2/19/2023 0 Comments Smoothscroll![]() ![]() I’m putting four static methods– scrollTo, scrollIntoView, setScrollPosition, and scrollTop- into this JavaScript class. Before I show you the code I will explain what’s going on. For organization-sake I’m also putting it in a sub-folder titled helpers. ![]() I’m creating scroll-helpers.js to contain them. Add that to your index.js like so: import * as smoothscroll from "smoothscroll-polyfill" įor any of today’s code to work we really need a helper to funnel functionality through. I’m adding the dependency for smoothscroll-polyfill so that this example will work on less rich browsers such as Microsoft Edge. I used the default create-react-app template on codesandbox.io to create this example today. I’m pretending you have set up your React application already and will jump right to the meat. What can you do? Today let’s talk about automatically scrolling React components into view upon render.Ĭode for today’s post can be located on this codesandbox project. As a result your component renders but it is under the fold and isn’t visible. Recentering also occurs if you move more than one (or the number specified by scroll-step) lines away from the visible portion of the buffer.You’ve just finished up your fancy new React component and got it into the workflow. The view will then be recentered around the cursor. The scrolling will still be jumpy if Emacs is unable to redisplay text fast enough to keep the scrolling rate up (this typically happens on slow terminals). (setq-default scroll-up-aggressively 0.01 I haven’t been able to work out why or how to stop it. Unfortunately, the text still jumps sometimes, in a really irritating way. If you want the text to scroll one line at a time when you move the cursor past the top or bottom of the window, use the following setting: (setq scroll-conservatively 10000) It attempts to improve upon pixel-scroll-mode by adding variable speed. Good-scroll.el implements smooth scrolling by pixel lines. ![]() This is distributed with Emacs and allows scrolling by pixel lines. While Sublimity offers a set of different features, some people are using just the smooth-scrolling: ( require ' sublimity) "smooth-scroll.el" provides a minor mode “smooth-scroll-mode” which brings “smooth scrolling” and “in-place scrolling” feature to Emacs. (setq scroll-step 1) keyboard scroll one line at a time smooth-scroll.el (setq mouse-wheel-follow-mouse 't) scroll window under mouse (setq mouse-wheel-progressive-speed nil) don't accelerate scrolling (setq mouse-wheel-scroll-amount '(1 ((shift). mouse wheel & keyboard scroll one line at a time scroll one line at a time (less "jumpy" than defaults) Keep in mind that setting it too low will cause normal trackpad scrolling to be interpolated, which is probably not what you want. If that number does not work, decrease it by 5 at a time until it starts to. If you want Emacs to continue to “drift” the display after it stops, and you aren’t using the NS port on macOS, enable ‘pixel-scroll-precision-use-momentum’.Īpply the following settings if you also want scrolling with an ordinary mouse to be almost as smooth as scrolling with a touchpad, on systems other than X: (setq pixel-scroll-precision-large-scroll-height 40.0) You will need to build with XInput 2 support (which should be on by default, but may require libXi to be installed), unless you’re not using X. You can enable it using ‘pixel-scroll-precision-mode’. The next release of Emacs, Emacs 29, will come with built-in support for pixel-based scrolling. ![]()
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