зеркало из https://github.com/mozilla/gecko-dev.git
144 строки
4.4 KiB
C++
144 строки
4.4 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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* Ben Newman <mozilla@benjamn.com> (original author)
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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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#ifndef mozilla_jetpack_JetpackActorCommon_h
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#define mozilla_jetpack_JetpackActorCommon_h
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#include "nsClassHashtable.h"
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#include "nsHashKeys.h"
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#include "nsTArray.h"
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#include "nsString.h"
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#include "nsAutoJSValHolder.h"
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struct JSContext;
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namespace mozilla {
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namespace jetpack {
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class KeyValue;
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class PrimVariant;
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class CompVariant;
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class Variant;
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class JetpackActorCommon
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{
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public:
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bool
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RecvMessage(JSContext* cx,
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const nsString& messageName,
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const InfallibleTArray<Variant>& data,
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InfallibleTArray<Variant>* results);
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nsresult
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RegisterReceiver(JSContext* cx,
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const nsString& messageName,
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jsval receiver);
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void
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UnregisterReceiver(const nsString& messageName,
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jsval receiver);
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void
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UnregisterReceivers(const nsString& messageName) {
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mReceivers.Remove(messageName);
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}
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void ClearReceivers() {
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mReceivers.Clear();
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}
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class OpaqueSeenType;
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static bool jsval_to_Variant(JSContext* cx, jsval from, Variant* to,
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OpaqueSeenType* seen = NULL);
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static bool jsval_from_Variant(JSContext* cx, const Variant& from, jsval* to,
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OpaqueSeenType* seen = NULL);
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protected:
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JetpackActorCommon() {
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mReceivers.Init();
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NS_ASSERTION(mReceivers.IsInitialized(),
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"Failed to initialize message receiver hash set");
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}
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private:
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static bool jsval_to_PrimVariant(JSContext* cx, JSType type, jsval from,
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PrimVariant* to);
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static bool jsval_to_CompVariant(JSContext* cx, JSType type, jsval from,
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CompVariant* to, OpaqueSeenType* seen);
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static bool jsval_from_PrimVariant(JSContext* cx, const PrimVariant& from,
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jsval* to);
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static bool jsval_from_CompVariant(JSContext* cx, const CompVariant& from,
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jsval* to, OpaqueSeenType* seen);
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// Don't want to be memcpy'ing nsAutoJSValHolders around, so we need a
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// linked list of receivers.
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class RecList
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{
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JSContext* mCx;
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class RecNode
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{
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nsAutoJSValHolder mHolder;
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public:
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RecNode* down;
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RecNode(JSContext* cx, jsval v) : down(NULL) {
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mHolder.Hold(cx);
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mHolder = v;
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}
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jsval value() { return mHolder; }
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}* mHead;
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public:
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RecList(JSContext* cx) : mCx(cx), mHead(NULL) {}
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~RecList();
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void add(jsval v);
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void remove(jsval v);
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bool copyTo(JSContext *cx, nsTArray<jsval>& dst) const;
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};
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nsClassHashtable<nsStringHashKey, RecList> mReceivers;
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};
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} // namespace jetpack
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} // namespace mozilla
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#endif
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