1 /* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.launcher3.folder; 18 19 import static com.android.launcher3.LauncherAnimUtils.SPRING_LOADED_EXIT_DELAY; 20 import static com.android.launcher3.LauncherState.NORMAL; 21 import static com.android.launcher3.compat.AccessibilityManagerCompat.sendCustomAccessibilityEvent; 22 23 import android.animation.Animator; 24 import android.animation.AnimatorListenerAdapter; 25 import android.animation.AnimatorSet; 26 import android.annotation.SuppressLint; 27 import android.content.Context; 28 import android.content.res.Resources; 29 import android.graphics.Rect; 30 import android.text.InputType; 31 import android.text.Selection; 32 import android.util.AttributeSet; 33 import android.util.Log; 34 import android.util.Pair; 35 import android.view.ActionMode; 36 import android.view.FocusFinder; 37 import android.view.KeyEvent; 38 import android.view.Menu; 39 import android.view.MenuItem; 40 import android.view.MotionEvent; 41 import android.view.View; 42 import android.view.ViewDebug; 43 import android.view.ViewGroup; 44 import android.view.accessibility.AccessibilityEvent; 45 import android.view.animation.AnimationUtils; 46 import android.view.inputmethod.EditorInfo; 47 import android.widget.TextView; 48 49 import com.android.launcher3.AbstractFloatingView; 50 import com.android.launcher3.Alarm; 51 import com.android.launcher3.AppInfo; 52 import com.android.launcher3.BubbleTextView; 53 import com.android.launcher3.CellLayout; 54 import com.android.launcher3.DeviceProfile; 55 import com.android.launcher3.DragSource; 56 import com.android.launcher3.DropTarget; 57 import com.android.launcher3.ExtendedEditText; 58 import com.android.launcher3.FolderInfo; 59 import com.android.launcher3.FolderInfo.FolderListener; 60 import com.android.launcher3.ItemInfo; 61 import com.android.launcher3.Launcher; 62 import com.android.launcher3.LauncherSettings; 63 import com.android.launcher3.OnAlarmListener; 64 import com.android.launcher3.PagedView; 65 import com.android.launcher3.R; 66 import com.android.launcher3.ShortcutInfo; 67 import com.android.launcher3.Utilities; 68 import com.android.launcher3.Workspace.ItemOperator; 69 import com.android.launcher3.accessibility.AccessibleDragListenerAdapter; 70 import com.android.launcher3.config.FeatureFlags; 71 import com.android.launcher3.dragndrop.DragController; 72 import com.android.launcher3.dragndrop.DragController.DragListener; 73 import com.android.launcher3.dragndrop.DragLayer; 74 import com.android.launcher3.dragndrop.DragOptions; 75 import com.android.launcher3.logging.LoggerUtils; 76 import com.android.launcher3.pageindicators.PageIndicatorDots; 77 import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType; 78 import com.android.launcher3.userevent.nano.LauncherLogProto.Target; 79 import com.android.launcher3.util.Thunk; 80 import com.android.launcher3.widget.PendingAddShortcutInfo; 81 82 import java.util.ArrayList; 83 import java.util.Collections; 84 import java.util.Comparator; 85 import java.util.List; 86 87 /** 88 * Represents a set of icons chosen by the user or generated by the system. 89 */ 90 public class Folder extends AbstractFloatingView implements DragSource, 91 View.OnLongClickListener, DropTarget, FolderListener, TextView.OnEditorActionListener, 92 View.OnFocusChangeListener, DragListener, ExtendedEditText.OnBackKeyListener { 93 private static final String TAG = "Launcher.Folder"; 94 95 /** 96 * We avoid measuring {@link #mContent} with a 0 width or height, as this 97 * results in CellLayout being measured as UNSPECIFIED, which it does not support. 98 */ 99 private static final int MIN_CONTENT_DIMEN = 5; 100 101 static final int STATE_NONE = -1; 102 static final int STATE_SMALL = 0; 103 static final int STATE_ANIMATING = 1; 104 static final int STATE_OPEN = 2; 105 106 /** 107 * Time for which the scroll hint is shown before automatically changing page. 108 */ 109 public static final int SCROLL_HINT_DURATION = 500; 110 public static final int RESCROLL_DELAY = PagedView.PAGE_SNAP_ANIMATION_DURATION + 150; 111 112 public static final int SCROLL_NONE = -1; 113 public static final int SCROLL_LEFT = 0; 114 public static final int SCROLL_RIGHT = 1; 115 116 /** 117 * Fraction of icon width which behave as scroll region. 118 */ 119 private static final float ICON_OVERSCROLL_WIDTH_FACTOR = 0.45f; 120 121 private static final int FOLDER_NAME_ANIMATION_DURATION = 633; 122 123 private static final int REORDER_DELAY = 250; 124 private static final int ON_EXIT_CLOSE_DELAY = 400; 125 private static final Rect sTempRect = new Rect(); 126 127 private static String sDefaultFolderName; 128 private static String sHintText; 129 130 private final Alarm mReorderAlarm = new Alarm(); 131 private final Alarm mOnExitAlarm = new Alarm(); 132 private final Alarm mOnScrollHintAlarm = new Alarm(); 133 @Thunk final Alarm mScrollPauseAlarm = new Alarm(); 134 135 @Thunk final ArrayList<View> mItemsInReadingOrder = new ArrayList<View>(); 136 137 private AnimatorSet mCurrentAnimator; 138 139 protected final Launcher mLauncher; 140 protected DragController mDragController; 141 public FolderInfo mInfo; 142 143 @Thunk FolderIcon mFolderIcon; 144 145 @Thunk FolderPagedView mContent; 146 public ExtendedEditText mFolderName; 147 private PageIndicatorDots mPageIndicator; 148 149 private View mFooter; 150 private int mFooterHeight; 151 152 // Cell ranks used for drag and drop 153 @Thunk int mTargetRank, mPrevTargetRank, mEmptyCellRank; 154 155 @ViewDebug.ExportedProperty(category = "launcher", 156 mapping = { 157 @ViewDebug.IntToString(from = STATE_NONE, to = "STATE_NONE"), 158 @ViewDebug.IntToString(from = STATE_SMALL, to = "STATE_SMALL"), 159 @ViewDebug.IntToString(from = STATE_ANIMATING, to = "STATE_ANIMATING"), 160 @ViewDebug.IntToString(from = STATE_OPEN, to = "STATE_OPEN"), 161 }) 162 @Thunk int mState = STATE_NONE; 163 @ViewDebug.ExportedProperty(category = "launcher") 164 private boolean mRearrangeOnClose = false; 165 boolean mItemsInvalidated = false; 166 private View mCurrentDragView; 167 private boolean mIsExternalDrag; 168 private boolean mDragInProgress = false; 169 private boolean mDeleteFolderOnDropCompleted = false; 170 private boolean mSuppressFolderDeletion = false; 171 private boolean mItemAddedBackToSelfViaIcon = false; 172 @Thunk float mFolderIconPivotX; 173 @Thunk float mFolderIconPivotY; 174 private boolean mIsEditingName = false; 175 176 @ViewDebug.ExportedProperty(category = "launcher") 177 private boolean mDestroyed; 178 179 // Folder scrolling 180 private int mScrollAreaOffset; 181 182 @Thunk int mScrollHintDir = SCROLL_NONE; 183 @Thunk int mCurrentScrollDir = SCROLL_NONE; 184 185 /** 186 * Used to inflate the Workspace from XML. 187 * 188 * @param context The application's context. 189 * @param attrs The attributes set containing the Workspace's customization values. 190 */ 191 public Folder(Context context, AttributeSet attrs) { 192 super(context, attrs); 193 setAlwaysDrawnWithCacheEnabled(false); 194 Resources res = getResources(); 195 196 if (sDefaultFolderName == null) { 197 sDefaultFolderName = res.getString(R.string.folder_name); 198 } 199 if (sHintText == null) { 200 sHintText = res.getString(R.string.folder_hint_text); 201 } 202 mLauncher = Launcher.getLauncher(context); 203 // We need this view to be focusable in touch mode so that when text editing of the folder 204 // name is complete, we have something to focus on, thus hiding the cursor and giving 205 // reliable behavior when clicking the text field (since it will always gain focus on click). 206 setFocusableInTouchMode(true); 207 } 208 209 @Override 210 protected void onFinishInflate() { 211 super.onFinishInflate(); 212 mContent = findViewById(R.id.folder_content); 213 mContent.setFolder(this); 214 215 mPageIndicator = findViewById(R.id.folder_page_indicator); 216 mFolderName = findViewById(R.id.folder_name); 217 mFolderName.setOnBackKeyListener(this); 218 mFolderName.setOnFocusChangeListener(this); 219 220 if (!Utilities.ATLEAST_MARSHMALLOW) { 221 // We disable action mode in older OSes where floating selection menu is not yet 222 // available. 223 mFolderName.setCustomSelectionActionModeCallback(new ActionMode.Callback() { 224 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 225 return false; 226 } 227 228 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 229 return false; 230 } 231 232 public void onDestroyActionMode(ActionMode mode) { 233 } 234 235 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 236 return false; 237 } 238 }); 239 } 240 mFolderName.setOnEditorActionListener(this); 241 mFolderName.setSelectAllOnFocus(true); 242 mFolderName.setInputType(mFolderName.getInputType() 243 & ~InputType.TYPE_TEXT_FLAG_AUTO_CORRECT 244 & ~InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS 245 | InputType.TYPE_TEXT_FLAG_CAP_WORDS); 246 mFolderName.forceDisableSuggestions(true); 247 248 mFooter = findViewById(R.id.folder_footer); 249 250 // We find out how tall footer wants to be (it is set to wrap_content), so that 251 // we can allocate the appropriate amount of space for it. 252 int measureSpec = MeasureSpec.UNSPECIFIED; 253 mFooter.measure(measureSpec, measureSpec); 254 mFooterHeight = mFooter.getMeasuredHeight(); 255 } 256 257 public boolean onLongClick(View v) { 258 // Return if global dragging is not enabled 259 if (!mLauncher.isDraggingEnabled()) return true; 260 return startDrag(v, new DragOptions()); 261 } 262 263 public boolean startDrag(View v, DragOptions options) { 264 Object tag = v.getTag(); 265 if (tag instanceof ShortcutInfo) { 266 ShortcutInfo item = (ShortcutInfo) tag; 267 268 mEmptyCellRank = item.rank; 269 mCurrentDragView = v; 270 271 mDragController.addDragListener(this); 272 if (options.isAccessibleDrag) { 273 mDragController.addDragListener(new AccessibleDragListenerAdapter( 274 mContent, CellLayout.FOLDER_ACCESSIBILITY_DRAG) { 275 276 @Override 277 protected void enableAccessibleDrag(boolean enable) { 278 super.enableAccessibleDrag(enable); 279 mFooter.setImportantForAccessibility(enable 280 ? IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS 281 : IMPORTANT_FOR_ACCESSIBILITY_AUTO); 282 } 283 }); 284 } 285 286 mLauncher.getWorkspace().beginDragShared(v, this, options); 287 } 288 return true; 289 } 290 291 @Override 292 public void onDragStart(DropTarget.DragObject dragObject, DragOptions options) { 293 if (dragObject.dragSource != this) { 294 return; 295 } 296 297 mContent.removeItem(mCurrentDragView); 298 if (dragObject.dragInfo instanceof ShortcutInfo) { 299 mItemsInvalidated = true; 300 301 // We do not want to get events for the item being removed, as they will get handled 302 // when the drop completes 303 try (SuppressInfoChanges s = new SuppressInfoChanges()) { 304 mInfo.remove((ShortcutInfo) dragObject.dragInfo, true); 305 } 306 } 307 mDragInProgress = true; 308 mItemAddedBackToSelfViaIcon = false; 309 } 310 311 @Override 312 public void onDragEnd() { 313 if (mIsExternalDrag && mDragInProgress) { 314 completeDragExit(); 315 } 316 mDragInProgress = false; 317 mDragController.removeDragListener(this); 318 } 319 320 public boolean isEditingName() { 321 return mIsEditingName; 322 } 323 324 public void startEditingFolderName() { 325 post(new Runnable() { 326 @Override 327 public void run() { 328 mFolderName.setHint(""); 329 mIsEditingName = true; 330 } 331 }); 332 } 333 334 335 @Override 336 public boolean onBackKey() { 337 // Convert to a string here to ensure that no other state associated with the text field 338 // gets saved. 339 String newTitle = mFolderName.getText().toString(); 340 mInfo.setTitle(newTitle); 341 mLauncher.getModelWriter().updateItemInDatabase(mInfo); 342 343 mFolderName.setHint(sDefaultFolderName.contentEquals(newTitle) ? sHintText : null); 344 345 sendCustomAccessibilityEvent( 346 this, AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED, 347 getContext().getString(R.string.folder_renamed, newTitle)); 348 349 // This ensures that focus is gained every time the field is clicked, which selects all 350 // the text and brings up the soft keyboard if necessary. 351 mFolderName.clearFocus(); 352 353 Selection.setSelection(mFolderName.getText(), 0, 0); 354 mIsEditingName = false; 355 return true; 356 } 357 358 public boolean onEditorAction(TextView v, int actionId, KeyEvent event) { 359 if (actionId == EditorInfo.IME_ACTION_DONE) { 360 mFolderName.dispatchBackKey(); 361 return true; 362 } 363 return false; 364 } 365 366 public FolderIcon getFolderIcon() { 367 return mFolderIcon; 368 } 369 370 public void setDragController(DragController dragController) { 371 mDragController = dragController; 372 } 373 374 public void setFolderIcon(FolderIcon icon) { 375 mFolderIcon = icon; 376 } 377 378 @Override 379 protected void onAttachedToWindow() { 380 // requestFocus() causes the focus onto the folder itself, which doesn't cause visual 381 // effect but the next arrow key can start the keyboard focus inside of the folder, not 382 // the folder itself. 383 requestFocus(); 384 super.onAttachedToWindow(); 385 } 386 387 @Override 388 public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) { 389 // When the folder gets focus, we don't want to announce the list of items. 390 return true; 391 } 392 393 @Override 394 public View focusSearch(int direction) { 395 // When the folder is focused, further focus search should be within the folder contents. 396 return FocusFinder.getInstance().findNextFocus(this, null, direction); 397 } 398 399 /** 400 * @return the FolderInfo object associated with this folder 401 */ 402 public FolderInfo getInfo() { 403 return mInfo; 404 } 405 406 void bind(FolderInfo info) { 407 mInfo = info; 408 ArrayList<ShortcutInfo> children = info.contents; 409 Collections.sort(children, ITEM_POS_COMPARATOR); 410 mContent.bindItems(children); 411 412 DragLayer.LayoutParams lp = (DragLayer.LayoutParams) getLayoutParams(); 413 if (lp == null) { 414 lp = new DragLayer.LayoutParams(0, 0); 415 lp.customPosition = true; 416 setLayoutParams(lp); 417 } 418 centerAboutIcon(); 419 420 mItemsInvalidated = true; 421 updateTextViewFocus(); 422 mInfo.addListener(this); 423 424 if (!sDefaultFolderName.contentEquals(mInfo.title)) { 425 mFolderName.setText(mInfo.title); 426 mFolderName.setHint(null); 427 } else { 428 mFolderName.setText(""); 429 mFolderName.setHint(sHintText); 430 } 431 432 // In case any children didn't come across during loading, clean up the folder accordingly 433 mFolderIcon.post(new Runnable() { 434 public void run() { 435 if (getItemCount() <= 1) { 436 replaceFolderWithFinalItem(); 437 } 438 } 439 }); 440 } 441 442 /** 443 * Creates a new UserFolder, inflated from R.layout.user_folder. 444 * 445 * @param launcher The main activity. 446 * 447 * @return A new UserFolder. 448 */ 449 @SuppressLint("InflateParams") 450 static Folder fromXml(Launcher launcher) { 451 return (Folder) launcher.getLayoutInflater() 452 .inflate(R.layout.user_folder_icon_normalized, null); 453 } 454 455 private void startAnimation(final AnimatorSet a) { 456 if (mCurrentAnimator != null && mCurrentAnimator.isRunning()) { 457 mCurrentAnimator.cancel(); 458 } 459 a.addListener(new AnimatorListenerAdapter() { 460 @Override 461 public void onAnimationStart(Animator animation) { 462 mState = STATE_ANIMATING; 463 mCurrentAnimator = a; 464 } 465 466 @Override 467 public void onAnimationEnd(Animator animation) { 468 mCurrentAnimator = null; 469 } 470 }); 471 a.start(); 472 } 473 474 /** 475 * Opens the user folder described by the specified tag. The opening of the folder 476 * is animated relative to the specified View. If the View is null, no animation 477 * is played. 478 */ 479 public void animateOpen() { 480 Folder openFolder = getOpen(mLauncher); 481 if (openFolder != null && openFolder != this) { 482 // Close any open folder before opening a folder. 483 openFolder.close(true); 484 } 485 486 mIsOpen = true; 487 488 DragLayer dragLayer = mLauncher.getDragLayer(); 489 // Just verify that the folder hasn't already been added to the DragLayer. 490 // There was a one-off crash where the folder had a parent already. 491 if (getParent() == null) { 492 dragLayer.addView(this); 493 mDragController.addDropTarget(this); 494 } else { 495 if (FeatureFlags.IS_DOGFOOD_BUILD) { 496 Log.e(TAG, "Opening folder (" + this + ") which already has a parent:" 497 + getParent()); 498 } 499 } 500 501 mContent.completePendingPageChanges(); 502 if (!mDragInProgress) { 503 // Open on the first page. 504 mContent.snapToPageImmediately(0); 505 } 506 507 // This is set to true in close(), but isn't reset to false until onDropCompleted(). This 508 // leads to an inconsistent state if you drag out of the folder and drag back in without 509 // dropping. One resulting issue is that replaceFolderWithFinalItem() can be called twice. 510 mDeleteFolderOnDropCompleted = false; 511 512 centerAboutIcon(); 513 514 AnimatorSet anim = new FolderAnimationManager(this, true /* isOpening */).getAnimator(); 515 anim.addListener(new AnimatorListenerAdapter() { 516 @Override 517 public void onAnimationStart(Animator animation) { 518 mFolderIcon.setBackgroundVisible(false); 519 mFolderIcon.drawLeaveBehindIfExists(); 520 } 521 @Override 522 public void onAnimationEnd(Animator animation) { 523 mState = STATE_OPEN; 524 announceAccessibilityChanges(); 525 526 mLauncher.getUserEventDispatcher().resetElapsedContainerMillis("folder opened"); 527 mContent.setFocusOnFirstChild(); 528 } 529 }); 530 531 // Footer animation 532 if (mContent.getPageCount() > 1 && !mInfo.hasOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION)) { 533 int footerWidth = mContent.getDesiredWidth() 534 - mFooter.getPaddingLeft() - mFooter.getPaddingRight(); 535 536 float textWidth = mFolderName.getPaint().measureText(mFolderName.getText().toString()); 537 float translation = (footerWidth - textWidth) / 2; 538 mFolderName.setTranslationX(mContent.mIsRtl ? -translation : translation); 539 mPageIndicator.prepareEntryAnimation(); 540 541 // Do not update the flag if we are in drag mode. The flag will be updated, when we 542 // actually drop the icon. 543 final boolean updateAnimationFlag = !mDragInProgress; 544 anim.addListener(new AnimatorListenerAdapter() { 545 546 @SuppressLint("InlinedApi") 547 @Override 548 public void onAnimationEnd(Animator animation) { 549 mFolderName.animate().setDuration(FOLDER_NAME_ANIMATION_DURATION) 550 .translationX(0) 551 .setInterpolator(AnimationUtils.loadInterpolator( 552 mLauncher, android.R.interpolator.fast_out_slow_in)); 553 mPageIndicator.playEntryAnimation(); 554 555 if (updateAnimationFlag) { 556 mInfo.setOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION, true, 557 mLauncher.getModelWriter()); 558 } 559 } 560 }); 561 } else { 562 mFolderName.setTranslationX(0); 563 } 564 565 mPageIndicator.stopAllAnimations(); 566 startAnimation(anim); 567 568 // Make sure the folder picks up the last drag move even if the finger doesn't move. 569 if (mDragController.isDragging()) { 570 mDragController.forceTouchMove(); 571 } 572 573 mContent.verifyVisibleHighResIcons(mContent.getNextPage()); 574 } 575 576 public void beginExternalDrag() { 577 mEmptyCellRank = mContent.allocateRankForNewItem(); 578 mIsExternalDrag = true; 579 mDragInProgress = true; 580 581 // Since this folder opened by another controller, it might not get onDrop or 582 // onDropComplete. Perform cleanup once drag-n-drop ends. 583 mDragController.addDragListener(this); 584 } 585 586 @Override 587 protected boolean isOfType(int type) { 588 return (type & TYPE_FOLDER) != 0; 589 } 590 591 @Override 592 protected void handleClose(boolean animate) { 593 mIsOpen = false; 594 595 if (isEditingName()) { 596 mFolderName.dispatchBackKey(); 597 } 598 599 if (mFolderIcon != null) { 600 mFolderIcon.clearLeaveBehindIfExists(); 601 } 602 603 if (animate) { 604 animateClosed(); 605 } else { 606 closeComplete(false); 607 post(this::announceAccessibilityChanges); 608 } 609 610 // Notify the accessibility manager that this folder "window" has disappeared and no 611 // longer occludes the workspace items 612 mLauncher.getDragLayer().sendAccessibilityEvent( 613 AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 614 } 615 616 private void animateClosed() { 617 AnimatorSet a = new FolderAnimationManager(this, false /* isOpening */).getAnimator(); 618 a.addListener(new AnimatorListenerAdapter() { 619 @Override 620 public void onAnimationEnd(Animator animation) { 621 closeComplete(true); 622 announceAccessibilityChanges(); 623 } 624 }); 625 startAnimation(a); 626 } 627 628 @Override 629 protected Pair<View, String> getAccessibilityTarget() { 630 return Pair.create(mContent, mIsOpen ? mContent.getAccessibilityDescription() 631 : getContext().getString(R.string.folder_closed)); 632 } 633 634 private void closeComplete(boolean wasAnimated) { 635 // TODO: Clear all active animations. 636 DragLayer parent = (DragLayer) getParent(); 637 if (parent != null) { 638 parent.removeView(this); 639 } 640 mDragController.removeDropTarget(this); 641 clearFocus(); 642 if (mFolderIcon != null) { 643 mFolderIcon.setVisibility(View.VISIBLE); 644 mFolderIcon.setBackgroundVisible(true); 645 mFolderIcon.mFolderName.setTextVisibility(true); 646 if (wasAnimated) { 647 mFolderIcon.mBackground.fadeInBackgroundShadow(); 648 mFolderIcon.mBackground.animateBackgroundStroke(); 649 mFolderIcon.onFolderClose(mContent.getCurrentPage()); 650 if (mFolderIcon.hasBadge()) { 651 mFolderIcon.createBadgeScaleAnimator(0f, 1f).start(); 652 } 653 mFolderIcon.requestFocus(); 654 } 655 } 656 657 if (mRearrangeOnClose) { 658 rearrangeChildren(); 659 mRearrangeOnClose = false; 660 } 661 if (getItemCount() <= 1) { 662 if (!mDragInProgress && !mSuppressFolderDeletion) { 663 replaceFolderWithFinalItem(); 664 } else if (mDragInProgress) { 665 mDeleteFolderOnDropCompleted = true; 666 } 667 } 668 mSuppressFolderDeletion = false; 669 clearDragInfo(); 670 mState = STATE_SMALL; 671 mContent.setCurrentPage(0); 672 } 673 674 @Override 675 public boolean acceptDrop(DragObject d) { 676 final ItemInfo item = d.dragInfo; 677 final int itemType = item.itemType; 678 return ((itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || 679 itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT || 680 itemType == LauncherSettings.Favorites.ITEM_TYPE_DEEP_SHORTCUT)); 681 } 682 683 public void onDragEnter(DragObject d) { 684 mPrevTargetRank = -1; 685 mOnExitAlarm.cancelAlarm(); 686 // Get the area offset such that the folder only closes if half the drag icon width 687 // is outside the folder area 688 mScrollAreaOffset = d.dragView.getDragRegionWidth() / 2 - d.xOffset; 689 } 690 691 OnAlarmListener mReorderAlarmListener = new OnAlarmListener() { 692 public void onAlarm(Alarm alarm) { 693 mContent.realTimeReorder(mEmptyCellRank, mTargetRank); 694 mEmptyCellRank = mTargetRank; 695 } 696 }; 697 698 public boolean isLayoutRtl() { 699 return (getLayoutDirection() == LAYOUT_DIRECTION_RTL); 700 } 701 702 private int getTargetRank(DragObject d, float[] recycle) { 703 recycle = d.getVisualCenter(recycle); 704 return mContent.findNearestArea( 705 (int) recycle[0] - getPaddingLeft(), (int) recycle[1] - getPaddingTop()); 706 } 707 708 @Override 709 public void onDragOver(DragObject d) { 710 if (mScrollPauseAlarm.alarmPending()) { 711 return; 712 } 713 final float[] r = new float[2]; 714 mTargetRank = getTargetRank(d, r); 715 716 if (mTargetRank != mPrevTargetRank) { 717 mReorderAlarm.cancelAlarm(); 718 mReorderAlarm.setOnAlarmListener(mReorderAlarmListener); 719 mReorderAlarm.setAlarm(REORDER_DELAY); 720 mPrevTargetRank = mTargetRank; 721 722 if (d.stateAnnouncer != null) { 723 d.stateAnnouncer.announce(getContext().getString(R.string.move_to_position, 724 mTargetRank + 1)); 725 } 726 } 727 728 float x = r[0]; 729 int currentPage = mContent.getNextPage(); 730 731 float cellOverlap = mContent.getCurrentCellLayout().getCellWidth() 732 * ICON_OVERSCROLL_WIDTH_FACTOR; 733 boolean isOutsideLeftEdge = x < cellOverlap; 734 boolean isOutsideRightEdge = x > (getWidth() - cellOverlap); 735 736 if (currentPage > 0 && (mContent.mIsRtl ? isOutsideRightEdge : isOutsideLeftEdge)) { 737 showScrollHint(SCROLL_LEFT, d); 738 } else if (currentPage < (mContent.getPageCount() - 1) 739 && (mContent.mIsRtl ? isOutsideLeftEdge : isOutsideRightEdge)) { 740 showScrollHint(SCROLL_RIGHT, d); 741 } else { 742 mOnScrollHintAlarm.cancelAlarm(); 743 if (mScrollHintDir != SCROLL_NONE) { 744 mContent.clearScrollHint(); 745 mScrollHintDir = SCROLL_NONE; 746 } 747 } 748 } 749 750 private void showScrollHint(int direction, DragObject d) { 751 // Show scroll hint on the right 752 if (mScrollHintDir != direction) { 753 mContent.showScrollHint(direction); 754 mScrollHintDir = direction; 755 } 756 757 // Set alarm for when the hint is complete 758 if (!mOnScrollHintAlarm.alarmPending() || mCurrentScrollDir != direction) { 759 mCurrentScrollDir = direction; 760 mOnScrollHintAlarm.cancelAlarm(); 761 mOnScrollHintAlarm.setOnAlarmListener(new OnScrollHintListener(d)); 762 mOnScrollHintAlarm.setAlarm(SCROLL_HINT_DURATION); 763 764 mReorderAlarm.cancelAlarm(); 765 mTargetRank = mEmptyCellRank; 766 } 767 } 768 769 OnAlarmListener mOnExitAlarmListener = new OnAlarmListener() { 770 public void onAlarm(Alarm alarm) { 771 completeDragExit(); 772 } 773 }; 774 775 public void completeDragExit() { 776 if (mIsOpen) { 777 close(true); 778 mRearrangeOnClose = true; 779 } else if (mState == STATE_ANIMATING) { 780 mRearrangeOnClose = true; 781 } else { 782 rearrangeChildren(); 783 clearDragInfo(); 784 } 785 } 786 787 private void clearDragInfo() { 788 mCurrentDragView = null; 789 mIsExternalDrag = false; 790 } 791 792 public void onDragExit(DragObject d) { 793 // We only close the folder if this is a true drag exit, ie. not because 794 // a drop has occurred above the folder. 795 if (!d.dragComplete) { 796 mOnExitAlarm.setOnAlarmListener(mOnExitAlarmListener); 797 mOnExitAlarm.setAlarm(ON_EXIT_CLOSE_DELAY); 798 } 799 mReorderAlarm.cancelAlarm(); 800 801 mOnScrollHintAlarm.cancelAlarm(); 802 mScrollPauseAlarm.cancelAlarm(); 803 if (mScrollHintDir != SCROLL_NONE) { 804 mContent.clearScrollHint(); 805 mScrollHintDir = SCROLL_NONE; 806 } 807 } 808 809 /** 810 * When performing an accessibility drop, onDrop is sent immediately after onDragEnter. So we 811 * need to complete all transient states based on timers. 812 */ 813 @Override 814 public void prepareAccessibilityDrop() { 815 if (mReorderAlarm.alarmPending()) { 816 mReorderAlarm.cancelAlarm(); 817 mReorderAlarmListener.onAlarm(mReorderAlarm); 818 } 819 } 820 821 public void onDropCompleted(final View target, final DragObject d, 822 final boolean success) { 823 824 if (success) { 825 if (mDeleteFolderOnDropCompleted && !mItemAddedBackToSelfViaIcon && target != this) { 826 replaceFolderWithFinalItem(); 827 } 828 } else { 829 // The drag failed, we need to return the item to the folder 830 ShortcutInfo info = (ShortcutInfo) d.dragInfo; 831 View icon = (mCurrentDragView != null && mCurrentDragView.getTag() == info) 832 ? mCurrentDragView : mContent.createNewView(info); 833 ArrayList<View> views = getItemsInReadingOrder(); 834 views.add(info.rank, icon); 835 mContent.arrangeChildren(views, views.size()); 836 mItemsInvalidated = true; 837 838 try (SuppressInfoChanges s = new SuppressInfoChanges()) { 839 mFolderIcon.onDrop(d, true /* itemReturnedOnFailedDrop */); 840 } 841 } 842 843 if (target != this) { 844 if (mOnExitAlarm.alarmPending()) { 845 mOnExitAlarm.cancelAlarm(); 846 if (!success) { 847 mSuppressFolderDeletion = true; 848 } 849 mScrollPauseAlarm.cancelAlarm(); 850 completeDragExit(); 851 } 852 } 853 854 mDeleteFolderOnDropCompleted = false; 855 mDragInProgress = false; 856 mItemAddedBackToSelfViaIcon = false; 857 mCurrentDragView = null; 858 859 // Reordering may have occured, and we need to save the new item locations. We do this once 860 // at the end to prevent unnecessary database operations. 861 updateItemLocationsInDatabaseBatch(); 862 863 // Use the item count to check for multi-page as the folder UI may not have 864 // been refreshed yet. 865 if (getItemCount() <= mContent.itemsPerPage()) { 866 // Show the animation, next time something is added to the folder. 867 mInfo.setOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION, false, 868 mLauncher.getModelWriter()); 869 } 870 } 871 872 private void updateItemLocationsInDatabaseBatch() { 873 ArrayList<View> list = getItemsInReadingOrder(); 874 ArrayList<ItemInfo> items = new ArrayList<ItemInfo>(); 875 for (int i = 0; i < list.size(); i++) { 876 View v = list.get(i); 877 ItemInfo info = (ItemInfo) v.getTag(); 878 info.rank = i; 879 items.add(info); 880 } 881 882 mLauncher.getModelWriter().moveItemsInDatabase(items, mInfo.id, 0); 883 } 884 885 public void notifyDrop() { 886 if (mDragInProgress) { 887 mItemAddedBackToSelfViaIcon = true; 888 } 889 } 890 891 public boolean isDropEnabled() { 892 return mState != STATE_ANIMATING; 893 } 894 895 private void centerAboutIcon() { 896 DeviceProfile grid = mLauncher.getDeviceProfile(); 897 898 DragLayer.LayoutParams lp = (DragLayer.LayoutParams) getLayoutParams(); 899 DragLayer parent = (DragLayer) mLauncher.findViewById(R.id.drag_layer); 900 int width = getFolderWidth(); 901 int height = getFolderHeight(); 902 903 parent.getDescendantRectRelativeToSelf(mFolderIcon, sTempRect); 904 int centerX = sTempRect.centerX(); 905 int centerY = sTempRect.centerY(); 906 int centeredLeft = centerX - width / 2; 907 int centeredTop = centerY - height / 2; 908 909 // We need to bound the folder to the currently visible workspace area 910 if (mLauncher.getStateManager().getState().overviewUi) { 911 mLauncher.getDragLayer().getDescendantRectRelativeToSelf(mLauncher.getOverviewPanel(), 912 sTempRect); 913 } else { 914 mLauncher.getWorkspace().getPageAreaRelativeToDragLayer(sTempRect); 915 } 916 int left = Math.min(Math.max(sTempRect.left, centeredLeft), 917 sTempRect.right- width); 918 int top = Math.min(Math.max(sTempRect.top, centeredTop), 919 sTempRect.bottom - height); 920 921 int distFromEdgeOfScreen = mLauncher.getWorkspace().getPaddingLeft() + getPaddingLeft(); 922 923 if (grid.isPhone && (grid.availableWidthPx - width) < 4 * distFromEdgeOfScreen) { 924 // Center the folder if it is very close to being centered anyway, by virtue of 925 // filling the majority of the viewport. ie. remove it from the uncanny valley 926 // of centeredness. 927 left = (grid.availableWidthPx - width) / 2; 928 } else if (width >= sTempRect.width()) { 929 // If the folder doesn't fit within the bounds, center it about the desired bounds 930 left = sTempRect.left + (sTempRect.width() - width) / 2; 931 } 932 if (height >= sTempRect.height()) { 933 // Folder height is greater than page height, center on page 934 top = sTempRect.top + (sTempRect.height() - height) / 2; 935 } else { 936 // Folder height is less than page height, so bound it to the absolute open folder 937 // bounds if necessary 938 Rect folderBounds = grid.getAbsoluteOpenFolderBounds(); 939 left = Math.max(folderBounds.left, Math.min(left, folderBounds.right - width)); 940 top = Math.max(folderBounds.top, Math.min(top, folderBounds.bottom - height)); 941 } 942 943 int folderPivotX = width / 2 + (centeredLeft - left); 944 int folderPivotY = height / 2 + (centeredTop - top); 945 setPivotX(folderPivotX); 946 setPivotY(folderPivotY); 947 948 mFolderIconPivotX = (int) (mFolderIcon.getMeasuredWidth() * 949 (1.0f * folderPivotX / width)); 950 mFolderIconPivotY = (int) (mFolderIcon.getMeasuredHeight() * 951 (1.0f * folderPivotY / height)); 952 953 lp.width = width; 954 lp.height = height; 955 lp.x = left; 956 lp.y = top; 957 } 958 959 public float getPivotXForIconAnimation() { 960 return mFolderIconPivotX; 961 } 962 public float getPivotYForIconAnimation() { 963 return mFolderIconPivotY; 964 } 965 966 private int getContentAreaHeight() { 967 DeviceProfile grid = mLauncher.getDeviceProfile(); 968 int maxContentAreaHeight = grid.availableHeightPx 969 - grid.getTotalWorkspacePadding().y - mFooterHeight; 970 int height = Math.min(maxContentAreaHeight, 971 mContent.getDesiredHeight()); 972 return Math.max(height, MIN_CONTENT_DIMEN); 973 } 974 975 private int getContentAreaWidth() { 976 return Math.max(mContent.getDesiredWidth(), MIN_CONTENT_DIMEN); 977 } 978 979 private int getFolderWidth() { 980 return getPaddingLeft() + getPaddingRight() + mContent.getDesiredWidth(); 981 } 982 983 private int getFolderHeight() { 984 return getFolderHeight(getContentAreaHeight()); 985 } 986 987 private int getFolderHeight(int contentAreaHeight) { 988 return getPaddingTop() + getPaddingBottom() + contentAreaHeight + mFooterHeight; 989 } 990 991 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 992 int contentWidth = getContentAreaWidth(); 993 int contentHeight = getContentAreaHeight(); 994 995 int contentAreaWidthSpec = MeasureSpec.makeMeasureSpec(contentWidth, MeasureSpec.EXACTLY); 996 int contentAreaHeightSpec = MeasureSpec.makeMeasureSpec(contentHeight, MeasureSpec.EXACTLY); 997 998 mContent.setFixedSize(contentWidth, contentHeight); 999 mContent.measure(contentAreaWidthSpec, contentAreaHeightSpec); 1000 1001 if (mContent.getChildCount() > 0) { 1002 int cellIconGap = (mContent.getPageAt(0).getCellWidth() 1003 - mLauncher.getDeviceProfile().iconSizePx) / 2; 1004 mFooter.setPadding(mContent.getPaddingLeft() + cellIconGap, 1005 mFooter.getPaddingTop(), 1006 mContent.getPaddingRight() + cellIconGap, 1007 mFooter.getPaddingBottom()); 1008 } 1009 mFooter.measure(contentAreaWidthSpec, 1010 MeasureSpec.makeMeasureSpec(mFooterHeight, MeasureSpec.EXACTLY)); 1011 1012 int folderWidth = getPaddingLeft() + getPaddingRight() + contentWidth; 1013 int folderHeight = getFolderHeight(contentHeight); 1014 setMeasuredDimension(folderWidth, folderHeight); 1015 } 1016 1017 /** 1018 * Rearranges the children based on their rank. 1019 */ 1020 public void rearrangeChildren() { 1021 rearrangeChildren(-1); 1022 } 1023 1024 /** 1025 * Rearranges the children based on their rank. 1026 * @param itemCount if greater than the total children count, empty spaces are left at the end, 1027 * otherwise it is ignored. 1028 */ 1029 public void rearrangeChildren(int itemCount) { 1030 ArrayList<View> views = getItemsInReadingOrder(); 1031 mContent.arrangeChildren(views, Math.max(itemCount, views.size())); 1032 mItemsInvalidated = true; 1033 } 1034 1035 public int getItemCount() { 1036 return mContent.getItemCount(); 1037 } 1038 1039 @Thunk void replaceFolderWithFinalItem() { 1040 // Add the last remaining child to the workspace in place of the folder 1041 Runnable onCompleteRunnable = new Runnable() { 1042 @Override 1043 public void run() { 1044 int itemCount = mInfo.contents.size(); 1045 if (itemCount <= 1) { 1046 View newIcon = null; 1047 1048 if (itemCount == 1) { 1049 // Move the item from the folder to the workspace, in the position of the 1050 // folder 1051 CellLayout cellLayout = mLauncher.getCellLayout(mInfo.container, 1052 mInfo.screenId); 1053 ShortcutInfo finalItem = mInfo.contents.remove(0); 1054 newIcon = mLauncher.createShortcut(cellLayout, finalItem); 1055 mLauncher.getModelWriter().addOrMoveItemInDatabase(finalItem, 1056 mInfo.container, mInfo.screenId, mInfo.cellX, mInfo.cellY); 1057 } 1058 1059 // Remove the folder 1060 mLauncher.removeItem(mFolderIcon, mInfo, true /* deleteFromDb */); 1061 if (mFolderIcon instanceof DropTarget) { 1062 mDragController.removeDropTarget((DropTarget) mFolderIcon); 1063 } 1064 1065 if (newIcon != null) { 1066 // We add the child after removing the folder to prevent both from existing 1067 // at the same time in the CellLayout. We need to add the new item with 1068 // addInScreenFromBind() to ensure that hotseat items are placed correctly. 1069 mLauncher.getWorkspace().addInScreenFromBind(newIcon, mInfo); 1070 1071 // Focus the newly created child 1072 newIcon.requestFocus(); 1073 } 1074 } 1075 } 1076 }; 1077 View finalChild = mContent.getLastItem(); 1078 if (finalChild != null) { 1079 mFolderIcon.performDestroyAnimation(onCompleteRunnable); 1080 } else { 1081 onCompleteRunnable.run(); 1082 } 1083 mDestroyed = true; 1084 } 1085 1086 public boolean isDestroyed() { 1087 return mDestroyed; 1088 } 1089 1090 // This method keeps track of the first and last item in the folder for the purposes 1091 // of keyboard focus 1092 public void updateTextViewFocus() { 1093 final View firstChild = mContent.getFirstItem(); 1094 final View lastChild = mContent.getLastItem(); 1095 if (firstChild != null && lastChild != null) { 1096 mFolderName.setNextFocusDownId(lastChild.getId()); 1097 mFolderName.setNextFocusRightId(lastChild.getId()); 1098 mFolderName.setNextFocusLeftId(lastChild.getId()); 1099 mFolderName.setNextFocusUpId(lastChild.getId()); 1100 // Hitting TAB from the folder name wraps around to the first item on the current 1101 // folder page, and hitting SHIFT+TAB from that item wraps back to the folder name. 1102 mFolderName.setNextFocusForwardId(firstChild.getId()); 1103 // When clicking off the folder when editing the name, this Folder gains focus. When 1104 // pressing an arrow key from that state, give the focus to the first item. 1105 this.setNextFocusDownId(firstChild.getId()); 1106 this.setNextFocusRightId(firstChild.getId()); 1107 this.setNextFocusLeftId(firstChild.getId()); 1108 this.setNextFocusUpId(firstChild.getId()); 1109 // When pressing shift+tab in the above state, give the focus to the last item. 1110 setOnKeyListener(new OnKeyListener() { 1111 @Override 1112 public boolean onKey(View v, int keyCode, KeyEvent event) { 1113 boolean isShiftPlusTab = keyCode == KeyEvent.KEYCODE_TAB && 1114 event.hasModifiers(KeyEvent.META_SHIFT_ON); 1115 if (isShiftPlusTab && Folder.this.isFocused()) { 1116 return lastChild.requestFocus(); 1117 } 1118 return false; 1119 } 1120 }); 1121 } 1122 } 1123 1124 public void onDrop(DragObject d, DragOptions options) { 1125 // If the icon was dropped while the page was being scrolled, we need to compute 1126 // the target location again such that the icon is placed of the final page. 1127 if (!mContent.rankOnCurrentPage(mEmptyCellRank)) { 1128 // Reorder again. 1129 mTargetRank = getTargetRank(d, null); 1130 1131 // Rearrange items immediately. 1132 mReorderAlarmListener.onAlarm(mReorderAlarm); 1133 1134 mOnScrollHintAlarm.cancelAlarm(); 1135 mScrollPauseAlarm.cancelAlarm(); 1136 } 1137 mContent.completePendingPageChanges(); 1138 1139 PendingAddShortcutInfo pasi = d.dragInfo instanceof PendingAddShortcutInfo 1140 ? (PendingAddShortcutInfo) d.dragInfo : null; 1141 ShortcutInfo pasiSi = pasi != null ? pasi.activityInfo.createShortcutInfo() : null; 1142 if (pasi != null && pasiSi == null) { 1143 // There is no ShortcutInfo, so we have to go through a configuration activity. 1144 pasi.container = mInfo.id; 1145 pasi.rank = mEmptyCellRank; 1146 1147 mLauncher.addPendingItem(pasi, pasi.container, pasi.screenId, null, pasi.spanX, 1148 pasi.spanY); 1149 d.deferDragViewCleanupPostAnimation = false; 1150 mRearrangeOnClose = true; 1151 } else { 1152 final ShortcutInfo si; 1153 if (pasiSi != null) { 1154 si = pasiSi; 1155 } else if (d.dragInfo instanceof AppInfo) { 1156 // Came from all apps -- make a copy. 1157 si = ((AppInfo) d.dragInfo).makeShortcut(); 1158 } else { 1159 // ShortcutInfo 1160 si = (ShortcutInfo) d.dragInfo; 1161 } 1162 1163 View currentDragView; 1164 if (mIsExternalDrag) { 1165 currentDragView = mContent.createAndAddViewForRank(si, mEmptyCellRank); 1166 1167 // Actually move the item in the database if it was an external drag. Call this 1168 // before creating the view, so that ShortcutInfo is updated appropriately. 1169 mLauncher.getModelWriter().addOrMoveItemInDatabase( 1170 si, mInfo.id, 0, si.cellX, si.cellY); 1171 1172 // We only need to update the locations if it doesn't get handled in 1173 // #onDropCompleted. 1174 if (d.dragSource != this) { 1175 updateItemLocationsInDatabaseBatch(); 1176 } 1177 mIsExternalDrag = false; 1178 } else { 1179 currentDragView = mCurrentDragView; 1180 mContent.addViewForRank(currentDragView, si, mEmptyCellRank); 1181 } 1182 1183 if (d.dragView.hasDrawn()) { 1184 // Temporarily reset the scale such that the animation target gets calculated 1185 // correctly. 1186 float scaleX = getScaleX(); 1187 float scaleY = getScaleY(); 1188 setScaleX(1.0f); 1189 setScaleY(1.0f); 1190 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, currentDragView, null); 1191 setScaleX(scaleX); 1192 setScaleY(scaleY); 1193 } else { 1194 d.deferDragViewCleanupPostAnimation = false; 1195 currentDragView.setVisibility(VISIBLE); 1196 } 1197 1198 mItemsInvalidated = true; 1199 rearrangeChildren(); 1200 1201 // Temporarily suppress the listener, as we did all the work already here. 1202 try (SuppressInfoChanges s = new SuppressInfoChanges()) { 1203 mInfo.add(si, false); 1204 } 1205 } 1206 1207 // Clear the drag info, as it is no longer being dragged. 1208 mDragInProgress = false; 1209 1210 if (mContent.getPageCount() > 1) { 1211 // The animation has already been shown while opening the folder. 1212 mInfo.setOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION, true, mLauncher.getModelWriter()); 1213 } 1214 1215 mLauncher.getStateManager().goToState(NORMAL, SPRING_LOADED_EXIT_DELAY); 1216 if (d.stateAnnouncer != null) { 1217 d.stateAnnouncer.completeAction(R.string.item_moved); 1218 } 1219 } 1220 1221 // This is used so the item doesn't immediately appear in the folder when added. In one case 1222 // we need to create the illusion that the item isn't added back to the folder yet, to 1223 // to correspond to the animation of the icon back into the folder. This is 1224 public void hideItem(ShortcutInfo info) { 1225 View v = getViewForInfo(info); 1226 v.setVisibility(INVISIBLE); 1227 } 1228 public void showItem(ShortcutInfo info) { 1229 View v = getViewForInfo(info); 1230 v.setVisibility(VISIBLE); 1231 } 1232 1233 @Override 1234 public void onAdd(ShortcutInfo item, int rank) { 1235 View view = mContent.createAndAddViewForRank(item, rank); 1236 mLauncher.getModelWriter().addOrMoveItemInDatabase(item, mInfo.id, 0, item.cellX, 1237 item.cellY); 1238 1239 ArrayList<View> items = new ArrayList<>(getItemsInReadingOrder()); 1240 items.add(rank, view); 1241 mContent.arrangeChildren(items, items.size()); 1242 mItemsInvalidated = true; 1243 } 1244 1245 public void onRemove(ShortcutInfo item) { 1246 mItemsInvalidated = true; 1247 View v = getViewForInfo(item); 1248 mContent.removeItem(v); 1249 if (mState == STATE_ANIMATING) { 1250 mRearrangeOnClose = true; 1251 } else { 1252 rearrangeChildren(); 1253 } 1254 if (getItemCount() <= 1) { 1255 if (mIsOpen) { 1256 close(true); 1257 } else { 1258 replaceFolderWithFinalItem(); 1259 } 1260 } 1261 } 1262 1263 private View getViewForInfo(final ShortcutInfo item) { 1264 return mContent.iterateOverItems(new ItemOperator() { 1265 1266 @Override 1267 public boolean evaluate(ItemInfo info, View view) { 1268 return info == item; 1269 } 1270 }); 1271 } 1272 1273 @Override 1274 public void onItemsChanged(boolean animate) { 1275 updateTextViewFocus(); 1276 } 1277 1278 @Override 1279 public void prepareAutoUpdate() { 1280 close(false); 1281 } 1282 1283 public void onTitleChanged(CharSequence title) { 1284 } 1285 1286 public ArrayList<View> getItemsInReadingOrder() { 1287 if (mItemsInvalidated) { 1288 mItemsInReadingOrder.clear(); 1289 mContent.iterateOverItems(new ItemOperator() { 1290 1291 @Override 1292 public boolean evaluate(ItemInfo info, View view) { 1293 mItemsInReadingOrder.add(view); 1294 return false; 1295 } 1296 }); 1297 mItemsInvalidated = false; 1298 } 1299 return mItemsInReadingOrder; 1300 } 1301 1302 public List<BubbleTextView> getItemsOnPage(int page) { 1303 ArrayList<View> allItems = getItemsInReadingOrder(); 1304 int lastPage = mContent.getPageCount() - 1; 1305 int totalItemsInFolder = allItems.size(); 1306 int itemsPerPage = mContent.itemsPerPage(); 1307 int numItemsOnCurrentPage = page == lastPage 1308 ? totalItemsInFolder - (itemsPerPage * page) 1309 : itemsPerPage; 1310 1311 int startIndex = page * itemsPerPage; 1312 int endIndex = Math.min(startIndex + numItemsOnCurrentPage, allItems.size()); 1313 1314 List<BubbleTextView> itemsOnCurrentPage = new ArrayList<>(numItemsOnCurrentPage); 1315 for (int i = startIndex; i < endIndex; ++i) { 1316 itemsOnCurrentPage.add((BubbleTextView) allItems.get(i)); 1317 } 1318 return itemsOnCurrentPage; 1319 } 1320 1321 public void onFocusChange(View v, boolean hasFocus) { 1322 if (v == mFolderName) { 1323 if (hasFocus) { 1324 startEditingFolderName(); 1325 } else { 1326 mFolderName.dispatchBackKey(); 1327 } 1328 } 1329 } 1330 1331 @Override 1332 public void getHitRectRelativeToDragLayer(Rect outRect) { 1333 getHitRect(outRect); 1334 outRect.left -= mScrollAreaOffset; 1335 outRect.right += mScrollAreaOffset; 1336 } 1337 1338 @Override 1339 public void fillInLogContainerData(View v, ItemInfo info, Target target, Target targetParent) { 1340 target.gridX = info.cellX; 1341 target.gridY = info.cellY; 1342 target.pageIndex = mContent.getCurrentPage(); 1343 targetParent.containerType = ContainerType.FOLDER; 1344 } 1345 1346 private class OnScrollHintListener implements OnAlarmListener { 1347 1348 private final DragObject mDragObject; 1349 1350 OnScrollHintListener(DragObject object) { 1351 mDragObject = object; 1352 } 1353 1354 /** 1355 * Scroll hint has been shown long enough. Now scroll to appropriate page. 1356 */ 1357 @Override 1358 public void onAlarm(Alarm alarm) { 1359 if (mCurrentScrollDir == SCROLL_LEFT) { 1360 mContent.scrollLeft(); 1361 mScrollHintDir = SCROLL_NONE; 1362 } else if (mCurrentScrollDir == SCROLL_RIGHT) { 1363 mContent.scrollRight(); 1364 mScrollHintDir = SCROLL_NONE; 1365 } else { 1366 // This should not happen 1367 return; 1368 } 1369 mCurrentScrollDir = SCROLL_NONE; 1370 1371 // Pause drag event until the scrolling is finished 1372 mScrollPauseAlarm.setOnAlarmListener(new OnScrollFinishedListener(mDragObject)); 1373 mScrollPauseAlarm.setAlarm(RESCROLL_DELAY); 1374 } 1375 } 1376 1377 private class OnScrollFinishedListener implements OnAlarmListener { 1378 1379 private final DragObject mDragObject; 1380 1381 OnScrollFinishedListener(DragObject object) { 1382 mDragObject = object; 1383 } 1384 1385 /** 1386 * Page scroll is complete. 1387 */ 1388 @Override 1389 public void onAlarm(Alarm alarm) { 1390 // Reorder immediately on page change. 1391 onDragOver(mDragObject); 1392 } 1393 } 1394 1395 // Compares item position based on rank and position giving priority to the rank. 1396 public static final Comparator<ItemInfo> ITEM_POS_COMPARATOR = new Comparator<ItemInfo>() { 1397 1398 @Override 1399 public int compare(ItemInfo lhs, ItemInfo rhs) { 1400 if (lhs.rank != rhs.rank) { 1401 return lhs.rank - rhs.rank; 1402 } else if (lhs.cellY != rhs.cellY) { 1403 return lhs.cellY - rhs.cellY; 1404 } else { 1405 return lhs.cellX - rhs.cellX; 1406 } 1407 } 1408 }; 1409 1410 /** 1411 * Temporary resource held while we don't want to handle info changes 1412 */ 1413 private class SuppressInfoChanges implements AutoCloseable { 1414 1415 SuppressInfoChanges() { 1416 mInfo.removeListener(Folder.this); 1417 } 1418 1419 @Override 1420 public void close() { 1421 mInfo.addListener(Folder.this); 1422 updateTextViewFocus(); 1423 } 1424 } 1425 1426 /** 1427 * Returns a folder which is already open or null 1428 */ 1429 public static Folder getOpen(Launcher launcher) { 1430 return getOpenView(launcher, TYPE_FOLDER); 1431 } 1432 1433 @Override 1434 public void logActionCommand(int command) { 1435 mLauncher.getUserEventDispatcher().logActionCommand( 1436 command, getFolderIcon(), ContainerType.FOLDER); 1437 } 1438 1439 @Override 1440 public boolean onBackPressed() { 1441 if (isEditingName()) { 1442 mFolderName.dispatchBackKey(); 1443 } else { 1444 super.onBackPressed(); 1445 } 1446 return true; 1447 } 1448 1449 @Override 1450 public boolean onControllerInterceptTouchEvent(MotionEvent ev) { 1451 if (ev.getAction() == MotionEvent.ACTION_DOWN) { 1452 DragLayer dl = mLauncher.getDragLayer(); 1453 1454 if (isEditingName()) { 1455 if (!dl.isEventOverView(mFolderName, ev)) { 1456 mFolderName.dispatchBackKey(); 1457 return true; 1458 } 1459 return false; 1460 } else if (!dl.isEventOverView(this, ev)) { 1461 if (mLauncher.getAccessibilityDelegate().isInAccessibleDrag()) { 1462 // Do not close the container if in drag and drop. 1463 if (!dl.isEventOverView(mLauncher.getDropTargetBar(), ev)) { 1464 return true; 1465 } 1466 } else { 1467 mLauncher.getUserEventDispatcher().logActionTapOutside( 1468 LoggerUtils.newContainerTarget(ContainerType.FOLDER)); 1469 close(true); 1470 return true; 1471 } 1472 } 1473 } 1474 return false; 1475 } 1476 } 1477
