From d1448cb0ef10f358bb7bddb4e1ec268515e0b787 Mon Sep 17 00:00:00 2001
From: gaoluyang <2820782392@qq.com>
Date: 星期二, 15 七月 2025 11:46:57 +0800
Subject: [PATCH] 项目初始化
---
uni_modules/uview-ui/components/u-sticky/u-sticky.vue | 212 +++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 212 insertions(+), 0 deletions(-)
diff --git a/uni_modules/uview-ui/components/u-sticky/u-sticky.vue b/uni_modules/uview-ui/components/u-sticky/u-sticky.vue
new file mode 100644
index 0000000..ff74688
--- /dev/null
+++ b/uni_modules/uview-ui/components/u-sticky/u-sticky.vue
@@ -0,0 +1,212 @@
+<template>
+ <view
+ class="u-sticky"
+ :id="elId"
+ :style="[style]"
+ >
+ <view
+ :style="[stickyContent]"
+ class="u-sticky__content"
+ >
+ <slot />
+ </view>
+ </view>
+</template>
+
+<script>
+ import props from './props.js';;
+ /**
+ * sticky 鍚搁《
+ * @description 璇ョ粍浠朵笌CSS涓璸osition: sticky灞炴�у疄鐜扮殑鏁堟灉涓�鑷达紝褰撶粍浠惰揪鍒伴璁剧殑鍒伴《閮ㄨ窛绂绘椂锛� 灏变細鍥哄畾鍦ㄦ寚瀹氫綅缃紝缁勪欢浣嶇疆澶т簬棰勮鐨勯《閮ㄨ窛绂绘椂锛屼細閲嶆柊鎸夌収姝ｅ父鐨勫竷灞�鎺掑垪銆�
+ * @tutorial https://www.uviewui.com/components/sticky.html
+ * @property {String 锝� Number} offsetTop 鍚搁《鏃朵笌椤堕儴鐨勮窛绂伙紝鍗曚綅px锛堥粯璁� 0 锛�
+ * @property {String 锝� Number} customNavHeight 鑷畾涔夊鑸爮鐨勯珮搴� 锛坔5 榛樿44 鍏朵粬榛樿 0 锛�
+ * @property {Boolean} disabled 鏄惁寮�鍚惛椤跺姛鑳� 锛堥粯璁� false 锛�
+ * @property {String} bgColor 缁勪欢鑳屾櫙棰滆壊锛堥粯璁� '#ffffff' 锛�
+ * @property {String 锝� Number} zIndex 鍚搁《鏃剁殑z-index鍊�
+ * @property {String 锝� Number} index 鑷畾涔夋爣璇嗭紝鐢ㄤ簬鍖哄垎鏄摢涓�涓粍浠�
+ * @property {Object} customStyle 缁勪欢鐨勬牱寮忥紝瀵硅薄褰㈠紡
+ * @event {Function} fixed 缁勪欢鍚搁《鏃惰Е鍙�
+ * @event {Function} unfixed 缁勪欢鍙栨秷鍚搁《鏃惰Е鍙�
+ * @example <u-sticky offsetTop="200"><view>濉炰笅绉嬫潵椋庢櫙寮傦紝琛￠槼闆佸幓鏃犵暀鎰�</view></u-sticky>
+ */
+ export default {
+ name: 'u-sticky',
+ mixins: [uni.$u.mpMixin, uni.$u.mixin, props],
+ data() {
+ return {
+ cssSticky: false, // 鏄惁浣跨敤css鐨剆ticky瀹炵幇
+ stickyTop: 0, // 鍚搁《鐨則op鍊硷紝鍥犱负鍙兘鍙楄嚜瀹氫箟瀵艰埅鏍忓奖鍝嶏紝鏈�缁堢殑鍚搁《鍊奸潪offsetTop鍊�
+ elId: uni.$u.guid(),
+ left: 0, // js妯″紡鏃讹紝鍚搁《鐨勫唴瀹瑰洜涓哄浜巔ostition: fixed妯″紡锛屼负浜嗗拰鍘熸潵淇濇寔涓�鑷寸殑鏍峰紡锛岄渶瑕佽褰曞苟閲嶆柊璁剧疆瀹冪殑left锛宧eight锛寃idth灞炴��
+ width: 'auto',
+ height: 'auto',
+ fixed: false, // js妯″紡鏃讹紝鏄惁澶勪簬鍚搁《妯″紡
+ }
+ },
+ computed: {
+ style() {
+ const style = {}
+ if(!this.disabled) {
+ if (this.cssSticky) {
+ style.position = 'sticky'
+ style.zIndex = this.uZindex
+ style.top = uni.$u.addUnit(this.stickyTop)
+ } else {
+ style.height = this.fixed ? this.height + 'px' : 'auto'
+ }
+ } else {
+ // 鏃犻渶鍚搁《鏃讹紝璁剧疆浼氶粯璁ょ殑relative(nvue)鍜岄潪nvue鐨剆tatic闈欐�佹ā寮忓嵆鍙�
+ // #ifdef APP-NVUE
+ style.position = 'relative'
+ // #endif
+ // #ifndef APP-NVUE
+ style.position = 'static'
+ // #endif
+ }
+ style.backgroundColor = this.bgColor
+ return uni.$u.deepMerge(uni.$u.addStyle(this.customStyle), style)
+ },
+ // 鍚搁《鍐呭鐨勬牱寮�
+ stickyContent() {
+ const style = {}
+ if (!this.cssSticky) {
+ style.position = this.fixed ? 'fixed' : 'static'
+ style.top = this.stickyTop + 'px'
+ style.left = this.left + 'px'
+ style.width = this.width == 'auto' ? 'auto' : this.width + 'px'
+ style.zIndex = this.uZindex
+ }
+ return style
+ },
+ uZindex() {
+ return this.zIndex ? this.zIndex : uni.$u.zIndex.sticky
+ }
+ },
+ mounted() {
+ this.init()
+ },
+ methods: {
+ init() {
+ this.getStickyTop()
+ // 鍒ゆ柇浣跨敤鐨勬ā寮�
+ this.checkSupportCssSticky()
+ // 濡傛灉涓嶆敮鎸乧ss sticky锛屽垯浣跨敤js鏂规锛屾鏂规鎬ц兘姣斾笉涓奵ss鏂规
+ if (!this.cssSticky) {
+ !this.disabled && this.initObserveContent()
+ }
+ },
+ initObserveContent() {
+ // 鑾峰彇鍚搁《鍐呭鐨勯珮搴︼紝鐢ㄤ簬鍦╦s鍚搁《妯″紡鏃讹紝缁欑埗鍏冪礌涓�涓～鍏呴珮搴︼紝闃叉"濉岄櫡"
+ this.$uGetRect('#' + this.elId).then((res) => {
+ this.height = res.height
+ this.left = res.left
+ this.width = res.width
+ this.$nextTick(() => {
+ this.observeContent()
+ })
+ })
+ },
+ observeContent() {
+ // 鍏堟柇鎺変箣鍓嶇殑瑙傚療
+ this.disconnectObserver('contentObserver')
+ const contentObserver = uni.createIntersectionObserver({
+ // 妫�娴嬬殑鍖洪棿鑼冨洿
+ thresholds: [0.95, 0.98, 1]
+ })
+ // 鍒板睆骞曢《閮ㄧ殑楂樺害鏃惰Е鍙�
+ contentObserver.relativeToViewport({
+ top: -this.stickyTop
+ })
+ // 缁戝畾瑙傚療鐨勫厓绱�
+ contentObserver.observe(`#${this.elId}`, res => {
+ this.setFixed(res.boundingClientRect.top)
+ })
+ this.contentObserver = contentObserver
+ },
+ setFixed(top) {
+ // 鍒ゆ柇鏄惁鍑轰簬鍚搁《鏉′欢鑼冨洿
+ const fixed = top <= this.stickyTop
+ this.fixed = fixed
+ },
+ disconnectObserver(observerName) {
+ // 鏂帀瑙傚療锛岄噴鏀捐祫婧�
+ const observer = this[observerName]
+ observer && observer.disconnect()
+ },
+ getStickyTop() {
+ this.stickyTop = uni.$u.getPx(this.offsetTop) + uni.$u.getPx(this.customNavHeight)
+ },
+ async checkSupportCssSticky() {
+ // #ifdef H5
+ // H5锛屼竴鑸兘鏄幇浠ｆ祻瑙堝櫒锛屾槸鏀寔css sticky鐨勶紝杩欓噷浣跨敤鍒涘缓鍏冪礌鍡呮帰鐨勫舰寮忓垽鏂�
+ if (this.checkCssStickyForH5()) {
+ this.cssSticky = true
+ }
+ // #endif
+
+ // 濡傛灉瀹夊崜鐗堟湰楂樹簬8.0锛屼緷鐒惰涓烘槸鏀寔css sticky鐨�(鍥犱负瀹夊崜7鍦ㄦ煇浜涙満鍨嬶紝鍙兘涓嶆敮鎸乻ticky)
+ if (uni.$u.os() === 'android' && Number(uni.$u.sys().system) > 8) {
+ this.cssSticky = true
+ }
+
+ // APP-Vue鍜屽井淇″钩鍙帮紝閫氳繃computedStyle鍒ゆ柇鏄惁鏀寔css sticky
+ // #ifdef APP-VUE || MP-WEIXIN
+ this.cssSticky = await this.checkComputedStyle()
+ // #endif
+
+ // ios涓婏紝浠巌os6寮�濮嬶紝閮芥槸鏀寔css sticky鐨�
+ if (uni.$u.os() === 'ios') {
+ this.cssSticky = true
+ }
+
+ // nvue锛屾槸鏀寔css sticky鐨�
+ // #ifdef APP-NVUE
+ this.cssSticky = true
+ // #endif
+ },
+ // 鍦ˋPP鍜屽井淇″皬绋嬪簭涓婏紝閫氳繃uni.createSelectorQuery鍙互鍒ゆ柇鏄惁鏀寔css sticky
+ checkComputedStyle() {
+ // 鏂规硶鍐呰繘琛屽垽鏂紝閬垮厤鍦ㄥ叾浠栧钩鍙扮敓鎴愭棤鐢ㄤ唬鐮�
+ // #ifdef APP-VUE || MP-WEIXIN
+ return new Promise(resolve => {
+ uni.createSelectorQuery().in(this).select('.u-sticky').fields({
+ computedStyle: ["position"]
+ }).exec(e => {
+ resolve('sticky' === e[0].position)
+ })
+ })
+ // #endif
+ },
+ // H5閫氳繃鍒涘缓鍏冪礌鐨勫舰寮忓梾鎺㈡槸鍚︽敮鎸乧ss sticky
+ // 鍒ゆ柇娴忚鍣ㄦ槸鍚︽敮鎸乻ticky灞炴��
+ checkCssStickyForH5() {
+ // 鏂规硶鍐呰繘琛屽垽鏂紝閬垮厤鍦ㄥ叾浠栧钩鍙扮敓鎴愭棤鐢ㄤ唬鐮�
+ // #ifdef H5
+ const vendorList = ['', '-webkit-', '-ms-', '-moz-', '-o-'],
+ vendorListLength = vendorList.length,
+ stickyElement = document.createElement('div')
+ for (let i = 0; i < vendorListLength; i++) {
+ stickyElement.style.position = vendorList[i] + 'sticky'
+ if (stickyElement.style.position !== '') {
+ return true
+ }
+ }
+ return false;
+ // #endif
+ }
+ },
+ beforeDestroy() {
+ this.disconnectObserver('contentObserver')
+ }
+ }
+</script>
+
+<style lang="scss" scoped>
+ .u-sticky {
+ /* #ifdef APP-VUE || MP-WEIXIN */
+ // 姝ゅ榛樿鍐檚ticky灞炴�э紝鏄负浜嗙粰寰俊鍜孉PP閫氳繃uni.createSelectorQuery鏌ヨ鏄惁鏀寔css sticky浣跨敤
+ position: sticky;
+ /* #endif */
+ }
+</style>
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