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converse.js
Commit ad73abbd authored by JC Brand's avatar JC Brand
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Rewrite as ES2015 class

parent 33cd23c5
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src/converse-autocomplete.js
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...@@ -20,120 +20,147 @@ ...@@ -20,120 +20,147 @@
const { _converse } = this; const { _converse } = this;
_converse.FILTER_CONTAINS = function (text, input) { _converse.FILTER_CONTAINS = function (text, input) {
return RegExp($.regExpEscape(input.trim()), "i").test(text); return RegExp(helpers.regExpEscape(input.trim()), "i").test(text);
}; };
_converse.FILTER_STARTSWITH = function (text, input) { _converse.FILTER_STARTSWITH = function (text, input) {
return RegExp("^" + $.regExpEscape(input.trim()), "i").test(text); return RegExp("^" + helpers.regExpEscape(input.trim()), "i").test(text);
}; };
const _ac = function (el, o) { const SORT_BYLENGTH = function (a, b) {
const me = this; if (a.length !== b.length) {
return a.length - b.length;
}
return a < b? -1 : 1;
};
const REPLACE = (text) => (this.input.value = text.value);
const ITEM = (text, input) => {
input = input.trim();
const element = document.createElement("li");
element.setAttribute("aria-selected", "false");
const regex = new RegExp("("+input+")", "ig");
const parts = input ? text.split(regex) : [text];
parts.forEach((txt) => {
if (input && txt.match(regex)) {
const match = document.createElement("mark");
match.textContent = txt;
element.appendChild(match);
} else {
element.appendChild(document.createTextNode(txt));
}
});
return element;
};
class AutoComplete {
constructor (el, o) {
this.is_opened = false;
this.is_opened = false; if (u.hasClass('.suggestion-box', el)) {
this.container = el;
} else {
this.container = el.querySelector('.suggestion-box');
}
this.input = this.container.querySelector('.suggestion-box__input');
this.input.setAttribute("autocomplete", "off");
this.input.setAttribute("aria-autocomplete", "list");
this.ul = this.container.querySelector('.suggestion-box__results');
this.status = this.container.querySelector('.suggestion-box__additions');
o = o || {};
_.assignIn(this, {
'match_current_word': false, // Match only the current word, otherwise all input is matched
'match_on_tab': false, // Whether matching should only start when tab's pressed
'min_chars': 2,
'max_items': 10,
'auto_evaluate': true,
'auto_first': false,
'data': _.identity,
'filter': _converse.FILTER_CONTAINS,
'sort': o.sort === false ? false : SORT_BYLENGTH,
'item': ITEM,
'replace': REPLACE
}, o);
this.index = -1;
if (u.hasClass('.suggestion-box', el)) { const input = {
this.container = el; "blur": this.close.bind(this, {'reason': "blur" }),
} else { "keydown": () => this.onKeyDown()
this.container = el.querySelector('.suggestion-box'); }
if (this.auto_evaluate) {
input["input"] = this.evaluate.bind(this);
}
this.bindEvents(input)
if (this.input.hasAttribute("list")) {
this.list = "#" + this.input.getAttribute("list");
this.input.removeAttribute("list");
} else {
this.list = this.input.getAttribute("data-list") || o.list || [];
}
} }
this.input = $(this.container.querySelector('.suggestion-box__input'));
this.input.setAttribute("autocomplete", "off"); onKeyDown (evt) {
this.input.setAttribute("aria-autocomplete", "list"); const c = evt.keyCode;
// If the dropdown `ul` is in view, then act on keydown for the following keys:
this.ul = $(this.container.querySelector('.suggestion-box__results')); // Enter / Esc / Up / Down
this.status = $(this.container.querySelector('.suggestion-box__additions')); if (this.opened) {
if (c === _converse.keycodes.ENTER && this.selected) {
o = o || {}; evt.preventDefault();
this.select();
configure(this, { } else if (c === _converse.keycodes.ESCAPE) {
'match_current_word': false, // Match only the current word, otherwise all input is matched this.close({ reason: "esc" });
'match_on_tab': false, // Whether matching should only start when tab's pressed } else if (c === _converse.keycodes.UP_ARROW || c === _converse.keycodes.DOWN_ARROW) {
'min_chars': 2, evt.preventDefault();
'max_items': 10, this[c === _converse.keycodes.UP_ARROW ? "previous" : "next"]();
'auto_evaluate': true,
'auto_first': false,
'data': _ac.DATA,
'filter': _ac.FILTER_CONTAINS,
'sort': o.sort === false ? false : _ac.SORT_BYLENGTH,
'item': _ac.ITEM,
'replace': _ac.REPLACE
}, o);
this.index = -1;
const input = {
"blur": this.close.bind(this, { reason: "blur" }),
"keydown": function(evt) {
const c = evt.keyCode;
// If the dropdown `ul` is in view, then act on keydown for the following keys:
// Enter / Esc / Up / Down
if(me.opened) {
if (c === _converse.keycodes.ENTER && me.selected) {
evt.preventDefault();
me.select();
} else if (c === _converse.keycodes.ESCAPE) {
me.close({ reason: "esc" });
} else if (c === _converse.keycodes.UP_ARROW || c === _converse.keycodes.DOWN_ARROW) {
evt.preventDefault();
me[c === _converse.keycodes.UP_ARROW ? "previous" : "next"]();
}
} }
} }
} }
if (this.auto_evaluate) {
input["input"] = this.evaluate.bind(this);
}
// Bind events bindEvents (input) {
this._events = { // Bind events
'input': input, this._events = {
'form': { 'input': input,
"submit": this.close.bind(this, { reason: "submit" }) 'form': {
}, "submit": this.close.bind(this, { reason: "submit" })
'ul': { },
"mousedown": function(evt) { 'ul': {
let li = evt.target; "mousedown": (evt) => {
if (li !== this) { let li = evt.target;
while (li && !(/li/i).test(li.nodeName)) { if (li !== this) {
li = li.parentNode; while (li && !(/li/i).test(li.nodeName)) {
} li = li.parentNode;
}
if (li && evt.button === 0) { // Only select on left click if (li && evt.button === 0) { // Only select on left click
evt.preventDefault(); evt.preventDefault();
me.select(li, evt.target); this.select(li, evt.target);
}
} }
} }
} }
} };
}; helpers.bind(this.input, this._events.input);
helpers.bind(this.input.form, this._events.form);
$.bind(this.input, this._events.input); helpers.bind(this.ul, this._events.ul);
$.bind(this.input.form, this._events.form);
$.bind(this.ul, this._events.ul);
if (this.input.hasAttribute("list")) {
this.list = "#" + this.input.getAttribute("list");
this.input.removeAttribute("list");
}
else {
this.list = this.input.getAttribute("data-list") || o.list || [];
} }
_ac.all.push(this);
}
_ac.prototype = {
set list (list) { set list (list) {
if (Array.isArray(list)) { if (Array.isArray(list) || typeof list === "function") {
this._list = list; this._list = list;
} } else if (typeof list === "string" && _.includes(list, ",")) {
else if (typeof list === "string" && _.includes(list, ",")) {
this._list = list.split(/\s*,\s*/); this._list = list.split(/\s*,\s*/);
} } else { // Element or CSS selector
else { // Element or CSS selector list = helpers.getElement(list);
list = $(list);
if (list && list.children) { if (list && list.children) {
const items = []; const items = [];
slice.apply(list.children).forEach(function (el) { slice.apply(list.children).forEach(function (el) {
...@@ -153,27 +180,26 @@ ...@@ -153,27 +180,26 @@
if (document.activeElement === this.input) { if (document.activeElement === this.input) {
this.evaluate(); this.evaluate();
} }
}, }
get selected() { get selected () {
return this.index > -1; return this.index > -1;
}, }
get opened() { get opened () {
return this.is_opened; return this.is_opened;
}, }
close (o) { close (o) {
if (!this.opened) { if (!this.opened) {
return; return;
} }
this.ul.setAttribute("hidden", ""); this.ul.setAttribute("hidden", "");
this.is_opened = false; this.is_opened = false;
this.index = -1; this.index = -1;
$.fire(this.input, "suggestion-box-close", o || {}); helpers.fire(this.input, "suggestion-box-close", o || {});
}, }
open () { open () {
this.ul.removeAttribute("hidden"); this.ul.removeAttribute("hidden");
...@@ -183,13 +209,13 @@ ...@@ -183,13 +209,13 @@
this.goto(0); this.goto(0);
} }
$.fire(this.input, "suggestion-box-open"); helpers.fire(this.input, "suggestion-box-open");
}, }
destroy () { destroy () {
//remove events from the input and its form //remove events from the input and its form
$.unbind(this.input, this._events.input); helpers.unbind(this.input, this._events.input);
$.unbind(this.input.form, this._events.form); helpers.unbind(this.input.form, this._events.form);
//move the input out of the suggestion-box container and remove the container and its children //move the input out of the suggestion-box container and remove the container and its children
const parentNode = this.container.parentNode; const parentNode = this.container.parentNode;
...@@ -200,26 +226,18 @@ ...@@ -200,26 +226,18 @@
//remove autocomplete and aria-autocomplete attributes //remove autocomplete and aria-autocomplete attributes
this.input.removeAttribute("autocomplete"); this.input.removeAttribute("autocomplete");
this.input.removeAttribute("aria-autocomplete"); this.input.removeAttribute("aria-autocomplete");
}
//remove this awesomeplete instance from the global array of instances
var indexOfAutoComplete = _ac.all.indexOf(this);
if (indexOfAutoComplete !== -1) {
_ac.all.splice(indexOfAutoComplete, 1);
}
},
next () { next () {
var count = this.ul.children.length; const count = this.ul.children.length;
this.goto(this.index < count - 1 ? this.index + 1 : (count ? 0 : -1) ); this.goto(this.index < count - 1 ? this.index + 1 : (count ? 0 : -1) );
}, }
previous () { previous () {
var count = this.ul.children.length; const count = this.ul.children.length,
var pos = this.index - 1; pos = this.index - 1;
this.goto(this.selected && pos !== -1 ? pos : count - 1); this.goto(this.selected && pos !== -1 ? pos : count - 1);
}, }
// Should not be used, highlights specific item without any checks! // Should not be used, highlights specific item without any checks!
goto (i) { goto (i) {
...@@ -238,11 +256,11 @@ ...@@ -238,11 +256,11 @@
// scroll to highlighted element in case parent's height is fixed // scroll to highlighted element in case parent's height is fixed
this.ul.scrollTop = lis[i].offsetTop - this.ul.clientHeight + lis[i].clientHeight; this.ul.scrollTop = lis[i].offsetTop - this.ul.clientHeight + lis[i].clientHeight;
$.fire(this.input, "suggestion-box-highlight", { helpers.fire(this.input, "suggestion-box-highlight", {
text: this.suggestions[this.index] text: this.suggestions[this.index]
}); });
} }
}, }
select (selected, origin) { select (selected, origin) {
if (selected) { if (selected) {
...@@ -253,7 +271,7 @@ ...@@ -253,7 +271,7 @@
if (selected) { if (selected) {
const suggestion = this.suggestions[this.index], const suggestion = this.suggestions[this.index],
allowed = $.fire(this.input, "suggestion-box-select", { allowed = helpers.fire(this.input, "suggestion-box-select", {
'text': suggestion, 'text': suggestion,
'origin': origin || selected 'origin': origin || selected
}); });
...@@ -265,7 +283,7 @@ ...@@ -265,7 +283,7 @@
this.trigger("suggestion-box-selectcomplete", {'text': suggestion}); this.trigger("suggestion-box-selectcomplete", {'text': suggestion});
} }
} }
}, }
keyPressed (ev) { keyPressed (ev) {
if (_.includes([ if (_.includes([
...@@ -284,7 +302,7 @@ ...@@ -284,7 +302,7 @@
if (this.auto_completing) { if (this.auto_completing) {
this.evaluate(); this.evaluate();
} }
}, }
evaluate (ev) { evaluate (ev) {
let value = this.input.value; let value = this.input.value;
...@@ -292,12 +310,14 @@ ...@@ -292,12 +310,14 @@
value = u.getCurrentWord(this.input); value = u.getCurrentWord(this.input);
} }
if (value.length >= this.min_chars && this._list.length > 0) { const list = typeof this._list === "function" ? this._list() : this._list;
if (value.length >= this.min_chars && list.length > 0) {
this.index = -1; this.index = -1;
// Populate list with options that match // Populate list with options that match
this.ul.innerHTML = ""; this.ul.innerHTML = "";
this.suggestions = this._list this.suggestions = list
.map(item => new Suggestion(this.data(item, value))) .map(item => new Suggestion(this.data(item, value)))
.filter(item => this.filter(item, value)); .filter(item => this.filter(item, value));
...@@ -317,46 +337,11 @@ ...@@ -317,46 +337,11 @@
this.auto_completing = false; this.auto_completing = false;
} }
} }
}; }
// Make it an event emitter // Make it an event emitter
_.extend(_ac.prototype, Backbone.Events); _.extend(AutoComplete.prototype, Backbone.Events);
// Static methods/properties
_ac.all = [];
_ac.SORT_BYLENGTH = function (a, b) {
if (a.length !== b.length) {
return a.length - b.length;
}
return a < b? -1 : 1;
};
_ac.ITEM = function (text, input) {
input = input.trim();
var element = document.createElement("li");
element.setAttribute("aria-selected", "false");
var regex = new RegExp("("+input+")", "ig");
var parts = input ? text.split(regex) : [text];
parts.forEach(function (txt) {
if (input && txt.match(regex)) {
var match = document.createElement("mark");
match.textContent = txt;
element.appendChild(match);
} else {
element.appendChild(document.createTextNode(txt));
}
});
return element;
};
_ac.REPLACE = function (text) {
this.input.value = text.value;
};
_ac.DATA = function (item/*, input*/) { return item; };
// Private functions // Private functions
...@@ -377,89 +362,58 @@ ...@@ -377,89 +362,58 @@
return "" + this.label; return "" + this.label;
}; };
function configure (instance, properties, o) {
for (var i in properties) {
if (!Object.prototype.hasOwnProperty.call(properties, i)) {
continue;
}
const initial = properties[i],
attr_value = instance.input.getAttribute("data-" + i.toLowerCase());
if (typeof initial === "number") {
instance[i] = parseInt(attr_value, 10);
} else if (initial === false) { // Boolean options must be false by default anyway
instance[i] = attr_value !== null;
} else if (initial instanceof Function) {
instance[i] = null;
} else {
instance[i] = attr_value;
}
if (!instance[i] && instance[i] !== 0) {
instance[i] = (i in o)? o[i] : initial;
}
}
}
// Helpers // Helpers
var slice = Array.prototype.slice; var slice = Array.prototype.slice;
function $(expr, con) { const helpers = {
return typeof expr === "string"? (con || document).querySelector(expr) : expr || null;
}
function $$(expr, con) { getElement (expr, el) {
return slice.call((con || document).querySelectorAll(expr)); return typeof expr === "string"? (el || document).querySelector(expr) : expr || null;
} },
$.bind = function(element, o) { bind (element, o) {
if (element) { if (element) {
for (var event in o) { for (var event in o) {
if (!Object.prototype.hasOwnProperty.call(o, event)) { if (!Object.prototype.hasOwnProperty.call(o, event)) {
continue; continue;
}
const callback = o[event];
event.split(/\s+/).forEach(event => element.addEventListener(event, callback));
} }
const callback = o[event];
event.split(/\s+/).forEach(event => element.addEventListener(event, callback));
} }
} },
};
$.unbind = function(element, o) { unbind (element, o) {
if (element) { if (element) {
for (var event in o) { for (var event in o) {
if (!Object.prototype.hasOwnProperty.call(o, event)) { if (!Object.prototype.hasOwnProperty.call(o, event)) {
continue; continue;
}
const callback = o[event];
event.split(/\s+/).forEach(event => element.removeEventListener(event, callback));
} }
const callback = o[event];
event.split(/\s+/).forEach(event => element.removeEventListener(event, callback));
} }
} },
};
$.fire = function(target, type, properties) {
var evt = document.createEvent("HTMLEvents");
evt.initEvent(type, true, true ); fire (target, type, properties) {
const evt = document.createEvent("HTMLEvents");
evt.initEvent(type, true, true );
for (var j in properties) { for (var j in properties) {
if (!Object.prototype.hasOwnProperty.call(properties, j)) { if (!Object.prototype.hasOwnProperty.call(properties, j)) {
continue; continue;
}
evt[j] = properties[j];
} }
evt[j] = properties[j]; return target.dispatchEvent(evt);
} },
return target.dispatchEvent(evt);
};
$.regExpEscape = function (s) {
return s.replace(/[-\\^$*+?.()|[\]{}]/g, "\\$&");
};
_ac.$ = $; regExpEscape (s) {
_ac.$$ = $$; return s.replace(/[-\\^$*+?.()|[\]{}]/g, "\\$&");
}
}
_converse.AutoComplete = _ac; _converse.AutoComplete = AutoComplete;
} }
}); });
})); }));
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