Swipeable calendar

js/views/MealPlanner.js

@@ -32,10 +32,11 @@ import {
     createCalendarTopbarHTML,
     createCalendarWeekdayHeaderHTML,
     isCalendarOnToday,
+    renderCalendarGrid,
     renderCollapsibleCalendar,
     syncCalendarTodayButton,
     syncCollapsibleCalendarMode,
-} from '../ui/mealCalendar.js?v=11';
+} from '../ui/mealCalendar.js?v=14';
 import {
     filterRecipesByQuery,
     renderRecipeGrid,
@@ -76,9 +77,7 @@ export function getMealPlannerHTML() {
             <div class="min-h-12 px-4 pt-4 pb-3 flex items-center justify-between gap-3 min-w-0">
                 <h1 class="min-w-0 flex-1 truncate" style="margin:0;padding:0;color:rgb(var(--text-emphasis-rgb));font-family:var(--app-font);font-size:18px;font-weight:700;line-height:1.2;letter-spacing:-0.02em;">Plan posiłków</h1>
                 ${createCalendarTopbarHTML({
-        prevId: 'cal-prev',
         todayId: 'cal-go-today',
-        nextId: 'cal-next',
         wrapperClass: 'flex shrink-0 items-center justify-end',
     })}
             </div>
@@ -201,52 +200,214 @@ function bindCalendarSwipeGesture(state, rerender) {
     const zone = document.getElementById('calendar-swipe-zone');
     if (!zone) return;
 
+    const ANIMATION_MS = 260;
+
+    let startX = 0;
     let startY = 0;
     let ptrId = null;
     let moved = false;
+    let axisLocked = null;
+    let suppressClickUntil = 0;
+    let animatingNav = false;
+
+    let dragWrap = null;
+    let wrapWidth = 0;
+    let prevGhost = null;
+    let nextGhost = null;
+    let prevWrapPosition = '';
+    let prevWrapOverflow = '';
+
+    const getActiveWrap = () => document.getElementById(
+        state.mode === 'week' ? 'calendar-week-wrap' : 'calendar-month-wrap',
+    );
+
+    const resolveDayStateForGhost = (day, meta) => {
+        const today = startOfDay(new Date());
+        const isSelected = sameDay(day, state.selected);
+        const isPast = day.getTime() < today.getTime();
+        return {
+            disabled: isPast && !isSelected,
+            dimmed: (isPast || (meta.mode === 'month' && !meta.inCurrentMonth)) && !isSelected,
+            showIndicator: meta.mode === 'month'
+                ? meta.inCurrentMonth && dayHasAnyMeal(state.plans, day)
+                : dayHasAnyMeal(state.plans, day),
+        };
+    };
+
+    const buildGhost = (anchorDate, mode) => {
+        if (!dragWrap) return null;
+        const ghost = dragWrap.cloneNode(true);
+        ghost.removeAttribute('id');
+        ghost.querySelectorAll('[id]').forEach((el) => el.removeAttribute('id'));
+        ghost.style.position = 'absolute';
+        ghost.style.top = '0';
+        ghost.style.width = '100%';
+        ghost.style.pointerEvents = 'none';
+        ghost.setAttribute('aria-hidden', 'true');
+        let ghostGridEl = null;
+        ghost.querySelectorAll('.grid-cols-7').forEach((g) => {
+            if (!g.classList.contains('text-center')) ghostGridEl = g;
+        });
+        if (ghostGridEl) {
+            renderCalendarGrid({
+                gridEl: ghostGridEl,
+                mode,
+                anchorDate,
+                selectedDate: state.selected,
+                resolveDayState: resolveDayStateForGhost,
+            });
+        }
+        return ghost;
+    };
+
+    const activateCarousel = () => {
+        dragWrap = getActiveWrap();
+        if (!dragWrap) return;
+        wrapWidth = dragWrap.getBoundingClientRect().width || zone.getBoundingClientRect().width;
+        prevWrapPosition = dragWrap.style.position;
+        prevWrapOverflow = dragWrap.style.overflow;
+        dragWrap.style.position = 'relative';
+        dragWrap.style.overflow = 'visible';
+
+        const prevAnchor = state.mode === 'week'
+            ? addWeeks(state.weekStart, -1)
+            : addMonths(state.monthAnchor, -1);
+        const nextAnchor = state.mode === 'week'
+            ? addWeeks(state.weekStart, 1)
+            : addMonths(state.monthAnchor, 1);
+
+        prevGhost = buildGhost(prevAnchor, state.mode);
+        nextGhost = buildGhost(nextAnchor, state.mode);
+        if (prevGhost) {
+            prevGhost.style.left = `-${wrapWidth}px`;
+            dragWrap.appendChild(prevGhost);
+        }
+        if (nextGhost) {
+            nextGhost.style.left = `${wrapWidth}px`;
+            dragWrap.appendChild(nextGhost);
+        }
+        dragWrap.style.willChange = 'transform';
+        dragWrap.style.transition = 'none';
+    };
+
+    const clearCarousel = () => {
+        if (prevGhost?.parentNode) prevGhost.parentNode.removeChild(prevGhost);
+        if (nextGhost?.parentNode) nextGhost.parentNode.removeChild(nextGhost);
+        prevGhost = null;
+        nextGhost = null;
+        if (dragWrap) {
+            dragWrap.style.transition = '';
+            dragWrap.style.transform = '';
+            dragWrap.style.willChange = '';
+            dragWrap.style.position = prevWrapPosition;
+            dragWrap.style.overflow = prevWrapOverflow;
+        }
+        dragWrap = null;
+    };
+
+    const setTranslate = (x, ms) => {
+        if (!dragWrap) return;
+        dragWrap.style.transition = ms ? `transform ${ms}ms ease` : 'none';
+        dragWrap.style.transform = `translate3d(${x}px, 0, 0)`;
+    };
 
     zone.addEventListener('pointerdown', (e) => {
-        if (ptrId !== null) return;
+        if (ptrId !== null || animatingNav) return;
+        if (e.pointerType === 'mouse' && e.button !== 0) return;
+        startX = e.clientX;
         startY = e.clientY;
         ptrId = e.pointerId;
         moved = false;
+        axisLocked = null;
+        try { zone.setPointerCapture(e.pointerId); } catch (_) {}
     });
 
     zone.addEventListener('pointermove', (e) => {
         if (e.pointerId !== ptrId) return;
-        if (Math.abs(e.clientY - startY) > 10) moved = true;
+        const dx = e.clientX - startX;
+        const dy = e.clientY - startY;
+        if (!moved && (Math.abs(dx) > 6 || Math.abs(dy) > 6)) {
+            moved = true;
+            axisLocked = Math.abs(dx) >= Math.abs(dy) ? 'x' : 'y';
+            if (axisLocked === 'x') activateCarousel();
+        }
+        if (axisLocked === 'x' && dragWrap) {
+            setTranslate(dx, 0);
+        }
     });
 
     zone.addEventListener('pointerup', (e) => {
         if (e.pointerId !== ptrId) return;
+        const dx = e.clientX - startX;
         const dy = e.clientY - startY;
         ptrId = null;
 
-        if (!moved || Math.abs(dy) < 30) return;
+        if (!moved) return;
 
-        let switched = false;
-        if (state.mode === 'week' && dy > 30) {
-            state.mode = 'month';
-            state.monthAnchor = startOfMonth(state.selected);
-            switched = true;
-        } else if (state.mode === 'month' && dy < -30) {
-            state.mode = 'week';
-            state.weekStart = startOfWeekMonday(state.selected);
-            switched = true;
+        const horizontal = axisLocked === 'x';
+
+        if (horizontal && dragWrap) {
+            if (Math.abs(dx) < 40) {
+                setTranslate(0, ANIMATION_MS);
+                setTimeout(clearCarousel, ANIMATION_MS + 20);
+                return;
+            }
+            suppressClickUntil = performance.now() + 500;
+            animatingNav = true;
+            const targetX = dx > 0 ? wrapWidth : -wrapWidth;
+            setTranslate(targetX, ANIMATION_MS);
+            setTimeout(() => {
+                if (state.mode === 'week') {
+                    state.weekStart = addWeeks(state.weekStart, dx > 0 ? -1 : 1);
+                    if (!weekContains(state.weekStart, state.selected)) {
+                        state.selected = new Date(state.weekStart);
+                    }
+                } else {
+                    state.monthAnchor = addMonths(state.monthAnchor, dx > 0 ? -1 : 1);
+                    if (!sameMonth(state.monthAnchor, state.selected)) {
+                        state.selected = startOfMonth(state.monthAnchor);
+                    }
+                }
+                clearCarousel();
+                rerender();
+                animatingNav = false;
+            }, ANIMATION_MS);
+            return;
         }
 
-        if (switched) {
-            zone.addEventListener('click', (ev) => {
-                ev.stopPropagation();
-                ev.preventDefault();
-            }, { capture: true, once: true });
-            rerender();
+        if (!horizontal && Math.abs(dy) >= 30) {
+            let triggered = false;
+            if (state.mode === 'week' && dy > 0) {
+                state.mode = 'month';
+                state.monthAnchor = startOfMonth(state.selected);
+                triggered = true;
+            } else if (state.mode === 'month' && dy < 0) {
+                state.mode = 'week';
+                state.weekStart = startOfWeekMonday(state.selected);
+                triggered = true;
+            }
+            if (triggered) {
+                suppressClickUntil = performance.now() + 350;
+                rerender();
+            }
         }
     });
 
+    zone.addEventListener('click', (ev) => {
+        if (performance.now() < suppressClickUntil) {
+            ev.stopPropagation();
+            ev.preventDefault();
+            suppressClickUntil = 0;
+        }
+    }, { capture: true });
+
     zone.addEventListener('pointercancel', () => {
         ptrId = null;
         moved = false;
+        if (dragWrap) {
+            setTranslate(0, ANIMATION_MS);
+            setTimeout(clearCarousel, ANIMATION_MS + 20);
+        }
     });
 }
 
@@ -1181,36 +1342,6 @@ export function setupMealPlanner() {
         rerender();
     });
 
-    document.getElementById('cal-prev')?.addEventListener('click', () => {
-        if (state.mode === 'week') {
-            state.weekStart = addWeeks(state.weekStart, -1);
-            if (!weekContains(state.weekStart, state.selected)) {
-                state.selected = new Date(state.weekStart);
-            }
-        } else {
-            state.monthAnchor = addMonths(state.monthAnchor, -1);
-            if (!sameMonth(state.monthAnchor, state.selected)) {
-                state.selected = startOfMonth(state.monthAnchor);
-            }
-        }
-        rerender();
-    });
-
-    document.getElementById('cal-next')?.addEventListener('click', () => {
-        if (state.mode === 'week') {
-            state.weekStart = addWeeks(state.weekStart, 1);
-            if (!weekContains(state.weekStart, state.selected)) {
-                state.selected = new Date(state.weekStart);
-            }
-        } else {
-            state.monthAnchor = addMonths(state.monthAnchor, 1);
-            if (!sameMonth(state.monthAnchor, state.selected)) {
-                state.selected = startOfMonth(state.monthAnchor);
-            }
-        }
-        rerender();
-    });
-
     document.getElementById('cal-go-today')?.addEventListener('click', () => {
         const today = startOfDay(new Date());
         state.selected = today;

js/views/Pantry.js

@@ -3,16 +3,13 @@ import {
     CATEGORY_LABELS,
 } from '../data/catalog.js?v=9';
 import { loadPantry, getPantryTotal } from '../services/pantryShopping.js?v=2';
-import { loadPlans } from '../services/planStore.js?v=2';
-import { addDays, addMonths, sameDay, sameMonth, startOfDay, startOfMonth } from '../services/dateUtils.js';
+import { loadPlans, dateKey } from '../services/planStore.js?v=2';
+import { addDays, sameDay, startOfDay, startOfMonth } from '../services/dateUtils.js';
 import { aggregateRangeIngredientNeed, dayHasAnyMeal } from '../services/planIngredients.js?v=4';
 import {
-    bindCalendarDayClicks,
-    createCalendarTopbarHTML,
-    createCalendarWeekdayHeaderHTML,
-    renderCalendarGrid,
-    syncCalendarTodayButton,
-} from '../ui/mealCalendar.js?v=11';
+    createSwipePopoverCalendarHTML,
+    initSwipePopoverCalendar,
+} from '../ui/swipePopoverCalendar.js';
 import { createIngredientCardController, getIngredientCardHTML } from '../ui/ingredientCard.js?v=20260417-116';
 
 /* ── helpers ── */
@@ -79,7 +76,6 @@ const DAY_NAMES_SHORT = ['nd.', 'pon.', 'wt.', 'śr.', 'czw.', 'pt.', 'sob.'];
 const MONTHS_SHORT = ['sty', 'lut', 'mar', 'kwi', 'maj', 'cze', 'lip', 'sie', 'wrz', 'paź', 'lis', 'gru'];
 
 const DEFAULT_HORIZON_DAYS = 7;
-const PANTRY_CALENDAR_DAY_ATTR = 'data-pantry-calendar-day';
 const SHORTFALL_ACCENT = 'rgb(var(--danger-rgb))';
 const PANTRY_CALENDAR_THEME = {
     bg: 'rgb(var(--app-bg-rgb))',
@@ -105,6 +101,7 @@ let isCalendarOpen = false;
 let isFilterOpen = false;
 let calendarMonthAnchor = startOfMonth(horizonEndDate);
 let pantryGlobalListenersBound = false;
+let pantryCalendar = null;
 let pantryFilters = {
     categories: [],
     sections: [],
@@ -140,10 +137,6 @@ function formatHorizonLabel(date) {
     return sameDay(date, getToday()) ? 'Do dziś' : `Do ${formatEndDate(date)}`;
 }
 
-function formatRangeSummary(date) {
-    return sameDay(date, getToday()) ? 'Zakres: tylko dziś' : `Zakres: dziś - ${formatEndDate(date)}`;
-}
-
 function formatDayContext(dayStrings) {
     const dayNames = dayStrings.map((ds) => {
         const d = new Date(ds + 'T00:00:00');
@@ -209,25 +202,8 @@ export function getPantryHTML() {
                     </div>
 
 
-                    <div id="pantry-calendar-popover" class="absolute left-0 right-0 top-full mt-2 rounded-[1.35rem] px-3 py-3 transition-all duration-200 pointer-events-none" style="background:rgb(var(--sunken-rgb)) !important; border:1px solid rgb(var(--border-input-rgb)) !important; box-shadow:var(--shadow-shell) !important; opacity:0; transform:translateY(-6px) scale(0.98);">
-                        ${createCalendarTopbarHTML({
-    prevId: 'pantry-cal-prev',
-    todayId: 'pantry-cal-today',
-    nextId: 'pantry-cal-next',
-    wrapperClass: 'pb-3 flex items-center justify-end gap-3',
-    controlsStyle: `background:${PANTRY_CALENDAR_THEME.bg};border-color:${PANTRY_CALENDAR_THEME.border};`,
-    navButtonClass: 'shrink-0 w-7 h-full flex items-center justify-center rounded-full border-0 bg-transparent text-[rgb(var(--text-body-soft-rgb))] transition-colors',
-    todayButtonActiveClass: 'h-full shrink-0 inline-flex min-w-[5.75rem] max-w-[9rem] items-center justify-center rounded-full bg-transparent px-1.5 text-[10px] font-semibold leading-none tabular-nums text-[rgb(var(--text-body-soft-rgb))] active:bg-transparent whitespace-nowrap',
-    todayButtonDimClass: 'h-full shrink-0 inline-flex items-center justify-center rounded-full px-2 text-[10px] font-semibold leading-none text-[rgb(var(--text-faint-rgb))] cursor-default',
-})}
-                        ${createCalendarWeekdayHeaderHTML(undefined, {
-    wrapperClass: 'grid grid-cols-7 gap-1.5 text-center text-[8px] font-medium text-[rgb(var(--text-dim-rgb))] uppercase tracking-wide mb-1 leading-none',
-})}
-                        <div id="pantry-calendar-grid" class="grid grid-cols-7 gap-1.5"></div>
-
-                        <div class="mt-3 pt-3 border-t" style="border-color:rgb(var(--card-strong-rgb));">
-                            <p id="pantry-cal-selection" class="min-w-0 text-[11px] leading-snug" style="color:rgb(var(--text-dim-rgb));"></p>
-                        </div>
+                    <div id="pantry-calendar-popover" class="absolute left-0 right-0 top-full mt-2 rounded-[1.35rem] py-3 transition-all duration-200 pointer-events-none" style="background:rgb(var(--sunken-rgb)) !important; border:1px solid rgb(var(--border-input-rgb)) !important; box-shadow:var(--shadow-shell) !important; opacity:0; transform:translateY(-6px) scale(0.98);">
+                        ${createSwipePopoverCalendarHTML({ idPrefix: 'pantry-cal' })}
                     </div>
 
                     <div id="pantry-search-shell" class="absolute inset-0 flex items-center gap-2 rounded-full px-3 transition-all duration-200 pointer-events-none" style="background:rgb(var(--sunken-rgb)) !important; border:1px solid rgb(var(--border-input-rgb)) !important; box-shadow:var(--shadow-shell) !important; opacity:0; transform:translateY(-2px) scale(0.98);">
@@ -264,12 +240,8 @@ function syncHorizonUI() {
     const compactLabel = document.getElementById('pantry-horizon-compact-label');
     const compactPill = document.getElementById('pantry-horizon-compact');
     const chevron = document.getElementById('pantry-horizon-chevron');
-    const selectionEl = document.getElementById('pantry-cal-selection');
-    const prevBtn = document.getElementById('pantry-cal-prev');
-    const todayBtn = document.getElementById('pantry-cal-today');
 
     if (compactLabel) compactLabel.textContent = formatHorizonLabel(horizonEndDate);
-    if (selectionEl) selectionEl.textContent = formatRangeSummary(horizonEndDate);
 
     const showCalendar = isCalendarOpen && !isSearchExpanded;
     const showDefault = !isSearchExpanded;
@@ -313,22 +285,6 @@ function syncHorizonUI() {
         filterCount.classList.toggle('flex', activeFilterCount > 0);
     }
 
-    if (prevBtn) {
-        const isCurrentMonth = sameMonth(calendarMonthAnchor, getToday());
-        prevBtn.disabled = isCurrentMonth;
-        prevBtn.style.opacity = isCurrentMonth ? '0.45' : '1';
-        prevBtn.style.cursor = isCurrentMonth ? 'default' : 'pointer';
-    }
-    syncCalendarTodayButton(
-        todayBtn,
-        sameMonth(calendarMonthAnchor, getToday()),
-        horizonEndDate,
-        {
-            ariaLabelGo: 'Pokaż bieżący miesiąc w kalendarzu',
-            ariaLabelCurrent: 'Wyświetlany jest bieżący miesiąc',
-        },
-    );
-
     if (searchShell) {
         searchShell.style.opacity = isSearchExpanded ? '1' : '0';
         searchShell.style.transform = isSearchExpanded ? 'translateY(0) scale(1)' : 'translateY(-2px) scale(0.98)';
@@ -340,29 +296,38 @@ function syncHorizonUI() {
 }
 
 function renderCalendarPopover() {
-    const gridEl = document.getElementById('pantry-calendar-grid');
-    if (!gridEl) return;
+    pantryCalendar?.render();
+}
 
-    ensureValidHorizonDate();
-    const today = getToday();
-    const plans = loadPlans();
-
-    renderCalendarGrid({
-        gridEl,
-        mode: 'month',
-        anchorDate: calendarMonthAnchor,
-        selectedDate: horizonEndDate,
-        resolveDayState: (day, meta) => {
-            const isPast = day.getTime() < today.getTime();
+function bindPantryCalendarInteractions() {
+    pantryCalendar = initSwipePopoverCalendar({
+        idPrefix: 'pantry-cal',
+        selectionMode: 'single',
+        panelHandlePx: 10,
+        panelHandleMin: 8,
+        panelHandleMax: 12,
+        getMonthAnchor: () => calendarMonthAnchor,
+        setMonthAnchor: (nextMonth) => {
+            const nextAnchor = startOfMonth(nextMonth);
+            const minAnchor = startOfMonth(getToday());
+            if (nextAnchor.getTime() < minAnchor.getTime()) return;
+            calendarMonthAnchor = nextAnchor;
+        },
+        getSelectionKeys: () => dateKey(horizonEndDate),
+        onSelectionCommit: (selectedKey) => {
+            selectHorizonDate(new Date(`${selectedKey}T00:00:00`));
+        },
+        resolveDayState: (day, { inCurrentMonth }) => {
+            const isPast = day.getTime() < getToday().getTime();
             return {
                 disabled: isPast,
-                dimmed: isPast || !meta.inCurrentMonth,
-                showIndicator: dayHasAnyMeal(plans, day),
+                dimmed: isPast || !inCurrentMonth,
+                showDot: dayHasAnyMeal(loadPlans(), day),
             };
         },
-        dayAttr: PANTRY_CALENDAR_DAY_ATTR,
         theme: PANTRY_CALENDAR_THEME,
     });
+    pantryCalendar.render();
 }
 
 function filterChipHtml(kind, value, label, active) {
@@ -434,6 +399,7 @@ function openSearch() {
 function closeCalendar() {
     if (!isCalendarOpen) return;
     isCalendarOpen = false;
+    pantryCalendar?.resetTrackPosition();
     syncHorizonUI();
 }
 
@@ -444,6 +410,10 @@ function openCalendar() {
     isFilterOpen = false;
     isCalendarOpen = true;
     syncHorizonUI();
+    requestAnimationFrame(() => {
+        pantryCalendar?.reapplyLayout();
+        pantryCalendar?.resetTrackPosition();
+    });
 }
 
 function closeFilter() {
@@ -767,23 +737,7 @@ export function setupPantry() {
         event.stopPropagation();
         isCalendarOpen ? closeCalendar() : openCalendar();
     });
-    document.getElementById('pantry-cal-prev')?.addEventListener('click', () => {
-        const prevMonth = addMonths(calendarMonthAnchor, -1);
-        if (prevMonth.getTime() < startOfMonth(getToday()).getTime()) return;
-        calendarMonthAnchor = prevMonth;
-        syncHorizonUI();
-    });
-    document.getElementById('pantry-cal-next')?.addEventListener('click', () => {
-        calendarMonthAnchor = addMonths(calendarMonthAnchor, 1);
-        syncHorizonUI();
-    });
-    document.getElementById('pantry-cal-today')?.addEventListener('click', () => {
-        calendarMonthAnchor = startOfMonth(getToday());
-        syncHorizonUI();
-    });
-    bindCalendarDayClicks(document.getElementById('pantry-calendar-grid'), (date) => {
-        selectHorizonDate(date);
-    }, PANTRY_CALENDAR_DAY_ATTR);
+    bindPantryCalendarInteractions();
 
     if (!pantryGlobalListenersBound) {
         pantryGlobalListenersBound = true;

js/views/ShoppingList.js

@@ -14,7 +14,8 @@ import {
 } from '../services/pantryShopping.js?v=2';
 import { aggregateSelectedDaysIngredientNeed } from '../services/planIngredients.js?v=2';
 import { loadPlans, dateKey } from '../services/planStore.js?v=2';
-import { addDays, startOfDay, startOfMonth, startOfWeekMonday } from '../services/dateUtils.js';
+import { addDays, startOfDay, startOfMonth } from '../services/dateUtils.js';
+import { createSwipePopoverCalendarHTML, initSwipePopoverCalendar } from '../ui/swipePopoverCalendar.js';
 import { showAppToast } from '../ui/toast.js';
 
 /* ── helpers ── */
@@ -62,6 +63,7 @@ let expandedIngredientId = null;
 let expandedAmount = 0;
 let calendarOpen = false;
 let calendarMonth = startOfMonth(new Date());
+let shoppingCalendar = null;
 
 /* ── day helpers ── */
 
@@ -112,10 +114,6 @@ function groupByCategory(items) {
 /* ══════════════════════ HTML SHELL ══════════════════════ */
 
 export function getShoppingListHTML() {
-    const weekdayHeader = WEEKDAY_SHORT
-        .map((d) => `<div>${d}</div>`)
-        .join('');
-
     return `
     <div id="shopping-view" class="hidden flex flex-col h-full absolute inset-0 overflow-hidden z-10" style="background:rgb(var(--app-bg-rgb)) !important;">
 
@@ -136,23 +134,11 @@ export function getShoppingListHTML() {
 
                 <!-- popup calendar (absolute, overlays content below) -->
                 <div id="sl-calendar-popup" style="position:absolute; top:calc(100% + 0.5rem); left:0; right:0; z-index:50; pointer-events:none; opacity:0; transform:translateY(-6px) scale(0.98); transition: opacity 0.2s ease, transform 0.2s ease;">
-                    <div class="rounded-[1.35rem] px-3 py-3" style="background:rgb(var(--sunken-rgb)); border:1px solid rgb(var(--border-input-rgb)); box-shadow:var(--shadow-shell);">
-                        <!-- month nav topbar -->
-                        <div class="pb-3 flex items-center justify-end gap-3">
-                            <div class="flex h-[2.05rem] min-w-0 max-w-[min(100%,20rem)] items-center gap-px rounded-full border px-0.5" style="background:rgb(var(--app-bg-rgb)); border-color:rgb(var(--card-raised-rgb));">
-                                <button type="button" id="sl-cal-prev" class="shrink-0 w-7 h-full flex items-center justify-center rounded-full bg-transparent transition-colors" style="color:rgb(var(--text-body-soft-rgb));">
-                                    <i class="fas fa-chevron-left text-[10px]"></i>
-                                </button>
-                                <span id="sl-cal-month-label" class="h-full shrink-0 inline-flex min-w-[5.75rem] max-w-[9rem] items-center justify-center px-1.5 text-[10px] font-semibold leading-none tabular-nums whitespace-nowrap" style="color:rgb(var(--text-body-soft-rgb));"></span>
-                                <button type="button" id="sl-cal-next" class="shrink-0 w-7 h-full flex items-center justify-center rounded-full bg-transparent transition-colors" style="color:rgb(var(--text-body-soft-rgb));">
-                                    <i class="fas fa-chevron-right text-[10px]"></i>
-                                </button>
-                            </div>
-                        </div>
-                        <!-- weekday header -->
-                        <div class="grid grid-cols-7 gap-1.5 text-center text-[8px] font-medium uppercase tracking-wide mb-1 leading-none" style="color:rgb(var(--text-dim-rgb));">${weekdayHeader}</div>
-                        <!-- day grid -->
-                        <div id="sl-cal-grid" class="grid grid-cols-7 gap-1.5"></div>
+                    <div class="rounded-[1.35rem] py-3" style="background:rgb(var(--sunken-rgb)); border:1px solid rgb(var(--border-input-rgb)); box-shadow:var(--shadow-shell);">
+                        ${createSwipePopoverCalendarHTML({
+        idPrefix: 'sl-cal',
+        weekdays: WEEKDAY_SHORT,
+    })}
                     </div>
                 </div>
 
@@ -180,115 +166,41 @@ export function getShoppingListHTML() {
 
 /* ══════════════════════ CALENDAR ══════════════════════ */
 
-function getDayRange(startDk, endDk) {
-    const a = new Date(startDk + 'T00:00:00');
-    const b = new Date(endDk + 'T00:00:00');
-    const [from, to] = a <= b ? [a, b] : [b, a];
-    const days = [];
-    for (let d = new Date(from); d <= to; d = addDays(d, 1)) days.push(dateKey(d));
-    return days;
-}
-
-function renderCalendarGrid(previewDays = null) {
-    const grid = document.getElementById('sl-cal-grid');
-    const monthLabel = document.getElementById('sl-cal-month-label');
-    if (!grid) return;
-
-    if (monthLabel) {
-        monthLabel.textContent = `${MONTHS_LONG[calendarMonth.getMonth()]} ${calendarMonth.getFullYear()}`;
-    }
-
-    const selected = previewDays ?? new Set(getSelectedDays());
-    const today = todayKey();
-    const first = startOfMonth(calendarMonth);
-    const gridStart = startOfWeekMonday(first);
-
-    const cells = Array.from({ length: 42 }, (_, i) => addDays(gridStart, i));
-    while (cells.length > 35 && cells.slice(-7).every((d) => d.getMonth() !== first.getMonth())) {
-        cells.splice(-7);
-    }
-
-    grid.innerHTML = cells.map((day) => {
-        const dk = dateKey(day);
-        const inMonth = day.getMonth() === first.getMonth();
-        const isSel = selected.has(dk);
-        const isToday = dk === today;
-
-        let bg, borderColor, color, opacity, borderClass;
-        if (isSel) {
-            bg = 'rgb(var(--card-rgb))'; borderColor = 'rgb(var(--border-input-rgb))'; color = 'rgb(var(--text-emphasis-rgb))'; opacity = '1'; borderClass = 'border';
-        } else if (!inMonth) {
-            bg = 'transparent'; borderColor = 'transparent'; color = CALENDAR_DIM_TEXT; opacity = CALENDAR_DIM_OPACITY; borderClass = 'border-0';
-        } else {
-            bg = 'rgb(var(--app-bg-rgb))'; borderColor = 'rgb(var(--card-raised-rgb))'; color = 'rgb(var(--text-body-soft-rgb))'; opacity = '1'; borderClass = 'border';
-        }
-
-        const dot = isToday && !isSel
-            ? `<span class="absolute left-1/2 -translate-x-1/2 w-1 h-1 rounded-full opacity-75" style="bottom:0.24rem; background:rgb(var(--text-faint-rgb));"></span>`
-            : '';
-
-        return `<button type="button" class="sl-cal-day mx-auto flex h-[2.05rem] w-full min-w-0 max-w-full items-center justify-center rounded-full ${borderClass} text-xs font-medium leading-tight overflow-hidden"
-            style="background:${bg}; border-color:${borderColor}; color:${color}; opacity:${opacity}; touch-action:none;"
-            data-dk="${esc(dk)}">
-            <span class="relative flex h-full w-full flex-col items-center justify-center">
-                <span class="text-[13px] font-semibold leading-none${dot ? ' -translate-y-[0.18rem]' : ''}">${day.getDate()}</span>
-                ${dot}
-            </span>
-        </button>`;
-    }).join('');
-}
-
-function bindCalendarEvents() {
-    const grid = document.getElementById('sl-cal-grid');
-    if (!grid) return;
-
-    let dragStartDk = null;
-    let dragCurrentDk = null;
-    let dragging = false;
-
-    grid.addEventListener('pointerdown', (e) => {
-        e.stopPropagation();
-        const btn = e.target.closest('.sl-cal-day');
-        if (!btn) return;
-        dragStartDk = btn.dataset.dk;
-        dragCurrentDk = btn.dataset.dk;
-        dragging = true;
-        grid.setPointerCapture(e.pointerId);
-        renderCalendarGrid(new Set([dragStartDk]));
+function initShoppingCalendar() {
+    shoppingCalendar = initSwipePopoverCalendar({
+        idPrefix: 'sl-cal',
+        selectionMode: 'range',
+        monthsLong: MONTHS_LONG,
+        getMonthAnchor: () => calendarMonth,
+        setMonthAnchor: (nextMonth) => {
+            calendarMonth = startOfMonth(nextMonth);
+        },
+        getSelectionKeys: () => getSelectedDays(),
+        onSelectionCommit: (rangeKeys) => {
+            setSelectedDays(rangeKeys);
+            expandedIngredientId = null;
+            updatePillLabel();
+            renderAll();
+        },
+        resolveDayState: (day, { inCurrentMonth, isSelected }) => ({
+            disabled: false,
+            dimmed: !inCurrentMonth,
+            showDot: dateKey(day) === todayKey() && !isSelected,
+        }),
+        theme: {
+            selectedBg: 'rgb(var(--card-rgb))',
+            selectedBorder: 'rgb(var(--border-input-rgb))',
+            selectedText: 'rgb(var(--text-emphasis-rgb))',
+            selectedDot: 'rgb(var(--text-emphasis-rgb))',
+            bg: 'rgb(var(--app-bg-rgb))',
+            border: 'rgb(var(--card-raised-rgb))',
+            text: 'rgb(var(--text-body-soft-rgb))',
+            dimmedBg: 'transparent',
+            dimText: CALENDAR_DIM_TEXT,
+            dimOpacity: Number(CALENDAR_DIM_OPACITY),
+            dot: 'rgb(var(--text-faint-rgb))',
+        },
     });
-
-    grid.addEventListener('pointermove', (e) => {
-        if (!dragging || !dragStartDk) return;
-        e.preventDefault();
-        const el = document.elementFromPoint(e.clientX, e.clientY);
-        const btn = el?.closest('.sl-cal-day');
-        if (!btn?.dataset.dk || btn.dataset.dk === dragCurrentDk) return;
-        dragCurrentDk = btn.dataset.dk;
-        renderCalendarGrid(new Set(getDayRange(dragStartDk, dragCurrentDk)));
-    });
-
-    grid.addEventListener('pointerup', (e) => {
-        if (!dragging) return;
-        dragging = false;
-        const range = getDayRange(dragStartDk, dragCurrentDk);
-        dragStartDk = null;
-        dragCurrentDk = null;
-        setSelectedDays(range);
-        expandedIngredientId = null;
-        updatePillLabel();
-        renderCalendarGrid();
-        renderAll();
-    });
-
-    grid.addEventListener('pointercancel', () => {
-        dragging = false;
-        dragStartDk = null;
-        dragCurrentDk = null;
-        renderCalendarGrid();
-    });
-
-    // Prevent bubbled click events (generated after pointerup) from closing the popup
-    grid.addEventListener('click', (e) => e.stopPropagation());
 }
 
 function updatePillLabel() {
@@ -301,6 +213,7 @@ function openCalendar() {
     calendarOpen = true;
     calendarMonth = startOfMonth(new Date());
     const popup = document.getElementById('sl-calendar-popup');
+    const viewport = document.getElementById('sl-cal-viewport');
     const chevron = document.getElementById('sl-range-chevron');
     const pill = document.getElementById('sl-range-pill');
     if (popup) {
@@ -313,7 +226,31 @@ function openCalendar() {
         pill.style.background = 'rgb(var(--sunken-rgb))';
         pill.style.borderColor = 'rgb(var(--border-input-rgb))';
     }
-    renderCalendarGrid();
+    if (viewport) {
+        viewport.style.opacity = '0';
+        viewport.style.visibility = 'hidden';
+        viewport.style.transition = 'opacity 120ms ease';
+    }
+    shoppingCalendar?.render();
+    // Compute geometry while hidden; reveal only after stable layout.
+    const ensureStableCalendarLayout = (attempt = 0) => {
+        const vw = viewport ? (viewport.clientWidth || viewport.getBoundingClientRect().width) : 0;
+        if (vw < 8 && attempt < 8) {
+            requestAnimationFrame(() => ensureStableCalendarLayout(attempt + 1));
+            return;
+        }
+        shoppingCalendar?.reapplyLayout();
+        shoppingCalendar?.resetTrackPosition();
+        requestAnimationFrame(() => {
+            shoppingCalendar?.reapplyLayout();
+            shoppingCalendar?.resetTrackPosition();
+            if (viewport) {
+                viewport.style.visibility = 'visible';
+                viewport.style.opacity = '1';
+            }
+        });
+    };
+    requestAnimationFrame(() => ensureStableCalendarLayout());
 }
 
 function closeCalendar() {
@@ -331,6 +268,7 @@ function closeCalendar() {
         pill.style.background = 'rgb(var(--card-rgb))';
         pill.style.borderColor = 'rgb(var(--border-card-rgb))';
     }
+    shoppingCalendar?.resetTrackPosition();
 }
 
 function toggleCalendar() {
@@ -671,6 +609,7 @@ function bindActiveRowEvents(root, activeItems) {
 export function refreshShoppingList() {
     updatePillLabel();
     renderAll();
+    if (calendarOpen) shoppingCalendar?.render();
 }
 
 export function setupShoppingList() {
@@ -679,7 +618,7 @@ export function setupShoppingList() {
     updatePillLabel();
     renderAll();
 
-    bindCalendarEvents();
+    initShoppingCalendar();
 
     document.getElementById('sl-range-pill')?.addEventListener('click', (e) => {
         e.stopPropagation();
@@ -708,19 +647,6 @@ export function setupShoppingList() {
         }
     });
 
-    document.getElementById('sl-cal-prev')?.addEventListener('click', (e) => {
-        e.stopPropagation();
-        calendarMonth = startOfMonth(new Date(calendarMonth.getFullYear(), calendarMonth.getMonth() - 1, 1));
-        renderCalendarGrid();
-    });
-
-    document.getElementById('sl-cal-next')?.addEventListener('click', (e) => {
-        e.stopPropagation();
-        calendarMonth = startOfMonth(new Date(calendarMonth.getFullYear(), calendarMonth.getMonth() + 1, 1));
-        renderCalendarGrid();
-    });
-
-
     document.getElementById('sl-clear-session')?.addEventListener('click', (e) => {
         e.stopPropagation();
         clearSessionLog();