fix: honor the floatingUIOptions positioning strategy - #3480
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No actionable comments were generated in the recent review. 🎉 ℹ️ Recent review info⚙️ Run configurationConfiguration used: defaults Review profile: CHILL Plan: Pro Plus Run ID: 📒 Files selected for processing (4)
🚧 Files skipped from review as they are similar to previous changes (4)
📝 WalkthroughWalkthroughThe change applies Floating UI’s resolved ChangesPositioning strategy support
Estimated code review effort: 3 (Moderate) | ~20 minutes Mergeability Score: ⚪ Minimal · up to The positioning strategy change is covered by the supplied unit and Cypress verification, and no actionable merge-blocking risk remains. Sequence Diagram(s)sequenceDiagram
participant Tour
participant FloatingUI
participant StepElement
Tour->>FloatingUI: Compute attached-step position
FloatingUI-->>Tour: Return coordinates and strategy
Tour->>StepElement: Apply coordinates and CSS position
StepElement-->>Tour: Maintain alignment during scrolling
🚥 Pre-merge checks | ✅ 5✅ Passed checks (5 passed)
✨ Finishing Touches📝 Generate docstrings
🧪 Generate unit tests (beta)
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Actionable comments posted: 2
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Inline comments:
In `@shepherd.js/src/step.ts`:
- Around line 162-164: Update the positioning documentation near the strategy
description to identify both centered-step cases: steps without an attachTo
element and steps whose attachTo lacks an on value. State that both cases use
position fixed and ignore strategy.
In `@shepherd.js/test/cypress/examples/positioning-strategy.html`:
- Line 1: Add the HTML5 doctype declaration before the html root element in the
positioning-strategy fixture, ensuring Cypress renders and tests the page in
standards mode.
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Configuration used: defaults
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Run ID: cfbdee86-3a39-41eb-9afb-5b13effd7b4c
📒 Files selected for processing (8)
docs-src/src/content/docs/guides/usage.mddocs-src/src/content/docs/recipes/cookbook.mdshepherd.js/src/step.tsshepherd.js/src/utils/floating-ui.tsshepherd.js/test/cypress/examples/positioning-strategy.htmlshepherd.js/test/cypress/integration/positioning-strategy.cy.jsshepherd.js/test/unit/tour.spec.jsshepherd.js/test/unit/utils/floating-ui-position.spec.js
Steps configured with `floatingUIOptions: { strategy: 'fixed' }` drifted away
from their target on every scroll. The strategy did reach `computePosition`,
which then returned viewport-relative coordinates, but those coordinates were
written into an element hardcoded to `position: absolute`. Absolute coordinates
are page-relative, so the step and its target separated by exactly the scroll
delta.
Read `strategy` off the resolved `computePosition` payload and use it for the
CSS `position` of attached steps. The resolved payload is the source of truth
because it names the coordinate space the returned `x`/`y` are already in. The
default path is unchanged, since `getFloatingUIOptions` seeds
`strategy: 'absolute'` and Floating UI echoes it back, so steps that never set
a strategy still resolve to `position: absolute`.
Centered steps deliberately keep `position: fixed`. They are positioned with
`left`/`top: 50%` plus a `translate(-50%, -50%)`, and those percentages must
resolve against the viewport rather than the document, so following the
strategy there would regress every default-configured centered step.
Steps that opt into `strategy: 'fixed'` now leave normal document flow, so a
transformed or filtered ancestor becomes their containing block and their
`z-index` stacks inside that ancestor's context. That is inherent to
`position: fixed` and only reaches tours that ask for it.
Unit tests run in happy-dom, which has no layout engine, so the drift itself is
covered by a Cypress spec that measures the target-to-step vector across a
window scroll; it fails without this change. The unit tests stub the Floating
UI boundary to pin the exact coordinates and strategy written to the element.
Fixes #3269
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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Steps configured with
floatingUIOptions: { strategy: 'fixed' }drifted awayfrom their target on every scroll. The strategy did reach
computePosition,which then returned viewport-relative coordinates, but those coordinates were
written into an element hardcoded to
position: absolute. Absolute coordinatesare page-relative, so the step and its target separated by exactly the scroll
delta.
Read
strategyoff the resolvedcomputePositionpayload and use it for theCSS
positionof attached steps. The resolved payload is the source of truthbecause it names the coordinate space the returned
x/yare already in. Thedefault path is unchanged, since
getFloatingUIOptionsseedsstrategy: 'absolute'and Floating UI echoes it back, so steps that never seta strategy still resolve to
position: absolute.Centered steps deliberately keep
position: fixed. They are positioned withleft/top: 50%plus atranslate(-50%, -50%), and those percentages mustresolve against the viewport rather than the document, so following the
strategy there would regress every default-configured centered step.
Steps that opt into
strategy: 'fixed'now leave normal document flow, so atransformed or filtered ancestor becomes their containing block and their
z-indexstacks inside that ancestor's context. That is inherent toposition: fixedand only reaches tours that ask for it.Unit tests run in happy-dom, which has no layout engine, so the drift itself is
covered by a Cypress spec that measures the target-to-step vector across a
window scroll; it fails without this change. The unit tests stub the Floating
UI boundary to pin the exact coordinates and strategy written to the element.
Fixes #3269
Testing
types:check/ build all clean.position: strategytoposition: 'absolute'fails it by exactly the scroll delta — Using floatingUIOptions.strategy = "fixed" on a step breaks scrolling #3269 reproduced numerically in Chrome — while both default-strategy tests keep passing, so the spec targets the bug rather than positioning in general.step.optionsinstead of the resolved payload, and applying the strategy to the centered branch are each caught.Note on the default
The default strategy already tracks a target through page and ancestor scroll — there's a Cypress test asserting it.
strategy: 'fixed'is for the cases Floating UI documents (afixedtarget, or escaping a clipping ancestor), not a general fix for scrolling containers. Opting into it also takes the step out of document flow, so a transformed or filtered ancestor becomes its containing block and itsz-indexstacks in that context.🤖 Generated with Claude Code
Summary by CodeRabbit
New Features
absoluteorfixedstrategies.Documentation
Tests