Avoid potential negative array index access to cached text.
[LibreOffice.git] / toolkit / source / controls / filectrl.cxx
blobf1b476220bcde21e614f9b5ed7349e467720f180
1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 /*
3 * This file is part of the LibreOffice project.
5 * This Source Code Form is subject to the terms of the Mozilla Public
6 * License, v. 2.0. If a copy of the MPL was not distributed with this
7 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
9 * This file incorporates work covered by the following license notice:
11 * Licensed to the Apache Software Foundation (ASF) under one or more
12 * contributor license agreements. See the NOTICE file distributed
13 * with this work for additional information regarding copyright
14 * ownership. The ASF licenses this file to you under the Apache
15 * License, Version 2.0 (the "License"); you may not use this file
16 * except in compliance with the License. You may obtain a copy of
17 * the License at http://www.apache.org/licenses/LICENSE-2.0 .
20 #include <controls/filectrl.hxx>
22 #include <com/sun/star/ui/dialogs/FilePicker.hpp>
23 #include <com/sun/star/ui/dialogs/TemplateDescription.hpp>
24 #include <comphelper/processfactory.hxx>
25 #include <osl/file.h>
26 #include <svl/svlresid.hxx>
27 #include <svl/svl.hrc>
28 #include <comphelper/diagnose_ex.hxx>
29 #include <tools/urlobj.hxx>
30 #include <vcl/toolkit/edit.hxx>
32 using namespace ::com::sun::star::uno;
33 using namespace ::com::sun::star::lang;
34 using namespace ::com::sun::star::ui;
37 FileControl::FileControl( vcl::Window* pParent, WinBits nStyle ) :
38 Window( pParent, nStyle|WB_DIALOGCONTROL ),
39 maEdit( VclPtr<Edit>::Create(this, (nStyle&(~WB_BORDER))|WB_NOTABSTOP) ),
40 maButton( VclPtr<PushButton>::Create( this, (nStyle&(~WB_BORDER))|WB_NOLIGHTBORDER|WB_NOPOINTERFOCUS|WB_NOTABSTOP ) ),
41 maButtonText( SvlResId(STR_FILECTRL_BUTTONTEXT) ),
42 mnInternalFlags( FileControlMode_Internal::ORIGINALBUTTONTEXT )
44 maButton->SetClickHdl( LINK( this, FileControl, ButtonHdl ) );
46 maButton->Show();
47 maEdit->Show();
49 SetCompoundControl( true );
51 SetStyle( ImplInitStyle( GetStyle() ) );
55 WinBits FileControl::ImplInitStyle( WinBits nStyle )
57 if ( !( nStyle & WB_NOTABSTOP ) )
59 maEdit->SetStyle( (maEdit->GetStyle()|WB_TABSTOP)&(~WB_NOTABSTOP) );
60 maButton->SetStyle( (maButton->GetStyle()|WB_TABSTOP)&(~WB_NOTABSTOP) );
62 else
64 maEdit->SetStyle( (maEdit->GetStyle()|WB_NOTABSTOP)&(~WB_TABSTOP) );
65 maButton->SetStyle( (maButton->GetStyle()|WB_NOTABSTOP)&(~WB_TABSTOP) );
68 const WinBits nAlignmentStyle = ( WB_TOP | WB_VCENTER | WB_BOTTOM );
69 maEdit->SetStyle( ( maEdit->GetStyle() & ~nAlignmentStyle ) | ( nStyle & nAlignmentStyle ) );
71 if ( !(nStyle & WB_NOGROUP) )
72 nStyle |= WB_GROUP;
74 if ( !(nStyle & WB_NOBORDER ) )
75 nStyle |= WB_BORDER;
77 nStyle &= ~WB_TABSTOP;
79 return nStyle;
83 FileControl::~FileControl()
85 disposeOnce();
88 void FileControl::dispose()
90 maEdit.disposeAndClear();
91 maButton.disposeAndClear();
92 Window::dispose();
95 void FileControl::SetText( const OUString& rStr )
97 maEdit->SetText( rStr );
101 OUString FileControl::GetText() const
103 return maEdit->GetText();
107 void FileControl::StateChanged( StateChangedType nType )
109 if ( nType == StateChangedType::Enable )
111 maEdit->Enable( IsEnabled() );
112 maButton->Enable( IsEnabled() );
114 else if ( nType == StateChangedType::Zoom )
116 GetEdit().SetZoom( GetZoom() );
117 GetButton().SetZoom( GetZoom() );
119 else if ( nType == StateChangedType::Style )
121 SetStyle( ImplInitStyle( GetStyle() ) );
123 else if ( nType == StateChangedType::ControlFont )
125 GetEdit().SetControlFont( GetControlFont() );
126 // Only use height of the button, as in HTML
127 // always Courier is used
128 vcl::Font aFont = GetButton().GetControlFont();
129 aFont.SetFontSize( GetControlFont().GetFontSize() );
130 GetButton().SetControlFont( aFont );
132 else if ( nType == StateChangedType::ControlForeground )
134 GetEdit().SetControlForeground( GetControlForeground() );
135 GetButton().SetControlForeground( GetControlForeground() );
137 else if ( nType == StateChangedType::ControlBackground )
139 GetEdit().SetControlBackground( GetControlBackground() );
140 GetButton().SetControlBackground( GetControlBackground() );
142 Window::StateChanged( nType );
146 void FileControl::Resize()
148 static const tools::Long ButtonBorder = 10;
150 if( mnInternalFlags & FileControlMode_Internal::INRESIZE )
151 return;
152 mnInternalFlags |= FileControlMode_Internal::INRESIZE;//InResize = sal_True
154 Size aOutSz = GetOutputSizePixel();
155 tools::Long nButtonTextWidth = maButton->GetTextWidth( maButtonText );
156 if ( !(mnInternalFlags & FileControlMode_Internal::ORIGINALBUTTONTEXT) ||
157 ( nButtonTextWidth < aOutSz.Width()/3 ) )
159 maButton->SetText( maButtonText );
161 else
163 OUString aSmallText( "..." );
164 maButton->SetText( aSmallText );
165 nButtonTextWidth = maButton->GetTextWidth( aSmallText );
168 tools::Long nButtonWidth = nButtonTextWidth+ButtonBorder;
169 maEdit->setPosSizePixel( 0, 0, aOutSz.Width()-nButtonWidth, aOutSz.Height() );
170 maButton->setPosSizePixel( aOutSz.Width()-nButtonWidth, 0, nButtonWidth, aOutSz.Height() );
172 mnInternalFlags &= ~FileControlMode_Internal::INRESIZE; //InResize = sal_False
176 void FileControl::GetFocus()
178 if (!maEdit || maEdit->isDisposed())
179 return;
180 maEdit->GrabFocus();
183 void FileControl::SetEditModifyHdl( const Link<Edit&,void>& rLink )
185 if (!maEdit || maEdit->isDisposed())
186 return;
187 maEdit->SetModifyHdl(rLink);
190 void FileControl::Draw( OutputDevice* pDev, const Point& rPos, SystemTextColorFlags nFlags )
192 WinBits nOldEditStyle = GetEdit().GetStyle();
193 if ( GetStyle() & WB_BORDER )
194 GetEdit().SetStyle( nOldEditStyle|WB_BORDER );
195 Size aOrigSize(GetEdit().GetSizePixel());
196 GetEdit().SetSizePixel(GetSizePixel());
197 GetEdit().Draw( pDev, rPos, nFlags );
198 GetEdit().SetSizePixel(aOrigSize);
199 if ( GetStyle() & WB_BORDER )
200 GetEdit().SetStyle( nOldEditStyle );
203 IMPL_LINK_NOARG(FileControl, ButtonHdl, Button*, void)
207 Reference< XComponentContext > xContext = comphelper::getProcessComponentContext();
208 Reference < dialogs::XFilePicker3 > xFilePicker = dialogs::FilePicker::createWithMode( xContext, dialogs::TemplateDescription::FILEOPEN_SIMPLE );
209 // transform the system notation text into a file URL
210 OUString sSystemNotation = GetText(), sFileURL;
211 oslFileError nError = osl_getFileURLFromSystemPath( sSystemNotation.pData, &sFileURL.pData );
212 if ( nError == osl_File_E_INVAL )
213 sFileURL = GetText(); // #97709# Maybe URL is already a file URL...
215 //#90430# Check if URL is really a file URL
216 OUString aTmp;
217 if ( osl_getSystemPathFromFileURL( sFileURL.pData, &aTmp.pData ) == osl_File_E_None )
219 // initially set this directory
220 xFilePicker->setDisplayDirectory( sFileURL );
223 if ( xFilePicker->execute() )
225 Sequence < OUString > aPathSeq = xFilePicker->getSelectedFiles();
227 if ( aPathSeq.hasElements() )
229 OUString aNewText = aPathSeq[0];
230 INetURLObject aObj( aNewText );
231 if ( aObj.GetProtocol() == INetProtocol::File )
232 aNewText = aObj.PathToFileName();
233 SetText( aNewText );
234 maEdit->GetModifyHdl().Call( *maEdit );
238 catch( const Exception& )
240 TOOLS_WARN_EXCEPTION( "toolkit", "FileControl::ImplBrowseFile: caught an exception while executing the file picker!" );
244 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */