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- <template>
- <view
- class="u-icon"
- @tap="clickHandler"
- :class="['u-icon--' + labelPos]"
- >
- <image
- class="u-icon__img"
- v-if="isImg"
- :src="name"
- :mode="imgMode"
- :style="[imgStyle, addStyle(customStyle)]"
- ></image>
- <text
- v-else
- class="u-icon__icon"
- :class="uClasses"
- :style="[iconStyle, addStyle(customStyle)]"
- :hover-class="hoverClass"
- >{{icon}}</text>
- <!-- 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 -->
- <text
- v-if="label !== ''"
- class="u-icon__label"
- :style="{
- color: labelColor,
- fontSize: addUnit(labelSize),
- marginLeft: labelPos == 'right' ? addUnit(space) : 0,
- marginTop: labelPos == 'bottom' ? addUnit(space) : 0,
- marginRight: labelPos == 'left' ? addUnit(space) : 0,
- marginBottom: labelPos == 'top' ? addUnit(space) : 0,
- }"
- >{{ label }}</text>
- </view>
- </template>
- <script>
- // #ifdef APP-NVUE
- // nvue通过weex的dom模块引入字体,相关文档地址如下:
- // https://weex.apache.org/zh/docs/modules/dom.html#addrule
- const fontUrl = 'https://at.alicdn.com/t/font_2225171_8kdcwk4po24.ttf'
- const domModule = weex.requireModule('dom')
- domModule.addRule('fontFace', {
- 'fontFamily': "uicon-iconfont",
- 'src': `url('${fontUrl}')`
- })
- // #endif
- // 引入图标名称,已经对应的unicode
- import icons from './icons'
- import { props } from './props';
- import { mpMixin } from '../../libs/mixin/mpMixin';
- import { mixin } from '../../libs/mixin/mixin';
- import { addUnit, addStyle } from '../../libs/function/index';
- import config from '../../libs/config/config';
- /**
- * icon 图标
- * @description 基于字体的图标集,包含了大多数常见场景的图标。
- * @tutorial https://ijry.github.io/uview-plus/components/icon.html
- * @property {String} name 图标名称,见示例图标集
- * @property {String} color 图标颜色,可接受主题色 (默认 color['u-content-color'] )
- * @property {String | Number} size 图标字体大小,单位px (默认 '16px' )
- * @property {Boolean} bold 是否显示粗体 (默认 false )
- * @property {String | Number} index 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)
- * @property {String} hoverClass 图标按下去的样式类,用法同uni的view组件的hoverClass参数,详情见官网
- * @property {String} customPrefix 自定义扩展前缀,方便用户扩展自己的图标库 (默认 'uicon' )
- * @property {String | Number} label 图标右侧的label文字
- * @property {String} labelPos label相对于图标的位置,只能right或bottom (默认 'right' )
- * @property {String | Number} labelSize label字体大小,单位px (默认 '15px' )
- * @property {String} labelColor 图标右侧的label文字颜色 ( 默认 color['u-content-color'] )
- * @property {String | Number} space label与图标的距离,单位px (默认 '3px' )
- * @property {String} imgMode 图片的mode
- * @property {String | Number} width 显示图片小图标时的宽度
- * @property {String | Number} height 显示图片小图标时的高度
- * @property {String | Number} top 图标在垂直方向上的定位 用于解决某些情况下,让图标垂直居中的用途 (默认 0 )
- * @property {Boolean} stop 是否阻止事件传播 (默认 false )
- * @property {Object} customStyle icon的样式,对象形式
- * @event {Function} click 点击图标时触发
- * @event {Function} touchstart 事件触摸时触发
- * @example <u-icon name="photo" color="#2979ff" size="28"></u-icon>
- */
- export default {
- name: 'u-icon',
- data() {
- return {
- }
- },
- emits: ['click'],
- mixins: [mpMixin, mixin, props],
- computed: {
- uClasses() {
- let classes = []
- classes.push(this.customPrefix + ' ' + this.name)
- // uView的自定义图标类名为u-iconfont
- if (this.customPrefix == 'uicon') {
- classes.push('u-iconfont')
- } else {
- // 不能缺少这一步,否则自定义图标会无效
- classes.push(this.customPrefix)
- }
- // 主题色,通过类配置
- if (this.color && config.type.includes(this.color)) classes.push('u-icon__icon--' + this.color)
- // 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
- // 故需将其拆成一个字符串的形式,通过空格隔开各个类名
- //#ifdef MP-ALIPAY || MP-TOUTIAO || MP-BAIDU
- classes = classes.join(' ')
- //#endif
- return classes
- },
- iconStyle() {
- let style = {}
- style = {
- fontSize: addUnit(this.size),
- lineHeight: addUnit(this.size),
- fontWeight: this.bold ? 'bold' : 'normal',
- // 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
- top: addUnit(this.top)
- }
- // 非主题色值时,才当作颜色值
- if (this.color && !config.type.includes(this.color)) {
- style.color = this.color
- style.fill = this.color
- }
- return style
- },
- // 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
- isImg() {
- return this.name.indexOf('/') !== -1
- },
- imgStyle() {
- let style = {}
- // 如果设置width和height属性,则优先使用,否则使用size属性
- style.width = this.width ? addUnit(this.width) : addUnit(this.size)
- style.height = this.height ? addUnit(this.height) : addUnit(this.size)
- return style
- },
- // 通过图标名,查找对应的图标
- icon() {
- // 使用自定义图标的时候页面上会把name属性也展示出来,所以在这里处理一下
- if (this.customPrefix !== "uicon") return "";
- // 如果内置的图标中找不到对应的图标,就直接返回name值,因为用户可能传入的是unicode代码
- return icons['uicon-' + this.name] || this.name
- }
- },
- methods: {
- addStyle,
- addUnit,
- clickHandler(e) {
- this.$emit('click', this.index)
- // 是否阻止事件冒泡
- this.stop && this.preventEvent(e)
- }
- }
- }
- </script>
- <style lang="scss" scoped>
- @import "../../libs/css/components.scss";
- // 变量定义
- $u-icon-primary: $u-primary !default;
- $u-icon-success: $u-success !default;
- $u-icon-info: $u-info !default;
- $u-icon-warning: $u-warning !default;
- $u-icon-error: $u-error !default;
- $u-icon-label-line-height:1 !default;
- /* #ifndef APP-NVUE */
- // 非nvue下加载字体
- @font-face {
- font-family: 'uicon-iconfont';
- src: url('https://at.alicdn.com/t/font_2225171_8kdcwk4po24.ttf') format('truetype');
- }
- /* #endif */
- .u-icon {
- /* #ifndef APP-NVUE */
- display: flex;
- /* #endif */
- align-items: center;
- &--left {
- flex-direction: row-reverse;
- align-items: center;
- }
- &--right {
- flex-direction: row;
- align-items: center;
- }
- &--top {
- flex-direction: column-reverse;
- justify-content: center;
- }
- &--bottom {
- flex-direction: column;
- justify-content: center;
- }
- &__icon {
- font-family: uicon-iconfont;
- position: relative;
- @include flex;
- align-items: center;
- &--primary {
- color: $u-icon-primary;
- }
- &--success {
- color: $u-icon-success;
- }
- &--error {
- color: $u-icon-error;
- }
- &--warning {
- color: $u-icon-warning;
- }
- &--info {
- color: $u-icon-info;
- }
- }
- &__img {
- /* #ifndef APP-NVUE */
- height: auto;
- will-change: transform;
- /* #endif */
- }
- &__label {
- /* #ifndef APP-NVUE */
- line-height: $u-icon-label-line-height;
- /* #endif */
- }
- }
- </style>
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