gecko-dev/js/xpconnect/idl/nsIXPCScriptable.idl

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
 *
 * 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 "nsISupports.idl"
#include "nsIClassInfo.idl"

%{C++
#ifdef XP_WIN
#undef GetClassName
#endif

#include "js/TypeDecls.h"

namespace JS {
class CallArgs;
}

%}

interface nsIXPConnectWrappedNative;

[ptr] native JSContextPtr(JSContext);
[ptr] native JSObjectPtr(JSObject);
[ptr] native JSValPtr(JS::Value);
[ptr] native JSGCContextPtr(JS::GCContext);
[ref] native JSCallArgsRef(const JS::CallArgs);
[ptr] native JSClassPtr(const JSClass);
      native JSMutableHandleIdVector(JS::MutableHandleVector<JS::PropertyKey>);

%{ C++
    // nsIXPCScriptable flags (only 32 bits available!). They are defined via
    // #defines so they can be used in #ifndef guards in xpc_map_end.h.

    #define XPC_SCRIPTABLE_WANT_PRECREATE                   (1 <<  0)
    // (1 << 1) is unused
    // (1 << 2) is unused
    // (1 << 3) is unused
    #define XPC_SCRIPTABLE_WANT_NEWENUMERATE                (1 <<  4)
    #define XPC_SCRIPTABLE_WANT_RESOLVE                     (1 <<  5)
    #define XPC_SCRIPTABLE_WANT_FINALIZE                    (1 <<  6)
    #define XPC_SCRIPTABLE_WANT_CALL                        (1 <<  7)
    #define XPC_SCRIPTABLE_WANT_CONSTRUCT                   (1 <<  8)
    #define XPC_SCRIPTABLE_WANT_HASINSTANCE                 (1 <<  9)
    #define XPC_SCRIPTABLE_USE_JSSTUB_FOR_ADDPROPERTY       (1 << 10)
    #define XPC_SCRIPTABLE_USE_JSSTUB_FOR_DELPROPERTY       (1 << 11)
    // (1 << 12) is unused
    #define XPC_SCRIPTABLE_DONT_ENUM_QUERY_INTERFACE        (1 << 13)
    // (1 << 14) is unused
    // (1 << 15) is unused
    #define XPC_SCRIPTABLE_ALLOW_PROP_MODS_DURING_RESOLVE   (1 << 16)
    // (1 << 17) is unused
    #define XPC_SCRIPTABLE_IS_GLOBAL_OBJECT                 (1 << 18)
    #define XPC_SCRIPTABLE_DONT_REFLECT_INTERFACE_NAMES     (1 << 19)
%}

/**
 * Note: This is not really an XPCOM interface.  For example, callers must
 * guarantee that they set the *_retval of the various methods that return a
 * boolean to PR_TRUE before making the call.  Implementations may skip writing
 * to *_retval unless they want to return PR_FALSE.
 */
[uuid(19b70b26-7c3f-437f-a04a-2a8f9e28b617)]
interface nsIXPCScriptable : nsISupports
{
    readonly attribute AUTF8String className;
    [notxpcom,nostdcall] uint32_t getScriptableFlags();
    [notxpcom,nostdcall] JSClassPtr getJSClass();

    void   preCreate(in nsISupports nativeObj, in JSContextPtr cx,
                     in JSObjectPtr globalObj, out JSObjectPtr parentObj);

    boolean newEnumerate(in nsIXPConnectWrappedNative wrapper,
                         in JSContextPtr cx, in JSObjectPtr obj,
                         in JSMutableHandleIdVector properties,
                         in boolean enumerableOnly);

    boolean resolve(in nsIXPConnectWrappedNative wrapper,
                    in JSContextPtr cx, in JSObjectPtr obj, in jsid id,
                    out boolean resolvedp);

    void   finalize(in nsIXPConnectWrappedNative wrapper,
                    in JSGCContextPtr gcx, in JSObjectPtr obj);

    boolean call(in nsIXPConnectWrappedNative wrapper,
                 in JSContextPtr cx, in JSObjectPtr obj,
                 in JSCallArgsRef args);

    boolean construct(in nsIXPConnectWrappedNative wrapper,
                      in JSContextPtr cx, in JSObjectPtr obj,
                      in JSCallArgsRef args);

    boolean hasInstance(in nsIXPConnectWrappedNative wrapper,
                        in JSContextPtr cx, in JSObjectPtr obj,
                        in jsval val, out boolean bp);

%{ C++
    #define GET_IT(f_, c_) \
    bool f_() { \
        return 0 != (GetScriptableFlags() & XPC_SCRIPTABLE_##c_); \
    }

    GET_IT(WantPreCreate,                WANT_PRECREATE)
    GET_IT(WantNewEnumerate,             WANT_NEWENUMERATE)
    GET_IT(WantResolve,                  WANT_RESOLVE)
    GET_IT(WantFinalize,                 WANT_FINALIZE)
    GET_IT(WantCall,                     WANT_CALL)
    GET_IT(WantConstruct,                WANT_CONSTRUCT)
    GET_IT(WantHasInstance,              WANT_HASINSTANCE)
    GET_IT(UseJSStubForAddProperty,      USE_JSSTUB_FOR_ADDPROPERTY)
    GET_IT(UseJSStubForDelProperty,      USE_JSSTUB_FOR_DELPROPERTY)
    GET_IT(DontEnumQueryInterface,       DONT_ENUM_QUERY_INTERFACE)
    GET_IT(AllowPropModsDuringResolve,   ALLOW_PROP_MODS_DURING_RESOLVE)
    GET_IT(IsGlobalObject,               IS_GLOBAL_OBJECT)
    GET_IT(DontReflectInterfaceNames,    DONT_REFLECT_INTERFACE_NAMES)

    #undef GET_IT
%}
};