зеркало из https://github.com/mozilla/gecko-dev.git
50 строки
1.5 KiB
C++
50 строки
1.5 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsQueryActor_h
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#define nsQueryActor_h
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#include "nsCOMPtr.h"
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#include "mozilla/RefPtr.h"
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#include "mozilla/dom/JSWindowActorChild.h"
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#include "mozilla/dom/WindowGlobalChild.h"
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class MOZ_STACK_CLASS nsQueryActor final : public nsCOMPtr_helper {
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public:
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nsQueryActor(const nsDependentString aActorName, nsPIDOMWindowOuter* aWindow)
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: mActorName(aActorName), mWindow(aWindow) {}
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virtual nsresult NS_FASTCALL operator()(const nsIID& aIID,
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void** aResult) const override {
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if (NS_WARN_IF(!mWindow) || !mWindow->GetCurrentInnerWindow()) {
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return NS_ERROR_NO_INTERFACE;
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}
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RefPtr<mozilla::dom::WindowGlobalChild> wgc(
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mWindow->GetCurrentInnerWindow()->GetWindowGlobalChild());
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if (!wgc) {
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return NS_ERROR_NO_INTERFACE;
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}
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RefPtr<mozilla::dom::JSWindowActorChild> actor =
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wgc->GetActor(mActorName, mozilla::IgnoreErrors());
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if (!actor) {
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return NS_ERROR_NO_INTERFACE;
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}
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return actor->QueryInterfaceActor(aIID, aResult);
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}
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private:
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const nsDependentString mActorName;
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nsPIDOMWindowOuter* mWindow;
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};
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inline nsQueryActor do_QueryActor(const char16_t* aActorName,
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nsPIDOMWindowOuter* aWindow) {
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return nsQueryActor(nsDependentString(aActorName), aWindow);
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}
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#endif // defined nsQueryActor_h
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