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      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      */
     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
     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
     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
     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
     93     public String getTrackerLabel() {
     94         return mTrackerLabel;
     95     }
     96 }
     97