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Diffstat (limited to 'docshell/base/nsIWebNavigation.idl')
| -rw-r--r-- | docshell/base/nsIWebNavigation.idl | 386 |
1 files changed, 386 insertions, 0 deletions
diff --git a/docshell/base/nsIWebNavigation.idl b/docshell/base/nsIWebNavigation.idl new file mode 100644 index 0000000000..bec4f13d8b --- /dev/null +++ b/docshell/base/nsIWebNavigation.idl @@ -0,0 +1,386 @@ +/* -*- 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 nsIInputStream; +interface nsISHistory; +interface nsIURI; +interface nsIPrincipal; +interface nsIChildSHistory; +webidl Document; + +%{ C++ +#include "mozilla/dom/ChildSHistory.h" +namespace mozilla { +namespace dom { +struct LoadURIOptions; +} // namespace dom +} // namespace mozilla +%} + +[ref] native LoadURIOptionsRef(const mozilla::dom::LoadURIOptions); + +/** + * 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. + * + * Even though this is builtinclass, most of the interface is also implemented + * in RemoteWebNavigation, so if this interface changes, the implementation + * there may also need to change. + */ +[scriptable, builtinclass, 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. + * + * @param {boolean} aRequireUserInteraction + * Tells goBack to skip history items that did not record any user + * interaction on their corresponding document while they were active. + * This means in case of multiple entries mapping to the same document, + * each entry has to have been flagged with user interaction separately. + * If no items have user interaction, the function will fall back + * to the first session history entry. + * + * @param {boolean} aUserActivation + * Tells goBack that the call was triggered by a user action (e.g.: + * The user clicked the back button). + * + * @throw NS_ERROR_UNEXPECTED + * Indicates that the call was unexpected at this time, which implies + * that canGoBack is false. + */ + void goBack([optional] in boolean aRequireUserInteraction, [optional] in boolean aUserActivation); + + /** + * 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. + * + * @param {boolean} aRequireUserInteraction + * Tells goForward to skip history items that did not record any user + * interaction on their corresponding document while they were active. + * This means in case of multiple entries mapping to the same document, + * each entry has to have been flagged with user interaction separately. + * If no items have user interaction, the function will fall back + * to the latest session history entry. + * + * @param {boolean} aUserActivation + * Tells goForward that the call was triggered by a user action (e.g.: + * The user clicked the forward button). + * + * @throw NS_ERROR_UNEXPECTED + * Indicates that the call was unexpected at this time, which implies + * that canGoForward is false. + */ + void goForward([optional] in boolean aRequireUserInteraction, [optional] in boolean aUserActivation); + + /** + * Tells the object to navigate to the session history item at a given index. + * + * @param {boolean} aUserActivation + * Tells goForward that the call was triggered by a user action (e.g.: + * The user clicked the forward button). + * + * @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, [optional] in boolean aUserActivation); + + /**************************************************************************** + * 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 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. + */ + const unsigned long LOAD_FLAGS_DISALLOW_INHERIT_PRINCIPAL = 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; + + /** + * Allows a top-level data: navigation to occur. E.g. view-image + * is an explicit user action which should be allowed. + */ + const unsigned long LOAD_FLAGS_FORCE_ALLOW_DATA_URI = 0x400000; + + /** + * This load is the result of an HTTP redirect. + */ + const unsigned long LOAD_FLAGS_IS_REDIRECT = 0x800000; + + /** + * These flags force TRR modes 1 or 3 for the load. + */ + const unsigned long LOAD_FLAGS_DISABLE_TRR = 0x1000000; + const unsigned long LOAD_FLAGS_FORCE_TRR = 0x2000000; + + /** + * This load should bypass the LoadURIDelegate.loadUri. + */ + const unsigned long LOAD_FLAGS_BYPASS_LOAD_URI_DELEGATE = 0x4000000; + + /** + * This load has a user activation. (e.g: reload button was clicked) + */ + const unsigned long LOAD_FLAGS_USER_ACTIVATION = 0x8000000; + + /** + * 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 aLoadURIOptions + * A JSObject defined in LoadURIOptions.webidl holding info like e.g. + * the triggeringPrincipal, the referrer info. + */ + [implicit_jscontext, binaryname(LoadURIFromScript)] + void loadURI(in AString aURI, + in jsval aLoadURIOptions); + + /** + * A C++ friendly version of loadURI + */ + [nostdcall, binaryname(LoadURI)] + void binaryLoadURI(in AString aURI, + in LoadURIOptionsRef aLoadURIOptions); + + /** + * 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 Document document; + + /** + * The currently loaded URI or null. + */ + readonly attribute nsIURI currentURI; + + /** + * The session history object used by this web navigation instance. This + * object will be a mozilla::dom::ChildSHistory object, but is returned as + * nsISupports so it can be called from JS code. + */ + [binaryname(SessionHistoryXPCOM)] + readonly attribute nsISupports sessionHistory; + + %{ C++ + /** + * Get the session history object used by this nsIWebNavigation instance. + * Use this method instead of the XPCOM method when getting the + * SessionHistory from C++ code. + */ + already_AddRefed<mozilla::dom::ChildSHistory> + GetSessionHistory() + { + nsCOMPtr<nsISupports> history; + GetSessionHistoryXPCOM(getter_AddRefs(history)); + return history.forget() + .downcast<mozilla::dom::ChildSHistory>(); + } + %} + + /** + * Resume a load which has been redirected from another process. + * + * A negative |aHistoryIndex| value corresponds to a non-history load being + * resumed. + */ + void resumeRedirectedLoad(in unsigned long long aLoadIdentifier, + in long aHistoryIndex); +}; |