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<template>
<el-breadcrumb class="app-breadcrumb" :separator="separator">
<transition-group name="breadcrumb">
<el-breadcrumb-item v-for="(item, index) in breadcrumbs" :key="item.tag">
<span v-if="index === breadcrumbs.length - 1" class="no-redirect"
>{{ item.title }}
<span v-if="isShowSelected(item)">
<dropdown trigger="click" @on-click="selectNavData($event, item)">
<span class="app-breadcrumb-selected">
<i class="el-icon-caret-bottom"></i>
</span>
<dropdown-menu slot="list">
<dropdown-item
v-for="dataitem in getPreNavData(item)"
:name="dataitem.srfkey"
:key="dataitem.srfkey"
>
<span :class="{ curselected: isCurSelected(item, dataitem) }">{{
dataitem.srfmajortext
}}</span>
</dropdown-item>
</dropdown-menu>
</dropdown>
</span>
</span>
<a v-else @click.prevent="handleLink(item)">{{ item.title }}</a>
</el-breadcrumb-item>
</transition-group>
</el-breadcrumb>
</template>
<script lang="ts">
import { Component, Vue, Watch, Prop } from 'vue-property-decorator';
import { Subscription } from 'rxjs';
import { LogUtil } from 'ibiz-core';
import { NavDataService } from 'ibiz-vue';
import { appConfig } from '@/config/appConfig';
import { Environment } from '@/environments/environment';
@Component({})
export default class Breadcrumb extends Vue {
/**
* 面包屑列表
*
* @memberof Breadcrumb
*/
private breadcrumbs: Array<any> = [];
/**
* 面包屑分隔符
*
* @memberof Breadcrumb
*/
private separator: string = appConfig.breadcrumbSeparator;
/**
* 导航服务
*
* @memberof Breadcrumb
*/
private navDataService = NavDataService.getInstance(this.$store);
/**
* 首页tag
*
* @memberof Breadcrumb
*/
@Prop() public indexViewTag?: string;
/**
* 监听路由
*
* @memberof Breadcrumb
*/
@Watch('navDataService.navDataStack')
private onNavDataStackChange(data: any) {
this.getBreadcrumb();
}
/**
* 导航服务事件
*
* @public
* @type {(Subscription | undefined)}
* @memberof Dev
*/
public serviceStateEvent: Subscription | undefined;
/**
* vue 生命周期
*
* @memberof Breadcrumb
*/
created() {
this.getBreadcrumb();
}
/**
* 获取面包屑数据
*
* @memberof Breadcrumb
*/
private getBreadcrumb() {
const navData: Array<any> = this.navDataService.getNavData();
if (navData && navData.length > 0) {
this.breadcrumbs = navData.filter((item: any) => {
return item.viewmode;
});
} else {
this.breadcrumbs = [];
}
this.$forceUpdate();
}
/**
* 获取面包屑指定元素前一条数据
*
* @memberof Breadcrumb
*/
private getPreNavData(item: any) {
let preNavData: any = this.navDataService.getPreNavData(item.tag);
return preNavData?.data;
}
/**
* 判断是否为当前选中项
*
* @memberof Breadcrumb
*/
private isCurSelected(item: any, singleItem: any) {
return item.key === singleItem.srfkey;
}
/**
* 面包屑点击行为
*
* @memberof Breadcrumb
*/
private handleLink(item: any) {
if (item && Object.is(item.tag, this.indexViewTag)) {
this.$router.push(window.sessionStorage.getItem(Environment.AppName) as string).catch(err => {
LogUtil.warn(err);
});
this.navDataService.removeNavDataFrist();
} else {
this.$router.push(item.path).catch(err => {
LogUtil.warn(err);
});
this.navDataService.skipNavData(item.tag);
}
}
/**
* 切换导航行为
*
* @memberof Breadcrumb
*/
private selectNavData($event: any, item: any) {
this.navDataService.serviceState.next({ action: 'viewrefresh', name: item.tag, data: $event });
this.$forceUpdate();
}
/**
* 是否显示下拉列表
*
* @memberof Breadcrumb
*/
public isShowSelected(item: any) {
if (!item || !item.tag) {
return false;
}
const preElementData: any = this.getPreNavData(item);
return preElementData && Array.isArray(preElementData) ? true : false;
}
/**
* 组件销毁
*
* @memberof Breadcrumb
*/
public destroyed() {
if (this.serviceStateEvent) {
this.serviceStateEvent.unsubscribe();
}
}
}
</script>
<style lang='less'>
@import './app-breadcrumb.less';
</style>