gecko-dev/layout/ipc/RenderFrameChild.cpp

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vim: sw=2 ts=8 et :
*/
/* ***** BEGIN LICENSE BLOCK *****
* 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 Code.
*
* The Initial Developer of the Original Code is
* The Mozilla Foundation
* Portions created by the Initial Developer are Copyright (C) 2010
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Chris Jones <jones.chris.g@gmail.com>
*
* 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 "RenderFrameChild.h"
#include "mozilla/layers/ShadowLayersChild.h"
using mozilla::layers::PLayersChild;
using mozilla::layers::ShadowLayersChild;
namespace mozilla {
namespace layout {
void
RenderFrameChild::Destroy()
{
size_t numChildren = ManagedPLayersChild().Length();
NS_ABORT_IF_FALSE(0 == numChildren || 1 == numChildren,
"render frame must only have 0 or 1 layer forwarder");
if (numChildren) {
ShadowLayersChild* layers =
static_cast<ShadowLayersChild*>(ManagedPLayersChild()[0]);
layers->Destroy();
// |layers| was just deleted, take care
}
Send__delete__(this);
// WARNING: |this| is dead, hands off
}
PLayersChild*
RenderFrameChild::AllocPLayers(LayerManager::LayersBackend* aBackendType)
{
return new ShadowLayersChild();
}
bool
RenderFrameChild::DeallocPLayers(PLayersChild* aLayers)
{
delete aLayers;
return true;
}
} // namespace layout
} // namespace mozilla