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First Checked In.
This commit is contained in:
jfrancis%netscape.com
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Коммит
a9e8aaa72b
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@ -0,0 +1,156 @@
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/* -*- 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 "PlaceholderTxn.h"
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#include "InsertTextTxn.h"
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#include "nsCOMPtr.h"
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#include "nsIDOMNode.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 "nsIContent.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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static NS_DEFINE_IID(kPlaceholderTxnIID, PLACEHOLDER_TXN_IID);
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nsHTMLEditRules::nsHTMLEditRules()
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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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NS_IMETHODIMP
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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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return WillInsert(aSelection, aCancel);
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}
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// XXX: this code is all experimental, and has no effect on the content model yet
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// the point here is to collapse adjacent BR's into P's
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NS_IMETHODIMP
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nsHTMLEditRules::DidInsertBreak(nsIDOMSelection *aSelection, nsresult aResult)
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{
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nsresult result = aResult; // if aResult is an error, we return it.
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if (!aSelection) { return NS_ERROR_NULL_POINTER; }
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PRBool isCollapsed;
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aSelection->IsCollapsed(&isCollapsed);
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NS_ASSERTION(PR_TRUE==isCollapsed, "selection not collapsed after insert break.");
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// if the insert break resulted in consecutive BR tags,
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// collapse the two BR tags into a single P
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if (NS_SUCCEEDED(result))
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{
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nsCOMPtr<nsIEnumerator> enumerator;
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enumerator = do_QueryInterface(aSelection,&result);
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if (enumerator)
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{
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enumerator->First();
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nsISupports *currentItem;
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result = enumerator->CurrentItem(¤tItem);
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if ((NS_SUCCEEDED(result)) && currentItem)
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{
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result = NS_ERROR_UNEXPECTED;
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nsCOMPtr<nsIDOMRange> range( do_QueryInterface(currentItem) );
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if (range)
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{
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nsIAtom *brTag = NS_NewAtom("BR");
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nsCOMPtr<nsIDOMNode> startNode;
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result = range->GetStartParent(getter_AddRefs(startNode));
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if ((NS_SUCCEEDED(result)) && startNode)
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{
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PRInt32 offset;
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range->GetStartOffset(&offset);
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nsCOMPtr<nsIDOMNodeList>startNodeChildren;
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result = startNode->GetChildNodes(getter_AddRefs(startNodeChildren));
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if ((NS_SUCCEEDED(result)) && startNodeChildren)
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{
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nsCOMPtr<nsIDOMNode> selectedNode;
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result = startNodeChildren->Item(offset, getter_AddRefs(selectedNode));
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if ((NS_SUCCEEDED(result)) && selectedNode)
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{
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nsCOMPtr<nsIDOMNode> prevNode;
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result = selectedNode->GetPreviousSibling(getter_AddRefs(prevNode));
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if ((NS_SUCCEEDED(result)) && prevNode)
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{
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if (PR_TRUE==NodeIsType(prevNode, brTag))
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{ // the previous node is a BR, check it's siblings
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nsCOMPtr<nsIDOMNode> leftNode;
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result = prevNode->GetPreviousSibling(getter_AddRefs(leftNode));
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if ((NS_SUCCEEDED(result)) && leftNode)
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{
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if (PR_TRUE==NodeIsType(leftNode, brTag))
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{ // left sibling is also a BR, collapse
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printf("1\n");
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}
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else
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{
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if (PR_TRUE==NodeIsType(selectedNode, brTag))
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{ // right sibling is also a BR, collapse
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printf("2\n");
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}
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}
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}
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}
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}
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// now check the next node from selectedNode
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nsCOMPtr<nsIDOMNode> nextNode;
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result = selectedNode->GetNextSibling(getter_AddRefs(nextNode));
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if ((NS_SUCCEEDED(result)) && nextNode)
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{
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if (PR_TRUE==NodeIsType(nextNode, brTag))
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{ // the previous node is a BR, check it's siblings
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nsCOMPtr<nsIDOMNode> rightNode;
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result = nextNode->GetNextSibling(getter_AddRefs(rightNode));
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if ((NS_SUCCEEDED(result)) && rightNode)
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{
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if (PR_TRUE==NodeIsType(rightNode, brTag))
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{ // right sibling is also a BR, collapse
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printf("3\n");
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}
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else
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{
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if (PR_TRUE==NodeIsType(selectedNode, brTag))
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{ // left sibling is also a BR, collapse
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printf("4\n");
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}
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}
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}
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}
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}
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}
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}
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}
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NS_RELEASE(brTag);
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}
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}
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}
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}
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return result;
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}
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@ -0,0 +1,37 @@
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/* -*- 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
|
||||
* Version 1.0 (the "NPL"); you may not use this file except in
|
||||
* compliance with the NPL. You may obtain a copy of the NPL at
|
||||
* http://www.mozilla.org/NPL/
|
||||
*
|
||||
* Software distributed under the NPL is distributed on an "AS IS" basis,
|
||||
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
|
||||
* for the specific language governing rights and limitations under the
|
||||
* NPL.
|
||||
*
|
||||
* The Initial Developer of this code under the NPL is Netscape
|
||||
* Communications Corporation. Portions created by Netscape are
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||||
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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||||
* Reserved.
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||||
*/
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#ifndef nsHTMLEditRules_h__
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#define nsHTMLEditRules_h__
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#include "nsTextEditRules.h"
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class nsHTMLEditRules : public nsTextEditRules
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{
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public:
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nsHTMLEditRules();
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virtual ~nsHTMLEditRules();
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NS_IMETHOD WillInsertBreak(nsIDOMSelection *aSelection, PRBool *aCancel);
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NS_IMETHOD DidInsertBreak(nsIDOMSelection *aSelection, nsresult aResult);
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};
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#endif //nsHTMLEditRules_h__
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@ -0,0 +1,156 @@
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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||||
*
|
||||
* The contents of this file are subject to the Netscape Public License
|
||||
* Version 1.0 (the "NPL") you may not use this file except in
|
||||
* compliance with the NPL. You may obtain a copy of the NPL at
|
||||
* http://www.mozilla.org/NPL/
|
||||
*
|
||||
* Software distributed under the NPL is distributed on an "AS IS" basis,
|
||||
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
|
||||
* for the specific language governing rights and limitations under the
|
||||
* NPL.
|
||||
*
|
||||
* The Initial Developer of this code under the NPL is Netscape
|
||||
* Communications Corporation. Portions created by Netscape are
|
||||
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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||||
* Reserved.
|
||||
*/
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#include "nsHTMLEditRules.h"
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#include "nsEditor.h"
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#include "PlaceholderTxn.h"
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#include "InsertTextTxn.h"
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#include "nsCOMPtr.h"
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#include "nsIDOMNode.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 "nsIContent.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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static NS_DEFINE_IID(kPlaceholderTxnIID, PLACEHOLDER_TXN_IID);
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nsHTMLEditRules::nsHTMLEditRules()
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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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NS_IMETHODIMP
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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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return WillInsert(aSelection, aCancel);
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}
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// XXX: this code is all experimental, and has no effect on the content model yet
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// the point here is to collapse adjacent BR's into P's
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NS_IMETHODIMP
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nsHTMLEditRules::DidInsertBreak(nsIDOMSelection *aSelection, nsresult aResult)
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{
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nsresult result = aResult; // if aResult is an error, we return it.
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if (!aSelection) { return NS_ERROR_NULL_POINTER; }
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PRBool isCollapsed;
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aSelection->IsCollapsed(&isCollapsed);
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NS_ASSERTION(PR_TRUE==isCollapsed, "selection not collapsed after insert break.");
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// if the insert break resulted in consecutive BR tags,
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// collapse the two BR tags into a single P
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if (NS_SUCCEEDED(result))
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{
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nsCOMPtr<nsIEnumerator> enumerator;
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enumerator = do_QueryInterface(aSelection,&result);
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if (enumerator)
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{
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enumerator->First();
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nsISupports *currentItem;
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result = enumerator->CurrentItem(¤tItem);
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if ((NS_SUCCEEDED(result)) && currentItem)
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{
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result = NS_ERROR_UNEXPECTED;
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nsCOMPtr<nsIDOMRange> range( do_QueryInterface(currentItem) );
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if (range)
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{
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nsIAtom *brTag = NS_NewAtom("BR");
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nsCOMPtr<nsIDOMNode> startNode;
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result = range->GetStartParent(getter_AddRefs(startNode));
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if ((NS_SUCCEEDED(result)) && startNode)
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{
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PRInt32 offset;
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range->GetStartOffset(&offset);
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nsCOMPtr<nsIDOMNodeList>startNodeChildren;
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result = startNode->GetChildNodes(getter_AddRefs(startNodeChildren));
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if ((NS_SUCCEEDED(result)) && startNodeChildren)
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{
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nsCOMPtr<nsIDOMNode> selectedNode;
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result = startNodeChildren->Item(offset, getter_AddRefs(selectedNode));
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if ((NS_SUCCEEDED(result)) && selectedNode)
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{
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nsCOMPtr<nsIDOMNode> prevNode;
|
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result = selectedNode->GetPreviousSibling(getter_AddRefs(prevNode));
|
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if ((NS_SUCCEEDED(result)) && prevNode)
|
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{
|
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if (PR_TRUE==NodeIsType(prevNode, brTag))
|
||||
{ // the previous node is a BR, check it's siblings
|
||||
nsCOMPtr<nsIDOMNode> leftNode;
|
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result = prevNode->GetPreviousSibling(getter_AddRefs(leftNode));
|
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if ((NS_SUCCEEDED(result)) && leftNode)
|
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{
|
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if (PR_TRUE==NodeIsType(leftNode, brTag))
|
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{ // left sibling is also a BR, collapse
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printf("1\n");
|
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}
|
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else
|
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{
|
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if (PR_TRUE==NodeIsType(selectedNode, brTag))
|
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{ // right sibling is also a BR, collapse
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printf("2\n");
|
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}
|
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}
|
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}
|
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}
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}
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// now check the next node from selectedNode
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nsCOMPtr<nsIDOMNode> nextNode;
|
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result = selectedNode->GetNextSibling(getter_AddRefs(nextNode));
|
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if ((NS_SUCCEEDED(result)) && nextNode)
|
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{
|
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if (PR_TRUE==NodeIsType(nextNode, brTag))
|
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{ // the previous node is a BR, check it's siblings
|
||||
nsCOMPtr<nsIDOMNode> rightNode;
|
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result = nextNode->GetNextSibling(getter_AddRefs(rightNode));
|
||||
if ((NS_SUCCEEDED(result)) && rightNode)
|
||||
{
|
||||
if (PR_TRUE==NodeIsType(rightNode, brTag))
|
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{ // right sibling is also a BR, collapse
|
||||
printf("3\n");
|
||||
}
|
||||
else
|
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{
|
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if (PR_TRUE==NodeIsType(selectedNode, brTag))
|
||||
{ // left sibling is also a BR, collapse
|
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printf("4\n");
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
NS_RELEASE(brTag);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
return result;
|
||||
}
|
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@ -0,0 +1,37 @@
|
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
||||
*
|
||||
* The contents of this file are subject to the Netscape Public License
|
||||
* Version 1.0 (the "NPL"); you may not use this file except in
|
||||
* compliance with the NPL. You may obtain a copy of the NPL at
|
||||
* http://www.mozilla.org/NPL/
|
||||
*
|
||||
* Software distributed under the NPL is distributed on an "AS IS" basis,
|
||||
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
|
||||
* for the specific language governing rights and limitations under the
|
||||
* NPL.
|
||||
*
|
||||
* The Initial Developer of this code under the NPL is Netscape
|
||||
* Communications Corporation. Portions created by Netscape are
|
||||
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
|
||||
* Reserved.
|
||||
*/
|
||||
|
||||
#ifndef nsHTMLEditRules_h__
|
||||
#define nsHTMLEditRules_h__
|
||||
|
||||
#include "nsTextEditRules.h"
|
||||
|
||||
class nsHTMLEditRules : public nsTextEditRules
|
||||
{
|
||||
public:
|
||||
|
||||
nsHTMLEditRules();
|
||||
virtual ~nsHTMLEditRules();
|
||||
|
||||
NS_IMETHOD WillInsertBreak(nsIDOMSelection *aSelection, PRBool *aCancel);
|
||||
NS_IMETHOD DidInsertBreak(nsIDOMSelection *aSelection, nsresult aResult);
|
||||
|
||||
};
|
||||
|
||||
#endif //nsHTMLEditRules_h__
|
||||
|
||||
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