gecko-dev/ipc/testshell/TestShellParent.cpp

103 строки
2.5 KiB
C++

/* 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 "TestShellParent.h"
/* This must occur *after* TestShellParent.h to avoid typedefs conflicts. */
#include "mozilla/ArrayUtils.h"
#include "mozilla/dom/ContentParent.h"
#include "nsAutoPtr.h"
#include "nsCxPusher.h"
using namespace mozilla;
using mozilla::ipc::TestShellParent;
using mozilla::ipc::TestShellCommandParent;
using mozilla::ipc::PTestShellCommandParent;
using mozilla::dom::ContentParent;
PTestShellCommandParent*
TestShellParent::AllocPTestShellCommandParent(const nsString& aCommand)
{
return new TestShellCommandParent();
}
bool
TestShellParent::DeallocPTestShellCommandParent(PTestShellCommandParent* aActor)
{
delete aActor;
return true;
}
bool
TestShellParent::CommandDone(TestShellCommandParent* command,
const nsString& aResponse)
{
// XXX what should happen if the callback fails?
/*bool ok = */command->RunCallback(aResponse);
command->ReleaseCallback();
return true;
}
bool
TestShellCommandParent::SetCallback(JSContext* aCx,
JS::Value aCallback)
{
if (!mCallback.Hold(aCx)) {
return false;
}
mCallback = aCallback;
mCx = aCx;
return true;
}
bool
TestShellCommandParent::RunCallback(const nsString& aResponse)
{
NS_ENSURE_TRUE(*mCallback.ToJSValPtr() != JSVAL_NULL && mCx, false);
// We're pulling a cx off the heap, so make sure it's stack-top.
AutoCxPusher pusher(mCx);
NS_ENSURE_TRUE(mCallback.ToJSObject(), false);
JSAutoCompartment ac(mCx, mCallback.ToJSObject());
JS::Rooted<JSObject*> global(mCx, JS::CurrentGlobalOrNull(mCx));
JSString* str = JS_NewUCStringCopyN(mCx, aResponse.get(), aResponse.Length());
NS_ENSURE_TRUE(str, false);
JS::Rooted<JS::Value> strVal(mCx, JS::StringValue(str));
JS::Rooted<JS::Value> rval(mCx);
bool ok = JS_CallFunctionValue(mCx, global, mCallback, 1, strVal.address(),
rval.address());
NS_ENSURE_TRUE(ok, false);
return true;
}
void
TestShellCommandParent::ReleaseCallback()
{
mCallback.Release();
}
bool
TestShellCommandParent::ExecuteCallback(const nsString& aResponse)
{
return static_cast<TestShellParent*>(Manager())->CommandDone(
this, aResponse);
}
void
TestShellCommandParent::ActorDestroy(ActorDestroyReason why)
{
if (why == AbnormalShutdown) {
ExecuteCallback(EmptyString());
}
}