开源了，有代码管理的地方，服务端搬到了阿里云，数据库在腾讯云...。启用了GZIP压缩，打包也坑，一个Echarts 2.8M（CDN了）
1.下拉树
elementui的下拉树很常用，一搜一大把，随便找了一个抄的，学习了一下改了改，多选还没试过
- 加入v-model
- 加入异步延迟加载后重新选择赋值
- 加入树的自定义属性
- 加入禁用属性的优化
- 修改width算法
<template>
<div>
<div
class="mask"
v-show="isShowSelect"
@click="isShowSelect = !isShowSelect"
></div>
<el-popover
placement="bottom-start"
:width="width"
trigger="manual"
v-model="isShowSelect"
@hide="popoverHide"
>
<el-tree
class="common-tree"
:style="style"
ref="tree"
:data="TreeData"
:props="defaultProps"
:show-checkbox="multiple"
:node-key="idKey"
:check-strictly="checkStrictly"
default-expand-all
:expand-on-click-node="false"
:check-on-click-node="multiple"
:highlight-current="true"
@node-click="handleNodeClick"
@check-change="handleCheckChange"
>
</el-tree>
<el-select
:style="selectStyle"
slot="reference"
ref="select"
:size="size"
:value="selectedData"
:multiple="multiple"
:clearable="clearable"
:collapse-tags="collapseTags"
@click.native="isShowSelect = !isShowSelect"
@remove-tag="removeSelectedNodes"
@clear="removeSelectedNode"
@change="changeSelectedNodes"
class="tree-select"
v-bind="$attrs"
>
<el-option
v-for="item in options"
:key="item.value"
:label="item.label"
:value="item.value"
>
</el-option>
</el-select>
</el-popover>
</div>
</template>
<script>
import { isArray, isArrayEmpty } from "@/utils/validate";
export default {
name: "select-tree",
props: {
// 树结构数据
data: {
type: Array,
default() {
return [];
}
},
defaultProps: {
type: Object,
default() {
return { children: "children", label: "text" };
}
},
// 配置是否可多选
multiple: {
type: Boolean,
default() {
return false;
}
},
// 配置是否可清空选择
clearable: {
type: Boolean,
default() {
return false;
}
},
// 配置多选时是否将选中值按文字的形式展示
collapseTags: {
type: Boolean,
default() {
return false;
}
},
idKey: {
type: String,
default() {
return "id";
}
},
nameKey: String,
pIdKey: String,
// 显示复选框情况下，是否严格遵循父子不互相关联
checkStrictly: {
type: Boolean,
default() {
return false;
}
},
size: {
type: String,
default() {
return "small";
}
},
width: {
type: String,
default() {
return "250px";
}
},
height: {
type: Number,
default() {
return 300;
}
},
selectedVal: {
type: [String, Number, Array],
default() {
return "";
}
}
},
data() {
return {
isShowSelect: false, // 是否显示树状选择器
options: [],
selectedData: "", // 选中的节点
style: "height:" + this.height + "px;",
selectStyle: `width:calc(${this.width});`,
checkedIds: [],
checkedData: []
};
},
mounted() {
this.initCheckedData();
},
methods: {
// 单选时点击tree节点，设置select选项
setSelectOption(node) {
let tmpMap = {};
tmpMap.value = node.key;
tmpMap.label = node.label;
this.options = [];
this.options.push(tmpMap);
this.$nextTick(() => {
this.selectedData = node.key;
});
},
// 单选，选中传进来的节点
checkSelectedNode(checkedKeys) {
var item = checkedKeys[0];
this.$refs.tree.setCurrentKey(item);
var node = this.$refs.tree.getNode(item.toString());
if (node) {
this.setSelectOption(node);
}
},
// 多选，勾选上传进来的节点
checkSelectedNodes(checkedKeys) {
this.$refs.tree.setCheckedKeys(checkedKeys);
},
// 单选，清空选中
clearSelectedNode() {
this.selectedData = "";
this.$refs.tree.setCurrentKey(null);
},
// 多选，清空所有勾选
clearSelectedNodes() {
var checkedKeys = this.$refs.tree.getCheckedKeys(); // 所有被选中的节点的 key 所组成的数组数据
for (let i = 0; i < checkedKeys.length; i++) {
this.$refs.tree.setChecked(checkedKeys[i], false);
}
},
initCheckedData() {
if (this.multiple) {
// 多选
if (!isArrayEmpty(this.checkedKeys)) {
this.checkSelectedNodes(this.checkedKeys);
} else {
this.clearSelectedNodes();
}
} else {
// 单选
if (!isArrayEmpty(this.checkedKeys)) {
this.checkSelectedNode(this.checkedKeys);
} else {
this.clearSelectedNode();
}
}
},
popoverHide() {
if (this.multiple) {
this.checkedIds = this.$refs.tree.getCheckedKeys(); // 所有被选中的节点的 key 所组成的数组数据
this.checkedData = this.$refs.tree.getCheckedNodes(); // 所有被选中的节点所组成的数组数据
} else {
this.checkedIds = this.$refs.tree.getCurrentKey();
this.checkedData = this.$refs.tree.getCurrentNode();
}
this.$emit("popoverHide", this.checkedIds, this.checkedData);
},
// 单选，节点被点击时的回调,返回被点击的节点数据
handleNodeClick(data, node) {
if (!this.multiple) {
this.setSelectOption(node);
this.isShowSelect = !this.isShowSelect;
// this.$nextTick(()=>{})
this.$emit("change", node.key);
}
},
// 多选，节点勾选状态发生变化时的回调
handleCheckChange() {
var checkedKeys = this.$refs.tree.getCheckedKeys(); // 所有被选中的节点的 key 所组成的数组数据
this.options = checkedKeys.map(item => {
var node = this.$refs.tree.getNode(item); // 所有被选中的节点对应的node
let tmpMap = {};
tmpMap.value = node.key;
tmpMap.label = node.label;
return tmpMap;
});
this.selectedData = this.options.map(item => {
return item.value;
});
this.$emit("change", this.selectedData);
},
// 多选,删除任一select选项的回调
removeSelectedNodes(val) {
this.$refs.tree.setChecked(val, false);
var node = this.$refs.tree.getNode(val);
if (!this.checkStrictly && node.childNodes.length > 0) {
this.treeToList(node).map(item => {
if (item.childNodes.length <= 0) {
this.$refs.tree.setChecked(item, false);
}
});
this.handleCheckChange();
}
this.$emit("change", this.selectedData);
},
treeToList(tree) {
var queen = [];
var out = [];
queen = queen.concat(tree);
while (queen.length) {
var first = queen.shift();
if (first.childNodes) {
queen = queen.concat(first.childNodes);
}
out.push(first);
}
return out;
},
// 单选,清空select输入框的回调
removeSelectedNode() {
this.clearSelectedNode();
this.$emit("change", this.selectedData);
},
// 选中的select选项改变的回调
changeSelectedNodes(selectedData) {
// 多选,清空select输入框时，清除树勾选
if (this.multiple && selectedData.length <= 0) {
this.clearSelectedNodes();
}
this.$emit("change", this.selectedData);
}
},
model: {
prop: "selectedVal",
event: "change"
},
computed: {
//组装Treedata
TreeData() {
if (this.data.length == 0) {
return [];
}
let { data, idKey, pIdKey, nameKey } = this;
if (!pIdKey) {
return this.data;
}
let _treedata = [];
// id: 1,label: '一级 1', children: [{
let getChildren = item => {
let thisc = data.search({ [pIdKey]: item[idKey] });
thisc.forEach(thisc_item => {
thisc_item.children = getChildren(thisc_item);
});
return thisc;
};
//得到子菜单
data.forEach(item => {
//是否有子
let c = data.search({ [pIdKey]: item[idKey] });
if (c.length != 0) {
item.children = getChildren(item);
_treedata.push(item);
}
});
this.$nextTick(() => {
this.initCheckedData();
});
return _treedata;
},
checkedKeys() {
let val = this.selectedVal;
if (!val) {
return [];
}
if (!isArray(val)) {
val = [val];
}
return val;
}
},
watch: {
isShowSelect(val) {
//如果是显示 先判断禁用状态
if (val && this.$refs.select.$children[0].disabled) {
this.isShowSelect = false;
}
// 隐藏select自带的下拉框
this.$refs.select.blur();
},
checkedKeys(val) {
if (!val) {
return;
}
if (!isArray(val)) {
val = [val];
}
// this.checkedKeys = val;
this.initCheckedData();
},
nameKey: {
handler(newName, oldName) {
this.defaultProps.label = newName;
},
immediate: true
},
width: {
handler(newName, oldName) {
this.$nextTick(() => {
this.$refs.tree.$el.style.width =
this.$refs.select.$el.offsetWidth - 24 + "px";
});
},
immediate: true
}
}
};
</script>
<style scoped>
.mask {
width: 100%;
height: 100%;
position: fixed;
top: 0;
left: 0;
opacity: 0;
z-index: 11;
}
.common-tree {
overflow: auto;
}
.tree-select {
z-index: 111;
}
</style>
使用
<el-form-item label="所在部门" prop="System_1_170">
<select-tree
:disabled="treedisabled"
v-model="form.System_1_170"
width="100%"
:data="sys2Data"
idKey="System_2_10"
pIdKey="System_2_70"
nameKey="System_2_30"
></select-tree>
</el-form-item>
2.dialog
弹出框也常用，编辑表单啥的，也单出来了，需求是表单外面不想套
两层，一个是组件，一个是方法
<template>
<el-dialog
:title="title"
:visible.sync="dialogVisible"
:close-on-click-modal="false"
:close-on-press-escape="false"
>
<div ref="component" id="component"></div>
</el-dialog>
</template>
<script>
import Vue from "vue";
export default {
data: () => ({
component: null,
title: "编辑",
dialogVisible: false,
options: {},
instance: {}
}),
mounted() {},
watch: {},
methods: {
show(opt) {
this.dialogVisible = true;
//把Dialog自己作为参数传过去
let data = Object.assign(this.instance, opt, { thisDialog: this });
this.$nextTick(() => {
//绘制内部组件
const component = Vue.extend(this.component);
this.instance = new component({
el: "#component",
data: { ...data }
});
});
return this;
},
close() {
this.dialogVisible = false;
}
}
};
</script>
<style></style>
外面再包一层
/**
* @description 打开一个window
* @param {Object} com 组件
* @param {String} title 标题
* @param {Object} data 参数
*/
export const window = function(com, title, data = {}) {
if (!com) {
return;
}
const component = Vue.extend(windowComponent);
let option = Object.assign(
{ component: com },
{ title },
{ options: { ...data } }
);
// console.log(option);
let instance = new component({
el: document.createElement("div"),
data: option
});
this.$el.appendChild(instance.$el);
return instance;
};
使用
//打开页面
sys10edit(item) {
this.getsys10edit().show({ form: { ...item } });
},
//打开角色编辑
getsys10edit() {
let edit = this.$window(sys10Edit, "编辑角色");
edit.$on("onSys10Save", (res, data) => {
res.MsRbool && this.getsys10data();
});
return edit;
},
<script>
import { System10 } from "@/api";
export default {
data() {
return {
form: {},
thisDialog: {}
};
},
//外部属性
props: {},
//内部方法
methods: {
initPage() {},
//关闭
close() {
this.thisDialog.close();
},
//保存
async onSave() {
let res = await System10.Save(this.form);
res.strMS && this.$message(res.strMS);
this.thisDialog.$emit("onSys10Save", res, this.form);
res.MsRbool && this.close();
}
},
//组件
components: {},
//初始化 异步加async await
mounted() {
this.initPage();
},
//计算属性
computed: {},
//监视
watch: {}
};
</script>