我想把这个js中的_doSyncDuration方法重写，怎么做
各位大佬，由于我写的脚本在视频播放完毕后，跳转网页时，总会不正常跳转，它会优先跳转到js脚本定义的下一个网址，我已经找到关键位置，问题出在 n.autoClickNext()。所以我想重写关键方法。已经找到了需要修改的方法是_doSyncDuration。以上关键字在下面的脚本中都找得到。但这种js脚本写法我第一次看到，还不太会。怎么重写？？下面是js脚本全部内容。```
define(["jquery", "underscore", "backbone", "dialogExtend", "text!tmpl/video/stop-e47b59c660.text", "pdfobject"], function(e, t, i, o, n, r) {
var s = i.View.extend({
el: ".video-wrapper",
initialize: function() {
var t = this.$("#video").children("div")
, i = t.attr("data-lessonId")
, o = this.GetQueryString("id");
o && (i = o),
e(".video-title").each(function(o) {
var n = e(this).attr("data-lessonId");
n == i && (e(".video-title").removeClass("on"),
e(this).addClass("on"),
t = e(this))
}),
this._findAllVideos();
var n = t.data("type")
, r = t.attr("data-id");
if (1 == n) {
var s = t.attr("data-fileid");
console.log(t);
var a = t.data("state")
, l = this.isFullscreen();
return l && this.xgplayer.exitFullscreen(),
void this.loadDocument(s, a)
}
if (r) {
var d = 0;
this.initPlayer(i, d, 0)
}
},
events: {
"click .video-title": "clickVideoHandler"
},
eachDomId: function(t) {
return e(".video-title").each(function(i) {
var o = e(this).attr("data-lessonId");
return o == t ? (e(".video-title").removeClass("on"),
e(this).addClass("on"),
e(this)) : void 0
}),
{}
},
packVideoQuality: function(e) {
var i = []
, o = e.urls;
return o && o.length > 0 ? (1 == e.videoType ? i.push({
name: "流畅",
url: o.url + "?token=" + e.token
}) : t.each(o, function(t) {
switch (t.quality) {
case "FLUENT":
i.push({
name: "流畅",
url: t.url + "?token=" + e.token
});
break;
case "SD":
i.push({
name: "标清",
url: t.url + "?token=" + e.token
});
break;
case "HD":
i.push({
name: "高清",
url: t.url + "?token=" + e.token
});
break;
case "FULL_HD":
i.push({
name: "超清",
url: t.url + "?token=" + e.token
})
}
}),
i) : void 0
},
initPlayer: function(e, i, o) {
var n = this
, r = t.findWhere(window.initlessons, {
id: e
});
if (r) {
if ("2" != r.transState) {
var s = this.isFullscreen();
s && this.xgplayer.exitFullscreen(),
this.xgplayer && this.xgplayer.forceDestroy(),
setTimeout(function() {
return n.xgplayer = null,
n.$("#video-Player").html("<div style='width:100%;margin-top:30%;text-align:center;font-size:15px;color:#f99933'>视频正在转码中...</div>"),
!1
}, 200)
}
var a = this.packVideoQuality(r);
this.playingVideo = r,
this.playingVideo.idx = i;
var l = this.xgplayer ? this.xgplayer.volume : .5
, d = r.urls ? r.urls.url + "?token=" + r.token : ""
, c = this.videos.length;
if (i + 1 == c)
var u = ["keyboard"];
else
var u = ["keyboard", "replay"];
var h = {
id: "video-Player",
url: d,
width: "100%",
height: "100%",
volume: l,
autoplay: !0,
lastPlayTimeHideDelay: 15,
definitionActive: "click",
closeVideoClick: !1,
videoBackground: {
isCustom: 1 == this.playingVideo.videoType ? !0 : !1
},
poster: r.urls ? r.urls.imageUrl : "",
ignores: u,
countTime: {
interval: 60,
cb: function(e) {
var t = formatUtil.getCookie("u-token")
, i = formatUtil.getCookie("ufo-urn");
3 != window.p.source && t && i && n.countTimeBack(e)
}
},
trying2Watch: {
maxTime: 3 == window.p.source ? 180 : 0,
cb: function() {
n.courseTestListen()
}
},
onTimeUpdate: function() {}
};
this.$("#video-Player").css("overflow", "hidden"),
0 != o && this.xgplayer ? this.xgplayer && this.xgplayer.switchVideo && this.xgplayer.switchVideo(h, function(e) {
n.xgplayer = e,
n.$("#video-Player").css("float", "left"),
a && a.length > 1 && n.xgplayer.emit("resourceReady", a),
n.registEventPlayer()
}) : (this.$("#video-Player").html(""),
this.xgplayer = grtPlayer(h),
a && a.length > 1 && this.xgplayer.emit("resourceReady", a),
this.registEventPlayer())
}
},
registEventPlayer: function() {
var e = this;
this.xgplayer.once("play", function() {
console.log("开始播放了====================3"),
e.recordCourseHitNum()
})
},
clickVideoHandler: function(t) {
var i = e(t.currentTarget)
, o = i.data("type")
, n = i.attr("data-lessonId")
, r = i.attr("data-parentId");
"615780598560169984" == r && (window.location.href = "https://tv.cctv.com/2020/12/27/VIDAkfdoj8E8LsTWYaWd7Cnk201227.shtml");
var s = i.attr("data-id");
i.attr("data-videoType");
if (!i.hasClass("on")) {
if (this.$(".video-title.on").removeClass("on"),
i.addClass("on"),
1 == o) {
var a = i.attr("data-fileId")
, l = i.data("state")
, d = this.isFullscreen();
return d && this.xgplayer.exitFullscreen(),
this.loadDocument(a, l),
void (this.xgplayer = null)
}
var c = 0;
this.videos.each(function(t, i) {
var o = e(this).attr("data-id");
s == o && (c = t)
}),
this.initPlayer(n, c, 1)
}
},
countTimeBack: function(e) {
var t = 0;
e && (t = e.time ? e.time : 0),
this._doSyncDuration.call(this, e.end, t)
},
_doSyncDuration: function(t, i) {
var n = this
, r = this.playingVideo.videoId
, s = this.playingVideo.progressId;
e.ajax({
url: "/services/member/study/progress",
dataType: "json",
type: "post",
_removeLoading: !0,
headers: {
"u-platformId": window.platformInfo.id
},
data: {
courseId: window.courseId,
videoId: r,
itemId: window.p.itemId,
segId: window.courseId,
isFinish: t,
type: 2,
progressId: s,
playProgress: i,
courseType: 1
},
success: function(e) {
e.success && (n.updateProgressRender(e.data, r),
t && n.autoClickNext())
},
error: function(e) {
var t = e.responseJSON.resultCode;
401 == t && o.alert("您已退出登录，请重新登录。", function() {
var e = window.app_servers.uCenterServer.host + window.app_servers.uCenterServer.path
, t = window.detailInfo ? window.detailInfo.orgId : "";
return document.location.href = e + "/login?service=" + encodeURIComponent(document.location) + "&oid=" + t,
!1
}),
3003 == t && n.manageTagHandler()
}
})
},
GetQueryString: function(e) {
var t = new RegExp("(^|&)" + e + "=([^&]*)(&|$)")
, i = window.location.search.substr(1).match(t);
return null != i ? unescape(i) : null
},
recordCourseHitNum: function() {
e.ajax({
url: "/services/course/public/course/course_hits/" + window.courseId,
dataType: "json",
_removeLoading: !0,
type: "post",
async: !0,
data: {
visitType: 1,
schemaType: 2
},
success: function(e) {
e.success
},
error: function(e) {
if (e && e.responseJSON) {
var t = "请求失败";
t = e.responseJSON.message || t,
console.error(t)
}
}
})
},
loadDocument: function(e, t) {
var i = this;
this.pluginType = 1,
this.trigger("Document_loaded"),
this.xgplayer && this.xgplayer.forceDestroy(),
setTimeout(function() {
return i.xgplayer = null,
2 != t ? void i.$("#video-Player").html("<div style='width:100%;margin-top:30%;text-align:center;font-size:18px;color:#f99933'>文档正在转码中...</div>") : void r.embed(window._ctx + "/tmpfile/pdffile?fid=" + e, "#video-Player", {
forcePDFJS: !0,
PDFJS_URL: window._ctx + "/lib/pdfjs/web/viewer.html"
})
}, 200)
},
isFullscreen: function() {
return document.fullscreenElement || document.msFullscreenElement || document.mozFullScreenElement || document.webkitFullscreenElement || !1
},
manageTagHandler: function() {
var e = this.isFullscreen();
e && this.xgplayer.exitFullscreen(),
this.xgplayer && this.xgplayer.pause();
var t = o.open({
content: n,
title: "",
closeBtn: 0,
btn: ["关闭页面", "刷新页面，继续学习"],
area: ["550px", "350px"],
yes: function() {
o.close(t),
-1 != navigator.userAgent.indexOf("Firefox") || -1 != navigator.userAgent.indexOf("Chrome") ? (window.location.href = "about:blank",
window.close()) : (window.opener = null,
window.open("", "_self"),
window.close())
},
cancel: function() {
location.reload()
}
})
},
updateProgressRender: function(e, t) {
var i = this
, o = parseFloat(e.progress);
if (progressPercent = parseInt(100 * o),
-1 != o) {
var n = t;
i.$(".catalog").find(".video-title").children(".four").text(progressPercent + "%")
}
},
autoClickNext: function() {
var e = this.videos.length
, t = this.playingVideo.idx;
if (0 != e && t != e - 1) {
var i = this.videos.eq(t + 1);
i.trigger("click")
}
},
_findAllVideos: function() {
var e = this.$(".video-title");
this.videos = e
},
courseTestListen: function() {
var t = this.isFullscreen();
t && this.xgplayer.exitFullscreen(),
this.xgplayer && (this.xgplayer.pause(),
this.xgplayer.currentTime = 0);
o.confirm("试听结束", {
btn: []
});
e(".layui-layer-content").css("text-align", "center")
},
render: function() {
this.vObj = this.$("#video").children("div").children("object"),
this.objId = this.vObj.attr("id");
this.$("#video-tabContent");
return e(".g-content-wrapper").css({
"min-height": e(window).height() - 49
}),
this.$("#video").css({
height: e(window).height() - 110 + "px"
}),
e(".video-wrapper .video-tab").css({
height: e(window).height() - 110 + "px"
}),
e(".video-tab-bd .catalog").css({
height: e(window).height() - 160 + "px"
}),
e(".video-tab-bd .note").css({
height: e(window).height() - 160 + "px"
}),
e(window).resize(function() {
e(".video-wrapper .video").css({
height: e(window).height() - 70 + 20 + "px"
}),
e(".video-tab-bd .catalog").css({
height: e(window).height() - 121 + 20 + "px"
}),
e(".video-tab-bd .note").css({
height: e(window).height() - 121 + 20 + "px"
}),
e(".video-wrapper .video-tab").css({
height: e(window).height() - 50 + 20 + "px"
})
}),
e(document).on("keyup", function() {
return 32 == event.keyCode ? !1 : void 0
}),
this
}
});
return new s
});
``` 看着有点像amd的模块导出方式
amd的默认模块名是文件名
可以尝试你通过油猴导出该文件直接篡改试试 看着有点像amd的模块导出方式
amd的默认模块名是文件名
可以尝试你通过油猴导出该文件直接篡改试试 还有一个思路，但是不一定能跑通
看amd里貌似引用了backbone的view extend
可以找到
```js
Model.extend = Collection.extend = Router.extend = View.extend = History.extend = extend;
```
这部分的源码是
```js
var extend = function(protoProps, staticProps) {
var parent = this;
var child;
// The constructor function for the new subclass is either defined by you
// (the "constructor" property in your `extend` definition), or defaulted
// by us to simply call the parent constructor.
if (protoProps && _.has(protoProps, 'constructor')) {
child = protoProps.constructor;
} else {
child = function(){ return parent.apply(this, arguments); };
}
// Add static properties to the constructor function, if supplied.
_.extend(child, parent, staticProps);
// Set the prototype chain to inherit from `parent`, without calling
// `parent`'s constructor function and add the prototype properties.
child.prototype = _.create(parent.prototype, protoProps);
child.prototype.constructor = child;
// Set a convenience property in case the parent's prototype is needed
// later.
child.__super__ = parent.prototype;
return child;
};
```
而_在amd情况下引入的是
```js
if (typeof define === 'function' && define.amd) {
define(['underscore', 'jquery', 'exports'], function(_, $, exports) {
// Export global even in AMD case in case this script is loaded with
// others that may still expect a global Backbone.
root.Backbone = factory(root, exports, _, $);
});
// Next for Node.js or CommonJS. jQuery may not be needed as a module.
}
```
调用的是underscore的库函数
而源码大概是
```js
_.has = function(obj, key) {
return hasOwnProperty.call(obj, key);
};
```
所以可以得出一个大概的结论
针对view的extend的prop进行protoProps的call劫持应该可以拿到protoProps对象 大佬，你写的内容我得消化消化，不会再请教 最简单的方法重写`jQuery.prototype.trigger`阻止点击事件
```js
autoClickNext: function() {
var e = this.videos.length
, t = this.playingVideo.idx;
if (0 != e && t != e - 1) {
var i = this.videos.eq(t + 1);
i.trigger("click")
}
},
``` 我得先把对象拿到，重写方法的话，确实有很多办法。这个AMD模块我没见过，让我学习学习，试一下。 各位大佬，我来反馈了。我把AMD相关的内容简单学习了下。3种方案实验结果：
导出篡改方式最直接暴力，能搞。
针对view的extend的prop进行protoProps的call劫持这个方案最高端，我没成功，extend没找到protoProps这个参数。
重写jQuery.prototype.trigger阻止点击事件这个方案最省事！ 话说这不是我提的问题么，怎么换成 王一之了。我在我的帖子找半天没找到 repisal 发表于 2024-10-15 23:44
各位大佬，我来反馈了。我把AMD相关的内容简单学习了下。3种方案实验结果：
导出篡改方式最直接暴力，能搞 ...
哥哥有兴趣可以开个帖子详细聊聊amd的导出导入劫持问题，这方面我犯懒还没写
{:4_98:}
哥哥写的还算详细的话可以进指南
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