[英]Custom element using paper-button
I'm trying to make the text inside a custom element dynamic. 我正在尝试使自定义元素内的文本动态化。 I've created a custom element that creates a button using the paper-button lib.
我创建了一个自定义元素,该元素使用paper-button lib创建了一个按钮。 I want the value of the text displayed to be whatever value used by the user when calling the custom element.
我希望显示的文本值是用户调用自定义元素时使用的任何值。
ie 即
index.html 的index.html
<html>
<head>
</head>
<body>
<button>THIS VALUE HERE</button>
</body>
</html>
button.html button.html
<dom-module id='button'>
<template>
<paper-button raised> (TO BE PLACED HERE) </paper-button>
</template>
<script>
class Button extends Polymer.Element {
static get is() {
//return custom element
return 'button';
}
}
customElements.define(Button.is, Button);
</script>
basically, I want the custom button element to be whatever the text value is between the custom tag. 基本上,我希望自定义按钮元素成为自定义标签之间的文本值。
1) You can't have a custom element called button
as it is already taken by a native element... and because every custom element name needs to contain a "-". 1)您不能有一个名为
button
的自定义元素,因为它已被本机元素使用...,因为每个自定义元素名称都必须包含“-”。 So a possible name would my-button
. 因此,可能的名称为
my-button
。
2) Wrapping another custom element has pretty high-performance cost on non-native ShadowDom Browsers (IE, Edge, Firefox, Safari). 2)在非本机ShadowDom浏览器(IE,Edge,Firefox,Safari)上,包装另一个自定义元素会产生相当高的性能成本。 So probably better to use paper-button directly.
因此最好直接使用纸质按钮。
If you still want to use it you can do so using a default slot 如果仍要使用它,可以使用默认插槽
<paper-button raised><slot></slot></paper-button>
it will place the light dom node into your element and from there paper-button will place it into itself. 它将把光dom节点放置到您的元素中,然后从那里用纸按钮将其放置到自身中。
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