40 lines
1.1 KiB
C++
40 lines
1.1 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "AutoSelectionRestorer.h"
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namespace mozilla {
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AutoSelectionRestorer::AutoSelectionRestorer(EditorBase* aEditor) {
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if (!aEditor) {
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return;
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}
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if (aEditor->ArePreservingSelection()) {
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// We already have initialized mParentData::mSavedSelection, so this must
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// be nested call.
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return;
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}
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MOZ_ASSERT(aEditor->IsEditActionDataAvailable());
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mEditor = aEditor;
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mEditor->PreserveSelectionAcrossActions();
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}
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AutoSelectionRestorer::~AutoSelectionRestorer() {
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if (!mEditor || !mEditor->ArePreservingSelection()) {
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return;
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}
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DebugOnly<nsresult> rvIgnored = mEditor->RestorePreservedSelection();
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NS_WARNING_ASSERTION(
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NS_SUCCEEDED(rvIgnored),
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"EditorBase::RestorePreservedSelection() failed, but ignored");
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}
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void AutoSelectionRestorer::Abort() {
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if (mEditor) {
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mEditor->StopPreservingSelection();
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}
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}
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} // namespace mozilla
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