prop_search on bpy.props.CollectionProperty

gistfile1.py

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#
#  This program is free software; you can redistribute it and/or
#  modify it under the terms of the GNU General Public License
#  as published by the Free Software Foundation; either version 2
#  of the License, or (at your option) any later version.
#
#  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.
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#  along with this program; if not, write to the Free Software Foundation,
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# ##### END GPL LICENSE BLOCK #####

import bpy
from bpy.props import EnumProperty
from sverchok.node_tree import SverchCustomTreeNode
from sverchok.data_structure import (updateNode, enum_item as e)


class SvGetDataObjectNode(bpy.types.Node, SverchCustomTreeNode):
    ''' Get Object Props '''
    bl_idname = 'SvGetDataObjectNode'
    bl_label = 'Object ID Get'
    bl_icon = 'OUTLINER_OB_EMPTY'

    M = [
        'actions','brushes','filepath','grease_pencil','groups',
        'images','libraries','linestyles','masks','materials',
        'movieclips','node_groups','particles','scenes','screens','shape_keys',
        'sounds','speakers','texts','textures','worlds','objects'
    ]

    T = [
        'MESH','CURVE','SURFACE','META','FONT','ARMATURE','LATTICE',
        'EMPTY','CAMERA','LAMP','SPEAKER'
    ]

    def pre_updateNode(self, context):
        # empty collection first
        self.collection_name.clear()

        # now fill it up again
        if self.Modes == 'objects':
            for o in bpy.data.objects:
                if o.type == self.Types:  # o.type in {'FONT', 'META', 'CURVE', 'SURFACE', 'MESH'}
                    self.collection_name.add().name = o.name


        updateNode(self, context)


    Modes = EnumProperty(name="getmodes", default="objects", items=e(M), update=pre_updateNode)
    Types = EnumProperty(name="getmodes", default="MESH", items=e(T), update=pre_updateNode)

    obj_name = bpy.props.StringProperty(update=updateNode)
    collection_name = bpy.props.CollectionProperty(type=bpy.types.PropertyGroup)


    def draw_buttons(self, context, layout):
        row = layout.row(align=True)
        layout.prop(self, "Modes", "mode")
        if self.Modes == 'objects':
            layout.prop(self, "Types", "type")
            layout.prop_search(self, 'obj_name', self, 'collection_name', icon='OBJECT_DATA')

    def sv_init(self, context):
        self.outputs.new('StringsSocket', "Objects")

    def process(self):
        sob = self.outputs['Objects']
        if not sob.is_linked:
            return
        L = getattr(bpy.data,self.Modes)

        if self.obj_name:
            sob.sv_set([bpy.data.objects[self.obj_name]])
        elif self.Modes != 'objects':
            sob.sv_set(L[:])
        else:
            sob.sv_set([i for i in L if i.type == self.Types])


def register():
    bpy.utils.register_class(SvGetDataObjectNode)

def unregister():
    bpy.utils.unregister_class(SvGetDataObjectNode)