1 /* 2 * Copyright (C) 2019 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.documentsui.picker; 18 19 import android.app.Dialog; 20 import android.content.DialogInterface; 21 import android.content.pm.ApplicationInfo; 22 import android.content.pm.PackageManager; 23 import android.net.Uri; 24 import android.os.Bundle; 25 import android.provider.DocumentsContract; 26 import android.text.TextUtils; 27 28 import androidx.fragment.app.DialogFragment; 29 import androidx.fragment.app.Fragment; 30 import androidx.fragment.app.FragmentManager; 31 import androidx.fragment.app.FragmentTransaction; 32 33 import com.android.documentsui.BaseActivity; 34 import com.android.documentsui.R; 35 import com.android.documentsui.base.DocumentInfo; 36 import com.android.documentsui.base.Shared; 37 38 import com.google.android.material.dialog.MaterialAlertDialogBuilder; 39 40 /** 41 * Used to confirm with user that it's OK to overwrite an existing file. 42 */ 43 public class ConfirmFragment extends DialogFragment { 44 45 private static final String TAG = "ConfirmFragment"; 46 47 public static final String CONFIRM_TYPE = "type"; 48 public static final int TYPE_OVERWRITE = 1; 49 public static final int TYPE_OEPN_TREE = 2; 50 51 private ActionHandler<PickActivity> mActions; 52 private DocumentInfo mTarget; 53 private int mType; 54 55 @Override onActivityCreated(Bundle savedInstanceState)56 public void onActivityCreated(Bundle savedInstanceState) { 57 super.onActivityCreated(savedInstanceState); 58 59 mActions = ((PickActivity) getActivity()).getInjector().actions; 60 } 61 62 @Override onCreateDialog(Bundle savedInstanceState)63 public Dialog onCreateDialog(Bundle savedInstanceState) { 64 Bundle arg = (getArguments() != null) ? getArguments() : savedInstanceState; 65 66 mTarget = arg.getParcelable(Shared.EXTRA_DOC); 67 mType = arg.getInt(CONFIRM_TYPE); 68 final PickResult pickResult = ((PickActivity) getActivity()).getInjector().pickResult; 69 70 final MaterialAlertDialogBuilder builder = new MaterialAlertDialogBuilder(getActivity()); 71 switch (mType) { 72 case TYPE_OVERWRITE: 73 String message = String.format( 74 getString(R.string.overwrite_file_confirmation_message), 75 mTarget.displayName); 76 builder.setMessage(message); 77 builder.setPositiveButton( 78 android.R.string.ok, 79 (DialogInterface dialog, int id) -> { 80 pickResult.increaseActionCount(); 81 mActions.finishPicking(mTarget.derivedUri); 82 }); 83 break; 84 case TYPE_OEPN_TREE: 85 final Uri uri = DocumentsContract.buildTreeDocumentUri( 86 mTarget.authority, mTarget.documentId); 87 final BaseActivity activity = (BaseActivity) getActivity(); 88 final String target = activity.getCurrentTitle(); 89 final String location = activity.getCurrentRoot().title; 90 final String text = getString(R.string.open_tree_dialog_title, target, location); 91 message = getString(R.string.open_tree_dialog_message, 92 getAppName(getActivity().getCallingPackage())); 93 94 builder.setTitle(text); 95 builder.setMessage(message); 96 builder.setPositiveButton( 97 R.string.allow, 98 (DialogInterface dialog, int id) -> { 99 pickResult.increaseActionCount(); 100 mActions.finishPicking(uri); 101 }); 102 break; 103 104 } 105 builder.setNegativeButton(android.R.string.cancel, 106 (DialogInterface dialog, int id) -> pickResult.increaseActionCount()); 107 108 return builder.create(); 109 } 110 111 @Override onSaveInstanceState(Bundle outState)112 public void onSaveInstanceState(Bundle outState) { 113 super.onSaveInstanceState(outState); 114 115 outState.putParcelable(Shared.EXTRA_DOC, mTarget); 116 outState.putInt(CONFIRM_TYPE, mType); 117 } 118 getAppName(String packageName)119 private String getAppName(String packageName) { 120 final String anonymous = getString(R.string.anonymous_application); 121 if (TextUtils.isEmpty(packageName)) { 122 return anonymous; 123 } 124 125 final PackageManager pm = getContext().getPackageManager(); 126 ApplicationInfo ai; 127 try { 128 ai = pm.getApplicationInfo(packageName, 0); 129 } catch (final PackageManager.NameNotFoundException e) { 130 return anonymous; 131 } 132 133 CharSequence result = pm.getApplicationLabel(ai); 134 return TextUtils.isEmpty(result) ? anonymous : result.toString(); 135 } 136 show(FragmentManager fm, DocumentInfo overwriteTarget, int type)137 public static void show(FragmentManager fm, DocumentInfo overwriteTarget, int type) { 138 Bundle arg = new Bundle(); 139 arg.putParcelable(Shared.EXTRA_DOC, overwriteTarget); 140 arg.putInt(CONFIRM_TYPE, type); 141 142 FragmentTransaction ft = fm.beginTransaction(); 143 Fragment f = new ConfirmFragment(); 144 f.setArguments(arg); 145 ft.add(f, TAG); 146 ft.commitAllowingStateLoss(); 147 } 148 } 149