code-server/extensions/emmet/src/reflectCssValue.ts

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/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
import { Range, window, TextEditor } from 'vscode';
import { getCssPropertyFromRule, getCssPropertyFromDocument } from './util';
import { Property, Rule } from 'EmmetNode';
const vendorPrefixes = ['-webkit-', '-moz-', '-ms-', '-o-', ''];
export function reflectCssValue(): Thenable<boolean> | undefined {
let editor = window.activeTextEditor;
if (!editor) {
window.showInformationMessage('No editor is active.');
return;
}
let node = getCssPropertyFromDocument(editor, editor.selection.active);
if (!node) {
return;
}
return updateCSSNode(editor, node);
}
function updateCSSNode(editor: TextEditor, property: Property): Thenable<boolean> {
const rule: Rule = property.parent;
let currentPrefix = '';
// Find vendor prefix of given property node
for (const prefix of vendorPrefixes) {
if (property.name.startsWith(prefix)) {
currentPrefix = prefix;
break;
}
}
const propertyName = property.name.substr(currentPrefix.length);
const propertyValue = property.value;
return editor.edit(builder => {
// Find properties with vendor prefixes, update each
vendorPrefixes.forEach(prefix => {
if (prefix === currentPrefix) {
return;
}
let vendorProperty = getCssPropertyFromRule(rule, prefix + propertyName);
if (vendorProperty) {
builder.replace(new Range(vendorProperty.valueToken.start, vendorProperty.valueToken.end), propertyValue);
}
});
});
}