Source/WebCore/platform/graphics/android/GraphicsLayerAndroid.cpp

   1 /*
   2  * Copyright (C) 2009 The Android Open Source Project
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *      http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 #include "config.h"
  18 #include "GraphicsLayerAndroid.h"
  19
  20 #if USE(ACCELERATED_COMPOSITING)
  21
  22 #include "AndroidAnimation.h"
  23 #include "Animation.h"
  24 #include "FloatRect.h"
  25 #include "GraphicsContext.h"
  26 #include "Image.h"
  27 #include "Layer.h"
  28 #include "Length.h"
  29 #include "MediaLayer.h"
  30 #include "PlatformBridge.h"
  31 #include "PlatformGraphicsContext.h"
  32 #include "RenderLayerBacking.h"
  33 #include "RenderView.h"
  34 #include "RotateTransformOperation.h"
  35 #include "ScaleTransformOperation.h"
  36 #include "ScrollableLayerAndroid.h"
  37 #include "SkCanvas.h"
  38 #include "SkRegion.h"
  39 #include "TransformationMatrix.h"
  40 #include "TranslateTransformOperation.h"
  41
  42 #include <cutils/log.h>
  43 #include <wtf/CurrentTime.h>
  44 #include <wtf/text/CString.h>
  45
  46 #undef LOG
  47 #define LOG(...) android_printLog(ANDROID_LOG_DEBUG, "GraphicsLayer", __VA_ARGS__)
  48 #define MLOG(...) android_printLog(ANDROID_LOG_DEBUG, "GraphicsLayer", __VA_ARGS__)
  49 #define TLOG(...) android_printLog(ANDROID_LOG_DEBUG, "GraphicsLayer", __VA_ARGS__)
  50
  51 #undef LOG
  52 #define LOG(...)
  53 #undef MLOG
  54 #define MLOG(...)
  55 #undef TLOG
  56 #define TLOG(...)
  57 #undef LAYER_DEBUG
  58
  59 using namespace std;
  60
  61 static bool gPaused;
  62 static double gPausedDelay;
  63
  64 namespace WebCore {
  65
  66 static int gDebugGraphicsLayerAndroidInstances = 0;
  67 inline int GraphicsLayerAndroid::instancesCount()
  68 {
  69     return gDebugGraphicsLayerAndroidInstances;
  70 }
  71
  72 static String propertyIdToString(AnimatedPropertyID property)
  73 {
  74     switch (property) {
  75     case AnimatedPropertyWebkitTransform:
  76         return "transform";
  77     case AnimatedPropertyOpacity:
  78         return "opacity";
  79     case AnimatedPropertyBackgroundColor:
  80         return "backgroundColor";
  81     case AnimatedPropertyInvalid:
  82         ASSERT_NOT_REACHED();
  83     }
  84     ASSERT_NOT_REACHED();
  85     return "";
  86 }
  87
  88 PassOwnPtr<GraphicsLayer> GraphicsLayer::create(GraphicsLayerClient* client)
  89 {
  90     return new GraphicsLayerAndroid(client);
  91 }
  92
  93 SkLength convertLength(Length len)
  94 {
  95     SkLength length;
  96     length.type = SkLength::Undefined;
  97     length.value = 0;
  98     if (len.type() == WebCore::Percent) {
  99         length.type = SkLength::Percent;
 100         length.value = len.percent();
 101     }
 102     if (len.type() == WebCore::Fixed) {
 103         length.type = SkLength::Fixed;
 104         length.value = len.value();
 105     }
 106     return length;
 107 }
 108
 109 static RenderLayer* renderLayerFromClient(GraphicsLayerClient* client)
 110 {
 111     return client ? client->owningLayer() : 0;
 112 }
 113
 114 GraphicsLayerAndroid::GraphicsLayerAndroid(GraphicsLayerClient* client) :
 115     GraphicsLayer(client),
 116     m_needsSyncChildren(false),
 117     m_needsSyncMask(false),
 118     m_needsRepaint(false),
 119     m_needsNotifyClient(false),
 120     m_haveContents(false),
 121     m_haveImage(false),
 122     m_newImage(false),
 123     m_imageRef(0),
 124     m_foregroundLayer(0),
 125     m_foregroundClipLayer(0)
 126 {
 127     RenderLayer* renderLayer = renderLayerFromClient(m_client);
 128     m_contentLayer = new LayerAndroid(renderLayer);
 129     m_dirtyRegion.setEmpty();
 130     gDebugGraphicsLayerAndroidInstances++;
 131 }
 132
 133 GraphicsLayerAndroid::~GraphicsLayerAndroid()
 134 {
 135     m_contentLayer->unref();
 136     SkSafeUnref(m_foregroundLayer);
 137     SkSafeUnref(m_foregroundClipLayer);
 138     gDebugGraphicsLayerAndroidInstances--;
 139 }
 140
 141 void GraphicsLayerAndroid::setName(const String& name)
 142 {
 143     GraphicsLayer::setName(name);
 144 }
 145
 146 NativeLayer GraphicsLayerAndroid::nativeLayer() const
 147 {
 148     LOG("(%x) nativeLayer", this);
 149     return 0;
 150 }
 151
 152 bool GraphicsLayerAndroid::setChildren(const Vector<GraphicsLayer*>& children)
 153 {
 154     bool childrenChanged = GraphicsLayer::setChildren(children);
 155     if (childrenChanged) {
 156         m_needsSyncChildren = true;
 157         askForSync();
 158     }
 159
 160     return childrenChanged;
 161 }
 162
 163 void GraphicsLayerAndroid::addChild(GraphicsLayer* childLayer)
 164 {
 165 #ifndef NDEBUG
 166     const String& name = childLayer->name();
 167     LOG("(%x) addChild: %x (%s)", this, childLayer, name.latin1().data());
 168 #endif
 169     GraphicsLayer::addChild(childLayer);
 170     m_needsSyncChildren = true;
 171     askForSync();
 172 }
 173
 174 void GraphicsLayerAndroid::addChildAtIndex(GraphicsLayer* childLayer, int index)
 175 {
 176     LOG("(%x) addChild %x AtIndex %d", this, childLayer, index);
 177     GraphicsLayer::addChildAtIndex(childLayer, index);
 178     m_needsSyncChildren = true;
 179     askForSync();
 180 }
 181
 182 void GraphicsLayerAndroid::addChildBelow(GraphicsLayer* childLayer, GraphicsLayer* sibling)
 183 {
 184     LOG("(%x) addChild %x Below %x", this, childLayer, sibling);
 185     GraphicsLayer::addChildBelow(childLayer, sibling);
 186     m_needsSyncChildren = true;
 187     askForSync();
 188 }
 189
 190 void GraphicsLayerAndroid::addChildAbove(GraphicsLayer* childLayer, GraphicsLayer* sibling)
 191 {
 192     LOG("(%x) addChild %x Above %x", this, childLayer, sibling);
 193     GraphicsLayer::addChildAbove(childLayer, sibling);
 194     m_needsSyncChildren = true;
 195     askForSync();
 196 }
 197
 198 bool GraphicsLayerAndroid::replaceChild(GraphicsLayer* oldChild, GraphicsLayer* newChild)
 199 {
 200     LOG("(%x) replaceChild %x by %x", this, oldChild, newChild);
 201     bool ret = GraphicsLayer::replaceChild(oldChild, newChild);
 202     if (ret) {
 203         m_needsSyncChildren = true;
 204         askForSync();
 205     }
 206     return ret;
 207 }
 208
 209 void GraphicsLayerAndroid::removeFromParent()
 210 {
 211     LOG("(%x) removeFromParent()", this);
 212     GraphicsLayerAndroid* parent = static_cast<GraphicsLayerAndroid*>(m_parent);
 213     GraphicsLayer::removeFromParent();
 214     // Update the parent's children.
 215     if (parent) {
 216         parent->m_needsSyncChildren = true;
 217         askForSync();
 218     }
 219 }
 220
 221 void GraphicsLayerAndroid::updateFixedPosition()
 222 {
 223     RenderLayer* renderLayer = renderLayerFromClient(m_client);
 224     if (!renderLayer)
 225         return;
 226     RenderView* view = static_cast<RenderView*>(renderLayer->renderer());
 227
 228     if (!view)
 229         return;
 230
 231     // We will need the Iframe flag in the LayerAndroid tree for fixed position
 232     if (view->isRenderIFrame())
 233         m_contentLayer->setIsIframe(true);
 234     // If we are a fixed position layer, just set it
 235     if (view->isPositioned() && view->style()->position() == FixedPosition) {
 236         // We need to get the passed CSS properties for the element
 237         SkLength left, top, right, bottom;
 238         left = convertLength(view->style()->left());
 239         top = convertLength(view->style()->top());
 240         right = convertLength(view->style()->right());
 241         bottom = convertLength(view->style()->bottom());
 242
 243         // We also need to get the margin...
 244         SkLength marginLeft, marginTop, marginRight, marginBottom;
 245         marginLeft = convertLength(view->style()->marginLeft());
 246         marginTop = convertLength(view->style()->marginTop());
 247         marginRight = convertLength(view->style()->marginRight());
 248         marginBottom = convertLength(view->style()->marginBottom());
 249
 250         // In order to compute the fixed element's position, we need the width
 251         // and height of the element when bottom or right is defined.
 252         // And here we should use the non-overflowed value, that means, the
 253         // overflowed content (e.g. outset shadow) will not be counted into the
 254         // width and height.
 255         int w = view->width();
 256         int h = view->height();
 257
 258         int paintingOffsetX = - offsetFromRenderer().width();
 259         int paintingOffsetY = - offsetFromRenderer().height();
 260
 261         SkRect viewRect;
 262         viewRect.set(paintingOffsetX, paintingOffsetY, paintingOffsetX + w, paintingOffsetY + h);
 263         IntPoint renderLayerPos(renderLayer->x(), renderLayer->y());
 264         m_contentLayer->setFixedPosition(left, top, right, bottom,
 265                                          marginLeft, marginTop,
 266                                          marginRight, marginBottom,
 267                                          renderLayerPos,
 268                                          viewRect);
 269     }
 270 }
 271
 272 void GraphicsLayerAndroid::setPosition(const FloatPoint& point)
 273 {
 274     if (point == m_position)
 275         return;
 276
 277     GraphicsLayer::setPosition(point);
 278
 279 #ifdef LAYER_DEBUG_2
 280     LOG("(%x) setPosition(%.2f,%.2f) pos(%.2f, %.2f) anchor(%.2f,%.2f) size(%.2f, %.2f)",
 281         this, point.x(), point.y(), m_position.x(), m_position.y(),
 282         m_anchorPoint.x(), m_anchorPoint.y(), m_size.width(), m_size.height());
 283 #endif
 284     m_contentLayer->setPosition(point.x(), point.y());
 285     askForSync();
 286 }
 287
 288 void GraphicsLayerAndroid::setPreserves3D(bool preserves3D)
 289 {
 290     if (preserves3D == m_preserves3D)
 291         return;
 292
 293     GraphicsLayer::setPreserves3D(preserves3D);
 294     m_contentLayer->setPreserves3D(preserves3D);
 295     askForSync();
 296 }
 297
 298 void GraphicsLayerAndroid::setAnchorPoint(const FloatPoint3D& point)
 299 {
 300     if (point == m_anchorPoint)
 301         return;
 302     GraphicsLayer::setAnchorPoint(point);
 303     m_contentLayer->setAnchorPoint(point.x(), point.y());
 304     m_contentLayer->setAnchorPointZ(point.z());
 305     askForSync();
 306 }
 307
 308 void GraphicsLayerAndroid::setSize(const FloatSize& size)
 309 {
 310     if (size == m_size)
 311         return;
 312     MLOG("(%x) setSize (%.2f,%.2f)", this, size.width(), size.height());
 313     GraphicsLayer::setSize(size);
 314
 315     // If it is a media layer the size may have changed as a result of the media
 316     // element (e.g. plugin) gaining focus. Therefore, we must sync the size of
 317     // the focus' outline so that our UI thread can draw accordingly.
 318     RenderLayer* layer = renderLayerFromClient(m_client);
 319     if (layer && m_contentLayer->isMedia()) {
 320         RenderBox* box = layer->renderBox();
 321         int outline = box->view()->maximalOutlineSize();
 322         static_cast<MediaLayer*>(m_contentLayer)->setOutlineSize(outline);
 323         LOG("Media Outline: %d %p %p %p", outline, m_client, layer, box);
 324         LOG("Media Size: %g,%g", size.width(), size.height());
 325     }
 326
 327     m_contentLayer->setSize(size.width(), size.height());
 328     askForSync();
 329 }
 330
 331 void GraphicsLayerAndroid::setBackfaceVisibility(bool b)
 332 {
 333     GraphicsLayer::setBackfaceVisibility(b);
 334     m_contentLayer->setBackfaceVisibility(b);
 335     askForSync();
 336 }
 337
 338 void GraphicsLayerAndroid::setTransform(const TransformationMatrix& t)
 339 {
 340     if (t == m_transform)
 341         return;
 342
 343     GraphicsLayer::setTransform(t);
 344     m_contentLayer->setTransform(t);
 345     askForSync();
 346 }
 347
 348 void GraphicsLayerAndroid::setChildrenTransform(const TransformationMatrix& t)
 349 {
 350     if (t == m_childrenTransform)
 351        return;
 352     LOG("(%x) setChildrenTransform", this);
 353
 354     GraphicsLayer::setChildrenTransform(t);
 355     m_contentLayer->setChildrenTransform(t);
 356     for (unsigned int i = 0; i < m_children.size(); i++) {
 357         GraphicsLayer* layer = m_children[i];
 358         layer->setTransform(t);
 359         if (layer->children().size())
 360             layer->setChildrenTransform(t);
 361     }
 362     askForSync();
 363 }
 364
 365 void GraphicsLayerAndroid::setMaskLayer(GraphicsLayer* layer)
 366 {
 367     if (layer == m_maskLayer)
 368         return;
 369
 370     GraphicsLayer::setMaskLayer(layer);
 371     m_needsSyncMask = true;
 372     askForSync();
 373 }
 374
 375 void GraphicsLayerAndroid::setMasksToBounds(bool masksToBounds)
 376 {
 377     if (masksToBounds == m_masksToBounds)
 378         return;
 379     GraphicsLayer::setMasksToBounds(masksToBounds);
 380     m_needsSyncMask = true;
 381     askForSync();
 382 }
 383
 384 void GraphicsLayerAndroid::setDrawsContent(bool drawsContent)
 385 {
 386     if (drawsContent == m_drawsContent)
 387         return;
 388     GraphicsLayer::setDrawsContent(drawsContent);
 389     if (m_drawsContent) {
 390         m_haveContents = true;
 391         setNeedsDisplay();
 392     }
 393     askForSync();
 394 }
 395
 396 void GraphicsLayerAndroid::setBackgroundColor(const Color& color)
 397 {
 398     if (color == m_backgroundColor)
 399         return;
 400     LOG("(%x) setBackgroundColor", this);
 401     GraphicsLayer::setBackgroundColor(color);
 402     SkColor c = SkColorSetARGB(color.alpha(), color.red(), color.green(), color.blue());
 403     m_contentLayer->setBackgroundColor(c);
 404     m_haveContents = true;
 405     askForSync();
 406 }
 407
 408 void GraphicsLayerAndroid::clearBackgroundColor()
 409 {
 410     LOG("(%x) clearBackgroundColor", this);
 411     GraphicsLayer::clearBackgroundColor();
 412     askForSync();
 413 }
 414
 415 void GraphicsLayerAndroid::setContentsOpaque(bool opaque)
 416 {
 417     if (opaque == m_contentsOpaque)
 418         return;
 419     LOG("(%x) setContentsOpaque (%d)", this, opaque);
 420     GraphicsLayer::setContentsOpaque(opaque);
 421     m_haveContents = true;
 422     askForSync();
 423 }
 424
 425 void GraphicsLayerAndroid::setOpacity(float opacity)
 426 {
 427     LOG("(%x) setOpacity: %.2f", this, opacity);
 428     float clampedOpacity = max(0.0f, min(opacity, 1.0f));
 429
 430     if (clampedOpacity == m_opacity)
 431         return;
 432
 433     MLOG("(%x) setFinalOpacity: %.2f=>%.2f (%.2f)", this,
 434         opacity, clampedOpacity, m_opacity);
 435     GraphicsLayer::setOpacity(clampedOpacity);
 436     m_contentLayer->setOpacity(clampedOpacity);
 437     askForSync();
 438 }
 439
 440 void GraphicsLayerAndroid::setNeedsDisplay()
 441 {
 442     LOG("(%x) setNeedsDisplay()", this);
 443     FloatRect rect(0, 0, m_size.width(), m_size.height());
 444     setNeedsDisplayInRect(rect);
 445 }
 446
 447 // Helper to set and clear the painting phase as well as auto restore the
 448 // original phase.
 449 class PaintingPhase {
 450 public:
 451     PaintingPhase(GraphicsLayer* layer)
 452         : m_layer(layer)
 453         , m_originalPhase(layer->paintingPhase()) {}
 454
 455     ~PaintingPhase()
 456     {
 457         m_layer->setPaintingPhase(m_originalPhase);
 458     }
 459
 460     void set(GraphicsLayerPaintingPhase phase)
 461     {
 462         m_layer->setPaintingPhase(phase);
 463     }
 464
 465     void clear(GraphicsLayerPaintingPhase phase)
 466     {
 467         m_layer->setPaintingPhase(
 468                 (GraphicsLayerPaintingPhase) (m_originalPhase & ~phase));
 469     }
 470 private:
 471     GraphicsLayer* m_layer;
 472     GraphicsLayerPaintingPhase m_originalPhase;
 473 };
 474
 475 void GraphicsLayerAndroid::updateScrollingLayers()
 476 {
 477 #if ENABLE(ANDROID_OVERFLOW_SCROLL)
 478     RenderLayer* layer = renderLayerFromClient(m_client);
 479     if (!layer || !m_haveContents)
 480         return;
 481     bool hasOverflowScroll = m_foregroundLayer || m_contentLayer->contentIsScrollable();
 482     bool layerNeedsOverflow = layer->hasOverflowScroll();
 483     bool iframeNeedsOverflow = layer->isRootLayer() &&
 484         layer->renderer()->frame()->ownerRenderer() &&
 485         layer->renderer()->frame()->view()->hasOverflowScroll();
 486
 487     if (hasOverflowScroll && (layerNeedsOverflow || iframeNeedsOverflow)) {
 488         // Already has overflow layers.
 489         return;
 490     }
 491     if (!hasOverflowScroll && !layerNeedsOverflow && !iframeNeedsOverflow) {
 492         // Does not need overflow layers.
 493         return;
 494     }
 495     if (layerNeedsOverflow || iframeNeedsOverflow) {
 496         ASSERT(!hasOverflowScroll);
 497         if (layerNeedsOverflow) {
 498             ASSERT(!m_foregroundLayer && !m_foregroundClipLayer);
 499             m_foregroundLayer = new ScrollableLayerAndroid(layer);
 500             m_foregroundClipLayer = new LayerAndroid(layer);
 501             m_foregroundClipLayer->setMasksToBounds(true);
 502             m_foregroundClipLayer->addChild(m_foregroundLayer);
 503             m_contentLayer->addChild(m_foregroundClipLayer);
 504             m_contentLayer->setHasOverflowChildren(true);
 505         } else {
 506             ASSERT(iframeNeedsOverflow && !m_contentLayer->contentIsScrollable());
 507             // No need to copy the children as they will be removed and synced.
 508             m_contentLayer->removeChildren();
 509             // Replace the content layer with a scrollable layer.
 510             LayerAndroid* layer = new ScrollableLayerAndroid(*m_contentLayer);
 511             m_contentLayer->unref();
 512             m_contentLayer = layer;
 513             if (m_parent) {
 514                 // The content layer has changed so the parent needs to sync
 515                 // children.
 516                 static_cast<GraphicsLayerAndroid*>(m_parent)->m_needsSyncChildren = true;
 517             }
 518         }
 519         // Need to rebuild our children based on the new structure.
 520         m_needsSyncChildren = true;
 521     } else {
 522         ASSERT(hasOverflowScroll && !layerNeedsOverflow && !iframeNeedsOverflow);
 523         ASSERT(m_contentLayer);
 524         // Remove the foreground layers.
 525         if (m_foregroundLayer) {
 526             m_foregroundLayer->unref();
 527             m_foregroundLayer = 0;
 528             m_foregroundClipLayer->unref();
 529             m_foregroundClipLayer = 0;
 530         }
 531         // No need to copy over children.
 532         m_contentLayer->removeChildren();
 533         LayerAndroid* layer = new LayerAndroid(*m_contentLayer);
 534         m_contentLayer->unref();
 535         m_contentLayer = layer;
 536         if (m_parent) {
 537             // The content layer has changed so the parent needs to sync
 538             // children.
 539             static_cast<GraphicsLayerAndroid*>(m_parent)->m_needsSyncChildren = true;
 540         }
 541         // Children are all re-parented.
 542         m_needsSyncChildren = true;
 543     }
 544 #endif
 545 }
 546
 547 bool GraphicsLayerAndroid::repaint()
 548 {
 549     LOG("(%x) repaint(), gPaused(%d) m_needsRepaint(%d) m_haveContents(%d) ",
 550         this, gPaused, m_needsRepaint, m_haveContents);
 551
 552     if (!gPaused && m_haveContents && m_needsRepaint && !m_haveImage) {
 553         // with SkPicture, we request the entire layer's content.
 554         IntRect layerBounds(0, 0, m_size.width(), m_size.height());
 555
 556         RenderLayer* layer = renderLayerFromClient(m_client);
 557         if (!layer)
 558             return false;
 559         if (m_foregroundLayer) {
 560             PaintingPhase phase(this);
 561             // Paint the background into a separate context.
 562             phase.set(GraphicsLayerPaintBackground);
 563             if (!paintContext(m_contentLayer->recordContext(), layerBounds))
 564                 return false;
 565
 566             // Construct the foreground layer and draw.
 567             RenderBox* box = layer->renderBox();
 568             int outline = box->view()->maximalOutlineSize();
 569             IntRect contentsRect(0, 0,
 570                                  box->borderLeft() + box->borderRight() + layer->scrollWidth(),
 571                                  box->borderTop() + box->borderBottom() + layer->scrollHeight());
 572             contentsRect.inflate(outline);
 573             // Update the foreground layer size.
 574             m_foregroundLayer->setSize(contentsRect.width(), contentsRect.height());
 575             // Paint everything else into the main recording canvas.
 576             phase.clear(GraphicsLayerPaintBackground);
 577
 578             // Paint at 0,0.
 579             IntSize scroll = layer->scrolledContentOffset();
 580             layer->scrollToOffset(0, 0);
 581             // At this point, it doesn't matter if painting failed.
 582             (void) paintContext(m_foregroundLayer->recordContext(), contentsRect);
 583             layer->scrollToOffset(scroll.width(), scroll.height());
 584
 585             // Construct the clip layer for masking the contents.
 586             IntRect clip = layer->renderer()->absoluteBoundingBoxRect();
 587             // absoluteBoundingBoxRect does not include the outline so we need
 588             // to offset the position.
 589             int x = box->borderLeft() + outline;
 590             int y = box->borderTop() + outline;
 591             int width = clip.width() - box->borderLeft() - box->borderRight();
 592             int height = clip.height() - box->borderTop() - box->borderBottom();
 593             m_foregroundClipLayer->setPosition(x, y);
 594             m_foregroundClipLayer->setSize(width, height);
 595
 596             // Need to offset the foreground layer by the clip layer in order
 597             // for the contents to be in the correct position.
 598             m_foregroundLayer->setPosition(-x, -y);
 599             // Set the scrollable bounds of the layer.
 600             m_foregroundLayer->setScrollLimits(-x, -y, m_size.width(), m_size.height());
 601             m_foregroundLayer->needsRepaint();
 602         } else {
 603             // If there is no contents clip, we can draw everything into one
 604             // picture.
 605             if (!paintContext(m_contentLayer->recordContext(), layerBounds))
 606                 return false;
 607             // Check for a scrollable iframe and report the scrolling
 608             // limits based on the view size.
 609             if (m_contentLayer->contentIsScrollable()) {
 610                 FrameView* view = layer->renderer()->frame()->view();
 611                 static_cast<ScrollableLayerAndroid*>(m_contentLayer)->setScrollLimits(
 612                     m_position.x(), m_position.y(), view->layoutWidth(), view->layoutHeight());
 613             }
 614         }
 615
 616         LOG("(%x) repaint() on (%.2f,%.2f) contentlayer(%.2f,%.2f,%.2f,%.2f)paintGraphicsLayer called!",
 617             this, m_size.width(), m_size.height(),
 618             m_contentLayer->getPosition().fX,
 619             m_contentLayer->getPosition().fY,
 620             m_contentLayer->getSize().width(),
 621             m_contentLayer->getSize().height());
 622
 623         m_contentLayer->markAsDirty(m_dirtyRegion);
 624         m_dirtyRegion.setEmpty();
 625         m_contentLayer->needsRepaint();
 626         m_needsRepaint = false;
 627
 628         return true;
 629     }
 630     if (m_needsRepaint && m_haveImage && m_newImage) {
 631         // We need to tell the GL thread that we will need to repaint the
 632         // texture. Only do so if we effectively have a new image!
 633         m_contentLayer->markAsDirty(m_dirtyRegion);
 634         m_dirtyRegion.setEmpty();
 635         m_contentLayer->needsRepaint();
 636         m_newImage = false;
 637         m_needsRepaint = false;
 638         return true;
 639     }
 640     return false;
 641 }
 642
 643 bool GraphicsLayerAndroid::paintContext(SkPicture* context,
 644                                         const IntRect& rect)
 645 {
 646     SkAutoPictureRecord arp(context, rect.width(), rect.height());
 647     SkCanvas* canvas = arp.getRecordingCanvas();
 648
 649     if (!canvas)
 650         return false;
 651
 652     PlatformGraphicsContext platformContext(canvas, 0);
 653     GraphicsContext graphicsContext(&platformContext);
 654
 655     paintGraphicsLayerContents(graphicsContext, rect);
 656     return true;
 657 }
 658
 659 void GraphicsLayerAndroid::setNeedsDisplayInRect(const FloatRect& rect)
 660 {
 661     // rect is in the render object coordinates
 662
 663     if (!m_haveImage && !drawsContent()) {
 664         LOG("(%x) setNeedsDisplay(%.2f,%.2f,%.2f,%.2f) doesn't have content, bypass...",
 665             this, rect.x(), rect.y(), rect.width(), rect.height());
 666         return;
 667     }
 668
 669     SkRegion region;
 670     region.setRect(rect.x(), rect.y(),
 671                    rect.x() + rect.width(),
 672                    rect.y() + rect.height());
 673     m_dirtyRegion.op(region, SkRegion::kUnion_Op);
 674
 675     m_needsRepaint = true;
 676     askForSync();
 677 }
 678
 679 void GraphicsLayerAndroid::pauseDisplay(bool state)
 680 {
 681     gPaused = state;
 682     if (gPaused)
 683         gPausedDelay = WTF::currentTime() + 1;
 684 }
 685
 686 bool GraphicsLayerAndroid::addAnimation(const KeyframeValueList& valueList,
 687                                         const IntSize& boxSize,
 688                                         const Animation* anim,
 689                                         const String& keyframesName,
 690                                         double beginTime)
 691 {
 692     // For now, let webkit deals with the animations -- the current UI-side
 693     // animation code has some annoying bugs, and we improved communication
 694     // between webkit and UI enough that performance-wise it's not so much
 695     // a problem to let webkit do everything.
 696     // TODO: re-enable UI-side animations
 697     return false;
 698
 699     if (!anim || anim->isEmptyOrZeroDuration() || valueList.size() < 2)
 700         return false;
 701
 702     bool createdAnimations = false;
 703     if (valueList.property() == AnimatedPropertyWebkitTransform) {
 704         createdAnimations = createTransformAnimationsFromKeyframes(valueList,
 705                                                                    anim,
 706                                                                    keyframesName,
 707                                                                    beginTime,
 708                                                                    boxSize);
 709     } else {
 710         createdAnimations = createAnimationFromKeyframes(valueList,
 711                                                          anim,
 712                                                          keyframesName,
 713                                                          beginTime);
 714     }
 715     if (createdAnimations)
 716         askForSync();
 717     return createdAnimations;
 718 }
 719
 720 bool GraphicsLayerAndroid::createAnimationFromKeyframes(const KeyframeValueList& valueList,
 721      const Animation* animation, const String& keyframesName, double beginTime)
 722 {
 723     bool isKeyframe = valueList.size() > 2;
 724     TLOG("createAnimationFromKeyframes(%d), name(%s) beginTime(%.2f)",
 725         isKeyframe, keyframesName.latin1().data(), beginTime);
 726
 727     switch (valueList.property()) {
 728     case AnimatedPropertyInvalid: break;
 729     case AnimatedPropertyWebkitTransform: break;
 730     case AnimatedPropertyBackgroundColor: break;
 731     case AnimatedPropertyOpacity: {
 732         MLOG("ANIMATEDPROPERTYOPACITY");
 733
 734         KeyframeValueList* operationsList = new KeyframeValueList(AnimatedPropertyOpacity);
 735         for (unsigned int i = 0; i < valueList.size(); i++) {
 736             FloatAnimationValue* originalValue = (FloatAnimationValue*)valueList.at(i);
 737             PassRefPtr<TimingFunction> timingFunction(const_cast<TimingFunction*>(originalValue->timingFunction()));
 738             FloatAnimationValue* value = new FloatAnimationValue(originalValue->keyTime(),
 739                                                                  originalValue->value(),
 740                                                                  timingFunction);
 741             operationsList->insert(value);
 742         }
 743
 744         RefPtr<AndroidOpacityAnimation> anim = AndroidOpacityAnimation::create(animation,
 745                                                                                operationsList,
 746                                                                                beginTime);
 747         if (keyframesName.isEmpty())
 748             anim->setName(propertyIdToString(valueList.property()));
 749         else
 750             anim->setName(keyframesName);
 751
 752         m_contentLayer->addAnimation(anim.release());
 753         needsNotifyClient();
 754         return true;
 755     } break;
 756     }
 757     return false;
 758 }
 759
 760 void GraphicsLayerAndroid::needsNotifyClient()
 761 {
 762     m_needsNotifyClient = true;
 763     askForSync();
 764 }
 765
 766 bool GraphicsLayerAndroid::createTransformAnimationsFromKeyframes(const KeyframeValueList& valueList,
 767                                                                   const Animation* animation,
 768                                                                   const String& keyframesName,
 769                                                                   double beginTime,
 770                                                                   const IntSize& boxSize)
 771 {
 772     ASSERT(valueList.property() == AnimatedPropertyWebkitTransform);
 773     TLOG("createTransformAnimationFromKeyframes, name(%s) beginTime(%.2f)",
 774         keyframesName.latin1().data(), beginTime);
 775
 776     KeyframeValueList* operationsList = new KeyframeValueList(AnimatedPropertyWebkitTransform);
 777     for (unsigned int i = 0; i < valueList.size(); i++) {
 778         TransformAnimationValue* originalValue = (TransformAnimationValue*)valueList.at(i);
 779         PassRefPtr<TimingFunction> timingFunction(const_cast<TimingFunction*>(originalValue->timingFunction()));
 780         TransformAnimationValue* value = new TransformAnimationValue(originalValue->keyTime(),
 781                                                                      originalValue->value(),
 782                                                                      timingFunction);
 783         operationsList->insert(value);
 784     }
 785
 786     RefPtr<AndroidTransformAnimation> anim = AndroidTransformAnimation::create(animation,
 787                                                                                operationsList,
 788                                                                                beginTime);
 789
 790     if (keyframesName.isEmpty())
 791         anim->setName(propertyIdToString(valueList.property()));
 792     else
 793         anim->setName(keyframesName);
 794
 795
 796     m_contentLayer->addAnimation(anim.release());
 797
 798     needsNotifyClient();
 799     return true;
 800 }
 801
 802 void GraphicsLayerAndroid::removeAnimationsForProperty(AnimatedPropertyID anID)
 803 {
 804     TLOG("NRO removeAnimationsForProperty(%d)", anID);
 805     m_contentLayer->removeAnimationsForProperty(anID);
 806     askForSync();
 807 }
 808
 809 void GraphicsLayerAndroid::removeAnimationsForKeyframes(const String& keyframesName)
 810 {
 811     TLOG("NRO removeAnimationsForKeyframes(%s)", keyframesName.latin1().data());
 812     m_contentLayer->removeAnimationsForKeyframes(keyframesName);
 813     askForSync();
 814 }
 815
 816 void GraphicsLayerAndroid::pauseAnimation(const String& keyframesName)
 817 {
 818     TLOG("NRO pauseAnimation(%s)", keyframesName.latin1().data());
 819 }
 820
 821 void GraphicsLayerAndroid::suspendAnimations(double time)
 822 {
 823     TLOG("NRO suspendAnimations(%.2f)", time);
 824 }
 825
 826 void GraphicsLayerAndroid::resumeAnimations()
 827 {
 828     TLOG("NRO resumeAnimations()");
 829 }
 830
 831 void GraphicsLayerAndroid::setContentsToImage(Image* image)
 832 {
 833     TLOG("(%x) setContentsToImage", this, image);
 834     if (image) {
 835         m_haveContents = true;
 836         m_haveImage = true;
 837         // Only pass the new image if it's a different one
 838         if (image->nativeImageForCurrentFrame() != m_imageRef) {
 839             m_newImage = true;
 840             m_contentLayer->setContentsImage(image->nativeImageForCurrentFrame());
 841             // remember the passed image.
 842             m_imageRef = image->nativeImageForCurrentFrame();
 843             setNeedsDisplay();
 844             askForSync();
 845         }
 846     }
 847     if (m_haveImage && !image) {
 848         m_contentLayer->setContentsImage(0);
 849         m_imageRef = 0;
 850         setNeedsDisplay();
 851         askForSync();
 852     }
 853 }
 854
 855 void GraphicsLayerAndroid::setContentsToMedia(PlatformLayer* mediaLayer)
 856 {
 857     // Only fullscreen video on Android, so media doesn't get it's own layer.
 858     // We might still have other layers though.
 859     if (m_contentLayer != mediaLayer && mediaLayer) {
 860
 861         // TODO add a copy method to LayerAndroid to sync everything
 862         // copy data from the original content layer to the new one
 863         mediaLayer->setPosition(m_contentLayer->getPosition().fX,
 864                                 m_contentLayer->getPosition().fY);
 865         mediaLayer->setSize(m_contentLayer->getWidth(), m_contentLayer->getHeight());
 866         mediaLayer->setDrawTransform(*m_contentLayer->drawTransform());
 867
 868         mediaLayer->ref();
 869         m_contentLayer->unref();
 870         m_contentLayer = mediaLayer;
 871
 872         // If the parent exists then notify it to re-sync it's children
 873         if (m_parent) {
 874             GraphicsLayerAndroid* parent = static_cast<GraphicsLayerAndroid*>(m_parent);
 875             parent->m_needsSyncChildren = true;
 876         }
 877         m_needsSyncChildren = true;
 878
 879         setNeedsDisplay();
 880         askForSync();
 881     }
 882 }
 883
 884 PlatformLayer* GraphicsLayerAndroid::platformLayer() const
 885 {
 886     LOG("platformLayer");
 887     return m_contentLayer;
 888 }
 889
 890 #ifndef NDEBUG
 891 void GraphicsLayerAndroid::setDebugBackgroundColor(const Color& color)
 892 {
 893 }
 894
 895 void GraphicsLayerAndroid::setDebugBorder(const Color& color, float borderWidth)
 896 {
 897 }
 898 #endif
 899
 900 void GraphicsLayerAndroid::setZPosition(float position)
 901 {
 902     if (position == m_zPosition)
 903         return;
 904     LOG("(%x) setZPosition: %.2f", this, position);
 905     GraphicsLayer::setZPosition(position);
 906     askForSync();
 907 }
 908
 909 void GraphicsLayerAndroid::askForSync()
 910 {
 911     if (!m_client)
 912         return;
 913
 914     if (m_client)
 915         m_client->notifySyncRequired(this);
 916 }
 917
 918 void GraphicsLayerAndroid::syncChildren()
 919 {
 920     if (m_needsSyncChildren) {
 921         m_contentLayer->removeChildren();
 922         LayerAndroid* layer = m_contentLayer;
 923         if (m_foregroundClipLayer) {
 924             m_contentLayer->addChild(m_foregroundClipLayer);
 925             // Use the scrollable content layer as the parent of the children so
 926             // that they move with the content.
 927             layer = m_foregroundLayer;
 928             layer->removeChildren();
 929         }
 930         for (unsigned int i = 0; i < m_children.size(); i++)
 931             layer->addChild(m_children[i]->platformLayer());
 932         m_needsSyncChildren = false;
 933     }
 934 }
 935
 936 void GraphicsLayerAndroid::syncMask()
 937 {
 938     if (m_needsSyncMask) {
 939         if (m_maskLayer) {
 940             LayerAndroid* mask = m_maskLayer->platformLayer();
 941             m_contentLayer->setMaskLayer(mask);
 942         } else
 943             m_contentLayer->setMaskLayer(0);
 944
 945         m_contentLayer->setMasksToBounds(m_masksToBounds);
 946         m_needsSyncMask = false;
 947     }
 948 }
 949
 950 void GraphicsLayerAndroid::syncCompositingState()
 951 {
 952     for (unsigned int i = 0; i < m_children.size(); i++)
 953         m_children[i]->syncCompositingState();
 954
 955     updateScrollingLayers();
 956     updateFixedPosition();
 957     syncChildren();
 958     syncMask();
 959
 960     if (!gPaused || WTF::currentTime() >= gPausedDelay)
 961         repaint();
 962 }
 963
 964 void GraphicsLayerAndroid::notifyClientAnimationStarted()
 965 {
 966     for (unsigned int i = 0; i < m_children.size(); i++)
 967         static_cast<GraphicsLayerAndroid*>(m_children[i])->notifyClientAnimationStarted();
 968
 969     if (m_needsNotifyClient) {
 970         if (client())
 971             client()->notifyAnimationStarted(this, WTF::currentTime());
 972         m_needsNotifyClient = false;
 973     }
 974 }
 975
 976 } // namespace WebCore
 977
 978 #endif // USE(ACCELERATED_COMPOSITING)