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// -*- indent-tabs-mode: nil; js-indent-level: 2 -*-
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/**
* DownloadProgressListener "class" is used to help update download items shown
* in the Download Manager UI such as displaying amount transferred, transfer
* rate, and time left for each download.
*
* This class implements the nsIDownloadProgressListener interface.
*/
function DownloadProgressListener() {}
DownloadProgressListener.prototype = {
// nsISupports
QueryInterface: XPCOMUtils.generateQI([Ci.nsIDownloadProgressListener]),
// nsIDownloadProgressListener
onDownloadStateChange: function dlPL_onDownloadStateChange(aState, aDownload)
{
// Update window title in-case we don't get all progress notifications
onUpdateProgress();
let dl;
let state = aDownload.state;
switch (state) {
case nsIDM.DOWNLOAD_QUEUED:
prependList(aDownload);
break;
case nsIDM.DOWNLOAD_BLOCKED_POLICY:
prependList(aDownload);
// Should fall through, this is a final state but DOWNLOAD_QUEUED
// is skipped. See nsDownloadManager::AddDownload.
case nsIDM.DOWNLOAD_FAILED:
case nsIDM.DOWNLOAD_CANCELED:
case nsIDM.DOWNLOAD_BLOCKED_PARENTAL:
case nsIDM.DOWNLOAD_DIRTY:
case nsIDM.DOWNLOAD_FINISHED:
downloadCompleted(aDownload);
if (state == nsIDM.DOWNLOAD_FINISHED)
autoRemoveAndClose(aDownload);
break;
case nsIDM.DOWNLOAD_DOWNLOADING: {
dl = getDownload(aDownload.id);
// At this point, we know if we are an indeterminate download or not
dl.setAttribute("progressmode", aDownload.percentComplete == -1 ?
"undetermined" : "normal");
// As well as knowing the referrer
let referrer = aDownload.referrer;
if (referrer)
dl.setAttribute("referrer", referrer.spec);
break;
}
}
// autoRemoveAndClose could have already closed our window...
try {
if (!dl)
dl = getDownload(aDownload.id);
// Update to the new state
dl.setAttribute("state", state);
// Update ui text values after switching states
updateTime(dl);
updateStatus(dl);
updateButtons(dl);
} catch (e) { }
},
onProgressChange: function dlPL_onProgressChange(aWebProgress, aRequest,
aCurSelfProgress,
aMaxSelfProgress,
aCurTotalProgress,
aMaxTotalProgress, aDownload)
{
var download = getDownload(aDownload.id);
// Update this download's progressmeter
if (aDownload.percentComplete != -1) {
download.setAttribute("progress", aDownload.percentComplete);
// Dispatch ValueChange for a11y
let event = document.createEvent("Events");
event.initEvent("ValueChange", true, true);
document.getAnonymousElementByAttribute(download, "anonid", "progressmeter")
.dispatchEvent(event);
}
// Update the progress so the status can be correctly updated
download.setAttribute("currBytes", aDownload.amountTransferred);
download.setAttribute("maxBytes", aDownload.size);
// Update the rest of the UI (bytes transferred, bytes total, download rate,
// time remaining).
updateStatus(download, aDownload);
// Update window title
onUpdateProgress();
},
onStateChange: function(aWebProgress, aRequest, aState, aStatus, aDownload)
{
},
onSecurityChange: function(aWebProgress, aRequest, aState, aDownload)
{
}
};
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