preview.js 1.3 KB

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  1. import { global } from '@storybook/global';
  2. import { addons } from '@storybook/preview-api';
  3. import { STORY_CHANGED } from '@storybook/core-events';
  4. var ADDON_ID="storybook/highlight",HIGHLIGHT_STYLE_ID="storybookHighlight",HIGHLIGHT=`${ADDON_ID}/add`,RESET_HIGHLIGHT=`${ADDON_ID}/reset`;var {document}=global,highlightStyle=(color="#FF4785",style="dashed")=>`
  5. outline: 2px ${style} ${color};
  6. outline-offset: 2px;
  7. box-shadow: 0 0 0 6px rgba(255,255,255,0.6);
  8. `,highlightObject=color=>({outline:`2px dashed ${color}`,outlineOffset:2,boxShadow:"0 0 0 6px rgba(255,255,255,0.6)"}),channel=addons.getChannel(),highlight=infos=>{let id=HIGHLIGHT_STYLE_ID;resetHighlight();let elements=Array.from(new Set(infos.elements)),sheet=document.createElement("style");sheet.setAttribute("id",id),sheet.innerHTML=elements.map(target=>`${target}{
  9. ${highlightStyle(infos.color,infos.style)}
  10. }`).join(" "),document.head.appendChild(sheet);},resetHighlight=()=>{let id=HIGHLIGHT_STYLE_ID,sheetToBeRemoved=document.getElementById(id);sheetToBeRemoved&&sheetToBeRemoved.parentNode?.removeChild(sheetToBeRemoved);};channel.on(STORY_CHANGED,resetHighlight);channel.on(RESET_HIGHLIGHT,resetHighlight);channel.on(HIGHLIGHT,highlight);
  11. export { highlightObject, highlightStyle };