michael@0: /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
michael@0: /* vim: set ts=8 sts=4 et sw=4 tw=99: */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "nsContentUtils.h"
michael@0: #include "BackstagePass.h"
michael@0: #include "nsIProgrammingLanguage.h"
michael@0: #include "nsDOMClassInfo.h"
michael@0: #include "nsIPrincipal.h"
michael@0: 
michael@0: #include "mozilla/dom/workers/Workers.h"
michael@0: 
michael@0: using mozilla::dom::workers::ResolveWorkerClasses;
michael@0: 
michael@0: NS_INTERFACE_MAP_BEGIN(BackstagePass)
michael@0:   NS_INTERFACE_MAP_ENTRY(nsIGlobalObject)
michael@0:   NS_INTERFACE_MAP_ENTRY(nsIXPCScriptable)
michael@0:   NS_INTERFACE_MAP_ENTRY(nsIClassInfo)
michael@0:   NS_INTERFACE_MAP_ENTRY(nsIScriptObjectPrincipal)
michael@0:   NS_INTERFACE_MAP_ENTRY(nsISupportsWeakReference)
michael@0:   NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIXPCScriptable)
michael@0: NS_INTERFACE_MAP_END
michael@0: 
michael@0: NS_IMPL_ADDREF(BackstagePass)
michael@0: NS_IMPL_RELEASE(BackstagePass)
michael@0: 
michael@0: // The nsIXPCScriptable map declaration that will generate stubs for us...
michael@0: #define XPC_MAP_CLASSNAME           BackstagePass
michael@0: #define XPC_MAP_QUOTED_CLASSNAME   "BackstagePass"
michael@0: #define                             XPC_MAP_WANT_NEWRESOLVE
michael@0: #define                             XPC_MAP_WANT_FINALIZE
michael@0: #define                             XPC_MAP_WANT_PRECREATE
michael@0: 
michael@0: #define XPC_MAP_FLAGS       nsIXPCScriptable::USE_JSSTUB_FOR_ADDPROPERTY   |  \
michael@0:                             nsIXPCScriptable::USE_JSSTUB_FOR_DELPROPERTY   |  \
michael@0:                             nsIXPCScriptable::USE_JSSTUB_FOR_SETPROPERTY   |  \
michael@0:                             nsIXPCScriptable::DONT_ENUM_STATIC_PROPS       |  \
michael@0:                             nsIXPCScriptable::DONT_ENUM_QUERY_INTERFACE    |  \
michael@0:                             nsIXPCScriptable::IS_GLOBAL_OBJECT             |  \
michael@0:                             nsIXPCScriptable::DONT_REFLECT_INTERFACE_NAMES
michael@0: #include "xpc_map_end.h" /* This will #undef the above */
michael@0: 
michael@0: /* bool newResolve (in nsIXPConnectWrappedNative wrapper, in JSContextPtr cx, in JSObjectPtr obj, in jsval id, out JSObjectPtr objp); */
michael@0: NS_IMETHODIMP
michael@0: BackstagePass::NewResolve(nsIXPConnectWrappedNative *wrapper,
michael@0:                           JSContext * cx, JSObject * objArg,
michael@0:                           jsid idArg, JSObject * *objpArg,
michael@0:                           bool *_retval)
michael@0: {
michael@0:     JS::RootedObject obj(cx, objArg);
michael@0:     JS::RootedId id(cx, idArg);
michael@0: 
michael@0:     bool resolved;
michael@0:     *objpArg = nullptr;
michael@0: 
michael@0:     *_retval = !!JS_ResolveStandardClass(cx, obj, id, &resolved);
michael@0:     NS_ENSURE_TRUE(*_retval, NS_ERROR_FAILURE);
michael@0: 
michael@0:     if (resolved) {
michael@0:         *objpArg = obj;
michael@0:         return NS_OK;
michael@0:     }
michael@0: 
michael@0:     JS::RootedObject objp(cx, *objpArg);
michael@0: 
michael@0:     *_retval = ResolveWorkerClasses(cx, obj, id, &objp);
michael@0:     NS_ENSURE_TRUE(*_retval, NS_ERROR_FAILURE);
michael@0: 
michael@0:     if (objp) {
michael@0:         *objpArg = objp;
michael@0:         return NS_OK;
michael@0:     }
michael@0: 
michael@0:     return NS_OK;
michael@0: }
michael@0: 
michael@0: /***************************************************************************/
michael@0: /* void getInterfaces (out uint32_t count, [array, size_is (count), retval]
michael@0:                        out nsIIDPtr array); */
michael@0: NS_IMETHODIMP
michael@0: BackstagePass::GetInterfaces(uint32_t *aCount, nsIID * **aArray)
michael@0: {
michael@0:     const uint32_t count = 2;
michael@0:     *aCount = count;
michael@0:     nsIID **array;
michael@0:     *aArray = array = static_cast<nsIID**>(nsMemory::Alloc(count * sizeof(nsIID*)));
michael@0:     if (!array)
michael@0:         return NS_ERROR_OUT_OF_MEMORY;
michael@0: 
michael@0:     uint32_t index = 0;
michael@0:     nsIID* clone;
michael@0: #define PUSH_IID(id)                                                          \
michael@0:     clone = static_cast<nsIID *>(nsMemory::Clone(&NS_GET_IID( id ),           \
michael@0:                                                  sizeof(nsIID)));             \
michael@0:     if (!clone)                                                               \
michael@0:         goto oom;                                                             \
michael@0:     array[index++] = clone;
michael@0: 
michael@0:     PUSH_IID(nsIXPCScriptable)
michael@0:     PUSH_IID(nsIScriptObjectPrincipal)
michael@0: #undef PUSH_IID
michael@0: 
michael@0:     return NS_OK;
michael@0: oom:
michael@0:     while (index)
michael@0:         nsMemory::Free(array[--index]);
michael@0:     nsMemory::Free(array);
michael@0:     *aArray = nullptr;
michael@0:     return NS_ERROR_OUT_OF_MEMORY;
michael@0: }
michael@0: 
michael@0: /* nsISupports getHelperForLanguage (in uint32_t language); */
michael@0: NS_IMETHODIMP
michael@0: BackstagePass::GetHelperForLanguage(uint32_t language,
michael@0:                                     nsISupports **retval)
michael@0: {
michael@0:     nsCOMPtr<nsISupports> supports =
michael@0:         do_QueryInterface(static_cast<nsIGlobalObject *>(this));
michael@0:     supports.forget(retval);
michael@0:     return NS_OK;
michael@0: }
michael@0: 
michael@0: /* readonly attribute string contractID; */
michael@0: NS_IMETHODIMP
michael@0: BackstagePass::GetContractID(char * *aContractID)
michael@0: {
michael@0:     *aContractID = nullptr;
michael@0:     return NS_ERROR_NOT_AVAILABLE;
michael@0: }
michael@0: 
michael@0: /* readonly attribute string classDescription; */
michael@0: NS_IMETHODIMP
michael@0: BackstagePass::GetClassDescription(char * *aClassDescription)
michael@0: {
michael@0:     static const char classDescription[] = "BackstagePass";
michael@0:     *aClassDescription = (char*)nsMemory::Clone(classDescription, sizeof(classDescription));
michael@0:     return *aClassDescription ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
michael@0: }
michael@0: 
michael@0: /* readonly attribute nsCIDPtr classID; */
michael@0: NS_IMETHODIMP
michael@0: BackstagePass::GetClassID(nsCID * *aClassID)
michael@0: {
michael@0:     *aClassID = nullptr;
michael@0:     return NS_OK;
michael@0: }
michael@0: 
michael@0: /* readonly attribute uint32_t implementationLanguage; */
michael@0: NS_IMETHODIMP
michael@0: BackstagePass::GetImplementationLanguage(uint32_t *aImplementationLanguage)
michael@0: {
michael@0:     *aImplementationLanguage = nsIProgrammingLanguage::CPLUSPLUS;
michael@0:     return NS_OK;
michael@0: }
michael@0: 
michael@0: /* readonly attribute uint32_t flags; */
michael@0: NS_IMETHODIMP
michael@0: BackstagePass::GetFlags(uint32_t *aFlags)
michael@0: {
michael@0:     *aFlags = nsIClassInfo::MAIN_THREAD_ONLY;
michael@0:     return NS_OK;
michael@0: }
michael@0: 
michael@0: /* [notxpcom] readonly attribute nsCID classIDNoAlloc; */
michael@0: NS_IMETHODIMP
michael@0: BackstagePass::GetClassIDNoAlloc(nsCID *aClassIDNoAlloc)
michael@0: {
michael@0:     return NS_ERROR_NOT_AVAILABLE;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: BackstagePass::Finalize(nsIXPConnectWrappedNative *wrapper, JSFreeOp * fop, JSObject * obj)
michael@0: {
michael@0:     nsCOMPtr<nsIGlobalObject> bsp(do_QueryWrappedNative(wrapper));
michael@0:     MOZ_ASSERT(bsp);
michael@0:     static_cast<BackstagePass*>(bsp.get())->ForgetGlobalObject();
michael@0:     return NS_OK;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: BackstagePass::PreCreate(nsISupports *nativeObj, JSContext *cx,
michael@0:                          JSObject *globalObj, JSObject **parentObj)
michael@0: {
michael@0:     // We do the same trick here as for WindowSH. Return the js global
michael@0:     // as parent, so XPConenct can find the right scope and the wrapper
michael@0:     // that already exists.
michael@0:     nsCOMPtr<nsIGlobalObject> global(do_QueryInterface(nativeObj));
michael@0:     MOZ_ASSERT(global, "nativeObj not a global object!");
michael@0: 
michael@0:     JSObject *jsglobal = global->GetGlobalJSObject();
michael@0:     if (jsglobal)
michael@0:         *parentObj = jsglobal;
michael@0:     return NS_OK;
michael@0: }
michael@0: 
michael@0: nsresult
michael@0: NS_NewBackstagePass(BackstagePass** ret)
michael@0: {
michael@0:     nsRefPtr<BackstagePass> bsp = new BackstagePass(
michael@0:         nsContentUtils::GetSystemPrincipal());
michael@0:     bsp.forget(ret);
michael@0:     return NS_OK;
michael@0: }