AppsCustomizePagedView.java revision 1b36dc3f2bb643e3b9600755f1a98522e4efc2ed
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 17package com.android.launcher2; 18 19import android.animation.AnimatorSet; 20import android.animation.ObjectAnimator; 21import android.animation.ValueAnimator; 22import android.appwidget.AppWidgetHostView; 23import android.appwidget.AppWidgetManager; 24import android.appwidget.AppWidgetProviderInfo; 25import android.content.ComponentName; 26import android.content.Context; 27import android.content.Intent; 28import android.content.pm.PackageManager; 29import android.content.pm.ResolveInfo; 30import android.content.res.Configuration; 31import android.content.res.Resources; 32import android.content.res.TypedArray; 33import android.graphics.Bitmap; 34import android.graphics.Bitmap.Config; 35import android.graphics.Canvas; 36import android.graphics.MaskFilter; 37import android.graphics.Paint; 38import android.graphics.PorterDuff; 39import android.graphics.Rect; 40import android.graphics.TableMaskFilter; 41import android.graphics.drawable.Drawable; 42import android.os.AsyncTask; 43import android.os.Handler; 44import android.os.HandlerThread; 45import android.os.Process; 46import android.util.AttributeSet; 47import android.util.Log; 48import android.view.Gravity; 49import android.view.KeyEvent; 50import android.view.LayoutInflater; 51import android.view.MotionEvent; 52import android.view.View; 53import android.view.ViewConfiguration; 54import android.view.ViewGroup; 55import android.view.animation.AccelerateInterpolator; 56import android.view.animation.DecelerateInterpolator; 57import android.widget.GridLayout; 58import android.widget.ImageView; 59import android.widget.Toast; 60 61import com.android.launcher.R; 62import com.android.launcher2.DropTarget.DragObject; 63 64import java.util.ArrayList; 65import java.util.Collections; 66import java.util.Iterator; 67import java.util.List; 68 69/** 70 * A simple callback interface which also provides the results of the task. 71 */ 72interface AsyncTaskCallback { 73 void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data); 74} 75 76/** 77 * The data needed to perform either of the custom AsyncTasks. 78 */ 79class AsyncTaskPageData { 80 enum Type { 81 LoadWidgetPreviewData 82 } 83 84 AsyncTaskPageData(int p, ArrayList<Object> l, ArrayList<Bitmap> si, AsyncTaskCallback bgR, 85 AsyncTaskCallback postR) { 86 page = p; 87 items = l; 88 sourceImages = si; 89 generatedImages = new ArrayList<Bitmap>(); 90 maxImageWidth = maxImageHeight = -1; 91 doInBackgroundCallback = bgR; 92 postExecuteCallback = postR; 93 } 94 AsyncTaskPageData(int p, ArrayList<Object> l, int cw, int ch, AsyncTaskCallback bgR, 95 AsyncTaskCallback postR) { 96 page = p; 97 items = l; 98 generatedImages = new ArrayList<Bitmap>(); 99 maxImageWidth = cw; 100 maxImageHeight = ch; 101 doInBackgroundCallback = bgR; 102 postExecuteCallback = postR; 103 } 104 void cleanup(boolean cancelled) { 105 // Clean up any references to source/generated bitmaps 106 if (sourceImages != null) { 107 if (cancelled) { 108 for (Bitmap b : sourceImages) { 109 b.recycle(); 110 } 111 } 112 sourceImages.clear(); 113 } 114 if (generatedImages != null) { 115 if (cancelled) { 116 for (Bitmap b : generatedImages) { 117 b.recycle(); 118 } 119 } 120 generatedImages.clear(); 121 } 122 } 123 int page; 124 ArrayList<Object> items; 125 ArrayList<Bitmap> sourceImages; 126 ArrayList<Bitmap> generatedImages; 127 int maxImageWidth; 128 int maxImageHeight; 129 AsyncTaskCallback doInBackgroundCallback; 130 AsyncTaskCallback postExecuteCallback; 131} 132 133/** 134 * A generic template for an async task used in AppsCustomize. 135 */ 136class AppsCustomizeAsyncTask extends AsyncTask<AsyncTaskPageData, Void, AsyncTaskPageData> { 137 AppsCustomizeAsyncTask(int p, AsyncTaskPageData.Type ty) { 138 page = p; 139 threadPriority = Process.THREAD_PRIORITY_DEFAULT; 140 dataType = ty; 141 } 142 @Override 143 protected AsyncTaskPageData doInBackground(AsyncTaskPageData... params) { 144 if (params.length != 1) return null; 145 // Load each of the widget previews in the background 146 params[0].doInBackgroundCallback.run(this, params[0]); 147 return params[0]; 148 } 149 @Override 150 protected void onPostExecute(AsyncTaskPageData result) { 151 // All the widget previews are loaded, so we can just callback to inflate the page 152 result.postExecuteCallback.run(this, result); 153 } 154 155 void setThreadPriority(int p) { 156 threadPriority = p; 157 } 158 void syncThreadPriority() { 159 Process.setThreadPriority(threadPriority); 160 } 161 162 // The page that this async task is associated with 163 AsyncTaskPageData.Type dataType; 164 int page; 165 int threadPriority; 166} 167 168/** 169 * The Apps/Customize page that displays all the applications, widgets, and shortcuts. 170 */ 171public class AppsCustomizePagedView extends PagedViewWithDraggableItems implements 172 AllAppsView, View.OnClickListener, View.OnKeyListener, DragSource, 173 PagedViewIcon.PressedCallback, PagedViewWidget.ShortPressListener { 174 static final String LOG_TAG = "AppsCustomizePagedView"; 175 176 /** 177 * The different content types that this paged view can show. 178 */ 179 public enum ContentType { 180 Applications, 181 Widgets 182 } 183 184 // Refs 185 private Launcher mLauncher; 186 private DragController mDragController; 187 private final LayoutInflater mLayoutInflater; 188 private final PackageManager mPackageManager; 189 190 // Save and Restore 191 private int mSaveInstanceStateItemIndex = -1; 192 private PagedViewIcon mPressedIcon; 193 194 // Content 195 private ArrayList<ApplicationInfo> mApps; 196 private ArrayList<Object> mWidgets; 197 198 // Cling 199 private boolean mHasShownAllAppsCling; 200 private int mClingFocusedX; 201 private int mClingFocusedY; 202 203 // Caching 204 private Canvas mCanvas; 205 private Drawable mDefaultWidgetBackground; 206 private IconCache mIconCache; 207 private int mDragViewMultiplyColor; 208 209 // Dimens 210 private int mContentWidth; 211 private int mAppIconSize; 212 private int mMaxAppCellCountX, mMaxAppCellCountY; 213 private int mWidgetCountX, mWidgetCountY; 214 private int mWidgetWidthGap, mWidgetHeightGap; 215 private final int mWidgetPreviewIconPaddedDimension; 216 private final float sWidgetPreviewIconPaddingPercentage = 0.25f; 217 private PagedViewCellLayout mWidgetSpacingLayout; 218 private int mNumAppsPages; 219 private int mNumWidgetPages; 220 221 // Relating to the scroll and overscroll effects 222 Workspace.ZInterpolator mZInterpolator = new Workspace.ZInterpolator(0.5f); 223 private static float CAMERA_DISTANCE = 6500; 224 private static float TRANSITION_SCALE_FACTOR = 0.74f; 225 private static float TRANSITION_PIVOT = 0.65f; 226 private static float TRANSITION_MAX_ROTATION = 22; 227 private static final boolean PERFORM_OVERSCROLL_ROTATION = true; 228 private AccelerateInterpolator mAlphaInterpolator = new AccelerateInterpolator(0.9f); 229 private DecelerateInterpolator mLeftScreenAlphaInterpolator = new DecelerateInterpolator(4); 230 231 // Previews & outlines 232 ArrayList<AppsCustomizeAsyncTask> mRunningTasks; 233 private static final int sPageSleepDelay = 200; 234 235 private Runnable mInflateWidgetRunnable = null; 236 private Runnable mBindWidgetRunnable = null; 237 static final int WIDGET_NO_CLEANUP_REQUIRED = -1; 238 static final int WIDGET_BOUND = 0; 239 static final int WIDGET_INFLATED = 1; 240 int mWidgetCleanupState = WIDGET_NO_CLEANUP_REQUIRED; 241 int mWidgetLoadingId = -1; 242 PendingAddWidgetInfo mCreateWidgetInfo = null; 243 244 public AppsCustomizePagedView(Context context, AttributeSet attrs) { 245 super(context, attrs); 246 mLayoutInflater = LayoutInflater.from(context); 247 mPackageManager = context.getPackageManager(); 248 mApps = new ArrayList<ApplicationInfo>(); 249 mWidgets = new ArrayList<Object>(); 250 mIconCache = ((LauncherApplication) context.getApplicationContext()).getIconCache(); 251 mCanvas = new Canvas(); 252 mRunningTasks = new ArrayList<AppsCustomizeAsyncTask>(); 253 254 // Save the default widget preview background 255 Resources resources = context.getResources(); 256 mDefaultWidgetBackground = resources.getDrawable(R.drawable.default_widget_preview_holo); 257 mAppIconSize = resources.getDimensionPixelSize(R.dimen.app_icon_size); 258 mDragViewMultiplyColor = resources.getColor(R.color.drag_view_multiply_color); 259 260 TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.AppsCustomizePagedView, 0, 0); 261 mMaxAppCellCountX = a.getInt(R.styleable.AppsCustomizePagedView_maxAppCellCountX, -1); 262 mMaxAppCellCountY = a.getInt(R.styleable.AppsCustomizePagedView_maxAppCellCountY, -1); 263 mWidgetWidthGap = 264 a.getDimensionPixelSize(R.styleable.AppsCustomizePagedView_widgetCellWidthGap, 0); 265 mWidgetHeightGap = 266 a.getDimensionPixelSize(R.styleable.AppsCustomizePagedView_widgetCellHeightGap, 0); 267 mWidgetCountX = a.getInt(R.styleable.AppsCustomizePagedView_widgetCountX, 2); 268 mWidgetCountY = a.getInt(R.styleable.AppsCustomizePagedView_widgetCountY, 2); 269 mClingFocusedX = a.getInt(R.styleable.AppsCustomizePagedView_clingFocusedX, 0); 270 mClingFocusedY = a.getInt(R.styleable.AppsCustomizePagedView_clingFocusedY, 0); 271 a.recycle(); 272 mWidgetSpacingLayout = new PagedViewCellLayout(getContext()); 273 274 // The padding on the non-matched dimension for the default widget preview icons 275 // (top + bottom) 276 mWidgetPreviewIconPaddedDimension = 277 (int) (mAppIconSize * (1 + (2 * sWidgetPreviewIconPaddingPercentage))); 278 mFadeInAdjacentScreens = false; 279 } 280 281 @Override 282 protected void init() { 283 super.init(); 284 mCenterPagesVertically = false; 285 286 Context context = getContext(); 287 Resources r = context.getResources(); 288 setDragSlopeThreshold(r.getInteger(R.integer.config_appsCustomizeDragSlopeThreshold)/100f); 289 } 290 291 @Override 292 protected void onUnhandledTap(MotionEvent ev) { 293 if (LauncherApplication.isScreenLarge()) { 294 // Dismiss AppsCustomize if we tap 295 mLauncher.showWorkspace(true); 296 } 297 } 298 299 /** Returns the item index of the center item on this page so that we can restore to this 300 * item index when we rotate. */ 301 private int getMiddleComponentIndexOnCurrentPage() { 302 int i = -1; 303 if (getPageCount() > 0) { 304 int currentPage = getCurrentPage(); 305 if (currentPage < mNumAppsPages) { 306 PagedViewCellLayout layout = (PagedViewCellLayout) getPageAt(currentPage); 307 PagedViewCellLayoutChildren childrenLayout = layout.getChildrenLayout(); 308 int numItemsPerPage = mCellCountX * mCellCountY; 309 int childCount = childrenLayout.getChildCount(); 310 if (childCount > 0) { 311 i = (currentPage * numItemsPerPage) + (childCount / 2); 312 } 313 } else { 314 int numApps = mApps.size(); 315 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(currentPage); 316 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 317 int childCount = layout.getChildCount(); 318 if (childCount > 0) { 319 i = numApps + 320 ((currentPage - mNumAppsPages) * numItemsPerPage) + (childCount / 2); 321 } 322 } 323 } 324 return i; 325 } 326 327 /** Get the index of the item to restore to if we need to restore the current page. */ 328 int getSaveInstanceStateIndex() { 329 if (mSaveInstanceStateItemIndex == -1) { 330 mSaveInstanceStateItemIndex = getMiddleComponentIndexOnCurrentPage(); 331 } 332 return mSaveInstanceStateItemIndex; 333 } 334 335 /** Returns the page in the current orientation which is expected to contain the specified 336 * item index. */ 337 int getPageForComponent(int index) { 338 if (index < 0) return 0; 339 340 if (index < mApps.size()) { 341 int numItemsPerPage = mCellCountX * mCellCountY; 342 return (index / numItemsPerPage); 343 } else { 344 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 345 return mNumAppsPages + ((index - mApps.size()) / numItemsPerPage); 346 } 347 } 348 349 /** 350 * This differs from isDataReady as this is the test done if isDataReady is not set. 351 */ 352 private boolean testDataReady() { 353 // We only do this test once, and we default to the Applications page, so we only really 354 // have to wait for there to be apps. 355 // TODO: What if one of them is validly empty 356 return !mApps.isEmpty() && !mWidgets.isEmpty(); 357 } 358 359 /** Restores the page for an item at the specified index */ 360 void restorePageForIndex(int index) { 361 if (index < 0) return; 362 mSaveInstanceStateItemIndex = index; 363 } 364 365 private void updatePageCounts() { 366 mNumWidgetPages = (int) Math.ceil(mWidgets.size() / 367 (float) (mWidgetCountX * mWidgetCountY)); 368 mNumAppsPages = (int) Math.ceil((float) mApps.size() / (mCellCountX * mCellCountY)); 369 } 370 371 protected void onDataReady(int width, int height) { 372 // Note that we transpose the counts in portrait so that we get a similar layout 373 boolean isLandscape = getResources().getConfiguration().orientation == 374 Configuration.ORIENTATION_LANDSCAPE; 375 int maxCellCountX = Integer.MAX_VALUE; 376 int maxCellCountY = Integer.MAX_VALUE; 377 if (LauncherApplication.isScreenLarge()) { 378 maxCellCountX = (isLandscape ? LauncherModel.getCellCountX() : 379 LauncherModel.getCellCountY()); 380 maxCellCountY = (isLandscape ? LauncherModel.getCellCountY() : 381 LauncherModel.getCellCountX()); 382 } 383 if (mMaxAppCellCountX > -1) { 384 maxCellCountX = Math.min(maxCellCountX, mMaxAppCellCountX); 385 } 386 if (mMaxAppCellCountY > -1) { 387 maxCellCountY = Math.min(maxCellCountY, mMaxAppCellCountY); 388 } 389 390 // Now that the data is ready, we can calculate the content width, the number of cells to 391 // use for each page 392 mWidgetSpacingLayout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 393 mWidgetSpacingLayout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 394 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 395 mWidgetSpacingLayout.calculateCellCount(width, height, maxCellCountX, maxCellCountY); 396 mCellCountX = mWidgetSpacingLayout.getCellCountX(); 397 mCellCountY = mWidgetSpacingLayout.getCellCountY(); 398 updatePageCounts(); 399 400 // Force a measure to update recalculate the gaps 401 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 402 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 403 mWidgetSpacingLayout.measure(widthSpec, heightSpec); 404 mContentWidth = mWidgetSpacingLayout.getContentWidth(); 405 406 AppsCustomizeTabHost host = (AppsCustomizeTabHost) getTabHost(); 407 final boolean hostIsTransitioning = host.isTransitioning(); 408 409 // Restore the page 410 int page = getPageForComponent(mSaveInstanceStateItemIndex); 411 invalidatePageData(Math.max(0, page), hostIsTransitioning); 412 413 // Show All Apps cling if we are finished transitioning, otherwise, we will try again when 414 // the transition completes in AppsCustomizeTabHost (otherwise the wrong offsets will be 415 // returned while animating) 416 if (!hostIsTransitioning) { 417 post(new Runnable() { 418 @Override 419 public void run() { 420 showAllAppsCling(); 421 } 422 }); 423 } 424 } 425 426 void showAllAppsCling() { 427 if (!mHasShownAllAppsCling && isDataReady() && testDataReady()) { 428 mHasShownAllAppsCling = true; 429 // Calculate the position for the cling punch through 430 int[] offset = new int[2]; 431 int[] pos = mWidgetSpacingLayout.estimateCellPosition(mClingFocusedX, mClingFocusedY); 432 mLauncher.getDragLayer().getLocationInDragLayer(this, offset); 433 // PagedViews are centered horizontally but top aligned 434 pos[0] += (getMeasuredWidth() - mWidgetSpacingLayout.getMeasuredWidth()) / 2 + 435 offset[0]; 436 pos[1] += offset[1]; 437 mLauncher.showFirstRunAllAppsCling(pos); 438 } 439 } 440 441 @Override 442 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 443 int width = MeasureSpec.getSize(widthMeasureSpec); 444 int height = MeasureSpec.getSize(heightMeasureSpec); 445 if (!isDataReady()) { 446 if (testDataReady()) { 447 setDataIsReady(); 448 setMeasuredDimension(width, height); 449 onDataReady(width, height); 450 } 451 } 452 453 super.onMeasure(widthMeasureSpec, heightMeasureSpec); 454 } 455 456 public void onPackagesUpdated() { 457 // TODO: this isn't ideal, but we actually need to delay here. This call is triggered 458 // by a broadcast receiver, and in order for it to work correctly, we need to know that 459 // the AppWidgetService has already received and processed the same broadcast. Since there 460 // is no guarantee about ordering of broadcast receipt, we just delay here. Ideally, 461 // we should have a more precise way of ensuring the AppWidgetService is up to date. 462 postDelayed(new Runnable() { 463 public void run() { 464 updatePackages(); 465 } 466 }, 500); 467 } 468 469 public void updatePackages() { 470 // Get the list of widgets and shortcuts 471 boolean wasEmpty = mWidgets.isEmpty(); 472 mWidgets.clear(); 473 List<AppWidgetProviderInfo> widgets = 474 AppWidgetManager.getInstance(mLauncher).getInstalledProviders(); 475 Intent shortcutsIntent = new Intent(Intent.ACTION_CREATE_SHORTCUT); 476 List<ResolveInfo> shortcuts = mPackageManager.queryIntentActivities(shortcutsIntent, 0); 477 for (AppWidgetProviderInfo widget : widgets) { 478 if (widget.minWidth > 0 && widget.minHeight > 0) { 479 mWidgets.add(widget); 480 } else { 481 Log.e(LOG_TAG, "Widget " + widget.provider + " has invalid dimensions (" + 482 widget.minWidth + ", " + widget.minHeight + ")"); 483 } 484 } 485 mWidgets.addAll(shortcuts); 486 Collections.sort(mWidgets, 487 new LauncherModel.WidgetAndShortcutNameComparator(mPackageManager)); 488 updatePageCounts(); 489 490 if (wasEmpty) { 491 // The next layout pass will trigger data-ready if both widgets and apps are set, so request 492 // a layout to do this test and invalidate the page data when ready. 493 if (testDataReady()) requestLayout(); 494 } else { 495 cancelAllTasks(); 496 invalidatePageData(); 497 } 498 } 499 500 @Override 501 public void onClick(View v) { 502 // When we have exited all apps or are in transition, disregard clicks 503 if (!mLauncher.isAllAppsCustomizeOpen() || 504 mLauncher.getWorkspace().isSwitchingState()) return; 505 506 if (v instanceof PagedViewIcon) { 507 // Animate some feedback to the click 508 final ApplicationInfo appInfo = (ApplicationInfo) v.getTag(); 509 mLauncher.startActivitySafely(appInfo.intent, appInfo); 510 511 // Lock the drawable state to pressed until we return to Launcher 512 if (mPressedIcon != null) { 513 mPressedIcon.lockDrawableState(); 514 } 515 } else if (v instanceof PagedViewWidget) { 516 // Let the user know that they have to long press to add a widget 517 Toast.makeText(getContext(), R.string.long_press_widget_to_add, 518 Toast.LENGTH_SHORT).show(); 519 520 // Create a little animation to show that the widget can move 521 float offsetY = getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 522 final ImageView p = (ImageView) v.findViewById(R.id.widget_preview); 523 AnimatorSet bounce = new AnimatorSet(); 524 ValueAnimator tyuAnim = ObjectAnimator.ofFloat(p, "translationY", offsetY); 525 tyuAnim.setDuration(125); 526 ValueAnimator tydAnim = ObjectAnimator.ofFloat(p, "translationY", 0f); 527 tydAnim.setDuration(100); 528 bounce.play(tyuAnim).before(tydAnim); 529 bounce.setInterpolator(new AccelerateInterpolator()); 530 bounce.start(); 531 } 532 } 533 534 public boolean onKey(View v, int keyCode, KeyEvent event) { 535 return FocusHelper.handleAppsCustomizeKeyEvent(v, keyCode, event); 536 } 537 538 /* 539 * PagedViewWithDraggableItems implementation 540 */ 541 @Override 542 protected void determineDraggingStart(android.view.MotionEvent ev) { 543 // Disable dragging by pulling an app down for now. 544 } 545 546 private void beginDraggingApplication(View v) { 547 mLauncher.getWorkspace().onDragStartedWithItem(v); 548 mLauncher.getWorkspace().beginDragShared(v, this); 549 } 550 551 private void loadWidgetInBackground(final PendingAddWidgetInfo info) { 552 final AppWidgetProviderInfo pInfo = info.info; 553 if (pInfo.configure != null) { 554 return; 555 } 556 557 mBindWidgetRunnable = new Runnable() { 558 @Override 559 public void run() { 560 mWidgetLoadingId = mLauncher.getAppWidgetHost().allocateAppWidgetId(); 561 AppWidgetManager.getInstance(mLauncher).bindAppWidgetId(mWidgetLoadingId, 562 info.componentName); 563 mWidgetCleanupState = WIDGET_BOUND; 564 } 565 }; 566 post(mBindWidgetRunnable); 567 568 mInflateWidgetRunnable = new Runnable() { 569 @Override 570 public void run() { 571 AppWidgetHostView hostView = 572 mLauncher.getAppWidgetHost().createView(mContext, mWidgetLoadingId, pInfo); 573 info.boundWidget = hostView; 574 mWidgetCleanupState = WIDGET_INFLATED; 575 } 576 }; 577 post(mInflateWidgetRunnable); 578 } 579 580 @Override 581 public void onShortPress(View v) { 582 // We are anticipating a long press, and we use this time to load bind and instantiate 583 // the widget. This will need to be cleaned up if it turns out no long press occurs. 584 mCreateWidgetInfo = new PendingAddWidgetInfo((PendingAddWidgetInfo) v.getTag()); 585 loadWidgetInBackground(mCreateWidgetInfo); 586 } 587 588 @Override 589 public void cleanUpShortPress(View v) { 590 PendingAddWidgetInfo info = mCreateWidgetInfo; 591 mCreateWidgetInfo = null; 592 if (mWidgetCleanupState >= 0 && mWidgetLoadingId != -1) { 593 mLauncher.getAppWidgetHost().deleteAppWidgetId(mWidgetLoadingId); 594 } 595 if (mWidgetCleanupState == WIDGET_BOUND) { 596 removeCallbacks(mInflateWidgetRunnable); 597 } else if (mWidgetCleanupState == WIDGET_INFLATED) { 598 AppWidgetHostView widget = info.boundWidget; 599 int widgetId = widget.getAppWidgetId(); 600 mLauncher.getAppWidgetHost().deleteAppWidgetId(widgetId); 601 } 602 mWidgetCleanupState = WIDGET_NO_CLEANUP_REQUIRED; 603 mWidgetLoadingId = -1; 604 } 605 606 private void beginDraggingWidget(View v) { 607 mWidgetCleanupState = WIDGET_NO_CLEANUP_REQUIRED; 608 mWidgetLoadingId = -1; 609 610 // Get the widget preview as the drag representation 611 ImageView image = (ImageView) v.findViewById(R.id.widget_preview); 612 PendingAddItemInfo createItemInfo = (PendingAddItemInfo) v.getTag(); 613 614 // Compose the drag image 615 Bitmap preview; 616 Bitmap outline; 617 if (createItemInfo instanceof PendingAddWidgetInfo) { 618 PendingAddWidgetInfo createWidgetInfo = mCreateWidgetInfo; 619 createItemInfo = createWidgetInfo; 620 mCreateWidgetInfo = null; 621 int[] spanXY = mLauncher.getSpanForWidget(createWidgetInfo, null); 622 int[] size = mLauncher.getWorkspace().estimateItemSize(spanXY[0], 623 spanXY[1], createWidgetInfo, true); 624 createItemInfo.spanX = spanXY[0]; 625 createItemInfo.spanY = spanXY[1]; 626 627 preview = getWidgetPreview(createWidgetInfo.componentName, createWidgetInfo.previewImage, 628 createWidgetInfo.icon, spanXY[0], spanXY[1], size[0], size[1]); 629 } else { 630 // Workaround for the fact that we don't keep the original ResolveInfo associated with 631 // the shortcut around. To get the icon, we just render the preview image (which has 632 // the shortcut icon) to a new drag bitmap that clips the non-icon space. 633 preview = Bitmap.createBitmap(mWidgetPreviewIconPaddedDimension, 634 mWidgetPreviewIconPaddedDimension, Bitmap.Config.ARGB_8888); 635 Drawable d = image.getDrawable(); 636 mCanvas.setBitmap(preview); 637 d.draw(mCanvas); 638 mCanvas.setBitmap(null); 639 createItemInfo.spanX = createItemInfo.spanY = 1; 640 } 641 642 // We use a custom alpha clip table for the default widget previews 643 Paint alphaClipPaint = null; 644 if (createItemInfo instanceof PendingAddWidgetInfo) { 645 if (((PendingAddWidgetInfo) createItemInfo).previewImage != 0) { 646 MaskFilter alphaClipTable = TableMaskFilter.CreateClipTable(0, 255); 647 alphaClipPaint = new Paint(); 648 alphaClipPaint.setMaskFilter(alphaClipTable); 649 } 650 } 651 652 // Save the preview for the outline generation, then dim the preview 653 outline = Bitmap.createScaledBitmap(preview, preview.getWidth(), preview.getHeight(), 654 false); 655 mCanvas.setBitmap(preview); 656 mCanvas.drawColor(mDragViewMultiplyColor, PorterDuff.Mode.MULTIPLY); 657 mCanvas.setBitmap(null); 658 659 // Start the drag 660 alphaClipPaint = null; 661 mLauncher.lockScreenOrientationOnLargeUI(); 662 mLauncher.getWorkspace().onDragStartedWithItem(createItemInfo, outline, alphaClipPaint); 663 mDragController.startDrag(image, preview, this, createItemInfo, 664 DragController.DRAG_ACTION_COPY, null); 665 outline.recycle(); 666 preview.recycle(); 667 } 668 669 @Override 670 protected boolean beginDragging(final View v) { 671 if (!super.beginDragging(v)) return false; 672 673 if (v instanceof PagedViewIcon) { 674 beginDraggingApplication(v); 675 } else if (v instanceof PagedViewWidget) { 676 beginDraggingWidget(v); 677 } 678 679 // We delay entering spring-loaded mode slightly to make sure the UI 680 // thready is free of any work. 681 postDelayed(new Runnable() { 682 @Override 683 public void run() { 684 // We don't enter spring-loaded mode if the drag has been cancelled 685 if (mLauncher.getDragController().isDragging()) { 686 // Dismiss the cling 687 mLauncher.dismissAllAppsCling(null); 688 689 // Reset the alpha on the dragged icon before we drag 690 resetDrawableState(); 691 692 // Go into spring loaded mode (must happen before we startDrag()) 693 mLauncher.enterSpringLoadedDragMode(); 694 } 695 } 696 },150); 697 698 return true; 699 } 700 701 private void endDragging(View target, boolean success) { 702 mLauncher.getWorkspace().onDragStopped(success); 703 if (!success || (target != mLauncher.getWorkspace() && 704 !(target instanceof DeleteDropTarget))) { 705 // Exit spring loaded mode if we have not successfully dropped or have not handled the 706 // drop in Workspace 707 mLauncher.exitSpringLoadedDragMode(); 708 } 709 mLauncher.unlockScreenOrientationOnLargeUI(); 710 } 711 712 @Override 713 public void onDropCompleted(View target, DragObject d, boolean success) { 714 endDragging(target, success); 715 716 // Display an error message if the drag failed due to there not being enough space on the 717 // target layout we were dropping on. 718 if (!success) { 719 boolean showOutOfSpaceMessage = false; 720 if (target instanceof Workspace) { 721 int currentScreen = mLauncher.getCurrentWorkspaceScreen(); 722 Workspace workspace = (Workspace) target; 723 CellLayout layout = (CellLayout) workspace.getChildAt(currentScreen); 724 ItemInfo itemInfo = (ItemInfo) d.dragInfo; 725 if (layout != null) { 726 layout.calculateSpans(itemInfo); 727 showOutOfSpaceMessage = 728 !layout.findCellForSpan(null, itemInfo.spanX, itemInfo.spanY); 729 } 730 } 731 if (showOutOfSpaceMessage) { 732 mLauncher.showOutOfSpaceMessage(); 733 } 734 } 735 } 736 737 @Override 738 protected void onDetachedFromWindow() { 739 super.onDetachedFromWindow(); 740 cancelAllTasks(); 741 } 742 743 public void clearAllWidgetPages() { 744 cancelAllTasks(); 745 int count = getChildCount(); 746 for (int i = 0; i < count; i++) { 747 View v = getPageAt(i); 748 if (v instanceof PagedViewGridLayout) { 749 ((PagedViewGridLayout) v).removeAllViewsOnPage(); 750 mDirtyPageContent.set(i, true); 751 } 752 } 753 } 754 755 private void cancelAllTasks() { 756 // Clean up all the async tasks 757 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 758 while (iter.hasNext()) { 759 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 760 task.cancel(false); 761 iter.remove(); 762 } 763 } 764 765 public void setContentType(ContentType type) { 766 if (type == ContentType.Widgets) { 767 invalidatePageData(mNumAppsPages, true); 768 } else if (type == ContentType.Applications) { 769 invalidatePageData(0, true); 770 } 771 } 772 773 protected void snapToPage(int whichPage, int delta, int duration) { 774 super.snapToPage(whichPage, delta, duration); 775 updateCurrentTab(whichPage); 776 777 // Update the thread priorities given the direction lookahead 778 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 779 while (iter.hasNext()) { 780 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 781 int pageIndex = task.page + mNumAppsPages; 782 if ((mNextPage > mCurrentPage && pageIndex >= mCurrentPage) || 783 (mNextPage < mCurrentPage && pageIndex <= mCurrentPage)) { 784 task.setThreadPriority(getThreadPriorityForPage(pageIndex)); 785 } else { 786 task.setThreadPriority(Process.THREAD_PRIORITY_LOWEST); 787 } 788 } 789 } 790 791 private void updateCurrentTab(int currentPage) { 792 AppsCustomizeTabHost tabHost = getTabHost(); 793 if (tabHost != null) { 794 String tag = tabHost.getCurrentTabTag(); 795 if (tag != null) { 796 if (currentPage >= mNumAppsPages && 797 !tag.equals(tabHost.getTabTagForContentType(ContentType.Widgets))) { 798 tabHost.setCurrentTabFromContent(ContentType.Widgets); 799 } else if (currentPage < mNumAppsPages && 800 !tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 801 tabHost.setCurrentTabFromContent(ContentType.Applications); 802 } 803 } 804 } 805 } 806 807 /* 808 * Apps PagedView implementation 809 */ 810 private void setVisibilityOnChildren(ViewGroup layout, int visibility) { 811 int childCount = layout.getChildCount(); 812 for (int i = 0; i < childCount; ++i) { 813 layout.getChildAt(i).setVisibility(visibility); 814 } 815 } 816 private void setupPage(PagedViewCellLayout layout) { 817 layout.setCellCount(mCellCountX, mCellCountY); 818 layout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 819 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 820 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 821 822 // Note: We force a measure here to get around the fact that when we do layout calculations 823 // immediately after syncing, we don't have a proper width. That said, we already know the 824 // expected page width, so we can actually optimize by hiding all the TextView-based 825 // children that are expensive to measure, and let that happen naturally later. 826 setVisibilityOnChildren(layout, View.GONE); 827 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 828 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 829 layout.setMinimumWidth(getPageContentWidth()); 830 layout.measure(widthSpec, heightSpec); 831 setVisibilityOnChildren(layout, View.VISIBLE); 832 } 833 834 public void syncAppsPageItems(int page, boolean immediate) { 835 // ensure that we have the right number of items on the pages 836 int numCells = mCellCountX * mCellCountY; 837 int startIndex = page * numCells; 838 int endIndex = Math.min(startIndex + numCells, mApps.size()); 839 PagedViewCellLayout layout = (PagedViewCellLayout) getPageAt(page); 840 841 layout.removeAllViewsOnPage(); 842 ArrayList<Object> items = new ArrayList<Object>(); 843 ArrayList<Bitmap> images = new ArrayList<Bitmap>(); 844 for (int i = startIndex; i < endIndex; ++i) { 845 ApplicationInfo info = mApps.get(i); 846 PagedViewIcon icon = (PagedViewIcon) mLayoutInflater.inflate( 847 R.layout.apps_customize_application, layout, false); 848 icon.applyFromApplicationInfo(info, true, this); 849 icon.setOnClickListener(this); 850 icon.setOnLongClickListener(this); 851 icon.setOnTouchListener(this); 852 icon.setOnKeyListener(this); 853 854 int index = i - startIndex; 855 int x = index % mCellCountX; 856 int y = index / mCellCountX; 857 layout.addViewToCellLayout(icon, -1, i, new PagedViewCellLayout.LayoutParams(x,y, 1,1)); 858 859 items.add(info); 860 images.add(info.iconBitmap); 861 } 862 863 layout.createHardwareLayers(); 864 } 865 866 /** 867 * A helper to return the priority for loading of the specified widget page. 868 */ 869 private int getWidgetPageLoadPriority(int page) { 870 // If we are snapping to another page, use that index as the target page index 871 int toPage = mCurrentPage; 872 if (mNextPage > -1) { 873 toPage = mNextPage; 874 } 875 876 // We use the distance from the target page as an initial guess of priority, but if there 877 // are no pages of higher priority than the page specified, then bump up the priority of 878 // the specified page. 879 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 880 int minPageDiff = Integer.MAX_VALUE; 881 while (iter.hasNext()) { 882 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 883 minPageDiff = Math.abs(task.page + mNumAppsPages - toPage); 884 } 885 886 int rawPageDiff = Math.abs(page - toPage); 887 return rawPageDiff - Math.min(rawPageDiff, minPageDiff); 888 } 889 /** 890 * Return the appropriate thread priority for loading for a given page (we give the current 891 * page much higher priority) 892 */ 893 private int getThreadPriorityForPage(int page) { 894 // TODO-APPS_CUSTOMIZE: detect number of cores and set thread priorities accordingly below 895 int pageDiff = getWidgetPageLoadPriority(page); 896 if (pageDiff <= 0) { 897 return Process.THREAD_PRIORITY_LESS_FAVORABLE; 898 } else if (pageDiff <= 1) { 899 return Process.THREAD_PRIORITY_LOWEST; 900 } else { 901 return Process.THREAD_PRIORITY_LOWEST; 902 } 903 } 904 private int getSleepForPage(int page) { 905 int pageDiff = getWidgetPageLoadPriority(page); 906 return Math.max(0, pageDiff * sPageSleepDelay); 907 } 908 /** 909 * Creates and executes a new AsyncTask to load a page of widget previews. 910 */ 911 private void prepareLoadWidgetPreviewsTask(int page, ArrayList<Object> widgets, 912 int cellWidth, int cellHeight, int cellCountX) { 913 914 // Prune all tasks that are no longer needed 915 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 916 while (iter.hasNext()) { 917 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 918 int taskPage = task.page + mNumAppsPages; 919 if (taskPage < getAssociatedLowerPageBound(mCurrentPage) || 920 taskPage > getAssociatedUpperPageBound(mCurrentPage)) { 921 task.cancel(false); 922 iter.remove(); 923 } else { 924 task.setThreadPriority(getThreadPriorityForPage(taskPage)); 925 } 926 } 927 928 // We introduce a slight delay to order the loading of side pages so that we don't thrash 929 final int sleepMs = getSleepForPage(page + mNumAppsPages); 930 AsyncTaskPageData pageData = new AsyncTaskPageData(page, widgets, cellWidth, cellHeight, 931 new AsyncTaskCallback() { 932 @Override 933 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 934 try { 935 try { 936 Thread.sleep(sleepMs); 937 } catch (Exception e) {} 938 loadWidgetPreviewsInBackground(task, data); 939 } finally { 940 if (task.isCancelled()) { 941 data.cleanup(true); 942 } 943 } 944 } 945 }, 946 new AsyncTaskCallback() { 947 @Override 948 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 949 try { 950 mRunningTasks.remove(task); 951 if (task.isCancelled()) return; 952 onSyncWidgetPageItems(data); 953 } finally { 954 data.cleanup(task.isCancelled()); 955 } 956 } 957 }); 958 959 // Ensure that the task is appropriately prioritized and runs in parallel 960 AppsCustomizeAsyncTask t = new AppsCustomizeAsyncTask(page, 961 AsyncTaskPageData.Type.LoadWidgetPreviewData); 962 t.setThreadPriority(getThreadPriorityForPage(page + mNumAppsPages)); 963 t.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, pageData); 964 mRunningTasks.add(t); 965 } 966 967 /* 968 * Widgets PagedView implementation 969 */ 970 private void setupPage(PagedViewGridLayout layout) { 971 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 972 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 973 974 // Note: We force a measure here to get around the fact that when we do layout calculations 975 // immediately after syncing, we don't have a proper width. 976 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 977 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 978 layout.setMinimumWidth(getPageContentWidth()); 979 layout.measure(widthSpec, heightSpec); 980 } 981 982 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h) { 983 renderDrawableToBitmap(d, bitmap, x, y, w, h, 1f, 0xFFFFFFFF); 984 } 985 986 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h, 987 float scale, int multiplyColor) { 988 if (bitmap != null) { 989 Canvas c = new Canvas(bitmap); 990 c.scale(scale, scale); 991 Rect oldBounds = d.copyBounds(); 992 d.setBounds(x, y, x + w, y + h); 993 d.draw(c); 994 d.setBounds(oldBounds); // Restore the bounds 995 if (multiplyColor != 0xFFFFFFFF) { 996 c.drawColor(mDragViewMultiplyColor, PorterDuff.Mode.MULTIPLY); 997 } 998 c.setBitmap(null); 999 } 1000 } 1001 private Bitmap getShortcutPreview(ResolveInfo info) { 1002 // Render the background 1003 int offset = 0; 1004 int bitmapSize = mAppIconSize; 1005 Bitmap preview = Bitmap.createBitmap(bitmapSize, bitmapSize, Config.ARGB_8888); 1006 1007 // Render the icon 1008 Drawable icon = mIconCache.getFullResIcon(info); 1009 renderDrawableToBitmap(icon, preview, offset, offset, mAppIconSize, mAppIconSize); 1010 return preview; 1011 } 1012 1013 private Bitmap getWidgetPreview(ComponentName provider, int previewImage, int iconId, 1014 int cellHSpan, int cellVSpan, int maxWidth, int maxHeight) { 1015 // Load the preview image if possible 1016 String packageName = provider.getPackageName(); 1017 if (maxWidth < 0) maxWidth = Integer.MAX_VALUE; 1018 if (maxHeight < 0) maxHeight = Integer.MAX_VALUE; 1019 1020 Drawable drawable = null; 1021 if (previewImage != 0) { 1022 drawable = mPackageManager.getDrawable(packageName, previewImage, null); 1023 if (drawable == null) { 1024 Log.w(LOG_TAG, "Can't load widget preview drawable 0x" + 1025 Integer.toHexString(previewImage) + " for provider: " + provider); 1026 } 1027 } 1028 1029 int bitmapWidth; 1030 int bitmapHeight; 1031 boolean widgetPreviewExists = (drawable != null); 1032 if (widgetPreviewExists) { 1033 bitmapWidth = drawable.getIntrinsicWidth(); 1034 bitmapHeight = drawable.getIntrinsicHeight(); 1035 1036 // Cap the size so widget previews don't appear larger than the actual widget 1037 maxWidth = Math.min(maxWidth, mWidgetSpacingLayout.estimateCellWidth(cellHSpan)); 1038 maxHeight = Math.min(maxHeight, mWidgetSpacingLayout.estimateCellHeight(cellVSpan)); 1039 } else { 1040 // Determine the size of the bitmap for the preview image we will generate 1041 // TODO: This actually uses the apps customize cell layout params, where as we make want 1042 // the Workspace params for more accuracy. 1043 bitmapWidth = mWidgetSpacingLayout.estimateCellWidth(cellHSpan); 1044 bitmapHeight = mWidgetSpacingLayout.estimateCellHeight(cellVSpan); 1045 if (cellHSpan == cellVSpan) { 1046 // For square widgets, we just have a fixed size for 1x1 and larger-than-1x1 1047 int minOffset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 1048 if (cellHSpan <= 1) { 1049 bitmapWidth = bitmapHeight = mAppIconSize + 2 * minOffset; 1050 } else { 1051 bitmapWidth = bitmapHeight = mAppIconSize + 4 * minOffset; 1052 } 1053 } 1054 } 1055 1056 float scale = 1f; 1057 if (bitmapWidth > maxWidth) { 1058 scale = maxWidth / (float) bitmapWidth; 1059 } 1060 if (bitmapHeight * scale > maxHeight) { 1061 scale = maxHeight / (float) bitmapHeight; 1062 } 1063 if (scale != 1f) { 1064 bitmapWidth = (int) (scale * bitmapWidth); 1065 bitmapHeight = (int) (scale * bitmapHeight); 1066 } 1067 1068 Bitmap preview = Bitmap.createBitmap(bitmapWidth, bitmapHeight, Config.ARGB_8888); 1069 1070 if (widgetPreviewExists) { 1071 renderDrawableToBitmap(drawable, preview, 0, 0, bitmapWidth, bitmapHeight); 1072 } else { 1073 // Generate a preview image if we couldn't load one 1074 int minOffset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 1075 int smallestSide = Math.min(bitmapWidth, bitmapHeight); 1076 float iconScale = Math.min((float) smallestSide / (mAppIconSize + 2 * minOffset), 1f); 1077 if (cellHSpan != 1 || cellVSpan != 1) { 1078 renderDrawableToBitmap(mDefaultWidgetBackground, preview, 0, 0, bitmapWidth, 1079 bitmapHeight); 1080 } 1081 1082 // Draw the icon in the top left corner 1083 try { 1084 Drawable icon = null; 1085 int hoffset = (int) (bitmapWidth / 2 - mAppIconSize * iconScale / 2); 1086 int yoffset = (int) (bitmapHeight / 2 - mAppIconSize * iconScale / 2); 1087 if (iconId > 0) icon = mIconCache.getFullResIcon(packageName, iconId); 1088 Resources resources = mLauncher.getResources(); 1089 if (icon == null) icon = resources.getDrawable(R.drawable.ic_launcher_application); 1090 1091 renderDrawableToBitmap(icon, preview, hoffset, yoffset, 1092 (int) (mAppIconSize * iconScale), 1093 (int) (mAppIconSize * iconScale)); 1094 } catch (Resources.NotFoundException e) {} 1095 } 1096 return preview; 1097 } 1098 1099 public void syncWidgetPageItems(final int page, final boolean immediate) { 1100 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 1101 1102 // Calculate the dimensions of each cell we are giving to each widget 1103 final ArrayList<Object> items = new ArrayList<Object>(); 1104 int contentWidth = mWidgetSpacingLayout.getContentWidth(); 1105 final int cellWidth = ((contentWidth - mPageLayoutPaddingLeft - mPageLayoutPaddingRight 1106 - ((mWidgetCountX - 1) * mWidgetWidthGap)) / mWidgetCountX); 1107 int contentHeight = mWidgetSpacingLayout.getContentHeight(); 1108 final int cellHeight = ((contentHeight - mPageLayoutPaddingTop - mPageLayoutPaddingBottom 1109 - ((mWidgetCountY - 1) * mWidgetHeightGap)) / mWidgetCountY); 1110 1111 // Prepare the set of widgets to load previews for in the background 1112 int offset = page * numItemsPerPage; 1113 for (int i = offset; i < Math.min(offset + numItemsPerPage, mWidgets.size()); ++i) { 1114 items.add(mWidgets.get(i)); 1115 } 1116 1117 // Prepopulate the pages with the other widget info, and fill in the previews later 1118 final PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page + mNumAppsPages); 1119 layout.setColumnCount(layout.getCellCountX()); 1120 for (int i = 0; i < items.size(); ++i) { 1121 Object rawInfo = items.get(i); 1122 PendingAddItemInfo createItemInfo = null; 1123 PagedViewWidget widget = (PagedViewWidget) mLayoutInflater.inflate( 1124 R.layout.apps_customize_widget, layout, false); 1125 if (rawInfo instanceof AppWidgetProviderInfo) { 1126 // Fill in the widget information 1127 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1128 createItemInfo = new PendingAddWidgetInfo(info, null, null); 1129 int[] cellSpans = mLauncher.getSpanForWidget(info, null); 1130 widget.applyFromAppWidgetProviderInfo(info, -1, cellSpans); 1131 widget.setTag(createItemInfo); 1132 widget.setShortPressListener(this); 1133 } else if (rawInfo instanceof ResolveInfo) { 1134 // Fill in the shortcuts information 1135 ResolveInfo info = (ResolveInfo) rawInfo; 1136 createItemInfo = new PendingAddItemInfo(); 1137 createItemInfo.itemType = LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT; 1138 createItemInfo.componentName = new ComponentName(info.activityInfo.packageName, 1139 info.activityInfo.name); 1140 widget.applyFromResolveInfo(mPackageManager, info); 1141 widget.setTag(createItemInfo); 1142 } 1143 widget.setOnClickListener(this); 1144 widget.setOnLongClickListener(this); 1145 widget.setOnTouchListener(this); 1146 widget.setOnKeyListener(this); 1147 1148 // Layout each widget 1149 int ix = i % mWidgetCountX; 1150 int iy = i / mWidgetCountX; 1151 GridLayout.LayoutParams lp = new GridLayout.LayoutParams( 1152 GridLayout.spec(iy, GridLayout.LEFT), 1153 GridLayout.spec(ix, GridLayout.TOP)); 1154 lp.width = cellWidth; 1155 lp.height = cellHeight; 1156 lp.setGravity(Gravity.TOP | Gravity.LEFT); 1157 if (ix > 0) lp.leftMargin = mWidgetWidthGap; 1158 if (iy > 0) lp.topMargin = mWidgetHeightGap; 1159 layout.addView(widget, lp); 1160 } 1161 1162 // wait until a call on onLayout to start loading, because 1163 // PagedViewWidget.getPreviewSize() will return 0 if it hasn't been laid out 1164 // TODO: can we do a measure/layout immediately? 1165 layout.setOnLayoutListener(new Runnable() { 1166 public void run() { 1167 // Load the widget previews 1168 int maxPreviewWidth = cellWidth; 1169 int maxPreviewHeight = cellHeight; 1170 if (layout.getChildCount() > 0) { 1171 PagedViewWidget w = (PagedViewWidget) layout.getChildAt(0); 1172 int[] maxSize = w.getPreviewSize(); 1173 maxPreviewWidth = maxSize[0]; 1174 maxPreviewHeight = maxSize[1]; 1175 } 1176 if (immediate) { 1177 AsyncTaskPageData data = new AsyncTaskPageData(page, items, 1178 maxPreviewWidth, maxPreviewHeight, null, null); 1179 loadWidgetPreviewsInBackground(null, data); 1180 onSyncWidgetPageItems(data); 1181 } else { 1182 prepareLoadWidgetPreviewsTask(page, items, 1183 maxPreviewWidth, maxPreviewHeight, mWidgetCountX); 1184 } 1185 } 1186 }); 1187 } 1188 private void loadWidgetPreviewsInBackground(AppsCustomizeAsyncTask task, 1189 AsyncTaskPageData data) { 1190 // loadWidgetPreviewsInBackground can be called without a task to load a set of widget 1191 // previews synchronously 1192 if (task != null) { 1193 // Ensure that this task starts running at the correct priority 1194 task.syncThreadPriority(); 1195 } 1196 1197 // Load each of the widget/shortcut previews 1198 ArrayList<Object> items = data.items; 1199 ArrayList<Bitmap> images = data.generatedImages; 1200 int count = items.size(); 1201 for (int i = 0; i < count; ++i) { 1202 if (task != null) { 1203 // Ensure we haven't been cancelled yet 1204 if (task.isCancelled()) break; 1205 // Before work on each item, ensure that this task is running at the correct 1206 // priority 1207 task.syncThreadPriority(); 1208 } 1209 1210 Object rawInfo = items.get(i); 1211 if (rawInfo instanceof AppWidgetProviderInfo) { 1212 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1213 int[] cellSpans = mLauncher.getSpanForWidget(info, null); 1214 Bitmap b = getWidgetPreview(info.provider, info.previewImage, info.icon, 1215 cellSpans[0], cellSpans[1], data.maxImageWidth, data.maxImageHeight); 1216 images.add(b); 1217 } else if (rawInfo instanceof ResolveInfo) { 1218 // Fill in the shortcuts information 1219 ResolveInfo info = (ResolveInfo) rawInfo; 1220 images.add(getShortcutPreview(info)); 1221 } 1222 } 1223 } 1224 private void onSyncWidgetPageItems(AsyncTaskPageData data) { 1225 int page = data.page; 1226 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page + mNumAppsPages); 1227 1228 ArrayList<Object> items = data.items; 1229 int count = items.size(); 1230 for (int i = 0; i < count; ++i) { 1231 PagedViewWidget widget = (PagedViewWidget) layout.getChildAt(i); 1232 if (widget != null) { 1233 Bitmap preview = data.generatedImages.get(i); 1234 widget.applyPreview(new FastBitmapDrawable(preview), i); 1235 } 1236 } 1237 1238 layout.createHardwareLayer(); 1239 invalidate(); 1240 1241 // Update all thread priorities 1242 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1243 while (iter.hasNext()) { 1244 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1245 int pageIndex = task.page + mNumAppsPages; 1246 task.setThreadPriority(getThreadPriorityForPage(pageIndex)); 1247 } 1248 } 1249 1250 @Override 1251 public void syncPages() { 1252 removeAllViews(); 1253 cancelAllTasks(); 1254 1255 Context context = getContext(); 1256 for (int j = 0; j < mNumWidgetPages; ++j) { 1257 PagedViewGridLayout layout = new PagedViewGridLayout(context, mWidgetCountX, 1258 mWidgetCountY); 1259 setupPage(layout); 1260 addView(layout, new PagedViewGridLayout.LayoutParams(LayoutParams.MATCH_PARENT, 1261 LayoutParams.MATCH_PARENT)); 1262 } 1263 1264 for (int i = 0; i < mNumAppsPages; ++i) { 1265 PagedViewCellLayout layout = new PagedViewCellLayout(context); 1266 setupPage(layout); 1267 addView(layout); 1268 } 1269 } 1270 1271 @Override 1272 public void syncPageItems(int page, boolean immediate) { 1273 if (page < mNumAppsPages) { 1274 syncAppsPageItems(page, immediate); 1275 } else { 1276 syncWidgetPageItems(page - mNumAppsPages, immediate); 1277 } 1278 } 1279 1280 // We want our pages to be z-ordered such that the further a page is to the left, the higher 1281 // it is in the z-order. This is important to insure touch events are handled correctly. 1282 View getPageAt(int index) { 1283 return getChildAt(getChildCount() - index - 1); 1284 } 1285 1286 @Override 1287 protected int indexToPage(int index) { 1288 return getChildCount() - index - 1; 1289 } 1290 1291 // In apps customize, we have a scrolling effect which emulates pulling cards off of a stack. 1292 @Override 1293 protected void screenScrolled(int screenCenter) { 1294 super.screenScrolled(screenCenter); 1295 1296 for (int i = 0; i < getChildCount(); i++) { 1297 View v = getPageAt(i); 1298 if (v != null) { 1299 float scrollProgress = getScrollProgress(screenCenter, v, i); 1300 1301 float interpolatedProgress = 1302 mZInterpolator.getInterpolation(Math.abs(Math.min(scrollProgress, 0))); 1303 float scale = (1 - interpolatedProgress) + 1304 interpolatedProgress * TRANSITION_SCALE_FACTOR; 1305 float translationX = Math.min(0, scrollProgress) * v.getMeasuredWidth(); 1306 1307 float alpha; 1308 1309 if (!LauncherApplication.isScreenLarge() || scrollProgress < 0) { 1310 alpha = scrollProgress < 0 ? mAlphaInterpolator.getInterpolation( 1311 1 - Math.abs(scrollProgress)) : 1.0f; 1312 } else { 1313 // On large screens we need to fade the page as it nears its leftmost position 1314 alpha = mLeftScreenAlphaInterpolator.getInterpolation(1 - scrollProgress); 1315 } 1316 1317 v.setCameraDistance(mDensity * CAMERA_DISTANCE); 1318 int pageWidth = v.getMeasuredWidth(); 1319 int pageHeight = v.getMeasuredHeight(); 1320 1321 if (PERFORM_OVERSCROLL_ROTATION) { 1322 if (i == 0 && scrollProgress < 0) { 1323 // Overscroll to the left 1324 v.setPivotX(TRANSITION_PIVOT * pageWidth); 1325 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1326 scale = 1.0f; 1327 alpha = 1.0f; 1328 // On the first page, we don't want the page to have any lateral motion 1329 translationX = 0; 1330 } else if (i == getChildCount() - 1 && scrollProgress > 0) { 1331 // Overscroll to the right 1332 v.setPivotX((1 - TRANSITION_PIVOT) * pageWidth); 1333 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1334 scale = 1.0f; 1335 alpha = 1.0f; 1336 // On the last page, we don't want the page to have any lateral motion. 1337 translationX = 0; 1338 } else { 1339 v.setPivotY(pageHeight / 2.0f); 1340 v.setPivotX(pageWidth / 2.0f); 1341 v.setRotationY(0f); 1342 } 1343 } 1344 1345 v.setTranslationX(translationX); 1346 v.setScaleX(scale); 1347 v.setScaleY(scale); 1348 v.setAlpha(alpha); 1349 1350 // If the view has 0 alpha, we set it to be invisible so as to prevent 1351 // it from accepting touches 1352 if (alpha < ViewConfiguration.ALPHA_THRESHOLD) { 1353 v.setVisibility(INVISIBLE); 1354 } else if (v.getVisibility() != VISIBLE) { 1355 v.setVisibility(VISIBLE); 1356 } 1357 } 1358 } 1359 } 1360 1361 protected void overScroll(float amount) { 1362 acceleratedOverScroll(amount); 1363 } 1364 1365 /** 1366 * Used by the parent to get the content width to set the tab bar to 1367 * @return 1368 */ 1369 public int getPageContentWidth() { 1370 return mContentWidth; 1371 } 1372 1373 @Override 1374 protected void onPageEndMoving() { 1375 super.onPageEndMoving(); 1376 1377 // We reset the save index when we change pages so that it will be recalculated on next 1378 // rotation 1379 mSaveInstanceStateItemIndex = -1; 1380 } 1381 1382 /* 1383 * AllAppsView implementation 1384 */ 1385 @Override 1386 public void setup(Launcher launcher, DragController dragController) { 1387 mLauncher = launcher; 1388 mDragController = dragController; 1389 } 1390 @Override 1391 public void zoom(float zoom, boolean animate) { 1392 // TODO-APPS_CUSTOMIZE: Call back to mLauncher.zoomed() 1393 } 1394 @Override 1395 public boolean isVisible() { 1396 return (getVisibility() == VISIBLE); 1397 } 1398 @Override 1399 public boolean isAnimating() { 1400 return false; 1401 } 1402 @Override 1403 public void setApps(ArrayList<ApplicationInfo> list) { 1404 mApps = list; 1405 Collections.sort(mApps, LauncherModel.APP_NAME_COMPARATOR); 1406 updatePageCounts(); 1407 1408 // The next layout pass will trigger data-ready if both widgets and apps are set, so 1409 // request a layout to do this test and invalidate the page data when ready. 1410 if (testDataReady()) requestLayout(); 1411 } 1412 private void addAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1413 // We add it in place, in alphabetical order 1414 int count = list.size(); 1415 for (int i = 0; i < count; ++i) { 1416 ApplicationInfo info = list.get(i); 1417 int index = Collections.binarySearch(mApps, info, LauncherModel.APP_NAME_COMPARATOR); 1418 if (index < 0) { 1419 mApps.add(-(index + 1), info); 1420 } 1421 } 1422 } 1423 @Override 1424 public void addApps(ArrayList<ApplicationInfo> list) { 1425 addAppsWithoutInvalidate(list); 1426 updatePageCounts(); 1427 invalidatePageData(); 1428 } 1429 private int findAppByComponent(List<ApplicationInfo> list, ApplicationInfo item) { 1430 ComponentName removeComponent = item.intent.getComponent(); 1431 int length = list.size(); 1432 for (int i = 0; i < length; ++i) { 1433 ApplicationInfo info = list.get(i); 1434 if (info.intent.getComponent().equals(removeComponent)) { 1435 return i; 1436 } 1437 } 1438 return -1; 1439 } 1440 private void removeAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1441 // loop through all the apps and remove apps that have the same component 1442 int length = list.size(); 1443 for (int i = 0; i < length; ++i) { 1444 ApplicationInfo info = list.get(i); 1445 int removeIndex = findAppByComponent(mApps, info); 1446 if (removeIndex > -1) { 1447 mApps.remove(removeIndex); 1448 } 1449 } 1450 } 1451 @Override 1452 public void removeApps(ArrayList<ApplicationInfo> list) { 1453 removeAppsWithoutInvalidate(list); 1454 updatePageCounts(); 1455 invalidatePageData(); 1456 } 1457 @Override 1458 public void updateApps(ArrayList<ApplicationInfo> list) { 1459 // We remove and re-add the updated applications list because it's properties may have 1460 // changed (ie. the title), and this will ensure that the items will be in their proper 1461 // place in the list. 1462 removeAppsWithoutInvalidate(list); 1463 addAppsWithoutInvalidate(list); 1464 updatePageCounts(); 1465 1466 invalidatePageData(); 1467 } 1468 1469 @Override 1470 public void reset() { 1471 // If we have reset, then we should not continue to restore the previous state 1472 mSaveInstanceStateItemIndex = -1; 1473 1474 AppsCustomizeTabHost tabHost = getTabHost(); 1475 String tag = tabHost.getCurrentTabTag(); 1476 if (tag != null) { 1477 if (!tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 1478 tabHost.setCurrentTabFromContent(ContentType.Applications); 1479 } 1480 } 1481 1482 if (mCurrentPage != 0) { 1483 invalidatePageData(0); 1484 } 1485 } 1486 1487 private AppsCustomizeTabHost getTabHost() { 1488 return (AppsCustomizeTabHost) mLauncher.findViewById(R.id.apps_customize_pane); 1489 } 1490 1491 @Override 1492 public void dumpState() { 1493 // TODO: Dump information related to current list of Applications, Widgets, etc. 1494 ApplicationInfo.dumpApplicationInfoList(LOG_TAG, "mApps", mApps); 1495 dumpAppWidgetProviderInfoList(LOG_TAG, "mWidgets", mWidgets); 1496 } 1497 1498 private void dumpAppWidgetProviderInfoList(String tag, String label, 1499 ArrayList<Object> list) { 1500 Log.d(tag, label + " size=" + list.size()); 1501 for (Object i: list) { 1502 if (i instanceof AppWidgetProviderInfo) { 1503 AppWidgetProviderInfo info = (AppWidgetProviderInfo) i; 1504 Log.d(tag, " label=\"" + info.label + "\" previewImage=" + info.previewImage 1505 + " resizeMode=" + info.resizeMode + " configure=" + info.configure 1506 + " initialLayout=" + info.initialLayout 1507 + " minWidth=" + info.minWidth + " minHeight=" + info.minHeight); 1508 } else if (i instanceof ResolveInfo) { 1509 ResolveInfo info = (ResolveInfo) i; 1510 Log.d(tag, " label=\"" + info.loadLabel(mPackageManager) + "\" icon=" 1511 + info.icon); 1512 } 1513 } 1514 } 1515 1516 @Override 1517 public void surrender() { 1518 // TODO: If we are in the middle of any process (ie. for holographic outlines, etc) we 1519 // should stop this now. 1520 1521 // Stop all background tasks 1522 cancelAllTasks(); 1523 } 1524 1525 @Override 1526 public void iconPressed(PagedViewIcon icon) { 1527 // Reset the previously pressed icon and store a reference to the pressed icon so that 1528 // we can reset it on return to Launcher (in Launcher.onResume()) 1529 if (mPressedIcon != null) { 1530 mPressedIcon.resetDrawableState(); 1531 } 1532 mPressedIcon = icon; 1533 } 1534 1535 public void resetDrawableState() { 1536 if (mPressedIcon != null) { 1537 mPressedIcon.resetDrawableState(); 1538 mPressedIcon = null; 1539 } 1540 } 1541 1542 /* 1543 * We load an extra page on each side to prevent flashes from scrolling and loading of the 1544 * widget previews in the background with the AsyncTasks. 1545 */ 1546 final static int sLookBehindPageCount = 2; 1547 final static int sLookAheadPageCount = 2; 1548 protected int getAssociatedLowerPageBound(int page) { 1549 final int count = getChildCount(); 1550 int windowSize = Math.min(count, sLookBehindPageCount + sLookAheadPageCount + 1); 1551 int windowMinIndex = Math.max(Math.min(page - sLookBehindPageCount, count - windowSize), 0); 1552 return windowMinIndex; 1553 } 1554 protected int getAssociatedUpperPageBound(int page) { 1555 final int count = getChildCount(); 1556 int windowSize = Math.min(count, sLookBehindPageCount + sLookAheadPageCount + 1); 1557 int windowMaxIndex = Math.min(Math.max(page + sLookAheadPageCount, windowSize - 1), 1558 count - 1); 1559 return windowMaxIndex; 1560 } 1561 1562 @Override 1563 protected String getCurrentPageDescription() { 1564 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 1565 int stringId = R.string.default_scroll_format; 1566 int count = 0; 1567 1568 if (page < mNumAppsPages) { 1569 stringId = R.string.apps_customize_apps_scroll_format; 1570 count = mNumAppsPages; 1571 } else { 1572 page -= mNumAppsPages; 1573 stringId = R.string.apps_customize_widgets_scroll_format; 1574 count = mNumWidgetPages; 1575 } 1576 1577 return String.format(mContext.getString(stringId), page + 1, count); 1578 } 1579} 1580