feat: add copy button to action step header, improve other copy buttons (#37744)

- Adds a copy button to each action step header that copies the step's
rendered log output to clipboard.
- Extract a shared `copyToClipboard(target, content)` helper in
`clipboard.ts` that adds SVG success/failure feedback.
- `is-loading` height for the new helper is sourced from
`--loading-size`.
- Change actions log timestamp format to include seconds.

The indented-markdown code-block fix has moved to #37748.

<img width="244" height="165" alt="copystep"
src="https://github.com/user-attachments/assets/ce286b51-f77b-4d82-b161-ca0aa7ec4fdc"
/>

<img width="187" height="150" alt="copybt"
src="https://github.com/user-attachments/assets/5366b290-b776-496d-8dd4-58d5fa60be92"
/>

Fixes: https://github.com/go-gitea/gitea/issues/26116

---
This PR was written with the help of Claude Opus 4.7

---------

Signed-off-by: silverwind <me@silverwind.io>
Co-authored-by: Claude (Opus 4.7) <noreply@anthropic.com>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
Co-authored-by: Nicolas <bircni@icloud.com>

options/locale/locale_en-US.json

@@ -105,6 +105,7 @@
   "copy_error": "Copy failed",
   "copy_type_unsupported": "This file type cannot be copied",
   "copy_filename": "Copy filename",
+  "copy_output": "Copy output",
   "write": "Write",
   "preview": "Preview",
   "loading": "Loading…",

templates/base/head_script.tmpl

@@ -19,13 +19,13 @@ If you introduce mistakes in it, Gitea JavaScript code wouldn't run correctly.
 		sharedWorkerUri: '{{AssetURI "js/eventsource.sharedworker.js"}}',
 		{{/* this global i18n object should only contain general texts. for specialized texts, it should be provided inside the related modules by: (1) API response (2) HTML data-attribute (3) PageData */}}
 		i18n: {
-			copy_success: {{ctx.Locale.Tr "copy_success"}},
-			copy_error: {{ctx.Locale.Tr "copy_error"}},
 			error_occurred: {{ctx.Locale.Tr "error.occurred"}},
 			remove_label_str: {{ctx.Locale.Tr "remove_label_str"}},
 			modal_confirm: {{ctx.Locale.Tr "modal.confirm"}},
 			modal_cancel: {{ctx.Locale.Tr "modal.cancel"}},
 			more_items: {{ctx.Locale.Tr "more_items"}},
+			copy_success: {{ctx.Locale.Tr "copy_success"}},
+			copy_error: {{ctx.Locale.Tr "copy_error"}},
 		},
 	};
 	{{/* in case some pages don't render the pageData, we make sure it is an object to prevent null access */}}

templates/repo/actions/view_component.tmpl

@@ -36,6 +36,7 @@
 		data-locale-show-log-seconds="{{ctx.Locale.Tr "show_log_seconds"}}"
 		data-locale-show-full-screen="{{ctx.Locale.Tr "show_full_screen"}}"
 		data-locale-download-logs="{{ctx.Locale.Tr "download_logs"}}"
+		data-locale-copy-output="{{ctx.Locale.Tr "copy_output"}}"
 		data-locale-logs-always-auto-scroll="{{ctx.Locale.Tr "actions.logs.always_auto_scroll"}}"
 		data-locale-logs-always-expand-running="{{ctx.Locale.Tr "actions.logs.always_expand_running"}}"
 >

templates/repo/issue/view_content/context_menu.tmpl

@@ -3,13 +3,13 @@
 		{{svg "octicon-kebab-horizontal"}}
 	</a>
 	<div class="menu">
-		{{$referenceUrl := ""}}
+		{{$referenceLink := ""}}
 		{{if .issue}}
-			{{$referenceUrl = printf "%s#%s" ctx.RootData.Issue.Link .item.HashTag}}
+			{{$referenceLink = printf "%s#%s" ctx.RootData.Issue.Link .item.HashTag}}
 		{{else}}
-			{{$referenceUrl = printf "%s/files#%s" ctx.RootData.Issue.Link .item.HashTag}}
+			{{$referenceLink = printf "%s/files#%s" ctx.RootData.Issue.Link .item.HashTag}}
 		{{end}}
-		<div class="item context js-aria-clickable" data-clipboard-text-type="url" data-clipboard-text="{{$referenceUrl}}">{{ctx.Locale.Tr "repo.issues.context.copy_link"}}</div>
+		<div class="item context js-aria-clickable" data-clipboard-text="{{ctx.AppFullLink}}{{$referenceLink}}">{{ctx.Locale.Tr "repo.issues.context.copy_link"}}</div>
 		<div class="item context js-aria-clickable" data-clipboard-target="#{{.item.HashTag}}-raw">{{ctx.Locale.Tr "repo.issues.context.copy_source"}}</div>
 		{{if ctx.RootData.IsSigned}}
 			{{$needDivider := false}}
@@ -17,7 +17,7 @@
 				{{$needDivider = true}}
 				<div class="item context js-aria-clickable quote-reply {{if .diff}}quote-reply-diff{{end}}" data-target="{{.item.HashTag}}-raw">{{ctx.Locale.Tr "repo.issues.context.quote_reply"}}</div>
 				{{if not ctx.Consts.RepoUnitTypeIssues.UnitGlobalDisabled}}
-					<div class="item context js-aria-clickable reference-issue" data-target="{{.item.HashTag}}-raw" data-modal="#reference-issue-modal" data-poster="{{.item.Poster.GetDisplayName}}" data-poster-username="{{.item.Poster.Name}}" data-reference="{{$referenceUrl}}">{{ctx.Locale.Tr "repo.issues.context.reference_issue"}}</div>
+					<div class="item context js-aria-clickable reference-issue" data-target="{{.item.HashTag}}-raw" data-modal="#reference-issue-modal" data-poster="{{.item.Poster.GetDisplayName}}" data-poster-username="{{.item.Poster.Name}}" data-reference="{{$referenceLink}}">{{ctx.Locale.Tr "repo.issues.context.reference_issue"}}</div>
 				{{end}}
 				{{if or ctx.RootData.Permission.IsAdmin .IsCommentPoster ctx.RootData.HasIssuesOrPullsWritePermission}}
 					<div class="divider"></div>

templates/repo/view_content.tmpl

@@ -92,7 +92,7 @@
 			<button class="ui dropdown basic compact jump button tw-px-3" data-tooltip-content="{{ctx.Locale.Tr "repo.more_operations"}}">
 				{{svg "octicon-kebab-horizontal"}}
 				<div class="menu">
-					<a class="item" data-clipboard-text="{{.Repository.Link}}/src/commit/{{.CommitID}}/{{PathEscapeSegments .TreePath}}" data-clipboard-text-type="url">
+					<a class="item" data-clipboard-text="{{ctx.AppFullLink}}{{.Repository.Link}}/src/commit/{{.CommitID}}/{{PathEscapeSegments .TreePath}}">
 						{{svg "octicon-link" 16}}{{ctx.Locale.Tr "repo.file_copy_permalink"}}
 					</a>
 					{{if and (not $.DisableDownloadSourceArchives) $.RefFullName}}

web_src/css/modules/animations.css

@@ -13,6 +13,7 @@
 }
 
 .btn.is-loading > *,
+.btn-octicon.is-loading > *,
 .button.is-loading > * {
   opacity: 0;
 }
@@ -23,7 +24,7 @@
   display: block;
   left: 50%;
   top: 50%;
-  height: min(4em, 66.6%);
+  height: var(--loading-size, min(4em, 66.6%));
   width: fit-content; /* compat: safari - https://bugs.webkit.org/show_bug.cgi?id=267625 */
   aspect-ratio: 1;
   transform: translate(-50%, -50%);

web_src/js/components/ActionRunJobView.vue

@@ -3,8 +3,9 @@ import {nextTick, onBeforeUnmount, onMounted, ref, toRefs, watch} from 'vue';
 import {SvgIcon} from '../svg.ts';
 import ActionStatusIcon from './ActionStatusIcon.vue';
 import {addDelegatedEventListener, createElementFromAttrs, toggleElem} from '../utils/dom.ts';
-import {formatDatetime} from '../utils/time.ts';
+import {formatDatetime, formatDatetimeISO} from '../utils/time.ts';
 import {POST} from '../modules/fetch.ts';
+import {copyToClipboardWithFeedback} from '../modules/clipboard.ts';
 import type {IntervalId} from '../types.ts';
 import {toggleFullScreen} from '../utils.ts';
 import {localUserSettings} from '../modules/user-settings.ts';
@@ -201,6 +202,22 @@ function endLogGroup(stepIndex: number) {
   el._stepLogsActiveContainer = undefined;
 }
 
+async function copyStepOutput(event: MouseEvent, stepIndex: number) {
+  await copyToClipboardWithFeedback(event.currentTarget as HTMLElement, async () => {
+    const data = await fetchJobData([{step: stepIndex, cursor: null, expanded: true}]);
+    const stepLog = data.logs.stepsLog?.find((s) => s.step === stepIndex);
+    const lines: string[] = [];
+    for (const line of stepLog?.lines ?? []) {
+      const cmd = parseLogLineCommand(line);
+      if (cmd?.name === 'hidden' || cmd?.name === 'endgroup') continue;
+      const ts = formatDatetimeISO(line.timestamp);
+      const msg = createLogLineMessage(line, cmd).textContent ?? '';
+      lines.push(`${ts} ${msg}`);
+    }
+    return lines.join('\n');
+  });
+}
+
 // show/hide the step logs for a step
 function toggleStepLogs(idx: number) {
   currentJobStepsStates.value[idx].expanded = !currentJobStepsStates.value[idx].expanded;
@@ -216,7 +233,7 @@ function createLogLine(stepIndex: number, startTime: number, line: LogLine, cmd:
     String(line.index),
   );
   const logTimeStamp = createElementFromAttrs('span', {class: 'log-time-stamp'},
-    formatDatetime(new Date(line.timestamp * 1000)), // for "Show timestamps"
+    formatDatetime(line.timestamp * 1000), // for "Show timestamps"
   );
   const logMsg = createLogLineMessage(line, cmd);
   const seconds = Math.floor(line.timestamp - startTime);
@@ -261,17 +278,14 @@ function appendLogs(stepIndex: number, startTime: number, logLines: LogLine[]) {
   }
 }
 
-async function fetchJobData(abortController: AbortController): Promise<JobData> {
+// "cursor" is used to indicate the last position of the logs.
-  const logCursors = currentJobStepsStates.value.map((it, idx) => {
+// It's only used by backend, frontend just reads it and passes it back, it can be any type.
-    // cursor is used to indicate the last position of the logs
+// Frontend knows nothing about its type, never uses its value.
-    // it's only used by backend, frontend just reads it and passes it back, it can be any type.
+// For example: backend can make cursor=null means the first time to fetch logs, cursor=1234 for a position, cursor=eof for no more logs, etc.
-    // for example: make cursor=null means the first time to fetch logs, cursor=eof means no more logs, etc
+type LogCursor = {step: number, cursor: any, expanded: boolean};
-    return {step: idx, cursor: it.cursor, expanded: it.expanded};
+
-  });
+async function fetchJobData(logCursors: LogCursor[], signal?: AbortSignal): Promise<JobData> {
-  const resp = await POST(props.actionsViewUrl, {
+  const resp = await POST(props.actionsViewUrl, {signal, data: {logCursors}});
-    signal: abortController.signal,
-    data: {logCursors},
-  });
   return await resp.json();
 }
 
@@ -286,7 +300,8 @@ async function loadJob() {
   const abortController = new AbortController();
   loadingAbortController = abortController;
   try {
-    const runJobResp = await fetchJobData(abortController);
+    const logCursors = currentJobStepsStates.value.map((it, idx) => ({step: idx, cursor: it.cursor, expanded: it.expanded}));
+    const runJobResp = await fetchJobData(logCursors, abortController.signal);
     if (loadingAbortController !== abortController) return;
 
     // FIXME: this logic is quite hacky and dirty, it should be refactored in a better way in the future
@@ -459,7 +474,7 @@ async function hashChangeListener() {
         <SvgIcon
           v-if="isDone(run.status) && currentJobStepsStates[stepIdx].expanded && currentJobStepsStates[stepIdx].cursor === null"
           name="gitea-running"
-          class="tw-mr-2 rotate-clockwise"
+          class="rotate-clockwise"
         />
         <SvgIcon
           v-else
@@ -467,8 +482,17 @@ async function hashChangeListener() {
           class="tw-mr-2 step-summary-chevron"
           :class="{'tw-invisible': !isExpandable(jobStep.status)}"
         />
-        <ActionStatusIcon :status="jobStep.status" icon-variant="circle-fill" class="tw-mr-2"/>
+        <ActionStatusIcon :status="jobStep.status" icon-variant="circle-fill"/>
         <span class="step-summary-msg gt-ellipsis">{{ jobStep.summary }}</span>
+        <button
+          v-if="isExpandable(jobStep.status)"
+          class="btn interact-fg step-copy-btn"
+          :aria-label="locale.copyOutput"
+          :data-tooltip-content="locale.copyOutput"
+          @click.stop="copyStepOutput($event, stepIdx)"
+        >
+          <SvgIcon name="octicon-copy" :size="14"/>
+        </button>
         <span class="step-summary-duration">{{ jobStep.duration }}</span>
       </div>
       <!-- the log elements could be a lot, do not use v-if to destroy/reconstruct the DOM,
@@ -553,6 +577,7 @@ async function hashChangeListener() {
   padding: 5px 10px;
   display: flex;
   align-items: center;
+  gap: 8px;
   border-radius: var(--border-radius);
 }
 
@@ -577,8 +602,20 @@ async function hashChangeListener() {
   flex: 1;
 }
 
-.job-step-container .job-step-summary .step-summary-duration {
+.job-step-container .job-step-summary .step-copy-btn {
-  margin-left: 16px;
+  visibility: hidden;
+  margin: 0 4px;
+}
+
+.job-step-container .job-step-summary:hover .step-copy-btn,
+.job-step-container .job-step-summary.selected .step-copy-btn {
+  visibility: visible;
+}
+
+@media (hover: none) {
+  .job-step-container .job-step-summary:focus-within .step-copy-btn {
+    visibility: visible;
+  }
 }
 
 .job-step-container .job-step-summary.selected {

web_src/js/features/clipboard.ts

@@ -1,40 +0,0 @@
-import {showTemporaryTooltip} from '../modules/tippy.ts';
-import {toAbsoluteUrl} from '../utils.ts';
-import {clippie} from 'clippie';
-
-const {copy_success, copy_error} = window.config.i18n;
-
-// Enable clipboard copy from HTML attributes. These properties are supported:
-// - data-clipboard-text: Direct text to copy
-// - data-clipboard-target: Holds a selector for an element. "value" of <input> or <textarea>, or "textContent" of <div> will be copied
-// - data-clipboard-text-type: When set to 'url' will convert relative to absolute urls
-export function initGlobalCopyToClipboardListener() {
-  document.addEventListener('click', async (e) => {
-    const target = (e.target as HTMLElement).closest('[data-clipboard-text], [data-clipboard-target]');
-    if (!target) return;
-
-    e.preventDefault();
-
-    let text = target.getAttribute('data-clipboard-text');
-    if (text === null) {
-      const textSelector = target.getAttribute('data-clipboard-target')!;
-      const textTarget = document.querySelector(textSelector)!;
-      if (textTarget.nodeName === 'INPUT' || textTarget.nodeName === 'TEXTAREA') {
-        text = (textTarget as HTMLInputElement | HTMLTextAreaElement).value;
-      } else if (textTarget.nodeName === 'DIV') {
-        text = textTarget.textContent;
-      } else {
-        throw new Error(`Unsupported element for clipboard target: ${textSelector}`);
-      }
-    }
-
-    if (text && target.getAttribute('data-clipboard-text-type') === 'url') {
-      text = toAbsoluteUrl(text);
-    }
-
-    if (text) {
-      const success = await clippie(text);
-      showTemporaryTooltip(target, success ? copy_success : copy_error);
-    }
-  });
-}

web_src/js/features/copycontent.ts

@@ -1,54 +1,25 @@
-import {clippie} from 'clippie';
+import {copyToClipboardWithFeedback} from '../modules/clipboard.ts';
-import {showTemporaryTooltip} from '../modules/tippy.ts';
 import {convertImage} from '../utils.ts';
 import {GET} from '../modules/fetch.ts';
 import {registerGlobalEventFunc} from '../modules/observer.ts';
 
-const {i18n} = window.config;
-
 export function initCopyContent() {
   registerGlobalEventFunc('click', 'onCopyContentButtonClick', async (btn: HTMLElement) => {
     if (btn.classList.contains('disabled') || btn.classList.contains('is-loading')) return;
+    await copyToClipboardWithFeedback(btn, async () => {
       const rawFileLink = btn.getAttribute('data-raw-file-link');
-
+      if (!rawFileLink) {
-    let content, isRasterImage = false;
+        const lineEls = document.querySelectorAll('.file-view .lines-code');
-
+        return Array.from(lineEls, (el) => el.textContent).join('');
-    // when "data-raw-link" is present, we perform a fetch. this is either because
+      }
-    // the text to copy is not in the DOM, or it is an image that should be
-    // fetched to copy in full resolution
-    if (rawFileLink) {
-      btn.classList.add('is-loading', 'loading-icon-2px');
-      try {
       const res = await GET(rawFileLink, {credentials: 'include', redirect: 'follow'});
       const contentType = res.headers.get('content-type')!;
-
       if (contentType.startsWith('image/') && !contentType.startsWith('image/svg')) {
-          isRasterImage = true;
+        // browsers only accept image/png in the clipboard, convert other raster formats
-          content = await res.blob();
+        const blob = await res.blob();
-        } else {
+        return contentType === 'image/png' ? blob : convertImage(blob, 'image/png');
-          content = await res.text();
-        }
-      } catch {
-        return showTemporaryTooltip(btn, i18n.copy_error);
-      } finally {
-        btn.classList.remove('is-loading', 'loading-icon-2px');
-      }
-    } else { // text, read from DOM
-      const lineEls = document.querySelectorAll('.file-view .lines-code');
-      content = Array.from(lineEls, (el) => el.textContent).join('');
-    }
-
-    // try copy original first, if that fails, and it's an image, convert it to png
-    const success = await clippie(content);
-    if (success) {
-      showTemporaryTooltip(btn, i18n.copy_success);
-    } else {
-      if (isRasterImage) {
-        const success = await clippie(await convertImage(content as Blob, 'image/png'));
-        showTemporaryTooltip(btn, success ? i18n.copy_success : i18n.copy_error);
-      } else {
-        showTemporaryTooltip(btn, i18n.copy_error);
-      }
       }
+      return await res.text();
+    });
   });
 }

web_src/js/features/dropzone.ts

@@ -1,7 +1,6 @@
 import {svg} from '../svg.ts';
 import {html} from '../utils/html.ts';
-import {clippie} from 'clippie';
+import {copyToClipboardWithFeedback} from '../modules/clipboard.ts';
-import {showTemporaryTooltip} from '../modules/tippy.ts';
 import {GET, POST} from '../modules/fetch.ts';
 import {showErrorToast} from '../modules/toast.ts';
 import {createElementFromHTML, createElementFromAttrs} from '../utils/dom.ts';
@@ -9,8 +8,6 @@ import {errorMessage} from '../modules/errors.ts';
 import {isImageFile, isVideoFile} from '../utils.ts';
 import type Dropzone from '@deltablot/dropzone';
 
-const {i18n} = window.config;
-
 type CustomDropzoneFile = Dropzone.DropzoneFile & {uuid: string};
 
 // dropzone has its owner event dispatcher (emitter)
@@ -48,14 +45,13 @@ export function generateMarkdownLinkForAttachment(file: Partial<CustomDropzoneFi
 function addCopyLink(file: Partial<CustomDropzoneFile>) {
   // Create a "Copy Link" element, to conveniently copy the image or file link as Markdown to the clipboard
   // The "<a>" element has a hardcoded cursor: pointer because the default is overridden by .dropzone
-  const copyLinkEl = createElementFromHTML(`
+  const copyLinkEl = createElementFromHTML<HTMLDivElement>(`
 <div class="tw-text-center">
   <a href="#" class="tw-cursor-pointer">${svg('octicon-copy', 14)} Copy link</a>
 </div>`);
   copyLinkEl.addEventListener('click', async (e) => {
     e.preventDefault();
-    const success = await clippie(generateMarkdownLinkForAttachment(file));
+    await copyToClipboardWithFeedback(copyLinkEl, generateMarkdownLinkForAttachment(file));
-    showTemporaryTooltip(e.target as Element, success ? i18n.copy_success : i18n.copy_error);
   });
   file.previewTemplate!.append(copyLinkEl);
 }

web_src/js/features/repo-actions.ts

@@ -37,6 +37,7 @@ export function initRepositoryActionView() {
       showLogSeconds: el.getAttribute('data-locale-show-log-seconds'),
       showFullScreen: el.getAttribute('data-locale-show-full-screen'),
       downloadLogs: el.getAttribute('data-locale-download-logs'),
+      copyOutput: el.getAttribute('data-locale-copy-output'),
       status: {
         unknown: el.getAttribute('data-locale-status-unknown'),
         waiting: el.getAttribute('data-locale-status-waiting'),

web_src/js/features/repo-code.ts

@@ -41,9 +41,8 @@ function selectRange(range: string): Element | null {
   const updateCopyPermalinkUrl = function (anchor: string) {
     if (!copyPermalink) return;
     let link = copyPermalink.getAttribute('data-url')!;
-    link = `${link.replace(/#L\d+$|#L\d+-L\d+$/, '')}#${anchor}`;
+    link = `${window.location.origin}${link.replace(/#L\d+$|#L\d+-L\d+$/, '')}#${anchor}`;
     copyPermalink.setAttribute('data-clipboard-text', link);
-    copyPermalink.setAttribute('data-clipboard-text-type', 'url');
   };
 
   const rangeFields = range ? range.split('-') : [];

web_src/js/index.ts

@@ -2,7 +2,8 @@ import '../fomantic/build/fomantic.js';
 import '../css/index.css';
 
 import {initDashboardRepoList} from './features/dashboard.ts';
-import {initGlobalCopyToClipboardListener} from './features/clipboard.ts';
+import {initGlobalCopyToClipboardListener} from './modules/clipboard.ts';
+import {initCopyContent} from './features/copycontent.ts';
 import {initRepoGraphGit} from './features/repo-graph.ts';
 import {initHeatmap} from './features/heatmap.ts';
 import {initImageDiff} from './features/imagediff.ts';
@@ -40,7 +41,6 @@ import {initRepoBranchButton} from './features/repo-branch.ts';
 import {initCommonOrganization} from './features/common-organization.ts';
 import {initRepoWikiForm} from './features/repo-wiki.ts';
 import {initRepository, initBranchSelectorTabs} from './features/repo-legacy.ts';
-import {initCopyContent} from './features/copycontent.ts';
 import {initCaptcha} from './features/captcha.ts';
 import {initRepositoryActionView} from './features/repo-actions.ts';
 import {initGlobalTooltips} from './modules/tippy.ts';

web_src/js/modules/clipboard.ts

@@ -0,0 +1,90 @@
+import {clippie, type ClippieContent} from 'clippie';
+import {showTemporaryTooltip} from './tippy.ts';
+import {sleep} from '../utils.ts';
+import {svg} from '../svg.ts';
+import {createElementFromHTML} from '../utils/dom.ts';
+
+const {copy_success, copy_error} = window.config.i18n;
+const pendingFeedback = new WeakSet<HTMLElement>();
+
+/** copy the copiable content to clipboard, return "true" on success, otherwise "false" */
+export async function copyToClipboard(content: ClippieContent): Promise<boolean> {
+  return await clippie(content);
+}
+
+/** Copy `content` to the clipboard. `target` is used to:
+ *  - avoid duplicate copy actions (especially when the content will be fetched from an async function)
+ *  - provide feedback to end users (its `.octicon-copy` is swapped to show success/fail feedback, or a tooltip if it has none)
+ *  When `content` is a function, `target` also shows a spinner while it resolves. */
+export async function copyToClipboardWithFeedback(target: HTMLElement, content: ClippieContent | (() => Promise<ClippieContent>)) {
+  if (pendingFeedback.has(target)) return;
+  pendingFeedback.add(target);
+
+  let success = false;
+  const feedbackSvg = target.querySelector<SVGElement>('.octicon-copy');
+
+  // prepare copiable "content"
+  try {
+    if (typeof content === 'function') {
+      if (feedbackSvg) target.style.setProperty('--loading-size', `${feedbackSvg.getAttribute('width')!}px`);
+      target.classList.add('is-loading', 'loading-icon-2px');
+      try {
+        content = await content();
+      } finally {
+        target.classList.remove('is-loading', 'loading-icon-2px');
+        target.style.removeProperty('--loading-size');
+      }
+    }
+    success = await copyToClipboard(content);
+  } catch (err) {
+    console.error(err);
+  }
+
+  // show feedback
+  if (feedbackSvg) {
+    const restore = replaceWithFeedbackSvg(feedbackSvg, success);
+    await sleep(1000);
+    restore();
+  } else {
+    showTemporaryTooltip(target, success ? copy_success : copy_error);
+  }
+
+  pendingFeedback.delete(target);
+}
+
+function replaceWithFeedbackSvg(origSvg: SVGElement, success: boolean): () => void {
+  const size = Number(origSvg.getAttribute('width')!);
+  const {icon, color} = success ?
+    {icon: 'octicon-check', color: 'tw-text-green'} as const :
+    {icon: 'octicon-x', color: 'tw-text-red'} as const;
+  const newSvg = createElementFromHTML<SVGElement>(svg(icon, size, color));
+  origSvg.replaceWith(newSvg);
+  return () => newSvg.replaceWith(origSvg);
+}
+
+// Enable clipboard copy from HTML attributes. These properties are supported:
+// - data-clipboard-text: Direct text to copy
+// - data-clipboard-target: Holds a selector for an element. "value" of <input> or <textarea>, or "textContent" of <div> will be copied
+export function initGlobalCopyToClipboardListener() {
+  document.addEventListener('click', async (e) => {
+    const target = (e.target as HTMLElement).closest<HTMLElement>('[data-clipboard-text], [data-clipboard-target]');
+    if (!target) return;
+
+    e.preventDefault();
+
+    let text = target.getAttribute('data-clipboard-text');
+    if (text === null) {
+      const textSelector = target.getAttribute('data-clipboard-target')!;
+      const textTarget = document.querySelector(textSelector)!;
+      if (textTarget.nodeName === 'INPUT' || textTarget.nodeName === 'TEXTAREA') {
+        text = (textTarget as HTMLInputElement | HTMLTextAreaElement).value;
+      } else if (textTarget.nodeName === 'DIV') {
+        text = textTarget.textContent;
+      } else {
+        throw new Error(`Unsupported element for clipboard target: ${textSelector}`);
+      }
+    }
+    // now, text can not be null
+    await copyToClipboardWithFeedback(target, text);
+  });
+}

web_src/js/modules/codeeditor/context-menu.ts

@@ -1,5 +1,5 @@
-import {clippie} from 'clippie';
 import {createTippy} from '../tippy.ts';
+import {copyToClipboard} from '../clipboard.ts';
 import {keySymbols} from '../../utils.ts';
 import {goToDefinitionAt} from './utils.ts';
 import type {Instance} from 'tippy.js';
@@ -95,13 +95,13 @@ function buildMenuItems(cm: CodemirrorModules, view: EditorView, togglePalette:
     'separator',
     {label: 'Cut', keys: 'Mod+X', disabled: !hasSelection, run: async (v) => {
       const {from, to} = v.state.selection.main;
-      if (await clippie(v.state.doc.sliceString(from, to))) {
+      if (await copyToClipboard(v.state.doc.sliceString(from, to))) {
         v.dispatch({changes: {from, to}});
       }
     }},
     {label: 'Copy', keys: 'Mod+C', disabled: !hasSelection, run: async (v) => {
       const {from, to} = v.state.selection.main;
-      await clippie(v.state.doc.sliceString(from, to));
+      await copyToClipboard(v.state.doc.sliceString(from, to));
     }},
     {label: 'Paste', keys: 'Mod+V', run: async (view) => {
       try {

web_src/js/utils/time.ts

@@ -65,18 +65,25 @@ export function fillEmptyStartDaysWithZeroes(startDays: number[], data: DayDataO
 
 let dateFormat: Intl.DateTimeFormat;
 
-/** Format a Date object to document's locale, but with 24h format from user's current locale because this
+// ISO 8601 UTC with 7-digit fractional seconds, matching Go's `2006-01-02T15:04:05.0000000Z07:00`
- *  option is a personal preference of the user, not something that the document's locale should dictate. */
+export function formatDatetimeISO(unixSeconds: number): string {
+  const base = new Date(unixSeconds * 1000).toISOString().slice(0, 19);
+  const frac = unixSeconds - Math.floor(unixSeconds);
+  const fracInt = Math.floor(frac * 10_000_000);
+  return `${base}.${String(fracInt).padStart(7, '0')}Z`;
+}
+
+/** Format a Date to a localized format, for example "21 May 2026, 14:30:45". */
 export function formatDatetime(date: Date | number): string {
   if (!dateFormat) {
-    // TODO: replace `hour12` with `Intl.Locale.prototype.getHourCycles` once there is broad browser support
     dateFormat = new Intl.DateTimeFormat(getCurrentLocale(), {
-      day: 'numeric',
+      day: '2-digit',
       month: 'short',
       year: 'numeric',
-      hour: 'numeric',
+      hour: '2-digit',
-      hour12: !Number.isInteger(Number(new Intl.DateTimeFormat([], {hour: 'numeric'}).format())),
+      hourCycle: new Intl.DateTimeFormat([], {hour: 'numeric'}).resolvedOptions().hourCycle === 'h12' ? 'h12' : 'h23',
       minute: '2-digit',
+      second: '2-digit',
     });
   }
   return dateFormat.format(date);