Folder.java revision 47328fd53f43fd0c2ed14ad925dd04483f9229a0
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.Point; 29import android.graphics.PointF; 30import android.graphics.Rect; 31import android.os.Build; 32import android.text.InputType; 33import android.text.Selection; 34import android.text.Spannable; 35import android.util.AttributeSet; 36import android.util.Log; 37import android.view.ActionMode; 38import android.view.FocusFinder; 39import android.view.KeyEvent; 40import android.view.Menu; 41import android.view.MenuItem; 42import android.view.MotionEvent; 43import android.view.View; 44import android.view.ViewDebug; 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.Alarm; 55import com.android.launcher3.CellLayout; 56import com.android.launcher3.CellLayout.CellInfo; 57import com.android.launcher3.DeviceProfile; 58import com.android.launcher3.DragSource; 59import com.android.launcher3.DropTarget; 60import com.android.launcher3.ExtendedEditText; 61import com.android.launcher3.FolderInfo; 62import com.android.launcher3.FolderInfo.FolderListener; 63import com.android.launcher3.ItemInfo; 64import com.android.launcher3.Launcher; 65import com.android.launcher3.LauncherAnimUtils; 66import com.android.launcher3.LauncherModel; 67import com.android.launcher3.LauncherSettings; 68import com.android.launcher3.LogDecelerateInterpolator; 69import com.android.launcher3.OnAlarmListener; 70import com.android.launcher3.R; 71import com.android.launcher3.ShortcutInfo; 72import com.android.launcher3.UninstallDropTarget.DropTargetSource; 73import com.android.launcher3.Utilities; 74import com.android.launcher3.Workspace.ItemOperator; 75import com.android.launcher3.accessibility.LauncherAccessibilityDelegate.AccessibilityDragSource; 76import com.android.launcher3.config.FeatureFlags; 77import com.android.launcher3.dragndrop.DragController; 78import com.android.launcher3.dragndrop.DragController.DragListener; 79import com.android.launcher3.dragndrop.DragLayer; 80import com.android.launcher3.logging.UserEventDispatcher.LaunchSourceProvider; 81import com.android.launcher3.pageindicators.PageIndicatorDots; 82import com.android.launcher3.userevent.nano.LauncherLogProto; 83import com.android.launcher3.userevent.nano.LauncherLogProto.Target; 84import com.android.launcher3.util.Thunk; 85import com.android.launcher3.util.UiThreadCircularReveal; 86 87import java.util.ArrayList; 88import java.util.Collections; 89import java.util.Comparator; 90 91/** 92 * Represents a set of icons chosen by the user or generated by the system. 93 */ 94public class Folder extends LinearLayout implements DragSource, View.OnClickListener, 95 View.OnLongClickListener, DropTarget, FolderListener, TextView.OnEditorActionListener, 96 View.OnFocusChangeListener, DragListener, DropTargetSource, AccessibilityDragSource, 97 LaunchSourceProvider { 98 private static final String TAG = "Launcher.Folder"; 99 100 /** 101 * We avoid measuring {@link #mContentWrapper} with a 0 width or height, as this 102 * results in CellLayout being measured as UNSPECIFIED, which it does not support. 103 */ 104 private static final int MIN_CONTENT_DIMEN = 5; 105 106 static final int STATE_NONE = -1; 107 static final int STATE_SMALL = 0; 108 static final int STATE_ANIMATING = 1; 109 static final int STATE_OPEN = 2; 110 111 /** 112 * Time for which the scroll hint is shown before automatically changing page. 113 */ 114 public static final int SCROLL_HINT_DURATION = DragController.SCROLL_DELAY; 115 116 /** 117 * Fraction of icon width which behave as scroll region. 118 */ 119 private static final float ICON_OVERSCROLL_WIDTH_FACTOR = 0.45f; 120 121 private static final int FOLDER_NAME_ANIMATION_DURATION = 633; 122 123 private static final int REORDER_DELAY = 250; 124 private static final int ON_EXIT_CLOSE_DELAY = 400; 125 private static final Rect sTempRect = new Rect(); 126 127 private static String sDefaultFolderName; 128 private static String sHintText; 129 130 private final Alarm mReorderAlarm = new Alarm(); 131 private final Alarm mOnExitAlarm = new Alarm(); 132 private final Alarm mOnScrollHintAlarm = new Alarm(); 133 @Thunk final Alarm mScrollPauseAlarm = new Alarm(); 134 135 @Thunk final ArrayList<View> mItemsInReadingOrder = new ArrayList<View>(); 136 137 private final int mExpandDuration; 138 private final int mMaterialExpandDuration; 139 private final int mMaterialExpandStagger; 140 141 private final InputMethodManager mInputMethodManager; 142 143 protected final Launcher mLauncher; 144 protected DragController mDragController; 145 public FolderInfo mInfo; 146 147 @Thunk FolderIcon mFolderIcon; 148 149 @Thunk FolderPagedView mContent; 150 @Thunk View mContentWrapper; 151 public ExtendedEditText mFolderName; 152 private PageIndicatorDots mPageIndicator; 153 154 private View mFooter; 155 private int mFooterHeight; 156 157 // Cell ranks used for drag and drop 158 @Thunk int mTargetRank, mPrevTargetRank, mEmptyCellRank; 159 160 @ViewDebug.ExportedProperty(category = "launcher", 161 mapping = { 162 @ViewDebug.IntToString(from = STATE_NONE, to = "STATE_NONE"), 163 @ViewDebug.IntToString(from = STATE_SMALL, to = "STATE_SMALL"), 164 @ViewDebug.IntToString(from = STATE_ANIMATING, to = "STATE_ANIMATING"), 165 @ViewDebug.IntToString(from = STATE_OPEN, to = "STATE_OPEN"), 166 }) 167 @Thunk int mState = STATE_NONE; 168 @ViewDebug.ExportedProperty(category = "launcher") 169 private boolean mRearrangeOnClose = false; 170 boolean mItemsInvalidated = false; 171 private ShortcutInfo mCurrentDragInfo; 172 private View mCurrentDragView; 173 private boolean mIsExternalDrag; 174 boolean mSuppressOnAdd = false; 175 private boolean mDragInProgress = false; 176 private boolean mDeleteFolderOnDropCompleted = false; 177 private boolean mSuppressFolderDeletion = false; 178 private boolean mItemAddedBackToSelfViaIcon = false; 179 @Thunk float mFolderIconPivotX; 180 @Thunk float mFolderIconPivotY; 181 private boolean mIsEditingName = false; 182 183 @ViewDebug.ExportedProperty(category = "launcher") 184 private boolean mDestroyed; 185 186 @Thunk Runnable mDeferredAction; 187 private boolean mDeferDropAfterUninstall; 188 private boolean mUninstallSuccessful; 189 190 // Folder scrolling 191 private int mScrollAreaOffset; 192 193 @Thunk int mScrollHintDir = DragController.SCROLL_NONE; 194 @Thunk int mCurrentScrollDir = DragController.SCROLL_NONE; 195 196 /** 197 * Used to inflate the Workspace from XML. 198 * 199 * @param context The application's context. 200 * @param attrs The attributes set containing the Workspace's customization values. 201 */ 202 public Folder(Context context, AttributeSet attrs) { 203 super(context, attrs); 204 setAlwaysDrawnWithCacheEnabled(false); 205 mInputMethodManager = (InputMethodManager) 206 getContext().getSystemService(Context.INPUT_METHOD_SERVICE); 207 208 Resources res = getResources(); 209 mExpandDuration = res.getInteger(R.integer.config_folderExpandDuration); 210 mMaterialExpandDuration = res.getInteger(R.integer.config_materialFolderExpandDuration); 211 mMaterialExpandStagger = res.getInteger(R.integer.config_materialFolderExpandStagger); 212 213 if (sDefaultFolderName == null) { 214 sDefaultFolderName = res.getString(R.string.folder_name); 215 } 216 if (sHintText == null) { 217 sHintText = res.getString(R.string.folder_hint_text); 218 } 219 mLauncher = (Launcher) context; 220 // We need this view to be focusable in touch mode so that when text editing of the folder 221 // name is complete, we have something to focus on, thus hiding the cursor and giving 222 // reliable behavior when clicking the text field (since it will always gain focus on click). 223 setFocusableInTouchMode(true); 224 } 225 226 @Override 227 protected void onFinishInflate() { 228 super.onFinishInflate(); 229 mContentWrapper = findViewById(R.id.folder_content_wrapper); 230 mContent = (FolderPagedView) findViewById(R.id.folder_content); 231 mContent.setFolder(this); 232 233 mPageIndicator = (PageIndicatorDots) findViewById(R.id.folder_page_indicator); 234 mFolderName = (ExtendedEditText) findViewById(R.id.folder_name); 235 mFolderName.setOnBackKeyListener(new ExtendedEditText.OnBackKeyListener() { 236 @Override 237 public boolean onBackKey() { 238 // Close the activity on back key press 239 doneEditingFolderName(true); 240 return false; 241 } 242 }); 243 mFolderName.setOnFocusChangeListener(this); 244 245 if (!Utilities.ATLEAST_MARSHMALLOW) { 246 // We disable action mode in older OSes where floating selection menu is not yet 247 // available. 248 mFolderName.setCustomSelectionActionModeCallback(new ActionMode.Callback() { 249 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 250 return false; 251 } 252 253 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 254 return false; 255 } 256 257 public void onDestroyActionMode(ActionMode mode) { 258 } 259 260 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 261 return false; 262 } 263 }); 264 } 265 mFolderName.setOnEditorActionListener(this); 266 mFolderName.setSelectAllOnFocus(true); 267 mFolderName.setInputType(mFolderName.getInputType() | 268 InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS | InputType.TYPE_TEXT_FLAG_CAP_WORDS); 269 270 mFooter = findViewById(R.id.folder_footer); 271 272 // We find out how tall footer wants to be (it is set to wrap_content), so that 273 // we can allocate the appropriate amount of space for it. 274 int measureSpec = MeasureSpec.UNSPECIFIED; 275 mFooter.measure(measureSpec, measureSpec); 276 mFooterHeight = mFooter.getMeasuredHeight(); 277 } 278 279 public void onClick(View v) { 280 Object tag = v.getTag(); 281 if (tag instanceof ShortcutInfo) { 282 mLauncher.onClick(v); 283 } 284 } 285 286 public boolean onLongClick(View v) { 287 // Return if global dragging is not enabled 288 if (!mLauncher.isDraggingEnabled()) return true; 289 return beginDrag(v, false); 290 } 291 292 private boolean beginDrag(View v, boolean accessible) { 293 Object tag = v.getTag(); 294 if (tag instanceof ShortcutInfo) { 295 ShortcutInfo item = (ShortcutInfo) tag; 296 if (!v.isInTouchMode()) { 297 return false; 298 } 299 300 mLauncher.getWorkspace().beginDragShared(v, new Point(), this, accessible); 301 302 mCurrentDragInfo = item; 303 mEmptyCellRank = item.rank; 304 mCurrentDragView = v; 305 306 mContent.removeItem(mCurrentDragView); 307 mInfo.remove(mCurrentDragInfo, true); 308 mDragInProgress = true; 309 mItemAddedBackToSelfViaIcon = false; 310 } 311 return true; 312 } 313 314 @Override 315 public void startDrag(CellInfo cellInfo, boolean accessible) { 316 beginDrag(cellInfo.cell, accessible); 317 } 318 319 @Override 320 public void enableAccessibleDrag(boolean enable) { 321 mLauncher.getDropTargetBar().enableAccessibleDrag(enable); 322 for (int i = 0; i < mContent.getChildCount(); i++) { 323 mContent.getPageAt(i).enableAccessibleDrag(enable, CellLayout.FOLDER_ACCESSIBILITY_DRAG); 324 } 325 326 mFooter.setImportantForAccessibility(enable ? IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS : 327 IMPORTANT_FOR_ACCESSIBILITY_AUTO); 328 mLauncher.getWorkspace().setAddNewPageOnDrag(!enable); 329 } 330 331 public boolean isEditingName() { 332 return mIsEditingName; 333 } 334 335 public void startEditingFolderName() { 336 post(new Runnable() { 337 @Override 338 public void run() { 339 mFolderName.setHint(""); 340 mIsEditingName = true; 341 } 342 }); 343 } 344 345 public void dismissEditingName() { 346 mInputMethodManager.hideSoftInputFromWindow(getWindowToken(), 0); 347 doneEditingFolderName(true); 348 } 349 350 public void doneEditingFolderName(boolean commit) { 351 mFolderName.setHint(sHintText); 352 // Convert to a string here to ensure that no other state associated with the text field 353 // gets saved. 354 String newTitle = mFolderName.getText().toString(); 355 mInfo.setTitle(newTitle); 356 LauncherModel.updateItemInDatabase(mLauncher, mInfo); 357 358 if (commit) { 359 sendCustomAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED, 360 getContext().getString(R.string.folder_renamed, newTitle)); 361 } 362 363 // This ensures that focus is gained every time the field is clicked, which selects all 364 // the text and brings up the soft keyboard if necessary. 365 mFolderName.clearFocus(); 366 367 Selection.setSelection((Spannable) mFolderName.getText(), 0, 0); 368 mIsEditingName = false; 369 } 370 371 public boolean onEditorAction(TextView v, int actionId, KeyEvent event) { 372 if (actionId == EditorInfo.IME_ACTION_DONE) { 373 dismissEditingName(); 374 return true; 375 } 376 return false; 377 } 378 379 public View getEditTextRegion() { 380 return mFolderName; 381 } 382 383 /** 384 * We need to handle touch events to prevent them from falling through to the workspace below. 385 */ 386 @SuppressLint("ClickableViewAccessibility") 387 @Override 388 public boolean onTouchEvent(MotionEvent ev) { 389 return true; 390 } 391 392 public void setDragController(DragController dragController) { 393 mDragController = dragController; 394 } 395 396 public void setFolderIcon(FolderIcon icon) { 397 mFolderIcon = icon; 398 } 399 400 @Override 401 protected void onAttachedToWindow() { 402 // requestFocus() causes the focus onto the folder itself, which doesn't cause visual 403 // effect but the next arrow key can start the keyboard focus inside of the folder, not 404 // the folder itself. 405 requestFocus(); 406 super.onAttachedToWindow(); 407 } 408 409 @Override 410 public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) { 411 // When the folder gets focus, we don't want to announce the list of items. 412 return true; 413 } 414 415 @Override 416 public View focusSearch(int direction) { 417 // When the folder is focused, further focus search should be within the folder contents. 418 return FocusFinder.getInstance().findNextFocus(this, null, direction); 419 } 420 421 /** 422 * @return the FolderInfo object associated with this folder 423 */ 424 public FolderInfo getInfo() { 425 return mInfo; 426 } 427 428 void bind(FolderInfo info) { 429 mInfo = info; 430 ArrayList<ShortcutInfo> children = info.contents; 431 Collections.sort(children, ITEM_POS_COMPARATOR); 432 433 ArrayList<ShortcutInfo> overflow = mContent.bindItems(children); 434 435 // If our folder has too many items we prune them from the list. This is an issue 436 // when upgrading from the old Folders implementation which could contain an unlimited 437 // number of items. 438 // TODO: Remove this, as with multi-page folders, there will never be any overflow 439 for (ShortcutInfo item: overflow) { 440 mInfo.remove(item, false); 441 LauncherModel.deleteItemFromDatabase(mLauncher, item); 442 } 443 444 DragLayer.LayoutParams lp = (DragLayer.LayoutParams) getLayoutParams(); 445 if (lp == null) { 446 lp = new DragLayer.LayoutParams(0, 0); 447 lp.customPosition = true; 448 setLayoutParams(lp); 449 } 450 centerAboutIcon(); 451 452 mItemsInvalidated = true; 453 updateTextViewFocus(); 454 mInfo.addListener(this); 455 456 if (!sDefaultFolderName.contentEquals(mInfo.title)) { 457 mFolderName.setText(mInfo.title); 458 } else { 459 mFolderName.setText(""); 460 } 461 462 // In case any children didn't come across during loading, clean up the folder accordingly 463 mFolderIcon.post(new Runnable() { 464 public void run() { 465 if (getItemCount() <= 1) { 466 replaceFolderWithFinalItem(); 467 } 468 } 469 }); 470 } 471 472 /** 473 * Creates a new UserFolder, inflated from R.layout.user_folder. 474 * 475 * @param launcher The main activity. 476 * 477 * @return A new UserFolder. 478 */ 479 @SuppressLint("InflateParams") 480 static Folder fromXml(Launcher launcher) { 481 return (Folder) launcher.getLayoutInflater().inflate( 482 FeatureFlags.LAUNCHER3_DISABLE_ICON_NORMALIZATION 483 ? R.layout.user_folder : R.layout.user_folder_icon_normalized, null); 484 } 485 486 /** 487 * This method is intended to make the UserFolder to be visually identical in size and position 488 * to its associated FolderIcon. This allows for a seamless transition into the expanded state. 489 */ 490 private void positionAndSizeAsIcon() { 491 if (!(getParent() instanceof DragLayer)) return; 492 setScaleX(0.8f); 493 setScaleY(0.8f); 494 setAlpha(0f); 495 mState = STATE_SMALL; 496 } 497 498 private void prepareReveal() { 499 setScaleX(1f); 500 setScaleY(1f); 501 setAlpha(1f); 502 mState = STATE_SMALL; 503 } 504 505 public void animateOpen() { 506 if (!(getParent() instanceof DragLayer)) return; 507 508 mContent.completePendingPageChanges(); 509 if (!mDragInProgress) { 510 // Open on the first page. 511 mContent.snapToPageImmediately(0); 512 } 513 514 // This is set to true in close(), but isn't reset to false until onDropCompleted(). This 515 // leads to an consistent state if you drag out of the folder and drag back in without 516 // dropping. One resulting issue is that replaceFolderWithFinalItem() can be called twice. 517 mDeleteFolderOnDropCompleted = false; 518 519 Animator openFolderAnim = null; 520 final Runnable onCompleteRunnable; 521 if (!Utilities.ATLEAST_LOLLIPOP) { 522 positionAndSizeAsIcon(); 523 centerAboutIcon(); 524 525 final ObjectAnimator oa = LauncherAnimUtils.ofViewAlphaAndScale(this, 1, 1, 1); 526 oa.setDuration(mExpandDuration); 527 openFolderAnim = oa; 528 529 setLayerType(LAYER_TYPE_HARDWARE, null); 530 onCompleteRunnable = new Runnable() { 531 @Override 532 public void run() { 533 setLayerType(LAYER_TYPE_NONE, null); 534 } 535 }; 536 } else { 537 prepareReveal(); 538 centerAboutIcon(); 539 540 AnimatorSet anim = LauncherAnimUtils.createAnimatorSet(); 541 int width = getPaddingLeft() + getPaddingRight() + mContent.getDesiredWidth(); 542 int height = getFolderHeight(); 543 544 float transX = - 0.075f * (width / 2 - getPivotX()); 545 float transY = - 0.075f * (height / 2 - getPivotY()); 546 setTranslationX(transX); 547 setTranslationY(transY); 548 PropertyValuesHolder tx = PropertyValuesHolder.ofFloat(TRANSLATION_X, transX, 0); 549 PropertyValuesHolder ty = PropertyValuesHolder.ofFloat(TRANSLATION_Y, transY, 0); 550 551 Animator drift = ObjectAnimator.ofPropertyValuesHolder(this, tx, ty); 552 drift.setDuration(mMaterialExpandDuration); 553 drift.setStartDelay(mMaterialExpandStagger); 554 drift.setInterpolator(new LogDecelerateInterpolator(100, 0)); 555 556 int rx = (int) Math.max(Math.max(width - getPivotX(), 0), getPivotX()); 557 int ry = (int) Math.max(Math.max(height - getPivotY(), 0), getPivotY()); 558 float radius = (float) Math.hypot(rx, ry); 559 560 Animator reveal = UiThreadCircularReveal.createCircularReveal(this, (int) getPivotX(), 561 (int) getPivotY(), 0, radius); 562 reveal.setDuration(mMaterialExpandDuration); 563 reveal.setInterpolator(new LogDecelerateInterpolator(100, 0)); 564 565 mContentWrapper.setAlpha(0f); 566 Animator iconsAlpha = ObjectAnimator.ofFloat(mContentWrapper, "alpha", 0f, 1f); 567 iconsAlpha.setDuration(mMaterialExpandDuration); 568 iconsAlpha.setStartDelay(mMaterialExpandStagger); 569 iconsAlpha.setInterpolator(new AccelerateInterpolator(1.5f)); 570 571 mFooter.setAlpha(0f); 572 Animator textAlpha = ObjectAnimator.ofFloat(mFooter, "alpha", 0f, 1f); 573 textAlpha.setDuration(mMaterialExpandDuration); 574 textAlpha.setStartDelay(mMaterialExpandStagger); 575 textAlpha.setInterpolator(new AccelerateInterpolator(1.5f)); 576 577 anim.play(drift); 578 anim.play(iconsAlpha); 579 anim.play(textAlpha); 580 anim.play(reveal); 581 582 openFolderAnim = anim; 583 584 mContentWrapper.setLayerType(LAYER_TYPE_HARDWARE, null); 585 mFooter.setLayerType(LAYER_TYPE_HARDWARE, null); 586 onCompleteRunnable = new Runnable() { 587 @Override 588 public void run() { 589 mContentWrapper.setLayerType(LAYER_TYPE_NONE, null); 590 mFooter.setLayerType(LAYER_TYPE_NONE, null); 591 } 592 }; 593 } 594 openFolderAnim.addListener(new AnimatorListenerAdapter() { 595 @Override 596 public void onAnimationStart(Animator animation) { 597 sendCustomAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED, 598 mContent.getAccessibilityDescription()); 599 mState = STATE_ANIMATING; 600 } 601 @Override 602 public void onAnimationEnd(Animator animation) { 603 mState = STATE_OPEN; 604 605 onCompleteRunnable.run(); 606 mContent.setFocusOnFirstChild(); 607 } 608 }); 609 610 // Footer animation 611 if (mContent.getPageCount() > 1 && !mInfo.hasOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION)) { 612 int footerWidth = mContent.getDesiredWidth() 613 - mFooter.getPaddingLeft() - mFooter.getPaddingRight(); 614 615 float textWidth = mFolderName.getPaint().measureText(mFolderName.getText().toString()); 616 float translation = (footerWidth - textWidth) / 2; 617 mFolderName.setTranslationX(mContent.mIsRtl ? -translation : translation); 618 mPageIndicator.prepareEntryAnimation(); 619 620 // Do not update the flag if we are in drag mode. The flag will be updated, when we 621 // actually drop the icon. 622 final boolean updateAnimationFlag = !mDragInProgress; 623 openFolderAnim.addListener(new AnimatorListenerAdapter() { 624 625 @SuppressLint("InlinedApi") 626 @Override 627 public void onAnimationEnd(Animator animation) { 628 mFolderName.animate().setDuration(FOLDER_NAME_ANIMATION_DURATION) 629 .translationX(0) 630 .setInterpolator(Utilities.ATLEAST_LOLLIPOP ? 631 AnimationUtils.loadInterpolator(mLauncher, 632 android.R.interpolator.fast_out_slow_in) 633 : new LogDecelerateInterpolator(100, 0)); 634 mPageIndicator.playEntryAnimation(); 635 636 if (updateAnimationFlag) { 637 mInfo.setOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION, true, mLauncher); 638 } 639 } 640 }); 641 } else { 642 mFolderName.setTranslationX(0); 643 } 644 645 mPageIndicator.stopAllAnimations(); 646 openFolderAnim.start(); 647 648 // Make sure the folder picks up the last drag move even if the finger doesn't move. 649 if (mDragController.isDragging()) { 650 mDragController.forceTouchMove(); 651 } 652 653 mContent.verifyVisibleHighResIcons(mContent.getNextPage()); 654 } 655 656 public void beginExternalDrag(ShortcutInfo item) { 657 mCurrentDragInfo = item; 658 mEmptyCellRank = mContent.allocateRankForNewItem(item); 659 mIsExternalDrag = true; 660 mDragInProgress = true; 661 662 // Since this folder opened by another controller, it might not get onDrop or 663 // onDropComplete. Perform cleanup once drag-n-drop ends. 664 mDragController.addDragListener(this); 665 } 666 667 @Override 668 public void onDragStart(DragSource source, ItemInfo info, int dragAction) { } 669 670 @Override 671 public void onDragEnd() { 672 if (mIsExternalDrag && mDragInProgress) { 673 completeDragExit(); 674 } 675 mDragController.removeDragListener(this); 676 } 677 678 @Thunk void sendCustomAccessibilityEvent(int type, String text) { 679 AccessibilityManager accessibilityManager = (AccessibilityManager) 680 getContext().getSystemService(Context.ACCESSIBILITY_SERVICE); 681 if (accessibilityManager.isEnabled()) { 682 AccessibilityEvent event = AccessibilityEvent.obtain(type); 683 onInitializeAccessibilityEvent(event); 684 event.getText().add(text); 685 accessibilityManager.sendAccessibilityEvent(event); 686 } 687 } 688 689 public void animateClosed() { 690 if (!(getParent() instanceof DragLayer)) return; 691 final ObjectAnimator oa = LauncherAnimUtils.ofViewAlphaAndScale(this, 0, 0.9f, 0.9f); 692 oa.addListener(new AnimatorListenerAdapter() { 693 @Override 694 public void onAnimationEnd(Animator animation) { 695 setLayerType(LAYER_TYPE_NONE, null); 696 close(true); 697 } 698 @Override 699 public void onAnimationStart(Animator animation) { 700 sendCustomAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED, 701 getContext().getString(R.string.folder_closed)); 702 mState = STATE_ANIMATING; 703 } 704 }); 705 oa.setDuration(mExpandDuration); 706 setLayerType(LAYER_TYPE_HARDWARE, null); 707 oa.start(); 708 } 709 710 public void close(boolean wasAnimated) { 711 // TODO: Clear all active animations. 712 DragLayer parent = (DragLayer) getParent(); 713 if (parent != null) { 714 parent.removeView(this); 715 } 716 mDragController.removeDropTarget(this); 717 clearFocus(); 718 if (wasAnimated) { 719 mFolderIcon.requestFocus(); 720 } 721 722 if (mRearrangeOnClose) { 723 rearrangeChildren(); 724 mRearrangeOnClose = false; 725 } 726 if (getItemCount() <= 1) { 727 if (!mDragInProgress && !mSuppressFolderDeletion) { 728 replaceFolderWithFinalItem(); 729 } else if (mDragInProgress) { 730 mDeleteFolderOnDropCompleted = true; 731 } 732 } 733 mSuppressFolderDeletion = false; 734 clearDragInfo(); 735 mState = STATE_SMALL; 736 } 737 738 public boolean acceptDrop(DragObject d) { 739 final ItemInfo item = d.dragInfo; 740 final int itemType = item.itemType; 741 return ((itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || 742 itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT) && 743 !isFull()); 744 } 745 746 public void onDragEnter(DragObject d) { 747 mPrevTargetRank = -1; 748 mOnExitAlarm.cancelAlarm(); 749 // Get the area offset such that the folder only closes if half the drag icon width 750 // is outside the folder area 751 mScrollAreaOffset = d.dragView.getDragRegionWidth() / 2 - d.xOffset; 752 } 753 754 OnAlarmListener mReorderAlarmListener = new OnAlarmListener() { 755 public void onAlarm(Alarm alarm) { 756 mContent.realTimeReorder(mEmptyCellRank, mTargetRank); 757 mEmptyCellRank = mTargetRank; 758 } 759 }; 760 761 @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1) 762 public boolean isLayoutRtl() { 763 return (getLayoutDirection() == LAYOUT_DIRECTION_RTL); 764 } 765 766 @Override 767 public void onDragOver(DragObject d) { 768 onDragOver(d, REORDER_DELAY); 769 } 770 771 private int getTargetRank(DragObject d, float[] recycle) { 772 recycle = d.getVisualCenter(recycle); 773 return mContent.findNearestArea( 774 (int) recycle[0] - getPaddingLeft(), (int) recycle[1] - getPaddingTop()); 775 } 776 777 @Thunk void onDragOver(DragObject d, int reorderDelay) { 778 if (mScrollPauseAlarm.alarmPending()) { 779 return; 780 } 781 final float[] r = new float[2]; 782 mTargetRank = getTargetRank(d, r); 783 784 if (mTargetRank != mPrevTargetRank) { 785 mReorderAlarm.cancelAlarm(); 786 mReorderAlarm.setOnAlarmListener(mReorderAlarmListener); 787 mReorderAlarm.setAlarm(REORDER_DELAY); 788 mPrevTargetRank = mTargetRank; 789 790 if (d.stateAnnouncer != null) { 791 d.stateAnnouncer.announce(getContext().getString(R.string.move_to_position, 792 mTargetRank + 1)); 793 } 794 } 795 796 float x = r[0]; 797 int currentPage = mContent.getNextPage(); 798 799 float cellOverlap = mContent.getCurrentCellLayout().getCellWidth() 800 * ICON_OVERSCROLL_WIDTH_FACTOR; 801 boolean isOutsideLeftEdge = x < cellOverlap; 802 boolean isOutsideRightEdge = x > (getWidth() - cellOverlap); 803 804 if (currentPage > 0 && (mContent.mIsRtl ? isOutsideRightEdge : isOutsideLeftEdge)) { 805 showScrollHint(DragController.SCROLL_LEFT, d); 806 } else if (currentPage < (mContent.getPageCount() - 1) 807 && (mContent.mIsRtl ? isOutsideLeftEdge : isOutsideRightEdge)) { 808 showScrollHint(DragController.SCROLL_RIGHT, d); 809 } else { 810 mOnScrollHintAlarm.cancelAlarm(); 811 if (mScrollHintDir != DragController.SCROLL_NONE) { 812 mContent.clearScrollHint(); 813 mScrollHintDir = DragController.SCROLL_NONE; 814 } 815 } 816 } 817 818 private void showScrollHint(int direction, DragObject d) { 819 // Show scroll hint on the right 820 if (mScrollHintDir != direction) { 821 mContent.showScrollHint(direction); 822 mScrollHintDir = direction; 823 } 824 825 // Set alarm for when the hint is complete 826 if (!mOnScrollHintAlarm.alarmPending() || mCurrentScrollDir != direction) { 827 mCurrentScrollDir = direction; 828 mOnScrollHintAlarm.cancelAlarm(); 829 mOnScrollHintAlarm.setOnAlarmListener(new OnScrollHintListener(d)); 830 mOnScrollHintAlarm.setAlarm(SCROLL_HINT_DURATION); 831 832 mReorderAlarm.cancelAlarm(); 833 mTargetRank = mEmptyCellRank; 834 } 835 } 836 837 OnAlarmListener mOnExitAlarmListener = new OnAlarmListener() { 838 public void onAlarm(Alarm alarm) { 839 completeDragExit(); 840 } 841 }; 842 843 public void completeDragExit() { 844 if (mInfo.opened) { 845 mLauncher.closeFolder(); 846 mRearrangeOnClose = true; 847 } else if (mState == STATE_ANIMATING) { 848 mRearrangeOnClose = true; 849 } else { 850 rearrangeChildren(); 851 clearDragInfo(); 852 } 853 } 854 855 private void clearDragInfo() { 856 mCurrentDragInfo = null; 857 mCurrentDragView = null; 858 mSuppressOnAdd = false; 859 mIsExternalDrag = false; 860 } 861 862 public void onDragExit(DragObject d) { 863 // We only close the folder if this is a true drag exit, ie. not because 864 // a drop has occurred above the folder. 865 if (!d.dragComplete) { 866 mOnExitAlarm.setOnAlarmListener(mOnExitAlarmListener); 867 mOnExitAlarm.setAlarm(ON_EXIT_CLOSE_DELAY); 868 } 869 mReorderAlarm.cancelAlarm(); 870 871 mOnScrollHintAlarm.cancelAlarm(); 872 mScrollPauseAlarm.cancelAlarm(); 873 if (mScrollHintDir != DragController.SCROLL_NONE) { 874 mContent.clearScrollHint(); 875 mScrollHintDir = DragController.SCROLL_NONE; 876 } 877 } 878 879 /** 880 * When performing an accessibility drop, onDrop is sent immediately after onDragEnter. So we 881 * need to complete all transient states based on timers. 882 */ 883 @Override 884 public void prepareAccessibilityDrop() { 885 if (mReorderAlarm.alarmPending()) { 886 mReorderAlarm.cancelAlarm(); 887 mReorderAlarmListener.onAlarm(mReorderAlarm); 888 } 889 } 890 891 public void onDropCompleted(final View target, final DragObject d, 892 final boolean isFlingToDelete, final boolean success) { 893 if (mDeferDropAfterUninstall) { 894 Log.d(TAG, "Deferred handling drop because waiting for uninstall."); 895 mDeferredAction = new Runnable() { 896 public void run() { 897 onDropCompleted(target, d, isFlingToDelete, success); 898 mDeferredAction = null; 899 } 900 }; 901 return; 902 } 903 904 boolean beingCalledAfterUninstall = mDeferredAction != null; 905 boolean successfulDrop = 906 success && (!beingCalledAfterUninstall || mUninstallSuccessful); 907 908 if (successfulDrop) { 909 if (mDeleteFolderOnDropCompleted && !mItemAddedBackToSelfViaIcon && target != this) { 910 replaceFolderWithFinalItem(); 911 } 912 } else { 913 // The drag failed, we need to return the item to the folder 914 ShortcutInfo info = (ShortcutInfo) d.dragInfo; 915 View icon = (mCurrentDragView != null && mCurrentDragView.getTag() == info) 916 ? mCurrentDragView : mContent.createNewView(info); 917 ArrayList<View> views = getItemsInReadingOrder(); 918 views.add(info.rank, icon); 919 mContent.arrangeChildren(views, views.size()); 920 mItemsInvalidated = true; 921 922 mSuppressOnAdd = true; 923 mFolderIcon.onDrop(d); 924 mSuppressOnAdd = false; 925 } 926 927 if (target != this) { 928 if (mOnExitAlarm.alarmPending()) { 929 mOnExitAlarm.cancelAlarm(); 930 if (!successfulDrop) { 931 mSuppressFolderDeletion = true; 932 } 933 mScrollPauseAlarm.cancelAlarm(); 934 completeDragExit(); 935 } 936 } 937 938 mDeleteFolderOnDropCompleted = false; 939 mDragInProgress = false; 940 mItemAddedBackToSelfViaIcon = false; 941 mCurrentDragInfo = null; 942 mCurrentDragView = null; 943 mSuppressOnAdd = false; 944 945 // Reordering may have occured, and we need to save the new item locations. We do this once 946 // at the end to prevent unnecessary database operations. 947 updateItemLocationsInDatabaseBatch(); 948 949 // Use the item count to check for multi-page as the folder UI may not have 950 // been refreshed yet. 951 if (getItemCount() <= mContent.itemsPerPage()) { 952 // Show the animation, next time something is added to the folder. 953 mInfo.setOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION, false, mLauncher); 954 } 955 956 if (!isFlingToDelete) { 957 // Fling to delete already exits spring loaded mode after the animation finishes. 958 mLauncher.exitSpringLoadedDragModeDelayed(successfulDrop, 959 Launcher.EXIT_SPRINGLOADED_MODE_SHORT_TIMEOUT, null); 960 } 961 } 962 963 @Override 964 public void deferCompleteDropAfterUninstallActivity() { 965 mDeferDropAfterUninstall = true; 966 } 967 968 @Override 969 public void onDragObjectRemoved(boolean success) { 970 mDeferDropAfterUninstall = false; 971 mUninstallSuccessful = success; 972 if (mDeferredAction != null) { 973 mDeferredAction.run(); 974 } 975 } 976 977 @Override 978 public float getIntrinsicIconScaleFactor() { 979 return 1f; 980 } 981 982 @Override 983 public boolean supportsFlingToDelete() { 984 return true; 985 } 986 987 @Override 988 public boolean supportsAppInfoDropTarget() { 989 return !FeatureFlags.LAUNCHER3_LEGACY_WORKSPACE_DND; 990 } 991 992 @Override 993 public boolean supportsDeleteDropTarget() { 994 return true; 995 } 996 997 @Override 998 public void onFlingToDelete(DragObject d, PointF vec) { 999 // Do nothing 1000 } 1001 1002 @Override 1003 public void onFlingToDeleteCompleted() { 1004 // Do nothing 1005 } 1006 1007 private void updateItemLocationsInDatabaseBatch() { 1008 ArrayList<View> list = getItemsInReadingOrder(); 1009 ArrayList<ItemInfo> items = new ArrayList<ItemInfo>(); 1010 for (int i = 0; i < list.size(); i++) { 1011 View v = list.get(i); 1012 ItemInfo info = (ItemInfo) v.getTag(); 1013 info.rank = i; 1014 items.add(info); 1015 } 1016 1017 LauncherModel.moveItemsInDatabase(mLauncher, items, mInfo.id, 0); 1018 } 1019 1020 public void notifyDrop() { 1021 if (mDragInProgress) { 1022 mItemAddedBackToSelfViaIcon = true; 1023 } 1024 } 1025 1026 public boolean isDropEnabled() { 1027 return true; 1028 } 1029 1030 public boolean isFull() { 1031 return mContent.isFull(); 1032 } 1033 1034 private void centerAboutIcon() { 1035 DragLayer.LayoutParams lp = (DragLayer.LayoutParams) getLayoutParams(); 1036 1037 DragLayer parent = (DragLayer) mLauncher.findViewById(R.id.drag_layer); 1038 int width = getPaddingLeft() + getPaddingRight() + mContent.getDesiredWidth(); 1039 int height = getFolderHeight(); 1040 1041 float scale = parent.getDescendantRectRelativeToSelf(mFolderIcon, sTempRect); 1042 1043 DeviceProfile grid = mLauncher.getDeviceProfile(); 1044 1045 int centerX = (int) (sTempRect.left + sTempRect.width() * scale / 2); 1046 int centerY = (int) (sTempRect.top + sTempRect.height() * scale / 2); 1047 int centeredLeft = centerX - width / 2; 1048 int centeredTop = centerY - height / 2; 1049 1050 // We need to bound the folder to the currently visible workspace area 1051 mLauncher.getWorkspace().getPageAreaRelativeToDragLayer(sTempRect); 1052 int left = Math.min(Math.max(sTempRect.left, centeredLeft), 1053 sTempRect.left + sTempRect.width() - width); 1054 int top = Math.min(Math.max(sTempRect.top, centeredTop), 1055 sTempRect.top + sTempRect.height() - height); 1056 1057 int distFromEdgeOfScreen = grid.getWorkspacePadding().left + getPaddingLeft(); 1058 1059 if (grid.isPhone && (grid.availableWidthPx - width) < 4 * distFromEdgeOfScreen) { 1060 // Center the folder if it is very close to being centered anyway, by virtue of 1061 // filling the majority of the viewport. ie. remove it from the uncanny valley 1062 // of centeredness. 1063 left = (grid.availableWidthPx - width) / 2; 1064 } else if (width >= sTempRect.width()) { 1065 // If the folder doesn't fit within the bounds, center it about the desired bounds 1066 left = sTempRect.left + (sTempRect.width() - width) / 2; 1067 } 1068 if (height >= sTempRect.height()) { 1069 top = sTempRect.top + (sTempRect.height() - height) / 2; 1070 } 1071 1072 int folderPivotX = width / 2 + (centeredLeft - left); 1073 int folderPivotY = height / 2 + (centeredTop - top); 1074 setPivotX(folderPivotX); 1075 setPivotY(folderPivotY); 1076 mFolderIconPivotX = (int) (mFolderIcon.getMeasuredWidth() * 1077 (1.0f * folderPivotX / width)); 1078 mFolderIconPivotY = (int) (mFolderIcon.getMeasuredHeight() * 1079 (1.0f * folderPivotY / height)); 1080 1081 lp.width = width; 1082 lp.height = height; 1083 lp.x = left; 1084 lp.y = top; 1085 } 1086 1087 public float getPivotXForIconAnimation() { 1088 return mFolderIconPivotX; 1089 } 1090 public float getPivotYForIconAnimation() { 1091 return mFolderIconPivotY; 1092 } 1093 1094 private int getContentAreaHeight() { 1095 DeviceProfile grid = mLauncher.getDeviceProfile(); 1096 Rect workspacePadding = grid.getWorkspacePadding(); 1097 int maxContentAreaHeight = grid.availableHeightPx - 1098 workspacePadding.top - workspacePadding.bottom - 1099 mFooterHeight; 1100 int height = Math.min(maxContentAreaHeight, 1101 mContent.getDesiredHeight()); 1102 return Math.max(height, MIN_CONTENT_DIMEN); 1103 } 1104 1105 private int getContentAreaWidth() { 1106 return Math.max(mContent.getDesiredWidth(), MIN_CONTENT_DIMEN); 1107 } 1108 1109 private int getFolderHeight() { 1110 return getFolderHeight(getContentAreaHeight()); 1111 } 1112 1113 private int getFolderHeight(int contentAreaHeight) { 1114 return getPaddingTop() + getPaddingBottom() + contentAreaHeight + mFooterHeight; 1115 } 1116 1117 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 1118 int contentWidth = getContentAreaWidth(); 1119 int contentHeight = getContentAreaHeight(); 1120 1121 int contentAreaWidthSpec = MeasureSpec.makeMeasureSpec(contentWidth, MeasureSpec.EXACTLY); 1122 int contentAreaHeightSpec = MeasureSpec.makeMeasureSpec(contentHeight, MeasureSpec.EXACTLY); 1123 1124 mContent.setFixedSize(contentWidth, contentHeight); 1125 mContentWrapper.measure(contentAreaWidthSpec, contentAreaHeightSpec); 1126 1127 if (mContent.getChildCount() > 0) { 1128 int cellIconGap = (mContent.getPageAt(0).getCellWidth() 1129 - mLauncher.getDeviceProfile().iconSizePx) / 2; 1130 mFooter.setPadding(mContent.getPaddingLeft() + cellIconGap, 1131 mFooter.getPaddingTop(), 1132 mContent.getPaddingRight() + cellIconGap, 1133 mFooter.getPaddingBottom()); 1134 } 1135 mFooter.measure(contentAreaWidthSpec, 1136 MeasureSpec.makeMeasureSpec(mFooterHeight, MeasureSpec.EXACTLY)); 1137 1138 int folderWidth = getPaddingLeft() + getPaddingRight() + contentWidth; 1139 int folderHeight = getFolderHeight(contentHeight); 1140 setMeasuredDimension(folderWidth, folderHeight); 1141 } 1142 1143 /** 1144 * Rearranges the children based on their rank. 1145 */ 1146 public void rearrangeChildren() { 1147 rearrangeChildren(-1); 1148 } 1149 1150 /** 1151 * Rearranges the children based on their rank. 1152 * @param itemCount if greater than the total children count, empty spaces are left at the end, 1153 * otherwise it is ignored. 1154 */ 1155 public void rearrangeChildren(int itemCount) { 1156 ArrayList<View> views = getItemsInReadingOrder(); 1157 mContent.arrangeChildren(views, Math.max(itemCount, views.size())); 1158 mItemsInvalidated = true; 1159 } 1160 1161 public int getItemCount() { 1162 return mContent.getItemCount(); 1163 } 1164 1165 @Thunk void replaceFolderWithFinalItem() { 1166 // Add the last remaining child to the workspace in place of the folder 1167 Runnable onCompleteRunnable = new Runnable() { 1168 @Override 1169 public void run() { 1170 int itemCount = mInfo.contents.size(); 1171 if (itemCount <= 1) { 1172 View newIcon = null; 1173 1174 if (itemCount == 1) { 1175 // Move the item from the folder to the workspace, in the position of the 1176 // folder 1177 CellLayout cellLayout = mLauncher.getCellLayout(mInfo.container, 1178 mInfo.screenId); 1179 ShortcutInfo finalItem = mInfo.contents.remove(0); 1180 newIcon = mLauncher.createShortcut(cellLayout, finalItem); 1181 LauncherModel.addOrMoveItemInDatabase(mLauncher, finalItem, mInfo.container, 1182 mInfo.screenId, mInfo.cellX, mInfo.cellY); 1183 } 1184 1185 // Remove the folder 1186 mLauncher.removeItem(mFolderIcon, mInfo, true /* deleteFromDb */); 1187 if (mFolderIcon instanceof DropTarget) { 1188 mDragController.removeDropTarget((DropTarget) mFolderIcon); 1189 } 1190 1191 if (newIcon != null) { 1192 // We add the child after removing the folder to prevent both from existing 1193 // at the same time in the CellLayout. We need to add the new item with 1194 // addInScreenFromBind() to ensure that hotseat items are placed correctly. 1195 mLauncher.getWorkspace().addInScreenFromBind(newIcon, mInfo.container, 1196 mInfo.screenId, mInfo.cellX, mInfo.cellY, mInfo.spanX, mInfo.spanY); 1197 1198 // Focus the newly created child 1199 newIcon.requestFocus(); 1200 } 1201 } 1202 } 1203 }; 1204 View finalChild = mContent.getLastItem(); 1205 if (finalChild != null) { 1206 mFolderIcon.performDestroyAnimation(finalChild, onCompleteRunnable); 1207 } else { 1208 onCompleteRunnable.run(); 1209 } 1210 mDestroyed = true; 1211 } 1212 1213 public boolean isDestroyed() { 1214 return mDestroyed; 1215 } 1216 1217 // This method keeps track of the first and last item in the folder for the purposes 1218 // of keyboard focus 1219 public void updateTextViewFocus() { 1220 final View firstChild = mContent.getFirstItem(); 1221 final View lastChild = mContent.getLastItem(); 1222 if (firstChild != null && lastChild != null) { 1223 mFolderName.setNextFocusDownId(lastChild.getId()); 1224 mFolderName.setNextFocusRightId(lastChild.getId()); 1225 mFolderName.setNextFocusLeftId(lastChild.getId()); 1226 mFolderName.setNextFocusUpId(lastChild.getId()); 1227 // Hitting TAB from the folder name wraps around to the first item on the current 1228 // folder page, and hitting SHIFT+TAB from that item wraps back to the folder name. 1229 mFolderName.setNextFocusForwardId(firstChild.getId()); 1230 // When clicking off the folder when editing the name, this Folder gains focus. When 1231 // pressing an arrow key from that state, give the focus to the first item. 1232 this.setNextFocusDownId(firstChild.getId()); 1233 this.setNextFocusRightId(firstChild.getId()); 1234 this.setNextFocusLeftId(firstChild.getId()); 1235 this.setNextFocusUpId(firstChild.getId()); 1236 // When pressing shift+tab in the above state, give the focus to the last item. 1237 setOnKeyListener(new OnKeyListener() { 1238 @Override 1239 public boolean onKey(View v, int keyCode, KeyEvent event) { 1240 boolean isShiftPlusTab = keyCode == KeyEvent.KEYCODE_TAB && 1241 event.hasModifiers(KeyEvent.META_SHIFT_ON); 1242 if (isShiftPlusTab && Folder.this.isFocused()) { 1243 return lastChild.requestFocus(); 1244 } 1245 return false; 1246 } 1247 }); 1248 } 1249 } 1250 1251 public void onDrop(DragObject d) { 1252 Runnable cleanUpRunnable = null; 1253 1254 // If we are coming from All Apps space, we defer removing the extra empty screen 1255 // until the folder closes 1256 if (d.dragSource != mLauncher.getWorkspace() && !(d.dragSource instanceof Folder)) { 1257 cleanUpRunnable = new Runnable() { 1258 @Override 1259 public void run() { 1260 mLauncher.exitSpringLoadedDragModeDelayed(true, 1261 Launcher.EXIT_SPRINGLOADED_MODE_SHORT_TIMEOUT, 1262 null); 1263 } 1264 }; 1265 } 1266 1267 // If the icon was dropped while the page was being scrolled, we need to compute 1268 // the target location again such that the icon is placed of the final page. 1269 if (!mContent.rankOnCurrentPage(mEmptyCellRank)) { 1270 // Reorder again. 1271 mTargetRank = getTargetRank(d, null); 1272 1273 // Rearrange items immediately. 1274 mReorderAlarmListener.onAlarm(mReorderAlarm); 1275 1276 mOnScrollHintAlarm.cancelAlarm(); 1277 mScrollPauseAlarm.cancelAlarm(); 1278 } 1279 mContent.completePendingPageChanges(); 1280 1281 View currentDragView; 1282 ShortcutInfo si = mCurrentDragInfo; 1283 if (mIsExternalDrag) { 1284 currentDragView = mContent.createAndAddViewForRank(si, mEmptyCellRank); 1285 // Actually move the item in the database if it was an external drag. Call this 1286 // before creating the view, so that ShortcutInfo is updated appropriately. 1287 LauncherModel.addOrMoveItemInDatabase( 1288 mLauncher, si, mInfo.id, 0, si.cellX, si.cellY); 1289 1290 // We only need to update the locations if it doesn't get handled in #onDropCompleted. 1291 if (d.dragSource != this) { 1292 updateItemLocationsInDatabaseBatch(); 1293 } 1294 mIsExternalDrag = false; 1295 } else { 1296 currentDragView = mCurrentDragView; 1297 mContent.addViewForRank(currentDragView, si, mEmptyCellRank); 1298 } 1299 1300 if (d.dragView.hasDrawn()) { 1301 1302 // Temporarily reset the scale such that the animation target gets calculated correctly. 1303 float scaleX = getScaleX(); 1304 float scaleY = getScaleY(); 1305 setScaleX(1.0f); 1306 setScaleY(1.0f); 1307 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, currentDragView, 1308 cleanUpRunnable, null); 1309 setScaleX(scaleX); 1310 setScaleY(scaleY); 1311 } else { 1312 d.deferDragViewCleanupPostAnimation = false; 1313 currentDragView.setVisibility(VISIBLE); 1314 } 1315 mItemsInvalidated = true; 1316 rearrangeChildren(); 1317 1318 // Temporarily suppress the listener, as we did all the work already here. 1319 mSuppressOnAdd = true; 1320 mInfo.add(si, false); 1321 mSuppressOnAdd = false; 1322 // Clear the drag info, as it is no longer being dragged. 1323 mCurrentDragInfo = null; 1324 mDragInProgress = false; 1325 1326 if (mContent.getPageCount() > 1) { 1327 // The animation has already been shown while opening the folder. 1328 mInfo.setOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION, true, mLauncher); 1329 } 1330 } 1331 1332 // This is used so the item doesn't immediately appear in the folder when added. In one case 1333 // we need to create the illusion that the item isn't added back to the folder yet, to 1334 // to correspond to the animation of the icon back into the folder. This is 1335 public void hideItem(ShortcutInfo info) { 1336 View v = getViewForInfo(info); 1337 v.setVisibility(INVISIBLE); 1338 } 1339 public void showItem(ShortcutInfo info) { 1340 View v = getViewForInfo(info); 1341 v.setVisibility(VISIBLE); 1342 } 1343 1344 @Override 1345 public void onAdd(ShortcutInfo item) { 1346 // If the item was dropped onto this open folder, we have done the work associated 1347 // with adding the item to the folder, as indicated by mSuppressOnAdd being set 1348 if (mSuppressOnAdd) return; 1349 mContent.createAndAddViewForRank(item, mContent.allocateRankForNewItem(item)); 1350 mItemsInvalidated = true; 1351 LauncherModel.addOrMoveItemInDatabase( 1352 mLauncher, item, mInfo.id, 0, item.cellX, item.cellY); 1353 } 1354 1355 public void onRemove(ShortcutInfo item) { 1356 mItemsInvalidated = true; 1357 // If this item is being dragged from this open folder, we have already handled 1358 // the work associated with removing the item, so we don't have to do anything here. 1359 if (item == mCurrentDragInfo) return; 1360 View v = getViewForInfo(item); 1361 mContent.removeItem(v); 1362 if (mState == STATE_ANIMATING) { 1363 mRearrangeOnClose = true; 1364 } else { 1365 rearrangeChildren(); 1366 } 1367 if (getItemCount() <= 1) { 1368 if (mInfo.opened) { 1369 mLauncher.closeFolder(this, true); 1370 } else { 1371 replaceFolderWithFinalItem(); 1372 } 1373 } 1374 } 1375 1376 private View getViewForInfo(final ShortcutInfo item) { 1377 return mContent.iterateOverItems(new ItemOperator() { 1378 1379 @Override 1380 public boolean evaluate(ItemInfo info, View view) { 1381 return info == item; 1382 } 1383 }); 1384 } 1385 1386 @Override 1387 public void onItemsChanged(boolean animate) { 1388 updateTextViewFocus(); 1389 } 1390 1391 public void onTitleChanged(CharSequence title) { 1392 } 1393 1394 public ArrayList<View> getItemsInReadingOrder() { 1395 if (mItemsInvalidated) { 1396 mItemsInReadingOrder.clear(); 1397 mContent.iterateOverItems(new ItemOperator() { 1398 1399 @Override 1400 public boolean evaluate(ItemInfo info, View view) { 1401 mItemsInReadingOrder.add(view); 1402 return false; 1403 } 1404 }); 1405 mItemsInvalidated = false; 1406 } 1407 return mItemsInReadingOrder; 1408 } 1409 1410 public void onFocusChange(View v, boolean hasFocus) { 1411 if (v == mFolderName) { 1412 if (hasFocus) { 1413 startEditingFolderName(); 1414 } else { 1415 dismissEditingName(); 1416 } 1417 } 1418 } 1419 1420 @Override 1421 public void getHitRectRelativeToDragLayer(Rect outRect) { 1422 getHitRect(outRect); 1423 outRect.left -= mScrollAreaOffset; 1424 outRect.right += mScrollAreaOffset; 1425 } 1426 1427 @Override 1428 public void fillInLaunchSourceData(View v, ItemInfo info, Target target, Target targetParent) { 1429 target.itemType = LauncherLogProto.APP_ICON; 1430 target.gridX = info.cellX; 1431 target.gridY = info.cellY; 1432 target.pageIndex = mContent.getCurrentPage(); 1433 targetParent.containerType = LauncherLogProto.FOLDER; 1434 } 1435 1436 private class OnScrollHintListener implements OnAlarmListener { 1437 1438 private final DragObject mDragObject; 1439 1440 OnScrollHintListener(DragObject object) { 1441 mDragObject = object; 1442 } 1443 1444 /** 1445 * Scroll hint has been shown long enough. Now scroll to appropriate page. 1446 */ 1447 @Override 1448 public void onAlarm(Alarm alarm) { 1449 if (mCurrentScrollDir == DragController.SCROLL_LEFT) { 1450 mContent.scrollLeft(); 1451 mScrollHintDir = DragController.SCROLL_NONE; 1452 } else if (mCurrentScrollDir == DragController.SCROLL_RIGHT) { 1453 mContent.scrollRight(); 1454 mScrollHintDir = DragController.SCROLL_NONE; 1455 } else { 1456 // This should not happen 1457 return; 1458 } 1459 mCurrentScrollDir = DragController.SCROLL_NONE; 1460 1461 // Pause drag event until the scrolling is finished 1462 mScrollPauseAlarm.setOnAlarmListener(new OnScrollFinishedListener(mDragObject)); 1463 mScrollPauseAlarm.setAlarm(DragController.RESCROLL_DELAY); 1464 } 1465 } 1466 1467 private class OnScrollFinishedListener implements OnAlarmListener { 1468 1469 private final DragObject mDragObject; 1470 1471 OnScrollFinishedListener(DragObject object) { 1472 mDragObject = object; 1473 } 1474 1475 /** 1476 * Page scroll is complete. 1477 */ 1478 @Override 1479 public void onAlarm(Alarm alarm) { 1480 // Reorder immediately on page change. 1481 onDragOver(mDragObject, 1); 1482 } 1483 } 1484 1485 // Compares item position based on rank and position giving priority to the rank. 1486 public static final Comparator<ItemInfo> ITEM_POS_COMPARATOR = new Comparator<ItemInfo>() { 1487 1488 @Override 1489 public int compare(ItemInfo lhs, ItemInfo rhs) { 1490 if (lhs.rank != rhs.rank) { 1491 return lhs.rank - rhs.rank; 1492 } else if (lhs.cellY != rhs.cellY) { 1493 return lhs.cellY - rhs.cellY; 1494 } else { 1495 return lhs.cellX - rhs.cellX; 1496 } 1497 } 1498 }; 1499} 1500