gecko-dev/editor/libeditor/nsTextEditUtils.cpp

106 lines
2.9 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsTextEditUtils.h"
#include "mozilla/Assertions.h"
#include "mozilla/dom/Element.h"
#include "nsAString.h"
#include "nsCOMPtr.h"
#include "nsCaseTreatment.h"
#include "nsDebug.h"
#include "nsEditor.h"
#include "nsError.h"
#include "nsGkAtoms.h"
#include "nsIDOMElement.h"
#include "nsIDOMNode.h"
#include "nsNameSpaceManager.h"
#include "nsLiteralString.h"
#include "nsPlaintextEditor.h"
#include "nsString.h"
using namespace mozilla;
///////////////////////////////////////////////////////////////////////////
// IsBody: true if node an html body node
bool
nsTextEditUtils::IsBody(nsIDOMNode *node)
{
return nsEditor::NodeIsType(node, nsGkAtoms::body);
}
///////////////////////////////////////////////////////////////////////////
// IsBreak: true if node an html break node
bool
nsTextEditUtils::IsBreak(nsIDOMNode *node)
{
return nsEditor::NodeIsType(node, nsGkAtoms::br);
}
bool
nsTextEditUtils::IsBreak(nsINode* aNode)
{
MOZ_ASSERT(aNode);
return aNode->IsHTMLElement(nsGkAtoms::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");
return IsBreak(node) && HasMozAttr(node);
}
bool
nsTextEditUtils::IsMozBR(nsINode* aNode)
{
MOZ_ASSERT(aNode);
return aNode->IsHTMLElement(nsGkAtoms::br) &&
aNode->AsElement()->AttrValueIs(kNameSpaceID_None, nsGkAtoms::type,
NS_LITERAL_STRING("_moz"),
eIgnoreCase);
}
///////////////////////////////////////////////////////////////////////////
// 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();
}