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Copy pathkendo.combobox.js
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kendo.combobox.js
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import "./kendo.list.js";
import "./kendo.mobile.scroller.js";
import "./kendo.virtuallist.js";
import "./kendo.html.button.js";
import { addInputPrefixSuffixContainers } from "./utils/prefix-suffix-containers.js";
export const __meta__ = {
id: "combobox",
name: "ComboBox",
category: "web",
description: "The ComboBox widget allows the selection from pre-defined values or entering a new value.",
depends: [ "list", "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,
encode = kendo.htmlEncode,
ui = kendo.ui,
html = kendo.html,
List = ui.List,
Select = ui.Select,
caret = kendo.caret,
support = kendo.support,
placeholderSupported = support.placeholder,
activeElement = kendo._activeElement,
keys = kendo.keys,
ns = ".kendoComboBox",
nsFocusEvent = ns + "FocusEvent",
CLICK = "click" + ns,
MOUSEDOWN = "mousedown" + ns,
DISABLED = "disabled",
READONLY = "readonly",
CHANGE = "change",
FOCUSED = "k-focus",
STATEDISABLED = "k-disabled",
ARIA_DISABLED = "aria-disabled",
ARIA_READONLY = "aria-readonly",
AUTOCOMPLETEVALUE = "off",
STATE_FILTER = "filter",
STATE_ACCEPT = "accept",
STATE_REBIND = "rebind",
HOVEREVENTS = "mouseenter" + ns + " mouseleave" + ns,
newLineRegEx = /(\r\n|\n|\r)/gm,
NON_PRINTABLE_KEYS = [16,17,18,19,20,33,34,37,39,45,91,92,144,145];
var ComboBox = Select.extend({
init: function(element, options) {
var that = this, text, disabled;
that.ns = ns;
options = Array.isArray(options) ? { dataSource: options } : options;
Select.fn.init.call(that, element, options);
options = that.options;
element = that.element.on("focus" + ns, that._focusHandler.bind(that));
options.placeholder = options.placeholder || element.attr("placeholder");
options.inputMode = options.inputMode || element.attr("inputmode") || "text";
that._reset();
that._wrapper();
that._input();
that._clearButton();
that._tabindex(that.input);
that._popup();
that._dataSource();
that._ignoreCase();
that._enable();
that._attachFocusEvents();
that._oldIndex = that.selectedIndex = -1;
that._initialIndex = options.index;
that.requireValueMapper(that.options);
that._initList();
that._cascade();
if (options.autoBind) {
that._filterSource();
} else {
text = options.text;
if (!text && that._isSelect) {
text = element.children(":selected").text();
}
if (text) {
that._setText(text);
}
}
if (!text) {
that._placeholder();
}
disabled = $(that.element).parents("fieldset").is(':disabled');
if (disabled) {
that.enable(false);
}
addInputPrefixSuffixContainers({ widget: that, wrapper: that.wrapper, options: that.options,
prefixInsertBefore: that.input,
suffixInsertAfter: that._clear.parent().length ? that._clear : that.input });
kendo.notify(that);
that._toggleCloseVisibility();
that._applyCssClasses();
if (options.label) {
that._label();
}
that._aria();
},
options: {
name: "ComboBox",
enabled: true,
index: -1,
text: null,
value: null,
autoBind: true,
delay: 200,
dataTextField: "",
dataValueField: "",
minLength: 1,
enforceMinLength: false,
height: 200,
highlightFirst: true,
filter: "none",
placeholder: "",
suggest: false,
cascadeFrom: "",
cascadeFromField: "",
cascadeFromParentField: "",
cascadeOnCustomValue: false,
ignoreCase: true,
animation: {},
virtual: false,
template: null,
groupTemplate: (data) => encode(data),
fixedGroupTemplate: (data) => encode(data),
prefixOptions: {
separator: true
},
suffixOptions: {
separator: true
},
clearButton: true,
syncValueAndText: true,
autoWidth: false,
popup: null,
size: "medium",
fillMode: "solid",
rounded: "medium",
label: null,
clearOnEscape: true,
_removeDataItems: true,
_shouldRefresh: true
},
events: [
"open",
"close",
CHANGE,
"select",
"filtering",
"dataBinding",
"dataBound",
"cascade",
"set"
],
setOptions: function(options) {
var listOptions = this._listOptions(options);
Select.fn.setOptions.call(this, options);
this.listView.setOptions(listOptions);
this._accessors();
this._aria();
this._clearButton();
},
destroy: function() {
var that = this;
that.input.off(ns);
that.input.off(nsFocusEvent);
that.element.off(ns);
that.wrapper.off(ns);
clearTimeout(that._pasteTimeout);
if (that.filterInput) {
that.filterInput.off(ns);
}
that._arrow.off(CLICK + " " + MOUSEDOWN);
that._clear.off(CLICK + " " + MOUSEDOWN);
Select.fn.destroy.call(that);
},
_popup: function() {
Select.fn._popup.call(this);
this.popup.element.addClass("k-combobox-popup");
},
_onActionSheetCreate: function() {
var that = this;
if (that.filterInput) {
that.filterInput
.on("keydown" + ns, that._keydown.bind(that))
.on("input" + ns, that._search.bind(that))
.on("paste" + ns, that._inputPaste.bind(that))
.attr({
"role": "combobox",
"aria-expanded": false
});
that.popup.bind("activate", () => {
that.filterInput.val(that.input.val());
that.filterInput.trigger("focus");
});
that.popup.bind("deactivate", () => {
that.input.trigger("focus");
});
}
},
_onCloseButtonPressed: function() {
var that = this;
var textField = that.options.dataTextField || "text";
var current = that.listView.focus();
if (!current) {
if (that._syncValueAndText() || that._isSelect) {
if (!that.dataItem() || that.dataItem()[textField] !== that.input.val()) {
var input = that.filterInput && activeElement() === that.filterInput[0] ? that.filterInput : that.input;
that._accessor(input.val());
}
}
if (that.options.highlightFirst) {
that.listView.value(that.input.val());
that._blur();
} else {
that._oldText = that.text();
}
}
},
_isValueChanged: function(value) {
return value !== List.unifyType(this._old, typeof value) &&
value !== List.unifyType(this._oldText, typeof value);
},
_change: function() {
var that = this;
var text = that.text();
var hasText = text && text !== that._oldText && text !== that.options.placeholder;
var index = that.selectedIndex;
var isCustom = index === -1;
if (that.filterInput && activeElement() === that.filterInput[0] && isCustom && hasText) {
that.input.val(that.filterInput.val());
}
if (!that.options.syncValueAndText && !that.value() && isCustom && hasText) {
that._old = "";
that._oldIndex = index;
that._oldText = text;
if (!that._typing) {
// trigger the DOM change event so any subscriber gets notified
that.element.trigger(CHANGE);
}
that.trigger(CHANGE);
that._typing = false;
return;
}
Select.fn._change.call(that);
that._oldText = that.text && that.text();
that._toggleCloseVisibility();
},
_attachFocusEvents: function() {
var that = this;
that.input.on("focus" + nsFocusEvent, that._inputFocus.bind(that))
.on("focusout" + nsFocusEvent, that._inputFocusout.bind(that));
},
_focusHandler: function(e) {
if (e.target === this.element[0]) {
this.input.trigger("focus");
}
},
_arrowClick: function() {
this._toggle();
},
_inputFocus: function() {
this.wrapper.addClass(FOCUSED);
this._placeholder(false);
},
_inputFocusout: function(e) {
var that = this;
var value = that.value();
const isClearButton = !$(e.relatedTarget).closest('.k-clear-value').length || (!$(e.relatedTarget).is(that._clear) && $(e.relatedTarget).hasClass('k-clear-value'));
if (that.filterInput && e.relatedTarget === that.filterInput[0]) {
return;
}
that._userTriggered = true;
that.wrapper.removeClass(FOCUSED);
clearTimeout(that._typingTimeout);
that._typingTimeout = null;
if (isClearButton) {
that.text(that.text());
}
var item = that._focus();
var dataItem = this.listView.dataItemByIndex(this.listView.getElementIndex(item));
var selectedIndex = that.select();
if (value !== that.value() && selectedIndex !== -1 && that.trigger("select", { dataItem: dataItem, item: item })) {
that.value(value);
return;
}
that._placeholder();
that._valueBeforeCascade = that._old;
if (isClearButton) {
that._blur();
that.element.trigger("blur");
}
},
_inputPaste: function() {
var that = this;
clearTimeout(that._pasteTimeout);
that._pasteTimeout = null;
that._pasteTimeout = setTimeout(function() {
that.search();
});
},
_editable: function(options) {
var that = this,
disable = options.disable,
readonly = options.readonly,
wrapper = that.wrapper.off(ns),
input = that.element.add(that.input.off(ns)),
arrow = that._arrow.off(CLICK + " " + MOUSEDOWN),
clear = that._clear;
if (!readonly && !disable) {
wrapper
.removeClass(STATEDISABLED)
.on(HOVEREVENTS, that._toggleHover);
input.prop(DISABLED, false)
.prop(READONLY, false)
.attr(ARIA_DISABLED, false)
.attr(ARIA_READONLY, false);
arrow.on(CLICK, that._arrowClick.bind(that))
.on(MOUSEDOWN, function(e) { e.preventDefault(); });
clear.on(CLICK + " touchend" + ns, that._clearValue.bind(that));
that.input
.on("keydown" + ns, that._keydown.bind(that))
.on("input" + ns, that._search.bind(that))
.on("paste" + ns, that._inputPaste.bind(that));
that.wrapper.on(CLICK + ns, that._focusHandler.bind(that));
} else {
wrapper
.addClass(disable ? STATEDISABLED : "")
.removeClass(disable ? "" : STATEDISABLED);
input.attr(DISABLED, disable)
.attr(READONLY, readonly)
.attr(ARIA_DISABLED, disable)
.attr(ARIA_READONLY, readonly);
}
that._toggleCloseVisibility();
},
open: function() {
var that = this;
var state = that._state;
var isFiltered = that.dataSource.filter() ? that.dataSource.filter().filters.length > 0 : false;
var reinitialized = !that.ul.find(that.listView.focus()).length;
if (that.popup.visible()) {
return;
}
if ((!that.listView.bound() && state !== STATE_FILTER) || state === STATE_ACCEPT) {
that._open = true;
that._state = STATE_REBIND;
if ((that.options.minLength !== 1 && !isFiltered) || (isFiltered && that.value() && that.selectedIndex === -1 )) {
that.refresh();
that._openPopup();
if (!this.options.virtual) {
that.listView.bound(false);
}
} else {
that._filterSource();
}
} else if (that._allowOpening()) {
// 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._openPopup();
if (that.options.virtual) {
that._focusItem();
} else if (reinitialized && that.options.highlightFirst) {
that.listView.focus(0);
}
}
},
_scrollToFocusedItem: function() {
var listView = this.listView;
listView.scrollToIndex(listView.getElementIndex(listView.focus()));
},
_openPopup: function() {
this.popup.one("activate", this._scrollToFocusedItem.bind(this));
this.popup.open();
},
_updateSelectionState: function() {
var that = this;
var text = that.options.text;
var value = that.options.value;
if (that.listView.isFiltered()) {
return;
}
if (that.selectedIndex === -1) {
if (text === undefined || text === null) {
text = value;
}
that._accessor(value);
that.input.val(text || that.input.val());
that._placeholder();
} else if (that._oldIndex === -1) {
that._oldIndex = that.selectedIndex;
}
},
_buildOptions: function(data) {
var that = this;
if (!that._isSelect) {
return;
}
var custom = that._customOption;
if (that._state === STATE_REBIND) {
that._state = "";
}
that._customOption = undefined;
that._options(data, "", that.value());
if (custom && custom[0].selected && !that.listView._emptySearch) {
that._custom(custom.val());
}
},
_updateSelection: function() {
var that = this;
var listView = that.listView;
var initialIndex = that._initialIndex;
var hasInitialIndex = initialIndex !== null && initialIndex > -1;
var filtered = that._state === STATE_FILTER;
if (filtered) {
$(listView.focus()).removeClass("k-selected");
return;
}
if (that._fetch) {
return;
}
if (!listView.value().length) {
if (hasInitialIndex) {
that.select(initialIndex);
} else if (that._accessor()) {
listView.value(that._accessor());
}
}
that._initialIndex = null;
var dataItem = listView.selectedDataItems()[0];
if (!dataItem) {
return;
}
if (that._value(dataItem) !== that.value()) {
that._custom(that._value(dataItem));
} else if (that._value(dataItem) !== that.element[0].value) {
that._accessor(that._value(dataItem));
}
if (that.text() && that.text() !== that._text(dataItem)) {
that._selectValue(dataItem);
}
},
_updateItemFocus: function() {
var listView = this.listView;
if (!this.options.highlightFirst) {
listView.focus(-1);
} else if (!listView.focus() && !listView.focusIndex()) {
listView.focus(0);
}
},
_listBound: function() {
var that = this;
var isActive = that.input[0] === activeElement() || that.filterInput && that.filterInput[0] === activeElement();
var data = that.dataSource.flatView();
var skip = that.listView.skip();
var length = data.length;
var groupsLength = that.dataSource._group ? that.dataSource._group.length : 0;
var isFirstPage = skip === undefined || skip === 0;
that._presetValue = false;
that._renderFooter();
that._renderNoData();
that._toggleNoData(!length);
that._toggleHeader(!!groupsLength && !!length);
that._resizePopup();
that.popup.position();
that._buildOptions(data);
that._updateSelection();
if (data.length && isFirstPage) {
that._updateItemFocus();
if (that.options.suggest && isActive && that.input.val()) {
that.suggest(data[0]);
}
}
if (that._open) {
that._open = false;
if (that._typingTimeout && !isActive) {
that.popup.close();
} else {
that.toggle(that._allowOpening());
}
that._typingTimeout = null;
}
that._hideBusy();
that.trigger("dataBound");
},
_listChange: function() {
this._selectValue(this.listView.selectedDataItems()[0]);
if (this._presetValue) {
this._oldIndex = this.selectedIndex;
}
},
_get: function(candidate) {
var data, found, idx;
if (typeof candidate === "function") {
data = this.dataSource.flatView();
for (idx = 0; idx < data.length; idx++) {
if (candidate(data[idx])) {
candidate = idx;
found = true;
break;
}
}
if (!found) {
candidate = -1;
}
}
if (!this.dataSource.total() && !candidate) {
candidate = -1;
}
return candidate;
},
_select: function(candidate, keepState) {
var that = this;
candidate = that._get(candidate);
if (candidate === -1) {
that.input[0].value = "";
that._accessor("");
}
return that.listView.select(candidate).done(function() {
if (!keepState && that._state === STATE_FILTER) {
that._state = STATE_ACCEPT;
}
that._toggleCloseVisibility();
});
},
_selectValue: function(dataItem) {
var idx = this.listView.select();
var value = "";
var text = "";
idx = idx[idx.length - 1];
if (idx === undefined) {
idx = -1;
}
this.selectedIndex = idx;
if (this.listView.isFiltered() && idx !== -1) {
this._valueBeforeCascade = this._old;
}
if (idx === -1 && !dataItem) {
if (this.options.syncValueAndText) {
if (this.options.dataTextField === this.options.dataValueField) {
text = this._accessor();
} else {
text = this.input[0].value;
}
value = text;
}
else {
text = this.text();
}
this.listView.focus(-1);
} else {
if (dataItem || dataItem === 0) {
value = this._dataValue(dataItem);
text = this._text(dataItem);
}
if (value === null) {
value = "";
}
}
this._setDomInputValue(text);
this._accessor(value !== undefined ? value : text, idx);
this._placeholder();
this._triggerCascade();
},
_setDomInputValue: function(text) {
var that = this;
var currentCaret = caret(this.input);
var caretStart;
if (currentCaret && currentCaret.length) {
caretStart = currentCaret[0];
}
this._prev = this.input[0].value = text;
if (caretStart && this.selectedIndex === -1) {
var mobile = support.mobileOS;
if (mobile.wp || mobile.android) {// without the timeout the caret is at the end of the input
setTimeout(function() { that.input[0].setSelectionRange(caretStart, caretStart); }, 0);
}
else {
this.input[0].setSelectionRange(caretStart, caretStart);
}
}
},
refresh: function() {
this.listView.refresh();
},
_toggleCloseVisibility: function() {
var preventShow = this.element.is(":disabled") || this.element.is("[readonly]");
if (this.text() && !preventShow) {
this._showClear();
} else {
this._hideClear();
}
},
suggest: function(word) {
var that = this;
var element = that.input[0];
var value = that.text();
var caretIdx = caret(element)[0];
var key = that._last;
var idx;
var accentFoldingFiltering = that.dataSource.options.accentFoldingFiltering;
if (key == keys.BACKSPACE || key == keys.DELETE) {
that._last = undefined;
return;
}
word = word || "";
if (typeof word !== "string") {
if (word[0]) {
word = that.dataSource.view()[List.inArray(word[0], that.ul[0])];
}
word = word ? that._text(word) : "";
}
if (caretIdx <= 0) {
caretIdx = (accentFoldingFiltering ? value.toLocaleLowerCase(accentFoldingFiltering) : value.toLowerCase()).indexOf(accentFoldingFiltering ? word.toLocaleLowerCase(accentFoldingFiltering) : word.toLowerCase()) + 1;
}
if (word) {
word = word.toString();
idx = (accentFoldingFiltering ? word.toLocaleLowerCase(accentFoldingFiltering) : word.toLowerCase()).indexOf(accentFoldingFiltering ? value.toLocaleLowerCase(accentFoldingFiltering) : value.toLowerCase());
if (idx > -1) {
value += word.substring(idx + value.length);
}
} else {
value = value.substring(0, caretIdx);
}
if (value.length !== caretIdx || !word) {
element.value = value;
if (element === activeElement()) {
caret(element, caretIdx, value.length);
}
}
},
text: function(text) {
text = text === null ? "" : text;
var that = this;
var input = that.filterInput && that.filterInput[0] === activeElement() ? that.filterInput[0] : that.input[0];
var ignoreCase = that.options.ignoreCase;
var loweredText = text;
var dataItem;
var value;
if (text === undefined) {
return input.value;
}
if (that.options.autoBind === false && !that.listView.bound()) {
that._setText(text);
return;
}
dataItem = that.dataItem();
if (dataItem && that._text(dataItem).replace && that._text(dataItem).replace(newLineRegEx,"") === text) {
value = that._value(dataItem);
if (value === List.unifyType(that._old, typeof value)) {
that._triggerCascade();
return;
}
}
if (ignoreCase) {
loweredText = loweredText.toLowerCase();
}
if (that.dataItem() && that._text(that.dataItem()) === text) {
return;
}
that._select(function(data) {
data = that._text(data);
if (ignoreCase) {
data = (data + "").toLowerCase();
}
return data === loweredText;
}).done(function() {
if (that.selectedIndex < 0) {
input.value = text;
if (that.options.syncValueAndText) {
that._accessor(text);
}
if (that._isValueChanged(text)) {
that._cascadeTriggered = true;
that._triggerCascade();
}
that._refreshFloatingLabel();
}
that._prev = input.value;
});
that._toggleCloseVisibility();
},
toggle: function(toggle) {
this._toggle(toggle, true);
},
value: function(value) {
var that = this;
var options = that.options;
var listView = that.listView;
if (value === undefined) {
value = that._accessor() || that.listView.value()[0];
return value === undefined || value === null ? "" : value;
}
that.requireValueMapper(that.options, value);
that.trigger("set", { value: value });
if (value === options.value && that.input.val() === options.text &&
!that.options.cascadeFrom) {
return;
}
that._accessor(value);
if (that._isFilterEnabled() && listView.bound() && listView.isFiltered()) {
that._clearFilter();
} else {
that._fetchData();
}
listView
.value(value)
.done(function() {
if (that.selectedIndex === -1 && (!listView._selectedDataItems || !listView._selectedDataItems.length)) {
that._accessor(value);
that.input.val(value);
that._placeholder(true);
}
if (that._userTriggered) {
that._old = that._accessor();
} else {
that._old = that._valueBeforeCascade = that._accessor();
}
that._oldIndex = that.selectedIndex;
that._prev = that._oldText = that.input.val();
if (that._state === STATE_FILTER) {
that._state = STATE_ACCEPT;
}
that._toggleCloseVisibility();
that._refreshFloatingLabel();
});
},
_click: function(e) {
var that = this;
var item = e.item;
var dataItem = that.listView.dataItemByIndex(that.listView.getElementIndex(item));
var shouldTrigger = true;
e.preventDefault();
if (dataItem) {
shouldTrigger = that._value(dataItem) !== List.unifyType(that.value(), typeof that._value(dataItem));
if (!shouldTrigger) {
that.input.val(that._text(dataItem));
}
}
if (shouldTrigger && that.trigger("select", { dataItem: dataItem, item: item })) {
that.close();
return;
}
that._userTriggered = true;
that._select(item).done(function() {
that._blur();
});
},
_syncValueAndText: function() {
return this.options.syncValueAndText;
},
_inputValue: function() {
return this.text();
},
_searchByWord: function(word) {
var that = this;
var options = that.options;
var dataSource = that.dataSource;
var ignoreCase = options.ignoreCase;
var predicate = function(dataItem) {
var text = that._text(dataItem);
if (text !== undefined) {
text = text + "";
if (text !== "" && word === "") {
return false;
}
if (ignoreCase) {
text = text.toLowerCase();
}
return text.indexOf(word) === 0;
}
};
if (ignoreCase) {
word = word.toLowerCase();
}
if (!that.ul[0].firstChild) {
dataSource.one(CHANGE, function() {
if (dataSource.view()[0]) {
that.search(word);
}
}).fetch();
return;
}
this.listView.focus(this._get(predicate));
var current = this.listView.focus();
if (current) {