gradio-motioncanvasplayer 0.0.2

This custom component for Gradio displays Motion Canvas projects in the browser. Motion Canvas is a library for generating animations, videos, or presentations via the Canvas API. All animations are defined by code - an excellent playground for AI agents. An exemplary demo for this component is available in this Huggingface Space: https://huggingface.co/spaces/prathje/gradio_motioncanvasplayer. The source code for the included project can be found at: https://github.com/prathje/gradio-motion-canvas-example.

---

tags: [gradio-custom-component, HTML, Motion Canvas, Animation, Player, custom-component-track] title: gradio_motioncanvasplayer short_description: Motion Canvas Player to render Motion Canvas projects colorFrom: blue colorTo: yellow sdk: gradio pinned: false app_file: space.py

gradio_motioncanvasplayer

This custom component for Gradio displays Motion Canvas projects in the browser. Motion Canvas is a library for generating animations, videos, or presentations via the Canvas API. All animations are defined by code - an excellent playground for AI agents. An exemplary demo for this component is available in this Huggingface Space: https://huggingface.co/spaces/prathje/gradio_motioncanvasplayer. The source code for the included project can be found at: https://github.com/prathje/gradio-motion-canvas-example.

Installation

pip install gradio_motioncanvasplayer

Usage

import gradio as gr
import os

from gradio_motioncanvasplayer import MotionCanvasPlayer

gr.set_static_paths(paths=[os.path.join(os.path.dirname(__file__), "public")])
project_local_path = os.path.join(os.path.dirname(__file__), "public/project-3.17.2.js")
project_api_path = "/gradio_api/file=" + project_local_path


demo = gr.Interface(
    lambda x:x,
    None,  # interactive version of your component, not relevant for this demo
    MotionCanvasPlayer(project_api_path, auto=True, quality=0.5, width=1920, height=1080, variables="{}"),  # static version of your component
    clear_btn=None

)

if __name__ == '__main__':
    demo.launch(server_name="0.0.0.0", server_port=7860)

MotionCanvasPlayer

Initialization

name	type	default	description
value	str | Callable | None	None	The MotionCanvasPlayer content to display. Only static MotionCanvasPlayer is rendered (e.g. no JavaScript. To render JavaScript, use the `js` or `head` parameters in the `Blocks` constructor). If a function is provided, the function will be called each time the app loads to set the initial value of this component.
label	str | I18nData | None	None	The label for this component. Is 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.
every	Timer | float | None	None	Continously calls `value` to recalculate it if `value` is a function (has no effect otherwise). Can provide a Timer whose tick resets `value`, or a float that provides the regular interval for the reset Timer.
inputs	Component | Sequence[Component] | set[Component] | None	None	Components that are used as inputs to calculate `value` if `value` is a function (has no effect otherwise). `value` is recalculated any time the inputs change.
show_label	bool	False	If True, the label will be displayed. If False, the label will be hidden.
visible	bool	True	If False, component will be hidden.
elem_id	str | None	None	An optional string that is assigned as the id of this component in the MotionCanvasPlayer DOM. Can be used for targeting CSS styles.
elem_classes	list[str] | str | None	None	An optional list of strings that are assigned as the classes of this component in the MotionCanvasPlayer DOM. Can be used for targeting CSS styles.
render	bool	True	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	int | str | tuple[int | str, ...] | None	None	in a gr.render, Components with the same key across re-renders are treated as the same component, not a new component. Properties set in 'preserved_by_key' are not reset across a re-render.
preserved_by_key	list[str] | str | None	"value"	A list of parameters from this component's constructor. Inside a gr.render() function, if a component is re-rendered with the same key, these (and only these) parameters will be preserved in the UI (if they have been changed by the user or an event listener) instead of re-rendered based on the values provided during constructor.
min_height	int | None	None	The minimum height of the component, specified in pixels if a number is passed, or in CSS units if a string is passed. If MotionCanvasPlayer content exceeds the height, the component will expand to fit the content.
max_height	int | None	None	The maximum height of the component, specified in pixels if a number is passed, or in CSS units if a string is passed. If content exceeds the height, the component will scroll.
container	bool	False	If True, the MotionCanvasPlayer component will be displayed in a container. Default is False.
padding	bool	True	If True, the MotionCanvasPlayer component will have a certain padding (set by the `--block-padding` CSS variable) in all directions. Default is True.
auto	bool | None	False	If True, the MotionCanvasPlayer component will automatically play the animation. Default is False.
quality	number | None	None	The quality of the MotionCanvasPlayer component. Default is None which uses the project's default settings.
width	int | None	None	The width of the MotionCanvasPlayer component. Default is None which uses the project's default settings.
height	int | None	None	The height of the MotionCanvasPlayer component. Default is None which uses the project's default settings.
variables	str | None	None	The variables of the MotionCanvasPlayer component as a JSON string. Default is None.

Events

name	description
change	Triggered when the value of the MotionCanvasPlayer changes either because of user input (e.g. a user types in a textbox) OR because of a function update (e.g. an image receives a value from the output of an event trigger). See .input() for a listener that is only triggered by user input.
click	Triggered when the MotionCanvasPlayer is clicked.

User function

The impact on the users predict function varies depending on whether the component is used as an input or output for an event (or both).

• When used as an Input, the component only impacts the input signature of the user function.
• When used as an output, the component only impacts the return signature of the user function.

The code snippet below is accurate in cases where the component is used as both an input and an output.

• As output: Is passed, (Rarely used) passes the MotionCanvasPlayer as a str.
• As input: Should return, expects a str consisting of valid MotionCanvasPlayer.

def predict(
    value: str | None
) -> str | None:
    return value