@manufosela/marked-calendar

Interactive calendar web component for tracking moods, habits, or marking dates

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Marked Calendar

Calendar for tracking habits, moods, and events with color legends.

← Back to components GitHub Repo Playground npm

Interactive Mode (save-data)

Click a mood/color first, then click days to mark them. Data persists in localStorage.

Click "Get Marked Days" to see data

<marked-calendar save-data weekends change-view></marked-calendar>

Month View

Start directly in month view.

<marked-calendar view="month" change-view save-data></marked-calendar>

Spanish Language

Use lang="es" for Spanish labels.

<marked-calendar lang="es" name="Año en Pixeles"></marked-calendar>

Custom Legend

Define custom colors and labels via light DOM.

Completed
Missed
Partial

<marked-calendar save-data>
  <ul id="legend">
    <li code="#22c55e" label="✓">Completed</li>
    <li code="#ef4444" label="✗">Missed</li>
    <li code="#f59e0b" label="½">Partial</li>
  </ul>
</marked-calendar>

With Holidays

Define holidays that will be blocked from selection.

1/1
25/12
1/5

<marked-calendar save-data weekends>
  <ul id="holidays">
    <li title="New Year">1/1</li>
    <li title="Christmas">25/12</li>
  </ul>
</marked-calendar>

Read-Only Display

Without save-data, calendar is view-only.

<marked-calendar name="Display Only"></marked-calendar>

Demo code (CodePen-ready HTML, CSS, JS)

HTML (html)

<h1>Marked Calendar</h1>
<p class="subtitle">Calendar for tracking habits, moods, and events with color legends.</p>
<div class="demo-links">
  <a href="https://manufosela.dev/ui-components/">← Back to components</a>
  <a href="https://github.com/manufosela/ui-components/tree/main/packages/marked-calendar" target="_blank" rel="noopener">GitHub Repo</a>
  <a href="playground.html">Playground</a>
  <a href="https://www.npmjs.com/package/@manufosela/marked-calendar" target="_blank" rel="noopener">npm</a>
</div>
<div class="demo-theme-toggle">
  <theme-toggle theme="dark"></theme-toggle>
</div>
<div class="demo-section">
    <h2>Interactive Mode (save-data)</h2>
    <p>Click a mood/color first, then click days to mark them. Data persists in localStorage.</p>
    <marked-calendar id="interactive" name="My Year 2024" save-data weekends change-view></marked-calendar>
    <div class="buttons">
      <button id="clearData">Clear All Data</button>
      <button id="getData">Get Marked Days</button>
    </div>
    <div class="output" id="output">Click "Get Marked Days" to see data</div>
    <div class="code-block">&lt;marked-calendar save-data weekends change-view&gt;&lt;/marked-calendar&gt;</div>
      
  </div>

  <div class="demo-section">
    <h2>Month View</h2>
    <p>Start directly in month view.</p>
  <marked-calendar view="month" name="January Tracker" change-view save-data></marked-calendar>
  <div class="code-block">&lt;marked-calendar view="month" change-view save-data&gt;&lt;/marked-calendar&gt;</div>
  </div>

  <div class="demo-section">
    <h2>Spanish Language</h2>
    <p>Use lang="es" for Spanish labels.</p>
    <marked-calendar lang="es" name="Año en Pixeles" change-view></marked-calendar>
    <div class="code-block">&lt;marked-calendar lang="es" name="Año en Pixeles"&gt;&lt;/marked-calendar&gt;</div>
  </div>

  <div class="demo-section">
    <h2>Custom Legend</h2>
    <p>Define custom colors and labels via light DOM.</p>
    <marked-calendar id="custom" name="Habit Tracker" save-data>
      <ul id="legend">
        <li code="#22c55e" label="✓">Completed</li>
        <li code="#ef4444" label="✗">Missed</li>
        <li code="#f59e0b" label="½">Partial</li>
      </ul>
    </marked-calendar>
    <div class="code-block">&lt;marked-calendar save-data&gt;
  &lt;ul id="legend"&gt;
    &lt;li code="#22c55e" label="✓"&gt;Completed&lt;/li&gt;
    &lt;li code="#ef4444" label="✗"&gt;Missed&lt;/li&gt;
    &lt;li code="#f59e0b" label="½"&gt;Partial&lt;/li&gt;
  &lt;/ul&gt;
&lt;/marked-calendar&gt;</div>
  </div>

  <div class="demo-section">
    <h2>With Holidays</h2>
    <p>Define holidays that will be blocked from selection.</p>
    <marked-calendar id="holidays" name="Work Calendar" save-data weekends>
      <ul id="holidays">
        <li title="New Year">1/1</li>
        <li title="Christmas">25/12</li>
        <li title="Labor Day">1/5</li>
      </ul>
    </marked-calendar>
    <div class="code-block">&lt;marked-calendar save-data weekends&gt;
  &lt;ul id="holidays"&gt;
    &lt;li title="New Year"&gt;1/1&lt;/li&gt;
    &lt;li title="Christmas"&gt;25/12&lt;/li&gt;
  &lt;/ul&gt;
&lt;/marked-calendar&gt;</div>
  </div>

  <div class="demo-section">
    <h2>Read-Only Display</h2>
    <p>Without save-data, calendar is view-only.</p>
    <marked-calendar id="readonly" name="Display Only"></marked-calendar>
    <div class="code-block">&lt;marked-calendar name="Display Only"&gt;&lt;/marked-calendar&gt;</div>
  </div>

CSS (css)

:root {
  --bg: #0c0f14;
  --bg-elevated: #141923;
  --bg-panel: #171d28;
  --border: #262f3f;
  --text: #f4f6fb;
  --text-muted: #a7b0c2;
  --text-dim: #7d879b;
  --accent: #ff8a3d;
  --accent-strong: #ff6a00;
  --accent-soft: rgba(255, 138, 61, 0.16);
  --shadow: 0 20px 50px rgba(5, 8, 14, 0.45);
  --radius-lg: 22px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --max-width: 1160px;
}

h1 { color: #1d1d1f; }
    .demo-section {
      background: white;
      padding: 2rem;
      border-radius: 12px;
      margin-bottom: 2rem;
      box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    }
    h2 { margin-top: 0; color: #1d1d1f; }
    p { color: #86868b; line-height: 1.6; }
    a { color: #3b82f6; }
    .output {
      margin-top: 1rem;
      padding: 1rem;
      background: #f5f5f7;
      border-radius: 8px;
      font-family: monospace;
      font-size: 0.9rem;
    }
    .code-block {
      background: #1d1d1f;
      color: #f5f5f7;
      padding: 1rem;
      border-radius: 8px;
      font-family: monospace;
      font-size: 0.8rem;
      margin-top: 1rem;
      overflow-x: auto;
      white-space: pre;
    }
    .buttons {
      display: flex;
      gap: 0.5rem;
      margin-top: 1rem;
      flex-wrap: wrap;
    }
    button {
      padding: 0.5rem 1rem;
      border: none;
      border-radius: 6px;
      background: #3b82f6;
      color: white;
      cursor: pointer;
    }
    button:hover { background: #2563eb; }
  
    footer {
      text-align: center;
      margin-top: 3rem;
      padding-top: 2rem;
      border-top: 1px solid #d2d2d7;
      color: #86868b;
      font-size: 0.9rem;
    }
    footer a { color: #1d1d1f; text-decoration: none; }
    footer a:hover { text-decoration: underline; }
  


@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;600;700&display=swap');

:root {
  --bg: #f5f5f7;
  --bg-2: #ffffff;
  --bg-spot-1: #f8e9d0;
  --bg-spot-2: #e8eef8;
  --card: #ffffff;
  --text: #1d1d1f;
  --muted: #6b7280;
  --line: #e5e7eb;
  --accent: #ffb000;
  --accent-2: #00a7d6;
  --accent-soft: rgba(255, 176, 0, 0.18);
  --surface-1: #f3f4f6;
  --surface-2: #eef2f7;
  --code-bg: #111827;
  --code-text: #f9fafb;
  --panel-bg: rgba(255, 255, 255, 0.85);
  --overlay-bg: rgba(255, 255, 255, 0.98);
}

:root.dark {
  --bg: #0f1117;
  --bg-2: #151a26;
  --bg-spot-1: #1a2136;
  --bg-spot-2: #1d1b34;
  --card: #1c2233;
  --text: #f3f6ff;
  --muted: #b8c0d9;
  --line: #2b3247;
  --accent: #ffb000;
  --accent-2: #00d0ff;
  --accent-soft: rgba(255, 176, 0, 0.25);
  --surface-1: #0b0f1a;
  --surface-2: #263046;
  --code-bg: #0b0f1a;
  --code-text: #d6d9e6;
  --panel-bg: rgba(28, 34, 51, 0.8);
  --overlay-bg: rgba(15, 17, 23, 0.98);
}

* {
  box-sizing: border-box;
}

a {
  color: var(--accent);
}

h1 {
  color: var(--accent);
}

.demo-links {
  margin-top: 12px;
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.demo-links a {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 12px;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.85rem;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.demo-links a:hover {
  color: var(--text);
  border-color: var(--accent-2);
}

.demo-theme-toggle {
  margin-top: 12px;
  display: flex;
  justify-content: center;
}

header {
  border-bottom: 1px solid var(--line);
}

.demo-card,
.section,
.demo-section,
.panel,
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  color: var(--text);
  box-shadow: 0 18px 36px rgba(6, 10, 24, 0.45);
}

.demo-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.demo-card .code-block {
  margin-top: auto;
}

.demo-grid,
.grid {
  align-items: stretch;
}

.demo-card h2,
.demo-card h3,
.section h2,
.demo-section h2,
.panel-header {
  color: var(--text);
}

.label,
.stat-label,
.category-title,
.subtitle,
.hint,
.note {
  color: var(--muted);
}

.info-item,
.capability,
.preference,
.option-group,
.output,
.current-url,
.event-log,
.result-card,
.log,
.stat {
  background: var(--surface-1);
  border: 1px solid var(--line);
  color: var(--text);
}

.info-item .label,
.capability .name {
  color: var(--muted);
}

.panel-header,
.options,
.topbar,
.top-links {
  background: var(--panel-bg);
  border-bottom: 1px solid var(--line);
  color: var(--text);
}

.subtitle,
.hint,
.note,
.demo-card p,
.section p,
.demo-section p {
  color: var(--muted);
}

.code-block,
pre,
code {
  background: var(--code-bg);
  color: var(--code-text);
  border-radius: 8px;
}

.value-display,
.output,
.result,
.demo-output {
  background: var(--surface-1);
  border: 1px solid var(--line);
  color: var(--text);
}

button {
  background: linear-gradient(120deg, var(--accent), #ff6a00);
  color: #111;
  border: none;
}

button:hover {
  filter: brightness(1.05);
}

input,
select,
textarea {
  background: var(--surface-1);
  color: var(--text);
  border: 1px solid var(--line);
}

footer {
  color: var(--muted);
}

footer a {
  color: var(--text);
}

arc-slider {
  --arc-slider-text-color: var(--text);
  --arc-slider-value-bg: var(--surface-1);
  --arc-slider-value-border: var(--line);
  --arc-slider-value-shadow: 0 6px 16px rgba(0, 0, 0, 0.35);
}

rich-select {
  --caller-background: var(--card);
  --caller-color: var(--text);
  --caller-border: 1px solid var(--line);
  --caller-hover-background: var(--surface-2);
  --caller-hover-color: var(--text);
  --caller-hover-border-color: var(--line);
  --caller-focus-border-color: var(--accent-2);
  --caller-focus-shadow: 0 0 0 3px rgba(0, 208, 255, 0.25);
  --caller-disabled-background: var(--surface-1);
  --caller-disabled-color: #6b7280;
  --caller-disabled-border-color: var(--line);
  --arrow-color: var(--muted);
  --selectOptions-background: var(--card);
  --selectOptions-border: 1px solid var(--line);
  --selectOptions-shadow: 0 10px 22px rgba(0, 0, 0, 0.45);
  --input-background: var(--surface-1);
  --input-border: 1px solid var(--line);
  --input-color: var(--text);
  --input-placeholder-color: #6b7280;
  --option-color: var(--text);
  --option-hover-background: var(--surface-2);
  --option-hover-color: var(--text);
  --option-active-background: var(--accent);
  --option-active-color: #111;
  --option-selected-background: var(--accent-soft);
  --option-selected-color: var(--text);
  --option-disabled-background: var(--surface-1);
  --option-disabled-color: #6b7280;
}

multi-select {
  --multi-select-bg: var(--card);
  --multi-select-border-color: var(--line);
  --multi-select-border-hover: var(--line);
  --multi-select-border-focus: var(--accent-2);
  --multi-select-text-color: var(--text);
  --multi-select-placeholder-color: #6b7280;
  --multi-select-arrow-color: var(--muted);
  --multi-select-dropdown-bg: var(--card);
  --multi-select-shadow: 0 10px 22px rgba(0, 0, 0, 0.45);
  --multi-select-option-hover-bg: var(--surface-2);
  --multi-select-option-selected-bg: var(--accent-soft);
}

tab-nav {
  --tab-bg: var(--card);
  --tab-border: var(--line);
  --tab-text: var(--muted);
  --tab-active-text: var(--text);
  --tab-hover-bg: var(--surface-2);
  --tab-active-border: var(--accent);
  --tab-disabled: #9ca3af;
}

slider-underline {
  --slider-track: var(--surface-2);
  --slider-fill: var(--accent);
  --slider-thumb: var(--accent);
  --slider-label-color: var(--text);
  --slider-tick-color: #9ca3af;
  --slider-tick-value-color: var(--muted);
}

header-nav {
  --header-bg: var(--card);
  --header-shadow: 0 12px 24px rgba(0, 0, 0, 0.2);
  --header-link-color: var(--text);
  --header-link-hover: var(--accent);
  --header-mobile-hover-bg: var(--surface-2);
}

calendar-inline {
  --calendar-bg: var(--card);
  --calendar-shadow: 0 12px 24px rgba(0, 0, 0, 0.2);
  --calendar-text: var(--text);
  --calendar-accent: var(--accent);
  --calendar-today: var(--accent-soft);
  --calendar-selected: var(--accent);
  --calendar-hover-bg: var(--surface-2);
  --calendar-muted: var(--muted);
  --calendar-muted-strong: #9ca3af;
  --calendar-other-month: #9ca3af;
  --calendar-disabled: #cbd5e1;
  --calendar-holiday: #ef4444;
  --calendar-holiday-selected: #111;
}

marked-calendar {
  --calendar-bg: var(--card);
  --calendar-border: var(--line);
  --calendar-title: var(--text);
  --calendar-muted: var(--muted);
  --calendar-surface: var(--surface-1);
  --calendar-accent: var(--accent);
  --calendar-accent-hover: #ff7a1a;
  --calendar-border-strong: var(--line);
  --calendar-contrast: #111;
  --calendar-nav-bg: var(--surface-1);
  --calendar-nav-hover: var(--surface-2);
}

radar-chart {
  --radar-bg: var(--card);
  --radar-grid-color: var(--line);
  --radar-axis-color: #94a3b8;
  --radar-label-color: var(--muted);
}

multi-carousel {
  --carousel-bg: var(--card);
  --carousel-arrow-bg: var(--surface-1);
  --carousel-arrow-color: var(--text);
  --carousel-arrow-hover-bg: var(--surface-2);
  --carousel-arrow-hover-color: var(--text);
  --carousel-nav-bg: var(--surface-1);
  --carousel-nav-color: var(--muted);
  --carousel-nav-hover: #9ca3af;
  --carousel-nav-active: var(--accent);
  --carousel-focus-color: var(--accent-2);
}

nav-list {
  --nav-list-bg: var(--card);
  --nav-list-border-color: var(--line);
  --nav-list-selected-border-color: var(--accent);
  --nav-list-selected-bg: var(--surface-2);
  --nav-list-hover-bg: var(--surface-2);
  --nav-list-selected-color: var(--text);
}

theme-toggle {
  --theme-toggle-bg: var(--card);
  --theme-toggle-icon-color: var(--muted);
  --theme-toggle-hover-bg: var(--surface-2);
  --theme-toggle-active-bg: var(--surface-1);
  --theme-toggle-active-color: var(--text);
  --theme-toggle-dark-bg: var(--card);
  --theme-toggle-dark-border: var(--line);
  --theme-toggle-dark-icon-color: var(--muted);
  --theme-toggle-dark-active-bg: var(--surface-1);
  --theme-toggle-dark-active-color: var(--text);
  --theme-toggle-dark-hover-bg: var(--surface-2);
}

qr-code {
  --qr-fg: #0f1117;
  --qr-bg: #f3f6ff;
}

click-clock {
  --clock-color: var(--text);
  --clock-bg: var(--card);
  --clock-muted-color: var(--muted);
}

historical-line {
  --title-color: var(--text);
  --border-color: var(--line);
  --year-bg: var(--surface-1);
}

circle-steps {
  --steps-muted: var(--muted);
  --steps-text: var(--text);
  --steps-pending: var(--surface-2);
}

rich-inputfile {
  --input-border: var(--line);
  --input-border-focus: var(--accent-2);
  --input-bg: var(--card);
  --input-label-color: var(--text);
  --input-hover-bg: var(--surface-2);
  --input-drag-bg: var(--accent-soft);
  --input-disabled-bg: var(--surface-1);
  --input-success-border: #22c55e;
  --input-success-bg: rgba(34, 197, 94, 0.12);
  --input-icon-color: #94a3b8;
  --input-text-color: var(--muted);
  --input-accent-color: var(--accent-2);
  --input-file-bg: var(--surface-1);
  --input-preview-bg: var(--surface-1);
  --input-file-name-color: var(--text);
  --input-file-size-color: var(--muted);
  --input-error-color: #ef4444;
  --input-hint-color: var(--muted);
}

data-card {
  --data-card-bg: var(--card);
  --data-card-border-color: var(--line);
  --data-card-title-color: var(--text);
  --data-card-desc-color: var(--muted);
  --data-card-info-bg: var(--overlay-bg);
  --data-card-info-close-bg: var(--surface-2);
  --data-card-info-close-color: var(--text);
  --data-card-info-close-hover-bg: var(--surface-1);
  --data-card-info-text: var(--text);
  --data-card-loading-color: var(--muted);
  --data-card-info-trigger-hover: var(--accent);
}

app-modal {
  --app-modal-bg: var(--card);
  --app-modal-body-color: var(--text);
  --app-modal-standalone-bg: rgba(255, 176, 0, 0.35);
  --app-modal-standalone-color: #111;
  --app-modal-standalone-hover-bg: rgba(255, 176, 0, 0.6);
}

JS (js)

document.querySelectorAll('.footer-year').forEach(el => el.textContent = new Date().getFullYear());
  

    import "https://esm.sh/@manufosela/marked-calendar";

    const interactive = document.getElementById('interactive');
    const output = document.getElementById('output');

    document.getElementById('clearData').addEventListener('click', () => {
      interactive.clearData();
      output.textContent = 'Data cleared!';
    });

    document.getElementById('getData').addEventListener('click', () => {
      const days = interactive.getMarkedDays();
      output.textContent = days.length > 0
        ? JSON.stringify(days, null, 2)
        : 'No days marked yet';
    });

    interactive.addEventListener('marked-calendar-change', (e) => {
      console.log('Day changed:', e.detail);
    });

    interactive.addEventListener('marked-calendar-view-change', (e) => {
      console.log('View changed:', e.detail);
    });

    // Pre-populate readonly with some data
    const readonly = document.getElementById('readonly');
    setTimeout(() => {
      readonly._data = {
        [`${readonly.year}-0-4`]: 1,
        [`${readonly.year}-0-5`]: 2,
        [`${readonly.year}-0-6`]: 1,
        [`${readonly.year}-1-10`]: 3,
        [`${readonly.year}-1-11`]: 4,
        [`${readonly.year}-2-20`]: 5
      };
      readonly.requestUpdate();
    }, 100);
  

  import '../../theme-toggle/src/theme-toggle.js';

  const root = document.documentElement;
  root.classList.add('dark');

  const toggle = document.querySelector('theme-toggle');
  if (toggle) {
    toggle.theme = root.classList.contains('dark') ? 'dark' : 'light';
    toggle.addEventListener('theme-changed', (event) => {
      const theme = event.detail?.theme;
      if (!theme) return;
      root.classList.toggle('dark', theme === 'dark');
    });
  }