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const BindingX = uni.requireNativePlugin('bindingx');
const dom = uni.requireNativePlugin('dom');
const animation = uni.requireNativePlugin('animation');
export default {
data() {
return {}
},
watch: {
show(newVal) {
if (this.autoClose) return
if (this.stop) return
this.stop = true
if (newVal) {
this.open(newVal)
} else {
this.close()
}
},
leftOptions() {
this.getSelectorQuery()
this.init()
},
rightOptions(newVal) {
this.init()
}
},
created() {
if (this.swipeaction.children !== undefined) {
this.swipeaction.children.push(this)
}
},
mounted() {
this.box = this.getEl(this.$refs['selector-box--hock'])
this.selector = this.getEl(this.$refs['selector-content--hock']);
this.leftButton = this.getEl(this.$refs['selector-left-button--hock']);
this.rightButton = this.getEl(this.$refs['selector-right-button--hock']);
this.init()
},
beforeDestroy() {
this.swipeaction.children.forEach((item, index) => {
if (item === this) {
this.swipeaction.children.splice(index, 1)
}
})
},
methods: {
init() {
this.$nextTick(() => {
this.x = 0
this.button = {
show: false
}
setTimeout(() => {
this.getSelectorQuery()
}, 200)
})
},
onClick(index, item, position) {
this.$emit('click', {
content: item,
index,
position
})
},
touchstart(e) {
// 每次只触发一次,避免多次监听造成闪烁
if (this.stop) return
this.stop = true
if (this.autoClose) {
this.swipeaction.closeOther(this)
}
const leftWidth = this.button.left.width
const rightWidth = this.button.right.width
let expression = this.range(this.x, -rightWidth, leftWidth)
let leftExpression = this.range(this.x - leftWidth, -leftWidth, 0)
let rightExpression = this.range(this.x + rightWidth, 0, rightWidth)
this.eventpan = BindingX.bind({
anchor: this.box,
eventType: 'pan',
props: [{
element: this.selector,
property: 'transform.translateX',
expression
}, {
element: this.leftButton,
property: 'transform.translateX',
expression: leftExpression
}, {
element: this.rightButton,
property: 'transform.translateX',
expression: rightExpression
}, ]
}, (e) => {
// nope
if (e.state === 'end') {
this.x = e.deltaX + this.x;
this.isclick = true
this.bindTiming(e.deltaX)
}
});
},
touchend(e) {
if (this.isopen !== 'none' && !this.isclick) {
this.open('none')
}
},
bindTiming(x) {
const left = this.x
const leftWidth = this.button.left.width
const rightWidth = this.button.right.width
const threshold = this.threshold
if (!this.isopen || this.isopen === 'none') {
if (left > threshold) {
this.open('left')
} else if (left < -threshold) {
this.open('right')
} else {
this.open('none')
}
} else {
if ((x > -leftWidth && x < 0) || x > rightWidth) {
if ((x > -threshold && x < 0) || (x - rightWidth > threshold)) {
this.open('left')
} else {
this.open('none')
}
} else {
if ((x < threshold && x > 0) || (x + leftWidth < -threshold)) {
this.open('right')
} else {
this.open('none')
}
}
}
},
/**
* 移动范围
* @param {Object} num
* @param {Object} mix
* @param {Object} max
*/
range(num, mix, max) {
return `min(max(x+${num}, ${mix}), ${max})`
},
/**
* 开启swipe
*/
open(type) {
this.animation(type)
},
/**
* 关闭swipe
*/
close() {
this.animation('none')
},
/**
* 开启关闭动画
* @param {Object} type
*/
animation(type) {
const time = 300
const leftWidth = this.button.left.width
const rightWidth = this.button.right.width
if (this.eventpan && this.eventpan.token) {
BindingX.unbind({
token: this.eventpan.token,
eventType: 'pan'
})
}
switch (type) {
case 'left':
Promise.all([
this.move(this.selector, leftWidth),
this.move(this.leftButton, 0),
this.move(this.rightButton, rightWidth * 2)
]).then(() => {
this.setEmit(leftWidth, type)
})
break
case 'right':
Promise.all([
this.move(this.selector, -rightWidth),
this.move(this.leftButton, -leftWidth * 2),
this.move(this.rightButton, 0)
]).then(() => {
this.setEmit(-rightWidth, type)
})
break
default:
Promise.all([
this.move(this.selector, 0),
this.move(this.leftButton, -leftWidth),
this.move(this.rightButton, rightWidth)
]).then(() => {
this.setEmit(0, type)
})
}
},
setEmit(x, type) {
const leftWidth = this.button.left.width
const rightWidth = this.button.right.width
this.isopen = this.isopen || 'none'
this.stop = false
this.isclick = false
// 只有状态不一致才会返回结果
if (this.isopen !== type && this.x !== x) {
if (type === 'left' && leftWidth > 0) {
this.$emit('change', 'left')
}
if (type === 'right' && rightWidth > 0) {
this.$emit('change', 'right')
}
if (type === 'none') {
this.$emit('change', 'none')
}
}
this.x = x
this.isopen = type
},
move(ref, value) {
return new Promise((resolve, reject) => {
animation.transition(ref, {
styles: {
transform: `translateX(${value})`,
},
duration: 150, //ms
timingFunction: 'linear',
needLayout: false,
delay: 0 //ms
}, function(res) {
resolve(res)
})
})
},
/**
* 获取ref
* @param {Object} el
*/
getEl(el) {
return el.ref
},
/**
* 获取节点信息
*/
getSelectorQuery() {
Promise.all([
this.getDom('left'),
this.getDom('right'),
]).then((data) => {
let show = 'none'
if (this.autoClose) {
show = 'none'
} else {
show = this.show
}
if (show === 'none') {
// this.close()
} else {
this.open(show)
}
})
},
getDom(str) {
return new Promise((resolve, reject) => {
dom.getComponentRect(this.$refs[`selector-${str}-button--hock`], (data) => {
if (data) {
this.button[str] = data.size
resolve(data)
} else {
reject()
}
})
})
}
}
}