126 lines
3 KiB
Vue
126 lines
3 KiB
Vue
<template>
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<div>
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<button
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:id="id"
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class="form-select text-start text-nowrap"
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type="button"
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data-bs-toggle="dropdown"
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aria-expanded="false"
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data-bs-auto-close="outside"
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>
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<slot></slot>
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</button>
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<ul ref="dropdown" class="dropdown-menu dropdown-menu-end" :aria-labelledby="id">
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<template v-if="selectAllLabel">
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<li class="dropdown-item p-0">
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<label class="form-check px-3 py-2">
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<input
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class="form-check-input ms-0 me-2"
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type="checkbox"
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value="all"
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:checked="allOptionsSelected"
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@change="toggleCheckAll()"
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/>
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<div class="form-check-label">{{ selectAllLabel }}</div>
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</label>
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</li>
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<li><hr class="dropdown-divider" /></li>
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</template>
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<li v-for="option in options" :key="option.value" class="dropdown-item p-0">
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<label class="form-check px-3 py-2 d-flex" :for="option.value">
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<input
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:id="option.value"
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v-model="internalValue"
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class="form-check-input ms-0 me-2"
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type="checkbox"
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:value="option.value"
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/>
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<div class="form-check-label">
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{{ option.name }}
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</div>
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</label>
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</li>
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</ul>
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</div>
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</template>
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<script>
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import Dropdown from "bootstrap/js/dist/dropdown";
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export default {
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name: "MultiSelect",
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props: {
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id: String,
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value: { type: Array, default: () => [] },
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options: { type: Array, default: () => [] },
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selectAllLabel: String,
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},
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emits: ["open", "update:modelValue"],
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data() {
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return {
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internalValue: [...this.value],
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};
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},
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computed: {
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allOptionsSelected() {
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return this.internalValue.length === this.options.length;
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},
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noneSelected() {
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return this.internalValue.length === 0;
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},
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},
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watch: {
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options: {
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immediate: true,
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handler(newOptions) {
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// If value is empty, set internalValue to include all options
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if (this.value.length === 0) {
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this.internalValue = newOptions.map((option) => option.value);
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} else {
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// Otherwise, keep selected options that still exist in the new options
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this.internalValue = this.internalValue.filter((value) =>
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newOptions.some((option) => option.value === value)
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);
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}
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this.$nextTick(() => {
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Dropdown.getOrCreateInstance(this.$refs.dropdown).update();
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});
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},
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},
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value: {
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immediate: true,
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handler(newValue) {
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this.internalValue =
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newValue.length === 0 && this.options.length > 0
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? this.options.map((o) => o.value)
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: [...newValue];
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},
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},
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internalValue(newValue) {
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if (this.allOptionsSelected || this.noneSelected) {
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this.$emit("update:modelValue", []);
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} else {
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this.$emit("update:modelValue", newValue);
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}
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},
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},
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mounted() {
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this.$refs.dropdown.addEventListener("show.bs.dropdown", this.open);
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},
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unmounted() {
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this.$refs.dropdown?.removeEventListener("show.bs.dropdown", this.open);
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},
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methods: {
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open() {
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this.$emit("open");
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},
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toggleCheckAll() {
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if (this.allOptionsSelected) {
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this.internalValue = [];
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} else {
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this.internalValue = this.options.map((option) => option.value);
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}
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},
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},
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};
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</script>
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