Folder.java revision fadbe8ffbd90eb36c782a76a8b1a76a26dba288e
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 } 589 }; 590 } 591 openFolderAnim.addListener(new AnimatorListenerAdapter() { 592 @Override 593 public void onAnimationStart(Animator animation) { 594 sendCustomAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED, 595 mContent.getAccessibilityDescription()); 596 mState = STATE_ANIMATING; 597 } 598 @Override 599 public void onAnimationEnd(Animator animation) { 600 mState = STATE_OPEN; 601 602 onCompleteRunnable.run(); 603 mContent.setFocusOnFirstChild(); 604 } 605 }); 606 607 // Footer animation 608 if (mContent.getPageCount() > 1 && !mInfo.hasOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION)) { 609 int footerWidth = mContent.getDesiredWidth() 610 - mFooter.getPaddingLeft() - mFooter.getPaddingRight(); 611 612 float textWidth = mFolderName.getPaint().measureText(mFolderName.getText().toString()); 613 float translation = (footerWidth - textWidth) / 2; 614 mFolderName.setTranslationX(mContent.mIsRtl ? -translation : translation); 615 mPageIndicator.prepareEntryAnimation(); 616 617 // Do not update the flag if we are in drag mode. The flag will be updated, when we 618 // actually drop the icon. 619 final boolean updateAnimationFlag = !mDragInProgress; 620 openFolderAnim.addListener(new AnimatorListenerAdapter() { 621 622 @SuppressLint("InlinedApi") 623 @Override 624 public void onAnimationEnd(Animator animation) { 625 mFolderName.animate().setDuration(FOLDER_NAME_ANIMATION_DURATION) 626 .translationX(0) 627 .setInterpolator(Utilities.ATLEAST_LOLLIPOP ? 628 AnimationUtils.loadInterpolator(mLauncher, 629 android.R.interpolator.fast_out_slow_in) 630 : new LogDecelerateInterpolator(100, 0)); 631 mPageIndicator.playEntryAnimation(); 632 633 if (updateAnimationFlag) { 634 mInfo.setOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION, true, mLauncher); 635 } 636 } 637 }); 638 } else { 639 mFolderName.setTranslationX(0); 640 } 641 642 mPageIndicator.stopAllAnimations(); 643 openFolderAnim.start(); 644 645 // Make sure the folder picks up the last drag move even if the finger doesn't move. 646 if (mDragController.isDragging()) { 647 mDragController.forceTouchMove(); 648 } 649 650 mContent.verifyVisibleHighResIcons(mContent.getNextPage()); 651 } 652 653 public void beginExternalDrag(ShortcutInfo item) { 654 mCurrentDragInfo = item; 655 mEmptyCellRank = mContent.allocateRankForNewItem(item); 656 mIsExternalDrag = true; 657 mDragInProgress = true; 658 659 // Since this folder opened by another controller, it might not get onDrop or 660 // onDropComplete. Perform cleanup once drag-n-drop ends. 661 mDragController.addDragListener(this); 662 } 663 664 @Override 665 public void onDragStart(DragSource source, ItemInfo info, int dragAction) { } 666 667 @Override 668 public void onDragEnd() { 669 if (mIsExternalDrag && mDragInProgress) { 670 completeDragExit(); 671 } 672 mDragController.removeDragListener(this); 673 } 674 675 @Thunk void sendCustomAccessibilityEvent(int type, String text) { 676 AccessibilityManager accessibilityManager = (AccessibilityManager) 677 getContext().getSystemService(Context.ACCESSIBILITY_SERVICE); 678 if (accessibilityManager.isEnabled()) { 679 AccessibilityEvent event = AccessibilityEvent.obtain(type); 680 onInitializeAccessibilityEvent(event); 681 event.getText().add(text); 682 accessibilityManager.sendAccessibilityEvent(event); 683 } 684 } 685 686 public void animateClosed() { 687 if (!(getParent() instanceof DragLayer)) return; 688 final ObjectAnimator oa = LauncherAnimUtils.ofViewAlphaAndScale(this, 0, 0.9f, 0.9f); 689 oa.addListener(new AnimatorListenerAdapter() { 690 @Override 691 public void onAnimationEnd(Animator animation) { 692 setLayerType(LAYER_TYPE_NONE, null); 693 close(true); 694 } 695 @Override 696 public void onAnimationStart(Animator animation) { 697 sendCustomAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED, 698 getContext().getString(R.string.folder_closed)); 699 mState = STATE_ANIMATING; 700 } 701 }); 702 oa.setDuration(mExpandDuration); 703 setLayerType(LAYER_TYPE_HARDWARE, null); 704 oa.start(); 705 } 706 707 public void close(boolean wasAnimated) { 708 // TODO: Clear all active animations. 709 DragLayer parent = (DragLayer) getParent(); 710 if (parent != null) { 711 parent.removeView(this); 712 } 713 mDragController.removeDropTarget(this); 714 clearFocus(); 715 if (wasAnimated) { 716 mFolderIcon.requestFocus(); 717 } 718 719 if (mRearrangeOnClose) { 720 rearrangeChildren(); 721 mRearrangeOnClose = false; 722 } 723 if (getItemCount() <= 1) { 724 if (!mDragInProgress && !mSuppressFolderDeletion) { 725 replaceFolderWithFinalItem(); 726 } else if (mDragInProgress) { 727 mDeleteFolderOnDropCompleted = true; 728 } 729 } 730 mSuppressFolderDeletion = false; 731 clearDragInfo(); 732 mState = STATE_SMALL; 733 } 734 735 public boolean acceptDrop(DragObject d) { 736 final ItemInfo item = d.dragInfo; 737 final int itemType = item.itemType; 738 return ((itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || 739 itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT || 740 itemType == LauncherSettings.Favorites.ITEM_TYPE_DEEP_SHORTCUT) && 741 !isFull()); 742 } 743 744 public void onDragEnter(DragObject d) { 745 mPrevTargetRank = -1; 746 mOnExitAlarm.cancelAlarm(); 747 // Get the area offset such that the folder only closes if half the drag icon width 748 // is outside the folder area 749 mScrollAreaOffset = d.dragView.getDragRegionWidth() / 2 - d.xOffset; 750 } 751 752 OnAlarmListener mReorderAlarmListener = new OnAlarmListener() { 753 public void onAlarm(Alarm alarm) { 754 mContent.realTimeReorder(mEmptyCellRank, mTargetRank); 755 mEmptyCellRank = mTargetRank; 756 } 757 }; 758 759 @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1) 760 public boolean isLayoutRtl() { 761 return (getLayoutDirection() == LAYOUT_DIRECTION_RTL); 762 } 763 764 @Override 765 public void onDragOver(DragObject d) { 766 onDragOver(d, REORDER_DELAY); 767 } 768 769 private int getTargetRank(DragObject d, float[] recycle) { 770 recycle = d.getVisualCenter(recycle); 771 return mContent.findNearestArea( 772 (int) recycle[0] - getPaddingLeft(), (int) recycle[1] - getPaddingTop()); 773 } 774 775 @Thunk void onDragOver(DragObject d, int reorderDelay) { 776 if (mScrollPauseAlarm.alarmPending()) { 777 return; 778 } 779 final float[] r = new float[2]; 780 mTargetRank = getTargetRank(d, r); 781 782 if (mTargetRank != mPrevTargetRank) { 783 mReorderAlarm.cancelAlarm(); 784 mReorderAlarm.setOnAlarmListener(mReorderAlarmListener); 785 mReorderAlarm.setAlarm(REORDER_DELAY); 786 mPrevTargetRank = mTargetRank; 787 788 if (d.stateAnnouncer != null) { 789 d.stateAnnouncer.announce(getContext().getString(R.string.move_to_position, 790 mTargetRank + 1)); 791 } 792 } 793 794 float x = r[0]; 795 int currentPage = mContent.getNextPage(); 796 797 float cellOverlap = mContent.getCurrentCellLayout().getCellWidth() 798 * ICON_OVERSCROLL_WIDTH_FACTOR; 799 boolean isOutsideLeftEdge = x < cellOverlap; 800 boolean isOutsideRightEdge = x > (getWidth() - cellOverlap); 801 802 if (currentPage > 0 && (mContent.mIsRtl ? isOutsideRightEdge : isOutsideLeftEdge)) { 803 showScrollHint(DragController.SCROLL_LEFT, d); 804 } else if (currentPage < (mContent.getPageCount() - 1) 805 && (mContent.mIsRtl ? isOutsideLeftEdge : isOutsideRightEdge)) { 806 showScrollHint(DragController.SCROLL_RIGHT, d); 807 } else { 808 mOnScrollHintAlarm.cancelAlarm(); 809 if (mScrollHintDir != DragController.SCROLL_NONE) { 810 mContent.clearScrollHint(); 811 mScrollHintDir = DragController.SCROLL_NONE; 812 } 813 } 814 } 815 816 private void showScrollHint(int direction, DragObject d) { 817 // Show scroll hint on the right 818 if (mScrollHintDir != direction) { 819 mContent.showScrollHint(direction); 820 mScrollHintDir = direction; 821 } 822 823 // Set alarm for when the hint is complete 824 if (!mOnScrollHintAlarm.alarmPending() || mCurrentScrollDir != direction) { 825 mCurrentScrollDir = direction; 826 mOnScrollHintAlarm.cancelAlarm(); 827 mOnScrollHintAlarm.setOnAlarmListener(new OnScrollHintListener(d)); 828 mOnScrollHintAlarm.setAlarm(SCROLL_HINT_DURATION); 829 830 mReorderAlarm.cancelAlarm(); 831 mTargetRank = mEmptyCellRank; 832 } 833 } 834 835 OnAlarmListener mOnExitAlarmListener = new OnAlarmListener() { 836 public void onAlarm(Alarm alarm) { 837 completeDragExit(); 838 } 839 }; 840 841 public void completeDragExit() { 842 if (mInfo.opened) { 843 mLauncher.closeFolder(); 844 mRearrangeOnClose = true; 845 } else if (mState == STATE_ANIMATING) { 846 mRearrangeOnClose = true; 847 } else { 848 rearrangeChildren(); 849 clearDragInfo(); 850 } 851 } 852 853 private void clearDragInfo() { 854 mCurrentDragInfo = null; 855 mCurrentDragView = null; 856 mSuppressOnAdd = false; 857 mIsExternalDrag = false; 858 } 859 860 public void onDragExit(DragObject d) { 861 // We only close the folder if this is a true drag exit, ie. not because 862 // a drop has occurred above the folder. 863 if (!d.dragComplete) { 864 mOnExitAlarm.setOnAlarmListener(mOnExitAlarmListener); 865 mOnExitAlarm.setAlarm(ON_EXIT_CLOSE_DELAY); 866 } 867 mReorderAlarm.cancelAlarm(); 868 869 mOnScrollHintAlarm.cancelAlarm(); 870 mScrollPauseAlarm.cancelAlarm(); 871 if (mScrollHintDir != DragController.SCROLL_NONE) { 872 mContent.clearScrollHint(); 873 mScrollHintDir = DragController.SCROLL_NONE; 874 } 875 } 876 877 /** 878 * When performing an accessibility drop, onDrop is sent immediately after onDragEnter. So we 879 * need to complete all transient states based on timers. 880 */ 881 @Override 882 public void prepareAccessibilityDrop() { 883 if (mReorderAlarm.alarmPending()) { 884 mReorderAlarm.cancelAlarm(); 885 mReorderAlarmListener.onAlarm(mReorderAlarm); 886 } 887 } 888 889 public void onDropCompleted(final View target, final DragObject d, 890 final boolean isFlingToDelete, final boolean success) { 891 if (mDeferDropAfterUninstall) { 892 Log.d(TAG, "Deferred handling drop because waiting for uninstall."); 893 mDeferredAction = new Runnable() { 894 public void run() { 895 onDropCompleted(target, d, isFlingToDelete, success); 896 mDeferredAction = null; 897 } 898 }; 899 return; 900 } 901 902 boolean beingCalledAfterUninstall = mDeferredAction != null; 903 boolean successfulDrop = 904 success && (!beingCalledAfterUninstall || mUninstallSuccessful); 905 906 if (successfulDrop) { 907 if (mDeleteFolderOnDropCompleted && !mItemAddedBackToSelfViaIcon && target != this) { 908 replaceFolderWithFinalItem(); 909 } 910 } else { 911 // The drag failed, we need to return the item to the folder 912 ShortcutInfo info = (ShortcutInfo) d.dragInfo; 913 View icon = (mCurrentDragView != null && mCurrentDragView.getTag() == info) 914 ? mCurrentDragView : mContent.createNewView(info); 915 ArrayList<View> views = getItemsInReadingOrder(); 916 views.add(info.rank, icon); 917 mContent.arrangeChildren(views, views.size()); 918 mItemsInvalidated = true; 919 920 mSuppressOnAdd = true; 921 mFolderIcon.onDrop(d); 922 mSuppressOnAdd = false; 923 } 924 925 if (target != this) { 926 if (mOnExitAlarm.alarmPending()) { 927 mOnExitAlarm.cancelAlarm(); 928 if (!successfulDrop) { 929 mSuppressFolderDeletion = true; 930 } 931 mScrollPauseAlarm.cancelAlarm(); 932 completeDragExit(); 933 } 934 } 935 936 mDeleteFolderOnDropCompleted = false; 937 mDragInProgress = false; 938 mItemAddedBackToSelfViaIcon = false; 939 mCurrentDragInfo = null; 940 mCurrentDragView = null; 941 mSuppressOnAdd = false; 942 943 // Reordering may have occured, and we need to save the new item locations. We do this once 944 // at the end to prevent unnecessary database operations. 945 updateItemLocationsInDatabaseBatch(); 946 947 // Use the item count to check for multi-page as the folder UI may not have 948 // been refreshed yet. 949 if (getItemCount() <= mContent.itemsPerPage()) { 950 // Show the animation, next time something is added to the folder. 951 mInfo.setOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION, false, mLauncher); 952 } 953 954 if (!isFlingToDelete) { 955 // Fling to delete already exits spring loaded mode after the animation finishes. 956 mLauncher.exitSpringLoadedDragModeDelayed(successfulDrop, 957 Launcher.EXIT_SPRINGLOADED_MODE_SHORT_TIMEOUT, null); 958 } 959 } 960 961 @Override 962 public void deferCompleteDropAfterUninstallActivity() { 963 mDeferDropAfterUninstall = true; 964 } 965 966 @Override 967 public void onDragObjectRemoved(boolean success) { 968 mDeferDropAfterUninstall = false; 969 mUninstallSuccessful = success; 970 if (mDeferredAction != null) { 971 mDeferredAction.run(); 972 } 973 } 974 975 @Override 976 public float getIntrinsicIconScaleFactor() { 977 return 1f; 978 } 979 980 @Override 981 public boolean supportsFlingToDelete() { 982 return true; 983 } 984 985 @Override 986 public boolean supportsAppInfoDropTarget() { 987 return !FeatureFlags.LAUNCHER3_LEGACY_WORKSPACE_DND; 988 } 989 990 @Override 991 public boolean supportsDeleteDropTarget() { 992 return true; 993 } 994 995 @Override 996 public void onFlingToDelete(DragObject d, PointF vec) { 997 // Do nothing 998 } 999 1000 @Override 1001 public void onFlingToDeleteCompleted() { 1002 // Do nothing 1003 } 1004 1005 private void updateItemLocationsInDatabaseBatch() { 1006 ArrayList<View> list = getItemsInReadingOrder(); 1007 ArrayList<ItemInfo> items = new ArrayList<ItemInfo>(); 1008 for (int i = 0; i < list.size(); i++) { 1009 View v = list.get(i); 1010 ItemInfo info = (ItemInfo) v.getTag(); 1011 info.rank = i; 1012 items.add(info); 1013 } 1014 1015 LauncherModel.moveItemsInDatabase(mLauncher, items, mInfo.id, 0); 1016 } 1017 1018 public void notifyDrop() { 1019 if (mDragInProgress) { 1020 mItemAddedBackToSelfViaIcon = true; 1021 } 1022 } 1023 1024 public boolean isDropEnabled() { 1025 return true; 1026 } 1027 1028 public boolean isFull() { 1029 return mContent.isFull(); 1030 } 1031 1032 private void centerAboutIcon() { 1033 DeviceProfile grid = mLauncher.getDeviceProfile(); 1034 1035 DragLayer.LayoutParams lp = (DragLayer.LayoutParams) getLayoutParams(); 1036 DragLayer parent = (DragLayer) mLauncher.findViewById(R.id.drag_layer); 1037 int width = getPaddingLeft() + getPaddingRight() + mContent.getDesiredWidth(); 1038 int height = getFolderHeight(); 1039 1040 float scale = parent.getDescendantRectRelativeToSelf(mFolderIcon, sTempRect); 1041 int centerX = sTempRect.centerX(); 1042 int centerY = sTempRect.centerY(); 1043 int centeredLeft = centerX - width / 2; 1044 int centeredTop = centerY - height / 2; 1045 1046 // We need to bound the folder to the currently visible workspace area 1047 mLauncher.getWorkspace().getPageAreaRelativeToDragLayer(sTempRect); 1048 int left = Math.min(Math.max(sTempRect.left, centeredLeft), 1049 sTempRect.right- width); 1050 int top = Math.min(Math.max(sTempRect.top, centeredTop), 1051 sTempRect.bottom - height); 1052 1053 int distFromEdgeOfScreen = mLauncher.getWorkspace().getPaddingLeft() + getPaddingLeft(); 1054 1055 if (grid.isPhone && (grid.availableWidthPx - width) < 4 * distFromEdgeOfScreen) { 1056 // Center the folder if it is very close to being centered anyway, by virtue of 1057 // filling the majority of the viewport. ie. remove it from the uncanny valley 1058 // of centeredness. 1059 left = (grid.availableWidthPx - width) / 2; 1060 } else if (width >= sTempRect.width()) { 1061 // If the folder doesn't fit within the bounds, center it about the desired bounds 1062 left = sTempRect.left + (sTempRect.width() - width) / 2; 1063 } 1064 if (height >= sTempRect.height()) { 1065 // Folder height is greater than page height, center on page 1066 top = sTempRect.top + (sTempRect.height() - height) / 2; 1067 } else { 1068 // Folder height is less than page height, so bound it to the absolute open folder 1069 // bounds if necessary 1070 Rect folderBounds = grid.getAbsoluteOpenFolderBounds(); 1071 left = Math.max(folderBounds.left, Math.min(left, folderBounds.right - width)); 1072 top = Math.max(folderBounds.top, Math.min(top, folderBounds.bottom - height)); 1073 } 1074 1075 int folderPivotX = width / 2 + (centeredLeft - left); 1076 int folderPivotY = height / 2 + (centeredTop - top); 1077 setPivotX(folderPivotX); 1078 setPivotY(folderPivotY); 1079 mFolderIconPivotX = (int) (mFolderIcon.getMeasuredWidth() * 1080 (1.0f * folderPivotX / width)); 1081 mFolderIconPivotY = (int) (mFolderIcon.getMeasuredHeight() * 1082 (1.0f * folderPivotY / height)); 1083 1084 lp.width = width; 1085 lp.height = height; 1086 lp.x = left; 1087 lp.y = top; 1088 } 1089 1090 public float getPivotXForIconAnimation() { 1091 return mFolderIconPivotX; 1092 } 1093 public float getPivotYForIconAnimation() { 1094 return mFolderIconPivotY; 1095 } 1096 1097 private int getContentAreaHeight() { 1098 DeviceProfile grid = mLauncher.getDeviceProfile(); 1099 int maxContentAreaHeight = grid.availableHeightPx 1100 - grid.getTotalWorkspacePadding().y - mFooterHeight; 1101 int height = Math.min(maxContentAreaHeight, 1102 mContent.getDesiredHeight()); 1103 return Math.max(height, MIN_CONTENT_DIMEN); 1104 } 1105 1106 private int getContentAreaWidth() { 1107 return Math.max(mContent.getDesiredWidth(), MIN_CONTENT_DIMEN); 1108 } 1109 1110 private int getFolderHeight() { 1111 return getFolderHeight(getContentAreaHeight()); 1112 } 1113 1114 private int getFolderHeight(int contentAreaHeight) { 1115 return getPaddingTop() + getPaddingBottom() + contentAreaHeight + mFooterHeight; 1116 } 1117 1118 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 1119 int contentWidth = getContentAreaWidth(); 1120 int contentHeight = getContentAreaHeight(); 1121 1122 int contentAreaWidthSpec = MeasureSpec.makeMeasureSpec(contentWidth, MeasureSpec.EXACTLY); 1123 int contentAreaHeightSpec = MeasureSpec.makeMeasureSpec(contentHeight, MeasureSpec.EXACTLY); 1124 1125 mContent.setFixedSize(contentWidth, contentHeight); 1126 mContent.measure(contentAreaWidthSpec, contentAreaHeightSpec); 1127 1128 if (mContent.getChildCount() > 0) { 1129 int cellIconGap = (mContent.getPageAt(0).getCellWidth() 1130 - mLauncher.getDeviceProfile().iconSizePx) / 2; 1131 mFooter.setPadding(mContent.getPaddingLeft() + cellIconGap, 1132 mFooter.getPaddingTop(), 1133 mContent.getPaddingRight() + cellIconGap, 1134 mFooter.getPaddingBottom()); 1135 } 1136 mFooter.measure(contentAreaWidthSpec, 1137 MeasureSpec.makeMeasureSpec(mFooterHeight, MeasureSpec.EXACTLY)); 1138 1139 int folderWidth = getPaddingLeft() + getPaddingRight() + contentWidth; 1140 int folderHeight = getFolderHeight(contentHeight); 1141 setMeasuredDimension(folderWidth, folderHeight); 1142 } 1143 1144 /** 1145 * Rearranges the children based on their rank. 1146 */ 1147 public void rearrangeChildren() { 1148 rearrangeChildren(-1); 1149 } 1150 1151 /** 1152 * Rearranges the children based on their rank. 1153 * @param itemCount if greater than the total children count, empty spaces are left at the end, 1154 * otherwise it is ignored. 1155 */ 1156 public void rearrangeChildren(int itemCount) { 1157 ArrayList<View> views = getItemsInReadingOrder(); 1158 mContent.arrangeChildren(views, Math.max(itemCount, views.size())); 1159 mItemsInvalidated = true; 1160 } 1161 1162 public int getItemCount() { 1163 return mContent.getItemCount(); 1164 } 1165 1166 @Thunk void replaceFolderWithFinalItem() { 1167 // Add the last remaining child to the workspace in place of the folder 1168 Runnable onCompleteRunnable = new Runnable() { 1169 @Override 1170 public void run() { 1171 int itemCount = mInfo.contents.size(); 1172 if (itemCount <= 1) { 1173 View newIcon = null; 1174 1175 if (itemCount == 1) { 1176 // Move the item from the folder to the workspace, in the position of the 1177 // folder 1178 CellLayout cellLayout = mLauncher.getCellLayout(mInfo.container, 1179 mInfo.screenId); 1180 ShortcutInfo finalItem = mInfo.contents.remove(0); 1181 newIcon = mLauncher.createShortcut(cellLayout, finalItem); 1182 LauncherModel.addOrMoveItemInDatabase(mLauncher, finalItem, mInfo.container, 1183 mInfo.screenId, mInfo.cellX, mInfo.cellY); 1184 } 1185 1186 // Remove the folder 1187 mLauncher.removeItem(mFolderIcon, mInfo, true /* deleteFromDb */); 1188 if (mFolderIcon instanceof DropTarget) { 1189 mDragController.removeDropTarget((DropTarget) mFolderIcon); 1190 } 1191 1192 if (newIcon != null) { 1193 // We add the child after removing the folder to prevent both from existing 1194 // at the same time in the CellLayout. We need to add the new item with 1195 // addInScreenFromBind() to ensure that hotseat items are placed correctly. 1196 mLauncher.getWorkspace().addInScreenFromBind(newIcon, mInfo.container, 1197 mInfo.screenId, mInfo.cellX, mInfo.cellY, mInfo.spanX, mInfo.spanY); 1198 1199 // Focus the newly created child 1200 newIcon.requestFocus(); 1201 } 1202 } 1203 } 1204 }; 1205 View finalChild = mContent.getLastItem(); 1206 if (finalChild != null) { 1207 mFolderIcon.performDestroyAnimation(finalChild, onCompleteRunnable); 1208 } else { 1209 onCompleteRunnable.run(); 1210 } 1211 mDestroyed = true; 1212 } 1213 1214 public boolean isDestroyed() { 1215 return mDestroyed; 1216 } 1217 1218 // This method keeps track of the first and last item in the folder for the purposes 1219 // of keyboard focus 1220 public void updateTextViewFocus() { 1221 final View firstChild = mContent.getFirstItem(); 1222 final View lastChild = mContent.getLastItem(); 1223 if (firstChild != null && lastChild != null) { 1224 mFolderName.setNextFocusDownId(lastChild.getId()); 1225 mFolderName.setNextFocusRightId(lastChild.getId()); 1226 mFolderName.setNextFocusLeftId(lastChild.getId()); 1227 mFolderName.setNextFocusUpId(lastChild.getId()); 1228 // Hitting TAB from the folder name wraps around to the first item on the current 1229 // folder page, and hitting SHIFT+TAB from that item wraps back to the folder name. 1230 mFolderName.setNextFocusForwardId(firstChild.getId()); 1231 // When clicking off the folder when editing the name, this Folder gains focus. When 1232 // pressing an arrow key from that state, give the focus to the first item. 1233 this.setNextFocusDownId(firstChild.getId()); 1234 this.setNextFocusRightId(firstChild.getId()); 1235 this.setNextFocusLeftId(firstChild.getId()); 1236 this.setNextFocusUpId(firstChild.getId()); 1237 // When pressing shift+tab in the above state, give the focus to the last item. 1238 setOnKeyListener(new OnKeyListener() { 1239 @Override 1240 public boolean onKey(View v, int keyCode, KeyEvent event) { 1241 boolean isShiftPlusTab = keyCode == KeyEvent.KEYCODE_TAB && 1242 event.hasModifiers(KeyEvent.META_SHIFT_ON); 1243 if (isShiftPlusTab && Folder.this.isFocused()) { 1244 return lastChild.requestFocus(); 1245 } 1246 return false; 1247 } 1248 }); 1249 } 1250 } 1251 1252 public void onDrop(DragObject d) { 1253 Runnable cleanUpRunnable = null; 1254 1255 // If we are coming from All Apps space, we defer removing the extra empty screen 1256 // until the folder closes 1257 if (d.dragSource != mLauncher.getWorkspace() && !(d.dragSource instanceof Folder)) { 1258 cleanUpRunnable = new Runnable() { 1259 @Override 1260 public void run() { 1261 mLauncher.exitSpringLoadedDragModeDelayed(true, 1262 Launcher.EXIT_SPRINGLOADED_MODE_SHORT_TIMEOUT, 1263 null); 1264 } 1265 }; 1266 } 1267 1268 // If the icon was dropped while the page was being scrolled, we need to compute 1269 // the target location again such that the icon is placed of the final page. 1270 if (!mContent.rankOnCurrentPage(mEmptyCellRank)) { 1271 // Reorder again. 1272 mTargetRank = getTargetRank(d, null); 1273 1274 // Rearrange items immediately. 1275 mReorderAlarmListener.onAlarm(mReorderAlarm); 1276 1277 mOnScrollHintAlarm.cancelAlarm(); 1278 mScrollPauseAlarm.cancelAlarm(); 1279 } 1280 mContent.completePendingPageChanges(); 1281 1282 View currentDragView; 1283 ShortcutInfo si = mCurrentDragInfo; 1284 if (mIsExternalDrag) { 1285 currentDragView = mContent.createAndAddViewForRank(si, mEmptyCellRank); 1286 // Actually move the item in the database if it was an external drag. Call this 1287 // before creating the view, so that ShortcutInfo is updated appropriately. 1288 LauncherModel.addOrMoveItemInDatabase( 1289 mLauncher, si, mInfo.id, 0, si.cellX, si.cellY); 1290 1291 // We only need to update the locations if it doesn't get handled in #onDropCompleted. 1292 if (d.dragSource != this) { 1293 updateItemLocationsInDatabaseBatch(); 1294 } 1295 mIsExternalDrag = false; 1296 } else { 1297 currentDragView = mCurrentDragView; 1298 mContent.addViewForRank(currentDragView, si, mEmptyCellRank); 1299 } 1300 1301 if (d.dragView.hasDrawn()) { 1302 1303 // Temporarily reset the scale such that the animation target gets calculated correctly. 1304 float scaleX = getScaleX(); 1305 float scaleY = getScaleY(); 1306 setScaleX(1.0f); 1307 setScaleY(1.0f); 1308 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, currentDragView, 1309 cleanUpRunnable, null); 1310 setScaleX(scaleX); 1311 setScaleY(scaleY); 1312 } else { 1313 d.deferDragViewCleanupPostAnimation = false; 1314 currentDragView.setVisibility(VISIBLE); 1315 } 1316 mItemsInvalidated = true; 1317 rearrangeChildren(); 1318 1319 // Temporarily suppress the listener, as we did all the work already here. 1320 mSuppressOnAdd = true; 1321 mInfo.add(si, false); 1322 mSuppressOnAdd = false; 1323 // Clear the drag info, as it is no longer being dragged. 1324 mCurrentDragInfo = null; 1325 mDragInProgress = false; 1326 1327 if (mContent.getPageCount() > 1) { 1328 // The animation has already been shown while opening the folder. 1329 mInfo.setOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION, true, mLauncher); 1330 } 1331 } 1332 1333 // This is used so the item doesn't immediately appear in the folder when added. In one case 1334 // we need to create the illusion that the item isn't added back to the folder yet, to 1335 // to correspond to the animation of the icon back into the folder. This is 1336 public void hideItem(ShortcutInfo info) { 1337 View v = getViewForInfo(info); 1338 v.setVisibility(INVISIBLE); 1339 } 1340 public void showItem(ShortcutInfo info) { 1341 View v = getViewForInfo(info); 1342 v.setVisibility(VISIBLE); 1343 } 1344 1345 @Override 1346 public void onAdd(ShortcutInfo item) { 1347 // If the item was dropped onto this open folder, we have done the work associated 1348 // with adding the item to the folder, as indicated by mSuppressOnAdd being set 1349 if (mSuppressOnAdd) return; 1350 mContent.createAndAddViewForRank(item, mContent.allocateRankForNewItem(item)); 1351 mItemsInvalidated = true; 1352 LauncherModel.addOrMoveItemInDatabase( 1353 mLauncher, item, mInfo.id, 0, item.cellX, item.cellY); 1354 } 1355 1356 public void onRemove(ShortcutInfo item) { 1357 mItemsInvalidated = true; 1358 // If this item is being dragged from this open folder, we have already handled 1359 // the work associated with removing the item, so we don't have to do anything here. 1360 if (item == mCurrentDragInfo) return; 1361 View v = getViewForInfo(item); 1362 mContent.removeItem(v); 1363 if (mState == STATE_ANIMATING) { 1364 mRearrangeOnClose = true; 1365 } else { 1366 rearrangeChildren(); 1367 } 1368 if (getItemCount() <= 1) { 1369 if (mInfo.opened) { 1370 mLauncher.closeFolder(this, true); 1371 } else { 1372 replaceFolderWithFinalItem(); 1373 } 1374 } 1375 } 1376 1377 private View getViewForInfo(final ShortcutInfo item) { 1378 return mContent.iterateOverItems(new ItemOperator() { 1379 1380 @Override 1381 public boolean evaluate(ItemInfo info, View view) { 1382 return info == item; 1383 } 1384 }); 1385 } 1386 1387 @Override 1388 public void onItemsChanged(boolean animate) { 1389 updateTextViewFocus(); 1390 } 1391 1392 public void onTitleChanged(CharSequence title) { 1393 } 1394 1395 public ArrayList<View> getItemsInReadingOrder() { 1396 if (mItemsInvalidated) { 1397 mItemsInReadingOrder.clear(); 1398 mContent.iterateOverItems(new ItemOperator() { 1399 1400 @Override 1401 public boolean evaluate(ItemInfo info, View view) { 1402 mItemsInReadingOrder.add(view); 1403 return false; 1404 } 1405 }); 1406 mItemsInvalidated = false; 1407 } 1408 return mItemsInReadingOrder; 1409 } 1410 1411 public void onFocusChange(View v, boolean hasFocus) { 1412 if (v == mFolderName) { 1413 if (hasFocus) { 1414 startEditingFolderName(); 1415 } else { 1416 dismissEditingName(); 1417 } 1418 } 1419 } 1420 1421 @Override 1422 public void getHitRectRelativeToDragLayer(Rect outRect) { 1423 getHitRect(outRect); 1424 outRect.left -= mScrollAreaOffset; 1425 outRect.right += mScrollAreaOffset; 1426 } 1427 1428 @Override 1429 public void fillInLaunchSourceData(View v, ItemInfo info, Target target, Target targetParent) { 1430 target.itemType = LauncherLogProto.APP_ICON; 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