提交 | 用户 | age
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<template> |
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<div class="scrollbar"> |
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<div |
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ref="wrap" |
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:class="[wrapClass, 'scrollbar__wrap', native ? '' : 'scrollbar__wrap--hidden-default']" |
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:style="style" |
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@scroll="handleScroll" |
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> |
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<component :is="tag" ref="resize" :class="['scrollbar__view', viewClass]" :style="viewStyle"> |
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<slot></slot> |
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</component> |
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</div> |
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<template v-if="!native"> |
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<bar :move="moveX" :size="sizeWidth" /> |
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<bar vertical :move="moveY" :size="sizeHeight" /> |
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</template> |
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</div> |
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</template> |
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<script lang="ts"> |
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import { addResizeListener, removeResizeListener } from '/@/utils/event'; |
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import componentSetting from '/@/settings/componentSetting'; |
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const { scrollbar } = componentSetting; |
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import { toObject } from './util'; |
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import { |
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defineComponent, |
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ref, |
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onMounted, |
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onBeforeUnmount, |
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nextTick, |
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provide, |
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computed, |
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unref, |
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} from 'vue'; |
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import Bar from './bar'; |
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export default defineComponent({ |
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name: 'Scrollbar', |
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// inheritAttrs: false, |
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components: { Bar }, |
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props: { |
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native: { |
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type: Boolean, |
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default: scrollbar?.native ?? false, |
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}, |
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wrapStyle: { |
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type: [String, Array], |
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default: '', |
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}, |
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wrapClass: { |
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type: [String, Array], |
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default: '', |
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}, |
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viewClass: { |
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type: [String, Array], |
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default: '', |
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}, |
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viewStyle: { |
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type: [String, Array], |
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default: '', |
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}, |
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noresize: Boolean, // 如果 container 尺寸不会发生变化,最好设置它可以优化性能 |
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tag: { |
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type: String, |
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default: 'div', |
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}, |
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}, |
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setup(props) { |
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const sizeWidth = ref('0'); |
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const sizeHeight = ref('0'); |
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const moveX = ref(0); |
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const moveY = ref(0); |
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const wrap = ref<any>(null); |
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const resize = ref<any>(null); |
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provide('scroll-bar-wrap', wrap); |
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const style = computed(() => { |
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if (Array.isArray(props.wrapStyle)) { |
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return toObject(props.wrapStyle); |
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} |
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return props.wrapStyle; |
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}); |
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const handleScroll = () => { |
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if (!props.native) { |
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moveY.value = (unref(wrap).scrollTop * 100) / unref(wrap).clientHeight; |
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moveX.value = (unref(wrap).scrollLeft * 100) / unref(wrap).clientWidth; |
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} |
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}; |
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const update = () => { |
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if (!unref(wrap)) return; |
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const heightPercentage = (unref(wrap).clientHeight * 100) / unref(wrap).scrollHeight; |
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const widthPercentage = (unref(wrap).clientWidth * 100) / unref(wrap).scrollWidth; |
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sizeHeight.value = heightPercentage < 100 ? heightPercentage + '%' : ''; |
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sizeWidth.value = widthPercentage < 100 ? widthPercentage + '%' : ''; |
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}; |
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onMounted(() => { |
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if (props.native) return; |
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nextTick(update); |
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if (!props.noresize) { |
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addResizeListener(unref(resize), update); |
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addResizeListener(unref(wrap), update); |
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addEventListener('resize', update); |
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} |
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}); |
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onBeforeUnmount(() => { |
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if (props.native) return; |
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if (!props.noresize) { |
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removeResizeListener(unref(resize), update); |
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removeResizeListener(unref(wrap), update); |
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removeEventListener('resize', update); |
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} |
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}); |
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return { |
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moveX, |
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moveY, |
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sizeWidth, |
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sizeHeight, |
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style, |
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wrap, |
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resize, |
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update, |
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handleScroll, |
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}; |
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}, |
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}); |
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</script> |
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<style lang="less"> |
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.scrollbar { |
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position: relative; |
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height: 100%; |
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overflow: hidden; |
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&__wrap { |
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height: 100%; |
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overflow: auto; |
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&--hidden-default { |
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scrollbar-width: none; |
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&::-webkit-scrollbar { |
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display: none; |
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width: 0; |
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height: 0; |
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opacity: 0; |
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} |
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} |
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} |
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&__thumb { |
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position: relative; |
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display: block; |
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width: 0; |
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height: 0; |
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cursor: pointer; |
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background-color: rgba(144, 147, 153, 0.3); |
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border-radius: inherit; |
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transition: 0.3s background-color; |
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&:hover { |
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background-color: rgba(144, 147, 153, 0.5); |
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} |
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} |
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&__bar { |
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position: absolute; |
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right: 2px; |
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bottom: 2px; |
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z-index: 1; |
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border-radius: 4px; |
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opacity: 0; |
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-webkit-transition: opacity 80ms ease; |
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transition: opacity 80ms ease; |
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&.is-vertical { |
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top: 2px; |
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width: 6px; |
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& > div { |
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width: 100%; |
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} |
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} |
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&.is-horizontal { |
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left: 2px; |
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height: 6px; |
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& > div { |
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height: 100%; |
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} |
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} |
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} |
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} |
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.scrollbar:active > .scrollbar__bar, |
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.scrollbar:focus > .scrollbar__bar, |
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.scrollbar:hover > .scrollbar__bar { |
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opacity: 1; |
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transition: opacity 340ms ease-out; |
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} |
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</style> |