1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file 5 * except in compliance with the License. You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software distributed under the 10 * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 11 * KIND, either express or implied. See the License for the specific language governing 12 * permissions and limitations under the License. 13 */ 14 15 package com.android.settings.webview; 16 17 import android.content.Context; 18 import android.content.pm.PackageInfo; 19 import android.support.v7.preference.Preference; 20 import android.support.v7.preference.PreferenceScreen; 21 22 import com.android.settings.applications.defaultapps.DefaultAppInfo; 23 import com.android.settings.applications.defaultapps.DefaultAppPreferenceController; 24 25 public class WebViewAppPreferenceController extends DefaultAppPreferenceController { 26 27 private static final String WEBVIEW_APP_KEY = "select_webview_provider"; 28 29 private final Context mContext; 30 private final WebViewUpdateServiceWrapper mWebViewUpdateServiceWrapper; 31 private Preference mPreference; 32 WebViewAppPreferenceController(Context context)33 public WebViewAppPreferenceController(Context context) { 34 this(context, new WebViewUpdateServiceWrapper()); 35 } 36 WebViewAppPreferenceController(Context context, WebViewUpdateServiceWrapper webviewUpdateServiceWrapper)37 public WebViewAppPreferenceController(Context context, 38 WebViewUpdateServiceWrapper webviewUpdateServiceWrapper) { 39 super(context); 40 mContext = context; 41 mWebViewUpdateServiceWrapper = webviewUpdateServiceWrapper; 42 } 43 44 @Override getDefaultAppInfo()45 public DefaultAppInfo getDefaultAppInfo() { 46 PackageInfo currentPackage = mWebViewUpdateServiceWrapper.getCurrentWebViewPackage(); 47 return new DefaultAppInfo(mPackageManager, 48 currentPackage == null ? null : currentPackage.applicationInfo); 49 } 50 51 @Override displayPreference(PreferenceScreen screen)52 public void displayPreference(PreferenceScreen screen) { 53 super.displayPreference(screen); 54 if (isAvailable()) { 55 mPreference = screen.findPreference(WEBVIEW_APP_KEY); 56 } 57 } 58 59 @Override getPreferenceKey()60 public String getPreferenceKey() { 61 return WEBVIEW_APP_KEY; 62 } 63 64 @Override isAvailable()65 public boolean isAvailable() { 66 return true; 67 } 68 enablePreference(boolean enabled)69 public void enablePreference(boolean enabled) { 70 if (isAvailable()) { 71 mPreference.setEnabled(enabled); 72 } 73 } 74 } 75