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 17 package com.android.launcher3; 18 19 import android.animation.Animator; 20 import android.animation.AnimatorListenerAdapter; 21 import android.animation.AnimatorSet; 22 import android.animation.ObjectAnimator; 23 import android.animation.PropertyValuesHolder; 24 import android.annotation.SuppressLint; 25 import android.annotation.TargetApi; 26 import android.content.Context; 27 import android.content.res.Resources; 28 import android.graphics.Point; 29 import android.graphics.PointF; 30 import android.graphics.Rect; 31 import android.os.Build; 32 import android.os.Bundle; 33 import android.text.InputType; 34 import android.text.Selection; 35 import android.text.Spannable; 36 import android.util.AttributeSet; 37 import android.util.Log; 38 import android.view.ActionMode; 39 import android.view.KeyEvent; 40 import android.view.Menu; 41 import android.view.MenuItem; 42 import android.view.MotionEvent; 43 import android.view.View; 44 import android.view.ViewGroup; 45 import android.view.accessibility.AccessibilityEvent; 46 import android.view.accessibility.AccessibilityManager; 47 import android.view.animation.AccelerateInterpolator; 48 import android.view.animation.AnimationUtils; 49 import android.view.inputmethod.EditorInfo; 50 import android.view.inputmethod.InputMethodManager; 51 import android.widget.LinearLayout; 52 import android.widget.TextView; 53 54 import com.android.launcher3.CellLayout.CellInfo; 55 import com.android.launcher3.DragController.DragListener; 56 import com.android.launcher3.FolderInfo.FolderListener; 57 import com.android.launcher3.UninstallDropTarget.UninstallSource; 58 import com.android.launcher3.Workspace.ItemOperator; 59 import com.android.launcher3.accessibility.LauncherAccessibilityDelegate.AccessibilityDragSource; 60 import com.android.launcher3.config.FeatureFlags; 61 import com.android.launcher3.util.Thunk; 62 import com.android.launcher3.util.UiThreadCircularReveal; 63 64 import java.util.ArrayList; 65 import java.util.Collections; 66 import java.util.Comparator; 67 68 /** 69 * Represents a set of icons chosen by the user or generated by the system. 70 */ 71 public class Folder extends LinearLayout implements DragSource, View.OnClickListener, 72 View.OnLongClickListener, DropTarget, FolderListener, TextView.OnEditorActionListener, 73 View.OnFocusChangeListener, DragListener, UninstallSource, AccessibilityDragSource, 74 Stats.LaunchSourceProvider { 75 private static final String TAG = "Launcher.Folder"; 76 77 /** 78 * We avoid measuring {@link #mContentWrapper} with a 0 width or height, as this 79 * results in CellLayout being measured as UNSPECIFIED, which it does not support. 80 */ 81 private static final int MIN_CONTENT_DIMEN = 5; 82 83 static final int STATE_NONE = -1; 84 static final int STATE_SMALL = 0; 85 static final int STATE_ANIMATING = 1; 86 static final int STATE_OPEN = 2; 87 88 /** 89 * Time for which the scroll hint is shown before automatically changing page. 90 */ 91 public static final int SCROLL_HINT_DURATION = DragController.SCROLL_DELAY; 92 93 /** 94 * Fraction of icon width which behave as scroll region. 95 */ 96 private static final float ICON_OVERSCROLL_WIDTH_FACTOR = 0.45f; 97 98 private static final int FOLDER_NAME_ANIMATION_DURATION = 633; 99 100 private static final int REORDER_DELAY = 250; 101 private static final int ON_EXIT_CLOSE_DELAY = 400; 102 private static final Rect sTempRect = new Rect(); 103 104 private static String sDefaultFolderName; 105 private static String sHintText; 106 107 private final Alarm mReorderAlarm = new Alarm(); 108 private final Alarm mOnExitAlarm = new Alarm(); 109 private final Alarm mOnScrollHintAlarm = new Alarm(); 110 @Thunk final Alarm mScrollPauseAlarm = new Alarm(); 111 112 @Thunk final ArrayList<View> mItemsInReadingOrder = new ArrayList<View>(); 113 114 private final int mExpandDuration; 115 private final int mMaterialExpandDuration; 116 private final int mMaterialExpandStagger; 117 118 private final InputMethodManager mInputMethodManager; 119 120 protected final Launcher mLauncher; 121 protected DragController mDragController; 122 protected FolderInfo mInfo; 123 124 @Thunk FolderIcon mFolderIcon; 125 126 @Thunk FolderPagedView mContent; 127 @Thunk View mContentWrapper; 128 ExtendedEditText mFolderName; 129 130 private View mFooter; 131 private int mFooterHeight; 132 133 // Cell ranks used for drag and drop 134 @Thunk int mTargetRank, mPrevTargetRank, mEmptyCellRank; 135 136 @Thunk int mState = STATE_NONE; 137 private boolean mRearrangeOnClose = false; 138 boolean mItemsInvalidated = false; 139 private ShortcutInfo mCurrentDragInfo; 140 private View mCurrentDragView; 141 private boolean mIsExternalDrag; 142 boolean mSuppressOnAdd = false; 143 private boolean mDragInProgress = false; 144 private boolean mDeleteFolderOnDropCompleted = false; 145 private boolean mSuppressFolderDeletion = false; 146 private boolean mItemAddedBackToSelfViaIcon = false; 147 @Thunk float mFolderIconPivotX; 148 @Thunk float mFolderIconPivotY; 149 private boolean mIsEditingName = false; 150 151 private boolean mDestroyed; 152 153 @Thunk Runnable mDeferredAction; 154 private boolean mDeferDropAfterUninstall; 155 private boolean mUninstallSuccessful; 156 157 // Folder scrolling 158 private int mScrollAreaOffset; 159 160 @Thunk int mScrollHintDir = DragController.SCROLL_NONE; 161 @Thunk int mCurrentScrollDir = DragController.SCROLL_NONE; 162 163 /** 164 * Used to inflate the Workspace from XML. 165 * 166 * @param context The application's context. 167 * @param attrs The attributes set containing the Workspace's customization values. 168 */ 169 public Folder(Context context, AttributeSet attrs) { 170 super(context, attrs); 171 setAlwaysDrawnWithCacheEnabled(false); 172 mInputMethodManager = (InputMethodManager) 173 getContext().getSystemService(Context.INPUT_METHOD_SERVICE); 174 175 Resources res = getResources(); 176 mExpandDuration = res.getInteger(R.integer.config_folderExpandDuration); 177 mMaterialExpandDuration = res.getInteger(R.integer.config_materialFolderExpandDuration); 178 mMaterialExpandStagger = res.getInteger(R.integer.config_materialFolderExpandStagger); 179 180 if (sDefaultFolderName == null) { 181 sDefaultFolderName = res.getString(R.string.folder_name); 182 } 183 if (sHintText == null) { 184 sHintText = res.getString(R.string.folder_hint_text); 185 } 186 mLauncher = (Launcher) context; 187 // We need this view to be focusable in touch mode so that when text editing of the folder 188 // name is complete, we have something to focus on, thus hiding the cursor and giving 189 // reliable behavior when clicking the text field (since it will always gain focus on click). 190 setFocusableInTouchMode(true); 191 } 192 193 @Override 194 protected void onFinishInflate() { 195 super.onFinishInflate(); 196 mContentWrapper = findViewById(R.id.folder_content_wrapper); 197 mContent = (FolderPagedView) findViewById(R.id.folder_content); 198 mContent.setFolder(this); 199 200 mFolderName = (ExtendedEditText) findViewById(R.id.folder_name); 201 mFolderName.setOnBackKeyListener(new ExtendedEditText.OnBackKeyListener() { 202 @Override 203 public boolean onBackKey() { 204 // Close the activity on back key press 205 doneEditingFolderName(true); 206 return false; 207 } 208 }); 209 mFolderName.setOnFocusChangeListener(this); 210 211 if (!Utilities.ATLEAST_MARSHMALLOW) { 212 // We disable action mode in older OSes where floating selection menu is not yet 213 // available. 214 mFolderName.setCustomSelectionActionModeCallback(new ActionMode.Callback() { 215 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 216 return false; 217 } 218 219 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 220 return false; 221 } 222 223 public void onDestroyActionMode(ActionMode mode) { 224 } 225 226 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 227 return false; 228 } 229 }); 230 } 231 mFolderName.setOnEditorActionListener(this); 232 mFolderName.setSelectAllOnFocus(true); 233 mFolderName.setInputType(mFolderName.getInputType() | 234 InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS | InputType.TYPE_TEXT_FLAG_CAP_WORDS); 235 236 mFooter = findViewById(R.id.folder_footer); 237 238 // We find out how tall footer wants to be (it is set to wrap_content), so that 239 // we can allocate the appropriate amount of space for it. 240 int measureSpec = MeasureSpec.UNSPECIFIED; 241 mFooter.measure(measureSpec, measureSpec); 242 mFooterHeight = mFooter.getMeasuredHeight(); 243 } 244 245 public void onClick(View v) { 246 Object tag = v.getTag(); 247 if (tag instanceof ShortcutInfo) { 248 mLauncher.onClick(v); 249 } 250 } 251 252 public boolean onLongClick(View v) { 253 // Return if global dragging is not enabled 254 if (!mLauncher.isDraggingEnabled()) return true; 255 return beginDrag(v, false); 256 } 257 258 private boolean beginDrag(View v, boolean accessible) { 259 Object tag = v.getTag(); 260 if (tag instanceof ShortcutInfo) { 261 ShortcutInfo item = (ShortcutInfo) tag; 262 if (!v.isInTouchMode()) { 263 return false; 264 } 265 266 mLauncher.getWorkspace().beginDragShared(v, new Point(), this, accessible); 267 268 mCurrentDragInfo = item; 269 mEmptyCellRank = item.rank; 270 mCurrentDragView = v; 271 272 mContent.removeItem(mCurrentDragView); 273 mInfo.remove(mCurrentDragInfo); 274 mDragInProgress = true; 275 mItemAddedBackToSelfViaIcon = false; 276 } 277 return true; 278 } 279 280 @Override 281 public void startDrag(CellInfo cellInfo, boolean accessible) { 282 beginDrag(cellInfo.cell, accessible); 283 } 284 285 @Override 286 public void enableAccessibleDrag(boolean enable) { 287 mLauncher.getSearchDropTargetBar().enableAccessibleDrag(enable); 288 for (int i = 0; i < mContent.getChildCount(); i++) { 289 mContent.getPageAt(i).enableAccessibleDrag(enable, CellLayout.FOLDER_ACCESSIBILITY_DRAG); 290 } 291 292 mFooter.setImportantForAccessibility(enable ? IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS : 293 IMPORTANT_FOR_ACCESSIBILITY_AUTO); 294 mLauncher.getWorkspace().setAddNewPageOnDrag(!enable); 295 } 296 297 public boolean isEditingName() { 298 return mIsEditingName; 299 } 300 301 public void startEditingFolderName() { 302 mFolderName.setHint(""); 303 mIsEditingName = true; 304 } 305 306 public void dismissEditingName() { 307 mInputMethodManager.hideSoftInputFromWindow(getWindowToken(), 0); 308 doneEditingFolderName(true); 309 } 310 311 public void doneEditingFolderName(boolean commit) { 312 mFolderName.setHint(sHintText); 313 // Convert to a string here to ensure that no other state associated with the text field 314 // gets saved. 315 String newTitle = mFolderName.getText().toString(); 316 mInfo.setTitle(newTitle); 317 LauncherModel.updateItemInDatabase(mLauncher, mInfo); 318 319 if (commit) { 320 sendCustomAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED, 321 String.format(getContext().getString(R.string.folder_renamed), newTitle)); 322 } 323 324 // This ensures that focus is gained every time the field is clicked, which selects all 325 // the text and brings up the soft keyboard if necessary. 326 mFolderName.clearFocus(); 327 328 Selection.setSelection((Spannable) mFolderName.getText(), 0, 0); 329 mIsEditingName = false; 330 } 331 332 public boolean onEditorAction(TextView v, int actionId, KeyEvent event) { 333 if (actionId == EditorInfo.IME_ACTION_DONE) { 334 dismissEditingName(); 335 return true; 336 } 337 return false; 338 } 339 340 public View getEditTextRegion() { 341 return mFolderName; 342 } 343 344 /** 345 * We need to handle touch events to prevent them from falling through to the workspace below. 346 */ 347 @SuppressLint("ClickableViewAccessibility") 348 @Override 349 public boolean onTouchEvent(MotionEvent ev) { 350 return true; 351 } 352 353 public void setDragController(DragController dragController) { 354 mDragController = dragController; 355 } 356 357 public void setFolderIcon(FolderIcon icon) { 358 mFolderIcon = icon; 359 } 360 361 @Override 362 public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) { 363 // When the folder gets focus, we don't want to announce the list of items. 364 return true; 365 } 366 367 /** 368 * @return the FolderInfo object associated with this folder 369 */ 370 public FolderInfo getInfo() { 371 return mInfo; 372 } 373 374 void bind(FolderInfo info) { 375 mInfo = info; 376 ArrayList<ShortcutInfo> children = info.contents; 377 Collections.sort(children, ITEM_POS_COMPARATOR); 378 379 ArrayList<ShortcutInfo> overflow = mContent.bindItems(children); 380 381 // If our folder has too many items we prune them from the list. This is an issue 382 // when upgrading from the old Folders implementation which could contain an unlimited 383 // number of items. 384 for (ShortcutInfo item: overflow) { 385 mInfo.remove(item); 386 LauncherModel.deleteItemFromDatabase(mLauncher, item); 387 } 388 389 DragLayer.LayoutParams lp = (DragLayer.LayoutParams) getLayoutParams(); 390 if (lp == null) { 391 lp = new DragLayer.LayoutParams(0, 0); 392 lp.customPosition = true; 393 setLayoutParams(lp); 394 } 395 centerAboutIcon(); 396 397 mItemsInvalidated = true; 398 updateTextViewFocus(); 399 mInfo.addListener(this); 400 401 if (!sDefaultFolderName.contentEquals(mInfo.title)) { 402 mFolderName.setText(mInfo.title); 403 } else { 404 mFolderName.setText(""); 405 } 406 407 // In case any children didn't come across during loading, clean up the folder accordingly 408 mFolderIcon.post(new Runnable() { 409 public void run() { 410 if (getItemCount() <= 1) { 411 replaceFolderWithFinalItem(); 412 } 413 } 414 }); 415 } 416 417 /** 418 * Creates a new UserFolder, inflated from R.layout.user_folder. 419 * 420 * @param launcher The main activity. 421 * 422 * @return A new UserFolder. 423 */ 424 @SuppressLint("InflateParams") 425 static Folder fromXml(Launcher launcher) { 426 return (Folder) launcher.getLayoutInflater().inflate( 427 FeatureFlags.LAUNCHER3_ICON_NORMALIZATION 428 ? R.layout.user_folder_icon_normalized : R.layout.user_folder, null); 429 } 430 431 /** 432 * This method is intended to make the UserFolder to be visually identical in size and position 433 * to its associated FolderIcon. This allows for a seamless transition into the expanded state. 434 */ 435 private void positionAndSizeAsIcon() { 436 if (!(getParent() instanceof DragLayer)) return; 437 setScaleX(0.8f); 438 setScaleY(0.8f); 439 setAlpha(0f); 440 mState = STATE_SMALL; 441 } 442 443 private void prepareReveal() { 444 setScaleX(1f); 445 setScaleY(1f); 446 setAlpha(1f); 447 mState = STATE_SMALL; 448 } 449 450 public void animateOpen() { 451 if (!(getParent() instanceof DragLayer)) return; 452 453 mContent.completePendingPageChanges(); 454 if (!mDragInProgress) { 455 // Open on the first page. 456 mContent.snapToPageImmediately(0); 457 } 458 459 // This is set to true in close(), but isn't reset to false until onDropCompleted(). This 460 // leads to an consistent state if you drag out of the folder and drag back in without 461 // dropping. One resulting issue is that replaceFolderWithFinalItem() can be called twice. 462 mDeleteFolderOnDropCompleted = false; 463 464 Animator openFolderAnim = null; 465 final Runnable onCompleteRunnable; 466 if (!Utilities.ATLEAST_LOLLIPOP) { 467 positionAndSizeAsIcon(); 468 centerAboutIcon(); 469 470 PropertyValuesHolder alpha = PropertyValuesHolder.ofFloat("alpha", 1); 471 PropertyValuesHolder scaleX = PropertyValuesHolder.ofFloat("scaleX", 1.0f); 472 PropertyValuesHolder scaleY = PropertyValuesHolder.ofFloat("scaleY", 1.0f); 473 final ObjectAnimator oa = 474 LauncherAnimUtils.ofPropertyValuesHolder(this, alpha, scaleX, scaleY); 475 oa.setDuration(mExpandDuration); 476 openFolderAnim = oa; 477 478 setLayerType(LAYER_TYPE_HARDWARE, null); 479 onCompleteRunnable = new Runnable() { 480 @Override 481 public void run() { 482 setLayerType(LAYER_TYPE_NONE, null); 483 } 484 }; 485 } else { 486 prepareReveal(); 487 centerAboutIcon(); 488 489 AnimatorSet anim = LauncherAnimUtils.createAnimatorSet(); 490 int width = getPaddingLeft() + getPaddingRight() + mContent.getDesiredWidth(); 491 int height = getFolderHeight(); 492 493 float transX = - 0.075f * (width / 2 - getPivotX()); 494 float transY = - 0.075f * (height / 2 - getPivotY()); 495 setTranslationX(transX); 496 setTranslationY(transY); 497 PropertyValuesHolder tx = PropertyValuesHolder.ofFloat("translationX", transX, 0); 498 PropertyValuesHolder ty = PropertyValuesHolder.ofFloat("translationY", transY, 0); 499 500 Animator drift = ObjectAnimator.ofPropertyValuesHolder(this, tx, ty); 501 drift.setDuration(mMaterialExpandDuration); 502 drift.setStartDelay(mMaterialExpandStagger); 503 drift.setInterpolator(new LogDecelerateInterpolator(100, 0)); 504 505 int rx = (int) Math.max(Math.max(width - getPivotX(), 0), getPivotX()); 506 int ry = (int) Math.max(Math.max(height - getPivotY(), 0), getPivotY()); 507 float radius = (float) Math.hypot(rx, ry); 508 509 Animator reveal = UiThreadCircularReveal.createCircularReveal(this, (int) getPivotX(), 510 (int) getPivotY(), 0, radius); 511 reveal.setDuration(mMaterialExpandDuration); 512 reveal.setInterpolator(new LogDecelerateInterpolator(100, 0)); 513 514 mContentWrapper.setAlpha(0f); 515 Animator iconsAlpha = ObjectAnimator.ofFloat(mContentWrapper, "alpha", 0f, 1f); 516 iconsAlpha.setDuration(mMaterialExpandDuration); 517 iconsAlpha.setStartDelay(mMaterialExpandStagger); 518 iconsAlpha.setInterpolator(new AccelerateInterpolator(1.5f)); 519 520 mFooter.setAlpha(0f); 521 Animator textAlpha = ObjectAnimator.ofFloat(mFooter, "alpha", 0f, 1f); 522 textAlpha.setDuration(mMaterialExpandDuration); 523 textAlpha.setStartDelay(mMaterialExpandStagger); 524 textAlpha.setInterpolator(new AccelerateInterpolator(1.5f)); 525 526 anim.play(drift); 527 anim.play(iconsAlpha); 528 anim.play(textAlpha); 529 anim.play(reveal); 530 531 openFolderAnim = anim; 532 533 mContentWrapper.setLayerType(LAYER_TYPE_HARDWARE, null); 534 mFooter.setLayerType(LAYER_TYPE_HARDWARE, null); 535 onCompleteRunnable = new Runnable() { 536 @Override 537 public void run() { 538 mContentWrapper.setLayerType(LAYER_TYPE_NONE, null); 539 mContentWrapper.setLayerType(LAYER_TYPE_NONE, null); 540 } 541 }; 542 } 543 openFolderAnim.addListener(new AnimatorListenerAdapter() { 544 @Override 545 public void onAnimationStart(Animator animation) { 546 sendCustomAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED, 547 mContent.getAccessibilityDescription()); 548 mState = STATE_ANIMATING; 549 } 550 @Override 551 public void onAnimationEnd(Animator animation) { 552 mState = STATE_OPEN; 553 554 onCompleteRunnable.run(); 555 mContent.setFocusOnFirstChild(); 556 } 557 }); 558 559 // Footer animation 560 if (mContent.getPageCount() > 1 && !mInfo.hasOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION)) { 561 int footerWidth = mContent.getDesiredWidth() 562 - mFooter.getPaddingLeft() - mFooter.getPaddingRight(); 563 564 float textWidth = mFolderName.getPaint().measureText(mFolderName.getText().toString()); 565 float translation = (footerWidth - textWidth) / 2; 566 mFolderName.setTranslationX(mContent.mIsRtl ? -translation : translation); 567 mContent.setMarkerScale(0); 568 569 // Do not update the flag if we are in drag mode. The flag will be updated, when we 570 // actually drop the icon. 571 final boolean updateAnimationFlag = !mDragInProgress; 572 openFolderAnim.addListener(new AnimatorListenerAdapter() { 573 574 @Override 575 public void onAnimationEnd(Animator animation) { 576 mFolderName.animate().setDuration(FOLDER_NAME_ANIMATION_DURATION) 577 .translationX(0) 578 .setInterpolator(Utilities.ATLEAST_LOLLIPOP ? 579 AnimationUtils.loadInterpolator(mLauncher, 580 android.R.interpolator.fast_out_slow_in) 581 : new LogDecelerateInterpolator(100, 0)); 582 mContent.animateMarkers(); 583 584 if (updateAnimationFlag) { 585 mInfo.setOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION, true, mLauncher); 586 } 587 } 588 }); 589 } else { 590 mFolderName.setTranslationX(0); 591 mContent.setMarkerScale(1); 592 } 593 594 openFolderAnim.start(); 595 596 // Make sure the folder picks up the last drag move even if the finger doesn't move. 597 if (mDragController.isDragging()) { 598 mDragController.forceTouchMove(); 599 } 600 601 FolderPagedView pages = (FolderPagedView) mContent; 602 pages.verifyVisibleHighResIcons(pages.getNextPage()); 603 } 604 605 public void beginExternalDrag(ShortcutInfo item) { 606 mCurrentDragInfo = item; 607 mEmptyCellRank = mContent.allocateRankForNewItem(item); 608 mIsExternalDrag = true; 609 mDragInProgress = true; 610 611 // Since this folder opened by another controller, it might not get onDrop or 612 // onDropComplete. Perform cleanup once drag-n-drop ends. 613 mDragController.addDragListener(this); 614 } 615 616 @Override 617 public void onDragStart(DragSource source, Object info, int dragAction) { } 618 619 @Override 620 public void onDragEnd() { 621 if (mIsExternalDrag && mDragInProgress) { 622 completeDragExit(); 623 } 624 mDragController.removeDragListener(this); 625 } 626 627 @Thunk void sendCustomAccessibilityEvent(int type, String text) { 628 AccessibilityManager accessibilityManager = (AccessibilityManager) 629 getContext().getSystemService(Context.ACCESSIBILITY_SERVICE); 630 if (accessibilityManager.isEnabled()) { 631 AccessibilityEvent event = AccessibilityEvent.obtain(type); 632 onInitializeAccessibilityEvent(event); 633 event.getText().add(text); 634 accessibilityManager.sendAccessibilityEvent(event); 635 } 636 } 637 638 public void animateClosed() { 639 if (!(getParent() instanceof DragLayer)) return; 640 PropertyValuesHolder alpha = PropertyValuesHolder.ofFloat("alpha", 0); 641 PropertyValuesHolder scaleX = PropertyValuesHolder.ofFloat("scaleX", 0.9f); 642 PropertyValuesHolder scaleY = PropertyValuesHolder.ofFloat("scaleY", 0.9f); 643 final ObjectAnimator oa = 644 LauncherAnimUtils.ofPropertyValuesHolder(this, alpha, scaleX, scaleY); 645 646 oa.addListener(new AnimatorListenerAdapter() { 647 @Override 648 public void onAnimationEnd(Animator animation) { 649 setLayerType(LAYER_TYPE_NONE, null); 650 close(true); 651 } 652 @Override 653 public void onAnimationStart(Animator animation) { 654 sendCustomAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED, 655 getContext().getString(R.string.folder_closed)); 656 mState = STATE_ANIMATING; 657 } 658 }); 659 oa.setDuration(mExpandDuration); 660 setLayerType(LAYER_TYPE_HARDWARE, null); 661 oa.start(); 662 } 663 664 public void close(boolean wasAnimated) { 665 // TODO: Clear all active animations. 666 DragLayer parent = (DragLayer) getParent(); 667 if (parent != null) { 668 parent.removeView(this); 669 } 670 mDragController.removeDropTarget(this); 671 clearFocus(); 672 if (wasAnimated) { 673 mFolderIcon.requestFocus(); 674 } 675 676 if (mRearrangeOnClose) { 677 rearrangeChildren(); 678 mRearrangeOnClose = false; 679 } 680 if (getItemCount() <= 1) { 681 if (!mDragInProgress && !mSuppressFolderDeletion) { 682 replaceFolderWithFinalItem(); 683 } else if (mDragInProgress) { 684 mDeleteFolderOnDropCompleted = true; 685 } 686 } 687 mSuppressFolderDeletion = false; 688 clearDragInfo(); 689 mState = STATE_SMALL; 690 } 691 692 public boolean acceptDrop(DragObject d) { 693 final ItemInfo item = (ItemInfo) d.dragInfo; 694 final int itemType = item.itemType; 695 return ((itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || 696 itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT) && 697 !isFull()); 698 } 699 700 public void onDragEnter(DragObject d) { 701 mPrevTargetRank = -1; 702 mOnExitAlarm.cancelAlarm(); 703 // Get the area offset such that the folder only closes if half the drag icon width 704 // is outside the folder area 705 mScrollAreaOffset = d.dragView.getDragRegionWidth() / 2 - d.xOffset; 706 } 707 708 OnAlarmListener mReorderAlarmListener = new OnAlarmListener() { 709 public void onAlarm(Alarm alarm) { 710 mContent.realTimeReorder(mEmptyCellRank, mTargetRank); 711 mEmptyCellRank = mTargetRank; 712 } 713 }; 714 715 @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1) 716 public boolean isLayoutRtl() { 717 return (getLayoutDirection() == LAYOUT_DIRECTION_RTL); 718 } 719 720 @Override 721 public void onDragOver(DragObject d) { 722 onDragOver(d, REORDER_DELAY); 723 } 724 725 private int getTargetRank(DragObject d, float[] recycle) { 726 recycle = d.getVisualCenter(recycle); 727 return mContent.findNearestArea( 728 (int) recycle[0] - getPaddingLeft(), (int) recycle[1] - getPaddingTop()); 729 } 730 731 @Thunk void onDragOver(DragObject d, int reorderDelay) { 732 if (mScrollPauseAlarm.alarmPending()) { 733 return; 734 } 735 final float[] r = new float[2]; 736 mTargetRank = getTargetRank(d, r); 737 738 if (mTargetRank != mPrevTargetRank) { 739 mReorderAlarm.cancelAlarm(); 740 mReorderAlarm.setOnAlarmListener(mReorderAlarmListener); 741 mReorderAlarm.setAlarm(REORDER_DELAY); 742 mPrevTargetRank = mTargetRank; 743 744 if (d.stateAnnouncer != null) { 745 d.stateAnnouncer.announce(getContext().getString(R.string.move_to_position, 746 mTargetRank + 1)); 747 } 748 } 749 750 float x = r[0]; 751 int currentPage = mContent.getNextPage(); 752 753 float cellOverlap = mContent.getCurrentCellLayout().getCellWidth() 754 * ICON_OVERSCROLL_WIDTH_FACTOR; 755 boolean isOutsideLeftEdge = x < cellOverlap; 756 boolean isOutsideRightEdge = x > (getWidth() - cellOverlap); 757 758 if (currentPage > 0 && (mContent.mIsRtl ? isOutsideRightEdge : isOutsideLeftEdge)) { 759 showScrollHint(DragController.SCROLL_LEFT, d); 760 } else if (currentPage < (mContent.getPageCount() - 1) 761 && (mContent.mIsRtl ? isOutsideLeftEdge : isOutsideRightEdge)) { 762 showScrollHint(DragController.SCROLL_RIGHT, d); 763 } else { 764 mOnScrollHintAlarm.cancelAlarm(); 765 if (mScrollHintDir != DragController.SCROLL_NONE) { 766 mContent.clearScrollHint(); 767 mScrollHintDir = DragController.SCROLL_NONE; 768 } 769 } 770 } 771 772 private void showScrollHint(int direction, DragObject d) { 773 // Show scroll hint on the right 774 if (mScrollHintDir != direction) { 775 mContent.showScrollHint(direction); 776 mScrollHintDir = direction; 777 } 778 779 // Set alarm for when the hint is complete 780 if (!mOnScrollHintAlarm.alarmPending() || mCurrentScrollDir != direction) { 781 mCurrentScrollDir = direction; 782 mOnScrollHintAlarm.cancelAlarm(); 783 mOnScrollHintAlarm.setOnAlarmListener(new OnScrollHintListener(d)); 784 mOnScrollHintAlarm.setAlarm(SCROLL_HINT_DURATION); 785 786 mReorderAlarm.cancelAlarm(); 787 mTargetRank = mEmptyCellRank; 788 } 789 } 790 791 OnAlarmListener mOnExitAlarmListener = new OnAlarmListener() { 792 public void onAlarm(Alarm alarm) { 793 completeDragExit(); 794 } 795 }; 796 797 public void completeDragExit() { 798 if (mInfo.opened) { 799 mLauncher.closeFolder(); 800 mRearrangeOnClose = true; 801 } else if (mState == STATE_ANIMATING) { 802 mRearrangeOnClose = true; 803 } else { 804 rearrangeChildren(); 805 clearDragInfo(); 806 } 807 } 808 809 private void clearDragInfo() { 810 mCurrentDragInfo = null; 811 mCurrentDragView = null; 812 mSuppressOnAdd = false; 813 mIsExternalDrag = false; 814 } 815 816 public void onDragExit(DragObject d) { 817 // We only close the folder if this is a true drag exit, ie. not because 818 // a drop has occurred above the folder. 819 if (!d.dragComplete) { 820 mOnExitAlarm.setOnAlarmListener(mOnExitAlarmListener); 821 mOnExitAlarm.setAlarm(ON_EXIT_CLOSE_DELAY); 822 } 823 mReorderAlarm.cancelAlarm(); 824 825 mOnScrollHintAlarm.cancelAlarm(); 826 mScrollPauseAlarm.cancelAlarm(); 827 if (mScrollHintDir != DragController.SCROLL_NONE) { 828 mContent.clearScrollHint(); 829 mScrollHintDir = DragController.SCROLL_NONE; 830 } 831 } 832 833 /** 834 * When performing an accessibility drop, onDrop is sent immediately after onDragEnter. So we 835 * need to complete all transient states based on timers. 836 */ 837 @Override 838 public void prepareAccessibilityDrop() { 839 if (mReorderAlarm.alarmPending()) { 840 mReorderAlarm.cancelAlarm(); 841 mReorderAlarmListener.onAlarm(mReorderAlarm); 842 } 843 } 844 845 public void onDropCompleted(final View target, final DragObject d, 846 final boolean isFlingToDelete, final boolean success) { 847 if (mDeferDropAfterUninstall) { 848 Log.d(TAG, "Deferred handling drop because waiting for uninstall."); 849 mDeferredAction = new Runnable() { 850 public void run() { 851 onDropCompleted(target, d, isFlingToDelete, success); 852 mDeferredAction = null; 853 } 854 }; 855 return; 856 } 857 858 boolean beingCalledAfterUninstall = mDeferredAction != null; 859 boolean successfulDrop = 860 success && (!beingCalledAfterUninstall || mUninstallSuccessful); 861 862 if (successfulDrop) { 863 if (mDeleteFolderOnDropCompleted && !mItemAddedBackToSelfViaIcon && target != this) { 864 replaceFolderWithFinalItem(); 865 } 866 } else { 867 // The drag failed, we need to return the item to the folder 868 ShortcutInfo info = (ShortcutInfo) d.dragInfo; 869 View icon = (mCurrentDragView != null && mCurrentDragView.getTag() == info) 870 ? mCurrentDragView : mContent.createNewView(info); 871 ArrayList<View> views = getItemsInReadingOrder(); 872 views.add(info.rank, icon); 873 mContent.arrangeChildren(views, views.size()); 874 mItemsInvalidated = true; 875 876 mSuppressOnAdd = true; 877 mFolderIcon.onDrop(d); 878 mSuppressOnAdd = false; 879 } 880 881 if (target != this) { 882 if (mOnExitAlarm.alarmPending()) { 883 mOnExitAlarm.cancelAlarm(); 884 if (!successfulDrop) { 885 mSuppressFolderDeletion = true; 886 } 887 mScrollPauseAlarm.cancelAlarm(); 888 completeDragExit(); 889 } 890 } 891 892 mDeleteFolderOnDropCompleted = false; 893 mDragInProgress = false; 894 mItemAddedBackToSelfViaIcon = false; 895 mCurrentDragInfo = null; 896 mCurrentDragView = null; 897 mSuppressOnAdd = false; 898 899 // Reordering may have occured, and we need to save the new item locations. We do this once 900 // at the end to prevent unnecessary database operations. 901 updateItemLocationsInDatabaseBatch(); 902 903 // Use the item count to check for multi-page as the folder UI may not have 904 // been refreshed yet. 905 if (getItemCount() <= mContent.itemsPerPage()) { 906 // Show the animation, next time something is added to the folder. 907 mInfo.setOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION, false, mLauncher); 908 } 909 } 910 911 @Override 912 public void deferCompleteDropAfterUninstallActivity() { 913 mDeferDropAfterUninstall = true; 914 } 915 916 @Override 917 public void onUninstallActivityReturned(boolean success) { 918 mDeferDropAfterUninstall = false; 919 mUninstallSuccessful = success; 920 if (mDeferredAction != null) { 921 mDeferredAction.run(); 922 } 923 } 924 925 @Override 926 public float getIntrinsicIconScaleFactor() { 927 return 1f; 928 } 929 930 @Override 931 public boolean supportsFlingToDelete() { 932 return true; 933 } 934 935 @Override 936 public boolean supportsAppInfoDropTarget() { 937 return false; 938 } 939 940 @Override 941 public boolean supportsDeleteDropTarget() { 942 return true; 943 } 944 945 @Override 946 public void onFlingToDelete(DragObject d, PointF vec) { 947 // Do nothing 948 } 949 950 @Override 951 public void onFlingToDeleteCompleted() { 952 // Do nothing 953 } 954 955 private void updateItemLocationsInDatabaseBatch() { 956 ArrayList<View> list = getItemsInReadingOrder(); 957 ArrayList<ItemInfo> items = new ArrayList<ItemInfo>(); 958 for (int i = 0; i < list.size(); i++) { 959 View v = list.get(i); 960 ItemInfo info = (ItemInfo) v.getTag(); 961 info.rank = i; 962 items.add(info); 963 } 964 965 LauncherModel.moveItemsInDatabase(mLauncher, items, mInfo.id, 0); 966 } 967 968 public void addItemLocationsInDatabase() { 969 ArrayList<View> list = getItemsInReadingOrder(); 970 for (int i = 0; i < list.size(); i++) { 971 View v = list.get(i); 972 ItemInfo info = (ItemInfo) v.getTag(); 973 LauncherModel.addItemToDatabase(mLauncher, info, mInfo.id, 0, 974 info.cellX, info.cellY); 975 } 976 } 977 978 public void notifyDrop() { 979 if (mDragInProgress) { 980 mItemAddedBackToSelfViaIcon = true; 981 } 982 } 983 984 public boolean isDropEnabled() { 985 return true; 986 } 987 988 public boolean isFull() { 989 return mContent.isFull(); 990 } 991 992 private void centerAboutIcon() { 993 DragLayer.LayoutParams lp = (DragLayer.LayoutParams) getLayoutParams(); 994 995 DragLayer parent = (DragLayer) mLauncher.findViewById(R.id.drag_layer); 996 int width = getPaddingLeft() + getPaddingRight() + mContent.getDesiredWidth(); 997 int height = getFolderHeight(); 998 999 float scale = parent.getDescendantRectRelativeToSelf(mFolderIcon, sTempRect); 1000 1001 DeviceProfile grid = mLauncher.getDeviceProfile(); 1002 1003 int centerX = (int) (sTempRect.left + sTempRect.width() * scale / 2); 1004 int centerY = (int) (sTempRect.top + sTempRect.height() * scale / 2); 1005 int centeredLeft = centerX - width / 2; 1006 int centeredTop = centerY - height / 2; 1007 1008 // We need to bound the folder to the currently visible workspace area 1009 mLauncher.getWorkspace().getPageAreaRelativeToDragLayer(sTempRect); 1010 int left = Math.min(Math.max(sTempRect.left, centeredLeft), 1011 sTempRect.left + sTempRect.width() - width); 1012 int top = Math.min(Math.max(sTempRect.top, centeredTop), 1013 sTempRect.top + sTempRect.height() - height); 1014 if (grid.isPhone && (grid.availableWidthPx - width) < grid.iconSizePx) { 1015 // Center the folder if it is full (on phones only) 1016 left = (grid.availableWidthPx - width) / 2; 1017 } else if (width >= sTempRect.width()) { 1018 // If the folder doesn't fit within the bounds, center it about the desired bounds 1019 left = sTempRect.left + (sTempRect.width() - width) / 2; 1020 } 1021 if (height >= sTempRect.height()) { 1022 top = sTempRect.top + (sTempRect.height() - height) / 2; 1023 } 1024 1025 int folderPivotX = width / 2 + (centeredLeft - left); 1026 int folderPivotY = height / 2 + (centeredTop - top); 1027 setPivotX(folderPivotX); 1028 setPivotY(folderPivotY); 1029 mFolderIconPivotX = (int) (mFolderIcon.getMeasuredWidth() * 1030 (1.0f * folderPivotX / width)); 1031 mFolderIconPivotY = (int) (mFolderIcon.getMeasuredHeight() * 1032 (1.0f * folderPivotY / height)); 1033 1034 lp.width = width; 1035 lp.height = height; 1036 lp.x = left; 1037 lp.y = top; 1038 } 1039 1040 float getPivotXForIconAnimation() { 1041 return mFolderIconPivotX; 1042 } 1043 float getPivotYForIconAnimation() { 1044 return mFolderIconPivotY; 1045 } 1046 1047 private int getContentAreaHeight() { 1048 DeviceProfile grid = mLauncher.getDeviceProfile(); 1049 Rect workspacePadding = grid.getWorkspacePadding(mContent.mIsRtl); 1050 int maxContentAreaHeight = grid.availableHeightPx - 1051 workspacePadding.top - workspacePadding.bottom - 1052 mFooterHeight; 1053 int height = Math.min(maxContentAreaHeight, 1054 mContent.getDesiredHeight()); 1055 return Math.max(height, MIN_CONTENT_DIMEN); 1056 } 1057 1058 private int getContentAreaWidth() { 1059 return Math.max(mContent.getDesiredWidth(), MIN_CONTENT_DIMEN); 1060 } 1061 1062 private int getFolderHeight() { 1063 return getFolderHeight(getContentAreaHeight()); 1064 } 1065 1066 private int getFolderHeight(int contentAreaHeight) { 1067 return getPaddingTop() + getPaddingBottom() + contentAreaHeight + mFooterHeight; 1068 } 1069 1070 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 1071 int contentWidth = getContentAreaWidth(); 1072 int contentHeight = getContentAreaHeight(); 1073 1074 int contentAreaWidthSpec = MeasureSpec.makeMeasureSpec(contentWidth, MeasureSpec.EXACTLY); 1075 int contentAreaHeightSpec = MeasureSpec.makeMeasureSpec(contentHeight, MeasureSpec.EXACTLY); 1076 1077 mContent.setFixedSize(contentWidth, contentHeight); 1078 mContentWrapper.measure(contentAreaWidthSpec, contentAreaHeightSpec); 1079 1080 if (mContent.getChildCount() > 0) { 1081 int cellIconGap = (mContent.getPageAt(0).getCellWidth() 1082 - mLauncher.getDeviceProfile().iconSizePx) / 2; 1083 mFooter.setPadding(mContent.getPaddingLeft() + cellIconGap, 1084 mFooter.getPaddingTop(), 1085 mContent.getPaddingRight() + cellIconGap, 1086 mFooter.getPaddingBottom()); 1087 } 1088 mFooter.measure(contentAreaWidthSpec, 1089 MeasureSpec.makeMeasureSpec(mFooterHeight, MeasureSpec.EXACTLY)); 1090 1091 int folderWidth = getPaddingLeft() + getPaddingRight() + contentWidth; 1092 int folderHeight = getFolderHeight(contentHeight); 1093 setMeasuredDimension(folderWidth, folderHeight); 1094 } 1095 1096 /** 1097 * Rearranges the children based on their rank. 1098 */ 1099 public void rearrangeChildren() { 1100 rearrangeChildren(-1); 1101 } 1102 1103 /** 1104 * Rearranges the children based on their rank. 1105 * @param itemCount if greater than the total children count, empty spaces are left at the end, 1106 * otherwise it is ignored. 1107 */ 1108 public void rearrangeChildren(int itemCount) { 1109 ArrayList<View> views = getItemsInReadingOrder(); 1110 mContent.arrangeChildren(views, Math.max(itemCount, views.size())); 1111 mItemsInvalidated = true; 1112 } 1113 1114 // TODO remove this once GSA code fix is submitted 1115 public ViewGroup getContent() { 1116 return (ViewGroup) mContent; 1117 } 1118 1119 public int getItemCount() { 1120 return mContent.getItemCount(); 1121 } 1122 1123 @Thunk void replaceFolderWithFinalItem() { 1124 // Add the last remaining child to the workspace in place of the folder 1125 Runnable onCompleteRunnable = new Runnable() { 1126 @Override 1127 public void run() { 1128 int itemCount = mInfo.contents.size(); 1129 if (itemCount <= 1) { 1130 View newIcon = null; 1131 1132 if (itemCount == 1) { 1133 // Move the item from the folder to the workspace, in the position of the 1134 // folder 1135 CellLayout cellLayout = mLauncher.getCellLayout(mInfo.container, 1136 mInfo.screenId); 1137 ShortcutInfo finalItem = mInfo.contents.remove(0); 1138 newIcon = mLauncher.createShortcut(cellLayout, finalItem); 1139 LauncherModel.addOrMoveItemInDatabase(mLauncher, finalItem, mInfo.container, 1140 mInfo.screenId, mInfo.cellX, mInfo.cellY); 1141 } 1142 1143 // Remove the folder 1144 mLauncher.removeItem(mFolderIcon, mInfo, true /* deleteFromDb */); 1145 if (mFolderIcon instanceof DropTarget) { 1146 mDragController.removeDropTarget((DropTarget) mFolderIcon); 1147 } 1148 1149 if (newIcon != null) { 1150 // We add the child after removing the folder to prevent both from existing 1151 // at the same time in the CellLayout. We need to add the new item with 1152 // addInScreenFromBind() to ensure that hotseat items are placed correctly. 1153 mLauncher.getWorkspace().addInScreenFromBind(newIcon, mInfo.container, 1154 mInfo.screenId, mInfo.cellX, mInfo.cellY, mInfo.spanX, mInfo.spanY); 1155 1156 // Focus the newly created child 1157 newIcon.requestFocus(); 1158 } 1159 } 1160 } 1161 }; 1162 View finalChild = mContent.getLastItem(); 1163 if (finalChild != null) { 1164 mFolderIcon.performDestroyAnimation(finalChild, onCompleteRunnable); 1165 } else { 1166 onCompleteRunnable.run(); 1167 } 1168 mDestroyed = true; 1169 } 1170 1171 boolean isDestroyed() { 1172 return mDestroyed; 1173 } 1174 1175 // This method keeps track of the first and last item in the folder for the purposes 1176 // of keyboard focus 1177 public void updateTextViewFocus() { 1178 final View firstChild = mContent.getFirstItem(); 1179 final View lastChild = mContent.getLastItem(); 1180 if (firstChild != null && lastChild != null) { 1181 mFolderName.setNextFocusDownId(lastChild.getId()); 1182 mFolderName.setNextFocusRightId(lastChild.getId()); 1183 mFolderName.setNextFocusLeftId(lastChild.getId()); 1184 mFolderName.setNextFocusUpId(lastChild.getId()); 1185 // Hitting TAB from the folder name wraps around to the first item on the current 1186 // folder page, and hitting SHIFT+TAB from that item wraps back to the folder name. 1187 mFolderName.setNextFocusForwardId(firstChild.getId()); 1188 // When clicking off the folder when editing the name, this Folder gains focus. When 1189 // pressing an arrow key from that state, give the focus to the first item. 1190 this.setNextFocusDownId(firstChild.getId()); 1191 this.setNextFocusRightId(firstChild.getId()); 1192 this.setNextFocusLeftId(firstChild.getId()); 1193 this.setNextFocusUpId(firstChild.getId()); 1194 // When pressing shift+tab in the above state, give the focus to the last item. 1195 setOnKeyListener(new OnKeyListener() { 1196 @Override 1197 public boolean onKey(View v, int keyCode, KeyEvent event) { 1198 boolean isShiftPlusTab = keyCode == KeyEvent.KEYCODE_TAB && 1199 event.hasModifiers(KeyEvent.META_SHIFT_ON); 1200 if (isShiftPlusTab && Folder.this.isFocused()) { 1201 return lastChild.requestFocus(); 1202 } 1203 return false; 1204 } 1205 }); 1206 } 1207 } 1208 1209 public void onDrop(DragObject d) { 1210 Runnable cleanUpRunnable = null; 1211 1212 // If we are coming from All Apps space, we defer removing the extra empty screen 1213 // until the folder closes 1214 if (d.dragSource != mLauncher.getWorkspace() && !(d.dragSource instanceof Folder)) { 1215 cleanUpRunnable = new Runnable() { 1216 @Override 1217 public void run() { 1218 mLauncher.exitSpringLoadedDragModeDelayed(true, 1219 Launcher.EXIT_SPRINGLOADED_MODE_SHORT_TIMEOUT, 1220 null); 1221 } 1222 }; 1223 } 1224 1225 // If the icon was dropped while the page was being scrolled, we need to compute 1226 // the target location again such that the icon is placed of the final page. 1227 if (!mContent.rankOnCurrentPage(mEmptyCellRank)) { 1228 // Reorder again. 1229 mTargetRank = getTargetRank(d, null); 1230 1231 // Rearrange items immediately. 1232 mReorderAlarmListener.onAlarm(mReorderAlarm); 1233 1234 mOnScrollHintAlarm.cancelAlarm(); 1235 mScrollPauseAlarm.cancelAlarm(); 1236 } 1237 mContent.completePendingPageChanges(); 1238 1239 View currentDragView; 1240 ShortcutInfo si = mCurrentDragInfo; 1241 if (mIsExternalDrag) { 1242 currentDragView = mContent.createAndAddViewForRank(si, mEmptyCellRank); 1243 // Actually move the item in the database if it was an external drag. Call this 1244 // before creating the view, so that ShortcutInfo is updated appropriately. 1245 LauncherModel.addOrMoveItemInDatabase( 1246 mLauncher, si, mInfo.id, 0, si.cellX, si.cellY); 1247 1248 // We only need to update the locations if it doesn't get handled in #onDropCompleted. 1249 if (d.dragSource != this) { 1250 updateItemLocationsInDatabaseBatch(); 1251 } 1252 mIsExternalDrag = false; 1253 } else { 1254 currentDragView = mCurrentDragView; 1255 mContent.addViewForRank(currentDragView, si, mEmptyCellRank); 1256 } 1257 1258 if (d.dragView.hasDrawn()) { 1259 1260 // Temporarily reset the scale such that the animation target gets calculated correctly. 1261 float scaleX = getScaleX(); 1262 float scaleY = getScaleY(); 1263 setScaleX(1.0f); 1264 setScaleY(1.0f); 1265 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, currentDragView, 1266 cleanUpRunnable, null); 1267 setScaleX(scaleX); 1268 setScaleY(scaleY); 1269 } else { 1270 d.deferDragViewCleanupPostAnimation = false; 1271 currentDragView.setVisibility(VISIBLE); 1272 } 1273 mItemsInvalidated = true; 1274 rearrangeChildren(); 1275 1276 // Temporarily suppress the listener, as we did all the work already here. 1277 mSuppressOnAdd = true; 1278 mInfo.add(si); 1279 mSuppressOnAdd = false; 1280 // Clear the drag info, as it is no longer being dragged. 1281 mCurrentDragInfo = null; 1282 mDragInProgress = false; 1283 1284 if (mContent.getPageCount() > 1) { 1285 // The animation has already been shown while opening the folder. 1286 mInfo.setOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION, true, mLauncher); 1287 } 1288 } 1289 1290 // This is used so the item doesn't immediately appear in the folder when added. In one case 1291 // we need to create the illusion that the item isn't added back to the folder yet, to 1292 // to correspond to the animation of the icon back into the folder. This is 1293 public void hideItem(ShortcutInfo info) { 1294 View v = getViewForInfo(info); 1295 v.setVisibility(INVISIBLE); 1296 } 1297 public void showItem(ShortcutInfo info) { 1298 View v = getViewForInfo(info); 1299 v.setVisibility(VISIBLE); 1300 } 1301 1302 @Override 1303 public void onAdd(ShortcutInfo item) { 1304 // If the item was dropped onto this open folder, we have done the work associated 1305 // with adding the item to the folder, as indicated by mSuppressOnAdd being set 1306 if (mSuppressOnAdd) return; 1307 mContent.createAndAddViewForRank(item, mContent.allocateRankForNewItem(item)); 1308 mItemsInvalidated = true; 1309 LauncherModel.addOrMoveItemInDatabase( 1310 mLauncher, item, mInfo.id, 0, item.cellX, item.cellY); 1311 } 1312 1313 public void onRemove(ShortcutInfo item) { 1314 mItemsInvalidated = true; 1315 // If this item is being dragged from this open folder, we have already handled 1316 // the work associated with removing the item, so we don't have to do anything here. 1317 if (item == mCurrentDragInfo) return; 1318 View v = getViewForInfo(item); 1319 mContent.removeItem(v); 1320 if (mState == STATE_ANIMATING) { 1321 mRearrangeOnClose = true; 1322 } else { 1323 rearrangeChildren(); 1324 } 1325 if (getItemCount() <= 1) { 1326 if (mInfo.opened) { 1327 mLauncher.closeFolder(this, true); 1328 } else { 1329 replaceFolderWithFinalItem(); 1330 } 1331 } 1332 } 1333 1334 private View getViewForInfo(final ShortcutInfo item) { 1335 return mContent.iterateOverItems(new ItemOperator() { 1336 1337 @Override 1338 public boolean evaluate(ItemInfo info, View view, View parent) { 1339 return info == item; 1340 } 1341 }); 1342 } 1343 1344 public void onItemsChanged() { 1345 updateTextViewFocus(); 1346 } 1347 1348 public void onTitleChanged(CharSequence title) { 1349 } 1350 1351 public ArrayList<View> getItemsInReadingOrder() { 1352 if (mItemsInvalidated) { 1353 mItemsInReadingOrder.clear(); 1354 mContent.iterateOverItems(new ItemOperator() { 1355 1356 @Override 1357 public boolean evaluate(ItemInfo info, View view, View parent) { 1358 mItemsInReadingOrder.add(view); 1359 return false; 1360 } 1361 }); 1362 mItemsInvalidated = false; 1363 } 1364 return mItemsInReadingOrder; 1365 } 1366 1367 public void getLocationInDragLayer(int[] loc) { 1368 mLauncher.getDragLayer().getLocationInDragLayer(this, loc); 1369 } 1370 1371 public void onFocusChange(View v, boolean hasFocus) { 1372 if (v == mFolderName) { 1373 if (hasFocus) { 1374 startEditingFolderName(); 1375 } else { 1376 dismissEditingName(); 1377 } 1378 } 1379 } 1380 1381 @Override 1382 public void getHitRectRelativeToDragLayer(Rect outRect) { 1383 getHitRect(outRect); 1384 outRect.left -= mScrollAreaOffset; 1385 outRect.right += mScrollAreaOffset; 1386 } 1387 1388 @Override 1389 public void fillInLaunchSourceData(View v, Bundle sourceData) { 1390 // Fill in from the folder icon's launch source provider first 1391 Stats.LaunchSourceUtils.populateSourceDataFromAncestorProvider(mFolderIcon, sourceData); 1392 sourceData.putString(Stats.SOURCE_EXTRA_SUB_CONTAINER, Stats.SUB_CONTAINER_FOLDER); 1393 sourceData.putInt(Stats.SOURCE_EXTRA_SUB_CONTAINER_PAGE, mContent.getCurrentPage()); 1394 } 1395 1396 private class OnScrollHintListener implements OnAlarmListener { 1397 1398 private final DragObject mDragObject; 1399 1400 OnScrollHintListener(DragObject object) { 1401 mDragObject = object; 1402 } 1403 1404 /** 1405 * Scroll hint has been shown long enough. Now scroll to appropriate page. 1406 */ 1407 @Override 1408 public void onAlarm(Alarm alarm) { 1409 if (mCurrentScrollDir == DragController.SCROLL_LEFT) { 1410 mContent.scrollLeft(); 1411 mScrollHintDir = DragController.SCROLL_NONE; 1412 } else if (mCurrentScrollDir == DragController.SCROLL_RIGHT) { 1413 mContent.scrollRight(); 1414 mScrollHintDir = DragController.SCROLL_NONE; 1415 } else { 1416 // This should not happen 1417 return; 1418 } 1419 mCurrentScrollDir = DragController.SCROLL_NONE; 1420 1421 // Pause drag event until the scrolling is finished 1422 mScrollPauseAlarm.setOnAlarmListener(new OnScrollFinishedListener(mDragObject)); 1423 mScrollPauseAlarm.setAlarm(DragController.RESCROLL_DELAY); 1424 } 1425 } 1426 1427 private class OnScrollFinishedListener implements OnAlarmListener { 1428 1429 private final DragObject mDragObject; 1430 1431 OnScrollFinishedListener(DragObject object) { 1432 mDragObject = object; 1433 } 1434 1435 /** 1436 * Page scroll is complete. 1437 */ 1438 @Override 1439 public void onAlarm(Alarm alarm) { 1440 // Reorder immediately on page change. 1441 onDragOver(mDragObject, 1); 1442 } 1443 } 1444 1445 // Compares item position based on rank and position giving priority to the rank. 1446 public static final Comparator<ItemInfo> ITEM_POS_COMPARATOR = new Comparator<ItemInfo>() { 1447 1448 @Override 1449 public int compare(ItemInfo lhs, ItemInfo rhs) { 1450 if (lhs.rank != rhs.rank) { 1451 return lhs.rank - rhs.rank; 1452 } else if (lhs.cellY != rhs.cellY) { 1453 return lhs.cellY - rhs.cellY; 1454 } else { 1455 return lhs.cellX - rhs.cellX; 1456 } 1457 } 1458 }; 1459 } 1460
