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import sys
import abc
import logging
import gradio as gr
from gradio.blocks import Block, BlockContext
if logging.getLogger().hasHandlers():
log = logging.getLogger("sd")
else:
class Log:
info = print
debug = print
warning: print
def error(*args, **kwargs):
print(*args, **kwargs, file=sys.stderr)
log = Log()
class Singleton(abc.ABCMeta, type):
"""
Singleton metaclass for ensuring only one instance of a class.
"""
_instances = {}
def __call__(cls, *args, **kwargs):
"""Call method for the singleton metaclass."""
if cls not in cls._instances:
cls._instances[cls] = super(Singleton, cls).__call__(*args, **kwargs)
return cls._instances[cls]
def compare_components_with_ids(components: list[Block], ids: list[int]):
return len(components) == len(ids) and all(
component._id == _id for component, _id in zip(components, ids)
)
def get_component_by_elem_id(root: Block, elem_id: str):
if root.elem_id == elem_id:
return root
elem = None
if isinstance(root, BlockContext):
for block in root.children:
elem = get_component_by_elem_id(block, elem_id)
if elem is not None:
break
return elem
def get_components_by_ids(root: Block, ids: list[int]):
components: list[Block] = []
if root._id in ids:
components.append(root)
ids = [_id for _id in ids if _id != root._id]
if isinstance(root, BlockContext):
for block in root.children:
components.extend(get_components_by_ids(block, ids))
return components
def detect_control_net(root: gr.Blocks, submit: gr.Button):
UiControlNetUnit = None
dependencies: list[dict] = [
x
for x in root.dependencies
if x["trigger"] == "click" and submit._id in x["targets"]
]
for d in dependencies:
if len(d["outputs"]) == 1:
outputs = get_components_by_ids(root, d["outputs"])
output = outputs[0]
if (
isinstance(output, gr.State)
and type(output.value).__name__ == "UiControlNetUnit"
):
UiControlNetUnit = type(output.value)
return UiControlNetUnit
def get_dict_attribute(dict_inst: dict, name_string: str, default=None):
nested_keys = name_string.split(".")
value = dict_inst
for key in nested_keys:
value = value.get(key, None)
if value is None:
return default
return value
def set_dict_attribute(dict_inst: dict, name_string: str, value):
"""
Set an attribute to a dictionary using dot notation.
If the attribute does not already exist, it will create a nested dictionary.
Parameters:
- dict_inst: the dictionary instance to set the attribute
- name_string: the attribute name in dot notation (ex: 'attribute.name')
- value: the value to set for the attribute
Returns:
None
"""
# Split the attribute names by dot
name_list = name_string.split(".")
# Traverse the dictionary and create a nested dictionary if necessary
current_dict = dict_inst
for name in name_list[:-1]:
if name not in current_dict:
current_dict[name] = {}
current_dict = current_dict[name]
# Set the final attribute to its value
current_dict[name_list[-1]] = value
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