From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 02:47:55 +0200 Subject: Adding upstream version 124.0.1. Signed-off-by: Daniel Baumann --- widget/nsIAppShell.idl | 71 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 71 insertions(+) create mode 100644 widget/nsIAppShell.idl (limited to 'widget/nsIAppShell.idl') diff --git a/widget/nsIAppShell.idl b/widget/nsIAppShell.idl new file mode 100644 index 0000000000..f2ea8ab166 --- /dev/null +++ b/widget/nsIAppShell.idl @@ -0,0 +1,71 @@ +/* -*- 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" + +interface nsIRunnable; +%{ C++ +template struct already_AddRefed; + +/** + * After the default timezone changes, this topic is notified. Some systems may + * not support monitoring timezone. + */ +#define DEFAULT_TIMEZONE_CHANGED_OBSERVER_TOPIC "default-timezone-changed" +%} + +/** + * Interface for the native event system layer. This interface is designed + * to be used on the main application thread only. + */ +[uuid(7cd5c71d-223b-4afe-931d-5eedb1f2b01f)] +interface nsIAppShell : nsISupports +{ + /** + * Enter an event loop. Don't leave until exit() is called. + */ + void run(); + + /** + * Exit the handle event loop + */ + void exit(); + + /** + * Ask the native event queue notification mechanism to favor Gecko tasks + * (instead of native tasks) for a short while. (Content processes always + * favor Gecko tasks.) + */ + void geckoTaskBurst(); + + /** + * Suspends the use of additional platform-specific methods (besides the + * nsIAppShell->run() event loop) to run Gecko events on the main + * application thread. Under some circumstances these "additional methods" + * can cause Gecko event handlers to be re-entered, sometimes leading to + * hangs and crashes. Calls to suspendNative() and resumeNative() may be + * nested. On some platforms (those that don't use any "additional + * methods") this will be a no-op. Does not (in itself) stop Gecko events + * from being processed on the main application thread. But if the + * nsIAppShell->run() event loop is blocked when this call is made, Gecko + * events will stop being processed until resumeNative() is called (even + * if a plugin or library is temporarily processing events on a nested + * event loop). + */ + void suspendNative(); + + /** + * Resumes the use of additional platform-specific methods to run Gecko + * events on the main application thread. Calls to suspendNative() and + * resumeNative() may be nested. On some platforms this will be a no-op. + */ + void resumeNative(); + + /** + * The current event loop nesting level. + */ + readonly attribute unsigned long eventloopNestingLevel; +}; -- cgit v1.2.3