#!/usr/bin/env python

import os
import os.path
import sys

import gtk
import pango
import gconf
import dbus

import md5
import urllib

from getopt import getopt

SERVICES = [
      ( 'Files',             'system-file-manager'      ),
      ( 'Folders',           'folder'                   ),
      ( 'Applications',      'application-x-executable' ),
      ( 'Conversations',     'face-smile-big'           ),
      ( 'Contacts',          'x-office-address-book'    ),
      ( 'Development Files', 'applications-development' ),
      ( 'Documents',         'x-office-document'        ),
      ( 'Emails',            'email'                    ),
      ( 'Images',            'image-x-generic'          ),
      ( 'Music',             'audio-x-generic'          ),
      ( 'Text Files',        'text-x-generic'           ),
      ( 'Videos',            'video-x-generic'          ),
   ]

DISPLAY_METADATA = {
      'Files'     : [ 'file.name', 'file.format', 'file.path', 'file.size', 'file.rank', ],
      'Music'     : [ 'audio.artist', 'audio.album', 'audio.trackno', 'audio.title', 'audio.genre', 'audio.codec' ],
      'Documents' : [ 'doc.title', 'doc.author', 'doc.subject' ],
      'Images'    : [ 'image.title', 'image.height', 'image.width' ],
   }

def FileSizeFormat(hbox, size):
   label = gtk.Label()
   size = int(size)
   if size < 2**10:
      label.set_text('%d bytes' % size)
   elif size < 2**20:
      label.set_text('%3.1f KB' % (size / 2.**10))
   elif size < 2**30:
      label.set_text('%3.1f MB' % (size / 2.**20))
   elif size < 2**40:
      label.set_text('%3.1f GB' % (size / 2.**30))
   hbox.pack_start(label, expand=False, fill=False)

def FileRankFormat(hbox, rank):
   if not rank:
      rank='7'
   i = 0
   rank = float(rank) / 2.
   while rank > 0.5:
      hbox.pack_start(gtk.image_new_from_icon_name('weather-clear', gtk.ICON_SIZE_MENU), expand=False, fill=False)
      i += 1
      rank -= 1
   if rank == 0.5:
      hbox.pack_start(gtk.image_new_from_icon_name('weather-few-clouds', gtk.ICON_SIZE_MENU), expand=False, fill=False)
      i += 1
   while i < 5:
      hbox.pack_start(gtk.image_new_from_icon_name('weather-overcast', gtk.ICON_SIZE_MENU), expand=False, fill=False)
      i += 1

def ImageSizeFormat(hbox, size):
   hbox.pack_start(gtk.Label(size + ' px'), expand=False, fill=False)

METADATA_LABELS = {
      'audio.trackno':'Track #'
   }
METADATA_FORMATTERS = {
      'file.size':FileSizeFormat,
      'file.rank':FileRankFormat,
      'image.height':ImageSizeFormat,
      'image.width':ImageSizeFormat,
   }

class Tracker:
   def __init__(self):
      bus = dbus.SessionBus()
      obj = bus.get_object('org.freedesktop.Tracker',
                           '/org/freedesktop/tracker')
      self.tracker = dbus.Interface(obj, 'org.freedesktop.Tracker')
      self.files = dbus.Interface(obj, 'org.freedesktop.Tracker.Files')
      self.search = dbus.Interface(obj, 'org.freedesktop.Tracker.Search')
      self.keywords = dbus.Interface(obj, 'org.freedesktop.Tracker.Keywords')
      self.metadata = dbus.Interface(obj, 'org.freedesktop.Tracker.Metadata')

   def __getattr__(self, attr):
      return getattr(self.tracker, attr)

class TrackerGUI:

   def __init__(self):
      
      self.gconf = gconf.client_get_default()
      self.icon_theme = gtk.icon_theme_get_default()
      self.tracker = Tracker()

      self.layout = 1
      self.max_results = 20
      opts,args = getopt(sys.argv[1:], '', ['layout=', 'max-hits='])
      for a,v in opts:
         if a == '--layout':
            self.layout = int(v)
         elif a == '--max-hits':
            self.max_results = int(v)

      self.window = gtk.Window()
      self.window.set_title('Tracker')

      main_vbox = gtk.VBox()
      #main_vbox.set_border_width(12)
      main_vbox.set_spacing(6)

      hbox = gtk.HBox()
      hbox.set_spacing(6)
      hbox.set_border_width(12)

      label = gtk.Label('_Search:')
      hbox.pack_start(label, expand=False, fill=False)

      self.search_entry = gtk.Entry()
      hbox.pack_start(self.search_entry, expand=True, fill=True)

      label.props.use_underline = True
      label.set_mnemonic_widget(self.search_entry)

      if self.layout == 1:
         self.service_combobox = gtk.ComboBox()
         store = gtk.ListStore(gtk.gdk.Pixbuf, str)
         self.service_combobox.set_model(store)
         cell = gtk.CellRendererPixbuf()
         self.service_combobox.pack_start(cell, False)
         self.service_combobox.add_attribute(cell, 'pixbuf', 0)
         cell = gtk.CellRendererText()
         self.service_combobox.pack_start(cell, False)
         self.service_combobox.add_attribute(cell, 'text', 1)
         for label, icon_name in SERVICES:
            pixbuf = self.icon_theme.load_icon(icon_name,
               gtk.ICON_SIZE_MENU, gtk.ICON_LOOKUP_USE_BUILTIN)
            store.append([pixbuf, label])
         self.service_combobox.set_active(0)
         hbox.pack_start(self.service_combobox, expand=False, fill=True)


      self.search_button = gtk.Button(stock='gtk-find')
      self.search_button.set_data('offset', 0)
      hbox.pack_start(self.search_button, expand=False, fill=False)

      main_vbox.pack_start(hbox, expand=False, fill=False)

      hbox = gtk.HBox()

      if self.layout == 2:
         self.service_treeview = gtk.TreeView()
         store = gtk.ListStore(gtk.gdk.Pixbuf, str)
         self.service_treeview.set_model(store)
         #self.service_treeview.set_sensitive(False)
         self.service_treeview.set_headers_visible(False)
         self.service_treeview.set_row_separator_func(lambda model,iter: model[iter][1] == '')

         cell = gtk.CellRendererPixbuf()
         col = gtk.TreeViewColumn('', cell, pixbuf=0)
         self.service_treeview.append_column(col)
         cell = gtk.CellRendererText()
         col = gtk.TreeViewColumn('', cell, text=1)
         self.service_treeview.append_column(col)

         for label, icon_name in SERVICES:
            pixbuf = self.icon_theme.load_icon(icon_name,
               gtk.ICON_SIZE_MENU, gtk.ICON_LOOKUP_USE_BUILTIN)
            store.append([pixbuf, label])
         store.append([None,''])
         tags = self.tracker.keywords.GetList('Files')
         for tag,count in tags.items():
            store.append([None, tag])
      
         selection = self.service_treeview.get_selection()
         selection.select_iter(store.get_iter_first())
         selection.connect('changed', self.on_service_selection_changed)

         sw = gtk.ScrolledWindow()
         sw.set_policy(gtk.POLICY_NEVER, gtk.POLICY_AUTOMATIC)
         sw.set_shadow_type(gtk.SHADOW_IN)
         sw.add(self.service_treeview)
         hbox.pack_start(sw, expand=False, fill=True)
         
      sw = gtk.ScrolledWindow()
      sw.set_policy(gtk.POLICY_NEVER, gtk.POLICY_ALWAYS)
      sw.set_shadow_type(gtk.SHADOW_IN)

      if self.layout in (1,2,3,):
         self.icon_view = gtk.IconView()
         store = gtk.ListStore(gtk.gdk.Pixbuf, str, str)
         self.icon_view.set_model(store)
         self.icon_view.set_pixbuf_column(0)
         self.icon_view.set_text_column(1)
         sw.add(self.icon_view)
      elif self.layout == 4:
         self.results_tree = gtk.TreeView()
         store = gtk.TreeStore(gtk.gdk.Pixbuf, str, str)
         self.results_tree.set_model(store)
         self.results_tree.set_headers_visible(False)

         cell = gtk.CellRendererPixbuf()
         col = gtk.TreeViewColumn('', cell, pixbuf=0)
         self.results_tree.append_column(col)
         cell = gtk.CellRendererText()
         col = gtk.TreeViewColumn('', cell, text=1)
         self.results_tree.append_column(col)

         self._fill_in_services(store)
         sw.add(self.results_tree)
         sw.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)

      if self.layout == 3:
         self.notebook = gtk.Notebook()
         label = gtk.Label('Files')
         self.notebook.append_page(sw, label)
         main_vbox.pack_start(self.notebook, expand=True, fill=True)
      else:
         self.result_label = gtk.Label('')
         hb = gtk.HBox()
         hb.set_border_width(6)
         hb.pack_start(self.result_label, expand=False, fill=False)
         vb = gtk.VBox()
         vb.pack_start(hb, expand=False, fill=False)
         vb.pack_start(sw, expand=True, fill=True)
         hbox.pack_start(vb, expand=True, fill=True)
         main_vbox.pack_start(hbox, expand=True, fill=True)

      if self.layout != 4:
         hbox = gtk.HBox()
         hbox.set_spacing(6)

         self.last_button = gtk.Button(stock='gtk-goto-last')
         self.last_button.set_sensitive(False)
         hbox.pack_end(self.last_button, expand=False, fill=False)

         self.next_button = gtk.Button(stock='gtk-go-forward')
         self.next_button.get_children()[0].get_children()[0].get_children()[1].set_text('Next')
         self.next_button.set_sensitive(False)
         hbox.pack_end(self.next_button, expand=False, fill=False)

         image = gtk.image_new_from_stock('gtk-go-back', gtk.ICON_SIZE_BUTTON)
         self.previous_button = gtk.Button()
         self.previous_button.add(image)
         self.previous_button.set_sensitive(False)
         hbox.pack_end(self.previous_button, expand=False, fill=False)
      
         image = gtk.image_new_from_stock('gtk-goto-first', gtk.ICON_SIZE_BUTTON)
         self.first_button = gtk.Button()
         self.first_button.add(image)
         self.first_button.set_sensitive(False)
         self.first_button.set_data('offset', 0)
         hbox.pack_end(self.first_button, expand=False, fill=False)
      
         main_vbox.pack_start(hbox, expand=False, fill=False)

      self.bottom_pane = gtk.HBox()
      self.bottom_pane_content = gtk.HBox()
      self.bottom_pane.pack_start(self.bottom_pane_content, expand=True, fill=True)

      self.hide_bottom_pane_button = gtk.Button()
      image = gtk.image_new_from_stock('gtk-close', gtk.ICON_SIZE_MENU)
      self.hide_bottom_pane_button.add(image)
      self.hide_bottom_pane_button.set_relief(gtk.RELIEF_NONE)
      vbox = gtk.VBox()
      vbox.pack_start(self.hide_bottom_pane_button, expand=False, fill=False)
      self.bottom_pane.pack_start(vbox, expand=False, fill=False)

      vbox = gtk.VBox()
      vbox.pack_start(main_vbox, expand=True, fill=True)
      vbox.pack_start(self.bottom_pane, expand=False, fill=True)
      self.statusbar = gtk.Statusbar()
      vbox.pack_start(self.statusbar, expand=False, fill=False)
      
      self.window.add(vbox)

      self.search_entry.connect('activate', lambda e: self.search_button.emit('clicked'))
      self.search_button.connect('clicked', self.get_search_stats)
      if self.layout == 3:
         self.search_button.connect('clicked', self.build_service_tabs)

      if self.layout == 4:
         self.search_button.connect('clicked', self.on_complete_search)
         self.results_tree.get_selection().connect('changed', self.on_result_selected)
      else:
         self.icon_view.connect('selection-changed', self.on_result_selected)
         self.search_button.connect('clicked', self.on_search)
         self.first_button.connect('clicked', self.on_search)
         self.next_button.connect('clicked', self.on_search)
         self.previous_button.connect('clicked', self.on_search)
         self.last_button.connect('clicked', self.on_search)
      self.hide_bottom_pane_button.connect('clicked', lambda *e: self.bottom_pane.hide())
      self.window.connect('destroy', gtk.main_quit)

      self.window.resize(640, 480)
      self.window.show_all()
      self.result_label.hide()

   def get_search_stats(self, button):
      self.search_stats = { }
      done = False
      offset = 0
      query = self.search_entry.get_text()
      while not done:
         if query.startswith('tag:'):
            results = self.tracker.keywords.Search(-1, 'Files', [query[4:]], offset, 512)
         else:
            results = self.tracker.search.Text(-1, 'Files', query, offset, 512, False)
         for r in results:
            service = self.tracker.files.GetServiceType(r)
            self.search_stats.setdefault(service, 0)
            self.search_stats[service] += 1
         offset += len(results)
         done = (len(results) < 512)
      self.search_stats['Files'] = offset
      self.last_button.set_data('offset', offset - offset % self.max_results)
      self.last_button.set_sensitive(True)
      print self.search_stats

   def on_search(self, button):
      query = self.search_entry.get_text()
      offset = button.get_data('offset')
      if self.layout == 1:
         service = SERVICES[self.service_combobox.get_active()][0]
      elif self.layout == 2:
         store, iter = self.service_treeview.get_selection().get_selected()
         service = store[iter][1]
      elif self.layout == 3:
         service = self.notebook.get_tab_label(self.icon_view.get_parent()).get_text()

      if query.startswith('tag:'):
         results = self.tracker.keywords.Search(-1, service,
                              [ query[4:] ], offset, self.max_results + 1)
      else:
         results = self.tracker.search.Text(-1, service,
                              query, offset, self.max_results + 1, False)
      self.result_label.set_markup('Showing results <b>%d</b> - <b>%d</b> of <b>%d</b>.'
                % (offset + 1,
                  offset + min(len(results), self.max_results),
                  self.search_stats[service]))
      self.result_label.show()

      if self.layout in (1,2,3,):
         store = self.icon_view.get_model()
         store.clear()
         for r in results[:self.max_results]:
            basename = os.path.basename(r)
            pixbuf = self._get_file_thumbnail_pixbuf(r) or self._get_mime_thumbnail(r)
            store.append([ pixbuf, basename, r ])
         self.icon_view.get_parent().get_vscrollbar().get_adjustment().value = 0

      self.first_button.set_sensitive(True)
      if offset > 0:
         self.previous_button.set_sensitive(True)
         self.previous_button.set_data('offset', offset - self.max_results)
      else:
         self.previous_button.set_sensitive(False)

      if len(results) == self.max_results + 1:
         self.next_button.set_sensitive(True)
         self.next_button.set_data('offset', offset + self.max_results)
      else:
         self.next_button.set_sensitive(False)

   def on_complete_search(self, button):
      query = self.search_entry.get_text()
      store = self.results_tree.get_model()
      store.clear()
      self._fill_in_services(store)
      iter = store.get_iter_first()
      while iter:
         service = store[iter][1]
         done = False
         offset = 0
         while not done:
            if query.startswith('tag:'):
               results = self.tracker.keywords.Search(-1, service,
                              [ query[4:] ], offset, self.max_results + 1)
            else:
               results = self.tracker.search.Text(-1, service, query, offset, 256, False)
            offset += len(results)
            for r in results:
               pixbuf = self._get_file_thumbnail_pixbuf(r) or self._get_mime_thumbnail(r)
               h = pixbuf.get_height()
               w = pixbuf.get_width()
               scale = max(h,w)
               h = int(h * 24. / scale)
               w = int(w * 24. / scale)
               pixbuf = pixbuf.scale_simple(w, h, gtk.gdk.INTERP_BILINEAR)
               store.append(iter, [pixbuf, r, r])
            done = (len(results) < 256)
         iter = store.iter_next(iter)

   def on_service_selection_changed(self, selection):
      self.on_search(self.search_button)
      
   def _get_file_thumbnail_pixbuf(self, f):
      uri = 'file://' + urllib.pathname2url(f)
      thumb = md5.new()
      thumb.update(uri)
      thumb = os.path.expanduser('~/.thumbnails/normal/%s.png' % thumb.hexdigest())
      try:
         return gtk.gdk.pixbuf_new_from_file(thumb)
      except:
         return None

   def _get_mime_thumbnail(self, f):
      return self.icon_theme.load_icon('image-loading', 32, gtk.ICON_LOOKUP_USE_BUILTIN)

   def _fill_in_services(self, store):
      for label, icon_name in SERVICES:
         pixbuf = self.icon_theme.load_icon(icon_name,
            gtk.ICON_SIZE_MENU, gtk.ICON_LOOKUP_USE_BUILTIN)
         store.append(None, [pixbuf, label, ''])

   def build_service_tabs(self, button):
      query = self.search_entry.get_text()
      services = set()

      done = False
      offset = 0
      while not done:
         results = self.tracker.search.Text(-1, 'Files', query, offset, 256, False)
         print len(results),'results.',results
         for r in results:
            print r, self.tracker.files.GetServiceType(r)
            #services.add(self.tracker.files.GetServiceType(r))
         offset += len(results)
         done = (len(results) < 256)
         print 'done:',done
      print services

   def on_result_selected(self, arg):
      self._clear_container(self.bottom_pane_content)
      if isinstance(arg, gtk.IconView):
         store = arg.get_model()
         selected = arg.get_selected_items()[0]
         path = store[selected][2]
      else:
         model, iter = arg.get_selected()
         path = model[iter][2]
      if not path:
         return

      service = self.tracker.files.GetServiceType(path)
      self.statusbar.push(0, '%s [%s]' % (path,service))

      main_hbox = gtk.HBox()  # 4 columns
      main_hbox.set_homogeneous(True)

      # Column #1: Thumbnail
      # TODO

      # Column #2: General File Properties
      keys = DISPLAY_METADATA['Files']
      metadata = self.tracker.metadata.Get('Files', path, keys)
      table = gtk.Table(len(keys) + 2, 2, False)
      table.set_col_spacings(6)
      table.set_row_spacings(6)
      label = gtk.Label('')
      label.set_markup('<span size="x-large">%s</span>' % metadata[0])
      label.set_selectable(True)
      label.set_ellipsize(pango.ELLIPSIZE_END)
      hbox = gtk.HBox()
      hbox.pack_start(label, expand=True, fill=True)
      table.attach(hbox, 0, 2, 0, 1, gtk.FILL | gtk.EXPAND, gtk.FILL)
      for n,(k,m) in enumerate(zip(keys,metadata)[1:]):
         # Build Key
         label = gtk.Label('')
         if k in METADATA_LABELS:
            label.set_markup('<b>%s:</b>' % METADATA_LABELS[k])
         else:
            label.set_markup('<b>%s:</b>' % k.split('.')[1].title())
         hbox = gtk.HBox()
         hbox.pack_end(label, expand=False, fill=False)
         table.attach(hbox, 0, 1, n+1, n+2, gtk.FILL, gtk.FILL)

         # Build Value
         hbox = gtk.HBox()
         if k in METADATA_FORMATTERS:
            METADATA_FORMATTERS[k](hbox, m)
         else:
            label = gtk.Label(m)
            label.set_selectable(True)
            label.set_ellipsize(pango.ELLIPSIZE_END)
            hbox.pack_start(label, fill=True, expand=True)
         table.attach(hbox, 1, 2, n+1, n+2, gtk.FILL | gtk.EXPAND, gtk.FILL)

      # Tag row widgets
      label = gtk.Label('')
      label.set_markup('<b>Tags:</b>')
      hbox = gtk.HBox()
      hbox.pack_end(label, expand=False, fill=False)
      table.attach(hbox, 0, 1, n+2, n+3, gtk.FILL, gtk.FILL)

      hbox1 = gtk.HBox()
      add_button = gtk.Button()
      image = gtk.image_new_from_stock('gtk-add', gtk.ICON_SIZE_BUTTON)
      add_button.add(image)
      add_button.set_relief(gtk.RELIEF_NONE)
      hbox1.pack_start(add_button, expand=False, fill=False)      

      tags = self.tracker.keywords.Get('Files', path)
      first = True
      for tag in tags:
         if not first:
            hbox1.pack_start(gtk.Label(','), expand=False, fill=False)
         label = gtk.Label()
         label.set_markup('<span foreground="blue"><u>%s</u></span>' % tag)
         btn = gtk.Button()
         btn.add(label)
         btn.set_relief(gtk.RELIEF_NONE)
         btn.connect('clicked', self.on_tag_selected)
         hbox1.pack_start(btn, expand=False, fill=False)
         first = False

      hbox2 = gtk.HBox()
      completion = gtk.EntryCompletion()
      completion.set_model(self._create_tag_model())
      completion.set_text_column(0)
      tag_entry = gtk.Entry()
      tag_entry.set_completion(completion)
      hbox2.pack_start(tag_entry, expand=False, fill=False)

      accept_button = gtk.Button()
      image = gtk.image_new_from_stock('gtk-apply', gtk.ICON_SIZE_BUTTON)
      accept_button.add(image)
      accept_button.set_relief(gtk.RELIEF_NONE)
      hbox2.pack_start(accept_button, expand=False, fill=False)
      
      cancel_button = gtk.Button()
      image = gtk.image_new_from_stock('gtk-cancel', gtk.ICON_SIZE_BUTTON)
      cancel_button.add(image)
      cancel_button.set_relief(gtk.RELIEF_NONE)
      hbox2.pack_start(cancel_button, expand=False, fill=False)
      
      hbox = gtk.HBox()
      hbox.pack_start(hbox1, expand=True, fill=True)
      hbox.pack_start(hbox2, expand=True, fill=True)
      table.attach(hbox, 1, 2, n+2, n+3, gtk.FILL, gtk.FILL)
      main_hbox.pack_start(table, expand=True, fill=True)

      # Tag widget signals
      tag_entry.connect('activate', lambda e: accept_button.emit('clicked'))
      add_button.connect('clicked', lambda b: (hbox1.hide(), hbox2.show(), tag_entry.grab_focus()))
      accept_button.connect('clicked', self.on_accept_tag_add, hbox1, hbox2, path, arg)
      cancel_button.connect('clicked', lambda b: (hbox1.show(), hbox2.hide(), tag_entry.set_text('')))

      # Column #3: Type specific metadata
      if service in DISPLAY_METADATA and DISPLAY_METADATA[service]:
         keys = DISPLAY_METADATA[service]
         metadata = self.tracker.metadata.Get('Files', path, keys)

         table = gtk.Table(len(keys), 2, False)
         table.set_col_spacings(6)
         table.set_row_spacings(6)
         for n,(k,m) in enumerate(zip(keys,metadata)):
            # Build Key
            label = gtk.Label('')
            if k in METADATA_LABELS:
               label.set_markup('<b>%s:</b>' % METADATA_LABELS[k])
            else:
               label.set_markup('<b>%s:</b>' % k.split('.')[1].title())
            hbox = gtk.HBox()
            hbox.pack_end(label, expand=False, fill=False)
            table.attach(hbox, 0, 1, n, n+1, gtk.FILL, gtk.FILL)

            # Build Value
            hbox = gtk.HBox()
            if k in METADATA_FORMATTERS:
               METADATA_FORMATTERS[k](hbox, m)
            else:
               label = gtk.Label(m)
               label.set_selectable(True)
               label.set_ellipsize(pango.ELLIPSIZE_END)
               hbox.pack_start(label, fill=True, expand=True)
            table.attach(hbox, 1, 2, n, n+1, gtk.FILL | gtk.EXPAND, gtk.FILL)

         main_hbox.pack_start(table, expand=True, fill=True)

      # Column #4: Sample contents
      query = self.search_entry.get_text()
      if not query.startswith('tag:'):
         contents = metadata = self.tracker.metadata.Get('Files', path, ['file.content'])
         if contents:
            contents = contents[0].replace('\n', '\\n')
            idx = contents.lower().find(query.lower())
            if idx > -1:
               start = max(0, idx - 75)
               end = min(len(contents), start + 150)
               #text = gtk.TextView()
               #text.get_buffer().set_text(contents[start:end])
#                                   .replace('<', '&lt;')
#                                   .replace('>', '&gt;')
#                                   .replace(query, '<b>%s</b>' % query))
               #text.set_wrap_mode(gtk.WRAP_WORD)
               label = gtk.Label(contents[start:end])
               label.set_line_wrap(True)
               vbox = gtk.VBox()
               vbox.pack_start(label, expand=False, fill=False)
               frame = gtk.Frame('Contents')
               frame.add(vbox)
               main_hbox.pack_start(frame, expand=True, fill=True)

      main_hbox.set_spacing(12)
      main_hbox.show_all()
      hbox2.hide()
      self.bottom_pane_content.pack_start(main_hbox, expand=True, fill=True)

   def _clear_container(self, widget, parent=None):
      if isinstance(widget, gtk.Container):
         widget.foreach(self._clear_container, widget)
      if parent:
         parent.remove(widget)

   def _create_tag_model(self):
      store = gtk.ListStore(str)
      tags = self.tracker.keywords.GetList('Files')
      for tag,count in tags.items():
         store.append([tag])
      return store
   
   def on_tag_selected(self, button):
      tag = button.get_children()[0].get_text()
      self.search_entry.set_text('tag:%s' % tag)
      self.search_button.emit('clicked')

   def on_accept_tag_add(self, accept_button, hbox1, hbox2, path, selection):
      tag = hbox2.get_children()[0].get_text()
      self.tracker.keywords.Add('Files', path, [ tag ])
      self.on_result_selected(selection)


gui = TrackerGUI()
gtk.main()