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https://gitlab.winehq.org/wine/wine-gecko.git
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72 lines
3.2 KiB
C++
72 lines
3.2 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* vim: set ts=8 sts=4 et sw=4 tw=99: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef __ChromeObjectWrapper_h__
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#define __ChromeObjectWrapper_h__
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#include "mozilla/Attributes.h"
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#include "FilteringWrapper.h"
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namespace xpc {
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struct ExposedPropertiesOnly;
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// When chrome JS objects are exposed to content, they get a ChromeObjectWrapper.
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//
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// The base filtering wrapper here does most of the work for us. We define a
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// custom class here to introduce custom behavior with respect to the prototype
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// chain.
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#define ChromeObjectWrapperBase \
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FilteringWrapper<js::CrossCompartmentSecurityWrapper, ExposedPropertiesOnly>
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class ChromeObjectWrapper : public ChromeObjectWrapperBase
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{
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public:
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ChromeObjectWrapper() : ChromeObjectWrapperBase(0) {}
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/* Custom traps. */
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virtual bool getPropertyDescriptor(JSContext *cx, JS::Handle<JSObject*> wrapper,
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JS::Handle<jsid> id,
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JS::MutableHandle<JSPropertyDescriptor> desc) const MOZ_OVERRIDE;
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virtual bool defineProperty(JSContext *cx, JS::Handle<JSObject*> wrapper,
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JS::Handle<jsid> id,
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JS::MutableHandle<JSPropertyDescriptor> desc) const MOZ_OVERRIDE;
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virtual bool set(JSContext *cx, JS::Handle<JSObject*> wrapper,
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JS::Handle<JSObject*> receiver, JS::Handle<jsid> id,
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bool strict, JS::MutableHandle<JS::Value> vp) const MOZ_OVERRIDE;
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virtual bool has(JSContext *cx, JS::Handle<JSObject*> wrapper,
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JS::Handle<jsid> id, bool *bp) const MOZ_OVERRIDE;
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virtual bool get(JSContext *cx, JS::Handle<JSObject*> wrapper, JS::Handle<JSObject*> receiver,
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JS::Handle<jsid> id, JS::MutableHandle<JS::Value> vp) const MOZ_OVERRIDE;
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virtual bool call(JSContext *cx, JS::Handle<JSObject*> wrapper,
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const JS::CallArgs &args) const MOZ_OVERRIDE;
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virtual bool construct(JSContext *cx, JS::Handle<JSObject*> wrapper,
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const JS::CallArgs &args) const MOZ_OVERRIDE;
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virtual bool objectClassIs(JS::Handle<JSObject*> obj, js::ESClassValue classValue,
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JSContext *cx) const MOZ_OVERRIDE;
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virtual bool enter(JSContext *cx, JS::Handle<JSObject*> wrapper, JS::Handle<jsid> id,
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js::Wrapper::Action act, bool *bp) const MOZ_OVERRIDE;
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// NB: One might think we'd need to implement enumerate(), keys(), iterate(),
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// and getPropertyNames() here. However, ES5 built-in properties aren't
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// enumerable (and SpiderMonkey's implementation seems to match the spec
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// modulo Error.prototype.fileName and Error.prototype.lineNumber). Since
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// we're only remapping the prototypes of standard objects, there would
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// never be anything more to enumerate up the prototype chain. So we can
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// atually skip these.
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static const ChromeObjectWrapper singleton;
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};
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} /* namespace xpc */
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#endif /* __ChromeObjectWrapper_h__ */
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