зеркало из https://github.com/mozilla/pjs.git
227 строки
6.0 KiB
C++
227 строки
6.0 KiB
C++
/* -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 8 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla Firefox.
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*
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* The Initial Developer of the Original Code is
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* the Mozilla Foundation <http://www.mozilla.org>.
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* Portions created by the Initial Developer are Copyright (C) 2010
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "mozilla/jetpack/JetpackParent.h"
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#include "mozilla/jetpack/Handle.h"
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#include "nsIURI.h"
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#include "nsNetUtil.h"
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#include "nsIVariant.h"
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#include "nsIXPConnect.h"
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#include "nsIJSContextStack.h"
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namespace mozilla {
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namespace jetpack {
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JetpackParent::JetpackParent(JSContext* cx)
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: mSubprocess(new JetpackProcessParent())
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, mContext(cx)
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{
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mSubprocess->Launch();
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Open(mSubprocess->GetChannel(),
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mSubprocess->GetChildProcessHandle());
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}
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JetpackParent::~JetpackParent()
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{
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if (mSubprocess)
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Destroy();
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}
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NS_IMPL_ISUPPORTS1(JetpackParent, nsIJetpack)
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NS_IMETHODIMP
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JetpackParent::SendMessage(const nsAString& aMessageName)
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{
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nsresult rv;
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nsCOMPtr<nsIXPConnect> xpc(do_GetService(nsIXPConnect::GetCID(), &rv));
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NS_ENSURE_SUCCESS(rv, rv);
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nsAXPCNativeCallContext* ncc = NULL;
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rv = xpc->GetCurrentNativeCallContext(&ncc);
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NS_ENSURE_SUCCESS(rv, rv);
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JSContext* cx;
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rv = ncc->GetJSContext(&cx);
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NS_ENSURE_SUCCESS(rv, rv);
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PRUint32 argc;
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rv = ncc->GetArgc(&argc);
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NS_ENSURE_SUCCESS(rv, rv);
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jsval* argv;
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rv = ncc->GetArgvPtr(&argv);
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NS_ENSURE_SUCCESS(rv, rv);
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nsTArray<Variant> data;
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NS_ENSURE_TRUE(data.SetCapacity(argc), NS_ERROR_OUT_OF_MEMORY);
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JSAutoRequest request(cx);
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for (PRUint32 i = 1; i < argc; ++i)
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if (!jsval_to_Variant(cx, argv[i], data.AppendElement()))
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return NS_ERROR_INVALID_ARG;
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if (!SendSendMessage(nsString(aMessageName), data))
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return NS_ERROR_FAILURE;
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return NS_OK;
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}
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NS_IMETHODIMP
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JetpackParent::RegisterReceiver(const nsAString& aMessageName,
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jsval aReceiver)
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{
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return JetpackActorCommon::RegisterReceiver(mContext,
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nsString(aMessageName),
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aReceiver);
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}
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NS_IMETHODIMP
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JetpackParent::UnregisterReceiver(const nsAString& aMessageName,
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jsval aReceiver)
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{
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JetpackActorCommon::UnregisterReceiver(nsString(aMessageName),
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aReceiver);
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return NS_OK;
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}
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NS_IMETHODIMP
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JetpackParent::UnregisterReceivers(const nsAString& aMessageName)
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{
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JetpackActorCommon::UnregisterReceivers(nsString(aMessageName));
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return NS_OK;
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}
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NS_IMETHODIMP
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JetpackParent::EvalScript(const nsAString& aScript)
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{
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if (!SendEvalScript(nsString(aScript)))
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return NS_ERROR_FAILURE;
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return NS_OK;
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}
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class AutoCXPusher
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{
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public:
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AutoCXPusher(JSContext* cx)
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: mCXStack(do_GetService("@mozilla.org/js/xpc/ContextStack;1"))
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{
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if (mCXStack)
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mCXStack->Push(cx);
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}
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~AutoCXPusher()
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{
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if (mCXStack)
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mCXStack->Pop(NULL);
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}
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private:
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nsCOMPtr<nsIJSContextStack> mCXStack;
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JSContext* mCX;
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};
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bool
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JetpackParent::RecvSendMessage(const nsString& messageName,
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const nsTArray<Variant>& data)
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{
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AutoCXPusher cxp(mContext);
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JSAutoRequest request(mContext);
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return JetpackActorCommon::RecvMessage(mContext, messageName, data, NULL);
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}
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bool
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JetpackParent::RecvCallMessage(const nsString& messageName,
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const nsTArray<Variant>& data,
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nsTArray<Variant>* results)
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{
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AutoCXPusher cxp(mContext);
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JSAutoRequest request(mContext);
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return JetpackActorCommon::RecvMessage(mContext, messageName, data, results);
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}
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NS_IMETHODIMP
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JetpackParent::CreateHandle(nsIVariant** aResult)
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{
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HandleParent* handle =
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static_cast<HandleParent*>(SendPHandleConstructor());
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NS_ENSURE_TRUE(handle, NS_ERROR_OUT_OF_MEMORY);
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nsresult rv;
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nsCOMPtr<nsIXPConnect> xpc(do_GetService(nsIXPConnect::GetCID(), &rv));
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NS_ENSURE_SUCCESS(rv, rv);
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JSAutoRequest request(mContext);
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JSObject* hobj = handle->ToJSObject(mContext);
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if (!hobj)
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return NS_ERROR_FAILURE;
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return xpc->JSToVariant(mContext, OBJECT_TO_JSVAL(hobj), aResult);
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}
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NS_IMETHODIMP
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JetpackParent::Destroy()
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{
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if (!mSubprocess)
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return NS_ERROR_NOT_INITIALIZED;
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Close();
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XRE_GetIOMessageLoop()
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->PostTask(FROM_HERE, new DeleteTask<JetpackProcessParent>(mSubprocess));
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mSubprocess = NULL;
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return NS_OK;
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}
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PHandleParent*
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JetpackParent::AllocPHandle()
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{
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return new HandleParent();
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}
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bool
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JetpackParent::DeallocPHandle(PHandleParent* actor)
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{
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delete actor;
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return true;
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}
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} // namespace jetpack
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} // namespace mozilla
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