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Member "firefox-69.0.1/docshell/base/nsIWebNavigationInfo.idl" (17 Sep 2019, 2315 Bytes) of package /linux/www/firefox-69.0.1.source.tar.xz:
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1 /* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* This Source Code Form is subject to the terms of the Mozilla Public
3 * License, v. 2.0. If a copy of the MPL was not distributed with this
4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
6 #include "nsISupports.idl"
8 interface nsIWebNavigation;
11 * The nsIWebNavigationInfo interface exposes a way to get information
12 * on the capabilities of Gecko webnavigation objects.
14 [scriptable, uuid(62a93afb-93a1-465c-84c8-0432264229de)]
15 interface nsIWebNavigationInfo : nsISupports
18 * Returned by isTypeSupported to indicate lack of support for a type.
19 * @note this is guaranteed not to change, so that boolean tests can be done
20 * on the return value if isTypeSupported to detect whether a type is
21 * supported at all.
23 const unsigned long UNSUPPORTED = 0;
26 * Returned by isTypeSupported to indicate that a type is supported as an
27 * image.
29 const unsigned long IMAGE = 1;
32 * Returned by isTypeSupported to indicate that a type is supported via an
33 * NPAPI ("Netscape 4 API") plug-in. This is not the value returned for
34 * "XPCOM plug-ins".
36 const unsigned long PLUGIN = 2;
39 * @note Other return types may be added here in the future as they become
40 * relevant.
44 * Returned by isTypeSupported to indicate that a type is supported via some
45 * other means.
47 const unsigned long OTHER = 1 << 15;
50 * Query whether aType is supported.
51 * @param aType the MIME type in question.
52 * @param aWebNav the nsIWebNavigation object for which the request
53 * is being made. This is allowed to be null. If it is non-null,
54 * the return value of this method may depend on the exact state of
55 * aWebNav and the values set through nsIWebBrowserSetup; otherwise
56 * the method will assume that the caller is interested in information
57 * about nsIWebNavigation objects in their default state.
58 * @return an enum value indicating whether and how aType is supported.
59 * @note This method may rescan plugins to ensure that they're properly
60 * registered for the types they support.
62 unsigned long isTypeSupported(in ACString aType, in nsIWebNavigation aWebNav);