1 /*
2  * Copyright (C) 2017 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 
17 package com.android.tv.license;
18 
19 import android.app.DialogFragment;
20 import android.os.Bundle;
21 import android.support.annotation.Nullable;
22 import android.text.TextUtils;
23 import android.text.method.ScrollingMovementMethod;
24 import android.view.LayoutInflater;
25 import android.view.View;
26 import android.view.ViewGroup;
27 import android.view.ViewGroup.LayoutParams;
28 import android.widget.TextView;
29 import com.android.tv.R;
30 import com.android.tv.dialog.SafeDismissDialogFragment;
31 
32 /** A DialogFragment that shows a License in a text view. */
33 public class LicenseDialogFragment extends SafeDismissDialogFragment {
34     public static final String DIALOG_TAG = LicenseDialogFragment.class.getSimpleName();
35 
36     private static final String LICENSE = "LICENSE";
37 
38     private License mLicense;
39     private String mTrackerLabel;
40 
41     /**
42      * Create a new LicenseDialogFragment to show a particular license.
43      *
44      * @param license The License to show.
45      */
newInstance(License license)46     public static LicenseDialogFragment newInstance(License license) {
47         LicenseDialogFragment f = new LicenseDialogFragment();
48         Bundle args = new Bundle();
49         args.putParcelable(LICENSE, license);
50         f.setArguments(args);
51         return f;
52     }
53 
54     @Override
onCreate(Bundle savedInstanceState)55     public void onCreate(Bundle savedInstanceState) {
56         super.onCreate(savedInstanceState);
57         mLicense = getArguments().getParcelable(LICENSE);
58         String title = mLicense.getLibraryName();
59         mTrackerLabel = getArguments().getString(title + "_license");
60         int style =
61                 TextUtils.isEmpty(title)
62                         ? DialogFragment.STYLE_NO_TITLE
63                         : DialogFragment.STYLE_NORMAL;
64         setStyle(style, 0);
65     }
66 
67     @Nullable
68     @Override
onCreateView( LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)69     public View onCreateView(
70             LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
71         TextView textView = new TextView(getActivity());
72         String licenseText = Licenses.getLicenseText(getContext(), mLicense);
73         textView.setText(licenseText != null ? licenseText : "");
74         textView.setMovementMethod(new ScrollingMovementMethod());
75         int verticalOverscan =
76                 getResources().getDimensionPixelSize(R.dimen.vertical_overscan_safe_margin);
77         int horizontalOverscan =
78                 getResources().getDimensionPixelSize(R.dimen.horizontal_overscan_safe_margin);
79         textView.setPadding(
80                 horizontalOverscan, verticalOverscan, horizontalOverscan, verticalOverscan);
81         return textView;
82     }
83 
84     @Override
onStart()85     public void onStart() {
86         super.onStart();
87         // Ensure the dialog is fullscreen, even if the TextView doesn't have its content yet.
88         getDialog().getWindow().setLayout(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
89         getDialog().setTitle(mLicense.getLibraryName());
90     }
91 
92     @Override
getTrackerLabel()93     public String getTrackerLabel() {
94         return mTrackerLabel;
95     }
96 }
97