ui_panels.py

            op.category = c['slug']
            # TODO enable subcategories, now not working due to some bug on server probably
            if len(c['children']) > 0 and c['assetCount'] > 15:
                # row = row.split()
                op = row.operator('view3d.blenderkit_set_category', text='>>')
                op.asset_type = ui_props.asset_type
                op.category = c['slug']
                # for c1 in c['children']:
                #     if c1['assetCount']>0:
                #         row = col.row()
                #         split = row.split(percentage=.2)
                #         row = split.split()
                #         row = split.split()
                #         ctext = '%s (%i)' % (c1['name'], c1['assetCount'])
                #         op = row.operator('view3d.blenderkit_search', text=ctext)
                #         op.category = c1['slug']


class VIEW3D_PT_blenderkit_downloads(Panel):
    bl_category = "BlenderKit"
    bl_idname = "VIEW3D_PT_blenderkit_downloads"
    bl_space_type = 'VIEW_3D'
    bl_region_type = 'UI'
    bl_label = "Downloads"

    @classmethod
    def poll(cls, context):
        return len(download.download_threads) > 0

    def draw(self, context):
        layout = self.layout
        for threaddata in download.download_threads:
            tcom = threaddata[2]
            asset_data = threaddata[1]
            row = layout.row()
            row.label(text=asset_data['name'])
            row.label(text=str(int(tcom.progress)) + ' %')
            row.operator('scene.blenderkit_download_kill', text='', icon='CANCEL')
            if tcom.passargs.get('retry_counter', 0) > 0:
                row = layout.row()
                row.label(text='failed. retrying ... ', icon='ERROR')
                row.label(text=str(tcom.passargs["retry_counter"]))

                layout.separator()


def header_search_draw(self, context):
    '''Top bar menu in 3d view'''
    preferences = bpy.context.preferences.addons['blenderkit'].preferences
    if preferences.search_in_header:
        layout = self.layout
        s = bpy.context.scene
        ui_props = s.blenderkitUI
        if ui_props.asset_type == 'MODEL':
            props = s.blenderkit_models
        if ui_props.asset_type == 'MATERIAL':
            props = s.blenderkit_mat
        if ui_props.asset_type == 'BRUSH':
            props = s.blenderkit_brush

        # the center snap menu is in edit and object mode if tool settings are off.
        if context.space_data.show_region_tool_header == True or context.mode[:4] not in ('EDIT', 'OBJE'):
            layout.separator_spacer()
        layout.prop(ui_props, "asset_type", text='', icon='URL')
        layout.prop(props, "search_keywords", text="", icon='VIEWZOOM')
        draw_assetbar_show_hide(layout, props)


# We can store multiple preview collections here,
# however in this example we only store "main"
preview_collections = {}
classess = (
    SetCategoryOperator,

    VIEW3D_PT_blenderkit_profile,
    VIEW3D_PT_blenderkit_login,
    VIEW3D_PT_blenderkit_unified,
    VIEW3D_PT_blenderkit_model_properties,
    VIEW3D_PT_blenderkit_downloads,
    OBJECT_MT_blenderkit_asset_menu,
    UrlPopupDialog
)


def register_ui_panels():
    for c in classess:
        bpy.utils.register_class(c)
    bpy.types.VIEW3D_MT_editor_menus.append(header_search_draw)


def unregister_ui_panels():
    for c in classess:
        bpy.utils.unregister_class(c)
    bpy.types.VIEW3D_MT_editor_menus.remove(header_search_draw)