lovasoa
83 lines
2.9 KiB
JavaScript
83 lines
2.9 KiB
JavaScript
/* !include https://cdn.jsdelivr.net/npm/tom-select@2.4.1/dist/js/tom-select.popular.min.js */
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function sqlpage_select_dropdown() {
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for (const s of document.querySelectorAll(
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"[data-pre-init=select-dropdown]",
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)) {
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s.removeAttribute("data-pre-init");
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// See: https://github.com/orchidjs/tom-select/issues/716
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// By default, TomSelect will not retain the focus if s is already focused
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// This is a workaround to fix that
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const is_focused = s === document.activeElement;
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const tom = new TomSelect(s, {
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load: sqlpage_load_options_source(s.dataset.options_source),
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valueField: "value",
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labelField: "label",
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searchField: "label",
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create: s.dataset.create_new,
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maxOptions: null,
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onItemAdd: function () {
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this.setTextboxValue("");
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this.refreshOptions();
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},
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});
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if (is_focused) tom.focus();
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s.form?.addEventListener("reset", async () => {
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// The reset event is fired before the form is reset, so we need to wait for the next event loop
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await new Promise((resolve) => setTimeout(resolve, 0));
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// Sync the options with the new reset value
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tom.sync();
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// Wait for the options to be updated
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await new Promise((resolve) => setTimeout(resolve, 0));
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// "sync" also focuses the input, so we need to blur it to remove the focus
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tom.blur();
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tom.close();
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});
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}
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}
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function sqlpage_load_options_source(options_source) {
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if (!options_source) return;
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return async (query, callback) => {
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const err = (label) => callback([{ label, value: "" }]);
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const resp = await fetch(
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`${options_source}?search=${encodeURIComponent(query)}`,
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);
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if (!resp.ok) {
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return err(
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`Error loading options from "${options_source}": ${resp.status} ${resp.statusText}`,
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);
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}
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const resp_type = resp.headers.get("content-type");
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if (resp_type !== "application/json") {
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return err(
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`Invalid response type: ${resp_type} from "${options_source}". Make sure to use the 'json' component in the SQL file that generates the options.`,
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);
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}
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const results = await resp.json();
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if (!Array.isArray(results)) {
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return err(
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`Invalid response from "${options_source}". The response must be an array of objects with a 'label' and a 'value' property.`,
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);
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}
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if (results.length === 1 && results[0].error) {
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return err(results[0].error);
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}
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if (results.length > 0) {
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const keys = Object.keys(results[0]);
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if (
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keys.length !== 2 ||
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!keys.includes("label") ||
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!keys.includes("value")
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) {
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return err(
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`Invalid response from "${options_source}". The response must be an array of objects with a 'label' and a 'value' property. Got: ${JSON.stringify(results[0])} in the first object instead.`,
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);
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}
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}
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callback(results);
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};
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}
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add_init_fn(sqlpage_select_dropdown);
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