зеркало из https://github.com/mozilla/gecko-dev.git
126 строки
3.5 KiB
C++
126 строки
3.5 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: 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
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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 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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#ifndef nsIListControlFrame_h___
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#define nsIListControlFrame_h___
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#include "nsQueryFrame.h"
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#include "nsFont.h"
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class nsAString;
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class nsIContent;
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/**
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* nsIListControlFrame is the interface for frame-based listboxes.
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*/
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class nsIListControlFrame : public nsQueryFrame
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{
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public:
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NS_DECL_QUERYFRAME_TARGET(nsIListControlFrame)
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/**
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* Sets the ComboBoxFrame
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*
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*/
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virtual void SetComboboxFrame(nsIFrame* aComboboxFrame) = 0;
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/**
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* Get the display string for an item
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*/
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virtual void GetOptionText(PRInt32 aIndex, nsAString & aStr) = 0;
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/**
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* Get the Selected Item's index
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*
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*/
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virtual PRInt32 GetSelectedIndex() = 0;
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/**
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* Initiates mouse capture for the listbox
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*
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*/
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virtual void CaptureMouseEvents(PRBool aGrabMouseEvents) = 0;
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/**
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* Returns the height of a single row in the list. This is the
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* maximum of the heights of all the options/optgroups.
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*/
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virtual nscoord GetHeightOfARow() = 0;
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/**
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* Returns the number of options in the listbox
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*/
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virtual PRInt32 GetNumberOfOptions() = 0;
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/**
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*
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*/
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virtual void SyncViewWithFrame() = 0;
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/**
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* Called by combobox when it's about to drop down
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*/
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virtual void AboutToDropDown() = 0;
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/**
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* Called by combobox when it's about to roll up
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*/
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virtual void AboutToRollup() = 0;
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/**
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* Fire on change (used by combobox)
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*/
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virtual void FireOnChange() = 0;
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/**
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* Tell the selected list to roll up and ensure that the proper index is
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* selected, possibly firing onChange if the index has changed
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*
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* @param aIndex the index to actually select
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*/
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virtual void ComboboxFinish(PRInt32 aIndex) = 0;
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/**
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* Notification that the content has been reset
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*/
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virtual void OnContentReset() = 0;
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};
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#endif
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