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| 39 | |
| 40 | #include "qshortcut.h" |
| 41 | #include "private/qwidget_p.h" |
| 42 | |
| 43 | #ifndef QT_NO_SHORTCUT |
| 44 | #include <qevent.h> |
| 45 | #if QT_CONFIG(whatsthis) |
| 46 | #include <qwhatsthis.h> |
| 47 | #endif |
| 48 | #if QT_CONFIG(menu) |
| 49 | #include <qmenu.h> |
| 50 | #endif |
| 51 | #if QT_CONFIG(menubar) |
| 52 | #include <qmenubar.h> |
| 53 | #endif |
| 54 | #include <qapplication.h> |
| 55 | #include <private/qapplication_p.h> |
| 56 | #include <private/qshortcutmap_p.h> |
| 57 | #include <private/qaction_p.h> |
| 58 | #include <private/qwidgetwindow_p.h> |
| 59 | #include <qpa/qplatformmenu.h> |
| 60 | |
| 61 | QT_BEGIN_NAMESPACE |
| 62 | |
| 63 | #define QAPP_CHECK(functionName) \ |
| 64 | if (Q_UNLIKELY(!qApp)) { \ |
| 65 | qWarning("QShortcut: Initialize QApplication before calling '" functionName "'."); \ |
| 66 | return; \ |
| 67 | } |
| 68 | |
| 69 | |
| 70 | static bool correctWidgetContext(Qt::ShortcutContext context, QWidget *w, QWidget *active_window); |
| 71 | #if QT_CONFIG(graphicsview) |
| 72 | static bool correctGraphicsWidgetContext(Qt::ShortcutContext context, QGraphicsWidget *w, QWidget *active_window); |
| 73 | #endif |
| 74 | #ifndef QT_NO_ACTION |
| 75 | static bool correctActionContext(Qt::ShortcutContext context, QAction *a, QWidget *active_window); |
| 76 | #endif |
| 77 | |
| 78 | |
| 79 | /*! \internal |
| 80 | Returns \c true if the widget \a w is a logical sub window of the current |
| 81 | top-level widget. |
| 82 | */ |
| 83 | bool qWidgetShortcutContextMatcher(QObject *object, Qt::ShortcutContext context) |
| 84 | { |
| 85 | Q_ASSERT_X(object, "QShortcutMap" , "Shortcut has no owner. Illegal map state!" ); |
| 86 | |
| 87 | QWidget *active_window = QApplication::activeWindow(); |
| 88 | |
| 89 | // popups do not become the active window, |
| 90 | // so we fake it here to get the correct context |
| 91 | // for the shortcut system. |
| 92 | if (QApplication::activePopupWidget()) |
| 93 | active_window = QApplication::activePopupWidget(); |
| 94 | |
| 95 | if (!active_window) { |
| 96 | QWindow *qwindow = QGuiApplication::focusWindow(); |
| 97 | if (qwindow && qwindow->isActive()) { |
| 98 | while (qwindow) { |
| 99 | if (auto widgetWindow = qobject_cast<QWidgetWindow *>(object: qwindow)) { |
| 100 | active_window = widgetWindow->widget(); |
| 101 | break; |
| 102 | } |
| 103 | qwindow = qwindow->parent(); |
| 104 | } |
| 105 | } |
| 106 | } |
| 107 | |
| 108 | if (!active_window) |
| 109 | return false; |
| 110 | |
| 111 | #ifndef QT_NO_ACTION |
| 112 | if (auto a = qobject_cast<QAction *>(object)) |
| 113 | return correctActionContext(context, a, active_window); |
| 114 | #endif |
| 115 | |
| 116 | #if QT_CONFIG(graphicsview) |
| 117 | if (auto gw = qobject_cast<QGraphicsWidget *>(object)) |
| 118 | return correctGraphicsWidgetContext(context, w: gw, active_window); |
| 119 | #endif |
| 120 | |
| 121 | auto w = qobject_cast<QWidget *>(o: object); |
| 122 | if (!w) { |
| 123 | if (auto s = qobject_cast<QShortcut *>(object)) |
| 124 | w = s->parentWidget(); |
| 125 | } |
| 126 | |
| 127 | if (!w) { |
| 128 | auto qwindow = qobject_cast<QWindow *>(o: object); |
| 129 | while (qwindow) { |
| 130 | if (auto widget_window = qobject_cast<QWidgetWindow *>(object: qwindow)) { |
| 131 | w = widget_window->widget(); |
| 132 | break; |
| 133 | } |
| 134 | qwindow = qwindow->parent(); |
| 135 | } |
| 136 | } |
| 137 | |
| 138 | if (!w) |
| 139 | return false; |
| 140 | |
| 141 | return correctWidgetContext(context, w, active_window); |
| 142 | } |
| 143 | |
| 144 | static bool correctWidgetContext(Qt::ShortcutContext context, QWidget *w, QWidget *active_window) |
| 145 | { |
| 146 | bool visible = w->isVisible(); |
| 147 | #if QT_CONFIG(menubar) |
| 148 | if (auto = qobject_cast<QMenuBar *>(object: w)) { |
| 149 | if (auto *pmb = menuBar->platformMenuBar()) { |
| 150 | if (menuBar->parentWidget()) { |
| 151 | visible = true; |
| 152 | } else { |
| 153 | if (auto *ww = qobject_cast<QWidgetWindow *>(object: pmb->parentWindow())) |
| 154 | w = ww->widget(); // Good enough since we only care about the window |
| 155 | else |
| 156 | return false; // This is not a QWidget window. We won't deliver |
| 157 | } |
| 158 | } |
| 159 | } |
| 160 | #endif |
| 161 | |
| 162 | if (!visible || !w->isEnabled()) |
| 163 | return false; |
| 164 | |
| 165 | if (context == Qt::ApplicationShortcut) |
| 166 | return QApplicationPrivate::tryModalHelper(widget: w, rettop: nullptr); // true, unless w is shadowed by a modal dialog |
| 167 | |
| 168 | if (context == Qt::WidgetShortcut) |
| 169 | return w == QApplication::focusWidget(); |
| 170 | |
| 171 | if (context == Qt::WidgetWithChildrenShortcut) { |
| 172 | const QWidget *tw = QApplication::focusWidget(); |
| 173 | while (tw && tw != w && (tw->windowType() == Qt::Widget || tw->windowType() == Qt::Popup || tw->windowType() == Qt::SubWindow)) |
| 174 | tw = tw->parentWidget(); |
| 175 | return tw == w; |
| 176 | } |
| 177 | |
| 178 | // Below is Qt::WindowShortcut context |
| 179 | QWidget *tlw = w->window(); |
| 180 | #if QT_CONFIG(graphicsview) |
| 181 | if (auto topData = static_cast<QWidgetPrivate *>(QObjectPrivate::get(o: tlw))->extra.get()) { |
| 182 | if (topData->proxyWidget) { |
| 183 | bool res = correctGraphicsWidgetContext(context, w: topData->proxyWidget, active_window); |
| 184 | return res; |
| 185 | } |
| 186 | } |
| 187 | #endif |
| 188 | |
| 189 | if (active_window && active_window != tlw) { |
| 190 | /* if a floating tool window is active, keep shortcuts on the parent working. |
| 191 | * and if a popup window is active (f.ex a completer), keep shortcuts on the |
| 192 | * focus proxy working */ |
| 193 | if (active_window->windowType() == Qt::Tool && active_window->parentWidget()) { |
| 194 | active_window = active_window->parentWidget()->window(); |
| 195 | } else if (active_window->windowType() == Qt::Popup && active_window->focusProxy()) { |
| 196 | active_window = active_window->focusProxy()->window(); |
| 197 | } |
| 198 | } |
| 199 | |
| 200 | if (active_window != tlw) { |
| 201 | #if QT_CONFIG(menubar) |
| 202 | // If the tlw is a QMenuBar then we allow it to proceed as this indicates that |
| 203 | // the QMenuBar is a parentless one and is therefore used for multiple top level |
| 204 | // windows in the application. This is common on macOS platforms for example. |
| 205 | if (!qobject_cast<QMenuBar *>(object: tlw)) |
| 206 | #endif |
| 207 | return false; |
| 208 | } |
| 209 | |
| 210 | /* if we live in a MDI subwindow, ignore the event if we are |
| 211 | not the active document window */ |
| 212 | const QWidget* sw = w; |
| 213 | while (sw && !(sw->windowType() == Qt::SubWindow) && !sw->isWindow()) |
| 214 | sw = sw->parentWidget(); |
| 215 | if (sw && (sw->windowType() == Qt::SubWindow)) { |
| 216 | QWidget *focus_widget = QApplication::focusWidget(); |
| 217 | while (focus_widget && focus_widget != sw) |
| 218 | focus_widget = focus_widget->parentWidget(); |
| 219 | return sw == focus_widget; |
| 220 | } |
| 221 | |
| 222 | #if defined(DEBUG_QSHORTCUTMAP) |
| 223 | qDebug().nospace() << "..true [Pass-through]" ; |
| 224 | #endif |
| 225 | return QApplicationPrivate::tryModalHelper(widget: w, rettop: nullptr); |
| 226 | } |
| 227 | |
| 228 | #if QT_CONFIG(graphicsview) |
| 229 | static bool correctGraphicsWidgetContext(Qt::ShortcutContext context, QGraphicsWidget *w, QWidget *active_window) |
| 230 | { |
| 231 | bool visible = w->isVisible(); |
| 232 | #if defined(Q_OS_DARWIN) && QT_CONFIG(menubar) |
| 233 | if (!QCoreApplication::testAttribute(Qt::AA_DontUseNativeMenuBar) && qobject_cast<QMenuBar *>(w)) |
| 234 | visible = true; |
| 235 | #endif |
| 236 | |
| 237 | if (!visible || !w->isEnabled() || !w->scene()) |
| 238 | return false; |
| 239 | |
| 240 | if (context == Qt::ApplicationShortcut) { |
| 241 | // Applicationwide shortcuts are always reachable unless their owner |
| 242 | // is shadowed by modality. In QGV there's no modality concept, but we |
| 243 | // must still check if all views are shadowed. |
| 244 | const auto &views = w->scene()->views(); |
| 245 | for (auto view : views) { |
| 246 | if (QApplicationPrivate::tryModalHelper(widget: view, rettop: nullptr)) |
| 247 | return true; |
| 248 | } |
| 249 | return false; |
| 250 | } |
| 251 | |
| 252 | if (context == Qt::WidgetShortcut) |
| 253 | return static_cast<QGraphicsItem *>(w) == w->scene()->focusItem(); |
| 254 | |
| 255 | if (context == Qt::WidgetWithChildrenShortcut) { |
| 256 | const QGraphicsItem *ti = w->scene()->focusItem(); |
| 257 | if (ti && ti->isWidget()) { |
| 258 | const auto *tw = static_cast<const QGraphicsWidget *>(ti); |
| 259 | while (tw && tw != w && (tw->windowType() == Qt::Widget || tw->windowType() == Qt::Popup)) |
| 260 | tw = tw->parentWidget(); |
| 261 | return tw == w; |
| 262 | } |
| 263 | return false; |
| 264 | } |
| 265 | |
| 266 | // Below is Qt::WindowShortcut context |
| 267 | |
| 268 | // Find the active view (if any). |
| 269 | const auto &views = w->scene()->views(); |
| 270 | QGraphicsView *activeView = nullptr; |
| 271 | for (auto view : views) { |
| 272 | if (view->window() == active_window) { |
| 273 | activeView = view; |
| 274 | break; |
| 275 | } |
| 276 | } |
| 277 | if (!activeView) |
| 278 | return false; |
| 279 | |
| 280 | // The shortcut is reachable if owned by a windowless widget, or if the |
| 281 | // widget's window is the same as the focus item's window. |
| 282 | QGraphicsWidget *a = w->scene()->activeWindow(); |
| 283 | return !w->window() || a == w->window(); |
| 284 | } |
| 285 | #endif |
| 286 | |
| 287 | #ifndef QT_NO_ACTION |
| 288 | static bool correctActionContext(Qt::ShortcutContext context, QAction *a, QWidget *active_window) |
| 289 | { |
| 290 | const QWidgetList &widgets = static_cast<QActionPrivate *>(QObjectPrivate::get(o: a))->widgets; |
| 291 | #if defined(DEBUG_QSHORTCUTMAP) |
| 292 | if (widgets.isEmpty()) |
| 293 | qDebug() << a << "not connected to any widgets; won't trigger" ; |
| 294 | #endif |
| 295 | for (auto w : widgets) { |
| 296 | #if QT_CONFIG(menu) |
| 297 | if (auto = qobject_cast<QMenu *>(object: w)) { |
| 298 | #ifdef Q_OS_DARWIN |
| 299 | // On Mac, menu item shortcuts are processed before reaching any window. |
| 300 | // That means that if a menu action shortcut has not been already processed |
| 301 | // (and reaches this point), then the menu item itself has been disabled. |
| 302 | // This occurs at the QPA level on Mac, where we disable all the Cocoa menus |
| 303 | // when showing a modal window. (Notice that only the QPA menu is disabled, |
| 304 | // not the QMenu.) Since we can also reach this code by climbing the menu |
| 305 | // hierarchy (see below), or when the shortcut is not a key-equivalent, we |
| 306 | // need to check whether the QPA menu is actually disabled. |
| 307 | // When there is no QPA menu, there will be no QCocoaMenuDelegate checking |
| 308 | // for the actual shortcuts. We can then fallback to our own logic. |
| 309 | QPlatformMenu *pm = menu->platformMenu(); |
| 310 | if (pm && !pm->isEnabled()) |
| 311 | continue; |
| 312 | #endif |
| 313 | QAction *a = menu->menuAction(); |
| 314 | if (correctActionContext(context, a, active_window)) |
| 315 | return true; |
| 316 | } else |
| 317 | #endif |
| 318 | if (correctWidgetContext(context, w, active_window)) |
| 319 | return true; |
| 320 | } |
| 321 | |
| 322 | #if QT_CONFIG(graphicsview) |
| 323 | const auto &graphicsWidgets = static_cast<QActionPrivate *>(QObjectPrivate::get(o: a))->graphicsWidgets; |
| 324 | #if defined(DEBUG_QSHORTCUTMAP) |
| 325 | if (graphicsWidgets.isEmpty()) |
| 326 | qDebug() << a << "not connected to any widgets; won't trigger" ; |
| 327 | #endif |
| 328 | for (auto graphicsWidget : graphicsWidgets) { |
| 329 | if (correctGraphicsWidgetContext(context, w: graphicsWidget, active_window)) |
| 330 | return true; |
| 331 | } |
| 332 | #endif |
| 333 | return false; |
| 334 | } |
| 335 | #endif // QT_NO_ACTION |
| 336 | |
| 337 | |
| 338 | /*! |
| 339 | \class QShortcut |
| 340 | \brief The QShortcut class is used to create keyboard shortcuts. |
| 341 | |
| 342 | \ingroup events |
| 343 | \inmodule QtWidgets |
| 344 | |
| 345 | The QShortcut class provides a way of connecting keyboard |
| 346 | shortcuts to Qt's \l{signals and slots} mechanism, so that |
| 347 | objects can be informed when a shortcut is executed. The shortcut |
| 348 | can be set up to contain all the key presses necessary to |
| 349 | describe a keyboard shortcut, including the states of modifier |
| 350 | keys such as \uicontrol Shift, \uicontrol Ctrl, and \uicontrol Alt. |
| 351 | |
| 352 | \target mnemonic |
| 353 | |
| 354 | On certain widgets, using '&' in front of a character will |
| 355 | automatically create a mnemonic (a shortcut) for that character, |
| 356 | e.g. "E&xit" will create the shortcut \uicontrol Alt+X (use '&&' to |
| 357 | display an actual ampersand). The widget might consume and perform |
| 358 | an action on a given shortcut. On X11 the ampersand will not be |
| 359 | shown and the character will be underlined. On Windows, shortcuts |
| 360 | are normally not displayed until the user presses the \uicontrol Alt |
| 361 | key, but this is a setting the user can change. On Mac, shortcuts |
| 362 | are disabled by default. Call \l qt_set_sequence_auto_mnemonic() to |
| 363 | enable them. However, because mnemonic shortcuts do not fit in |
| 364 | with Aqua's guidelines, Qt will not show the shortcut character |
| 365 | underlined. |
| 366 | |
| 367 | For applications that use menus, it may be more convenient to |
| 368 | use the convenience functions provided in the QMenu class to |
| 369 | assign keyboard shortcuts to menu items as they are created. |
| 370 | Alternatively, shortcuts may be associated with other types of |
| 371 | actions in the QAction class. |
| 372 | |
| 373 | The simplest way to create a shortcut for a particular widget is |
| 374 | to construct the shortcut with a key sequence. For example: |
| 375 | |
| 376 | \snippet code/src_gui_kernel_qshortcut.cpp 0 |
| 377 | |
| 378 | When the user types the \l{QKeySequence}{key sequence} |
| 379 | for a given shortcut, the shortcut's activated() signal is |
| 380 | emitted. (In the case of ambiguity, the activatedAmbiguously() |
| 381 | signal is emitted.) A shortcut is "listened for" by Qt's event |
| 382 | loop when the shortcut's parent widget is receiving events. |
| 383 | |
| 384 | A shortcut's key sequence can be set with setKey() and retrieved |
| 385 | with key(). A shortcut can be enabled or disabled with |
| 386 | setEnabled(), and can have "What's This?" help text set with |
| 387 | setWhatsThis(). |
| 388 | |
| 389 | \sa QShortcutEvent, QKeySequence, QAction |
| 390 | */ |
| 391 | |
| 392 | /*! |
| 393 | \fn QWidget *QShortcut::parentWidget() const |
| 394 | |
| 395 | Returns the shortcut's parent widget. |
| 396 | */ |
| 397 | |
| 398 | /*! |
| 399 | \fn void QShortcut::activated() |
| 400 | |
| 401 | This signal is emitted when the user types the shortcut's key |
| 402 | sequence. |
| 403 | |
| 404 | \sa activatedAmbiguously() |
| 405 | */ |
| 406 | |
| 407 | /*! |
| 408 | \fn void QShortcut::activatedAmbiguously() |
| 409 | |
| 410 | When a key sequence is being typed at the keyboard, it is said to |
| 411 | be ambiguous as long as it matches the start of more than one |
| 412 | shortcut. |
| 413 | |
| 414 | When a shortcut's key sequence is completed, |
| 415 | activatedAmbiguously() is emitted if the key sequence is still |
| 416 | ambiguous (i.e., it is the start of one or more other shortcuts). |
| 417 | The activated() signal is not emitted in this case. |
| 418 | |
| 419 | \sa activated() |
| 420 | */ |
| 421 | |
| 422 | /*! |
| 423 | \fn template<typename Functor> |
| 424 | QShortcut(const QKeySequence &key, QWidget *parent, |
| 425 | Functor functor, |
| 426 | Qt::ShortcutContext shortcutContext = Qt::WindowShortcut); |
| 427 | \since 5.15 |
| 428 | \overload |
| 429 | |
| 430 | This is a QShortcut convenience constructor which connects the shortcut's |
| 431 | \l{QShortcut::activated()}{activated()} signal to the \a functor. |
| 432 | */ |
| 433 | /*! |
| 434 | \fn template<typename Functor> |
| 435 | QShortcut(const QKeySequence &key, QWidget *parent, |
| 436 | const QObject *context, Functor functor, |
| 437 | Qt::ShortcutContext shortcutContext = Qt::WindowShortcut); |
| 438 | \since 5.15 |
| 439 | \overload |
| 440 | |
| 441 | This is a QShortcut convenience constructor which connects the shortcut's |
| 442 | \l{QShortcut::activated()}{activated()} signal to the \a functor. |
| 443 | |
| 444 | The \a functor can be a pointer to a member function of the \a context object. |
| 445 | |
| 446 | If the \a context object is destroyed, the \a functor will not be called. |
| 447 | */ |
| 448 | /*! |
| 449 | \fn template<typename Functor, typename FunctorAmbiguous> |
| 450 | QShortcut(const QKeySequence &key, QWidget *parent, |
| 451 | const QObject *context1, Functor functor, |
| 452 | FunctorAmbiguous functorAmbiguous, |
| 453 | Qt::ShortcutContext shortcutContext = Qt::WindowShortcut); |
| 454 | \since 5.15 |
| 455 | \overload |
| 456 | |
| 457 | This is a QShortcut convenience constructor which connects the shortcut's |
| 458 | \l{QShortcut::activated()}{activated()} signal to the \a functor and |
| 459 | \l{QShortcut::activatedAmbiguously()}{activatedAmbiguously()} |
| 460 | signal to the \a FunctorAmbiguous. |
| 461 | |
| 462 | The \a functor and \a FunctorAmbiguous can be a pointer to a member |
| 463 | function of the \a context object. |
| 464 | |
| 465 | If the \a context object is destroyed, the \a functor and |
| 466 | \a FunctorAmbiguous will not be called. |
| 467 | */ |
| 468 | /*! |
| 469 | \fn template<typename Functor, typename FunctorAmbiguous> |
| 470 | QShortcut(const QKeySequence &key, QWidget *parent, |
| 471 | const QObject *context1, Functor functor, |
| 472 | const QObject *context2, FunctorAmbiguous functorAmbiguous, |
| 473 | Qt::ShortcutContext shortcutContext = Qt::WindowShortcut); |
| 474 | \since 5.15 |
| 475 | \overload |
| 476 | |
| 477 | This is a QShortcut convenience constructor which connects the shortcut's |
| 478 | \l{QShortcut::activated()}{activated()} signal to the \a functor and |
| 479 | \l{QShortcut::activatedAmbiguously()}{activatedAmbiguously()} |
| 480 | signal to the \a FunctorAmbiguous. |
| 481 | |
| 482 | The \a functor can be a pointer to a member function of the |
| 483 | \a context1 object. |
| 484 | The \a FunctorAmbiguous can be a pointer to a member function of the |
| 485 | \a context2 object. |
| 486 | |
| 487 | If the \a context1 object is destroyed, the \a functor will not be called. |
| 488 | If the \a context2 object is destroyed, the \a FunctorAmbiguous |
| 489 | will not be called. |
| 490 | */ |
| 491 | |
| 492 | /* |
| 493 | \internal |
| 494 | Private data accessed through d-pointer. |
| 495 | */ |
| 496 | class QShortcutPrivate : public QObjectPrivate |
| 497 | { |
| 498 | Q_DECLARE_PUBLIC(QShortcut) |
| 499 | public: |
| 500 | QShortcutPrivate() = default; |
| 501 | QKeySequence sc_sequence; |
| 502 | Qt::ShortcutContext sc_context = Qt::WindowShortcut; |
| 503 | bool sc_enabled = true; |
| 504 | bool sc_autorepeat = true; |
| 505 | int sc_id = 0; |
| 506 | QString sc_whatsthis; |
| 507 | void redoGrab(QShortcutMap &map); |
| 508 | }; |
| 509 | |
| 510 | void QShortcutPrivate::redoGrab(QShortcutMap &map) |
| 511 | { |
| 512 | Q_Q(QShortcut); |
| 513 | if (Q_UNLIKELY(!parent)) { |
| 514 | qWarning(msg: "QShortcut: No widget parent defined" ); |
| 515 | return; |
| 516 | } |
| 517 | |
| 518 | if (sc_id) |
| 519 | map.removeShortcut(id: sc_id, owner: q); |
| 520 | if (sc_sequence.isEmpty()) |
| 521 | return; |
| 522 | sc_id = map.addShortcut(owner: q, key: sc_sequence, context: sc_context, matcher: qWidgetShortcutContextMatcher); |
| 523 | if (!sc_enabled) |
| 524 | map.setShortcutEnabled(enable: false, id: sc_id, owner: q); |
| 525 | if (!sc_autorepeat) |
| 526 | map.setShortcutAutoRepeat(on: false, id: sc_id, owner: q); |
| 527 | } |
| 528 | |
| 529 | /*! |
| 530 | Constructs a QShortcut object for the \a parent widget. Since no |
| 531 | shortcut key sequence is specified, the shortcut will not emit any |
| 532 | signals. |
| 533 | |
| 534 | \sa setKey() |
| 535 | */ |
| 536 | QShortcut::QShortcut(QWidget *parent) |
| 537 | : QObject(*new QShortcutPrivate, parent) |
| 538 | { |
| 539 | Q_ASSERT(parent != nullptr); |
| 540 | } |
| 541 | |
| 542 | /*! |
| 543 | Constructs a QShortcut object for the \a parent widget. The shortcut |
| 544 | operates on its parent, listening for \l{QShortcutEvent}s that |
| 545 | match the \a key sequence. Depending on the ambiguity of the |
| 546 | event, the shortcut will call the \a member function, or the \a |
| 547 | ambiguousMember function, if the key press was in the shortcut's |
| 548 | \a shortcutContext. |
| 549 | */ |
| 550 | QShortcut::QShortcut(const QKeySequence &key, QWidget *parent, |
| 551 | const char *member, const char *ambiguousMember, |
| 552 | Qt::ShortcutContext shortcutContext) |
| 553 | : QShortcut(parent) |
| 554 | { |
| 555 | QAPP_CHECK("QShortcut" ); |
| 556 | |
| 557 | Q_D(QShortcut); |
| 558 | d->sc_context = shortcutContext; |
| 559 | d->sc_sequence = key; |
| 560 | d->redoGrab(map&: QGuiApplicationPrivate::instance()->shortcutMap); |
| 561 | if (member) |
| 562 | connect(sender: this, SIGNAL(activated()), receiver: parent, member); |
| 563 | if (ambiguousMember) |
| 564 | connect(sender: this, SIGNAL(activatedAmbiguously()), receiver: parent, member: ambiguousMember); |
| 565 | } |
| 566 | |
| 567 | /*! |
| 568 | Destroys the shortcut. |
| 569 | */ |
| 570 | QShortcut::~QShortcut() |
| 571 | { |
| 572 | Q_D(QShortcut); |
| 573 | if (qApp) |
| 574 | QGuiApplicationPrivate::instance()->shortcutMap.removeShortcut(id: d->sc_id, owner: this); |
| 575 | } |
| 576 | |
| 577 | /*! |
| 578 | \property QShortcut::key |
| 579 | \brief the shortcut's key sequence |
| 580 | |
| 581 | This is a key sequence with an optional combination of Shift, Ctrl, |
| 582 | and Alt. The key sequence may be supplied in a number of ways: |
| 583 | |
| 584 | \snippet code/src_gui_kernel_qshortcut.cpp 1 |
| 585 | |
| 586 | By default, this property contains an empty key sequence. |
| 587 | */ |
| 588 | void QShortcut::setKey(const QKeySequence &key) |
| 589 | { |
| 590 | Q_D(QShortcut); |
| 591 | if (d->sc_sequence == key) |
| 592 | return; |
| 593 | QAPP_CHECK("setKey" ); |
| 594 | d->sc_sequence = key; |
| 595 | d->redoGrab(map&: QGuiApplicationPrivate::instance()->shortcutMap); |
| 596 | } |
| 597 | |
| 598 | QKeySequence QShortcut::key() const |
| 599 | { |
| 600 | Q_D(const QShortcut); |
| 601 | return d->sc_sequence; |
| 602 | } |
| 603 | |
| 604 | /*! |
| 605 | \property QShortcut::enabled |
| 606 | \brief whether the shortcut is enabled |
| 607 | |
| 608 | An enabled shortcut emits the activated() or activatedAmbiguously() |
| 609 | signal when a QShortcutEvent occurs that matches the shortcut's |
| 610 | key() sequence. |
| 611 | |
| 612 | If the application is in \c WhatsThis mode the shortcut will not emit |
| 613 | the signals, but will show the "What's This?" text instead. |
| 614 | |
| 615 | By default, this property is \c true. |
| 616 | |
| 617 | \sa whatsThis |
| 618 | */ |
| 619 | void QShortcut::setEnabled(bool enable) |
| 620 | { |
| 621 | Q_D(QShortcut); |
| 622 | if (d->sc_enabled == enable) |
| 623 | return; |
| 624 | QAPP_CHECK("setEnabled" ); |
| 625 | d->sc_enabled = enable; |
| 626 | QGuiApplicationPrivate::instance()->shortcutMap.setShortcutEnabled(enable, id: d->sc_id, owner: this); |
| 627 | } |
| 628 | |
| 629 | bool QShortcut::isEnabled() const |
| 630 | { |
| 631 | Q_D(const QShortcut); |
| 632 | return d->sc_enabled; |
| 633 | } |
| 634 | |
| 635 | /*! |
| 636 | \property QShortcut::context |
| 637 | \brief the context in which the shortcut is valid |
| 638 | |
| 639 | A shortcut's context decides in which circumstances a shortcut is |
| 640 | allowed to be triggered. The normal context is Qt::WindowShortcut, |
| 641 | which allows the shortcut to trigger if the parent (the widget |
| 642 | containing the shortcut) is a subwidget of the active top-level |
| 643 | window. |
| 644 | |
| 645 | By default, this property is set to Qt::WindowShortcut. |
| 646 | */ |
| 647 | void QShortcut::setContext(Qt::ShortcutContext context) |
| 648 | { |
| 649 | Q_D(QShortcut); |
| 650 | if(d->sc_context == context) |
| 651 | return; |
| 652 | QAPP_CHECK("setContext" ); |
| 653 | d->sc_context = context; |
| 654 | d->redoGrab(map&: QGuiApplicationPrivate::instance()->shortcutMap); |
| 655 | } |
| 656 | |
| 657 | Qt::ShortcutContext QShortcut::context() const |
| 658 | { |
| 659 | Q_D(const QShortcut); |
| 660 | return d->sc_context; |
| 661 | } |
| 662 | |
| 663 | /*! |
| 664 | \property QShortcut::whatsThis |
| 665 | \brief the shortcut's "What's This?" help text |
| 666 | |
| 667 | The text will be shown when the application is in "What's |
| 668 | This?" mode and the user types the shortcut key() sequence. |
| 669 | |
| 670 | To set "What's This?" help on a menu item (with or without a |
| 671 | shortcut key), set the help on the item's action. |
| 672 | |
| 673 | By default, this property contains an empty string. |
| 674 | |
| 675 | \sa QWhatsThis::inWhatsThisMode(), QAction::setWhatsThis() |
| 676 | */ |
| 677 | void QShortcut::setWhatsThis(const QString &text) |
| 678 | { |
| 679 | Q_D(QShortcut); |
| 680 | d->sc_whatsthis = text; |
| 681 | } |
| 682 | |
| 683 | QString QShortcut::whatsThis() const |
| 684 | { |
| 685 | Q_D(const QShortcut); |
| 686 | return d->sc_whatsthis; |
| 687 | } |
| 688 | |
| 689 | /*! |
| 690 | \property QShortcut::autoRepeat |
| 691 | \brief whether the shortcut can auto repeat |
| 692 | \since 4.2 |
| 693 | |
| 694 | If true, the shortcut will auto repeat when the keyboard shortcut |
| 695 | combination is held down, provided that keyboard auto repeat is |
| 696 | enabled on the system. |
| 697 | The default value is true. |
| 698 | */ |
| 699 | void QShortcut::setAutoRepeat(bool on) |
| 700 | { |
| 701 | Q_D(QShortcut); |
| 702 | if (d->sc_autorepeat == on) |
| 703 | return; |
| 704 | QAPP_CHECK("setAutoRepeat" ); |
| 705 | d->sc_autorepeat = on; |
| 706 | QGuiApplicationPrivate::instance()->shortcutMap.setShortcutAutoRepeat(on, id: d->sc_id, owner: this); |
| 707 | } |
| 708 | |
| 709 | bool QShortcut::autoRepeat() const |
| 710 | { |
| 711 | Q_D(const QShortcut); |
| 712 | return d->sc_autorepeat; |
| 713 | } |
| 714 | |
| 715 | /*! |
| 716 | Returns the shortcut's ID. |
| 717 | |
| 718 | \sa QShortcutEvent::shortcutId() |
| 719 | */ |
| 720 | int QShortcut::id() const |
| 721 | { |
| 722 | Q_D(const QShortcut); |
| 723 | return d->sc_id; |
| 724 | } |
| 725 | |
| 726 | /*! |
| 727 | \internal |
| 728 | */ |
| 729 | bool QShortcut::event(QEvent *e) |
| 730 | { |
| 731 | Q_D(QShortcut); |
| 732 | if (d->sc_enabled && e->type() == QEvent::Shortcut) { |
| 733 | auto se = static_cast<QShortcutEvent *>(e); |
| 734 | if (se->shortcutId() == d->sc_id && se->key() == d->sc_sequence){ |
| 735 | #if QT_CONFIG(whatsthis) |
| 736 | if (QWhatsThis::inWhatsThisMode()) { |
| 737 | QWhatsThis::showText(pos: QCursor::pos(), text: d->sc_whatsthis); |
| 738 | } else |
| 739 | #endif |
| 740 | if (se->isAmbiguous()) |
| 741 | emit activatedAmbiguously(); |
| 742 | else |
| 743 | emit activated(); |
| 744 | return true; |
| 745 | } |
| 746 | } |
| 747 | return QObject::event(event: e); |
| 748 | } |
| 749 | #endif // QT_NO_SHORTCUT |
| 750 | |
| 751 | QT_END_NAMESPACE |
| 752 | |
| 753 | #include "moc_qshortcut.cpp" |
| 754 | |