[英]How to open an Accordion from a external link
我正在尝试滚动到关闭的手风琴内不同页面上的 ID。 我尝试了几种不同的方法,但我似乎无法弄清楚。 任何帮助是极大的赞赏。
我猜也许我可以在我当前的 Javascript 代码中实现一些可以实现这一点的东西? 谢谢
锚定标签 -
<a href="/pagename#test">This is a Test</a>
手风琴 -
<details>
<summary>
<div class="box box">
<div class="box-study box-study--content">
Accordion Name
</div>
<div class="box-study box-study--image">
<div class="studyicon">
<img src="/iconimage.png">
</div>
</div>
</div>
</summary>
<div class="inside themeGrey">
<h3 id="#test">Name of area I want to scroll too</h3>
</div>
</details>
手风琴的 Javascript
/** Class representing an accordion component. */
class Accordion {
/**
* Create an accordion component
*
* Accepts a container element which should contain a list of `details` and
* `summary` elements
*
* @param {String} selector The container element.
*/
constructor(selector) {
if (typeof selector !== "string") {
console.error("Accordion selector must be a string");
return;
}
this._container = document.querySelector(selector);
this._container.addEventListener('click', (event) => this._toggle(event));
}
/**
* Static method to close all `details` elements that are descendants of the
* passed in container element.
*
* @param {(HTMLElement|HTMLDocument)} [elem=document] The container
*/
static closeAll(elem = document) {
const opened = elem.querySelectorAll("details[open]");
for (const elem of opened) {
elem.removeAttribute("open");
}
}
/** Private methods */
/**
* Toggle the accordion elements
*
* @param {Event} event The triggering event object
*/
_toggle(event) {
event.preventDefault();
const details = event.target.closest("details");
if (details.hasAttribute("open")) {
details.removeAttribute("open");
} else {
Accordion.closeAll(this._container);
details.toggleAttribute("open");
}
}
}
在页面加载时,您可以检查 URL 是否具有哈希值。 然后查看元素是否存在。 如果它存在,请检查它是否在详细信息字段内,如果是,则打开手风琴并滚动到该元素。
有关实现的详细信息,请参阅_loadFromHash
。
/** Class representing an accordion component. */ class Accordion { /** * Create an accordion component * * Accepts a container element which should contain a list of `details` and * `summary` elements * * @param {String} selector The container element. */ constructor(selector) { if (typeof selector !== "string") { console.error("Accordion selector must be a string"); return; } this._container = document.querySelector(selector); this._container.addEventListener('click', this._toggle, false); this._loadFromHash(); } /** * Static method to close all `details` elements that are descendants of the * passed in container element. * * @param {(HTMLElement|HTMLDocument)} [elem=document] The container */ static closeAll(elem = document) { const opened = elem.querySelectorAll("details[open]"); for (const elem of opened) { elem.removeAttribute("open"); } } /** Private methods */ /** * Toggle the accordion elements * * @param {Event} event The triggering event object */ _toggle(event) { event.preventDefault(); const details = event.target.closest("details"); if (details.hasAttribute("open")) { details.removeAttribute("open"); } else { Accordion.closeAll(this._container); details.toggleAttribute("open"); } } _loadFromHash() { // FOR DEMO SINCE THERE IS NO HASH IN STACK OVERFLOW SNIPPET, REMOVE LINE IN REAL APP window.location.hash = '#test'; // Exit if no hash in url if(!window.location.hash) return; // Get element from hash, exit if not found const element = document.querySelector('#test'); if(!element) return; // Get parent details from element, exit if not found const details = element.closest('details'); if(!details) return; // Open accordion and scoll it into view details.toggleAttribute("open"); element.scrollIntoView(); } } new Accordion('details');
<details> <summary> <div class="box box"> <div class="box-study box-study--content"> Accordion Name </div> <div class="box-study box-study--image"> <div class="studyicon"> <img src="/iconimage.png"> </div> </div> </div> </summary> <div class="inside themeGrey"> <h3 id="test">Name of area I want to scroll too</h3> </div> </details>
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