DirectoryFragment.java revision 9be34298be02783b4cc91cf1784aa0627cf36012
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 17package com.android.documentsui; 18 19import static com.android.documentsui.BaseActivity.State.ACTION_BROWSE; 20import static com.android.documentsui.BaseActivity.State.ACTION_BROWSE_ALL; 21import static com.android.documentsui.BaseActivity.State.ACTION_CREATE; 22import static com.android.documentsui.BaseActivity.State.ACTION_MANAGE; 23import static com.android.documentsui.BaseActivity.State.MODE_GRID; 24import static com.android.documentsui.BaseActivity.State.MODE_LIST; 25import static com.android.documentsui.BaseActivity.State.MODE_UNKNOWN; 26import static com.android.documentsui.BaseActivity.State.SORT_ORDER_UNKNOWN; 27import static com.android.documentsui.DocumentsActivity.TAG; 28import static com.android.documentsui.model.DocumentInfo.getCursorInt; 29import static com.android.documentsui.model.DocumentInfo.getCursorLong; 30import static com.android.documentsui.model.DocumentInfo.getCursorString; 31 32import android.app.Activity; 33import android.app.ActivityManager; 34import android.app.Fragment; 35import android.app.FragmentManager; 36import android.app.FragmentTransaction; 37import android.app.LoaderManager.LoaderCallbacks; 38import android.content.ContentProviderClient; 39import android.content.ContentResolver; 40import android.content.ContentValues; 41import android.content.Context; 42import android.content.Intent; 43import android.content.Loader; 44import android.content.res.Resources; 45import android.database.Cursor; 46import android.graphics.Bitmap; 47import android.graphics.Point; 48import android.graphics.drawable.Drawable; 49import android.graphics.drawable.InsetDrawable; 50import android.net.Uri; 51import android.os.AsyncTask; 52import android.os.Bundle; 53import android.os.CancellationSignal; 54import android.os.OperationCanceledException; 55import android.os.Parcelable; 56import android.os.SystemProperties; 57import android.provider.DocumentsContract; 58import android.provider.DocumentsContract.Document; 59import android.text.format.DateUtils; 60import android.text.format.Formatter; 61import android.text.format.Time; 62import android.util.Log; 63import android.util.SparseArray; 64import android.util.SparseBooleanArray; 65import android.view.ActionMode; 66import android.view.LayoutInflater; 67import android.view.Menu; 68import android.view.MenuItem; 69import android.view.View; 70import android.view.ViewGroup; 71import android.widget.AbsListView; 72import android.widget.AbsListView.MultiChoiceModeListener; 73import android.widget.AbsListView.RecyclerListener; 74import android.widget.AdapterView; 75import android.widget.AdapterView.OnItemClickListener; 76import android.widget.BaseAdapter; 77import android.widget.GridView; 78import android.widget.ImageView; 79import android.widget.ListView; 80import android.widget.TextView; 81import android.widget.Toast; 82 83import com.android.documentsui.BaseActivity.State; 84import com.android.documentsui.ProviderExecutor.Preemptable; 85import com.android.documentsui.RecentsProvider.StateColumns; 86import com.android.documentsui.model.DocumentInfo; 87import com.android.documentsui.model.RootInfo; 88import com.google.android.collect.Lists; 89 90import java.util.ArrayList; 91import java.util.List; 92 93/** 94 * Display the documents inside a single directory. 95 */ 96public class DirectoryFragment extends Fragment { 97 98 private View mEmptyView; 99 private ListView mListView; 100 private GridView mGridView; 101 102 private AbsListView mCurrentView; 103 104 private List<DocumentInfo> mSelectedDocumentsForCopy; 105 106 public static final int TYPE_NORMAL = 1; 107 public static final int TYPE_SEARCH = 2; 108 public static final int TYPE_RECENT_OPEN = 3; 109 110 public static final int ANIM_NONE = 1; 111 public static final int ANIM_SIDE = 2; 112 public static final int ANIM_DOWN = 3; 113 public static final int ANIM_UP = 4; 114 115 public static final int REQUEST_COPY_DESTINATION = 1; 116 117 private int mType = TYPE_NORMAL; 118 private String mStateKey; 119 120 private int mLastMode = MODE_UNKNOWN; 121 private int mLastSortOrder = SORT_ORDER_UNKNOWN; 122 private boolean mLastShowSize = false; 123 124 private boolean mHideGridTitles = false; 125 126 private boolean mSvelteRecents; 127 private Point mThumbSize; 128 129 private DocumentsAdapter mAdapter; 130 private LoaderCallbacks<DirectoryResult> mCallbacks; 131 132 private static final String EXTRA_TYPE = "type"; 133 private static final String EXTRA_ROOT = "root"; 134 private static final String EXTRA_DOC = "doc"; 135 private static final String EXTRA_QUERY = "query"; 136 private static final String EXTRA_IGNORE_STATE = "ignoreState"; 137 138 private final int mLoaderId = 42; 139 140 public static void showNormal(FragmentManager fm, RootInfo root, DocumentInfo doc, int anim) { 141 show(fm, TYPE_NORMAL, root, doc, null, anim); 142 } 143 144 public static void showSearch(FragmentManager fm, RootInfo root, String query, int anim) { 145 show(fm, TYPE_SEARCH, root, null, query, anim); 146 } 147 148 public static void showRecentsOpen(FragmentManager fm, int anim) { 149 show(fm, TYPE_RECENT_OPEN, null, null, null, anim); 150 } 151 152 private static void show(FragmentManager fm, int type, RootInfo root, DocumentInfo doc, 153 String query, int anim) { 154 final Bundle args = new Bundle(); 155 args.putInt(EXTRA_TYPE, type); 156 args.putParcelable(EXTRA_ROOT, root); 157 args.putParcelable(EXTRA_DOC, doc); 158 args.putString(EXTRA_QUERY, query); 159 160 final FragmentTransaction ft = fm.beginTransaction(); 161 switch (anim) { 162 case ANIM_SIDE: 163 args.putBoolean(EXTRA_IGNORE_STATE, true); 164 break; 165 case ANIM_DOWN: 166 args.putBoolean(EXTRA_IGNORE_STATE, true); 167 ft.setCustomAnimations(R.animator.dir_down, R.animator.dir_frozen); 168 break; 169 case ANIM_UP: 170 ft.setCustomAnimations(R.animator.dir_frozen, R.animator.dir_up); 171 break; 172 } 173 174 final DirectoryFragment fragment = new DirectoryFragment(); 175 fragment.setArguments(args); 176 177 ft.replace(R.id.container_directory, fragment); 178 ft.commitAllowingStateLoss(); 179 } 180 181 private static String buildStateKey(RootInfo root, DocumentInfo doc) { 182 final StringBuilder builder = new StringBuilder(); 183 builder.append(root != null ? root.authority : "null").append(';'); 184 builder.append(root != null ? root.rootId : "null").append(';'); 185 builder.append(doc != null ? doc.documentId : "null"); 186 return builder.toString(); 187 } 188 189 public static DirectoryFragment get(FragmentManager fm) { 190 // TODO: deal with multiple directories shown at once 191 return (DirectoryFragment) fm.findFragmentById(R.id.container_directory); 192 } 193 194 @Override 195 public View onCreateView( 196 LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { 197 final Context context = inflater.getContext(); 198 final Resources res = context.getResources(); 199 final View view = inflater.inflate(R.layout.fragment_directory, container, false); 200 201 mEmptyView = view.findViewById(android.R.id.empty); 202 203 mListView = (ListView) view.findViewById(R.id.list); 204 mListView.setOnItemClickListener(mItemListener); 205 mListView.setMultiChoiceModeListener(mMultiListener); 206 mListView.setRecyclerListener(mRecycleListener); 207 208 // Indent our list divider to align with text 209 final Drawable divider = mListView.getDivider(); 210 final boolean insetLeft = res.getBoolean(R.bool.list_divider_inset_left); 211 final int insetSize = res.getDimensionPixelSize(R.dimen.list_divider_inset); 212 if (insetLeft) { 213 mListView.setDivider(new InsetDrawable(divider, insetSize, 0, 0, 0)); 214 } else { 215 mListView.setDivider(new InsetDrawable(divider, 0, 0, insetSize, 0)); 216 } 217 218 mGridView = (GridView) view.findViewById(R.id.grid); 219 mGridView.setOnItemClickListener(mItemListener); 220 mGridView.setMultiChoiceModeListener(mMultiListener); 221 mGridView.setRecyclerListener(mRecycleListener); 222 223 return view; 224 } 225 226 @Override 227 public void onDestroyView() { 228 super.onDestroyView(); 229 230 // Cancel any outstanding thumbnail requests 231 final ViewGroup target = (mListView.getAdapter() != null) ? mListView : mGridView; 232 final int count = target.getChildCount(); 233 for (int i = 0; i < count; i++) { 234 final View view = target.getChildAt(i); 235 mRecycleListener.onMovedToScrapHeap(view); 236 } 237 238 // Tear down any selection in progress 239 mListView.setChoiceMode(AbsListView.CHOICE_MODE_NONE); 240 mGridView.setChoiceMode(AbsListView.CHOICE_MODE_NONE); 241 } 242 243 @Override 244 public void onActivityCreated(Bundle savedInstanceState) { 245 super.onActivityCreated(savedInstanceState); 246 247 final Context context = getActivity(); 248 final State state = getDisplayState(DirectoryFragment.this); 249 250 final RootInfo root = getArguments().getParcelable(EXTRA_ROOT); 251 final DocumentInfo doc = getArguments().getParcelable(EXTRA_DOC); 252 253 mAdapter = new DocumentsAdapter(); 254 mType = getArguments().getInt(EXTRA_TYPE); 255 mStateKey = buildStateKey(root, doc); 256 257 if (mType == TYPE_RECENT_OPEN) { 258 // Hide titles when showing recents for picking images/videos 259 mHideGridTitles = MimePredicate.mimeMatches( 260 MimePredicate.VISUAL_MIMES, state.acceptMimes); 261 } else { 262 mHideGridTitles = (doc != null) && doc.isGridTitlesHidden(); 263 } 264 265 final ActivityManager am = (ActivityManager) context.getSystemService( 266 Context.ACTIVITY_SERVICE); 267 mSvelteRecents = am.isLowRamDevice() && (mType == TYPE_RECENT_OPEN); 268 269 mCallbacks = new LoaderCallbacks<DirectoryResult>() { 270 @Override 271 public Loader<DirectoryResult> onCreateLoader(int id, Bundle args) { 272 final String query = getArguments().getString(EXTRA_QUERY); 273 274 Uri contentsUri; 275 switch (mType) { 276 case TYPE_NORMAL: 277 contentsUri = DocumentsContract.buildChildDocumentsUri( 278 doc.authority, doc.documentId); 279 if (state.action == ACTION_MANAGE) { 280 contentsUri = DocumentsContract.setManageMode(contentsUri); 281 } 282 return new DirectoryLoader( 283 context, mType, root, doc, contentsUri, state.userSortOrder); 284 case TYPE_SEARCH: 285 contentsUri = DocumentsContract.buildSearchDocumentsUri( 286 root.authority, root.rootId, query); 287 if (state.action == ACTION_MANAGE) { 288 contentsUri = DocumentsContract.setManageMode(contentsUri); 289 } 290 return new DirectoryLoader( 291 context, mType, root, doc, contentsUri, state.userSortOrder); 292 case TYPE_RECENT_OPEN: 293 final RootsCache roots = DocumentsApplication.getRootsCache(context); 294 return new RecentLoader(context, roots, state); 295 default: 296 throw new IllegalStateException("Unknown type " + mType); 297 } 298 } 299 300 @Override 301 public void onLoadFinished(Loader<DirectoryResult> loader, DirectoryResult result) { 302 if (!isAdded()) return; 303 304 mAdapter.swapResult(result); 305 306 // Push latest state up to UI 307 // TODO: if mode change was racing with us, don't overwrite it 308 if (result.mode != MODE_UNKNOWN) { 309 state.derivedMode = result.mode; 310 } 311 state.derivedSortOrder = result.sortOrder; 312 ((BaseActivity) context).onStateChanged(); 313 314 updateDisplayState(); 315 316 // When launched into empty recents, show drawer 317 if (mType == TYPE_RECENT_OPEN && mAdapter.isEmpty() && !state.stackTouched) { 318 ((BaseActivity) context).setRootsDrawerOpen(true); 319 } 320 321 // Restore any previous instance state 322 final SparseArray<Parcelable> container = state.dirState.remove(mStateKey); 323 if (container != null && !getArguments().getBoolean(EXTRA_IGNORE_STATE, false)) { 324 getView().restoreHierarchyState(container); 325 } else if (mLastSortOrder != state.derivedSortOrder) { 326 mListView.smoothScrollToPosition(0); 327 mGridView.smoothScrollToPosition(0); 328 } 329 330 mLastSortOrder = state.derivedSortOrder; 331 } 332 333 @Override 334 public void onLoaderReset(Loader<DirectoryResult> loader) { 335 mAdapter.swapResult(null); 336 } 337 }; 338 339 // Kick off loader at least once 340 getLoaderManager().restartLoader(mLoaderId, null, mCallbacks); 341 342 updateDisplayState(); 343 } 344 345 @Override 346 public void onActivityResult(int requestCode, int resultCode, Intent data) { 347 final Context context = getActivity(); 348 final Resources res = context.getResources(); 349 350 // There's only one request code right now. Replace this with a switch statement or 351 // something more scalable when more codes are added. 352 if (requestCode != REQUEST_COPY_DESTINATION) { 353 return; 354 } 355 if (resultCode == Activity.RESULT_CANCELED || data == null) { 356 // User pressed the back button or otherwise cancelled the destination pick. Don't 357 // proceed with the copy. 358 return; 359 } 360 361 final List<DocumentInfo> docs = mSelectedDocumentsForCopy; 362 final Intent copyIntent = new Intent(context, CopyService.class); 363 copyIntent.putParcelableArrayListExtra(CopyService.EXTRA_SRC_LIST, new ArrayList<DocumentInfo>(docs)); 364 copyIntent.putExtra(CopyService.EXTRA_STACK, data.getParcelableExtra(CopyService.EXTRA_STACK)); 365 366 Toast.makeText(context, 367 res.getQuantityString(R.plurals.copy_begin, docs.size(), docs.size()), 368 Toast.LENGTH_SHORT).show(); 369 context.startService(copyIntent); 370 } 371 372 @Override 373 public void onStop() { 374 super.onStop(); 375 376 // Remember last scroll location 377 final SparseArray<Parcelable> container = new SparseArray<Parcelable>(); 378 getView().saveHierarchyState(container); 379 final State state = getDisplayState(this); 380 state.dirState.put(mStateKey, container); 381 } 382 383 @Override 384 public void onResume() { 385 super.onResume(); 386 updateDisplayState(); 387 } 388 389 public void onDisplayStateChanged() { 390 updateDisplayState(); 391 } 392 393 public void onUserSortOrderChanged() { 394 // Sort order change always triggers reload; we'll trigger state change 395 // on the flip side. 396 getLoaderManager().restartLoader(mLoaderId, null, mCallbacks); 397 } 398 399 public void onUserModeChanged() { 400 final ContentResolver resolver = getActivity().getContentResolver(); 401 final State state = getDisplayState(this); 402 403 final RootInfo root = getArguments().getParcelable(EXTRA_ROOT); 404 final DocumentInfo doc = getArguments().getParcelable(EXTRA_DOC); 405 406 if (root != null && doc != null) { 407 final Uri stateUri = RecentsProvider.buildState( 408 root.authority, root.rootId, doc.documentId); 409 final ContentValues values = new ContentValues(); 410 values.put(StateColumns.MODE, state.userMode); 411 412 new AsyncTask<Void, Void, Void>() { 413 @Override 414 protected Void doInBackground(Void... params) { 415 resolver.insert(stateUri, values); 416 return null; 417 } 418 }.execute(); 419 } 420 421 // Mode change is just visual change; no need to kick loader, and 422 // deliver change event immediately. 423 state.derivedMode = state.userMode; 424 ((BaseActivity) getActivity()).onStateChanged(); 425 426 updateDisplayState(); 427 } 428 429 private void updateDisplayState() { 430 final State state = getDisplayState(this); 431 432 if (mLastMode == state.derivedMode && mLastShowSize == state.showSize) return; 433 mLastMode = state.derivedMode; 434 mLastShowSize = state.showSize; 435 436 mListView.setVisibility(state.derivedMode == MODE_LIST ? View.VISIBLE : View.GONE); 437 mGridView.setVisibility(state.derivedMode == MODE_GRID ? View.VISIBLE : View.GONE); 438 439 final int choiceMode; 440 if (state.allowMultiple) { 441 choiceMode = ListView.CHOICE_MODE_MULTIPLE_MODAL; 442 } else { 443 choiceMode = ListView.CHOICE_MODE_NONE; 444 } 445 446 final int thumbSize; 447 if (state.derivedMode == MODE_GRID) { 448 thumbSize = getResources().getDimensionPixelSize(R.dimen.grid_width); 449 mListView.setAdapter(null); 450 mListView.setChoiceMode(ListView.CHOICE_MODE_NONE); 451 mGridView.setAdapter(mAdapter); 452 mGridView.setColumnWidth(getResources().getDimensionPixelSize(R.dimen.grid_width)); 453 mGridView.setNumColumns(GridView.AUTO_FIT); 454 mGridView.setChoiceMode(choiceMode); 455 mCurrentView = mGridView; 456 } else if (state.derivedMode == MODE_LIST) { 457 thumbSize = getResources().getDimensionPixelSize(R.dimen.icon_size); 458 mGridView.setAdapter(null); 459 mGridView.setChoiceMode(ListView.CHOICE_MODE_NONE); 460 mListView.setAdapter(mAdapter); 461 mListView.setChoiceMode(choiceMode); 462 mCurrentView = mListView; 463 } else { 464 throw new IllegalStateException("Unknown state " + state.derivedMode); 465 } 466 467 mThumbSize = new Point(thumbSize, thumbSize); 468 } 469 470 private OnItemClickListener mItemListener = new OnItemClickListener() { 471 @Override 472 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 473 final Cursor cursor = mAdapter.getItem(position); 474 if (cursor != null) { 475 final String docMimeType = getCursorString(cursor, Document.COLUMN_MIME_TYPE); 476 final int docFlags = getCursorInt(cursor, Document.COLUMN_FLAGS); 477 if (isDocumentEnabled(docMimeType, docFlags)) { 478 final DocumentInfo doc = DocumentInfo.fromDirectoryCursor(cursor); 479 ((BaseActivity) getActivity()).onDocumentPicked(doc); 480 } 481 } 482 } 483 }; 484 485 private MultiChoiceModeListener mMultiListener = new MultiChoiceModeListener() { 486 @Override 487 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 488 mode.getMenuInflater().inflate(R.menu.mode_directory, menu); 489 mode.setTitle(getResources() 490 .getString(R.string.mode_selected_count, mCurrentView.getCheckedItemCount())); 491 return true; 492 } 493 494 @Override 495 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 496 final State state = getDisplayState(DirectoryFragment.this); 497 498 final MenuItem open = menu.findItem(R.id.menu_open); 499 final MenuItem share = menu.findItem(R.id.menu_share); 500 final MenuItem delete = menu.findItem(R.id.menu_delete); 501 final MenuItem copy = menu.findItem(R.id.menu_copy); 502 503 final boolean manageOrBrowse = (state.action == ACTION_MANAGE 504 || state.action == ACTION_BROWSE || state.action == ACTION_BROWSE_ALL); 505 506 open.setVisible(!manageOrBrowse); 507 share.setVisible(manageOrBrowse); 508 delete.setVisible(manageOrBrowse); 509 510 // TODO: unhide copying when ready 511 copy.setVisible(manageOrBrowse && 512 SystemProperties.getBoolean("debug.documentsui.enable_copy", false)); 513 514 return true; 515 } 516 517 @Override 518 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 519 final SparseBooleanArray checked = mCurrentView.getCheckedItemPositions(); 520 final ArrayList<DocumentInfo> docs = Lists.newArrayList(); 521 final int size = checked.size(); 522 for (int i = 0; i < size; i++) { 523 if (checked.valueAt(i)) { 524 final Cursor cursor = mAdapter.getItem(checked.keyAt(i)); 525 final DocumentInfo doc = DocumentInfo.fromDirectoryCursor(cursor); 526 docs.add(doc); 527 } 528 } 529 530 final int id = item.getItemId(); 531 if (id == R.id.menu_open) { 532 BaseActivity.get(DirectoryFragment.this).onDocumentsPicked(docs); 533 mode.finish(); 534 return true; 535 536 } else if (id == R.id.menu_share) { 537 onShareDocuments(docs); 538 mode.finish(); 539 return true; 540 541 } else if (id == R.id.menu_delete) { 542 onDeleteDocuments(docs); 543 mode.finish(); 544 return true; 545 546 } else if (id == R.id.menu_copy) { 547 onCopyDocuments(docs); 548 mode.finish(); 549 return true; 550 551 } else if (id == R.id.menu_select_all) { 552 int count = mCurrentView.getCount(); 553 for (int i = 0; i < count; i++) { 554 mCurrentView.setItemChecked(i, true); 555 } 556 updateDisplayState(); 557 return true; 558 559 } else { 560 return false; 561 } 562 } 563 564 @Override 565 public void onDestroyActionMode(ActionMode mode) { 566 // ignored 567 } 568 569 @Override 570 public void onItemCheckedStateChanged( 571 ActionMode mode, int position, long id, boolean checked) { 572 if (checked) { 573 // Directories and footer items cannot be checked 574 boolean valid = false; 575 576 final Cursor cursor = mAdapter.getItem(position); 577 if (cursor != null) { 578 final String docMimeType = getCursorString(cursor, Document.COLUMN_MIME_TYPE); 579 final int docFlags = getCursorInt(cursor, Document.COLUMN_FLAGS); 580 valid = isDocumentEnabled(docMimeType, docFlags); 581 } 582 583 if (!valid) { 584 mCurrentView.setItemChecked(position, false); 585 } 586 } 587 588 mode.setTitle(getResources() 589 .getString(R.string.mode_selected_count, mCurrentView.getCheckedItemCount())); 590 } 591 }; 592 593 private RecyclerListener mRecycleListener = new RecyclerListener() { 594 @Override 595 public void onMovedToScrapHeap(View view) { 596 final ImageView iconThumb = (ImageView) view.findViewById(R.id.icon_thumb); 597 if (iconThumb != null) { 598 final ThumbnailAsyncTask oldTask = (ThumbnailAsyncTask) iconThumb.getTag(); 599 if (oldTask != null) { 600 oldTask.preempt(); 601 iconThumb.setTag(null); 602 } 603 } 604 } 605 }; 606 607 private void onShareDocuments(List<DocumentInfo> docs) { 608 Intent intent; 609 610 // Filter out directories - those can't be shared. 611 List<DocumentInfo> docsForSend = Lists.newArrayList(); 612 for (DocumentInfo doc: docs) { 613 if (!Document.MIME_TYPE_DIR.equals(doc.mimeType)) { 614 docsForSend.add(doc); 615 } 616 } 617 618 if (docsForSend.size() == 1) { 619 final DocumentInfo doc = docsForSend.get(0); 620 621 intent = new Intent(Intent.ACTION_SEND); 622 intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION); 623 intent.addCategory(Intent.CATEGORY_DEFAULT); 624 intent.setType(doc.mimeType); 625 intent.putExtra(Intent.EXTRA_STREAM, doc.derivedUri); 626 627 } else if (docsForSend.size() > 1) { 628 intent = new Intent(Intent.ACTION_SEND_MULTIPLE); 629 intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION); 630 intent.addCategory(Intent.CATEGORY_DEFAULT); 631 632 final ArrayList<String> mimeTypes = Lists.newArrayList(); 633 final ArrayList<Uri> uris = Lists.newArrayList(); 634 for (DocumentInfo doc : docsForSend) { 635 mimeTypes.add(doc.mimeType); 636 uris.add(doc.derivedUri); 637 } 638 639 intent.setType(findCommonMimeType(mimeTypes)); 640 intent.putParcelableArrayListExtra(Intent.EXTRA_STREAM, uris); 641 642 } else { 643 return; 644 } 645 646 intent = Intent.createChooser(intent, getActivity().getText(R.string.share_via)); 647 startActivity(intent); 648 } 649 650 private void onDeleteDocuments(List<DocumentInfo> docs) { 651 final Context context = getActivity(); 652 final ContentResolver resolver = context.getContentResolver(); 653 654 boolean hadTrouble = false; 655 for (DocumentInfo doc : docs) { 656 if (!doc.isDeleteSupported()) { 657 Log.w(TAG, "Skipping " + doc); 658 hadTrouble = true; 659 continue; 660 } 661 662 ContentProviderClient client = null; 663 try { 664 client = DocumentsApplication.acquireUnstableProviderOrThrow( 665 resolver, doc.derivedUri.getAuthority()); 666 DocumentsContract.deleteDocument(client, doc.derivedUri); 667 } catch (Exception e) { 668 Log.w(TAG, "Failed to delete " + doc); 669 hadTrouble = true; 670 } finally { 671 ContentProviderClient.releaseQuietly(client); 672 } 673 } 674 675 if (hadTrouble) { 676 Toast.makeText(context, R.string.toast_failed_delete, Toast.LENGTH_SHORT).show(); 677 } 678 } 679 680 private void onCopyDocuments(List<DocumentInfo> docs) { 681 mSelectedDocumentsForCopy = docs; 682 683 // Pop up a dialog to pick a destination. This is inadequate but works for now. 684 // TODO: Implement a picker that is to spec. 685 final Intent intent = new Intent( 686 BaseActivity.ACTION_OPEN_COPY_DESTINATION_STRING, 687 Uri.EMPTY, 688 getActivity(), 689 DocumentsActivity.class); 690 boolean directoryCopy = false; 691 for (DocumentInfo info : docs) { 692 if (Document.MIME_TYPE_DIR.equals(info.mimeType)) { 693 directoryCopy = true; 694 break; 695 } 696 } 697 intent.putExtra(BaseActivity.EXTRA_DIRECTORY_COPY, directoryCopy); 698 startActivityForResult(intent, REQUEST_COPY_DESTINATION); 699 } 700 701 private static State getDisplayState(Fragment fragment) { 702 return ((BaseActivity) fragment.getActivity()).getDisplayState(); 703 } 704 705 private static abstract class Footer { 706 private final int mItemViewType; 707 708 public Footer(int itemViewType) { 709 mItemViewType = itemViewType; 710 } 711 712 public abstract View getView(View convertView, ViewGroup parent); 713 714 public int getItemViewType() { 715 return mItemViewType; 716 } 717 } 718 719 private class LoadingFooter extends Footer { 720 public LoadingFooter() { 721 super(1); 722 } 723 724 @Override 725 public View getView(View convertView, ViewGroup parent) { 726 final Context context = parent.getContext(); 727 final State state = getDisplayState(DirectoryFragment.this); 728 729 if (convertView == null) { 730 final LayoutInflater inflater = LayoutInflater.from(context); 731 if (state.derivedMode == MODE_LIST) { 732 convertView = inflater.inflate(R.layout.item_loading_list, parent, false); 733 } else if (state.derivedMode == MODE_GRID) { 734 convertView = inflater.inflate(R.layout.item_loading_grid, parent, false); 735 } else { 736 throw new IllegalStateException(); 737 } 738 } 739 740 return convertView; 741 } 742 } 743 744 private class MessageFooter extends Footer { 745 private final int mIcon; 746 private final String mMessage; 747 748 public MessageFooter(int itemViewType, int icon, String message) { 749 super(itemViewType); 750 mIcon = icon; 751 mMessage = message; 752 } 753 754 @Override 755 public View getView(View convertView, ViewGroup parent) { 756 final Context context = parent.getContext(); 757 final State state = getDisplayState(DirectoryFragment.this); 758 759 if (convertView == null) { 760 final LayoutInflater inflater = LayoutInflater.from(context); 761 if (state.derivedMode == MODE_LIST) { 762 convertView = inflater.inflate(R.layout.item_message_list, parent, false); 763 } else if (state.derivedMode == MODE_GRID) { 764 convertView = inflater.inflate(R.layout.item_message_grid, parent, false); 765 } else { 766 throw new IllegalStateException(); 767 } 768 } 769 770 final ImageView icon = (ImageView) convertView.findViewById(android.R.id.icon); 771 final TextView title = (TextView) convertView.findViewById(android.R.id.title); 772 icon.setImageResource(mIcon); 773 title.setText(mMessage); 774 return convertView; 775 } 776 } 777 778 private class DocumentsAdapter extends BaseAdapter { 779 private Cursor mCursor; 780 private int mCursorCount; 781 782 private List<Footer> mFooters = Lists.newArrayList(); 783 784 public void swapResult(DirectoryResult result) { 785 mCursor = result != null ? result.cursor : null; 786 mCursorCount = mCursor != null ? mCursor.getCount() : 0; 787 788 mFooters.clear(); 789 790 final Bundle extras = mCursor != null ? mCursor.getExtras() : null; 791 if (extras != null) { 792 final String info = extras.getString(DocumentsContract.EXTRA_INFO); 793 if (info != null) { 794 mFooters.add(new MessageFooter(2, R.drawable.ic_dialog_info, info)); 795 } 796 final String error = extras.getString(DocumentsContract.EXTRA_ERROR); 797 if (error != null) { 798 mFooters.add(new MessageFooter(3, R.drawable.ic_dialog_alert, error)); 799 } 800 if (extras.getBoolean(DocumentsContract.EXTRA_LOADING, false)) { 801 mFooters.add(new LoadingFooter()); 802 } 803 } 804 805 if (result != null && result.exception != null) { 806 mFooters.add(new MessageFooter( 807 3, R.drawable.ic_dialog_alert, getString(R.string.query_error))); 808 } 809 810 if (isEmpty()) { 811 mEmptyView.setVisibility(View.VISIBLE); 812 } else { 813 mEmptyView.setVisibility(View.GONE); 814 } 815 816 notifyDataSetChanged(); 817 } 818 819 @Override 820 public View getView(int position, View convertView, ViewGroup parent) { 821 if (position < mCursorCount) { 822 return getDocumentView(position, convertView, parent); 823 } else { 824 position -= mCursorCount; 825 convertView = mFooters.get(position).getView(convertView, parent); 826 // Only the view itself is disabled; contents inside shouldn't 827 // be dimmed. 828 convertView.setEnabled(false); 829 return convertView; 830 } 831 } 832 833 private View getDocumentView(int position, View convertView, ViewGroup parent) { 834 final Context context = parent.getContext(); 835 final State state = getDisplayState(DirectoryFragment.this); 836 837 final DocumentInfo doc = getArguments().getParcelable(EXTRA_DOC); 838 839 final RootsCache roots = DocumentsApplication.getRootsCache(context); 840 final ThumbnailCache thumbs = DocumentsApplication.getThumbnailsCache( 841 context, mThumbSize); 842 843 if (convertView == null) { 844 final LayoutInflater inflater = LayoutInflater.from(context); 845 if (state.derivedMode == MODE_LIST) { 846 convertView = inflater.inflate(R.layout.item_doc_list, parent, false); 847 } else if (state.derivedMode == MODE_GRID) { 848 convertView = inflater.inflate(R.layout.item_doc_grid, parent, false); 849 } else { 850 throw new IllegalStateException(); 851 } 852 } 853 854 final Cursor cursor = getItem(position); 855 856 final String docAuthority = getCursorString(cursor, RootCursorWrapper.COLUMN_AUTHORITY); 857 final String docRootId = getCursorString(cursor, RootCursorWrapper.COLUMN_ROOT_ID); 858 final String docId = getCursorString(cursor, Document.COLUMN_DOCUMENT_ID); 859 final String docMimeType = getCursorString(cursor, Document.COLUMN_MIME_TYPE); 860 final String docDisplayName = getCursorString(cursor, Document.COLUMN_DISPLAY_NAME); 861 final long docLastModified = getCursorLong(cursor, Document.COLUMN_LAST_MODIFIED); 862 final int docIcon = getCursorInt(cursor, Document.COLUMN_ICON); 863 final int docFlags = getCursorInt(cursor, Document.COLUMN_FLAGS); 864 final String docSummary = getCursorString(cursor, Document.COLUMN_SUMMARY); 865 final long docSize = getCursorLong(cursor, Document.COLUMN_SIZE); 866 867 final View line1 = convertView.findViewById(R.id.line1); 868 final View line2 = convertView.findViewById(R.id.line2); 869 870 final ImageView iconMime = (ImageView) convertView.findViewById(R.id.icon_mime); 871 final ImageView iconThumb = (ImageView) convertView.findViewById(R.id.icon_thumb); 872 final TextView title = (TextView) convertView.findViewById(android.R.id.title); 873 final ImageView icon1 = (ImageView) convertView.findViewById(android.R.id.icon1); 874 final ImageView icon2 = (ImageView) convertView.findViewById(android.R.id.icon2); 875 final TextView summary = (TextView) convertView.findViewById(android.R.id.summary); 876 final TextView date = (TextView) convertView.findViewById(R.id.date); 877 final TextView size = (TextView) convertView.findViewById(R.id.size); 878 879 final ThumbnailAsyncTask oldTask = (ThumbnailAsyncTask) iconThumb.getTag(); 880 if (oldTask != null) { 881 oldTask.preempt(); 882 iconThumb.setTag(null); 883 } 884 885 iconMime.animate().cancel(); 886 iconThumb.animate().cancel(); 887 888 final boolean supportsThumbnail = (docFlags & Document.FLAG_SUPPORTS_THUMBNAIL) != 0; 889 final boolean allowThumbnail = (state.derivedMode == MODE_GRID) 890 || MimePredicate.mimeMatches(MimePredicate.VISUAL_MIMES, docMimeType); 891 final boolean showThumbnail = supportsThumbnail && allowThumbnail && !mSvelteRecents; 892 893 final boolean enabled = isDocumentEnabled(docMimeType, docFlags); 894 final float iconAlpha = (state.derivedMode == MODE_LIST && !enabled) ? 0.5f : 1f; 895 896 boolean cacheHit = false; 897 if (showThumbnail) { 898 final Uri uri = DocumentsContract.buildDocumentUri(docAuthority, docId); 899 final Bitmap cachedResult = thumbs.get(uri); 900 if (cachedResult != null) { 901 iconThumb.setImageBitmap(cachedResult); 902 cacheHit = true; 903 } else { 904 iconThumb.setImageDrawable(null); 905 final ThumbnailAsyncTask task = new ThumbnailAsyncTask( 906 uri, iconMime, iconThumb, mThumbSize, iconAlpha); 907 iconThumb.setTag(task); 908 ProviderExecutor.forAuthority(docAuthority).execute(task); 909 } 910 } 911 912 // Always throw MIME icon into place, even when a thumbnail is being 913 // loaded in background. 914 if (cacheHit) { 915 iconMime.setAlpha(0f); 916 iconMime.setImageDrawable(null); 917 iconThumb.setAlpha(1f); 918 } else { 919 iconMime.setAlpha(1f); 920 iconThumb.setAlpha(0f); 921 iconThumb.setImageDrawable(null); 922 if (docIcon != 0) { 923 iconMime.setImageDrawable( 924 IconUtils.loadPackageIcon(context, docAuthority, docIcon)); 925 } else { 926 iconMime.setImageDrawable(IconUtils.loadMimeIcon( 927 context, docMimeType, docAuthority, docId, state.derivedMode)); 928 } 929 } 930 931 boolean hasLine1 = false; 932 boolean hasLine2 = false; 933 934 final boolean hideTitle = (state.derivedMode == MODE_GRID) && mHideGridTitles; 935 if (!hideTitle) { 936 title.setText(docDisplayName); 937 hasLine1 = true; 938 } 939 940 Drawable iconDrawable = null; 941 if (mType == TYPE_RECENT_OPEN) { 942 // We've already had to enumerate roots before any results can 943 // be shown, so this will never block. 944 final RootInfo root = roots.getRootBlocking(docAuthority, docRootId); 945 if (state.derivedMode == MODE_GRID) { 946 iconDrawable = root.loadGridIcon(context); 947 } else { 948 iconDrawable = root.loadIcon(context); 949 } 950 951 if (summary != null) { 952 final boolean alwaysShowSummary = getResources() 953 .getBoolean(R.bool.always_show_summary); 954 if (alwaysShowSummary) { 955 summary.setText(root.getDirectoryString()); 956 summary.setVisibility(View.VISIBLE); 957 hasLine2 = true; 958 } else { 959 if (iconDrawable != null && roots.isIconUniqueBlocking(root)) { 960 // No summary needed if icon speaks for itself 961 summary.setVisibility(View.INVISIBLE); 962 } else { 963 summary.setText(root.getDirectoryString()); 964 summary.setVisibility(View.VISIBLE); 965 summary.setTextAlignment(TextView.TEXT_ALIGNMENT_TEXT_END); 966 hasLine2 = true; 967 } 968 } 969 } 970 } else { 971 // Directories showing thumbnails in grid mode get a little icon 972 // hint to remind user they're a directory. 973 if (Document.MIME_TYPE_DIR.equals(docMimeType) && state.derivedMode == MODE_GRID 974 && showThumbnail) { 975 iconDrawable = IconUtils.applyTintAttr(context, R.drawable.ic_doc_folder, 976 android.R.attr.textColorPrimaryInverse); 977 } 978 979 if (summary != null) { 980 if (docSummary != null) { 981 summary.setText(docSummary); 982 summary.setVisibility(View.VISIBLE); 983 hasLine2 = true; 984 } else { 985 summary.setVisibility(View.INVISIBLE); 986 } 987 } 988 } 989 990 if (icon1 != null) icon1.setVisibility(View.GONE); 991 if (icon2 != null) icon2.setVisibility(View.GONE); 992 993 if (iconDrawable != null) { 994 if (hasLine1) { 995 icon1.setVisibility(View.VISIBLE); 996 icon1.setImageDrawable(iconDrawable); 997 } else { 998 icon2.setVisibility(View.VISIBLE); 999 icon2.setImageDrawable(iconDrawable); 1000 } 1001 } 1002 1003 if (docLastModified == -1) { 1004 date.setText(null); 1005 } else { 1006 date.setText(formatTime(context, docLastModified)); 1007 hasLine2 = true; 1008 } 1009 1010 if (state.showSize) { 1011 size.setVisibility(View.VISIBLE); 1012 if (Document.MIME_TYPE_DIR.equals(docMimeType) || docSize == -1) { 1013 size.setText(null); 1014 } else { 1015 size.setText(Formatter.formatFileSize(context, docSize)); 1016 hasLine2 = true; 1017 } 1018 } else { 1019 size.setVisibility(View.GONE); 1020 } 1021 1022 if (line1 != null) { 1023 line1.setVisibility(hasLine1 ? View.VISIBLE : View.GONE); 1024 } 1025 if (line2 != null) { 1026 line2.setVisibility(hasLine2 ? View.VISIBLE : View.GONE); 1027 } 1028 1029 setEnabledRecursive(convertView, enabled); 1030 1031 iconMime.setAlpha(iconAlpha); 1032 iconThumb.setAlpha(iconAlpha); 1033 if (icon1 != null) icon1.setAlpha(iconAlpha); 1034 if (icon2 != null) icon2.setAlpha(iconAlpha); 1035 1036 return convertView; 1037 } 1038 1039 @Override 1040 public int getCount() { 1041 return mCursorCount + mFooters.size(); 1042 } 1043 1044 @Override 1045 public Cursor getItem(int position) { 1046 if (position < mCursorCount) { 1047 mCursor.moveToPosition(position); 1048 return mCursor; 1049 } else { 1050 return null; 1051 } 1052 } 1053 1054 @Override 1055 public long getItemId(int position) { 1056 return position; 1057 } 1058 1059 @Override 1060 public int getViewTypeCount() { 1061 return 4; 1062 } 1063 1064 @Override 1065 public int getItemViewType(int position) { 1066 if (position < mCursorCount) { 1067 return 0; 1068 } else { 1069 position -= mCursorCount; 1070 return mFooters.get(position).getItemViewType(); 1071 } 1072 } 1073 } 1074 1075 private static class ThumbnailAsyncTask extends AsyncTask<Uri, Void, Bitmap> 1076 implements Preemptable { 1077 private final Uri mUri; 1078 private final ImageView mIconMime; 1079 private final ImageView mIconThumb; 1080 private final Point mThumbSize; 1081 private final float mTargetAlpha; 1082 private final CancellationSignal mSignal; 1083 1084 public ThumbnailAsyncTask(Uri uri, ImageView iconMime, ImageView iconThumb, Point thumbSize, 1085 float targetAlpha) { 1086 mUri = uri; 1087 mIconMime = iconMime; 1088 mIconThumb = iconThumb; 1089 mThumbSize = thumbSize; 1090 mTargetAlpha = targetAlpha; 1091 mSignal = new CancellationSignal(); 1092 } 1093 1094 @Override 1095 public void preempt() { 1096 cancel(false); 1097 mSignal.cancel(); 1098 } 1099 1100 @Override 1101 protected Bitmap doInBackground(Uri... params) { 1102 if (isCancelled()) return null; 1103 1104 final Context context = mIconThumb.getContext(); 1105 final ContentResolver resolver = context.getContentResolver(); 1106 1107 ContentProviderClient client = null; 1108 Bitmap result = null; 1109 try { 1110 client = DocumentsApplication.acquireUnstableProviderOrThrow( 1111 resolver, mUri.getAuthority()); 1112 result = DocumentsContract.getDocumentThumbnail(client, mUri, mThumbSize, mSignal); 1113 if (result != null) { 1114 final ThumbnailCache thumbs = DocumentsApplication.getThumbnailsCache( 1115 context, mThumbSize); 1116 thumbs.put(mUri, result); 1117 } 1118 } catch (Exception e) { 1119 if (!(e instanceof OperationCanceledException)) { 1120 Log.w(TAG, "Failed to load thumbnail for " + mUri + ": " + e); 1121 } 1122 } finally { 1123 ContentProviderClient.releaseQuietly(client); 1124 } 1125 return result; 1126 } 1127 1128 @Override 1129 protected void onPostExecute(Bitmap result) { 1130 if (mIconThumb.getTag() == this && result != null) { 1131 mIconThumb.setTag(null); 1132 mIconThumb.setImageBitmap(result); 1133 1134 mIconMime.setAlpha(mTargetAlpha); 1135 mIconMime.animate().alpha(0f).start(); 1136 mIconThumb.setAlpha(0f); 1137 mIconThumb.animate().alpha(mTargetAlpha).start(); 1138 } 1139 } 1140 } 1141 1142 private static String formatTime(Context context, long when) { 1143 // TODO: DateUtils should make this easier 1144 Time then = new Time(); 1145 then.set(when); 1146 Time now = new Time(); 1147 now.setToNow(); 1148 1149 int flags = DateUtils.FORMAT_NO_NOON | DateUtils.FORMAT_NO_MIDNIGHT 1150 | DateUtils.FORMAT_ABBREV_ALL; 1151 1152 if (then.year != now.year) { 1153 flags |= DateUtils.FORMAT_SHOW_YEAR | DateUtils.FORMAT_SHOW_DATE; 1154 } else if (then.yearDay != now.yearDay) { 1155 flags |= DateUtils.FORMAT_SHOW_DATE; 1156 } else { 1157 flags |= DateUtils.FORMAT_SHOW_TIME; 1158 } 1159 1160 return DateUtils.formatDateTime(context, when, flags); 1161 } 1162 1163 private String findCommonMimeType(List<String> mimeTypes) { 1164 String[] commonType = mimeTypes.get(0).split("/"); 1165 if (commonType.length != 2) { 1166 return "*/*"; 1167 } 1168 1169 for (int i = 1; i < mimeTypes.size(); i++) { 1170 String[] type = mimeTypes.get(i).split("/"); 1171 if (type.length != 2) continue; 1172 1173 if (!commonType[1].equals(type[1])) { 1174 commonType[1] = "*"; 1175 } 1176 1177 if (!commonType[0].equals(type[0])) { 1178 commonType[0] = "*"; 1179 commonType[1] = "*"; 1180 break; 1181 } 1182 } 1183 1184 return commonType[0] + "/" + commonType[1]; 1185 } 1186 1187 private void setEnabledRecursive(View v, boolean enabled) { 1188 if (v == null) return; 1189 if (v.isEnabled() == enabled) return; 1190 v.setEnabled(enabled); 1191 1192 if (v instanceof ViewGroup) { 1193 final ViewGroup vg = (ViewGroup) v; 1194 for (int i = vg.getChildCount() - 1; i >= 0; i--) { 1195 setEnabledRecursive(vg.getChildAt(i), enabled); 1196 } 1197 } 1198 } 1199 1200 private boolean isDocumentEnabled(String docMimeType, int docFlags) { 1201 final State state = getDisplayState(DirectoryFragment.this); 1202 1203 // Directories are always enabled 1204 if (Document.MIME_TYPE_DIR.equals(docMimeType)) { 1205 return true; 1206 } 1207 1208 // Read-only files are disabled when creating 1209 if (state.action == ACTION_CREATE && (docFlags & Document.FLAG_SUPPORTS_WRITE) == 0) { 1210 return false; 1211 } 1212 1213 return MimePredicate.mimeMatches(state.acceptMimes, docMimeType); 1214 } 1215} 1216