gitea/docs/content/doc/developers/guidelines-frontend.md

date	title	slug	weight	toc	draft	menu
2021-10-13T16:00:00+02:00	Guidelines for Frontend Development	guidelines-frontend	20	false	false	[{sidebar [{parent developers} {name Guidelines for Frontend} {weight 20} {identifier guidelines-frontend}]}]

Guidelines for Frontend Development

Table of Contents

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Background

Gitea uses Less CSS, Fomantic-UI (based on jQuery) and Vue2 for its frontend.

The HTML pages are rendered by Go HTML Template

General Guidelines

We recommend Google HTML/CSS Style Guide and Google JavaScript Style Guide

Gitea specific guidelines:

1. Every feature (Fomantic-UI/jQuery module) should be put in separate files/directories.
2. HTML ids and classes should use kebab-case.
3. HTML ids and classes used in JavaScript should be unique for the whole project, and should contain 2-3 feature related keywords. We recommend to use the js- prefix for classes that are only used in JavaScript.
4. jQuery events across different features should use their own namespaces.
5. CSS styling for classes provided by frameworks should not be overwritten. Always use new class-names to overwrite framework styles. We recommend to use the us- prefix for user defined styles.
6. The backend can pass complex data to the frontend by using ctx.PageData["myModuleData"] = map[]{}
7. Simple pages and SEO-related pages use Go HTML Template render to generate static Fomantic-UI HTML output. Complex pages can use Vue2 (or Vue3 in future).

Legacy Problems and Solutions

Too much code in web_src/index.js

Previously, most JavaScript code was written into web_src/index.js directly, making the file unmaintainable. Try to keep this file small by creating new modules instead. These modules can be put in the web_src/js/features directory for now.

Vue2/Vue3 and JSX

Gitea is using Vue2 now, we plan to upgrade to Vue3. We decided not to introduce JSX to keep the HTML and the JavaScript code separated.