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/* -*- 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 "xpcprivate.h"
#include "nsContentUtils.h"
#include "BackstagePass.h"
#include "nsDOMClassInfo.h"
#include "nsIPrincipal.h"
#include "mozilla/dom/BindingUtils.h"
NS_INTERFACE_MAP_BEGIN(BackstagePass)
NS_INTERFACE_MAP_ENTRY(nsIGlobalObject)
NS_INTERFACE_MAP_ENTRY(nsIXPCScriptable)
NS_INTERFACE_MAP_ENTRY(nsIClassInfo)
NS_INTERFACE_MAP_ENTRY(nsIScriptObjectPrincipal)
NS_INTERFACE_MAP_ENTRY(nsISupportsWeakReference)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIXPCScriptable)
NS_INTERFACE_MAP_END
NS_IMPL_ADDREF(BackstagePass)
NS_IMPL_RELEASE(BackstagePass)
// The nsIXPCScriptable map declaration that will generate stubs for us...
#define XPC_MAP_CLASSNAME BackstagePass
#define XPC_MAP_QUOTED_CLASSNAME "BackstagePass"
#define XPC_MAP_WANT_RESOLVE
#define XPC_MAP_WANT_ENUMERATE
#define XPC_MAP_WANT_FINALIZE
#define XPC_MAP_WANT_PRECREATE
#define XPC_MAP_FLAGS nsIXPCScriptable::USE_JSSTUB_FOR_ADDPROPERTY | \
nsIXPCScriptable::USE_JSSTUB_FOR_DELPROPERTY | \
nsIXPCScriptable::USE_JSSTUB_FOR_SETPROPERTY | \
nsIXPCScriptable::DONT_ENUM_QUERY_INTERFACE | \
nsIXPCScriptable::IS_GLOBAL_OBJECT | \
nsIXPCScriptable::DONT_REFLECT_INTERFACE_NAMES
#include "xpc_map_end.h" /* This will #undef the above */
JSObject*
BackstagePass::GetGlobalJSObject()
{
if (mWrapper)
return mWrapper->GetFlatJSObject();
return nullptr;
}
void
BackstagePass::SetGlobalObject(JSObject* global)
{
nsISupports* p = XPCWrappedNative::Get(global);
MOZ_ASSERT(p);
mWrapper = static_cast<XPCWrappedNative*>(p);
}
NS_IMETHODIMP
BackstagePass::Resolve(nsIXPConnectWrappedNative* wrapper,
JSContext * cx, JSObject * objArg,
jsid idArg, bool* resolvedp,
bool* _retval)
{
JS::RootedObject obj(cx, objArg);
JS::RootedId id(cx, idArg);
*_retval = mozilla::dom::SystemGlobalResolve(cx, obj, id, resolvedp);
return *_retval ? NS_OK : NS_ERROR_FAILURE;
}
NS_IMETHODIMP
BackstagePass::Enumerate(nsIXPConnectWrappedNative* wrapper, JSContext* cx,
JSObject* objArg, bool* _retval)
{
JS::RootedObject obj(cx, objArg);
*_retval = mozilla::dom::SystemGlobalEnumerate(cx, obj);
return *_retval ? NS_OK : NS_ERROR_FAILURE;
}
/***************************************************************************/
NS_IMETHODIMP
BackstagePass::GetInterfaces(uint32_t* aCount, nsIID * **aArray)
{
const uint32_t count = 2;
*aCount = count;
nsIID** array;
*aArray = array = static_cast<nsIID**>(moz_xmalloc(count * sizeof(nsIID*)));
if (!array)
return NS_ERROR_OUT_OF_MEMORY;
uint32_t index = 0;
nsIID* clone;
#define PUSH_IID(id) \
clone = static_cast<nsIID*>(nsMemory::Clone(&NS_GET_IID( id ), \
sizeof(nsIID))); \
if (!clone) \
goto oom; \
array[index++] = clone;
PUSH_IID(nsIXPCScriptable)
PUSH_IID(nsIScriptObjectPrincipal)
#undef PUSH_IID
return NS_OK;
oom:
while (index)
free(array[--index]);
free(array);
*aArray = nullptr;
return NS_ERROR_OUT_OF_MEMORY;
}
NS_IMETHODIMP
BackstagePass::GetScriptableHelper(nsIXPCScriptable** retval)
{
nsCOMPtr<nsIXPCScriptable> scriptable = this;
scriptable.forget(retval);
return NS_OK;
}
NS_IMETHODIMP
BackstagePass::GetContractID(char * *aContractID)
{
*aContractID = nullptr;
return NS_ERROR_NOT_AVAILABLE;
}
NS_IMETHODIMP
BackstagePass::GetClassDescription(char * *aClassDescription)
{
static const char classDescription[] = "BackstagePass";
*aClassDescription = (char*)nsMemory::Clone(classDescription, sizeof(classDescription));
return *aClassDescription ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
}
NS_IMETHODIMP
BackstagePass::GetClassID(nsCID * *aClassID)
{
*aClassID = nullptr;
return NS_OK;
}
NS_IMETHODIMP
BackstagePass::GetFlags(uint32_t* aFlags)
{
*aFlags = nsIClassInfo::MAIN_THREAD_ONLY;
return NS_OK;
}
NS_IMETHODIMP
BackstagePass::GetClassIDNoAlloc(nsCID* aClassIDNoAlloc)
{
return NS_ERROR_NOT_AVAILABLE;
}
NS_IMETHODIMP
BackstagePass::Finalize(nsIXPConnectWrappedNative* wrapper, JSFreeOp * fop, JSObject * obj)
{
nsCOMPtr<nsIGlobalObject> bsp(do_QueryWrappedNative(wrapper));
MOZ_ASSERT(bsp);
static_cast<BackstagePass*>(bsp.get())->ForgetGlobalObject();
return NS_OK;
}
NS_IMETHODIMP
BackstagePass::PreCreate(nsISupports* nativeObj, JSContext* cx,
JSObject* globalObj, JSObject** parentObj)
{
// We do the same trick here as for WindowSH. Return the js global
// as parent, so XPConenct can find the right scope and the wrapper
// that already exists.
nsCOMPtr<nsIGlobalObject> global(do_QueryInterface(nativeObj));
MOZ_ASSERT(global, "nativeObj not a global object!");
JSObject* jsglobal = global->GetGlobalJSObject();
if (jsglobal)
*parentObj = jsglobal;
return NS_OK;
}
nsresult
NS_NewBackstagePass(BackstagePass** ret)
{
RefPtr<BackstagePass> bsp = new BackstagePass(
nsContentUtils::GetSystemPrincipal());
bsp.forget(ret);
return NS_OK;
}
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