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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /editor/libeditor/ReplaceTextTransaction.h | |
parent | Initial commit. (diff) | |
download | firefox-esr-upstream.tar.xz firefox-esr-upstream.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | editor/libeditor/ReplaceTextTransaction.h | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/editor/libeditor/ReplaceTextTransaction.h b/editor/libeditor/ReplaceTextTransaction.h new file mode 100644 index 0000000000..f7bfba5dbe --- /dev/null +++ b/editor/libeditor/ReplaceTextTransaction.h @@ -0,0 +1,95 @@ +/* -*- 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/Maybe.h" +#include "mozilla/RefPtr.h" +#include "mozilla/dom/Text.h" +#include "nsDebug.h" +#include "nsString.h" + +namespace mozilla { + +class ReplaceTextTransaction final : public EditTransactionBase { + private: + ReplaceTextTransaction(EditorBase& aEditorBase, + const nsAString& aStringToInsert, dom::Text& aTextNode, + uint32_t aStartOffset, uint32_t aLength) + : mEditorBase(&aEditorBase), + mTextNode(&aTextNode), + mStringToInsert(aStringToInsert), + mOffset(aStartOffset) { + if (aLength) { + IgnoredErrorResult ignoredError; + mTextNode->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) { + MOZ_ASSERT(aLength > 0, "Use InsertTextTransaction instead"); + MOZ_ASSERT(!aStringToInsert.IsEmpty(), "Use DeleteTextTransaction instead"); + MOZ_ASSERT(aTextNode.Length() >= aStartOffset); + MOZ_ASSERT(aTextNode.Length() >= aStartOffset + aLength); + + RefPtr<ReplaceTextTransaction> transaction = new ReplaceTextTransaction( + aEditorBase, aStringToInsert, aTextNode, aStartOffset, aLength); + return transaction.forget(); + } + + 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; + + template <typename EditorDOMPointType> + EditorDOMPointType SuggestPointToPutCaret() const { + if (NS_WARN_IF(!mTextNode)) { + return EditorDOMPointType(); + } + return EditorDOMPointType(mTextNode, mOffset + mStringToInsert.Length()); + } + + friend std::ostream& operator<<(std::ostream& aStream, + const ReplaceTextTransaction& aTransaction); + + private: + RefPtr<EditorBase> mEditorBase; + RefPtr<dom::Text> mTextNode; + + nsString mStringToInsert; + nsString mStringToBeReplaced; + + uint32_t mOffset; +}; + +} // namespace mozilla + +#endif // #ifndef ReplaceTextTransaction_ |