Svetoslav Ganov | 4b9a4d1 | 2013-06-11 15:20:06 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2013 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 android.print; |
| 18 | |
| 19 | import android.content.Context; |
| 20 | import android.content.IntentSender; |
| 21 | import android.content.IntentSender.SendIntentException; |
| 22 | import android.os.CancellationSignal; |
| 23 | import android.os.Handler; |
| 24 | import android.os.ICancellationSignal; |
| 25 | import android.os.Looper; |
| 26 | import android.os.Message; |
| 27 | import android.os.ParcelFileDescriptor; |
| 28 | import android.os.RemoteException; |
Svetoslav | fd90651 | 2013-06-24 09:04:48 -0700 | [diff] [blame^] | 29 | import android.print.PrintAdapter.PrintResultCallback; |
Svetoslav Ganov | 4b9a4d1 | 2013-06-11 15:20:06 -0700 | [diff] [blame] | 30 | import android.util.Log; |
| 31 | |
| 32 | import com.android.internal.os.SomeArgs; |
| 33 | |
| 34 | import libcore.io.IoUtils; |
| 35 | |
| 36 | import java.io.File; |
| 37 | import java.io.FileDescriptor; |
| 38 | import java.lang.ref.WeakReference; |
| 39 | import java.util.ArrayList; |
| 40 | import java.util.Collections; |
| 41 | import java.util.List; |
| 42 | |
| 43 | /** |
| 44 | * System level service for accessing the printing capabilities of the platform. |
| 45 | * <p> |
| 46 | * To obtain a handle to the print manager do the following: |
| 47 | * </p> |
| 48 | * <pre> |
| 49 | * PrintManager printManager = |
| 50 | * (PrintManager) context.getSystemService(Context.PRINT_SERVICE); |
| 51 | * </pre> |
| 52 | */ |
| 53 | public final class PrintManager { |
| 54 | |
| 55 | private static final String LOG_TAG = "PrintManager"; |
| 56 | |
| 57 | /** @hide */ |
| 58 | public static final int APP_ID_ANY = -2; |
| 59 | |
| 60 | private final Context mContext; |
| 61 | |
| 62 | private final IPrintManager mService; |
| 63 | |
| 64 | private final int mUserId; |
| 65 | |
| 66 | private final int mAppId; |
| 67 | |
| 68 | private final PrintClient mPrintClient; |
| 69 | |
| 70 | private final Handler mHandler; |
| 71 | |
| 72 | /** |
Svetoslav Ganov | 4b9a4d1 | 2013-06-11 15:20:06 -0700 | [diff] [blame] | 73 | * Creates a new instance. |
| 74 | * |
| 75 | * @param context The current context in which to operate. |
| 76 | * @param service The backing system service. |
| 77 | * |
| 78 | * @hide |
| 79 | */ |
| 80 | public PrintManager(Context context, IPrintManager service, int userId, int appId) { |
| 81 | mContext = context; |
| 82 | mService = service; |
| 83 | mUserId = userId; |
| 84 | mAppId = appId; |
| 85 | mPrintClient = new PrintClient(this); |
| 86 | mHandler = new Handler(context.getMainLooper(), null, false) { |
| 87 | @Override |
| 88 | public void handleMessage(Message message) { |
| 89 | SomeArgs args = (SomeArgs) message.obj; |
| 90 | Context context = (Context) args.arg1; |
| 91 | IntentSender intent = (IntentSender) args.arg2; |
| 92 | args.recycle(); |
| 93 | try { |
| 94 | context.startIntentSender(intent, null, 0, 0, 0); |
| 95 | } catch (SendIntentException sie) { |
| 96 | Log.e(LOG_TAG, "Couldn't start print job config activity.", sie); |
| 97 | } |
| 98 | } |
| 99 | }; |
| 100 | } |
| 101 | |
| 102 | /** |
| 103 | * Creates an instance that can access all print jobs. |
| 104 | * |
| 105 | * @param userId The user id for which to get all print jobs. |
| 106 | * @return An instance of the caller has the permission to access |
| 107 | * all print jobs, null otherwise. |
| 108 | * |
| 109 | * @hide |
| 110 | */ |
| 111 | public PrintManager getGlobalPrintManagerForUser(int userId) { |
| 112 | return new PrintManager(mContext, mService, userId, APP_ID_ANY); |
| 113 | } |
| 114 | |
| 115 | PrintJobInfo getPrintJob(int printJobId) { |
| 116 | try { |
| 117 | return mService.getPrintJob(printJobId, mAppId, mUserId); |
| 118 | } catch (RemoteException re) { |
| 119 | Log.e(LOG_TAG, "Error getting print job:" + printJobId, re); |
| 120 | } |
| 121 | return null; |
| 122 | } |
| 123 | |
| 124 | /** |
| 125 | * Gets the print jobs for this application. |
| 126 | * |
| 127 | * @return The print job list. |
| 128 | * |
| 129 | * @see PrintJob |
| 130 | */ |
| 131 | public List<PrintJob> getPrintJobs() { |
| 132 | try { |
| 133 | List<PrintJobInfo> printJobInfos = mService.getPrintJobs(mAppId, mUserId); |
| 134 | if (printJobInfos == null) { |
| 135 | return Collections.emptyList(); |
| 136 | } |
| 137 | final int printJobCount = printJobInfos.size(); |
| 138 | List<PrintJob> printJobs = new ArrayList<PrintJob>(printJobCount); |
| 139 | for (int i = 0; i < printJobCount; i++) { |
| 140 | printJobs.add(new PrintJob(printJobInfos.get(i), this)); |
| 141 | } |
| 142 | return printJobs; |
| 143 | } catch (RemoteException re) { |
| 144 | Log.e(LOG_TAG, "Error getting print jobs!", re); |
| 145 | } |
| 146 | return Collections.emptyList(); |
| 147 | } |
| 148 | |
| 149 | ICancellationSignal cancelPrintJob(int printJobId) { |
| 150 | try { |
| 151 | mService.cancelPrintJob(printJobId, mAppId, mUserId); |
| 152 | } catch (RemoteException re) { |
| 153 | Log.e(LOG_TAG, "Error cancleing a print job:" + printJobId, re); |
| 154 | } |
| 155 | return null; |
| 156 | } |
| 157 | |
| 158 | /** |
| 159 | * Creates a print job for printing a file with default print attributes. |
| 160 | * |
| 161 | * @param printJobName A name for the new print job. |
| 162 | * @param pdfFile The PDF file to print. |
| 163 | * @param attributes The default print job attributes. |
| 164 | * @return The created print job. |
Svetoslav | fd90651 | 2013-06-24 09:04:48 -0700 | [diff] [blame^] | 165 | * |
| 166 | * @see PrintJob |
Svetoslav Ganov | 4b9a4d1 | 2013-06-11 15:20:06 -0700 | [diff] [blame] | 167 | */ |
| 168 | public PrintJob print(String printJobName, File pdfFile, PrintAttributes attributes) { |
| 169 | PrintFileAdapter printable = new PrintFileAdapter(pdfFile); |
| 170 | return print(printJobName, printable, attributes); |
| 171 | } |
| 172 | |
| 173 | /** |
| 174 | * Creates a print job for printing a {@link PrintAdapter} with default print |
| 175 | * attributes. |
| 176 | * |
| 177 | * @param printJobName A name for the new print job. |
| 178 | * @param printAdapter The printable adapter to print. |
| 179 | * @param attributes The default print job attributes. |
| 180 | * @return The created print job. |
Svetoslav | fd90651 | 2013-06-24 09:04:48 -0700 | [diff] [blame^] | 181 | * |
| 182 | * @see PrintJob |
Svetoslav Ganov | 4b9a4d1 | 2013-06-11 15:20:06 -0700 | [diff] [blame] | 183 | */ |
| 184 | public PrintJob print(String printJobName, PrintAdapter printAdapter, |
| 185 | PrintAttributes attributes) { |
| 186 | PrintAdapterDelegate delegate = new PrintAdapterDelegate(printAdapter, |
| 187 | mContext.getMainLooper()); |
| 188 | try { |
| 189 | PrintJobInfo printJob = mService.print(printJobName, mPrintClient, delegate, |
| 190 | attributes, mAppId, mUserId); |
| 191 | if (printJob != null) { |
| 192 | return new PrintJob(printJob, this); |
| 193 | } |
| 194 | } catch (RemoteException re) { |
| 195 | Log.e(LOG_TAG, "Error creating a print job", re); |
| 196 | } |
| 197 | return null; |
| 198 | } |
| 199 | |
| 200 | private static final class PrintClient extends IPrintClient.Stub { |
| 201 | |
| 202 | private final WeakReference<PrintManager> mWeakPrintManager; |
| 203 | |
| 204 | public PrintClient(PrintManager manager) { |
| 205 | mWeakPrintManager = new WeakReference<PrintManager>(manager); |
| 206 | } |
| 207 | |
| 208 | @Override |
| 209 | public void startPrintJobConfigActivity(IntentSender intent) { |
| 210 | PrintManager manager = mWeakPrintManager.get(); |
| 211 | if (manager != null) { |
| 212 | SomeArgs args = SomeArgs.obtain(); |
| 213 | args.arg1 = manager.mContext; |
| 214 | args.arg2 = intent; |
| 215 | manager.mHandler.obtainMessage(0, args).sendToTarget(); |
| 216 | } |
| 217 | } |
| 218 | } |
| 219 | |
| 220 | private static final class PrintAdapterDelegate extends IPrintAdapter.Stub { |
| 221 | private final Object mLock = new Object(); |
| 222 | |
| 223 | private PrintAdapter mPrintAdapter; |
| 224 | |
| 225 | private Handler mHandler; |
| 226 | |
| 227 | public PrintAdapterDelegate(PrintAdapter printAdapter, Looper looper) { |
| 228 | mPrintAdapter = printAdapter; |
| 229 | mHandler = new MyHandler(looper); |
| 230 | } |
| 231 | |
| 232 | @Override |
| 233 | public void start() { |
| 234 | synchronized (mLock) { |
| 235 | if (isFinishedLocked()) { |
| 236 | return; |
| 237 | } |
| 238 | mHandler.obtainMessage(MyHandler.MESSAGE_START, |
| 239 | mPrintAdapter).sendToTarget(); |
| 240 | } |
| 241 | } |
| 242 | |
| 243 | @Override |
| 244 | public void printAttributesChanged(PrintAttributes attributes) { |
| 245 | synchronized (mLock) { |
| 246 | if (isFinishedLocked()) { |
| 247 | return; |
| 248 | } |
| 249 | SomeArgs args = SomeArgs.obtain(); |
| 250 | args.arg1 = mPrintAdapter; |
| 251 | args.arg2 = attributes; |
| 252 | mHandler.obtainMessage(MyHandler.MESSAGE_PRINT_ATTRIBUTES_CHANGED, |
| 253 | args).sendToTarget(); |
| 254 | } |
| 255 | } |
| 256 | |
| 257 | @Override |
| 258 | public void print(List<PageRange> pages, ParcelFileDescriptor fd, |
Svetoslav | fd90651 | 2013-06-24 09:04:48 -0700 | [diff] [blame^] | 259 | IPrintResultCallback callback) { |
Svetoslav Ganov | 4b9a4d1 | 2013-06-11 15:20:06 -0700 | [diff] [blame] | 260 | synchronized (mLock) { |
| 261 | if (isFinishedLocked()) { |
| 262 | return; |
| 263 | } |
| 264 | SomeArgs args = SomeArgs.obtain(); |
| 265 | args.arg1 = mPrintAdapter; |
| 266 | args.arg2 = pages; |
| 267 | args.arg3 = fd.getFileDescriptor(); |
Svetoslav | fd90651 | 2013-06-24 09:04:48 -0700 | [diff] [blame^] | 268 | args.arg4 = callback; |
Svetoslav Ganov | 4b9a4d1 | 2013-06-11 15:20:06 -0700 | [diff] [blame] | 269 | mHandler.obtainMessage(MyHandler.MESSAGE_PRINT, args).sendToTarget(); |
| 270 | } |
| 271 | } |
| 272 | |
| 273 | @Override |
| 274 | public void finish() { |
| 275 | synchronized (mLock) { |
| 276 | if (isFinishedLocked()) { |
| 277 | return; |
| 278 | } |
| 279 | mHandler.obtainMessage(MyHandler.MESSAGE_FINIS, |
| 280 | mPrintAdapter).sendToTarget(); |
| 281 | } |
| 282 | } |
| 283 | |
| 284 | private boolean isFinishedLocked() { |
| 285 | return mPrintAdapter == null; |
| 286 | } |
| 287 | |
| 288 | private void finishLocked() { |
| 289 | mPrintAdapter = null; |
| 290 | mHandler = null; |
| 291 | } |
| 292 | |
| 293 | private final class MyHandler extends Handler { |
| 294 | public static final int MESSAGE_START = 1; |
| 295 | public static final int MESSAGE_PRINT_ATTRIBUTES_CHANGED = 2; |
| 296 | public static final int MESSAGE_PRINT = 3; |
| 297 | public static final int MESSAGE_FINIS = 4; |
| 298 | |
| 299 | public MyHandler(Looper looper) { |
| 300 | super(looper, null, true); |
| 301 | } |
| 302 | |
| 303 | @Override |
| 304 | public void handleMessage(Message message) { |
| 305 | switch (message.what) { |
| 306 | case MESSAGE_START: { |
| 307 | PrintAdapter adapter = (PrintAdapter) message.obj; |
| 308 | adapter.onStart(); |
| 309 | } break; |
| 310 | |
| 311 | case MESSAGE_PRINT_ATTRIBUTES_CHANGED: { |
| 312 | SomeArgs args = (SomeArgs) message.obj; |
| 313 | PrintAdapter adapter = (PrintAdapter) args.arg1; |
| 314 | PrintAttributes attributes = (PrintAttributes) args.arg2; |
| 315 | args.recycle(); |
| 316 | adapter.onPrintAttributesChanged(attributes); |
| 317 | } break; |
| 318 | |
| 319 | case MESSAGE_PRINT: { |
| 320 | SomeArgs args = (SomeArgs) message.obj; |
| 321 | PrintAdapter adapter = (PrintAdapter) args.arg1; |
| 322 | @SuppressWarnings("unchecked") |
| 323 | List<PageRange> pages = (List<PageRange>) args.arg2; |
| 324 | final FileDescriptor fd = (FileDescriptor) args.arg3; |
Svetoslav | fd90651 | 2013-06-24 09:04:48 -0700 | [diff] [blame^] | 325 | IPrintResultCallback callback = (IPrintResultCallback) args.arg4; |
Svetoslav Ganov | 4b9a4d1 | 2013-06-11 15:20:06 -0700 | [diff] [blame] | 326 | args.recycle(); |
| 327 | try { |
| 328 | ICancellationSignal remoteSignal = CancellationSignal.createTransport(); |
Svetoslav | fd90651 | 2013-06-24 09:04:48 -0700 | [diff] [blame^] | 329 | callback.onPrintStarted(adapter.getInfo(), remoteSignal); |
Svetoslav Ganov | 4b9a4d1 | 2013-06-11 15:20:06 -0700 | [diff] [blame] | 330 | |
| 331 | CancellationSignal localSignal = CancellationSignal.fromTransport( |
| 332 | remoteSignal); |
| 333 | adapter.onPrint(pages, fd, localSignal, |
Svetoslav | fd90651 | 2013-06-24 09:04:48 -0700 | [diff] [blame^] | 334 | new PrintResultCallbackWrapper(callback) { |
Svetoslav Ganov | 4b9a4d1 | 2013-06-11 15:20:06 -0700 | [diff] [blame] | 335 | @Override |
| 336 | public void onPrintFinished(List<PageRange> pages) { |
| 337 | IoUtils.closeQuietly(fd); |
| 338 | super.onPrintFinished(pages); |
| 339 | } |
| 340 | |
| 341 | @Override |
| 342 | public void onPrintFailed(CharSequence error) { |
| 343 | IoUtils.closeQuietly(fd); |
| 344 | super.onPrintFailed(error); |
| 345 | } |
| 346 | }); |
| 347 | } catch (RemoteException re) { |
| 348 | Log.e(LOG_TAG, "Error printing", re); |
| 349 | IoUtils.closeQuietly(fd); |
| 350 | } |
| 351 | } break; |
| 352 | |
| 353 | case MESSAGE_FINIS: { |
| 354 | PrintAdapter adapter = (PrintAdapter) message.obj; |
| 355 | adapter.onFinish(); |
| 356 | synchronized (mLock) { |
| 357 | finishLocked(); |
| 358 | } |
| 359 | } break; |
| 360 | |
| 361 | default: { |
| 362 | throw new IllegalArgumentException("Unknown message: " |
| 363 | + message.what); |
| 364 | } |
| 365 | } |
| 366 | } |
| 367 | } |
| 368 | } |
| 369 | |
Svetoslav | fd90651 | 2013-06-24 09:04:48 -0700 | [diff] [blame^] | 370 | private static abstract class PrintResultCallbackWrapper extends PrintResultCallback { |
Svetoslav Ganov | 4b9a4d1 | 2013-06-11 15:20:06 -0700 | [diff] [blame] | 371 | |
Svetoslav | fd90651 | 2013-06-24 09:04:48 -0700 | [diff] [blame^] | 372 | private final IPrintResultCallback mWrappedCallback; |
Svetoslav Ganov | 4b9a4d1 | 2013-06-11 15:20:06 -0700 | [diff] [blame] | 373 | |
Svetoslav | fd90651 | 2013-06-24 09:04:48 -0700 | [diff] [blame^] | 374 | public PrintResultCallbackWrapper(IPrintResultCallback callback) { |
| 375 | mWrappedCallback = callback; |
Svetoslav Ganov | 4b9a4d1 | 2013-06-11 15:20:06 -0700 | [diff] [blame] | 376 | } |
| 377 | |
| 378 | @Override |
| 379 | public void onPrintFinished(List<PageRange> pages) { |
| 380 | try { |
Svetoslav | fd90651 | 2013-06-24 09:04:48 -0700 | [diff] [blame^] | 381 | mWrappedCallback.onPrintFinished(pages); |
Svetoslav Ganov | 4b9a4d1 | 2013-06-11 15:20:06 -0700 | [diff] [blame] | 382 | } catch (RemoteException re) { |
Svetoslav | fd90651 | 2013-06-24 09:04:48 -0700 | [diff] [blame^] | 383 | Log.e(LOG_TAG, "Error calling onPrintFinished", re); |
Svetoslav Ganov | 4b9a4d1 | 2013-06-11 15:20:06 -0700 | [diff] [blame] | 384 | } |
| 385 | } |
| 386 | |
| 387 | @Override |
| 388 | public void onPrintFailed(CharSequence error) { |
| 389 | try { |
Svetoslav | fd90651 | 2013-06-24 09:04:48 -0700 | [diff] [blame^] | 390 | mWrappedCallback.onPrintFailed(error); |
Svetoslav Ganov | 4b9a4d1 | 2013-06-11 15:20:06 -0700 | [diff] [blame] | 391 | } catch (RemoteException re) { |
Svetoslav | fd90651 | 2013-06-24 09:04:48 -0700 | [diff] [blame^] | 392 | Log.e(LOG_TAG, "Error calling onPrintFailed", re); |
Svetoslav Ganov | 4b9a4d1 | 2013-06-11 15:20:06 -0700 | [diff] [blame] | 393 | } |
| 394 | } |
| 395 | } |
| 396 | } |