Web Components & HTML template & HTML slot

https://github.com/xgqfrms/es-next/issues/2

live demo

See the Pen Web Components & HTML template & HTML slot by xgqfrms
(@xgqfrms) on CodePen.

codes

<!DOCTYPE html>

<html lang="zh-Hans">

<head>

    <meta charset="UTF-8">

    <meta name="viewport" content="width=device-width, initial-scale=1.0">

    <meta http-equiv="X-UA-Compatible" content="ie=edge">

    <meta name="author" content="xgqfrms">

    <meta name="generator" content="VS code">

    <link rel="icon" type="image/x-icon" href="./favicon.ico" />

    <link rel="icon" type="image/png" href="./favicon.png" />

    <title>template & slot</title>

    <style lang="css">

        dl { margin-left: 6px; }

        dt { font-weight: bold; color: #217ac0; font-size: 110% }

        dt { font-family: Consolas, "Liberation Mono", Courier }

        dd { margin-left: 16px }

    </style>

</head>

<body>

    <section>

        <header>

            <h1>template & slot</h1>

        </header>

        <main>

            <!-- template -->

            <template id="element-details-template">

                <style>

                    details {font-family: "Open Sans Light",Helvetica,Arial}

                    .name {font-weight: bold; color: #217ac0; font-size: 120%}

                    h4 { margin: 10px 0 -8px 0; }

                    h4 span { background: #217ac0; padding: 2px 6px 2px 6px }

                    h4 span { border: 1px solid #cee9f9; border-radius: 4px }

                    h4 span { color: white }

                    .attributes { margin-left: 22px; font-size: 90% }

                    .attributes p { margin-left: 16px; font-style: italic }

                </style>

                <details>

                    <summary>

                        <span>

                            <code class="name">

                                &lt;<slot name="element-name">NEED NAME</slot>&gt;

                            </code>

                            <i class="desc">

                                <slot name="description">NEED DESCRIPTION</slot>

                            </i>

                        </span>

                    </summary>

                    <div class="attributes">

                        <h4>

                            <span>Attributes</span>

                        </h4>

                        <slot name="attributes">

                            <p>None</p>

                        </slot>

                    </div>

                </details>

                <hr>

            </template>

            <!-- demo -->

            <element-details>

                <span slot="element-name">slot</span>

                <span slot="description">

                    A placeholder inside a web

                    component that users can fill with their own markup,

                    with the effect of composing different DOM trees

                    together.

                </span>

                <dl slot="attributes">

                    <dt>name</dt>

                    <dd>The name of the slot.</dd>

                </dl>

            </element-details>

            <element-details>

                <span slot="element-name">template</span>

                <span slot="description">

                    A mechanism for holding client-

                    side content that is not to be rendered when a page is

                    loaded but may subsequently be instantiated during

                    runtime using JavaScript.

                </span>

            </element-details>

        </main>

    </section>

    <!-- js -->

    <script src="./app.js"></script>

</body>

</html>

class extends

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Classes/extends

"use strict";

/**

 *

 * @author xgqfrms

 * @license MIT

 * @copyright xgqfrms

 *

 * @description app.js

 * @augments

 * @example

 * @link

 *

 */

let log = console.log;

customElements.define("element-details",

    class extends HTMLElement {

        constructor() {

            super();

            const template = document.getElementById("element-details-template").content;

            log(`element-details's template =`, template);

            let dom = template.cloneNode(true);

            log(`element-details's template's dom =`, dom);

            log(`this =`, this);

            const shadowRoot = this.attachShadow({mode: "open"}).appendChild(dom);

            log(`shadowRoot =`, shadowRoot);

        }

    }

);

standard DOM & shadow DOM

customElements

https://developer.mozilla.org/en-US/docs/Web/API/Window/customElements

https://developer.mozilla.org/en-US/docs/Web/Web_Components/Using_custom_elements

Web Components

https://developer.mozilla.org/en-US/docs/Web/Web_Components

https://developer.mozilla.org/en-US/docs/Web/API/CustomElementRegistry/define

https://developer.mozilla.org/en-US/docs/Web/API/Element/attachShadow

https://developer.mozilla.org/en-US/docs/Web/Web_Components/Using_custom_elements#Using_the_lifecycle_callbacks

ES6 & class extends

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Classes/extends

https://developer.mozilla.org/en-US/docs/Web/Web_Components/Using_templates_and_slots#Using_templates_with_web_components

practical

practice

https://www.htmlelements.com/

https://github.com/HTMLElements

https://hybrids.js.org/

https://github.com/hybridsjs/hybrids

https://www.polymer-project.org/

https://github.com/polymer

https://github.com/Polymer/polymer

https://polymer-library.polymer-project.org/

CSS Pseudo Selectors

::slotted & :empty

https://developer.mozilla.org/en-US/docs/Web/CSS/Pseudo-elements

https://developer.mozilla.org/en-US/docs/Web/CSS/pseudo-classes

https://developer.mozilla.org/en-US/docs/Web/CSS/::slotted

https://developer.mozilla.org/en-US/docs/Web/CSS/:empty



/* Selects any element placed inside a slot */

::slotted(*) {

  font-weight: bold;

}

/* Selects any <span> placed inside a slot */

::slotted(span) {

  font-weight: bold;

}

https://css-tricks.com/building-skeleton-screens-css-custom-properties/

You can use the :empty selector and a pseudo element to draw the skeleton, so it only applies to empty card elements.

Once the content is injected, the skeleton screen will automatically disappear.

/* css skeleton */

/*

 * Card Skeleton for Loading

 */

.card {

  width: 280px; //demo

  height: var(--card-height);

  &:empty::after {

    content:"";

    display:block;

    width: 100%;

    height: 100%;

    border-radius:6px;

    box-shadow: 0 10px 45px rgba(0,0,0, .1);

    background-image:

      linear-gradient(

        90deg,

        rgba(lightgrey, 0) 0,

        rgba(lightgrey, .8) 50%,

        rgba(lightgrey, 0) 100%

      ),                          //animation blur

      var(--title-skeleton),      //title

      var(--desc-line-skeleton),  //desc1

      var(--desc-line-skeleton),  //desc2

      var(--avatar-skeleton),     //avatar

      var(--footer-skeleton),     //footer bar

      var(--card-skeleton)        //card

    ;

    background-size:

      var(--blur-size),

      var(--title-width) var(--title-height),

      var(--desc-line-1-width) var(--desc-line-height),

      var(--desc-line-2-width) var(--desc-line-height),

      var(--avatar-size) var(--avatar-size),

      100% var(--footer-height),

      100% 100%

    ;

    background-position:

      -150% 0,                      //animation

      var(--title-position),        //title

      var(--desc-line-1-position),  //desc1

      var(--desc-line-2-position),  //desc2

      var(--avatar-position),       //avatar

      var(--footer-position),       //footer bar

      0 0                           //card

    ;

    background-repeat: no-repeat;

    animation: loading 1.5s infinite;

  }

}

@keyframes loading {

  to {

    background-position:

      350% 0,

      var(--title-position),

      var(--desc-line-1-position),

      var(--desc-line-2-position),

      var(--avatar-position),

      var(--footer-position),

      0 0

    ;

  }

}

2020.07

https://caniuse.com/#search=html templates

https://caniuse.com/#search=customElements

web components

https://caniuse.com/#search=web components

xgqfrms 2012-2020

www.cnblogs.com 发布文章使用：只允许注册用户才可以访问！

Web Components & HTML template & HTML slot的更多相关文章

Web Components & HTML5 & template & slot
Web Components & HTML5 & template & slot https://developer.mozilla.org/en-US/docs/Web/HT ...
html fragment & html template & virtual DOM & web components
html fragment & html template & virtual DOM https://developer.mozilla.org/en-US/docs/Web/API ...
The state of Web Components
Web Components have been on developers’ radars for quite some time now. They were first introduced b ...
一个使用 Web Components 的音乐播放器： MelodyPlayer
先上效果预览: Web Components 首先,什么是 Web Components ? MDN 给出的定义是: Web Components 是一套不同的技术,允许您创建可重用的定制元素(它们的 ...
学习web components
javascript里的两种组件 1 autonomous custom elements 一般extends HTMLElement, 可以通过<popup-info>或doducmen ...
[HTML5] Build Flexible HTML with HTMLTemplates using Slots and Web Components
HTMLTemplates are part of the web components specification. In this lesson we will learn what are HT ...
Web API之Web Components
本文参考<你的前端框架要被web组件替代了>. 于2011年面世的Web Components是一套功能组件,让开发者可以使用 HTML.CSS 和 JavaScript 创建可复用的组件 ...
Lightning Web Components 组合（五）
使用组合我们可以用来设计复杂的组件. 组合一些比较小的组件,可以增加组件的重新性以及可维护性. 通过以下一个简单的demo,将会展示关于owner 以及container 的概念,在实际的项目中 ex ...
使用CLI 3 创建发布Web Components
本文翻译自:codementor 翻译不当之处,欢迎指正交流 Web Components是web平台的未来吗?关于这一问题支持和反对的观点有很多.事实上浏览器对Web Components的支持正在 ...

随机推荐

How to Gracefully Close Channels
小结: 1. When a goroutine sends a value to a channel, we can view the goroutine releases the ownership ...
【进阶】ZooKeeper 相关概念总结
1. 开卷有益学习是一种习惯,只有把这种习惯保持下来,每天不学习一点就感觉浑身不自在,达到这样的境界,那么你成为大佬也就不远了买,正如我们标题所写的"开卷有益".人生匆匆,要想过 ...
[JSOI2019]节日庆典做题心得
[JSOI2019]节日庆典做题心得一个性质有趣的字符串题这要是在考场上我肯定做不出来吧一开始还以为要 SAM 什么的暴力搞,没想到只用到了 \(Z\) 函数 -- 也是我生疏了罢 (学了啥忘 ...
Linux环境Hive安装配置及使用
Linux环境Hive安装配置及使用一.Hive Hive环境前提二.Hive架构原理解析三.Hive-1.2.2单机安装流程 (1) 解压apache-hive-1.2.2-bin.tar.g ...
shell（shell变量、条件表达式、流程控制）
本章内容: 变量运算 if语句 for语句 while语句 break.continue 实例 shell变量 1.shell变量简介变量是任何一种编程语言都必不可少的组成部分,变量用来存放各种数 ...
CCF CSP 202012-2 期末预测之最佳阈值
202012-2 期末预测之最佳阈值题目背景考虑到安全指数是一个较大范围内的整数.小菜很可能搞不清楚自己是否真的安全,顿顿决定设置一个阈值 θ,以便将安全指数 y 转化为一个具体的预测结果--&q ...
JavaScript 、TypeScript 中的 Boolean
boolean 是 JavaScript 中一种有趣的原始数据类型.在TypeScript中,非严格模式下("strictNullChecks": false),它总共允许4个值 ...
Java链表（英雄增删查改）
链表(Linked List)介绍链表是有序的列表,但是它在内存中是存储如下小结: 1.链表是以节点的方式来存储,是链式存储. 2.每个节点包含 data 域, next 域:指向下一个节点. 3 ...
MySQL的安装、改密及远程连接
一.下载MySQL压缩包后的安装步骤将压缩包解压到指定的目录编辑好配置文件 [mysql] #设置MySQL客户端默认字符集 default-character-set=utf8 [mysqld] ...
2019牛客暑期多校训练营（第五场）H-subsequence 2 (拓扑排序+思维)
>传送门< 题意: 给你几组样例,给你两个字符a,b,一个长度len,一个长度为len的字符串str,str是字符串s的子串 str是s删掉除过a,b两字符剩下的子串,现在求s,多种情况输 ...

Web Components & HTML template & HTML slot

Web Components & HTML template & HTML slot

class extends

standard DOM & shadow DOM

customElements

Web Components

ES6 & class extends

practical

CSS Pseudo Selectors

xgqfrms 2012-2020

www.cnblogs.com 发布文章使用：只允许注册用户才可以访问！

Web Components & HTML template & HTML slot的更多相关文章

随机推荐

热门专题

Web Components & HTML template & HTML slot

Web Components & HTML template & HTML slot

class extends

standard DOM & shadow DOM

customElements

Web Components

ES6 & class extends

practical

CSS Pseudo Selectors

xgqfrms 2012-2020 www.cnblogs.com 发布文章使用：只允许注册用户才可以访问！

Web Components & HTML template & HTML slot的更多相关文章

随机推荐

热门专题

xgqfrms 2012-2020

www.cnblogs.com 发布文章使用：只允许注册用户才可以访问！