Javascript Polymer JS-参数化霓虹灯动画配置
我有一个组件-从下到上的浮动数字动画。 这个代码运行得非常好:Javascript Polymer JS-参数化霓虹灯动画配置,javascript,polymer,polymer-1.0,web-component,neon-animation,Javascript,Polymer,Polymer 1.0,Web Component,Neon Animation,我有一个组件-从下到上的浮动数字动画。 这个代码运行得非常好: <dom-module id="floating-digit"> <style> span.increment { display: none; font-size: 12px; font-weight: normal; position: absolute; right: -10px; top: 1.25em; }
<dom-module id="floating-digit">
<style>
span.increment {
display: none;
font-size: 12px;
font-weight: normal;
position: absolute;
right: -10px;
top: 1.25em;
}
</style>
<template>
<span id="floater" class="increment">+[[digit]]</span>
</template>
</dom-module>
<script>
Polymer({
is: "floating-digit",
behaviors: [Polymer.NeonAnimationRunnerBehavior],
properties: {
digit: {
type: String,
value: "",
observer: '_animateDigit'
},
transformFrom: {
type: String,
value: "translateY(0)"
},
transformTo: {
type: String,
value: "translateY(-100%)"
},
animationConfig: {
value: function () {
return {
'animate': [
{
name: 'fade-in-animation',
node: this.$.floater,
timing: {duration: 100}
},
{
name: 'transform-animation',
node: this.$.floater,
transformFrom: "translateY(0)",
transformTo: "translateY(-100%)",
timing: {duration: 1500}
},
{
name: 'fade-out-animation',
node: this.$.floater,
timing: {duration: 2000, delay: 2000}
},
]
}
}
}
},
listeners: {
'neon-animation-finish': '_onNeonAnimationFinish'
},
_animateDigit: function _animateDigit() {
this.$.floater.style.display = "inline";
this.playAnimation('animate');
},
_onNeonAnimationFinish: function _onNeonAnimationFinish() {
this.$.floater.style.display = 'none';
},
})
</script>
我以这种方式更改了animationConfig(仅更改了摘录):
但它不起作用。此函数似乎无法访问元素中定义的所有属性
console.log(this)
返回animationConfig对象值的函数内部正确地将此
标识为所需的
实例。不幸的是,没有可用于动画参数化配置的属性。它们仍然没有定义
你们中有谁可能知道如何访问这些参数吗?如果有人感兴趣,我已经找到了解决方案。不幸的是,该解决方案不使用聚合物来获取这些参数 我正在使用本机web API执行此操作: 我的animationConfig看起来是这样的:
animationConfig: {
value: function () {
let transformFrom = this.attributes.getNamedItem('transform-from') ? this.attributes.getNamedItem('transform-from').textContent : "translateY(0)";
let transformTo = this.attributes.getNamedItem('transform-to') ? this.attributes.getNamedItem('transform-to').textContent : "translateY(-100%)";
return {
'animate': [
{
name: 'fade-in-animation',
node: this.$.floater,
timing: {duration: 100}
},
{
name: 'transform-animation',
node: this.$.floater,
transformFrom: transformFrom,
transformTo: transformTo,
timing: {duration: 1500}
},
{
name: 'fade-out-animation',
node: this.$.floater,
timing: {duration: 2000, delay: 2000}
},
]
}
}
}
我的称呼和以前一样:
<floating-digit id="floating-0" transform-from="translateY(-20%)" transform-to="translateY(-70%)" digit="5"></floating-digit>
如果有人知道为什么这不能正常工作,我们将邀请您分享您的解决方案
animationConfig: {
value: function () {
let transformFrom = this.attributes.getNamedItem('transform-from') ? this.attributes.getNamedItem('transform-from').textContent : "translateY(0)";
let transformTo = this.attributes.getNamedItem('transform-to') ? this.attributes.getNamedItem('transform-to').textContent : "translateY(-100%)";
return {
'animate': [
{
name: 'fade-in-animation',
node: this.$.floater,
timing: {duration: 100}
},
{
name: 'transform-animation',
node: this.$.floater,
transformFrom: transformFrom,
transformTo: transformTo,
timing: {duration: 1500}
},
{
name: 'fade-out-animation',
node: this.$.floater,
timing: {duration: 2000, delay: 2000}
},
]
}
}
}
<floating-digit id="floating-0" transform-from="translateY(-20%)" transform-to="translateY(-70%)" digit="5"></floating-digit>