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import type { StoryObj } from '@storybook/web-components';
import {expect, userEvent, within, spyOn} from '@storybook/test';
import '../custom-element/custom-element.js';
type TProps = { title: string; body:string};
type Story = StoryObj<TProps>;
function sleep(ms: number) { return new Promise((resolve) => setTimeout(resolve, ms)); }
function render(args: TProps)
{
const {title, body} = args;
return `
<fieldset>
<legend>${ title }</legend>
${ body }
</fieldset>
`;
}
const meta =
{ title: 'slice-events'
, render
};
export default meta;
export const SliceInitChangeEvent:Story =
{ args : {title: 'Slice initialization, change on event', body:`
<p>initial value should be 0; + and - should change the number in input field</p>
<custom-element>
<template>
<button slice="clickcount" slice-event="click" slice-value="//clickcount + 1">+</button>
<button slice="clickcount" slice-event="click" slice-value="//clickcount - 1">-</button>
<input slice="clickcount" type="number" value="{//clickcount ?? 0}">
<code data-testid="slice-value">{ //clickcount }</code>
</template>
</custom-element>
`}
, play: async ({canvasElement}) =>
{
const titleText = SliceInitChangeEvent.args!.title as string;
const canvas = within(canvasElement);
await canvas.findByText(titleText);
const code = await canvas.findByTestId('slice-value');
const input = await canvasElement.querySelector('[type="number"]') as HTMLInputElement;
await expect(code).toBeInTheDocument();
expect(code.textContent).to.equal('0', 'initial slot value 0');
expect(input.value).to.equal('0', 'initial input value 0');
canvasElement.querySelector('[slice-value="//clickcount + 1"]').click()
await sleep(10);
expect(code.textContent).to.equal('1', 'increment to 1');
expect(input.value).to.equal('1', 'increment input 1');
canvasElement.querySelector('[slice-value="//clickcount + 1"]').click();
await sleep(10);
canvasElement.querySelector('[slice-value="//clickcount + 1"]').click();
await sleep(10);
expect(code.textContent).to.equal('3', 'double increment to 3');
expect(input.value).to.equal('3', 'double increment input to 3');
canvasElement.querySelector('[slice-value="//clickcount - 1"]').click();
await sleep(10);
expect(code.textContent).to.equal('2', 'decrement to 2');
expect(input.value).to.equal('2', 'decrement input to 2');
},
};
export const RealtimeEventInSlice:Story =
{ args : {title: 'Realtime Slice data on event', body:`
<p>move the mouse over TEXTAREA and click to see slice and slice event changed</p>
<custom-element>
<template>
<textarea slice="s" slice-value="concat('x:', //@pageX)" slice-event="mousemove click"
style="width:16rem;height:16rem;box-shadow: inset {//@offsetX}px {//@offsetY}px gold;"></textarea><br/>
//slice/s : <code data-testid="//slice/s" >{ //slice/s }</code> <br/>
//slice/s/event/@offsetY : <code data-testid="//slice/s/event/@offsetY" >{ //slice/s/event/@offsetY }</code> <br/>
event type : <code data-testid="//slice/s/event/@type" >{ //slice/s/event/@type }</code>
</template>
</custom-element>
`}
, play: async ({canvasElement}) =>
{
const titleText = RealtimeEventInSlice.args!.title as string;
const canvas = within(canvasElement);
await canvas.findByText(titleText);
const sliceText = ()=> canvas.getByTestId('//slice/s').textContent
, offsetY = ()=> canvas.getByTestId('//slice/s/event/@offsetY').textContent
, eventType = ()=> canvas.getByTestId('//slice/s/event/@type').textContent;
const input = await canvasElement.querySelector('textarea');
// expect(input).toBeInTheDocument();
expect( sliceText() ).to.equal('', 'initial slot value blank');
expect( offsetY() ).to.equal('', 'initial slot offsetY blank');
expect( eventType() ).to.equal('', 'initial slot event blank');
const emitXy = ( x, y, eventName ) =>
{ const ev = new MouseEvent(eventName,
{ screenX: x,
screenY: y,
clientX: x,
clientY: y,
offsetX: x,
offsetY: y,
});
input.dispatchEvent( ev );
};
emitXy(20,20,'click');
await sleep(10);
expect( sliceText() ).to.equal('x:20', 'click slot value 20');
expect( Number(offsetY()) ).to.be.lessThan(0, 'offsetY click');
expect( eventType() ).to.equal('click', 'click event type');
},
};
export const DoubleEventInSlice:Story =
{ args : {title: 'slice-event="change submit change submit" ', body:`
<p> double same event should be treated as one.</p>
<custom-element>
<template>
<form slice-event="submit submit change change" slice="form-1">
<input slice-event="change change" required slice="field-1" data-testid="f1" name="f1"/>
<input name="f2" value="populated in form-data"/>
<button>next</button> <code>slices count {count(/datadom/slice/*)}</code>
</form>
</template>
</custom-element>
`}
, play: async ({canvasElement}) =>
{
const canvas = within(canvasElement);
const input = await canvas.findByTestId('f1');
input.focus();
await userEvent.type ( input, 'AB');
canvas.getByRole('button').focus()
await userEvent.clear( input );
await userEvent.click( canvas.getByRole('button'));
expect( await canvas.findByText('slices count 2')).toBeInTheDocument();
},
};
export const MultipleSlices:Story =
{ args : {title: 'slice="/datadom/attributes/emotion | s1" ', body:`
<p> double same event should be treated as one.</p>
<custom-element>
<template>
<input slice="s1|s2"
slice-event="input"
data-testid="f1"
/><br/>
Type to update s1 and s2 slices <br/>
slice <code>s1: {//slice/s1}</code><br/>
slice <code>s2: {//slice/s2}</code><br/>
</template>
</custom-element>
`}
, play: async ({canvasElement}) =>
{
const canvas = within(canvasElement);
const input = await canvas.findByTestId('f1');
input.focus();
await userEvent.type ( input, 'AB');
await expect( await canvas.findByText('s1: AB')).toBeInTheDocument();
await expect( await canvas.findByText('s2: AB')).toBeInTheDocument();
},
};
export const SlicesInAttrAndName:Story =
{ args : {title: 'slice="/datadom/attributes/emotion | s1" ', body:`
<p> double same event should be treated as one.</p>
<custom-element>
<template>
<attribute name="emotion">😃</attribute>
<input slice-event="input" slice="/datadom/attributes/emotion | s1" data-testid="f1"/>
<p>Type to update </p>
<p>emotion attribute: {emotion}</p>
<p>slice: {//slice/s1}</p>
</template>
</custom-element>
`}
, play: async ({canvasElement}) =>
{
const canvas = within(canvasElement);
const input = await canvas.findByTestId('f1');
input.focus();
await userEvent.type ( input, 'AB');
await expect( await canvas.findByText( 'emotion attribute: AB')).toBeInTheDocument();
},
};
/* istanbul ignore else -- @preserve */
if( 'test' === import.meta.env.MODE &&
!import.meta.url.includes('skiptest') )
{
const mod = await import('./slice-events.test.stories.ts?skiptest');
const { testStoryBook } = await import('./testStoryBook')
const { describe } = await import('vitest')
describe(meta.title, () => testStoryBook( mod, meta ) );
}
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