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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /editor/libeditor/InsertNodeTransaction.cpp
parentInitial commit. (diff)
downloadfirefox-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/InsertNodeTransaction.cpp184
1 files changed, 184 insertions, 0 deletions
diff --git a/editor/libeditor/InsertNodeTransaction.cpp b/editor/libeditor/InsertNodeTransaction.cpp
new file mode 100644
index 0000000000..50e6b32653
--- /dev/null
+++ b/editor/libeditor/InsertNodeTransaction.cpp
@@ -0,0 +1,184 @@
+/* -*- 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 "InsertNodeTransaction.h"
+
+#include "EditorBase.h" // for EditorBase
+#include "EditorDOMPoint.h" // for EditorDOMPoint
+#include "HTMLEditor.h" // for HTMLEditor
+#include "TextEditor.h" // for TextEditor
+
+#include "mozilla/Logging.h"
+#include "mozilla/ToString.h"
+
+#include "nsAString.h"
+#include "nsDebug.h" // for NS_WARNING, etc.
+#include "nsError.h" // for NS_ERROR_NULL_POINTER, etc.
+#include "nsIContent.h" // for nsIContent
+#include "nsReadableUtils.h" // for ToNewCString
+#include "nsString.h" // for nsString
+
+namespace mozilla {
+
+using namespace dom;
+
+template already_AddRefed<InsertNodeTransaction> InsertNodeTransaction::Create(
+ EditorBase& aEditorBase, nsIContent& aContentToInsert,
+ const EditorDOMPoint& aPointToInsert);
+template already_AddRefed<InsertNodeTransaction> InsertNodeTransaction::Create(
+ EditorBase& aEditorBase, nsIContent& aContentToInsert,
+ const EditorRawDOMPoint& aPointToInsert);
+
+// static
+template <typename PT, typename CT>
+already_AddRefed<InsertNodeTransaction> InsertNodeTransaction::Create(
+ EditorBase& aEditorBase, nsIContent& aContentToInsert,
+ const EditorDOMPointBase<PT, CT>& aPointToInsert) {
+ RefPtr<InsertNodeTransaction> transaction =
+ new InsertNodeTransaction(aEditorBase, aContentToInsert, aPointToInsert);
+ return transaction.forget();
+}
+
+template <typename PT, typename CT>
+InsertNodeTransaction::InsertNodeTransaction(
+ EditorBase& aEditorBase, nsIContent& aContentToInsert,
+ const EditorDOMPointBase<PT, CT>& aPointToInsert)
+ : mContentToInsert(&aContentToInsert),
+ mPointToInsert(aPointToInsert.template To<EditorDOMPoint>()),
+ mEditorBase(&aEditorBase) {
+ MOZ_ASSERT(mPointToInsert.IsSetAndValid());
+ // Ensure mPointToInsert stores child at offset.
+ Unused << mPointToInsert.GetChild();
+}
+
+std::ostream& operator<<(std::ostream& aStream,
+ const InsertNodeTransaction& aTransaction) {
+ aStream << "{ mContentToInsert=" << aTransaction.mContentToInsert.get();
+ if (aTransaction.mContentToInsert) {
+ if (aTransaction.mContentToInsert->IsText()) {
+ nsAutoString data;
+ aTransaction.mContentToInsert->AsText()->GetData(data);
+ aStream << " (#text \"" << NS_ConvertUTF16toUTF8(data).get() << "\")";
+ } else {
+ aStream << " (" << *aTransaction.mContentToInsert << ")";
+ }
+ }
+ aStream << ", mPointToInsert=" << aTransaction.mPointToInsert
+ << ", mEditorBase=" << aTransaction.mEditorBase.get() << " }";
+ return aStream;
+}
+
+NS_IMPL_CYCLE_COLLECTION_INHERITED(InsertNodeTransaction, EditTransactionBase,
+ mEditorBase, mContentToInsert,
+ mPointToInsert)
+
+NS_IMPL_ADDREF_INHERITED(InsertNodeTransaction, EditTransactionBase)
+NS_IMPL_RELEASE_INHERITED(InsertNodeTransaction, EditTransactionBase)
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(InsertNodeTransaction)
+NS_INTERFACE_MAP_END_INHERITING(EditTransactionBase)
+
+NS_IMETHODIMP InsertNodeTransaction::DoTransaction() {
+ MOZ_LOG(GetLogModule(), LogLevel::Info,
+ ("%p InsertNodeTransaction::%s this=%s", this, __FUNCTION__,
+ ToString(*this).c_str()));
+
+ if (NS_WARN_IF(!mEditorBase) || NS_WARN_IF(!mContentToInsert) ||
+ NS_WARN_IF(!mPointToInsert.IsSet())) {
+ return NS_ERROR_NOT_AVAILABLE;
+ }
+
+ MOZ_ASSERT_IF(mEditorBase->IsTextEditor(), !mContentToInsert->IsText());
+
+ if (!mPointToInsert.IsSetAndValid()) {
+ // It seems that DOM tree has been changed after first DoTransaction()
+ // and current RedoTranaction() call.
+ if (mPointToInsert.GetChild()) {
+ EditorDOMPoint newPointToInsert(mPointToInsert.GetChild());
+ if (!newPointToInsert.IsSet()) {
+ // The insertion point has been removed from the DOM tree.
+ // In this case, we should append the node to the container instead.
+ newPointToInsert.SetToEndOf(mPointToInsert.GetContainer());
+ if (NS_WARN_IF(!newPointToInsert.IsSet())) {
+ return NS_ERROR_FAILURE;
+ }
+ }
+ mPointToInsert = newPointToInsert;
+ } else {
+ mPointToInsert.SetToEndOf(mPointToInsert.GetContainer());
+ if (NS_WARN_IF(!mPointToInsert.IsSet())) {
+ return NS_ERROR_FAILURE;
+ }
+ }
+ }
+
+ OwningNonNull<EditorBase> editorBase = *mEditorBase;
+ OwningNonNull<nsIContent> contentToInsert = *mContentToInsert;
+ OwningNonNull<nsINode> container = *mPointToInsert.GetContainer();
+ nsCOMPtr<nsIContent> refChild = mPointToInsert.GetChild();
+ if (contentToInsert->IsElement()) {
+ nsresult rv = editorBase->MarkElementDirty(
+ MOZ_KnownLive(*contentToInsert->AsElement()));
+ if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
+ return EditorBase::ToGenericNSResult(rv);
+ }
+ NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
+ "EditorBase::MarkElementDirty() failed, but ignored");
+ }
+
+ IgnoredErrorResult error;
+ container->InsertBefore(contentToInsert, refChild, error);
+ // InsertBefore() may call MightThrowJSException() even if there is no
+ // error. We don't need the flag here.
+ error.WouldReportJSException();
+ if (error.Failed()) {
+ NS_WARNING("nsINode::InsertBefore() failed");
+ return error.StealNSResult();
+ }
+
+ return NS_OK;
+}
+
+NS_IMETHODIMP InsertNodeTransaction::UndoTransaction() {
+ MOZ_LOG(GetLogModule(), LogLevel::Info,
+ ("%p InsertNodeTransaction::%s this=%s", this, __FUNCTION__,
+ ToString(*this).c_str()));
+
+ if (NS_WARN_IF(!mEditorBase) || NS_WARN_IF(!mContentToInsert) ||
+ NS_WARN_IF(!mPointToInsert.IsSet())) {
+ return NS_ERROR_NOT_INITIALIZED;
+ }
+ // XXX If the inserted node has been moved to different container node or
+ // just removed from the DOM tree, this always fails.
+ OwningNonNull<nsINode> container = *mPointToInsert.GetContainer();
+ OwningNonNull<nsIContent> contentToInsert = *mContentToInsert;
+ ErrorResult error;
+ container->RemoveChild(contentToInsert, error);
+ NS_WARNING_ASSERTION(!error.Failed(), "nsINode::RemoveChild() failed");
+ return error.StealNSResult();
+}
+
+NS_IMETHODIMP InsertNodeTransaction::RedoTransaction() {
+ MOZ_LOG(GetLogModule(), LogLevel::Info,
+ ("%p InsertNodeTransaction::%s this=%s", this, __FUNCTION__,
+ ToString(*this).c_str()));
+ nsresult rv = DoTransaction();
+ if (MOZ_UNLIKELY(NS_FAILED(rv))) {
+ NS_WARNING("InsertNodeTransaction::RedoTransaction() failed");
+ return rv;
+ }
+
+ if (!mEditorBase->AllowsTransactionsToChangeSelection()) {
+ return NS_OK;
+ }
+
+ OwningNonNull<EditorBase> editorBase(*mEditorBase);
+ rv = editorBase->CollapseSelectionTo(
+ SuggestPointToPutCaret<EditorRawDOMPoint>());
+ NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
+ "EditorBase::CollapseSelectionTo() failed, but ignored");
+ return NS_OK;
+}
+
+} // namespace mozilla