Add new custom element for handling report ID or location
Looks purty.
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2 changed files with 213 additions and 39 deletions
209
html/static/js/address-or-report-suggestion.js
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209
html/static/js/address-or-report-suggestion.js
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class AddressOrReportInput extends HTMLElement {
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// make element form-associated
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static formAssociated = true;
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constructor() {
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super();
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this.attachShadow({mode: "open" });
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this.internals = this.attachInternals();
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this.render();
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// Element references
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this._input = this.shadowRoot.querySelector("input");
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this._suggestions = this.shadowRoot.querySelector(".suggestions-container");
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// Bind methods
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this._handleInput = this._handleInput.bind(this);
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// Debounce timer
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this._debounceTimer = null;
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// The suggestion data
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this._suggestionData = null;
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}
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// Lifecycle: when element is added to the DOM
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connectedCallback() {
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this._input.addEventListener("input", this._handleInput);
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}
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// Lifecycle: when element is removed from the DOM
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disconnectedCallback() {
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this._input.removeEventListener('input', this._handleInput);
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}
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// Lifecycle: watch these attributes for changes
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static get observedAttributes() {
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return ['placeholder', 'api-key'];
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}
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// Lifecycle: respond to attribute changes
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attributeChangedCallback(name, oldValue, newValue) {
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if (name === 'placeholder' && this._input) {
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this._input.placeholder = newValue;
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}
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if (name === 'api-key') {
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this._apiKey = newValue;
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}
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}
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// Properties API
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get value() {
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return this._input ? this._input.value : '';
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}
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set value(val) {
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if (this._input) {
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this._input.value = val;
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const entries = new FormData();
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entries.append("address", val);
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this.internals.setFormValue(entries);
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}
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}
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// Private methods
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_handleInput(event) {
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const searchText = event.target.value.trim();
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// Clear previous timer
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clearTimeout(this._debounceTimer);
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// Clear suggestions if input is less than 3 characters
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if (searchText.length < 3) {
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this._suggestions.innerHTML = '';
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return;
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}
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// Debounce API calls (wait 300ms after typing stops)
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this._debounceTimer = setTimeout(() => {
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this._fetchAddressSuggestions(searchText)
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.then(response => {
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this._renderSuggestions(response.features);
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});
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}, 300);
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}
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async _fetchAddressSuggestions(text) {
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try {
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const url = `https://api.mapbox.com/search/geocode/v6/forward?q=${encodeURIComponent(text)}&access_token=${this._apiKey}`;
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const response = await fetch(url);
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const data = await response.json();
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return data;
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} catch (error) {
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console.error('Error fetching geocoding suggestions:', error);
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}
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}
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_renderSuggestions(suggestions) {
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console.log("Rendering suggestions", suggestions);
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this._suggestions.innerHTML = suggestions.map((item, index) => {
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if (item.properties.place_formatted != "") {
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return `
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<div class="suggestion-item list-group-item"
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data-index="${index}"
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data-lat="${item.geometry.coordinates[1]}"
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data-lng="${item.geometry.coordinates[0]}">
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<div class="main-address">${item.properties.name || item.properties.full_address}</div>
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<div class="place-info">${item.properties.place_formatted}</div>
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</div>`
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} else {
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return `
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<div class="suggestion-item list-group-item"
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data-index="${index}"
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data-lat="${item.coordinates.lat}"
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data-lng="${item.coordinates.lng}">
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<div class="main-address">${item.properties.name || item.properties.full_address}</div>
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<div class="place-info">${item.properties.place_formatted}</div>
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</div>`
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}
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}).join('');
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// Add click listeners to suggestions
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this.shadowRoot.querySelectorAll('.suggestion-item').forEach(el => {
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el.addEventListener('click', e => {
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const index = parseInt(el.dataset.index);
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const suggestion = suggestions[index];
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this.SetValue(suggestion);
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// Dispatch custom event
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this.dispatchEvent(new CustomEvent('address-selected', {
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bubbles: true,
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composed: true, // Allows event to cross shadow DOM boundary
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detail: {
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location: suggestion
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}
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}));
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});
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});
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}
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// Initial render of component
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render() {
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const placeholder = this.getAttribute('placeholder') || 'Enter address';
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this.shadowRoot.innerHTML = `
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<style>
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@import url('/static/css/bootstrap.css');
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@import url('https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/css/all.min.css');
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.detail-label {
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font-size: 0.8rem;
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text-transform: uppercase;
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color: #6c757d;
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margin-bottom: 2px;
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font-weight: 600;
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}
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.detail-value {
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font-weight: 500;
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}
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.main-address {
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font-weight: 500;
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}
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.place-info {
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font-size: 0.85rem;
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color: #6c757d;
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margin-top: 2px;
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}
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.suggestions-container {
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position: absolute;
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width: 100%;
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max-height: 300px;
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overflow-y: auto;
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z-index: 1000;
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box-shadow: 0 4px 8px rgba(0,0,0,0.1);
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}
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.suggestion-item {
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cursor: pointer;
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padding: 10px 12px;
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border-bottom: 1px solid #f0f0f0;
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}
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.suggestion-item:hover {
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background-color: #f8f9fa;
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}
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</style>
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<div class="input-group">
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<span class="input-group-text"><i class="fas fa-search"></i></span>
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<input type="text" class="form-control form-control-lg" id="addressSearch" name="address" placeholder="${placeholder}">
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<div id="suggestions" class="suggestions-container list-group"></div>
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</div>
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`;
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}
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// Public methods
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clear() {
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if (this._input) {
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this._input.value = '';
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this._suggestions.innerHTML = '';
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}
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}
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SetValue(suggestion) {
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this.value = suggestion.properties.full_address;
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this._suggestions.innerHTML = '';
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}
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}
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customElements.define('address-or-report-input', AddressOrReportInput);
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