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/* -*- 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/. */
#ifndef ReplaceTextTransaction_h
#define ReplaceTextTransaction_h
#include "EditorBase.h"
#include "EditorDOMPoint.h"
#include "EditorForwards.h"
#include "EditTransactionBase.h"
#include "mozilla/Attributes.h"
#include "mozilla/RefPtr.h"
#include "mozilla/dom/Text.h"
#include "nsDebug.h"
#include "nsString.h"
namespace mozilla {
class ReplaceTextTransaction : public EditTransactionBase {
protected:
ReplaceTextTransaction(EditorBase& aEditorBase,
const nsAString& aStringToInsert, dom::Text& aTextNode,
uint32_t aStartOffset, uint32_t aLength)
: mEditorBase(&aEditorBase),
mStringToInsert(aStringToInsert),
mOffset(aStartOffset) {
if (aLength) {
IgnoredErrorResult ignoredError;
aTextNode.SubstringData(mOffset, aLength, mStringToBeReplaced,
ignoredError);
NS_WARNING_ASSERTION(
!ignoredError.Failed(),
"Failed to initialize ReplaceTextTransaction::mStringToBeReplaced, "
"but ignored");
}
}
virtual ~ReplaceTextTransaction() = default;
public:
static already_AddRefed<ReplaceTextTransaction> Create(
EditorBase& aEditorBase, const nsAString& aStringToInsert,
dom::Text& aTextNode, uint32_t aStartOffset, uint32_t aLength);
ReplaceTextTransaction() = delete;
ReplaceTextTransaction(const ReplaceTextTransaction&) = delete;
ReplaceTextTransaction& operator=(const ReplaceTextTransaction&) = delete;
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(ReplaceTextTransaction,
EditTransactionBase)
NS_DECL_EDITTRANSACTIONBASE
NS_DECL_EDITTRANSACTIONBASE_GETASMETHODS_OVERRIDE(ReplaceTextTransaction)
MOZ_CAN_RUN_SCRIPT NS_IMETHOD RedoTransaction() final;
dom::Text* GetTextNode() const;
template <typename EditorDOMPointType>
EditorDOMPointType SuggestPointToPutCaret() const {
dom::Text* const textNode = GetTextNode();
if (NS_WARN_IF(!textNode)) {
return EditorDOMPointType();
}
return EditorDOMPointType(textNode, mOffset + mStringToInsert.Length());
}
friend std::ostream& operator<<(std::ostream& aStream,
const ReplaceTextTransaction& aTransaction);
protected:
RefPtr<EditorBase> mEditorBase;
nsString mStringToInsert;
nsString mStringToBeReplaced;
uint32_t mOffset;
};
/**
* Private class for ReplaceTextTransaction when it needs to handle a
* transaction of `HTMLEditor`.
*/
class ReplaceTextInTextNodeTransaction final : public ReplaceTextTransaction {
public:
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(ReplaceTextInTextNodeTransaction,
ReplaceTextTransaction)
friend std::ostream& operator<<(
std::ostream& aStream,
const ReplaceTextInTextNodeTransaction& aTransaction);
private:
ReplaceTextInTextNodeTransaction(EditorBase& aEditorBase,
const nsAString& aStringToInsert,
dom::Text& aTextNode, uint32_t aStartOffset,
uint32_t aLength)
: ReplaceTextTransaction(aEditorBase, aStringToInsert, aTextNode,
aStartOffset, aLength),
mTextNode(&aTextNode) {
MOZ_ASSERT(aEditorBase.IsHTMLEditor());
}
virtual ~ReplaceTextInTextNodeTransaction() = default;
NS_DECL_EDITTRANSACTIONBASE_GETASMETHODS_OVERRIDE(
ReplaceTextInTextNodeTransaction)
RefPtr<dom::Text> mTextNode;
friend class ReplaceTextTransaction;
};
} // namespace mozilla
#endif // #ifndef ReplaceTextTransaction_
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