168 lines
7.0 KiB
Plaintext
168 lines
7.0 KiB
Plaintext
<template>
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<div class="aa-select" :class="{ 'is-open': open, 'is-disabled': disabled }" ref="root">
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<div class="aa-select-trigger" @click="toggle" tabindex="0">
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<template v-if="multiple">
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<span v-if="!selectedArr.length" class="placeholder">{{ placeholder }}</span>
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<span v-for="v in selectedArr" :key="v" class="tag">
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{{ labelOf(v) }}<span class="x" @click.stop="remove(v)">✕</span>
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</span>
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</template>
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<span v-else-if="selectedVal == null" class="placeholder">{{ placeholder }}</span>
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<span v-else>{{ labelOf(selectedVal) }}</span>
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<span class="caret">▾</span>
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</div>
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<div class="aa-select-panel" v-show="open">
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<div v-if="searchable" class="aa-select-search">
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<input v-model="keyword" placeholder="输入关键字" @click.stop>
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</div>
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<template v-if="groups && groups.length">
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<template v-for="g in filteredGroups">
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<div class="aa-select-group-label">{{ g.label }}</div>
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<div
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v-for="o in g.options" :key="o.value"
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class="aa-select-option"
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:class="{ 'is-selected': isSelected(o.value), 'is-disabled': o.disabled }"
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@click="choose(o)"
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>
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{{ o.label }}<span class="check">✓</span>
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</div>
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</template>
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</template>
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<template v-else>
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<div
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v-for="o in filteredOptions" :key="o.value"
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class="aa-select-option"
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:class="{ 'is-selected': isSelected(o.value), 'is-disabled': o.disabled }"
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@click="choose(o)"
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>
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{{ o.label }}<span class="check">✓</span>
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</div>
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</template>
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<div v-if="isEmpty" class="aa-select-empty">无匹配选项</div>
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</div>
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</div>
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</template>
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<script>
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export default {
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name: 'AaSelect',
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props: {
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value: { type: [String, Number, Array], default: null },
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options: { type: Array, default: () => [] }, // [{ value, label, disabled? }]
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groups: { type: Array, default: null }, // [{ label, options: [...] }]
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multiple: { type: Boolean, default: false },
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searchable: { type: Boolean, default: false },
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disabled: { type: Boolean, default: false },
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placeholder: { type: String, default: '请选择' }
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},
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data() {
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return { open: false, keyword: '' };
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},
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computed: {
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selectedArr() { return Array.isArray(this.value) ? this.value : []; },
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selectedVal() { return Array.isArray(this.value) ? null : this.value; },
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filteredOptions() {
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if (!this.searchable || !this.keyword) return this.options;
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const q = this.keyword.trim().toLowerCase();
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return this.options.filter(o => String(o.label).toLowerCase().includes(q));
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},
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filteredGroups() {
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if (!this.groups) return [];
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if (!this.searchable || !this.keyword) return this.groups;
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const q = this.keyword.trim().toLowerCase();
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return this.groups
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.map(g => ({ label: g.label, options: g.options.filter(o => String(o.label).toLowerCase().includes(q)) }))
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.filter(g => g.options.length);
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},
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isEmpty() {
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return this.groups ? this.filteredGroups.length === 0 : this.filteredOptions.length === 0;
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}
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},
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watch: {
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open(v) { if (v && this.searchable) this.keyword = ''; }
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},
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methods: {
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toggle() {
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if (this.disabled) return;
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this.open = !this.open;
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},
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isSelected(v) {
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return this.multiple ? this.selectedArr.includes(v) : this.selectedVal === v;
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},
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labelOf(v) {
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const flat = this.options.length ? this.options : (this.groups || []).flatMap(g => g.options);
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const found = flat.find(o => o.value === v);
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return found ? found.label : v;
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},
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choose(o) {
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if (o.disabled) return;
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if (this.multiple) {
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const next = this.selectedArr.includes(o.value)
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? this.selectedArr.filter(x => x !== o.value)
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: [...this.selectedArr, o.value];
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this.$emit('input', next);
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this.$emit('change', next);
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} else {
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this.$emit('input', o.value);
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this.$emit('change', o.value);
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this.open = false;
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}
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},
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remove(v) {
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this.$emit('input', this.selectedArr.filter(x => x !== v));
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this.$emit('change', this.selectedArr.filter(x => x !== v));
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},
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onDocClick(e) {
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if (this.$refs.root && !this.$refs.root.contains(e.target)) this.open = false;
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}
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},
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mounted() { document.addEventListener('click', this.onDocClick); },
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beforeDestroy() { document.removeEventListener('click', this.onDocClick); }
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};
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</script>
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<!-- 样式对齐 components.css 与 select.json 契约（触发器样式同 Input） -->
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<style>
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.aa-select { position: relative; display: inline-block; min-width: 220px; }
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.aa-select-trigger {
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display: flex; align-items: center; gap: 8px; min-height: 32px; height: auto;
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padding: 2px 28px 2px 12px; background: #fff; border: 1px solid #E8ECF1;
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border-radius: 4px; box-sizing: border-box; cursor: pointer; transition: border-color .15s, box-shadow .15s;
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font-size: 14px; color: #262626; flex-wrap: wrap; position: relative;
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}
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.aa-select-trigger:hover { border-color: #2F54EB; }
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.aa-select.is-open .aa-select-trigger { border-color: #2F54EB; box-shadow: 0 0 0 2px rgba(47,84,235,0.2); }
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.aa-select.is-disabled .aa-select-trigger { background: #F5F5F5; border-color: transparent; color: #BFBFBF; cursor: not-allowed; }
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.aa-select-trigger .placeholder { color: #767676; }
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.aa-select-trigger .caret { position: absolute; right: 10px; top: 50%; transform: translateY(-50%); transition: transform .15s; color: #6E6E6E; }
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.aa-select.is-open .caret { transform: translateY(-50%) rotate(180deg); }
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.aa-select-trigger .tag {
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display: inline-flex; align-items: center; gap: 4px; background: #F0F5FF; color: #2F54EB;
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border-radius: 2px; padding: 1px 6px; font-size: 12px; line-height: 20px;
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}
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.aa-select-trigger .tag .x { cursor: pointer; }
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.aa-select-panel {
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position: absolute; z-index: 10; top: calc(100% + 4px); left: 0; right: 0;
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background: #fff; border-radius: 4px; box-shadow: 0 4px 16px rgba(0,0,0,0.12);
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max-height: 256px; overflow-y: auto; padding: 4px 0;
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}
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.aa-select-search { padding: 6px 8px; border-bottom: 1px solid #F0F0F0; }
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.aa-select-search input { width: 100%; box-sizing: border-box; border: 1px solid #E8ECF1; border-radius: 4px; padding: 4px 8px; font-size: 13px; outline: none; }
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.aa-select-search input:focus { border-color: #2F54EB; }
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.aa-select-group-label { padding: 6px 12px; font-size: 12px; color: #6E6E6E; }
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.aa-select-option {
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display: flex; align-items: center; gap: 8px; padding: 0 12px; height: 32px; cursor: pointer;
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font-size: 14px; color: #262626; box-sizing: border-box;
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}
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.aa-select-option:hover { background: #F5F7FA; }
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.aa-select-option.is-selected { background: #F0F5FF; color: #2F54EB; }
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.aa-select-option .check { visibility: hidden; margin-left: auto; }
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.aa-select-option.is-selected .check { visibility: visible; }
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.aa-select-option.is-disabled { color: #BFBFBF; cursor: not-allowed; }
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.aa-select-empty { padding: 16px 12px; text-align: center; color: #767676; font-size: 13px; }
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</style>
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