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from __future__ import annotations
from gradio.components.base import Component
from gradio.events import Events
import json
class GradioDesigner(Component):
"""
A visual designer component for building Gradio layouts with all components
"""
EVENTS = [Events.change, Events.input]
# Complete component definitions with their properties
COMPONENT_DEFINITIONS = {
"Textbox": {
"properties": ["label", "placeholder", "lines", "max_length", "type", "value"],
"defaults": {"label": "Text Input", "placeholder": "Enter text...", "lines": 1, "value": ""},
"icon": "📝",
"category": "Input"
},
"TextArea": {
"properties": ["label", "placeholder", "lines", "max_length", "value"],
"defaults": {"label": "Text Area", "placeholder": "Enter multiple lines...", "lines": 3, "value": ""},
"icon": "📄",
"category": "Input"
},
"Button": {
"properties": ["value", "variant", "size"],
"defaults": {"value": "Click me", "variant": "secondary", "size": "sm"},
"icon": "🔘",
"category": "Action"
},
"Slider": {
"properties": ["minimum", "maximum", "step", "value", "label"],
"defaults": {"label": "Slider", "minimum": 0, "maximum": 100, "step": 1, "value": 50},
"icon": "🎚️",
"category": "Input"
},
"Number": {
"properties": ["label", "value", "precision"],
"defaults": {"label": "Number", "value": 0, "precision": 0},
"icon": "🔢",
"category": "Input"
},
"Checkbox": {
"properties": ["label", "value"],
"defaults": {"label": "Checkbox", "value": False},
"icon": "☑️",
"category": "Input"
},
"CheckboxGroup": {
"properties": ["label", "choices", "value"],
"defaults": {"label": "Checkbox Group", "choices": ["Option 1", "Option 2"], "value": []},
"icon": "☑️",
"category": "Input"
},
"Radio": {
"properties": ["label", "choices", "value"],
"defaults": {"label": "Radio", "choices": ["Option 1", "Option 2"], "value": "Option 1"},
"icon": "🔘",
"category": "Input"
},
"Dropdown": {
"properties": ["label", "choices", "value", "multiselect"],
"defaults": {"label": "Dropdown", "choices": ["Option 1", "Option 2"], "value": "Option 1", "multiselect": False},
"icon": "📋",
"category": "Input"
},
"Toggle": {
"properties": ["label", "value"],
"defaults": {"label": "Toggle", "value": False},
"icon": "🔄",
"category": "Input"
},
"ColorPicker": {
"properties": ["label", "value"],
"defaults": {"label": "Color Picker", "value": "#ff0000"},
"icon": "🎨",
"category": "Input"
},
"Date": {
"properties": ["label", "value"],
"defaults": {"label": "Date", "value": "2025-01-01"},
"icon": "📅",
"category": "Input"
},
"Time": {
"properties": ["label", "value"],
"defaults": {"label": "Time", "value": "12:00"},
"icon": "⏰",
"category": "Input"
},
"File": {
"properties": ["label", "file_types"],
"defaults": {"label": "Upload File", "file_types": [".txt", ".pdf"]},
"icon": "📁",
"category": "Input"
},
"Image": {
"properties": ["label", "type", "tool", "interactive"],
"defaults": {"label": "Image", "type": "pil", "interactive": True},
"icon": "🖼️",
"category": "Media"
},
"Video": {
"properties": ["label", "format"],
"defaults": {"label": "Video", "format": "mp4"},
"icon": "🎥",
"category": "Media"
},
"Audio": {
"properties": ["label"],
"defaults": {"label": "Audio"},
"icon": "🎵",
"category": "Media"
},
"Dataframe": {
"properties": ["headers", "datatype", "value"],
"defaults": {"headers": ["Column 1", "Column 2"], "datatype": ["str", "str"], "value": []},
"icon": "📊",
"category": "Data"
},
"JSON": {
"properties": ["value"],
"defaults": {"value": "{}"},
"icon": "📋",
"category": "Data"
},
"Markdown": {
"properties": ["value"],
"defaults": {"value": "# Markdown Text"},
"icon": "📝",
"category": "Display"
},
"HTML": {
"properties": ["value"],
"defaults": {"value": "<p>HTML Content</p>"},
"icon": "🌐",
"category": "Display"
},
"Label": {
"properties": ["value"],
"defaults": {"value": "Label Text"},
"icon": "🏷️",
"category": "Display"
},
"Progress": {
"properties": ["value"],
"defaults": {"value": 0.5},
"icon": "📈",
"category": "Display"
}
}
def __init__(
self,
value: dict | None = None,
label: str | None = None,
**kwargs,
):
self.value = value or {"components": [], "layout": "blocks"}
super().__init__(label=label, **kwargs)
def preprocess(self, payload: dict | None) -> dict | None:
"""Process the layout configuration from frontend"""
if payload is None:
return None
return payload
def postprocess(self, value: dict | None) -> dict | None:
"""Send layout configuration to frontend"""
if value is None:
return {"components": [], "layout": "blocks"}
return value
def api_info(self) -> dict[str, list[str]]:
"""API info for the component"""
return {
"info": {
"type": "object",
"properties": {
"components": {
"type": "array",
"items": {
"type": "object",
"properties": {
"id": {"type": "string"},
"type": {"type": "string"},
"position": {
"type": "object",
"properties": {
"x": {"type": "number"},
"y": {"type": "number"}
}
},
"size": {
"type": "object",
"properties": {
"width": {"type": "number"},
"height": {"type": "number"}
}
},
"props": {"type": "object"}
}
}
},
"layout": {"type": "string"}
}
},
"serialized_info": False
}
def get_component_definitions(self):
"""Get all component definitions for frontend"""
return self.COMPONENT_DEFINITIONS
def example_payload(self) -> dict:
return {
"components": [
{
"id": "textbox_1",
"type": "Textbox",
"position": {"x": 100, "y": 50},
"size": {"width": 200, "height": 100},
"props": {"label": "Input", "placeholder": "Enter text..."}
}
],
"layout": "blocks"
}
def example_value(self) -> dict:
return self.example_payload()
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