feat(input): extract datepicker popup into a window-layer overlay and enhance the code editor modal status UI

2026-04-05 00:24:12 +00:00
parent 976039798a
commit 9bfb6446af
8 changed files with 1005 additions and 918 deletions
--- a/ts_web/elements/00group-input/dees-input-datepicker/datepicker-popup.ts
+++ b/ts_web/elements/00group-input/dees-input-datepicker/datepicker-popup.ts
@@ -0,0 +1,758 @@
+import {
+  customElement,
+  type TemplateResult,
+  property,
+  state,
+  html,
+  css,
+  cssManager,
+  DeesElement,
+} from '@design.estate/dees-element';
+import * as domtools from '@design.estate/dees-domtools';
+import { zIndexRegistry } from '../../00zindex.js';
+import { themeDefaultStyles } from '../../00theme.js';
+import { DeesWindowLayer } from '../../00group-overlay/dees-windowlayer/dees-windowlayer.js';
+import '../../00group-utility/dees-icon/dees-icon.js';
+import type { IDateEvent } from './types.js';
+
+declare global {
+  interface HTMLElementTagNameMap {
+    'dees-input-datepicker-popup': DeesInputDatepickerPopup;
+  }
+}
+
+@customElement('dees-input-datepicker-popup')
+export class DeesInputDatepickerPopup extends DeesElement {
+  // Properties set by the parent
+  @property({ attribute: false })
+  accessor triggerRect: DOMRect | null = null;
+
+  @property({ attribute: false })
+  accessor ownerComponent: HTMLElement | null = null;
+
+  @property({ type: Boolean })
+  accessor enableTime: boolean = false;
+
+  @property({ type: String })
+  accessor timeFormat: '24h' | '12h' = '24h';
+
+  @property({ type: Number })
+  accessor minuteIncrement: number = 1;
+
+  @property({ type: Number })
+  accessor weekStartsOn: 0 | 1 = 1;
+
+  @property({ type: String })
+  accessor minDate: string = '';
+
+  @property({ type: String })
+  accessor maxDate: string = '';
+
+  @property({ type: Array })
+  accessor disabledDates: string[] = [];
+
+  @property({ type: Boolean })
+  accessor enableTimezone: boolean = false;
+
+  @property({ type: String })
+  accessor timezone: string = Intl.DateTimeFormat().resolvedOptions().timeZone;
+
+  @property({ type: Array })
+  accessor events: IDateEvent[] = [];
+
+  @property({ type: Boolean })
+  accessor opensToTop: boolean = false;
+
+  // Internal state
+  @state()
+  accessor selectedDate: Date | null = null;
+
+  @state()
+  accessor viewDate: Date = new Date();
+
+  @state()
+  accessor selectedHour: number = 0;
+
+  @state()
+  accessor selectedMinute: number = 0;
+
+  @state()
+  accessor menuZIndex: number = 1000;
+
+  @state()
+  accessor visible: boolean = false;
+
+  private windowLayer: DeesWindowLayer | null = null;
+  private isDestroying: boolean = false;
+
+  public static styles = [
+    themeDefaultStyles,
+    cssManager.defaultStyles,
+    css`
+      :host {
+        position: fixed;
+        top: 0;
+        left: 0;
+        width: 0;
+        height: 0;
+        pointer-events: none;
+      }
+
+      * {
+        box-sizing: border-box;
+      }
+
+      .calendar-popup {
+        position: fixed;
+        pointer-events: auto;
+        will-change: transform, opacity;
+        transition: all 0.15s ease;
+        opacity: 0;
+        transform: translateY(-4px);
+        background: ${cssManager.bdTheme('hsl(0 0% 100%)', 'hsl(224 71.4% 4.1%)')};
+        border: 1px solid ${cssManager.bdTheme('hsl(214.3 31.8% 91.4%)', 'hsl(217.2 32.6% 17.5%)')};
+        box-shadow: ${cssManager.bdTheme(
+          '0 10px 15px -3px hsl(0 0% 0% / 0.1), 0 4px 6px -4px hsl(0 0% 0% / 0.1)',
+          '0 10px 15px -3px hsl(0 0% 0% / 0.2), 0 4px 6px -4px hsl(0 0% 0% / 0.2)'
+        )};
+        border-radius: 6px;
+        padding: 12px;
+        user-select: none;
+        min-width: 280px;
+      }
+
+      .calendar-popup.top {
+        transform: translateY(4px);
+      }
+
+      .calendar-popup.show {
+        transform: translateY(0);
+        opacity: 1;
+      }
+
+      /* Calendar Header */
+      .calendar-header {
+        display: flex;
+        align-items: center;
+        justify-content: space-between;
+        margin-bottom: 16px;
+        gap: 8px;
+      }
+
+      .month-year-display {
+        font-weight: 500;
+        font-size: 14px;
+        color: ${cssManager.bdTheme('hsl(224 71.4% 4.1%)', 'hsl(210 20% 98%)')};
+        flex: 1;
+        text-align: center;
+      }
+
+      .nav-button {
+        width: 28px;
+        height: 28px;
+        border: none;
+        background: transparent;
+        cursor: pointer;
+        border-radius: 6px;
+        display: flex;
+        align-items: center;
+        justify-content: center;
+        color: ${cssManager.bdTheme('hsl(220 8.9% 46.1%)', 'hsl(215 20.2% 65.1%)')};
+        transition: all 0.2s ease;
+      }
+
+      .nav-button:hover {
+        background: ${cssManager.bdTheme('hsl(210 20% 98%)', 'hsl(215 27.9% 16.9%)')};
+        color: ${cssManager.bdTheme('hsl(224 71.4% 4.1%)', 'hsl(210 20% 98%)')};
+      }
+
+      /* Weekday headers */
+      .weekdays {
+        display: grid;
+        grid-template-columns: repeat(7, 1fr);
+        margin-bottom: 4px;
+      }
+
+      .weekday {
+        text-align: center;
+        font-size: 12px;
+        font-weight: 400;
+        color: ${cssManager.bdTheme('hsl(220 8.9% 46.1%)', 'hsl(215 20.2% 65.1%)')};
+        padding: 0 0 8px 0;
+      }
+
+      /* Days grid */
+      .days-grid {
+        display: grid;
+        grid-template-columns: repeat(7, 1fr);
+        gap: 2px;
+      }
+
+      .day {
+        aspect-ratio: 1;
+        display: flex;
+        align-items: center;
+        justify-content: center;
+        cursor: pointer;
+        border-radius: 6px;
+        font-size: 14px;
+        transition: all 0.2s ease;
+        color: ${cssManager.bdTheme('hsl(224 71.4% 4.1%)', 'hsl(210 20% 98%)')};
+        border: none;
+        width: 36px;
+        height: 36px;
+        background: transparent;
+        position: relative;
+      }
+
+      .day:hover:not(.disabled) {
+        background: ${cssManager.bdTheme('hsl(210 20% 98%)', 'hsl(215 27.9% 16.9%)')};
+      }
+
+      .day.other-month {
+        color: ${cssManager.bdTheme('hsl(220 8.9% 46.1%)', 'hsl(215 20.2% 65.1%)')};
+        opacity: 0.5;
+      }
+
+      .day.today {
+        background: ${cssManager.bdTheme('hsl(210 20% 98%)', 'hsl(215 27.9% 16.9%)')};
+        font-weight: 500;
+      }
+
+      .day.selected {
+        background: ${cssManager.bdTheme('hsl(222.2 47.4% 11.2%)', 'hsl(210 20% 98%)')};
+        color: ${cssManager.bdTheme('hsl(210 20% 98%)', 'hsl(222.2 47.4% 11.2%)')};
+        font-weight: 500;
+      }
+
+      .day.disabled {
+        color: ${cssManager.bdTheme('hsl(220 8.9% 46.1%)', 'hsl(215 20.2% 65.1%)')};
+        cursor: not-allowed;
+        opacity: 0.3;
+      }
+
+      /* Event indicators */
+      .event-indicator {
+        position: absolute;
+        bottom: 4px;
+        left: 50%;
+        transform: translateX(-50%);
+        display: flex;
+        gap: 2px;
+      }
+
+      .event-dot {
+        width: 4px;
+        height: 4px;
+        border-radius: 50%;
+        background: ${cssManager.bdTheme('hsl(220 8.9% 46.1%)', 'hsl(215 20.2% 65.1%)')};
+      }
+
+      .event-dot.info { background: ${cssManager.bdTheme('hsl(211 70% 52%)', 'hsl(211 70% 62%)')}; }
+      .event-dot.warning { background: ${cssManager.bdTheme('hsl(45 90% 45%)', 'hsl(45 90% 55%)')}; }
+      .event-dot.success { background: ${cssManager.bdTheme('hsl(142 69% 45%)', 'hsl(142 69% 55%)')}; }
+      .event-dot.error { background: ${cssManager.bdTheme('hsl(0 72% 51%)', 'hsl(0 72% 61%)')}; }
+
+      .event-count {
+        position: absolute;
+        top: 2px;
+        right: 2px;
+        min-width: 16px;
+        height: 16px;
+        padding: 0 4px;
+        background: ${cssManager.bdTheme('hsl(0 72% 51%)', 'hsl(0 72% 61%)')};
+        color: white;
+        border-radius: 8px;
+        font-size: 10px;
+        font-weight: 600;
+        display: flex;
+        align-items: center;
+        justify-content: center;
+      }
+
+      .event-tooltip {
+        position: absolute;
+        bottom: calc(100% + 8px);
+        left: 50%;
+        transform: translateX(-50%);
+        background: ${cssManager.bdTheme('hsl(0 0% 20%)', 'hsl(0 0% 90%)')};
+        color: ${cssManager.bdTheme('hsl(0 0% 100%)', 'hsl(0 0% 0%)')};
+        padding: 8px 12px;
+        border-radius: 6px;
+        font-size: 12px;
+        white-space: nowrap;
+        pointer-events: none;
+        opacity: 0;
+        transition: opacity 0.2s ease;
+        z-index: 10;
+      }
+
+      .day.has-event:hover .event-tooltip { opacity: 1; }
+
+      /* Time selector */
+      .time-selector {
+        margin-top: 12px;
+        padding-top: 12px;
+        border-top: 1px solid ${cssManager.bdTheme('hsl(214.3 31.8% 91.4%)', 'hsl(217.2 32.6% 17.5%)')};
+      }
+
+      .time-selector-title {
+        font-size: 12px;
+        font-weight: 500;
+        margin-bottom: 8px;
+        color: ${cssManager.bdTheme('hsl(220 8.9% 46.1%)', 'hsl(215 20.2% 65.1%)')};
+      }
+
+      .time-inputs {
+        display: flex;
+        gap: 8px;
+        align-items: center;
+      }
+
+      .time-input {
+        width: 65px;
+        height: 36px;
+        border: 1px solid ${cssManager.bdTheme('hsl(214.3 31.8% 91.4%)', 'hsl(217.2 32.6% 17.5%)')};
+        border-radius: 6px;
+        padding: 0 12px;
+        font-size: 14px;
+        text-align: center;
+        background: ${cssManager.bdTheme('hsl(0 0% 100%)', 'hsl(224 71.4% 4.1%)')};
+        color: ${cssManager.bdTheme('hsl(224 71.4% 4.1%)', 'hsl(210 20% 98%)')};
+        transition: all 0.2s ease;
+      }
+
+      .time-input:focus {
+        outline: none;
+        border-color: ${cssManager.bdTheme('hsl(222.2 47.4% 11.2%)', 'hsl(210 20% 98%)')};
+        box-shadow: 0 0 0 2px ${cssManager.bdTheme('hsl(222.2 47.4% 11.2% / 0.1)', 'hsl(210 20% 98% / 0.1)')};
+      }
+
+      .time-separator {
+        font-size: 14px;
+        font-weight: 500;
+        color: ${cssManager.bdTheme('hsl(220 8.9% 46.1%)', 'hsl(215 20.2% 65.1%)')};
+      }
+
+      .am-pm-selector { display: flex; gap: 4px; margin-left: 8px; }
+
+      .am-pm-button {
+        padding: 6px 12px;
+        border: 1px solid ${cssManager.bdTheme('hsl(214.3 31.8% 91.4%)', 'hsl(217.2 32.6% 17.5%)')};
+        background: ${cssManager.bdTheme('hsl(0 0% 100%)', 'hsl(224 71.4% 4.1%)')};
+        border-radius: 6px;
+        font-size: 12px;
+        font-weight: 500;
+        cursor: pointer;
+        transition: all 0.2s ease;
+        color: ${cssManager.bdTheme('hsl(220 8.9% 46.1%)', 'hsl(215 20.2% 65.1%)')};
+      }
+
+      .am-pm-button.selected {
+        background: ${cssManager.bdTheme('hsl(222.2 47.4% 11.2%)', 'hsl(210 20% 98%)')};
+        color: ${cssManager.bdTheme('hsl(210 20% 98%)', 'hsl(222.2 47.4% 11.2%)')};
+        border-color: ${cssManager.bdTheme('hsl(222.2 47.4% 11.2%)', 'hsl(210 20% 98%)')};
+      }
+
+      .am-pm-button:hover:not(.selected) {
+        background: ${cssManager.bdTheme('hsl(210 20% 98%)', 'hsl(215 27.9% 16.9%)')};
+      }
+
+      /* Timezone selector */
+      .timezone-selector {
+        margin-top: 12px;
+        padding-top: 12px;
+        border-top: 1px solid ${cssManager.bdTheme('hsl(214.3 31.8% 91.4%)', 'hsl(217.2 32.6% 17.5%)')};
+      }
+
+      .timezone-selector-title {
+        font-size: 12px;
+        font-weight: 500;
+        margin-bottom: 8px;
+        color: ${cssManager.bdTheme('hsl(220 8.9% 46.1%)', 'hsl(215 20.2% 65.1%)')};
+      }
+
+      .timezone-select {
+        width: 100%;
+        height: 36px;
+        border: 1px solid ${cssManager.bdTheme('hsl(214.3 31.8% 91.4%)', 'hsl(217.2 32.6% 17.5%)')};
+        border-radius: 6px;
+        padding: 0 12px;
+        font-size: 14px;
+        background: ${cssManager.bdTheme('hsl(0 0% 100%)', 'hsl(224 71.4% 4.1%)')};
+        color: ${cssManager.bdTheme('hsl(224 71.4% 4.1%)', 'hsl(210 20% 98%)')};
+        cursor: pointer;
+      }
+
+      /* Action buttons */
+      .calendar-actions {
+        display: flex;
+        gap: 8px;
+        margin-top: 12px;
+        padding-top: 12px;
+        border-top: 1px solid ${cssManager.bdTheme('hsl(214.3 31.8% 91.4%)', 'hsl(217.2 32.6% 17.5%)')};
+      }
+
+      .action-button {
+        flex: 1;
+        height: 36px;
+        border: none;
+        border-radius: 6px;
+        font-size: 14px;
+        font-weight: 500;
+        cursor: pointer;
+        transition: all 0.2s ease;
+        display: flex;
+        align-items: center;
+        justify-content: center;
+      }
+
+      .today-button {
+        background: ${cssManager.bdTheme('hsl(0 0% 100%)', 'hsl(224 71.4% 4.1%)')};
+        border: 1px solid ${cssManager.bdTheme('hsl(214.3 31.8% 91.4%)', 'hsl(217.2 32.6% 17.5%)')};
+        color: ${cssManager.bdTheme('hsl(224 71.4% 4.1%)', 'hsl(210 20% 98%)')};
+      }
+
+      .today-button:hover {
+        background: ${cssManager.bdTheme('hsl(210 20% 98%)', 'hsl(215 27.9% 16.9%)')};
+      }
+
+      .clear-action-button {
+        background: transparent;
+        border: 1px solid transparent;
+        color: ${cssManager.bdTheme('hsl(220 8.9% 46.1%)', 'hsl(215 20.2% 65.1%)')};
+      }
+
+      .clear-action-button:hover {
+        background: ${cssManager.bdTheme('hsl(0 72.2% 50.6% / 0.1)', 'hsl(0 62.8% 30.6% / 0.1)')};
+        color: ${cssManager.bdTheme('hsl(0 72.2% 50.6%)', 'hsl(0 62.8% 30.6%)')};
+      }
+    `,
+  ];
+
+  private static readonly MONTH_NAMES = [
+    'January', 'February', 'March', 'April', 'May', 'June',
+    'July', 'August', 'September', 'October', 'November', 'December',
+  ];
+
+  private static readonly TIMEZONES = [
+    { value: 'UTC', label: 'UTC (Coordinated Universal Time)' },
+    { value: 'America/New_York', label: 'Eastern Time (US & Canada)' },
+    { value: 'America/Chicago', label: 'Central Time (US & Canada)' },
+    { value: 'America/Denver', label: 'Mountain Time (US & Canada)' },
+    { value: 'America/Los_Angeles', label: 'Pacific Time (US & Canada)' },
+    { value: 'Europe/London', label: 'London' },
+    { value: 'Europe/Paris', label: 'Paris' },
+    { value: 'Europe/Berlin', label: 'Berlin' },
+    { value: 'Europe/Moscow', label: 'Moscow' },
+    { value: 'Asia/Dubai', label: 'Dubai' },
+    { value: 'Asia/Kolkata', label: 'India Standard Time' },
+    { value: 'Asia/Shanghai', label: 'China Standard Time' },
+    { value: 'Asia/Tokyo', label: 'Tokyo' },
+    { value: 'Australia/Sydney', label: 'Sydney' },
+    { value: 'Pacific/Auckland', label: 'Auckland' },
+  ];
+
+  public render(): TemplateResult {
+    if (!this.triggerRect) return html``;
+
+    const posStyle = this.computePositionStyle();
+    const weekDays = this.weekStartsOn === 1
+      ? ['Mo', 'Tu', 'We', 'Th', 'Fr', 'Sa', 'Su']
+      : ['Su', 'Mo', 'Tu', 'We', 'Th', 'Fr', 'Sa'];
+    const days = this.getDaysInMonth();
+    const isAM = this.selectedHour < 12;
+
+    return html`
+      <div
+        class="calendar-popup ${this.visible ? 'show' : ''} ${this.opensToTop ? 'top' : 'bottom'}"
+        style="${posStyle}; z-index: ${this.menuZIndex};"
+      >
+        <div class="calendar-header">
+          <button class="nav-button" @click=${this.previousMonth}>
+            <dees-icon icon="lucide:chevronLeft" iconSize="16"></dees-icon>
+          </button>
+          <div class="month-year-display">
+            ${DeesInputDatepickerPopup.MONTH_NAMES[this.viewDate.getMonth()]} ${this.viewDate.getFullYear()}
+          </div>
+          <button class="nav-button" @click=${this.nextMonth}>
+            <dees-icon icon="lucide:chevronRight" iconSize="16"></dees-icon>
+          </button>
+        </div>
+
+        <div class="weekdays">
+          ${weekDays.map(day => html`<div class="weekday">${day}</div>`)}
+        </div>
+
+        <div class="days-grid">
+          ${days.map(day => {
+            const isToday = this.isToday(day);
+            const isSelected = this.isSelected(day);
+            const isOtherMonth = day.getMonth() !== this.viewDate.getMonth();
+            const isDayDisabled = this.isDayDisabled(day);
+            const dayEvents = this.getEventsForDate(day);
+            const hasEvents = dayEvents.length > 0;
+            const totalEventCount = dayEvents.reduce((sum, event) => sum + (event.count || 1), 0);
+
+            return html`
+              <div
+                class="day ${isOtherMonth ? 'other-month' : ''} ${isToday ? 'today' : ''} ${isSelected ? 'selected' : ''} ${isDayDisabled ? 'disabled' : ''} ${hasEvents ? 'has-event' : ''}"
+                @click=${() => !isDayDisabled && this.handleSelectDate(day)}
+              >
+                ${day.getDate()}
+                ${hasEvents ? html`
+                  ${totalEventCount > 3 ? html`
+                    <div class="event-count">${totalEventCount}</div>
+                  ` : html`
+                    <div class="event-indicator">
+                      ${dayEvents.slice(0, 3).map(event => html`
+                        <div class="event-dot ${event.type || 'info'}"></div>
+                      `)}
+                    </div>
+                  `}
+                  ${dayEvents[0].title ? html`
+                    <div class="event-tooltip">
+                      ${dayEvents[0].title}
+                      ${totalEventCount > 1 ? html` (+${totalEventCount - 1} more)` : ''}
+                    </div>
+                  ` : ''}
+                ` : ''}
+              </div>
+            `;
+          })}
+        </div>
+
+        ${this.enableTime ? html`
+          <div class="time-selector">
+            <div class="time-selector-title">Time</div>
+            <div class="time-inputs">
+              <input type="number" class="time-input"
+                .value=${this.timeFormat === '12h'
+                  ? (this.selectedHour === 0 ? 12 : this.selectedHour > 12 ? this.selectedHour - 12 : this.selectedHour).toString().padStart(2, '0')
+                  : this.selectedHour.toString().padStart(2, '0')}
+                @input=${this.handleHourInput}
+                min="${this.timeFormat === '12h' ? 1 : 0}"
+                max="${this.timeFormat === '12h' ? 12 : 23}"
+              />
+              <span class="time-separator">:</span>
+              <input type="number" class="time-input"
+                .value=${this.selectedMinute.toString().padStart(2, '0')}
+                @input=${this.handleMinuteInput}
+                min="0" max="59" step="${this.minuteIncrement || 1}"
+              />
+              ${this.timeFormat === '12h' ? html`
+                <div class="am-pm-selector">
+                  <button class="am-pm-button ${isAM ? 'selected' : ''}" @click=${() => this.setAMPM('am')}>AM</button>
+                  <button class="am-pm-button ${!isAM ? 'selected' : ''}" @click=${() => this.setAMPM('pm')}>PM</button>
+                </div>
+              ` : ''}
+            </div>
+          </div>
+        ` : ''}
+
+        ${this.enableTimezone ? html`
+          <div class="timezone-selector">
+            <div class="timezone-selector-title">Timezone</div>
+            <select class="timezone-select" .value=${this.timezone} @change=${this.handleTimezoneChange}>
+              ${DeesInputDatepickerPopup.TIMEZONES.map(tz => html`
+                <option value="${tz.value}" ?selected=${tz.value === this.timezone}>${tz.label}</option>
+              `)}
+            </select>
+          </div>
+        ` : ''}
+
+        <div class="calendar-actions">
+          <button class="action-button today-button" @click=${this.handleSelectToday}>Today</button>
+          <button class="action-button clear-action-button" @click=${this.handleClear}>Clear</button>
+        </div>
+      </div>
+    `;
+  }
+
+  private computePositionStyle(): string {
+    const rect = this.triggerRect!;
+    const left = rect.left;
+
+    if (this.opensToTop) {
+      const bottom = window.innerHeight - rect.top + 4;
+      return `left: ${left}px; bottom: ${bottom}px; top: auto`;
+    } else {
+      const top = rect.bottom + 4;
+      return `left: ${left}px; top: ${top}px`;
+    }
+  }
+
+  // Calendar logic
+  private getDaysInMonth(): Date[] {
+    const year = this.viewDate.getFullYear();
+    const month = this.viewDate.getMonth();
+    const firstDay = new Date(year, month, 1);
+    const lastDay = new Date(year, month + 1, 0);
+    const days: Date[] = [];
+
+    const startOffset = this.weekStartsOn === 1
+      ? (firstDay.getDay() === 0 ? 6 : firstDay.getDay() - 1)
+      : firstDay.getDay();
+
+    for (let i = startOffset; i > 0; i--) days.push(new Date(year, month, 1 - i));
+    for (let i = 1; i <= lastDay.getDate(); i++) days.push(new Date(year, month, i));
+    const remaining = 42 - days.length;
+    for (let i = 1; i <= remaining; i++) days.push(new Date(year, month + 1, i));
+
+    return days;
+  }
+
+  private isToday(date: Date): boolean {
+    const today = new Date();
+    return date.getDate() === today.getDate() && date.getMonth() === today.getMonth() && date.getFullYear() === today.getFullYear();
+  }
+
+  private isSelected(date: Date): boolean {
+    if (!this.selectedDate) return false;
+    return date.getDate() === this.selectedDate.getDate() && date.getMonth() === this.selectedDate.getMonth() && date.getFullYear() === this.selectedDate.getFullYear();
+  }
+
+  private isDayDisabled(date: Date): boolean {
+    if (this.minDate) { const min = new Date(this.minDate); if (date < min) return true; }
+    if (this.maxDate) { const max = new Date(this.maxDate); if (date > max) return true; }
+    if (this.disabledDates?.length) {
+      return this.disabledDates.some(ds => {
+        try { const d = new Date(ds); return date.getDate() === d.getDate() && date.getMonth() === d.getMonth() && date.getFullYear() === d.getFullYear(); }
+        catch { return false; }
+      });
+    }
+    return false;
+  }
+
+  private getEventsForDate(date: Date): IDateEvent[] {
+    if (!this.events?.length) return [];
+    const dateStr = `${date.getFullYear()}-${(date.getMonth() + 1).toString().padStart(2, '0')}-${date.getDate().toString().padStart(2, '0')}`;
+    return this.events.filter(e => e.date === dateStr);
+  }
+
+  private previousMonth(): void {
+    this.viewDate = new Date(this.viewDate.getFullYear(), this.viewDate.getMonth() - 1, 1);
+  }
+
+  private nextMonth(): void {
+    this.viewDate = new Date(this.viewDate.getFullYear(), this.viewDate.getMonth() + 1, 1);
+  }
+
+  // Event dispatching
+  private handleSelectDate(day: Date): void {
+    this.selectedDate = new Date(day.getFullYear(), day.getMonth(), day.getDate(), this.selectedHour, this.selectedMinute);
+    this.dispatchEvent(new CustomEvent('date-selected', { detail: this.selectedDate }));
+    if (!this.enableTime) {
+      this.dispatchEvent(new CustomEvent('close-request'));
+    }
+  }
+
+  private handleSelectToday(): void {
+    const today = new Date();
+    this.selectedDate = today;
+    this.viewDate = new Date(today);
+    this.selectedHour = today.getHours();
+    this.selectedMinute = today.getMinutes();
+    this.dispatchEvent(new CustomEvent('date-selected', { detail: this.selectedDate }));
+    if (!this.enableTime) {
+      this.dispatchEvent(new CustomEvent('close-request'));
+    }
+  }
+
+  private handleClear(): void {
+    this.dispatchEvent(new CustomEvent('date-cleared'));
+    this.dispatchEvent(new CustomEvent('close-request'));
+  }
+
+  private handleHourInput = (e: InputEvent): void => {
+    const input = e.target as HTMLInputElement;
+    let value = parseInt(input.value) || 0;
+    if (this.timeFormat === '12h') {
+      value = Math.max(1, Math.min(12, value));
+      if (this.selectedHour >= 12 && value !== 12) this.selectedHour = value + 12;
+      else if (this.selectedHour < 12 && value === 12) this.selectedHour = 0;
+      else this.selectedHour = value;
+    } else {
+      this.selectedHour = Math.max(0, Math.min(23, value));
+    }
+    this.emitTimeUpdate();
+  };
+
+  private handleMinuteInput = (e: InputEvent): void => {
+    const input = e.target as HTMLInputElement;
+    let value = parseInt(input.value) || 0;
+    value = Math.max(0, Math.min(59, value));
+    if (this.minuteIncrement > 1) value = Math.round(value / this.minuteIncrement) * this.minuteIncrement;
+    this.selectedMinute = value;
+    this.emitTimeUpdate();
+  };
+
+  private setAMPM(period: 'am' | 'pm'): void {
+    if (period === 'am' && this.selectedHour >= 12) this.selectedHour -= 12;
+    else if (period === 'pm' && this.selectedHour < 12) this.selectedHour += 12;
+    this.emitTimeUpdate();
+  }
+
+  private handleTimezoneChange = (e: Event): void => {
+    this.timezone = (e.target as HTMLSelectElement).value;
+    this.emitTimeUpdate();
+  };
+
+  private emitTimeUpdate(): void {
+    if (this.selectedDate) {
+      this.selectedDate = new Date(this.selectedDate.getFullYear(), this.selectedDate.getMonth(), this.selectedDate.getDate(), this.selectedHour, this.selectedMinute);
+      this.dispatchEvent(new CustomEvent('date-selected', { detail: this.selectedDate }));
+    }
+  }
+
+  // Show/hide lifecycle
+  public async show(): Promise<void> {
+    this.windowLayer = await DeesWindowLayer.createAndShow();
+    this.windowLayer.addEventListener('click', () => {
+      this.dispatchEvent(new CustomEvent('close-request'));
+    });
+
+    this.menuZIndex = zIndexRegistry.getNextZIndex();
+    zIndexRegistry.register(this, this.menuZIndex);
+    this.style.zIndex = this.menuZIndex.toString();
+
+    document.body.appendChild(this);
+
+    await domtools.plugins.smartdelay.delayFor(0);
+    this.visible = true;
+
+    window.addEventListener('scroll', this.handleScrollOrResize, { capture: true, passive: true });
+    window.addEventListener('resize', this.handleScrollOrResize, { passive: true });
+  }
+
+  public async hide(): Promise<void> {
+    if (this.isDestroying) return;
+    this.isDestroying = true;
+
+    window.removeEventListener('scroll', this.handleScrollOrResize, { capture: true } as EventListenerOptions);
+    window.removeEventListener('resize', this.handleScrollOrResize);
+    zIndexRegistry.unregister(this);
+
+    if (this.windowLayer) {
+      this.windowLayer.destroy();
+      this.windowLayer = null;
+    }
+
+    this.visible = false;
+    await domtools.plugins.smartdelay.delayFor(150);
+
+    if (this.parentElement) this.parentElement.removeChild(this);
+    this.isDestroying = false;
+  }
+
+  private handleScrollOrResize = (): void => {
+    this.dispatchEvent(new CustomEvent('reposition-request'));
+  };
+
+  async disconnectedCallback() {
+    await super.disconnectedCallback();
+    window.removeEventListener('scroll', this.handleScrollOrResize, { capture: true } as EventListenerOptions);
+    window.removeEventListener('resize', this.handleScrollOrResize);
+    zIndexRegistry.unregister(this);
+  }
+}