Question

有人可以告诉我如何注册Mozilla / Firefox DownloadList视图吗？

这就是我正在使用的：但它完全破坏了下载管理器：

const {Cc,Ci,Cu} = require("chrome");
Cu.import("resource://gre/modules/XPCOMUtils.jsm", this);
XPCOMUtils.defineLazyModuleGetter(this, "Downloads", "resource://gre/modules/Downloads.jsm");

let view = {
    onDownloadAdded: download => console.log("Added", download),
    onDownloadChanged: download => console.log("Changed", download),
    onDownloadRemoved: download => console.log("Removed", download),
};

console.log('Test1');
Downloads.getList(Downloads.ALL)
         .then(list => {
             console.log('Test2');
             list.addView(view);
             console.log('Test3');
         });

不幸的是，执行此代码后，下载似乎彻底破坏了：它甚至不允许再下载。

一切似乎进展顺利：

I/GeckoConsole( 8723): Test1
I/GeckoConsole( 8723): Test2
I/GeckoConsole( 8723): Test3

但我没有看到Downloads中的DownloadList也应该记录下来。

当我尝试下载另一个文件时，我得到：

W/GeckoConsole( 8723): [JavaScript Error: "[Exception... "Component returned fai
lure code: 0x80004005 (NS_ERROR_FAILURE) [nsITransfer.init]"  nsresult: "0x80004
005 (NS_ERROR_FAILURE)"  location: "JS frame :: chrome://global/content/contentA
reaUtils.js :: internalPersist :: line 47"  data: no]" {file: "resource://gre/mo
dules/Promise.jsm -> resource://gre/modules/Promise-backend.js" line: 79}]

Downloads.jam：如何使用DownloadList.addView（查看）

0 个答案: