sundog-calculator/sundog-dog-food-calculator.js

1460 lines
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JavaScript
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2025-06-15 21:57:27 +02:00
/**
* Dog Calorie Calculator Widget
* Embeddable JavaScript widget for websites
*
* Usage:
* <script src="sundog-dog-food-calculator.js"></script>
* <div id="dog-calorie-calculator"></div>
*
* Or with options:
* <div id="dog-calorie-calculator" data-theme="dark" data-scale="1.2"></div>
*
* By Canine Nutrition and Wellness
* https://caninenutritionandwellness.com
*/
(function() {
'use strict';
// Inject widget styles with proper namespacing
const CSS_STYLES = `/* Sundog Dog Food Calorie Calculator Styles */
body {
margin: 0;
padding: 0;
background: transparent;
overflow-x: hidden;
font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
line-height: 1.5;
color: #6f3f6d;
}
.dog-calc-container {
max-width: 600px;
margin: 0 auto;
padding: 24px;
box-sizing: border-box;
opacity: 0;
transition: opacity 0.3s ease;
}
.dog-calc-container.loaded {
opacity: 1;
}
.dog-calc-container *,
.dog-calc-container *::before,
.dog-calc-container *::after {
box-sizing: border-box;
}
.dog-calc-section {
background: #fdfcfe;
border: 1px solid #e8e3ed;
border-radius: 8px 8px 0 0;
padding: 24px;
margin-bottom: 0;
box-shadow: 0 3px 6px rgba(0, 0, 0, 0.08);
}
.dog-calc-section-header {
display: flex;
justify-content: space-between;
align-items: center;
margin-bottom: 24px;
flex-wrap: wrap;
gap: 16px;
}
.dog-calc-section h2 {
margin: 0;
color: #6f3f6d;
font-size: 1.5rem;
font-weight: 600;
}
/* Unit Switch */
.dog-calc-unit-switch {
display: flex;
align-items: center;
gap: 12px;
}
.dog-calc-unit-label {
font-size: 0.9rem;
font-weight: 500;
color: #635870;
transition: color 0.2s ease;
}
.dog-calc-unit-label.active {
color: #6f3f6d;
font-weight: 600;
}
.dog-calc-switch {
position: relative;
display: inline-block;
width: 48px;
height: 24px;
}
.dog-calc-switch input {
opacity: 0;
width: 0;
height: 0;
}
.dog-calc-slider {
position: absolute;
cursor: pointer;
top: 0;
left: 0;
right: 0;
bottom: 0;
background-color: #e8e3ed;
transition: 0.3s;
border-radius: 24px;
}
.dog-calc-slider:before {
position: absolute;
content: "";
height: 18px;
width: 18px;
left: 3px;
bottom: 3px;
background-color: white;
transition: 0.3s;
border-radius: 50%;
box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}
.dog-calc-switch input:checked + .dog-calc-slider {
background-color: #f19a5f;
}
.dog-calc-switch input:checked + .dog-calc-slider:before {
transform: translateX(24px);
}
.dog-calc-form-group {
margin-bottom: 20px;
}
.dog-calc-form-group label {
display: block;
margin-bottom: 8px;
font-weight: 500;
color: #6f3f6d;
font-size: 1rem;
}
.dog-calc-form-group select,
.dog-calc-form-group input[type="number"],
.dog-calc-form-group input[type="text"] {
width: 100%;
padding: 12px 16px;
border: 1px solid #e8e3ed;
border-radius: 6px;
font-size: 1rem;
font-family: inherit;
background-color: #ffffff;
color: #6f3f6d;
transition: all 0.2s ease;
-webkit-appearance: none;
-moz-appearance: none;
appearance: none;
background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236f3f6d' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
background-repeat: no-repeat;
background-position: right 12px center;
background-size: 20px;
padding-right: 40px;
}
.dog-calc-form-group select option {
background-color: #ffffff;
color: #6f3f6d;
}
.dog-calc-form-group input[type="number"],
.dog-calc-form-group input[type="text"] {
background-image: none;
padding-right: 16px;
}
.dog-calc-form-group select:focus,
.dog-calc-form-group input[type="number"]:focus,
.dog-calc-form-group input[type="text"]:focus {
outline: none;
border-color: #f19a5f;
background-color: #ffffff;
box-shadow: 0 0 0 3px rgba(241, 154, 95, 0.1);
}
.dog-calc-form-group input[readonly] {
background-color: #f8f5fa;
cursor: not-allowed;
color: #635870;
}
.dog-calc-results {
background: linear-gradient(135deg, rgba(241, 154, 95, 0.08) 0%, rgba(241, 154, 95, 0.04) 100%);
border: 1px solid rgba(241, 154, 95, 0.2);
border-radius: 6px;
padding: 20px;
margin-top: 24px;
}
.dog-calc-result-item {
display: flex;
justify-content: space-between;
align-items: center;
margin-bottom: 12px;
}
.dog-calc-result-item:last-child {
margin-bottom: 0;
}
.dog-calc-result-label {
font-weight: 500;
color: #6f3f6d;
font-size: 0.95rem;
}
.dog-calc-result-value {
font-weight: 600;
color: #6f3f6d;
font-size: 1.1rem;
padding: 4px 12px;
background: rgba(241, 154, 95, 0.15);
border-radius: 4px;
}
.dog-calc-collapsible {
background: #ffffff;
border: 1px solid #e8e3ed;
border-top: none;
margin-bottom: 0;
overflow: hidden;
box-shadow: 0 3px 6px rgba(0, 0, 0, 0.08);
}
.dog-calc-collapsible-header {
background: #f8f5fa;
padding: 20px 24px;
border-bottom: 1px solid #e8e3ed;
}
.dog-calc-collapsible-header h3 {
margin: 0;
font-size: 1.25rem;
color: #6f3f6d;
font-weight: 600;
}
.dog-calc-collapsible-content {
display: block;
}
.dog-calc-collapsible-inner {
padding: 24px;
}
.dog-calc-input-group {
display: flex;
gap: 16px;
align-items: flex-end;
}
.dog-calc-input-group .dog-calc-form-group {
flex: 1;
margin-bottom: 0;
}
.dog-calc-unit-select {
min-width: 120px;
}
.dog-calc-error {
color: #e87159;
font-size: 0.875rem;
margin-top: 6px;
font-weight: 500;
}
.dog-calc-hidden {
display: none;
}
/* Action Buttons */
.dog-calc-action-buttons {
display: flex;
justify-content: center;
gap: 16px;
padding: 20px;
background: #f8f5fa;
border-left: 1px solid #e8e3ed;
border-right: 1px solid #e8e3ed;
margin-top: -1px;
box-shadow: 0 3px 6px rgba(0, 0, 0, 0.08);
}
.dog-calc-btn {
padding: 8px 16px;
border: 1px solid #e8e3ed;
border-radius: 6px;
font-size: 0.9rem;
font-weight: 500;
font-family: inherit;
cursor: pointer;
transition: all 0.2s ease;
display: inline-flex;
align-items: center;
gap: 6px;
background: white;
color: #6f3f6d;
}
.dog-calc-btn:hover {
transform: translateY(-1px);
box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}
.dog-calc-btn-share:hover {
border-color: #9f5999;
color: #9f5999;
}
.dog-calc-btn-embed:hover {
border-color: #7fa464;
color: #7fa464;
}
.dog-calc-footer {
text-align: center;
padding: 20px;
background: #fdfcfe;
border: 1px solid #e8e3ed;
border-radius: 0 0 8px 8px;
border-top: none;
margin-top: -1px;
box-shadow: 0 3px 6px rgba(0, 0, 0, 0.08);
}
.dog-calc-footer a {
color: #9f5999;
text-decoration: none;
font-size: 0.9rem;
font-weight: 500;
transition: color 0.2s ease;
}
.dog-calc-footer a:hover {
color: #f19a5f;
text-decoration: underline;
}
/* Mobile Responsive Design */
@media (max-width: 576px) {
.dog-calc-container {
padding: 16px;
}
.dog-calc-section,
.dog-calc-collapsible-inner {
padding: 20px;
}
.dog-calc-section h2,
.dog-calc-collapsible-header h3 {
font-size: 1.3rem;
}
.dog-calc-section-header {
flex-direction: column;
align-items: stretch;
gap: 12px;
}
.dog-calc-section h2 {
text-align: center;
}
.dog-calc-unit-switch {
justify-content: center;
}
.dog-calc-action-buttons {
flex-direction: column;
padding: 16px;
}
.dog-calc-btn {
width: 100%;
justify-content: center;
}
.dog-calc-input-group {
flex-direction: column;
gap: 20px;
}
.dog-calc-input-group .dog-calc-form-group {
margin-bottom: 20px;
}
.dog-calc-result-item {
flex-direction: column;
align-items: flex-start;
gap: 8px;
}
.dog-calc-result-value {
align-self: stretch;
text-align: center;
}
.dog-calc-collapsible-header {
padding: 16px 20px;
}
}
/* Dark theme - manual override */
.dog-calc-container.theme-dark {
color: #f5f3f7;
}
.dog-calc-container.theme-dark .dog-calc-section,
.dog-calc-container.theme-dark .dog-calc-collapsible {
background: #24202d;
border-color: #433c4f;
}
.dog-calc-container.theme-dark .dog-calc-collapsible-header {
background: #312b3b;
border-color: #433c4f;
}
.dog-calc-container.theme-dark .dog-calc-collapsible-header:hover {
background: #3a3446;
}
.dog-calc-container.theme-dark .dog-calc-section h2,
.dog-calc-container.theme-dark .dog-calc-collapsible-header h3,
.dog-calc-container.theme-dark .dog-calc-form-group label,
.dog-calc-container.theme-dark .dog-calc-result-label {
color: #f5f3f7;
}
.dog-calc-container.theme-dark .dog-calc-unit-label {
color: #b8b0c2;
}
.dog-calc-container.theme-dark .dog-calc-unit-label.active {
color: #f5f3f7;
}
.dog-calc-container.theme-dark .dog-calc-slider {
background-color: #433c4f;
}
.dog-calc-container.theme-dark .dog-calc-form-group select,
.dog-calc-container.theme-dark .dog-calc-form-group input[type="number"],
.dog-calc-container.theme-dark .dog-calc-form-group input[type="text"] {
background-color: #312b3b;
border-color: #433c4f;
color: #f5f3f7;
background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23f5f3f7' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
}
.dog-calc-container.theme-dark .dog-calc-form-group select option {
background-color: #312b3b;
color: #f5f3f7;
}
.dog-calc-container.theme-dark .dog-calc-form-group select:focus,
.dog-calc-container.theme-dark .dog-calc-form-group input[type="number"]:focus,
.dog-calc-container.theme-dark .dog-calc-form-group input[type="text"]:focus {
background-color: #312b3b;
border-color: #f19a5f;
}
.dog-calc-container.theme-dark .dog-calc-form-group input[readonly] {
background-color: #433c4f;
color: #b8b0c2;
}
.dog-calc-container.theme-dark .dog-calc-results {
background: linear-gradient(135deg, rgba(241, 154, 95, 0.15) 0%, rgba(241, 154, 95, 0.08) 100%);
border-color: rgba(241, 154, 95, 0.3);
}
.dog-calc-container.theme-dark .dog-calc-result-value {
color: #f5f3f7;
background: rgba(241, 154, 95, 0.2);
}
.dog-calc-container.theme-dark .dog-calc-footer {
background: #24202d;
border-color: #433c4f;
}
.dog-calc-container.theme-dark .dog-calc-action-buttons {
background: #312b3b;
border-color: #433c4f;
}
.dog-calc-container.theme-dark .dog-calc-btn {
background: #433c4f;
border-color: #433c4f;
color: #f5f3f7;
}
.dog-calc-container.theme-dark .dog-calc-btn:hover {
background: #524a5f;
border-color: #524a5f;
}
.dog-calc-container.theme-dark .dog-calc-btn-share:hover {
border-color: #9f5999;
color: #f19a5f;
}
.dog-calc-container.theme-dark .dog-calc-btn-embed:hover {
border-color: #7fa464;
color: #7fa464;
}
/* System theme - follows user's OS preference */
@media (prefers-color-scheme: dark) {
.dog-calc-container.theme-system {
color: #f5f3f7;
}
.dog-calc-container.theme-system .dog-calc-section,
.dog-calc-container.theme-system .dog-calc-collapsible {
background: #24202d;
border-color: #433c4f;
}
.dog-calc-container.theme-system .dog-calc-collapsible-header {
background: #312b3b;
border-color: #433c4f;
}
.dog-calc-container.theme-system .dog-calc-collapsible-header:hover {
background: #3a3446;
}
.dog-calc-container.theme-system .dog-calc-section h2,
.dog-calc-container.theme-system .dog-calc-collapsible-header h3,
.dog-calc-container.theme-system .dog-calc-form-group label,
.dog-calc-container.theme-system .dog-calc-result-label {
color: #f5f3f7;
}
.dog-calc-container.theme-system .dog-calc-unit-label {
color: #b8b0c2;
}
.dog-calc-container.theme-system .dog-calc-unit-label.active {
color: #f5f3f7;
}
.dog-calc-container.theme-system .dog-calc-slider {
background-color: #433c4f;
}
.dog-calc-container.theme-system .dog-calc-form-group select,
.dog-calc-container.theme-system .dog-calc-form-group input[type="number"],
.dog-calc-container.theme-system .dog-calc-form-group input[type="text"] {
background-color: #312b3b;
border-color: #433c4f;
color: #f5f3f7;
background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23f5f3f7' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
}
.dog-calc-container.theme-system .dog-calc-form-group select option {
background-color: #312b3b;
color: #f5f3f7;
}
.dog-calc-container.theme-system .dog-calc-form-group select:focus,
.dog-calc-container.theme-system .dog-calc-form-group input[type="number"]:focus,
.dog-calc-container.theme-system .dog-calc-form-group input[type="text"]:focus {
background-color: #312b3b;
border-color: #f19a5f;
}
.dog-calc-container.theme-system .dog-calc-form-group input[readonly] {
background-color: #433c4f;
color: #b8b0c2;
}
.dog-calc-container.theme-system .dog-calc-results {
background: linear-gradient(135deg, rgba(241, 154, 95, 0.15) 0%, rgba(241, 154, 95, 0.08) 100%);
border-color: rgba(241, 154, 95, 0.3);
}
.dog-calc-container.theme-system .dog-calc-result-value {
color: #f5f3f7;
background: rgba(241, 154, 95, 0.2);
}
.dog-calc-container.theme-system .dog-calc-footer {
background: #24202d;
border-color: #433c4f;
}
.dog-calc-container.theme-system .dog-calc-action-buttons {
background: #312b3b;
border-color: #433c4f;
}
.dog-calc-container.theme-system .dog-calc-btn {
background: #433c4f;
border-color: #433c4f;
color: #f5f3f7;
}
.dog-calc-container.theme-system .dog-calc-btn:hover {
background: #524a5f;
border-color: #524a5f;
}
.dog-calc-container.theme-system .dog-calc-btn-share:hover {
border-color: #9f5999;
color: #f19a5f;
}
.dog-calc-container.theme-system .dog-calc-btn-embed:hover {
border-color: #7fa464;
color: #7fa464;
}
}
/* Modal Styles */
.dog-calc-modal {
display: none;
position: fixed;
z-index: 10000;
left: 0;
top: 0;
width: 100%;
height: 100%;
background-color: rgba(0, 0, 0, 0.5);
animation: fadeIn 0.3s ease;
}
@keyframes fadeIn {
from { opacity: 0; }
to { opacity: 1; }
}
.dog-calc-modal-content {
position: relative;
background-color: #ffffff;
margin: 5% auto;
padding: 30px;
border: 1px solid #e8e3ed;
border-radius: 12px;
width: 90%;
max-width: 500px;
box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
animation: slideIn 0.3s ease;
}
.dog-calc-modal-embed {
max-width: 700px;
}
@keyframes slideIn {
from {
opacity: 0;
transform: translateY(-20px);
}
to {
opacity: 1;
transform: translateY(0);
}
}
.dog-calc-modal-close {
position: absolute;
right: 20px;
top: 20px;
font-size: 28px;
font-weight: 300;
color: #6f3f6d;
cursor: pointer;
transition: color 0.2s ease;
}
.dog-calc-modal-close:hover {
color: #f19a5f;
}
.dog-calc-modal h3 {
margin: 0 0 24px 0;
color: #6f3f6d;
font-size: 1.5rem;
}
/* Share Modal */
.dog-calc-share-buttons {
display: grid;
grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
gap: 12px;
margin-bottom: 20px;
}
.dog-calc-share-btn {
padding: 12px 16px;
border: none;
border-radius: 6px;
font-size: 0.9rem;
font-weight: 500;
color: white;
cursor: pointer;
transition: all 0.2s ease;
display: flex;
align-items: center;
justify-content: center;
gap: 8px;
font-family: inherit;
}
.dog-calc-share-facebook { background: #1877f2; }
.dog-calc-share-facebook:hover { background: #1664d1; transform: translateY(-1px); }
.dog-calc-share-twitter { background: #1da1f2; }
.dog-calc-share-twitter:hover { background: #1991da; transform: translateY(-1px); }
.dog-calc-share-linkedin { background: #0a66c2; }
.dog-calc-share-linkedin:hover { background: #084d95; transform: translateY(-1px); }
.dog-calc-share-email { background: #6f3f6d; }
.dog-calc-share-email:hover { background: #5a3357; transform: translateY(-1px); }
.dog-calc-share-copy { background: #f19a5f; }
.dog-calc-share-copy:hover { background: #e87741; transform: translateY(-1px); }
.dog-calc-share-url {
display: flex;
width: 100%;
}
.dog-calc-share-url input {
flex: 1;
width: 100%;
padding: 10px 16px;
border: 1px solid #e8e3ed;
border-radius: 6px;
font-size: 0.9rem;
font-family: monospace;
background: #f8f5fa;
color: #6f3f6d;
}
/* Embed Modal */
.dog-calc-embed-options {
display: flex;
flex-direction: column;
gap: 24px;
}
.dog-calc-embed-option {
border: 1px solid #e8e3ed;
border-radius: 8px;
padding: 20px;
background: #fcfafd;
}
.dog-calc-embed-option h4 {
margin: 0 0 8px 0;
color: #6f3f6d;
font-size: 1.1rem;
}
.dog-calc-embed-option p {
margin: 0 0 16px 0;
color: #635870;
font-size: 0.9rem;
}
/* Default (light theme) code containers */
.dog-calc-code-container {
position: relative;
background: #ffffff;
border: 1px solid #e8e3ed;
border-radius: 6px;
overflow: hidden;
}
.dog-calc-code-container pre {
margin: 0;
padding: 16px 60px 16px 16px;
overflow-x: auto;
}
.dog-calc-code-container code {
color: #312b3b;
font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
font-size: 0.85rem;
line-height: 1.4;
}
.dog-calc-copy-btn {
position: absolute;
top: 8px;
right: 8px;
padding: 6px 10px;
background: #f19a5f;
color: white;
border: none;
border-radius: 4px;
font-size: 0.8rem;
font-weight: 500;
cursor: pointer;
transition: all 0.2s ease;
font-family: inherit;
z-index: 1;
}
.dog-calc-copy-btn:hover { background: #e87741; }
.dog-calc-copy-btn.copied { background: #7fa464; }
.dog-calc-copy-btn.copied:hover { background: #7fa464; }
/* Dark theme modal styles */
.dog-calc-container.theme-dark .dog-calc-modal-content {
background-color: #24202d;
border-color: #433c4f;
}
.dog-calc-container.theme-dark .dog-calc-modal h3 {
color: #f5f3f7;
}
.dog-calc-container.theme-dark .dog-calc-modal-close {
color: #f5f3f7;
}
.dog-calc-container.theme-dark .dog-calc-modal-close:hover {
color: #f19a5f;
}
.dog-calc-container.theme-dark .dog-calc-share-url input {
background: #312b3b;
border-color: #433c4f;
color: #f5f3f7;
}
.dog-calc-container.theme-dark .dog-calc-embed-option {
background: #312b3b;
border-color: #433c4f;
}
.dog-calc-container.theme-dark .dog-calc-embed-option h4 {
color: #f5f3f7;
}
.dog-calc-container.theme-dark .dog-calc-embed-option p {
color: #b8b0c2;
}
/* Dark theme code containers - different from embed option background */
.dog-calc-container.theme-dark .dog-calc-code-container {
background: #1a1621;
border-color: #2a2330;
}
.dog-calc-container.theme-dark .dog-calc-code-container code {
color: #f5f3f7;
}
/* System theme modal styles */
@media (prefers-color-scheme: dark) {
.dog-calc-container.theme-system .dog-calc-modal-content {
background-color: #24202d;
border-color: #433c4f;
}
.dog-calc-container.theme-system .dog-calc-modal h3 {
color: #f5f3f7;
}
.dog-calc-container.theme-system .dog-calc-modal-close {
color: #f5f3f7;
}
.dog-calc-container.theme-system .dog-calc-modal-close:hover {
color: #f19a5f;
}
.dog-calc-container.theme-system .dog-calc-share-url input {
background: #312b3b;
border-color: #433c4f;
color: #f5f3f7;
}
.dog-calc-container.theme-system .dog-calc-embed-option {
background: #312b3b;
border-color: #433c4f;
}
.dog-calc-container.theme-system .dog-calc-embed-option h4 {
color: #f5f3f7;
}
.dog-calc-container.theme-system .dog-calc-embed-option p {
color: #b8b0c2;
}
/* System theme code containers - different from embed option background */
.dog-calc-container.theme-system .dog-calc-code-container {
background: #1a1621;
border-color: #2a2330;
}
.dog-calc-container.theme-system .dog-calc-code-container code {
color: #f5f3f7;
}
}`;
function injectStyles() {
if (document.getElementById('dog-calc-styles')) return;
const style = document.createElement('style');
style.id = 'dog-calc-styles';
style.textContent = CSS_STYLES;
document.head.appendChild(style);
}
// Main widget class
class DogCalorieCalculatorWidget {
constructor(container, options = {}) {
this.container = container;
this.options = {
theme: options.theme || this.getThemeFromURL() || 'system',
scale: options.scale || this.getScaleFromURL() || 1.0,
...options
};
this.init();
}
init() {
// Insert the transformed calculator HTML
this.container.innerHTML = `<div class="dog-calc-container" id="dogCalc">
<div class="dog-calc-section">
<div class="dog-calc-section-header">
<h2>Dog's Characteristics</h2>
<div class="dog-calc-unit-switch">
<span class="dog-calc-unit-label active" id="metricLabel">Metric</span>
<label class="dog-calc-switch">
<input type="checkbox" id="unitToggle">
<span class="dog-calc-slider"></span>
</label>
<span class="dog-calc-unit-label" id="imperialLabel">Imperial</span>
</div>
</div>
<div class="dog-calc-form-group">
<label for="dogType">Dog Type / Activity Level:</label>
<select id="dogType" aria-describedby="dogTypeHelp">
<option value="">Select dog type...</option>
<option value="3.0">Puppy (0-4 months)</option>
<option value="2.0">Puppy (4 months - adult)</option>
<option value="1.2">Adult - inactive/obese</option>
<option value="1.6">Adult (neutered/spayed) - average activity</option>
<option value="1.8">Adult (intact) - average activity</option>
<option value="1.0">Adult - weight loss</option>
<option value="1.7">Adult - weight gain</option>
<option value="2.0">Working dog - light work</option>
<option value="3.0">Working dog - moderate work</option>
<option value="5.0">Working dog - heavy work</option>
<option value="1.1">Senior dog</option>
</select>
</div>
<div class="dog-calc-form-group">
<label for="weight" id="weightLabel">Dog's Weight (kg):</label>
<input type="number" id="weight" min="0.1" step="0.1" placeholder="Enter weight in kg" aria-describedby="weightHelp">
<div id="weightError" class="dog-calc-error dog-calc-hidden">Please enter a valid weight (minimum 0.1 kg)</div>
</div>
<div class="dog-calc-results" id="calorieResults" style="display: none;">
<div class="dog-calc-result-item">
<span class="dog-calc-result-label">Resting Energy Requirement (RER):</span>
<span class="dog-calc-result-value" id="rerValue">- cal/day</span>
</div>
<div class="dog-calc-result-item">
<span class="dog-calc-result-label">Maintenance Energy Requirement (MER):</span>
<span class="dog-calc-result-value" id="merValue">- cal/day</span>
</div>
</div>
</div>
<div class="dog-calc-collapsible active" id="foodCalculator">
<div class="dog-calc-collapsible-header">
<h3>How much should I feed?</h3>
</div>
<div class="dog-calc-collapsible-content">
<div class="dog-calc-collapsible-inner">
<div class="dog-calc-input-group">
<div class="dog-calc-form-group">
<label for="foodEnergy" id="foodEnergyLabel">Food Energy Content:</label>
<input type="number" id="foodEnergy" min="1" step="1" placeholder="Enter energy content" aria-describedby="foodEnergyHelp">
<div id="foodEnergyError" class="dog-calc-error dog-calc-hidden">Please enter a valid energy content</div>
</div>
<div class="dog-calc-form-group">
<label for="energyUnit">Unit:</label>
<select id="energyUnit" class="dog-calc-unit-select" aria-describedby="energyUnitHelp">
<option value="kcal100g">kcal/100g</option>
<option value="kcalkg">kcal/kg</option>
<option value="kcalcup">kcal/cup</option>
<option value="kcalcan">kcal/can</option>
</select>
</div>
</div>
<div class="dog-calc-results" id="dailyFoodResults" style="display: none;">
<div class="dog-calc-result-item">
<span class="dog-calc-result-label">Daily Food Amount:</span>
<span class="dog-calc-result-value" id="dailyFoodValue">- g/day</span>
</div>
</div>
<div class="dog-calc-form-group" style="margin-top: 20px;">
<label for="days">Number of Days:</label>
<input type="number" id="days" min="1" step="1" value="1" placeholder="Enter number of days" aria-describedby="daysHelp">
<div id="daysError" class="dog-calc-error dog-calc-hidden">Please enter a valid number of days (minimum 1)</div>
</div>
<div class="dog-calc-input-group">
<div class="dog-calc-form-group">
<label for="totalFoodDisplay">Total Food Amount:</label>
<input type="text" id="totalFoodDisplay" readonly>
</div>
<div class="dog-calc-form-group">
<label for="unit">Unit:</label>
<select id="unit" class="dog-calc-unit-select" aria-describedby="unitHelp">
<option value="g">grams (g)</option>
<option value="kg">kilograms (kg)</option>
<option value="oz">ounces (oz)</option>
<option value="lb">pounds (lb)</option>
</select>
</div>
</div>
</div>
</div>
</div>
<div class="dog-calc-action-buttons">
<button class="dog-calc-btn dog-calc-btn-share" id="shareBtn">
Share
</button>
<button class="dog-calc-btn dog-calc-btn-embed" id="embedBtn">
Embed
</button>
</div>
<div class="dog-calc-footer">
<a href="https://caninenutritionandwellness.com" target="_blank" rel="noopener noreferrer">
by caninenutritionandwellness.com
</a>
</div>
</div>
<!-- Share Modal -->
<div id="shareModal" class="dog-calc-modal" style="display: none;">
<div class="dog-calc-modal-content">
<span class="dog-calc-modal-close" id="shareModalClose">&times;</span>
<h3>Share Calculator</h3>
<div class="dog-calc-share-buttons">
<button class="dog-calc-share-btn dog-calc-share-facebook" id="shareFacebook">
Facebook
</button>
<button class="dog-calc-share-btn dog-calc-share-twitter" id="shareTwitter">
Twitter
</button>
<button class="dog-calc-share-btn dog-calc-share-linkedin" id="shareLinkedIn">
LinkedIn
</button>
<button class="dog-calc-share-btn dog-calc-share-email" id="shareEmail">
Email
</button>
<button class="dog-calc-share-btn dog-calc-share-copy" id="shareCopy">
Copy Link
</button>
</div>
<div class="dog-calc-share-url">
<input type="text" id="shareUrl" readonly>
</div>
</div>
</div>
<!-- Embed Modal -->
<div id="embedModal" class="dog-calc-modal" style="display: none;">
<div class="dog-calc-modal-content dog-calc-modal-embed">
<span class="dog-calc-modal-close" id="embedModalClose">&times;</span>
<h3> Embed the Calculator</h3>
<div class="dog-calc-embed-options">
<div class="dog-calc-embed-option">
<h4> JavaScript Widget</h4>
<div class="dog-calc-code-container">
<pre><code id="widgetCode"></code></pre>
<button class="dog-calc-copy-btn" id="copyWidget">
Copy
</button>
</div>
</div>
<div class="dog-calc-embed-option">
<h4>🛡 iframe Embed</h4>
<div class="dog-calc-code-container">
<pre><code id="iframeCode"></code></pre>
<button class="dog-calc-copy-btn" id="copyIframe">
Copy
</button>
</div>
</div>
</div>
</div>
</div>`;
// Apply widget-specific settings
this.applyTheme();
this.applyScale();
// Initialize the calculator with the same functionality as iframe
this.initCalculator();
}
initCalculator() {
const container = this.container;
// Helper functions to scope DOM queries to this widget
const $ = (selector) => container.querySelector(selector);
const $$ = (selector) => container.querySelectorAll(selector);
// Create calculator instance with exact same logic as iframe
const calc = {
currentMER: 0,
isImperial: false,
theme: this.options.theme,
scale: this.options.scale,
// Exact same calculation methods from iframe
calculateRER: (weightKg) => 70 * Math.pow(weightKg, 0.75),
calculateMER: (rer, factor) => rer * factor,
formatNumber: (num, decimals = 0) => {
if (decimals === 0) return Math.round(num).toString();
return num.toFixed(decimals).replace(/\.?0+$/, '');
},
validateInput: (value, min = 0, isInteger = false) => {
const num = parseFloat(value);
if (isNaN(num) || num < min) return false;
if (isInteger && !Number.isInteger(num)) return false;
return true;
},
convertUnits: (grams, unit) => {
switch (unit) {
case 'kg': return grams / 1000;
case 'oz': return grams / 28.3495;
case 'lb': return grams / 453.592;
default: return grams;
}
},
getWeightInKg: () => {
const weightInput = $('#weight');
if (!weightInput || !weightInput.value) return null;
const weight = parseFloat(weightInput.value);
if (isNaN(weight)) return null;
return calc.isImperial ? weight / 2.20462 : weight;
},
getFoodEnergyPer100g: () => {
const foodEnergyInput = $('#foodEnergy');
const energyUnitSelect = $('#energyUnit');
if (!foodEnergyInput || !foodEnergyInput.value || !energyUnitSelect) return null;
const energy = parseFloat(foodEnergyInput.value);
if (isNaN(energy)) return null;
const unit = energyUnitSelect.value;
switch (unit) {
case 'kcal100g': return energy;
case 'kcalkg': return energy / 10;
case 'kcalcup': return energy / 1.2;
case 'kcalcan': return energy / 4.5;
default: return energy;
}
},
showError: (elementId, show = true) => {
const errorElement = $('#' + elementId);
if (errorElement) {
if (show) {
errorElement.classList.remove('dog-calc-hidden');
} else {
errorElement.classList.add('dog-calc-hidden');
}
}
},
updateCalorieCalculations: () => {
const dogTypeSelect = $('#dogType');
const calorieResults = $('#calorieResults');
const rerValue = $('#rerValue');
const merValue = $('#merValue');
if (!dogTypeSelect || !calorieResults || !rerValue || !merValue) return;
const weightKg = calc.getWeightInKg();
const dogTypeFactor = dogTypeSelect.value;
calc.showError('weightError', false);
if (!weightKg || weightKg < 0.1) {
const weightInput = $('#weight');
if (weightInput && weightInput.value) calc.showError('weightError', true);
calorieResults.style.display = 'none';
return;
}
if (!dogTypeFactor) {
calorieResults.style.display = 'none';
return;
}
const factor = parseFloat(dogTypeFactor);
const rer = calc.calculateRER(weightKg);
const mer = calc.calculateMER(rer, factor);
calc.currentMER = mer;
rerValue.textContent = calc.formatNumber(rer, 0) + ' cal/day';
merValue.textContent = calc.formatNumber(mer, 0) + ' cal/day';
calorieResults.style.display = 'block';
calc.updateFoodCalculations();
},
updateFoodCalculations: () => {
if (calc.currentMER === 0) return;
const daysInput = $('#days');
const unitSelect = $('#unit');
const dailyFoodResults = $('#dailyFoodResults');
const dailyFoodValue = $('#dailyFoodValue');
const totalFoodDisplay = $('#totalFoodDisplay');
if (!daysInput || !unitSelect || !dailyFoodResults || !dailyFoodValue || !totalFoodDisplay) return;
const energyPer100g = calc.getFoodEnergyPer100g();
const days = daysInput.value;
const unit = unitSelect.value;
calc.showError('foodEnergyError', false);
calc.showError('daysError', false);
if (!energyPer100g || energyPer100g < 0.1) {
const foodEnergyInput = $('#foodEnergy');
if (foodEnergyInput && foodEnergyInput.value) calc.showError('foodEnergyError', true);
dailyFoodResults.style.display = 'none';
totalFoodDisplay.value = '';
return;
}
if (!days || !calc.validateInput(days, 1, true)) {
if (days) calc.showError('daysError', true);
totalFoodDisplay.value = '';
return;
}
const numDays = parseInt(days);
const dailyFoodGrams = (calc.currentMER / energyPer100g) * 100;
const totalFoodGrams = dailyFoodGrams * numDays;
dailyFoodValue.textContent = calc.formatNumber(dailyFoodGrams, 1) + ' g/day';
dailyFoodResults.style.display = 'block';
const convertedAmount = calc.convertUnits(totalFoodGrams, unit);
const unitLabel = unit === 'g' ? 'g' : unit === 'kg' ? 'kg' : unit === 'oz' ? 'oz' : 'lb';
const decimals = unit === 'g' ? 0 : unit === 'kg' ? 2 : 1;
totalFoodDisplay.value = calc.formatNumber(convertedAmount, decimals) + ' ' + unitLabel;
},
// Unit switching methods (missing from previous version!)
toggleUnits: () => {
const toggle = $('#unitToggle');
calc.isImperial = toggle.checked;
calc.updateUnitLabels();
calc.convertExistingValues();
calc.updateCalorieCalculations();
},
updateUnitLabels: () => {
const metricLabel = $('#metricLabel');
const imperialLabel = $('#imperialLabel');
const weightLabel = $('#weightLabel');
const weightInput = $('#weight');
const unitSelect = $('#unit');
const energyUnitSelect = $('#energyUnit');
if (metricLabel && imperialLabel) {
metricLabel.classList.toggle('active', !calc.isImperial);
imperialLabel.classList.toggle('active', calc.isImperial);
}
if (calc.isImperial) {
if (weightLabel) weightLabel.textContent = "Dog's Weight (lbs):";
if (weightInput) {
weightInput.placeholder = "Enter weight in lbs";
weightInput.min = "0.2";
weightInput.step = "0.1";
}
if (unitSelect) {
unitSelect.innerHTML = '<option value="oz">ounces (oz)</option>' +
'<option value="lb">pounds (lb)</option>' +
'<option value="g">grams (g)</option>' +
'<option value="kg">kilograms (kg)</option>';
}
// Set energy unit to kcal/cup for imperial
if (energyUnitSelect && energyUnitSelect.value === 'kcal100g') {
energyUnitSelect.value = 'kcalcup';
}
} else {
if (weightLabel) weightLabel.textContent = "Dog's Weight (kg):";
if (weightInput) {
weightInput.placeholder = "Enter weight in kg";
weightInput.min = "0.1";
weightInput.step = "0.1";
}
if (unitSelect) {
unitSelect.innerHTML = '<option value="g">grams (g)</option>' +
'<option value="kg">kilograms (kg)</option>' +
'<option value="oz">ounces (oz)</option>' +
'<option value="lb">pounds (lb)</option>';
}
// Set energy unit to kcal/100g for metric
if (energyUnitSelect && energyUnitSelect.value === 'kcalcup') {
energyUnitSelect.value = 'kcal100g';
}
}
},
convertExistingValues: () => {
const weightInput = $('#weight');
if (weightInput && weightInput.value) {
const currentWeight = parseFloat(weightInput.value);
if (!isNaN(currentWeight)) {
if (calc.isImperial) {
weightInput.value = calc.formatNumber(currentWeight * 2.20462, 1);
} else {
weightInput.value = calc.formatNumber(currentWeight / 2.20462, 1);
}
}
}
},
bindEvents: () => {
const weightInput = $('#weight');
const dogTypeSelect = $('#dogType');
const foodEnergyInput = $('#foodEnergy');
const daysInput = $('#days');
const unitSelect = $('#unit');
const energyUnitSelect = $('#energyUnit');
const unitToggle = $('#unitToggle');
if (weightInput) {
weightInput.addEventListener('input', () => calc.updateCalorieCalculations());
}
if (dogTypeSelect) dogTypeSelect.addEventListener('change', () => calc.updateCalorieCalculations());
if (foodEnergyInput) {
foodEnergyInput.addEventListener('input', () => calc.updateFoodCalculations());
}
if (energyUnitSelect) energyUnitSelect.addEventListener('change', () => calc.updateFoodCalculations());
if (daysInput) {
daysInput.addEventListener('input', () => calc.updateFoodCalculations());
}
if (unitSelect) unitSelect.addEventListener('change', () => calc.updateFoodCalculations());
if (unitToggle) unitToggle.addEventListener('change', () => calc.toggleUnits());
},
init: () => {
calc.bindEvents();
calc.updateUnitLabels(); // Initialize unit labels
const calcContainer = $('#dogCalc');
if (calcContainer) {
calcContainer.classList.add('loaded');
}
}
};
calc.init();
return calc;
}
getThemeFromURL() {
const urlParams = new URLSearchParams(window.location.search);
const theme = urlParams.get('theme');
return ['light', 'dark', 'system'].includes(theme) ? theme : null;
}
getScaleFromURL() {
const urlParams = new URLSearchParams(window.location.search);
const scale = parseFloat(urlParams.get('scale'));
return (!isNaN(scale) && scale >= 0.5 && scale <= 2.0) ? scale : null;
}
applyTheme() {
if (this.options.theme === 'light' || this.options.theme === 'dark') {
this.container.classList.add('theme-' + this.options.theme);
}
}
applyScale() {
const scale = Math.max(0.5, Math.min(2.0, this.options.scale));
if (scale !== 1.0) {
this.container.style.transform = `scale(${scale})`;
this.container.style.transformOrigin = 'top left';
}
}
}
// Auto-initialize widgets on page load
function initializeWidget() {
injectStyles();
const containers = document.querySelectorAll('#dog-calorie-calculator, .dog-calorie-calculator');
containers.forEach(container => {
if (container.dataset.initialized) return;
const options = {
theme: container.dataset.theme || 'system',
scale: parseFloat(container.dataset.scale) || 1.0
};
new DogCalorieCalculatorWidget(container, options);
container.dataset.initialized = 'true';
});
}
// Initialize when DOM is ready
if (document.readyState === 'loading') {
document.addEventListener('DOMContentLoaded', initializeWidget);
} else {
initializeWidget();
}
// Export for manual initialization
window.DogCalorieCalculatorWidget = DogCalorieCalculatorWidget;
})();