938 lines
39 KiB
Vue
Executable File
938 lines
39 KiB
Vue
Executable File
<template>
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<div ref="container" :id="id" :class="cx('root')" :style="sx('root')" @click="onContainerClick" v-bind="ptm('root')" data-pc-name="dropdown">
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<input
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v-if="editable"
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ref="focusInput"
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:id="inputId"
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type="text"
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:class="[cx('input'), inputClass]"
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:style="inputStyle"
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:value="editableInputValue"
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:placeholder="placeholder"
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:tabindex="!disabled ? tabindex : -1"
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:disabled="disabled"
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autocomplete="off"
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role="combobox"
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:aria-label="ariaLabel"
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:aria-labelledby="ariaLabelledby"
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aria-haspopup="listbox"
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:aria-expanded="overlayVisible"
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:aria-controls="id + '_list'"
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:aria-activedescendant="focused ? focusedOptionId : undefined"
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@focus="onFocus"
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@blur="onBlur"
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@keydown="onKeyDown"
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@input="onEditableInput"
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v-bind="{ ...inputProps, ...ptm('input') }"
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/>
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<span
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v-else
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ref="focusInput"
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:id="inputId"
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:class="[cx('input'), inputClass]"
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:style="inputStyle"
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:tabindex="!disabled ? tabindex : -1"
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role="combobox"
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:aria-label="ariaLabel || (label === 'p-emptylabel' ? undefined : label)"
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:aria-labelledby="ariaLabelledby"
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aria-haspopup="listbox"
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:aria-expanded="overlayVisible"
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:aria-controls="id + '_list'"
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:aria-activedescendant="focused ? focusedOptionId : undefined"
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:aria-disabled="disabled"
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@focus="onFocus"
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@blur="onBlur"
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@keydown="onKeyDown"
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v-bind="{ ...inputProps, ...ptm('input') }"
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>
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<slot name="value" :value="modelValue" :placeholder="placeholder">{{ label === 'p-emptylabel' ? ' ' : label || 'empty' }}</slot>
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</span>
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<slot v-if="showClear && modelValue != null" name="clearicon" :class="cx('clearIcon')" :onClick="onClearClick">
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<component :is="clearIcon ? 'i' : 'TimesIcon'" ref="clearIcon" :class="[cx('clearIcon'), clearIcon]" @click="onClearClick" v-bind="{ ...clearIconProps, ...ptm('clearIcon') }" />
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</slot>
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<div :class="cx('trigger')" v-bind="ptm('trigger')">
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<slot v-if="loading" name="loadingicon" :class="cx('loadingIcon')">
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<span v-if="loadingIcon" :class="[cx('loadingIcon'), 'pi-spin', loadingIcon]" aria-hidden="true" v-bind="ptm('loadingIcon')" />
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<SpinnerIcon v-else :class="cx('loadingIcon')" spin aria-hidden="true" v-bind="ptm('loadingIcon')" />
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</slot>
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<slot v-else name="dropdownicon" :class="cx('dropdownIcon')">
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<component :is="dropdownIcon ? 'span' : 'ChevronDownIcon'" :class="[cx('dropdownIcon'), dropdownIcon]" aria-hidden="true" v-bind="ptm('dropdownIcon')" />
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</slot>
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</div>
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<Portal :appendTo="appendTo">
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<transition name="p-connected-overlay" @enter="onOverlayEnter" @after-enter="onOverlayAfterEnter" @leave="onOverlayLeave" @after-leave="onOverlayAfterLeave">
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<div v-if="overlayVisible" :ref="overlayRef" :class="[cx('panel'), panelClass]" :style="panelStyle" @click="onOverlayClick" @keydown="onOverlayKeyDown" v-bind="{ ...panelProps, ...ptm('panel') }">
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<span
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ref="firstHiddenFocusableElementOnOverlay"
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role="presentation"
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aria-hidden="true"
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:class="cx('hiddenFirstFocusableEl')"
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:style="sx('hiddenAccessible', isUnstyled)"
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:tabindex="0"
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@focus="onFirstHiddenFocus"
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v-bind="ptm('hiddenFirstFocusableEl')"
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:data-p-hidden-accessible="true"
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:data-p-hidden-focusable="true"
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></span>
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<slot name="header" :value="modelValue" :options="visibleOptions"></slot>
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<div v-if="filter" :class="cx('header')" v-bind="ptm('header')">
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<div :class="cx('filterContainer')" v-bind="ptm('filterContainer')">
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<input
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ref="filterInput"
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type="text"
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:value="filterValue"
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@vue:mounted="onFilterUpdated"
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:class="cx('filterInput')"
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:placeholder="filterPlaceholder"
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role="searchbox"
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autocomplete="off"
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:aria-owns="id + '_list'"
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:aria-activedescendant="focusedOptionId"
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@keydown="onFilterKeyDown"
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@blur="onFilterBlur"
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@input="onFilterChange"
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v-bind="{ ...filterInputProps, ...ptm('filterInput') }"
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/>
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<slot name="filtericon" :class="cx('filterIcon')">
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<component :is="filterIcon ? 'span' : 'FilterIcon'" :class="[cx('filterIcon'), filterIcon]" v-bind="ptm('filterIcon')" />
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</slot>
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</div>
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<span role="status" aria-live="polite" :class="cx('hiddenFilterResult')" :style="sx('hiddenAccessible', isUnstyled)" v-bind="ptm('hiddenFilterResult')" :data-p-hidden-accessible="true">
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{{ filterResultMessageText }}
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</span>
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</div>
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<div :class="cx('wrapper')" :style="{ 'max-height': virtualScrollerDisabled ? scrollHeight : '' }" v-bind="ptm('wrapper')">
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<VirtualScroller :ref="virtualScrollerRef" v-bind="virtualScrollerOptions" :items="visibleOptions" :style="{ height: scrollHeight }" :tabindex="-1" :disabled="virtualScrollerDisabled" :pt="ptm('virtualScroller')">
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<template v-slot:content="{ styleClass, contentRef, items, getItemOptions, contentStyle, itemSize }">
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<ul :ref="(el) => listRef(el, contentRef)" :id="id + '_list'" :class="[cx('list'), styleClass]" :style="contentStyle" role="listbox" v-bind="ptm('list')">
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<template v-for="(option, i) of items" :key="getOptionRenderKey(option, getOptionIndex(i, getItemOptions))">
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<li v-if="isOptionGroup(option)" :id="id + '_' + getOptionIndex(i, getItemOptions)" :style="{ height: itemSize ? itemSize + 'px' : undefined }" :class="cx('itemGroup')" role="option" v-bind="ptm('itemGroup')">
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<slot name="optiongroup" :option="option.optionGroup" :index="getOptionIndex(i, getItemOptions)">{{ getOptionGroupLabel(option.optionGroup) }}</slot>
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</li>
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<li
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v-else
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:id="id + '_' + getOptionIndex(i, getItemOptions)"
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v-ripple
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:class="cx('item', { option, focusedOption: getOptionIndex(i, getItemOptions) })"
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:style="{ height: itemSize ? itemSize + 'px' : undefined }"
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role="option"
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:aria-label="getOptionLabel(option)"
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:aria-selected="isSelected(option)"
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:aria-disabled="isOptionDisabled(option)"
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:aria-setsize="ariaSetSize"
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:aria-posinset="getAriaPosInset(getOptionIndex(i, getItemOptions))"
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@click="onOptionSelect($event, option)"
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@mousemove="onOptionMouseMove($event, getOptionIndex(i, getItemOptions))"
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:data-p-highlight="isSelected(option)"
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:data-p-focused="focusedOptionIndex === getOptionIndex(i, getItemOptions)"
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:data-p-disabled="isOptionDisabled(option)"
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v-bind="getPTOptions(option, getItemOptions, i, 'item')"
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>
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<slot name="option" :option="option" :index="getOptionIndex(i, getItemOptions)">{{ getOptionLabel(option) }}</slot>
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</li>
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</template>
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<li
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v-if="filterValue && (!items || (items && items.length === 0))"
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:class="cx('emptyMessage')"
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:style="sx('hiddenAccessible', isUnstyled)"
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role="option"
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v-bind="ptm('emptyMessage')"
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:data-p-hidden-accessible="true"
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>
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<slot name="emptyfilter">{{ emptyFilterMessageText }}</slot>
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</li>
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<li v-else-if="!options || (options && options.length === 0)" :class="cx('emptyMessage')" :style="sx('hiddenAccessible', isUnstyled)" role="option" v-bind="ptm('emptyMessage')" :data-p-hidden-accessible="true">
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<slot name="empty">{{ emptyMessageText }}</slot>
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</li>
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</ul>
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</template>
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<template v-if="$slots.loader" v-slot:loader="{ options }">
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<slot name="loader" :options="options"></slot>
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</template>
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</VirtualScroller>
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</div>
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<slot name="footer" :value="modelValue" :options="visibleOptions"></slot>
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<span
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v-if="!options || (options && options.length === 0)"
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role="status"
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aria-live="polite"
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:class="cx('emptyHiddenMessage')"
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:style="sx('hiddenAccessible', isUnstyled)"
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v-bind="ptm('hiddenEmptyMessage')"
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:data-p-hidden-accessible="true"
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>
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{{ emptyMessageText }}
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</span>
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<span role="status" aria-live="polite" :class="cx('hiddenSelectedMessage')" :style="sx('hiddenAccessible', isUnstyled)" v-bind="ptm('hiddenSelectedMessage')" :data-p-hidden-accessible="true">
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{{ selectedMessageText }}
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</span>
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<span
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ref="lastHiddenFocusableElementOnOverlay"
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role="presentation"
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aria-hidden="true"
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:class="cx('hiddenLastFocusableEl')"
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:style="sx('hiddenAccessible', isUnstyled)"
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:tabindex="0"
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@focus="onLastHiddenFocus"
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v-bind="ptm('hiddenLastFocusableEl')"
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:data-p-hidden-accessible="true"
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:data-p-hidden-focusable="true"
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></span>
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</div>
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</transition>
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</Portal>
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</div>
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</template>
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<script>
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import { FilterService } from 'primevue/api';
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import ChevronDownIcon from 'primevue/icons/chevrondown';
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import FilterIcon from 'primevue/icons/filter';
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import SpinnerIcon from 'primevue/icons/spinner';
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import TimesIcon from 'primevue/icons/times';
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import OverlayEventBus from 'primevue/overlayeventbus';
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import Portal from 'primevue/portal';
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import Ripple from 'primevue/ripple';
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import { ConnectedOverlayScrollHandler, DomHandler, ObjectUtils, UniqueComponentId, ZIndexUtils } from 'primevue/utils';
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import VirtualScroller from 'primevue/virtualscroller';
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import BaseDropdown from './BaseDropdown.vue';
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export default {
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name: 'Dropdown',
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extends: BaseDropdown,
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emits: ['update:modelValue', 'change', 'focus', 'blur', 'before-show', 'before-hide', 'show', 'hide', 'filter'],
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outsideClickListener: null,
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scrollHandler: null,
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resizeListener: null,
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overlay: null,
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list: null,
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virtualScroller: null,
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searchTimeout: null,
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searchValue: null,
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isModelValueChanged: false,
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focusOnHover: false,
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data() {
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return {
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id: this.$attrs.id,
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focused: false,
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focusedOptionIndex: -1,
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filterValue: null,
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overlayVisible: false
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};
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},
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watch: {
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'$attrs.id': function (newValue) {
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this.id = newValue || UniqueComponentId();
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},
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modelValue() {
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this.isModelValueChanged = true;
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},
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options() {
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this.autoUpdateModel();
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}
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},
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mounted() {
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this.id = this.id || UniqueComponentId();
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this.autoUpdateModel();
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},
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updated() {
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if (this.overlayVisible && this.isModelValueChanged) {
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this.scrollInView(this.findSelectedOptionIndex());
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}
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this.isModelValueChanged = false;
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},
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beforeUnmount() {
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this.unbindOutsideClickListener();
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this.unbindResizeListener();
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if (this.scrollHandler) {
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this.scrollHandler.destroy();
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this.scrollHandler = null;
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}
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if (this.overlay) {
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ZIndexUtils.clear(this.overlay);
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this.overlay = null;
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}
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},
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methods: {
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getOptionIndex(index, fn) {
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return this.virtualScrollerDisabled ? index : fn && fn(index)['index'];
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},
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getOptionLabel(option) {
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return this.optionLabel ? ObjectUtils.resolveFieldData(option, this.optionLabel) : option;
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},
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getOptionValue(option) {
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return this.optionValue ? ObjectUtils.resolveFieldData(option, this.optionValue) : option;
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},
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getOptionRenderKey(option, index) {
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return (this.dataKey ? ObjectUtils.resolveFieldData(option, this.dataKey) : this.getOptionLabel(option)) + '_' + index;
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},
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getPTOptions(option, itemOptions, index, key) {
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return this.ptm(key, {
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context: {
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selected: this.isSelected(option),
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focused: this.focusedOptionIndex === this.getOptionIndex(index, itemOptions),
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disabled: this.isOptionDisabled(option)
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}
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});
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},
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isOptionDisabled(option) {
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return this.optionDisabled ? ObjectUtils.resolveFieldData(option, this.optionDisabled) : false;
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},
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isOptionGroup(option) {
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return this.optionGroupLabel && option.optionGroup && option.group;
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},
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getOptionGroupLabel(optionGroup) {
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return ObjectUtils.resolveFieldData(optionGroup, this.optionGroupLabel);
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},
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getOptionGroupChildren(optionGroup) {
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return ObjectUtils.resolveFieldData(optionGroup, this.optionGroupChildren);
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},
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getAriaPosInset(index) {
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return (this.optionGroupLabel ? index - this.visibleOptions.slice(0, index).filter((option) => this.isOptionGroup(option)).length : index) + 1;
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},
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show(isFocus) {
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this.$emit('before-show');
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this.overlayVisible = true;
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this.focusedOptionIndex = this.focusedOptionIndex !== -1 ? this.focusedOptionIndex : this.autoOptionFocus ? this.findFirstFocusedOptionIndex() : -1;
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isFocus && DomHandler.focus(this.$refs.focusInput);
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},
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hide(isFocus) {
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const _hide = () => {
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this.$emit('before-hide');
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this.overlayVisible = false;
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this.focusedOptionIndex = -1;
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this.searchValue = '';
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this.resetFilterOnHide && (this.filterValue = null);
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isFocus && DomHandler.focus(this.$refs.focusInput);
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};
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setTimeout(() => {
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_hide();
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}, 0); // For ScreenReaders
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},
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onFocus(event) {
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if (this.disabled) {
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// For ScreenReaders
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return;
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}
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this.focused = true;
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this.focusedOptionIndex = this.focusedOptionIndex !== -1 ? this.focusedOptionIndex : this.overlayVisible && this.autoOptionFocus ? this.findFirstFocusedOptionIndex() : -1;
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this.overlayVisible && this.scrollInView(this.focusedOptionIndex);
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this.$emit('focus', event);
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},
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onBlur(event) {
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this.focused = false;
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this.focusedOptionIndex = -1;
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this.searchValue = '';
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this.$emit('blur', event);
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},
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onKeyDown(event) {
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if (this.disabled) {
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event.preventDefault();
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return;
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}
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const metaKey = event.metaKey || event.ctrlKey;
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switch (event.code) {
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case 'ArrowDown':
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this.onArrowDownKey(event);
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break;
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case 'ArrowUp':
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this.onArrowUpKey(event, this.editable);
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break;
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case 'ArrowLeft':
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case 'ArrowRight':
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this.onArrowLeftKey(event, this.editable);
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break;
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case 'Home':
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this.onHomeKey(event, this.editable);
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break;
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case 'End':
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this.onEndKey(event, this.editable);
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break;
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case 'PageDown':
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this.onPageDownKey(event);
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break;
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case 'PageUp':
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this.onPageUpKey(event);
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break;
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case 'Space':
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this.onSpaceKey(event, this.editable);
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break;
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case 'Enter':
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case 'NumpadEnter':
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this.onEnterKey(event);
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break;
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case 'Escape':
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this.onEscapeKey(event);
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break;
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case 'Tab':
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this.onTabKey(event);
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break;
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case 'Backspace':
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this.onBackspaceKey(event, this.editable);
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break;
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case 'ShiftLeft':
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case 'ShiftRight':
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//NOOP
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break;
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default:
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if (!metaKey && ObjectUtils.isPrintableCharacter(event.key)) {
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!this.overlayVisible && this.show();
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!this.editable && this.searchOptions(event, event.key);
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}
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break;
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}
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},
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onEditableInput(event) {
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const value = event.target.value;
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this.searchValue = '';
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const matched = this.searchOptions(event, value);
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!matched && (this.focusedOptionIndex = -1);
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this.updateModel(event, value);
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},
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onContainerClick(event) {
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if (this.disabled || this.loading) {
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return;
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}
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if ((this.$refs.clearIcon && this.$refs.clearIcon.isSameNode(event.target)) || event.target.tagName === 'INPUT') {
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return;
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} else if (!this.overlay || !this.overlay.contains(event.target)) {
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this.overlayVisible ? this.hide(true) : this.show(true);
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}
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},
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onClearClick(event) {
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this.updateModel(event, null);
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},
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onFirstHiddenFocus(event) {
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const focusableEl = event.relatedTarget === this.$refs.focusInput ? DomHandler.getFirstFocusableElement(this.overlay, ':not([data-p-hidden-focusable="true"])') : this.$refs.focusInput;
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DomHandler.focus(focusableEl);
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},
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onLastHiddenFocus(event) {
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const focusableEl = event.relatedTarget === this.$refs.focusInput ? DomHandler.getLastFocusableElement(this.overlay, ':not([data-p-hidden-focusable="true"])') : this.$refs.focusInput;
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DomHandler.focus(focusableEl);
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},
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onOptionSelect(event, option, isHide = true) {
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const value = this.getOptionValue(option);
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this.updateModel(event, value);
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isHide && this.hide(true);
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},
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onOptionMouseMove(event, index) {
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if (this.focusOnHover) {
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this.changeFocusedOptionIndex(event, index);
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}
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},
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onFilterChange(event) {
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const value = event.target.value;
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this.filterValue = value;
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this.focusedOptionIndex = -1;
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this.$emit('filter', { originalEvent: event, value });
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!this.virtualScrollerDisabled && this.virtualScroller.scrollToIndex(0);
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},
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onFilterKeyDown(event) {
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switch (event.code) {
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case 'ArrowDown':
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this.onArrowDownKey(event);
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break;
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case 'ArrowUp':
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this.onArrowUpKey(event, true);
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|
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.$primevue.config.zIndex.overlay);
|
|
|
|
DomHandler.addStyles(el, { position: 'absolute', top: '0', left: '0' });
|
|
this.alignOverlay();
|
|
this.scrollInView();
|
|
|
|
this.autoFilterFocus && DomHandler.focus(this.$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([data-p-hidden-focusable="true"])').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 this.isValidOption(option) && 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: {
|
|
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 groupChildren = this.getOptionGroupChildren(group);
|
|
const filteredItems = groupChildren.filter((item) => filteredOptions.includes(item));
|
|
|
|
if (filteredItems.length > 0) filtered.push({ ...group, [typeof this.optionGroupChildren === 'string' ? this.optionGroupChildren : '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;
|
|
},
|
|
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,
|
|
TimesIcon: TimesIcon,
|
|
ChevronDownIcon: ChevronDownIcon,
|
|
SpinnerIcon: SpinnerIcon,
|
|
FilterIcon: FilterIcon
|
|
}
|
|
};
|
|
</script>
|