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/* SPDX-License-Identifier: AGPL-3.0-or-later */
/* global 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);
}
searxng.ready(function () {
qinput = d.getElementById(qinput_id);
if (qinput !== null) {
// clear button
createClearButton(qinput);
// autocompleter
if (searxng.settings.autocomplete_provider) {
searxng.autocomplete = AutoComplete.call(w, {
Url: "./autocompleter",
EmptyMessage: searxng.settings.translations.no_item_found,
HttpMethod: searxng.settings.http_method,
HttpHeaders: {
"Content-type": "application/x-www-form-urlencoded",
"X-Requested-With": "XMLHttpRequest"
},
MinChars: searxng.settings.autocomplete_min,
Delay: 300,
_Position: function () {},
_Open: function () {
var params = this;
Array.prototype.forEach.call(this.DOMResults.getElementsByTagName("li"), function (li) {
if (li.getAttribute("class") != "locked") {
li.onmousedown = function () {
params._Select(li);
};
}
});
},
_Select: function (item) {
AutoComplete.defaults._Select.call(this, item);
var form = item.closest('form');
if (form) {
form.submit();
}
},
_MinChars: function () {
if (this.Input.value.indexOf('!') > -1) {
return 0;
} else {
return AutoComplete.defaults._MinChars.call(this);
}
},
KeyboardMappings: Object.assign({}, AutoComplete.defaults.KeyboardMappings, {
"KeyUpAndDown_up": Object.assign({}, AutoComplete.defaults.KeyboardMappings.KeyUpAndDown_up, {
Callback: function (event) {
AutoComplete.defaults.KeyboardMappings.KeyUpAndDown_up.Callback.call(this, event);
var liActive = this.DOMResults.querySelector("li.active");
if (liActive) {
AutoComplete.defaults._Select.call(this, liActive);
}
},
}),
"Tab": Object.assign({}, AutoComplete.defaults.KeyboardMappings.Enter, {
Conditions: [{
Is: 9,
Not: false
}],
Callback: function (event) {
if (this.DOMResults.getAttribute("class").indexOf("open") != -1) {
var liActive = this.DOMResults.querySelector("li.active");
if (liActive !== null) {
AutoComplete.defaults._Select.call(this, liActive);
event.preventDefault();
}
}
},
})
}),
}, "#" + qinput_id);
}
/*
Monkey patch autocomplete.js to fix a bug
With the POST method, the values are not URL encoded: query like "1 + 1" are sent as "1 1" since space are URL encoded as plus.
See HTML specifications:
* HTML5: https://url.spec.whatwg.org/#concept-urlencoded-serializer
* HTML4: https://www.w3.org/TR/html401/interact/forms.html#h-17.13.4.1
autocomplete.js does not URL encode the name and values:
https://github.com/autocompletejs/autocomplete.js/blob/87069524f3b95e68f1b54d8976868e0eac1b2c83/src/autocomplete.ts#L665
The monkey patch overrides the compiled version of the ajax function.
See https://github.com/autocompletejs/autocomplete.js/blob/87069524f3b95e68f1b54d8976868e0eac1b2c83/dist/autocomplete.js#L143-L158
The patch changes only the line 156 from
params.Request.send(params._QueryArg() + "=" + params._Pre());
to
params.Request.send(encodeURIComponent(params._QueryArg()) + "=" + encodeURIComponent(params._Pre()));
Related to:
* https://github.com/autocompletejs/autocomplete.js/issues/78
* https://github.com/searxng/searxng/issues/1695
*/
AutoComplete.prototype.ajax = function (params, request, timeout) {
if (timeout === void 0) { timeout = true; }
if (params.$AjaxTimer) {
window.clearTimeout(params.$AjaxTimer);
}
if (timeout === true) {
params.$AjaxTimer = window.setTimeout(AutoComplete.prototype.ajax.bind(null, params, request, false), params.Delay);
} else {
if (params.Request) {
params.Request.abort();
}
params.Request = request;
params.Request.send(encodeURIComponent(params._QueryArg()) + "=" + encodeURIComponent(params._Pre()));
}
};
if (!isMobile && document.querySelector('.index_endpoint')) {
qinput.focus();
}
}
// 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");
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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