/* ЗАМЕТКА РАЗРАБОТЧИКУ
*
* В данном файле размещаются функции для работы с файлами и каталогами.
* Данные функции запускаются в отдельных от UI потоках из кода
* файла MainWindow-Actions.cs . Всякая функция должна иметь
* префикс Do, означающий её чисто утилитарную принадлежность.
*
* Вызовы пользовательского интерфейса (XWT) должны производиться через
* вызывалку Xwt.Application.Invoke(new Action(delegate { КОД ПОТОКА ИНТЕРФЕЙСА }));
* в противном случае возможны глюки (вылеты WPF, зависания и лаги GTK).
*/
/// <summary>
/// Background file copier
/// </summary>
/// <param name='SourceFS'>Source FS.</param>
/// <param name='DestinationFS'>Destination FS.</param>
/// <param name='SourceURL'>Source file URL.</param>
/// <param name='DestinationURL'>Destination URL.</param>
/// <param name="Feedback">If at the destination URL a file exists, a ReplaceQuestionDialog will be shown. This argument is the place, where the user's last choose should be saved.</param>
/// <param name="AC">The instance of AsyncCopy class that should be used to copy the file.</param>
private void DoCp(IFSPlugin SourceFS, IFSPlugin DestinationFS, string SourceURL, string DestinationURL, ref ReplaceQuestionDialog.ClickedButton Feedback, AsyncCopy AC)
{
if (SourceURL == DestinationURL){
string itself = Localizator.GetString("CantCopySelf");
string toshow = string.Format(Localizator.GetString("CantCopy"), SourceFS.GetMetadata(SourceURL).Name, itself);
Xwt.Application.Invoke(delegate { Xwt.MessageDialog.ShowWarning(toshow); });
//calling the msgbox in non-main threads causes some UI bugs, so push this call into main thread
return;
}
if(DestinationFS.FileExists (DestinationURL)){
ReplaceQuestionDialog rpd = null;
bool ready = false;
Xwt.Application.Invoke(
delegate
{
rpd = new ReplaceQuestionDialog(DestinationFS.GetMetadata(DestinationURL).Name);
ready = true;
}
);
do { } while (!ready);
ready = false;
var ClickedButton = ReplaceQuestionDialog.ClickedButton.Skip;
Xwt.Application.Invoke(
delegate
{
ClickedButton = rpd.Run();
ready = true;
}
);
do {} while (!ready);
switch(ClickedButton){
case ReplaceQuestionDialog.ClickedButton.Replace:
//continue execution
Feedback = rpd.ChoosedButton;
break;
case ReplaceQuestionDialog.ClickedButton.ReplaceAll:
//continue execution
Feedback = rpd.ChoosedButton;
break;
case ReplaceQuestionDialog.ClickedButton.ReplaceOld:
Feedback = rpd.ChoosedButton;
if(SourceFS.GetMetadata(SourceURL).LastWriteTimeUTC < DestinationFS.GetMetadata(DestinationURL).LastWriteTimeUTC)
{/*continue execution*/}
else
{return;}
break;
case ReplaceQuestionDialog.ClickedButton.Skip:
Feedback = rpd.ChoosedButton;
return;
case ReplaceQuestionDialog.ClickedButton.SkipAll:
Feedback = rpd.ChoosedButton;
return;
}
}
try
{
pluginner.FSEntryMetadata md = SourceFS.GetMetadata(SourceURL);
md.FullURL = DestinationURL;
System.IO.Stream SrcStream = SourceFS.GetFileStream(SourceURL);
DestinationFS.Touch(md);
System.IO.Stream DestStream = DestinationFS.GetFileStream(DestinationURL,true);
if(AC == null) AC = new AsyncCopy();
bool CpComplete = false;
AC.OnComplete += result => CpComplete = true;
//warning: due to some GTK# bugs, buffer sizes lesser than 128KB may cause
//an StackOverflowException at UI update code
AC.CopyFile(SrcStream, DestStream, 131072); //buffer is 1/8 megabyte or 128KB
do{ } while(!CpComplete); //don't stop this thread until the copy is finished
}
catch (Exception ex)
{
if (ex.GetType() != typeof(System.Threading.ThreadAbortException)) {
Utilities.ShowMessage(string.Format(Localizator.GetString("CantCopy"),SourceURL,ex.Message));
Console.WriteLine("Cannot copy because of {0}({1}) at \n{2}.", ex.GetType(), ex.Message, ex.StackTrace);
}
}
}
/// <summary>Load the file in the VE (with plugin autodetection)</summary>
/// <param name="URL">The file's URL</param>
/// <param name="FS">The file's filesystem</param>
/// <param name="AllowEdit">Mode of VE: true=editor, false=viewer</param>
public void LoadFile(string URL, IFSPlugin FS, bool AllowEdit)
{
try
{
byte[] ContentBytes = FS.GetFileContent(URL);
string content = (ContentBytes != null && ContentBytes.Length > 0) ? Encoding.UTF8.GetString(ContentBytes) : "";
pluginfinder pf = new pluginfinder();
string GottenHeaders;
if (content.Length >= 20) GottenHeaders = content.Substring(0, 20);
else GottenHeaders = content;
LoadFile(URL, FS, pf.GetFCVEplugin("NAME=" + URL + "HEADERS=" + GottenHeaders), AllowEdit);
}
catch (pluginfinder.PluginNotFoundException ex)
{
// ReSharper disable LocalizableElement
Console.WriteLine("ERROR: VE plugin is not loaded: " + ex.Message + "\n" + ex.StackTrace);
MessageDialog.ShowError(Localizator.GetString("FCVE_PluginNotFound"));
LoadFile(URL, FS, new PlainText(), AllowEdit);
}
catch (Exception ex)
{
MessageDialog.ShowError(string.Format(Localizator.GetString("FCVE_LoadError"),ex.Message));
Console.WriteLine("ERROR: VE can't load file: " + ex.Message + "\n" + ex.StackTrace);
// ReSharper restore LocalizableElement
}
}
/// <summary>Load the file in the VE</summary>
/// <param name="URL">The URL of the file</param>
/// <param name="FS">The filesystem of the file</param>
/// <param name="plugin">The VE plugin, which will be used to load this file</param>
/// <param name="AllowEdit">Allow editing the file</param>
public void LoadFile(string URL, IFSPlugin FS, IVEPlugin plugin, bool AllowEdit)
{
//check for external editor
try{
if (Settings.Default.UseExternalEditor && AllowEdit || Settings.Default.UseExternalViewer && !AllowEdit && URL.StartsWith("file:")){
CanBeShowed = false;
if (AllowEdit){
ExecuteProgram(Settings.Default.ExternalEditor.Replace("$", "\"" + URL));
}
else{
ExecuteProgram(Settings.Default.ExternalViewer.Replace("$", "\"" + URL));
}
return;
}
}
catch (Exception ex) { MessageDialog.ShowError(Localizator.GetString("CantRunEXE"), ex.Message); CanBeShowed = false; return; }
FileNameForTitle = URL.Substring(URL.LastIndexOf(FS.DirSeparator, StringComparison.Ordinal) + 1);
IsEditor = AllowEdit;
if(AllowEdit)
Title = string.Format(Localizator.GetString("FCETitle"), FileNameForTitle);
else
Title = string.Format(Localizator.GetString("FCVTitle"), FileNameForTitle);
FileProcessDialog ProgressDialog = new FileProcessDialog();
string ProgressInitialText = String.Format(Localizator.GetString("FCVELoadingMsg"),URL);
ProgressDialog.lblStatus.Text = ProgressInitialText;
FS.ProgressChanged += d => { ProgressDialog.pbrProgress.Fraction = (d >= 0 && d <= 1) ? d : ProgressDialog.pbrProgress.Fraction; Xwt.Application.MainLoop.DispatchPendingEvents(); };
FS.StatusChanged += d => { ProgressDialog.lblStatus.Text = ProgressInitialText + "\n" + d; Xwt.Application.MainLoop.DispatchPendingEvents(); };
ProgressDialog.cmdCancel.Clicked += (o, ea) => { CanBeShowed = false; ProgressDialog.Close(); };
ProgressDialog.Show();
Xwt.Application.MainLoop.DispatchPendingEvents();
if (!CanBeShowed) return;
try {
Plugin = plugin;
Plugin.ReadOnly = !AllowEdit;
Plugin.OpenFile(URL, FS);
Plugin.ShowToolbar = Settings.Default.VE_ShowToolbar;
Plugin.Stylist = s;
mnuFormat.SubMenu = Plugin.FormatMenu;
bool Mode = AllowEdit;
if (!Plugin.CanEdit && AllowEdit)
{
MessageDialog.ShowWarning(String.Format(Localizator.GetString("FCVEpluginro1"), Plugin.Name + " " + Plugin.Version), Localizator.GetString("FCVEpluginro2"));
Mode = false;
}
FSPlugin = FS;
PluginBody = Plugin.Body;
SetVEMode(Mode);
}
catch (Exception ex)
{
MessageDialog.ShowWarning(ex.Message);
if(PluginBody.GetType() == typeof(Spinner)) { ProgressDialog.Close(); CanBeShowed = false; return;}
}
BuildLayout();
ProgressDialog.Close();
}
public void OpenFile(string url, IFSPlugin fsplugin)
{
doc.LoadXml( Encoding.Default.GetString(fsplugin.GetFileContent(url)));
if (doc.ChildNodes.Count > 0)
{
int deep = 0;
foreach (XmlNode n in doc.ChildNodes)
{
if (n.NodeType != XmlNodeType.XmlDeclaration) //skip "<?xml version=... codepage=..."
{
XmlDisplay child_xd = new XmlDisplay(n, ht) { Tag = n, MarginLeft = ((deep > 0) ? 12 : 0) };
layout.PackStart(child_xd); //обеспечивается рекурсивность
}
}
sw = new ScrollView(layout);
}
else
{
XmlDisplay xd = new XmlDisplay(doc.ChildNodes[0], ht);
sw = new ScrollView(xd);
}
}
