Add m-esr52 at 52.6.0

1 files changed, 189 insertions, 0 deletions

diff --git a/js/xpconnect/src/XPCRuntimeService.cpp b/js/xpconnect/src/XPCRuntimeService.cpp
new file mode 100644
index 000000000..ce79dcc86
--- /dev/null
+++ b/js/xpconnect/src/XPCRuntimeService.cpp
@@ -0,0 +1,189 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* vim: set ts=8 sts=4 et sw=4 tw=99: */
+/* 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;
+}