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Fix copy-to-clipboard shortcut on macOS

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It turns out that the previous implementation, based on installing an event filter in every QAction instance, does not work on macOS, likely due to a Qt bug.

Attempt to work around this by using a different implementation of the same idea, by reacting to ShortcutOverride events in the MainWindow object.

Fixes #10929.
This commit is contained in:
Carlo Teubner 2024-06-23 21:16:03 +01:00 committed by Jonathan White
parent 5351392237
commit 42ce2a49fa
2 changed files with 29 additions and 41 deletions
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59
src/gui/MainWindow.cpp
View File

@ -78,28 +78,6 @@
#include "mainwindowadaptor.h"
#endif
// This filter gets installed on all the QAction objects within the MainWindow.
bool ActionEventFilter::eventFilter(QObject* watched, QEvent* event)
{
auto databaseWidget = getMainWindow()->m_ui->tabWidget->currentDatabaseWidget();
if (databaseWidget && event->type() == QEvent::Shortcut) {
// We check if we got a Shortcut event that uses the same key sequence as the
// OS default copy-to-clipboard shortcut.
static const auto stdCopyShortcuts = QKeySequence::keyBindings(QKeySequence::Copy);
if (stdCopyShortcuts.contains(static_cast<QShortcutEvent*>(event)->key())) {
// If so, we ask the database widget to check if any of its sub-widgets has text
// selected, and to copy it to the clipboard if that is the case. We do this
// because that is what the user likely expects to happen, yet Qt does not
// behave like that on all platforms.
if (databaseWidget->copyFocusedTextSelection()) {
// In that case, we return true to stop further processing of this event.
return true;
}
}
}
return QObject::eventFilter(watched, event);
}
const QString MainWindow::BaseWindowTitle = "KeePassXC";
MainWindow* g_MainWindow = nullptr;
@ -1391,6 +1369,33 @@ void MainWindow::databaseTabChanged(int tabIndex)
updateEntryCountLabel();
}
bool MainWindow::event(QEvent* event)
{
if (event->type() == QEvent::ShortcutOverride) {
const auto keyevent = static_cast<QKeyEvent*>(event);
// Did we get a ShortcutOverride event with the same key sequence as the OS default
// copy-to-clipboard shortcut?
if (keyevent->matches(QKeySequence::Copy)) {
// If so, we ask the database widget to check if any of its sub-widgets has
// text selected, and to copy it to the clipboard if that is the case.
// We do this because that is what the user likely expects to happen, yet Qt does not
// behave like that (at least on some platforms).
auto dbWidget = m_ui->tabWidget->currentDatabaseWidget();
if (dbWidget && dbWidget->copyFocusedTextSelection()) {
// Note: instead of actively copying the selected text to the clipboard
// above, simply accepting the event would have a similar effect (Qt
// would deliver it as a key press to the current widget, which would
// trigger the built-in copy-to-clipboard behaviour). However, that
// would not come with our special (configurable) behaviour of
// clearing the clipboard after a certain time period.
keyevent->accept();
return true;
}
}
}
return QMainWindow::event(event);
}
void MainWindow::showEvent(QShowEvent* event)
{
Q_UNUSED(event)
@ -1476,7 +1481,7 @@ void MainWindow::keyPressEvent(QKeyEvent* event)
}
}
QWidget::keyPressEvent(event);
QMainWindow::keyPressEvent(event);
}
bool MainWindow::focusNextPrevChild(bool next)
@ -2197,14 +2202,6 @@ void MainWindow::initActionCollection()
ac->setDefaultShortcut(m_ui->actionEntryRemoveFromAgent, Qt::META + Qt::SHIFT + Qt::Key_H);
#endif
// Install an event filter on every action. It improves handling of keyboard
// shortcuts that match the system copy-to-clipboard key sequence; by default
// this applies to actionEntryCopyPassword, but this could differ based on
// shortcuts the user has configured, or may configure later.
for (auto action : ac->actions()) {
action->installEventFilter(&m_actionEventFilter);
}
QTimer::singleShot(1, ac, &ActionCollection::restoreShortcuts);
}

11
src/gui/MainWindow.h
View File

@ -39,14 +39,6 @@ class InactivityTimer;
class SearchWidget;
class MainWindowEventFilter;
class ActionEventFilter : public QObject
{
Q_OBJECT
protected:
bool eventFilter(QObject* obj, QEvent* event) override;
};
class MainWindow : public QMainWindow
{
Q_OBJECT
@ -105,6 +97,7 @@ public slots:
void restartApp(const QString& message);
protected:
bool event(QEvent* event) override;
void showEvent(QShowEvent* event) override;
void hideEvent(QHideEvent* event) override;
void closeEvent(QCloseEvent* event) override;
@ -179,7 +172,6 @@ private:
const QScopedPointer<Ui::MainWindow> m_ui;
SignalMultiplexer m_actionMultiplexer;
ActionEventFilter m_actionEventFilter;
QPointer<QAction> m_clearHistoryAction;
QPointer<QAction> m_searchWidgetAction;
QPointer<QMenu> m_entryContextMenu;
@ -211,7 +203,6 @@ private:
QTimer m_trayIconTriggerTimer;
QSystemTrayIcon::ActivationReason m_trayIconTriggerReason;
friend class ActionEventFilter;
friend class MainWindowEventFilter;
};