent.ACTION_VIEW, mUri);
88            intent.addCategory(Intent.CATEGORY_BROWSABLE);
89            intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
90            try {
91                startActivityAsUser(intent, UserHandle.CURRENT);
92            } catch (ActivityNotFoundException e) {
93                Log.e(TAG, "startActivity failed for " + mUri);
94            }
95        }
96        finish();
97    }
98}
99