зеркало из https://github.com/mozilla/pjs.git
3400 строки
106 KiB
C++
3400 строки
106 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 "nsHTMLEditRules.h"
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#include "nsEditor.h"
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#include "nsHTMLEditor.h"
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#include "nsIContent.h"
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#include "nsIContentIterator.h"
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#include "nsIDOMNode.h"
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#include "nsIDOMText.h"
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#include "nsIDOMElement.h"
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#include "nsIDOMNodeList.h"
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#include "nsIDOMSelection.h"
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#include "nsIDOMRange.h"
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#include "nsIDOMCharacterData.h"
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#include "nsIEnumerator.h"
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#include "nsIStyleContext.h"
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#include "nsIPresShell.h"
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#include "nsLayoutCID.h"
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#include "nsEditorUtils.h"
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//const static char* kMOZEditorBogusNodeAttr="MOZ_EDITOR_BOGUS_NODE";
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//const static char* kMOZEditorBogusNodeValue="TRUE";
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const unsigned char nbsp = 160;
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static NS_DEFINE_IID(kSubtreeIteratorCID, NS_SUBTREEITERATOR_CID);
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static NS_DEFINE_IID(kContentIteratorCID, NS_CONTENTITERATOR_CID);
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enum
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{
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kLonely = 0,
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kPrevSib = 1,
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kNextSib = 2,
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kBothSibs = 3
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};
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/********************************************************
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* Constructor/Destructor
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********************************************************/
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nsHTMLEditRules::nsHTMLEditRules()
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: nsTextEditRules()
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{
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}
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nsHTMLEditRules::~nsHTMLEditRules()
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{
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}
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/********************************************************
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* Public methods
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********************************************************/
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NS_IMETHODIMP
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nsHTMLEditRules::WillDoAction(nsIDOMSelection *aSelection,
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nsRulesInfo *aInfo, PRBool *aCancel)
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{
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if (!aInfo || !aCancel)
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return NS_ERROR_NULL_POINTER;
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*aCancel = PR_FALSE;
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// my kingdom for dynamic cast
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nsTextRulesInfo *info = NS_STATIC_CAST(nsTextRulesInfo*, aInfo);
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switch (info->action)
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{
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case kInsertText:
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return WillInsertText(aSelection,
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aCancel,
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info->inString,
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info->outString,
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info->typeInState,
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info->maxLength);
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case kInsertBreak:
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return WillInsertBreak(aSelection, aCancel);
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case kDeleteSelection:
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return WillDeleteSelection(aSelection, info->collapsedAction, aCancel);
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case kMakeList:
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return WillMakeList(aSelection, info->bOrdered, aCancel);
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case kIndent:
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return WillIndent(aSelection, aCancel);
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case kOutdent:
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return WillOutdent(aSelection, aCancel);
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case kAlign:
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return WillAlign(aSelection, info->alignType, aCancel);
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case kMakeBasicBlock:
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return WillMakeBasicBlock(aSelection, info->blockType, aCancel);
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case kRemoveList:
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return WillRemoveList(aSelection, info->bOrdered, aCancel);
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case kInsertElement:
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return WillInsert(aSelection, aCancel);
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}
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return nsTextEditRules::WillDoAction(aSelection, aInfo, aCancel);
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}
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NS_IMETHODIMP
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nsHTMLEditRules::DidDoAction(nsIDOMSelection *aSelection,
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nsRulesInfo *aInfo, nsresult aResult)
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{
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// my kingdom for dynamic cast
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nsTextRulesInfo *info = NS_STATIC_CAST(nsTextRulesInfo*, aInfo);
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switch (info->action)
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{
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case kUndo:
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return nsTextEditRules::DidDoAction(aSelection, aInfo, aResult);
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case kRedo:
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return nsTextEditRules::DidDoAction(aSelection, aInfo, aResult);
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}
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// other than undo and redo, clean up any empty nodes in the selection
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CleanUpSelection(aSelection);
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return nsTextEditRules::DidDoAction(aSelection, aInfo, aResult);
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}
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/********************************************************
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* Protected rules methods
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********************************************************/
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nsresult
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nsHTMLEditRules::WillInsertText(nsIDOMSelection *aSelection,
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PRBool *aCancel,
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const nsString *inString,
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nsString *outString,
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TypeInState typeInState,
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PRInt32 aMaxLength)
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{ if (!aSelection || !aCancel) { return NS_ERROR_NULL_POINTER; }
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// initialize out param
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*aCancel = PR_TRUE;
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nsresult res;
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nsCOMPtr<nsIDOMNode> selNode;
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PRInt32 selOffset;
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char specialChars[] = {'\t',' ',nbsp,'\n',0};
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// if the selection isn't collapsed, delete it.
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PRBool bCollapsed;
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res = aSelection->GetIsCollapsed(&bCollapsed);
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if (NS_FAILED(res)) return res;
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if (!bCollapsed)
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{
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res = mEditor->DeleteSelection(nsIEditor::eDoNothing);
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if (NS_FAILED(res)) return res;
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}
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// get the (collapsed) selection location
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res = mEditor->GetStartNodeAndOffset(aSelection, &selNode, &selOffset);
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if (NS_FAILED(res)) return res;
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res = WillInsert(aSelection, aCancel);
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if (NS_FAILED(res)) return res;
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// initialize out param
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// we want to ignore result of WillInsert()
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*aCancel = PR_TRUE;
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// split any mailcites in the way
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if (mFlags & nsIHTMLEditor::eEditorMailMask)
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{
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nsCOMPtr<nsIDOMNode> citeNode;
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PRInt32 newOffset;
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res = GetTopEnclosingMailCite(selNode, &citeNode);
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if (NS_FAILED(res)) return res;
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if (citeNode)
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{
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res = mEditor->SplitNodeDeep(citeNode, selNode, selOffset, &newOffset);
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if (NS_FAILED(res)) return res;
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res = citeNode->GetParentNode(getter_AddRefs(selNode));
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if (NS_FAILED(res)) return res;
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res = aSelection->Collapse(selNode, newOffset);
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if (NS_FAILED(res)) return res;
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}
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}
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// identify the block
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nsCOMPtr<nsIDOMNode> blockParent;
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if (nsEditor::IsBlockNode(selNode))
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blockParent = selNode;
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else
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blockParent = mEditor->GetBlockNodeParent(selNode);
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if (!blockParent) return NS_ERROR_FAILURE;
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// are we not in a textnode?
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if (!mEditor->IsTextNode(selNode))
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{
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// find a nearby text node if possible
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nsCOMPtr<nsIDOMNode> priorNode, nextNode;
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res = GetPriorHTMLNode(selNode, selOffset, &priorNode);
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if (NS_SUCCEEDED(res) && priorNode && mEditor->IsTextNode(priorNode)
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&& (blockParent == mEditor->GetBlockNodeParent(priorNode)))
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{
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// put selection at end of prior node
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PRUint32 strLength;
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nsCOMPtr<nsIDOMCharacterData> textNode = do_QueryInterface(priorNode);
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res = textNode->GetLength(&strLength);
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if (NS_FAILED(res)) return res;
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res = aSelection->Collapse(priorNode, strLength);
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if (NS_FAILED(res)) return res;
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}
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else
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{
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res = GetNextHTMLNode(selNode, selOffset, &nextNode);
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if (NS_SUCCEEDED(res) && nextNode && mEditor->IsTextNode(nextNode)
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&& (blockParent == mEditor->GetBlockNodeParent(nextNode)))
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{
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// put selection at begining of next node
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res = aSelection->Collapse(nextNode, 0);
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if (NS_FAILED(res)) return res;
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}
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}
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// if we are right after a moz br, delete it and make a new moz div
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PRBool needMozDiv = PR_FALSE;
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if (priorNode && IsBreak(priorNode) && HasMozAttr(priorNode)
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&& (blockParent == mEditor->GetBlockNodeParent(priorNode)))
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{
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needMozDiv = PR_TRUE;
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res = mEditor->DeleteNode(priorNode);
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if (NS_FAILED(res)) return res;
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}
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// if we are directly in a body or (non-moz) div, create a moz-div.
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// Also creat one if we detected a prior moz br (see above).
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res = mEditor->GetStartNodeAndOffset(aSelection, &selNode, &selOffset);
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if (NS_FAILED(res)) return res;
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if (needMozDiv || IsBody(selNode) || IsNormalDiv(selNode))
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{
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// wrap things up in a moz-div
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nsCOMPtr<nsIDOMNode> mozDiv;
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res = CreateMozDiv(selNode, selOffset, &mozDiv);
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if (NS_FAILED(res)) return res;
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// put selection in it
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res = aSelection->Collapse(mozDiv, 0);
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if (NS_FAILED(res)) return res;
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}
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}
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char nbspStr[2] = {nbsp, 0};
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nsString theString(*inString); // copy instring for now
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PRInt32 pos = theString.FindCharInSet(specialChars);
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while (theString.Length())
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{
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PRBool bCancel;
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nsString partialString;
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// if first char is special, then use just it
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if (pos == 0) pos = 1;
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if (pos == -1) pos = theString.Length();
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theString.Left(partialString, pos);
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theString.Cut(0, pos);
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// is it a solo tab?
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if (partialString == "\t" )
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{
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res = InsertTab(aSelection,&bCancel,outString);
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if (NS_FAILED(res)) return res;
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res = DoTextInsertion(aSelection, aCancel, outString, typeInState);
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}
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// is it a solo space?
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else if (partialString == " ")
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{
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res = InsertSpace(aSelection,&bCancel,outString);
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if (NS_FAILED(res)) return res;
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res = DoTextInsertion(aSelection, aCancel, outString, typeInState);
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}
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// is it a solo nbsp?
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else if (partialString == nbspStr)
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{
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res = InsertSpace(aSelection,&bCancel,outString);
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if (NS_FAILED(res)) return res;
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res = DoTextInsertion(aSelection, aCancel, outString, typeInState);
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}
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// is it a solo return?
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else if (partialString == "\n")
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{
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res = mEditor->InsertBreak();
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}
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else
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{
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res = DoTextInsertion(aSelection, aCancel, &partialString, typeInState);
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}
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if (NS_FAILED(res)) return res;
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pos = theString.FindCharInSet(specialChars);
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}
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return res;
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}
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nsresult
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nsHTMLEditRules::WillInsertBreak(nsIDOMSelection *aSelection, PRBool *aCancel)
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{
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if (!aSelection || !aCancel) { return NS_ERROR_NULL_POINTER; }
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// initialize out param
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*aCancel = PR_FALSE;
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nsresult res;
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res = WillInsert(aSelection, aCancel);
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if (NS_FAILED(res)) return res;
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// initialize out param
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// we want to ignore result of WillInsert()
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*aCancel = PR_FALSE;
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// if the selection isn't collapsed, delete it.
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PRBool bCollapsed;
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res = aSelection->GetIsCollapsed(&bCollapsed);
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if (NS_FAILED(res)) return res;
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if (!bCollapsed)
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{
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res = mEditor->DeleteSelection(nsIEditor::eDoNothing);
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if (NS_FAILED(res)) return res;
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}
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// split any mailcites in the way
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if (mFlags & nsIHTMLEditor::eEditorMailMask)
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{
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nsCOMPtr<nsIDOMNode> citeNode, selNode;
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PRInt32 selOffset, newOffset;
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res = mEditor->GetStartNodeAndOffset(aSelection, &selNode, &selOffset);
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if (NS_FAILED(res)) return res;
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res = GetTopEnclosingMailCite(selNode, &citeNode);
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if (NS_FAILED(res)) return res;
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if (citeNode)
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{
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res = mEditor->SplitNodeDeep(citeNode, selNode, selOffset, &newOffset);
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if (NS_FAILED(res)) return res;
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res = citeNode->GetParentNode(getter_AddRefs(selNode));
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if (NS_FAILED(res)) return res;
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res = aSelection->Collapse(selNode, newOffset);
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if (NS_FAILED(res)) return res;
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}
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}
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// smart splitting rules
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nsCOMPtr<nsIDOMNode> node;
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PRInt32 offset;
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PRBool isPRE;
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res = mEditor->GetStartNodeAndOffset(aSelection, &node, &offset);
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if (NS_FAILED(res)) return res;
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if (!node) return NS_ERROR_FAILURE;
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res = mEditor->IsPreformatted(node,&isPRE);
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if (NS_FAILED(res)) return res;
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if (isPRE)
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{
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nsString theString = "\n";
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*aCancel = PR_TRUE;
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return mEditor->InsertTextImpl(theString);
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}
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// identify the block
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nsCOMPtr<nsIDOMNode> blockParent;
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if (nsEditor::IsBlockNode(node))
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blockParent = node;
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else
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blockParent = mEditor->GetBlockNodeParent(node);
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if (!blockParent) return NS_ERROR_FAILURE;
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// break action depends on type of block
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PRBool bIsMozDiv = IsMozDiv(blockParent);
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PRBool bIsNormalDiv = IsNormalDiv(blockParent);
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// body, div, or mozdiv: insert a moz br
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if (IsBody(blockParent) || bIsNormalDiv ||
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(bIsMozDiv && AtEndOfBlock(node, offset, blockParent)))
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{
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if (bIsMozDiv)
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{
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// put selection beyond the mozdiv first
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nsCOMPtr<nsIDOMNode> parent;
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PRInt32 pOffset;
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res = nsEditor::GetNodeLocation(blockParent, &parent, &pOffset);
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if (NS_FAILED(res)) return res;
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if (!parent) return NS_ERROR_FAILURE;
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res = aSelection->Collapse(parent, pOffset+1);
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if (NS_FAILED(res)) return res;
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}
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nsCOMPtr<nsIDOMNode> brNode;
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res = mEditor->InsertBR(&brNode); // only inserts a br node
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if (NS_FAILED(res)) return res;
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// give it special moz attr
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nsCOMPtr<nsIDOMElement> brElem = do_QueryInterface(brNode);
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if (brElem)
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{
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res = mEditor->SetAttribute(brElem, "type", "_moz");
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if (NS_FAILED(res)) return res;
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}
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*aCancel = PR_TRUE;
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}
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else if (bIsMozDiv && AtStartOfBlock(node, offset, blockParent))
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{
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// position selection in front of mozdiv, and let default code
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// make a normal br
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nsCOMPtr<nsIDOMNode> parent;
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PRInt32 pOffset;
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res = nsEditor::GetNodeLocation(blockParent, &parent, &pOffset);
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if (NS_FAILED(res)) return res;
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if (!parent) return NS_ERROR_FAILURE;
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res = aSelection->Collapse(parent, pOffset);
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if (NS_FAILED(res)) return res;
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}
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else if (bIsMozDiv)
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{
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// we are in the middle of the mozdiv: split it
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PRInt32 newOffset;
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res = mEditor->SplitNodeDeep( blockParent, node, offset, &newOffset);
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if (NS_FAILED(res)) return res;
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// put selection at beginning of new mozdiv
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nsCOMPtr<nsIDOMNode> parent;
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blockParent->GetParentNode(getter_AddRefs(parent));
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nsCOMPtr <nsIDOMNode> newDiv = nsEditor::GetChildAt(parent, newOffset);
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if (!newDiv || !IsMozDiv(newDiv)) return NS_ERROR_FAILURE;
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res = aSelection->Collapse(newDiv, 0);
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if (NS_FAILED(res)) return res;
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*aCancel = PR_TRUE;
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}
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// headers: close (or split) header
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else if (IsHeader(blockParent))
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{
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res = ReturnInHeader(aSelection, blockParent, node, offset);
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*aCancel = PR_TRUE;
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return NS_OK;
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}
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// paragraphs: special rules to look for <br>s
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else if (IsParagraph(blockParent))
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{
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res = ReturnInParagraph(aSelection, blockParent, node, offset, aCancel);
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return NS_OK;
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}
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// list items: special rules to make new list items
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else if (IsListItem(blockParent))
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{
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res = ReturnInListItem(aSelection, blockParent, node, offset);
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*aCancel = PR_TRUE;
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return NS_OK;
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}
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return res;
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}
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nsresult
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nsHTMLEditRules::WillDeleteSelection(nsIDOMSelection *aSelection, nsIEditor::ESelectionCollapseDirection aAction, PRBool *aCancel)
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{
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if (!aSelection || !aCancel) { return NS_ERROR_NULL_POINTER; }
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// initialize out param
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*aCancel = PR_FALSE;
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// if there is only bogus content, cancel the operation
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if (mBogusNode)
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{
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*aCancel = PR_TRUE;
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return NS_OK;
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}
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nsresult res = NS_OK;
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PRBool bCollapsed;
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res = aSelection->GetIsCollapsed(&bCollapsed);
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if (NS_FAILED(res)) return res;
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nsCOMPtr<nsIDOMNode> node, selNode;
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PRInt32 offset, selOffset;
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res = mEditor->GetStartNodeAndOffset(aSelection, &node, &offset);
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if (NS_FAILED(res)) return res;
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if (!node) return NS_ERROR_FAILURE;
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if (bCollapsed)
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{
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// easy case, in a text node:
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if (mEditor->IsTextNode(node))
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{
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nsCOMPtr<nsIDOMText> textNode = do_QueryInterface(node);
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PRUint32 strLength;
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res = textNode->GetLength(&strLength);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
// at beginning of text node and backspaced?
|
|
if (!offset && (aAction == nsIEditor::eDeletePrevious))
|
|
{
|
|
nsCOMPtr<nsIDOMNode> priorNode;
|
|
res = GetPriorHTMLNode(node, &priorNode);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
// if there is no prior node then cancel the deletion
|
|
if (!priorNode)
|
|
{
|
|
*aCancel = PR_TRUE;
|
|
return res;
|
|
}
|
|
|
|
// block parents the same? use default deletion
|
|
if (mEditor->HasSameBlockNodeParent(node, priorNode)) return NS_OK;
|
|
|
|
// deleting across blocks
|
|
// are the blocks of same type?
|
|
nsCOMPtr<nsIDOMNode> leftParent = mEditor->GetBlockNodeParent(priorNode);
|
|
nsCOMPtr<nsIDOMNode> rightParent = mEditor->GetBlockNodeParent(node);
|
|
|
|
// if leftParent or rightParent is null, it's because the
|
|
// corresponding selection endpoint is in the body node.
|
|
if (!leftParent || !rightParent)
|
|
return NS_OK; // bail to default
|
|
|
|
if (mEditor->NodesSameType(leftParent, rightParent))
|
|
{
|
|
nsCOMPtr<nsIDOMNode> topParent;
|
|
leftParent->GetParentNode(getter_AddRefs(topParent));
|
|
|
|
*aCancel = PR_TRUE;
|
|
res = JoinNodesSmart(leftParent,rightParent,&selNode,&selOffset);
|
|
if (NS_FAILED(res)) return res;
|
|
// fix up selection
|
|
res = aSelection->Collapse(selNode,selOffset);
|
|
return res;
|
|
}
|
|
|
|
// else blocks not same type, bail to default
|
|
return NS_OK;
|
|
|
|
}
|
|
|
|
// at end of text node and deleted?
|
|
if ((offset == (PRInt32)strLength)
|
|
&& (aAction == nsIEditor::eDeleteNext))
|
|
{
|
|
nsCOMPtr<nsIDOMNode> nextNode;
|
|
res = GetNextHTMLNode(node, &nextNode);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
// if there is no next node, or it's not in the body, then cancel the deletion
|
|
if (!nextNode || !InBody(nextNode))
|
|
{
|
|
*aCancel = PR_TRUE;
|
|
return res;
|
|
}
|
|
|
|
// block parents the same? use default deletion
|
|
if (mEditor->HasSameBlockNodeParent(node, nextNode)) return NS_OK;
|
|
|
|
// deleting across blocks
|
|
// are the blocks of same type?
|
|
nsCOMPtr<nsIDOMNode> leftParent = mEditor->GetBlockNodeParent(node);
|
|
nsCOMPtr<nsIDOMNode> rightParent = mEditor->GetBlockNodeParent(nextNode);
|
|
if (mEditor->NodesSameType(leftParent, rightParent))
|
|
{
|
|
nsCOMPtr<nsIDOMNode> topParent;
|
|
leftParent->GetParentNode(getter_AddRefs(topParent));
|
|
|
|
*aCancel = PR_TRUE;
|
|
res = JoinNodesSmart(leftParent,rightParent,&selNode,&selOffset);
|
|
if (NS_FAILED(res)) return res;
|
|
// fix up selection
|
|
res = aSelection->Collapse(selNode,selOffset);
|
|
return res;
|
|
}
|
|
|
|
// else blocks not same type, bail to default
|
|
return NS_OK;
|
|
|
|
}
|
|
}
|
|
// else not in text node; we need to find right place to act on
|
|
else
|
|
{
|
|
nsCOMPtr<nsIDOMNode> nodeToDelete;
|
|
|
|
if (aAction == nsIEditor::eDeletePrevious)
|
|
res = GetPriorHTMLNode(node, offset, &nodeToDelete);
|
|
else if (aAction == nsIEditor::eDeleteNext)
|
|
res = GetNextHTMLNode(node, offset, &nodeToDelete);
|
|
else
|
|
return NS_OK;
|
|
|
|
if (NS_FAILED(res)) return res;
|
|
if (!nodeToDelete) return NS_ERROR_NULL_POINTER;
|
|
|
|
// if this node is text node, adjust selection
|
|
if (nsEditor::IsTextNode(nodeToDelete))
|
|
{
|
|
PRUint32 selPoint = 0;
|
|
nsCOMPtr<nsIDOMCharacterData>nodeAsText;
|
|
nodeAsText = do_QueryInterface(nodeToDelete);
|
|
if (aAction == nsIEditor::eDeletePrevious)
|
|
nodeAsText->GetLength(&selPoint);
|
|
res = aSelection->Collapse(nodeToDelete,selPoint);
|
|
return res;
|
|
}
|
|
else
|
|
{
|
|
// editable leaf node is not text; delete it.
|
|
// that's the default behavior
|
|
res = nsEditor::GetNodeLocation(nodeToDelete, &node, &offset);
|
|
if (NS_FAILED(res)) return res;
|
|
// adjust selection to be right after it, for benefit of
|
|
// deletion code
|
|
res = aSelection->Collapse(node, offset+1);
|
|
return res;
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
// else we have a non collapsed selection
|
|
// figure out if the enpoints are in nodes that can be merged
|
|
nsCOMPtr<nsIDOMNode> endNode;
|
|
PRInt32 endOffset;
|
|
res = mEditor->GetEndNodeAndOffset(aSelection, &endNode, &endOffset);
|
|
if (NS_FAILED(res))
|
|
{
|
|
return res;
|
|
}
|
|
if (endNode.get() != node.get())
|
|
{
|
|
// block parents the same? use default deletion
|
|
if (mEditor->HasSameBlockNodeParent(node, endNode)) return NS_OK;
|
|
|
|
// deleting across blocks
|
|
// are the blocks of same type?
|
|
nsCOMPtr<nsIDOMNode> leftParent;
|
|
nsCOMPtr<nsIDOMNode> rightParent;
|
|
|
|
// XXX: Fix for bug #10815: Crash deleting selected text and table.
|
|
// Make sure leftParent and rightParent are never NULL. This
|
|
// can happen if we call GetBlockNodeParent() and the node we
|
|
// pass in is a body node.
|
|
//
|
|
// Should we be calling IsBlockNode() instead of IsBody() here?
|
|
|
|
if (IsBody(node))
|
|
leftParent = node;
|
|
else
|
|
leftParent = mEditor->GetBlockNodeParent(node);
|
|
|
|
if (IsBody(endNode))
|
|
rightParent = endNode;
|
|
else
|
|
rightParent = mEditor->GetBlockNodeParent(endNode);
|
|
|
|
// are the blocks siblings?
|
|
nsCOMPtr<nsIDOMNode> leftBlockParent;
|
|
nsCOMPtr<nsIDOMNode> rightBlockParent;
|
|
leftParent->GetParentNode(getter_AddRefs(leftBlockParent));
|
|
rightParent->GetParentNode(getter_AddRefs(rightBlockParent));
|
|
// bail to default if blocks aren't siblings
|
|
if (leftBlockParent.get() != rightBlockParent.get()) return NS_OK;
|
|
|
|
if (mEditor->NodesSameType(leftParent, rightParent))
|
|
{
|
|
nsCOMPtr<nsIDOMNode> topParent;
|
|
leftParent->GetParentNode(getter_AddRefs(topParent));
|
|
|
|
if (IsParagraph(leftParent))
|
|
{
|
|
// first delete the selection
|
|
*aCancel = PR_TRUE;
|
|
res = mEditor->DeleteSelectionImpl(aAction);
|
|
if (NS_FAILED(res)) return res;
|
|
// then join para's, insert break
|
|
res = mEditor->JoinNodeDeep(leftParent,rightParent,&selNode,&selOffset);
|
|
if (NS_FAILED(res)) return res;
|
|
// fix up selection
|
|
res = aSelection->Collapse(selNode,selOffset);
|
|
return res;
|
|
}
|
|
if (IsListItem(leftParent) || IsHeader(leftParent))
|
|
{
|
|
// first delete the selection
|
|
*aCancel = PR_TRUE;
|
|
res = mEditor->DeleteSelectionImpl(aAction);
|
|
if (NS_FAILED(res)) return res;
|
|
// join blocks
|
|
res = mEditor->JoinNodeDeep(leftParent,rightParent,&selNode,&selOffset);
|
|
if (NS_FAILED(res)) return res;
|
|
// fix up selection
|
|
res = aSelection->Collapse(selNode,selOffset);
|
|
return res;
|
|
}
|
|
}
|
|
|
|
// else blocks not same type, bail to default
|
|
return NS_OK;
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
|
|
nsresult
|
|
nsHTMLEditRules::WillMakeList(nsIDOMSelection *aSelection, PRBool aOrdered, PRBool *aCancel)
|
|
{
|
|
if (!aSelection || !aCancel) { return NS_ERROR_NULL_POINTER; }
|
|
|
|
nsresult res = WillInsert(aSelection, aCancel);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
// initialize out param
|
|
// we want to ignore result of WillInsert()
|
|
*aCancel = PR_FALSE;
|
|
|
|
nsAutoString blockType("ul");
|
|
if (aOrdered) blockType = "ol";
|
|
|
|
nsAutoSelectionReset selectionResetter(aSelection);
|
|
|
|
PRBool outMakeEmpty;
|
|
res = ShouldMakeEmptyBlock(aSelection, &blockType, &outMakeEmpty);
|
|
if (NS_FAILED(res)) return res;
|
|
if (outMakeEmpty) return NS_OK;
|
|
|
|
// ok, we aren't creating a new empty list. Instead we are converting
|
|
// the set of blocks implied by the selection into a list.
|
|
|
|
// convert the selection ranges into "promoted" selection ranges:
|
|
// this basically just expands the range to include the immediate
|
|
// block parent, and then further expands to include any ancestors
|
|
// whose children are all in the range
|
|
|
|
*aCancel = PR_TRUE;
|
|
|
|
nsCOMPtr<nsISupportsArray> arrayOfRanges;
|
|
res = GetPromotedRanges(aSelection, &arrayOfRanges, kMakeList);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
// use these ranges to contruct a list of nodes to act on.
|
|
nsCOMPtr<nsISupportsArray> arrayOfNodes;
|
|
res = GetNodesForOperation(arrayOfRanges, &arrayOfNodes, kMakeList);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
// Remove all non-editable nodes. Leave them be.
|
|
|
|
PRUint32 listCount;
|
|
PRInt32 i;
|
|
arrayOfNodes->Count(&listCount);
|
|
for (i=(PRInt32)listCount-1; i>=0; i--)
|
|
{
|
|
nsCOMPtr<nsISupports> isupports = (dont_AddRef)(arrayOfNodes->ElementAt(i));
|
|
nsCOMPtr<nsIDOMNode> testNode( do_QueryInterface(isupports ) );
|
|
if (!mEditor->IsEditable(testNode))
|
|
{
|
|
arrayOfNodes->RemoveElementAt(i);
|
|
}
|
|
}
|
|
|
|
// if there is only one node in the array, and it is a list, div, or blockquote,
|
|
// then look inside of it until we find what we want to make a list out of.
|
|
arrayOfNodes->Count(&listCount);
|
|
if (listCount == 1)
|
|
{
|
|
nsCOMPtr<nsISupports> isupports = (dont_AddRef)(arrayOfNodes->ElementAt(0));
|
|
nsCOMPtr<nsIDOMNode> curNode( do_QueryInterface(isupports) );
|
|
|
|
while (IsDiv(curNode) || IsOrderedList(curNode) || IsUnorderedList(curNode) || IsBlockquote(curNode))
|
|
{
|
|
// dive as long as there is only one child, and it is a list, div, or blockquote
|
|
PRUint32 numChildren;
|
|
res = mEditor->CountEditableChildren(curNode, numChildren);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
if (numChildren == 1)
|
|
{
|
|
// keep diving
|
|
nsCOMPtr <nsIDOMNode> tmpNode = nsEditor::GetChildAt(curNode, 0);
|
|
if (IsDiv(tmpNode) || IsOrderedList(tmpNode) || IsUnorderedList(tmpNode) || IsBlockquote(tmpNode))
|
|
{
|
|
// check editablility XXX floppy moose
|
|
curNode = tmpNode;
|
|
}
|
|
else break;
|
|
}
|
|
else break;
|
|
}
|
|
// we've found innermost list/blockquote/div:
|
|
// replace the one node in the array with this node
|
|
isupports = do_QueryInterface(curNode);
|
|
arrayOfNodes->ReplaceElementAt(isupports, 0);
|
|
}
|
|
|
|
// Next we detect all the transitions in the array, where a transition
|
|
// means that adjacent nodes in the array don't have the same parent.
|
|
|
|
nsVoidArray transitionList;
|
|
res = MakeTransitionList(arrayOfNodes, &transitionList);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
// Ok, now go through all the nodes and put then in the list,
|
|
// or whatever is approriate. Wohoo!
|
|
|
|
arrayOfNodes->Count(&listCount);
|
|
nsCOMPtr<nsIDOMNode> curParent;
|
|
nsCOMPtr<nsIDOMNode> curList;
|
|
nsCOMPtr<nsIDOMNode> prevListItem;
|
|
|
|
for (i=0; i<(PRInt32)listCount; i++)
|
|
{
|
|
// here's where we actually figure out what to do
|
|
nsCOMPtr<nsISupports> isupports = (dont_AddRef)(arrayOfNodes->ElementAt(i));
|
|
nsCOMPtr<nsIDOMNode> curNode( do_QueryInterface(isupports ) );
|
|
PRInt32 offset;
|
|
res = nsEditor::GetNodeLocation(curNode, &curParent, &offset);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
if (transitionList[i] && // transition node
|
|
((((i+1)<(PRInt32)listCount) && transitionList[i+1]) || // and next node is transistion node
|
|
( i+1 >= (PRInt32)listCount))) // or there is no next node
|
|
{
|
|
// the parent of this node has no other children on the
|
|
// list of nodes to make a list out of. So if this node
|
|
// is a list, change it's list type if needed instead of
|
|
// reparenting it
|
|
nsCOMPtr<nsIDOMNode> newBlock;
|
|
if (IsUnorderedList(curNode))
|
|
{
|
|
if (aOrdered)
|
|
{
|
|
// make a new ordered list, insert it where the current unordered list is,
|
|
// and move all the children to the new list, and remove the old list
|
|
res = ReplaceContainer(curNode,&newBlock,blockType);
|
|
if (NS_FAILED(res)) return res;
|
|
curList = newBlock;
|
|
continue;
|
|
}
|
|
else
|
|
{
|
|
// do nothing, we are already the right kind of list
|
|
curList = newBlock;
|
|
continue;
|
|
}
|
|
}
|
|
else if (IsOrderedList(curNode))
|
|
{
|
|
if (!aOrdered)
|
|
{
|
|
// make a new unordered list, insert it where the current ordered list is,
|
|
// and move all the children to the new list, and remove the old list
|
|
ReplaceContainer(curNode,&newBlock,blockType);
|
|
if (NS_FAILED(res)) return res;
|
|
curList = newBlock;
|
|
continue;
|
|
}
|
|
else
|
|
{
|
|
// do nothing, we are already the right kind of list
|
|
curList = newBlock;
|
|
continue;
|
|
}
|
|
}
|
|
else if (IsDiv(curNode) || IsBlockquote(curNode))
|
|
{
|
|
// XXX floppy moose
|
|
}
|
|
} // lonely node
|
|
|
|
// need to make a list to put things in if we haven't already,
|
|
// or if this node doesn't go in list we used earlier.
|
|
if (!curList || transitionList[i])
|
|
{
|
|
nsAutoString listType;
|
|
if (aOrdered) listType = "ol";
|
|
else listType = "ul";
|
|
res = mEditor->CreateNode(listType, curParent, offset, getter_AddRefs(curList));
|
|
if (NS_FAILED(res)) return res;
|
|
// curList is now the correct thing to put curNode in
|
|
prevListItem = 0;
|
|
}
|
|
|
|
// if curNode is a Break, delete it, and quit remembering prev list item
|
|
if (IsBreak(curNode))
|
|
{
|
|
res = mEditor->DeleteNode(curNode);
|
|
if (NS_FAILED(res)) return res;
|
|
prevListItem = 0;
|
|
continue;
|
|
}
|
|
|
|
// if curNode isn't a list item, we must wrap it in one
|
|
nsCOMPtr<nsIDOMNode> listItem;
|
|
if (!IsListItem(curNode))
|
|
{
|
|
if (nsEditor::IsInlineNode(curNode) && prevListItem)
|
|
{
|
|
// this is a continuation of some inline nodes that belong together in
|
|
// the same list item. use prevListItem
|
|
PRUint32 listItemLen;
|
|
res = mEditor->GetLengthOfDOMNode(prevListItem, listItemLen);
|
|
if (NS_FAILED(res)) return res;
|
|
res = mEditor->DeleteNode(curNode);
|
|
if (NS_FAILED(res)) return res;
|
|
res = mEditor->InsertNode(curNode, prevListItem, listItemLen);
|
|
if (NS_FAILED(res)) return res;
|
|
}
|
|
else
|
|
{
|
|
// don't wrap li around a moz-div. instead replace moz-div with li
|
|
if (IsMozDiv(curNode))
|
|
{
|
|
res = ReplaceContainer(curNode, &listItem, "li");
|
|
}
|
|
else
|
|
{
|
|
res = InsertContainerAbove(curNode, &listItem, "li");
|
|
}
|
|
if (NS_FAILED(res)) return res;
|
|
if (nsEditor::IsInlineNode(curNode))
|
|
prevListItem = listItem;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
listItem = curNode;
|
|
}
|
|
|
|
if (listItem) // if we made a new list item, deal with it
|
|
{
|
|
// tuck the listItem into the end of the active list
|
|
PRUint32 listLen;
|
|
res = mEditor->GetLengthOfDOMNode(curList, listLen);
|
|
if (NS_FAILED(res)) return res;
|
|
res = mEditor->DeleteNode(listItem);
|
|
if (NS_FAILED(res)) return res;
|
|
res = mEditor->InsertNode(listItem, curList, listLen);
|
|
if (NS_FAILED(res)) return res;
|
|
}
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
|
|
nsresult
|
|
nsHTMLEditRules::WillRemoveList(nsIDOMSelection *aSelection, PRBool aOrdered, PRBool *aCancel)
|
|
{
|
|
if (!aSelection || !aCancel) { return NS_ERROR_NULL_POINTER; }
|
|
// initialize out param
|
|
*aCancel = PR_TRUE;
|
|
|
|
nsAutoString blockType("ul");
|
|
if (aOrdered) blockType = "ol";
|
|
|
|
nsAutoSelectionReset selectionResetter(aSelection);
|
|
|
|
nsCOMPtr<nsISupportsArray> arrayOfRanges;
|
|
nsresult res = GetPromotedRanges(aSelection, &arrayOfRanges, kMakeList);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
// use these ranges to contruct a list of nodes to act on.
|
|
nsCOMPtr<nsISupportsArray> arrayOfNodes;
|
|
res = GetNodesForOperation(arrayOfRanges, &arrayOfNodes, kMakeList);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
// Remove all non-editable nodes. Leave them be.
|
|
|
|
PRUint32 listCount;
|
|
PRInt32 i;
|
|
arrayOfNodes->Count(&listCount);
|
|
for (i=listCount-1; i>=0; i--)
|
|
{
|
|
nsCOMPtr<nsISupports> isupports = (dont_AddRef)(arrayOfNodes->ElementAt(i));
|
|
nsCOMPtr<nsIDOMNode> testNode( do_QueryInterface(isupports ) );
|
|
if (!mEditor->IsEditable(testNode))
|
|
{
|
|
arrayOfNodes->RemoveElementAt(i);
|
|
}
|
|
}
|
|
|
|
// Only act on lists or list items in the array
|
|
nsCOMPtr<nsIDOMNode> curParent;
|
|
for (i=0; i<(PRInt32)listCount; i++)
|
|
{
|
|
// here's where we actually figure out what to do
|
|
nsCOMPtr<nsISupports> isupports = (dont_AddRef)(arrayOfNodes->ElementAt(i));
|
|
nsCOMPtr<nsIDOMNode> curNode( do_QueryInterface(isupports ) );
|
|
PRInt32 offset;
|
|
res = nsEditor::GetNodeLocation(curNode, &curParent, &offset);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
if (IsListItem(curNode)) // unlist this listitem
|
|
{
|
|
PRBool bOutOfList;
|
|
do
|
|
{
|
|
res = PopListItem(curNode, &bOutOfList);
|
|
if (NS_FAILED(res)) return res;
|
|
} while (!bOutOfList); // keep popping it out until it's not in a list anymore
|
|
}
|
|
else if (IsList(curNode)) // node is a list, move list items out
|
|
{
|
|
nsCOMPtr<nsIDOMNode> child;
|
|
curNode->GetLastChild(getter_AddRefs(child));
|
|
|
|
while (child)
|
|
{
|
|
if (IsListItem(child))
|
|
{
|
|
PRBool bOutOfList;
|
|
do
|
|
{
|
|
res = PopListItem(child, &bOutOfList);
|
|
if (NS_FAILED(res)) return res;
|
|
} while (!bOutOfList); // keep popping it out until it's not in a list anymore
|
|
}
|
|
else
|
|
{
|
|
// delete any non- list items for now
|
|
res = mEditor->DeleteNode(child);
|
|
if (NS_FAILED(res)) return res;
|
|
}
|
|
curNode->GetLastChild(getter_AddRefs(child));
|
|
}
|
|
// delete the now-empty list
|
|
res = mEditor->DeleteNode(curNode);
|
|
if (NS_FAILED(res)) return res;
|
|
}
|
|
}
|
|
return res;
|
|
}
|
|
|
|
|
|
nsresult
|
|
nsHTMLEditRules::WillMakeBasicBlock(nsIDOMSelection *aSelection, const nsString *aBlockType, PRBool *aCancel)
|
|
{
|
|
if (!aSelection || !aCancel) { return NS_ERROR_NULL_POINTER; }
|
|
// initialize out param
|
|
*aCancel = PR_FALSE;
|
|
|
|
PRBool makeEmpty;
|
|
nsresult res = ShouldMakeEmptyBlock(aSelection, aBlockType, &makeEmpty);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
if (makeEmpty) return res; // just insert a new empty block
|
|
|
|
// else it's not that easy...
|
|
nsAutoSelectionReset selectionResetter(aSelection);
|
|
*aCancel = PR_TRUE;
|
|
|
|
nsCOMPtr<nsISupportsArray> arrayOfRanges;
|
|
res = GetPromotedRanges(aSelection, &arrayOfRanges, kMakeBasicBlock);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
// use these ranges to contruct a list of nodes to act on.
|
|
nsCOMPtr<nsISupportsArray> arrayOfNodes;
|
|
res = GetNodesForOperation(arrayOfRanges, &arrayOfNodes, kMakeBasicBlock);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
// Ok, now go through all the nodes and make the right kind of blocks,
|
|
// or whatever is approriate. Wohoo!
|
|
res = ApplyBlockStyle(arrayOfNodes, aBlockType);
|
|
return res;
|
|
}
|
|
|
|
|
|
nsresult
|
|
nsHTMLEditRules::WillIndent(nsIDOMSelection *aSelection, PRBool *aCancel)
|
|
{
|
|
if (!aSelection || !aCancel) { return NS_ERROR_NULL_POINTER; }
|
|
|
|
nsresult res = WillInsert(aSelection, aCancel);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
// initialize out param
|
|
// we want to ignore result of WillInsert()
|
|
*aCancel = PR_TRUE;
|
|
|
|
nsAutoSelectionReset selectionResetter(aSelection);
|
|
|
|
// convert the selection ranges into "promoted" selection ranges:
|
|
// this basically just expands the range to include the immediate
|
|
// block parent, and then further expands to include any ancestors
|
|
// whose children are all in the range
|
|
|
|
nsCOMPtr<nsISupportsArray> arrayOfRanges;
|
|
res = GetPromotedRanges(aSelection, &arrayOfRanges, kIndent);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
// use these ranges to contruct a list of nodes to act on.
|
|
nsCOMPtr<nsISupportsArray> arrayOfNodes;
|
|
res = GetNodesForOperation(arrayOfRanges, &arrayOfNodes, kIndent);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
// Next we detect all the transitions in the array, where a transition
|
|
// means that adjacent nodes in the array don't have the same parent.
|
|
|
|
nsVoidArray transitionList;
|
|
res = MakeTransitionList(arrayOfNodes, &transitionList);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
// Ok, now go through all the nodes and put them in a blockquote,
|
|
// or whatever is appropriate. Wohoo!
|
|
|
|
PRUint32 listCount;
|
|
PRInt32 i;
|
|
arrayOfNodes->Count(&listCount);
|
|
nsCOMPtr<nsIDOMNode> curParent;
|
|
nsCOMPtr<nsIDOMNode> curQuote;
|
|
nsCOMPtr<nsIDOMNode> curList;
|
|
for (i=0; i<(PRInt32)listCount; i++)
|
|
{
|
|
// here's where we actually figure out what to do
|
|
nsCOMPtr<nsISupports> isupports = (dont_AddRef)(arrayOfNodes->ElementAt(i));
|
|
nsCOMPtr<nsIDOMNode> curNode( do_QueryInterface(isupports ) );
|
|
PRInt32 offset;
|
|
res = nsEditor::GetNodeLocation(curNode, &curParent, &offset);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
// some logic for putting list items into nested lists...
|
|
if (IsList(curParent))
|
|
{
|
|
if (!curList || transitionList[i])
|
|
{
|
|
nsAutoString listTag;
|
|
nsEditor::GetTagString(curParent,listTag);
|
|
// create a new nested list of correct type
|
|
res = mEditor->CreateNode(listTag, curParent, offset, getter_AddRefs(curList));
|
|
if (NS_FAILED(res)) return res;
|
|
// curList is now the correct thing to put curNode in
|
|
}
|
|
// tuck the node into the end of the active list
|
|
PRUint32 listLen;
|
|
res = mEditor->GetLengthOfDOMNode(curList, listLen);
|
|
if (NS_FAILED(res)) return res;
|
|
res = mEditor->DeleteNode(curNode);
|
|
if (NS_FAILED(res)) return res;
|
|
res = mEditor->InsertNode(curNode, curList, listLen);
|
|
if (NS_FAILED(res)) return res;
|
|
}
|
|
|
|
else // not a list item, use blockquote
|
|
{
|
|
// need to make a blockquote to put things in if we haven't already,
|
|
// or if this node doesn't go in blockquote we used earlier.
|
|
if (!curQuote || transitionList[i])
|
|
{
|
|
nsAutoString quoteType("blockquote");
|
|
if (mEditor->CanContainTag(curParent,quoteType))
|
|
{
|
|
res = mEditor->CreateNode(quoteType, curParent, offset, getter_AddRefs(curQuote));
|
|
if (NS_FAILED(res)) return res;
|
|
// curQuote is now the correct thing to put curNode in
|
|
}
|
|
else
|
|
{
|
|
printf("trying to put a blockquote in a bad place\n");
|
|
}
|
|
}
|
|
|
|
// tuck the node into the end of the active blockquote
|
|
PRUint32 quoteLen;
|
|
res = mEditor->GetLengthOfDOMNode(curQuote, quoteLen);
|
|
if (NS_FAILED(res)) return res;
|
|
res = mEditor->DeleteNode(curNode);
|
|
if (NS_FAILED(res)) return res;
|
|
res = mEditor->InsertNode(curNode, curQuote, quoteLen);
|
|
if (NS_FAILED(res)) return res;
|
|
}
|
|
}
|
|
return res;
|
|
}
|
|
|
|
|
|
nsresult
|
|
nsHTMLEditRules::WillOutdent(nsIDOMSelection *aSelection, PRBool *aCancel)
|
|
{
|
|
if (!aSelection || !aCancel) { return NS_ERROR_NULL_POINTER; }
|
|
// initialize out param
|
|
*aCancel = PR_TRUE;
|
|
|
|
nsAutoSelectionReset selectionResetter(aSelection);
|
|
nsresult res = NS_OK;
|
|
|
|
// convert the selection ranges into "promoted" selection ranges:
|
|
// this basically just expands the range to include the immediate
|
|
// block parent, and then further expands to include any ancestors
|
|
// whose children are all in the range
|
|
|
|
nsCOMPtr<nsISupportsArray> arrayOfRanges;
|
|
res = GetPromotedRanges(aSelection, &arrayOfRanges, kOutdent);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
// use these ranges to contruct a list of nodes to act on.
|
|
nsCOMPtr<nsISupportsArray> arrayOfNodes;
|
|
res = GetNodesForOperation(arrayOfRanges, &arrayOfNodes, kOutdent);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
// Next we detect all the transitions in the array, where a transition
|
|
// means that adjacent nodes in the array don't have the same parent.
|
|
|
|
nsVoidArray transitionList;
|
|
res = MakeTransitionList(arrayOfNodes, &transitionList);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
// Ok, now go through all the nodes and remove a level of blockquoting,
|
|
// or whatever is appropriate. Wohoo!
|
|
|
|
PRUint32 listCount;
|
|
PRInt32 i;
|
|
arrayOfNodes->Count(&listCount);
|
|
nsCOMPtr<nsIDOMNode> curParent;
|
|
for (i=0; i<(PRInt32)listCount; i++)
|
|
{
|
|
// here's where we actually figure out what to do
|
|
nsCOMPtr<nsISupports> isupports = (dont_AddRef)(arrayOfNodes->ElementAt(i));
|
|
nsCOMPtr<nsIDOMNode> curNode( do_QueryInterface(isupports ) );
|
|
PRInt32 offset;
|
|
res = nsEditor::GetNodeLocation(curNode, &curParent, &offset);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
if (IsList(curParent)) // move node out of list
|
|
{
|
|
if (IsList(curNode)) // just unwrap this sublist
|
|
{
|
|
res = RemoveContainer(curNode);
|
|
if (NS_FAILED(res)) return res;
|
|
}
|
|
else // we are moving a list item, but not whole list
|
|
{
|
|
PRBool bOutOfList;
|
|
res = PopListItem(curNode, &bOutOfList);
|
|
if (NS_FAILED(res)) return res;
|
|
}
|
|
}
|
|
else if (IsList(curNode)) // node is a list, but parent is non-list: move list items out
|
|
{
|
|
nsCOMPtr<nsIDOMNode> child;
|
|
curNode->GetLastChild(getter_AddRefs(child));
|
|
while (child)
|
|
{
|
|
if (IsListItem(child))
|
|
{
|
|
PRBool bOutOfList;
|
|
res = PopListItem(child, &bOutOfList);
|
|
if (NS_FAILED(res)) return res;
|
|
}
|
|
else
|
|
{
|
|
// delete any non- list items for now
|
|
res = mEditor->DeleteNode(child);
|
|
if (NS_FAILED(res)) return res;
|
|
}
|
|
curNode->GetLastChild(getter_AddRefs(child));
|
|
}
|
|
// delete the now-empty list
|
|
res = mEditor->DeleteNode(curNode);
|
|
if (NS_FAILED(res)) return res;
|
|
}
|
|
else if (transitionList[i]) // not list related - look for enclosing blockquotes and remove
|
|
{
|
|
// look for a blockquote somewhere above us and remove it.
|
|
// this is a hack until i think about outdent for real.
|
|
nsCOMPtr<nsIDOMNode> n = curNode;
|
|
nsCOMPtr<nsIDOMNode> tmp;
|
|
while (!IsBody(n))
|
|
{
|
|
if (IsBlockquote(n))
|
|
{
|
|
RemoveContainer(n);
|
|
break;
|
|
}
|
|
n->GetParentNode(getter_AddRefs(tmp));
|
|
n = tmp;
|
|
}
|
|
}
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
|
|
nsresult
|
|
nsHTMLEditRules::WillAlign(nsIDOMSelection *aSelection, const nsString *alignType, PRBool *aCancel)
|
|
{
|
|
if (!aSelection || !aCancel) { return NS_ERROR_NULL_POINTER; }
|
|
|
|
nsresult res = WillInsert(aSelection, aCancel);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
// initialize out param
|
|
// we want to ignore result of WillInsert()
|
|
*aCancel = PR_FALSE;
|
|
|
|
nsAutoSelectionReset selectionResetter(aSelection);
|
|
|
|
PRBool outMakeEmpty;
|
|
res = ShouldMakeEmptyBlock(aSelection, alignType, &outMakeEmpty);
|
|
if (NS_FAILED(res)) return res;
|
|
if (outMakeEmpty) return NS_OK;
|
|
|
|
|
|
// convert the selection ranges into "promoted" selection ranges:
|
|
// this basically just expands the range to include the immediate
|
|
// block parent, and then further expands to include any ancestors
|
|
// whose children are all in the range
|
|
*aCancel = PR_TRUE;
|
|
|
|
nsCOMPtr<nsISupportsArray> arrayOfRanges;
|
|
res = GetPromotedRanges(aSelection, &arrayOfRanges, kAlign);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
// use these ranges to contruct a list of nodes to act on.
|
|
nsCOMPtr<nsISupportsArray> arrayOfNodes;
|
|
res = GetNodesForOperation(arrayOfRanges, &arrayOfNodes, kAlign);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
// Next we detect all the transitions in the array, where a transition
|
|
// means that adjacent nodes in the array don't have the same parent.
|
|
|
|
nsVoidArray transitionList;
|
|
res = MakeTransitionList(arrayOfNodes, &transitionList);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
// Ok, now go through all the nodes and give them an align attrib or put them in a div,
|
|
// or whatever is appropriate. Wohoo!
|
|
|
|
PRUint32 listCount;
|
|
PRInt32 i;
|
|
arrayOfNodes->Count(&listCount);
|
|
nsCOMPtr<nsIDOMNode> curParent;
|
|
nsCOMPtr<nsIDOMNode> curDiv;
|
|
for (i=0; i<(PRInt32)listCount; i++)
|
|
{
|
|
// here's where we actually figure out what to do
|
|
nsCOMPtr<nsISupports> isupports = (dont_AddRef)(arrayOfNodes->ElementAt(i));
|
|
nsCOMPtr<nsIDOMNode> curNode( do_QueryInterface(isupports ) );
|
|
PRInt32 offset;
|
|
res = nsEditor::GetNodeLocation(curNode, &curParent, &offset);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
// if it's a div, don't nest it, just set the alignment
|
|
if (IsDiv(curNode))
|
|
{
|
|
nsCOMPtr<nsIDOMElement> divElem = do_QueryInterface(curNode);
|
|
nsAutoString attr("align");
|
|
res = mEditor->SetAttribute(divElem, attr, *alignType);
|
|
if (NS_FAILED(res)) return res;
|
|
// clear out curDiv so that we don't put nodes after this one into it
|
|
curDiv = 0;
|
|
continue;
|
|
}
|
|
|
|
// need to make a div to put things in if we haven't already,
|
|
// or if this node doesn't go in div we used earlier.
|
|
if (!curDiv || transitionList[i])
|
|
{
|
|
nsAutoString divType("div");
|
|
res = mEditor->CreateNode(divType, curParent, offset, getter_AddRefs(curDiv));
|
|
if (NS_FAILED(res)) return res;
|
|
// set up the alignment on the div
|
|
nsCOMPtr<nsIDOMElement> divElem = do_QueryInterface(curDiv);
|
|
nsAutoString attr("align");
|
|
res = mEditor->SetAttribute(divElem, attr, *alignType);
|
|
if (NS_FAILED(res)) return res;
|
|
// curDiv is now the correct thing to put curNode in
|
|
}
|
|
|
|
// tuck the node into the end of the active div
|
|
PRUint32 listLen;
|
|
res = mEditor->GetLengthOfDOMNode(curDiv, listLen);
|
|
if (NS_FAILED(res)) return res;
|
|
res = mEditor->DeleteNode(curNode);
|
|
if (NS_FAILED(res)) return res;
|
|
res = mEditor->InsertNode(curNode, curDiv, listLen);
|
|
if (NS_FAILED(res)) return res;
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
|
|
|
|
/********************************************************
|
|
* helper methods
|
|
********************************************************/
|
|
|
|
///////////////////////////////////////////////////////////////////////////
|
|
// IsHeader: true if node an html header
|
|
//
|
|
PRBool
|
|
nsHTMLEditRules::IsHeader(nsIDOMNode *node)
|
|
{
|
|
NS_PRECONDITION(node, "null parent passed to nsHTMLEditRules::IsHeader");
|
|
nsAutoString tag;
|
|
nsEditor::GetTagString(node,tag);
|
|
tag.ToLowerCase();
|
|
if ( (tag == "h1") ||
|
|
(tag == "h2") ||
|
|
(tag == "h3") ||
|
|
(tag == "h4") ||
|
|
(tag == "h5") ||
|
|
(tag == "h6") )
|
|
{
|
|
return PR_TRUE;
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////
|
|
// IsParagraph: true if node an html paragraph
|
|
//
|
|
PRBool
|
|
nsHTMLEditRules::IsParagraph(nsIDOMNode *node)
|
|
{
|
|
NS_PRECONDITION(node, "null parent passed to nsHTMLEditRules::IsParagraph");
|
|
nsAutoString tag;
|
|
nsEditor::GetTagString(node,tag);
|
|
tag.ToLowerCase();
|
|
if (tag == "p")
|
|
{
|
|
return PR_TRUE;
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////
|
|
// IsListItem: true if node an html list item
|
|
//
|
|
PRBool
|
|
nsHTMLEditRules::IsListItem(nsIDOMNode *node)
|
|
{
|
|
NS_PRECONDITION(node, "null parent passed to nsHTMLEditRules::IsListItem");
|
|
nsAutoString tag;
|
|
nsEditor::GetTagString(node,tag);
|
|
tag.ToLowerCase();
|
|
if (tag == "li")
|
|
{
|
|
return PR_TRUE;
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////
|
|
// IsList: true if node an html list
|
|
//
|
|
PRBool
|
|
nsHTMLEditRules::IsList(nsIDOMNode *node)
|
|
{
|
|
NS_PRECONDITION(node, "null parent passed to nsHTMLEditRules::IsList");
|
|
nsAutoString tag;
|
|
nsEditor::GetTagString(node,tag);
|
|
tag.ToLowerCase();
|
|
if ( (tag == "ol") ||
|
|
(tag == "ul") )
|
|
{
|
|
return PR_TRUE;
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////
|
|
// IsOrderedList: true if node an html orderd list
|
|
//
|
|
PRBool
|
|
nsHTMLEditRules::IsOrderedList(nsIDOMNode *node)
|
|
{
|
|
NS_PRECONDITION(node, "null parent passed to nsHTMLEditRules::IsOrderedList");
|
|
nsAutoString tag;
|
|
nsEditor::GetTagString(node,tag);
|
|
tag.ToLowerCase();
|
|
if (tag == "ol")
|
|
{
|
|
return PR_TRUE;
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////
|
|
// IsUnorderedList: true if node an html orderd list
|
|
//
|
|
PRBool
|
|
nsHTMLEditRules::IsUnorderedList(nsIDOMNode *node)
|
|
{
|
|
NS_PRECONDITION(node, "null parent passed to nsHTMLEditRules::IsUnorderedList");
|
|
nsAutoString tag;
|
|
nsEditor::GetTagString(node,tag);
|
|
tag.ToLowerCase();
|
|
if (tag == "ul")
|
|
{
|
|
return PR_TRUE;
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////
|
|
// IsBreak: true if node an html break node
|
|
//
|
|
PRBool
|
|
nsHTMLEditRules::IsBreak(nsIDOMNode *node)
|
|
{
|
|
NS_PRECONDITION(node, "null parent passed to nsHTMLEditRules::IsBreak");
|
|
nsAutoString tag;
|
|
nsEditor::GetTagString(node,tag);
|
|
tag.ToLowerCase();
|
|
if (tag == "br")
|
|
{
|
|
return PR_TRUE;
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////
|
|
// IsBody: true if node an html body node
|
|
//
|
|
PRBool
|
|
nsHTMLEditRules::IsBody(nsIDOMNode *node)
|
|
{
|
|
NS_PRECONDITION(node, "null parent passed to nsHTMLEditRules::IsBody");
|
|
nsAutoString tag;
|
|
nsEditor::GetTagString(node,tag);
|
|
tag.ToLowerCase();
|
|
if (tag == "body")
|
|
{
|
|
return PR_TRUE;
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////
|
|
// IsBlockquote: true if node an html blockquote node
|
|
//
|
|
PRBool
|
|
nsHTMLEditRules::IsBlockquote(nsIDOMNode *node)
|
|
{
|
|
NS_PRECONDITION(node, "null parent passed to nsHTMLEditRules::IsBlockquote");
|
|
nsAutoString tag;
|
|
nsEditor::GetTagString(node,tag);
|
|
tag.ToLowerCase();
|
|
if (tag == "blockquote")
|
|
{
|
|
return PR_TRUE;
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////
|
|
// IsAnchor: true if node an html anchor node
|
|
//
|
|
PRBool
|
|
nsHTMLEditRules::IsAnchor(nsIDOMNode *node)
|
|
{
|
|
NS_PRECONDITION(node, "null parent passed to nsHTMLEditRules::IsAnchor");
|
|
nsAutoString tag;
|
|
nsEditor::GetTagString(node,tag);
|
|
tag.ToLowerCase();
|
|
if (tag == "a")
|
|
{
|
|
return PR_TRUE;
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////
|
|
// IsDiv: true if node an html div node
|
|
//
|
|
PRBool
|
|
nsHTMLEditRules::IsDiv(nsIDOMNode *node)
|
|
{
|
|
NS_PRECONDITION(node, "null parent passed to nsHTMLEditRules::IsDiv");
|
|
nsAutoString tag;
|
|
nsEditor::GetTagString(node,tag);
|
|
tag.ToLowerCase();
|
|
if (tag == "div")
|
|
{
|
|
return PR_TRUE;
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////
|
|
// IsNormalDiv: true if node an html div node, without type = _moz
|
|
//
|
|
PRBool
|
|
nsHTMLEditRules::IsNormalDiv(nsIDOMNode *node)
|
|
{
|
|
if (IsDiv(node) && !HasMozAttr(node)) return PR_TRUE;
|
|
return PR_FALSE;
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////
|
|
// IsMozDiv: true if node an html div node with type = _moz
|
|
//
|
|
PRBool
|
|
nsHTMLEditRules::IsMozDiv(nsIDOMNode *node)
|
|
{
|
|
if (IsDiv(node) && HasMozAttr(node)) return PR_TRUE;
|
|
return PR_FALSE;
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////
|
|
// HasMozAttr: true if node has type attribute = _moz
|
|
// (used to indicate the div's and br's we use in
|
|
// mail compose rules)
|
|
//
|
|
PRBool
|
|
nsHTMLEditRules::HasMozAttr(nsIDOMNode *node)
|
|
{
|
|
NS_PRECONDITION(node, "null parent passed to nsHTMLEditRules::HasMozAttr");
|
|
nsCOMPtr<nsIDOMElement> elem = do_QueryInterface(node);
|
|
if (elem)
|
|
{
|
|
nsAutoString typeAttrName("type");
|
|
nsAutoString typeAttrVal;
|
|
nsresult res = elem->GetAttribute(typeAttrName, typeAttrVal);
|
|
typeAttrVal.ToLowerCase();
|
|
if (NS_SUCCEEDED(res) && (typeAttrVal == "_moz"))
|
|
return PR_TRUE;
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////
|
|
// IsMailCite: true if node an html blockquote with type=cite
|
|
//
|
|
PRBool
|
|
nsHTMLEditRules::IsMailCite(nsIDOMNode *node)
|
|
{
|
|
NS_PRECONDITION(node, "null parent passed to nsHTMLEditRules::IsMailCite");
|
|
if (IsBlockquote(node))
|
|
{
|
|
nsCOMPtr<nsIDOMElement> bqElem = do_QueryInterface(node);
|
|
nsAutoString typeAttrName("type");
|
|
nsAutoString typeAttrVal;
|
|
nsresult res = bqElem->GetAttribute(typeAttrName, typeAttrVal);
|
|
typeAttrVal.ToLowerCase();
|
|
if (NS_SUCCEEDED(res))
|
|
{
|
|
if (typeAttrVal.Equals("cite", PR_TRUE, 4))
|
|
return PR_TRUE;
|
|
}
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////
|
|
// InBody: true if node is a descendant of the body
|
|
//
|
|
PRBool
|
|
nsHTMLEditRules::InBody(nsIDOMNode *node)
|
|
{
|
|
NS_PRECONDITION(node, "null parent passed to nsHTMLEditRules::InBody");
|
|
nsCOMPtr<nsIDOMNode> tmp;
|
|
nsCOMPtr<nsIDOMNode> p = do_QueryInterface(node);
|
|
|
|
while (p && !IsBody(p))
|
|
{
|
|
if ( NS_FAILED(p->GetParentNode(getter_AddRefs(tmp))) || !tmp) // no parent, ran off top of tree
|
|
return PR_FALSE;
|
|
p = tmp;
|
|
}
|
|
if (p) return PR_TRUE;
|
|
return PR_FALSE;
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////////////////////
|
|
// IsEmptyBlock: figure out if aNode is (or is inside) an empty block.
|
|
// A block can have children and still be considered empty,
|
|
// if the children are empty or non-editable.
|
|
//
|
|
nsresult
|
|
nsHTMLEditRules::IsEmptyBlock(nsIDOMNode *aNode, PRBool *outIsEmptyBlock)
|
|
{
|
|
if (!aNode || !outIsEmptyBlock) return NS_ERROR_NULL_POINTER;
|
|
*outIsEmptyBlock = PR_TRUE;
|
|
|
|
// nsresult res = NS_OK;
|
|
nsCOMPtr<nsIDOMNode> nodeToTest;
|
|
if (nsEditor::IsBlockNode(aNode)) nodeToTest = do_QueryInterface(aNode);
|
|
else nsCOMPtr<nsIDOMElement> block;
|
|
|
|
if (!nodeToTest) return NS_ERROR_NULL_POINTER;
|
|
return IsEmptyNode(nodeToTest, outIsEmptyBlock);
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////
|
|
// IsEmptyNode: figure out if aNode is an empty node.
|
|
// A block can have children and still be considered empty,
|
|
// if the children are empty or non-editable.
|
|
//
|
|
nsresult
|
|
nsHTMLEditRules::IsEmptyNode(nsIDOMNode *aNode, PRBool *outIsEmptyNode)
|
|
{
|
|
if (!aNode || !outIsEmptyNode) return NS_ERROR_NULL_POINTER;
|
|
*outIsEmptyNode = PR_TRUE;
|
|
|
|
// effeciency hack - special case if it's a text node
|
|
if (nsEditor::IsTextNode(aNode))
|
|
{
|
|
PRUint32 length = 0;
|
|
nsCOMPtr<nsIDOMCharacterData>nodeAsText;
|
|
nodeAsText = do_QueryInterface(aNode);
|
|
nodeAsText->GetLength(&length);
|
|
if (length) *outIsEmptyNode = PR_FALSE;
|
|
return NS_OK;
|
|
}
|
|
|
|
// if it's not a text node (handled above) and it's not a container,
|
|
// then we dont call it empty (it's an <hr>, or <br>, etc).
|
|
// Also, if it's an anchor then dont treat it as empty - even though
|
|
// anchors are containers, named anchors are "empty" but we don't
|
|
// want to treat them as such.
|
|
if (!mEditor->IsContainer(aNode) || IsAnchor(aNode))
|
|
{
|
|
*outIsEmptyNode = PR_FALSE;
|
|
return NS_OK;
|
|
}
|
|
|
|
// iterate over node. if no children, or all children are either
|
|
// empty text nodes or non-editable, then node qualifies as empty
|
|
nsCOMPtr<nsIContentIterator> iter;
|
|
nsCOMPtr<nsIContent> nodeAsContent = do_QueryInterface(aNode);
|
|
if (!nodeAsContent) return NS_ERROR_FAILURE;
|
|
nsresult res = nsComponentManager::CreateInstance(kContentIteratorCID,
|
|
nsnull,
|
|
nsIContentIterator::GetIID(),
|
|
getter_AddRefs(iter));
|
|
if (NS_FAILED(res)) return res;
|
|
res = iter->Init(nodeAsContent);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
while (NS_COMFALSE == iter->IsDone())
|
|
{
|
|
nsCOMPtr<nsIDOMNode> node;
|
|
nsCOMPtr<nsIContent> content;
|
|
res = iter->CurrentNode(getter_AddRefs(content));
|
|
if (NS_FAILED(res)) return res;
|
|
node = do_QueryInterface(content);
|
|
if (!node) return NS_ERROR_FAILURE;
|
|
|
|
// is the node editable and non-empty? if so, return false
|
|
if (mEditor->IsEditable(node))
|
|
{
|
|
if (nsEditor::IsTextNode(node))
|
|
{
|
|
PRUint32 length = 0;
|
|
nsCOMPtr<nsIDOMCharacterData>nodeAsText;
|
|
nodeAsText = do_QueryInterface(node);
|
|
nodeAsText->GetLength(&length);
|
|
if (length) *outIsEmptyNode = PR_FALSE;
|
|
}
|
|
else // an editable, non-text node. we aren't an empty block
|
|
{
|
|
// is it the node we are iterating over?
|
|
if (node.get() == aNode) break;
|
|
// otherwise it ain't empty
|
|
*outIsEmptyNode = PR_FALSE;
|
|
}
|
|
}
|
|
res = iter->Next();
|
|
if (NS_FAILED(res)) return res;
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////
|
|
// CreateMozDiv: makes a div with type = _moz
|
|
//
|
|
nsresult
|
|
nsHTMLEditRules::CreateMozDiv(nsIDOMNode *inParent, PRInt32 inOffset, nsCOMPtr<nsIDOMNode> *outDiv)
|
|
{
|
|
if (!inParent || !outDiv) return NS_ERROR_NULL_POINTER;
|
|
nsAutoString divType= "div";
|
|
*outDiv = nsnull;
|
|
nsresult res = mEditor->CreateNode(divType, inParent, inOffset, getter_AddRefs(*outDiv));
|
|
if (NS_FAILED(res)) return res;
|
|
// give it special moz attr
|
|
nsCOMPtr<nsIDOMElement> mozDivElem = do_QueryInterface(*outDiv);
|
|
res = mEditor->SetAttribute(mozDivElem, "type", "_moz");
|
|
return res;
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////
|
|
// GetPriorHTMLNode: returns the previous editable leaf node, if there is
|
|
// one within the <body>
|
|
//
|
|
nsresult
|
|
nsHTMLEditRules::GetPriorHTMLNode(nsIDOMNode *inNode, nsCOMPtr<nsIDOMNode> *outNode)
|
|
{
|
|
if (!outNode) return NS_ERROR_NULL_POINTER;
|
|
nsresult res = mEditor->GetPriorNode(inNode, PR_TRUE, getter_AddRefs(*outNode));
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
// if it's not in the body, then zero it out
|
|
if (*outNode && !InBody(*outNode))
|
|
{
|
|
*outNode = nsnull;
|
|
}
|
|
return res;
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////
|
|
// GetPriorHTMLNode: same as above but takes {parent,offset} instead of node
|
|
//
|
|
nsresult
|
|
nsHTMLEditRules::GetPriorHTMLNode(nsIDOMNode *inParent, PRInt32 inOffset, nsCOMPtr<nsIDOMNode> *outNode)
|
|
{
|
|
if (!outNode) return NS_ERROR_NULL_POINTER;
|
|
nsresult res = mEditor->GetPriorNode(inParent, inOffset, PR_TRUE, getter_AddRefs(*outNode));
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
// if it's not in the body, then zero it out
|
|
if (*outNode && !InBody(*outNode))
|
|
{
|
|
*outNode = nsnull;
|
|
}
|
|
return res;
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////
|
|
// GetNextHTMLNode: returns the previous editable leaf node, if there is
|
|
// one within the <body>
|
|
//
|
|
nsresult
|
|
nsHTMLEditRules::GetNextHTMLNode(nsIDOMNode *inNode, nsCOMPtr<nsIDOMNode> *outNode)
|
|
{
|
|
if (!outNode) return NS_ERROR_NULL_POINTER;
|
|
nsresult res = mEditor->GetNextNode(inNode, PR_TRUE, getter_AddRefs(*outNode));
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
// if it's not in the body, then zero it out
|
|
if (*outNode && !InBody(*outNode))
|
|
{
|
|
*outNode = nsnull;
|
|
}
|
|
return res;
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////
|
|
// GetNHTMLextNode: same as above but takes {parent,offset} instead of node
|
|
//
|
|
nsresult
|
|
nsHTMLEditRules::GetNextHTMLNode(nsIDOMNode *inParent, PRInt32 inOffset, nsCOMPtr<nsIDOMNode> *outNode)
|
|
{
|
|
if (!outNode) return NS_ERROR_NULL_POINTER;
|
|
nsresult res = mEditor->GetNextNode(inParent, inOffset, PR_TRUE, getter_AddRefs(*outNode));
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
// if it's not in the body, then zero it out
|
|
if (*outNode && !InBody(*outNode))
|
|
{
|
|
*outNode = nsnull;
|
|
}
|
|
return res;
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////
|
|
// GetTabAsNBSPs: stuff the right number of nbsp's into outString
|
|
//
|
|
nsresult
|
|
nsHTMLEditRules::GetTabAsNBSPs(nsString *outString)
|
|
{
|
|
if (!outString) return NS_ERROR_NULL_POINTER;
|
|
// XXX - this should get the right number from prefs
|
|
*outString = (char)nbsp; *outString += nbsp; *outString += nbsp; *outString += nbsp;
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////
|
|
// GetTabAsNBSPsAndSpace: stuff the right number of nbsp's followed by a
|
|
// space into outString
|
|
nsresult
|
|
nsHTMLEditRules::GetTabAsNBSPsAndSpace(nsString *outString)
|
|
{
|
|
if (!outString) return NS_ERROR_NULL_POINTER;
|
|
// XXX - this should get the right number from prefs
|
|
*outString = (char)nbsp; *outString += nbsp; *outString += nbsp; *outString += ' ';
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////
|
|
// IsFirstNode: Are we the first edittable node in our parent?
|
|
//
|
|
PRBool
|
|
nsHTMLEditRules::IsFirstNode(nsIDOMNode *aNode)
|
|
{
|
|
nsCOMPtr<nsIDOMNode> parent;
|
|
PRInt32 offset, j=0;
|
|
nsEditor::GetNodeLocation(aNode, &parent, &offset);
|
|
if (!offset) // easy case, we are first dom child
|
|
return PR_TRUE;
|
|
|
|
// ok, so there are earlier children. But are they editable???
|
|
nsCOMPtr<nsIDOMNodeList>childList;
|
|
nsCOMPtr<nsIDOMNode> child;
|
|
parent->GetChildNodes(getter_AddRefs(childList));
|
|
while (j < offset)
|
|
{
|
|
childList->Item(j, getter_AddRefs(child));
|
|
if (mEditor->IsEditable(child))
|
|
return PR_FALSE;
|
|
j++;
|
|
}
|
|
return PR_TRUE;
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////
|
|
// IsLastNode: Are we the first edittable node in our parent?
|
|
//
|
|
PRBool
|
|
nsHTMLEditRules::IsLastNode(nsIDOMNode *aNode)
|
|
{
|
|
nsCOMPtr<nsIDOMNode> parent;
|
|
PRInt32 offset, j;
|
|
PRUint32 numChildren;
|
|
nsEditor::GetNodeLocation(aNode, &parent, &offset);
|
|
nsEditor::GetLengthOfDOMNode(parent, numChildren);
|
|
if (offset+1 == (PRInt32)numChildren) // easy case, we are last dom child
|
|
return PR_TRUE;
|
|
|
|
// ok, so there are later children. But are they editable???
|
|
j = offset+1;
|
|
nsCOMPtr<nsIDOMNodeList>childList;
|
|
nsCOMPtr<nsIDOMNode> child;
|
|
parent->GetChildNodes(getter_AddRefs(childList));
|
|
while (j < (PRInt32)numChildren)
|
|
{
|
|
childList->Item(j, getter_AddRefs(child));
|
|
if (mEditor->IsEditable(child))
|
|
return PR_FALSE;
|
|
j++;
|
|
}
|
|
return PR_TRUE;
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////
|
|
// AtStartOfBlock: is node/offset at the start of the editable material in this block?
|
|
//
|
|
PRBool
|
|
nsHTMLEditRules::AtStartOfBlock(nsIDOMNode *aNode, PRInt32 aOffset, nsIDOMNode *aBlock)
|
|
{
|
|
nsCOMPtr<nsIDOMCharacterData> nodeAsText = do_QueryInterface(aNode);
|
|
if (nodeAsText && aOffset) return PR_FALSE; // there are chars in front of us
|
|
|
|
nsCOMPtr<nsIDOMNode> priorNode;
|
|
nsresult res = GetPriorHTMLNode(aNode, aOffset, &priorNode);
|
|
if (NS_FAILED(res)) return PR_TRUE;
|
|
if (!priorNode) return PR_TRUE;
|
|
nsCOMPtr<nsIDOMNode> blockParent = mEditor->GetBlockNodeParent(priorNode);
|
|
if (blockParent && (blockParent.get() == aBlock)) return PR_FALSE;
|
|
return PR_TRUE;
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////
|
|
// AtEndOfBlock: is node/offset at the end of the editable material in this block?
|
|
//
|
|
PRBool
|
|
nsHTMLEditRules::AtEndOfBlock(nsIDOMNode *aNode, PRInt32 aOffset, nsIDOMNode *aBlock)
|
|
{
|
|
nsCOMPtr<nsIDOMCharacterData> nodeAsText = do_QueryInterface(aNode);
|
|
if (nodeAsText)
|
|
{
|
|
PRUint32 strLength;
|
|
nodeAsText->GetLength(&strLength);
|
|
if (strLength > aOffset) return PR_FALSE; // there are chars in after us
|
|
}
|
|
nsCOMPtr<nsIDOMNode> nextNode;
|
|
nsresult res = GetNextHTMLNode(aNode, aOffset, &nextNode);
|
|
if (NS_FAILED(res)) return PR_TRUE;
|
|
if (!nextNode) return PR_TRUE;
|
|
nsCOMPtr<nsIDOMNode> blockParent = mEditor->GetBlockNodeParent(nextNode);
|
|
if (blockParent && (blockParent.get() == aBlock)) return PR_FALSE;
|
|
return PR_TRUE;
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////
|
|
// GetPromotedPoint: figure out where a start or end point for a block
|
|
// operation really is
|
|
nsresult
|
|
nsHTMLEditRules::GetPromotedPoint(RulesEndpoint aWhere, nsIDOMNode *aNode, PRInt32 aOffset,
|
|
PRInt32 actionID, nsCOMPtr<nsIDOMNode> *outNode, PRInt32 *outOffset)
|
|
{
|
|
nsresult res = NS_OK;
|
|
nsCOMPtr<nsIDOMNode> node = aNode;
|
|
nsCOMPtr<nsIDOMNode> parent = aNode;
|
|
PRInt32 offset = aOffset;
|
|
|
|
if (IsBody(aNode))
|
|
{
|
|
// we cant go any higher
|
|
*outNode = do_QueryInterface(aNode);
|
|
*outOffset = aOffset;
|
|
return res;
|
|
}
|
|
|
|
if (aWhere == kStart)
|
|
{
|
|
// some special casing for text nodes
|
|
if (nsEditor::IsTextNode(aNode))
|
|
{
|
|
res = nsEditor::GetNodeLocation(aNode, &parent, &offset);
|
|
if (NS_FAILED(res)) return res;
|
|
}
|
|
else
|
|
{
|
|
node = nsEditor::GetChildAt(parent,offset);
|
|
if (!node) node = parent;
|
|
}
|
|
|
|
// if this is an inline node who's block parent is the body,
|
|
// back up through any prior inline nodes that
|
|
// aren't across a <br> from us.
|
|
|
|
if (!nsEditor::IsBlockNode(node))
|
|
{
|
|
nsCOMPtr<nsIDOMNode> block = nsEditor::GetBlockNodeParent(node);
|
|
if (IsBody(block))
|
|
{
|
|
nsCOMPtr<nsIDOMNode> prevNode;
|
|
prevNode = nsEditor::NextNodeInBlock(node, nsEditor::kIterBackward);
|
|
while (prevNode)
|
|
{
|
|
if (IsBreak(prevNode))
|
|
break;
|
|
if (nsEditor::IsBlockNode(prevNode))
|
|
break;
|
|
node = prevNode;
|
|
prevNode = nsEditor::NextNodeInBlock(node, nsEditor::kIterBackward);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// just grap the whole block
|
|
node = block;
|
|
}
|
|
}
|
|
|
|
// finding the real start for this point. look up the tree for as long as we are the
|
|
// first node in the container, and as long as we haven't hit the body node.
|
|
nsEditor::GetNodeLocation(node, &parent, &offset);
|
|
if (NS_FAILED(res)) return res;
|
|
while ((IsFirstNode(node)) && (!IsBody(parent)))
|
|
{
|
|
node = parent;
|
|
res = nsEditor::GetNodeLocation(node, &parent, &offset);
|
|
if (NS_FAILED(res)) return res;
|
|
}
|
|
*outNode = parent;
|
|
*outOffset = offset;
|
|
return res;
|
|
}
|
|
|
|
if (aWhere == kEnd)
|
|
{
|
|
// some special casing for text nodes
|
|
if (nsEditor::IsTextNode(aNode))
|
|
{
|
|
nsEditor::GetNodeLocation(aNode, &parent, &offset);
|
|
}
|
|
else
|
|
{
|
|
node = nsEditor::GetChildAt(parent,offset);
|
|
if (!node) node = parent;
|
|
}
|
|
|
|
if (!node)
|
|
node = parent;
|
|
|
|
// if this is an inline node who's block parent is the body,
|
|
// look ahead through any further inline nodes that
|
|
// aren't across a <br> from us, and that are enclosed in the same block.
|
|
|
|
if (!nsEditor::IsBlockNode(node))
|
|
{
|
|
nsCOMPtr<nsIDOMNode> block = nsEditor::GetBlockNodeParent(node);
|
|
if (IsBody(block))
|
|
{
|
|
nsCOMPtr<nsIDOMNode> nextNode;
|
|
nextNode = nsEditor::NextNodeInBlock(node, nsEditor::kIterForward);
|
|
while (nextNode)
|
|
{
|
|
if (IsBreak(nextNode))
|
|
break;
|
|
if (nsEditor::IsBlockNode(nextNode))
|
|
break;
|
|
node = nextNode;
|
|
nextNode = nsEditor::NextNodeInBlock(node, nsEditor::kIterForward);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// just grap the whole block
|
|
node = block;
|
|
}
|
|
}
|
|
|
|
// finding the real end for this point. look up the tree for as long as we are the
|
|
// last node in the container, and as long as we haven't hit the body node.
|
|
nsEditor::GetNodeLocation(node, &parent, &offset);
|
|
if (NS_FAILED(res)) return res;
|
|
while ((IsLastNode(node)) && (!IsBody(parent)))
|
|
{
|
|
node = parent;
|
|
res = nsEditor::GetNodeLocation(node, &parent, &offset);
|
|
if (NS_FAILED(res)) return res;
|
|
}
|
|
*outNode = parent;
|
|
offset++; // add one since this in an endpoint - want to be AFTER node.
|
|
*outOffset = offset;
|
|
return res;
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////
|
|
// GetPromotedRanges: run all the selection range endpoint through
|
|
// GetPromotedPoint()
|
|
//
|
|
nsresult
|
|
nsHTMLEditRules::GetPromotedRanges(nsIDOMSelection *inSelection,
|
|
nsCOMPtr<nsISupportsArray> *outArrayOfRanges,
|
|
PRInt32 inOperationType)
|
|
{
|
|
if (!inSelection || !outArrayOfRanges) return NS_ERROR_NULL_POINTER;
|
|
|
|
nsresult res = NS_NewISupportsArray(getter_AddRefs(*outArrayOfRanges));
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
PRInt32 rangeCount;
|
|
res = inSelection->GetRangeCount(&rangeCount);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
PRInt32 i;
|
|
nsCOMPtr<nsIDOMRange> selectionRange;
|
|
nsCOMPtr<nsIDOMNode> startNode;
|
|
nsCOMPtr<nsIDOMNode> endNode;
|
|
PRInt32 startOffset, endOffset;
|
|
|
|
for (i = 0; i < rangeCount; i++)
|
|
{
|
|
res = inSelection->GetRangeAt(i, getter_AddRefs(selectionRange));
|
|
if (NS_FAILED(res)) return res;
|
|
res = selectionRange->GetStartParent(getter_AddRefs(startNode));
|
|
if (NS_FAILED(res)) return res;
|
|
res = selectionRange->GetStartOffset(&startOffset);
|
|
if (NS_FAILED(res)) return res;
|
|
res = selectionRange->GetEndParent(getter_AddRefs(endNode));
|
|
if (NS_FAILED(res)) return res;
|
|
res = selectionRange->GetEndOffset(&endOffset);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
// make a new adjusted range to represent the appropriate block content
|
|
// this is tricky. the basic idea is to push out the range endpoints
|
|
// to truly enclose the blocks that we will affect
|
|
|
|
nsCOMPtr<nsIDOMNode> opStartNode;
|
|
nsCOMPtr<nsIDOMNode> opEndNode;
|
|
PRInt32 opStartOffset, opEndOffset;
|
|
nsCOMPtr<nsIDOMRange> opRange;
|
|
|
|
res = GetPromotedPoint( kStart, startNode, startOffset, inOperationType, &opStartNode, &opStartOffset);
|
|
if (NS_FAILED(res)) return res;
|
|
res = GetPromotedPoint( kEnd, endNode, endOffset, inOperationType, &opEndNode, &opEndOffset);
|
|
if (NS_FAILED(res)) return res;
|
|
res = selectionRange->Clone(getter_AddRefs(opRange));
|
|
if (NS_FAILED(res)) return res;
|
|
opRange->SetStart(opStartNode, opStartOffset);
|
|
if (NS_FAILED(res)) return res;
|
|
opRange->SetEnd(opEndNode, opEndOffset);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
// stuff new opRange into nsISupportsArray
|
|
nsCOMPtr<nsISupports> isupports = do_QueryInterface(opRange);
|
|
(*outArrayOfRanges)->AppendElement(isupports);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////
|
|
// GetNodesForOperation: run through the ranges in the array and construct
|
|
// a new array of nodes to be acted on.
|
|
//
|
|
nsresult
|
|
nsHTMLEditRules::GetNodesForOperation(nsISupportsArray *inArrayOfRanges,
|
|
nsCOMPtr<nsISupportsArray> *outArrayOfNodes,
|
|
PRInt32 inOperationType)
|
|
{
|
|
if (!inArrayOfRanges || !outArrayOfNodes) return NS_ERROR_NULL_POINTER;
|
|
|
|
nsresult res = NS_NewISupportsArray(getter_AddRefs(*outArrayOfNodes));
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
PRUint32 rangeCount;
|
|
res = inArrayOfRanges->Count(&rangeCount);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
PRInt32 i;
|
|
nsCOMPtr<nsIDOMRange> opRange;
|
|
nsCOMPtr<nsISupports> isupports;
|
|
nsCOMPtr<nsIContentIterator> iter;
|
|
|
|
for (i = 0; i < (PRInt32)rangeCount; i++)
|
|
{
|
|
isupports = (dont_AddRef)(inArrayOfRanges->ElementAt(i));
|
|
opRange = do_QueryInterface(isupports);
|
|
res = nsComponentManager::CreateInstance(kSubtreeIteratorCID,
|
|
nsnull,
|
|
nsIContentIterator::GetIID(),
|
|
getter_AddRefs(iter));
|
|
if (NS_FAILED(res)) return res;
|
|
res = iter->Init(opRange);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
while (NS_COMFALSE == iter->IsDone())
|
|
{
|
|
nsCOMPtr<nsIDOMNode> node;
|
|
nsCOMPtr<nsIContent> content;
|
|
res = iter->CurrentNode(getter_AddRefs(content));
|
|
if (NS_FAILED(res)) return res;
|
|
node = do_QueryInterface(content);
|
|
if (!node) return NS_ERROR_FAILURE;
|
|
isupports = do_QueryInterface(node);
|
|
(*outArrayOfNodes)->AppendElement(isupports);
|
|
res = iter->Next();
|
|
if (NS_FAILED(res)) return res;
|
|
}
|
|
}
|
|
return res;
|
|
}
|
|
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////
|
|
// GetChildNodesForOperation:
|
|
//
|
|
nsresult
|
|
nsHTMLEditRules::GetChildNodesForOperation(nsIDOMNode *inNode,
|
|
nsCOMPtr<nsISupportsArray> *outArrayOfNodes)
|
|
{
|
|
if (!inNode || !outArrayOfNodes) return NS_ERROR_NULL_POINTER;
|
|
|
|
nsresult res = NS_NewISupportsArray(getter_AddRefs(*outArrayOfNodes));
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
nsCOMPtr<nsIDOMNodeList> childNodes;
|
|
res = inNode->GetChildNodes(getter_AddRefs(childNodes));
|
|
if (NS_FAILED(res)) return res;
|
|
PRUint32 childCount;
|
|
res = childNodes->GetLength(&childCount);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
PRUint32 i;
|
|
nsCOMPtr<nsIDOMNode> node;
|
|
nsCOMPtr<nsISupports> isupports;
|
|
for (i = 0; i < childCount; i++)
|
|
{
|
|
res = childNodes->Item( i, getter_AddRefs(node));
|
|
if (!node) return NS_ERROR_FAILURE;
|
|
isupports = do_QueryInterface(node);
|
|
(*outArrayOfNodes)->AppendElement(isupports);
|
|
if (NS_FAILED(res)) return res;
|
|
}
|
|
return res;
|
|
}
|
|
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////
|
|
// MakeTransitionList: detect all the transitions in the array, where a
|
|
// transition means that adjacent nodes in the array
|
|
// don't have the same parent.
|
|
//
|
|
nsresult
|
|
nsHTMLEditRules::MakeTransitionList(nsISupportsArray *inArrayOfNodes,
|
|
nsVoidArray *inTransitionArray)
|
|
{
|
|
if (!inArrayOfNodes || !inTransitionArray) return NS_ERROR_NULL_POINTER;
|
|
|
|
PRUint32 listCount;
|
|
PRInt32 i;
|
|
inArrayOfNodes->Count(&listCount);
|
|
nsVoidArray transitionList;
|
|
nsCOMPtr<nsIDOMNode> prevElementParent;
|
|
nsCOMPtr<nsIDOMNode> curElementParent;
|
|
|
|
for (i=0; i<(PRInt32)listCount; i++)
|
|
{
|
|
nsCOMPtr<nsISupports> isupports = (dont_AddRef)(inArrayOfNodes->ElementAt(i));
|
|
nsCOMPtr<nsIDOMNode> transNode( do_QueryInterface(isupports ) );
|
|
transNode->GetParentNode(getter_AddRefs(curElementParent));
|
|
if (curElementParent != prevElementParent)
|
|
{
|
|
// different parents, or seperated by <br>: transition point
|
|
inTransitionArray->InsertElementAt((void*)PR_TRUE,i);
|
|
}
|
|
else
|
|
{
|
|
// same parents: these nodes grew up together
|
|
inTransitionArray->InsertElementAt((void*)PR_FALSE,i);
|
|
}
|
|
prevElementParent = curElementParent;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////
|
|
// ReplaceContainer: replace inNode with a new node (outNode) which is contructed
|
|
// to be of type aNodeType. Put inNodes children into outNode.
|
|
// Callers responsibility to make sure inNode's children can
|
|
// go in outNode.
|
|
nsresult
|
|
nsHTMLEditRules::ReplaceContainer(nsIDOMNode *inNode,
|
|
nsCOMPtr<nsIDOMNode> *outNode,
|
|
const nsString &aNodeType)
|
|
{
|
|
if (!inNode || !outNode)
|
|
return NS_ERROR_NULL_POINTER;
|
|
nsresult res;
|
|
nsCOMPtr<nsIDOMNode> parent;
|
|
PRInt32 offset;
|
|
res = nsEditor::GetNodeLocation(inNode, &parent, &offset);
|
|
if (NS_FAILED(res)) return res;
|
|
res = mEditor->CreateNode(aNodeType, parent, offset, getter_AddRefs(*outNode));
|
|
if (NS_FAILED(res)) return res;
|
|
PRBool bHasMoreChildren;
|
|
inNode->HasChildNodes(&bHasMoreChildren);
|
|
nsCOMPtr<nsIDOMNode> child;
|
|
offset = 0;
|
|
while (bHasMoreChildren)
|
|
{
|
|
inNode->GetLastChild(getter_AddRefs(child));
|
|
res = mEditor->DeleteNode(child);
|
|
if (NS_FAILED(res)) return res;
|
|
res = mEditor->InsertNode(child, *outNode, 0);
|
|
if (NS_FAILED(res)) return res;
|
|
inNode->HasChildNodes(&bHasMoreChildren);
|
|
}
|
|
res = mEditor->DeleteNode(inNode);
|
|
return res;
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////
|
|
// RemoveContainer: remove inNode, reparenting it's children into their
|
|
// the parent of inNode
|
|
//
|
|
nsresult
|
|
nsHTMLEditRules::RemoveContainer(nsIDOMNode *inNode)
|
|
{
|
|
if (!inNode)
|
|
return NS_ERROR_NULL_POINTER;
|
|
if (IsBody(inNode))
|
|
return NS_ERROR_UNEXPECTED;
|
|
nsresult res;
|
|
nsCOMPtr<nsIDOMNode> parent;
|
|
PRInt32 offset;
|
|
res = nsEditor::GetNodeLocation(inNode, &parent, &offset);
|
|
if (NS_FAILED(res)) return res;
|
|
PRBool bHasMoreChildren;
|
|
inNode->HasChildNodes(&bHasMoreChildren);
|
|
nsCOMPtr<nsIDOMNode> child;
|
|
while (bHasMoreChildren)
|
|
{
|
|
inNode->GetLastChild(getter_AddRefs(child));
|
|
res = mEditor->DeleteNode(child);
|
|
if (NS_FAILED(res)) return res;
|
|
res = mEditor->InsertNode(child, parent, offset);
|
|
if (NS_FAILED(res)) return res;
|
|
inNode->HasChildNodes(&bHasMoreChildren);
|
|
}
|
|
res = mEditor->DeleteNode(inNode);
|
|
return res;
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////
|
|
// InsertContainerAbove: insert a new parent for inNode, returned in outNode,
|
|
// which is contructed to be of type aNodeType. outNode becomes
|
|
// a child of inNode's earlier parent.
|
|
// Callers responsibility to make sure inNode's can be child
|
|
// of outNode, and outNode can be child of old parent.
|
|
nsresult
|
|
nsHTMLEditRules::InsertContainerAbove(nsIDOMNode *inNode,
|
|
nsCOMPtr<nsIDOMNode> *outNode,
|
|
const nsString &aNodeType)
|
|
{
|
|
if (!inNode || !outNode)
|
|
return NS_ERROR_NULL_POINTER;
|
|
nsresult res;
|
|
nsCOMPtr<nsIDOMNode> parent;
|
|
PRInt32 offset;
|
|
res = nsEditor::GetNodeLocation(inNode, &parent, &offset);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
// make new parent, outNode
|
|
res = mEditor->CreateNode(aNodeType, parent, offset, getter_AddRefs(*outNode));
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
// put inNode in new parent, outNode
|
|
res = mEditor->DeleteNode(inNode);
|
|
if (NS_FAILED(res)) return res;
|
|
res = mEditor->InsertNode(inNode, *outNode, 0);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
|
|
|
|
/********************************************************
|
|
* main implementation methods
|
|
********************************************************/
|
|
|
|
///////////////////////////////////////////////////////////////////////////
|
|
// InsertTab: top level logic for determining how to insert a tab
|
|
//
|
|
nsresult
|
|
nsHTMLEditRules::InsertTab(nsIDOMSelection *aSelection,
|
|
PRBool *aCancel,
|
|
nsString *outString)
|
|
{
|
|
nsCOMPtr<nsIDOMNode> parentNode;
|
|
PRInt32 offset;
|
|
PRBool isPRE;
|
|
PRBool isNextWhiteSpace;
|
|
PRBool isPrevWhiteSpace;
|
|
|
|
nsresult res = mEditor->GetStartNodeAndOffset(aSelection, &parentNode, &offset);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
if (!parentNode) return NS_ERROR_FAILURE;
|
|
|
|
res = mEditor->IsPreformatted(parentNode,&isPRE);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
if (isPRE)
|
|
{
|
|
*outString = '\t';
|
|
return NS_OK;
|
|
}
|
|
|
|
res = mEditor->IsNextCharWhitespace(parentNode, offset, &isNextWhiteSpace);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
res = mEditor->IsPrevCharWhitespace(parentNode, offset, &isPrevWhiteSpace);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
if (isPrevWhiteSpace)
|
|
{
|
|
// prev character is a whitespace; Need to
|
|
// insert nbsp's BEFORE the space
|
|
|
|
// XXX for now put tab in wrong place
|
|
if (isNextWhiteSpace)
|
|
{
|
|
GetTabAsNBSPs(outString);
|
|
return NS_OK;
|
|
}
|
|
GetTabAsNBSPsAndSpace(outString);
|
|
return NS_OK;
|
|
}
|
|
|
|
if (isNextWhiteSpace)
|
|
{
|
|
// character after us is ws. insert nbsps
|
|
GetTabAsNBSPs(outString);
|
|
return NS_OK;
|
|
}
|
|
|
|
// else we are in middle of a word; use n-1 nbsp's plus a space
|
|
GetTabAsNBSPsAndSpace(outString);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////
|
|
// InsertSpace: top level logic for determining how to insert a space
|
|
//
|
|
nsresult
|
|
nsHTMLEditRules::InsertSpace(nsIDOMSelection *aSelection,
|
|
PRBool *aCancel,
|
|
nsString *outString)
|
|
{
|
|
nsCOMPtr<nsIDOMNode> parentNode;
|
|
PRInt32 offset;
|
|
PRBool isPRE;
|
|
PRBool isNextWhiteSpace;
|
|
PRBool isPrevWhiteSpace;
|
|
|
|
nsresult res = mEditor->GetStartNodeAndOffset(aSelection, &parentNode, &offset);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
if (!parentNode) return NS_ERROR_FAILURE;
|
|
|
|
res = mEditor->IsPreformatted(parentNode,&isPRE);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
if (isPRE)
|
|
{
|
|
*outString = " ";
|
|
return NS_OK;
|
|
}
|
|
|
|
res = mEditor->IsNextCharWhitespace(parentNode, offset, &isNextWhiteSpace);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
res = mEditor->IsPrevCharWhitespace(parentNode, offset, &isPrevWhiteSpace);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
if (isPrevWhiteSpace)
|
|
{
|
|
// prev character is a whitespace; Need to
|
|
// insert nbsp BEFORE the space
|
|
|
|
// XXX for now put in wrong place
|
|
if (isNextWhiteSpace)
|
|
{
|
|
*outString = (char)nbsp;
|
|
return NS_OK;
|
|
}
|
|
*outString = (char)nbsp;
|
|
return NS_OK;
|
|
}
|
|
|
|
if (isNextWhiteSpace)
|
|
{
|
|
// character after us is ws. insert nbsp
|
|
*outString = (char)nbsp;
|
|
return NS_OK;
|
|
}
|
|
|
|
// else just a space
|
|
*outString = " ";
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////
|
|
// ReturnInHeader: do the right thing for returns pressed in headers
|
|
//
|
|
nsresult
|
|
nsHTMLEditRules::ReturnInHeader(nsIDOMSelection *aSelection,
|
|
nsIDOMNode *aHeader,
|
|
nsIDOMNode *aNode,
|
|
PRInt32 aOffset)
|
|
{
|
|
if (!aSelection || !aHeader || !aNode) return NS_ERROR_NULL_POINTER;
|
|
|
|
// remeber where the header is
|
|
nsCOMPtr<nsIDOMNode> headerParent;
|
|
PRInt32 offset;
|
|
nsresult res = nsEditor::GetNodeLocation(aHeader, &headerParent, &offset);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
// split the header
|
|
PRInt32 newOffset;
|
|
res = mEditor->SplitNodeDeep( aHeader, aNode, aOffset, &newOffset);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
// if the new (righthand) header node is empty, delete it
|
|
PRBool isEmpty;
|
|
res = IsEmptyBlock(aHeader, &isEmpty);
|
|
if (NS_FAILED(res)) return res;
|
|
if (isEmpty)
|
|
{
|
|
res = mEditor->DeleteNode(aHeader);
|
|
if (NS_FAILED(res)) return res;
|
|
res = aSelection->Collapse(headerParent,offset+1);
|
|
return res;
|
|
}
|
|
// else rewrap it in a mozdiv
|
|
nsCOMPtr<nsIDOMNode> newBlock;
|
|
res = ReplaceContainer(aHeader,&newBlock,"div");
|
|
if (NS_FAILED(res)) return res;
|
|
// give it special moz attr
|
|
nsCOMPtr<nsIDOMElement> mozDivElem = do_QueryInterface(newBlock);
|
|
res = mEditor->SetAttribute(mozDivElem, "type", "_moz");
|
|
if (NS_FAILED(res)) return res;
|
|
res = aSelection->Collapse(newBlock,0);
|
|
return res;
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////
|
|
// ReturnInParagraph: do the right thing for returns pressed in paragraphs
|
|
//
|
|
nsresult
|
|
nsHTMLEditRules::ReturnInParagraph(nsIDOMSelection *aSelection,
|
|
nsIDOMNode *aHeader,
|
|
nsIDOMNode *aNode,
|
|
PRInt32 aOffset,
|
|
PRBool *aCancel)
|
|
{
|
|
if (!aSelection || !aHeader || !aNode || !aCancel) return NS_ERROR_NULL_POINTER;
|
|
*aCancel = PR_FALSE;
|
|
|
|
nsCOMPtr<nsIDOMNode> sibling;
|
|
nsresult res = NS_OK;
|
|
|
|
//bombs away - nuking this for now...
|
|
#if 0
|
|
|
|
// easy case, in a text node:
|
|
if (mEditor->IsTextNode(aNode))
|
|
{
|
|
nsCOMPtr<nsIDOMText> textNode = do_QueryInterface(aNode);
|
|
PRUint32 strLength;
|
|
res = textNode->GetLength(&strLength);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
// at beginning of text node?
|
|
if (!aOffset)
|
|
{
|
|
// is there a BR prior to it?
|
|
aNode->GetPreviousSibling(getter_AddRefs(sibling));
|
|
if (!sibling)
|
|
{
|
|
// no previous sib, so
|
|
// just fall out to default of inserting a BR
|
|
return res;
|
|
}
|
|
if (IsBreak(sibling))
|
|
{
|
|
PRInt32 newOffset;
|
|
*aCancel = PR_TRUE;
|
|
// get rid of the break
|
|
res = mEditor->DeleteNode(sibling);
|
|
if (NS_FAILED(res)) return res;
|
|
// split the paragraph
|
|
res = mEditor->SplitNodeDeep( aHeader, aNode, aOffset, &newOffset);
|
|
if (NS_FAILED(res)) return res;
|
|
// position selection inside textnode
|
|
res = aSelection->Collapse(aNode,0);
|
|
}
|
|
// else just fall out to default of inserting a BR
|
|
return res;
|
|
}
|
|
// at end of text node?
|
|
if (aOffset == strLength)
|
|
{
|
|
// is there a BR after to it?
|
|
res = aNode->GetNextSibling(getter_AddRefs(sibling));
|
|
if (!sibling)
|
|
{
|
|
// no next sib, so
|
|
// just fall out to default of inserting a BR
|
|
return res;
|
|
}
|
|
if (IsBreak(sibling))
|
|
{
|
|
PRInt32 newOffset;
|
|
*aCancel = PR_TRUE;
|
|
// get rid of the break
|
|
res = mEditor->DeleteNode(sibling);
|
|
if (NS_FAILED(res)) return res;
|
|
// split the paragraph
|
|
res = mEditor->SplitNodeDeep( aHeader, aNode, aOffset, &newOffset);
|
|
if (NS_FAILED(res)) return res;
|
|
// position selection inside textnode
|
|
res = aSelection->Collapse(aNode,0);
|
|
}
|
|
// else just fall out to default of inserting a BR
|
|
return res;
|
|
}
|
|
// inside text node
|
|
// just fall out to default of inserting a BR
|
|
return res;
|
|
}
|
|
|
|
// not in a text node. are we next to BR's?
|
|
// XXX
|
|
#endif
|
|
|
|
return res;
|
|
}
|
|
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////
|
|
// ReturnInListItem: do the right thing for returns pressed in list items
|
|
//
|
|
nsresult
|
|
nsHTMLEditRules::ReturnInListItem(nsIDOMSelection *aSelection,
|
|
nsIDOMNode *aListItem,
|
|
nsIDOMNode *aNode,
|
|
PRInt32 aOffset)
|
|
{
|
|
if (!aSelection || !aListItem || !aNode) return NS_ERROR_NULL_POINTER;
|
|
nsresult res = NS_OK;
|
|
|
|
nsCOMPtr<nsIDOMNode> listitem;
|
|
|
|
// sanity check
|
|
NS_PRECONDITION(PR_TRUE == IsListItem(aListItem), "expected a list item and didnt get one");
|
|
|
|
// if we are in an empty listitem, then we want to pop up out of the list
|
|
PRBool isEmpty;
|
|
res = IsEmptyBlock(aListItem, &isEmpty);
|
|
if (NS_FAILED(res)) return res;
|
|
if (isEmpty)
|
|
{
|
|
nsCOMPtr<nsIDOMNode> list, listparent;
|
|
PRInt32 offset;
|
|
list = nsEditor::GetBlockNodeParent(aListItem);
|
|
res = nsEditor::GetNodeLocation(list, &listparent, &offset);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
// are we in a sublist?
|
|
if (IsList(listparent)) //in a sublist
|
|
{
|
|
// if so, move this list item out of this list and into the grandparent list
|
|
res = mEditor->DeleteNode(aListItem);
|
|
if (NS_FAILED(res)) return res;
|
|
res = mEditor->InsertNode(aListItem,listparent,offset+1);
|
|
if (NS_FAILED(res)) return res;
|
|
res = aSelection->Collapse(aListItem,0);
|
|
}
|
|
else
|
|
{
|
|
// otherwise kill this listitem and set the selection to after the parent list
|
|
res = mEditor->DeleteNode(aListItem);
|
|
if (NS_FAILED(res)) return res;
|
|
res = aSelection->Collapse(listparent,offset+1);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
// else we want a new list item at the same list level
|
|
PRInt32 newOffset;
|
|
res = mEditor->SplitNodeDeep( aListItem, aNode, aOffset, &newOffset);
|
|
if (NS_FAILED(res)) return res;
|
|
res = aSelection->Collapse(aListItem,0);
|
|
return res;
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////
|
|
// ShouldMakeEmptyBlock: determine if a block transformation should make
|
|
// a new empty block, or instead transform a block
|
|
//
|
|
nsresult
|
|
nsHTMLEditRules::ShouldMakeEmptyBlock(nsIDOMSelection *aSelection,
|
|
const nsString *blockTag,
|
|
PRBool *outMakeEmpty)
|
|
{
|
|
// a note about strategy:
|
|
// this routine will be called by the rules code to figure out
|
|
// if it should do something, or let the nsHTMLEditor default
|
|
// action happen. The default action is to insert a new block.
|
|
// Note that if _nothing_ should happen, ie, the selection is
|
|
// already entireyl inside a block (or blocks) or the correct type,
|
|
// then you don't want to return true in outMakeEmpty, since the
|
|
// defualt code will insert a new empty block anyway, rather than
|
|
// doing nothing. So we have to detect that case and return false.
|
|
|
|
if (!aSelection || !outMakeEmpty) return NS_ERROR_NULL_POINTER;
|
|
nsresult res = NS_OK;
|
|
|
|
// if the selection is collapsed, and
|
|
// if we in the body, or after a <br> with
|
|
// no more inline content before the next block, then we want
|
|
// a new block. Otherwise we want to trasform a block
|
|
|
|
// xxx possible bug: selection could be not callapsed, but
|
|
// still empty. it would be nice to have a call for this: IsEmptySelection()
|
|
|
|
PRBool isCollapsed;
|
|
res = aSelection->GetIsCollapsed(&isCollapsed);
|
|
if (NS_FAILED(res)) return res;
|
|
if (isCollapsed)
|
|
{
|
|
nsCOMPtr<nsIDOMNode> parent;
|
|
PRInt32 offset;
|
|
res = nsEditor::GetStartNodeAndOffset(aSelection, &parent, &offset);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
// is selection point in the body?
|
|
if (IsBody(parent))
|
|
{
|
|
*outMakeEmpty = PR_TRUE;
|
|
return res;
|
|
}
|
|
|
|
// see if block parent is already right kind of block.
|
|
// See strategy comment above.
|
|
nsCOMPtr<nsIDOMNode> block;
|
|
if (!nsEditor::IsBlockNode(parent))
|
|
block = nsEditor::GetBlockNodeParent(parent);
|
|
else
|
|
block = parent;
|
|
if (block)
|
|
{
|
|
nsAutoString tag;
|
|
nsEditor::GetTagString(block,tag);
|
|
if (tag == *blockTag)
|
|
{
|
|
*outMakeEmpty = PR_FALSE;
|
|
return res;
|
|
}
|
|
}
|
|
|
|
// are we in a textnode or inline node?
|
|
if (!nsEditor::IsBlockNode(parent))
|
|
{
|
|
// we must be in a text or inline node - convert existing block
|
|
*outMakeEmpty = PR_FALSE;
|
|
return res;
|
|
}
|
|
|
|
// is it after a <br> with no inline nodes after it, or a <br> after it??
|
|
if (offset)
|
|
{
|
|
nsCOMPtr<nsIDOMNode> prevChild, nextChild, tmp;
|
|
prevChild = nsEditor::GetChildAt(parent, offset-1);
|
|
while (prevChild && !mEditor->IsEditable(prevChild))
|
|
{
|
|
// search back until we either find an editable node,
|
|
// or hit the beginning of the block
|
|
tmp = nsEditor::NextNodeInBlock(prevChild, nsEditor::kIterBackward);
|
|
prevChild = tmp;
|
|
}
|
|
|
|
if (prevChild && IsBreak(prevChild))
|
|
{
|
|
nextChild = nsEditor::GetChildAt(parent, offset);
|
|
while (nextChild && !mEditor->IsEditable(nextChild))
|
|
{
|
|
// search back until we either find an editable node,
|
|
// or hit the beginning of the block
|
|
tmp = nsEditor::NextNodeInBlock(nextChild, nsEditor::kIterForward);
|
|
nextChild = tmp;
|
|
}
|
|
if (!nextChild || IsBreak(nextChild) || nsEditor::IsBlockNode(nextChild))
|
|
{
|
|
// we are after a <br> and not before inline content,
|
|
// or we are between <br>s.
|
|
// make an empty block
|
|
*outMakeEmpty = PR_FALSE;
|
|
return res;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
// otherwise transform an existing block
|
|
*outMakeEmpty = PR_FALSE;
|
|
return res;
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////
|
|
// ApplyBlockStyle: do whatever it takes to make the list of nodes into
|
|
// one or more blocks of type blockTag.
|
|
//
|
|
nsresult
|
|
nsHTMLEditRules::ApplyBlockStyle(nsISupportsArray *arrayOfNodes, const nsString *aBlockTag)
|
|
{
|
|
// intent of this routine is to be used for converting to/from
|
|
// headers, paragraphs (or moz-divs), pre, and address. Those blocks
|
|
// that pretty much just contain inline things...
|
|
|
|
if (!arrayOfNodes || !aBlockTag) return NS_ERROR_NULL_POINTER;
|
|
nsresult res = NS_OK;
|
|
|
|
nsCOMPtr<nsIDOMNode> curNode, curParent, curBlock, newBlock;
|
|
PRInt32 offset;
|
|
PRUint32 listCount;
|
|
arrayOfNodes->Count(&listCount);
|
|
|
|
PRUint32 i;
|
|
for (i=0; i<listCount; i++)
|
|
{
|
|
// get the node to act on, and it's location
|
|
nsCOMPtr<nsISupports> isupports = (dont_AddRef)(arrayOfNodes->ElementAt(i));
|
|
curNode = do_QueryInterface(isupports);
|
|
res = nsEditor::GetNodeLocation(curNode, &curParent, &offset);
|
|
if (NS_FAILED(res)) return res;
|
|
nsAutoString curNodeTag;
|
|
nsEditor::GetTagString(curNode, curNodeTag);
|
|
|
|
|
|
// is it already the right kind of block?
|
|
if (curNodeTag == *aBlockTag)
|
|
{
|
|
curBlock = 0; // forget any previous block used for previous inline nodes
|
|
continue; // do nothing to this block
|
|
}
|
|
|
|
// if curNode is a <pre> and we are converting to non-pre, we need
|
|
// to process the text inside the <pre> so as to convert returns
|
|
// to breaks, and runs of spaces to nbsps.
|
|
// xxx floppy moose
|
|
|
|
// if curNode is a mozdiv, p, header, address, or pre, replace
|
|
// it with a new block of correct type.
|
|
// xxx floppy moose: pre cant hold everything the others can
|
|
if (IsMozDiv(curNode) ||
|
|
(curNodeTag == "pre") ||
|
|
(curNodeTag == "p") ||
|
|
(curNodeTag == "h1") ||
|
|
(curNodeTag == "h2") ||
|
|
(curNodeTag == "h3") ||
|
|
(curNodeTag == "h4") ||
|
|
(curNodeTag == "h5") ||
|
|
(curNodeTag == "h6") ||
|
|
(curNodeTag == "address"))
|
|
{
|
|
curBlock = 0; // forget any previous block used for previous inline nodes
|
|
res = ReplaceContainer(curNode, &newBlock, *aBlockTag);
|
|
if (NS_FAILED(res)) return res;
|
|
}
|
|
else if ((curNodeTag == "table") ||
|
|
(curNodeTag == "tbody") ||
|
|
(curNodeTag == "tr") ||
|
|
(curNodeTag == "td") ||
|
|
(curNodeTag == "ol") ||
|
|
(curNodeTag == "ul") ||
|
|
(curNodeTag == "li") ||
|
|
(curNodeTag == "blockquote") ||
|
|
(curNodeTag == "div")) // div's other than mozdivs
|
|
{
|
|
curBlock = 0; // forget any previous block used for previous inline nodes
|
|
// recursion time
|
|
nsCOMPtr<nsISupportsArray> childArray;
|
|
res = GetChildNodesForOperation(curNode, &childArray);
|
|
if (NS_FAILED(res)) return res;
|
|
res = ApplyBlockStyle(childArray, aBlockTag);
|
|
if (NS_FAILED(res)) return res;
|
|
}
|
|
|
|
// if curNode is inline, pull it into curBlock
|
|
// note: it's assumed that consecutive inline nodes in the
|
|
// arrayOfNodes are actually members of the same block parent.
|
|
// this happens to be true now as a side effect of how
|
|
// arrayOfNodes is contructed, but some additional logic should
|
|
// be added here if that should change
|
|
|
|
else if (nsEditor::IsInlineNode(curNode))
|
|
{
|
|
// if curNode is a non editable, drop it if we are going to <pre>
|
|
if ((*aBlockTag == "pre") && (!mEditor->IsEditable(curNode)))
|
|
continue; // do nothing to this block
|
|
|
|
// if no curBlock, make one
|
|
if (!curBlock)
|
|
{
|
|
res = mEditor->CreateNode(*aBlockTag, curParent, offset, getter_AddRefs(curBlock));
|
|
if (NS_FAILED(res)) return res;
|
|
}
|
|
|
|
// if curNode is a Break, replace it with a return if we are going to <pre>
|
|
// xxx floppy moose
|
|
|
|
// this is a continuation of some inline nodes that belong together in
|
|
// the same block item. use curBlock
|
|
PRUint32 blockLen;
|
|
res = mEditor->GetLengthOfDOMNode(curBlock, blockLen);
|
|
if (NS_FAILED(res)) return res;
|
|
res = mEditor->DeleteNode(curNode);
|
|
if (NS_FAILED(res)) return res;
|
|
res = mEditor->InsertNode(curNode, curBlock, blockLen);
|
|
if (NS_FAILED(res)) return res;
|
|
}
|
|
}
|
|
return res;
|
|
}
|
|
|
|
|
|
nsresult
|
|
nsHTMLEditRules::IsFirstEditableChild( nsIDOMNode *aNode, PRBool *aOutIsFirst)
|
|
{
|
|
// check parms
|
|
if (!aOutIsFirst || !aNode) return NS_ERROR_NULL_POINTER;
|
|
|
|
// init out parms
|
|
*aOutIsFirst = PR_FALSE;
|
|
|
|
// find first editable child and compare it to aNode
|
|
nsCOMPtr<nsIDOMNode> parent, firstChild;
|
|
nsresult res = aNode->GetParentNode(getter_AddRefs(parent));
|
|
if (NS_FAILED(res)) return res;
|
|
if (!parent) return NS_ERROR_FAILURE;
|
|
res = GetFirstEditableChild(parent, &firstChild);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
*aOutIsFirst = (firstChild.get() == aNode);
|
|
return res;
|
|
}
|
|
|
|
|
|
nsresult
|
|
nsHTMLEditRules::IsLastEditableChild( nsIDOMNode *aNode, PRBool *aOutIsLast)
|
|
{
|
|
// check parms
|
|
if (!aOutIsLast || !aNode) return NS_ERROR_NULL_POINTER;
|
|
|
|
// init out parms
|
|
*aOutIsLast = PR_FALSE;
|
|
|
|
// find last editable child and compare it to aNode
|
|
nsCOMPtr<nsIDOMNode> parent, lastChild;
|
|
nsresult res = aNode->GetParentNode(getter_AddRefs(parent));
|
|
if (NS_FAILED(res)) return res;
|
|
if (!parent) return NS_ERROR_FAILURE;
|
|
res = GetLastEditableChild(parent, &lastChild);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
*aOutIsLast = (lastChild.get() == aNode);
|
|
return res;
|
|
}
|
|
|
|
|
|
nsresult
|
|
nsHTMLEditRules::GetFirstEditableChild( nsIDOMNode *aNode, nsCOMPtr<nsIDOMNode> *aOutFirstChild)
|
|
{
|
|
// check parms
|
|
if (!aOutFirstChild || !aNode) return NS_ERROR_NULL_POINTER;
|
|
|
|
// init out parms
|
|
*aOutFirstChild = nsnull;
|
|
|
|
// find first editable child
|
|
nsCOMPtr<nsIDOMNode> child;
|
|
nsresult res = aNode->GetFirstChild(getter_AddRefs(child));
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
while (child && !mEditor->IsEditable(child))
|
|
{
|
|
nsCOMPtr<nsIDOMNode> tmp;
|
|
res = child->GetNextSibling(getter_AddRefs(tmp));
|
|
if (NS_FAILED(res)) return res;
|
|
if (!tmp) return NS_ERROR_FAILURE;
|
|
child = tmp;
|
|
}
|
|
|
|
*aOutFirstChild = child;
|
|
return res;
|
|
}
|
|
|
|
|
|
nsresult
|
|
nsHTMLEditRules::GetLastEditableChild( nsIDOMNode *aNode, nsCOMPtr<nsIDOMNode> *aOutLastChild)
|
|
{
|
|
// check parms
|
|
if (!aOutLastChild || !aNode) return NS_ERROR_NULL_POINTER;
|
|
|
|
// init out parms
|
|
*aOutLastChild = nsnull;
|
|
|
|
// find last editable child
|
|
nsCOMPtr<nsIDOMNode> child;
|
|
nsresult res = aNode->GetLastChild(getter_AddRefs(child));
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
while (child && !mEditor->IsEditable(child))
|
|
{
|
|
nsCOMPtr<nsIDOMNode> tmp;
|
|
res = child->GetPreviousSibling(getter_AddRefs(tmp));
|
|
if (NS_FAILED(res)) return res;
|
|
if (!tmp) return NS_ERROR_FAILURE;
|
|
child = tmp;
|
|
}
|
|
|
|
*aOutLastChild = child;
|
|
return res;
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////
|
|
// JoinNodesSmart: join two nodes, doing whatever makes sense for their
|
|
// children (which often means joining them, too).
|
|
// aNodeLeft & aNodeRight must be same type of node.
|
|
nsresult
|
|
nsHTMLEditRules::JoinNodesSmart( nsIDOMNode *aNodeLeft,
|
|
nsIDOMNode *aNodeRight,
|
|
nsCOMPtr<nsIDOMNode> *aOutMergeParent,
|
|
PRInt32 *aOutMergeOffset)
|
|
{
|
|
// check parms
|
|
if (!aNodeLeft ||
|
|
!aNodeRight ||
|
|
!aOutMergeParent ||
|
|
!aOutMergeOffset)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
nsresult res = NS_OK;
|
|
// caller responsible for:
|
|
// left & right node are same type
|
|
PRInt32 parOffset;
|
|
nsCOMPtr<nsIDOMNode> parent, rightParent;
|
|
res = nsEditor::GetNodeLocation(aNodeLeft, &parent, &parOffset);
|
|
if (NS_FAILED(res)) return res;
|
|
aNodeRight->GetParentNode(getter_AddRefs(rightParent));
|
|
|
|
// if they don't have the same parent, first move the 'right' node
|
|
// to after the 'left' one
|
|
if (parent != rightParent)
|
|
{
|
|
res = mEditor->DeleteNode(aNodeRight);
|
|
if (NS_FAILED(res)) return res;
|
|
res = mEditor->InsertNode(aNodeRight, parent, parOffset);
|
|
if (NS_FAILED(res)) return res;
|
|
}
|
|
|
|
// defaults for outParams
|
|
*aOutMergeParent = aNodeRight;
|
|
res = mEditor->GetLengthOfDOMNode(aNodeLeft, *((PRUint32*)aOutMergeOffset));
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
// seperate join rules for differing blocks
|
|
if (IsParagraph(aNodeLeft))
|
|
{
|
|
// for para's, merge deep & add a <br> after merging
|
|
res = mEditor->JoinNodeDeep(aNodeLeft, aNodeRight, aOutMergeParent, aOutMergeOffset);
|
|
if (NS_FAILED(res)) return res;
|
|
// now we need to insert a br. unfortunately, we may have to split a text node to do it.
|
|
nsCOMPtr<nsIDOMCharacterData> nodeAsText = do_QueryInterface(*aOutMergeParent);
|
|
nsAutoString brType("br");
|
|
nsCOMPtr<nsIDOMNode> brNode;
|
|
if (nodeAsText)
|
|
{
|
|
// split the text node
|
|
nsCOMPtr<nsIDOMNode> tmp;
|
|
PRInt32 offset;
|
|
res = mEditor->SplitNode(*aOutMergeParent, *aOutMergeOffset, getter_AddRefs(tmp));
|
|
if (NS_FAILED(res)) return res;
|
|
res = nsEditor::GetNodeLocation(*aOutMergeParent, &tmp, &offset);
|
|
if (NS_FAILED(res)) return res;
|
|
res = mEditor->CreateNode(brType, tmp, offset, getter_AddRefs(brNode));
|
|
*aOutMergeOffset = 0; // selection at front of righthand text node
|
|
}
|
|
else
|
|
{
|
|
res = mEditor->CreateNode(brType, *aOutMergeParent, *aOutMergeOffset, getter_AddRefs(brNode));
|
|
(*aOutMergeOffset)++; // out offset _after_ <br>
|
|
}
|
|
return res;
|
|
}
|
|
else if (IsList(aNodeLeft) || mEditor->IsTextNode(aNodeLeft))
|
|
{
|
|
// for list's, merge shallow (wouldn't want to combine list items)
|
|
res = mEditor->JoinNodes(aNodeLeft, aNodeRight, parent);
|
|
if (NS_FAILED(res)) return res;
|
|
return res;
|
|
}
|
|
else
|
|
{
|
|
// remember the last left child, and firt right child
|
|
nsCOMPtr<nsIDOMNode> lastLeft, firstRight;
|
|
res = GetLastEditableChild(aNodeLeft, &lastLeft);
|
|
if (NS_FAILED(res)) return res;
|
|
res = GetFirstEditableChild(aNodeRight, &firstRight);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
// for list items, divs, etc, merge smart
|
|
res = mEditor->JoinNodes(aNodeLeft, aNodeRight, parent);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
if (lastLeft && firstRight && mEditor->NodesSameType(lastLeft, firstRight))
|
|
{
|
|
return JoinNodesSmart(lastLeft, firstRight, aOutMergeParent, aOutMergeOffset);
|
|
}
|
|
}
|
|
return res;
|
|
}
|
|
|
|
|
|
nsresult
|
|
nsHTMLEditRules::GetTopEnclosingMailCite(nsIDOMNode *aNode, nsCOMPtr<nsIDOMNode> *aOutCiteNode)
|
|
{
|
|
// check parms
|
|
if (!aNode || !aOutCiteNode)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
nsresult res = NS_OK;
|
|
nsCOMPtr<nsIDOMNode> node, parentNode;
|
|
node = do_QueryInterface(aNode);
|
|
|
|
while (node)
|
|
{
|
|
if (IsMailCite(node)) *aOutCiteNode = node;
|
|
if (IsBody(node)) break;
|
|
|
|
res = node->GetParentNode(getter_AddRefs(parentNode));
|
|
if (NS_FAILED(res)) return res;
|
|
node = parentNode;
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
|
|
nsresult
|
|
nsHTMLEditRules::CleanUpSelection(nsIDOMSelection *aSelection)
|
|
{
|
|
// check parms
|
|
if (!aSelection)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
// grab anything that can fit in the selection
|
|
nsCOMPtr<nsISupportsArray> arrayOfRanges;
|
|
nsresult res = GetPromotedRanges(aSelection, &arrayOfRanges, kDefault);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
// and walk it looking for empty nodes
|
|
PRUint32 rangeCount, nodeCount;
|
|
res = arrayOfRanges->Count(&rangeCount);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
PRInt32 i, j;
|
|
nsCOMPtr<nsIDOMRange> opRange;
|
|
nsCOMPtr<nsISupports> isupports;
|
|
nsCOMPtr<nsIContentIterator> iter;
|
|
|
|
for (i = 0; i < (PRInt32)rangeCount; i++)
|
|
{
|
|
isupports = (dont_AddRef)(arrayOfRanges->ElementAt(i));
|
|
opRange = do_QueryInterface(isupports);
|
|
nsCOMPtr<nsISupportsArray> arrayOfNodes;
|
|
res = NS_NewISupportsArray(getter_AddRefs(arrayOfNodes));
|
|
if (NS_FAILED(res)) return res;
|
|
res = nsComponentManager::CreateInstance(kContentIteratorCID,
|
|
nsnull,
|
|
nsIContentIterator::GetIID(),
|
|
getter_AddRefs(iter));
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
do
|
|
{
|
|
res = iter->Init(opRange);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
// gather up a list of empty nodes
|
|
while (NS_COMFALSE == iter->IsDone())
|
|
{
|
|
nsCOMPtr<nsIDOMNode> node;
|
|
nsCOMPtr<nsIContent> content;
|
|
res = iter->CurrentNode(getter_AddRefs(content));
|
|
if (NS_FAILED(res)) return res;
|
|
node = do_QueryInterface(content);
|
|
if (!node) return NS_ERROR_FAILURE;
|
|
|
|
PRBool bIsEmptyNode;
|
|
res = IsEmptyNode(node, &bIsEmptyNode);
|
|
if (NS_FAILED(res)) return res;
|
|
if (bIsEmptyNode && !IsBody(node))
|
|
{
|
|
isupports = do_QueryInterface(node);
|
|
arrayOfNodes->AppendElement(isupports);
|
|
}
|
|
res = iter->Next();
|
|
if (NS_FAILED(res)) return res;
|
|
}
|
|
|
|
// now delete the empty nodes
|
|
res = arrayOfNodes->Count(&nodeCount);
|
|
if (NS_FAILED(res)) return res;
|
|
for (j = 0; j < (PRInt32)nodeCount; j++)
|
|
{
|
|
isupports = (dont_AddRef)(arrayOfNodes->ElementAt(0));
|
|
nsCOMPtr<nsIDOMNode> delNode( do_QueryInterface(isupports ) );
|
|
arrayOfNodes->RemoveElementAt(0);
|
|
res = mEditor->DeleteNode(delNode);
|
|
if (NS_FAILED(res)) return res;
|
|
}
|
|
|
|
} while (nodeCount); // if we deleted any, loop again
|
|
// deleting some nodes may make some parents now empty
|
|
}
|
|
return res;
|
|
}
|
|
|
|
|
|
nsresult
|
|
nsHTMLEditRules::PopListItem(nsIDOMNode *aListItem, PRBool *aOutOfList)
|
|
{
|
|
// check parms
|
|
if (!aListItem || !aOutOfList)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
// init out params
|
|
*aOutOfList = PR_FALSE;
|
|
|
|
nsCOMPtr<nsIDOMNode> curParent;
|
|
nsCOMPtr<nsIDOMNode> curNode( do_QueryInterface(aListItem));
|
|
PRInt32 offset;
|
|
nsresult res = nsEditor::GetNodeLocation(curNode, &curParent, &offset);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
if (!IsListItem(curNode))
|
|
return NS_ERROR_FAILURE;
|
|
|
|
// if it's first or last list item, dont need to split the list
|
|
// otherwise we do.
|
|
nsCOMPtr<nsIDOMNode> curParPar;
|
|
PRInt32 parOffset;
|
|
res = nsEditor::GetNodeLocation(curParent, &curParPar, &parOffset);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
PRBool bIsFirstListItem;
|
|
res = IsFirstEditableChild(curNode, &bIsFirstListItem);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
PRBool bIsLastListItem;
|
|
res = IsLastEditableChild(curNode, &bIsLastListItem);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
if (!bIsFirstListItem && !bIsLastListItem)
|
|
{
|
|
// split the list
|
|
nsCOMPtr<nsIDOMNode> newBlock;
|
|
res = mEditor->SplitNode(curParent, offset, getter_AddRefs(newBlock));
|
|
if (NS_FAILED(res)) return res;
|
|
}
|
|
|
|
if (!bIsFirstListItem) parOffset++;
|
|
|
|
res = mEditor->DeleteNode(curNode);
|
|
if (NS_FAILED(res)) return res;
|
|
res = mEditor->InsertNode(curNode, curParPar, parOffset);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
// change list items container to mozdiv if we promoted them out of list
|
|
if (!IsList(curParPar) && IsListItem(curNode))
|
|
{
|
|
nsCOMPtr<nsIDOMNode> mozDiv;
|
|
res = ReplaceContainer(curNode, &mozDiv, "div");
|
|
if (NS_FAILED(res)) return res;
|
|
// give it special moz attr
|
|
nsCOMPtr<nsIDOMElement> mozDivElem = do_QueryInterface(mozDiv);
|
|
res = mEditor->SetAttribute(mozDivElem, "type", "_moz");
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
*aOutOfList = PR_TRUE;
|
|
if (NS_FAILED(res)) return res;
|
|
}
|
|
return res;
|
|
}
|
|
|