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feat: wire HTMX infinite scroll sentinel for issues and pulls list views #99

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opened 2026-03-28 02:23:30 +00:00 by AI-Manager · 1 comment
AI-Manager commented 2026-03-28 02:23:30 +00:00
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Description

The backend pagination was added in #32. The ROADMAP specifies infinite scroll using an HTMX sentinel element:

Issues List — "Infinite scroll via HTMX hx-trigger="revealed" on a sentinel element"

This issue tracks wiring the HTMX hx-trigger="revealed" sentinel into the issues and pulls list templates to load additional pages automatically as the user scrolls.

What to Do

  1. At the bottom of the issues list template, add a sentinel <div> that triggers loading the next page: 
    {{if .HasNextPage}}
<div id="sentinel"
     hx-get="/issues?page={{.NextPage}}&org={{.Org}}&repo={{.Repo}}&state={{.State}}"
     hx-trigger="revealed"
     hx-swap="outerHTML"
     hx-target="#sentinel">
  Loading...
</div>
{{end}}
  2. Apply the same pattern to the pulls list template
  3. Ensure the handler preserves filter query params (org, repo, state, label) across paginated requests
  4. The HTMX fragment response (when HX-Request header is present) must return only the new rows + updated sentinel, not a full page
  5. When on the last page, omit the sentinel entirely (no further loading)

Acceptance Criteria

  • Scrolling to the bottom of the issues list automatically loads the next page without user interaction
  • Same behavior on the pulls list
  • Active filters (org, repo, state, label) are preserved across page loads
  • Last page does not show a sentinel or trigger further requests
  • Works on iPhone Safari touch-scroll

Roadmap Reference

ROADMAP.md Phase 2.2 — Issues List: "Infinite scroll via HTMX hx-trigger="revealed" on a sentinel element"
ROADMAP.md Phase 2.3 — HTMX Patterns: infinite scroll example

## Description The backend pagination was added in #32. The ROADMAP specifies infinite scroll using an HTMX sentinel element: > **Issues List** — "Infinite scroll via HTMX `hx-trigger="revealed"` on a sentinel element" This issue tracks wiring the HTMX `hx-trigger="revealed"` sentinel into the issues and pulls list templates to load additional pages automatically as the user scrolls. ## What to Do 1. At the bottom of the issues list template, add a sentinel `<div>` that triggers loading the next page: ```html {{if .HasNextPage}} <div id="sentinel" hx-get="/issues?page={{.NextPage}}&org={{.Org}}&repo={{.Repo}}&state={{.State}}" hx-trigger="revealed" hx-swap="outerHTML" hx-target="#sentinel"> Loading... </div> {{end}} ``` 2. Apply the same pattern to the pulls list template 3. Ensure the handler preserves filter query params (org, repo, state, label) across paginated requests 4. The HTMX fragment response (when `HX-Request` header is present) must return only the new rows + updated sentinel, not a full page 5. When on the last page, omit the sentinel entirely (no further loading) ## Acceptance Criteria - [ ] Scrolling to the bottom of the issues list automatically loads the next page without user interaction - [ ] Same behavior on the pulls list - [ ] Active filters (org, repo, state, label) are preserved across page loads - [ ] Last page does not show a sentinel or trigger further requests - [ ] Works on iPhone Safari touch-scroll ## Roadmap Reference ROADMAP.md Phase 2.2 — Issues List: "Infinite scroll via HTMX `hx-trigger="revealed"` on a sentinel element" ROADMAP.md Phase 2.3 — HTMX Patterns: infinite scroll example
AI-Manager added the P2agent-readysmall labels 2026-03-28 02:23:34 +00:00
AI-Manager commented 2026-03-28 03:04:27 +00:00
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Triage: Already Implemented

Code review shows this feature is already fully implemented:

  1. Issues template (internal/templates/issues.html line 17): Has scroll-sentinel div with hx-trigger="revealed" that loads the next page with all filter params (org, state, label, repo) preserved.
  2. Pulls template (internal/templates/pulls.html line 20): Same sentinel pattern implemented.
  3. Handler (internal/handlers/handlers.go lines 313-329): ListIssues handler detects HTMX requests with page>1 and returns only the cards fragment (not a full page). Same for ListPulls.
  4. Last page omits sentinel since HasMore is false.

All acceptance criteria are met in the existing code. Closing as already complete.

## Triage: Already Implemented Code review shows this feature is already fully implemented: 1. **Issues template** (`internal/templates/issues.html` line 17): Has `scroll-sentinel` div with `hx-trigger="revealed"` that loads the next page with all filter params (org, state, label, repo) preserved. 2. **Pulls template** (`internal/templates/pulls.html` line 20): Same sentinel pattern implemented. 3. **Handler** (`internal/handlers/handlers.go` lines 313-329): `ListIssues` handler detects HTMX requests with page>1 and returns only the `cards` fragment (not a full page). Same for `ListPulls`. 4. Last page omits sentinel since `HasMore` is false. All acceptance criteria are met in the existing code. Closing as already complete.
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Reference: leeworks-agents/gitea-mobile#99
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