Folder.java revision 8ce6063c4a5bd90810f0a21c946e5bbad3ce9de4
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.accessibility.AccessibilityManager; 46import android.view.animation.AccelerateInterpolator; 47import android.view.animation.AnimationUtils; 48import android.view.inputmethod.EditorInfo; 49import android.view.inputmethod.InputMethodManager; 50import android.widget.LinearLayout; 51import android.widget.TextView; 52 53import com.android.launcher3.Alarm; 54import com.android.launcher3.CellLayout; 55import com.android.launcher3.CellLayout.CellInfo; 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.LauncherAccessibilityDelegate.AccessibilityDragSource; 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.logging.UserEventDispatcher.LaunchSourceProvider; 80import com.android.launcher3.pageindicators.PageIndicatorDots; 81import com.android.launcher3.userevent.nano.LauncherLogProto; 82import com.android.launcher3.userevent.nano.LauncherLogProto.Target; 83import com.android.launcher3.util.CircleRevealOutlineProvider; 84import com.android.launcher3.util.Thunk; 85 86import java.util.ArrayList; 87import java.util.Collections; 88import java.util.Comparator; 89 90/** 91 * Represents a set of icons chosen by the user or generated by the system. 92 */ 93public class Folder extends LinearLayout implements DragSource, View.OnClickListener, 94 View.OnLongClickListener, DropTarget, FolderListener, TextView.OnEditorActionListener, 95 View.OnFocusChangeListener, DragListener, DropTargetSource, AccessibilityDragSource, 96 LaunchSourceProvider { 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 ShortcutInfo mCurrentDragInfo; 170 private View mCurrentDragView; 171 private boolean mIsExternalDrag; 172 boolean mSuppressOnAdd = false; 173 private boolean mDragInProgress = false; 174 private boolean mDeleteFolderOnDropCompleted = false; 175 private boolean mSuppressFolderDeletion = false; 176 private boolean mItemAddedBackToSelfViaIcon = false; 177 @Thunk float mFolderIconPivotX; 178 @Thunk float mFolderIconPivotY; 179 private boolean mIsEditingName = false; 180 181 @ViewDebug.ExportedProperty(category = "launcher") 182 private boolean mDestroyed; 183 184 @Thunk Runnable mDeferredAction; 185 private boolean mDeferDropAfterUninstall; 186 private boolean mUninstallSuccessful; 187 188 // Folder scrolling 189 private int mScrollAreaOffset; 190 191 @Thunk int mScrollHintDir = DragController.SCROLL_NONE; 192 @Thunk int mCurrentScrollDir = DragController.SCROLL_NONE; 193 194 /** 195 * Used to inflate the Workspace from XML. 196 * 197 * @param context The application's context. 198 * @param attrs The attributes set containing the Workspace's customization values. 199 */ 200 public Folder(Context context, AttributeSet attrs) { 201 super(context, attrs); 202 setAlwaysDrawnWithCacheEnabled(false); 203 mInputMethodManager = (InputMethodManager) 204 getContext().getSystemService(Context.INPUT_METHOD_SERVICE); 205 206 Resources res = getResources(); 207 mExpandDuration = res.getInteger(R.integer.config_folderExpandDuration); 208 mMaterialExpandDuration = res.getInteger(R.integer.config_materialFolderExpandDuration); 209 mMaterialExpandStagger = res.getInteger(R.integer.config_materialFolderExpandStagger); 210 211 if (sDefaultFolderName == null) { 212 sDefaultFolderName = res.getString(R.string.folder_name); 213 } 214 if (sHintText == null) { 215 sHintText = res.getString(R.string.folder_hint_text); 216 } 217 mLauncher = (Launcher) context; 218 // We need this view to be focusable in touch mode so that when text editing of the folder 219 // name is complete, we have something to focus on, thus hiding the cursor and giving 220 // reliable behavior when clicking the text field (since it will always gain focus on click). 221 setFocusableInTouchMode(true); 222 } 223 224 @Override 225 protected void onFinishInflate() { 226 super.onFinishInflate(); 227 mContent = (FolderPagedView) findViewById(R.id.folder_content); 228 mContent.setFolder(this); 229 230 mPageIndicator = (PageIndicatorDots) findViewById(R.id.folder_page_indicator); 231 mFolderName = (ExtendedEditText) findViewById(R.id.folder_name); 232 mFolderName.setOnBackKeyListener(new ExtendedEditText.OnBackKeyListener() { 233 @Override 234 public boolean onBackKey() { 235 // Close the activity on back key press 236 doneEditingFolderName(true); 237 return false; 238 } 239 }); 240 mFolderName.setOnFocusChangeListener(this); 241 242 if (!Utilities.ATLEAST_MARSHMALLOW) { 243 // We disable action mode in older OSes where floating selection menu is not yet 244 // available. 245 mFolderName.setCustomSelectionActionModeCallback(new ActionMode.Callback() { 246 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 247 return false; 248 } 249 250 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 251 return false; 252 } 253 254 public void onDestroyActionMode(ActionMode mode) { 255 } 256 257 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 258 return false; 259 } 260 }); 261 } 262 mFolderName.setOnEditorActionListener(this); 263 mFolderName.setSelectAllOnFocus(true); 264 mFolderName.setInputType(mFolderName.getInputType() | 265 InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS | InputType.TYPE_TEXT_FLAG_CAP_WORDS); 266 267 mFooter = findViewById(R.id.folder_footer); 268 269 // We find out how tall footer wants to be (it is set to wrap_content), so that 270 // we can allocate the appropriate amount of space for it. 271 int measureSpec = MeasureSpec.UNSPECIFIED; 272 mFooter.measure(measureSpec, measureSpec); 273 mFooterHeight = mFooter.getMeasuredHeight(); 274 } 275 276 public void onClick(View v) { 277 Object tag = v.getTag(); 278 if (tag instanceof ShortcutInfo) { 279 mLauncher.onClick(v); 280 } 281 } 282 283 public boolean onLongClick(View v) { 284 // Return if global dragging is not enabled 285 if (!mLauncher.isDraggingEnabled()) return true; 286 return beginDrag(v, false); 287 } 288 289 private boolean beginDrag(View v, boolean accessible) { 290 Object tag = v.getTag(); 291 if (tag instanceof ShortcutInfo) { 292 ShortcutInfo item = (ShortcutInfo) tag; 293 if (!v.isInTouchMode()) { 294 return false; 295 } 296 297 mLauncher.getWorkspace().beginDragShared(v, this, accessible); 298 299 mCurrentDragInfo = item; 300 mEmptyCellRank = item.rank; 301 mCurrentDragView = v; 302 303 mContent.removeItem(mCurrentDragView); 304 mInfo.remove(mCurrentDragInfo, true); 305 mDragInProgress = true; 306 mItemAddedBackToSelfViaIcon = false; 307 } 308 return true; 309 } 310 311 @Override 312 public void startDrag(CellInfo cellInfo, boolean accessible) { 313 beginDrag(cellInfo.cell, accessible); 314 } 315 316 @Override 317 public void enableAccessibleDrag(boolean enable) { 318 mLauncher.getDropTargetBar().enableAccessibleDrag(enable); 319 for (int i = 0; i < mContent.getChildCount(); i++) { 320 mContent.getPageAt(i).enableAccessibleDrag(enable, CellLayout.FOLDER_ACCESSIBILITY_DRAG); 321 } 322 323 mFooter.setImportantForAccessibility(enable ? IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS : 324 IMPORTANT_FOR_ACCESSIBILITY_AUTO); 325 mLauncher.getWorkspace().setAddNewPageOnDrag(!enable); 326 } 327 328 public boolean isEditingName() { 329 return mIsEditingName; 330 } 331 332 public void startEditingFolderName() { 333 post(new Runnable() { 334 @Override 335 public void run() { 336 mFolderName.setHint(""); 337 mIsEditingName = true; 338 } 339 }); 340 } 341 342 public void dismissEditingName() { 343 mInputMethodManager.hideSoftInputFromWindow(getWindowToken(), 0); 344 doneEditingFolderName(true); 345 } 346 347 public void doneEditingFolderName(boolean commit) { 348 mFolderName.setHint(sHintText); 349 // Convert to a string here to ensure that no other state associated with the text field 350 // gets saved. 351 String newTitle = mFolderName.getText().toString(); 352 mInfo.setTitle(newTitle); 353 LauncherModel.updateItemInDatabase(mLauncher, mInfo); 354 355 if (commit) { 356 sendCustomAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED, 357 getContext().getString(R.string.folder_renamed, newTitle)); 358 } 359 360 // This ensures that focus is gained every time the field is clicked, which selects all 361 // the text and brings up the soft keyboard if necessary. 362 mFolderName.clearFocus(); 363 364 Selection.setSelection((Spannable) mFolderName.getText(), 0, 0); 365 mIsEditingName = false; 366 } 367 368 public boolean onEditorAction(TextView v, int actionId, KeyEvent event) { 369 if (actionId == EditorInfo.IME_ACTION_DONE) { 370 dismissEditingName(); 371 return true; 372 } 373 return false; 374 } 375 376 public View getEditTextRegion() { 377 return mFolderName; 378 } 379 380 /** 381 * We need to handle touch events to prevent them from falling through to the workspace below. 382 */ 383 @SuppressLint("ClickableViewAccessibility") 384 @Override 385 public boolean onTouchEvent(MotionEvent ev) { 386 return true; 387 } 388 389 public void setDragController(DragController dragController) { 390 mDragController = dragController; 391 } 392 393 public void setFolderIcon(FolderIcon icon) { 394 mFolderIcon = icon; 395 } 396 397 @Override 398 protected void onAttachedToWindow() { 399 // requestFocus() causes the focus onto the folder itself, which doesn't cause visual 400 // effect but the next arrow key can start the keyboard focus inside of the folder, not 401 // the folder itself. 402 requestFocus(); 403 super.onAttachedToWindow(); 404 } 405 406 @Override 407 public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) { 408 // When the folder gets focus, we don't want to announce the list of items. 409 return true; 410 } 411 412 @Override 413 public View focusSearch(int direction) { 414 // When the folder is focused, further focus search should be within the folder contents. 415 return FocusFinder.getInstance().findNextFocus(this, null, direction); 416 } 417 418 /** 419 * @return the FolderInfo object associated with this folder 420 */ 421 public FolderInfo getInfo() { 422 return mInfo; 423 } 424 425 void bind(FolderInfo info) { 426 mInfo = info; 427 ArrayList<ShortcutInfo> children = info.contents; 428 Collections.sort(children, ITEM_POS_COMPARATOR); 429 430 ArrayList<ShortcutInfo> overflow = mContent.bindItems(children); 431 432 // If our folder has too many items we prune them from the list. This is an issue 433 // when upgrading from the old Folders implementation which could contain an unlimited 434 // number of items. 435 // TODO: Remove this, as with multi-page folders, there will never be any overflow 436 for (ShortcutInfo item: overflow) { 437 mInfo.remove(item, false); 438 LauncherModel.deleteItemFromDatabase(mLauncher, item); 439 } 440 441 DragLayer.LayoutParams lp = (DragLayer.LayoutParams) getLayoutParams(); 442 if (lp == null) { 443 lp = new DragLayer.LayoutParams(0, 0); 444 lp.customPosition = true; 445 setLayoutParams(lp); 446 } 447 centerAboutIcon(); 448 449 mItemsInvalidated = true; 450 updateTextViewFocus(); 451 mInfo.addListener(this); 452 453 if (!sDefaultFolderName.contentEquals(mInfo.title)) { 454 mFolderName.setText(mInfo.title); 455 } else { 456 mFolderName.setText(""); 457 } 458 459 // In case any children didn't come across during loading, clean up the folder accordingly 460 mFolderIcon.post(new Runnable() { 461 public void run() { 462 if (getItemCount() <= 1) { 463 replaceFolderWithFinalItem(); 464 } 465 } 466 }); 467 } 468 469 /** 470 * Creates a new UserFolder, inflated from R.layout.user_folder. 471 * 472 * @param launcher The main activity. 473 * 474 * @return A new UserFolder. 475 */ 476 @SuppressLint("InflateParams") 477 static Folder fromXml(Launcher launcher) { 478 return (Folder) launcher.getLayoutInflater().inflate( 479 FeatureFlags.LAUNCHER3_DISABLE_ICON_NORMALIZATION 480 ? R.layout.user_folder : R.layout.user_folder_icon_normalized, null); 481 } 482 483 /** 484 * This method is intended to make the UserFolder to be visually identical in size and position 485 * to its associated FolderIcon. This allows for a seamless transition into the expanded state. 486 */ 487 private void positionAndSizeAsIcon() { 488 if (!(getParent() instanceof DragLayer)) return; 489 setScaleX(0.8f); 490 setScaleY(0.8f); 491 setAlpha(0f); 492 mState = STATE_SMALL; 493 } 494 495 private void prepareReveal() { 496 setScaleX(1f); 497 setScaleY(1f); 498 setAlpha(1f); 499 mState = STATE_SMALL; 500 } 501 502 public void animateOpen() { 503 if (!(getParent() instanceof DragLayer)) return; 504 505 mContent.completePendingPageChanges(); 506 if (!mDragInProgress) { 507 // Open on the first page. 508 mContent.snapToPageImmediately(0); 509 } 510 511 // This is set to true in close(), but isn't reset to false until onDropCompleted(). This 512 // leads to an inconsistent state if you drag out of the folder and drag back in without 513 // dropping. One resulting issue is that replaceFolderWithFinalItem() can be called twice. 514 mDeleteFolderOnDropCompleted = false; 515 516 Animator openFolderAnim = null; 517 final Runnable onCompleteRunnable; 518 if (!Utilities.ATLEAST_LOLLIPOP) { 519 positionAndSizeAsIcon(); 520 centerAboutIcon(); 521 522 final ObjectAnimator oa = LauncherAnimUtils.ofViewAlphaAndScale(this, 1, 1, 1); 523 oa.setDuration(mExpandDuration); 524 openFolderAnim = oa; 525 526 setLayerType(LAYER_TYPE_HARDWARE, null); 527 onCompleteRunnable = new Runnable() { 528 @Override 529 public void run() { 530 setLayerType(LAYER_TYPE_NONE, null); 531 } 532 }; 533 } else { 534 prepareReveal(); 535 centerAboutIcon(); 536 537 AnimatorSet anim = LauncherAnimUtils.createAnimatorSet(); 538 int width = getPaddingLeft() + getPaddingRight() + mContent.getDesiredWidth(); 539 int height = getFolderHeight(); 540 541 float transX = - 0.075f * (width / 2 - getPivotX()); 542 float transY = - 0.075f * (height / 2 - getPivotY()); 543 setTranslationX(transX); 544 setTranslationY(transY); 545 PropertyValuesHolder tx = PropertyValuesHolder.ofFloat(TRANSLATION_X, transX, 0); 546 PropertyValuesHolder ty = PropertyValuesHolder.ofFloat(TRANSLATION_Y, transY, 0); 547 548 Animator drift = ObjectAnimator.ofPropertyValuesHolder(this, tx, ty); 549 drift.setDuration(mMaterialExpandDuration); 550 drift.setStartDelay(mMaterialExpandStagger); 551 drift.setInterpolator(new LogDecelerateInterpolator(100, 0)); 552 553 int rx = (int) Math.max(Math.max(width - getPivotX(), 0), getPivotX()); 554 int ry = (int) Math.max(Math.max(height - getPivotY(), 0), getPivotY()); 555 float radius = (float) Math.hypot(rx, ry); 556 557 Animator reveal = new CircleRevealOutlineProvider((int) getPivotX(), 558 (int) getPivotY(), 0, radius).createRevealAnimator(this); 559 reveal.setDuration(mMaterialExpandDuration); 560 reveal.setInterpolator(new LogDecelerateInterpolator(100, 0)); 561 562 mContent.setAlpha(0f); 563 Animator iconsAlpha = ObjectAnimator.ofFloat(mContent, "alpha", 0f, 1f); 564 iconsAlpha.setDuration(mMaterialExpandDuration); 565 iconsAlpha.setStartDelay(mMaterialExpandStagger); 566 iconsAlpha.setInterpolator(new AccelerateInterpolator(1.5f)); 567 568 mFooter.setAlpha(0f); 569 Animator textAlpha = ObjectAnimator.ofFloat(mFooter, "alpha", 0f, 1f); 570 textAlpha.setDuration(mMaterialExpandDuration); 571 textAlpha.setStartDelay(mMaterialExpandStagger); 572 textAlpha.setInterpolator(new AccelerateInterpolator(1.5f)); 573 574 anim.play(drift); 575 anim.play(iconsAlpha); 576 anim.play(textAlpha); 577 anim.play(reveal); 578 579 openFolderAnim = anim; 580 581 mContent.setLayerType(LAYER_TYPE_HARDWARE, null); 582 mFooter.setLayerType(LAYER_TYPE_HARDWARE, null); 583 onCompleteRunnable = new Runnable() { 584 @Override 585 public void run() { 586 mContent.setLayerType(LAYER_TYPE_NONE, null); 587 mFooter.setLayerType(LAYER_TYPE_NONE, null); 588 mLauncher.getUserEventDispatcher().resetElapsedContainerMillis(); 589 } 590 }; 591 } 592 openFolderAnim.addListener(new AnimatorListenerAdapter() { 593 @Override 594 public void onAnimationStart(Animator animation) { 595 sendCustomAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED, 596 mContent.getAccessibilityDescription()); 597 mState = STATE_ANIMATING; 598 } 599 @Override 600 public void onAnimationEnd(Animator animation) { 601 mState = STATE_OPEN; 602 603 onCompleteRunnable.run(); 604 mContent.setFocusOnFirstChild(); 605 } 606 }); 607 608 // Footer animation 609 if (mContent.getPageCount() > 1 && !mInfo.hasOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION)) { 610 int footerWidth = mContent.getDesiredWidth() 611 - mFooter.getPaddingLeft() - mFooter.getPaddingRight(); 612 613 float textWidth = mFolderName.getPaint().measureText(mFolderName.getText().toString()); 614 float translation = (footerWidth - textWidth) / 2; 615 mFolderName.setTranslationX(mContent.mIsRtl ? -translation : translation); 616 mPageIndicator.prepareEntryAnimation(); 617 618 // Do not update the flag if we are in drag mode. The flag will be updated, when we 619 // actually drop the icon. 620 final boolean updateAnimationFlag = !mDragInProgress; 621 openFolderAnim.addListener(new AnimatorListenerAdapter() { 622 623 @SuppressLint("InlinedApi") 624 @Override 625 public void onAnimationEnd(Animator animation) { 626 mFolderName.animate().setDuration(FOLDER_NAME_ANIMATION_DURATION) 627 .translationX(0) 628 .setInterpolator(Utilities.ATLEAST_LOLLIPOP ? 629 AnimationUtils.loadInterpolator(mLauncher, 630 android.R.interpolator.fast_out_slow_in) 631 : new LogDecelerateInterpolator(100, 0)); 632 mPageIndicator.playEntryAnimation(); 633 634 if (updateAnimationFlag) { 635 mInfo.setOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION, true, mLauncher); 636 } 637 } 638 }); 639 } else { 640 mFolderName.setTranslationX(0); 641 } 642 643 mPageIndicator.stopAllAnimations(); 644 openFolderAnim.start(); 645 646 // Make sure the folder picks up the last drag move even if the finger doesn't move. 647 if (mDragController.isDragging()) { 648 mDragController.forceTouchMove(); 649 } 650 651 mContent.verifyVisibleHighResIcons(mContent.getNextPage()); 652 } 653 654 public void beginExternalDrag(ShortcutInfo item) { 655 mCurrentDragInfo = item; 656 mEmptyCellRank = mContent.allocateRankForNewItem(item); 657 mIsExternalDrag = true; 658 mDragInProgress = true; 659 660 // Since this folder opened by another controller, it might not get onDrop or 661 // onDropComplete. Perform cleanup once drag-n-drop ends. 662 mDragController.addDragListener(this); 663 } 664 665 @Override 666 public void onDragStart(DragSource source, ItemInfo info, int dragAction) { } 667 668 @Override 669 public void onDragEnd() { 670 if (mIsExternalDrag && mDragInProgress) { 671 completeDragExit(); 672 } 673 mDragController.removeDragListener(this); 674 } 675 676 @Thunk void sendCustomAccessibilityEvent(int type, String text) { 677 AccessibilityManager accessibilityManager = (AccessibilityManager) 678 getContext().getSystemService(Context.ACCESSIBILITY_SERVICE); 679 if (accessibilityManager.isEnabled()) { 680 AccessibilityEvent event = AccessibilityEvent.obtain(type); 681 onInitializeAccessibilityEvent(event); 682 event.getText().add(text); 683 accessibilityManager.sendAccessibilityEvent(event); 684 } 685 } 686 687 public void animateClosed() { 688 if (!(getParent() instanceof DragLayer)) return; 689 final ObjectAnimator oa = LauncherAnimUtils.ofViewAlphaAndScale(this, 0, 0.9f, 0.9f); 690 oa.addListener(new AnimatorListenerAdapter() { 691 @Override 692 public void onAnimationEnd(Animator animation) { 693 setLayerType(LAYER_TYPE_NONE, null); 694 close(true); 695 } 696 @Override 697 public void onAnimationStart(Animator animation) { 698 sendCustomAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED, 699 getContext().getString(R.string.folder_closed)); 700 mState = STATE_ANIMATING; 701 } 702 }); 703 oa.setDuration(mExpandDuration); 704 setLayerType(LAYER_TYPE_HARDWARE, null); 705 oa.start(); 706 } 707 708 public void close(boolean wasAnimated) { 709 // TODO: Clear all active animations. 710 DragLayer parent = (DragLayer) getParent(); 711 if (parent != null) { 712 parent.removeView(this); 713 } 714 mDragController.removeDropTarget(this); 715 clearFocus(); 716 if (wasAnimated) { 717 mFolderIcon.requestFocus(); 718 } 719 720 if (mRearrangeOnClose) { 721 rearrangeChildren(); 722 mRearrangeOnClose = false; 723 } 724 if (getItemCount() <= 1) { 725 if (!mDragInProgress && !mSuppressFolderDeletion) { 726 replaceFolderWithFinalItem(); 727 } else if (mDragInProgress) { 728 mDeleteFolderOnDropCompleted = true; 729 } 730 } 731 mSuppressFolderDeletion = false; 732 clearDragInfo(); 733 mState = STATE_SMALL; 734 } 735 736 public boolean acceptDrop(DragObject d) { 737 final ItemInfo item = d.dragInfo; 738 final int itemType = item.itemType; 739 return ((itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || 740 itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT || 741 itemType == LauncherSettings.Favorites.ITEM_TYPE_DEEP_SHORTCUT) && 742 !isFull()); 743 } 744 745 public void onDragEnter(DragObject d) { 746 mPrevTargetRank = -1; 747 mOnExitAlarm.cancelAlarm(); 748 // Get the area offset such that the folder only closes if half the drag icon width 749 // is outside the folder area 750 mScrollAreaOffset = d.dragView.getDragRegionWidth() / 2 - d.xOffset; 751 } 752 753 OnAlarmListener mReorderAlarmListener = new OnAlarmListener() { 754 public void onAlarm(Alarm alarm) { 755 mContent.realTimeReorder(mEmptyCellRank, mTargetRank); 756 mEmptyCellRank = mTargetRank; 757 } 758 }; 759 760 @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1) 761 public boolean isLayoutRtl() { 762 return (getLayoutDirection() == LAYOUT_DIRECTION_RTL); 763 } 764 765 @Override 766 public void onDragOver(DragObject d) { 767 onDragOver(d, REORDER_DELAY); 768 } 769 770 private int getTargetRank(DragObject d, float[] recycle) { 771 recycle = d.getVisualCenter(recycle); 772 return mContent.findNearestArea( 773 (int) recycle[0] - getPaddingLeft(), (int) recycle[1] - getPaddingTop()); 774 } 775 776 @Thunk void onDragOver(DragObject d, int reorderDelay) { 777 if (mScrollPauseAlarm.alarmPending()) { 778 return; 779 } 780 final float[] r = new float[2]; 781 mTargetRank = getTargetRank(d, r); 782 783 if (mTargetRank != mPrevTargetRank) { 784 mReorderAlarm.cancelAlarm(); 785 mReorderAlarm.setOnAlarmListener(mReorderAlarmListener); 786 mReorderAlarm.setAlarm(REORDER_DELAY); 787 mPrevTargetRank = mTargetRank; 788 789 if (d.stateAnnouncer != null) { 790 d.stateAnnouncer.announce(getContext().getString(R.string.move_to_position, 791 mTargetRank + 1)); 792 } 793 } 794 795 float x = r[0]; 796 int currentPage = mContent.getNextPage(); 797 798 float cellOverlap = mContent.getCurrentCellLayout().getCellWidth() 799 * ICON_OVERSCROLL_WIDTH_FACTOR; 800 boolean isOutsideLeftEdge = x < cellOverlap; 801 boolean isOutsideRightEdge = x > (getWidth() - cellOverlap); 802 803 if (currentPage > 0 && (mContent.mIsRtl ? isOutsideRightEdge : isOutsideLeftEdge)) { 804 showScrollHint(DragController.SCROLL_LEFT, d); 805 } else if (currentPage < (mContent.getPageCount() - 1) 806 && (mContent.mIsRtl ? isOutsideLeftEdge : isOutsideRightEdge)) { 807 showScrollHint(DragController.SCROLL_RIGHT, d); 808 } else { 809 mOnScrollHintAlarm.cancelAlarm(); 810 if (mScrollHintDir != DragController.SCROLL_NONE) { 811 mContent.clearScrollHint(); 812 mScrollHintDir = DragController.SCROLL_NONE; 813 } 814 } 815 } 816 817 private void showScrollHint(int direction, DragObject d) { 818 // Show scroll hint on the right 819 if (mScrollHintDir != direction) { 820 mContent.showScrollHint(direction); 821 mScrollHintDir = direction; 822 } 823 824 // Set alarm for when the hint is complete 825 if (!mOnScrollHintAlarm.alarmPending() || mCurrentScrollDir != direction) { 826 mCurrentScrollDir = direction; 827 mOnScrollHintAlarm.cancelAlarm(); 828 mOnScrollHintAlarm.setOnAlarmListener(new OnScrollHintListener(d)); 829 mOnScrollHintAlarm.setAlarm(SCROLL_HINT_DURATION); 830 831 mReorderAlarm.cancelAlarm(); 832 mTargetRank = mEmptyCellRank; 833 } 834 } 835 836 OnAlarmListener mOnExitAlarmListener = new OnAlarmListener() { 837 public void onAlarm(Alarm alarm) { 838 completeDragExit(); 839 } 840 }; 841 842 public void completeDragExit() { 843 if (mInfo.opened) { 844 mLauncher.closeFolder(); 845 mRearrangeOnClose = true; 846 } else if (mState == STATE_ANIMATING) { 847 mRearrangeOnClose = true; 848 } else { 849 rearrangeChildren(); 850 clearDragInfo(); 851 } 852 } 853 854 private void clearDragInfo() { 855 mCurrentDragInfo = null; 856 mCurrentDragView = null; 857 mSuppressOnAdd = false; 858 mIsExternalDrag = false; 859 } 860 861 public void onDragExit(DragObject d) { 862 // We only close the folder if this is a true drag exit, ie. not because 863 // a drop has occurred above the folder. 864 if (!d.dragComplete) { 865 mOnExitAlarm.setOnAlarmListener(mOnExitAlarmListener); 866 mOnExitAlarm.setAlarm(ON_EXIT_CLOSE_DELAY); 867 } 868 mReorderAlarm.cancelAlarm(); 869 870 mOnScrollHintAlarm.cancelAlarm(); 871 mScrollPauseAlarm.cancelAlarm(); 872 if (mScrollHintDir != DragController.SCROLL_NONE) { 873 mContent.clearScrollHint(); 874 mScrollHintDir = DragController.SCROLL_NONE; 875 } 876 } 877 878 /** 879 * When performing an accessibility drop, onDrop is sent immediately after onDragEnter. So we 880 * need to complete all transient states based on timers. 881 */ 882 @Override 883 public void prepareAccessibilityDrop() { 884 if (mReorderAlarm.alarmPending()) { 885 mReorderAlarm.cancelAlarm(); 886 mReorderAlarmListener.onAlarm(mReorderAlarm); 887 } 888 } 889 890 public void onDropCompleted(final View target, final DragObject d, 891 final boolean isFlingToDelete, final boolean success) { 892 if (mDeferDropAfterUninstall) { 893 Log.d(TAG, "Deferred handling drop because waiting for uninstall."); 894 mDeferredAction = new Runnable() { 895 public void run() { 896 onDropCompleted(target, d, isFlingToDelete, success); 897 mDeferredAction = null; 898 } 899 }; 900 return; 901 } 902 903 boolean beingCalledAfterUninstall = mDeferredAction != null; 904 boolean successfulDrop = 905 success && (!beingCalledAfterUninstall || mUninstallSuccessful); 906 907 if (successfulDrop) { 908 if (mDeleteFolderOnDropCompleted && !mItemAddedBackToSelfViaIcon && target != this) { 909 replaceFolderWithFinalItem(); 910 } 911 } else { 912 // The drag failed, we need to return the item to the folder 913 ShortcutInfo info = (ShortcutInfo) d.dragInfo; 914 View icon = (mCurrentDragView != null && mCurrentDragView.getTag() == info) 915 ? mCurrentDragView : mContent.createNewView(info); 916 ArrayList<View> views = getItemsInReadingOrder(); 917 views.add(info.rank, icon); 918 mContent.arrangeChildren(views, views.size()); 919 mItemsInvalidated = true; 920 921 mSuppressOnAdd = true; 922 mFolderIcon.onDrop(d); 923 mSuppressOnAdd = false; 924 } 925 926 if (target != this) { 927 if (mOnExitAlarm.alarmPending()) { 928 mOnExitAlarm.cancelAlarm(); 929 if (!successfulDrop) { 930 mSuppressFolderDeletion = true; 931 } 932 mScrollPauseAlarm.cancelAlarm(); 933 completeDragExit(); 934 } 935 } 936 937 mDeleteFolderOnDropCompleted = false; 938 mDragInProgress = false; 939 mItemAddedBackToSelfViaIcon = false; 940 mCurrentDragInfo = null; 941 mCurrentDragView = null; 942 mSuppressOnAdd = false; 943 944 // Reordering may have occured, and we need to save the new item locations. We do this once 945 // at the end to prevent unnecessary database operations. 946 updateItemLocationsInDatabaseBatch(); 947 948 // Use the item count to check for multi-page as the folder UI may not have 949 // been refreshed yet. 950 if (getItemCount() <= mContent.itemsPerPage()) { 951 // Show the animation, next time something is added to the folder. 952 mInfo.setOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION, false, mLauncher); 953 } 954 955 if (!isFlingToDelete) { 956 // Fling to delete already exits spring loaded mode after the animation finishes. 957 mLauncher.exitSpringLoadedDragModeDelayed(successfulDrop, 958 Launcher.EXIT_SPRINGLOADED_MODE_SHORT_TIMEOUT, null); 959 } 960 } 961 962 @Override 963 public void deferCompleteDropAfterUninstallActivity() { 964 mDeferDropAfterUninstall = true; 965 } 966 967 @Override 968 public void onDragObjectRemoved(boolean success) { 969 mDeferDropAfterUninstall = false; 970 mUninstallSuccessful = success; 971 if (mDeferredAction != null) { 972 mDeferredAction.run(); 973 } 974 } 975 976 @Override 977 public float getIntrinsicIconScaleFactor() { 978 return 1f; 979 } 980 981 @Override 982 public boolean supportsFlingToDelete() { 983 return true; 984 } 985 986 @Override 987 public boolean supportsAppInfoDropTarget() { 988 return !FeatureFlags.LAUNCHER3_LEGACY_WORKSPACE_DND; 989 } 990 991 @Override 992 public boolean supportsDeleteDropTarget() { 993 return true; 994 } 995 996 @Override 997 public void onFlingToDelete(DragObject d, PointF vec) { 998 // Do nothing 999 } 1000 1001 @Override 1002 public void onFlingToDeleteCompleted() { 1003 // Do nothing 1004 } 1005 1006 private void updateItemLocationsInDatabaseBatch() { 1007 ArrayList<View> list = getItemsInReadingOrder(); 1008 ArrayList<ItemInfo> items = new ArrayList<ItemInfo>(); 1009 for (int i = 0; i < list.size(); i++) { 1010 View v = list.get(i); 1011 ItemInfo info = (ItemInfo) v.getTag(); 1012 info.rank = i; 1013 items.add(info); 1014 } 1015 1016 LauncherModel.moveItemsInDatabase(mLauncher, items, mInfo.id, 0); 1017 } 1018 1019 public void notifyDrop() { 1020 if (mDragInProgress) { 1021 mItemAddedBackToSelfViaIcon = true; 1022 } 1023 } 1024 1025 public boolean isDropEnabled() { 1026 return true; 1027 } 1028 1029 public boolean isFull() { 1030 return mContent.isFull(); 1031 } 1032 1033 private void centerAboutIcon() { 1034 DeviceProfile grid = mLauncher.getDeviceProfile(); 1035 1036 DragLayer.LayoutParams lp = (DragLayer.LayoutParams) getLayoutParams(); 1037 DragLayer parent = (DragLayer) mLauncher.findViewById(R.id.drag_layer); 1038 int width = getPaddingLeft() + getPaddingRight() + mContent.getDesiredWidth(); 1039 int height = getFolderHeight(); 1040 1041 float scale = parent.getDescendantRectRelativeToSelf(mFolderIcon, sTempRect); 1042 int centerX = sTempRect.centerX(); 1043 int centerY = sTempRect.centerY(); 1044 int centeredLeft = centerX - width / 2; 1045 int centeredTop = centerY - height / 2; 1046 1047 // We need to bound the folder to the currently visible workspace area 1048 mLauncher.getWorkspace().getPageAreaRelativeToDragLayer(sTempRect); 1049 int left = Math.min(Math.max(sTempRect.left, centeredLeft), 1050 sTempRect.right- width); 1051 int top = Math.min(Math.max(sTempRect.top, centeredTop), 1052 sTempRect.bottom - height); 1053 1054 int distFromEdgeOfScreen = mLauncher.getWorkspace().getPaddingLeft() + getPaddingLeft(); 1055 1056 if (grid.isPhone && (grid.availableWidthPx - width) < 4 * distFromEdgeOfScreen) { 1057 // Center the folder if it is very close to being centered anyway, by virtue of 1058 // filling the majority of the viewport. ie. remove it from the uncanny valley 1059 // of centeredness. 1060 left = (grid.availableWidthPx - width) / 2; 1061 } else if (width >= sTempRect.width()) { 1062 // If the folder doesn't fit within the bounds, center it about the desired bounds 1063 left = sTempRect.left + (sTempRect.width() - width) / 2; 1064 } 1065 if (height >= sTempRect.height()) { 1066 // Folder height is greater than page height, center on page 1067 top = sTempRect.top + (sTempRect.height() - height) / 2; 1068 } else { 1069 // Folder height is less than page height, so bound it to the absolute open folder 1070 // bounds if necessary 1071 Rect folderBounds = grid.getAbsoluteOpenFolderBounds(); 1072 left = Math.max(folderBounds.left, Math.min(left, folderBounds.right - width)); 1073 top = Math.max(folderBounds.top, Math.min(top, folderBounds.bottom - height)); 1074 } 1075 1076 int folderPivotX = width / 2 + (centeredLeft - left); 1077 int folderPivotY = height / 2 + (centeredTop - top); 1078 setPivotX(folderPivotX); 1079 setPivotY(folderPivotY); 1080 mFolderIconPivotX = (int) (mFolderIcon.getMeasuredWidth() * 1081 (1.0f * folderPivotX / width)); 1082 mFolderIconPivotY = (int) (mFolderIcon.getMeasuredHeight() * 1083 (1.0f * folderPivotY / height)); 1084 1085 lp.width = width; 1086 lp.height = height; 1087 lp.x = left; 1088 lp.y = top; 1089 } 1090 1091 public float getPivotXForIconAnimation() { 1092 return mFolderIconPivotX; 1093 } 1094 public float getPivotYForIconAnimation() { 1095 return mFolderIconPivotY; 1096 } 1097 1098 private int getContentAreaHeight() { 1099 DeviceProfile grid = mLauncher.getDeviceProfile(); 1100 int maxContentAreaHeight = grid.availableHeightPx 1101 - grid.getTotalWorkspacePadding().y - mFooterHeight; 1102 int height = Math.min(maxContentAreaHeight, 1103 mContent.getDesiredHeight()); 1104 return Math.max(height, MIN_CONTENT_DIMEN); 1105 } 1106 1107 private int getContentAreaWidth() { 1108 return Math.max(mContent.getDesiredWidth(), MIN_CONTENT_DIMEN); 1109 } 1110 1111 private int getFolderHeight() { 1112 return getFolderHeight(getContentAreaHeight()); 1113 } 1114 1115 private int getFolderHeight(int contentAreaHeight) { 1116 return getPaddingTop() + getPaddingBottom() + contentAreaHeight + mFooterHeight; 1117 } 1118 1119 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 1120 int contentWidth = getContentAreaWidth(); 1121 int contentHeight = getContentAreaHeight(); 1122 1123 int contentAreaWidthSpec = MeasureSpec.makeMeasureSpec(contentWidth, MeasureSpec.EXACTLY); 1124 int contentAreaHeightSpec = MeasureSpec.makeMeasureSpec(contentHeight, MeasureSpec.EXACTLY); 1125 1126 mContent.setFixedSize(contentWidth, contentHeight); 1127 mContent.measure(contentAreaWidthSpec, contentAreaHeightSpec); 1128 1129 if (mContent.getChildCount() > 0) { 1130 int cellIconGap = (mContent.getPageAt(0).getCellWidth() 1131 - mLauncher.getDeviceProfile().iconSizePx) / 2; 1132 mFooter.setPadding(mContent.getPaddingLeft() + cellIconGap, 1133 mFooter.getPaddingTop(), 1134 mContent.getPaddingRight() + cellIconGap, 1135 mFooter.getPaddingBottom()); 1136 } 1137 mFooter.measure(contentAreaWidthSpec, 1138 MeasureSpec.makeMeasureSpec(mFooterHeight, MeasureSpec.EXACTLY)); 1139 1140 int folderWidth = getPaddingLeft() + getPaddingRight() + contentWidth; 1141 int folderHeight = getFolderHeight(contentHeight); 1142 setMeasuredDimension(folderWidth, folderHeight); 1143 } 1144 1145 /** 1146 * Rearranges the children based on their rank. 1147 */ 1148 public void rearrangeChildren() { 1149 rearrangeChildren(-1); 1150 } 1151 1152 /** 1153 * Rearranges the children based on their rank. 1154 * @param itemCount if greater than the total children count, empty spaces are left at the end, 1155 * otherwise it is ignored. 1156 */ 1157 public void rearrangeChildren(int itemCount) { 1158 ArrayList<View> views = getItemsInReadingOrder(); 1159 mContent.arrangeChildren(views, Math.max(itemCount, views.size())); 1160 mItemsInvalidated = true; 1161 } 1162 1163 public int getItemCount() { 1164 return mContent.getItemCount(); 1165 } 1166 1167 @Thunk void replaceFolderWithFinalItem() { 1168 // Add the last remaining child to the workspace in place of the folder 1169 Runnable onCompleteRunnable = new Runnable() { 1170 @Override 1171 public void run() { 1172 int itemCount = mInfo.contents.size(); 1173 if (itemCount <= 1) { 1174 View newIcon = null; 1175 1176 if (itemCount == 1) { 1177 // Move the item from the folder to the workspace, in the position of the 1178 // folder 1179 CellLayout cellLayout = mLauncher.getCellLayout(mInfo.container, 1180 mInfo.screenId); 1181 ShortcutInfo finalItem = mInfo.contents.remove(0); 1182 newIcon = mLauncher.createShortcut(cellLayout, finalItem); 1183 LauncherModel.addOrMoveItemInDatabase(mLauncher, finalItem, mInfo.container, 1184 mInfo.screenId, mInfo.cellX, mInfo.cellY); 1185 } 1186 1187 // Remove the folder 1188 mLauncher.removeItem(mFolderIcon, mInfo, true /* deleteFromDb */); 1189 if (mFolderIcon instanceof DropTarget) { 1190 mDragController.removeDropTarget((DropTarget) mFolderIcon); 1191 } 1192 1193 if (newIcon != null) { 1194 // We add the child after removing the folder to prevent both from existing 1195 // at the same time in the CellLayout. We need to add the new item with 1196 // addInScreenFromBind() to ensure that hotseat items are placed correctly. 1197 mLauncher.getWorkspace().addInScreenFromBind(newIcon, mInfo.container, 1198 mInfo.screenId, mInfo.cellX, mInfo.cellY, mInfo.spanX, mInfo.spanY); 1199 1200 // Focus the newly created child 1201 newIcon.requestFocus(); 1202 } 1203 } 1204 } 1205 }; 1206 View finalChild = mContent.getLastItem(); 1207 if (finalChild != null) { 1208 mFolderIcon.performDestroyAnimation(finalChild, onCompleteRunnable); 1209 } else { 1210 onCompleteRunnable.run(); 1211 } 1212 mDestroyed = true; 1213 } 1214 1215 public boolean isDestroyed() { 1216 return mDestroyed; 1217 } 1218 1219 // This method keeps track of the first and last item in the folder for the purposes 1220 // of keyboard focus 1221 public void updateTextViewFocus() { 1222 final View firstChild = mContent.getFirstItem(); 1223 final View lastChild = mContent.getLastItem(); 1224 if (firstChild != null && lastChild != null) { 1225 mFolderName.setNextFocusDownId(lastChild.getId()); 1226 mFolderName.setNextFocusRightId(lastChild.getId()); 1227 mFolderName.setNextFocusLeftId(lastChild.getId()); 1228 mFolderName.setNextFocusUpId(lastChild.getId()); 1229 // Hitting TAB from the folder name wraps around to the first item on the current 1230 // folder page, and hitting SHIFT+TAB from that item wraps back to the folder name. 1231 mFolderName.setNextFocusForwardId(firstChild.getId()); 1232 // When clicking off the folder when editing the name, this Folder gains focus. When 1233 // pressing an arrow key from that state, give the focus to the first item. 1234 this.setNextFocusDownId(firstChild.getId()); 1235 this.setNextFocusRightId(firstChild.getId()); 1236 this.setNextFocusLeftId(firstChild.getId()); 1237 this.setNextFocusUpId(firstChild.getId()); 1238 // When pressing shift+tab in the above state, give the focus to the last item. 1239 setOnKeyListener(new OnKeyListener() { 1240 @Override 1241 public boolean onKey(View v, int keyCode, KeyEvent event) { 1242 boolean isShiftPlusTab = keyCode == KeyEvent.KEYCODE_TAB && 1243 event.hasModifiers(KeyEvent.META_SHIFT_ON); 1244 if (isShiftPlusTab && Folder.this.isFocused()) { 1245 return lastChild.requestFocus(); 1246 } 1247 return false; 1248 } 1249 }); 1250 } 1251 } 1252 1253 public void onDrop(DragObject d) { 1254 Runnable cleanUpRunnable = null; 1255 1256 // If we are coming from All Apps space, we defer removing the extra empty screen 1257 // until the folder closes 1258 if (d.dragSource != mLauncher.getWorkspace() && !(d.dragSource instanceof Folder)) { 1259 cleanUpRunnable = new Runnable() { 1260 @Override 1261 public void run() { 1262 mLauncher.exitSpringLoadedDragModeDelayed(true, 1263 Launcher.EXIT_SPRINGLOADED_MODE_SHORT_TIMEOUT, 1264 null); 1265 } 1266 }; 1267 } 1268 1269 // If the icon was dropped while the page was being scrolled, we need to compute 1270 // the target location again such that the icon is placed of the final page. 1271 if (!mContent.rankOnCurrentPage(mEmptyCellRank)) { 1272 // Reorder again. 1273 mTargetRank = getTargetRank(d, null); 1274 1275 // Rearrange items immediately. 1276 mReorderAlarmListener.onAlarm(mReorderAlarm); 1277 1278 mOnScrollHintAlarm.cancelAlarm(); 1279 mScrollPauseAlarm.cancelAlarm(); 1280 } 1281 mContent.completePendingPageChanges(); 1282 1283 View currentDragView; 1284 ShortcutInfo si = mCurrentDragInfo; 1285 if (mIsExternalDrag) { 1286 currentDragView = mContent.createAndAddViewForRank(si, mEmptyCellRank); 1287 // Actually move the item in the database if it was an external drag. Call this 1288 // before creating the view, so that ShortcutInfo is updated appropriately. 1289 LauncherModel.addOrMoveItemInDatabase( 1290 mLauncher, si, mInfo.id, 0, si.cellX, si.cellY); 1291 1292 // We only need to update the locations if it doesn't get handled in #onDropCompleted. 1293 if (d.dragSource != this) { 1294 updateItemLocationsInDatabaseBatch(); 1295 } 1296 mIsExternalDrag = false; 1297 } else { 1298 currentDragView = mCurrentDragView; 1299 mContent.addViewForRank(currentDragView, si, mEmptyCellRank); 1300 } 1301 1302 if (d.dragView.hasDrawn()) { 1303 1304 // Temporarily reset the scale such that the animation target gets calculated correctly. 1305 float scaleX = getScaleX(); 1306 float scaleY = getScaleY(); 1307 setScaleX(1.0f); 1308 setScaleY(1.0f); 1309 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, currentDragView, 1310 cleanUpRunnable, null); 1311 setScaleX(scaleX); 1312 setScaleY(scaleY); 1313 } else { 1314 d.deferDragViewCleanupPostAnimation = false; 1315 currentDragView.setVisibility(VISIBLE); 1316 } 1317 mItemsInvalidated = true; 1318 rearrangeChildren(); 1319 1320 // Temporarily suppress the listener, as we did all the work already here. 1321 mSuppressOnAdd = true; 1322 mInfo.add(si, false); 1323 mSuppressOnAdd = false; 1324 // Clear the drag info, as it is no longer being dragged. 1325 mCurrentDragInfo = null; 1326 mDragInProgress = false; 1327 1328 if (mContent.getPageCount() > 1) { 1329 // The animation has already been shown while opening the folder. 1330 mInfo.setOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION, true, mLauncher); 1331 } 1332 } 1333 1334 // This is used so the item doesn't immediately appear in the folder when added. In one case 1335 // we need to create the illusion that the item isn't added back to the folder yet, to 1336 // to correspond to the animation of the icon back into the folder. This is 1337 public void hideItem(ShortcutInfo info) { 1338 View v = getViewForInfo(info); 1339 v.setVisibility(INVISIBLE); 1340 } 1341 public void showItem(ShortcutInfo info) { 1342 View v = getViewForInfo(info); 1343 v.setVisibility(VISIBLE); 1344 } 1345 1346 @Override 1347 public void onAdd(ShortcutInfo item) { 1348 // If the item was dropped onto this open folder, we have done the work associated 1349 // with adding the item to the folder, as indicated by mSuppressOnAdd being set 1350 if (mSuppressOnAdd) return; 1351 mContent.createAndAddViewForRank(item, mContent.allocateRankForNewItem(item)); 1352 mItemsInvalidated = true; 1353 LauncherModel.addOrMoveItemInDatabase( 1354 mLauncher, item, mInfo.id, 0, item.cellX, item.cellY); 1355 } 1356 1357 public void onRemove(ShortcutInfo item) { 1358 mItemsInvalidated = true; 1359 // If this item is being dragged from this open folder, we have already handled 1360 // the work associated with removing the item, so we don't have to do anything here. 1361 if (item == mCurrentDragInfo) return; 1362 View v = getViewForInfo(item); 1363 mContent.removeItem(v); 1364 if (mState == STATE_ANIMATING) { 1365 mRearrangeOnClose = true; 1366 } else { 1367 rearrangeChildren(); 1368 } 1369 if (getItemCount() <= 1) { 1370 if (mInfo.opened) { 1371 mLauncher.closeFolder(this, true); 1372 } else { 1373 replaceFolderWithFinalItem(); 1374 } 1375 } 1376 } 1377 1378 private View getViewForInfo(final ShortcutInfo item) { 1379 return mContent.iterateOverItems(new ItemOperator() { 1380 1381 @Override 1382 public boolean evaluate(ItemInfo info, View view) { 1383 return info == item; 1384 } 1385 }); 1386 } 1387 1388 @Override 1389 public void onItemsChanged(boolean animate) { 1390 updateTextViewFocus(); 1391 } 1392 1393 public void onTitleChanged(CharSequence title) { 1394 } 1395 1396 public ArrayList<View> getItemsInReadingOrder() { 1397 if (mItemsInvalidated) { 1398 mItemsInReadingOrder.clear(); 1399 mContent.iterateOverItems(new ItemOperator() { 1400 1401 @Override 1402 public boolean evaluate(ItemInfo info, View view) { 1403 mItemsInReadingOrder.add(view); 1404 return false; 1405 } 1406 }); 1407 mItemsInvalidated = false; 1408 } 1409 return mItemsInReadingOrder; 1410 } 1411 1412 public void onFocusChange(View v, boolean hasFocus) { 1413 if (v == mFolderName) { 1414 if (hasFocus) { 1415 startEditingFolderName(); 1416 } else { 1417 dismissEditingName(); 1418 } 1419 } 1420 } 1421 1422 @Override 1423 public void getHitRectRelativeToDragLayer(Rect outRect) { 1424 getHitRect(outRect); 1425 outRect.left -= mScrollAreaOffset; 1426 outRect.right += mScrollAreaOffset; 1427 } 1428 1429 @Override 1430 public void fillInLaunchSourceData(View v, ItemInfo info, Target target, Target targetParent) { 1431 target.gridX = info.cellX; 1432 target.gridY = info.cellY; 1433 target.pageIndex = mContent.getCurrentPage(); 1434 targetParent.containerType = LauncherLogProto.FOLDER; 1435 } 1436 1437 private class OnScrollHintListener implements OnAlarmListener { 1438 1439 private final DragObject mDragObject; 1440 1441 OnScrollHintListener(DragObject object) { 1442 mDragObject = object; 1443 } 1444 1445 /** 1446 * Scroll hint has been shown long enough. Now scroll to appropriate page. 1447 */ 1448 @Override 1449 public void onAlarm(Alarm alarm) { 1450 if (mCurrentScrollDir == DragController.SCROLL_LEFT) { 1451 mContent.scrollLeft(); 1452 mScrollHintDir = DragController.SCROLL_NONE; 1453 } else if (mCurrentScrollDir == DragController.SCROLL_RIGHT) { 1454 mContent.scrollRight(); 1455 mScrollHintDir = DragController.SCROLL_NONE; 1456 } else { 1457 // This should not happen 1458 return; 1459 } 1460 mCurrentScrollDir = DragController.SCROLL_NONE; 1461 1462 // Pause drag event until the scrolling is finished 1463 mScrollPauseAlarm.setOnAlarmListener(new OnScrollFinishedListener(mDragObject)); 1464 mScrollPauseAlarm.setAlarm(DragController.RESCROLL_DELAY); 1465 } 1466 } 1467 1468 private class OnScrollFinishedListener implements OnAlarmListener { 1469 1470 private final DragObject mDragObject; 1471 1472 OnScrollFinishedListener(DragObject object) { 1473 mDragObject = object; 1474 } 1475 1476 /** 1477 * Page scroll is complete. 1478 */ 1479 @Override 1480 public void onAlarm(Alarm alarm) { 1481 // Reorder immediately on page change. 1482 onDragOver(mDragObject, 1); 1483 } 1484 } 1485 1486 // Compares item position based on rank and position giving priority to the rank. 1487 public static final Comparator<ItemInfo> ITEM_POS_COMPARATOR = new Comparator<ItemInfo>() { 1488 1489 @Override 1490 public int compare(ItemInfo lhs, ItemInfo rhs) { 1491 if (lhs.rank != rhs.rank) { 1492 return lhs.rank - rhs.rank; 1493 } else if (lhs.cellY != rhs.cellY) { 1494 return lhs.cellY - rhs.cellY; 1495 } else { 1496 return lhs.cellX - rhs.cellX; 1497 } 1498 } 1499 }; 1500} 1501