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 "Length.h"
  28 #include "MediaLayer.h"
  29 #include "PlatformBridge.h"
  30 #include "PlatformGraphicsContext.h"
  31 #include "RenderLayerBacking.h"
  32 #include "RenderView.h"
  33 #include "RotateTransformOperation.h"
  34 #include "ScaleTransformOperation.h"
  35 #include "ScrollableLayerAndroid.h"
  36 #include "SkCanvas.h"
  37 #include "SkLayer.h"
  38 #include "TransformationMatrix.h"
  39 #include "TranslateTransformOperation.h"
  40
  41 #include <cutils/log.h>
  42 #include <wtf/CurrentTime.h>
  43 #include <wtf/text/CString.h>
  44
  45 #undef LOG
  46 #define LOG(...) android_printLog(ANDROID_LOG_DEBUG, "GraphicsLayer", __VA_ARGS__)
  47 #define MLOG(...) android_printLog(ANDROID_LOG_DEBUG, "GraphicsLayer", __VA_ARGS__)
  48 #define TLOG(...) android_printLog(ANDROID_LOG_DEBUG, "GraphicsLayer", __VA_ARGS__)
  49
  50 #undef LOG
  51 #define LOG(...)
  52 #undef MLOG
  53 #define MLOG(...)
  54 #undef TLOG
  55 #define TLOG(...)
  56 #undef LAYER_DEBUG
  57
  58 using namespace std;
  59
  60 static bool gPaused;
  61 static double gPausedDelay;
  62
  63 namespace WebCore {
  64
  65 static int gDebugGraphicsLayerAndroidInstances = 0;
  66 inline int GraphicsLayerAndroid::instancesCount()
  67 {
  68     return gDebugGraphicsLayerAndroidInstances;
  69 }
  70
  71 static String propertyIdToString(AnimatedPropertyID property)
  72 {
  73     switch (property) {
  74     case AnimatedPropertyWebkitTransform:
  75         return "transform";
  76     case AnimatedPropertyOpacity:
  77         return "opacity";
  78     case AnimatedPropertyBackgroundColor:
  79         return "backgroundColor";
  80     case AnimatedPropertyInvalid:
  81         ASSERT_NOT_REACHED();
  82     }
  83     ASSERT_NOT_REACHED();
  84     return "";
  85 }
  86
  87 PassOwnPtr<GraphicsLayer> GraphicsLayer::create(GraphicsLayerClient* client)
  88 {
  89     return new GraphicsLayerAndroid(client);
  90 }
  91
  92 SkLength convertLength(Length len)
  93 {
  94     SkLength length;
  95     length.type = SkLength::Undefined;
  96     length.value = 0;
  97     if (len.type() == WebCore::Percent) {
  98         length.type = SkLength::Percent;
  99         length.value = len.percent();
 100     }
 101     if (len.type() == WebCore::Fixed) {
 102         length.type = SkLength::Fixed;
 103         length.value = len.value();
 104     }
 105     return length;
 106 }
 107
 108 static RenderLayer* renderLayerFromClient(GraphicsLayerClient* client)
 109 {
 110     if (client)
 111         return static_cast<RenderLayerBacking*>(client)->owningLayer();
 112     return 0;
 113 }
 114
 115 GraphicsLayerAndroid::GraphicsLayerAndroid(GraphicsLayerClient* client) :
 116     GraphicsLayer(client),
 117     m_needsSyncChildren(false),
 118     m_needsSyncMask(false),
 119     m_needsRepaint(false),
 120     m_needsNotifyClient(false),
 121     m_haveContents(false),
 122     m_haveImage(false),
 123     m_newImage(false),
 124     m_imageRef(0),
 125     m_foregroundLayer(0),
 126     m_foregroundClipLayer(0)
 127 {
 128     RenderLayer* renderLayer = renderLayerFromClient(m_client);
 129     m_contentLayer = new LayerAndroid(renderLayer);
 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     if (!m_client)
 224         return;
 225
 226     RenderLayer* renderLayer = renderLayerFromClient(m_client);
 227     RenderView* view = static_cast<RenderView*>(renderLayer->renderer());
 228
 229     // We will need the Iframe flag in the LayerAndroid tree for fixed position
 230     if (view && view->isRenderIFrame())
 231         m_contentLayer->setIsIframe(true);
 232     // If we are a fixed position layer, just set it
 233     if (view->isPositioned() && view->style()->position() == FixedPosition) {
 234         // We need to get the passed CSS properties for the element
 235         SkLength left, top, right, bottom;
 236         left = convertLength(view->style()->left());
 237         top = convertLength(view->style()->top());
 238         right = convertLength(view->style()->right());
 239         bottom = convertLength(view->style()->bottom());
 240
 241         // We also need to get the margin...
 242         SkLength marginLeft, marginTop, marginRight, marginBottom;
 243         marginLeft = convertLength(view->style()->marginLeft());
 244         marginTop = convertLength(view->style()->marginTop());
 245         marginRight = convertLength(view->style()->marginRight());
 246         marginBottom = convertLength(view->style()->marginBottom());
 247
 248         // In order to compute the fixed element's position, we need the width
 249         // and height of the element when bottom or right is defined.
 250         // And here we should use the non-overflowed value, that means, the
 251         // overflowed content (e.g. outset shadow) will not be counted into the
 252         // width and height.
 253         int w = view->width();
 254         int h = view->height();
 255
 256         int paintingOffsetX = - offsetFromRenderer().width();
 257         int paintingOffsetY = - offsetFromRenderer().height();
 258
 259         SkRect viewRect;
 260         viewRect.set(paintingOffsetX, paintingOffsetY, paintingOffsetX + w, paintingOffsetY + h);
 261         IntPoint renderLayerPos(renderLayer->x(), renderLayer->y());
 262         m_contentLayer->setFixedPosition(left, top, right, bottom,
 263                                          marginLeft, marginTop,
 264                                          marginRight, marginBottom,
 265                                          renderLayerPos,
 266                                          viewRect);
 267     }
 268 }
 269
 270 void GraphicsLayerAndroid::setPosition(const FloatPoint& point)
 271 {
 272     if (point == m_position)
 273         return;
 274
 275     GraphicsLayer::setPosition(point);
 276
 277 #ifdef LAYER_DEBUG_2
 278     LOG("(%x) setPosition(%.2f,%.2f) pos(%.2f, %.2f) anchor(%.2f,%.2f) size(%.2f, %.2f)",
 279         this, point.x(), point.y(), m_position.x(), m_position.y(),
 280         m_anchorPoint.x(), m_anchorPoint.y(), m_size.width(), m_size.height());
 281 #endif
 282     m_contentLayer->setPosition(point.x(), point.y());
 283     askForSync();
 284 }
 285
 286 void GraphicsLayerAndroid::setPreserves3D(bool preserves3D)
 287 {
 288     if (preserves3D == m_preserves3D)
 289         return;
 290
 291     GraphicsLayer::setPreserves3D(preserves3D);
 292     m_contentLayer->setPreserves3D(preserves3D);
 293     askForSync();
 294 }
 295
 296 void GraphicsLayerAndroid::setAnchorPoint(const FloatPoint3D& point)
 297 {
 298     if (point == m_anchorPoint)
 299         return;
 300     GraphicsLayer::setAnchorPoint(point);
 301     m_contentLayer->setAnchorPoint(point.x(), point.y());
 302     m_contentLayer->setAnchorPointZ(point.z());
 303     askForSync();
 304 }
 305
 306 void GraphicsLayerAndroid::setSize(const FloatSize& size)
 307 {
 308     if (size == m_size)
 309         return;
 310     MLOG("(%x) setSize (%.2f,%.2f)", this, size.width(), size.height());
 311     GraphicsLayer::setSize(size);
 312
 313     // If it is a media layer the size may have changed as a result of the media
 314     // element (e.g. plugin) gaining focus. Therefore, we must sync the size of
 315     // the focus' outline so that our UI thread can draw accordingly.
 316     if (m_contentLayer->isMedia() && m_client) {
 317         RenderLayer* layer = renderLayerFromClient(m_client);
 318         RenderBox* box = layer->renderBox();
 319         int outline = box->view()->maximalOutlineSize();
 320         static_cast<MediaLayer*>(m_contentLayer)->setOutlineSize(outline);
 321         LOG("Media Outline: %d %p %p %p", outline, m_client, layer, box);
 322         LOG("Media Size: %g,%g", size.width(), size.height());
 323     }
 324
 325     m_contentLayer->setSize(size.width(), size.height());
 326     askForSync();
 327 }
 328
 329 void GraphicsLayerAndroid::setBackfaceVisibility(bool b)
 330 {
 331     GraphicsLayer::setBackfaceVisibility(b);
 332     m_contentLayer->setBackfaceVisibility(b);
 333     askForSync();
 334 }
 335
 336 void GraphicsLayerAndroid::setTransform(const TransformationMatrix& t)
 337 {
 338     if (t == m_transform)
 339         return;
 340
 341     GraphicsLayer::setTransform(t);
 342     m_contentLayer->setTransform(t);
 343     askForSync();
 344 }
 345
 346 void GraphicsLayerAndroid::setChildrenTransform(const TransformationMatrix& t)
 347 {
 348     if (t == m_childrenTransform)
 349        return;
 350     LOG("(%x) setChildrenTransform", this);
 351
 352     GraphicsLayer::setChildrenTransform(t);
 353     m_contentLayer->setChildrenTransform(t);
 354     for (unsigned int i = 0; i < m_children.size(); i++) {
 355         GraphicsLayer* layer = m_children[i];
 356         layer->setTransform(t);
 357         if (layer->children().size())
 358             layer->setChildrenTransform(t);
 359     }
 360     askForSync();
 361 }
 362
 363 void GraphicsLayerAndroid::setMaskLayer(GraphicsLayer* layer)
 364 {
 365     if (layer == m_maskLayer)
 366         return;
 367
 368     GraphicsLayer::setMaskLayer(layer);
 369     m_needsSyncMask = true;
 370     askForSync();
 371 }
 372
 373 void GraphicsLayerAndroid::setMasksToBounds(bool masksToBounds)
 374 {
 375     if (masksToBounds == m_masksToBounds)
 376         return;
 377     GraphicsLayer::setMasksToBounds(masksToBounds);
 378     m_needsSyncMask = true;
 379     askForSync();
 380 }
 381
 382 void GraphicsLayerAndroid::setDrawsContent(bool drawsContent)
 383 {
 384     if (drawsContent == m_drawsContent)
 385         return;
 386     GraphicsLayer::setDrawsContent(drawsContent);
 387     if (m_drawsContent) {
 388         m_haveContents = true;
 389         setNeedsDisplay();
 390     }
 391     askForSync();
 392 }
 393
 394 void GraphicsLayerAndroid::setBackgroundColor(const Color& color)
 395 {
 396     if (color == m_backgroundColor)
 397         return;
 398     LOG("(%x) setBackgroundColor", this);
 399     GraphicsLayer::setBackgroundColor(color);
 400     SkColor c = SkColorSetARGB(color.alpha(), color.red(), color.green(), color.blue());
 401     m_contentLayer->setBackgroundColor(c);
 402     m_haveContents = true;
 403     askForSync();
 404 }
 405
 406 void GraphicsLayerAndroid::clearBackgroundColor()
 407 {
 408     LOG("(%x) clearBackgroundColor", this);
 409     GraphicsLayer::clearBackgroundColor();
 410     askForSync();
 411 }
 412
 413 void GraphicsLayerAndroid::setContentsOpaque(bool opaque)
 414 {
 415     if (opaque == m_contentsOpaque)
 416         return;
 417     LOG("(%x) setContentsOpaque (%d)", this, opaque);
 418     GraphicsLayer::setContentsOpaque(opaque);
 419     m_haveContents = true;
 420     askForSync();
 421 }
 422
 423 void GraphicsLayerAndroid::setOpacity(float opacity)
 424 {
 425     LOG("(%x) setOpacity: %.2f", this, opacity);
 426     float clampedOpacity = max(0.0f, min(opacity, 1.0f));
 427
 428     if (clampedOpacity == m_opacity)
 429         return;
 430
 431     MLOG("(%x) setFinalOpacity: %.2f=>%.2f (%.2f)", this,
 432         opacity, clampedOpacity, m_opacity);
 433     GraphicsLayer::setOpacity(clampedOpacity);
 434     m_contentLayer->setOpacity(clampedOpacity);
 435     askForSync();
 436 }
 437
 438 void GraphicsLayerAndroid::setNeedsDisplay()
 439 {
 440     LOG("(%x) setNeedsDisplay()", this);
 441     FloatRect rect(0, 0, m_size.width(), m_size.height());
 442     setNeedsDisplayInRect(rect);
 443 }
 444
 445 // Helper to set and clear the painting phase as well as auto restore the
 446 // original phase.
 447 class PaintingPhase {
 448 public:
 449     PaintingPhase(GraphicsLayer* layer)
 450         : m_layer(layer)
 451         , m_originalPhase(layer->paintingPhase()) {}
 452
 453     ~PaintingPhase()
 454     {
 455         m_layer->setPaintingPhase(m_originalPhase);
 456     }
 457
 458     void set(GraphicsLayerPaintingPhase phase)
 459     {
 460         m_layer->setPaintingPhase(phase);
 461     }
 462
 463     void clear(GraphicsLayerPaintingPhase phase)
 464     {
 465         m_layer->setPaintingPhase(
 466                 (GraphicsLayerPaintingPhase) (m_originalPhase & ~phase));
 467     }
 468 private:
 469     GraphicsLayer* m_layer;
 470     GraphicsLayerPaintingPhase m_originalPhase;
 471 };
 472
 473 void GraphicsLayerAndroid::updateScrollingLayers()
 474 {
 475 #if ENABLE(ANDROID_OVERFLOW_SCROLL)
 476     RenderLayer* layer = renderLayerFromClient(m_client);
 477     if (!layer || !m_haveContents)
 478         return;
 479     bool hasOverflowScroll = m_foregroundLayer || m_contentLayer->contentIsScrollable();
 480     bool layerNeedsOverflow = layer->hasOverflowScroll();
 481     bool iframeNeedsOverflow = layer->isRootLayer() &&
 482         layer->renderer()->frame()->ownerRenderer() &&
 483         layer->renderer()->frame()->view()->hasOverflowScroll();
 484
 485     if (hasOverflowScroll && (layerNeedsOverflow || iframeNeedsOverflow)) {
 486         // Already has overflow layers.
 487         return;
 488     }
 489     if (!hasOverflowScroll && !layerNeedsOverflow && !iframeNeedsOverflow) {
 490         // Does not need overflow layers.
 491         return;
 492     }
 493     if (layerNeedsOverflow || iframeNeedsOverflow) {
 494         ASSERT(!hasOverflowScroll);
 495         if (layerNeedsOverflow) {
 496             ASSERT(!m_foregroundLayer && !m_foregroundClipLayer);
 497             m_foregroundLayer = new ScrollableLayerAndroid(layer);
 498             m_foregroundClipLayer = new LayerAndroid(layer);
 499             m_foregroundClipLayer->setMasksToBounds(true);
 500             m_foregroundClipLayer->addChild(m_foregroundLayer);
 501             m_contentLayer->addChild(m_foregroundClipLayer);
 502         } else {
 503             ASSERT(iframeNeedsOverflow && !m_contentLayer->contentIsScrollable());
 504             // No need to copy the children as they will be removed and synced.
 505             m_contentLayer->removeChildren();
 506             // Replace the content layer with a scrollable layer.
 507             LayerAndroid* layer = new ScrollableLayerAndroid(*m_contentLayer);
 508             m_contentLayer->unref();
 509             m_contentLayer = layer;
 510             if (m_parent) {
 511                 // The content layer has changed so the parent needs to sync
 512                 // children.
 513                 static_cast<GraphicsLayerAndroid*>(m_parent)->m_needsSyncChildren = true;
 514             }
 515         }
 516         // Need to rebuild our children based on the new structure.
 517         m_needsSyncChildren = true;
 518     } else {
 519         ASSERT(hasOverflowScroll && !layerNeedsOverflow && !iframeNeedsOverflow);
 520         ASSERT(m_contentLayer);
 521         // Remove the foreground layers.
 522         if (m_foregroundLayer) {
 523             m_foregroundLayer->unref();
 524             m_foregroundLayer = 0;
 525             m_foregroundClipLayer->unref();
 526             m_foregroundClipLayer = 0;
 527         }
 528         // No need to copy over children.
 529         m_contentLayer->removeChildren();
 530         LayerAndroid* layer = new LayerAndroid(*m_contentLayer);
 531         m_contentLayer->unref();
 532         m_contentLayer = layer;
 533         if (m_parent) {
 534             // The content layer has changed so the parent needs to sync
 535             // children.
 536             static_cast<GraphicsLayerAndroid*>(m_parent)->m_needsSyncChildren = true;
 537         }
 538         // Children are all re-parented.
 539         m_needsSyncChildren = true;
 540     }
 541 #endif
 542 }
 543
 544 bool GraphicsLayerAndroid::repaint()
 545 {
 546     LOG("(%x) repaint(), gPaused(%d) m_needsRepaint(%d) m_haveContents(%d) ",
 547         this, gPaused, m_needsRepaint, m_haveContents);
 548
 549     if (!gPaused && m_haveContents && m_needsRepaint && !m_haveImage) {
 550         // with SkPicture, we request the entire layer's content.
 551         IntRect layerBounds(0, 0, m_size.width(), m_size.height());
 552
 553         RenderLayer* layer = renderLayerFromClient(m_client);
 554         if (m_foregroundLayer) {
 555             PaintingPhase phase(this);
 556             // Paint the background into a separate context.
 557             phase.set(GraphicsLayerPaintBackground);
 558             if (!paintContext(m_contentLayer->recordContext(), layerBounds))
 559                 return false;
 560
 561             // Construct the foreground layer and draw.
 562             RenderBox* box = layer->renderBox();
 563             int outline = box->view()->maximalOutlineSize();
 564             IntRect contentsRect(0, 0,
 565                                  box->borderLeft() + box->borderRight() + layer->scrollWidth(),
 566                                  box->borderTop() + box->borderBottom() + layer->scrollHeight());
 567             contentsRect.inflate(outline);
 568             // Update the foreground layer size.
 569             m_foregroundLayer->setSize(contentsRect.width(), contentsRect.height());
 570             // Paint everything else into the main recording canvas.
 571             phase.clear(GraphicsLayerPaintBackground);
 572
 573             // Paint at 0,0.
 574             IntSize scroll = layer->scrolledContentOffset();
 575             layer->scrollToOffset(0, 0);
 576             // At this point, it doesn't matter if painting failed.
 577             (void) paintContext(m_foregroundLayer->recordContext(), contentsRect);
 578             layer->scrollToOffset(scroll.width(), scroll.height());
 579
 580             // Construct the clip layer for masking the contents.
 581             IntRect clip = layer->renderer()->absoluteBoundingBoxRect();
 582             // absoluteBoundingBoxRect does not include the outline so we need
 583             // to offset the position.
 584             int x = box->borderLeft() + outline;
 585             int y = box->borderTop() + outline;
 586             int width = clip.width() - box->borderLeft() - box->borderRight();
 587             int height = clip.height() - box->borderTop() - box->borderBottom();
 588             m_foregroundClipLayer->setPosition(x, y);
 589             m_foregroundClipLayer->setSize(width, height);
 590
 591             // Need to offset the foreground layer by the clip layer in order
 592             // for the contents to be in the correct position.
 593             m_foregroundLayer->setPosition(-x, -y);
 594             // Set the scrollable bounds of the layer.
 595             m_foregroundLayer->setScrollLimits(-x, -y, m_size.width(), m_size.height());
 596             m_foregroundLayer->needsRepaint();
 597         } else {
 598             // If there is no contents clip, we can draw everything into one
 599             // picture.
 600             if (!paintContext(m_contentLayer->recordContext(), layerBounds))
 601                 return false;
 602             // Check for a scrollable iframe and report the scrolling
 603             // limits based on the view size.
 604             if (m_contentLayer->contentIsScrollable()) {
 605                 FrameView* view = layer->renderer()->frame()->view();
 606                 static_cast<ScrollableLayerAndroid*>(m_contentLayer)->setScrollLimits(
 607                     m_position.x(), m_position.y(), view->layoutWidth(), view->layoutHeight());
 608             }
 609         }
 610
 611         LOG("(%x) repaint() on (%.2f,%.2f) contentlayer(%.2f,%.2f,%.2f,%.2f)paintGraphicsLayer called!",
 612             this, m_size.width(), m_size.height(),
 613             m_contentLayer->getPosition().fX,
 614             m_contentLayer->getPosition().fY,
 615             m_contentLayer->getSize().width(),
 616             m_contentLayer->getSize().height());
 617
 618         m_contentLayer->needsRepaint();
 619         m_needsRepaint = false;
 620         m_invalidatedRects.clear();
 621
 622         return true;
 623     }
 624     if (m_needsRepaint && m_haveImage && m_newImage) {
 625         // We need to tell the GL thread that we will need to repaint the
 626         // texture. Only do so if we effectively have a new image!
 627         m_contentLayer->needsRepaint();
 628         m_newImage = false;
 629         m_needsRepaint = false;
 630         return true;
 631     }
 632     return false;
 633 }
 634
 635 bool GraphicsLayerAndroid::paintContext(SkPicture* context,
 636                                         const IntRect& rect)
 637 {
 638     SkAutoPictureRecord arp(context, rect.width(), rect.height());
 639     SkCanvas* canvas = arp.getRecordingCanvas();
 640
 641     if (!canvas)
 642         return false;
 643
 644     PlatformGraphicsContext platformContext(canvas, 0);
 645     GraphicsContext graphicsContext(&platformContext);
 646
 647     paintGraphicsLayerContents(graphicsContext, rect);
 648     return true;
 649 }
 650
 651 void GraphicsLayerAndroid::setNeedsDisplayInRect(const FloatRect& rect)
 652 {
 653     for (unsigned int i = 0; i < m_children.size(); i++) {
 654         GraphicsLayer* layer = m_children[i];
 655         if (layer) {
 656            FloatRect childrenRect = m_transform.mapRect(rect);
 657            layer->setNeedsDisplayInRect(childrenRect);
 658         }
 659     }
 660
 661     if (!m_haveImage && !drawsContent()) {
 662         LOG("(%x) setNeedsDisplay(%.2f,%.2f,%.2f,%.2f) doesn't have content, bypass...",
 663             this, rect.x(), rect.y(), rect.width(), rect.height());
 664         return;
 665     }
 666
 667     bool addInval = true;
 668     const size_t maxDirtyRects = 8;
 669     for (size_t i = 0; i < m_invalidatedRects.size(); ++i) {
 670         if (m_invalidatedRects[i].contains(rect)) {
 671             addInval = false;
 672             break;
 673         }
 674     }
 675
 676 #ifdef LAYER_DEBUG
 677     LOG("(%x) layer %d setNeedsDisplayInRect(%d) - (%.2f, %.2f, %.2f, %.2f)", this,
 678         m_contentLayer->uniqueId(), m_needsRepaint, rect.x(), rect.y(), rect.width(), rect.height());
 679 #endif
 680
 681     if (addInval) {
 682         if (m_invalidatedRects.size() < maxDirtyRects)
 683             m_invalidatedRects.append(rect);
 684         else
 685             m_invalidatedRects[0].unite(rect);
 686     }
 687
 688     m_needsRepaint = true;
 689     askForSync();
 690 }
 691
 692 void GraphicsLayerAndroid::pauseDisplay(bool state)
 693 {
 694     gPaused = state;
 695     if (gPaused)
 696         gPausedDelay = WTF::currentTime() + 1;
 697 }
 698
 699 bool GraphicsLayerAndroid::addAnimation(const KeyframeValueList& valueList,
 700                                         const IntSize& boxSize,
 701                                         const Animation* anim,
 702                                         const String& keyframesName,
 703                                         double beginTime)
 704 {
 705     if (!anim || anim->isEmptyOrZeroDuration() || valueList.size() < 2)
 706         return false;
 707
 708     bool createdAnimations = false;
 709     if (valueList.property() == AnimatedPropertyWebkitTransform) {
 710         createdAnimations = createTransformAnimationsFromKeyframes(valueList,
 711                                                                    anim,
 712                                                                    keyframesName,
 713                                                                    beginTime,
 714                                                                    boxSize);
 715     } else {
 716         createdAnimations = createAnimationFromKeyframes(valueList,
 717                                                          anim,
 718                                                          keyframesName,
 719                                                          beginTime);
 720     }
 721     if (createdAnimations)
 722         askForSync();
 723     return createdAnimations;
 724 }
 725
 726 bool GraphicsLayerAndroid::createAnimationFromKeyframes(const KeyframeValueList& valueList,
 727      const Animation* animation, const String& keyframesName, double beginTime)
 728 {
 729     bool isKeyframe = valueList.size() > 2;
 730     TLOG("createAnimationFromKeyframes(%d), name(%s) beginTime(%.2f)",
 731         isKeyframe, keyframesName.latin1().data(), beginTime);
 732
 733     switch (valueList.property()) {
 734     case AnimatedPropertyInvalid: break;
 735     case AnimatedPropertyWebkitTransform: break;
 736     case AnimatedPropertyBackgroundColor: break;
 737     case AnimatedPropertyOpacity: {
 738         MLOG("ANIMATEDPROPERTYOPACITY");
 739
 740         KeyframeValueList* operationsList = new KeyframeValueList(AnimatedPropertyOpacity);
 741         for (unsigned int i = 0; i < valueList.size(); i++) {
 742             FloatAnimationValue* originalValue = (FloatAnimationValue*)valueList.at(i);
 743             PassRefPtr<TimingFunction> timingFunction(const_cast<TimingFunction*>(originalValue->timingFunction()));
 744             FloatAnimationValue* value = new FloatAnimationValue(originalValue->keyTime(),
 745                                                                  originalValue->value(),
 746                                                                  timingFunction);
 747             operationsList->insert(value);
 748         }
 749
 750         RefPtr<AndroidOpacityAnimation> anim = AndroidOpacityAnimation::create(animation,
 751                                                                                operationsList,
 752                                                                                beginTime);
 753         if (keyframesName.isEmpty())
 754             anim->setName(propertyIdToString(valueList.property()));
 755         else
 756             anim->setName(keyframesName);
 757
 758         m_contentLayer->addAnimation(anim.release());
 759         needsNotifyClient();
 760         return true;
 761     } break;
 762     }
 763     return false;
 764 }
 765
 766 void GraphicsLayerAndroid::needsNotifyClient()
 767 {
 768     m_needsNotifyClient = true;
 769     askForSync();
 770 }
 771
 772 bool GraphicsLayerAndroid::createTransformAnimationsFromKeyframes(const KeyframeValueList& valueList,
 773                                                                   const Animation* animation,
 774                                                                   const String& keyframesName,
 775                                                                   double beginTime,
 776                                                                   const IntSize& boxSize)
 777 {
 778     ASSERT(valueList.property() == AnimatedPropertyWebkitTransform);
 779     TLOG("createTransformAnimationFromKeyframes, name(%s) beginTime(%.2f)",
 780         keyframesName.latin1().data(), beginTime);
 781
 782     KeyframeValueList* operationsList = new KeyframeValueList(AnimatedPropertyWebkitTransform);
 783     for (unsigned int i = 0; i < valueList.size(); i++) {
 784         TransformAnimationValue* originalValue = (TransformAnimationValue*)valueList.at(i);
 785         PassRefPtr<TimingFunction> timingFunction(const_cast<TimingFunction*>(originalValue->timingFunction()));
 786         TransformAnimationValue* value = new TransformAnimationValue(originalValue->keyTime(),
 787                                                                      originalValue->value(),
 788                                                                      timingFunction);
 789         operationsList->insert(value);
 790     }
 791
 792     RefPtr<AndroidTransformAnimation> anim = AndroidTransformAnimation::create(animation,
 793                                                                                operationsList,
 794                                                                                beginTime);
 795
 796     if (keyframesName.isEmpty())
 797         anim->setName(propertyIdToString(valueList.property()));
 798     else
 799         anim->setName(keyframesName);
 800
 801
 802     m_contentLayer->addAnimation(anim.release());
 803
 804     needsNotifyClient();
 805     return true;
 806 }
 807
 808 void GraphicsLayerAndroid::removeAnimationsForProperty(AnimatedPropertyID anID)
 809 {
 810     TLOG("NRO removeAnimationsForProperty(%d)", anID);
 811     m_contentLayer->removeAnimationsForProperty(anID);
 812     askForSync();
 813 }
 814
 815 void GraphicsLayerAndroid::removeAnimationsForKeyframes(const String& keyframesName)
 816 {
 817     TLOG("NRO removeAnimationsForKeyframes(%s)", keyframesName.latin1().data());
 818     m_contentLayer->removeAnimationsForKeyframes(keyframesName);
 819     askForSync();
 820 }
 821
 822 void GraphicsLayerAndroid::pauseAnimation(const String& keyframesName)
 823 {
 824     TLOG("NRO pauseAnimation(%s)", keyframesName.latin1().data());
 825 }
 826
 827 void GraphicsLayerAndroid::suspendAnimations(double time)
 828 {
 829     TLOG("NRO suspendAnimations(%.2f)", time);
 830 }
 831
 832 void GraphicsLayerAndroid::resumeAnimations()
 833 {
 834     TLOG("NRO resumeAnimations()");
 835 }
 836
 837 void GraphicsLayerAndroid::setContentsToImage(Image* image)
 838 {
 839     TLOG("(%x) setContentsToImage", this, image);
 840     if (image) {
 841         m_haveContents = true;
 842         m_haveImage = true;
 843         // Only pass the new image if it's a different one
 844         if (image->nativeImageForCurrentFrame() != m_imageRef) {
 845             m_newImage = true;
 846             m_contentLayer->setContentsImage(image->nativeImageForCurrentFrame());
 847             // remember the passed image.
 848             m_imageRef = image->nativeImageForCurrentFrame();
 849             setNeedsDisplay();
 850             askForSync();
 851         }
 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)