commit
a4fe88ca61
@ -1,94 +1,94 @@ |
||||
<template> |
||||
<el-scrollbar ref="scrollContainer" :vertical="false" class="scroll-container" @wheel.native.prevent="handleScroll"> |
||||
<slot /> |
||||
</el-scrollbar> |
||||
</template> |
||||
|
||||
<script> |
||||
const tagAndTagSpacing = 4 // tagAndTagSpacing |
||||
|
||||
export default { |
||||
name: 'ScrollPane', |
||||
data() { |
||||
return { |
||||
left: 0 |
||||
} |
||||
}, |
||||
computed: { |
||||
scrollWrapper() { |
||||
return this.$refs.scrollContainer.$refs.wrap |
||||
} |
||||
}, |
||||
mounted() { |
||||
this.scrollWrapper.addEventListener('scroll', this.emitScroll, true) |
||||
}, |
||||
beforeDestroy() { |
||||
this.scrollWrapper.removeEventListener('scroll', this.emitScroll) |
||||
}, |
||||
methods: { |
||||
handleScroll(e) { |
||||
const eventDelta = e.wheelDelta || -e.deltaY * 40 |
||||
const $scrollWrapper = this.scrollWrapper |
||||
$scrollWrapper.scrollLeft = $scrollWrapper.scrollLeft + eventDelta / 4 |
||||
}, |
||||
emitScroll() { |
||||
this.$emit('scroll') |
||||
}, |
||||
moveToTarget(currentTag) { |
||||
const $container = this.$refs.scrollContainer.$el |
||||
const $containerWidth = $container.offsetWidth |
||||
const $scrollWrapper = this.scrollWrapper |
||||
const tagList = this.$parent.$refs.tag |
||||
|
||||
let firstTag = null |
||||
let lastTag = null |
||||
|
||||
// find first tag and last tag |
||||
if (tagList.length > 0) { |
||||
firstTag = tagList[0] |
||||
lastTag = tagList[tagList.length - 1] |
||||
} |
||||
|
||||
if (firstTag === currentTag) { |
||||
$scrollWrapper.scrollLeft = 0 |
||||
} else if (lastTag === currentTag) { |
||||
$scrollWrapper.scrollLeft = $scrollWrapper.scrollWidth - $containerWidth |
||||
} else { |
||||
// find preTag and nextTag |
||||
const currentIndex = tagList.findIndex(item => item === currentTag) |
||||
const prevTag = tagList[currentIndex - 1] |
||||
const nextTag = tagList[currentIndex + 1] |
||||
|
||||
// the tag's offsetLeft after of nextTag |
||||
const afterNextTagOffsetLeft = nextTag.$el.offsetLeft + nextTag.$el.offsetWidth + tagAndTagSpacing |
||||
|
||||
// the tag's offsetLeft before of prevTag |
||||
const beforePrevTagOffsetLeft = prevTag.$el.offsetLeft - tagAndTagSpacing |
||||
|
||||
if (afterNextTagOffsetLeft > $scrollWrapper.scrollLeft + $containerWidth) { |
||||
$scrollWrapper.scrollLeft = afterNextTagOffsetLeft - $containerWidth |
||||
} else if (beforePrevTagOffsetLeft < $scrollWrapper.scrollLeft) { |
||||
$scrollWrapper.scrollLeft = beforePrevTagOffsetLeft |
||||
} |
||||
} |
||||
} |
||||
} |
||||
} |
||||
</script> |
||||
|
||||
<style lang="scss" scoped> |
||||
.scroll-container { |
||||
white-space: nowrap; |
||||
position: relative; |
||||
overflow: hidden; |
||||
width: 100%; |
||||
::v-deep { |
||||
.el-scrollbar__bar { |
||||
bottom: 0px; |
||||
} |
||||
.el-scrollbar__wrap { |
||||
height: 49px; |
||||
} |
||||
} |
||||
} |
||||
</style> |
||||
<template> |
||||
<el-scrollbar ref="scrollContainer" :vertical="false" class="scroll-container" @wheel.native.prevent="handleScroll"> |
||||
<slot /> |
||||
</el-scrollbar> |
||||
</template> |
||||
|
||||
<script> |
||||
const tagAndTagSpacing = 4 // tagAndTagSpacing |
||||
|
||||
export default { |
||||
name: 'ScrollPane', |
||||
data() { |
||||
return { |
||||
left: 0 |
||||
} |
||||
}, |
||||
computed: { |
||||
scrollWrapper() { |
||||
return this.$refs.scrollContainer.$refs.wrap |
||||
} |
||||
}, |
||||
mounted() { |
||||
this.scrollWrapper.addEventListener('scroll', this.emitScroll, true) |
||||
}, |
||||
beforeDestroy() { |
||||
this.scrollWrapper.removeEventListener('scroll', this.emitScroll) |
||||
}, |
||||
methods: { |
||||
handleScroll(e) { |
||||
const eventDelta = e.wheelDelta || -e.deltaY * 40 |
||||
const $scrollWrapper = this.scrollWrapper |
||||
$scrollWrapper.scrollLeft = $scrollWrapper.scrollLeft + eventDelta / 4 |
||||
}, |
||||
emitScroll() { |
||||
this.$emit('scroll') |
||||
}, |
||||
moveToTarget(currentTag) { |
||||
const $container = this.$refs.scrollContainer.$el |
||||
const $containerWidth = $container.offsetWidth |
||||
const $scrollWrapper = this.scrollWrapper |
||||
const tagList = this.$parent.$refs.tag |
||||
|
||||
let firstTag = null |
||||
let lastTag = null |
||||
|
||||
// find first tag and last tag |
||||
if (tagList.length > 0) { |
||||
firstTag = tagList[0] |
||||
lastTag = tagList[tagList.length - 1] |
||||
} |
||||
|
||||
if (firstTag === currentTag) { |
||||
$scrollWrapper.scrollLeft = 0 |
||||
} else if (lastTag === currentTag) { |
||||
$scrollWrapper.scrollLeft = $scrollWrapper.scrollWidth - $containerWidth |
||||
} else { |
||||
// find preTag and nextTag |
||||
const currentIndex = tagList.findIndex(item => item === currentTag) |
||||
const prevTag = tagList[currentIndex - 1] |
||||
const nextTag = tagList[currentIndex + 1] |
||||
|
||||
// the tag's offsetLeft after of nextTag |
||||
const afterNextTagOffsetLeft = nextTag.$el.offsetLeft + nextTag.$el.offsetWidth + tagAndTagSpacing |
||||
|
||||
// the tag's offsetLeft before of prevTag |
||||
const beforePrevTagOffsetLeft = prevTag.$el.offsetLeft - tagAndTagSpacing |
||||
|
||||
if (afterNextTagOffsetLeft > $scrollWrapper.scrollLeft + $containerWidth) { |
||||
$scrollWrapper.scrollLeft = afterNextTagOffsetLeft - $containerWidth |
||||
} else if (beforePrevTagOffsetLeft < $scrollWrapper.scrollLeft) { |
||||
$scrollWrapper.scrollLeft = beforePrevTagOffsetLeft |
||||
} |
||||
} |
||||
} |
||||
} |
||||
} |
||||
</script> |
||||
|
||||
<style lang="scss" scoped> |
||||
.scroll-container { |
||||
white-space: nowrap; |
||||
position: relative; |
||||
overflow: hidden; |
||||
width: 100%; |
||||
::v-deep { |
||||
.el-scrollbar__bar { |
||||
bottom: 0px; |
||||
} |
||||
.el-scrollbar__wrap { |
||||
height: 39px; |
||||
} |
||||
} |
||||
} |
||||
</style> |
||||
|
Loading…
Reference in new issue