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Diffstat (limited to 'uriloader/exthandler/nsIExternalProtocolService.idl')
| -rw-r--r-- | uriloader/exthandler/nsIExternalProtocolService.idl | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/uriloader/exthandler/nsIExternalProtocolService.idl b/uriloader/exthandler/nsIExternalProtocolService.idl new file mode 100644 index 000000000..44d756030 --- /dev/null +++ b/uriloader/exthandler/nsIExternalProtocolService.idl @@ -0,0 +1,135 @@ +/* -*- Mode: C++; tab-width: 3; 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 nsIURI; +interface nsIFile; +interface nsIInterfaceRequestor; +interface nsIHandlerInfo; + +/** + * The external protocol service is used for finding and launching + * web handlers (a la registerProtocolHandler in the HTML5 draft) or + * platform-specific applications for handling particular protocols. + * + * You can ask the external protocol service if it has an external + * handler for a given protocol scheme. And you can ask it to load + * the url using the default handler. + */ +[scriptable, uuid(70f93b7a-3ec6-4bcb-b093-92d9984c9f83)] +interface nsIExternalProtocolService : nsISupports +{ + /** + * Check whether a handler for a specific protocol exists. Specifically, + * this looks to see whether there are any known possible application handlers + * in either the nsIHandlerService datastore or registered with the OS. + * + * @param aProtocolScheme The scheme from a url: http, ftp, mailto, etc. + * + * @return true if we have a handler and false otherwise. + * + * XXX shouldn't aProtocolScheme be an ACString like nsIURI::scheme? + */ + boolean externalProtocolHandlerExists(in string aProtocolScheme); + + /** + * Check whether a handler for a specific protocol is "exposed" as a visible + * feature of the current application. + * + * An exposed protocol handler is one that can be used in all contexts. A + * non-exposed protocol handler is one that can only be used internally by the + * application. For example, a non-exposed protocol would not be loaded by the + * application in response to a link click or a X-remote openURL command. + * Instead, it would be deferred to the system's external protocol handler. + * XXX shouldn't aProtocolScheme be an ACString like nsIURI::scheme? + */ + boolean isExposedProtocol(in string aProtocolScheme); + + /** + * Retrieve the handler for the given protocol. If neither the application + * nor the OS knows about a handler for the protocol, the object this method + * returns will represent a default handler for unknown content. + * + * @param aProtocolScheme the scheme from a URL: http, ftp, mailto, etc. + * + * Note: aProtocolScheme should not include a trailing colon, which is part + * of the URI syntax, not part of the scheme itself (i.e. pass "mailto" not + * "mailto:"). + * + * @return the handler, if any; otherwise a default handler + */ + nsIHandlerInfo getProtocolHandlerInfo(in ACString aProtocolScheme); + + /** + * Given a scheme, looks up the protocol info from the OS. This should be + * overridden by each OS's implementation. + * + * @param aScheme The protocol scheme we are looking for. + * @param aFound Was an OS default handler for this scheme found? + * @return An nsIHanderInfo for the protocol. + */ + nsIHandlerInfo getProtocolHandlerInfoFromOS(in ACString aProtocolScheme, + out boolean aFound); + + /** + * Set some sane defaults for a protocol handler object. + * + * @param aHandlerInfo nsIHandlerInfo object, as returned by + * getProtocolHandlerInfoFromOS + * @param aOSHandlerExists was the object above created for an extant + * OS default handler? This is generally the + * value of the aFound out param from + * getProtocolHandlerInfoFromOS. + */ + void setProtocolHandlerDefaults(in nsIHandlerInfo aHandlerInfo, + in boolean aOSHandlerExists); + + /** + * Used to load a url via an external protocol handler (if one exists) + * + * @param aURL The url to load + * + * @deprecated Use LoadURI instead (See Bug 389565 for removal) + */ + [deprecated] void loadUrl(in nsIURI aURL); + + /** + * Used to load a URI via an external application. Might prompt the user for + * permission to load the external application. + * + * @param aURI + * The URI to load + * + * @param aWindowContext + * The window to parent the dialog against, and, if a web handler + * is chosen, it is loaded in this window as well. This parameter + * may be ultimately passed nsIURILoader.openURI in the case of a + * web handler, and aWindowContext is null or not present, web + * handlers will fail. We need to do better than that; bug 394483 + * filed in order to track. + * + * @note Embedders that do not expose the http protocol should not currently + * use web-based protocol handlers, as handoff won't work correctly + * (bug 394479). + */ + void loadURI(in nsIURI aURI, + [optional] in nsIInterfaceRequestor aWindowContext); + + /** + * Gets a human-readable description for the application responsible for + * handling a specific protocol. + * + * @param aScheme The scheme to look up. For example, "mms". + * + * @throw NS_ERROR_NOT_IMPLEMENTED + * If getting descriptions for protocol helpers is not supported + * @throw NS_ERROR_NOT_AVAILABLE + * If no protocol helper exists for this scheme, or if it is not + * possible to get a description for it. + */ + AString getApplicationDescription(in AUTF8String aScheme); +}; |