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download.jsm + Addon SDK - https://developer.mozilla.org/en-US/docs/Mozilla/JavaScript_code_modules/Downloads.jsm
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/* | |
Copyright 2012 Christopher Hoobin. All rights reserved. | |
Redistribution and use in source and binary forms, with or without | |
modification, are permitted provided that the following conditions are | |
met: | |
1. Redistributions of source code must retain the above copyright | |
notice, this list of conditions and the following disclaimer. | |
2. Redistributions in binary form must reproduce the above | |
copyright notice, this list of conditions and the following | |
disclaimer in the documentation and/or other materials provided | |
with the distribution. | |
THIS SOFTWARE IS PROVIDED BY CHRISTOPHER HOOBIN ''AS IS'' AND ANY | |
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL CHRISTOPHER HOOBIN OR | |
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | |
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | |
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
The views and conclusions contained in the software and documentation | |
are those of the authors and should not be interpreted as representing | |
official policies, either expressed or implied, of Christopher Hoobin. | |
*/ | |
var { Ci,Cu,Cc } = require('chrome'); | |
var data = require("sdk/self").data; | |
const { defer } = require('sdk/core/promise'); | |
Cu.import("resource://gre/modules/Services.jsm"); | |
Cu.import("resource://gre/modules/Downloads.jsm"); | |
Cu.import("resource://gre/modules/osfile.jsm") | |
Cu.import("resource://gre/modules/Task.jsm"); | |
/** | |
* ``saveURL`` Util | |
* @param {Window} window | |
* @param {nsIURL} sourceURI - download url | |
* @param {nsIURL} fileURI - path for save | |
* @param {string} filename - filename for save | |
* @return {promise} promise | |
*/ | |
var saveFile = function (window, sourceURI, fileURI, filename) { | |
var deferred = defer(); | |
Task.spawn(function () { | |
let list = yield Downloads.getList(Downloads.ALL); | |
let view = { | |
onDownloadChanged: function (aDownload) { | |
aDownload.whenSucceeded().then(function () { | |
var limitSize = 1000 * 1000;// 1000 * 1000Byte | |
if (aDownload.totalBytes > limitSize) { | |
deferred.resolve(aDownload); | |
} else { | |
deferred.reject(new Error(aDownload)); | |
} | |
}); | |
} | |
}; | |
yield list.addView(view); | |
try { | |
let download = yield Downloads.createDownload({ | |
source: sourceURI, | |
target: fileURI | |
}); | |
list.add(download); | |
try { | |
download.start(); | |
var notifications = require("sdk/notifications"); | |
notifications.notify({ | |
title: "Download Download", | |
text: "Start " + filename, | |
iconURL: data.url("icon.ico") | |
}); | |
} catch(e) { | |
deferred.reject(e); | |
} | |
} catch (e){ | |
deferred.reject(e); | |
} | |
}).then(null, Cu.reportError); | |
return deferred.promise; | |
}; | |
exports.saveFile = saveFile; |
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diff : https://gist.github.com/azu/9094358/revisions