| 1 | // Copyright (C) 2024 The Qt Company Ltd. |
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| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
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| 3 | |
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| 4 | #include "qquickfluentwinui3focusframe_p.h" |
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| 5 | |
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| 6 | #include <QtCore/qmetaobject.h> |
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| 7 | |
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| 8 | #include <QtGui/qguiapplication.h> |
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| 9 | |
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| 10 | #include <QtQml/qqmlengine.h> |
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| 11 | #include <QtQml/qqmlcontext.h> |
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| 12 | #include <QtQml/qqmlcomponent.h> |
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| 13 | |
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| 14 | |
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| 15 | QT_BEGIN_NAMESPACE |
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| 16 | |
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| 17 | QScopedPointer<QQuickItem> QQuickFluentWinUI3FocusFrame::m_focusFrame; |
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| 18 | |
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| 19 | QQuickFluentWinUI3FocusFrame::QQuickFluentWinUI3FocusFrame() |
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| 20 | { |
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| 21 | connect(qGuiApp, signal: &QGuiApplication::focusObjectChanged, context: this, slot: [this](QObject *focusObject){ |
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| 22 | if (auto control = qobject_cast<QQuickControl *>(object: focusObject)) { |
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| 23 | if (control->focusReason() == Qt::FocusReason::TabFocusReason |
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| 24 | || control->focusReason() == Qt::FocusReason::BacktabFocusReason) { |
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| 25 | moveToItem(item: control); |
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| 26 | } |
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| 27 | } else { |
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| 28 | m_focusFrame.reset(); |
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| 29 | } |
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| 30 | }); |
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| 31 | } |
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| 32 | |
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| 33 | QQuickItem *QQuickFluentWinUI3FocusFrame::createFocusFrame(QQmlContext *context) |
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| 34 | { |
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| 35 | QQmlComponent component( |
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| 36 | context->engine(), |
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| 37 | QUrl(QStringLiteral( |
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| 38 | "qrc:/qt-project.org/imports/QtQuick/Controls/FluentWinUI3/FocusFrame.qml" ))); |
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| 39 | auto frame = qobject_cast<QQuickItem *>(o: component.create()); |
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| 40 | if (!frame) |
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| 41 | return nullptr; |
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| 42 | return frame; |
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| 43 | } |
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| 44 | |
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| 45 | void QQuickFluentWinUI3FocusFrame::moveToItem(QQuickControl *item) |
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| 46 | { |
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| 47 | if (!m_focusFrame) { |
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| 48 | const auto context = QQmlEngine::contextForObject(item); |
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| 49 | // In certain cases like QQuickWebEngineView, the item |
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| 50 | // gets focus even though it has no QQmlEngine associated with its context. |
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| 51 | // We need the engine for creating the focus frame component. |
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| 52 | if (!context || !context->engine()) |
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| 53 | return; |
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| 54 | m_focusFrame.reset(other: createFocusFrame(context)); |
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| 55 | if (!m_focusFrame) { |
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| 56 | qWarning() << "Failed to create FocusFrame" ; |
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| 57 | return; |
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| 58 | } |
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| 59 | } |
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| 60 | |
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| 61 | const auto target = getFocusTarget(focusItem: item); |
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| 62 | QMetaObject::invokeMethod(obj: m_focusFrame.data(), member: "moveToItem" , |
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| 63 | Q_ARG(QVariant, QVariant::fromValue(target))); |
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| 64 | } |
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| 65 | |
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| 66 | QQuickControl *QQuickFluentWinUI3FocusFrame::getFocusTarget(QQuickControl *focusItem) const |
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| 67 | { |
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| 68 | const auto parentItem = focusItem->parentItem(); |
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| 69 | if (!parentItem) |
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| 70 | return nullptr; |
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| 71 | |
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| 72 | // The control that gets active focus can be a child of the control (e.g |
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| 73 | // editable ComboBox). In that case, resolve the actual control first. |
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| 74 | const auto proxy = focusItem->property(name: "__focusFrameControl" ).value<QQuickControl *>(); |
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| 75 | const auto control = proxy ? proxy : focusItem; |
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| 76 | auto target = control->property(name: "__focusFrameTarget" ).value<QQuickControl *>(); |
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| 77 | |
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| 78 | return target; |
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| 79 | } |
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| 80 | |
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| 81 | QT_END_NAMESPACE |
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| 82 | |
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