FileDialog: new features in DefaultFileDialog.qml

Use a ComboBox for the filters.  Add a sidebar showing shortcuts for the
common paths and drives that the user will most likely need, and an
editable list of favorite paths.

[ChangeLog][QtQuickDialogs][FileDialog] The FileDialog fallback QML
implementation now uses QtQuick.Controls, and has added features
including a Combobox for file extension filters, and a sidebar with
common paths, drives/volumes and favorite paths.

Change-Id: I228ebdadcf338917db81a2b3d03d3c0b09584e7d
Reviewed-by: Liang Qi <liang.qi@digia.com>

1 files changed, 41 insertions, 0 deletions

diff --git a/src/dialogs/qquickfiledialog.cpp b/src/dialogs/qquickfiledialog.cpp
index f408713e..3891308d 100644
--- a/src/dialogs/qquickfiledialog.cpp
+++ b/src/dialogs/qquickfiledialog.cpp
@@ -42,9 +42,12 @@
 #include "qquickfiledialog_p.h"
 #include <QQuickItem>
 #include <private/qguiapplication_p.h>
+#include <private/qv4object_p.h>
 
 QT_BEGIN_NAMESPACE
 
+using namespace QV4;
+
 /*!
     \qmltype AbstractFileDialog
     \instantiates QQuickFileDialog
@@ -108,6 +111,44 @@ QList<QUrl> QQuickFileDialog::fileUrls() const
     return m_selections;
 }
 
+
+void QQuickFileDialog::addShortcut(int &i, const QString &name, const QString &path)
+{
+    QJSEngine *engine = qmlEngine(this);
+    QJSValue o = engine->newObject();
+    o.setProperty("name", name);
+    o.setProperty("url", QUrl::fromLocalFile(path).toString());
+    m_shortcuts.setProperty(i++, o);
+}
+
+void QQuickFileDialog::addIfReadable(int &i, const QString &name, QStandardPaths::StandardLocation loc)
+{
+    QStringList paths = QStandardPaths::standardLocations(loc);
+    if (!paths.isEmpty() && QDir(paths.first()).isReadable())
+        addShortcut(i, name, paths.first());
+}
+
+QJSValue QQuickFileDialog::shortcuts()
+{
+    if (m_shortcuts.isUndefined()) {
+        QJSEngine *engine = qmlEngine(this);
+        m_shortcuts = engine->newArray();
+        int i = 0;
+
+        addIfReadable(i, "Desktop", QStandardPaths::DesktopLocation);
+        addIfReadable(i, "Documents", QStandardPaths::DocumentsLocation);
+        addIfReadable(i, "Music", QStandardPaths::MusicLocation);
+        addIfReadable(i, "Movies", QStandardPaths::MoviesLocation);
+        addIfReadable(i, "Pictures", QStandardPaths::PicturesLocation);
+        addIfReadable(i, "Home", QStandardPaths::HomeLocation);
+
+        QFileInfoList drives = QDir::drives();
+        foreach (QFileInfo fi, drives)
+            addShortcut(i, fi.absoluteFilePath(), fi.absoluteFilePath());
+    }
+    return m_shortcuts;
+}
+
 /*!
     \qmlproperty bool AbstractFileDialog::visible