gecko-dev/dom/base/mozAutoDocUpdate.h
Emilio Cobos Álvarez d2ed260822 Bug 1517241 - Rename nsIDocument to mozilla::dom::Document. r=smaug
Summary: Really sorry for the size of the patch. It's mostly automatic
s/nsIDocument/Document/ but I had to fix up in a bunch of places manually to
add the right namespacing and such.

Overall it's not a very interesting patch I think.

nsDocument.cpp turns into Document.cpp, nsIDocument.h into Document.h and
nsIDocumentInlines.h into DocumentInlines.h.

I also changed a bunch of nsCOMPtr usage to RefPtr, but not all of it.

While fixing up some of the bits I also removed some unneeded OwnerDoc() null
checks and such, but I didn't do anything riskier than that.
2019-01-03 17:48:33 +01:00

52 lines
1.7 KiB
C++

/* -*- 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