File indexing completed on 2024-09-15 06:34:43

 /*
     This file is part of the KDE libraries
     SPDX-FileCopyrightText: 1999 Reginald Stadlbauer <reggie@kde.org>
     SPDX-FileCopyrightText: 1999 Simon Hausmann <hausmann@kde.org>
     SPDX-FileCopyrightText: 2000 Nicolas Hadacek <haadcek@kde.org>
     SPDX-FileCopyrightText: 2000 Kurt Granroth <granroth@kde.org>
     SPDX-FileCopyrightText: 2000 Michael Koch <koch@kde.org>
     SPDX-FileCopyrightText: 2001 Holger Freyther <freyther@kde.org>
     SPDX-FileCopyrightText: 2002 Ellis Whitehead <ellis@kde.org>
     SPDX-FileCopyrightText: 2005-2006 Hamish Rodda <rodda@kde.org>
 
     SPDX-License-Identifier: LGPL-2.0-only
 */
 
 #ifndef KACTIONCOLLECTION_H
 #define KACTIONCOLLECTION_H
 
 #include <KStandardAction>
 #include <kxmlgui_export.h>
 
 #include <QAction>
 #include <QObject>
 #include <memory>
 
 class KXMLGUIClient;
 class KConfigGroup;
 class QActionGroup;
 class QString;
 
 /**
  * @class KActionCollection kactioncollection.h KActionCollection
  *
  * \short A container for a set of QAction objects.
  *
  * KActionCollection manages a set of QAction objects.  It
  * allows them to be grouped for organized presentation of configuration to the user,
  * saving + loading of configuration, and optionally for automatic plugging into
  * specified widget(s).
  *
  * Additionally, KActionCollection provides several convenience functions for locating
  * named actions, and actions grouped by QActionGroup.
  *
  * \note If you create your own action collection and need to assign shortcuts
  * to the actions within, you have to call associateWidget() or
  * addAssociatedWidget() to have them working.
  */
 class KXMLGUI_EXPORT KActionCollection : public QObject
 {
     friend class KXMLGUIClient;
 
     Q_OBJECT
 
     Q_PROPERTY(QString configGroup READ configGroup WRITE setConfigGroup)
     Q_PROPERTY(bool configIsGlobal READ configIsGlobal WRITE setConfigGlobal)
 
 public:
     /**
      * Constructor.  Allows specification of a component name other than the default
      * application name, where needed (remember to call setComponentDisplayName() too).
      */
     explicit KActionCollection(QObject *parent, const QString &cName = QString());
 
     /**
      * Destructor.
      */
     ~KActionCollection() override;
 
     /**
      * Access the list of all action collections in existence for this app
      */
     static const QList<KActionCollection *> &allCollections();
 
     /**
      * Clears the entire action collection, deleting all actions.
      */
     void clear();
 
     /**
      * Associate all actions in this collection to the given @p widget.
      * Unlike addAssociatedWidget(), this method only adds all current actions
      * in the collection to the given widget. Any action added after this call
      * will not be added to the given widget automatically.
      * So this is just a shortcut for a foreach loop and a widget->addAction call.
      */
     void associateWidget(QWidget *widget) const;
 
     /**
      * Associate all actions in this collection to the given @p widget, including any actions
      * added after this association is made.
      *
      * This does not change the action's shortcut context, so if you need to have the actions only
      * trigger when the widget has focus, you'll need to set the shortcut context on each action
      * to Qt::WidgetShortcut (or better still, Qt::WidgetWithChildrenShortcut with Qt 4.4+)
      */
     void addAssociatedWidget(QWidget *widget);
 
     /**
      * Remove an association between all actions in this collection and the given @p widget, i.e.
      * remove those actions from the widget, and stop associating newly added actions as well.
      */
     void removeAssociatedWidget(QWidget *widget);
 
     /**
      * Return a list of all associated widgets.
      */
     QList<QWidget *> associatedWidgets() const;
 
     /**
      * Clear all associated widgets and remove the actions from those widgets.
      */
     void clearAssociatedWidgets();
 
     /**
      * Returns the KConfig group with which settings will be loaded and saved.
      */
     QString configGroup() const;
 
     /**
      * Returns whether this action collection's configuration should be global to KDE ( @c true ),
      * or specific to the application ( @c false ).
      */
     bool configIsGlobal() const;
 
     /**
      * Sets @p group as the KConfig group with which settings will be loaded and saved.
      */
     void setConfigGroup(const QString &group);
 
     /**
      * Set whether this action collection's configuration should be global to KDE ( @c true ),
      * or specific to the application ( @c false ).
      */
     void setConfigGlobal(bool global);
 
     /**
      * Read all key associations from @p config.
      *
      * If @p config is zero, read all key associations from the
      * application's configuration file KSharedConfig::openConfig(),
      * in the group set by setConfigGroup().
      */
     void readSettings(KConfigGroup *config = nullptr);
 
     /**
      * Import from @p config all configurable global key associations.
      *
      * \since 4.1
      *
      * \param config Config object to read from
      */
     void importGlobalShortcuts(KConfigGroup *config);
 
     /**
      * Export the current configurable global key associations to @p config.
      *
      * \since 4.1
      *
      * \param config Config object to save to
      * \param writeDefaults set to true to write settings which are already at defaults.
      */
     void exportGlobalShortcuts(KConfigGroup *config, bool writeDefaults = false) const;
 
     /**
      * Write the current configurable key associations to @p config. What the
      * function does if @p config is zero depends. If this action collection
      * belongs to a KXMLGUIClient the setting are saved to the kxmlgui
      * definition file. If not the settings are written to the applications
      * config file.
      *
      * \note @p oneAction and @p writeDefaults have no meaning for the kxmlgui
      * configuration file.
      *
      * \param config Config object to save to, or null (see above)
      * \param writeDefaults set to true to write settings which are already at defaults.
      * \param oneAction pass an action here if you just want to save the values for one action, eg.
      *                  if you know that action is the only one which has changed.
      */
     void writeSettings(KConfigGroup *config = nullptr, bool writeDefaults = false, QAction *oneAction = nullptr) const;
 
     /**
      * Returns the number of actions in the collection.
      *
      * This is equivalent to actions().count().
      */
     int count() const;
 
     /**
      * Returns whether the action collection is empty or not.
      */
     bool isEmpty() const;
 
     /**
      * Return the QAction* at position @p index in the action collection.
      *
      * This is equivalent to actions().value(index);
      */
     QAction *action(int index) const;
 
     /**
      * Get the action with the given \p name from the action collection.
      *
      * This won't return the action for the menus defined using a "<Menu>" tag
      * in XMLGUI files (e.g. "<Menu name="menuId">" in "applicationNameui.rc").
      * To access menu actions defined like this, use e.g.
      * \code
      * qobject_cast<QMenu *>(guiFactory()->container("menuId", this));
      * \endcode
      * after having called setupGUI() or createGUI().
      *
      * @param name Name of the QAction
      * @return A pointer to the QAction in the collection which matches the parameters or
      * null if nothing matches.
      */
     Q_INVOKABLE QAction *action(const QString &name) const;
 
     /**
      * Returns the list of QActions which belong to this action collection.
      *
      * The list is guaranteed to be in the same order the action were put into
      * the collection.
      */
     QList<QAction *> actions() const;
 
     /**
      * Returns the list of QActions without an QAction::actionGroup() which belong to this action collection.
      */
     const QList<QAction *> actionsWithoutGroup() const;
 
     /**
      * Returns the list of all QActionGroups associated with actions in this action collection.
      */
     const QList<QActionGroup *> actionGroups() const;
 
     /**
      * Set the @p componentName associated with this action collection.
      *
      * \warning Don't call this method on a KActionCollection that contains
      * actions. This is not supported.
      *
      * \param componentData the name which is to be associated with this action collection,
      * or QString() to indicate the app name. This is used to load/save settings into XML files.
      * KXMLGUIClient::setComponentName takes care of calling this.
      */
     void setComponentName(const QString &componentName);
 
     /** The component name with which this class is associated. */
     QString componentName() const;
 
     /**
      * Set the component display name associated with this action collection.
      * (e.g. for the toolbar editor)
      * KXMLGUIClient::setComponentName takes care of calling this.
      */
     void setComponentDisplayName(const QString &displayName);
 
     /** The display name for the associated component. */
     QString componentDisplayName() const;
 
     /**
      * The parent KXMLGUIClient, or null if not available.
      */
     const KXMLGUIClient *parentGUIClient() const;
 
 Q_SIGNALS:
     /**
      * Indicates that @p action was inserted into this action collection.
      */
     void inserted(QAction *action);
 
     /**
      * Emitted when an action has been inserted into, or removed from, this action collection.
      * @since 5.66
      */
     void changed();
 
     /**
      * Indicates that @p action was hovered.
      */
     void actionHovered(QAction *action);
 
     /**
      * Indicates that @p action was triggered
      */
     void actionTriggered(QAction *action);
 
 protected:
     /// Overridden to perform connections when someone wants to know whether an action was highlighted or triggered
     void connectNotify(const QMetaMethod &signal) override;
 
 protected Q_SLOTS:
     virtual void slotActionTriggered();
 
 private Q_SLOTS:
     KXMLGUI_NO_EXPORT void slotActionHovered();
 
 public:
     /**
      * Add an action under the given name to the collection.
      *
      * Inserting an action that was previously inserted under a different name will replace the
      * old entry, i.e. the action will not be available under the old name anymore but only under
      * the new one.
      *
      * Inserting an action under a name that is already used for another action will replace
      * the other action in the collection (but will not delete it).
      *
      * If KAuthorized::authorizeAction() reports that the action is not
      * authorized, it will be disabled and hidden.
      *
      * The ownership of the action object is not transferred.
      * If the action is destroyed it will be removed automatically from the KActionCollection.
      *
      * @param name The name by which the action be retrieved again from the collection.
      * @param action The action to add.
      * @return the same as the action given as parameter. This is just for convenience
      * (chaining calls) and consistency with the other addAction methods, you can also
      * simply ignore the return value.
      */
     Q_INVOKABLE QAction *addAction(const QString &name, QAction *action);
 
     /**
      * Adds a list of actions to the collection.
      *
      * The objectName of the actions is used as their internal name in the collection.
      *
      * The ownership of the action objects is not transferred.
      * If the action is destroyed it will be removed automatically from the KActionCollection.
      *
      * Uses addAction(const QString&, QAction*).
      *
      * @param actions the list of the actions to add.
      *
      * @see addAction()
      * @since 5.0
      */
     void addActions(const QList<QAction *> &actions);
 
     /**
      * Removes an action from the collection and deletes it.
      * @param action The action to remove.
      */
     void removeAction(QAction *action);
 
     /**
      * Removes an action from the collection.
      *
      * The ownership of the action object is not changed.
      *
      * @param action the action to remove.
      */
     QAction *takeAction(QAction *action);
 
     /**
      * Creates a new standard action, adds it to the collection and connects the
      * action's triggered(bool) signal to the specified receiver/member. The
      * newly created action is also returned.
      *
      * @note Using KStandardAction::OpenRecent will cause a different signal than
      * triggered(bool) to be used, see KStandardAction for more information.
      *
      * The action can be retrieved later from the collection by its standard name as per
      * KStandardAction::stdName.
      *
      * The KActionCollection takes ownership of the action object.
      *
      * @param actionType The standard action type of the action to create.
      * @param receiver The QObject to connect the triggered(bool) signal to.  Leave nullptr if no
      *                 connection is desired.
      * @param member The SLOT to connect the triggered(bool) signal to.  Leave nullptr if no
      *               connection is desired.
      * @return new action of the given type ActionType.
      */
     QAction *addAction(KStandardAction::StandardAction actionType, const QObject *receiver = nullptr, const char *member = nullptr);
 
     /**
      * Creates a new standard action, adds to the collection under the given name
      * and connects the action's triggered(bool) signal to the specified
      * receiver/member. The newly created action is also returned.
      *
      * @note Using KStandardAction::OpenRecent will cause a different signal than
      * triggered(bool) to be used, see KStandardAction for more information.
      *
      * The action can be retrieved later from the collection by the specified name.
      *
      * The KActionCollection takes ownership of the action object.
      *
      * @param actionType The standard action type of the action to create.
      * @param name The name by which the action be retrieved again from the collection.
      * @param receiver The QObject to connect the triggered(bool) signal to.  Leave nullptr if no
      *                 connection is desired.
      * @param member The SLOT to connect the triggered(bool) signal to.  Leave nullptr if no
      *               connection is desired.
      * @return new action of the given type ActionType.
      */
     QAction *addAction(KStandardAction::StandardAction actionType, const QString &name, const QObject *receiver = nullptr, const char *member = nullptr);
 
 /**
  * This is the same as addAction(KStandardAction::StandardAction actionType, const QString &name, const QObject *receiver, const char *member) using
  * new style connect syntax.
  *
  * @param actionType The standard action type of the action to create.
  * @param name The name by which the action be retrieved again from the collection.
  * @param receiver The QObject to connect the triggered(bool) signal to.
  * @param slot The slot or lambda to connect the triggered(bool) signal to.
  * @return new action of the given type ActionType.
  *
  * @see addAction(KStandardAction::StandardAction, const QString &, const QObject *, const char *)
  * @since 5.80
  */
 #ifdef K_DOXYGEN
     inline QAction *addAction(KStandardAction::StandardAction actionType, const QString &name, const Receiver *receiver, Func slot)
 #else
     template<class Receiver, class Func>
     inline typename std::enable_if<!std::is_convertible<Func, const char *>::value, QAction>::type *
     addAction(KStandardAction::StandardAction actionType, const QString &name, const Receiver *receiver, Func slot)
 #endif
     {
         QAction *action = KStandardAction::create(actionType, receiver, slot, nullptr);
         action->setParent(this);
         action->setObjectName(name);
         return addAction(name, action);
     }
 
     /**
      * Creates a new action under the given name to the collection and connects
      * the action's triggered(bool) signal to the specified receiver/member. The
      * newly created action is returned.
      *
      * NOTE: KDE prior to 4.2 used the triggered() signal instead of the triggered(bool)
      * signal.
      *
      * Inserting an action that was previously inserted under a different name will replace the
      * old entry, i.e. the action will not be available under the old name anymore but only under
      * the new one.
      *
      * Inserting an action under a name that is already used for another action will replace
      * the other action in the collection.
      *
      * The KActionCollection takes ownership of the action object.
      *
      * @param name The name by which the action be retrieved again from the collection.
      * @param receiver The QObject to connect the triggered(bool) signal to.  Leave nullptr if no
      *                 connection is desired.
      * @param member The SLOT to connect the triggered(bool) signal to.  Leave nullptr if no
      *               connection is desired.
      * @return new action of the given type ActionType.
      */
     QAction *addAction(const QString &name, const QObject *receiver = nullptr, const char *member = nullptr);
 
     /**
      * Creates a new action under the given name, adds it to the collection and connects the action's triggered(bool)
      * signal to the specified receiver/member. The receiver slot may accept either a bool or no
      * parameters at all (i.e. slotTriggered(bool) or slotTriggered() ).
      * The type of the action is specified by the template parameter ActionType.
      *
      * NOTE: KDE prior to 4.2 connected the triggered() signal instead of the triggered(bool)
      * signal.
      *
      * The KActionCollection takes ownership of the action object.
      *
      * @param name The internal name of the action (e.g. "file-open").
      * @param receiver The QObject to connect the triggered(bool) signal to.  Leave nullptr if no
      *                 connection is desired.
      * @param member The SLOT to connect the triggered(bool) signal to.  Leave nullptr if no
      *               connection is desired.
      * @return new action of the given type ActionType.
      *
      * @see addAction()
      */
     template<class ActionType>
     ActionType *add(const QString &name, const QObject *receiver = nullptr, const char *member = nullptr)
     {
         ActionType *a = new ActionType(this);
         if (receiver && member) {
             connect(a, SIGNAL(triggered(bool)), receiver, member);
         }
         addAction(name, a);
         return a;
     }
 
 /**
  * This is the same as add(const QString &name, const QObject *receiver, const char *member) using
  * new style connect syntax.
  *
  * @param name The internal name of the action (e.g. "file-open").
  * @param receiver The QObject to connect the triggered(bool) signal to.
  * @param slot The slot or lambda to connect the triggered(bool) signal to.
  * @return new action of the given type ActionType.
  *
  * @see add(const QString &, const QObject *, const char *)
  * @since 5.28
  */
 #ifdef K_DOXYGEN
     template<class ActionType>
     inline ActionType *add(const QString &name, const Receiver *receiver, Func slot)
 #else
     template<class ActionType, class Receiver, class Func>
     inline typename std::enable_if<!std::is_convertible<Func, const char *>::value, ActionType>::type *
     add(const QString &name, const Receiver *receiver, Func slot)
 #endif
     {
         ActionType *a = new ActionType(this);
         connect(a, &QAction::triggered, receiver, slot);
         addAction(name, a);
         return a;
     }
 
 /**
  * This is the same as addAction(const QString &name, const QObject *receiver, const char *member) using
  * new style connect syntax.
  *
  * @param name The internal name of the action (e.g. "file-open").
  * @param receiver The QObject to connect the triggered(bool) signal to.
  * @param slot The slot or lambda to connect the triggered(bool) signal to.
  * @return new action of the given type ActionType.
  *
  * @see addAction(const QString &, const QObject *, const char *)
  * @since 5.28
  */
 #ifdef K_DOXYGEN
     inline QAction *addAction(const QString &name, const Receiver *receiver, Func slot)
 #else
     template<class Receiver, class Func>
     inline typename std::enable_if<!std::is_convertible<Func, const char *>::value, QAction>::type *
     addAction(const QString &name, const Receiver *receiver, Func slot)
 #endif
     {
         return add<QAction>(name, receiver, slot);
     }
 
     /**
      * Get the default primary shortcut for the given action.
      *
      * @param action the action for which the default primary shortcut should be returned.
      * @return the default primary shortcut of the given action
      * @since 5.0
      */
     static QKeySequence defaultShortcut(QAction *action);
 
     /**
      * Get the default shortcuts for the given action.
      *
      * @param action the action for which the default shortcuts should be returned.
      * @return the default shortcuts of the given action
      * @since 5.0
      */
     static QList<QKeySequence> defaultShortcuts(QAction *action);
 
     /**
      * Set the default shortcut for the given action.
      * Since 5.2, this also calls action->setShortcut(shortcut), i.e. the default shortcut is
      * made active initially.
      *
      * @param action the action for which the default shortcut should be set.
      * @param shortcut the shortcut to use for the given action in its specified shortcutContext()
      * @since 5.0
      */
     static void setDefaultShortcut(QAction *action, const QKeySequence &shortcut);
 
     /**
      * Set the default shortcuts for the given action.
      * Since 5.2, this also calls action->setShortcuts(shortcuts), i.e. the default shortcut is
      * made active initially.
      *
      * @param action the action for which the default shortcut should be set.
      * @param shortcuts the shortcuts to use for the given action in its specified shortcutContext()
      * @since 5.0
      */
     Q_INVOKABLE static void setDefaultShortcuts(QAction *action, const QList<QKeySequence> &shortcuts);
 
     /**
      * Returns true if the given action's shortcuts may be configured by the user.
      *
      * @param action the action for the hint should be verified.
      * @since 5.0
      */
     static bool isShortcutsConfigurable(QAction *action);
 
     /**
      * Indicate whether the user may configure the action's shortcuts.
      *
      * @param action the action for the hint should be verified.
      * @param configurable set to true if the shortcuts of the given action may be configured by the user, otherwise false.
      * @since 5.0
      */
     static void setShortcutsConfigurable(QAction *action, bool configurable);
 
 private:
     KXMLGUI_NO_EXPORT explicit KActionCollection(const KXMLGUIClient *parent); // used by KXMLGUIClient
 
     friend class KActionCollectionPrivate;
     std::unique_ptr<class KActionCollectionPrivate> const d;
 };
 
 #endif