315 lines
7.0 KiB
Vue
315 lines
7.0 KiB
Vue
<template>
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<div class="tab-page">
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<!-- 使用panels数组渲染标签栏 -->
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<div v-if="showTabs && panels && panels.length > 0" class="tab-header">
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<div
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v-for="(panel, index) in panels"
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:key="panel.id"
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:class="['tab-item', { 'active': activeTabIndex === index }]"
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@click="setActiveTab(index)"
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@mousedown="onTabDragStart(index, $event)"
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>
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<div class="flex items-center justify-between h-full px-3">
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<span class="tab-title">{{ panel.title }}</span>
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<!-- 当标签页未被激活时显示关闭按钮 -->
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<button
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v-if="activeTabIndex !== index"
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class="button-icon p-[2px] rounded hover:opacity-100 opacity-80"
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@click.stop="closeTab(panel.id)"
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aria-label="关闭"
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>
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<svg width="11" height="11" viewBox="0 0 11 11" aria-hidden="true">
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<line x1="2" y1="2" x2="9" y2="9" stroke="#e6efff" stroke-width="1" />
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<line x1="2" y1="9" x2="9" y2="2" stroke="#e6efff" stroke-width="1" />
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</svg>
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</button>
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</div>
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</div>
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<div class="tab-placeholder"></div>
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</div>
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<!-- Tab页内容区域 -->
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<div class="tab-content">
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<!-- 渲染slot内容（Panel组件） -->
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<slot></slot>
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</div>
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</div>
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</template>
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<script setup>
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import { defineProps, defineEmits, ref, onMounted } from 'vue'
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const props = defineProps({
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id: { type: String, required: true },
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title: { type: String, default: '标签页' },
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// 从父组件传入的面板数组
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panels: {
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type: Array,
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default: () => []
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},
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// 是否显示页标签栏
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showTabs: {
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type: Boolean,
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default: true
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}
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})
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const emit = defineEmits(['tabChange', 'tabClose', 'tabAdd', 'tabDragStart', 'tabDragMove', 'tabDragEnd'])
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// 当前激活的标签页索引
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const activeTabIndex = ref(-1)
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// 拖拽相关状态
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let isDragging = false
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let dragIndex = -1
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// 设置激活的标签页
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const setActiveTab = (index) => {
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if (index >= 0 && index < props.panels.length) {
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activeTabIndex.value = index
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emit('tabChange', { index, tab: props.panels[index] })
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}
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}
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// 组件挂载后，如果有面板且没有激活的标签，默认激活第一个
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onMounted(() => {
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if (props.panels && props.panels.length > 0 && activeTabIndex.value === -1) {
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setActiveTab(0)
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}
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})
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// 关闭标签页
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const closeTab = (tabId) => {
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emit('tabClose', { id: tabId })
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}
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// 标签拖拽开始
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const onTabDragStart = (index, event) => {
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// 只有当点击的是标题文本区域（不是关闭按钮）时才触发拖拽
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if (!event.target.closest('.button-icon') && !event.target.closest('button')) {
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isDragging = true
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dragIndex = index
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// 传递标签页索引和鼠标位置
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emit('tabDragStart', {
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clientX: event.clientX,
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clientY: event.clientY,
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tabIndex: index,
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tabId: props.panels[index].id
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})
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// 防止文本选择和默认行为
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event.preventDefault()
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event.stopPropagation()
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// 将鼠标移动和释放事件绑定到document，确保拖拽的连续性
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document.addEventListener('mousemove', onTabDragMove)
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document.addEventListener('mouseup', onTabDragEnd)
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document.addEventListener('mouseleave', onTabDragEnd)
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}
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}
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// 标签拖拽移动
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const onTabDragMove = (event) => {
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if (isDragging) {
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// 防止文本选择和默认行为
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event.preventDefault()
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event.stopPropagation()
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emit('tabDragMove', {
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clientX: event.clientX,
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clientY: event.clientY,
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tabIndex: dragIndex
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})
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}
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}
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// 标签拖拽结束
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const onTabDragEnd = () => {
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if (isDragging) {
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isDragging = false
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emit('tabDragEnd', { tabIndex: dragIndex })
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dragIndex = -1
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// 拖拽结束后移除事件监听器
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document.removeEventListener('mousemove', onTabDragMove)
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document.removeEventListener('mouseup', onTabDragEnd)
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document.removeEventListener('mouseleave', onTabDragEnd)
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}
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}
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</script>
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<style scoped>
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.tab-page {
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display: flex;
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flex-direction: column;
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width: 100%;
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height: 100%;
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background: #5D6B99;
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border: 0px solid #c7d2ea;
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border-radius: 0;
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overflow: hidden;
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font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
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}
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:root {
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--vs-blue-top: #4f72b3;
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--vs-blue-bottom: #3c5a99;
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}
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/* 标签栏样式 - 模仿Windows Forms */
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.tab-header {
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display: flex;
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flex-wrap: nowrap;
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height: 28px;
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background: transparent;
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border-bottom: none;
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overflow-x: auto;
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overflow-y: hidden;
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padding-top: 2px;
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}
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.tab-item {
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height: 26px;
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margin-left: 1px;
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background: linear-gradient(to bottom, var(--vs-blue-top), var(--vs-blue-bottom));
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border-bottom-color: #c7d2ea;
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border-radius: 3px 3px 0 0;
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cursor: pointer;
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white-space: nowrap;
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color: white;
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font-size: 12px;
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user-select: none;
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min-width: 60px;
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}
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.tab-title {
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flex: 1;
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text-align: left;
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min-width: 0;
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overflow: hidden;
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text-overflow: ellipsis;
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white-space: nowrap;
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margin-right: 8px;
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}
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.tab-item.active {
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background: #F5CC84;
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border: 1px solid #c7d2ea;
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border-bottom-color: #F5CC84;
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border-top-width: 2px;
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border-top-color: #0078d7;
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color: #000000;
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font-weight: 500;
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}
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.tab-item:hover {
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background: linear-gradient(to bottom, #5a7db8, #4667a4);
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}
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.tab-item.active:hover {
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background: #F5CC84;
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color: #000000;
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}
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.button-icon {
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background: transparent;
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border: none;
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cursor: pointer;
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display: flex;
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align-items: center;
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justify-content: center;
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}
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/* 确保在活动标签页中的按钮样式正确 */
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.tab-item.active .button-icon {
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opacity: 0.6;
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}
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.tab-item.active .button-icon:hover {
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opacity: 1;
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background: #f3f4f6;
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}
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/* 确保在非活动标签页中的按钮样式正确 */
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.tab-item:not(.active) .button-icon svg line {
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stroke: #e6efff;
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}
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.tab-item:not(.active) .button-icon:hover svg line {
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stroke: white;
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}
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.tab-placeholder {
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background: transparent;
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border: transparent;
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border-bottom-color: #c7d2ea;
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}
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/* 内容区域样式 */
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.tab-content {
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flex: 1;
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position: relative;
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overflow: hidden;
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}
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.tab-panel {
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position: absolute;
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top: 0;
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left: 0;
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width: 100%;
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height: 100%;
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padding: 12px;
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overflow: auto;
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background: #ffffff;
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display: none;
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}
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.tab-panel.active {
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display: block;
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}
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.tab-empty {
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display: flex;
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align-items: center;
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justify-content: center;
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width: 100%;
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height: 100%;
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color: #999;
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font-size: 14px;
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}
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/* 滚动条样式 */
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.tab-header::-webkit-scrollbar {
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height: 6px;
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}
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.tab-header::-webkit-scrollbar-track {
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background: #f0f0f0;
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}
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.tab-header::-webkit-scrollbar-thumb {
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background: #c7d2ea;
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border-radius: 3px;
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}
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.tab-panel::-webkit-scrollbar {
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width: 12px;
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height: 12px;
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}
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.tab-panel::-webkit-scrollbar-track {
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background: #f5f7fb;
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border-left: 1px solid #c7d2ea;
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}
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.tab-panel::-webkit-scrollbar-thumb {
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background: linear-gradient(to bottom, #d0d6ea, #c0c7e0);
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border: 1px solid #b0b6d6;
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border-radius: 6px;
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}
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.tab-panel::-webkit-scrollbar-thumb:hover {
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background: linear-gradient(to bottom, #c1c7e2, #b2b8d9);
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}
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</style> |