<!--
 * @Descripttion: 图标选择器组件
-->

<template>
	<div class="x-icon-select">
		<div class="x-icon-select__wrapper" :class="{'hasValue':value}" @click="open">
			<el-input :prefix-icon="value||'el-icon-plus'" v-model="value" :disabled="disabled" readonly></el-input>
		</div>
		<el-dialog title="图标选择器" v-model="dialogVisible" :width="760" destroy-on-close append-to-body>
			<div class="x-icon-select__dialog" style="margin: -20px 0 -10px 0;">
				<el-form :rules="{}">
					<el-form-item prop="searchText">
						<el-input class="x-icon-select__search-input" prefix-icon="el-icon-search" v-model="searchText" placeholder="搜索" size="large" clearable/>
					</el-form-item>
				</el-form>
				<el-tabs>
					<el-tab-pane  v-for="item in data" :key="item.name" lazy>
						<template #label>
							{{item.name}} <el-tag size="small" type="info">{{item.icons.length}}</el-tag>
						</template>
						<div class="x-icon-select__list">
							<el-scrollbar>
								<ul @click="selectIcon">
									<el-empty v-if="item.icons.length==0" :image-size="100" description="未查询到相关图标" />
									<li v-for="icon in item.icons" :key="icon">
										<span :data-icon="icon"></span>
										<el-icon><component :is="icon" /></el-icon>
									</li>
								</ul>
							</el-scrollbar>
						</div>
					</el-tab-pane>
				</el-tabs>
			</div>
			<template #footer>
				<el-button @click="clear" text>清除</el-button>
				<el-button @click="dialogVisible=false">取消</el-button>
			</template>
		</el-dialog>
	</div>
</template>

<script>
	import config from "@/config/iconSelect"

	export default {
		props: {
			modelValue: { type: String, default: "" },
			disabled: { type: Boolean, default: false },
		},
		data() {
			return {
				value: "",
				dialogVisible: false,
				data: [],
				searchText: ""
			}
		},
		watch:{
			modelValue(val){
				this.value = val
			},
			value(val){
				this.$emit('update:modelValue', val)
			},
			searchText(val){
				this.search(val)
			}
		},
		mounted() {
		    this.value = this.modelValue
			this.data.push(...config.icons)
		},
		methods: {
			open(){
				if(this.disabled){
					return false
				}
				this.dialogVisible = true
			},
			selectIcon(e){
				if(e.target.tagName != 'SPAN'){
					return false
				}
				this.value = e.target.dataset.icon
				this.dialogVisible = false
			},
			clear(){
				this.value = ""
				this.dialogVisible = false
			},
			search(text){
				if(text){
					const filterData = JSON.parse(JSON.stringify(config.icons))
					filterData.forEach(t => {
						t.icons = t.icons.filter(n => n.includes(text))
					})
					this.data = filterData
				}else{
					this.data = JSON.parse(JSON.stringify(config.icons))
				}
			}
		}
	}
</script>

<style scoped>
	.x-icon-select {display: inline-flex;}
	.x-icon-select__wrapper {cursor: pointer;display: inline-flex;}
	.x-icon-select__wrapper:deep(.el-input__wrapper).is-focus {box-shadow: 0 0 0 1px var(--el-input-hover-border-color) inset;}
	.x-icon-select__wrapper:deep(.el-input__inner) {flex-grow:0;width: 0;}
	.x-icon-select__wrapper:deep(.el-input__icon) {margin: 0;font-size: 16px;}
	.x-icon-select__wrapper.hasValue:deep(.el-input__icon) {color: var(--el-text-color-regular);}

	.x-icon-select__list {height:270px;overflow: auto;}
	.x-icon-select__list ul {}
	.x-icon-select__list li {display: inline-block;width:80px;height:80px;margin:5px;vertical-align: top;transition: all 0.1s;border-radius: 4px;position: relative;}
	.x-icon-select__list li span {position: absolute;top:0;left:0;right:0;bottom:0;z-index: 1;cursor: pointer;}
	.x-icon-select__list li i {display: inline-block;width: 100%;height:100%;font-size: 26px;color: #6d7882;display: flex;justify-content: center;align-items: center;border-radius: 4px;}
	.x-icon-select__list li:hover {box-shadow: 0 0 1px 4px var(--el-color-primary);background: var(--el-color-primary-light-9);}
	.x-icon-select__list li:hover i {color: var(--el-color-primary);}
</style>
