mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-13 23:17:57 +00:00
137 lines
4.5 KiB
C++
137 lines
4.5 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: NPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* The contents of this file are subject to the Netscape Public License
|
|
* Version 1.1 (the "License"); you may not use this file except in
|
|
* compliance with the License. You may obtain a copy of the License at
|
|
* http://www.mozilla.org/NPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
* for the specific language governing rights and limitations under the
|
|
* License.
|
|
*
|
|
* The Original Code is mozilla.org code.
|
|
*
|
|
* The Initial Developer of the Original Code is
|
|
* Netscape Communications Corporation.
|
|
* Portions created by the Initial Developer are Copyright (C) 1998
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either the GNU General Public License Version 2 or later (the "GPL"), or
|
|
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
|
* in which case the provisions of the GPL or the LGPL are applicable instead
|
|
* of those above. If you wish to allow use of your version of this file only
|
|
* under the terms of either the GPL or the LGPL, and not to allow others to
|
|
* use your version of this file under the terms of the NPL, indicate your
|
|
* decision by deleting the provisions above and replace them with the notice
|
|
* and other provisions required by the GPL or the LGPL. If you do not delete
|
|
* the provisions above, a recipient may use your version of this file under
|
|
* the terms of any one of the NPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK ***** */
|
|
|
|
#ifndef nsIComboboxControlFrame_h___
|
|
#define nsIComboboxControlFrame_h___
|
|
|
|
#include "nsISupports.h"
|
|
#include "nsFont.h"
|
|
|
|
class nsIPresContext;
|
|
class nsString;
|
|
class nsIContent;
|
|
class nsVoidArray;
|
|
class nsCSSFrameConstructor;
|
|
|
|
|
|
// IID for the nsIComboboxControlFrame class
|
|
#define NS_ICOMBOBOXCONTROLFRAME_IID \
|
|
{ 0x6961f791, 0xa662, 0x11d2, \
|
|
{ 0x8d, 0xcf, 0x0, 0x60, 0x97, 0x3, 0xc1, 0x4e } }
|
|
|
|
/**
|
|
* nsIComboboxControlFrame is the common interface for frames of form controls. It
|
|
* provides a uniform way of creating widgets, resizing, and painting.
|
|
* @see nsLeafFrame and its base classes for more info
|
|
*/
|
|
class nsIComboboxControlFrame : public nsISupports {
|
|
|
|
public:
|
|
NS_DEFINE_STATIC_IID_ACCESSOR(NS_ICOMBOBOXCONTROLFRAME_IID)
|
|
|
|
/**
|
|
* Indicates whether the list is dropped down
|
|
*/
|
|
NS_IMETHOD IsDroppedDown(PRBool * aDoDropDown) = 0;
|
|
|
|
/**
|
|
* Shows or hides the drop down
|
|
*/
|
|
NS_IMETHOD ShowDropDown(PRBool aDoDropDown) = 0;
|
|
|
|
/**
|
|
* Gets the Drop Down List
|
|
*/
|
|
NS_IMETHOD GetDropDown(nsIFrame** aDropDownFrame) = 0;
|
|
|
|
/**
|
|
* Sets the Drop Down List
|
|
*/
|
|
NS_IMETHOD SetDropDown(nsIFrame* aDropDownFrame) = 0;
|
|
|
|
/**
|
|
* Tells the combobox to roll up
|
|
*/
|
|
NS_IMETHOD RollupFromList(nsIPresContext* aPresContext) = 0;
|
|
|
|
/**
|
|
* Redisplay the selected text (will do nothing if text has not changed)
|
|
*/
|
|
NS_IMETHOD RedisplaySelectedText() = 0;
|
|
|
|
/**
|
|
* Method for the listbox to notify the combobox that onChange has been fired
|
|
*/
|
|
NS_IMETHOD SetNeedToFireOnChange(PRBool aNeedToFireOnChange) = 0;
|
|
|
|
/**
|
|
*
|
|
*/
|
|
NS_IMETHOD AbsolutelyPositionDropDown() = 0;
|
|
|
|
/**
|
|
*
|
|
*/
|
|
NS_IMETHOD GetAbsoluteRect(nsRect* aRect) = 0;
|
|
|
|
/**
|
|
*
|
|
*/
|
|
NS_IMETHOD SetFrameConstructor(nsCSSFrameConstructor *aConstructor) = 0;
|
|
|
|
/**
|
|
* This returns the index of the item that is currently being displayed
|
|
* in the display area. It may differ from what the currently Selected index
|
|
* is in in the dropdown.
|
|
*
|
|
* Detailed explanation:
|
|
* When the dropdown is dropped down via a mouse click and the user moves the mouse
|
|
* up and down without clicking, the currently selected item is being tracking inside
|
|
* the dropdown, but the combobox is not being updated. When the user selects items
|
|
* with the arrow keys, the combobox is being updated. So when the user clicks outside
|
|
* the dropdown and it needs to roll up it has to decide whether to keep the current
|
|
* selection or not. This method is used to get the current index in the combobox to
|
|
* compare it to the current index in the dropdown to see if the combox has been updated
|
|
* and that way it knows whether to "cancel" the the current selection residing in the
|
|
* dropdown. Or whether to leave the selection alone.
|
|
*/
|
|
NS_IMETHOD GetIndexOfDisplayArea(PRInt32* aSelectedIndex) = 0;
|
|
};
|
|
|
|
#endif
|
|
|