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