alekseykulikov / touch-action Goto Github PK
View Code? Open in Web Editor NEWDisable 300ms delay on mobile using CSS touch-action or asynchronously download FastClick as polyfill
License: MIT License
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Cool Script
I tried your implementation inside a scroll view and it worked really nice.
I didn't see much difference on a range slider inside a web app running on Android 8.2 on a Motorola G5.
Do you think you can improve it further?
Regards
2.0.0
Problem source
Mobile browsers have a gesture known as double tap to zoom, and to make double tap to zoom work, browsers don’t fire a click event (or the various mouse events) until ~300 milliseconds after the user taps the screen. Simply put, without a delay browsers cannot differentiate between a “click” and the first half of a double tap.
Existing solutions
https://patrickhlauke.github.io/touch/tests/results/#suppressing-300ms-delay
FastClick (https://github.com/ftlabs/fastclick)
+ works everywhere - polyfilll
- applies to the whole page, blocks zoom
- additional 2.5 kb for every page, even on desktop
<meta name="viewport" content="width=device-width”>(https://twitter.com/jaffathecake/status/702854158878183425)
+ works iOS 9.3+
- hard to check native support
- requires polyfill as fallback
- does not work in IE
CSS touch-action: manipulation (https://github.com/alekseykulikov/touch-action)
+ works iOS 9.3+ and IE10 (ms-touch-action)
+ configurable
- works only with “clickable elements” (link, button)
- requires polyfill as fallback
Steps
- add test and support for msTouchAction
- add links to https://patrickhlauke.github.io/touch/tests/results/#suppressing-300ms-delay in Readme
- explain problem and solutions, advanced cases: needsclick, custom touch-action setup.
- add style snippet instead of
<body>modification
button:not(.needsclick), a[href]:not(.needsclick) {
touch-action: manipulation;
-ms-touch-action: manipulation;
}
- test on real devices (using saucelabs + delay detection)
- ask for feedback
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