зеркало из https://github.com/mozilla/gecko-dev.git
294 строки
11 KiB
C++
294 строки
11 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 nsIDocument_h___
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#define nsIDocument_h___
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#include "nslayout.h"
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#include "nsISupports.h"
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#include "nsIUnicharInputStream.h"
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#include "nsGUIEvent.h"
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class nsIAtom;
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class nsIArena;
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class nsIContent;
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class nsIDocumentContainer;
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class nsIDocumentObserver;
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class nsIPresContext;
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class nsIPresShell;
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class nsICollection;
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class nsIStreamListener;
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class nsIStreamObserver;
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class nsIStyleSet;
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class nsIStyleSheet;
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class nsIStyleRule;
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class nsIURL;
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class nsIURLGroup;
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class nsIViewManager;
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class nsString;
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class nsIScriptContextOwner;
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class nsIContentViewerContainer;
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class nsIDOMEvent;
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class nsIDeviceContext;
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class nsIParser;
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class nsIDOMNode;
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class nsXIFConverter;
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class nsINameSpaceManager;
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class nsISelection;
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class nsIDOMDocumentFragment;
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// IID for the nsIDocument interface
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#define NS_IDOCUMENT_IID \
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{ 0x94c6ceb0, 0x9447, 0x11d1, \
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{0x93, 0x23, 0x00, 0x80, 0x5f, 0x8a, 0xdd, 0x32} }
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// specification for data to be sent via form "post"
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// IID for the nsIPostData interface - 152ab6e0-ff13-11d1-beb9-00805f8a66dc
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#define NS_IPOSTDATA_IID \
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{ 0x152ab6e0, 0xff13, 0x11d1, \
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{0xbe, 0xb9, 0x00, 0x80, 0x5f, 0x8a, 0x66, 0xdc} }
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class nsIPostData : public nsISupports {
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public:
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virtual PRBool IsFile() = 0; // is the data a file (or raw data)
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virtual const char* GetData() = 0; // get the file name or raw data
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virtual PRInt32 GetDataLength() = 0;
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};
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//----------------------------------------------------------------------
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// Document interface
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class nsIDocument : public nsISupports {
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public:
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// All documents have a memory arena associated with them which is
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// used for memory allocation during document creation. This call
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// returns the arena associated with this document.
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virtual nsIArena* GetArena() = 0;
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NS_IMETHOD StartDocumentLoad(nsIURL *aUrl,
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nsIContentViewerContainer* aContainer,
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nsIStreamListener **aDocListener,
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const char* aCommand) = 0;
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/**
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* Return the title of the document. May return null.
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*/
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virtual const nsString* GetDocumentTitle() const = 0;
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/**
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* Return the URL for the document. May return null.
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*/
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virtual nsIURL* GetDocumentURL() const = 0;
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/**
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* Return the URLGroup for the document. May return null.
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*/
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virtual nsIURLGroup* GetDocumentURLGroup() const = 0;
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/**
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* Return the base URL for realtive URLs in the document. May return null (or the document URL).
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*/
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NS_IMETHOD GetBaseURL(nsIURL*& aURL) const = 0;
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/**
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* Return a standard name for the document's character set. This will
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* trigger a startDocumentLoad if necessary to answer the question.
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*/
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virtual nsString* GetDocumentCharacterSet() const = 0;
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virtual void SetDocumentCharacterSet(nsString* aCharSetID) = 0;
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/**
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* Access HTTP header data (this may also get set from other sources, like
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* HTML META tags).
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*/
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NS_IMETHOD GetHeaderData(nsIAtom* aHeaderField, nsString& aData) const = 0;
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NS_IMETHOD SetHeaderData(nsIAtom* aheaderField, const nsString& aData) = 0;
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/**
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* Create a new presentation shell that will use aContext for
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* it's presentation context (presentation context's <b>must not</b> be
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* shared among multiple presentation shell's).
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*/
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virtual nsresult CreateShell(nsIPresContext* aContext,
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nsIViewManager* aViewManager,
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nsIStyleSet* aStyleSet,
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nsIPresShell** aInstancePtrResult) = 0;
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virtual PRBool DeleteShell(nsIPresShell* aShell) = 0;
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virtual PRInt32 GetNumberOfShells() = 0;
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virtual nsIPresShell* GetShellAt(PRInt32 aIndex) = 0;
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/**
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* Return the parent document of this document. Will return null
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* unless this document is within a compound document and has a parent.
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*/
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virtual nsIDocument* GetParentDocument() = 0;
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virtual void SetParentDocument(nsIDocument* aParent) = 0;
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virtual void AddSubDocument(nsIDocument* aSubDoc) = 0;
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virtual PRInt32 GetNumberOfSubDocuments() = 0;
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virtual nsIDocument* GetSubDocumentAt(PRInt32 aIndex) = 0;
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/**
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* Return the root content object for this document.
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*/
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virtual nsIContent* GetRootContent() = 0;
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virtual void SetRootContent(nsIContent* aRoot) = 0;
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/**
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* Get the style sheets owned by this document.
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* Style sheets are ordered, most significant last.
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*/
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virtual PRInt32 GetNumberOfStyleSheets() = 0;
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virtual nsIStyleSheet* GetStyleSheetAt(PRInt32 aIndex) = 0;
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virtual PRInt32 GetIndexOfStyleSheet(nsIStyleSheet* aSheet) = 0;
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virtual void AddStyleSheet(nsIStyleSheet* aSheet) = 0;
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virtual void SetStyleSheetDisabledState(nsIStyleSheet* aSheet,
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PRBool mDisabled) = 0;
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/**
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* Set the object from which a document can get a script context.
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* This is the context within which all scripts (during document
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* creation and during event handling) will run.
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*/
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virtual nsIScriptContextOwner *GetScriptContextOwner() = 0;
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virtual void SetScriptContextOwner(nsIScriptContextOwner *aScriptContextOwner) = 0;
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/**
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* Get the name space manager for this document
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*/
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NS_IMETHOD GetNameSpaceManager(nsINameSpaceManager*& aManager) = 0;
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//----------------------------------------------------------------------
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// Document notification API's
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/**
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* Add a new observer of document change notifications. Whenever
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* content is changed, appended, inserted or removed the observers are
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* informed.
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*/
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virtual void AddObserver(nsIDocumentObserver* aObserver) = 0;
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/**
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* Remove an observer of document change notifications. This will
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* return false if the observer cannot be found.
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*/
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virtual PRBool RemoveObserver(nsIDocumentObserver* aObserver) = 0;
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// Observation hooks used by content nodes to propagate
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// notifications to document observers.
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NS_IMETHOD BeginLoad() = 0;
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NS_IMETHOD EndLoad() = 0;
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NS_IMETHOD ContentChanged(nsIContent* aContent,
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nsISupports* aSubContent) = 0;
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NS_IMETHOD AttributeChanged(nsIContent* aChild,
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nsIAtom* aAttribute,
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PRInt32 aHint) = 0; // See nsStyleConsts fot hint values
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NS_IMETHOD ContentAppended(nsIContent* aContainer,
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PRInt32 aNewIndexInContainer) = 0;
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NS_IMETHOD ContentInserted(nsIContent* aContainer,
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nsIContent* aChild,
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PRInt32 aIndexInContainer) = 0;
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NS_IMETHOD ContentReplaced(nsIContent* aContainer,
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nsIContent* aOldChild,
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nsIContent* aNewChild,
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PRInt32 aIndexInContainer) = 0;
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NS_IMETHOD ContentRemoved(nsIContent* aContainer,
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nsIContent* aChild,
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PRInt32 aIndexInContainer) = 0;
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// Observation hooks for style data to propogate notifications
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// to document observers
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NS_IMETHOD StyleRuleChanged(nsIStyleSheet* aStyleSheet,
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nsIStyleRule* aStyleRule,
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PRInt32 aHint) = 0; // See nsStyleConsts fot hint values
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NS_IMETHOD StyleRuleAdded(nsIStyleSheet* aStyleSheet,
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nsIStyleRule* aStyleRule) = 0;
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NS_IMETHOD StyleRuleRemoved(nsIStyleSheet* aStyleSheet,
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nsIStyleRule* aStyleRule) = 0;
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/**
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* Returns the Selection Object
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*/
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NS_IMETHOD GetSelection(nsICollection ** aSelection) = 0;
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/**
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* Selects all the Content
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*/
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NS_IMETHOD SelectAll() = 0;
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/**
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* Finds text in content
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*/
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NS_IMETHOD FindNext(const nsString &aSearchStr, PRBool aMatchCase, PRBool aSearchDown, PRBool &aIsFound) = 0;
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/**
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* Converts the document or a selection of the
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* document to XIF (XML Interchange Format)
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* and places the result in aBuffer.
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* NOTE: we may way to place the result in a stream,
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* but we will use a string for now -- gpk
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*/
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virtual void CreateXIF(nsString & aBuffer, nsISelection* aSelection = nsnull) = 0;
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virtual void ToXIF(nsXIFConverter& aConverter, nsIDOMNode* aNode) = 0;
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virtual void BeginConvertToXIF(nsXIFConverter& aConverter, nsIDOMNode* aNode) = 0;
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virtual void ConvertChildrenToXIF(nsXIFConverter& aConverter, nsIDOMNode* aNode) = 0;
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virtual void FinishConvertToXIF(nsXIFConverter& aConverter, nsIDOMNode* aNode) = 0;
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/* Helper methods to help determine the logical positioning of content */
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virtual PRBool IsInRange(const nsIContent *aStartContent, const nsIContent* aEndContent, const nsIContent* aContent) const = 0;
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virtual PRBool IsBefore(const nsIContent *aNewContent, const nsIContent* aCurrentContent) const = 0;
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virtual PRBool IsInSelection(nsISelection* aSelection, const nsIContent *aContent) const = 0;
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virtual nsIContent* GetPrevContent(const nsIContent *aContent) const = 0;
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virtual nsIContent* GetNextContent(const nsIContent *aContent) const = 0;
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virtual void SetDisplaySelection(PRBool aToggle) = 0;
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virtual PRBool GetDisplaySelection() const = 0;
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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) = 0;
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};
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// XXX These belong somewhere else
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extern NS_LAYOUT nsresult
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NS_NewHTMLDocument(nsIDocument** aInstancePtrResult);
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extern NS_LAYOUT nsresult
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NS_NewXMLDocument(nsIDocument** aInstancePtrResult);
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extern NS_LAYOUT nsresult
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NS_NewImageDocument(nsIDocument** aInstancePtrResult);
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extern NS_LAYOUT nsresult
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NS_NewDocumentFragment(nsIDOMDocumentFragment** aInstancePtrResult,
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nsIDocument* aOwnerDocument);
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// Note: The buffer passed into NewPostData(...) becomes owned by the IPostData
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// instance and is freed when the instance is destroyed...
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//
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extern NS_LAYOUT nsresult
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NS_NewPostData(PRBool aIsFile, char *aData, nsIPostData** aInstancePtrResult);
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#endif /* nsIDocument_h___ */
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