/usr/include/thunderbird-11.0.1/mozAutoDocUpdate.h is in thunderbird-dev 11.0.1+build1-0ubuntu2.
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Boris Zbarsky <bzbarsky@mit.edu>.
* Portions created by the Initial Developer are Copyright (C) 2003
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsContentUtils.h"
#include "nsIDocument.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 NS_STACK_CLASS mozAutoDocUpdate
{
public:
mozAutoDocUpdate(nsIDocument* aDocument, nsUpdateType aUpdateType,
bool aNotify) :
mDocument(aNotify ? aDocument : nsnull),
mUpdateType(aUpdateType)
{
if (mDocument) {
mDocument->BeginUpdate(mUpdateType);
}
else {
nsContentUtils::AddScriptBlocker();
}
}
~mozAutoDocUpdate()
{
if (mDocument) {
mDocument->EndUpdate(mUpdateType);
}
else {
nsContentUtils::RemoveScriptBlocker();
}
}
private:
nsCOMPtr<nsIDocument> mDocument;
nsUpdateType mUpdateType;
};
#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,type,notify) \
mozAutoDocUpdate MOZ_AUTO_DOC_UPDATE_PASTE(_autoDocUpdater_, __LINE__) \
(doc,type,notify)
/**
* Creates an update batch only under certain conditions.
* Use this rather than mozAutoDocUpdate when you expect inner updates
* to notify but you don't always want to spec cycles creating a batch.
* This is needed to avoid having this batch always create a blocker,
* but then have inner mozAutoDocUpdate call the last EndUpdate before.
* we remove that blocker. See bug 423269.
*/
class NS_STACK_CLASS mozAutoDocConditionalContentUpdateBatch
{
public:
mozAutoDocConditionalContentUpdateBatch(nsIDocument* aDocument,
bool aNotify) :
mDocument(aNotify ? aDocument : nsnull)
{
if (mDocument) {
mDocument->BeginUpdate(UPDATE_CONTENT_MODEL);
}
}
~mozAutoDocConditionalContentUpdateBatch()
{
if (mDocument) {
mDocument->EndUpdate(UPDATE_CONTENT_MODEL);
}
}
private:
nsCOMPtr<nsIDocument> mDocument;
};
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