The Tor Browser: docshell/base/nsIWebNavigationInfo.idl@b8a032363ba2

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     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;

    10 /**

    11  * The nsIWebNavigationInfo interface exposes a way to get information

    12  * on the capabilities of Gecko webnavigation objects.

    13  */

    14 [scriptable, uuid(62a93afb-93a1-465c-84c8-0432264229de)]

    15 interface nsIWebNavigationInfo : nsISupports

    16 {

    17   /**

    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.

    22    */

    23   const unsigned long UNSUPPORTED = 0;

    25   /**

    26    * Returned by isTypeSupported to indicate that a type is supported as an

    27    * image.

    28    */

    29   const unsigned long IMAGE = 1;

    31   /**

    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".

    35    */

    36   const unsigned long PLUGIN = 2;

    38   /**

    39    * @note Other return types may be added here in the future as they become

    40    * relevant.

    41    */

    43   /**

    44    * Returned by isTypeSupported to indicate that a type is supported via some

    45    * other means.

    46    */

    47   const unsigned long OTHER = 1 << 15;

    49   /**

    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.

    61    */

    62   unsigned long isTypeSupported(in ACString aType, in nsIWebNavigation aWebNav);

    63 };

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