users/uni_modules/uview-ui/components/u-notify/u-notify.vue

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<template>
<u-transition
mode="slide-down"
:customStyle="containerStyle"
:show="open"
>
<view
class="u-notify"
:class="[`u-notify--${tmpConfig.type}`]"
:style="[backgroundColor, $u.addStyle(customStyle)]"
>
<u-status-bar v-if="tmpConfig.safeAreaInsetTop"></u-status-bar>
<view class="u-notify__warpper">
<slot name="icon">
<u-icon
v-if="['success', 'warning', 'error'].includes(tmpConfig.type)"
:name="tmpConfig.icon"
:color="tmpConfig.color"
:size="1.3 * tmpConfig.fontSize"
:customStyle="{marginRight: '4px'}"
></u-icon>
</slot>
<text
class="u-notify__warpper__text"
:style="{
fontSize: $u.addUnit(tmpConfig.fontSize),
color: tmpConfig.color
}"
>{{ tmpConfig.message }}</text>
</view>
</view>
</u-transition>
</template>
<script>
import props from './props.js';
/**
* notify 顶部提示
* @description 该组件一般用于页面顶部向下滑出一个提示,尔后自动收起的场景
* @tutorial
* @property {String | Number} top 到顶部的距离 ( 默认 0 )
* @property {String} type 主题primarysuccesswarningerror ( 默认 'primary' )
* @property {String} color 字体颜色 ( 默认 '#ffffff' )
* @property {String} bgColor 背景颜色
* @property {String} message 展示的文字内容
* @property {String | Number} duration 展示时长为0时不消失单位ms ( 默认 3000 )
* @property {String | Number} fontSize 字体大小 ( 默认 15 )
* @property {Boolean} safeAreaInsetTop 是否留出顶部安全距离(状态栏高度) ( 默认 false )
* @property {Object} customStyle 组件的样式,对象形式
* @event {Function} open 开启组件时调用的函数
* @event {Function} close 关闭组件式调用的函数
* @example <u-notify message="Hi uView"></u-notify>
*/
export default {
name: 'u-notify',
mixins: [uni.$u.mpMixin, uni.$u.mixin,props],
data() {
return {
// 是否展示组件
open: false,
timer: null,
config: {
// 到顶部的距离
top: uni.$u.props.notify.top,
// type主题primarysuccesswarningerror
type: uni.$u.props.notify.type,
// 字体颜色
color: uni.$u.props.notify.color,
// 背景颜色
bgColor: uni.$u.props.notify.bgColor,
// 展示的文字内容
message: uni.$u.props.notify.message,
// 展示时长为0时不消失单位ms
duration: uni.$u.props.notify.duration,
// 字体大小
fontSize: uni.$u.props.notify.fontSize,
// 是否留出顶部安全距离(状态栏高度)
safeAreaInsetTop: uni.$u.props.notify.safeAreaInsetTop
},
// 合并后的配置,避免多次调用组件后,可能会复用之前使用的配置参数
tmpConfig: {}
}
},
computed: {
containerStyle() {
let top = 0
if (this.tmpConfig.top === 0) {
// #ifdef H5
// H5端导航栏为普通元素需要将组件移动到导航栏的下边沿
// H5的导航栏高度为44px
top = 44
// #endif
}
const style = {
top: uni.$u.addUnit(this.tmpConfig.top === 0 ? top : this.tmpConfig.top),
// 因为组件底层为u-transition组件必须将其设置为fixed定位
// 让其出现在导航栏底部
position: 'fixed',
left: 0,
right: 0,
zIndex: 10076
}
return style
},
// 组件背景颜色
backgroundColor() {
const style = {}
if (this.tmpConfig.bgColor) {
style.backgroundColor = this.tmpConfig.bgColor
}
return style
},
// 默认主题下的图标
icon() {
let icon
if (this.tmpConfig.type === 'success') {
icon = 'checkmark-circle'
} else if (this.tmpConfig.type === 'error') {
icon = 'close-circle'
} else if (this.tmpConfig.type === 'warning') {
icon = 'error-circle'
}
return icon
}
},
created() {
// 通过主题的形式调用toast批量生成方法函数
['primary', 'success', 'error', 'warning'].map(item => {
this[item] = message => this.show({
type: item,
message
})
})
},
methods: {
show(options) {
// 不将结果合并到this.config变量避免多次调用u-toast前后的配置造成混乱
this.tmpConfig = uni.$u.deepMerge(this.config, options)
// 任何定时器初始化之前,都要执行清除操作,否则可能会造成混乱
this.clearTimer()
this.open = true
if (this.tmpConfig.duration > 0) {
this.timer = setTimeout(() => {
this.open = false
// 倒计时结束清除定时器隐藏toast组件
this.clearTimer()
// 判断是否存在callback方法如果存在就执行
typeof(this.tmpConfig.complete) === 'function' && this.tmpConfig.complete()
}, this.tmpConfig.duration)
}
},
// 关闭notify
close() {
this.clearTimer()
},
clearTimer() {
this.open = false
// 清除定时器
clearTimeout(this.timer)
this.timer = null
}
},
beforeDestroy() {
this.clearTimer()
}
}
</script>
<style lang="scss" scoped>
@import "../../libs/css/components.scss";
$u-notify-padding: 8px 10px !default;
$u-notify-text-font-size: 15px !default;
$u-notify-primary-bgColor: $u-primary !default;
$u-notify-success-bgColor: $u-success !default;
$u-notify-error-bgColor: $u-error !default;
$u-notify-warning-bgColor: $u-warning !default;
.u-notify {
padding: $u-notify-padding;
&__warpper {
@include flex;
align-items: center;
text-align: center;
justify-content: center;
&__text {
font-size: $u-notify-text-font-size;
text-align: center;
}
}
&--primary {
background-color: $u-notify-primary-bgColor;
}
&--success {
background-color: $u-notify-success-bgColor;
}
&--error {
background-color: $u-notify-error-bgColor;
}
&--warning {
background-color: $u-notify-warning-bgColor;
}
}
</style>