diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /dom/base/mozAutoDocUpdate.h | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.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-- | dom/base/mozAutoDocUpdate.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/dom/base/mozAutoDocUpdate.h b/dom/base/mozAutoDocUpdate.h new file mode 100644 index 0000000000..0b210c3dda --- /dev/null +++ b/dom/base/mozAutoDocUpdate.h @@ -0,0 +1,51 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* 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 mozAutoDocUpdate_h_ +#define mozAutoDocUpdate_h_ + +#include "nsContentUtils.h" // For AddScriptBlocker() and RemoveScriptBlocker(). +#include "mozilla/dom/Document.h" +#include "nsIDocumentObserver.h" + +/** + * Helper class to automatically handle batching of document updates. This + * class will call BeginUpdate on construction and EndUpdate on destruction on + * the given document with the given update type. The document could be null, + * in which case no updates will be called. The constructor also takes a + * boolean that can be set to false to prevent notifications. + */ +class MOZ_STACK_CLASS mozAutoDocUpdate { + public: + mozAutoDocUpdate(mozilla::dom::Document* aDocument, bool aNotify) + : mDocument(aNotify ? aDocument : nullptr) { + if (mDocument) { + mDocument->BeginUpdate(); + } else { + nsContentUtils::AddScriptBlocker(); + } + } + + ~mozAutoDocUpdate() { + if (mDocument) { + mDocument->EndUpdate(); + } else { + nsContentUtils::RemoveScriptBlocker(); + } + } + + private: + RefPtr<mozilla::dom::Document> mDocument; +}; + +#define MOZ_AUTO_DOC_UPDATE_PASTE2(tok, line) tok##line +#define MOZ_AUTO_DOC_UPDATE_PASTE(tok, line) \ + MOZ_AUTO_DOC_UPDATE_PASTE2(tok, line) +#define MOZ_AUTO_DOC_UPDATE(doc, notify) \ + mozAutoDocUpdate MOZ_AUTO_DOC_UPDATE_PASTE(_autoDocUpdater_, __LINE__)( \ + doc, notify) + +#endif |