I try to unregister stylesheet:
try {
var StyleService = Cc["#mozilla.org/content/style-sheet-service;1"].getService(Ci.nsIStyleSheetService);
StyleService.unregisterSheet(url, StyleService.USER_SHEET);
} catch (e){
console.log(e);
}
var isRegistered = StyleService.sheetRegistered(url, StyleService.USER_SHEET);
if (isRegistered) {
console.log("styleSheet unregister check is failed url:" + url.path);
}
One stylesheet i generate Services.io.newURI("data:text/css,"+ encodeURIComponent(content), null, null);
And it unregisters fine. But another file located on ProfD directory fails on isRegistered check.
var styleFile = FileUtils.getFile(FS.ProfileName, [FS.DirName, this.CSS_FILE_PATH]);
this.injectCssUrl = IoService.newFileURI(styleFile).QueryInterface(Ci.nsIFileURL);
Why it unregister?
var sss = Components.classes['#mozilla.org/content/style-sheet-service;1'].getService(Components.interfaces.nsIStyleSheetService);
var ios = Components.classes['#mozilla.org/network/io-service;1'].getService(Components.interfaces.nsIIOService);
try {
sss.unregisterSheet(cssUri, sss.USER_SHEET);
} catch (ex) {}
var css = 'setting .preferences-alignment{ display:flex; flex-direction:row-reverse; align-items:center; }';
//var cssEnc = 'data:text/css;base64,' + window.btoa(css);
var cssEnc = encodeURIComponent(css);
var cssUri = makeURI('data:text/css,' + cssEnc);
sss.loadAndRegisterSheet(cssUri, sss.USER_SHEET);
if you want to use a file then something like
var appliedURI;
function startup(aData, aReason) {
var path = aData.resourceURI.spec + 'no_icon.css'; //or in your case styleFile.path
appliedURI = Services.io.newURI(path, null, null);
sss.loadAndRegisterSheet(appliedURI, sss.USER_SHEET);
}
function shutdown(aData, aReason) {
if (aReason == APP_SHUTDOWN) return;
sss.unregisterSheet(appliedURI, sss.USER_SHEET);
}
My problem was that i register the same style several times. After i unregister style each time before register again all works normaly
Related
I use Xamarin-CrossDownloadManager (https://github.com/SimonSimCity/Xamarin-CrossDownloadManager) and I need waiting for download a file. I have this code:
private static async Task<bool> FileDownloadedTest(string LinkToFile, string PathFile)
{
var downloadManager = CrossDownloadManager.Current;
CrossDownloadManager.Current.PathNameForDownloadedFile = new System.Func<IDownloadFile, string>(file => {
return PathFile;
});
{
await DeleteFile(PathFile);
var file = downloadManager.CreateDownloadFile(LinkToFile);
await Task.Run(() => downloadManager.Start(file, true)); //why this not wait???
}
bool FileExist = await IsFileExist(PathFile);
return FileExist;
}
Why it not wait for finish download action? How to do it?
On library site they wrote, that I can watch the IDownloadManager.Queue to get information when the file is downloaded. But, I don't know how to use this in my method... Can you help me?
PS: Sorry for my english, I'm still learning it ;)
With that library, there is no callback or event published for when a file is finished downloading, but you can do a simple check and wait some more loop.
await Task.Run(async () =>
{
var downloadManager = CrossDownloadManager.Current;
var file = downloadManager.CreateDownloadFile(someFileBasedUrl);
downloadManager.Start(file);
bool isDownloading = true;
while (isDownloading)
{
await Task.Delay(10 * 1000);
isDownloading = IsDownloading(file);
}
});
The IsDownloading method:
bool IsDownloading(IDownloadFile file)
{
if (file == null) return false;
switch (file.Status)
{
case DownloadFileStatus.INITIALIZED:
case DownloadFileStatus.PAUSED:
case DownloadFileStatus.PENDING:
case DownloadFileStatus.RUNNING:
return true;
case DownloadFileStatus.COMPLETED:
case DownloadFileStatus.CANCELED:
case DownloadFileStatus.FAILED:
return false;
default:
throw new ArgumentOutOfRangeException();
}
}
Re: https://github.com/SimonSimCity/Xamarin-CrossDownloadManager/blob/develop/Sample/DownloadExample/Downloader.cs#L46
I don't know why IDownloadFile.Status = COMPLETED not working, but i found solve problem:
await Task.Run(() =>
{
var downloadManager = CrossDownloadManager.Current;
var file = downloadManager.CreateDownloadFile(LinkToFile);
downloadManager.Start(file);
while (file.Status == DownloadFileStatus.INITIALIZED)
{
while (file.TotalBytesExpected > file.TotalBytesWritten)
{
Debug.WriteLine(file.Status);
}
}
});
Somebody know why DownloadFileStatus.INITIALIZED working, but DownloadFileStatus.COMPLETED not?
SushiHangover's answer above worked great, and I combined it with ACR User Dialog's package (https://github.com/aritchie/userdialogs) to show a nice loading progress screen to the user while waiting for the download to complete. This works nicely on Android (I couldn't test iOS yet).
...
var downloadManager = CrossDownloadManager.Current;
var fileToDownload = downloadManager.CreateDownloadFile(args.Url);
downloadManager.Start(fileToDownload, true);
args.Cancel = true;
UserDialogs.Instance.Progress("Downloading").Show();
bool isDownloading = true;
while (isDownloading)
{
await Task.Delay(100);
if (fileToDownload.TotalBytesExpected > 0)
{
UserDialogs.Instance.Progress().PercentComplete = (int)(fileToDownload.TotalBytesWritten / fileToDownload.TotalBytesExpected * 100);
Console.WriteLine(("DOWNLOAD PROGRESS: " + fileToDownload.TotalBytesWritten / fileToDownload.TotalBytesExpected * 100).ToString() + "%");
}
isDownloading = IsDownloading(fileToDownload);
}
UserDialogs.Instance.Progress().Hide();
//Below code opens the download location after download has completed.
Intent intent = new Intent(DownloadManager.ActionViewDownloads);
intent.AddFlags(ActivityFlags.NewTask);
Android.App.Application.Context.StartActivity(intent);
return;
}
}
}
bool IsDownloading(IDownloadFile file)
{
if (file == null) return false;
switch (file.Status)
{
case DownloadFileStatus.INITIALIZED:
case DownloadFileStatus.PAUSED:
case DownloadFileStatus.PENDING:
case DownloadFileStatus.RUNNING:
return true;
case DownloadFileStatus.COMPLETED:
case DownloadFileStatus.CANCELED:
case DownloadFileStatus.FAILED:
return false;
default:
throw new ArgumentOutOfRangeException();
}
}
I am trying to build an analysis program for static analysis on the java script file provided to the program using esprima and estraverse. I want to make out and differentiate between the local functions defined by user and calls to the native library for Objects like 'Object.prototype() , Object.getOwnProperties()'.
var fs = require('fs');
var esprima = require('esprima');
var estraverse = require('estraverse');
var functionsStats = {}; //1
var addStatsEntry = function(funcName) { //2
if (!functionsStats[funcName]) {
functionsStats[funcName] = {calls: 0, declarations:0};
}
};
var filename = process.argv[2];
console.log('Processing', filename);
var ast = esprima.parse(fs.readFileSync(filename));
estraverse.traverse(ast, {
enter: function(node) {
if (node.type === 'FunctionDeclaration') {
addStatsEntry(node.id.name); //4
functionsStats[node.id.name].declarations++;
} else if (node.type === 'CallExpression' && node.callee.type === 'Identifier') {
addStatsEntry(node.callee.name);
functionsStats[node.callee.name].calls++; //5
}
}
});
Not sure how to differentiate the native API calls.
Any hint would help. Thanks in anticipation.
if i run my code in mozilla firefox after i click scan in UI select source window is opened and then it crashed.
bt the same code if i run on chrome it scan the image in the scanner after that if i click the scan on the new window it scan properly and crashed during file transfer and chrome tell a error message "a plugin (shockwave flash) isnt responding "
what may be the prob
function onScan(no_of_pages)
{
if (DWObject)
{
if (DWObject.SourceCount > 0)
{
DWObject.SelectSource();
DWObject.IfDisableSourceAfterAcquire = true;
DWObject.AcquireImage();
DWObject.MaxImagesInBuffer = no_of_pages;
}
else
alert("No TWAIN compatible drivers detected.");
}
}
function Dynamsoft_ChangeConfig(config){
config.onPrintMsg = g_DWT_PrintMsg;
}
function g_DWT_PrintMsg(strMessage) {
alert(strMessage);
}
function OnPostTransferCallback()
{
try{
if(DWObject.MaxImagesInBuffer == DWObject.HowManyImagesInBuffer)
{
DWObject.CloseSource();
sendToFlash() ;
}else
{
//TBD
}
}catch(err){
alert(err.message);
}
}
//Call back function from the
function sendToFlash()
{
try{
var flashMovie = window.document.flashContent;
flashMovie.sendToActionScript(DWObject.HowManyImagesInBuffer);
//document.getElementById("ICANSWF").sendToActionScript();
}catch(err){
alert(err.message);
}
}
//call from flash for uploading documents
function onUpload(serialNo)
{
//alert("upload the file");
var imageArr = new Array();
try{
var imageName;
var uploadPage;
var serverHost;
var CurrentPathName = unescape(location.pathname); // get current PathName in plain ASCII
var CurrentPath = CurrentPathName.substring(0, CurrentPathName.lastIndexOf("/") + 1);
uploadPage = CurrentPath+"TempUpload.php";
//uploadPage = CurrentPath+"UploadDocument.php";
//serverHost = "blabla";
//window.Plugin.HTTPPort =1451;
serverHost = "our host";
DWObject.HTTPPort = 80;
DWObject.IfSSL = false;
//alert(Plugin.HowManyImagesInBuffer);
for(var i=0;i < DWObject.HowManyImagesInBuffer;i++)
{
imageName = serialNo+"_"+(i+1)+".png";
DWObject.HTTPUploadThroughPost(serverHost,i,uploadPage,imageName);
if (DWObject.ErrorCode == 0)
{
//alert(imageName);
imageArr.push({"label":imageName,"source":"http://"+serverHost+":"+DWObject.HTTPPort+"/icanindonesia/AppData/Temp/"+imageName}); //Push image name and location in an array
}
else //succeded
{
alert(DWObject.ErrorString);
//imageArr[i] = imageName;
//alert(imageArr[i]);
}
}
}catch(err){
//alert("onUpload");
alert(err.message);
}
console.log(imageArr);
return imageArr;
}
function startDownload(url)
{
//var url='.zip';
window.open(url,'Download');
}
function openDocument(url){
window.open(url, '_blank',"ican image viewer");
}
#priya, this is Rachel from Dynamsoft.Thanks for using our Dynamic Web TWAIN SDK. Which version of Firefox and Chrome are you using? We now also have newer version of Dynamic Web TWAIN which you may try. Please contact our support team to get better help.
Hey i have been able to write an nsIStreamListener listener to listen on responses and get the response text following tutorials at nsitraceablechannel-intercept-http-traffic .But i am unable to modify the response sent to browser.Actually if i return the reponse and sent back to chain it reflects in firebug but not in browser.
What i am guessing is we will have to replace default listener rather than listening in the chain.I cant get any docs anywhere which explains how to do this.
Could anyone give me some insight into this.This is mainly for education purposes.
Thanks in advance
Edit : As of now i have arrived at a little solutions i am able to do this
var old;
function TracingListener() {}
TracingListener.prototype = {
originalListener: null,
receivedData: null, //will be an array for incoming data.
//For the listener this is step 1.
onStartRequest: function (request, context) {
this.receivedData = []; //initialize the array
//Pass on the onStartRequest call to the next listener in the chain -- VERY IMPORTANT
//old.onStartRequest(request, context);
},
//This is step 2. This gets called every time additional data is available
onDataAvailable: function (request, context, inputStream, offset, count) {
var binaryInputStream = CCIN("#mozilla.org/binaryinputstream;1",
"nsIBinaryInputStream");
binaryInputStream.setInputStream(inputStream);
var storageStream = CCIN("#mozilla.org/storagestream;1",
"nsIStorageStream");
//8192 is the segment size in bytes, count is the maximum size of the stream in bytes
storageStream.init(8192, count, null);
var binaryOutputStream = CCIN("#mozilla.org/binaryoutputstream;1",
"nsIBinaryOutputStream");
binaryOutputStream.setOutputStream(storageStream.getOutputStream(0));
// Copy received data as they come.
var data = binaryInputStream.readBytes(count);
this.receivedData.push(data);
binaryOutputStream.writeBytes(data, count);
//Pass it on down the chain
//old.onDataAvailable(request, context,storageStream.newInputStream(0), offset, count);
},
onStopRequest: function (request, context, statusCode) {
try {
//QueryInterface into HttpChannel to access originalURI and requestMethod properties
request.QueryInterface(Ci.nsIHttpChannel);
//Combine the response into a single string
var responseSource = this.receivedData.join('');
//edit data as needed
responseSource = "test";
console.log(responseSource);
} catch (e) {
//standard function to dump a formatted version of the error to console
dumpError(e);
}
var stream = Cc["#mozilla.org/io/string-input-stream;1"]
.createInstance(Ci.nsIStringInputStream);
stream.setData(responseSource, -1);
//Pass it to the original listener
//old.originalListener=null;
old.onStartRequest(channel, context);
old.onDataAvailable(channel, context, stream, 0, stream.available());
old.onStopRequest(channel, context, statusCode);
},
QueryInterface: function (aIID) {
if (aIID.equals(Ci.nsIStreamListener) ||
aIID.equals(Ci.nsISupports)) {
return this;
}
throw components.results.NS_NOINTERFACE;
},
readPostTextFromRequest: function (request, context) {
try {
var is = request.QueryInterface(Ci.nsIUploadChannel).uploadStream;
if (is) {
var ss = is.QueryInterface(Ci.nsISeekableStream);
var prevOffset;
if (ss) {
prevOffset = ss.tell();
ss.seek(Ci.nsISeekableStream.NS_SEEK_SET, 0);
}
// Read data from the stream..
var charset = "UTF-8";
var text = this.readFromStream(is, charset, true);
if (ss && prevOffset == 0)
ss.seek(Ci.nsISeekableStream.NS_SEEK_SET, 0);
return text;
} else {
dump("Failed to Query Interface for upload stream.\n");
}
} catch (exc) {
dumpError(exc);
}
return null;
},
readFromStream: function (stream, charset, noClose) {
var sis = CCSV("#mozilla.org/binaryinputstream;1",
"nsIBinaryInputStream");
sis.setInputStream(stream);
var segments = [];
for (var count = stream.available(); count; count = stream.available())
segments.push(sis.readBytes(count));
if (!noClose)
sis.close();
var text = segments.join("");
return text;
}
}
httpRequestObserver = {
observe: function (request, aTopic, aData) {
if (typeof Cc == "undefined") {
var Cc = components.classes;
}
if (typeof Ci == "undefined") {
var Ci = components.interfaces;
}
if (aTopic == "http-on-examine-response") {
request.QueryInterface(Ci.nsIHttpChannel);
console.log(request.statusCode);
var newListener = new TracingListener();
request.QueryInterface(Ci.nsITraceableChannel);
channel = request;
//newListener.originalListener
//add new listener as default and save old one
old = request.setNewListener(newListener);
old.originalListener = null;
var threadManager = Cc["#mozilla.org/thread-manager;1"]
.getService(Ci.nsIThreadManager);
threadManager.currentThread.dispatch(newListener, Ci.nsIEventTarget.DISPATCH_NORMAL);
}
},
QueryInterface: function (aIID) {
if (typeof Cc == "undefined") {
var Cc = components.classes;
}
if (typeof Ci == "undefined") {
var Ci = components.interfaces;
}
if (aIID.equals(Ci.nsIObserver) ||
aIID.equals(Ci.nsISupports)) {
return this;
}
throw components.results.NS_NOINTERFACE;
},
};
var observerService = Cc["#mozilla.org/observer-service;1"]
.getService(Ci.nsIObserverService);
observerService.addObserver(httpRequestObserver,
"http-on-examine-response", false);
This example works for me on Firefox 34 (current nightly): https://github.com/Noitidart/demo-nsITraceableChannel
I downloaded the xpi, edited bootstrap.js to modify the stream:
132 // Copy received data as they come.
133 var data = binaryInputStream.readBytes(count);
134 data = data.replace(/GitHub/g, "TEST");
135 this.receivedData.push(data);
installed the XPI then reloaded the github page. It read "TEST" in the footer.
The version of code you posted doesn't actually pass the results back to the old listener, so that's the first thing that ought to be changed.
It also may have interacted with Firebug or another extension badly. It's a good idea to try reproducing the problem in a clean profile (with only your extension installed).
I'm using mootools-core-1.4.5.js in a Windows 8 Metro JavaScript App, and when a try to Create App Packages, I got an error at the Validation step :
mootools-core-1.4.5.js has JavaScript syntax or other problems.
I found a solution that works for me.
I used mootools-core-1.4.5-full-compat.js and I commented out these lines :
//Browser.exec = function(text){
// if (!text) return text;
// if (window.execScript){
// window.execScript(text);
// } else {
// var script = document.createElement('script');
// script.setAttribute('type', 'text/javascript');
// script.text = text;
// document.head.appendChild(script);
// document.head.removeChild(script);
// }
// return text;
//};
//String.implement('stripScripts', function(exec){
// var scripts = '';
// var text = this.replace(/<script[^>]*>([\s\S]*?)<\/script>/gi, function(all, code){
// scripts += code + '\n';
// return '';
// });
// if (exec === true) Browser.exec(scripts);
// else if (typeOf(exec) == 'function') exec(scripts, text);
// return text;
//});