Storybook Addon Root Attribute 

Storybook Addon Root Attribute to switch html, body or some element attribute at runtime for your story Storybook

Demo

Installation

``sh
yarn add -D storybook-addon-root-attribute
`

Configuration

Then create a file called addons.js in your storybook config and add following content to it:

`js
import "storybook-addon-root-attribute/register";
`

or create a file called main.js and add addon in addons section:

`js
module.exports = {
...
addons: [
...
'storybook-addon-root-attribute/register'
]
};
`

Usage

You need add the all the attribute values at compile time using the withRootAttribute decorator. They can be added globally or per story. You can then choose which ones root attribute activate on addon ui:

`js
// Import from @storybook/X where X is your framework
import {
configure,
addDecorator,
addParameters,
storiesOf
} from "@storybook/react";
import { withRootAttribute } from "storybook-addon-root-attribute";

// global
addDecorator(withRootAttribute);
addParameters({
rootAttribute: {
defaultState: {
name: "Default",
value: null
},
states: [
{
name: "Dark",
value: "dark"
}
]
}
});
`

You can use the rootAttribute parameter to override resources on each story individually:

`js
// per story
storiesOf("Addons|RootAttribute", module).add(
"Camera Icon",
() => Camera Icon,
{
rootAttribute: {
defaultState: {
name: "Default",
value: null
},
states: [
{
name: "Dark",
value: "dark"
}
]
}
}
);
`

If you want to use a tooltip (panel will not dissapear), you need to set tooltip in parameters with true value:

`js
addParameters({
rootAttribute: {
tooltip: true,
defaultState: {
name: "Default",
value: null
},
states: [
{
name: "Dark",
value: "dark"
}
]
}
});
`

Tooltip and panel will not sync about change attribute.

Configuration

Configuration params for rootAttribute parameter:

| Name | _Default_ | _Variants_ | Description |
|--------------|-----------|-----------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------|
| root | 'html' | 'html', 'body', or first element returned by 'document.querySelector(), or if none found -- 'html'' | Root node, which attribute will changed by addon |
| attribute | 'class' | any valid attribute name | Attribute name |
| defaultState | {} | should contain name and value | Default state for attribute. Value nil will remove attribute from root |
| states | [] | array with objects, which contain unique name and value for attribute | All needed states for attribute values. Each object should contain unique name (for button) and value for attribute |
| tooltip | false | boolean value | Add tooltip button for storybook |

Configuration example:

`js
addDecorator(withRootAttribute);
addParameters({
rootAttribute: {
root: "html",
attribute: "class",
defaultState: {
name: "Default",
value: null
},
states: [
{
name: "Dark",
value: "dark"
},
{
name: "A11Y",
value: "accessibility"
}
]
}
});
``