| /* |
| * Copyright (C) 2004-2017 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "config.h" |
| #include "RenderTreeAsText.h" |
| |
| #include "ClipRect.h" |
| #include "ColorSerialization.h" |
| #include "Document.h" |
| #include "ElementInlines.h" |
| #include "Frame.h" |
| #include "FrameSelection.h" |
| #include "FrameView.h" |
| #include "HTMLElement.h" |
| #include "HTMLNames.h" |
| #include "HTMLSpanElement.h" |
| #include "InlineIteratorTextBox.h" |
| #include "LegacyInlineTextBox.h" |
| #include "LegacyRenderSVGContainer.h" |
| #include "LegacyRenderSVGRoot.h" |
| #include "LegacyRenderSVGShape.h" |
| #include "Logging.h" |
| #include "PrintContext.h" |
| #include "PseudoElement.h" |
| #include "RenderBlockFlow.h" |
| #include "RenderCounter.h" |
| #include "RenderDetailsMarker.h" |
| #include "RenderFileUploadControl.h" |
| #include "RenderFragmentContainer.h" |
| #include "RenderInline.h" |
| #include "RenderIterator.h" |
| #include "RenderLayer.h" |
| #include "RenderLayerBacking.h" |
| #include "RenderLayerScrollableArea.h" |
| #include "RenderLineBreak.h" |
| #include "RenderListItem.h" |
| #include "RenderListMarker.h" |
| #include "RenderQuote.h" |
| #include "RenderRuby.h" |
| #include "RenderSVGContainer.h" |
| #include "RenderSVGGradientStop.h" |
| #include "RenderSVGImage.h" |
| #include "RenderSVGInlineText.h" |
| #include "RenderSVGResourceContainer.h" |
| #include "RenderSVGRoot.h" |
| #include "RenderSVGShape.h" |
| #include "RenderSVGText.h" |
| #include "RenderTableCell.h" |
| #include "RenderView.h" |
| #include "RenderWidget.h" |
| #include "SVGRenderTreeAsText.h" |
| #include "ShadowRoot.h" |
| #include "StyleProperties.h" |
| #include <wtf/HexNumber.h> |
| #include <wtf/Vector.h> |
| #include <wtf/text/TextStream.h> |
| #include <wtf/unicode/CharacterNames.h> |
| |
| #if PLATFORM(MAC) |
| #include "ScrollbarThemeMac.h" |
| #endif |
| |
| namespace WebCore { |
| |
| using namespace HTMLNames; |
| |
| static void writeLayers(TextStream&, const RenderLayer& rootLayer, RenderLayer&, const LayoutRect& paintDirtyRect, OptionSet<RenderAsTextFlag>); |
| |
| static void printBorderStyle(TextStream& ts, const BorderStyle borderStyle) |
| { |
| switch (borderStyle) { |
| case BorderStyle::None: |
| ts << "none"; |
| break; |
| case BorderStyle::Hidden: |
| ts << "hidden"; |
| break; |
| case BorderStyle::Inset: |
| ts << "inset"; |
| break; |
| case BorderStyle::Groove: |
| ts << "groove"; |
| break; |
| case BorderStyle::Ridge: |
| ts << "ridge"; |
| break; |
| case BorderStyle::Outset: |
| ts << "outset"; |
| break; |
| case BorderStyle::Dotted: |
| ts << "dotted"; |
| break; |
| case BorderStyle::Dashed: |
| ts << "dashed"; |
| break; |
| case BorderStyle::Solid: |
| ts << "solid"; |
| break; |
| case BorderStyle::Double: |
| ts << "double"; |
| break; |
| } |
| |
| ts << " "; |
| } |
| |
| static String getTagName(Node* n) |
| { |
| if (n->isDocumentNode()) |
| return ""_s; |
| if (n->nodeType() == Node::COMMENT_NODE) |
| return "COMMENT"_s; |
| return n->nodeName(); |
| } |
| |
| static bool isEmptyOrUnstyledAppleStyleSpan(const Node* node) |
| { |
| if (!is<HTMLSpanElement>(node)) |
| return false; |
| |
| const HTMLElement& element = downcast<HTMLSpanElement>(*node); |
| if (element.getAttribute(classAttr) != "Apple-style-span"_s) |
| return false; |
| |
| if (!node->hasChildNodes()) |
| return true; |
| |
| const StyleProperties* inlineStyleDecl = element.inlineStyle(); |
| return (!inlineStyleDecl || inlineStyleDecl->isEmpty()); |
| } |
| |
| String quoteAndEscapeNonPrintables(StringView s) |
| { |
| StringBuilder result; |
| result.append('"'); |
| for (unsigned i = 0; i != s.length(); ++i) { |
| UChar c = s[i]; |
| if (c == '\\') { |
| result.append("\\\\"); |
| } else if (c == '"') { |
| result.append("\\\""); |
| } else if (c == '\n' || c == noBreakSpace) |
| result.append(' '); |
| else { |
| if (c >= 0x20 && c < 0x7F) |
| result.append(c); |
| else |
| result.append("\\x{", hex(c), '}'); |
| } |
| } |
| result.append('"'); |
| return result.toString(); |
| } |
| |
| static inline bool isRenderInlineEmpty(const RenderInline& inlineRenderer) |
| { |
| if (isEmptyInline(inlineRenderer)) |
| return true; |
| |
| for (auto& child : childrenOfType<RenderObject>(inlineRenderer)) { |
| if (child.isFloatingOrOutOfFlowPositioned()) |
| continue; |
| auto isChildEmpty = false; |
| if (is<RenderInline>(child)) |
| isChildEmpty = isRenderInlineEmpty(downcast<RenderInline>(child)); |
| else if (is<RenderText>(child)) |
| isChildEmpty = !downcast<RenderText>(child).linesBoundingBox().height(); |
| if (!isChildEmpty) |
| return false; |
| } |
| return true; |
| } |
| |
| static inline bool hasNonEmptySibling(const RenderInline& inlineRenderer) |
| { |
| auto* parent = inlineRenderer.parent(); |
| if (!parent) |
| return false; |
| |
| for (auto& sibling : childrenOfType<RenderObject>(*parent)) { |
| if (&sibling == &inlineRenderer || sibling.isFloatingOrOutOfFlowPositioned()) |
| continue; |
| if (!is<RenderInline>(sibling)) |
| return true; |
| auto& siblingRendererInline = downcast<RenderInline>(sibling); |
| if (siblingRendererInline.mayAffectLayout() || !isRenderInlineEmpty(siblingRendererInline)) |
| return true; |
| } |
| return false; |
| } |
| |
| void RenderTreeAsText::writeRenderObject(TextStream& ts, const RenderObject& o, OptionSet<RenderAsTextFlag> behavior) |
| { |
| ts << o.renderName().characters(); |
| |
| if (behavior.contains(RenderAsTextFlag::ShowAddresses)) |
| ts << " " << &o; |
| |
| if (o.style().usedZIndex()) // FIXME: This should use !hasAutoUsedZIndex(). |
| ts << " zI: " << o.style().usedZIndex(); |
| |
| if (o.node()) { |
| String tagName = getTagName(o.node()); |
| // FIXME: Temporary hack to make tests pass by simulating the old generated content output. |
| if (o.isPseudoElement() || (o.parent() && o.parent()->isPseudoElement())) |
| tagName = emptyAtom(); |
| if (!tagName.isEmpty()) { |
| ts << " {" << tagName << "}"; |
| // flag empty or unstyled AppleStyleSpan because we never |
| // want to leave them in the DOM |
| if (isEmptyOrUnstyledAppleStyleSpan(o.node())) |
| ts << " *empty or unstyled AppleStyleSpan*"; |
| } |
| } |
| |
| RenderBlock* cb = o.containingBlock(); |
| bool adjustForTableCells = cb ? cb->isTableCell() : false; |
| |
| LayoutRect r; |
| if (is<RenderText>(o)) { |
| // FIXME: Would be better to dump the bounding box x and y rather than the first run's x and y, but that would involve updating |
| // many test results. |
| const RenderText& text = downcast<RenderText>(o); |
| r = IntRect(text.firstRunLocation(), text.linesBoundingBox().size()); |
| if (!InlineIterator::firstTextBoxFor(text)) |
| adjustForTableCells = false; |
| } else if (o.isBR()) { |
| const RenderLineBreak& br = downcast<RenderLineBreak>(o); |
| IntRect linesBox = br.linesBoundingBox(); |
| r = IntRect(linesBox.x(), linesBox.y(), linesBox.width(), linesBox.height()); |
| if (!br.inlineBoxWrapper() && !InlineIterator::boxFor(br)) |
| adjustForTableCells = false; |
| } else if (is<RenderInline>(o)) { |
| const RenderInline& inlineFlow = downcast<RenderInline>(o); |
| // FIXME: Would be better not to just dump 0, 0 as the x and y here. |
| auto width = inlineFlow.linesBoundingBox().width(); |
| auto inlineHeight = [&] { |
| // Let's match legacy line layout's RenderInline behavior and report 0 height when the inline box is "empty". |
| // FIXME: Remove and rebaseline when LFC inline boxes are enabled (see webkit.org/b/220722) |
| auto height = inlineFlow.linesBoundingBox().height(); |
| if (width) |
| return height; |
| if (is<RenderQuote>(inlineFlow) || is<RenderRubyAsInline>(inlineFlow)) |
| return height; |
| if (inlineFlow.marginStart() || inlineFlow.marginEnd()) |
| return height; |
| // This is mostly pre/post continuation content. Also see webkit.org/b/220735 |
| if (hasNonEmptySibling(inlineFlow)) |
| return height; |
| if (isRenderInlineEmpty(inlineFlow)) |
| return 0; |
| return height; |
| }; |
| r = IntRect(0, 0, width, inlineHeight()); |
| adjustForTableCells = false; |
| } else if (is<RenderTableCell>(o)) { |
| // FIXME: Deliberately dump the "inner" box of table cells, since that is what current results reflect. We'd like |
| // to clean up the results to dump both the outer box and the intrinsic padding so that both bits of information are |
| // captured by the results. |
| const RenderTableCell& cell = downcast<RenderTableCell>(o); |
| r = LayoutRect(cell.x(), cell.y() + cell.intrinsicPaddingBefore(), cell.width(), cell.height() - cell.intrinsicPaddingBefore() - cell.intrinsicPaddingAfter()); |
| } else if (is<RenderBox>(o)) |
| r = downcast<RenderBox>(o).frameRect(); |
| |
| // FIXME: Temporary in order to ensure compatibility with existing layout test results. |
| if (adjustForTableCells) |
| r.move(0_lu, -downcast<RenderTableCell>(*o.containingBlock()).intrinsicPaddingBefore()); |
| |
| // FIXME: Convert layout test results to report sub-pixel values, in the meantime using enclosingIntRect |
| // for consistency with old results. |
| ts << " " << enclosingIntRect(r); |
| |
| if (!is<RenderText>(o)) { |
| if (is<RenderFileUploadControl>(o)) |
| ts << " " << quoteAndEscapeNonPrintables(downcast<RenderFileUploadControl>(o).fileTextValue()); |
| |
| if (o.parent()) { |
| Color color = o.style().visitedDependentColor(CSSPropertyColor); |
| if (!equalIgnoringSemanticColor(o.parent()->style().visitedDependentColor(CSSPropertyColor), color)) |
| ts << " [color=" << serializationForRenderTreeAsText(color) << "]"; |
| |
| // Do not dump invalid or transparent backgrounds, since that is the default. |
| Color backgroundColor = o.style().visitedDependentColor(CSSPropertyBackgroundColor); |
| if (!equalIgnoringSemanticColor(o.parent()->style().visitedDependentColor(CSSPropertyBackgroundColor), backgroundColor) |
| && backgroundColor != Color::transparentBlack) |
| ts << " [bgcolor=" << serializationForRenderTreeAsText(backgroundColor) << "]"; |
| |
| Color textFillColor = o.style().visitedDependentColor(CSSPropertyWebkitTextFillColor); |
| if (!equalIgnoringSemanticColor(o.parent()->style().visitedDependentColor(CSSPropertyWebkitTextFillColor), textFillColor) |
| && textFillColor != color && textFillColor != Color::transparentBlack) |
| ts << " [textFillColor=" << serializationForRenderTreeAsText(textFillColor) << "]"; |
| |
| Color textStrokeColor = o.style().visitedDependentColor(CSSPropertyWebkitTextStrokeColor); |
| if (!equalIgnoringSemanticColor(o.parent()->style().visitedDependentColor(CSSPropertyWebkitTextStrokeColor), textStrokeColor) |
| && textStrokeColor != color && textStrokeColor != Color::transparentBlack) |
| ts << " [textStrokeColor=" << serializationForRenderTreeAsText(textStrokeColor) << "]"; |
| |
| if (o.parent()->style().textStrokeWidth() != o.style().textStrokeWidth() && o.style().textStrokeWidth() > 0) |
| ts << " [textStrokeWidth=" << o.style().textStrokeWidth() << "]"; |
| } |
| |
| if (!is<RenderBoxModelObject>(o) || is<RenderLineBreak>(o)) |
| return; |
| |
| const RenderBoxModelObject& box = downcast<RenderBoxModelObject>(o); |
| LayoutUnit borderTop = box.borderTop(); |
| LayoutUnit borderRight = box.borderRight(); |
| LayoutUnit borderBottom = box.borderBottom(); |
| LayoutUnit borderLeft = box.borderLeft(); |
| bool overridden = o.style().borderImage().overridesBorderWidths(); |
| if (box.isFieldset()) { |
| const auto& block = downcast<RenderBlock>(box); |
| if (o.style().writingMode() == WritingMode::TopToBottom) |
| borderTop -= block.intrinsicBorderForFieldset(); |
| else if (o.style().writingMode() == WritingMode::BottomToTop) |
| borderBottom -= block.intrinsicBorderForFieldset(); |
| else if (o.style().writingMode() == WritingMode::LeftToRight) |
| borderLeft -= block.intrinsicBorderForFieldset(); |
| else if (o.style().writingMode() == WritingMode::RightToLeft) |
| borderRight -= block.intrinsicBorderForFieldset(); |
| |
| } |
| if (borderTop || borderRight || borderBottom || borderLeft) { |
| ts << " [border:"; |
| |
| BorderValue prevBorder = o.style().borderTop(); |
| if (!borderTop) |
| ts << " none"; |
| else { |
| ts << " (" << borderTop << "px "; |
| printBorderStyle(ts, o.style().borderTopStyle()); |
| auto color = o.style().borderTopColor(); |
| if (!color.isValid()) |
| color = o.style().color(); |
| ts << serializationForRenderTreeAsText(color) << ")"; |
| } |
| |
| if (o.style().borderRight() != prevBorder || (overridden && borderRight != borderTop)) { |
| prevBorder = o.style().borderRight(); |
| if (!borderRight) |
| ts << " none"; |
| else { |
| ts << " (" << borderRight << "px "; |
| printBorderStyle(ts, o.style().borderRightStyle()); |
| auto color = o.style().borderRightColor(); |
| if (!color.isValid()) |
| color = o.style().color(); |
| ts << serializationForRenderTreeAsText(color) << ")"; |
| } |
| } |
| |
| if (o.style().borderBottom() != prevBorder || (overridden && borderBottom != borderRight)) { |
| prevBorder = box.style().borderBottom(); |
| if (!borderBottom) |
| ts << " none"; |
| else { |
| ts << " (" << borderBottom << "px "; |
| printBorderStyle(ts, o.style().borderBottomStyle()); |
| auto color = o.style().borderBottomColor(); |
| if (!color.isValid()) |
| color = o.style().color(); |
| ts << serializationForRenderTreeAsText(color) << ")"; |
| } |
| } |
| |
| if (o.style().borderLeft() != prevBorder || (overridden && borderLeft != borderBottom)) { |
| prevBorder = o.style().borderLeft(); |
| if (!borderLeft) |
| ts << " none"; |
| else { |
| ts << " (" << borderLeft << "px "; |
| printBorderStyle(ts, o.style().borderLeftStyle()); |
| auto color = o.style().borderLeftColor(); |
| if (!color.isValid()) |
| color = o.style().color(); |
| ts << serializationForRenderTreeAsText(color) << ")"; |
| } |
| } |
| |
| ts << "]"; |
| } |
| |
| #if ENABLE(MATHML) |
| // We want to show any layout padding, both CSS padding and intrinsic padding, so we can't just check o.style().hasPadding(). |
| if (o.isRenderMathMLBlock() && (box.paddingTop() || box.paddingRight() || box.paddingBottom() || box.paddingLeft())) { |
| ts << " ["; |
| LayoutUnit cssTop = box.computedCSSPaddingTop(); |
| LayoutUnit cssRight = box.computedCSSPaddingRight(); |
| LayoutUnit cssBottom = box.computedCSSPaddingBottom(); |
| LayoutUnit cssLeft = box.computedCSSPaddingLeft(); |
| if (box.paddingTop() != cssTop || box.paddingRight() != cssRight || box.paddingBottom() != cssBottom || box.paddingLeft() != cssLeft) { |
| ts << "intrinsic "; |
| if (cssTop || cssRight || cssBottom || cssLeft) |
| ts << "+ CSS "; |
| } |
| ts << "padding: " << roundToInt(box.paddingTop()) << " " << roundToInt(box.paddingRight()) << " " << roundToInt(box.paddingBottom()) << " " << roundToInt(box.paddingLeft()) << "]"; |
| } |
| #endif |
| } |
| |
| if (is<RenderTableCell>(o)) { |
| const RenderTableCell& c = downcast<RenderTableCell>(o); |
| ts << " [r=" << c.rowIndex() << " c=" << c.col() << " rs=" << c.rowSpan() << " cs=" << c.colSpan() << "]"; |
| } |
| |
| if (is<RenderDetailsMarker>(o)) { |
| ts << ": "; |
| switch (downcast<RenderDetailsMarker>(o).orientation()) { |
| case RenderDetailsMarker::Left: |
| ts << "left"; |
| break; |
| case RenderDetailsMarker::Right: |
| ts << "right"; |
| break; |
| case RenderDetailsMarker::Up: |
| ts << "up"; |
| break; |
| case RenderDetailsMarker::Down: |
| ts << "down"; |
| break; |
| } |
| } |
| |
| if (is<RenderListMarker>(o)) { |
| String text = downcast<RenderListMarker>(o).textWithoutSuffix().toString(); |
| if (!text.isEmpty()) { |
| if (text.length() != 1) |
| text = quoteAndEscapeNonPrintables(text); |
| else { |
| switch (text[0]) { |
| case bullet: |
| text = "bullet"_s; |
| break; |
| case blackSquare: |
| text = "black square"_s; |
| break; |
| case whiteBullet: |
| text = "white bullet"_s; |
| break; |
| default: |
| text = quoteAndEscapeNonPrintables(text); |
| } |
| } |
| ts << ": " << text; |
| } |
| } |
| |
| writeDebugInfo(ts, o, behavior); |
| } |
| |
| void writeDebugInfo(TextStream& ts, const RenderObject& object, OptionSet<RenderAsTextFlag> behavior) |
| { |
| if (behavior.contains(RenderAsTextFlag::ShowIDAndClass)) { |
| if (auto* element = dynamicDowncast<Element>(object.node())) { |
| if (element->hasID()) |
| ts << " id=\"" << element->getIdAttribute() << "\""; |
| |
| if (element->hasClass()) { |
| ts << " class=\""; |
| for (size_t i = 0; i < element->classNames().size(); ++i) { |
| if (i > 0) |
| ts << " "; |
| ts << element->classNames()[i]; |
| } |
| ts << "\""; |
| } |
| } |
| } |
| |
| if (behavior.contains(RenderAsTextFlag::ShowLayoutState)) { |
| bool needsLayout = object.selfNeedsLayout() || object.needsPositionedMovementLayout() || object.posChildNeedsLayout() || object.normalChildNeedsLayout(); |
| if (needsLayout) |
| ts << " (needs layout:"; |
| |
| bool havePrevious = false; |
| if (object.selfNeedsLayout()) { |
| ts << " self"; |
| havePrevious = true; |
| } |
| |
| if (object.needsPositionedMovementLayout()) { |
| if (havePrevious) |
| ts << ","; |
| havePrevious = true; |
| ts << " positioned movement"; |
| } |
| |
| if (object.normalChildNeedsLayout()) { |
| if (havePrevious) |
| ts << ","; |
| havePrevious = true; |
| ts << " child"; |
| } |
| |
| if (object.posChildNeedsLayout()) { |
| if (havePrevious) |
| ts << ","; |
| ts << " positioned child"; |
| } |
| |
| if (needsLayout) |
| ts << ")"; |
| } |
| |
| if (behavior.contains(RenderAsTextFlag::ShowOverflow) && is<RenderBox>(object)) { |
| const auto& box = downcast<RenderBox>(object); |
| if (box.hasRenderOverflow()) { |
| LayoutRect layoutOverflow = box.layoutOverflowRect(); |
| ts << " (layout overflow " << layoutOverflow.x().toInt() << "," << layoutOverflow.y().toInt() << " " << layoutOverflow.width().toInt() << "x" << layoutOverflow.height().toInt() << ")"; |
| |
| if (box.hasVisualOverflow()) { |
| LayoutRect visualOverflow = box.visualOverflowRect(); |
| ts << " (visual overflow " << visualOverflow.x().toInt() << "," << visualOverflow.y().toInt() << " " << visualOverflow.width().toInt() << "x" << visualOverflow.height().toInt() << ")"; |
| } |
| } |
| } |
| } |
| |
| void write(TextStream& ts, const RenderObject& o, OptionSet<RenderAsTextFlag> behavior) |
| { |
| auto writeTextRun = [&](auto& textRenderer, auto& textRun) |
| { |
| auto rect = textRun.visualRectIgnoringBlockDirection(); |
| int x = rect.x(); |
| int y = rect.y(); |
| // FIXME: Use non-logical width. webkit.org/b/206809. |
| int logicalWidth = ceilf(rect.x() + (textRun.isHorizontal() ? rect.width() : rect.height())) - x; |
| // FIXME: Table cell adjustment is temporary until results can be updated. |
| if (is<RenderTableCell>(*o.containingBlock())) |
| y -= floorToInt(downcast<RenderTableCell>(*o.containingBlock()).intrinsicPaddingBefore()); |
| |
| ts << "text run at (" << x << "," << y << ") width " << logicalWidth; |
| if (!textRun.isLeftToRightDirection()) |
| ts << " RTL"; |
| ts << ": " |
| << quoteAndEscapeNonPrintables(textRun.text()); |
| if (textRun.hasHyphen()) |
| ts << " + hyphen string " << quoteAndEscapeNonPrintables(textRenderer.style().hyphenString().string()); |
| ts << "\n"; |
| }; |
| |
| #if ENABLE(LAYER_BASED_SVG_ENGINE) |
| if (is<RenderSVGShape>(o)) { |
| write(ts, downcast<RenderSVGShape>(o), behavior); |
| return; |
| } |
| #endif |
| if (is<LegacyRenderSVGShape>(o)) { |
| write(ts, downcast<LegacyRenderSVGShape>(o), behavior); |
| return; |
| } |
| if (is<RenderSVGGradientStop>(o)) { |
| writeSVGGradientStop(ts, downcast<RenderSVGGradientStop>(o), behavior); |
| return; |
| } |
| if (is<RenderSVGResourceContainer>(o)) { |
| writeSVGResourceContainer(ts, downcast<RenderSVGResourceContainer>(o), behavior); |
| return; |
| } |
| #if ENABLE(LAYER_BASED_SVG_ENGINE) |
| if (is<RenderSVGContainer>(o)) { |
| writeSVGContainer(ts, downcast<RenderSVGContainer>(o), behavior); |
| return; |
| } |
| #endif |
| if (is<LegacyRenderSVGContainer>(o)) { |
| writeSVGContainer(ts, downcast<LegacyRenderSVGContainer>(o), behavior); |
| return; |
| } |
| #if ENABLE(LAYER_BASED_SVG_ENGINE) |
| if (is<RenderSVGRoot>(o)) { |
| write(ts, downcast<RenderSVGRoot>(o), behavior); |
| return; |
| } |
| #endif |
| if (is<LegacyRenderSVGRoot>(o)) { |
| write(ts, downcast<LegacyRenderSVGRoot>(o), behavior); |
| return; |
| } |
| if (is<RenderSVGText>(o)) { |
| writeSVGText(ts, downcast<RenderSVGText>(o), behavior); |
| return; |
| } |
| if (is<RenderSVGInlineText>(o)) { |
| writeSVGInlineText(ts, downcast<RenderSVGInlineText>(o), behavior); |
| return; |
| } |
| if (is<RenderSVGImage>(o)) { |
| writeSVGImage(ts, downcast<RenderSVGImage>(o), behavior); |
| return; |
| } |
| |
| ts << indent; |
| |
| RenderTreeAsText::writeRenderObject(ts, o, behavior); |
| ts << "\n"; |
| |
| TextStream::IndentScope indentScope(ts); |
| |
| if (is<RenderText>(o)) { |
| auto& text = downcast<RenderText>(o); |
| for (auto& run : InlineIterator::textBoxesFor(text)) { |
| ts << indent; |
| writeTextRun(text, run); |
| } |
| } else { |
| for (auto& child : childrenOfType<RenderObject>(downcast<RenderElement>(o))) { |
| if (child.hasLayer()) |
| continue; |
| write(ts, child, behavior); |
| } |
| } |
| |
| if (is<RenderWidget>(o)) { |
| Widget* widget = downcast<RenderWidget>(o).widget(); |
| if (is<FrameView>(widget)) { |
| FrameView& view = downcast<FrameView>(*widget); |
| if (RenderView* root = view.frame().contentRenderer()) { |
| if (!(behavior.contains(RenderAsTextFlag::DontUpdateLayout))) |
| view.layoutContext().layout(); |
| if (RenderLayer* layer = root->layer()) |
| writeLayers(ts, *layer, *layer, layer->rect(), behavior); |
| } |
| } |
| } |
| } |
| |
| enum LayerPaintPhase { |
| LayerPaintPhaseAll = 0, |
| LayerPaintPhaseBackground = -1, |
| LayerPaintPhaseForeground = 1 |
| }; |
| |
| static void writeLayer(TextStream& ts, const RenderLayer& layer, const LayoutRect& layerBounds, const LayoutRect& backgroundClipRect, const LayoutRect& clipRect, |
| LayerPaintPhase paintPhase = LayerPaintPhaseAll, OptionSet<RenderAsTextFlag> behavior = { }) |
| { |
| IntRect adjustedLayoutBounds = snappedIntRect(layerBounds); |
| IntRect adjustedBackgroundClipRect = snappedIntRect(backgroundClipRect); |
| IntRect adjustedClipRect = snappedIntRect(clipRect); |
| |
| ts << indent << "layer "; |
| |
| if (behavior.contains(RenderAsTextFlag::ShowAddresses)) { |
| ts << &layer << " "; |
| if (auto* scrollableArea = layer.scrollableArea()) |
| ts << "scrollableArea " << scrollableArea << " "; |
| } |
| |
| ts << adjustedLayoutBounds; |
| |
| if (!adjustedLayoutBounds.isEmpty()) { |
| if (!adjustedBackgroundClipRect.contains(adjustedLayoutBounds)) |
| ts << " backgroundClip " << adjustedBackgroundClipRect; |
| if (!adjustedClipRect.contains(adjustedLayoutBounds)) |
| ts << " clip " << adjustedClipRect; |
| } |
| |
| if (layer.renderer().hasNonVisibleOverflow()) { |
| if (auto* scrollableArea = layer.scrollableArea()) { |
| if (scrollableArea->scrollOffset().x()) |
| ts << " scrollX " << scrollableArea->scrollOffset().x(); |
| if (scrollableArea->scrollOffset().y()) |
| ts << " scrollY " << scrollableArea->scrollOffset().y(); |
| if (layer.renderBox() && roundToInt(layer.renderBox()->clientWidth()) != scrollableArea->scrollWidth()) |
| ts << " scrollWidth " << scrollableArea->scrollWidth(); |
| if (layer.renderBox() && roundToInt(layer.renderBox()->clientHeight()) != scrollableArea->scrollHeight()) |
| ts << " scrollHeight " << scrollableArea->scrollHeight(); |
| } |
| #if PLATFORM(MAC) |
| ScrollbarTheme& scrollbarTheme = ScrollbarTheme::theme(); |
| if (!scrollbarTheme.isMockTheme() && layer.scrollableArea() && layer.scrollableArea()->hasVerticalScrollbar()) { |
| ScrollbarThemeMac& macTheme = *static_cast<ScrollbarThemeMac*>(&scrollbarTheme); |
| if (macTheme.isLayoutDirectionRTL(*layer.scrollableArea()->verticalScrollbar())) |
| ts << " scrollbarHasRTLLayoutDirection"; |
| } |
| #endif |
| } |
| |
| if (paintPhase == LayerPaintPhaseBackground) |
| ts << " layerType: background only"; |
| else if (paintPhase == LayerPaintPhaseForeground) |
| ts << " layerType: foreground only"; |
| |
| if (behavior.contains(RenderAsTextFlag::ShowCompositedLayers)) { |
| if (layer.isComposited()) { |
| ts << " (composited " << layer.compositor().reasonsForCompositing(layer) |
| << ", bounds=" << layer.backing()->compositedBounds() |
| << ", drawsContent=" << layer.backing()->graphicsLayer()->drawsContent() |
| << ", paints into ancestor=" << layer.backing()->paintsIntoCompositedAncestor() << ")"; |
| } else if (layer.paintsIntoProvidedBacking()) |
| ts << " (shared backing of " << layer.backingProviderLayer() << ")"; |
| } |
| |
| #if ENABLE(CSS_COMPOSITING) |
| if (layer.isolatesBlending()) |
| ts << " isolatesBlending"; |
| if (layer.hasBlendMode()) |
| ts << " blendMode: " << compositeOperatorName(CompositeOperator::SourceOver, layer.blendMode()); |
| #endif |
| |
| ts << "\n"; |
| } |
| |
| static void writeLayerRenderers(TextStream& ts, const RenderLayer& layer, LayerPaintPhase paintPhase, OptionSet<RenderAsTextFlag> behavior) |
| { |
| if (paintPhase != LayerPaintPhaseBackground) { |
| TextStream::IndentScope indentScope(ts); |
| write(ts, layer.renderer(), behavior); |
| } |
| } |
| |
| static LayoutSize maxLayoutOverflow(const RenderBox* box) |
| { |
| LayoutRect overflowRect = box->layoutOverflowRect(); |
| return LayoutSize(overflowRect.maxX(), overflowRect.maxY()); |
| } |
| |
| static void writeLayers(TextStream& ts, const RenderLayer& rootLayer, RenderLayer& layer, const LayoutRect& paintRect, OptionSet<RenderAsTextFlag> behavior) |
| { |
| // FIXME: Apply overflow to the root layer to not break every test. Complete hack. Sigh. |
| LayoutRect paintDirtyRect(paintRect); |
| if (&rootLayer == &layer) { |
| paintDirtyRect.setWidth(std::max<LayoutUnit>(paintDirtyRect.width(), rootLayer.renderBox()->layoutOverflowRect().maxX())); |
| paintDirtyRect.setHeight(std::max<LayoutUnit>(paintDirtyRect.height(), rootLayer.renderBox()->layoutOverflowRect().maxY())); |
| layer.setSize(layer.size().expandedTo(snappedIntSize(maxLayoutOverflow(layer.renderBox()), LayoutPoint(0, 0)))); |
| } |
| |
| // Calculate the clip rects we should use. |
| LayoutRect layerBounds; |
| ClipRect damageRect; |
| ClipRect clipRectToApply; |
| LayoutSize offsetFromRoot = layer.offsetFromAncestor(&rootLayer); |
| layer.calculateRects(RenderLayer::ClipRectsContext(&rootLayer, TemporaryClipRects), paintDirtyRect, layerBounds, damageRect, clipRectToApply, offsetFromRoot); |
| |
| // Ensure our lists are up-to-date. |
| layer.updateLayerListsIfNeeded(); |
| layer.updateDescendantDependentFlags(); |
| |
| bool shouldPaint = (behavior.contains(RenderAsTextFlag::ShowAllLayers)) ? true : layer.intersectsDamageRect(layerBounds, damageRect.rect(), &rootLayer, layer.offsetFromAncestor(&rootLayer)); |
| auto negativeZOrderLayers = layer.negativeZOrderLayers(); |
| bool paintsBackgroundSeparately = negativeZOrderLayers.size() > 0; |
| if (shouldPaint && paintsBackgroundSeparately) { |
| writeLayer(ts, layer, layerBounds, damageRect.rect(), clipRectToApply.rect(), LayerPaintPhaseBackground, behavior); |
| writeLayerRenderers(ts, layer, LayerPaintPhaseBackground, behavior); |
| } |
| |
| if (negativeZOrderLayers.size()) { |
| if (behavior.contains(RenderAsTextFlag::ShowLayerNesting)) { |
| ts << indent << " negative z-order list (" << negativeZOrderLayers.size() << ")\n"; |
| ts.increaseIndent(); |
| } |
| |
| for (auto* currLayer : negativeZOrderLayers) |
| writeLayers(ts, rootLayer, *currLayer, paintDirtyRect, behavior); |
| |
| if (behavior.contains(RenderAsTextFlag::ShowLayerNesting)) |
| ts.decreaseIndent(); |
| } |
| |
| if (shouldPaint) { |
| writeLayer(ts, layer, layerBounds, damageRect.rect(), clipRectToApply.rect(), paintsBackgroundSeparately ? LayerPaintPhaseForeground : LayerPaintPhaseAll, behavior); |
| |
| if (behavior.contains(RenderAsTextFlag::ShowLayerFragments)) { |
| LayerFragments layerFragments; |
| layer.collectFragments(layerFragments, &rootLayer, paintDirtyRect, RenderLayer::PaginationInclusionMode::ExcludeCompositedPaginatedLayers, TemporaryClipRects, IgnoreOverlayScrollbarSize, RespectOverflowClip, offsetFromRoot); |
| |
| if (layerFragments.size() > 1) { |
| TextStream::IndentScope indentScope(ts, 2); |
| for (unsigned i = 0; i < layerFragments.size(); ++i) { |
| const auto& fragment = layerFragments[i]; |
| ts << indent << " fragment " << i << ": bounds in layer " << fragment.layerBounds << " fragment bounds " << fragment.boundingBox << "\n"; |
| } |
| } |
| } |
| |
| writeLayerRenderers(ts, layer, paintsBackgroundSeparately ? LayerPaintPhaseForeground : LayerPaintPhaseAll, behavior); |
| } |
| |
| auto normalFlowLayers = layer.normalFlowLayers(); |
| if (normalFlowLayers.size()) { |
| if (behavior.contains(RenderAsTextFlag::ShowLayerNesting)) { |
| ts << indent << " normal flow list (" << normalFlowLayers.size() << ")\n"; |
| ts.increaseIndent(); |
| } |
| |
| for (auto* currLayer : normalFlowLayers) |
| writeLayers(ts, rootLayer, *currLayer, paintDirtyRect, behavior); |
| |
| if (behavior.contains(RenderAsTextFlag::ShowLayerNesting)) |
| ts.decreaseIndent(); |
| } |
| |
| auto positiveZOrderLayers = layer.positiveZOrderLayers(); |
| if (positiveZOrderLayers.size()) { |
| size_t layerCount = positiveZOrderLayers.size(); |
| |
| if (layerCount) { |
| if (behavior.contains(RenderAsTextFlag::ShowLayerNesting)) { |
| ts << indent << " positive z-order list (" << layerCount << ")\n"; |
| ts.increaseIndent(); |
| } |
| |
| for (auto* currLayer : positiveZOrderLayers) |
| writeLayers(ts, rootLayer, *currLayer, paintDirtyRect, behavior); |
| |
| if (behavior.contains(RenderAsTextFlag::ShowLayerNesting)) |
| ts.decreaseIndent(); |
| } |
| } |
| } |
| |
| static String nodePosition(Node* node) |
| { |
| StringBuilder result; |
| |
| auto* body = node->document().bodyOrFrameset(); |
| Node* parent; |
| for (Node* n = node; n; n = parent) { |
| parent = n->parentOrShadowHostNode(); |
| if (n != node) |
| result.append(" of "); |
| if (parent) { |
| if (body && n == body) { |
| // We don't care what offset body may be in the document. |
| result.append("body"); |
| break; |
| } |
| if (n->isShadowRoot()) |
| result.append('{', getTagName(n), '}'); |
| else |
| result.append("child ", n->computeNodeIndex(), " {", getTagName(n), '}'); |
| } else |
| result.append("document"); |
| } |
| |
| return result.toString(); |
| } |
| |
| static void writeSelection(TextStream& ts, const RenderBox& renderer) |
| { |
| if (!renderer.isRenderView()) |
| return; |
| |
| Frame* frame = renderer.document().frame(); |
| if (!frame) |
| return; |
| |
| VisibleSelection selection = frame->selection().selection(); |
| if (selection.isCaret()) { |
| ts << "caret: position " << selection.start().deprecatedEditingOffset() << " of " << nodePosition(selection.start().deprecatedNode()); |
| if (selection.affinity() == Affinity::Upstream) |
| ts << " (upstream affinity)"; |
| ts << "\n"; |
| } else if (selection.isRange()) |
| ts << "selection start: position " << selection.start().deprecatedEditingOffset() << " of " << nodePosition(selection.start().deprecatedNode()) << "\n" |
| << "selection end: position " << selection.end().deprecatedEditingOffset() << " of " << nodePosition(selection.end().deprecatedNode()) << "\n"; |
| } |
| |
| static String externalRepresentation(RenderBox& renderer, OptionSet<RenderAsTextFlag> behavior) |
| { |
| TextStream ts(TextStream::LineMode::MultipleLine, { TextStream::Formatting::SVGStyleRect, TextStream::Formatting::LayoutUnitsAsIntegers }); |
| if (!renderer.hasLayer()) |
| return ts.release(); |
| |
| LOG(Layout, "externalRepresentation: dumping layer tree"); |
| |
| RenderLayer& layer = *renderer.layer(); |
| writeLayers(ts, layer, layer, layer.rect(), behavior); |
| writeSelection(ts, renderer); |
| return ts.release(); |
| } |
| |
| static void updateLayoutIgnoringPendingStylesheetsIncludingSubframes(Document& document) |
| { |
| document.updateLayoutIgnorePendingStylesheets(); |
| auto* frame = document.frame(); |
| for (auto* subframe = frame; subframe; subframe = subframe->tree().traverseNext(frame)) { |
| if (auto* document = subframe->document()) |
| document->updateLayoutIgnorePendingStylesheets(); |
| } |
| } |
| |
| String externalRepresentation(Frame* frame, OptionSet<RenderAsTextFlag> behavior) |
| { |
| ASSERT(frame); |
| ASSERT(frame->document()); |
| |
| if (!(behavior.contains(RenderAsTextFlag::DontUpdateLayout))) |
| updateLayoutIgnoringPendingStylesheetsIncludingSubframes(*frame->document()); |
| |
| auto* renderer = frame->contentRenderer(); |
| if (!renderer) |
| return String(); |
| |
| PrintContext printContext(frame); |
| if (behavior.contains(RenderAsTextFlag::PrintingMode)) |
| printContext.begin(renderer->width()); |
| |
| return externalRepresentation(*renderer, behavior); |
| } |
| |
| String externalRepresentation(Element* element, OptionSet<RenderAsTextFlag> behavior) |
| { |
| ASSERT(element); |
| |
| // This function doesn't support printing mode. |
| ASSERT(!(behavior.contains(RenderAsTextFlag::PrintingMode))); |
| |
| if (!(behavior.contains(RenderAsTextFlag::DontUpdateLayout))) |
| updateLayoutIgnoringPendingStylesheetsIncludingSubframes(element->document()); |
| |
| auto* renderer = element->renderer(); |
| if (!is<RenderBox>(renderer)) |
| return String(); |
| |
| return externalRepresentation(downcast<RenderBox>(*renderer), behavior | RenderAsTextFlag::ShowAllLayers); |
| } |
| |
| static void writeCounterValuesFromChildren(TextStream& stream, const RenderElement* parent, bool& isFirstCounter) |
| { |
| if (!parent) |
| return; |
| for (auto& counter : childrenOfType<RenderCounter>(*parent)) { |
| if (!isFirstCounter) |
| stream << " "; |
| isFirstCounter = false; |
| String str(counter.text()); |
| stream << str; |
| } |
| } |
| |
| String counterValueForElement(Element* element) |
| { |
| // Make sure the element is not freed during the layout. |
| RefPtr<Element> elementRef(element); |
| element->document().updateLayout(); |
| TextStream stream(TextStream::LineMode::MultipleLine, { TextStream::Formatting::SVGStyleRect, TextStream::Formatting::LayoutUnitsAsIntegers }); |
| bool isFirstCounter = true; |
| // The counter renderers should be children of :before or :after pseudo-elements. |
| if (PseudoElement* before = element->beforePseudoElement()) |
| writeCounterValuesFromChildren(stream, before->renderer(), isFirstCounter); |
| if (PseudoElement* after = element->afterPseudoElement()) |
| writeCounterValuesFromChildren(stream, after->renderer(), isFirstCounter); |
| return stream.release(); |
| } |
| |
| String markerTextForListItem(Element* element) |
| { |
| // Make sure the element is not freed during the layout. |
| RefPtr<Element> elementRef(element); |
| element->document().updateLayout(); |
| |
| RenderElement* renderer = element->renderer(); |
| if (!is<RenderListItem>(renderer)) |
| return String(); |
| |
| return downcast<RenderListItem>(*renderer).markerTextWithoutSuffix().toString(); |
| } |
| |
| } // namespace WebCore |
