зеркало из https://github.com/mozilla/gecko-dev.git
90 строки
3.4 KiB
C++
90 строки
3.4 KiB
C++
/* -*- 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: NPL 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 Netscape Public License
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* Version 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/NPL/
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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
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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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 the GNU General Public License Version 2 or later (the "GPL"), or
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* 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 NPL, 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 NPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef nsIFocusTracker_h___
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#define nsIFocusTracker_h___
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#include "nsISupports.h"
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#include "nsIFrame.h"
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class nsIPresContext;
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// IID for the nsIFocusTracker interface
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#define NS_IFOCUSTRACKER_IID \
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{ 0x81ac51d1, 0x923b, 0x11d2, \
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{ 0x91, 0x8f, 0x0, 0x80, 0xc8, 0xe4, 0x4d, 0xb5 } }
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class nsIFocusTracker : public nsISupports
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{
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public:
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static const nsIID& GetIID() { static nsIID iid = NS_IFOCUSTRACKER_IID; return iid; }
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/** ScrollFrameIntoView
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* limited version of nsPresShell::ScrollFrameIntoView
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* @param aFrame will be the frame to scroll into view.
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*/
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NS_IMETHOD ScrollFrameIntoView(nsIFrame *aFrame) = 0;
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/**
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* Returns the primary frame associated with the content object.
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*
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* The primary frame is the frame that is most closely associated with the
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* content. A frame is more closely associated with the content that another
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* frame if the one frame contains directly or indirectly the other frame (e.g.,
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* when a frame is scrolled there is a scroll frame that contains the frame
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* being scrolled). The primary frame is always the first-in-flow.
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*
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* In the case of absolutely positioned elements and floated elements,
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* the primary frame is the frame that is out of the flow and not the
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* placeholder frame.
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*/
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NS_IMETHOD GetPrimaryFrameFor(nsIContent* aContent,
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nsIFrame** aPrimaryFrame) const = 0;
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/**
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* GetPresContent will return the nsIPresContext Interface from this
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* FocusTracker
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* usefull for getting screen coordinates of current selection
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*/
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NS_IMETHOD GetPresContext(nsIPresContext **aContext) = 0;
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};
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#endif //nsIFocusTracker_h___
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