gecko-dev/editor/libeditor/TextEditUtils.cpp

114 строки
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 "TextEditUtils.h"
#include "mozilla/Assertions.h"
#include "mozilla/TextEditor.h"
#include "mozilla/dom/Element.h"
#include "nsAString.h"
#include "nsCOMPtr.h"
#include "nsCaseTreatment.h"
#include "nsDebug.h"
#include "nsError.h"
#include "nsGkAtoms.h"
#include "nsIDOMElement.h"
#include "nsIDOMNode.h"
#include "nsNameSpaceManager.h"
#include "nsLiteralString.h"
#include "nsString.h"
namespace mozilla {
/******************************************************************************
* TextEditUtils
******************************************************************************/
/**
* IsBody() returns true if aNode is an html body node.
*/
bool
TextEditUtils::IsBody(nsIDOMNode* aNode)
{
return EditorBase::NodeIsType(aNode, nsGkAtoms::body);
}
/**
* IsBreak() returns true if aNode is an html break node.
*/
bool
TextEditUtils::IsBreak(nsIDOMNode* aNode)
{
return EditorBase::NodeIsType(aNode, nsGkAtoms::br);
}
bool
TextEditUtils::IsBreak(nsINode* aNode)
{
MOZ_ASSERT(aNode);
return aNode->IsHTMLElement(nsGkAtoms::br);
}
/**
* IsMozBR() returns true if aNode is an html br node with |type = _moz|.
*/
bool
TextEditUtils::IsMozBR(nsIDOMNode* aNode)
{
MOZ_ASSERT(aNode);
return IsBreak(aNode) && HasMozAttr(aNode);
}
bool
TextEditUtils::IsMozBR(nsINode* aNode)
{
MOZ_ASSERT(aNode);
return aNode->IsHTMLElement(nsGkAtoms::br) &&
aNode->AsElement()->AttrValueIs(kNameSpaceID_None, nsGkAtoms::type,
NS_LITERAL_STRING("_moz"),
eIgnoreCase);
}
/**
* HasMozAttr() returns true if aNode has type attribute and its value is
* |_moz|. (Used to indicate div's and br's we use in mail compose rules)
*/
bool
TextEditUtils::HasMozAttr(nsIDOMNode* aNode)
{
MOZ_ASSERT(aNode);
nsCOMPtr<nsIDOMElement> element = do_QueryInterface(aNode);
if (!element) {
return false;
}
nsAutoString typeAttrVal;
nsresult rv = element->GetAttribute(NS_LITERAL_STRING("type"), typeAttrVal);
return NS_SUCCEEDED(rv) && typeAttrVal.LowerCaseEqualsLiteral("_moz");
}
/******************************************************************************
* AutoEditInitRulesTrigger
******************************************************************************/
AutoEditInitRulesTrigger::AutoEditInitRulesTrigger(TextEditor* aTextEditor,
nsresult& aResult)
: mTextEditor(aTextEditor)
, mResult(aResult)
{
if (mTextEditor) {
mTextEditor->BeginEditorInit();
}
}
AutoEditInitRulesTrigger::~AutoEditInitRulesTrigger()
{
if (mTextEditor) {
mResult = mTextEditor->EndEditorInit();
}
}
} // namespace mozilla