vue带连线的树形组件（升级版）
之前开源过一个简单的https://blog.csdn.net/weixin_39168678/article/details/102457894#comments树形连线组件当时没做业务剥离而且也不能无限展开，现在优化了一下。
效果
点击查询效果，以及相关配置说明
图标下载地址
css下载地址
源码
主要是递归lineItem，稍微有点基础的应该一看就明白，不明白的按照项目路径copy过去就可以用了
lineItem
<template>
<div class="tree_item_box">
<div
class="column-start-start linkLine_default"
v-for="(item,s_index) in list"
:key="s_index"
:class="{
'linkLine_first': s_index===0&list.length>1,
'linkLine_half_top': s_index===0&&list.length===1,
'linkLine_last': (s_index===(list.length-1)&&s_index!==0),
'third_layer':!item.children,
'second_layer':item.children
}"
>
<div
class="row-flex-start basic_banner"
@click="itemClick(item)"
:class="{
'active_color': item.expand
}"
>
<div
v-if="item.children"
class="reTree_icon"
:style="{height: (size||14*1.2) +'px',width: (size||14*1.2) +'px'}"
:class="{
'reTree_default_icon': item.children.length===0,
'reTree_collapse_icon': item.expand && item.children.length>0,
'reTree_expand_icon': !item.expand && item.children.length>0,
}"
></div>
<div
class="layer_text nowrap"
:class="{
'active_color': item.expand
}"
>{
{
item.label}}</div>
</div>
<line-item
:list="item.children"
v-on="$listeners"
:size="size"
v-if="item.expand&&item.children&&item.children.length>0"
></line-item>
</div>
</div>
</template>
<script>
export default {
name: "line-item",
props: {
list: {
type: Array,
default: () => {
return [];
}
},
size: {
type: Number,
default: 14
}
},
methods: {
itemClick(item) {
item.expand = !item.expand;
this.$emit("itemClick", item);
if (!item.children) {
this.$emit("valClick", item);
}
}
}
};
</script>
<style lang='scss'>
.active_color {
color: #409EFF;
}
.reTree_box {
overflow-y: auto;
}
.reTree_icon {
width: 17px;
height: 17px;
margin-right: 10px;
}
.no_icon {
width: 17px;
height: 17px;
}
.tree_item_box {
position: relative;
width: 100%;
cursor: pointer;
}
.basic_layer {
width: 100%;
position: relative;
color: #606764;
cursor: pointer;
.layer_text {
flex: 1;
}
}
.first_vertical_line {
content: "";
position: absolute;
width: 1px;
left: 6px;
top: 17px;
background: #c3c5c8;
}
.basic_banner {
position: relative;
width: 100%;
padding-bottom: 13px;
}
.second_layer {
position: relative;
width: 100%;
cursor: pointer;
padding-left: 25px;
}
.third_layer {
position: relative;
// padding-bottom: 15px;
width: 100%;
padding-left: 40px;
color: #999999;
}
.second_layer::before {
content: "";
position: absolute;
height: 1px;
width: 16px;
left: 9px;
top: 9px;
background: #c3c5c8;
}
.third_layer::before {
content: "";
position: absolute;
height: 1px;
width: 22px;
left: 9px;
top: 9px;
background: #c3c5c8;
}
.linkLine_default::after {
content: "";
position: absolute;
height: 100%;
width: 1px;
left: 9px;
top: 0px;
background: #c3c5c8;
}
.linkLine_first::after {
content: "";
position: absolute;
/* 为了触顶 */
top: -14px;
height: calc(100% + 14px);
width: 1px;
left: 9px;
background: #c3c5c8;
}
// 上半截
.linkLine_half_top::after {
content: "";
position: absolute;
height: 24px;
top: -14px;
width: 1px;
left: 9px;
background: #c3c5c8;
}
.linkLine_last::after {
content: "";
position: absolute;
height: 9px;
width: 1px;
left: 9px;
top: 0px;
background: #c3c5c8;
}
.reTree_collapse_icon {
background: url("/static/image/reTree_collapse_.svg") no-repeat center center;
background-size: contain;
}
.reTree_default_icon {
background: url("/static/image/reTree_default_.svg") no-repeat center center;
background-size: contain;
}
.reTree_expand_icon {
background: url("/static/image/reTree_expand_.svg") no-repeat center center;
background-size: contain;
}
.reTree_focus_icon {
background: url("/static/image/reTree_focus_.svg") no-repeat center center;
background-size: contain;
}
</style>
lineTree
<template>
<div
class="content column-start-center reTree_box"
:style="{fontSize: (size||14) +'px',lineHeight:(size||14) +'px'}"
style="width:347px"
>
<div class="column-start-center basic_layer" v-for="(item,index) in formatData" :key="index">
<div
class="row-flex-start basic_banner"
:class="{
'active_color': item.expand && item.children.length>0,
}"
@click="itemClick(item)"
>
<div
class="reTree_icon"
:style="{height: (size||14*1.2 )+'px',width: (size||14*1.2) +'px'}"
:class="{
'reTree_default_icon': item.children.length===0,
'reTree_collapse_icon': item.expand && item.children.length>0,
'reTree_expand_icon': !item.expand && item.children.length>0,
}"
></div>
<div class="layer_text nowrap">{
{
item.label}}</div>
</div>
<lineItem v-if="item.expand&&item.children.length>0" v-on="$listeners" :list="item.children" :size="size"></lineItem>
</div>
</div>
</template>
<script>
import lineItem from "./lineItem.vue";
export default {
inheritAttrs: false,
props: {
pd: {
},
size: {
type: Number,
default: 14
}
},
components: {
lineItem },
data() {
return {
selectedDetail: {
},
timer: {
},
formatData: []
};
},
watch: {
pd(n, o) {
this.formatData = this.preDealData(n);
console.log(this.formatData);
}
},
created() {
console.log("lineTree create");
this.preDealData(this.pd);
},
methods: {
preDealData(list) {
list.forEach(x => {
if (!x.expand) this.$set(x, "expand", false);
if (x.children && x.children.length > 0) this.preDealData(x.children);
});
return list;
},
// 根据id展开树的具体项
expandTreeItemById(idList) {
let _this = this;
function loopTree(list) {
list.forEach(x => {
if (idList.includes(x.id)) {
_this.$set(x, "expand", true);
} else {
_this.$set(x, "expand", false);
}
if (x.children && x.children.length > 0) loopTree(x.children);
});
return list;
}
this.formatData = loopTree(this.pd);
},
itemClick(item){
item.expand=!item.expand
this.$emit('itemClick',item)
},
// 详情点击
detailClick(data) {
clearTimeout(this.timer);
this.timer = setTimeout(() => {
this.selectedDetail = data;
this.$emit("detailClick", data);
}, 300);
},
detailDoubleClick(data) {
clearTimeout(this.timer);
this.selectedDetail = data;
this.$emit("detailDoubleClick", data);
}
}
};
</script>
<style lang="scss" scoped>
.active_color{
color: #409EFF ;
}
.reTree_box {
overflow-y: auto;
}
.reTree_icon {
width: 17px;
height: 17px;
margin-right: 10px;
}
.basic_layer {
width: 100%;
position: relative;
color: #606764;
cursor: pointer;
.layer_text {
flex: 1;
}
}
.first_vertical_line {
content: "";
position: absolute;
width: 1px;
left: 6px;
top: 17px;
background: #c3c5c8;
}
.basic_banner {
position: relative;
width: 100%;
padding-bottom: 13px;
}
.second_layer {
position: relative;
width: 100%;
cursor: pointer;
padding-left: 25px;
}
.third_layer {
position: relative;
padding-bottom: 15px;
width: 100%;
padding-left: 40px;
color: #999999;
}
.second_layer::before {
content: "";
position: absolute;
height: 1px;
width: 16px;
left: 9px;
top: 9px;
background: #c3c5c8;
}
.third_layer::before {
content: "";
position: absolute;
height: 1px;
width: 20px;
left: 9px;
top: 9px;
background: #c3c5c8;
}
.linkLine_default::after {
content: "";
position: absolute;
height: 100%;
width: 1px;
left: 9px;
top: 0px;
background: #c3c5c8;
}
.linkLine_first::after {
content: "";
position: absolute;
/* 为了触顶 */
top: -14px;
height: calc(100% + 14px);
width: 1px;
left: 9px;
background: #c3c5c8;
}
// 上半截
.linkLine_half_top::after {
content: "";
position: absolute;
height: 24px;
top: -14px;
width: 1px;
left: 9px;
background: #c3c5c8;
}
.linkLine_last::after {
content: "";
position: absolute;
height: 9px;
width: 1px;
left: 9px;
top: 0px;
background: #c3c5c8;
}
.reTree_collapse_icon {
background: url("/static/image/reTree_collapse_.svg") no-repeat center center;
background-size: contain;
}
.reTree_default_icon {
background: url("/static/image/reTree_default_.svg") no-repeat center center;
background-size: contain;
}
.reTree_expand_icon {
background: url("/static/image/reTree_expand_.svg") no-repeat center center;
background-size: contain;
}
.reTree_focus_icon {
background: url("/static/image/reTree_focus_.svg") no-repeat center center;
background-size: contain;
}
</style>