d208396c5c
PERF: improve touch, swipe, panning performance on mobile menus --- * stop event propagation on swipe events: other touch events were stealing a huge amount of time here. Stop event propagation when handling pan events. * animate with [web animations api](https://developer.mozilla.org/en-US/docs/Web/API/Web_Animations_API/Using_the_Web_Animations_API) * prefer translate3d to hint for gpu rendering. * query document for elements only on start move event, not on subsequent move events * remove unused calculations for directioned velocity and distance: all swipe/pan elements function in x/y direction only. * re-implement scroll locking behavior. re-implemented scroll lock behavior --- With stop event propagation, we need to re-implement scroll locking on menu swipes. Previously, this was using onTouchMove which was costly. We may now use styling with overflow-y:hidden to lock scroll behavior. overflow:hidden on html/body elements is now supported by iOS as of 2022 https://bugs.webkit.org/show_bug.cgi?id=153852 https://bugs.webkit.org/show_bug.cgi?id=220908 UX: improve swipe --- Some improvements to get gestures and swipes feeling a little more polished. This focuses on end gesture, and how we transfer it to a css animation to complete a menu open/close action. Multitouch: events may pan, scroll, and zoom - especially on iOS safari. Cancelling the swipe event allows for a more pleasant zooming experience. * ease-out on menus opening, linear on close * calculate animation duration for opening and closing, attempt to better transfer user swipe velocity to css animation. * more timely close/open and cleanup from calculated animation timing. * add animation to closing menus on cloak tap * correctly animate menus with ease-in and ease-out * add swipe cancel event on multitouch event DEV --- * lean on promises js animations api gives us promises to listen to. Update test waiters to use waitForPromise from @ember/test-waiters instead of reigster/unregister. * convert swipe mixin to its own class. Convert swipe callbacks to custom events on the element. Move shared functions for max animation time and close logic to new shared class. swipe-events lib uses custom events to trigger callbacks, rather than assuming implemented hard coded function from the mixin's base class. Custom events are triggered from the bound element as swipestart, swipeend, swipe Add shared convenience functions for swipe events so they can be more easily shared. A client receives an initial swipe event and can check some state to see if it wants to handle the swipe event and if it doesn't, calling `event.preventDefault();` will prevent `swipe` and `swipeend` events from firing until another distinct swipestart event is fired. Swipe events will auto-cancel on multitouch. The scroll lock has also exposed as its own utility class. |
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Discourse is the online home for your community. We offer a 100% open source community platform to those who want complete control over how and where their site is run.
Our platform has been battle-tested for over a decade and continues to evolve to meet users’ needs for a powerful community platform. Discourse allows you to create discussion topics and connect using real-time chat, as well as access an ever-growing number of official and community themes. In addition, we offer a wide variety of plugins for features ranging from chatbots powered by Discourse AI to functionalities like SQL analysis using the Data Explorer plugin.
To learn more, visit discourse.org and join our support community at meta.discourse.org.
Screenshots
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Development
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If you're familiar with how Rails works and are comfortable setting up your own environment, you can also try out the Discourse Advanced Developer Guide, which is aimed primarily at Ubuntu and macOS environments.
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| Browsers | Tablets | Phones |
|---|---|---|
| Apple Safari | iPadOS | iOS |
| Google Chrome | Android | Android |
| Microsoft Edge | ||
| Mozilla Firefox |
Additionally, we aim to support Safari on iOS 15.7+.
Built With
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The original Discourse code contributors can be found in AUTHORS.MD. For a complete list of the many individuals that contributed to the design and implementation of Discourse, please refer to the official Discourse blog and GitHub's list of contributors.
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Copyright 2014 - 2023 Civilized Discourse Construction Kit, Inc.
Licensed under the GNU General Public License Version 2.0 (or later); you may not use this work except in compliance with the License. You may obtain a copy of the License in the LICENSE file, or at:
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To guide our ongoing effort to build accessible software we follow the W3C’s Web Content Accessibility Guidelines (WCAG). If you'd like to report an accessibility issue that makes it difficult for you to use Discourse, email accessibility@discourse.org. For more information visit discourse.org/accessibility.
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Discourse is built with love, Internet style.