/// <inheritdoc/>
public override void UIRedrawing(PanelEventArgs e)
{
base.UIRedrawing(e);
string dir = string.Empty;
var file = CurrentFile;
if (file != null)
{
TreeFile node = (TreeFile)file;
TreeFile parent = node.Parent;
if (parent != null)
{
dir = parent.Path;
}
else
{
dir = node.Path;
}
}
if (dir.Length > 0)
{
Title = "Tree: " + dir;
}
else
{
Title = "Tree";
dir = "*"; // to avoid empty (Far closes on dots or CtrlPgUp); STOP: see _130117_234326
}
//! panel directory is not the same as the explorer location
CurrentLocation = dir;
}
/// <summary>
/// Opens the path on another panel for the FileSystem provider or an item panel as a child of this panel for other providers.
/// </summary>
/// <param name="file">The file to open.</param>
public override void OpenFile(FarFile file)
{
// base
if (UserWants != UserAction.Enter)
{
base.OpenFile(file);
return;
}
// get data
TreeFile node = (TreeFile)file;
PSObject data = node.Data as PSObject;
ProviderInfo provider = (ProviderInfo)data.Properties["PSProvider"].Value;
// open at the passive panel
if (provider.Name == "FileSystem")
{
Far.Api.Panel2.CurrentDirectory = node.Path;
Far.Api.Panel2.Update(false);
Far.Api.Panel2.Redraw();
}
// open at the same panel as child
else
{
ItemPanel panel = new ItemPanel(node.Path);
panel.OpenChild(this);
}
}
internal override void UIAttributes()
{
FarFile file = CurrentFile;
if (file == null)
{
return;
}
TreeFile node = (TreeFile)file;
PSObject data = node.Data as PSObject;
if (data == null)
{
return;
}
// validate provider
ProviderInfo provider = (ProviderInfo)data.Properties["PSProvider"].Value;
if (!My.ProviderInfoEx.HasProperty(provider))
{
A.Message(Res.NotSupportedByProvider);
return;
}
// show property panel
(new PropertyExplorer(node.Path)).OpenPanelChild(this);
}
static void Fill(TreeFile node)
{
// get
Collection <PSObject> items = A.GetChildItems(node.Path);
foreach (PSObject item in items)
{
if (!(bool)item.Properties["PSIsContainer"].Value)
{
continue;
}
TreeFile t = node.ChildFiles.Add();
// name
t.Data = item;
t.Name = (string)item.Properties["PSChildName"].Value;
t.Fill = TheFill;
// description
PSPropertyInfo pi = item.Properties["FarDescription"];
if (pi != null && pi.Value != null)
{
t.Description = pi.Value.ToString();
}
// attributes _090810_180151
if (item.BaseObject is FileSystemInfo fsi)
{
t.Attributes = fsi.Attributes & ~FileAttributes.Directory;
}
}
}
/// <summary>
/// Opens <see cref="MemberPanel"/> for a file.
/// File <c>Data</c> must not be null.
/// </summary>
internal override MemberPanel OpenFileMembers(FarFile file)
{
// get data
TreeFile t = (TreeFile)file;
if (t.Data == null)
{
return(null);
}
//! use null as parent: this panel can be not open now
MemberPanel r = new MemberPanel(new MemberExplorer(t.Data));
r.OpenChild(null);
return(r);
}
void AddFileFromTreeItem(TreeFile item, bool showHidden)
{
if (!showHidden && item.IsHidden)
{
return;
}
int level = item.Level;
string nodePrefix = new string(' ', level * 2);
if (item.IsNode)
{
if (item._State == 1)
{
nodePrefix += "- ";
}
else
{
nodePrefix += "+ ";
}
}
else
{
nodePrefix += " ";
}
if (string.IsNullOrEmpty(item.Name)) //???
{
item.Name = string.Empty;
}
item.Owner = nodePrefix + item.Name;
_Files.Add(item);
if (item._State == 1)
{
foreach (TreeFile ti in item.ChildFiles)
{
AddFileFromTreeItem(ti, showHidden);
}
}
}
void Reset(string path)
{
// set location
if (!string.IsNullOrEmpty(path) && path != ".")
{
A.Psf.Engine.SessionState.Path.SetLocation(path);
}
// get location
PathInfoEx location = new PathInfoEx(A.Psf.Engine.SessionState.Path.CurrentLocation);
if (!My.ProviderInfoEx.IsNavigation(location.Provider))
{
throw new RuntimeException("Provider '" + location.Provider + "' does not support navigation.");
}
// get root item
Collection <PSObject> items = A.Psf.Engine.SessionState.InvokeProvider.Item.Get(new string[] { "." }, true, true);
//! trap Get-Item at Cert:
if (items.Count == 0)
{
throw new RuntimeException(string.Format(null, "Provider '{0}' cannot get '{1}'.", location.Provider, location.Path));
}
PSObject data = items[0];
// reset roots
RootFiles.Clear();
var ti = new TreeFile
{
Name = location.Path, // special case name for the root
Fill = TheFill,
Data = data
};
RootFiles.Add(ti);
ti.Expand();
// panel info
Location = ti.Path;
}
/// <summary>
/// Opens/closes the node.
/// </summary>
/// <param name="file">The node to open/close.</param>
public override void OpenFile(FarFile file)
{
if (file == null)
{
throw new ArgumentNullException("file");
}
TreeFile node = (TreeFile)file;
if (node._State == 0)
{
if (!node.IsNode)
{
return;
}
node.FillNode();
node._State = 1;
}
else
{
node._State = -node._State;
}
UpdateRedraw(false);
}
/// <inheritdoc/>
public override bool UIKeyPressed(KeyInfo key)
{
if (key == null)
{
throw new ArgumentNullException("key");
}
switch (key.VirtualKeyCode)
{
case KeyCode.LeftArrow:
{
if (!key.Is() && !key.IsAlt() || Far.Api.CommandLine.Length > 0)
{
break;
}
FarFile file = CurrentFile;
if (file == null)
{
break;
}
TreeFile node = (TreeFile)file;
if (node._State == 1)
{
// reset
if (key.IsAlt())
{
node.ChildFiles.Clear();
node._State = 0;
UpdateRedraw(false);
return(true);
}
// collapse
OpenFile(file);
}
else if (node.Parent != null)
{
PostFile(node.Parent);
Redraw();
}
return(true);
}
case KeyCode.RightArrow:
{
if (!key.Is() && !key.IsAlt() || Far.Api.CommandLine.Length > 0)
{
break;
}
FarFile file = CurrentFile;
if (file == null)
{
break;
}
TreeFile node = (TreeFile)file;
if (node != null && node._State != 1 && node.IsNode)
{
// reset
if (key.IsAlt())
{
node.ChildFiles.Clear();
node._State = 0;
}
// open
OpenFile(file);
}
else
{
// go to next
Redraw(CurrentIndex + 1, -1);
}
return(true);
}
}
// base
return(base.UIKeyPressed(key));
}
