116 lines
3.5 KiB
C
116 lines
3.5 KiB
C
|
/*
|
||
|
|
* @doc INTERNAL
|
||
|
|
*
|
||
|
|
* @module _URLSUP.H URL detection support |
|
||
|
|
*
|
||
|
|
* Author: alexgo (4/1/96)
|
||
|
|
*
|
||
|
|
* Copyright (c) 1995-2000, Microsoft Corporation. All rights reserved.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef _URLSUP_H_
|
||
|
|
#define _URLSUP_H_
|
||
|
|
|
||
|
|
#include "_dfreeze.h"
|
||
|
|
#include "_notmgr.h"
|
||
|
|
#include "_range.h"
|
||
|
|
|
||
|
|
class CTxtEdit;
|
||
|
|
class IUndoBuilder;
|
||
|
|
|
||
|
|
// Maximum URL length. It's a good thing to have a protection like
|
||
|
|
// this to make sure we don't select the whole document; and we really
|
||
|
|
// need this for space-containing URLs.
|
||
|
|
|
||
|
|
// Note (keithcu). I bumped these values up because of RAID 7210. I thought about
|
||
|
|
// removing this support altogether, but it's nice to have and speeds up
|
||
|
|
// performance when you are inserting angle brackets inside URLs and you
|
||
|
|
// do the left one first.
|
||
|
|
#define URL_MAX_SIZE 4096
|
||
|
|
|
||
|
|
|
||
|
|
// for MoveByDelimiter
|
||
|
|
#define URL_EATWHITESPACE 32
|
||
|
|
#define URL_STOPATWHITESPACE 1
|
||
|
|
#define URL_EATNONWHITESPACE 0
|
||
|
|
#define URL_STOPATNONWHITESPACE 2
|
||
|
|
#define URL_EATPUNCT 0
|
||
|
|
#define URL_STOPATPUNCT 4
|
||
|
|
#define URL_EATNONPUNCT 0
|
||
|
|
#define URL_STOPATNONPUNCT 8
|
||
|
|
#define URL_STOPATCHAR 16
|
||
|
|
|
||
|
|
// need this one to initialize a scan with something invalid
|
||
|
|
#define URL_INVALID_DELIMITER TEXT(' ')
|
||
|
|
|
||
|
|
#define LEFTANGLEBRACKET TEXT('<')
|
||
|
|
#define RIGHTANGLEBRACKET TEXT('>')
|
||
|
|
|
||
|
|
/*
|
||
|
|
* CDetectURL
|
||
|
|
*
|
||
|
|
* @class This class watches edit changes and automatically
|
||
|
|
* changes detected URL's into links (see CFE_LINK && EN_LINK)
|
||
|
|
*/
|
||
|
|
class CDetectURL : public ITxNotify
|
||
|
|
{
|
||
|
|
//@access Public Methods
|
||
|
|
public:
|
||
|
|
// constructor/destructor
|
||
|
|
|
||
|
|
CDetectURL(CTxtEdit *ped); //@cmember constructor
|
||
|
|
~CDetectURL(); //@cmember destructor
|
||
|
|
|
||
|
|
// ITxNotify methods
|
||
|
|
//@cmember Called before a change
|
||
|
|
virtual void OnPreReplaceRange( LONG cp, LONG cchDel, LONG cchNew,
|
||
|
|
LONG cpFormatMin, LONG cpFormatMax, NOTIFY_DATA *pNotifyData );
|
||
|
|
//@cmember Called after a change
|
||
|
|
virtual void OnPostReplaceRange( LONG cp, LONG cchDel, LONG cchNew,
|
||
|
|
LONG cpFormatMin, LONG cpFormatMax, NOTIFY_DATA *pNotifyData );
|
||
|
|
virtual void Zombie(); //@cmember Turn into a zombie
|
||
|
|
|
||
|
|
// useful methods
|
||
|
|
|
||
|
|
void ScanAndUpdate(IUndoBuilder *publdr);//@cmember Scan changed area
|
||
|
|
// & update link status
|
||
|
|
//@cmember Return TRUE if text is a URL
|
||
|
|
BOOL IsURL(CTxtPtr &tp, LONG cch, BOOL *pfURLLeadin);
|
||
|
|
|
||
|
|
//@access Private Methods and Data
|
||
|
|
private:
|
||
|
|
|
||
|
|
// Worker routines for ScanAndUpdate
|
||
|
|
BOOL GetScanRegion(LONG& cpStart, LONG& cpEnd);//@cmember Get region to
|
||
|
|
// check & clear accumulator
|
||
|
|
|
||
|
|
static void ExpandToURL(CTxtRange& rg, LONG &cchAdvance);
|
||
|
|
//@cmember Expand range to next
|
||
|
|
// URL candidate
|
||
|
|
static void SetURLEffects(CTxtRange& rg, IUndoBuilder *publdr); //@cmember Set
|
||
|
|
// desired URL effects
|
||
|
|
|
||
|
|
//@cmember Remove URL effects if
|
||
|
|
// appropriate
|
||
|
|
void CheckAndCleanBogusURL(CTxtRange& rg, BOOL &fDidClean, IUndoBuilder *publdr);
|
||
|
|
|
||
|
|
//@cmember Scan along for white
|
||
|
|
// space / not whitespace,
|
||
|
|
// punctuation / non punctuation
|
||
|
|
// and remember what stopped scan
|
||
|
|
static LONG MoveByDelimiters(const CTxtPtr& tp, LONG iDir, DWORD grfDelimiters,
|
||
|
|
WCHAR *pchStopChar);
|
||
|
|
|
||
|
|
static LONG GetAngleBracket(CTxtPtr &tp, LONG cch = 0);
|
||
|
|
static WCHAR BraceMatch(WCHAR chEnclosing);
|
||
|
|
|
||
|
|
CTxtEdit * _ped; //@cmember Edit context
|
||
|
|
CAccumDisplayChanges _adc; //@cmember Change accumulator
|
||
|
|
|
||
|
|
// FUTURE (alexgo): we may want to add more options to detection,
|
||
|
|
// such as the charformat to use on detection, etc.
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif // _URLSUP_H_
|
||
|
|
|