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 /*
     SPDX-FileCopyrightText: 2001-2010 Christoph Cullmann <cullmann@kde.org>
     SPDX-FileCopyrightText: 2009 Erlend Hamberg <ehamberg@gmail.com>
 
     SPDX-License-Identifier: LGPL-2.0-or-later
 */
 
 #ifndef KATE_GLOBAL_H
 #define KATE_GLOBAL_H
 
 #include <ktexteditor_export.h>
 
 #include <ktexteditor/editor.h>
 #include <ktexteditor/view.h>
 
 #include <KAboutData>
 #include <KSharedConfig>
 
 #include <KTextEditor/Application>
 #include <KTextEditor/MainWindow>
 
 #include <QList>
 #include <QPointer>
 
 #include <array>
 #include <memory>
 
 class QStringListModel;
 
 class KateCmd;
 class KateModeManager;
 class KateGlobalConfig;
 class KateDocumentConfig;
 class KateViewConfig;
 class KateRendererConfig;
 namespace KTextEditor
 {
 class DocumentPrivate;
 }
 namespace KTextEditor
 {
 class ViewPrivate;
 class Command;
 }
 class KateScriptManager;
 class KDirWatch;
 class KateHlManager;
 class KateSpellCheckManager;
 class KateWordCompletionModel;
 class KateAbstractInputModeFactory;
 class KateKeywordCompletionModel;
 class KateVariableExpansionManager;
 
 namespace KTextEditor
 {
 /**
  * KTextEditor::EditorPrivate
  * One instance of this class is hold alive during
  * a kate part session, as long as any factory, document
  * or view stay around, here is the place to put things
  * which are needed and shared by all this objects ;)
  */
 class KTEXTEDITOR_EXPORT EditorPrivate : public KTextEditor::Editor
 {
     Q_OBJECT
 
     friend class KTextEditor::Editor;
 
     // unit testing support
 public:
     /**
      * Calling this function internally sets a flag such that unitTestMode()
      * returns \p true.
      */
     static void enableUnitTestMode();
 
     /**
      * Returns \p true, if the unit test mode was enabled through a call of
      * enableUnitTestMode(), otherwise \p false.
      */
     static bool unitTestMode();
 
     // for setDefaultEncoding
     friend class KateDocumentConfig;
 
 private:
     /**
      * Default constructor, private, as singleton
      * @param staticInstance pointer to fill with content of this
      */
     KTEXTEDITOR_NO_EXPORT
     explicit EditorPrivate(QPointer<KTextEditor::EditorPrivate> &staticInstance);
 
 public:
     /**
      * Destructor
      */
     ~EditorPrivate() override;
 
     /**
      * Create a new document object
      * @param parent parent object
      * @return created KTextEditor::Document
      */
     KTextEditor::Document *createDocument(QObject *parent) override;
 
     /**
      * Returns a list of all documents of this editor.
      * @return list of all existing documents
      */
     QList<KTextEditor::Document *> documents() override
     {
         return m_documents.keys();
     }
 
     /**
      * Set the global application object.
      * This will allow the editor component to access
      * the hosting application.
      * @param application application object
      */
     void setApplication(KTextEditor::Application *application) override
     {
         // switch back to dummy application?
         m_application = application ? application : &m_dummyApplication;
     }
 
     /**
      * Current hosting application, if any set.
      * @return current application object or nullptr
      */
     KTextEditor::Application *application() const override
     {
         return m_application;
     }
 
     /**
      * General Information about this editor
      */
 public:
     /**
      * return the about data
      * @return about data of this editor part
      */
     const KAboutData &aboutData() const override
     {
         return m_aboutData;
     }
 
     /**
      * Configuration management
      */
 public:
     /**
      * Shows a config dialog for the part, changes will be applied
      * to the editor, but not saved anywhere automagically, call
      * writeConfig to save them
      */
     void configDialog(QWidget *parent) override;
 
     /**
      * Number of available config pages
      * If the editor returns a number < 1, it doesn't support this
      * and the embedding app should use the configDialog () instead
      * @return number of config pages
      */
     int configPages() const override;
 
     /**
      * returns config page with the given number,
      * config pages from 0 to configPages()-1 are available
      * if configPages() > 0
      */
     KTextEditor::ConfigPage *configPage(int number, QWidget *parent) override;
 
     /**
      * Kate Part Internal stuff ;)
      */
 public:
     /**
      * singleton accessor
      * @return instance of the factory
      */
     static KTextEditor::EditorPrivate *self();
 
     /**
      * register document at the factory
      * this allows us to loop over all docs for example on config changes
      * @param doc document to register
      */
     void registerDocument(KTextEditor::DocumentPrivate *doc);
 
     /**
      * unregister document at the factory
      * @param doc document to register
      */
     void deregisterDocument(KTextEditor::DocumentPrivate *doc);
 
     /**
      * register view at the factory
      * this allows us to loop over all views for example on config changes
      * @param view view to register
      */
     void registerView(KTextEditor::ViewPrivate *view);
 
     /**
      * unregister view at the factory
      * @param view view to unregister
      */
     void deregisterView(KTextEditor::ViewPrivate *view);
 
     /**
      * return a list of all registered views
      * @return all known views
      */
     QList<KTextEditor::ViewPrivate *> views()
     {
         return m_views.values();
     }
 
     /**
      * global dirwatch
      * @return dirwatch instance
      */
     KDirWatch *dirWatch()
     {
         return m_dirWatch;
     }
 
     /**
      * The global configuration of katepart, e.g. katepartrc
      * @return global shared access to katepartrc config
      */
     static KSharedConfigPtr config();
 
     /**
      * global mode manager
      * used to manage the modes centrally
      * @return mode manager
      */
     KateModeManager *modeManager()
     {
         return m_modeManager;
     }
 
     /**
      * fallback document config
      * @return default config for all documents
      */
     KateDocumentConfig *documentConfig()
     {
         return m_documentConfig;
     }
 
     /**
      * fallback view config
      * @return default config for all views
      */
     KateViewConfig *viewConfig()
     {
         return m_viewConfig;
     }
 
     /**
      * fallback renderer config
      * @return default config for all renderers
      */
     KateRendererConfig *rendererConfig()
     {
         return m_rendererConfig;
     }
 
     /**
      * Global script collection
      */
     KateScriptManager *scriptManager()
     {
         return m_scriptManager;
     }
 
     /**
      * hl manager
      * @return hl manager
      */
     KateHlManager *hlManager()
     {
         return m_hlManager;
     }
 
     /**
      * command manager
      * @return command manager
      */
     KateCmd *cmdManager()
     {
         return m_cmdManager;
     }
 
     /**
      * spell check manager
      * @return spell check manager
      */
     KateSpellCheckManager *spellCheckManager()
     {
         return m_spellCheckManager;
     }
 
     /**
      * global instance of the simple word completion mode
      * @return global instance of the simple word completion mode
      */
     KateWordCompletionModel *wordCompletionModel()
     {
         return m_wordCompletionModel;
     }
 
     /**
      * Global instance of the language-aware keyword completion model
      * @return global instance of the keyword completion model
      */
     KateKeywordCompletionModel *keywordCompletionModel()
     {
         return m_keywordCompletionModel;
     }
 
     /**
      * query for command
      * @param cmd name of command to query for
      * @return found command or 0
      */
     KTextEditor::Command *queryCommand(const QString &cmd) const override;
 
     /**
      * Get a list of all registered commands.
      * \return list of all commands
      */
     QList<KTextEditor::Command *> commands() const override;
 
     /**
      * Get a list of available commandline strings.
      * \return commandline strings
      */
     QStringList commandList() const override;
 
     /**
      * Copy text to clipboard an remember it in the history
      * @param text text to copy to clipboard, does nothing if empty!
      * @param fileName fileName of the text to copy, used for highlighting
      */
     void copyToClipboard(const QString &text, const QString &fileName);
 
     /**
      * A clipboard entry stores the copied text and the filename of
      * the copied text.
      */
     struct ClipboardEntry {
         /**
          * The copied text
          */
         QString text;
         /**
          * The file name of the file containing the copied text,
          * used for syntax highlighting
          */
         QString fileName;
     };
 
     friend inline bool operator==(const ClipboardEntry &lhs, const ClipboardEntry &rhs)
     {
         return lhs.text == rhs.text && lhs.fileName == rhs.fileName;
     }
 
     /**
      * Clipboard history, filled with text we ever copied
      * to clipboard via copyToClipboard.
      */
     const QVector<ClipboardEntry> &clipboardHistory() const
     {
         return m_clipboardHistory;
     }
 
     /**
      * return a list of all registered docs
      * @return all known documents
      */
     QList<KTextEditor::DocumentPrivate *> kateDocuments()
     {
         return m_documents.values();
     }
 
     /**
      * Dummy main window to be null safe.
      * @return dummy main window
      */
     KTextEditor::MainWindow *dummyMainWindow()
     {
         return &m_dummyMainWindow;
     }
 
     /**
      * @return list of available input mode factories
      */
     const std::array<std::unique_ptr<KateAbstractInputModeFactory>, KTextEditor::View::ViInputMode + 1> &inputModeFactories()
     {
         return m_inputModeFactories;
     }
 
     /**
      * Search pattern history shared among simple/power search instances.
      */
     QStringListModel *searchHistoryModel();
 
     /**
      * Replace pattern history shared among simple/power search instances.
      */
     QStringListModel *replaceHistoryModel();
 
     /**
      * Call this function to store the history models to the application config.
      */
     void saveSearchReplaceHistoryModels();
 
     /**
      * Returns the variable expansion manager.
      */
     KateVariableExpansionManager *variableExpansionManager();
 
     /**
      * Trigger delayed emission of config changed.
      */
     void triggerConfigChanged();
 
     void copyToMulticursorClipboard(const QStringList &texts);
 
     QStringList multicursorClipboard() const;
 
 private Q_SLOTS:
     /**
      * Emit configChanged if needed.
      * Used to bundle emissions.
      */
     void emitConfigChanged();
 
 Q_SIGNALS:
     /**
      * Emitted if the history of clipboard changes via copyToClipboard
      */
     void clipboardHistoryChanged();
 
 protected:
     bool eventFilter(QObject *, QEvent *) override;
 
 private Q_SLOTS:
     void updateColorPalette();
 
 private:
     /**
      * about data (authors and more)
      */
     KAboutData m_aboutData;
 
     /**
      * registered docs, map from general to specialized pointer
      */
     QHash<KTextEditor::Document *, KTextEditor::DocumentPrivate *> m_documents;
 
     /**
      * registered views
      */
     QSet<KTextEditor::ViewPrivate *> m_views;
 
     /**
      * global dirwatch object
      */
     KDirWatch *m_dirWatch;
 
     /**
      * mode manager
      */
     KateModeManager *m_modeManager;
 
     /**
      * global config
      */
     KateGlobalConfig *m_globalConfig;
 
     /**
      * fallback document config
      */
     KateDocumentConfig *m_documentConfig;
 
     /**
      * fallback view config
      */
     KateViewConfig *m_viewConfig;
 
     /**
      * fallback renderer config
      */
     KateRendererConfig *m_rendererConfig;
 
     /**
      * internal commands
      */
     QList<KTextEditor::Command *> m_cmds;
 
     /**
      * script manager
      */
     KateScriptManager *m_scriptManager;
 
     /**
      * hl manager
      */
     KateHlManager *m_hlManager;
 
     /**
      * command manager
      */
     KateCmd *m_cmdManager;
 
     /**
      * variable expansion manager
      */
     KateVariableExpansionManager *m_variableExpansionManager;
 
     /**
      * spell check manager
      */
     KateSpellCheckManager *m_spellCheckManager;
 
     /**
      * global instance of the simple word completion mode
      */
     KateWordCompletionModel *m_wordCompletionModel;
 
     /**
      * global instance of the language-specific keyword completion model
      */
     KateKeywordCompletionModel *m_keywordCompletionModel;
 
     /**
      * clipboard history
      */
     QVector<ClipboardEntry> m_clipboardHistory;
 
     /**
      * Dummy application object to be null safe
      */
     KTextEditor::Application m_dummyApplication;
 
     /**
      * access to application
      */
     QPointer<KTextEditor::Application> m_application;
 
     /**
      * Dummy main window to be null safe
      */
     KTextEditor::MainWindow m_dummyMainWindow;
 
     /**
      * input modes factories
      * for all input modes in the KTextEditor::View::InputMode we have here an entry
      */
     std::array<std::unique_ptr<KateAbstractInputModeFactory>, KTextEditor::View::ViInputMode + 1> m_inputModeFactories;
 
     /**
      * simple list that stores text copied
      * from all cursors selection
      * It's main purpose is providing multi-paste
      * support.
      */
     QStringList m_multicursorClipboard;
 
     /**
      * Shared history models for search & replace.
      */
     QStringListModel *m_searchHistoryModel;
     QStringListModel *m_replaceHistoryModel;
 
     /**
      * We collapse configChanged signals to avoid that e.g.
      * Document/View/Renderer/... updates cause X emitted signals in a row.
      * This bool tells if we still shall emit a signal in the delayed connected
      * slot.
      */
     bool m_configWasChanged = false;
 };
 
 }
 
 #endif