private AutoSaveIndex GetCurrentAutoSaveIndex()
{
_masterAutoSaveIndex.TryGetValue(CurrentProcessId, out AutoSaveIndex index);
if (index == null)
{
index = AutoSaveIndex.Create();
_masterAutoSaveIndex.Add(CurrentProcessId, index);
}
return(index);
}
// this gets called from a timer, so it's already running off the UI thread, so this IO should not be blocking
private void SaveIndex(AutoSaveIndex index)
{
JsonSerializer serializer = new JsonSerializer();
using (StreamWriter sw = new StreamWriter(AutoSaveIndexFile(index)))
using (JsonWriter writer = new JsonTextWriter(sw))
{
serializer.Serialize(writer, index);
}
}
public async static Task Save(DocumentTabViewModel tabs)
{
try
{
// exit here if no tabs are open
if (tabs.Items.Count == 0)
{
return;
}
var currentProcessId = Process.GetCurrentProcess().Id;
AutoSaveIndex index;
_masterAutoSaveIndex.TryGetValue(currentProcessId, out index);
if (index == null)
{
index = new AutoSaveIndex();
_masterAutoSaveIndex.Add(currentProcessId, index);
}
foreach (DocumentViewModel tab in tabs.Items)
{
if (tab.IsDirty)
{
index.Add(tab);
}
// don't autosave if the document has not changed since last save
// or if IsDirty is false meaning that the file has been manually saved
if (tab.IsDirty || tab.LastAutoSaveUtcTime < tab.LastModifiedUtcTime)
{
await tab.AutoSave();
}
}
SaveIndex(index);
}
catch (Exception ex)
{
Log.Error(ex, "{class} {method} {message}", "AutoSaver", "Save", ex.Message);
}
}
internal string AutoSaveIndexFile(AutoSaveIndex index)
{
return(Path.Combine(ApplicationPaths.AutoSavePath, index.IndexFile));
}
internal static string AutoSaveIndexFile(AutoSaveIndex index)
{
return(Path.Combine(Environment.ExpandEnvironmentVariables(Constants.AutoSaveFolder), index.IndexFile));
}
