adding QtQuick.Dialogs, with FileDialog implementation

This will obsolete the QFileDialogItem in desktop components and be
available to all QtQuick applications.  The QML FileDialog type is
dynamically defined in the plugin by detecting which implementation
will work on the current platform.

Change-Id: I073c7a84bff6c02cf592dc46822a5a4b9c9bcaea
Reviewed-by: Jens Bache-Wiig <jens.bache-wiig@digia.com>

1 files changed, 233 insertions, 0 deletions

diff --git a/src/imports/dialogs/qquickabstractfiledialog.cpp b/src/imports/dialogs/qquickabstractfiledialog.cpp
new file mode 100644
index 0000000000..905cb5d030
--- /dev/null
+++ b/src/imports/dialogs/qquickabstractfiledialog.cpp
@@ -0,0 +1,233 @@
+/****************************************************************************
+**
+** 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 "qquickabstractfiledialog_p.h"
+#include "qquickitem.h"
+
+#include <private/qguiapplication_p.h>
+#include <QWindow>
+#include <QQuickWindow>
+
+QT_BEGIN_NAMESPACE
+
+QQuickAbstractFileDialog::QQuickAbstractFileDialog(QObject *parent)
+    : QObject(parent)
+    , m_dlgHelper(0)
+    , m_parentWindow(0)
+    , m_options(QSharedPointer<QFileDialogOptions>(new QFileDialogOptions()))
+    , m_visible(false)
+    , m_modality(Qt::WindowModal)
+    , m_selectExisting(true)
+    , m_selectMultiple(false)
+    , m_selectFolder(false)
+{
+}
+
+QQuickAbstractFileDialog::~QQuickAbstractFileDialog()
+{
+}
+
+void QQuickAbstractFileDialog::setVisible(bool v)
+{
+    if (m_visible == v) return;
+    m_visible = v;
+    if (helper()) {
+        if (v) {
+            helper()->setOptions(m_options);
+            helper()->setFilter();
+            m_visible = helper()->show(Qt::Dialog, m_modality, parentWindow());
+            emit filterSelected();
+        } else {
+            helper()->hide();
+        }
+    }
+
+    emit visibilityChanged();
+}
+
+void QQuickAbstractFileDialog::setModality(Qt::WindowModality m)
+{
+    if (m_modality == m) return;
+    m_modality = m;
+    emit modalityChanged();
+}
+
+void QQuickAbstractFileDialog::setTitle(QString t)
+{
+    if (m_options->windowTitle() == t) return;
+    m_options->setWindowTitle(t);
+    emit titleChanged();
+}
+
+void QQuickAbstractFileDialog::setSelectExisting(bool selectExisting)
+{
+    if (selectExisting == m_selectExisting) return;
+    m_selectExisting = selectExisting;
+    updateModes();
+}
+
+void QQuickAbstractFileDialog::setSelectMultiple(bool selectMultiple)
+{
+    if (selectMultiple == m_selectMultiple) return;
+    m_selectMultiple = selectMultiple;
+    updateModes();
+}
+
+void QQuickAbstractFileDialog::setSelectFolder(bool selectFolder)
+{
+    if (selectFolder == m_selectFolder) return;
+    m_selectFolder = selectFolder;
+    updateModes();
+}
+
+QString QQuickAbstractFileDialog::folder()
+{
+    if (m_dlgHelper && !m_dlgHelper->directory().isEmpty())
+        return m_dlgHelper->directory();
+    return m_options->initialDirectory();
+}
+
+void QQuickAbstractFileDialog::setFolder(QString f)
+{
+    if (m_dlgHelper)
+        m_dlgHelper->setDirectory(f);
+    m_options->setInitialDirectory(f);
+    emit folderChanged();
+}
+
+void QQuickAbstractFileDialog::setNameFilters(const QStringList &f)
+{
+    m_options->setNameFilters(f);
+    if (f.isEmpty())
+        selectNameFilter(QString());
+    else if (!f.contains(selectedNameFilter()))
+        selectNameFilter(f.first());
+    emit nameFiltersChanged();
+}
+
+QString QQuickAbstractFileDialog::selectedNameFilter()
+{
+    QString ret;
+    if (m_dlgHelper)
+        ret = m_dlgHelper->selectedNameFilter();
+    if (ret.isEmpty())
+        return m_options->initiallySelectedNameFilter();
+    return ret;
+}
+
+void QQuickAbstractFileDialog::selectNameFilter(QString f)
+{
+    // This should work whether the dialog is currently being shown already, or ahead of time.
+    m_options->setInitiallySelectedNameFilter(f);
+    if (m_dlgHelper)
+        m_dlgHelper->selectNameFilter(f);
+    emit filterSelected();
+}
+
+QUrl QQuickAbstractFileDialog::fileUrl()
+{
+    QList<QUrl> urls = fileUrls();
+    return (urls.count() == 1) ? urls[0] : QUrl();
+}
+
+QList<QUrl> QQuickAbstractFileDialog::fileUrls()
+{
+    QList<QUrl> ret;
+    if (m_dlgHelper)
+        foreach (QString path, m_dlgHelper->selectedFiles())
+            ret << QUrl::fromLocalFile(path);
+    return ret;
+}
+
+void QQuickAbstractFileDialog::accept()
+{
+    setVisible(false);
+    emit accepted();
+}
+
+void QQuickAbstractFileDialog::reject()
+{
+    setVisible(false);
+    emit rejected();
+}
+
+void QQuickAbstractFileDialog::visibleChanged(bool v)
+{
+    m_visible = v;
+    emit visibilityChanged();
+}
+
+void QQuickAbstractFileDialog::updateModes()
+{
+    // The 4 possible modes are AnyFile, ExistingFile, Directory, ExistingFiles
+    // Assume AnyFile until we find a reason to the contrary
+    QFileDialogOptions::FileMode mode = QFileDialogOptions::AnyFile;
+
+    if (m_selectFolder) {
+        mode = QFileDialogOptions::Directory;
+        m_options->setOption(QFileDialogOptions::ShowDirsOnly);
+        m_selectMultiple = false;
+        m_selectExisting = true;
+        setNameFilters(QStringList());
+    } else if (m_selectExisting) {
+        mode = m_selectMultiple ?
+            QFileDialogOptions::ExistingFiles : QFileDialogOptions::ExistingFile;
+        m_options->setOption(QFileDialogOptions::ShowDirsOnly, false);
+    } else if (m_selectMultiple) {
+        m_selectExisting = true;
+    }
+    if (!m_selectExisting)
+        m_selectMultiple = false;
+    m_options->setFileMode(mode);
+    m_options->setAcceptMode(m_selectExisting ?
+                           QFileDialogOptions::AcceptOpen : QFileDialogOptions::AcceptSave);
+    emit fileModeChanged();
+}
+
+QQuickWindow *QQuickAbstractFileDialog::parentWindow()
+{
+    QQuickItem *parentItem = qobject_cast<QQuickItem *>(parent());
+    if (parentItem)
+        m_parentWindow = parentItem->window();
+    return m_parentWindow;
+}
+
+QT_END_NAMESPACE