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Merged
merged 2 commits into from
Aug 21, 2025
Merged

Release #4

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348501d
First draft release workflow
csswizardry Aug 21, 2025
b8d2af5
Provide copy/paste snippet
csswizardry Aug 21, 2025
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44 changes: 44 additions & 0 deletions .github/workflows/release.yml
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@@ -0,0 +1,44 @@
name: release

on:
push:
tags:
- '*.*.*'
- '*.*.*-*'

permissions:
contents: write

jobs:
build-and-release:
runs-on: ubuntu-latest

steps:
- name: Checkout
uses: actions/checkout@v4

- name: Setup Node
uses: actions/setup-node@v4
with:
node-version: 20
cache: npm

- name: Install deps
run: npm ci

- name: Build obs.min.js
run: npm run build

- name: SHA256 checksum
run: shasum -a 256 obs.min.js > SHA256SUMS.txt

- name: Create GitHub Release and upload assets
uses: softprops/action-gh-release@v2
with:
tag_name: ${{ github.ref_name }}
name: 'Obs.js ${{ github.ref_name }}'
generate_release_notes: true
files: |
obs.min.js
SHA256SUMS.txt

10 changes: 10 additions & 0 deletions README.md
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Expand Up @@ -110,6 +110,16 @@ This means you could do something like this:
Obs.js **MUST** be placed in an inline `<script>` tag in the `<head>` of your
document, before any other scripts, stylesheets, or HTML that may depend on it.

Copy/paste the following as close to the top of your `<head>` as possible:

```html
<script>
/*! Obs.js | (c) Harry Roberts, csswizardry.com | MIT */
;(()=>{const e=document.currentScript;if((!e||e.src||e.type&&"module"===e.type.toLowerCase())&&!1===/^(localhost|127\.0\.0\.1|::1)$/.test(location.hostname))return void console.warn("[Obs.js] Skipping: must be an inline, classic <script> in <head>.",e?e.src?"src="+e.src:"type="+e.type:"type=module");const t=document.documentElement,{connection:n}=navigator;window.obs=window.obs||{};const i=!0===(window.obs&&window.obs.config||{}).observeChanges,o=()=>{const e=window.obs||{},n="number"==typeof e.downlinkBucket?e.downlinkBucket:null;e.connectionCapability="low"===e.rttCategory&&null!=n&&n>=8?"strong":"high"===e.rttCategory||null!=n&&n<=5?"weak":"moderate";const i=!0===e.dataSaver||!0===e.batteryLow;e.conservationPreference=i?"conserve":"neutral",e.deliveryMode=i||"strong"!==e.connectionCapability?i||"weak"===e.connectionCapability?"lite":"cautious":"rich",e.canShowRichMedia="rich"===e.deliveryMode,e.shouldAvoidRichMedia="lite"===e.deliveryMode,["strong","moderate","weak"].forEach(e=>{t.classList.remove(`has-connection-capability-${e}`)}),t.classList.add(`has-connection-capability-${e.connectionCapability}`),["conserve","neutral"].forEach(e=>{t.classList.remove(`has-conservation-preference-${e}`)}),t.classList.add(`has-conservation-preference-${e.conservationPreference}`),["rich","cautious","lite"].forEach(e=>{t.classList.remove(`has-delivery-mode-${e}`)}),t.classList.add(`has-delivery-mode-${e.deliveryMode}`)},a=()=>{if(!n)return;const{saveData:e,rtt:i,downlink:a}=n;window.obs.dataSaver=!!e,t.classList.toggle("has-data-saver",!!e);const s=(e=>Number.isFinite(e)?25*Math.ceil(e/25):null)(i);null!=s&&(window.obs.rttBucket=s);const c=(e=>Number.isFinite(e)?e<75?"low":e<=275?"medium":"high":null)(i);c&&(window.obs.rttCategory=c,["low","medium","high"].forEach(e=>t.classList.remove(`has-latency-${e}`)),t.classList.add(`has-latency-${c}`));const r=(l=a,Number.isFinite(l)?Math.ceil(l):null);var l;if(null!=r){window.obs.downlinkBucket=r;const e=r>=8;t.classList.toggle("has-bandwidth-low",r<=5),t.classList.toggle("has-bandwidth-high",e)}"downlinkMax"in n&&(window.obs.downlinkMax=n.downlinkMax),o()};a(),i&&n&&"function"==typeof n.addEventListener&&n.addEventListener("change",a);const s=e=>{if(!e)return;const{level:n,charging:i}=e,a=Number.isFinite(n)?n<=.05:null;window.obs.batteryCritical=a;const s=Number.isFinite(n)?n<=.2:null;window.obs.batteryLow=s,["critical","low"].forEach(e=>t.classList.remove(`has-battery-${e}`)),s&&t.classList.add("has-battery-low"),a&&t.classList.add("has-battery-critical");const c=!!i;window.obs.batteryCharging=c,t.classList.toggle("has-battery-charging",c),o()};"getBattery"in navigator&&navigator.getBattery().then(e=>{s(e),i&&"function"==typeof e.addEventListener&&(e.addEventListener("levelchange",()=>s(e)),e.addEventListener("chargingchange",()=>s(e)))}).catch(()=>{})})();
//# sourceURL=obs.inline.js
</script>
```

### Listen for Changes

If you have long-lived pages or a single-page app, you can instruct Obs.js to
Expand Down