File indexing completed on 2024-04-21 03:54:13

 /*
     SPDX-FileCopyrightText: 2001, 2002 Ellis Whitehead <ellis@kde.org>
     SPDX-FileCopyrightText: 2007 Andreas Hartmetz <ahartmetz@gmail.com>
     SPDX-FileCopyrightText: 2020 David Redondo <kde@david-redondo.de>
 
     SPDX-License-Identifier: LGPL-2.0-or-later
 */
 
 #ifndef KKEYSEQUENCERECORDER_H
 #define KKEYSEQUENCERECORDER_H
 
 #include <kguiaddons_export.h>
 
 #include <QKeySequence>
 #include <QObject>
 #include <QWindow>
 
 #include <memory>
 
 class KKeySequenceRecorderPrivate;
 
 /**
  * @class KKeySequenceRecorder kkeysequencerecorder.h KKeySequenceRecorder
  *
  * @short Record a QKeySequence by listening to key events in a window.
  *
  * After calling startRecording key events in the set window will be captured until a valid
  * QKeySequence has been recorded and gotKeySequence is emitted. See multiKeyShortcutsAllowed and
  * modifierlessAllowed for what constitutes a valid key sequence.
  *
  * During recording any shortcuts are inhibited and cannot be triggered. Either by using the
  * <a href="https://cgit.freedesktop.org/wayland/wayland-protocols/tree/unstable/keyboard-shortcuts-inhibit/keyboard-shortcuts-inhibit-unstable-v1.xml">
  * keyboard-shortcuts-inhibit protocol </a> on Wayland or grabbing the keyboard.
  *
  * For graphical elements that record key sequences and can optionally perform conflict checking
  * against existing shortcuts see KKeySequenceWidget and KeySequenceItem.
  *
  * Porting from KF5 to KF6:
  *
  * The class KeySequenceRecorder was renamed to KKeySequenceRecorder.
  *
  * @see KKeySequenceWidget, KeySequenceItem
  * @since 6.0
  */
 class KGUIADDONS_EXPORT KKeySequenceRecorder : public QObject
 {
     Q_OBJECT
 
     /**
      * Whether key events are currently recorded
      */
     Q_PROPERTY(bool isRecording READ isRecording NOTIFY recordingChanged)
     /**
      * The recorded key sequence.
      * After construction this is empty.
      *
      * During recording it is continuously updated with the newest user input.
      *
      * After recording it contains the last recorded QKeySequence
      */
     Q_PROPERTY(QKeySequence currentKeySequence READ currentKeySequence WRITE setCurrentKeySequence NOTIFY currentKeySequenceChanged)
     /**
      * The window in which the key events are happening that should be recorded
      */
     Q_PROPERTY(QWindow *window READ window WRITE setWindow NOTIFY windowChanged)
     /**
      * If key presses of "plain" keys without a modifier are considered to be a valid finished
      * key combination.
      * Plain keys  include letter and symbol keys and text editing keys (Return, Space, Tab,
      * Backspace, Delete). Other keys like F1, Cursor keys, Insert, PageDown will always work.
      *
      * By default this is `false`.
      */
     Q_PROPERTY(bool modifierlessAllowed READ modifierlessAllowed WRITE setModifierlessAllowed NOTIFY modifierlessAllowedChanged)
     /** Controls the amount of key combinations that are captured until recording stops and gotKeySequence
      * is emitted.
      * By default  this is `true` and "Emacs-style" key sequences are recorded. Recording does not
      * stop until four valid key combination have been recorded. Afterwards `currentKeySequence().count()`
      * will be 4.
      *
      * Otherwise only one key combination is recorded before gotKeySequence is emitted with a
      * QKeySequence with a `count()` of  1.
      * @see QKeySequence
      */
     Q_PROPERTY(bool multiKeyShortcutsAllowed READ multiKeyShortcutsAllowed WRITE setMultiKeyShortcutsAllowed NOTIFY multiKeyShortcutsAllowedChanged)
 
     /**
      * It makes it acceptable for the key sequence to be just a modifier (e.g. Shift or Control)
      *
      * By default, if only a modifier is pressed and then released, the component will remain waiting for the sequence.
      * When enabled, it will take the modifier key as the key sequence.
      *
      * By default this is `false`.
      */
     Q_PROPERTY(bool modifierOnlyAllowed READ modifierOnlyAllowed WRITE setModifierOnlyAllowed NOTIFY modifierOnlyAllowedChanged)
 public:
     /**
      * Constructor.
      *
      * @par window The window whose key events will be recorded.
      * @see window
      */
     explicit KKeySequenceRecorder(QWindow *window, QObject *parent = nullptr);
     ~KKeySequenceRecorder() override;
 
     /**
      * Start recording.
      * Calling startRecording when window() is `nullptr` has no effect.
      */
     Q_INVOKABLE void startRecording();
 
     bool isRecording() const;
 
     QKeySequence currentKeySequence() const;
     void setCurrentKeySequence(const QKeySequence &sequence);
 
     QWindow *window() const;
     void setWindow(QWindow *window);
 
     bool multiKeyShortcutsAllowed() const;
     void setMultiKeyShortcutsAllowed(bool allowed);
 
     void setModifierlessAllowed(bool allowed);
     bool modifierlessAllowed() const;
 
     void setModifierOnlyAllowed(bool allowed);
     bool modifierOnlyAllowed() const;
 
 public Q_SLOTS:
     /**
      * Stops the recording session
      */
     void cancelRecording();
 
 Q_SIGNALS:
     /**
      * This signal is emitted when a key sequence has been recorded.
      *
      * Compared to currentKeySequenceChanged and currentKeySequence this is signal is not emitted
      * continuously during recording but only after recording has finished.
      */
     void gotKeySequence(const QKeySequence &keySequence);
 
     void recordingChanged();
     void windowChanged();
     void currentKeySequenceChanged();
     void multiKeyShortcutsAllowedChanged();
     void modifierlessAllowedChanged();
     void modifierOnlyAllowedChanged();
 
 private:
     friend class KKeySequenceRecorderPrivate;
     std::unique_ptr<KKeySequenceRecorderPrivate> const d;
 };
 
 #endif