实现Area组件拖拽功能和边界限制,完善初始居中定位

This commit is contained in:
zqm
2025-11-04 09:45:51 +08:00
parent 8c8419d3e3
commit 417335ee07
3 changed files with 115 additions and 10 deletions

View File

@@ -6,7 +6,7 @@
:style="areaStyle"
>
<!-- 顶部标题栏 -->
<div v-if="showTitleBar" class="vs-title-bar">
<div v-if="showTitleBar" class="vs-title-bar" :class="{ 'cursor-move': !isMaximized }" @mousedown="onDragStart">
<div class="vs-title-left">
<div class="vs-app-icon" aria-label="AppIcon">
<svg class="vs-icon" viewBox="0 0 22.4 22.4" aria-hidden="true">
@@ -57,7 +57,7 @@
</template>
<script setup>
import { defineProps, computed, defineEmits, ref } from 'vue'
import { defineProps, computed, defineEmits, ref, onMounted } from 'vue'
const props = defineProps({
id: { type: String, required: true },
@@ -85,6 +85,14 @@ const originalPosition = ref({
top: props.top
})
// 拖拽相关状态
const isDragging = ref(false)
const dragStartPos = ref({ x: 0, y: 0 })
const areaStartPos = ref({ x: 0, y: 0 })
// 父容器引用
const parentContainer = ref(null)
// 根据本地状态计算是否最大化
const isMaximized = computed(() => localState.value === '最大化' || localState.value === 'maximized')
@@ -98,7 +106,9 @@ const areaStyle = computed(() => {
position: 'absolute',
top: 0,
left: 0,
zIndex: 100
zIndex: 100,
margin: 0,
padding: 0
}
}
@@ -119,7 +129,69 @@ const areaStyle = computed(() => {
return style
})
const emit = defineEmits(['close', 'update:WindowState'])
const emit = defineEmits(['close', 'update:WindowState', 'update:position'])
// 拖拽开始
const onDragStart = (e) => {
// 最大化状态下不允许拖拽
if (isMaximized.value) return
isDragging.value = true
dragStartPos.value = {
x: e.clientX,
y: e.clientY
}
areaStartPos.value = {
x: originalPosition.value.left || 0,
y: originalPosition.value.top || 0
}
// 添加全局事件监听
document.addEventListener('mousemove', onDragMove)
document.addEventListener('mouseup', onDragEnd)
// 防止文本选择
e.preventDefault()
}
// 拖拽移动
const onDragMove = (e) => {
if (!isDragging.value) return
// 计算移动距离
const deltaX = e.clientX - dragStartPos.value.x
const deltaY = e.clientY - dragStartPos.value.y
// 计算新位置
let newLeft = areaStartPos.value.x + deltaX
let newTop = areaStartPos.value.y + deltaY
// 如果有父容器引用,应用边界限制
if (parentContainer.value) {
const parentRect = parentContainer.value.getBoundingClientRect()
const areaWidth = originalPosition.value.width
const areaHeight = originalPosition.value.height
// 确保不超出父容器边界
newLeft = Math.max(0, Math.min(newLeft, parentRect.width - areaWidth))
newTop = Math.max(0, Math.min(newTop, parentRect.height - areaHeight))
}
// 更新位置
originalPosition.value.left = newLeft
originalPosition.value.top = newTop
// 通知父组件位置变化
emit('update:position', { left: newLeft, top: newTop })
}
// 拖拽结束
const onDragEnd = () => {
isDragging.value = false
// 移除全局事件监听
document.removeEventListener('mousemove', onDragMove)
document.removeEventListener('mouseup', onDragEnd)
}
const onToggleMaximize = () => {
const next = isMaximized.value ? '正常' : '最大化'
@@ -128,6 +200,11 @@ const onToggleMaximize = () => {
}
const onClose = () => emit('close')
// 组件挂载后获取父容器引用
onMounted(() => {
parentContainer.value = document.querySelector('.dock-layout') || window
})
</script>
<style scoped>

View File

@@ -1,5 +1,5 @@
<template>
<div class="dock-layout">
<div class="dock-layout" ref="dockLayoutRef">
<!-- 浮动区域列表 -->
<Area
v-for="area in floatingAreas"
@@ -19,6 +19,7 @@
zIndex: 100
}"
@close="onCloseFloatingArea(area.id)"
@update:position="onUpdatePosition(area.id, $event)"
/>
<!-- 主区域 -->
@@ -32,7 +33,7 @@
</template>
<script setup>
import { ref, defineExpose } from 'vue'
import { ref, defineExpose, nextTick } from 'vue'
import Area from './Area.vue';
import Panel from './Panel.vue';
@@ -42,25 +43,50 @@ const windowState = ref('最大化')
// 浮动区域列表
const floatingAreas = ref([])
// 容器引用
const dockLayoutRef = ref(null)
// 区域ID计数器
let areaIdCounter = 1
// 添加新的浮动区域
const addFloatingArea = () => {
// 获取父容器尺寸以计算居中位置
let x = 50 + (areaIdCounter - 2) * 20
let y = 50 + (areaIdCounter - 2) * 20
// 如果容器已渲染,计算居中位置
if (dockLayoutRef.value) {
const containerRect = dockLayoutRef.value.getBoundingClientRect()
const width = 300
const height = 250
x = Math.floor((containerRect.width - width) / 2)
y = Math.floor((containerRect.height - height) / 2)
}
// 创建新的Area组件配置
const newArea = {
id: `floating-area-${areaIdCounter++}`,
title: `浮动区域 ${areaIdCounter - 1}`,
x: 50 + (areaIdCounter - 2) * 20, // 错开位置
y: 50 + (areaIdCounter - 2) * 20,
x: x,
y: y,
width: 300,
height: 200,
height: 250,
WindowState: '正常',
showTitleBar: true
}
floatingAreas.value.push(newArea)
}
// 更新区域位置
const onUpdatePosition = (id, position) => {
const area = floatingAreas.value.find(a => a.id === id)
if (area) {
area.x = position.left
area.y = position.top
}
}
// 切换折叠状态
const onToggleCollapse = (id) => {
const area = floatingAreas.value.find(a => a.id === id)

View File

@@ -1,4 +1,6 @@
### Area
1. 初始添加时默认宽300px高250px。位置相对父容器水平居中垂直居中。
2. 最大化时,填充满父容器。
3. 还原时,恢复到最大化前的位置和大小。
3. 还原时,恢复到最大化前的位置和大小。
4. 关闭时,从父容器中移除。
5. 拖拽时,不允许超出父容器边界。