teraterm/teraterm/clipboar.c

/* Tera Term
 Copyright(C) 1994-1998 T. Teranishi
 All rights reserved. */

/* TERATERM.EXE, Clipboard routines */
#include "teraterm.h"
#include "tttypes.h"
#include <string.h>
#include <stdlib.h>
#include <stdio.h>

#include "ttwinman.h"
#include "ttcommon.h"

#include "clipboar.h"
#include "tt_res.h"

// for clipboard copy
static HGLOBAL CBCopyHandle = NULL;
static PCHAR CBCopyPtr = NULL;

// for clipboard paste
static HGLOBAL CBMemHandle = NULL;
static PCHAR CBMemPtr = NULL;
static LONG CBMemPtr2 = 0;
static BOOL CBAddCR = FALSE;
static BYTE CBByte;
static BOOL CBRetrySend;
static BOOL CBRetryEcho;
static BOOL CBSendCR;
static BOOL CBDDE;

static HFONT DlgClipboardFont;

PCHAR CBOpen(LONG MemSize)
{
  if (MemSize==0) return (NULL);
  if (CBCopyHandle!=NULL) return (NULL);
  CBCopyPtr = NULL;
  CBCopyHandle = GlobalAlloc(GMEM_MOVEABLE, MemSize);
  if (CBCopyHandle == NULL) 
    MessageBeep(0);
  else {
    CBCopyPtr = GlobalLock(CBCopyHandle);
    if (CBCopyPtr == NULL)
    {
      GlobalFree(CBCopyHandle);
      CBCopyHandle = NULL;
      MessageBeep(0);
    }
  }
  return (CBCopyPtr);
}

void CBClose()
{
  BOOL Empty;
  if (CBCopyHandle==NULL) return;

  Empty = FALSE;
  if (CBCopyPtr!=NULL)
    Empty = (CBCopyPtr[0]==0);

  GlobalUnlock(CBCopyHandle);
  CBCopyPtr = NULL;

  if (OpenClipboard(HVTWin))
  {
    EmptyClipboard();
    if (! Empty)
      SetClipboardData(CF_TEXT, CBCopyHandle);
    CloseClipboard();
  }
  CBCopyHandle = NULL;
}

void CBStartPaste(HWND HWin, BOOL AddCR,
                  int BuffSize, PCHAR DataPtr, int DataSize)
//
//  DataPtr and DataSize are used only for DDE
//        For clipboard, BuffSize should be 0
//        DataSize should be <= BuffSize
{
  UINT Cf;

  if (! cv.Ready) return;
  if (TalkStatus!=IdTalkKeyb) return;

  CBAddCR = AddCR;

  if (BuffSize==0) // for clipboard
  {
    if (IsClipboardFormatAvailable(CF_TEXT))
      Cf = CF_TEXT;
    else if (IsClipboardFormatAvailable(CF_OEMTEXT))
      Cf = CF_OEMTEXT;
    else return;
  }

  CBMemHandle = NULL;
  CBMemPtr = NULL;
  CBMemPtr2 = 0;
  CBDDE = FALSE;
  if (BuffSize==0) //clipboard
  {
    if (OpenClipboard(HWin))
      CBMemHandle = GetClipboardData(Cf);
    if (CBMemHandle!=NULL) TalkStatus=IdTalkCB;
  }
  else { // dde
    CBMemHandle = GlobalAlloc(GHND,BuffSize);
    if (CBMemHandle != NULL)
    {
      CBDDE = TRUE;
      CBMemPtr = GlobalLock(CBMemHandle);
      if (CBMemPtr != NULL)
      {
        memcpy(CBMemPtr,DataPtr,DataSize);
        GlobalUnlock(CBMemHandle);
        CBMemPtr=NULL;
        TalkStatus=IdTalkCB;
      }
    }
  }
  CBRetrySend = FALSE;
  CBRetryEcho = FALSE;
  CBSendCR = FALSE;
  if (TalkStatus != IdTalkCB) CBEndPaste();
}

// �����������N���b�v�{�[�h������DDE�f�[�^���[�������������B
//
// CBMemHandle�n���h�����O���[�o�������������A�����������I�������������A
// �����N���b�v�{�[�h������DDE�f�[�^�������������������������i�j�����������\�������j�B
// �����A�f�[�^���� null-terminate �����������������O�����������������A�������f�[�^����
// �����������B
// (2006.11.6 yutaka)
void CBSend()
{
  int c;
  BOOL EndFlag;

  if (CBMemHandle==NULL) return;

  if (CBRetrySend)
  {
    CBRetryEcho = (ts.LocalEcho>0);
    c = CommTextOut(&cv,(PCHAR)&CBByte,1);
    CBRetrySend = (c==0);
    if (CBRetrySend) return;
  }

  if (CBRetryEcho)
  {
    c = CommTextEcho(&cv,(PCHAR)&CBByte,1);
    CBRetryEcho = (c==0);
    if (CBRetryEcho) return;
  }

  CBMemPtr = GlobalLock(CBMemHandle);
  if (CBMemPtr==NULL) return;
  
  do {
    if (CBSendCR && (CBMemPtr[CBMemPtr2]==0x0a))
      CBMemPtr2++;

    EndFlag = (CBMemPtr[CBMemPtr2]==0);
    if (! EndFlag)
    {
      CBByte = CBMemPtr[CBMemPtr2];
      CBMemPtr2++;
// Decoding characters which are encoded by MACRO
//   to support NUL character sending
//
//  [encoded character] --> [decoded character]
//         01 01        -->     00
//         01 02        -->     01
      if (CBByte==0x01) /* 0x01 from MACRO */
      {
        CBByte = CBMemPtr[CBMemPtr2];
        CBMemPtr2++;
        CBByte = CBByte - 1; // character just after 0x01
      }
    }
    else if (CBAddCR)
    {
          EndFlag = FALSE;
      CBAddCR = FALSE;
      CBByte = 0x0d;
    }
    else {
      CBEndPaste();
      return;
    }

    if (! EndFlag)
    {
      c = CommTextOut(&cv,(PCHAR)&CBByte,1);
      CBSendCR = (CBByte==0x0D);
      CBRetrySend = (c==0);
      if ((! CBRetrySend) &&
          (ts.LocalEcho>0))
      {
        c = CommTextEcho(&cv,(PCHAR)&CBByte,1);
        CBRetryEcho = (c==0);
      }
    }
    else
      c=0;
  }
  while (c>0);

  if (CBMemPtr!=NULL)
  {
    GlobalUnlock(CBMemHandle);
    CBMemPtr=NULL;
  }
}

void CBEndPaste()
{
  TalkStatus = IdTalkKeyb;

  if (CBMemHandle!=NULL)
  {
    if (CBMemPtr!=NULL)
      GlobalUnlock(CBMemHandle);
    if (CBDDE)
      GlobalFree(CBMemHandle);
  }
  if (!CBDDE) CloseClipboard();

  CBDDE = FALSE;
  CBMemHandle = NULL;
  CBMemPtr = NULL;
  CBMemPtr2 = 0;
  CBAddCR = FALSE;
}


static char *ClipboardPtr = NULL;
static int PasteCanceled = 0;

static LRESULT CALLBACK OnClipboardDlgProc(HWND hDlgWnd, UINT msg, WPARAM wp, LPARAM lp)
{
        POINT pt;
        //char *p;
        LOGFONT logfont;
        HFONT font;
        char uimsg[MAX_UIMSG];

        switch (msg) {
                case WM_INITDIALOG:
#if 0
                        for (p = ClipboardPtr; *p ; p++) {
                                char buf[20];
                                _snprintf_s(buf, sizeof(buf), _TRUNCATE, "%02x ", *p);
                                OutputDebugString(buf);
                        }
#endif

                        font = (HFONT)SendMessage(hDlgWnd, WM_GETFONT, 0, 0);
                        GetObject(font, sizeof(LOGFONT), &logfont);
                        if (get_lang_font("DLG_TAHOMA_FONT", hDlgWnd, &logfont, &DlgClipboardFont, ts.UILanguageFile)) {
                                SendDlgItemMessage(hDlgWnd, IDC_EDIT, WM_SETFONT, (WPARAM)DlgClipboardFont, MAKELPARAM(TRUE,0));
                                SendDlgItemMessage(hDlgWnd, IDC_CLIPBOARD_INFO, WM_SETFONT, (WPARAM)DlgClipboardFont, MAKELPARAM(TRUE,0));
                                SendDlgItemMessage(hDlgWnd, IDOK, WM_SETFONT, (WPARAM)DlgClipboardFont, MAKELPARAM(TRUE,0));
                                SendDlgItemMessage(hDlgWnd, IDCANCEL, WM_SETFONT, (WPARAM)DlgClipboardFont, MAKELPARAM(TRUE,0));
                        }
                        else {
                                DlgClipboardFont = NULL;
                        }

                        GetWindowText(hDlgWnd, uimsg, sizeof(uimsg));
                        get_lang_msg("DLG_CLIPBOARD_TITLE", ts.UIMsg, sizeof(ts.UIMsg), uimsg, ts.UILanguageFile);
                        SetWindowText(hDlgWnd, ts.UIMsg);
                        GetDlgItemText(hDlgWnd, IDC_CLIPBOARD_INFO, uimsg, sizeof(uimsg));
                        get_lang_msg("DLG_CLIPBOARD_INFO", ts.UIMsg, sizeof(ts.UIMsg), uimsg, ts.UILanguageFile);
                        SetDlgItemText(hDlgWnd, IDC_CLIPBOARD_INFO, ts.UIMsg);
                        GetDlgItemText(hDlgWnd, IDCANCEL, uimsg, sizeof(uimsg));
                        get_lang_msg("BTN_CANCEL", ts.UIMsg, sizeof(ts.UIMsg), uimsg, ts.UILanguageFile);
                        SetDlgItemText(hDlgWnd, IDCANCEL, ts.UIMsg);
                        GetDlgItemText(hDlgWnd, IDOK, uimsg, sizeof(uimsg));
                        get_lang_msg("BTN_OK", ts.UIMsg, sizeof(ts.UIMsg), uimsg, ts.UILanguageFile);
                        SetDlgItemText(hDlgWnd, IDOK, ts.UIMsg);

                        SendMessage(GetDlgItem(hDlgWnd, IDC_EDIT), WM_SETTEXT, 0, (LPARAM)ClipboardPtr);
                        
                        GetCursorPos(&pt);
                        SetWindowPos(hDlgWnd, NULL, pt.x, pt.y, 0, 0, SWP_NOSIZE | SWP_NOZORDER);
                        return TRUE;

                case WM_COMMAND:
                        switch (LOWORD(wp)) {
                                case IDOK:
                                {
                                        int len = SendMessage(GetDlgItem(hDlgWnd, IDC_EDIT), WM_GETTEXTLENGTH, 0, 0);
                                        HGLOBAL hMem;
                                        char *buf;

                                        hMem = GlobalAlloc(GMEM_MOVEABLE, len + 1);
                                        buf = GlobalLock(hMem);
                                        SendMessage(GetDlgItem(hDlgWnd, IDC_EDIT), WM_GETTEXT, len + 1, (LPARAM)buf);
                                        GlobalUnlock(hMem);

                                        EmptyClipboard();
                                        SetClipboardData(CF_TEXT, hMem);

                                        // hMem���N���b�v�{�[�h�������������������A�j�����������������B

                                        if (DlgClipboardFont != NULL) {
                                                DeleteObject(DlgClipboardFont);
                                        }

                                        EndDialog(hDlgWnd, IDOK);
                                }
                                        break;

                                case IDCANCEL:
                                        PasteCanceled = 1;

                                        if (DlgClipboardFont != NULL) {
                                                DeleteObject(DlgClipboardFont);
                                        }

                                        EndDialog(hDlgWnd, IDCANCEL);
                                        break;

                                default:
                                        return FALSE;
                        }

#if 0
                case WM_CLOSE:
                        PasteCanceled = 1;
                        EndDialog(hDlgWnd, 0);
                        return TRUE;
#endif

                default:
                        return FALSE;
        }
        return TRUE;
}

//
// �N���b�v�{�[�h�����s�R�[�h�����������������A�m�F�_�C�A���O���\�������B
// �N���b�v�{�[�h�����X�����\�B
//
// return 0: Cancel
//        1: Paste OK
//
// (2008.2.3 yutaka)
//
int CBStartPasteConfirmChange(HWND HWin)
{
        UINT Cf;
        HANDLE hText;
        char *pText;
        int pos;
        int ret = 0;

        if (ts.ConfirmChangePaste == 0)
                return 1;

        if (! cv.Ready) 
                goto error;
        if (TalkStatus!=IdTalkKeyb)
                goto error;

        if (IsClipboardFormatAvailable(CF_TEXT))
                Cf = CF_TEXT;
        else if (IsClipboardFormatAvailable(CF_OEMTEXT))
                Cf = CF_OEMTEXT;
        else 
                goto error;

        if (!OpenClipboard(HWin)) 
                goto error;

        hText = GetClipboardData(Cf);

        if (hText != NULL) {
                pText = (char *)GlobalLock(hText);
                pos = strcspn(pText, "\r\n");  // ���s����������������
                if (pText[pos] != '\0') {
                        ClipboardPtr = pText;
                        PasteCanceled = 0;
                        ret = DialogBox(hInst, MAKEINTRESOURCE(IDD_CLIPBOARD_DIALOG),
                                                        HVTWin, (DLGPROC)OnClipboardDlgProc);
                        if (ret == 0 || ret == -1) {
                                ret = GetLastError();
                        }

                        if (PasteCanceled) {
                                ret = 0;
                                GlobalUnlock(hText);
                                CloseClipboard();
                                goto error;
                        }

                }

                ret = 1;

                GlobalUnlock(hText);
        }

        CloseClipboard();

error:
        return (ret);
}