1 files changed, 122 insertions, 0 deletions
diff --git a/editor/libeditor/DeleteMultipleRangesTransaction.cpp b/editor/libeditor/DeleteMultipleRangesTransaction.cpp
new file mode 100644
index 0000000000..cb735f0478
--- /dev/null
+++ b/editor/libeditor/DeleteMultipleRangesTransaction.cpp
@@ -0,0 +1,122 @@
+/* -*- 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 "DeleteMultipleRangesTransaction.h"
+
+#include "DeleteContentTransactionBase.h"
+#include "DeleteRangeTransaction.h"
+#include "EditorBase.h"
+#include "EditorDOMPoint.h"
+#include "EditTransactionBase.h"
+
+#include "nsDebug.h"
+
+namespace mozilla {
+
+NS_IMPL_CYCLE_COLLECTION_INHERITED(DeleteMultipleRangesTransaction,
+                                   EditAggregateTransaction)
+
+NS_IMPL_ADDREF_INHERITED(DeleteMultipleRangesTransaction,
+                         EditAggregateTransaction)
+NS_IMPL_RELEASE_INHERITED(DeleteMultipleRangesTransaction,
+                          EditAggregateTransaction)
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(DeleteMultipleRangesTransaction)
+NS_INTERFACE_MAP_END_INHERITING(EditAggregateTransaction)
+
+NS_IMETHODIMP DeleteMultipleRangesTransaction::DoTransaction() {
+  MOZ_LOG(GetLogModule(), LogLevel::Info,
+          ("%p DeleteMultipleRangesTransaction::%s this={ mName=%s } "
+           "Start==============================",
+           this, __FUNCTION__,
+           nsAtomCString(mName ? mName.get() : nsGkAtoms::_empty).get()));
+  nsresult rv = EditAggregateTransaction::DoTransaction();
+  NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
+                       "EditAggregateTransaction::DoTransaction() failed");
+
+  MOZ_LOG(GetLogModule(), LogLevel::Info,
+          ("%p DeleteMultipleRangesTransaction::%s this={ mName=%s } "
+           "End==============================",
+           this, __FUNCTION__,
+           nsAtomCString(mName ? mName.get() : nsGkAtoms::_empty).get()));
+  return rv;
+}
+
+NS_IMETHODIMP DeleteMultipleRangesTransaction::UndoTransaction() {
+  MOZ_LOG(GetLogModule(), LogLevel::Info,
+          ("%p DeleteMultipleRangesTransaction::%s this={ mName=%s } "
+           "Start==============================",
+           this, __FUNCTION__,
+           nsAtomCString(mName ? mName.get() : nsGkAtoms::_empty).get()));
+
+  nsresult rv = EditAggregateTransaction::UndoTransaction();
+  NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
+                       "EditAggregateTransaction::UndoTransaction() failed");
+
+  MOZ_LOG(GetLogModule(), LogLevel::Info,
+          ("%p DeleteMultipleRangesTransaction::%s this={ mName=%s } "
+           "End==============================",
+           this, __FUNCTION__,
+           nsAtomCString(mName ? mName.get() : nsGkAtoms::_empty).get()));
+  return rv;
+}
+
+NS_IMETHODIMP DeleteMultipleRangesTransaction::RedoTransaction() {
+  MOZ_LOG(GetLogModule(), LogLevel::Info,
+          ("%p DeleteMultipleRangesTransaction::%s this={ mName=%s } "
+           "Start==============================",
+           this, __FUNCTION__,
+           nsAtomCString(mName ? mName.get() : nsGkAtoms::_empty).get()));
+
+  nsresult rv = EditAggregateTransaction::RedoTransaction();
+  NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
+                       "EditAggregateTransaction::RedoTransaction() failed");
+
+  MOZ_LOG(GetLogModule(), LogLevel::Info,
+          ("%p DeleteMultipleRangesTransaction::%s this={ mName=%s } "
+           "End==============================",
+           this, __FUNCTION__,
+           nsAtomCString(mName ? mName.get() : nsGkAtoms::_empty).get()));
+  return rv;
+}
+
+void DeleteMultipleRangesTransaction::AppendChild(
+    DeleteContentTransactionBase& aTransaction) {
+  mChildren.AppendElement(aTransaction);
+}
+
+void DeleteMultipleRangesTransaction::AppendChild(
+    DeleteRangeTransaction& aTransaction) {
+  mChildren.AppendElement(aTransaction);
+}
+
+EditorDOMPoint DeleteMultipleRangesTransaction::SuggestPointToPutCaret() const {
+  for (const OwningNonNull<EditTransactionBase>& transaction :
+       Reversed(mChildren)) {
+    if (const DeleteContentTransactionBase* deleteContentTransaction =
+            transaction->GetAsDeleteContentTransactionBase()) {
+      EditorDOMPoint pointToPutCaret =
+          deleteContentTransaction->SuggestPointToPutCaret();
+      if (pointToPutCaret.IsSet()) {
+        return pointToPutCaret;
+      }
+      continue;
+    }
+    if (const DeleteRangeTransaction* deleteRangeTransaction =
+            transaction->GetAsDeleteRangeTransaction()) {
+      EditorDOMPoint pointToPutCaret =
+          deleteRangeTransaction->SuggestPointToPutCaret();
+      if (pointToPutCaret.IsSet()) {
+        return pointToPutCaret;
+      }
+      continue;
+    }
+    MOZ_ASSERT_UNREACHABLE(
+        "Child transactions must be DeleteContentTransactionBase or "
+        "DeleteRangeTransaction");
+  }
+  return EditorDOMPoint();
+}
+
+}  // namespace mozilla