content/base/src/FeedWriterEnabled.h

Thu, 15 Jan 2015 21:03:48 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Thu, 15 Jan 2015 21:03:48 +0100
branch
TOR_BUG_9701
changeset 11
deefc01c0e14
permissions
-rw-r--r--

Integrate friendly tips from Tor colleagues to make (or not) 4.5 alpha 3;
This includes removal of overloaded (but unused) methods, and addition of
a overlooked call to DataStruct::SetData(nsISupports, uint32_t, bool.)

michael@0 1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0 2 /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0 3 * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0 5
michael@0 6 #include "js/TypeDecls.h"
michael@0 7 #include "nsGlobalWindow.h"
michael@0 8 #include "nsIPrincipal.h"
michael@0 9 #include "nsIURI.h"
michael@0 10 #include "nsString.h"
michael@0 11 #include "xpcpublic.h"
michael@0 12
michael@0 13 namespace mozilla {
michael@0 14
michael@0 15 struct FeedWriterEnabled {
michael@0 16 static bool IsEnabled(JSContext* cx, JSObject* aGlobal)
michael@0 17 {
michael@0 18 // Make sure the global is a window
michael@0 19 nsGlobalWindow* win = xpc::WindowGlobalOrNull(aGlobal);
michael@0 20 if (!win) {
michael@0 21 return false;
michael@0 22 }
michael@0 23
michael@0 24 // Make sure that the principal is about:feeds.
michael@0 25 nsCOMPtr<nsIPrincipal> principal = win->GetPrincipal();
michael@0 26 NS_ENSURE_TRUE(principal, false);
michael@0 27 nsCOMPtr<nsIURI> uri;
michael@0 28 principal->GetURI(getter_AddRefs(uri));
michael@0 29 if (!uri) {
michael@0 30 return false;
michael@0 31 }
michael@0 32
michael@0 33 // First check the scheme to avoid getting long specs in the common case.
michael@0 34 bool isAbout = false;
michael@0 35 uri->SchemeIs("about", &isAbout);
michael@0 36 if (!isAbout) {
michael@0 37 return false;
michael@0 38 }
michael@0 39
michael@0 40 // Now check the spec itself
michael@0 41 nsAutoCString spec;
michael@0 42 uri->GetSpec(spec);
michael@0 43 return spec.Equals("about:feeds");
michael@0 44 }
michael@0 45 };
michael@0 46
michael@0 47 }

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