| /* |
| * Copyright (C) 1998, 1999 Torben Weis <weis@kde.org> |
| * 1999 Lars Knoll <knoll@kde.org> |
| * 1999 Antti Koivisto <koivisto@kde.org> |
| * 2000 Dirk Mueller <mueller@kde.org> |
| * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved. |
| * (C) 2006 Graham Dennis (graham.dennis@gmail.com) |
| * (C) 2006 Alexey Proskuryakov (ap@nypop.com) |
| * Copyright (C) 2009 Google Inc. All rights reserved. |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public License |
| * along with this library; see the file COPYING.LIB. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| */ |
| |
| #include "sky/engine/core/frame/FrameView.h" |
| |
| #include "gen/sky/platform/RuntimeEnabledFeatures.h" |
| #include "sky/engine/core/css/resolver/StyleResolver.h" |
| #include "sky/engine/core/dom/DocumentMarkerController.h" |
| #include "sky/engine/core/frame/FrameHost.h" |
| #include "sky/engine/core/frame/LocalFrame.h" |
| #include "sky/engine/core/frame/Settings.h" |
| #include "sky/engine/core/loader/FrameLoaderClient.h" |
| #include "sky/engine/core/page/ChromeClient.h" |
| #include "sky/engine/core/page/Page.h" |
| #include "sky/engine/core/rendering/RenderLayer.h" |
| #include "sky/engine/core/rendering/RenderView.h" |
| #include "sky/engine/core/rendering/style/RenderStyle.h" |
| #include "sky/engine/platform/ScriptForbiddenScope.h" |
| #include "sky/engine/platform/TraceEvent.h" |
| #include "sky/engine/platform/fonts/FontCache.h" |
| #include "sky/engine/platform/geometry/FloatRect.h" |
| #include "sky/engine/platform/graphics/GraphicsContext.h" |
| #include "sky/engine/platform/text/TextStream.h" |
| #include "sky/engine/wtf/CurrentTime.h" |
| #include "sky/engine/wtf/TemporaryChange.h" |
| |
| namespace blink { |
| |
| double FrameView::s_currentFrameTimeStamp = 0.0; |
| bool FrameView::s_inPaintContents = false; |
| |
| FrameView::FrameView(LocalFrame* frame) |
| : m_frame(frame) |
| , m_hasPendingLayout(false) |
| , m_layoutSubtreeRoot(0) |
| , m_inSynchronousPostLayout(false) |
| , m_postLayoutTasksTimer(this, &FrameView::postLayoutTimerFired) |
| , m_isTransparent(false) |
| , m_baseBackgroundColor(Color::white) |
| , m_mediaType("screen") |
| , m_overflowStatusDirty(true) |
| , m_viewportRenderer(0) |
| , m_hasSoftwareFilters(false) |
| , m_visibleContentScaleFactor(1) |
| , m_inputEventsScaleFactorForEmulation(1) |
| , m_layoutSizeFixedToFrameSize(true) |
| { |
| ASSERT(m_frame); |
| init(); |
| } |
| |
| PassRefPtr<FrameView> FrameView::create(LocalFrame* frame) |
| { |
| RefPtr<FrameView> view = adoptRef(new FrameView(frame)); |
| return view.release(); |
| } |
| |
| PassRefPtr<FrameView> FrameView::create(LocalFrame* frame, const IntSize& initialSize) |
| { |
| RefPtr<FrameView> view = adoptRef(new FrameView(frame)); |
| view->Widget::setFrameRect(IntRect(view->location(), initialSize)); |
| view->setLayoutSizeInternal(initialSize); |
| return view.release(); |
| } |
| |
| FrameView::~FrameView() |
| { |
| if (m_postLayoutTasksTimer.isActive()) |
| m_postLayoutTasksTimer.stop(); |
| |
| ASSERT(m_frame); |
| ASSERT(m_frame->view() != this || !m_frame->contentRenderer()); |
| } |
| |
| void FrameView::reset() |
| { |
| m_hasPendingLayout = false; |
| m_layoutSubtreeRoot = 0; |
| m_layoutSchedulingEnabled = true; |
| m_inPerformLayout = false; |
| m_inSynchronousPostLayout = false; |
| m_layoutCount = 0; |
| m_nestedLayoutCount = 0; |
| m_postLayoutTasksTimer.stop(); |
| m_firstLayout = true; |
| m_lastViewportSize = IntSize(); |
| m_lastPaintTime = 0; |
| m_isPainting = false; |
| } |
| |
| void FrameView::init() |
| { |
| reset(); |
| |
| m_size = LayoutSize(); |
| } |
| |
| void FrameView::prepareForDetach() |
| { |
| // FIXME(sky): Remove |
| } |
| |
| void FrameView::clear() |
| { |
| reset(); |
| } |
| |
| bool FrameView::didFirstLayout() const |
| { |
| return !m_firstLayout; |
| } |
| |
| void FrameView::setFrameRect(const IntRect& newRect) |
| { |
| IntRect oldRect = frameRect(); |
| if (newRect == oldRect) |
| return; |
| |
| Widget::setFrameRect(newRect); |
| } |
| |
| Page* FrameView::page() const |
| { |
| return frame().page(); |
| } |
| |
| RenderView* FrameView::renderView() const |
| { |
| return frame().contentRenderer(); |
| } |
| |
| IntPoint FrameView::clampOffsetAtScale(const IntPoint& offset, float scale) const |
| { |
| FloatSize scaledSize = unscaledVisibleContentSize(); |
| if (scale) |
| scaledSize.scale(1 / scale); |
| |
| IntPoint clampedOffset = offset; |
| clampedOffset = clampedOffset.shrunkTo( |
| IntPoint(size()) - expandedIntSize(scaledSize)); |
| return clampedOffset; |
| } |
| |
| void FrameView::recalcOverflowAfterStyleChange() |
| { |
| RenderView* renderView = this->renderView(); |
| RELEASE_ASSERT(renderView); |
| if (!renderView->needsOverflowRecalcAfterStyleChange()) |
| return; |
| |
| renderView->recalcOverflowAfterStyleChange(); |
| } |
| |
| RenderObject* FrameView::layoutRoot(bool onlyDuringLayout) const |
| { |
| return onlyDuringLayout && layoutPending() ? 0 : m_layoutSubtreeRoot; |
| } |
| |
| void FrameView::performPreLayoutTasks() |
| { |
| TRACE_EVENT0("blink", "FrameView::performPreLayoutTasks"); |
| |
| // Don't schedule more layouts, we're in one. |
| TemporaryChange<bool> changeSchedulingEnabled(m_layoutSchedulingEnabled, false); |
| |
| if (!m_nestedLayoutCount && !m_inSynchronousPostLayout && m_postLayoutTasksTimer.isActive()) { |
| // This is a new top-level layout. If there are any remaining tasks from the previous layout, finish them now. |
| m_inSynchronousPostLayout = true; |
| performPostLayoutTasks(); |
| m_inSynchronousPostLayout = false; |
| } |
| |
| Document* document = m_frame->document(); |
| if (wasViewportResized()) { |
| document->notifyResizeForViewportUnits(); |
| document->mediaQueryAffectingValueChanged(); |
| |
| // TODO(esprehn): This is way too much work, it rebuilds the entire sheet list |
| // and does a full document recalc. |
| document->styleResolverChanged(); |
| } |
| |
| document->updateRenderTreeIfNeeded(); |
| } |
| |
| void FrameView::performLayout(RenderObject* rootForThisLayout, bool inSubtreeLayout) |
| { |
| TRACE_EVENT0("blink", "FrameView::performLayout"); |
| |
| ScriptForbiddenScope forbidScript; |
| |
| ASSERT(!isInPerformLayout()); |
| |
| TemporaryChange<bool> changeInPerformLayout(m_inPerformLayout, true); |
| |
| // performLayout is the actual guts of layout(). |
| // FIXME: The 300 other lines in layout() probably belong in other helper functions |
| // so that a single human could understand what layout() is actually doing. |
| rootForThisLayout->layout(); |
| } |
| |
| void FrameView::scheduleOrPerformPostLayoutTasks() |
| { |
| if (m_postLayoutTasksTimer.isActive()) |
| return; |
| |
| if (!m_inSynchronousPostLayout) { |
| m_inSynchronousPostLayout = true; |
| // Calls resumeScheduledEvents() |
| performPostLayoutTasks(); |
| m_inSynchronousPostLayout = false; |
| } |
| |
| if (!m_postLayoutTasksTimer.isActive() && (needsLayout() || m_inSynchronousPostLayout)) { |
| // If we need layout or are already in a synchronous call to postLayoutTasks(), |
| // defer widget updates and event dispatch until after we return. postLayoutTasks() |
| // can make us need to update again, and we can get stuck in a nasty cycle unless |
| // we call it through the timer here. |
| m_postLayoutTasksTimer.startOneShot(0, FROM_HERE); |
| if (needsLayout()) |
| layout(); |
| } |
| } |
| |
| void FrameView::layout(bool allowSubtree) |
| { |
| // We should never layout a Document which is not in a LocalFrame. |
| ASSERT(m_frame); |
| ASSERT(m_frame->view() == this); |
| |
| ScriptForbiddenScope forbidScript; |
| |
| if (isInPerformLayout() || !m_frame->document()->isActive()) |
| return; |
| |
| TRACE_EVENT0("blink", "FrameView::layout"); |
| TRACE_EVENT_SCOPED_SAMPLING_STATE("blink", "Layout"); |
| |
| // Protect the view from being deleted during layout (in recalcStyle) |
| RefPtr<FrameView> protector(this); |
| |
| m_hasPendingLayout = false; |
| |
| RELEASE_ASSERT(!isPainting()); |
| |
| if (!allowSubtree && isSubtreeLayout()) { |
| m_layoutSubtreeRoot->markContainingBlocksForLayout(false); |
| m_layoutSubtreeRoot = 0; |
| } |
| |
| performPreLayoutTasks(); |
| |
| // If there is only one ref to this view left, then its going to be destroyed as soon as we exit, |
| // so there's no point to continuing to layout |
| if (protector->hasOneRef()) |
| return; |
| |
| Document* document = m_frame->document(); |
| bool inSubtreeLayout = isSubtreeLayout(); |
| RenderObject* rootForThisLayout = inSubtreeLayout ? m_layoutSubtreeRoot : document->renderView(); |
| if (!rootForThisLayout) { |
| // FIXME: Do we need to set m_size here? |
| ASSERT_NOT_REACHED(); |
| return; |
| } |
| |
| FontCachePurgePreventer fontCachePurgePreventer; |
| RenderLayer* layer; |
| { |
| TemporaryChange<bool> changeSchedulingEnabled(m_layoutSchedulingEnabled, false); |
| |
| m_nestedLayoutCount++; |
| |
| if (!inSubtreeLayout) { |
| if (m_firstLayout) { |
| m_firstLayout = false; |
| m_lastViewportSize = layoutSize(); |
| } |
| |
| m_size = LayoutSize(layoutSize()); |
| } |
| |
| layer = rootForThisLayout->enclosingLayer(); |
| |
| performLayout(rootForThisLayout, inSubtreeLayout); |
| |
| m_layoutSubtreeRoot = 0; |
| } // Reset m_layoutSchedulingEnabled to its previous value. |
| |
| layer->updateLayerPositionsAfterLayout(); |
| |
| m_layoutCount++; |
| |
| ASSERT(!rootForThisLayout->needsLayout()); |
| |
| scheduleOrPerformPostLayoutTasks(); |
| |
| m_nestedLayoutCount--; |
| if (m_nestedLayoutCount) |
| return; |
| |
| #if ENABLE(ASSERT) |
| // Post-layout assert that nobody was re-marked as needing layout during layout. |
| document->renderView()->assertSubtreeIsLaidOut(); |
| #endif |
| } |
| |
| void FrameView::setMediaType(const AtomicString& mediaType) |
| { |
| ASSERT(m_frame->document()); |
| m_frame->document()->mediaQueryAffectingValueChanged(); |
| m_mediaType = mediaType; |
| } |
| |
| AtomicString FrameView::mediaType() const |
| { |
| // See if we have an override type. |
| String overrideType; |
| if (!overrideType.isNull()) |
| return AtomicString(overrideType); |
| return m_mediaType; |
| } |
| |
| // FIXME(sky): remove |
| IntSize FrameView::layoutSize() const |
| { |
| return m_layoutSize; |
| } |
| |
| void FrameView::setLayoutSize(const IntSize& size) |
| { |
| ASSERT(!layoutSizeFixedToFrameSize()); |
| |
| setLayoutSizeInternal(size); |
| } |
| |
| HostWindow* FrameView::hostWindow() const |
| { |
| return frame().page(); |
| } |
| |
| void FrameView::contentsResized() |
| { |
| setNeedsLayout(); |
| } |
| |
| void FrameView::scheduleRelayout() |
| { |
| ASSERT(m_frame->view() == this); |
| |
| if (isSubtreeLayout()) { |
| m_layoutSubtreeRoot->markContainingBlocksForLayout(false); |
| m_layoutSubtreeRoot = 0; |
| } |
| if (!m_layoutSchedulingEnabled) |
| return; |
| if (!needsLayout()) |
| return; |
| if (!m_frame->document()->isActive()) |
| return; |
| |
| if (m_hasPendingLayout) |
| return; |
| m_hasPendingLayout = true; |
| |
| m_frame->document()->scheduleVisualUpdate(); |
| } |
| |
| static bool isObjectAncestorContainerOf(RenderObject* ancestor, RenderObject* descendant) |
| { |
| for (RenderObject* r = descendant; r; r = r->container()) { |
| if (r == ancestor) |
| return true; |
| } |
| return false; |
| } |
| |
| void FrameView::scheduleRelayoutOfSubtree(RenderObject* relayoutRoot) |
| { |
| ASSERT(m_frame->view() == this); |
| |
| if (!m_frame->document()->isActive()) |
| return; |
| |
| RenderView* renderView = this->renderView(); |
| if (renderView && renderView->needsLayout()) { |
| if (relayoutRoot) |
| relayoutRoot->markContainingBlocksForLayout(false); |
| return; |
| } |
| |
| if (layoutPending() || !m_layoutSchedulingEnabled) { |
| if (m_layoutSubtreeRoot != relayoutRoot) { |
| if (isObjectAncestorContainerOf(m_layoutSubtreeRoot, relayoutRoot)) { |
| // Keep the current root |
| relayoutRoot->markContainingBlocksForLayout(false, m_layoutSubtreeRoot); |
| ASSERT(!m_layoutSubtreeRoot->container() || !m_layoutSubtreeRoot->container()->needsLayout()); |
| } else if (isSubtreeLayout() && isObjectAncestorContainerOf(relayoutRoot, m_layoutSubtreeRoot)) { |
| // Re-root at relayoutRoot |
| m_layoutSubtreeRoot->markContainingBlocksForLayout(false, relayoutRoot); |
| m_layoutSubtreeRoot = relayoutRoot; |
| ASSERT(!m_layoutSubtreeRoot->container() || !m_layoutSubtreeRoot->container()->needsLayout()); |
| } else { |
| // Just do a full relayout |
| if (isSubtreeLayout()) |
| m_layoutSubtreeRoot->markContainingBlocksForLayout(false); |
| m_layoutSubtreeRoot = 0; |
| relayoutRoot->markContainingBlocksForLayout(false); |
| } |
| } |
| } else if (m_layoutSchedulingEnabled) { |
| m_layoutSubtreeRoot = relayoutRoot; |
| ASSERT(!m_layoutSubtreeRoot->container() || !m_layoutSubtreeRoot->container()->needsLayout()); |
| m_hasPendingLayout = true; |
| |
| m_frame->document()->scheduleVisualUpdate(); |
| } |
| } |
| |
| bool FrameView::layoutPending() const |
| { |
| // FIXME: This should check Document::lifecycle instead. |
| return m_hasPendingLayout; |
| } |
| |
| bool FrameView::isInPerformLayout() const |
| { |
| return m_inPerformLayout; |
| } |
| |
| bool FrameView::needsLayout() const |
| { |
| RenderView* renderView = this->renderView(); |
| return layoutPending() |
| || (renderView && renderView->needsLayout()) |
| || isSubtreeLayout(); |
| } |
| |
| void FrameView::setNeedsLayout() |
| { |
| if (RenderView* renderView = this->renderView()) |
| renderView->setNeedsLayout(); |
| } |
| |
| bool FrameView::isTransparent() const |
| { |
| return m_isTransparent; |
| } |
| |
| void FrameView::setTransparent(bool isTransparent) |
| { |
| m_isTransparent = isTransparent; |
| } |
| |
| Color FrameView::baseBackgroundColor() const |
| { |
| return m_baseBackgroundColor; |
| } |
| |
| void FrameView::setBaseBackgroundColor(const Color& backgroundColor) |
| { |
| m_baseBackgroundColor = backgroundColor; |
| } |
| |
| void FrameView::updateBackgroundRecursively(const Color& backgroundColor, bool transparent) |
| { |
| // FIXME(sky): simplify |
| setTransparent(transparent); |
| setBaseBackgroundColor(backgroundColor); |
| } |
| |
| void FrameView::flushAnyPendingPostLayoutTasks() |
| { |
| ASSERT(!isInPerformLayout()); |
| if (m_postLayoutTasksTimer.isActive()) |
| performPostLayoutTasks(); |
| } |
| |
| void FrameView::performPostLayoutTasks() |
| { |
| // FIXME: We can reach here, even when the page is not active! |
| // http/tests/inspector/elements/html-link-import.html and many other |
| // tests hit that case. |
| // We should ASSERT(isActive()); or at least return early if we can! |
| ASSERT(!isInPerformLayout()); // Always before or after performLayout(), part of the highest-level layout() call. |
| TRACE_EVENT0("blink", "FrameView::performPostLayoutTasks"); |
| RefPtr<FrameView> protect(this); |
| |
| m_postLayoutTasksTimer.stop(); |
| |
| ASSERT(m_frame->document()); |
| sendResizeEventIfNeeded(); |
| } |
| |
| bool FrameView::wasViewportResized() |
| { |
| return layoutSize() != m_lastViewportSize; |
| } |
| |
| void FrameView::sendResizeEventIfNeeded() |
| { |
| } |
| |
| void FrameView::postLayoutTimerFired(Timer<FrameView>*) |
| { |
| performPostLayoutTasks(); |
| } |
| |
| IntRect FrameView::windowClipRect() const |
| { |
| ASSERT(m_frame->view() == this); |
| |
| if (paintsEntireContents()) |
| return IntRect(IntPoint(), size()); |
| |
| // Set our clip rect to be our contents. |
| IntRect clipRect = contentsToWindow(visibleContentRect()); |
| return clipRect; |
| } |
| |
| bool FrameView::isActive() const |
| { |
| return false; |
| } |
| |
| void FrameView::setVisibleContentScaleFactor(float visibleContentScaleFactor) |
| { |
| if (m_visibleContentScaleFactor == visibleContentScaleFactor) |
| return; |
| m_visibleContentScaleFactor = visibleContentScaleFactor; |
| } |
| |
| void FrameView::setInputEventsTransformForEmulation(const IntSize& offset, float contentScaleFactor) |
| { |
| m_inputEventsOffsetForEmulation = offset; |
| m_inputEventsScaleFactorForEmulation = contentScaleFactor; |
| } |
| |
| IntSize FrameView::inputEventsOffsetForEmulation() const |
| { |
| return m_inputEventsOffsetForEmulation; |
| } |
| |
| float FrameView::inputEventsScaleFactor() const |
| { |
| float pageScale = visibleContentScaleFactor(); |
| return pageScale * m_inputEventsScaleFactorForEmulation; |
| } |
| |
| void FrameView::paint(GraphicsContext* context, const IntRect& rect) |
| { |
| #ifndef NDEBUG |
| bool fillWithRed; |
| if (isTransparent()) |
| fillWithRed = false; // Transparent, don't fill with red. |
| else |
| fillWithRed = true; |
| |
| if (fillWithRed) |
| context->fillRect(rect, Color(0xFF, 0, 0)); |
| #endif |
| |
| RenderView* renderView = this->renderView(); |
| if (!renderView) { |
| WTF_LOG_ERROR("called FrameView::paint with nil renderer"); |
| return; |
| } |
| |
| RELEASE_ASSERT(!needsLayout()); |
| |
| bool isTopLevelPainter = !s_inPaintContents; |
| s_inPaintContents = true; |
| |
| FontCachePurgePreventer fontCachePurgePreventer; |
| |
| ASSERT(!m_isPainting); |
| m_isPainting = true; |
| |
| #if ENABLE(ASSERT) |
| renderView->assertSubtreeIsLaidOut(); |
| RenderObject::SetLayoutNeededForbiddenScope forbidSetNeedsLayout(*renderView); |
| #endif |
| |
| LayerPaintingInfo paintingInfo(renderView->layer(), |
| pixelSnappedIntRect(renderView->viewRect()), LayoutSize()); |
| renderView->paintLayer(context, paintingInfo); |
| |
| m_isPainting = false; |
| m_lastPaintTime = currentTime(); |
| |
| if (isTopLevelPainter) { |
| // Everything that happens after paintContents completions is considered |
| // to be part of the next frame. |
| s_currentFrameTimeStamp = currentTime(); |
| s_inPaintContents = false; |
| } |
| } |
| |
| bool FrameView::isPainting() const |
| { |
| return m_isPainting; |
| } |
| |
| void FrameView::updateLayoutAndStyleForPainting() |
| { |
| // Updating layout can run script, which can tear down the FrameView. |
| RefPtr<FrameView> protector(this); |
| |
| updateLayoutAndStyleIfNeededRecursive(); |
| } |
| |
| void FrameView::updateLayoutAndStyleIfNeededRecursive() |
| { |
| // We have to crawl our entire tree looking for any FrameViews that need |
| // layout and make sure they are up to date. |
| // Mac actually tests for intersection with the dirty region and tries not to |
| // update layout for frames that are outside the dirty region. Not only does this seem |
| // pointless (since those frames will have set a zero timer to layout anyway), but |
| // it is also incorrect, since if two frames overlap, the first could be excluded from the dirty |
| // region but then become included later by the second frame adding rects to the dirty region |
| // when it lays out. |
| |
| m_frame->document()->updateRenderTreeIfNeeded(); |
| |
| if (needsLayout()) |
| layout(); |
| |
| // These asserts ensure that parent frames are clean, when child frames finished updating layout and style. |
| ASSERT(!needsLayout()); |
| |
| #if ENABLE(ASSERT) |
| m_frame->document()->renderView()->assertRendererLaidOut(); |
| #endif |
| |
| } |
| |
| void FrameView::forceLayout(bool allowSubtree) |
| { |
| layout(allowSubtree); |
| } |
| |
| IntRect FrameView::convertFromRenderer(const RenderObject& renderer, const IntRect& rendererRect) const |
| { |
| return pixelSnappedIntRect(enclosingLayoutRect(renderer.localToAbsoluteQuad(FloatRect(rendererRect)).boundingBox())); |
| } |
| |
| IntRect FrameView::convertToRenderer(const RenderObject& renderer, const IntRect& viewRect) const |
| { |
| IntRect rect = viewRect; |
| // FIXME: we don't have a way to map an absolute rect down to a local quad, so just |
| // move the rect for now. |
| rect.setLocation(roundedIntPoint(renderer.absoluteToLocal(rect.location(), UseTransforms))); |
| return rect; |
| } |
| |
| IntPoint FrameView::convertFromRenderer(const RenderObject& renderer, const IntPoint& rendererPoint) const |
| { |
| return roundedIntPoint(renderer.localToAbsolute(rendererPoint, UseTransforms)); |
| } |
| |
| IntPoint FrameView::convertToRenderer(const RenderObject& renderer, const IntPoint& viewPoint) const |
| { |
| return roundedIntPoint(renderer.absoluteToLocal(viewPoint, UseTransforms)); |
| } |
| |
| bool FrameView::isVerticalDocument() const |
| { |
| // FIXME(sky): Remove |
| return true; |
| } |
| |
| bool FrameView::isFlippedDocument() const |
| { |
| // FIXME(sky): Remove |
| return false; |
| } |
| |
| void FrameView::setLayoutSizeInternal(const IntSize& size) |
| { |
| if (m_layoutSize == size) |
| return; |
| |
| m_layoutSize = size; |
| contentsResized(); |
| } |
| |
| void FrameView::countObjectsNeedingLayout(unsigned& needsLayoutObjects, unsigned& totalObjects, bool& isPartial) |
| { |
| RenderObject* root = layoutRoot(); |
| isPartial = true; |
| if (!root) { |
| isPartial = false; |
| root = m_frame->contentRenderer(); |
| } |
| |
| needsLayoutObjects = 0; |
| totalObjects = 0; |
| |
| for (RenderObject* o = root; o; o = o->nextInPreOrder(root)) { |
| ++totalObjects; |
| if (o->needsLayout()) |
| ++needsLayoutObjects; |
| } |
| } |
| |
| } // namespace blink |