From 5f8de423f190bbb79a62f804151bc24824fa32d8 Mon Sep 17 00:00:00 2001 From: "Matt A. Tobin" Date: Fri, 2 Feb 2018 04:16:08 -0500 Subject: Add m-esr52 at 52.6.0 --- docshell/base/nsIScrollObserver.h | 42 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 docshell/base/nsIScrollObserver.h (limited to 'docshell/base/nsIScrollObserver.h') diff --git a/docshell/base/nsIScrollObserver.h b/docshell/base/nsIScrollObserver.h new file mode 100644 index 000000000..82c7cabe9 --- /dev/null +++ b/docshell/base/nsIScrollObserver.h @@ -0,0 +1,42 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* 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/. */ + +#ifndef nsIScrollObserver_h___ +#define nsIScrollObserver_h___ + +#include "nsISupports.h" +#include "Units.h" + +#define NS_ISCROLLOBSERVER_IID \ + { 0xaa5026eb, 0x2f88, 0x4026, \ + { 0xa4, 0x6b, 0xf4, 0x59, 0x6b, 0x4e, 0xdf, 0x00 } } + +class nsIScrollObserver : public nsISupports +{ +public: + NS_DECLARE_STATIC_IID_ACCESSOR(NS_ISCROLLOBSERVER_IID) + + /** + * Called when the scroll position of some element has changed. + */ + virtual void ScrollPositionChanged() = 0; + + /** + * Called when an async panning/zooming transform has started being applied + * and passed the scroll offset + */ + virtual void AsyncPanZoomStarted() {}; + + /** + * Called when an async panning/zooming transform is no longer applied + * and passed the scroll offset + */ + virtual void AsyncPanZoomStopped() {}; +}; + +NS_DEFINE_STATIC_IID_ACCESSOR(nsIScrollObserver, NS_ISCROLLOBSERVER_IID) + +#endif /* nsIScrollObserver_h___ */ -- cgit v1.2.3