First check-in, lots of work to do!

fs/browsewin.py

+#!/usr/bin/env python
+
+import wx
+
+import fs
+
+
+
+class BrowseFrame(wx.Frame):
+
+    def __init__(self, fs):
+        wx.Frame.__init__(self, None)
+
+        self.fs = fs
+        self.SetTitle("FS Browser - "+str(fs))
+
+        self.tree = wx.TreeCtrl(self, -1)
+        self.root_id = self.tree.AddRoot(str(fs), data=wx.TreeItemData( {'path':"/", 'expanded':False} ))
+
+        isz = (16, 16)
+        il = wx.ImageList(isz[0], isz[1])
+        self.fldridx     = il.Add(wx.ArtProvider_GetBitmap(wx.ART_FOLDER,      wx.ART_OTHER, isz))
+        self.fldropenidx = il.Add(wx.ArtProvider_GetBitmap(wx.ART_FILE_OPEN,   wx.ART_OTHER, isz))
+        self.fileidx     = il.Add(wx.ArtProvider_GetBitmap(wx.ART_NORMAL_FILE, wx.ART_OTHER, isz))
+
+        self.tree.SetImageList(il)
+        self.il = il
+
+        self.tree.SetItemImage(self.root_id, self.fldridx, wx.TreeItemIcon_Normal)
+        self.tree.SetItemImage(self.root_id, self.fldropenidx, wx.TreeItemIcon_Expanded)
+
+        self.Bind(wx.EVT_TREE_ITEM_EXPANDED, self.OnItemExpanded)
+
+        self.expand(self.root_id)
+
+
+    def expand(self, item_id):
+
+        item_data = self.tree.GetItemData(item_id).GetData()
+
+        path = item_data["path"]
+
+        if not self.fs.isdir(path):
+            return
+
+        if item_data['expanded']:
+            self.tree.Expand(item_id)
+            return
+
+        paths = self.fs.listdir(path, absolute=True)
+
+        if not paths:
+            self.tree.SetItemHasChildren(item_id, False)
+            self.tree.Collapse(item_id)
+            return
+
+
+        paths.sort(key=lambda p:(not self.fs.isdir(p), p.lower()))
+
+
+        for new_path in paths:
+
+            is_dir = self.fs.isdir(new_path)
+            name = fs.pathsplit(new_path)[-1]
+            new_item = self.tree.AppendItem(item_id, name, data=wx.TreeItemData( {'path':new_path, 'expanded':False}))
+
+            if is_dir:
+                self.tree.SetItemHasChildren(new_item)
+                self.tree.SetItemImage(new_item, self.fldridx, wx.TreeItemIcon_Normal)
+                self.tree.SetItemImage(new_item, self.fldropenidx, wx.TreeItemIcon_Expanded)
+            else:
+                self.tree.SetItemImage(new_item, self.fileidx, wx.TreeItemIcon_Normal)
+
+
+        item_data['expanded'] = True
+        self.tree.Expand(item_id)
+
+
+    def OnItemExpanded(self, e):
+
+        self.expand(e.GetItem())
+
+
+def browse(fs):
+
+    app = wx.PySimpleApp()
+    frame = BrowseFrame(fs)
+    frame.Show()
+    app.MainLoop()
+
+if __name__ == "__main__":
+
+    home_fs = fs.OSFS("~/")
+    browse(home_fs)