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/* SPDX-License-Identifier: AGPL-3.0-or-later */
/* exported AutoComplete */
(function (w, d, searxng) {
'use strict';
var qinput_id = "q", qinput;
const isMobile = window.matchMedia("only screen and (max-width: 50em)").matches;
function submitIfQuery () {
if (qinput.value.length > 0) {
var search = document.getElementById('search');
setTimeout(search.submit.bind(search), 0);
}
}
function createClearButton (qinput) {
var cs = document.getElementById('clear_search');
var updateClearButton = function () {
if (qinput.value.length === 0) {
cs.classList.add("empty");
} else {
cs.classList.remove("empty");
}
};
// update status, event listener
updateClearButton();
cs.addEventListener('click', function (ev) {
qinput.value = '';
qinput.focus();
updateClearButton();
ev.preventDefault();
});
qinput.addEventListener('input', updateClearButton, false);
}
const fetchResults = async (query) => {
let request;
if (searxng.settings.method === 'GET') {
const reqParams = new URLSearchParams();
reqParams.append("q", query);
request = fetch("./autocompleter?" + reqParams.toString());
} else {
const formData = new FormData();
formData.append("q", query);
request = fetch("./autocompleter", {
method: 'POST',
body: formData,
});
}
request.then(async function (response) {
const results = await response.json();
if (!results) return;
const autocomplete = d.querySelector(".autocomplete");
const autocompleteList = d.querySelector(".autocomplete ul");
autocomplete.classList.add("open");
autocompleteList.innerHTML = "";
// show an error message that no result was found
if (!results[1] || results[1].length == 0) {
const noItemFoundMessage = document.createElement("li");
noItemFoundMessage.classList.add('no-item-found');
noItemFoundMessage.innerHTML = searxng.settings.translations.no_item_found;
autocompleteList.appendChild(noItemFoundMessage);
return;
}
for (let result of results[1]) {
const li = document.createElement("li");
li.innerText = result;
searxng.on(li, 'mousedown', () => {
qinput.value = result;
const form = d.querySelector("#search");
form.submit();
autocomplete.classList.remove('open');
});
autocompleteList.appendChild(li);
}
});
};
searxng.ready(function () {
// focus search input on large screens
if (!isMobile) document.getElementById("q").focus();
qinput = d.getElementById(qinput_id);
const autocomplete = d.querySelector(".autocomplete");
const autocompleteList = d.querySelector(".autocomplete ul");
if (qinput !== null) {
// clear button
createClearButton(qinput);
// autocompleter
if (searxng.settings.autocomplete) {
searxng.on(qinput, 'input', () => {
const query = qinput.value;
if (query.length < searxng.settings.autocomplete_min) return;
setTimeout(() => {
if (query == qinput.value) fetchResults(query);
}, 300);
});
searxng.on(qinput, 'keyup', (e) => {
let currentIndex = -1;
const listItems = autocompleteList.children;
for (let i = 0; i < listItems.length; i++) {
if (listItems[i].classList.contains('active')) {
currentIndex = i;
break;
}
}
let newCurrentIndex = -1;
if (e.key === "ArrowUp") {
if (currentIndex >= 0) listItems[currentIndex].classList.remove('active');
// we need to add listItems.length to the index calculation here because the JavaScript modulos
// operator doesn't work with negative numbers
newCurrentIndex = (currentIndex - 1 + listItems.length) % listItems.length;
} else if (e.key === "ArrowDown") {
if (currentIndex >= 0) listItems[currentIndex].classList.remove('active');
newCurrentIndex = (currentIndex + 1) % listItems.length;
} else if (e.key === "Tab" || e.key === "Enter") {
autocomplete.classList.remove('open');
}
if (newCurrentIndex != -1) {
const selectedItem = listItems[newCurrentIndex];
selectedItem.classList.add('active');
if (!selectedItem.classList.contains('no-item-found')) qinput.value = selectedItem.innerText;
}
});
}
}
// Additionally to searching when selecting a new category, we also
// automatically start a new search request when the user changes a search
// filter (safesearch, time range or language) (this requires JavaScript
// though)
if (
qinput !== null
&& searxng.settings.search_on_category_select
// If .search_filters is undefined (invisible) we are on the homepage and
// hence don't have to set any listeners
&& d.querySelector(".search_filters") != null
) {
searxng.on(d.getElementById('safesearch'), 'change', submitIfQuery);
searxng.on(d.getElementById('time_range'), 'change', submitIfQuery);
searxng.on(d.getElementById('language'), 'change', submitIfQuery);
}
const categoryButtons = d.querySelectorAll("button.category_button");
for (let button of categoryButtons) {
searxng.on(button, 'click', (event) => {
if (event.shiftKey) {
event.preventDefault();
button.classList.toggle("selected");
return;
}
// manually deselect the old selection when a new category is selected
const selectedCategories = d.querySelectorAll("button.category_button.selected");
for (let categoryButton of selectedCategories) {
categoryButton.classList.remove("selected");
}
button.classList.add("selected");
});
}
// override form submit action to update the actually selected categories
const form = d.querySelector("#search");
if (form != null) {
searxng.on(form, 'submit', (event) => {
event.preventDefault();
const categoryValuesInput = d.querySelector("#selected-categories");
if (categoryValuesInput) {
let categoryValues = [];
for (let categoryButton of categoryButtons) {
if (categoryButton.classList.contains("selected")) {
categoryValues.push(categoryButton.name.replace("category_", ""));
}
}
categoryValuesInput.value = categoryValues.join(",");
}
form.submit();
});
}
});
})(window, document, window.searxng);
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