editor/libeditor/text/nsTextEditUtils.cpp
author David Anderson <danderson@mozilla.com>
Mon, 17 Oct 2011 11:52:12 -0700
changeset 105280 f93960a93ad97a56d308bd9ce25d97cbc175d524
parent 105242 8cfeba5239a9e4f20c462d6fb20421b4e4e7c735
parent 78841 ec7577dec4fceef0ac2717416d9c48289402d935
child 105565 91c7d8b9c9e96bed8c5f867ccd98fed385638c48
permissions -rw-r--r--
Merge from mozilla-central.

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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#include "nsTextEditUtils.h"

#include "nsEditor.h"
#include "nsPlaintextEditor.h"
#include "nsEditProperty.h"

///////////////////////////////////////////////////////////////////////////
// IsBody: true if node an html body node
//                  
// Would use NodeIsType and the corresponding atom, but
// the atom list isn't generationed in a plaintext-only
// configured build.
bool 
nsTextEditUtils::IsBody(nsIDOMNode *node)
{
  return nsEditor::NodeIsTypeString(node, NS_LITERAL_STRING("body"));
}


///////////////////////////////////////////////////////////////////////////
// IsBreak: true if node an html break node
//                  
// See previous comment regarding NodeisType
bool 
nsTextEditUtils::IsBreak(nsIDOMNode *node)
{
  return nsEditor::NodeIsTypeString(node, NS_LITERAL_STRING("br"));
}


///////////////////////////////////////////////////////////////////////////
// IsMozBR: true if node an html br node with type = _moz
//                  
bool 
nsTextEditUtils::IsMozBR(nsIDOMNode *node)
{
  NS_PRECONDITION(node, "null node passed to nsHTMLEditUtils::IsMozBR");
  if (IsBreak(node) && HasMozAttr(node)) return true;
  return false;
}


///////////////////////////////////////////////////////////////////////////
// HasMozAttr: true if node has type attribute = _moz
//             (used to indicate the div's and br's we use in
//              mail compose rules)
//                  
bool 
nsTextEditUtils::HasMozAttr(nsIDOMNode *node)
{
  NS_PRECONDITION(node, "null parent passed to nsHTMLEditUtils::HasMozAttr");
  nsCOMPtr<nsIDOMElement> elem = do_QueryInterface(node);
  if (elem)
  {
    nsAutoString typeAttrVal;
    nsresult res = elem->GetAttribute(NS_LITERAL_STRING("type"), typeAttrVal);
    if (NS_SUCCEEDED(res) && (typeAttrVal.LowerCaseEqualsLiteral("_moz")))
      return true;
  }
  return false;
}


///////////////////////////////////////////////////////////////////////////
// nsAutoEditInitRulesTrigger methods
//
nsAutoEditInitRulesTrigger::nsAutoEditInitRulesTrigger( nsPlaintextEditor *aEd, nsresult &aRes) : mEd(aEd), mRes(aRes)
{
    if (mEd) mEd->BeginEditorInit();
}

nsAutoEditInitRulesTrigger::~nsAutoEditInitRulesTrigger()
{
    if (mEd) mRes = mEd->EndEditorInit();
}