1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
3 * This Source Code Form is subject to the terms of the Mozilla Public
4 * License, v. 2.0. If a copy of the MPL was not distributed with this
5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
7 #ifndef __nsIRollupListener_h__
8 #define __nsIRollupListener_h__
16 class nsIRollupListener
{
19 * Notifies the object to rollup, optionally returning the node that
22 * If aFlush is true, then views should be flushed after the rollup.
24 * aPoint is the mouse pointer position where the event that triggered the
25 * rollup occurred, which may be nullptr.
27 * aCount is the number of popups in a chain to close. If this is
28 * UINT32_MAX, then all popups are closed.
29 * If aLastRolledUp is non-null, it will be set to the last rolled up popup,
30 * if this is supported. aLastRolledUp is not addrefed.
32 * Returns true if the event that the caller is processing should be consumed.
34 MOZ_CAN_RUN_SCRIPT_BOUNDARY
35 virtual bool Rollup(uint32_t aCount
, bool aFlush
,
36 const mozilla::LayoutDeviceIntPoint
* aPoint
,
37 nsIContent
** aLastRolledUp
) = 0;
40 * Asks the RollupListener if it should rollup on mouse wheel events
42 virtual bool ShouldRollupOnMouseWheelEvent() = 0;
45 * Asks the RollupListener if it should consume mouse wheel events
47 virtual bool ShouldConsumeOnMouseWheelEvent() = 0;
50 * Asks the RollupListener if it should rollup on mouse activate, eg. X-Mouse
52 virtual bool ShouldRollupOnMouseActivate() = 0;
55 * Retrieve the widgets for open menus and store them in the array
56 * aWidgetChain. The number of menus of the same type should be returned,
57 * for example, if a context menu is open, return only the number of menus
58 * that are part of the context menu chain. This allows closing up only
59 * those menus in different situations. The returned value should be exactly
60 * the same number of widgets added to aWidgetChain.
62 virtual uint32_t GetSubmenuWidgetChain(
63 nsTArray
<nsIWidget
*>* aWidgetChain
) = 0;
66 * Notify the RollupListener that the widget did a Move or Resize.
68 virtual void NotifyGeometryChange() = 0;
70 virtual nsIWidget
* GetRollupWidget() = 0;
73 * If a native menu is currently shown, closes the menu.
74 * Returns true if a native menu was open.
76 virtual bool RollupNativeMenu() { return false; }
79 #endif /* __nsIRollupListener_h__ */