src/views/dashboard/controls/Tab.vue

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limitations under the License. -->
<template>
  <div class="flex-h tab-header">
    <div class="tabs">
      <span
        v-for="(child, idx) in data.children || []"
        :key="idx"
        :class="{ active: activeTabIndex === idx }"
        @click="clickTabs($event, idx)"
      >
        <input
          @click="editTabName($event, idx)"
          v-model="child.name"
          placeholder="Please input"
          class="tab-name"
          :readonly="isNaN(editTabIndex)"
          :class="{ view: isNaN(editTabIndex) }"
        />
        <Icon
          v-show="activeTabIndex === idx"
          size="sm"
          iconName="cancel"
          @click="deleteTabItem(idx)"
        />
      </span>
      <span class="tab-icons">
        <el-tooltip effect="dark" content="Add tab items" placement="bottom">
          <i @click="addTabItem">
            <Icon size="middle" iconName="add" />
          </i>
        </el-tooltip>
        <el-tooltip effect="dark" content="Add widgets" placement="bottom">
          <i @click="addTabWidget">
            <Icon size="middle" iconName="playlist_add" />
          </i>
        </el-tooltip>
      </span>
    </div>
    <div class="operations">
      <Icon size="sm" iconName="clearclose" @click="removeTab" />
    </div>
  </div>
  <div class="tab-layout">
    <grid-layout
      v-if="state.layout.length"
      v-model:layout="state.layout"
      :col-num="24"
      :row-height="10"
      :is-draggable="true"
      :is-resizable="true"
      @layout-updated="layoutUpdatedEvent"
    >
      <grid-item
        v-for="item in state.layout"
        :x="item.x"
        :y="item.y"
        :w="item.w"
        :h="item.h"
        :i="item.i"
        :key="item.i"
        @click="clickTabGrid($event, item)"
        :class="{ active: activeTabWidget === item.i }"
      >
        <Widget
          :data="item"
          :activeIndex="`${data.i}-${activeTabIndex}-${item.i}`"
        />
      </grid-item>
    </grid-layout>
    <div class="no-data-tips" v-else>Please add widgets.</div>
  </div>
</template>
<script lang="ts" setup>
import { defineProps, reactive, ref, watch } from "vue";
import type { PropType } from "vue";
import Widget from "./Widget.vue";
import { LayoutConfig } from "@/types/dashboard";
import { useDashboardStore } from "@/store/modules/dashboard";

const props = defineProps({
  data: {
    type: Object as PropType<LayoutConfig>,
    default: () => ({ children: [] }),
  },
  active: { type: Boolean, default: false },
});
const dashboardStore = useDashboardStore();
const activeTabIndex = ref<number>(0);
const activeTabWidget = ref<string>("0");
const editTabIndex = ref<number>(NaN); // edit tab item name
const state = reactive<{
  layout: LayoutConfig[];
}>({
  layout:
    dashboardStore.layout[props.data.i].children[activeTabIndex.value].children,
});

function layoutUpdatedEvent(newLayout: LayoutConfig[]) {
  state.layout = newLayout;
}
function clickTabs(e: Event, idx: number) {
  e.stopPropagation();
  activeTabIndex.value = idx;
}
function removeTab() {
  dashboardStore.removeControls(props.data);
}
function deleteTabItem(idx: number) {
  dashboardStore.removeTabItem(props.data, idx);
}
function addTabItem() {
  dashboardStore.addTabItem(props.data);
}
function editTabName(el: Event, index: number) {
  el.stopPropagation();
  editTabIndex.value = index;
}
function handleClick(el: any) {
  if (el.target.className === "tab-name") {
    return;
  }
  editTabIndex.value = NaN;
}
function addTabWidget(e: Event) {
  e.stopPropagation();
  activeTabWidget.value = String(state.layout.length);
  dashboardStore.addTabWidget(activeTabIndex.value);
  dashboardStore.activeGridItem(
    `${props.data.i}-${activeTabIndex.value}-${activeTabWidget.value}`
  );
}
function clickTabGrid(e: Event, item: LayoutConfig) {
  e.stopPropagation();
  activeTabWidget.value = item.i;
  dashboardStore.activeGridItem(
    `${props.data.i}-${activeTabIndex.value}-${item.i}`
  );
}
document.body.addEventListener("click", handleClick, false);
watch(
  () =>
    dashboardStore.layout[props.data.i].children[activeTabIndex.value].children,
  (data) => {
    state.layout = data;
  }
);
watch(
  () => dashboardStore.activedGridItem,
  (data) => {
    const i = data.split("-");
    if (i[0] === props.data.i && activeTabIndex.value === Number(i[1])) {
      activeTabWidget.value = i[2];
    } else {
      activeTabWidget.value = "";
    }
  }
);
</script>
<style lang="scss" scoped>
.tabs {
  height: 40px;
  color: #ccc;

  span {
    display: inline-block;
    padding: 0 10px;
    margin: 0 10px;
    height: 40px;
    line-height: 40px;
    cursor: pointer;
  }

  .tab-name {
    max-width: 80px;
    height: 20px;
    line-height: 20px;
    outline: none;
    color: #333;
    font-style: normal;
    margin-right: 5px;
  }

  .tab-icons {
    color: #333;

    i {
      margin-right: 3px;
    }
  }

  .view {
    cursor: pointer;
  }

  input.tab-name {
    border: 0;
  }

  span.active {
    border-bottom: 1px solid #409eff;
    color: #409eff;
  }
}

.el-input__inner {
  border: none !important;
}

.operations {
  color: #aaa;
  cursor: pointer;
  height: 40px;
  line-height: 40px;
  padding-right: 10px;
}

.tab-header {
  justify-content: space-between;
  width: 100%;
  border-bottom: 1px solid #eee;
}

.vue-grid-layout {
  background: #f7f9fa;
  height: auto !important;
}

.vue-grid-item:not(.vue-grid-placeholder) {
  background: #fff;
  box-shadow: 0px 1px 4px 0px #00000029;
  border-radius: 5px;
}

.tab-layout {
  height: calc(100% - 55px);
  overflow: auto;
}

.vue-grid-item.active {
  border: 1px solid #409eff;
}

.no-data-tips {
  width: 100%;
  text-align: center;
  font-size: 14px;
  padding-top: 30px;
  color: #888;
}
</style>