--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/gui/text/qtexthtmlparser.cpp Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,1886 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qtexthtmlparser_p.h"
+
+#include <qbytearray.h>
+#include <qtextcodec.h>
+#include <qapplication.h>
+#include <qstack.h>
+#include <qdebug.h>
+#include <qthread.h>
+
+#include "qtextdocument.h"
+#include "qtextformat_p.h"
+#include "qtextdocument_p.h"
+#include "qtextcursor.h"
+#include "qfont_p.h"
+#include "private/qunicodetables_p.h"
+#include "private/qfunctions_p.h"
+
+#ifndef QT_NO_TEXTHTMLPARSER
+
+QT_BEGIN_NAMESPACE
+
+// see also tst_qtextdocumentfragment.cpp
+#define MAX_ENTITY 258
+static const struct QTextHtmlEntity { const char *name; quint16 code; } entities[MAX_ENTITY]= {
+ { "AElig", 0x00c6 },
+ { "AMP", 38 },
+ { "Aacute", 0x00c1 },
+ { "Acirc", 0x00c2 },
+ { "Agrave", 0x00c0 },
+ { "Alpha", 0x0391 },
+ { "Aring", 0x00c5 },
+ { "Atilde", 0x00c3 },
+ { "Auml", 0x00c4 },
+ { "Beta", 0x0392 },
+ { "Ccedil", 0x00c7 },
+ { "Chi", 0x03a7 },
+ { "Dagger", 0x2021 },
+ { "Delta", 0x0394 },
+ { "ETH", 0x00d0 },
+ { "Eacute", 0x00c9 },
+ { "Ecirc", 0x00ca },
+ { "Egrave", 0x00c8 },
+ { "Epsilon", 0x0395 },
+ { "Eta", 0x0397 },
+ { "Euml", 0x00cb },
+ { "GT", 62 },
+ { "Gamma", 0x0393 },
+ { "Iacute", 0x00cd },
+ { "Icirc", 0x00ce },
+ { "Igrave", 0x00cc },
+ { "Iota", 0x0399 },
+ { "Iuml", 0x00cf },
+ { "Kappa", 0x039a },
+ { "LT", 60 },
+ { "Lambda", 0x039b },
+ { "Mu", 0x039c },
+ { "Ntilde", 0x00d1 },
+ { "Nu", 0x039d },
+ { "OElig", 0x0152 },
+ { "Oacute", 0x00d3 },
+ { "Ocirc", 0x00d4 },
+ { "Ograve", 0x00d2 },
+ { "Omega", 0x03a9 },
+ { "Omicron", 0x039f },
+ { "Oslash", 0x00d8 },
+ { "Otilde", 0x00d5 },
+ { "Ouml", 0x00d6 },
+ { "Phi", 0x03a6 },
+ { "Pi", 0x03a0 },
+ { "Prime", 0x2033 },
+ { "Psi", 0x03a8 },
+ { "QUOT", 34 },
+ { "Rho", 0x03a1 },
+ { "Scaron", 0x0160 },
+ { "Sigma", 0x03a3 },
+ { "THORN", 0x00de },
+ { "Tau", 0x03a4 },
+ { "Theta", 0x0398 },
+ { "Uacute", 0x00da },
+ { "Ucirc", 0x00db },
+ { "Ugrave", 0x00d9 },
+ { "Upsilon", 0x03a5 },
+ { "Uuml", 0x00dc },
+ { "Xi", 0x039e },
+ { "Yacute", 0x00dd },
+ { "Yuml", 0x0178 },
+ { "Zeta", 0x0396 },
+ { "aacute", 0x00e1 },
+ { "acirc", 0x00e2 },
+ { "acute", 0x00b4 },
+ { "aelig", 0x00e6 },
+ { "agrave", 0x00e0 },
+ { "alefsym", 0x2135 },
+ { "alpha", 0x03b1 },
+ { "amp", 38 },
+ { "and", 0x22a5 },
+ { "ang", 0x2220 },
+ { "apos", 0x0027 },
+ { "aring", 0x00e5 },
+ { "asymp", 0x2248 },
+ { "atilde", 0x00e3 },
+ { "auml", 0x00e4 },
+ { "bdquo", 0x201e },
+ { "beta", 0x03b2 },
+ { "brvbar", 0x00a6 },
+ { "bull", 0x2022 },
+ { "cap", 0x2229 },
+ { "ccedil", 0x00e7 },
+ { "cedil", 0x00b8 },
+ { "cent", 0x00a2 },
+ { "chi", 0x03c7 },
+ { "circ", 0x02c6 },
+ { "clubs", 0x2663 },
+ { "cong", 0x2245 },
+ { "copy", 0x00a9 },
+ { "crarr", 0x21b5 },
+ { "cup", 0x222a },
+ { "curren", 0x00a4 },
+ { "dArr", 0x21d3 },
+ { "dagger", 0x2020 },
+ { "darr", 0x2193 },
+ { "deg", 0x00b0 },
+ { "delta", 0x03b4 },
+ { "diams", 0x2666 },
+ { "divide", 0x00f7 },
+ { "eacute", 0x00e9 },
+ { "ecirc", 0x00ea },
+ { "egrave", 0x00e8 },
+ { "empty", 0x2205 },
+ { "emsp", 0x2003 },
+ { "ensp", 0x2002 },
+ { "epsilon", 0x03b5 },
+ { "equiv", 0x2261 },
+ { "eta", 0x03b7 },
+ { "eth", 0x00f0 },
+ { "euml", 0x00eb },
+ { "euro", 0x20ac },
+ { "exist", 0x2203 },
+ { "fnof", 0x0192 },
+ { "forall", 0x2200 },
+ { "frac12", 0x00bd },
+ { "frac14", 0x00bc },
+ { "frac34", 0x00be },
+ { "frasl", 0x2044 },
+ { "gamma", 0x03b3 },
+ { "ge", 0x2265 },
+ { "gt", 62 },
+ { "hArr", 0x21d4 },
+ { "harr", 0x2194 },
+ { "hearts", 0x2665 },
+ { "hellip", 0x2026 },
+ { "iacute", 0x00ed },
+ { "icirc", 0x00ee },
+ { "iexcl", 0x00a1 },
+ { "igrave", 0x00ec },
+ { "image", 0x2111 },
+ { "infin", 0x221e },
+ { "int", 0x222b },
+ { "iota", 0x03b9 },
+ { "iquest", 0x00bf },
+ { "isin", 0x2208 },
+ { "iuml", 0x00ef },
+ { "kappa", 0x03ba },
+ { "lArr", 0x21d0 },
+ { "lambda", 0x03bb },
+ { "lang", 0x2329 },
+ { "laquo", 0x00ab },
+ { "larr", 0x2190 },
+ { "lceil", 0x2308 },
+ { "ldquo", 0x201c },
+ { "le", 0x2264 },
+ { "lfloor", 0x230a },
+ { "lowast", 0x2217 },
+ { "loz", 0x25ca },
+ { "lrm", 0x200e },
+ { "lsaquo", 0x2039 },
+ { "lsquo", 0x2018 },
+ { "lt", 60 },
+ { "macr", 0x00af },
+ { "mdash", 0x2014 },
+ { "micro", 0x00b5 },
+ { "middot", 0x00b7 },
+ { "minus", 0x2212 },
+ { "mu", 0x03bc },
+ { "nabla", 0x2207 },
+ { "nbsp", 0x00a0 },
+ { "ndash", 0x2013 },
+ { "ne", 0x2260 },
+ { "ni", 0x220b },
+ { "not", 0x00ac },
+ { "notin", 0x2209 },
+ { "nsub", 0x2284 },
+ { "ntilde", 0x00f1 },
+ { "nu", 0x03bd },
+ { "oacute", 0x00f3 },
+ { "ocirc", 0x00f4 },
+ { "oelig", 0x0153 },
+ { "ograve", 0x00f2 },
+ { "oline", 0x203e },
+ { "omega", 0x03c9 },
+ { "omicron", 0x03bf },
+ { "oplus", 0x2295 },
+ { "or", 0x22a6 },
+ { "ordf", 0x00aa },
+ { "ordm", 0x00ba },
+ { "oslash", 0x00f8 },
+ { "otilde", 0x00f5 },
+ { "otimes", 0x2297 },
+ { "ouml", 0x00f6 },
+ { "para", 0x00b6 },
+ { "part", 0x2202 },
+ { "percnt", 0x0025 },
+ { "permil", 0x2030 },
+ { "perp", 0x22a5 },
+ { "phi", 0x03c6 },
+ { "pi", 0x03c0 },
+ { "piv", 0x03d6 },
+ { "plusmn", 0x00b1 },
+ { "pound", 0x00a3 },
+ { "prime", 0x2032 },
+ { "prod", 0x220f },
+ { "prop", 0x221d },
+ { "psi", 0x03c8 },
+ { "quot", 34 },
+ { "rArr", 0x21d2 },
+ { "radic", 0x221a },
+ { "rang", 0x232a },
+ { "raquo", 0x00bb },
+ { "rarr", 0x2192 },
+ { "rceil", 0x2309 },
+ { "rdquo", 0x201d },
+ { "real", 0x211c },
+ { "reg", 0x00ae },
+ { "rfloor", 0x230b },
+ { "rho", 0x03c1 },
+ { "rlm", 0x200f },
+ { "rsaquo", 0x203a },
+ { "rsquo", 0x2019 },
+ { "sbquo", 0x201a },
+ { "scaron", 0x0161 },
+ { "sdot", 0x22c5 },
+ { "sect", 0x00a7 },
+ { "shy", 0x00ad },
+ { "sigma", 0x03c3 },
+ { "sigmaf", 0x03c2 },
+ { "sim", 0x223c },
+ { "spades", 0x2660 },
+ { "sub", 0x2282 },
+ { "sube", 0x2286 },
+ { "sum", 0x2211 },
+ { "sup", 0x2283 },
+ { "sup1", 0x00b9 },
+ { "sup2", 0x00b2 },
+ { "sup3", 0x00b3 },
+ { "supe", 0x2287 },
+ { "szlig", 0x00df },
+ { "tau", 0x03c4 },
+ { "there4", 0x2234 },
+ { "theta", 0x03b8 },
+ { "thetasym", 0x03d1 },
+ { "thinsp", 0x2009 },
+ { "thorn", 0x00fe },
+ { "tilde", 0x02dc },
+ { "times", 0x00d7 },
+ { "trade", 0x2122 },
+ { "uArr", 0x21d1 },
+ { "uacute", 0x00fa },
+ { "uarr", 0x2191 },
+ { "ucirc", 0x00fb },
+ { "ugrave", 0x00f9 },
+ { "uml", 0x00a8 },
+ { "upsih", 0x03d2 },
+ { "upsilon", 0x03c5 },
+ { "uuml", 0x00fc },
+ { "weierp", 0x2118 },
+ { "xi", 0x03be },
+ { "yacute", 0x00fd },
+ { "yen", 0x00a5 },
+ { "yuml", 0x00ff },
+ { "zeta", 0x03b6 },
+ { "zwj", 0x200d },
+ { "zwnj", 0x200c }
+};
+
+Q_STATIC_GLOBAL_OPERATOR bool operator<(const QString &entityStr, const QTextHtmlEntity &entity)
+{
+ return entityStr < QLatin1String(entity.name);
+}
+
+Q_STATIC_GLOBAL_OPERATOR bool operator<(const QTextHtmlEntity &entity, const QString &entityStr)
+{
+ return QLatin1String(entity.name) < entityStr;
+}
+
+static QChar resolveEntity(const QString &entity)
+{
+ const QTextHtmlEntity *start = &entities[0];
+ const QTextHtmlEntity *end = &entities[MAX_ENTITY];
+ const QTextHtmlEntity *e = qBinaryFind(start, end, entity);
+ if (e == end)
+ return QChar();
+ return e->code;
+}
+
+static const ushort windowsLatin1ExtendedCharacters[0xA0 - 0x80] = {
+ 0x20ac, // 0x80
+ 0x0081, // 0x81 direct mapping
+ 0x201a, // 0x82
+ 0x0192, // 0x83
+ 0x201e, // 0x84
+ 0x2026, // 0x85
+ 0x2020, // 0x86
+ 0x2021, // 0x87
+ 0x02C6, // 0x88
+ 0x2030, // 0x89
+ 0x0160, // 0x8A
+ 0x2039, // 0x8B
+ 0x0152, // 0x8C
+ 0x008D, // 0x8D direct mapping
+ 0x017D, // 0x8E
+ 0x008F, // 0x8F directmapping
+ 0x0090, // 0x90 directmapping
+ 0x2018, // 0x91
+ 0x2019, // 0x92
+ 0x201C, // 0x93
+ 0X201D, // 0x94
+ 0x2022, // 0x95
+ 0x2013, // 0x96
+ 0x2014, // 0x97
+ 0x02DC, // 0x98
+ 0x2122, // 0x99
+ 0x0161, // 0x9A
+ 0x203A, // 0x9B
+ 0x0153, // 0x9C
+ 0x009D, // 0x9D direct mapping
+ 0x017E, // 0x9E
+ 0x0178 // 0x9F
+};
+
+// the displayMode value is according to the what are blocks in the piecetable, not
+// what the w3c defines.
+static const QTextHtmlElement elements[Html_NumElements]= {
+ { "a", Html_a, QTextHtmlElement::DisplayInline },
+ { "address", Html_address, QTextHtmlElement::DisplayInline },
+ { "b", Html_b, QTextHtmlElement::DisplayInline },
+ { "big", Html_big, QTextHtmlElement::DisplayInline },
+ { "blockquote", Html_blockquote, QTextHtmlElement::DisplayBlock },
+ { "body", Html_body, QTextHtmlElement::DisplayBlock },
+ { "br", Html_br, QTextHtmlElement::DisplayInline },
+ { "caption", Html_caption, QTextHtmlElement::DisplayBlock },
+ { "center", Html_center, QTextHtmlElement::DisplayBlock },
+ { "cite", Html_cite, QTextHtmlElement::DisplayInline },
+ { "code", Html_code, QTextHtmlElement::DisplayInline },
+ { "dd", Html_dd, QTextHtmlElement::DisplayBlock },
+ { "dfn", Html_dfn, QTextHtmlElement::DisplayInline },
+ { "div", Html_div, QTextHtmlElement::DisplayBlock },
+ { "dl", Html_dl, QTextHtmlElement::DisplayBlock },
+ { "dt", Html_dt, QTextHtmlElement::DisplayBlock },
+ { "em", Html_em, QTextHtmlElement::DisplayInline },
+ { "font", Html_font, QTextHtmlElement::DisplayInline },
+ { "h1", Html_h1, QTextHtmlElement::DisplayBlock },
+ { "h2", Html_h2, QTextHtmlElement::DisplayBlock },
+ { "h3", Html_h3, QTextHtmlElement::DisplayBlock },
+ { "h4", Html_h4, QTextHtmlElement::DisplayBlock },
+ { "h5", Html_h5, QTextHtmlElement::DisplayBlock },
+ { "h6", Html_h6, QTextHtmlElement::DisplayBlock },
+ { "head", Html_head, QTextHtmlElement::DisplayNone },
+ { "hr", Html_hr, QTextHtmlElement::DisplayBlock },
+ { "html", Html_html, QTextHtmlElement::DisplayInline },
+ { "i", Html_i, QTextHtmlElement::DisplayInline },
+ { "img", Html_img, QTextHtmlElement::DisplayInline },
+ { "kbd", Html_kbd, QTextHtmlElement::DisplayInline },
+ { "li", Html_li, QTextHtmlElement::DisplayBlock },
+ { "link", Html_link, QTextHtmlElement::DisplayNone },
+ { "meta", Html_meta, QTextHtmlElement::DisplayNone },
+ { "nobr", Html_nobr, QTextHtmlElement::DisplayInline },
+ { "ol", Html_ol, QTextHtmlElement::DisplayBlock },
+ { "p", Html_p, QTextHtmlElement::DisplayBlock },
+ { "pre", Html_pre, QTextHtmlElement::DisplayBlock },
+ { "qt", Html_body /*deliberate mapping*/, QTextHtmlElement::DisplayBlock },
+ { "s", Html_s, QTextHtmlElement::DisplayInline },
+ { "samp", Html_samp, QTextHtmlElement::DisplayInline },
+ { "script", Html_script, QTextHtmlElement::DisplayNone },
+ { "small", Html_small, QTextHtmlElement::DisplayInline },
+ { "span", Html_span, QTextHtmlElement::DisplayInline },
+ { "strong", Html_strong, QTextHtmlElement::DisplayInline },
+ { "style", Html_style, QTextHtmlElement::DisplayNone },
+ { "sub", Html_sub, QTextHtmlElement::DisplayInline },
+ { "sup", Html_sup, QTextHtmlElement::DisplayInline },
+ { "table", Html_table, QTextHtmlElement::DisplayTable },
+ { "tbody", Html_tbody, QTextHtmlElement::DisplayTable },
+ { "td", Html_td, QTextHtmlElement::DisplayBlock },
+ { "tfoot", Html_tfoot, QTextHtmlElement::DisplayTable },
+ { "th", Html_th, QTextHtmlElement::DisplayBlock },
+ { "thead", Html_thead, QTextHtmlElement::DisplayTable },
+ { "title", Html_title, QTextHtmlElement::DisplayNone },
+ { "tr", Html_tr, QTextHtmlElement::DisplayTable },
+ { "tt", Html_tt, QTextHtmlElement::DisplayInline },
+ { "u", Html_u, QTextHtmlElement::DisplayInline },
+ { "ul", Html_ul, QTextHtmlElement::DisplayBlock },
+ { "var", Html_var, QTextHtmlElement::DisplayInline },
+};
+
+
+Q_STATIC_GLOBAL_OPERATOR bool operator<(const QString &str, const QTextHtmlElement &e)
+{
+ return str < QLatin1String(e.name);
+}
+
+Q_STATIC_GLOBAL_OPERATOR bool operator<(const QTextHtmlElement &e, const QString &str)
+{
+ return QLatin1String(e.name) < str;
+}
+
+static const QTextHtmlElement *lookupElementHelper(const QString &element)
+{
+ const QTextHtmlElement *start = &elements[0];
+ const QTextHtmlElement *end = &elements[Html_NumElements];
+ const QTextHtmlElement *e = qBinaryFind(start, end, element);
+ if (e == end)
+ return 0;
+ return e;
+}
+
+int QTextHtmlParser::lookupElement(const QString &element)
+{
+ const QTextHtmlElement *e = lookupElementHelper(element);
+ if (!e)
+ return -1;
+ return e->id;
+}
+
+// quotes newlines as "\\n"
+static QString quoteNewline(const QString &s)
+{
+ QString n = s;
+ n.replace(QLatin1Char('\n'), QLatin1String("\\n"));
+ return n;
+}
+
+QTextHtmlParserNode::QTextHtmlParserNode()
+ : parent(0), id(Html_unknown),
+ cssFloat(QTextFrameFormat::InFlow), hasOwnListStyle(false),
+ hasCssListIndent(false), isEmptyParagraph(false), isTextFrame(false), isRootFrame(false),
+ displayMode(QTextHtmlElement::DisplayInline), hasHref(false),
+ listStyle(QTextListFormat::ListStyleUndefined), imageWidth(-1), imageHeight(-1), tableBorder(0),
+ tableCellRowSpan(1), tableCellColSpan(1), tableCellSpacing(2), tableCellPadding(0),
+ borderBrush(Qt::darkGray), borderStyle(QTextFrameFormat::BorderStyle_Outset),
+ userState(-1), cssListIndent(0), wsm(WhiteSpaceModeUndefined)
+{
+ margin[QTextHtmlParser::MarginLeft] = 0;
+ margin[QTextHtmlParser::MarginRight] = 0;
+ margin[QTextHtmlParser::MarginTop] = 0;
+ margin[QTextHtmlParser::MarginBottom] = 0;
+}
+
+void QTextHtmlParser::dumpHtml()
+{
+ for (int i = 0; i < count(); ++i) {
+ qDebug().nospace() << qPrintable(QString(depth(i)*4, QLatin1Char(' ')))
+ << qPrintable(at(i).tag) << ':'
+ << quoteNewline(at(i).text);
+ ;
+ }
+}
+
+QTextHtmlParserNode *QTextHtmlParser::newNode(int parent)
+{
+ QTextHtmlParserNode *lastNode = &nodes.last();
+ QTextHtmlParserNode *newNode = 0;
+
+ bool reuseLastNode = true;
+
+ if (nodes.count() == 1) {
+ reuseLastNode = false;
+ } else if (lastNode->tag.isEmpty()) {
+
+ if (lastNode->text.isEmpty()) {
+ reuseLastNode = true;
+ } else { // last node is a text node (empty tag) with some text
+
+ if (lastNode->text.length() == 1 && lastNode->text.at(0).isSpace()) {
+
+ int lastSibling = count() - 2;
+ while (lastSibling
+ && at(lastSibling).parent != lastNode->parent
+ && at(lastSibling).displayMode == QTextHtmlElement::DisplayInline) {
+ lastSibling = at(lastSibling).parent;
+ }
+
+ if (at(lastSibling).displayMode == QTextHtmlElement::DisplayInline) {
+ reuseLastNode = false;
+ } else {
+ reuseLastNode = true;
+ }
+ } else {
+ // text node with real (non-whitespace) text -> nothing to re-use
+ reuseLastNode = false;
+ }
+
+ }
+
+ } else {
+ // last node had a proper tag -> nothing to re-use
+ reuseLastNode = false;
+ }
+
+ if (reuseLastNode) {
+ newNode = lastNode;
+ newNode->tag.clear();
+ newNode->text.clear();
+ newNode->id = Html_unknown;
+ } else {
+ nodes.resize(nodes.size() + 1);
+ newNode = &nodes.last();
+ }
+
+ newNode->parent = parent;
+ return newNode;
+}
+
+void QTextHtmlParser::parse(const QString &text, const QTextDocument *_resourceProvider)
+{
+ nodes.clear();
+ nodes.resize(1);
+ txt = text;
+ pos = 0;
+ len = txt.length();
+ textEditMode = false;
+ resourceProvider = _resourceProvider;
+ parse();
+ //dumpHtml();
+}
+
+int QTextHtmlParser::depth(int i) const
+{
+ int depth = 0;
+ while (i) {
+ i = at(i).parent;
+ ++depth;
+ }
+ return depth;
+}
+
+int QTextHtmlParser::margin(int i, int mar) const {
+ int m = 0;
+ const QTextHtmlParserNode *node;
+ if (mar == MarginLeft
+ || mar == MarginRight) {
+ while (i) {
+ node = &at(i);
+ if (!node->isBlock() && node->id != Html_table)
+ break;
+ if (node->isTableCell())
+ break;
+ m += node->margin[mar];
+ i = node->parent;
+ }
+ }
+ return m;
+}
+
+int QTextHtmlParser::topMargin(int i) const
+{
+ if (!i)
+ return 0;
+ return at(i).margin[MarginTop];
+}
+
+int QTextHtmlParser::bottomMargin(int i) const
+{
+ if (!i)
+ return 0;
+ return at(i).margin[MarginBottom];
+}
+
+void QTextHtmlParser::eatSpace()
+{
+ while (pos < len && txt.at(pos).isSpace() && txt.at(pos) != QChar::ParagraphSeparator)
+ pos++;
+}
+
+void QTextHtmlParser::parse()
+{
+ while (pos < len) {
+ QChar c = txt.at(pos++);
+ if (c == QLatin1Char('<')) {
+ parseTag();
+ } else if (c == QLatin1Char('&')) {
+ nodes.last().text += parseEntity();
+ } else {
+ nodes.last().text += c;
+ }
+ }
+}
+
+// parses a tag after "<"
+void QTextHtmlParser::parseTag()
+{
+ eatSpace();
+
+ // handle comments and other exclamation mark declarations
+ if (hasPrefix(QLatin1Char('!'))) {
+ parseExclamationTag();
+ if (nodes.last().wsm != QTextHtmlParserNode::WhiteSpacePre
+ && nodes.last().wsm != QTextHtmlParserNode::WhiteSpacePreWrap
+ && !textEditMode)
+ eatSpace();
+ return;
+ }
+
+ // if close tag just close
+ if (hasPrefix(QLatin1Char('/'))) {
+ if (nodes.last().id == Html_style) {
+#ifndef QT_NO_CSSPARSER
+ QCss::Parser parser(nodes.last().text);
+ QCss::StyleSheet sheet;
+ sheet.origin = QCss::StyleSheetOrigin_Author;
+ parser.parse(&sheet, Qt::CaseInsensitive);
+ inlineStyleSheets.append(sheet);
+ resolveStyleSheetImports(sheet);
+#endif
+ }
+ parseCloseTag();
+ return;
+ }
+
+ int p = last();
+ while (p && at(p).tag.size() == 0)
+ p = at(p).parent;
+
+ QTextHtmlParserNode *node = newNode(p);
+
+ // parse tag name
+ node->tag = parseWord().toLower();
+
+ const QTextHtmlElement *elem = lookupElementHelper(node->tag);
+ if (elem) {
+ node->id = elem->id;
+ node->displayMode = elem->displayMode;
+ } else {
+ node->id = Html_unknown;
+ }
+
+ node->attributes.clear();
+ // _need_ at least one space after the tag name, otherwise there can't be attributes
+ if (pos < len && txt.at(pos).isSpace())
+ node->attributes = parseAttributes();
+
+ // resolveParent() may have to change the order in the tree and
+ // insert intermediate nodes for buggy HTML, so re-initialize the 'node'
+ // pointer through the return value
+ node = resolveParent();
+ resolveNode();
+
+ const int nodeIndex = nodes.count() - 1; // this new node is always the last
+#ifndef QT_NO_CSSPARSER
+ node->applyCssDeclarations(declarationsForNode(nodeIndex), resourceProvider);
+#endif
+ applyAttributes(node->attributes);
+
+ // finish tag
+ bool tagClosed = false;
+ while (pos < len && txt.at(pos) != QLatin1Char('>')) {
+ if (txt.at(pos) == QLatin1Char('/'))
+ tagClosed = true;
+
+ pos++;
+ }
+ pos++;
+
+ // in a white-space preserving environment strip off a initial newline
+ // since the element itself already generates a newline
+ if ((node->wsm == QTextHtmlParserNode::WhiteSpacePre
+ || node->wsm == QTextHtmlParserNode::WhiteSpacePreWrap)
+ && node->isBlock()) {
+ if (pos < len - 1 && txt.at(pos) == QLatin1Char('\n'))
+ ++pos;
+ }
+
+ if (node->mayNotHaveChildren() || tagClosed) {
+ newNode(node->parent);
+ resolveNode();
+ }
+}
+
+// parses a tag beginning with "/"
+void QTextHtmlParser::parseCloseTag()
+{
+ ++pos;
+ QString tag = parseWord().toLower().trimmed();
+ while (pos < len) {
+ QChar c = txt.at(pos++);
+ if (c == QLatin1Char('>'))
+ break;
+ }
+
+ // find corresponding open node
+ int p = last();
+ if (p > 0
+ && at(p - 1).tag == tag
+ && at(p - 1).mayNotHaveChildren())
+ p--;
+
+ while (p && at(p).tag != tag)
+ p = at(p).parent;
+
+ // simply ignore the tag if we can't find
+ // a corresponding open node, for broken
+ // html such as <font>blah</font></font>
+ if (!p)
+ return;
+
+ // in a white-space preserving environment strip off a trailing newline
+ // since the closing of the opening block element will automatically result
+ // in a new block for elements following the <pre>
+ // ...foo\n</pre><p>blah -> foo</pre><p>blah
+ if ((at(p).wsm == QTextHtmlParserNode::WhiteSpacePre
+ || at(p).wsm == QTextHtmlParserNode::WhiteSpacePreWrap)
+ && at(p).isBlock()) {
+ if (at(last()).text.endsWith(QLatin1Char('\n')))
+ nodes[last()].text.chop(1);
+ }
+
+ newNode(at(p).parent);
+ resolveNode();
+}
+
+// parses a tag beginning with "!"
+void QTextHtmlParser::parseExclamationTag()
+{
+ ++pos;
+ if (hasPrefix(QLatin1Char('-'),1) && hasPrefix(QLatin1Char('-'),2)) {
+ pos += 3;
+ // eat comments
+ int end = txt.indexOf(QLatin1String("-->"), pos);
+ pos = (end >= 0 ? end + 3 : len);
+ } else {
+ // eat internal tags
+ while (pos < len) {
+ QChar c = txt.at(pos++);
+ if (c == QLatin1Char('>'))
+ break;
+ }
+ }
+}
+
+// parses an entity after "&", and returns it
+QString QTextHtmlParser::parseEntity()
+{
+ int recover = pos;
+ QString entity;
+ while (pos < len) {
+ QChar c = txt.at(pos++);
+ if (c.isSpace() || pos - recover > 9) {
+ goto error;
+ }
+ if (c == QLatin1Char(';'))
+ break;
+ entity += c;
+ }
+ {
+ QChar resolved = resolveEntity(entity);
+ if (!resolved.isNull())
+ return QString(resolved);
+ }
+ if (entity.length() > 1 && entity.at(0) == QLatin1Char('#')) {
+ entity.remove(0, 1); // removing leading #
+
+ int base = 10;
+ bool ok = false;
+
+ if (entity.at(0).toLower() == QLatin1Char('x')) { // hex entity?
+ entity.remove(0, 1);
+ base = 16;
+ }
+
+ uint uc = entity.toUInt(&ok, base);
+ if (ok) {
+ if (uc >= 0x80 && uc < 0x80 + (sizeof(windowsLatin1ExtendedCharacters)/sizeof(windowsLatin1ExtendedCharacters[0])))
+ uc = windowsLatin1ExtendedCharacters[uc - 0x80];
+ QString str;
+ if (uc > 0xffff) {
+ // surrogate pair
+ uc -= 0x10000;
+ ushort high = uc/0x400 + 0xd800;
+ ushort low = uc%0x400 + 0xdc00;
+ str.append(QChar(high));
+ str.append(QChar(low));
+ } else {
+ str.append(QChar(uc));
+ }
+ return str;
+ }
+ }
+error:
+ pos = recover;
+ return QLatin1String("&");
+}
+
+// parses one word, possibly quoted, and returns it
+QString QTextHtmlParser::parseWord()
+{
+ QString word;
+ if (hasPrefix(QLatin1Char('\"'))) { // double quotes
+ ++pos;
+ while (pos < len) {
+ QChar c = txt.at(pos++);
+ if (c == QLatin1Char('\"'))
+ break;
+ else if (c == QLatin1Char('&'))
+ word += parseEntity();
+ else
+ word += c;
+ }
+ } else if (hasPrefix(QLatin1Char('\''))) { // single quotes
+ ++pos;
+ while (pos < len) {
+ QChar c = txt.at(pos++);
+ if (c == QLatin1Char('\''))
+ break;
+ else
+ word += c;
+ }
+ } else { // normal text
+ while (pos < len) {
+ QChar c = txt.at(pos++);
+ if (c == QLatin1Char('>')
+ || (c == QLatin1Char('/') && hasPrefix(QLatin1Char('>'), 1))
+ || c == QLatin1Char('<')
+ || c == QLatin1Char('=')
+ || c.isSpace()) {
+ --pos;
+ break;
+ }
+ if (c == QLatin1Char('&'))
+ word += parseEntity();
+ else
+ word += c;
+ }
+ }
+ return word;
+}
+
+// gives the new node the right parent
+QTextHtmlParserNode *QTextHtmlParser::resolveParent()
+{
+ QTextHtmlParserNode *node = &nodes.last();
+
+ int p = node->parent;
+
+ // Excel gives us buggy HTML with just tr without surrounding table tags
+ // or with just td tags
+
+ if (node->id == Html_td) {
+ int n = p;
+ while (n && at(n).id != Html_tr)
+ n = at(n).parent;
+
+ if (!n) {
+ nodes.insert(nodes.count() - 1, QTextHtmlParserNode());
+ nodes.insert(nodes.count() - 1, QTextHtmlParserNode());
+
+ QTextHtmlParserNode *table = &nodes[nodes.count() - 3];
+ table->parent = p;
+ table->id = Html_table;
+ table->tag = QLatin1String("table");
+ table->children.append(nodes.count() - 2); // add row as child
+
+ QTextHtmlParserNode *row = &nodes[nodes.count() - 2];
+ row->parent = nodes.count() - 3; // table as parent
+ row->id = Html_tr;
+ row->tag = QLatin1String("tr");
+
+ p = nodes.count() - 2;
+ node = &nodes.last(); // re-initialize pointer
+ }
+ }
+
+ if (node->id == Html_tr) {
+ int n = p;
+ while (n && at(n).id != Html_table)
+ n = at(n).parent;
+
+ if (!n) {
+ nodes.insert(nodes.count() - 1, QTextHtmlParserNode());
+ QTextHtmlParserNode *table = &nodes[nodes.count() - 2];
+ table->parent = p;
+ table->id = Html_table;
+ table->tag = QLatin1String("table");
+ p = nodes.count() - 2;
+ node = &nodes.last(); // re-initialize pointer
+ }
+ }
+
+ // permit invalid html by letting block elements be children
+ // of inline elements with the exception of paragraphs:
+ //
+ // a new paragraph closes parent inline elements (while loop),
+ // unless they themselves are children of a non-paragraph block
+ // element (if statement)
+ //
+ // For example:
+ //
+ // <body><p><b>Foo<p>Bar <-- second <p> implicitly closes <b> that
+ // belongs to the first <p>. The self-nesting
+ // check further down prevents the second <p>
+ // from nesting into the first one then.
+ // so Bar is not bold.
+ //
+ // <body><b><p>Foo <-- Foo should be bold.
+ //
+ // <body><b><p>Foo<p>Bar <-- Foo and Bar should be bold.
+ //
+ if (node->id == Html_p) {
+ while (p && !at(p).isBlock())
+ p = at(p).parent;
+
+ if (!p || at(p).id != Html_p)
+ p = node->parent;
+ }
+
+ // some elements are not self nesting
+ if (node->id == at(p).id
+ && node->isNotSelfNesting())
+ p = at(p).parent;
+
+ // some elements are not allowed in certain contexts
+ while ((p && !node->allowedInContext(at(p).id))
+ // ### make new styles aware of empty tags
+ || at(p).mayNotHaveChildren()
+ ) {
+ p = at(p).parent;
+ }
+
+ node->parent = p;
+
+ // makes it easier to traverse the tree, later
+ nodes[p].children.append(nodes.count() - 1);
+ return node;
+}
+
+// sets all properties on the new node
+void QTextHtmlParser::resolveNode()
+{
+ QTextHtmlParserNode *node = &nodes.last();
+ const QTextHtmlParserNode *parent = &nodes.at(node->parent);
+ node->initializeProperties(parent, this);
+}
+
+bool QTextHtmlParserNode::isNestedList(const QTextHtmlParser *parser) const
+{
+ if (!isListStart())
+ return false;
+
+ int p = parent;
+ while (p) {
+ if (parser->at(p).isListStart())
+ return true;
+ p = parser->at(p).parent;
+ }
+ return false;
+}
+
+void QTextHtmlParserNode::initializeProperties(const QTextHtmlParserNode *parent, const QTextHtmlParser *parser)
+{
+ // inherit properties from parent element
+ charFormat = parent->charFormat;
+
+ if (id == Html_html)
+ blockFormat.setLayoutDirection(Qt::LeftToRight); // HTML default
+ else if (parent->blockFormat.hasProperty(QTextFormat::LayoutDirection))
+ blockFormat.setLayoutDirection(parent->blockFormat.layoutDirection());
+
+ if (parent->displayMode == QTextHtmlElement::DisplayNone)
+ displayMode = QTextHtmlElement::DisplayNone;
+
+ if (parent->id != Html_table || id == Html_caption) {
+ if (parent->blockFormat.hasProperty(QTextFormat::BlockAlignment))
+ blockFormat.setAlignment(parent->blockFormat.alignment());
+ else
+ blockFormat.clearProperty(QTextFormat::BlockAlignment);
+ }
+ // we don't paint per-row background colors, yet. so as an
+ // exception inherit the background color here
+ // we also inherit the background between inline elements
+ if ((parent->id != Html_tr || !isTableCell())
+ && (displayMode != QTextHtmlElement::DisplayInline || parent->displayMode != QTextHtmlElement::DisplayInline)) {
+ charFormat.clearProperty(QTextFormat::BackgroundBrush);
+ }
+
+ listStyle = parent->listStyle;
+ // makes no sense to inherit that property, a named anchor is a single point
+ // in the document, which is set by the DocumentFragment
+ charFormat.clearProperty(QTextFormat::AnchorName);
+ wsm = parent->wsm;
+
+ // initialize remaining properties
+ margin[QTextHtmlParser::MarginLeft] = 0;
+ margin[QTextHtmlParser::MarginRight] = 0;
+ margin[QTextHtmlParser::MarginTop] = 0;
+ margin[QTextHtmlParser::MarginBottom] = 0;
+ cssFloat = QTextFrameFormat::InFlow;
+
+ for (int i = 0; i < 4; ++i)
+ padding[i] = -1;
+
+ // set element specific attributes
+ switch (id) {
+ case Html_a:
+ charFormat.setAnchor(true);
+ for (int i = 0; i < attributes.count(); i += 2) {
+ const QString key = attributes.at(i);
+ if (key.compare(QLatin1String("href"), Qt::CaseInsensitive) == 0
+ && !attributes.at(i + 1).isEmpty()) {
+ hasHref = true;
+ charFormat.setUnderlineStyle(QTextCharFormat::SingleUnderline);
+ charFormat.setForeground(QApplication::palette().link());
+ }
+ }
+
+ break;
+ case Html_em:
+ case Html_i:
+ case Html_cite:
+ case Html_address:
+ case Html_var:
+ case Html_dfn:
+ charFormat.setFontItalic(true);
+ break;
+ case Html_big:
+ charFormat.setProperty(QTextFormat::FontSizeAdjustment, int(1));
+ break;
+ case Html_small:
+ charFormat.setProperty(QTextFormat::FontSizeAdjustment, int(-1));
+ break;
+ case Html_strong:
+ case Html_b:
+ charFormat.setFontWeight(QFont::Bold);
+ break;
+ case Html_h1:
+ charFormat.setFontWeight(QFont::Bold);
+ charFormat.setProperty(QTextFormat::FontSizeAdjustment, int(3));
+ margin[QTextHtmlParser::MarginTop] = 18;
+ margin[QTextHtmlParser::MarginBottom] = 12;
+ break;
+ case Html_h2:
+ charFormat.setFontWeight(QFont::Bold);
+ charFormat.setProperty(QTextFormat::FontSizeAdjustment, int(2));
+ margin[QTextHtmlParser::MarginTop] = 16;
+ margin[QTextHtmlParser::MarginBottom] = 12;
+ break;
+ case Html_h3:
+ charFormat.setFontWeight(QFont::Bold);
+ charFormat.setProperty(QTextFormat::FontSizeAdjustment, int(1));
+ margin[QTextHtmlParser::MarginTop] = 14;
+ margin[QTextHtmlParser::MarginBottom] = 12;
+ break;
+ case Html_h4:
+ charFormat.setFontWeight(QFont::Bold);
+ charFormat.setProperty(QTextFormat::FontSizeAdjustment, int(0));
+ margin[QTextHtmlParser::MarginTop] = 12;
+ margin[QTextHtmlParser::MarginBottom] = 12;
+ break;
+ case Html_h5:
+ charFormat.setFontWeight(QFont::Bold);
+ charFormat.setProperty(QTextFormat::FontSizeAdjustment, int(-1));
+ margin[QTextHtmlParser::MarginTop] = 12;
+ margin[QTextHtmlParser::MarginBottom] = 4;
+ break;
+ case Html_p:
+ margin[QTextHtmlParser::MarginTop] = 12;
+ margin[QTextHtmlParser::MarginBottom] = 12;
+ break;
+ case Html_center:
+ blockFormat.setAlignment(Qt::AlignCenter);
+ break;
+ case Html_ul:
+ listStyle = QTextListFormat::ListDisc;
+ // nested lists don't have margins, except for the toplevel one
+ if (!isNestedList(parser)) {
+ margin[QTextHtmlParser::MarginTop] = 12;
+ margin[QTextHtmlParser::MarginBottom] = 12;
+ }
+ // no left margin as we use indenting instead
+ break;
+ case Html_ol:
+ listStyle = QTextListFormat::ListDecimal;
+ // nested lists don't have margins, except for the toplevel one
+ if (!isNestedList(parser)) {
+ margin[QTextHtmlParser::MarginTop] = 12;
+ margin[QTextHtmlParser::MarginBottom] = 12;
+ }
+ // no left margin as we use indenting instead
+ break;
+ case Html_code:
+ case Html_tt:
+ case Html_kbd:
+ case Html_samp:
+ charFormat.setFontFamily(QString::fromLatin1("Courier New,courier"));
+ // <tt> uses a fixed font, so set the property
+ charFormat.setFontFixedPitch(true);
+ break;
+ case Html_br:
+ text = QChar(QChar::LineSeparator);
+ wsm = QTextHtmlParserNode::WhiteSpacePre;
+ break;
+ // ##### sub / sup
+ case Html_pre:
+ charFormat.setFontFamily(QString::fromLatin1("Courier New,courier"));
+ wsm = WhiteSpacePre;
+ margin[QTextHtmlParser::MarginTop] = 12;
+ margin[QTextHtmlParser::MarginBottom] = 12;
+ // <pre> uses a fixed font
+ charFormat.setFontFixedPitch(true);
+ break;
+ case Html_blockquote:
+ margin[QTextHtmlParser::MarginTop] = 12;
+ margin[QTextHtmlParser::MarginBottom] = 12;
+ margin[QTextHtmlParser::MarginLeft] = 40;
+ margin[QTextHtmlParser::MarginRight] = 40;
+ break;
+ case Html_dl:
+ margin[QTextHtmlParser::MarginTop] = 8;
+ margin[QTextHtmlParser::MarginBottom] = 8;
+ break;
+ case Html_dd:
+ margin[QTextHtmlParser::MarginLeft] = 30;
+ break;
+ case Html_u:
+ charFormat.setUnderlineStyle(QTextCharFormat::SingleUnderline);
+ break;
+ case Html_s:
+ charFormat.setFontStrikeOut(true);
+ break;
+ case Html_nobr:
+ wsm = WhiteSpaceNoWrap;
+ break;
+ case Html_th:
+ charFormat.setFontWeight(QFont::Bold);
+ blockFormat.setAlignment(Qt::AlignCenter);
+ break;
+ case Html_td:
+ blockFormat.setAlignment(Qt::AlignLeft);
+ break;
+ case Html_sub:
+ charFormat.setVerticalAlignment(QTextCharFormat::AlignSubScript);
+ break;
+ case Html_sup:
+ charFormat.setVerticalAlignment(QTextCharFormat::AlignSuperScript);
+ break;
+ default: break;
+ }
+}
+
+#ifndef QT_NO_CSSPARSER
+void QTextHtmlParserNode::setListStyle(const QVector<QCss::Value> &cssValues)
+{
+ for (int i = 0; i < cssValues.count(); ++i) {
+ if (cssValues.at(i).type == QCss::Value::KnownIdentifier) {
+ switch (static_cast<QCss::KnownValue>(cssValues.at(i).variant.toInt())) {
+ case QCss::Value_Disc: hasOwnListStyle = true; listStyle = QTextListFormat::ListDisc; break;
+ case QCss::Value_Square: hasOwnListStyle = true; listStyle = QTextListFormat::ListSquare; break;
+ case QCss::Value_Circle: hasOwnListStyle = true; listStyle = QTextListFormat::ListCircle; break;
+ case QCss::Value_Decimal: hasOwnListStyle = true; listStyle = QTextListFormat::ListDecimal; break;
+ case QCss::Value_LowerAlpha: hasOwnListStyle = true; listStyle = QTextListFormat::ListLowerAlpha; break;
+ case QCss::Value_UpperAlpha: hasOwnListStyle = true; listStyle = QTextListFormat::ListUpperAlpha; break;
+ case QCss::Value_LowerRoman: hasOwnListStyle = true; listStyle = QTextListFormat::ListLowerRoman; break;
+ case QCss::Value_UpperRoman: hasOwnListStyle = true; listStyle = QTextListFormat::ListUpperRoman; break;
+ default: break;
+ }
+ }
+ }
+ // allow individual list items to override the style
+ if (id == Html_li && hasOwnListStyle)
+ blockFormat.setProperty(QTextFormat::ListStyle, listStyle);
+}
+
+void QTextHtmlParserNode::applyCssDeclarations(const QVector<QCss::Declaration> &declarations, const QTextDocument *resourceProvider)
+{
+ QCss::ValueExtractor extractor(declarations);
+ extractor.extractBox(margin, padding);
+
+ for (int i = 0; i < declarations.count(); ++i) {
+ const QCss::Declaration &decl = declarations.at(i);
+ if (decl.d->values.isEmpty()) continue;
+
+ QCss::KnownValue identifier = QCss::UnknownValue;
+ if (decl.d->values.first().type == QCss::Value::KnownIdentifier)
+ identifier = static_cast<QCss::KnownValue>(decl.d->values.first().variant.toInt());
+
+ switch (decl.d->propertyId) {
+ case QCss::BorderColor: borderBrush = QBrush(decl.colorValue()); break;
+ case QCss::BorderStyles:
+ if (decl.styleValue() != QCss::BorderStyle_Unknown && decl.styleValue() != QCss::BorderStyle_Native)
+ borderStyle = static_cast<QTextFrameFormat::BorderStyle>(decl.styleValue() - 1);
+ break;
+ case QCss::BorderWidth:
+ tableBorder = extractor.lengthValue(decl);
+ break;
+ case QCss::Color: charFormat.setForeground(decl.colorValue()); break;
+ case QCss::Float:
+ cssFloat = QTextFrameFormat::InFlow;
+ switch (identifier) {
+ case QCss::Value_Left: cssFloat = QTextFrameFormat::FloatLeft; break;
+ case QCss::Value_Right: cssFloat = QTextFrameFormat::FloatRight; break;
+ default: break;
+ }
+ break;
+ case QCss::QtBlockIndent:
+ blockFormat.setIndent(decl.d->values.first().variant.toInt());
+ break;
+ case QCss::TextIndent: {
+ qreal indent = 0;
+ if (decl.realValue(&indent, "px"))
+ blockFormat.setTextIndent(indent);
+ break; }
+ case QCss::QtListIndent:
+ if (decl.intValue(&cssListIndent))
+ hasCssListIndent = true;
+ break;
+ case QCss::QtParagraphType:
+ if (decl.d->values.first().variant.toString().compare(QLatin1String("empty"), Qt::CaseInsensitive) == 0)
+ isEmptyParagraph = true;
+ break;
+ case QCss::QtTableType:
+ if (decl.d->values.first().variant.toString().compare(QLatin1String("frame"), Qt::CaseInsensitive) == 0)
+ isTextFrame = true;
+ else if (decl.d->values.first().variant.toString().compare(QLatin1String("root"), Qt::CaseInsensitive) == 0) {
+ isTextFrame = true;
+ isRootFrame = true;
+ }
+ break;
+ case QCss::QtUserState:
+ userState = decl.d->values.first().variant.toInt();
+ break;
+ case QCss::Whitespace:
+ switch (identifier) {
+ case QCss::Value_Normal: wsm = QTextHtmlParserNode::WhiteSpaceNormal; break;
+ case QCss::Value_Pre: wsm = QTextHtmlParserNode::WhiteSpacePre; break;
+ case QCss::Value_NoWrap: wsm = QTextHtmlParserNode::WhiteSpaceNoWrap; break;
+ case QCss::Value_PreWrap: wsm = QTextHtmlParserNode::WhiteSpacePreWrap; break;
+ default: break;
+ }
+ break;
+ case QCss::VerticalAlignment:
+ switch (identifier) {
+ case QCss::Value_Sub: charFormat.setVerticalAlignment(QTextCharFormat::AlignSubScript); break;
+ case QCss::Value_Super: charFormat.setVerticalAlignment(QTextCharFormat::AlignSuperScript); break;
+ case QCss::Value_Middle: charFormat.setVerticalAlignment(QTextCharFormat::AlignMiddle); break;
+ case QCss::Value_Top: charFormat.setVerticalAlignment(QTextCharFormat::AlignTop); break;
+ case QCss::Value_Bottom: charFormat.setVerticalAlignment(QTextCharFormat::AlignBottom); break;
+ default: charFormat.setVerticalAlignment(QTextCharFormat::AlignNormal); break;
+ }
+ break;
+ case QCss::PageBreakBefore:
+ switch (identifier) {
+ case QCss::Value_Always: blockFormat.setPageBreakPolicy(blockFormat.pageBreakPolicy() | QTextFormat::PageBreak_AlwaysBefore); break;
+ case QCss::Value_Auto: blockFormat.setPageBreakPolicy(blockFormat.pageBreakPolicy() & ~QTextFormat::PageBreak_AlwaysBefore); break;
+ default: break;
+ }
+ break;
+ case QCss::PageBreakAfter:
+ switch (identifier) {
+ case QCss::Value_Always: blockFormat.setPageBreakPolicy(blockFormat.pageBreakPolicy() | QTextFormat::PageBreak_AlwaysAfter); break;
+ case QCss::Value_Auto: blockFormat.setPageBreakPolicy(blockFormat.pageBreakPolicy() & ~QTextFormat::PageBreak_AlwaysAfter); break;
+ default: break;
+ }
+ break;
+ case QCss::TextUnderlineStyle:
+ switch (identifier) {
+ case QCss::Value_None: charFormat.setUnderlineStyle(QTextCharFormat::NoUnderline); break;
+ case QCss::Value_Solid: charFormat.setUnderlineStyle(QTextCharFormat::SingleUnderline); break;
+ case QCss::Value_Dashed: charFormat.setUnderlineStyle(QTextCharFormat::DashUnderline); break;
+ case QCss::Value_Dotted: charFormat.setUnderlineStyle(QTextCharFormat::DotLine); break;
+ case QCss::Value_DotDash: charFormat.setUnderlineStyle(QTextCharFormat::DashDotLine); break;
+ case QCss::Value_DotDotDash: charFormat.setUnderlineStyle(QTextCharFormat::DashDotDotLine); break;
+ case QCss::Value_Wave: charFormat.setUnderlineStyle(QTextCharFormat::WaveUnderline); break;
+ default: break;
+ }
+ break;
+ case QCss::ListStyleType:
+ case QCss::ListStyle:
+ setListStyle(decl.d->values);
+ break;
+ default: break;
+ }
+ }
+
+ QFont f;
+ int adjustment = -255;
+ extractor.extractFont(&f, &adjustment);
+ if (f.resolve() & QFont::SizeResolved) {
+ if (f.pointSize() > 0) {
+ charFormat.setFontPointSize(f.pointSize());
+ } else if (f.pixelSize() > 0) {
+ charFormat.setProperty(QTextFormat::FontPixelSize, f.pixelSize());
+ }
+ }
+ if (f.resolve() & QFont::StyleResolved)
+ charFormat.setFontItalic(f.style() != QFont::StyleNormal);
+
+ if (f.resolve() & QFont::WeightResolved)
+ charFormat.setFontWeight(f.weight());
+
+ if (f.resolve() & QFont::FamilyResolved)
+ charFormat.setFontFamily(f.family());
+
+ if (f.resolve() & QFont::UnderlineResolved)
+ charFormat.setUnderlineStyle(f.underline() ? QTextCharFormat::SingleUnderline : QTextCharFormat::NoUnderline);
+
+ if (f.resolve() & QFont::OverlineResolved)
+ charFormat.setFontOverline(f.overline());
+
+ if (f.resolve() & QFont::StrikeOutResolved)
+ charFormat.setFontStrikeOut(f.strikeOut());
+
+ if (f.resolve() & QFont::CapitalizationResolved)
+ charFormat.setFontCapitalization(f.capitalization());
+
+ if (adjustment >= -1)
+ charFormat.setProperty(QTextFormat::FontSizeAdjustment, adjustment);
+
+ {
+ Qt::Alignment ignoredAlignment;
+ QCss::Repeat ignoredRepeat;
+ QString bgImage;
+ QBrush bgBrush;
+ QCss::Origin ignoredOrigin, ignoredClip;
+ QCss::Attachment ignoredAttachment;
+ extractor.extractBackground(&bgBrush, &bgImage, &ignoredRepeat, &ignoredAlignment,
+ &ignoredOrigin, &ignoredAttachment, &ignoredClip);
+
+ if (!bgImage.isEmpty() && resourceProvider) {
+ applyBackgroundImage(bgImage, resourceProvider);
+ } else if (bgBrush.style() != Qt::NoBrush) {
+ charFormat.setBackground(bgBrush);
+ }
+ }
+}
+
+#endif // QT_NO_CSSPARSER
+
+void QTextHtmlParserNode::applyBackgroundImage(const QString &url, const QTextDocument *resourceProvider)
+{
+ if (!url.isEmpty() && resourceProvider) {
+ QVariant val = resourceProvider->resource(QTextDocument::ImageResource, url);
+
+ if (qApp->thread() != QThread::currentThread()) {
+ // must use images in non-GUI threads
+ if (val.type() == QVariant::Image) {
+ QImage image = qvariant_cast<QImage>(val);
+ charFormat.setBackground(image);
+ } else if (val.type() == QVariant::ByteArray) {
+ QImage image;
+ if (image.loadFromData(val.toByteArray())) {
+ charFormat.setBackground(image);
+ }
+ }
+ } else {
+ if (val.type() == QVariant::Image || val.type() == QVariant::Pixmap) {
+ charFormat.setBackground(qvariant_cast<QPixmap>(val));
+ } else if (val.type() == QVariant::ByteArray) {
+ QPixmap pm;
+ if (pm.loadFromData(val.toByteArray())) {
+ charFormat.setBackground(pm);
+ }
+ }
+ }
+ }
+ if (!url.isEmpty())
+ charFormat.setProperty(QTextFormat::BackgroundImageUrl, url);
+}
+
+bool QTextHtmlParserNode::hasOnlyWhitespace() const
+{
+ for (int i = 0; i < text.count(); ++i)
+ if (!text.at(i).isSpace() || text.at(i) == QChar::LineSeparator)
+ return false;
+ return true;
+}
+
+static bool setIntAttribute(int *destination, const QString &value)
+{
+ bool ok = false;
+ int val = value.toInt(&ok);
+ if (ok)
+ *destination = val;
+
+ return ok;
+}
+
+static bool setFloatAttribute(qreal *destination, const QString &value)
+{
+ bool ok = false;
+ qreal val = value.toDouble(&ok);
+ if (ok)
+ *destination = val;
+
+ return ok;
+}
+
+static void setWidthAttribute(QTextLength *width, QString value)
+{
+ bool ok = false;
+ qreal realVal = value.toDouble(&ok);
+ if (ok) {
+ *width = QTextLength(QTextLength::FixedLength, realVal);
+ } else {
+ value = value.trimmed();
+ if (!value.isEmpty() && value.endsWith(QLatin1Char('%'))) {
+ value.chop(1);
+ realVal = value.toDouble(&ok);
+ if (ok)
+ *width = QTextLength(QTextLength::PercentageLength, realVal);
+ }
+ }
+}
+
+#ifndef QT_NO_CSSPARSER
+void QTextHtmlParserNode::parseStyleAttribute(const QString &value, const QTextDocument *resourceProvider)
+{
+ QString css = value;
+ css.prepend(QLatin1String("* {"));
+ css.append(QLatin1Char('}'));
+ QCss::Parser parser(css);
+ QCss::StyleSheet sheet;
+ parser.parse(&sheet, Qt::CaseInsensitive);
+ if (sheet.styleRules.count() != 1) return;
+ applyCssDeclarations(sheet.styleRules.at(0).declarations, resourceProvider);
+}
+#endif
+
+QStringList QTextHtmlParser::parseAttributes()
+{
+ QStringList attrs;
+
+ while (pos < len) {
+ eatSpace();
+ if (hasPrefix(QLatin1Char('>')) || hasPrefix(QLatin1Char('/')))
+ break;
+ QString key = parseWord().toLower();
+ QString value = QLatin1String("1");
+ if (key.size() == 0)
+ break;
+ eatSpace();
+ if (hasPrefix(QLatin1Char('='))){
+ pos++;
+ eatSpace();
+ value = parseWord();
+ }
+ if (value.size() == 0)
+ continue;
+ attrs << key << value;
+ }
+
+ return attrs;
+}
+
+void QTextHtmlParser::applyAttributes(const QStringList &attributes)
+{
+ // local state variable for qt3 textedit mode
+ bool seenQt3Richtext = false;
+ QString linkHref;
+ QString linkType;
+
+ if (attributes.count() % 2 == 1)
+ return;
+
+ QTextHtmlParserNode *node = &nodes.last();
+
+ for (int i = 0; i < attributes.count(); i += 2) {
+ QString key = attributes.at(i);
+ QString value = attributes.at(i + 1);
+
+ switch (node->id) {
+ case Html_font:
+ // the infamous font tag
+ if (key == QLatin1String("size") && value.size()) {
+ int n = value.toInt();
+ if (value.at(0) != QLatin1Char('+') && value.at(0) != QLatin1Char('-'))
+ n -= 3;
+ node->charFormat.setProperty(QTextFormat::FontSizeAdjustment, n);
+ } else if (key == QLatin1String("face")) {
+ node->charFormat.setFontFamily(value);
+ } else if (key == QLatin1String("color")) {
+ QColor c; c.setNamedColor(value);
+ if (!c.isValid())
+ qWarning("QTextHtmlParser::applyAttributes: Unknown color name '%s'",value.toLatin1().constData());
+ node->charFormat.setForeground(c);
+ }
+ break;
+ case Html_ol:
+ case Html_ul:
+ if (key == QLatin1String("type")) {
+ node->hasOwnListStyle = true;
+ if (value == QLatin1String("1")) {
+ node->listStyle = QTextListFormat::ListDecimal;
+ } else if (value == QLatin1String("a")) {
+ node->listStyle = QTextListFormat::ListLowerAlpha;
+ } else if (value == QLatin1String("A")) {
+ node->listStyle = QTextListFormat::ListUpperAlpha;
+ } else if (value == QLatin1String("i")) {
+ node->listStyle = QTextListFormat::ListLowerRoman;
+ } else if (value == QLatin1String("I")) {
+ node->listStyle = QTextListFormat::ListUpperRoman;
+ } else {
+ value = value.toLower();
+ if (value == QLatin1String("square"))
+ node->listStyle = QTextListFormat::ListSquare;
+ else if (value == QLatin1String("disc"))
+ node->listStyle = QTextListFormat::ListDisc;
+ else if (value == QLatin1String("circle"))
+ node->listStyle = QTextListFormat::ListCircle;
+ }
+ }
+ break;
+ case Html_a:
+ if (key == QLatin1String("href"))
+ node->charFormat.setAnchorHref(value);
+ else if (key == QLatin1String("name"))
+ node->charFormat.setAnchorName(value);
+ break;
+ case Html_img:
+ if (key == QLatin1String("src") || key == QLatin1String("source")) {
+ node->imageName = value;
+ } else if (key == QLatin1String("width")) {
+ node->imageWidth = -2; // register that there is a value for it.
+ setFloatAttribute(&node->imageWidth, value);
+ } else if (key == QLatin1String("height")) {
+ node->imageHeight = -2; // register that there is a value for it.
+ setFloatAttribute(&node->imageHeight, value);
+ }
+ break;
+ case Html_tr:
+ case Html_body:
+ if (key == QLatin1String("bgcolor")) {
+ QColor c; c.setNamedColor(value);
+ if (!c.isValid())
+ qWarning("QTextHtmlParser::applyAttributes: Unknown color name '%s'",value.toLatin1().constData());
+ node->charFormat.setBackground(c);
+ } else if (key == QLatin1String("background")) {
+ node->applyBackgroundImage(value, resourceProvider);
+ }
+ break;
+ case Html_th:
+ case Html_td:
+ if (key == QLatin1String("width")) {
+ setWidthAttribute(&node->width, value);
+ } else if (key == QLatin1String("bgcolor")) {
+ QColor c; c.setNamedColor(value);
+ if (!c.isValid())
+ qWarning("QTextHtmlParser::applyAttributes: Unknown color name '%s'",value.toLatin1().constData());
+ node->charFormat.setBackground(c);
+ } else if (key == QLatin1String("background")) {
+ node->applyBackgroundImage(value, resourceProvider);
+ } else if (key == QLatin1String("rowspan")) {
+ if (setIntAttribute(&node->tableCellRowSpan, value))
+ node->tableCellRowSpan = qMax(1, node->tableCellRowSpan);
+ } else if (key == QLatin1String("colspan")) {
+ if (setIntAttribute(&node->tableCellColSpan, value))
+ node->tableCellColSpan = qMax(1, node->tableCellColSpan);
+ }
+ break;
+ case Html_table:
+ if (key == QLatin1String("border")) {
+ setFloatAttribute(&node->tableBorder, value);
+ } else if (key == QLatin1String("bgcolor")) {
+ QColor c; c.setNamedColor(value);
+ if (!c.isValid())
+ qWarning("QTextHtmlParser::applyAttributes: Unknown color name '%s'",value.toLatin1().constData());
+ node->charFormat.setBackground(c);
+ } else if (key == QLatin1String("background")) {
+ node->applyBackgroundImage(value, resourceProvider);
+ } else if (key == QLatin1String("cellspacing")) {
+ setFloatAttribute(&node->tableCellSpacing, value);
+ } else if (key == QLatin1String("cellpadding")) {
+ setFloatAttribute(&node->tableCellPadding, value);
+ } else if (key == QLatin1String("width")) {
+ setWidthAttribute(&node->width, value);
+ } else if (key == QLatin1String("height")) {
+ setWidthAttribute(&node->height, value);
+ }
+ break;
+ case Html_meta:
+ if (key == QLatin1String("name")
+ && value == QLatin1String("qrichtext")) {
+ seenQt3Richtext = true;
+ }
+
+ if (key == QLatin1String("content")
+ && value == QLatin1String("1")
+ && seenQt3Richtext) {
+
+ textEditMode = true;
+ }
+ break;
+ case Html_hr:
+ if (key == QLatin1String("width"))
+ setWidthAttribute(&node->width, value);
+ break;
+ case Html_link:
+ if (key == QLatin1String("href"))
+ linkHref = value;
+ else if (key == QLatin1String("type"))
+ linkType = value;
+ break;
+ default:
+ break;
+ }
+
+ if (key == QLatin1String("style")) {
+#ifndef QT_NO_CSSPARSER
+ node->parseStyleAttribute(value, resourceProvider);
+#endif
+ } else if (key == QLatin1String("align")) {
+ value = value.toLower();
+ bool alignmentSet = true;
+
+ if (value == QLatin1String("left"))
+ node->blockFormat.setAlignment(Qt::AlignLeft|Qt::AlignAbsolute);
+ else if (value == QLatin1String("right"))
+ node->blockFormat.setAlignment(Qt::AlignRight|Qt::AlignAbsolute);
+ else if (value == QLatin1String("center"))
+ node->blockFormat.setAlignment(Qt::AlignHCenter);
+ else if (value == QLatin1String("justify"))
+ node->blockFormat.setAlignment(Qt::AlignJustify);
+ else
+ alignmentSet = false;
+
+ if (node->id == Html_img) {
+ // HTML4 compat
+ if (alignmentSet) {
+ if (node->blockFormat.alignment() & Qt::AlignLeft)
+ node->cssFloat = QTextFrameFormat::FloatLeft;
+ else if (node->blockFormat.alignment() & Qt::AlignRight)
+ node->cssFloat = QTextFrameFormat::FloatRight;
+ } else if (value == QLatin1String("middle")) {
+ node->charFormat.setVerticalAlignment(QTextCharFormat::AlignMiddle);
+ } else if (value == QLatin1String("top")) {
+ node->charFormat.setVerticalAlignment(QTextCharFormat::AlignTop);
+ }
+ }
+ } else if (key == QLatin1String("valign")) {
+ value = value.toLower();
+ if (value == QLatin1String("top"))
+ node->charFormat.setVerticalAlignment(QTextCharFormat::AlignTop);
+ else if (value == QLatin1String("middle"))
+ node->charFormat.setVerticalAlignment(QTextCharFormat::AlignMiddle);
+ else if (value == QLatin1String("bottom"))
+ node->charFormat.setVerticalAlignment(QTextCharFormat::AlignBottom);
+ } else if (key == QLatin1String("dir")) {
+ value = value.toLower();
+ if (value == QLatin1String("ltr"))
+ node->blockFormat.setLayoutDirection(Qt::LeftToRight);
+ else if (value == QLatin1String("rtl"))
+ node->blockFormat.setLayoutDirection(Qt::RightToLeft);
+ } else if (key == QLatin1String("title")) {
+ node->charFormat.setToolTip(value);
+ } else if (key == QLatin1String("id")) {
+ node->charFormat.setAnchor(true);
+ node->charFormat.setAnchorName(value);
+ }
+ }
+
+#ifndef QT_NO_CSSPARSER
+ if (resourceProvider && !linkHref.isEmpty() && linkType == QLatin1String("text/css"))
+ importStyleSheet(linkHref);
+#endif
+}
+
+#ifndef QT_NO_CSSPARSER
+class QTextHtmlStyleSelector : public QCss::StyleSelector
+{
+public:
+ inline QTextHtmlStyleSelector(const QTextHtmlParser *parser)
+ : parser(parser) { nameCaseSensitivity = Qt::CaseInsensitive; }
+
+ virtual QStringList nodeNames(NodePtr node) const;
+ virtual QString attribute(NodePtr node, const QString &name) const;
+ virtual bool hasAttributes(NodePtr node) const;
+ virtual bool isNullNode(NodePtr node) const;
+ virtual NodePtr parentNode(NodePtr node) const;
+ virtual NodePtr previousSiblingNode(NodePtr node) const;
+ virtual NodePtr duplicateNode(NodePtr node) const;
+ virtual void freeNode(NodePtr node) const;
+
+private:
+ const QTextHtmlParser *parser;
+};
+
+QStringList QTextHtmlStyleSelector::nodeNames(NodePtr node) const
+{
+ return QStringList(parser->at(node.id).tag.toLower());
+}
+
+#endif // QT_NO_CSSPARSER
+
+static inline int findAttribute(const QStringList &attributes, const QString &name)
+{
+ int idx = -1;
+ do {
+ idx = attributes.indexOf(name, idx + 1);
+ } while (idx != -1 && (idx % 2 == 1));
+ return idx;
+}
+
+#ifndef QT_NO_CSSPARSER
+
+QString QTextHtmlStyleSelector::attribute(NodePtr node, const QString &name) const
+{
+ const QStringList &attributes = parser->at(node.id).attributes;
+ const int idx = findAttribute(attributes, name);
+ if (idx == -1)
+ return QString();
+ return attributes.at(idx + 1);
+}
+
+bool QTextHtmlStyleSelector::hasAttributes(NodePtr node) const
+{
+ const QStringList &attributes = parser->at(node.id).attributes;
+ return !attributes.isEmpty();
+}
+
+bool QTextHtmlStyleSelector::isNullNode(NodePtr node) const
+{
+ return node.id == 0;
+}
+
+QCss::StyleSelector::NodePtr QTextHtmlStyleSelector::parentNode(NodePtr node) const
+{
+ NodePtr parent;
+ parent.id = 0;
+ if (node.id) {
+ parent.id = parser->at(node.id).parent;
+ }
+ return parent;
+}
+
+QCss::StyleSelector::NodePtr QTextHtmlStyleSelector::duplicateNode(NodePtr node) const
+{
+ return node;
+}
+
+QCss::StyleSelector::NodePtr QTextHtmlStyleSelector::previousSiblingNode(NodePtr node) const
+{
+ NodePtr sibling;
+ sibling.id = 0;
+ if (!node.id)
+ return sibling;
+ int parent = parser->at(node.id).parent;
+ if (!parent)
+ return sibling;
+ const int childIdx = parser->at(parent).children.indexOf(node.id);
+ if (childIdx <= 0)
+ return sibling;
+ sibling.id = parser->at(parent).children.at(childIdx - 1);
+ return sibling;
+}
+
+void QTextHtmlStyleSelector::freeNode(NodePtr) const
+{
+}
+
+void QTextHtmlParser::resolveStyleSheetImports(const QCss::StyleSheet &sheet)
+{
+ for (int i = 0; i < sheet.importRules.count(); ++i) {
+ const QCss::ImportRule &rule = sheet.importRules.at(i);
+ if (rule.media.isEmpty()
+ || rule.media.contains(QLatin1String("screen"), Qt::CaseInsensitive))
+ importStyleSheet(rule.href);
+ }
+}
+
+void QTextHtmlParser::importStyleSheet(const QString &href)
+{
+ if (!resourceProvider)
+ return;
+ for (int i = 0; i < externalStyleSheets.count(); ++i)
+ if (externalStyleSheets.at(i).url == href)
+ return;
+
+ QVariant res = resourceProvider->resource(QTextDocument::StyleSheetResource, href);
+ QString css;
+ if (res.type() == QVariant::String) {
+ css = res.toString();
+ } else if (res.type() == QVariant::ByteArray) {
+ // #### detect @charset
+ css = QString::fromUtf8(res.toByteArray());
+ }
+ if (!css.isEmpty()) {
+ QCss::Parser parser(css);
+ QCss::StyleSheet sheet;
+ parser.parse(&sheet, Qt::CaseInsensitive);
+ externalStyleSheets.append(ExternalStyleSheet(href, sheet));
+ resolveStyleSheetImports(sheet);
+ }
+}
+
+QVector<QCss::Declaration> QTextHtmlParser::declarationsForNode(int node) const
+{
+ QVector<QCss::Declaration> decls;
+
+ QTextHtmlStyleSelector selector(this);
+
+ int idx = 0;
+ selector.styleSheets.resize((resourceProvider ? 1 : 0)
+ + externalStyleSheets.count()
+ + inlineStyleSheets.count());
+ if (resourceProvider)
+ selector.styleSheets[idx++] = resourceProvider->docHandle()->parsedDefaultStyleSheet;
+
+ for (int i = 0; i < externalStyleSheets.count(); ++i, ++idx)
+ selector.styleSheets[idx] = externalStyleSheets.at(i).sheet;
+
+ for (int i = 0; i < inlineStyleSheets.count(); ++i, ++idx)
+ selector.styleSheets[idx] = inlineStyleSheets.at(i);
+
+ selector.medium = QLatin1String("screen");
+
+ QCss::StyleSelector::NodePtr n;
+ n.id = node;
+
+ const char *extraPseudo = 0;
+ if (nodes.at(node).id == Html_a && nodes.at(node).hasHref)
+ extraPseudo = "link";
+ decls = selector.declarationsForNode(n, extraPseudo);
+
+ return decls;
+}
+
+bool QTextHtmlParser::nodeIsChildOf(int i, QTextHTMLElements id) const
+{
+ while (i) {
+ if (at(i).id == id)
+ return true;
+ i = at(i).parent;
+ }
+ return false;
+}
+
+QT_END_NAMESPACE
+#endif // QT_NO_CSSPARSER
+
+#endif // QT_NO_TEXTHTMLPARSER