primevue
Version:
[](https://opensource.org/licenses/MIT) [](https://badge.fury.io/js/primevue)
666 lines (615 loc) • 25 kB
JavaScript
'use strict';
var utils = require('primevue/utils');
var Ripple = require('primevue/ripple');
var vue = require('vue');
function _interopDefaultLegacy (e) { return e && typeof e === 'object' && 'default' in e ? e : { 'default': e }; }
var Ripple__default = /*#__PURE__*/_interopDefaultLegacy(Ripple);
var script = {
emits: ['update:modelValue', 'before-show', 'before-hide', 'show', 'hide', 'change', 'filter'],
props: {
modelValue: null,
options: Array,
optionLabel: null,
optionValue: null,
optionDisabled: null,
scrollHeight: {
type: String,
default: '200px'
},
filter: Boolean,
filterPlaceholder: String,
filterLocale: String,
editable: Boolean,
placeholder: String,
disabled: Boolean,
dataKey: null,
showClear: Boolean,
inputId: String,
tabindex: String,
ariaLabelledBy: null,
appendTo: {
type: String,
default: null
},
emptyFilterMessage: {
type: String,
default: 'No results found'
}
},
data() {
return {
focused: false,
filterValue: null,
overlayVisible: false
};
},
outsideClickListener: null,
scrollHandler: null,
resizeListener: null,
searchTimeout: null,
currentSearchChar: null,
previousSearchChar: null,
searchValue: null,
overlay: null,
beforeUnmount() {
this.restoreAppend();
this.unbindOutsideClickListener();
this.unbindResizeListener();
if (this.scrollHandler) {
this.scrollHandler.destroy();
this.scrollHandler = null;
}
this.overlay = null;
},
methods: {
getOptionLabel(option) {
return this.optionLabel ? utils.ObjectUtils.resolveFieldData(option, this.optionLabel) : option;
},
getOptionValue(option) {
return this.optionValue ? utils.ObjectUtils.resolveFieldData(option, this.optionValue) : option;
},
getOptionRenderKey(option) {
return this.dataKey ? utils.ObjectUtils.resolveFieldData(option, this.dataKey) : this.getOptionLabel(option);
},
isOptionDisabled(option) {
return this.optionDisabled ? utils.ObjectUtils.resolveFieldData(option, this.optionDisabled) : false;
},
getSelectedOption() {
let selectedOption;
if (this.modelValue != null && this.options) {
for (let option of this.options) {
if ((utils.ObjectUtils.equals(this.modelValue, this.getOptionValue(option), this.equalityKey))) {
selectedOption = option;
break;
}
}
}
return selectedOption;
},
isSelected(option) {
return utils.ObjectUtils.equals(this.modelValue, this.getOptionValue(option), this.equalityKey);
},
getSelectedOptionIndex() {
let selectedOptionIndex = -1;
if (this.modelValue != null && this.visibleOptions) {
for (let i = 0; i < this.visibleOptions.length; i++) {
if ((utils.ObjectUtils.equals(this.modelValue, this.getOptionValue(this.visibleOptions[i]), this.equalityKey))) {
selectedOptionIndex = i;
break;
}
}
}
return selectedOptionIndex;
},
show() {
this.$emit('before-show');
this.overlayVisible = true;
},
hide() {
this.$emit('before-hide');
this.overlayVisible = false;
},
onFocus() {
this.focused = true;
},
onBlur() {
this.focused = false;
},
onKeyDown(event) {
switch(event.which) {
//down
case 40:
this.onDownKey(event);
break;
//up
case 38:
this.onUpKey(event);
break;
//space
case 32:
if (!this.overlayVisible) {
this.show();
event.preventDefault();
}
break;
//enter and escape
case 13:
case 27:
if (this.overlayVisible) {
this.hide();
event.preventDefault();
}
break;
//tab
case 9:
this.hide();
break;
default:
this.search(event);
break;
}
},
onFilterKeyDown(event) {
switch (event.which) {
//down
case 40:
this.onDownKey(event);
break;
//up
case 38:
this.onUpKey(event);
break;
//enter and escape
case 13:
case 27:
this.overlayVisible = false;
event.preventDefault();
break;
}
},
onDownKey(event) {
if (this.visibleOptions) {
if (!this.overlayVisible && event.altKey) {
this.show();
}
else {
let nextOption = this.findNextOption(this.getSelectedOptionIndex());
if (nextOption) {
this.updateModel(event, this.getOptionValue(nextOption));
}
}
}
event.preventDefault();
},
onUpKey(event) {
if (this.visibleOptions) {
let prevOption = this.findPrevOption(this.getSelectedOptionIndex());
if (prevOption) {
this.updateModel(event, this.getOptionValue(prevOption));
}
}
event.preventDefault();
},
findNextOption(index) {
let i = index + 1;
if (i === this.visibleOptions.length) {
return null;
}
let option = this.visibleOptions[i];
if (this.isOptionDisabled(option))
return this.findNextOption(i);
else
return option;
},
findPrevOption(index) {
let i = index - 1;
if (i < 0) {
return null;
}
let option = this.visibleOptions[i];
if (this.isOptionDisabled(option))
return this.findPrevOption(i);
else
return option;
},
onClearClick(event) {
this.updateModel(event, null);
},
onClick(event) {
if (this.disabled) {
return;
}
if (utils.DomHandler.hasClass(event.target, 'p-dropdown-clear-icon') || event.target.tagName === 'INPUT') {
return;
}
else if (!this.overlay || !this.overlay.contains(event.target)) {
if (this.overlayVisible)
this.hide();
else
this.show();
this.$refs.focusInput.focus();
}
},
onOptionSelect(event, option) {
let value = this.getOptionValue(option);
this.updateModel(event, value);
this.$refs.focusInput.focus();
setTimeout(() => {
this.hide();
}, 200);
},
onEditableInput(event) {
this.$emit('update:modelValue', event.target.value);
},
onOverlayEnter() {
this.overlay.style.zIndex = String(utils.DomHandler.generateZIndex());
this.appendContainer();
this.alignOverlay();
this.bindOutsideClickListener();
this.bindScrollListener();
this.bindResizeListener();
if (this.filter) {
this.$refs.filterInput.focus();
}
this.$emit('show');
},
onOverlayLeave() {
this.unbindOutsideClickListener();
this.unbindScrollListener();
this.unbindResizeListener();
this.$emit('hide');
this.overlay = null;
},
alignOverlay() {
if (this.appendTo) {
utils.DomHandler.absolutePosition(this.overlay, this.$el);
this.overlay.style.minWidth = utils.DomHandler.getOuterWidth(this.$el) + 'px';
} else {
utils.DomHandler.relativePosition(this.overlay, this.$el);
}
},
updateModel(event, value) {
this.$emit('update:modelValue', value);
this.$emit('change', {originalEvent: event, value: value});
},
bindOutsideClickListener() {
if (!this.outsideClickListener) {
this.outsideClickListener = (event) => {
if (this.overlayVisible && this.overlay && !this.$el.contains(event.target) && !this.overlay.contains(event.target)) {
this.hide();
}
};
document.addEventListener('click', this.outsideClickListener);
}
},
unbindOutsideClickListener() {
if (this.outsideClickListener) {
document.removeEventListener('click', this.outsideClickListener);
this.outsideClickListener = null;
}
},
bindScrollListener() {
if (!this.scrollHandler) {
this.scrollHandler = new utils.ConnectedOverlayScrollHandler(this.$refs.container, () => {
if (this.overlayVisible) {
this.hide();
}
});
}
this.scrollHandler.bindScrollListener();
},
unbindScrollListener() {
if (this.scrollHandler) {
this.scrollHandler.unbindScrollListener();
}
},
bindResizeListener() {
if (!this.resizeListener) {
this.resizeListener = () => {
if (this.overlayVisible) {
this.hide();
}
};
window.addEventListener('resize', this.resizeListener);
}
},
unbindResizeListener() {
if (this.resizeListener) {
window.removeEventListener('resize', this.resizeListener);
this.resizeListener = null;
}
},
search(event) {
if (!this.visibleOptions) {
return;
}
if (this.searchTimeout) {
clearTimeout(this.searchTimeout);
}
const char = String.fromCharCode(event.keyCode);
this.previousSearchChar = this.currentSearchChar;
this.currentSearchChar = char;
if (this.previousSearchChar === this.currentSearchChar)
this.searchValue = this.currentSearchChar;
else
this.searchValue = this.searchValue ? this.searchValue + char : char;
let searchIndex = this.getSelectedOptionIndex();
let newOption = this.searchOption(++searchIndex);
if (newOption) {
this.updateModel(event, this.getOptionValue(newOption));
}
this.searchTimeout = setTimeout(() => {
this.searchValue = null;
}, 250);
},
searchOption(index) {
let option;
if (this.searchValue) {
option = this.searchOptionInRange(index, this.visibleOptions.length);
if (!option) {
option = this.searchOptionInRange(0, index);
}
}
return option;
},
searchOptionInRange(start, end) {
for (let i = start; i < end; i++) {
let opt = this.visibleOptions[i];
let label = this.getOptionLabel(opt).toLocaleLowerCase(this.filterLocale);
if (label.startsWith(this.searchValue.toLocaleLowerCase(this.filterLocale))) {
return opt;
}
}
return null;
},
appendContainer() {
if (this.appendTo) {
if (this.appendTo === 'body')
document.body.appendChild(this.overlay);
else
document.getElementById(this.appendTo).appendChild(this.overlay);
}
},
restoreAppend() {
if (this.overlay && this.appendTo) {
if (this.appendTo === 'body')
document.body.removeChild(this.overlay);
else
document.getElementById(this.appendTo).removeChild(this.overlay);
}
},
onFilterChange(event) {
this.$emit('filter', {originalEvent: event, value: event.target.value});
if (this.overlayVisible) {
this.alignOverlay();
}
},
overlayRef(el) {
this.overlay = el;
}
},
computed: {
visibleOptions() {
if (this.filterValue && this.filterValue.trim().length > 0)
return this.options.filter(option => this.getOptionLabel(option).toLocaleLowerCase(this.filterLocale).indexOf(this.filterValue.toLocaleLowerCase(this.filterLocale)) > -1);
else
return this.options;
},
containerClass() {
return [
'p-dropdown p-component p-inputwrapper',
{
'p-disabled': this.disabled,
'p-dropdown-clearable': this.showClear && !this.disabled,
'p-focus': this.focused,
'p-inputwrapper-filled': this.modelValue,
'p-inputwrapper-focus': this.focused || this.overlayVisible
}
];
},
labelClass() {
return [
'p-dropdown-label p-inputtext',
{
'p-placeholder': this.label === this.placeholder,
'p-dropdown-label-empty': !this.$slots['value'] && (this.label === 'p-emptylabel' || this.label.length === 0)
}
];
},
label() {
let selectedOption = this.getSelectedOption();
if (selectedOption)
return this.getOptionLabel(selectedOption);
else
return this.placeholder||'p-emptylabel';
},
editableInputValue() {
let selectedOption = this.getSelectedOption();
if (selectedOption)
return this.getOptionLabel(selectedOption);
else
return this.modelValue;
},
equalityKey() {
return this.optionValue ? null : this.dataKey;
}
},
directives: {
'ripple': Ripple__default['default']
}
};
const _hoisted_1 = { class: "p-hidden-accessible" };
const _hoisted_2 = /*#__PURE__*/vue.createVNode("span", { class: "p-dropdown-trigger-icon pi pi-chevron-down" }, null, -1);
const _hoisted_3 = {
key: 0,
class: "p-dropdown-header"
};
const _hoisted_4 = { class: "p-dropdown-filter-container" };
const _hoisted_5 = /*#__PURE__*/vue.createVNode("span", { class: "p-dropdown-filter-icon pi pi-search" }, null, -1);
const _hoisted_6 = {
class: "p-dropdown-items",
role: "listbox"
};
const _hoisted_7 = {
key: 0,
class: "p-dropdown-empty-message"
};
function render(_ctx, _cache, $props, $setup, $data, $options) {
const _directive_ripple = vue.resolveDirective("ripple");
return (vue.openBlock(), vue.createBlock("div", {
ref: "container",
class: $options.containerClass,
onClick: _cache[11] || (_cache[11] = $event => ($options.onClick($event)))
}, [
vue.createVNode("div", _hoisted_1, [
vue.createVNode("input", {
ref: "focusInput",
type: "text",
id: $props.inputId,
readonly: "",
disabled: $props.disabled,
onFocus: _cache[1] || (_cache[1] = (...args) => ($options.onFocus && $options.onFocus(...args))),
onBlur: _cache[2] || (_cache[2] = (...args) => ($options.onBlur && $options.onBlur(...args))),
onKeydown: _cache[3] || (_cache[3] = (...args) => ($options.onKeyDown && $options.onKeyDown(...args))),
tabindex: $props.tabindex,
"aria-haspopup": "listbox",
"aria-expanded": $data.overlayVisible,
"aria-labelledby": $props.ariaLabelledBy
}, null, 40, ["id", "disabled", "tabindex", "aria-expanded", "aria-labelledby"])
]),
($props.editable)
? (vue.openBlock(), vue.createBlock("input", {
key: 0,
type: "text",
class: "p-dropdown-label p-inputtext",
disabled: $props.disabled,
onFocus: _cache[4] || (_cache[4] = (...args) => ($options.onFocus && $options.onFocus(...args))),
onBlur: _cache[5] || (_cache[5] = (...args) => ($options.onBlur && $options.onBlur(...args))),
placeholder: $props.placeholder,
value: $options.editableInputValue,
onInput: _cache[6] || (_cache[6] = (...args) => ($options.onEditableInput && $options.onEditableInput(...args))),
"aria-haspopup": "listbox",
"aria-expanded": $data.overlayVisible
}, null, 40, ["disabled", "placeholder", "value", "aria-expanded"]))
: vue.createCommentVNode("", true),
(!$props.editable)
? (vue.openBlock(), vue.createBlock("span", {
key: 1,
class: $options.labelClass
}, [
vue.renderSlot(_ctx.$slots, "value", {
value: $props.modelValue,
placeholder: $props.placeholder
}, () => [
vue.createTextVNode(vue.toDisplayString($options.label), 1)
])
], 2))
: vue.createCommentVNode("", true),
($props.showClear && $props.modelValue != null)
? (vue.openBlock(), vue.createBlock("i", {
key: 2,
class: "p-dropdown-clear-icon pi pi-times",
onClick: _cache[7] || (_cache[7] = $event => ($options.onClearClick($event)))
}))
: vue.createCommentVNode("", true),
vue.createVNode("div", {
class: "p-dropdown-trigger",
role: "button",
"aria-haspopup": "listbox",
"aria-expanded": $data.overlayVisible
}, [
_hoisted_2
], 8, ["aria-expanded"]),
vue.createVNode(vue.Transition, {
name: "p-connected-overlay",
onEnter: $options.onOverlayEnter,
onLeave: $options.onOverlayLeave
}, {
default: vue.withCtx(() => [
($data.overlayVisible)
? (vue.openBlock(), vue.createBlock("div", {
key: 0,
ref: $options.overlayRef,
class: "p-dropdown-panel p-component"
}, [
($props.filter)
? (vue.openBlock(), vue.createBlock("div", _hoisted_3, [
vue.createVNode("div", _hoisted_4, [
vue.withDirectives(vue.createVNode("input", {
type: "text",
ref: "filterInput",
"onUpdate:modelValue": _cache[8] || (_cache[8] = $event => ($data.filterValue = $event)),
autoComplete: "off",
class: "p-dropdown-filter p-inputtext p-component",
placeholder: $props.filterPlaceholder,
onKeydown: _cache[9] || (_cache[9] = (...args) => ($options.onFilterKeyDown && $options.onFilterKeyDown(...args))),
onInput: _cache[10] || (_cache[10] = (...args) => ($options.onFilterChange && $options.onFilterChange(...args)))
}, null, 40, ["placeholder"]), [
[vue.vModelText, $data.filterValue]
]),
_hoisted_5
])
]))
: vue.createCommentVNode("", true),
vue.createVNode("div", {
class: "p-dropdown-items-wrapper",
style: {'max-height': $props.scrollHeight}
}, [
vue.createVNode("ul", _hoisted_6, [
(vue.openBlock(true), vue.createBlock(vue.Fragment, null, vue.renderList($options.visibleOptions, (option, i) => {
return vue.withDirectives((vue.openBlock(), vue.createBlock("li", {
class: ['p-dropdown-item', {'p-highlight': $options.isSelected(option), 'p-disabled': $options.isOptionDisabled(option)}],
"aria-label": $options.getOptionLabel(option),
key: $options.getOptionRenderKey(option),
onClick: $event => ($options.onOptionSelect($event, option)),
role: "option",
"aria-selected": $options.isSelected(option)
}, [
vue.renderSlot(_ctx.$slots, "option", {
option: option,
index: i
}, () => [
vue.createTextVNode(vue.toDisplayString($options.getOptionLabel(option)), 1)
])
], 10, ["aria-label", "onClick", "aria-selected"])), [
[_directive_ripple]
])
}), 128)),
($data.filterValue && (!$options.visibleOptions || ($options.visibleOptions && $options.visibleOptions.length === 0)))
? (vue.openBlock(), vue.createBlock("li", _hoisted_7, vue.toDisplayString($props.emptyFilterMessage), 1))
: vue.createCommentVNode("", true)
])
], 4)
], 512))
: vue.createCommentVNode("", true)
]),
_: 1
}, 8, ["onEnter", "onLeave"])
], 2))
}
function styleInject(css, ref) {
if ( ref === void 0 ) ref = {};
var insertAt = ref.insertAt;
if (!css || typeof document === 'undefined') { return; }
var head = document.head || document.getElementsByTagName('head')[0];
var style = document.createElement('style');
style.type = 'text/css';
if (insertAt === 'top') {
if (head.firstChild) {
head.insertBefore(style, head.firstChild);
} else {
head.appendChild(style);
}
} else {
head.appendChild(style);
}
if (style.styleSheet) {
style.styleSheet.cssText = css;
} else {
style.appendChild(document.createTextNode(css));
}
}
var css_248z = "\n.p-dropdown {\n display: -webkit-inline-box;\n display: -ms-inline-flexbox;\n display: inline-flex;\n cursor: pointer;\n position: relative;\n -webkit-user-select: none;\n -moz-user-select: none;\n -ms-user-select: none;\n user-select: none;\n}\n.p-dropdown-clear-icon {\n position: absolute;\n top: 50%;\n margin-top: -.5rem;\n}\n.p-dropdown-trigger {\n display: -webkit-box;\n display: -ms-flexbox;\n display: flex;\n -webkit-box-align: center;\n -ms-flex-align: center;\n align-items: center;\n -webkit-box-pack: center;\n -ms-flex-pack: center;\n justify-content: center;\n -ms-flex-negative: 0;\n flex-shrink: 0;\n}\n.p-dropdown-label {\n display: block;\n white-space: nowrap;\n overflow: hidden;\n -webkit-box-flex: 1;\n -ms-flex: 1 1 auto;\n flex: 1 1 auto;\n width: 1%;\n text-overflow: ellipsis;\n cursor: pointer;\n}\n.p-dropdown-label-empty {\n overflow: hidden;\n visibility: hidden;\n}\ninput.p-dropdown-label {\n cursor: default;\n}\n.p-dropdown .p-dropdown-panel {\n min-width: 100%;\n}\n.p-dropdown-panel {\n position: absolute;\n}\n.p-dropdown-items-wrapper {\n overflow: auto;\n}\n.p-dropdown-item {\n cursor: pointer;\n font-weight: normal;\n white-space: nowrap;\n position: relative;\n overflow: hidden;\n}\n.p-dropdown-items {\n margin: 0;\n padding: 0;\n list-style-type: none;\n}\n.p-dropdown-filter {\n width: 100%;\n}\n.p-dropdown-filter-container {\n position: relative;\n}\n.p-dropdown-filter-icon {\n position: absolute;\n top: 50%;\n margin-top: -.5rem;\n}\n.p-fluid .p-dropdown {\n display: -webkit-box;\n display: -ms-flexbox;\n display: flex;\n}\n.p-fluid .p-dropdown .p-dropdown-label {\n width: 1%;\n}\n";
styleInject(css_248z);
script.render = render;
module.exports = script;