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/*
* Copyright (C) 2003, 2006, 2008 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.
*/
#ifndef LayoutTreeAsText_h
#define LayoutTreeAsText_h
#include "core/CoreExport.h"
#include "platform/text/TextStream.h"
#include "wtf/Allocator.h"
#include "wtf/Forward.h"
namespace blink {
class Color;
class PaintLayer;
class Element;
class LayoutRect;
class LocalFrame;
class LayoutBlockFlow;
class LayoutObject;
class TextStream;
enum LayoutAsTextBehaviorFlags {
LayoutAsTextBehaviorNormal = 0,
LayoutAsTextShowAllLayers =
1 << 0, // Dump all layers, not just those that would paint.
LayoutAsTextShowLayerNesting = 1 << 1, // Annotate the layer lists.
LayoutAsTextShowCompositedLayers = 1
<< 2, // Show which layers are composited.
LayoutAsTextShowAddresses = 1 << 3, // Show layer and layoutObject addresses.
LayoutAsTextShowIDAndClass = 1 << 4, // Show id and class attributes
LayoutAsTextPrintingMode = 1 << 5, // Dump the tree in printing mode.
LayoutAsTextDontUpdateLayout =
1 << 6, // Don't update layout, to make it safe to call showLayerTree()
// from the debugger inside layout or painting code.
LayoutAsTextShowLayoutState =
1 << 7, // Print the various 'needs layout' bits on layoutObjects.
LayoutAsTextShowLineTrees =
1 << 8 // Dump the line trees for each LayoutBlockFlow.
};
typedef unsigned LayoutAsTextBehavior;
// You don't need pageWidthInPixels if you don't specify
// LayoutAsTextInPrintingMode.
CORE_EXPORT String
externalRepresentation(LocalFrame*,
LayoutAsTextBehavior = LayoutAsTextBehaviorNormal,
const PaintLayer* markedLayer = nullptr);
CORE_EXPORT String
externalRepresentation(Element*,
LayoutAsTextBehavior = LayoutAsTextBehaviorNormal);
void write(TextStream&,
const LayoutObject&,
int indent = 0,
LayoutAsTextBehavior = LayoutAsTextBehaviorNormal);
class LayoutTreeAsText {
STATIC_ONLY(LayoutTreeAsText);
// FIXME: This is a cheesy hack to allow easy access to ComputedStyle colors.
// It won't be needed if we convert it to use visitedDependentColor instead.
// (This just involves rebaselining many results though, so for now it's
// not being done).
public:
static void writeLayoutObject(TextStream&,
const LayoutObject&,
LayoutAsTextBehavior);
static void writeLayers(TextStream&,
const PaintLayer* rootLayer,
PaintLayer*,
const LayoutRect& paintDirtyRect,
int indent = 0,
LayoutAsTextBehavior = LayoutAsTextBehaviorNormal,
const PaintLayer* markedLayer = nullptr);
static void writeLineBoxTree(TextStream&,
const LayoutBlockFlow&,
int indent = 0);
};
// Helper function shared with SVGLayoutTreeAsText
String quoteAndEscapeNonPrintables(const String&);
CORE_EXPORT String counterValueForElement(Element*);
CORE_EXPORT String markerTextForListItem(Element*);
TextStream& operator<<(TextStream&, const Color&);
} // namespace blink
#endif // LayoutTreeAsText_h
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