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tagify.js
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tagify.js
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import { sameStr, removeCollectionProp, isObject, parseHTML, removeTextChildNodes, escapeHTML, extend } from './parts/helpers'
import dropdownMethods from './parts/dropdown'
import DEFAULTS from './parts/defaults'
import templates from './parts/templates'
import EventDispatcher from './parts/EventDispatcher'
import events, { triggerChangeEvent } from './parts/events'
/**
* @constructor
* @param {Object} input DOM element
* @param {Object} settings settings object
*/
function Tagify( input, settings ){
if( !input ){
console.warn('Tagify: ', 'input element not found', input)
return this
}
if( input.previousElementSibling && input.previousElementSibling.classList.contains('tagify') ){
console.warn('Tagify: ', 'input element is already Tagified', input)
return this
}
extend(this, EventDispatcher(this))
this.isFirefox = typeof InstallTrigger !== 'undefined'
this.isIE = window.document.documentMode; // https://developer.mozilla.org/en-US/docs/Web/API/Document/compatMode#Browser_compatibility
this.applySettings(input, settings||{})
this.state = {
inputText: '',
editing : false,
actions : {}, // UI actions for state-locking
mixMode : {},
dropdown: {},
flaggedTags: {} // in mix-mode, when a string is detetced as potential tag, and the user has chocen to close the suggestions dropdown, keep the record of the tasg here
}
this.value = [] // tags' data
// events' callbacks references will be stores here, so events could be unbinded
this.listeners = {}
this.DOM = {} // Store all relevant DOM elements in an Object
this.build(input)
this.getCSSVars()
this.loadOriginalValues()
this.events.customBinding.call(this);
this.events.binding.call(this)
input.autofocus && this.DOM.input.focus()
}
Tagify.prototype = {
dropdown: dropdownMethods,
TEXTS : {
empty : "empty",
exceed : "number of tags exceeded",
pattern : "pattern mismatch",
duplicate : "already exists",
notAllowed : "not allowed"
},
customEventsList : ['change', 'add', 'remove', 'invalid', 'input', 'click', 'keydown', 'focus', 'blur', 'edit:input', 'edit:updated', 'edit:start', 'edit:keydown', 'dropdown:show', 'dropdown:hide', 'dropdown:select', 'dropdown:updated', 'dropdown:noMatch'],
trim(text){
return this.settings.trim && text && typeof text == "string" ? text.trim() : text
},
// expose this handy utility function
parseHTML,
templates,
parseTemplate(template, data){
template = this.settings.templates[template] || template;
return this.parseHTML( template.apply(this, data) )
},
applySettings( input, settings ){
DEFAULTS.templates = this.templates
var _s = this.settings = extend({}, DEFAULTS, settings)
_s.readonly = input.hasAttribute('readonly') // if "readonly" do not include an "input" element inside the Tags component
_s.placeholder = input.getAttribute('placeholder') || _s.placeholder || ""
_s.required = input.hasAttribute('required')
for( let name in _s.classNames )
Object.defineProperty(_s.classNames, name + "Selector" , {
get(){ return "."+this[name].split(" ").join(".") }
})
if( this.isIE )
_s.autoComplete = false; // IE goes crazy if this isn't false
["whitelist", "blacklist"].forEach(name => {
var attrVal = input.getAttribute('data-' + name)
if( attrVal ){
attrVal = attrVal.split(_s.delimiters)
if( attrVal instanceof Array )
_s[name] = attrVal
}
})
// backward-compatibility for old version of "autoComplete" setting:
if( "autoComplete" in settings && !isObject(settings.autoComplete) ){
_s.autoComplete = DEFAULTS.autoComplete
_s.autoComplete.enabled = settings.autoComplete
}
if( _s.mode == 'mix' ){
_s.autoComplete.rightKey = true
_s.delimiters = settings.delimiters || null // default dlimiters in mix-mode must be NULL
// needed for "filterListItems". This assumes the user might have forgotten to manually
// define the same term in "dropdown.searchKeys" as defined in "tagTextProp" setting, so
// by automatically adding it, tagify is "helping" out, guessing the intesntions of the developer.
if( _s.tagTextProp && !_s.dropdown.searchKeys.includes(_s.tagTextProp) )
_s.dropdown.searchKeys.push(_s.tagTextProp)
}
if( input.pattern )
try { _s.pattern = new RegExp(input.pattern) }
catch(e){}
// Convert the "delimiters" setting into a REGEX object
if( this.settings.delimiters ){
try { _s.delimiters = new RegExp(this.settings.delimiters, "g") }
catch(e){}
}
// make sure the dropdown will be shown on "focus" and not only after typing something (in "select" mode)
if( _s.mode == 'select' )
_s.dropdown.enabled = 0
_s.dropdown.appendTarget = settings.dropdown && settings.dropdown.appendTarget
? settings.dropdown.appendTarget
: document.body
},
/**
* Returns a string of HTML element attributes
* @param {Object} data [Tag data]
*/
getAttributes( data ){
// only items which are objects have properties which can be used as attributes
if( Object.prototype.toString.call(data) != "[object Object]" )
return '';
var keys = Object.keys(data),
s = "", propName, i;
for( i=keys.length; i--; ){
propName = keys[i];
if( propName != 'class' && data.hasOwnProperty(propName) && data[propName] !== undefined )
s += " " + propName + (data[propName] !== undefined ? `="${data[propName]}"` : "");
}
return s;
},
setStateSelection(){
var selection = window.getSelection()
// save last selection place to be able to inject anything from outside to that specific place
var sel = {
anchorOffset: selection.anchorOffset,
anchorNode : selection.anchorNode,
range : selection.getRangeAt && selection.rangeCount && selection.getRangeAt(0)
}
this.state.selection = sel
return sel
},
/**
* Get the caret position relative to the viewport
* https://stackoverflow.com/q/58985076/104380
*
* @returns {object} left, top distance in pixels
*/
getCaretGlobalPosition(){
const sel = document.getSelection()
if( sel.rangeCount ){
const r = sel.getRangeAt(0)
const node = r.startContainer
const offset = r.startOffset
let rect, r2;
if (offset > 0) {
r2 = document.createRange()
r2.setStart(node, offset - 1)
r2.setEnd(node, offset)
rect = r2.getBoundingClientRect()
return {left:rect.right, top:rect.top, bottom:rect.bottom}
}
if( node.getBoundingClientRect )
return node.getBoundingClientRect()
}
return {left:-9999, top:-9999}
},
/**
* Get specific CSS variables which are relevant to this script and parse them as needed.
* The result is saved on the instance in "this.CSSVars"
*/
getCSSVars(){
var compStyle = getComputedStyle(this.DOM.scope, null)
const getProp = name => compStyle.getPropertyValue('--'+name)
function seprateUnitFromValue(a){
if( !a ) return {}
a = a.trim().split(' ')[0]
var unit = a.split(/\d+/g).filter(n=>n).pop().trim(),
value = +a.split(unit).filter(n=>n)[0].trim()
return {value, unit}
}
this.CSSVars = {
tagHideTransition: (({value, unit}) => unit=='s' ? value * 1000 : value)(seprateUnitFromValue(getProp('tag-hide-transition')))
}
},
/**
* builds the HTML of this component
* @param {Object} input [DOM element which would be "transformed" into "Tags"]
*/
build( input ){
var DOM = this.DOM;
if( this.settings.mixMode.integrated ){
DOM.originalInput = null;
DOM.scope = input;
DOM.input = input;
}
else {
DOM.originalInput = input
DOM.scope = this.parseTemplate('wrapper', [input, this.settings])
DOM.input = DOM.scope.querySelector(this.settings.classNames.inputSelector)
input.parentNode.insertBefore(DOM.scope, input)
}
if( this.settings.dropdown.enabled >= 0 )
this.dropdown.init.call(this)
},
/**
* revert any changes made by this component
*/
destroy(){
this.DOM.scope.parentNode.removeChild(this.DOM.scope)
this.dropdown.hide.call(this, true)
clearTimeout(this.dropdownHide__bindEventsTimeout)
},
/**
* if the original input had any values, add them as tags
*/
loadOriginalValues( value ){
var lastChild,
_s = this.settings;
value = value || (_s.mixMode.integrated
? this.DOM.input.textContent
: this.DOM.originalInput.value)
if( value ){
this.removeAllTags({ withoutChangeEvent:true })
if( _s.mode == 'mix' ){
this.parseMixTags(value.trim())
lastChild = this.DOM.input.lastChild;
if( !lastChild || lastChild.tagName != 'BR' )
this.DOM.input.insertAdjacentHTML('beforeend', '<br>')
}
else{
try{
if( JSON.parse(value) instanceof Array )
value = JSON.parse(value)
}
catch(err){}
this.addTags(value).forEach(tag => tag && tag.classList.add(_s.classNames.tagNoAnimation))
}
}
else
this.postUpdate()
this.state.lastOriginalValueReported = _s.mixMode.integrated ? '' : this.DOM.originalInput.value
this.state.loadedOriginalValues = true
},
cloneEvent(e){
var clonedEvent = {}
for( var v in e )
clonedEvent[v] = e[v]
return clonedEvent
},
/**
* Toogle global loading state on/off
* Useful when fetching async whitelist while user is typing
* @param {Boolean} isLoading
*/
loading( isLoading ){
this.state.isLoading = isLoading
// IE11 doesn't support toggle with second parameter
this.DOM.scope.classList[isLoading?"add":"remove"](this.settings.classNames.scopeLoading)
return this
},
/**
* Toogle specieif tag loading state on/off
* @param {Boolean} isLoading
*/
tagLoading( tagElm, isLoading ){
if( tagElm )
// IE11 doesn't support toggle with second parameter
tagElm.classList[isLoading?"add":"remove"](this.settings.classNames.tagLoading)
return this
},
/**
* Toggles class on the main tagify container ("scope")
* @param {String} className
* @param {Boolean} force
*/
toggleClass( className, force ){
if( typeof className == 'string' )
this.DOM.scope.classList.toggle(className, force)
},
toggleFocusClass( force ){
this.toggleClass(this.settings.classNames.focus, !!force)
},
triggerChangeEvent,
events,
fixFirefoxLastTagNoCaret(){
return // seems to be fixed in newer version of FF, so retiring below code (for now)
var inputElm = this.DOM.input
if( this.isFirefox && inputElm.childNodes.length && inputElm.lastChild.nodeType == 1 ){
inputElm.appendChild(document.createTextNode("\u200b"))
this.setRangeAtStartEnd(true)
return true
}
},
placeCaretAfterNode( node ){
if( !node || !node.parentNode ) return
var nextSibling = node.nextSibling,
sel = window.getSelection(),
range = sel.getRangeAt(0);
if (sel.rangeCount) {
range.setStartBefore(nextSibling || node);
range.setEndBefore(nextSibling || node);
sel.removeAllRanges();
sel.addRange(range);
}
},
insertAfterTag( tagElm, newNode ){
newNode = newNode || this.settings.mixMode.insertAfterTag;
if( !tagElm || !tagElm.parentNode || !newNode ) return
newNode = typeof newNode == 'string'
? document.createTextNode(newNode)
: newNode
tagElm.parentNode.insertBefore(newNode, tagElm.nextSibling)
return newNode
},
/**
* Enters a tag into "edit" mode
* @param {Node} tagElm the tag element to edit. if nothing specified, use last last
*/
editTag( tagElm, opts ){
tagElm = tagElm || this.getLastTag()
opts = opts || {}
this.dropdown.hide.call(this)
var _s = this.settings;
function getEditableElm(){
return tagElm.querySelector(_s.classNames.tagTextSelector)
}
var editableElm = getEditableElm(),
tagIdx = this.getNodeIndex(tagElm),
tagData = this.tagData(tagElm),
_CB = this.events.callbacks,
that = this,
isValid = true,
delayed_onEditTagBlur = function(){
setTimeout(() => _CB.onEditTagBlur.call(that, getEditableElm()))
}
if( !editableElm ){
console.warn('Cannot find element in Tag template: .', _s.classNames.tagTextSelector);
return;
}
if( tagData instanceof Object && "editable" in tagData && !tagData.editable )
return
editableElm.setAttribute('contenteditable', true)
tagElm.classList.add( _s.classNames.tagEditing )
// cache the original data, on the DOM node, before any modification ocurs, for possible revert
this.tagData(tagElm, {
__originalData: extend({}, tagData),
__originalHTML: tagElm.innerHTML
})
editableElm.addEventListener('focus', _CB.onEditTagFocus.bind(this, tagElm))
editableElm.addEventListener('blur', delayed_onEditTagBlur)
editableElm.addEventListener('input', _CB.onEditTagInput.bind(this, editableElm))
editableElm.addEventListener('keydown', e => _CB.onEditTagkeydown.call(this, e, tagElm))
editableElm.focus()
this.setRangeAtStartEnd(false, editableElm)
if( !opts.skipValidation )
isValid = this.editTagToggleValidity(tagElm, tagData.value)
editableElm.originalIsValid = isValid
this.trigger("edit:start", { tag:tagElm, index:tagIdx, data:tagData, isValid })
return this
},
editTagToggleValidity( tagElm, value ){
var tagData = this.tagData(tagElm),
toggleState;
if( !tagData ){
console.warn("tag has no data: ", tagElm, tagData)
return;
}
toggleState = !!(tagData.__isValid && tagData.__isValid != true);
//this.validateTag(tagData);
tagElm.classList.toggle(this.settings.classNames.tagInvalid, toggleState)
return tagData.__isValid
},
onEditTagDone(tagElm, tagData){
tagElm = tagElm || this.state.editing.scope
tagData = tagData || {}
var eventData = { tag:tagElm, index:this.getNodeIndex(tagElm), previousData:this.tagData(tagElm), data:tagData };
this.trigger("edit:beforeUpdate", eventData)
this.state.editing = false;
delete tagData.__originalData
delete tagData.__originalHTML
if( tagElm && tagData[this.settings.tagTextProp] ){
this.editTagToggleValidity(tagElm)
this.replaceTag(tagElm, tagData)
}
else if(tagElm)
this.removeTags(tagElm)
this.trigger("edit:updated", eventData)
this.dropdown.hide.call(this)
// check if any of the current tags which might have been marked as "duplicate" should be now un-marked
if( this.settings.keepInvalidTags )
this.reCheckInvalidTags()
},
/**
* Replaces an exisitng tag with a new one. Used for updating a tag's data
* @param {Object} tagElm [DOM node to replace]
* @param {Object} tagData [data to create new tag from]
*/
replaceTag(tagElm, tagData){
if( !tagData || !tagData.value )
tagData = tagElm.__tagifyTagData
// if tag is invalid, make the according changes in the newly created element
if( tagData.__isValid && tagData.__isValid != true )
extend( tagData, this.getInvalidTagAttrs(tagData, tagData.__isValid) )
var newTag = this.createTagElem(tagData)
// update DOM
tagElm.parentNode.replaceChild(newTag, tagElm)
this.updateValueByDOMTags()
},
/**
* update "value" (Array of Objects) by traversing all valid tags
*/
updateValueByDOMTags(){
this.value.length = 0;
[].forEach.call(this.getTagElms(), node => {
if( node.classList.contains(this.settings.classNames.tagNotAllowed.split(' ')[0]) ) return
this.value.push( this.tagData(node) )
})
this.update()
},
/** https://stackoverflow.com/a/59156872/104380
* @param {Boolean} start indicating where to place it (start or end of the node)
* @param {Object} node DOM node to place the caret at
*/
setRangeAtStartEnd( start, node ){
start = typeof start == 'number' ? start : !!start
node = node || this.DOM.input;
node = node.lastChild || node;
var sel = document.getSelection()
try{
if( sel.rangeCount >= 1 ){
['Start', 'End'].forEach(pos =>
sel.getRangeAt(0)["set" + pos](node, start ? start : node.length)
)
}
} catch(err){
console.warn("Tagify: ", err)
}
},
/**
* injects nodes/text at caret position, which is saved on the "state" when "blur" event gets triggered
* @param {Node} injectedNode [the node to inject at the caret position]
* @param {Object} selection [optional range Object. must have "anchorNode" & "anchorOffset"]
*/
injectAtCaret( injectedNode, range ){
range = range || this.state.selection.range
if( !range ) return;
if( typeof injectedNode == 'string' )
injectedNode = document.createTextNode(injectedNode);
range.deleteContents()
range.insertNode(injectedNode)
this.setRangeAtStartEnd(false, injectedNode)
this.updateValueByDOMTags() // updates internal "this.value"
this.update() // updates original input/textarea
return this
},
/**
* input bridge for accessing & setting
* @type {Object}
*/
input : {
set( s = '', updateDOM = true ){
var hideDropdown = this.settings.dropdown.closeOnSelect
this.state.inputText = s
if( updateDOM )
this.DOM.input.innerHTML = s;
if( !s && hideDropdown )
this.dropdown.hide.bind(this)
this.input.autocomplete.suggest.call(this);
this.input.validate.call(this);
},
/**
* Marks the tagify's input as "invalid" if the value did not pass "validateTag()"
*/
validate(){
var isValid = !this.state.inputText || this.validateTag({value:this.state.inputText}) === true;
this.DOM.input.classList.toggle(this.settings.classNames.inputInvalid, !isValid)
return isValid
},
// remove any child DOM elements that aren't of type TEXT (like <br>)
normalize( node ){
var clone = node || this.DOM.input, //.cloneNode(true),
v = [];
// when a text was pasted in FF, the "this.DOM.input" element will have <br> but no newline symbols (\n), and this will
// result in tags not being properly created if one wishes to create a separate tag per newline.
clone.childNodes.forEach(n => n.nodeType==3 && v.push(n.nodeValue))
v = v.join("\n")
try{
// "delimiters" might be of a non-regex value, where this will fail ("Tags With Properties" example in demo page):
v = v.replace(/(?:\r\n|\r|\n)/g, this.settings.delimiters.source.charAt(0))
}
catch(err){}
v = v.replace(/\s/g, ' ') // replace NBSPs with spaces characters
if( this.settings.trim )
v = v.replace(/^\s+/, '') // trimLeft
return v
},
/**
* suggest the rest of the input's value (via CSS "::after" using "content:attr(...)")
* @param {String} s [description]
*/
autocomplete : {
suggest( data ){
if( !this.settings.autoComplete.enabled ) return;
data = data || {}
if( typeof data == 'string' )
data = {value:data}
var suggestedText = data.value ? ''+data.value : '',
suggestionStart = suggestedText.substr(0, this.state.inputText.length).toLowerCase(),
suggestionTrimmed = suggestedText.substring(this.state.inputText.length);
if( !suggestedText || !this.state.inputText || suggestionStart != this.state.inputText.toLowerCase() ){
this.DOM.input.removeAttribute("data-suggest");
delete this.state.inputSuggestion
}
else{
this.DOM.input.setAttribute("data-suggest", suggestionTrimmed);
this.state.inputSuggestion = data
}
},
/**
* sets the suggested text as the input's value & cleanup the suggestion autocomplete.
* @param {String} s [text]
*/
set( s ){
var dataSuggest = this.DOM.input.getAttribute('data-suggest'),
suggestion = s || (dataSuggest ? this.state.inputText + dataSuggest : null);
if( suggestion ){
if( this.settings.mode == 'mix' ){
this.replaceTextWithNode( document.createTextNode(this.state.tag.prefix + suggestion) )
}
else{
this.input.set.call(this, suggestion);
this.setRangeAtStartEnd()
}
this.input.autocomplete.suggest.call(this);
this.dropdown.hide.call(this);
return true;
}
return false;
}
}
},
/**
* returns the index of the the tagData within the "this.value" array collection.
* since values should be unique, it is suffice to only search by "value" property
* @param {Object} tagData
*/
getTagIdx( tagData ){
return this.value.findIndex(item => item.value == tagData.value )
},
getNodeIndex( node ){
var index = 0;
if( node )
while( (node = node.previousElementSibling) )
index++;
return index;
},
getTagElms( ...classess ){
var classname = '.' + [...this.settings.classNames.tag.split(' '), ...classess].join('.')
return [].slice.call(this.DOM.scope.querySelectorAll(classname)) // convert nodeList to Array - https://stackoverflow.com/a/3199627/104380
},
/**
* gets the last non-readonly, not-in-the-proccess-of-removal tag
*/
getLastTag(){
var lastTag = this.DOM.scope.querySelectorAll(`${this.settings.classNames.tagSelector}:not(.${this.settings.classNames.tagHide}):not([readonly])`);
return lastTag[lastTag.length - 1];
},
/** Setter/Getter
* Each tag DOM node contains a custom property called "__tagifyTagData" which hosts its data
* @param {Node} tagElm
* @param {Object} data
*/
tagData(tagElm, data, override){
if( !tagElm ){
console.warn("tag elment doesn't exist",tagElm, data)
return data
}
if( data )
tagElm.__tagifyTagData = override
? data
: extend({}, tagElm.__tagifyTagData || {}, data)
return tagElm.__tagifyTagData
},
/**
* Searches if any tag with a certain value already exis
* @param {String/Object} v [text value / tag data object]
* @return {Boolean}
*/
isTagDuplicate( value, caseSensitive ){
var duplications,
_s = this.settings;
// duplications are irrelevant for this scenario
if( _s.mode == 'select' )
return false
duplications = this.value.reduce((acc, item) =>
sameStr( this.trim(""+value), item.value, caseSensitive || _s.dropdown.caseSensitive )
? acc+1
: acc
, 0)
return duplications
},
getTagIndexByValue( value ){
var indices = [];
this.getTagElms().forEach((tagElm, i) => {
if( sameStr( this.trim(tagElm.textContent), value, this.settings.dropdown.caseSensitive ) )
indices.push(i)
})
return indices;
},
getTagElmByValue( value ){
var tagIdx = this.getTagIndexByValue(value)[0]
return this.getTagElms()[tagIdx]
},
/**
* Temporarily marks a tag element (by value or Node argument)
* @param {Object} tagElm [a specific "tag" element to compare to the other tag elements siblings]
*/
flashTag( tagElm ){
if( tagElm ){
tagElm.classList.add(this.settings.classNames.tagFlash)
setTimeout(() => { tagElm.classList.remove(this.settings.classNames.tagFlash) }, 100)
}
},
/**
* checks if text is in the blacklist
*/
isTagBlacklisted( v ){
v = this.trim(v.toLowerCase());
return this.settings.blacklist.filter(x => (""+x).toLowerCase() == v).length;
},
/**
* checks if text is in the whitelist
*/
isTagWhitelisted( v ){
return !!this.getWhitelistItem(v)
/*
return this.settings.whitelist.some(item =>
typeof v == 'string'
? sameStr(this.trim(v), (item.value || item))
: sameStr(JSON.stringify(item), JSON.stringify(v))
)
*/
},
/**
* Returns the first whitelist item matched, by value (if match found)
* @param {String} value [text to match by]
*/
getWhitelistItem( value, prop, whitelist ){
var result,
prop = prop || 'value',
_s = this.settings,
whitelist = whitelist || _s.whitelist;
whitelist.some(_wi => {
var _wiv = typeof _wi == 'string' ? _wi : (_wi[prop] || _wi.value),
isSameStr = sameStr(_wiv, value, _s.dropdown.caseSensitive, _s.trim)
if( isSameStr ){
result = typeof _wi == 'string' ? {value:_wi} : _wi
return true
}
})
// first iterate the whitelist, try find maches by "value" and if that fails
// and a "tagTextProp" is set to be other than "value", try that also
if( !result && prop == 'value' && _s.tagTextProp != 'value' ){
// if found, adds the first which matches
result = this.getWhitelistItem(value, _s.tagTextProp, whitelist)
}
return result
},
/**
* validate a tag object BEFORE the actual tag will be created & appeneded
* @param {String} s
* @param {String} uid [unique ID, to not inclue own tag when cheking for duplicates]
* @return {Boolean/String} ["true" if validation has passed, String for a fail]
*/
validateTag( tagData ){
var _s = this.settings,
// when validating a tag in edit-mode, need to take "tagTextProp" into consideration
prop = "value" in tagData ? "value" : _s.tagTextProp,
v = this.trim(tagData[prop] + "");
// check for definitive empty value
if( !(tagData[prop]+"").trim() )
return this.TEXTS.empty;
// check if pattern should be used and if so, use it to test the value
if( _s.pattern && _s.pattern instanceof RegExp && !(_s.pattern.test(v)) )
return this.TEXTS.pattern;
// if duplicates are not allowed and there is a duplicate
if( !_s.duplicates && this.isTagDuplicate(v, this.state.editing) )
return this.TEXTS.duplicate;
if( this.isTagBlacklisted(v) || (_s.enforceWhitelist && !this.isTagWhitelisted(v)) )
return this.TEXTS.notAllowed;
if( _s.validate )
return _s.validate(tagData)
return true
},
getInvalidTagAttrs(tagData, validation){
return {
"aria-invalid" : true,
"class": `${tagData.class || ''} ${this.settings.classNames.tagNotAllowed}`.trim(),
"title": validation
}
},
hasMaxTags(){
if( this.value.length >= this.settings.maxTags )
return this.TEXTS.exceed;
return false;
},
setReadonly( isReadonly ){
var _s = this.settings;
document.activeElement.blur() // exists possible edit-mode
_s.readonly = isReadonly
this.DOM.scope[(isReadonly?'set':'remove') + 'Attribute']('readonly', true)
if( _s.mode == 'mix' ){
this.DOM.input.contentEditable = !isReadonly
}
},
/**
* pre-proccess the tagsItems, which can be a complex tagsItems like an Array of Objects or a string comprised of multiple words
* so each item should be iterated on and a tag created for.
* @return {Array} [Array of Objects]
*/
normalizeTags( tagsItems ){
var {whitelist, delimiters, mode, tagTextProp, enforceWhitelist} = this.settings,
whitelistMatches = [],
whitelistWithProps = whitelist ? whitelist[0] instanceof Object : false,
// checks if this is a "collection", meanning an Array of Objects
isArray = tagsItems instanceof Array,
mapStringToCollection = s => (s+"").split(delimiters).filter(n => n).map(v => ({ [tagTextProp]:this.trim(v), value:this.trim(v) }))
if( typeof tagsItems == 'number' )
tagsItems = tagsItems.toString()
// if the argument is a "simple" String, ex: "aaa, bbb, ccc"
if( typeof tagsItems == 'string' ){
if( !tagsItems.trim() ) return [];
// go over each tag and add it (if there were multiple ones)
tagsItems = mapStringToCollection(tagsItems)
}
// is is an Array of Strings, convert to an Array of Objects
else if( isArray ){
// flatten the 2D array
tagsItems = [].concat(...tagsItems.map(item => item.value
? item // mapStringToCollection(item.value).map(newItem => ({...item,...newItem}))
: mapStringToCollection(item)
))
}
// search if the tag exists in the whitelist as an Object (has props),
// to be able to use its properties
if( whitelistWithProps ){
tagsItems.forEach(item => {
var whitelistMatchesValues = whitelistMatches.map(a=>a.value)
// if suggestions are shown, they are already filtered, so it's easier to use them,
// because the whitelist might also include items which have already been added
var filteredList = this.dropdown.filterListItems.call(this, item[tagTextProp], { exact:true })
// also filter out items which have already been matches in previous iterations
.filter(filteredItem => !whitelistMatchesValues.includes(filteredItem.value))
// get the best match out of list of possible matches.
// if there was a single item in the filtered list, use that one
var matchObj = filteredList.length > 1
? this.getWhitelistItem(item[tagTextProp], tagTextProp, filteredList)
: filteredList[0]
if( matchObj && matchObj instanceof Object ){
whitelistMatches.push( matchObj ) // set the Array (with the found Object) as the new value
}
else if( mode != 'mix' && !enforceWhitelist ){
if( item.value == undefined )
item.value = item[tagTextProp]
whitelistMatches.push(item)
}
})
// if( whitelistMatches.length )
tagsItems = whitelistMatches
}
return tagsItems;
},
/**
* Parse the initial value of a textarea (or input) element and generate mixed text w/ tags
* https://stackoverflow.com/a/57598892/104380
* @param {String} s
*/
parseMixTags( s ){
var {mixTagsInterpolator, duplicates, transformTag, enforceWhitelist, maxTags, tagTextProp} = this.settings,
tagsDataSet = [];
s = s.split(mixTagsInterpolator[0]).map((s1, i) => {
var s2 = s1.split(mixTagsInterpolator[1]),
preInterpolated = s2[0],
maxTagsReached = tagsDataSet.length == maxTags,
textProp,
tagData,
tagElm;
try{
// skip numbers and go straight to the "catch" statement
if( preInterpolated == +preInterpolated )
throw Error
tagData = JSON.parse(preInterpolated)
} catch(err){
tagData = this.normalizeTags(preInterpolated)[0] || {value:preInterpolated}
}
if( !maxTagsReached &&
s2.length > 1 &&
(!enforceWhitelist || this.isTagWhitelisted(tagData.value)) &&
!(!duplicates && this.isTagDuplicate(tagData.value)) ){
transformTag.call(this, tagData)
// in case "tagTextProp" setting is set to other than "value" and this tag does not have this prop
textProp = tagData[tagTextProp] ? tagTextProp : 'value'
tagData[textProp] = this.trim(tagData[textProp])
tagElm = this.createTagElem(tagData)