direct/python/yaffs_browser.py

   1 #!/usr/bin/python
   2 import Tkinter as tk
   3 from yaffsfs import *
   4 #import examples
   5 import ctypes
   6
   7 yaffs_StartUp()
   8 yaffs_mount("yaffs2/")
   9 root_window =tk.Tk()
  10 root_window.title("YAFFS Browser")
  11 mount_list_text_variable=tk.StringVar()
  12
  13 mount_list_text_variable.set("yaffs2/")
  14 current_directory_dict={}
  15 open_windows_list=[]
  16
  17 class editor():
  18     yaffs_handle=0
  19     file_editor_root =0
  20     save_button=[]
  21     file_contents=0
  22     file_path=0
  23     def save_file(self):
  24         #global current_directory_dict
  25         print "saving the file"
  26         print self.file_editor_text.get("1.0", tk.END) ##"1.0" is the index of the first line of text
  27         yaffs_lseek(self.yaffs_handle, 0, 0)
  28         data_to_be_written=self.file_editor_text.get("1.0", tk.END)
  29         print "data to be saved", data_to_be_written
  30         length_of_file=len(data_to_be_written)
  31         print "length of data to be written",length_of_file
  32         output=yaffs_write(self.yaffs_handle,data_to_be_written , length_of_file)
  33         print "output", output
  34         yaffs_ftruncate(self.yaffs_handle, length_of_file)
  35         yaffs_close(self.yaffs_handle)
  36
  37         self.yaffs_handle = yaffs_open(self.file_path,66,0666)
  38         load_dir()
  39
  40     def __init__(self):
  41         global current_directory_dict
  42         x=name_list_box.curselection()
  43         self.id=int(x[0])
  44         self.file_editor_root =tk.Toplevel()
  45         self.save_button=tk.Button(self.file_editor_root, text="save", command=self.save_file)
  46         self.save_button.pack()
  47
  48         self.file_path=current_directory_dict[self.id]["path"]
  49         print "file path", self.file_path
  50         self.file_editor_root.title(current_directory_dict[self.id]["path"])
  51         self.file_editor_text=tk.Text(self.file_editor_root)
  52         self.yaffs_handle = yaffs_open(current_directory_dict[self.id]["path"],66,0666)
  53         length_of_file=yaffs_lseek(self.yaffs_handle, 0, 2) ##seeks to the end of the file
  54         yaffs_lseek(self.yaffs_handle, 0, 0)## returns the handle to the front of th file
  55         self.file_contents=ctypes.create_string_buffer(length_of_file)
  56         yaffs_read(self.yaffs_handle,self.file_contents,length_of_file)
  57         print "file contents", self.file_contents.raw
  58         self.file_editor_text.insert(tk.END, self.file_contents.raw)
  59         self.file_editor_text.pack()
  60         ##self.file_editor_text.bind("<Control-s>", self.save_file)
  61         ##doesn't work because it can't pass "self"
  62
  63 def load_dir():
  64     global current_directory_dict
  65     print "loading a new directory*******************************************************************"
  66     name_list_box.delete(0, tk.END)
  67     current_directory_dict=yaffs_ls(mount_list_text_variable.get())
  68     print "new directory", current_directory_dict
  69     ##copy directory into file box
  70     for x in range(0,len(current_directory_dict)):
  71         name_list_box.insert(x,(current_directory_dict[x]["inodes"]+"  "+ current_directory_dict[x]["type"]+"  "+ current_directory_dict[x]["size"]+"  "+ current_directory_dict[x]["path"]))
  72     name_list_box.grid(column=0, row=1)
  73     return current_directory_dict
  74
  75 def load_file():
  76     global open_windows_list
  77     open_windows_list.append(editor())
  78
  79 def load_command(self=0):
  80     global current_directory_dict
  81     print "you loaded a file/dir"
  82     x=name_list_box.curselection()
  83     x=int(x[0])
  84     print "cursor selection", x
  85     print "dict", current_directory_dict
  86
  87     print "file inode is:", current_directory_dict[x]["inodes"]
  88
  89
  90     print "file path is:", current_directory_dict[x]["path"]
  91     if current_directory_dict[x]["type"]=="dir":
  92         ##open dir
  93         print "open directory"
  94         mount_list_text_variable.set(current_directory_dict[x]["path"])
  95         print mount_list_text_variable.get()
  96         print "old directory dict", current_directory_dict
  97         #current_directory_dict=load_dir()
  98         load_dir()
  99
 100         print "new directory dict passed back"
 101
 102     elif current_directory_dict[x]["type"]=="file" :
 103         ##open file
 104         print "open file"
 105         load_file()
 106
 107
 108     ##mount_list_text_variable.set(mount_list_text_variable.get()+str(list[0][0]))
 109
 110 def back_a_directory(self=0):
 111     x=len(mount_list_text_variable.get())
 112     string=mount_list_text_variable.get()
 113     slashes_id=[]
 114     #print "length of path", x
 115     #print "string been sorted:",  string
 116     for i in range(0, x):
 117         if string[i]=='/':
 118             slashes_id.append(i)
 119             #print "slash found at:", i
 120
 121     print slashes_id
 122     ##slashes_id.sort() not needed because the list is already in acending order
 123     ##print "sorted",slashes_id
 124
 125     string=string[0: slashes_id[len(slashes_id)-2]+1]
 126     print string
 127     mount_list_text_variable.set(string)
 128     load_dir()
 129
 130
 131
 132
 133
 134
 135 def yaffs_ls(dname):
 136     ls_dict=[]
 137
 138     if dname[-1] != "/": dname = dname + "/"
 139     dc = yaffs_opendir(dname)
 140     if dc != 0 :
 141         sep = yaffs_readdir(dc)
 142         while bool(sep):
 143
 144             se = sep.contents
 145             fullname = dname + se.d_name
 146             st = yaffs_stat_struct()
 147             result = yaffs_stat(fullname,byref(st))
 148             perms = st.st_mode & 0777
 149             isFile = True if st.st_mode & 0x8000 else False
 150             isDir  = True if st.st_mode & 0x4000 else False
 151
 152             if isFile :
 153                 ls_dict.append ({"type" :"file",  "inodes" :  str(se.d_ino),   "permissions" : str(hex(perms)),  "size": str(st.st_size), "path":  fullname})
 154             elif isDir :
 155                 ls_dict.append({"type":"dir", "inodes" :str(se.d_ino), "permissions":str( hex(perms)),"size":"0",   "path": fullname+"/"})
 156
 157 #            else :
 158 #               ls_dict.append( "Other ("+hex(st.st_mode)+") "+se.d_ino, hex(perms)+ fullname)
 159             sep = yaffs_readdir(dc)
 160         yaffs_closedir(dc)
 161         return ls_dict
 162     else:
 163         print "Could not open directory"
 164         return -1
 165
 166
 167 ##toolbar
 168 toolbar_frame=tk.Frame(root_window)
 169 button_open=tk.Button(toolbar_frame, command=load_command, text="load")
 170 button_open.grid(column=0, row=0)
 171 button_back=tk.Button(toolbar_frame, command=back_a_directory, text="back")
 172 button_back.grid(column=1, row=0)
 173 toolbar_frame.grid(row=0, column=0,  columnspan=3)
 174
 175
 176
 177 class new_file():
 178     path_entry_box=0
 179     new_file_window=0
 180     def open_the_file(self):
 181         global mount_list_text_variable
 182         print "trying to create", mount_list_text_variable.get()+self.path_entry_box.get()
 183         yaffs_handle=yaffs_open(self.path_entry_box.get(),66,0666)
 184         yaffs_close(yaffs_handle)
 185         self.new_file_window.destroy()
 186         load_dir()
 187
 188     def cancel(self):
 189         ##del self
 190         self.new_file_window.destroy()
 191     def __init__(self):
 192         global mount_list_text_variable
 193         self.new_file_window =tk.Toplevel(takefocus=True)
 194         path_frame=tk.Frame(self.new_file_window)
 195         path_label=tk.Label(path_frame, text="file path")
 196         path_label.pack(side=tk.LEFT)
 197         text=tk.StringVar()
 198         text.set(mount_list_text_variable.get())
 199         print "############################",mount_list_text_variable.get()
 200         self.path_entry_box= tk.Entry(path_frame, textvariable=text)
 201         self.path_entry_box.pack(side=tk.RIGHT)
 202         path_frame.pack()
 203         button_frame=tk.Frame(self.new_file_window)
 204         create_button=tk.Button(button_frame, text="Create", command=self.open_the_file)
 205         create_button.pack(side=tk.LEFT)
 206         cancel_button=tk.Button(button_frame, text="Cancel", command=self.cancel)
 207         cancel_button.pack(side=tk.RIGHT)
 208         button_frame.pack()
 209
 210 class new_folder():
 211     path_entry_box=0
 212     new_folder_window=0
 213     def create_the_folder(self):
 214         global mount_list_text_variable
 215         print "trying to create", mount_list_text_variable.get()+self.path_entry_box.get()
 216         yaffs_mkdir(self.path_entry_box.get(),0666)
 217         self.new_folder_window.destroy()
 218
 219         load_dir()
 220
 221     def cancel(self):
 222         ##del self
 223         self.new_folder_window.destroy()
 224     def __init__(self):
 225         global mount_list_text_variable
 226         self.new_folder_window =tk.Toplevel(takefocus=True)
 227         path_frame=tk.Frame(self.new_folder_window)
 228         path_label=tk.Label(path_frame, text="directory path")
 229         path_label.pack(side=tk.LEFT)
 230         text=tk.StringVar()
 231         text.set(mount_list_text_variable.get())
 232         print "############################",mount_list_text_variable.get()
 233         self.path_entry_box= tk.Entry(path_frame, textvariable=text)
 234         self.path_entry_box.pack(side=tk.RIGHT)
 235         path_frame.pack()
 236         button_frame=tk.Frame(self.new_folder_window)
 237         create_button=tk.Button(button_frame, text="Create", command=self.create_the_folder)
 238         create_button.pack(side=tk.LEFT)
 239         cancel_button=tk.Button(button_frame, text="Cancel", command=self.cancel)
 240         cancel_button.pack(side=tk.RIGHT)
 241         button_frame.pack()
 242
 243
 244
 245
 246 ##mount list entry box init
 247 mount_list_frame=tk.Frame(root_window)
 248 mount_list_label=tk.Label(mount_list_frame, text="mount list")
 249 mount_list_label.pack(side=tk.RIGHT)
 250
 251 mount_list_entry_box= tk.Entry(mount_list_frame,textvariable=mount_list_text_variable)
 252 mount_list_entry_box.pack(side=tk.RIGHT)
 253 mount_list_frame.grid(row=1, column=0, columnspan=2)
 254
 255
 256 list_frame=tk.Frame(root_window)
 257 name_list_box=tk.Listbox(list_frame,exportselection=0, height=30, width=50)
 258 load_dir()
 259 list_frame.grid()
 260
 261 name_list_box.bind("<Double-Button-1>", load_command)
 262
 263 browser_menu_bar=tk.Menu(root_window)
 264 browser_file_menu=tk.Menu(browser_menu_bar)
 265
 266 browser_file_menu.add_command(label="Reload", command=load_dir)
 267 browser_file_menu.add_command(label="Open")
 268 browser_file_menu.add_command(label="Save")
 269 browser_menu_bar.add_cascade(label="File", menu=browser_file_menu)
 270 root_window.config(menu=browser_menu_bar)
 271
 272
 273 browser_edit_menu=tk.Menu(browser_menu_bar)
 274
 275 browser_edit_menu.add_command(label="New File", command=new_file)
 276 browser_edit_menu.add_command(label="New Folder", command=new_folder)
 277 browser_edit_menu.add_command(label="Rename File")
 278 browser_menu_bar.add_cascade(label="Edit", menu=browser_edit_menu)
 279
 280
 281
 282
 283
 284
 285 root_window.mainloop()
 286
 287 print"unmounting yaffs:", yaffs_unmount("yaffs2/")
 288
 289