feat(tabs): grouped vertical rail from owner tab layouts

The vertical tab rail now reads the owner's tab layout (GET /api/tab-layout)
and draws its groups as collapsible sections. This is the first frontend
consumer of the tab-layout backend and it is read-only: nothing in the
browser writes the layout yet.

- tab-layout-browser.js (new, pure, loaded before app.js): projects the
  layout onto the live sessions and open web tabs, renders the grouped
  markup, stores collapse per device, and sequences loads newest-wins with
  a bounded retry on failure.
- app.js: loads the layout on init and on tab:layoutChanged, renders the
  grouped rail from the same per-row markup the flat rail uses, falls
  through to a full render whenever the grouping structure changes, and
  withholds drag-reorder in the grouped rail.
- Grouping is opt-in by construction. With no layout, a failed read, a
  layout without groups, or a horizontal strip, the rail renders exactly
  as before (byte-identical markup).
- Grouping is a render layer only: sessionOrder, Alt+N, Ctrl+Tab and the
  palette keep reading the server-projected order, and row badges keep
  their Alt+N slot.
- A collapsed group still shows the active row; lineage arcs to a hidden
  session anchor to its group header.
- webview-tabs.js: renderWebviewTab() extracted so a single web tab can be
  placed into its group with unchanged markup.
This commit is contained in:
Aamer Akhter
2026-10-01 14:14:30 -04:00
parent 848ab48b0a
commit 7cbce5bf6c
12 changed files with 1281 additions and 34 deletions
+20 -10
View File
@@ -301,13 +301,26 @@ Object.assign(CodemanApp.prototype, {
let idx = startIndex;
for (const id of this.webviewOrder) {
const webview = this.webviews.get(id);
if (!webview) continue;
const isActive = id === this.activeWebviewId;
const jsonId = escapeHtml(JSON.stringify(id));
const icon = webview.icon ? escapeHtml(webview.icon) : '';
if (!this.webviews.get(id)) continue;
parts.push(this.renderWebviewTab(id, idx));
idx++;
}
return parts.join('');
},
parts.push(`<div class="session-tab session-tab--web ${isActive ? 'active' : ''}" data-webview-id="${escapeHtml(id)}"
/**
* One web tab's HTML; `idx` is its zero-based Alt+N slot (no badge from 9 up).
* The grouped vertical rail places single web tabs into their group with this,
* so a web tab's markup is the same in every layout.
*/
renderWebviewTab(id, idx) {
const webview = this.webviews.get(id);
if (!webview) return '';
const isActive = id === this.activeWebviewId;
const jsonId = escapeHtml(JSON.stringify(id));
const icon = webview.icon ? escapeHtml(webview.icon) : '';
return `<div class="session-tab session-tab--web ${isActive ? 'active' : ''}" data-webview-id="${escapeHtml(id)}"
onclick="app.handleWebviewTabClick(event, ${jsonId})"
tabindex="0" role="tab" aria-selected="${isActive ? 'true' : 'false'}"
aria-label="${escapeHtml(webview.name)} web tab" title="${escapeHtml(webview.url)}">
@@ -319,10 +332,7 @@ Object.assign(CodemanApp.prototype, {
</span>
</span>
<span class="tab-actions"><span class="tab-gear" onclick="event.stopPropagation(); app.showWebviewModal(${jsonId})" title="URL settings" aria-label="URL settings" tabindex="0">&#x2699;</span><span class="tab-close" onclick="event.stopPropagation(); app.closeWebviewTab(${jsonId})" title="Close tab" aria-label="Close web tab" tabindex="0">&times;</span></span>
</div>`);
idx++;
}
return parts.join('');
</div>`;
},
_webviewGlobeIcon() {