Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdepim@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 269 insertions, 0 deletions

diff --git a/knode/articlewidget.h b/knode/articlewidget.h
new file mode 100644
index 000000000..d22926196
--- /dev/null
+++ b/knode/articlewidget.h
@@ -0,0 +1,269 @@
+/*
+    KNode, the KDE newsreader
+    Copyright (c) 2005 Volker Krause <[email protected]>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software Foundation,
+    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, US
+*/
+
+#ifndef KNODE_ARTICLEWIDGET_H
+#define KNODE_ARTICLEWIDGET_H
+
+#include <qmap.h>
+#include <qvaluelist.h>
+#include <qwidget.h>
+
+#include <kurl.h>
+
+#include <kmime_content.h>
+
+#include "knjobdata.h"
+
+class QStringList;
+class QTimer;
+
+class KAction;
+class KActionCollection;
+class KActionMenu;
+class KHTMLPart;
+class KURL;
+class KSelectAction;
+class KToggleAction;
+class KXMLGUIClient;
+
+namespace Kpgp {
+  class Block;
+}
+
+class KNArticle;
+class KNArticleCollection;
+
+namespace KNode {
+
+class CSSHelper;
+
+/**
+  Widget to display a news article
+*/
+class ArticleWidget : public QWidget, public KNJobConsumer {
+
+  Q_OBJECT
+
+  public:
+    /// Construct a new article widget
+    ArticleWidget( QWidget *parent,
+                   KXMLGUIClient *guiClient,
+                   KActionCollection *actionCollection,
+                   const char *name = 0 );
+    ~ArticleWidget();
+
+    /// read config settings
+    void readConfig();
+    /// write config settings (call only for the main viewer)
+    void writeConfig();
+
+    /// display the given article
+    void setArticle( KNArticle *article );
+    /// returns the currently shown article
+    KNArticle *article() const { return mArticle; }
+
+    KAction* setCharsetKeyboardAction() const { return mCharsetSelectKeyb; }
+
+    /// notify all instances about a config change
+    static void configChanged();
+    /// check wether the given article is displayed in any instance
+    static bool articleVisible( KNArticle *article );
+    /// notify all instances that the given article has been removed
+    static void articleRemoved( KNArticle *article );
+    /// notify all instances that the given article has changed
+    static void articleChanged( KNArticle *article );
+    /// notify all instances about an error during loading the given article
+    static void articleLoadError( KNArticle *article, const QString &error );
+    /// notify all instances that the given collection has been removed
+    static void collectionRemoved( KNArticleCollection *coll );
+    /// cleanup all instances
+    static void cleanup();
+
+    /// checks wether the readers is scrolled down to the bottom
+    bool atBottom() const;
+
+  public slots:
+    void scrollUp();
+    void scrollDown();
+    void scrollPrior();
+    void scrollNext();
+
+  signals:
+    void focusChanged( QFocusEvent* );
+    void focusChangeRequest( QWidget* );
+
+  protected:
+    /// process download jobs for view source action
+    void processJob( KNJobData *j );
+
+    virtual void focusInEvent( QFocusEvent *e );
+    virtual void focusOutEvent( QFocusEvent *e );
+    virtual bool eventFilter( QObject *o, QEvent *e );
+
+  private:
+    void initActions();
+
+    /// enable article dependent actions
+    void enableActions();
+    /// disable article dependent actions
+    void disableActions();
+
+    /// clears the article viewer
+    void clear();
+    /// displays the current article or clears the view if no article is set
+    void displayArticle();
+    /// displays the given error message in the viewer
+    void displayErrorMessage( const QString &msg );
+
+    /// display the message header (should be replaced by KMail's HeaderStyle class)
+    void displayHeader();
+    /** displays the given text block, including quote and signature handling
+     *  @param lines A list of lines to display.
+     */
+    void displayBodyBlock( const QStringList &lines );
+    /// displays a signature block header
+    QString displaySigHeader( Kpgp::Block* block );
+    /// displays a signature footer
+    void displaySigFooter( const QString &signClass );
+    /// displays the given attachment
+    void displayAttachment( KMime::Content *att, int partNum );
+
+    /// HTML conversion flags for toHtmlString()
+    enum ConversionFlags {
+      None = 0,
+      ParseURL = 1,
+      FancyFormatting = 2,
+      AllowROT13 = 4
+    };
+    /// convert the given string into an HTML string
+    QString toHtmlString( const QString &line, int flags = ParseURL );
+    /// convert the given image into a data:/ URL
+    static QString imgToDataUrl( const QImage &image, const char* fmt );
+
+    /** calculates the quoting depth of the given line
+     *  @returns -1 if no quoting was found, the quoting level otherwise
+     */
+    static int quotingDepth( const QString &line, const QString &quoteChars );
+    /// checks wether the given attachment can be shown inline
+    bool inlinePossible( KMime::Content *c );
+    /// checks if the given charset is supported
+    bool canDecodeText( const QCString &charset ) const;
+
+    /// regenerated viewer content without changing scrollbar position
+    void updateContents();
+
+    /** stores the given attachment into a temporary file
+     *  @returns the filename the attachment has been stored to
+     */
+    QString writeAttachmentToTempFile( KMime::Content *att, int partNum );
+    /// removes all temporary files
+    void removeTempFiles();
+
+  private slots:
+    /// called if the user clicked on an URL
+    void slotURLClicked( const KURL &url, bool forceOpen = false );
+    /// called if the user RMB clicked on an URL
+    void slotURLPopup( const QString &url, const QPoint &point );
+
+    /// mark as read timeout
+    void slotTimeout();
+
+    void slotSave();
+    void slotPrint();
+    void slotCopySelection();
+    void slotSelectAll();
+    void slotFind();
+    void slotViewSource();
+    void slotReply();
+    void slotRemail();
+    void slotForward();
+    void slotCancel();
+    void slotSupersede();
+    void slotToggleFixedFont();
+    void slotToggleFancyFormating();
+    void slotToggleRot13();
+
+    void slotFancyHeaders();
+    void slotStandardHeaders();
+    void slotAllHeaders();
+
+    void slotIconAttachments();
+    void slotInlineAttachments();
+    void slotHideAttachments();
+
+    void slotSetCharset( const QString &charset );
+    void slotSetCharsetKeyboard();
+
+    void slotOpenURL();
+    void slotCopyURL();
+    void slotAddBookmark();
+    void slotAddToAddressBook();
+    void slotOpenInAddressBook();
+    void slotOpenAttachment();
+    void slotSaveAttachment();
+
+  private:
+    /// the currently shown article
+    KNArticle *mArticle;
+    /// attachments of the current article
+    KMime::Content::List mAttachments;
+    /// mapping of temporary file names to part numbers
+    QMap<QString, int> mAttachementMap;
+
+    KHTMLPart *mViewer;
+    CSSHelper *mCSSHelper;
+
+    QStringList mTempDirs, mTempFiles;
+
+    QString mHeaderStyle;
+    QString mAttachmentStyle;
+    bool mShowHtml;
+    bool mRot13;
+    bool mForceCharset;
+    QCString mOverrideCharset;
+
+    /// mark as read timer
+    QTimer *mTimer;
+
+    /// the last RMB clicked URL
+    KURL mCurrentURL;
+
+    /// list of all instances of this class
+    static QValueList<ArticleWidget*> mInstances;
+
+    KXMLGUIClient *mGuiClient;
+    KActionCollection *mActionCollection;
+
+    KAction *mSaveAction;
+    KAction *mPrintAction;
+    KAction *mCopySelectionAction;
+    KAction *mSelectAllAction;
+    KAction *mFindAction;
+    KAction *mViewSourceAction;
+    KAction *mCharsetSelectKeyb;
+    KAction *mReplyAction;
+    KAction *mRemailAction;
+    KAction *mForwardAction;
+    KAction *mCancelAction;
+    KAction *mSupersedeAction;
+    KActionMenu *mHeaderStyleMenu;
+    KActionMenu *mAttachmentStyleMenu;
+    KToggleAction *mFixedFontToggle;
+    KToggleAction *mFancyToggle;
+    KToggleAction *mRot13Toggle;
+    KSelectAction *mCharsetSelect;
+};
+
+}
+
+#endif