ipc/testshell/TestShellParent.cpp

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/ipc/testshell/TestShellParent.cpp	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,102 @@
     1.4 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.5 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.6 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.7 +
     1.8 +#include "TestShellParent.h"
     1.9 +
    1.10 +/* This must occur *after* TestShellParent.h to avoid typedefs conflicts. */
    1.11 +#include "mozilla/ArrayUtils.h"
    1.12 +
    1.13 +#include "mozilla/dom/ContentParent.h"
    1.14 +
    1.15 +#include "nsAutoPtr.h"
    1.16 +#include "nsCxPusher.h"
    1.17 +
    1.18 +using namespace mozilla;
    1.19 +using mozilla::ipc::TestShellParent;
    1.20 +using mozilla::ipc::TestShellCommandParent;
    1.21 +using mozilla::ipc::PTestShellCommandParent;
    1.22 +using mozilla::dom::ContentParent;
    1.23 +
    1.24 +PTestShellCommandParent*
    1.25 +TestShellParent::AllocPTestShellCommandParent(const nsString& aCommand)
    1.26 +{
    1.27 +  return new TestShellCommandParent();
    1.28 +}
    1.29 +
    1.30 +bool
    1.31 +TestShellParent::DeallocPTestShellCommandParent(PTestShellCommandParent* aActor)
    1.32 +{
    1.33 +  delete aActor;
    1.34 +  return true;
    1.35 +}
    1.36 +
    1.37 +bool
    1.38 +TestShellParent::CommandDone(TestShellCommandParent* command,
    1.39 +                             const nsString& aResponse)
    1.40 +{
    1.41 +  // XXX what should happen if the callback fails?
    1.42 +  /*bool ok = */command->RunCallback(aResponse);
    1.43 +  command->ReleaseCallback();
    1.44 +
    1.45 +  return true;
    1.46 +}
    1.47 +
    1.48 +bool
    1.49 +TestShellCommandParent::SetCallback(JSContext* aCx,
    1.50 +                                    JS::Value aCallback)
    1.51 +{
    1.52 +  if (!mCallback.Hold(aCx)) {
    1.53 +    return false;
    1.54 +  }
    1.55 +
    1.56 +  mCallback = aCallback;
    1.57 +  mCx = aCx;
    1.58 +
    1.59 +  return true;
    1.60 +}
    1.61 +
    1.62 +bool
    1.63 +TestShellCommandParent::RunCallback(const nsString& aResponse)
    1.64 +{
    1.65 +  NS_ENSURE_TRUE(!mCallback.get().isNull() && mCx, false);
    1.66 +
    1.67 +  // We're pulling a cx off the heap, so make sure it's stack-top.
    1.68 +  AutoCxPusher pusher(mCx);
    1.69 +  NS_ENSURE_TRUE(mCallback.ToJSObject(), false);
    1.70 +  JSAutoCompartment ac(mCx, mCallback.ToJSObject());
    1.71 +  JS::Rooted<JSObject*> global(mCx, JS::CurrentGlobalOrNull(mCx));
    1.72 +
    1.73 +  JSString* str = JS_NewUCStringCopyN(mCx, aResponse.get(), aResponse.Length());
    1.74 +  NS_ENSURE_TRUE(str, false);
    1.75 +
    1.76 +  JS::Rooted<JS::Value> strVal(mCx, JS::StringValue(str));
    1.77 +
    1.78 +  JS::Rooted<JS::Value> rval(mCx);
    1.79 +  JS::Rooted<JS::Value> callback(mCx, mCallback);
    1.80 +  bool ok = JS_CallFunctionValue(mCx, global, callback, strVal, &rval);
    1.81 +  NS_ENSURE_TRUE(ok, false);
    1.82 +
    1.83 +  return true;
    1.84 +}
    1.85 +
    1.86 +void
    1.87 +TestShellCommandParent::ReleaseCallback()
    1.88 +{
    1.89 +  mCallback.Release();
    1.90 +}
    1.91 +
    1.92 +bool
    1.93 +TestShellCommandParent::ExecuteCallback(const nsString& aResponse)
    1.94 +{
    1.95 +  return static_cast<TestShellParent*>(Manager())->CommandDone(
    1.96 +      this, aResponse);
    1.97 +}
    1.98 +
    1.99 +void
   1.100 +TestShellCommandParent::ActorDestroy(ActorDestroyReason why)
   1.101 +{
   1.102 +  if (why == AbnormalShutdown) {
   1.103 +    ExecuteCallback(EmptyString());
   1.104 +  }
   1.105 +}

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