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fix(web): cut-off model picker labels show their full text on hover - #31930
A user pointed out that model picker labels get cut off with no way to read them. The row name got a hover title in #28409, but the sub-provider label ("OpenCode …", "Anthro…"), the model name above the effort column, and the composer trigger label still had none.
Each of these now shows its full text as a native title on hover, only when it is actually cut off. The row name's inline logic moved into a small titleWhenTruncated helper so all four use the same code. The composer trigger still has no hover tooltip (#28076 removed it on purpose). It only gets a title when its label is cut off.
The other complaint, that the popup moves while you switch models, was from v0.1.6. #28307 fixed it in v0.1.7. I checked again on main at 1280, 700 and 620 px: switching between seven OpenCode models moved the trigger's left edge from 307 to 431 px, and the popup stayed at the same place.
Proof: browser check against a dev server with OpenCode turned on. Hovering a cut-off label set title to the full text, for example OpenCode on the sub-provider and DeepSeek V4.1 Flash Free on the effort header and the trigger. Labels that fit got no title, and a label that changes while the pointer stays on it drops the old title. vp run check:changed passes.
Before (left) and after (right), recorded in a headed Chrome. The row name already had a tooltip. The cut-off "OpenC…" sub-provider and the model name above the effort column now get one too.
Macroscope's review found this PR approvable — Truncated model-picker labels now show their full text on hover using a shared helper. The change is limited to presentation and does not alter model selection or stored data.
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Walkthrough
Added a shared utility that sets a label’s title to its full text when the label overflows. Applied it to model and provider labels in the effort header and model picker.
Changes: Model label titles
Layer / File(s)
Summary
Shared handler and label usage apps/web/src/lib/utils.ts, apps/web/src/components/chat/ComposerModelEffort.tsx, apps/web/src/components/chat/ModelListRow.tsx, apps/web/src/components/chat/ProviderModelPicker.tsx
Added titleWhenTruncated, which sets the title when text overflows and clears it otherwise. Applied the handler to the effort-header model label, model and sub-provider labels, and composer-owned picker trigger text. Labels in the effort header and picker use keys based on their current text.
pingdotgg/t3code#29099: The PR adds hover titles for truncated model and provider labels. The issue also requests provider instance names and slugs, which these changes do not address.
Possibly related PRs
pingdotgg/t3code#28069: This PR concerns the effort-header model label and its picker context.
pingdotgg/t3code#29140: This PR also adds hover titles for truncated model and sub-provider labels.
pingdotgg/t3code#24205: This PR changes the displayed composer and selected-model labels that receive truncation-based titles here.
Suggested reviewers:juliusmarminge
Merge Risk: Minimal · previous review 7dcf8
Truncated model labels gain hover titles, with no material merge risk identified.
Pre-merge checks: 4
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The title clearly describes the main change: showing full text for truncated model picker labels on hover.
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Actionable comments posted: 2
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Inline comments:
Review comments at @apps/web/src/components/chat/ProviderModelPicker.tsx:
- Around line 391-399: Update the composer trigger span in ProviderModelPicker
to key it by the same title-content expression passed to titleWhenTruncated, so
it remounts when that source changes and cannot retain a stale native title.
Preserve the existing triggerTextProps and pointer-enter behavior.
Review comments at @apps/web/src/lib/utils.ts:
- Line 27: Update the title assignment for `element` so it is recomputed
whenever the label changes, including keyboard model selection, rather than only
on pointer entry; use the current label and clear the title when it fits within
the element.
---
Failed pre-merge checks:
- Description check:
Link the triaged issue or maintainer approval, including the approval comment,
or explain why this is a small, focused fix of an obvious bug. Add before/after
screenshots from an environment that can show the native tooltip. Add a
recording if needed to demonstrate the interaction.
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Closing in favor of #29140, which fixes the same cut-off labels and adds browser tests. This PR also gave the composer trigger label a title when cut off. #29140 does not cover that.
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A user pointed out that model picker labels get cut off with no way to read them. The row name got a hover title in #28409, but the sub-provider label ("OpenCode …", "Anthro…"), the model name above the effort column, and the composer trigger label still had none.
Each of these now shows its full text as a native title on hover, only when it is actually cut off. The row name's inline logic moved into a small
titleWhenTruncatedhelper so all four use the same code. The composer trigger still has no hover tooltip (#28076 removed it on purpose). It only gets a title when its label is cut off.The other complaint, that the popup moves while you switch models, was from v0.1.6. #28307 fixed it in v0.1.7. I checked again on main at 1280, 700 and 620 px: switching between seven OpenCode models moved the trigger's left edge from 307 to 431 px, and the popup stayed at the same place.
Proof: browser check against a dev server with OpenCode turned on. Hovering a cut-off label set
titleto the full text, for exampleOpenCodeon the sub-provider andDeepSeek V4.1 Flash Freeon the effort header and the trigger. Labels that fit got no title, and a label that changes while the pointer stays on it drops the old title.vp run check:changedpasses.Before (left) and after (right), recorded in a headed Chrome. The row name already had a tooltip. The cut-off "OpenC…" sub-provider and the model name above the effort column now get one too.
📹 screen recording
Reviewed with sol-loop: 2 passes with GPT-6.1 Sol. Sol verdict: approved
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