feat(组件): 为DragResizeBox添加localStorage持久化功能
添加storageKey属性支持将位置和尺寸保存到localStorage 初始化时优先读取存储值,拖动结束后自动保存 同时优化了CoilSelector的钢卷地图显示逻辑
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@@ -48,6 +48,11 @@ export default {
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minSize: {
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type: Object,
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default: () => ({ width: 100, height: 80 })
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},
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// 用于localStorage存储的唯一标识
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storageKey: {
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type: String,
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default: ''
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}
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},
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data() {
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@@ -67,9 +72,8 @@ export default {
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};
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},
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mounted() {
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// 初始化位置和尺寸
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this.position = { ...this.initPosition };
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this.size = { ...this.initSize };
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// 初始化位置和尺寸(优先从localStorage读取)
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this.initFromStorage();
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// 监听全局鼠标移动和松开事件
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document.addEventListener('mousemove', this.handleMouseMove);
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document.addEventListener('mouseup', this.handleMouseUp);
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@@ -83,6 +87,68 @@ export default {
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window.removeEventListener('resize', this.updateScreenSize);
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},
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methods: {
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/**
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* 从localStorage初始化位置和尺寸
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* 有key时优先读取存储值,无则使用props传入的初始值
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*/
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initFromStorage() {
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if (this.storageKey) {
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try {
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const storageKey = `dnd-ps-${this.storageKey}`;
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const storedData = localStorage.getItem(storageKey);
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if (storedData) {
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const { position, size } = JSON.parse(storedData);
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// 验证存储的数据是否合法,防止异常值
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const isValidPosition = position && typeof position.x === 'number' && typeof position.y === 'number';
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const isValidSize = size && typeof size.width === 'number' && typeof size.height === 'number';
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if (isValidPosition && isValidSize) {
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// 使用存储的位置和尺寸(确保不小于最小尺寸)
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this.position = {
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x: Math.max(0, position.x),
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y: Math.max(0, position.y)
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};
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this.size = {
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width: Math.max(this.minSize.width, size.width),
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height: Math.max(this.minSize.height, size.height)
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};
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return;
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}
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}
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} catch (error) {
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console.warn('读取拖拽元素存储数据失败,使用默认值:', error);
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}
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}
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// 无存储数据或存储异常时,使用props初始值
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this.position = { ...this.initPosition };
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this.size = { ...this.initSize };
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},
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/**
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* 将当前位置和尺寸保存到localStorage
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*/
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saveToStorage() {
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if (this.storageKey) {
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try {
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const storageKey = `dnd-ps-${this.storageKey}`;
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const saveData = {
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position: { ...this.position },
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size: { ...this.size },
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updateTime: new Date().getTime()
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};
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console.log('saveData', saveData);
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localStorage.setItem(storageKey, JSON.stringify(saveData));
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// 触发存储成功事件
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this.$emit('save-success', saveData);
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} catch (error) {
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console.error('保存拖拽元素数据失败:', error);
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this.$emit('save-fail', error);
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}
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}
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},
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/**
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* 更新屏幕尺寸(窗口大小变化时)
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*/
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@@ -174,6 +240,9 @@ export default {
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// 恢复鼠标样式
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document.body.style.cursor = 'default';
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// 保存当前状态到localStorage(有key时)
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this.saveToStorage();
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// 触发结束事件
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this.$emit('drag-end', { position: { ...this.position }, size: { ...this.size } });
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}
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@@ -203,6 +272,7 @@ export default {
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overflow: hidden;
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pointer-events: auto; /* 元素本身响应鼠标事件 */
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z-index: 9999; /* 确保元素在最上层 */
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background-color: #ffffff; /* 添加背景色,提升可视性 */
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}
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/* 元素内容区 */
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