src/disabledactionnotifier.cpp

   1 /*
   2  * SPDX-FileCopyrightText: 2024 Jin Liu <m.liu.jin@gmail.com>
   3  *
   4  * SPDX-License-Identifier: GPL-2.0-or-later
   5  */
   6
   7 #include "disabledactionnotifier.h"
   8
   9 DisabledActionNotifier::DisabledActionNotifier(QObject *parent)
  10     : QObject(parent)
  11 {
  12 }
  13
  14 void DisabledActionNotifier::setDisabledReason(QAction *action, QStringView reason)
  15 {
  16     if (action->isEnabled()) {
  17         return;
  18     }
  19
  20     if (m_shortcuts.contains(action)) {
  21         m_shortcuts.take(action)->deleteLater();
  22     }
  23
  24     QShortcut *shortcut = new QShortcut(action->shortcut(), parent());
  25     m_shortcuts.insert(action, shortcut);
  26
  27     connect(action, &QAction::enabledChanged, this, [this, action](bool enabled) {
  28         if (enabled) {
  29             m_shortcuts.take(action)->deleteLater();
  30         }
  31     });
  32
  33     // Don't capture QStringView, as it may reference a temporary QString
  34     QString reasonString = reason.toString();
  35     connect(shortcut, &QShortcut::activated, this, [this, action, reasonString]() {
  36         Q_EMIT disabledActionTriggered(action, reasonString);
  37     });
  38 }
  39
  40 void DisabledActionNotifier::clearDisabledReason(QAction *action)
  41 {
  42     if (action->isEnabled()) {
  43         return;
  44     }
  45
  46     if (m_shortcuts.contains(action)) {
  47         m_shortcuts.take(action)->deleteLater();
  48     }
  49 }
  50
  51 #include "moc_disabledactionnotifier.cpp"