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"""gr.Code() component"""
from __future__ import annotations
from pathlib import Path
from typing import Any, Callable, Literal
from gradio_client.documentation import document
from gradio.components.base import Component
from gradio.events import Events
@document("languages")
class Code(Component):
"""
Creates a code editor for viewing code (as an output component), or for entering and editing code (as an input component).
"""
languages = [
"python",
"markdown",
"json",
"html",
"css",
"javascript",
"typescript",
"yaml",
"dockerfile",
"shell",
"r",
"sql",
"sql-msSQL",
"sql-mySQL",
"sql-mariaDB",
"sql-sqlite",
"sql-cassandra",
"sql-plSQL",
"sql-hive",
"sql-pgSQL",
"sql-gql",
"sql-gpSQL",
"sql-sparkSQL",
"sql-esper",
None,
]
EVENTS = [
Events.change,
Events.input,
Events.focus,
Events.blur,
]
def __init__(
self,
value: str | Callable | tuple[str] | None = None,
language: Literal[
"python",
"markdown",
"json",
"html",
"css",
"javascript",
"typescript",
"yaml",
"dockerfile",
"shell",
"r",
"sql",
"sql-msSQL",
"sql-mySQL",
"sql-mariaDB",
"sql-sqlite",
"sql-cassandra",
"sql-plSQL",
"sql-hive",
"sql-pgSQL",
"sql-gql",
"sql-gpSQL",
"sql-sparkSQL",
"sql-esper",
]
| None = None,
*,
every: float | None = None,
lines: int = 5,
label: str | None = None,
interactive: bool | None = None,
show_label: bool | None = None,
container: bool = True,
scale: int | None = None,
min_width: int = 160,
visible: bool = True,
elem_id: str | None = None,
elem_classes: list[str] | str | None = None,
render: bool = True,
key: int | str | None = None,
):
"""
Parameters:
value: Default value to show in the code editor. If callable, the function will be called whenever the app loads to set the initial value of the component.
language: The language to display the code as. Supported languages listed in `gr.Code.languages`.
every: If `value` is a callable, run the function 'every' number of seconds while the client connection is open. Has no effect otherwise. The event can be accessed (e.g. to cancel it) via this component's .load_event attribute.
label: The label for this component. Appears above the component and is also used as the header if there are a table of examples for this component. If None and used in a `gr.Interface`, the label will be the name of the parameter this component is assigned to.
interactive: Whether user should be able to enter code or only view it.
show_label: if True, will display label.
container: If True, will place the component in a container - providing some extra padding around the border.
scale: relative size compared to adjacent Components. For example if Components A and B are in a Row, and A has scale=2, and B has scale=1, A will be twice as wide as B. Should be an integer. scale applies in Rows, and to top-level Components in Blocks where fill_height=True.
min_width: minimum pixel width, will wrap if not sufficient screen space to satisfy this value. If a certain scale value results in this Component being narrower than min_width, the min_width parameter will be respected first.
visible: If False, component will be hidden.
elem_id: An optional string that is assigned as the id of this component in the HTML DOM. Can be used for targeting CSS styles.
elem_classes: An optional list of strings that are assigned as the classes of this component in the HTML DOM. Can be used for targeting CSS styles.
render: If False, component will not render be rendered in the Blocks context. Should be used if the intention is to assign event listeners now but render the component later.
key: if assigned, will be used to assume identity across a re-render. Components that have the same key across a re-render will have their value preserved.
"""
if language not in Code.languages:
raise ValueError(f"Language {language} not supported.")
self.language = language
self.lines = lines
super().__init__(
label=label,
every=every,
interactive=interactive,
show_label=show_label,
container=container,
scale=scale,
min_width=min_width,
visible=visible,
elem_id=elem_id,
elem_classes=elem_classes,
render=render,
key=key,
value=value,
)
def preprocess(self, payload: str | None) -> str | None:
"""
Parameters:
payload: string corresponding to the code
Returns:
Passes the code entered as a `str`.
"""
return payload
def postprocess(self, value: tuple[str] | str | None) -> None | str:
"""
Parameters:
value: Expects a `str` of code or a single-element `tuple`: (filepath,) with the `str` path to a file containing the code.
Returns:
Returns the code as a `str`.
"""
if value is None:
return None
elif isinstance(value, tuple):
with open(value[0], encoding="utf-8") as file_data:
return file_data.read()
else:
return value.strip()
def api_info(self) -> dict[str, Any]:
return {"type": "string"}
def example_payload(self) -> Any:
return "print('Hello World')"
def example_value(self) -> Any:
return "print('Hello World')"
def process_example(self, value: str | tuple[str] | None) -> str | None:
if isinstance(value, tuple):
return Path(value[0]).name
return super().process_example(value)
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