diff -r 000000000000 -r 4f2f89ce4247 WebCore/svg/SVGTextContentElement.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/svg/SVGTextContentElement.cpp	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,227 @@
+/*
+    Copyright (C) 2004, 2005, 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
+                  2004, 2005, 2006, 2007, 2008 Rob Buis <buis@kde.org>
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public License
+    along with this library; see the file COPYING.LIB.  If not, write to
+    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+    Boston, MA 02110-1301, USA.
+*/
+
+#include "config.h"
+
+#if ENABLE(SVG)
+#include "SVGTextContentElement.h"
+
+#include "CSSPropertyNames.h"
+#include "CSSValueKeywords.h"
+#include "Frame.h"
+#include "SVGTextQuery.h"
+#include "SelectionController.h"
+#include "XMLNames.h"
+
+namespace WebCore {
+
+SVGTextContentElement::SVGTextContentElement(const QualifiedName& tagName, Document* doc)
+    : SVGStyledElement(tagName, doc)
+    , SVGTests()
+    , SVGLangSpace()
+    , SVGExternalResourcesRequired()
+    , m_textLength(LengthModeOther)
+    , m_lengthAdjust(LENGTHADJUST_SPACING)
+{
+}
+
+SVGTextContentElement::~SVGTextContentElement()
+{
+}
+
+unsigned SVGTextContentElement::getNumberOfChars() const
+{
+    document()->updateLayoutIgnorePendingStylesheets();
+    return SVGTextQuery(renderer()).numberOfCharacters();
+}
+
+float SVGTextContentElement::getComputedTextLength() const
+{
+    document()->updateLayoutIgnorePendingStylesheets();
+    return SVGTextQuery(renderer()).textLength();
+}
+
+float SVGTextContentElement::getSubStringLength(unsigned charnum, unsigned nchars, ExceptionCode& ec) const
+{
+    document()->updateLayoutIgnorePendingStylesheets();
+
+    unsigned numberOfChars = getNumberOfChars();
+    if (charnum >= numberOfChars) {
+        ec = INDEX_SIZE_ERR;
+        return 0.0f;
+    }
+
+    return SVGTextQuery(renderer()).subStringLength(charnum, nchars);
+}
+
+FloatPoint SVGTextContentElement::getStartPositionOfChar(unsigned charnum, ExceptionCode& ec) const
+{
+    document()->updateLayoutIgnorePendingStylesheets();
+
+    if (charnum > getNumberOfChars()) {
+        ec = INDEX_SIZE_ERR;
+        return FloatPoint();
+    }
+
+    return SVGTextQuery(renderer()).startPositionOfCharacter(charnum);
+}
+
+FloatPoint SVGTextContentElement::getEndPositionOfChar(unsigned charnum, ExceptionCode& ec) const
+{
+    document()->updateLayoutIgnorePendingStylesheets();
+
+    if (charnum > getNumberOfChars()) {
+        ec = INDEX_SIZE_ERR;
+        return FloatPoint();
+    }
+
+    return SVGTextQuery(renderer()).endPositionOfCharacter(charnum);
+}
+
+FloatRect SVGTextContentElement::getExtentOfChar(unsigned charnum, ExceptionCode& ec) const
+{
+    document()->updateLayoutIgnorePendingStylesheets();
+
+    if (charnum > getNumberOfChars()) {
+        ec = INDEX_SIZE_ERR;
+        return FloatRect();
+    }
+
+    return SVGTextQuery(renderer()).extentOfCharacter(charnum);
+}
+
+float SVGTextContentElement::getRotationOfChar(unsigned charnum, ExceptionCode& ec) const
+{
+    document()->updateLayoutIgnorePendingStylesheets();
+
+    if (charnum > getNumberOfChars()) {
+        ec = INDEX_SIZE_ERR;
+        return 0.0f;
+    }
+
+    return SVGTextQuery(renderer()).rotationOfCharacter(charnum);
+}
+
+int SVGTextContentElement::getCharNumAtPosition(const FloatPoint& point) const
+{
+    document()->updateLayoutIgnorePendingStylesheets();
+    return SVGTextQuery(renderer()).characterNumberAtPosition(point);
+}
+
+void SVGTextContentElement::selectSubString(unsigned charnum, unsigned nchars, ExceptionCode& ec) const
+{
+    unsigned numberOfChars = getNumberOfChars();
+    if (charnum >= numberOfChars) {
+        ec = INDEX_SIZE_ERR;
+        return;
+    }
+
+    if (nchars > numberOfChars - charnum)
+        nchars = numberOfChars - charnum;
+
+    ASSERT(document());
+    ASSERT(document()->frame());
+
+    SelectionController* controller = document()->frame()->selection();
+    if (!controller)
+        return;
+
+    // Find selection start
+    VisiblePosition start(const_cast<SVGTextContentElement*>(this), 0, SEL_DEFAULT_AFFINITY);
+    for (unsigned i = 0; i < charnum; ++i)
+        start = start.next();
+
+    // Find selection end
+    VisiblePosition end(start);
+    for (unsigned i = 0; i < nchars; ++i)
+        end = end.next();
+
+    controller->setSelection(VisibleSelection(start, end));
+}
+
+void SVGTextContentElement::parseMappedAttribute(Attribute* attr)
+{
+    if (attr->name() == SVGNames::lengthAdjustAttr) {
+        if (attr->value() == "spacing")
+            setLengthAdjustBaseValue(LENGTHADJUST_SPACING);
+        else if (attr->value() == "spacingAndGlyphs")
+            setLengthAdjustBaseValue(LENGTHADJUST_SPACINGANDGLYPHS);
+    } else if (attr->name() == SVGNames::textLengthAttr) {
+        setTextLengthBaseValue(SVGLength(LengthModeOther, attr->value()));
+        if (textLengthBaseValue().value(this) < 0.0)
+            document()->accessSVGExtensions()->reportError("A negative value for text attribute <textLength> is not allowed");
+    } else {
+        if (SVGTests::parseMappedAttribute(attr))
+            return;
+        if (SVGLangSpace::parseMappedAttribute(attr)) {
+            if (attr->name().matches(XMLNames::spaceAttr)) {
+                DEFINE_STATIC_LOCAL(const AtomicString, preserveString, ("preserve"));
+
+                if (attr->value() == preserveString)
+                    addCSSProperty(attr, CSSPropertyWhiteSpace, CSSValuePre);
+                else
+                    addCSSProperty(attr, CSSPropertyWhiteSpace, CSSValueNowrap);
+            }
+            return;
+        }
+        if (SVGExternalResourcesRequired::parseMappedAttribute(attr))
+            return;
+
+        SVGStyledElement::parseMappedAttribute(attr);
+    }
+}
+
+void SVGTextContentElement::synchronizeProperty(const QualifiedName& attrName)
+{
+    SVGStyledElement::synchronizeProperty(attrName);
+
+    if (attrName == anyQName()) {
+        synchronizeLengthAdjust();
+        synchronizeTextLength();
+        synchronizeExternalResourcesRequired();
+        return;
+    }
+
+    if (attrName == SVGNames::lengthAdjustAttr)
+        synchronizeLengthAdjust();
+    else if (attrName == SVGNames::textLengthAttr)
+        synchronizeTextLength();
+    else if (SVGExternalResourcesRequired::isKnownAttribute(attrName))
+        synchronizeExternalResourcesRequired();
+}
+
+bool SVGTextContentElement::isKnownAttribute(const QualifiedName& attrName)
+{
+    return (attrName.matches(SVGNames::lengthAdjustAttr) ||
+            attrName.matches(SVGNames::textLengthAttr) ||
+            SVGTests::isKnownAttribute(attrName) ||
+            SVGLangSpace::isKnownAttribute(attrName) ||
+            SVGExternalResourcesRequired::isKnownAttribute(attrName) ||
+            SVGStyledElement::isKnownAttribute(attrName));
+}
+
+bool SVGTextContentElement::selfHasRelativeLengths() const
+{
+    return textLength().isRelative();
+}
+
+}
+
+#endif // ENABLE(SVG)