Four chart fixes in one pass.
1) Browser was rendering the <title> child as a native hover tooltip
that fought with the custom crosshair tooltip. Drop <title>; use
aria-label on the <svg role="img"> instead — same SR accessible name,
no native tooltip side-effect.
2/3) The hover crosshair clamped at today: bisector ran the saved
series, which ends at today, so future hovers stuck the dot at the
last saved point. Now the controller forks:
- Past hover: snap to nearest contribution via bisector.
- Future hover: snap to whole-week intervals along the projection
segment ([today, target_date]) and place the dot at the
interpolated y on the dashed line. Movement steps cleanly week
by week instead of pixel-by-pixel jitter.
4) Tooltip drops the redundant line:
- Past: "<date> · Saved: $X" (no Projected — there isn't one).
- Future: "<date> · Projected: $X" (no Saved — it's the future).
5) Y-axis tick label suppressed when its value falls within 5% of the
target line so "$2.5K" and "Target · $2,400" stop overlapping near
the right edge. Gridline stays; only the y-axis label drops.
Verified live via Playwright on House downpayment goal: <title>
absent, aria-label populated, past tooltip "Feb 10, 2026 · Saved:
$11,750", future tooltip "Nov 29, 2027 · Projected: $32,235",
neighbouring future x snaps to "Dec 13, 2027 · $32,704" (2-week jump
across the snapping boundary).
B — Step 2 of the create stepper used to echo Step 1 fields back at
the user in three labelled rows (Funding accounts: 2 · $123,456 balance;
Suggested monthly: $1,003/mo over 12 months). Replaces those rows with
a single derived sentence:
"Save $1,003/mo across 2 accounts to hit it on time."
If no target date is set: "Set a target date to project a finish line."
The previous "Suggested monthly" + "Funding accounts" rows are dropped;
review block shows only Name, "$12,000 by May 11 2027", and the
derived insight sentence.
L — All hard-coded English templates + currency symbols in the JS
controllers go through Stimulus values now:
- goal_stepper_controller: new {currency, summaryWithDate, summaryNoDate,
accountCountOne, accountCountOther, suggestedWithDate, suggestedNoDate}
values. Money formatted via Intl.NumberFormat(undefined, { style:
"currency", currency: this.currencyValue, maximumFractionDigits: 0 }).
- goal_projection_chart_controller: _fmtMoney upgraded to Intl.NumberFormat
(was $/€/£ ternary fallback that lost JPY/INR/CHF/...).
Locale: new goals.form_stepper.step2.review.{summary_*,account_count,
suggested_*}. Old funding_accounts / suggested_monthly keys retained
(unused by the new ERB) so any translator paths in flight don't break.
Verified live via Playwright: step-2 review reads "Save $1,003/mo
across 2 accounts to hit it on time." for a $12,000 / 12-month / 2-
account goal.
Chart had no way to read the value at a specific date — users had to
infer Saved amounts from line position relative to the y-axis labels
added in the previous commit.
- Transparent <rect> overlay covers the plot area + catches pointer.
- pointermove uses d3.bisector to snap to the nearest saved series
point, draws a dashed crosshair + a saved-line dot + a projection-line
dot (linearly interpolated between today and target).
- HTML tooltip lives inside the chart root (cleared on next _draw)
showing "date / Saved: $X / Projected: $Y". Clamps to viewport so it
doesn't overflow the card.
- pointerleave hides everything.
Pointer events unify mouse + touch — single handler covers both
desktop hover and mobile tap-and-drag. No keyboard nav yet; tracked as
follow-up (Stimulus controller is the right home but won't ship in
this round).
Chart had no value anchor on the y-axis; users had to read the target
line label to know what amount the saved line represented. Add 3
right-aligned y-ticks ($0, $25K, $50K-style K/M shorthand) plus faint
borderSubdued gridlines at the same y values. Left margin widens to 44
when room allows.
Mobile (<320px chart inner-width) keeps the original tight 16px left
margin and skips the y-axis entirely so the short-window readout
stays uncluttered.
Verified live: desktop reads $0/$20K/$40K + Target $50,000; 375px
viewport drops the y-axis text + keeps target line + x-ticks only.
