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gecko/toolkit/mozapps/downloads/content/downloads.js

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# -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
# ***** BEGIN LICENSE BLOCK *****
# Version: MPL 1.1/GPL 2.0/LGPL 2.1
#
# The contents of this file are subject to the Mozilla Public License Version
# 1.1 (the "License"); you may not use this file except in compliance with
# the License. You may obtain a copy of the License at
# http://www.mozilla.org/MPL/
#
# Software distributed under the License is distributed on an "AS IS" basis,
# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
# for the specific language governing rights and limitations under the
# License.
#
# The Original Code is Mozilla.org Code.
#
# The Initial Developer of the Original Code is
# Netscape Communications Corporation.
# Portions created by the Initial Developer are Copyright (C) 2001
# the Initial Developer. All Rights Reserved.
#
# Contributor(s):
# Blake Ross <blakeross@telocity.com> (Original Author)
# Ben Goodger <ben@bengoodger.com> (v2.0)
# Dan Mosedale <dmose@mozilla.org>
# Fredrik Holmqvist <thesuckiestemail@yahoo.se>
# Josh Aas <josh@mozilla.com>
# Shawn Wilsher <me@shawnwilsher.com> (v3.0)
# Edward Lee <edward.lee@engineering.uiuc.edu>
# Ehsan Akhgari <ehsan.akhgari@gmail.com>
#
# Alternatively, the contents of this file may be used under the terms of
# either the GNU General Public License Version 2 or later (the "GPL"), or
# the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
# in which case the provisions of the GPL or the LGPL are applicable instead
# of those above. If you wish to allow use of your version of this file only
# under the terms of either the GPL or the LGPL, and not to allow others to
# use your version of this file under the terms of the MPL, indicate your
# decision by deleting the provisions above and replace them with the notice
# and other provisions required by the GPL or the LGPL. If you do not delete
# the provisions above, a recipient may use your version of this file under
# the terms of any one of the MPL, the GPL or the LGPL.
#
# ***** END LICENSE BLOCK *****
////////////////////////////////////////////////////////////////////////////////
//// Globals
const PREF_BDM_CLOSEWHENDONE = "browser.download.manager.closeWhenDone";
const PREF_BDM_ALERTONEXEOPEN = "browser.download.manager.alertOnEXEOpen";
const nsLocalFile = Components.Constructor("@mozilla.org/file/local;1",
"nsILocalFile", "initWithPath");
var Cc = Components.classes;
var Ci = Components.interfaces;
let Cu = Components.utils;
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
Cu.import("resource://gre/modules/DownloadUtils.jsm");
Cu.import("resource://gre/modules/PluralForm.jsm");
const nsIDM = Ci.nsIDownloadManager;
let gDownloadManager = Cc["@mozilla.org/download-manager;1"].getService(nsIDM);
let gDownloadListener = null;
let gDownloadsView = null;
let gSearchBox = null;
let gSearchTerms = [];
let gBuilder = 0;
// This variable is used when performing commands on download items and gives
// the command the ability to do something after all items have been operated
// on. The following convention is used to handle the value of the variable:
// whenever we aren't performing a command, the value is |undefined|; just
// before executing commands, the value will be set to |null|; and when
// commands want to create a callback, they set the value to be a callback
// function to be executed after all download items have been visited.
let gPerformAllCallback;
// Control the performance of the incremental list building by setting how many
// milliseconds to wait before building more of the list and how many items to
// add between each delay.
const gListBuildDelay = 300;
const gListBuildChunk = 3;
// Array of download richlistitem attributes to check when searching
const gSearchAttributes = [
"target",
"status",
"dateTime",
];
// If the user has interacted with the window in a significant way, we should
// not auto-close the window. Tough UI decisions about what is "significant."
var gUserInteracted = false;
// These strings will be converted to the corresponding ones from the string
// bundle on startup.
let gStr = {
paused: "paused",
cannotPause: "cannotPause",
doneStatus: "doneStatus",
doneSize: "doneSize",
doneSizeUnknown: "doneSizeUnknown",
stateFailed: "stateFailed",
stateCanceled: "stateCanceled",
stateBlockedParentalControls: "stateBlocked",
stateBlockedPolicy: "stateBlockedPolicy",
stateDirty: "stateDirty",
yesterday: "yesterday",
monthDate: "monthDate",
downloadsTitleFiles: "downloadsTitleFiles",
downloadsTitlePercent: "downloadsTitlePercent",
fileExecutableSecurityWarningTitle: "fileExecutableSecurityWarningTitle",
fileExecutableSecurityWarningDontAsk: "fileExecutableSecurityWarningDontAsk"
};
// The statement to query for downloads that are active or match the search
let gStmt = null;
////////////////////////////////////////////////////////////////////////////////
//// Start/Stop Observers
function downloadCompleted(aDownload)
{
// The download is changing state, so update the clear list button
updateClearListButton();
// Wrap this in try...catch since this can be called while shutting down...
// it doesn't really matter if it fails then since well.. we're shutting down
// and there's no UI to update!
try {
let dl = getDownload(aDownload.id);
// Update attributes now that we've finished
dl.setAttribute("startTime", Math.round(aDownload.startTime / 1000));
dl.setAttribute("endTime", Date.now());
dl.setAttribute("currBytes", aDownload.amountTransferred);
dl.setAttribute("maxBytes", aDownload.size);
// Move the download below active if it should stay in the list
if (downloadMatchesSearch(dl)) {
// Iterate down until we find a non-active download
let next = dl.nextSibling;
while (next && next.inProgress)
next = next.nextSibling;
// Move the item
gDownloadsView.insertBefore(dl, next);
} else {
removeFromView(dl);
}
// getTypeFromFile fails if it can't find a type for this file.
try {
// Refresh the icon, so that executable icons are shown.
var mimeService = Cc["@mozilla.org/mime;1"].
getService(Ci.nsIMIMEService);
var contentType = mimeService.getTypeFromFile(aDownload.targetFile);
var listItem = getDownload(aDownload.id)
var oldImage = listItem.getAttribute("image");
// Tacking on contentType bypasses cache
listItem.setAttribute("image", oldImage + "&contentType=" + contentType);
} catch (e) { }
if (gDownloadManager.activeDownloadCount == 0)
document.title = document.documentElement.getAttribute("statictitle");
}
catch (e) { }
}
function autoRemoveAndClose(aDownload)
{
var pref = Cc["@mozilla.org/preferences-service;1"].
getService(Ci.nsIPrefBranch);
if (gDownloadManager.activeDownloadCount == 0) {
// For the moment, just use the simple heuristic that if this window was
// opened by the download process, rather than by the user, it should
// auto-close if the pref is set that way. If the user opened it themselves,
// it should not close until they explicitly close it. Additionally, the
// preference to control the feature may not be set, so defaulting to
// keeping the window open.
let autoClose = false;
try {
autoClose = pref.getBoolPref(PREF_BDM_CLOSEWHENDONE);
} catch (e) { }
var autoOpened =
!window.opener || window.opener.location.href == window.location.href;
if (autoClose && autoOpened && !gUserInteracted) {
gCloseDownloadManager();
return true;
}
}
return false;
}
// This function can be overwritten by extensions that wish to place the
// Download Window in another part of the UI.
function gCloseDownloadManager()
{
window.close();
}
////////////////////////////////////////////////////////////////////////////////
//// Download Event Handlers
function cancelDownload(aDownload)
{
gDownloadManager.cancelDownload(aDownload.getAttribute("dlid"));
// XXXben -
// If we got here because we resumed the download, we weren't using a temp file
// because we used saveURL instead. (this is because the proper download mechanism
// employed by the helper app service isn't fully accessible yet... should be fixed...
// talk to bz...)
// the upshot is we have to delete the file if it exists.
var f = getLocalFileFromNativePathOrUrl(aDownload.getAttribute("file"));
if (f.exists())
f.remove(false);
}
function pauseDownload(aDownload)
{
var id = aDownload.getAttribute("dlid");
gDownloadManager.pauseDownload(id);
}
function resumeDownload(aDownload)
{
gDownloadManager.resumeDownload(aDownload.getAttribute("dlid"));
}
function removeDownload(aDownload)
{
gDownloadManager.removeDownload(aDownload.getAttribute("dlid"));
}
function retryDownload(aDownload)
{
removeFromView(aDownload);
gDownloadManager.retryDownload(aDownload.getAttribute("dlid"));
}
function showDownload(aDownload)
{
var f = getLocalFileFromNativePathOrUrl(aDownload.getAttribute("file"));
try {
// Show the directory containing the file and select the file
f.reveal();
} catch (e) {
// If reveal fails for some reason (e.g., it's not implemented on unix or
// the file doesn't exist), try using the parent if we have it.
let parent = f.parent.QueryInterface(Ci.nsILocalFile);
if (!parent)
return;
try {
// "Double click" the parent directory to show where the file should be
parent.launch();
} catch (e) {
// If launch also fails (probably because it's not implemented), let the
// OS handler try to open the parent
openExternal(parent);
}
}
}
function onDownloadDblClick(aEvent)
{
// Only do the default action for double primary clicks
if (aEvent.button == 0 && aEvent.target.selected)
doDefaultForSelected();
}
function openDownload(aDownload)
{
var f = getLocalFileFromNativePathOrUrl(aDownload.getAttribute("file"));
if (f.isExecutable()) {
var dontAsk = false;
var pref = Cc["@mozilla.org/preferences-service;1"].
getService(Ci.nsIPrefBranch);
try {
dontAsk = !pref.getBoolPref(PREF_BDM_ALERTONEXEOPEN);
} catch (e) { }
#ifdef XP_WIN
// On Vista and above, we rely on native security prompting for
// downloaded content.
try {
var sysInfo = Cc["@mozilla.org/system-info;1"].
getService(Ci.nsIPropertyBag2);
if (parseFloat(sysInfo.getProperty("version")) >= 6)
dontAsk = true;
} catch (ex) { }
#endif
if (!dontAsk) {
var strings = document.getElementById("downloadStrings");
var name = aDownload.getAttribute("target");
var message = strings.getFormattedString("fileExecutableSecurityWarning", [name, name]);
let title = gStr.fileExecutableSecurityWarningTitle;
let dontAsk = gStr.fileExecutableSecurityWarningDontAsk;
var promptSvc = Cc["@mozilla.org/embedcomp/prompt-service;1"].
getService(Ci.nsIPromptService);
var checkbox = { value: false };
var open = promptSvc.confirmCheck(window, title, message, dontAsk, checkbox);
if (!open)
return;
pref.setBoolPref(PREF_BDM_ALERTONEXEOPEN, !checkbox.value);
}
}
try {
f.launch();
} catch (ex) {
// if launch fails, try sending it through the system's external
// file: URL handler
openExternal(f);
}
}
function openReferrer(aDownload)
{
openURL(getReferrerOrSource(aDownload));
}
function copySourceLocation(aDownload)
{
var uri = aDownload.getAttribute("uri");
var clipboard = Cc["@mozilla.org/widget/clipboardhelper;1"].
getService(Ci.nsIClipboardHelper);
// Check if we should initialize a callback
if (gPerformAllCallback === null) {
let uris = [];
gPerformAllCallback = function(aURI) aURI ? uris.push(aURI) :
clipboard.copyString(uris.join("\n"));
}
// We have a callback to use, so use it to add a uri
if (typeof gPerformAllCallback == "function")
gPerformAllCallback(uri);
else {
// It's a plain copy source, so copy it
clipboard.copyString(uri);
}
}
/**
* Remove the currently shown downloads from the download list.
*/
function clearDownloadList() {
// Clear the whole list if there's no search
if (gSearchTerms == "") {
gDownloadManager.cleanUp();
return;
}
// Remove each download starting from the end until we hit a download
// that is in progress
let item;
while ((item = gDownloadsView.lastChild) && !item.inProgress)
removeDownload(item);
// Clear the input as if the user did it and move focus to the list
gSearchBox.value = "";
gSearchBox.doCommand();
gDownloadsView.focus();
}
// This is called by the progress listener.
var gLastComputedMean = -1;
var gLastActiveDownloads = 0;
function onUpdateProgress()
{
let numActiveDownloads = gDownloadManager.activeDownloadCount;
// Use the default title and reset "last" values if there's no downloads
if (numActiveDownloads == 0) {
document.title = document.documentElement.getAttribute("statictitle");
gLastComputedMean = -1;
gLastActiveDownloads = 0;
return;
}
// Establish the mean transfer speed and amount downloaded.
var mean = 0;
var base = 0;
var dls = gDownloadManager.activeDownloads;
while (dls.hasMoreElements()) {
let dl = dls.getNext().QueryInterface(Ci.nsIDownload);
if (dl.percentComplete < 100 && dl.size > 0) {
mean += dl.amountTransferred;
base += dl.size;
}
}
// Calculate the percent transferred, unless we don't have a total file size
let title = gStr.downloadsTitlePercent;
if (base == 0)
title = gStr.downloadsTitleFiles;
else
mean = Math.floor((mean / base) * 100);
// Update title of window
if (mean != gLastComputedMean || gLastActiveDownloads != numActiveDownloads) {
gLastComputedMean = mean;
gLastActiveDownloads = numActiveDownloads;
// Get the correct plural form and insert number of downloads and percent
title = PluralForm.get(numActiveDownloads, title);
title = replaceInsert(title, 1, numActiveDownloads);
title = replaceInsert(title, 2, mean);
document.title = title;
}
}
////////////////////////////////////////////////////////////////////////////////
//// Startup, Shutdown
function Startup()
{
gDownloadsView = document.getElementById("downloadView");
gSearchBox = document.getElementById("searchbox");
// convert strings to those in the string bundle
let (sb = document.getElementById("downloadStrings")) {
let getStr = function(string) sb.getString(string);
for (let [name, value] in Iterator(gStr))
gStr[name] = typeof value == "string" ? getStr(value) : value.map(getStr);
}
initStatement();
buildDownloadList(true);
// The DownloadProgressListener (DownloadProgressListener.js) handles progress
// notifications.
gDownloadListener = new DownloadProgressListener();
gDownloadManager.addListener(gDownloadListener);
// If the UI was displayed because the user interacted, we need to make sure
// we update gUserInteracted accordingly.
if (window.arguments[1] == Ci.nsIDownloadManagerUI.REASON_USER_INTERACTED)
gUserInteracted = true;
// downloads can finish before Startup() does, so check if the window should
// close and act accordingly
if (!autoRemoveAndClose())
gDownloadsView.focus();
let obs = Cc["@mozilla.org/observer-service;1"].
getService(Ci.nsIObserverService);
obs.addObserver(gDownloadObserver, "download-manager-remove-download", false);
obs.addObserver(gDownloadObserver, "private-browsing", false);
// Clear the search box and move focus to the list on escape from the box
gSearchBox.addEventListener("keypress", function(e) {
if (e.keyCode == e.DOM_VK_ESCAPE) {
// Move focus to the list instead of closing the window
gDownloadsView.focus();
e.preventDefault();
}
}, false);
}
function Shutdown()
{
gDownloadManager.removeListener(gDownloadListener);
let obs = Cc["@mozilla.org/observer-service;1"].
getService(Ci.nsIObserverService);
obs.removeObserver(gDownloadObserver, "private-browsing");
obs.removeObserver(gDownloadObserver, "download-manager-remove-download");
clearTimeout(gBuilder);
gStmt.reset();
gStmt.finalize();
}
let gDownloadObserver = {
observe: function gdo_observe(aSubject, aTopic, aData) {
switch (aTopic) {
case "download-manager-remove-download":
// A null subject here indicates "remove multiple", so we just rebuild.
if (!aSubject) {
// Rebuild the default view
buildDownloadList(true);
break;
}
// Otherwise, remove a single download
let id = aSubject.QueryInterface(Ci.nsISupportsPRUint32);
let dl = getDownload(id.data);
removeFromView(dl);
break;
case "private-browsing":
if (aData == "enter" || aData == "exit") {
// We need to reset the title here, because otherwise the title of
// the download manager would still reflect the progress of current
// active downloads, if any, after switching the private browsing
// mode, even though the downloads will no longer be accessible.
// If any download is auto-started after switching the private
// browsing mode, the title will be updated as needed by the progress
// listener.
document.title = document.documentElement.getAttribute("statictitle");
// We might get this notification before the download manager
// service, so the new database connection might not be ready
// yet. Defer this until all private-browsing notifications
// have been processed.
setTimeout(function() {
initStatement();
buildDownloadList(true);
}, 0);
}
break;
}
}
};
////////////////////////////////////////////////////////////////////////////////
//// View Context Menus
var gContextMenus = [
// DOWNLOAD_DOWNLOADING
[
"menuitem_pause"
, "menuitem_cancel"
, "menuseparator"
, "menuitem_show"
, "menuseparator"
, "menuitem_openReferrer"
, "menuitem_copyLocation"
, "menuseparator"
, "menuitem_selectAll"
],
// DOWNLOAD_FINISHED
[
"menuitem_open"
, "menuitem_show"
, "menuseparator"
, "menuitem_openReferrer"
, "menuitem_copyLocation"
, "menuseparator"
, "menuitem_selectAll"
, "menuseparator"
, "menuitem_removeFromList"
],
// DOWNLOAD_FAILED
[
"menuitem_retry"
, "menuseparator"
, "menuitem_openReferrer"
, "menuitem_copyLocation"
, "menuseparator"
, "menuitem_selectAll"
, "menuseparator"
, "menuitem_removeFromList"
],
// DOWNLOAD_CANCELED
[
"menuitem_retry"
, "menuseparator"
, "menuitem_openReferrer"
, "menuitem_copyLocation"
, "menuseparator"
, "menuitem_selectAll"
, "menuseparator"
, "menuitem_removeFromList"
],
// DOWNLOAD_PAUSED
[
"menuitem_resume"
, "menuitem_cancel"
, "menuseparator"
, "menuitem_show"
, "menuseparator"
, "menuitem_openReferrer"
, "menuitem_copyLocation"
, "menuseparator"
, "menuitem_selectAll"
],
// DOWNLOAD_QUEUED
[
"menuitem_cancel"
, "menuseparator"
, "menuitem_show"
, "menuseparator"
, "menuitem_openReferrer"
, "menuitem_copyLocation"
, "menuseparator"
, "menuitem_selectAll"
],
// DOWNLOAD_BLOCKED_PARENTAL
[
"menuitem_openReferrer"
, "menuitem_copyLocation"
, "menuseparator"
, "menuitem_selectAll"
, "menuseparator"
, "menuitem_removeFromList"
],
// DOWNLOAD_SCANNING
[
"menuitem_show"
, "menuseparator"
, "menuitem_openReferrer"
, "menuitem_copyLocation"
, "menuseparator"
, "menuitem_selectAll"
],
// DOWNLOAD_DIRTY
[
"menuitem_openReferrer"
, "menuitem_copyLocation"
, "menuseparator"
, "menuitem_selectAll"
, "menuseparator"
, "menuitem_removeFromList"
],
// DOWNLOAD_BLOCKED_POLICY
[
"menuitem_openReferrer"
, "menuitem_copyLocation"
, "menuseparator"
, "menuitem_selectAll"
, "menuseparator"
, "menuitem_removeFromList"
]
];
function buildContextMenu(aEvent)
{
if (aEvent.target.id != "downloadContextMenu")
return false;
var popup = document.getElementById("downloadContextMenu");
while (popup.hasChildNodes())
popup.removeChild(popup.firstChild);
if (gDownloadsView.selectedItem) {
let dl = gDownloadsView.selectedItem;
let idx = parseInt(dl.getAttribute("state"));
if (idx < 0)
idx = 0;
var menus = gContextMenus[idx];
for (let i = 0; i < menus.length; ++i) {
let menuitem = document.getElementById(menus[i]).cloneNode(true);
let cmd = menuitem.getAttribute("cmd");
if (cmd)
menuitem.disabled = !gDownloadViewController.isCommandEnabled(cmd, dl);
popup.appendChild(menuitem);
}
return true;
}
return false;
}
////////////////////////////////////////////////////////////////////////////////
//// Drag and Drop
var gDownloadDNDObserver =
{
onDragOver: function (aEvent)
{
var types = aEvent.dataTransfer.types;
if (types.contains("text/uri-list") ||
types.contains("text/x-moz-url") ||
types.contains("text/plain"))
aEvent.preventDefault();
},
onDrop: function(aEvent)
{
var dt = aEvent.dataTransfer;
var url = dt.getData("URL");
var name;
if (!url) {
url = dt.getData("text/x-moz-url") || dt.getData("text/plain");
[url, name] = url.split("\n");
}
if (url)
saveURL(url, name ? name : url, null, true, true);
}
}
////////////////////////////////////////////////////////////////////////////////
//// Command Updating and Command Handlers
var gDownloadViewController = {
isCommandEnabled: function(aCommand, aItem)
{
let dl = aItem;
let download = null; // used for getting an nsIDownload object
switch (aCommand) {
case "cmd_cancel":
return dl.inProgress;
case "cmd_open": {
let file = getLocalFileFromNativePathOrUrl(dl.getAttribute("file"));
return dl.openable && file.exists();
}
case "cmd_show": {
let file = getLocalFileFromNativePathOrUrl(dl.getAttribute("file"));
return file.exists();
}
case "cmd_pause":
download = gDownloadManager.getDownload(dl.getAttribute("dlid"));
return dl.inProgress && !dl.paused && download.resumable;
case "cmd_pauseResume":
download = gDownloadManager.getDownload(dl.getAttribute("dlid"));
return (dl.inProgress || dl.paused) && download.resumable;
case "cmd_resume":
download = gDownloadManager.getDownload(dl.getAttribute("dlid"));
return dl.paused && download.resumable;
case "cmd_openReferrer":
return dl.hasAttribute("referrer");
case "cmd_removeFromList":
case "cmd_retry":
return dl.removable;
case "cmd_copyLocation":
return true;
}
return false;
},
doCommand: function(aCommand, aItem)
{
if (this.isCommandEnabled(aCommand, aItem))
this.commands[aCommand](aItem);
},
commands: {
cmd_cancel: function(aSelectedItem) {
cancelDownload(aSelectedItem);
},
cmd_open: function(aSelectedItem) {
openDownload(aSelectedItem);
},
cmd_openReferrer: function(aSelectedItem) {
openReferrer(aSelectedItem);
},
cmd_pause: function(aSelectedItem) {
pauseDownload(aSelectedItem);
},
cmd_pauseResume: function(aSelectedItem) {
if (aSelectedItem.paused)
this.cmd_resume(aSelectedItem);
else
this.cmd_pause(aSelectedItem);
},
cmd_removeFromList: function(aSelectedItem) {
removeDownload(aSelectedItem);
},
cmd_resume: function(aSelectedItem) {
resumeDownload(aSelectedItem);
},
cmd_retry: function(aSelectedItem) {
retryDownload(aSelectedItem);
},
cmd_show: function(aSelectedItem) {
showDownload(aSelectedItem);
},
cmd_copyLocation: function(aSelectedItem) {
copySourceLocation(aSelectedItem);
},
}
};
/**
* Helper function to do commands.
*
* @param aCmd
* The command to be performed.
* @param aItem
* The richlistitem that represents the download that will have the
* command performed on it. If this is null, the command is performed on
* all downloads. If the item passed in is not a richlistitem that
* represents a download, it will walk up the parent nodes until it finds
* a DOM node that is.
*/
function performCommand(aCmd, aItem)
{
let elm = aItem;
if (!elm) {
// If we don't have a desired download item, do the command for all
// selected items. Initialize the callback to null so commands know to add
// a callback if they want. We will call the callback with empty arguments
// after performing the command on each selected download item.
gPerformAllCallback = null;
// Convert the nodelist into an array to keep a copy of the download items
let items = [];
for (let i = gDownloadsView.selectedItems.length; --i >= 0; )
items.unshift(gDownloadsView.selectedItems[i]);
// Do the command for each download item
for each (let item in items)
performCommand(aCmd, item);
// Call the callback with no arguments and reset because we're done
if (typeof gPerformAllCallback == "function")
gPerformAllCallback();
gPerformAllCallback = undefined;
return;
} else {
while (elm.nodeName != "richlistitem" ||
elm.getAttribute("type") != "download")
elm = elm.parentNode;
}
gDownloadViewController.doCommand(aCmd, elm);
}
function setSearchboxFocus()
{
gSearchBox.focus();
gSearchBox.select();
}
function openExternal(aFile)
{
var uri = Cc["@mozilla.org/network/io-service;1"].
getService(Ci.nsIIOService).newFileURI(aFile);
var protocolSvc = Cc["@mozilla.org/uriloader/external-protocol-service;1"].
getService(Ci.nsIExternalProtocolService);
protocolSvc.loadUrl(uri);
return;
}
////////////////////////////////////////////////////////////////////////////////
//// Utility Functions
/**
* Create a download richlistitem with the provided attributes. Some attributes
* are *required* while optional ones will only be set on the item if provided.
*
* @param aAttrs
* An object that must have the following properties: dlid, file,
* target, uri, state, progress, startTime, endTime, currBytes,
* maxBytes; optional properties: referrer
* @return An initialized download richlistitem
*/
function createDownloadItem(aAttrs)
{
let dl = document.createElement("richlistitem");
// Copy the attributes from the argument into the item
for (let attr in aAttrs)
dl.setAttribute(attr, aAttrs[attr]);
// Initialize other attributes
dl.setAttribute("type", "download");
dl.setAttribute("id", "dl" + aAttrs.dlid);
dl.setAttribute("image", "moz-icon://" + aAttrs.file + "?size=32");
dl.setAttribute("lastSeconds", Infinity);
// Initialize more complex attributes
updateTime(dl);
updateStatus(dl);
try {
let file = getLocalFileFromNativePathOrUrl(aAttrs.file);
dl.setAttribute("path", file.nativePath || file.path);
return dl;
} catch (e) {
// aFile might not be a file: url or a valid native path
// see bug #392386 for details
}
return null;
}
/**
* Updates the disabled state of the buttons of a downlaod.
*
* @param aItem
* The richlistitem representing the download.
*/
function updateButtons(aItem)
{
let buttons = aItem.buttons;
for (let i = 0; i < buttons.length; ++i) {
let cmd = buttons[i].getAttribute("cmd");
let enabled = gDownloadViewController.isCommandEnabled(cmd, aItem);
buttons[i].disabled = !enabled;
if ("cmd_pause" == cmd && !enabled) {
// We need to add the tooltip indicating that the download cannot be
// paused now.
buttons[i].setAttribute("tooltiptext", gStr.cannotPause);
}
}
}
/**
* Updates the status for a download item depending on its state
*
* @param aItem
* The richlistitem that has various download attributes.
* @param aDownload
* The nsDownload from the backend. This is an optional parameter, but
* is useful for certain states such as DOWNLOADING.
*/
function updateStatus(aItem, aDownload) {
let status = "";
let statusTip = "";
let state = Number(aItem.getAttribute("state"));
switch (state) {
case nsIDM.DOWNLOAD_PAUSED:
{
let currBytes = Number(aItem.getAttribute("currBytes"));
let maxBytes = Number(aItem.getAttribute("maxBytes"));
let transfer = DownloadUtils.getTransferTotal(currBytes, maxBytes);
status = replaceInsert(gStr.paused, 1, transfer);
break;
}
case nsIDM.DOWNLOAD_DOWNLOADING:
{
let currBytes = Number(aItem.getAttribute("currBytes"));
let maxBytes = Number(aItem.getAttribute("maxBytes"));
// If we don't have an active download, assume 0 bytes/sec
let speed = aDownload ? aDownload.speed : 0;
let lastSec = Number(aItem.getAttribute("lastSeconds"));
let newLast;
[status, newLast] =
DownloadUtils.getDownloadStatus(currBytes, maxBytes, speed, lastSec);
// Update lastSeconds to be the new value
aItem.setAttribute("lastSeconds", newLast);
break;
}
case nsIDM.DOWNLOAD_FINISHED:
case nsIDM.DOWNLOAD_FAILED:
case nsIDM.DOWNLOAD_CANCELED:
case nsIDM.DOWNLOAD_BLOCKED_PARENTAL:
case nsIDM.DOWNLOAD_BLOCKED_POLICY:
case nsIDM.DOWNLOAD_DIRTY:
{
let (stateSize = {}) {
stateSize[nsIDM.DOWNLOAD_FINISHED] = function() {
// Display the file size, but show "Unknown" for negative sizes
let fileSize = Number(aItem.getAttribute("maxBytes"));
let sizeText = gStr.doneSizeUnknown;
if (fileSize >= 0) {
let [size, unit] = DownloadUtils.convertByteUnits(fileSize);
sizeText = replaceInsert(gStr.doneSize, 1, size);
sizeText = replaceInsert(sizeText, 2, unit);
}
return sizeText;
};
stateSize[nsIDM.DOWNLOAD_FAILED] = function() gStr.stateFailed;
stateSize[nsIDM.DOWNLOAD_CANCELED] = function() gStr.stateCanceled;
stateSize[nsIDM.DOWNLOAD_BLOCKED_PARENTAL] = function() gStr.stateBlockedParentalControls;
stateSize[nsIDM.DOWNLOAD_BLOCKED_POLICY] = function() gStr.stateBlockedPolicy;
stateSize[nsIDM.DOWNLOAD_DIRTY] = function() gStr.stateDirty;
// Insert 1 is the download size or download state
status = replaceInsert(gStr.doneStatus, 1, stateSize[state]());
}
let [displayHost, fullHost] =
DownloadUtils.getURIHost(getReferrerOrSource(aItem));
// Insert 2 is the eTLD + 1 or other variations of the host
status = replaceInsert(status, 2, displayHost);
// Set the tooltip to be the full host
statusTip = fullHost;
break;
}
}
aItem.setAttribute("status", status);
aItem.setAttribute("statusTip", statusTip != "" ? statusTip : status);
}
/**
* Updates the time that gets shown for completed download items
*
* @param aItem
* The richlistitem representing a download in the UI
*/
function updateTime(aItem)
{
// Don't bother updating for things that aren't finished
if (aItem.inProgress)
return;
let dts = Cc["@mozilla.org/intl/scriptabledateformat;1"].
getService(Ci.nsIScriptableDateFormat);
// Figure out when today begins
let now = new Date();
let today = new Date(now.getFullYear(), now.getMonth(), now.getDate());
// Get the end time to display
let end = new Date(parseInt(aItem.getAttribute("endTime")));
// Figure out if the end time is from today, yesterday, this week, etc.
let dateTime;
if (end >= today) {
// Download finished after today started, show the time
dateTime = dts.FormatTime("", dts.timeFormatNoSeconds,
end.getHours(), end.getMinutes(), 0);
} else if (today - end < (24 * 60 * 60 * 1000)) {
// Download finished after yesterday started, show yesterday
dateTime = gStr.yesterday;
} else if (today - end < (6 * 24 * 60 * 60 * 1000)) {
// Download finished after last week started, show day of week
dateTime = end.toLocaleFormat("%A");
} else {
// Download must have been from some time ago.. show month/day
let month = end.toLocaleFormat("%B");
// Remove leading 0 by converting the date string to a number
let date = Number(end.toLocaleFormat("%d"));
dateTime = replaceInsert(gStr.monthDate, 1, month);
dateTime = replaceInsert(dateTime, 2, date);
}
aItem.setAttribute("dateTime", dateTime);
// Set the tooltip to be the full date and time
let dateTimeTip = dts.FormatDateTime("",
dts.dateFormatLong,
dts.timeFormatNoSeconds,
end.getFullYear(),
end.getMonth() + 1,
end.getDate(),
end.getHours(),
end.getMinutes(),
0);
aItem.setAttribute("dateTimeTip", dateTimeTip);
}
/**
* Helper function to replace a placeholder string with a real string
*
* @param aText
* Source text containing placeholder (e.g., #1)
* @param aIndex
* Index number of placeholder to replace
* @param aValue
* New string to put in place of placeholder
* @return The string with placeholder replaced with the new string
*/
function replaceInsert(aText, aIndex, aValue)
{
return aText.replace("#" + aIndex, aValue);
}
/**
* Perform the default action for the currently selected download item
*/
function doDefaultForSelected()
{
// Make sure we have something selected
let item = gDownloadsView.selectedItem;
if (!item)
return;
// Get the default action (first item in the menu)
let state = Number(item.getAttribute("state"));
let menuitem = document.getElementById(gContextMenus[state][0]);
// Try to do the action if the command is enabled
gDownloadViewController.doCommand(menuitem.getAttribute("cmd"), item);
}
function removeFromView(aDownload)
{
// Make sure we have an item to remove
if (!aDownload) return;
let index = gDownloadsView.selectedIndex;
gDownloadsView.removeChild(aDownload);
gDownloadsView.selectedIndex = Math.min(index, gDownloadsView.itemCount - 1);
// We might have removed the last item, so update the clear list button
updateClearListButton();
}
function getReferrerOrSource(aDownload)
{
// Give the referrer if we have it set
if (aDownload.hasAttribute("referrer"))
return aDownload.getAttribute("referrer");
// Otherwise, provide the source
return aDownload.getAttribute("uri");
}
/**
* Initiate building the download list to have the active downloads followed by
* completed ones filtered by the search term if necessary.
*
* @param aForceBuild
* Force the list to be built even if the search terms don't change
*/
function buildDownloadList(aForceBuild)
{
// Stringify the previous search
let prevSearch = gSearchTerms.join(" ");
// Array of space-separated lower-case search terms
gSearchTerms = gSearchBox.value.replace(/^\s+|\s+$/g, "").
toLowerCase().split(/\s+/);
// Unless forced, don't rebuild the download list if the search didn't change
if (!aForceBuild && gSearchTerms.join(" ") == prevSearch)
return;
// Clear out values before using them
clearTimeout(gBuilder);
gStmt.reset();
// Clear the list before adding items by replacing with a shallow copy
let (empty = gDownloadsView.cloneNode(false)) {
gDownloadsView.parentNode.replaceChild(empty, gDownloadsView);
gDownloadsView = empty;
}
try {
gStmt.bindInt32Parameter(0, nsIDM.DOWNLOAD_NOTSTARTED);
gStmt.bindInt32Parameter(1, nsIDM.DOWNLOAD_DOWNLOADING);
gStmt.bindInt32Parameter(2, nsIDM.DOWNLOAD_PAUSED);
gStmt.bindInt32Parameter(3, nsIDM.DOWNLOAD_QUEUED);
gStmt.bindInt32Parameter(4, nsIDM.DOWNLOAD_SCANNING);
} catch (e) {
// Something must have gone wrong when binding, so clear and quit
gStmt.reset();
return;
}
// Take a quick break before we actually start building the list
gBuilder = setTimeout(function() {
// Start building the list and select the first item
stepListBuilder(1);
gDownloadsView.selectedIndex = 0;
// We just tried to add a single item, so we probably need to enable
updateClearListButton();
}, 0);
}
/**
* Incrementally build the download list by adding at most the requested number
* of items if there are items to add. After doing that, it will schedule
* another chunk of items specified by gListBuildDelay and gListBuildChunk.
*
* @param aNumItems
* Number of items to add to the list before taking a break
*/
function stepListBuilder(aNumItems) {
try {
// If we're done adding all items, we can quit
if (!gStmt.executeStep()) {
// Send a notification that we finished, but wait for clear list to update
updateClearListButton();
setTimeout(function() Cc["@mozilla.org/observer-service;1"].
getService(Ci.nsIObserverService).
notifyObservers(window, "download-manager-ui-done", null), 0);
return;
}
// Try to get the attribute values from the statement
let attrs = {
dlid: gStmt.getInt64(0),
file: gStmt.getString(1),
target: gStmt.getString(2),
uri: gStmt.getString(3),
state: gStmt.getInt32(4),
startTime: Math.round(gStmt.getInt64(5) / 1000),
endTime: Math.round(gStmt.getInt64(6) / 1000),
currBytes: gStmt.getInt64(8),
maxBytes: gStmt.getInt64(9)
};
// Only add the referrer if it's not null
let (referrer = gStmt.getString(7)) {
if (referrer)
attrs.referrer = referrer;
}
// If the download is active, grab the real progress, otherwise default 100
let isActive = gStmt.getInt32(10);
attrs.progress = isActive ? gDownloadManager.getDownload(attrs.dlid).
percentComplete : 100;
// Make the item and add it to the end if it's active or matches the search
let item = createDownloadItem(attrs);
if (item && (isActive || downloadMatchesSearch(item))) {
// Add item to the end
gDownloadsView.appendChild(item);
// Because of the joys of XBL, we can't update the buttons until the
// download object is in the document.
updateButtons(item);
} else {
// We didn't add an item, so bump up the number of items to process, but
// not a whole number so that we eventually do pause for a chunk break
aNumItems += .9;
}
} catch (e) {
// Something went wrong when stepping or getting values, so clear and quit
gStmt.reset();
return;
}
// Add another item to the list if we should; otherwise, let the UI update
// and continue later
if (aNumItems > 1) {
stepListBuilder(aNumItems - 1);
} else {
// Use a shorter delay for earlier downloads to display them faster
let delay = Math.min(gDownloadsView.itemCount * 10, gListBuildDelay);
gBuilder = setTimeout(stepListBuilder, delay, gListBuildChunk);
}
}
/**
* Add a download to the front of the download list
*
* @param aDownload
* The nsIDownload to make into a richlistitem
*/
function prependList(aDownload)
{
let attrs = {
dlid: aDownload.id,
file: aDownload.target.spec,
target: aDownload.displayName,
uri: aDownload.source.spec,
state: aDownload.state,
progress: aDownload.percentComplete,
startTime: Math.round(aDownload.startTime / 1000),
endTime: Date.now(),
currBytes: aDownload.amountTransferred,
maxBytes: aDownload.size
};
// Make the item and add it to the beginning
let item = createDownloadItem(attrs);
if (item) {
// Add item to the beginning
gDownloadsView.insertBefore(item, gDownloadsView.firstChild);
// Because of the joys of XBL, we can't update the buttons until the
// download object is in the document.
updateButtons(item);
// We might have added an item to an empty list, so update button
updateClearListButton();
}
}
/**
* Check if the download matches the current search term based on the texts
* shown to the user. All search terms are checked to see if each matches any
* of the displayed texts.
*
* @param aItem
* Download richlistitem to check if it matches the current search
* @return Boolean true if it matches the search; false otherwise
*/
function downloadMatchesSearch(aItem)
{
// Search through the download attributes that are shown to the user and
// make it into one big string for easy combined searching
let combinedSearch = "";
for each (let attr in gSearchAttributes)
combinedSearch += aItem.getAttribute(attr).toLowerCase() + " ";
// Make sure each of the terms are found
for each (let term in gSearchTerms)
if (combinedSearch.search(term) == -1)
return false;
return true;
}
// we should be using real URLs all the time, but until
// bug 239948 is fully fixed, this will do...
//
// note, this will thrown an exception if the native path
// is not valid (for example a native Windows path on a Mac)
// see bug #392386 for details
function getLocalFileFromNativePathOrUrl(aPathOrUrl)
{
if (aPathOrUrl.substring(0,7) == "file://") {
// if this is a URL, get the file from that
let ioSvc = Cc["@mozilla.org/network/io-service;1"].
getService(Ci.nsIIOService);
// XXX it's possible that using a null char-set here is bad
const fileUrl = ioSvc.newURI(aPathOrUrl, null, null).
QueryInterface(Ci.nsIFileURL);
return fileUrl.file.clone().QueryInterface(Ci.nsILocalFile);
} else {
// if it's a pathname, create the nsILocalFile directly
var f = new nsLocalFile(aPathOrUrl);
return f;
}
}
/**
* Update the disabled state of the clear list button based on whether or not
* there are items in the list that can potentially be removed.
*/
function updateClearListButton()
{
let button = document.getElementById("clearListButton");
// The button is enabled if we have items in the list and we can clean up
button.disabled = !(gDownloadsView.itemCount && gDownloadManager.canCleanUp);
}
function getDownload(aID)
{
return document.getElementById("dl" + aID);
}
/**
* Initialize the statement which is used to retrieve the list of downloads.
*
* This function gets called both at startup, and when entering the private
* browsing mode (because the database connection is changed when entering
* the private browsing mode, and a new statement should be initialized.
*/
function initStatement()
{
if (gStmt)
gStmt.finalize();
gStmt = gDownloadManager.DBConnection.createStatement(
"SELECT id, target, name, source, state, startTime, endTime, referrer, " +
"currBytes, maxBytes, state IN (?1, ?2, ?3, ?4, ?5) isActive " +
"FROM moz_downloads " +
"ORDER BY isActive DESC, endTime DESC, startTime DESC");
}
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