创建标签输入组件

frontend/admin/src/components/utils/tagInput.vue

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+<template lang="html">
+    <div class="input tags-wrap">
+        <div class="tags" transition="tags" v-for="tag in tagList" track-by="$index">
+            <span class="content">{{ tag }}</span><span class="del" @click="delTag($index, false)">&times;</span>
+        </div>
+        <input class="form-control tags-input" list="tagAutoCompleteList" type="text" placeholder="{{ $t('tag.hint') }}"
+               v-model="text"
+               @keyup.enter="addTag(text)" @keydown.delete="delTag(tagList.length - 1, true)">
+        <datalist id="tagAutoCompleteList">
+            <template v-for="item in tagAutoCompleteList">
+                <option value="{{ item }}"></option>
+            </template>
+        </datalist>
+    </div>
+</template>
+
+<script>
+    export default {
+        props: {
+            tagList: {
+                type: Array,
+                default: ()=>{
+                    return []
+                }
+            },
+            tagAutoCompleteList: {
+                type: Array,
+                default: ()=>{
+                    return []
+                }
+            }
+        },
+        data () {
+            return {
+                text: '',
+            }
+        },
+        methods: {
+            addTag (text) {
+                if (text.trim() != '') {
+                    var count = this.tagList.length;
+                    this.tagList.$set(count, text);
+                    this.text = ''
+                }
+            },
+            delTag (index, way) {
+                if (way) {
+                    if (index >= 0 && this.text == '') {
+                        this.tagList.splice(index, 1)
+                    }
+                } else {
+                    this.tagList.splice(index, 1)
+                }
+            }
+        }
+    }
+</script>
+
+<style>
+    .tags-wrap {
+        width: 100% !important;
+        height: 100% !important;
+        outline: none;
+    }
+
+    .tags-wrap::after {
+        content: "";
+        display: block;
+        height: 0;
+        clear: both;
+    }
+
+    .tags {
+        background-color: #4787ed;
+    }
+
+    .tags, .tags-input {
+        position: relative;
+        float: left;
+        color: #fff;
+        line-height: 28px;
+        margin: 0 4px 4px 0;
+        padding: 0 22px 0 10px;
+    }
+
+    .tags .content, .tags-input .content {
+        line-height: 28px;
+    }
+
+    .tags .del, .tags-input .del {
+        width: 22px;
+        height: 28px;
+        text-align: center;
+        cursor: pointer;
+        position: absolute;
+        top: -1px;
+        right: 0;
+    }
+
+    .tags-input {
+        color: inherit;
+        width: 15em;
+    }
+
+    .tags-enter, .tags-leave {
+        transform: scale(0.9);
+        opacity: 0;
+    }
+
+    .tags-transition {
+        transition: all .3s ease;
+    }
+</style>