| /* |
| * Copyright (C) 2013 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.printspooler; |
| |
| import android.app.Notification; |
| import android.app.NotificationManager; |
| import android.app.PendingIntent; |
| import android.content.BroadcastReceiver; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.os.Build; |
| import android.os.RemoteException; |
| import android.os.ServiceManager; |
| import android.os.UserHandle; |
| import android.print.IPrintManager; |
| import android.print.PrintJobInfo; |
| import android.print.PrintManager; |
| import android.util.Log; |
| |
| /** |
| * This class is responsible for updating the print notifications |
| * based on print job state transitions. |
| */ |
| public class NotificationController { |
| public static final boolean DEBUG = true && Build.IS_DEBUGGABLE; |
| |
| public static final String LOG_TAG = "NotificationController"; |
| |
| private static final String INTENT_ACTION_CANCEL_PRINTJOB = "INTENT_ACTION_CANCEL_PRINTJOB"; |
| private static final String INTENT_ACTION_RESTART_PRINTJOB = "INTENT_ACTION_RESTART_PRINTJOB"; |
| private static final String INTENT_EXTRA_PRINTJOB_ID = "INTENT_EXTRA_PRINTJOB_ID"; |
| |
| private final Context mContext; |
| private final NotificationManager mNotificationManager; |
| |
| public NotificationController(Context context) { |
| mContext = context; |
| mNotificationManager = (NotificationManager) |
| mContext.getSystemService(Context.NOTIFICATION_SERVICE); |
| } |
| |
| public void onPrintJobStateChanged(PrintJobInfo printJob, int oldState) { |
| if (DEBUG) { |
| Log.i(LOG_TAG, "onPrintJobStateChanged() printJobId: " + printJob.getId() |
| + " oldState: " + PrintJobInfo.stateToString(oldState) |
| + " newState:" + PrintJobInfo.stateToString(printJob.getState())); |
| } |
| switch (printJob.getState()) { |
| case PrintJobInfo.STATE_QUEUED: { |
| createQueuingNotificaiton(printJob); |
| } break; |
| |
| case PrintJobInfo.STATE_STARTED: { |
| createPrintingNotificaiton(printJob); |
| } break; |
| |
| case PrintJobInfo.STATE_FAILED: { |
| createFailedNotificaiton(printJob); |
| } break; |
| |
| case PrintJobInfo.STATE_COMPLETED: |
| case PrintJobInfo.STATE_CANCELED: { |
| if (oldState > PrintJobInfo.STATE_CREATED) { |
| removeNotification(printJob.getId()); |
| } |
| } break; |
| } |
| } |
| |
| private void createQueuingNotificaiton(PrintJobInfo printJob) { |
| Notification.Builder builder = new Notification.Builder(mContext) |
| // TODO: Use appropriate icon when assets are ready |
| .setSmallIcon(android.R.drawable.ic_secure) |
| .setContentTitle(mContext.getString(R.string.queued_notification_title_template, |
| printJob.getLabel())) |
| // TODO: Use appropriate icon when assets are ready |
| .addAction(android.R.drawable.ic_secure, mContext.getString(R.string.cancel), |
| createCancelIntent(printJob.getId())) |
| .setContentText(printJob.getPrinterId().getPrinterName()) |
| .setOngoing(true) |
| .setWhen(System.currentTimeMillis()) |
| .setShowWhen(true); |
| mNotificationManager.notify(printJob.getId(), builder.build()); |
| } |
| |
| private void createPrintingNotificaiton(PrintJobInfo printJob) { |
| Notification.Builder builder = new Notification.Builder(mContext) |
| // TODO: Use appropriate icon when assets are ready |
| .setSmallIcon(android.R.drawable.ic_secure) |
| .setContentTitle(mContext.getString(R.string.printing_notification_title_template, |
| printJob.getLabel())) |
| // TODO: Use appropriate icon when assets are ready |
| .addAction(android.R.drawable.ic_secure, mContext.getString(R.string.cancel), |
| createCancelIntent(printJob.getId())) |
| .setContentText(printJob.getPrinterId().getPrinterName()) |
| .setOngoing(true) |
| .setWhen(System.currentTimeMillis()) |
| .setShowWhen(true); |
| mNotificationManager.notify(printJob.getId(), builder.build()); |
| } |
| |
| private void createFailedNotificaiton(PrintJobInfo printJob) { |
| Notification.Builder builder = new Notification.Builder(mContext) |
| // TODO: Use appropriate icon when assets are ready |
| .setSmallIcon(android.R.drawable.ic_secure) |
| .setContentTitle(mContext.getString(R.string.failed_notification_title_template, |
| printJob.getLabel())) |
| // TODO: Use appropriate icon when assets are ready |
| .addAction(android.R.drawable.ic_secure, mContext.getString(R.string.cancel), |
| createCancelIntent(printJob.getId())) |
| // TODO: Use appropriate icon when assets are ready |
| .addAction(android.R.drawable.ic_secure, mContext.getString(R.string.restart), |
| createRestartIntent(printJob.getId())) |
| .setContentText(printJob.getFailureReason()) |
| .setOngoing(true) |
| .setWhen(System.currentTimeMillis()) |
| .setShowWhen(true); |
| mNotificationManager.notify(printJob.getId(), builder.build()); |
| } |
| |
| private void removeNotification(int printJobId) { |
| mNotificationManager.cancel(printJobId); |
| } |
| |
| private PendingIntent createCancelIntent(int printJobId) { |
| Intent intent = new Intent(mContext, NotificationBroadcastReceiver.class); |
| intent.setAction(INTENT_ACTION_CANCEL_PRINTJOB + "_" + String.valueOf(printJobId)); |
| intent.putExtra(INTENT_EXTRA_PRINTJOB_ID, printJobId); |
| return PendingIntent.getBroadcast(mContext, 0, intent, PendingIntent.FLAG_ONE_SHOT); |
| } |
| |
| private PendingIntent createRestartIntent(int printJobId) { |
| Intent intent = new Intent(mContext, NotificationBroadcastReceiver.class); |
| intent.setAction(INTENT_ACTION_RESTART_PRINTJOB + "_" + String.valueOf(printJobId)); |
| intent.putExtra(INTENT_EXTRA_PRINTJOB_ID, printJobId); |
| return PendingIntent.getBroadcast(mContext, 0, intent, PendingIntent.FLAG_ONE_SHOT); |
| } |
| |
| public static final class NotificationBroadcastReceiver extends BroadcastReceiver { |
| private static final String LOG_TAG = "NotificationBroadcastReceiver"; |
| |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| String action = intent.getAction(); |
| if (action != null && action.startsWith(INTENT_ACTION_CANCEL_PRINTJOB)) { |
| final int printJobId = intent.getExtras().getInt(INTENT_EXTRA_PRINTJOB_ID); |
| handleCancelPrintJob(context, printJobId); |
| } else if (action != null && action.startsWith(INTENT_ACTION_RESTART_PRINTJOB)) { |
| final int printJobId = intent.getExtras().getInt(INTENT_EXTRA_PRINTJOB_ID); |
| handleRestartPrintJob(context, printJobId); |
| } |
| } |
| |
| private void handleCancelPrintJob(final Context context, final int printJobId) { |
| if (DEBUG) { |
| Log.i(LOG_TAG, "handleCancelPrintJob() printJobId:" + printJobId); |
| } |
| |
| PrintSpooler printSpooler = PrintSpooler.getInstance(context); |
| |
| final PrintJobInfo printJob = printSpooler.getPrintJobInfo(printJobId, |
| PrintManager.APP_ID_ANY); |
| |
| if (printJob == null || printJob.getState() == PrintJobInfo.STATE_CANCELED) { |
| return; |
| } |
| |
| // Put up a notification that we are trying to cancel. |
| NotificationManager notificationManager = (NotificationManager) |
| context.getSystemService(Context.NOTIFICATION_SERVICE); |
| |
| Notification.Builder builder = new Notification.Builder(context) |
| // TODO: Use appropriate icon when assets are ready |
| .setSmallIcon(android.R.drawable.ic_secure) |
| .setContentTitle(context.getString( |
| R.string.cancelling_notification_title_template, |
| printJob.getLabel())) |
| .setContentText(printJob.getPrinterId().getPrinterName()) |
| .setOngoing(true) |
| .setWhen(System.currentTimeMillis()) |
| .setShowWhen(true); |
| |
| notificationManager.notify(printJob.getId(), builder.build()); |
| |
| // We need to request the cancellation to be done by the print |
| // manager service since it has to communicate with the managing |
| // print service to request the cancellation. Also we need the |
| // system service to be bound to the spooler since canceling a |
| // print job will trigger persistence of current jobs which is |
| // done on another thread and until it finishes the spooler has |
| // to be kept around. |
| IPrintManager printManager = IPrintManager.Stub.asInterface( |
| ServiceManager.getService(Context.PRINT_SERVICE)); |
| |
| try { |
| printManager.cancelPrintJob(printJobId, PrintManager.APP_ID_ANY, |
| UserHandle.myUserId()); |
| } catch (RemoteException re) { |
| Log.i(LOG_TAG, "Error requestion print job cancellation", re); |
| } |
| } |
| |
| private void handleRestartPrintJob(final Context context, final int printJobId) { |
| if (DEBUG) { |
| Log.i(LOG_TAG, "handleRestartPrintJob() printJobId:" + printJobId); |
| } |
| |
| PrintSpooler printSpooler = PrintSpooler.getInstance(context); |
| |
| PrintJobInfo printJob = printSpooler.getPrintJobInfo(printJobId, |
| PrintManager.APP_ID_ANY); |
| |
| if (printJob == null || printJob.getState() != PrintJobInfo.STATE_FAILED) { |
| return; |
| } |
| |
| // We need to request the restart to be done by the print manager |
| // service since the latter must be bound to the spooler because |
| // restarting a print job will trigger persistence of current jobs |
| // which is done on another thread and until it finishes the spooler has |
| // to be kept around. |
| IPrintManager printManager = IPrintManager.Stub.asInterface( |
| ServiceManager.getService(Context.PRINT_SERVICE)); |
| |
| try { |
| printManager.restartPrintJob(printJobId, PrintManager.APP_ID_ANY, |
| UserHandle.myUserId()); |
| } catch (RemoteException re) { |
| Log.i(LOG_TAG, "Error requestion print job restart", re); |
| } |
| } |
| } |
| } |