pjs/toolkit/components/printing/content/printProgress.js

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JavaScript

# -*- Mode: C; tab-width: 4; 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 printing front-end.
#
# The Initial Developer of the Original Code is
# Netscape Communications Corporation.
# Portions created by the Initial Developer are Copyright (C) 2002
# the Initial Developer. All Rights Reserved.
#
# Contributors:
# William A. ("PowerGUI") Law <law@netscape.com>
# Scott MacGregor <mscott@netscape.com>
# jean-Francois Ducarroz <ducarroz@netscape.com>
# Rod Spears <rods@netscape.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 NPL, 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 NPL, the GPL or the LGPL.
#
# ***** END LICENSE BLOCK *****
// dialog is just an array we'll use to store various properties from the dialog document...
var dialog;
// the printProgress is a nsIPrintProgress object
var printProgress = null;
// random global variables...
var targetFile;
var docTitle = "";
var docURL = "";
var progressParams = null;
var switchUI = true;
function elipseString(aStr, doFront)
{
if (aStr.length > 3 && (aStr.substr(0, 3) == "..." || aStr.substr(aStr.length-4, 3) == "...")) {
return aStr;
}
var fixedLen = 64;
if (aStr.length > fixedLen) {
if (doFront) {
var endStr = aStr.substr(aStr.length-fixedLen, fixedLen);
var str = "..." + endStr;
return str;
} else {
var frontStr = aStr.substr(0, fixedLen);
var str = frontStr + "...";
return str;
}
}
return aStr;
}
// all progress notifications are done through the nsIWebProgressListener implementation...
var progressListener = {
onStateChange: function(aWebProgress, aRequest, aStateFlags, aStatus)
{
if (aStateFlags & Components.interfaces.nsIWebProgressListener.STATE_START)
{
// Put progress meter in undetermined mode.
// dialog.progress.setAttribute( "value", 0 );
dialog.progress.setAttribute( "mode", "undetermined" );
}
if (aStateFlags & Components.interfaces.nsIWebProgressListener.STATE_STOP)
{
// we are done printing
// Indicate completion in title area.
var msg = getString( "printComplete" );
dialog.title.setAttribute("value", msg);
// Put progress meter at 100%.
dialog.progress.setAttribute( "value", 100 );
dialog.progress.setAttribute( "mode", "normal" );
var percentPrint = getString( "progressText" );
percentPrint = replaceInsert( percentPrint, 1, 100 );
dialog.progressText.setAttribute("value", percentPrint);
window.close();
}
},
onProgressChange: function(aWebProgress, aRequest, aCurSelfProgress, aMaxSelfProgress, aCurTotalProgress, aMaxTotalProgress)
{
if (switchUI)
{
dialog.tempLabel.setAttribute("hidden", "true");
dialog.progress.setAttribute("hidden", "false");
dialog.cancel.setAttribute("disabled", "false");
var progressLabel = getString("progress");
if (progressLabel == "") {
progressLabel = "Progress:"; // better than nothing
}
switchUI = false;
}
if (progressParams)
{
var docTitleStr = elipseString(progressParams.docTitle, false);
if (docTitleStr != docTitle) {
docTitle = docTitleStr;
dialog.title.value = docTitle;
}
var docURLStr = progressParams.docURL;
if (docURLStr != docURL && dialog.title != null) {
docURL = docURLStr;
if (docTitle == "") {
dialog.title.value = elipseString(docURLStr, true);
}
}
}
// Calculate percentage.
var percent;
if ( aMaxTotalProgress > 0 )
{
percent = Math.round( (aCurTotalProgress*100)/aMaxTotalProgress );
if ( percent > 100 )
percent = 100;
dialog.progress.removeAttribute( "mode");
// Advance progress meter.
dialog.progress.setAttribute( "value", percent );
// Update percentage label on progress meter.
var percentPrint = getString( "progressText" );
percentPrint = replaceInsert( percentPrint, 1, percent );
dialog.progressText.setAttribute("value", percentPrint);
}
else
{
// Progress meter should be barber-pole in this case.
dialog.progress.setAttribute( "mode", "undetermined" );
// Update percentage label on progress meter.
dialog.progressText.setAttribute("value", "");
}
},
onLocationChange: function(aWebProgress, aRequest, aLocation)
{
// we can ignore this notification
},
onStatusChange: function(aWebProgress, aRequest, aStatus, aMessage)
{
if (aMessage != "")
dialog.title.setAttribute("value", aMessage);
},
onSecurityChange: function(aWebProgress, aRequest, state)
{
// we can ignore this notification
},
QueryInterface : function(iid)
{
if (iid.equals(Components.interfaces.nsIWebProgressListener) || iid.equals(Components.interfaces.nsISupportsWeakReference))
return this;
throw Components.results.NS_NOINTERFACE;
}
};
function getString( stringId ) {
// Check if we've fetched this string already.
if (!(stringId in dialog.strings)) {
// 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 loadDialog()
{
}
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.
printProgress = window.arguments[0];
if (window.arguments[1])
{
progressParams = window.arguments[1].QueryInterface(Components.interfaces.nsIPrintProgressParams)
if (progressParams)
{
docTitle = elipseString(progressParams.docTitle, false);
docURL = elipseString(progressParams.docURL, true);
}
}
if ( !printProgress ) {
dump( "Invalid argument to printProgress.xul\n" );
window.close()
return;
}
dialog = new Object;
dialog.strings = new Array;
dialog.title = document.getElementById("dialog.title");
dialog.titleLabel = document.getElementById("dialog.titleLabel");
dialog.progress = document.getElementById("dialog.progress");
dialog.progressText = document.getElementById("dialog.progressText");
dialog.progressLabel = document.getElementById("dialog.progressLabel");
dialog.tempLabel = document.getElementById("dialog.tempLabel");
dialog.cancel = document.getElementById("cancel");
dialog.progress.setAttribute("hidden", "true");
dialog.cancel.setAttribute("disabled", "true");
var progressLabel = getString("preparing");
if (progressLabel == "") {
progressLabel = "Preparing..."; // better than nothing
}
dialog.tempLabel.value = progressLabel;
dialog.title.value = docTitle;
// Set up dialog button callbacks.
var object = this;
doSetOKCancel("", function () { return object.onCancel();});
// Fill dialog.
loadDialog();
// set our web progress listener on the helper app launcher
printProgress.registerListener(progressListener);
moveToAlertPosition();
//We need to delay the set title else dom will overwrite it
window.setTimeout(doneIniting, 500);
}
function onUnload()
{
if (printProgress)
{
try
{
printProgress.unregisterListener(progressListener);
printProgress = null;
}
catch( exception ) {}
}
}
// If the user presses cancel, tell the app launcher and close the dialog...
function onCancel ()
{
// Cancel app launcher.
try
{
printProgress.processCanceledByUser = true;
}
catch( exception ) {return true;}
// don't Close up dialog by returning false, the backend will close the dialog when everything will be aborted.
return false;
}
function doneIniting()
{
printProgress.doneIniting();
}