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351 lines
13 KiB
351 lines
13 KiB
3 years ago
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<template>
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<view
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class="mescroll-body mescroll-render-touch"
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:style="{'minHeight':minHeight, 'padding-top': padTop, 'padding-bottom': padBottom}"
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:class="{'mescorll-sticky': sticky}"
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@touchstart="wxsBiz.touchstartEvent"
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@touchmove="wxsBiz.touchmoveEvent"
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@touchend="wxsBiz.touchendEvent"
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@touchcancel="wxsBiz.touchendEvent"
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:change:prop="wxsBiz.propObserver"
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:prop="wxsProp"
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>
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<!-- 状态栏 -->
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<view v-if="topbar&&statusBarHeight" class="mescroll-topbar" :style="{height: statusBarHeight+'px', background: topbar}"></view>
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<view class="mescroll-body-content mescroll-wxs-content" :style="{ transform: translateY, transition: transition }" :change:prop="wxsBiz.callObserver" :prop="callProp">
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<!-- 下拉加载区域 (支付宝小程序子组件传参给子子组件仍报单项数据流的异常,暂时不通过mescroll-down组件实现)-->
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<!-- <mescroll-down :option="mescroll.optDown" :type="downLoadType"></mescroll-down> -->
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<view v-if="mescroll.optDown.use" class="mescroll-downwarp" :style="{'background':mescroll.optDown.bgColor,'color':mescroll.optDown.textColor}">
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<view class="downwarp-content">
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<view v-if="isDownLoading" class="downwarp-progress"></view>
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<view v-else class="downwarp-arrow" :style="{ transform: downRotate }"></view>
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<view class="downwarp-tip">{{ downText }}</view>
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</view>
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</view>
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<!-- 列表内容 -->
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<slot></slot>
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<!-- 空布局 -->
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<mescroll-empty v-if="isShowEmpty" :option="mescroll.optUp.empty" @emptyclick="emptyClick"></mescroll-empty>
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<!-- 上拉加载区域 (下拉刷新时不显示,支付宝小程序子组件传参给子子组件仍报单项数据流的异常,暂时不通过mescroll-up组件实现)-->
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<!-- <mescroll-up v-if="mescroll.optUp.use && downLoadType !== 3" :option="mescroll.optUp" :type="upLoadType"></mescroll-up> -->
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<view class="mescroll-upwarp" :style="{'background':mescroll.optUp.bgColor,'color':mescroll.optUp.textColor}">
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<!-- 加载中 (此处不能用v-if,否则android小程序快速上拉可能会不断触发上拉回调) -->
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<view v-show="upLoadType===1">
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<view class="upwarp-progress mescroll-rotate"></view>
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<view class="upwarp-tip">{{ mescroll.optUp.textLoading }}</view>
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</view>
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<!-- 无数据 -->
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<view v-if="upLoadType===2" class="upwarp-nodata">{{ mescroll.optUp.textNoMore }}</view>
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</view>
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</view>
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<!-- 底部是否偏移TabBar的高度(仅H5端生效) -->
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<!-- #ifdef H5 -->
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<view v-if="bottombar && windowBottom>0" class="mescroll-bottombar" :style="{height: windowBottom+'px'}"></view>
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<!-- #endif -->
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<!-- 适配iPhoneX -->
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<view v-if="safearea" class="mescroll-safearea"></view>
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<!-- 回到顶部按钮 (fixed元素需写在transform外面,防止降级为absolute)-->
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<mescroll-top v-model="isShowToTop" :option="mescroll.optUp.toTop" @click="toTopClick"></mescroll-top>
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<!-- #ifdef MP-WEIXIN || MP-QQ || APP-PLUS || H5 -->
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<!-- renderjs的数据载体,不可写在mescroll-downwarp内部,避免use为false时,载体丢失,无法更新数据 -->
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<view :change:prop="renderBiz.propObserver" :prop="wxsProp"></view>
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<!-- #endif -->
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</view>
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</template>
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<!-- 微信小程序, QQ小程序, app, h5使用wxs -->
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<!-- #ifdef MP-WEIXIN || MP-QQ || APP-PLUS || H5 -->
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<script src="../../mescroll-uni/wxs/wxs.wxs" module="wxsBiz" lang="wxs"></script>
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<!-- #endif -->
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<!-- app, h5使用renderjs -->
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<!-- #ifdef APP-PLUS || H5 -->
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<script module="renderBiz" lang="renderjs">
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import renderBiz from '../../mescroll-uni/wxs/renderjs.js';
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export default {
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mixins: [renderBiz]
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}
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</script>
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<!-- #endif -->
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<script>
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import MeScroll from '../../mescroll-uni/mescroll-uni.js';
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import GlobalOption from './mescroll-uni-option.js';
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import MescrollEmpty from '../../mescroll-uni/components/mescroll-empty.vue';
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import MescrollTop from '../../mescroll-uni/components/mescroll-top.vue';
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import WxsMixin from '../../mescroll-uni/wxs/mixins.js';
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export default {
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mixins: [WxsMixin],
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components: {
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MescrollEmpty,
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MescrollTop
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},
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data() {
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return {
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mescroll: null, // mescroll实例
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downHight: 0, //下拉刷新: 容器高度
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downLoadType: 0, // 下拉刷新状态: 0(loading前), 1(inOffset), 2(outOffset), 3(showLoading), 4(endDownScroll)
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upLoadType: 0, // 上拉加载状态：0（loading前），1（loading中），2（没有更多了,显示END文本提示），3（没有更多了,不显示END文本提示）
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isShowEmpty: false, // 是否显示空布局
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isShowToTop: false, // 是否显示回到顶部按钮
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windowHeight: 0, // 可使用窗口的高度
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windowBottom: 0, // 可使用窗口的底部位置
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statusBarHeight: 0 // 状态栏高度
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};
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},
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props: {
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down: Object, // 下拉刷新的参数配置
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up: Object, // 上拉加载的参数配置
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top: [String, Number], // 下拉布局往下的偏移量 (支持20, "20rpx", "20px", "20%"格式的值, 其中纯数字则默认单位rpx, 百分比则相对于windowHeight)
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topbar: [Boolean, String], // top的偏移量是否加上状态栏高度, 默认false (使用场景:取消原生导航栏时,配置此项可留出状态栏的占位, 支持传入字符串背景,如色值,背景图,渐变)
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bottom: [String, Number], // 上拉布局往上的偏移量 (支持20, "20rpx", "20px", "20%"格式的值, 其中纯数字则默认单位rpx, 百分比则相对于windowHeight)
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safearea: Boolean, // bottom的偏移量是否加上底部安全区的距离, 默认false (需要适配iPhoneX时使用)
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height: [String, Number], // 指定mescroll最小高度,默认windowHeight,使列表不满屏仍可下拉
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bottombar:{ // 底部是否偏移TabBar的高度(默认仅在H5端的tab页生效)
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type: Boolean,
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default: true
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},
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sticky: Boolean // 是否支持sticky,默认false; 当值配置true时,需避免在mescroll-body标签前面加非定位的元素,否则下拉区域无法会隐藏
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},
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computed: {
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// mescroll最小高度,默认windowHeight,使列表不满屏仍可下拉
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minHeight(){
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return this.toPx(this.height || '100%') + 'px'
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},
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// 下拉布局往下偏移的距离 (px)
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numTop() {
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return this.toPx(this.top)
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},
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padTop() {
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return this.numTop + 'px';
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},
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// 上拉布局往上偏移 (px)
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numBottom() {
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return this.toPx(this.bottom);
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},
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padBottom() {
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return this.numBottom + 'px';
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},
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// 是否为重置下拉的状态
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isDownReset() {
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return this.downLoadType === 3 || this.downLoadType === 4;
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},
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// 过渡
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transition() {
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return this.isDownReset ? 'transform 300ms' : '';
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},
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translateY() {
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return this.downHight > 0 ? 'translateY(' + this.downHight + 'px)' : ''; // transform会使fixed失效,需注意把fixed元素写在mescroll之外
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},
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// 是否在加载中
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isDownLoading() {
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return this.downLoadType === 3;
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},
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// 旋转的角度
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downRotate() {
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return this.downLoadType === 2 ? 'rotate(-180deg)' : 'rotate(0deg)';
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},
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// 文本提示
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downText() {
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if(!this.mescroll) return "";
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switch (this.downLoadType) {
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case 1:
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return this.mescroll.optDown.textInOffset;
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case 2:
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return this.mescroll.optDown.textOutOffset;
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case 3:
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return this.mescroll.optDown.textLoading;
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case 4:
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return this.mescroll.isDownEndSuccess ? this.mescroll.optDown.textSuccess : this.mescroll.isDownEndSuccess==false ? this.mescroll.optDown.textErr : this.mescroll.optDown.textInOffset;
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default:
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return this.mescroll.optDown.textInOffset;
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}
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}
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},
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methods: {
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//number,rpx,upx,px,% --> px的数值
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toPx(num) {
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if (typeof num === 'string') {
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if (num.indexOf('px') !== -1) {
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if (num.indexOf('rpx') !== -1) {
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// "10rpx"
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num = num.replace('rpx', '');
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} else if (num.indexOf('upx') !== -1) {
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// "10upx"
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num = num.replace('upx', '');
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} else {
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// "10px"
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return Number(num.replace('px', ''));
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}
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} else if (num.indexOf('%') !== -1) {
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// 传百分比,则相对于windowHeight,传"10%"则等于windowHeight的10%
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let rate = Number(num.replace('%', '')) / 100;
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return this.windowHeight * rate;
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}
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}
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return num ? uni.upx2px(Number(num)) : 0;
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},
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// 点击空布局的按钮回调
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emptyClick() {
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this.$emit('emptyclick', this.mescroll);
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},
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// 点击回到顶部的按钮回调
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toTopClick() {
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this.mescroll.scrollTo(0, this.mescroll.optUp.toTop.duration); // 执行回到顶部
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this.$emit('topclick', this.mescroll); // 派发点击回到顶部按钮的回调
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}
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},
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// 使用created初始化mescroll对象; 如果用mounted部分css样式编译到H5会失效
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created() {
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let vm = this;
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let diyOption = {
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// 下拉刷新的配置
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down: {
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inOffset() {
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vm.downLoadType = 1; // 下拉的距离进入offset范围内那一刻的回调 (自定义mescroll组件时,此行不可删)
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},
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outOffset() {
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vm.downLoadType = 2; // 下拉的距离大于offset那一刻的回调 (自定义mescroll组件时,此行不可删)
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},
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onMoving(mescroll, rate, downHight) {
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// 下拉过程中的回调,滑动过程一直在执行;
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vm.downHight = downHight; // 设置下拉区域的高度 (自定义mescroll组件时,此行不可删)
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},
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showLoading(mescroll, downHight) {
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vm.downLoadType = 3; // 显示下拉刷新进度的回调 (自定义mescroll组件时,此行不可删)
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vm.downHight = downHight; // 设置下拉区域的高度 (自定义mescroll组件时,此行不可删)
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},
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beforeEndDownScroll(mescroll){
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vm.downLoadType = 4;
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return mescroll.optDown.beforeEndDelay // 延时结束的时长
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},
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endDownScroll() {
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vm.downLoadType = 4; // 结束下拉 (自定义mescroll组件时,此行不可删)
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vm.downHight = 0; // 设置下拉区域的高度 (自定义mescroll组件时,此行不可删)
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if(vm.downResetTimer) {clearTimeout(vm.downResetTimer); vm.downResetTimer = null} // 移除重置倒计时
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vm.downResetTimer = setTimeout(()=>{ // 过渡动画执行完毕后,需重置为0的状态,避免下次inOffset不及时显示textInOffset
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if(vm.downLoadType === 4) vm.downLoadType = 0
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},300)
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},
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// 派发下拉刷新的回调
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callback: function(mescroll) {
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vm.$emit('down', mescroll);
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}
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},
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// 上拉加载的配置
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up: {
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// 显示加载中的回调
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showLoading() {
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vm.upLoadType = 1;
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},
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// 显示无更多数据的回调
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showNoMore() {
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vm.upLoadType = 2;
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},
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// 隐藏上拉加载的回调
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hideUpScroll(mescroll) {
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vm.upLoadType = mescroll.optUp.hasNext ? 0 : 3;
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},
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// 空布局
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empty: {
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onShow(isShow) {
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// 显示隐藏的回调
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vm.isShowEmpty = isShow;
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}
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},
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// 回到顶部
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toTop: {
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onShow(isShow) {
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// 显示隐藏的回调
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vm.isShowToTop = isShow;
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}
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},
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// 派发上拉加载的回调
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callback: function(mescroll) {
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vm.$emit('up', mescroll);
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}
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}
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};
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MeScroll.extend(diyOption, GlobalOption); // 混入全局的配置
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let myOption = JSON.parse(JSON.stringify({down: vm.down,up: vm.up})); // 深拷贝,避免对props的影响
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MeScroll.extend(myOption, diyOption); // 混入具体界面的配置
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// 初始化MeScroll对象
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vm.mescroll = new MeScroll(myOption, true); // 传入true,标记body为滚动区域
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// init回调mescroll对象
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vm.$emit('init', vm.mescroll);
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// 设置高度
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const sys = uni.getSystemInfoSync();
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if (sys.windowHeight) vm.windowHeight = sys.windowHeight;
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||
|
|
if (sys.windowBottom) vm.windowBottom = sys.windowBottom;
|
||
|
|
if (sys.statusBarHeight) vm.statusBarHeight = sys.statusBarHeight;
|
||
|
|
// 使down的bottomOffset生效
|
||
|
|
vm.mescroll.setBodyHeight(sys.windowHeight);
|
||
|
|
|
||
|
|
// 因为使用的是page的scroll,这里需自定义scrollTo
|
||
|
|
vm.mescroll.resetScrollTo((y, t) => {
|
||
|
|
if(typeof y === 'string'){
|
||
|
|
// 滚动到指定view (y为css选择器)
|
||
|
|
setTimeout(()=>{ // 延时确保view已渲染; 不使用$nextTick
|
||
|
|
let selector;
|
||
|
|
if(y.indexOf('#')==-1 && y.indexOf('.')==-1){
|
||
|
|
selector = '#'+y // 不带#和. 则默认为id选择器
|
||
|
|
}else{
|
||
|
|
selector = y
|
||
|
|
// #ifdef APP-PLUS || H5 || MP-ALIPAY || MP-DINGTALK
|
||
|
|
if(y.indexOf('>>>')!=-1){ // 不支持跨自定义组件的后代选择器 (转为普通的选择器即可跨组件查询)
|
||
|
|
selector = y.split('>>>')[1].trim()
|
||
|
|
}
|
||
|
|
// #endif
|
||
|
|
}
|
||
|
|
uni.createSelectorQuery().select(selector).boundingClientRect(function(rect){
|
||
|
|
if (rect) {
|
||
|
|
let top = rect.top
|
||
|
|
top += vm.mescroll.getScrollTop()
|
||
|
|
uni.pageScrollTo({
|
||
|
|
scrollTop: top,
|
||
|
|
duration: t
|
||
|
|
})
|
||
|
|
} else{
|
||
|
|
console.error(selector + ' does not exist');
|
||
|
|
}
|
||
|
|
}).exec()
|
||
|
|
},30)
|
||
|
|
} else{
|
||
|
|
// 滚动到指定位置 (y必须为数字)
|
||
|
|
uni.pageScrollTo({
|
||
|
|
scrollTop: y,
|
||
|
|
duration: t
|
||
|
|
})
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
// 具体的界面如果不配置up.toTop.safearea,则取本vue的safearea值
|
||
|
|
if (vm.up && vm.up.toTop && vm.up.toTop.safearea != null) {} else {
|
||
|
|
vm.mescroll.optUp.toTop.safearea = vm.safearea;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
</script>
|
||
|
|
|
||
|
|
<style>
|
||
|
|
@import "../../mescroll-uni/mescroll-uni.css";
|
||
|
|
@import "../../mescroll-uni/components/mescroll-down.css";
|
||
|
|
@import "../../mescroll-uni/components/mescroll-up.css";
|
||
|
|
@import "./components/mescroll-down.css";
|
||
|
|
@import "./components/mescroll-up.css";
|
||
|
|
</style>
|