8841de68ac
Add a menu in the top right of the post index page that lets you select the thumbnail size. This menu is currently hidden until the new thumbnails have been generated. On desktop, there are five thumbnail sizes: * Small: 150x150 (https://danbooru.donmai.us/posts?size=150) * Medium: 180x180 (https://danbooru.donmai.us/posts?size=180) * Large: 225x225 (https://danbooru.donmai.us/posts?size=225) * Huge: 270x270 (https://danbooru.donmai.us/posts?size=270) * Gigantic: 360x360 (https://danbooru.donmai.us/posts?size=360) On mobile, there are four sizes: * Small: 150x150 / 3 posts per row (https://danbooru.donmai.us/posts?size=150) * Medium: 180x180 / 2 posts per row (https://danbooru.donmai.us/posts?size=180) * Large: 225x225 / 2 posts per row (https://danbooru.donmai.us/posts?size=225) * Huge: 360x360 / 1 posts per row (https://danbooru.donmai.us/posts?size=360) There are two extra sizes that aren't listed in the menu: * 225x360 (https://danbooru.donmai.us/posts?size=225w) * 270x360 (https://danbooru.donmai.us/posts?size=270w) These sizes are good for tall thumbnails, but not so much for wide thumbnails. They aren't listed because in practice they're a bit too big. The 225x225 and 270x270 sizes are really just 360x360 thumbnails scaled down in HTML. This means 225x225 and 360x360 thumbnails both use the same amount of bandwidth. Thumbnail size is currently a per-search option, not a persistent account-level setting. This changes the HTML structure of thumbnails somewhat, so this may break userscripts and custom CSS.
Helpers
This directory contains helper functions used by views. Helpers are used for simple common functions, such as linking to users or formatting timestamps.
Helper functions are globals. If you see an unnamespaced function in a view, and it's not a Rails function, then it's probably a helper defined here.
All helper functions defined in this directory are globally available to all views. They're not limited to single views. For example, the functions in posts_helper.rb are available to all views, not just to app/views/posts.
The use of helper functions should be minimized. Partials or components are preferred for more complex widgets, or for things used in only one or two places. Helper functions should be limited to very simple things used in nearly all views.