From 2a5672af00ac05fb3075e9ee727abb43f978ebaa Mon Sep 17 00:00:00 2001 From: windy <1374721899@qq.com> Date: Thu, 23 Apr 2020 15:34:52 +0800 Subject: [PATCH] update --- src/base/tree/ztree/treerender.service.js | 123 ---------------------- 1 file changed, 123 deletions(-) delete mode 100644 src/base/tree/ztree/treerender.service.js diff --git a/src/base/tree/ztree/treerender.service.js b/src/base/tree/ztree/treerender.service.js deleted file mode 100644 index 37ef035b9..000000000 --- a/src/base/tree/ztree/treerender.service.js +++ /dev/null @@ -1,123 +0,0 @@ -/** - * @author windy - * @version 2.0 - * Created by windy on 2020/1/8 - */ - -!(function () { - BI.TreeRenderService = BI.inherit(BI.OB, { - _init: function () { - this.nodeLists = {}; - - this.id = this.options.id; - // renderService是否已经注册了滚动 - this.hasBinded = false; - - this.container = this.options.container; - }, - - _getNodeListBounds: function (tId) { - var nodeList = this.options.subNodeListGetter(tId)[0]; - return { - top: nodeList.offsetTop, - left: nodeList.offsetLeft, - width: nodeList.offsetWidth, - height: nodeList.offsetHeight - } - }, - - _getTreeContainerBounds: function () { - var nodeList = this.container[0]; - if (BI.isNotNull(nodeList)) { - return { - top: nodeList.offsetTop + nodeList.scrollTop, - left: nodeList.offsetLeft + nodeList.scrollLeft, - width: nodeList.offsetWidth, - height: nodeList.offsetHeight - }; - } - return {}; - }, - - _canNodePopulate: function (tId) { - if (this.nodeLists[tId].locked) { - return false; - } - // 获取ul, 即子节点列表的bounds - // 是否需要继续加载,只需要看子节点列表的下边界与container是否无交集 - var bounds = this._getNodeListBounds(tId); - var containerBounds = this._getTreeContainerBounds(tId); - // ul底部是不是漏出来了 - if (bounds.top + bounds.height < containerBounds.top + containerBounds.height) { - return true; - } - return false; - }, - - _isNodeInVisible: function (tId) { - var nodeList = this.options.subNodeListGetter(tId); - return nodeList.length === 0 || nodeList.css("display") === "none"; - }, - - pushNodeList: function (tId, populate) { - var self = this; - if (!BI.has(this.nodeLists, tId)) { - this.nodeLists[tId] = { - populate: BI.debounce(populate, 0), - options: { - times: 1 - }, - // 在上一次请求返回前, 通过滚动再次触发加载的时候, 不应该认为是下一次分页, 需要等待上次请求返回 - // 以保证顺序和请求次数的完整 - locked: false - }; - } else { - this.nodeLists[tId].locked = false; - } - if(!this.hasBinded) { - // console.log("绑定事件"); - this.hasBinded = true; - this.container && this.container.on("scroll", BI.debounce(function () { - self.refreshAllNodes(); - }, 30)); - } - }, - - refreshAllNodes: function () { - var self = this; - BI.each(this.nodeLists, function (tId) { - // 不展开的节点就不看了 - !self._isNodeInVisible(tId) && self.refreshNodes(tId); - }); - }, - - refreshNodes: function (tId) { - if (this._canNodePopulate(tId)) { - var nodeList = this.nodeLists[tId]; - nodeList.options.times++; - nodeList.locked = true; - nodeList.populate({ - times: nodeList.options.times - }); - } - }, - - removeNodeList: function (tId) { - delete this.nodeLists[tId]; - if (BI.size(this.nodeLists) === 0) { - this.clear(); - } - }, - - clear: function () { - var self = this; - BI.each(this.nodeLists, function (tId) { - self.removeNodeList(tId); - }); - this.nodeLists = {}; - // console.log("解绑事件"); - this.container.off("scroll"); - this.hasBinded = false; - } - }); -})(); \ No newline at end of file