зеркало из https://github.com/mozilla/pjs.git
120 строки
5.0 KiB
C++
120 строки
5.0 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
*
|
|
* The contents of this file are subject to the Netscape Public License
|
|
* Version 1.0 (the "NPL"); you may not use this file except in
|
|
* compliance with the NPL. You may obtain a copy of the NPL at
|
|
* http://www.mozilla.org/NPL/
|
|
*
|
|
* Software distributed under the NPL is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
|
|
* for the specific language governing rights and limitations under the
|
|
* NPL.
|
|
*
|
|
* The Initial Developer of this code under the NPL is Netscape
|
|
* Communications Corporation. Portions created by Netscape are
|
|
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
|
|
* Reserved.
|
|
*/
|
|
|
|
/*
|
|
* !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
|
|
* NOTE!! This is not a general class, but specific to layout and frames.
|
|
* Consumers looking for the general selection interface should look at
|
|
* nsIDOMSelection.
|
|
*/
|
|
|
|
#ifndef nsIFrameSelection_h___
|
|
#define nsIFrameSelection_h___
|
|
|
|
#include "nsISupports.h"
|
|
#include "nsIFrame.h"
|
|
#include "nsIFocusTracker.h"
|
|
|
|
// IID for the nsIFrameSelection interface
|
|
#define NS_IFRAMESELECTION_IID \
|
|
{ 0xf46e4171, 0xdeaa, 0x11d1, \
|
|
{ 0x97, 0xfc, 0x0, 0x60, 0x97, 0x3, 0xc1, 0x4e } }
|
|
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
// Selection interface
|
|
class nsIFrameSelection : public nsISupports {
|
|
public:
|
|
static const nsIID& GetIID() { static nsIID iid = NS_IFRAMESELECTION_IID; return iid; }
|
|
|
|
/** Init will initialize the frame selector with the necessary focus tracker to
|
|
* be used by most of the methods
|
|
* @param aTracker is the parameter to be used for most of the other calls for callbacks ect
|
|
*/
|
|
NS_IMETHOD Init(nsIFocusTracker *aTracker) = 0;
|
|
|
|
/** ShutDown will be called when the owner of the frame selection is shutting down
|
|
* this should be the time to release all member variable interfaces. all methods
|
|
* called after ShutDown should return NS_ERROR_FAILURE
|
|
*/
|
|
NS_IMETHOD ShutDown() = 0;
|
|
|
|
/** HandleKeyEvent will accept an event and frame and
|
|
* will return NS_OK if it handles the event or NS_COMFALSE if not.
|
|
* <P>DOES NOT ADDREF<P>
|
|
* @param aGuiEvent is the event that should be dealt with by aFocusFrame
|
|
* @param aFrame is the frame that MAY handle the event
|
|
*/
|
|
NS_IMETHOD HandleTextEvent(nsGUIEvent *aGuiEvent) = 0;
|
|
|
|
/** HandleKeyEvent will accept an event and frame and
|
|
* will return NS_OK if it handles the event or NS_COMFALSE if not.
|
|
* <P>DOES NOT ADDREF<P>
|
|
* @param aGuiEvent is the event that should be dealt with by aFocusFrame
|
|
* @param aFrame is the frame that MAY handle the event
|
|
*/
|
|
NS_IMETHOD HandleKeyEvent(nsGUIEvent *aGuiEvent) = 0;
|
|
|
|
/** TakeFocus will take the focus to the new frame at the new offset and
|
|
* will either extend the selection from the old anchor, or replace the old anchor.
|
|
* the old anchor and focus position may also be used to deselect things
|
|
* @param aNewfocus is the content that wants the focus
|
|
* @param aContentOffset is the content offset of the parent aNewFocus
|
|
* @param aContentOffsetEnd is the content offset of the parent aNewFocus and is specified different
|
|
* when you need to select to and include both start and end points
|
|
* @param aContinueSelection is the flag that tells the selection to keep the old anchor point or not.
|
|
*/
|
|
NS_IMETHOD TakeFocus(nsIContent *aNewFocus, PRUint32 aContentOffset, PRUint32 aContentEndOffset , PRBool aContinueSelection) = 0;
|
|
|
|
/** EnableFrameNotification
|
|
* mutch like start batching, except all dirty calls are ignored. no notifications will go
|
|
* out until enableNotifications with a PR_TRUE is called
|
|
*/
|
|
NS_IMETHOD EnableFrameNotification(PRBool aEnable) = 0;
|
|
|
|
/** Lookup Selection
|
|
* returns in frame coordinates the selection beginning and ending with the type of selection given
|
|
* @param aContent is the content asking
|
|
* @param aContentOffset is the starting content boundary
|
|
* @param aContentLength is the length of the content piece asking
|
|
* @param aStart start return frame indexed value
|
|
* @param aEnd end return frame indexed value
|
|
* @param aDrawSelected return value if this offset,length has anything in the selected area
|
|
* @param aFlag what type of selection not used now
|
|
*/
|
|
NS_IMETHOD LookUpSelection(nsIContent *aContent, PRInt32 aContentOffset, PRInt32 aContentLength,
|
|
PRInt32 *aStart, PRInt32 *aEnd, PRBool *aDrawSelected, PRUint32 aFlag/*not used*/) = 0;
|
|
|
|
/** SetMouseDownState(PRBool);
|
|
* sets the mouse state to aState for resons of drag state.
|
|
* @param aState is the new state of mousedown
|
|
*/
|
|
NS_IMETHOD SetMouseDownState(PRBool aState)=0;
|
|
|
|
/** GetMouseDownState(PRBool *);
|
|
* gets the mouse state to aState for resons of drag state.
|
|
* @param aState will hold the state of mousedown
|
|
*/
|
|
NS_IMETHOD GetMouseDownState(PRBool *aState)=0;
|
|
|
|
};
|
|
|
|
|
|
#endif /* nsIFrameSelection_h___ */
|