зеркало из https://github.com/mozilla/gecko-dev.git
918 строки
29 KiB
C++
918 строки
29 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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#include "nsTextEditor.h"
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#include "nsIEditorSupport.h"
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#include "nsEditorEventListeners.h"
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#include "nsIEditProperty.h"
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#include "nsIStreamListener.h"
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#include "nsIParser.h"
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#include "nsParserCIID.h"
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#include "nsIDocument.h"
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#include "nsIHTMLContentSink.h"
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#include "nsHTMLContentSinkStream.h"
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#include "nsHTMLToTXTSinkStream.h"
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#include "nsXIFDTD.h"
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#include "nsIDOMDocument.h"
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#include "nsIDOMEventReceiver.h"
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#include "nsIDOMKeyListener.h"
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#include "nsIDOMMouseListener.h"
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#include "nsIDOMSelection.h"
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#include "nsIDOMRange.h"
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#include "nsIDOMNodeList.h"
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#include "nsIDOMCharacterData.h"
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#include "nsEditorCID.h"
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#include "nsISupportsArray.h"
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#include "nsIEnumerator.h"
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#include "nsIContentIterator.h"
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#include "nsIContent.h"
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#include "nsLayoutCID.h"
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#include "nsIPresShell.h"
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#include "nsIStyleContext.h"
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class nsIFrame;
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#ifdef XP_UNIX
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#include <strstream.h>
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#endif
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#ifdef XP_MAC
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#include <sstream>
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#include <string>
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#endif
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#ifdef XP_PC
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#include <strstrea.h>
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#endif
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#include "CreateElementTxn.h"
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#include "nsIComponentManager.h"
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#include "nsIServiceManager.h"
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static NS_DEFINE_IID(kIDOMEventReceiverIID, NS_IDOMEVENTRECEIVER_IID);
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static NS_DEFINE_IID(kIDOMMouseListenerIID, NS_IDOMMOUSELISTENER_IID);
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static NS_DEFINE_IID(kIDOMKeyListenerIID, NS_IDOMKEYLISTENER_IID);
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static NS_DEFINE_IID(kIEditPropertyIID, NS_IEDITPROPERTY_IID);
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static NS_DEFINE_CID(kEditorCID, NS_EDITOR_CID);
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static NS_DEFINE_IID(kIEditorIID, NS_IEDITOR_IID);
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static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
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static NS_DEFINE_IID(kITextEditorIID, NS_ITEXTEDITOR_IID);
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static NS_DEFINE_CID(kTextEditorCID, NS_TEXTEDITOR_CID);
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static NS_DEFINE_IID(kIContentIteratorIID, NS_ICONTENTITERTOR_IID);
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static NS_DEFINE_CID(kCContentIteratorCID, NS_CONTENTITERATOR_CID);
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nsTextEditor::nsTextEditor()
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{
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// Done in nsEditor
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// NS_INIT_REFCNT();
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}
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nsTextEditor::~nsTextEditor()
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{
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//the autopointers will clear themselves up.
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//but we need to also remove the listeners or we have a leak
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nsCOMPtr<nsIDOMDocument> doc;
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Inherited::GetDocument(getter_AddRefs(doc));
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if (doc)
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{
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nsCOMPtr<nsIDOMEventReceiver> erP;
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nsresult result = doc->QueryInterface(kIDOMEventReceiverIID, getter_AddRefs(erP));
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if (NS_SUCCEEDED(result) && erP)
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{
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if (mKeyListenerP) {
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erP->RemoveEventListener(mKeyListenerP, kIDOMKeyListenerIID);
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}
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if (mMouseListenerP) {
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erP->RemoveEventListener(mMouseListenerP, kIDOMMouseListenerIID);
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}
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}
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else
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NS_NOTREACHED("~nsTextEditor");
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}
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}
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// Adds appropriate AddRef, Release, and QueryInterface methods for derived class
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//NS_IMPL_ISUPPORTS_INHERITED(nsTextEditor, nsEditor, nsITextEditor)
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//NS_IMPL_ADDREF_INHERITED(Class, Super)
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NS_IMETHODIMP_(nsrefcnt) nsTextEditor::AddRef(void)
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{
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return Inherited::AddRef();
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}
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//NS_IMPL_RELEASE_INHERITED(Class, Super)
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NS_IMETHODIMP_(nsrefcnt) nsTextEditor::Release(void)
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{
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return Inherited::Release();
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}
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//NS_IMPL_QUERY_INTERFACE_INHERITED(Class, Super, AdditionalInterface)
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NS_IMETHODIMP nsTextEditor::QueryInterface(REFNSIID aIID, void** aInstancePtr)
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{
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if (!aInstancePtr) return NS_ERROR_NULL_POINTER;
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if (aIID.Equals(nsITextEditor::GetIID())) {
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*aInstancePtr = NS_STATIC_CAST(nsITextEditor*, this);
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NS_ADDREF_THIS();
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return NS_OK;
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}
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return Inherited::QueryInterface(aIID, aInstancePtr);
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}
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NS_IMETHODIMP nsTextEditor::Init(nsIDOMDocument *aDoc, nsIPresShell *aPresShell)
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{
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NS_PRECONDITION(nsnull!=aDoc && nsnull!=aPresShell, "bad arg");
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nsresult result=NS_ERROR_NULL_POINTER;
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if ((nsnull!=aDoc) && (nsnull!=aPresShell))
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{
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// Init the base editor
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result = Inherited::Init(aDoc, aPresShell);
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if (NS_OK != result)
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return result;
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result = NS_NewEditorKeyListener(getter_AddRefs(mKeyListenerP), this);
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if (NS_OK != result) {
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return result;
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}
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result = NS_NewEditorMouseListener(getter_AddRefs(mMouseListenerP), this);
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if (NS_OK != result) {
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// drop the key listener if we couldn't get a mouse listener.
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mKeyListenerP = do_QueryInterface(0);
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return result;
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}
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nsCOMPtr<nsIDOMEventReceiver> erP;
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result = aDoc->QueryInterface(kIDOMEventReceiverIID, getter_AddRefs(erP));
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if (NS_OK != result)
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{
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mKeyListenerP = do_QueryInterface(0);
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mMouseListenerP = do_QueryInterface(0); //dont need these if we cant register them
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return result;
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}
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//cmanske: Shouldn't we check result from this?
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erP->AddEventListener(mKeyListenerP, kIDOMKeyListenerIID);
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//erP->AddEventListener(mMouseListenerP, kIDOMMouseListenerIID);
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result = NS_OK;
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EnableUndo(PR_TRUE);
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}
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return result;
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}
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// this is a total hack for now. We don't yet have a way of getting the style properties
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// of the current selection, so we can't do anything useful here except show off a little.
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NS_IMETHODIMP nsTextEditor::SetTextProperty(nsIAtom *aProperty)
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{
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if (!aProperty)
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return NS_ERROR_NULL_POINTER;
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nsresult result=NS_ERROR_NOT_INITIALIZED;
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nsCOMPtr<nsIDOMSelection>selection;
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result = Inherited::GetSelection(getter_AddRefs(selection));
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if ((NS_SUCCEEDED(result)) && selection)
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{
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Inherited::BeginTransaction();
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nsCOMPtr<nsIEnumerator> enumerator;
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enumerator = do_QueryInterface(selection, &result);
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if ((NS_SUCCEEDED(result)) && enumerator)
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{
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enumerator->First();
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nsISupports *currentItem;
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result = enumerator->CurrentItem(¤tItem);
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if ((NS_SUCCEEDED(result)) && (nsnull!=currentItem))
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{
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nsCOMPtr<nsIDOMRange> range( do_QueryInterface(currentItem) );
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nsCOMPtr<nsIDOMNode>commonParent;
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result = range->GetCommonParent(getter_AddRefs(commonParent));
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if ((NS_SUCCEEDED(result)) && commonParent)
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{
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PRInt32 startOffset, endOffset;
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range->GetStartOffset(&startOffset);
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range->GetEndOffset(&endOffset);
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nsCOMPtr<nsIDOMNode> startParent; nsCOMPtr<nsIDOMNode> endParent;
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range->GetStartParent(getter_AddRefs(startParent));
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range->GetEndParent(getter_AddRefs(endParent));
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if (startParent.get()==endParent.get())
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{ // the range is entirely contained within a single text node
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result = SetTextPropertiesForNode(startParent, commonParent,
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startOffset, endOffset,
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aProperty);
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}
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else
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{
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nsCOMPtr<nsIDOMNode> startGrandParent;
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startParent->GetParentNode(getter_AddRefs(startGrandParent));
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nsCOMPtr<nsIDOMNode> endGrandParent;
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endParent->GetParentNode(getter_AddRefs(endGrandParent));
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if (NS_SUCCEEDED(result))
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{
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if (endGrandParent.get()==startGrandParent.get())
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{ // the range is between 2 nodes that have a common (immediate) grandparent
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result = SetTextPropertiesForNodesWithSameParent(startParent,startOffset,
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endParent, endOffset,
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commonParent,
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aProperty);
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}
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else
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{ // the range is between 2 nodes that have no simple relationship
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result = SetTextPropertiesForNodeWithDifferentParents(range,
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startParent,startOffset,
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endParent, endOffset,
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commonParent,
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aProperty);
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}
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}
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}
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if (NS_SUCCEEDED(result))
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{ // compute a range for the selection
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// don't want to actually do anything with selection, because
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// we are still iterating through it. Just want to create and remember
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// an nsIDOMRange, and later add the range to the selection after clearing it.
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// XXX: I'm blocked here because nsIDOMSelection doesn't provide a mechanism
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// for setting a compound selection yet.
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}
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}
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}
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}
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Inherited::EndTransaction();
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if (NS_SUCCEEDED(result))
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{ // set the selection
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// XXX: can't do anything until I can create ranges
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}
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}
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return result;
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}
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NS_IMETHODIMP nsTextEditor::GetTextProperty(nsIAtom *aProperty, PRBool &aAny, PRBool &aAll)
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{
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if (!aProperty)
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return NS_ERROR_NULL_POINTER;
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nsresult result=NS_ERROR_NOT_INITIALIZED;
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aAny=PR_FALSE;
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aAll=PR_TRUE;
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nsCOMPtr<nsIDOMSelection>selection;
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result = Inherited::GetSelection(getter_AddRefs(selection));
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if ((NS_SUCCEEDED(result)) && selection)
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{
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nsCOMPtr<nsIEnumerator> enumerator;
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enumerator = do_QueryInterface(selection, &result);
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if ((NS_SUCCEEDED(result)) && enumerator)
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{
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enumerator->First();
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nsISupports *currentItem;
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result = enumerator->CurrentItem(¤tItem);
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if ((NS_SUCCEEDED(result)) && currentItem)
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{
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nsCOMPtr<nsIDOMRange> range( do_QueryInterface(currentItem) );
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nsCOMPtr<nsIContentIterator> iter;
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result = nsComponentManager::CreateInstance(kCContentIteratorCID, nsnull,
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kIContentIteratorIID,
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getter_AddRefs(iter));
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if ((NS_SUCCEEDED(result)) && iter)
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{
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iter->Init(range);
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return 0;
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// loop through the content iterator for each content node
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// for each text node:
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// get the frame for the content, and from it the style context
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// ask the style context about the property
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nsCOMPtr<nsIContent> content;
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result = iter->CurrentNode(getter_AddRefs(content));
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int i=0;
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while (NS_COMFALSE == iter->IsDone())
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{
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nsCOMPtr<nsIDOMCharacterData>text;
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text = do_QueryInterface(content);
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if (text)
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{
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nsCOMPtr<nsIPresShell>presShell;
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Inherited::GetPresShell(getter_AddRefs(presShell));
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NS_ASSERTION(presShell, "bad state, null pres shell");
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if (presShell)
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{
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nsIFrame *frame;
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result = presShell->GetPrimaryFrameFor(content, &frame);
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if ((NS_SUCCEEDED(result)) && frame)
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{
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nsCOMPtr<nsIStyleContext> sc;
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result = presShell->GetStyleContextFor(frame, getter_AddRefs(sc));
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if ((NS_SUCCEEDED(result)) && sc)
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{
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PRBool isSet;
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IsTextStyleSet(sc, aProperty, isSet);
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if (PR_TRUE==isSet) {
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aAny = PR_TRUE;
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}
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else {
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aAll = PR_FALSE;
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}
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}
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}
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}
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}
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iter->Next();
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result = iter->CurrentNode(getter_AddRefs(content));
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}
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}
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}
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}
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}
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return result;
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}
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void nsTextEditor::IsTextStyleSet(nsIStyleContext *aSC,
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nsIAtom *aProperty,
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PRBool &aIsSet) const
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{
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aIsSet = PR_FALSE;
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if (aSC && aProperty)
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{
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nsStyleFont* font = (nsStyleFont*)aSC->GetStyleData(eStyleStruct_Font);
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if (nsIEditProperty::italic==aProperty)
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{
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aIsSet = PRBool(font->mFont.style & NS_FONT_STYLE_ITALIC);
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}
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else if (nsIEditProperty::bold==aProperty)
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{ // XXX: check this logic with Peter
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aIsSet = PRBool(font->mFont.weight > NS_FONT_WEIGHT_NORMAL);
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}
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}
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}
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NS_IMETHODIMP nsTextEditor::RemoveTextProperty(nsIAtom *aProperty)
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{
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nsresult result=NS_ERROR_NOT_INITIALIZED;
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP nsTextEditor::DeleteSelection(nsIEditor::Direction aDir)
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{
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return Inherited::DeleteSelection(aDir);
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}
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NS_IMETHODIMP nsTextEditor::InsertText(const nsString& aStringToInsert)
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{
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return Inherited::InsertText(aStringToInsert);
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}
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NS_IMETHODIMP nsTextEditor::InsertBreak(PRBool aCtrlKey)
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{
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// Note: Code that does most of the deletion work was
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// moved to nsEditor::DeleteSelectionAndCreateNode
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// Only difference is we now do BeginTransaction()/EndTransaction()
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// even if we fail to get a selection
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nsresult result = Inherited::BeginTransaction();
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nsCOMPtr<nsIDOMNode> newNode;
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nsAutoString tag("BR");
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Inherited::DeleteSelectionAndCreateNode(tag, getter_AddRefs(newNode));
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// Are we supposed to release newNode?
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result = Inherited::EndTransaction();
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return result;
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}
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NS_IMETHODIMP nsTextEditor::EnableUndo(PRBool aEnable)
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{
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return Inherited::EnableUndo(aEnable);
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}
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NS_IMETHODIMP nsTextEditor::Undo(PRUint32 aCount)
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{
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return Inherited::Undo(aCount);
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}
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NS_IMETHODIMP nsTextEditor::CanUndo(PRBool &aIsEnabled, PRBool &aCanUndo)
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{
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return Inherited::CanUndo(aIsEnabled, aCanUndo);
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}
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NS_IMETHODIMP nsTextEditor::Redo(PRUint32 aCount)
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{
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return Inherited::Redo(aCount);
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}
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NS_IMETHODIMP nsTextEditor::CanRedo(PRBool &aIsEnabled, PRBool &aCanRedo)
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{
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return Inherited::CanRedo(aIsEnabled, aCanRedo);
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}
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NS_IMETHODIMP nsTextEditor::BeginTransaction()
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{
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return Inherited::BeginTransaction();
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}
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NS_IMETHODIMP nsTextEditor::EndTransaction()
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{
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return Inherited::EndTransaction();
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}
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NS_IMETHODIMP nsTextEditor::MoveSelectionUp(nsIAtom *aIncrement, PRBool aExtendSelection)
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{
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP nsTextEditor::MoveSelectionDown(nsIAtom *aIncrement, PRBool aExtendSelection)
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{
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP nsTextEditor::MoveSelectionNext(nsIAtom *aIncrement, PRBool aExtendSelection)
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{
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP nsTextEditor::MoveSelectionPrevious(nsIAtom *aIncrement, PRBool aExtendSelection)
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{
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP nsTextEditor::SelectNext(nsIAtom *aIncrement, PRBool aExtendSelection)
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{
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP nsTextEditor::SelectPrevious(nsIAtom *aIncrement, PRBool aExtendSelection)
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{
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP nsTextEditor::ScrollUp(nsIAtom *aIncrement)
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{
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP nsTextEditor::ScrollDown(nsIAtom *aIncrement)
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{
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP nsTextEditor::ScrollIntoView(PRBool aScrollToBegin)
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{
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return Inherited::ScrollIntoView(aScrollToBegin);
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}
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NS_IMETHODIMP nsTextEditor::Insert(nsIInputStream *aInputStream)
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{
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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#ifdef XP_MAC
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static void WriteFromStringstream(stringstream& aIn, nsString& aOutputString)
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{
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string theString = aIn.str();
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PRInt32 len = theString.length();
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aOutputString.SetLength(0); // empty the string
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aOutputString += theString.data();
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/* relace LF with CR. Don't do this here, because strings passed out
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to JavaScript need LF termination.
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PRUnichar lineFeed = '\n';
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PRUnichar carriageReturn = '\r';
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aOutputString.ReplaceChar(lineFeed, carriageReturn);
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|
*/
|
|
}
|
|
#else
|
|
static void WriteFromOstrstream(ostrstream& aIn, nsString& aOutputString)
|
|
{
|
|
char* strData = aIn.str();
|
|
|
|
aOutputString.SetLength(0); // empty the string
|
|
aOutputString += strData;
|
|
|
|
// in ostrstreams if you call the str() function
|
|
// then you are responsible for deleting the string
|
|
delete strData;
|
|
}
|
|
#endif
|
|
|
|
NS_IMETHODIMP nsTextEditor::OutputText(nsString& aOutputString)
|
|
{
|
|
#ifdef XP_MAC
|
|
stringstream outStream;
|
|
#else
|
|
ostrstream outStream;
|
|
#endif
|
|
|
|
nsresult rv = NS_ERROR_FAILURE;
|
|
nsIPresShell* shell = nsnull;
|
|
|
|
GetPresShell(&shell);
|
|
if (nsnull != shell) {
|
|
nsCOMPtr<nsIDocument> doc;
|
|
shell->GetDocument(getter_AddRefs(doc));
|
|
if (doc) {
|
|
nsString buffer;
|
|
|
|
doc->CreateXIF(buffer);
|
|
|
|
nsIParser* parser;
|
|
|
|
static NS_DEFINE_IID(kCParserIID, NS_IPARSER_IID);
|
|
static NS_DEFINE_IID(kCParserCID, NS_PARSER_IID);
|
|
|
|
rv = nsComponentManager::CreateInstance(kCParserCID,
|
|
nsnull,
|
|
kCParserIID,
|
|
(void **)&parser);
|
|
|
|
if (NS_OK == rv) {
|
|
nsIHTMLContentSink* sink = nsnull;
|
|
|
|
rv = NS_New_HTMLToTXT_SinkStream(&sink);
|
|
if (NS_OK == rv) {
|
|
// what't this cast doing here, Greg?
|
|
((nsHTMLContentSinkStream*)sink)->SetOutputStream(outStream);
|
|
|
|
if (NS_OK == rv) {
|
|
parser->SetContentSink(sink);
|
|
|
|
nsIDTD* dtd = nsnull;
|
|
rv = NS_NewXIFDTD(&dtd);
|
|
if (NS_OK == rv) {
|
|
parser->RegisterDTD(dtd);
|
|
parser->Parse(buffer, 0, "text/xif",PR_FALSE,PR_TRUE);
|
|
}
|
|
#ifdef XP_MAC
|
|
WriteFromStringstream(outStream, aOutputString);
|
|
#else
|
|
WriteFromOstrstream(outStream, aOutputString);
|
|
#endif
|
|
|
|
NS_IF_RELEASE(dtd);
|
|
NS_IF_RELEASE(sink);
|
|
}
|
|
}
|
|
NS_RELEASE(parser);
|
|
}
|
|
}
|
|
NS_RELEASE(shell);
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
|
|
|
|
NS_IMETHODIMP nsTextEditor::OutputHTML(nsString& aOutputString)
|
|
{
|
|
#ifdef XP_MAC
|
|
stringstream outStream;
|
|
#else
|
|
ostrstream outStream;
|
|
#endif
|
|
|
|
nsresult rv = NS_ERROR_FAILURE;
|
|
nsIPresShell* shell = nsnull;
|
|
|
|
GetPresShell(&shell);
|
|
if (nsnull != shell) {
|
|
nsCOMPtr<nsIDocument> doc;
|
|
shell->GetDocument(getter_AddRefs(doc));
|
|
if (doc) {
|
|
nsString buffer;
|
|
|
|
doc->CreateXIF(buffer);
|
|
|
|
nsIParser* parser;
|
|
|
|
static NS_DEFINE_IID(kCParserIID, NS_IPARSER_IID);
|
|
static NS_DEFINE_IID(kCParserCID, NS_PARSER_IID);
|
|
|
|
rv = nsComponentManager::CreateInstance(kCParserCID,
|
|
nsnull,
|
|
kCParserIID,
|
|
(void **)&parser);
|
|
|
|
if (NS_OK == rv) {
|
|
nsIHTMLContentSink* sink = nsnull;
|
|
|
|
rv = NS_New_HTML_ContentSinkStream(&sink);
|
|
|
|
if (NS_OK == rv) {
|
|
((nsHTMLContentSinkStream*)sink)->SetOutputStream(outStream);
|
|
|
|
if (NS_OK == rv) {
|
|
parser->SetContentSink(sink);
|
|
|
|
nsIDTD* dtd = nsnull;
|
|
rv = NS_NewXIFDTD(&dtd);
|
|
if (NS_OK == rv) {
|
|
parser->RegisterDTD(dtd);
|
|
parser->Parse(buffer, 0, "text/xif",PR_FALSE,PR_TRUE);
|
|
}
|
|
#ifdef XP_MAC
|
|
WriteFromStringstream(outStream, aOutputString);
|
|
#else
|
|
WriteFromOstrstream(outStream, aOutputString);
|
|
#endif
|
|
NS_IF_RELEASE(dtd);
|
|
NS_IF_RELEASE(sink);
|
|
}
|
|
}
|
|
NS_RELEASE(parser);
|
|
}
|
|
}
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP nsTextEditor::SetTextPropertiesForNode(nsIDOMNode *aNode,
|
|
nsIDOMNode *aParent,
|
|
PRInt32 aStartOffset,
|
|
PRInt32 aEndOffset,
|
|
nsIAtom *aPropName)
|
|
{
|
|
nsresult result=NS_OK;
|
|
nsCOMPtr<nsIDOMCharacterData>nodeAsChar;
|
|
nodeAsChar = do_QueryInterface(aNode);
|
|
if (!nodeAsChar)
|
|
return NS_ERROR_FAILURE;
|
|
PRUint32 count;
|
|
nodeAsChar->GetLength(&count);
|
|
|
|
nsCOMPtr<nsIDOMNode>newTextNode; // this will be the text node we move into the new style node
|
|
if (aStartOffset!=0)
|
|
{
|
|
result = Inherited::SplitNode(aNode, aStartOffset, getter_AddRefs(newTextNode));
|
|
}
|
|
if (NS_SUCCEEDED(result))
|
|
{
|
|
if (aEndOffset!=(PRInt32)count)
|
|
{
|
|
result = Inherited::SplitNode(aNode, aEndOffset-aStartOffset, getter_AddRefs(newTextNode));
|
|
}
|
|
else
|
|
{
|
|
newTextNode = do_QueryInterface(aNode);
|
|
}
|
|
if (NS_SUCCEEDED(result))
|
|
{
|
|
nsAutoString tag;
|
|
result = SetTagFromProperty(tag, aPropName);
|
|
if (NS_SUCCEEDED(result))
|
|
{
|
|
PRInt32 offsetInParent;
|
|
result = nsIEditorSupport::GetChildOffset(aNode, aParent, offsetInParent);
|
|
if (NS_SUCCEEDED(result))
|
|
{
|
|
nsCOMPtr<nsIDOMNode>newStyleNode;
|
|
result = Inherited::CreateNode(tag, aParent, offsetInParent, getter_AddRefs(newStyleNode));
|
|
if (NS_SUCCEEDED(result))
|
|
{
|
|
result = Inherited::DeleteNode(newTextNode);
|
|
if (NS_SUCCEEDED(result)) {
|
|
result = Inherited::InsertNode(newTextNode, newStyleNode, 0);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTextEditor::SetTextPropertiesForNodesWithSameParent(nsIDOMNode *aStartNode,
|
|
PRInt32 aStartOffset,
|
|
nsIDOMNode *aEndNode,
|
|
PRInt32 aEndOffset,
|
|
nsIDOMNode *aParent,
|
|
nsIAtom *aPropName)
|
|
{
|
|
nsresult result=NS_OK;
|
|
nsCOMPtr<nsIDOMNode>newLeftTextNode; // this will be the middle text node
|
|
if (0!=aStartOffset) {
|
|
result = Inherited::SplitNode(aStartNode, aStartOffset, getter_AddRefs(newLeftTextNode));
|
|
}
|
|
if (NS_SUCCEEDED(result))
|
|
{
|
|
nsCOMPtr<nsIDOMCharacterData>endNodeAsChar;
|
|
endNodeAsChar = do_QueryInterface(aEndNode);
|
|
if (!endNodeAsChar)
|
|
return NS_ERROR_FAILURE;
|
|
PRUint32 count;
|
|
endNodeAsChar->GetLength(&count);
|
|
nsCOMPtr<nsIDOMNode>newRightTextNode; // this will be the middle text node
|
|
if ((PRInt32)count!=aEndOffset) {
|
|
result = Inherited::SplitNode(aEndNode, aEndOffset, getter_AddRefs(newRightTextNode));
|
|
}
|
|
else {
|
|
newRightTextNode = do_QueryInterface(aEndNode);
|
|
}
|
|
if (NS_SUCCEEDED(result))
|
|
{
|
|
PRInt32 offsetInParent;
|
|
if (newLeftTextNode) {
|
|
result = nsIEditorSupport::GetChildOffset(newLeftTextNode, aParent, offsetInParent);
|
|
}
|
|
else {
|
|
offsetInParent = -1; // relies on +1 below in call to CreateNode
|
|
}
|
|
if (NS_SUCCEEDED(result))
|
|
{
|
|
nsAutoString tag;
|
|
result = SetTagFromProperty(tag, aPropName);
|
|
if (NS_SUCCEEDED(result))
|
|
{ // create the new style node, which will be the new parent for the selected nodes
|
|
nsCOMPtr<nsIDOMNode>newStyleNode;
|
|
result = Inherited::CreateNode(tag, aParent, offsetInParent+1, getter_AddRefs(newStyleNode));
|
|
if (NS_SUCCEEDED(result))
|
|
{ // move the right half of the start node into the new style node
|
|
nsCOMPtr<nsIDOMNode>intermediateNode;
|
|
result = aStartNode->GetNextSibling(getter_AddRefs(intermediateNode));
|
|
if (NS_SUCCEEDED(result))
|
|
{
|
|
result = Inherited::DeleteNode(aStartNode);
|
|
if (NS_SUCCEEDED(result))
|
|
{
|
|
PRInt32 childIndex=0;
|
|
result = Inherited::InsertNode(aStartNode, newStyleNode, childIndex);
|
|
childIndex++;
|
|
if (NS_SUCCEEDED(result))
|
|
{ // move all the intermediate nodes into the new style node
|
|
nsCOMPtr<nsIDOMNode>nextSibling;
|
|
while (intermediateNode.get() != aEndNode)
|
|
{
|
|
if (!intermediateNode)
|
|
result = NS_ERROR_NULL_POINTER;
|
|
if (NS_FAILED(result)) {
|
|
break;
|
|
}
|
|
// get the next sibling before moving the current child!!!
|
|
intermediateNode->GetNextSibling(getter_AddRefs(nextSibling));
|
|
result = Inherited::DeleteNode(intermediateNode);
|
|
if (NS_SUCCEEDED(result)) {
|
|
result = Inherited::InsertNode(intermediateNode, newStyleNode, childIndex);
|
|
childIndex++;
|
|
}
|
|
intermediateNode = do_QueryInterface(nextSibling);
|
|
}
|
|
if (NS_SUCCEEDED(result))
|
|
{ // move the left half of the end node into the new style node
|
|
result = Inherited::DeleteNode(newRightTextNode);
|
|
if (NS_SUCCEEDED(result))
|
|
{
|
|
result = Inherited::InsertNode(newRightTextNode, newStyleNode, childIndex);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTextEditor::SetTextPropertiesForNodeWithDifferentParents(nsIDOMRange *aRange,
|
|
nsIDOMNode *aStartNode,
|
|
PRInt32 aStartOffset,
|
|
nsIDOMNode *aEndNode,
|
|
PRInt32 aEndOffset,
|
|
nsIDOMNode *aParent,
|
|
nsIAtom *aPropName)
|
|
{
|
|
nsresult result=NS_OK;
|
|
if (!aRange || !aStartNode || !aEndNode || !aParent || !aPropName)
|
|
return NS_ERROR_NULL_POINTER;
|
|
// create a style node for the text in the start parent
|
|
nsCOMPtr<nsIDOMNode>parent;
|
|
result = aStartNode->GetParentNode(getter_AddRefs(parent));
|
|
if (NS_FAILED(result)) {
|
|
return result;
|
|
}
|
|
nsCOMPtr<nsIDOMCharacterData>nodeAsChar;
|
|
nodeAsChar = do_QueryInterface(aStartNode);
|
|
if (!nodeAsChar)
|
|
return NS_ERROR_FAILURE;
|
|
PRUint32 count;
|
|
nodeAsChar->GetLength(&count);
|
|
result = SetTextPropertiesForNode(aStartNode, parent, aStartOffset, count, aPropName);
|
|
|
|
// create a style node for the text in the end parent
|
|
result = aEndNode->GetParentNode(getter_AddRefs(parent));
|
|
if (NS_FAILED(result)) {
|
|
return result;
|
|
}
|
|
nodeAsChar = do_QueryInterface(aEndNode);
|
|
if (!nodeAsChar)
|
|
return NS_ERROR_FAILURE;
|
|
nodeAsChar->GetLength(&count);
|
|
result = SetTextPropertiesForNode(aEndNode, parent, 0, aEndOffset, aPropName);
|
|
|
|
// create style nodes for all the content between the start and end nodes
|
|
nsCOMPtr<nsIContentIterator>iter;
|
|
result = nsComponentManager::CreateInstance(kCContentIteratorCID, nsnull,
|
|
kIContentIteratorIID, getter_AddRefs(iter));
|
|
if ((NS_SUCCEEDED(result)) && iter)
|
|
{
|
|
nsCOMPtr<nsIContent>startContent;
|
|
startContent = do_QueryInterface(aStartNode);
|
|
nsCOMPtr<nsIContent>endContent;
|
|
endContent = do_QueryInterface(aEndNode);
|
|
if (startContent && endContent)
|
|
{
|
|
iter->Init(aRange);
|
|
nsCOMPtr<nsIContent> content;
|
|
iter->CurrentNode(getter_AddRefs(content));
|
|
nsAutoString tag;
|
|
result = SetTagFromProperty(tag, aPropName);
|
|
if (NS_FAILED(result)) {
|
|
return result;
|
|
}
|
|
while (NS_COMFALSE == iter->IsDone())
|
|
{
|
|
if ((content.get() != startContent.get()) &&
|
|
(content.get() != endContent.get()))
|
|
{
|
|
nsCOMPtr<nsIDOMCharacterData>charNode;
|
|
charNode = do_QueryInterface(content);
|
|
if (charNode)
|
|
{
|
|
// only want to wrap the text node in a new style node if it doesn't already have that style
|
|
nsCOMPtr<nsIDOMNode>parent;
|
|
charNode->GetParentNode(getter_AddRefs(parent));
|
|
if (!parent) {
|
|
return NS_ERROR_NULL_POINTER;
|
|
}
|
|
nsCOMPtr<nsIContent>parentContent;
|
|
parentContent = do_QueryInterface(parent);
|
|
|
|
PRInt32 offsetInParent;
|
|
parentContent->IndexOf(content, offsetInParent);
|
|
|
|
nsCOMPtr<nsIDOMNode>newStyleNode;
|
|
result = Inherited::CreateNode(tag, parent, offsetInParent, getter_AddRefs(newStyleNode));
|
|
if (NS_SUCCEEDED(result) && newStyleNode) {
|
|
nsCOMPtr<nsIDOMNode>contentNode;
|
|
contentNode = do_QueryInterface(content);
|
|
result = Inherited::DeleteNode(contentNode);
|
|
if (NS_SUCCEEDED(result)) {
|
|
result = Inherited::InsertNode(contentNode, newStyleNode, 0);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
iter->Next();
|
|
result = iter->CurrentNode(getter_AddRefs(content));
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
return result;
|
|
}
|
|
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsTextEditor::SetTagFromProperty(nsAutoString &aTag, nsIAtom *aPropName) const
|
|
{
|
|
if (!aPropName) {
|
|
return NS_ERROR_NULL_POINTER;
|
|
}
|
|
if (nsIEditProperty::bold==aPropName) {
|
|
aTag = "b";
|
|
}
|
|
else if (nsIEditProperty::italic==aPropName) {
|
|
aTag = "i";
|
|
}
|
|
else {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|