import { State } from './util/state' import type { Hover, TextDocument, Position } from 'vscode-languageserver' import { stringifyCss, stringifyConfigValue } from './util/stringify' const dlv = require('dlv') import { isCssContext } from './util/css' import { findClassNameAtPosition } from './util/find' import { validateApply } from './util/validateApply' import { getClassNameParts } from './util/getClassNameAtPosition' import * as jit from './util/jit' import { validateConfigPath } from './diagnostics/getInvalidConfigPathDiagnostics' export async function doHover( state: State, document: TextDocument, position: Position ): Promise { return ( (await provideClassNameHover(state, document, position)) || provideCssHelperHover(state, document, position) ) } function provideCssHelperHover(state: State, document: TextDocument, position: Position): Hover { if (!isCssContext(state, document, position)) return null const line = document.getText({ start: { line: position.line, character: 0 }, end: { line: position.line + 1, character: 0 }, }) const match = line.match(/(?theme|config)\((?['"])(?[^)]+)\k\)/) if (match === null) return null const startChar = match.index + match.groups.helper.length + 2 const endChar = startChar + match.groups.key.length if (position.character < startChar || position.character >= endChar) { return null } let key = match.groups.key .split(/(\[[^\]]+\]|\.)/) .filter(Boolean) .filter((x) => x !== '.') .map((x) => x.replace(/^\[([^\]]+)\]$/, '$1')) if (key.length === 0) return null if (match.groups.helper === 'theme') { key = ['theme', ...key] } const value = validateConfigPath(state, key).isValid ? stringifyConfigValue(dlv(state.config, key)) : null if (value === null) return null return { contents: { kind: 'markdown', value: ['```plaintext', value, '```'].join('\n') }, range: { start: { line: position.line, character: startChar }, end: { line: position.line, character: endChar, }, }, } } async function provideClassNameHover( state: State, document: TextDocument, position: Position ): Promise { let className = await findClassNameAtPosition(state, document, position) if (className === null) return null if (state.jit) { let { root, rules } = jit.generateRules(state, [className.className]) if (rules.length === 0) { return null } return { contents: { language: 'css', value: await jit.stringifyRoot(state, root, document.uri), }, range: className.range, } } const parts = getClassNameParts(state, className.className) if (!parts) return null if (isCssContext(state, document, position)) { let validated = validateApply(state, parts) if (validated === null || validated.isApplyable === false) { return null } } const settings = await state.editor.getConfiguration(document.uri) const css = stringifyCss( className.className, dlv(state.classNames.classNames, [...parts, '__info']), { tabSize: dlv(settings, 'editor.tabSize', 2), showPixelEquivalents: dlv(settings, 'tailwindCSS.showPixelEquivalents', true), rootFontSize: dlv(settings, 'tailwindCSS.rootFontSize', 16), } ) if (!css) return null return { contents: { language: 'css', value: css, }, range: className.range, } }