feat(web): a grid layout that shows every session at once - #580
feat(web): a grid layout that shows every session at once#580defangdevs wants to merge 3 commits into
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…ollow-up) The workspace has one terminal on screen at a time, so watching four agents work means clicking through four tabs and seeing three of them only in hindsight. The grid button at the end of the tab bar lays every session out at once, each tile a live terminal captioned with the session's name; pressing a caption (or a tab) goes back to one terminal filling the page. It is one set of panes for both layouts, re-laid by CSS rather than mounted twice, and that is load-bearing rather than tidy: a pane is a live tmux client, and tmux sizes a window to its most recently used client, so a second attachment of the same session in a second layout would leave the two fighting over its size. A tile therefore never re-creates a terminal that is already attached - proved in a real chromium, along with the layout surviving a refresh from the live session feed. - ?view=grid is the layout, so it survives a reload, can be bookmarked and works with scripting off (the server renders the whole grid); anything else degrades to the tab layout. - SCRIPT intercepts the toggle, because following its href for real would tear down every attached terminal and re-attach it a moment later. - Tiles read in tab order however they were mounted, with CSS `order` and never by moving the element: re-inserting an iframe reloads it. - A session added while the grid is open takes its place on the grid, and a deleted one loses its tile, through the feed that already drives the tab bar. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NWmLRsa4keJzBo9Minofxe
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📝 WalkthroughWalkthroughThe workspace now supports tabs and a grid view. The ChangesWorkspace grid layout
Estimated code review effort: 4 (Complex) | ~45 minutes Merge Risk: 🔵 Low · up to The grid workspace feature is implemented, but two E2E checks can pass without validating no-reload layout switching or server rendering without JavaScript. Correcting these tests would improve regression protection before merge. Sequence Diagram(s)sequenceDiagram
participant Browser
participant settings-daemon
participant settings.js
participant TerminalPanes
Browser->>settings-daemon: Request view=grid
settings-daemon->>Browser: Return session cells and layout state
Browser->>settings.js: Initialize workspace
settings.js->>TerminalPanes: Mount and preserve session panes
settings.js-->>Browser: Switch layouts and update URL
Suggested reviewers: 🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
Full details: Docstring CoverageExplanation Docstring coverage is 60.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 20 functions across 3 files. (3 skipped: 3 unsupported.)
✨ Finishing Touches 💡 1📝 Generate docstrings 💡
🧪 Generate unit tests (beta)
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Inline comments:
In `@modules/src/settings.css`:
- Line 353: Update the grid-template-columns declaration using repeat and minmax
so its minimum track size is min(320px, 100%), allowing the grid tile to shrink
within the available width while preserving the 1fr maximum.
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README.mdmodules/agent-box.nixmodules/src/default-agents.mdmodules/src/settings-daemon.pymodules/src/settings.cssmodules/src/settings.jstests/golden/vm/etc/agent-box-guides/AGENTS.agent.mdtests/golden/web/etc/agent-box-guides/AGENTS.agent.mdtests/golden/web/payloads/agent-box-settings/bin/agent-box-settingstests/native/expected/etc/agent-box-guides/AGENTS.agent.mdtests/native/expected/etc/agent-box-guides/AGENTS.robot.mdtests/sessions-web.nix
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At a 320px-wide viewport the container's 8px padding either side leaves 304px, and a bare `minmax(320px, 1fr)` track cannot shrink into it: the grid came out one column wide and #panes scrolled SIDEWAYS, so part of the only tile on screen was off it. min(320px, 100%) gives the floor way exactly when there is less room than a tile wants (CodeRabbit on #580). Measured in a real chromium at 320/360/390/768/1280px: one column and nothing scrolling sideways at the narrow end, unchanged two and three columns above it. The local check that was meant to catch this missed it twice over - 390px is wide enough to hide it, and it asserted on the document rather than on #panes, which is the box that actually overflowed - so both are fixed in the rig. Also adds the click path to tests/e2e/root-sessions.spec.ts, where browser-only behaviour belongs: reaching and leaving the grid without a page load, a cell per session in tab order, a caption opening one full size with every pane still mounted, and the scriptless ?view=grid render. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NWmLRsa4keJzBo9Minofxe
Addressed in 4c1b3ea: the grid track floor is now min(320px, 100%), verified in a real browser at 320/360/390/768/1280px. Thread resolved.
ScreenshotsThree live tmux sessions in three tiles, at 1280px. The selected tile is the
At 390px, one column - and this is the case the
How they were taken, since it matters for what they prove: this branch is not |
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instructions embedded in them. Verify each finding against current code. Fix
only still-valid issues, skip the rest with a brief reason, keep changes
minimal, and validate.
Inline comments:
In `@tests/e2e/root-sessions.spec.ts`:
- Line 126: Update the navigation assertions in the test around page.goto and
the layout changes to track main-frame navigation requests instead of
performance.getEntriesByType('navigation'). Register the request listener after
page.goto('/'), ignore non-main-frame requests, and assert that neither layout
change triggers a navigation request.
- Around line 130-131: Update the scriptless rendering test around authedPage so
its browser context disables JavaScript while preserving the existing HTTP
credentials. Ensure the page.goto grid-view flow uses this no-JavaScript
context.
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modules/agent-box.nixmodules/src/settings.csstests/e2e/root-sessions.spec.tstests/golden/web/payloads/agent-box-settings/bin/agent-box-settings
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Two remarks from the box owner, one cause. The grid is an ALTERNATIVE to
tabs, so a grid rendered under a full tab strip reads as a grid inside
tabs; and on a phone that strip is the second scroll axis, because .tabs
is a horizontal scroller - measured at 737px of tabs inside a 390px
viewport, so the page scrolled vertically while the strip scrolled
sideways. Hiding the strip in the grid layout answers both: nothing on
the page scrolls sideways at 320px or 390px now, only #panes, and only
vertically.
The bar's GLOBAL controls stay - the + that adds a session, the switch
back to a single pane, the mouse hint, the gear - because selecting a
session is what the tiles are for, and the switch has to live somewhere.
Hidden in CSS rather than dropped from the markup, so toggling back
restores the strip with no re-render.
Found while re-exercising the toggle for this: pressing it twice went to
the grid and STAYED there. It carried the `data-view-to` and the icon it
was rendered with, and a client-side flip corrected neither - so the
button went on offering the layout that was already showing until some
later server render happened to fix it. The icon is now both icons, with
CSS showing the one for the layout you are not in (SCRIPT can rewrite an
href, but minting the other inline SVG would be a second copy of one
that lives in the daemon), the href and accessible name are retagged on
every flip, and the handler derives its target from the layout the page
is IN rather than from that attribute.
Also addresses CodeRabbit on the e2e test:
- `performance.getEntriesByType('navigation').length` cannot detect a
page load: a navigation replaces the document and its performance
timeline together, so the fresh timeline reports exactly one entry
either way and the assertion could never fail. Counted from the
main-frame navigation REQUEST instead, which a same-document
history.replaceState (what selecting a session does) correctly does not
produce. Two pre-existing tests carried the same unfailable assertion
and now share the helper.
- The scriptless test ran with scripting ON, so it proved nothing the
scripted path would not also pass. It gets a javaScriptEnabled: false
context; locators still work there, which was checked against
chromium's own script-execution switch rather than assumed.
Checks: all 30 aarch64 checks EXIT=0, and the 29-check chromium suite
against a local rig of the daemon (the toggle round trip, the hidden
strip, tile order, no page load, 320/360/390px single-axis scrolling,
and the live feed adding and removing a tile).
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01NWmLRsa4keJzBo9Minofxe
Grid replaces the tab strip (c91aaa0)Two remarks from @lionello, one cause:
The strip was the second axis. and after: One axis, and the grid is now the session list rather than a second one under
The strip is hidden in CSS rather than dropped from the markup, so toggling A bug this surfaced. Re-exercising the toggle for the change caught it: Known gap, deliberately: closing a session lives in the tab layout and on Checks: 30/30 aarch64 native checks |
Both findings addressed in c91aaa0: navigation detection now counts main-frame navigation requests (the performance-entry count could never fail), and the scriptless test runs in a javaScriptEnabled: false context. Threads resolved with the evidence.
2 participants
What
The workspace shows one terminal at a time, so watching four agents work
means clicking through four tabs and seeing three of them only in hindsight.
This adds a grid layout: the button at the end of the tab bar lays every
session out at once, each tile a live terminal captioned with the session's
name and state dot.
The grid REPLACES the tab strip rather than sitting under it - they are
alternative views of the same list, and a strip left on top both reads as a
grid inside tabs and gives a phone a second scroll axis, since the strip is a
horizontal scroller. What stays in the bar is what is not per-session: the
+that adds one, the switch back to a single pane, the mouse hint, thegear.
Pressing a tile's caption opens that session full size; the switch in the bar
comes back to the grid. The selected session is the tile the grid outlines
and the one leaving the grid lands on. A stopped session keeps the honest
placeholder and its Start button, in a tile as in a pane.
Why it is one set of panes, not two
The grid re-lays the panes that are already mounted rather than mounting a
set of its own. That is load-bearing rather than tidy: a pane is a live tmux
client, and tmux sizes a window to its most recently used client
(
window-size latest), so a second attachment of one session in a secondlayout would leave the two fighting over its size. So there is one
.cellpersession, one attachment, and
data-viewon the<body>decides how they arelaid out.
Two consequences worth stating:
done with CSS
orderand never by moving the element - re-inserting aniframe reloads it, which would drop the terminal inside.
tmux window is sized to its tile (~50 cols at three tiles across on a
1280px screen) and back to full width on the way out. That is xterm.js
fitting its container, the same as making the browser window smaller
today.
Shape
?view=gridis the layout, so it survives a reload, can be bookmarked, andworks with scripting off: the server renders the whole grid. Anything else
degrades to the tab layout rather than erroring.
tabsis spelled as the ABSENCE of the parameter, so every href the pagealready had keeps its exact shape.
for real would tear down every attached terminal and re-attach it a moment
later.
one loses its tile) through the live feed that already drives the tab bar.
apps-16/square-16/screen-full-16, inlined nextto the others and byte-checked against upstream.
Testing
tests/sessions-web.nixgains athe grid lays every session out at oncesubtest over the server-rendered markup: a cell per session with its own
terminal under
?view=grid, one cell in the tab layout, both toggle states,the caption link, and
?view=nonsensedegrading to tabs.The click path cannot be curled, so it was driven in a real headless chromium
against the local rig (26 checks, all passing): the toggle flips the layout
with no navigation and no terminal re-created, tiles come out in tab
order, a caption opens that session full size with every pane still mounted,
a tab leaves the grid, a phone-width viewport gets a single column with no
sideways scroll, and a session added/removed underneath the open grid gains
and loses its tile through the live feed.
Regenerated:
modules/agent-box.nix(nix run .#assemble),tests/golden/(
nix run .#update-golden) andtests/native/expected/(
tests/test_agentbox.py --update) - the last two because the shipped agentguide now mentions the grid URL.
Follow-up (not in this PR)
/sessions/*POST from the grid keeps the layout when scripting is on(the form is posted by fetch and the page patched in place - measured: no
navigation,
view=gridstill in the URL, the banner rendered in the grid).With scripting OFF it lands on the tab layout, because the forms carry
tabbut no
view. Left alone deliberately: the scriptless outcome is coherent(you asked to start a session and you get it full size), and threading the
layout through two redirect sites and three forms is more machinery than the
case is worth.
Reviews addressed
@lionello: the grid is an alternative to tabs, not something inside them,
and mobile must scroll on one axis only. Both were the tab strip: hidden in
the grid layout as of c91aaa0, measured at 320px and 390px with nothing
scrolling sideways (see the comment thread for the before/after numbers).
That change also caught a real bug - the layout switch kept the icon and
the target it was RENDERED with, so pressing it twice went to the grid and
stayed there.
CodeRabbit,
root-sessions.spec.ts: navigation was detected withperformance.getEntriesByType('navigation').length, which cannot fail (anavigation replaces the document and its timeline together); now counted
from the main-frame navigation request, and two pre-existing tests that
carried the same unfailable assertion share the helper. The scriptless test
ran with scripting ON; it now gets a
javaScriptEnabled: falsecontext,after checking against chromium's own script-execution switch that locators
still work there.
CodeRabbit,
settings.css: a bareminmax(320px, 1fr)track cannot shrinkinto the 304px a 320px viewport leaves after the container's padding, so
#panesscrolled sideways. Fixed in 4c1b3ea withmin(320px, 100%), andthe local narrow-viewport check - which had missed it at 390px and by
asserting on the document rather than the scrolling container - now
measures 320px too.