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.appwidget.AppWidgetHostView; 28 import android.content.Context; 29 import android.content.res.Resources; 30 import android.graphics.Canvas; 31 import android.graphics.Path; 32 import android.graphics.Rect; 33 import android.text.InputType; 34 import android.text.Selection; 35 import android.util.AttributeSet; 36 import android.util.Log; 37 import android.util.Pair; 38 import android.view.FocusFinder; 39 import android.view.KeyEvent; 40 import android.view.MotionEvent; 41 import android.view.View; 42 import android.view.ViewDebug; 43 import android.view.accessibility.AccessibilityEvent; 44 import android.view.animation.AnimationUtils; 45 import android.view.inputmethod.EditorInfo; 46 import android.widget.TextView; 47 48 import com.android.launcher3.AbstractFloatingView; 49 import com.android.launcher3.Alarm; 50 import com.android.launcher3.AppInfo; 51 import com.android.launcher3.BubbleTextView; 52 import com.android.launcher3.CellLayout; 53 import com.android.launcher3.DeviceProfile; 54 import com.android.launcher3.DragSource; 55 import com.android.launcher3.DropTarget; 56 import com.android.launcher3.ExtendedEditText; 57 import com.android.launcher3.FolderInfo; 58 import com.android.launcher3.FolderInfo.FolderListener; 59 import com.android.launcher3.ItemInfo; 60 import com.android.launcher3.Launcher; 61 import com.android.launcher3.LauncherSettings; 62 import com.android.launcher3.OnAlarmListener; 63 import com.android.launcher3.PagedView; 64 import com.android.launcher3.R; 65 import com.android.launcher3.ShortcutAndWidgetContainer; 66 import com.android.launcher3.Workspace; 67 import com.android.launcher3.Workspace.ItemOperator; 68 import com.android.launcher3.WorkspaceItemInfo; 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.views.ClipPathView; 81 import com.android.launcher3.widget.PendingAddShortcutInfo; 82 83 import java.util.ArrayList; 84 import java.util.Collections; 85 import java.util.Comparator; 86 import java.util.List; 87 88 /** 89 * Represents a set of icons chosen by the user or generated by the system. 90 */ 91 public class Folder extends AbstractFloatingView implements ClipPathView, DragSource, 92 View.OnLongClickListener, DropTarget, FolderListener, TextView.OnEditorActionListener, 93 View.OnFocusChangeListener, DragListener, ExtendedEditText.OnBackKeyListener { 94 private static final String TAG = "Launcher.Folder"; 95 96 /** 97 * We avoid measuring {@link #mContent} with a 0 width or height, as this 98 * results in CellLayout being measured as UNSPECIFIED, which it does not support. 99 */ 100 private static final int MIN_CONTENT_DIMEN = 5; 101 102 static final int STATE_NONE = -1; 103 static final int STATE_SMALL = 0; 104 static final int STATE_ANIMATING = 1; 105 static final int STATE_OPEN = 2; 106 107 /** 108 * Time for which the scroll hint is shown before automatically changing page. 109 */ 110 public static final int SCROLL_HINT_DURATION = 500; 111 public static final int RESCROLL_DELAY = PagedView.PAGE_SNAP_ANIMATION_DURATION + 150; 112 113 public static final int SCROLL_NONE = -1; 114 public static final int SCROLL_LEFT = 0; 115 public static final int SCROLL_RIGHT = 1; 116 117 /** 118 * Fraction of icon width which behave as scroll region. 119 */ 120 private static final float ICON_OVERSCROLL_WIDTH_FACTOR = 0.45f; 121 122 private static final int FOLDER_NAME_ANIMATION_DURATION = 633; 123 124 private static final int REORDER_DELAY = 250; 125 private static final int ON_EXIT_CLOSE_DELAY = 400; 126 private static final Rect sTempRect = new Rect(); 127 private static final int MIN_FOLDERS_FOR_HARDWARE_OPTIMIZATION = 10; 128 129 private static String sDefaultFolderName; 130 private static String sHintText; 131 132 private final Alarm mReorderAlarm = new Alarm(); 133 private final Alarm mOnExitAlarm = new Alarm(); 134 private final Alarm mOnScrollHintAlarm = new Alarm(); 135 @Thunk final Alarm mScrollPauseAlarm = new Alarm(); 136 137 @Thunk final ArrayList<View> mItemsInReadingOrder = new ArrayList<View>(); 138 139 private AnimatorSet mCurrentAnimator; 140 141 protected final Launcher mLauncher; 142 protected DragController mDragController; 143 public FolderInfo mInfo; 144 145 @Thunk FolderIcon mFolderIcon; 146 147 @Thunk FolderPagedView mContent; 148 public ExtendedEditText mFolderName; 149 private PageIndicatorDots mPageIndicator; 150 151 private View mFooter; 152 private int mFooterHeight; 153 154 // Cell ranks used for drag and drop 155 @Thunk int mTargetRank, mPrevTargetRank, mEmptyCellRank; 156 157 private Path mClipPath; 158 159 @ViewDebug.ExportedProperty(category = "launcher", 160 mapping = { 161 @ViewDebug.IntToString(from = STATE_NONE, to = "STATE_NONE"), 162 @ViewDebug.IntToString(from = STATE_SMALL, to = "STATE_SMALL"), 163 @ViewDebug.IntToString(from = STATE_ANIMATING, to = "STATE_ANIMATING"), 164 @ViewDebug.IntToString(from = STATE_OPEN, to = "STATE_OPEN"), 165 }) 166 @Thunk int mState = STATE_NONE; 167 @ViewDebug.ExportedProperty(category = "launcher") 168 private boolean mRearrangeOnClose = false; 169 boolean mItemsInvalidated = false; 170 private View mCurrentDragView; 171 private boolean mIsExternalDrag; 172 private boolean mDragInProgress = false; 173 private boolean mDeleteFolderOnDropCompleted = false; 174 private boolean mSuppressFolderDeletion = false; 175 private boolean mItemAddedBackToSelfViaIcon = false; 176 @Thunk float mFolderIconPivotX; 177 @Thunk float mFolderIconPivotY; 178 private boolean mIsEditingName = false; 179 180 @ViewDebug.ExportedProperty(category = "launcher") 181 private boolean mDestroyed; 182 183 // Folder scrolling 184 private int mScrollAreaOffset; 185 186 @Thunk int mScrollHintDir = SCROLL_NONE; 187 @Thunk int mCurrentScrollDir = SCROLL_NONE; 188 189 /** 190 * Used to inflate the Workspace from XML. 191 * 192 * @param context The application's context. 193 * @param attrs The attributes set containing the Workspace's customization values. 194 */ Folder(Context context, AttributeSet attrs)195 public Folder(Context context, AttributeSet attrs) { 196 super(context, attrs); 197 setAlwaysDrawnWithCacheEnabled(false); 198 199 setLocaleDependentFields(getResources(), false /* force */); 200 201 mLauncher = Launcher.getLauncher(context); 202 // We need this view to be focusable in touch mode so that when text editing of the folder 203 // name is complete, we have something to focus on, thus hiding the cursor and giving 204 // reliable behavior when clicking the text field (since it will always gain focus on click). 205 setFocusableInTouchMode(true); 206 } 207 208 @Override onFinishInflate()209 protected void onFinishInflate() { 210 super.onFinishInflate(); 211 mContent = findViewById(R.id.folder_content); 212 mContent.setFolder(this); 213 214 mPageIndicator = findViewById(R.id.folder_page_indicator); 215 mFolderName = findViewById(R.id.folder_name); 216 mFolderName.setOnBackKeyListener(this); 217 mFolderName.setOnFocusChangeListener(this); 218 mFolderName.setOnEditorActionListener(this); 219 mFolderName.setSelectAllOnFocus(true); 220 mFolderName.setInputType(mFolderName.getInputType() 221 & ~InputType.TYPE_TEXT_FLAG_AUTO_CORRECT 222 & ~InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS 223 | InputType.TYPE_TEXT_FLAG_CAP_WORDS); 224 mFolderName.forceDisableSuggestions(true); 225 226 mFooter = findViewById(R.id.folder_footer); 227 228 // We find out how tall footer wants to be (it is set to wrap_content), so that 229 // we can allocate the appropriate amount of space for it. 230 int measureSpec = MeasureSpec.UNSPECIFIED; 231 mFooter.measure(measureSpec, measureSpec); 232 mFooterHeight = mFooter.getMeasuredHeight(); 233 } 234 onLongClick(View v)235 public boolean onLongClick(View v) { 236 // Return if global dragging is not enabled 237 if (!mLauncher.isDraggingEnabled()) return true; 238 return startDrag(v, new DragOptions()); 239 } 240 startDrag(View v, DragOptions options)241 public boolean startDrag(View v, DragOptions options) { 242 Object tag = v.getTag(); 243 if (tag instanceof WorkspaceItemInfo) { 244 WorkspaceItemInfo item = (WorkspaceItemInfo) tag; 245 246 mEmptyCellRank = item.rank; 247 mCurrentDragView = v; 248 249 mDragController.addDragListener(this); 250 if (options.isAccessibleDrag) { 251 mDragController.addDragListener(new AccessibleDragListenerAdapter( 252 mContent, CellLayout.FOLDER_ACCESSIBILITY_DRAG) { 253 254 @Override 255 protected void enableAccessibleDrag(boolean enable) { 256 super.enableAccessibleDrag(enable); 257 mFooter.setImportantForAccessibility(enable 258 ? IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS 259 : IMPORTANT_FOR_ACCESSIBILITY_AUTO); 260 } 261 }); 262 } 263 264 mLauncher.getWorkspace().beginDragShared(v, this, options); 265 } 266 return true; 267 } 268 269 @Override onDragStart(DropTarget.DragObject dragObject, DragOptions options)270 public void onDragStart(DropTarget.DragObject dragObject, DragOptions options) { 271 if (dragObject.dragSource != this) { 272 return; 273 } 274 275 mContent.removeItem(mCurrentDragView); 276 if (dragObject.dragInfo instanceof WorkspaceItemInfo) { 277 mItemsInvalidated = true; 278 279 // We do not want to get events for the item being removed, as they will get handled 280 // when the drop completes 281 try (SuppressInfoChanges s = new SuppressInfoChanges()) { 282 mInfo.remove((WorkspaceItemInfo) dragObject.dragInfo, true); 283 } 284 } 285 mDragInProgress = true; 286 mItemAddedBackToSelfViaIcon = false; 287 } 288 289 @Override onDragEnd()290 public void onDragEnd() { 291 if (mIsExternalDrag && mDragInProgress) { 292 completeDragExit(); 293 } 294 mDragInProgress = false; 295 mDragController.removeDragListener(this); 296 } 297 isEditingName()298 public boolean isEditingName() { 299 return mIsEditingName; 300 } 301 startEditingFolderName()302 public void startEditingFolderName() { 303 post(new Runnable() { 304 @Override 305 public void run() { 306 mFolderName.setHint(""); 307 mIsEditingName = true; 308 } 309 }); 310 } 311 312 313 @Override onBackKey()314 public boolean onBackKey() { 315 // Convert to a string here to ensure that no other state associated with the text field 316 // gets saved. 317 String newTitle = mFolderName.getText().toString(); 318 mInfo.setTitle(newTitle); 319 mLauncher.getModelWriter().updateItemInDatabase(mInfo); 320 321 mFolderName.setHint(sDefaultFolderName.contentEquals(newTitle) ? sHintText : null); 322 323 sendCustomAccessibilityEvent( 324 this, AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED, 325 getContext().getString(R.string.folder_renamed, newTitle)); 326 327 // This ensures that focus is gained every time the field is clicked, which selects all 328 // the text and brings up the soft keyboard if necessary. 329 mFolderName.clearFocus(); 330 331 Selection.setSelection(mFolderName.getText(), 0, 0); 332 mIsEditingName = false; 333 return true; 334 } 335 onEditorAction(TextView v, int actionId, KeyEvent event)336 public boolean onEditorAction(TextView v, int actionId, KeyEvent event) { 337 if (actionId == EditorInfo.IME_ACTION_DONE) { 338 mFolderName.dispatchBackKey(); 339 return true; 340 } 341 return false; 342 } 343 getFolderIcon()344 public FolderIcon getFolderIcon() { 345 return mFolderIcon; 346 } 347 setDragController(DragController dragController)348 public void setDragController(DragController dragController) { 349 mDragController = dragController; 350 } 351 setFolderIcon(FolderIcon icon)352 public void setFolderIcon(FolderIcon icon) { 353 mFolderIcon = icon; 354 } 355 356 @Override onAttachedToWindow()357 protected void onAttachedToWindow() { 358 // requestFocus() causes the focus onto the folder itself, which doesn't cause visual 359 // effect but the next arrow key can start the keyboard focus inside of the folder, not 360 // the folder itself. 361 requestFocus(); 362 super.onAttachedToWindow(); 363 } 364 365 @Override dispatchPopulateAccessibilityEvent(AccessibilityEvent event)366 public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) { 367 // When the folder gets focus, we don't want to announce the list of items. 368 return true; 369 } 370 371 @Override focusSearch(int direction)372 public View focusSearch(int direction) { 373 // When the folder is focused, further focus search should be within the folder contents. 374 return FocusFinder.getInstance().findNextFocus(this, null, direction); 375 } 376 377 /** 378 * @return the FolderInfo object associated with this folder 379 */ getInfo()380 public FolderInfo getInfo() { 381 return mInfo; 382 } 383 bind(FolderInfo info)384 void bind(FolderInfo info) { 385 mInfo = info; 386 ArrayList<WorkspaceItemInfo> children = info.contents; 387 Collections.sort(children, ITEM_POS_COMPARATOR); 388 mContent.bindItems(children); 389 390 DragLayer.LayoutParams lp = (DragLayer.LayoutParams) getLayoutParams(); 391 if (lp == null) { 392 lp = new DragLayer.LayoutParams(0, 0); 393 lp.customPosition = true; 394 setLayoutParams(lp); 395 } 396 centerAboutIcon(); 397 398 mItemsInvalidated = true; 399 updateTextViewFocus(); 400 mInfo.addListener(this); 401 402 if (!sDefaultFolderName.contentEquals(mInfo.title)) { 403 mFolderName.setText(mInfo.title); 404 mFolderName.setHint(null); 405 } else { 406 mFolderName.setText(""); 407 mFolderName.setHint(sHintText); 408 } 409 410 // In case any children didn't come across during loading, clean up the folder accordingly 411 mFolderIcon.post(new Runnable() { 412 public void run() { 413 if (getItemCount() <= 1) { 414 replaceFolderWithFinalItem(); 415 } 416 } 417 }); 418 } 419 420 /** 421 * Creates a new UserFolder, inflated from R.layout.user_folder. 422 * 423 * @param launcher The main activity. 424 * 425 * @return A new UserFolder. 426 */ 427 @SuppressLint("InflateParams") fromXml(Launcher launcher)428 static Folder fromXml(Launcher launcher) { 429 return (Folder) launcher.getLayoutInflater() 430 .inflate(R.layout.user_folder_icon_normalized, null); 431 } 432 startAnimation(final AnimatorSet a)433 private void startAnimation(final AnimatorSet a) { 434 if (mCurrentAnimator != null && mCurrentAnimator.isRunning()) { 435 mCurrentAnimator.cancel(); 436 } 437 final Workspace workspace = mLauncher.getWorkspace(); 438 final CellLayout currentCellLayout = 439 (CellLayout) workspace.getChildAt(workspace.getCurrentPage()); 440 final boolean useHardware = shouldUseHardwareLayerForAnimation(currentCellLayout); 441 final boolean wasHardwareAccelerated = currentCellLayout.isHardwareLayerEnabled(); 442 443 a.addListener(new AnimatorListenerAdapter() { 444 @Override 445 public void onAnimationStart(Animator animation) { 446 if (useHardware) { 447 currentCellLayout.enableHardwareLayer(true); 448 } 449 mState = STATE_ANIMATING; 450 mCurrentAnimator = a; 451 } 452 453 @Override 454 public void onAnimationEnd(Animator animation) { 455 if (useHardware) { 456 currentCellLayout.enableHardwareLayer(wasHardwareAccelerated); 457 } 458 mCurrentAnimator = null; 459 } 460 }); 461 a.start(); 462 } 463 shouldUseHardwareLayerForAnimation(CellLayout currentCellLayout)464 private boolean shouldUseHardwareLayerForAnimation(CellLayout currentCellLayout) { 465 int folderCount = 0; 466 final ShortcutAndWidgetContainer container = currentCellLayout.getShortcutsAndWidgets(); 467 for (int i = container.getChildCount() - 1; i >= 0; --i) { 468 final View child = container.getChildAt(i); 469 if (child instanceof AppWidgetHostView) return false; 470 if (child instanceof FolderIcon) ++folderCount; 471 } 472 return folderCount >= MIN_FOLDERS_FOR_HARDWARE_OPTIMIZATION; 473 } 474 475 /** 476 * Opens the user folder described by the specified tag. The opening of the folder 477 * is animated relative to the specified View. If the View is null, no animation 478 * is played. 479 */ animateOpen()480 public void animateOpen() { 481 Folder openFolder = getOpen(mLauncher); 482 if (openFolder != null && openFolder != this) { 483 // Close any open folder before opening a folder. 484 openFolder.close(true); 485 } 486 487 mIsOpen = true; 488 489 DragLayer dragLayer = mLauncher.getDragLayer(); 490 // Just verify that the folder hasn't already been added to the DragLayer. 491 // There was a one-off crash where the folder had a parent already. 492 if (getParent() == null) { 493 dragLayer.addView(this); 494 mDragController.addDropTarget(this); 495 } else { 496 if (FeatureFlags.IS_DOGFOOD_BUILD) { 497 Log.e(TAG, "Opening folder (" + this + ") which already has a parent:" 498 + getParent()); 499 } 500 } 501 502 mContent.completePendingPageChanges(); 503 if (!mDragInProgress) { 504 // Open on the first page. 505 mContent.snapToPageImmediately(0); 506 } 507 508 // This is set to true in close(), but isn't reset to false until onDropCompleted(). This 509 // leads to an inconsistent state if you drag out of the folder and drag back in without 510 // dropping. One resulting issue is that replaceFolderWithFinalItem() can be called twice. 511 mDeleteFolderOnDropCompleted = false; 512 513 centerAboutIcon(); 514 515 AnimatorSet anim = new FolderAnimationManager(this, true /* isOpening */).getAnimator(); 516 anim.addListener(new AnimatorListenerAdapter() { 517 @Override 518 public void onAnimationStart(Animator animation) { 519 mFolderIcon.setBackgroundVisible(false); 520 mFolderIcon.drawLeaveBehindIfExists(); 521 } 522 @Override 523 public void onAnimationEnd(Animator animation) { 524 mState = STATE_OPEN; 525 announceAccessibilityChanges(); 526 527 mLauncher.getUserEventDispatcher().resetElapsedContainerMillis("folder opened"); 528 mContent.setFocusOnFirstChild(); 529 } 530 }); 531 532 // Footer animation 533 if (mContent.getPageCount() > 1 && !mInfo.hasOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION)) { 534 int footerWidth = mContent.getDesiredWidth() 535 - mFooter.getPaddingLeft() - mFooter.getPaddingRight(); 536 537 float textWidth = mFolderName.getPaint().measureText(mFolderName.getText().toString()); 538 float translation = (footerWidth - textWidth) / 2; 539 mFolderName.setTranslationX(mContent.mIsRtl ? -translation : translation); 540 mPageIndicator.prepareEntryAnimation(); 541 542 // Do not update the flag if we are in drag mode. The flag will be updated, when we 543 // actually drop the icon. 544 final boolean updateAnimationFlag = !mDragInProgress; 545 anim.addListener(new AnimatorListenerAdapter() { 546 547 @SuppressLint("InlinedApi") 548 @Override 549 public void onAnimationEnd(Animator animation) { 550 mFolderName.animate().setDuration(FOLDER_NAME_ANIMATION_DURATION) 551 .translationX(0) 552 .setInterpolator(AnimationUtils.loadInterpolator( 553 mLauncher, android.R.interpolator.fast_out_slow_in)); 554 mPageIndicator.playEntryAnimation(); 555 556 if (updateAnimationFlag) { 557 mInfo.setOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION, true, 558 mLauncher.getModelWriter()); 559 } 560 } 561 }); 562 } else { 563 mFolderName.setTranslationX(0); 564 } 565 566 mPageIndicator.stopAllAnimations(); 567 startAnimation(anim); 568 569 // Make sure the folder picks up the last drag move even if the finger doesn't move. 570 if (mDragController.isDragging()) { 571 mDragController.forceTouchMove(); 572 } 573 574 mContent.verifyVisibleHighResIcons(mContent.getNextPage()); 575 } 576 beginExternalDrag()577 public void beginExternalDrag() { 578 mEmptyCellRank = mContent.allocateRankForNewItem(); 579 mIsExternalDrag = true; 580 mDragInProgress = true; 581 582 // Since this folder opened by another controller, it might not get onDrop or 583 // onDropComplete. Perform cleanup once drag-n-drop ends. 584 mDragController.addDragListener(this); 585 } 586 587 @Override isOfType(int type)588 protected boolean isOfType(int type) { 589 return (type & TYPE_FOLDER) != 0; 590 } 591 592 @Override handleClose(boolean animate)593 protected void handleClose(boolean animate) { 594 mIsOpen = false; 595 596 if (!animate && mCurrentAnimator != null && mCurrentAnimator.isRunning()) { 597 mCurrentAnimator.cancel(); 598 } 599 600 if (isEditingName()) { 601 mFolderName.dispatchBackKey(); 602 } 603 604 if (mFolderIcon != null) { 605 mFolderIcon.clearLeaveBehindIfExists(); 606 } 607 608 if (animate) { 609 animateClosed(); 610 } else { 611 closeComplete(false); 612 post(this::announceAccessibilityChanges); 613 } 614 615 // Notify the accessibility manager that this folder "window" has disappeared and no 616 // longer occludes the workspace items 617 mLauncher.getDragLayer().sendAccessibilityEvent( 618 AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 619 } 620 animateClosed()621 private void animateClosed() { 622 AnimatorSet a = new FolderAnimationManager(this, false /* isOpening */).getAnimator(); 623 a.addListener(new AnimatorListenerAdapter() { 624 @Override 625 public void onAnimationEnd(Animator animation) { 626 closeComplete(true); 627 announceAccessibilityChanges(); 628 } 629 }); 630 startAnimation(a); 631 } 632 633 @Override getAccessibilityTarget()634 protected Pair<View, String> getAccessibilityTarget() { 635 return Pair.create(mContent, mIsOpen ? mContent.getAccessibilityDescription() 636 : getContext().getString(R.string.folder_closed)); 637 } 638 closeComplete(boolean wasAnimated)639 private void closeComplete(boolean wasAnimated) { 640 // TODO: Clear all active animations. 641 DragLayer parent = (DragLayer) getParent(); 642 if (parent != null) { 643 parent.removeView(this); 644 } 645 mDragController.removeDropTarget(this); 646 clearFocus(); 647 if (mFolderIcon != null) { 648 mFolderIcon.setVisibility(View.VISIBLE); 649 mFolderIcon.setBackgroundVisible(true); 650 mFolderIcon.mFolderName.setTextVisibility(true); 651 if (wasAnimated) { 652 mFolderIcon.animateBgShadowAndStroke(); 653 mFolderIcon.onFolderClose(mContent.getCurrentPage()); 654 if (mFolderIcon.hasDot()) { 655 mFolderIcon.animateDotScale(0f, 1f); 656 } 657 mFolderIcon.requestFocus(); 658 } 659 } 660 661 if (mRearrangeOnClose) { 662 rearrangeChildren(); 663 mRearrangeOnClose = false; 664 } 665 if (getItemCount() <= 1) { 666 if (!mDragInProgress && !mSuppressFolderDeletion) { 667 replaceFolderWithFinalItem(); 668 } else if (mDragInProgress) { 669 mDeleteFolderOnDropCompleted = true; 670 } 671 } 672 mSuppressFolderDeletion = false; 673 clearDragInfo(); 674 mState = STATE_SMALL; 675 mContent.setCurrentPage(0); 676 } 677 678 @Override acceptDrop(DragObject d)679 public boolean acceptDrop(DragObject d) { 680 final ItemInfo item = d.dragInfo; 681 final int itemType = item.itemType; 682 return ((itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || 683 itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT || 684 itemType == LauncherSettings.Favorites.ITEM_TYPE_DEEP_SHORTCUT)); 685 } 686 onDragEnter(DragObject d)687 public void onDragEnter(DragObject d) { 688 mPrevTargetRank = -1; 689 mOnExitAlarm.cancelAlarm(); 690 // Get the area offset such that the folder only closes if half the drag icon width 691 // is outside the folder area 692 mScrollAreaOffset = d.dragView.getDragRegionWidth() / 2 - d.xOffset; 693 } 694 695 OnAlarmListener mReorderAlarmListener = new OnAlarmListener() { 696 public void onAlarm(Alarm alarm) { 697 mContent.realTimeReorder(mEmptyCellRank, mTargetRank); 698 mEmptyCellRank = mTargetRank; 699 } 700 }; 701 isLayoutRtl()702 public boolean isLayoutRtl() { 703 return (getLayoutDirection() == LAYOUT_DIRECTION_RTL); 704 } 705 getTargetRank(DragObject d, float[] recycle)706 private int getTargetRank(DragObject d, float[] recycle) { 707 recycle = d.getVisualCenter(recycle); 708 return mContent.findNearestArea( 709 (int) recycle[0] - getPaddingLeft(), (int) recycle[1] - getPaddingTop()); 710 } 711 712 @Override onDragOver(DragObject d)713 public void onDragOver(DragObject d) { 714 if (mScrollPauseAlarm.alarmPending()) { 715 return; 716 } 717 final float[] r = new float[2]; 718 mTargetRank = getTargetRank(d, r); 719 720 if (mTargetRank != mPrevTargetRank) { 721 mReorderAlarm.cancelAlarm(); 722 mReorderAlarm.setOnAlarmListener(mReorderAlarmListener); 723 mReorderAlarm.setAlarm(REORDER_DELAY); 724 mPrevTargetRank = mTargetRank; 725 726 if (d.stateAnnouncer != null) { 727 d.stateAnnouncer.announce(getContext().getString(R.string.move_to_position, 728 mTargetRank + 1)); 729 } 730 } 731 732 float x = r[0]; 733 int currentPage = mContent.getNextPage(); 734 735 float cellOverlap = mContent.getCurrentCellLayout().getCellWidth() 736 * ICON_OVERSCROLL_WIDTH_FACTOR; 737 boolean isOutsideLeftEdge = x < cellOverlap; 738 boolean isOutsideRightEdge = x > (getWidth() - cellOverlap); 739 740 if (currentPage > 0 && (mContent.mIsRtl ? isOutsideRightEdge : isOutsideLeftEdge)) { 741 showScrollHint(SCROLL_LEFT, d); 742 } else if (currentPage < (mContent.getPageCount() - 1) 743 && (mContent.mIsRtl ? isOutsideLeftEdge : isOutsideRightEdge)) { 744 showScrollHint(SCROLL_RIGHT, d); 745 } else { 746 mOnScrollHintAlarm.cancelAlarm(); 747 if (mScrollHintDir != SCROLL_NONE) { 748 mContent.clearScrollHint(); 749 mScrollHintDir = SCROLL_NONE; 750 } 751 } 752 } 753 showScrollHint(int direction, DragObject d)754 private void showScrollHint(int direction, DragObject d) { 755 // Show scroll hint on the right 756 if (mScrollHintDir != direction) { 757 mContent.showScrollHint(direction); 758 mScrollHintDir = direction; 759 } 760 761 // Set alarm for when the hint is complete 762 if (!mOnScrollHintAlarm.alarmPending() || mCurrentScrollDir != direction) { 763 mCurrentScrollDir = direction; 764 mOnScrollHintAlarm.cancelAlarm(); 765 mOnScrollHintAlarm.setOnAlarmListener(new OnScrollHintListener(d)); 766 mOnScrollHintAlarm.setAlarm(SCROLL_HINT_DURATION); 767 768 mReorderAlarm.cancelAlarm(); 769 mTargetRank = mEmptyCellRank; 770 } 771 } 772 773 OnAlarmListener mOnExitAlarmListener = new OnAlarmListener() { 774 public void onAlarm(Alarm alarm) { 775 completeDragExit(); 776 } 777 }; 778 completeDragExit()779 public void completeDragExit() { 780 if (mIsOpen) { 781 close(true); 782 mRearrangeOnClose = true; 783 } else if (mState == STATE_ANIMATING) { 784 mRearrangeOnClose = true; 785 } else { 786 rearrangeChildren(); 787 clearDragInfo(); 788 } 789 } 790 clearDragInfo()791 private void clearDragInfo() { 792 mCurrentDragView = null; 793 mIsExternalDrag = false; 794 } 795 onDragExit(DragObject d)796 public void onDragExit(DragObject d) { 797 // We only close the folder if this is a true drag exit, ie. not because 798 // a drop has occurred above the folder. 799 if (!d.dragComplete) { 800 mOnExitAlarm.setOnAlarmListener(mOnExitAlarmListener); 801 mOnExitAlarm.setAlarm(ON_EXIT_CLOSE_DELAY); 802 } 803 mReorderAlarm.cancelAlarm(); 804 805 mOnScrollHintAlarm.cancelAlarm(); 806 mScrollPauseAlarm.cancelAlarm(); 807 if (mScrollHintDir != SCROLL_NONE) { 808 mContent.clearScrollHint(); 809 mScrollHintDir = SCROLL_NONE; 810 } 811 } 812 813 /** 814 * When performing an accessibility drop, onDrop is sent immediately after onDragEnter. So we 815 * need to complete all transient states based on timers. 816 */ 817 @Override prepareAccessibilityDrop()818 public void prepareAccessibilityDrop() { 819 if (mReorderAlarm.alarmPending()) { 820 mReorderAlarm.cancelAlarm(); 821 mReorderAlarmListener.onAlarm(mReorderAlarm); 822 } 823 } 824 onDropCompleted(final View target, final DragObject d, final boolean success)825 public void onDropCompleted(final View target, final DragObject d, 826 final boolean success) { 827 828 if (success) { 829 if (mDeleteFolderOnDropCompleted && !mItemAddedBackToSelfViaIcon && target != this) { 830 replaceFolderWithFinalItem(); 831 } 832 } else { 833 // The drag failed, we need to return the item to the folder 834 WorkspaceItemInfo info = (WorkspaceItemInfo) d.dragInfo; 835 View icon = (mCurrentDragView != null && mCurrentDragView.getTag() == info) 836 ? mCurrentDragView : mContent.createNewView(info); 837 ArrayList<View> views = getItemsInReadingOrder(); 838 views.add(info.rank, icon); 839 mContent.arrangeChildren(views, views.size()); 840 mItemsInvalidated = true; 841 842 try (SuppressInfoChanges s = new SuppressInfoChanges()) { 843 mFolderIcon.onDrop(d, true /* itemReturnedOnFailedDrop */); 844 } 845 } 846 847 if (target != this) { 848 if (mOnExitAlarm.alarmPending()) { 849 mOnExitAlarm.cancelAlarm(); 850 if (!success) { 851 mSuppressFolderDeletion = true; 852 } 853 mScrollPauseAlarm.cancelAlarm(); 854 completeDragExit(); 855 } 856 } 857 858 mDeleteFolderOnDropCompleted = false; 859 mDragInProgress = false; 860 mItemAddedBackToSelfViaIcon = false; 861 mCurrentDragView = null; 862 863 // Reordering may have occured, and we need to save the new item locations. We do this once 864 // at the end to prevent unnecessary database operations. 865 updateItemLocationsInDatabaseBatch(); 866 867 // Use the item count to check for multi-page as the folder UI may not have 868 // been refreshed yet. 869 if (getItemCount() <= mContent.itemsPerPage()) { 870 // Show the animation, next time something is added to the folder. 871 mInfo.setOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION, false, 872 mLauncher.getModelWriter()); 873 } 874 } 875 updateItemLocationsInDatabaseBatch()876 private void updateItemLocationsInDatabaseBatch() { 877 ArrayList<View> list = getItemsInReadingOrder(); 878 ArrayList<ItemInfo> items = new ArrayList<ItemInfo>(); 879 for (int i = 0; i < list.size(); i++) { 880 View v = list.get(i); 881 ItemInfo info = (ItemInfo) v.getTag(); 882 info.rank = i; 883 items.add(info); 884 } 885 886 mLauncher.getModelWriter().moveItemsInDatabase(items, mInfo.id, 0); 887 } 888 notifyDrop()889 public void notifyDrop() { 890 if (mDragInProgress) { 891 mItemAddedBackToSelfViaIcon = true; 892 } 893 } 894 isDropEnabled()895 public boolean isDropEnabled() { 896 return mState != STATE_ANIMATING; 897 } 898 centerAboutIcon()899 private void centerAboutIcon() { 900 DeviceProfile grid = mLauncher.getDeviceProfile(); 901 902 DragLayer.LayoutParams lp = (DragLayer.LayoutParams) getLayoutParams(); 903 DragLayer parent = mLauncher.getDragLayer(); 904 int width = getFolderWidth(); 905 int height = getFolderHeight(); 906 907 parent.getDescendantRectRelativeToSelf(mFolderIcon, sTempRect); 908 int centerX = sTempRect.centerX(); 909 int centerY = sTempRect.centerY(); 910 int centeredLeft = centerX - width / 2; 911 int centeredTop = centerY - height / 2; 912 913 // We need to bound the folder to the currently visible workspace area 914 if (mLauncher.getStateManager().getState().overviewUi) { 915 parent.getDescendantRectRelativeToSelf(mLauncher.getOverviewPanel(), sTempRect); 916 } else { 917 mLauncher.getWorkspace().getPageAreaRelativeToDragLayer(sTempRect); 918 } 919 int left = Math.min(Math.max(sTempRect.left, centeredLeft), 920 sTempRect.right- width); 921 int top = Math.min(Math.max(sTempRect.top, centeredTop), 922 sTempRect.bottom - height); 923 924 int distFromEdgeOfScreen = mLauncher.getWorkspace().getPaddingLeft() + getPaddingLeft(); 925 926 if (grid.isPhone && (grid.availableWidthPx - width) < 4 * distFromEdgeOfScreen) { 927 // Center the folder if it is very close to being centered anyway, by virtue of 928 // filling the majority of the viewport. ie. remove it from the uncanny valley 929 // of centeredness. 930 left = (grid.availableWidthPx - width) / 2; 931 } else if (width >= sTempRect.width()) { 932 // If the folder doesn't fit within the bounds, center it about the desired bounds 933 left = sTempRect.left + (sTempRect.width() - width) / 2; 934 } 935 if (height >= sTempRect.height()) { 936 // Folder height is greater than page height, center on page 937 top = sTempRect.top + (sTempRect.height() - height) / 2; 938 } else { 939 // Folder height is less than page height, so bound it to the absolute open folder 940 // bounds if necessary 941 Rect folderBounds = grid.getAbsoluteOpenFolderBounds(); 942 left = Math.max(folderBounds.left, Math.min(left, folderBounds.right - width)); 943 top = Math.max(folderBounds.top, Math.min(top, folderBounds.bottom - height)); 944 } 945 946 int folderPivotX = width / 2 + (centeredLeft - left); 947 int folderPivotY = height / 2 + (centeredTop - top); 948 setPivotX(folderPivotX); 949 setPivotY(folderPivotY); 950 951 mFolderIconPivotX = (int) (mFolderIcon.getMeasuredWidth() * 952 (1.0f * folderPivotX / width)); 953 mFolderIconPivotY = (int) (mFolderIcon.getMeasuredHeight() * 954 (1.0f * folderPivotY / height)); 955 956 lp.width = width; 957 lp.height = height; 958 lp.x = left; 959 lp.y = top; 960 } 961 getPivotXForIconAnimation()962 public float getPivotXForIconAnimation() { 963 return mFolderIconPivotX; 964 } getPivotYForIconAnimation()965 public float getPivotYForIconAnimation() { 966 return mFolderIconPivotY; 967 } 968 getContentAreaHeight()969 private int getContentAreaHeight() { 970 DeviceProfile grid = mLauncher.getDeviceProfile(); 971 int maxContentAreaHeight = grid.availableHeightPx 972 - grid.getTotalWorkspacePadding().y - mFooterHeight; 973 int height = Math.min(maxContentAreaHeight, 974 mContent.getDesiredHeight()); 975 return Math.max(height, MIN_CONTENT_DIMEN); 976 } 977 getContentAreaWidth()978 private int getContentAreaWidth() { 979 return Math.max(mContent.getDesiredWidth(), MIN_CONTENT_DIMEN); 980 } 981 getFolderWidth()982 private int getFolderWidth() { 983 return getPaddingLeft() + getPaddingRight() + mContent.getDesiredWidth(); 984 } 985 getFolderHeight()986 private int getFolderHeight() { 987 return getFolderHeight(getContentAreaHeight()); 988 } 989 getFolderHeight(int contentAreaHeight)990 private int getFolderHeight(int contentAreaHeight) { 991 return getPaddingTop() + getPaddingBottom() + contentAreaHeight + mFooterHeight; 992 } 993 onMeasure(int widthMeasureSpec, int heightMeasureSpec)994 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 995 int contentWidth = getContentAreaWidth(); 996 int contentHeight = getContentAreaHeight(); 997 998 int contentAreaWidthSpec = MeasureSpec.makeMeasureSpec(contentWidth, MeasureSpec.EXACTLY); 999 int contentAreaHeightSpec = MeasureSpec.makeMeasureSpec(contentHeight, MeasureSpec.EXACTLY); 1000 1001 mContent.setFixedSize(contentWidth, contentHeight); 1002 mContent.measure(contentAreaWidthSpec, contentAreaHeightSpec); 1003 1004 if (mContent.getChildCount() > 0) { 1005 int cellIconGap = (mContent.getPageAt(0).getCellWidth() 1006 - mLauncher.getDeviceProfile().iconSizePx) / 2; 1007 mFooter.setPadding(mContent.getPaddingLeft() + cellIconGap, 1008 mFooter.getPaddingTop(), 1009 mContent.getPaddingRight() + cellIconGap, 1010 mFooter.getPaddingBottom()); 1011 } 1012 mFooter.measure(contentAreaWidthSpec, 1013 MeasureSpec.makeMeasureSpec(mFooterHeight, MeasureSpec.EXACTLY)); 1014 1015 int folderWidth = getPaddingLeft() + getPaddingRight() + contentWidth; 1016 int folderHeight = getFolderHeight(contentHeight); 1017 setMeasuredDimension(folderWidth, folderHeight); 1018 } 1019 1020 /** 1021 * Rearranges the children based on their rank. 1022 */ rearrangeChildren()1023 public void rearrangeChildren() { 1024 rearrangeChildren(-1); 1025 } 1026 1027 /** 1028 * Rearranges the children based on their rank. 1029 * @param itemCount if greater than the total children count, empty spaces are left at the end, 1030 * otherwise it is ignored. 1031 */ rearrangeChildren(int itemCount)1032 public void rearrangeChildren(int itemCount) { 1033 ArrayList<View> views = getItemsInReadingOrder(); 1034 mContent.arrangeChildren(views, Math.max(itemCount, views.size())); 1035 mItemsInvalidated = true; 1036 } 1037 getItemCount()1038 public int getItemCount() { 1039 return mContent.getItemCount(); 1040 } 1041 replaceFolderWithFinalItem()1042 @Thunk void replaceFolderWithFinalItem() { 1043 // Add the last remaining child to the workspace in place of the folder 1044 Runnable onCompleteRunnable = new Runnable() { 1045 @Override 1046 public void run() { 1047 int itemCount = mInfo.contents.size(); 1048 if (itemCount <= 1) { 1049 View newIcon = null; 1050 1051 if (itemCount == 1) { 1052 // Move the item from the folder to the workspace, in the position of the 1053 // folder 1054 CellLayout cellLayout = mLauncher.getCellLayout(mInfo.container, 1055 mInfo.screenId); 1056 WorkspaceItemInfo finalItem = mInfo.contents.remove(0); 1057 newIcon = mLauncher.createShortcut(cellLayout, finalItem); 1058 mLauncher.getModelWriter().addOrMoveItemInDatabase(finalItem, 1059 mInfo.container, mInfo.screenId, mInfo.cellX, mInfo.cellY); 1060 } 1061 1062 // Remove the folder 1063 mLauncher.removeItem(mFolderIcon, mInfo, true /* deleteFromDb */); 1064 if (mFolderIcon instanceof DropTarget) { 1065 mDragController.removeDropTarget((DropTarget) mFolderIcon); 1066 } 1067 1068 if (newIcon != null) { 1069 // We add the child after removing the folder to prevent both from existing 1070 // at the same time in the CellLayout. We need to add the new item with 1071 // addInScreenFromBind() to ensure that hotseat items are placed correctly. 1072 mLauncher.getWorkspace().addInScreenFromBind(newIcon, mInfo); 1073 1074 // Focus the newly created child 1075 newIcon.requestFocus(); 1076 } 1077 } 1078 } 1079 }; 1080 View finalChild = mContent.getLastItem(); 1081 if (finalChild != null) { 1082 mFolderIcon.performDestroyAnimation(onCompleteRunnable); 1083 } else { 1084 onCompleteRunnable.run(); 1085 } 1086 mDestroyed = true; 1087 } 1088 isDestroyed()1089 public boolean isDestroyed() { 1090 return mDestroyed; 1091 } 1092 1093 // This method keeps track of the first and last item in the folder for the purposes 1094 // of keyboard focus updateTextViewFocus()1095 public void updateTextViewFocus() { 1096 final View firstChild = mContent.getFirstItem(); 1097 final View lastChild = mContent.getLastItem(); 1098 if (firstChild != null && lastChild != null) { 1099 mFolderName.setNextFocusDownId(lastChild.getId()); 1100 mFolderName.setNextFocusRightId(lastChild.getId()); 1101 mFolderName.setNextFocusLeftId(lastChild.getId()); 1102 mFolderName.setNextFocusUpId(lastChild.getId()); 1103 // Hitting TAB from the folder name wraps around to the first item on the current 1104 // folder page, and hitting SHIFT+TAB from that item wraps back to the folder name. 1105 mFolderName.setNextFocusForwardId(firstChild.getId()); 1106 // When clicking off the folder when editing the name, this Folder gains focus. When 1107 // pressing an arrow key from that state, give the focus to the first item. 1108 this.setNextFocusDownId(firstChild.getId()); 1109 this.setNextFocusRightId(firstChild.getId()); 1110 this.setNextFocusLeftId(firstChild.getId()); 1111 this.setNextFocusUpId(firstChild.getId()); 1112 // When pressing shift+tab in the above state, give the focus to the last item. 1113 setOnKeyListener(new OnKeyListener() { 1114 @Override 1115 public boolean onKey(View v, int keyCode, KeyEvent event) { 1116 boolean isShiftPlusTab = keyCode == KeyEvent.KEYCODE_TAB && 1117 event.hasModifiers(KeyEvent.META_SHIFT_ON); 1118 if (isShiftPlusTab && Folder.this.isFocused()) { 1119 return lastChild.requestFocus(); 1120 } 1121 return false; 1122 } 1123 }); 1124 } 1125 } 1126 onDrop(DragObject d, DragOptions options)1127 public void onDrop(DragObject d, DragOptions options) { 1128 // If the icon was dropped while the page was being scrolled, we need to compute 1129 // the target location again such that the icon is placed of the final page. 1130 if (!mContent.rankOnCurrentPage(mEmptyCellRank)) { 1131 // Reorder again. 1132 mTargetRank = getTargetRank(d, null); 1133 1134 // Rearrange items immediately. 1135 mReorderAlarmListener.onAlarm(mReorderAlarm); 1136 1137 mOnScrollHintAlarm.cancelAlarm(); 1138 mScrollPauseAlarm.cancelAlarm(); 1139 } 1140 mContent.completePendingPageChanges(); 1141 1142 PendingAddShortcutInfo pasi = d.dragInfo instanceof PendingAddShortcutInfo 1143 ? (PendingAddShortcutInfo) d.dragInfo : null; 1144 WorkspaceItemInfo pasiSi = pasi != null ? pasi.activityInfo.createWorkspaceItemInfo() : null; 1145 if (pasi != null && pasiSi == null) { 1146 // There is no WorkspaceItemInfo, so we have to go through a configuration activity. 1147 pasi.container = mInfo.id; 1148 pasi.rank = mEmptyCellRank; 1149 1150 mLauncher.addPendingItem(pasi, pasi.container, pasi.screenId, null, pasi.spanX, 1151 pasi.spanY); 1152 d.deferDragViewCleanupPostAnimation = false; 1153 mRearrangeOnClose = true; 1154 } else { 1155 final WorkspaceItemInfo si; 1156 if (pasiSi != null) { 1157 si = pasiSi; 1158 } else if (d.dragInfo instanceof AppInfo) { 1159 // Came from all apps -- make a copy. 1160 si = ((AppInfo) d.dragInfo).makeWorkspaceItem(); 1161 } else { 1162 // WorkspaceItemInfo 1163 si = (WorkspaceItemInfo) d.dragInfo; 1164 } 1165 1166 View currentDragView; 1167 if (mIsExternalDrag) { 1168 currentDragView = mContent.createAndAddViewForRank(si, mEmptyCellRank); 1169 1170 // Actually move the item in the database if it was an external drag. Call this 1171 // before creating the view, so that WorkspaceItemInfo is updated appropriately. 1172 mLauncher.getModelWriter().addOrMoveItemInDatabase( 1173 si, mInfo.id, 0, si.cellX, si.cellY); 1174 1175 // We only need to update the locations if it doesn't get handled in 1176 // #onDropCompleted. 1177 if (d.dragSource != this) { 1178 updateItemLocationsInDatabaseBatch(); 1179 } 1180 mIsExternalDrag = false; 1181 } else { 1182 currentDragView = mCurrentDragView; 1183 mContent.addViewForRank(currentDragView, si, mEmptyCellRank); 1184 } 1185 1186 if (d.dragView.hasDrawn()) { 1187 // Temporarily reset the scale such that the animation target gets calculated 1188 // correctly. 1189 float scaleX = getScaleX(); 1190 float scaleY = getScaleY(); 1191 setScaleX(1.0f); 1192 setScaleY(1.0f); 1193 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, currentDragView, null); 1194 setScaleX(scaleX); 1195 setScaleY(scaleY); 1196 } else { 1197 d.deferDragViewCleanupPostAnimation = false; 1198 currentDragView.setVisibility(VISIBLE); 1199 } 1200 1201 mItemsInvalidated = true; 1202 rearrangeChildren(); 1203 1204 // Temporarily suppress the listener, as we did all the work already here. 1205 try (SuppressInfoChanges s = new SuppressInfoChanges()) { 1206 mInfo.add(si, false); 1207 } 1208 } 1209 1210 // Clear the drag info, as it is no longer being dragged. 1211 mDragInProgress = false; 1212 1213 if (mContent.getPageCount() > 1) { 1214 // The animation has already been shown while opening the folder. 1215 mInfo.setOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION, true, mLauncher.getModelWriter()); 1216 } 1217 1218 mLauncher.getStateManager().goToState(NORMAL, SPRING_LOADED_EXIT_DELAY); 1219 if (d.stateAnnouncer != null) { 1220 d.stateAnnouncer.completeAction(R.string.item_moved); 1221 } 1222 } 1223 1224 // This is used so the item doesn't immediately appear in the folder when added. In one case 1225 // we need to create the illusion that the item isn't added back to the folder yet, to 1226 // to correspond to the animation of the icon back into the folder. This is hideItem(WorkspaceItemInfo info)1227 public void hideItem(WorkspaceItemInfo info) { 1228 View v = getViewForInfo(info); 1229 v.setVisibility(INVISIBLE); 1230 } showItem(WorkspaceItemInfo info)1231 public void showItem(WorkspaceItemInfo info) { 1232 View v = getViewForInfo(info); 1233 v.setVisibility(VISIBLE); 1234 } 1235 1236 @Override onAdd(WorkspaceItemInfo item, int rank)1237 public void onAdd(WorkspaceItemInfo item, int rank) { 1238 View view = mContent.createAndAddViewForRank(item, rank); 1239 mLauncher.getModelWriter().addOrMoveItemInDatabase(item, mInfo.id, 0, item.cellX, 1240 item.cellY); 1241 1242 ArrayList<View> items = new ArrayList<>(getItemsInReadingOrder()); 1243 items.add(rank, view); 1244 mContent.arrangeChildren(items, items.size()); 1245 mItemsInvalidated = true; 1246 } 1247 onRemove(WorkspaceItemInfo item)1248 public void onRemove(WorkspaceItemInfo item) { 1249 mItemsInvalidated = true; 1250 View v = getViewForInfo(item); 1251 mContent.removeItem(v); 1252 if (mState == STATE_ANIMATING) { 1253 mRearrangeOnClose = true; 1254 } else { 1255 rearrangeChildren(); 1256 } 1257 if (getItemCount() <= 1) { 1258 if (mIsOpen) { 1259 close(true); 1260 } else { 1261 replaceFolderWithFinalItem(); 1262 } 1263 } 1264 } 1265 getViewForInfo(final WorkspaceItemInfo item)1266 private View getViewForInfo(final WorkspaceItemInfo item) { 1267 return mContent.iterateOverItems(new ItemOperator() { 1268 1269 @Override 1270 public boolean evaluate(ItemInfo info, View view) { 1271 return info == item; 1272 } 1273 }); 1274 } 1275 1276 @Override 1277 public void onItemsChanged(boolean animate) { 1278 updateTextViewFocus(); 1279 } 1280 1281 @Override 1282 public void prepareAutoUpdate() { 1283 close(false); 1284 } 1285 1286 public void onTitleChanged(CharSequence title) { 1287 } 1288 1289 public ArrayList<View> getItemsInReadingOrder() { 1290 if (mItemsInvalidated) { 1291 mItemsInReadingOrder.clear(); 1292 mContent.iterateOverItems(new ItemOperator() { 1293 1294 @Override 1295 public boolean evaluate(ItemInfo info, View view) { 1296 mItemsInReadingOrder.add(view); 1297 return false; 1298 } 1299 }); 1300 mItemsInvalidated = false; 1301 } 1302 return mItemsInReadingOrder; 1303 } 1304 1305 public List<BubbleTextView> getItemsOnPage(int page) { 1306 ArrayList<View> allItems = getItemsInReadingOrder(); 1307 int lastPage = mContent.getPageCount() - 1; 1308 int totalItemsInFolder = allItems.size(); 1309 int itemsPerPage = mContent.itemsPerPage(); 1310 int numItemsOnCurrentPage = page == lastPage 1311 ? totalItemsInFolder - (itemsPerPage * page) 1312 : itemsPerPage; 1313 1314 int startIndex = page * itemsPerPage; 1315 int endIndex = Math.min(startIndex + numItemsOnCurrentPage, allItems.size()); 1316 1317 List<BubbleTextView> itemsOnCurrentPage = new ArrayList<>(numItemsOnCurrentPage); 1318 for (int i = startIndex; i < endIndex; ++i) { 1319 itemsOnCurrentPage.add((BubbleTextView) allItems.get(i)); 1320 } 1321 return itemsOnCurrentPage; 1322 } 1323 1324 public void onFocusChange(View v, boolean hasFocus) { 1325 if (v == mFolderName) { 1326 if (hasFocus) { 1327 startEditingFolderName(); 1328 } else { 1329 mFolderName.dispatchBackKey(); 1330 } 1331 } 1332 } 1333 1334 @Override 1335 public void getHitRectRelativeToDragLayer(Rect outRect) { 1336 getHitRect(outRect); 1337 outRect.left -= mScrollAreaOffset; 1338 outRect.right += mScrollAreaOffset; 1339 } 1340 1341 @Override 1342 public void fillInLogContainerData(View v, ItemInfo info, Target target, Target targetParent) { 1343 target.gridX = info.cellX; 1344 target.gridY = info.cellY; 1345 target.pageIndex = mContent.getCurrentPage(); 1346 targetParent.containerType = ContainerType.FOLDER; 1347 } 1348 1349 private class OnScrollHintListener implements OnAlarmListener { 1350 1351 private final DragObject mDragObject; 1352 1353 OnScrollHintListener(DragObject object) { 1354 mDragObject = object; 1355 } 1356 1357 /** 1358 * Scroll hint has been shown long enough. Now scroll to appropriate page. 1359 */ 1360 @Override 1361 public void onAlarm(Alarm alarm) { 1362 if (mCurrentScrollDir == SCROLL_LEFT) { 1363 mContent.scrollLeft(); 1364 mScrollHintDir = SCROLL_NONE; 1365 } else if (mCurrentScrollDir == SCROLL_RIGHT) { 1366 mContent.scrollRight(); 1367 mScrollHintDir = SCROLL_NONE; 1368 } else { 1369 // This should not happen 1370 return; 1371 } 1372 mCurrentScrollDir = SCROLL_NONE; 1373 1374 // Pause drag event until the scrolling is finished 1375 mScrollPauseAlarm.setOnAlarmListener(new OnScrollFinishedListener(mDragObject)); 1376 mScrollPauseAlarm.setAlarm(RESCROLL_DELAY); 1377 } 1378 } 1379 1380 private class OnScrollFinishedListener implements OnAlarmListener { 1381 1382 private final DragObject mDragObject; 1383 1384 OnScrollFinishedListener(DragObject object) { 1385 mDragObject = object; 1386 } 1387 1388 /** 1389 * Page scroll is complete. 1390 */ 1391 @Override 1392 public void onAlarm(Alarm alarm) { 1393 // Reorder immediately on page change. 1394 onDragOver(mDragObject); 1395 } 1396 } 1397 1398 // Compares item position based on rank and position giving priority to the rank. 1399 public static final Comparator<ItemInfo> ITEM_POS_COMPARATOR = new Comparator<ItemInfo>() { 1400 1401 @Override 1402 public int compare(ItemInfo lhs, ItemInfo rhs) { 1403 if (lhs.rank != rhs.rank) { 1404 return lhs.rank - rhs.rank; 1405 } else if (lhs.cellY != rhs.cellY) { 1406 return lhs.cellY - rhs.cellY; 1407 } else { 1408 return lhs.cellX - rhs.cellX; 1409 } 1410 } 1411 }; 1412 1413 /** 1414 * Temporary resource held while we don't want to handle info changes 1415 */ 1416 private class SuppressInfoChanges implements AutoCloseable { 1417 1418 SuppressInfoChanges() { 1419 mInfo.removeListener(Folder.this); 1420 } 1421 1422 @Override 1423 public void close() { 1424 mInfo.addListener(Folder.this); 1425 updateTextViewFocus(); 1426 } 1427 } 1428 1429 /** 1430 * Returns a folder which is already open or null 1431 */ 1432 public static Folder getOpen(Launcher launcher) { 1433 return getOpenView(launcher, TYPE_FOLDER); 1434 } 1435 1436 @Override 1437 public void logActionCommand(int command) { 1438 mLauncher.getUserEventDispatcher().logActionCommand( 1439 command, getFolderIcon(), getLogContainerType()); 1440 } 1441 1442 @Override 1443 public int getLogContainerType() { 1444 return ContainerType.FOLDER; 1445 } 1446 1447 @Override 1448 public boolean onBackPressed() { 1449 if (isEditingName()) { 1450 mFolderName.dispatchBackKey(); 1451 } else { 1452 super.onBackPressed(); 1453 } 1454 return true; 1455 } 1456 1457 @Override 1458 public boolean onControllerInterceptTouchEvent(MotionEvent ev) { 1459 if (ev.getAction() == MotionEvent.ACTION_DOWN) { 1460 DragLayer dl = mLauncher.getDragLayer(); 1461 1462 if (isEditingName()) { 1463 if (!dl.isEventOverView(mFolderName, ev)) { 1464 mFolderName.dispatchBackKey(); 1465 return true; 1466 } 1467 return false; 1468 } else if (!dl.isEventOverView(this, ev)) { 1469 if (mLauncher.getAccessibilityDelegate().isInAccessibleDrag()) { 1470 // Do not close the container if in drag and drop. 1471 if (!dl.isEventOverView(mLauncher.getDropTargetBar(), ev)) { 1472 return true; 1473 } 1474 } else { 1475 mLauncher.getUserEventDispatcher().logActionTapOutside( 1476 LoggerUtils.newContainerTarget(ContainerType.FOLDER)); 1477 close(true); 1478 return true; 1479 } 1480 } 1481 } 1482 return false; 1483 } 1484 1485 public static void setLocaleDependentFields(Resources res, boolean force) { 1486 if (sDefaultFolderName == null || force) { 1487 sDefaultFolderName = res.getString(R.string.folder_name); 1488 } 1489 if (sHintText == null || force) { 1490 sHintText = res.getString(R.string.folder_hint_text); 1491 } 1492 } 1493 1494 /** 1495 * Alternative to using {@link #getClipToOutline()} as it only works with derivatives of 1496 * rounded rect. 1497 */ 1498 @Override 1499 public void setClipPath(Path clipPath) { 1500 mClipPath = clipPath; 1501 invalidate(); 1502 } 1503 1504 @Override 1505 public void draw(Canvas canvas) { 1506 if (mClipPath != null) { 1507 int count = canvas.save(); 1508 canvas.clipPath(mClipPath); 1509 super.draw(canvas); 1510 canvas.restoreToCount(count); 1511 } else { 1512 super.draw(canvas); 1513 } 1514 } 1515 } 1516