<template>
    <main class="site-content" :class="{ 'site-content--tabs': $route.meta.isTab }">
        <!-- 主入口标签页 s -->
        <el-tabs v-if="$route.meta.isTab" v-model="mainTabsActiveName" :closable="true" @tab-click="selectedTabHandle" @tab-remove="removeTabHandle">
            <el-dropdown class="site-tabs__tools" :show-timeout="0">
                <i class="el-icon-arrow-down el-icon--right"></i>
                <el-dropdown-menu slot="dropdown">
                    <el-dropdown-item @click.native="tabsCloseCurrentHandle">关闭当前标签页</el-dropdown-item>
                    <el-dropdown-item @click.native="tabsCloseOtherHandle">关闭其它标签页</el-dropdown-item>
                    <el-dropdown-item @click.native="tabsCloseAllHandle">关闭全部标签页</el-dropdown-item>
                    <el-dropdown-item @click.native="refresh()">刷新当前标签页</el-dropdown-item>
                </el-dropdown-menu>
            </el-dropdown>
            <el-tab-pane v-for="item in mainTabs" :key="item.name" :label="item.title" :name="item.name">
                <el-card :body-style="siteContentViewHeight">
                    <iframe v-if="item.type === 'iframe'" :src="item.iframeUrl" width="100%" height="100%" frameborder="0" scrolling="yes">
                    </iframe>
                    <keep-alive v-else>
                        <router-view v-if="item.name === mainTabsActiveName" />
                    </keep-alive>
                </el-card>
            </el-tab-pane>
        </el-tabs>
        <!-- 主入口标签页 e -->
        <el-card v-else :body-style="siteContentViewHeight">
            <keep-alive>
                <router-view />
            </keep-alive>
        </el-card>
    </main>
</template>

<script>
import { isURL } from '@/utils/validate'
export default {
    inject: ['refresh'],
    data() {
        return {
        }
    },
    computed: {
        documentClientHeight: {
            get() { return this.$store.state.common.documentClientHeight }
        },
        menuActiveName: {
            get() { return this.$store.state.common.menuActiveName },
            set(val) { this.$store.commit('common/updateMenuActiveName', val) }
        },
        mainTabs: {
            get() { return this.$store.state.common.mainTabs },
            set(val) { this.$store.commit('common/updateMainTabs', val) }
        },
        mainTabsActiveName: {
            get() { return this.$store.state.common.mainTabsActiveName },
            set(val) { this.$store.commit('common/updateMainTabsActiveName', val) }
        },
        siteContentViewHeight() {
            var height = this.documentClientHeight - 50 - 30 - 2
            if (this.$route.meta.isTab) {
                height -= 40
                return isURL(this.$route.meta.iframeUrl) ? { height: height + 'px' } : { minHeight: height + 'px' }
            }
            return { minHeight: height + 'px' }
        }
    },
    methods: {
        // tabs, 选中tab
        selectedTabHandle(tab) {
            tab = this.mainTabs.filter(item => item.name === tab.name)
            if (tab.length >= 1) {
                this.$router.push({ name: tab[0].name, query: tab[0].query, params: tab[0].params })
            }
        },
        // tabs, 删除tab
        removeTabHandle(tabName) {
            this.$store.commit('common/removeTab', tabName)
        },
        // tabs, 关闭当前
        tabsCloseCurrentHandle() {
            this.removeTabHandle(this.mainTabsActiveName)
        },
        // tabs, 关闭其它
        tabsCloseOtherHandle() {
            this.mainTabs = this.mainTabs.filter(item => item.name === this.mainTabsActiveName)
        },
        // tabs, 关闭全部
        tabsCloseAllHandle() {
            this.mainTabs = []
            this.menuActiveName = ''
            this.$router.push({ name: 'home' })
        },
        // tabs, 刷新当前
        tabsRefreshCurrentHandle() {
            var tab = this.$route
            this.removeTabHandle(tab.name)
            this.$nextTick(() => {
                this.$router.push({ name: tab.name, query: tab.query, params: tab.params })
            })
        }
    }
}
</script>

