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* Copyright 2006 The Android Open Source Project
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
#include "include/core/SkScalar.h"
#include "include/core/SkTypes.h"
#include "include/private/SkNoncopyable.h"
#include "include/private/SkTemplates.h"
#include "src/core/SkArenaAlloc.h"
struct SkDOMNode;
struct SkDOMAttr;
class SkDOMParser;
class SkStream;
class SkXMLParser;
class SkDOM : public SkNoncopyable {
typedef SkDOMNode Node;
typedef SkDOMAttr Attr;
/** Returns null on failure
const Node* build(SkStream&);
const Node* copy(const SkDOM& dom, const Node* node);
const Node* getRootNode() const;
SkXMLParser* beginParsing();
const Node* finishParsing();
enum Type {
Type getType(const Node*) const;
const char* getName(const Node*) const;
const Node* getFirstChild(const Node*, const char elem[] = nullptr) const;
const Node* getNextSibling(const Node*, const char elem[] = nullptr) const;
const char* findAttr(const Node*, const char attrName[]) const;
const Attr* getFirstAttr(const Node*) const;
const Attr* getNextAttr(const Node*, const Attr*) const;
const char* getAttrName(const Node*, const Attr*) const;
const char* getAttrValue(const Node*, const Attr*) const;
// helpers for walking children
int countChildren(const Node* node, const char elem[] = nullptr) const;
// helpers for calling SkParse
bool findS32(const Node*, const char name[], int32_t* value) const;
bool findScalars(const Node*, const char name[], SkScalar value[], int count) const;
bool findHex(const Node*, const char name[], uint32_t* value) const;
bool findBool(const Node*, const char name[], bool*) const;
int findList(const Node*, const char name[], const char list[]) const;
bool findScalar(const Node* node, const char name[], SkScalar value[]) const {
return this->findScalars(node, name, value, 1);
bool hasAttr(const Node*, const char name[], const char value[]) const;
bool hasS32(const Node*, const char name[], int32_t value) const;
bool hasScalar(const Node*, const char name[], SkScalar value) const;
bool hasHex(const Node*, const char name[], uint32_t value) const;
bool hasBool(const Node*, const char name[], bool value) const;
class AttrIter {
AttrIter(const SkDOM&, const Node*);
const char* next(const char** value);
const Attr* fAttr;
const Attr* fStop;
SkArenaAllocWithReset fAlloc;
Node* fRoot;
std::unique_ptr<SkDOMParser> fParser;
using INHERITED = SkNoncopyable;