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      1 /*
      2  * Copyright (C) 2015 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.dialog;
     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.util.Log;
     24 import android.view.LayoutInflater;
     25 import android.view.View;
     26 import android.view.ViewGroup;
     27 import android.view.ViewGroup.LayoutParams;
     28 import android.webkit.WebView;
     29 import android.webkit.WebViewClient;
     30 
     31 /**
     32  * A DialogFragment that shows a web view.
     33  */
     34 public class WebDialogFragment extends SafeDismissDialogFragment {
     35     private static final String TAG = "WebDialogFragment";
     36     private static final String URL = "URL";
     37     private static final String TITLE = "TITLE";
     38     private static final String TRACKER_LABEL = "TRACKER_LABEL";
     39 
     40     private WebView mWebView;
     41     private String mTrackerLabel;
     42 
     43     /**
     44      * Create a new WebDialogFragment to show a particular web page.
     45      *
     46      * @param url   The URL of the content to show.
     47      * @param title Optional title for the dialog.
     48      */
     49     public static WebDialogFragment newInstance(String url, @Nullable String title,
     50             String trackerLabel) {
     51         WebDialogFragment f = new WebDialogFragment();
     52         Bundle args = new Bundle();
     53         args.putString(URL, url);
     54         args.putString(TITLE, title);
     55         args.putString(TRACKER_LABEL, trackerLabel);
     56         f.setArguments(args);
     57         return f;
     58     }
     59 
     60     @Override
     61     public void onCreate(Bundle savedInstanceState) {
     62         super.onCreate(savedInstanceState);
     63         String title = getArguments().getString(TITLE);
     64         mTrackerLabel = getArguments().getString(TRACKER_LABEL);
     65         int style = TextUtils.isEmpty(title) ? DialogFragment.STYLE_NO_TITLE
     66                 : DialogFragment.STYLE_NORMAL;
     67         setStyle(style, 0);
     68     }
     69 
     70     @Nullable
     71     @Override
     72     public View onCreateView(LayoutInflater inflater, ViewGroup container,
     73             Bundle savedInstanceState) {
     74         String title = getArguments().getString(TITLE);
     75         getDialog().setTitle(title);
     76 
     77         mWebView = new WebView(getActivity());
     78         mWebView.setWebViewClient(new WebViewClient());
     79         String url = getArguments().getString(URL);
     80         mWebView.loadUrl(url);
     81         Log.d(TAG, "Loading web content from " + url);
     82 
     83         return mWebView;
     84     }
     85 
     86     @Override
     87     public void onDestroyView() {
     88         super.onDestroyView();
     89         if (mWebView != null) {
     90             mWebView.destroy();
     91         }
     92     }
     93 
     94     @Override
     95     public void onStart() {
     96         super.onStart();
     97         // Ensure the dialog is fullscreen, even if the webview doesn't have its content yet.
     98         getDialog().getWindow().setLayout(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
     99     }
    100 
    101     @Override
    102     public String getTrackerLabel() {
    103         return mTrackerLabel;
    104     }
    105 }
    106