Merge WebKit at r75315: Initial merge by git.

Change-Id: I570314b346ce101c935ed22a626b48c2af266b84

1 files changed, 273 insertions, 0 deletions

diff --git a/Source/WebCore/svg/SVGPatternElement.cpp b/Source/WebCore/svg/SVGPatternElement.cpp
new file mode 100644
index 0000000..29723e7
--- /dev/null
+++ b/Source/WebCore/svg/SVGPatternElement.cpp
@@ -0,0 +1,273 @@
+/*
+ * Copyright (C) 2004, 2005, 2006, 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
+ * Copyright (C) 2004, 2005, 2006, 2007 Rob Buis <buis@kde.org>
+ * Copyright (C) Research In Motion Limited 2010. All rights reserved.
+ *
+ * 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 "SVGPatternElement.h"
+
+#include "AffineTransform.h"
+#include "Attribute.h"
+#include "Document.h"
+#include "FloatConversion.h"
+#include "GraphicsContext.h"
+#include "ImageBuffer.h"
+#include "PatternAttributes.h"
+#include "RenderSVGContainer.h"
+#include "RenderSVGResourcePattern.h"
+#include "SVGNames.h"
+#include "SVGRenderSupport.h"
+#include "SVGSVGElement.h"
+#include "SVGStyledTransformableElement.h"
+#include "SVGTransformable.h"
+#include "SVGUnitTypes.h"
+
+namespace WebCore {
+
+// Animated property definitions
+DEFINE_ANIMATED_LENGTH(SVGPatternElement, SVGNames::xAttr, X, x)
+DEFINE_ANIMATED_LENGTH(SVGPatternElement, SVGNames::yAttr, Y, y)
+DEFINE_ANIMATED_LENGTH(SVGPatternElement, SVGNames::widthAttr, Width, width)
+DEFINE_ANIMATED_LENGTH(SVGPatternElement, SVGNames::heightAttr, Height, height)
+DEFINE_ANIMATED_ENUMERATION(SVGPatternElement, SVGNames::patternUnitsAttr, PatternUnits, patternUnits)
+DEFINE_ANIMATED_ENUMERATION(SVGPatternElement, SVGNames::patternContentUnitsAttr, PatternContentUnits, patternContentUnits)
+DEFINE_ANIMATED_TRANSFORM_LIST(SVGPatternElement, SVGNames::patternTransformAttr, PatternTransform, patternTransform) 
+DEFINE_ANIMATED_STRING(SVGPatternElement, XLinkNames::hrefAttr, Href, href)
+DEFINE_ANIMATED_BOOLEAN(SVGPatternElement, SVGNames::externalResourcesRequiredAttr, ExternalResourcesRequired, externalResourcesRequired)
+DEFINE_ANIMATED_RECT(SVGPatternElement, SVGNames::viewBoxAttr, ViewBox, viewBox)
+DEFINE_ANIMATED_PRESERVEASPECTRATIO(SVGPatternElement, SVGNames::preserveAspectRatioAttr, PreserveAspectRatio, preserveAspectRatio) 
+
+inline SVGPatternElement::SVGPatternElement(const QualifiedName& tagName, Document* document)
+    : SVGStyledElement(tagName, document)
+    , m_x(LengthModeWidth)
+    , m_y(LengthModeHeight)
+    , m_width(LengthModeWidth)
+    , m_height(LengthModeHeight)
+    , m_patternUnits(SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX)
+    , m_patternContentUnits(SVGUnitTypes::SVG_UNIT_TYPE_USERSPACEONUSE)
+{
+}
+
+PassRefPtr<SVGPatternElement> SVGPatternElement::create(const QualifiedName& tagName, Document* document)
+{
+    return adoptRef(new SVGPatternElement(tagName, document));
+}
+
+void SVGPatternElement::parseMappedAttribute(Attribute* attr)
+{
+    if (attr->name() == SVGNames::patternUnitsAttr) {
+        if (attr->value() == "userSpaceOnUse")
+            setPatternUnitsBaseValue(SVGUnitTypes::SVG_UNIT_TYPE_USERSPACEONUSE);
+        else if (attr->value() == "objectBoundingBox")
+            setPatternUnitsBaseValue(SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX);
+    } else if (attr->name() == SVGNames::patternContentUnitsAttr) {
+        if (attr->value() == "userSpaceOnUse")
+            setPatternContentUnitsBaseValue(SVGUnitTypes::SVG_UNIT_TYPE_USERSPACEONUSE);
+        else if (attr->value() == "objectBoundingBox")
+            setPatternContentUnitsBaseValue(SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX);
+    } else if (attr->name() == SVGNames::patternTransformAttr) {
+        SVGTransformList newList;
+        if (!SVGTransformable::parseTransformAttribute(newList, attr->value()))
+            newList.clear();
+
+        detachAnimatedPatternTransformListWrappers(newList.size());
+        setPatternTransformBaseValue(newList);
+    } else if (attr->name() == SVGNames::xAttr)
+        setXBaseValue(SVGLength(LengthModeWidth, attr->value()));
+    else if (attr->name() == SVGNames::yAttr)
+        setYBaseValue(SVGLength(LengthModeHeight, attr->value()));
+    else if (attr->name() == SVGNames::widthAttr) {
+        setWidthBaseValue(SVGLength(LengthModeWidth, attr->value()));
+        if (widthBaseValue().value(this) < 0.0)
+            document()->accessSVGExtensions()->reportError("A negative value for pattern attribute <width> is not allowed");
+    } else if (attr->name() == SVGNames::heightAttr) {
+        setHeightBaseValue(SVGLength(LengthModeHeight, attr->value()));
+        if (heightBaseValue().value(this) < 0.0)
+            document()->accessSVGExtensions()->reportError("A negative value for pattern attribute <height> is not allowed");
+    } else {
+        if (SVGURIReference::parseMappedAttribute(attr))
+            return;
+        if (SVGTests::parseMappedAttribute(attr))
+            return;
+        if (SVGLangSpace::parseMappedAttribute(attr))
+            return;
+        if (SVGExternalResourcesRequired::parseMappedAttribute(attr))
+            return;
+        if (SVGFitToViewBox::parseMappedAttribute(document(), attr))
+            return;
+
+        SVGStyledElement::parseMappedAttribute(attr);
+    }
+}
+
+void SVGPatternElement::svgAttributeChanged(const QualifiedName& attrName)
+{
+    SVGStyledElement::svgAttributeChanged(attrName);
+
+    bool invalidateClients = false;
+    if (attrName == SVGNames::xAttr
+        || attrName == SVGNames::yAttr
+        || attrName == SVGNames::widthAttr
+        || attrName == SVGNames::heightAttr) {
+        invalidateClients = true;
+        updateRelativeLengthsInformation();
+    }
+
+    RenderObject* object = renderer();
+    if (!object)
+        return;
+
+    if (invalidateClients
+        || attrName == SVGNames::patternUnitsAttr
+        || attrName == SVGNames::patternContentUnitsAttr
+        || attrName == SVGNames::patternTransformAttr
+        || SVGURIReference::isKnownAttribute(attrName)
+        || SVGTests::isKnownAttribute(attrName)
+        || SVGLangSpace::isKnownAttribute(attrName)
+        || SVGExternalResourcesRequired::isKnownAttribute(attrName)
+        || SVGFitToViewBox::isKnownAttribute(attrName)
+        || SVGStyledElement::isKnownAttribute(attrName))
+        object->setNeedsLayout(true);
+}
+
+void SVGPatternElement::synchronizeProperty(const QualifiedName& attrName)
+{
+    SVGStyledElement::synchronizeProperty(attrName);
+
+    if (attrName == anyQName()) {
+        synchronizePatternUnits();
+        synchronizePatternContentUnits();
+        synchronizePatternTransform();
+        synchronizeX();
+        synchronizeY();
+        synchronizeWidth();
+        synchronizeHeight();
+        synchronizeExternalResourcesRequired();
+        synchronizeViewBox();
+        synchronizePreserveAspectRatio();
+        synchronizeHref();
+        SVGTests::synchronizeProperties(this, attrName);
+        return;
+    }
+
+    if (attrName == SVGNames::patternUnitsAttr)
+        synchronizePatternUnits();
+    else if (attrName == SVGNames::patternContentUnitsAttr)
+        synchronizePatternContentUnits();
+    else if (attrName == SVGNames::patternTransformAttr)
+        synchronizePatternTransform();
+    else if (attrName == SVGNames::xAttr)
+        synchronizeX();
+    else if (attrName == SVGNames::yAttr)
+        synchronizeY();
+    else if (attrName == SVGNames::widthAttr)
+        synchronizeWidth();
+    else if (attrName == SVGNames::heightAttr)
+        synchronizeHeight();
+    else if (SVGExternalResourcesRequired::isKnownAttribute(attrName))
+        synchronizeExternalResourcesRequired();
+    else if (attrName == SVGNames::viewBoxAttr)
+        synchronizeViewBox();
+    else if (attrName == SVGNames::preserveAspectRatioAttr)
+        synchronizePreserveAspectRatio();
+    else if (SVGURIReference::isKnownAttribute(attrName))
+        synchronizeHref();
+    else if (SVGTests::isKnownAttribute(attrName))
+        SVGTests::synchronizeProperties(this, attrName);
+}
+
+void SVGPatternElement::childrenChanged(bool changedByParser, Node* beforeChange, Node* afterChange, int childCountDelta)
+{
+    SVGStyledElement::childrenChanged(changedByParser, beforeChange, afterChange, childCountDelta);
+
+    if (changedByParser)
+        return;
+
+    if (RenderObject* object = renderer())
+        object->setNeedsLayout(true);
+}
+
+RenderObject* SVGPatternElement::createRenderer(RenderArena* arena, RenderStyle*)
+{
+    return new (arena) RenderSVGResourcePattern(this);
+}
+
+void SVGPatternElement::collectPatternAttributes(PatternAttributes& attributes) const
+{
+    HashSet<const SVGPatternElement*> processedPatterns;
+
+    const SVGPatternElement* current = this;
+    while (current) {
+        if (!attributes.hasX() && current->hasAttribute(SVGNames::xAttr))
+            attributes.setX(current->x());
+
+        if (!attributes.hasY() && current->hasAttribute(SVGNames::yAttr))
+            attributes.setY(current->y());
+
+        if (!attributes.hasWidth() && current->hasAttribute(SVGNames::widthAttr))
+            attributes.setWidth(current->width());
+
+        if (!attributes.hasHeight() && current->hasAttribute(SVGNames::heightAttr))
+            attributes.setHeight(current->height());
+
+        if (!attributes.hasBoundingBoxMode() && current->hasAttribute(SVGNames::patternUnitsAttr))
+            attributes.setBoundingBoxMode(current->patternUnits() == SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX);
+
+        if (!attributes.hasBoundingBoxModeContent() && current->hasAttribute(SVGNames::patternContentUnitsAttr))
+            attributes.setBoundingBoxModeContent(current->patternContentUnits() == SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX);
+
+        if (!attributes.hasPatternTransform() && current->hasAttribute(SVGNames::patternTransformAttr)) {
+            AffineTransform transform;
+            current->patternTransform().concatenate(transform);
+            attributes.setPatternTransform(transform);
+        }
+
+        if (!attributes.hasPatternContentElement() && current->hasChildNodes())
+            attributes.setPatternContentElement(current);
+
+        processedPatterns.add(current);
+
+        // Respect xlink:href, take attributes from referenced element
+        Node* refNode = ownerDocument()->getElementById(SVGURIReference::getTarget(current->href()));
+        if (refNode && refNode->hasTagName(SVGNames::patternTag)) {
+            current = static_cast<const SVGPatternElement*>(const_cast<const Node*>(refNode));
+
+            // Cycle detection
+            if (processedPatterns.contains(current)) {
+                current = 0;
+                break;
+            }
+        } else
+            current = 0;
+    }
+}
+
+bool SVGPatternElement::selfHasRelativeLengths() const
+{
+    return x().isRelative()
+        || y().isRelative()
+        || width().isRelative()
+        || height().isRelative();
+}
+
+}
+
+#endif // ENABLE(SVG)