gecko-dev/layout/ipc/RenderFrameChild.cpp

57 строки
1.7 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vim: sw=2 ts=8 et :
*/
/* 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/. */
#include "RenderFrameChild.h"
#include "mozilla/layers/LayerTransactionChild.h"
using mozilla::layers::PLayerTransactionChild;
using mozilla::layers::LayerTransactionChild;
namespace mozilla {
namespace layout {
void
RenderFrameChild::Destroy()
{
size_t numChildren = ManagedPLayerTransactionChild().Length();
NS_ABORT_IF_FALSE(0 == numChildren || 1 == numChildren,
"render frame must only have 0 or 1 layer forwarder");
if (numChildren) {
LayerTransactionChild* layers =
static_cast<LayerTransactionChild*>(ManagedPLayerTransactionChild()[0]);
layers->Destroy();
// |layers| was just deleted, take care
}
Send__delete__(this);
// WARNING: |this| is dead, hands off
}
PLayerTransactionChild*
RenderFrameChild::AllocPLayerTransactionChild()
{
LayerTransactionChild* c = new LayerTransactionChild();
c->AddIPDLReference();
// We only create PLayerTransaction objects through PRenderFrame when we don't
// have a PCompositor. This means that the child process content will never
// get drawn to the screen, but some tests rely on it pretending to function
// for now.
c->SetHasNoCompositor();
return c;
}
bool
RenderFrameChild::DeallocPLayerTransactionChild(PLayerTransactionChild* aLayers)
{
static_cast<LayerTransactionChild*>(aLayers)->ReleaseIPDLReference();
return true;
}
} // namespace layout
} // namespace mozilla