2007-07-04 08:49:38 -07:00
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Neil Deakin
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* Portions created by the Initial Developer are Copyright (C) 2006
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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/**
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* The XUL Popup Manager keeps track of all open popups.
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*/
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#ifndef nsXULPopupManager_h__
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#define nsXULPopupManager_h__
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2008-12-30 05:30:51 -08:00
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#include "prlog.h"
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#include "nsGUIEvent.h"
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#include "nsIContent.h"
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#include "nsIRollupListener.h"
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#include "nsIMenuRollup.h"
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#include "nsIDOMKeyListener.h"
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2007-07-17 05:21:53 -07:00
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#include "nsPoint.h"
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#include "nsCOMPtr.h"
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#include "nsTArray.h"
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#include "nsITimer.h"
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#include "nsThreadUtils.h"
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#include "nsStyleConsts.h"
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/**
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* There are two types that are used:
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* - dismissable popups such as menus, which should close up when there is a
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* click outside the popup. In this situation, the entire chain of menus
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* above should also be closed.
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* - panels, which stay open until a request is made to close them. This
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* type is used by tooltips.
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*
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* When a new popup is opened, it is appended to the popup chain, stored in a
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* linked list in mPopups for dismissable menus and panels or mNoHidePanels
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* for tooltips and panels with noautohide="true".
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* Popups are stored in this list linked from newest to oldest. When a click
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* occurs outside one of the open dismissable popups, the chain is closed by
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* calling Rollup.
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*/
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class nsMenuFrame;
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class nsMenuPopupFrame;
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class nsMenuBarFrame;
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class nsMenuParent;
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class nsIDOMKeyEvent;
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class nsIDocShellTreeItem;
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class nsIView;
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// when a menu command is executed, the closemenu attribute may be used
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// to define how the menu should be closed up
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enum CloseMenuMode {
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CloseMenuMode_Auto, // close up the chain of menus, default value
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CloseMenuMode_None, // don't close up any menus
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CloseMenuMode_Single // close up only the menu the command is inside
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};
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/**
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* nsNavigationDirection: an enum expressing navigation through the menus in
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* terms which are independent of the directionality of the chrome. The
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* terminology, derived from XSL-FO and CSS3 (e.g.
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* http://www.w3.org/TR/css3-text/#TextLayout), is BASE (Before, After, Start,
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* End), with the addition of First and Last (mapped to Home and End
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* respectively).
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*
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* In languages such as English where the inline progression is left-to-right
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* and the block progression is top-to-bottom (lr-tb), these terms will map out
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* as in the following diagram
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*
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* --- inline progression --->
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*
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* First |
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* ... |
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* Before |
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* +--------+ block
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* Start | | End progression
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* +--------+ |
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* After |
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* ... |
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* Last V
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*
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*/
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enum nsNavigationDirection {
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eNavigationDirection_Last,
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eNavigationDirection_First,
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eNavigationDirection_Start,
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eNavigationDirection_Before,
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eNavigationDirection_End,
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eNavigationDirection_After
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};
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#define NS_DIRECTION_IS_INLINE(dir) (dir == eNavigationDirection_Start || \
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dir == eNavigationDirection_End)
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#define NS_DIRECTION_IS_BLOCK(dir) (dir == eNavigationDirection_Before || \
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dir == eNavigationDirection_After)
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#define NS_DIRECTION_IS_BLOCK_TO_EDGE(dir) (dir == eNavigationDirection_First || \
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dir == eNavigationDirection_Last)
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PR_STATIC_ASSERT(NS_STYLE_DIRECTION_LTR == 0 && NS_STYLE_DIRECTION_RTL == 1);
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PR_STATIC_ASSERT((NS_VK_HOME == NS_VK_END + 1) &&
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(NS_VK_LEFT == NS_VK_END + 2) &&
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(NS_VK_UP == NS_VK_END + 3) &&
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(NS_VK_RIGHT == NS_VK_END + 4) &&
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(NS_VK_DOWN == NS_VK_END + 5));
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/**
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* DirectionFromKeyCodeTable: two arrays, the first for left-to-right and the
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* other for right-to-left, that map keycodes to values of
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* nsNavigationDirection.
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*/
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extern const nsNavigationDirection DirectionFromKeyCodeTable[2][6];
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#define NS_DIRECTION_FROM_KEY_CODE(frame, keycode) \
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(DirectionFromKeyCodeTable[frame->GetStyleVisibility()->mDirection] \
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[keycode - NS_VK_END])
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2007-07-04 08:49:38 -07:00
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// nsMenuChainItem holds info about an open popup. Items are stored in a
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// doubly linked list. Note that the linked list is stored beginning from
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// the lowest child in a chain of menus, as this is the active submenu.
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class nsMenuChainItem
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{
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private:
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nsMenuPopupFrame* mFrame; // the popup frame
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nsPopupType mPopupType; // the popup type of the frame
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PRPackedBool mIsContext; // true for context menus
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PRPackedBool mOnMenuBar; // true if the menu is on a menu bar
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PRPackedBool mIgnoreKeys; // true if keyboard listeners should not be used
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nsMenuChainItem* mParent;
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nsMenuChainItem* mChild;
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public:
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nsMenuChainItem(nsMenuPopupFrame* aFrame, PRBool aIsContext, nsPopupType aPopupType)
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: mFrame(aFrame),
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mPopupType(aPopupType),
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mIsContext(aIsContext),
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mOnMenuBar(PR_FALSE),
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mIgnoreKeys(PR_FALSE),
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mParent(nsnull),
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mChild(nsnull)
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{
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NS_ASSERTION(aFrame, "null frame passed to nsMenuChainItem constructor");
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MOZ_COUNT_CTOR(nsMenuChainItem);
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}
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~nsMenuChainItem()
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{
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MOZ_COUNT_DTOR(nsMenuChainItem);
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}
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nsIContent* Content();
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nsMenuPopupFrame* Frame() { return mFrame; }
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nsPopupType PopupType() { return mPopupType; }
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PRBool IsMenu() { return mPopupType == ePopupTypeMenu; }
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PRBool IsContextMenu() { return mIsContext; }
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PRBool IgnoreKeys() { return mIgnoreKeys; }
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PRBool IsOnMenuBar() { return mOnMenuBar; }
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void SetIgnoreKeys(PRBool aIgnoreKeys) { mIgnoreKeys = aIgnoreKeys; }
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void SetOnMenuBar(PRBool aOnMenuBar) { mOnMenuBar = aOnMenuBar; }
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nsMenuChainItem* GetParent() { return mParent; }
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nsMenuChainItem* GetChild() { return mChild; }
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// set the parent of this item to aParent, also changing the parent
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// to have this as a child.
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void SetParent(nsMenuChainItem* aParent);
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// removes an item from the chain. The root pointer must be supplied in case
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// the item is the first item in the chain in which case the pointer will be
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// set to the next item, or null if there isn't another item. After detaching,
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// this item will not have a parent or a child.
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void Detach(nsMenuChainItem** aRoot);
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};
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// this class is used for dispatching popupshowing events asynchronously.
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class nsXULPopupShowingEvent : public nsRunnable
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{
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public:
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nsXULPopupShowingEvent(nsIContent *aPopup,
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nsIContent *aMenu,
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nsPopupType aPopupType,
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PRBool aIsContextMenu,
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PRBool aSelectFirstItem)
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: mPopup(aPopup),
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mMenu(aMenu),
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mPopupType(aPopupType),
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mIsContextMenu(aIsContextMenu),
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mSelectFirstItem(aSelectFirstItem)
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{
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NS_ASSERTION(aPopup, "null popup supplied to nsXULPopupShowingEvent constructor");
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NS_ASSERTION(aMenu, "null menu supplied to nsXULPopupShowingEvent constructor");
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}
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NS_IMETHOD Run();
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private:
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nsCOMPtr<nsIContent> mPopup;
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nsCOMPtr<nsIContent> mMenu;
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nsPopupType mPopupType;
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PRBool mIsContextMenu;
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PRBool mSelectFirstItem;
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};
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// this class is used for dispatching popuphiding events asynchronously.
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class nsXULPopupHidingEvent : public nsRunnable
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{
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public:
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nsXULPopupHidingEvent(nsIContent *aPopup,
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nsIContent* aNextPopup,
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nsIContent* aLastPopup,
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nsPopupType aPopupType,
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PRBool aDeselectMenu)
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: mPopup(aPopup),
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mNextPopup(aNextPopup),
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mLastPopup(aLastPopup),
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mPopupType(aPopupType),
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mDeselectMenu(aDeselectMenu)
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{
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NS_ASSERTION(aPopup, "null popup supplied to nsXULPopupHidingEvent constructor");
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// aNextPopup and aLastPopup may be null
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}
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NS_IMETHOD Run();
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private:
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nsCOMPtr<nsIContent> mPopup;
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nsCOMPtr<nsIContent> mNextPopup;
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nsCOMPtr<nsIContent> mLastPopup;
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nsPopupType mPopupType;
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PRBool mDeselectMenu;
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};
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// this class is used for dispatching menu command events asynchronously.
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class nsXULMenuCommandEvent : public nsRunnable
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{
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public:
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nsXULMenuCommandEvent(nsIContent *aMenu,
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PRBool aIsTrusted,
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PRBool aShift,
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PRBool aControl,
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PRBool aAlt,
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PRBool aMeta,
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PRBool aUserInput,
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PRBool aFlipChecked)
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: mMenu(aMenu),
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mIsTrusted(aIsTrusted),
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mShift(aShift),
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mControl(aControl),
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mAlt(aAlt),
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mMeta(aMeta),
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mUserInput(aUserInput),
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mFlipChecked(aFlipChecked),
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mCloseMenuMode(CloseMenuMode_Auto)
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{
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NS_ASSERTION(aMenu, "null menu supplied to nsXULMenuCommandEvent constructor");
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}
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NS_IMETHOD Run();
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2010-04-19 07:12:58 -07:00
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void SetCloseMenuMode(CloseMenuMode aCloseMenuMode) { mCloseMenuMode = aCloseMenuMode; }
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2007-07-04 08:49:38 -07:00
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private:
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nsCOMPtr<nsIContent> mMenu;
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PRBool mIsTrusted;
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PRBool mShift;
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PRBool mControl;
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PRBool mAlt;
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PRBool mMeta;
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2007-07-23 17:55:52 -07:00
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PRBool mUserInput;
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2010-04-19 07:12:58 -07:00
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PRBool mFlipChecked;
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2007-08-30 08:43:10 -07:00
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CloseMenuMode mCloseMenuMode;
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2007-07-04 08:49:38 -07:00
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};
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class nsXULPopupManager : public nsIDOMKeyListener,
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public nsIMenuRollup,
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public nsIRollupListener,
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public nsITimerCallback
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{
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public:
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friend class nsXULPopupShowingEvent;
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friend class nsXULPopupHidingEvent;
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friend class nsXULMenuCommandEvent;
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NS_DECL_ISUPPORTS
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NS_DECL_NSITIMERCALLBACK
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2009-12-22 15:49:33 -08:00
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// nsIRollupListener
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NS_IMETHOD Rollup(PRUint32 aCount, nsIContent **aContent);
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NS_IMETHOD ShouldRollupOnMouseWheelEvent(PRBool *aShould);
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NS_IMETHOD ShouldRollupOnMouseActivate(PRBool *aShould);
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2009-06-12 11:23:16 -07:00
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virtual PRUint32 GetSubmenuWidgetChain(nsTArray<nsIWidget*> *aWidgetChain);
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2010-07-27 06:38:02 -07:00
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virtual void AdjustPopupsOnWindowChange(nsPIDOMWindow* aWindow);
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2008-01-16 22:57:13 -08:00
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2007-07-04 08:49:38 -07:00
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static nsXULPopupManager* sInstance;
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// initialize and shutdown methods called by nsLayoutStatics
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static nsresult Init();
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static void Shutdown();
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// returns a weak reference to the popup manager instance, could return null
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// if a popup manager could not be allocated
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static nsXULPopupManager* GetInstance();
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2007-10-03 15:00:41 -07:00
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// get the frame for a content node aContent if the frame's type
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2007-10-09 05:11:14 -07:00
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// matches aFrameType. Otherwise, return null. If aShouldFlush is true,
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// then the frames are flushed before retrieving the frame.
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nsIFrame* GetFrameOfTypeForContent(nsIContent* aContent,
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nsIAtom* aFrameType,
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PRBool aShouldFlush);
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2007-10-03 15:00:41 -07:00
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2007-07-04 08:49:38 -07:00
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// given a menu frame, find the prevous or next menu frame. If aPopup is
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// true then navigate a menupopup, from one item on the menu to the previous
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// or next one. This is used for cursor navigation between items in a popup
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// menu. If aIsPopup is false, the navigation is on a menubar, so navigate
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// between menus on the menubar. This is used for left/right cursor navigation.
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//
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2007-11-17 07:47:38 -08:00
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// Items that are not valid, such as non-menu or non-menuitem elements are
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// skipped, and the next or previous item after that is checked.
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2007-07-04 08:49:38 -07:00
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//
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2007-11-17 07:47:38 -08:00
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// If aStart is null, the first valid item is retrieved by GetNextMenuItem
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// and the last valid item is retrieved by GetPreviousMenuItem.
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//
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// Both methods will loop around the beginning or end if needed.
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2007-07-04 08:49:38 -07:00
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//
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// aParent - the parent menubar or menupopup
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// aStart - the menu/menuitem to start navigation from. GetPreviousMenuItem
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// returns the item before it, while GetNextMenuItem returns the
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2007-11-17 07:47:38 -08:00
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// item after it.
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2007-07-04 08:49:38 -07:00
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// aIsPopup - true for menupopups, false for menubars
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static nsMenuFrame* GetPreviousMenuItem(nsIFrame* aParent,
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nsMenuFrame* aStart,
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PRBool aIsPopup);
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static nsMenuFrame* GetNextMenuItem(nsIFrame* aParent,
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nsMenuFrame* aStart,
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PRBool aIsPopup);
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// returns true if the menu item aContent is a valid menuitem which may
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// be navigated to. aIsPopup should be true for items on a popup, or false
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// for items on a menubar.
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static PRBool IsValidMenuItem(nsPresContext* aPresContext,
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nsIContent* aContent,
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PRBool aOnPopup);
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// inform the popup manager that a menu bar has been activated or deactivated,
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// either because one of its menus has opened or closed, or that the menubar
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// has been focused such that its menus may be navigated with the keyboard.
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// aActivate should be true when the menubar should be focused, and false
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// when the active menu bar should be defocused. In the latter case, if
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// aMenuBar isn't currently active, yet another menu bar is, that menu bar
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// will remain active.
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void SetActiveMenuBar(nsMenuBarFrame* aMenuBar, PRBool aActivate);
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// retrieve the node and offset of the last mouse event used to open a
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// context menu. This information is determined from the rangeParent and
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2007-11-17 07:47:38 -08:00
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// the rangeOffset of the event supplied to ShowPopup or ShowPopupAtScreen.
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2007-07-04 08:49:38 -07:00
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// This is used by the implementation of nsIDOMXULDocument::GetPopupRangeParent
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// and nsIDOMXULDocument::GetPopupRangeOffset.
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void GetMouseLocation(nsIDOMNode** aNode, PRInt32* aOffset);
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/**
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* Open a <menu> given its content node. If aSelectFirstItem is
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* set to true, the first item on the menu will automatically be
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* selected. If aAsynchronous is true, the event will be dispatched
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* asynchronously. This should be true when called from frame code.
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*/
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void ShowMenu(nsIContent *aMenu, PRBool aSelectFirstItem, PRBool aAsynchronous);
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/**
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* Open a popup, either anchored or unanchored. If aSelectFirstItem is
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* true, then the first item in the menu is selected. The arguments are
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* similar to those for nsIPopupBoxObject::OpenPopup.
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*
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2007-11-17 07:47:38 -08:00
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* aTriggerEvent should be the event that triggered the event. This is used
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* to determine the coordinates for the popupshowing event. This may be null
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* if the popup was not triggered by an event, or the coordinates are not
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* important. Note that this may be reworked in bug 383930.
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*
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2007-07-04 08:49:38 -07:00
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* This fires the popupshowing event synchronously.
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*/
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void ShowPopup(nsIContent* aPopup,
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nsIContent* aAnchorContent,
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const nsAString& aPosition,
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PRInt32 aXPos, PRInt32 aYPos,
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PRBool aIsContextMenu,
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PRBool aAttributesOverride,
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2007-11-17 07:47:38 -08:00
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PRBool aSelectFirstItem,
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nsIDOMEvent* aTriggerEvent);
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2007-07-04 08:49:38 -07:00
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/**
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* Open a popup at a specific screen position specified by aXPos and aYPos,
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* measured in CSS pixels.
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*
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* This fires the popupshowing event synchronously.
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2008-04-23 14:25:34 -07:00
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*
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* If aIsContextMenu is true, the popup is positioned at a slight
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* offset from aXPos/aYPos to ensure that it is not under the mouse
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* cursor.
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2007-07-04 08:49:38 -07:00
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*/
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void ShowPopupAtScreen(nsIContent* aPopup,
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PRInt32 aXPos, PRInt32 aYPos,
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2007-11-17 07:47:38 -08:00
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PRBool aIsContextMenu,
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nsIDOMEvent* aTriggerEvent);
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2007-07-04 08:49:38 -07:00
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/**
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* This method is provided only for compatibility with an older popup API.
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* New code should not call this function and should call ShowPopup instead.
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*
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* This fires the popupshowing event synchronously.
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*/
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void ShowPopupWithAnchorAlign(nsIContent* aPopup,
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nsIContent* aAnchorContent,
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nsAString& aAnchor,
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nsAString& aAlign,
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PRInt32 aXPos, PRInt32 aYPos,
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PRBool aIsContextMenu);
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/*
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* Hide a popup aPopup. If the popup is in a <menu>, then also inform the
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* menu that the popup is being hidden.
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*
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* aHideChain - true if the entire chain of menus should be closed. If false,
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* only this popup is closed.
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* aDeselectMenu - true if the parent <menu> of the popup should be deselected.
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* This will be false when the menu is closed by pressing the
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* Escape key.
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* aAsynchronous - true if the first popuphiding event should be sent
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* asynchrously. This should be true if HidePopup is called
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* from a frame.
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2009-06-12 11:23:16 -07:00
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* aLastPopup - optional popup to close last when hiding a chain of menus.
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* If null, then all popups will be closed.
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2007-07-04 08:49:38 -07:00
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*/
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void HidePopup(nsIContent* aPopup,
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PRBool aHideChain,
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PRBool aDeselectMenu,
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2009-06-12 11:23:16 -07:00
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PRBool aAsynchronous,
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nsIContent* aLastPopup = nsnull);
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2007-07-04 08:49:38 -07:00
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2010-07-27 06:38:04 -07:00
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/**
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* Hide the popup associated the view aView
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*/
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void HidePopup(nsIView* aView);
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2007-07-04 08:49:38 -07:00
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/**
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* Hide a popup after a short delay. This is used when rolling over menu items.
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* This timer is stored in mCloseTimer. The timer may be cancelled and the popup
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* closed by calling KillMenuTimer.
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*/
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void HidePopupAfterDelay(nsMenuPopupFrame* aPopup);
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/**
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2008-02-08 12:23:05 -08:00
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* Hide all of the popups from a given docshell. This should be called when the
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2007-07-04 08:49:38 -07:00
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* document is hidden.
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*/
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2008-02-08 12:23:05 -08:00
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void HidePopupsInDocShell(nsIDocShellTreeItem* aDocShellToHide);
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2007-07-04 08:49:38 -07:00
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/**
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* Execute a menu command from the triggering event aEvent.
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*
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* aMenu - a menuitem to execute
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2010-04-19 07:12:58 -07:00
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* aEvent - an nsXULMenuCommandEvent that contains all the info from the mouse
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* event which triggered the menu to be executed, may not be null
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2007-07-04 08:49:38 -07:00
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*/
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2010-04-19 07:12:58 -07:00
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void ExecuteMenu(nsIContent* aMenu, nsXULMenuCommandEvent* aEvent);
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2007-07-04 08:49:38 -07:00
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2007-07-11 10:23:30 -07:00
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/**
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* Return true if the popup for the supplied content node is open.
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*/
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PRBool IsPopupOpen(nsIContent* aPopup);
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2007-07-04 08:49:38 -07:00
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/**
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* Return true if the popup for the supplied menu parent is open.
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*/
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2008-12-05 08:37:31 -08:00
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PRBool IsPopupOpenForMenuParent(nsMenuParent* aMenuParent);
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2007-07-04 08:49:38 -07:00
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2007-08-15 18:09:58 -07:00
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/**
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* Return the frame for the topmost open popup of a given type, or null if
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2007-09-18 08:00:43 -07:00
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* no popup of that type is open. If aType is ePopupTypeAny, a menu of any
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2008-12-05 08:37:30 -08:00
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* type is returned, except for popups in the mNoHidePanels list.
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2007-08-15 18:09:58 -07:00
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*/
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nsIFrame* GetTopPopup(nsPopupType aType);
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2007-07-16 07:53:32 -07:00
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/**
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2009-02-24 00:25:25 -08:00
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* Return an array of all the open and visible popup frames for
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* menus, in order from top to bottom.
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2007-07-16 07:53:32 -07:00
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*/
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2009-02-24 00:25:25 -08:00
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nsTArray<nsIFrame *> GetVisiblePopups();
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2007-07-16 07:53:32 -07:00
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2007-07-04 08:49:38 -07:00
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/**
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* Return false if a popup may not be opened. This will return false if the
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* popup is already open, if the popup is in a content shell that is not
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* focused, or if it is a submenu of another menu that isn't open.
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*/
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PRBool MayShowPopup(nsMenuPopupFrame* aFrame);
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2010-07-27 06:38:02 -07:00
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/**
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* Indicate that the popup associated with aView has been moved to the
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* specified screen coordiates.
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*/
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void PopupMoved(nsIView* aView, nsIntPoint aPoint);
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/**
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* Indicate that the popup associated with aView has been resized to the
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* specified screen width and height.
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*/
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void PopupResized(nsIView* aView, nsIntSize ASize);
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2007-07-04 08:49:38 -07:00
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/**
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* Called when a popup frame is destroyed. In this case, just remove the
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* item and later popups from the list. No point going through HidePopup as
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* the frames have gone away.
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*/
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void PopupDestroyed(nsMenuPopupFrame* aFrame);
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/**
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* Returns true if there is a context menu open. If aPopup is specified,
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* then the context menu must be later in the chain than aPopup. If aPopup
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* is null, returns true if any context menu at all is open.
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*/
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PRBool HasContextMenu(nsMenuPopupFrame* aPopup);
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/**
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* Update the commands for the menus within the menu popup for a given
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* content node. aPopup should be a XUL menupopup element. This method
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* changes attributes on the children of aPopup, and deals only with the
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* content of the popup, not the frames.
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*/
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void UpdateMenuItems(nsIContent* aPopup);
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/**
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* Stop the timer which hides a popup after a delay, started by a previous
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* call to HidePopupAfterDelay. In addition, the popup awaiting to be hidden
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* is closed asynchronously.
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*/
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void KillMenuTimer();
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2007-07-11 05:05:40 -07:00
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/**
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* Cancel the timer which closes menus after delay, but only if the menu to
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* close is aMenuParent. When a submenu is opened, the user might move the
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* mouse over a sibling menuitem which would normally close the menu. This
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* menu is closed via a timer. However, if the user moves the mouse over the
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* submenu before the timer fires, we should instead cancel the timer. This
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* ensures that the user can move the mouse diagonally over a menu.
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*/
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2008-12-05 08:37:31 -08:00
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void CancelMenuTimer(nsMenuParent* aMenuParent);
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2007-07-11 05:05:40 -07:00
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2007-07-04 08:49:38 -07:00
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/**
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* Handles navigation for menu accelkeys. Returns true if the key has
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2007-07-23 10:08:10 -07:00
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* been handled. If aFrame is specified, then the key is handled by that
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* popup, otherwise if aFrame is null, the key is handled by the active
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* popup or menubar.
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2007-07-04 08:49:38 -07:00
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*/
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2007-07-23 10:08:10 -07:00
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PRBool HandleShortcutNavigation(nsIDOMKeyEvent* aKeyEvent,
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nsMenuPopupFrame* aFrame);
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2007-07-04 08:49:38 -07:00
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/**
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* Handles cursor navigation within a menu. Returns true if the key has
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* been handled.
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*/
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PRBool HandleKeyboardNavigation(PRUint32 aKeyCode);
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2007-07-23 10:08:10 -07:00
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/**
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* Handle keyboard navigation within a menu popup specified by aFrame.
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2007-11-17 07:47:38 -08:00
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* Returns true if the key was handled and other default handling
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2007-07-23 10:08:10 -07:00
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* should not occur.
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*/
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PRBool HandleKeyboardNavigationInPopup(nsMenuPopupFrame* aFrame,
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nsNavigationDirection aDir)
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{
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return HandleKeyboardNavigationInPopup(nsnull, aFrame, aDir);
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}
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2007-07-04 08:49:38 -07:00
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NS_IMETHODIMP HandleEvent(nsIDOMEvent* aEvent) { return NS_OK; }
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NS_IMETHOD KeyUp(nsIDOMEvent* aKeyEvent);
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NS_IMETHOD KeyDown(nsIDOMEvent* aKeyEvent);
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NS_IMETHOD KeyPress(nsIDOMEvent* aKeyEvent);
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protected:
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nsXULPopupManager();
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~nsXULPopupManager();
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// get the nsMenuFrame, if any, for the given content node
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nsMenuFrame* GetMenuFrameForContent(nsIContent* aContent);
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// get the nsMenuPopupFrame, if any, for the given content node
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nsMenuPopupFrame* GetPopupFrameForContent(nsIContent* aContent);
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2007-08-15 07:03:21 -07:00
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// return the topmost menu, skipping over invisible popups
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nsMenuChainItem* GetTopVisibleMenu();
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2007-11-17 07:47:38 -08:00
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// Hide all of the visible popups from the given list. aDeselectMenu
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// indicates whether to deselect the menu of popups when hiding; this
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// flag is passed as the first argument to HidePopup. This function
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// can cause style changes and frame destruction.
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void HidePopupsInList(const nsTArray<nsMenuPopupFrame *> &aFrames,
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PRBool aDeselectMenu);
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// set the event that was used to trigger the popup, or null to
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// clear the event details.
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void SetTriggerEvent(nsIDOMEvent* aEvent, nsIContent* aPopup);
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2007-07-04 08:49:38 -07:00
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// callbacks for ShowPopup and HidePopup as events may be done asynchronously
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void ShowPopupCallback(nsIContent* aPopup,
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nsMenuPopupFrame* aPopupFrame,
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PRBool aIsContextMenu,
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PRBool aSelectFirstItem);
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void HidePopupCallback(nsIContent* aPopup,
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nsMenuPopupFrame* aPopupFrame,
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nsIContent* aNextPopup,
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nsIContent* aLastPopup,
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2007-08-15 18:09:58 -07:00
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nsPopupType aPopupType,
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2007-07-04 08:49:38 -07:00
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PRBool aDeselectMenu);
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/**
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* Fire a popupshowing event on the popup aPopup and then open the popup.
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*
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2007-08-03 07:05:07 -07:00
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* The caller must keep a strong reference to aPopup.
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*
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2007-07-04 08:49:38 -07:00
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* aPopup - the popup node to open
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* aMenu - should be set to the parent menu if this is a popup associated
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* with a menu. Otherwise, should be null.
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* aPresContext - the prescontext
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2007-08-15 18:09:58 -07:00
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* aPopupType - the popup frame's PopupType
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2007-07-04 08:49:38 -07:00
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* aIsContextMenu - true for context menus
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* aSelectFirstItem - true to select the first item in the menu
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*/
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void FirePopupShowingEvent(nsIContent* aPopup,
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nsIContent* aMenu,
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nsPresContext* aPresContext,
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2007-08-15 18:09:58 -07:00
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nsPopupType aPopupType,
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2007-07-04 08:49:38 -07:00
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PRBool aIsContextMenu,
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PRBool aSelectFirstItem);
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/**
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* Fire a popuphiding event and then hide the popup. This will be called
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* recursively if aNextPopup and aLastPopup are set in order to hide a chain
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* of open menus. If these are not set, only one popup is closed. However,
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2007-08-15 18:09:58 -07:00
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* if the popup type indicates a menu, yet the next popup is not a menu,
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* then this ends the closing of popups. This allows a menulist inside a
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* non-menu to close up the menu but not close up the panel it is contained
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* within.
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2007-07-04 08:49:38 -07:00
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*
|
2007-08-03 07:05:07 -07:00
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* The caller must keep a strong reference to aPopup, aNextPopup and aLastPopup.
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*
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2007-07-04 08:49:38 -07:00
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* aPopup - the popup to hide
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* aNextPopup - the next popup to hide
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* aLastPopup - the last popup in the chain to hide
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* aPresContext - nsPresContext for the popup's frame
|
2007-08-15 18:09:58 -07:00
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* aPopupType - the PopupType of the frame.
|
2007-07-04 08:49:38 -07:00
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* aDeselectMenu - true to unhighlight the menu when hiding it
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*/
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void FirePopupHidingEvent(nsIContent* aPopup,
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nsIContent* aNextPopup,
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nsIContent* aLastPopup,
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nsPresContext *aPresContext,
|
2007-08-15 18:09:58 -07:00
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nsPopupType aPopupType,
|
2007-07-04 08:49:38 -07:00
|
|
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PRBool aDeselectMenu);
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|
2007-07-23 10:08:10 -07:00
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|
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/**
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|
|
* Handle keyboard navigation within a menu popup specified by aItem.
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|
*/
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|
PRBool HandleKeyboardNavigationInPopup(nsMenuChainItem* aItem,
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nsNavigationDirection aDir)
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|
|
{
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|
return HandleKeyboardNavigationInPopup(aItem, aItem->Frame(), aDir);
|
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|
}
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|
private:
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|
/**
|
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|
* Handle keyboard navigation within a menu popup aFrame. If aItem is
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|
* supplied, then it is expected to have a frame equal to aFrame.
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|
* If aItem is non-null, then the navigation may be redirected to
|
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|
|
* an open submenu if one exists. Returns true if the key was
|
2007-11-17 07:47:38 -08:00
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|
|
* handled and other default handling should not occur.
|
2007-07-23 10:08:10 -07:00
|
|
|
*/
|
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|
|
PRBool HandleKeyboardNavigationInPopup(nsMenuChainItem* aItem,
|
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|
|
nsMenuPopupFrame* aFrame,
|
2007-07-04 08:49:38 -07:00
|
|
|
nsNavigationDirection aDir);
|
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|
2007-07-23 10:08:10 -07:00
|
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|
protected:
|
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|
2007-07-04 08:49:38 -07:00
|
|
|
/**
|
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|
|
* Set mouse capturing for the current popup. This traps mouse clicks that
|
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|
|
* occur outside the popup so that it can be closed up. aOldPopup should be
|
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|
|
* set to the popup that was previously the current popup.
|
|
|
|
*/
|
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|
|
void SetCaptureState(nsIContent *aOldPopup);
|
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|
|
/**
|
|
|
|
* Key event listeners are attached to the document containing the current
|
|
|
|
* menu for menu and shortcut navigation. Only one listener is needed at a
|
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|
|
* time, stored in mKeyListener, so switch it only if the document changes.
|
|
|
|
* Having menus in different documents is very rare, so the listeners will
|
|
|
|
* usually only be attached when the first menu opens and removed when all
|
|
|
|
* menus have closed.
|
|
|
|
*
|
|
|
|
* This is also used when only a menubar is active without any open menus,
|
|
|
|
* so that keyboard navigation between menus on the menubar may be done.
|
|
|
|
*/
|
|
|
|
void UpdateKeyboardListeners();
|
|
|
|
|
2008-02-08 12:23:05 -08:00
|
|
|
/*
|
|
|
|
* Returns true if the docshell for aDoc is aExpected or a child of aExpected.
|
|
|
|
*/
|
|
|
|
PRBool IsChildOfDocShell(nsIDocument* aDoc, nsIDocShellTreeItem* aExpected);
|
|
|
|
|
2007-07-04 08:49:38 -07:00
|
|
|
// the document the key event listener is attached to
|
|
|
|
nsCOMPtr<nsIDOMEventTarget> mKeyListener;
|
|
|
|
|
|
|
|
// widget that is currently listening to rollup events
|
|
|
|
nsCOMPtr<nsIWidget> mWidget;
|
|
|
|
|
2007-11-17 07:47:38 -08:00
|
|
|
// range parent and offset set in SetTriggerEvent
|
2007-07-04 08:49:38 -07:00
|
|
|
nsCOMPtr<nsIDOMNode> mRangeParent;
|
|
|
|
PRInt32 mRangeOffset;
|
2009-07-21 17:45:06 -07:00
|
|
|
// Device pixels relative to the showing popup's presshell's
|
2010-07-18 19:23:48 -07:00
|
|
|
// root prescontext's root frame.
|
2009-01-14 19:27:09 -08:00
|
|
|
nsIntPoint mCachedMousePoint;
|
2007-07-04 08:49:38 -07:00
|
|
|
|
|
|
|
// set to the currently active menu bar, if any
|
|
|
|
nsMenuBarFrame* mActiveMenuBar;
|
|
|
|
|
2008-12-05 08:37:30 -08:00
|
|
|
// linked list of normal menus and panels.
|
|
|
|
nsMenuChainItem* mPopups;
|
2007-07-04 08:49:38 -07:00
|
|
|
|
2008-12-05 08:37:30 -08:00
|
|
|
// linked list of noautohide panels and tooltips.
|
|
|
|
nsMenuChainItem* mNoHidePanels;
|
2007-07-04 08:49:38 -07:00
|
|
|
|
|
|
|
// timer used for HidePopupAfterDelay
|
|
|
|
nsCOMPtr<nsITimer> mCloseTimer;
|
|
|
|
|
|
|
|
// a popup that is waiting on the timer
|
|
|
|
nsMenuPopupFrame* mTimerMenu;
|
|
|
|
};
|
|
|
|
|
2007-11-28 12:18:11 -08:00
|
|
|
nsresult
|
|
|
|
NS_NewXULPopupManager(nsISupports** aResult);
|
|
|
|
|
2007-07-04 08:49:38 -07:00
|
|
|
#endif
|