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/* WEBPACK VAR INJECTION */(function(uni) {Object.defineProperty(exports, "__esModule", { value: true });exports.default = void 0;var _regenerator = _interopRequireDefault(__webpack_require__(/*! ./node_modules/@babel/runtime/regenerator */ 20));function _interopRequireDefault(obj) {return obj && obj.__esModule ? obj : { default: obj };}function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) {try {var info = gen[key](arg);var value = info.value;} catch (error) {reject(error);return;}if (info.done) {resolve(value);} else {Promise.resolve(value).then(_next, _throw);}}function _asyncToGenerator(fn) {return function () {var self = this,args = arguments;return new Promise(function (resolve, reject) {var gen = fn.apply(self, args);function _next(value) {asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value);}function _throw(err) {asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err);}_next(undefined);});};} // // // // // // // // // // // // // // // // // // // // /** * tabs 标签 * @description 该组件,是一个tabs标签组件,在标签多的时候,可以配置为左右滑动,标签少的时候,可以禁止滑动。 该组件的一个特点是配置为滚动模式时,激活的tab会自动移动到组件的中间位置。 * @tutorial https://www.uviewui.com/components/tabs.html * @property {Boolean} is-scroll tabs是否可以左右拖动(默认true) * @property {Array} list 标签数组,元素为对象,如[{name: '推荐'}] * @property {String Number} current 指定哪个tab为激活状态(默认0) * @property {String Number} height 导航栏的高度,单位rpx(默认80) * @property {String Number} font-size tab文字大小,单位rpx(默认30) * @property {String Number} duration 滑块移动一次所需的时间,单位秒(默认0.5) * @property {String} active-color 滑块和激活tab文字的颜色(默认#2979ff) * @property {String} inactive-color tabs文字颜色(默认#303133) * @property {String Number} bar-width 滑块宽度,单位rpx(默认40) * @property {Object} active-item-style 活动tabs item的样式,对象形式 * @property {Object} bar-style 底部滑块的样式,对象形式 * @property {Boolean} show-bar 是否显示底部的滑块(默认true) * @property {String Number} bar-height 滑块高度,单位rpx(默认6) * @property {String Number} item-width 标签的宽度(默认auto) * @property {String Number} gutter 单个tab标签的左右内边距之和,单位rpx(默认40) * @property {String} bg-color tabs导航栏的背景颜色(默认#ffffff) * @property {String} name 组件内部读取的list参数中的属性名(tab名称),见官网说明(默认name) * @property {String} count 组件内部读取的list参数中的属性名(badge徽标数),同name属性的使用,见官网说明(默认count) * @property {Array} offset 设置badge徽标数的位置偏移,格式为 [x, y],也即设置的为top和right的值,单位rpx(默认[5, 20]) * @property {Boolean} bold 激活选项的字体是否加粗(默认true) * @event {Function} change 点击标签时触发 * @example */var _default2 = { name: "u-tabs", props: { // 导航菜单是否需要滚动,如只有2或者3个的时候,就不需要滚动了,此时使用flex平分tab的宽度 isScroll: { type: Boolean, default: true }, //需循环的标签列表 list: { type: Array, default: function _default() { return []; } }, // 当前活动tab的索引 current: { type: [Number, String], default: 0 }, // 导航栏的高度和行高 height: { type: [String, Number], default: 80 }, // 字体大小 fontSize: { type: [String, Number], default: 30 }, // 过渡动画时长, 单位ms duration: { type: [String, Number], default: 0.5 }, // 选中项的主题颜色 activeColor: { type: String, default: '#2979ff' }, // 未选中项的颜色 inactiveColor: { type: String, default: '#303133' }, // 菜单底部移动的bar的宽度,单位rpx barWidth: { type: [String, Number], default: 40 }, // 移动bar的高度 barHeight: { type: [String, Number], default: 6 }, // 单个tab的左或有内边距(左右相同) gutter: { type: [String, Number], default: 30 }, // 导航栏的背景颜色 bgColor: { type: String, default: '#ffffff' }, // 读取传入的数组对象的属性(tab名称) name: { type: String, default: 'name' }, // 读取传入的数组对象的属性(徽标数) count: { type: String, default: 'count' }, // 徽标数位置偏移 offset: { type: Array, default: function _default() { return [5, 20]; } }, // 活动tab字体是否加粗 bold: { type: Boolean, default: true }, // 当前活动tab item的样式 activeItemStyle: { type: Object, default: function _default() { return {}; } }, // 是否显示底部的滑块 showBar: { type: Boolean, default: true }, // 底部滑块的自定义样式 barStyle: { type: Object, default: function _default() { return {}; } }, // 标签的宽度 itemWidth: { type: [Number, String], default: 'auto' } }, data: function data() { return { scrollLeft: 0, // 滚动scroll-view的左边滚动距离 tabQueryInfo: [], // 存放对tab菜单查询后的节点信息 componentWidth: 0, // 屏幕宽度,单位为px scrollBarLeft: 0, // 移动bar需要通过translateX()移动的距离 parentLeft: 0, // 父元素(tabs组件)到屏幕左边的距离 id: this.$u.guid(), // id值 currentIndex: this.current, barFirstTimeMove: true // 滑块第一次移动时(页面刚生成时),无需动画,否则给人怪异的感觉 }; }, watch: { // 监听tab的变化,重新计算tab菜单的布局信息,因为实际使用中菜单可能是通过 // 后台获取的(如新闻app顶部的菜单),获取返回需要一定时间,所以list变化时,重新获取布局信息 list: function list(n, o) {var _this = this; // list变动时,重制内部索引,否则可能导致超出数组边界的情况 if (n.length !== o.length) this.currentIndex = 0; // 用$nextTick等待视图更新完毕后再计算tab的局部信息,否则可能因为tab还没生成就获取,就会有问题 this.$nextTick(function () { _this.init(); }); }, current: { immediate: true, handler: function handler(nVal, oVal) {var _this2 = this; // 视图更新后再执行移动操作 this.$nextTick(function () { _this2.currentIndex = nVal; _this2.scrollByIndex(); }); } } }, computed: { // 移动bar的样式 tabBarStyle: function tabBarStyle() { var style = { width: this.barWidth + 'rpx', transform: "translate(".concat(this.scrollBarLeft, "px, -100%)"), // 滑块在页面渲染后第一次滑动时,无需动画效果 'transition-duration': "".concat(this.barFirstTimeMove ? 0 : this.duration, "s"), 'background-color': this.activeColor, height: this.barHeight + 'rpx', opacity: this.barFirstTimeMove ? 0 : 1, // 设置一个很大的值,它会自动取能用的最大值,不用高度的一半,是因为高度可能是单数,会有小数出现 'border-radius': "".concat(this.barHeight / 2, "px") }; Object.assign(style, this.barStyle); return style; }, // tab的样式 tabItemStyle: function tabItemStyle() {var _this3 = this; return function (index) { var style = { height: _this3.height + 'rpx', 'line-height': _this3.height + 'rpx', 'font-size': _this3.fontSize + 'rpx', 'transition-duration': "".concat(_this3.duration, "s"), padding: _this3.isScroll ? "0 ".concat(_this3.gutter, "rpx") : '', flex: _this3.isScroll ? 'auto' : '1', width: _this3.$u.addUnit(_this3.itemWidth) }; // 字体加粗 if (index == _this3.currentIndex && _this3.bold) style.fontWeight = 'bold'; if (index == _this3.currentIndex) { style.color = _this3.activeColor; // 给选中的tab item添加外部自定义的样式 style = Object.assign(style, _this3.activeItemStyle); } else { style.color = _this3.inactiveColor; } return style; }; } }, methods: { // 设置一个init方法,方便多处调用 init: function init() {var _this4 = this;return _asyncToGenerator( /*#__PURE__*/_regenerator.default.mark(function _callee() {var tabRect;return _regenerator.default.wrap(function _callee$(_context) {while (1) {switch (_context.prev = _context.next) {case 0:_context.next = 2;return ( _this4.$uGetRect('#' + _this4.id));case 2:tabRect = _context.sent; // tabs组件距离屏幕左边的宽度 _this4.parentLeft = tabRect.left; // tabs组件的宽度 _this4.componentWidth = tabRect.width; _this4.getTabRect();case 6:case "end":return _context.stop();}}}, _callee);}))(); }, // 点击某一个tab菜单 clickTab: function clickTab(index) { // 点击当前活动tab,不触发事件 if (index == this.currentIndex) return; // 发送事件给父组件 this.$emit('change', index); }, // 查询tab的布局信息 getTabRect: function getTabRect() { // 创建节点查询 var query = uni.createSelectorQuery().in(this); // 历遍所有tab,这里是执行了查询,最终使用exec()会一次性返回查询的数组结果 for (var i = 0; i < this.list.length; i++) { // 只要size和rect两个参数 query.select("#u-tab-item-".concat(i)).fields({ size: true, rect: true }); } // 执行查询,一次性获取多个结果 query.exec( function (res) { this.tabQueryInfo = res; // 初始化滚动条和移动bar的位置 this.scrollByIndex(); }.bind(this)); }, // 滚动scroll-view,让活动的tab处于屏幕的中间位置 scrollByIndex: function scrollByIndex() {var _this5 = this; // 当前活动tab的布局信息,有tab菜单的width和left(为元素左边界到父元素左边界的距离)等信息 var tabInfo = this.tabQueryInfo[this.currentIndex]; if (!tabInfo) return; // 活动tab的宽度 var tabWidth = tabInfo.width; // 活动item的左边到tabs组件左边的距离,用item的left减去tabs的left var offsetLeft = tabInfo.left - this.parentLeft; // 将活动的tabs-item移动到屏幕正中间,实际上是对scroll-view的移动 var scrollLeft = offsetLeft - (this.componentWidth - tabWidth) / 2; this.scrollLeft = scrollLeft < 0 ? 0 : scrollLeft; // 当前活动item的中点点到左边的距离减去滑块宽度的一半,即可得到滑块所需的移动距离 var left = tabInfo.left + tabInfo.width / 2 - this.parentLeft; 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