Folder.java revision 440609453f14fa8ce4bec1d70032f0b7f9614d4e
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 17package com.android.launcher3.folder; 18 19import android.animation.Animator; 20import android.animation.AnimatorListenerAdapter; 21import android.animation.AnimatorSet; 22import android.animation.ObjectAnimator; 23import android.animation.PropertyValuesHolder; 24import android.annotation.SuppressLint; 25import android.content.Context; 26import android.content.res.Resources; 27import android.graphics.Rect; 28import android.text.InputType; 29import android.text.Selection; 30import android.util.AttributeSet; 31import android.util.Log; 32import android.view.ActionMode; 33import android.view.FocusFinder; 34import android.view.KeyEvent; 35import android.view.Menu; 36import android.view.MenuItem; 37import android.view.MotionEvent; 38import android.view.View; 39import android.view.ViewDebug; 40import android.view.accessibility.AccessibilityEvent; 41import android.view.animation.AccelerateInterpolator; 42import android.view.animation.AnimationUtils; 43import android.view.inputmethod.EditorInfo; 44import android.widget.TextView; 45 46import com.android.launcher3.AbstractFloatingView; 47import com.android.launcher3.Alarm; 48import com.android.launcher3.AppInfo; 49import com.android.launcher3.CellLayout; 50import com.android.launcher3.DeviceProfile; 51import com.android.launcher3.DragSource; 52import com.android.launcher3.DropTarget; 53import com.android.launcher3.ExtendedEditText; 54import com.android.launcher3.FolderInfo; 55import com.android.launcher3.FolderInfo.FolderListener; 56import com.android.launcher3.ItemInfo; 57import com.android.launcher3.Launcher; 58import com.android.launcher3.LauncherAnimUtils; 59import com.android.launcher3.LauncherModel; 60import com.android.launcher3.LauncherSettings; 61import com.android.launcher3.LogDecelerateInterpolator; 62import com.android.launcher3.OnAlarmListener; 63import com.android.launcher3.PagedView; 64import com.android.launcher3.R; 65import com.android.launcher3.ShortcutInfo; 66import com.android.launcher3.UninstallDropTarget.DropTargetSource; 67import com.android.launcher3.Utilities; 68import com.android.launcher3.Workspace.ItemOperator; 69import com.android.launcher3.accessibility.AccessibleDragListenerAdapter; 70import com.android.launcher3.config.FeatureFlags; 71import com.android.launcher3.config.ProviderConfig; 72import com.android.launcher3.dragndrop.DragController; 73import com.android.launcher3.dragndrop.DragController.DragListener; 74import com.android.launcher3.dragndrop.DragLayer; 75import com.android.launcher3.dragndrop.DragOptions; 76import com.android.launcher3.pageindicators.PageIndicatorDots; 77import com.android.launcher3.userevent.nano.LauncherLogProto; 78import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType; 79import com.android.launcher3.userevent.nano.LauncherLogProto.Target; 80import com.android.launcher3.util.CircleRevealOutlineProvider; 81import com.android.launcher3.util.Thunk; 82 83import java.util.ArrayList; 84import java.util.Collections; 85import java.util.Comparator; 86 87/** 88 * Represents a set of icons chosen by the user or generated by the system. 89 */ 90public class Folder extends AbstractFloatingView implements DragSource, View.OnClickListener, 91 View.OnLongClickListener, DropTarget, FolderListener, TextView.OnEditorActionListener, 92 View.OnFocusChangeListener, DragListener, DropTargetSource, 93 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(); 127 128 private static String sDefaultFolderName; 129 private static String sHintText; 130 131 private final Alarm mReorderAlarm = new Alarm(); 132 private final Alarm mOnExitAlarm = new Alarm(); 133 private final Alarm mOnScrollHintAlarm = new Alarm(); 134 @Thunk final Alarm mScrollPauseAlarm = new Alarm(); 135 136 @Thunk final ArrayList<View> mItemsInReadingOrder = new ArrayList<View>(); 137 138 private final int mExpandDuration; 139 private final int mMaterialExpandDuration; 140 private final int mMaterialExpandStagger; 141 142 protected final Launcher mLauncher; 143 protected DragController mDragController; 144 public FolderInfo mInfo; 145 146 @Thunk FolderIcon mFolderIcon; 147 148 @Thunk FolderPagedView mContent; 149 public ExtendedEditText mFolderName; 150 private PageIndicatorDots mPageIndicator; 151 152 private View mFooter; 153 private int mFooterHeight; 154 155 // Cell ranks used for drag and drop 156 @Thunk int mTargetRank, mPrevTargetRank, mEmptyCellRank; 157 158 @ViewDebug.ExportedProperty(category = "launcher", 159 mapping = { 160 @ViewDebug.IntToString(from = STATE_NONE, to = "STATE_NONE"), 161 @ViewDebug.IntToString(from = STATE_SMALL, to = "STATE_SMALL"), 162 @ViewDebug.IntToString(from = STATE_ANIMATING, to = "STATE_ANIMATING"), 163 @ViewDebug.IntToString(from = STATE_OPEN, to = "STATE_OPEN"), 164 }) 165 @Thunk int mState = STATE_NONE; 166 @ViewDebug.ExportedProperty(category = "launcher") 167 private boolean mRearrangeOnClose = false; 168 boolean mItemsInvalidated = false; 169 private View mCurrentDragView; 170 private boolean mIsExternalDrag; 171 private boolean mDragInProgress = false; 172 private boolean mDeleteFolderOnDropCompleted = false; 173 private boolean mSuppressFolderDeletion = false; 174 private boolean mItemAddedBackToSelfViaIcon = false; 175 @Thunk float mFolderIconPivotX; 176 @Thunk float mFolderIconPivotY; 177 private boolean mIsEditingName = false; 178 179 @ViewDebug.ExportedProperty(category = "launcher") 180 private boolean mDestroyed; 181 182 @Thunk Runnable mDeferredAction; 183 private boolean mDeferDropAfterUninstall; 184 private boolean mUninstallSuccessful; 185 186 // Folder scrolling 187 private int mScrollAreaOffset; 188 189 @Thunk int mScrollHintDir = SCROLL_NONE; 190 @Thunk int mCurrentScrollDir = SCROLL_NONE; 191 192 /** 193 * Used to inflate the Workspace from XML. 194 * 195 * @param context The application's context. 196 * @param attrs The attributes set containing the Workspace's customization values. 197 */ 198 public Folder(Context context, AttributeSet attrs) { 199 super(context, attrs); 200 setAlwaysDrawnWithCacheEnabled(false); 201 Resources res = getResources(); 202 mExpandDuration = res.getInteger(R.integer.config_folderExpandDuration); 203 mMaterialExpandDuration = res.getInteger(R.integer.config_materialFolderExpandDuration); 204 mMaterialExpandStagger = res.getInteger(R.integer.config_materialFolderExpandStagger); 205 206 if (sDefaultFolderName == null) { 207 sDefaultFolderName = res.getString(R.string.folder_name); 208 } 209 if (sHintText == null) { 210 sHintText = res.getString(R.string.folder_hint_text); 211 } 212 mLauncher = Launcher.getLauncher(context); 213 // We need this view to be focusable in touch mode so that when text editing of the folder 214 // name is complete, we have something to focus on, thus hiding the cursor and giving 215 // reliable behavior when clicking the text field (since it will always gain focus on click). 216 setFocusableInTouchMode(true); 217 } 218 219 @Override 220 protected void onFinishInflate() { 221 super.onFinishInflate(); 222 mContent = (FolderPagedView) findViewById(R.id.folder_content); 223 mContent.setFolder(this); 224 225 mPageIndicator = (PageIndicatorDots) findViewById(R.id.folder_page_indicator); 226 mFolderName = (ExtendedEditText) findViewById(R.id.folder_name); 227 mFolderName.setOnBackKeyListener(this); 228 mFolderName.setOnFocusChangeListener(this); 229 230 if (!Utilities.ATLEAST_MARSHMALLOW) { 231 // We disable action mode in older OSes where floating selection menu is not yet 232 // available. 233 mFolderName.setCustomSelectionActionModeCallback(new ActionMode.Callback() { 234 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 235 return false; 236 } 237 238 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 239 return false; 240 } 241 242 public void onDestroyActionMode(ActionMode mode) { 243 } 244 245 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 246 return false; 247 } 248 }); 249 } 250 mFolderName.setOnEditorActionListener(this); 251 mFolderName.setSelectAllOnFocus(true); 252 mFolderName.setInputType(mFolderName.getInputType() | 253 InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS | InputType.TYPE_TEXT_FLAG_CAP_WORDS); 254 255 mFooter = findViewById(R.id.folder_footer); 256 257 // We find out how tall footer wants to be (it is set to wrap_content), so that 258 // we can allocate the appropriate amount of space for it. 259 int measureSpec = MeasureSpec.UNSPECIFIED; 260 mFooter.measure(measureSpec, measureSpec); 261 mFooterHeight = mFooter.getMeasuredHeight(); 262 } 263 264 public void onClick(View v) { 265 Object tag = v.getTag(); 266 if (tag instanceof ShortcutInfo) { 267 mLauncher.onClick(v); 268 } 269 } 270 271 public boolean onLongClick(View v) { 272 // Return if global dragging is not enabled 273 if (!mLauncher.isDraggingEnabled()) return true; 274 return startDrag(v, new DragOptions()); 275 } 276 277 public boolean startDrag(View v, DragOptions options) { 278 Object tag = v.getTag(); 279 if (tag instanceof ShortcutInfo) { 280 ShortcutInfo item = (ShortcutInfo) tag; 281 if (!v.isInTouchMode()) { 282 return false; 283 } 284 285 mEmptyCellRank = item.rank; 286 mCurrentDragView = v; 287 288 mDragController.addDragListener(this); 289 if (options.isAccessibleDrag) { 290 mDragController.addDragListener(new AccessibleDragListenerAdapter( 291 mContent, CellLayout.FOLDER_ACCESSIBILITY_DRAG) { 292 293 @Override 294 protected void enableAccessibleDrag(boolean enable) { 295 super.enableAccessibleDrag(enable); 296 mFooter.setImportantForAccessibility(enable 297 ? IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS 298 : IMPORTANT_FOR_ACCESSIBILITY_AUTO); 299 } 300 }); 301 } 302 303 mLauncher.getWorkspace().beginDragShared(v, this, options); 304 } 305 return true; 306 } 307 308 @Override 309 public void onDragStart(DropTarget.DragObject dragObject, DragOptions options) { 310 if (dragObject.dragSource != this) { 311 return; 312 } 313 314 mContent.removeItem(mCurrentDragView); 315 if (dragObject.dragInfo instanceof ShortcutInfo) { 316 mItemsInvalidated = true; 317 318 // We do not want to get events for the item being removed, as they will get handled 319 // when the drop completes 320 try (SuppressInfoChanges s = new SuppressInfoChanges()) { 321 mInfo.remove((ShortcutInfo) dragObject.dragInfo, true); 322 } 323 } 324 mDragInProgress = true; 325 mItemAddedBackToSelfViaIcon = false; 326 } 327 328 @Override 329 public void onDragEnd() { 330 if (mIsExternalDrag && mDragInProgress) { 331 completeDragExit(); 332 } 333 mDragController.removeDragListener(this); 334 } 335 336 public boolean isEditingName() { 337 return mIsEditingName; 338 } 339 340 public void startEditingFolderName() { 341 post(new Runnable() { 342 @Override 343 public void run() { 344 mFolderName.setHint(""); 345 mIsEditingName = true; 346 } 347 }); 348 } 349 350 351 @Override 352 public boolean onBackKey() { 353 mFolderName.setHint(sHintText); 354 // Convert to a string here to ensure that no other state associated with the text field 355 // gets saved. 356 String newTitle = mFolderName.getText().toString(); 357 mInfo.setTitle(newTitle); 358 mLauncher.getModelWriter().updateItemInDatabase(mInfo); 359 360 Utilities.sendCustomAccessibilityEvent( 361 this, AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED, 362 getContext().getString(R.string.folder_renamed, newTitle)); 363 364 // This ensures that focus is gained every time the field is clicked, which selects all 365 // the text and brings up the soft keyboard if necessary. 366 mFolderName.clearFocus(); 367 368 Selection.setSelection(mFolderName.getText(), 0, 0); 369 mIsEditingName = false; 370 return true; 371 } 372 373 public boolean onEditorAction(TextView v, int actionId, KeyEvent event) { 374 if (actionId == EditorInfo.IME_ACTION_DONE) { 375 mFolderName.dispatchBackKey(); 376 return true; 377 } 378 return false; 379 } 380 381 @Override 382 public ExtendedEditText getActiveTextView() { 383 return isEditingName() ? mFolderName : null; 384 } 385 386 public FolderIcon getFolderIcon() { 387 return mFolderIcon; 388 } 389 390 /** 391 * We need to handle touch events to prevent them from falling through to the workspace below. 392 */ 393 @SuppressLint("ClickableViewAccessibility") 394 @Override 395 public boolean onTouchEvent(MotionEvent ev) { 396 return true; 397 } 398 399 public void setDragController(DragController dragController) { 400 mDragController = dragController; 401 } 402 403 public void setFolderIcon(FolderIcon icon) { 404 mFolderIcon = icon; 405 } 406 407 @Override 408 protected void onAttachedToWindow() { 409 // requestFocus() causes the focus onto the folder itself, which doesn't cause visual 410 // effect but the next arrow key can start the keyboard focus inside of the folder, not 411 // the folder itself. 412 requestFocus(); 413 super.onAttachedToWindow(); 414 } 415 416 @Override 417 public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) { 418 // When the folder gets focus, we don't want to announce the list of items. 419 return true; 420 } 421 422 @Override 423 public View focusSearch(int direction) { 424 // When the folder is focused, further focus search should be within the folder contents. 425 return FocusFinder.getInstance().findNextFocus(this, null, direction); 426 } 427 428 /** 429 * @return the FolderInfo object associated with this folder 430 */ 431 public FolderInfo getInfo() { 432 return mInfo; 433 } 434 435 void bind(FolderInfo info) { 436 mInfo = info; 437 ArrayList<ShortcutInfo> children = info.contents; 438 Collections.sort(children, ITEM_POS_COMPARATOR); 439 440 ArrayList<ShortcutInfo> overflow = mContent.bindItems(children); 441 442 // If our folder has too many items we prune them from the list. This is an issue 443 // when upgrading from the old Folders implementation which could contain an unlimited 444 // number of items. 445 // TODO: Remove this, as with multi-page folders, there will never be any overflow 446 for (ShortcutInfo item: overflow) { 447 mInfo.remove(item, false); 448 mLauncher.getModelWriter().deleteItemFromDatabase(item); 449 } 450 451 DragLayer.LayoutParams lp = (DragLayer.LayoutParams) getLayoutParams(); 452 if (lp == null) { 453 lp = new DragLayer.LayoutParams(0, 0); 454 lp.customPosition = true; 455 setLayoutParams(lp); 456 } 457 centerAboutIcon(); 458 459 mItemsInvalidated = true; 460 updateTextViewFocus(); 461 mInfo.addListener(this); 462 463 if (!sDefaultFolderName.contentEquals(mInfo.title)) { 464 mFolderName.setText(mInfo.title); 465 } else { 466 mFolderName.setText(""); 467 } 468 469 // In case any children didn't come across during loading, clean up the folder accordingly 470 mFolderIcon.post(new Runnable() { 471 public void run() { 472 if (getItemCount() <= 1) { 473 replaceFolderWithFinalItem(); 474 } 475 } 476 }); 477 } 478 479 /** 480 * Creates a new UserFolder, inflated from R.layout.user_folder. 481 * 482 * @param launcher The main activity. 483 * 484 * @return A new UserFolder. 485 */ 486 @SuppressLint("InflateParams") 487 static Folder fromXml(Launcher launcher) { 488 return (Folder) launcher.getLayoutInflater().inflate( 489 FeatureFlags.LAUNCHER3_DISABLE_ICON_NORMALIZATION 490 ? R.layout.user_folder : R.layout.user_folder_icon_normalized, null); 491 } 492 493 /** 494 * This method is intended to make the UserFolder to be visually identical in size and position 495 * to its associated FolderIcon. This allows for a seamless transition into the expanded state. 496 */ 497 private void positionAndSizeAsIcon() { 498 if (!(getParent() instanceof DragLayer)) return; 499 setScaleX(0.8f); 500 setScaleY(0.8f); 501 setAlpha(0f); 502 mState = STATE_SMALL; 503 } 504 505 private void prepareReveal() { 506 setScaleX(1f); 507 setScaleY(1f); 508 setAlpha(1f); 509 mState = STATE_SMALL; 510 } 511 512 /** 513 * Opens the user folder described by the specified tag. The opening of the folder 514 * is animated relative to the specified View. If the View is null, no animation 515 * is played. 516 */ 517 public void animateOpen() { 518 Folder openFolder = getOpen(mLauncher); 519 if (openFolder != null && openFolder != this) { 520 // Close any open folder before opening a folder. 521 openFolder.close(true); 522 } 523 524 DragLayer dragLayer = mLauncher.getDragLayer(); 525 // Just verify that the folder hasn't already been added to the DragLayer. 526 // There was a one-off crash where the folder had a parent already. 527 if (getParent() == null) { 528 dragLayer.addView(this); 529 mDragController.addDropTarget(this); 530 } else { 531 if (ProviderConfig.IS_DOGFOOD_BUILD) { 532 Log.e(TAG, "Opening folder (" + this + ") which already has a parent:" 533 + getParent()); 534 } 535 } 536 537 mIsOpen = true; 538 539 mContent.completePendingPageChanges(); 540 if (!mDragInProgress) { 541 // Open on the first page. 542 mContent.snapToPageImmediately(0); 543 } 544 545 // This is set to true in close(), but isn't reset to false until onDropCompleted(). This 546 // leads to an inconsistent state if you drag out of the folder and drag back in without 547 // dropping. One resulting issue is that replaceFolderWithFinalItem() can be called twice. 548 mDeleteFolderOnDropCompleted = false; 549 550 final Runnable onCompleteRunnable; 551 prepareReveal(); 552 centerAboutIcon(); 553 554 mFolderIcon.growAndFadeOut(); 555 556 AnimatorSet anim = LauncherAnimUtils.createAnimatorSet(); 557 int width = getFolderWidth(); 558 int height = getFolderHeight(); 559 560 float transX = - 0.075f * (width / 2 - getPivotX()); 561 float transY = - 0.075f * (height / 2 - getPivotY()); 562 setTranslationX(transX); 563 setTranslationY(transY); 564 PropertyValuesHolder tx = PropertyValuesHolder.ofFloat(TRANSLATION_X, transX, 0); 565 PropertyValuesHolder ty = PropertyValuesHolder.ofFloat(TRANSLATION_Y, transY, 0); 566 567 Animator drift = ObjectAnimator.ofPropertyValuesHolder(this, tx, ty); 568 drift.setDuration(mMaterialExpandDuration); 569 drift.setStartDelay(mMaterialExpandStagger); 570 drift.setInterpolator(new LogDecelerateInterpolator(100, 0)); 571 572 int rx = (int) Math.max(Math.max(width - getPivotX(), 0), getPivotX()); 573 int ry = (int) Math.max(Math.max(height - getPivotY(), 0), getPivotY()); 574 float radius = (float) Math.hypot(rx, ry); 575 576 Animator reveal = new CircleRevealOutlineProvider((int) getPivotX(), 577 (int) getPivotY(), 0, radius).createRevealAnimator(this); 578 reveal.setDuration(mMaterialExpandDuration); 579 reveal.setInterpolator(new LogDecelerateInterpolator(100, 0)); 580 581 mContent.setAlpha(0f); 582 Animator iconsAlpha = ObjectAnimator.ofFloat(mContent, "alpha", 0f, 1f); 583 iconsAlpha.setDuration(mMaterialExpandDuration); 584 iconsAlpha.setStartDelay(mMaterialExpandStagger); 585 iconsAlpha.setInterpolator(new AccelerateInterpolator(1.5f)); 586 587 mFooter.setAlpha(0f); 588 Animator textAlpha = ObjectAnimator.ofFloat(mFooter, "alpha", 0f, 1f); 589 textAlpha.setDuration(mMaterialExpandDuration); 590 textAlpha.setStartDelay(mMaterialExpandStagger); 591 textAlpha.setInterpolator(new AccelerateInterpolator(1.5f)); 592 593 anim.play(drift); 594 anim.play(iconsAlpha); 595 anim.play(textAlpha); 596 anim.play(reveal); 597 598 mContent.setLayerType(LAYER_TYPE_HARDWARE, null); 599 mFooter.setLayerType(LAYER_TYPE_HARDWARE, null); 600 onCompleteRunnable = new Runnable() { 601 @Override 602 public void run() { 603 mContent.setLayerType(LAYER_TYPE_NONE, null); 604 mFooter.setLayerType(LAYER_TYPE_NONE, null); 605 mLauncher.getUserEventDispatcher().resetElapsedContainerMillis(); 606 } 607 }; 608 anim.addListener(new AnimatorListenerAdapter() { 609 @Override 610 public void onAnimationStart(Animator animation) { 611 Utilities.sendCustomAccessibilityEvent( 612 Folder.this, 613 AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED, 614 mContent.getAccessibilityDescription()); 615 mState = STATE_ANIMATING; 616 } 617 @Override 618 public void onAnimationEnd(Animator animation) { 619 mState = STATE_OPEN; 620 621 onCompleteRunnable.run(); 622 mContent.setFocusOnFirstChild(); 623 } 624 }); 625 626 // Footer animation 627 if (mContent.getPageCount() > 1 && !mInfo.hasOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION)) { 628 int footerWidth = mContent.getDesiredWidth() 629 - mFooter.getPaddingLeft() - mFooter.getPaddingRight(); 630 631 float textWidth = mFolderName.getPaint().measureText(mFolderName.getText().toString()); 632 float translation = (footerWidth - textWidth) / 2; 633 mFolderName.setTranslationX(mContent.mIsRtl ? -translation : translation); 634 mPageIndicator.prepareEntryAnimation(); 635 636 // Do not update the flag if we are in drag mode. The flag will be updated, when we 637 // actually drop the icon. 638 final boolean updateAnimationFlag = !mDragInProgress; 639 anim.addListener(new AnimatorListenerAdapter() { 640 641 @SuppressLint("InlinedApi") 642 @Override 643 public void onAnimationEnd(Animator animation) { 644 mFolderName.animate().setDuration(FOLDER_NAME_ANIMATION_DURATION) 645 .translationX(0) 646 .setInterpolator(AnimationUtils.loadInterpolator( 647 mLauncher, android.R.interpolator.fast_out_slow_in)); 648 mPageIndicator.playEntryAnimation(); 649 650 if (updateAnimationFlag) { 651 mInfo.setOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION, true, 652 mLauncher.getModelWriter()); 653 } 654 } 655 }); 656 } else { 657 mFolderName.setTranslationX(0); 658 } 659 660 mPageIndicator.stopAllAnimations(); 661 anim.start(); 662 663 // Make sure the folder picks up the last drag move even if the finger doesn't move. 664 if (mDragController.isDragging()) { 665 mDragController.forceTouchMove(); 666 } 667 668 mContent.verifyVisibleHighResIcons(mContent.getNextPage()); 669 670 // Notify the accessibility manager that this folder "window" has appeared and occluded 671 // the workspace items 672 sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 673 dragLayer.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 674 } 675 676 public void beginExternalDrag() { 677 mEmptyCellRank = mContent.allocateRankForNewItem(); 678 mIsExternalDrag = true; 679 mDragInProgress = true; 680 681 // Since this folder opened by another controller, it might not get onDrop or 682 // onDropComplete. Perform cleanup once drag-n-drop ends. 683 mDragController.addDragListener(this); 684 } 685 686 @Override 687 protected boolean isOfType(int type) { 688 return (type & TYPE_FOLDER) != 0; 689 } 690 691 @Override 692 protected void handleClose(boolean animate) { 693 mIsOpen = false; 694 695 if (isEditingName()) { 696 mFolderName.dispatchBackKey(); 697 } 698 699 if (mFolderIcon != null) { 700 mFolderIcon.shrinkAndFadeIn(animate); 701 } 702 703 if (!(getParent() instanceof DragLayer)) return; 704 DragLayer parent = (DragLayer) getParent(); 705 706 if (animate) { 707 animateClosed(); 708 } else { 709 closeComplete(false); 710 } 711 712 // Notify the accessibility manager that this folder "window" has disappeared and no 713 // longer occludes the workspace items 714 parent.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 715 } 716 717 private void animateClosed() { 718 final ObjectAnimator oa = LauncherAnimUtils.ofViewAlphaAndScale(this, 0, 0.9f, 0.9f); 719 oa.addListener(new AnimatorListenerAdapter() { 720 @Override 721 public void onAnimationEnd(Animator animation) { 722 setLayerType(LAYER_TYPE_NONE, null); 723 closeComplete(true); 724 } 725 @Override 726 public void onAnimationStart(Animator animation) { 727 Utilities.sendCustomAccessibilityEvent( 728 Folder.this, 729 AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED, 730 getContext().getString(R.string.folder_closed)); 731 mState = STATE_ANIMATING; 732 } 733 }); 734 oa.setDuration(mExpandDuration); 735 setLayerType(LAYER_TYPE_HARDWARE, null); 736 oa.start(); 737 } 738 739 private void closeComplete(boolean wasAnimated) { 740 // TODO: Clear all active animations. 741 DragLayer parent = (DragLayer) getParent(); 742 if (parent != null) { 743 parent.removeView(this); 744 } 745 mDragController.removeDropTarget(this); 746 clearFocus(); 747 if (wasAnimated) { 748 mFolderIcon.requestFocus(); 749 } 750 751 if (mRearrangeOnClose) { 752 rearrangeChildren(); 753 mRearrangeOnClose = false; 754 } 755 if (getItemCount() <= 1) { 756 if (!mDragInProgress && !mSuppressFolderDeletion) { 757 replaceFolderWithFinalItem(); 758 } else if (mDragInProgress) { 759 mDeleteFolderOnDropCompleted = true; 760 } 761 } 762 mSuppressFolderDeletion = false; 763 clearDragInfo(); 764 mState = STATE_SMALL; 765 } 766 767 public boolean acceptDrop(DragObject d) { 768 final ItemInfo item = d.dragInfo; 769 final int itemType = item.itemType; 770 return ((itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || 771 itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT || 772 itemType == LauncherSettings.Favorites.ITEM_TYPE_DEEP_SHORTCUT) && 773 !isFull()); 774 } 775 776 public void onDragEnter(DragObject d) { 777 mPrevTargetRank = -1; 778 mOnExitAlarm.cancelAlarm(); 779 // Get the area offset such that the folder only closes if half the drag icon width 780 // is outside the folder area 781 mScrollAreaOffset = d.dragView.getDragRegionWidth() / 2 - d.xOffset; 782 } 783 784 OnAlarmListener mReorderAlarmListener = new OnAlarmListener() { 785 public void onAlarm(Alarm alarm) { 786 mContent.realTimeReorder(mEmptyCellRank, mTargetRank); 787 mEmptyCellRank = mTargetRank; 788 } 789 }; 790 791 public boolean isLayoutRtl() { 792 return (getLayoutDirection() == LAYOUT_DIRECTION_RTL); 793 } 794 795 @Override 796 public void onDragOver(DragObject d) { 797 onDragOver(d, REORDER_DELAY); 798 } 799 800 private int getTargetRank(DragObject d, float[] recycle) { 801 recycle = d.getVisualCenter(recycle); 802 return mContent.findNearestArea( 803 (int) recycle[0] - getPaddingLeft(), (int) recycle[1] - getPaddingTop()); 804 } 805 806 @Thunk void onDragOver(DragObject d, int reorderDelay) { 807 if (mScrollPauseAlarm.alarmPending()) { 808 return; 809 } 810 final float[] r = new float[2]; 811 mTargetRank = getTargetRank(d, r); 812 813 if (mTargetRank != mPrevTargetRank) { 814 mReorderAlarm.cancelAlarm(); 815 mReorderAlarm.setOnAlarmListener(mReorderAlarmListener); 816 mReorderAlarm.setAlarm(REORDER_DELAY); 817 mPrevTargetRank = mTargetRank; 818 819 if (d.stateAnnouncer != null) { 820 d.stateAnnouncer.announce(getContext().getString(R.string.move_to_position, 821 mTargetRank + 1)); 822 } 823 } 824 825 float x = r[0]; 826 int currentPage = mContent.getNextPage(); 827 828 float cellOverlap = mContent.getCurrentCellLayout().getCellWidth() 829 * ICON_OVERSCROLL_WIDTH_FACTOR; 830 boolean isOutsideLeftEdge = x < cellOverlap; 831 boolean isOutsideRightEdge = x > (getWidth() - cellOverlap); 832 833 if (currentPage > 0 && (mContent.mIsRtl ? isOutsideRightEdge : isOutsideLeftEdge)) { 834 showScrollHint(SCROLL_LEFT, d); 835 } else if (currentPage < (mContent.getPageCount() - 1) 836 && (mContent.mIsRtl ? isOutsideLeftEdge : isOutsideRightEdge)) { 837 showScrollHint(SCROLL_RIGHT, d); 838 } else { 839 mOnScrollHintAlarm.cancelAlarm(); 840 if (mScrollHintDir != SCROLL_NONE) { 841 mContent.clearScrollHint(); 842 mScrollHintDir = SCROLL_NONE; 843 } 844 } 845 } 846 847 private void showScrollHint(int direction, DragObject d) { 848 // Show scroll hint on the right 849 if (mScrollHintDir != direction) { 850 mContent.showScrollHint(direction); 851 mScrollHintDir = direction; 852 } 853 854 // Set alarm for when the hint is complete 855 if (!mOnScrollHintAlarm.alarmPending() || mCurrentScrollDir != direction) { 856 mCurrentScrollDir = direction; 857 mOnScrollHintAlarm.cancelAlarm(); 858 mOnScrollHintAlarm.setOnAlarmListener(new OnScrollHintListener(d)); 859 mOnScrollHintAlarm.setAlarm(SCROLL_HINT_DURATION); 860 861 mReorderAlarm.cancelAlarm(); 862 mTargetRank = mEmptyCellRank; 863 } 864 } 865 866 OnAlarmListener mOnExitAlarmListener = new OnAlarmListener() { 867 public void onAlarm(Alarm alarm) { 868 completeDragExit(); 869 } 870 }; 871 872 public void completeDragExit() { 873 if (mIsOpen) { 874 close(true); 875 mRearrangeOnClose = true; 876 } else if (mState == STATE_ANIMATING) { 877 mRearrangeOnClose = true; 878 } else { 879 rearrangeChildren(); 880 clearDragInfo(); 881 } 882 } 883 884 private void clearDragInfo() { 885 mCurrentDragView = null; 886 mIsExternalDrag = false; 887 } 888 889 public void onDragExit(DragObject d) { 890 // We only close the folder if this is a true drag exit, ie. not because 891 // a drop has occurred above the folder. 892 if (!d.dragComplete) { 893 mOnExitAlarm.setOnAlarmListener(mOnExitAlarmListener); 894 mOnExitAlarm.setAlarm(ON_EXIT_CLOSE_DELAY); 895 } 896 mReorderAlarm.cancelAlarm(); 897 898 mOnScrollHintAlarm.cancelAlarm(); 899 mScrollPauseAlarm.cancelAlarm(); 900 if (mScrollHintDir != SCROLL_NONE) { 901 mContent.clearScrollHint(); 902 mScrollHintDir = SCROLL_NONE; 903 } 904 } 905 906 /** 907 * When performing an accessibility drop, onDrop is sent immediately after onDragEnter. So we 908 * need to complete all transient states based on timers. 909 */ 910 @Override 911 public void prepareAccessibilityDrop() { 912 if (mReorderAlarm.alarmPending()) { 913 mReorderAlarm.cancelAlarm(); 914 mReorderAlarmListener.onAlarm(mReorderAlarm); 915 } 916 } 917 918 public void onDropCompleted(final View target, final DragObject d, 919 final boolean isFlingToDelete, final boolean success) { 920 if (mDeferDropAfterUninstall) { 921 Log.d(TAG, "Deferred handling drop because waiting for uninstall."); 922 mDeferredAction = new Runnable() { 923 public void run() { 924 onDropCompleted(target, d, isFlingToDelete, success); 925 mDeferredAction = null; 926 } 927 }; 928 return; 929 } 930 931 boolean beingCalledAfterUninstall = mDeferredAction != null; 932 boolean successfulDrop = 933 success && (!beingCalledAfterUninstall || mUninstallSuccessful); 934 935 if (successfulDrop) { 936 if (mDeleteFolderOnDropCompleted && !mItemAddedBackToSelfViaIcon && target != this) { 937 replaceFolderWithFinalItem(); 938 } 939 } else { 940 // The drag failed, we need to return the item to the folder 941 ShortcutInfo info = (ShortcutInfo) d.dragInfo; 942 View icon = (mCurrentDragView != null && mCurrentDragView.getTag() == info) 943 ? mCurrentDragView : mContent.createNewView(info); 944 ArrayList<View> views = getItemsInReadingOrder(); 945 views.add(info.rank, icon); 946 mContent.arrangeChildren(views, views.size()); 947 mItemsInvalidated = true; 948 949 try (SuppressInfoChanges s = new SuppressInfoChanges()) { 950 mFolderIcon.onDrop(d); 951 } 952 } 953 954 if (target != this) { 955 if (mOnExitAlarm.alarmPending()) { 956 mOnExitAlarm.cancelAlarm(); 957 if (!successfulDrop) { 958 mSuppressFolderDeletion = true; 959 } 960 mScrollPauseAlarm.cancelAlarm(); 961 completeDragExit(); 962 } 963 } 964 965 mDeleteFolderOnDropCompleted = false; 966 mDragInProgress = false; 967 mItemAddedBackToSelfViaIcon = false; 968 mCurrentDragView = null; 969 970 // Reordering may have occured, and we need to save the new item locations. We do this once 971 // at the end to prevent unnecessary database operations. 972 updateItemLocationsInDatabaseBatch(); 973 974 // Use the item count to check for multi-page as the folder UI may not have 975 // been refreshed yet. 976 if (getItemCount() <= mContent.itemsPerPage()) { 977 // Show the animation, next time something is added to the folder. 978 mInfo.setOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION, false, 979 mLauncher.getModelWriter()); 980 } 981 982 if (!isFlingToDelete) { 983 // Fling to delete already exits spring loaded mode after the animation finishes. 984 mLauncher.exitSpringLoadedDragModeDelayed(successfulDrop, 985 Launcher.EXIT_SPRINGLOADED_MODE_SHORT_TIMEOUT, null); 986 } 987 } 988 989 @Override 990 public void deferCompleteDropAfterUninstallActivity() { 991 mDeferDropAfterUninstall = true; 992 } 993 994 @Override 995 public void onDragObjectRemoved(boolean success) { 996 mDeferDropAfterUninstall = false; 997 mUninstallSuccessful = success; 998 if (mDeferredAction != null) { 999 mDeferredAction.run(); 1000 } 1001 } 1002 1003 @Override 1004 public float getIntrinsicIconScaleFactor() { 1005 return 1f; 1006 } 1007 1008 @Override 1009 public boolean supportsAppInfoDropTarget() { 1010 return true; 1011 } 1012 1013 @Override 1014 public boolean supportsDeleteDropTarget() { 1015 return true; 1016 } 1017 1018 private void updateItemLocationsInDatabaseBatch() { 1019 ArrayList<View> list = getItemsInReadingOrder(); 1020 ArrayList<ItemInfo> items = new ArrayList<ItemInfo>(); 1021 for (int i = 0; i < list.size(); i++) { 1022 View v = list.get(i); 1023 ItemInfo info = (ItemInfo) v.getTag(); 1024 info.rank = i; 1025 items.add(info); 1026 } 1027 1028 mLauncher.getModelWriter().moveItemsInDatabase(items, mInfo.id, 0); 1029 } 1030 1031 public void notifyDrop() { 1032 if (mDragInProgress) { 1033 mItemAddedBackToSelfViaIcon = true; 1034 } 1035 } 1036 1037 public boolean isDropEnabled() { 1038 return true; 1039 } 1040 1041 public boolean isFull() { 1042 return mContent.isFull(); 1043 } 1044 1045 private void centerAboutIcon() { 1046 DeviceProfile grid = mLauncher.getDeviceProfile(); 1047 1048 DragLayer.LayoutParams lp = (DragLayer.LayoutParams) getLayoutParams(); 1049 DragLayer parent = (DragLayer) mLauncher.findViewById(R.id.drag_layer); 1050 int width = getFolderWidth(); 1051 int height = getFolderHeight(); 1052 1053 float scale = parent.getDescendantRectRelativeToSelf(mFolderIcon, sTempRect); 1054 int centerX = sTempRect.centerX(); 1055 int centerY = sTempRect.centerY(); 1056 int centeredLeft = centerX - width / 2; 1057 int centeredTop = centerY - height / 2; 1058 1059 // We need to bound the folder to the currently visible workspace area 1060 mLauncher.getWorkspace().getPageAreaRelativeToDragLayer(sTempRect); 1061 int left = Math.min(Math.max(sTempRect.left, centeredLeft), 1062 sTempRect.right- width); 1063 int top = Math.min(Math.max(sTempRect.top, centeredTop), 1064 sTempRect.bottom - height); 1065 1066 int distFromEdgeOfScreen = mLauncher.getWorkspace().getPaddingLeft() + getPaddingLeft(); 1067 1068 if (grid.isPhone && (grid.availableWidthPx - width) < 4 * distFromEdgeOfScreen) { 1069 // Center the folder if it is very close to being centered anyway, by virtue of 1070 // filling the majority of the viewport. ie. remove it from the uncanny valley 1071 // of centeredness. 1072 left = (grid.availableWidthPx - width) / 2; 1073 } else if (width >= sTempRect.width()) { 1074 // If the folder doesn't fit within the bounds, center it about the desired bounds 1075 left = sTempRect.left + (sTempRect.width() - width) / 2; 1076 } 1077 if (height >= sTempRect.height()) { 1078 // Folder height is greater than page height, center on page 1079 top = sTempRect.top + (sTempRect.height() - height) / 2; 1080 } else { 1081 // Folder height is less than page height, so bound it to the absolute open folder 1082 // bounds if necessary 1083 Rect folderBounds = grid.getAbsoluteOpenFolderBounds(); 1084 left = Math.max(folderBounds.left, Math.min(left, folderBounds.right - width)); 1085 top = Math.max(folderBounds.top, Math.min(top, folderBounds.bottom - height)); 1086 } 1087 1088 int folderPivotX = width / 2 + (centeredLeft - left); 1089 int folderPivotY = height / 2 + (centeredTop - top); 1090 setPivotX(folderPivotX); 1091 setPivotY(folderPivotY); 1092 1093 mFolderIconPivotX = (int) (mFolderIcon.getMeasuredWidth() * 1094 (1.0f * folderPivotX / width)); 1095 mFolderIconPivotY = (int) (mFolderIcon.getMeasuredHeight() * 1096 (1.0f * folderPivotY / height)); 1097 1098 lp.width = width; 1099 lp.height = height; 1100 lp.x = left; 1101 lp.y = top; 1102 } 1103 1104 public float getPivotXForIconAnimation() { 1105 return mFolderIconPivotX; 1106 } 1107 public float getPivotYForIconAnimation() { 1108 return mFolderIconPivotY; 1109 } 1110 1111 private int getContentAreaHeight() { 1112 DeviceProfile grid = mLauncher.getDeviceProfile(); 1113 int maxContentAreaHeight = grid.availableHeightPx 1114 - grid.getTotalWorkspacePadding().y - mFooterHeight; 1115 int height = Math.min(maxContentAreaHeight, 1116 mContent.getDesiredHeight()); 1117 return Math.max(height, MIN_CONTENT_DIMEN); 1118 } 1119 1120 private int getContentAreaWidth() { 1121 return Math.max(mContent.getDesiredWidth(), MIN_CONTENT_DIMEN); 1122 } 1123 1124 private int getFolderWidth() { 1125 return getPaddingLeft() + getPaddingRight() + mContent.getDesiredWidth(); 1126 } 1127 1128 private int getFolderHeight() { 1129 return getFolderHeight(getContentAreaHeight()); 1130 } 1131 1132 private int getFolderHeight(int contentAreaHeight) { 1133 return getPaddingTop() + getPaddingBottom() + contentAreaHeight + mFooterHeight; 1134 } 1135 1136 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 1137 int contentWidth = getContentAreaWidth(); 1138 int contentHeight = getContentAreaHeight(); 1139 1140 int contentAreaWidthSpec = MeasureSpec.makeMeasureSpec(contentWidth, MeasureSpec.EXACTLY); 1141 int contentAreaHeightSpec = MeasureSpec.makeMeasureSpec(contentHeight, MeasureSpec.EXACTLY); 1142 1143 mContent.setFixedSize(contentWidth, contentHeight); 1144 mContent.measure(contentAreaWidthSpec, contentAreaHeightSpec); 1145 1146 if (mContent.getChildCount() > 0) { 1147 int cellIconGap = (mContent.getPageAt(0).getCellWidth() 1148 - mLauncher.getDeviceProfile().iconSizePx) / 2; 1149 mFooter.setPadding(mContent.getPaddingLeft() + cellIconGap, 1150 mFooter.getPaddingTop(), 1151 mContent.getPaddingRight() + cellIconGap, 1152 mFooter.getPaddingBottom()); 1153 } 1154 mFooter.measure(contentAreaWidthSpec, 1155 MeasureSpec.makeMeasureSpec(mFooterHeight, MeasureSpec.EXACTLY)); 1156 1157 int folderWidth = getPaddingLeft() + getPaddingRight() + contentWidth; 1158 int folderHeight = getFolderHeight(contentHeight); 1159 setMeasuredDimension(folderWidth, folderHeight); 1160 } 1161 1162 /** 1163 * Rearranges the children based on their rank. 1164 */ 1165 public void rearrangeChildren() { 1166 rearrangeChildren(-1); 1167 } 1168 1169 /** 1170 * Rearranges the children based on their rank. 1171 * @param itemCount if greater than the total children count, empty spaces are left at the end, 1172 * otherwise it is ignored. 1173 */ 1174 public void rearrangeChildren(int itemCount) { 1175 ArrayList<View> views = getItemsInReadingOrder(); 1176 mContent.arrangeChildren(views, Math.max(itemCount, views.size())); 1177 mItemsInvalidated = true; 1178 } 1179 1180 public int getItemCount() { 1181 return mContent.getItemCount(); 1182 } 1183 1184 @Thunk void replaceFolderWithFinalItem() { 1185 // Add the last remaining child to the workspace in place of the folder 1186 Runnable onCompleteRunnable = new Runnable() { 1187 @Override 1188 public void run() { 1189 int itemCount = mInfo.contents.size(); 1190 if (itemCount <= 1) { 1191 View newIcon = null; 1192 1193 if (itemCount == 1) { 1194 // Move the item from the folder to the workspace, in the position of the 1195 // folder 1196 CellLayout cellLayout = mLauncher.getCellLayout(mInfo.container, 1197 mInfo.screenId); 1198 ShortcutInfo finalItem = mInfo.contents.remove(0); 1199 newIcon = mLauncher.createShortcut(cellLayout, finalItem); 1200 mLauncher.getModelWriter().addOrMoveItemInDatabase(finalItem, 1201 mInfo.container, mInfo.screenId, mInfo.cellX, mInfo.cellY); 1202 } 1203 1204 // Remove the folder 1205 mLauncher.removeItem(mFolderIcon, mInfo, true /* deleteFromDb */); 1206 if (mFolderIcon instanceof DropTarget) { 1207 mDragController.removeDropTarget((DropTarget) mFolderIcon); 1208 } 1209 1210 if (newIcon != null) { 1211 // We add the child after removing the folder to prevent both from existing 1212 // at the same time in the CellLayout. We need to add the new item with 1213 // addInScreenFromBind() to ensure that hotseat items are placed correctly. 1214 mLauncher.getWorkspace().addInScreenFromBind(newIcon, mInfo); 1215 1216 // Focus the newly created child 1217 newIcon.requestFocus(); 1218 } 1219 } 1220 } 1221 }; 1222 View finalChild = mContent.getLastItem(); 1223 if (finalChild != null) { 1224 mFolderIcon.performDestroyAnimation(finalChild, onCompleteRunnable); 1225 } else { 1226 onCompleteRunnable.run(); 1227 } 1228 mDestroyed = true; 1229 } 1230 1231 public boolean isDestroyed() { 1232 return mDestroyed; 1233 } 1234 1235 // This method keeps track of the first and last item in the folder for the purposes 1236 // of keyboard focus 1237 public void updateTextViewFocus() { 1238 final View firstChild = mContent.getFirstItem(); 1239 final View lastChild = mContent.getLastItem(); 1240 if (firstChild != null && lastChild != null) { 1241 mFolderName.setNextFocusDownId(lastChild.getId()); 1242 mFolderName.setNextFocusRightId(lastChild.getId()); 1243 mFolderName.setNextFocusLeftId(lastChild.getId()); 1244 mFolderName.setNextFocusUpId(lastChild.getId()); 1245 // Hitting TAB from the folder name wraps around to the first item on the current 1246 // folder page, and hitting SHIFT+TAB from that item wraps back to the folder name. 1247 mFolderName.setNextFocusForwardId(firstChild.getId()); 1248 // When clicking off the folder when editing the name, this Folder gains focus. When 1249 // pressing an arrow key from that state, give the focus to the first item. 1250 this.setNextFocusDownId(firstChild.getId()); 1251 this.setNextFocusRightId(firstChild.getId()); 1252 this.setNextFocusLeftId(firstChild.getId()); 1253 this.setNextFocusUpId(firstChild.getId()); 1254 // When pressing shift+tab in the above state, give the focus to the last item. 1255 setOnKeyListener(new OnKeyListener() { 1256 @Override 1257 public boolean onKey(View v, int keyCode, KeyEvent event) { 1258 boolean isShiftPlusTab = keyCode == KeyEvent.KEYCODE_TAB && 1259 event.hasModifiers(KeyEvent.META_SHIFT_ON); 1260 if (isShiftPlusTab && Folder.this.isFocused()) { 1261 return lastChild.requestFocus(); 1262 } 1263 return false; 1264 } 1265 }); 1266 } 1267 } 1268 1269 public void onDrop(DragObject d) { 1270 Runnable cleanUpRunnable = null; 1271 1272 // If we are coming from All Apps space, we defer removing the extra empty screen 1273 // until the folder closes 1274 if (d.dragSource != mLauncher.getWorkspace() && !(d.dragSource instanceof Folder)) { 1275 cleanUpRunnable = new Runnable() { 1276 @Override 1277 public void run() { 1278 mLauncher.exitSpringLoadedDragModeDelayed(true, 1279 Launcher.EXIT_SPRINGLOADED_MODE_SHORT_TIMEOUT, 1280 null); 1281 } 1282 }; 1283 } 1284 1285 // If the icon was dropped while the page was being scrolled, we need to compute 1286 // the target location again such that the icon is placed of the final page. 1287 if (!mContent.rankOnCurrentPage(mEmptyCellRank)) { 1288 // Reorder again. 1289 mTargetRank = getTargetRank(d, null); 1290 1291 // Rearrange items immediately. 1292 mReorderAlarmListener.onAlarm(mReorderAlarm); 1293 1294 mOnScrollHintAlarm.cancelAlarm(); 1295 mScrollPauseAlarm.cancelAlarm(); 1296 } 1297 mContent.completePendingPageChanges(); 1298 1299 View currentDragView; 1300 final ShortcutInfo si; 1301 if (d.dragInfo instanceof AppInfo) { 1302 // Came from all apps -- make a copy. 1303 si = ((AppInfo) d.dragInfo).makeShortcut(); 1304 } else { 1305 // ShortcutInfo 1306 si = (ShortcutInfo) d.dragInfo; 1307 } 1308 if (mIsExternalDrag) { 1309 currentDragView = mContent.createAndAddViewForRank(si, mEmptyCellRank); 1310 // Actually move the item in the database if it was an external drag. Call this 1311 // before creating the view, so that ShortcutInfo is updated appropriately. 1312 mLauncher.getModelWriter().addOrMoveItemInDatabase( 1313 si, mInfo.id, 0, si.cellX, si.cellY); 1314 1315 // We only need to update the locations if it doesn't get handled in #onDropCompleted. 1316 if (d.dragSource != this) { 1317 updateItemLocationsInDatabaseBatch(); 1318 } 1319 mIsExternalDrag = false; 1320 } else { 1321 currentDragView = mCurrentDragView; 1322 mContent.addViewForRank(currentDragView, si, mEmptyCellRank); 1323 } 1324 1325 if (d.dragView.hasDrawn()) { 1326 1327 // Temporarily reset the scale such that the animation target gets calculated correctly. 1328 float scaleX = getScaleX(); 1329 float scaleY = getScaleY(); 1330 setScaleX(1.0f); 1331 setScaleY(1.0f); 1332 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, currentDragView, 1333 cleanUpRunnable, null); 1334 setScaleX(scaleX); 1335 setScaleY(scaleY); 1336 } else { 1337 d.deferDragViewCleanupPostAnimation = false; 1338 currentDragView.setVisibility(VISIBLE); 1339 } 1340 mItemsInvalidated = true; 1341 rearrangeChildren(); 1342 1343 // Temporarily suppress the listener, as we did all the work already here. 1344 try (SuppressInfoChanges s = new SuppressInfoChanges()) { 1345 mInfo.add(si, false); 1346 } 1347 1348 // Clear the drag info, as it is no longer being dragged. 1349 mDragInProgress = false; 1350 1351 if (mContent.getPageCount() > 1) { 1352 // The animation has already been shown while opening the folder. 1353 mInfo.setOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION, true, mLauncher.getModelWriter()); 1354 } 1355 1356 if (d.stateAnnouncer != null) { 1357 d.stateAnnouncer.completeAction(R.string.item_moved); 1358 } 1359 } 1360 1361 // This is used so the item doesn't immediately appear in the folder when added. In one case 1362 // we need to create the illusion that the item isn't added back to the folder yet, to 1363 // to correspond to the animation of the icon back into the folder. This is 1364 public void hideItem(ShortcutInfo info) { 1365 View v = getViewForInfo(info); 1366 v.setVisibility(INVISIBLE); 1367 } 1368 public void showItem(ShortcutInfo info) { 1369 View v = getViewForInfo(info); 1370 v.setVisibility(VISIBLE); 1371 } 1372 1373 @Override 1374 public void onAdd(ShortcutInfo item) { 1375 mContent.createAndAddViewForRank(item, mContent.allocateRankForNewItem()); 1376 mItemsInvalidated = true; 1377 mLauncher.getModelWriter().addOrMoveItemInDatabase( 1378 item, mInfo.id, 0, item.cellX, item.cellY); 1379 } 1380 1381 public void onRemove(ShortcutInfo item) { 1382 mItemsInvalidated = true; 1383 View v = getViewForInfo(item); 1384 mContent.removeItem(v); 1385 if (mState == STATE_ANIMATING) { 1386 mRearrangeOnClose = true; 1387 } else { 1388 rearrangeChildren(); 1389 } 1390 if (getItemCount() <= 1) { 1391 if (mIsOpen) { 1392 close(true); 1393 } else { 1394 replaceFolderWithFinalItem(); 1395 } 1396 } 1397 } 1398 1399 private View getViewForInfo(final ShortcutInfo item) { 1400 return mContent.iterateOverItems(new ItemOperator() { 1401 1402 @Override 1403 public boolean evaluate(ItemInfo info, View view) { 1404 return info == item; 1405 } 1406 }); 1407 } 1408 1409 @Override 1410 public void onItemsChanged(boolean animate) { 1411 updateTextViewFocus(); 1412 } 1413 1414 @Override 1415 public void prepareAutoAdd() { 1416 close(false); 1417 } 1418 1419 public void onTitleChanged(CharSequence title) { 1420 } 1421 1422 public ArrayList<View> getItemsInReadingOrder() { 1423 if (mItemsInvalidated) { 1424 mItemsInReadingOrder.clear(); 1425 mContent.iterateOverItems(new ItemOperator() { 1426 1427 @Override 1428 public boolean evaluate(ItemInfo info, View view) { 1429 mItemsInReadingOrder.add(view); 1430 return false; 1431 } 1432 }); 1433 mItemsInvalidated = false; 1434 } 1435 return mItemsInReadingOrder; 1436 } 1437 1438 public void onFocusChange(View v, boolean hasFocus) { 1439 if (v == mFolderName) { 1440 if (hasFocus) { 1441 startEditingFolderName(); 1442 } else { 1443 mFolderName.dispatchBackKey(); 1444 } 1445 } 1446 } 1447 1448 @Override 1449 public void getHitRectRelativeToDragLayer(Rect outRect) { 1450 getHitRect(outRect); 1451 outRect.left -= mScrollAreaOffset; 1452 outRect.right += mScrollAreaOffset; 1453 } 1454 1455 @Override 1456 public void fillInLogContainerData(View v, ItemInfo info, Target target, Target targetParent) { 1457 target.gridX = info.cellX; 1458 target.gridY = info.cellY; 1459 target.pageIndex = mContent.getCurrentPage(); 1460 targetParent.containerType = ContainerType.FOLDER; 1461 } 1462 1463 private class OnScrollHintListener implements OnAlarmListener { 1464 1465 private final DragObject mDragObject; 1466 1467 OnScrollHintListener(DragObject object) { 1468 mDragObject = object; 1469 } 1470 1471 /** 1472 * Scroll hint has been shown long enough. Now scroll to appropriate page. 1473 */ 1474 @Override 1475 public void onAlarm(Alarm alarm) { 1476 if (mCurrentScrollDir == SCROLL_LEFT) { 1477 mContent.scrollLeft(); 1478 mScrollHintDir = SCROLL_NONE; 1479 } else if (mCurrentScrollDir == SCROLL_RIGHT) { 1480 mContent.scrollRight(); 1481 mScrollHintDir = SCROLL_NONE; 1482 } else { 1483 // This should not happen 1484 return; 1485 } 1486 mCurrentScrollDir = SCROLL_NONE; 1487 1488 // Pause drag event until the scrolling is finished 1489 mScrollPauseAlarm.setOnAlarmListener(new OnScrollFinishedListener(mDragObject)); 1490 mScrollPauseAlarm.setAlarm(RESCROLL_DELAY); 1491 } 1492 } 1493 1494 private class OnScrollFinishedListener implements OnAlarmListener { 1495 1496 private final DragObject mDragObject; 1497 1498 OnScrollFinishedListener(DragObject object) { 1499 mDragObject = object; 1500 } 1501 1502 /** 1503 * Page scroll is complete. 1504 */ 1505 @Override 1506 public void onAlarm(Alarm alarm) { 1507 // Reorder immediately on page change. 1508 onDragOver(mDragObject, 1); 1509 } 1510 } 1511 1512 // Compares item position based on rank and position giving priority to the rank. 1513 public static final Comparator<ItemInfo> ITEM_POS_COMPARATOR = new Comparator<ItemInfo>() { 1514 1515 @Override 1516 public int compare(ItemInfo lhs, ItemInfo rhs) { 1517 if (lhs.rank != rhs.rank) { 1518 return lhs.rank - rhs.rank; 1519 } else if (lhs.cellY != rhs.cellY) { 1520 return lhs.cellY - rhs.cellY; 1521 } else { 1522 return lhs.cellX - rhs.cellX; 1523 } 1524 } 1525 }; 1526 1527 /** 1528 * Temporary resource held while we don't want to handle info changes 1529 */ 1530 private class SuppressInfoChanges implements AutoCloseable { 1531 1532 SuppressInfoChanges() { 1533 mInfo.removeListener(Folder.this); 1534 } 1535 1536 @Override 1537 public void close() { 1538 mInfo.addListener(Folder.this); 1539 updateTextViewFocus(); 1540 } 1541 } 1542 1543 /** 1544 * Returns a folder which is already open or null 1545 */ 1546 public static Folder getOpen(Launcher launcher) { 1547 return getOpenView(launcher, TYPE_FOLDER); 1548 } 1549 1550 @Override 1551 public int getLogContainerType() { 1552 return ContainerType.FOLDER; 1553 } 1554} 1555