react-tap-event-plugin-fix
v3.0.3
Published
Facebook's TapEventPlugin, temporarily available on npm until its made public in their repo
Downloads
13
Maintainers
Readme
这个项目完全forkreact-tap-event-plugin, 但是添加了可以修改tapMoveThreshold的策略,来修复遇到的问题
(发来发现原项目也提了个request解决这个问题,但是还没merge)
Introduction
You've probably heard of iOS's dreaded 300ms tap delay. React's onClick
attribute falls prey to it. ~~Facebook's working on a solution in the form of TapEventPlugin
, but it won't be made available until 1.0.~~
~~If you're reading this, you're probably working on a project that can't wait until they figure out how they want to publish it. This repo is for you.~~
~~When Facebook solves #436 and #1170, this repo will disappear.~~
Facebook is not planning on supporting tap events (#436) because browsers are fixing/removing the click delay. Unfortunately it will take a lot of time before all mobile browsers (including iOS' UIWebView) will and can be updated.
Verify if you need this plugin for the browsers you need to support.
Installation
Latest:
$ npm i --save react-tap-event-plugin
Compatible with React >= 15.4 && < 16.0:
$ npm i --save [email protected]
Compatible with React > 0.14 && < 15.4:
$ npm i --save [email protected]
Compatible with React <= 0.14:
$ npm i --save [email protected]
Usage
var injectTapEventPlugin = require("react-tap-event-plugin");
injectTapEventPlugin();
Example
See demo project for a complete working example.
var React = require("react");
var ReactDOM = require("react-dom");
injectTapEventPlugin = require("react-tap-event-plugin");
injectTapEventPlugin();
var Main = React.createClass({
render: function() {
return (
<a
href="#"
onTouchTap={this.handleTouchTap}
onClick={this.handleClick}>
Tap Me
</a>
);
},
handleClick: function(e) {
console.log("click", e);
},
handleTouchTap: function(e) {
console.log("touchTap", e);
}
});
ReactDOM.render(<Main />, document.getElementById("container"));
Ignoring ghost clicks
When a tap happens, the browser sends a touchstart
and touchend
, and then
300ms later, a click
event. This plugin ignores the click event if it has
been immediately preceeded by a touch event (within 750ms of the last touch
event).
Occasionally, there may be times when the 750ms threshold is exceeded due to slow rendering or garbage collection, and this causes the dreaded ghost click.
The 750ms threshold is pretty good, but sometimes you might want to override
that behaviour. You can do this by supplying your own shouldRejectClick
function when you inject the plugin.
The following example will simply reject all click events, which you might
want to do if you are always using onTouchTap
and only building for touch
devices:
var React = require('react'),
injectTapEventPlugin = require("react-tap-event-plugin");
injectTapEventPlugin({
shouldRejectClick: function (lastTouchEventTimestamp, clickEventTimestamp) {
return true;
}
});
Build standalone version
Use the demo project and it's README instructions to build a version of React with the tap event plugin included.