editor.py

   1 import rox
   2 from rox import g
   3 import os
   4 import type
   5
   6 edit_boxes = {}
   7
   8 ADD = 1
   9 DELETE = 2
  10 EDIT = 3
  11
  12 class Editor(rox.Dialog):
  13         def __init__(self):
  14                 rox.Dialog.__init__(self)
  15                 self.set_default_size(600, 400)
  16                 self.set_has_separator(False)
  17
  18                 self.add_type = None
  19
  20                 self.add_button(g.STOCK_ADD, ADD)
  21                 self.add_button(g.STOCK_DELETE, DELETE)
  22                 self.add_button(g.STOCK_PROPERTIES, EDIT)
  23                 self.add_button(g.STOCK_CLOSE, g.RESPONSE_CANCEL)
  24
  25                 self.set_default_response(g.RESPONSE_CANCEL)
  26
  27                 swin = g.ScrolledWindow()
  28                 swin.set_border_width(4)
  29                 swin.set_policy(g.POLICY_NEVER, g.POLICY_ALWAYS)
  30                 swin.set_shadow_type(g.SHADOW_IN)
  31                 self.vbox.pack_start(swin, True, True, 0)
  32
  33                 self.mime_model = g.TreeStore(str, str)
  34                 view = g.TreeView(self.mime_model)
  35                 swin.add(view)
  36                 view.set_search_column(1)
  37
  38                 cell = g.CellRendererText()
  39                 column = g.TreeViewColumn('MIME-Type', cell, text = 0)
  40                 view.append_column(column)
  41                 column.set_sort_column_id(0)
  42
  43                 cell = g.CellRendererText()
  44                 column = g.TreeViewColumn('Description', cell, text = 1)
  45                 view.append_column(column)
  46                 column.set_sort_column_id(1)
  47
  48                 view.connect('row-activated', self.activate)
  49
  50                 self.vbox.show_all()
  51
  52                 def response(self, resp):
  53                         if resp == EDIT:
  54                                 self.edit_selected(view.get_selection())
  55                         elif resp == DELETE:
  56                                 self.delete_type(view)
  57                         elif resp == ADD:
  58                                 if self.add_type:
  59                                         self.add_type.present()
  60                                 else:
  61                                         self.add_type = NewType()
  62                                         def destroyed(widget): self.add_type = None
  63                                         self.add_type.connect('destroy', destroyed)
  64                                         self.add_type.show()
  65                         else:
  66                                 self.destroy()
  67                 self.connect('response', response)
  68
  69                 def changed(selection):
  70                         model, iter = selection.get_selected()
  71                         self.set_response_sensitive(EDIT, iter != None)
  72                         self.set_response_sensitive(DELETE, iter != None)
  73                 selection = view.get_selection()
  74                 selection.connect('changed', changed)
  75                 changed(selection)
  76
  77         def delete_type(self, view):
  78                 model, iter = view.get_selection().get_selected()
  79                 if not iter:
  80                         rox.alert('Nothing selected')
  81                         return
  82                 type_name = model.get_value(iter, 0)
  83                 type.delete_type(type_name)
  84
  85         def update(self):
  86                 self.set_title('Scanning... please wait')
  87                 g.gdk.flush()
  88
  89                 type.init()
  90
  91                 self.mime_model.clear()
  92
  93                 medias = {}
  94
  95                 def items_cmp(a, b):
  96                         return cmp(a[1], b[1])
  97                 def caps(a):
  98                         return a[:1].upper() + a[1:]
  99                 items = [(t, caps(t.get_comment())) for t in type.types.values()]
 100                 items.sort(items_cmp)
 101                 for t, c in items:
 102                         iter = self.mime_model.append(None)
 103                         self.mime_model.set(iter, 1, c, 0, t.get_name())
 104
 105                 self.set_title('MIME-Editor')
 106
 107                 for b in edit_boxes.values():
 108                         if b.mime_type in type.types:
 109                                 b.update()
 110                         else:
 111                                 b.destroy()
 112
 113         def activate(self, view, path, column):
 114                 iter = self.mime_model.get_iter(path)
 115                 type_name = self.mime_model.get_value(iter, 0)
 116                 self.edit(type_name)
 117
 118         def edit(self, type_name):
 119                 if type_name in edit_boxes:
 120                         edit_boxes[type_name].present()
 121                 else:
 122                         box = EditBox(type_name)
 123                         edit_boxes[type_name] = box
 124                         def destroy(dialog): del edit_boxes[type_name]
 125                         box.connect('destroy', destroy)
 126                         box.show()
 127
 128         def edit_selected(self, selection):
 129                 model, iter = selection.get_selected()
 130                 if not iter:
 131                         rox.alert('You need to select a type to edit first')
 132                 else:
 133                         type_name = model.get_value(iter, 0)
 134                         self.edit(type_name)
 135
 136 class EditBox(rox.Dialog):
 137         def __init__(self, type_name):
 138                 rox.Dialog.__init__(self)
 139                 self.set_has_separator(False)
 140                 self.set_default_size(-1, 400)
 141                 self.mime_type = type_name
 142
 143                 self.set_title('MIME-Editor: %s' % type_name)
 144
 145                 swin = g.ScrolledWindow()
 146                 swin.set_border_width(4)
 147                 swin.set_shadow_type(g.SHADOW_IN)
 148                 self.vbox.pack_start(swin, True, True, 0)
 149
 150                 self.model = g.TreeStore(str, object)
 151                 view = g.TreeView(self.model)
 152                 swin.add(view)
 153
 154                 cell = g.CellRendererText()
 155                 column = g.TreeViewColumn(type_name, cell, text = 0)
 156                 view.append_column(column)
 157
 158                 swin.set_policy(g.POLICY_NEVER, g.POLICY_AUTOMATIC)
 159                 self.update()
 160
 161                 self.vbox.show_all()
 162                 view.expand_all()
 163
 164                 self.add_button(g.STOCK_ADD, ADD)
 165                 self.add_button(g.STOCK_DELETE, DELETE)
 166                 self.add_button(g.STOCK_PROPERTIES, EDIT)
 167                 self.add_button(g.STOCK_CLOSE, g.RESPONSE_CANCEL)
 168                 def response(w, resp):
 169                         if resp == ADD:
 170                                 self.add_field(view)
 171                         elif resp == DELETE:
 172                                 self.delete_field(view)
 173                         elif resp == EDIT:
 174                                 self.edit_field(view)
 175                         else:
 176                                 self.destroy()
 177                 self.connect('response', response)
 178
 179                 def changed(selection):
 180                         model, iter = selection.get_selected()
 181                         on_field = False
 182                         if iter != None:
 183                                 path = model.get_path(iter)
 184                                 on_field = len(path) > 1
 185                         self.set_response_sensitive(ADD, iter != None)
 186                         self.set_response_sensitive(EDIT, on_field)
 187                         self.set_response_sensitive(DELETE, on_field)
 188                 selection = view.get_selection()
 189                 selection.connect('changed', changed)
 190                 changed(selection)
 191
 192                 def activate(view, path, column):
 193                         iter = self.model.get_iter(path)
 194                         field = self.model.get_value(iter, 1)
 195                         if len(path) == 1:
 196                                 self.add_new_field(field)
 197                         else:
 198                                 field.edit()
 199                 view.connect('row-activated', activate)
 200
 201                 self.set_default_response(g.RESPONSE_CANCEL)
 202
 203         def update(self):
 204                 t = type.get_type(self.mime_type)
 205                 self.model.clear()
 206                 for aspect, getter, klass in [('Name matching', t.get_globs, type.Glob),
 207                                              ('Contents matching', t.get_magic, type.Magic),
 208                                              ('XML namespace matching', t.get_xml, type.XML),
 209                                              ('Others', t.get_others, type.Other),
 210                                              ('Descriptions', t.get_comments, type.Comment)]:
 211                         iter = self.model.append(None)
 212                         self.model.set(iter, 0, aspect, 1, klass)
 213                         fields = getter()
 214                         fields.sort(lambda a, b: cmp(str(a), str(b)))
 215                         last = None
 216                         for field in fields:
 217                                 if field == last: continue
 218                                 last = field
 219                                 f = self.model.append(iter)
 220                                 self.model.set(f, 0, str(field), 1, field)
 221                                 field.add_subtree(self.model, f)
 222
 223         def add_new_field(self, type):
 224                 rox.alert("TODO: Add field of type '%s'" % type)
 225
 226         def add_field(self, view):
 227                 model, iter = view.get_selection().get_selected()
 228                 if not iter:
 229                         rox.alert('You need to select a group, so I know what kind of thing to add')
 230                         return
 231                 path = model.get_path(iter)
 232                 field = model.get_value(model.get_iter(path[:1]), 1)
 233                 self.add_new_field(field)
 234
 235         def delete_field(self, view):
 236                 model, iter = view.get_selection().get_selected()
 237                 if not iter:
 238                         rox.alert("Nothing selected!")
 239                 field = model.get_value(iter, 1)
 240                 assert field
 241                 field.delete()
 242
 243         def edit_field(self, view):
 244                 model, iter = view.get_selection().get_selected()
 245                 if not iter:
 246                         rox.alert("Nothing selected!")
 247                 field = model.get_value(iter, 1)
 248                 assert field
 249                 field.edit()
 250
 251 class NewType(rox.Dialog):
 252         def __init__(self):
 253                 rox.Dialog.__init__(self)
 254                 self.set_title('Add new MIME type')
 255
 256                 self.add_button(g.STOCK_CANCEL, g.RESPONSE_CANCEL)
 257                 self.add_button(g.STOCK_ADD, g.RESPONSE_OK)
 258                 self.set_default_response(g.RESPONSE_OK)
 259
 260                 vbox = g.VBox(False, 4)
 261                 self.vbox.pack_start(vbox, True, True, 0)
 262                 vbox.set_border_width(4)
 263
 264                 hbox = g.HBox(False, 4)
 265                 vbox.pack_start(hbox, False, True, 0)
 266                 label = g.Label("Media type:")
 267                 hbox.pack_start(label, False, True, 0)
 268                 combo = g.Combo()
 269                 combo.set_popdown_strings(["text", "application", "image", "audio",
 270                                            "video", "message", "model"])
 271                 hbox.pack_start(combo, True, True, 0)
 272
 273                 hbox = g.HBox(False, 4)
 274                 vbox.pack_start(hbox, False, True, 0)
 275                 label = g.Label("Subtype:")
 276                 hbox.pack_start(label, False, True, 0)
 277                 entry = g.Entry()
 278                 entry.set_text('x-my-type')
 279                 hbox.pack_start(entry, True, True, 0)
 280                 entry.set_activates_default(True)
 281
 282                 label = g.Label("Note: the 'text' group should only be used for types that can be "
 283                                 "viewed in a normal text editor. For example, HTML is text/html, "
 284                                 "but Word documents are in the 'application' group.\n"
 285                                 "Unoffical types should start with 'x-'.")
 286                 label.set_line_wrap(True)
 287                 vbox.pack_start(label, False, True, 0)
 288
 289                 self.vbox.show_all()
 290
 291                 def response(w, resp):
 292                         if resp == g.RESPONSE_OK:
 293                                 type_name = combo.entry.get_text() + '/' + entry.get_text()
 294                                 if type_name.count('/') != 1 or type_name.count(' '):
 295                                         rox.alert("Invalid MIME type name '%s'" % type_name)
 296                                         return
 297                                 if type_name in type.types:
 298                                         rox.alert("Type '%s' already exists!" % type_name)
 299                                         return
 300                                 type.add_type(type_name)
 301                         self.destroy()
 302                 self.connect('response', response)