mylomen-server/static/js/event/impl/MutationObserverImpl.js

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2024-11-05 22:43:34 +08:00
"use strict";
/**
* 使用样式事件
*/
define(function (require, exports, module) {
function handle(mutationList) {
for (let mutation of mutationList) {
switch (mutation.type) {
case "childList":
addNewP(mutation);
break;
case "characterData":
updateText(mutation);
break;
default: {
other(mutation);
}
}
}
}
function other(mutation) {
console.log("mutation : ", mutation,
// 观察的变动类型attributes、characterData或者childList
"\ntype", mutation.type,
//发生变动的DOM节点。
"\ntarget", mutation.target,
"\ntargetParent", mutation.target.parentElement, mutation.target.parentNode,
//新增的DOM节点。
"\naddedNodes", mutation.addedNodes,
//删除的DOM节点。
"\nremovedNodes", mutation.removedNodes,
//前一个同级节点如果没有则返回null。
"\npreviousSibling", mutation.previousSibling,
//下一个同级节点如果没有则返回null。
"\nnextSibling", mutation.nextSibling,
//发生变动的属性。如果设置了attributeFilter则只返回预先指定的属性。
"\nattributeName", mutation.attributeName,
//变动前的值。这个属性只对attribute和characterData变动有效如果发生childList变动则返回null。
"\noldValue", mutation.oldValue);
}
function addNewP(mutation) {
let target = mutation.target;
if (target.nodeName === "DIV" && mutation.previousSibling !== null) {
console.log(
"target: ", target,
"\nnodeType: ", target.nodeType,
"\nnodeName: ", target.nodeName,
"\ndata: ", target.value,
"\n next: ", mutation.previousSibling.nextSibling
)
let utils = require("../../common/utils");
let ctx = require("../../common/ctx");
let curP = mutation.previousSibling.nextSibling;
if (curP !== undefined && curP !== null) {
curP.id = utils.Uuid(ctx.usn, ctx.docType);
curP.setAttribute("data-order", ctx.incrementNumThenReturn());
}
}
}
function updateText(mutation) {
let target = mutation.target;
if (target.nodeType === 3 && target.nodeName === "#text") {
// console.log(
// "target: ", target,
// "\nnodeType: ", target.nodeType,
// "\nnodeName: ", target.nodeName,
// "\ndata: ", target.value,
// "\nparentNode: ", target.parentNode,
// "\nparentNode_parentNode: ", target.parentNode.parentNode,
// )
// let curSpan = target.parentNode;
// let curP = target.parentNode.parentNode;
} else {
other(mutation);
}
}
//导出
exports.handle = handle;
});