163 lines
6.0 KiB
C++
163 lines
6.0 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#ifndef nsHTMLContent_h___
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#define nsHTMLContent_h___
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#include "nsIHTMLContent.h"
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#include "nsIDOMNode.h"
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#include "nsIScriptObjectOwner.h"
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#include "nsIDOMEventReceiver.h"
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#include "nsGUIEvent.h"
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class nsIEventListenerManager;
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class nsIArena;
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class nsIAtom;
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class nsXIFConverter;
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/**
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* Abstract base class for un-tagged html content objects. Supports
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* allocation from the malloc heap as well as from an arena. Note
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* that instances of this object are created with zero'd memory.
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*/
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class nsHTMLContent : public nsIHTMLContent, public nsIDOMNode, public nsIScriptObjectOwner, public nsIDOMEventReceiver {
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public:
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/**
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* This new method allocates memory from the standard malloc heap
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* and zeros out the content object.
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*/
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void* operator new(size_t size);
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/**
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* This new method allocates memory from the given arena and
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* and zeros out the content object.
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*/
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void* operator new(size_t size, nsIArena* aArena);
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/**
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* Release the memory associated with the content object. If the
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* object was allocated from an arena then nothing happens.
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*/
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void operator delete(void* ptr);
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NS_IMETHOD QueryInterface(const nsIID& aIID, void** aInstancePtr);
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NS_IMETHOD_(nsrefcnt) AddRef();
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NS_IMETHOD_(nsrefcnt) Release();
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NS_IMETHOD GetDocument(nsIDocument*& aResult) const;
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virtual void SetDocument(nsIDocument* aDocument);
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virtual nsIContent* GetParent() const;
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virtual void SetParent(nsIContent* aParent);
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virtual PRBool CanContainChildren() const;
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virtual PRInt32 ChildCount() const;
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virtual nsIContent* ChildAt(PRInt32 aIndex) const;
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virtual PRInt32 IndexOf(nsIContent* aPossibleChild) const;
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NS_IMETHOD InsertChildAt(nsIContent* aKid, PRInt32 aIndex, PRBool aNotify);
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NS_IMETHOD ReplaceChildAt(nsIContent* aKid, PRInt32 aIndex, PRBool aNotify);
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NS_IMETHOD AppendChild(nsIContent* aKid, PRBool aNotify);
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NS_IMETHOD RemoveChildAt(PRInt32 aIndex, PRBool aNotify);
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NS_IMETHOD IsSynthetic(PRBool& aResult);
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virtual void Compact();
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virtual void SetAttribute(const nsString& aName, const nsString& aValue);
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virtual nsContentAttr GetAttribute(const nsString& aName,
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nsString& aResult) const;
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virtual void SetAttribute(nsIAtom* aAttribute, const nsString& aValue);
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virtual void SetAttribute(nsIAtom* aAttribute,
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const nsHTMLValue& aValue = nsHTMLValue::kNull);
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virtual void UnsetAttribute(nsIAtom* aAttribute);
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virtual nsContentAttr GetAttribute(nsIAtom* aAttribute,
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nsHTMLValue& aValue) const;
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virtual PRInt32 GetAllAttributeNames(nsISupportsArray* aArray) const;
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virtual PRInt32 GetAttributeCount(void) const;
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virtual void SetID(nsIAtom* aID);
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virtual nsIAtom* GetID(void) const;
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virtual void SetClass(nsIAtom* aClass); // XXX this will have to change for CSS2
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virtual nsIAtom* GetClass(void) const; // XXX this will have to change for CSS2
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virtual nsIStyleRule* GetStyleRule(void);
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virtual void MapAttributesInto(nsIStyleContext* aContext,
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nsIPresContext* aPresContext);
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virtual void List(FILE* out, PRInt32 aIndent) const;
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NS_IMETHOD SizeOf(nsISizeOfHandler* aHandler) const;
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virtual nsIAtom* GetTag() const;
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virtual void ToHTML(FILE* out) const;
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virtual nsIContentDelegate* GetDelegate(nsIPresContext* aCX);
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static void NewGlobalAtom(const char* aString, nsIAtom** aAtomResult);
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static void ReleaseGlobalAtom(nsIAtom** aAtomResult);
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static void QuoteForHTML(const nsString& aValue, nsString& aResult);
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public:
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NS_IMETHOD ResetScriptObject();
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// nsIDOMNode interface
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NS_IMETHOD GetParentNode(nsIDOMNode** aParentNode);
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NS_IMETHOD GetChildNodes(nsIDOMNodeList** aChildNodes);
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NS_IMETHOD GetHasChildNodes(PRBool* aHasChildNodes);
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NS_IMETHOD GetFirstChild(nsIDOMNode** aFirstChild);
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NS_IMETHOD GetLastChild(nsIDOMNode** aLastChild);
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NS_IMETHOD GetPreviousSibling(nsIDOMNode** aPreviousSibling);
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NS_IMETHOD GetNextSibling(nsIDOMNode** aNextSibling);
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NS_IMETHOD GetAttributes(nsIDOMNamedNodeMap** aAttributes);
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NS_IMETHOD InsertBefore(nsIDOMNode* aNewChild, nsIDOMNode* aRefChild, nsIDOMNode** aReturn);
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NS_IMETHOD ReplaceChild(nsIDOMNode* aNewChild, nsIDOMNode* aOldChild, nsIDOMNode** aReturn);
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NS_IMETHOD RemoveChild(nsIDOMNode* aOldChild, nsIDOMNode** aReturn);
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// nsIDOMEventReceiver interface
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NS_IMETHOD AddEventListener(nsIDOMEventListener *aListener, const nsIID& aIID);
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NS_IMETHOD RemoveEventListener(nsIDOMEventListener *aListener, const nsIID& aIID);
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NS_IMETHOD GetListenerManager(nsIEventListenerManager** aInstancePtrResult);
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NS_IMETHOD GetNewListenerManager(nsIEventListenerManager** aInstancePtrResult);
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NS_IMETHOD HandleDOMEvent(nsIPresContext& aPresContext,
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nsEvent* aEvent,
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nsIDOMEvent** aDOMEvent,
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PRUint32 aFlags,
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nsEventStatus& aEventStatus);
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protected:
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nsHTMLContent();
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virtual ~nsHTMLContent();
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virtual void ListAttributes(FILE* out) const;
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void SizeOfWithoutThis(nsISizeOfHandler* aHandler) const;
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PRUint32 mInHeap : 1;
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PRUint32 mRefCnt : 31;
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nsIDocument* mDocument;
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nsIContent* mParent;
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void* mScriptObject;
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nsIEventListenerManager* mListenerManager;
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};
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#endif /* nsHTMLContent_h___ */
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