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+/* -*- Mode: IDL; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* 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 nsIUTF8StringEnumerator;
+interface nsIHandlerApp;
+interface nsIArray;
+interface nsIMutableArray;
+interface nsIInterfaceRequestor;
+
+typedef long nsHandlerInfoAction;
+
+/**
+ * nsIHandlerInfo gives access to the information about how a given protocol
+ * scheme or MIME-type is handled.
+ */
+[scriptable, uuid(325e56a7-3762-4312-aec7-f1fcf84b4145)]
+interface nsIHandlerInfo : nsISupports {
+ /**
+ * The type of this handler info. For MIME handlers, this is the MIME type.
+ * For protocol handlers, it's the scheme.
+ *
+ * @return String representing the type.
+ */
+ readonly attribute ACString type;
+
+ /**
+ * A human readable description of the handler type
+ */
+ attribute AString description;
+
+ /**
+ * The application the user has said they want associated with this content
+ * type. This is not always guaranteed to be set!!
+ */
+ attribute nsIHandlerApp preferredApplicationHandler;
+
+ /**
+ * Applications that can handle this content type.
+ *
+ * The list will include the preferred handler, if any. Elements of this
+ * array are nsIHandlerApp objects, and this attribute will always reference
+ * an array, whether or not there are any possible handlers. If there are
+ * no possible handlers, the array will contain no elements, so just check
+ * its length (nsIArray::length) to see if there are any possible handlers.
+ */
+ readonly attribute nsIMutableArray possibleApplicationHandlers;
+
+ /**
+ * Indicates whether a default application handler exists,
+ * i.e. whether launchWithFile with action = useSystemDefault is possible
+ * and defaultDescription will contain usable information.
+ */
+ readonly attribute boolean hasDefaultHandler;
+
+ /**
+ * A pretty name description of the associated default application. Only
+ * usable if hasDefaultHandler is true.
+ */
+ readonly attribute AString defaultDescription;
+
+ /**
+ * Launches the application with the specified URI, in a way that
+ * depends on the value of preferredAction. preferredAction must be
+ * useHelperApp or useSystemDefault.
+ *
+ * @note Only the URI scheme is used to determine how to launch. This is
+ * essentially a pass-by-value operation. This means that in the case of
+ * a file: URI, the handler that is registered for file: will be launched
+ * and our code will not make any decision based on the content-type or
+ * extension, though the invoked file: handler is free to do so.
+ *
+ * @param aURI
+ * The URI to launch this application with
+ *
+ * @param aWindowContext
+ * The window to parent the dialog against, and, if a web handler
+ * is chosen, it is loaded in this window as well. See
+ * nsIHandlerApp.launchWithURI for more details.
+ *
+ * @throw NS_ERROR_INVALID_ARG if preferredAction is not valid for this
+ * call. Other exceptions may be thrown.
+ */
+ void launchWithURI(in nsIURI aURI,
+ [optional] in nsIInterfaceRequestor aWindowContext);
+
+ /**
+ * preferredAction is how the user specified they would like to handle
+ * this content type: save to disk, use specified helper app, use OS
+ * default handler or handle using navigator; possible value constants
+ * listed below
+ */
+ attribute nsHandlerInfoAction preferredAction;
+
+ const long saveToDisk = 0;
+ /**
+ * Used to indicate that we know nothing about what to do with this. You
+ * could consider this to be not initialized.
+ */
+ const long alwaysAsk = 1;
+ const long useHelperApp = 2;
+ const long handleInternally = 3;
+ const long useSystemDefault = 4;
+
+ /**
+ * alwaysAskBeforeHandling: if true, we should always give the user a
+ * dialog asking how to dispose of this content.
+ */
+ attribute boolean alwaysAskBeforeHandling;
+};
+
+/**
+ * nsIMIMEInfo extends nsIHandlerInfo with a bunch of information specific to
+ * MIME content-types. There is a one-to-many relationship between MIME types
+ * and file extensions. This means that a MIMEInfo object may have multiple
+ * file extensions associated with it. However, the reverse is not true.
+ *
+ * MIMEInfo objects are generally retrieved from the MIME Service
+ * @see nsIMIMEService
+ */
+[scriptable, uuid(1c21acef-c7a1-40c6-9d40-a20480ee53a1)]
+interface nsIMIMEInfo : nsIHandlerInfo {
+ /**
+ * Gives you an array of file types associated with this type.
+ *
+ * @return Number of elements in the array.
+ * @return Array of extensions.
+ */
+ nsIUTF8StringEnumerator getFileExtensions();
+
+ /**
+ * Set File Extensions. Input is a comma delimited list of extensions.
+ */
+ void setFileExtensions(in AUTF8String aExtensions);
+
+ /**
+ * Returns whether or not the given extension is
+ * associated with this MIME info.
+ *
+ * @return TRUE if the association exists.
+ */
+ boolean extensionExists(in AUTF8String aExtension);
+
+ /**
+ * Append a given extension to the set of extensions
+ */
+ void appendExtension(in AUTF8String aExtension);
+
+ /**
+ * Returns the first extension association in
+ * the internal set of extensions.
+ *
+ * @return The first extension.
+ */
+ attribute AUTF8String primaryExtension;
+
+ /**
+ * The MIME type of this MIMEInfo.
+ *
+ * @return String representing the MIME type.
+ *
+ * @deprecated use nsIHandlerInfo::type instead.
+ */
+ readonly attribute ACString MIMEType;
+
+ /**
+ * Returns whether or not these two nsIMIMEInfos are logically
+ * equivalent.
+ *
+ * @returns PR_TRUE if the two are considered equal
+ */
+ boolean equals(in nsIMIMEInfo aMIMEInfo);
+
+ /**
+ * Returns a list of nsILocalHandlerApp objects containing
+ * handlers associated with this mimeinfo. Implemented per
+ * platform using information in this object to generate the
+ * best list. Typically used for an "open with" style user
+ * option.
+ *
+ * @return nsIArray of nsILocalHandlerApp
+ */
+ readonly attribute nsIArray possibleLocalHandlers;
+
+ /**
+ * Launches the application with the specified file, in a way that
+ * depends on the value of preferredAction. preferredAction must be
+ * useHelperApp or useSystemDefault.
+ *
+ * @param aFile The file to launch this application with.
+ *
+ * @throw NS_ERROR_INVALID_ARG if action is not valid for this function.
+ * Other exceptions may be thrown.
+ */
+ void launchWithFile(in nsIFile aFile);
+};
+
+/**
+ * nsIHandlerApp represents an external application that can handle content
+ * of some sort (either a MIME type or a protocol).
+ *
+ * FIXME: now that we've made nsIWebHandlerApp inherit from nsIHandlerApp,
+ * we should also try to make nsIWebContentHandlerInfo inherit from or possibly
+ * be replaced by nsIWebHandlerApp (bug 394710).
+ */
+[scriptable, uuid(8BDF20A4-9170-4548-AF52-78311A44F920)]
+interface nsIHandlerApp : nsISupports {
+
+ /**
+ * Human readable name for the handler
+ */
+ attribute AString name;
+
+ /**
+ * Detailed description for this handler. Suitable for
+ * a tooltip or short informative sentence.
+ */
+ attribute AString detailedDescription;
+
+ /**
+ * Whether or not the given handler app is logically equivalent to the
+ * invokant (i.e. they represent the same app).
+ *
+ * Two apps are the same if they are both either local or web handlers
+ * and their executables/URI templates and command line parameters are
+ * the same.
+ *
+ * @param aHandlerApp the handler app to compare to the invokant
+ *
+ * @returns true if the two are logically equivalent, false otherwise
+ */
+ boolean equals(in nsIHandlerApp aHandlerApp);
+
+ /**
+ * Launches the application with the specified URI.
+ *
+ * @param aURI
+ * The URI to launch this application with
+ *
+ * @param aWindowContext
+ *
+ * Currently only relevant to web-handler apps. If given, this
+ * represents the docshell to load the handler in and is passed
+ * through to nsIURILoader.openURI. If this parameter is null or
+ * not present, the web handler app implementation will attempt to
+ * find/create a place to load the handler and do so. As of this
+ * writing, it tries to load the web handler in a new window using
+ * nsIBrowserDOMWindow.openURI. In the future, it may attempt to
+ * have a more comprehensive strategy which could include handing
+ * off to the system default browser (bug 394479).
+ */
+ void launchWithURI(in nsIURI aURI,
+ [optional] in nsIInterfaceRequestor aWindowContext);
+
+};
+
+/**
+ * nsILocalHandlerApp is a local OS-level executable
+ */
+[scriptable, uuid(D36B6329-52AE-4f45-80F4-B2536AE5F8B2)]
+interface nsILocalHandlerApp : nsIHandlerApp {
+
+ /**
+ * Pointer to the executable file used to handle content
+ */
+ attribute nsIFile executable;
+
+ /**
+ * Returns the current number of command line parameters.
+ */
+ readonly attribute unsigned long parameterCount;
+
+ /**
+ * Clears the current list of command line parameters.
+ */
+ void clearParameters();
+
+ /**
+ * Appends a command line parameter to the command line
+ * parameter list.
+ *
+ * @param param the parameter to add.
+ */
+ void appendParameter(in AString param);
+
+ /**
+ * Retrieves a specific command line parameter.
+ *
+ * @param param the index of the parameter to return.
+ *
+ * @return the parameter string.
+ *
+ * @throw NS_ERROR_INVALID_ARG if the index is out of range.
+ */
+ AString getParameter(in unsigned long parameterIndex);
+
+ /**
+ * Checks to see if a parameter exists in the command line
+ * parameter list.
+ *
+ * @param param the parameter to search for.
+ *
+ * @return TRUE if the parameter exists in the current list.
+ */
+ boolean parameterExists(in AString param);
+};
+
+/**
+ * nsIWebHandlerApp is a web-based handler, as speced by the WhatWG HTML5
+ * draft. Currently, only GET-based handlers are supported. At some point,
+ * we probably want to work with WhatWG to spec out and implement POST-based
+ * handlers as well.
+ */
+[scriptable, uuid(7521a093-c498-45ce-b462-df7ba0d882f6)]
+interface nsIWebHandlerApp : nsIHandlerApp {
+
+ /**
+ * Template used to construct the URI to GET. Template is expected to have
+ * a %s in it, and the escaped URI to be handled is inserted in place of
+ * that %s, as per the HTML5 spec.
+ */
+ attribute AUTF8String uriTemplate;
+};
+
+/**
+ * nsIDBusHandlerApp represents local applications launched by DBus a message
+ * invoking a method taking a single string argument descibing a URI
+ */
+[scriptable, uuid(1ffc274b-4cbf-4bb5-a635-05ad2cbb6534)]
+interface nsIDBusHandlerApp : nsIHandlerApp {
+
+ /**
+ * Service defines the dbus service that should handle this protocol.
+ * If its not set, NS_ERROR_FAILURE will be returned by LaunchWithURI
+ */
+ attribute AUTF8String service;
+
+ /**
+ * Objpath defines the object path of the dbus service that should handle
+ * this protocol. If its not set, NS_ERROR_FAILURE will be returned
+ * by LaunchWithURI
+ */
+ attribute AUTF8String objectPath;
+
+ /**
+ * DBusInterface defines the interface of the dbus service that should
+ * handle this protocol. If its not set, NS_ERROR_FAILURE will be
+ * returned by LaunchWithURI
+ */
+ attribute AUTF8String dBusInterface;
+
+ /**
+ * Method defines the dbus method that should be invoked to handle this
+ * protocol. If its not set, NS_ERROR_FAILURE will be returned by
+ * LaunchWithURI
+ */
+ attribute AUTF8String method;
+
+};
+