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36 | |
37 | #include "qquickcombobox_p.h" |
38 | #include "qquickcontrol_p_p.h" |
39 | #include "qquickabstractbutton_p.h" |
40 | #include "qquickabstractbutton_p_p.h" |
41 | #include "qquickpopup_p_p.h" |
42 | #include "qquickdeferredexecute_p_p.h" |
43 | |
44 | #include <QtCore/qregularexpression.h> |
45 | #include <QtCore/qabstractitemmodel.h> |
46 | #include <QtCore/qglobal.h> |
47 | #include <QtGui/qinputmethod.h> |
48 | #include <QtGui/qguiapplication.h> |
49 | #include <QtGui/qpa/qplatformtheme.h> |
50 | #include <QtQml/qjsvalue.h> |
51 | #include <QtQml/qqmlcontext.h> |
52 | #include <QtQml/private/qlazilyallocated_p.h> |
53 | #include <private/qqmldelegatemodel_p.h> |
54 | #include <QtQuick/private/qquickaccessibleattached_p.h> |
55 | #include <QtQuick/private/qquickevents_p_p.h> |
56 | #include <QtQuick/private/qquicktextinput_p.h> |
57 | #include <QtQuick/private/qquickitemview_p.h> |
58 | |
59 | QT_BEGIN_NAMESPACE |
60 | |
61 | /*! |
62 | \qmltype ComboBox |
63 | \inherits Control |
64 | //! \instantiates QQuickComboBox |
65 | \inqmlmodule QtQuick.Controls |
66 | \since 5.7 |
67 | \ingroup qtquickcontrols2-input |
68 | \ingroup qtquickcontrols2-focusscopes |
69 | \brief Combined button and popup list for selecting options. |
70 | |
71 | \image qtquickcontrols2-combobox.gif |
72 | |
73 | ComboBox is a combined button and popup list. It provides a means of |
74 | presenting a list of options to the user in a way that takes up the |
75 | minimum amount of screen space. |
76 | |
77 | ComboBox is populated with a data model. The data model is commonly |
78 | a JavaScript array, a \l ListModel or an integer, but other types |
79 | of \l {qml-data-models}{data models} are also supported. |
80 | |
81 | \code |
82 | ComboBox { |
83 | model: ["First", "Second", "Third"] |
84 | } |
85 | \endcode |
86 | |
87 | \section1 Editable ComboBox |
88 | |
89 | ComboBox can be made \l editable. An editable combo box auto-completes |
90 | its text based on what is available in the model. |
91 | |
92 | The following example demonstrates appending content to an editable |
93 | combo box by reacting to the \l accepted signal. |
94 | |
95 | \snippet qtquickcontrols2-combobox-accepted.qml combobox |
96 | |
97 | \section1 ComboBox Model Roles |
98 | |
99 | ComboBox is able to visualize standard \l {qml-data-models}{data models} |
100 | that provide the \c modelData role: |
101 | \list |
102 | \li models that have only one role |
103 | \li models that do not have named roles (JavaScript array, integer) |
104 | \endlist |
105 | |
106 | When using models that have multiple named roles, ComboBox must be configured |
107 | to use a specific \l {textRole}{text role} for its \l {displayText}{display text} |
108 | and \l delegate instances. If you want to use a role of the model item |
109 | that corresponds to the text role, set \l valueRole. The \l currentValue |
110 | property and \l indexOfValue() method can then be used to get information |
111 | about those values. |
112 | |
113 | For example: |
114 | |
115 | \snippet qtquickcontrols2-combobox-valuerole.qml file |
116 | |
117 | \note If ComboBox is assigned a data model that has multiple named roles, but |
118 | \l textRole is not defined, ComboBox is unable to visualize it and throws a |
119 | \c {ReferenceError: modelData is not defined}. |
120 | |
121 | \sa {Customizing ComboBox}, {Input Controls}, {Focus Management in Qt Quick Controls} |
122 | */ |
123 | |
124 | /*! |
125 | \qmlsignal void QtQuick.Controls::ComboBox::activated(int index) |
126 | |
127 | This signal is emitted when the item at \a index is activated by the user. |
128 | |
129 | An item is activated when it is selected while the popup is open, |
130 | causing the popup to close (and \l currentIndex to change), |
131 | or while the popup is closed and the combo box is navigated via |
132 | keyboard, causing the \l currentIndex to change. |
133 | The \l currentIndex property is set to \a index. |
134 | |
135 | \sa currentIndex |
136 | */ |
137 | |
138 | /*! |
139 | \qmlsignal void QtQuick.Controls::ComboBox::highlighted(int index) |
140 | |
141 | This signal is emitted when the item at \a index in the popup list is highlighted by the user. |
142 | |
143 | The highlighted signal is only emitted when the popup is open and an item |
144 | is highlighted, but not necessarily \l activated. |
145 | |
146 | \sa highlightedIndex |
147 | */ |
148 | |
149 | /*! |
150 | \since QtQuick.Controls 2.2 (Qt 5.9) |
151 | \qmlsignal void QtQuick.Controls::ComboBox::accepted() |
152 | |
153 | This signal is emitted when the \uicontrol Return or \uicontrol Enter key is pressed |
154 | on an \l editable combo box. |
155 | |
156 | You can handle this signal in order to add the newly entered |
157 | item to the model, for example: |
158 | |
159 | \snippet qtquickcontrols2-combobox-accepted.qml combobox |
160 | |
161 | Before the signal is emitted, a check is done to see if the string |
162 | exists in the model. If it does, \l currentIndex will be set to its index, |
163 | and \l currentText to the string itself. |
164 | |
165 | After the signal has been emitted, and if the first check failed (that is, |
166 | the item did not exist), another check will be done to see if the item was |
167 | added by the signal handler. If it was, the \l currentIndex and |
168 | \l currentText are updated accordingly. Otherwise, they will be set to |
169 | \c -1 and \c "", respectively. |
170 | |
171 | \note If there is a \l validator set on the combo box, the signal will only be |
172 | emitted if the input is in an acceptable state. |
173 | */ |
174 | |
175 | namespace { |
176 | enum Activation { NoActivate, Activate }; |
177 | enum Highlighting { NoHighlight, Highlight }; |
178 | } |
179 | |
180 | class QQuickComboBoxDelegateModel : public QQmlDelegateModel |
181 | { |
182 | public: |
183 | explicit QQuickComboBoxDelegateModel(QQuickComboBox *combo); |
184 | QVariant variantValue(int index, const QString &role) override; |
185 | |
186 | private: |
187 | QQuickComboBox *combo = nullptr; |
188 | }; |
189 | |
190 | QQuickComboBoxDelegateModel::QQuickComboBoxDelegateModel(QQuickComboBox *combo) |
191 | : QQmlDelegateModel(qmlContext(combo), combo), |
192 | combo(combo) |
193 | { |
194 | } |
195 | |
196 | QVariant QQuickComboBoxDelegateModel::variantValue(int index, const QString &role) |
197 | { |
198 | const QVariant model = combo->model(); |
199 | if (model.userType() == QMetaType::QVariantList) { |
200 | QVariant object = model.toList().value(i: index); |
201 | if (object.userType() == QMetaType::QVariantMap) { |
202 | const QVariantMap data = object.toMap(); |
203 | if (data.count() == 1 && role == QLatin1String("modelData" )) |
204 | return data.first(); |
205 | return data.value(akey: role); |
206 | } else if (object.userType() == QMetaType::QObjectStar) { |
207 | const QObject *data = object.value<QObject *>(); |
208 | if (data && role != QLatin1String("modelData" )) |
209 | return data->property(name: role.toUtf8()); |
210 | } |
211 | } |
212 | return QQmlDelegateModel::variantValue(index, role); |
213 | } |
214 | |
215 | class QQuickComboBoxPrivate : public QQuickControlPrivate |
216 | { |
217 | Q_DECLARE_PUBLIC(QQuickComboBox) |
218 | |
219 | public: |
220 | bool isPopupVisible() const; |
221 | void showPopup(); |
222 | void hidePopup(bool accept); |
223 | void togglePopup(bool accept); |
224 | void popupVisibleChanged(); |
225 | |
226 | void itemClicked(); |
227 | void itemHovered(); |
228 | |
229 | void createdItem(int index, QObject *object); |
230 | void modelUpdated(); |
231 | void countChanged(); |
232 | |
233 | void updateEditText(); |
234 | void updateCurrentText(); |
235 | void updateCurrentValue(); |
236 | void updateCurrentTextAndValue(); |
237 | void updateAcceptableInput(); |
238 | |
239 | bool isValidIndex(int index) const; |
240 | |
241 | void acceptInput(); |
242 | QString tryComplete(const QString &inputText); |
243 | |
244 | void incrementCurrentIndex(); |
245 | void decrementCurrentIndex(); |
246 | void setCurrentIndex(int index, Activation activate); |
247 | void updateHighlightedIndex(); |
248 | void setHighlightedIndex(int index, Highlighting highlight); |
249 | |
250 | void keySearch(const QString &text); |
251 | int match(int start, const QString &text, Qt::MatchFlags flags) const; |
252 | |
253 | void createDelegateModel(); |
254 | |
255 | void handlePress(const QPointF &point) override; |
256 | void handleMove(const QPointF &point) override; |
257 | void handleRelease(const QPointF &point) override; |
258 | void handleUngrab() override; |
259 | |
260 | void cancelIndicator(); |
261 | void executeIndicator(bool complete = false); |
262 | |
263 | void cancelPopup(); |
264 | void executePopup(bool complete = false); |
265 | |
266 | void itemImplicitWidthChanged(QQuickItem *item) override; |
267 | void itemImplicitHeightChanged(QQuickItem *item) override; |
268 | |
269 | void setInputMethodHints(Qt::InputMethodHints hints, bool force = false); |
270 | |
271 | static void hideOldPopup(QQuickPopup *); |
272 | |
273 | bool flat = false; |
274 | bool down = false; |
275 | bool hasDown = false; |
276 | bool pressed = false; |
277 | bool ownModel = false; |
278 | bool keyNavigating = false; |
279 | bool hasDisplayText = false; |
280 | bool hasCurrentIndex = false; |
281 | int highlightedIndex = -1; |
282 | int currentIndex = -1; |
283 | QVariant model; |
284 | QString textRole; |
285 | QString currentText; |
286 | QString displayText; |
287 | QString valueRole; |
288 | QVariant currentValue; |
289 | QQuickItem *pressedItem = nullptr; |
290 | QQmlInstanceModel *delegateModel = nullptr; |
291 | QQmlComponent *delegate = nullptr; |
292 | QQuickDeferredPointer<QQuickItem> indicator; |
293 | QQuickDeferredPointer<QQuickPopup> ; |
294 | bool m_acceptableInput = true; |
295 | |
296 | struct { |
297 | bool = false; |
298 | bool = false; |
299 | bool = false; |
300 | bool = false; |
301 | Qt::InputMethodHints = Qt::ImhNone; |
302 | QString ; |
303 | QValidator * = nullptr; |
304 | }; |
305 | QLazilyAllocated<ExtraData> ; |
306 | }; |
307 | |
308 | bool QQuickComboBoxPrivate::() const |
309 | { |
310 | return popup && popup->isVisible(); |
311 | } |
312 | |
313 | void QQuickComboBoxPrivate::() |
314 | { |
315 | if (!popup) |
316 | executePopup(complete: true); |
317 | |
318 | if (popup && !popup->isVisible()) |
319 | popup->open(); |
320 | } |
321 | |
322 | void QQuickComboBoxPrivate::(bool accept) |
323 | { |
324 | Q_Q(QQuickComboBox); |
325 | if (accept) { |
326 | q->setCurrentIndex(highlightedIndex); |
327 | emit q->activated(index: currentIndex); |
328 | } |
329 | if (popup && popup->isVisible()) |
330 | popup->close(); |
331 | } |
332 | |
333 | void QQuickComboBoxPrivate::(bool accept) |
334 | { |
335 | if (!popup || !popup->isVisible()) |
336 | showPopup(); |
337 | else |
338 | hidePopup(accept); |
339 | } |
340 | |
341 | void QQuickComboBoxPrivate::() |
342 | { |
343 | Q_Q(QQuickComboBox); |
344 | if (isPopupVisible()) |
345 | QGuiApplication::inputMethod()->reset(); |
346 | |
347 | QQuickItemView *itemView = popup->findChild<QQuickItemView *>(); |
348 | if (itemView) |
349 | itemView->setHighlightRangeMode(QQuickItemView::NoHighlightRange); |
350 | |
351 | updateHighlightedIndex(); |
352 | |
353 | if (itemView) |
354 | itemView->positionViewAtIndex(index: highlightedIndex, mode: QQuickItemView::Beginning); |
355 | |
356 | if (!hasDown) { |
357 | q->setDown(pressed || isPopupVisible()); |
358 | hasDown = false; |
359 | } |
360 | } |
361 | |
362 | void QQuickComboBoxPrivate::itemClicked() |
363 | { |
364 | Q_Q(QQuickComboBox); |
365 | int index = delegateModel->indexOf(object: q->sender(), objectContext: nullptr); |
366 | if (index != -1) { |
367 | setHighlightedIndex(index, highlight: Highlight); |
368 | hidePopup(accept: true); |
369 | } |
370 | } |
371 | |
372 | void QQuickComboBoxPrivate::itemHovered() |
373 | { |
374 | Q_Q(QQuickComboBox); |
375 | if (keyNavigating) |
376 | return; |
377 | |
378 | QQuickAbstractButton *button = qobject_cast<QQuickAbstractButton *>(object: q->sender()); |
379 | if (!button || !button->isHovered() || QQuickAbstractButtonPrivate::get(button)->touchId != -1) |
380 | return; |
381 | |
382 | int index = delegateModel->indexOf(object: button, objectContext: nullptr); |
383 | if (index != -1) { |
384 | setHighlightedIndex(index, highlight: Highlight); |
385 | |
386 | if (QQuickItemView *itemView = popup->findChild<QQuickItemView *>()) |
387 | itemView->positionViewAtIndex(index, mode: QQuickItemView::Contain); |
388 | } |
389 | } |
390 | |
391 | void QQuickComboBoxPrivate::createdItem(int index, QObject *object) |
392 | { |
393 | Q_Q(QQuickComboBox); |
394 | QQuickItem *item = qobject_cast<QQuickItem *>(object); |
395 | if (item && !item->parentItem()) { |
396 | if (popup) |
397 | item->setParentItem(popup->contentItem()); |
398 | else |
399 | item->setParentItem(q); |
400 | QQuickItemPrivate::get(item)->setCulled(true); |
401 | } |
402 | |
403 | QQuickAbstractButton *button = qobject_cast<QQuickAbstractButton *>(object); |
404 | if (button) { |
405 | button->setFocusPolicy(Qt::NoFocus); |
406 | connect(sender: button, signal: &QQuickAbstractButton::clicked, receiverPrivate: this, slot: &QQuickComboBoxPrivate::itemClicked); |
407 | connect(sender: button, signal: &QQuickAbstractButton::hoveredChanged, receiverPrivate: this, slot: &QQuickComboBoxPrivate::itemHovered); |
408 | } |
409 | |
410 | if (index == currentIndex && !q->isEditable()) |
411 | updateCurrentTextAndValue(); |
412 | } |
413 | |
414 | void QQuickComboBoxPrivate::modelUpdated() |
415 | { |
416 | if (!extra.isAllocated() || !extra->accepting) |
417 | updateCurrentTextAndValue(); |
418 | } |
419 | |
420 | void QQuickComboBoxPrivate::countChanged() |
421 | { |
422 | Q_Q(QQuickComboBox); |
423 | if (q->count() == 0) |
424 | q->setCurrentIndex(-1); |
425 | emit q->countChanged(); |
426 | } |
427 | |
428 | void QQuickComboBoxPrivate::updateEditText() |
429 | { |
430 | Q_Q(QQuickComboBox); |
431 | QQuickTextInput *input = qobject_cast<QQuickTextInput *>(object: contentItem); |
432 | if (!input) |
433 | return; |
434 | |
435 | const QString text = input->text(); |
436 | |
437 | if (extra.isAllocated() && extra->allowComplete && !text.isEmpty()) { |
438 | const QString completed = tryComplete(inputText: text); |
439 | if (completed.length() > text.length()) { |
440 | input->setText(completed); |
441 | input->select(start: completed.length(), end: text.length()); |
442 | return; |
443 | } |
444 | } |
445 | q->setEditText(text); |
446 | } |
447 | |
448 | void QQuickComboBoxPrivate::updateCurrentText() |
449 | { |
450 | Q_Q(QQuickComboBox); |
451 | const QString text = q->textAt(index: currentIndex); |
452 | if (currentText != text) { |
453 | currentText = text; |
454 | if (!hasDisplayText) |
455 | q->maybeSetAccessibleName(name: text); |
456 | emit q->currentTextChanged(); |
457 | } |
458 | if (!hasDisplayText && displayText != text) { |
459 | displayText = text; |
460 | emit q->displayTextChanged(); |
461 | } |
462 | if (!extra.isAllocated() || !extra->accepting) |
463 | q->setEditText(currentText); |
464 | } |
465 | |
466 | void QQuickComboBoxPrivate::updateCurrentValue() |
467 | { |
468 | Q_Q(QQuickComboBox); |
469 | const QVariant value = q->valueAt(index: currentIndex); |
470 | if (currentValue == value) |
471 | return; |
472 | |
473 | currentValue = value; |
474 | emit q->currentValueChanged(); |
475 | } |
476 | |
477 | void QQuickComboBoxPrivate::updateCurrentTextAndValue() |
478 | { |
479 | updateCurrentText(); |
480 | updateCurrentValue(); |
481 | } |
482 | |
483 | void QQuickComboBoxPrivate::updateAcceptableInput() |
484 | { |
485 | Q_Q(QQuickComboBox); |
486 | |
487 | if (!contentItem) |
488 | return; |
489 | |
490 | const QQuickTextInput *textInputContentItem = qobject_cast<QQuickTextInput *>(object: contentItem); |
491 | |
492 | if (!textInputContentItem) |
493 | return; |
494 | |
495 | const bool newValue = textInputContentItem->hasAcceptableInput(); |
496 | |
497 | if (m_acceptableInput != newValue) { |
498 | m_acceptableInput = newValue; |
499 | emit q->acceptableInputChanged(); |
500 | } |
501 | } |
502 | |
503 | bool QQuickComboBoxPrivate::isValidIndex(int index) const |
504 | { |
505 | return delegateModel && index >= 0 && index < delegateModel->count(); |
506 | } |
507 | |
508 | void QQuickComboBoxPrivate::acceptInput() |
509 | { |
510 | Q_Q(QQuickComboBox); |
511 | int idx = q->find(text: extra.value().editText, flags: Qt::MatchFixedString); |
512 | if (idx > -1) |
513 | q->setCurrentIndex(idx); |
514 | |
515 | extra.value().accepting = true; |
516 | emit q->accepted(); |
517 | |
518 | if (idx == -1) |
519 | q->setCurrentIndex(q->find(text: extra.value().editText, flags: Qt::MatchFixedString)); |
520 | extra.value().accepting = false; |
521 | } |
522 | |
523 | QString QQuickComboBoxPrivate::tryComplete(const QString &input) |
524 | { |
525 | Q_Q(QQuickComboBox); |
526 | QString match; |
527 | |
528 | const int itemCount = q->count(); |
529 | for (int idx = 0; idx < itemCount; ++idx) { |
530 | const QString text = q->textAt(index: idx); |
531 | if (!text.startsWith(s: input, cs: Qt::CaseInsensitive)) |
532 | continue; |
533 | |
534 | // either the first or the shortest match |
535 | if (match.isEmpty() || text.length() < match.length()) |
536 | match = text; |
537 | } |
538 | |
539 | if (match.isEmpty()) |
540 | return input; |
541 | |
542 | return input + match.mid(position: input.length()); |
543 | } |
544 | |
545 | void QQuickComboBoxPrivate::setCurrentIndex(int index, Activation activate) |
546 | { |
547 | Q_Q(QQuickComboBox); |
548 | if (currentIndex == index) |
549 | return; |
550 | |
551 | currentIndex = index; |
552 | emit q->currentIndexChanged(); |
553 | |
554 | if (componentComplete) |
555 | updateCurrentTextAndValue(); |
556 | |
557 | if (activate) |
558 | emit q->activated(index); |
559 | } |
560 | |
561 | void QQuickComboBoxPrivate::incrementCurrentIndex() |
562 | { |
563 | Q_Q(QQuickComboBox); |
564 | if (extra.isAllocated()) |
565 | extra->allowComplete = false; |
566 | if (isPopupVisible()) { |
567 | if (highlightedIndex < q->count() - 1) |
568 | setHighlightedIndex(index: highlightedIndex + 1, highlight: Highlight); |
569 | } else { |
570 | if (currentIndex < q->count() - 1) |
571 | setCurrentIndex(index: currentIndex + 1, activate: Activate); |
572 | } |
573 | if (extra.isAllocated()) |
574 | extra->allowComplete = true; |
575 | } |
576 | |
577 | void QQuickComboBoxPrivate::decrementCurrentIndex() |
578 | { |
579 | if (extra.isAllocated()) |
580 | extra->allowComplete = false; |
581 | if (isPopupVisible()) { |
582 | if (highlightedIndex > 0) |
583 | setHighlightedIndex(index: highlightedIndex - 1, highlight: Highlight); |
584 | } else { |
585 | if (currentIndex > 0) |
586 | setCurrentIndex(index: currentIndex - 1, activate: Activate); |
587 | } |
588 | if (extra.isAllocated()) |
589 | extra->allowComplete = true; |
590 | } |
591 | |
592 | void QQuickComboBoxPrivate::updateHighlightedIndex() |
593 | { |
594 | setHighlightedIndex(index: popup->isVisible() ? currentIndex : -1, highlight: NoHighlight); |
595 | } |
596 | |
597 | void QQuickComboBoxPrivate::setHighlightedIndex(int index, Highlighting highlight) |
598 | { |
599 | Q_Q(QQuickComboBox); |
600 | if (highlightedIndex == index) |
601 | return; |
602 | |
603 | highlightedIndex = index; |
604 | emit q->highlightedIndexChanged(); |
605 | |
606 | if (highlight) |
607 | emit q->highlighted(index); |
608 | } |
609 | |
610 | void QQuickComboBoxPrivate::keySearch(const QString &text) |
611 | { |
612 | const int startIndex = isPopupVisible() ? highlightedIndex : currentIndex; |
613 | const int index = match(start: startIndex + 1, text, flags: Qt::MatchStartsWith | Qt::MatchWrap); |
614 | if (index != -1) { |
615 | if (isPopupVisible()) |
616 | setHighlightedIndex(index, highlight: Highlight); |
617 | else |
618 | setCurrentIndex(index, activate: Activate); |
619 | } |
620 | } |
621 | |
622 | int QQuickComboBoxPrivate::match(int start, const QString &text, Qt::MatchFlags flags) const |
623 | { |
624 | Q_Q(const QQuickComboBox); |
625 | uint matchType = flags & 0x0F; |
626 | bool wrap = flags & Qt::MatchWrap; |
627 | Qt::CaseSensitivity cs = flags & Qt::MatchCaseSensitive ? Qt::CaseSensitive : Qt::CaseInsensitive; |
628 | QRegularExpression::PatternOptions options = flags & Qt::MatchCaseSensitive ? QRegularExpression::NoPatternOption |
629 | : QRegularExpression::CaseInsensitiveOption; |
630 | int from = start; |
631 | int to = q->count(); |
632 | |
633 | // iterates twice if wrapping |
634 | for (int i = 0; (wrap && i < 2) || (!wrap && i < 1); ++i) { |
635 | for (int idx = from; idx < to; ++idx) { |
636 | QString t = q->textAt(index: idx); |
637 | switch (matchType) { |
638 | case Qt::MatchExactly: |
639 | if (t == text) |
640 | return idx; |
641 | break; |
642 | case Qt::MatchRegExp: { |
643 | QRegularExpression rx(QRegularExpression::anchoredPattern(expression: text), options); |
644 | if (rx.match(subject: t).hasMatch()) |
645 | return idx; |
646 | break; |
647 | } |
648 | case Qt::MatchWildcard: { |
649 | QRegularExpression rx(QRegularExpression::wildcardToRegularExpression(str: text), |
650 | options); |
651 | if (rx.match(subject: t).hasMatch()) |
652 | return idx; |
653 | break; |
654 | } |
655 | case Qt::MatchStartsWith: |
656 | if (t.startsWith(s: text, cs)) |
657 | return idx; |
658 | break; |
659 | case Qt::MatchEndsWith: |
660 | if (t.endsWith(s: text, cs)) |
661 | return idx; |
662 | break; |
663 | case Qt::MatchFixedString: |
664 | if (t.compare(s: text, cs) == 0) |
665 | return idx; |
666 | break; |
667 | case Qt::MatchContains: |
668 | default: |
669 | if (t.contains(s: text, cs)) |
670 | return idx; |
671 | break; |
672 | } |
673 | } |
674 | // prepare for the next iteration |
675 | from = 0; |
676 | to = start; |
677 | } |
678 | return -1; |
679 | } |
680 | |
681 | void QQuickComboBoxPrivate::createDelegateModel() |
682 | { |
683 | Q_Q(QQuickComboBox); |
684 | bool ownedOldModel = ownModel; |
685 | QQmlInstanceModel* oldModel = delegateModel; |
686 | if (oldModel) { |
687 | disconnect(sender: delegateModel, signal: &QQmlInstanceModel::countChanged, receiverPrivate: this, slot: &QQuickComboBoxPrivate::countChanged); |
688 | disconnect(sender: delegateModel, signal: &QQmlInstanceModel::modelUpdated, receiverPrivate: this, slot: &QQuickComboBoxPrivate::modelUpdated); |
689 | disconnect(sender: delegateModel, signal: &QQmlInstanceModel::createdItem, receiverPrivate: this, slot: &QQuickComboBoxPrivate::createdItem); |
690 | } |
691 | |
692 | ownModel = false; |
693 | delegateModel = model.value<QQmlInstanceModel *>(); |
694 | |
695 | if (!delegateModel && model.isValid()) { |
696 | QQmlDelegateModel *dataModel = new QQuickComboBoxDelegateModel(q); |
697 | dataModel->setModel(model); |
698 | dataModel->setDelegate(delegate); |
699 | if (q->isComponentComplete()) |
700 | dataModel->componentComplete(); |
701 | |
702 | ownModel = true; |
703 | delegateModel = dataModel; |
704 | } |
705 | |
706 | if (delegateModel) { |
707 | connect(sender: delegateModel, signal: &QQmlInstanceModel::countChanged, receiverPrivate: this, slot: &QQuickComboBoxPrivate::countChanged); |
708 | connect(sender: delegateModel, signal: &QQmlInstanceModel::modelUpdated, receiverPrivate: this, slot: &QQuickComboBoxPrivate::modelUpdated); |
709 | connect(sender: delegateModel, signal: &QQmlInstanceModel::createdItem, receiverPrivate: this, slot: &QQuickComboBoxPrivate::createdItem); |
710 | } |
711 | |
712 | emit q->delegateModelChanged(); |
713 | |
714 | if (ownedOldModel) |
715 | delete oldModel; |
716 | } |
717 | |
718 | void QQuickComboBoxPrivate::handlePress(const QPointF &point) |
719 | { |
720 | Q_Q(QQuickComboBox); |
721 | QQuickControlPrivate::handlePress(point); |
722 | q->setPressed(true); |
723 | } |
724 | |
725 | void QQuickComboBoxPrivate::handleMove(const QPointF &point) |
726 | { |
727 | Q_Q(QQuickComboBox); |
728 | QQuickControlPrivate::handleMove(point); |
729 | q->setPressed(q->contains(point)); |
730 | } |
731 | |
732 | void QQuickComboBoxPrivate::handleRelease(const QPointF &point) |
733 | { |
734 | Q_Q(QQuickComboBox); |
735 | QQuickControlPrivate::handleRelease(point); |
736 | if (pressed) { |
737 | q->setPressed(false); |
738 | togglePopup(accept: false); |
739 | } |
740 | } |
741 | |
742 | void QQuickComboBoxPrivate::handleUngrab() |
743 | { |
744 | Q_Q(QQuickComboBox); |
745 | QQuickControlPrivate::handleUngrab(); |
746 | q->setPressed(false); |
747 | } |
748 | |
749 | static inline QString indicatorName() { return QStringLiteral("indicator" ); } |
750 | |
751 | void QQuickComboBoxPrivate::cancelIndicator() |
752 | { |
753 | Q_Q(QQuickComboBox); |
754 | quickCancelDeferred(object: q, property: indicatorName()); |
755 | } |
756 | |
757 | void QQuickComboBoxPrivate::executeIndicator(bool complete) |
758 | { |
759 | Q_Q(QQuickComboBox); |
760 | if (indicator.wasExecuted()) |
761 | return; |
762 | |
763 | if (!indicator || complete) |
764 | quickBeginDeferred(object: q, property: indicatorName(), delegate&: indicator); |
765 | if (complete) |
766 | quickCompleteDeferred(object: q, property: indicatorName(), delegate&: indicator); |
767 | } |
768 | |
769 | static inline QString () { return QStringLiteral("popup" ); } |
770 | |
771 | void QQuickComboBoxPrivate::() |
772 | { |
773 | Q_Q(QQuickComboBox); |
774 | quickCancelDeferred(object: q, property: popupName()); |
775 | } |
776 | |
777 | void QQuickComboBoxPrivate::(bool complete) |
778 | { |
779 | Q_Q(QQuickComboBox); |
780 | if (popup.wasExecuted()) |
781 | return; |
782 | |
783 | if (!popup || complete) |
784 | quickBeginDeferred(object: q, property: popupName(), delegate&: popup); |
785 | if (complete) |
786 | quickCompleteDeferred(object: q, property: popupName(), delegate&: popup); |
787 | } |
788 | |
789 | void QQuickComboBoxPrivate::itemImplicitWidthChanged(QQuickItem *item) |
790 | { |
791 | Q_Q(QQuickComboBox); |
792 | QQuickControlPrivate::itemImplicitWidthChanged(item); |
793 | if (item == indicator) |
794 | emit q->implicitIndicatorWidthChanged(); |
795 | } |
796 | |
797 | void QQuickComboBoxPrivate::setInputMethodHints(Qt::InputMethodHints hints, bool force) |
798 | { |
799 | Q_Q(QQuickComboBox); |
800 | if (!force && hints == q->inputMethodHints()) |
801 | return; |
802 | |
803 | extra.value().inputMethodHints = hints; |
804 | emit q->inputMethodHintsChanged(); |
805 | } |
806 | |
807 | void QQuickComboBoxPrivate::itemImplicitHeightChanged(QQuickItem *item) |
808 | { |
809 | Q_Q(QQuickComboBox); |
810 | QQuickControlPrivate::itemImplicitHeightChanged(item); |
811 | if (item == indicator) |
812 | emit q->implicitIndicatorHeightChanged(); |
813 | } |
814 | |
815 | void QQuickComboBoxPrivate::(QQuickPopup *) |
816 | { |
817 | if (!popup) |
818 | return; |
819 | |
820 | qCDebug(lcItemManagement) << "hiding old popup" << popup; |
821 | |
822 | popup->setVisible(false); |
823 | popup->setParentItem(nullptr); |
824 | #if QT_CONFIG(accessibility) |
825 | // Remove the item from the accessibility tree. |
826 | QQuickAccessibleAttached *accessible = accessibleAttached(object: popup); |
827 | if (accessible) |
828 | accessible->setIgnored(true); |
829 | #endif |
830 | } |
831 | |
832 | QQuickComboBox::QQuickComboBox(QQuickItem *parent) |
833 | : QQuickControl(*(new QQuickComboBoxPrivate), parent) |
834 | { |
835 | setFocusPolicy(Qt::StrongFocus); |
836 | setFlag(flag: QQuickItem::ItemIsFocusScope); |
837 | setAcceptedMouseButtons(Qt::LeftButton); |
838 | #if QT_CONFIG(cursor) |
839 | setCursor(Qt::ArrowCursor); |
840 | #endif |
841 | Q_D(QQuickComboBox); |
842 | d->setInputMethodHints(hints: Qt::ImhNoPredictiveText, force: true); |
843 | } |
844 | |
845 | QQuickComboBox::~QQuickComboBox() |
846 | { |
847 | Q_D(QQuickComboBox); |
848 | d->removeImplicitSizeListener(item: d->indicator); |
849 | if (d->popup) { |
850 | // Disconnect visibleChanged() to avoid a spurious highlightedIndexChanged() signal |
851 | // emission during the destruction of the (visible) popup. (QTBUG-57650) |
852 | QObjectPrivate::disconnect(sender: d->popup.data(), signal: &QQuickPopup::visibleChanged, receiverPrivate: d, slot: &QQuickComboBoxPrivate::popupVisibleChanged); |
853 | QQuickComboBoxPrivate::hideOldPopup(popup: d->popup); |
854 | d->popup = nullptr; |
855 | } |
856 | } |
857 | |
858 | /*! |
859 | \readonly |
860 | \qmlproperty int QtQuick.Controls::ComboBox::count |
861 | |
862 | This property holds the number of items in the combo box. |
863 | */ |
864 | int QQuickComboBox::count() const |
865 | { |
866 | Q_D(const QQuickComboBox); |
867 | return d->delegateModel ? d->delegateModel->count() : 0; |
868 | } |
869 | |
870 | /*! |
871 | \qmlproperty model QtQuick.Controls::ComboBox::model |
872 | |
873 | This property holds the model providing data for the combo box. |
874 | |
875 | \code |
876 | ComboBox { |
877 | textRole: "key" |
878 | model: ListModel { |
879 | ListElement { key: "First"; value: 123 } |
880 | ListElement { key: "Second"; value: 456 } |
881 | ListElement { key: "Third"; value: 789 } |
882 | } |
883 | } |
884 | \endcode |
885 | |
886 | \sa textRole, {qml-data-models}{Data Models} |
887 | */ |
888 | QVariant QQuickComboBox::model() const |
889 | { |
890 | Q_D(const QQuickComboBox); |
891 | return d->model; |
892 | } |
893 | |
894 | void QQuickComboBox::setModel(const QVariant& m) |
895 | { |
896 | Q_D(QQuickComboBox); |
897 | QVariant model = m; |
898 | if (model.userType() == qMetaTypeId<QJSValue>()) |
899 | model = model.value<QJSValue>().toVariant(); |
900 | |
901 | if (d->model == model) |
902 | return; |
903 | |
904 | if (QAbstractItemModel* aim = qvariant_cast<QAbstractItemModel *>(v: d->model)) { |
905 | QObjectPrivate::disconnect(sender: aim, signal: &QAbstractItemModel::dataChanged, |
906 | receiverPrivate: d, slot: QOverload<>::of(ptr: &QQuickComboBoxPrivate::updateCurrentTextAndValue)); |
907 | } |
908 | if (QAbstractItemModel* aim = qvariant_cast<QAbstractItemModel *>(v: model)) { |
909 | QObjectPrivate::connect(sender: aim, signal: &QAbstractItemModel::dataChanged, |
910 | receiverPrivate: d, slot: QOverload<>::of(ptr: &QQuickComboBoxPrivate::updateCurrentTextAndValue)); |
911 | } |
912 | |
913 | d->model = model; |
914 | d->createDelegateModel(); |
915 | emit countChanged(); |
916 | if (isComponentComplete()) { |
917 | setCurrentIndex(count() > 0 ? 0 : -1); |
918 | d->updateCurrentTextAndValue(); |
919 | } |
920 | emit modelChanged(); |
921 | } |
922 | |
923 | /*! |
924 | \internal |
925 | \qmlproperty model QtQuick.Controls::ComboBox::delegateModel |
926 | |
927 | This property holds the model providing delegate instances for the combo box. |
928 | */ |
929 | QQmlInstanceModel *QQuickComboBox::delegateModel() const |
930 | { |
931 | Q_D(const QQuickComboBox); |
932 | return d->delegateModel; |
933 | } |
934 | |
935 | |
936 | /*! |
937 | \qmlproperty bool QtQuick.Controls::ComboBox::pressed |
938 | |
939 | This property holds whether the combo box button is physically pressed. |
940 | A button can be pressed by either touch or key events. |
941 | |
942 | \sa down |
943 | */ |
944 | bool QQuickComboBox::isPressed() const |
945 | { |
946 | Q_D(const QQuickComboBox); |
947 | return d->pressed; |
948 | } |
949 | |
950 | void QQuickComboBox::setPressed(bool pressed) |
951 | { |
952 | Q_D(QQuickComboBox); |
953 | if (d->pressed == pressed) |
954 | return; |
955 | |
956 | d->pressed = pressed; |
957 | emit pressedChanged(); |
958 | |
959 | if (!d->hasDown) { |
960 | setDown(d->pressed || d->isPopupVisible()); |
961 | d->hasDown = false; |
962 | } |
963 | } |
964 | |
965 | /*! |
966 | \readonly |
967 | \qmlproperty int QtQuick.Controls::ComboBox::highlightedIndex |
968 | |
969 | This property holds the index of the highlighted item in the combo box popup list. |
970 | |
971 | When a highlighted item is activated, the popup is closed, \l currentIndex |
972 | is set to \c highlightedIndex, and the value of this property is reset to |
973 | \c -1, as there is no longer a highlighted item. |
974 | |
975 | \sa highlighted(), currentIndex |
976 | */ |
977 | int QQuickComboBox::highlightedIndex() const |
978 | { |
979 | Q_D(const QQuickComboBox); |
980 | return d->highlightedIndex; |
981 | } |
982 | |
983 | /*! |
984 | \qmlproperty int QtQuick.Controls::ComboBox::currentIndex |
985 | |
986 | This property holds the index of the current item in the combo box. |
987 | |
988 | The default value is \c -1 when \l count is \c 0, and \c 0 otherwise. |
989 | |
990 | \sa activated(), currentText, highlightedIndex |
991 | */ |
992 | int QQuickComboBox::currentIndex() const |
993 | { |
994 | Q_D(const QQuickComboBox); |
995 | return d->currentIndex; |
996 | } |
997 | |
998 | void QQuickComboBox::setCurrentIndex(int index) |
999 | { |
1000 | Q_D(QQuickComboBox); |
1001 | d->hasCurrentIndex = true; |
1002 | d->setCurrentIndex(index, activate: NoActivate); |
1003 | } |
1004 | |
1005 | /*! |
1006 | \readonly |
1007 | \qmlproperty string QtQuick.Controls::ComboBox::currentText |
1008 | |
1009 | This property holds the text of the current item in the combo box. |
1010 | |
1011 | \sa currentIndex, displayText, textRole, editText |
1012 | */ |
1013 | QString QQuickComboBox::currentText() const |
1014 | { |
1015 | Q_D(const QQuickComboBox); |
1016 | return d->currentText; |
1017 | } |
1018 | |
1019 | /*! |
1020 | \qmlproperty string QtQuick.Controls::ComboBox::displayText |
1021 | |
1022 | This property holds the text that is displayed on the combo box button. |
1023 | |
1024 | By default, the display text presents the current selection. That is, |
1025 | it follows the text of the current item. However, the default display |
1026 | text can be overridden with a custom value. |
1027 | |
1028 | \code |
1029 | ComboBox { |
1030 | currentIndex: 1 |
1031 | displayText: "Size: " + currentText |
1032 | model: ["S", "M", "L"] |
1033 | } |
1034 | \endcode |
1035 | |
1036 | \sa currentText, textRole |
1037 | */ |
1038 | QString QQuickComboBox::displayText() const |
1039 | { |
1040 | Q_D(const QQuickComboBox); |
1041 | return d->displayText; |
1042 | } |
1043 | |
1044 | void QQuickComboBox::setDisplayText(const QString &text) |
1045 | { |
1046 | Q_D(QQuickComboBox); |
1047 | d->hasDisplayText = true; |
1048 | if (d->displayText == text) |
1049 | return; |
1050 | |
1051 | d->displayText = text; |
1052 | maybeSetAccessibleName(name: text); |
1053 | emit displayTextChanged(); |
1054 | } |
1055 | |
1056 | void QQuickComboBox::resetDisplayText() |
1057 | { |
1058 | Q_D(QQuickComboBox); |
1059 | if (!d->hasDisplayText) |
1060 | return; |
1061 | |
1062 | d->hasDisplayText = false; |
1063 | d->updateCurrentText(); |
1064 | } |
1065 | |
1066 | |
1067 | /*! |
1068 | \qmlproperty string QtQuick.Controls::ComboBox::textRole |
1069 | |
1070 | This property holds the model role used for populating the combo box. |
1071 | |
1072 | When the model has multiple roles, \c textRole can be set to determine |
1073 | which role should be displayed. |
1074 | |
1075 | \sa model, currentText, displayText, {ComboBox Model Roles} |
1076 | */ |
1077 | QString QQuickComboBox::textRole() const |
1078 | { |
1079 | Q_D(const QQuickComboBox); |
1080 | return d->textRole; |
1081 | } |
1082 | |
1083 | void QQuickComboBox::setTextRole(const QString &role) |
1084 | { |
1085 | Q_D(QQuickComboBox); |
1086 | if (d->textRole == role) |
1087 | return; |
1088 | |
1089 | d->textRole = role; |
1090 | if (isComponentComplete()) |
1091 | d->updateCurrentText(); |
1092 | emit textRoleChanged(); |
1093 | } |
1094 | |
1095 | /*! |
1096 | \since QtQuick.Controls 2.14 (Qt 5.14) |
1097 | \qmlproperty string QtQuick.Controls::ComboBox::valueRole |
1098 | |
1099 | This property holds the model role used for storing the value associated |
1100 | with each item in the model. |
1101 | |
1102 | For an example of how to use this property, see \l {ComboBox Model Roles}. |
1103 | |
1104 | \sa model, currentValue |
1105 | */ |
1106 | QString QQuickComboBox::valueRole() const |
1107 | { |
1108 | Q_D(const QQuickComboBox); |
1109 | return d->valueRole; |
1110 | } |
1111 | |
1112 | void QQuickComboBox::setValueRole(const QString &role) |
1113 | { |
1114 | Q_D(QQuickComboBox); |
1115 | if (d->valueRole == role) |
1116 | return; |
1117 | |
1118 | d->valueRole = role; |
1119 | if (isComponentComplete()) |
1120 | d->updateCurrentValue(); |
1121 | emit valueRoleChanged(); |
1122 | } |
1123 | |
1124 | /*! |
1125 | \qmlproperty Component QtQuick.Controls::ComboBox::delegate |
1126 | |
1127 | This property holds a delegate that presents an item in the combo box popup. |
1128 | |
1129 | It is recommended to use \l ItemDelegate (or any other \l AbstractButton |
1130 | derivatives) as the delegate. This ensures that the interaction works as |
1131 | expected, and the popup will automatically close when appropriate. When |
1132 | other types are used as the delegate, the popup must be closed manually. |
1133 | For example, if \l MouseArea is used: |
1134 | |
1135 | \code |
1136 | delegate: Rectangle { |
1137 | // ... |
1138 | MouseArea { |
1139 | // ... |
1140 | onClicked: comboBox.popup.close() |
1141 | } |
1142 | } |
1143 | \endcode |
1144 | |
1145 | \sa ItemDelegate, {Customizing ComboBox} |
1146 | */ |
1147 | QQmlComponent *QQuickComboBox::delegate() const |
1148 | { |
1149 | Q_D(const QQuickComboBox); |
1150 | return d->delegate; |
1151 | } |
1152 | |
1153 | void QQuickComboBox::setDelegate(QQmlComponent* delegate) |
1154 | { |
1155 | Q_D(QQuickComboBox); |
1156 | if (d->delegate == delegate) |
1157 | return; |
1158 | |
1159 | delete d->delegate; |
1160 | d->delegate = delegate; |
1161 | QQmlDelegateModel *delegateModel = qobject_cast<QQmlDelegateModel*>(object: d->delegateModel); |
1162 | if (delegateModel) |
1163 | delegateModel->setDelegate(d->delegate); |
1164 | emit delegateChanged(); |
1165 | } |
1166 | |
1167 | /*! |
1168 | \qmlproperty Item QtQuick.Controls::ComboBox::indicator |
1169 | |
1170 | This property holds the drop indicator item. |
1171 | |
1172 | \sa {Customizing ComboBox} |
1173 | */ |
1174 | QQuickItem *QQuickComboBox::indicator() const |
1175 | { |
1176 | QQuickComboBoxPrivate *d = const_cast<QQuickComboBoxPrivate *>(d_func()); |
1177 | if (!d->indicator) |
1178 | d->executeIndicator(); |
1179 | return d->indicator; |
1180 | } |
1181 | |
1182 | void QQuickComboBox::setIndicator(QQuickItem *indicator) |
1183 | { |
1184 | Q_D(QQuickComboBox); |
1185 | if (d->indicator == indicator) |
1186 | return; |
1187 | |
1188 | if (!d->indicator.isExecuting()) |
1189 | d->cancelIndicator(); |
1190 | |
1191 | const qreal oldImplicitIndicatorWidth = implicitIndicatorWidth(); |
1192 | const qreal oldImplicitIndicatorHeight = implicitIndicatorHeight(); |
1193 | |
1194 | d->removeImplicitSizeListener(item: d->indicator); |
1195 | QQuickControlPrivate::hideOldItem(item: d->indicator); |
1196 | d->indicator = indicator; |
1197 | if (indicator) { |
1198 | if (!indicator->parentItem()) |
1199 | indicator->setParentItem(this); |
1200 | d->addImplicitSizeListener(item: indicator); |
1201 | } |
1202 | |
1203 | if (!qFuzzyCompare(p1: oldImplicitIndicatorWidth, p2: implicitIndicatorWidth())) |
1204 | emit implicitIndicatorWidthChanged(); |
1205 | if (!qFuzzyCompare(p1: oldImplicitIndicatorHeight, p2: implicitIndicatorHeight())) |
1206 | emit implicitIndicatorHeightChanged(); |
1207 | if (!d->indicator.isExecuting()) |
1208 | emit indicatorChanged(); |
1209 | } |
1210 | |
1211 | /*! |
1212 | \qmlproperty Popup QtQuick.Controls::ComboBox::popup |
1213 | |
1214 | This property holds the popup. |
1215 | |
1216 | The popup can be opened or closed manually, if necessary: |
1217 | |
1218 | \code |
1219 | onSpecialEvent: comboBox.popup.close() |
1220 | \endcode |
1221 | |
1222 | \sa {Customizing ComboBox} |
1223 | */ |
1224 | QQuickPopup *QQuickComboBox::() const |
1225 | { |
1226 | QQuickComboBoxPrivate *d = const_cast<QQuickComboBoxPrivate *>(d_func()); |
1227 | if (!d->popup) |
1228 | d->executePopup(complete: isComponentComplete()); |
1229 | return d->popup; |
1230 | } |
1231 | |
1232 | void QQuickComboBox::(QQuickPopup *) |
1233 | { |
1234 | Q_D(QQuickComboBox); |
1235 | if (d->popup == popup) |
1236 | return; |
1237 | |
1238 | if (!d->popup.isExecuting()) |
1239 | d->cancelPopup(); |
1240 | |
1241 | if (d->popup) { |
1242 | QObjectPrivate::disconnect(sender: d->popup.data(), signal: &QQuickPopup::visibleChanged, receiverPrivate: d, slot: &QQuickComboBoxPrivate::popupVisibleChanged); |
1243 | QQuickComboBoxPrivate::hideOldPopup(popup: d->popup); |
1244 | } |
1245 | if (popup) { |
1246 | QQuickPopupPrivate::get(popup)->allowVerticalFlip = true; |
1247 | popup->setClosePolicy(QQuickPopup::CloseOnEscape | QQuickPopup::CloseOnPressOutsideParent); |
1248 | QObjectPrivate::connect(sender: popup, signal: &QQuickPopup::visibleChanged, receiverPrivate: d, slot: &QQuickComboBoxPrivate::popupVisibleChanged); |
1249 | |
1250 | if (QQuickItemView *itemView = popup->findChild<QQuickItemView *>()) |
1251 | itemView->setHighlightRangeMode(QQuickItemView::NoHighlightRange); |
1252 | } |
1253 | d->popup = popup; |
1254 | if (!d->popup.isExecuting()) |
1255 | emit popupChanged(); |
1256 | } |
1257 | |
1258 | /*! |
1259 | \since QtQuick.Controls 2.1 (Qt 5.8) |
1260 | \qmlproperty bool QtQuick.Controls::ComboBox::flat |
1261 | |
1262 | This property holds whether the combo box button is flat. |
1263 | |
1264 | A flat combo box button does not draw a background unless it is interacted |
1265 | with. In comparison to normal combo boxes, flat combo boxes provide looks |
1266 | that make them stand out less from the rest of the UI. For instance, when |
1267 | placing a combo box into a tool bar, it may be desirable to make the combo |
1268 | box flat so it matches better with the flat looks of tool buttons. |
1269 | |
1270 | The default value is \c false. |
1271 | */ |
1272 | bool QQuickComboBox::isFlat() const |
1273 | { |
1274 | Q_D(const QQuickComboBox); |
1275 | return d->flat; |
1276 | } |
1277 | |
1278 | void QQuickComboBox::setFlat(bool flat) |
1279 | { |
1280 | Q_D(QQuickComboBox); |
1281 | if (d->flat == flat) |
1282 | return; |
1283 | |
1284 | d->flat = flat; |
1285 | emit flatChanged(); |
1286 | } |
1287 | |
1288 | /*! |
1289 | \since QtQuick.Controls 2.2 (Qt 5.9) |
1290 | \qmlproperty bool QtQuick.Controls::ComboBox::down |
1291 | |
1292 | This property holds whether the combo box button is visually down. |
1293 | |
1294 | Unless explicitly set, this property is \c true when either \c pressed |
1295 | or \c popup.visible is \c true. To return to the default value, set this |
1296 | property to \c undefined. |
1297 | |
1298 | \sa pressed, popup |
1299 | */ |
1300 | bool QQuickComboBox::isDown() const |
1301 | { |
1302 | Q_D(const QQuickComboBox); |
1303 | return d->down; |
1304 | } |
1305 | |
1306 | void QQuickComboBox::setDown(bool down) |
1307 | { |
1308 | Q_D(QQuickComboBox); |
1309 | d->hasDown = true; |
1310 | |
1311 | if (d->down == down) |
1312 | return; |
1313 | |
1314 | d->down = down; |
1315 | emit downChanged(); |
1316 | } |
1317 | |
1318 | void QQuickComboBox::resetDown() |
1319 | { |
1320 | Q_D(QQuickComboBox); |
1321 | if (!d->hasDown) |
1322 | return; |
1323 | |
1324 | setDown(d->pressed || d->isPopupVisible()); |
1325 | d->hasDown = false; |
1326 | } |
1327 | |
1328 | /*! |
1329 | \since QtQuick.Controls 2.2 (Qt 5.9) |
1330 | \qmlproperty bool QtQuick.Controls::ComboBox::editable |
1331 | |
1332 | This property holds whether the combo box is editable. |
1333 | |
1334 | The default value is \c false. |
1335 | |
1336 | \sa validator |
1337 | */ |
1338 | bool QQuickComboBox::isEditable() const |
1339 | { |
1340 | Q_D(const QQuickComboBox); |
1341 | return d->extra.isAllocated() && d->extra->editable; |
1342 | } |
1343 | |
1344 | void QQuickComboBox::setEditable(bool editable) |
1345 | { |
1346 | Q_D(QQuickComboBox); |
1347 | if (editable == isEditable()) |
1348 | return; |
1349 | |
1350 | if (d->contentItem) { |
1351 | if (editable) { |
1352 | d->contentItem->installEventFilter(filterObj: this); |
1353 | if (QQuickTextInput *input = qobject_cast<QQuickTextInput *>(object: d->contentItem)) { |
1354 | QObjectPrivate::connect(sender: input, signal: &QQuickTextInput::textChanged, receiverPrivate: d, slot: &QQuickComboBoxPrivate::updateEditText); |
1355 | QObjectPrivate::connect(sender: input, signal: &QQuickTextInput::accepted, receiverPrivate: d, slot: &QQuickComboBoxPrivate::acceptInput); |
1356 | } |
1357 | #if QT_CONFIG(cursor) |
1358 | d->contentItem->setCursor(Qt::IBeamCursor); |
1359 | #endif |
1360 | } else { |
1361 | d->contentItem->removeEventFilter(obj: this); |
1362 | if (QQuickTextInput *input = qobject_cast<QQuickTextInput *>(object: d->contentItem)) { |
1363 | QObjectPrivate::disconnect(sender: input, signal: &QQuickTextInput::textChanged, receiverPrivate: d, slot: &QQuickComboBoxPrivate::updateEditText); |
1364 | QObjectPrivate::disconnect(sender: input, signal: &QQuickTextInput::accepted, receiverPrivate: d, slot: &QQuickComboBoxPrivate::acceptInput); |
1365 | } |
1366 | #if QT_CONFIG(cursor) |
1367 | d->contentItem->unsetCursor(); |
1368 | #endif |
1369 | } |
1370 | } |
1371 | |
1372 | d->extra.value().editable = editable; |
1373 | setAccessibleProperty(propertyName: "editable" , value: editable); |
1374 | emit editableChanged(); |
1375 | } |
1376 | |
1377 | /*! |
1378 | \since QtQuick.Controls 2.2 (Qt 5.9) |
1379 | \qmlproperty string QtQuick.Controls::ComboBox::editText |
1380 | |
1381 | This property holds the text in the text field of an editable combo box. |
1382 | |
1383 | \sa editable, currentText, displayText |
1384 | */ |
1385 | QString QQuickComboBox::editText() const |
1386 | { |
1387 | Q_D(const QQuickComboBox); |
1388 | return d->extra.isAllocated() ? d->extra->editText : QString(); |
1389 | } |
1390 | |
1391 | void QQuickComboBox::setEditText(const QString &text) |
1392 | { |
1393 | Q_D(QQuickComboBox); |
1394 | if (text == editText()) |
1395 | return; |
1396 | |
1397 | d->extra.value().editText = text; |
1398 | emit editTextChanged(); |
1399 | } |
1400 | |
1401 | void QQuickComboBox::resetEditText() |
1402 | { |
1403 | setEditText(QString()); |
1404 | } |
1405 | |
1406 | /*! |
1407 | \since QtQuick.Controls 2.2 (Qt 5.9) |
1408 | \qmlproperty Validator QtQuick.Controls::ComboBox::validator |
1409 | |
1410 | This property holds an input text validator for an editable combo box. |
1411 | |
1412 | When a validator is set, the text field will only accept input which |
1413 | leaves the text property in an intermediate state. The \l accepted signal |
1414 | will only be emitted if the text is in an acceptable state when the |
1415 | \uicontrol Return or \uicontrol Enter key is pressed. |
1416 | |
1417 | The currently supported validators are \l[QtQuick]{IntValidator}, |
1418 | \l[QtQuick]{DoubleValidator}, and \l[QtQuick]{RegExpValidator}. An |
1419 | example of using validators is shown below, which allows input of |
1420 | integers between \c 0 and \c 10 into the text field: |
1421 | |
1422 | \code |
1423 | ComboBox { |
1424 | model: 10 |
1425 | editable: true |
1426 | validator: IntValidator { |
1427 | top: 9 |
1428 | bottom: 0 |
1429 | } |
1430 | } |
1431 | \endcode |
1432 | |
1433 | \sa acceptableInput, accepted, editable |
1434 | */ |
1435 | QValidator *QQuickComboBox::validator() const |
1436 | { |
1437 | Q_D(const QQuickComboBox); |
1438 | return d->extra.isAllocated() ? d->extra->validator : nullptr; |
1439 | } |
1440 | |
1441 | void QQuickComboBox::setValidator(QValidator *validator) |
1442 | { |
1443 | Q_D(QQuickComboBox); |
1444 | if (validator == QQuickComboBox::validator()) |
1445 | return; |
1446 | |
1447 | d->extra.value().validator = validator; |
1448 | #if QT_CONFIG(validator) |
1449 | if (validator) |
1450 | validator->setLocale(d->locale); |
1451 | #endif |
1452 | emit validatorChanged(); |
1453 | } |
1454 | |
1455 | /*! |
1456 | \since QtQuick.Controls 2.2 (Qt 5.9) |
1457 | \qmlproperty flags QtQuick.Controls::ComboBox::inputMethodHints |
1458 | |
1459 | Provides hints to the input method about the expected content of the combo box and how it |
1460 | should operate. |
1461 | |
1462 | The default value is \c Qt.ImhNoPredictiveText. |
1463 | |
1464 | \include inputmethodhints.qdocinc |
1465 | */ |
1466 | Qt::InputMethodHints QQuickComboBox::inputMethodHints() const |
1467 | { |
1468 | Q_D(const QQuickComboBox); |
1469 | return d->extra.isAllocated() ? d->extra->inputMethodHints : Qt::ImhNoPredictiveText; |
1470 | } |
1471 | |
1472 | void QQuickComboBox::setInputMethodHints(Qt::InputMethodHints hints) |
1473 | { |
1474 | Q_D(QQuickComboBox); |
1475 | d->setInputMethodHints(hints); |
1476 | } |
1477 | |
1478 | /*! |
1479 | \since QtQuick.Controls 2.2 (Qt 5.9) |
1480 | \qmlproperty bool QtQuick.Controls::ComboBox::inputMethodComposing |
1481 | \readonly |
1482 | |
1483 | This property holds whether an editable combo box has partial text input from an input method. |
1484 | |
1485 | While it is composing, an input method may rely on mouse or key events from the combo box to |
1486 | edit or commit the partial text. This property can be used to determine when to disable event |
1487 | handlers that may interfere with the correct operation of an input method. |
1488 | */ |
1489 | bool QQuickComboBox::isInputMethodComposing() const |
1490 | { |
1491 | Q_D(const QQuickComboBox); |
1492 | return d->contentItem && d->contentItem->property(name: "inputMethodComposing" ).toBool(); |
1493 | } |
1494 | |
1495 | /*! |
1496 | \since QtQuick.Controls 2.2 (Qt 5.9) |
1497 | \qmlproperty bool QtQuick.Controls::ComboBox::acceptableInput |
1498 | \readonly |
1499 | |
1500 | This property holds whether the combo box contains acceptable text in the editable text field. |
1501 | |
1502 | If a validator has been set, the value is \c true only if the current text is acceptable |
1503 | to the validator as a final string (not as an intermediate string). |
1504 | |
1505 | \sa validator, accepted |
1506 | */ |
1507 | bool QQuickComboBox::hasAcceptableInput() const |
1508 | { |
1509 | Q_D(const QQuickComboBox); |
1510 | return d->m_acceptableInput; |
1511 | } |
1512 | |
1513 | /*! |
1514 | \since QtQuick.Controls 2.5 (Qt 5.12) |
1515 | \qmlproperty real QtQuick.Controls::ComboBox::implicitIndicatorWidth |
1516 | \readonly |
1517 | |
1518 | This property holds the implicit indicator width. |
1519 | |
1520 | The value is equal to \c {indicator ? indicator.implicitWidth : 0}. |
1521 | |
1522 | This is typically used, together with \l {Control::}{implicitContentWidth} and |
1523 | \l {Control::}{implicitBackgroundWidth}, to calculate the \l {Item::}{implicitWidth}. |
1524 | |
1525 | \sa implicitIndicatorHeight |
1526 | */ |
1527 | qreal QQuickComboBox::implicitIndicatorWidth() const |
1528 | { |
1529 | Q_D(const QQuickComboBox); |
1530 | if (!d->indicator) |
1531 | return 0; |
1532 | return d->indicator->implicitWidth(); |
1533 | } |
1534 | |
1535 | /*! |
1536 | \since QtQuick.Controls 2.5 (Qt 5.12) |
1537 | \qmlproperty real QtQuick.Controls::ComboBox::implicitIndicatorHeight |
1538 | \readonly |
1539 | |
1540 | This property holds the implicit indicator height. |
1541 | |
1542 | The value is equal to \c {indicator ? indicator.implicitHeight : 0}. |
1543 | |
1544 | This is typically used, together with \l {Control::}{implicitContentHeight} and |
1545 | \l {Control::}{implicitBackgroundHeight}, to calculate the \l {Item::}{implicitHeight}. |
1546 | |
1547 | \sa implicitIndicatorWidth |
1548 | */ |
1549 | qreal QQuickComboBox::implicitIndicatorHeight() const |
1550 | { |
1551 | Q_D(const QQuickComboBox); |
1552 | if (!d->indicator) |
1553 | return 0; |
1554 | return d->indicator->implicitHeight(); |
1555 | } |
1556 | |
1557 | /*! |
1558 | \readonly |
1559 | \since QtQuick.Controls 2.14 (Qt 5.14) |
1560 | \qmlproperty string QtQuick.Controls::ComboBox::currentValue |
1561 | |
1562 | This property holds the value of the current item in the combo box. |
1563 | |
1564 | For an example of how to use this property, see \l {ComboBox Model Roles}. |
1565 | |
1566 | \sa currentIndex, currentText, valueRole |
1567 | */ |
1568 | QVariant QQuickComboBox::currentValue() const |
1569 | { |
1570 | Q_D(const QQuickComboBox); |
1571 | return d->currentValue; |
1572 | } |
1573 | |
1574 | QVariant QQuickComboBox::valueAt(int index) const |
1575 | { |
1576 | Q_D(const QQuickComboBox); |
1577 | if (!d->isValidIndex(index)) |
1578 | return QVariant(); |
1579 | |
1580 | const QString effectiveValueRole = d->valueRole.isEmpty() ? QStringLiteral("modelData" ) : d->valueRole; |
1581 | return d->delegateModel->variantValue(index, effectiveValueRole); |
1582 | } |
1583 | |
1584 | /*! |
1585 | \since QtQuick.Controls 2.14 (Qt 5.14) |
1586 | \qmlmethod int QtQuick.Controls::ComboBox::indexOfValue(object value) |
1587 | |
1588 | Returns the index of the specified \a value, or \c -1 if no match is found. |
1589 | |
1590 | For an example of how to use this method, see \l {ComboBox Model Roles}. |
1591 | |
1592 | \sa find(), currentValue, currentIndex, valueRole |
1593 | */ |
1594 | int QQuickComboBox::indexOfValue(const QVariant &value) const |
1595 | { |
1596 | for (int i = 0; i < count(); ++i) { |
1597 | const QVariant ourValue = valueAt(index: i); |
1598 | if (value == ourValue) |
1599 | return i; |
1600 | } |
1601 | return -1; |
1602 | } |
1603 | |
1604 | /*! |
1605 | \since QtQuick.Controls 2.15 (Qt 5.15) |
1606 | \qmlproperty bool QtQuick.Controls::ComboBox::selectTextByMouse |
1607 | |
1608 | This property holds whether the text field for an editable ComboBox |
1609 | can be selected with the mouse. |
1610 | |
1611 | The default value is \c false. |
1612 | */ |
1613 | bool QQuickComboBox::selectTextByMouse() const |
1614 | { |
1615 | Q_D(const QQuickComboBox); |
1616 | return d->extra.isAllocated() ? d->extra->selectTextByMouse : false; |
1617 | } |
1618 | |
1619 | void QQuickComboBox::setSelectTextByMouse(bool canSelect) |
1620 | { |
1621 | Q_D(QQuickComboBox); |
1622 | if (canSelect == selectTextByMouse()) |
1623 | return; |
1624 | |
1625 | d->extra.value().selectTextByMouse = canSelect; |
1626 | emit selectTextByMouseChanged(); |
1627 | } |
1628 | /*! |
1629 | \qmlmethod string QtQuick.Controls::ComboBox::textAt(int index) |
1630 | |
1631 | Returns the text for the specified \a index, or an empty string |
1632 | if the index is out of bounds. |
1633 | |
1634 | \sa textRole |
1635 | */ |
1636 | QString QQuickComboBox::textAt(int index) const |
1637 | { |
1638 | Q_D(const QQuickComboBox); |
1639 | if (!d->isValidIndex(index)) |
1640 | return QString(); |
1641 | |
1642 | const QString effectiveTextRole = d->textRole.isEmpty() ? QStringLiteral("modelData" ) : d->textRole; |
1643 | return d->delegateModel->stringValue(index, role: effectiveTextRole); |
1644 | } |
1645 | |
1646 | /*! |
1647 | \qmlmethod int QtQuick.Controls::ComboBox::find(string text, enumeration flags) |
1648 | |
1649 | Returns the index of the specified \a text, or \c -1 if no match is found. |
1650 | |
1651 | The way the search is performed is defined by the specified match \a flags. By default, |
1652 | combo box performs case sensitive exact matching (\c Qt.MatchExactly). All other match |
1653 | types are case-insensitive unless the \c Qt.MatchCaseSensitive flag is also specified. |
1654 | |
1655 | \value Qt.MatchExactly The search term matches exactly (default). |
1656 | \value Qt.MatchRegExp The search term matches as a regular expression. |
1657 | \value Qt.MatchWildcard The search term matches using wildcards. |
1658 | \value Qt.MatchFixedString The search term matches as a fixed string. |
1659 | \value Qt.MatchStartsWith The search term matches the start of the item. |
1660 | \value Qt.MatchEndsWidth The search term matches the end of the item. |
1661 | \value Qt.MatchContains The search term is contained in the item. |
1662 | \value Qt.MatchCaseSensitive The search is case sensitive. |
1663 | |
1664 | \sa textRole |
1665 | */ |
1666 | int QQuickComboBox::find(const QString &text, Qt::MatchFlags flags) const |
1667 | { |
1668 | Q_D(const QQuickComboBox); |
1669 | return d->match(start: 0, text, flags); |
1670 | } |
1671 | |
1672 | /*! |
1673 | \qmlmethod void QtQuick.Controls::ComboBox::incrementCurrentIndex() |
1674 | |
1675 | Increments the current index of the combo box, or the highlighted |
1676 | index if the popup list is visible. |
1677 | |
1678 | \sa currentIndex, highlightedIndex |
1679 | */ |
1680 | void QQuickComboBox::incrementCurrentIndex() |
1681 | { |
1682 | Q_D(QQuickComboBox); |
1683 | d->incrementCurrentIndex(); |
1684 | } |
1685 | |
1686 | /*! |
1687 | \qmlmethod void QtQuick.Controls::ComboBox::decrementCurrentIndex() |
1688 | |
1689 | Decrements the current index of the combo box, or the highlighted |
1690 | index if the popup list is visible. |
1691 | |
1692 | \sa currentIndex, highlightedIndex |
1693 | */ |
1694 | void QQuickComboBox::decrementCurrentIndex() |
1695 | { |
1696 | Q_D(QQuickComboBox); |
1697 | d->decrementCurrentIndex(); |
1698 | } |
1699 | |
1700 | /*! |
1701 | \since QtQuick.Controls 2.2 (Qt 5.9) |
1702 | \qmlmethod void QtQuick.Controls::ComboBox::selectAll() |
1703 | |
1704 | Selects all the text in the editable text field of the combo box. |
1705 | |
1706 | \sa editText |
1707 | */ |
1708 | void QQuickComboBox::selectAll() |
1709 | { |
1710 | Q_D(QQuickComboBox); |
1711 | QQuickTextInput *input = qobject_cast<QQuickTextInput *>(object: d->contentItem); |
1712 | if (!input) |
1713 | return; |
1714 | input->selectAll(); |
1715 | } |
1716 | |
1717 | bool QQuickComboBox::eventFilter(QObject *object, QEvent *event) |
1718 | { |
1719 | Q_D(QQuickComboBox); |
1720 | switch (event->type()) { |
1721 | case QEvent::MouseButtonRelease: |
1722 | if (d->isPopupVisible()) |
1723 | d->hidePopup(accept: false); |
1724 | break; |
1725 | case QEvent::KeyPress: { |
1726 | QKeyEvent *ke = static_cast<QKeyEvent *>(event); |
1727 | if (d->filterKeyEvent(ke, post: false)) |
1728 | return true; |
1729 | event->accept(); |
1730 | if (d->extra.isAllocated()) |
1731 | d->extra->allowComplete = ke->key() != Qt::Key_Backspace && ke->key() != Qt::Key_Delete; |
1732 | break; |
1733 | } |
1734 | case QEvent::FocusOut: |
1735 | if (qGuiApp->focusObject() != this && (!d->popup || !d->popup->hasActiveFocus())) { |
1736 | // Only close the popup if focus was transferred somewhere else |
1737 | // than to the popup or the popup button (which normally means that |
1738 | // the user clicked on the popup button to open it, not close it). |
1739 | d->hidePopup(accept: false); |
1740 | setPressed(false); |
1741 | |
1742 | // The focus left the text field, so if the edit text matches an item in the model, |
1743 | // change our currentIndex to that. This matches widgets' behavior. |
1744 | const int indexForEditText = find(text: d->extra.value().editText, flags: Qt::MatchFixedString); |
1745 | if (indexForEditText > -1) |
1746 | setCurrentIndex(indexForEditText); |
1747 | } |
1748 | break; |
1749 | #if QT_CONFIG(im) |
1750 | case QEvent::InputMethod: |
1751 | if (d->extra.isAllocated()) |
1752 | d->extra->allowComplete = !static_cast<QInputMethodEvent*>(event)->commitString().isEmpty(); |
1753 | break; |
1754 | #endif |
1755 | default: |
1756 | break; |
1757 | } |
1758 | return QQuickControl::eventFilter(watched: object, event); |
1759 | } |
1760 | |
1761 | void QQuickComboBox::focusInEvent(QFocusEvent *event) |
1762 | { |
1763 | Q_D(QQuickComboBox); |
1764 | QQuickControl::focusInEvent(event); |
1765 | // Setting focus on TextField should not be done when drop down indicator was clicked |
1766 | // That is why, if focus is not set with key reason, it should not be passed to textEdit by default. |
1767 | // Focus on Edit Text should be set only intentionally by user. |
1768 | if ((event->reason() == Qt::TabFocusReason || event->reason() == Qt::BacktabFocusReason || |
1769 | event->reason() == Qt::ShortcutFocusReason) && d->contentItem && isEditable()) |
1770 | d->contentItem->forceActiveFocus(reason: event->reason()); |
1771 | } |
1772 | |
1773 | void QQuickComboBox::focusOutEvent(QFocusEvent *event) |
1774 | { |
1775 | Q_D(QQuickComboBox); |
1776 | QQuickControl::focusOutEvent(event); |
1777 | |
1778 | if (qGuiApp->focusObject() != d->contentItem && (!d->popup || !d->popup->hasActiveFocus())) { |
1779 | // Only close the popup if focus was transferred |
1780 | // somewhere else than to the popup or the inner line edit (which is |
1781 | // normally done from QQuickComboBox::focusInEvent). |
1782 | d->hidePopup(accept: false); |
1783 | setPressed(false); |
1784 | } |
1785 | } |
1786 | |
1787 | #if QT_CONFIG(im) |
1788 | void QQuickComboBox::inputMethodEvent(QInputMethodEvent *event) |
1789 | { |
1790 | Q_D(QQuickComboBox); |
1791 | QQuickControl::inputMethodEvent(event); |
1792 | if (!isEditable() && !event->commitString().isEmpty()) |
1793 | d->keySearch(text: event->commitString()); |
1794 | else |
1795 | event->ignore(); |
1796 | } |
1797 | #endif |
1798 | |
1799 | void QQuickComboBox::keyPressEvent(QKeyEvent *event) |
1800 | { |
1801 | Q_D(QQuickComboBox); |
1802 | QQuickControl::keyPressEvent(event); |
1803 | |
1804 | switch (event->key()) { |
1805 | case Qt::Key_Escape: |
1806 | case Qt::Key_Back: |
1807 | if (d->isPopupVisible()) |
1808 | event->accept(); |
1809 | break; |
1810 | case Qt::Key_Space: |
1811 | if (!event->isAutoRepeat()) |
1812 | setPressed(true); |
1813 | event->accept(); |
1814 | break; |
1815 | case Qt::Key_Enter: |
1816 | case Qt::Key_Return: |
1817 | if (d->isPopupVisible()) |
1818 | setPressed(true); |
1819 | event->accept(); |
1820 | break; |
1821 | case Qt::Key_Up: |
1822 | d->keyNavigating = true; |
1823 | d->decrementCurrentIndex(); |
1824 | event->accept(); |
1825 | break; |
1826 | case Qt::Key_Down: |
1827 | d->keyNavigating = true; |
1828 | d->incrementCurrentIndex(); |
1829 | event->accept(); |
1830 | break; |
1831 | case Qt::Key_Home: |
1832 | d->keyNavigating = true; |
1833 | if (d->isPopupVisible()) |
1834 | d->setHighlightedIndex(index: 0, highlight: Highlight); |
1835 | else |
1836 | d->setCurrentIndex(index: 0, activate: Activate); |
1837 | event->accept(); |
1838 | break; |
1839 | case Qt::Key_End: |
1840 | d->keyNavigating = true; |
1841 | if (d->isPopupVisible()) |
1842 | d->setHighlightedIndex(index: count() - 1, highlight: Highlight); |
1843 | else |
1844 | d->setCurrentIndex(index: count() - 1, activate: Activate); |
1845 | event->accept(); |
1846 | break; |
1847 | default: |
1848 | if (!isEditable() && !event->text().isEmpty()) |
1849 | d->keySearch(text: event->text()); |
1850 | else |
1851 | event->ignore(); |
1852 | break; |
1853 | } |
1854 | } |
1855 | |
1856 | void QQuickComboBox::keyReleaseEvent(QKeyEvent *event) |
1857 | { |
1858 | Q_D(QQuickComboBox); |
1859 | QQuickControl::keyReleaseEvent(event); |
1860 | d->keyNavigating = false; |
1861 | if (event->isAutoRepeat()) |
1862 | return; |
1863 | |
1864 | switch (event->key()) { |
1865 | case Qt::Key_Space: |
1866 | if (!isEditable()) |
1867 | d->togglePopup(accept: true); |
1868 | setPressed(false); |
1869 | event->accept(); |
1870 | break; |
1871 | case Qt::Key_Enter: |
1872 | case Qt::Key_Return: |
1873 | if (!isEditable() || d->isPopupVisible()) |
1874 | d->hidePopup(accept: d->isPopupVisible()); |
1875 | setPressed(false); |
1876 | event->accept(); |
1877 | break; |
1878 | case Qt::Key_Escape: |
1879 | case Qt::Key_Back: |
1880 | if (d->isPopupVisible()) { |
1881 | d->hidePopup(accept: false); |
1882 | setPressed(false); |
1883 | event->accept(); |
1884 | } |
1885 | break; |
1886 | default: |
1887 | break; |
1888 | } |
1889 | } |
1890 | |
1891 | #if QT_CONFIG(wheelevent) |
1892 | void QQuickComboBox::wheelEvent(QWheelEvent *event) |
1893 | { |
1894 | Q_D(QQuickComboBox); |
1895 | QQuickControl::wheelEvent(event); |
1896 | if (d->wheelEnabled && !d->isPopupVisible()) { |
1897 | if (event->angleDelta().y() > 0) |
1898 | d->decrementCurrentIndex(); |
1899 | else |
1900 | d->incrementCurrentIndex(); |
1901 | } |
1902 | } |
1903 | #endif |
1904 | |
1905 | bool QQuickComboBox::event(QEvent *e) |
1906 | { |
1907 | Q_D(QQuickComboBox); |
1908 | if (e->type() == QEvent::LanguageChange) |
1909 | d->updateCurrentTextAndValue(); |
1910 | return QQuickControl::event(e); |
1911 | } |
1912 | |
1913 | void QQuickComboBox::componentComplete() |
1914 | { |
1915 | Q_D(QQuickComboBox); |
1916 | d->executeIndicator(complete: true); |
1917 | QQuickControl::componentComplete(); |
1918 | if (d->popup) |
1919 | d->executePopup(complete: true); |
1920 | |
1921 | if (d->delegateModel && d->ownModel) |
1922 | static_cast<QQmlDelegateModel *>(d->delegateModel)->componentComplete(); |
1923 | |
1924 | if (count() > 0) { |
1925 | if (!d->hasCurrentIndex && d->currentIndex == -1) |
1926 | setCurrentIndex(0); |
1927 | else |
1928 | d->updateCurrentTextAndValue(); |
1929 | } |
1930 | } |
1931 | |
1932 | void QQuickComboBox::itemChange(QQuickItem::ItemChange change, const QQuickItem::ItemChangeData &value) |
1933 | { |
1934 | Q_D(QQuickComboBox); |
1935 | QQuickControl::itemChange(change, value); |
1936 | if (change == ItemVisibleHasChanged && !value.boolValue) { |
1937 | d->hidePopup(accept: false); |
1938 | setPressed(false); |
1939 | } |
1940 | } |
1941 | |
1942 | void QQuickComboBox::contentItemChange(QQuickItem *newItem, QQuickItem *oldItem) |
1943 | { |
1944 | Q_D(QQuickComboBox); |
1945 | if (oldItem) { |
1946 | oldItem->removeEventFilter(obj: this); |
1947 | if (QQuickTextInput *oldInput = qobject_cast<QQuickTextInput *>(object: oldItem)) { |
1948 | QObjectPrivate::disconnect(sender: oldInput, signal: &QQuickTextInput::accepted, receiverPrivate: d, slot: &QQuickComboBoxPrivate::acceptInput); |
1949 | QObjectPrivate::disconnect(sender: oldInput, signal: &QQuickTextInput::textChanged, receiverPrivate: d, slot: &QQuickComboBoxPrivate::updateEditText); |
1950 | disconnect(sender: oldInput, signal: &QQuickTextInput::inputMethodComposingChanged, receiver: this, slot: &QQuickComboBox::inputMethodComposingChanged); |
1951 | QObjectPrivate::disconnect(sender: oldInput, signal: &QQuickTextInput::acceptableInputChanged, receiverPrivate: d, slot: &QQuickComboBoxPrivate::updateAcceptableInput); |
1952 | } |
1953 | } |
1954 | if (newItem && isEditable()) { |
1955 | newItem->installEventFilter(filterObj: this); |
1956 | if (QQuickTextInput *newInput = qobject_cast<QQuickTextInput *>(object: newItem)) { |
1957 | QObjectPrivate::connect(sender: newInput, signal: &QQuickTextInput::accepted, receiverPrivate: d, slot: &QQuickComboBoxPrivate::acceptInput); |
1958 | QObjectPrivate::connect(sender: newInput, signal: &QQuickTextInput::textChanged, receiverPrivate: d, slot: &QQuickComboBoxPrivate::updateEditText); |
1959 | connect(sender: newInput, signal: &QQuickTextInput::inputMethodComposingChanged, receiver: this, slot: &QQuickComboBox::inputMethodComposingChanged); |
1960 | QObjectPrivate::connect(sender: newInput, signal: &QQuickTextInput::acceptableInputChanged, receiverPrivate: d, slot: &QQuickComboBoxPrivate::updateAcceptableInput); |
1961 | } |
1962 | #if QT_CONFIG(cursor) |
1963 | newItem->setCursor(Qt::IBeamCursor); |
1964 | #endif |
1965 | } |
1966 | |
1967 | d->updateAcceptableInput(); |
1968 | } |
1969 | |
1970 | void QQuickComboBox::localeChange(const QLocale &newLocale, const QLocale &oldLocale) |
1971 | { |
1972 | QQuickControl::localeChange(newLocale, oldLocale); |
1973 | #if QT_CONFIG(validator) |
1974 | if (QValidator *v = validator()) |
1975 | v->setLocale(newLocale); |
1976 | #endif |
1977 | } |
1978 | |
1979 | QFont QQuickComboBox::defaultFont() const |
1980 | { |
1981 | return QQuickTheme::font(scope: QQuickTheme::ComboBox); |
1982 | } |
1983 | |
1984 | QPalette QQuickComboBox::defaultPalette() const |
1985 | { |
1986 | return QQuickTheme::palette(scope: QQuickTheme::ComboBox); |
1987 | } |
1988 | |
1989 | #if QT_CONFIG(accessibility) |
1990 | QAccessible::Role QQuickComboBox::accessibleRole() const |
1991 | { |
1992 | return QAccessible::ComboBox; |
1993 | } |
1994 | |
1995 | void QQuickComboBox::accessibilityActiveChanged(bool active) |
1996 | { |
1997 | Q_D(QQuickComboBox); |
1998 | QQuickControl::accessibilityActiveChanged(active); |
1999 | |
2000 | if (active) { |
2001 | maybeSetAccessibleName(name: d->hasDisplayText ? d->displayText : d->currentText); |
2002 | setAccessibleProperty(propertyName: "editable" , value: isEditable()); |
2003 | } |
2004 | } |
2005 | #endif // |
2006 | |
2007 | QT_END_NAMESPACE |
2008 | |