Merge WebKit at r75315: Initial merge by git.

Change-Id: I570314b346ce101c935ed22a626b48c2af266b84

1 files changed, 263 insertions, 0 deletions

diff --git a/Source/WebCore/svg/SVGTextContentElement.cpp b/Source/WebCore/svg/SVGTextContentElement.cpp
new file mode 100644
index 0000000..de75f5b
--- /dev/null
+++ b/Source/WebCore/svg/SVGTextContentElement.cpp
@@ -0,0 +1,263 @@
+/*
+ * Copyright (C) 2004, 2005, 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
+ * Copyright (C) 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 "RenderObject.h"
+#include "SVGNames.h"
+#include "SVGTextQuery.h"
+#include "SelectionController.h"
+#include "XMLNames.h"
+
+namespace WebCore {
+
+// Animated property definitions
+DEFINE_ANIMATED_LENGTH(SVGTextContentElement, SVGNames::textLengthAttr, TextLength, textLength)
+DEFINE_ANIMATED_ENUMERATION(SVGTextContentElement, SVGNames::lengthAdjustAttr, LengthAdjust, lengthAdjust)
+DEFINE_ANIMATED_BOOLEAN(SVGTextContentElement, SVGNames::externalResourcesRequiredAttr, ExternalResourcesRequired, externalResourcesRequired)
+
+SVGTextContentElement::SVGTextContentElement(const QualifiedName& tagName, Document* document)
+    : SVGStyledElement(tagName, document)
+    , m_textLength(LengthModeOther)
+    , m_lengthAdjust(LENGTHADJUST_SPACING)
+{
+}
+
+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();
+        SVGTests::synchronizeProperties(this, attrName);
+        return;
+    }
+
+    if (attrName == SVGNames::lengthAdjustAttr)
+        synchronizeLengthAdjust();
+    else if (attrName == SVGNames::textLengthAttr)
+        synchronizeTextLength();
+    else if (SVGExternalResourcesRequired::isKnownAttribute(attrName))
+        synchronizeExternalResourcesRequired();
+    else if (SVGTests::isKnownAttribute(attrName))
+        SVGTests::synchronizeProperties(this, attrName);
+}
+
+void SVGTextContentElement::svgAttributeChanged(const QualifiedName& attrName)
+{
+    SVGStyledElement::svgAttributeChanged(attrName);
+
+    if (SVGTests::handleAttributeChange(this, attrName))
+        return;
+
+    // FIXME: also handle attribute changes for lengthAdjust and textLength
+}
+
+bool SVGTextContentElement::isKnownAttribute(const QualifiedName& attrName)
+{
+    return attrName.matches(SVGNames::lengthAdjustAttr)
+            || attrName.matches(SVGNames::textLengthAttr)
+            || SVGLangSpace::isKnownAttribute(attrName)
+            || SVGExternalResourcesRequired::isKnownAttribute(attrName)
+            || SVGStyledElement::isKnownAttribute(attrName);
+}
+
+bool SVGTextContentElement::selfHasRelativeLengths() const
+{
+    return textLength().isRelative();
+}
+
+SVGTextContentElement* SVGTextContentElement::elementFromRenderer(RenderObject* renderer)
+{
+    if (!renderer)
+        return 0;
+
+    if (!renderer->isSVGText() && !renderer->isSVGInline())
+        return 0;
+
+    Node* node = renderer->node();
+    ASSERT(node);
+    ASSERT(node->isSVGElement());
+
+    if (!node->hasTagName(SVGNames::textTag)
+        && !node->hasTagName(SVGNames::tspanTag)
+#if ENABLE(SVG_FONTS)
+        && !node->hasTagName(SVGNames::altGlyphTag)
+#endif
+        && !node->hasTagName(SVGNames::trefTag)
+        && !node->hasTagName(SVGNames::textPathTag))
+        return 0;
+
+    return static_cast<SVGTextContentElement*>(node);
+}
+
+}
+
+#endif // ENABLE(SVG)