370 lines
10 KiB
Vue
370 lines
10 KiB
Vue
<template>
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<view :style="[customStyle]" class="u-icon" @tap="click" :class="['u-icon--' + labelPos]">
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<image class="u-icon__img" v-if="isImg" :src="name" :mode="imgMode" :style="[imgStyle]"></image>
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<view
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v-else
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class="u-icon__icon"
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:class="customClass"
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:style="[iconStyle]"
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:hover-class="hoverClass"
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@touchstart="touchstart"
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>
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<text
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v-if="showDecimalIcon"
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:style="[decimalIconStyle]"
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:class="decimalIconClass"
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:hover-class="hoverClass"
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class="u-icon__decimal"
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></text>
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</view>
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<!-- 这里进行空字符串判断,如果仅仅是v-if="label",可能会出现传递0的时候,结果也无法显示,微信小程序不传值默认为null,故需要增加null的判断 -->
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<text
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v-if="label !== '' && label !== null"
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class="u-icon__label"
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:style="{
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color: labelColor,
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fontSize: $u.addUnit(labelSize),
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marginLeft: labelPos == 'right' ? $u.addUnit(marginLeft) : 0,
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marginTop: labelPos == 'bottom' ? $u.addUnit(marginTop) : 0,
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marginRight: labelPos == 'left' ? $u.addUnit(marginRight) : 0,
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marginBottom: labelPos == 'top' ? $u.addUnit(marginBottom) : 0
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}"
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>
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{{ label }}
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</text>
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</view>
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</template>
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<script>
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/**
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* icon 图标
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* @description 基于字体的图标集,包含了大多数常见场景的图标。
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* @tutorial https://www.uviewui.com/components/icon.html
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* @property {String} name 图标名称,见示例图标集
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* @property {String} color 图标颜色(默认inherit)
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* @property {String | Number} size 图标字体大小,单位rpx(默认32)
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* @property {String | Number} label-size label字体大小,单位rpx(默认28)
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* @property {String} label 图标右侧的label文字(默认28)
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* @property {String} label-pos label文字相对于图标的位置,只能right或bottom(默认right)
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* @property {String} label-color label字体颜色(默认#606266)
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* @property {Object} custom-style icon的样式,对象形式
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* @property {String} custom-prefix 自定义字体图标库时,需要写上此值
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* @property {String | Number} margin-left label在右侧时与图标的距离,单位rpx(默认6)
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* @property {String | Number} margin-top label在下方时与图标的距离,单位rpx(默认6)
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* @property {String | Number} margin-bottom label在上方时与图标的距离,单位rpx(默认6)
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* @property {String | Number} margin-right label在左侧时与图标的距离,单位rpx(默认6)
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* @property {String} label-pos label相对于图标的位置,只能right或bottom(默认right)
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* @property {String} index 一个用于区分多个图标的值,点击图标时通过click事件传出
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* @property {String} hover-class 图标按下去的样式类,用法同uni的view组件的hover-class参数,详情见官网
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* @property {String} width 显示图片小图标时的宽度
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* @property {String} height 显示图片小图标时的高度
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* @property {String} top 图标在垂直方向上的定位
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* @property {String} top 图标在垂直方向上的定位
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* @property {String} top 图标在垂直方向上的定位
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* @property {Boolean} show-decimal-icon 是否为DecimalIcon
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* @property {String} inactive-color 背景颜色,可接受主题色,仅Decimal时有效
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* @property {String | Number} percent 显示的百分比,仅Decimal时有效
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* @event {Function} click 点击图标时触发
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* @example <u-icon name="photo" color="#2979ff" size="28"></u-icon>
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*/
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export default {
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name: "u-icon",
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emits: ["click", "touchstart"],
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props: {
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// 图标类名
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name: {
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type: String,
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default: ""
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},
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// 图标颜色,可接受主题色
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color: {
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type: String,
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default: ""
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},
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// 字体大小,单位rpx
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size: {
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type: [Number, String],
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default: "inherit"
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},
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// 是否显示粗体
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bold: {
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type: Boolean,
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default: false
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},
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// 点击图标的时候传递事件出去的index(用于区分点击了哪一个)
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index: {
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type: [Number, String],
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default: ""
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},
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// 触摸图标时的类名
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hoverClass: {
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type: String,
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default: ""
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},
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// 自定义扩展前缀,方便用户扩展自己的图标库
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customPrefix: {
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type: String,
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default: "uicon"
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},
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// 图标右边或者下面的文字
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label: {
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type: [String, Number],
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default: ""
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},
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// label的位置,只能右边或者下边
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labelPos: {
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type: String,
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default: "right"
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},
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// label的大小
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labelSize: {
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type: [String, Number],
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default: "28"
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},
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// label的颜色
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labelColor: {
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type: String,
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default: "#606266"
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},
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// label与图标的距离(横向排列)
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marginLeft: {
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type: [String, Number],
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default: "6"
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},
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// label与图标的距离(竖向排列)
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marginTop: {
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type: [String, Number],
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default: "6"
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},
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// label与图标的距离(竖向排列)
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marginRight: {
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type: [String, Number],
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default: "6"
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},
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// label与图标的距离(竖向排列)
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marginBottom: {
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type: [String, Number],
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default: "6"
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},
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// 图片的mode
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imgMode: {
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type: String,
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default: "widthFix"
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},
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// 自定义样式
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customStyle: {
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type: Object,
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default() {
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return {};
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}
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},
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// 用于显示图片小图标时,图片的宽度
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width: {
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type: [String, Number],
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default: ""
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},
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// 用于显示图片小图标时,图片的高度
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height: {
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type: [String, Number],
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default: ""
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},
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// 用于解决某些情况下,让图标垂直居中的用途
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top: {
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type: [String, Number],
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default: 0
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},
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// 是否为DecimalIcon
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showDecimalIcon: {
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type: Boolean,
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default: false
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},
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// 背景颜色,可接受主题色,仅Decimal时有效
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inactiveColor: {
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type: String,
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default: "#ececec"
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},
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// 显示的百分比,仅Decimal时有效
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percent: {
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type: [Number, String],
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default: "50"
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}
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},
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computed: {
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customClass() {
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let classes = [];
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let { customPrefix, name } = this;
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let index = name.indexOf("-icon-");
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if (index > -1) {
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customPrefix = name.substring(0, index + 5);
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classes.push(name);
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} else {
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classes.push(`${customPrefix}-${name}`);
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}
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// uView的自定义图标类名为u-iconfont
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if (customPrefix === "uicon") {
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classes.push("u-iconfont");
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} else {
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classes.push(customPrefix);
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}
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// 主题色,通过类配置
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if (
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this.showDecimalIcon &&
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this.inactiveColor &&
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this.$u.config.type.includes(this.inactiveColor)
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) {
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classes.push("u-icon__icon--" + this.inactiveColor);
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} else if (this.color && this.$u.config.type.includes(this.color))
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classes.push("u-icon__icon--" + this.color);
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// 阿里,头条,百度小程序通过数组绑定类名时,无法直接使用[a, b, c]的形式,否则无法识别
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// 故需将其拆成一个字符串的形式,通过空格隔开各个类名
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//#ifdef MP-ALIPAY || MP-TOUTIAO || MP-BAIDU
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classes = classes.join(" ");
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//#endif
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return classes;
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},
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iconStyle() {
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let style = {};
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style = {
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fontSize: this.size == "inherit" ? "inherit" : this.$u.addUnit(this.size),
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fontWeight: this.bold ? "bold" : "normal",
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// 某些特殊情况需要设置一个到顶部的距离,才能更好的垂直居中
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top: this.$u.addUnit(this.top)
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};
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// 非主题色值时,才当作颜色值
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if (
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this.showDecimalIcon &&
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this.inactiveColor &&
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!this.$u.config.type.includes(this.inactiveColor)
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) {
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style.color = this.inactiveColor;
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} else if (this.color && !this.$u.config.type.includes(this.color)) style.color = this.color;
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return style;
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},
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// 判断传入的name属性,是否图片路径,只要带有"/"均认为是图片形式
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isImg() {
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return this.name.indexOf("/") !== -1;
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},
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imgStyle() {
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let style = {};
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// 如果设置width和height属性,则优先使用,否则使用size属性
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style.width = this.width ? this.$u.addUnit(this.width) : this.$u.addUnit(this.size);
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style.height = this.height ? this.$u.addUnit(this.height) : this.$u.addUnit(this.size);
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return style;
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},
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decimalIconStyle() {
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let style = {};
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style = {
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fontSize: this.size == "inherit" ? "inherit" : this.$u.addUnit(this.size),
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fontWeight: this.bold ? "bold" : "normal",
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// 某些特殊情况需要设置一个到顶部的距离,才能更好的垂直居中
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top: this.$u.addUnit(this.top),
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width: this.percent + "%"
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};
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// 非主题色值时,才当作颜色值
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if (this.color && !this.$u.config.type.includes(this.color)) style.color = this.color;
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return style;
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},
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decimalIconClass() {
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let classes = [];
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classes.push(this.customPrefix + "-" + this.name);
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// uView的自定义图标类名为u-iconfont
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if (this.customPrefix == "uicon") {
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classes.push("u-iconfont");
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} else {
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classes.push(this.customPrefix);
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}
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// 主题色,通过类配置
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if (this.color && this.$u.config.type.includes(this.color))
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classes.push("u-icon__icon--" + this.color);
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else classes.push("u-icon__icon--primary");
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// 阿里,头条,百度小程序通过数组绑定类名时,无法直接使用[a, b, c]的形式,否则无法识别
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// 故需将其拆成一个字符串的形式,通过空格隔开各个类名
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//#ifdef MP-ALIPAY || MP-TOUTIAO || MP-BAIDU
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classes = classes.join(" ");
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//#endif
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return classes;
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}
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},
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methods: {
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click() {
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this.$emit("click", this.index);
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},
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touchstart() {
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this.$emit("touchstart", this.index);
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}
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}
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};
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</script>
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<style scoped lang="scss">
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@import "../../libs/css/style.components.scss";
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@import "../../iconfont.css";
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.u-icon {
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display: inline-flex;
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align-items: center;
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&--left {
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flex-direction: row-reverse;
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align-items: center;
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}
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&--right {
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flex-direction: row;
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align-items: center;
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}
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&--top {
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flex-direction: column-reverse;
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justify-content: center;
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}
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&--bottom {
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flex-direction: column;
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justify-content: center;
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}
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&__icon {
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position: relative;
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&--primary {
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color: $u-type-primary;
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}
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&--success {
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color: $u-type-success;
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}
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&--error {
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color: $u-type-error;
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}
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&--warning {
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color: $u-type-warning;
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}
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&--info {
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color: $u-type-info;
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}
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}
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&__decimal {
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position: absolute;
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top: 0;
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left: 0;
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display: inline-block;
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overflow: hidden;
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}
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&__img {
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height: auto;
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will-change: transform;
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}
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&__label {
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line-height: 1;
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}
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}
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</style>
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