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diff --git a/bitbake/lib/bb/ui/crumbs/hig/layerselectiondialog.py b/bitbake/lib/bb/ui/crumbs/hig/layerselectiondialog.py
new file mode 100644
index 0000000000..52d57b6738
--- /dev/null
+++ b/bitbake/lib/bb/ui/crumbs/hig/layerselectiondialog.py
@@ -0,0 +1,298 @@
+#
+# BitBake Graphical GTK User Interface
+#
+# Copyright (C) 2011-2012   Intel Corporation
+#
+# Authored by Joshua Lock <josh@linux.intel.com>
+# Authored by Dongxiao Xu <dongxiao.xu@intel.com>
+# Authored by Shane Wang <shane.wang@intel.com>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+import gtk
+import gobject
+import os
+import tempfile
+from bb.ui.crumbs.hobwidget import hic, HobButton, HobAltButton
+from bb.ui.crumbs.hig.crumbsdialog import CrumbsDialog
+from bb.ui.crumbs.hig.crumbsmessagedialog import CrumbsMessageDialog
+
+"""
+The following are convenience classes for implementing GNOME HIG compliant
+BitBake GUI's
+In summary: spacing = 12px, border-width = 6px
+"""
+
+class CellRendererPixbufActivatable(gtk.CellRendererPixbuf):
+    """
+    A custom CellRenderer implementation which is activatable
+    so that we can handle user clicks
+    """
+    __gsignals__    = { 'clicked' : (gobject.SIGNAL_RUN_LAST,
+                                     gobject.TYPE_NONE,
+                                     (gobject.TYPE_STRING,)), }
+
+    def __init__(self):
+        gtk.CellRendererPixbuf.__init__(self)
+        self.set_property('mode', gtk.CELL_RENDERER_MODE_ACTIVATABLE)
+        self.set_property('follow-state', True)
+
+    """
+    Respond to a user click on a cell
+    """
+    def do_activate(self, even, widget, path, background_area, cell_area, flags):
+        self.emit('clicked', path)
+
+#
+# LayerSelectionDialog
+#
+class LayerSelectionDialog (CrumbsDialog):
+
+    TARGETS = [
+        ("MY_TREE_MODEL_ROW", gtk.TARGET_SAME_WIDGET, 0),
+        ("text/plain", 0, 1),
+        ("TEXT", 0, 2),
+        ("STRING", 0, 3),
+        ]
+
+    def gen_label_widget(self, content):
+        label = gtk.Label()
+        label.set_alignment(0, 0)
+        label.set_markup(content)
+        label.show()
+        return label
+
+    def layer_widget_toggled_cb(self, cell, path, layer_store):
+        name = layer_store[path][0]
+        toggle = not layer_store[path][1]
+        layer_store[path][1] = toggle
+
+    def layer_widget_add_clicked_cb(self, action, layer_store, parent):
+        dialog = gtk.FileChooserDialog("Add new layer", parent,
+                                       gtk.FILE_CHOOSER_ACTION_SELECT_FOLDER)
+        button = dialog.add_button("Cancel", gtk.RESPONSE_NO)
+        HobAltButton.style_button(button)
+        button = dialog.add_button("Open", gtk.RESPONSE_YES)
+        HobButton.style_button(button)
+        label = gtk.Label("Select the layer you wish to add")
+        label.show()
+        dialog.set_extra_widget(label)
+        response = dialog.run()
+        path = dialog.get_filename()
+        dialog.destroy()
+
+        lbl = "<b>Error</b>"
+        msg = "Unable to load layer <i>%s</i> because " % path
+        if response == gtk.RESPONSE_YES:
+            import os
+            import os.path
+            layers = []
+            it = layer_store.get_iter_first()
+            while it:
+                layers.append(layer_store.get_value(it, 0))
+                it = layer_store.iter_next(it)
+
+            if not path:
+                msg += "it is an invalid path."
+            elif not os.path.exists(path+"/conf/layer.conf"):
+                msg += "there is no layer.conf inside the directory."
+            elif path in layers:
+                msg += "it is already in loaded layers."
+            else:
+                layer_store.append([path])
+                return
+            dialog = CrumbsMessageDialog(parent, lbl, gtk.MESSAGE_ERROR, msg)
+            dialog.add_button(gtk.STOCK_CLOSE, gtk.RESPONSE_OK)
+            response = dialog.run()
+            dialog.destroy()
+
+    def layer_widget_del_clicked_cb(self, action, tree_selection, layer_store):
+        model, iter = tree_selection.get_selected()
+        if iter:
+            layer_store.remove(iter)
+
+
+    def gen_layer_widget(self, layers, layers_avail, window, tooltip=""):
+        hbox = gtk.HBox(False, 6)
+
+        layer_tv = gtk.TreeView()
+        layer_tv.set_rules_hint(True)
+        layer_tv.set_headers_visible(False)
+        tree_selection = layer_tv.get_selection()
+        tree_selection.set_mode(gtk.SELECTION_SINGLE)
+
+        # Allow enable drag and drop of rows including row move
+        dnd_internal_target = ''
+        dnd_targets = [(dnd_internal_target, gtk.TARGET_SAME_WIDGET, 0)]
+        layer_tv.enable_model_drag_source( gtk.gdk.BUTTON1_MASK,
+            dnd_targets,
+            gtk.gdk.ACTION_MOVE)
+        layer_tv.enable_model_drag_dest(dnd_targets,
+            gtk.gdk.ACTION_MOVE)
+        layer_tv.connect("drag_data_get", self.drag_data_get_cb)
+        layer_tv.connect("drag_data_received", self.drag_data_received_cb)
+
+        col0= gtk.TreeViewColumn('Path')
+        cell0 = gtk.CellRendererText()
+        cell0.set_padding(5,2)
+        col0.pack_start(cell0, True)
+        col0.set_cell_data_func(cell0, self.draw_layer_path_cb)
+        layer_tv.append_column(col0)
+
+        scroll = gtk.ScrolledWindow()
+        scroll.set_policy(gtk.POLICY_NEVER, gtk.POLICY_AUTOMATIC)
+        scroll.set_shadow_type(gtk.SHADOW_IN)
+        scroll.add(layer_tv)
+
+        table_layer = gtk.Table(2, 10, False)
+        hbox.pack_start(table_layer, expand=True, fill=True)
+
+        table_layer.attach(scroll, 0, 10, 0, 1)
+
+        layer_store = gtk.ListStore(gobject.TYPE_STRING)
+        for layer in layers:
+            layer_store.append([layer])
+
+        col1 = gtk.TreeViewColumn('Enabled')
+        layer_tv.append_column(col1)
+
+        cell1 = CellRendererPixbufActivatable()
+        cell1.set_fixed_size(-1,35)
+        cell1.connect("clicked", self.del_cell_clicked_cb, layer_store)
+        col1.pack_start(cell1, True)
+        col1.set_cell_data_func(cell1, self.draw_delete_button_cb, layer_tv)
+
+        add_button = gtk.Button()
+        add_button.set_relief(gtk.RELIEF_NONE)
+        box = gtk.HBox(False, 6)
+        box.show()
+        add_button.add(box)
+        add_button.connect("enter-notify-event", self.add_hover_cb)
+        add_button.connect("leave-notify-event", self.add_leave_cb)
+        self.im = gtk.Image()
+        self.im.set_from_file(hic.ICON_INDI_ADD_FILE)
+        self.im.show()
+        box.pack_start(self.im, expand=False, fill=False, padding=6)
+        lbl = gtk.Label("Add layer")
+        lbl.set_alignment(0.0, 0.5)
+        lbl.show()
+        box.pack_start(lbl, expand=True, fill=True, padding=6)
+        add_button.connect("clicked", self.layer_widget_add_clicked_cb, layer_store, window)
+        table_layer.attach(add_button, 0, 10, 1, 2, gtk.EXPAND | gtk.FILL, 0, 0, 6)
+        layer_tv.set_model(layer_store)
+
+        hbox.show_all()
+
+        return hbox, layer_store
+
+    def drag_data_get_cb(self, treeview, context, selection, target_id, etime):
+        treeselection = treeview.get_selection()
+        model, iter = treeselection.get_selected()
+        data = model.get_value(iter, 0)
+        selection.set(selection.target, 8, data)
+
+    def drag_data_received_cb(self, treeview, context, x, y, selection, info, etime):
+        model = treeview.get_model()
+        data = selection.data
+        drop_info = treeview.get_dest_row_at_pos(x, y)
+        if drop_info:
+            path, position = drop_info
+            iter = model.get_iter(path)
+            if (position == gtk.TREE_VIEW_DROP_BEFORE or position == gtk.TREE_VIEW_DROP_INTO_OR_BEFORE):
+                model.insert_before(iter, [data])
+            else:
+                model.insert_after(iter, [data])
+        else:
+            model.append([data])
+        if context.action == gtk.gdk.ACTION_MOVE:
+            context.finish(True, True, etime)
+        return
+
+    def add_hover_cb(self, button, event):
+        self.im.set_from_file(hic.ICON_INDI_ADD_HOVER_FILE)
+
+    def add_leave_cb(self, button, event):
+        self.im.set_from_file(hic.ICON_INDI_ADD_FILE)
+
+    def __init__(self, title, layers, layers_non_removable, all_layers, parent, flags, buttons=None):
+        super(LayerSelectionDialog, self).__init__(title, parent, flags, buttons)
+
+        # class members from other objects
+        self.layers = layers
+        self.layers_non_removable = layers_non_removable
+        self.all_layers = all_layers
+        self.layers_changed = False
+
+        # icon for remove button in TreeView
+        im = gtk.Image()
+        im.set_from_file(hic.ICON_INDI_REMOVE_FILE)
+        self.rem_icon = im.get_pixbuf()
+
+        # class members for internal use
+        self.layer_store = None
+
+        # create visual elements on the dialog
+        self.create_visual_elements()
+        self.connect("response", self.response_cb)
+
+    def create_visual_elements(self):
+        layer_widget, self.layer_store = self.gen_layer_widget(self.layers, self.all_layers, self, None)
+        layer_widget.set_size_request(450, 250)
+        self.vbox.pack_start(layer_widget, expand=True, fill=True)
+        self.show_all()
+
+    def response_cb(self, dialog, response_id):
+        model = self.layer_store
+        it = model.get_iter_first()
+        layers = []
+        while it:
+            layers.append(model.get_value(it, 0))
+            it = model.iter_next(it)
+
+        self.layers_changed = (self.layers != layers)
+        self.layers = layers
+
+    """
+    A custom cell_data_func to draw a delete 'button' in the TreeView for layers
+    other than the meta layer. The deletion of which is prevented so that the
+    user can't shoot themselves in the foot too badly.
+    """
+    def draw_delete_button_cb(self, col, cell, model, it, tv):
+        path =  model.get_value(it, 0)
+        if path in self.layers_non_removable:
+            cell.set_sensitive(False)
+            cell.set_property('pixbuf', None)
+            cell.set_property('mode', gtk.CELL_RENDERER_MODE_INERT)
+        else:
+            cell.set_property('pixbuf', self.rem_icon)
+            cell.set_sensitive(True)
+            cell.set_property('mode', gtk.CELL_RENDERER_MODE_ACTIVATABLE)
+
+        return True
+
+    """
+    A custom cell_data_func to write an extra message into the layer path cell
+    for the meta layer. We should inform the user that they can't remove it for
+    their own safety.
+    """
+    def draw_layer_path_cb(self, col, cell, model, it):
+        path = model.get_value(it, 0)
+        if path in self.layers_non_removable:
+            cell.set_property('markup', "<b>It cannot be removed</b>\n%s" % path)
+        else:
+            cell.set_property('text', path)
+
+    def del_cell_clicked_cb(self, cell, path, model):
+        it = model.get_iter_from_string(path)
+        model.remove(it)