RetroZilla/webshell/tests/viewer/windows/nsTextHelper.cpp

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2015-10-21 05:03:22 +02:00
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla 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/MPL/
*
* 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 of 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 MPL, 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 MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsTextHelper.h"
#include "nsToolkit.h"
#include "nsColor.h"
#include "nsGUIEvent.h"
#include "nsString.h"
#include "nsStringUtil.h"
#include <windows.h>
NS_METHOD nsTextHelper::PreCreateWidget(nsWidgetInitData *aInitData)
{
if (nsnull != aInitData) {
nsTextWidgetInitData* data = (nsTextWidgetInitData *) aInitData;
mIsPassword = data->mIsPassword;
mIsReadOnly = data->mIsReadOnly;
}
return NS_OK;
}
NS_METHOD nsTextHelper::SetMaxTextLength(PRUint32 aChars)
{
::SendMessage(mWnd, EM_SETLIMITTEXT, (WPARAM) (INT)aChars, 0);
return NS_OK;
}
NS_METHOD nsTextHelper::GetText(nsString& aTextBuffer, PRUint32 aBufferSize, PRUint32& aActualSize) {
int length = GetWindowTextLength(mWnd);
int bufLength = length + 1;
NS_ALLOC_CHAR_BUF(buf, 512, bufLength);
int charsCopied = GetWindowText(mWnd, buf, bufLength);
aTextBuffer.SetLength(0);
aTextBuffer.AppendWithConversion(buf);
NS_FREE_CHAR_BUF(buf);
aActualSize = charsCopied;
return NS_OK;
}
NS_METHOD nsTextHelper::SetText(const nsString &aText, PRUint32& aActualSize)
{
mText = aText;
SetWindowText(mWnd, NS_LossyConvertUCS2toASCII(aText).get());
aActualSize = aText.Length();
return NS_OK;
}
NS_METHOD nsTextHelper::InsertText(const nsString &aText, PRUint32 aStartPos, PRUint32 aEndPos, PRUint32& aActualSize)
{
nsString currentText;
PRUint32 actualSize;
GetText(currentText, 256, actualSize);
nsString newText(aText);
currentText.Insert(newText.get(), aStartPos, aText.Length());
SetText(currentText,actualSize);
aActualSize = aText.Length();
mText = currentText;
return NS_OK;
}
NS_METHOD nsTextHelper::RemoveText()
{
SetWindowText(mWnd, "");
return NS_OK;
}
NS_METHOD nsTextHelper::SetPassword(PRBool aIsPassword)
{
mIsPassword = aIsPassword;
return NS_OK;
}
NS_METHOD nsTextHelper::SetReadOnly(PRBool aReadOnlyFlag, PRBool& aOldFlag)
{
aOldFlag = mIsReadOnly;
mIsReadOnly = aReadOnlyFlag;
// Update the widget
::SendMessage(mWnd, EM_SETREADONLY, (WPARAM) (BOOL)aReadOnlyFlag, (LPARAM)0);
return NS_OK;
}
NS_METHOD nsTextHelper::SelectAll()
{
::SendMessage(mWnd, EM_SETSEL, (WPARAM) 0, (LPARAM)-1);
return NS_OK;
}
NS_METHOD nsTextHelper::SetSelection(PRUint32 aStartSel, PRUint32 aEndSel)
{
::SendMessage(mWnd, EM_SETSEL, (WPARAM) (INT)aStartSel, (INT) (LPDWORD)aEndSel);
return NS_OK;
}
NS_METHOD nsTextHelper::GetSelection(PRUint32 *aStartSel, PRUint32 *aEndSel)
{
::SendMessage(mWnd, EM_GETSEL, (WPARAM) (LPDWORD)aStartSel, (LPARAM) (LPDWORD)aEndSel);
return NS_OK;
}
NS_METHOD nsTextHelper::SetCaretPosition(PRUint32 aPosition)
{
SetSelection(aPosition, aPosition);
return NS_OK;
}
NS_METHOD nsTextHelper::GetCaretPosition(PRUint32& aPos)
{
PRUint32 start;
PRUint32 end;
GetSelection(&start, &end);
if (start == end) {
aPos = start;
}
else {
aPos = PRUint32(-1);/* XXX is this right??? scary cast! */
}
return NS_OK;
}
//-------------------------------------------------------------------------
//
// nsTextHelper constructor
//
//-------------------------------------------------------------------------
nsTextHelper::nsTextHelper() : nsWindow(), nsITextWidget()
{
mIsReadOnly = PR_FALSE;
mIsPassword = PR_FALSE;
}
//-------------------------------------------------------------------------
//
// nsTextHelper destructor
//
//-------------------------------------------------------------------------
nsTextHelper::~nsTextHelper()
{
}
//-------------------------------------------------------------------------
//
// return the window class name and initialize the class if needed
//
//-------------------------------------------------------------------------
LPCWSTR nsTextHelper::WindowClassW()
{
return(L"EDIT");
}
//-------------------------------------------------------------------------
//
// return the window class name and initialize the class if needed
//
//-------------------------------------------------------------------------
LPCTSTR nsTextHelper::WindowClass()
{
return("EDIT");
}
//-------------------------------------------------------------------------
//
// return window styles
//
//-------------------------------------------------------------------------
DWORD nsTextHelper::WindowStyle()
{
DWORD style = ES_AUTOHSCROLL | WS_BORDER | WS_CHILD | WS_CLIPSIBLINGS | ES_NOHIDESEL;
if (mIsPassword)
style = style | ES_PASSWORD;
if (mIsReadOnly)
style = style | ES_READONLY;
return style;
}
//-------------------------------------------------------------------------
//
// return window extended styles
//
//-------------------------------------------------------------------------
DWORD nsTextHelper::WindowExStyle()
{
return 0;
}
//-------------------------------------------------------------------------
//
// Clear window before paint
//
//-------------------------------------------------------------------------
PRBool nsTextHelper::AutoErase()
{
return(PR_TRUE);
}