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Allow drag-and-drop to import multiple project files as either a project or tracks. #1923

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Allow drag-and-drop to import multiple project files as either a project or tracks. #1923

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95be431
Allow drag-and-drop to import project files as either a project or tr…
atouu Jan 13, 2026
52de741
return if import was cancelled
atouu Jan 17, 2026
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4 changes: 4 additions & 0 deletions OpenUtau/Strings/Strings.axaml
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Original file line number Diff line number Diff line change
Expand Up @@ -65,6 +65,10 @@ OpenUtau aims to be an open source editing environment for UTAU community, with
<system:String x:Key="dialogs.voicecolorremapping">Voice color remapping</system:String>
<system:String x:Key="dialogs.voicecolorremapping.error">This singer has no voice color</system:String>
<system:String x:Key="dialogs.voicecolorremapping.caption">Applies to all notes in this track:</system:String>
<system:String x:Key="dialogs.projectimport.caption">Project Import</system:String>
<system:String x:Key="dialogs.projectimport.message">Files to import:</system:String>
<system:String x:Key="dialogs.projectimport.asproject">Import as Project</system:String>
<system:String x:Key="dialogs.projectimport.astracks">Import as Tracks</system:String>

<system:String x:Key="errors.caption">Error</system:String>
<system:String x:Key="errors.details">Error Details</system:String>
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97 changes: 76 additions & 21 deletions OpenUtau/Views/MainWindow.axaml.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -885,29 +885,83 @@ async void OnDrop(object? sender, DragEventArgs args) {
//If multiple project/audio files are dropped, open/import them all.
if (ProjectExts.Contains(FirstExt) || AudioExts.Contains(FirstExt)) {
var projectFiles = supportedFiles.Where(file => ProjectExts.Contains(Path.GetExtension(file).ToLower())).ToArray();
viewModel.Page = 1;
if (projectFiles.Length > 0) {
try {
var loadedProjects = Formats.ReadProjects(files);
// Imports tempo for new projects, otherwise asks the user.
bool importTempo = DocManager.Inst.Project.parts.Count == 0;
if (!importTempo && loadedProjects[0].tempos.Count > 0) {
var tempoString = string.Join("\n",
loadedProjects[0].tempos
.Select(tempo => $"position: {tempo.position}, tempo: {tempo.bpm}")
);
// Ask the user
var result = await MessageBox.Show(
this,
ThemeManager.GetString("dialogs.importtracks.importtempo") + "\n" + tempoString,
ThemeManager.GetString("dialogs.importtracks.caption"),
MessageBox.MessageBoxButtons.YesNo);
importTempo = result == MessageBox.MessageBoxResult.Yes;
bool openAsProject = true;

if (viewModel.Page == 1) {
bool cancelled = true;
var openAs = new MessageBox() {
Title = ThemeManager.GetString("dialogs.projectimport.caption"),
Text = {
Text = $"{ThemeManager.GetString("dialogs.projectimport.message")}\n{string.Join("\n", projectFiles)}"
}
};

var btnAsProject = new Button() {
Content = ThemeManager.GetString("dialogs.projectimport.asproject")
};
btnAsProject.Click += async (s, e) => {
await AskIfSaveAndContinue();
cancelled = false;
openAsProject = true;
openAs.Close();
};
openAs.Buttons.Children.Add(btnAsProject);

var btnAsTracks = new Button() {
Content = ThemeManager.GetString("dialogs.projectimport.astracks")
};
btnAsTracks.Click += (s, e) => {
cancelled = false;
openAsProject = false;
openAs.Close();
};
openAs.Buttons.Children.Add(btnAsTracks);

var tcs = new TaskCompletionSource();
openAs.Closed += delegate {
if (cancelled) {
return;
}
tcs.SetResult();
};
openAs.Show();

await tcs.Task;
}

if (openAsProject) {
try {
viewModel.OpenProject(projectFiles);
} catch (Exception e) {
Log.Error(e, $"Failed to open files {string.Join("\n", projectFiles)}");
_ = await MessageBox.ShowError(this,
new MessageCustomizableException($"Failed to open files {string.Join("\n", projectFiles)}",
$"<translate:errors.failed.openfile>:\n{string.Join("\n", projectFiles)}", e));
}
} else {
try {
var loadedProjects = Formats.ReadProjects(projectFiles);
// Imports tempo for new projects, otherwise asks the user.
bool importTempo = DocManager.Inst.Project.parts.Count == 0;
if (!importTempo && loadedProjects[0].tempos.Count > 0) {
var tempoString = string.Join("\n",
loadedProjects[0].tempos
.Select(tempo => $"position: {tempo.position}, tempo: {tempo.bpm}")
);
// Ask the user
var result = await MessageBox.Show(
this,
ThemeManager.GetString("dialogs.importtracks.importtempo") + "\n" + tempoString,
ThemeManager.GetString("dialogs.importtracks.caption"),
MessageBox.MessageBoxButtons.YesNo);
importTempo = result == MessageBox.MessageBoxResult.Yes;
}
viewModel.ImportTracks(loadedProjects, importTempo);
} catch (Exception e) {
Log.Error(e, "Failed to import project");
_ = await MessageBox.ShowError(this, new MessageCustomizableException("Failed to import files", "<translate:errors.failed.importfiles>", e));
}
viewModel.ImportTracks(loadedProjects, importTempo);
} catch (Exception e) {
Log.Error(e, "Failed to import project");
_ = await MessageBox.ShowError(this, new MessageCustomizableException("Failed to import files", "<translate:errors.failed.importfiles>", e));
}
}
var audioFiles = supportedFiles.Where(file => AudioExts.Contains(Path.GetExtension(file).ToLower())).ToArray();
Expand All @@ -919,6 +973,7 @@ async void OnDrop(object? sender, DragEventArgs args) {
_ = await MessageBox.ShowError(this, new MessageCustomizableException("Failed to import audio", "<translate:errors.failed.importaudio>", e));
}
}
viewModel.Page = 1;
return;
}
// Otherwise, only one installer file is handled at a time.
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