Folder.java revision d5bd67dfa9ee5fda2384a75231b7a68ceb8e9bd5
1/* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.launcher3.folder; 18 19import android.animation.Animator; 20import android.animation.AnimatorListenerAdapter; 21import android.animation.AnimatorSet; 22import android.animation.ObjectAnimator; 23import android.animation.PropertyValuesHolder; 24import android.annotation.SuppressLint; 25import android.annotation.TargetApi; 26import android.content.Context; 27import android.content.res.Resources; 28import android.graphics.Point; 29import android.graphics.PointF; 30import android.graphics.Rect; 31import android.os.Build; 32import android.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.FocusFinder; 40import android.view.KeyEvent; 41import android.view.Menu; 42import android.view.MenuItem; 43import android.view.MotionEvent; 44import android.view.View; 45import android.view.ViewDebug; 46import android.view.accessibility.AccessibilityEvent; 47import android.view.accessibility.AccessibilityManager; 48import android.view.animation.AccelerateInterpolator; 49import android.view.animation.AnimationUtils; 50import android.view.inputmethod.EditorInfo; 51import android.view.inputmethod.InputMethodManager; 52import android.widget.LinearLayout; 53import android.widget.TextView; 54 55import com.android.launcher3.Alarm; 56import com.android.launcher3.CellLayout; 57import com.android.launcher3.CellLayout.CellInfo; 58import com.android.launcher3.DeviceProfile; 59import com.android.launcher3.DragSource; 60import com.android.launcher3.DropTarget; 61import com.android.launcher3.ExtendedEditText; 62import com.android.launcher3.FolderInfo; 63import com.android.launcher3.FolderInfo.FolderListener; 64import com.android.launcher3.ItemInfo; 65import com.android.launcher3.Launcher; 66import com.android.launcher3.LauncherAnimUtils; 67import com.android.launcher3.LauncherModel; 68import com.android.launcher3.LauncherSettings; 69import com.android.launcher3.LogDecelerateInterpolator; 70import com.android.launcher3.OnAlarmListener; 71import com.android.launcher3.R; 72import com.android.launcher3.ShortcutInfo; 73import com.android.launcher3.Stats; 74import com.android.launcher3.UninstallDropTarget.DropTargetSource; 75import com.android.launcher3.Utilities; 76import com.android.launcher3.Workspace.ItemOperator; 77import com.android.launcher3.accessibility.LauncherAccessibilityDelegate.AccessibilityDragSource; 78import com.android.launcher3.config.FeatureFlags; 79import com.android.launcher3.dragndrop.DragController; 80import com.android.launcher3.dragndrop.DragController.DragListener; 81import com.android.launcher3.dragndrop.DragLayer; 82import com.android.launcher3.util.Thunk; 83import com.android.launcher3.util.UiThreadCircularReveal; 84 85import java.util.ArrayList; 86import java.util.Collections; 87import java.util.Comparator; 88 89/** 90 * Represents a set of icons chosen by the user or generated by the system. 91 */ 92public class Folder extends LinearLayout implements DragSource, View.OnClickListener, 93 View.OnLongClickListener, DropTarget, FolderListener, TextView.OnEditorActionListener, 94 View.OnFocusChangeListener, DragListener, DropTargetSource, AccessibilityDragSource, 95 Stats.LaunchSourceProvider { 96 private static final String TAG = "Launcher.Folder"; 97 98 /** 99 * We avoid measuring {@link #mContentWrapper} with a 0 width or height, as this 100 * results in CellLayout being measured as UNSPECIFIED, which it does not support. 101 */ 102 private static final int MIN_CONTENT_DIMEN = 5; 103 104 static final int STATE_NONE = -1; 105 static final int STATE_SMALL = 0; 106 static final int STATE_ANIMATING = 1; 107 static final int STATE_OPEN = 2; 108 109 /** 110 * Time for which the scroll hint is shown before automatically changing page. 111 */ 112 public static final int SCROLL_HINT_DURATION = DragController.SCROLL_DELAY; 113 114 /** 115 * Fraction of icon width which behave as scroll region. 116 */ 117 private static final float ICON_OVERSCROLL_WIDTH_FACTOR = 0.45f; 118 119 private static final int FOLDER_NAME_ANIMATION_DURATION = 633; 120 121 private static final int REORDER_DELAY = 250; 122 private static final int ON_EXIT_CLOSE_DELAY = 400; 123 private static final Rect sTempRect = new Rect(); 124 125 private static String sDefaultFolderName; 126 private static String sHintText; 127 128 private final Alarm mReorderAlarm = new Alarm(); 129 private final Alarm mOnExitAlarm = new Alarm(); 130 private final Alarm mOnScrollHintAlarm = new Alarm(); 131 @Thunk final Alarm mScrollPauseAlarm = new Alarm(); 132 133 @Thunk final ArrayList<View> mItemsInReadingOrder = new ArrayList<View>(); 134 135 private final int mExpandDuration; 136 private final int mMaterialExpandDuration; 137 private final int mMaterialExpandStagger; 138 139 private final InputMethodManager mInputMethodManager; 140 141 protected final Launcher mLauncher; 142 protected DragController mDragController; 143 public FolderInfo mInfo; 144 145 @Thunk FolderIcon mFolderIcon; 146 147 @Thunk FolderPagedView mContent; 148 @Thunk View mContentWrapper; 149 public ExtendedEditText mFolderName; 150 151 private View mFooter; 152 private int mFooterHeight; 153 154 // Cell ranks used for drag and drop 155 @Thunk int mTargetRank, mPrevTargetRank, mEmptyCellRank; 156 157 @ViewDebug.ExportedProperty(category = "launcher", 158 mapping = { 159 @ViewDebug.IntToString(from = STATE_NONE, to = "STATE_NONE"), 160 @ViewDebug.IntToString(from = STATE_SMALL, to = "STATE_SMALL"), 161 @ViewDebug.IntToString(from = STATE_ANIMATING, to = "STATE_ANIMATING"), 162 @ViewDebug.IntToString(from = STATE_OPEN, to = "STATE_OPEN"), 163 }) 164 @Thunk int mState = STATE_NONE; 165 @ViewDebug.ExportedProperty(category = "launcher") 166 private boolean mRearrangeOnClose = false; 167 boolean mItemsInvalidated = false; 168 private ShortcutInfo mCurrentDragInfo; 169 private View mCurrentDragView; 170 private boolean mIsExternalDrag; 171 boolean mSuppressOnAdd = false; 172 private boolean mDragInProgress = false; 173 private boolean mDeleteFolderOnDropCompleted = false; 174 private boolean mSuppressFolderDeletion = false; 175 private boolean mItemAddedBackToSelfViaIcon = false; 176 @Thunk float mFolderIconPivotX; 177 @Thunk float mFolderIconPivotY; 178 private boolean mIsEditingName = false; 179 180 @ViewDebug.ExportedProperty(category = "launcher") 181 private boolean mDestroyed; 182 183 @Thunk Runnable mDeferredAction; 184 private boolean mDeferDropAfterUninstall; 185 private boolean mUninstallSuccessful; 186 187 // Folder scrolling 188 private int mScrollAreaOffset; 189 190 @Thunk int mScrollHintDir = DragController.SCROLL_NONE; 191 @Thunk int mCurrentScrollDir = DragController.SCROLL_NONE; 192 193 /** 194 * Used to inflate the Workspace from XML. 195 * 196 * @param context The application's context. 197 * @param attrs The attributes set containing the Workspace's customization values. 198 */ 199 public Folder(Context context, AttributeSet attrs) { 200 super(context, attrs); 201 setAlwaysDrawnWithCacheEnabled(false); 202 mInputMethodManager = (InputMethodManager) 203 getContext().getSystemService(Context.INPUT_METHOD_SERVICE); 204 205 Resources res = getResources(); 206 mExpandDuration = res.getInteger(R.integer.config_folderExpandDuration); 207 mMaterialExpandDuration = res.getInteger(R.integer.config_materialFolderExpandDuration); 208 mMaterialExpandStagger = res.getInteger(R.integer.config_materialFolderExpandStagger); 209 210 if (sDefaultFolderName == null) { 211 sDefaultFolderName = res.getString(R.string.folder_name); 212 } 213 if (sHintText == null) { 214 sHintText = res.getString(R.string.folder_hint_text); 215 } 216 mLauncher = (Launcher) context; 217 // We need this view to be focusable in touch mode so that when text editing of the folder 218 // name is complete, we have something to focus on, thus hiding the cursor and giving 219 // reliable behavior when clicking the text field (since it will always gain focus on click). 220 setFocusableInTouchMode(true); 221 } 222 223 @Override 224 protected void onFinishInflate() { 225 super.onFinishInflate(); 226 mContentWrapper = findViewById(R.id.folder_content_wrapper); 227 mContent = (FolderPagedView) findViewById(R.id.folder_content); 228 mContent.setFolder(this); 229 230 mFolderName = (ExtendedEditText) findViewById(R.id.folder_name); 231 mFolderName.setOnBackKeyListener(new ExtendedEditText.OnBackKeyListener() { 232 @Override 233 public boolean onBackKey() { 234 // Close the activity on back key press 235 doneEditingFolderName(true); 236 return false; 237 } 238 }); 239 mFolderName.setOnFocusChangeListener(this); 240 241 if (!Utilities.ATLEAST_MARSHMALLOW) { 242 // We disable action mode in older OSes where floating selection menu is not yet 243 // available. 244 mFolderName.setCustomSelectionActionModeCallback(new ActionMode.Callback() { 245 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 246 return false; 247 } 248 249 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 250 return false; 251 } 252 253 public void onDestroyActionMode(ActionMode mode) { 254 } 255 256 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 257 return false; 258 } 259 }); 260 } 261 mFolderName.setOnEditorActionListener(this); 262 mFolderName.setSelectAllOnFocus(true); 263 mFolderName.setInputType(mFolderName.getInputType() | 264 InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS | InputType.TYPE_TEXT_FLAG_CAP_WORDS); 265 266 mFooter = findViewById(R.id.folder_footer); 267 268 // We find out how tall footer wants to be (it is set to wrap_content), so that 269 // we can allocate the appropriate amount of space for it. 270 int measureSpec = MeasureSpec.UNSPECIFIED; 271 mFooter.measure(measureSpec, measureSpec); 272 mFooterHeight = mFooter.getMeasuredHeight(); 273 } 274 275 public void onClick(View v) { 276 Object tag = v.getTag(); 277 if (tag instanceof ShortcutInfo) { 278 mLauncher.onClick(v); 279 } 280 } 281 282 public boolean onLongClick(View v) { 283 // Return if global dragging is not enabled 284 if (!mLauncher.isDraggingEnabled()) return true; 285 return beginDrag(v, false); 286 } 287 288 private boolean beginDrag(View v, boolean accessible) { 289 Object tag = v.getTag(); 290 if (tag instanceof ShortcutInfo) { 291 ShortcutInfo item = (ShortcutInfo) tag; 292 if (!v.isInTouchMode()) { 293 return false; 294 } 295 296 mLauncher.getWorkspace().beginDragShared(v, new Point(), this, accessible); 297 298 mCurrentDragInfo = item; 299 mEmptyCellRank = item.rank; 300 mCurrentDragView = v; 301 302 mContent.removeItem(mCurrentDragView); 303 mInfo.remove(mCurrentDragInfo); 304 mDragInProgress = true; 305 mItemAddedBackToSelfViaIcon = false; 306 } 307 return true; 308 } 309 310 @Override 311 public void startDrag(CellInfo cellInfo, boolean accessible) { 312 beginDrag(cellInfo.cell, accessible); 313 } 314 315 @Override 316 public void enableAccessibleDrag(boolean enable) { 317 mLauncher.getSearchDropTargetBar().enableAccessibleDrag(enable); 318 for (int i = 0; i < mContent.getChildCount(); i++) { 319 mContent.getPageAt(i).enableAccessibleDrag(enable, CellLayout.FOLDER_ACCESSIBILITY_DRAG); 320 } 321 322 mFooter.setImportantForAccessibility(enable ? IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS : 323 IMPORTANT_FOR_ACCESSIBILITY_AUTO); 324 mLauncher.getWorkspace().setAddNewPageOnDrag(!enable); 325 } 326 327 public boolean isEditingName() { 328 return mIsEditingName; 329 } 330 331 public void startEditingFolderName() { 332 mFolderName.setHint(""); 333 mIsEditingName = true; 334 } 335 336 public void dismissEditingName() { 337 mInputMethodManager.hideSoftInputFromWindow(getWindowToken(), 0); 338 doneEditingFolderName(true); 339 } 340 341 public void doneEditingFolderName(boolean commit) { 342 mFolderName.setHint(sHintText); 343 // Convert to a string here to ensure that no other state associated with the text field 344 // gets saved. 345 String newTitle = mFolderName.getText().toString(); 346 mInfo.setTitle(newTitle); 347 LauncherModel.updateItemInDatabase(mLauncher, mInfo); 348 349 if (commit) { 350 sendCustomAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED, 351 getContext().getString(R.string.folder_renamed, newTitle)); 352 } 353 354 // This ensures that focus is gained every time the field is clicked, which selects all 355 // the text and brings up the soft keyboard if necessary. 356 mFolderName.clearFocus(); 357 358 Selection.setSelection((Spannable) mFolderName.getText(), 0, 0); 359 mIsEditingName = false; 360 } 361 362 public boolean onEditorAction(TextView v, int actionId, KeyEvent event) { 363 if (actionId == EditorInfo.IME_ACTION_DONE) { 364 dismissEditingName(); 365 return true; 366 } 367 return false; 368 } 369 370 public View getEditTextRegion() { 371 return mFolderName; 372 } 373 374 /** 375 * We need to handle touch events to prevent them from falling through to the workspace below. 376 */ 377 @SuppressLint("ClickableViewAccessibility") 378 @Override 379 public boolean onTouchEvent(MotionEvent ev) { 380 return true; 381 } 382 383 public void setDragController(DragController dragController) { 384 mDragController = dragController; 385 } 386 387 public void setFolderIcon(FolderIcon icon) { 388 mFolderIcon = icon; 389 } 390 391 @Override 392 protected void onAttachedToWindow() { 393 // requestFocus() causes the focus onto the folder itself, which doesn't cause visual 394 // effect but the next arrow key can start the keyboard focus inside of the folder, not 395 // the folder itself. 396 requestFocus(); 397 super.onAttachedToWindow(); 398 } 399 400 @Override 401 public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) { 402 // When the folder gets focus, we don't want to announce the list of items. 403 return true; 404 } 405 406 @Override 407 public View focusSearch(int direction) { 408 // When the folder is focused, further focus search should be within the folder contents. 409 return FocusFinder.getInstance().findNextFocus(this, null, direction); 410 } 411 412 /** 413 * @return the FolderInfo object associated with this folder 414 */ 415 public FolderInfo getInfo() { 416 return mInfo; 417 } 418 419 void bind(FolderInfo info) { 420 mInfo = info; 421 ArrayList<ShortcutInfo> children = info.contents; 422 Collections.sort(children, ITEM_POS_COMPARATOR); 423 424 ArrayList<ShortcutInfo> overflow = mContent.bindItems(children); 425 426 // If our folder has too many items we prune them from the list. This is an issue 427 // when upgrading from the old Folders implementation which could contain an unlimited 428 // number of items. 429 for (ShortcutInfo item: overflow) { 430 mInfo.remove(item); 431 LauncherModel.deleteItemFromDatabase(mLauncher, item); 432 } 433 434 DragLayer.LayoutParams lp = (DragLayer.LayoutParams) getLayoutParams(); 435 if (lp == null) { 436 lp = new DragLayer.LayoutParams(0, 0); 437 lp.customPosition = true; 438 setLayoutParams(lp); 439 } 440 centerAboutIcon(); 441 442 mItemsInvalidated = true; 443 updateTextViewFocus(); 444 mInfo.addListener(this); 445 446 if (!sDefaultFolderName.contentEquals(mInfo.title)) { 447 mFolderName.setText(mInfo.title); 448 } else { 449 mFolderName.setText(""); 450 } 451 452 // In case any children didn't come across during loading, clean up the folder accordingly 453 mFolderIcon.post(new Runnable() { 454 public void run() { 455 if (getItemCount() <= 1) { 456 replaceFolderWithFinalItem(); 457 } 458 } 459 }); 460 } 461 462 /** 463 * Creates a new UserFolder, inflated from R.layout.user_folder. 464 * 465 * @param launcher The main activity. 466 * 467 * @return A new UserFolder. 468 */ 469 @SuppressLint("InflateParams") 470 static Folder fromXml(Launcher launcher) { 471 return (Folder) launcher.getLayoutInflater().inflate( 472 FeatureFlags.LAUNCHER3_DISABLE_ICON_NORMALIZATION 473 ? R.layout.user_folder : R.layout.user_folder_icon_normalized, null); 474 } 475 476 /** 477 * This method is intended to make the UserFolder to be visually identical in size and position 478 * to its associated FolderIcon. This allows for a seamless transition into the expanded state. 479 */ 480 private void positionAndSizeAsIcon() { 481 if (!(getParent() instanceof DragLayer)) return; 482 setScaleX(0.8f); 483 setScaleY(0.8f); 484 setAlpha(0f); 485 mState = STATE_SMALL; 486 } 487 488 private void prepareReveal() { 489 setScaleX(1f); 490 setScaleY(1f); 491 setAlpha(1f); 492 mState = STATE_SMALL; 493 } 494 495 public void animateOpen() { 496 if (!(getParent() instanceof DragLayer)) return; 497 498 mContent.completePendingPageChanges(); 499 if (!mDragInProgress) { 500 // Open on the first page. 501 mContent.snapToPageImmediately(0); 502 } 503 504 // This is set to true in close(), but isn't reset to false until onDropCompleted(). This 505 // leads to an consistent state if you drag out of the folder and drag back in without 506 // dropping. One resulting issue is that replaceFolderWithFinalItem() can be called twice. 507 mDeleteFolderOnDropCompleted = false; 508 509 Animator openFolderAnim = null; 510 final Runnable onCompleteRunnable; 511 if (!Utilities.ATLEAST_LOLLIPOP) { 512 positionAndSizeAsIcon(); 513 centerAboutIcon(); 514 515 final ObjectAnimator oa = LauncherAnimUtils.ofViewAlphaAndScale(this, 1, 1, 1); 516 oa.setDuration(mExpandDuration); 517 openFolderAnim = oa; 518 519 setLayerType(LAYER_TYPE_HARDWARE, null); 520 onCompleteRunnable = new Runnable() { 521 @Override 522 public void run() { 523 setLayerType(LAYER_TYPE_NONE, null); 524 } 525 }; 526 } else { 527 prepareReveal(); 528 centerAboutIcon(); 529 530 AnimatorSet anim = LauncherAnimUtils.createAnimatorSet(); 531 int width = getPaddingLeft() + getPaddingRight() + mContent.getDesiredWidth(); 532 int height = getFolderHeight(); 533 534 float transX = - 0.075f * (width / 2 - getPivotX()); 535 float transY = - 0.075f * (height / 2 - getPivotY()); 536 setTranslationX(transX); 537 setTranslationY(transY); 538 PropertyValuesHolder tx = PropertyValuesHolder.ofFloat(TRANSLATION_X, transX, 0); 539 PropertyValuesHolder ty = PropertyValuesHolder.ofFloat(TRANSLATION_Y, transY, 0); 540 541 Animator drift = ObjectAnimator.ofPropertyValuesHolder(this, tx, ty); 542 drift.setDuration(mMaterialExpandDuration); 543 drift.setStartDelay(mMaterialExpandStagger); 544 drift.setInterpolator(new LogDecelerateInterpolator(100, 0)); 545 546 int rx = (int) Math.max(Math.max(width - getPivotX(), 0), getPivotX()); 547 int ry = (int) Math.max(Math.max(height - getPivotY(), 0), getPivotY()); 548 float radius = (float) Math.hypot(rx, ry); 549 550 Animator reveal = UiThreadCircularReveal.createCircularReveal(this, (int) getPivotX(), 551 (int) getPivotY(), 0, radius); 552 reveal.setDuration(mMaterialExpandDuration); 553 reveal.setInterpolator(new LogDecelerateInterpolator(100, 0)); 554 555 mContentWrapper.setAlpha(0f); 556 Animator iconsAlpha = ObjectAnimator.ofFloat(mContentWrapper, "alpha", 0f, 1f); 557 iconsAlpha.setDuration(mMaterialExpandDuration); 558 iconsAlpha.setStartDelay(mMaterialExpandStagger); 559 iconsAlpha.setInterpolator(new AccelerateInterpolator(1.5f)); 560 561 mFooter.setAlpha(0f); 562 Animator textAlpha = ObjectAnimator.ofFloat(mFooter, "alpha", 0f, 1f); 563 textAlpha.setDuration(mMaterialExpandDuration); 564 textAlpha.setStartDelay(mMaterialExpandStagger); 565 textAlpha.setInterpolator(new AccelerateInterpolator(1.5f)); 566 567 anim.play(drift); 568 anim.play(iconsAlpha); 569 anim.play(textAlpha); 570 anim.play(reveal); 571 572 openFolderAnim = anim; 573 574 mContentWrapper.setLayerType(LAYER_TYPE_HARDWARE, null); 575 mFooter.setLayerType(LAYER_TYPE_HARDWARE, null); 576 onCompleteRunnable = new Runnable() { 577 @Override 578 public void run() { 579 mContentWrapper.setLayerType(LAYER_TYPE_NONE, null); 580 mContentWrapper.setLayerType(LAYER_TYPE_NONE, null); 581 } 582 }; 583 } 584 openFolderAnim.addListener(new AnimatorListenerAdapter() { 585 @Override 586 public void onAnimationStart(Animator animation) { 587 sendCustomAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED, 588 mContent.getAccessibilityDescription()); 589 mState = STATE_ANIMATING; 590 } 591 @Override 592 public void onAnimationEnd(Animator animation) { 593 mState = STATE_OPEN; 594 595 onCompleteRunnable.run(); 596 mContent.setFocusOnFirstChild(); 597 } 598 }); 599 600 // Footer animation 601 if (mContent.getPageCount() > 1 && !mInfo.hasOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION)) { 602 int footerWidth = mContent.getDesiredWidth() 603 - mFooter.getPaddingLeft() - mFooter.getPaddingRight(); 604 605 float textWidth = mFolderName.getPaint().measureText(mFolderName.getText().toString()); 606 float translation = (footerWidth - textWidth) / 2; 607 mFolderName.setTranslationX(mContent.mIsRtl ? -translation : translation); 608 mContent.setMarkerScale(0); 609 610 // Do not update the flag if we are in drag mode. The flag will be updated, when we 611 // actually drop the icon. 612 final boolean updateAnimationFlag = !mDragInProgress; 613 openFolderAnim.addListener(new AnimatorListenerAdapter() { 614 615 @SuppressLint("InlinedApi") 616 @Override 617 public void onAnimationEnd(Animator animation) { 618 mFolderName.animate().setDuration(FOLDER_NAME_ANIMATION_DURATION) 619 .translationX(0) 620 .setInterpolator(Utilities.ATLEAST_LOLLIPOP ? 621 AnimationUtils.loadInterpolator(mLauncher, 622 android.R.interpolator.fast_out_slow_in) 623 : new LogDecelerateInterpolator(100, 0)); 624 mContent.animateMarkers(); 625 626 if (updateAnimationFlag) { 627 mInfo.setOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION, true, mLauncher); 628 } 629 } 630 }); 631 } else { 632 mFolderName.setTranslationX(0); 633 mContent.setMarkerScale(1); 634 } 635 636 openFolderAnim.start(); 637 638 // Make sure the folder picks up the last drag move even if the finger doesn't move. 639 if (mDragController.isDragging()) { 640 mDragController.forceTouchMove(); 641 } 642 643 mContent.verifyVisibleHighResIcons(mContent.getNextPage()); 644 } 645 646 /** 647 * Opens the folder without any animation 648 */ 649 public void open() { 650 if (!(getParent() instanceof DragLayer)) return; 651 652 mContent.completePendingPageChanges(); 653 if (!mDragInProgress) { 654 // Open on the first page. 655 mContent.snapToPageImmediately(0); 656 } 657 centerAboutIcon(); 658 mFolderName.setTranslationX(0); 659 mContent.setMarkerScale(1); 660 661 // Make sure the folder picks up the last drag move even if the finger doesn't move. 662 if (mDragController.isDragging()) { 663 mDragController.forceTouchMove(); 664 } 665 666 mContent.verifyVisibleHighResIcons(mContent.getNextPage()); 667 } 668 669 public void beginExternalDrag(ShortcutInfo item) { 670 mCurrentDragInfo = item; 671 mEmptyCellRank = mContent.allocateRankForNewItem(item); 672 mIsExternalDrag = true; 673 mDragInProgress = true; 674 675 // Since this folder opened by another controller, it might not get onDrop or 676 // onDropComplete. Perform cleanup once drag-n-drop ends. 677 mDragController.addDragListener(this); 678 } 679 680 @Override 681 public void onDragStart(DragSource source, ItemInfo info, int dragAction) { } 682 683 @Override 684 public void onDragEnd() { 685 if (mIsExternalDrag && mDragInProgress) { 686 completeDragExit(); 687 } 688 mDragController.removeDragListener(this); 689 } 690 691 @Thunk void sendCustomAccessibilityEvent(int type, String text) { 692 AccessibilityManager accessibilityManager = (AccessibilityManager) 693 getContext().getSystemService(Context.ACCESSIBILITY_SERVICE); 694 if (accessibilityManager.isEnabled()) { 695 AccessibilityEvent event = AccessibilityEvent.obtain(type); 696 onInitializeAccessibilityEvent(event); 697 event.getText().add(text); 698 accessibilityManager.sendAccessibilityEvent(event); 699 } 700 } 701 702 public void animateClosed() { 703 if (!(getParent() instanceof DragLayer)) return; 704 final ObjectAnimator oa = LauncherAnimUtils.ofViewAlphaAndScale(this, 0, 0.9f, 0.9f); 705 oa.addListener(new AnimatorListenerAdapter() { 706 @Override 707 public void onAnimationEnd(Animator animation) { 708 setLayerType(LAYER_TYPE_NONE, null); 709 close(true); 710 } 711 @Override 712 public void onAnimationStart(Animator animation) { 713 sendCustomAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED, 714 getContext().getString(R.string.folder_closed)); 715 mState = STATE_ANIMATING; 716 } 717 }); 718 oa.setDuration(mExpandDuration); 719 setLayerType(LAYER_TYPE_HARDWARE, null); 720 oa.start(); 721 } 722 723 public void close(boolean wasAnimated) { 724 // TODO: Clear all active animations. 725 DragLayer parent = (DragLayer) getParent(); 726 if (parent != null) { 727 parent.removeView(this); 728 } 729 mDragController.removeDropTarget(this); 730 clearFocus(); 731 if (wasAnimated) { 732 mFolderIcon.requestFocus(); 733 } 734 735 if (mRearrangeOnClose) { 736 rearrangeChildren(); 737 mRearrangeOnClose = false; 738 } 739 if (getItemCount() <= 1) { 740 if (!mDragInProgress && !mSuppressFolderDeletion) { 741 replaceFolderWithFinalItem(); 742 } else if (mDragInProgress) { 743 mDeleteFolderOnDropCompleted = true; 744 } 745 } 746 mSuppressFolderDeletion = false; 747 clearDragInfo(); 748 mState = STATE_SMALL; 749 } 750 751 public boolean acceptDrop(DragObject d) { 752 final ItemInfo item = d.dragInfo; 753 final int itemType = item.itemType; 754 return ((itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || 755 itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT) && 756 !isFull()); 757 } 758 759 public void onDragEnter(DragObject d) { 760 mPrevTargetRank = -1; 761 mOnExitAlarm.cancelAlarm(); 762 // Get the area offset such that the folder only closes if half the drag icon width 763 // is outside the folder area 764 mScrollAreaOffset = d.dragView.getDragRegionWidth() / 2 - d.xOffset; 765 } 766 767 OnAlarmListener mReorderAlarmListener = new OnAlarmListener() { 768 public void onAlarm(Alarm alarm) { 769 mContent.realTimeReorder(mEmptyCellRank, mTargetRank); 770 mEmptyCellRank = mTargetRank; 771 } 772 }; 773 774 @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1) 775 public boolean isLayoutRtl() { 776 return (getLayoutDirection() == LAYOUT_DIRECTION_RTL); 777 } 778 779 @Override 780 public void onDragOver(DragObject d) { 781 onDragOver(d, REORDER_DELAY); 782 } 783 784 private int getTargetRank(DragObject d, float[] recycle) { 785 recycle = d.getVisualCenter(recycle); 786 return mContent.findNearestArea( 787 (int) recycle[0] - getPaddingLeft(), (int) recycle[1] - getPaddingTop()); 788 } 789 790 @Thunk void onDragOver(DragObject d, int reorderDelay) { 791 if (mScrollPauseAlarm.alarmPending()) { 792 return; 793 } 794 final float[] r = new float[2]; 795 mTargetRank = getTargetRank(d, r); 796 797 if (mTargetRank != mPrevTargetRank) { 798 mReorderAlarm.cancelAlarm(); 799 mReorderAlarm.setOnAlarmListener(mReorderAlarmListener); 800 mReorderAlarm.setAlarm(REORDER_DELAY); 801 mPrevTargetRank = mTargetRank; 802 803 if (d.stateAnnouncer != null) { 804 d.stateAnnouncer.announce(getContext().getString(R.string.move_to_position, 805 mTargetRank + 1)); 806 } 807 } 808 809 float x = r[0]; 810 int currentPage = mContent.getNextPage(); 811 812 float cellOverlap = mContent.getCurrentCellLayout().getCellWidth() 813 * ICON_OVERSCROLL_WIDTH_FACTOR; 814 boolean isOutsideLeftEdge = x < cellOverlap; 815 boolean isOutsideRightEdge = x > (getWidth() - cellOverlap); 816 817 if (currentPage > 0 && (mContent.mIsRtl ? isOutsideRightEdge : isOutsideLeftEdge)) { 818 showScrollHint(DragController.SCROLL_LEFT, d); 819 } else if (currentPage < (mContent.getPageCount() - 1) 820 && (mContent.mIsRtl ? isOutsideLeftEdge : isOutsideRightEdge)) { 821 showScrollHint(DragController.SCROLL_RIGHT, d); 822 } else { 823 mOnScrollHintAlarm.cancelAlarm(); 824 if (mScrollHintDir != DragController.SCROLL_NONE) { 825 mContent.clearScrollHint(); 826 mScrollHintDir = DragController.SCROLL_NONE; 827 } 828 } 829 } 830 831 private void showScrollHint(int direction, DragObject d) { 832 // Show scroll hint on the right 833 if (mScrollHintDir != direction) { 834 mContent.showScrollHint(direction); 835 mScrollHintDir = direction; 836 } 837 838 // Set alarm for when the hint is complete 839 if (!mOnScrollHintAlarm.alarmPending() || mCurrentScrollDir != direction) { 840 mCurrentScrollDir = direction; 841 mOnScrollHintAlarm.cancelAlarm(); 842 mOnScrollHintAlarm.setOnAlarmListener(new OnScrollHintListener(d)); 843 mOnScrollHintAlarm.setAlarm(SCROLL_HINT_DURATION); 844 845 mReorderAlarm.cancelAlarm(); 846 mTargetRank = mEmptyCellRank; 847 } 848 } 849 850 OnAlarmListener mOnExitAlarmListener = new OnAlarmListener() { 851 public void onAlarm(Alarm alarm) { 852 completeDragExit(); 853 } 854 }; 855 856 public void completeDragExit() { 857 if (mInfo.opened) { 858 mLauncher.closeFolder(); 859 mRearrangeOnClose = true; 860 } else if (mState == STATE_ANIMATING) { 861 mRearrangeOnClose = true; 862 } else { 863 rearrangeChildren(); 864 clearDragInfo(); 865 } 866 } 867 868 private void clearDragInfo() { 869 mCurrentDragInfo = null; 870 mCurrentDragView = null; 871 mSuppressOnAdd = false; 872 mIsExternalDrag = false; 873 } 874 875 public void onDragExit(DragObject d) { 876 // We only close the folder if this is a true drag exit, ie. not because 877 // a drop has occurred above the folder. 878 if (!d.dragComplete) { 879 mOnExitAlarm.setOnAlarmListener(mOnExitAlarmListener); 880 mOnExitAlarm.setAlarm(ON_EXIT_CLOSE_DELAY); 881 } 882 mReorderAlarm.cancelAlarm(); 883 884 mOnScrollHintAlarm.cancelAlarm(); 885 mScrollPauseAlarm.cancelAlarm(); 886 if (mScrollHintDir != DragController.SCROLL_NONE) { 887 mContent.clearScrollHint(); 888 mScrollHintDir = DragController.SCROLL_NONE; 889 } 890 } 891 892 /** 893 * When performing an accessibility drop, onDrop is sent immediately after onDragEnter. So we 894 * need to complete all transient states based on timers. 895 */ 896 @Override 897 public void prepareAccessibilityDrop() { 898 if (mReorderAlarm.alarmPending()) { 899 mReorderAlarm.cancelAlarm(); 900 mReorderAlarmListener.onAlarm(mReorderAlarm); 901 } 902 } 903 904 public void onDropCompleted(final View target, final DragObject d, 905 final boolean isFlingToDelete, final boolean success) { 906 if (mDeferDropAfterUninstall) { 907 Log.d(TAG, "Deferred handling drop because waiting for uninstall."); 908 mDeferredAction = new Runnable() { 909 public void run() { 910 onDropCompleted(target, d, isFlingToDelete, success); 911 mDeferredAction = null; 912 } 913 }; 914 return; 915 } 916 917 boolean beingCalledAfterUninstall = mDeferredAction != null; 918 boolean successfulDrop = 919 success && (!beingCalledAfterUninstall || mUninstallSuccessful); 920 921 if (successfulDrop) { 922 if (mDeleteFolderOnDropCompleted && !mItemAddedBackToSelfViaIcon && target != this) { 923 replaceFolderWithFinalItem(); 924 } 925 } else { 926 // The drag failed, we need to return the item to the folder 927 ShortcutInfo info = (ShortcutInfo) d.dragInfo; 928 View icon = (mCurrentDragView != null && mCurrentDragView.getTag() == info) 929 ? mCurrentDragView : mContent.createNewView(info); 930 ArrayList<View> views = getItemsInReadingOrder(); 931 views.add(info.rank, icon); 932 mContent.arrangeChildren(views, views.size()); 933 mItemsInvalidated = true; 934 935 mSuppressOnAdd = true; 936 mFolderIcon.onDrop(d); 937 mSuppressOnAdd = false; 938 } 939 940 if (target != this) { 941 if (mOnExitAlarm.alarmPending()) { 942 mOnExitAlarm.cancelAlarm(); 943 if (!successfulDrop) { 944 mSuppressFolderDeletion = true; 945 } 946 mScrollPauseAlarm.cancelAlarm(); 947 completeDragExit(); 948 } 949 } 950 951 mDeleteFolderOnDropCompleted = false; 952 mDragInProgress = false; 953 mItemAddedBackToSelfViaIcon = false; 954 mCurrentDragInfo = null; 955 mCurrentDragView = null; 956 mSuppressOnAdd = false; 957 958 // Reordering may have occured, and we need to save the new item locations. We do this once 959 // at the end to prevent unnecessary database operations. 960 updateItemLocationsInDatabaseBatch(); 961 962 // Use the item count to check for multi-page as the folder UI may not have 963 // been refreshed yet. 964 if (getItemCount() <= mContent.itemsPerPage()) { 965 // Show the animation, next time something is added to the folder. 966 mInfo.setOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION, false, mLauncher); 967 } 968 969 if (!isFlingToDelete) { 970 // Fling to delete already exits spring loaded mode after the animation finishes. 971 mLauncher.exitSpringLoadedDragModeDelayed(successfulDrop, 972 Launcher.EXIT_SPRINGLOADED_MODE_SHORT_TIMEOUT, null); 973 } 974 } 975 976 @Override 977 public void deferCompleteDropAfterUninstallActivity() { 978 mDeferDropAfterUninstall = true; 979 } 980 981 @Override 982 public void onDragObjectRemoved(boolean success) { 983 mDeferDropAfterUninstall = false; 984 mUninstallSuccessful = success; 985 if (mDeferredAction != null) { 986 mDeferredAction.run(); 987 } 988 } 989 990 @Override 991 public float getIntrinsicIconScaleFactor() { 992 return 1f; 993 } 994 995 @Override 996 public boolean supportsFlingToDelete() { 997 return true; 998 } 999 1000 @Override 1001 public boolean supportsAppInfoDropTarget() { 1002 return !FeatureFlags.LAUNCHER3_LEGACY_WORKSPACE_DND; 1003 } 1004 1005 @Override 1006 public boolean supportsDeleteDropTarget() { 1007 return true; 1008 } 1009 1010 @Override 1011 public void onFlingToDelete(DragObject d, PointF vec) { 1012 // Do nothing 1013 } 1014 1015 @Override 1016 public void onFlingToDeleteCompleted() { 1017 // Do nothing 1018 } 1019 1020 private void updateItemLocationsInDatabaseBatch() { 1021 ArrayList<View> list = getItemsInReadingOrder(); 1022 ArrayList<ItemInfo> items = new ArrayList<ItemInfo>(); 1023 for (int i = 0; i < list.size(); i++) { 1024 View v = list.get(i); 1025 ItemInfo info = (ItemInfo) v.getTag(); 1026 info.rank = i; 1027 items.add(info); 1028 } 1029 1030 LauncherModel.moveItemsInDatabase(mLauncher, items, mInfo.id, 0); 1031 } 1032 1033 public void notifyDrop() { 1034 if (mDragInProgress) { 1035 mItemAddedBackToSelfViaIcon = true; 1036 } 1037 } 1038 1039 public boolean isDropEnabled() { 1040 return true; 1041 } 1042 1043 public boolean isFull() { 1044 return mContent.isFull(); 1045 } 1046 1047 private void centerAboutIcon() { 1048 DragLayer.LayoutParams lp = (DragLayer.LayoutParams) getLayoutParams(); 1049 1050 DragLayer parent = (DragLayer) mLauncher.findViewById(R.id.drag_layer); 1051 int width = getPaddingLeft() + getPaddingRight() + mContent.getDesiredWidth(); 1052 int height = getFolderHeight(); 1053 1054 float scale = parent.getDescendantRectRelativeToSelf(mFolderIcon, sTempRect); 1055 1056 DeviceProfile grid = mLauncher.getDeviceProfile(); 1057 1058 int centerX = (int) (sTempRect.left + sTempRect.width() * scale / 2); 1059 int centerY = (int) (sTempRect.top + sTempRect.height() * scale / 2); 1060 int centeredLeft = centerX - width / 2; 1061 int centeredTop = centerY - height / 2; 1062 1063 // We need to bound the folder to the currently visible workspace area 1064 mLauncher.getWorkspace().getPageAreaRelativeToDragLayer(sTempRect); 1065 int left = Math.min(Math.max(sTempRect.left, centeredLeft), 1066 sTempRect.left + sTempRect.width() - width); 1067 int top = Math.min(Math.max(sTempRect.top, centeredTop), 1068 sTempRect.top + sTempRect.height() - height); 1069 1070 int distFromEdgeOfScreen = grid.getWorkspacePadding(isLayoutRtl()).left + getPaddingLeft(); 1071 1072 if (grid.isPhone && (grid.availableWidthPx - width) < 4 * distFromEdgeOfScreen) { 1073 // Center the folder if it is very close to being centered anyway, by virtue of 1074 // filling the majority of the viewport. ie. remove it from the uncanny valley 1075 // of centeredness. 1076 left = (grid.availableWidthPx - width) / 2; 1077 } else if (width >= sTempRect.width()) { 1078 // If the folder doesn't fit within the bounds, center it about the desired bounds 1079 left = sTempRect.left + (sTempRect.width() - width) / 2; 1080 } 1081 if (height >= sTempRect.height()) { 1082 top = sTempRect.top + (sTempRect.height() - height) / 2; 1083 } 1084 1085 int folderPivotX = width / 2 + (centeredLeft - left); 1086 int folderPivotY = height / 2 + (centeredTop - top); 1087 setPivotX(folderPivotX); 1088 setPivotY(folderPivotY); 1089 mFolderIconPivotX = (int) (mFolderIcon.getMeasuredWidth() * 1090 (1.0f * folderPivotX / width)); 1091 mFolderIconPivotY = (int) (mFolderIcon.getMeasuredHeight() * 1092 (1.0f * folderPivotY / height)); 1093 1094 lp.width = width; 1095 lp.height = height; 1096 lp.x = left; 1097 lp.y = top; 1098 } 1099 1100 public float getPivotXForIconAnimation() { 1101 return mFolderIconPivotX; 1102 } 1103 public float getPivotYForIconAnimation() { 1104 return mFolderIconPivotY; 1105 } 1106 1107 private int getContentAreaHeight() { 1108 DeviceProfile grid = mLauncher.getDeviceProfile(); 1109 Rect workspacePadding = grid.getWorkspacePadding(mContent.mIsRtl); 1110 int maxContentAreaHeight = grid.availableHeightPx - 1111 workspacePadding.top - workspacePadding.bottom - 1112 mFooterHeight; 1113 int height = Math.min(maxContentAreaHeight, 1114 mContent.getDesiredHeight()); 1115 return Math.max(height, MIN_CONTENT_DIMEN); 1116 } 1117 1118 private int getContentAreaWidth() { 1119 return Math.max(mContent.getDesiredWidth(), MIN_CONTENT_DIMEN); 1120 } 1121 1122 private int getFolderHeight() { 1123 return getFolderHeight(getContentAreaHeight()); 1124 } 1125 1126 private int getFolderHeight(int contentAreaHeight) { 1127 return getPaddingTop() + getPaddingBottom() + contentAreaHeight + mFooterHeight; 1128 } 1129 1130 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 1131 int contentWidth = getContentAreaWidth(); 1132 int contentHeight = getContentAreaHeight(); 1133 1134 int contentAreaWidthSpec = MeasureSpec.makeMeasureSpec(contentWidth, MeasureSpec.EXACTLY); 1135 int contentAreaHeightSpec = MeasureSpec.makeMeasureSpec(contentHeight, MeasureSpec.EXACTLY); 1136 1137 mContent.setFixedSize(contentWidth, contentHeight); 1138 mContentWrapper.measure(contentAreaWidthSpec, contentAreaHeightSpec); 1139 1140 if (mContent.getChildCount() > 0) { 1141 int cellIconGap = (mContent.getPageAt(0).getCellWidth() 1142 - mLauncher.getDeviceProfile().iconSizePx) / 2; 1143 mFooter.setPadding(mContent.getPaddingLeft() + cellIconGap, 1144 mFooter.getPaddingTop(), 1145 mContent.getPaddingRight() + cellIconGap, 1146 mFooter.getPaddingBottom()); 1147 } 1148 mFooter.measure(contentAreaWidthSpec, 1149 MeasureSpec.makeMeasureSpec(mFooterHeight, MeasureSpec.EXACTLY)); 1150 1151 int folderWidth = getPaddingLeft() + getPaddingRight() + contentWidth; 1152 int folderHeight = getFolderHeight(contentHeight); 1153 setMeasuredDimension(folderWidth, folderHeight); 1154 } 1155 1156 /** 1157 * Rearranges the children based on their rank. 1158 */ 1159 public void rearrangeChildren() { 1160 rearrangeChildren(-1); 1161 } 1162 1163 /** 1164 * Rearranges the children based on their rank. 1165 * @param itemCount if greater than the total children count, empty spaces are left at the end, 1166 * otherwise it is ignored. 1167 */ 1168 public void rearrangeChildren(int itemCount) { 1169 ArrayList<View> views = getItemsInReadingOrder(); 1170 mContent.arrangeChildren(views, Math.max(itemCount, views.size())); 1171 mItemsInvalidated = true; 1172 } 1173 1174 public int getItemCount() { 1175 return mContent.getItemCount(); 1176 } 1177 1178 @Thunk void replaceFolderWithFinalItem() { 1179 // Add the last remaining child to the workspace in place of the folder 1180 Runnable onCompleteRunnable = new Runnable() { 1181 @Override 1182 public void run() { 1183 int itemCount = mInfo.contents.size(); 1184 if (itemCount <= 1) { 1185 View newIcon = null; 1186 1187 if (itemCount == 1) { 1188 // Move the item from the folder to the workspace, in the position of the 1189 // folder 1190 CellLayout cellLayout = mLauncher.getCellLayout(mInfo.container, 1191 mInfo.screenId); 1192 ShortcutInfo finalItem = mInfo.contents.remove(0); 1193 newIcon = mLauncher.createShortcut(cellLayout, finalItem); 1194 LauncherModel.addOrMoveItemInDatabase(mLauncher, finalItem, mInfo.container, 1195 mInfo.screenId, mInfo.cellX, mInfo.cellY); 1196 } 1197 1198 // Remove the folder 1199 mLauncher.removeItem(mFolderIcon, mInfo, true /* deleteFromDb */); 1200 if (mFolderIcon instanceof DropTarget) { 1201 mDragController.removeDropTarget((DropTarget) mFolderIcon); 1202 } 1203 1204 if (newIcon != null) { 1205 // We add the child after removing the folder to prevent both from existing 1206 // at the same time in the CellLayout. We need to add the new item with 1207 // addInScreenFromBind() to ensure that hotseat items are placed correctly. 1208 mLauncher.getWorkspace().addInScreenFromBind(newIcon, mInfo.container, 1209 mInfo.screenId, mInfo.cellX, mInfo.cellY, mInfo.spanX, mInfo.spanY); 1210 1211 // Focus the newly created child 1212 newIcon.requestFocus(); 1213 } 1214 } 1215 } 1216 }; 1217 View finalChild = mContent.getLastItem(); 1218 if (finalChild != null) { 1219 mFolderIcon.performDestroyAnimation(finalChild, onCompleteRunnable); 1220 } else { 1221 onCompleteRunnable.run(); 1222 } 1223 mDestroyed = true; 1224 } 1225 1226 public boolean isDestroyed() { 1227 return mDestroyed; 1228 } 1229 1230 // This method keeps track of the first and last item in the folder for the purposes 1231 // of keyboard focus 1232 public void updateTextViewFocus() { 1233 final View firstChild = mContent.getFirstItem(); 1234 final View lastChild = mContent.getLastItem(); 1235 if (firstChild != null && lastChild != null) { 1236 mFolderName.setNextFocusDownId(lastChild.getId()); 1237 mFolderName.setNextFocusRightId(lastChild.getId()); 1238 mFolderName.setNextFocusLeftId(lastChild.getId()); 1239 mFolderName.setNextFocusUpId(lastChild.getId()); 1240 // Hitting TAB from the folder name wraps around to the first item on the current 1241 // folder page, and hitting SHIFT+TAB from that item wraps back to the folder name. 1242 mFolderName.setNextFocusForwardId(firstChild.getId()); 1243 // When clicking off the folder when editing the name, this Folder gains focus. When 1244 // pressing an arrow key from that state, give the focus to the first item. 1245 this.setNextFocusDownId(firstChild.getId()); 1246 this.setNextFocusRightId(firstChild.getId()); 1247 this.setNextFocusLeftId(firstChild.getId()); 1248 this.setNextFocusUpId(firstChild.getId()); 1249 // When pressing shift+tab in the above state, give the focus to the last item. 1250 setOnKeyListener(new OnKeyListener() { 1251 @Override 1252 public boolean onKey(View v, int keyCode, KeyEvent event) { 1253 boolean isShiftPlusTab = keyCode == KeyEvent.KEYCODE_TAB && 1254 event.hasModifiers(KeyEvent.META_SHIFT_ON); 1255 if (isShiftPlusTab && Folder.this.isFocused()) { 1256 return lastChild.requestFocus(); 1257 } 1258 return false; 1259 } 1260 }); 1261 } 1262 } 1263 1264 public void onDrop(DragObject d) { 1265 Runnable cleanUpRunnable = null; 1266 1267 // If we are coming from All Apps space, we defer removing the extra empty screen 1268 // until the folder closes 1269 if (d.dragSource != mLauncher.getWorkspace() && !(d.dragSource instanceof Folder)) { 1270 cleanUpRunnable = new Runnable() { 1271 @Override 1272 public void run() { 1273 mLauncher.exitSpringLoadedDragModeDelayed(true, 1274 Launcher.EXIT_SPRINGLOADED_MODE_SHORT_TIMEOUT, 1275 null); 1276 } 1277 }; 1278 } 1279 1280 // If the icon was dropped while the page was being scrolled, we need to compute 1281 // the target location again such that the icon is placed of the final page. 1282 if (!mContent.rankOnCurrentPage(mEmptyCellRank)) { 1283 // Reorder again. 1284 mTargetRank = getTargetRank(d, null); 1285 1286 // Rearrange items immediately. 1287 mReorderAlarmListener.onAlarm(mReorderAlarm); 1288 1289 mOnScrollHintAlarm.cancelAlarm(); 1290 mScrollPauseAlarm.cancelAlarm(); 1291 } 1292 mContent.completePendingPageChanges(); 1293 1294 View currentDragView; 1295 ShortcutInfo si = mCurrentDragInfo; 1296 if (mIsExternalDrag) { 1297 currentDragView = mContent.createAndAddViewForRank(si, mEmptyCellRank); 1298 // Actually move the item in the database if it was an external drag. Call this 1299 // before creating the view, so that ShortcutInfo is updated appropriately. 1300 LauncherModel.addOrMoveItemInDatabase( 1301 mLauncher, si, mInfo.id, 0, si.cellX, si.cellY); 1302 1303 // We only need to update the locations if it doesn't get handled in #onDropCompleted. 1304 if (d.dragSource != this) { 1305 updateItemLocationsInDatabaseBatch(); 1306 } 1307 mIsExternalDrag = false; 1308 } else { 1309 currentDragView = mCurrentDragView; 1310 mContent.addViewForRank(currentDragView, si, mEmptyCellRank); 1311 } 1312 1313 if (d.dragView.hasDrawn()) { 1314 1315 // Temporarily reset the scale such that the animation target gets calculated correctly. 1316 float scaleX = getScaleX(); 1317 float scaleY = getScaleY(); 1318 setScaleX(1.0f); 1319 setScaleY(1.0f); 1320 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, currentDragView, 1321 cleanUpRunnable, null); 1322 setScaleX(scaleX); 1323 setScaleY(scaleY); 1324 } else { 1325 d.deferDragViewCleanupPostAnimation = false; 1326 currentDragView.setVisibility(VISIBLE); 1327 } 1328 mItemsInvalidated = true; 1329 rearrangeChildren(); 1330 1331 // Temporarily suppress the listener, as we did all the work already here. 1332 mSuppressOnAdd = true; 1333 mInfo.add(si); 1334 mSuppressOnAdd = false; 1335 // Clear the drag info, as it is no longer being dragged. 1336 mCurrentDragInfo = null; 1337 mDragInProgress = false; 1338 1339 if (mContent.getPageCount() > 1) { 1340 // The animation has already been shown while opening the folder. 1341 mInfo.setOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION, true, mLauncher); 1342 } 1343 } 1344 1345 // This is used so the item doesn't immediately appear in the folder when added. In one case 1346 // we need to create the illusion that the item isn't added back to the folder yet, to 1347 // to correspond to the animation of the icon back into the folder. This is 1348 public void hideItem(ShortcutInfo info) { 1349 View v = getViewForInfo(info); 1350 v.setVisibility(INVISIBLE); 1351 } 1352 public void showItem(ShortcutInfo info) { 1353 View v = getViewForInfo(info); 1354 v.setVisibility(VISIBLE); 1355 } 1356 1357 @Override 1358 public void onAdd(ShortcutInfo item) { 1359 // If the item was dropped onto this open folder, we have done the work associated 1360 // with adding the item to the folder, as indicated by mSuppressOnAdd being set 1361 if (mSuppressOnAdd) return; 1362 mContent.createAndAddViewForRank(item, mContent.allocateRankForNewItem(item)); 1363 mItemsInvalidated = true; 1364 LauncherModel.addOrMoveItemInDatabase( 1365 mLauncher, item, mInfo.id, 0, item.cellX, item.cellY); 1366 } 1367 1368 public void onRemove(ShortcutInfo item) { 1369 mItemsInvalidated = true; 1370 // If this item is being dragged from this open folder, we have already handled 1371 // the work associated with removing the item, so we don't have to do anything here. 1372 if (item == mCurrentDragInfo) return; 1373 View v = getViewForInfo(item); 1374 mContent.removeItem(v); 1375 if (mState == STATE_ANIMATING) { 1376 mRearrangeOnClose = true; 1377 } else { 1378 rearrangeChildren(); 1379 } 1380 if (getItemCount() <= 1) { 1381 if (mInfo.opened) { 1382 mLauncher.closeFolder(this, true); 1383 } else { 1384 replaceFolderWithFinalItem(); 1385 } 1386 } 1387 } 1388 1389 private View getViewForInfo(final ShortcutInfo item) { 1390 return mContent.iterateOverItems(new ItemOperator() { 1391 1392 @Override 1393 public boolean evaluate(ItemInfo info, View view, View parent) { 1394 return info == item; 1395 } 1396 }); 1397 } 1398 1399 public void onItemsChanged() { 1400 updateTextViewFocus(); 1401 } 1402 1403 public void onTitleChanged(CharSequence title) { 1404 } 1405 1406 public ArrayList<View> getItemsInReadingOrder() { 1407 if (mItemsInvalidated) { 1408 mItemsInReadingOrder.clear(); 1409 mContent.iterateOverItems(new ItemOperator() { 1410 1411 @Override 1412 public boolean evaluate(ItemInfo info, View view, View parent) { 1413 mItemsInReadingOrder.add(view); 1414 return false; 1415 } 1416 }); 1417 mItemsInvalidated = false; 1418 } 1419 return mItemsInReadingOrder; 1420 } 1421 1422 public void onFocusChange(View v, boolean hasFocus) { 1423 if (v == mFolderName) { 1424 if (hasFocus) { 1425 startEditingFolderName(); 1426 } else { 1427 dismissEditingName(); 1428 } 1429 } 1430 } 1431 1432 @Override 1433 public void getHitRectRelativeToDragLayer(Rect outRect) { 1434 getHitRect(outRect); 1435 outRect.left -= mScrollAreaOffset; 1436 outRect.right += mScrollAreaOffset; 1437 } 1438 1439 @Override 1440 public void fillInLaunchSourceData(View v, Bundle sourceData) { 1441 // Fill in from the folder icon's launch source provider first 1442 Stats.LaunchSourceUtils.populateSourceDataFromAncestorProvider(mFolderIcon, sourceData); 1443 sourceData.putString(Stats.SOURCE_EXTRA_SUB_CONTAINER, Stats.SUB_CONTAINER_FOLDER); 1444 sourceData.putInt(Stats.SOURCE_EXTRA_SUB_CONTAINER_PAGE, mContent.getCurrentPage()); 1445 } 1446 1447 private class OnScrollHintListener implements OnAlarmListener { 1448 1449 private final DragObject mDragObject; 1450 1451 OnScrollHintListener(DragObject object) { 1452 mDragObject = object; 1453 } 1454 1455 /** 1456 * Scroll hint has been shown long enough. Now scroll to appropriate page. 1457 */ 1458 @Override 1459 public void onAlarm(Alarm alarm) { 1460 if (mCurrentScrollDir == DragController.SCROLL_LEFT) { 1461 mContent.scrollLeft(); 1462 mScrollHintDir = DragController.SCROLL_NONE; 1463 } else if (mCurrentScrollDir == DragController.SCROLL_RIGHT) { 1464 mContent.scrollRight(); 1465 mScrollHintDir = DragController.SCROLL_NONE; 1466 } else { 1467 // This should not happen 1468 return; 1469 } 1470 mCurrentScrollDir = DragController.SCROLL_NONE; 1471 1472 // Pause drag event until the scrolling is finished 1473 mScrollPauseAlarm.setOnAlarmListener(new OnScrollFinishedListener(mDragObject)); 1474 mScrollPauseAlarm.setAlarm(DragController.RESCROLL_DELAY); 1475 } 1476 } 1477 1478 private class OnScrollFinishedListener implements OnAlarmListener { 1479 1480 private final DragObject mDragObject; 1481 1482 OnScrollFinishedListener(DragObject object) { 1483 mDragObject = object; 1484 } 1485 1486 /** 1487 * Page scroll is complete. 1488 */ 1489 @Override 1490 public void onAlarm(Alarm alarm) { 1491 // Reorder immediately on page change. 1492 onDragOver(mDragObject, 1); 1493 } 1494 } 1495 1496 // Compares item position based on rank and position giving priority to the rank. 1497 public static final Comparator<ItemInfo> ITEM_POS_COMPARATOR = new Comparator<ItemInfo>() { 1498 1499 @Override 1500 public int compare(ItemInfo lhs, ItemInfo rhs) { 1501 if (lhs.rank != rhs.rank) { 1502 return lhs.rank - rhs.rank; 1503 } else if (lhs.cellY != rhs.cellY) { 1504 return lhs.cellY - rhs.cellY; 1505 } else { 1506 return lhs.cellX - rhs.cellX; 1507 } 1508 } 1509 }; 1510} 1511