DirectoryFragment.java revision e20a3acdc2d52c7eeb76940206145b3c419394a6
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.DocumentsActivity.State.ACTION_MANAGE; 21import static com.android.documentsui.DocumentsActivity.State.MODE_GRID; 22import static com.android.documentsui.DocumentsActivity.State.MODE_LIST; 23import static com.android.documentsui.DocumentsActivity.State.MODE_UNKNOWN; 24import static com.android.documentsui.DocumentsActivity.State.SORT_ORDER_UNKNOWN; 25import static com.android.documentsui.model.DocumentInfo.getCursorInt; 26import static com.android.documentsui.model.DocumentInfo.getCursorLong; 27import static com.android.documentsui.model.DocumentInfo.getCursorString; 28 29import android.app.Fragment; 30import android.app.FragmentManager; 31import android.app.FragmentTransaction; 32import android.app.LoaderManager.LoaderCallbacks; 33import android.content.ContentResolver; 34import android.content.ContentValues; 35import android.content.Context; 36import android.content.Intent; 37import android.content.Loader; 38import android.database.Cursor; 39import android.graphics.Bitmap; 40import android.graphics.Point; 41import android.graphics.drawable.Drawable; 42import android.net.Uri; 43import android.os.AsyncTask; 44import android.os.Bundle; 45import android.os.CancellationSignal; 46import android.os.Parcelable; 47import android.provider.DocumentsContract; 48import android.provider.DocumentsContract.Document; 49import android.text.format.DateUtils; 50import android.text.format.Formatter; 51import android.text.format.Time; 52import android.util.Log; 53import android.util.SparseArray; 54import android.util.SparseBooleanArray; 55import android.view.ActionMode; 56import android.view.LayoutInflater; 57import android.view.Menu; 58import android.view.MenuItem; 59import android.view.View; 60import android.view.ViewGroup; 61import android.widget.AbsListView; 62import android.widget.AbsListView.MultiChoiceModeListener; 63import android.widget.AbsListView.RecyclerListener; 64import android.widget.AdapterView; 65import android.widget.AdapterView.OnItemClickListener; 66import android.widget.BaseAdapter; 67import android.widget.GridView; 68import android.widget.ImageView; 69import android.widget.ListView; 70import android.widget.TextView; 71import android.widget.Toast; 72 73import com.android.documentsui.DocumentsActivity.State; 74import com.android.documentsui.RecentsProvider.StateColumns; 75import com.android.documentsui.model.DocumentInfo; 76import com.android.documentsui.model.RootInfo; 77import com.android.internal.util.Predicate; 78import com.google.android.collect.Lists; 79 80import java.util.ArrayList; 81import java.util.List; 82import java.util.concurrent.atomic.AtomicInteger; 83 84/** 85 * Display the documents inside a single directory. 86 */ 87public class DirectoryFragment extends Fragment { 88 89 private View mEmptyView; 90 private ListView mListView; 91 private GridView mGridView; 92 93 private AbsListView mCurrentView; 94 95 private Predicate<DocumentInfo> mFilter; 96 97 public static final int TYPE_NORMAL = 1; 98 public static final int TYPE_SEARCH = 2; 99 public static final int TYPE_RECENT_OPEN = 3; 100 101 public static final int ANIM_NONE = 1; 102 public static final int ANIM_SIDE = 2; 103 public static final int ANIM_DOWN = 3; 104 public static final int ANIM_UP = 4; 105 106 private int mType = TYPE_NORMAL; 107 private String mStateKey; 108 109 private int mLastMode = MODE_UNKNOWN; 110 private int mLastSortOrder = SORT_ORDER_UNKNOWN; 111 private boolean mLastShowSize = false; 112 113 private boolean mHideGridTitles = false; 114 115 private Point mThumbSize; 116 117 private DocumentsAdapter mAdapter; 118 private LoaderCallbacks<DirectoryResult> mCallbacks; 119 120 private static final String EXTRA_TYPE = "type"; 121 private static final String EXTRA_ROOT = "root"; 122 private static final String EXTRA_DOC = "doc"; 123 private static final String EXTRA_QUERY = "query"; 124 private static final String EXTRA_IGNORE_STATE = "ignoreState"; 125 126 private static AtomicInteger sLoaderId = new AtomicInteger(4000); 127 128 private final int mLoaderId = sLoaderId.incrementAndGet(); 129 130 public static void showNormal(FragmentManager fm, RootInfo root, DocumentInfo doc, int anim) { 131 show(fm, TYPE_NORMAL, root, doc, null, anim); 132 } 133 134 public static void showSearch(FragmentManager fm, RootInfo root, String query, int anim) { 135 show(fm, TYPE_SEARCH, root, null, query, anim); 136 } 137 138 public static void showRecentsOpen(FragmentManager fm, int anim) { 139 show(fm, TYPE_RECENT_OPEN, null, null, null, anim); 140 } 141 142 private static void show(FragmentManager fm, int type, RootInfo root, DocumentInfo doc, 143 String query, int anim) { 144 final Bundle args = new Bundle(); 145 args.putInt(EXTRA_TYPE, type); 146 args.putParcelable(EXTRA_ROOT, root); 147 args.putParcelable(EXTRA_DOC, doc); 148 args.putString(EXTRA_QUERY, query); 149 150 final FragmentTransaction ft = fm.beginTransaction(); 151 switch (anim) { 152 case ANIM_SIDE: 153 args.putBoolean(EXTRA_IGNORE_STATE, true); 154 break; 155 case ANIM_DOWN: 156 args.putBoolean(EXTRA_IGNORE_STATE, true); 157 ft.setCustomAnimations(R.animator.dir_down, R.animator.dir_frozen); 158 break; 159 case ANIM_UP: 160 ft.setCustomAnimations(R.animator.dir_frozen, R.animator.dir_up); 161 break; 162 } 163 164 final DirectoryFragment fragment = new DirectoryFragment(); 165 fragment.setArguments(args); 166 167 ft.replace(R.id.container_directory, fragment); 168 ft.commitAllowingStateLoss(); 169 } 170 171 private static String buildStateKey(RootInfo root, DocumentInfo doc) { 172 final StringBuilder builder = new StringBuilder(); 173 builder.append(root != null ? root.authority : "null").append(';'); 174 builder.append(root != null ? root.rootId : "null").append(';'); 175 builder.append(doc != null ? doc.documentId : "null"); 176 return builder.toString(); 177 } 178 179 public static DirectoryFragment get(FragmentManager fm) { 180 // TODO: deal with multiple directories shown at once 181 return (DirectoryFragment) fm.findFragmentById(R.id.container_directory); 182 } 183 184 @Override 185 public View onCreateView( 186 LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { 187 final Context context = inflater.getContext(); 188 final View view = inflater.inflate(R.layout.fragment_directory, container, false); 189 190 mEmptyView = view.findViewById(android.R.id.empty); 191 192 mListView = (ListView) view.findViewById(R.id.list); 193 mListView.setOnItemClickListener(mItemListener); 194 mListView.setMultiChoiceModeListener(mMultiListener); 195 mListView.setRecyclerListener(mRecycleListener); 196 197 mGridView = (GridView) view.findViewById(R.id.grid); 198 mGridView.setOnItemClickListener(mItemListener); 199 mGridView.setMultiChoiceModeListener(mMultiListener); 200 mGridView.setRecyclerListener(mRecycleListener); 201 202 return view; 203 } 204 205 @Override 206 public void onActivityCreated(Bundle savedInstanceState) { 207 super.onActivityCreated(savedInstanceState); 208 209 final Context context = getActivity(); 210 final State state = getDisplayState(DirectoryFragment.this); 211 212 final RootInfo root = getArguments().getParcelable(EXTRA_ROOT); 213 final DocumentInfo doc = getArguments().getParcelable(EXTRA_DOC); 214 215 mAdapter = new DocumentsAdapter(); 216 mType = getArguments().getInt(EXTRA_TYPE); 217 mStateKey = buildStateKey(root, doc); 218 219 if (mType == TYPE_RECENT_OPEN) { 220 // Hide titles when showing recents for picking images/videos 221 mHideGridTitles = MimePredicate.mimeMatches( 222 MimePredicate.VISUAL_MIMES, state.acceptMimes); 223 } else { 224 mHideGridTitles = (doc != null) && doc.isGridTitlesHidden(); 225 } 226 227 mCallbacks = new LoaderCallbacks<DirectoryResult>() { 228 @Override 229 public Loader<DirectoryResult> onCreateLoader(int id, Bundle args) { 230 final String query = getArguments().getString(EXTRA_QUERY); 231 232 Uri contentsUri; 233 switch (mType) { 234 case TYPE_NORMAL: 235 contentsUri = DocumentsContract.buildChildDocumentsUri( 236 doc.authority, doc.documentId); 237 if (state.action == ACTION_MANAGE) { 238 contentsUri = DocumentsContract.setManageMode(contentsUri); 239 } 240 return new DirectoryLoader( 241 context, mType, root, doc, contentsUri, state.userSortOrder); 242 case TYPE_SEARCH: 243 contentsUri = DocumentsContract.buildSearchDocumentsUri( 244 root.authority, root.rootId, query); 245 if (state.action == ACTION_MANAGE) { 246 contentsUri = DocumentsContract.setManageMode(contentsUri); 247 } 248 return new DirectoryLoader( 249 context, mType, root, doc, contentsUri, state.userSortOrder); 250 case TYPE_RECENT_OPEN: 251 final RootsCache roots = DocumentsApplication.getRootsCache(context); 252 final List<RootInfo> matchingRoots = roots.getMatchingRoots(state); 253 return new RecentLoader(context, matchingRoots, state.acceptMimes); 254 default: 255 throw new IllegalStateException("Unknown type " + mType); 256 } 257 } 258 259 @Override 260 public void onLoadFinished(Loader<DirectoryResult> loader, DirectoryResult result) { 261 if (!isAdded()) return; 262 263 mAdapter.swapCursor(result.cursor); 264 265 // Push latest state up to UI 266 // TODO: if mode change was racing with us, don't overwrite it 267 if (result.mode != MODE_UNKNOWN) { 268 state.derivedMode = result.mode; 269 } 270 state.derivedSortOrder = result.sortOrder; 271 ((DocumentsActivity) context).onStateChanged(); 272 273 updateDisplayState(); 274 275 // Restore any previous instance state 276 final SparseArray<Parcelable> container = state.dirState.remove(mStateKey); 277 if (container != null && !getArguments().getBoolean(EXTRA_IGNORE_STATE, false)) { 278 getView().restoreHierarchyState(container); 279 } else if (mLastSortOrder != state.derivedSortOrder) { 280 mListView.smoothScrollToPosition(0); 281 mGridView.smoothScrollToPosition(0); 282 } 283 284 mLastSortOrder = state.derivedSortOrder; 285 } 286 287 @Override 288 public void onLoaderReset(Loader<DirectoryResult> loader) { 289 mAdapter.swapCursor(null); 290 } 291 }; 292 293 // Kick off loader at least once 294 getLoaderManager().restartLoader(mLoaderId, null, mCallbacks); 295 296 updateDisplayState(); 297 } 298 299 @Override 300 public void onStop() { 301 super.onStop(); 302 303 // Remember last scroll location 304 final SparseArray<Parcelable> container = new SparseArray<Parcelable>(); 305 getView().saveHierarchyState(container); 306 final State state = getDisplayState(this); 307 state.dirState.put(mStateKey, container); 308 } 309 310 @Override 311 public void onResume() { 312 super.onResume(); 313 updateDisplayState(); 314 } 315 316 public void onUserSortOrderChanged() { 317 // Sort order change always triggers reload; we'll trigger state change 318 // on the flip side. 319 getLoaderManager().restartLoader(mLoaderId, null, mCallbacks); 320 } 321 322 public void onUserModeChanged() { 323 final ContentResolver resolver = getActivity().getContentResolver(); 324 final State state = getDisplayState(this); 325 326 final RootInfo root = getArguments().getParcelable(EXTRA_ROOT); 327 final DocumentInfo doc = getArguments().getParcelable(EXTRA_DOC); 328 329 if (root != null && doc != null) { 330 final Uri stateUri = RecentsProvider.buildState( 331 root.authority, root.rootId, doc.documentId); 332 final ContentValues values = new ContentValues(); 333 values.put(StateColumns.MODE, state.userMode); 334 335 new AsyncTask<Void, Void, Void>() { 336 @Override 337 protected Void doInBackground(Void... params) { 338 resolver.insert(stateUri, values); 339 return null; 340 } 341 }.execute(); 342 } 343 344 // Mode change is just visual change; no need to kick loader, and 345 // deliver change event immediately. 346 state.derivedMode = state.userMode; 347 ((DocumentsActivity) getActivity()).onStateChanged(); 348 349 updateDisplayState(); 350 } 351 352 private void updateDisplayState() { 353 final State state = getDisplayState(this); 354 355 mFilter = new MimePredicate(state.acceptMimes); 356 357 if (mLastMode == state.derivedMode && mLastShowSize == state.showSize) return; 358 mLastMode = state.derivedMode; 359 mLastShowSize = state.showSize; 360 361 mListView.setVisibility(state.derivedMode == MODE_LIST ? View.VISIBLE : View.GONE); 362 mGridView.setVisibility(state.derivedMode == MODE_GRID ? View.VISIBLE : View.GONE); 363 364 final int choiceMode; 365 if (state.allowMultiple) { 366 choiceMode = ListView.CHOICE_MODE_MULTIPLE_MODAL; 367 } else { 368 choiceMode = ListView.CHOICE_MODE_NONE; 369 } 370 371 final int thumbSize; 372 if (state.derivedMode == MODE_GRID) { 373 thumbSize = getResources().getDimensionPixelSize(R.dimen.grid_width); 374 mListView.setAdapter(null); 375 mListView.setChoiceMode(ListView.CHOICE_MODE_NONE); 376 mGridView.setAdapter(mAdapter); 377 mGridView.setColumnWidth(getResources().getDimensionPixelSize(R.dimen.grid_width)); 378 mGridView.setNumColumns(GridView.AUTO_FIT); 379 mGridView.setChoiceMode(choiceMode); 380 mCurrentView = mGridView; 381 } else if (state.derivedMode == MODE_LIST) { 382 thumbSize = getResources().getDimensionPixelSize(R.dimen.icon_size); 383 mGridView.setAdapter(null); 384 mGridView.setChoiceMode(ListView.CHOICE_MODE_NONE); 385 mListView.setAdapter(mAdapter); 386 mListView.setChoiceMode(choiceMode); 387 mCurrentView = mListView; 388 } else { 389 throw new IllegalStateException("Unknown state " + state.derivedMode); 390 } 391 392 mThumbSize = new Point(thumbSize, thumbSize); 393 } 394 395 private OnItemClickListener mItemListener = new OnItemClickListener() { 396 @Override 397 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 398 final Cursor cursor = mAdapter.getItem(position); 399 if (cursor != null) { 400 final DocumentInfo doc = DocumentInfo.fromDirectoryCursor(cursor); 401 if (mFilter.apply(doc)) { 402 ((DocumentsActivity) getActivity()).onDocumentPicked(doc); 403 } 404 } 405 } 406 }; 407 408 private MultiChoiceModeListener mMultiListener = new MultiChoiceModeListener() { 409 @Override 410 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 411 mode.getMenuInflater().inflate(R.menu.mode_directory, menu); 412 return true; 413 } 414 415 @Override 416 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 417 final State state = getDisplayState(DirectoryFragment.this); 418 419 final MenuItem open = menu.findItem(R.id.menu_open); 420 final MenuItem share = menu.findItem(R.id.menu_share); 421 final MenuItem delete = menu.findItem(R.id.menu_delete); 422 423 final boolean manageMode = state.action == ACTION_MANAGE; 424 open.setVisible(!manageMode); 425 share.setVisible(manageMode); 426 delete.setVisible(manageMode); 427 428 return true; 429 } 430 431 @Override 432 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 433 final SparseBooleanArray checked = mCurrentView.getCheckedItemPositions(); 434 final ArrayList<DocumentInfo> docs = Lists.newArrayList(); 435 final int size = checked.size(); 436 for (int i = 0; i < size; i++) { 437 if (checked.valueAt(i)) { 438 final Cursor cursor = mAdapter.getItem(checked.keyAt(i)); 439 final DocumentInfo doc = DocumentInfo.fromDirectoryCursor(cursor); 440 docs.add(doc); 441 } 442 } 443 444 final int id = item.getItemId(); 445 if (id == R.id.menu_open) { 446 DocumentsActivity.get(DirectoryFragment.this).onDocumentsPicked(docs); 447 mode.finish(); 448 return true; 449 450 } else if (id == R.id.menu_share) { 451 onShareDocuments(docs); 452 mode.finish(); 453 return true; 454 455 } else if (id == R.id.menu_delete) { 456 onDeleteDocuments(docs); 457 mode.finish(); 458 return true; 459 460 } else { 461 return false; 462 } 463 } 464 465 @Override 466 public void onDestroyActionMode(ActionMode mode) { 467 // ignored 468 } 469 470 @Override 471 public void onItemCheckedStateChanged( 472 ActionMode mode, int position, long id, boolean checked) { 473 if (checked) { 474 // Directories and footer items cannot be checked 475 boolean valid = false; 476 477 final Cursor cursor = mAdapter.getItem(position); 478 if (cursor != null) { 479 final String docMimeType = getCursorString(cursor, Document.COLUMN_MIME_TYPE); 480 481 // Only valid if non-directory matches filter 482 final State state = getDisplayState(DirectoryFragment.this); 483 valid = !Document.MIME_TYPE_DIR.equals(docMimeType) 484 && MimePredicate.mimeMatches(state.acceptMimes, docMimeType); 485 } 486 487 if (!valid) { 488 mCurrentView.setItemChecked(position, false); 489 } 490 } 491 492 mode.setTitle(getResources() 493 .getString(R.string.mode_selected_count, mCurrentView.getCheckedItemCount())); 494 } 495 }; 496 497 private RecyclerListener mRecycleListener = new RecyclerListener() { 498 @Override 499 public void onMovedToScrapHeap(View view) { 500 final ImageView iconThumb = (ImageView) view.findViewById(R.id.icon_thumb); 501 if (iconThumb != null) { 502 final ThumbnailAsyncTask oldTask = (ThumbnailAsyncTask) iconThumb.getTag(); 503 if (oldTask != null) { 504 oldTask.reallyCancel(); 505 iconThumb.setTag(null); 506 } 507 } 508 } 509 }; 510 511 private void onShareDocuments(List<DocumentInfo> docs) { 512 Intent intent; 513 if (docs.size() == 1) { 514 final DocumentInfo doc = docs.get(0); 515 516 intent = new Intent(Intent.ACTION_SEND); 517 intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION); 518 intent.addCategory(Intent.CATEGORY_DEFAULT); 519 intent.setType(doc.mimeType); 520 intent.putExtra(Intent.EXTRA_STREAM, doc.derivedUri); 521 522 } else if (docs.size() > 1) { 523 intent = new Intent(Intent.ACTION_SEND_MULTIPLE); 524 intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION); 525 intent.addCategory(Intent.CATEGORY_DEFAULT); 526 527 final ArrayList<String> mimeTypes = Lists.newArrayList(); 528 final ArrayList<Uri> uris = Lists.newArrayList(); 529 for (DocumentInfo doc : docs) { 530 mimeTypes.add(doc.mimeType); 531 uris.add(doc.derivedUri); 532 } 533 534 intent.setType(findCommonMimeType(mimeTypes)); 535 intent.putParcelableArrayListExtra(Intent.EXTRA_STREAM, uris); 536 537 } else { 538 return; 539 } 540 541 intent = Intent.createChooser(intent, getActivity().getText(R.string.share_via)); 542 startActivity(intent); 543 } 544 545 private void onDeleteDocuments(List<DocumentInfo> docs) { 546 final Context context = getActivity(); 547 final ContentResolver resolver = context.getContentResolver(); 548 549 boolean hadTrouble = false; 550 for (DocumentInfo doc : docs) { 551 if (!doc.isDeleteSupported()) { 552 Log.w(TAG, "Skipping " + doc); 553 hadTrouble = true; 554 continue; 555 } 556 557 if (!DocumentsContract.deleteDocument(resolver, doc.derivedUri)) { 558 Log.w(TAG, "Failed to delete " + doc); 559 hadTrouble = true; 560 } 561 } 562 563 if (hadTrouble) { 564 Toast.makeText(context, R.string.toast_failed_delete, Toast.LENGTH_SHORT).show(); 565 } 566 } 567 568 private static State getDisplayState(Fragment fragment) { 569 return ((DocumentsActivity) fragment.getActivity()).getDisplayState(); 570 } 571 572 private static abstract class Footer { 573 private final int mItemViewType; 574 575 public Footer(int itemViewType) { 576 mItemViewType = itemViewType; 577 } 578 579 public abstract View getView(View convertView, ViewGroup parent); 580 581 public int getItemViewType() { 582 return mItemViewType; 583 } 584 } 585 586 private class LoadingFooter extends Footer { 587 public LoadingFooter() { 588 super(1); 589 } 590 591 @Override 592 public View getView(View convertView, ViewGroup parent) { 593 final Context context = parent.getContext(); 594 final State state = getDisplayState(DirectoryFragment.this); 595 596 if (convertView == null) { 597 final LayoutInflater inflater = LayoutInflater.from(context); 598 if (state.derivedMode == MODE_LIST) { 599 convertView = inflater.inflate(R.layout.item_loading_list, parent, false); 600 } else if (state.derivedMode == MODE_GRID) { 601 convertView = inflater.inflate(R.layout.item_loading_grid, parent, false); 602 } else { 603 throw new IllegalStateException(); 604 } 605 } 606 607 return convertView; 608 } 609 } 610 611 private class MessageFooter extends Footer { 612 private final int mIcon; 613 private final String mMessage; 614 615 public MessageFooter(int itemViewType, int icon, String message) { 616 super(itemViewType); 617 mIcon = icon; 618 mMessage = message; 619 } 620 621 @Override 622 public View getView(View convertView, ViewGroup parent) { 623 final Context context = parent.getContext(); 624 final State state = getDisplayState(DirectoryFragment.this); 625 626 if (convertView == null) { 627 final LayoutInflater inflater = LayoutInflater.from(context); 628 if (state.derivedMode == MODE_LIST) { 629 convertView = inflater.inflate(R.layout.item_message_list, parent, false); 630 } else if (state.derivedMode == MODE_GRID) { 631 convertView = inflater.inflate(R.layout.item_message_grid, parent, false); 632 } else { 633 throw new IllegalStateException(); 634 } 635 } 636 637 final ImageView icon = (ImageView) convertView.findViewById(android.R.id.icon); 638 final TextView title = (TextView) convertView.findViewById(android.R.id.title); 639 icon.setImageResource(mIcon); 640 title.setText(mMessage); 641 return convertView; 642 } 643 } 644 645 private class DocumentsAdapter extends BaseAdapter { 646 private Cursor mCursor; 647 private int mCursorCount; 648 649 private List<Footer> mFooters = Lists.newArrayList(); 650 651 public void swapCursor(Cursor cursor) { 652 mCursor = cursor; 653 mCursorCount = cursor != null ? cursor.getCount() : 0; 654 655 mFooters.clear(); 656 657 final Bundle extras = cursor != null ? cursor.getExtras() : null; 658 if (extras != null) { 659 final String info = extras.getString(DocumentsContract.EXTRA_INFO); 660 if (info != null) { 661 mFooters.add(new MessageFooter(2, R.drawable.ic_dialog_alert, info)); 662 } 663 final String error = extras.getString(DocumentsContract.EXTRA_ERROR); 664 if (error != null) { 665 mFooters.add(new MessageFooter(3, R.drawable.ic_dialog_alert, error)); 666 } 667 if (extras.getBoolean(DocumentsContract.EXTRA_LOADING, false)) { 668 mFooters.add(new LoadingFooter()); 669 } 670 } 671 672 if (isEmpty()) { 673 mEmptyView.setVisibility(View.VISIBLE); 674 } else { 675 mEmptyView.setVisibility(View.GONE); 676 } 677 678 notifyDataSetChanged(); 679 } 680 681 @Override 682 public View getView(int position, View convertView, ViewGroup parent) { 683 if (position < mCursorCount) { 684 return getDocumentView(position, convertView, parent); 685 } else { 686 position -= mCursorCount; 687 convertView = mFooters.get(position).getView(convertView, parent); 688 // Only the view itself is disabled; contents inside shouldn't 689 // be dimmed. 690 convertView.setEnabled(false); 691 return convertView; 692 } 693 } 694 695 private View getDocumentView(int position, View convertView, ViewGroup parent) { 696 final Context context = parent.getContext(); 697 final State state = getDisplayState(DirectoryFragment.this); 698 699 final DocumentInfo doc = getArguments().getParcelable(EXTRA_DOC); 700 701 final RootsCache roots = DocumentsApplication.getRootsCache(context); 702 final ThumbnailCache thumbs = DocumentsApplication.getThumbnailsCache( 703 context, mThumbSize); 704 705 if (convertView == null) { 706 final LayoutInflater inflater = LayoutInflater.from(context); 707 if (state.derivedMode == MODE_LIST) { 708 convertView = inflater.inflate(R.layout.item_doc_list, parent, false); 709 } else if (state.derivedMode == MODE_GRID) { 710 convertView = inflater.inflate(R.layout.item_doc_grid, parent, false); 711 } else { 712 throw new IllegalStateException(); 713 } 714 } 715 716 final Cursor cursor = getItem(position); 717 718 final String docAuthority = getCursorString(cursor, RootCursorWrapper.COLUMN_AUTHORITY); 719 final String docRootId = getCursorString(cursor, RootCursorWrapper.COLUMN_ROOT_ID); 720 final String docId = getCursorString(cursor, Document.COLUMN_DOCUMENT_ID); 721 final String docMimeType = getCursorString(cursor, Document.COLUMN_MIME_TYPE); 722 final String docDisplayName = getCursorString(cursor, Document.COLUMN_DISPLAY_NAME); 723 final long docLastModified = getCursorLong(cursor, Document.COLUMN_LAST_MODIFIED); 724 final int docIcon = getCursorInt(cursor, Document.COLUMN_ICON); 725 final int docFlags = getCursorInt(cursor, Document.COLUMN_FLAGS); 726 final String docSummary = getCursorString(cursor, Document.COLUMN_SUMMARY); 727 final long docSize = getCursorLong(cursor, Document.COLUMN_SIZE); 728 729 final View line1 = convertView.findViewById(R.id.line1); 730 final View line2 = convertView.findViewById(R.id.line2); 731 732 final View icon = convertView.findViewById(android.R.id.icon); 733 final ImageView iconMime = (ImageView) convertView.findViewById(R.id.icon_mime); 734 final ImageView iconThumb = (ImageView) convertView.findViewById(R.id.icon_thumb); 735 final TextView title = (TextView) convertView.findViewById(android.R.id.title); 736 final ImageView icon1 = (ImageView) convertView.findViewById(android.R.id.icon1); 737 final ImageView icon2 = (ImageView) convertView.findViewById(android.R.id.icon2); 738 final TextView summary = (TextView) convertView.findViewById(android.R.id.summary); 739 final TextView date = (TextView) convertView.findViewById(R.id.date); 740 final TextView size = (TextView) convertView.findViewById(R.id.size); 741 742 final ThumbnailAsyncTask oldTask = (ThumbnailAsyncTask) iconThumb.getTag(); 743 if (oldTask != null) { 744 oldTask.reallyCancel(); 745 iconThumb.setTag(null); 746 } 747 748 iconMime.animate().cancel(); 749 iconThumb.animate().cancel(); 750 751 final boolean supportsThumbnail = (docFlags & Document.FLAG_SUPPORTS_THUMBNAIL) != 0; 752 final boolean allowThumbnail = (state.derivedMode == MODE_GRID) 753 || MimePredicate.mimeMatches(MimePredicate.VISUAL_MIMES, docMimeType); 754 final boolean showThumbnail = supportsThumbnail && allowThumbnail; 755 756 boolean cacheHit = false; 757 if (showThumbnail) { 758 final Uri uri = DocumentsContract.buildDocumentUri(docAuthority, docId); 759 final Bitmap cachedResult = thumbs.get(uri); 760 if (cachedResult != null) { 761 iconThumb.setImageBitmap(cachedResult); 762 cacheHit = true; 763 } else { 764 iconThumb.setImageDrawable(null); 765 final ThumbnailAsyncTask task = new ThumbnailAsyncTask( 766 uri, iconMime, iconThumb, mThumbSize); 767 iconThumb.setTag(task); 768 task.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR); 769 } 770 } 771 772 // Always throw MIME icon into place, even when a thumbnail is being 773 // loaded in background. 774 if (cacheHit) { 775 iconMime.setAlpha(0f); 776 iconThumb.setAlpha(1f); 777 } else { 778 iconMime.setAlpha(1f); 779 iconThumb.setAlpha(0f); 780 if (docIcon != 0) { 781 iconMime.setImageDrawable( 782 IconUtils.loadPackageIcon(context, docAuthority, docIcon)); 783 } else { 784 iconMime.setImageDrawable(IconUtils.loadMimeIcon(context, docMimeType)); 785 } 786 } 787 788 boolean hasLine1 = false; 789 boolean hasLine2 = false; 790 791 final boolean hideTitle = (state.derivedMode == MODE_GRID) && mHideGridTitles; 792 if (!hideTitle) { 793 title.setText(docDisplayName); 794 hasLine1 = true; 795 } 796 797 Drawable iconDrawable = null; 798 if (mType == TYPE_RECENT_OPEN) { 799 final RootInfo root = roots.getRoot(docAuthority, docRootId); 800 iconDrawable = root.loadIcon(context); 801 802 if (summary != null) { 803 final boolean alwaysShowSummary = getResources() 804 .getBoolean(R.bool.always_show_summary); 805 if (alwaysShowSummary) { 806 summary.setText(root.getDirectoryString()); 807 summary.setVisibility(View.VISIBLE); 808 hasLine2 = true; 809 } else { 810 if (iconDrawable != null && roots.isIconUnique(root)) { 811 // No summary needed if icon speaks for itself 812 summary.setVisibility(View.INVISIBLE); 813 } else { 814 summary.setText(root.getDirectoryString()); 815 summary.setVisibility(View.VISIBLE); 816 summary.setTextAlignment(TextView.TEXT_ALIGNMENT_TEXT_END); 817 hasLine2 = true; 818 } 819 } 820 } 821 } else { 822 // Directories showing thumbnails in grid mode get a little icon 823 // hint to remind user they're a directory. 824 if (Document.MIME_TYPE_DIR.equals(docMimeType) && state.derivedMode == MODE_GRID 825 && showThumbnail) { 826 iconDrawable = context.getResources().getDrawable(R.drawable.ic_root_folder); 827 } 828 829 if (summary != null) { 830 if (docSummary != null) { 831 summary.setText(docSummary); 832 summary.setVisibility(View.VISIBLE); 833 hasLine2 = true; 834 } else { 835 summary.setVisibility(View.INVISIBLE); 836 } 837 } 838 } 839 840 if (icon1 != null) icon1.setVisibility(View.GONE); 841 if (icon2 != null) icon2.setVisibility(View.GONE); 842 843 if (iconDrawable != null) { 844 if (hasLine1) { 845 icon1.setVisibility(View.VISIBLE); 846 icon1.setImageDrawable(iconDrawable); 847 } else { 848 icon2.setVisibility(View.VISIBLE); 849 icon2.setImageDrawable(iconDrawable); 850 } 851 } 852 853 if (docLastModified == -1) { 854 date.setText(null); 855 } else { 856 date.setText(formatTime(context, docLastModified)); 857 hasLine2 = true; 858 } 859 860 if (state.showSize) { 861 size.setVisibility(View.VISIBLE); 862 if (Document.MIME_TYPE_DIR.equals(docMimeType) || docSize == -1) { 863 size.setText(null); 864 } else { 865 size.setText(Formatter.formatFileSize(context, docSize)); 866 hasLine2 = true; 867 } 868 } else { 869 size.setVisibility(View.GONE); 870 } 871 872 if (line1 != null) { 873 line1.setVisibility(hasLine1 ? View.VISIBLE : View.GONE); 874 } 875 if (line2 != null) { 876 line2.setVisibility(hasLine2 ? View.VISIBLE : View.GONE); 877 } 878 879 final boolean enabled = Document.MIME_TYPE_DIR.equals(docMimeType) 880 || MimePredicate.mimeMatches(state.acceptMimes, docMimeType); 881 if (enabled) { 882 setEnabledRecursive(convertView, true); 883 icon.setAlpha(1f); 884 if (icon1 != null) icon1.setAlpha(1f); 885 if (icon2 != null) icon2.setAlpha(1f); 886 } else { 887 setEnabledRecursive(convertView, false); 888 icon.setAlpha(0.5f); 889 if (icon1 != null) icon1.setAlpha(0.5f); 890 if (icon2 != null) icon2.setAlpha(0.5f); 891 } 892 893 return convertView; 894 } 895 896 @Override 897 public int getCount() { 898 return mCursorCount + mFooters.size(); 899 } 900 901 @Override 902 public Cursor getItem(int position) { 903 if (position < mCursorCount) { 904 mCursor.moveToPosition(position); 905 return mCursor; 906 } else { 907 return null; 908 } 909 } 910 911 @Override 912 public long getItemId(int position) { 913 return position; 914 } 915 916 @Override 917 public int getViewTypeCount() { 918 return 4; 919 } 920 921 @Override 922 public int getItemViewType(int position) { 923 if (position < mCursorCount) { 924 return 0; 925 } else { 926 position -= mCursorCount; 927 return mFooters.get(position).getItemViewType(); 928 } 929 } 930 } 931 932 private static class ThumbnailAsyncTask extends AsyncTask<Uri, Void, Bitmap> { 933 private final Uri mUri; 934 private final ImageView mIconMime; 935 private final ImageView mIconThumb; 936 private final Point mThumbSize; 937 private final CancellationSignal mSignal; 938 939 public ThumbnailAsyncTask( 940 Uri uri, ImageView iconMime, ImageView iconThumb, Point thumbSize) { 941 mUri = uri; 942 mIconMime = iconMime; 943 mIconThumb = iconThumb; 944 mThumbSize = thumbSize; 945 mSignal = new CancellationSignal(); 946 } 947 948 public void reallyCancel() { 949 cancel(false); 950 mSignal.cancel(); 951 } 952 953 @Override 954 protected Bitmap doInBackground(Uri... params) { 955 final Context context = mIconThumb.getContext(); 956 957 Bitmap result = null; 958 try { 959 // TODO: switch to using unstable provider 960 result = DocumentsContract.getDocumentThumbnail( 961 context.getContentResolver(), mUri, mThumbSize, mSignal); 962 if (result != null) { 963 final ThumbnailCache thumbs = DocumentsApplication.getThumbnailsCache( 964 context, mThumbSize); 965 thumbs.put(mUri, result); 966 } 967 } catch (Exception e) { 968 Log.w(TAG, "Failed to load thumbnail: " + e); 969 } 970 return result; 971 } 972 973 @Override 974 protected void onPostExecute(Bitmap result) { 975 if (mIconThumb.getTag() == this && result != null) { 976 mIconThumb.setTag(null); 977 mIconThumb.setImageBitmap(result); 978 979 mIconMime.setAlpha(1f); 980 mIconMime.animate().alpha(0f).start(); 981 mIconThumb.setAlpha(0f); 982 mIconThumb.animate().alpha(1f).start(); 983 } 984 } 985 } 986 987 private static String formatTime(Context context, long when) { 988 // TODO: DateUtils should make this easier 989 Time then = new Time(); 990 then.set(when); 991 Time now = new Time(); 992 now.setToNow(); 993 994 int flags = DateUtils.FORMAT_NO_NOON | DateUtils.FORMAT_NO_MIDNIGHT 995 | DateUtils.FORMAT_ABBREV_ALL; 996 997 if (then.year != now.year) { 998 flags |= DateUtils.FORMAT_SHOW_YEAR | DateUtils.FORMAT_SHOW_DATE; 999 } else if (then.yearDay != now.yearDay) { 1000 flags |= DateUtils.FORMAT_SHOW_DATE; 1001 } else { 1002 flags |= DateUtils.FORMAT_SHOW_TIME; 1003 } 1004 1005 return DateUtils.formatDateTime(context, when, flags); 1006 } 1007 1008 private String findCommonMimeType(List<String> mimeTypes) { 1009 String[] commonType = mimeTypes.get(0).split("/"); 1010 if (commonType.length != 2) { 1011 return "*/*"; 1012 } 1013 1014 for (int i = 1; i < mimeTypes.size(); i++) { 1015 String[] type = mimeTypes.get(i).split("/"); 1016 if (type.length != 2) continue; 1017 1018 if (!commonType[1].equals(type[1])) { 1019 commonType[1] = "*"; 1020 } 1021 1022 if (!commonType[0].equals(type[0])) { 1023 commonType[0] = "*"; 1024 commonType[1] = "*"; 1025 break; 1026 } 1027 } 1028 1029 return commonType[0] + "/" + commonType[1]; 1030 } 1031 1032 private void setEnabledRecursive(View v, boolean enabled) { 1033 if (v == null) return; 1034 if (v.isEnabled() == enabled) return; 1035 v.setEnabled(enabled); 1036 1037 if (v instanceof ViewGroup) { 1038 final ViewGroup vg = (ViewGroup) v; 1039 for (int i = vg.getChildCount() - 1; i >= 0; i--) { 1040 setEnabledRecursive(vg.getChildAt(i), enabled); 1041 } 1042 } 1043 } 1044} 1045