| /* |
| * Copyright (C) 2004, 2006, 2007 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 COMPUTER, 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 COMPUTER, 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 "CharacterNames.h" |
| #include "Document.h" |
| #include "Frame.h" |
| #include "FrameView.h" |
| #include "HTMLElement.h" |
| #include "HTMLNames.h" |
| #include "InlineTextBox.h" |
| #include "JSEditor.h" |
| #include "RenderBR.h" |
| #include "RenderListMarker.h" |
| #include "RenderTableCell.h" |
| #include "RenderView.h" |
| #include "RenderWidget.h" |
| #include "SelectionController.h" |
| #include <wtf/Vector.h> |
| |
| #if ENABLE(SVG) |
| #include "RenderSVGContainer.h" |
| #include "SVGRenderTreeAsText.h" |
| #endif |
| |
| namespace WebCore { |
| |
| using namespace HTMLNames; |
| |
| static void writeLayers(TextStream&, const RenderLayer* rootLayer, RenderLayer*, const IntRect& paintDirtyRect, int indent = 0); |
| |
| #if !ENABLE(SVG) |
| static TextStream &operator<<(TextStream& ts, const IntRect& r) |
| { |
| return ts << "at (" << r.x() << "," << r.y() << ") size " << r.width() << "x" << r.height(); |
| } |
| #endif |
| |
| static void writeIndent(TextStream& ts, int indent) |
| { |
| for (int i = 0; i != indent; ++i) |
| ts << " "; |
| } |
| |
| static void printBorderStyle(TextStream& ts, const RenderObject& o, const EBorderStyle borderStyle) |
| { |
| switch (borderStyle) { |
| case BNONE: |
| ts << "none"; |
| break; |
| case BHIDDEN: |
| ts << "hidden"; |
| break; |
| case INSET: |
| ts << "inset"; |
| break; |
| case GROOVE: |
| ts << "groove"; |
| break; |
| case RIDGE: |
| ts << "ridge"; |
| break; |
| case OUTSET: |
| ts << "outset"; |
| break; |
| case DOTTED: |
| ts << "dotted"; |
| break; |
| case DASHED: |
| ts << "dashed"; |
| break; |
| case SOLID: |
| ts << "solid"; |
| break; |
| case DOUBLE: |
| ts << "double"; |
| break; |
| } |
| |
| ts << " "; |
| } |
| |
| static String getTagName(Node* n) |
| { |
| if (n->isDocumentNode()) |
| return ""; |
| if (n->isCommentNode()) |
| return "COMMENT"; |
| return n->nodeName(); |
| } |
| |
| static bool isEmptyOrUnstyledAppleStyleSpan(const Node* node) |
| { |
| if (!node || !node->isHTMLElement() || !node->hasTagName(spanTag)) |
| return false; |
| |
| const HTMLElement* elem = static_cast<const HTMLElement*>(node); |
| if (elem->getAttribute(classAttr) != "Apple-style-span") |
| return false; |
| |
| if (!node->hasChildNodes()) |
| return true; |
| |
| CSSMutableStyleDeclaration* inlineStyleDecl = elem->inlineStyleDecl(); |
| return (!inlineStyleDecl || inlineStyleDecl->length() == 0); |
| } |
| |
| static String quoteAndEscapeNonPrintables(const String& s) |
| { |
| Vector<UChar> result; |
| result.append('"'); |
| for (unsigned i = 0; i != s.length(); ++i) { |
| UChar c = s[i]; |
| if (c == '\\') { |
| result.append('\\'); |
| result.append('\\'); |
| } else if (c == '"') { |
| result.append('\\'); |
| result.append('"'); |
| } else if (c == '\n' || c == noBreakSpace) |
| result.append(' '); |
| else { |
| if (c >= 0x20 && c < 0x7F) |
| result.append(c); |
| else { |
| unsigned u = c; |
| String hex = String::format("\\x{%X}", u); |
| unsigned len = hex.length(); |
| for (unsigned i = 0; i < len; ++i) |
| result.append(hex[i]); |
| } |
| } |
| } |
| result.append('"'); |
| return String::adopt(result); |
| } |
| |
| static TextStream &operator<<(TextStream& ts, const RenderObject& o) |
| { |
| ts << o.renderName(); |
| |
| if (o.style() && o.style()->zIndex()) |
| ts << " zI: " << o.style()->zIndex(); |
| |
| if (o.element()) { |
| String tagName = getTagName(o.element()); |
| if (!tagName.isEmpty()) { |
| ts << " {" << tagName << "}"; |
| // flag empty or unstyled AppleStyleSpan because we never |
| // want to leave them in the DOM |
| if (isEmptyOrUnstyledAppleStyleSpan(o.element())) |
| ts << " *empty or unstyled AppleStyleSpan*"; |
| } |
| } |
| |
| IntRect r(o.xPos(), o.yPos(), o.width(), o.height()); |
| ts << " " << r; |
| |
| if (!(o.isText() && !o.isBR())) { |
| if (o.parent() && (o.parent()->style()->color() != o.style()->color())) |
| ts << " [color=" << o.style()->color().name() << "]"; |
| |
| if (o.parent() && (o.parent()->style()->backgroundColor() != o.style()->backgroundColor()) && |
| o.style()->backgroundColor().isValid() && o.style()->backgroundColor().rgb()) |
| // Do not dump invalid or transparent backgrounds, since that is the default. |
| ts << " [bgcolor=" << o.style()->backgroundColor().name() << "]"; |
| |
| if (o.parent() && (o.parent()->style()->textFillColor() != o.style()->textFillColor()) && |
| o.style()->textFillColor().isValid() && o.style()->textFillColor() != o.style()->color() && |
| o.style()->textFillColor().rgb()) |
| ts << " [textFillColor=" << o.style()->textFillColor().name() << "]"; |
| |
| if (o.parent() && (o.parent()->style()->textStrokeColor() != o.style()->textStrokeColor()) && |
| o.style()->textStrokeColor().isValid() && o.style()->textStrokeColor() != o.style()->color() && |
| o.style()->textStrokeColor().rgb()) |
| ts << " [textStrokeColor=" << o.style()->textStrokeColor().name() << "]"; |
| |
| if (o.parent() && (o.parent()->style()->textStrokeWidth() != o.style()->textStrokeWidth()) && |
| o.style()->textStrokeWidth() > 0) |
| ts << " [textStrokeWidth=" << o.style()->textStrokeWidth() << "]"; |
| |
| if (o.borderTop() || o.borderRight() || o.borderBottom() || o.borderLeft()) { |
| ts << " [border:"; |
| |
| BorderValue prevBorder; |
| if (o.style()->borderTop() != prevBorder) { |
| prevBorder = o.style()->borderTop(); |
| if (!o.borderTop()) |
| ts << " none"; |
| else { |
| ts << " (" << o.borderTop() << "px "; |
| printBorderStyle(ts, o, o.style()->borderTopStyle()); |
| Color col = o.style()->borderTopColor(); |
| if (!col.isValid()) |
| col = o.style()->color(); |
| ts << col.name() << ")"; |
| } |
| } |
| |
| if (o.style()->borderRight() != prevBorder) { |
| prevBorder = o.style()->borderRight(); |
| if (!o.borderRight()) |
| ts << " none"; |
| else { |
| ts << " (" << o.borderRight() << "px "; |
| printBorderStyle(ts, o, o.style()->borderRightStyle()); |
| Color col = o.style()->borderRightColor(); |
| if (!col.isValid()) |
| col = o.style()->color(); |
| ts << col.name() << ")"; |
| } |
| } |
| |
| if (o.style()->borderBottom() != prevBorder) { |
| prevBorder = o.style()->borderBottom(); |
| if (!o.borderBottom()) |
| ts << " none"; |
| else { |
| ts << " (" << o.borderBottom() << "px "; |
| printBorderStyle(ts, o, o.style()->borderBottomStyle()); |
| Color col = o.style()->borderBottomColor(); |
| if (!col.isValid()) |
| col = o.style()->color(); |
| ts << col.name() << ")"; |
| } |
| } |
| |
| if (o.style()->borderLeft() != prevBorder) { |
| prevBorder = o.style()->borderLeft(); |
| if (!o.borderLeft()) |
| ts << " none"; |
| else { |
| ts << " (" << o.borderLeft() << "px "; |
| printBorderStyle(ts, o, o.style()->borderLeftStyle()); |
| Color col = o.style()->borderLeftColor(); |
| if (!col.isValid()) |
| col = o.style()->color(); |
| ts << col.name() << ")"; |
| } |
| } |
| |
| ts << "]"; |
| } |
| } |
| |
| if (o.isTableCell()) { |
| const RenderTableCell& c = static_cast<const RenderTableCell&>(o); |
| ts << " [r=" << c.row() << " c=" << c.col() << " rs=" << c.rowSpan() << " cs=" << c.colSpan() << "]"; |
| } |
| |
| if (o.isListMarker()) { |
| String text = static_cast<const RenderListMarker&>(o).text(); |
| if (!text.isEmpty()) { |
| if (text.length() != 1) |
| text = quoteAndEscapeNonPrintables(text); |
| else { |
| switch (text[0]) { |
| case bullet: |
| text = "bullet"; |
| break; |
| case blackSquare: |
| text = "black square"; |
| break; |
| case whiteBullet: |
| text = "white bullet"; |
| break; |
| default: |
| text = quoteAndEscapeNonPrintables(text); |
| } |
| } |
| ts << ": " << text; |
| } |
| } |
| |
| return ts; |
| } |
| |
| static void writeTextRun(TextStream& ts, const RenderText& o, const InlineTextBox& run) |
| { |
| ts << "text run at (" << run.m_x << "," << run.m_y << ") width " << run.m_width; |
| if (run.m_reversed || run.m_dirOverride) { |
| ts << (run.m_reversed ? " RTL" : " LTR"); |
| if (run.m_dirOverride) |
| ts << " override"; |
| } |
| ts << ": " |
| << quoteAndEscapeNonPrintables(String(o.text()).substring(run.m_start, run.m_len)) |
| << "\n"; |
| } |
| |
| void write(TextStream& ts, const RenderObject& o, int indent) |
| { |
| #if ENABLE(SVG) |
| if (o.isRenderPath()) { |
| write(ts, static_cast<const RenderPath&>(o), indent); |
| return; |
| } |
| if (o.isSVGContainer()) { |
| write(ts, static_cast<const RenderSVGContainer&>(o), indent); |
| return; |
| } |
| #endif |
| |
| writeIndent(ts, indent); |
| |
| ts << o << "\n"; |
| |
| if (o.isText() && !o.isBR()) { |
| const RenderText& text = static_cast<const RenderText&>(o); |
| for (InlineTextBox* box = text.firstTextBox(); box; box = box->nextTextBox()) { |
| writeIndent(ts, indent + 1); |
| writeTextRun(ts, text, *box); |
| } |
| } |
| |
| for (RenderObject* child = o.firstChild(); child; child = child->nextSibling()) { |
| if (child->hasLayer()) |
| continue; |
| write(ts, *child, indent + 1); |
| } |
| |
| if (o.isWidget()) { |
| Widget* widget = static_cast<const RenderWidget&>(o).widget(); |
| if (widget && widget->isFrameView()) { |
| FrameView* view = static_cast<FrameView*>(widget); |
| RenderObject* root = view->frame()->renderer(); |
| if (root) { |
| view->layout(); |
| RenderLayer* l = root->layer(); |
| if (l) |
| writeLayers(ts, l, l, IntRect(l->xPos(), l->yPos(), l->width(), l->height()), indent + 1); |
| } |
| } |
| } |
| } |
| |
| static void write(TextStream& ts, RenderLayer& l, |
| const IntRect& layerBounds, const IntRect& backgroundClipRect, const IntRect& clipRect, const IntRect& outlineClipRect, |
| int layerType = 0, int indent = 0) |
| { |
| writeIndent(ts, indent); |
| |
| ts << "layer " << layerBounds; |
| |
| if (!layerBounds.isEmpty()) { |
| if (!backgroundClipRect.contains(layerBounds)) |
| ts << " backgroundClip " << backgroundClipRect; |
| if (!clipRect.contains(layerBounds)) |
| ts << " clip " << clipRect; |
| if (!outlineClipRect.contains(layerBounds)) |
| ts << " outlineClip " << outlineClipRect; |
| } |
| |
| if (l.renderer()->hasOverflowClip()) { |
| if (l.scrollXOffset()) |
| ts << " scrollX " << l.scrollXOffset(); |
| if (l.scrollYOffset()) |
| ts << " scrollY " << l.scrollYOffset(); |
| if (l.renderer()->clientWidth() != l.scrollWidth()) |
| ts << " scrollWidth " << l.scrollWidth(); |
| if (l.renderer()->clientHeight() != l.scrollHeight()) |
| ts << " scrollHeight " << l.scrollHeight(); |
| } |
| |
| if (layerType == -1) |
| ts << " layerType: background only"; |
| else if (layerType == 1) |
| ts << " layerType: foreground only"; |
| |
| ts << "\n"; |
| |
| if (layerType != -1) |
| write(ts, *l.renderer(), indent + 1); |
| } |
| |
| static void writeLayers(TextStream& ts, const RenderLayer* rootLayer, RenderLayer* l, |
| const IntRect& paintDirtyRect, int indent) |
| { |
| // Calculate the clip rects we should use. |
| IntRect layerBounds, damageRect, clipRectToApply, outlineRect; |
| l->calculateRects(rootLayer, paintDirtyRect, layerBounds, damageRect, clipRectToApply, outlineRect); |
| |
| // Ensure our lists are up-to-date. |
| l->updateZOrderLists(); |
| l->updateOverflowList(); |
| |
| bool shouldPaint = l->intersectsDamageRect(layerBounds, damageRect); |
| Vector<RenderLayer*>* negList = l->negZOrderList(); |
| if (shouldPaint && negList && negList->size() > 0) |
| write(ts, *l, layerBounds, damageRect, clipRectToApply, outlineRect, -1, indent); |
| |
| if (negList) { |
| for (unsigned i = 0; i != negList->size(); ++i) |
| writeLayers(ts, rootLayer, negList->at(i), paintDirtyRect, indent); |
| } |
| |
| if (shouldPaint) |
| write(ts, *l, layerBounds, damageRect, clipRectToApply, outlineRect, negList && negList->size() > 0, indent); |
| |
| Vector<RenderLayer*>* overflowList = l->overflowList(); |
| if (overflowList) { |
| for (unsigned i = 0; i != overflowList->size(); ++i) |
| writeLayers(ts, rootLayer, overflowList->at(i), paintDirtyRect, indent); |
| } |
| |
| Vector<RenderLayer*>* posList = l->posZOrderList(); |
| if (posList) { |
| for (unsigned i = 0; i != posList->size(); ++i) |
| writeLayers(ts, rootLayer, posList->at(i), paintDirtyRect, indent); |
| } |
| } |
| |
| static String nodePosition(Node* node) |
| { |
| String result; |
| |
| Node* parent; |
| for (Node* n = node; n; n = parent) { |
| parent = n->parentNode(); |
| if (!parent) |
| parent = n->shadowParentNode(); |
| if (n != node) |
| result += " of "; |
| if (parent) |
| result += "child " + String::number(n->nodeIndex()) + " {" + getTagName(n) + "}"; |
| else |
| result += "document"; |
| } |
| |
| return result; |
| } |
| |
| static void writeSelection(TextStream& ts, const RenderObject* o) |
| { |
| Node* n = o->element(); |
| if (!n || !n->isDocumentNode()) |
| return; |
| |
| Document* doc = static_cast<Document*>(n); |
| Frame* frame = doc->frame(); |
| if (!frame) |
| return; |
| |
| Selection selection = frame->selectionController()->selection(); |
| if (selection.isCaret()) { |
| ts << "caret: position " << selection.start().offset() << " of " << nodePosition(selection.start().node()); |
| if (selection.affinity() == UPSTREAM) |
| ts << " (upstream affinity)"; |
| ts << "\n"; |
| } else if (selection.isRange()) |
| ts << "selection start: position " << selection.start().offset() << " of " << nodePosition(selection.start().node()) << "\n" |
| << "selection end: position " << selection.end().offset() << " of " << nodePosition(selection.end().node()) << "\n"; |
| } |
| |
| DeprecatedString externalRepresentation(RenderObject* o) |
| { |
| DeprecatedString s; |
| if (o) { |
| TextStream ts(&s); |
| ts.precision(2); |
| #if ENABLE(SVG) |
| writeRenderResources(ts, o->document()); |
| #endif |
| if (o->view()->frameView()) |
| o->view()->frameView()->layout(); |
| RenderLayer* l = o->layer(); |
| if (l) { |
| writeLayers(ts, l, l, IntRect(l->xPos(), l->yPos(), l->width(), l->height())); |
| writeSelection(ts, o); |
| } |
| } |
| return s; |
| } |
| |
| } // namespace WebCore |
