1 /* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.launcher2; 18 19 import android.animation.AnimatorSet; 20 import android.animation.ObjectAnimator; 21 import android.animation.ValueAnimator; 22 import android.appwidget.AppWidgetManager; 23 import android.appwidget.AppWidgetProviderInfo; 24 import android.content.ComponentName; 25 import android.content.Context; 26 import android.content.Intent; 27 import android.content.pm.PackageManager; 28 import android.content.pm.ResolveInfo; 29 import android.content.res.Configuration; 30 import android.content.res.Resources; 31 import android.content.res.TypedArray; 32 import android.graphics.Bitmap; 33 import android.graphics.Bitmap.Config; 34 import android.graphics.Canvas; 35 import android.graphics.MaskFilter; 36 import android.graphics.Paint; 37 import android.graphics.PorterDuff; 38 import android.graphics.Rect; 39 import android.graphics.TableMaskFilter; 40 import android.graphics.drawable.Drawable; 41 import android.os.AsyncTask; 42 import android.os.Process; 43 import android.util.AttributeSet; 44 import android.util.Log; 45 import android.view.Gravity; 46 import android.view.KeyEvent; 47 import android.view.LayoutInflater; 48 import android.view.MotionEvent; 49 import android.view.View; 50 import android.view.ViewConfiguration; 51 import android.view.ViewGroup; 52 import android.view.animation.AccelerateInterpolator; 53 import android.view.animation.DecelerateInterpolator; 54 import android.widget.GridLayout; 55 import android.widget.ImageView; 56 import android.widget.Toast; 57 58 import com.android.launcher.R; 59 import com.android.launcher2.DropTarget.DragObject; 60 61 import java.util.ArrayList; 62 import java.util.Collections; 63 import java.util.Iterator; 64 import java.util.List; 65 66 /** 67 * A simple callback interface which also provides the results of the task. 68 */ 69 interface AsyncTaskCallback { 70 void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data); 71 } 72 73 /** 74 * The data needed to perform either of the custom AsyncTasks. 75 */ 76 class AsyncTaskPageData { 77 enum Type { 78 LoadWidgetPreviewData, 79 LoadHolographicIconsData 80 } 81 82 AsyncTaskPageData(int p, ArrayList<Object> l, ArrayList<Bitmap> si, AsyncTaskCallback bgR, 83 AsyncTaskCallback postR) { 84 page = p; 85 items = l; 86 sourceImages = si; 87 generatedImages = new ArrayList<Bitmap>(); 88 maxImageWidth = maxImageHeight = -1; 89 doInBackgroundCallback = bgR; 90 postExecuteCallback = postR; 91 } 92 AsyncTaskPageData(int p, ArrayList<Object> l, int cw, int ch, AsyncTaskCallback bgR, 93 AsyncTaskCallback postR) { 94 page = p; 95 items = l; 96 generatedImages = new ArrayList<Bitmap>(); 97 maxImageWidth = cw; 98 maxImageHeight = ch; 99 doInBackgroundCallback = bgR; 100 postExecuteCallback = postR; 101 } 102 void cleanup(boolean cancelled) { 103 // Clean up any references to source/generated bitmaps 104 if (sourceImages != null) { 105 if (cancelled) { 106 for (Bitmap b : sourceImages) { 107 b.recycle(); 108 } 109 } 110 sourceImages.clear(); 111 } 112 if (generatedImages != null) { 113 if (cancelled) { 114 for (Bitmap b : generatedImages) { 115 b.recycle(); 116 } 117 } 118 generatedImages.clear(); 119 } 120 } 121 int page; 122 ArrayList<Object> items; 123 ArrayList<Bitmap> sourceImages; 124 ArrayList<Bitmap> generatedImages; 125 int maxImageWidth; 126 int maxImageHeight; 127 AsyncTaskCallback doInBackgroundCallback; 128 AsyncTaskCallback postExecuteCallback; 129 } 130 131 /** 132 * A generic template for an async task used in AppsCustomize. 133 */ 134 class AppsCustomizeAsyncTask extends AsyncTask<AsyncTaskPageData, Void, AsyncTaskPageData> { 135 AppsCustomizeAsyncTask(int p, AsyncTaskPageData.Type ty) { 136 page = p; 137 threadPriority = Process.THREAD_PRIORITY_DEFAULT; 138 dataType = ty; 139 } 140 @Override 141 protected AsyncTaskPageData doInBackground(AsyncTaskPageData... params) { 142 if (params.length != 1) return null; 143 // Load each of the widget previews in the background 144 params[0].doInBackgroundCallback.run(this, params[0]); 145 return params[0]; 146 } 147 @Override 148 protected void onPostExecute(AsyncTaskPageData result) { 149 // All the widget previews are loaded, so we can just callback to inflate the page 150 result.postExecuteCallback.run(this, result); 151 } 152 153 void setThreadPriority(int p) { 154 threadPriority = p; 155 } 156 void syncThreadPriority() { 157 Process.setThreadPriority(threadPriority); 158 } 159 160 // The page that this async task is associated with 161 AsyncTaskPageData.Type dataType; 162 int page; 163 int threadPriority; 164 } 165 166 /** 167 * The Apps/Customize page that displays all the applications, widgets, and shortcuts. 168 */ 169 public class AppsCustomizePagedView extends PagedViewWithDraggableItems implements 170 AllAppsView, View.OnClickListener, View.OnKeyListener, DragSource { 171 static final String LOG_TAG = "AppsCustomizePagedView"; 172 173 /** 174 * The different content types that this paged view can show. 175 */ 176 public enum ContentType { 177 Applications, 178 Widgets 179 } 180 181 // Refs 182 private Launcher mLauncher; 183 private DragController mDragController; 184 private final LayoutInflater mLayoutInflater; 185 private final PackageManager mPackageManager; 186 187 // Save and Restore 188 private int mSaveInstanceStateItemIndex = -1; 189 190 // Content 191 private ArrayList<ApplicationInfo> mApps; 192 private ArrayList<Object> mWidgets; 193 194 // Cling 195 private boolean mHasShownAllAppsCling; 196 private int mClingFocusedX; 197 private int mClingFocusedY; 198 199 // Caching 200 private Canvas mCanvas; 201 private Drawable mDefaultWidgetBackground; 202 private IconCache mIconCache; 203 private int mDragViewMultiplyColor; 204 205 // Dimens 206 private int mContentWidth; 207 private int mAppIconSize; 208 private int mMaxAppCellCountX, mMaxAppCellCountY; 209 private int mWidgetCountX, mWidgetCountY; 210 private int mWidgetWidthGap, mWidgetHeightGap; 211 private final int mWidgetPreviewIconPaddedDimension; 212 private final float sWidgetPreviewIconPaddingPercentage = 0.25f; 213 private PagedViewCellLayout mWidgetSpacingLayout; 214 private int mNumAppsPages; 215 private int mNumWidgetPages; 216 217 // Relating to the scroll and overscroll effects 218 Workspace.ZInterpolator mZInterpolator = new Workspace.ZInterpolator(0.5f); 219 private static float CAMERA_DISTANCE = 6500; 220 private static float TRANSITION_SCALE_FACTOR = 0.74f; 221 private static float TRANSITION_PIVOT = 0.65f; 222 private static float TRANSITION_MAX_ROTATION = 22; 223 private static final boolean PERFORM_OVERSCROLL_ROTATION = true; 224 private AccelerateInterpolator mAlphaInterpolator = new AccelerateInterpolator(0.9f); 225 private DecelerateInterpolator mLeftScreenAlphaInterpolator = new DecelerateInterpolator(4); 226 227 // Previews & outlines 228 ArrayList<AppsCustomizeAsyncTask> mRunningTasks; 229 private HolographicOutlineHelper mHolographicOutlineHelper; 230 private static final int sPageSleepDelay = 200; 231 232 public AppsCustomizePagedView(Context context, AttributeSet attrs) { 233 super(context, attrs); 234 mLayoutInflater = LayoutInflater.from(context); 235 mPackageManager = context.getPackageManager(); 236 mApps = new ArrayList<ApplicationInfo>(); 237 mWidgets = new ArrayList<Object>(); 238 mIconCache = ((LauncherApplication) context.getApplicationContext()).getIconCache(); 239 mHolographicOutlineHelper = new HolographicOutlineHelper(); 240 mCanvas = new Canvas(); 241 mRunningTasks = new ArrayList<AppsCustomizeAsyncTask>(); 242 243 // Save the default widget preview background 244 Resources resources = context.getResources(); 245 mDefaultWidgetBackground = resources.getDrawable(R.drawable.default_widget_preview_holo); 246 mAppIconSize = resources.getDimensionPixelSize(R.dimen.app_icon_size); 247 mDragViewMultiplyColor = resources.getColor(R.color.drag_view_multiply_color); 248 249 TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.AppsCustomizePagedView, 0, 0); 250 mMaxAppCellCountX = a.getInt(R.styleable.AppsCustomizePagedView_maxAppCellCountX, -1); 251 mMaxAppCellCountY = a.getInt(R.styleable.AppsCustomizePagedView_maxAppCellCountY, -1); 252 mWidgetWidthGap = 253 a.getDimensionPixelSize(R.styleable.AppsCustomizePagedView_widgetCellWidthGap, 0); 254 mWidgetHeightGap = 255 a.getDimensionPixelSize(R.styleable.AppsCustomizePagedView_widgetCellHeightGap, 0); 256 mWidgetCountX = a.getInt(R.styleable.AppsCustomizePagedView_widgetCountX, 2); 257 mWidgetCountY = a.getInt(R.styleable.AppsCustomizePagedView_widgetCountY, 2); 258 mClingFocusedX = a.getInt(R.styleable.AppsCustomizePagedView_clingFocusedX, 0); 259 mClingFocusedY = a.getInt(R.styleable.AppsCustomizePagedView_clingFocusedY, 0); 260 a.recycle(); 261 mWidgetSpacingLayout = new PagedViewCellLayout(getContext()); 262 263 // The padding on the non-matched dimension for the default widget preview icons 264 // (top + bottom) 265 mWidgetPreviewIconPaddedDimension = 266 (int) (mAppIconSize * (1 + (2 * sWidgetPreviewIconPaddingPercentage))); 267 mFadeInAdjacentScreens = false; 268 } 269 270 @Override 271 protected void init() { 272 super.init(); 273 mCenterPagesVertically = false; 274 275 Context context = getContext(); 276 Resources r = context.getResources(); 277 setDragSlopeThreshold(r.getInteger(R.integer.config_appsCustomizeDragSlopeThreshold)/100f); 278 } 279 280 @Override 281 protected void onUnhandledTap(MotionEvent ev) { 282 if (LauncherApplication.isScreenLarge()) { 283 // Dismiss AppsCustomize if we tap 284 mLauncher.showWorkspace(true); 285 } 286 } 287 288 /** Returns the item index of the center item on this page so that we can restore to this 289 * item index when we rotate. */ 290 private int getMiddleComponentIndexOnCurrentPage() { 291 int i = -1; 292 if (getPageCount() > 0) { 293 int currentPage = getCurrentPage(); 294 if (currentPage < mNumAppsPages) { 295 PagedViewCellLayout layout = (PagedViewCellLayout) getPageAt(currentPage); 296 PagedViewCellLayoutChildren childrenLayout = layout.getChildrenLayout(); 297 int numItemsPerPage = mCellCountX * mCellCountY; 298 int childCount = childrenLayout.getChildCount(); 299 if (childCount > 0) { 300 i = (currentPage * numItemsPerPage) + (childCount / 2); 301 } 302 } else { 303 int numApps = mApps.size(); 304 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(currentPage); 305 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 306 int childCount = layout.getChildCount(); 307 if (childCount > 0) { 308 i = numApps + 309 ((currentPage - mNumAppsPages) * numItemsPerPage) + (childCount / 2); 310 } 311 } 312 } 313 return i; 314 } 315 316 /** Get the index of the item to restore to if we need to restore the current page. */ 317 int getSaveInstanceStateIndex() { 318 if (mSaveInstanceStateItemIndex == -1) { 319 mSaveInstanceStateItemIndex = getMiddleComponentIndexOnCurrentPage(); 320 } 321 return mSaveInstanceStateItemIndex; 322 } 323 324 /** Returns the page in the current orientation which is expected to contain the specified 325 * item index. */ 326 int getPageForComponent(int index) { 327 if (index < 0) return 0; 328 329 if (index < mApps.size()) { 330 int numItemsPerPage = mCellCountX * mCellCountY; 331 return (index / numItemsPerPage); 332 } else { 333 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 334 return mNumAppsPages + ((index - mApps.size()) / numItemsPerPage); 335 } 336 } 337 338 /** 339 * This differs from isDataReady as this is the test done if isDataReady is not set. 340 */ 341 private boolean testDataReady() { 342 // We only do this test once, and we default to the Applications page, so we only really 343 // have to wait for there to be apps. 344 // TODO: What if one of them is validly empty 345 return !mApps.isEmpty() && !mWidgets.isEmpty(); 346 } 347 348 /** Restores the page for an item at the specified index */ 349 void restorePageForIndex(int index) { 350 if (index < 0) return; 351 mSaveInstanceStateItemIndex = index; 352 } 353 354 private void updatePageCounts() { 355 mNumWidgetPages = (int) Math.ceil(mWidgets.size() / 356 (float) (mWidgetCountX * mWidgetCountY)); 357 mNumAppsPages = (int) Math.ceil((float) mApps.size() / (mCellCountX * mCellCountY)); 358 } 359 360 protected void onDataReady(int width, int height) { 361 // Note that we transpose the counts in portrait so that we get a similar layout 362 boolean isLandscape = getResources().getConfiguration().orientation == 363 Configuration.ORIENTATION_LANDSCAPE; 364 int maxCellCountX = Integer.MAX_VALUE; 365 int maxCellCountY = Integer.MAX_VALUE; 366 if (LauncherApplication.isScreenLarge()) { 367 maxCellCountX = (isLandscape ? LauncherModel.getCellCountX() : 368 LauncherModel.getCellCountY()); 369 maxCellCountY = (isLandscape ? LauncherModel.getCellCountY() : 370 LauncherModel.getCellCountX()); 371 } 372 if (mMaxAppCellCountX > -1) { 373 maxCellCountX = Math.min(maxCellCountX, mMaxAppCellCountX); 374 } 375 if (mMaxAppCellCountY > -1) { 376 maxCellCountY = Math.min(maxCellCountY, mMaxAppCellCountY); 377 } 378 379 // Now that the data is ready, we can calculate the content width, the number of cells to 380 // use for each page 381 mWidgetSpacingLayout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 382 mWidgetSpacingLayout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 383 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 384 mWidgetSpacingLayout.calculateCellCount(width, height, maxCellCountX, maxCellCountY); 385 mCellCountX = mWidgetSpacingLayout.getCellCountX(); 386 mCellCountY = mWidgetSpacingLayout.getCellCountY(); 387 updatePageCounts(); 388 389 // Force a measure to update recalculate the gaps 390 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 391 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 392 mWidgetSpacingLayout.measure(widthSpec, heightSpec); 393 mContentWidth = mWidgetSpacingLayout.getContentWidth(); 394 395 AppsCustomizeTabHost host = (AppsCustomizeTabHost) getTabHost(); 396 final boolean hostIsTransitioning = host.isTransitioning(); 397 398 // Restore the page 399 int page = getPageForComponent(mSaveInstanceStateItemIndex); 400 invalidatePageData(Math.max(0, page), hostIsTransitioning); 401 402 // Show All Apps cling if we are finished transitioning, otherwise, we will try again when 403 // the transition completes in AppsCustomizeTabHost (otherwise the wrong offsets will be 404 // returned while animating) 405 if (!hostIsTransitioning) { 406 post(new Runnable() { 407 @Override 408 public void run() { 409 showAllAppsCling(); 410 } 411 }); 412 } 413 } 414 415 void showAllAppsCling() { 416 if (!mHasShownAllAppsCling && isDataReady() && testDataReady()) { 417 mHasShownAllAppsCling = true; 418 // Calculate the position for the cling punch through 419 int[] offset = new int[2]; 420 int[] pos = mWidgetSpacingLayout.estimateCellPosition(mClingFocusedX, mClingFocusedY); 421 mLauncher.getDragLayer().getLocationInDragLayer(this, offset); 422 // PagedViews are centered horizontally but top aligned 423 pos[0] += (getMeasuredWidth() - mWidgetSpacingLayout.getMeasuredWidth()) / 2 + 424 offset[0]; 425 pos[1] += offset[1]; 426 mLauncher.showFirstRunAllAppsCling(pos); 427 } 428 } 429 430 @Override 431 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 432 int width = MeasureSpec.getSize(widthMeasureSpec); 433 int height = MeasureSpec.getSize(heightMeasureSpec); 434 if (!isDataReady()) { 435 if (testDataReady()) { 436 setDataIsReady(); 437 setMeasuredDimension(width, height); 438 onDataReady(width, height); 439 } 440 } 441 442 super.onMeasure(widthMeasureSpec, heightMeasureSpec); 443 } 444 445 public void onPackagesUpdated() { 446 // TODO: this isn't ideal, but we actually need to delay here. This call is triggered 447 // by a broadcast receiver, and in order for it to work correctly, we need to know that 448 // the AppWidgetService has already received and processed the same broadcast. Since there 449 // is no guarantee about ordering of broadcast receipt, we just delay here. Ideally, 450 // we should have a more precise way of ensuring the AppWidgetService is up to date. 451 postDelayed(new Runnable() { 452 public void run() { 453 updatePackages(); 454 } 455 }, 500); 456 } 457 458 public void updatePackages() { 459 // Get the list of widgets and shortcuts 460 boolean wasEmpty = mWidgets.isEmpty(); 461 mWidgets.clear(); 462 List<AppWidgetProviderInfo> widgets = 463 AppWidgetManager.getInstance(mLauncher).getInstalledProviders(); 464 Intent shortcutsIntent = new Intent(Intent.ACTION_CREATE_SHORTCUT); 465 List<ResolveInfo> shortcuts = mPackageManager.queryIntentActivities(shortcutsIntent, 0); 466 for (AppWidgetProviderInfo widget : widgets) { 467 if (widget.minWidth > 0 && widget.minHeight > 0) { 468 mWidgets.add(widget); 469 } else { 470 Log.e(LOG_TAG, "Widget " + widget.provider + " has invalid dimensions (" + 471 widget.minWidth + ", " + widget.minHeight + ")"); 472 } 473 } 474 mWidgets.addAll(shortcuts); 475 Collections.sort(mWidgets, 476 new LauncherModel.WidgetAndShortcutNameComparator(mPackageManager)); 477 updatePageCounts(); 478 479 if (wasEmpty) { 480 // The next layout pass will trigger data-ready if both widgets and apps are set, so request 481 // a layout to do this test and invalidate the page data when ready. 482 if (testDataReady()) requestLayout(); 483 } else { 484 cancelAllTasks(); 485 invalidatePageData(); 486 } 487 } 488 489 @Override 490 public void onClick(View v) { 491 // When we have exited all apps or are in transition, disregard clicks 492 if (!mLauncher.isAllAppsCustomizeOpen() || 493 mLauncher.getWorkspace().isSwitchingState()) return; 494 495 if (v instanceof PagedViewIcon) { 496 // Animate some feedback to the click 497 final ApplicationInfo appInfo = (ApplicationInfo) v.getTag(); 498 animateClickFeedback(v, new Runnable() { 499 @Override 500 public void run() { 501 mLauncher.startActivitySafely(appInfo.intent, appInfo); 502 } 503 }); 504 } else if (v instanceof PagedViewWidget) { 505 // Let the user know that they have to long press to add a widget 506 Toast.makeText(getContext(), R.string.long_press_widget_to_add, 507 Toast.LENGTH_SHORT).show(); 508 509 // Create a little animation to show that the widget can move 510 float offsetY = getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 511 final ImageView p = (ImageView) v.findViewById(R.id.widget_preview); 512 AnimatorSet bounce = new AnimatorSet(); 513 ValueAnimator tyuAnim = ObjectAnimator.ofFloat(p, "translationY", offsetY); 514 tyuAnim.setDuration(125); 515 ValueAnimator tydAnim = ObjectAnimator.ofFloat(p, "translationY", 0f); 516 tydAnim.setDuration(100); 517 bounce.play(tyuAnim).before(tydAnim); 518 bounce.setInterpolator(new AccelerateInterpolator()); 519 bounce.start(); 520 } 521 } 522 523 public boolean onKey(View v, int keyCode, KeyEvent event) { 524 return FocusHelper.handleAppsCustomizeKeyEvent(v, keyCode, event); 525 } 526 527 /* 528 * PagedViewWithDraggableItems implementation 529 */ 530 @Override 531 protected void determineDraggingStart(android.view.MotionEvent ev) { 532 // Disable dragging by pulling an app down for now. 533 } 534 535 private void beginDraggingApplication(View v) { 536 mLauncher.getWorkspace().onDragStartedWithItem(v); 537 mLauncher.getWorkspace().beginDragShared(v, this); 538 } 539 540 private void beginDraggingWidget(View v) { 541 // Get the widget preview as the drag representation 542 ImageView image = (ImageView) v.findViewById(R.id.widget_preview); 543 PendingAddItemInfo createItemInfo = (PendingAddItemInfo) v.getTag(); 544 545 // Compose the drag image 546 Bitmap preview; 547 Bitmap outline; 548 if (createItemInfo instanceof PendingAddWidgetInfo) { 549 PendingAddWidgetInfo createWidgetInfo = (PendingAddWidgetInfo) createItemInfo; 550 int[] spanXY = mLauncher.getSpanForWidget(createWidgetInfo, null); 551 createItemInfo.spanX = spanXY[0]; 552 createItemInfo.spanY = spanXY[1]; 553 554 int[] maxSize = mLauncher.getWorkspace().estimateItemSize(spanXY[0], spanXY[1], 555 createWidgetInfo, true); 556 preview = getWidgetPreview(createWidgetInfo.componentName, createWidgetInfo.previewImage, 557 createWidgetInfo.icon, spanXY[0], spanXY[1], maxSize[0], maxSize[1]); 558 } else { 559 // Workaround for the fact that we don't keep the original ResolveInfo associated with 560 // the shortcut around. To get the icon, we just render the preview image (which has 561 // the shortcut icon) to a new drag bitmap that clips the non-icon space. 562 preview = Bitmap.createBitmap(mWidgetPreviewIconPaddedDimension, 563 mWidgetPreviewIconPaddedDimension, Bitmap.Config.ARGB_8888); 564 Drawable d = image.getDrawable(); 565 mCanvas.setBitmap(preview); 566 d.draw(mCanvas); 567 mCanvas.setBitmap(null); 568 createItemInfo.spanX = createItemInfo.spanY = 1; 569 } 570 571 // We use a custom alpha clip table for the default widget previews 572 Paint alphaClipPaint = null; 573 if (createItemInfo instanceof PendingAddWidgetInfo) { 574 if (((PendingAddWidgetInfo) createItemInfo).previewImage != 0) { 575 MaskFilter alphaClipTable = TableMaskFilter.CreateClipTable(0, 255); 576 alphaClipPaint = new Paint(); 577 alphaClipPaint.setMaskFilter(alphaClipTable); 578 } 579 } 580 581 // Save the preview for the outline generation, then dim the preview 582 outline = Bitmap.createScaledBitmap(preview, preview.getWidth(), preview.getHeight(), 583 false); 584 mCanvas.setBitmap(preview); 585 mCanvas.drawColor(mDragViewMultiplyColor, PorterDuff.Mode.MULTIPLY); 586 mCanvas.setBitmap(null); 587 588 // Start the drag 589 alphaClipPaint = null; 590 mLauncher.lockScreenOrientationOnLargeUI(); 591 mLauncher.getWorkspace().onDragStartedWithItem(createItemInfo, outline, alphaClipPaint); 592 mDragController.startDrag(image, preview, this, createItemInfo, 593 DragController.DRAG_ACTION_COPY, null); 594 outline.recycle(); 595 preview.recycle(); 596 } 597 @Override 598 protected boolean beginDragging(View v) { 599 // Dismiss the cling 600 mLauncher.dismissAllAppsCling(null); 601 602 if (!super.beginDragging(v)) return false; 603 604 // Go into spring loaded mode (must happen before we startDrag()) 605 mLauncher.enterSpringLoadedDragMode(); 606 607 if (v instanceof PagedViewIcon) { 608 beginDraggingApplication(v); 609 } else if (v instanceof PagedViewWidget) { 610 beginDraggingWidget(v); 611 } 612 return true; 613 } 614 private void endDragging(View target, boolean success) { 615 mLauncher.getWorkspace().onDragStopped(success); 616 if (!success || (target != mLauncher.getWorkspace() && 617 !(target instanceof DeleteDropTarget))) { 618 // Exit spring loaded mode if we have not successfully dropped or have not handled the 619 // drop in Workspace 620 mLauncher.exitSpringLoadedDragMode(); 621 } 622 mLauncher.unlockScreenOrientationOnLargeUI(); 623 624 } 625 626 @Override 627 public void onDropCompleted(View target, DragObject d, boolean success) { 628 endDragging(target, success); 629 630 // Display an error message if the drag failed due to there not being enough space on the 631 // target layout we were dropping on. 632 if (!success) { 633 boolean showOutOfSpaceMessage = false; 634 if (target instanceof Workspace) { 635 int currentScreen = mLauncher.getCurrentWorkspaceScreen(); 636 Workspace workspace = (Workspace) target; 637 CellLayout layout = (CellLayout) workspace.getChildAt(currentScreen); 638 ItemInfo itemInfo = (ItemInfo) d.dragInfo; 639 if (layout != null) { 640 layout.calculateSpans(itemInfo); 641 showOutOfSpaceMessage = 642 !layout.findCellForSpan(null, itemInfo.spanX, itemInfo.spanY); 643 } 644 } 645 if (showOutOfSpaceMessage) { 646 mLauncher.showOutOfSpaceMessage(); 647 } 648 } 649 } 650 651 @Override 652 protected void onDetachedFromWindow() { 653 super.onDetachedFromWindow(); 654 cancelAllTasks(); 655 } 656 657 public void clearAllWidgetPages() { 658 cancelAllTasks(); 659 int count = getChildCount(); 660 for (int i = 0; i < count; i++) { 661 View v = getPageAt(i); 662 if (v instanceof PagedViewGridLayout) { 663 ((PagedViewGridLayout) v).removeAllViewsOnPage(); 664 mDirtyPageContent.set(i, true); 665 } 666 } 667 } 668 669 private void cancelAllTasks() { 670 // Clean up all the async tasks 671 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 672 while (iter.hasNext()) { 673 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 674 task.cancel(false); 675 iter.remove(); 676 } 677 } 678 679 public void setContentType(ContentType type) { 680 if (type == ContentType.Widgets) { 681 invalidatePageData(mNumAppsPages, true); 682 } else if (type == ContentType.Applications) { 683 invalidatePageData(0, true); 684 } 685 } 686 687 protected void snapToPage(int whichPage, int delta, int duration) { 688 super.snapToPage(whichPage, delta, duration); 689 updateCurrentTab(whichPage); 690 691 // Update the thread priorities given the direction lookahead 692 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 693 while (iter.hasNext()) { 694 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 695 int pageIndex = task.page + mNumAppsPages; 696 if ((mNextPage > mCurrentPage && pageIndex >= mCurrentPage) || 697 (mNextPage < mCurrentPage && pageIndex <= mCurrentPage)) { 698 task.setThreadPriority(getThreadPriorityForPage(pageIndex)); 699 } else { 700 task.setThreadPriority(Process.THREAD_PRIORITY_LOWEST); 701 } 702 } 703 } 704 705 private void updateCurrentTab(int currentPage) { 706 AppsCustomizeTabHost tabHost = getTabHost(); 707 if (tabHost != null) { 708 String tag = tabHost.getCurrentTabTag(); 709 if (tag != null) { 710 if (currentPage >= mNumAppsPages && 711 !tag.equals(tabHost.getTabTagForContentType(ContentType.Widgets))) { 712 tabHost.setCurrentTabFromContent(ContentType.Widgets); 713 } else if (currentPage < mNumAppsPages && 714 !tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 715 tabHost.setCurrentTabFromContent(ContentType.Applications); 716 } 717 } 718 } 719 } 720 721 /* 722 * Apps PagedView implementation 723 */ 724 private void setVisibilityOnChildren(ViewGroup layout, int visibility) { 725 int childCount = layout.getChildCount(); 726 for (int i = 0; i < childCount; ++i) { 727 layout.getChildAt(i).setVisibility(visibility); 728 } 729 } 730 private void setupPage(PagedViewCellLayout layout) { 731 layout.setCellCount(mCellCountX, mCellCountY); 732 layout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 733 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 734 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 735 736 // Note: We force a measure here to get around the fact that when we do layout calculations 737 // immediately after syncing, we don't have a proper width. That said, we already know the 738 // expected page width, so we can actually optimize by hiding all the TextView-based 739 // children that are expensive to measure, and let that happen naturally later. 740 setVisibilityOnChildren(layout, View.GONE); 741 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 742 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 743 layout.setMinimumWidth(getPageContentWidth()); 744 layout.measure(widthSpec, heightSpec); 745 setVisibilityOnChildren(layout, View.VISIBLE); 746 } 747 748 public void syncAppsPageItems(int page, boolean immediate) { 749 // ensure that we have the right number of items on the pages 750 int numCells = mCellCountX * mCellCountY; 751 int startIndex = page * numCells; 752 int endIndex = Math.min(startIndex + numCells, mApps.size()); 753 PagedViewCellLayout layout = (PagedViewCellLayout) getPageAt(page); 754 755 layout.removeAllViewsOnPage(); 756 ArrayList<Object> items = new ArrayList<Object>(); 757 ArrayList<Bitmap> images = new ArrayList<Bitmap>(); 758 for (int i = startIndex; i < endIndex; ++i) { 759 ApplicationInfo info = mApps.get(i); 760 PagedViewIcon icon = (PagedViewIcon) mLayoutInflater.inflate( 761 R.layout.apps_customize_application, layout, false); 762 icon.applyFromApplicationInfo(info, true, mHolographicOutlineHelper); 763 icon.setOnClickListener(this); 764 icon.setOnLongClickListener(this); 765 icon.setOnTouchListener(this); 766 icon.setOnKeyListener(this); 767 768 int index = i - startIndex; 769 int x = index % mCellCountX; 770 int y = index / mCellCountX; 771 layout.addViewToCellLayout(icon, -1, i, new PagedViewCellLayout.LayoutParams(x,y, 1,1)); 772 773 items.add(info); 774 images.add(info.iconBitmap); 775 } 776 777 layout.createHardwareLayers(); 778 779 /* TEMPORARILY DISABLE HOLOGRAPHIC ICONS 780 if (mFadeInAdjacentScreens) { 781 prepareGenerateHoloOutlinesTask(page, items, images); 782 } 783 */ 784 } 785 786 /** 787 * A helper to return the priority for loading of the specified widget page. 788 */ 789 private int getWidgetPageLoadPriority(int page) { 790 // If we are snapping to another page, use that index as the target page index 791 int toPage = mCurrentPage; 792 if (mNextPage > -1) { 793 toPage = mNextPage; 794 } 795 796 // We use the distance from the target page as an initial guess of priority, but if there 797 // are no pages of higher priority than the page specified, then bump up the priority of 798 // the specified page. 799 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 800 int minPageDiff = Integer.MAX_VALUE; 801 while (iter.hasNext()) { 802 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 803 minPageDiff = Math.abs(task.page + mNumAppsPages - toPage); 804 } 805 806 int rawPageDiff = Math.abs(page - toPage); 807 return rawPageDiff - Math.min(rawPageDiff, minPageDiff); 808 } 809 /** 810 * Return the appropriate thread priority for loading for a given page (we give the current 811 * page much higher priority) 812 */ 813 private int getThreadPriorityForPage(int page) { 814 // TODO-APPS_CUSTOMIZE: detect number of cores and set thread priorities accordingly below 815 int pageDiff = getWidgetPageLoadPriority(page); 816 if (pageDiff <= 0) { 817 return Process.THREAD_PRIORITY_LESS_FAVORABLE; 818 } else if (pageDiff <= 1) { 819 return Process.THREAD_PRIORITY_LOWEST; 820 } else { 821 return Process.THREAD_PRIORITY_LOWEST; 822 } 823 } 824 private int getSleepForPage(int page) { 825 int pageDiff = getWidgetPageLoadPriority(page); 826 return Math.max(0, pageDiff * sPageSleepDelay); 827 } 828 /** 829 * Creates and executes a new AsyncTask to load a page of widget previews. 830 */ 831 private void prepareLoadWidgetPreviewsTask(int page, ArrayList<Object> widgets, 832 int cellWidth, int cellHeight, int cellCountX) { 833 834 // Prune all tasks that are no longer needed 835 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 836 while (iter.hasNext()) { 837 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 838 int taskPage = task.page + mNumAppsPages; 839 if (taskPage < getAssociatedLowerPageBound(mCurrentPage) || 840 taskPage > getAssociatedUpperPageBound(mCurrentPage)) { 841 task.cancel(false); 842 iter.remove(); 843 } else { 844 task.setThreadPriority(getThreadPriorityForPage(taskPage)); 845 } 846 } 847 848 // We introduce a slight delay to order the loading of side pages so that we don't thrash 849 final int sleepMs = getSleepForPage(page + mNumAppsPages); 850 AsyncTaskPageData pageData = new AsyncTaskPageData(page, widgets, cellWidth, cellHeight, 851 new AsyncTaskCallback() { 852 @Override 853 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 854 try { 855 try { 856 Thread.sleep(sleepMs); 857 } catch (Exception e) {} 858 loadWidgetPreviewsInBackground(task, data); 859 } finally { 860 if (task.isCancelled()) { 861 data.cleanup(true); 862 } 863 } 864 } 865 }, 866 new AsyncTaskCallback() { 867 @Override 868 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 869 try { 870 mRunningTasks.remove(task); 871 if (task.isCancelled()) return; 872 onSyncWidgetPageItems(data); 873 } finally { 874 data.cleanup(task.isCancelled()); 875 } 876 } 877 }); 878 879 // Ensure that the task is appropriately prioritized and runs in parallel 880 AppsCustomizeAsyncTask t = new AppsCustomizeAsyncTask(page, 881 AsyncTaskPageData.Type.LoadWidgetPreviewData); 882 t.setThreadPriority(getThreadPriorityForPage(page + mNumAppsPages)); 883 t.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, pageData); 884 mRunningTasks.add(t); 885 } 886 /** 887 * Creates and executes a new AsyncTask to load the outlines for a page of content. 888 */ 889 private void prepareGenerateHoloOutlinesTask(int page, ArrayList<Object> items, 890 ArrayList<Bitmap> images) { 891 // Prune old tasks for this page 892 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 893 while (iter.hasNext()) { 894 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 895 int taskPage = task.page; 896 if ((taskPage == page) && 897 (task.dataType == AsyncTaskPageData.Type.LoadHolographicIconsData)) { 898 task.cancel(false); 899 iter.remove(); 900 } 901 } 902 903 AsyncTaskPageData pageData = new AsyncTaskPageData(page, items, images, 904 new AsyncTaskCallback() { 905 @Override 906 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 907 try { 908 // Ensure that this task starts running at the correct priority 909 task.syncThreadPriority(); 910 911 ArrayList<Bitmap> images = data.generatedImages; 912 ArrayList<Bitmap> srcImages = data.sourceImages; 913 int count = srcImages.size(); 914 Canvas c = new Canvas(); 915 for (int i = 0; i < count && !task.isCancelled(); ++i) { 916 // Before work on each item, ensure that this task is running at the correct 917 // priority 918 task.syncThreadPriority(); 919 920 Bitmap b = srcImages.get(i); 921 Bitmap outline = Bitmap.createBitmap(b.getWidth(), b.getHeight(), 922 Bitmap.Config.ARGB_8888); 923 924 c.setBitmap(outline); 925 c.save(); 926 c.drawBitmap(b, 0, 0, null); 927 c.restore(); 928 c.setBitmap(null); 929 930 images.add(outline); 931 } 932 } finally { 933 if (task.isCancelled()) { 934 data.cleanup(true); 935 } 936 } 937 } 938 }, 939 new AsyncTaskCallback() { 940 @Override 941 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 942 try { 943 mRunningTasks.remove(task); 944 if (task.isCancelled()) return; 945 onHolographicPageItemsLoaded(data); 946 } finally { 947 data.cleanup(task.isCancelled()); 948 } 949 } 950 }); 951 952 // Ensure that the outline task always runs in the background, serially 953 AppsCustomizeAsyncTask t = 954 new AppsCustomizeAsyncTask(page, AsyncTaskPageData.Type.LoadHolographicIconsData); 955 t.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND); 956 t.executeOnExecutor(AsyncTask.SERIAL_EXECUTOR, pageData); 957 mRunningTasks.add(t); 958 } 959 960 /* 961 * Widgets PagedView implementation 962 */ 963 private void setupPage(PagedViewGridLayout layout) { 964 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 965 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 966 967 // Note: We force a measure here to get around the fact that when we do layout calculations 968 // immediately after syncing, we don't have a proper width. 969 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 970 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 971 layout.setMinimumWidth(getPageContentWidth()); 972 layout.measure(widthSpec, heightSpec); 973 } 974 975 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h) { 976 renderDrawableToBitmap(d, bitmap, x, y, w, h, 1f, 0xFFFFFFFF); 977 } 978 979 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h, 980 float scale, int multiplyColor) { 981 if (bitmap != null) { 982 Canvas c = new Canvas(bitmap); 983 c.scale(scale, scale); 984 Rect oldBounds = d.copyBounds(); 985 d.setBounds(x, y, x + w, y + h); 986 d.draw(c); 987 d.setBounds(oldBounds); // Restore the bounds 988 if (multiplyColor != 0xFFFFFFFF) { 989 c.drawColor(mDragViewMultiplyColor, PorterDuff.Mode.MULTIPLY); 990 } 991 c.setBitmap(null); 992 } 993 } 994 private Bitmap getShortcutPreview(ResolveInfo info) { 995 // Render the background 996 int offset = 0; 997 int bitmapSize = mAppIconSize; 998 Bitmap preview = Bitmap.createBitmap(bitmapSize, bitmapSize, Config.ARGB_8888); 999 1000 // Render the icon 1001 Drawable icon = mIconCache.getFullResIcon(info); 1002 renderDrawableToBitmap(icon, preview, offset, offset, mAppIconSize, mAppIconSize); 1003 return preview; 1004 } 1005 1006 private Bitmap getWidgetPreview(ComponentName provider, int previewImage, int iconId, 1007 int cellHSpan, int cellVSpan, int maxWidth, int maxHeight) { 1008 // Load the preview image if possible 1009 String packageName = provider.getPackageName(); 1010 if (maxWidth < 0) maxWidth = Integer.MAX_VALUE; 1011 if (maxHeight < 0) maxHeight = Integer.MAX_VALUE; 1012 1013 Drawable drawable = null; 1014 if (previewImage != 0) { 1015 drawable = mPackageManager.getDrawable(packageName, previewImage, null); 1016 if (drawable == null) { 1017 Log.w(LOG_TAG, "Can't load widget preview drawable 0x" + 1018 Integer.toHexString(previewImage) + " for provider: " + provider); 1019 } 1020 } 1021 1022 int bitmapWidth; 1023 int bitmapHeight; 1024 boolean widgetPreviewExists = (drawable != null); 1025 if (widgetPreviewExists) { 1026 bitmapWidth = drawable.getIntrinsicWidth(); 1027 bitmapHeight = drawable.getIntrinsicHeight(); 1028 1029 // Cap the size so widget previews don't appear larger than the actual widget 1030 maxWidth = Math.min(maxWidth, mWidgetSpacingLayout.estimateCellWidth(cellHSpan)); 1031 maxHeight = Math.min(maxHeight, mWidgetSpacingLayout.estimateCellHeight(cellVSpan)); 1032 } else { 1033 // Determine the size of the bitmap for the preview image we will generate 1034 // TODO: This actually uses the apps customize cell layout params, where as we make want 1035 // the Workspace params for more accuracy. 1036 bitmapWidth = mWidgetSpacingLayout.estimateCellWidth(cellHSpan); 1037 bitmapHeight = mWidgetSpacingLayout.estimateCellHeight(cellVSpan); 1038 if (cellHSpan == cellVSpan) { 1039 // For square widgets, we just have a fixed size for 1x1 and larger-than-1x1 1040 int minOffset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 1041 if (cellHSpan <= 1) { 1042 bitmapWidth = bitmapHeight = mAppIconSize + 2 * minOffset; 1043 } else { 1044 bitmapWidth = bitmapHeight = mAppIconSize + 4 * minOffset; 1045 } 1046 } 1047 } 1048 1049 float scale = 1f; 1050 if (bitmapWidth > maxWidth) { 1051 scale = maxWidth / (float) bitmapWidth; 1052 } 1053 if (bitmapHeight * scale > maxHeight) { 1054 scale = maxHeight / (float) bitmapHeight; 1055 } 1056 if (scale != 1f) { 1057 bitmapWidth = (int) (scale * bitmapWidth); 1058 bitmapHeight = (int) (scale * bitmapHeight); 1059 } 1060 1061 Bitmap preview = Bitmap.createBitmap(bitmapWidth, bitmapHeight, Config.ARGB_8888); 1062 1063 if (widgetPreviewExists) { 1064 renderDrawableToBitmap(drawable, preview, 0, 0, bitmapWidth, bitmapHeight); 1065 } else { 1066 // Generate a preview image if we couldn't load one 1067 int minOffset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 1068 int smallestSide = Math.min(bitmapWidth, bitmapHeight); 1069 float iconScale = Math.min((float) smallestSide / (mAppIconSize + 2 * minOffset), 1f); 1070 if (cellHSpan != 1 || cellVSpan != 1) { 1071 renderDrawableToBitmap(mDefaultWidgetBackground, preview, 0, 0, bitmapWidth, 1072 bitmapHeight); 1073 } 1074 1075 // Draw the icon in the top left corner 1076 try { 1077 Drawable icon = null; 1078 int hoffset = (int) (bitmapWidth / 2 - mAppIconSize * iconScale / 2); 1079 int yoffset = (int) (bitmapHeight / 2 - mAppIconSize * iconScale / 2); 1080 if (iconId > 0) icon = mIconCache.getFullResIcon(packageName, iconId); 1081 Resources resources = mLauncher.getResources(); 1082 if (icon == null) icon = resources.getDrawable(R.drawable.ic_launcher_application); 1083 1084 renderDrawableToBitmap(icon, preview, hoffset, yoffset, 1085 (int) (mAppIconSize * iconScale), 1086 (int) (mAppIconSize * iconScale)); 1087 } catch (Resources.NotFoundException e) {} 1088 } 1089 return preview; 1090 } 1091 1092 public void syncWidgetPageItems(final int page, final boolean immediate) { 1093 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 1094 1095 // Calculate the dimensions of each cell we are giving to each widget 1096 final ArrayList<Object> items = new ArrayList<Object>(); 1097 int contentWidth = mWidgetSpacingLayout.getContentWidth(); 1098 final int cellWidth = ((contentWidth - mPageLayoutPaddingLeft - mPageLayoutPaddingRight 1099 - ((mWidgetCountX - 1) * mWidgetWidthGap)) / mWidgetCountX); 1100 int contentHeight = mWidgetSpacingLayout.getContentHeight(); 1101 final int cellHeight = ((contentHeight - mPageLayoutPaddingTop - mPageLayoutPaddingBottom 1102 - ((mWidgetCountY - 1) * mWidgetHeightGap)) / mWidgetCountY); 1103 1104 // Prepare the set of widgets to load previews for in the background 1105 int offset = page * numItemsPerPage; 1106 for (int i = offset; i < Math.min(offset + numItemsPerPage, mWidgets.size()); ++i) { 1107 items.add(mWidgets.get(i)); 1108 } 1109 1110 // Prepopulate the pages with the other widget info, and fill in the previews later 1111 final PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page + mNumAppsPages); 1112 layout.setColumnCount(layout.getCellCountX()); 1113 for (int i = 0; i < items.size(); ++i) { 1114 Object rawInfo = items.get(i); 1115 PendingAddItemInfo createItemInfo = null; 1116 PagedViewWidget widget = (PagedViewWidget) mLayoutInflater.inflate( 1117 R.layout.apps_customize_widget, layout, false); 1118 if (rawInfo instanceof AppWidgetProviderInfo) { 1119 // Fill in the widget information 1120 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1121 createItemInfo = new PendingAddWidgetInfo(info, null, null); 1122 int[] cellSpans = mLauncher.getSpanForWidget(info, null); 1123 widget.applyFromAppWidgetProviderInfo(info, -1, cellSpans, 1124 mHolographicOutlineHelper); 1125 widget.setTag(createItemInfo); 1126 } else if (rawInfo instanceof ResolveInfo) { 1127 // Fill in the shortcuts information 1128 ResolveInfo info = (ResolveInfo) rawInfo; 1129 createItemInfo = new PendingAddItemInfo(); 1130 createItemInfo.itemType = LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT; 1131 createItemInfo.componentName = new ComponentName(info.activityInfo.packageName, 1132 info.activityInfo.name); 1133 widget.applyFromResolveInfo(mPackageManager, info, mHolographicOutlineHelper); 1134 widget.setTag(createItemInfo); 1135 } 1136 widget.setOnClickListener(this); 1137 widget.setOnLongClickListener(this); 1138 widget.setOnTouchListener(this); 1139 widget.setOnKeyListener(this); 1140 1141 // Layout each widget 1142 int ix = i % mWidgetCountX; 1143 int iy = i / mWidgetCountX; 1144 GridLayout.LayoutParams lp = new GridLayout.LayoutParams( 1145 GridLayout.spec(iy, GridLayout.LEFT), 1146 GridLayout.spec(ix, GridLayout.TOP)); 1147 lp.width = cellWidth; 1148 lp.height = cellHeight; 1149 lp.setGravity(Gravity.TOP | Gravity.LEFT); 1150 if (ix > 0) lp.leftMargin = mWidgetWidthGap; 1151 if (iy > 0) lp.topMargin = mWidgetHeightGap; 1152 layout.addView(widget, lp); 1153 } 1154 1155 // wait until a call on onLayout to start loading, because 1156 // PagedViewWidget.getPreviewSize() will return 0 if it hasn't been laid out 1157 // TODO: can we do a measure/layout immediately? 1158 layout.setOnLayoutListener(new Runnable() { 1159 public void run() { 1160 // Load the widget previews 1161 int maxPreviewWidth = cellWidth; 1162 int maxPreviewHeight = cellHeight; 1163 if (layout.getChildCount() > 0) { 1164 PagedViewWidget w = (PagedViewWidget) layout.getChildAt(0); 1165 int[] maxSize = w.getPreviewSize(); 1166 maxPreviewWidth = maxSize[0]; 1167 maxPreviewHeight = maxSize[1]; 1168 } 1169 if (immediate) { 1170 AsyncTaskPageData data = new AsyncTaskPageData(page, items, 1171 maxPreviewWidth, maxPreviewHeight, null, null); 1172 loadWidgetPreviewsInBackground(null, data); 1173 onSyncWidgetPageItems(data); 1174 } else { 1175 prepareLoadWidgetPreviewsTask(page, items, 1176 maxPreviewWidth, maxPreviewHeight, mWidgetCountX); 1177 } 1178 } 1179 }); 1180 } 1181 private void loadWidgetPreviewsInBackground(AppsCustomizeAsyncTask task, 1182 AsyncTaskPageData data) { 1183 // loadWidgetPreviewsInBackground can be called without a task to load a set of widget 1184 // previews synchronously 1185 if (task != null) { 1186 // Ensure that this task starts running at the correct priority 1187 task.syncThreadPriority(); 1188 } 1189 1190 // Load each of the widget/shortcut previews 1191 ArrayList<Object> items = data.items; 1192 ArrayList<Bitmap> images = data.generatedImages; 1193 int count = items.size(); 1194 for (int i = 0; i < count; ++i) { 1195 if (task != null) { 1196 // Ensure we haven't been cancelled yet 1197 if (task.isCancelled()) break; 1198 // Before work on each item, ensure that this task is running at the correct 1199 // priority 1200 task.syncThreadPriority(); 1201 } 1202 1203 Object rawInfo = items.get(i); 1204 if (rawInfo instanceof AppWidgetProviderInfo) { 1205 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1206 int[] cellSpans = mLauncher.getSpanForWidget(info, null); 1207 Bitmap b = getWidgetPreview(info.provider, info.previewImage, info.icon, 1208 cellSpans[0], cellSpans[1], data.maxImageWidth, data.maxImageHeight); 1209 images.add(b); 1210 } else if (rawInfo instanceof ResolveInfo) { 1211 // Fill in the shortcuts information 1212 ResolveInfo info = (ResolveInfo) rawInfo; 1213 images.add(getShortcutPreview(info)); 1214 } 1215 } 1216 } 1217 private void onSyncWidgetPageItems(AsyncTaskPageData data) { 1218 int page = data.page; 1219 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page + mNumAppsPages); 1220 1221 ArrayList<Object> items = data.items; 1222 int count = items.size(); 1223 for (int i = 0; i < count; ++i) { 1224 PagedViewWidget widget = (PagedViewWidget) layout.getChildAt(i); 1225 if (widget != null) { 1226 Bitmap preview = data.generatedImages.get(i); 1227 widget.applyPreview(new FastBitmapDrawable(preview), i); 1228 } 1229 } 1230 1231 layout.createHardwareLayer(); 1232 invalidate(); 1233 1234 /* TEMPORARILY DISABLE HOLOGRAPHIC ICONS 1235 if (mFadeInAdjacentScreens) { 1236 prepareGenerateHoloOutlinesTask(data.page, data.items, data.generatedImages); 1237 } 1238 */ 1239 1240 // Update all thread priorities 1241 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1242 while (iter.hasNext()) { 1243 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1244 int pageIndex = task.page + mNumAppsPages; 1245 task.setThreadPriority(getThreadPriorityForPage(pageIndex)); 1246 } 1247 } 1248 private void onHolographicPageItemsLoaded(AsyncTaskPageData data) { 1249 // Invalidate early to short-circuit children invalidates 1250 invalidate(); 1251 1252 int page = data.page; 1253 ViewGroup layout = (ViewGroup) getPageAt(page); 1254 if (layout instanceof PagedViewCellLayout) { 1255 PagedViewCellLayout cl = (PagedViewCellLayout) layout; 1256 int count = cl.getPageChildCount(); 1257 if (count != data.generatedImages.size()) return; 1258 for (int i = 0; i < count; ++i) { 1259 PagedViewIcon icon = (PagedViewIcon) cl.getChildOnPageAt(i); 1260 icon.setHolographicOutline(data.generatedImages.get(i)); 1261 } 1262 } else { 1263 int count = layout.getChildCount(); 1264 if (count != data.generatedImages.size()) return; 1265 for (int i = 0; i < count; ++i) { 1266 View v = layout.getChildAt(i); 1267 ((PagedViewWidget) v).setHolographicOutline(data.generatedImages.get(i)); 1268 } 1269 } 1270 } 1271 1272 @Override 1273 public void syncPages() { 1274 removeAllViews(); 1275 cancelAllTasks(); 1276 1277 Context context = getContext(); 1278 for (int j = 0; j < mNumWidgetPages; ++j) { 1279 PagedViewGridLayout layout = new PagedViewGridLayout(context, mWidgetCountX, 1280 mWidgetCountY); 1281 setupPage(layout); 1282 addView(layout, new PagedViewGridLayout.LayoutParams(LayoutParams.MATCH_PARENT, 1283 LayoutParams.MATCH_PARENT)); 1284 } 1285 1286 for (int i = 0; i < mNumAppsPages; ++i) { 1287 PagedViewCellLayout layout = new PagedViewCellLayout(context); 1288 setupPage(layout); 1289 addView(layout); 1290 } 1291 } 1292 1293 @Override 1294 public void syncPageItems(int page, boolean immediate) { 1295 if (page < mNumAppsPages) { 1296 syncAppsPageItems(page, immediate); 1297 } else { 1298 syncWidgetPageItems(page - mNumAppsPages, immediate); 1299 } 1300 } 1301 1302 // We want our pages to be z-ordered such that the further a page is to the left, the higher 1303 // it is in the z-order. This is important to insure touch events are handled correctly. 1304 View getPageAt(int index) { 1305 return getChildAt(getChildCount() - index - 1); 1306 } 1307 1308 @Override 1309 protected int indexToPage(int index) { 1310 return getChildCount() - index - 1; 1311 } 1312 1313 // In apps customize, we have a scrolling effect which emulates pulling cards off of a stack. 1314 @Override 1315 protected void screenScrolled(int screenCenter) { 1316 super.screenScrolled(screenCenter); 1317 1318 for (int i = 0; i < getChildCount(); i++) { 1319 View v = getPageAt(i); 1320 if (v != null) { 1321 float scrollProgress = getScrollProgress(screenCenter, v, i); 1322 1323 float interpolatedProgress = 1324 mZInterpolator.getInterpolation(Math.abs(Math.min(scrollProgress, 0))); 1325 float scale = (1 - interpolatedProgress) + 1326 interpolatedProgress * TRANSITION_SCALE_FACTOR; 1327 float translationX = Math.min(0, scrollProgress) * v.getMeasuredWidth(); 1328 1329 float alpha; 1330 1331 if (!LauncherApplication.isScreenLarge() || scrollProgress < 0) { 1332 alpha = scrollProgress < 0 ? mAlphaInterpolator.getInterpolation( 1333 1 - Math.abs(scrollProgress)) : 1.0f; 1334 } else { 1335 // On large screens we need to fade the page as it nears its leftmost position 1336 alpha = mLeftScreenAlphaInterpolator.getInterpolation(1 - scrollProgress); 1337 } 1338 1339 v.setCameraDistance(mDensity * CAMERA_DISTANCE); 1340 int pageWidth = v.getMeasuredWidth(); 1341 int pageHeight = v.getMeasuredHeight(); 1342 1343 if (PERFORM_OVERSCROLL_ROTATION) { 1344 if (i == 0 && scrollProgress < 0) { 1345 // Overscroll to the left 1346 v.setPivotX(TRANSITION_PIVOT * pageWidth); 1347 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1348 scale = 1.0f; 1349 alpha = 1.0f; 1350 // On the first page, we don't want the page to have any lateral motion 1351 translationX = 0; 1352 } else if (i == getChildCount() - 1 && scrollProgress > 0) { 1353 // Overscroll to the right 1354 v.setPivotX((1 - TRANSITION_PIVOT) * pageWidth); 1355 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1356 scale = 1.0f; 1357 alpha = 1.0f; 1358 // On the last page, we don't want the page to have any lateral motion. 1359 translationX = 0; 1360 } else { 1361 v.setPivotY(pageHeight / 2.0f); 1362 v.setPivotX(pageWidth / 2.0f); 1363 v.setRotationY(0f); 1364 } 1365 } 1366 1367 v.setTranslationX(translationX); 1368 v.setScaleX(scale); 1369 v.setScaleY(scale); 1370 v.setAlpha(alpha); 1371 1372 // If the view has 0 alpha, we set it to be invisible so as to prevent 1373 // it from accepting touches 1374 if (alpha < ViewConfiguration.ALPHA_THRESHOLD) { 1375 v.setVisibility(INVISIBLE); 1376 } else if (v.getVisibility() != VISIBLE) { 1377 v.setVisibility(VISIBLE); 1378 } 1379 } 1380 } 1381 } 1382 1383 protected void overScroll(float amount) { 1384 acceleratedOverScroll(amount); 1385 } 1386 1387 /** 1388 * Used by the parent to get the content width to set the tab bar to 1389 * @return 1390 */ 1391 public int getPageContentWidth() { 1392 return mContentWidth; 1393 } 1394 1395 @Override 1396 protected void onPageEndMoving() { 1397 super.onPageEndMoving(); 1398 1399 // We reset the save index when we change pages so that it will be recalculated on next 1400 // rotation 1401 mSaveInstanceStateItemIndex = -1; 1402 } 1403 1404 /* 1405 * AllAppsView implementation 1406 */ 1407 @Override 1408 public void setup(Launcher launcher, DragController dragController) { 1409 mLauncher = launcher; 1410 mDragController = dragController; 1411 } 1412 @Override 1413 public void zoom(float zoom, boolean animate) { 1414 // TODO-APPS_CUSTOMIZE: Call back to mLauncher.zoomed() 1415 } 1416 @Override 1417 public boolean isVisible() { 1418 return (getVisibility() == VISIBLE); 1419 } 1420 @Override 1421 public boolean isAnimating() { 1422 return false; 1423 } 1424 @Override 1425 public void setApps(ArrayList<ApplicationInfo> list) { 1426 mApps = list; 1427 Collections.sort(mApps, LauncherModel.APP_NAME_COMPARATOR); 1428 updatePageCounts(); 1429 1430 // The next layout pass will trigger data-ready if both widgets and apps are set, so 1431 // request a layout to do this test and invalidate the page data when ready. 1432 if (testDataReady()) requestLayout(); 1433 } 1434 private void addAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1435 // We add it in place, in alphabetical order 1436 int count = list.size(); 1437 for (int i = 0; i < count; ++i) { 1438 ApplicationInfo info = list.get(i); 1439 int index = Collections.binarySearch(mApps, info, LauncherModel.APP_NAME_COMPARATOR); 1440 if (index < 0) { 1441 mApps.add(-(index + 1), info); 1442 } 1443 } 1444 } 1445 @Override 1446 public void addApps(ArrayList<ApplicationInfo> list) { 1447 addAppsWithoutInvalidate(list); 1448 updatePageCounts(); 1449 invalidatePageData(); 1450 } 1451 private int findAppByComponent(List<ApplicationInfo> list, ApplicationInfo item) { 1452 ComponentName removeComponent = item.intent.getComponent(); 1453 int length = list.size(); 1454 for (int i = 0; i < length; ++i) { 1455 ApplicationInfo info = list.get(i); 1456 if (info.intent.getComponent().equals(removeComponent)) { 1457 return i; 1458 } 1459 } 1460 return -1; 1461 } 1462 private void removeAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1463 // loop through all the apps and remove apps that have the same component 1464 int length = list.size(); 1465 for (int i = 0; i < length; ++i) { 1466 ApplicationInfo info = list.get(i); 1467 int removeIndex = findAppByComponent(mApps, info); 1468 if (removeIndex > -1) { 1469 mApps.remove(removeIndex); 1470 } 1471 } 1472 } 1473 @Override 1474 public void removeApps(ArrayList<ApplicationInfo> list) { 1475 removeAppsWithoutInvalidate(list); 1476 updatePageCounts(); 1477 invalidatePageData(); 1478 } 1479 @Override 1480 public void updateApps(ArrayList<ApplicationInfo> list) { 1481 // We remove and re-add the updated applications list because it's properties may have 1482 // changed (ie. the title), and this will ensure that the items will be in their proper 1483 // place in the list. 1484 removeAppsWithoutInvalidate(list); 1485 addAppsWithoutInvalidate(list); 1486 updatePageCounts(); 1487 1488 invalidatePageData(); 1489 } 1490 1491 @Override 1492 public void reset() { 1493 AppsCustomizeTabHost tabHost = getTabHost(); 1494 String tag = tabHost.getCurrentTabTag(); 1495 if (tag != null) { 1496 if (!tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 1497 tabHost.setCurrentTabFromContent(ContentType.Applications); 1498 } 1499 } 1500 if (mCurrentPage != 0) { 1501 invalidatePageData(0); 1502 } 1503 } 1504 1505 private AppsCustomizeTabHost getTabHost() { 1506 return (AppsCustomizeTabHost) mLauncher.findViewById(R.id.apps_customize_pane); 1507 } 1508 1509 @Override 1510 public void dumpState() { 1511 // TODO: Dump information related to current list of Applications, Widgets, etc. 1512 ApplicationInfo.dumpApplicationInfoList(LOG_TAG, "mApps", mApps); 1513 dumpAppWidgetProviderInfoList(LOG_TAG, "mWidgets", mWidgets); 1514 } 1515 1516 private void dumpAppWidgetProviderInfoList(String tag, String label, 1517 ArrayList<Object> list) { 1518 Log.d(tag, label + " size=" + list.size()); 1519 for (Object i: list) { 1520 if (i instanceof AppWidgetProviderInfo) { 1521 AppWidgetProviderInfo info = (AppWidgetProviderInfo) i; 1522 Log.d(tag, " label=\"" + info.label + "\" previewImage=" + info.previewImage 1523 + " resizeMode=" + info.resizeMode + " configure=" + info.configure 1524 + " initialLayout=" + info.initialLayout 1525 + " minWidth=" + info.minWidth + " minHeight=" + info.minHeight); 1526 } else if (i instanceof ResolveInfo) { 1527 ResolveInfo info = (ResolveInfo) i; 1528 Log.d(tag, " label=\"" + info.loadLabel(mPackageManager) + "\" icon=" 1529 + info.icon); 1530 } 1531 } 1532 } 1533 1534 @Override 1535 public void surrender() { 1536 // TODO: If we are in the middle of any process (ie. for holographic outlines, etc) we 1537 // should stop this now. 1538 1539 // Stop all background tasks 1540 cancelAllTasks(); 1541 } 1542 1543 1544 /* 1545 * We load an extra page on each side to prevent flashes from scrolling and loading of the 1546 * widget previews in the background with the AsyncTasks. 1547 */ 1548 final static int sLookBehindPageCount = 2; 1549 final static int sLookAheadPageCount = 2; 1550 protected int getAssociatedLowerPageBound(int page) { 1551 final int count = getChildCount(); 1552 int windowSize = Math.min(count, sLookBehindPageCount + sLookAheadPageCount + 1); 1553 int windowMinIndex = Math.max(Math.min(page - sLookBehindPageCount, count - windowSize), 0); 1554 return windowMinIndex; 1555 } 1556 protected int getAssociatedUpperPageBound(int page) { 1557 final int count = getChildCount(); 1558 int windowSize = Math.min(count, sLookBehindPageCount + sLookAheadPageCount + 1); 1559 int windowMaxIndex = Math.min(Math.max(page + sLookAheadPageCount, windowSize - 1), 1560 count - 1); 1561 return windowMaxIndex; 1562 } 1563 1564 @Override 1565 protected String getCurrentPageDescription() { 1566 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 1567 int stringId = R.string.default_scroll_format; 1568 int count = 0; 1569 1570 if (page < mNumAppsPages) { 1571 stringId = R.string.apps_customize_apps_scroll_format; 1572 count = mNumAppsPages; 1573 } else { 1574 page -= mNumAppsPages; 1575 stringId = R.string.apps_customize_widgets_scroll_format; 1576 count = mNumWidgetPages; 1577 } 1578 1579 return String.format(mContext.getString(stringId), page + 1, count); 1580 } 1581 } 1582
