Folder.java revision feec2171f84f465feab96631c9d067d032aa8f88
1aeb93fc33cae3aadbb9b46083350ad2dc9aea645Paul Duffin/* 2aeb93fc33cae3aadbb9b46083350ad2dc9aea645Paul Duffin * Copyright (C) 2008 The Android Open Source Project 3aeb93fc33cae3aadbb9b46083350ad2dc9aea645Paul Duffin * 4aeb93fc33cae3aadbb9b46083350ad2dc9aea645Paul Duffin * Licensed under the Apache License, Version 2.0 (the "License"); 5aeb93fc33cae3aadbb9b46083350ad2dc9aea645Paul Duffin * you may not use this file except in compliance with the License. 6aeb93fc33cae3aadbb9b46083350ad2dc9aea645Paul Duffin * You may obtain a copy of the License at 7aeb93fc33cae3aadbb9b46083350ad2dc9aea645Paul Duffin * 8aeb93fc33cae3aadbb9b46083350ad2dc9aea645Paul Duffin * http://www.apache.org/licenses/LICENSE-2.0 9aeb93fc33cae3aadbb9b46083350ad2dc9aea645Paul Duffin * 10aeb93fc33cae3aadbb9b46083350ad2dc9aea645Paul Duffin * Unless required by applicable law or agreed to in writing, software 11aeb93fc33cae3aadbb9b46083350ad2dc9aea645Paul Duffin * distributed under the License is distributed on an "AS IS" BASIS, 12aeb93fc33cae3aadbb9b46083350ad2dc9aea645Paul Duffin * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13aeb93fc33cae3aadbb9b46083350ad2dc9aea645Paul Duffin * See the License for the specific language governing permissions and 14aeb93fc33cae3aadbb9b46083350ad2dc9aea645Paul Duffin * limitations under the License. 15aeb93fc33cae3aadbb9b46083350ad2dc9aea645Paul Duffin */ 16aeb93fc33cae3aadbb9b46083350ad2dc9aea645Paul Duffin 17aeb93fc33cae3aadbb9b46083350ad2dc9aea645Paul Duffinpackage com.android.launcher3; 18aeb93fc33cae3aadbb9b46083350ad2dc9aea645Paul Duffin 19aeb93fc33cae3aadbb9b46083350ad2dc9aea645Paul Duffinimport android.animation.Animator; 20aeb93fc33cae3aadbb9b46083350ad2dc9aea645Paul Duffinimport android.animation.AnimatorListenerAdapter; 21import android.animation.AnimatorSet; 22import android.animation.ObjectAnimator; 23import android.animation.PropertyValuesHolder; 24import android.annotation.SuppressLint; 25import android.annotation.TargetApi; 26import android.content.Context; 27import android.content.res.Resources; 28import android.graphics.Point; 29import android.graphics.PointF; 30import android.graphics.Rect; 31import android.os.Build; 32import android.os.Bundle; 33import android.text.InputType; 34import android.text.Selection; 35import android.text.Spannable; 36import android.util.AttributeSet; 37import android.util.Log; 38import android.view.ActionMode; 39import android.view.KeyEvent; 40import android.view.Menu; 41import android.view.MenuItem; 42import android.view.MotionEvent; 43import android.view.View; 44import android.view.ViewGroup; 45import android.view.accessibility.AccessibilityEvent; 46import android.view.accessibility.AccessibilityManager; 47import android.view.animation.AccelerateInterpolator; 48import android.view.animation.AnimationUtils; 49import android.view.inputmethod.EditorInfo; 50import android.view.inputmethod.InputMethodManager; 51import android.widget.LinearLayout; 52import android.widget.TextView; 53 54import com.android.launcher3.CellLayout.CellInfo; 55import com.android.launcher3.DragController.DragListener; 56import com.android.launcher3.FolderInfo.FolderListener; 57import com.android.launcher3.UninstallDropTarget.UninstallSource; 58import com.android.launcher3.Workspace.ItemOperator; 59import com.android.launcher3.accessibility.LauncherAccessibilityDelegate.AccessibilityDragSource; 60import com.android.launcher3.util.Thunk; 61import com.android.launcher3.util.UiThreadCircularReveal; 62 63import java.util.ArrayList; 64import java.util.Collections; 65import java.util.Comparator; 66 67/** 68 * Represents a set of icons chosen by the user or generated by the system. 69 */ 70public class Folder extends LinearLayout implements DragSource, View.OnClickListener, 71 View.OnLongClickListener, DropTarget, FolderListener, TextView.OnEditorActionListener, 72 View.OnFocusChangeListener, DragListener, UninstallSource, AccessibilityDragSource, 73 Stats.LaunchSourceProvider { 74 private static final String TAG = "Launcher.Folder"; 75 76 /** 77 * We avoid measuring {@link #mContentWrapper} with a 0 width or height, as this 78 * results in CellLayout being measured as UNSPECIFIED, which it does not support. 79 */ 80 private static final int MIN_CONTENT_DIMEN = 5; 81 82 static final int STATE_NONE = -1; 83 static final int STATE_SMALL = 0; 84 static final int STATE_ANIMATING = 1; 85 static final int STATE_OPEN = 2; 86 87 /** 88 * Time for which the scroll hint is shown before automatically changing page. 89 */ 90 public static final int SCROLL_HINT_DURATION = DragController.SCROLL_DELAY; 91 92 /** 93 * Fraction of icon width which behave as scroll region. 94 */ 95 private static final float ICON_OVERSCROLL_WIDTH_FACTOR = 0.45f; 96 97 private static final int FOLDER_NAME_ANIMATION_DURATION = 633; 98 99 private static final int REORDER_DELAY = 250; 100 private static final int ON_EXIT_CLOSE_DELAY = 400; 101 private static final Rect sTempRect = new Rect(); 102 103 private static String sDefaultFolderName; 104 private static String sHintText; 105 106 private final Alarm mReorderAlarm = new Alarm(); 107 private final Alarm mOnExitAlarm = new Alarm(); 108 private final Alarm mOnScrollHintAlarm = new Alarm(); 109 @Thunk final Alarm mScrollPauseAlarm = new Alarm(); 110 111 @Thunk final ArrayList<View> mItemsInReadingOrder = new ArrayList<View>(); 112 113 private final int mExpandDuration; 114 private final int mMaterialExpandDuration; 115 private final int mMaterialExpandStagger; 116 117 private final InputMethodManager mInputMethodManager; 118 119 protected final Launcher mLauncher; 120 protected DragController mDragController; 121 protected FolderInfo mInfo; 122 123 @Thunk FolderIcon mFolderIcon; 124 125 @Thunk FolderPagedView mContent; 126 @Thunk View mContentWrapper; 127 ExtendedEditText mFolderName; 128 129 private View mFooter; 130 private int mFooterHeight; 131 132 // Cell ranks used for drag and drop 133 @Thunk int mTargetRank, mPrevTargetRank, mEmptyCellRank; 134 135 @Thunk int mState = STATE_NONE; 136 private boolean mRearrangeOnClose = false; 137 boolean mItemsInvalidated = false; 138 private ShortcutInfo mCurrentDragInfo; 139 private View mCurrentDragView; 140 private boolean mIsExternalDrag; 141 boolean mSuppressOnAdd = false; 142 private boolean mDragInProgress = false; 143 private boolean mDeleteFolderOnDropCompleted = false; 144 private boolean mSuppressFolderDeletion = false; 145 private boolean mItemAddedBackToSelfViaIcon = false; 146 @Thunk float mFolderIconPivotX; 147 @Thunk float mFolderIconPivotY; 148 private boolean mIsEditingName = false; 149 150 private boolean mDestroyed; 151 152 @Thunk Runnable mDeferredAction; 153 private boolean mDeferDropAfterUninstall; 154 private boolean mUninstallSuccessful; 155 156 // Folder scrolling 157 private int mScrollAreaOffset; 158 159 @Thunk int mScrollHintDir = DragController.SCROLL_NONE; 160 @Thunk int mCurrentScrollDir = DragController.SCROLL_NONE; 161 162 /** 163 * Used to inflate the Workspace from XML. 164 * 165 * @param context The application's context. 166 * @param attrs The attributes set containing the Workspace's customization values. 167 */ 168 public Folder(Context context, AttributeSet attrs) { 169 super(context, attrs); 170 setAlwaysDrawnWithCacheEnabled(false); 171 mInputMethodManager = (InputMethodManager) 172 getContext().getSystemService(Context.INPUT_METHOD_SERVICE); 173 174 Resources res = getResources(); 175 mExpandDuration = res.getInteger(R.integer.config_folderExpandDuration); 176 mMaterialExpandDuration = res.getInteger(R.integer.config_materialFolderExpandDuration); 177 mMaterialExpandStagger = res.getInteger(R.integer.config_materialFolderExpandStagger); 178 179 if (sDefaultFolderName == null) { 180 sDefaultFolderName = res.getString(R.string.folder_name); 181 } 182 if (sHintText == null) { 183 sHintText = res.getString(R.string.folder_hint_text); 184 } 185 mLauncher = (Launcher) context; 186 // We need this view to be focusable in touch mode so that when text editing of the folder 187 // name is complete, we have something to focus on, thus hiding the cursor and giving 188 // reliable behavior when clicking the text field (since it will always gain focus on click). 189 setFocusableInTouchMode(true); 190 } 191 192 @Override 193 protected void onFinishInflate() { 194 super.onFinishInflate(); 195 mContentWrapper = findViewById(R.id.folder_content_wrapper); 196 mContent = (FolderPagedView) findViewById(R.id.folder_content); 197 mContent.setFolder(this); 198 199 mFolderName = (ExtendedEditText) findViewById(R.id.folder_name); 200 mFolderName.setOnBackKeyListener(new ExtendedEditText.OnBackKeyListener() { 201 @Override 202 public boolean onBackKey() { 203 // Close the activity on back key press 204 doneEditingFolderName(true); 205 return false; 206 } 207 }); 208 mFolderName.setOnFocusChangeListener(this); 209 210 // We disable action mode for now since it messes up the view on phones 211 mFolderName.setCustomSelectionActionModeCallback(mActionModeCallback); 212 mFolderName.setOnEditorActionListener(this); 213 mFolderName.setSelectAllOnFocus(true); 214 mFolderName.setInputType(mFolderName.getInputType() | 215 InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS | InputType.TYPE_TEXT_FLAG_CAP_WORDS); 216 217 mFooter = findViewById(R.id.folder_footer); 218 219 // We find out how tall footer wants to be (it is set to wrap_content), so that 220 // we can allocate the appropriate amount of space for it. 221 int measureSpec = MeasureSpec.UNSPECIFIED; 222 mFooter.measure(measureSpec, measureSpec); 223 mFooterHeight = mFooter.getMeasuredHeight(); 224 } 225 226 private ActionMode.Callback mActionModeCallback = new ActionMode.Callback() { 227 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 228 return false; 229 } 230 231 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 232 return false; 233 } 234 235 public void onDestroyActionMode(ActionMode mode) { 236 } 237 238 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 239 return false; 240 } 241 }; 242 243 public void onClick(View v) { 244 Object tag = v.getTag(); 245 if (tag instanceof ShortcutInfo) { 246 mLauncher.onClick(v); 247 } 248 } 249 250 public boolean onLongClick(View v) { 251 // Return if global dragging is not enabled 252 if (!mLauncher.isDraggingEnabled()) return true; 253 return beginDrag(v, false); 254 } 255 256 private boolean beginDrag(View v, boolean accessible) { 257 Object tag = v.getTag(); 258 if (tag instanceof ShortcutInfo) { 259 ShortcutInfo item = (ShortcutInfo) tag; 260 if (!v.isInTouchMode()) { 261 return false; 262 } 263 264 mLauncher.getWorkspace().beginDragShared(v, new Point(), this, accessible); 265 266 mCurrentDragInfo = item; 267 mEmptyCellRank = item.rank; 268 mCurrentDragView = v; 269 270 mContent.removeItem(mCurrentDragView); 271 mInfo.remove(mCurrentDragInfo); 272 mDragInProgress = true; 273 mItemAddedBackToSelfViaIcon = false; 274 } 275 return true; 276 } 277 278 @Override 279 public void startDrag(CellInfo cellInfo, boolean accessible) { 280 beginDrag(cellInfo.cell, accessible); 281 } 282 283 @Override 284 public void enableAccessibleDrag(boolean enable) { 285 mLauncher.getSearchDropTargetBar().enableAccessibleDrag(enable); 286 for (int i = 0; i < mContent.getChildCount(); i++) { 287 mContent.getPageAt(i).enableAccessibleDrag(enable, CellLayout.FOLDER_ACCESSIBILITY_DRAG); 288 } 289 290 mFooter.setImportantForAccessibility(enable ? IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS : 291 IMPORTANT_FOR_ACCESSIBILITY_AUTO); 292 mLauncher.getWorkspace().setAddNewPageOnDrag(!enable); 293 } 294 295 public boolean isEditingName() { 296 return mIsEditingName; 297 } 298 299 public void startEditingFolderName() { 300 mFolderName.setHint(""); 301 mIsEditingName = true; 302 } 303 304 public void dismissEditingName() { 305 mInputMethodManager.hideSoftInputFromWindow(getWindowToken(), 0); 306 doneEditingFolderName(true); 307 } 308 309 public void doneEditingFolderName(boolean commit) { 310 mFolderName.setHint(sHintText); 311 // Convert to a string here to ensure that no other state associated with the text field 312 // gets saved. 313 String newTitle = mFolderName.getText().toString(); 314 mInfo.setTitle(newTitle); 315 LauncherModel.updateItemInDatabase(mLauncher, mInfo); 316 317 if (commit) { 318 sendCustomAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED, 319 String.format(getContext().getString(R.string.folder_renamed), newTitle)); 320 } 321 322 // This ensures that focus is gained every time the field is clicked, which selects all 323 // the text and brings up the soft keyboard if necessary. 324 mFolderName.clearFocus(); 325 326 Selection.setSelection((Spannable) mFolderName.getText(), 0, 0); 327 mIsEditingName = false; 328 } 329 330 public boolean onEditorAction(TextView v, int actionId, KeyEvent event) { 331 if (actionId == EditorInfo.IME_ACTION_DONE) { 332 dismissEditingName(); 333 return true; 334 } 335 return false; 336 } 337 338 public View getEditTextRegion() { 339 return mFolderName; 340 } 341 342 /** 343 * We need to handle touch events to prevent them from falling through to the workspace below. 344 */ 345 @SuppressLint("ClickableViewAccessibility") 346 @Override 347 public boolean onTouchEvent(MotionEvent ev) { 348 return true; 349 } 350 351 public void setDragController(DragController dragController) { 352 mDragController = dragController; 353 } 354 355 public void setFolderIcon(FolderIcon icon) { 356 mFolderIcon = icon; 357 } 358 359 @Override 360 public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) { 361 // When the folder gets focus, we don't want to announce the list of items. 362 return true; 363 } 364 365 /** 366 * @return the FolderInfo object associated with this folder 367 */ 368 public FolderInfo getInfo() { 369 return mInfo; 370 } 371 372 void bind(FolderInfo info) { 373 mInfo = info; 374 ArrayList<ShortcutInfo> children = info.contents; 375 Collections.sort(children, ITEM_POS_COMPARATOR); 376 377 ArrayList<ShortcutInfo> overflow = mContent.bindItems(children); 378 379 // If our folder has too many items we prune them from the list. This is an issue 380 // when upgrading from the old Folders implementation which could contain an unlimited 381 // number of items. 382 for (ShortcutInfo item: overflow) { 383 mInfo.remove(item); 384 LauncherModel.deleteItemFromDatabase(mLauncher, item); 385 } 386 387 DragLayer.LayoutParams lp = (DragLayer.LayoutParams) getLayoutParams(); 388 if (lp == null) { 389 lp = new DragLayer.LayoutParams(0, 0); 390 lp.customPosition = true; 391 setLayoutParams(lp); 392 } 393 centerAboutIcon(); 394 395 mItemsInvalidated = true; 396 updateTextViewFocus(); 397 mInfo.addListener(this); 398 399 if (!sDefaultFolderName.contentEquals(mInfo.title)) { 400 mFolderName.setText(mInfo.title); 401 } else { 402 mFolderName.setText(""); 403 } 404 405 // In case any children didn't come across during loading, clean up the folder accordingly 406 mFolderIcon.post(new Runnable() { 407 public void run() { 408 if (getItemCount() <= 1) { 409 replaceFolderWithFinalItem(); 410 } 411 } 412 }); 413 } 414 415 /** 416 * Creates a new UserFolder, inflated from R.layout.user_folder. 417 * 418 * @param launcher The main activity. 419 * 420 * @return A new UserFolder. 421 */ 422 @SuppressLint("InflateParams") 423 static Folder fromXml(Launcher launcher) { 424 return (Folder) launcher.getLayoutInflater().inflate(R.layout.user_folder, null); 425 } 426 427 /** 428 * This method is intended to make the UserFolder to be visually identical in size and position 429 * to its associated FolderIcon. This allows for a seamless transition into the expanded state. 430 */ 431 private void positionAndSizeAsIcon() { 432 if (!(getParent() instanceof DragLayer)) return; 433 setScaleX(0.8f); 434 setScaleY(0.8f); 435 setAlpha(0f); 436 mState = STATE_SMALL; 437 } 438 439 private void prepareReveal() { 440 setScaleX(1f); 441 setScaleY(1f); 442 setAlpha(1f); 443 mState = STATE_SMALL; 444 } 445 446 public void animateOpen() { 447 if (!(getParent() instanceof DragLayer)) return; 448 449 mContent.completePendingPageChanges(); 450 if (!mDragInProgress) { 451 // Open on the first page. 452 mContent.snapToPageImmediately(0); 453 } 454 455 Animator openFolderAnim = null; 456 final Runnable onCompleteRunnable; 457 if (!Utilities.ATLEAST_LOLLIPOP) { 458 positionAndSizeAsIcon(); 459 centerAboutIcon(); 460 461 PropertyValuesHolder alpha = PropertyValuesHolder.ofFloat("alpha", 1); 462 PropertyValuesHolder scaleX = PropertyValuesHolder.ofFloat("scaleX", 1.0f); 463 PropertyValuesHolder scaleY = PropertyValuesHolder.ofFloat("scaleY", 1.0f); 464 final ObjectAnimator oa = 465 LauncherAnimUtils.ofPropertyValuesHolder(this, alpha, scaleX, scaleY); 466 oa.setDuration(mExpandDuration); 467 openFolderAnim = oa; 468 469 setLayerType(LAYER_TYPE_HARDWARE, null); 470 onCompleteRunnable = new Runnable() { 471 @Override 472 public void run() { 473 setLayerType(LAYER_TYPE_NONE, null); 474 } 475 }; 476 } else { 477 prepareReveal(); 478 centerAboutIcon(); 479 480 AnimatorSet anim = LauncherAnimUtils.createAnimatorSet(); 481 int width = getPaddingLeft() + getPaddingRight() + mContent.getDesiredWidth(); 482 int height = getFolderHeight(); 483 484 float transX = - 0.075f * (width / 2 - getPivotX()); 485 float transY = - 0.075f * (height / 2 - getPivotY()); 486 setTranslationX(transX); 487 setTranslationY(transY); 488 PropertyValuesHolder tx = PropertyValuesHolder.ofFloat("translationX", transX, 0); 489 PropertyValuesHolder ty = PropertyValuesHolder.ofFloat("translationY", transY, 0); 490 491 Animator drift = ObjectAnimator.ofPropertyValuesHolder(this, tx, ty); 492 drift.setDuration(mMaterialExpandDuration); 493 drift.setStartDelay(mMaterialExpandStagger); 494 drift.setInterpolator(new LogDecelerateInterpolator(100, 0)); 495 496 int rx = (int) Math.max(Math.max(width - getPivotX(), 0), getPivotX()); 497 int ry = (int) Math.max(Math.max(height - getPivotY(), 0), getPivotY()); 498 float radius = (float) Math.hypot(rx, ry); 499 500 Animator reveal = UiThreadCircularReveal.createCircularReveal(this, (int) getPivotX(), 501 (int) getPivotY(), 0, radius); 502 reveal.setDuration(mMaterialExpandDuration); 503 reveal.setInterpolator(new LogDecelerateInterpolator(100, 0)); 504 505 mContentWrapper.setAlpha(0f); 506 Animator iconsAlpha = ObjectAnimator.ofFloat(mContentWrapper, "alpha", 0f, 1f); 507 iconsAlpha.setDuration(mMaterialExpandDuration); 508 iconsAlpha.setStartDelay(mMaterialExpandStagger); 509 iconsAlpha.setInterpolator(new AccelerateInterpolator(1.5f)); 510 511 mFooter.setAlpha(0f); 512 Animator textAlpha = ObjectAnimator.ofFloat(mFooter, "alpha", 0f, 1f); 513 textAlpha.setDuration(mMaterialExpandDuration); 514 textAlpha.setStartDelay(mMaterialExpandStagger); 515 textAlpha.setInterpolator(new AccelerateInterpolator(1.5f)); 516 517 anim.play(drift); 518 anim.play(iconsAlpha); 519 anim.play(textAlpha); 520 anim.play(reveal); 521 522 openFolderAnim = anim; 523 524 mContentWrapper.setLayerType(LAYER_TYPE_HARDWARE, null); 525 mFooter.setLayerType(LAYER_TYPE_HARDWARE, null); 526 onCompleteRunnable = new Runnable() { 527 @Override 528 public void run() { 529 mContentWrapper.setLayerType(LAYER_TYPE_NONE, null); 530 mContentWrapper.setLayerType(LAYER_TYPE_NONE, null); 531 } 532 }; 533 } 534 openFolderAnim.addListener(new AnimatorListenerAdapter() { 535 @Override 536 public void onAnimationStart(Animator animation) { 537 sendCustomAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED, 538 mContent.getAccessibilityDescription()); 539 mState = STATE_ANIMATING; 540 } 541 @Override 542 public void onAnimationEnd(Animator animation) { 543 mState = STATE_OPEN; 544 545 if (onCompleteRunnable != null) { 546 onCompleteRunnable.run(); 547 } 548 549 mContent.setFocusOnFirstChild(); 550 } 551 }); 552 553 // Footer animation 554 if (mContent.getPageCount() > 1 && !mInfo.hasOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION)) { 555 int footerWidth = mContent.getDesiredWidth() 556 - mFooter.getPaddingLeft() - mFooter.getPaddingRight(); 557 558 float textWidth = mFolderName.getPaint().measureText(mFolderName.getText().toString()); 559 float translation = (footerWidth - textWidth) / 2; 560 mFolderName.setTranslationX(mContent.mIsRtl ? -translation : translation); 561 mContent.setMarkerScale(0); 562 563 // Do not update the flag if we are in drag mode. The flag will be updated, when we 564 // actually drop the icon. 565 final boolean updateAnimationFlag = !mDragInProgress; 566 openFolderAnim.addListener(new AnimatorListenerAdapter() { 567 568 @Override 569 public void onAnimationEnd(Animator animation) { 570 mFolderName.animate().setDuration(FOLDER_NAME_ANIMATION_DURATION) 571 .translationX(0) 572 .setInterpolator(Utilities.ATLEAST_LOLLIPOP ? 573 AnimationUtils.loadInterpolator(mLauncher, 574 android.R.interpolator.fast_out_slow_in) 575 : new LogDecelerateInterpolator(100, 0)); 576 mContent.animateMarkers(); 577 578 if (updateAnimationFlag) { 579 mInfo.setOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION, true, mLauncher); 580 } 581 } 582 }); 583 } else { 584 mFolderName.setTranslationX(0); 585 mContent.setMarkerScale(1); 586 } 587 588 openFolderAnim.start(); 589 590 // Make sure the folder picks up the last drag move even if the finger doesn't move. 591 if (mDragController.isDragging()) { 592 mDragController.forceTouchMove(); 593 } 594 595 FolderPagedView pages = (FolderPagedView) mContent; 596 pages.verifyVisibleHighResIcons(pages.getNextPage()); 597 } 598 599 public void beginExternalDrag(ShortcutInfo item) { 600 mCurrentDragInfo = item; 601 mEmptyCellRank = mContent.allocateRankForNewItem(item); 602 mIsExternalDrag = true; 603 mDragInProgress = true; 604 605 // Since this folder opened by another controller, it might not get onDrop or 606 // onDropComplete. Perform cleanup once drag-n-drop ends. 607 mDragController.addDragListener(this); 608 } 609 610 @Override 611 public void onDragStart(DragSource source, Object info, int dragAction) { } 612 613 @Override 614 public void onDragEnd() { 615 if (mIsExternalDrag && mDragInProgress) { 616 completeDragExit(); 617 } 618 mDragController.removeDragListener(this); 619 } 620 621 @Thunk void sendCustomAccessibilityEvent(int type, String text) { 622 AccessibilityManager accessibilityManager = (AccessibilityManager) 623 getContext().getSystemService(Context.ACCESSIBILITY_SERVICE); 624 if (accessibilityManager.isEnabled()) { 625 AccessibilityEvent event = AccessibilityEvent.obtain(type); 626 onInitializeAccessibilityEvent(event); 627 event.getText().add(text); 628 accessibilityManager.sendAccessibilityEvent(event); 629 } 630 } 631 632 public void animateClosed() { 633 if (!(getParent() instanceof DragLayer)) return; 634 PropertyValuesHolder alpha = PropertyValuesHolder.ofFloat("alpha", 0); 635 PropertyValuesHolder scaleX = PropertyValuesHolder.ofFloat("scaleX", 0.9f); 636 PropertyValuesHolder scaleY = PropertyValuesHolder.ofFloat("scaleY", 0.9f); 637 final ObjectAnimator oa = 638 LauncherAnimUtils.ofPropertyValuesHolder(this, alpha, scaleX, scaleY); 639 640 oa.addListener(new AnimatorListenerAdapter() { 641 @Override 642 public void onAnimationEnd(Animator animation) { 643 setLayerType(LAYER_TYPE_NONE, null); 644 close(); 645 } 646 @Override 647 public void onAnimationStart(Animator animation) { 648 sendCustomAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED, 649 getContext().getString(R.string.folder_closed)); 650 mState = STATE_ANIMATING; 651 } 652 }); 653 oa.setDuration(mExpandDuration); 654 setLayerType(LAYER_TYPE_HARDWARE, null); 655 oa.start(); 656 } 657 658 public void close() { 659 // TODO: Clear all active animations. 660 DragLayer parent = (DragLayer) getParent(); 661 if (parent != null) { 662 parent.removeView(this); 663 } 664 mDragController.removeDropTarget(this); 665 clearFocus(); 666 mFolderIcon.requestFocus(); 667 668 if (mRearrangeOnClose) { 669 rearrangeChildren(); 670 mRearrangeOnClose = false; 671 } 672 if (getItemCount() <= 1) { 673 if (!mDragInProgress && !mSuppressFolderDeletion) { 674 replaceFolderWithFinalItem(); 675 } else if (mDragInProgress) { 676 mDeleteFolderOnDropCompleted = true; 677 } 678 } 679 mSuppressFolderDeletion = false; 680 clearDragInfo(); 681 mState = STATE_SMALL; 682 } 683 684 public boolean acceptDrop(DragObject d) { 685 final ItemInfo item = (ItemInfo) d.dragInfo; 686 final int itemType = item.itemType; 687 return ((itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || 688 itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT) && 689 !isFull()); 690 } 691 692 public void onDragEnter(DragObject d) { 693 mPrevTargetRank = -1; 694 mOnExitAlarm.cancelAlarm(); 695 // Get the area offset such that the folder only closes if half the drag icon width 696 // is outside the folder area 697 mScrollAreaOffset = d.dragView.getDragRegionWidth() / 2 - d.xOffset; 698 } 699 700 OnAlarmListener mReorderAlarmListener = new OnAlarmListener() { 701 public void onAlarm(Alarm alarm) { 702 mContent.realTimeReorder(mEmptyCellRank, mTargetRank); 703 mEmptyCellRank = mTargetRank; 704 } 705 }; 706 707 @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1) 708 public boolean isLayoutRtl() { 709 return (getLayoutDirection() == LAYOUT_DIRECTION_RTL); 710 } 711 712 @Override 713 public void onDragOver(DragObject d) { 714 onDragOver(d, REORDER_DELAY); 715 } 716 717 private int getTargetRank(DragObject d, float[] recycle) { 718 recycle = d.getVisualCenter(recycle); 719 return mContent.findNearestArea( 720 (int) recycle[0] - getPaddingLeft(), (int) recycle[1] - getPaddingTop()); 721 } 722 723 @Thunk void onDragOver(DragObject d, int reorderDelay) { 724 if (mScrollPauseAlarm.alarmPending()) { 725 return; 726 } 727 final float[] r = new float[2]; 728 mTargetRank = getTargetRank(d, r); 729 730 if (mTargetRank != mPrevTargetRank) { 731 mReorderAlarm.cancelAlarm(); 732 mReorderAlarm.setOnAlarmListener(mReorderAlarmListener); 733 mReorderAlarm.setAlarm(REORDER_DELAY); 734 mPrevTargetRank = mTargetRank; 735 736 if (d.stateAnnouncer != null) { 737 d.stateAnnouncer.announce(getContext().getString(R.string.move_to_position, 738 mTargetRank + 1)); 739 } 740 } 741 742 float x = r[0]; 743 int currentPage = mContent.getNextPage(); 744 745 float cellOverlap = mContent.getCurrentCellLayout().getCellWidth() 746 * ICON_OVERSCROLL_WIDTH_FACTOR; 747 boolean isOutsideLeftEdge = x < cellOverlap; 748 boolean isOutsideRightEdge = x > (getWidth() - cellOverlap); 749 750 if (currentPage > 0 && (mContent.mIsRtl ? isOutsideRightEdge : isOutsideLeftEdge)) { 751 showScrollHint(DragController.SCROLL_LEFT, d); 752 } else if (currentPage < (mContent.getPageCount() - 1) 753 && (mContent.mIsRtl ? isOutsideLeftEdge : isOutsideRightEdge)) { 754 showScrollHint(DragController.SCROLL_RIGHT, d); 755 } else { 756 mOnScrollHintAlarm.cancelAlarm(); 757 if (mScrollHintDir != DragController.SCROLL_NONE) { 758 mContent.clearScrollHint(); 759 mScrollHintDir = DragController.SCROLL_NONE; 760 } 761 } 762 } 763 764 private void showScrollHint(int direction, DragObject d) { 765 // Show scroll hint on the right 766 if (mScrollHintDir != direction) { 767 mContent.showScrollHint(direction); 768 mScrollHintDir = direction; 769 } 770 771 // Set alarm for when the hint is complete 772 if (!mOnScrollHintAlarm.alarmPending() || mCurrentScrollDir != direction) { 773 mCurrentScrollDir = direction; 774 mOnScrollHintAlarm.cancelAlarm(); 775 mOnScrollHintAlarm.setOnAlarmListener(new OnScrollHintListener(d)); 776 mOnScrollHintAlarm.setAlarm(SCROLL_HINT_DURATION); 777 778 mReorderAlarm.cancelAlarm(); 779 mTargetRank = mEmptyCellRank; 780 } 781 } 782 783 OnAlarmListener mOnExitAlarmListener = new OnAlarmListener() { 784 public void onAlarm(Alarm alarm) { 785 completeDragExit(); 786 } 787 }; 788 789 public void completeDragExit() { 790 if (mInfo.opened) { 791 mLauncher.closeFolder(); 792 mRearrangeOnClose = true; 793 } else if (mState == STATE_ANIMATING) { 794 mRearrangeOnClose = true; 795 } else { 796 rearrangeChildren(); 797 clearDragInfo(); 798 } 799 } 800 801 private void clearDragInfo() { 802 mCurrentDragInfo = null; 803 mCurrentDragView = null; 804 mSuppressOnAdd = false; 805 mIsExternalDrag = false; 806 } 807 808 public void onDragExit(DragObject d) { 809 // We only close the folder if this is a true drag exit, ie. not because 810 // a drop has occurred above the folder. 811 if (!d.dragComplete) { 812 mOnExitAlarm.setOnAlarmListener(mOnExitAlarmListener); 813 mOnExitAlarm.setAlarm(ON_EXIT_CLOSE_DELAY); 814 } 815 mReorderAlarm.cancelAlarm(); 816 817 mOnScrollHintAlarm.cancelAlarm(); 818 mScrollPauseAlarm.cancelAlarm(); 819 if (mScrollHintDir != DragController.SCROLL_NONE) { 820 mContent.clearScrollHint(); 821 mScrollHintDir = DragController.SCROLL_NONE; 822 } 823 } 824 825 /** 826 * When performing an accessibility drop, onDrop is sent immediately after onDragEnter. So we 827 * need to complete all transient states based on timers. 828 */ 829 @Override 830 public void prepareAccessibilityDrop() { 831 if (mReorderAlarm.alarmPending()) { 832 mReorderAlarm.cancelAlarm(); 833 mReorderAlarmListener.onAlarm(mReorderAlarm); 834 } 835 } 836 837 public void onDropCompleted(final View target, final DragObject d, 838 final boolean isFlingToDelete, final boolean success) { 839 if (mDeferDropAfterUninstall) { 840 Log.d(TAG, "Deferred handling drop because waiting for uninstall."); 841 mDeferredAction = new Runnable() { 842 public void run() { 843 onDropCompleted(target, d, isFlingToDelete, success); 844 mDeferredAction = null; 845 } 846 }; 847 return; 848 } 849 850 boolean beingCalledAfterUninstall = mDeferredAction != null; 851 boolean successfulDrop = 852 success && (!beingCalledAfterUninstall || mUninstallSuccessful); 853 854 if (successfulDrop) { 855 if (mDeleteFolderOnDropCompleted && !mItemAddedBackToSelfViaIcon && target != this) { 856 replaceFolderWithFinalItem(); 857 } 858 } else { 859 // The drag failed, we need to return the item to the folder 860 ShortcutInfo info = (ShortcutInfo) d.dragInfo; 861 View icon = (mCurrentDragView != null && mCurrentDragView.getTag() == info) 862 ? mCurrentDragView : mContent.createNewView(info); 863 ArrayList<View> views = getItemsInReadingOrder(); 864 views.add(info.rank, icon); 865 mContent.arrangeChildren(views, views.size()); 866 mItemsInvalidated = true; 867 868 mSuppressOnAdd = true; 869 mFolderIcon.onDrop(d); 870 mSuppressOnAdd = false; 871 } 872 873 if (target != this) { 874 if (mOnExitAlarm.alarmPending()) { 875 mOnExitAlarm.cancelAlarm(); 876 if (!successfulDrop) { 877 mSuppressFolderDeletion = true; 878 } 879 mScrollPauseAlarm.cancelAlarm(); 880 completeDragExit(); 881 } 882 } 883 884 mDeleteFolderOnDropCompleted = false; 885 mDragInProgress = false; 886 mItemAddedBackToSelfViaIcon = false; 887 mCurrentDragInfo = null; 888 mCurrentDragView = null; 889 mSuppressOnAdd = false; 890 891 // Reordering may have occured, and we need to save the new item locations. We do this once 892 // at the end to prevent unnecessary database operations. 893 updateItemLocationsInDatabaseBatch(); 894 895 // Use the item count to check for multi-page as the folder UI may not have 896 // been refreshed yet. 897 if (getItemCount() <= mContent.itemsPerPage()) { 898 // Show the animation, next time something is added to the folder. 899 mInfo.setOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION, false, mLauncher); 900 } 901 902 } 903 904 @Override 905 public void deferCompleteDropAfterUninstallActivity() { 906 mDeferDropAfterUninstall = true; 907 } 908 909 @Override 910 public void onUninstallActivityReturned(boolean success) { 911 mDeferDropAfterUninstall = false; 912 mUninstallSuccessful = success; 913 if (mDeferredAction != null) { 914 mDeferredAction.run(); 915 } 916 } 917 918 @Override 919 public float getIntrinsicIconScaleFactor() { 920 return 1f; 921 } 922 923 @Override 924 public boolean supportsFlingToDelete() { 925 return true; 926 } 927 928 @Override 929 public boolean supportsAppInfoDropTarget() { 930 return false; 931 } 932 933 @Override 934 public boolean supportsDeleteDropTarget() { 935 return true; 936 } 937 938 @Override 939 public void onFlingToDelete(DragObject d, PointF vec) { 940 // Do nothing 941 } 942 943 @Override 944 public void onFlingToDeleteCompleted() { 945 // Do nothing 946 } 947 948 private void updateItemLocationsInDatabaseBatch() { 949 ArrayList<View> list = getItemsInReadingOrder(); 950 ArrayList<ItemInfo> items = new ArrayList<ItemInfo>(); 951 for (int i = 0; i < list.size(); i++) { 952 View v = list.get(i); 953 ItemInfo info = (ItemInfo) v.getTag(); 954 info.rank = i; 955 items.add(info); 956 } 957 958 LauncherModel.moveItemsInDatabase(mLauncher, items, mInfo.id, 0); 959 } 960 961 public void addItemLocationsInDatabase() { 962 ArrayList<View> list = getItemsInReadingOrder(); 963 for (int i = 0; i < list.size(); i++) { 964 View v = list.get(i); 965 ItemInfo info = (ItemInfo) v.getTag(); 966 LauncherModel.addItemToDatabase(mLauncher, info, mInfo.id, 0, 967 info.cellX, info.cellY); 968 } 969 } 970 971 public void notifyDrop() { 972 if (mDragInProgress) { 973 mItemAddedBackToSelfViaIcon = true; 974 } 975 } 976 977 public boolean isDropEnabled() { 978 return true; 979 } 980 981 public boolean isFull() { 982 return mContent.isFull(); 983 } 984 985 private void centerAboutIcon() { 986 DragLayer.LayoutParams lp = (DragLayer.LayoutParams) getLayoutParams(); 987 988 DragLayer parent = (DragLayer) mLauncher.findViewById(R.id.drag_layer); 989 int width = getPaddingLeft() + getPaddingRight() + mContent.getDesiredWidth(); 990 int height = getFolderHeight(); 991 992 float scale = parent.getDescendantRectRelativeToSelf(mFolderIcon, sTempRect); 993 994 DeviceProfile grid = mLauncher.getDeviceProfile(); 995 996 int centerX = (int) (sTempRect.left + sTempRect.width() * scale / 2); 997 int centerY = (int) (sTempRect.top + sTempRect.height() * scale / 2); 998 int centeredLeft = centerX - width / 2; 999 int centeredTop = centerY - height / 2; 1000 1001 // We need to bound the folder to the currently visible workspace area 1002 mLauncher.getWorkspace().getPageAreaRelativeToDragLayer(sTempRect); 1003 int left = Math.min(Math.max(sTempRect.left, centeredLeft), 1004 sTempRect.left + sTempRect.width() - width); 1005 int top = Math.min(Math.max(sTempRect.top, centeredTop), 1006 sTempRect.top + sTempRect.height() - height); 1007 if (grid.isPhone && (grid.availableWidthPx - width) < grid.iconSizePx) { 1008 // Center the folder if it is full (on phones only) 1009 left = (grid.availableWidthPx - width) / 2; 1010 } else if (width >= sTempRect.width()) { 1011 // If the folder doesn't fit within the bounds, center it about the desired bounds 1012 left = sTempRect.left + (sTempRect.width() - width) / 2; 1013 } 1014 if (height >= sTempRect.height()) { 1015 top = sTempRect.top + (sTempRect.height() - height) / 2; 1016 } 1017 1018 int folderPivotX = width / 2 + (centeredLeft - left); 1019 int folderPivotY = height / 2 + (centeredTop - top); 1020 setPivotX(folderPivotX); 1021 setPivotY(folderPivotY); 1022 mFolderIconPivotX = (int) (mFolderIcon.getMeasuredWidth() * 1023 (1.0f * folderPivotX / width)); 1024 mFolderIconPivotY = (int) (mFolderIcon.getMeasuredHeight() * 1025 (1.0f * folderPivotY / height)); 1026 1027 lp.width = width; 1028 lp.height = height; 1029 lp.x = left; 1030 lp.y = top; 1031 } 1032 1033 float getPivotXForIconAnimation() { 1034 return mFolderIconPivotX; 1035 } 1036 float getPivotYForIconAnimation() { 1037 return mFolderIconPivotY; 1038 } 1039 1040 private int getContentAreaHeight() { 1041 DeviceProfile grid = mLauncher.getDeviceProfile(); 1042 Rect workspacePadding = grid.getWorkspacePadding(mContent.mIsRtl); 1043 int maxContentAreaHeight = grid.availableHeightPx - 1044 workspacePadding.top - workspacePadding.bottom - 1045 mFooterHeight; 1046 int height = Math.min(maxContentAreaHeight, 1047 mContent.getDesiredHeight()); 1048 return Math.max(height, MIN_CONTENT_DIMEN); 1049 } 1050 1051 private int getContentAreaWidth() { 1052 return Math.max(mContent.getDesiredWidth(), MIN_CONTENT_DIMEN); 1053 } 1054 1055 private int getFolderHeight() { 1056 return getFolderHeight(getContentAreaHeight()); 1057 } 1058 1059 private int getFolderHeight(int contentAreaHeight) { 1060 return getPaddingTop() + getPaddingBottom() + contentAreaHeight + mFooterHeight; 1061 } 1062 1063 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 1064 int contentWidth = getContentAreaWidth(); 1065 int contentHeight = getContentAreaHeight(); 1066 1067 int contentAreaWidthSpec = MeasureSpec.makeMeasureSpec(contentWidth, MeasureSpec.EXACTLY); 1068 int contentAreaHeightSpec = MeasureSpec.makeMeasureSpec(contentHeight, MeasureSpec.EXACTLY); 1069 1070 mContent.setFixedSize(contentWidth, contentHeight); 1071 mContentWrapper.measure(contentAreaWidthSpec, contentAreaHeightSpec); 1072 1073 if (mContent.getChildCount() > 0) { 1074 int cellIconGap = (mContent.getPageAt(0).getCellWidth() 1075 - mLauncher.getDeviceProfile().iconSizePx) / 2; 1076 mFooter.setPadding(mContent.getPaddingLeft() + cellIconGap, 1077 mFooter.getPaddingTop(), 1078 mContent.getPaddingRight() + cellIconGap, 1079 mFooter.getPaddingBottom()); 1080 } 1081 mFooter.measure(contentAreaWidthSpec, 1082 MeasureSpec.makeMeasureSpec(mFooterHeight, MeasureSpec.EXACTLY)); 1083 1084 int folderWidth = getPaddingLeft() + getPaddingRight() + contentWidth; 1085 int folderHeight = getFolderHeight(contentHeight); 1086 setMeasuredDimension(folderWidth, folderHeight); 1087 } 1088 1089 /** 1090 * Rearranges the children based on their rank. 1091 */ 1092 public void rearrangeChildren() { 1093 rearrangeChildren(-1); 1094 } 1095 1096 /** 1097 * Rearranges the children based on their rank. 1098 * @param itemCount if greater than the total children count, empty spaces are left at the end, 1099 * otherwise it is ignored. 1100 */ 1101 public void rearrangeChildren(int itemCount) { 1102 ArrayList<View> views = getItemsInReadingOrder(); 1103 mContent.arrangeChildren(views, Math.max(itemCount, views.size())); 1104 mItemsInvalidated = true; 1105 } 1106 1107 // TODO remove this once GSA code fix is submitted 1108 public ViewGroup getContent() { 1109 return (ViewGroup) mContent; 1110 } 1111 1112 public int getItemCount() { 1113 return mContent.getItemCount(); 1114 } 1115 1116 @Thunk void replaceFolderWithFinalItem() { 1117 // Add the last remaining child to the workspace in place of the folder 1118 Runnable onCompleteRunnable = new Runnable() { 1119 @Override 1120 public void run() { 1121 int itemCount = getItemCount(); 1122 if (itemCount <= 1) { 1123 View newIcon = null; 1124 1125 if (itemCount == 1) { 1126 // Move the item from the folder to the workspace, in the position of the 1127 // folder 1128 CellLayout cellLayout = mLauncher.getCellLayout(mInfo.container, 1129 mInfo.screenId); 1130 ShortcutInfo finalItem = mInfo.contents.remove(0); 1131 newIcon = mLauncher.createShortcut(cellLayout, finalItem); 1132 LauncherModel.addOrMoveItemInDatabase(mLauncher, finalItem, mInfo.container, 1133 mInfo.screenId, mInfo.cellX, mInfo.cellY); 1134 } 1135 1136 // Remove the folder 1137 mLauncher.removeItem(mFolderIcon, mInfo, true /* deleteFromDb */); 1138 if (mFolderIcon instanceof DropTarget) { 1139 mDragController.removeDropTarget((DropTarget) mFolderIcon); 1140 } 1141 1142 if (newIcon != null) { 1143 // We add the child after removing the folder to prevent both from existing 1144 // at the same time in the CellLayout. We need to add the new item with 1145 // addInScreenFromBind() to ensure that hotseat items are placed correctly. 1146 mLauncher.getWorkspace().addInScreenFromBind(newIcon, mInfo.container, 1147 mInfo.screenId, mInfo.cellX, mInfo.cellY, mInfo.spanX, mInfo.spanY); 1148 } 1149 1150 // Focus the newly created child 1151 newIcon.requestFocus(); 1152 } 1153 } 1154 }; 1155 View finalChild = mContent.getLastItem(); 1156 if (finalChild != null) { 1157 mFolderIcon.performDestroyAnimation(finalChild, onCompleteRunnable); 1158 } else { 1159 onCompleteRunnable.run(); 1160 } 1161 mDestroyed = true; 1162 } 1163 1164 boolean isDestroyed() { 1165 return mDestroyed; 1166 } 1167 1168 // This method keeps track of the first and last item in the folder for the purposes 1169 // of keyboard focus 1170 public void updateTextViewFocus() { 1171 final View firstChild = mContent.getFirstItem(); 1172 final View lastChild = mContent.getLastItem(); 1173 if (firstChild != null && lastChild != null) { 1174 mFolderName.setNextFocusDownId(lastChild.getId()); 1175 mFolderName.setNextFocusRightId(lastChild.getId()); 1176 mFolderName.setNextFocusLeftId(lastChild.getId()); 1177 mFolderName.setNextFocusUpId(lastChild.getId()); 1178 // Hitting TAB from the folder name wraps around to the first item on the current 1179 // folder page, and hitting SHIFT+TAB from that item wraps back to the folder name. 1180 mFolderName.setNextFocusForwardId(firstChild.getId()); 1181 // When clicking off the folder when editing the name, this Folder gains focus. When 1182 // pressing an arrow key from that state, give the focus to the first item. 1183 this.setNextFocusDownId(firstChild.getId()); 1184 this.setNextFocusRightId(firstChild.getId()); 1185 this.setNextFocusLeftId(firstChild.getId()); 1186 this.setNextFocusUpId(firstChild.getId()); 1187 // When pressing shift+tab in the above state, give the focus to the last item. 1188 setOnKeyListener(new OnKeyListener() { 1189 @Override 1190 public boolean onKey(View v, int keyCode, KeyEvent event) { 1191 boolean isShiftPlusTab = keyCode == KeyEvent.KEYCODE_TAB && 1192 event.hasModifiers(KeyEvent.META_SHIFT_ON); 1193 if (isShiftPlusTab && Folder.this.isFocused()) { 1194 return lastChild.requestFocus(); 1195 } 1196 return false; 1197 } 1198 }); 1199 } 1200 } 1201 1202 public void onDrop(DragObject d) { 1203 Runnable cleanUpRunnable = null; 1204 1205 // If we are coming from All Apps space, we defer removing the extra empty screen 1206 // until the folder closes 1207 if (d.dragSource != mLauncher.getWorkspace() && !(d.dragSource instanceof Folder)) { 1208 cleanUpRunnable = new Runnable() { 1209 @Override 1210 public void run() { 1211 mLauncher.exitSpringLoadedDragModeDelayed(true, 1212 Launcher.EXIT_SPRINGLOADED_MODE_SHORT_TIMEOUT, 1213 null); 1214 } 1215 }; 1216 } 1217 1218 // If the icon was dropped while the page was being scrolled, we need to compute 1219 // the target location again such that the icon is placed of the final page. 1220 if (!mContent.rankOnCurrentPage(mEmptyCellRank)) { 1221 // Reorder again. 1222 mTargetRank = getTargetRank(d, null); 1223 1224 // Rearrange items immediately. 1225 mReorderAlarmListener.onAlarm(mReorderAlarm); 1226 1227 mOnScrollHintAlarm.cancelAlarm(); 1228 mScrollPauseAlarm.cancelAlarm(); 1229 } 1230 mContent.completePendingPageChanges(); 1231 1232 View currentDragView; 1233 ShortcutInfo si = mCurrentDragInfo; 1234 if (mIsExternalDrag) { 1235 currentDragView = mContent.createAndAddViewForRank(si, mEmptyCellRank); 1236 // Actually move the item in the database if it was an external drag. Call this 1237 // before creating the view, so that ShortcutInfo is updated appropriately. 1238 LauncherModel.addOrMoveItemInDatabase( 1239 mLauncher, si, mInfo.id, 0, si.cellX, si.cellY); 1240 1241 // We only need to update the locations if it doesn't get handled in #onDropCompleted. 1242 if (d.dragSource != this) { 1243 updateItemLocationsInDatabaseBatch(); 1244 } 1245 mIsExternalDrag = false; 1246 } else { 1247 currentDragView = mCurrentDragView; 1248 mContent.addViewForRank(currentDragView, si, mEmptyCellRank); 1249 } 1250 1251 if (d.dragView.hasDrawn()) { 1252 1253 // Temporarily reset the scale such that the animation target gets calculated correctly. 1254 float scaleX = getScaleX(); 1255 float scaleY = getScaleY(); 1256 setScaleX(1.0f); 1257 setScaleY(1.0f); 1258 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, currentDragView, 1259 cleanUpRunnable, null); 1260 setScaleX(scaleX); 1261 setScaleY(scaleY); 1262 } else { 1263 d.deferDragViewCleanupPostAnimation = false; 1264 currentDragView.setVisibility(VISIBLE); 1265 } 1266 mItemsInvalidated = true; 1267 rearrangeChildren(); 1268 1269 // Temporarily suppress the listener, as we did all the work already here. 1270 mSuppressOnAdd = true; 1271 mInfo.add(si); 1272 mSuppressOnAdd = false; 1273 // Clear the drag info, as it is no longer being dragged. 1274 mCurrentDragInfo = null; 1275 mDragInProgress = false; 1276 1277 if (mContent.getPageCount() > 1) { 1278 // The animation has already been shown while opening the folder. 1279 mInfo.setOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION, true, mLauncher); 1280 } 1281 } 1282 1283 // This is used so the item doesn't immediately appear in the folder when added. In one case 1284 // we need to create the illusion that the item isn't added back to the folder yet, to 1285 // to correspond to the animation of the icon back into the folder. This is 1286 public void hideItem(ShortcutInfo info) { 1287 View v = getViewForInfo(info); 1288 v.setVisibility(INVISIBLE); 1289 } 1290 public void showItem(ShortcutInfo info) { 1291 View v = getViewForInfo(info); 1292 v.setVisibility(VISIBLE); 1293 } 1294 1295 @Override 1296 public void onAdd(ShortcutInfo item) { 1297 // If the item was dropped onto this open folder, we have done the work associated 1298 // with adding the item to the folder, as indicated by mSuppressOnAdd being set 1299 if (mSuppressOnAdd) return; 1300 mContent.createAndAddViewForRank(item, mContent.allocateRankForNewItem(item)); 1301 mItemsInvalidated = true; 1302 LauncherModel.addOrMoveItemInDatabase( 1303 mLauncher, item, mInfo.id, 0, item.cellX, item.cellY); 1304 } 1305 1306 public void onRemove(ShortcutInfo item) { 1307 mItemsInvalidated = true; 1308 // If this item is being dragged from this open folder, we have already handled 1309 // the work associated with removing the item, so we don't have to do anything here. 1310 if (item == mCurrentDragInfo) return; 1311 View v = getViewForInfo(item); 1312 mContent.removeItem(v); 1313 if (mState == STATE_ANIMATING) { 1314 mRearrangeOnClose = true; 1315 } else { 1316 rearrangeChildren(); 1317 } 1318 if (getItemCount() <= 1) { 1319 replaceFolderWithFinalItem(); 1320 } 1321 } 1322 1323 private View getViewForInfo(final ShortcutInfo item) { 1324 return mContent.iterateOverItems(new ItemOperator() { 1325 1326 @Override 1327 public boolean evaluate(ItemInfo info, View view, View parent) { 1328 return info == item; 1329 } 1330 }); 1331 } 1332 1333 public void onItemsChanged() { 1334 updateTextViewFocus(); 1335 } 1336 1337 public void onTitleChanged(CharSequence title) { 1338 } 1339 1340 public ArrayList<View> getItemsInReadingOrder() { 1341 if (mItemsInvalidated) { 1342 mItemsInReadingOrder.clear(); 1343 mContent.iterateOverItems(new ItemOperator() { 1344 1345 @Override 1346 public boolean evaluate(ItemInfo info, View view, View parent) { 1347 mItemsInReadingOrder.add(view); 1348 return false; 1349 } 1350 }); 1351 mItemsInvalidated = false; 1352 } 1353 return mItemsInReadingOrder; 1354 } 1355 1356 public void getLocationInDragLayer(int[] loc) { 1357 mLauncher.getDragLayer().getLocationInDragLayer(this, loc); 1358 } 1359 1360 public void onFocusChange(View v, boolean hasFocus) { 1361 if (v == mFolderName && hasFocus) { 1362 startEditingFolderName(); 1363 } else if (v == mFolderName && !hasFocus) { 1364 dismissEditingName(); 1365 } 1366 } 1367 1368 @Override 1369 public void getHitRectRelativeToDragLayer(Rect outRect) { 1370 getHitRect(outRect); 1371 outRect.left -= mScrollAreaOffset; 1372 outRect.right += mScrollAreaOffset; 1373 } 1374 1375 @Override 1376 public void fillInLaunchSourceData(View v, Bundle sourceData) { 1377 // Fill in from the folder icon's launch source provider first 1378 Stats.LaunchSourceUtils.populateSourceDataFromAncestorProvider(mFolderIcon, sourceData); 1379 sourceData.putString(Stats.SOURCE_EXTRA_SUB_CONTAINER, Stats.SUB_CONTAINER_FOLDER); 1380 sourceData.putInt(Stats.SOURCE_EXTRA_SUB_CONTAINER_PAGE, mContent.getCurrentPage()); 1381 } 1382 1383 private class OnScrollHintListener implements OnAlarmListener { 1384 1385 private final DragObject mDragObject; 1386 1387 OnScrollHintListener(DragObject object) { 1388 mDragObject = object; 1389 } 1390 1391 /** 1392 * Scroll hint has been shown long enough. Now scroll to appropriate page. 1393 */ 1394 @Override 1395 public void onAlarm(Alarm alarm) { 1396 if (mCurrentScrollDir == DragController.SCROLL_LEFT) { 1397 mContent.scrollLeft(); 1398 mScrollHintDir = DragController.SCROLL_NONE; 1399 } else if (mCurrentScrollDir == DragController.SCROLL_RIGHT) { 1400 mContent.scrollRight(); 1401 mScrollHintDir = DragController.SCROLL_NONE; 1402 } else { 1403 // This should not happen 1404 return; 1405 } 1406 mCurrentScrollDir = DragController.SCROLL_NONE; 1407 1408 // Pause drag event until the scrolling is finished 1409 mScrollPauseAlarm.setOnAlarmListener(new OnScrollFinishedListener(mDragObject)); 1410 mScrollPauseAlarm.setAlarm(DragController.RESCROLL_DELAY); 1411 } 1412 } 1413 1414 private class OnScrollFinishedListener implements OnAlarmListener { 1415 1416 private final DragObject mDragObject; 1417 1418 OnScrollFinishedListener(DragObject object) { 1419 mDragObject = object; 1420 } 1421 1422 /** 1423 * Page scroll is complete. 1424 */ 1425 @Override 1426 public void onAlarm(Alarm alarm) { 1427 // Reorder immediately on page change. 1428 onDragOver(mDragObject, 1); 1429 } 1430 } 1431 1432 // Compares item position based on rank and position giving priority to the rank. 1433 public static final Comparator<ItemInfo> ITEM_POS_COMPARATOR = new Comparator<ItemInfo>() { 1434 1435 @Override 1436 public int compare(ItemInfo lhs, ItemInfo rhs) { 1437 if (lhs.rank != rhs.rank) { 1438 return lhs.rank - rhs.rank; 1439 } else if (lhs.cellY != rhs.cellY) { 1440 return lhs.cellY - rhs.cellY; 1441 } else { 1442 return lhs.cellX - rhs.cellX; 1443 } 1444 } 1445 }; 1446} 1447