mirror of
https://github.com/mozilla/gecko-dev.git
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146 lines
4.3 KiB
C++
146 lines
4.3 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
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*/
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#include "nsTextEditUtils.h"
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#include "nsEditor.h"
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#include "nsPlaintextEditor.h"
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#include "nsString.h"
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/********************************************************
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* helper methods from nsTextEditRules
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********************************************************/
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PRBool
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nsTextEditUtils::NodeIsType(nsIDOMNode *aNode, const nsAReadableString& aTag)
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{
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NS_PRECONDITION(aNode, "null node passed to nsHTMLEditUtils::NodeIsType");
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if (aNode)
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{
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nsAutoString tag;
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nsEditor::GetTagString(aNode,tag);
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tag.ToLowerCase();
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if (tag.Equals(aTag))
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return PR_TRUE;
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}
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return PR_FALSE;
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}
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/********************************************************
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* helper methods from nsTextEditRules
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********************************************************/
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///////////////////////////////////////////////////////////////////////////
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// IsBody: true if node an html body node
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//
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PRBool
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nsTextEditUtils::IsBody(nsIDOMNode *node)
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{
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return NodeIsType(node, NS_LITERAL_STRING("body"));
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}
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///////////////////////////////////////////////////////////////////////////
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// IsBreak: true if node an html break node
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//
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PRBool
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nsTextEditUtils::IsBreak(nsIDOMNode *node)
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{
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return NodeIsType(node, NS_LITERAL_STRING("br"));
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}
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///////////////////////////////////////////////////////////////////////////
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// IsMozBR: true if node an html br node with type = _moz
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//
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PRBool
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nsTextEditUtils::IsMozBR(nsIDOMNode *node)
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{
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NS_PRECONDITION(node, "null node passed to nsHTMLEditUtils::IsMozBR");
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if (IsBreak(node) && HasMozAttr(node)) return PR_TRUE;
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return PR_FALSE;
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}
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///////////////////////////////////////////////////////////////////////////
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// HasMozAttr: true if node has type attribute = _moz
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// (used to indicate the div's and br's we use in
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// mail compose rules)
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//
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PRBool
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nsTextEditUtils::HasMozAttr(nsIDOMNode *node)
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{
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NS_PRECONDITION(node, "null parent passed to nsHTMLEditUtils::HasMozAttr");
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nsCOMPtr<nsIDOMElement> elem = do_QueryInterface(node);
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if (elem)
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{
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nsAutoString typeAttrName; typeAttrName.AssignWithConversion("type");
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nsAutoString typeAttrVal;
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nsresult res = elem->GetAttribute(typeAttrName, typeAttrVal);
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typeAttrVal.ToLowerCase();
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if (NS_SUCCEEDED(res) && (typeAttrVal.EqualsWithConversion("_moz")))
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return PR_TRUE;
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}
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return PR_FALSE;
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}
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///////////////////////////////////////////////////////////////////////////
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// InBody: true if node is a descendant of the body
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//
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PRBool
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nsTextEditUtils::InBody(nsIDOMNode *node, nsIEditor *editor)
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{
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if ( node )
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{
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nsCOMPtr<nsIDOMElement> bodyElement;
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nsresult res = editor->GetRootElement(getter_AddRefs(bodyElement));
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if (NS_FAILED(res) || !bodyElement)
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return res?res:NS_ERROR_NULL_POINTER;
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nsCOMPtr<nsIDOMNode> bodyNode = do_QueryInterface(bodyElement);
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nsCOMPtr<nsIDOMNode> tmp;
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nsCOMPtr<nsIDOMNode> p = node;
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while (p && p!= bodyNode)
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{
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if (NS_FAILED(p->GetParentNode(getter_AddRefs(tmp))) || !tmp)
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return PR_FALSE;
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p = tmp;
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}
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}
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return PR_TRUE;
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}
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///////////////////////////////////////////////////////////////////////////
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// nsAutoEditInitRulesTrigger methods
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//
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nsAutoEditInitRulesTrigger::nsAutoEditInitRulesTrigger( nsPlaintextEditor *aEd, nsresult &aRes) : mEd(aEd), mRes(aRes)
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{
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if (mEd) mEd->BeginEditorInit();
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}
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nsAutoEditInitRulesTrigger::~nsAutoEditInitRulesTrigger()
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{
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if (mEd) mRes = mEd->EndEditorInit();
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}
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