Base MultiSelect Implementation
cagataycivici
parent
38b174ff64
commit
09ebaa9b73
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@ -48,7 +48,7 @@
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.p-multiselect.p-disabled .p-multiselect-trigger,
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.p-multiselect.p-disabled .p-multiselect-label {
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cursor: auto
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cursor: auto;
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}
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.p-multiselect-panel {
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@ -69,6 +69,8 @@
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.p-multiselect-panel .p-multiselect-list {
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border: 0 none;
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margin: 0;
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list-style-type: none;
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}
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.p-multiselect-panel .p-multiselect-item {
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@ -88,7 +90,7 @@
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vertical-align: middle;
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}
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.p-multiselect-panel .p-multiselect-item label {
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.p-multiselect-panel .p-multiselect-item > span {
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display: inline-block;
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vertical-align: middle;
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}
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@ -1,5 +1,5 @@
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<template>
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<div :class="containerClass" @click="onClick">
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<div ref="container" :class="containerClass" @click="onClick">
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<div class="p-hidden-accessible">
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<input ref="focusInput" type="text" role="listbox" readonly :disabled="disabled" @focus="onFocus" @blur="onBlur" @keydown="onKeyDown" :tabindex="tabindex"/>
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</div>
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@ -9,10 +9,32 @@
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<div class="p-multiselect-trigger">
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<span class="p-multiselect-trigger-icon pi pi-chevron-down p-c"></span>
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</div>
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<transition name="p-input-overlay" @enter="onOverlayEnter" @leave="onOverlayLeave">
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<div ref="overlay" class="p-multiselect-panel" v-if="overlayVisible">
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<div ref="itemsWrapper" class="p-multiselect-items-wrapper" :style="{'max-height': scrollHeight}">
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<ul class="p-multiselect-items p-multiselect-list p-component">
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<li v-for="(option, i) of visibleOptions" :class="['p-multiselect-item', {'p-highlight': isSelected(option), 'p-disabled': isOptionDisabled(option)}]"
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:aria-label="getOptionLabel(option)" :key="getOptionLabel(option)" @click="onOptionSelect($event, option)" @keydown="onOptionKeyDown($event, option)" :tabindex="tabindex||'0'">
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<div class="p-checkbox p-component">
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<div :class="['p-checkbox-box p-component', {'p-highlight': isSelected(option)}]">
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<span :class="['p-checkbox-icon p-c', {'pi pi-check': isSelected(option)}]"></span>
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</div>
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</div>
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<slot name="option" :option="option" :index="i">
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<span>{{getOptionLabel(option)}}</span>
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</slot>
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</li>
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</ul>
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</div>
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</div>
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</transition>
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</div>
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</template>
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<script>
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import ObjectUtils from '../utils/ObjectUtils';
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import DomHandler from '../utils/DomHandler';
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export default {
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props: {
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value: null,
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@ -58,6 +80,21 @@ export default {
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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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isSelected(option) {
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let selected = false;
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let optionValue = this.getOptionValue(option);
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if (this.value) {
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for (let val of this.value) {
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if (ObjectUtils.equals(val, optionValue, this.dataKey)) {
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selected = true;
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break;
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}
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}
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}
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return selected;
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},
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onFocus() {
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this.focused = true;
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},
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@ -65,14 +102,17 @@ export default {
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this.focused = false;
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},
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onClick() {
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if (!this.$refs.overlay || !this.$refs.overlay.contains(event.target)) {
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this.overlayVisible = !this.overlayVisible;
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this.$refs.focusInput.focus();
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}
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},
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onKeyDown(event) {
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switch(event.which) {
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//down
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case 40:
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if (this.visibleOptions && this.overlayVisible && event.altKey) {
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this.overlayVisible = true;
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this.overlayVisible = false;
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}
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break;
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@ -88,25 +128,102 @@ export default {
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case 13:
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case 27:
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if (this.overlayVisible) {
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this.hideOverlay();
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this.overlayVisible = false;
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event.preventDefault();
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}
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break;
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//tab
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case 9:
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this.hideOverlay();
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this.overlayVisible = false;
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break;
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default:
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break;
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}
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},
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onOptionSelect(event, option) {
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if (this.disabled || this.isOptionDisabled(option)) {
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return;
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}
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let selected = this.isSelected(option);
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let valueChanged = false;
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let value = null;
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if (selected)
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value = this.value.filter(val => !ObjectUtils.equals(val, this.getOptionValue(option), this.dataKey));
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else
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value = [...this.value || [], this.getOptionValue(option)];
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this.$emit('input', value);
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this.$emit('change', {originalEvent: event, value: value});
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},
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onOptionKeyDown(event, option) {
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let listItem = event.target;
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switch(event.which) {
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//down
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case 40:
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var nextItem = this.findNextItem(listItem);
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if (nextItem) {
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nextItem.focus();
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}
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event.preventDefault();
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break;
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//up
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case 38:
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var prevItem = this.findPrevItem(listItem);
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if (prevItem) {
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prevItem.focus();
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}
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event.preventDefault();
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break;
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//enter
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case 13:
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this.onOptionSelect(event, option);
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event.preventDefault();
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break;
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default:
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break;
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}
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},
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findNextItem(item) {
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let nextItem = item.nextElementSibling;
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if (nextItem)
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return DomHandler.hasClass(nextItem, 'p-disabled') ? this.findNextItem(nextItem) : nextItem;
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else
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return null;
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},
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findPrevItem(item) {
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let prevItem = item.previousElementSibling;
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if (prevItem)
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return DomHandler.hasClass(prevItem, 'p-disabled') ? this.findPrevItem(prevItem) : prevItem;
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else
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return null;
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},
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onOverlayEnter() {
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this.alignOverlay();
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this.bindOutsideClickListener();
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},
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onOverlayLeave() {
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this.unbindOutsideClickListener();
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},
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alignOverlay() {
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DomHandler.relativePosition(this.$refs.overlay, this.$refs.container);
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},
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bindOutsideClickListener() {
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if (!this.outsideClickListener) {
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this.outsideClickListener = (event) => {
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if (this.$refs.overlay && !this.$refs.overlay.contains(event.target)) {
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this.hideOverlay();
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if (this.overlayVisible && this.$refs.overlay && !this.$refs.overlay.contains(event.target)) {
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this.overlayVisible = false;
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}
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};
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document.addEventListener('click', this.outsideClickListener);
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@ -118,10 +235,6 @@ export default {
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this.outsideClickListener = null;
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}
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},
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hideOverlay() {
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this.overlayVisible = false;
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this.unbindOutsideClickListener();
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},
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getLabelByValue(val) {
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let label = null;
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@ -174,7 +287,7 @@ export default {
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label += ',';
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}
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label += this.findLabelByValue(this.value[i]);
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label += this.getLabelByValue(this.value[i]);
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}
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}
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else {
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