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components/z-paging/wxs/z-paging-renderjs.js

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+// [z-paging]使用renderjs在app-vue和h5中对touchmove事件冒泡进行处理
+
+import u from '../js/z-paging-utils'
+var data = {
+	renderScrollTop: 0,
+	renderUsePageScroll: false,
+	startY: 0,
+	isTouchFromZPaging: false
+}
+
+var currentVm = null;
+
+export default {
+	mounted() {
+		this._handleTouch();
+		// #ifdef APP-VUE
+		this.$ownerInstance && this.$ownerInstance.callMethod('_checkVirtualListScroll');
+		// #endif
+	},
+	methods: {
+		//接收逻辑层发送的数据
+		renderPropScrollTopChange(newVal, oldVal, ownerVm, vm) {
+			currentVm = ownerVm;
+			data.renderScrollTop = newVal;
+		},
+		renderPropUsePageScrollChange(newVal, oldVal, ownerVm, vm) {
+			if(newVal !== -1){
+				data.renderUsePageScroll = newVal;
+			}
+		},
+		//拦截处理touch事件
+		_handleTouch() {
+			if (window && !window.$zPagingRenderJsInited) {
+				window.$zPagingRenderJsInited = true;
+				window.addEventListener('touchstart', this._handleTouchstart, {
+					passive: true
+				})
+				window.addEventListener('touchmove', this._handleTouchmove, {
+					passive: false
+				})
+			}
+		},
+		_handleTouchstart(e) {
+			const touch = u.getTouch(e);
+			data.startY = touch.touchY;
+			data.isTouchFromZPaging = u.getTouchFromZPaging(e.target);
+		},
+		_handleTouchmove(e) {
+			const touch = u.getTouch(e);
+			var moveY = touch.touchY - data.startY;
+			//v2.1.4起删除条件：(data.isTouchFromZPaging && data.renderIsIos && !data.renderUsePageScroll && moveY < 0)
+			if (data.isTouchFromZPaging && data.renderScrollTop < 1 && moveY > 0) {
+				if (e.cancelable && !e.defaultPrevented) {
+					e.preventDefault();
+				}
+			}
+		},
+		_removeAllEventListener(){
+			window.removeEventListener('touchstart');
+			window.removeEventListener('touchmove');
+		}
+	}
+};