1 /* 2 * Copyright (C) 2018 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.print; 16 17 import android.content.Context; 18 import android.print.PrintJob; 19 import android.print.PrintJobId; 20 import android.print.PrintManager; 21 import android.util.Log; 22 23 import androidx.preference.Preference; 24 import androidx.preference.PreferenceScreen; 25 26 import com.android.settings.core.BasePreferenceController; 27 import com.android.settingslib.core.lifecycle.LifecycleObserver; 28 import com.android.settingslib.core.lifecycle.events.OnStart; 29 import com.android.settingslib.core.lifecycle.events.OnStop; 30 31 public abstract class PrintJobPreferenceControllerBase extends BasePreferenceController implements 32 LifecycleObserver, OnStart, OnStop, PrintManager.PrintJobStateChangeListener { 33 private static final String TAG = "PrintJobPrefCtrlBase"; 34 35 private static final String EXTRA_PRINT_JOB_ID = "EXTRA_PRINT_JOB_ID"; 36 37 private final PrintManager mPrintManager; 38 protected Preference mPreference; 39 protected PrintJobSettingsFragment mFragment; 40 protected PrintJobId mPrintJobId; 41 PrintJobPreferenceControllerBase(Context context, String key)42 public PrintJobPreferenceControllerBase(Context context, String key) { 43 super(context, key); 44 mPrintManager = ((PrintManager) mContext.getSystemService( 45 Context.PRINT_SERVICE)).getGlobalPrintManagerForUser(mContext.getUserId()); 46 } 47 48 @Override onStart()49 public void onStart() { 50 mPrintManager.addPrintJobStateChangeListener(this); 51 updateUi(); 52 } 53 54 @Override onStop()55 public void onStop() { 56 mPrintManager.removePrintJobStateChangeListener(this); 57 } 58 59 @Override getAvailabilityStatus()60 public int getAvailabilityStatus() { 61 return AVAILABLE; 62 } 63 64 @Override onPrintJobStateChanged(PrintJobId printJobId)65 public void onPrintJobStateChanged(PrintJobId printJobId) { 66 updateUi(); 67 } 68 69 @Override displayPreference(PreferenceScreen screen)70 public void displayPreference(PreferenceScreen screen) { 71 super.displayPreference(screen); 72 mPreference = screen.findPreference(getPreferenceKey()); 73 } 74 init(PrintJobSettingsFragment fragment)75 public void init(PrintJobSettingsFragment fragment) { 76 mFragment = fragment; 77 processArguments(); 78 } 79 getPrintJob()80 protected PrintJob getPrintJob() { 81 return mPrintManager.getPrintJob(mPrintJobId); 82 } 83 updateUi()84 protected abstract void updateUi(); 85 processArguments()86 private void processArguments() { 87 String printJobId = mFragment.getArguments().getString(EXTRA_PRINT_JOB_ID); 88 if (printJobId == null) { 89 printJobId = mFragment.getActivity().getIntent().getStringExtra(EXTRA_PRINT_JOB_ID); 90 91 if (printJobId == null) { 92 Log.w(TAG, EXTRA_PRINT_JOB_ID + " not set"); 93 mFragment.finish(); 94 return; 95 } 96 } 97 mPrintJobId = PrintJobId.unflattenFromString(printJobId); 98 } 99 } 100