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Diffstat (limited to 'webkit/pending/Node.h')
| -rw-r--r-- | webkit/pending/Node.h | 549 |
1 files changed, 0 insertions, 549 deletions
diff --git a/webkit/pending/Node.h b/webkit/pending/Node.h deleted file mode 100644 index 81e4e3c..0000000 --- a/webkit/pending/Node.h +++ /dev/null @@ -1,549 +0,0 @@ -/* - * Copyright (C) 1999 Lars Knoll (knoll@kde.org) - * (C) 1999 Antti Koivisto (koivisto@kde.org) - * (C) 2001 Dirk Mueller (mueller@kde.org) - * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. 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. - * - */ - -#ifndef Node_h -#define Node_h - -#include "DocPtr.h" -#include "PlatformString.h" -#include "TreeShared.h" -#include <wtf/Assertions.h> -#include <wtf/HashSet.h> -#include <wtf/OwnPtr.h> -#include <wtf/PassRefPtr.h> - -namespace WebCore { - -class AtomicString; -class ContainerNode; -class Document; -class DynamicNodeList; -class Element; -class Event; -class EventListener; -class IntRect; -class KURL; -class KeyboardEvent; -class NSResolver; -class NamedAttrMap; -class NodeList; -class PlatformKeyboardEvent; -class PlatformMouseEvent; -class PlatformWheelEvent; -class QualifiedName; -class RegisteredEventListener; -class RenderArena; -class RenderObject; -class RenderStyle; -class StringBuilder; -class ExceptionContext; - -struct NodeListsNodeData; - -typedef int ExceptionCode; - -enum StyleChangeType { NoStyleChange, InlineStyleChange, FullStyleChange, AnimationStyleChange }; - -const unsigned short DOCUMENT_POSITION_EQUIVALENT = 0x00; -const unsigned short DOCUMENT_POSITION_DISCONNECTED = 0x01; -const unsigned short DOCUMENT_POSITION_PRECEDING = 0x02; -const unsigned short DOCUMENT_POSITION_FOLLOWING = 0x04; -const unsigned short DOCUMENT_POSITION_CONTAINS = 0x08; -const unsigned short DOCUMENT_POSITION_CONTAINED_BY = 0x10; -const unsigned short DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC = 0x20; - -// this class implements nodes, which can have a parent but no children: -class Node : public TreeShared<Node> { - friend class Document; -public: - enum NodeType { - ELEMENT_NODE = 1, - ATTRIBUTE_NODE = 2, - TEXT_NODE = 3, - CDATA_SECTION_NODE = 4, - ENTITY_REFERENCE_NODE = 5, - ENTITY_NODE = 6, - PROCESSING_INSTRUCTION_NODE = 7, - COMMENT_NODE = 8, - DOCUMENT_NODE = 9, - DOCUMENT_TYPE_NODE = 10, - DOCUMENT_FRAGMENT_NODE = 11, - NOTATION_NODE = 12, - XPATH_NAMESPACE_NODE = 13 - }; - - static bool isSupported(const String& feature, const String& version); - - static void startIgnoringLeaks(); - static void stopIgnoringLeaks(); - - enum StyleChange { NoChange, NoInherit, Inherit, Detach, Force }; - static StyleChange diff(RenderStyle*, RenderStyle*); - - Node(Document*, bool isElement = false); - virtual ~Node(); - - // DOM methods & attributes for Node - - bool hasTagName(const QualifiedName& name) const { return virtualHasTagName(name); } - virtual String nodeName() const = 0; - virtual String nodeValue() const; - virtual void setNodeValue(const String&, ExceptionCode&); - virtual NodeType nodeType() const = 0; - Node* parentNode() const { return parent(); } - Node* parentElement() const { return parent(); } // IE extension - Node* previousSibling() const { return m_previous; } - Node* nextSibling() const { return m_next; } - virtual PassRefPtr<NodeList> childNodes(); - Node* firstChild() const { return virtualFirstChild(); } - Node* lastChild() const { return virtualLastChild(); } - virtual bool hasAttributes() const; - virtual NamedAttrMap* attributes() const; - - virtual KURL baseURI() const; - - void getSubresourceURLs(Vector<KURL>&) const; - - // These should all actually return a node, but this is only important for language bindings, - // which will already know and hold a ref on the right node to return. Returning bool allows - // these methods to be more efficient since they don't need to return a ref - virtual bool insertBefore(PassRefPtr<Node> newChild, Node* refChild, ExceptionCode&, bool shouldLazyAttach = false); - virtual bool replaceChild(PassRefPtr<Node> newChild, Node* oldChild, ExceptionCode&, bool shouldLazyAttach = false); - virtual bool removeChild(Node* child, ExceptionCode&); - virtual bool appendChild(PassRefPtr<Node> newChild, ExceptionCode&, bool shouldLazyAttach = false); - - virtual void remove(ExceptionCode&); - bool hasChildNodes() const { return firstChild(); } - virtual PassRefPtr<Node> cloneNode(bool deep) = 0; - virtual const AtomicString& localName() const; - virtual const AtomicString& namespaceURI() const; - virtual const AtomicString& prefix() const; - virtual void setPrefix(const AtomicString&, ExceptionCode&); - void normalize(); - - bool isSameNode(Node* other) const { return this == other; } - bool isEqualNode(Node*) const; - bool isDefaultNamespace(const String& namespaceURI) const; - String lookupPrefix(const String& namespaceURI) const; - String lookupNamespaceURI(const String& prefix) const; - String lookupNamespacePrefix(const String& namespaceURI, const Element* originalElement) const; - - String textContent(bool convertBRsToNewlines = false) const; - void setTextContent(const String&, ExceptionCode&); - - Node* lastDescendant() const; - Node* firstDescendant() const; - - // Other methods (not part of DOM) - - bool isElementNode() const { return m_isElement; } - virtual bool isHTMLElement() const { return false; } - -#if ENABLE(SVG) - virtual -#endif - bool isSVGElement() const { return false; } - - virtual bool isStyledElement() const { return false; } - virtual bool isFrameOwnerElement() const { return false; } - virtual bool isAttributeNode() const { return false; } - virtual bool isTextNode() const { return false; } - virtual bool isCommentNode() const { return false; } - virtual bool isCharacterDataNode() const { return false; } - virtual bool isDocumentNode() const { return false; } - virtual bool isEventTargetNode() const { return false; } - virtual bool isShadowNode() const { return false; } - virtual Node* shadowParentNode() { return 0; } - Node* shadowAncestorNode(); - Node* shadowTreeRootNode(); - bool isInShadowTree(); - - // The node's parent for the purpose of event capture and bubbling. - virtual Node* eventParentNode() { return parentNode(); } - - bool isBlockFlow() const; - bool isBlockFlowOrBlockTable() const; - - // Used by <form> elements to indicate a malformed state of some kind, typically - // used to keep from applying the bottom margin of the form. - virtual bool isMalformed() { return false; } - virtual void setMalformed(bool malformed) { } - - // These low-level calls give the caller responsibility for maintaining the integrity of the tree. - void setPreviousSibling(Node* previous) { m_previous = previous; } - void setNextSibling(Node* next) { m_next = next; } - - // FIXME: These two functions belong in editing -- "atomic node" is an editing concept. - Node* previousNodeConsideringAtomicNodes() const; - Node* nextNodeConsideringAtomicNodes() const; - - /** (Not part of the official DOM) - * Returns the next leaf node. - * - * Using this function delivers leaf nodes as if the whole DOM tree were a linear chain of its leaf nodes. - * @return next leaf node or 0 if there are no more. - */ - Node* nextLeafNode() const; - - /** (Not part of the official DOM) - * Returns the previous leaf node. - * - * Using this function delivers leaf nodes as if the whole DOM tree were a linear chain of its leaf nodes. - * @return previous leaf node or 0 if there are no more. - */ - Node* previousLeafNode() const; - - bool isEditableBlock() const; - - // enclosingBlockFlowElement() is deprecated. Use enclosingBlock instead. - Element* enclosingBlockFlowElement() const; - - Element* enclosingInlineElement() const; - Element* rootEditableElement() const; - - bool inSameContainingBlockFlowElement(Node*); - - // Used by the parser. Checks against the DTD, unlike DOM operations like appendChild(). - // Also does not dispatch DOM mutation events. - // Returns the appropriate container node for future insertions as you parse, or 0 for failure. - virtual ContainerNode* addChild(PassRefPtr<Node>); - - // Called by the parser when this element's close tag is reached, - // signalling that all child tags have been parsed and added. - // This is needed for <applet> and <object> elements, which can't lay themselves out - // until they know all of their nested <param>s. [Radar 3603191, 4040848]. - // Also used for script elements and some SVG elements for similar purposes, - // but making parsing a special case in this respect should be avoided if possible. - virtual void finishParsingChildren() { } - virtual void beginParsingChildren() { } - - // Called by the frame right before dispatching an unloadEvent. [Radar 4532113] - // This is needed for HTMLInputElements to tell the frame that it is done editing - // (sends textFieldDidEndEditing notification) - virtual void aboutToUnload() { } - - // For <link> and <style> elements. - virtual bool sheetLoaded() { return true; } - - bool hasID() const { return m_hasId; } - bool hasClass() const { return m_hasClass; } - bool active() const { return m_active; } - bool inActiveChain() const { return m_inActiveChain; } - bool inDetach() const { return m_inDetach; } - bool hovered() const { return m_hovered; } - bool focused() const { return m_focused; } - bool attached() const { return m_attached; } - void setAttached(bool b = true) { m_attached = b; } - bool changed() const { return m_styleChange != NoStyleChange; } - StyleChangeType styleChangeType() const { return static_cast<StyleChangeType>(m_styleChange); } - bool hasChangedChild() const { return m_hasChangedChild; } - bool isLink() const { return m_isLink; } - void setHasID(bool b = true) { m_hasId = b; } - void setHasClass(bool b = true) { m_hasClass = b; } - void setHasChangedChild( bool b = true ) { m_hasChangedChild = b; } - void setInDocument(bool b = true) { m_inDocument = b; } - void setInActiveChain(bool b = true) { m_inActiveChain = b; } - void setChanged(StyleChangeType changeType = FullStyleChange); - void setIsLink(bool b = true) { m_isLink = b; } - - bool inSubtreeMark() const { return m_inSubtreeMark; } - void setInSubtreeMark(bool b = true) { m_inSubtreeMark = b; } - - void lazyAttach(); - virtual bool canLazyAttach(); - - virtual void setFocus(bool b = true) { m_focused = b; } - virtual void setActive(bool b = true, bool pause=false) { m_active = b; } - virtual void setHovered(bool b = true) { m_hovered = b; } - - virtual short tabIndex() const { return m_tabIndex; } - - /** - * Whether this node can receive the keyboard focus. - */ - virtual bool supportsFocus() const { return isFocusable(); } - virtual bool isFocusable() const; - virtual bool isKeyboardFocusable(KeyboardEvent*) const; - virtual bool isMouseFocusable() const; - - virtual bool isControl() const { return false; } // Eventually the notion of what is a control will be extensible. - virtual bool isEnabled() const { return true; } - virtual bool isChecked() const { return false; } - virtual bool isIndeterminate() const { return false; } - virtual bool isReadOnlyControl() const { return false; } - virtual bool isTextControl() const { return false; } - - virtual bool isContentEditable() const; - virtual bool isContentRichlyEditable() const; - virtual bool shouldUseInputMethod() const; - virtual IntRect getRect() const; - - virtual void recalcStyle(StyleChange = NoChange) { } - - unsigned nodeIndex() const; - - // Returns the DOM ownerDocument attribute. This method never returns NULL, except in the case - // of (1) a Document node or (2) a DocumentType node that is not used with any Document yet. - virtual Document* ownerDocument() const; - - // Returns the document associated with this node. This method never returns NULL, except in the case - // of a DocumentType node that is not used with any Document yet. A Document node returns itself. - Document* document() const - { - ASSERT(this); - ASSERT(m_document || nodeType() == DOCUMENT_TYPE_NODE && !inDocument()); - return m_document.get(); - } - void setDocument(Document*); - - // Returns true if this node is associated with a document and is in its associated document's - // node tree, false otherwise. - bool inDocument() const - { - ASSERT(m_document || !m_inDocument); - return m_inDocument; - } - - bool isReadOnlyNode() const { return nodeType() == ENTITY_REFERENCE_NODE; } - virtual bool childTypeAllowed(NodeType) { return false; } - virtual unsigned childNodeCount() const; - virtual Node* childNode(unsigned index) const; - - /** - * Does a pre-order traversal of the tree to find the node next node after this one. This uses the same order that - * the tags appear in the source file. - * - * @param stayWithin If not null, the traversal will stop once the specified node is reached. This can be used to - * restrict traversal to a particular sub-tree. - * - * @return The next node, in document order - * - * see @ref traversePreviousNode() - */ - Node* traverseNextNode(const Node* stayWithin = 0) const; - - // Like traverseNextNode, but skips children and starts with the next sibling. - Node* traverseNextSibling(const Node* stayWithin = 0) const; - - /** - * Does a reverse pre-order traversal to find the node that comes before the current one in document order - * - * see @ref traverseNextNode() - */ - Node* traversePreviousNode(const Node * stayWithin = 0) const; - - // Like traverseNextNode, but visits parents after their children. - Node* traverseNextNodePostOrder() const; - - // Like traversePreviousNode, but visits parents before their children. - Node* traversePreviousNodePostOrder(const Node *stayWithin = 0) const; - Node* traversePreviousSiblingPostOrder(const Node *stayWithin = 0) const; - - /** - * Finds previous or next editable leaf node. - */ - Node* previousEditable() const; - Node* nextEditable() const; - - RenderObject* renderer() const { return m_renderer; } - RenderObject* nextRenderer(); - RenderObject* previousRenderer(); - void setRenderer(RenderObject* renderer) { m_renderer = renderer; } - - void checkSetPrefix(const AtomicString& prefix, ExceptionCode&); - bool isDescendantOf(const Node*) const; - - // These two methods are mutually exclusive. The former is used to do strict error-checking - // when adding children via the public DOM API (e.g., appendChild()). The latter is called only when parsing, - // to sanity-check against the DTD for error recovery. - void checkAddChild(Node* newChild, ExceptionCode&); // Error-checking when adding via the DOM API - virtual bool childAllowed(Node* newChild); // Error-checking during parsing that checks the DTD - - void checkReplaceChild(Node* newChild, Node* oldChild, ExceptionCode&); - virtual bool canReplaceChild(Node* newChild, Node* oldChild); - - // Used to determine whether range offsets use characters or node indices. - virtual bool offsetInCharacters() const; - // Number of DOM 16-bit units contained in node. Note that rendered text length can be different - e.g. because of - // css-transform:capitalize breaking up precomposed characters and ligatures. - virtual int maxCharacterOffset() const; - - // FIXME: We should try to find a better location for these methods. - virtual bool canSelectAll() const { return false; } - virtual void selectAll() { } - - // Whether or not a selection can be started in this object - virtual bool canStartSelection() const; - - // ----------------------------------------------------------------------------- - // Integration with rendering tree - - /** - * Attaches this node to the rendering tree. This calculates the style to be applied to the node and creates an - * appropriate RenderObject which will be inserted into the tree (except when the style has display: none). This - * makes the node visible in the FrameView. - */ - virtual void attach(); - - /** - * Detaches the node from the rendering tree, making it invisible in the rendered view. This method will remove - * the node's rendering object from the rendering tree and delete it. - */ - virtual void detach(); - - virtual void willRemove(); - void createRendererIfNeeded(); - virtual RenderStyle* styleForRenderer(RenderObject* parent); - virtual bool rendererIsNeeded(RenderStyle*); -#if ENABLE(SVG) - virtual bool childShouldCreateRenderer(Node*) const { return true; } -#endif - virtual RenderObject* createRenderer(RenderArena*, RenderStyle*); - - // Wrapper for nodes that don't have a renderer, but still cache the style (like HTMLOptionElement). - virtual RenderStyle* renderStyle() const; - virtual void setRenderStyle(RenderStyle*); - - virtual RenderStyle* computedStyle(); - - // ----------------------------------------------------------------------------- - // Notification of document structure changes - - /** - * Notifies the node that it has been inserted into the document. This is called during document parsing, and also - * when a node is added through the DOM methods insertBefore(), appendChild() or replaceChild(). Note that this only - * happens when the node becomes part of the document tree, i.e. only when the document is actually an ancestor of - * the node. The call happens _after_ the node has been added to the tree. - * - * This is similar to the DOMNodeInsertedIntoDocument DOM event, but does not require the overhead of event - * dispatching. - */ - virtual void insertedIntoDocument(); - - /** - * Notifies the node that it is no longer part of the document tree, i.e. when the document is no longer an ancestor - * node. - * - * This is similar to the DOMNodeRemovedFromDocument DOM event, but does not require the overhead of event - * dispatching, and is called _after_ the node is removed from the tree. - */ - virtual void removedFromDocument(); - - // These functions are called whenever you are connected or disconnected from a tree. That tree may be the main - // document tree, or it could be another disconnected tree. Override these functions to do any work that depends - // on connectedness to some ancestor (e.g., an ancestor <form> for example). - virtual void insertedIntoTree(bool deep) { } - virtual void removedFromTree(bool deep) { } - - /** - * Notifies the node that it's list of children have changed (either by adding or removing child nodes), or a child - * node that is of the type CDATA_SECTION_NODE, TEXT_NODE or COMMENT_NODE has changed its value. - */ - virtual void childrenChanged(bool changedByParser = false, Node* beforeChange = 0, Node* afterChange = 0, int childCountDelta = 0) {}; - -#ifndef NDEBUG - virtual void formatForDebugger(char* buffer, unsigned length) const; - - void showNode(const char* prefix = "") const; - void showTreeForThis() const; - void showTreeAndMark(const Node* markedNode1, const char* markedLabel1, const Node* markedNode2 = 0, const char* markedLabel2 = 0) const; -#endif - - void registerDynamicNodeList(DynamicNodeList*); - void unregisterDynamicNodeList(DynamicNodeList*); - void notifyNodeListsChildrenChanged(); - void notifyLocalNodeListsChildrenChanged(); - void notifyNodeListsAttributeChanged(); - void notifyLocalNodeListsAttributeChanged(); - - PassRefPtr<NodeList> getElementsByTagName(const String&); - PassRefPtr<NodeList> getElementsByTagNameNS(const String& namespaceURI, const String& localName); - PassRefPtr<NodeList> getElementsByName(const String& elementName); - PassRefPtr<NodeList> getElementsByClassName(const String& classNames); - - PassRefPtr<Element> querySelector(const String& selectors, NSResolver*, ExceptionCode&, ExceptionContext*); - PassRefPtr<NodeList> querySelectorAll(const String& selectors, NSResolver*, ExceptionCode&, ExceptionContext*); - // For non-JS bindings. Silently ignores the JavaScript exception if any. - // FIXME: We should support the NSResolver interface for non-JS bindings. - PassRefPtr<Element> querySelector(const String& selectors, ExceptionCode&); - PassRefPtr<NodeList> querySelectorAll(const String& selectors, ExceptionCode&); - - unsigned short compareDocumentPosition(Node*); - -protected: - virtual void willMoveToNewOwnerDocument() { } - virtual void didMoveToNewOwnerDocument() { } - - virtual void getSubresourceAttributeStrings(Vector<String>&) const { } - void setTabIndexExplicitly(short i) - { - m_tabIndex = i; - m_tabIndexSetExplicitly = true; - } - -private: - DocPtr<Document> m_document; - Node* m_previous; - Node* m_next; - RenderObject* m_renderer; - - OwnPtr<NodeListsNodeData> m_nodeLists; - - short m_tabIndex; - - // make sure we don't use more than 16 bits here -- adding more would increase the size of all Nodes - - unsigned m_styleChange : 2; - bool m_hasId : 1; - bool m_hasClass : 1; - bool m_attached : 1; - bool m_hasChangedChild : 1; - bool m_inDocument : 1; - bool m_isLink : 1; - bool m_focused : 1; - bool m_active : 1; - bool m_hovered : 1; - bool m_inActiveChain : 1; - bool m_inDetach : 1; - bool m_inSubtreeMark : 1; - bool m_tabIndexSetExplicitly : 1; - const bool m_isElement : 1; - // no bits left - - Element* ancestorElement() const; - - void appendTextContent(bool convertBRsToNewlines, StringBuilder&) const; - - virtual Node* virtualFirstChild() const; - virtual Node* virtualLastChild() const; - virtual bool virtualHasTagName(const QualifiedName&) const; -}; - -} //namespace - -#ifndef NDEBUG -// Outside the WebCore namespace for ease of invocation from gdb. -void showTree(const WebCore::Node*); -#endif - -#endif |