messageviewer/mailsourceviewer.h

   1 /*  -*- mode: C++; c-file-style: "gnu" -*-
   2  *
   3  *  This file is part of KMail, the KDE mail client.
   4  *
   5  *  Copyright (c) 2002-2003 Carsten Pfeiffer <pfeiffer@kde.org>
   6  *  Copyright (c) 2003      Zack Rusin <zack@kde.org>
   7  *
   8  *  KMail is free software; you can redistribute it and/or modify it
   9  *  under the terms of the GNU General Public License, version 2, as
  10  *  published by the Free Software Foundation.
  11  *
  12  *  KMail is distributed in the hope that it will be useful, but
  13  *  WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  *  General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program; if not, write to the Free Software
  19  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  20  *
  21  *  In addition, as a special exception, the copyright holders give
  22  *  permission to link the code of this program with any edition of
  23  *  the Qt library by Trolltech AS, Norway (or with modified versions
  24  *  of Qt that use the same license as Qt), and distribute linked
  25  *  combinations including the two.  You must obey the GNU General
  26  *  Public License in all respects for all of the code used other than
  27  *  Qt.  If you modify this file, you may extend this exception to
  28  *  your version of the file, but you are not obligated to do so.  If
  29  *  you do not wish to do so, delete this exception statement from
  30  *  your version.
  31  */
  32 #ifndef MAILSOURCEVIEWER_H
  33 #define MAILSOURCEVIEWER_H
  34
  35 #include <QSyntaxHighlighter>
  36 #include <KTabWidget>
  37 #include <QPlainTextEdit>
  38 #include <KDialog>
  39 class QString;
  40 class QWidget;
  41 class QShowEvent;
  42
  43 namespace MessageViewer {
  44 class FindBarSourceView;
  45
  46 /**
  47  * A tiny little class to use for displaying raw messages, textual
  48  * attachments etc.
  49  *
  50  * Auto-deletes itself when closed.
  51  *
  52  * @author Carsten Pfeiffer <pfeiffer@kde.org>
  53  */
  54 class MailSourceViewTextBrowser;
  55 class MailSourceHighlighter : public QSyntaxHighlighter
  56 {
  57 public:
  58   MailSourceHighlighter( QTextDocument * textdocument )
  59     : QSyntaxHighlighter( textdocument )
  60   {}
  61 protected:
  62   virtual void highlightBlock ( const QString & text );
  63 };
  64
  65 class HTMLSourceHighlighter : public QSyntaxHighlighter
  66 {
  67 public:
  68   HTMLSourceHighlighter( QTextDocument * textdocument )
  69     : QSyntaxHighlighter( textdocument )
  70   {}
  71 protected:
  72   virtual void highlightBlock ( const QString & text );
  73 };
  74
  75 class MailSourceViewTextBrowserWidget : public QWidget
  76 {
  77   Q_OBJECT
  78 public:
  79   explicit MailSourceViewTextBrowserWidget( QWidget *parent = 0 );
  80
  81   void setText( const QString& text );
  82   void setPlainText( const QString& text );
  83   MessageViewer::MailSourceViewTextBrowser *textBrowser() const;
  84 private slots:
  85   void slotFind();
  86 private:
  87   MailSourceViewTextBrowser *mTextBrowser;
  88   FindBarSourceView *mFindBar;
  89 };
  90
  91 class MailSourceViewTextBrowser: public QPlainTextEdit
  92 {
  93   Q_OBJECT
  94 public:
  95   explicit MailSourceViewTextBrowser( QWidget *parent = 0 );
  96 protected:
  97   virtual void contextMenuEvent( QContextMenuEvent *event );
  98 private slots:
  99   void slotSpeakText();
 100 signals:
 101   void findText();
 102 };
 103
 104 namespace HTMLPrettyFormatter
 105 {
 106   // Best to be really verbose about this one...
 107   const QRegExp htmlTagRegExp( "<"
 108                           "(/)?"    //Captures the / if this is an end tag.
 109                           "(\\w+)"    //Captures TagName
 110                           "(?:"                //Groups tag contents
 111                           "(?:\\s+"            //Groups attributes
 112                           "(?:\\w+)"  //Attribute name
 113                                   "(?:"                //groups =value portion.
 114                                       "\\s*=\\s*"            // =
 115                                       "(?:"        //Groups attribute "value" portion.
 116                                       "\\\"(?:[^\\\"]*)\\\""    // attVal='double quoted'
 117                                           "|'(?:[^']*)'"        // attVal='single quoted'
 118                                           "|(?:[^'"">\\s]+)"    // attVal=urlnospaces
 119                                       ")"
 120                                   ")?"        //end optional att value portion.
 121                              ")+\\s*"        //One or more attribute pairs
 122                               "|\\s*"            //Some white space.
 123                           ")"
 124                        "(/)?>" //Captures the "/" if this is a complete tag.
 125                       );
 126
 127   const QString reformat( const QString &src );
 128 }
 129
 130 class MailSourceViewer : public KDialog
 131 {
 132 Q_OBJECT
 133 public:
 134   MailSourceViewer( QWidget *parent = 0 );
 135   ~MailSourceViewer();
 136
 137   void setRawSource( const QString &source );
 138   void setDisplayedSource( const QString &source );
 139 private:
 140   KTabWidget *mTabWidget;
 141   MailSourceViewTextBrowserWidget *mRawBrowser;
 142   FindBarSourceView *mFindBar;
 143 #ifndef NDEBUG
 144   MailSourceViewTextBrowserWidget *mHtmlBrowser;
 145   HTMLSourceHighlighter *mHtmlSourceHighLighter;
 146 #endif
 147   MailSourceHighlighter *mRawSourceHighLighter;
 148 };
 149
 150 }
 151 #endif // MAILSOURCEVIEWER_H