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Diffstat (limited to 'src/imports/dialogs/qquickfiledialog.cpp')
| -rw-r--r-- | src/imports/dialogs/qquickfiledialog.cpp | 230 |
1 files changed, 230 insertions, 0 deletions
diff --git a/src/imports/dialogs/qquickfiledialog.cpp b/src/imports/dialogs/qquickfiledialog.cpp new file mode 100644 index 0000000000..89b8b4cc5b --- /dev/null +++ b/src/imports/dialogs/qquickfiledialog.cpp @@ -0,0 +1,230 @@ +/**************************************************************************** +** +** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the QtQml module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Digia. For licensing terms and +** conditions see http://qt.digia.com/licensing. For further information +** use the contact form at http://qt.digia.com/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Digia gives you certain additional +** rights. These rights are described in the Digia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qquickfiledialog_p.h" +#include <QQuickItem> +#include <private/qguiapplication_p.h> +#include <qpa/qplatformintegration.h> + +QT_BEGIN_NAMESPACE + +/*! + \qmltype AbstractFileDialog + \instantiates QQuickFileDialog + \inqmlmodule QtQuick.Dialogs 1 + \ingroup qtquick-visual + \brief API wrapper for QML file dialog implementations + \since 5.1 + \internal + + AbstractFileDialog provides only the API for implementing a file dialog. + The implementation (e.g. a Window or Item) can be provided as \l implementation, + which is the default property (the only allowed child element). +*/ + +/*! + \qmlsignal QtQuick::Dialogs::AbstractFileDialog::accepted + + The \a accepted signal is emitted by \l accept(). +*/ + +/*! + \qmlsignal QtQuick::Dialogs::AbstractFileDialog::rejected + + The \a accepted signal is emitted by \l reject(). +*/ + +/*! + \class QQuickFileDialog + \inmodule QtQuick.Dialogs + \internal + + The QQuickFileDialog class is a concrete subclass of \l + QQuickAbstractFileDialog, but it is abstract from the QML perspective + because it needs to enclose a graphical implementation. It exists in order + to provide accessors and helper functions which the QML implementation will + need. + + \since 5.1 +*/ + +/*! + Constructs a file dialog wrapper with parent window \a parent. +*/ +QQuickFileDialog::QQuickFileDialog(QObject *parent) + : QQuickAbstractFileDialog(parent) + , m_implementation(0) + , m_dialogWindow(0) +{ +} + + +/*! + Destroys the file dialog wrapper. +*/ +QQuickFileDialog::~QQuickFileDialog() +{ +} + +QList<QUrl> QQuickFileDialog::fileUrls() +{ + QList<QUrl> ret; + foreach (QString path, m_selections) + ret << QUrl::fromLocalFile(path); + return ret; +} + +/*! + \qmlproperty bool AbstractFileDialog::visible + + This property holds whether the dialog is visible. By default this is false. +*/ +void QQuickFileDialog::setVisible(bool v) +{ + if (m_visible == v) return; + m_visible = v; + // For a pure QML implementation, there is no helper. + // But m_implementation is probably either an Item or a Window at this point. + if (!m_dialogWindow) { + m_dialogWindow = qobject_cast<QWindow *>(m_implementation); + if (!m_dialogWindow) { + QQuickItem *dlgItem = qobject_cast<QQuickItem *>(m_implementation); + if (dlgItem) { + m_dialogWindow = dlgItem->window(); + // An Item-based dialog implementation doesn't come with a window, so + // we have to instantiate one iff the platform allows it. + if (!m_dialogWindow && QGuiApplicationPrivate::platformIntegration()-> + hasCapability(QPlatformIntegration::MultipleWindows)) { + QQuickWindow *win = new QQuickWindow; + m_dialogWindow = win; + dlgItem->setParentItem(win->contentItem()); + m_dialogWindow->setMinimumSize(QSize(dlgItem->width(), dlgItem->height())); + } + + QQuickItem *parentItem = qobject_cast<QQuickItem *>(parent()); + // qDebug() << "item implementation" << dlgItem << "has window" << m_dialogWindow << "and parent" << parentItem; + + // If the platform does not support multiple windows, but the dialog is + // implemented as an Item, then just reparent it and make it visible. + // TODO QTBUG-29818: put it into a fake Item-based window, when we have a reusable self-decorated one. + if (parentItem && !m_dialogWindow) + dlgItem->setParentItem(parentItem); + } + } + if (m_dialogWindow) + connect(m_dialogWindow, SIGNAL(visibleChanged(bool)), this, SLOT(visibleChanged(bool))); + } + if (m_dialogWindow) { + if (v) { + m_dialogWindow->setTransientParent(parentWindow()); + m_dialogWindow->setTitle(title()); + m_dialogWindow->setModality(m_modality); + } + m_dialogWindow->setVisible(v); + } + emit visibilityChanged(); +} + +/*! + \qmlproperty bool AbstractFileDialog::filePaths + + A list of files to be populated as the user chooses. +*/ + +/*! + \brief Clears \l filePaths +*/ +void QQuickFileDialog::clearSelection() +{ + m_selections.clear(); +} + +/*! + \brief Adds one file to \l filePaths + + \l path should be given as an absolute file system path. If it is given as a + file:// URL, it will be converted to a path. Returns true on success, + false if the given path is not valid given the current setting properties. +*/ +bool QQuickFileDialog::addSelection(QString path) +{ + if (path.startsWith("file:")) + path = QUrl(path).toLocalFile(); + QFileInfo info(path); + if (info.exists() && ((info.isDir() && m_selectFolder) || !info.isDir())) { + if (m_selectFolder) + m_selections.append(pathFolder(path).toLocalFile()); + else + m_selections.append(path); + return true; + } + return false; +} + +/*! + \brief get a file's directory as a URL + + If \a path points to a directory, just convert it to a URL. + If \a path points to a file, convert the file's directory to a URL. +*/ +QUrl QQuickFileDialog::pathFolder(const QString &path) +{ + QFileInfo info(path); + if (info.exists() && info.isDir()) + return QUrl::fromLocalFile(path); + return QUrl::fromLocalFile(QFileInfo(path).absolutePath()); +} + +/*! + \qmlproperty QObject AbstractFileDialog::implementation + + The QML object which implements the actual file dialog. Should be either a + \l Window or an \l Item. +*/ +void QQuickFileDialog::setImplementation(QObject *obj) +{ + m_implementation = obj; + if (m_dialogWindow) + disconnect(this, SLOT(visibleChanged(bool))); + m_dialogWindow = 0; +} + +QT_END_NAMESPACE |