FileDialog in QTQuick (QML): Save file under given

问题:

We're building a Qt Quick app, that must be able to save a file under a given name.

In the FileDialog component you can only set a directory. This is not very user-friendly, since you don't want to type in a filename by hand every time you download a file.

So far we tried different things

1. FileDialog from QtQuick.Dialogs: filename cannot be set

2. Native dialog via QPlatformFileDialogHelper (naughty private c++ hack): filename cannot be set on Linux (Gnome)

3. Native dialog via static QFileDialog::getSaveFileName(): in Quick application there is no QWidget available for 'parent'

4. QT dialog via QFileDialog instance: Modality doeas not work, since 'parent' is not set. In Quick application there is no QWidget available for setParent() call

(Using C++ with QT 5.1 and QtQuick 2.1 incl. all desktop components)

回答1:

This blog post covers the whole problem and provides a possible solution: Advanced FileDialog in QML (Save file under given name)

回答2:

I hope this will be still helpful. I found a compromise that at least works for me. I used Qt.labs.platform 1.1 FileDialog QML Type: https://doc.qt.io/qt-5/qml-qt-labs-platform-filedialog.html

FileDialog {
            id: saveDialog
            property MyClass myObj
            title: "Save Dialog"
            folder: myObjHasAPath? myObj.path: "file:///" //Here you can set your default folder
            currentFile: "file:///"+myObj.name //The name of the item that you want to save
            fileMode: Platform.FileDialog.SaveFile
        }

回答3:

Try setting the FileDialog selectExisting property to false.