[mod] client/simple: client plugins (#5406)

* [mod] client/simple: client plugins

Defines a new interface for client side *"plugins"* that coexist with server
side plugin system. Each plugin (e.g., `InfiniteScroll`) extends the base
`ts Plugin`. Client side plugins are independent and lazy‑loaded via `router.ts`
when their `load()` conditions are met. On each navigation request, all
applicable plugins are instanced.

Since these are client side plugins, we can only invoke them once DOM is fully
loaded. E.g. `Calculator` will not render a new `answer` block until fully
loaded and executed.

For some plugins, we might want to handle its availability in `settings.yml`
and toggle in UI, like we do for server side plugins. In that case, we extend
`py Plugin` instancing only the information and then checking client side if
[`settings.plugins`](https://github.com/inetol/searxng/blob/1ad832b1dc33f3f388da361ff2459b05dc86a164/client/simple/src/js/toolkit.ts#L134)
array has the plugin id.

* [mod] client/simple: rebuild static

1 files changed, 2 insertions, 0 deletions

diff --git a/searx/static/themes/simple/chunk/DBO1tjH7.min.js b/searx/static/themes/simple/chunk/DBO1tjH7.min.js
new file mode 100644
index 000000000..fa4086ae1
--- /dev/null
+++ b/searx/static/themes/simple/chunk/DBO1tjH7.min.js
@@ -0,0 +1,2 @@
+import{a as e,i as t,t as n}from"../sxng-core.min.js";import{t as r}from"./13gvpunf.min.js";import{t as i}from"./gZqIRpW1.min.js";var a=class extends e{constructor(){super(`infiniteScroll`)}async run(){let e=i(`results`).classList.contains(`only_template_images`),a=`article.result:last-child`,o=document.createElement(`div`);o.className=`loader`;let s=async i=>{let a=document.querySelector(`#search`);r(a);let s=document.querySelector(`#pagination form.next_page`);r(s);let c=a.getAttribute(`action`);if(!c)throw Error(`Form action not defined`);let l=document.querySelector(`#pagination`);r(l),l.replaceChildren(o);try{let t=await(await n(`POST`,c,{body:new FormData(s)})).text();if(!t)return;let r=new DOMParser().parseFromString(t,`text/html`),a=r.querySelectorAll(`#urls article`),o=r.querySelector(`#pagination`);document.querySelector(`#pagination`)?.remove();let l=document.querySelector(`#urls`);if(!l)throw Error(`URLs element not found`);a.length>0&&!e&&l.appendChild(document.createElement(`hr`)),l.append(...a),o&&(document.querySelector(`#results`)?.appendChild(o),i())}catch(e){console.error(`Error loading next page:`,e);let n=Object.assign(document.createElement(`div`),{textContent:t.translations?.error_loading_next_page??`Error loading next page`,className:`dialog-error`});n.setAttribute(`role`,`alert`),document.querySelector(`#pagination`)?.replaceChildren(n)}},c=new IntersectionObserver(async e=>{let[t]=e;t?.isIntersecting&&(c.unobserve(t.target),await s(()=>{let e=document.querySelector(a);e&&c.observe(e)}))},{rootMargin:`320px`}),l=document.querySelector(a);l&&c.observe(l)}async post(){}};export{a as default};
+//# sourceMappingURL=DBO1tjH7.min.js.map
\ No newline at end of file