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#ifndef QTEXTHTMLPARSER_P_H
#define QTEXTHTMLPARSER_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include "QtCore/qvector.h"
#include "QtGui/qbrush.h"
#include "QtGui/qcolor.h"
#include "QtGui/qfont.h"
#include "QtGui/qtextdocument.h"
#include "QtGui/qtextcursor.h"
#include "private/qtextformat_p.h"
#include "private/qtextdocument_p.h"
#include "private/qcssparser_p.h"
#ifndef QT_NO_TEXTHTMLPARSER
QT_BEGIN_NAMESPACE
enum QTextHTMLElements {
Html_unknown = -1,
Html_qt = 0,
Html_body,
Html_a,
Html_em,
Html_i,
Html_big,
Html_small,
Html_strong,
Html_b,
Html_cite,
Html_address,
Html_var,
Html_dfn,
Html_h1,
Html_h2,
Html_h3,
Html_h4,
Html_h5,
Html_h6,
Html_p,
Html_center,
Html_font,
Html_ul,
Html_ol,
Html_li,
Html_code,
Html_tt,
Html_kbd,
Html_samp,
Html_img,
Html_br,
Html_hr,
Html_sub,
Html_sup,
Html_pre,
Html_blockquote,
Html_head,
Html_div,
Html_span,
Html_dl,
Html_dt,
Html_dd,
Html_u,
Html_s,
Html_nobr,
// tables
Html_table,
Html_tr,
Html_td,
Html_th,
Html_thead,
Html_tbody,
Html_tfoot,
Html_caption,
// misc...
Html_html,
Html_style,
Html_title,
Html_meta,
Html_link,
Html_script,
Html_NumElements
};
struct QTextHtmlElement
{
const char *name;
QTextHTMLElements id;
enum DisplayMode { DisplayBlock, DisplayInline, DisplayTable, DisplayNone } displayMode;
};
class QTextHtmlParser;
struct QTextHtmlParserNode {
enum WhiteSpaceMode {
WhiteSpaceNormal,
WhiteSpacePre,
WhiteSpaceNoWrap,
WhiteSpacePreWrap,
WhiteSpaceModeUndefined = -1
};
QTextHtmlParserNode();
QString tag;
QString text;
QStringList attributes;
int parent;
QVector<int> children;
QTextHTMLElements id;
QTextCharFormat charFormat;
QTextBlockFormat blockFormat;
uint cssFloat : 2;
uint hasOwnListStyle : 1;
uint hasCssListIndent : 1;
uint isEmptyParagraph : 1;
uint isTextFrame : 1;
uint isRootFrame : 1;
uint displayMode : 3; // QTextHtmlElement::DisplayMode
uint hasHref : 1;
QTextListFormat::Style listStyle;
QString imageName;
qreal imageWidth;
qreal imageHeight;
QTextLength width;
QTextLength height;
qreal tableBorder;
int tableCellRowSpan;
int tableCellColSpan;
qreal tableCellSpacing;
qreal tableCellPadding;
QBrush borderBrush;
QTextFrameFormat::BorderStyle borderStyle;
int userState;
int cssListIndent;
WhiteSpaceMode wsm;
inline bool isListStart() const
{ return id == Html_ol || id == Html_ul; }
inline bool isTableCell() const
{ return id == Html_td || id == Html_th; }
inline bool isBlock() const
{ return displayMode == QTextHtmlElement::DisplayBlock; }
inline bool isNotSelfNesting() const
{ return id == Html_p || id == Html_li; }
inline bool allowedInContext(int parentId) const
{
switch (id) {
case Html_dd:
case Html_dt: return (parentId == Html_dl);
case Html_tr: return (parentId == Html_table
|| parentId == Html_thead
|| parentId == Html_tbody
|| parentId == Html_tfoot
);
case Html_th:
case Html_td: return (parentId == Html_tr);
case Html_thead:
case Html_tbody:
case Html_tfoot: return (parentId == Html_table);
case Html_caption: return (parentId == Html_table);
case Html_body: return parentId != Html_head;
default: break;
}
return true;
}
inline bool mayNotHaveChildren() const
{ return id == Html_img || id == Html_hr || id == Html_br || id == Html_meta; }
void initializeProperties(const QTextHtmlParserNode *parent, const QTextHtmlParser *parser);
inline int uncollapsedMargin(int mar) const { return margin[mar]; }
bool isNestedList(const QTextHtmlParser *parser) const;
void parseStyleAttribute(const QString &value, const QTextDocument *resourceProvider);
#ifndef QT_NO_CSSPARSER
void applyCssDeclarations(const QVector<QCss::Declaration> &declarations, const QTextDocument *resourceProvider);
void setListStyle(const QVector<QCss::Value> &cssValues);
#endif
void applyBackgroundImage(const QString &url, const QTextDocument *resourceProvider);
bool hasOnlyWhitespace() const;
int margin[4];
int padding[4];
friend class QTextHtmlParser;
};
Q_DECLARE_TYPEINFO(QTextHtmlParserNode, Q_MOVABLE_TYPE);
class QTextHtmlParser
{
public:
enum Margin {
MarginTop,
MarginRight,
MarginBottom,
MarginLeft
};
inline const QTextHtmlParserNode &at(int i) const { return nodes.at(i); }
inline QTextHtmlParserNode &operator[](int i) { return nodes[i]; }
inline int count() const { return nodes.count(); }
inline int last() const { return nodes.count()-1; }
int depth(int i) const;
int topMargin(int i) const;
int bottomMargin(int i) const;
inline int leftMargin(int i) const { return margin(i, MarginLeft); }
inline int rightMargin(int i) const { return margin(i, MarginRight); }
inline int topPadding(int i) const { return at(i).padding[MarginTop]; }
inline int bottomPadding(int i) const { return at(i).padding[MarginBottom]; }
inline int leftPadding(int i) const { return at(i).padding[MarginLeft]; }
inline int rightPadding(int i) const { return at(i).padding[MarginRight]; }
void dumpHtml();
void parse(const QString &text, const QTextDocument *resourceProvider);
static int lookupElement(const QString &element);
protected:
QTextHtmlParserNode *newNode(int parent);
QVector<QTextHtmlParserNode> nodes;
QString txt;
int pos, len;
bool textEditMode;
void parse();
void parseTag();
void parseCloseTag();
void parseExclamationTag();
QString parseEntity();
QString parseWord();
QTextHtmlParserNode *resolveParent();
void resolveNode();
QStringList parseAttributes();
void applyAttributes(const QStringList &attributes);
void eatSpace();
inline bool hasPrefix(QChar c, int lookahead = 0) const
{return pos + lookahead < len && txt.at(pos) == c; }
int margin(int i, int mar) const;
bool nodeIsChildOf(int i, QTextHTMLElements id) const;
#ifndef QT_NO_CSSPARSER
QVector<QCss::Declaration> declarationsForNode(int node) const;
void resolveStyleSheetImports(const QCss::StyleSheet &sheet);
void importStyleSheet(const QString &href);
struct ExternalStyleSheet
{
inline ExternalStyleSheet() {}
inline ExternalStyleSheet(const QString &_url, const QCss::StyleSheet &_sheet)
: url(_url), sheet(_sheet) {}
QString url;
QCss::StyleSheet sheet;
};
QVector<ExternalStyleSheet> externalStyleSheets;
QVector<QCss::StyleSheet> inlineStyleSheets;
#endif
const QTextDocument *resourceProvider;
};
QT_END_NAMESPACE
#endif // QT_NO_TEXTHTMLPARSER
#endif // QTEXTHTMLPARSER_P_H