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+/* -*- 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 "nsICancelable.idl"
+
+interface nsIURI;
+interface nsIChannel;
+interface nsIStreamListener;
+interface nsIFile;
+interface nsIMIMEInfo;
+interface nsIWebProgressListener2;
+interface nsIInterfaceRequestor;
+webidl BrowsingContext;
+
+/**
+ * The external helper app service is used for finding and launching
+ * platform specific external applications for a given mime content type.
+ */
+[scriptable, uuid(1E4F3AE1-B737-431F-A95D-31FA8DA70199)]
+interface nsIExternalHelperAppService : nsISupports
+{
+ /**
+ * Binds an external helper application to a stream listener. The caller
+ * should pump data into the returned stream listener. When the OnStopRequest
+ * is issued, the stream listener implementation will launch the helper app
+ * with this data.
+ * @param aMimeContentType The content type of the incoming data
+ * @param aChannel The channel corresponding to the incoming data
+ * @param aContentContext Used in processing content document refresh
+ * headers after target content is downloaded.
+ * @param aForceSave True to always save this content to disk, regardless of
+ * nsIMIMEInfo and other such influences.
+ * @param aWindowContext Used in parenting helper app dialogs, usually
+ * points to the parent browser window. This parameter may be null,
+ * in which case dialogs will be parented to aContentContext.
+ * @return A nsIStreamListener which the caller should pump the data into.
+ */
+ nsIStreamListener doContent (in ACString aMimeContentType,
+ in nsIChannel aChannel,
+ in nsIInterfaceRequestor aContentContext,
+ in boolean aForceSave,
+ [optional] in nsIInterfaceRequestor aWindowContext);
+
+ /**
+ * Binds an external helper application to a stream listener. The caller
+ * should pump data into the returned stream listener. When the OnStopRequest
+ * is issued, the stream listener implementation will launch the helper app
+ * with this data.
+ * Replaces doContent for native code, and uses BrowsingContext.
+ *
+ * @param aMimeContentType The content type of the incoming data
+ * @param aChannel The channel corresponding to the incoming data
+ * @param aContentContext The BrowsingContext that the channel was initiated
+ * by. Used for closing the window if we opened one specifically for this download.
+ * @param aForceSave True to always save this content to disk, regardless of
+ * nsIMIMEInfo and other such influences.
+ * @param aWindowContext Used in parenting helper app dialogs, usually
+ * points to the parent browser window. This parameter may be null,
+ * in which case dialogs will be parented to aContentContext.
+ * @return A nsIStreamListener which the caller should pump the data into.
+ */
+ nsIStreamListener createListener (in ACString aMimeContentType,
+ in nsIChannel aChannel,
+ in BrowsingContext aContentContext,
+ in boolean aForceSave,
+ [optional] in nsIInterfaceRequestor aWindowContext);
+
+ /**
+ * Returns true if data from a URL with this extension combination
+ * is to be decoded from aEncodingType prior to saving or passing
+ * off to helper apps, false otherwise.
+ */
+ boolean applyDecodingForExtension(in AUTF8String aExtension,
+ in ACString aEncodingType);
+
+};
+
+/**
+ * This is a private interface shared between external app handlers and the platform specific
+ * external helper app service
+ */
+[scriptable, uuid(6613e2e7-feab-4e3a-bb1f-b03200d544ec)]
+interface nsPIExternalAppLauncher : nsISupports
+{
+ /**
+ * mscott --> eventually I should move this into a new service so other
+ * consumers can add temporary files they want deleted on exit.
+ * @param aTemporaryFile A temporary file we should delete on exit.
+ */
+ void deleteTemporaryFileOnExit(in nsIFile aTemporaryFile);
+ /**
+ * Delete a temporary file created inside private browsing mode when
+ * the private browsing mode has ended.
+ */
+ void deleteTemporaryPrivateFileWhenPossible(in nsIFile aTemporaryFile);
+};
+
+/**
+ * A helper app launcher is a small object created to handle the launching
+ * of an external application.
+ *
+ * Note that cancelling the load via the nsICancelable interface will release
+ * the reference to the launcher dialog.
+ */
+[scriptable, uuid(acf2a516-7d7f-4771-8b22-6c4a559c088e)]
+interface nsIHelperAppLauncher : nsICancelable
+{
+ /**
+ * The mime info object associated with the content type this helper app
+ * launcher is currently attempting to load
+ */
+ readonly attribute nsIMIMEInfo MIMEInfo;
+
+ /**
+ * The source uri
+ */
+ readonly attribute nsIURI source;
+
+ /**
+ * The suggested name for this file
+ */
+ readonly attribute AString suggestedFileName;
+
+ /**
+ * Saves the final destination of the file.
+ * NOTE: This will release the reference to the nsIHelperAppLauncherDialog.
+ */
+ void promptForSaveDestination();
+
+ /**
+ * Tell the launcher that we will want to open the file.
+ * NOTE: This will release the reference to the nsIHelperAppLauncherDialog.
+ * @param aHandleInternally TRUE if we should handle opening this internally.
+ * @param aNewFileLocation a preferred location choosen through the File Picker.
+ * Null if going through the fast save without File Picker.
+ */
+ void setDownloadToLaunch(in boolean aHandleInternally, in nsIFile aFile);
+
+
+ /**
+ * Use the MIMEInfo associated with us to open a file that is already local.
+ * Will no-op if `source` is not a local file.
+ */
+ void launchLocalFile();
+
+ /**
+ * Callback invoked by nsIHelperAppLauncherDialog::promptForSaveToFileAsync
+ * after the user has chosen a file through the File Picker (or dismissed it).
+ * @param aFile The file that was chosen by the user (or null if dialog was dismissed).
+ * @param aDialogWasShown Optional boolean - false by default. Pass true if a
+ * dialog was opened in the process of reaching this file result. If true, we
+ * suppress the opening of the downloads panel to avoid redundancy.
+ */
+ void saveDestinationAvailable(in nsIFile aFile, [optional] in boolean aDialogWasShown);
+
+ /**
+ * The following methods are used by the progress dialog to get or set
+ * information on the current helper app launcher download.
+ * This reference will be released when the download is finished (after the
+ * listener receives the STATE_STOP notification).
+ */
+ void setWebProgressListener(in nsIWebProgressListener2 aWebProgressListener);
+
+ /**
+ * The file we are saving to
+ */
+ readonly attribute nsIFile targetFile;
+
+ /**
+ * The executable-ness of the target file
+ */
+ readonly attribute boolean targetFileIsExecutable;
+
+ /**
+ * Time when the download started
+ */
+ readonly attribute PRTime timeDownloadStarted;
+
+ /**
+ * The download content length, or -1 if the length is not available.
+ */
+ readonly attribute int64_t contentLength;
+
+ /**
+ * The browsingContext ID of the launcher's source
+ */
+ readonly attribute uint64_t browsingContextId;
+};