RenderSessionImpl.java revision 300f4893351a9974fa3380c513b29d4a7883cd74
1/* 2 * Copyright (C) 2010 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.layoutlib.bridge.impl; 18 19import com.android.ide.common.rendering.api.AdapterBinding; 20import com.android.ide.common.rendering.api.HardwareConfig; 21import com.android.ide.common.rendering.api.IAnimationListener; 22import com.android.ide.common.rendering.api.ILayoutPullParser; 23import com.android.ide.common.rendering.api.LayoutlibCallback; 24import com.android.ide.common.rendering.api.RenderResources; 25import com.android.ide.common.rendering.api.RenderSession; 26import com.android.ide.common.rendering.api.ResourceReference; 27import com.android.ide.common.rendering.api.ResourceValue; 28import com.android.ide.common.rendering.api.Result; 29import com.android.ide.common.rendering.api.Result.Status; 30import com.android.ide.common.rendering.api.SessionParams; 31import com.android.ide.common.rendering.api.SessionParams.RenderingMode; 32import com.android.ide.common.rendering.api.ViewInfo; 33import com.android.ide.common.rendering.api.ViewType; 34import com.android.internal.view.menu.ActionMenuItemView; 35import com.android.internal.view.menu.BridgeMenuItemImpl; 36import com.android.internal.view.menu.IconMenuItemView; 37import com.android.internal.view.menu.ListMenuItemView; 38import com.android.internal.view.menu.MenuItemImpl; 39import com.android.internal.view.menu.MenuView; 40import com.android.layoutlib.bridge.Bridge; 41import com.android.layoutlib.bridge.android.BridgeContext; 42import com.android.layoutlib.bridge.android.BridgeLayoutParamsMapAttributes; 43import com.android.layoutlib.bridge.android.BridgeXmlBlockParser; 44import com.android.layoutlib.bridge.android.RenderParamsFlags; 45import com.android.layoutlib.bridge.android.support.DesignLibUtil; 46import com.android.layoutlib.bridge.impl.binding.FakeAdapter; 47import com.android.layoutlib.bridge.impl.binding.FakeExpandableAdapter; 48import com.android.resources.ResourceType; 49import com.android.util.Pair; 50 51import android.animation.AnimationThread; 52import android.animation.Animator; 53import android.animation.AnimatorInflater; 54import android.animation.LayoutTransition; 55import android.animation.LayoutTransition.TransitionListener; 56import android.annotation.NonNull; 57import android.annotation.Nullable; 58import android.app.Fragment_Delegate; 59import android.graphics.Bitmap; 60import android.graphics.Bitmap_Delegate; 61import android.graphics.Canvas; 62import android.preference.Preference_Delegate; 63import android.view.AttachInfo_Accessor; 64import android.view.BridgeInflater; 65import android.view.IWindowManager; 66import android.view.IWindowManagerImpl; 67import android.view.Surface; 68import android.view.View; 69import android.view.View.MeasureSpec; 70import android.view.ViewGroup; 71import android.view.ViewGroup.LayoutParams; 72import android.view.ViewGroup.MarginLayoutParams; 73import android.view.ViewParent; 74import android.view.WindowManagerGlobal_Delegate; 75import android.widget.AbsListView; 76import android.widget.AbsSpinner; 77import android.widget.ActionMenuView; 78import android.widget.AdapterView; 79import android.widget.ExpandableListView; 80import android.widget.FrameLayout; 81import android.widget.LinearLayout; 82import android.widget.ListView; 83import android.widget.QuickContactBadge; 84import android.widget.TabHost; 85import android.widget.TabHost.TabSpec; 86import android.widget.TabWidget; 87 88import java.awt.AlphaComposite; 89import java.awt.Color; 90import java.awt.Graphics2D; 91import java.awt.image.BufferedImage; 92import java.util.ArrayList; 93import java.util.List; 94import java.util.Map; 95 96import static com.android.ide.common.rendering.api.Result.Status.ERROR_ANIM_NOT_FOUND; 97import static com.android.ide.common.rendering.api.Result.Status.ERROR_INFLATION; 98import static com.android.ide.common.rendering.api.Result.Status.ERROR_NOT_INFLATED; 99import static com.android.ide.common.rendering.api.Result.Status.ERROR_UNKNOWN; 100import static com.android.ide.common.rendering.api.Result.Status.ERROR_VIEWGROUP_NO_CHILDREN; 101import static com.android.ide.common.rendering.api.Result.Status.SUCCESS; 102import static com.android.layoutlib.bridge.util.ReflectionUtils.isInstanceOf; 103 104/** 105 * Class implementing the render session. 106 * <p/> 107 * A session is a stateful representation of a layout file. It is initialized with data coming 108 * through the {@link Bridge} API to inflate the layout. Further actions and rendering can then 109 * be done on the layout. 110 */ 111public class RenderSessionImpl extends RenderAction<SessionParams> { 112 113 // scene state 114 private RenderSession mScene; 115 private BridgeXmlBlockParser mBlockParser; 116 private BridgeInflater mInflater; 117 private ViewGroup mViewRoot; 118 private FrameLayout mContentRoot; 119 private Canvas mCanvas; 120 private int mMeasuredScreenWidth = -1; 121 private int mMeasuredScreenHeight = -1; 122 private boolean mIsAlphaChannelImage; 123 124 // information being returned through the API 125 private BufferedImage mImage; 126 private List<ViewInfo> mViewInfoList; 127 private List<ViewInfo> mSystemViewInfoList; 128 private Layout.Builder mLayoutBuilder; 129 130 private static final class PostInflateException extends Exception { 131 private static final long serialVersionUID = 1L; 132 133 public PostInflateException(String message) { 134 super(message); 135 } 136 } 137 138 /** 139 * Creates a layout scene with all the information coming from the layout bridge API. 140 * <p> 141 * This <b>must</b> be followed by a call to {@link RenderSessionImpl#init(long)}, 142 * which act as a 143 * call to {@link RenderSessionImpl#acquire(long)} 144 * 145 * @see Bridge#createSession(SessionParams) 146 */ 147 public RenderSessionImpl(SessionParams params) { 148 super(new SessionParams(params)); 149 } 150 151 /** 152 * Initializes and acquires the scene, creating various Android objects such as context, 153 * inflater, and parser. 154 * 155 * @param timeout the time to wait if another rendering is happening. 156 * 157 * @return whether the scene was prepared 158 * 159 * @see #acquire(long) 160 * @see #release() 161 */ 162 @Override 163 public Result init(long timeout) { 164 Result result = super.init(timeout); 165 if (!result.isSuccess()) { 166 return result; 167 } 168 169 SessionParams params = getParams(); 170 BridgeContext context = getContext(); 171 172 // use default of true in case it's not found to use alpha by default 173 mIsAlphaChannelImage = ResourceHelper.getBooleanThemeValue(params.getResources(), 174 "windowIsFloating", true, true); 175 176 mLayoutBuilder = new Layout.Builder(params, context); 177 178 // FIXME: find those out, and possibly add them to the render params 179 boolean hasNavigationBar = true; 180 //noinspection ConstantConditions 181 IWindowManager iwm = new IWindowManagerImpl(getContext().getConfiguration(), 182 context.getMetrics(), Surface.ROTATION_0, hasNavigationBar); 183 WindowManagerGlobal_Delegate.setWindowManagerService(iwm); 184 185 // build the inflater and parser. 186 mInflater = new BridgeInflater(context, params.getLayoutlibCallback()); 187 context.setBridgeInflater(mInflater); 188 189 mBlockParser = new BridgeXmlBlockParser(params.getLayoutDescription(), context, false); 190 191 return SUCCESS.createResult(); 192 } 193 194 /** 195 * Inflates the layout. 196 * <p> 197 * {@link #acquire(long)} must have been called before this. 198 * 199 * @throws IllegalStateException if the current context is different than the one owned by 200 * the scene, or if {@link #init(long)} was not called. 201 */ 202 public Result inflate() { 203 checkLock(); 204 205 try { 206 mViewRoot = new Layout(mLayoutBuilder); 207 mLayoutBuilder = null; // Done with the builder. 208 mContentRoot = ((Layout) mViewRoot).getContentRoot(); 209 SessionParams params = getParams(); 210 BridgeContext context = getContext(); 211 212 // Sets the project callback (custom view loader) to the fragment delegate so that 213 // it can instantiate the custom Fragment. 214 Fragment_Delegate.setLayoutlibCallback(params.getLayoutlibCallback()); 215 216 String rootTag = params.getFlag(RenderParamsFlags.FLAG_KEY_ROOT_TAG); 217 boolean isPreference = "PreferenceScreen".equals(rootTag); 218 View view; 219 if (isPreference) { 220 view = Preference_Delegate.inflatePreference(getContext(), mBlockParser, 221 mContentRoot); 222 } else { 223 view = mInflater.inflate(mBlockParser, mContentRoot); 224 } 225 226 // done with the parser, pop it. 227 context.popParser(); 228 229 Fragment_Delegate.setLayoutlibCallback(null); 230 231 // set the AttachInfo on the root view. 232 AttachInfo_Accessor.setAttachInfo(mViewRoot); 233 234 // post-inflate process. For now this supports TabHost/TabWidget 235 postInflateProcess(view, params.getLayoutlibCallback(), isPreference ? view : null); 236 mInflater.onDoneInflation(); 237 238 setActiveToolbar(view, context, params); 239 240 return SUCCESS.createResult(); 241 } catch (PostInflateException e) { 242 return ERROR_INFLATION.createResult(e.getMessage(), e); 243 } catch (Throwable e) { 244 // get the real cause of the exception. 245 Throwable t = e; 246 while (t.getCause() != null) { 247 t = t.getCause(); 248 } 249 250 return ERROR_INFLATION.createResult(t.getMessage(), t); 251 } 252 } 253 254 /** 255 * Renders the scene. 256 * <p> 257 * {@link #acquire(long)} must have been called before this. 258 * 259 * @param freshRender whether the render is a new one and should erase the existing bitmap (in 260 * the case where bitmaps are reused). This is typically needed when not playing 261 * animations.) 262 * 263 * @throws IllegalStateException if the current context is different than the one owned by 264 * the scene, or if {@link #acquire(long)} was not called. 265 * 266 * @see SessionParams#getRenderingMode() 267 * @see RenderSession#render(long) 268 */ 269 public Result render(boolean freshRender) { 270 checkLock(); 271 272 SessionParams params = getParams(); 273 274 try { 275 if (mViewRoot == null) { 276 return ERROR_NOT_INFLATED.createResult(); 277 } 278 279 RenderingMode renderingMode = params.getRenderingMode(); 280 HardwareConfig hardwareConfig = params.getHardwareConfig(); 281 282 // only do the screen measure when needed. 283 boolean newRenderSize = false; 284 if (mMeasuredScreenWidth == -1) { 285 newRenderSize = true; 286 mMeasuredScreenWidth = hardwareConfig.getScreenWidth(); 287 mMeasuredScreenHeight = hardwareConfig.getScreenHeight(); 288 289 if (renderingMode != RenderingMode.NORMAL) { 290 int widthMeasureSpecMode = renderingMode.isHorizExpand() ? 291 MeasureSpec.UNSPECIFIED // this lets us know the actual needed size 292 : MeasureSpec.EXACTLY; 293 int heightMeasureSpecMode = renderingMode.isVertExpand() ? 294 MeasureSpec.UNSPECIFIED // this lets us know the actual needed size 295 : MeasureSpec.EXACTLY; 296 297 // We used to compare the measured size of the content to the screen size but 298 // this does not work anymore due to the 2 following issues: 299 // - If the content is in a decor (system bar, title/action bar), the root view 300 // will not resize even with the UNSPECIFIED because of the embedded layout. 301 // - If there is no decor, but a dialog frame, then the dialog padding prevents 302 // comparing the size of the content to the screen frame (as it would not 303 // take into account the dialog padding). 304 305 // The solution is to first get the content size in a normal rendering, inside 306 // the decor or the dialog padding. 307 // Then measure only the content with UNSPECIFIED to see the size difference 308 // and apply this to the screen size. 309 310 // first measure the full layout, with EXACTLY to get the size of the 311 // content as it is inside the decor/dialog 312 @SuppressWarnings("deprecation") 313 Pair<Integer, Integer> exactMeasure = measureView( 314 mViewRoot, mContentRoot.getChildAt(0), 315 mMeasuredScreenWidth, MeasureSpec.EXACTLY, 316 mMeasuredScreenHeight, MeasureSpec.EXACTLY); 317 318 // now measure the content only using UNSPECIFIED (where applicable, based on 319 // the rendering mode). This will give us the size the content needs. 320 @SuppressWarnings("deprecation") 321 Pair<Integer, Integer> result = measureView( 322 mContentRoot, mContentRoot.getChildAt(0), 323 mMeasuredScreenWidth, widthMeasureSpecMode, 324 mMeasuredScreenHeight, heightMeasureSpecMode); 325 326 // now look at the difference and add what is needed. 327 if (renderingMode.isHorizExpand()) { 328 int measuredWidth = exactMeasure.getFirst(); 329 int neededWidth = result.getFirst(); 330 if (neededWidth > measuredWidth) { 331 mMeasuredScreenWidth += neededWidth - measuredWidth; 332 } 333 } 334 335 if (renderingMode.isVertExpand()) { 336 int measuredHeight = exactMeasure.getSecond(); 337 int neededHeight = result.getSecond(); 338 if (neededHeight > measuredHeight) { 339 mMeasuredScreenHeight += neededHeight - measuredHeight; 340 } 341 } 342 } 343 } 344 345 // measure again with the size we need 346 // This must always be done before the call to layout 347 measureView(mViewRoot, null /*measuredView*/, 348 mMeasuredScreenWidth, MeasureSpec.EXACTLY, 349 mMeasuredScreenHeight, MeasureSpec.EXACTLY); 350 351 // now do the layout. 352 mViewRoot.layout(0, 0, mMeasuredScreenWidth, mMeasuredScreenHeight); 353 354 handleScrolling(mViewRoot); 355 356 if (params.isLayoutOnly()) { 357 // delete the canvas and image to reset them on the next full rendering 358 mImage = null; 359 mCanvas = null; 360 } else { 361 AttachInfo_Accessor.dispatchOnPreDraw(mViewRoot); 362 363 // draw the views 364 // create the BufferedImage into which the layout will be rendered. 365 boolean newImage = false; 366 367 // When disableBitmapCaching is true, we do not reuse mImage and 368 // we create a new one in every render. 369 // This is useful when mImage is just a wrapper of Graphics2D so 370 // it doesn't get cached. 371 boolean disableBitmapCaching = Boolean.TRUE.equals(params.getFlag( 372 RenderParamsFlags.FLAG_KEY_DISABLE_BITMAP_CACHING)); 373 if (newRenderSize || mCanvas == null || disableBitmapCaching) { 374 if (params.getImageFactory() != null) { 375 mImage = params.getImageFactory().getImage( 376 mMeasuredScreenWidth, 377 mMeasuredScreenHeight); 378 } else { 379 mImage = new BufferedImage( 380 mMeasuredScreenWidth, 381 mMeasuredScreenHeight, 382 BufferedImage.TYPE_INT_ARGB); 383 newImage = true; 384 } 385 386 if (params.isBgColorOverridden()) { 387 // since we override the content, it's the same as if it was a new image. 388 newImage = true; 389 Graphics2D gc = mImage.createGraphics(); 390 gc.setColor(new Color(params.getOverrideBgColor(), true)); 391 gc.setComposite(AlphaComposite.Src); 392 gc.fillRect(0, 0, mMeasuredScreenWidth, mMeasuredScreenHeight); 393 gc.dispose(); 394 } 395 396 // create an Android bitmap around the BufferedImage 397 Bitmap bitmap = Bitmap_Delegate.createBitmap(mImage, 398 true /*isMutable*/, hardwareConfig.getDensity()); 399 400 if (mCanvas == null) { 401 // create a Canvas around the Android bitmap 402 mCanvas = new Canvas(bitmap); 403 } else { 404 mCanvas.setBitmap(bitmap); 405 } 406 mCanvas.setDensity(hardwareConfig.getDensity().getDpiValue()); 407 } 408 409 if (freshRender && !newImage) { 410 Graphics2D gc = mImage.createGraphics(); 411 gc.setComposite(AlphaComposite.Src); 412 413 gc.setColor(new Color(0x00000000, true)); 414 gc.fillRect(0, 0, 415 mMeasuredScreenWidth, mMeasuredScreenHeight); 416 417 // done 418 gc.dispose(); 419 } 420 421 mViewRoot.draw(mCanvas); 422 } 423 424 mSystemViewInfoList = visitAllChildren(mViewRoot, 0, params.getExtendedViewInfoMode(), 425 false); 426 427 // success! 428 return SUCCESS.createResult(); 429 } catch (Throwable e) { 430 // get the real cause of the exception. 431 Throwable t = e; 432 while (t.getCause() != null) { 433 t = t.getCause(); 434 } 435 436 return ERROR_UNKNOWN.createResult(t.getMessage(), t); 437 } 438 } 439 440 /** 441 * Executes {@link View#measure(int, int)} on a given view with the given parameters (used 442 * to create measure specs with {@link MeasureSpec#makeMeasureSpec(int, int)}. 443 * 444 * if <var>measuredView</var> is non null, the method returns a {@link Pair} of (width, height) 445 * for the view (using {@link View#getMeasuredWidth()} and {@link View#getMeasuredHeight()}). 446 * 447 * @param viewToMeasure the view on which to execute measure(). 448 * @param measuredView if non null, the view to query for its measured width/height. 449 * @param width the width to use in the MeasureSpec. 450 * @param widthMode the MeasureSpec mode to use for the width. 451 * @param height the height to use in the MeasureSpec. 452 * @param heightMode the MeasureSpec mode to use for the height. 453 * @return the measured width/height if measuredView is non-null, null otherwise. 454 */ 455 @SuppressWarnings("deprecation") // For the use of Pair 456 private Pair<Integer, Integer> measureView(ViewGroup viewToMeasure, View measuredView, 457 int width, int widthMode, int height, int heightMode) { 458 int w_spec = MeasureSpec.makeMeasureSpec(width, widthMode); 459 int h_spec = MeasureSpec.makeMeasureSpec(height, heightMode); 460 viewToMeasure.measure(w_spec, h_spec); 461 462 if (measuredView != null) { 463 return Pair.of(measuredView.getMeasuredWidth(), measuredView.getMeasuredHeight()); 464 } 465 466 return null; 467 } 468 469 /** 470 * Animate an object 471 * <p> 472 * {@link #acquire(long)} must have been called before this. 473 * 474 * @throws IllegalStateException if the current context is different than the one owned by 475 * the scene, or if {@link #acquire(long)} was not called. 476 * 477 * @see RenderSession#animate(Object, String, boolean, IAnimationListener) 478 */ 479 public Result animate(Object targetObject, String animationName, 480 boolean isFrameworkAnimation, IAnimationListener listener) { 481 checkLock(); 482 483 BridgeContext context = getContext(); 484 485 // find the animation file. 486 ResourceValue animationResource; 487 int animationId = 0; 488 if (isFrameworkAnimation) { 489 animationResource = context.getRenderResources().getFrameworkResource( 490 ResourceType.ANIMATOR, animationName); 491 if (animationResource != null) { 492 animationId = Bridge.getResourceId(ResourceType.ANIMATOR, animationName); 493 } 494 } else { 495 animationResource = context.getRenderResources().getProjectResource( 496 ResourceType.ANIMATOR, animationName); 497 if (animationResource != null) { 498 animationId = context.getLayoutlibCallback().getResourceId( 499 ResourceType.ANIMATOR, animationName); 500 } 501 } 502 503 if (animationResource != null) { 504 try { 505 Animator anim = AnimatorInflater.loadAnimator(context, animationId); 506 if (anim != null) { 507 anim.setTarget(targetObject); 508 509 new PlayAnimationThread(anim, this, animationName, listener).start(); 510 511 return SUCCESS.createResult(); 512 } 513 } catch (Exception e) { 514 // get the real cause of the exception. 515 Throwable t = e; 516 while (t.getCause() != null) { 517 t = t.getCause(); 518 } 519 520 return ERROR_UNKNOWN.createResult(t.getMessage(), t); 521 } 522 } 523 524 return ERROR_ANIM_NOT_FOUND.createResult(); 525 } 526 527 /** 528 * Insert a new child into an existing parent. 529 * <p> 530 * {@link #acquire(long)} must have been called before this. 531 * 532 * @throws IllegalStateException if the current context is different than the one owned by 533 * the scene, or if {@link #acquire(long)} was not called. 534 * 535 * @see RenderSession#insertChild(Object, ILayoutPullParser, int, IAnimationListener) 536 */ 537 public Result insertChild(final ViewGroup parentView, ILayoutPullParser childXml, 538 final int index, IAnimationListener listener) { 539 checkLock(); 540 541 BridgeContext context = getContext(); 542 543 // create a block parser for the XML 544 BridgeXmlBlockParser blockParser = new BridgeXmlBlockParser( 545 childXml, context, false /* platformResourceFlag */); 546 547 // inflate the child without adding it to the root since we want to control where it'll 548 // get added. We do pass the parentView however to ensure that the layoutParams will 549 // be created correctly. 550 final View child = mInflater.inflate(blockParser, parentView, false /*attachToRoot*/); 551 blockParser.ensurePopped(); 552 553 invalidateRenderingSize(); 554 555 if (listener != null) { 556 new AnimationThread(this, "insertChild", listener) { 557 558 @Override 559 public Result preAnimation() { 560 parentView.setLayoutTransition(new LayoutTransition()); 561 return addView(parentView, child, index); 562 } 563 564 @Override 565 public void postAnimation() { 566 parentView.setLayoutTransition(null); 567 } 568 }.start(); 569 570 // always return success since the real status will come through the listener. 571 return SUCCESS.createResult(child); 572 } 573 574 // add it to the parentView in the correct location 575 Result result = addView(parentView, child, index); 576 if (!result.isSuccess()) { 577 return result; 578 } 579 580 result = render(false /*freshRender*/); 581 if (result.isSuccess()) { 582 result = result.getCopyWithData(child); 583 } 584 585 return result; 586 } 587 588 /** 589 * Adds a given view to a given parent at a given index. 590 * 591 * @param parent the parent to receive the view 592 * @param view the view to add to the parent 593 * @param index the index where to do the add. 594 * 595 * @return a Result with {@link Status#SUCCESS} or 596 * {@link Status#ERROR_VIEWGROUP_NO_CHILDREN} if the given parent doesn't support 597 * adding views. 598 */ 599 private Result addView(ViewGroup parent, View view, int index) { 600 try { 601 parent.addView(view, index); 602 return SUCCESS.createResult(); 603 } catch (UnsupportedOperationException e) { 604 // looks like this is a view class that doesn't support children manipulation! 605 return ERROR_VIEWGROUP_NO_CHILDREN.createResult(); 606 } 607 } 608 609 /** 610 * Moves a view to a new parent at a given location 611 * <p> 612 * {@link #acquire(long)} must have been called before this. 613 * 614 * @throws IllegalStateException if the current context is different than the one owned by 615 * the scene, or if {@link #acquire(long)} was not called. 616 * 617 * @see RenderSession#moveChild(Object, Object, int, Map, IAnimationListener) 618 */ 619 public Result moveChild(final ViewGroup newParentView, final View childView, final int index, 620 Map<String, String> layoutParamsMap, final IAnimationListener listener) { 621 checkLock(); 622 623 invalidateRenderingSize(); 624 625 LayoutParams layoutParams = null; 626 if (layoutParamsMap != null) { 627 // need to create a new LayoutParams object for the new parent. 628 layoutParams = newParentView.generateLayoutParams( 629 new BridgeLayoutParamsMapAttributes(layoutParamsMap)); 630 } 631 632 // get the current parent of the view that needs to be moved. 633 final ViewGroup previousParent = (ViewGroup) childView.getParent(); 634 635 if (listener != null) { 636 final LayoutParams params = layoutParams; 637 638 // there is no support for animating views across layouts, so in case the new and old 639 // parent views are different we fake the animation through a no animation thread. 640 if (previousParent != newParentView) { 641 new Thread("not animated moveChild") { 642 @Override 643 public void run() { 644 Result result = moveView(previousParent, newParentView, childView, index, 645 params); 646 if (!result.isSuccess()) { 647 listener.done(result); 648 } 649 650 // ready to do the work, acquire the scene. 651 result = acquire(250); 652 if (!result.isSuccess()) { 653 listener.done(result); 654 return; 655 } 656 657 try { 658 result = render(false /*freshRender*/); 659 if (result.isSuccess()) { 660 listener.onNewFrame(RenderSessionImpl.this.getSession()); 661 } 662 } finally { 663 release(); 664 } 665 666 listener.done(result); 667 } 668 }.start(); 669 } else { 670 new AnimationThread(this, "moveChild", listener) { 671 672 @Override 673 public Result preAnimation() { 674 // set up the transition for the parent. 675 LayoutTransition transition = new LayoutTransition(); 676 previousParent.setLayoutTransition(transition); 677 678 // tweak the animation durations and start delays (to match the duration of 679 // animation playing just before). 680 // Note: Cannot user Animation.setDuration() directly. Have to set it 681 // on the LayoutTransition. 682 transition.setDuration(LayoutTransition.DISAPPEARING, 100); 683 // CHANGE_DISAPPEARING plays after DISAPPEARING 684 transition.setStartDelay(LayoutTransition.CHANGE_DISAPPEARING, 100); 685 686 transition.setDuration(LayoutTransition.CHANGE_DISAPPEARING, 100); 687 688 transition.setDuration(LayoutTransition.CHANGE_APPEARING, 100); 689 // CHANGE_APPEARING plays after CHANGE_APPEARING 690 transition.setStartDelay(LayoutTransition.APPEARING, 100); 691 692 transition.setDuration(LayoutTransition.APPEARING, 100); 693 694 return moveView(previousParent, newParentView, childView, index, params); 695 } 696 697 @Override 698 public void postAnimation() { 699 previousParent.setLayoutTransition(null); 700 newParentView.setLayoutTransition(null); 701 } 702 }.start(); 703 } 704 705 // always return success since the real status will come through the listener. 706 return SUCCESS.createResult(layoutParams); 707 } 708 709 Result result = moveView(previousParent, newParentView, childView, index, layoutParams); 710 if (!result.isSuccess()) { 711 return result; 712 } 713 714 result = render(false /*freshRender*/); 715 if (layoutParams != null && result.isSuccess()) { 716 result = result.getCopyWithData(layoutParams); 717 } 718 719 return result; 720 } 721 722 /** 723 * Moves a View from its current parent to a new given parent at a new given location, with 724 * an optional new {@link LayoutParams} instance 725 * 726 * @param previousParent the previous parent, still owning the child at the time of the call. 727 * @param newParent the new parent 728 * @param movedView the view to move 729 * @param index the new location in the new parent 730 * @param params an option (can be null) {@link LayoutParams} instance. 731 * 732 * @return a Result with {@link Status#SUCCESS} or 733 * {@link Status#ERROR_VIEWGROUP_NO_CHILDREN} if the given parent doesn't support 734 * adding views. 735 */ 736 private Result moveView(ViewGroup previousParent, final ViewGroup newParent, 737 final View movedView, final int index, final LayoutParams params) { 738 try { 739 // check if there is a transition on the previousParent. 740 LayoutTransition previousTransition = previousParent.getLayoutTransition(); 741 if (previousTransition != null) { 742 // in this case there is an animation. This means we have to wait for the child's 743 // parent reference to be null'ed out so that we can add it to the new parent. 744 // It is technically removed right before the DISAPPEARING animation is done (if 745 // the animation of this type is not null, otherwise it's after which is impossible 746 // to handle). 747 // Because there is no move animation, if the new parent is the same as the old 748 // parent, we need to wait until the CHANGE_DISAPPEARING animation is done before 749 // adding the child or the child will appear in its new location before the 750 // other children have made room for it. 751 752 // add a listener to the transition to be notified of the actual removal. 753 previousTransition.addTransitionListener(new TransitionListener() { 754 private int mChangeDisappearingCount = 0; 755 756 @Override 757 public void startTransition(LayoutTransition transition, ViewGroup container, 758 View view, int transitionType) { 759 if (transitionType == LayoutTransition.CHANGE_DISAPPEARING) { 760 mChangeDisappearingCount++; 761 } 762 } 763 764 @Override 765 public void endTransition(LayoutTransition transition, ViewGroup container, 766 View view, int transitionType) { 767 if (transitionType == LayoutTransition.CHANGE_DISAPPEARING) { 768 mChangeDisappearingCount--; 769 } 770 771 if (transitionType == LayoutTransition.CHANGE_DISAPPEARING && 772 mChangeDisappearingCount == 0) { 773 // add it to the parentView in the correct location 774 if (params != null) { 775 newParent.addView(movedView, index, params); 776 } else { 777 newParent.addView(movedView, index); 778 } 779 } 780 } 781 }); 782 783 // remove the view from the current parent. 784 previousParent.removeView(movedView); 785 786 // and return since adding the view to the new parent is done in the listener. 787 return SUCCESS.createResult(); 788 } else { 789 // standard code with no animation. pretty simple. 790 previousParent.removeView(movedView); 791 792 // add it to the parentView in the correct location 793 if (params != null) { 794 newParent.addView(movedView, index, params); 795 } else { 796 newParent.addView(movedView, index); 797 } 798 799 return SUCCESS.createResult(); 800 } 801 } catch (UnsupportedOperationException e) { 802 // looks like this is a view class that doesn't support children manipulation! 803 return ERROR_VIEWGROUP_NO_CHILDREN.createResult(); 804 } 805 } 806 807 /** 808 * Removes a child from its current parent. 809 * <p> 810 * {@link #acquire(long)} must have been called before this. 811 * 812 * @throws IllegalStateException if the current context is different than the one owned by 813 * the scene, or if {@link #acquire(long)} was not called. 814 * 815 * @see RenderSession#removeChild(Object, IAnimationListener) 816 */ 817 public Result removeChild(final View childView, IAnimationListener listener) { 818 checkLock(); 819 820 invalidateRenderingSize(); 821 822 final ViewGroup parent = (ViewGroup) childView.getParent(); 823 824 if (listener != null) { 825 new AnimationThread(this, "moveChild", listener) { 826 827 @Override 828 public Result preAnimation() { 829 parent.setLayoutTransition(new LayoutTransition()); 830 return removeView(parent, childView); 831 } 832 833 @Override 834 public void postAnimation() { 835 parent.setLayoutTransition(null); 836 } 837 }.start(); 838 839 // always return success since the real status will come through the listener. 840 return SUCCESS.createResult(); 841 } 842 843 Result result = removeView(parent, childView); 844 if (!result.isSuccess()) { 845 return result; 846 } 847 848 return render(false /*freshRender*/); 849 } 850 851 /** 852 * Removes a given view from its current parent. 853 * 854 * @param view the view to remove from its parent 855 * 856 * @return a Result with {@link Status#SUCCESS} or 857 * {@link Status#ERROR_VIEWGROUP_NO_CHILDREN} if the given parent doesn't support 858 * adding views. 859 */ 860 private Result removeView(ViewGroup parent, View view) { 861 try { 862 parent.removeView(view); 863 return SUCCESS.createResult(); 864 } catch (UnsupportedOperationException e) { 865 // looks like this is a view class that doesn't support children manipulation! 866 return ERROR_VIEWGROUP_NO_CHILDREN.createResult(); 867 } 868 } 869 870 /** 871 * Post process on a view hierarchy that was just inflated. 872 * <p/> 873 * At the moment this only supports TabHost: If {@link TabHost} is detected, look for the 874 * {@link TabWidget}, and the corresponding {@link FrameLayout} and make new tabs automatically 875 * based on the content of the {@link FrameLayout}. 876 * @param view the root view to process. 877 * @param layoutlibCallback callback to the project. 878 * @param skip the view and it's children are not processed. 879 */ 880 @SuppressWarnings("deprecation") // For the use of Pair 881 private void postInflateProcess(View view, LayoutlibCallback layoutlibCallback, View skip) 882 throws PostInflateException { 883 if (view == skip) { 884 return; 885 } 886 if (view instanceof TabHost) { 887 setupTabHost((TabHost) view, layoutlibCallback); 888 } else if (view instanceof QuickContactBadge) { 889 QuickContactBadge badge = (QuickContactBadge) view; 890 badge.setImageToDefault(); 891 } else if (view instanceof AdapterView<?>) { 892 // get the view ID. 893 int id = view.getId(); 894 895 BridgeContext context = getContext(); 896 897 // get a ResourceReference from the integer ID. 898 ResourceReference listRef = context.resolveId(id); 899 900 if (listRef != null) { 901 SessionParams params = getParams(); 902 AdapterBinding binding = params.getAdapterBindings().get(listRef); 903 904 // if there was no adapter binding, trying to get it from the call back. 905 if (binding == null) { 906 binding = layoutlibCallback.getAdapterBinding( 907 listRef, context.getViewKey(view), view); 908 } 909 910 if (binding != null) { 911 912 if (view instanceof AbsListView) { 913 if ((binding.getFooterCount() > 0 || binding.getHeaderCount() > 0) && 914 view instanceof ListView) { 915 ListView list = (ListView) view; 916 917 boolean skipCallbackParser = false; 918 919 int count = binding.getHeaderCount(); 920 for (int i = 0; i < count; i++) { 921 Pair<View, Boolean> pair = context.inflateView( 922 binding.getHeaderAt(i), 923 list, false, skipCallbackParser); 924 if (pair.getFirst() != null) { 925 list.addHeaderView(pair.getFirst()); 926 } 927 928 skipCallbackParser |= pair.getSecond(); 929 } 930 931 count = binding.getFooterCount(); 932 for (int i = 0; i < count; i++) { 933 Pair<View, Boolean> pair = context.inflateView( 934 binding.getFooterAt(i), 935 list, false, skipCallbackParser); 936 if (pair.getFirst() != null) { 937 list.addFooterView(pair.getFirst()); 938 } 939 940 skipCallbackParser |= pair.getSecond(); 941 } 942 } 943 944 if (view instanceof ExpandableListView) { 945 ((ExpandableListView) view).setAdapter( 946 new FakeExpandableAdapter(listRef, binding, layoutlibCallback)); 947 } else { 948 ((AbsListView) view).setAdapter( 949 new FakeAdapter(listRef, binding, layoutlibCallback)); 950 } 951 } else if (view instanceof AbsSpinner) { 952 ((AbsSpinner) view).setAdapter( 953 new FakeAdapter(listRef, binding, layoutlibCallback)); 954 } 955 } 956 } 957 } else if (view instanceof ViewGroup) { 958 mInflater.postInflateProcess(view); 959 ViewGroup group = (ViewGroup) view; 960 final int count = group.getChildCount(); 961 for (int c = 0; c < count; c++) { 962 View child = group.getChildAt(c); 963 postInflateProcess(child, layoutlibCallback, skip); 964 } 965 } 966 } 967 968 /** 969 * If the root layout is a CoordinatorLayout with an AppBar: 970 * Set the title of the AppBar to the title of the activity context. 971 */ 972 private void setActiveToolbar(View view, BridgeContext context, SessionParams params) { 973 View coordinatorLayout = findChildView(view, DesignLibUtil.CN_COORDINATOR_LAYOUT); 974 if (coordinatorLayout == null) { 975 return; 976 } 977 View appBar = findChildView(coordinatorLayout, DesignLibUtil.CN_APPBAR_LAYOUT); 978 if (appBar == null) { 979 return; 980 } 981 ViewGroup collapsingToolbar = 982 (ViewGroup) findChildView(appBar, DesignLibUtil.CN_COLLAPSING_TOOLBAR_LAYOUT); 983 if (collapsingToolbar == null) { 984 return; 985 } 986 if (!hasToolbar(collapsingToolbar)) { 987 return; 988 } 989 RenderResources res = context.getRenderResources(); 990 String title = params.getAppLabel(); 991 ResourceValue titleValue = res.findResValue(title, false); 992 if (titleValue != null && titleValue.getValue() != null) { 993 title = titleValue.getValue(); 994 } 995 DesignLibUtil.setTitle(collapsingToolbar, title); 996 } 997 998 private View findChildView(View view, String className) { 999 if (!(view instanceof ViewGroup)) { 1000 return null; 1001 } 1002 ViewGroup group = (ViewGroup) view; 1003 for (int i = 0; i < group.getChildCount(); i++) { 1004 if (isInstanceOf(group.getChildAt(i), className)) { 1005 return group.getChildAt(i); 1006 } 1007 } 1008 return null; 1009 } 1010 1011 private boolean hasToolbar(View collapsingToolbar) { 1012 if (!(collapsingToolbar instanceof ViewGroup)) { 1013 return false; 1014 } 1015 ViewGroup group = (ViewGroup) collapsingToolbar; 1016 for (int i = 0; i < group.getChildCount(); i++) { 1017 if (isInstanceOf(group.getChildAt(i), DesignLibUtil.CN_TOOLBAR)) { 1018 return true; 1019 } 1020 } 1021 return false; 1022 } 1023 1024 /** 1025 * Set the vertical scroll position on all the components with the "scrollY" attribute. If the 1026 * component supports nested scrolling attempt that first, then use the unconsumed scroll part 1027 * to scroll the content in the component. 1028 */ 1029 private void handleScrolling(View view) { 1030 BridgeContext context = getContext(); 1031 int scrollPos = context.getScrollYPos(view); 1032 if (scrollPos != 0) { 1033 if (view.isNestedScrollingEnabled()) { 1034 int[] consumed = new int[2]; 1035 if (view.startNestedScroll(DesignLibUtil.SCROLL_AXIS_VERTICAL)) { 1036 view.dispatchNestedPreScroll(0, scrollPos, consumed, null); 1037 view.dispatchNestedScroll(consumed[0], consumed[1], 0, scrollPos, null); 1038 view.stopNestedScroll(); 1039 scrollPos -= consumed[1]; 1040 } 1041 } 1042 if (scrollPos != 0) { 1043 view.scrollBy(0, scrollPos); 1044 } else { 1045 view.scrollBy(0, scrollPos); 1046 } 1047 } else { 1048 view.scrollBy(0, scrollPos); 1049 } 1050 1051 if (!(view instanceof ViewGroup)) { 1052 return; 1053 } 1054 ViewGroup group = (ViewGroup) view; 1055 for (int i = 0; i < group.getChildCount(); i++) { 1056 View child = group.getChildAt(i); 1057 handleScrolling(child); 1058 } 1059 } 1060 1061 /** 1062 * Sets up a {@link TabHost} object. 1063 * @param tabHost the TabHost to setup. 1064 * @param layoutlibCallback The project callback object to access the project R class. 1065 * @throws PostInflateException 1066 */ 1067 private void setupTabHost(TabHost tabHost, LayoutlibCallback layoutlibCallback) 1068 throws PostInflateException { 1069 // look for the TabWidget, and the FrameLayout. They have their own specific names 1070 View v = tabHost.findViewById(android.R.id.tabs); 1071 1072 if (v == null) { 1073 throw new PostInflateException( 1074 "TabHost requires a TabWidget with id \"android:id/tabs\".\n"); 1075 } 1076 1077 if (!(v instanceof TabWidget)) { 1078 throw new PostInflateException(String.format( 1079 "TabHost requires a TabWidget with id \"android:id/tabs\".\n" + 1080 "View found with id 'tabs' is '%s'", v.getClass().getCanonicalName())); 1081 } 1082 1083 v = tabHost.findViewById(android.R.id.tabcontent); 1084 1085 if (v == null) { 1086 // TODO: see if we can fake tabs even without the FrameLayout (same below when the frameLayout is empty) 1087 //noinspection SpellCheckingInspection 1088 throw new PostInflateException( 1089 "TabHost requires a FrameLayout with id \"android:id/tabcontent\"."); 1090 } 1091 1092 if (!(v instanceof FrameLayout)) { 1093 //noinspection SpellCheckingInspection 1094 throw new PostInflateException(String.format( 1095 "TabHost requires a FrameLayout with id \"android:id/tabcontent\".\n" + 1096 "View found with id 'tabcontent' is '%s'", v.getClass().getCanonicalName())); 1097 } 1098 1099 FrameLayout content = (FrameLayout)v; 1100 1101 // now process the content of the frameLayout and dynamically create tabs for it. 1102 final int count = content.getChildCount(); 1103 1104 // this must be called before addTab() so that the TabHost searches its TabWidget 1105 // and FrameLayout. 1106 tabHost.setup(); 1107 1108 if (count == 0) { 1109 // Create a dummy child to get a single tab 1110 TabSpec spec = tabHost.newTabSpec("tag") 1111 .setIndicator("Tab Label", tabHost.getResources() 1112 .getDrawable(android.R.drawable.ic_menu_info_details, null)) 1113 .setContent(new TabHost.TabContentFactory() { 1114 @Override 1115 public View createTabContent(String tag) { 1116 return new LinearLayout(getContext()); 1117 } 1118 }); 1119 tabHost.addTab(spec); 1120 } else { 1121 // for each child of the frameLayout, add a new TabSpec 1122 for (int i = 0 ; i < count ; i++) { 1123 View child = content.getChildAt(i); 1124 String tabSpec = String.format("tab_spec%d", i+1); 1125 @SuppressWarnings("ConstantConditions") // child cannot be null. 1126 int id = child.getId(); 1127 @SuppressWarnings("deprecation") 1128 Pair<ResourceType, String> resource = layoutlibCallback.resolveResourceId(id); 1129 String name; 1130 if (resource != null) { 1131 name = resource.getSecond(); 1132 } else { 1133 name = String.format("Tab %d", i+1); // default name if id is unresolved. 1134 } 1135 tabHost.addTab(tabHost.newTabSpec(tabSpec).setIndicator(name).setContent(id)); 1136 } 1137 } 1138 } 1139 1140 /** 1141 * Visits a {@link View} and its children and generate a {@link ViewInfo} containing the 1142 * bounds of all the views. 1143 * 1144 * @param view the root View 1145 * @param offset an offset for the view bounds. 1146 * @param setExtendedInfo whether to set the extended view info in the {@link ViewInfo} object. 1147 * @param isContentFrame {@code true} if the {@code ViewInfo} to be created is part of the 1148 * content frame. 1149 * 1150 * @return {@code ViewInfo} containing the bounds of the view and it children otherwise. 1151 */ 1152 private ViewInfo visit(View view, int offset, boolean setExtendedInfo, 1153 boolean isContentFrame) { 1154 ViewInfo result = createViewInfo(view, offset, setExtendedInfo, isContentFrame); 1155 1156 if (view instanceof ViewGroup) { 1157 ViewGroup group = ((ViewGroup) view); 1158 result.setChildren(visitAllChildren(group, isContentFrame ? 0 : offset, 1159 setExtendedInfo, isContentFrame)); 1160 } 1161 return result; 1162 } 1163 1164 /** 1165 * Visits all the children of a given ViewGroup and generates a list of {@link ViewInfo} 1166 * containing the bounds of all the views. It also initializes the {@link #mViewInfoList} with 1167 * the children of the {@code mContentRoot}. 1168 * 1169 * @param viewGroup the root View 1170 * @param offset an offset from the top for the content view frame. 1171 * @param setExtendedInfo whether to set the extended view info in the {@link ViewInfo} object. 1172 * @param isContentFrame {@code true} if the {@code ViewInfo} to be created is part of the 1173 * content frame. {@code false} if the {@code ViewInfo} to be created is 1174 * part of the system decor. 1175 */ 1176 private List<ViewInfo> visitAllChildren(ViewGroup viewGroup, int offset, 1177 boolean setExtendedInfo, boolean isContentFrame) { 1178 if (viewGroup == null) { 1179 return null; 1180 } 1181 1182 if (!isContentFrame) { 1183 offset += viewGroup.getTop(); 1184 } 1185 1186 int childCount = viewGroup.getChildCount(); 1187 if (viewGroup == mContentRoot) { 1188 List<ViewInfo> childrenWithoutOffset = new ArrayList<ViewInfo>(childCount); 1189 List<ViewInfo> childrenWithOffset = new ArrayList<ViewInfo>(childCount); 1190 for (int i = 0; i < childCount; i++) { 1191 ViewInfo[] childViewInfo = visitContentRoot(viewGroup.getChildAt(i), offset, 1192 setExtendedInfo); 1193 childrenWithoutOffset.add(childViewInfo[0]); 1194 childrenWithOffset.add(childViewInfo[1]); 1195 } 1196 mViewInfoList = childrenWithOffset; 1197 return childrenWithoutOffset; 1198 } else { 1199 List<ViewInfo> children = new ArrayList<ViewInfo>(childCount); 1200 for (int i = 0; i < childCount; i++) { 1201 children.add(visit(viewGroup.getChildAt(i), offset, setExtendedInfo, 1202 isContentFrame)); 1203 } 1204 return children; 1205 } 1206 } 1207 1208 /** 1209 * Visits the children of {@link #mContentRoot} and generates {@link ViewInfo} containing the 1210 * bounds of all the views. It returns two {@code ViewInfo} objects with the same children, 1211 * one with the {@code offset} and other without the {@code offset}. The offset is needed to 1212 * get the right bounds if the {@code ViewInfo} hierarchy is accessed from 1213 * {@code mViewInfoList}. When the hierarchy is accessed via {@code mSystemViewInfoList}, the 1214 * offset is not needed. 1215 * 1216 * @return an array of length two, with ViewInfo at index 0 is without offset and ViewInfo at 1217 * index 1 is with the offset. 1218 */ 1219 @NonNull 1220 private ViewInfo[] visitContentRoot(View view, int offset, boolean setExtendedInfo) { 1221 ViewInfo[] result = new ViewInfo[2]; 1222 if (view == null) { 1223 return result; 1224 } 1225 1226 result[0] = createViewInfo(view, 0, setExtendedInfo, true); 1227 result[1] = createViewInfo(view, offset, setExtendedInfo, true); 1228 if (view instanceof ViewGroup) { 1229 List<ViewInfo> children = visitAllChildren((ViewGroup) view, 0, setExtendedInfo, true); 1230 result[0].setChildren(children); 1231 result[1].setChildren(children); 1232 } 1233 return result; 1234 } 1235 1236 /** 1237 * Creates a {@link ViewInfo} for the view. The {@code ViewInfo} corresponding to the children 1238 * of the {@code view} are not created. Consequently, the children of {@code ViewInfo} is not 1239 * set. 1240 * @param offset an offset for the view bounds. Used only if view is part of the content frame. 1241 */ 1242 private ViewInfo createViewInfo(View view, int offset, boolean setExtendedInfo, 1243 boolean isContentFrame) { 1244 if (view == null) { 1245 return null; 1246 } 1247 1248 ViewInfo result; 1249 if (isContentFrame) { 1250 // The view is part of the layout added by the user. Hence, 1251 // the ViewCookie may be obtained only through the Context. 1252 result = new ViewInfo(view.getClass().getName(), 1253 getContext().getViewKey(view), 1254 view.getLeft(), view.getTop() + offset, view.getRight(), 1255 view.getBottom() + offset, view, view.getLayoutParams()); 1256 } else { 1257 // We are part of the system decor. 1258 SystemViewInfo r = new SystemViewInfo(view.getClass().getName(), 1259 getViewKey(view), 1260 view.getLeft(), view.getTop(), view.getRight(), 1261 view.getBottom(), view, view.getLayoutParams()); 1262 result = r; 1263 // We currently mark three kinds of views: 1264 // 1. Menus in the Action Bar 1265 // 2. Menus in the Overflow popup. 1266 // 3. The overflow popup button. 1267 if (view instanceof ListMenuItemView) { 1268 // Mark 2. 1269 // All menus in the popup are of type ListMenuItemView. 1270 r.setViewType(ViewType.ACTION_BAR_OVERFLOW_MENU); 1271 } else { 1272 // Mark 3. 1273 ViewGroup.LayoutParams lp = view.getLayoutParams(); 1274 if (lp instanceof ActionMenuView.LayoutParams && 1275 ((ActionMenuView.LayoutParams) lp).isOverflowButton) { 1276 r.setViewType(ViewType.ACTION_BAR_OVERFLOW); 1277 } else { 1278 // Mark 1. 1279 // A view is a menu in the Action Bar is it is not the overflow button and of 1280 // its parent is of type ActionMenuView. We can also check if the view is 1281 // instanceof ActionMenuItemView but that will fail for menus using 1282 // actionProviderClass. 1283 ViewParent parent = view.getParent(); 1284 while (parent != mViewRoot && parent instanceof ViewGroup) { 1285 if (parent instanceof ActionMenuView) { 1286 r.setViewType(ViewType.ACTION_BAR_MENU); 1287 break; 1288 } 1289 parent = parent.getParent(); 1290 } 1291 } 1292 } 1293 } 1294 1295 if (setExtendedInfo) { 1296 MarginLayoutParams marginParams = null; 1297 LayoutParams params = view.getLayoutParams(); 1298 if (params instanceof MarginLayoutParams) { 1299 marginParams = (MarginLayoutParams) params; 1300 } 1301 result.setExtendedInfo(view.getBaseline(), 1302 marginParams != null ? marginParams.leftMargin : 0, 1303 marginParams != null ? marginParams.topMargin : 0, 1304 marginParams != null ? marginParams.rightMargin : 0, 1305 marginParams != null ? marginParams.bottomMargin : 0); 1306 } 1307 1308 return result; 1309 } 1310 1311 /* (non-Javadoc) 1312 * The cookie for menu items are stored in menu item and not in the map from View stored in 1313 * BridgeContext. 1314 */ 1315 @Nullable 1316 private Object getViewKey(View view) { 1317 BridgeContext context = getContext(); 1318 if (!(view instanceof MenuView.ItemView)) { 1319 return context.getViewKey(view); 1320 } 1321 MenuItemImpl menuItem; 1322 if (view instanceof ActionMenuItemView) { 1323 menuItem = ((ActionMenuItemView) view).getItemData(); 1324 } else if (view instanceof ListMenuItemView) { 1325 menuItem = ((ListMenuItemView) view).getItemData(); 1326 } else if (view instanceof IconMenuItemView) { 1327 menuItem = ((IconMenuItemView) view).getItemData(); 1328 } else { 1329 menuItem = null; 1330 } 1331 if (menuItem instanceof BridgeMenuItemImpl) { 1332 return ((BridgeMenuItemImpl) menuItem).getViewCookie(); 1333 } 1334 1335 return null; 1336 } 1337 1338 public void invalidateRenderingSize() { 1339 mMeasuredScreenWidth = mMeasuredScreenHeight = -1; 1340 } 1341 1342 public BufferedImage getImage() { 1343 return mImage; 1344 } 1345 1346 public boolean isAlphaChannelImage() { 1347 return mIsAlphaChannelImage; 1348 } 1349 1350 public List<ViewInfo> getViewInfos() { 1351 return mViewInfoList; 1352 } 1353 1354 public List<ViewInfo> getSystemViewInfos() { 1355 return mSystemViewInfoList; 1356 } 1357 1358 public Map<String, String> getDefaultProperties(Object viewObject) { 1359 return getContext().getDefaultPropMap(viewObject); 1360 } 1361 1362 public void setScene(RenderSession session) { 1363 mScene = session; 1364 } 1365 1366 public RenderSession getSession() { 1367 return mScene; 1368 } 1369} 1370