Folder.java revision c6cf493b07fc7234c2a0a164318fd9aeb02e48f3
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 LauncherModel.updateItemInDatabase(mLauncher, 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 LauncherModel.deleteItemFromDatabase(mLauncher, 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 mFolderIcon.growAndFadeOut(); 539 540 mContent.completePendingPageChanges(); 541 if (!mDragInProgress) { 542 // Open on the first page. 543 mContent.snapToPageImmediately(0); 544 } 545 546 // This is set to true in close(), but isn't reset to false until onDropCompleted(). This 547 // leads to an inconsistent state if you drag out of the folder and drag back in without 548 // dropping. One resulting issue is that replaceFolderWithFinalItem() can be called twice. 549 mDeleteFolderOnDropCompleted = false; 550 551 final Runnable onCompleteRunnable; 552 prepareReveal(); 553 centerAboutIcon(); 554 555 AnimatorSet anim = LauncherAnimUtils.createAnimatorSet(); 556 int width = getPaddingLeft() + getPaddingRight() + mContent.getDesiredWidth(); 557 int height = getFolderHeight(); 558 559 float transX = - 0.075f * (width / 2 - getPivotX()); 560 float transY = - 0.075f * (height / 2 - getPivotY()); 561 setTranslationX(transX); 562 setTranslationY(transY); 563 PropertyValuesHolder tx = PropertyValuesHolder.ofFloat(TRANSLATION_X, transX, 0); 564 PropertyValuesHolder ty = PropertyValuesHolder.ofFloat(TRANSLATION_Y, transY, 0); 565 566 Animator drift = ObjectAnimator.ofPropertyValuesHolder(this, tx, ty); 567 drift.setDuration(mMaterialExpandDuration); 568 drift.setStartDelay(mMaterialExpandStagger); 569 drift.setInterpolator(new LogDecelerateInterpolator(100, 0)); 570 571 int rx = (int) Math.max(Math.max(width - getPivotX(), 0), getPivotX()); 572 int ry = (int) Math.max(Math.max(height - getPivotY(), 0), getPivotY()); 573 float radius = (float) Math.hypot(rx, ry); 574 575 Animator reveal = new CircleRevealOutlineProvider((int) getPivotX(), 576 (int) getPivotY(), 0, radius).createRevealAnimator(this); 577 reveal.setDuration(mMaterialExpandDuration); 578 reveal.setInterpolator(new LogDecelerateInterpolator(100, 0)); 579 580 mContent.setAlpha(0f); 581 Animator iconsAlpha = ObjectAnimator.ofFloat(mContent, "alpha", 0f, 1f); 582 iconsAlpha.setDuration(mMaterialExpandDuration); 583 iconsAlpha.setStartDelay(mMaterialExpandStagger); 584 iconsAlpha.setInterpolator(new AccelerateInterpolator(1.5f)); 585 586 mFooter.setAlpha(0f); 587 Animator textAlpha = ObjectAnimator.ofFloat(mFooter, "alpha", 0f, 1f); 588 textAlpha.setDuration(mMaterialExpandDuration); 589 textAlpha.setStartDelay(mMaterialExpandStagger); 590 textAlpha.setInterpolator(new AccelerateInterpolator(1.5f)); 591 592 anim.play(drift); 593 anim.play(iconsAlpha); 594 anim.play(textAlpha); 595 anim.play(reveal); 596 597 mContent.setLayerType(LAYER_TYPE_HARDWARE, null); 598 mFooter.setLayerType(LAYER_TYPE_HARDWARE, null); 599 onCompleteRunnable = new Runnable() { 600 @Override 601 public void run() { 602 mContent.setLayerType(LAYER_TYPE_NONE, null); 603 mFooter.setLayerType(LAYER_TYPE_NONE, null); 604 mLauncher.getUserEventDispatcher().resetElapsedContainerMillis(); 605 } 606 }; 607 anim.addListener(new AnimatorListenerAdapter() { 608 @Override 609 public void onAnimationStart(Animator animation) { 610 Utilities.sendCustomAccessibilityEvent( 611 Folder.this, 612 AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED, 613 mContent.getAccessibilityDescription()); 614 mState = STATE_ANIMATING; 615 } 616 @Override 617 public void onAnimationEnd(Animator animation) { 618 mState = STATE_OPEN; 619 620 onCompleteRunnable.run(); 621 mContent.setFocusOnFirstChild(); 622 } 623 }); 624 625 // Footer animation 626 if (mContent.getPageCount() > 1 && !mInfo.hasOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION)) { 627 int footerWidth = mContent.getDesiredWidth() 628 - mFooter.getPaddingLeft() - mFooter.getPaddingRight(); 629 630 float textWidth = mFolderName.getPaint().measureText(mFolderName.getText().toString()); 631 float translation = (footerWidth - textWidth) / 2; 632 mFolderName.setTranslationX(mContent.mIsRtl ? -translation : translation); 633 mPageIndicator.prepareEntryAnimation(); 634 635 // Do not update the flag if we are in drag mode. The flag will be updated, when we 636 // actually drop the icon. 637 final boolean updateAnimationFlag = !mDragInProgress; 638 anim.addListener(new AnimatorListenerAdapter() { 639 640 @SuppressLint("InlinedApi") 641 @Override 642 public void onAnimationEnd(Animator animation) { 643 mFolderName.animate().setDuration(FOLDER_NAME_ANIMATION_DURATION) 644 .translationX(0) 645 .setInterpolator(AnimationUtils.loadInterpolator( 646 mLauncher, android.R.interpolator.fast_out_slow_in)); 647 mPageIndicator.playEntryAnimation(); 648 649 if (updateAnimationFlag) { 650 mInfo.setOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION, true, mLauncher); 651 } 652 } 653 }); 654 } else { 655 mFolderName.setTranslationX(0); 656 } 657 658 mPageIndicator.stopAllAnimations(); 659 anim.start(); 660 661 // Make sure the folder picks up the last drag move even if the finger doesn't move. 662 if (mDragController.isDragging()) { 663 mDragController.forceTouchMove(); 664 } 665 666 mContent.verifyVisibleHighResIcons(mContent.getNextPage()); 667 668 // Notify the accessibility manager that this folder "window" has appeared and occluded 669 // the workspace items 670 sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 671 dragLayer.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 672 } 673 674 public void beginExternalDrag() { 675 mEmptyCellRank = mContent.allocateRankForNewItem(); 676 mIsExternalDrag = true; 677 mDragInProgress = true; 678 679 // Since this folder opened by another controller, it might not get onDrop or 680 // onDropComplete. Perform cleanup once drag-n-drop ends. 681 mDragController.addDragListener(this); 682 } 683 684 @Override 685 protected boolean isOfType(int type) { 686 return (type & TYPE_FOLDER) != 0; 687 } 688 689 @Override 690 protected void handleClose(boolean animate) { 691 mIsOpen = false; 692 693 if (isEditingName()) { 694 mFolderName.dispatchBackKey(); 695 } 696 697 if (mFolderIcon != null) { 698 mFolderIcon.shrinkAndFadeIn(animate); 699 } 700 701 if (!(getParent() instanceof DragLayer)) return; 702 DragLayer parent = (DragLayer) getParent(); 703 704 if (animate) { 705 animateClosed(); 706 } else { 707 closeComplete(false); 708 } 709 710 // Notify the accessibility manager that this folder "window" has disappeared and no 711 // longer occludes the workspace items 712 parent.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 713 } 714 715 private void animateClosed() { 716 final ObjectAnimator oa = LauncherAnimUtils.ofViewAlphaAndScale(this, 0, 0.9f, 0.9f); 717 oa.addListener(new AnimatorListenerAdapter() { 718 @Override 719 public void onAnimationEnd(Animator animation) { 720 setLayerType(LAYER_TYPE_NONE, null); 721 closeComplete(true); 722 } 723 @Override 724 public void onAnimationStart(Animator animation) { 725 Utilities.sendCustomAccessibilityEvent( 726 Folder.this, 727 AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED, 728 getContext().getString(R.string.folder_closed)); 729 mState = STATE_ANIMATING; 730 } 731 }); 732 oa.setDuration(mExpandDuration); 733 setLayerType(LAYER_TYPE_HARDWARE, null); 734 oa.start(); 735 } 736 737 private void closeComplete(boolean wasAnimated) { 738 // TODO: Clear all active animations. 739 DragLayer parent = (DragLayer) getParent(); 740 if (parent != null) { 741 parent.removeView(this); 742 } 743 mDragController.removeDropTarget(this); 744 clearFocus(); 745 if (wasAnimated) { 746 mFolderIcon.requestFocus(); 747 } 748 749 if (mRearrangeOnClose) { 750 rearrangeChildren(); 751 mRearrangeOnClose = false; 752 } 753 if (getItemCount() <= 1) { 754 if (!mDragInProgress && !mSuppressFolderDeletion) { 755 replaceFolderWithFinalItem(); 756 } else if (mDragInProgress) { 757 mDeleteFolderOnDropCompleted = true; 758 } 759 } 760 mSuppressFolderDeletion = false; 761 clearDragInfo(); 762 mState = STATE_SMALL; 763 } 764 765 public boolean acceptDrop(DragObject d) { 766 final ItemInfo item = d.dragInfo; 767 final int itemType = item.itemType; 768 return ((itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || 769 itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT || 770 itemType == LauncherSettings.Favorites.ITEM_TYPE_DEEP_SHORTCUT) && 771 !isFull()); 772 } 773 774 public void onDragEnter(DragObject d) { 775 mPrevTargetRank = -1; 776 mOnExitAlarm.cancelAlarm(); 777 // Get the area offset such that the folder only closes if half the drag icon width 778 // is outside the folder area 779 mScrollAreaOffset = d.dragView.getDragRegionWidth() / 2 - d.xOffset; 780 } 781 782 OnAlarmListener mReorderAlarmListener = new OnAlarmListener() { 783 public void onAlarm(Alarm alarm) { 784 mContent.realTimeReorder(mEmptyCellRank, mTargetRank); 785 mEmptyCellRank = mTargetRank; 786 } 787 }; 788 789 public boolean isLayoutRtl() { 790 return (getLayoutDirection() == LAYOUT_DIRECTION_RTL); 791 } 792 793 @Override 794 public void onDragOver(DragObject d) { 795 onDragOver(d, REORDER_DELAY); 796 } 797 798 private int getTargetRank(DragObject d, float[] recycle) { 799 recycle = d.getVisualCenter(recycle); 800 return mContent.findNearestArea( 801 (int) recycle[0] - getPaddingLeft(), (int) recycle[1] - getPaddingTop()); 802 } 803 804 @Thunk void onDragOver(DragObject d, int reorderDelay) { 805 if (mScrollPauseAlarm.alarmPending()) { 806 return; 807 } 808 final float[] r = new float[2]; 809 mTargetRank = getTargetRank(d, r); 810 811 if (mTargetRank != mPrevTargetRank) { 812 mReorderAlarm.cancelAlarm(); 813 mReorderAlarm.setOnAlarmListener(mReorderAlarmListener); 814 mReorderAlarm.setAlarm(REORDER_DELAY); 815 mPrevTargetRank = mTargetRank; 816 817 if (d.stateAnnouncer != null) { 818 d.stateAnnouncer.announce(getContext().getString(R.string.move_to_position, 819 mTargetRank + 1)); 820 } 821 } 822 823 float x = r[0]; 824 int currentPage = mContent.getNextPage(); 825 826 float cellOverlap = mContent.getCurrentCellLayout().getCellWidth() 827 * ICON_OVERSCROLL_WIDTH_FACTOR; 828 boolean isOutsideLeftEdge = x < cellOverlap; 829 boolean isOutsideRightEdge = x > (getWidth() - cellOverlap); 830 831 if (currentPage > 0 && (mContent.mIsRtl ? isOutsideRightEdge : isOutsideLeftEdge)) { 832 showScrollHint(SCROLL_LEFT, d); 833 } else if (currentPage < (mContent.getPageCount() - 1) 834 && (mContent.mIsRtl ? isOutsideLeftEdge : isOutsideRightEdge)) { 835 showScrollHint(SCROLL_RIGHT, d); 836 } else { 837 mOnScrollHintAlarm.cancelAlarm(); 838 if (mScrollHintDir != SCROLL_NONE) { 839 mContent.clearScrollHint(); 840 mScrollHintDir = SCROLL_NONE; 841 } 842 } 843 } 844 845 private void showScrollHint(int direction, DragObject d) { 846 // Show scroll hint on the right 847 if (mScrollHintDir != direction) { 848 mContent.showScrollHint(direction); 849 mScrollHintDir = direction; 850 } 851 852 // Set alarm for when the hint is complete 853 if (!mOnScrollHintAlarm.alarmPending() || mCurrentScrollDir != direction) { 854 mCurrentScrollDir = direction; 855 mOnScrollHintAlarm.cancelAlarm(); 856 mOnScrollHintAlarm.setOnAlarmListener(new OnScrollHintListener(d)); 857 mOnScrollHintAlarm.setAlarm(SCROLL_HINT_DURATION); 858 859 mReorderAlarm.cancelAlarm(); 860 mTargetRank = mEmptyCellRank; 861 } 862 } 863 864 OnAlarmListener mOnExitAlarmListener = new OnAlarmListener() { 865 public void onAlarm(Alarm alarm) { 866 completeDragExit(); 867 } 868 }; 869 870 public void completeDragExit() { 871 if (mIsOpen) { 872 close(true); 873 mRearrangeOnClose = true; 874 } else if (mState == STATE_ANIMATING) { 875 mRearrangeOnClose = true; 876 } else { 877 rearrangeChildren(); 878 clearDragInfo(); 879 } 880 } 881 882 private void clearDragInfo() { 883 mCurrentDragView = null; 884 mIsExternalDrag = false; 885 } 886 887 public void onDragExit(DragObject d) { 888 // We only close the folder if this is a true drag exit, ie. not because 889 // a drop has occurred above the folder. 890 if (!d.dragComplete) { 891 mOnExitAlarm.setOnAlarmListener(mOnExitAlarmListener); 892 mOnExitAlarm.setAlarm(ON_EXIT_CLOSE_DELAY); 893 } 894 mReorderAlarm.cancelAlarm(); 895 896 mOnScrollHintAlarm.cancelAlarm(); 897 mScrollPauseAlarm.cancelAlarm(); 898 if (mScrollHintDir != SCROLL_NONE) { 899 mContent.clearScrollHint(); 900 mScrollHintDir = SCROLL_NONE; 901 } 902 } 903 904 /** 905 * When performing an accessibility drop, onDrop is sent immediately after onDragEnter. So we 906 * need to complete all transient states based on timers. 907 */ 908 @Override 909 public void prepareAccessibilityDrop() { 910 if (mReorderAlarm.alarmPending()) { 911 mReorderAlarm.cancelAlarm(); 912 mReorderAlarmListener.onAlarm(mReorderAlarm); 913 } 914 } 915 916 public void onDropCompleted(final View target, final DragObject d, 917 final boolean isFlingToDelete, final boolean success) { 918 if (mDeferDropAfterUninstall) { 919 Log.d(TAG, "Deferred handling drop because waiting for uninstall."); 920 mDeferredAction = new Runnable() { 921 public void run() { 922 onDropCompleted(target, d, isFlingToDelete, success); 923 mDeferredAction = null; 924 } 925 }; 926 return; 927 } 928 929 boolean beingCalledAfterUninstall = mDeferredAction != null; 930 boolean successfulDrop = 931 success && (!beingCalledAfterUninstall || mUninstallSuccessful); 932 933 if (successfulDrop) { 934 if (mDeleteFolderOnDropCompleted && !mItemAddedBackToSelfViaIcon && target != this) { 935 replaceFolderWithFinalItem(); 936 } 937 } else { 938 // The drag failed, we need to return the item to the folder 939 ShortcutInfo info = (ShortcutInfo) d.dragInfo; 940 View icon = (mCurrentDragView != null && mCurrentDragView.getTag() == info) 941 ? mCurrentDragView : mContent.createNewView(info); 942 ArrayList<View> views = getItemsInReadingOrder(); 943 views.add(info.rank, icon); 944 mContent.arrangeChildren(views, views.size()); 945 mItemsInvalidated = true; 946 947 try (SuppressInfoChanges s = new SuppressInfoChanges()) { 948 mFolderIcon.onDrop(d); 949 } 950 } 951 952 if (target != this) { 953 if (mOnExitAlarm.alarmPending()) { 954 mOnExitAlarm.cancelAlarm(); 955 if (!successfulDrop) { 956 mSuppressFolderDeletion = true; 957 } 958 mScrollPauseAlarm.cancelAlarm(); 959 completeDragExit(); 960 } 961 } 962 963 mDeleteFolderOnDropCompleted = false; 964 mDragInProgress = false; 965 mItemAddedBackToSelfViaIcon = false; 966 mCurrentDragView = null; 967 968 // Reordering may have occured, and we need to save the new item locations. We do this once 969 // at the end to prevent unnecessary database operations. 970 updateItemLocationsInDatabaseBatch(); 971 972 // Use the item count to check for multi-page as the folder UI may not have 973 // been refreshed yet. 974 if (getItemCount() <= mContent.itemsPerPage()) { 975 // Show the animation, next time something is added to the folder. 976 mInfo.setOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION, false, mLauncher); 977 } 978 979 if (!isFlingToDelete) { 980 // Fling to delete already exits spring loaded mode after the animation finishes. 981 mLauncher.exitSpringLoadedDragModeDelayed(successfulDrop, 982 Launcher.EXIT_SPRINGLOADED_MODE_SHORT_TIMEOUT, null); 983 } 984 } 985 986 @Override 987 public void deferCompleteDropAfterUninstallActivity() { 988 mDeferDropAfterUninstall = true; 989 } 990 991 @Override 992 public void onDragObjectRemoved(boolean success) { 993 mDeferDropAfterUninstall = false; 994 mUninstallSuccessful = success; 995 if (mDeferredAction != null) { 996 mDeferredAction.run(); 997 } 998 } 999 1000 @Override 1001 public float getIntrinsicIconScaleFactor() { 1002 return 1f; 1003 } 1004 1005 @Override 1006 public boolean supportsAppInfoDropTarget() { 1007 return true; 1008 } 1009 1010 @Override 1011 public boolean supportsDeleteDropTarget() { 1012 return true; 1013 } 1014 1015 private void updateItemLocationsInDatabaseBatch() { 1016 ArrayList<View> list = getItemsInReadingOrder(); 1017 ArrayList<ItemInfo> items = new ArrayList<ItemInfo>(); 1018 for (int i = 0; i < list.size(); i++) { 1019 View v = list.get(i); 1020 ItemInfo info = (ItemInfo) v.getTag(); 1021 info.rank = i; 1022 items.add(info); 1023 } 1024 1025 LauncherModel.moveItemsInDatabase(mLauncher, items, mInfo.id, 0); 1026 } 1027 1028 public void notifyDrop() { 1029 if (mDragInProgress) { 1030 mItemAddedBackToSelfViaIcon = true; 1031 } 1032 } 1033 1034 public boolean isDropEnabled() { 1035 return true; 1036 } 1037 1038 public boolean isFull() { 1039 return mContent.isFull(); 1040 } 1041 1042 private void centerAboutIcon() { 1043 DeviceProfile grid = mLauncher.getDeviceProfile(); 1044 1045 DragLayer.LayoutParams lp = (DragLayer.LayoutParams) getLayoutParams(); 1046 DragLayer parent = (DragLayer) mLauncher.findViewById(R.id.drag_layer); 1047 int width = getPaddingLeft() + getPaddingRight() + mContent.getDesiredWidth(); 1048 int height = getFolderHeight(); 1049 1050 float scale = parent.getDescendantRectRelativeToSelf(mFolderIcon, sTempRect); 1051 int centerX = sTempRect.centerX(); 1052 int centerY = sTempRect.centerY(); 1053 int centeredLeft = centerX - width / 2; 1054 int centeredTop = centerY - height / 2; 1055 1056 // We need to bound the folder to the currently visible workspace area 1057 mLauncher.getWorkspace().getPageAreaRelativeToDragLayer(sTempRect); 1058 int left = Math.min(Math.max(sTempRect.left, centeredLeft), 1059 sTempRect.right- width); 1060 int top = Math.min(Math.max(sTempRect.top, centeredTop), 1061 sTempRect.bottom - height); 1062 1063 int distFromEdgeOfScreen = mLauncher.getWorkspace().getPaddingLeft() + getPaddingLeft(); 1064 1065 if (grid.isPhone && (grid.availableWidthPx - width) < 4 * distFromEdgeOfScreen) { 1066 // Center the folder if it is very close to being centered anyway, by virtue of 1067 // filling the majority of the viewport. ie. remove it from the uncanny valley 1068 // of centeredness. 1069 left = (grid.availableWidthPx - width) / 2; 1070 } else if (width >= sTempRect.width()) { 1071 // If the folder doesn't fit within the bounds, center it about the desired bounds 1072 left = sTempRect.left + (sTempRect.width() - width) / 2; 1073 } 1074 if (height >= sTempRect.height()) { 1075 // Folder height is greater than page height, center on page 1076 top = sTempRect.top + (sTempRect.height() - height) / 2; 1077 } else { 1078 // Folder height is less than page height, so bound it to the absolute open folder 1079 // bounds if necessary 1080 Rect folderBounds = grid.getAbsoluteOpenFolderBounds(); 1081 left = Math.max(folderBounds.left, Math.min(left, folderBounds.right - width)); 1082 top = Math.max(folderBounds.top, Math.min(top, folderBounds.bottom - height)); 1083 } 1084 1085 int folderPivotX = width / 2 + (centeredLeft - left); 1086 int folderPivotY = height / 2 + (centeredTop - top); 1087 setPivotX(folderPivotX); 1088 setPivotY(folderPivotY); 1089 mFolderIconPivotX = (int) (mFolderIcon.getMeasuredWidth() * 1090 (1.0f * folderPivotX / width)); 1091 mFolderIconPivotY = (int) (mFolderIcon.getMeasuredHeight() * 1092 (1.0f * folderPivotY / height)); 1093 1094 lp.width = width; 1095 lp.height = height; 1096 lp.x = left; 1097 lp.y = top; 1098 } 1099 1100 public float getPivotXForIconAnimation() { 1101 return mFolderIconPivotX; 1102 } 1103 public float getPivotYForIconAnimation() { 1104 return mFolderIconPivotY; 1105 } 1106 1107 private int getContentAreaHeight() { 1108 DeviceProfile grid = mLauncher.getDeviceProfile(); 1109 int maxContentAreaHeight = grid.availableHeightPx 1110 - grid.getTotalWorkspacePadding().y - mFooterHeight; 1111 int height = Math.min(maxContentAreaHeight, 1112 mContent.getDesiredHeight()); 1113 return Math.max(height, MIN_CONTENT_DIMEN); 1114 } 1115 1116 private int getContentAreaWidth() { 1117 return Math.max(mContent.getDesiredWidth(), MIN_CONTENT_DIMEN); 1118 } 1119 1120 private int getFolderHeight() { 1121 return getFolderHeight(getContentAreaHeight()); 1122 } 1123 1124 private int getFolderHeight(int contentAreaHeight) { 1125 return getPaddingTop() + getPaddingBottom() + contentAreaHeight + mFooterHeight; 1126 } 1127 1128 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 1129 int contentWidth = getContentAreaWidth(); 1130 int contentHeight = getContentAreaHeight(); 1131 1132 int contentAreaWidthSpec = MeasureSpec.makeMeasureSpec(contentWidth, MeasureSpec.EXACTLY); 1133 int contentAreaHeightSpec = MeasureSpec.makeMeasureSpec(contentHeight, MeasureSpec.EXACTLY); 1134 1135 mContent.setFixedSize(contentWidth, contentHeight); 1136 mContent.measure(contentAreaWidthSpec, contentAreaHeightSpec); 1137 1138 if (mContent.getChildCount() > 0) { 1139 int cellIconGap = (mContent.getPageAt(0).getCellWidth() 1140 - mLauncher.getDeviceProfile().iconSizePx) / 2; 1141 mFooter.setPadding(mContent.getPaddingLeft() + cellIconGap, 1142 mFooter.getPaddingTop(), 1143 mContent.getPaddingRight() + cellIconGap, 1144 mFooter.getPaddingBottom()); 1145 } 1146 mFooter.measure(contentAreaWidthSpec, 1147 MeasureSpec.makeMeasureSpec(mFooterHeight, MeasureSpec.EXACTLY)); 1148 1149 int folderWidth = getPaddingLeft() + getPaddingRight() + contentWidth; 1150 int folderHeight = getFolderHeight(contentHeight); 1151 setMeasuredDimension(folderWidth, folderHeight); 1152 } 1153 1154 /** 1155 * Rearranges the children based on their rank. 1156 */ 1157 public void rearrangeChildren() { 1158 rearrangeChildren(-1); 1159 } 1160 1161 /** 1162 * Rearranges the children based on their rank. 1163 * @param itemCount if greater than the total children count, empty spaces are left at the end, 1164 * otherwise it is ignored. 1165 */ 1166 public void rearrangeChildren(int itemCount) { 1167 ArrayList<View> views = getItemsInReadingOrder(); 1168 mContent.arrangeChildren(views, Math.max(itemCount, views.size())); 1169 mItemsInvalidated = true; 1170 } 1171 1172 public int getItemCount() { 1173 return mContent.getItemCount(); 1174 } 1175 1176 @Thunk void replaceFolderWithFinalItem() { 1177 // Add the last remaining child to the workspace in place of the folder 1178 Runnable onCompleteRunnable = new Runnable() { 1179 @Override 1180 public void run() { 1181 int itemCount = mInfo.contents.size(); 1182 if (itemCount <= 1) { 1183 View newIcon = null; 1184 1185 if (itemCount == 1) { 1186 // Move the item from the folder to the workspace, in the position of the 1187 // folder 1188 CellLayout cellLayout = mLauncher.getCellLayout(mInfo.container, 1189 mInfo.screenId); 1190 ShortcutInfo finalItem = mInfo.contents.remove(0); 1191 newIcon = mLauncher.createShortcut(cellLayout, finalItem); 1192 LauncherModel.addOrMoveItemInDatabase(mLauncher, finalItem, mInfo.container, 1193 mInfo.screenId, mInfo.cellX, mInfo.cellY); 1194 } 1195 1196 // Remove the folder 1197 mLauncher.removeItem(mFolderIcon, mInfo, true /* deleteFromDb */); 1198 if (mFolderIcon instanceof DropTarget) { 1199 mDragController.removeDropTarget((DropTarget) mFolderIcon); 1200 } 1201 1202 if (newIcon != null) { 1203 // We add the child after removing the folder to prevent both from existing 1204 // at the same time in the CellLayout. We need to add the new item with 1205 // addInScreenFromBind() to ensure that hotseat items are placed correctly. 1206 mLauncher.getWorkspace().addInScreenFromBind(newIcon, mInfo); 1207 1208 // Focus the newly created child 1209 newIcon.requestFocus(); 1210 } 1211 } 1212 } 1213 }; 1214 View finalChild = mContent.getLastItem(); 1215 if (finalChild != null) { 1216 mFolderIcon.performDestroyAnimation(finalChild, onCompleteRunnable); 1217 } else { 1218 onCompleteRunnable.run(); 1219 } 1220 mDestroyed = true; 1221 } 1222 1223 public boolean isDestroyed() { 1224 return mDestroyed; 1225 } 1226 1227 // This method keeps track of the first and last item in the folder for the purposes 1228 // of keyboard focus 1229 public void updateTextViewFocus() { 1230 final View firstChild = mContent.getFirstItem(); 1231 final View lastChild = mContent.getLastItem(); 1232 if (firstChild != null && lastChild != null) { 1233 mFolderName.setNextFocusDownId(lastChild.getId()); 1234 mFolderName.setNextFocusRightId(lastChild.getId()); 1235 mFolderName.setNextFocusLeftId(lastChild.getId()); 1236 mFolderName.setNextFocusUpId(lastChild.getId()); 1237 // Hitting TAB from the folder name wraps around to the first item on the current 1238 // folder page, and hitting SHIFT+TAB from that item wraps back to the folder name. 1239 mFolderName.setNextFocusForwardId(firstChild.getId()); 1240 // When clicking off the folder when editing the name, this Folder gains focus. When 1241 // pressing an arrow key from that state, give the focus to the first item. 1242 this.setNextFocusDownId(firstChild.getId()); 1243 this.setNextFocusRightId(firstChild.getId()); 1244 this.setNextFocusLeftId(firstChild.getId()); 1245 this.setNextFocusUpId(firstChild.getId()); 1246 // When pressing shift+tab in the above state, give the focus to the last item. 1247 setOnKeyListener(new OnKeyListener() { 1248 @Override 1249 public boolean onKey(View v, int keyCode, KeyEvent event) { 1250 boolean isShiftPlusTab = keyCode == KeyEvent.KEYCODE_TAB && 1251 event.hasModifiers(KeyEvent.META_SHIFT_ON); 1252 if (isShiftPlusTab && Folder.this.isFocused()) { 1253 return lastChild.requestFocus(); 1254 } 1255 return false; 1256 } 1257 }); 1258 } 1259 } 1260 1261 public void onDrop(DragObject d) { 1262 Runnable cleanUpRunnable = null; 1263 1264 // If we are coming from All Apps space, we defer removing the extra empty screen 1265 // until the folder closes 1266 if (d.dragSource != mLauncher.getWorkspace() && !(d.dragSource instanceof Folder)) { 1267 cleanUpRunnable = new Runnable() { 1268 @Override 1269 public void run() { 1270 mLauncher.exitSpringLoadedDragModeDelayed(true, 1271 Launcher.EXIT_SPRINGLOADED_MODE_SHORT_TIMEOUT, 1272 null); 1273 } 1274 }; 1275 } 1276 1277 // If the icon was dropped while the page was being scrolled, we need to compute 1278 // the target location again such that the icon is placed of the final page. 1279 if (!mContent.rankOnCurrentPage(mEmptyCellRank)) { 1280 // Reorder again. 1281 mTargetRank = getTargetRank(d, null); 1282 1283 // Rearrange items immediately. 1284 mReorderAlarmListener.onAlarm(mReorderAlarm); 1285 1286 mOnScrollHintAlarm.cancelAlarm(); 1287 mScrollPauseAlarm.cancelAlarm(); 1288 } 1289 mContent.completePendingPageChanges(); 1290 1291 View currentDragView; 1292 final ShortcutInfo si; 1293 if (d.dragInfo instanceof AppInfo) { 1294 // Came from all apps -- make a copy. 1295 si = ((AppInfo) d.dragInfo).makeShortcut(); 1296 } else { 1297 // ShortcutInfo 1298 si = (ShortcutInfo) d.dragInfo; 1299 } 1300 if (mIsExternalDrag) { 1301 currentDragView = mContent.createAndAddViewForRank(si, mEmptyCellRank); 1302 // Actually move the item in the database if it was an external drag. Call this 1303 // before creating the view, so that ShortcutInfo is updated appropriately. 1304 LauncherModel.addOrMoveItemInDatabase( 1305 mLauncher, si, mInfo.id, 0, si.cellX, si.cellY); 1306 1307 // We only need to update the locations if it doesn't get handled in #onDropCompleted. 1308 if (d.dragSource != this) { 1309 updateItemLocationsInDatabaseBatch(); 1310 } 1311 mIsExternalDrag = false; 1312 } else { 1313 currentDragView = mCurrentDragView; 1314 mContent.addViewForRank(currentDragView, si, mEmptyCellRank); 1315 } 1316 1317 if (d.dragView.hasDrawn()) { 1318 1319 // Temporarily reset the scale such that the animation target gets calculated correctly. 1320 float scaleX = getScaleX(); 1321 float scaleY = getScaleY(); 1322 setScaleX(1.0f); 1323 setScaleY(1.0f); 1324 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, currentDragView, 1325 cleanUpRunnable, null); 1326 setScaleX(scaleX); 1327 setScaleY(scaleY); 1328 } else { 1329 d.deferDragViewCleanupPostAnimation = false; 1330 currentDragView.setVisibility(VISIBLE); 1331 } 1332 mItemsInvalidated = true; 1333 rearrangeChildren(); 1334 1335 // Temporarily suppress the listener, as we did all the work already here. 1336 try (SuppressInfoChanges s = new SuppressInfoChanges()) { 1337 mInfo.add(si, false); 1338 } 1339 1340 // Clear the drag info, as it is no longer being dragged. 1341 mDragInProgress = false; 1342 1343 if (mContent.getPageCount() > 1) { 1344 // The animation has already been shown while opening the folder. 1345 mInfo.setOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION, true, mLauncher); 1346 } 1347 1348 if (d.stateAnnouncer != null) { 1349 d.stateAnnouncer.completeAction(R.string.item_moved); 1350 } 1351 } 1352 1353 // This is used so the item doesn't immediately appear in the folder when added. In one case 1354 // we need to create the illusion that the item isn't added back to the folder yet, to 1355 // to correspond to the animation of the icon back into the folder. This is 1356 public void hideItem(ShortcutInfo info) { 1357 View v = getViewForInfo(info); 1358 v.setVisibility(INVISIBLE); 1359 } 1360 public void showItem(ShortcutInfo info) { 1361 View v = getViewForInfo(info); 1362 v.setVisibility(VISIBLE); 1363 } 1364 1365 @Override 1366 public void onAdd(ShortcutInfo item) { 1367 mContent.createAndAddViewForRank(item, mContent.allocateRankForNewItem()); 1368 mItemsInvalidated = true; 1369 LauncherModel.addOrMoveItemInDatabase( 1370 mLauncher, item, mInfo.id, 0, item.cellX, item.cellY); 1371 } 1372 1373 public void onRemove(ShortcutInfo item) { 1374 mItemsInvalidated = true; 1375 View v = getViewForInfo(item); 1376 mContent.removeItem(v); 1377 if (mState == STATE_ANIMATING) { 1378 mRearrangeOnClose = true; 1379 } else { 1380 rearrangeChildren(); 1381 } 1382 if (getItemCount() <= 1) { 1383 if (mIsOpen) { 1384 close(true); 1385 } else { 1386 replaceFolderWithFinalItem(); 1387 } 1388 } 1389 } 1390 1391 private View getViewForInfo(final ShortcutInfo item) { 1392 return mContent.iterateOverItems(new ItemOperator() { 1393 1394 @Override 1395 public boolean evaluate(ItemInfo info, View view) { 1396 return info == item; 1397 } 1398 }); 1399 } 1400 1401 @Override 1402 public void onItemsChanged(boolean animate) { 1403 updateTextViewFocus(); 1404 } 1405 1406 public void onTitleChanged(CharSequence title) { 1407 } 1408 1409 public ArrayList<View> getItemsInReadingOrder() { 1410 if (mItemsInvalidated) { 1411 mItemsInReadingOrder.clear(); 1412 mContent.iterateOverItems(new ItemOperator() { 1413 1414 @Override 1415 public boolean evaluate(ItemInfo info, View view) { 1416 mItemsInReadingOrder.add(view); 1417 return false; 1418 } 1419 }); 1420 mItemsInvalidated = false; 1421 } 1422 return mItemsInReadingOrder; 1423 } 1424 1425 public void onFocusChange(View v, boolean hasFocus) { 1426 if (v == mFolderName) { 1427 if (hasFocus) { 1428 startEditingFolderName(); 1429 } else { 1430 mFolderName.dispatchBackKey(); 1431 } 1432 } 1433 } 1434 1435 @Override 1436 public void getHitRectRelativeToDragLayer(Rect outRect) { 1437 getHitRect(outRect); 1438 outRect.left -= mScrollAreaOffset; 1439 outRect.right += mScrollAreaOffset; 1440 } 1441 1442 @Override 1443 public void fillInLogContainerData(View v, ItemInfo info, Target target, Target targetParent) { 1444 target.gridX = info.cellX; 1445 target.gridY = info.cellY; 1446 target.pageIndex = mContent.getCurrentPage(); 1447 targetParent.containerType = ContainerType.FOLDER; 1448 } 1449 1450 private class OnScrollHintListener implements OnAlarmListener { 1451 1452 private final DragObject mDragObject; 1453 1454 OnScrollHintListener(DragObject object) { 1455 mDragObject = object; 1456 } 1457 1458 /** 1459 * Scroll hint has been shown long enough. Now scroll to appropriate page. 1460 */ 1461 @Override 1462 public void onAlarm(Alarm alarm) { 1463 if (mCurrentScrollDir == SCROLL_LEFT) { 1464 mContent.scrollLeft(); 1465 mScrollHintDir = SCROLL_NONE; 1466 } else if (mCurrentScrollDir == SCROLL_RIGHT) { 1467 mContent.scrollRight(); 1468 mScrollHintDir = SCROLL_NONE; 1469 } else { 1470 // This should not happen 1471 return; 1472 } 1473 mCurrentScrollDir = SCROLL_NONE; 1474 1475 // Pause drag event until the scrolling is finished 1476 mScrollPauseAlarm.setOnAlarmListener(new OnScrollFinishedListener(mDragObject)); 1477 mScrollPauseAlarm.setAlarm(RESCROLL_DELAY); 1478 } 1479 } 1480 1481 private class OnScrollFinishedListener implements OnAlarmListener { 1482 1483 private final DragObject mDragObject; 1484 1485 OnScrollFinishedListener(DragObject object) { 1486 mDragObject = object; 1487 } 1488 1489 /** 1490 * Page scroll is complete. 1491 */ 1492 @Override 1493 public void onAlarm(Alarm alarm) { 1494 // Reorder immediately on page change. 1495 onDragOver(mDragObject, 1); 1496 } 1497 } 1498 1499 // Compares item position based on rank and position giving priority to the rank. 1500 public static final Comparator<ItemInfo> ITEM_POS_COMPARATOR = new Comparator<ItemInfo>() { 1501 1502 @Override 1503 public int compare(ItemInfo lhs, ItemInfo rhs) { 1504 if (lhs.rank != rhs.rank) { 1505 return lhs.rank - rhs.rank; 1506 } else if (lhs.cellY != rhs.cellY) { 1507 return lhs.cellY - rhs.cellY; 1508 } else { 1509 return lhs.cellX - rhs.cellX; 1510 } 1511 } 1512 }; 1513 1514 /** 1515 * Temporary resource held while we don't want to handle info changes 1516 */ 1517 private class SuppressInfoChanges implements AutoCloseable { 1518 1519 SuppressInfoChanges() { 1520 mInfo.removeListener(Folder.this); 1521 } 1522 1523 @Override 1524 public void close() { 1525 mInfo.addListener(Folder.this); 1526 updateTextViewFocus(); 1527 } 1528 } 1529 1530 /** 1531 * Returns a folder which is already open or null 1532 */ 1533 public static Folder getOpen(Launcher launcher) { 1534 return getOpenView(launcher, TYPE_FOLDER); 1535 } 1536 1537 @Override 1538 public int getLogContainerType() { 1539 return ContainerType.FOLDER; 1540 } 1541} 1542