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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
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Add m-esr52 at 52.6.0
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+/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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 "nsISupports.idl"
+
+interface nsIWebNavigation;
+
+/**
+ * The nsIWebNavigationInfo interface exposes a way to get information
+ * on the capabilities of Gecko webnavigation objects.
+ */
+[scriptable, uuid(62a93afb-93a1-465c-84c8-0432264229de)]
+interface nsIWebNavigationInfo : nsISupports
+{
+ /**
+ * Returned by isTypeSupported to indicate lack of support for a type.
+ * @note this is guaranteed not to change, so that boolean tests can be done
+ * on the return value if isTypeSupported to detect whether a type is
+ * supported at all.
+ */
+ const unsigned long UNSUPPORTED = 0;
+
+ /**
+ * Returned by isTypeSupported to indicate that a type is supported as an
+ * image.
+ */
+ const unsigned long IMAGE = 1;
+
+ /**
+ * Returned by isTypeSupported to indicate that a type is supported via an
+ * NPAPI ("Netscape 4 API") plug-in. This is not the value returned for
+ * "XPCOM plug-ins".
+ */
+ const unsigned long PLUGIN = 2;
+
+ /**
+ * @note Other return types may be added here in the future as they become
+ * relevant.
+ */
+
+ /**
+ * Returned by isTypeSupported to indicate that a type is supported via some
+ * other means.
+ */
+ const unsigned long OTHER = 1 << 15;
+
+ /**
+ * Query whether aType is supported.
+ * @param aType the MIME type in question.
+ * @param aWebNav the nsIWebNavigation object for which the request
+ * is being made. This is allowed to be null. If it is non-null,
+ * the return value of this method may depend on the exact state of
+ * aWebNav and the values set through nsIWebBrowserSetup; otherwise
+ * the method will assume that the caller is interested in information
+ * about nsIWebNavigation objects in their default state.
+ * @return an enum value indicating whether and how aType is supported.
+ * @note This method may rescan plugins to ensure that they're properly
+ * registered for the types they support.
+ */
+ unsigned long isTypeSupported(in ACString aType, in nsIWebNavigation aWebNav);
+};