309 lines
13 KiB
JavaScript
309 lines
13 KiB
JavaScript
import { IgniteHtml } from '../ignite-html/ignite-html.js';
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import { IgniteElement } from "../ignite-html/ignite-element.js";
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import { IgniteTemplate, list, div, input, button, h4, span } from "../ignite-html/ignite-template.js";
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import { Chip } from "./chip.js";
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import { Popper } from "./popper.js";
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import { LinearProgress } from "./linear-progress.js";
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class ChipList extends IgniteElement {
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constructor() {
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super();
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}
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get styles() {
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return /*css*/`
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mt-chip-list {
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display: flex;
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flex-direction: row;
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flex-wrap: wrap;
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gap: 12px;
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border: solid 0.13rem #ced4da;
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border-radius: 0.3rem;
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padding: 0.4rem;
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}
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mt-chip-list.no-border {
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border-color: transparent;
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}
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mt-chip-list:focus {
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outline: none;
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}
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mt-chip-list:hover {
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cursor: pointer;
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}
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mt-chip-list.editing {
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border: solid 0.13rem rgba(0,0,0,0.1);
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border-radius: 0.3rem;
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}
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mt-chip-list.placeholder {
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border: solid 0.13rem #ced4da;
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border-radius: 0.3rem;
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color: rgba(0,0,0,0.6);
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}
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mt-chip-list > .input-container {
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display: flex;
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flex-direction: column;
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justify-content: center;
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flex: 1;
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flex-basis: auto;
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flex-shrink: 1;
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}
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mt-chip-list > .input-container > .input {
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outline: none;
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}
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mt-chip-list .search-result:hover {
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background-color: #e0e0e0;
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border-radius: 0.3em;
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}
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`;
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}
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get properties() {
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return {
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items: [],
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itemsMax: Number.MAX_SAFE_INTEGER,
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placeholder: null,
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stopEditingOnBlur: true,
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editing: false,
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input: null,
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searchBox: null,
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search: true,
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searching: false,
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showSearchResults: true,
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searchLoading: false,
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searchResults: null,
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searchPlaceholder: "No results found.",
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searchFooter: null,
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onSearch: null,
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onSearchDelay: 200,
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onSearchCallback: null,
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blurTimeout: null,
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documentListener: null,
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freeForm: true,
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chipBackground: null,
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chipColor: null,
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changed: false,
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border: false,
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readOnly: false,
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};
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}
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render() {
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return this.template
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.style("position", "relative")
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.class(this.border, value => value ? null : "no-border")
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.class(this.editing, value => value ? "editing" : null)
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.attribute("tabindex", "0")
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.onFocus(e => this.onFocus())
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.class([this.editing, this.items], (editing, items) => {
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return !editing && (items == null || items.length == 0) ? "placeholder" : null;
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})
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.child(
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new span(this.placeholder).hide([this.editing, this.items], (editing, items) => {
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return editing || (items != null && items.length > 0);
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}),
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new list(this.items, (item) => {
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return new Chip()
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.id(item.id)
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.property("color", item.chipColor ? item.chipColor : this.chipColor)
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.property("background", item.chipBackground ? item.chipBackground : this.chipBackground)
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.property("readOnly", this.readOnly)
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.property("onDelete", () => {
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this.items = this.items.filter(needle => needle != item);
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this.changed = true; //Make sure changed flag was set.
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})
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.child(item.content);
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}),
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new div()
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.class("input-container")
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.child(
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new div()
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.class("input")
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.attribute("contenteditable", "true")
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.hide(this.editing, value => { return !value; })
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.ref(this.input)
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.onEnter((e) => {
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e.preventDefault();
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//If we are read only don't do anything.
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if (this.readOnly) {
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return;
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}
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//If this chip allows free form input then add a new item.
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if (this.freeForm && this.input.textContent.trim().length >= 1) {
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if (this.items == null) {
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this.items = [];
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}
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//Add a new item to the chip list.
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this.items.push({ content: this.input.textContent.trim() });
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this.input.innerHTML = "";
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this.searching = false; //Reset searching since we just added a item.
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this.changed = true; //Make sure changed flag was set.
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}
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})
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.onBackspace((e) => {
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//If we are read only don't do anything.
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if (this.readOnly) {
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return;
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}
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//If the backspace key is pressed and there is no content, try to remove the last item from the list.
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if (this.input.textContent.length == 0 || (this.input.textContent.length == 1 && this.input.textContent[0] == " ")) {
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e.preventDefault();
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if (this.items) {
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this.items.pop();
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this.changed = true; //Make sure changed flag was set.
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}
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this.searching = false;
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}
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})
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.on("keydown", (e) => {
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//If we are read only don't do anything.
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if (this.readOnly) {
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return;
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}
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//If the escape key is pressed stop searching until something else happens.
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if (e.key == "Escape") {
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this.searching = false;
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e.preventDefault();
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e.stopPropagation();
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return;
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}
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//Reset the searching and input if we get a tab, since the browser
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//will focus the next avaiable element.
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if (e.key == "Tab") {
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this.searching = false;
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if (this.stopEditingOnBlur) {
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this.editing = false;
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//Fire a change event if there was a change.
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if (this.changed) {
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this.changed = false;
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this.dispatchEvent(new Event("change"));
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}
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}
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this.input.innerHTML = "";
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return;
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}
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//If we are not searching and a key was pressed, open the search box.
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if (!this.searching && this.search && (e.key !== "Backspace" || (e.key == "Backspace" && e.target.textContent.length > 1)) && (this.items == null || this.items.length < this.itemsMax)) {
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this.searching = true;
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this.showSearchResults = true;
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} else if (this.items != null && this.items.length >= this.itemsMax && e.key !== "Backspace") {
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//Don't allow input if we reached the max number of items.
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e.preventDefault();
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}
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//If we are searching and we have a on search function invoke it.
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if (this.searching && this.onSearch) {
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if (this.onSearchCallback) {
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clearTimeout(this.onSearchCallback);
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}
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this.onSearchCallback = setTimeout(() => this.onSearch(this, this.input.textContent.trim()), this.onSearchDelay);
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}
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})
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),
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new Popper()
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.property("show", this.searching)
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.child(
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new div()
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.class("d-flex flex-column justify-content-center p-2 shadow bg-white")
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.style("border-radius", "0.4em")
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.child(
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new LinearProgress().class("my-2").property("loading", this.searchLoading),
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new span(this.searchPlaceholder).class("mt-2").hide([this.searchResults, this.showSearchResults, this.searchLoading], (searchResults, showSearchResults, searchLoading) => {
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//Dont show the placeholder if we have search results, or if we are not showing search results.
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return (searchResults != null && searchResults.length > 0 && !searchLoading) || (!showSearchResults || searchLoading);
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}),
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new list(this.searchResults, item => {
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return new div(item.content).class("search-result p-2").onClick(() => this.searchResultClick(item));
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}).hide([this.showSearchResults, this.searchLoading], (showSearchResults, searchLoading) => !showSearchResults || searchLoading),
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this.searchFooter
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)
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),
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)
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}
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ready() {
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//Add a listener to the document click to blur our element.
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this.documentListener = (e) => this.onBlur(e);
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window.document.addEventListener("click", this.documentListener);
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}
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cleanup() {
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window.document.removeEventListener("click", this.documentListener);
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}
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onFocus() {
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if (!this.readOnly) {
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if (!this.editing) {
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this.editing = true;
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this.input.focus();
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this.input.textContent = " ";
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} else {
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this.input.focus();
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}
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}
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}
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onBlur(e) {
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//Only blur if we are editing and the target is not ourself or any of our children.
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if (this.editing) {
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if (e.target != this && !this.contains(e.target)) {
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if (this.stopEditingOnBlur) {
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this.editing = false;
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//Fire a change event if there was a change.
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if (this.changed) {
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this.changed = false;
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this.dispatchEvent(new Event("change"));
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}
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}
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this.searching = false;
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this.input.blur();
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this.input.innerHTML = "";
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}
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}
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}
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searchResultClick(item) {
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if (this.items == null) {
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this.items = [];
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}
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this.changed = true; //Make sure changed flag is set.
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this.items.push(item);
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this.searching = false;
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this.input.innerHTML = "";
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this.input.focus();
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}
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}
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class ChipListTemplate extends IgniteTemplate {
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constructor(...children) {
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super("mt-chip-list", children);
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}
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}
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IgniteHtml.register("mt-chip-list", ChipList);
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export {
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ChipListTemplate as ChipList
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} |