JoyD/AutoRobot/Windows/Robot/Web/src/DockLayout/TabPage.vue

<template>
  <div class="tab-page">
    <!-- 当tabs为空时，不显示标签栏，直接渲染slot内容 -->
    <div v-if="tabs.length > 0" class="tab-header">
      <div 
        v-for="(tab, index) in tabs" 
        :key="tab.id"
        :class="['tab-item', { 'active': activeTabIndex === index }]"
        @click="setActiveTab(index)"
      >
        {{ tab.title }}
        <span 
          v-if="tab.closable" 
          class="tab-close"
          @click.stop="closeTab(tab.id)"
        >×</span>
      </div>
      <div class="tab-placeholder"></div>
    </div>
    <!-- Tab页内容区域 -->
    <div class="tab-content">
      <!-- 当有tabs时，渲染tabs内容 -->
      <template v-if="tabs.length > 0">
        <div v-for="(tab, index) in tabs" :key="tab.id" :class="['tab-panel', { 'active': activeTabIndex === index }]">
          <component :is="tab.component" v-bind="tab.props"></component>
        </div>
      </template>
      <!-- 当没有tabs或tabs为空时，渲染slot内容 -->
      <template v-else>
        <slot></slot>
      </template>
    </div>
  </div>
</template>

<script setup>
import { defineProps, defineEmits, ref } from 'vue'

const props = defineProps({
  id: { type: String, required: true },
  title: { type: String, default: '标签页' },
  // 可选的标签页数组配置
  tabs: {
    type: Array,
    default: () => []
  },
  // 默认激活的标签页索引
  activeIndex: {
    type: Number,
    default: 0
  }
})

const emit = defineEmits(['tabChange', 'tabClose', 'tabAdd'])

// 当前激活的标签页索引
const activeTabIndex = ref(props.activeIndex)

// 设置激活的标签页
const setActiveTab = (index) => {
  if (index >= 0 && index < props.tabs.length) {
    activeTabIndex.value = index
    emit('tabChange', { index, tab: props.tabs[index] })
  }
}

// 关闭标签页
const closeTab = (tabId) => {
  emit('tabClose', { id: tabId })
}
</script>

<style scoped>
.tab-page {
  display: flex;
  flex-direction: column;
  width: 100%;
  height: 100%;
  background: #ffffff;
  border: 1px solid #c7d2ea;
  border-radius: 0;
  overflow: hidden;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* 标签栏样式 - 模仿Windows Forms */
.tab-header {
  display: flex;
  flex-wrap: nowrap;
  height: 28px;
  background: #f0f0f0;
  border-bottom: 1px solid #c7d2ea;
  overflow-x: auto;
  overflow-y: hidden;
  padding-top: 2px;
}

.tab-item {
  display: flex;
  align-items: center;
  height: 26px;
  padding: 0 16px;
  margin-left: 1px;
  background: #e8e8e8;
  border: 1px solid #c7d2ea;
  border-bottom-color: #c7d2ea;
  border-radius: 3px 3px 0 0;
  cursor: pointer;
  white-space: nowrap;
  color: #333;
  font-size: 12px;
  user-select: none;
}

.tab-item.active {
  background: #ffffff;
  border-bottom-color: #ffffff;
  font-weight: 500;
}

.tab-item:hover {
  background: #f5f5f5;
}

.tab-item.active:hover {
  background: #ffffff;
}

.tab-close {
  margin-left: 8px;
  font-size: 16px;
  color: #666;
  cursor: pointer;
  padding: 0 2px;
  border-radius: 1px;
}

.tab-close:hover {
  background: #ff6b6b;
  color: white;
}

.tab-placeholder {
  flex: 1;
  background: transparent;
  height: 26px;
  margin-left: 1px;
  border: 1px solid transparent;
  border-bottom-color: #c7d2ea;
}

/* 内容区域样式 */
.tab-content {
  flex: 1;
  position: relative;
  overflow: hidden;
}

.tab-panel {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  padding: 12px;
  overflow: auto;
  background: #ffffff;
  display: none;
}

.tab-panel.active {
  display: block;
}

.tab-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  color: #999;
  font-size: 14px;
}

/* 滚动条样式 */
.tab-header::-webkit-scrollbar {
  height: 6px;
}

.tab-header::-webkit-scrollbar-track {
  background: #f0f0f0;
}

.tab-header::-webkit-scrollbar-thumb {
  background: #c7d2ea;
  border-radius: 3px;
}

.tab-panel::-webkit-scrollbar {
  width: 12px;
  height: 12px;
}

.tab-panel::-webkit-scrollbar-track {
  background: #f5f7fb;
  border-left: 1px solid #c7d2ea;
}

.tab-panel::-webkit-scrollbar-thumb {
  background: linear-gradient(to bottom, #d0d6ea, #c0c7e0);
  border: 1px solid #b0b6d6;
  border-radius: 6px;
}

.tab-panel::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(to bottom, #c1c7e2, #b2b8d9);
}
</style>