1145 lines
40 KiB
Vue
Executable File
1145 lines
40 KiB
Vue
Executable File
<template>
|
|
<div ref="container" :id="id" :class="containerClass" @click="onContainerClick">
|
|
<input
|
|
v-if="editable"
|
|
ref="focusInput"
|
|
:id="inputId"
|
|
type="text"
|
|
:style="inputStyle"
|
|
:class="inputStyleClass"
|
|
:value="editableInputValue"
|
|
:placeholder="placeholder"
|
|
:tabindex="!disabled ? tabindex : -1"
|
|
:disabled="disabled"
|
|
autocomplete="off"
|
|
role="combobox"
|
|
:aria-label="ariaLabel"
|
|
:aria-labelledby="ariaLabelledby"
|
|
aria-haspopup="listbox"
|
|
:aria-expanded="overlayVisible"
|
|
:aria-controls="id + '_list'"
|
|
:aria-activedescendant="focused ? focusedOptionId : undefined"
|
|
@focus="onFocus"
|
|
@blur="onBlur"
|
|
@keydown="onKeyDown"
|
|
@input="onEditableInput"
|
|
v-bind="inputProps"
|
|
/>
|
|
<span
|
|
v-else
|
|
ref="focusInput"
|
|
:id="inputId"
|
|
:style="inputStyle"
|
|
:class="inputStyleClass"
|
|
:tabindex="!disabled ? tabindex : -1"
|
|
role="combobox"
|
|
:aria-label="ariaLabel || (label === 'p-emptylabel' ? undefined : label)"
|
|
:aria-labelledby="ariaLabelledby"
|
|
aria-haspopup="listbox"
|
|
:aria-expanded="overlayVisible"
|
|
:aria-controls="id + '_list'"
|
|
:aria-activedescendant="focused ? focusedOptionId : undefined"
|
|
:aria-disabled="disabled"
|
|
@focus="onFocus"
|
|
@blur="onBlur"
|
|
@keydown="onKeyDown"
|
|
v-bind="inputProps"
|
|
>
|
|
<slot name="value" :value="modelValue" :placeholder="placeholder">{{ label === 'p-emptylabel' ? ' ' : label || 'empty' }}</slot>
|
|
</span>
|
|
<i v-if="showClear && modelValue != null" :class="['p-dropdown-clear-icon', clearIcon]" @click="onClearClick" v-bind="clearIconProps"></i>
|
|
<div class="p-dropdown-trigger">
|
|
<slot name="indicator">
|
|
<span :class="dropdownIconClass" aria-hidden="true"></span>
|
|
</slot>
|
|
</div>
|
|
<Portal :appendTo="appendTo">
|
|
<transition name="p-connected-overlay" @enter="onOverlayEnter" @after-enter="onOverlayAfterEnter" @leave="onOverlayLeave" @after-leave="onOverlayAfterLeave">
|
|
<div v-if="overlayVisible" :ref="overlayRef" :style="panelStyle" :class="panelStyleClass" @click="onOverlayClick" @keydown="onOverlayKeyDown" v-bind="panelProps">
|
|
<span ref="firstHiddenFocusableElementOnOverlay" role="presentation" aria-hidden="true" class="p-hidden-accessible p-hidden-focusable" :tabindex="0" @focus="onFirstHiddenFocus"></span>
|
|
<slot name="header" :value="modelValue" :options="visibleOptions"></slot>
|
|
<div v-if="filter" class="p-dropdown-header">
|
|
<div class="p-dropdown-filter-container">
|
|
<input
|
|
ref="filterInput"
|
|
type="text"
|
|
:value="filterValue"
|
|
@vnode-updated="onFilterUpdated"
|
|
class="p-dropdown-filter p-inputtext p-component"
|
|
:placeholder="filterPlaceholder"
|
|
role="searchbox"
|
|
autocomplete="off"
|
|
:aria-owns="id + '_list'"
|
|
:aria-activedescendant="focusedOptionId"
|
|
@keydown="onFilterKeyDown"
|
|
@blur="onFilterBlur"
|
|
@input="onFilterChange"
|
|
v-bind="filterInputProps"
|
|
/>
|
|
<span :class="['p-dropdown-filter-icon', filterIcon]" />
|
|
</div>
|
|
<span role="status" aria-live="polite" class="p-hidden-accessible">
|
|
{{ filterResultMessageText }}
|
|
</span>
|
|
</div>
|
|
<div class="p-dropdown-items-wrapper" :style="{ 'max-height': virtualScrollerDisabled ? scrollHeight : '' }">
|
|
<VirtualScroller :ref="virtualScrollerRef" v-bind="virtualScrollerOptions" :items="visibleOptions" :style="{ height: scrollHeight }" :tabindex="-1" :disabled="virtualScrollerDisabled">
|
|
<template v-slot:content="{ styleClass, contentRef, items, getItemOptions, contentStyle, itemSize }">
|
|
<ul :ref="(el) => listRef(el, contentRef)" :id="id + '_list'" :class="['p-dropdown-items', styleClass]" :style="contentStyle" role="listbox">
|
|
<template v-for="(option, i) of items" :key="getOptionRenderKey(option, getOptionIndex(i, getItemOptions))">
|
|
<li v-if="isOptionGroup(option)" :id="id + '_' + getOptionIndex(i, getItemOptions)" :style="{ height: itemSize ? itemSize + 'px' : undefined }" class="p-dropdown-item-group" role="option">
|
|
<slot name="optiongroup" :option="option.optionGroup" :index="getOptionIndex(i, getItemOptions)">{{ getOptionGroupLabel(option.optionGroup) }}</slot>
|
|
</li>
|
|
<li
|
|
v-else
|
|
:id="id + '_' + getOptionIndex(i, getItemOptions)"
|
|
v-ripple
|
|
:style="{ height: itemSize ? itemSize + 'px' : undefined }"
|
|
:class="['p-dropdown-item', { 'p-highlight': isSelected(option), 'p-focus': focusedOptionIndex === getOptionIndex(i, getItemOptions), 'p-disabled': isOptionDisabled(option) }]"
|
|
role="option"
|
|
:aria-label="getOptionLabel(option)"
|
|
:aria-selected="isSelected(option)"
|
|
:aria-disabled="isOptionDisabled(option)"
|
|
:aria-setsize="ariaSetSize"
|
|
:aria-posinset="getAriaPosInset(getOptionIndex(i, getItemOptions))"
|
|
@click="onOptionSelect($event, option)"
|
|
@mousemove="onOptionMouseMove($event, getOptionIndex(i, getItemOptions))"
|
|
>
|
|
<slot name="option" :option="option" :index="getOptionIndex(i, getItemOptions)">{{ getOptionLabel(option) }}</slot>
|
|
</li>
|
|
</template>
|
|
<li v-if="filterValue && (!items || (items && items.length === 0))" class="p-dropdown-empty-message" role="option">
|
|
<slot name="emptyfilter">{{ emptyFilterMessageText }}</slot>
|
|
</li>
|
|
<li v-else-if="!options || (options && options.length === 0)" class="p-dropdown-empty-message" role="option">
|
|
<slot name="empty">{{ emptyMessageText }}</slot>
|
|
</li>
|
|
</ul>
|
|
</template>
|
|
<template v-if="$slots.loader" v-slot:loader="{ options }">
|
|
<slot name="loader" :options="options"></slot>
|
|
</template>
|
|
</VirtualScroller>
|
|
</div>
|
|
<slot name="footer" :value="modelValue" :options="visibleOptions"></slot>
|
|
<span v-if="!options || (options && options.length === 0)" role="status" aria-live="polite" class="p-hidden-accessible">
|
|
{{ emptyMessageText }}
|
|
</span>
|
|
<span role="status" aria-live="polite" class="p-hidden-accessible">
|
|
{{ selectedMessageText }}
|
|
</span>
|
|
<span ref="lastHiddenFocusableElementOnOverlay" role="presentation" aria-hidden="true" class="p-hidden-accessible p-hidden-focusable" :tabindex="0" @focus="onLastHiddenFocus"></span>
|
|
</div>
|
|
</transition>
|
|
</Portal>
|
|
</div>
|
|
</template>
|
|
|
|
<script>
|
|
import { FilterService } from 'primevue/api';
|
|
import OverlayEventBus from 'primevue/overlayeventbus';
|
|
import Portal from 'primevue/portal';
|
|
import Ripple from 'primevue/ripple';
|
|
import { ConnectedOverlayScrollHandler, DomHandler, ObjectUtils, UniqueComponentId, ZIndexUtils } from 'primevue/utils';
|
|
import VirtualScroller from 'primevue/virtualscroller';
|
|
|
|
export default {
|
|
name: 'Dropdown',
|
|
emits: ['update:modelValue', 'change', 'focus', 'blur', 'before-show', 'before-hide', 'show', 'hide', 'filter'],
|
|
props: {
|
|
modelValue: null,
|
|
options: Array,
|
|
optionLabel: null,
|
|
optionValue: null,
|
|
optionDisabled: null,
|
|
optionGroupLabel: null,
|
|
optionGroupChildren: null,
|
|
scrollHeight: {
|
|
type: String,
|
|
default: '200px'
|
|
},
|
|
filter: Boolean,
|
|
filterPlaceholder: String,
|
|
filterLocale: String,
|
|
filterMatchMode: {
|
|
type: String,
|
|
default: 'contains'
|
|
},
|
|
filterFields: {
|
|
type: Array,
|
|
default: null
|
|
},
|
|
editable: Boolean,
|
|
placeholder: {
|
|
type: String,
|
|
default: null
|
|
},
|
|
disabled: {
|
|
type: Boolean,
|
|
default: false
|
|
},
|
|
dataKey: null,
|
|
showClear: {
|
|
type: Boolean,
|
|
default: false
|
|
},
|
|
inputId: {
|
|
type: String,
|
|
default: null
|
|
},
|
|
inputClass: {
|
|
type: String,
|
|
default: null
|
|
},
|
|
inputStyle: {
|
|
type: null,
|
|
default: null
|
|
},
|
|
inputProps: {
|
|
type: null,
|
|
default: null
|
|
},
|
|
panelClass: {
|
|
type: String,
|
|
default: null
|
|
},
|
|
panelStyle: {
|
|
type: null,
|
|
default: null
|
|
},
|
|
panelProps: {
|
|
type: null,
|
|
default: null
|
|
},
|
|
filterInputProps: {
|
|
type: null,
|
|
default: null
|
|
},
|
|
clearIconProps: {
|
|
type: null,
|
|
default: null
|
|
},
|
|
appendTo: {
|
|
type: String,
|
|
default: 'body'
|
|
},
|
|
loading: {
|
|
type: Boolean,
|
|
default: false
|
|
},
|
|
clearIcon: {
|
|
type: String,
|
|
default: 'pi pi-times'
|
|
},
|
|
dropdownIcon: {
|
|
type: String,
|
|
default: 'pi pi-chevron-down'
|
|
},
|
|
filterIcon: {
|
|
type: String,
|
|
default: 'pi pi-search'
|
|
},
|
|
loadingIcon: {
|
|
type: String,
|
|
default: 'pi pi-spinner pi-spin'
|
|
},
|
|
resetFilterOnHide: {
|
|
type: Boolean,
|
|
default: false
|
|
},
|
|
virtualScrollerOptions: {
|
|
type: Object,
|
|
default: null
|
|
},
|
|
autoOptionFocus: {
|
|
type: Boolean,
|
|
default: true
|
|
},
|
|
autoFilterFocus: {
|
|
type: Boolean,
|
|
default: false
|
|
},
|
|
selectOnFocus: {
|
|
type: Boolean,
|
|
default: false
|
|
},
|
|
filterMessage: {
|
|
type: String,
|
|
default: null
|
|
},
|
|
selectionMessage: {
|
|
type: String,
|
|
default: null
|
|
},
|
|
emptySelectionMessage: {
|
|
type: String,
|
|
default: null
|
|
},
|
|
emptyFilterMessage: {
|
|
type: String,
|
|
default: null
|
|
},
|
|
emptyMessage: {
|
|
type: String,
|
|
default: null
|
|
},
|
|
tabindex: {
|
|
type: Number,
|
|
default: 0
|
|
},
|
|
'aria-label': {
|
|
type: String,
|
|
default: null
|
|
},
|
|
'aria-labelledby': {
|
|
type: String,
|
|
default: null
|
|
}
|
|
},
|
|
outsideClickListener: null,
|
|
scrollHandler: null,
|
|
resizeListener: null,
|
|
overlay: null,
|
|
list: null,
|
|
virtualScroller: null,
|
|
searchTimeout: null,
|
|
searchValue: null,
|
|
isModelValueChanged: false,
|
|
focusOnHover: false,
|
|
data() {
|
|
return {
|
|
focused: false,
|
|
focusedOptionIndex: -1,
|
|
filterValue: null,
|
|
overlayVisible: false
|
|
};
|
|
},
|
|
watch: {
|
|
modelValue() {
|
|
this.isModelValueChanged = true;
|
|
},
|
|
options() {
|
|
this.autoUpdateModel();
|
|
}
|
|
},
|
|
mounted() {
|
|
this.autoUpdateModel();
|
|
},
|
|
updated() {
|
|
if (this.overlayVisible && this.isModelValueChanged) {
|
|
this.scrollInView(this.findSelectedOptionIndex());
|
|
}
|
|
|
|
this.isModelValueChanged = false;
|
|
},
|
|
beforeUnmount() {
|
|
this.unbindOutsideClickListener();
|
|
this.unbindResizeListener();
|
|
|
|
if (this.scrollHandler) {
|
|
this.scrollHandler.destroy();
|
|
this.scrollHandler = null;
|
|
}
|
|
|
|
if (this.overlay) {
|
|
ZIndexUtils.clear(this.overlay);
|
|
this.overlay = null;
|
|
}
|
|
},
|
|
methods: {
|
|
getOptionIndex(index, fn) {
|
|
return this.virtualScrollerDisabled ? index : fn && fn(index)['index'];
|
|
},
|
|
getOptionLabel(option) {
|
|
return this.optionLabel ? ObjectUtils.resolveFieldData(option, this.optionLabel) : option;
|
|
},
|
|
getOptionValue(option) {
|
|
return this.optionValue ? ObjectUtils.resolveFieldData(option, this.optionValue) : option;
|
|
},
|
|
getOptionRenderKey(option, index) {
|
|
return (this.dataKey ? ObjectUtils.resolveFieldData(option, this.dataKey) : this.getOptionLabel(option)) + '_' + index;
|
|
},
|
|
isOptionDisabled(option) {
|
|
return this.optionDisabled ? ObjectUtils.resolveFieldData(option, this.optionDisabled) : false;
|
|
},
|
|
isOptionGroup(option) {
|
|
return this.optionGroupLabel && option.optionGroup && option.group;
|
|
},
|
|
getOptionGroupLabel(optionGroup) {
|
|
return ObjectUtils.resolveFieldData(optionGroup, this.optionGroupLabel);
|
|
},
|
|
getOptionGroupChildren(optionGroup) {
|
|
return ObjectUtils.resolveFieldData(optionGroup, this.optionGroupChildren);
|
|
},
|
|
getAriaPosInset(index) {
|
|
return (this.optionGroupLabel ? index - this.visibleOptions.slice(0, index).filter((option) => this.isOptionGroup(option)).length : index) + 1;
|
|
},
|
|
show(isFocus) {
|
|
this.$emit('before-show');
|
|
this.overlayVisible = true;
|
|
this.focusedOptionIndex = this.focusedOptionIndex !== -1 ? this.focusedOptionIndex : this.autoOptionFocus ? this.findFirstFocusedOptionIndex() : -1;
|
|
|
|
isFocus && DomHandler.focus(this.$refs.focusInput);
|
|
},
|
|
hide(isFocus) {
|
|
const _hide = () => {
|
|
this.$emit('before-hide');
|
|
this.overlayVisible = false;
|
|
this.focusedOptionIndex = -1;
|
|
this.searchValue = '';
|
|
|
|
this.resetFilterOnHide && (this.filterValue = null);
|
|
isFocus && DomHandler.focus(this.$refs.focusInput);
|
|
};
|
|
|
|
setTimeout(() => {
|
|
_hide();
|
|
}, 0); // For ScreenReaders
|
|
},
|
|
onFocus(event) {
|
|
if (this.disabled) {
|
|
// For ScreenReaders
|
|
return;
|
|
}
|
|
|
|
this.focused = true;
|
|
this.focusedOptionIndex = this.focusedOptionIndex !== -1 ? this.focusedOptionIndex : this.overlayVisible && this.autoOptionFocus ? this.findFirstFocusedOptionIndex() : -1;
|
|
this.overlayVisible && this.scrollInView(this.focusedOptionIndex);
|
|
this.$emit('focus', event);
|
|
},
|
|
onBlur(event) {
|
|
this.focused = false;
|
|
this.focusedOptionIndex = -1;
|
|
this.searchValue = '';
|
|
this.$emit('blur', event);
|
|
},
|
|
onKeyDown(event) {
|
|
if (this.disabled) {
|
|
event.preventDefault();
|
|
|
|
return;
|
|
}
|
|
|
|
const metaKey = event.metaKey || event.ctrlKey;
|
|
|
|
switch (event.code) {
|
|
case 'ArrowDown':
|
|
this.onArrowDownKey(event);
|
|
break;
|
|
|
|
case 'ArrowUp':
|
|
this.onArrowUpKey(event, this.editable);
|
|
break;
|
|
|
|
case 'ArrowLeft':
|
|
case 'ArrowRight':
|
|
this.onArrowLeftKey(event, this.editable);
|
|
break;
|
|
|
|
case 'Home':
|
|
this.onHomeKey(event, this.editable);
|
|
break;
|
|
|
|
case 'End':
|
|
this.onEndKey(event, this.editable);
|
|
break;
|
|
|
|
case 'PageDown':
|
|
this.onPageDownKey(event);
|
|
break;
|
|
|
|
case 'PageUp':
|
|
this.onPageUpKey(event);
|
|
break;
|
|
|
|
case 'Space':
|
|
this.onSpaceKey(event, this.editable);
|
|
break;
|
|
|
|
case 'Enter':
|
|
case 'NumpadEnter':
|
|
this.onEnterKey(event);
|
|
break;
|
|
|
|
case 'Escape':
|
|
this.onEscapeKey(event);
|
|
break;
|
|
|
|
case 'Tab':
|
|
this.onTabKey(event);
|
|
break;
|
|
|
|
case 'Backspace':
|
|
this.onBackspaceKey(event, this.editable);
|
|
break;
|
|
|
|
case 'ShiftLeft':
|
|
case 'ShiftRight':
|
|
//NOOP
|
|
break;
|
|
|
|
default:
|
|
if (!metaKey && ObjectUtils.isPrintableCharacter(event.key)) {
|
|
!this.overlayVisible && this.show();
|
|
!this.editable && this.searchOptions(event, event.key);
|
|
}
|
|
|
|
break;
|
|
}
|
|
},
|
|
onEditableInput(event) {
|
|
const value = event.target.value;
|
|
|
|
this.searchValue = '';
|
|
const matched = this.searchOptions(event, value);
|
|
|
|
!matched && (this.focusedOptionIndex = -1);
|
|
|
|
this.$emit('update:modelValue', value);
|
|
},
|
|
onContainerClick(event) {
|
|
if (this.disabled || this.loading) {
|
|
return;
|
|
}
|
|
|
|
if (DomHandler.hasClass(event.target, 'p-dropdown-clear-icon') || event.target.tagName === 'INPUT') {
|
|
return;
|
|
} else if (!this.overlay || !this.overlay.contains(event.target)) {
|
|
this.overlayVisible ? this.hide(true) : this.show(true);
|
|
}
|
|
},
|
|
onClearClick(event) {
|
|
this.updateModel(event, null);
|
|
},
|
|
onFirstHiddenFocus(event) {
|
|
const focusableEl = event.relatedTarget === this.$refs.focusInput ? DomHandler.getFirstFocusableElement(this.overlay, ':not(.p-hidden-focusable)') : this.$refs.focusInput;
|
|
|
|
DomHandler.focus(focusableEl);
|
|
},
|
|
onLastHiddenFocus(event) {
|
|
const focusableEl = event.relatedTarget === this.$refs.focusInput ? DomHandler.getLastFocusableElement(this.overlay, ':not(.p-hidden-focusable)') : this.$refs.focusInput;
|
|
|
|
DomHandler.focus(focusableEl);
|
|
},
|
|
onOptionSelect(event, option, isHide = true) {
|
|
const value = this.getOptionValue(option);
|
|
|
|
this.updateModel(event, value);
|
|
isHide && this.hide(true);
|
|
},
|
|
onOptionMouseMove(event, index) {
|
|
if (this.focusOnHover) {
|
|
this.changeFocusedOptionIndex(event, index);
|
|
}
|
|
},
|
|
onFilterChange(event) {
|
|
const value = event.target.value;
|
|
|
|
this.filterValue = value;
|
|
this.focusedOptionIndex = -1;
|
|
this.$emit('filter', { originalEvent: event, value });
|
|
|
|
!this.virtualScrollerDisabled && this.virtualScroller.scrollToIndex(0);
|
|
},
|
|
onFilterKeyDown(event) {
|
|
switch (event.code) {
|
|
case 'ArrowDown':
|
|
this.onArrowDownKey(event);
|
|
break;
|
|
|
|
case 'ArrowUp':
|
|
this.onArrowUpKey(event, true);
|
|
break;
|
|
|
|
case 'ArrowLeft':
|
|
case 'ArrowRight':
|
|
this.onArrowLeftKey(event, true);
|
|
break;
|
|
|
|
case 'Home':
|
|
this.onHomeKey(event, true);
|
|
break;
|
|
|
|
case 'End':
|
|
this.onEndKey(event, true);
|
|
break;
|
|
|
|
case 'Enter':
|
|
this.onEnterKey(event);
|
|
break;
|
|
|
|
case 'Escape':
|
|
this.onEscapeKey(event);
|
|
break;
|
|
|
|
case 'Tab':
|
|
this.onTabKey(event, true);
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
},
|
|
onFilterBlur() {
|
|
this.focusedOptionIndex = -1;
|
|
},
|
|
onFilterUpdated() {
|
|
if (this.overlayVisible) {
|
|
this.alignOverlay();
|
|
}
|
|
},
|
|
onOverlayClick(event) {
|
|
OverlayEventBus.emit('overlay-click', {
|
|
originalEvent: event,
|
|
target: this.$el
|
|
});
|
|
},
|
|
onOverlayKeyDown(event) {
|
|
switch (event.code) {
|
|
case 'Escape':
|
|
this.onEscapeKey(event);
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
},
|
|
onArrowDownKey(event) {
|
|
const optionIndex = this.focusedOptionIndex !== -1 ? this.findNextOptionIndex(this.focusedOptionIndex) : this.findFirstFocusedOptionIndex();
|
|
|
|
this.changeFocusedOptionIndex(event, optionIndex);
|
|
|
|
!this.overlayVisible && this.show();
|
|
event.preventDefault();
|
|
},
|
|
onArrowUpKey(event, pressedInInputText = false) {
|
|
if (event.altKey && !pressedInInputText) {
|
|
if (this.focusedOptionIndex !== -1) {
|
|
this.onOptionSelect(event, this.visibleOptions[this.focusedOptionIndex]);
|
|
}
|
|
|
|
this.overlayVisible && this.hide();
|
|
event.preventDefault();
|
|
} else {
|
|
const optionIndex = this.focusedOptionIndex !== -1 ? this.findPrevOptionIndex(this.focusedOptionIndex) : this.findLastFocusedOptionIndex();
|
|
|
|
this.changeFocusedOptionIndex(event, optionIndex);
|
|
|
|
!this.overlayVisible && this.show();
|
|
event.preventDefault();
|
|
}
|
|
},
|
|
onArrowLeftKey(event, pressedInInputText = false) {
|
|
pressedInInputText && (this.focusedOptionIndex = -1);
|
|
},
|
|
onHomeKey(event, pressedInInputText = false) {
|
|
if (pressedInInputText) {
|
|
event.currentTarget.setSelectionRange(0, 0);
|
|
this.focusedOptionIndex = -1;
|
|
} else {
|
|
this.changeFocusedOptionIndex(event, this.findFirstOptionIndex());
|
|
|
|
!this.overlayVisible && this.show();
|
|
}
|
|
|
|
event.preventDefault();
|
|
},
|
|
onEndKey(event, pressedInInputText = false) {
|
|
if (pressedInInputText) {
|
|
const target = event.currentTarget;
|
|
const len = target.value.length;
|
|
|
|
target.setSelectionRange(len, len);
|
|
this.focusedOptionIndex = -1;
|
|
} else {
|
|
this.changeFocusedOptionIndex(event, this.findLastOptionIndex());
|
|
|
|
!this.overlayVisible && this.show();
|
|
}
|
|
|
|
event.preventDefault();
|
|
},
|
|
onPageUpKey(event) {
|
|
this.scrollInView(0);
|
|
event.preventDefault();
|
|
},
|
|
onPageDownKey(event) {
|
|
this.scrollInView(this.visibleOptions.length - 1);
|
|
event.preventDefault();
|
|
},
|
|
onEnterKey(event) {
|
|
if (!this.overlayVisible) {
|
|
this.onArrowDownKey(event);
|
|
} else {
|
|
if (this.focusedOptionIndex !== -1) {
|
|
this.onOptionSelect(event, this.visibleOptions[this.focusedOptionIndex]);
|
|
}
|
|
|
|
this.hide();
|
|
}
|
|
|
|
event.preventDefault();
|
|
},
|
|
onSpaceKey(event, pressedInInputText = false) {
|
|
!pressedInInputText && this.onEnterKey(event);
|
|
},
|
|
onEscapeKey(event) {
|
|
this.overlayVisible && this.hide(true);
|
|
event.preventDefault();
|
|
},
|
|
onTabKey(event, pressedInInputText = false) {
|
|
if (!pressedInInputText) {
|
|
if (this.overlayVisible && this.hasFocusableElements()) {
|
|
DomHandler.focus(this.$refs.firstHiddenFocusableElementOnOverlay);
|
|
|
|
event.preventDefault();
|
|
} else {
|
|
if (this.focusedOptionIndex !== -1) {
|
|
this.onOptionSelect(event, this.visibleOptions[this.focusedOptionIndex]);
|
|
}
|
|
|
|
this.overlayVisible && this.hide(this.filter);
|
|
}
|
|
}
|
|
},
|
|
onBackspaceKey(event, pressedInInputText = false) {
|
|
if (pressedInInputText) {
|
|
!this.overlayVisible && this.show();
|
|
}
|
|
},
|
|
onOverlayEnter(el) {
|
|
ZIndexUtils.set('overlay', el, this.$primevue.config.zIndex.overlay);
|
|
this.alignOverlay();
|
|
this.scrollInView();
|
|
|
|
this.autoFilterFocus && DomHandler.focus(this.$refs.filterInput);
|
|
},
|
|
onOverlayAfterEnter() {
|
|
this.bindOutsideClickListener();
|
|
this.bindScrollListener();
|
|
this.bindResizeListener();
|
|
|
|
this.$emit('show');
|
|
},
|
|
onOverlayLeave() {
|
|
this.unbindOutsideClickListener();
|
|
this.unbindScrollListener();
|
|
this.unbindResizeListener();
|
|
|
|
this.$emit('hide');
|
|
this.overlay = null;
|
|
},
|
|
onOverlayAfterLeave(el) {
|
|
ZIndexUtils.clear(el);
|
|
},
|
|
alignOverlay() {
|
|
if (this.appendTo === 'self') {
|
|
DomHandler.relativePosition(this.overlay, this.$el);
|
|
} else {
|
|
this.overlay.style.minWidth = DomHandler.getOuterWidth(this.$el) + 'px';
|
|
DomHandler.absolutePosition(this.overlay, this.$el);
|
|
}
|
|
},
|
|
bindOutsideClickListener() {
|
|
if (!this.outsideClickListener) {
|
|
this.outsideClickListener = (event) => {
|
|
if (this.overlayVisible && this.overlay && !this.$el.contains(event.target) && !this.overlay.contains(event.target)) {
|
|
this.hide();
|
|
}
|
|
};
|
|
|
|
document.addEventListener('click', this.outsideClickListener);
|
|
}
|
|
},
|
|
unbindOutsideClickListener() {
|
|
if (this.outsideClickListener) {
|
|
document.removeEventListener('click', this.outsideClickListener);
|
|
this.outsideClickListener = null;
|
|
}
|
|
},
|
|
bindScrollListener() {
|
|
if (!this.scrollHandler) {
|
|
this.scrollHandler = new ConnectedOverlayScrollHandler(this.$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 && !DomHandler.isTouchDevice()) {
|
|
this.hide();
|
|
}
|
|
};
|
|
|
|
window.addEventListener('resize', this.resizeListener);
|
|
}
|
|
},
|
|
unbindResizeListener() {
|
|
if (this.resizeListener) {
|
|
window.removeEventListener('resize', this.resizeListener);
|
|
this.resizeListener = null;
|
|
}
|
|
},
|
|
hasFocusableElements() {
|
|
return DomHandler.getFocusableElements(this.overlay, ':not(.p-hidden-focusable)').length > 0;
|
|
},
|
|
isOptionMatched(option) {
|
|
return this.isValidOption(option) && this.getOptionLabel(option).toLocaleLowerCase(this.filterLocale).startsWith(this.searchValue.toLocaleLowerCase(this.filterLocale));
|
|
},
|
|
isValidOption(option) {
|
|
return option && !(this.isOptionDisabled(option) || this.isOptionGroup(option));
|
|
},
|
|
isValidSelectedOption(option) {
|
|
return this.isValidOption(option) && this.isSelected(option);
|
|
},
|
|
isSelected(option) {
|
|
return ObjectUtils.equals(this.modelValue, this.getOptionValue(option), this.equalityKey);
|
|
},
|
|
findFirstOptionIndex() {
|
|
return this.visibleOptions.findIndex((option) => this.isValidOption(option));
|
|
},
|
|
findLastOptionIndex() {
|
|
return ObjectUtils.findLastIndex(this.visibleOptions, (option) => this.isValidOption(option));
|
|
},
|
|
findNextOptionIndex(index) {
|
|
const matchedOptionIndex = index < this.visibleOptions.length - 1 ? this.visibleOptions.slice(index + 1).findIndex((option) => this.isValidOption(option)) : -1;
|
|
|
|
return matchedOptionIndex > -1 ? matchedOptionIndex + index + 1 : index;
|
|
},
|
|
findPrevOptionIndex(index) {
|
|
const matchedOptionIndex = index > 0 ? ObjectUtils.findLastIndex(this.visibleOptions.slice(0, index), (option) => this.isValidOption(option)) : -1;
|
|
|
|
return matchedOptionIndex > -1 ? matchedOptionIndex : index;
|
|
},
|
|
findSelectedOptionIndex() {
|
|
return this.hasSelectedOption ? this.visibleOptions.findIndex((option) => this.isValidSelectedOption(option)) : -1;
|
|
},
|
|
findFirstFocusedOptionIndex() {
|
|
const selectedIndex = this.findSelectedOptionIndex();
|
|
|
|
return selectedIndex < 0 ? this.findFirstOptionIndex() : selectedIndex;
|
|
},
|
|
findLastFocusedOptionIndex() {
|
|
const selectedIndex = this.findSelectedOptionIndex();
|
|
|
|
return selectedIndex < 0 ? this.findLastOptionIndex() : selectedIndex;
|
|
},
|
|
searchOptions(event, char) {
|
|
this.searchValue = (this.searchValue || '') + char;
|
|
|
|
let optionIndex = -1;
|
|
let matched = false;
|
|
|
|
if (this.focusedOptionIndex !== -1) {
|
|
optionIndex = this.visibleOptions.slice(this.focusedOptionIndex).findIndex((option) => this.isOptionMatched(option));
|
|
optionIndex = optionIndex === -1 ? this.visibleOptions.slice(0, this.focusedOptionIndex).findIndex((option) => this.isOptionMatched(option)) : optionIndex + this.focusedOptionIndex;
|
|
} else {
|
|
optionIndex = this.visibleOptions.findIndex((option) => this.isOptionMatched(option));
|
|
}
|
|
|
|
if (optionIndex !== -1) {
|
|
matched = true;
|
|
}
|
|
|
|
if (optionIndex === -1 && this.focusedOptionIndex === -1) {
|
|
optionIndex = this.findFirstFocusedOptionIndex();
|
|
}
|
|
|
|
if (optionIndex !== -1) {
|
|
this.changeFocusedOptionIndex(event, optionIndex);
|
|
}
|
|
|
|
if (this.searchTimeout) {
|
|
clearTimeout(this.searchTimeout);
|
|
}
|
|
|
|
this.searchTimeout = setTimeout(() => {
|
|
this.searchValue = '';
|
|
this.searchTimeout = null;
|
|
}, 500);
|
|
|
|
return matched;
|
|
},
|
|
changeFocusedOptionIndex(event, index) {
|
|
if (this.focusedOptionIndex !== index) {
|
|
this.focusedOptionIndex = index;
|
|
this.scrollInView();
|
|
|
|
if (this.selectOnFocus) {
|
|
this.onOptionSelect(event, this.visibleOptions[index], false);
|
|
}
|
|
}
|
|
},
|
|
scrollInView(index = -1) {
|
|
const id = index !== -1 ? `${this.id}_${index}` : this.focusedOptionId;
|
|
const element = DomHandler.findSingle(this.list, `li[id="${id}"]`);
|
|
|
|
if (element) {
|
|
element.scrollIntoView && element.scrollIntoView({ block: 'nearest', inline: 'start' });
|
|
} else if (!this.virtualScrollerDisabled) {
|
|
setTimeout(() => {
|
|
this.virtualScroller && this.virtualScroller.scrollToIndex(index !== -1 ? index : this.focusedOptionIndex);
|
|
}, 0);
|
|
}
|
|
},
|
|
autoUpdateModel() {
|
|
if (this.selectOnFocus && this.autoOptionFocus && !this.hasSelectedOption) {
|
|
this.focusedOptionIndex = this.findFirstFocusedOptionIndex();
|
|
this.onOptionSelect(null, this.visibleOptions[this.focusedOptionIndex], false);
|
|
}
|
|
},
|
|
updateModel(event, value) {
|
|
this.$emit('update:modelValue', value);
|
|
this.$emit('change', { originalEvent: event, value });
|
|
},
|
|
flatOptions(options) {
|
|
return (options || []).reduce((result, option, index) => {
|
|
result.push({ optionGroup: option, group: true, index });
|
|
|
|
const optionGroupChildren = this.getOptionGroupChildren(option);
|
|
|
|
optionGroupChildren && optionGroupChildren.forEach((o) => result.push(o));
|
|
|
|
return result;
|
|
}, []);
|
|
},
|
|
overlayRef(el) {
|
|
this.overlay = el;
|
|
},
|
|
listRef(el, contentRef) {
|
|
this.list = el;
|
|
contentRef && contentRef(el); // For VirtualScroller
|
|
},
|
|
virtualScrollerRef(el) {
|
|
this.virtualScroller = el;
|
|
}
|
|
},
|
|
computed: {
|
|
containerClass() {
|
|
return [
|
|
'p-dropdown p-component p-inputwrapper',
|
|
{
|
|
'p-disabled': this.disabled,
|
|
'p-dropdown-clearable': this.showClear && !this.disabled,
|
|
'p-focus': this.focused,
|
|
'p-inputwrapper-filled': this.modelValue,
|
|
'p-inputwrapper-focus': this.focused || this.overlayVisible,
|
|
'p-overlay-open': this.overlayVisible
|
|
}
|
|
];
|
|
},
|
|
inputStyleClass() {
|
|
return [
|
|
'p-dropdown-label p-inputtext',
|
|
this.inputClass,
|
|
{
|
|
'p-placeholder': !this.editable && this.label === this.placeholder,
|
|
'p-dropdown-label-empty': !this.editable && !this.$slots['value'] && (this.label === 'p-emptylabel' || this.label.length === 0)
|
|
}
|
|
];
|
|
},
|
|
panelStyleClass() {
|
|
return [
|
|
'p-dropdown-panel p-component',
|
|
this.panelClass,
|
|
{
|
|
'p-input-filled': this.$primevue.config.inputStyle === 'filled',
|
|
'p-ripple-disabled': this.$primevue.config.ripple === false
|
|
}
|
|
];
|
|
},
|
|
dropdownIconClass() {
|
|
return ['p-dropdown-trigger-icon', this.loading ? this.loadingIcon : this.dropdownIcon];
|
|
},
|
|
visibleOptions() {
|
|
const options = this.optionGroupLabel ? this.flatOptions(this.options) : this.options || [];
|
|
|
|
if (this.filterValue) {
|
|
const filteredOptions = FilterService.filter(options, this.searchFields, this.filterValue, this.filterMatchMode, this.filterLocale);
|
|
|
|
if (this.optionGroupLabel) {
|
|
const optionGroups = this.options || [];
|
|
const filtered = [];
|
|
|
|
optionGroups.forEach((group) => {
|
|
const filteredItems = group.items.filter((item) => filteredOptions.includes(item));
|
|
|
|
if (filteredItems.length > 0) filtered.push({ ...group, items: [...filteredItems] });
|
|
});
|
|
|
|
return this.flatOptions(filtered);
|
|
}
|
|
|
|
return filteredOptions;
|
|
}
|
|
|
|
return options;
|
|
},
|
|
hasSelectedOption() {
|
|
return ObjectUtils.isNotEmpty(this.modelValue);
|
|
},
|
|
label() {
|
|
const selectedOptionIndex = this.findSelectedOptionIndex();
|
|
|
|
return selectedOptionIndex !== -1 ? this.getOptionLabel(this.visibleOptions[selectedOptionIndex]) : this.placeholder || 'p-emptylabel';
|
|
},
|
|
editableInputValue() {
|
|
const selectedOptionIndex = this.findSelectedOptionIndex();
|
|
|
|
return selectedOptionIndex !== -1 ? this.getOptionLabel(this.visibleOptions[selectedOptionIndex]) : this.modelValue || '';
|
|
},
|
|
equalityKey() {
|
|
return this.optionValue ? null : this.dataKey;
|
|
},
|
|
searchFields() {
|
|
return this.filterFields || [this.optionLabel];
|
|
},
|
|
filterResultMessageText() {
|
|
return ObjectUtils.isNotEmpty(this.visibleOptions) ? this.filterMessageText.replaceAll('{0}', this.visibleOptions.length) : this.emptyFilterMessageText;
|
|
},
|
|
filterMessageText() {
|
|
return this.filterMessage || this.$primevue.config.locale.searchMessage || '';
|
|
},
|
|
emptyFilterMessageText() {
|
|
return this.emptyFilterMessage || this.$primevue.config.locale.emptySearchMessage || this.$primevue.config.locale.emptyFilterMessage || '';
|
|
},
|
|
emptyMessageText() {
|
|
return this.emptyMessage || this.$primevue.config.locale.emptyMessage || '';
|
|
},
|
|
selectionMessageText() {
|
|
return this.selectionMessage || this.$primevue.config.locale.selectionMessage || '';
|
|
},
|
|
emptySelectionMessageText() {
|
|
return this.emptySelectionMessage || this.$primevue.config.locale.emptySelectionMessage || '';
|
|
},
|
|
selectedMessageText() {
|
|
return this.hasSelectedOption ? this.selectionMessageText.replaceAll('{0}', '1') : this.emptySelectionMessageText;
|
|
},
|
|
id() {
|
|
return this.$attrs.id || UniqueComponentId();
|
|
},
|
|
focusedOptionId() {
|
|
return this.focusedOptionIndex !== -1 ? `${this.id}_${this.focusedOptionIndex}` : null;
|
|
},
|
|
ariaSetSize() {
|
|
return this.visibleOptions.filter((option) => !this.isOptionGroup(option)).length;
|
|
},
|
|
virtualScrollerDisabled() {
|
|
return !this.virtualScrollerOptions;
|
|
}
|
|
},
|
|
directives: {
|
|
ripple: Ripple
|
|
},
|
|
components: {
|
|
VirtualScroller: VirtualScroller,
|
|
Portal: Portal
|
|
}
|
|
};
|
|
</script>
|
|
|
|
<style>
|
|
.p-dropdown {
|
|
display: inline-flex;
|
|
cursor: pointer;
|
|
position: relative;
|
|
user-select: none;
|
|
}
|
|
|
|
.p-dropdown-clear-icon {
|
|
position: absolute;
|
|
top: 50%;
|
|
margin-top: -0.5rem;
|
|
}
|
|
|
|
.p-dropdown-trigger {
|
|
display: flex;
|
|
align-items: center;
|
|
justify-content: center;
|
|
flex-shrink: 0;
|
|
}
|
|
|
|
.p-dropdown-label {
|
|
display: block;
|
|
white-space: nowrap;
|
|
overflow: hidden;
|
|
flex: 1 1 auto;
|
|
width: 1%;
|
|
text-overflow: ellipsis;
|
|
cursor: pointer;
|
|
}
|
|
|
|
.p-dropdown-label-empty {
|
|
overflow: hidden;
|
|
opacity: 0;
|
|
}
|
|
|
|
input.p-dropdown-label {
|
|
cursor: default;
|
|
}
|
|
|
|
.p-dropdown .p-dropdown-panel {
|
|
min-width: 100%;
|
|
}
|
|
|
|
.p-dropdown-panel {
|
|
position: absolute;
|
|
top: 0;
|
|
left: 0;
|
|
}
|
|
|
|
.p-dropdown-items-wrapper {
|
|
overflow: auto;
|
|
}
|
|
|
|
.p-dropdown-item {
|
|
cursor: pointer;
|
|
font-weight: normal;
|
|
white-space: nowrap;
|
|
position: relative;
|
|
overflow: hidden;
|
|
}
|
|
|
|
.p-dropdown-item-group {
|
|
cursor: auto;
|
|
}
|
|
|
|
.p-dropdown-items {
|
|
margin: 0;
|
|
padding: 0;
|
|
list-style-type: none;
|
|
}
|
|
|
|
.p-dropdown-filter {
|
|
width: 100%;
|
|
}
|
|
|
|
.p-dropdown-filter-container {
|
|
position: relative;
|
|
}
|
|
|
|
.p-dropdown-filter-icon {
|
|
position: absolute;
|
|
top: 50%;
|
|
margin-top: -0.5rem;
|
|
}
|
|
|
|
.p-fluid .p-dropdown {
|
|
display: flex;
|
|
}
|
|
|
|
.p-fluid .p-dropdown .p-dropdown-label {
|
|
width: 1%;
|
|
}
|
|
</style>
|