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nsProgressDlg.js
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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (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/NPL/
*
* 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 Communicator client code,
* released March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape Communications
* Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*
* Contributors:
* William A. ("PowerGUI") Law <law@netscape.com>
* Scott MacGregor <mscott@netscape.com>
*/
var prefContractID = "@mozilla.org/preferences-service;1";
var externalProtocolServiceID = "@mozilla.org/uriloader/external-protocol-service;1";
// dialog is just an array we'll use to store various properties from the dialog document...
var dialog;
// the helperAppLoader is a nsIHelperAppLauncher object
var helperAppLoader;
var webBrowserPersist;
var persistArgs;
const nsIWBP = Components.interfaces.nsIWebBrowserPersist;
// random global variables...
var completed = false;
var startTime = 0;
var elapsed = 0;
var interval = 500; // Update every 500 milliseconds.
var lastUpdate = -interval; // Update initially.
var keepProgressWindowUpBox;
var targetFile;
var gRestartChecked = false;
// These are to throttle down the updating of the download rate figure.
var priorRate = 0;
var rateChanges = 0;
var rateChangeLimit = 2;
// all progress notifications are done through our nsIWebProgressListener implementation...
var progressListener = {
onStateChange: function(aWebProgress, aRequest, aStateFlags, aStatus)
{
if (aStateFlags & Components.interfaces.nsIWebProgressListener.STATE_STOP)
{
// we are done downloading...
completed = true;
// Indicate completion in status area.
var msg = getString( "completeMsg" );
msg = replaceInsert( msg, 1, formatSeconds( elapsed/1000 ) );
dialog.status.setAttribute("value", msg);
// Put progress meter at 100%.
dialog.progress.setAttribute( "value", 100 );
dialog.progress.setAttribute( "mode", "normal" );
var percentMsg = getString( "percentMsg" );
percentMsg = replaceInsert( percentMsg, 1, 100 );
dialog.progressText.setAttribute("label", percentMsg);
const nsIWebBrowserPersist = Components.interfaces.nsIWebBrowserPersist;
if (helperAppLoader || webBrowserPersist &&
webBrowserPersist.currentState == nsIWebBrowserPersist.PERSIST_STATE_FINISHED)
setTimeout("processEndOfDownload()", 0);
}
},
onProgressChange: function(aWebProgress, aRequest, aCurSelfProgress, aMaxSelfProgress, aCurTotalProgress, aMaxTotalProgress)
{
if (!gRestartChecked)
{
gRestartChecked = true;
try
{
// right now, all that supports restarting downloads is ftp (rfc959)
ftpChannel = aRequest.QueryInterface(Components.interfaces.nsIFTPChannel);
if (ftpChannel) {
dialog.pauseResumeDeck.setAttribute("selectedIndex", "1");
}
}
catch (ex) {}
}
// this is so that we don't clobber the status text if
// a onProgressChange event happens after we press the pause btn.
if (dialog.downloadPaused)
{
dialog.status.setAttribute("value", getString("pausedMsg"));
}
dialog.request = aRequest;
var overallProgress = aCurTotalProgress;
// Get current time.
var now = ( new Date() ).getTime();
// If interval hasn't elapsed, ignore it.
if ( now - lastUpdate < interval && aMaxTotalProgress != "-1" && parseInt(aCurTotalProgress) < parseInt(aMaxTotalProgress) )
return;
// Update this time.
lastUpdate = now;
// Update download rate.
elapsed = now - startTime;
var rate; // aCurTotalProgress/sec
if ( elapsed )
rate = ( aCurTotalProgress * 1000 ) / elapsed;
else
rate = 0;
// Update elapsed time display.
dialog.timeElapsed.setAttribute("value", formatSeconds( elapsed / 1000 ));
// Calculate percentage.
var percent;
if ( aMaxTotalProgress > 0)
{
percent = Math.floor((overallProgress*100.0)/aMaxTotalProgress);
if ( percent > 100 )
percent = 100;
// Advance progress meter.
dialog.progress.setAttribute( "value", percent );
}
else
{
percent = -1;
// Progress meter should be barber-pole in this case.
dialog.progress.setAttribute( "mode", "undetermined" );
}
// now that we've set the progress and the time, update # bytes downloaded...
// Update status (nnK of mmK bytes at xx.xK aCurTotalProgress/sec)
var status = getString( "progressMsg" );
// Insert 1 is the number of kilobytes downloaded so far.
status = replaceInsert( status, 1, parseInt( overallProgress/1024 + .5 ) );
// Insert 2 is the total number of kilobytes to be downloaded (if known).
if ( aMaxTotalProgress != "-1" )
status = replaceInsert( status, 2, parseInt( aMaxTotalProgress/1024 + .5 ) );
else
status = replaceInsert( status, 2, "??" );
if ( rate )
{
// rate is bytes/sec
var kRate = rate / 1024; // K bytes/sec;
kRate = parseInt( kRate * 10 + .5 ); // xxx (3 digits)
// Don't update too often!
if ( kRate != priorRate )
{
if ( rateChanges++ == rateChangeLimit )
{
// Time to update download rate.
priorRate = kRate;
rateChanges = 0;
}
else
{
// Stick with old rate for a bit longer.
kRate = priorRate;
}
}
else
rateChanges = 0;
var fraction = kRate % 10;
kRate = parseInt( ( kRate - fraction ) / 10 );
// Insert 3 is the download rate (in kilobytes/sec).
status = replaceInsert( status, 3, kRate + "." + fraction );
}
else
status = replaceInsert( status, 3, "??.?" );
// Update status msg.
dialog.status.setAttribute("value", status);
// Update percentage label on progress meter.
if (percent < 0)
dialog.progressText.setAttribute("value", "");
else
{
var percentMsg = getString( "percentMsg" );
percentMsg = replaceInsert( percentMsg, 1, percent );
dialog.progressText.setAttribute("value", percentMsg);
}
// Update time remaining.
if ( rate && (aMaxTotalProgress > 0) )
{
var rem = ( aMaxTotalProgress - aCurTotalProgress ) / rate;
rem = parseInt( rem + .5 );
dialog.timeLeft.setAttribute("value", formatSeconds( rem ));
}
else
dialog.timeLeft.setAttribute("value", getString( "unknownTime" ));
},
onLocationChange: function(aWebProgress, aRequest, aLocation)
{
// we can ignore this notification
},
onStatusChange: function(aWebProgress, aRequest, aStatus, aMessage)
{
},
onSecurityChange: function(aWebProgress, aRequest, state)
{
},
QueryInterface : function(iid)
{
if (iid.equals(Components.interfaces.nsIWebProgressListener) ||
iid.equals(Components.interfaces.nsISupportsWeakReference) ||
iid.equals(Components.interfaces.nsISupports))
return this;
throw Components.results.NS_NOINTERFACE;
}
};
function getString( stringId ) {
// Check if we've fetched this string already.
if ( !dialog.strings[ stringId ] ) {
// Try to get it.
var elem = document.getElementById( "dialog.strings."+stringId );
try {
if ( elem
&&
elem.childNodes
&&
elem.childNodes[0]
&&
elem.childNodes[0].nodeValue ) {
dialog.strings[ stringId ] = elem.childNodes[0].nodeValue;
} else {
// If unable to fetch string, use an empty string.
dialog.strings[ stringId ] = "";
}
} catch (e) { dialog.strings[ stringId ] = ""; }
}
return dialog.strings[ stringId ];
}
function formatSeconds( secs )
{
// Round the number of seconds to remove fractions.
secs = parseInt( secs + .5 );
var hours = parseInt( secs/3600 );
secs -= hours*3600;
var mins = parseInt( secs/60 );
secs -= mins*60;
var result;
if ( hours )
result = getString( "longTimeFormat" );
else
result = getString( "shortTimeFormat" );
if ( hours < 10 )
hours = "0" + hours;
if ( mins < 10 )
mins = "0" + mins;
if ( secs < 10 )
secs = "0" + secs;
// Insert hours, minutes, and seconds into result string.
result = replaceInsert( result, 1, hours );
result = replaceInsert( result, 2, mins );
result = replaceInsert( result, 3, secs );
return result;
}
function loadDialog()
{
var sourceUrlValue = {};
var initialDownloadTimeValue = {};
var sourceUrl = null;
// targetFile is global because we are going to want re-use later one...
if (helperAppLoader) {
targetFile = helperAppLoader.getDownloadInfo(sourceUrlValue, initialDownloadTimeValue);
sourceUrl = sourceUrlValue.value;
startTime = initialDownloadTimeValue.value / 1000;
}
else if (webBrowserPersist) {
// When saving web pages, the file we're saving into is passed to us as a parameter.
try {
persistArgs.source.QueryInterface(Components.interfaces.nsIURI);
sourceUrl = persistArgs.source;
}
catch (e) {
sourceUrl = { spec: persistArgs.source.URL };
}
// When saving web pages, we don't need to do anything special to receive the time
// at which the transfer started, so just assume it started 'now'.
startTime = ( new Date() ).getTime();
}
// set the elapsed time on the first pass...
var now = ( new Date() ).getTime();
// intialize the elapsed time global variable slot
elapsed = now - startTime;
// Update elapsed time display.
dialog.timeElapsed.setAttribute("value", formatSeconds( elapsed / 1000 ));
dialog.timeLeft.setAttribute("value", formatSeconds( 0 ));
dialog.location.setAttribute("value", sourceUrl.spec );
dialog.fileName.setAttribute( "value", targetFile.path );
var prefs = Components.classes[prefContractID].getService(Components.interfaces.nsIPrefBranch);
if (prefs)
keepProgressWindowUpBox.checked = prefs.getBoolPref("browser.download.progressDnldDialog.keepAlive");
}
function replaceInsert( text, index, value ) {
var result = text;
var regExp = new RegExp( "#"+index );
result = result.replace( regExp, value );
return result;
}
function onLoad() {
// Set global variables.
try {
helperAppLoader = window.arguments[0].QueryInterface( Components.interfaces.nsIHelperAppLauncher );
}
catch (e) {
webBrowserPersist = window.arguments[0].QueryInterface( Components.interfaces.nsIWebBrowserPersist );
setTimeout("checkPersistComplete()", 100);
}
if ( !helperAppLoader && !webBrowserPersist ) {
dump( "Invalid argument to helperAppDldProgress.xul\n" );
window.close()
return;
}
dialog = new Object;
dialog.strings = new Array;
dialog.location = document.getElementById("dialog.location");
dialog.contentType = document.getElementById("dialog.contentType");
dialog.fileName = document.getElementById("dialog.fileName");
dialog.status = document.getElementById("dialog.status");
dialog.progress = document.getElementById("dialog.progress");
dialog.progressText = document.getElementById("dialog.progressText");
dialog.timeLeft = document.getElementById("dialog.timeLeft");
dialog.timeElapsed = document.getElementById("dialog.timeElapsed");
dialog.cancel = document.getElementById("cancel");
dialog.pause = document.getElementById("pause");
dialog.resume = document.getElementById("resume");
dialog.pauseResumeDeck = document.getElementById("pauseResumeDeck");
dialog.request = 0;
dialog.downloadPaused = false;
keepProgressWindowUpBox = document.getElementById('keepProgressDialogUp');
// Set up dialog button callbacks.
var object = this;
doSetOKCancel("", function () { return object.onCancel();});
// set our web progress listener on the helper app launcher
if (helperAppLoader)
helperAppLoader.setWebProgressListener(progressListener);
else if (webBrowserPersist) {
webBrowserPersist.progressListener = progressListener;
persistArgs = window.arguments[1];
targetFile = persistArgs.target;
// If the code reaches this point, the user has agreed to replace existing files in the
// file picker.
const flags = nsIWBP.PERSIST_FLAGS_NO_CONVERSION | nsIWBP.PERSIST_FLAGS_REPLACE_EXISTING_FILES;
if (persistArgs.bypassCache)
webBrowserPersist.persistFlags |= nsIWBP.PERSIST_FLAGS_BYPASS_CACHE;
else
webBrowserPersist.persistFlags |= nsIWBP.PERSIST_FLAGS_FROM_CACHE;
try {
var uri = persistArgs.source.QueryInterface(Components.interfaces.nsIURI);
webBrowserPersist.saveURI(uri, persistArgs.postData, targetFile);
}
catch (e) {
// Saving a Document, not a URI:
var filesFolder = null;
if (persistArgs.contentType != "text/plain") {
// Create the local directory into which to save associated files.
const lfContractID = "@mozilla.org/file/local;1";
const lfIID = Components.interfaces.nsILocalFile;
filesFolder = Components .classes[lfContractID].createInstance(lfIID);
filesFolder.initWithPath(persistArgs.target.path);
var nameWithoutExtension = filesFolder.leafName;
nameWithoutExtension = nameWithoutExtension.substring(0, nameWithoutExtension.lastIndexOf("."));
var filesFolderLeafName = getString("filesFolder");
filesFolderLeafName = filesFolderLeafName.replace(/\^BASE\^/, nameWithoutExtension);
filesFolder.leafName = filesFolderLeafName;
if (!filesFolder.exists())
filesFolder.create(lfIID.DIRECTORY_TYPE, 0755);
}
var encodingFlags = 0;
if (persistArgs.contentType == "text/plain") {
encodingFlags |= nsIWBP.ENCODE_FLAGS_FORMATTED;
encodingFlags |= nsIWBP.ENCODE_FLAGS_ABSOLUTE_LINKS;
encodingFlags |= nsIWBP.ENCODE_FLAGS_NOFRAMES_CONTENT;
}
const kWrapColumn = 80;
webBrowserPersist.saveDocument(persistArgs.source, targetFile, filesFolder,
persistArgs.contentType, encodingFlags, kWrapColumn);
}
}
// Fill dialog.
loadDialog();
if ( window.opener ) {
moveToAlertPosition();
} else {
centerWindowOnScreen();
}
// Set initial focus
if ( !completed )
{
keepProgressWindowUpBox.focus();
}
}
function onUnload()
{
// remember the user's decision for the checkbox.
var prefs = Components.classes[prefContractID].getService(Components.interfaces.nsIPrefBranch);
if (prefs)
prefs.setBoolPref("browser.download.progressDnldDialog.keepAlive", keepProgressWindowUpBox.checked);
// Cancel app launcher.
if (helperAppLoader)
{
try
{
helperAppLoader.closeProgressWindow();
helperAppLoader = null;
}
catch( exception ) {}
}
}
// If the user presses cancel, tell the app launcher and close the dialog...
function onCancel ()
{
// Cancel app launcher.
if (helperAppLoader && !completed)
{
try
{
helperAppLoader.Cancel();
}
catch( exception ) {}
}
else if (webBrowserPersist)
{
webBrowserPersist.cancelSave();
}
// Close up dialog by returning true.
return true;
}
// closeWindow should only be called from processEndOfDownload
function closeWindow()
{
// while the time out was fired the user may have checked the
// keep this dialog open box...so we should abort and not actually
// close the window.
if (!keepProgressWindowUpBox.checked)
window.close();
else
setupPostProgressUI();
}
function setupPostProgressUI()
{
//dialog.cancel.childNodes[0].nodeValue = "Close";
// turn the cancel button into a close button
var cancelButton = document.getElementById('cancel');
if (cancelButton)
{
cancelButton.label = getString("close");
cancelButton.focus();
}
// enable the open and open folder buttons
var openFolderButton = document.getElementById('openFolder');
var openButton = document.getElementById('open');
openFolderButton.removeAttribute("disabled");
if ( !targetFile.isExecutable() )
{
openButton.removeAttribute("disabled");
}
dialog.pause.disabled = true; // setAttribute("disabled", true);
dialog.resume.disabled = true;
}
// when we receive a stop notification we are done reporting progress on the download
// now we have to decide if the window is supposed to go away or if we are supposed to remain open
// and enable the open and open folder buttons on the dialog.
function processEndOfDownload()
{
if (!keepProgressWindowUpBox.checked) {
closeWindow(); // shut down, we are all done.
return;
}
// o.t the user has asked the window to stay open so leave it open and enable the open and open new folder buttons
setupPostProgressUI();
}
function doOpen()
{
try {
var localFile = targetFile.QueryInterface(Components.interfaces.nsILocalFile);
if (localFile)
localFile.launch();
window.close();
} catch (ex) {}
}
function doOpenFolder()
{
try {
var localFile = targetFile.QueryInterface(Components.interfaces.nsILocalFile);
if (localFile)
localFile.reveal();
window.close();
} catch (ex) {}
}
function doPauseButton() {
if (dialog.downloadPaused)
{
// resume
dialog.downloadPaused = false;
dialog.pauseResumeDeck.setAttribute("selectedIndex", "1");
dialog.request.resume()
}
else
{
// suspend
dialog.downloadPaused = true;
dialog.pauseResumeDeck.setAttribute("selectedIndex", "2");
dialog.request.suspend()
}
}
function checkPersistComplete()
{
const nsIWebBrowserPersist = Components.interfaces.nsIWebBrowserPersist;
if (webBrowserPersist.currentState == nsIWebBrowserPersist.PERSIST_STATE_FINISHED) {
dump("*** all done\n");
processEndOfDownload();
}
}