mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-12-04 11:26:09 +00:00
105 lines
4.9 KiB
Plaintext
105 lines
4.9 KiB
Plaintext
/* -*- Mode: C++; tab-width: 2; 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"
|
|
|
|
/* nsINativeAppSupport
|
|
*
|
|
* This "pseudo" (in the XPCOM sense) interface provides for
|
|
* platform-specific general application support:
|
|
* o It manages the details of the simple DDE communication
|
|
* supported on the Win32 platform (it is the addition of this
|
|
* item that prompted the creation of this interface.
|
|
*
|
|
* Due to the nature of the beast, this interface is not a full-blown
|
|
* XPCOM component. The primary reason is that objects that implement
|
|
* this interface generally must be operational *before* XPCOM (or any
|
|
* of the rest of Mozilla) are initialized. As a result, this
|
|
* interface is instantiated by somewhat unconventional means.
|
|
*
|
|
* To create the implementor of this interface, you call the function
|
|
* NS_CreateNativeAppSupport. This is done in the startup code
|
|
* in nsAppRunner.cpp
|
|
*
|
|
* The interface provides these functions:
|
|
* start - You call this to inform the native app support that the
|
|
* application is starting. In addition, it serves as a
|
|
* query as to whether the application should continue to
|
|
* run.
|
|
*
|
|
* If the returned boolean result is PR_FALSE, then the
|
|
* application should exit without further processing. In
|
|
* such cases, the returned nsresult indicates whether the
|
|
* reason to exit is due to an error or not.
|
|
*
|
|
* Win32 Note: In the case of starting a second instance
|
|
* of this executable, this function will return
|
|
* PR_FALSE and nsresult==NS_OK. This means that
|
|
* the command line arguments have been
|
|
* successfully passed to the instance of the
|
|
* application acting as a DDE server.
|
|
*
|
|
* stop - You call this to inform the native app support that the
|
|
* application *wishes* to terminate. If the returned boolean
|
|
* value is PR_FALSE, then the application should continue
|
|
* (as if there were still additional top-level windows open).
|
|
*
|
|
* Win32 Note: If this is the instance of the application
|
|
* acting as the DDE server, and there are current
|
|
* DDE conversations active with other instances
|
|
* acting as DDE clients, then this function will
|
|
* return PR_FALSE.
|
|
*
|
|
* quit - Like Stop, but this method *forces* termination (or more
|
|
* precisely, indicates that the application is about to be
|
|
* terminated regardless of what a call to Stop might have
|
|
* returned.
|
|
*
|
|
* This method is intended to be called when the user selects
|
|
* the "Quit" option (close all windows and exit).
|
|
*
|
|
* Win32 Note: Stop is problematic in the case of "Quit" (close
|
|
* all windows and exit the application) because
|
|
* either we don't Quit or (potentially) we lose
|
|
* requests coming from other instances of the
|
|
* application. The strategy is to give preference
|
|
* to the user's explicit Quit request. In the
|
|
* unlikely event that a request is pending from
|
|
* another instance of the application, then such
|
|
* requests are essentially ignored. This is
|
|
* roughly equivalent to handling that request by
|
|
* opening a new window, followed by immediately
|
|
* closing it. Since this is the same as if the
|
|
* request came in immediately before the Quit
|
|
* call (versus immediately after it), no harm.
|
|
*
|
|
* There is an exposure here: Upon return from this
|
|
* function, any DDE connect request (for Mozilla)
|
|
* will fail and other instances of the application
|
|
* will start up as a DDE server. In that case,
|
|
* those instances may do things that conflict with
|
|
* the subsequent shutting down of the instance that
|
|
* is quitting. For this reason, the call to Quit
|
|
* should be deferred as long as possible.
|
|
*
|
|
* onLastWindowClosing - Called when the last window is closed. Used as a
|
|
* "soft" shutdown, passwords are flushed.
|
|
*/
|
|
|
|
interface nsIXULWindow;
|
|
interface nsICmdLineService;
|
|
|
|
[scriptable, uuid(5fdf8480-1f98-11d4-8077-00600811a9c3)]
|
|
interface nsINativeAppSupport : nsISupports {
|
|
// Startup/shutdown.
|
|
boolean start();
|
|
void enable();
|
|
boolean stop();
|
|
void quit();
|
|
|
|
void onLastWindowClosing();
|
|
void ReOpen();
|
|
};
|