DirectoryFragment.java revision 726cf70fd4e436ba0ba5fff1a42e5c726a9786c5
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.DocumentsActivity.TAG; 20import static com.android.documentsui.BaseActivity.State.ACTION_CREATE; 21import static com.android.documentsui.BaseActivity.State.ACTION_MANAGE; 22import static com.android.documentsui.BaseActivity.State.MODE_GRID; 23import static com.android.documentsui.BaseActivity.State.MODE_LIST; 24import static com.android.documentsui.BaseActivity.State.MODE_UNKNOWN; 25import static com.android.documentsui.BaseActivity.State.SORT_ORDER_UNKNOWN; 26import static com.android.documentsui.model.DocumentInfo.getCursorInt; 27import static com.android.documentsui.model.DocumentInfo.getCursorLong; 28import static com.android.documentsui.model.DocumentInfo.getCursorString; 29 30import android.app.Activity; 31import android.app.ActivityManager; 32import android.app.Fragment; 33import android.app.FragmentManager; 34import android.app.FragmentTransaction; 35import android.app.LoaderManager.LoaderCallbacks; 36import android.content.ContentProviderClient; 37import android.content.ContentResolver; 38import android.content.ContentValues; 39import android.content.Context; 40import android.content.Intent; 41import android.content.Loader; 42import android.content.res.Resources; 43import android.database.Cursor; 44import android.graphics.Bitmap; 45import android.graphics.Point; 46import android.graphics.drawable.Drawable; 47import android.graphics.drawable.InsetDrawable; 48import android.net.Uri; 49import android.os.AsyncTask; 50import android.os.Bundle; 51import android.os.CancellationSignal; 52import android.os.OperationCanceledException; 53import android.os.Parcelable; 54import android.os.SystemProperties; 55import android.provider.DocumentsContract; 56import android.provider.DocumentsContract.Document; 57import android.text.format.DateUtils; 58import android.text.format.Formatter; 59import android.text.format.Time; 60import android.util.Log; 61import android.util.SparseArray; 62import android.util.SparseBooleanArray; 63import android.view.ActionMode; 64import android.view.LayoutInflater; 65import android.view.Menu; 66import android.view.MenuItem; 67import android.view.View; 68import android.view.ViewGroup; 69import android.widget.AbsListView; 70import android.widget.AbsListView.MultiChoiceModeListener; 71import android.widget.AbsListView.RecyclerListener; 72import android.widget.AdapterView; 73import android.widget.AdapterView.OnItemClickListener; 74import android.widget.BaseAdapter; 75import android.widget.GridView; 76import android.widget.ImageView; 77import android.widget.ListView; 78import android.widget.TextView; 79import android.widget.Toast; 80 81import com.android.documentsui.BaseActivity.State; 82import com.android.documentsui.CopyService; 83import com.android.documentsui.ProviderExecutor.Preemptable; 84import com.android.documentsui.RecentsProvider.StateColumns; 85import com.android.documentsui.model.DocumentInfo; 86import com.android.documentsui.model.RootInfo; 87import com.google.android.collect.Lists; 88 89import java.util.ArrayList; 90import java.util.List; 91 92/** 93 * Display the documents inside a single directory. 94 */ 95public class DirectoryFragment extends Fragment { 96 97 private View mEmptyView; 98 private ListView mListView; 99 private GridView mGridView; 100 101 private AbsListView mCurrentView; 102 103 private List<DocumentInfo> mSelectedDocumentsForCopy; 104 105 public static final int TYPE_NORMAL = 1; 106 public static final int TYPE_SEARCH = 2; 107 public static final int TYPE_RECENT_OPEN = 3; 108 109 public static final int ANIM_NONE = 1; 110 public static final int ANIM_SIDE = 2; 111 public static final int ANIM_DOWN = 3; 112 public static final int ANIM_UP = 4; 113 114 public static final int REQUEST_COPY_DESTINATION = 1; 115 116 private int mType = TYPE_NORMAL; 117 private String mStateKey; 118 119 private int mLastMode = MODE_UNKNOWN; 120 private int mLastSortOrder = SORT_ORDER_UNKNOWN; 121 private boolean mLastShowSize = false; 122 123 private boolean mHideGridTitles = false; 124 125 private boolean mSvelteRecents; 126 private Point mThumbSize; 127 128 private DocumentsAdapter mAdapter; 129 private LoaderCallbacks<DirectoryResult> mCallbacks; 130 131 private static final String EXTRA_TYPE = "type"; 132 private static final String EXTRA_ROOT = "root"; 133 private static final String EXTRA_DOC = "doc"; 134 private static final String EXTRA_QUERY = "query"; 135 private static final String EXTRA_IGNORE_STATE = "ignoreState"; 136 137 private final int mLoaderId = 42; 138 139 public static void showNormal(FragmentManager fm, RootInfo root, DocumentInfo doc, int anim) { 140 show(fm, TYPE_NORMAL, root, doc, null, anim); 141 } 142 143 public static void showSearch(FragmentManager fm, RootInfo root, String query, int anim) { 144 show(fm, TYPE_SEARCH, root, null, query, anim); 145 } 146 147 public static void showRecentsOpen(FragmentManager fm, int anim) { 148 show(fm, TYPE_RECENT_OPEN, null, null, null, anim); 149 } 150 151 private static void show(FragmentManager fm, int type, RootInfo root, DocumentInfo doc, 152 String query, int anim) { 153 final Bundle args = new Bundle(); 154 args.putInt(EXTRA_TYPE, type); 155 args.putParcelable(EXTRA_ROOT, root); 156 args.putParcelable(EXTRA_DOC, doc); 157 args.putString(EXTRA_QUERY, query); 158 159 final FragmentTransaction ft = fm.beginTransaction(); 160 switch (anim) { 161 case ANIM_SIDE: 162 args.putBoolean(EXTRA_IGNORE_STATE, true); 163 break; 164 case ANIM_DOWN: 165 args.putBoolean(EXTRA_IGNORE_STATE, true); 166 ft.setCustomAnimations(R.animator.dir_down, R.animator.dir_frozen); 167 break; 168 case ANIM_UP: 169 ft.setCustomAnimations(R.animator.dir_frozen, R.animator.dir_up); 170 break; 171 } 172 173 final DirectoryFragment fragment = new DirectoryFragment(); 174 fragment.setArguments(args); 175 176 ft.replace(R.id.container_directory, fragment); 177 ft.commitAllowingStateLoss(); 178 } 179 180 private static String buildStateKey(RootInfo root, DocumentInfo doc) { 181 final StringBuilder builder = new StringBuilder(); 182 builder.append(root != null ? root.authority : "null").append(';'); 183 builder.append(root != null ? root.rootId : "null").append(';'); 184 builder.append(doc != null ? doc.documentId : "null"); 185 return builder.toString(); 186 } 187 188 public static DirectoryFragment get(FragmentManager fm) { 189 // TODO: deal with multiple directories shown at once 190 return (DirectoryFragment) fm.findFragmentById(R.id.container_directory); 191 } 192 193 @Override 194 public View onCreateView( 195 LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { 196 final Context context = inflater.getContext(); 197 final Resources res = context.getResources(); 198 final View view = inflater.inflate(R.layout.fragment_directory, container, false); 199 200 mEmptyView = view.findViewById(android.R.id.empty); 201 202 mListView = (ListView) view.findViewById(R.id.list); 203 mListView.setOnItemClickListener(mItemListener); 204 mListView.setMultiChoiceModeListener(mMultiListener); 205 mListView.setRecyclerListener(mRecycleListener); 206 207 // Indent our list divider to align with text 208 final Drawable divider = mListView.getDivider(); 209 final boolean insetLeft = res.getBoolean(R.bool.list_divider_inset_left); 210 final int insetSize = res.getDimensionPixelSize(R.dimen.list_divider_inset); 211 if (insetLeft) { 212 mListView.setDivider(new InsetDrawable(divider, insetSize, 0, 0, 0)); 213 } else { 214 mListView.setDivider(new InsetDrawable(divider, 0, 0, insetSize, 0)); 215 } 216 217 mGridView = (GridView) view.findViewById(R.id.grid); 218 mGridView.setOnItemClickListener(mItemListener); 219 mGridView.setMultiChoiceModeListener(mMultiListener); 220 mGridView.setRecyclerListener(mRecycleListener); 221 222 return view; 223 } 224 225 @Override 226 public void onDestroyView() { 227 super.onDestroyView(); 228 229 // Cancel any outstanding thumbnail requests 230 final ViewGroup target = (mListView.getAdapter() != null) ? mListView : mGridView; 231 final int count = target.getChildCount(); 232 for (int i = 0; i < count; i++) { 233 final View view = target.getChildAt(i); 234 mRecycleListener.onMovedToScrapHeap(view); 235 } 236 237 // Tear down any selection in progress 238 mListView.setChoiceMode(AbsListView.CHOICE_MODE_NONE); 239 mGridView.setChoiceMode(AbsListView.CHOICE_MODE_NONE); 240 } 241 242 @Override 243 public void onActivityCreated(Bundle savedInstanceState) { 244 super.onActivityCreated(savedInstanceState); 245 246 final Context context = getActivity(); 247 final State state = getDisplayState(DirectoryFragment.this); 248 249 final RootInfo root = getArguments().getParcelable(EXTRA_ROOT); 250 final DocumentInfo doc = getArguments().getParcelable(EXTRA_DOC); 251 252 mAdapter = new DocumentsAdapter(); 253 mType = getArguments().getInt(EXTRA_TYPE); 254 mStateKey = buildStateKey(root, doc); 255 256 if (mType == TYPE_RECENT_OPEN) { 257 // Hide titles when showing recents for picking images/videos 258 mHideGridTitles = MimePredicate.mimeMatches( 259 MimePredicate.VISUAL_MIMES, state.acceptMimes); 260 } else { 261 mHideGridTitles = (doc != null) && doc.isGridTitlesHidden(); 262 } 263 264 final ActivityManager am = (ActivityManager) context.getSystemService( 265 Context.ACTIVITY_SERVICE); 266 mSvelteRecents = am.isLowRamDevice() && (mType == TYPE_RECENT_OPEN); 267 268 mCallbacks = new LoaderCallbacks<DirectoryResult>() { 269 @Override 270 public Loader<DirectoryResult> onCreateLoader(int id, Bundle args) { 271 final String query = getArguments().getString(EXTRA_QUERY); 272 273 Uri contentsUri; 274 switch (mType) { 275 case TYPE_NORMAL: 276 contentsUri = DocumentsContract.buildChildDocumentsUri( 277 doc.authority, doc.documentId); 278 if (state.action == ACTION_MANAGE) { 279 contentsUri = DocumentsContract.setManageMode(contentsUri); 280 } 281 return new DirectoryLoader( 282 context, mType, root, doc, contentsUri, state.userSortOrder); 283 case TYPE_SEARCH: 284 contentsUri = DocumentsContract.buildSearchDocumentsUri( 285 root.authority, root.rootId, query); 286 if (state.action == ACTION_MANAGE) { 287 contentsUri = DocumentsContract.setManageMode(contentsUri); 288 } 289 return new DirectoryLoader( 290 context, mType, root, doc, contentsUri, state.userSortOrder); 291 case TYPE_RECENT_OPEN: 292 final RootsCache roots = DocumentsApplication.getRootsCache(context); 293 return new RecentLoader(context, roots, state); 294 default: 295 throw new IllegalStateException("Unknown type " + mType); 296 } 297 } 298 299 @Override 300 public void onLoadFinished(Loader<DirectoryResult> loader, DirectoryResult result) { 301 if (!isAdded()) return; 302 303 mAdapter.swapResult(result); 304 305 // Push latest state up to UI 306 // TODO: if mode change was racing with us, don't overwrite it 307 if (result.mode != MODE_UNKNOWN) { 308 state.derivedMode = result.mode; 309 } 310 state.derivedSortOrder = result.sortOrder; 311 ((BaseActivity) context).onStateChanged(); 312 313 updateDisplayState(); 314 315 // When launched into empty recents, show drawer 316 if (mType == TYPE_RECENT_OPEN && mAdapter.isEmpty() && !state.stackTouched) { 317 ((BaseActivity) context).setRootsDrawerOpen(true); 318 } 319 320 // Restore any previous instance state 321 final SparseArray<Parcelable> container = state.dirState.remove(mStateKey); 322 if (container != null && !getArguments().getBoolean(EXTRA_IGNORE_STATE, false)) { 323 getView().restoreHierarchyState(container); 324 } else if (mLastSortOrder != state.derivedSortOrder) { 325 mListView.smoothScrollToPosition(0); 326 mGridView.smoothScrollToPosition(0); 327 } 328 329 mLastSortOrder = state.derivedSortOrder; 330 } 331 332 @Override 333 public void onLoaderReset(Loader<DirectoryResult> loader) { 334 mAdapter.swapResult(null); 335 } 336 }; 337 338 // Kick off loader at least once 339 getLoaderManager().restartLoader(mLoaderId, null, mCallbacks); 340 341 updateDisplayState(); 342 } 343 344 @Override 345 public void onActivityResult(int requestCode, int resultCode, Intent data) { 346 final Context context = getActivity(); 347 final Resources res = context.getResources(); 348 349 // There's only one request code right now. Replace this with a switch statement or 350 // something more scalable when more codes are added. 351 if (requestCode != REQUEST_COPY_DESTINATION) { 352 return; 353 } 354 if (resultCode == Activity.RESULT_CANCELED || data == null) { 355 // User pressed the back button or otherwise cancelled the destination pick. Don't 356 // proceed with the copy. 357 return; 358 } 359 360 // Because the destination picker is launched using an open tree intent, the URI returned is 361 // a tree URI. Convert it to a document URI. 362 // TODO: Remove this step when the destination picker returns a document URI. 363 final Uri destinationTree = data.getData(); 364 final Uri destination = DocumentsContract.buildDocumentUriUsingTree(destinationTree, 365 DocumentsContract.getTreeDocumentId(destinationTree)); 366 367 List<DocumentInfo> docs = mSelectedDocumentsForCopy; 368 Intent copyIntent = new Intent(context, CopyService.class); 369 copyIntent.putParcelableArrayListExtra(CopyService.EXTRA_SRC_LIST, 370 new ArrayList<DocumentInfo>(docs)); 371 copyIntent.setData(destination); 372 373 Toast.makeText(context, 374 res.getQuantityString(R.plurals.copy_begin, docs.size(), docs.size()), 375 Toast.LENGTH_SHORT).show(); 376 context.startService(copyIntent); 377 } 378 379 @Override 380 public void onStop() { 381 super.onStop(); 382 383 // Remember last scroll location 384 final SparseArray<Parcelable> container = new SparseArray<Parcelable>(); 385 getView().saveHierarchyState(container); 386 final State state = getDisplayState(this); 387 state.dirState.put(mStateKey, container); 388 } 389 390 @Override 391 public void onResume() { 392 super.onResume(); 393 updateDisplayState(); 394 } 395 396 public void onDisplayStateChanged() { 397 updateDisplayState(); 398 } 399 400 public void onUserSortOrderChanged() { 401 // Sort order change always triggers reload; we'll trigger state change 402 // on the flip side. 403 getLoaderManager().restartLoader(mLoaderId, null, mCallbacks); 404 } 405 406 public void onUserModeChanged() { 407 final ContentResolver resolver = getActivity().getContentResolver(); 408 final State state = getDisplayState(this); 409 410 final RootInfo root = getArguments().getParcelable(EXTRA_ROOT); 411 final DocumentInfo doc = getArguments().getParcelable(EXTRA_DOC); 412 413 if (root != null && doc != null) { 414 final Uri stateUri = RecentsProvider.buildState( 415 root.authority, root.rootId, doc.documentId); 416 final ContentValues values = new ContentValues(); 417 values.put(StateColumns.MODE, state.userMode); 418 419 new AsyncTask<Void, Void, Void>() { 420 @Override 421 protected Void doInBackground(Void... params) { 422 resolver.insert(stateUri, values); 423 return null; 424 } 425 }.execute(); 426 } 427 428 // Mode change is just visual change; no need to kick loader, and 429 // deliver change event immediately. 430 state.derivedMode = state.userMode; 431 ((BaseActivity) getActivity()).onStateChanged(); 432 433 updateDisplayState(); 434 } 435 436 private void updateDisplayState() { 437 final State state = getDisplayState(this); 438 439 if (mLastMode == state.derivedMode && mLastShowSize == state.showSize) return; 440 mLastMode = state.derivedMode; 441 mLastShowSize = state.showSize; 442 443 mListView.setVisibility(state.derivedMode == MODE_LIST ? View.VISIBLE : View.GONE); 444 mGridView.setVisibility(state.derivedMode == MODE_GRID ? View.VISIBLE : View.GONE); 445 446 final int choiceMode; 447 if (state.allowMultiple) { 448 choiceMode = ListView.CHOICE_MODE_MULTIPLE_MODAL; 449 } else { 450 choiceMode = ListView.CHOICE_MODE_NONE; 451 } 452 453 final int thumbSize; 454 if (state.derivedMode == MODE_GRID) { 455 thumbSize = getResources().getDimensionPixelSize(R.dimen.grid_width); 456 mListView.setAdapter(null); 457 mListView.setChoiceMode(ListView.CHOICE_MODE_NONE); 458 mGridView.setAdapter(mAdapter); 459 mGridView.setColumnWidth(getResources().getDimensionPixelSize(R.dimen.grid_width)); 460 mGridView.setNumColumns(GridView.AUTO_FIT); 461 mGridView.setChoiceMode(choiceMode); 462 mCurrentView = mGridView; 463 } else if (state.derivedMode == MODE_LIST) { 464 thumbSize = getResources().getDimensionPixelSize(R.dimen.icon_size); 465 mGridView.setAdapter(null); 466 mGridView.setChoiceMode(ListView.CHOICE_MODE_NONE); 467 mListView.setAdapter(mAdapter); 468 mListView.setChoiceMode(choiceMode); 469 mCurrentView = mListView; 470 } else { 471 throw new IllegalStateException("Unknown state " + state.derivedMode); 472 } 473 474 mThumbSize = new Point(thumbSize, thumbSize); 475 } 476 477 private OnItemClickListener mItemListener = new OnItemClickListener() { 478 @Override 479 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 480 final Cursor cursor = mAdapter.getItem(position); 481 if (cursor != null) { 482 final String docMimeType = getCursorString(cursor, Document.COLUMN_MIME_TYPE); 483 final int docFlags = getCursorInt(cursor, Document.COLUMN_FLAGS); 484 if (isDocumentEnabled(docMimeType, docFlags)) { 485 final DocumentInfo doc = DocumentInfo.fromDirectoryCursor(cursor); 486 ((BaseActivity) getActivity()).onDocumentPicked(doc); 487 } 488 } 489 } 490 }; 491 492 private MultiChoiceModeListener mMultiListener = new MultiChoiceModeListener() { 493 @Override 494 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 495 mode.getMenuInflater().inflate(R.menu.mode_directory, menu); 496 mode.setTitle(getResources() 497 .getString(R.string.mode_selected_count, mCurrentView.getCheckedItemCount())); 498 return true; 499 } 500 501 @Override 502 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 503 final State state = getDisplayState(DirectoryFragment.this); 504 505 final MenuItem open = menu.findItem(R.id.menu_open); 506 final MenuItem share = menu.findItem(R.id.menu_share); 507 final MenuItem delete = menu.findItem(R.id.menu_delete); 508 final MenuItem copy = menu.findItem(R.id.menu_copy); 509 510 final boolean manageMode = state.action == ACTION_MANAGE; 511 open.setVisible(!manageMode); 512 share.setVisible(manageMode); 513 delete.setVisible(manageMode); 514 // Hide the copy menu item in the recents folder. For now, also hide it by default 515 // unless the debug flag is enabled. 516 copy.setVisible((mType != TYPE_RECENT_OPEN) && 517 SystemProperties.getBoolean("debug.documentsui.enable_copy", false)); 518 519 return true; 520 } 521 522 @Override 523 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 524 final SparseBooleanArray checked = mCurrentView.getCheckedItemPositions(); 525 final ArrayList<DocumentInfo> docs = Lists.newArrayList(); 526 final int size = checked.size(); 527 for (int i = 0; i < size; i++) { 528 if (checked.valueAt(i)) { 529 final Cursor cursor = mAdapter.getItem(checked.keyAt(i)); 530 final DocumentInfo doc = DocumentInfo.fromDirectoryCursor(cursor); 531 docs.add(doc); 532 } 533 } 534 535 final int id = item.getItemId(); 536 if (id == R.id.menu_open) { 537 BaseActivity.get(DirectoryFragment.this).onDocumentsPicked(docs); 538 mode.finish(); 539 return true; 540 541 } else if (id == R.id.menu_share) { 542 onShareDocuments(docs); 543 mode.finish(); 544 return true; 545 546 } else if (id == R.id.menu_delete) { 547 onDeleteDocuments(docs); 548 mode.finish(); 549 return true; 550 551 } else if (id == R.id.menu_copy) { 552 onCopyDocuments(docs); 553 mode.finish(); 554 return true; 555 556 } else if (id == R.id.menu_select_all) { 557 int count = mCurrentView.getCount(); 558 for (int i = 0; i < count; i++) { 559 mCurrentView.setItemChecked(i, true); 560 } 561 updateDisplayState(); 562 return true; 563 564 } else { 565 return false; 566 } 567 } 568 569 @Override 570 public void onDestroyActionMode(ActionMode mode) { 571 // ignored 572 } 573 574 @Override 575 public void onItemCheckedStateChanged( 576 ActionMode mode, int position, long id, boolean checked) { 577 if (checked) { 578 // Directories and footer items cannot be checked 579 boolean valid = false; 580 581 final Cursor cursor = mAdapter.getItem(position); 582 if (cursor != null) { 583 final String docMimeType = getCursorString(cursor, Document.COLUMN_MIME_TYPE); 584 final int docFlags = getCursorInt(cursor, Document.COLUMN_FLAGS); 585 valid = isDocumentEnabled(docMimeType, docFlags); 586 } 587 588 if (!valid) { 589 mCurrentView.setItemChecked(position, false); 590 } 591 } 592 593 mode.setTitle(getResources() 594 .getString(R.string.mode_selected_count, mCurrentView.getCheckedItemCount())); 595 } 596 }; 597 598 private RecyclerListener mRecycleListener = new RecyclerListener() { 599 @Override 600 public void onMovedToScrapHeap(View view) { 601 final ImageView iconThumb = (ImageView) view.findViewById(R.id.icon_thumb); 602 if (iconThumb != null) { 603 final ThumbnailAsyncTask oldTask = (ThumbnailAsyncTask) iconThumb.getTag(); 604 if (oldTask != null) { 605 oldTask.preempt(); 606 iconThumb.setTag(null); 607 } 608 } 609 } 610 }; 611 612 private void onShareDocuments(List<DocumentInfo> docs) { 613 Intent intent; 614 615 // Filter out directories - those can't be shared. 616 List<DocumentInfo> docsForSend = Lists.newArrayList(); 617 for (DocumentInfo doc: docs) { 618 if (!Document.MIME_TYPE_DIR.equals(doc.mimeType)) { 619 docsForSend.add(doc); 620 } 621 } 622 623 if (docsForSend.size() == 1) { 624 final DocumentInfo doc = docsForSend.get(0); 625 626 intent = new Intent(Intent.ACTION_SEND); 627 intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION); 628 intent.addCategory(Intent.CATEGORY_DEFAULT); 629 intent.setType(doc.mimeType); 630 intent.putExtra(Intent.EXTRA_STREAM, doc.derivedUri); 631 632 } else if (docsForSend.size() > 1) { 633 intent = new Intent(Intent.ACTION_SEND_MULTIPLE); 634 intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION); 635 intent.addCategory(Intent.CATEGORY_DEFAULT); 636 637 final ArrayList<String> mimeTypes = Lists.newArrayList(); 638 final ArrayList<Uri> uris = Lists.newArrayList(); 639 for (DocumentInfo doc : docsForSend) { 640 mimeTypes.add(doc.mimeType); 641 uris.add(doc.derivedUri); 642 } 643 644 intent.setType(findCommonMimeType(mimeTypes)); 645 intent.putParcelableArrayListExtra(Intent.EXTRA_STREAM, uris); 646 647 } else { 648 return; 649 } 650 651 intent = Intent.createChooser(intent, getActivity().getText(R.string.share_via)); 652 startActivity(intent); 653 } 654 655 private void onDeleteDocuments(List<DocumentInfo> docs) { 656 final Context context = getActivity(); 657 final ContentResolver resolver = context.getContentResolver(); 658 659 boolean hadTrouble = false; 660 for (DocumentInfo doc : docs) { 661 if (!doc.isDeleteSupported()) { 662 Log.w(TAG, "Skipping " + doc); 663 hadTrouble = true; 664 continue; 665 } 666 667 ContentProviderClient client = null; 668 try { 669 client = DocumentsApplication.acquireUnstableProviderOrThrow( 670 resolver, doc.derivedUri.getAuthority()); 671 DocumentsContract.deleteDocument(client, doc.derivedUri); 672 } catch (Exception e) { 673 Log.w(TAG, "Failed to delete " + doc); 674 hadTrouble = true; 675 } finally { 676 ContentProviderClient.releaseQuietly(client); 677 } 678 } 679 680 if (hadTrouble) { 681 Toast.makeText(context, R.string.toast_failed_delete, Toast.LENGTH_SHORT).show(); 682 } 683 } 684 685 private void onCopyDocuments(List<DocumentInfo> docs) { 686 mSelectedDocumentsForCopy = docs; 687 688 // Pop up a dialog to pick a destination. This is inadequate but works for now. 689 // TODO: Implement a picker that is to spec. 690 Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT_TREE); 691 startActivityForResult(intent, REQUEST_COPY_DESTINATION); 692 } 693 694 private static State getDisplayState(Fragment fragment) { 695 return ((BaseActivity) fragment.getActivity()).getDisplayState(); 696 } 697 698 private static abstract class Footer { 699 private final int mItemViewType; 700 701 public Footer(int itemViewType) { 702 mItemViewType = itemViewType; 703 } 704 705 public abstract View getView(View convertView, ViewGroup parent); 706 707 public int getItemViewType() { 708 return mItemViewType; 709 } 710 } 711 712 private class LoadingFooter extends Footer { 713 public LoadingFooter() { 714 super(1); 715 } 716 717 @Override 718 public View getView(View convertView, ViewGroup parent) { 719 final Context context = parent.getContext(); 720 final State state = getDisplayState(DirectoryFragment.this); 721 722 if (convertView == null) { 723 final LayoutInflater inflater = LayoutInflater.from(context); 724 if (state.derivedMode == MODE_LIST) { 725 convertView = inflater.inflate(R.layout.item_loading_list, parent, false); 726 } else if (state.derivedMode == MODE_GRID) { 727 convertView = inflater.inflate(R.layout.item_loading_grid, parent, false); 728 } else { 729 throw new IllegalStateException(); 730 } 731 } 732 733 return convertView; 734 } 735 } 736 737 private class MessageFooter extends Footer { 738 private final int mIcon; 739 private final String mMessage; 740 741 public MessageFooter(int itemViewType, int icon, String message) { 742 super(itemViewType); 743 mIcon = icon; 744 mMessage = message; 745 } 746 747 @Override 748 public View getView(View convertView, ViewGroup parent) { 749 final Context context = parent.getContext(); 750 final State state = getDisplayState(DirectoryFragment.this); 751 752 if (convertView == null) { 753 final LayoutInflater inflater = LayoutInflater.from(context); 754 if (state.derivedMode == MODE_LIST) { 755 convertView = inflater.inflate(R.layout.item_message_list, parent, false); 756 } else if (state.derivedMode == MODE_GRID) { 757 convertView = inflater.inflate(R.layout.item_message_grid, parent, false); 758 } else { 759 throw new IllegalStateException(); 760 } 761 } 762 763 final ImageView icon = (ImageView) convertView.findViewById(android.R.id.icon); 764 final TextView title = (TextView) convertView.findViewById(android.R.id.title); 765 icon.setImageResource(mIcon); 766 title.setText(mMessage); 767 return convertView; 768 } 769 } 770 771 private class DocumentsAdapter extends BaseAdapter { 772 private Cursor mCursor; 773 private int mCursorCount; 774 775 private List<Footer> mFooters = Lists.newArrayList(); 776 777 public void swapResult(DirectoryResult result) { 778 mCursor = result != null ? result.cursor : null; 779 mCursorCount = mCursor != null ? mCursor.getCount() : 0; 780 781 mFooters.clear(); 782 783 final Bundle extras = mCursor != null ? mCursor.getExtras() : null; 784 if (extras != null) { 785 final String info = extras.getString(DocumentsContract.EXTRA_INFO); 786 if (info != null) { 787 mFooters.add(new MessageFooter(2, R.drawable.ic_dialog_info, info)); 788 } 789 final String error = extras.getString(DocumentsContract.EXTRA_ERROR); 790 if (error != null) { 791 mFooters.add(new MessageFooter(3, R.drawable.ic_dialog_alert, error)); 792 } 793 if (extras.getBoolean(DocumentsContract.EXTRA_LOADING, false)) { 794 mFooters.add(new LoadingFooter()); 795 } 796 } 797 798 if (result != null && result.exception != null) { 799 mFooters.add(new MessageFooter( 800 3, R.drawable.ic_dialog_alert, getString(R.string.query_error))); 801 } 802 803 if (isEmpty()) { 804 mEmptyView.setVisibility(View.VISIBLE); 805 } else { 806 mEmptyView.setVisibility(View.GONE); 807 } 808 809 notifyDataSetChanged(); 810 } 811 812 @Override 813 public View getView(int position, View convertView, ViewGroup parent) { 814 if (position < mCursorCount) { 815 return getDocumentView(position, convertView, parent); 816 } else { 817 position -= mCursorCount; 818 convertView = mFooters.get(position).getView(convertView, parent); 819 // Only the view itself is disabled; contents inside shouldn't 820 // be dimmed. 821 convertView.setEnabled(false); 822 return convertView; 823 } 824 } 825 826 private View getDocumentView(int position, View convertView, ViewGroup parent) { 827 final Context context = parent.getContext(); 828 final State state = getDisplayState(DirectoryFragment.this); 829 830 final DocumentInfo doc = getArguments().getParcelable(EXTRA_DOC); 831 832 final RootsCache roots = DocumentsApplication.getRootsCache(context); 833 final ThumbnailCache thumbs = DocumentsApplication.getThumbnailsCache( 834 context, mThumbSize); 835 836 if (convertView == null) { 837 final LayoutInflater inflater = LayoutInflater.from(context); 838 if (state.derivedMode == MODE_LIST) { 839 convertView = inflater.inflate(R.layout.item_doc_list, parent, false); 840 } else if (state.derivedMode == MODE_GRID) { 841 convertView = inflater.inflate(R.layout.item_doc_grid, parent, false); 842 } else { 843 throw new IllegalStateException(); 844 } 845 } 846 847 final Cursor cursor = getItem(position); 848 849 final String docAuthority = getCursorString(cursor, RootCursorWrapper.COLUMN_AUTHORITY); 850 final String docRootId = getCursorString(cursor, RootCursorWrapper.COLUMN_ROOT_ID); 851 final String docId = getCursorString(cursor, Document.COLUMN_DOCUMENT_ID); 852 final String docMimeType = getCursorString(cursor, Document.COLUMN_MIME_TYPE); 853 final String docDisplayName = getCursorString(cursor, Document.COLUMN_DISPLAY_NAME); 854 final long docLastModified = getCursorLong(cursor, Document.COLUMN_LAST_MODIFIED); 855 final int docIcon = getCursorInt(cursor, Document.COLUMN_ICON); 856 final int docFlags = getCursorInt(cursor, Document.COLUMN_FLAGS); 857 final String docSummary = getCursorString(cursor, Document.COLUMN_SUMMARY); 858 final long docSize = getCursorLong(cursor, Document.COLUMN_SIZE); 859 860 final View line1 = convertView.findViewById(R.id.line1); 861 final View line2 = convertView.findViewById(R.id.line2); 862 863 final ImageView iconMime = (ImageView) convertView.findViewById(R.id.icon_mime); 864 final ImageView iconThumb = (ImageView) convertView.findViewById(R.id.icon_thumb); 865 final TextView title = (TextView) convertView.findViewById(android.R.id.title); 866 final ImageView icon1 = (ImageView) convertView.findViewById(android.R.id.icon1); 867 final ImageView icon2 = (ImageView) convertView.findViewById(android.R.id.icon2); 868 final TextView summary = (TextView) convertView.findViewById(android.R.id.summary); 869 final TextView date = (TextView) convertView.findViewById(R.id.date); 870 final TextView size = (TextView) convertView.findViewById(R.id.size); 871 872 final ThumbnailAsyncTask oldTask = (ThumbnailAsyncTask) iconThumb.getTag(); 873 if (oldTask != null) { 874 oldTask.preempt(); 875 iconThumb.setTag(null); 876 } 877 878 iconMime.animate().cancel(); 879 iconThumb.animate().cancel(); 880 881 final boolean supportsThumbnail = (docFlags & Document.FLAG_SUPPORTS_THUMBNAIL) != 0; 882 final boolean allowThumbnail = (state.derivedMode == MODE_GRID) 883 || MimePredicate.mimeMatches(MimePredicate.VISUAL_MIMES, docMimeType); 884 final boolean showThumbnail = supportsThumbnail && allowThumbnail && !mSvelteRecents; 885 886 final boolean enabled = isDocumentEnabled(docMimeType, docFlags); 887 final float iconAlpha = (state.derivedMode == MODE_LIST && !enabled) ? 0.5f : 1f; 888 889 boolean cacheHit = false; 890 if (showThumbnail) { 891 final Uri uri = DocumentsContract.buildDocumentUri(docAuthority, docId); 892 final Bitmap cachedResult = thumbs.get(uri); 893 if (cachedResult != null) { 894 iconThumb.setImageBitmap(cachedResult); 895 cacheHit = true; 896 } else { 897 iconThumb.setImageDrawable(null); 898 final ThumbnailAsyncTask task = new ThumbnailAsyncTask( 899 uri, iconMime, iconThumb, mThumbSize, iconAlpha); 900 iconThumb.setTag(task); 901 ProviderExecutor.forAuthority(docAuthority).execute(task); 902 } 903 } 904 905 // Always throw MIME icon into place, even when a thumbnail is being 906 // loaded in background. 907 if (cacheHit) { 908 iconMime.setAlpha(0f); 909 iconMime.setImageDrawable(null); 910 iconThumb.setAlpha(1f); 911 } else { 912 iconMime.setAlpha(1f); 913 iconThumb.setAlpha(0f); 914 iconThumb.setImageDrawable(null); 915 if (docIcon != 0) { 916 iconMime.setImageDrawable( 917 IconUtils.loadPackageIcon(context, docAuthority, docIcon)); 918 } else { 919 iconMime.setImageDrawable(IconUtils.loadMimeIcon( 920 context, docMimeType, docAuthority, docId, state.derivedMode)); 921 } 922 } 923 924 boolean hasLine1 = false; 925 boolean hasLine2 = false; 926 927 final boolean hideTitle = (state.derivedMode == MODE_GRID) && mHideGridTitles; 928 if (!hideTitle) { 929 title.setText(docDisplayName); 930 hasLine1 = true; 931 } 932 933 Drawable iconDrawable = null; 934 if (mType == TYPE_RECENT_OPEN) { 935 // We've already had to enumerate roots before any results can 936 // be shown, so this will never block. 937 final RootInfo root = roots.getRootBlocking(docAuthority, docRootId); 938 if (state.derivedMode == MODE_GRID) { 939 iconDrawable = root.loadGridIcon(context); 940 } else { 941 iconDrawable = root.loadIcon(context); 942 } 943 944 if (summary != null) { 945 final boolean alwaysShowSummary = getResources() 946 .getBoolean(R.bool.always_show_summary); 947 if (alwaysShowSummary) { 948 summary.setText(root.getDirectoryString()); 949 summary.setVisibility(View.VISIBLE); 950 hasLine2 = true; 951 } else { 952 if (iconDrawable != null && roots.isIconUniqueBlocking(root)) { 953 // No summary needed if icon speaks for itself 954 summary.setVisibility(View.INVISIBLE); 955 } else { 956 summary.setText(root.getDirectoryString()); 957 summary.setVisibility(View.VISIBLE); 958 summary.setTextAlignment(TextView.TEXT_ALIGNMENT_TEXT_END); 959 hasLine2 = true; 960 } 961 } 962 } 963 } else { 964 // Directories showing thumbnails in grid mode get a little icon 965 // hint to remind user they're a directory. 966 if (Document.MIME_TYPE_DIR.equals(docMimeType) && state.derivedMode == MODE_GRID 967 && showThumbnail) { 968 iconDrawable = IconUtils.applyTintAttr(context, R.drawable.ic_doc_folder, 969 android.R.attr.textColorPrimaryInverse); 970 } 971 972 if (summary != null) { 973 if (docSummary != null) { 974 summary.setText(docSummary); 975 summary.setVisibility(View.VISIBLE); 976 hasLine2 = true; 977 } else { 978 summary.setVisibility(View.INVISIBLE); 979 } 980 } 981 } 982 983 if (icon1 != null) icon1.setVisibility(View.GONE); 984 if (icon2 != null) icon2.setVisibility(View.GONE); 985 986 if (iconDrawable != null) { 987 if (hasLine1) { 988 icon1.setVisibility(View.VISIBLE); 989 icon1.setImageDrawable(iconDrawable); 990 } else { 991 icon2.setVisibility(View.VISIBLE); 992 icon2.setImageDrawable(iconDrawable); 993 } 994 } 995 996 if (docLastModified == -1) { 997 date.setText(null); 998 } else { 999 date.setText(formatTime(context, docLastModified)); 1000 hasLine2 = true; 1001 } 1002 1003 if (state.showSize) { 1004 size.setVisibility(View.VISIBLE); 1005 if (Document.MIME_TYPE_DIR.equals(docMimeType) || docSize == -1) { 1006 size.setText(null); 1007 } else { 1008 size.setText(Formatter.formatFileSize(context, docSize)); 1009 hasLine2 = true; 1010 } 1011 } else { 1012 size.setVisibility(View.GONE); 1013 } 1014 1015 if (line1 != null) { 1016 line1.setVisibility(hasLine1 ? View.VISIBLE : View.GONE); 1017 } 1018 if (line2 != null) { 1019 line2.setVisibility(hasLine2 ? View.VISIBLE : View.GONE); 1020 } 1021 1022 setEnabledRecursive(convertView, enabled); 1023 1024 iconMime.setAlpha(iconAlpha); 1025 iconThumb.setAlpha(iconAlpha); 1026 if (icon1 != null) icon1.setAlpha(iconAlpha); 1027 if (icon2 != null) icon2.setAlpha(iconAlpha); 1028 1029 return convertView; 1030 } 1031 1032 @Override 1033 public int getCount() { 1034 return mCursorCount + mFooters.size(); 1035 } 1036 1037 @Override 1038 public Cursor getItem(int position) { 1039 if (position < mCursorCount) { 1040 mCursor.moveToPosition(position); 1041 return mCursor; 1042 } else { 1043 return null; 1044 } 1045 } 1046 1047 @Override 1048 public long getItemId(int position) { 1049 return position; 1050 } 1051 1052 @Override 1053 public int getViewTypeCount() { 1054 return 4; 1055 } 1056 1057 @Override 1058 public int getItemViewType(int position) { 1059 if (position < mCursorCount) { 1060 return 0; 1061 } else { 1062 position -= mCursorCount; 1063 return mFooters.get(position).getItemViewType(); 1064 } 1065 } 1066 } 1067 1068 private static class ThumbnailAsyncTask extends AsyncTask<Uri, Void, Bitmap> 1069 implements Preemptable { 1070 private final Uri mUri; 1071 private final ImageView mIconMime; 1072 private final ImageView mIconThumb; 1073 private final Point mThumbSize; 1074 private final float mTargetAlpha; 1075 private final CancellationSignal mSignal; 1076 1077 public ThumbnailAsyncTask(Uri uri, ImageView iconMime, ImageView iconThumb, Point thumbSize, 1078 float targetAlpha) { 1079 mUri = uri; 1080 mIconMime = iconMime; 1081 mIconThumb = iconThumb; 1082 mThumbSize = thumbSize; 1083 mTargetAlpha = targetAlpha; 1084 mSignal = new CancellationSignal(); 1085 } 1086 1087 @Override 1088 public void preempt() { 1089 cancel(false); 1090 mSignal.cancel(); 1091 } 1092 1093 @Override 1094 protected Bitmap doInBackground(Uri... params) { 1095 if (isCancelled()) return null; 1096 1097 final Context context = mIconThumb.getContext(); 1098 final ContentResolver resolver = context.getContentResolver(); 1099 1100 ContentProviderClient client = null; 1101 Bitmap result = null; 1102 try { 1103 client = DocumentsApplication.acquireUnstableProviderOrThrow( 1104 resolver, mUri.getAuthority()); 1105 result = DocumentsContract.getDocumentThumbnail(client, mUri, mThumbSize, mSignal); 1106 if (result != null) { 1107 final ThumbnailCache thumbs = DocumentsApplication.getThumbnailsCache( 1108 context, mThumbSize); 1109 thumbs.put(mUri, result); 1110 } 1111 } catch (Exception e) { 1112 if (!(e instanceof OperationCanceledException)) { 1113 Log.w(TAG, "Failed to load thumbnail for " + mUri + ": " + e); 1114 } 1115 } finally { 1116 ContentProviderClient.releaseQuietly(client); 1117 } 1118 return result; 1119 } 1120 1121 @Override 1122 protected void onPostExecute(Bitmap result) { 1123 if (mIconThumb.getTag() == this && result != null) { 1124 mIconThumb.setTag(null); 1125 mIconThumb.setImageBitmap(result); 1126 1127 mIconMime.setAlpha(mTargetAlpha); 1128 mIconMime.animate().alpha(0f).start(); 1129 mIconThumb.setAlpha(0f); 1130 mIconThumb.animate().alpha(mTargetAlpha).start(); 1131 } 1132 } 1133 } 1134 1135 private static String formatTime(Context context, long when) { 1136 // TODO: DateUtils should make this easier 1137 Time then = new Time(); 1138 then.set(when); 1139 Time now = new Time(); 1140 now.setToNow(); 1141 1142 int flags = DateUtils.FORMAT_NO_NOON | DateUtils.FORMAT_NO_MIDNIGHT 1143 | DateUtils.FORMAT_ABBREV_ALL; 1144 1145 if (then.year != now.year) { 1146 flags |= DateUtils.FORMAT_SHOW_YEAR | DateUtils.FORMAT_SHOW_DATE; 1147 } else if (then.yearDay != now.yearDay) { 1148 flags |= DateUtils.FORMAT_SHOW_DATE; 1149 } else { 1150 flags |= DateUtils.FORMAT_SHOW_TIME; 1151 } 1152 1153 return DateUtils.formatDateTime(context, when, flags); 1154 } 1155 1156 private String findCommonMimeType(List<String> mimeTypes) { 1157 String[] commonType = mimeTypes.get(0).split("/"); 1158 if (commonType.length != 2) { 1159 return "*/*"; 1160 } 1161 1162 for (int i = 1; i < mimeTypes.size(); i++) { 1163 String[] type = mimeTypes.get(i).split("/"); 1164 if (type.length != 2) continue; 1165 1166 if (!commonType[1].equals(type[1])) { 1167 commonType[1] = "*"; 1168 } 1169 1170 if (!commonType[0].equals(type[0])) { 1171 commonType[0] = "*"; 1172 commonType[1] = "*"; 1173 break; 1174 } 1175 } 1176 1177 return commonType[0] + "/" + commonType[1]; 1178 } 1179 1180 private void setEnabledRecursive(View v, boolean enabled) { 1181 if (v == null) return; 1182 if (v.isEnabled() == enabled) return; 1183 v.setEnabled(enabled); 1184 1185 if (v instanceof ViewGroup) { 1186 final ViewGroup vg = (ViewGroup) v; 1187 for (int i = vg.getChildCount() - 1; i >= 0; i--) { 1188 setEnabledRecursive(vg.getChildAt(i), enabled); 1189 } 1190 } 1191 } 1192 1193 private boolean isDocumentEnabled(String docMimeType, int docFlags) { 1194 final State state = getDisplayState(DirectoryFragment.this); 1195 1196 // Directories are always enabled 1197 if (Document.MIME_TYPE_DIR.equals(docMimeType)) { 1198 return true; 1199 } 1200 1201 // Read-only files are disabled when creating 1202 if (state.action == ACTION_CREATE && (docFlags & Document.FLAG_SUPPORTS_WRITE) == 0) { 1203 return false; 1204 } 1205 1206 return MimePredicate.mimeMatches(state.acceptMimes, docMimeType); 1207 } 1208} 1209