1 files changed, 128 insertions, 0 deletions
diff --git a/Source/WebCore/svg/SVGUseElement.h b/Source/WebCore/svg/SVGUseElement.h
new file mode 100644
index 0000000..c1095ed
--- /dev/null
+++ b/Source/WebCore/svg/SVGUseElement.h
@@ -0,0 +1,128 @@
+/*
+ * Copyright (C) 2004, 2005, 2006, 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
+ * Copyright (C) 2004, 2005, 2006, 2007 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.
+ */
+
+#ifndef SVGUseElement_h
+#define SVGUseElement_h
+
+#if ENABLE(SVG)
+#include "SVGAnimatedBoolean.h"
+#include "SVGAnimatedLength.h"
+#include "SVGExternalResourcesRequired.h"
+#include "SVGLangSpace.h"
+#include "SVGStyledTransformableElement.h"
+#include "SVGTests.h"
+#include "SVGURIReference.h"
+
+namespace WebCore {
+
+class SVGElementInstance;
+class SVGShadowTreeRootElement;
+
+class SVGUseElement : public SVGStyledTransformableElement,
+                      public SVGTests,
+                      public SVGLangSpace,
+                      public SVGExternalResourcesRequired,
+                      public SVGURIReference {
+public:
+    static PassRefPtr<SVGUseElement> create(const QualifiedName&, Document*);
+
+    SVGElementInstance* instanceRoot() const;
+    SVGElementInstance* animatedInstanceRoot() const;
+    SVGElementInstance* instanceForShadowTreeElement(Node*) const;
+    void invalidateShadowTree();
+
+    RenderObject* rendererClipChild() const;
+
+private:
+    SVGUseElement(const QualifiedName&, Document*);
+
+    virtual bool isValid() const { return SVGTests::isValid(); }
+
+    virtual void insertedIntoDocument();
+    virtual void removedFromDocument();
+    virtual void buildPendingResource();
+
+    virtual void parseMappedAttribute(Attribute*);
+    virtual void svgAttributeChanged(const QualifiedName&);
+    virtual void synchronizeProperty(const QualifiedName&);
+
+    virtual void recalcStyle(StyleChange = NoChange);
+    virtual RenderObject* createRenderer(RenderArena*, RenderStyle*);
+    virtual void attach();
+    virtual void detach();
+
+    virtual void toClipPath(Path&) const;
+
+    static void removeDisallowedElementsFromSubtree(Node* element);
+
+    void setUpdatesBlocked(bool blocked) { m_updatesBlocked = blocked; }
+
+    friend class RenderSVGShadowTreeRootContainer;
+    bool isPendingResource() const { return m_isPendingResource; }
+    void buildShadowAndInstanceTree(SVGShadowTreeRootElement*);
+    void detachInstance();
+
+    virtual bool selfHasRelativeLengths() const;
+
+    // Instance tree handling
+    void buildInstanceTree(SVGElement* target, SVGElementInstance* targetInstance, bool& foundCycle);
+    bool hasCycleUseReferencing(SVGUseElement*, SVGElementInstance* targetInstance, SVGElement*& newTarget);
+
+    // Shadow tree handling
+    void buildShadowTree(SVGShadowTreeRootElement*, SVGElement* target, SVGElementInstance* targetInstance);
+
+#if ENABLE(SVG) && ENABLE(SVG_USE)
+    void expandUseElementsInShadowTree(SVGShadowTreeRootElement*, Node* element);
+    void expandSymbolElementsInShadowTree(SVGShadowTreeRootElement*, Node* element);
+#endif
+
+    // "Tree connector" 
+    void associateInstancesWithShadowTreeElements(Node* target, SVGElementInstance* targetInstance);
+    SVGElementInstance* instanceForShadowTreeElement(Node* element, SVGElementInstance* instance) const;
+
+    void transferUseAttributesToReplacedElement(SVGElement* from, SVGElement* to) const;
+    void transferEventListenersToShadowTree(SVGElementInstance* target);
+
+    void updateContainerOffsets();
+    void updateContainerSizes();
+
+    // Animated property declarations
+    DECLARE_ANIMATED_LENGTH(X, x)
+    DECLARE_ANIMATED_LENGTH(Y, y)
+    DECLARE_ANIMATED_LENGTH(Width, width)
+    DECLARE_ANIMATED_LENGTH(Height, height)
+
+    // SVGURIReference
+    DECLARE_ANIMATED_STRING(Href, href)
+
+    // SVGExternalResourcesRequired
+    DECLARE_ANIMATED_BOOLEAN(ExternalResourcesRequired, externalResourcesRequired)
+
+    bool m_updatesBlocked;
+    bool m_isPendingResource;
+    bool m_needsShadowTreeRecreation;
+    String m_resourceId;
+    RefPtr<SVGElementInstance> m_targetElementInstance;
+};
+
+}
+
+#endif
+#endif