gecko/ipc/testshell/TestShellParent.cpp

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/* 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/Util.h"
#include "mozilla/dom/ContentParent.h"
#include "mozilla/jsipc/ContextWrapperParent.h"
#include "nsAutoPtr.h"
using namespace mozilla;
using mozilla::ipc::TestShellParent;
using mozilla::ipc::TestShellCommandParent;
using mozilla::ipc::PTestShellCommandParent;
using mozilla::dom::ContentParent;
using mozilla::jsipc::PContextWrapperParent;
using mozilla::jsipc::ContextWrapperParent;
PTestShellCommandParent*
TestShellParent::AllocPTestShellCommand(const nsString& aCommand)
{
return new TestShellCommandParent();
}
bool
TestShellParent::DeallocPTestShellCommand(PTestShellCommandParent* aActor)
{
delete aActor;
return true;
}
bool
TestShellParent::CommandDone(TestShellCommandParent* command,
const nsString& aResponse)
{
// XXX what should happen if the callback fails?
/*JSBool ok = */command->RunCallback(aResponse);
command->ReleaseCallback();
return true;
}
PContextWrapperParent*
TestShellParent::AllocPContextWrapper()
{
ContentParent* cpp = static_cast<ContentParent*>(Manager());
return new ContextWrapperParent(cpp);
}
bool
TestShellParent::DeallocPContextWrapper(PContextWrapperParent* actor)
{
delete actor;
return true;
}
JSBool
TestShellParent::GetGlobalJSObject(JSContext* cx, JSObject** globalp)
{
// TODO Unify this code with TabParent::GetGlobalJSObject.
InfallibleTArray<PContextWrapperParent*> cwps(1);
ManagedPContextWrapperParent(cwps);
if (cwps.Length() < 1)
return JS_FALSE;
NS_ASSERTION(cwps.Length() == 1, "More than one PContextWrapper?");
ContextWrapperParent* cwp = static_cast<ContextWrapperParent*>(cwps[0]);
return cwp->GetGlobalJSObject(cx, globalp);
}
JSBool
TestShellCommandParent::SetCallback(JSContext* aCx,
jsval aCallback)
{
if (!mCallback.Hold(aCx)) {
return JS_FALSE;
}
mCallback = aCallback;
mCx = aCx;
return JS_TRUE;
}
JSBool
TestShellCommandParent::RunCallback(const nsString& aResponse)
{
NS_ENSURE_TRUE(*mCallback.ToJSValPtr() != JSVAL_NULL && mCx, JS_FALSE);
JSAutoRequest ar(mCx);
JSObject* global = JS_GetGlobalObject(mCx);
NS_ENSURE_TRUE(global, JS_FALSE);
JSAutoEnterCompartment ac;
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if (!ac.enter(mCx, global)) {
NS_ERROR("Failed to enter compartment!");
return false;
}
JSString* str = JS_NewUCStringCopyN(mCx, aResponse.get(), aResponse.Length());
NS_ENSURE_TRUE(str, JS_FALSE);
jsval argv[] = { STRING_TO_JSVAL(str) };
unsigned argc = ArrayLength(argv);
jsval rval;
JSBool ok = JS_CallFunctionValue(mCx, global, mCallback, argc, argv, &rval);
NS_ENSURE_TRUE(ok, JS_FALSE);
return JS_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());
}
}