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import { window, workspace, ExtensionContext, TextEditor } from 'vscode'
import { NotificationEmitter } from './emitter'
import { LanguageClient } from 'vscode-languageclient'
import debounce from 'debounce'
const colorDecorationType = window.createTextEditorDecorationType({
before: {
width: '0.8em',
height: '0.8em',
contentText: ' ',
border: '0.1em solid',
margin: '0.1em 0.2em 0',
},
dark: {
before: {
borderColor: '#eeeeee',
},
},
light: {
before: {
borderColor: '#000000',
},
},
})
export function registerColorDecorator(
client: LanguageClient,
context: ExtensionContext,
emitter: NotificationEmitter
) {
let activeEditor = window.activeTextEditor
async function updateDecorations() {
return updateDecorationsInEditor(activeEditor)
}
async function updateDecorationsInEditor(editor: TextEditor) {
if (!editor) return
if (editor.document.uri.scheme !== 'file') return
let workspaceFolder = workspace.getWorkspaceFolder(editor.document.uri)
if (
!workspaceFolder ||
workspaceFolder.uri.toString() !==
client.clientOptions.workspaceFolder.uri.toString()
) {
return
}
let preference =
workspace.getConfiguration('tailwindCSS', editor.document)
.colorDecorators || 'inherit'
let enabled: boolean =
preference === 'inherit'
? Boolean(workspace.getConfiguration('editor').colorDecorators)
: preference === 'on'
if (!enabled) {
editor.setDecorations(colorDecorationType, [])
return
}
let { colors } = await emitter.emit('getDocumentColors', {
document: editor.document.uri.toString(),
})
editor.setDecorations(
colorDecorationType,
colors
.filter(({ color }) => color !== 'rgba(0, 0, 0, 0.01)')
.map(({ range, color }) => ({
range,
renderOptions: { before: { backgroundColor: color } },
}))
)
}
const triggerUpdateDecorations = debounce(updateDecorations, 200)
if (activeEditor) {
triggerUpdateDecorations()
}
window.onDidChangeActiveTextEditor(
(editor) => {
activeEditor = editor
if (editor) {
triggerUpdateDecorations()
}
},
null,
context.subscriptions
)
workspace.onDidChangeTextDocument(
(event) => {
if (activeEditor && event.document === activeEditor.document) {
triggerUpdateDecorations()
}
},
null,
context.subscriptions
)
workspace.onDidOpenTextDocument(
(document) => {
if (activeEditor && document === activeEditor.document) {
triggerUpdateDecorations()
}
},
null,
context.subscriptions
)
workspace.onDidChangeConfiguration((e) => {
if (
e.affectsConfiguration('editor.colorDecorators') ||
e.affectsConfiguration('tailwindCSS.colorDecorators')
) {
window.visibleTextEditors.forEach(updateDecorationsInEditor)
}
})
emitter.on('configUpdated', () => {
window.visibleTextEditors.forEach(updateDecorationsInEditor)
})
emitter.on('configError', () => {
window.visibleTextEditors.forEach(updateDecorationsInEditor)
})
}
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