mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
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110 lines
3.0 KiB
C++
110 lines
3.0 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-*/
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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 file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_dom_DOMJSProxyHandler_h
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#define mozilla_dom_DOMJSProxyHandler_h
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#include "jsapi.h"
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#include "jsfriendapi.h"
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#include "jsproxy.h"
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#include "xpcpublic.h"
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#include "nsString.h"
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#include "mozilla/Likely.h"
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#define DOM_PROXY_OBJECT_SLOT js::JSSLOT_PROXY_PRIVATE
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namespace mozilla {
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namespace dom {
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enum {
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JSPROXYSLOT_EXPANDO = 0
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};
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template<typename T> struct Prefable;
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class DOMProxyHandler : public DOMBaseProxyHandler
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{
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public:
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DOMProxyHandler(const DOMClass& aClass)
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: DOMBaseProxyHandler(true),
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mClass(aClass)
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{
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}
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bool getPropertyDescriptor(JSContext* cx, JSObject* proxy, jsid id, bool set,
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JSPropertyDescriptor* desc);
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bool defineProperty(JSContext* cx, JSObject* proxy, jsid id,
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JSPropertyDescriptor* desc);
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bool delete_(JSContext* cx, JSObject* proxy, jsid id, bool* bp);
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bool enumerate(JSContext* cx, JSObject* proxy, JS::AutoIdVector& props);
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bool fix(JSContext* cx, JSObject* proxy, JS::Value* vp);
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bool has(JSContext* cx, JSObject* proxy, jsid id, bool* bp);
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using js::BaseProxyHandler::obj_toString;
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static JSObject* GetExpandoObject(JSObject* obj)
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{
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MOZ_ASSERT(IsDOMProxy(obj), "expected a DOM proxy object");
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JS::Value v = js::GetProxyExtra(obj, JSPROXYSLOT_EXPANDO);
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return v.isUndefined() ? NULL : v.toObjectOrNull();
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}
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static JSObject* EnsureExpandoObject(JSContext* cx, JSObject* obj);
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const DOMClass& mClass;
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protected:
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static JSString* obj_toString(JSContext* cx, const char* className);
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};
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extern jsid s_length_id;
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int32_t IdToInt32(JSContext* cx, jsid id);
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inline int32_t
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GetArrayIndexFromId(JSContext* cx, jsid id)
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{
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if (MOZ_LIKELY(JSID_IS_INT(id))) {
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return JSID_TO_INT(id);
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}
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if (MOZ_LIKELY(id == s_length_id)) {
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return -1;
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}
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if (MOZ_LIKELY(JSID_IS_ATOM(id))) {
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JSAtom* atom = JSID_TO_ATOM(id);
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jschar s = *js::GetAtomChars(atom);
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if (MOZ_LIKELY((unsigned)s >= 'a' && (unsigned)s <= 'z'))
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return -1;
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uint32_t i;
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JSLinearString* str = js::AtomToLinearString(JSID_TO_ATOM(id));
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return js::StringIsArrayIndex(str, &i) ? i : -1;
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}
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return IdToInt32(cx, id);
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}
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inline void
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FillPropertyDescriptor(JSPropertyDescriptor* desc, JSObject* obj, bool readonly)
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{
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desc->obj = obj;
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desc->attrs = (readonly ? JSPROP_READONLY : 0) | JSPROP_ENUMERATE;
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desc->getter = NULL;
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desc->setter = NULL;
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desc->shortid = 0;
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}
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inline void
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FillPropertyDescriptor(JSPropertyDescriptor* desc, JSObject* obj, jsval v, bool readonly)
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{
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desc->value = v;
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FillPropertyDescriptor(desc, obj, readonly);
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}
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JSObject*
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EnsureExpandoObject(JSContext* cx, JSObject* obj);
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} // namespace dom
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} // namespace mozilla
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#endif /* mozilla_dom_DOMProxyHandler_h */
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