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.settings.applications.defaultapps; 18 19 import android.app.Activity; 20 import android.app.AlertDialog; 21 import android.app.Dialog; 22 import android.app.DialogFragment; 23 import android.app.Fragment; 24 import android.content.Context; 25 import android.content.DialogInterface; 26 import android.os.Bundle; 27 import android.text.TextUtils; 28 import android.util.Pair; 29 30 import com.android.internal.logging.nano.MetricsProto.MetricsEvent; 31 import com.android.settings.R; 32 import com.android.settings.core.instrumentation.InstrumentedDialogFragment; 33 import com.android.settings.widget.RadioButtonPickerFragment; 34 import com.android.settings.widget.RadioButtonPreference; 35 import com.android.settingslib.applications.DefaultAppInfo; 36 import com.android.settingslib.widget.CandidateInfo; 37 import com.android.settingslib.wrapper.PackageManagerWrapper; 38 39 /** 40 * A generic app picker fragment that shows a list of app as radio button group. 41 */ 42 public abstract class DefaultAppPickerFragment extends RadioButtonPickerFragment { 43 44 protected PackageManagerWrapper mPm; 45 46 @Override onAttach(Context context)47 public void onAttach(Context context) { 48 super.onAttach(context); 49 mPm = new PackageManagerWrapper(context.getPackageManager()); 50 } 51 52 @Override onRadioButtonClicked(RadioButtonPreference selected)53 public void onRadioButtonClicked(RadioButtonPreference selected) { 54 final String selectedKey = selected.getKey(); 55 final CharSequence confirmationMessage = getConfirmationMessage(getCandidate(selectedKey)); 56 final Activity activity = getActivity(); 57 if (TextUtils.isEmpty(confirmationMessage)) { 58 super.onRadioButtonClicked(selected); 59 } else if (activity != null) { 60 final DialogFragment fragment = 61 newConfirmationDialogFragment(selectedKey, confirmationMessage); 62 fragment.show(activity.getFragmentManager(), ConfirmationDialogFragment.TAG); 63 } 64 } 65 66 @Override onRadioButtonConfirmed(String selectedKey)67 protected void onRadioButtonConfirmed(String selectedKey) { 68 mMetricsFeatureProvider.action(getContext(), 69 MetricsEvent.ACTION_SETTINGS_UPDATE_DEFAULT_APP, 70 selectedKey, 71 Pair.create(MetricsEvent.FIELD_CONTEXT, getMetricsCategory())); 72 73 super.onRadioButtonConfirmed(selectedKey); 74 } 75 76 @Override bindPreferenceExtra(RadioButtonPreference pref, String key, CandidateInfo info, String defaultKey, String systemDefaultKey)77 public void bindPreferenceExtra(RadioButtonPreference pref, 78 String key, CandidateInfo info, String defaultKey, String systemDefaultKey) { 79 if (!(info instanceof DefaultAppInfo)) { 80 return; 81 } 82 if (TextUtils.equals(systemDefaultKey, key)) { 83 pref.setSummary(R.string.system_app); 84 } else if (!TextUtils.isEmpty(((DefaultAppInfo) info).summary)) { 85 pref.setSummary(((DefaultAppInfo) info).summary); 86 } 87 } 88 newConfirmationDialogFragment(String selectedKey, CharSequence confirmationMessage)89 protected ConfirmationDialogFragment newConfirmationDialogFragment(String selectedKey, 90 CharSequence confirmationMessage) { 91 final ConfirmationDialogFragment fragment = new ConfirmationDialogFragment(); 92 fragment.init(this, selectedKey, confirmationMessage); 93 return fragment; 94 } 95 getConfirmationMessage(CandidateInfo info)96 protected CharSequence getConfirmationMessage(CandidateInfo info) { 97 return null; 98 } 99 100 public static class ConfirmationDialogFragment extends InstrumentedDialogFragment 101 implements DialogInterface.OnClickListener { 102 103 public static final String TAG = "DefaultAppConfirm"; 104 public static final String EXTRA_KEY = "extra_key"; 105 public static final String EXTRA_MESSAGE = "extra_message"; 106 107 private DialogInterface.OnClickListener mCancelListener; 108 109 @Override getMetricsCategory()110 public int getMetricsCategory() { 111 return MetricsEvent.DEFAULT_APP_PICKER_CONFIRMATION_DIALOG; 112 } 113 114 /** 115 * Initializes the fragment. 116 * 117 * <p>Should be called after it's constructed. 118 */ init(DefaultAppPickerFragment parent, String key, CharSequence message)119 public void init(DefaultAppPickerFragment parent, String key, CharSequence message) { 120 final Bundle argument = new Bundle(); 121 argument.putString(EXTRA_KEY, key); 122 argument.putCharSequence(EXTRA_MESSAGE, message); 123 setArguments(argument); 124 setTargetFragment(parent, 0); 125 } 126 127 // TODO: add test case for cancelListener setCancelListener(DialogInterface.OnClickListener cancelListener)128 public void setCancelListener(DialogInterface.OnClickListener cancelListener) { 129 this.mCancelListener = cancelListener; 130 } 131 132 @Override onCreateDialog(Bundle savedInstanceState)133 public Dialog onCreateDialog(Bundle savedInstanceState) { 134 final Bundle bundle = getArguments(); 135 final AlertDialog.Builder builder = new AlertDialog.Builder(getActivity()) 136 .setMessage(bundle.getCharSequence(EXTRA_MESSAGE)) 137 .setPositiveButton(android.R.string.ok, this) 138 .setNegativeButton(android.R.string.cancel, mCancelListener); 139 return builder.create(); 140 } 141 142 @Override onClick(DialogInterface dialog, int which)143 public void onClick(DialogInterface dialog, int which) { 144 final Fragment fragment = getTargetFragment(); 145 if (fragment instanceof DefaultAppPickerFragment) { 146 final Bundle bundle = getArguments(); 147 ((DefaultAppPickerFragment) fragment).onRadioButtonConfirmed( 148 bundle.getString(EXTRA_KEY)); 149 } 150 } 151 } 152 } 153