vcl/source/control/fixedhyper.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   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/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  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 .
  18  */
  19
  20 #include <vcl/event.hxx>
  21 #include <vcl/toolkit/fixedhyper.hxx>
  22 #include <vcl/settings.hxx>
  23 #include <vcl/svapp.hxx>
  24 #include <vcl/weld.hxx>
  25 #include <vcl/ptrstyle.hxx>
  26 #include <comphelper/anytostring.hxx>
  27 #include <comphelper/processfactory.hxx>
  28 #include <cppuhelper/exc_hlp.hxx>
  29
  30 #include <com/sun/star/system/XSystemShellExecute.hpp>
  31 #include <com/sun/star/system/SystemShellExecuteFlags.hpp>
  32 #include <com/sun/star/system/SystemShellExecute.hpp>
  33
  34 using namespace css;
  35
  36 FixedHyperlink::FixedHyperlink(vcl::Window* pParent, WinBits nWinStyle)
  37     : FixedText(pParent, nWinStyle)
  38     , m_nTextLen(0)
  39     , m_aOldPointer(PointerStyle::Arrow)
  40 {
  41     Initialize();
  42 }
  43
  44 void FixedHyperlink::Initialize()
  45 {
  46     // saves the old pointer
  47     m_aOldPointer = GetPointer();
  48     // changes the font
  49     vcl::Font aFont = GetControlFont( );
  50     // to underline
  51     aFont.SetUnderline( LINESTYLE_SINGLE );
  52     SetControlFont( aFont );
  53     // changes the color to link color
  54     SetControlForeground( Application::GetSettings().GetStyleSettings().GetLinkColor() );
  55     // calculates text len
  56     m_nTextLen = GetOutDev()->GetCtrlTextWidth( GetText() );
  57
  58     SetClickHdl(LINK(this, FixedHyperlink, HandleClick));
  59 }
  60
  61 bool FixedHyperlink::ImplIsOverText(Point aPosition) const
  62 {
  63     Size aSize = GetOutputSizePixel();
  64
  65     bool bIsOver = false;
  66
  67     if (GetStyle() & WB_RIGHT)
  68     {
  69         return aPosition.X() > (aSize.Width() - m_nTextLen);
  70     }
  71     else if (GetStyle() & WB_CENTER)
  72     {
  73         bIsOver = aPosition.X() > (aSize.Width() / 2 - m_nTextLen / 2) &&
  74                   aPosition.X() < (aSize.Width() / 2 + m_nTextLen / 2);
  75     }
  76     else
  77     {
  78         bIsOver = aPosition.X() < m_nTextLen;
  79     }
  80
  81     return bIsOver;
  82 }
  83
  84 void FixedHyperlink::MouseMove( const MouseEvent& rMEvt )
  85 {
  86     // changes the pointer if the control is enabled and the mouse is over the text.
  87     if ( !rMEvt.IsLeaveWindow() && IsEnabled() && ImplIsOverText(GetPointerPosPixel()) )
  88         SetPointer( PointerStyle::RefHand );
  89     else
  90         SetPointer( m_aOldPointer );
  91 }
  92
  93 void FixedHyperlink::MouseButtonUp( const MouseEvent& )
  94 {
  95     // calls the link if the control is enabled and the mouse is over the text.
  96     if ( IsEnabled() && ImplIsOverText(GetPointerPosPixel()) )
  97         ImplCallEventListenersAndHandler( VclEventId::ButtonClick, [this] () { m_aClickHdl.Call(*this); } );
  98 }
  99
 100 void FixedHyperlink::RequestHelp( const HelpEvent& rHEvt )
 101 {
 102     if ( IsEnabled() && ImplIsOverText(GetPointerPosPixel()) )
 103         FixedText::RequestHelp( rHEvt );
 104 }
 105
 106 void FixedHyperlink::GetFocus()
 107 {
 108     Size aSize = GetSizePixel();
 109     tools::Rectangle aFocusRect(Point(1, 1), Size(m_nTextLen + 4, aSize.Height() - 2));
 110     if (GetStyle() & WB_RIGHT)
 111         aFocusRect.Move(aSize.Width() - aFocusRect.getOpenWidth(), 0);
 112     else if (GetStyle() & WB_CENTER)
 113         aFocusRect.Move((aSize.Width() - aFocusRect.getOpenWidth()) / 2, 0);
 114
 115     Invalidate(aFocusRect);
 116     ShowFocus(aFocusRect);
 117 }
 118
 119 void FixedHyperlink::LoseFocus()
 120 {
 121     SetTextColor( GetControlForeground() );
 122     Invalidate(tools::Rectangle(Point(), GetSizePixel()));
 123     HideFocus();
 124 }
 125
 126 void FixedHyperlink::KeyInput( const KeyEvent& rKEvt )
 127 {
 128     switch ( rKEvt.GetKeyCode().GetCode() )
 129     {
 130         case KEY_SPACE:
 131         case KEY_RETURN:
 132             m_aClickHdl.Call( *this );
 133             break;
 134
 135         default:
 136             FixedText::KeyInput( rKEvt );
 137     }
 138 }
 139
 140 void FixedHyperlink::SetURL( const OUString& rNewURL )
 141 {
 142     m_sURL = rNewURL;
 143     SetQuickHelpText( m_sURL );
 144 }
 145
 146
 147 void FixedHyperlink::SetText(const OUString& rNewDescription)
 148 {
 149     FixedText::SetText(rNewDescription);
 150     m_nTextLen = GetOutDev()->GetCtrlTextWidth(GetText());
 151 }
 152
 153 bool FixedHyperlink::set_property(const OUString &rKey, const OUString &rValue)
 154 {
 155     if (rKey == "uri")
 156         SetURL(rValue);
 157     else
 158         return FixedText::set_property(rKey, rValue);
 159     return true;
 160 }
 161
 162 IMPL_LINK(FixedHyperlink, HandleClick, FixedHyperlink&, rHyperlink, void)
 163 {
 164     if ( rHyperlink.m_sURL.isEmpty() ) // Nothing to do, when the URL is empty
 165         return;
 166
 167     try
 168     {
 169         uno::Reference< system::XSystemShellExecute > xSystemShellExecute(
 170             system::SystemShellExecute::create(comphelper::getProcessComponentContext()));
 171         //throws css::lang::IllegalArgumentException, css::system::SystemShellExecuteException
 172         xSystemShellExecute->execute( rHyperlink.m_sURL, OUString(), system::SystemShellExecuteFlags::URIS_ONLY );
 173     }
 174     catch ( const uno::Exception& )
 175     {
 176         uno::Any exc(cppu::getCaughtException());
 177         OUString msg(comphelper::anyToString(exc));
 178         SolarMutexGuard g;
 179         std::shared_ptr<weld::MessageDialog> xErrorBox(
 180             Application::CreateMessageDialog(GetFrameWeld(), VclMessageType::Error, VclButtonsType::Ok, msg));
 181         xErrorBox->set_title(rHyperlink.GetText());
 182         xErrorBox->runAsync(xErrorBox, [](sal_Int32){});
 183     }
 184 }
 185
 186 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */