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Copy pathkendo.multiselect.js
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kendo.multiselect.js
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import "./kendo.list.js";
import "./kendo.mobile.scroller.js";
import "./kendo.virtuallist.js";
import "./kendo.html.chip.js";
import "./kendo.html.chiplist.js";
import "./kendo.html.button.js";
import { addInputPrefixSuffixContainers } from "./utils/prefix-suffix-containers.js";
export const __meta__ = {
id: "multiselect",
name: "MultiSelect",
category: "web",
description: "The MultiSelect widget allows the selection from pre-defined values.",
depends: [ "list", "html.chip", "html.chiplist", "html.button" ],
features: [ {
id: "mobile-scroller",
name: "Mobile scroller",
description: "Support for kinetic scrolling in mobile device",
depends: [ "mobile.scroller" ]
}, {
id: "virtualization",
name: "VirtualList",
description: "Support for virtualization",
depends: [ "virtuallist" ]
} ]
};
(function($, undefined) {
var kendo = window.kendo,
ui = kendo.ui,
List = ui.List,
encode = kendo.htmlEncode,
html = kendo.html,
keys = $.extend({ A: 65 }, kendo.keys),
activeElement = kendo._activeElement,
ObservableArray = kendo.data.ObservableArray,
ID = "id",
CHIP = ".k-chip",
ACCEPT = "accept",
FILTER = "filter",
REBIND = "rebind",
OPEN = "open",
CLOSE = "close",
CHANGE = "change",
PROGRESS = "progress",
SELECT = "select",
DESELECT = "deselect",
ARIA_DISABLED = "aria-disabled",
ARIA_READONLY = "aria-readonly",
ARIA_EXPANDED = "aria-expanded",
ARIA_HIDDEN = "aria-hidden",
ARIA_ACTIVEDESCENDANT = "aria-activedescendant",
ARIA_BUSY = "aria-busy",
FOCUSEDCLASS = "k-focus",
SELECTEDCLASS = "k-selected",
HIDDENCLASS = "k-hidden",
HOVERCLASS = "k-hover",
STATEDISABLED = "k-disabled",
NOCLICKCLASS = "k-no-click",
DISABLED = "disabled",
READONLY = "readonly",
AUTOCOMPLETEVALUE = "off",
ns = ".kendoMultiSelect",
CLICK = "click" + ns,
KEYDOWN = "keydown" + ns,
MOUSEENTER = "mouseenter" + ns,
MOUSELEAVE = "mouseleave" + ns,
HOVEREVENTS = MOUSEENTER + " " + MOUSELEAVE,
quotRegExp = /"/g,
isArray = Array.isArray,
styles = ["font-family",
"font-size",
"font-stretch",
"font-style",
"font-weight",
"letter-spacing",
"text-transform",
"line-height"];
var MultiSelect = List.extend({
init: function(element, options) {
var that = this, id, disabled;
that.ns = ns;
List.fn.init.call(that, element, options);
that._optionsMap = {};
that._customOptions = {};
that.options.inputMode = that.options.inputMode || that.element.attr("inputmode") || "text";
that._wrapper();
that._inputValuesContainer();
that._tagList();
that._input();
that._textContainer();
that._clearButton();
that._arrowButton();
that._tabindex(that.input);
element = that.element.attr("multiple", "multiple").hide();
options = that.options;
if (!options.placeholder) {
options.placeholder = element.data("placeholder");
}
id = element.attr(ID);
if (!id) {
id = kendo.guid();
}
if (id) {
that._tagID = id + "_tag_active";
id = id + "_taglist";
that.tagList.attr(ID, id);
}
that._initialOpen = true;
if (options.label) {
this._label();
}
that._aria();
that._dataSource();
that._ignoreCase();
that._popup();
that._tagTemplate();
that.requireValueMapper(that.options);
that._initList();
that._reset();
that._enable();
that._placeholder();
if (options.autoBind) {
that.dataSource.fetch();
} else if (options.value) {
that._preselect(options.value);
}
disabled = $(that.element).parents("fieldset").is(':disabled');
if (disabled) {
that.enable(false);
}
that._toggleCloseVisibility();
that._applyCssClasses();
addInputPrefixSuffixContainers({ widget: that, wrapper: that.wrapper, options: that.options, prefixInsertBefore: that._inputValuesContainer, suffixInsertAfter: options.clearButton ? that._clear : that.element.find("k-input-values") });
if (that.floatingLabel) {
that.floatingLabel.refresh();
}
kendo.notify(that);
},
options: {
name: "MultiSelect",
tagMode: "multiple",
enabled: true,
autoBind: true,
autoClose: true,
highlightFirst: true,
dataTextField: "",
dataValueField: "",
filter: "startswith",
ignoreCase: true,
minLength: 1,
messages: {
"singleTag": "item(s) selected",
"clear": "clear",
"deleteTag": "delete",
"noData": "No data found.",
"downArrow": "select"
},
enforceMinLength: false,
delay: 100,
value: null,
maxSelectedItems: null,
placeholder: "",
height: 200,
animation: {},
virtual: false,
itemTemplate: "",
tagTemplate: "",
groupTemplate: (data) => encode(data),
fixedGroupTemplate: (data) => encode(data),
prefixOptions: {
separator: true
},
suffixOptions: {
separator: true
},
clearButton: true,
autoWidth: false,
popup: null,
size: "medium",
fillMode: "solid",
rounded: "medium",
label: null
},
events: [
OPEN,
CLOSE,
CHANGE,
SELECT,
DESELECT,
"filtering",
"dataBinding",
"dataBound"
],
setDataSource: function(dataSource) {
this.options.dataSource = dataSource;
this._state = "";
this._dataSource();
this.persistTagList = false;
this.listView.setDataSource(this.dataSource);
if (this.options.autoBind) {
this.dataSource.fetch();
}
},
setOptions: function(options) {
var listOptions = this._listOptions(options);
List.fn.setOptions.call(this, options);
this.listView.setOptions(listOptions);
this._accessors();
this._aria();
this._tagTemplate();
this._placeholder();
this._clearButton();
this._arrowButton();
},
currentTag: function(candidate) {
var that = this;
if (candidate !== undefined) {
if (that._currentTag) {
that._currentTag
.removeClass(FOCUSEDCLASS)
.removeAttr(ID);
that._currentTag.find(".k-chip-action").attr(ARIA_HIDDEN, true);
that.input.removeAttr(ARIA_ACTIVEDESCENDANT);
}
if (candidate) {
candidate.addClass(FOCUSEDCLASS).attr(ID, that._tagID);
candidate.find(".k-chip-action").removeAttr(ARIA_HIDDEN);
that.input.attr(ARIA_ACTIVEDESCENDANT, that._tagID);
}
that._currentTag = candidate;
} else {
return that._currentTag;
}
},
dataItems: function() {
return this.listView.selectedDataItems();
},
destroy: function() {
var that = this,
ns = that.ns;
clearTimeout(that._busy);
clearTimeout(that._typingTimeout);
if (that.filterInput) {
that.filterInput.off(ns);
}
that.wrapper.off(ns);
that.tagList.off(ns);
that.input.off(ns);
that._clear.off(ns);
List.fn.destroy.call(that);
},
_onActionSheetCreate: function() {
var that = this;
that.filterInput
.on("keydown" + ns, that._keydown.bind(that))
.on("input" + ns, that._search.bind(that))
.on("paste" + ns, that._search.bind(that))
.attr({
"role": "combobox",
"aria-expanded": false,
"aria-controls": that.input.attr("aria-controls"),
"aria-autocomplete": that.input.attr("aria-autocomplete"),
"aria-describedby": that.input.attr("aria-describedby")
});
that.popup.bind("activate", () => {
that.filterInput.val(that.input.val());
that.filterInput.trigger("focus");
});
that.popup.bind("close", () => {
that.input.trigger("focus");
});
},
_aria: function() {
var that = this,
id = that.ul[0].id,
autocomplete = this.options.filter === "none" ? "none" : "list",
tagListId = that.tagList.attr(ID);
that.input.attr({
"role": "combobox",
"aria-expanded": false,
"aria-controls": id,
"aria-autocomplete": autocomplete,
"aria-describedby": tagListId
});
that._ariaLabel(that._focused);
},
_activateItem: function() {
if (this.popup.visible()) {
List.fn._activateItem.call(this);
}
this.currentTag(null);
},
_listOptions: function(options) {
var that = this;
var listOptions = List.fn._listOptions.call(that, $.extend(options, {
selectedItemChange: that._selectedItemChange.bind(that),
selectable: "multiple"
}));
var itemTemplate = this.options.itemTemplate || this.options.template;
var template = listOptions.itemTemplate || itemTemplate || listOptions.template;
if (!template) {
template = data => encode(kendo.getter(listOptions.dataTextField)(data));
}
listOptions.template = template;
return listOptions;
},
_setListValue: function() {
List.fn._setListValue.call(this, this._initialValues.slice(0));
},
_listChange: function(e) {
var data = this.dataSource.flatView();
var optionsMap = this._optionsMap;
var valueGetter = this._value;
if (this._state === REBIND) {
this._state = "";
}
for (var i = 0; i < e.added.length; i++) {
if (optionsMap[valueGetter(e.added[i].dataItem)] === undefined) {
this._render(data); //render select element <option> tags if the item does not persist in the current data view
break;
}
}
this._selectValue(e.added, e.removed);
},
_selectedItemChange: function(e) {
var items = e.items;
var context;
var idx;
for (idx = 0; idx < items.length; idx++) {
context = items[idx];
this.tagList.children(CHIP).eq(context.index).children("span").first().html(this.tagTextTemplate(context.item));
}
},
_wrapperMousedown: function(e) {
var that = this;
var notInput = e.target.nodeName.toLowerCase() !== "input";
var target = $(e.target);
var closeButton = target.closest(".k-input-button, .k-chip").children("[class*='-i-caret-alt-down']")[0];
var removeButton = target.closest("[class*='-i-x']")[0];
if (notInput && !(removeButton && kendo.support.mobileOS) && e.cancelable) {
e.preventDefault();
}
if (!removeButton) {
if (closeButton && that.popup.visible()) {
that.toggle(false);
} else {
if (that.input[0] !== activeElement() && notInput) {
that.input.trigger("focus");
}
if (that.options.minLength === 1 && !that.popup.visible()) {
that.open();
}
}
}
},
_inputFocus: function() {
this._placeholder(false, true);
this.wrapper.addClass(FOCUSEDCLASS);
},
_inputFocusout: function(e) {
var that = this;
if (that.filterInput && e.relatedTarget === that.filterInput[0]) {
return;
}
clearTimeout(that._typingTimeout);
that.wrapper.removeClass(FOCUSEDCLASS);
that._placeholder(!that.listView.selectedDataItems()[0], true);
that.close();
if (that._state === FILTER) {
that._state = ACCEPT;
that.listView.skipUpdate(true);
}
if (that.listView.bound() && that.listView.isFiltered()) {
that.persistTagList = true;
that._clearFilter();
}
that.element.trigger("blur");
},
_removeTag: function(tag, shouldTrigger) {
var that = this;
var state = that._state;
var position = tag.index();
var listView = that.listView;
var value = listView.value()[position];
var dataItem = that.listView.selectedDataItems()[position];
var customIndex = that._customOptions[value];
var listViewChildren = listView.element[0].children;
var option;
var listViewChild;
if (that.trigger(DESELECT, { dataItem: dataItem, item: tag })) {
that._close();
return;
}
if (customIndex === undefined && (state === ACCEPT || state === FILTER)) {
customIndex = that._optionsMap[value];
}
var done = function() {
that.currentTag(null);
if (shouldTrigger) {
that._change();
}
that._refreshTagListAria();
that._close();
};
if (customIndex === undefined && listView.select().length) {
that.persistTagList = false;
listView.select(listView.select()[position]).done(done);
} else {
option = that.element[0].children[customIndex];
if (option) {
option.selected = false;
}
listView.removeAt(position);
if (listView._removedAddedIndexes) {
listView._removedAddedIndexes.splice(position, 1);
}
listViewChild = listViewChildren[customIndex];
if (listViewChild) {
listViewChildren[customIndex].classList.remove("k-selected");
}
if (that.options.tagMode !== "single") {
tag.remove();
} else {
that._updateTagListHTML();
}
done();
}
},
_tagListClick: function(e) {
e.preventDefault();
e.stopPropagation();
var target = $(e.currentTarget);
if (target.is("[class*='-i-x-circle']")) {
this._removeTag(target.closest(CHIP), true);
}
},
_clearValue: function() {
var that = this;
if (that.options.tagMode === "single") {
that._clearSingleTagValue();
} else {
that.tagList.children(CHIP).each(function(index, tag) {
that._removeTag($(tag), false);
});
}
that.input.val("");
that._search(true);
that._change();
that.focus();
that._hideClear();
if (that._state === FILTER) {
that._state = ACCEPT;
}
},
_clearSingleTagValue: function() {
var that = this;
var items = that.dataItems();
var tags = that.tagList.children(CHIP);
var persistTagList = that.persistTagList;
for (var i = 0; i < items.length; i += 1) {
if (that.trigger(DESELECT, { dataItem: items[i], item: tags.first() })) {
that._close();
return;
}
}
if (persistTagList) {
that.persistTagList = false;
}
that.listView.value([]);
that.persistTagList = persistTagList;
},
_focusHandler: function() {
var input = this.input;
var active = activeElement();
var isActive = input[0] === active;
if (!isActive) {
this.input.trigger("focus");
}
},
_editable: function(options) {
var that = this,
disable = options.disable,
readonly = options.readonly,
wrapper = that.wrapper.off(ns),
tagList = that.tagList.off(ns),
input = that.input.off(ns);
if (!readonly && !disable) {
wrapper
.removeClass(STATEDISABLED)
.removeClass(NOCLICKCLASS)
.on(HOVEREVENTS, that._toggleHover)
.on("mousedown" + ns + " touchend" + ns, that._wrapperMousedown.bind(that))
.on(CLICK, that._focusHandler.bind(that));
that.input.on(KEYDOWN, that._keydown.bind(that))
.on("paste" + ns, that._search.bind(that))
.on("input" + ns, that._search.bind(that))
.on("focus" + ns, that._inputFocus.bind(that))
.on("focusout" + ns, that._inputFocusout.bind(that));
that._clear.on(CLICK + " touchend" + ns, that._clearValue.bind(that));
input.prop(DISABLED, false)
.prop(READONLY, false)
.attr(ARIA_DISABLED, false)
.attr(ARIA_READONLY, false);
that.element.prop(DISABLED, false);
tagList
.on(MOUSEENTER, CHIP, function() { $(this).addClass(HOVERCLASS); })
.on(MOUSELEAVE, CHIP, function() { $(this).removeClass(HOVERCLASS); })
.on(CLICK + " touchend" + ns, ".k-chip .k-icon,.k-chip .k-svg-icon", that._tagListClick.bind(that));
} else {
wrapper.toggleClass(STATEDISABLED, disable)
.toggleClass(NOCLICKCLASS, readonly);
input.attr(DISABLED, disable)
.attr(READONLY, readonly)
.attr(ARIA_DISABLED, disable)
.attr(ARIA_READONLY, readonly);
that.element.prop(DISABLED, disable);
}
},
_close: function() {
var that = this;
if (that.options.autoClose) {
that.close();
} else {
that.popup.position();
}
},
_filterSource: function(filter, force) {
if (!force) {
force = this._retrieveData;
}
this._retrieveData = false;
List.fn._filterSource.call(this, filter, force);
},
close: function() {
this._activeItem = null;
this.input.removeAttr(ARIA_ACTIVEDESCENDANT);
this.popup.close();
},
open: function() {
var that = this,
filterValue = that.input.val().toLowerCase(),
listViewFilter = that.listView.dataSource.filter(),
listViewFilterValue = "";
if (listViewFilter && listViewFilter.filters.length > 0) {
listViewFilterValue = (listViewFilter.filters[0].value || "").toString().toLowerCase();
}
if (that._request) {
that._retrieveData = false;
}
if (that._retrieveData || !that.listView.bound() || (that._state === ACCEPT && filterValue !== listViewFilterValue)) {
that._open = true;
that._state = REBIND;
that.listView.skipUpdate(true);
that.persistTagList = that._initialOpen && !that.listView.bound() ? false : true;
that._filterSource();
that._focusItem();
} else if (that._allowOpening()) {
//selects values in autoBind false and non virtual scenario on initial load
if (that._initialOpen && !that.options.autoBind && !that.options.virtual && that.options.value && !$.isPlainObject(that.options.value[0])) {
that.value(that.value() || that._initialValues);
}
// In some cases when the popup is opened resize is triggered which will cause it to close
// Setting the below flag will prevent this from happening
that.popup._hovered = true;
that._initialOpen = false;
that.popup.open({ altTarget: that.wrapper.add(that.element).add(that.input) });
that._focusItem();
}
},
toggle: function(toggle) {
toggle = toggle !== undefined ? toggle : !this.popup.visible();
this[toggle ? OPEN : CLOSE]();
},
refresh: function() {
this.listView.refresh();
},
_floatCheck: function() {
if (this.listView) {
var hasValue = (this.value() && this.value().length);
return !hasValue && !this.popup.visible();
}
return true;
},
_listBound: function() {
var that = this;
var data = that.dataSource.flatView();
that._render(data);
that._renderFooter();
that._renderNoData();
that._toggleNoData(!data.length);
that._resizePopup();
if (that._open) {
that._open = false;
that.toggle(that._allowOpening());
}
that.popup.position();
that._updateItemFocus();
if (that._touchScroller) {
that._touchScroller.reset();
}
that._hideBusy();
that.trigger("dataBound");
},
_updateItemFocus: function() {
var that = this,
data = that.dataSource.flatView(),
skip = that.listView.skip(),
isFirstPage = skip === undefined || skip === 0;
if (data.length && isFirstPage) {
if (!that.options.highlightFirst) {
that.listView.focus(-1);
} else {
that.listView.focusFirst();
}
}
},
_inputValue: function() {
var that = this;
var inputValue = that.filterInput && activeElement() === that.filterInput[0] ? that.filterInput.val() : that.input.val();
if (that.options.placeholder === inputValue) {
inputValue = "";
}
return inputValue;
},
value: function(value) {
var that = this;
var listView = that.listView;
var oldValue = listView.value().slice();
var maxSelectedItems = that.options.maxSelectedItems;
var clearFilters = listView.bound() && listView.isFiltered();
if (value === undefined) {
return oldValue;
}
that.persistTagList = false;
that.requireValueMapper(that.options, value);
value = that._normalizeValues(value);
if (maxSelectedItems !== null && value.length > maxSelectedItems) {
value = value.slice(0, maxSelectedItems);
}
if (clearFilters) {
that._clearFilter();
}
listView.value(value);
that._old = that._valueBeforeCascade = value.slice(); //get a new array reference
if (!clearFilters) {
that._fetchData();
}
that._toggleCloseVisibility();
},
_preselect: function(data, value) {
var that = this;
if (!isArray(data) && !(data instanceof kendo.data.ObservableArray)) {
data = [data];
}
if ($.isPlainObject(data[0]) || data[0] instanceof kendo.data.ObservableObject || !that.options.dataValueField) {
that.dataSource.data(data);
that.value(value || that._initialValues);
that._retrieveData = true;
}
},
_setOption: function(value, selected) {
var option = this.element[0].children[this._optionsMap[value]];
if (option) {
option.selected = selected;
}
},
_fetchData: function() {
var that = this;
var hasItems = !!that.dataSource.view().length;
var isEmptyArray = that.listView.value().length === 0;
if (isEmptyArray || that._request) {
return;
}
if (that._retrieveData || (!that._fetch && !hasItems)) {
that._fetch = true;
that._retrieveData = false;
that.dataSource.read().done(function() {
that._fetch = false;
});
}
},
_isBound: function() {
return this.listView.bound() && !this._retrieveData;
},
_dataSource: function() {
var that = this,
element = that.element,
options = that.options,
dataSource = options.dataSource || {};
dataSource = isArray(dataSource) ? { data: dataSource } : dataSource;
dataSource.select = element;
dataSource.fields = [{ field: options.dataTextField },
{ field: options.dataValueField }];
if (that.dataSource && that._refreshHandler) {
that._unbindDataSource();
} else {
that._progressHandler = that._showBusy;
that._endRequestHandler = that._hideBusy;
that._errorHandler = function() {
that._hideBusy();
};
}
that.dataSource = kendo.data.DataSource.create(dataSource)
.bind(PROGRESS, that._progressHandler)
.bind("requestEnd", that._endRequestHandler)
.bind("error", that._errorHandler);
},
_reset: function() {
var that = this,
element = that.element,
formId = element.attr("form"),
form = formId ? $("#" + formId) : element.closest("form");
if (form[0]) {
that._resetHandler = function() {
setTimeout(function() {
that.value(that._initialValues);
that._placeholder();
});
};
that._form = form.on("reset", that._resetHandler);
}
},
_initValue: function() {
var value = this.options.value || this.element.val();
this._old = this._initialValues = this._normalizeValues(value);
},
_normalizeValues: function(value) {
var that = this;
if (value === null) {
value = [];
} else if (value && $.isPlainObject(value)) {
value = [that._value(value)];
} else if (value && $.isPlainObject(value[0])) {
value = $.map(value, function(dataItem) { return that._value(dataItem); });
} else if (!isArray(value) && !(value instanceof ObservableArray)) {
value = [value];
} else if (isArray(value)) {
value = value.slice();
}
return value;
},
_change: function() {
var that = this,
value = that.value();
if (!compare(value, that._old)) {
that._old = value.slice();
that.trigger(CHANGE);
// trigger the DOM change event so any subscriber gets notified
that.element.trigger(CHANGE);
}
that.popup.position();
that._toggleCloseVisibility();
},
_click: function(e) {
var that = this;
var item = e.item;
e.preventDefault();
that._select(item).done(function() {
that._activeItem = item;
that._change();
that._close();
});
},
_getActiveItem: function() {
return this._activeItem || $(this.listView.items()[this._getSelectedIndices().length - 1]) || this.listView.focus();
},
_getSelectedIndices: function() {
return this.listView._selectedIndices || this.listView._selectedIndexes;
},
_keydown: function(e) {
var that = this;
var key = e.keyCode;
var tag = that._currentTag;
var listView = that.listView;
var hasValue = that.input.val();
var isRtl = kendo.support.isRtl(that.wrapper);
var visible = that.popup.visible();
var dir = 0;
var activeItemIdx;
var handled = false;
if (key !== keys.ENTER) {
this._multipleSelection = false;
}
if (key === keys.DOWN) {
e.preventDefault();
if (!visible) {
that.open();
if (!listView.focus()) {
listView.focusFirst();
}
e.stopPropagation();
return;
}
if (listView.focus()) {
if (!that._activeItem && e.shiftKey) {
that._activeItem = listView.focus();
dir = -1;
}
activeItemIdx = listView.getElementIndex(that._getActiveItem().first());
listView.focusNext();
if (!listView.focus()) {
listView.focusLast();
} else {
if (e.shiftKey && !that.options.virtual) {
this._multipleSelection = true;
that._selectRange(activeItemIdx, listView.getElementIndex(listView.focus().first()) + dir);
}
}
} else {
listView.focusFirst();
}