gecko-dev/dom/bindings/StructuredClone.cpp

62 строки
1.9 KiB
C++
Исходник Обычный вид История

/* -*- 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/. */
#include "mozilla/dom/StructuredClone.h"
#include "js/StructuredClone.h"
#include "mozilla/dom/ImageData.h"
#include "mozilla/dom/StructuredCloneTags.h"
namespace mozilla {
namespace dom {
JSObject*
ReadStructuredCloneImageData(JSContext* aCx, JSStructuredCloneReader* aReader)
{
// Read the information out of the stream.
uint32_t width, height;
JS::Rooted<JS::Value> dataArray(aCx);
if (!JS_ReadUint32Pair(aReader, &width, &height) ||
!JS_ReadTypedArray(aReader, &dataArray)) {
return nullptr;
}
MOZ_ASSERT(dataArray.isObject());
// Protect the result from a moving GC in ~nsRefPtr.
JS::Rooted<JSObject*> result(aCx);
{
// Construct the ImageData.
Bug 1207245 - part 6 - rename nsRefPtr<T> to RefPtr<T>; r=ehsan; a=Tomcat The bulk of this commit was generated with a script, executed at the top level of a typical source code checkout. The only non-machine-generated part was modifying MFBT's moz.build to reflect the new naming. CLOSED TREE makes big refactorings like this a piece of cake. # The main substitution. find . -name '*.cpp' -o -name '*.cc' -o -name '*.h' -o -name '*.mm' -o -name '*.idl'| \ xargs perl -p -i -e ' s/nsRefPtr\.h/RefPtr\.h/g; # handle includes s/nsRefPtr ?</RefPtr</g; # handle declarations and variables ' # Handle a special friend declaration in gfx/layers/AtomicRefCountedWithFinalize.h. perl -p -i -e 's/::nsRefPtr;/::RefPtr;/' gfx/layers/AtomicRefCountedWithFinalize.h # Handle nsRefPtr.h itself, a couple places that define constructors # from nsRefPtr, and code generators specially. We do this here, rather # than indiscriminantly s/nsRefPtr/RefPtr/, because that would rename # things like nsRefPtrHashtable. perl -p -i -e 's/nsRefPtr/RefPtr/g' \ mfbt/nsRefPtr.h \ xpcom/glue/nsCOMPtr.h \ xpcom/base/OwningNonNull.h \ ipc/ipdl/ipdl/lower.py \ ipc/ipdl/ipdl/builtin.py \ dom/bindings/Codegen.py \ python/lldbutils/lldbutils/utils.py # In our indiscriminate substitution above, we renamed # nsRefPtrGetterAddRefs, the class behind getter_AddRefs. Fix that up. find . -name '*.cpp' -o -name '*.h' -o -name '*.idl' | \ xargs perl -p -i -e 's/nsRefPtrGetterAddRefs/RefPtrGetterAddRefs/g' if [ -d .git ]; then git mv mfbt/nsRefPtr.h mfbt/RefPtr.h else hg mv mfbt/nsRefPtr.h mfbt/RefPtr.h fi --HG-- rename : mfbt/nsRefPtr.h => mfbt/RefPtr.h
2015-10-18 08:24:48 +03:00
RefPtr<ImageData> imageData = new ImageData(width, height,
dataArray.toObject());
// Wrap it in a JS::Value.
if (!imageData->WrapObject(aCx, nullptr, &result)) {
return nullptr;
}
}
return result;
}
bool
WriteStructuredCloneImageData(JSContext* aCx, JSStructuredCloneWriter* aWriter,
ImageData* aImageData)
{
uint32_t width = aImageData->Width();
uint32_t height = aImageData->Height();
JS::Rooted<JSObject*> dataArray(aCx, aImageData->GetDataObject());
if (!JS_WrapObject(aCx, &dataArray)) {
return false;
}
JS::Rooted<JS::Value> arrayValue(aCx, JS::ObjectValue(*dataArray));
return JS_WriteUint32Pair(aWriter, SCTAG_DOM_IMAGEDATA, 0) &&
JS_WriteUint32Pair(aWriter, width, height) &&
JS_WriteTypedArray(aWriter, arrayValue);
}
} // namespace dom
} // namespace mozilla