Rewrite as ES2015 class
This commit is contained in:
JC Brand
parent
33cd23c529
commit
ad73abbd12
@ -20,16 +20,45 @@
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const { _converse } = this;
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_converse.FILTER_CONTAINS = function (text, input) {
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return RegExp($.regExpEscape(input.trim()), "i").test(text);
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return RegExp(helpers.regExpEscape(input.trim()), "i").test(text);
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};
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_converse.FILTER_STARTSWITH = function (text, input) {
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return RegExp("^" + $.regExpEscape(input.trim()), "i").test(text);
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return RegExp("^" + helpers.regExpEscape(input.trim()), "i").test(text);
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};
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const _ac = function (el, o) {
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const me = this;
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const SORT_BYLENGTH = function (a, b) {
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if (a.length !== b.length) {
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return a.length - b.length;
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}
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return a < b? -1 : 1;
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};
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const REPLACE = (text) => (this.input.value = text.value);
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const ITEM = (text, input) => {
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input = input.trim();
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const element = document.createElement("li");
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element.setAttribute("aria-selected", "false");
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const regex = new RegExp("("+input+")", "ig");
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const parts = input ? text.split(regex) : [text];
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parts.forEach((txt) => {
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if (input && txt.match(regex)) {
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const match = document.createElement("mark");
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match.textContent = txt;
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element.appendChild(match);
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} else {
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element.appendChild(document.createTextNode(txt));
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}
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});
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return element;
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};
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class AutoComplete {
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constructor (el, o) {
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this.is_opened = false;
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if (u.hasClass('.suggestion-box', el)) {
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@ -37,55 +66,67 @@
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} else {
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this.container = el.querySelector('.suggestion-box');
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}
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this.input = $(this.container.querySelector('.suggestion-box__input'));
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this.input = this.container.querySelector('.suggestion-box__input');
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this.input.setAttribute("autocomplete", "off");
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this.input.setAttribute("aria-autocomplete", "list");
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this.ul = $(this.container.querySelector('.suggestion-box__results'));
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this.status = $(this.container.querySelector('.suggestion-box__additions'));
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this.ul = this.container.querySelector('.suggestion-box__results');
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this.status = this.container.querySelector('.suggestion-box__additions');
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o = o || {};
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configure(this, {
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_.assignIn(this, {
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'match_current_word': false, // Match only the current word, otherwise all input is matched
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'match_on_tab': false, // Whether matching should only start when tab's pressed
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'min_chars': 2,
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'max_items': 10,
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'auto_evaluate': true,
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'auto_first': false,
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'data': _ac.DATA,
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'filter': _ac.FILTER_CONTAINS,
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'sort': o.sort === false ? false : _ac.SORT_BYLENGTH,
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'item': _ac.ITEM,
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'replace': _ac.REPLACE
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'data': _.identity,
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'filter': _converse.FILTER_CONTAINS,
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'sort': o.sort === false ? false : SORT_BYLENGTH,
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'item': ITEM,
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'replace': REPLACE
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}, o);
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this.index = -1;
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const input = {
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"blur": this.close.bind(this, { reason: "blur" }),
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"keydown": function(evt) {
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const c = evt.keyCode;
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// If the dropdown `ul` is in view, then act on keydown for the following keys:
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// Enter / Esc / Up / Down
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if(me.opened) {
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if (c === _converse.keycodes.ENTER && me.selected) {
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evt.preventDefault();
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me.select();
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} else if (c === _converse.keycodes.ESCAPE) {
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me.close({ reason: "esc" });
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} else if (c === _converse.keycodes.UP_ARROW || c === _converse.keycodes.DOWN_ARROW) {
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evt.preventDefault();
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me[c === _converse.keycodes.UP_ARROW ? "previous" : "next"]();
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}
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}
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}
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"blur": this.close.bind(this, {'reason': "blur" }),
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"keydown": () => this.onKeyDown()
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}
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if (this.auto_evaluate) {
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input["input"] = this.evaluate.bind(this);
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}
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this.bindEvents(input)
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if (this.input.hasAttribute("list")) {
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this.list = "#" + this.input.getAttribute("list");
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this.input.removeAttribute("list");
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} else {
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this.list = this.input.getAttribute("data-list") || o.list || [];
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}
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}
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onKeyDown (evt) {
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const c = evt.keyCode;
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// If the dropdown `ul` is in view, then act on keydown for the following keys:
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// Enter / Esc / Up / Down
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if (this.opened) {
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if (c === _converse.keycodes.ENTER && this.selected) {
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evt.preventDefault();
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this.select();
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} else if (c === _converse.keycodes.ESCAPE) {
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this.close({ reason: "esc" });
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} else if (c === _converse.keycodes.UP_ARROW || c === _converse.keycodes.DOWN_ARROW) {
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evt.preventDefault();
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this[c === _converse.keycodes.UP_ARROW ? "previous" : "next"]();
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}
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}
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}
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bindEvents (input) {
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// Bind events
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this._events = {
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'input': input,
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@ -93,7 +134,7 @@
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"submit": this.close.bind(this, { reason: "submit" })
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},
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'ul': {
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"mousedown": function(evt) {
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"mousedown": (evt) => {
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let li = evt.target;
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if (li !== this) {
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while (li && !(/li/i).test(li.nodeName)) {
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@ -102,38 +143,24 @@
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if (li && evt.button === 0) { // Only select on left click
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evt.preventDefault();
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me.select(li, evt.target);
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this.select(li, evt.target);
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}
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}
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}
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}
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};
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$.bind(this.input, this._events.input);
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$.bind(this.input.form, this._events.form);
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$.bind(this.ul, this._events.ul);
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if (this.input.hasAttribute("list")) {
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this.list = "#" + this.input.getAttribute("list");
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this.input.removeAttribute("list");
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}
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else {
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this.list = this.input.getAttribute("data-list") || o.list || [];
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helpers.bind(this.input, this._events.input);
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helpers.bind(this.input.form, this._events.form);
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helpers.bind(this.ul, this._events.ul);
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}
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_ac.all.push(this);
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}
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_ac.prototype = {
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set list (list) {
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if (Array.isArray(list)) {
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if (Array.isArray(list) || typeof list === "function") {
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this._list = list;
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}
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else if (typeof list === "string" && _.includes(list, ",")) {
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} else if (typeof list === "string" && _.includes(list, ",")) {
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this._list = list.split(/\s*,\s*/);
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}
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else { // Element or CSS selector
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list = $(list);
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} else { // Element or CSS selector
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list = helpers.getElement(list);
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if (list && list.children) {
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const items = [];
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slice.apply(list.children).forEach(function (el) {
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@ -153,27 +180,26 @@
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if (document.activeElement === this.input) {
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this.evaluate();
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}
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},
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}
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get selected () {
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return this.index > -1;
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},
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}
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get opened () {
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return this.is_opened;
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},
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}
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close (o) {
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if (!this.opened) {
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return;
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}
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this.ul.setAttribute("hidden", "");
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this.is_opened = false;
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this.index = -1;
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$.fire(this.input, "suggestion-box-close", o || {});
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},
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helpers.fire(this.input, "suggestion-box-close", o || {});
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}
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open () {
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this.ul.removeAttribute("hidden");
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@ -183,13 +209,13 @@
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this.goto(0);
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}
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$.fire(this.input, "suggestion-box-open");
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},
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helpers.fire(this.input, "suggestion-box-open");
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}
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destroy () {
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//remove events from the input and its form
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$.unbind(this.input, this._events.input);
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$.unbind(this.input.form, this._events.form);
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helpers.unbind(this.input, this._events.input);
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helpers.unbind(this.input.form, this._events.form);
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//move the input out of the suggestion-box container and remove the container and its children
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const parentNode = this.container.parentNode;
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@ -200,26 +226,18 @@
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//remove autocomplete and aria-autocomplete attributes
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this.input.removeAttribute("autocomplete");
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this.input.removeAttribute("aria-autocomplete");
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//remove this awesomeplete instance from the global array of instances
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var indexOfAutoComplete = _ac.all.indexOf(this);
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if (indexOfAutoComplete !== -1) {
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_ac.all.splice(indexOfAutoComplete, 1);
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}
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},
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next () {
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var count = this.ul.children.length;
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const count = this.ul.children.length;
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this.goto(this.index < count - 1 ? this.index + 1 : (count ? 0 : -1) );
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},
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}
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previous () {
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var count = this.ul.children.length;
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var pos = this.index - 1;
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const count = this.ul.children.length,
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pos = this.index - 1;
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this.goto(this.selected && pos !== -1 ? pos : count - 1);
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},
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}
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// Should not be used, highlights specific item without any checks!
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goto (i) {
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@ -238,11 +256,11 @@
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// scroll to highlighted element in case parent's height is fixed
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this.ul.scrollTop = lis[i].offsetTop - this.ul.clientHeight + lis[i].clientHeight;
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$.fire(this.input, "suggestion-box-highlight", {
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helpers.fire(this.input, "suggestion-box-highlight", {
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text: this.suggestions[this.index]
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});
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}
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},
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}
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select (selected, origin) {
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if (selected) {
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@ -253,7 +271,7 @@
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if (selected) {
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const suggestion = this.suggestions[this.index],
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allowed = $.fire(this.input, "suggestion-box-select", {
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allowed = helpers.fire(this.input, "suggestion-box-select", {
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'text': suggestion,
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'origin': origin || selected
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});
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@ -265,7 +283,7 @@
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this.trigger("suggestion-box-selectcomplete", {'text': suggestion});
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}
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}
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},
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}
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keyPressed (ev) {
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if (_.includes([
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@ -284,7 +302,7 @@
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if (this.auto_completing) {
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this.evaluate();
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}
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},
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}
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evaluate (ev) {
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let value = this.input.value;
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@ -292,12 +310,14 @@
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value = u.getCurrentWord(this.input);
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}
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if (value.length >= this.min_chars && this._list.length > 0) {
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const list = typeof this._list === "function" ? this._list() : this._list;
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if (value.length >= this.min_chars && list.length > 0) {
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this.index = -1;
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// Populate list with options that match
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this.ul.innerHTML = "";
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this.suggestions = this._list
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this.suggestions = list
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.map(item => new Suggestion(this.data(item, value)))
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.filter(item => this.filter(item, value));
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@ -317,46 +337,11 @@
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this.auto_completing = false;
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}
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}
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};
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}
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// Make it an event emitter
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_.extend(_ac.prototype, Backbone.Events);
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_.extend(AutoComplete.prototype, Backbone.Events);
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// Static methods/properties
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_ac.all = [];
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_ac.SORT_BYLENGTH = function (a, b) {
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if (a.length !== b.length) {
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return a.length - b.length;
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}
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return a < b? -1 : 1;
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};
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_ac.ITEM = function (text, input) {
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input = input.trim();
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var element = document.createElement("li");
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element.setAttribute("aria-selected", "false");
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var regex = new RegExp("("+input+")", "ig");
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var parts = input ? text.split(regex) : [text];
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parts.forEach(function (txt) {
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if (input && txt.match(regex)) {
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var match = document.createElement("mark");
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match.textContent = txt;
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element.appendChild(match);
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} else {
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element.appendChild(document.createTextNode(txt));
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}
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});
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return element;
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};
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_ac.REPLACE = function (text) {
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this.input.value = text.value;
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};
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_ac.DATA = function (item/*, input*/) { return item; };
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// Private functions
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@ -377,43 +362,16 @@
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return "" + this.label;
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};
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function configure (instance, properties, o) {
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for (var i in properties) {
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if (!Object.prototype.hasOwnProperty.call(properties, i)) {
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continue;
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}
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const initial = properties[i],
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attr_value = instance.input.getAttribute("data-" + i.toLowerCase());
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if (typeof initial === "number") {
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instance[i] = parseInt(attr_value, 10);
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} else if (initial === false) { // Boolean options must be false by default anyway
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instance[i] = attr_value !== null;
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} else if (initial instanceof Function) {
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instance[i] = null;
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} else {
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instance[i] = attr_value;
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}
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if (!instance[i] && instance[i] !== 0) {
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instance[i] = (i in o)? o[i] : initial;
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}
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}
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}
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// Helpers
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var slice = Array.prototype.slice;
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function $(expr, con) {
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return typeof expr === "string"? (con || document).querySelector(expr) : expr || null;
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}
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const helpers = {
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function $$(expr, con) {
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return slice.call((con || document).querySelectorAll(expr));
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}
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getElement (expr, el) {
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return typeof expr === "string"? (el || document).querySelector(expr) : expr || null;
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},
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$.bind = function(element, o) {
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bind (element, o) {
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if (element) {
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for (var event in o) {
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if (!Object.prototype.hasOwnProperty.call(o, event)) {
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@ -423,9 +381,9 @@
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event.split(/\s+/).forEach(event => element.addEventListener(event, callback));
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}
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}
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};
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},
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$.unbind = function(element, o) {
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unbind (element, o) {
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if (element) {
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for (var event in o) {
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if (!Object.prototype.hasOwnProperty.call(o, event)) {
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@ -435,11 +393,10 @@
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event.split(/\s+/).forEach(event => element.removeEventListener(event, callback));
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}
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}
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};
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$.fire = function(target, type, properties) {
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var evt = document.createEvent("HTMLEvents");
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},
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fire (target, type, properties) {
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const evt = document.createEvent("HTMLEvents");
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evt.initEvent(type, true, true );
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for (var j in properties) {
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@ -448,18 +405,15 @@
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}
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evt[j] = properties[j];
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}
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return target.dispatchEvent(evt);
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};
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},
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$.regExpEscape = function (s) {
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regExpEscape (s) {
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return s.replace(/[-\\^$*+?.()|[\]{}]/g, "\\$&");
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};
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}
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}
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_ac.$ = $;
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_ac.$$ = $$;
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_converse.AutoComplete = _ac;
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_converse.AutoComplete = AutoComplete;
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}
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});
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}));
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Reference in New Issue
Block a user