Folder.java revision aa8ef119f18864f4ab41c12f9c2ad6d7f643a0a9
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; 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.Point; 29import android.graphics.PointF; 30import android.graphics.Rect; 31import android.os.Build; 32import android.os.Bundle; 33import android.text.InputType; 34import android.text.Selection; 35import android.text.Spannable; 36import android.util.AttributeSet; 37import android.util.Log; 38import android.view.ActionMode; 39import android.view.KeyEvent; 40import android.view.Menu; 41import android.view.MenuItem; 42import android.view.MotionEvent; 43import android.view.View; 44import android.view.ViewGroup; 45import android.view.accessibility.AccessibilityEvent; 46import android.view.accessibility.AccessibilityManager; 47import android.view.animation.AccelerateInterpolator; 48import android.view.animation.AnimationUtils; 49import android.view.inputmethod.EditorInfo; 50import android.view.inputmethod.InputMethodManager; 51import android.widget.LinearLayout; 52import android.widget.TextView; 53 54import com.android.launcher3.CellLayout.CellInfo; 55import com.android.launcher3.DragController.DragListener; 56import com.android.launcher3.FolderInfo.FolderListener; 57import com.android.launcher3.UninstallDropTarget.UninstallSource; 58import com.android.launcher3.Workspace.ItemOperator; 59import com.android.launcher3.accessibility.LauncherAccessibilityDelegate.AccessibilityDragSource; 60import com.android.launcher3.util.Thunk; 61 62import java.util.ArrayList; 63import java.util.Collections; 64 65/** 66 * Represents a set of icons chosen by the user or generated by the system. 67 */ 68public class Folder extends LinearLayout implements DragSource, View.OnClickListener, 69 View.OnLongClickListener, DropTarget, FolderListener, TextView.OnEditorActionListener, 70 View.OnFocusChangeListener, DragListener, UninstallSource, AccessibilityDragSource, 71 Stats.LaunchSourceProvider { 72 private static final String TAG = "Launcher.Folder"; 73 74 /** 75 * We avoid measuring {@link #mContentWrapper} with a 0 width or height, as this 76 * results in CellLayout being measured as UNSPECIFIED, which it does not support. 77 */ 78 private static final int MIN_CONTENT_DIMEN = 5; 79 80 static final int STATE_NONE = -1; 81 static final int STATE_SMALL = 0; 82 static final int STATE_ANIMATING = 1; 83 static final int STATE_OPEN = 2; 84 85 /** 86 * Time for which the scroll hint is shown before automatically changing page. 87 */ 88 public static final int SCROLL_HINT_DURATION = DragController.SCROLL_DELAY; 89 90 /** 91 * Fraction of icon width which behave as scroll region. 92 */ 93 private static final float ICON_OVERSCROLL_WIDTH_FACTOR = 0.45f; 94 95 private static final int FOLDER_NAME_ANIMATION_DURATION = 633; 96 97 private static final int REORDER_DELAY = 250; 98 private static final int ON_EXIT_CLOSE_DELAY = 400; 99 private static final Rect sTempRect = new Rect(); 100 101 private static String sDefaultFolderName; 102 private static String sHintText; 103 104 private final Alarm mReorderAlarm = new Alarm(); 105 private final Alarm mOnExitAlarm = new Alarm(); 106 private final Alarm mOnScrollHintAlarm = new Alarm(); 107 @Thunk final Alarm mScrollPauseAlarm = new Alarm(); 108 109 @Thunk final ArrayList<View> mItemsInReadingOrder = new ArrayList<View>(); 110 111 private final int mExpandDuration; 112 private final int mMaterialExpandDuration; 113 private final int mMaterialExpandStagger; 114 115 private final InputMethodManager mInputMethodManager; 116 117 protected final Launcher mLauncher; 118 protected DragController mDragController; 119 protected FolderInfo mInfo; 120 121 @Thunk FolderIcon mFolderIcon; 122 123 @Thunk FolderPagedView mContent; 124 @Thunk View mContentWrapper; 125 FolderEditText mFolderName; 126 127 private View mFooter; 128 private int mFooterHeight; 129 130 // Cell ranks used for drag and drop 131 @Thunk int mTargetRank, mPrevTargetRank, mEmptyCellRank; 132 133 @Thunk int mState = STATE_NONE; 134 private boolean mRearrangeOnClose = false; 135 boolean mItemsInvalidated = false; 136 private ShortcutInfo mCurrentDragInfo; 137 private View mCurrentDragView; 138 private boolean mIsExternalDrag; 139 boolean mSuppressOnAdd = false; 140 private boolean mDragInProgress = false; 141 private boolean mDeleteFolderOnDropCompleted = false; 142 private boolean mSuppressFolderDeletion = false; 143 private boolean mItemAddedBackToSelfViaIcon = false; 144 @Thunk float mFolderIconPivotX; 145 @Thunk float mFolderIconPivotY; 146 private boolean mIsEditingName = false; 147 148 private boolean mDestroyed; 149 150 @Thunk Runnable mDeferredAction; 151 private boolean mDeferDropAfterUninstall; 152 private boolean mUninstallSuccessful; 153 154 // Folder scrolling 155 private int mScrollAreaOffset; 156 157 @Thunk int mScrollHintDir = DragController.SCROLL_NONE; 158 @Thunk int mCurrentScrollDir = DragController.SCROLL_NONE; 159 160 /** 161 * Used to inflate the Workspace from XML. 162 * 163 * @param context The application's context. 164 * @param attrs The attributes set containing the Workspace's customization values. 165 */ 166 public Folder(Context context, AttributeSet attrs) { 167 super(context, attrs); 168 setAlwaysDrawnWithCacheEnabled(false); 169 mInputMethodManager = (InputMethodManager) 170 getContext().getSystemService(Context.INPUT_METHOD_SERVICE); 171 172 Resources res = getResources(); 173 mExpandDuration = res.getInteger(R.integer.config_folderExpandDuration); 174 mMaterialExpandDuration = res.getInteger(R.integer.config_materialFolderExpandDuration); 175 mMaterialExpandStagger = res.getInteger(R.integer.config_materialFolderExpandStagger); 176 177 if (sDefaultFolderName == null) { 178 sDefaultFolderName = res.getString(R.string.folder_name); 179 } 180 if (sHintText == null) { 181 sHintText = res.getString(R.string.folder_hint_text); 182 } 183 mLauncher = (Launcher) context; 184 // We need this view to be focusable in touch mode so that when text editing of the folder 185 // name is complete, we have something to focus on, thus hiding the cursor and giving 186 // reliable behavior when clicking the text field (since it will always gain focus on click). 187 setFocusableInTouchMode(true); 188 } 189 190 @Override 191 protected void onFinishInflate() { 192 super.onFinishInflate(); 193 mContentWrapper = findViewById(R.id.folder_content_wrapper); 194 mContent = (FolderPagedView) findViewById(R.id.folder_content); 195 mContent.setFolder(this); 196 197 mFolderName = (FolderEditText) findViewById(R.id.folder_name); 198 mFolderName.setFolder(this); 199 mFolderName.setOnFocusChangeListener(this); 200 201 // We disable action mode for now since it messes up the view on phones 202 mFolderName.setCustomSelectionActionModeCallback(mActionModeCallback); 203 mFolderName.setOnEditorActionListener(this); 204 mFolderName.setSelectAllOnFocus(true); 205 mFolderName.setInputType(mFolderName.getInputType() | 206 InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS | InputType.TYPE_TEXT_FLAG_CAP_WORDS); 207 208 mFooter = findViewById(R.id.folder_footer); 209 210 // We find out how tall footer wants to be (it is set to wrap_content), so that 211 // we can allocate the appropriate amount of space for it. 212 int measureSpec = MeasureSpec.UNSPECIFIED; 213 mFooter.measure(measureSpec, measureSpec); 214 mFooterHeight = mFooter.getMeasuredHeight(); 215 } 216 217 private ActionMode.Callback mActionModeCallback = new ActionMode.Callback() { 218 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 219 return false; 220 } 221 222 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 223 return false; 224 } 225 226 public void onDestroyActionMode(ActionMode mode) { 227 } 228 229 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 230 return false; 231 } 232 }; 233 234 public void onClick(View v) { 235 Object tag = v.getTag(); 236 if (tag instanceof ShortcutInfo) { 237 mLauncher.onClick(v); 238 } 239 } 240 241 public boolean onLongClick(View v) { 242 // Return if global dragging is not enabled 243 if (!mLauncher.isDraggingEnabled()) return true; 244 return beginDrag(v, false); 245 } 246 247 private boolean beginDrag(View v, boolean accessible) { 248 Object tag = v.getTag(); 249 if (tag instanceof ShortcutInfo) { 250 ShortcutInfo item = (ShortcutInfo) tag; 251 if (!v.isInTouchMode()) { 252 return false; 253 } 254 255 mLauncher.getWorkspace().beginDragShared(v, new Point(), this, accessible); 256 257 mCurrentDragInfo = item; 258 mEmptyCellRank = item.rank; 259 mCurrentDragView = v; 260 261 mContent.removeItem(mCurrentDragView); 262 mInfo.remove(mCurrentDragInfo); 263 mDragInProgress = true; 264 mItemAddedBackToSelfViaIcon = false; 265 } 266 return true; 267 } 268 269 @Override 270 public void startDrag(CellInfo cellInfo, boolean accessible) { 271 beginDrag(cellInfo.cell, accessible); 272 } 273 274 @Override 275 public void enableAccessibleDrag(boolean enable) { 276 mLauncher.getSearchBar().enableAccessibleDrag(enable); 277 for (int i = 0; i < mContent.getChildCount(); i++) { 278 mContent.getPageAt(i).enableAccessibleDrag(enable, CellLayout.FOLDER_ACCESSIBILITY_DRAG); 279 } 280 281 mFooter.setImportantForAccessibility(enable ? IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS : 282 IMPORTANT_FOR_ACCESSIBILITY_AUTO); 283 mLauncher.getWorkspace().setAddNewPageOnDrag(!enable); 284 } 285 286 public boolean isEditingName() { 287 return mIsEditingName; 288 } 289 290 public void startEditingFolderName() { 291 mFolderName.setHint(""); 292 mIsEditingName = true; 293 } 294 295 public void dismissEditingName() { 296 mInputMethodManager.hideSoftInputFromWindow(getWindowToken(), 0); 297 doneEditingFolderName(true); 298 } 299 300 public void doneEditingFolderName(boolean commit) { 301 mFolderName.setHint(sHintText); 302 // Convert to a string here to ensure that no other state associated with the text field 303 // gets saved. 304 String newTitle = mFolderName.getText().toString(); 305 mInfo.setTitle(newTitle); 306 LauncherModel.updateItemInDatabase(mLauncher, mInfo); 307 308 if (commit) { 309 sendCustomAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED, 310 String.format(getContext().getString(R.string.folder_renamed), newTitle)); 311 } 312 // In order to clear the focus from the text field, we set the focus on ourself. This 313 // ensures that every time the field is clicked, focus is gained, giving reliable behavior. 314 requestFocus(); 315 316 Selection.setSelection((Spannable) mFolderName.getText(), 0, 0); 317 mIsEditingName = false; 318 } 319 320 public boolean onEditorAction(TextView v, int actionId, KeyEvent event) { 321 if (actionId == EditorInfo.IME_ACTION_DONE) { 322 dismissEditingName(); 323 return true; 324 } 325 return false; 326 } 327 328 public View getEditTextRegion() { 329 return mFolderName; 330 } 331 332 /** 333 * We need to handle touch events to prevent them from falling through to the workspace below. 334 */ 335 @SuppressLint("ClickableViewAccessibility") 336 @Override 337 public boolean onTouchEvent(MotionEvent ev) { 338 return true; 339 } 340 341 public void setDragController(DragController dragController) { 342 mDragController = dragController; 343 } 344 345 public void setFolderIcon(FolderIcon icon) { 346 mFolderIcon = icon; 347 } 348 349 @Override 350 public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) { 351 // When the folder gets focus, we don't want to announce the list of items. 352 return true; 353 } 354 355 /** 356 * @return the FolderInfo object associated with this folder 357 */ 358 public FolderInfo getInfo() { 359 return mInfo; 360 } 361 362 void bind(FolderInfo info) { 363 mInfo = info; 364 ArrayList<ShortcutInfo> children = info.contents; 365 Collections.sort(children, Utilities.RANK_COMPARATOR); 366 367 ArrayList<ShortcutInfo> overflow = mContent.bindItems(children); 368 369 // If our folder has too many items we prune them from the list. This is an issue 370 // when upgrading from the old Folders implementation which could contain an unlimited 371 // number of items. 372 for (ShortcutInfo item: overflow) { 373 mInfo.remove(item); 374 LauncherModel.deleteItemFromDatabase(mLauncher, item); 375 } 376 377 DragLayer.LayoutParams lp = (DragLayer.LayoutParams) getLayoutParams(); 378 if (lp == null) { 379 lp = new DragLayer.LayoutParams(0, 0); 380 lp.customPosition = true; 381 setLayoutParams(lp); 382 } 383 centerAboutIcon(); 384 385 mItemsInvalidated = true; 386 updateTextViewFocus(); 387 mInfo.addListener(this); 388 389 if (!sDefaultFolderName.contentEquals(mInfo.title)) { 390 mFolderName.setText(mInfo.title); 391 } else { 392 mFolderName.setText(""); 393 } 394 395 // In case any children didn't come across during loading, clean up the folder accordingly 396 mFolderIcon.post(new Runnable() { 397 public void run() { 398 if (getItemCount() <= 1) { 399 replaceFolderWithFinalItem(); 400 } 401 } 402 }); 403 } 404 405 /** 406 * Creates a new UserFolder, inflated from R.layout.user_folder. 407 * 408 * @param context The application's context. 409 * 410 * @return A new UserFolder. 411 */ 412 @SuppressLint("InflateParams") 413 static Folder fromXml(Launcher launcher) { 414 return (Folder) launcher.getLayoutInflater().inflate(R.layout.user_folder, null); 415 } 416 417 /** 418 * This method is intended to make the UserFolder to be visually identical in size and position 419 * to its associated FolderIcon. This allows for a seamless transition into the expanded state. 420 */ 421 private void positionAndSizeAsIcon() { 422 if (!(getParent() instanceof DragLayer)) return; 423 setScaleX(0.8f); 424 setScaleY(0.8f); 425 setAlpha(0f); 426 mState = STATE_SMALL; 427 } 428 429 private void prepareReveal() { 430 setScaleX(1f); 431 setScaleY(1f); 432 setAlpha(1f); 433 mState = STATE_SMALL; 434 } 435 436 public void animateOpen() { 437 if (!(getParent() instanceof DragLayer)) return; 438 439 mContent.completePendingPageChanges(); 440 if (!mDragInProgress) { 441 // Open on the first page. 442 mContent.snapToPageImmediately(0); 443 } 444 445 Animator openFolderAnim = null; 446 final Runnable onCompleteRunnable; 447 if (!Utilities.isLmpOrAbove()) { 448 positionAndSizeAsIcon(); 449 centerAboutIcon(); 450 451 PropertyValuesHolder alpha = PropertyValuesHolder.ofFloat("alpha", 1); 452 PropertyValuesHolder scaleX = PropertyValuesHolder.ofFloat("scaleX", 1.0f); 453 PropertyValuesHolder scaleY = PropertyValuesHolder.ofFloat("scaleY", 1.0f); 454 final ObjectAnimator oa = 455 LauncherAnimUtils.ofPropertyValuesHolder(this, alpha, scaleX, scaleY); 456 oa.setDuration(mExpandDuration); 457 openFolderAnim = oa; 458 459 setLayerType(LAYER_TYPE_HARDWARE, null); 460 onCompleteRunnable = new Runnable() { 461 @Override 462 public void run() { 463 setLayerType(LAYER_TYPE_NONE, null); 464 } 465 }; 466 } else { 467 prepareReveal(); 468 centerAboutIcon(); 469 470 int width = getPaddingLeft() + getPaddingRight() + mContent.getDesiredWidth(); 471 int height = getFolderHeight(); 472 473 float transX = - 0.075f * (width / 2 - getPivotX()); 474 float transY = - 0.075f * (height / 2 - getPivotY()); 475 setTranslationX(transX); 476 setTranslationY(transY); 477 PropertyValuesHolder tx = PropertyValuesHolder.ofFloat("translationX", transX, 0); 478 PropertyValuesHolder ty = PropertyValuesHolder.ofFloat("translationY", transY, 0); 479 480 Animator drift = LauncherAnimUtils.ofPropertyValuesHolder(this, tx, ty); 481 drift.setDuration(mMaterialExpandDuration); 482 drift.setStartDelay(mMaterialExpandStagger); 483 drift.setInterpolator(new LogDecelerateInterpolator(100, 0)); 484 485 int rx = (int) Math.max(Math.max(width - getPivotX(), 0), getPivotX()); 486 int ry = (int) Math.max(Math.max(height - getPivotY(), 0), getPivotY()); 487 float radius = (float) Math.hypot(rx, ry); 488 489 AnimatorSet anim = LauncherAnimUtils.createAnimatorSet(); 490 Animator reveal = LauncherAnimUtils.createCircularReveal(this, (int) getPivotX(), 491 (int) getPivotY(), 0, radius); 492 reveal.setDuration(mMaterialExpandDuration); 493 reveal.setInterpolator(new LogDecelerateInterpolator(100, 0)); 494 495 mContentWrapper.setAlpha(0f); 496 Animator iconsAlpha = LauncherAnimUtils.ofFloat(mContentWrapper, "alpha", 0f, 1f); 497 iconsAlpha.setDuration(mMaterialExpandDuration); 498 iconsAlpha.setStartDelay(mMaterialExpandStagger); 499 iconsAlpha.setInterpolator(new AccelerateInterpolator(1.5f)); 500 501 mFooter.setAlpha(0f); 502 Animator textAlpha = LauncherAnimUtils.ofFloat(mFooter, "alpha", 0f, 1f); 503 textAlpha.setDuration(mMaterialExpandDuration); 504 textAlpha.setStartDelay(mMaterialExpandStagger); 505 textAlpha.setInterpolator(new AccelerateInterpolator(1.5f)); 506 507 anim.play(drift); 508 anim.play(iconsAlpha); 509 anim.play(textAlpha); 510 anim.play(reveal); 511 512 openFolderAnim = anim; 513 514 mContentWrapper.setLayerType(LAYER_TYPE_HARDWARE, null); 515 mFooter.setLayerType(LAYER_TYPE_HARDWARE, null); 516 onCompleteRunnable = new Runnable() { 517 @Override 518 public void run() { 519 mContentWrapper.setLayerType(LAYER_TYPE_NONE, null); 520 mContentWrapper.setLayerType(LAYER_TYPE_NONE, null); 521 } 522 }; 523 } 524 openFolderAnim.addListener(new AnimatorListenerAdapter() { 525 @Override 526 public void onAnimationStart(Animator animation) { 527 sendCustomAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED, 528 mContent.getAccessibilityDescription()); 529 mState = STATE_ANIMATING; 530 } 531 @Override 532 public void onAnimationEnd(Animator animation) { 533 mState = STATE_OPEN; 534 535 if (onCompleteRunnable != null) { 536 onCompleteRunnable.run(); 537 } 538 539 mContent.setFocusOnFirstChild(); 540 } 541 }); 542 543 // Footer animation 544 if (mContent.getPageCount() > 1 && !mInfo.hasOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION)) { 545 int footerWidth = mContent.getDesiredWidth() 546 - mFooter.getPaddingLeft() - mFooter.getPaddingRight(); 547 548 float textWidth = mFolderName.getPaint().measureText(mFolderName.getText().toString()); 549 float translation = (footerWidth - textWidth) / 2; 550 mFolderName.setTranslationX(mContent.mIsRtl ? -translation : translation); 551 mContent.setMarkerScale(0); 552 553 // Do not update the flag if we are in drag mode. The flag will be updated, when we 554 // actually drop the icon. 555 final boolean updateAnimationFlag = !mDragInProgress; 556 openFolderAnim.addListener(new AnimatorListenerAdapter() { 557 558 @Override 559 public void onAnimationEnd(Animator animation) { 560 mFolderName.animate().setDuration(FOLDER_NAME_ANIMATION_DURATION) 561 .translationX(0) 562 .setInterpolator(Utilities.isLmpOrAbove() ? 563 AnimationUtils.loadInterpolator(mLauncher, 564 android.R.interpolator.fast_out_slow_in) 565 : new LogDecelerateInterpolator(100, 0)); 566 mContent.animateMarkers(); 567 568 if (updateAnimationFlag) { 569 mInfo.setOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION, true, mLauncher); 570 } 571 } 572 }); 573 } else { 574 mFolderName.setTranslationX(0); 575 mContent.setMarkerScale(1); 576 } 577 578 openFolderAnim.start(); 579 580 // Make sure the folder picks up the last drag move even if the finger doesn't move. 581 if (mDragController.isDragging()) { 582 mDragController.forceTouchMove(); 583 } 584 585 FolderPagedView pages = (FolderPagedView) mContent; 586 pages.verifyVisibleHighResIcons(pages.getNextPage()); 587 } 588 589 public void beginExternalDrag(ShortcutInfo item) { 590 mCurrentDragInfo = item; 591 mEmptyCellRank = mContent.allocateRankForNewItem(item); 592 mIsExternalDrag = true; 593 mDragInProgress = true; 594 595 // Since this folder opened by another controller, it might not get onDrop or 596 // onDropComplete. Perform cleanup once drag-n-drop ends. 597 mDragController.addDragListener(this); 598 } 599 600 @Override 601 public void onDragStart(DragSource source, ItemInfo info, int dragAction) { } 602 603 @Override 604 public void onDragEnd() { 605 if (mIsExternalDrag && mDragInProgress) { 606 completeDragExit(); 607 } 608 mDragController.removeDragListener(this); 609 } 610 611 @Thunk void sendCustomAccessibilityEvent(int type, String text) { 612 AccessibilityManager accessibilityManager = (AccessibilityManager) 613 getContext().getSystemService(Context.ACCESSIBILITY_SERVICE); 614 if (accessibilityManager.isEnabled()) { 615 AccessibilityEvent event = AccessibilityEvent.obtain(type); 616 onInitializeAccessibilityEvent(event); 617 event.getText().add(text); 618 accessibilityManager.sendAccessibilityEvent(event); 619 } 620 } 621 622 public void animateClosed() { 623 if (!(getParent() instanceof DragLayer)) return; 624 PropertyValuesHolder alpha = PropertyValuesHolder.ofFloat("alpha", 0); 625 PropertyValuesHolder scaleX = PropertyValuesHolder.ofFloat("scaleX", 0.9f); 626 PropertyValuesHolder scaleY = PropertyValuesHolder.ofFloat("scaleY", 0.9f); 627 final ObjectAnimator oa = 628 LauncherAnimUtils.ofPropertyValuesHolder(this, alpha, scaleX, scaleY); 629 630 oa.addListener(new AnimatorListenerAdapter() { 631 @Override 632 public void onAnimationEnd(Animator animation) { 633 onCloseComplete(); 634 setLayerType(LAYER_TYPE_NONE, null); 635 mState = STATE_SMALL; 636 } 637 @Override 638 public void onAnimationStart(Animator animation) { 639 sendCustomAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED, 640 getContext().getString(R.string.folder_closed)); 641 mState = STATE_ANIMATING; 642 } 643 }); 644 oa.setDuration(mExpandDuration); 645 setLayerType(LAYER_TYPE_HARDWARE, null); 646 oa.start(); 647 } 648 649 public boolean acceptDrop(DragObject d) { 650 final ItemInfo item = d.dragInfo; 651 final int itemType = item.itemType; 652 return ((itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || 653 itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT) && 654 !isFull()); 655 } 656 657 public void onDragEnter(DragObject d) { 658 mPrevTargetRank = -1; 659 mOnExitAlarm.cancelAlarm(); 660 // Get the area offset such that the folder only closes if half the drag icon width 661 // is outside the folder area 662 mScrollAreaOffset = d.dragView.getDragRegionWidth() / 2 - d.xOffset; 663 } 664 665 OnAlarmListener mReorderAlarmListener = new OnAlarmListener() { 666 public void onAlarm(Alarm alarm) { 667 mContent.realTimeReorder(mEmptyCellRank, mTargetRank); 668 mEmptyCellRank = mTargetRank; 669 } 670 }; 671 672 @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1) 673 public boolean isLayoutRtl() { 674 return (getLayoutDirection() == LAYOUT_DIRECTION_RTL); 675 } 676 677 @Override 678 public void onDragOver(DragObject d) { 679 onDragOver(d, REORDER_DELAY); 680 } 681 682 private int getTargetRank(DragObject d, float[] recycle) { 683 recycle = d.getVisualCenter(recycle); 684 return mContent.findNearestArea( 685 (int) recycle[0] - getPaddingLeft(), (int) recycle[1] - getPaddingTop()); 686 } 687 688 @Thunk void onDragOver(DragObject d, int reorderDelay) { 689 if (mScrollPauseAlarm.alarmPending()) { 690 return; 691 } 692 final float[] r = new float[2]; 693 mTargetRank = getTargetRank(d, r); 694 695 if (mTargetRank != mPrevTargetRank) { 696 mReorderAlarm.cancelAlarm(); 697 mReorderAlarm.setOnAlarmListener(mReorderAlarmListener); 698 mReorderAlarm.setAlarm(REORDER_DELAY); 699 mPrevTargetRank = mTargetRank; 700 } 701 702 float x = r[0]; 703 int currentPage = mContent.getNextPage(); 704 705 float cellOverlap = mContent.getCurrentCellLayout().getCellWidth() 706 * ICON_OVERSCROLL_WIDTH_FACTOR; 707 boolean isOutsideLeftEdge = x < cellOverlap; 708 boolean isOutsideRightEdge = x > (getWidth() - cellOverlap); 709 710 if (currentPage > 0 && (mContent.mIsRtl ? isOutsideRightEdge : isOutsideLeftEdge)) { 711 showScrollHint(DragController.SCROLL_LEFT, d); 712 } else if (currentPage < (mContent.getPageCount() - 1) 713 && (mContent.mIsRtl ? isOutsideLeftEdge : isOutsideRightEdge)) { 714 showScrollHint(DragController.SCROLL_RIGHT, d); 715 } else { 716 mOnScrollHintAlarm.cancelAlarm(); 717 if (mScrollHintDir != DragController.SCROLL_NONE) { 718 mContent.clearScrollHint(); 719 mScrollHintDir = DragController.SCROLL_NONE; 720 } 721 } 722 } 723 724 private void showScrollHint(int direction, DragObject d) { 725 // Show scroll hint on the right 726 if (mScrollHintDir != direction) { 727 mContent.showScrollHint(direction); 728 mScrollHintDir = direction; 729 } 730 731 // Set alarm for when the hint is complete 732 if (!mOnScrollHintAlarm.alarmPending() || mCurrentScrollDir != direction) { 733 mCurrentScrollDir = direction; 734 mOnScrollHintAlarm.cancelAlarm(); 735 mOnScrollHintAlarm.setOnAlarmListener(new OnScrollHintListener(d)); 736 mOnScrollHintAlarm.setAlarm(SCROLL_HINT_DURATION); 737 738 mReorderAlarm.cancelAlarm(); 739 mTargetRank = mEmptyCellRank; 740 } 741 } 742 743 OnAlarmListener mOnExitAlarmListener = new OnAlarmListener() { 744 public void onAlarm(Alarm alarm) { 745 completeDragExit(); 746 } 747 }; 748 749 public void completeDragExit() { 750 if (mInfo.opened) { 751 mLauncher.closeFolder(); 752 mRearrangeOnClose = true; 753 } else if (mState == STATE_ANIMATING) { 754 mRearrangeOnClose = true; 755 } else { 756 rearrangeChildren(); 757 clearDragInfo(); 758 } 759 } 760 761 private void clearDragInfo() { 762 mCurrentDragInfo = null; 763 mCurrentDragView = null; 764 mSuppressOnAdd = false; 765 mIsExternalDrag = false; 766 } 767 768 public void onDragExit(DragObject d) { 769 // We only close the folder if this is a true drag exit, ie. not because 770 // a drop has occurred above the folder. 771 if (!d.dragComplete) { 772 mOnExitAlarm.setOnAlarmListener(mOnExitAlarmListener); 773 mOnExitAlarm.setAlarm(ON_EXIT_CLOSE_DELAY); 774 } 775 mReorderAlarm.cancelAlarm(); 776 777 mOnScrollHintAlarm.cancelAlarm(); 778 mScrollPauseAlarm.cancelAlarm(); 779 if (mScrollHintDir != DragController.SCROLL_NONE) { 780 mContent.clearScrollHint(); 781 mScrollHintDir = DragController.SCROLL_NONE; 782 } 783 } 784 785 /** 786 * When performing an accessibility drop, onDrop is sent immediately after onDragEnter. So we 787 * need to complete all transient states based on timers. 788 */ 789 @Override 790 public void prepareAccessibilityDrop() { 791 if (mReorderAlarm.alarmPending()) { 792 mReorderAlarm.cancelAlarm(); 793 mReorderAlarmListener.onAlarm(mReorderAlarm); 794 } 795 } 796 797 public void onDropCompleted(final View target, final DragObject d, 798 final boolean isFlingToDelete, final boolean success) { 799 if (mDeferDropAfterUninstall) { 800 Log.d(TAG, "Deferred handling drop because waiting for uninstall."); 801 mDeferredAction = new Runnable() { 802 public void run() { 803 onDropCompleted(target, d, isFlingToDelete, success); 804 mDeferredAction = null; 805 } 806 }; 807 return; 808 } 809 810 boolean beingCalledAfterUninstall = mDeferredAction != null; 811 boolean successfulDrop = 812 success && (!beingCalledAfterUninstall || mUninstallSuccessful); 813 814 if (successfulDrop) { 815 if (mDeleteFolderOnDropCompleted && !mItemAddedBackToSelfViaIcon && target != this) { 816 replaceFolderWithFinalItem(); 817 } 818 } else { 819 // The drag failed, we need to return the item to the folder 820 ShortcutInfo info = (ShortcutInfo) d.dragInfo; 821 View icon = (mCurrentDragView != null && mCurrentDragView.getTag() == info) 822 ? mCurrentDragView : mContent.createNewView(info); 823 ArrayList<View> views = getItemsInReadingOrder(); 824 views.add(info.rank, icon); 825 mContent.arrangeChildren(views, views.size()); 826 mItemsInvalidated = true; 827 828 mSuppressOnAdd = true; 829 mFolderIcon.onDrop(d); 830 mSuppressOnAdd = false; 831 } 832 833 if (target != this) { 834 if (mOnExitAlarm.alarmPending()) { 835 mOnExitAlarm.cancelAlarm(); 836 if (!successfulDrop) { 837 mSuppressFolderDeletion = true; 838 } 839 mScrollPauseAlarm.cancelAlarm(); 840 completeDragExit(); 841 } 842 } 843 844 mDeleteFolderOnDropCompleted = false; 845 mDragInProgress = false; 846 mItemAddedBackToSelfViaIcon = false; 847 mCurrentDragInfo = null; 848 mCurrentDragView = null; 849 mSuppressOnAdd = false; 850 851 // Reordering may have occured, and we need to save the new item locations. We do this once 852 // at the end to prevent unnecessary database operations. 853 updateItemLocationsInDatabaseBatch(); 854 855 // Use the item count to check for multi-page as the folder UI may not have 856 // been refreshed yet. 857 if (getItemCount() <= mContent.itemsPerPage()) { 858 // Show the animation, next time something is added to the folder. 859 mInfo.setOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION, false, mLauncher); 860 } 861 862 } 863 864 @Override 865 public void deferCompleteDropAfterUninstallActivity() { 866 mDeferDropAfterUninstall = true; 867 } 868 869 @Override 870 public void onUninstallActivityReturned(boolean success) { 871 mDeferDropAfterUninstall = false; 872 mUninstallSuccessful = success; 873 if (mDeferredAction != null) { 874 mDeferredAction.run(); 875 } 876 } 877 878 @Override 879 public float getIntrinsicIconScaleFactor() { 880 return 1f; 881 } 882 883 @Override 884 public boolean supportsFlingToDelete() { 885 return true; 886 } 887 888 @Override 889 public boolean supportsAppInfoDropTarget() { 890 return false; 891 } 892 893 @Override 894 public boolean supportsDeleteDropTarget() { 895 return true; 896 } 897 898 @Override 899 public void onFlingToDelete(DragObject d, PointF vec) { 900 // Do nothing 901 } 902 903 @Override 904 public void onFlingToDeleteCompleted() { 905 // Do nothing 906 } 907 908 private void updateItemLocationsInDatabaseBatch() { 909 ArrayList<View> list = getItemsInReadingOrder(); 910 ArrayList<ItemInfo> items = new ArrayList<ItemInfo>(); 911 for (int i = 0; i < list.size(); i++) { 912 View v = list.get(i); 913 ItemInfo info = (ItemInfo) v.getTag(); 914 info.rank = i; 915 items.add(info); 916 } 917 918 LauncherModel.moveItemsInDatabase(mLauncher, items, mInfo.id, 0); 919 } 920 921 public void addItemLocationsInDatabase() { 922 ArrayList<View> list = getItemsInReadingOrder(); 923 for (int i = 0; i < list.size(); i++) { 924 View v = list.get(i); 925 ItemInfo info = (ItemInfo) v.getTag(); 926 LauncherModel.addItemToDatabase(mLauncher, info, mInfo.id, 0, 927 info.cellX, info.cellY); 928 } 929 } 930 931 public void notifyDrop() { 932 if (mDragInProgress) { 933 mItemAddedBackToSelfViaIcon = true; 934 } 935 } 936 937 public boolean isDropEnabled() { 938 return true; 939 } 940 941 public boolean isFull() { 942 return mContent.isFull(); 943 } 944 945 private void centerAboutIcon() { 946 DragLayer.LayoutParams lp = (DragLayer.LayoutParams) getLayoutParams(); 947 948 DragLayer parent = (DragLayer) mLauncher.findViewById(R.id.drag_layer); 949 int width = getPaddingLeft() + getPaddingRight() + mContent.getDesiredWidth(); 950 int height = getFolderHeight(); 951 952 float scale = parent.getDescendantRectRelativeToSelf(mFolderIcon, sTempRect); 953 954 DeviceProfile grid = mLauncher.getDeviceProfile(); 955 956 int centerX = (int) (sTempRect.left + sTempRect.width() * scale / 2); 957 int centerY = (int) (sTempRect.top + sTempRect.height() * scale / 2); 958 int centeredLeft = centerX - width / 2; 959 int centeredTop = centerY - height / 2; 960 int currentPage = mLauncher.getWorkspace().getNextPage(); 961 // In case the workspace is scrolling, we need to use the final scroll to compute 962 // the folders bounds. 963 mLauncher.getWorkspace().setFinalScrollForPageChange(currentPage); 964 // We first fetch the currently visible CellLayoutChildren 965 CellLayout currentLayout = (CellLayout) mLauncher.getWorkspace().getChildAt(currentPage); 966 ShortcutAndWidgetContainer boundingLayout = currentLayout.getShortcutsAndWidgets(); 967 Rect bounds = new Rect(); 968 parent.getDescendantRectRelativeToSelf(boundingLayout, bounds); 969 // We reset the workspaces scroll 970 mLauncher.getWorkspace().resetFinalScrollForPageChange(currentPage); 971 972 // We need to bound the folder to the currently visible CellLayoutChildren 973 int left = Math.min(Math.max(bounds.left, centeredLeft), 974 bounds.left + bounds.width() - width); 975 int top = Math.min(Math.max(bounds.top, centeredTop), 976 bounds.top + bounds.height() - height); 977 if (grid.isPhone && (grid.availableWidthPx - width) < grid.iconSizePx) { 978 // Center the folder if it is full (on phones only) 979 left = (grid.availableWidthPx - width) / 2; 980 } else if (width >= bounds.width()) { 981 // If the folder doesn't fit within the bounds, center it about the desired bounds 982 left = bounds.left + (bounds.width() - width) / 2; 983 } 984 if (height >= bounds.height()) { 985 top = bounds.top + (bounds.height() - height) / 2; 986 } 987 988 int folderPivotX = width / 2 + (centeredLeft - left); 989 int folderPivotY = height / 2 + (centeredTop - top); 990 setPivotX(folderPivotX); 991 setPivotY(folderPivotY); 992 mFolderIconPivotX = (int) (mFolderIcon.getMeasuredWidth() * 993 (1.0f * folderPivotX / width)); 994 mFolderIconPivotY = (int) (mFolderIcon.getMeasuredHeight() * 995 (1.0f * folderPivotY / height)); 996 997 lp.width = width; 998 lp.height = height; 999 lp.x = left; 1000 lp.y = top; 1001 } 1002 1003 float getPivotXForIconAnimation() { 1004 return mFolderIconPivotX; 1005 } 1006 float getPivotYForIconAnimation() { 1007 return mFolderIconPivotY; 1008 } 1009 1010 private int getContentAreaHeight() { 1011 DeviceProfile grid = mLauncher.getDeviceProfile(); 1012 Rect workspacePadding = grid.getWorkspacePadding(mContent.mIsRtl); 1013 int maxContentAreaHeight = grid.availableHeightPx - 1014 workspacePadding.top - workspacePadding.bottom - 1015 mFooterHeight; 1016 int height = Math.min(maxContentAreaHeight, 1017 mContent.getDesiredHeight()); 1018 return Math.max(height, MIN_CONTENT_DIMEN); 1019 } 1020 1021 private int getContentAreaWidth() { 1022 return Math.max(mContent.getDesiredWidth(), MIN_CONTENT_DIMEN); 1023 } 1024 1025 private int getFolderHeight() { 1026 return getFolderHeight(getContentAreaHeight()); 1027 } 1028 1029 private int getFolderHeight(int contentAreaHeight) { 1030 return getPaddingTop() + getPaddingBottom() + contentAreaHeight + mFooterHeight; 1031 } 1032 1033 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 1034 int contentWidth = getContentAreaWidth(); 1035 int contentHeight = getContentAreaHeight(); 1036 1037 int contentAreaWidthSpec = MeasureSpec.makeMeasureSpec(contentWidth, MeasureSpec.EXACTLY); 1038 int contentAreaHeightSpec = MeasureSpec.makeMeasureSpec(contentHeight, MeasureSpec.EXACTLY); 1039 1040 mContent.setFixedSize(contentWidth, contentHeight); 1041 mContentWrapper.measure(contentAreaWidthSpec, contentAreaHeightSpec); 1042 1043 if (mContent.getChildCount() > 0) { 1044 int cellIconGap = (mContent.getPageAt(0).getCellWidth() 1045 - mLauncher.getDeviceProfile().iconSizePx) / 2; 1046 mFooter.setPadding(mContent.getPaddingLeft() + cellIconGap, 1047 mFooter.getPaddingTop(), 1048 mContent.getPaddingRight() + cellIconGap, 1049 mFooter.getPaddingBottom()); 1050 } 1051 mFooter.measure(contentAreaWidthSpec, 1052 MeasureSpec.makeMeasureSpec(mFooterHeight, MeasureSpec.EXACTLY)); 1053 1054 int folderWidth = getPaddingLeft() + getPaddingRight() + contentWidth; 1055 int folderHeight = getFolderHeight(contentHeight); 1056 setMeasuredDimension(folderWidth, folderHeight); 1057 } 1058 1059 /** 1060 * Rearranges the children based on their rank. 1061 */ 1062 public void rearrangeChildren() { 1063 rearrangeChildren(-1); 1064 } 1065 1066 /** 1067 * Rearranges the children based on their rank. 1068 * @param itemCount if greater than the total children count, empty spaces are left at the end, 1069 * otherwise it is ignored. 1070 */ 1071 public void rearrangeChildren(int itemCount) { 1072 ArrayList<View> views = getItemsInReadingOrder(); 1073 mContent.arrangeChildren(views, Math.max(itemCount, views.size())); 1074 mItemsInvalidated = true; 1075 } 1076 1077 // TODO remove this once GSA code fix is submitted 1078 public ViewGroup getContent() { 1079 return (ViewGroup) mContent; 1080 } 1081 1082 public int getItemCount() { 1083 return mContent.getItemCount(); 1084 } 1085 1086 @Thunk void onCloseComplete() { 1087 DragLayer parent = (DragLayer) getParent(); 1088 if (parent != null) { 1089 parent.removeView(this); 1090 } 1091 mDragController.removeDropTarget((DropTarget) this); 1092 clearFocus(); 1093 mFolderIcon.requestFocus(); 1094 1095 if (mRearrangeOnClose) { 1096 rearrangeChildren(); 1097 mRearrangeOnClose = false; 1098 } 1099 if (getItemCount() <= 1) { 1100 if (!mDragInProgress && !mSuppressFolderDeletion) { 1101 replaceFolderWithFinalItem(); 1102 } else if (mDragInProgress) { 1103 mDeleteFolderOnDropCompleted = true; 1104 } 1105 } 1106 mSuppressFolderDeletion = false; 1107 clearDragInfo(); 1108 } 1109 1110 @Thunk void replaceFolderWithFinalItem() { 1111 // Add the last remaining child to the workspace in place of the folder 1112 Runnable onCompleteRunnable = new Runnable() { 1113 @Override 1114 public void run() { 1115 CellLayout cellLayout = mLauncher.getCellLayout(mInfo.container, mInfo.screenId); 1116 1117 View child = null; 1118 // Move the item from the folder to the workspace, in the position of the folder 1119 if (getItemCount() == 1) { 1120 ShortcutInfo finalItem = mInfo.contents.get(0); 1121 child = mLauncher.createShortcut(cellLayout, finalItem); 1122 LauncherModel.addOrMoveItemInDatabase(mLauncher, finalItem, mInfo.container, 1123 mInfo.screenId, mInfo.cellX, mInfo.cellY); 1124 } 1125 if (getItemCount() <= 1) { 1126 // Remove the folder 1127 LauncherModel.deleteItemFromDatabase(mLauncher, mInfo); 1128 if (cellLayout != null) { 1129 // b/12446428 -- sometimes the cell layout has already gone away? 1130 cellLayout.removeView(mFolderIcon); 1131 } 1132 if (mFolderIcon instanceof DropTarget) { 1133 mDragController.removeDropTarget((DropTarget) mFolderIcon); 1134 } 1135 mLauncher.removeFolder(mInfo); 1136 } 1137 // We add the child after removing the folder to prevent both from existing at 1138 // the same time in the CellLayout. We need to add the new item with addInScreenFromBind() 1139 // to ensure that hotseat items are placed correctly. 1140 if (child != null) { 1141 mLauncher.getWorkspace().addInScreenFromBind(child, mInfo.container, mInfo.screenId, 1142 mInfo.cellX, mInfo.cellY, mInfo.spanX, mInfo.spanY); 1143 } 1144 } 1145 }; 1146 View finalChild = mContent.getLastItem(); 1147 if (finalChild != null) { 1148 mFolderIcon.performDestroyAnimation(finalChild, onCompleteRunnable); 1149 } else { 1150 onCompleteRunnable.run(); 1151 } 1152 mDestroyed = true; 1153 } 1154 1155 boolean isDestroyed() { 1156 return mDestroyed; 1157 } 1158 1159 // This method keeps track of the last item in the folder for the purposes 1160 // of keyboard focus 1161 public void updateTextViewFocus() { 1162 View lastChild = mContent.getLastItem(); 1163 if (lastChild != null) { 1164 mFolderName.setNextFocusDownId(lastChild.getId()); 1165 mFolderName.setNextFocusRightId(lastChild.getId()); 1166 mFolderName.setNextFocusLeftId(lastChild.getId()); 1167 mFolderName.setNextFocusUpId(lastChild.getId()); 1168 } 1169 } 1170 1171 public void onDrop(DragObject d) { 1172 Runnable cleanUpRunnable = null; 1173 1174 // If we are coming from All Apps space, we defer removing the extra empty screen 1175 // until the folder closes 1176 if (d.dragSource != mLauncher.getWorkspace() && !(d.dragSource instanceof Folder)) { 1177 cleanUpRunnable = new Runnable() { 1178 @Override 1179 public void run() { 1180 mLauncher.exitSpringLoadedDragModeDelayed(true, 1181 Launcher.EXIT_SPRINGLOADED_MODE_SHORT_TIMEOUT, 1182 null); 1183 } 1184 }; 1185 } 1186 1187 // If the icon was dropped while the page was being scrolled, we need to compute 1188 // the target location again such that the icon is placed of the final page. 1189 if (!mContent.rankOnCurrentPage(mEmptyCellRank)) { 1190 // Reorder again. 1191 mTargetRank = getTargetRank(d, null); 1192 1193 // Rearrange items immediately. 1194 mReorderAlarmListener.onAlarm(mReorderAlarm); 1195 1196 mOnScrollHintAlarm.cancelAlarm(); 1197 mScrollPauseAlarm.cancelAlarm(); 1198 } 1199 mContent.completePendingPageChanges(); 1200 1201 View currentDragView; 1202 ShortcutInfo si = mCurrentDragInfo; 1203 if (mIsExternalDrag) { 1204 currentDragView = mContent.createAndAddViewForRank(si, mEmptyCellRank); 1205 // Actually move the item in the database if it was an external drag. Call this 1206 // before creating the view, so that ShortcutInfo is updated appropriately. 1207 LauncherModel.addOrMoveItemInDatabase( 1208 mLauncher, si, mInfo.id, 0, si.cellX, si.cellY); 1209 1210 // We only need to update the locations if it doesn't get handled in #onDropCompleted. 1211 if (d.dragSource != this) { 1212 updateItemLocationsInDatabaseBatch(); 1213 } 1214 mIsExternalDrag = false; 1215 } else { 1216 currentDragView = mCurrentDragView; 1217 mContent.addViewForRank(currentDragView, si, mEmptyCellRank); 1218 } 1219 1220 if (d.dragView.hasDrawn()) { 1221 1222 // Temporarily reset the scale such that the animation target gets calculated correctly. 1223 float scaleX = getScaleX(); 1224 float scaleY = getScaleY(); 1225 setScaleX(1.0f); 1226 setScaleY(1.0f); 1227 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, currentDragView, 1228 cleanUpRunnable, null); 1229 setScaleX(scaleX); 1230 setScaleY(scaleY); 1231 } else { 1232 d.deferDragViewCleanupPostAnimation = false; 1233 currentDragView.setVisibility(VISIBLE); 1234 } 1235 mItemsInvalidated = true; 1236 rearrangeChildren(); 1237 1238 // Temporarily suppress the listener, as we did all the work already here. 1239 mSuppressOnAdd = true; 1240 mInfo.add(si); 1241 mSuppressOnAdd = false; 1242 // Clear the drag info, as it is no longer being dragged. 1243 mCurrentDragInfo = null; 1244 mDragInProgress = false; 1245 1246 if (mContent.getPageCount() > 1) { 1247 // The animation has already been shown while opening the folder. 1248 mInfo.setOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION, true, mLauncher); 1249 } 1250 } 1251 1252 // This is used so the item doesn't immediately appear in the folder when added. In one case 1253 // we need to create the illusion that the item isn't added back to the folder yet, to 1254 // to correspond to the animation of the icon back into the folder. This is 1255 public void hideItem(ShortcutInfo info) { 1256 View v = getViewForInfo(info); 1257 v.setVisibility(INVISIBLE); 1258 } 1259 public void showItem(ShortcutInfo info) { 1260 View v = getViewForInfo(info); 1261 v.setVisibility(VISIBLE); 1262 } 1263 1264 @Override 1265 public void onAdd(ShortcutInfo item) { 1266 // If the item was dropped onto this open folder, we have done the work associated 1267 // with adding the item to the folder, as indicated by mSuppressOnAdd being set 1268 if (mSuppressOnAdd) return; 1269 mContent.createAndAddViewForRank(item, mContent.allocateRankForNewItem(item)); 1270 mItemsInvalidated = true; 1271 LauncherModel.addOrMoveItemInDatabase( 1272 mLauncher, item, mInfo.id, 0, item.cellX, item.cellY); 1273 } 1274 1275 public void onRemove(ShortcutInfo item) { 1276 mItemsInvalidated = true; 1277 // If this item is being dragged from this open folder, we have already handled 1278 // the work associated with removing the item, so we don't have to do anything here. 1279 if (item == mCurrentDragInfo) return; 1280 View v = getViewForInfo(item); 1281 mContent.removeItem(v); 1282 if (mState == STATE_ANIMATING) { 1283 mRearrangeOnClose = true; 1284 } else { 1285 rearrangeChildren(); 1286 } 1287 if (getItemCount() <= 1) { 1288 replaceFolderWithFinalItem(); 1289 } 1290 } 1291 1292 private View getViewForInfo(final ShortcutInfo item) { 1293 return mContent.iterateOverItems(new ItemOperator() { 1294 1295 @Override 1296 public boolean evaluate(ItemInfo info, View view, View parent) { 1297 return info == item; 1298 } 1299 }); 1300 } 1301 1302 public void onItemsChanged() { 1303 updateTextViewFocus(); 1304 } 1305 1306 public void onTitleChanged(CharSequence title) { 1307 } 1308 1309 public ArrayList<View> getItemsInReadingOrder() { 1310 if (mItemsInvalidated) { 1311 mItemsInReadingOrder.clear(); 1312 mContent.iterateOverItems(new ItemOperator() { 1313 1314 @Override 1315 public boolean evaluate(ItemInfo info, View view, View parent) { 1316 mItemsInReadingOrder.add(view); 1317 return false; 1318 } 1319 }); 1320 mItemsInvalidated = false; 1321 } 1322 return mItemsInReadingOrder; 1323 } 1324 1325 public void getLocationInDragLayer(int[] loc) { 1326 mLauncher.getDragLayer().getLocationInDragLayer(this, loc); 1327 } 1328 1329 public void onFocusChange(View v, boolean hasFocus) { 1330 if (v == mFolderName && hasFocus) { 1331 startEditingFolderName(); 1332 } 1333 } 1334 1335 @Override 1336 public void getHitRectRelativeToDragLayer(Rect outRect) { 1337 getHitRect(outRect); 1338 outRect.left -= mScrollAreaOffset; 1339 outRect.right += mScrollAreaOffset; 1340 } 1341 1342 @Override 1343 public void fillInLaunchSourceData(Bundle sourceData) { 1344 // Fill in from the folder icon's launch source provider first 1345 Stats.LaunchSourceUtils.populateSourceDataFromAncestorProvider(mFolderIcon, sourceData); 1346 sourceData.putString(Stats.SOURCE_EXTRA_SUB_CONTAINER, Stats.SUB_CONTAINER_FOLDER); 1347 sourceData.putInt(Stats.SOURCE_EXTRA_SUB_CONTAINER_PAGE, mContent.getCurrentPage()); 1348 } 1349 1350 private class OnScrollHintListener implements OnAlarmListener { 1351 1352 private final DragObject mDragObject; 1353 1354 OnScrollHintListener(DragObject object) { 1355 mDragObject = object; 1356 } 1357 1358 /** 1359 * Scroll hint has been shown long enough. Now scroll to appropriate page. 1360 */ 1361 @Override 1362 public void onAlarm(Alarm alarm) { 1363 if (mCurrentScrollDir == DragController.SCROLL_LEFT) { 1364 mContent.scrollLeft(); 1365 mScrollHintDir = DragController.SCROLL_NONE; 1366 } else if (mCurrentScrollDir == DragController.SCROLL_RIGHT) { 1367 mContent.scrollRight(); 1368 mScrollHintDir = DragController.SCROLL_NONE; 1369 } else { 1370 // This should not happen 1371 return; 1372 } 1373 mCurrentScrollDir = DragController.SCROLL_NONE; 1374 1375 // Pause drag event until the scrolling is finished 1376 mScrollPauseAlarm.setOnAlarmListener(new OnScrollFinishedListener(mDragObject)); 1377 mScrollPauseAlarm.setAlarm(DragController.RESCROLL_DELAY); 1378 } 1379 } 1380 1381 private class OnScrollFinishedListener implements OnAlarmListener { 1382 1383 private final DragObject mDragObject; 1384 1385 OnScrollFinishedListener(DragObject object) { 1386 mDragObject = object; 1387 } 1388 1389 /** 1390 * Page scroll is complete. 1391 */ 1392 @Override 1393 public void onAlarm(Alarm alarm) { 1394 // Reorder immediately on page change. 1395 onDragOver(mDragObject, 1); 1396 } 1397 } 1398} 1399