49 lines
1.3 KiB
C++
49 lines
1.3 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* 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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#include "js/TypeDecls.h"
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#include "nsGlobalWindow.h"
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#include "nsIPrincipal.h"
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#include "nsIURI.h"
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#include "nsString.h"
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#include "xpcpublic.h"
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namespace mozilla {
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struct FeedWriterEnabled {
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static bool IsEnabled(JSContext* cx, JSObject* aGlobal)
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{
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// Make sure the global is a window
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nsGlobalWindow* win = xpc::WindowGlobalOrNull(aGlobal);
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if (!win) {
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return false;
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}
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// Make sure that the principal is about:feeds.
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nsCOMPtr<nsIPrincipal> principal = win->GetPrincipal();
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NS_ENSURE_TRUE(principal, false);
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nsCOMPtr<nsIURI> uri;
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principal->GetURI(getter_AddRefs(uri));
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if (!uri) {
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return false;
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}
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// First check the scheme to avoid getting long specs in the common case.
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bool isAbout = false;
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uri->SchemeIs("about", &isAbout);
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if (!isAbout) {
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return false;
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}
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// Now check the spec itself
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nsAutoCString spec;
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uri->GetSpec(spec);
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return spec.EqualsLiteral("about:feeds");
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}
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};
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}
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