Folder.java revision 3f8864069be20d14debacddee610062f3feae5a1
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.annotation.TargetApi; 26import android.content.Context; 27import android.content.res.Resources; 28import android.graphics.PointF; 29import android.graphics.Rect; 30import android.os.Build; 31import android.text.InputType; 32import android.text.Selection; 33import android.text.Spannable; 34import android.util.AttributeSet; 35import android.util.Log; 36import android.view.ActionMode; 37import android.view.FocusFinder; 38import android.view.KeyEvent; 39import android.view.Menu; 40import android.view.MenuItem; 41import android.view.MotionEvent; 42import android.view.View; 43import android.view.ViewDebug; 44import android.view.accessibility.AccessibilityEvent; 45import android.view.animation.AccelerateInterpolator; 46import android.view.animation.AnimationUtils; 47import android.view.inputmethod.EditorInfo; 48import android.view.inputmethod.InputMethodManager; 49import android.widget.LinearLayout; 50import android.widget.TextView; 51 52import com.android.launcher3.Alarm; 53import com.android.launcher3.AppInfo; 54import com.android.launcher3.BubbleTextView; 55import com.android.launcher3.CellLayout; 56import com.android.launcher3.DeviceProfile; 57import com.android.launcher3.DragSource; 58import com.android.launcher3.DropTarget; 59import com.android.launcher3.ExtendedEditText; 60import com.android.launcher3.FolderInfo; 61import com.android.launcher3.FolderInfo.FolderListener; 62import com.android.launcher3.ItemInfo; 63import com.android.launcher3.Launcher; 64import com.android.launcher3.LauncherAnimUtils; 65import com.android.launcher3.LauncherModel; 66import com.android.launcher3.LauncherSettings; 67import com.android.launcher3.LogDecelerateInterpolator; 68import com.android.launcher3.OnAlarmListener; 69import com.android.launcher3.R; 70import com.android.launcher3.ShortcutInfo; 71import com.android.launcher3.UninstallDropTarget.DropTargetSource; 72import com.android.launcher3.Utilities; 73import com.android.launcher3.Workspace.ItemOperator; 74import com.android.launcher3.accessibility.AccessibileDragListenerAdapter; 75import com.android.launcher3.config.FeatureFlags; 76import com.android.launcher3.dragndrop.DragController; 77import com.android.launcher3.dragndrop.DragController.DragListener; 78import com.android.launcher3.dragndrop.DragLayer; 79import com.android.launcher3.dragndrop.DragOptions; 80import com.android.launcher3.pageindicators.PageIndicatorDots; 81import com.android.launcher3.shortcuts.DeepShortcutsContainer; 82import com.android.launcher3.userevent.nano.LauncherLogProto; 83import com.android.launcher3.userevent.nano.LauncherLogProto.Target; 84import com.android.launcher3.util.CircleRevealOutlineProvider; 85import com.android.launcher3.util.Thunk; 86 87import java.util.ArrayList; 88import java.util.Collections; 89import java.util.Comparator; 90 91/** 92 * Represents a set of icons chosen by the user or generated by the system. 93 */ 94public class Folder extends LinearLayout implements DragSource, View.OnClickListener, 95 View.OnLongClickListener, DropTarget, FolderListener, TextView.OnEditorActionListener, 96 View.OnFocusChangeListener, DragListener, DropTargetSource { 97 private static final String TAG = "Launcher.Folder"; 98 99 /** 100 * We avoid measuring {@link #mContent} with a 0 width or height, as this 101 * results in CellLayout being measured as UNSPECIFIED, which it does not support. 102 */ 103 private static final int MIN_CONTENT_DIMEN = 5; 104 105 static final int STATE_NONE = -1; 106 static final int STATE_SMALL = 0; 107 static final int STATE_ANIMATING = 1; 108 static final int STATE_OPEN = 2; 109 110 /** 111 * Time for which the scroll hint is shown before automatically changing page. 112 */ 113 public static final int SCROLL_HINT_DURATION = DragController.SCROLL_DELAY; 114 115 /** 116 * Fraction of icon width which behave as scroll region. 117 */ 118 private static final float ICON_OVERSCROLL_WIDTH_FACTOR = 0.45f; 119 120 private static final int FOLDER_NAME_ANIMATION_DURATION = 633; 121 122 private static final int REORDER_DELAY = 250; 123 private static final int ON_EXIT_CLOSE_DELAY = 400; 124 private static final Rect sTempRect = new Rect(); 125 126 private static String sDefaultFolderName; 127 private static String sHintText; 128 129 private final Alarm mReorderAlarm = new Alarm(); 130 private final Alarm mOnExitAlarm = new Alarm(); 131 private final Alarm mOnScrollHintAlarm = new Alarm(); 132 @Thunk final Alarm mScrollPauseAlarm = new Alarm(); 133 134 @Thunk final ArrayList<View> mItemsInReadingOrder = new ArrayList<View>(); 135 136 private final int mExpandDuration; 137 private final int mMaterialExpandDuration; 138 private final int mMaterialExpandStagger; 139 140 private final InputMethodManager mInputMethodManager; 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 = DragController.SCROLL_NONE; 190 @Thunk int mCurrentScrollDir = DragController.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 mInputMethodManager = (InputMethodManager) 202 getContext().getSystemService(Context.INPUT_METHOD_SERVICE); 203 204 Resources res = getResources(); 205 mExpandDuration = res.getInteger(R.integer.config_folderExpandDuration); 206 mMaterialExpandDuration = res.getInteger(R.integer.config_materialFolderExpandDuration); 207 mMaterialExpandStagger = res.getInteger(R.integer.config_materialFolderExpandStagger); 208 209 if (sDefaultFolderName == null) { 210 sDefaultFolderName = res.getString(R.string.folder_name); 211 } 212 if (sHintText == null) { 213 sHintText = res.getString(R.string.folder_hint_text); 214 } 215 mLauncher = (Launcher) context; 216 // We need this view to be focusable in touch mode so that when text editing of the folder 217 // name is complete, we have something to focus on, thus hiding the cursor and giving 218 // reliable behavior when clicking the text field (since it will always gain focus on click). 219 setFocusableInTouchMode(true); 220 } 221 222 @Override 223 protected void onFinishInflate() { 224 super.onFinishInflate(); 225 mContent = (FolderPagedView) findViewById(R.id.folder_content); 226 mContent.setFolder(this); 227 228 mPageIndicator = (PageIndicatorDots) findViewById(R.id.folder_page_indicator); 229 mFolderName = (ExtendedEditText) findViewById(R.id.folder_name); 230 mFolderName.setOnBackKeyListener(new ExtendedEditText.OnBackKeyListener() { 231 @Override 232 public boolean onBackKey() { 233 // Close the activity on back key press 234 doneEditingFolderName(true); 235 return false; 236 } 237 }); 238 mFolderName.setOnFocusChangeListener(this); 239 240 if (!Utilities.ATLEAST_MARSHMALLOW) { 241 // We disable action mode in older OSes where floating selection menu is not yet 242 // available. 243 mFolderName.setCustomSelectionActionModeCallback(new ActionMode.Callback() { 244 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 245 return false; 246 } 247 248 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 249 return false; 250 } 251 252 public void onDestroyActionMode(ActionMode mode) { 253 } 254 255 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 256 return false; 257 } 258 }); 259 } 260 mFolderName.setOnEditorActionListener(this); 261 mFolderName.setSelectAllOnFocus(true); 262 mFolderName.setInputType(mFolderName.getInputType() | 263 InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS | InputType.TYPE_TEXT_FLAG_CAP_WORDS); 264 265 mFooter = findViewById(R.id.folder_footer); 266 267 // We find out how tall footer wants to be (it is set to wrap_content), so that 268 // we can allocate the appropriate amount of space for it. 269 int measureSpec = MeasureSpec.UNSPECIFIED; 270 mFooter.measure(measureSpec, measureSpec); 271 mFooterHeight = mFooter.getMeasuredHeight(); 272 } 273 274 public void onClick(View v) { 275 Object tag = v.getTag(); 276 if (tag instanceof ShortcutInfo) { 277 mLauncher.onClick(v); 278 } 279 } 280 281 public boolean onLongClick(View v) { 282 // Return if global dragging is not enabled 283 if (!mLauncher.isDraggingEnabled()) return true; 284 DragOptions dragOptions = new DragOptions(); 285 if (v instanceof BubbleTextView) { 286 BubbleTextView icon = (BubbleTextView) v; 287 if (icon.hasDeepShortcuts()) { 288 DeepShortcutsContainer dsc = DeepShortcutsContainer.showForIcon(icon); 289 if (dsc != null) { 290 dragOptions.deferDragCondition = dsc.createDeferDragCondition(null); 291 } 292 } 293 } 294 return startDrag(v, dragOptions); 295 } 296 297 public boolean startDrag(View v, DragOptions options) { 298 Object tag = v.getTag(); 299 if (tag instanceof ShortcutInfo) { 300 ShortcutInfo item = (ShortcutInfo) tag; 301 if (!v.isInTouchMode()) { 302 return false; 303 } 304 305 mEmptyCellRank = item.rank; 306 mCurrentDragView = v; 307 308 mDragController.addDragListener(this); 309 if (options.isAccessibleDrag) { 310 mDragController.addDragListener(new AccessibileDragListenerAdapter( 311 mContent, CellLayout.FOLDER_ACCESSIBILITY_DRAG) { 312 313 @Override 314 protected void enableAccessibleDrag(boolean enable) { 315 super.enableAccessibleDrag(enable); 316 mFooter.setImportantForAccessibility(enable 317 ? IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS 318 : IMPORTANT_FOR_ACCESSIBILITY_AUTO); 319 } 320 }); 321 } 322 323 mLauncher.getWorkspace().beginDragShared(v, this, options); 324 } 325 return true; 326 } 327 328 @Override 329 public void onDragStart(DropTarget.DragObject dragObject, DragOptions options) { 330 if (dragObject.dragSource != this) { 331 return; 332 } 333 334 mContent.removeItem(mCurrentDragView); 335 if (dragObject.dragInfo instanceof ShortcutInfo) { 336 mItemsInvalidated = true; 337 338 // We do not want to get events for the item being removed, as they will get handled 339 // when the drop completes 340 try (SuppressInfoChanges s = new SuppressInfoChanges()) { 341 mInfo.remove((ShortcutInfo) dragObject.dragInfo, true); 342 } 343 } 344 mDragInProgress = true; 345 mItemAddedBackToSelfViaIcon = false; 346 } 347 348 @Override 349 public void onDragEnd() { 350 if (mIsExternalDrag && mDragInProgress) { 351 completeDragExit(); 352 } 353 mDragController.removeDragListener(this); 354 } 355 356 public boolean isEditingName() { 357 return mIsEditingName; 358 } 359 360 public void startEditingFolderName() { 361 post(new Runnable() { 362 @Override 363 public void run() { 364 mFolderName.setHint(""); 365 mIsEditingName = true; 366 } 367 }); 368 } 369 370 public void dismissEditingName() { 371 mInputMethodManager.hideSoftInputFromWindow(getWindowToken(), 0); 372 doneEditingFolderName(true); 373 } 374 375 public void doneEditingFolderName(boolean commit) { 376 mFolderName.setHint(sHintText); 377 // Convert to a string here to ensure that no other state associated with the text field 378 // gets saved. 379 String newTitle = mFolderName.getText().toString(); 380 mInfo.setTitle(newTitle); 381 LauncherModel.updateItemInDatabase(mLauncher, mInfo); 382 383 if (commit) { 384 Utilities.sendCustomAccessibilityEvent( 385 this, AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED, 386 getContext().getString(R.string.folder_renamed, newTitle)); 387 } 388 389 // This ensures that focus is gained every time the field is clicked, which selects all 390 // the text and brings up the soft keyboard if necessary. 391 mFolderName.clearFocus(); 392 393 Selection.setSelection((Spannable) mFolderName.getText(), 0, 0); 394 mIsEditingName = false; 395 } 396 397 public boolean onEditorAction(TextView v, int actionId, KeyEvent event) { 398 if (actionId == EditorInfo.IME_ACTION_DONE) { 399 dismissEditingName(); 400 return true; 401 } 402 return false; 403 } 404 405 public View getEditTextRegion() { 406 return mFolderName; 407 } 408 409 /** 410 * We need to handle touch events to prevent them from falling through to the workspace below. 411 */ 412 @SuppressLint("ClickableViewAccessibility") 413 @Override 414 public boolean onTouchEvent(MotionEvent ev) { 415 return true; 416 } 417 418 public void setDragController(DragController dragController) { 419 mDragController = dragController; 420 } 421 422 public void setFolderIcon(FolderIcon icon) { 423 mFolderIcon = icon; 424 } 425 426 @Override 427 protected void onAttachedToWindow() { 428 // requestFocus() causes the focus onto the folder itself, which doesn't cause visual 429 // effect but the next arrow key can start the keyboard focus inside of the folder, not 430 // the folder itself. 431 requestFocus(); 432 super.onAttachedToWindow(); 433 } 434 435 @Override 436 public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) { 437 // When the folder gets focus, we don't want to announce the list of items. 438 return true; 439 } 440 441 @Override 442 public View focusSearch(int direction) { 443 // When the folder is focused, further focus search should be within the folder contents. 444 return FocusFinder.getInstance().findNextFocus(this, null, direction); 445 } 446 447 /** 448 * @return the FolderInfo object associated with this folder 449 */ 450 public FolderInfo getInfo() { 451 return mInfo; 452 } 453 454 void bind(FolderInfo info) { 455 mInfo = info; 456 ArrayList<ShortcutInfo> children = info.contents; 457 Collections.sort(children, ITEM_POS_COMPARATOR); 458 459 ArrayList<ShortcutInfo> overflow = mContent.bindItems(children); 460 461 // If our folder has too many items we prune them from the list. This is an issue 462 // when upgrading from the old Folders implementation which could contain an unlimited 463 // number of items. 464 // TODO: Remove this, as with multi-page folders, there will never be any overflow 465 for (ShortcutInfo item: overflow) { 466 mInfo.remove(item, false); 467 LauncherModel.deleteItemFromDatabase(mLauncher, item); 468 } 469 470 DragLayer.LayoutParams lp = (DragLayer.LayoutParams) getLayoutParams(); 471 if (lp == null) { 472 lp = new DragLayer.LayoutParams(0, 0); 473 lp.customPosition = true; 474 setLayoutParams(lp); 475 } 476 centerAboutIcon(); 477 478 mItemsInvalidated = true; 479 updateTextViewFocus(); 480 mInfo.addListener(this); 481 482 if (!sDefaultFolderName.contentEquals(mInfo.title)) { 483 mFolderName.setText(mInfo.title); 484 } else { 485 mFolderName.setText(""); 486 } 487 488 // In case any children didn't come across during loading, clean up the folder accordingly 489 mFolderIcon.post(new Runnable() { 490 public void run() { 491 if (getItemCount() <= 1) { 492 replaceFolderWithFinalItem(); 493 } 494 } 495 }); 496 } 497 498 /** 499 * Creates a new UserFolder, inflated from R.layout.user_folder. 500 * 501 * @param launcher The main activity. 502 * 503 * @return A new UserFolder. 504 */ 505 @SuppressLint("InflateParams") 506 static Folder fromXml(Launcher launcher) { 507 return (Folder) launcher.getLayoutInflater().inflate( 508 FeatureFlags.LAUNCHER3_DISABLE_ICON_NORMALIZATION 509 ? R.layout.user_folder : R.layout.user_folder_icon_normalized, null); 510 } 511 512 /** 513 * This method is intended to make the UserFolder to be visually identical in size and position 514 * to its associated FolderIcon. This allows for a seamless transition into the expanded state. 515 */ 516 private void positionAndSizeAsIcon() { 517 if (!(getParent() instanceof DragLayer)) return; 518 setScaleX(0.8f); 519 setScaleY(0.8f); 520 setAlpha(0f); 521 mState = STATE_SMALL; 522 } 523 524 private void prepareReveal() { 525 setScaleX(1f); 526 setScaleY(1f); 527 setAlpha(1f); 528 mState = STATE_SMALL; 529 } 530 531 public void animateOpen() { 532 if (!(getParent() instanceof DragLayer)) return; 533 534 mContent.completePendingPageChanges(); 535 if (!mDragInProgress) { 536 // Open on the first page. 537 mContent.snapToPageImmediately(0); 538 } 539 540 // This is set to true in close(), but isn't reset to false until onDropCompleted(). This 541 // leads to an inconsistent state if you drag out of the folder and drag back in without 542 // dropping. One resulting issue is that replaceFolderWithFinalItem() can be called twice. 543 mDeleteFolderOnDropCompleted = false; 544 545 Animator openFolderAnim = null; 546 final Runnable onCompleteRunnable; 547 if (!Utilities.ATLEAST_LOLLIPOP) { 548 positionAndSizeAsIcon(); 549 centerAboutIcon(); 550 551 final ObjectAnimator oa = LauncherAnimUtils.ofViewAlphaAndScale(this, 1, 1, 1); 552 oa.setDuration(mExpandDuration); 553 openFolderAnim = oa; 554 555 setLayerType(LAYER_TYPE_HARDWARE, null); 556 onCompleteRunnable = new Runnable() { 557 @Override 558 public void run() { 559 setLayerType(LAYER_TYPE_NONE, null); 560 } 561 }; 562 } else { 563 prepareReveal(); 564 centerAboutIcon(); 565 566 AnimatorSet anim = LauncherAnimUtils.createAnimatorSet(); 567 int width = getPaddingLeft() + getPaddingRight() + mContent.getDesiredWidth(); 568 int height = getFolderHeight(); 569 570 float transX = - 0.075f * (width / 2 - getPivotX()); 571 float transY = - 0.075f * (height / 2 - getPivotY()); 572 setTranslationX(transX); 573 setTranslationY(transY); 574 PropertyValuesHolder tx = PropertyValuesHolder.ofFloat(TRANSLATION_X, transX, 0); 575 PropertyValuesHolder ty = PropertyValuesHolder.ofFloat(TRANSLATION_Y, transY, 0); 576 577 Animator drift = ObjectAnimator.ofPropertyValuesHolder(this, tx, ty); 578 drift.setDuration(mMaterialExpandDuration); 579 drift.setStartDelay(mMaterialExpandStagger); 580 drift.setInterpolator(new LogDecelerateInterpolator(100, 0)); 581 582 int rx = (int) Math.max(Math.max(width - getPivotX(), 0), getPivotX()); 583 int ry = (int) Math.max(Math.max(height - getPivotY(), 0), getPivotY()); 584 float radius = (float) Math.hypot(rx, ry); 585 586 Animator reveal = new CircleRevealOutlineProvider((int) getPivotX(), 587 (int) getPivotY(), 0, radius).createRevealAnimator(this); 588 reveal.setDuration(mMaterialExpandDuration); 589 reveal.setInterpolator(new LogDecelerateInterpolator(100, 0)); 590 591 mContent.setAlpha(0f); 592 Animator iconsAlpha = ObjectAnimator.ofFloat(mContent, "alpha", 0f, 1f); 593 iconsAlpha.setDuration(mMaterialExpandDuration); 594 iconsAlpha.setStartDelay(mMaterialExpandStagger); 595 iconsAlpha.setInterpolator(new AccelerateInterpolator(1.5f)); 596 597 mFooter.setAlpha(0f); 598 Animator textAlpha = ObjectAnimator.ofFloat(mFooter, "alpha", 0f, 1f); 599 textAlpha.setDuration(mMaterialExpandDuration); 600 textAlpha.setStartDelay(mMaterialExpandStagger); 601 textAlpha.setInterpolator(new AccelerateInterpolator(1.5f)); 602 603 anim.play(drift); 604 anim.play(iconsAlpha); 605 anim.play(textAlpha); 606 anim.play(reveal); 607 608 openFolderAnim = anim; 609 610 mContent.setLayerType(LAYER_TYPE_HARDWARE, null); 611 mFooter.setLayerType(LAYER_TYPE_HARDWARE, null); 612 onCompleteRunnable = new Runnable() { 613 @Override 614 public void run() { 615 mContent.setLayerType(LAYER_TYPE_NONE, null); 616 mFooter.setLayerType(LAYER_TYPE_NONE, null); 617 mLauncher.getUserEventDispatcher().resetElapsedContainerMillis(); 618 } 619 }; 620 } 621 openFolderAnim.addListener(new AnimatorListenerAdapter() { 622 @Override 623 public void onAnimationStart(Animator animation) { 624 Utilities.sendCustomAccessibilityEvent( 625 Folder.this, 626 AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED, 627 mContent.getAccessibilityDescription()); 628 mState = STATE_ANIMATING; 629 } 630 @Override 631 public void onAnimationEnd(Animator animation) { 632 mState = STATE_OPEN; 633 634 onCompleteRunnable.run(); 635 mContent.setFocusOnFirstChild(); 636 } 637 }); 638 639 // Footer animation 640 if (mContent.getPageCount() > 1 && !mInfo.hasOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION)) { 641 int footerWidth = mContent.getDesiredWidth() 642 - mFooter.getPaddingLeft() - mFooter.getPaddingRight(); 643 644 float textWidth = mFolderName.getPaint().measureText(mFolderName.getText().toString()); 645 float translation = (footerWidth - textWidth) / 2; 646 mFolderName.setTranslationX(mContent.mIsRtl ? -translation : translation); 647 mPageIndicator.prepareEntryAnimation(); 648 649 // Do not update the flag if we are in drag mode. The flag will be updated, when we 650 // actually drop the icon. 651 final boolean updateAnimationFlag = !mDragInProgress; 652 openFolderAnim.addListener(new AnimatorListenerAdapter() { 653 654 @SuppressLint("InlinedApi") 655 @Override 656 public void onAnimationEnd(Animator animation) { 657 mFolderName.animate().setDuration(FOLDER_NAME_ANIMATION_DURATION) 658 .translationX(0) 659 .setInterpolator(Utilities.ATLEAST_LOLLIPOP ? 660 AnimationUtils.loadInterpolator(mLauncher, 661 android.R.interpolator.fast_out_slow_in) 662 : new LogDecelerateInterpolator(100, 0)); 663 mPageIndicator.playEntryAnimation(); 664 665 if (updateAnimationFlag) { 666 mInfo.setOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION, true, mLauncher); 667 } 668 } 669 }); 670 } else { 671 mFolderName.setTranslationX(0); 672 } 673 674 mPageIndicator.stopAllAnimations(); 675 openFolderAnim.start(); 676 677 // Make sure the folder picks up the last drag move even if the finger doesn't move. 678 if (mDragController.isDragging()) { 679 mDragController.forceTouchMove(); 680 } 681 682 mContent.verifyVisibleHighResIcons(mContent.getNextPage()); 683 } 684 685 public void beginExternalDrag() { 686 mEmptyCellRank = mContent.allocateRankForNewItem(); 687 mIsExternalDrag = true; 688 mDragInProgress = true; 689 690 // Since this folder opened by another controller, it might not get onDrop or 691 // onDropComplete. Perform cleanup once drag-n-drop ends. 692 mDragController.addDragListener(this); 693 } 694 695 public void animateClosed() { 696 if (!(getParent() instanceof DragLayer)) return; 697 final ObjectAnimator oa = LauncherAnimUtils.ofViewAlphaAndScale(this, 0, 0.9f, 0.9f); 698 oa.addListener(new AnimatorListenerAdapter() { 699 @Override 700 public void onAnimationEnd(Animator animation) { 701 setLayerType(LAYER_TYPE_NONE, null); 702 close(true); 703 } 704 @Override 705 public void onAnimationStart(Animator animation) { 706 Utilities.sendCustomAccessibilityEvent( 707 Folder.this, 708 AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED, 709 getContext().getString(R.string.folder_closed)); 710 mState = STATE_ANIMATING; 711 } 712 }); 713 oa.setDuration(mExpandDuration); 714 setLayerType(LAYER_TYPE_HARDWARE, null); 715 oa.start(); 716 } 717 718 public void close(boolean wasAnimated) { 719 // TODO: Clear all active animations. 720 DragLayer parent = (DragLayer) getParent(); 721 if (parent != null) { 722 parent.removeView(this); 723 } 724 mDragController.removeDropTarget(this); 725 clearFocus(); 726 if (wasAnimated) { 727 mFolderIcon.requestFocus(); 728 } 729 730 if (mRearrangeOnClose) { 731 rearrangeChildren(); 732 mRearrangeOnClose = false; 733 } 734 if (getItemCount() <= 1) { 735 if (!mDragInProgress && !mSuppressFolderDeletion) { 736 replaceFolderWithFinalItem(); 737 } else if (mDragInProgress) { 738 mDeleteFolderOnDropCompleted = true; 739 } 740 } 741 mSuppressFolderDeletion = false; 742 clearDragInfo(); 743 mState = STATE_SMALL; 744 } 745 746 public boolean acceptDrop(DragObject d) { 747 final ItemInfo item = d.dragInfo; 748 final int itemType = item.itemType; 749 return ((itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || 750 itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT || 751 itemType == LauncherSettings.Favorites.ITEM_TYPE_DEEP_SHORTCUT) && 752 !isFull()); 753 } 754 755 public void onDragEnter(DragObject d) { 756 mPrevTargetRank = -1; 757 mOnExitAlarm.cancelAlarm(); 758 // Get the area offset such that the folder only closes if half the drag icon width 759 // is outside the folder area 760 mScrollAreaOffset = d.dragView.getDragRegionWidth() / 2 - d.xOffset; 761 } 762 763 OnAlarmListener mReorderAlarmListener = new OnAlarmListener() { 764 public void onAlarm(Alarm alarm) { 765 mContent.realTimeReorder(mEmptyCellRank, mTargetRank); 766 mEmptyCellRank = mTargetRank; 767 } 768 }; 769 770 @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1) 771 public boolean isLayoutRtl() { 772 return (getLayoutDirection() == LAYOUT_DIRECTION_RTL); 773 } 774 775 @Override 776 public void onDragOver(DragObject d) { 777 onDragOver(d, REORDER_DELAY); 778 } 779 780 private int getTargetRank(DragObject d, float[] recycle) { 781 recycle = d.getVisualCenter(recycle); 782 return mContent.findNearestArea( 783 (int) recycle[0] - getPaddingLeft(), (int) recycle[1] - getPaddingTop()); 784 } 785 786 @Thunk void onDragOver(DragObject d, int reorderDelay) { 787 if (mScrollPauseAlarm.alarmPending()) { 788 return; 789 } 790 final float[] r = new float[2]; 791 mTargetRank = getTargetRank(d, r); 792 793 if (mTargetRank != mPrevTargetRank) { 794 mReorderAlarm.cancelAlarm(); 795 mReorderAlarm.setOnAlarmListener(mReorderAlarmListener); 796 mReorderAlarm.setAlarm(REORDER_DELAY); 797 mPrevTargetRank = mTargetRank; 798 799 if (d.stateAnnouncer != null) { 800 d.stateAnnouncer.announce(getContext().getString(R.string.move_to_position, 801 mTargetRank + 1)); 802 } 803 } 804 805 float x = r[0]; 806 int currentPage = mContent.getNextPage(); 807 808 float cellOverlap = mContent.getCurrentCellLayout().getCellWidth() 809 * ICON_OVERSCROLL_WIDTH_FACTOR; 810 boolean isOutsideLeftEdge = x < cellOverlap; 811 boolean isOutsideRightEdge = x > (getWidth() - cellOverlap); 812 813 if (currentPage > 0 && (mContent.mIsRtl ? isOutsideRightEdge : isOutsideLeftEdge)) { 814 showScrollHint(DragController.SCROLL_LEFT, d); 815 } else if (currentPage < (mContent.getPageCount() - 1) 816 && (mContent.mIsRtl ? isOutsideLeftEdge : isOutsideRightEdge)) { 817 showScrollHint(DragController.SCROLL_RIGHT, d); 818 } else { 819 mOnScrollHintAlarm.cancelAlarm(); 820 if (mScrollHintDir != DragController.SCROLL_NONE) { 821 mContent.clearScrollHint(); 822 mScrollHintDir = DragController.SCROLL_NONE; 823 } 824 } 825 } 826 827 private void showScrollHint(int direction, DragObject d) { 828 // Show scroll hint on the right 829 if (mScrollHintDir != direction) { 830 mContent.showScrollHint(direction); 831 mScrollHintDir = direction; 832 } 833 834 // Set alarm for when the hint is complete 835 if (!mOnScrollHintAlarm.alarmPending() || mCurrentScrollDir != direction) { 836 mCurrentScrollDir = direction; 837 mOnScrollHintAlarm.cancelAlarm(); 838 mOnScrollHintAlarm.setOnAlarmListener(new OnScrollHintListener(d)); 839 mOnScrollHintAlarm.setAlarm(SCROLL_HINT_DURATION); 840 841 mReorderAlarm.cancelAlarm(); 842 mTargetRank = mEmptyCellRank; 843 } 844 } 845 846 OnAlarmListener mOnExitAlarmListener = new OnAlarmListener() { 847 public void onAlarm(Alarm alarm) { 848 completeDragExit(); 849 } 850 }; 851 852 public void completeDragExit() { 853 if (mInfo.opened) { 854 mLauncher.closeFolder(); 855 mRearrangeOnClose = true; 856 } else if (mState == STATE_ANIMATING) { 857 mRearrangeOnClose = true; 858 } else { 859 rearrangeChildren(); 860 clearDragInfo(); 861 } 862 } 863 864 private void clearDragInfo() { 865 mCurrentDragView = null; 866 mIsExternalDrag = false; 867 } 868 869 public void onDragExit(DragObject d) { 870 // We only close the folder if this is a true drag exit, ie. not because 871 // a drop has occurred above the folder. 872 if (!d.dragComplete) { 873 mOnExitAlarm.setOnAlarmListener(mOnExitAlarmListener); 874 mOnExitAlarm.setAlarm(ON_EXIT_CLOSE_DELAY); 875 } 876 mReorderAlarm.cancelAlarm(); 877 878 mOnScrollHintAlarm.cancelAlarm(); 879 mScrollPauseAlarm.cancelAlarm(); 880 if (mScrollHintDir != DragController.SCROLL_NONE) { 881 mContent.clearScrollHint(); 882 mScrollHintDir = DragController.SCROLL_NONE; 883 } 884 } 885 886 /** 887 * When performing an accessibility drop, onDrop is sent immediately after onDragEnter. So we 888 * need to complete all transient states based on timers. 889 */ 890 @Override 891 public void prepareAccessibilityDrop() { 892 if (mReorderAlarm.alarmPending()) { 893 mReorderAlarm.cancelAlarm(); 894 mReorderAlarmListener.onAlarm(mReorderAlarm); 895 } 896 } 897 898 public void onDropCompleted(final View target, final DragObject d, 899 final boolean isFlingToDelete, final boolean success) { 900 if (mDeferDropAfterUninstall) { 901 Log.d(TAG, "Deferred handling drop because waiting for uninstall."); 902 mDeferredAction = new Runnable() { 903 public void run() { 904 onDropCompleted(target, d, isFlingToDelete, success); 905 mDeferredAction = null; 906 } 907 }; 908 return; 909 } 910 911 boolean beingCalledAfterUninstall = mDeferredAction != null; 912 boolean successfulDrop = 913 success && (!beingCalledAfterUninstall || mUninstallSuccessful); 914 915 if (successfulDrop) { 916 if (mDeleteFolderOnDropCompleted && !mItemAddedBackToSelfViaIcon && target != this) { 917 replaceFolderWithFinalItem(); 918 } 919 } else if (!mDragController.isDeferringDrag()) { 920 // The drag failed, we need to return the item to the folder 921 ShortcutInfo info = (ShortcutInfo) d.dragInfo; 922 View icon = (mCurrentDragView != null && mCurrentDragView.getTag() == info) 923 ? mCurrentDragView : mContent.createNewView(info); 924 ArrayList<View> views = getItemsInReadingOrder(); 925 views.add(info.rank, icon); 926 mContent.arrangeChildren(views, views.size()); 927 mItemsInvalidated = true; 928 929 try (SuppressInfoChanges s = new SuppressInfoChanges()) { 930 mFolderIcon.onDrop(d); 931 } 932 } 933 934 if (target != this) { 935 if (mOnExitAlarm.alarmPending()) { 936 mOnExitAlarm.cancelAlarm(); 937 if (!successfulDrop) { 938 mSuppressFolderDeletion = true; 939 } 940 mScrollPauseAlarm.cancelAlarm(); 941 completeDragExit(); 942 } 943 } 944 945 mDeleteFolderOnDropCompleted = false; 946 mDragInProgress = false; 947 mItemAddedBackToSelfViaIcon = false; 948 mCurrentDragView = null; 949 950 // Reordering may have occured, and we need to save the new item locations. We do this once 951 // at the end to prevent unnecessary database operations. 952 updateItemLocationsInDatabaseBatch(); 953 954 // Use the item count to check for multi-page as the folder UI may not have 955 // been refreshed yet. 956 if (getItemCount() <= mContent.itemsPerPage()) { 957 // Show the animation, next time something is added to the folder. 958 mInfo.setOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION, false, mLauncher); 959 } 960 961 if (!isFlingToDelete) { 962 // Fling to delete already exits spring loaded mode after the animation finishes. 963 mLauncher.exitSpringLoadedDragModeDelayed(successfulDrop, 964 Launcher.EXIT_SPRINGLOADED_MODE_SHORT_TIMEOUT, null); 965 } 966 } 967 968 @Override 969 public void deferCompleteDropAfterUninstallActivity() { 970 mDeferDropAfterUninstall = true; 971 } 972 973 @Override 974 public void onDragObjectRemoved(boolean success) { 975 mDeferDropAfterUninstall = false; 976 mUninstallSuccessful = success; 977 if (mDeferredAction != null) { 978 mDeferredAction.run(); 979 } 980 } 981 982 @Override 983 public float getIntrinsicIconScaleFactor() { 984 return 1f; 985 } 986 987 @Override 988 public boolean supportsFlingToDelete() { 989 return true; 990 } 991 992 @Override 993 public boolean supportsAppInfoDropTarget() { 994 return !FeatureFlags.LAUNCHER3_LEGACY_WORKSPACE_DND; 995 } 996 997 @Override 998 public boolean supportsDeleteDropTarget() { 999 return true; 1000 } 1001 1002 @Override 1003 public void onFlingToDelete(DragObject d, PointF vec) { 1004 // Do nothing 1005 } 1006 1007 @Override 1008 public void onFlingToDeleteCompleted() { 1009 // Do nothing 1010 } 1011 1012 private void updateItemLocationsInDatabaseBatch() { 1013 ArrayList<View> list = getItemsInReadingOrder(); 1014 ArrayList<ItemInfo> items = new ArrayList<ItemInfo>(); 1015 for (int i = 0; i < list.size(); i++) { 1016 View v = list.get(i); 1017 ItemInfo info = (ItemInfo) v.getTag(); 1018 info.rank = i; 1019 items.add(info); 1020 } 1021 1022 LauncherModel.moveItemsInDatabase(mLauncher, items, mInfo.id, 0); 1023 } 1024 1025 public void notifyDrop() { 1026 if (mDragInProgress) { 1027 mItemAddedBackToSelfViaIcon = true; 1028 } 1029 } 1030 1031 public boolean isDropEnabled() { 1032 return true; 1033 } 1034 1035 public boolean isFull() { 1036 return mContent.isFull(); 1037 } 1038 1039 private void centerAboutIcon() { 1040 DeviceProfile grid = mLauncher.getDeviceProfile(); 1041 1042 DragLayer.LayoutParams lp = (DragLayer.LayoutParams) getLayoutParams(); 1043 DragLayer parent = (DragLayer) mLauncher.findViewById(R.id.drag_layer); 1044 int width = getPaddingLeft() + getPaddingRight() + mContent.getDesiredWidth(); 1045 int height = getFolderHeight(); 1046 1047 float scale = parent.getDescendantRectRelativeToSelf(mFolderIcon, sTempRect); 1048 int centerX = sTempRect.centerX(); 1049 int centerY = sTempRect.centerY(); 1050 int centeredLeft = centerX - width / 2; 1051 int centeredTop = centerY - height / 2; 1052 1053 // We need to bound the folder to the currently visible workspace area 1054 mLauncher.getWorkspace().getPageAreaRelativeToDragLayer(sTempRect); 1055 int left = Math.min(Math.max(sTempRect.left, centeredLeft), 1056 sTempRect.right- width); 1057 int top = Math.min(Math.max(sTempRect.top, centeredTop), 1058 sTempRect.bottom - height); 1059 1060 int distFromEdgeOfScreen = mLauncher.getWorkspace().getPaddingLeft() + getPaddingLeft(); 1061 1062 if (grid.isPhone && (grid.availableWidthPx - width) < 4 * distFromEdgeOfScreen) { 1063 // Center the folder if it is very close to being centered anyway, by virtue of 1064 // filling the majority of the viewport. ie. remove it from the uncanny valley 1065 // of centeredness. 1066 left = (grid.availableWidthPx - width) / 2; 1067 } else if (width >= sTempRect.width()) { 1068 // If the folder doesn't fit within the bounds, center it about the desired bounds 1069 left = sTempRect.left + (sTempRect.width() - width) / 2; 1070 } 1071 if (height >= sTempRect.height()) { 1072 // Folder height is greater than page height, center on page 1073 top = sTempRect.top + (sTempRect.height() - height) / 2; 1074 } else { 1075 // Folder height is less than page height, so bound it to the absolute open folder 1076 // bounds if necessary 1077 Rect folderBounds = grid.getAbsoluteOpenFolderBounds(); 1078 left = Math.max(folderBounds.left, Math.min(left, folderBounds.right - width)); 1079 top = Math.max(folderBounds.top, Math.min(top, folderBounds.bottom - height)); 1080 } 1081 1082 int folderPivotX = width / 2 + (centeredLeft - left); 1083 int folderPivotY = height / 2 + (centeredTop - top); 1084 setPivotX(folderPivotX); 1085 setPivotY(folderPivotY); 1086 mFolderIconPivotX = (int) (mFolderIcon.getMeasuredWidth() * 1087 (1.0f * folderPivotX / width)); 1088 mFolderIconPivotY = (int) (mFolderIcon.getMeasuredHeight() * 1089 (1.0f * folderPivotY / height)); 1090 1091 lp.width = width; 1092 lp.height = height; 1093 lp.x = left; 1094 lp.y = top; 1095 } 1096 1097 public float getPivotXForIconAnimation() { 1098 return mFolderIconPivotX; 1099 } 1100 public float getPivotYForIconAnimation() { 1101 return mFolderIconPivotY; 1102 } 1103 1104 private int getContentAreaHeight() { 1105 DeviceProfile grid = mLauncher.getDeviceProfile(); 1106 int maxContentAreaHeight = grid.availableHeightPx 1107 - grid.getTotalWorkspacePadding().y - mFooterHeight; 1108 int height = Math.min(maxContentAreaHeight, 1109 mContent.getDesiredHeight()); 1110 return Math.max(height, MIN_CONTENT_DIMEN); 1111 } 1112 1113 private int getContentAreaWidth() { 1114 return Math.max(mContent.getDesiredWidth(), MIN_CONTENT_DIMEN); 1115 } 1116 1117 private int getFolderHeight() { 1118 return getFolderHeight(getContentAreaHeight()); 1119 } 1120 1121 private int getFolderHeight(int contentAreaHeight) { 1122 return getPaddingTop() + getPaddingBottom() + contentAreaHeight + mFooterHeight; 1123 } 1124 1125 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 1126 int contentWidth = getContentAreaWidth(); 1127 int contentHeight = getContentAreaHeight(); 1128 1129 int contentAreaWidthSpec = MeasureSpec.makeMeasureSpec(contentWidth, MeasureSpec.EXACTLY); 1130 int contentAreaHeightSpec = MeasureSpec.makeMeasureSpec(contentHeight, MeasureSpec.EXACTLY); 1131 1132 mContent.setFixedSize(contentWidth, contentHeight); 1133 mContent.measure(contentAreaWidthSpec, contentAreaHeightSpec); 1134 1135 if (mContent.getChildCount() > 0) { 1136 int cellIconGap = (mContent.getPageAt(0).getCellWidth() 1137 - mLauncher.getDeviceProfile().iconSizePx) / 2; 1138 mFooter.setPadding(mContent.getPaddingLeft() + cellIconGap, 1139 mFooter.getPaddingTop(), 1140 mContent.getPaddingRight() + cellIconGap, 1141 mFooter.getPaddingBottom()); 1142 } 1143 mFooter.measure(contentAreaWidthSpec, 1144 MeasureSpec.makeMeasureSpec(mFooterHeight, MeasureSpec.EXACTLY)); 1145 1146 int folderWidth = getPaddingLeft() + getPaddingRight() + contentWidth; 1147 int folderHeight = getFolderHeight(contentHeight); 1148 setMeasuredDimension(folderWidth, folderHeight); 1149 } 1150 1151 /** 1152 * Rearranges the children based on their rank. 1153 */ 1154 public void rearrangeChildren() { 1155 rearrangeChildren(-1); 1156 } 1157 1158 /** 1159 * Rearranges the children based on their rank. 1160 * @param itemCount if greater than the total children count, empty spaces are left at the end, 1161 * otherwise it is ignored. 1162 */ 1163 public void rearrangeChildren(int itemCount) { 1164 ArrayList<View> views = getItemsInReadingOrder(); 1165 mContent.arrangeChildren(views, Math.max(itemCount, views.size())); 1166 mItemsInvalidated = true; 1167 } 1168 1169 public int getItemCount() { 1170 return mContent.getItemCount(); 1171 } 1172 1173 @Thunk void replaceFolderWithFinalItem() { 1174 // Add the last remaining child to the workspace in place of the folder 1175 Runnable onCompleteRunnable = new Runnable() { 1176 @Override 1177 public void run() { 1178 int itemCount = mInfo.contents.size(); 1179 if (itemCount <= 1) { 1180 View newIcon = null; 1181 1182 if (itemCount == 1) { 1183 // Move the item from the folder to the workspace, in the position of the 1184 // folder 1185 CellLayout cellLayout = mLauncher.getCellLayout(mInfo.container, 1186 mInfo.screenId); 1187 ShortcutInfo finalItem = mInfo.contents.remove(0); 1188 newIcon = mLauncher.createShortcut(cellLayout, finalItem); 1189 LauncherModel.addOrMoveItemInDatabase(mLauncher, finalItem, mInfo.container, 1190 mInfo.screenId, mInfo.cellX, mInfo.cellY); 1191 } 1192 1193 // Remove the folder 1194 mLauncher.removeItem(mFolderIcon, mInfo, true /* deleteFromDb */); 1195 if (mFolderIcon instanceof DropTarget) { 1196 mDragController.removeDropTarget((DropTarget) mFolderIcon); 1197 } 1198 1199 if (newIcon != null) { 1200 // We add the child after removing the folder to prevent both from existing 1201 // at the same time in the CellLayout. We need to add the new item with 1202 // addInScreenFromBind() to ensure that hotseat items are placed correctly. 1203 mLauncher.getWorkspace().addInScreenFromBind(newIcon, mInfo.container, 1204 mInfo.screenId, mInfo.cellX, mInfo.cellY, mInfo.spanX, mInfo.spanY); 1205 1206 // Focus the newly created child 1207 newIcon.requestFocus(); 1208 } 1209 } 1210 } 1211 }; 1212 View finalChild = mContent.getLastItem(); 1213 if (finalChild != null) { 1214 mFolderIcon.performDestroyAnimation(finalChild, onCompleteRunnable); 1215 } else { 1216 onCompleteRunnable.run(); 1217 } 1218 mDestroyed = true; 1219 } 1220 1221 public boolean isDestroyed() { 1222 return mDestroyed; 1223 } 1224 1225 // This method keeps track of the first and last item in the folder for the purposes 1226 // of keyboard focus 1227 public void updateTextViewFocus() { 1228 final View firstChild = mContent.getFirstItem(); 1229 final View lastChild = mContent.getLastItem(); 1230 if (firstChild != null && lastChild != null) { 1231 mFolderName.setNextFocusDownId(lastChild.getId()); 1232 mFolderName.setNextFocusRightId(lastChild.getId()); 1233 mFolderName.setNextFocusLeftId(lastChild.getId()); 1234 mFolderName.setNextFocusUpId(lastChild.getId()); 1235 // Hitting TAB from the folder name wraps around to the first item on the current 1236 // folder page, and hitting SHIFT+TAB from that item wraps back to the folder name. 1237 mFolderName.setNextFocusForwardId(firstChild.getId()); 1238 // When clicking off the folder when editing the name, this Folder gains focus. When 1239 // pressing an arrow key from that state, give the focus to the first item. 1240 this.setNextFocusDownId(firstChild.getId()); 1241 this.setNextFocusRightId(firstChild.getId()); 1242 this.setNextFocusLeftId(firstChild.getId()); 1243 this.setNextFocusUpId(firstChild.getId()); 1244 // When pressing shift+tab in the above state, give the focus to the last item. 1245 setOnKeyListener(new OnKeyListener() { 1246 @Override 1247 public boolean onKey(View v, int keyCode, KeyEvent event) { 1248 boolean isShiftPlusTab = keyCode == KeyEvent.KEYCODE_TAB && 1249 event.hasModifiers(KeyEvent.META_SHIFT_ON); 1250 if (isShiftPlusTab && Folder.this.isFocused()) { 1251 return lastChild.requestFocus(); 1252 } 1253 return false; 1254 } 1255 }); 1256 } 1257 } 1258 1259 public void onDrop(DragObject d) { 1260 Runnable cleanUpRunnable = null; 1261 1262 // If we are coming from All Apps space, we defer removing the extra empty screen 1263 // until the folder closes 1264 if (d.dragSource != mLauncher.getWorkspace() && !(d.dragSource instanceof Folder)) { 1265 cleanUpRunnable = new Runnable() { 1266 @Override 1267 public void run() { 1268 mLauncher.exitSpringLoadedDragModeDelayed(true, 1269 Launcher.EXIT_SPRINGLOADED_MODE_SHORT_TIMEOUT, 1270 null); 1271 } 1272 }; 1273 } 1274 1275 // If the icon was dropped while the page was being scrolled, we need to compute 1276 // the target location again such that the icon is placed of the final page. 1277 if (!mContent.rankOnCurrentPage(mEmptyCellRank)) { 1278 // Reorder again. 1279 mTargetRank = getTargetRank(d, null); 1280 1281 // Rearrange items immediately. 1282 mReorderAlarmListener.onAlarm(mReorderAlarm); 1283 1284 mOnScrollHintAlarm.cancelAlarm(); 1285 mScrollPauseAlarm.cancelAlarm(); 1286 } 1287 mContent.completePendingPageChanges(); 1288 1289 View currentDragView; 1290 final ShortcutInfo si; 1291 if (d.dragInfo instanceof AppInfo) { 1292 // Came from all apps -- make a copy. 1293 si = ((AppInfo) d.dragInfo).makeShortcut(); 1294 } else { 1295 // ShortcutInfo 1296 si = (ShortcutInfo) d.dragInfo; 1297 } 1298 if (mIsExternalDrag) { 1299 currentDragView = mContent.createAndAddViewForRank(si, mEmptyCellRank); 1300 // Actually move the item in the database if it was an external drag. Call this 1301 // before creating the view, so that ShortcutInfo is updated appropriately. 1302 LauncherModel.addOrMoveItemInDatabase( 1303 mLauncher, si, mInfo.id, 0, si.cellX, si.cellY); 1304 1305 // We only need to update the locations if it doesn't get handled in #onDropCompleted. 1306 if (d.dragSource != this) { 1307 updateItemLocationsInDatabaseBatch(); 1308 } 1309 mIsExternalDrag = false; 1310 } else { 1311 currentDragView = mCurrentDragView; 1312 if (!mDragController.isDeferringDrag()) { 1313 mContent.addViewForRank(currentDragView, si, mEmptyCellRank); 1314 } 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 if (!mDragController.isDeferringDrag()) { 1336 // Temporarily suppress the listener, as we did all the work already here. 1337 try (SuppressInfoChanges s = new SuppressInfoChanges()) { 1338 mInfo.add(si, false); 1339 } 1340 } 1341 1342 // Clear the drag info, as it is no longer being dragged. 1343 mDragInProgress = false; 1344 1345 if (mContent.getPageCount() > 1) { 1346 // The animation has already been shown while opening the folder. 1347 mInfo.setOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION, true, mLauncher); 1348 } 1349 1350 if (d.stateAnnouncer != null) { 1351 d.stateAnnouncer.completeAction(R.string.item_moved); 1352 } 1353 } 1354 1355 // This is used so the item doesn't immediately appear in the folder when added. In one case 1356 // we need to create the illusion that the item isn't added back to the folder yet, to 1357 // to correspond to the animation of the icon back into the folder. This is 1358 public void hideItem(ShortcutInfo info) { 1359 View v = getViewForInfo(info); 1360 v.setVisibility(INVISIBLE); 1361 } 1362 public void showItem(ShortcutInfo info) { 1363 View v = getViewForInfo(info); 1364 v.setVisibility(VISIBLE); 1365 } 1366 1367 @Override 1368 public void onAdd(ShortcutInfo item) { 1369 mContent.createAndAddViewForRank(item, mContent.allocateRankForNewItem()); 1370 mItemsInvalidated = true; 1371 LauncherModel.addOrMoveItemInDatabase( 1372 mLauncher, item, mInfo.id, 0, item.cellX, item.cellY); 1373 } 1374 1375 public void onRemove(ShortcutInfo item) { 1376 mItemsInvalidated = true; 1377 View v = getViewForInfo(item); 1378 mContent.removeItem(v); 1379 if (mState == STATE_ANIMATING) { 1380 mRearrangeOnClose = true; 1381 } else { 1382 rearrangeChildren(); 1383 } 1384 if (getItemCount() <= 1) { 1385 if (mInfo.opened) { 1386 mLauncher.closeFolder(this, true); 1387 } else { 1388 replaceFolderWithFinalItem(); 1389 } 1390 } 1391 } 1392 1393 private View getViewForInfo(final ShortcutInfo item) { 1394 return mContent.iterateOverItems(new ItemOperator() { 1395 1396 @Override 1397 public boolean evaluate(ItemInfo info, View view) { 1398 return info == item; 1399 } 1400 }); 1401 } 1402 1403 @Override 1404 public void onItemsChanged(boolean animate) { 1405 updateTextViewFocus(); 1406 } 1407 1408 public void onTitleChanged(CharSequence title) { 1409 } 1410 1411 public ArrayList<View> getItemsInReadingOrder() { 1412 if (mItemsInvalidated) { 1413 mItemsInReadingOrder.clear(); 1414 mContent.iterateOverItems(new ItemOperator() { 1415 1416 @Override 1417 public boolean evaluate(ItemInfo info, View view) { 1418 mItemsInReadingOrder.add(view); 1419 return false; 1420 } 1421 }); 1422 mItemsInvalidated = false; 1423 } 1424 return mItemsInReadingOrder; 1425 } 1426 1427 public void onFocusChange(View v, boolean hasFocus) { 1428 if (v == mFolderName) { 1429 if (hasFocus) { 1430 startEditingFolderName(); 1431 } else { 1432 dismissEditingName(); 1433 } 1434 } 1435 } 1436 1437 @Override 1438 public void getHitRectRelativeToDragLayer(Rect outRect) { 1439 getHitRect(outRect); 1440 outRect.left -= mScrollAreaOffset; 1441 outRect.right += mScrollAreaOffset; 1442 } 1443 1444 @Override 1445 public void fillInLaunchSourceData(View v, ItemInfo info, Target target, Target targetParent) { 1446 target.gridX = info.cellX; 1447 target.gridY = info.cellY; 1448 target.pageIndex = mContent.getCurrentPage(); 1449 targetParent.containerType = LauncherLogProto.FOLDER; 1450 } 1451 1452 private class OnScrollHintListener implements OnAlarmListener { 1453 1454 private final DragObject mDragObject; 1455 1456 OnScrollHintListener(DragObject object) { 1457 mDragObject = object; 1458 } 1459 1460 /** 1461 * Scroll hint has been shown long enough. Now scroll to appropriate page. 1462 */ 1463 @Override 1464 public void onAlarm(Alarm alarm) { 1465 if (mCurrentScrollDir == DragController.SCROLL_LEFT) { 1466 mContent.scrollLeft(); 1467 mScrollHintDir = DragController.SCROLL_NONE; 1468 } else if (mCurrentScrollDir == DragController.SCROLL_RIGHT) { 1469 mContent.scrollRight(); 1470 mScrollHintDir = DragController.SCROLL_NONE; 1471 } else { 1472 // This should not happen 1473 return; 1474 } 1475 mCurrentScrollDir = DragController.SCROLL_NONE; 1476 1477 // Pause drag event until the scrolling is finished 1478 mScrollPauseAlarm.setOnAlarmListener(new OnScrollFinishedListener(mDragObject)); 1479 mScrollPauseAlarm.setAlarm(DragController.RESCROLL_DELAY); 1480 } 1481 } 1482 1483 private class OnScrollFinishedListener implements OnAlarmListener { 1484 1485 private final DragObject mDragObject; 1486 1487 OnScrollFinishedListener(DragObject object) { 1488 mDragObject = object; 1489 } 1490 1491 /** 1492 * Page scroll is complete. 1493 */ 1494 @Override 1495 public void onAlarm(Alarm alarm) { 1496 // Reorder immediately on page change. 1497 onDragOver(mDragObject, 1); 1498 } 1499 } 1500 1501 // Compares item position based on rank and position giving priority to the rank. 1502 public static final Comparator<ItemInfo> ITEM_POS_COMPARATOR = new Comparator<ItemInfo>() { 1503 1504 @Override 1505 public int compare(ItemInfo lhs, ItemInfo rhs) { 1506 if (lhs.rank != rhs.rank) { 1507 return lhs.rank - rhs.rank; 1508 } else if (lhs.cellY != rhs.cellY) { 1509 return lhs.cellY - rhs.cellY; 1510 } else { 1511 return lhs.cellX - rhs.cellX; 1512 } 1513 } 1514 }; 1515 1516 /** 1517 * Temporary resource held while we don't want to handle info changes 1518 */ 1519 private class SuppressInfoChanges implements AutoCloseable { 1520 1521 SuppressInfoChanges() { 1522 mInfo.removeListener(Folder.this); 1523 } 1524 1525 @Override 1526 public void close() { 1527 mInfo.addListener(Folder.this); 1528 updateTextViewFocus(); 1529 } 1530 } 1531} 1532