2020-06-11 17:54:15 +08:00

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<template>
<view :style="[customStyle]" class="u-icon" @tap="click" :class="[labelPos == 'bottom' ? 'u-flex-col u-row-center' : 'u-flex u-col-center']">
<image class="u-icon__img" v-if="isImg" :src="name" :mode="imgMode" :style="[imgStyle]"></image>
<text v-else class="u-icon__icon" :class="customClass" :style="[iconStyle]" :hover-class="hoverClass" @touchstart="touchstart"></text>
<text v-if="label" class="u-icon__label" :style="{
color: labelColor,
fontSize: labelSize + 'rpx',
marginLeft: labelPos == 'right' ? marginLeft + 'rpx' : 0,
marginTop: labelPos == 'bottom' ? marginTop + 'rpx' : 0,
}">{{label}}</text>
</view>
</template>
<script>
/**
* 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://www.uviewui.com/components/icon.html
* @property {String} name 图标名称,见示例图标集
* @property {String} color 图标颜色默认inherit
* @property {String | Number} size 图标字体大小单位rpx默认32
* @property {String | Number} label-size label字体大小单位rpx默认28
* @property {String} label 图标右侧的label文字默认28
* @property {String} label-pos label文字相对于图标的位置只能right或bottom默认right
* @property {String} label-color label字体颜色默认#606266
* @property {String | Number} margin-left label在右侧时与图标的距离单位rpx默认6
* @property {String | Number} margin-top label在下方时与图标的距离单位rpx默认6
* @property {String} label-pos label相对于图标的位置只能right或bottom默认right
* @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
* @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
* @event {Function} click 点击图标时触发
* @example <u-icon name="photo" color="#2979ff" size="28"></u-icon>
*/
export default {
name: 'u-icon',
props: {
// 图标类名
name: {
type: String,
default: ''
},
// 图标颜色
color: {
type: String,
default: ''
},
// 字体大小单位rpx
size: {
type: [Number, String],
default: 'inherit'
},
// 是否显示粗体
bold: {
type: Boolean,
default: false
},
// 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
index: {
type: [Number, String],
default: ''
},
// 触摸图标时的类名
hoverClass: {
type: String,
default: ''
},
// 自定义扩展前缀,方便用户扩展自己的图标库
customPrefix: {
type: String,
default: 'uicon'
},
// 图标右边或者下面的文字
label: {
type: String,
default: ''
},
// label的位置只能右边或者下边
labelPos: {
type: String,
default: 'right'
},
// label的大小
labelSize: {
type: [String, Number],
default: '28'
},
// label的颜色
labelColor: {
type: String,
default: '#606266'
},
// label与图标的距离(横向排列)
marginLeft: {
type: [String, Number],
default: '6'
},
// label与图标的距离(竖向排列)
marginTop: {
type: [String, Number],
default: '6'
},
// 图片的mode
imgMode: {
type: String,
default: 'widthFix'
},
// 自定义样式
customStyle: {
type: Object,
default() {
return {}
}
}
},
data() {
return {};
},
computed: {
customClass() {
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 classes.push(this.customPrefix);
// 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: this.size == 'inherit' ? 'inherit' : this.size + 'rpx',
fontWeight: this.bold ? 'bold' : 'normal'
};
if (this.color) style.color = 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 = {};
style.width = this.size + 'rpx';
return style;
}
},
methods: {
click() {
this.$emit('click', this.index);
},
touchstart() {
this.$emit('touchstart', this.index);
}
}
};
</script>
<style scoped lang="scss">
@import '../../iconfont.css';
.u-icon {
display: inline-flex;
align-items: center;
}
.u-icon__img {
height: auto;
will-change: transform;
}
</style>