From 42008124b68bfd7f2e2003c07bc0bdd5311f95b6 Mon Sep 17 00:00:00 2001
From: 疯狂的狮子li <15040126243@163.com>
Date: 星期三, 29 四月 2020 09:17:17 +0800
Subject: [PATCH] Merge remote-tracking branch 'origin/master'
---
ruoyi-ui/src/layout/components/TagsView/ScrollPane.vue | 85 ++++++++++++++++++++++++++++++++++++++++++
1 files changed, 85 insertions(+), 0 deletions(-)
diff --git a/ruoyi-ui/src/layout/components/TagsView/ScrollPane.vue b/ruoyi-ui/src/layout/components/TagsView/ScrollPane.vue
new file mode 100644
index 0000000..0ec76e7
--- /dev/null
+++ b/ruoyi-ui/src/layout/components/TagsView/ScrollPane.vue
@@ -0,0 +1,85 @@
+<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
+ }
+ },
+ methods: {
+ handleScroll(e) {
+ const eventDelta = e.wheelDelta || -e.deltaY * 40
+ const $scrollWrapper = this.scrollWrapper
+ $scrollWrapper.scrollLeft = $scrollWrapper.scrollLeft + eventDelta / 4
+ },
+ 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%;
+ /deep/ {
+ .el-scrollbar__bar {
+ bottom: 0px;
+ }
+ .el-scrollbar__wrap {
+ height: 49px;
+ }
+ }
+}
+</style>
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