UsbAccessoryUriActivity.java revision ad5f83e91b6812a6dee4fea7646fa9061d9f9597 
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.Activity;
20import android.app.AlertDialog;
21import android.content.ActivityNotFoundException;
22import android.content.Context;
23import android.content.DialogInterface;
24import android.content.Intent;
25import android.net.Uri;
26import android.hardware.usb.UsbAccessory;
27import android.hardware.usb.UsbManager;
28import android.os.Bundle;
29import android.util.Log;
30
31import com.android.internal.app.AlertActivity;
32import com.android.internal.app.AlertController;
33
34import com.android.systemui.R;
35
36/**
37 * If the attached USB accessory has a URL associated with it, and that URL is valid,
38 * show this dialog to the user to allow them to optionally visit that URL for more
39 * information or software downloads.
40 * Otherwise (no valid URL) this activity does nothing at all, finishing immediately.
41 */
42public class UsbAccessoryUriActivity extends AlertActivity
43        implements DialogInterface.OnClickListener {
44
45    private static final String TAG = "UsbAccessoryUriActivity";
46
47    private UsbAccessory mAccessory;
48    private Uri mUri;
49
50    @Override
51    public void onCreate(Bundle icicle) {
52       super.onCreate(icicle);
53
54       Intent intent = getIntent();
55        mAccessory = (UsbAccessory)intent.getParcelableExtra(UsbManager.EXTRA_ACCESSORY);
56        String uriString = intent.getStringExtra("uri");
57        mUri = (uriString == null ? null : Uri.parse(uriString));
58
59        // sanity check before displaying dialog
60        if (mUri == null) {
61            Log.e(TAG, "could not parse Uri " + uriString);
62            finish();
63            return;
64        }
65        String scheme = mUri.getScheme();
66        if (!"http".equals(scheme) && !"https".equals(scheme)) {
67            Log.e(TAG, "Uri not http or https: " + mUri);
68            finish();
69            return;
70        }
71
72        final AlertController.AlertParams ap = mAlertParams;
73        ap.mTitle = mAccessory.getDescription();
74        if (ap.mTitle == null || ap.mTitle.length() == 0) {
75            ap.mTitle = getString(R.string.title_usb_accessory);
76        }
77        ap.mMessage = getString(R.string.usb_accessory_uri_prompt, mUri);
78        ap.mPositiveButtonText = getString(R.string.label_view);
79        ap.mNegativeButtonText = getString(android.R.string.cancel);
80        ap.mPositiveButtonListener = this;
81        ap.mNegativeButtonListener = this;
82
83        setupAlert();
84    }
85
86    public void onClick(DialogInterface dialog, int which) {
87        if (which == AlertDialog.BUTTON_POSITIVE) {
88            // launch the browser
89            Intent intent = new Intent(Intent.ACTION_VIEW, mUri);
90            intent.addCategory(Intent.CATEGORY_BROWSABLE);
91            intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
92            try {
93                startActivity(intent);
94            } catch (ActivityNotFoundException e) {
95                Log.e(TAG, "startActivity failed for " + mUri);
96            }
97        }
98        finish();
99    }
100}
101