parent
dece3803d4
commit
14c61d02f7
@ -0,0 +1,372 @@ |
||||
<template> |
||||
<view class="cj-slider" @mousemove="onSliMouseMove" @mouseup="onSliMouseUp"> |
||||
<view class="mouse-move" :style="{height: moveHeight + 'rpx'}"></view> |
||||
<view class="cj-slider__line" :class="[disabled ? 'cj-slider--disabled' : '']" :style="{ |
||||
backgroundColor: inactiveColor, |
||||
height: height + 'rpx' |
||||
}" style="border-radius: 8px;" ></view> |
||||
<view class="cj-slider__gap" :style="[ |
||||
barStyle, |
||||
{ |
||||
height: height + 'rpx', |
||||
backgroundColor: activeColor |
||||
} |
||||
]" style="border-radius: 8px;"> |
||||
<!-- <view class="cj-slider__button-wrap" @mousedown="onMouseDown(1, $event)" @mousemove="onMouseMove($event)" |
||||
@mouseleave="onMouseLeave(1)" @mouseup="onMouseUp(1)" @touchstart="onTouchStart(1, $event)" |
||||
@touchmove="onTouchMove(1, $event)" @touchend="onTouchEnd(1)" @touchcancel="onTouchEnd"> |
||||
<slot v-if="$slots.default || $slots.$default" /> |
||||
<view v-else class="cj-slider__button" :style="[blockStyle, { |
||||
height: blockWidth + 'rpx', |
||||
width: blockWidth + 'rpx', |
||||
backgroundColor: blockColor |
||||
}]"></view> |
||||
</view> --> |
||||
<view class="cj-slider__button-wrap2" @mousedown="onMouseDown(2, $event)" @mousemove="onMouseMove($event)" |
||||
@mouseleave="onMouseLeave(2)" @mouseup="onMouseUp(2)" @touchstart="onTouchStart(2, $event)" |
||||
@touchmove="onTouchMove(2, $event)" @touchend="onTouchEnd(2)" @touchcancel="onTouchEnd"> |
||||
<slot v-if="$slots.default || $slots.$default" /> |
||||
<view v-else class="cj-slider__button" :style="[blockStyle, { |
||||
height: blockWidth + 'rpx', |
||||
width: blockWidth + 'rpx', |
||||
backgroundColor: blockColor |
||||
}]"></view> |
||||
</view> |
||||
</view> |
||||
</view> |
||||
</template> |
||||
|
||||
<script> |
||||
/** |
||||
* slider 滑块选择器 |
||||
* @property {Number | String} value 滑块默认值（默认[最小值,最大值]） |
||||
* @property {Number | String} min 最小值（默认0） |
||||
* @property {Number | String} max 最大值（默认100） |
||||
* @property {Number | String} step 步长（默认1） |
||||
* @property {Number | String} blockWidth 滑块宽度，高等于宽（30） |
||||
* @property {Number | String} height 滑块条高度，单位rpx（默认6） |
||||
* @property {String} inactiveColor 底部条背景颜色（默认#c0c4cc） |
||||
* @property {String} activeColor 底部选择部分的背景颜色（默认#2979ff） |
||||
* @property {String} blockColor 滑块颜色（默认#ffffff） |
||||
* @property {Object} blockStyle 给滑块自定义样式，对象形式 |
||||
* @property {Boolean} disabled 是否禁用滑块(默认为false) |
||||
* @property {Number | String} moveHeight 鼠标离开滑块仍可滑动的区域高度，单位rpx(默认100) |
||||
* @event {Function} start 滑动触发 |
||||
* @event {Function} moving 正在滑动中 |
||||
* @event {Function} end 滑动结束 |
||||
* @example <cj-slider v-model="value" /> |
||||
*/ |
||||
export default { |
||||
name: 'cj-slider', |
||||
props: { |
||||
// 当前进度百分比值 |
||||
value: { |
||||
type: Array, |
||||
default: [] |
||||
}, |
||||
// 是否禁用滑块 |
||||
disabled: { |
||||
type: Boolean, |
||||
default: false |
||||
}, |
||||
// 滑块宽度，高等于宽，单位rpx |
||||
blockWidth: { |
||||
type: [Number, String], |
||||
default: 30 |
||||
}, |
||||
// 最小值 |
||||
min: { |
||||
type: [Number, String], |
||||
default: 0 |
||||
}, |
||||
// 最大值 |
||||
max: { |
||||
type: [Number, String], |
||||
default: 100 |
||||
}, |
||||
// 步进值 |
||||
step: { |
||||
type: [Number, String], |
||||
default: 1 |
||||
}, |
||||
// 滑块条高度，单位rpx |
||||
height: { |
||||
type: [Number, String], |
||||
default: 20 |
||||
}, |
||||
// 进度条的激活部分颜色 |
||||
activeColor: { |
||||
type: String, |
||||
default: '#f3b43f' |
||||
}, |
||||
// 进度条的背景颜色 |
||||
inactiveColor: { |
||||
type: String, |
||||
default: '#f5f6f4' |
||||
}, |
||||
// 滑块的背景颜色 |
||||
blockColor: { |
||||
type: String, |
||||
default: '#ffffff' |
||||
}, |
||||
// 用户对滑块的自定义颜色 |
||||
blockStyle: { |
||||
type: Object, |
||||
default () { |
||||
return {}; |
||||
} |
||||
}, |
||||
// 鼠标可离开滑块后仍能滑动的范围高度 |
||||
moveHeight: { |
||||
type: [Number, String], |
||||
default: '60' |
||||
} |
||||
}, |
||||
data() { |
||||
return { |
||||
mouseLeave: false, // 鼠标移出了滑块 |
||||
mouseType: 1, // 1 左滑块 2 右滑块 |
||||
mouseDown: false, // 鼠标按下 |
||||
startX: 0, |
||||
status: 'end', |
||||
newValue: 0, |
||||
distanceX: 0, |
||||
startValue: 0, |
||||
barStyle: {}, |
||||
sliderRect: { |
||||
left: 0, |
||||
width: 0 |
||||
} |
||||
}; |
||||
}, |
||||
created() { |
||||
// 如果不是长度为2的数组,默认值为[最小值, 最大值] |
||||
if (Object.prototype.toString.call(this.value) == '[object Array]' && this.value.length === 2) { |
||||
this.updateValue(this.value[0], this.value[1], false); |
||||
} else { |
||||
this.$emit('input', Array(this.min, this.max)) |
||||
} |
||||
}, |
||||
mounted() { |
||||
// 获取滑块条的尺寸信息 |
||||
this.$uGetRect('.cj-slider').then(rect => { |
||||
this.sliderRect = rect; |
||||
}); |
||||
}, |
||||
methods: { |
||||
onTouchStart(type, event) { |
||||
if (this.disabled) return; |
||||
this.startX = 0; |
||||
// 触摸点集 |
||||
let touches = event.touches[0]; |
||||
// 触摸点到屏幕左边的距离 |
||||
this.startX = touches.clientX; |
||||
// 此处的this.value虽为props值，但是通过$emit('input')进行了修改 |
||||
this.startValue = type === 1 ? this.format(this.value[0]) : this.format(this.value[1]); |
||||
// 标示当前的状态为开始触摸滑动 |
||||
this.status = 'start'; |
||||
}, |
||||
onMouseDown(type, event) { |
||||
if (this.disabled) return; |
||||
this.mouseDown = true; |
||||
this.mouseType = type |
||||
this.startX = event.clientX || 0; |
||||
this.startValue = type === 1 ? this.format(this.value[0]) : this.format(this.value[1]); |
||||
this.status = 'start'; |
||||
}, |
||||
onTouchMove(type, event) { |
||||
if (this.disabled) return; |
||||
// 连续触摸的过程会一直触发本方法，但只有手指触发且移动了才被认为是拖动了，才发出事件 |
||||
// 触摸后第一次移动已经将status设置为moving状态，故触摸第二次移动不会触发本事件 |
||||
if (this.status == 'start') this.$emit('start'); |
||||
let touches = event.touches[0] |
||||
// 滑块的左边不一定跟屏幕左边接壤，所以需要减去最外层父元素的左边值 |
||||
this.distanceX = touches.clientX - this.sliderRect.left |
||||
// 获得移动距离对整个滑块的百分比值，此为带有多位小数的值，不能用此更新视图 |
||||
// 否则造成通信阻塞，需要每改变一个step值时修改一次视图 |
||||
this.newValue = (this.distanceX / this.sliderRect.width) * (this.max - this.min) + this.min |
||||
this.status = 'moving' |
||||
// 发出moving事件 |
||||
this.$emit('moving'); |
||||
if (type === 1) { |
||||
this.updateValue(this.newValue, this.format(this.value[1]), true); |
||||
} else { |
||||
this.updateValue(this.format(this.value[0]), this.newValue, true); |
||||
} |
||||
}, |
||||
onMouseMove(event) { |
||||
if (!this.mouseDown) return; |
||||
if (this.disabled) return; |
||||
if (this.status == 'start') this.$emit('start'); |
||||
// 滑块的左边不一定跟屏幕左边接壤，所以需要减去最外层父元素的左边值 |
||||
this.distanceX = event.clientX - this.sliderRect.left |
||||
// 获得移动距离对整个滑块的百分比值，此为带有多位小数的值，不能用此更新视图 |
||||
// 否则造成通信阻塞，需要每改变一个step值时修改一次视图 |
||||
this.newValue = (this.distanceX / this.sliderRect.width) * (this.max - this.min) + this.min |
||||
this.status = 'moving' |
||||
// 发出moving事件 |
||||
this.$emit('moving'); |
||||
if (this.mouseType === 1) { |
||||
this.updateValue(this.newValue, this.format(this.value[1]), true); |
||||
} else { |
||||
this.updateValue(this.format(this.value[0]), this.newValue, true); |
||||
} |
||||
}, |
||||
onMouseLeave(type) { |
||||
this.mouseLeave = true |
||||
}, |
||||
onTouchEnd(type) { |
||||
if (this.disabled) return; |
||||
if (this.status === 'moving') { |
||||
if (type === 1) { |
||||
this.updateValue(this.newValue, this.format(this.value[1]), true); |
||||
} else { |
||||
this.updateValue(this.format(this.value[0]), this.newValue, true); |
||||
} |
||||
this.$emit('end'); |
||||
} |
||||
this.status = 'end'; |
||||
}, |
||||
onMouseUp(type) { |
||||
this.mouseDown = false; |
||||
this.mouseLeave = false; |
||||
if (this.disabled) return; |
||||
if (this.status === 'moving') { |
||||
if (type === 1) { |
||||
this.updateValue(this.newValue, this.format(this.value[1]), true); |
||||
} else { |
||||
this.updateValue(this.format(this.value[0]), this.newValue, true); |
||||
} |
||||
this.$emit('end'); |
||||
} |
||||
this.status = 'end'; |
||||
}, |
||||
onSliMouseUp() { |
||||
// 鼠标在滑块范围内松开 |
||||
this.mouseDown = false; |
||||
this.mouseLeave = false; |
||||
}, |
||||
onSliMouseMove(e) { |
||||
// 监听整个滑动内的鼠标移动，因为PC端只能监听到小滑块内的移动，移动过快鼠标移出了小滑块则移动失败。 |
||||
if (!this.mouseDown) return; |
||||
if (!this.mouseLeave) return; |
||||
this.onMouseMove(e) |
||||
}, |
||||
updateValue(value, value2, drag) { |
||||
// 去掉小数部分，同时也是对step步进的处理 |
||||
const widthB1 = this.format(value) |
||||
const widthB2 = this.format(value2) |
||||
const widthB1B = Math.round((widthB1 - this.min) * 100 / (this.max - this.min)) |
||||
const widthB2B = Math.round((widthB2 - this.min) * 100 / (this.max - this.min)) |
||||
// 不允许滑动的值超过max最大值，百分比也不能超过100 |
||||
if (widthB1 > widthB2 || widthB2 > this.max || widthB2B > 100) return; |
||||
// 设置移动的百分比值 |
||||
let barStyle = { |
||||
width: widthB2B - widthB1B + '%', |
||||
left: widthB1B + '%', |
||||
}; |
||||
// 移动期间无需过渡动画 |
||||
if (drag == true) { |
||||
barStyle.transition = 'none'; |
||||
} else { |
||||
// 非移动期间，删掉对过渡为空的声明，让css中的声明起效 |
||||
delete barStyle.transition; |
||||
} |
||||
// 修改value值，这里使用change改变，使用input H5桌面端会卡死， |
||||
this.$emit('input', Array(widthB1, widthB2)); |
||||
this.barStyle = barStyle; |
||||
}, |
||||
format(value) { |
||||
// 将小数变成整数，为了减少对视图的更新，造成视图层与逻辑层的阻塞 |
||||
return Math.round(Math.max(this.min, Math.min(value, this.max)) / this.step) * this.step; |
||||
}, |
||||
onClick(event) { |
||||
if (this.disabled) return; |
||||
// 直接点击滑块的情况，计算方式与onTouchMove方法相同 |
||||
const widthB1 = this.value[0] |
||||
const widthB2 = this.value[1] |
||||
const value = this.format(((event.detail.x - this.sliderRect.left) / this.sliderRect.width) * (this.max - this |
||||
.min) + |
||||
this.min); |
||||
if (value < widthB1 || (value - widthB1) <= (widthB2 - value)) { |
||||
// 点击位置在左滑块的左边 || 点击位置在中间，且靠近左滑块 => 移动左滑块到该位置 |
||||
this.updateValue(value, widthB2, false) |
||||
} else { |
||||
// 点击位置在右滑块的右边 || 点击位置在中间，且靠近右滑块 => 移动右滑块到该位置 |
||||
this.updateValue(widthB1, value, false) |
||||
} |
||||
}, |
||||
$uGetRect(selector, all) { |
||||
// $uGetRect为uView自带的节点查询简化方法 |
||||
return new Promise(resolve => { |
||||
uni.createSelectorQuery(). |
||||
in(this)[all ? 'selectAll' : 'select'](selector) |
||||
.boundingClientRect(rect => { |
||||
if (all && Array.isArray(rect) && rect.length) { |
||||
resolve(rect) |
||||
} |
||||
if (!all && rect) { |
||||
resolve(rect) |
||||
} |
||||
}) |
||||
.exec() |
||||
}) |
||||
}, |
||||
} |
||||
}; |
||||
</script> |
||||
|
||||
<style lang="scss" scoped> |
||||
.cj-slider { |
||||
position: relative; |
||||
// background-color: #ebedf0; |
||||
|
||||
&__line { |
||||
position: absolute; |
||||
width: 100%; |
||||
background-color: #ebedf0; |
||||
} |
||||
|
||||
&__gap { |
||||
position: relative; |
||||
// 动画有bug，暂时取消 |
||||
// transition: width 0.2s; |
||||
background-color: #1989fa; |
||||
} |
||||
|
||||
&__button { |
||||
width: 24px; |
||||
height: 24px; |
||||
border-radius: 50%; |
||||
box-shadow: 0 1px 2px rgba(0, 0, 0, 0.5); |
||||
background-color: #fff; |
||||
cursor: pointer; |
||||
} |
||||
|
||||
&__button-wrap { |
||||
position: absolute; |
||||
top: 50%; |
||||
left: 0; |
||||
transform: translate3d(-50%, -50%, 0); |
||||
} |
||||
|
||||
&__button-wrap2 { |
||||
position: absolute; |
||||
top: 50%; |
||||
right: 0; |
||||
transform: translate3d(50%, -50%, 0); |
||||
} |
||||
} |
||||
|
||||
.cj-slider--disabled { |
||||
opacity: 0.5; |
||||
} |
||||
|
||||
.mouse-move { |
||||
position: fixed; |
||||
left: 0; |
||||
right: 0; |
||||
transform: translateY(-50%); |
||||
opacity: 0; |
||||
} |
||||
</style> |
||||
Loading…
Reference in new issue