1// Copyright (C) 2021 The Qt Company Ltd.
2// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
3
4#include "qquickplatformfolderdialog_p.h"
5
6#include <QtCore/qloggingcategory.h>
7#include <QtGui/qwindow.h>
8#include <QtQml/qqmlcontext.h>
9#include <QtQml/qqmlinfo.h>
10#include <QtQuick/qquickwindow.h>
11#include <QtQuickTemplates2/private/qquickdialog_p.h>
12#include <QtQuickTemplates2/private/qquickpopup_p_p.h>
13#include <QtQuickTemplates2/private/qquickpopupanchors_p.h>
14
15#include "qquickfolderdialogimpl_p.h"
16
17QT_BEGIN_NAMESPACE
18
19Q_LOGGING_CATEGORY(lcQuickPlatformFolderDialog, "qt.quick.dialogs.quickplatformfolderdialog")
20
21/*!
22 \class QQuickPlatformFolderDialog
23 \internal
24
25 An interface that QQuickFolderDialog can use to access the non-native Qt Quick FolderDialog.
26
27 Both this and the native implementations are created in QQuickAbstractDialog::create().
28*/
29QQuickPlatformFolderDialog::QQuickPlatformFolderDialog(QObject *parent)
30{
31 qCDebug(lcQuickPlatformFolderDialog) << "creating non-native Qt Quick FolderDialog with parent" << parent;
32
33 // Set a parent so that we get deleted if we can't be shown for whatever reason.
34 // Our eventual parent should be the window, though.
35 setParent(parent);
36
37 auto qmlContext = ::qmlContext(parent);
38 if (!qmlContext) {
39 qmlWarning(me: parent) << "No QQmlContext for QQuickPlatformFolderDialog; can't create non-native FolderDialog implementation";
40 return;
41 }
42
43 const auto dialogQmlUrl = QUrl(QStringLiteral("qrc:/qt-project.org/imports/QtQuick/Dialogs/quickimpl/qml/FolderDialog.qml"));
44 QQmlComponent folderDialogComponent(qmlContext->engine(), dialogQmlUrl, parent);
45 if (!folderDialogComponent.isReady()) {
46 qmlWarning(me: parent) << "Failed to load non-native FolderDialog implementation:\n" << folderDialogComponent.errorString();
47 return;
48 }
49 m_dialog = qobject_cast<QQuickFolderDialogImpl*>(object: folderDialogComponent.create());
50 if (!m_dialog) {
51 qmlWarning(me: parent) << "Failed to create an instance of the non-native FolderDialog:\n" << folderDialogComponent.errorString();
52 return;
53 }
54 // Give it a parent until it's parented to the window in show().
55 m_dialog->setParent(this);
56
57 connect(sender: m_dialog, signal: &QQuickDialog::accepted, context: this, slot: &QPlatformDialogHelper::accept);
58 connect(sender: m_dialog, signal: &QQuickDialog::rejected, context: this, slot: &QPlatformDialogHelper::reject);
59
60 connect(sender: m_dialog, signal: &QQuickFolderDialogImpl::selectedFolderChanged, context: this, slot: &QQuickPlatformFolderDialog::currentChanged);
61 connect(sender: m_dialog, signal: &QQuickFolderDialogImpl::currentFolderChanged, context: this, slot: &QQuickPlatformFolderDialog::directoryEntered);
62 connect(sender: m_dialog, signal: &QQuickFolderDialogImpl::selectedFolderChanged, context: this, slot: &QQuickPlatformFolderDialog::fileSelected);
63
64 // We would do this in QQuickFolderDialogImpl, but we need to ensure that folderChanged()
65 // is connected to directoryEntered() before setting it to ensure that the QQuickFolderDialog is notified.
66 if (m_dialog->currentFolder().isEmpty())
67 m_dialog->setCurrentFolder(QUrl::fromLocalFile(localfile: QDir().absolutePath()));
68}
69
70bool QQuickPlatformFolderDialog::isValid() const
71{
72 return m_dialog;
73}
74
75bool QQuickPlatformFolderDialog::defaultNameFilterDisables() const
76{
77 return false;
78}
79
80void QQuickPlatformFolderDialog::setDirectory(const QUrl &directory)
81{
82 if (!m_dialog)
83 return;
84
85 m_dialog->setCurrentFolder(directory);
86}
87
88QUrl QQuickPlatformFolderDialog::directory() const
89{
90 if (!m_dialog)
91 return {};
92
93 return m_dialog->currentFolder();
94}
95
96void QQuickPlatformFolderDialog::selectFile(const QUrl &file)
97{
98 if (!m_dialog)
99 return;
100
101 m_dialog->setSelectedFolder(file);
102}
103
104QList<QUrl> QQuickPlatformFolderDialog::selectedFiles() const
105{
106 // FolderDialog doesn't support multiple selected folders.
107 return { m_dialog->selectedFolder() };
108}
109
110void QQuickPlatformFolderDialog::setFilter()
111{
112}
113
114void QQuickPlatformFolderDialog::selectNameFilter(const QString &/*filter*/)
115{
116}
117
118QString QQuickPlatformFolderDialog::selectedNameFilter() const
119{
120 return QStringLiteral("*.*");
121}
122
123void QQuickPlatformFolderDialog::exec()
124{
125 qCWarning(lcQuickPlatformFolderDialog) << "exec() is not supported for the Qt Quick FolderDialog fallback";
126}
127
128bool QQuickPlatformFolderDialog::show(Qt::WindowFlags flags, Qt::WindowModality modality, QWindow *parent)
129{
130 qCDebug(lcQuickPlatformFolderDialog) << "show called with flags" << flags <<
131 "modality" << modality << "parent" << parent;
132 if (!m_dialog)
133 return false;
134
135 if (!parent)
136 return false;
137
138 auto quickWindow = qobject_cast<QQuickWindow*>(object: parent);
139 if (!quickWindow) {
140 qmlInfo(me: this->parent()) << "Parent window (" << parent << ") of non-native dialog is not a QQuickWindow";
141 return false;
142 }
143 m_dialog->setParent(parent);
144 m_dialog->resetParentItem();
145
146 auto popupPrivate = QQuickPopupPrivate::get(popup: m_dialog);
147 popupPrivate->getAnchors()->setCenterIn(m_dialog->parentItem());
148
149 QSharedPointer<QFileDialogOptions> options = QPlatformFileDialogHelper::options();
150 m_dialog->setTitle(options->windowTitle());
151 m_dialog->setOptions(options);
152 m_dialog->setAcceptLabel(options->isLabelExplicitlySet(label: QFileDialogOptions::Accept)
153 ? options->labelText(label: QFileDialogOptions::Accept) : QString());
154 m_dialog->setRejectLabel(options->isLabelExplicitlySet(label: QFileDialogOptions::Reject)
155 ? options->labelText(label: QFileDialogOptions::Reject) : QString());
156
157 m_dialog->open();
158 return true;
159}
160
161void QQuickPlatformFolderDialog::hide()
162{
163 if (!m_dialog)
164 return;
165
166 m_dialog->close();
167}
168
169QQuickFolderDialogImpl *QQuickPlatformFolderDialog::dialog() const
170{
171 return m_dialog;
172}
173
174QT_END_NAMESPACE
175
176#include "moc_qquickplatformfolderdialog_p.cpp"
177

source code of qtdeclarative/src/quickdialogs/quickdialogsquickimpl/qquickplatformfolderdialog.cpp