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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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+/* -*- Mode: IDL; tab-width: 4; 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 nsIDOMDocument;
+interface nsIInputStream;
+interface nsISHistory;
+interface nsIURI;
+
+/**
+ * The nsIWebNavigation interface defines an interface for navigating the web.
+ * It provides methods and attributes to direct an object to navigate to a new
+ * location, stop or restart an in process load, or determine where the object
+ * has previously gone.
+ */
+[scriptable, uuid(3ade79d4-8cb9-4952-b18d-4f9b63ca0d31)]
+interface nsIWebNavigation : nsISupports
+{
+ /**
+ * Indicates if the object can go back. If true this indicates that
+ * there is back session history available for navigation.
+ */
+ readonly attribute boolean canGoBack;
+
+ /**
+ * Indicates if the object can go forward. If true this indicates that
+ * there is forward session history available for navigation
+ */
+ readonly attribute boolean canGoForward;
+
+ /**
+ * Tells the object to navigate to the previous session history item. When a
+ * page is loaded from session history, all content is loaded from the cache
+ * (if available) and page state (such as form values and scroll position) is
+ * restored.
+ *
+ * @throw NS_ERROR_UNEXPECTED
+ * Indicates that the call was unexpected at this time, which implies
+ * that canGoBack is false.
+ */
+ void goBack();
+
+ /**
+ * Tells the object to navigate to the next session history item. When a
+ * page is loaded from session history, all content is loaded from the cache
+ * (if available) and page state (such as form values and scroll position) is
+ * restored.
+ *
+ * @throw NS_ERROR_UNEXPECTED
+ * Indicates that the call was unexpected at this time, which implies
+ * that canGoForward is false.
+ */
+ void goForward();
+
+ /**
+ * Tells the object to navigate to the session history item at a given index.
+ *
+ * @throw NS_ERROR_UNEXPECTED
+ * Indicates that the call was unexpected at this time, which implies
+ * that session history entry at the given index does not exist.
+ */
+ void gotoIndex(in long index);
+
+ /****************************************************************************
+ * The following flags may be bitwise combined to form the load flags
+ * parameter passed to either the loadURI or reload method. Some of these
+ * flags are only applicable to loadURI.
+ */
+
+ /**
+ * This flags defines the range of bits that may be specified. Flags
+ * outside this range may be used, but may not be passed to Reload().
+ */
+ const unsigned long LOAD_FLAGS_MASK = 0xffff;
+
+ /**
+ * This is the default value for the load flags parameter.
+ */
+ const unsigned long LOAD_FLAGS_NONE = 0x0000;
+
+ /**
+ * Flags 0x1, 0x2, 0x4, 0x8 are reserved for internal use by
+ * nsIWebNavigation implementations for now.
+ */
+
+ /**
+ * This flag specifies that the load should have the semantics of an HTML
+ * Meta-refresh tag (i.e., that the cache should be bypassed). This flag
+ * is only applicable to loadURI.
+ * XXX the meaning of this flag is poorly defined.
+ * XXX no one uses this, so we should probably deprecate and remove it.
+ */
+ const unsigned long LOAD_FLAGS_IS_REFRESH = 0x0010;
+
+ /**
+ * This flag specifies that the load should have the semantics of a link
+ * click. This flag is only applicable to loadURI.
+ * XXX the meaning of this flag is poorly defined.
+ */
+ const unsigned long LOAD_FLAGS_IS_LINK = 0x0020;
+
+ /**
+ * This flag specifies that history should not be updated. This flag is only
+ * applicable to loadURI.
+ */
+ const unsigned long LOAD_FLAGS_BYPASS_HISTORY = 0x0040;
+
+ /**
+ * This flag specifies that any existing history entry should be replaced.
+ * This flag is only applicable to loadURI.
+ */
+ const unsigned long LOAD_FLAGS_REPLACE_HISTORY = 0x0080;
+
+ /**
+ * This flag specifies that the local web cache should be bypassed, but an
+ * intermediate proxy cache could still be used to satisfy the load.
+ */
+ const unsigned long LOAD_FLAGS_BYPASS_CACHE = 0x0100;
+
+ /**
+ * This flag specifies that any intermediate proxy caches should be bypassed
+ * (i.e., that the content should be loaded from the origin server).
+ */
+ const unsigned long LOAD_FLAGS_BYPASS_PROXY = 0x0200;
+
+ /**
+ * This flag specifies that a reload was triggered as a result of detecting
+ * an incorrect character encoding while parsing a previously loaded
+ * document.
+ */
+ const unsigned long LOAD_FLAGS_CHARSET_CHANGE = 0x0400;
+
+ /**
+ * If this flag is set, Stop() will be called before the load starts
+ * and will stop both content and network activity (the default is to
+ * only stop network activity). Effectively, this passes the
+ * STOP_CONTENT flag to Stop(), in addition to the STOP_NETWORK flag.
+ */
+ const unsigned long LOAD_FLAGS_STOP_CONTENT = 0x0800;
+
+ /**
+ * A hint this load was prompted by an external program: take care!
+ */
+ const unsigned long LOAD_FLAGS_FROM_EXTERNAL = 0x1000;
+
+ /**
+ This flag is set when a user explicitly disables the Mixed Content
+ Blocker, and allows Mixed Content to load on an https page.
+ */
+ const unsigned long LOAD_FLAGS_ALLOW_MIXED_CONTENT = 0x2000;
+
+ /**
+ * This flag specifies that this is the first load in this object.
+ * Set with care, since setting incorrectly can cause us to assume that
+ * nothing was actually loaded in this object if the load ends up being
+ * handled by an external application. This flag must not be passed to
+ * Reload.
+ */
+ const unsigned long LOAD_FLAGS_FIRST_LOAD = 0x4000;
+
+ /**
+ * This flag specifies that the load should not be subject to popup
+ * blocking checks. This flag must not be passed to Reload.
+ */
+ const unsigned long LOAD_FLAGS_ALLOW_POPUPS = 0x8000;
+
+ /**
+ * This flag specifies that the URI classifier should not be checked for
+ * this load. This flag must not be passed to Reload.
+ */
+ const unsigned long LOAD_FLAGS_BYPASS_CLASSIFIER = 0x10000;
+
+ /**
+ * Force relevant cookies to be sent with this load even if normally they
+ * wouldn't be.
+ */
+ const unsigned long LOAD_FLAGS_FORCE_ALLOW_COOKIES = 0x20000;
+
+ /**
+ * Prevent the owner principal from being inherited for this load.
+ * Note: Within Gecko we use the term principal rather than owners
+ * but some legacy addons might still rely on the outdated term.
+ */
+ const unsigned long LOAD_FLAGS_DISALLOW_INHERIT_PRINCIPAL = 0x40000;
+ const unsigned long LOAD_FLAGS_DISALLOW_INHERIT_OWNER = 0x40000;
+
+ /**
+ * Overwrite the returned error code with a specific result code
+ * when an error page is displayed.
+ */
+ const unsigned long LOAD_FLAGS_ERROR_LOAD_CHANGES_RV = 0x80000;
+
+ /**
+ * This flag specifies that the URI may be submitted to a third-party
+ * server for correction. This should only be applied to non-sensitive
+ * URIs entered by users. This flag must not be passed to Reload.
+ */
+ const unsigned long LOAD_FLAGS_ALLOW_THIRD_PARTY_FIXUP = 0x100000;
+
+ /**
+ * This flag specifies that common scheme typos should be corrected.
+ */
+ const unsigned long LOAD_FLAGS_FIXUP_SCHEME_TYPOS = 0x200000;
+
+ /**
+ * Loads a given URI. This will give priority to loading the requested URI
+ * in the object implementing this interface. If it can't be loaded here
+ * however, the URI dispatcher will go through its normal process of content
+ * loading.
+ *
+ * @param aURI
+ * The URI string to load. For HTTP and FTP URLs and possibly others,
+ * characters above U+007F will be converted to UTF-8 and then URL-
+ * escaped per the rules of RFC 2396.
+ * @param aLoadFlags
+ * Flags modifying load behaviour. This parameter is a bitwise
+ * combination of the load flags defined above. (Undefined bits are
+ * reserved for future use.) Generally you will pass LOAD_FLAGS_NONE
+ * for this parameter.
+ * @param aReferrer
+ * The referring URI. If this argument is null, then the referring
+ * URI will be inferred internally.
+ * @param aPostData
+ * If the URI corresponds to a HTTP request, then this stream is
+ * appended directly to the HTTP request headers. It may be prefixed
+ * with additional HTTP headers. This stream must contain a "\r\n"
+ * sequence separating any HTTP headers from the HTTP request body.
+ * This parameter is optional and may be null.
+ * @param aHeaders
+ * If the URI corresponds to a HTTP request, then any HTTP headers
+ * contained in this stream are set on the HTTP request. The HTTP
+ * header stream is formatted as:
+ * ( HEADER "\r\n" )*
+ * This parameter is optional and may be null.
+ */
+ void loadURI(in wstring aURI,
+ in unsigned long aLoadFlags,
+ in nsIURI aReferrer,
+ in nsIInputStream aPostData,
+ in nsIInputStream aHeaders);
+
+ /**
+ * Loads a given URI. This will give priority to loading the requested URI
+ * in the object implementing this interface. If it can't be loaded here
+ * however, the URI dispatcher will go through its normal process of content
+ * loading.
+ *
+ * Behaves like loadURI, but allows passing of additional parameters.
+ *
+ * @param aURI
+ * The URI string to load. For HTTP and FTP URLs and possibly others,
+ * characters above U+007F will be converted to UTF-8 and then URL-
+ * escaped per the rules of RFC 2396.
+ * @param aLoadFlags
+ * Flags modifying load behaviour. This parameter is a bitwise
+ * combination of the load flags defined above. (Undefined bits are
+ * reserved for future use.) Generally you will pass LOAD_FLAGS_NONE
+ * for this parameter.
+ * @param aReferrer
+ * The referring URI. If this argument is null, then the referring
+ * URI will be inferred internally.
+ * @param aReferrerPolicy
+ * One of the REFERRER_POLICY_* constants from nsIHttpChannel.
+ * Normal case is REFERRER_POLICY_DEFAULT.
+ * @param aPostData
+ * If the URI corresponds to a HTTP request, then this stream is
+ * appended directly to the HTTP request headers. It may be prefixed
+ * with additional HTTP headers. This stream must contain a "\r\n"
+ * sequence separating any HTTP headers from the HTTP request body.
+ * This parameter is optional and may be null.
+ * @param aHeaders
+ * If the URI corresponds to a HTTP request, then any HTTP headers
+ * contained in this stream are set on the HTTP request. The HTTP
+ * header stream is formatted as:
+ * ( HEADER "\r\n" )*
+ * This parameter is optional and may be null.
+ * @param aBaseURI
+ * Set to indicate a base URI to be associated with the load. Note
+ * that at present this argument is only used with view-source aURIs
+ * and cannot be used to resolve aURI.
+ * This parameter is optional and may be null.
+ */
+ void loadURIWithOptions(in wstring aURI,
+ in unsigned long aLoadFlags,
+ in nsIURI aReferrer,
+ in unsigned long aReferrerPolicy,
+ in nsIInputStream aPostData,
+ in nsIInputStream aHeaders,
+ in nsIURI aBaseURI);
+
+ /**
+ * Tells the Object to reload the current page. There may be cases where the
+ * user will be asked to confirm the reload (for example, when it is
+ * determined that the request is non-idempotent).
+ *
+ * @param aReloadFlags
+ * Flags modifying load behaviour. This parameter is a bitwise
+ * combination of the Load Flags defined above. (Undefined bits are
+ * reserved for future use.) Generally you will pass LOAD_FLAGS_NONE
+ * for this parameter.
+ *
+ * @throw NS_BINDING_ABORTED
+ * Indicating that the user canceled the reload.
+ */
+ void reload(in unsigned long aReloadFlags);
+
+ /****************************************************************************
+ * The following flags may be passed as the stop flags parameter to the stop
+ * method defined on this interface.
+ */
+
+ /**
+ * This flag specifies that all network activity should be stopped. This
+ * includes both active network loads and pending META-refreshes.
+ */
+ const unsigned long STOP_NETWORK = 0x01;
+
+ /**
+ * This flag specifies that all content activity should be stopped. This
+ * includes animated images, plugins and pending Javascript timeouts.
+ */
+ const unsigned long STOP_CONTENT = 0x02;
+
+ /**
+ * This flag specifies that all activity should be stopped.
+ */
+ const unsigned long STOP_ALL = 0x03;
+
+ /**
+ * Stops a load of a URI.
+ *
+ * @param aStopFlags
+ * This parameter is one of the stop flags defined above.
+ */
+ void stop(in unsigned long aStopFlags);
+
+ /**
+ * Retrieves the current DOM document for the frame, or lazily creates a
+ * blank document if there is none. This attribute never returns null except
+ * for unexpected error situations.
+ */
+ readonly attribute nsIDOMDocument document;
+
+ /**
+ * The currently loaded URI or null.
+ */
+ readonly attribute nsIURI currentURI;
+
+ /**
+ * The referring URI for the currently loaded URI or null.
+ */
+ readonly attribute nsIURI referringURI;
+
+ /**
+ * The session history object used by this web navigation instance.
+ */
+ attribute nsISHistory sessionHistory;
+
+ /**
+ * Set an OriginAttributes dictionary in the docShell. This can be done only
+ * before loading any content.
+ */
+ void setOriginAttributesBeforeLoading(in jsval originAttributes);
+};