Feature: iFrame widget (#2261)

---------

Co-authored-by: shamoon <4887959+shamoon@users.noreply.github.com>

docs/widgets/services/iframe.md

@@ -0,0 +1,35 @@
+---
+title: iFrame
+Description: Add a custom iFrame Widget
+---
+
+A basic iFrame widget to show external content, see the [MDN docs](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/iframe) for more details about some of the options.
+
+!!! warning
+
+    Requests made via the iFrame widget are inherently **not proxied** as they are made from the browser itself.
+
+## Basic Example
+
+```yaml
+widget:
+  type: iframe
+  name: myIframe
+  src: http://example.com
+```
+
+## Full Example
+
+```yaml
+widget:
+  type: iframe
+  name: myIframe
+  src: http://example.com
+  classes: h-60 sm:h-60 md:h-60 lg:h-60 xl:h-60 2xl:h-72 # optional, use tailwind height classes, see https://tailwindcss.com/docs/height
+  referrerPolicy: same-origin # optional, no default
+  allowPolicy: autoplay fullscreen gamepad # optional, no default
+  allowFullscreen: false # optional, default: true
+  loadingStrategy: eager # optional, default: eager
+  allowScrolling: no # optional, default: yes
+  refreshInterval: 2000 # optional, no default
+```

mkdocs.yml

@@ -63,6 +63,7 @@ nav:
       - widgets/services/healthchecks.md
       - widgets/services/homeassistant.md
       - widgets/services/homebridge.md
+      - widgets/services/iframe.md
       - widgets/services/immich.md
       - widgets/services/jackett.md
       - widgets/services/jdownloader.md

src/utils/config/service-helpers.js

@@ -366,6 +366,13 @@ export function cleanServiceGroups(groups) {
           firstDayInWeek,
           view,
           maxEvents,
+          src, // iframe widget
+          classes,
+          referrerPolicy,
+          allowPolicy,
+          allowFullscreen,
+          loadingStrategy,
+          allowScrolling,
         } = cleanedService.widget;
 
         let fieldsList = fields;
@@ -413,6 +420,16 @@ export function cleanServiceGroups(groups) {
           if (app) cleanedService.widget.app = app;
           if (podSelector) cleanedService.widget.podSelector = podSelector;
         }
+        if (type === "iframe") {
+          if (src) cleanedService.widget.src = src;
+          if (classes) cleanedService.widget.classes = classes;
+          if (referrerPolicy) cleanedService.widget.referrerPolicy = referrerPolicy;
+          if (allowPolicy) cleanedService.widget.allowPolicy = allowPolicy;
+          if (allowFullscreen) cleanedService.widget.allowFullscreen = allowFullscreen;
+          if (loadingStrategy) cleanedService.widget.loadingStrategy = loadingStrategy;
+          if (allowScrolling) cleanedService.widget.allowScrolling = allowScrolling;
+          if (refreshInterval) cleanedService.widget.refreshInterval = refreshInterval;
+        }
         if (["opnsense", "pfsense"].includes(type)) {
           if (wan) cleanedService.widget.wan = wan;
         }

src/widgets/components.js

@@ -15,6 +15,7 @@ const components = {
   channelsdvrserver: dynamic(() => import("./channelsdvrserver/component")),
   cloudflared: dynamic(() => import("./cloudflared/component")),
   coinmarketcap: dynamic(() => import("./coinmarketcap/component")),
+  iframe: dynamic(() => import("./iframe/component")),
   customapi: dynamic(() => import("./customapi/component")),
   deluge: dynamic(() => import("./deluge/component")),
   diskstation: dynamic(() => import("./diskstation/component")),

src/widgets/iframe/component.jsx

@@ -0,0 +1,50 @@
+import { useState, useEffect } from "react";
+import classNames from "classnames";
+
+import Container from "components/services/widget/container";
+
+export default function Component({ service }) {
+  const [refreshTimer, setRefreshTimer] = useState(0);
+
+  const { widget } = service;
+
+  useEffect(() => {
+    if (widget?.refreshInterval) {
+      setInterval(
+        () => setRefreshTimer(refreshTimer + 1),
+        widget?.refreshInterval < 1000 ? 1000 : widget?.refreshInterval,
+      );
+    }
+  }, [refreshTimer, widget?.refreshInterval]);
+
+  const scrollingDisableStyle = widget?.allowScrolling === "no" ? { pointerEvents: "none", overflow: "hidden" } : {};
+
+  const classes = widget?.classes || "h-60 sm:h-60 md:h-60 lg:h-60 xl:h-60 2xl:h-72";
+
+  return (
+    <Container service={service}>
+      <div
+        className={classNames(
+          "bg-theme-200/50 dark:bg-theme-900/20 rounded m-1 flex-1 flex flex-col items-center justify-center text-center",
+          "service-block",
+        )}
+      >
+        <iframe
+          src={widget?.src}
+          key={`${widget?.name}-${refreshTimer}`}
+          name={widget?.name}
+          title={widget?.name}
+          allow={widget?.allowPolicy}
+          allowFullScreen={widget?.allowfullscreen}
+          referrerPolicy={widget?.referrerPolicy}
+          loading={widget?.loadingStrategy}
+          scrolling={widget?.allowScrolling}
+          style={{
+            scrollingDisableStyle,
+          }}
+          className={`rounded w-full ${classes}`}
+        />
+      </div>
+    </Container>
+  );
+}

src/widgets/iframe/widget.js

@@ -0,0 +1,3 @@
+const widget = {};
+
+export default widget;

tailwind.config.js

@@ -76,5 +76,9 @@ module.exports = {
     "dark:bg-white",
     "bg-orange-400",
     "dark:bg-orange-400",
+    {
+      pattern: /h-([0-96])/,
+      variants: ["sm", "md", "lg", "xl", "2xl"],
+    },
   ],
 };