/* -*- Mode: C++ tab-width: 2 indent-tabs-mode: nil c-basic-offset: 2 -*- * * The contents of this file are subject to the Netscape Public License * Version 1.0 (the "NPL") you may not use this file except in * compliance with the NPL. You may obtain a copy of the NPL at * http://www.mozilla.org/NPL/ * * Software distributed under the NPL is distributed on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL * for the specific language governing rights and limitations under the * NPL. * * The Initial Developer of this code under the NPL is Netscape * Communications Corporation. Portions created by Netscape are * Copyright (C) 1998 Netscape Communications Corporation. All Rights * Reserved. */ #include "nsTextEditor.h" #include "nsIEditorSupport.h" #include "nsEditorEventListeners.h" #include "nsIEditProperty.h" #include "nsEditProperty.h" // temporary, to get html atoms #include "nsIStreamListener.h" #include "nsIParser.h" #include "nsParserCIID.h" #include "nsIDocument.h" #include "nsIHTMLContentSink.h" #include "nsHTMLContentSinkStream.h" #include "nsHTMLToTXTSinkStream.h" #include "nsXIFDTD.h" #include "nsIDOMDocument.h" #include "nsIDOMEventReceiver.h" #include "nsIDOMKeyListener.h" #include "nsIDOMMouseListener.h" #include "nsIDOMDragListener.h" #include "nsIDOMSelection.h" #include "nsIDOMRange.h" #include "nsIDOMNodeList.h" #include "nsIDOMCharacterData.h" #include "nsIDOMElement.h" #include "nsIDOMTextListener.h" #include "nsEditorCID.h" #include "nsISupportsArray.h" #include "nsIEnumerator.h" #include "nsIContentIterator.h" #include "nsIContent.h" #include "nsLayoutCID.h" #include "nsIPresShell.h" #include "nsIStyleContext.h" #include "nsVoidArray.h" // transactions the text editor knows how to build itself #include "TransactionFactory.h" #include "PlaceholderTxn.h" #include "InsertTextTxn.h" class nsIFrame; #ifdef XP_UNIX #include #endif #ifdef XP_MAC #include #include #endif #ifdef XP_PC #include #endif #include "nsIComponentManager.h" #include "nsIServiceManager.h" #include "nsTextEditRules.h" static NS_DEFINE_IID(kIDOMEventReceiverIID, NS_IDOMEVENTRECEIVER_IID); static NS_DEFINE_IID(kIDOMMouseListenerIID, NS_IDOMMOUSELISTENER_IID); static NS_DEFINE_IID(kIDOMKeyListenerIID, NS_IDOMKEYLISTENER_IID); static NS_DEFINE_IID(kIDOMTextListenerIID, NS_IDOMTEXTLISTENER_IID); static NS_DEFINE_IID(kIDOMDragListenerIID, NS_IDOMDRAGLISTENER_IID); static NS_DEFINE_IID(kIDOMSelectionListenerIID, NS_IDOMSELECTIONLISTENER_IID); static NS_DEFINE_IID(kIEditPropertyIID, NS_IEDITPROPERTY_IID); static NS_DEFINE_CID(kEditorCID, NS_EDITOR_CID); static NS_DEFINE_IID(kIEditorIID, NS_IEDITOR_IID); static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID); static NS_DEFINE_IID(kITextEditorIID, NS_ITEXTEDITOR_IID); static NS_DEFINE_CID(kTextEditorCID, NS_TEXTEDITOR_CID); static NS_DEFINE_IID(kIContentIteratorIID, NS_ICONTENTITERTOR_IID); static NS_DEFINE_CID(kCContentIteratorCID, NS_CONTENTITERATOR_CID); static NS_DEFINE_IID(kIDOMRangeIID, NS_IDOMRANGE_IID); static NS_DEFINE_CID(kCRangeCID, NS_RANGE_CID); #ifdef NS_DEBUG static PRBool gNoisy = PR_FALSE; #else static const PRBool gNoisy = PR_FALSE; #endif /* ---------- TypeInState implementation ---------- */ // most methods are defined inline in TypeInState.h NS_IMPL_ADDREF(TypeInState) NS_IMPL_RELEASE(TypeInState) NS_IMETHODIMP TypeInState::QueryInterface(REFNSIID aIID, void** aInstancePtr) { if (nsnull == aInstancePtr) { return NS_ERROR_NULL_POINTER; } if (aIID.Equals(kISupportsIID)) { *aInstancePtr = (void*)(nsISupports*)this; NS_ADDREF_THIS(); return NS_OK; } if (aIID.Equals(kIDOMSelectionListenerIID)) { *aInstancePtr = (void*)(nsIDOMSelectionListener*)this; NS_ADDREF_THIS(); return NS_OK; } return NS_NOINTERFACE; } TypeInState::~TypeInState() { }; NS_IMETHODIMP TypeInState::NotifySelectionChanged() { Reset(); return NS_OK; }; /* ---------- nsTextEditor implementation ---------- */ nsTextEditor::nsTextEditor() { // Done in nsEditor // NS_INIT_REFCNT(); mRules = nsnull; nsEditProperty::InstanceInit(); } nsTextEditor::~nsTextEditor() { //the autopointers will clear themselves up. //but we need to also remove the listeners or we have a leak nsCOMPtr doc; nsEditor::GetDocument(getter_AddRefs(doc)); if (doc) { nsCOMPtr erP; nsresult result = doc->QueryInterface(kIDOMEventReceiverIID, getter_AddRefs(erP)); if (NS_SUCCEEDED(result) && erP) { if (mKeyListenerP) { erP->RemoveEventListenerByIID(mKeyListenerP, kIDOMKeyListenerIID); } if (mMouseListenerP) { erP->RemoveEventListenerByIID(mMouseListenerP, kIDOMMouseListenerIID); } if (mTextListenerP) { erP->RemoveEventListenerByIID(mTextListenerP, kIDOMTextListenerIID); } if (mDragListenerP) { erP->RemoveEventListenerByIID(mDragListenerP, kIDOMDragListenerIID); } } else NS_NOTREACHED("~nsTextEditor"); } if (mRules) { delete mRules; } nsEditProperty::InstanceShutdown(); } // Adds appropriate AddRef, Release, and QueryInterface methods for derived class //NS_IMPL_ISUPPORTS_INHERITED(nsTextEditor, nsEditor, nsITextEditor) //NS_IMPL_ADDREF_INHERITED(Class, Super) NS_IMETHODIMP_(nsrefcnt) nsTextEditor::AddRef(void) { return nsEditor::AddRef(); } //NS_IMPL_RELEASE_INHERITED(Class, Super) NS_IMETHODIMP_(nsrefcnt) nsTextEditor::Release(void) { return nsEditor::Release(); } //NS_IMPL_QUERY_INTERFACE_INHERITED(Class, Super, AdditionalInterface) NS_IMETHODIMP nsTextEditor::QueryInterface(REFNSIID aIID, void** aInstancePtr) { if (!aInstancePtr) return NS_ERROR_NULL_POINTER; if (aIID.Equals(nsITextEditor::GetIID())) { *aInstancePtr = NS_STATIC_CAST(nsITextEditor*, this); NS_ADDREF_THIS(); return NS_OK; } return nsEditor::QueryInterface(aIID, aInstancePtr); } NS_IMETHODIMP nsTextEditor::Init(nsIDOMDocument *aDoc, nsIPresShell *aPresShell) { NS_PRECONDITION(nsnull!=aDoc && nsnull!=aPresShell, "bad arg"); nsresult result=NS_ERROR_NULL_POINTER; if ((nsnull!=aDoc) && (nsnull!=aPresShell)) { // Init the base editor result = nsEditor::Init(aDoc, aPresShell); if (NS_OK != result) { return result; } nsCOMPtrselection; result = nsEditor::GetSelection(getter_AddRefs(selection)); if (NS_OK != result) { return result; } if (selection) { nsCOMPtrlistener; listener = do_QueryInterface(&mTypeInState); if (listener) { selection->AddSelectionListener(listener); } } // Init the rules system InitRules(); result = NS_NewEditorKeyListener(getter_AddRefs(mKeyListenerP), this); if (NS_OK != result) { return result; } result = NS_NewEditorMouseListener(getter_AddRefs(mMouseListenerP), this); if (NS_OK != result) { // drop the key listener if we couldn't get a mouse listener. mKeyListenerP = do_QueryInterface(0); return result; } result = NS_NewEditorTextListener(getter_AddRefs(mTextListenerP),this); if (NS_OK !=result) { // drop the key and mouse listeners #ifdef DEBUG_TAGUE printf("nsTextEditor.cpp: failed to get TextEvent Listener\n"); #endif mMouseListenerP = do_QueryInterface(0); mKeyListenerP = do_QueryInterface(0); return result; } result = NS_NewEditorDragListener(getter_AddRefs(mDragListenerP), this); if (NS_OK != result) { //return result; mMouseListenerP = do_QueryInterface(0); mKeyListenerP = do_QueryInterface(0); mTextListenerP = do_QueryInterface(0); } nsCOMPtr erP; result = aDoc->QueryInterface(kIDOMEventReceiverIID, getter_AddRefs(erP)); if (NS_OK != result) { mKeyListenerP = do_QueryInterface(0); mMouseListenerP = do_QueryInterface(0); //dont need these if we cant register them mTextListenerP = do_QueryInterface(0); mDragListenerP = do_QueryInterface(0); //dont need these if we cant register them return result; } //cmanske: Shouldn't we check result from this? erP->AddEventListenerByIID(mKeyListenerP, kIDOMKeyListenerIID); //erP->AddEventListener(mDragListenerP, kIDOMDragListenerIID); //erP->AddEventListener(mMouseListenerP, kIDOMMouseListenerIID); erP->AddEventListenerByIID(mTextListenerP,kIDOMTextListenerIID); result = NS_OK; EnableUndo(PR_TRUE); } return result; } void nsTextEditor::InitRules() { // instantiate the rules for this text editor // XXX: we should be told which set of rules to instantiate mRules = new nsTextEditRules(); mRules->Init(this); } NS_IMETHODIMP nsTextEditor::SetTextProperty(nsIAtom *aProperty) { if (!aProperty) return NS_ERROR_NULL_POINTER; if (gNoisy) { nsAutoString propString; aProperty->ToString(propString); char *propCString = propString.ToNewCString(); if (gNoisy) { printf("---------- nsTextEditor::SetTextProperty %s ----------\n", propCString); } delete [] propCString; } nsresult result=NS_ERROR_NOT_INITIALIZED; nsCOMPtrselection; result = nsEditor::GetSelection(getter_AddRefs(selection)); if ((NS_SUCCEEDED(result)) && selection) { PRBool isCollapsed; selection->GetIsCollapsed(&isCollapsed); if (PR_TRUE==isCollapsed) { // manipulating text attributes on a collapsed selection only sets state for the next text insertion SetTypeInStateForProperty(mTypeInState, aProperty); } else { nsEditor::BeginTransaction(); nsCOMPtr enumerator; enumerator = do_QueryInterface(selection); if (enumerator) { enumerator->First(); nsISupports *currentItem; result = enumerator->CurrentItem(¤tItem); if ((NS_SUCCEEDED(result)) && (nsnull!=currentItem)) { nsCOMPtr range( do_QueryInterface(currentItem) ); nsCOMPtrcommonParent; result = range->GetCommonParent(getter_AddRefs(commonParent)); if ((NS_SUCCEEDED(result)) && commonParent) { PRInt32 startOffset, endOffset; range->GetStartOffset(&startOffset); range->GetEndOffset(&endOffset); nsCOMPtr startParent; nsCOMPtr endParent; range->GetStartParent(getter_AddRefs(startParent)); range->GetEndParent(getter_AddRefs(endParent)); if (startParent.get()==endParent.get()) { // the range is entirely contained within a single text node // commonParent==aStartParent, so get the "real" parent of the selection startParent->GetParentNode(getter_AddRefs(commonParent)); result = SetTextPropertiesForNode(startParent, commonParent, startOffset, endOffset, aProperty); } else { nsCOMPtr startGrandParent; startParent->GetParentNode(getter_AddRefs(startGrandParent)); nsCOMPtr endGrandParent; endParent->GetParentNode(getter_AddRefs(endGrandParent)); if (NS_SUCCEEDED(result)) { PRBool canCollapseStyleNode = PR_FALSE; if (endGrandParent.get()==startGrandParent.get()) { result = IntermediateNodesAreInline(range, startParent, startOffset, endParent, endOffset, startGrandParent, canCollapseStyleNode); } if (NS_SUCCEEDED(result)) { if (PR_TRUE==canCollapseStyleNode) { // the range is between 2 nodes that have a common (immediate) grandparent, // and any intermediate nodes are just inline style nodes result = SetTextPropertiesForNodesWithSameParent(startParent,startOffset, endParent, endOffset, commonParent, aProperty); } else { // the range is between 2 nodes that have no simple relationship result = SetTextPropertiesForNodeWithDifferentParents(range, startParent,startOffset, endParent, endOffset, commonParent, aProperty); } } } } if (NS_SUCCEEDED(result)) { // compute a range for the selection // don't want to actually do anything with selection, because // we are still iterating through it. Just want to create and remember // an nsIDOMRange, and later add the range to the selection after clearing it. // XXX: I'm blocked here because nsIDOMSelection doesn't provide a mechanism // for setting a compound selection yet. } } } } nsEditor::EndTransaction(); } if (NS_SUCCEEDED(result)) { // set the selection // XXX: can't do anything until I can create ranges } } if (gNoisy) {DebugDumpContent(); } // DEBUG return result; } NS_IMETHODIMP nsTextEditor::GetTextProperty(nsIAtom *aProperty, PRBool &aFirst, PRBool &aAny, PRBool &aAll) { if (!aProperty) return NS_ERROR_NULL_POINTER; if (gNoisy) { nsAutoString propString; aProperty->ToString(propString); char *propCString = propString.ToNewCString(); if (gNoisy) { printf("nsTextEditor::GetTextProperty %s\n", propCString); } delete [] propCString; } nsresult result=NS_ERROR_NOT_INITIALIZED; aAny=PR_FALSE; aAll=PR_TRUE; aFirst=PR_FALSE; PRBool first=PR_TRUE; nsCOMPtrselection; result = nsEditor::GetSelection(getter_AddRefs(selection)); if ((NS_SUCCEEDED(result)) && selection) { nsCOMPtr enumerator; enumerator = do_QueryInterface(selection); if (enumerator) { enumerator->First(); nsISupports *currentItem; result = enumerator->CurrentItem(¤tItem); // XXX: should be a while loop, to get each separate range if ((NS_SUCCEEDED(result)) && currentItem) { PRBool firstNodeInRange = PR_TRUE; // for each range, set a flag nsCOMPtr range( do_QueryInterface(currentItem) ); nsCOMPtr iter; result = nsComponentManager::CreateInstance(kCContentIteratorCID, nsnull, kIContentIteratorIID, getter_AddRefs(iter)); if ((NS_SUCCEEDED(result)) && iter) { iter->Init(range); // loop through the content iterator for each content node // for each text node: // get the frame for the content, and from it the style context // ask the style context about the property nsCOMPtr content; result = iter->CurrentNode(getter_AddRefs(content)); while (NS_COMFALSE == iter->IsDone()) { if (gNoisy) { printf(" checking node %p\n", content.get()); } nsCOMPtrtext; text = do_QueryInterface(content); if (text) { PRBool skipNode = PR_FALSE; if (PR_TRUE==first && PR_TRUE==firstNodeInRange) { firstNodeInRange = PR_FALSE; PRInt32 startOffset; range->GetStartOffset(&startOffset); PRUint32 count; text->GetLength(&count); if (startOffset==(PRInt32)count) { if (gNoisy) { printf(" skipping node %p\n", content.get()); } skipNode = PR_TRUE; } } if (PR_FALSE==skipNode) { nsCOMPtrnode; node = do_QueryInterface(content); if (node) { PRBool isSet; nsCOMPtrresultNode; IsTextPropertySetByContent(node, aProperty, isSet, getter_AddRefs(resultNode)); if (PR_TRUE==first) { aFirst = isSet; first = PR_FALSE; } if (PR_TRUE==isSet) { aAny = PR_TRUE; } else { aAll = PR_FALSE; } } } } iter->Next(); result = iter->CurrentNode(getter_AddRefs(content)); } } } } } if (gNoisy) { printf(" returning first=%d any=%d all=%d\n", aFirst, aAny, aAll); } return result; } void nsTextEditor::IsTextStyleSet(nsIStyleContext *aSC, nsIAtom *aProperty, PRBool &aIsSet) const { aIsSet = PR_FALSE; if (aSC && aProperty) { nsStyleFont* font = (nsStyleFont*)aSC->GetStyleData(eStyleStruct_Font); if (nsIEditProperty::i==aProperty) { aIsSet = PRBool(font->mFont.style & NS_FONT_STYLE_ITALIC); } else if (nsIEditProperty::b==aProperty) { // XXX: check this logic with Peter aIsSet = PRBool(font->mFont.weight > NS_FONT_WEIGHT_NORMAL); } } } void nsTextEditor::IsTextPropertySetByContent(nsIDOMNode *aNode, nsIAtom *aProperty, PRBool &aIsSet, nsIDOMNode **aStyleNode) const { nsresult result; aIsSet = PR_FALSE; nsAutoString propName; aProperty->ToString(propName); nsCOMPtrparent; result = aNode->GetParentNode(getter_AddRefs(parent)); while (NS_SUCCEEDED(result) && parent) { nsCOMPtrelement; element = do_QueryInterface(parent); if (element) { nsString tag; element->GetTagName(tag); if (propName.Equals(tag)) { aIsSet = PR_TRUE; break; } } nsCOMPtrtemp; result = parent->GetParentNode(getter_AddRefs(temp)); if (NS_SUCCEEDED(result) && temp) { parent = do_QueryInterface(temp); } else { parent = do_QueryInterface(nsnull); } } } NS_IMETHODIMP nsTextEditor::RemoveTextProperty(nsIAtom *aProperty) { if (!aProperty) return NS_ERROR_NULL_POINTER; if (gNoisy) { nsAutoString propString; aProperty->ToString(propString); char *propCString = propString.ToNewCString(); if (gNoisy) { printf("---------- nsTextEditor::RemoveTextProperty %s ----------\n", propCString); } delete [] propCString; } nsresult result=NS_ERROR_NOT_INITIALIZED; nsCOMPtrselection; result = nsEditor::GetSelection(getter_AddRefs(selection)); if ((NS_SUCCEEDED(result)) && selection) { PRBool isCollapsed; selection->GetIsCollapsed(&isCollapsed); if (PR_TRUE==isCollapsed) { // manipulating text attributes on a collapsed selection only sets state for the next text insertion SetTypeInStateForProperty(mTypeInState, aProperty); } else { nsEditor::BeginTransaction(); nsCOMPtr enumerator; enumerator = do_QueryInterface(selection); if (enumerator) { enumerator->First(); nsISupports *currentItem; result = enumerator->CurrentItem(¤tItem); if ((NS_SUCCEEDED(result)) && (nsnull!=currentItem)) { nsCOMPtr range( do_QueryInterface(currentItem) ); nsCOMPtrcommonParent; result = range->GetCommonParent(getter_AddRefs(commonParent)); if ((NS_SUCCEEDED(result)) && commonParent) { PRInt32 startOffset, endOffset; range->GetStartOffset(&startOffset); range->GetEndOffset(&endOffset); nsCOMPtr startParent; nsCOMPtr endParent; range->GetStartParent(getter_AddRefs(startParent)); range->GetEndParent(getter_AddRefs(endParent)); if (startParent.get()==endParent.get()) { // the range is entirely contained within a single text node // commonParent==aStartParent, so get the "real" parent of the selection startParent->GetParentNode(getter_AddRefs(commonParent)); result = RemoveTextPropertiesForNode(startParent, commonParent, startOffset, endOffset, aProperty); } else { nsCOMPtr startGrandParent; startParent->GetParentNode(getter_AddRefs(startGrandParent)); nsCOMPtr endGrandParent; endParent->GetParentNode(getter_AddRefs(endGrandParent)); if (NS_SUCCEEDED(result)) { PRBool canCollapseStyleNode = PR_FALSE; if (endGrandParent.get()==startGrandParent.get()) { result = IntermediateNodesAreInline(range, startParent, startOffset, endParent, endOffset, startGrandParent, canCollapseStyleNode); } if (NS_SUCCEEDED(result)) { if (PR_TRUE==canCollapseStyleNode) { // the range is between 2 nodes that have a common (immediate) grandparent, // and any intermediate nodes are just inline style nodes result = RemoveTextPropertiesForNodesWithSameParent(startParent,startOffset, endParent, endOffset, commonParent, aProperty); } else { // the range is between 2 nodes that have no simple relationship result = RemoveTextPropertiesForNodeWithDifferentParents(range, startParent,startOffset, endParent, endOffset, commonParent, aProperty); } } } } if (NS_SUCCEEDED(result)) { // compute a range for the selection // don't want to actually do anything with selection, because // we are still iterating through it. Just want to create and remember // an nsIDOMRange, and later add the range to the selection after clearing it. // XXX: I'm blocked here because nsIDOMSelection doesn't provide a mechanism // for setting a compound selection yet. } } } } nsEditor::EndTransaction(); } if (NS_SUCCEEDED(result)) { // set the selection // XXX: can't do anything until I can create ranges } } return result; } NS_IMETHODIMP nsTextEditor::DeleteSelection(nsIEditor::Direction aDir) { if (!mRules) { return NS_ERROR_NOT_INITIALIZED; } nsCOMPtr selection; PRBool cancel= PR_FALSE; nsresult result = nsEditor::BeginTransaction(); if (NS_FAILED(result)) { return result; } // pre-process nsEditor::GetSelection(getter_AddRefs(selection)); nsTextRulesInfo ruleInfo(nsTextEditRules::kDeleteSelection); result = mRules->WillDoAction(selection, &ruleInfo, &cancel); if ((PR_FALSE==cancel) && (NS_SUCCEEDED(result))) { result = nsEditor::DeleteSelection(aDir); // post-process result = mRules->DidDoAction(selection, &ruleInfo, result); } nsresult endTxnResult = nsEditor::EndTransaction(); // don't return this result! NS_ASSERTION ((NS_SUCCEEDED(endTxnResult)), "bad end transaction result"); // XXXX: Horrible hack! We are doing this because // of an error in Gecko which is not rendering the // document after a change via the DOM - gpk 2/13/99 // BEGIN HACK!!! HACKForceRedraw(); // END HACK return result; } NS_IMETHODIMP nsTextEditor::InsertText(const nsString& aStringToInsert) { if (!mRules) { return NS_ERROR_NOT_INITIALIZED; } nsCOMPtr selection; PRBool cancel= PR_FALSE; // pre-process nsEditor::GetSelection(getter_AddRefs(selection)); nsString resultString; PlaceholderTxn *placeholderTxn=nsnull; nsTextRulesInfo ruleInfo(nsTextEditRules::kInsertText); ruleInfo.placeTxn = &placeholderTxn; ruleInfo.inString = &aStringToInsert; ruleInfo.outString = &resultString; ruleInfo.typeInState = mTypeInState; nsresult result = mRules->WillDoAction(selection, &ruleInfo, &cancel); if ((PR_FALSE==cancel) && (NS_SUCCEEDED(result))) { result = nsEditor::InsertText(aStringToInsert); // post-process result = mRules->DidDoAction(selection, &ruleInfo, result); } if (placeholderTxn) placeholderTxn->SetAbsorb(PR_FALSE); // this ends the merging of txns into placeholderTxn // BEGIN HACK!!! HACKForceRedraw(); // END HACK return result; } NS_IMETHODIMP nsTextEditor::InsertBreak() { // For plainttext just pass newlines through nsAutoString key; key += '\n'; return InsertText(key); } NS_IMETHODIMP nsTextEditor::EnableUndo(PRBool aEnable) { return nsEditor::EnableUndo(aEnable); } NS_IMETHODIMP nsTextEditor::Undo(PRUint32 aCount) { nsCOMPtr selection; PRBool cancel= PR_FALSE; // pre-process nsEditor::GetSelection(getter_AddRefs(selection)); nsTextRulesInfo ruleInfo(nsTextEditRules::kUndo); nsresult result = mRules->WillDoAction(selection, &ruleInfo, &cancel); if ((PR_FALSE==cancel) && (NS_SUCCEEDED(result))) { result = nsEditor::Undo(aCount); nsEditor::GetSelection(getter_AddRefs(selection)); result = mRules->DidDoAction(selection, &ruleInfo, result); } return result; } NS_IMETHODIMP nsTextEditor::CanUndo(PRBool &aIsEnabled, PRBool &aCanUndo) { return nsEditor::CanUndo(aIsEnabled, aCanUndo); } NS_IMETHODIMP nsTextEditor::Redo(PRUint32 aCount) { nsCOMPtr selection; PRBool cancel= PR_FALSE; // pre-process nsEditor::GetSelection(getter_AddRefs(selection)); nsTextRulesInfo ruleInfo(nsTextEditRules::kRedo); nsresult result = mRules->WillDoAction(selection, &ruleInfo, &cancel); if ((PR_FALSE==cancel) && (NS_SUCCEEDED(result))) { result = nsEditor::Redo(aCount); nsEditor::GetSelection(getter_AddRefs(selection)); result = mRules->DidDoAction(selection, &ruleInfo, result); } return result; } NS_IMETHODIMP nsTextEditor::CanRedo(PRBool &aIsEnabled, PRBool &aCanRedo) { return nsEditor::CanRedo(aIsEnabled, aCanRedo); } NS_IMETHODIMP nsTextEditor::BeginTransaction() { return nsEditor::BeginTransaction(); } NS_IMETHODIMP nsTextEditor::EndTransaction() { return nsEditor::EndTransaction(); } NS_IMETHODIMP nsTextEditor::MoveSelectionUp(nsIAtom *aIncrement, PRBool aExtendSelection) { return NS_ERROR_NOT_IMPLEMENTED; } NS_IMETHODIMP nsTextEditor::MoveSelectionDown(nsIAtom *aIncrement, PRBool aExtendSelection) { return NS_ERROR_NOT_IMPLEMENTED; } NS_IMETHODIMP nsTextEditor::MoveSelectionNext(nsIAtom *aIncrement, PRBool aExtendSelection) { return NS_ERROR_NOT_IMPLEMENTED; } NS_IMETHODIMP nsTextEditor::MoveSelectionPrevious(nsIAtom *aIncrement, PRBool aExtendSelection) { return NS_ERROR_NOT_IMPLEMENTED; } NS_IMETHODIMP nsTextEditor::SelectNext(nsIAtom *aIncrement, PRBool aExtendSelection) { return NS_ERROR_NOT_IMPLEMENTED; } NS_IMETHODIMP nsTextEditor::SelectPrevious(nsIAtom *aIncrement, PRBool aExtendSelection) { return NS_ERROR_NOT_IMPLEMENTED; } NS_IMETHODIMP nsTextEditor::SelectAll() { return nsEditor::SelectAll(); } NS_IMETHODIMP nsTextEditor::ScrollUp(nsIAtom *aIncrement) { return NS_ERROR_NOT_IMPLEMENTED; } NS_IMETHODIMP nsTextEditor::ScrollDown(nsIAtom *aIncrement) { return NS_ERROR_NOT_IMPLEMENTED; } NS_IMETHODIMP nsTextEditor::ScrollIntoView(PRBool aScrollToBegin) { return nsEditor::ScrollIntoView(aScrollToBegin); } NS_IMETHODIMP nsTextEditor::Cut() { return nsEditor::Cut(); } NS_IMETHODIMP nsTextEditor::Copy() { return nsEditor::Copy(); } NS_IMETHODIMP nsTextEditor::Paste() { return nsEditor::Paste(); } NS_IMETHODIMP nsTextEditor::Insert(nsString& aInputString) { printf("nsTextEditor::Insert not yet implemented\n"); return NS_ERROR_NOT_IMPLEMENTED; } #ifdef XP_MAC static void WriteFromStringstream(stringstream& aIn, nsString& aOutputString) { string theString = aIn.str(); aOutputString.SetLength(0); // empty the string aOutputString += theString.data(); aOutputString.SetLength(theString.length()); // make sure it's terminated /* relace LF with CR. Don't do this here, because strings passed out to JavaScript need LF termination. PRUnichar lineFeed = '\n'; PRUnichar carriageReturn = '\r'; aOutputString.ReplaceChar(lineFeed, carriageReturn); */ } #else static void WriteFromOstrstream(ostrstream& aIn, nsString& aOutputString) { char* strData = aIn.str(); // get a copy of the buffer (unterminated) aOutputString.SetLength(0); // empty the string aOutputString += strData; aOutputString.SetLength(aIn.pcount()); // terminate // 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 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 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) { if (gNoisy) { printf("nsTextEditor::SetTextPropertyForNode\n"); } nsresult result=NS_OK; nsCOMPtrnodeAsChar; nodeAsChar = do_QueryInterface(aNode); if (!nodeAsChar) return NS_ERROR_FAILURE; PRBool textPropertySet; nsCOMPtrresultNode; IsTextPropertySetByContent(aNode, aPropName, textPropertySet, getter_AddRefs(resultNode)); if (PR_FALSE==textPropertySet) { PRUint32 count; nodeAsChar->GetLength(&count); nsCOMPtrnewTextNode; // this will be the text node we move into the new style node if (aStartOffset!=0) { result = nsEditor::SplitNode(aNode, aStartOffset, getter_AddRefs(newTextNode)); } if (NS_SUCCEEDED(result)) { if (aEndOffset!=(PRInt32)count) { result = nsEditor::SplitNode(aNode, aEndOffset-aStartOffset, getter_AddRefs(newTextNode)); } else { newTextNode = do_QueryInterface(aNode); } if (NS_SUCCEEDED(result)) { nsAutoString tag; aPropName->ToString(tag); PRInt32 offsetInParent; result = nsIEditorSupport::GetChildOffset(aNode, aParent, offsetInParent); if (NS_SUCCEEDED(result)) { nsCOMPtrnewStyleNode; result = nsEditor::CreateNode(tag, aParent, offsetInParent, getter_AddRefs(newStyleNode)); if (NS_SUCCEEDED(result)) { result = nsEditor::DeleteNode(newTextNode); if (NS_SUCCEEDED(result)) { result = nsEditor::InsertNode(newTextNode, newStyleNode, 0); if (NS_SUCCEEDED(result)) { // set the selection nsCOMPtrselection; result = nsEditor::GetSelection(getter_AddRefs(selection)); if (NS_SUCCEEDED(result)) { selection->Collapse(newTextNode, 0); PRInt32 endOffset = aEndOffset-aStartOffset; selection->Extend(newTextNode, endOffset); } } } } } } } } return result; } // content-based inline vs. block query NS_IMETHODIMP nsTextEditor::IsNodeInline(nsIDOMNode *aNode, PRBool &aIsInline) const { // this is a content-based implementation if (!aNode) { return NS_ERROR_NULL_POINTER; } nsresult result; aIsInline = PR_FALSE; nsCOMPtrelement; element = do_QueryInterface(aNode); if (element) { nsAutoString tag; result = element->GetTagName(tag); if (NS_SUCCEEDED(result)) { nsIAtom *tagAtom = NS_NewAtom(tag); if (!tagAtom) { return NS_ERROR_NULL_POINTER; } if (tagAtom==nsIEditProperty::a || tagAtom==nsIEditProperty::b || tagAtom==nsIEditProperty::big || tagAtom==nsIEditProperty::font || tagAtom==nsIEditProperty::i || tagAtom==nsIEditProperty::span || tagAtom==nsIEditProperty::small || tagAtom==nsIEditProperty::strike || tagAtom==nsIEditProperty::sub || tagAtom==nsIEditProperty::sup || tagAtom==nsIEditProperty::tt || tagAtom==nsIEditProperty::u ) { aIsInline = PR_TRUE; } } } return NS_OK; } NS_IMETHODIMP nsTextEditor::IntermediateNodesAreInline(nsIDOMRange *aRange, nsIDOMNode *aStartNode, PRInt32 aStartOffset, nsIDOMNode *aEndNode, PRInt32 aEndOffset, nsIDOMNode *aParent, PRBool &aResult) const { aResult = PR_TRUE; // init out param. we assume the condition is true unless we find a node that violates it if (!aStartNode || !aEndNode || !aParent) { return NS_ERROR_NULL_POINTER; } nsCOMPtriter; nsresult result; result = nsComponentManager::CreateInstance(kCContentIteratorCID, nsnull, kIContentIteratorIID, getter_AddRefs(iter)); //XXX: maybe CreateInstance is expensive, and I should keep around a static iter? // as long as this method can't be called recursively or re-entrantly! if ((NS_SUCCEEDED(result)) && iter) { nsCOMPtrstartContent; startContent = do_QueryInterface(aStartNode); nsCOMPtrendContent; endContent = do_QueryInterface(aEndNode); if (startContent && endContent) { iter->Init(aRange); nsCOMPtr content; iter->CurrentNode(getter_AddRefs(content)); while (NS_COMFALSE == iter->IsDone()) { if ((content.get() != startContent.get()) && (content.get() != endContent.get())) { nsCOMPtrcurrentNode; currentNode = do_QueryInterface(content); PRBool isInline=PR_FALSE; IsNodeInline(currentNode, isInline); if (PR_FALSE==isInline) { nsCOMPtrnodeAsText; nodeAsText = do_QueryInterface(currentNode); if (!nodeAsText) // text nodes don't count in this check, so ignore them { aResult = PR_FALSE; break; } } } /* do not check result here, and especially do not return the result code. * we rely on iter->IsDone to tell us when the iteration is complete */ iter->Next(); iter->CurrentNode(getter_AddRefs(content)); } } } return result; } /* this should only get called if the only intervening nodes are inline style nodes */ NS_IMETHODIMP nsTextEditor::SetTextPropertiesForNodesWithSameParent(nsIDOMNode *aStartNode, PRInt32 aStartOffset, nsIDOMNode *aEndNode, PRInt32 aEndOffset, nsIDOMNode *aParent, nsIAtom *aPropName) { if (gNoisy) { printf("nsTextEditor::SetTextPropertiesForNodesWithSameParent\n"); } nsresult result=NS_OK; PRBool textPropertySet; nsCOMPtrresultNode; IsTextPropertySetByContent(aStartNode, aPropName, textPropertySet, getter_AddRefs(resultNode)); if (PR_FALSE==textPropertySet) { nsCOMPtrnewLeftTextNode; // this will be the middle text node if (0!=aStartOffset) { result = nsEditor::SplitNode(aStartNode, aStartOffset, getter_AddRefs(newLeftTextNode)); } if (NS_SUCCEEDED(result)) { nsCOMPtrendNodeAsChar; endNodeAsChar = do_QueryInterface(aEndNode); if (!endNodeAsChar) return NS_ERROR_FAILURE; PRUint32 count; endNodeAsChar->GetLength(&count); nsCOMPtrnewRightTextNode; // this will be the middle text node if ((PRInt32)count!=aEndOffset) { result = nsEditor::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; aPropName->ToString(tag); // create the new style node, which will be the new parent for the selected nodes nsCOMPtrnewStyleNode; result = nsEditor::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 nsCOMPtrintermediateNode; result = aStartNode->GetNextSibling(getter_AddRefs(intermediateNode)); if (NS_SUCCEEDED(result)) { result = nsEditor::DeleteNode(aStartNode); if (NS_SUCCEEDED(result)) { PRInt32 childIndex=0; result = nsEditor::InsertNode(aStartNode, newStyleNode, childIndex); childIndex++; if (NS_SUCCEEDED(result)) { // move all the intermediate nodes into the new style node nsCOMPtrnextSibling; 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 = nsEditor::DeleteNode(intermediateNode); if (NS_SUCCEEDED(result)) { result = nsEditor::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 = nsEditor::DeleteNode(newRightTextNode); if (NS_SUCCEEDED(result)) { result = nsEditor::InsertNode(newRightTextNode, newStyleNode, childIndex); } } } } } } } } } } return result; } /* this wraps every selected text node in a new inline style node if needed the text nodes are treated as being unique -- each needs it's own style node if the style is not already present. each action has immediate effect on the content tree and resolved style, so doing outermost text nodes first removes the need for interior style nodes in some cases. XXX: need to code test to see if new style node is needed */ NS_IMETHODIMP nsTextEditor::SetTextPropertiesForNodeWithDifferentParents(nsIDOMRange *aRange, nsIDOMNode *aStartNode, PRInt32 aStartOffset, nsIDOMNode *aEndNode, PRInt32 aEndOffset, nsIDOMNode *aParent, nsIAtom *aPropName) { if (gNoisy) { printf("nsTextEditor::SetTextPropertiesForNodeWithDifferentParents\n"); } 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 nsCOMPtrparent; result = aStartNode->GetParentNode(getter_AddRefs(parent)); if (NS_FAILED(result)) { return result; } // create style nodes for all the content between the start and end nodes nsCOMPtriter; result = nsComponentManager::CreateInstance(kCContentIteratorCID, nsnull, kIContentIteratorIID, getter_AddRefs(iter)); if ((NS_SUCCEEDED(result)) && iter) { nsCOMPtrstartContent; startContent = do_QueryInterface(aStartNode); nsCOMPtrendContent; endContent = do_QueryInterface(aEndNode); if (startContent && endContent) { iter->Init(aRange); nsCOMPtr content; iter->CurrentNode(getter_AddRefs(content)); nsAutoString tag; aPropName->ToString(tag); while (NS_COMFALSE == iter->IsDone()) { if ((content.get() != startContent.get()) && (content.get() != endContent.get())) { nsCOMPtrcharNode; 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 nsCOMPtrnode; node = do_QueryInterface(content); PRBool textPropertySet; nsCOMPtrresultNode; IsTextPropertySetByContent(node, aPropName, textPropertySet, getter_AddRefs(resultNode)); if (PR_FALSE==textPropertySet) { nsCOMPtrparent; charNode->GetParentNode(getter_AddRefs(parent)); if (!parent) { return NS_ERROR_NULL_POINTER; } nsCOMPtrparentContent; parentContent = do_QueryInterface(parent); PRInt32 offsetInParent; parentContent->IndexOf(content, offsetInParent); nsCOMPtrnewStyleNode; result = nsEditor::CreateNode(tag, parent, offsetInParent, getter_AddRefs(newStyleNode)); if (NS_SUCCEEDED(result) && newStyleNode) { nsCOMPtrcontentNode; contentNode = do_QueryInterface(content); result = nsEditor::DeleteNode(contentNode); if (NS_SUCCEEDED(result)) { result = nsEditor::InsertNode(contentNode, newStyleNode, 0); } } } } } // note we don't check the result, we just rely on iter->IsDone iter->Next(); result = iter->CurrentNode(getter_AddRefs(content)); } } } // create a style node for the text in the start parent nsCOMPtrnodeAsChar; 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); return result; } NS_IMETHODIMP nsTextEditor::RemoveTextPropertiesForNode(nsIDOMNode *aNode, nsIDOMNode *aParent, PRInt32 aStartOffset, PRInt32 aEndOffset, nsIAtom *aPropName) { if (gNoisy) { printf("nsTextEditor::RemoveTextPropertyForNode\n"); } nsresult result=NS_OK; nsCOMPtrnodeAsChar; nodeAsChar = do_QueryInterface(aNode); PRBool textPropertySet; nsCOMPtrresultNode; IsTextPropertySetByContent(aNode, aPropName, textPropertySet, getter_AddRefs(resultNode)); if (PR_TRUE==textPropertySet) { nsCOMPtrparent; // initially set to first interior parent node to process nsCOMPtrnewMiddleNode; // this will be the middle node after any required splits nsCOMPtrnewLeftNode; // this will be the leftmost node, // the node being split will be rightmost PRUint32 count; // if aNode is a text node, treat is specially if (nodeAsChar) { nodeAsChar->GetLength(&count); // split the node, and all parent nodes up to the style node // then promote the selected content to the parent of the style node if (0!=aStartOffset) { if (gNoisy) { printf("* splitting text node %p at %d\n", aNode, aStartOffset);} result = nsEditor::SplitNode(aNode, aStartOffset, getter_AddRefs(newLeftNode)); if (gNoisy) { printf("* split created left node %p\n", newLeftNode.get());} if (gNoisy) {DebugDumpContent(); } // DEBUG } if (NS_SUCCEEDED(result)) { if ((PRInt32)count!=aEndOffset) { if (gNoisy) { printf("* splitting text node (right node) %p at %d\n", aNode, aEndOffset-aStartOffset);} result = nsEditor::SplitNode(aNode, aEndOffset-aStartOffset, getter_AddRefs(newMiddleNode)); if (gNoisy) { printf("* split created middle node %p\n", newMiddleNode.get());} if (gNoisy) {DebugDumpContent(); } // DEBUG } else { if (gNoisy) { printf("* no need to split text node, middle to aNode\n");} newMiddleNode = do_QueryInterface(aNode); } NS_ASSERTION(newMiddleNode, "no middle node created"); // now that the text node is split, split parent nodes until we get to the style node parent = do_QueryInterface(aParent); // we know this has to succeed, no need to check } } else { newMiddleNode = do_QueryInterface(aNode); parent = do_QueryInterface(aParent); } if (NS_SUCCEEDED(result) && newMiddleNode) { // split every ancestor until we find the node that is giving us the style we want to remove // then split the style node and promote the selected content to the style node's parent while (NS_SUCCEEDED(result) && parent) { if (gNoisy) { printf("* looking at parent %p\n", parent);} // get the tag from parent and see if we're done nsCOMPtrtemp; nsCOMPtrelement; element = do_QueryInterface(parent); if (element) { nsAutoString tag; result = element->GetTagName(tag); if (gNoisy) { printf("* parent has tag %s\n", tag.ToNewCString()); } // XXX leak! if (NS_SUCCEEDED(result)) { if (PR_FALSE==tag.Equals(aPropName)) { PRInt32 offsetInParent; result = nsIEditorSupport::GetChildOffset(newMiddleNode, parent, offsetInParent); if (NS_SUCCEEDED(result)) { if (0!=offsetInParent) { if (gNoisy) { printf("* splitting parent %p at offset %d\n", parent, offsetInParent);} result = nsEditor::SplitNode(parent, offsetInParent, getter_AddRefs(newLeftNode)); if (gNoisy) { printf("* split created left node %p sibling of parent\n", newLeftNode.get());} if (gNoisy) {DebugDumpContent(); } // DEBUG } if (NS_SUCCEEDED(result)) { nsCOMPtrchildNodes; result = parent->GetChildNodes(getter_AddRefs(childNodes)); if (NS_SUCCEEDED(result) && childNodes) { childNodes->GetLength(&count); NS_ASSERTION(count>0, "bad child count in newly split node"); if ((PRInt32)count!=1) { if (gNoisy) { printf("* splitting parent %p at offset %d\n", parent, 1);} result = nsEditor::SplitNode(parent, 1, getter_AddRefs(newMiddleNode)); if (gNoisy) { printf("* split created middle node %p sibling of parent\n", newMiddleNode.get());} if (gNoisy) {DebugDumpContent(); } // DEBUG } else { if (gNoisy) { printf("* no need to split parent, newMiddleNode=parent\n");} newMiddleNode = do_QueryInterface(parent); } NS_ASSERTION(newMiddleNode, "no middle node created"); parent->GetParentNode(getter_AddRefs(temp)); parent = do_QueryInterface(temp); } } } } // else we've found the style tag (referred to by "parent") // nwMiddleNode is the node that is an ancestor to the selection else { if (gNoisy) { printf("* this is the style node\n");} PRInt32 offsetInParent; result = nsIEditorSupport::GetChildOffset(newMiddleNode, parent, offsetInParent); if (NS_SUCCEEDED(result)) { nsCOMPtrchildNodes; result = parent->GetChildNodes(getter_AddRefs(childNodes)); if (NS_SUCCEEDED(result) && childNodes) { childNodes->GetLength(&count); // if there are siblings to the right, split parent at offsetInParent+1 if ((PRInt32)count!=offsetInParent+1) { nsCOMPtrnewRightNode; nsCOMPtrtemp; if (gNoisy) { printf("* splitting parent %p at offset %d for right side\n", parent, offsetInParent+1);} result = nsEditor::SplitNode(parent, offsetInParent+1, getter_AddRefs(temp)); if (NS_SUCCEEDED(result)) { newRightNode = do_QueryInterface(parent); parent = do_QueryInterface(temp); if (gNoisy) { printf("* split created right node %p sibling of parent %p\n", newRightNode.get(), parent.get());} if (gNoisy) {DebugDumpContent(); } // DEBUG } } if (NS_SUCCEEDED(result) && 0!=offsetInParent) { if (gNoisy) { printf("* splitting parent %p at offset %d for left side\n", parent, offsetInParent);} result = nsEditor::SplitNode(parent, offsetInParent, getter_AddRefs(newLeftNode)); if (gNoisy) { printf("* split created left node %p sibling of parent %p\n", newLeftNode.get(), parent.get());} if (gNoisy) {DebugDumpContent(); } // DEBUG } if (NS_SUCCEEDED(result)) { // promote the selection to the grandparent // first, determine the child's position in it's parent PRInt32 childPositionInParent; nsIEditorSupport::GetChildOffset(newMiddleNode, parent, childPositionInParent); // compare childPositionInParent to the number of children in parent PRUint32 count=0; nsCOMPtrchildNodes; result = parent->GetChildNodes(getter_AddRefs(childNodes)); if (NS_SUCCEEDED(result) && childNodes) { childNodes->GetLength(&count); } PRBool insertAfter = PR_FALSE; // if they're equal, we'll insert newMiddleNode in grandParent after the parent if ((PRInt32)count==childPositionInParent) { insertAfter = PR_TRUE; } // now that we know where to put newMiddleNode, do it. nsCOMPtrgrandParent; result = parent->GetParentNode(getter_AddRefs(grandParent)); if (NS_SUCCEEDED(result) && grandParent) { if (gNoisy) { printf("* deleting middle node %p\n", newMiddleNode.get());} result = nsEditor::DeleteNode(newMiddleNode); if (gNoisy) {DebugDumpContent(); } // DEBUG if (NS_SUCCEEDED(result)) { PRInt32 position; result = nsIEditorSupport::GetChildOffset(parent, grandParent, position); if (NS_SUCCEEDED(result)) { if (PR_TRUE==insertAfter) { if (gNoisy) {printf("insertAfter=PR_TRUE, incr. position\n"); } position++; } if (gNoisy) { printf("* inserting node %p in grandparent %p at offset %d\n", newMiddleNode.get(), grandParent.get(), position); } result = nsEditor::InsertNode(newMiddleNode, grandParent, position); if (gNoisy) {DebugDumpContent(); } // DEBUG if (NS_SUCCEEDED(result)) { PRBool hasChildren=PR_TRUE; parent->HasChildNodes(&hasChildren); if (PR_FALSE==hasChildren) { if (gNoisy) { printf("* deleting empty style node %p\n", parent.get());} result = nsEditor::DeleteNode(parent); if (gNoisy) {DebugDumpContent(); } // DEBUG } } } } } } } } break; } } } } } } return result; } /* this should only get called if the only intervening nodes are inline style nodes */ NS_IMETHODIMP nsTextEditor::RemoveTextPropertiesForNodesWithSameParent(nsIDOMNode *aStartNode, PRInt32 aStartOffset, nsIDOMNode *aEndNode, PRInt32 aEndOffset, nsIDOMNode *aParent, nsIAtom *aPropName) { if (gNoisy) { printf("nsTextEditor::RemoveTextPropertiesForNodesWithSameParent\n"); } nsresult result=NS_OK; PRInt32 startOffset = aStartOffset; PRInt32 endOffset; nsCOMPtrnodeAsChar; nsCOMPtrparentNode = do_QueryInterface(aParent); // remove aPropName from all intermediate nodes nsCOMPtrsiblingNode; nsCOMPtrnextSiblingNode; // temp to hold the next node in the list result = aStartNode->GetNextSibling(getter_AddRefs(siblingNode)); while (siblingNode && NS_SUCCEEDED(result)) { // get next sibling right away, before we move siblingNode! siblingNode->GetNextSibling(getter_AddRefs(nextSiblingNode)); if (aEndNode==siblingNode.get()) { // found the end node, handle that below break; } else { // found a sibling node between aStartNode and aEndNode, remove the style node PRUint32 childCount=0; nodeAsChar = do_QueryInterface(siblingNode); if (nodeAsChar) { nodeAsChar->GetLength(&childCount); } else { nsCOMPtrgrandChildNodes; result = siblingNode->GetChildNodes(getter_AddRefs(grandChildNodes)); if (NS_SUCCEEDED(result) && grandChildNodes) { grandChildNodes->GetLength(&childCount); } if (0==childCount) { // node has no children // XXX: for now, I think that's ok. just pass in 0 } } if (NS_SUCCEEDED(result)) { siblingNode->GetParentNode(getter_AddRefs(parentNode)); result = RemoveTextPropertiesForNode(siblingNode, parentNode, 0, childCount, aPropName); } } siblingNode = do_QueryInterface(nextSiblingNode); } if (NS_SUCCEEDED(result)) { // remove aPropName from aStartNode nsCOMPtrnodeAsChar; nodeAsChar = do_QueryInterface(aStartNode); if (nodeAsChar) { nodeAsChar->GetLength((PRUint32 *)&endOffset); } else { if (gNoisy) { printf("not yet supported\n");} return NS_ERROR_NOT_IMPLEMENTED; } result = aStartNode->GetParentNode(getter_AddRefs(parentNode)); if (NS_SUCCEEDED(result)) { result = RemoveTextPropertiesForNode(aStartNode, parentNode, startOffset, endOffset, aPropName); } } if (NS_SUCCEEDED(result)) { // remove aPropName from the end node startOffset = 0; endOffset = aEndOffset; result = aEndNode->GetParentNode(getter_AddRefs(parentNode)); if (NS_SUCCEEDED(result)) { result = RemoveTextPropertiesForNode(aEndNode, parentNode, startOffset, endOffset, aPropName); } } return result; } NS_IMETHODIMP nsTextEditor::RemoveTextPropertiesForNodeWithDifferentParents(nsIDOMRange *aRange, nsIDOMNode *aStartNode, PRInt32 aStartOffset, nsIDOMNode *aEndNode, PRInt32 aEndOffset, nsIDOMNode *aParent, nsIAtom *aPropName) { if (gNoisy) { printf("nsTextEditor::RemoveTextPropertiesForNodeWithDifferentParents\n"); } nsresult result=NS_OK; if (!aRange || !aStartNode || !aEndNode || !aParent || !aPropName) return NS_ERROR_NULL_POINTER; PRInt32 rangeStartOffset = aStartOffset; // used to construct a range for the nodes between PRInt32 rangeEndOffset = aEndOffset; // aStartNode and aEndNode after we've processed those endpoints // delete the style node for the text in the start parent PRBool skippedStartNode = PR_FALSE; nsCOMPtrnodeAsChar; PRUint32 count; nsCOMPtrparent; result = aStartNode->GetParentNode(getter_AddRefs(parent)); if (NS_FAILED(result)) { return result; } nodeAsChar = do_QueryInterface(aStartNode); if (!nodeAsChar) { return NS_ERROR_FAILURE; } nodeAsChar->GetLength(&count); if (aStartOffset!=count) { // only do this if at least one child is selected result = RemoveTextPropertiesForNode(aStartNode, parent, aStartOffset, count, aPropName); if (0!=aStartOffset) { rangeStartOffset = 0; // we split aStartNode at aStartOffset and it is the right node now } } else { skippedStartNode = PR_TRUE; if (gNoisy) { printf("skipping start node because aStartOffset==count\n"); } } // delete the style node for the text in the end parent if (NS_SUCCEEDED(result)) { result = aEndNode->GetParentNode(getter_AddRefs(parent)); if (NS_SUCCEEDED(result)) { nodeAsChar = do_QueryInterface(aEndNode); if (!nodeAsChar) { return NS_ERROR_FAILURE; } nodeAsChar->GetLength(&count); if (aEndOffset!=0) { // only do this if at least one child is selected result = RemoveTextPropertiesForNode(aEndNode, parent, 0, aEndOffset, aPropName); if (0!=aEndOffset) { rangeEndOffset = 0; // we split aEndNode at aEndOffset and it is the right node now } } else { if (gNoisy) { printf("skipping end node because aEndOffset==0\n"); } } } } // remove aPropName style nodes for all the content between the start and end nodes if (NS_SUCCEEDED(result)) { // build our own range now, because the endpoints may have shifted during shipping nsCOMPtr range; result = nsComponentManager::CreateInstance(kCRangeCID, nsnull, kIDOMRangeIID, getter_AddRefs(range)); if (NS_FAILED(result)) { return result; } if (!range) { return NS_ERROR_NULL_POINTER; } // compute the start node nsCOMPtrstartNode = do_QueryInterface(aStartNode); if (PR_TRUE==skippedStartNode) { nsEditor::GetNextNode(aStartNode, getter_AddRefs(startNode)); } range->SetStart(startNode, rangeStartOffset); range->SetEnd(aEndNode, rangeEndOffset); if (gNoisy) { printf("created range [(%p,%d), (%p,%d)]\n", aStartNode, rangeStartOffset, aEndNode, rangeEndOffset); } nsVoidArray nodeList; nsCOMPtriter; result = nsComponentManager::CreateInstance(kCContentIteratorCID, nsnull, kIContentIteratorIID, getter_AddRefs(iter)); if ((NS_SUCCEEDED(result)) && iter) { nsCOMPtrstartContent; startContent = do_QueryInterface(aStartNode); nsCOMPtrendContent; endContent = do_QueryInterface(aEndNode); if (startContent && endContent) { iter->Init(range); nsCOMPtr content; iter->CurrentNode(getter_AddRefs(content)); nsAutoString propName; // the property we are removing aPropName->ToString(propName); while (NS_COMFALSE == iter->IsDone()) { if ((content.get() != startContent.get()) && (content.get() != endContent.get())) { nsCOMPtrelement; element = do_QueryInterface(content); if (element) { nsString tag; element->GetTagName(tag); if (propName.Equals(tag)) { if (-1==nodeList.IndexOf(content.get())) { nodeList.AppendElement((void *)(content.get())); } } } } // note we don't check the result, we just rely on iter->IsDone iter->Next(); iter->CurrentNode(getter_AddRefs(content)); } } } // now delete all the style nodes we found if (NS_SUCCEEDED(result)) { nsIContent *contentPtr; contentPtr = (nsIContent*)(nodeList.ElementAt(0)); while (NS_SUCCEEDED(result) && contentPtr) { nsCOMPtrstyleNode; styleNode = do_QueryInterface(contentPtr); // promote the children of styleNode nsCOMPtrparentNode; result = styleNode->GetParentNode(getter_AddRefs(parentNode)); if (NS_SUCCEEDED(result) && parentNode) { PRInt32 position; result = nsIEditorSupport::GetChildOffset(styleNode, parentNode, position); if (NS_SUCCEEDED(result)) { nsCOMPtrpreviousSiblingNode; nsCOMPtrchildNode; result = styleNode->GetLastChild(getter_AddRefs(childNode)); while (NS_SUCCEEDED(result) && childNode) { childNode->GetPreviousSibling(getter_AddRefs(previousSiblingNode)); // explicitly delete of childNode from styleNode // can't just rely on DOM semantics of InsertNode doing the delete implicitly, doesn't undo! result = nsEditor::DeleteNode(childNode); if (NS_SUCCEEDED(result)) { result = nsEditor::InsertNode(childNode, parentNode, position); if (gNoisy) { printf("deleted next sibling node %p\n", childNode.get()); DebugDumpContent(); // DEBUG } } childNode = do_QueryInterface(previousSiblingNode); } // end while loop // delete styleNode result = nsEditor::DeleteNode(styleNode); if (gNoisy) { printf("deleted style node %p\n", styleNode.get()); DebugDumpContent(); // DEBUG } } } // get next content ptr nodeList.RemoveElementAt(0); contentPtr = (nsIContent*)(nodeList.ElementAt(0)); } } } return result; } NS_IMETHODIMP nsTextEditor::SetTypeInStateForProperty(TypeInState &aTypeInState, nsIAtom *aPropName) { if (!aPropName) { return NS_ERROR_NULL_POINTER; } if (nsIEditProperty::b==aPropName) { if (PR_TRUE==aTypeInState.IsSet(NS_TYPEINSTATE_BOLD)) { // toggle currently set boldness aTypeInState.UnSet(NS_TYPEINSTATE_BOLD); } else { // get the current style and set boldness to the opposite of the current state PRBool any = PR_FALSE; PRBool all = PR_FALSE; PRBool first = PR_FALSE; GetTextProperty(aPropName, first, any, all); // operates on current selection aTypeInState.SetBold(!any); } } else if (nsIEditProperty::i==aPropName) { if (PR_TRUE==aTypeInState.IsSet(NS_TYPEINSTATE_ITALIC)) { // toggle currently set italicness aTypeInState.UnSet(NS_TYPEINSTATE_ITALIC); } else { // get the current style and set boldness to the opposite of the current state PRBool any = PR_FALSE; PRBool all = PR_FALSE; PRBool first = PR_FALSE; GetTextProperty(aPropName, first, any, all); // operates on current selection aTypeInState.SetItalic(!any); } } else if (nsIEditProperty::u==aPropName) { if (PR_TRUE==aTypeInState.IsSet(NS_TYPEINSTATE_UNDERLINE)) { // toggle currently set italicness aTypeInState.UnSet(NS_TYPEINSTATE_UNDERLINE); } else { // get the current style and set boldness to the opposite of the current state PRBool any = PR_FALSE; PRBool all = PR_FALSE; PRBool first = PR_FALSE; GetTextProperty(aPropName, first, any, all); // operates on current selection aTypeInState.SetUnderline(!any); } } else { return NS_ERROR_FAILURE; } return NS_OK; }