XPTC Stub

Hi all Is there any way to get the real object from the XPTCStub? Best Regards, Avishay

nsIStreamConverter

I'm trying to create a component which lets me convert an application/ xquery MIME type into something like application/xml, using an approach similar to that in http://mxr.mozilla.org/mozilla/source/browser/components/feeds/src/FeedConverter.js .. Any ideas on why it doesn't seem to get triggered when there is content served with this type? Any strategies for debugging? When I just try creating an instance, while the class is recognized, creating an instance doesn't seem to offer any methods I defined for the converter (just says it is nsISupports). // See http://weblogs.mozill

Gecko 1.9.2 on linux : "TypeError: Components.classes[cid] is undefined"

Hello, I 've download the C++ "HelloWorld" sample of XPCOM from here : http://nerdlife.net/building-a-c-xpcom-component-in-windows/ Finnally I've been able to compile it on linux with this Makefile : --------------------------------------------------------------------------------- CXX = c++ CPPFLAGS += -fno-rtti \ -fno-exceptions \ -shared # Change this to point at your Gecko SDK directory. GECKO_SDK_PATH = ../../sdk # GCC only define which allows us to not have to #include mozilla- config # in every .cpp file. If your

Firefox 3.6 : How can I obtain a HWND from the corresponding nsIDOMDocument object?

Dear List, I have this code , in which spiDocument is an nsIDOMDocument. nsresult lReturnVal; HWND hWnd=3DNULL,hParentWindow; nsCOMPtr<nsIDocument> spiDoc =3D do_QueryInterface(spiDocument);=20 nsIPresShell *piShell =3D spiDoc -> GetPrimaryShell(); if (piShell)=20 {=20 // Find hWnd=20 nsIViewManager* piViewManager =3D piShell -> GetViewManager();=20 if (piViewManager)=20 {=20 nsCOMPtr<nsIWidget> spiWidget;=20 piViewManager -> GetWidget(getter_AddRefs(spiWidget)); if (spiWidget)=20 hWnd =3D static_cast<HWND> (spiWidget -> = GetNativeData(NS_NA

Threading issue

Hello, I'm trying to create a small http server using nsIServerSocket in GUI application. I create the instance of the server in the following // CODE BLOCK STARTS /* nsCOMPtr<nsIServerSocket> */ m_serv = do_CreateInstance(NS_SERVERSOCKET_CONTRACTID, &rv); if (NS_FAILED(rv)) { return rv; } rv = m_serv->Init(port, PR_TRUE, 5); if (NS_FAILED(rv)) { return rv; } m_socketListener = new MySocketListener(this); rv = m_serv->AsyncListen(m_socketListener); // CODE BLOCK ENDS and here is my socket listener method // CODE BLOCK STARTS NS_IMETHODIMP MySocketListener::O

Help Needed on XUL.WebProgressListner

Hello, I have code which converts html files to pdf files, this works fine with a single file. But I want to iterate a directory and send files one by one for convrting from html to pdf, but while directory iteration it fails. I am Pasting my code here, /* Convert HTML to PDF with mozilla rendering engine. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; version 2 of the License. This program is distributed in the hope that it will be useful, but WITHOU

Binary resources in Firefox Extension

Hi, I'm developing a firefox extension using XPCOM in C++. I've put all images in the same DLL. I want to use those images on my extension toolbar. How can I achieve this? Or are there any other way for using binary resources in firefox extension? Any help would be highly appreciated. Thank you.

When i used NS_InitXPCOM2 more than one time in one process,it crashed!

First,i used NS_InitXPCOM2 in one of my function and invked NS_ShutdownXPCOM before leaving the this function.And when i invoked NS_InitXPCOM2 or NS_InitXPCOM3 for the second time in other functions,it comes a deadlock error and the application crahed! can anybody help? Can the NS_InitXPCOM2 be invoked more than one time in one process?

Calling PromptUsernameAndPassword crashes Firefox with segmentation fault

Hello, I try to port a Firefox extension from Windows to Linux. The extension include a XPCOM component based on the nsIAuthPrompt interface. In the first step the extension stores the default prompt auth component: NS_IMETHODIMP Example::SetDefaultAuthPrompter(nsIAuthPrompt *defPrompt) { theApp.m_defPrompt=defPrompt; return NS_OK; } My own prompt component use this later: NS_IMETHODIMP ExampleAuthPrompt::PromptUsernameAndPassword(const PRUnichar *parent, const PRUnichar *text, const PRUnichar *passwordRealm, PRUint32 savePassword, PRUnichar **user, PRUnichar

Re: Cant find a way to open AppData/LocalLow directory...

After you get 'AppData/Local' folder., call SetNativeLeafName(NS_LITERAL_CSTRING("LocalLow") of nsIFile. Good luck. On Wed, Jan 13, 2010 at 4:00 AM, <dev-tech-xpcom-request@lists.mozilla.org>wrote: > Send dev-tech-xpcom mailing list submissions to > dev-tech-xpcom@lists.mozilla.org > > To subscribe or unsubscribe via the World Wide Web, visit > https://lists.mozilla.org/listinfo/dev-tech-xpcom > or, via email, send a message with subject or body 'help' to > dev-tech-xpcom-request@lists.mozilla.org > > You can reach the person managing the list at >

Retrieving value of a specific string property throws error in FF 3.0.8 /3.5.6

Hi, I'm trying to retrieve the value of the string property 'capability.policy.localfilelinks.sites' on Firefox/Win. This is the code snippet I've tried: netscape.security.PrivilegeManager.enablePrivilege ('UniversalXPConnect'); var prefs = Components.classes["@mozilla.org/preferences-service; 1"].getService(Components.interfaces.nsIPrefBranch); var value = prefs.getCharPref ("capability.policy.localfilelinks.sites"); My intention is to check if 'value' contains two specific sites. This is the error I see from the Firebug console in 3.0.8: [Exception... "Cannot modify prop

Cancel request and auto-generate response.

Hi, I am trying to write an XPCOM component that will selectively cancel some requests and send back an auto-generated response. I have an observer listening for http-on-modify-request. If a request meets some requirement I call the Cancel(NS_BINDING_ABORTED) then use the current nsIStreamListener and call the OnStartRequest, OnDataAvailable, and OnStopRequest with my auto-generated data. However, I get unexpected Null Pointer Exceptions when I call OnStartRequest. Here is the my pseudo code: NS_IMETHODIMP WSComponent::Observe(nsISupports *aSubject, const char *aTopic, const PRUnich

Is there a way to save chrome path file in .jar archive to a absolute path file ?

Hi, Is there a way to save chrome path file in .jar archive to a absolute path file ? The scenario is that there is a file exist in a .jar archive file, and I want to extract that file from the chrome path in a xul application. Any suggestions? Thanks in advance. --=20 =B5=CB=B6=AC=B6=AC =B5=E7=BB=B0=A3=BA51570010-6495

Returning Unsafe object from XPCOM written in JS to C++

I have created a XPCOM that needs to return unsafe ojbects (DOM elements) that are not safe for example the following function: nsIVariant GetParentNode(nsISupports e); which is called from C++ XPCOM object. the JS implementation of GetParentNode is:: function GetParentNode(e){ return e.parentNode; } prior to firefox 3.5.6 everything was ok. in firefox 3.5.6 for some reason i do not get an nsGenericElement anymore but nsXPCTStubBase object. do i need to perform new XPCNativeWrapper(e.parentNode); instead of just returning the node?

MySQL xpcom connector

Hi there, After searching for a few hours, I'm ready to ask the experts... Mysqlxpcom project seems dead (looked alive around 2004). A search for "mysql" on this list actually turned up no results today. Googling "firefox mysql" yields little. This seems like a no-brainer...How would one speak directly to a mysql server via firefox? Seems like an XPCOM application would be the ticket, or is that looking in the wrong direction? Is there such an app? Any idea why this seems to be an obscure need? Thanks for any pointers

XPConnect QueryInterface forcing a NS_NOINTERFACE

In my (actually songbird extension, so it may be a slightly older build of XPCOM), I have a class written in javascript, which implements a custom interface in an xpt file in the extensions. I've tried this using both XPCOMUtils.js and a by-hand function definition. called QueryInterface to my custom interface, even though it is defined causes a NS_NOINTERFACE result. However if I do jsObj = object.wrappedJSObject jsObj.QueryInterface(Components.interfaces.awITelescope); it returns the object as it should. All my trials points to the function working okay, but somewhere along the

Sporadic XPCOM registration issue with Windows

Hi, Sorry for boring you again with a registration issue, but I'm stuck. I have three XPCOMs, coded in C++, which work well with Linux. They also mainly work with Windows Vista or XP (also fresh installed). I write "mainly", because time to time, I have a bug report about a compute= r where the components do not register. So it seems that I have anywhere a compatibility issue but I don't achieve = to find where. I have checked: * The component itself and the xulrunner binaries (In fact, it works almost= all the time). * The component dependences with "dependence walker": on

How to get X11 Window Id?

Hi All, Need to write an XPCOM which returns X11 window id for the current window. The entire problem is to save window thumbnail to some file to pass it to some external application (a window manager actually). So, to identify the saved thumbnail I would like to name the file as winid.png. Is it possible to do that in JavaScript or in C++? Respectfully, Michael

Baume and Mercier Capeland S Mens Watch 8220

Baume and Mercier Capeland S Mens Watch 8220 http://www.watchestrade.net/Baume-Mercier-Capeland-S.html http://www.watchestrade.net/Baume-Mercier-Watches.html http://www.watchestrade.net/Baume-and-Mercier-Capeland-S-Mens-Watch-8220.html http://www.watchestrade.net/ <br />Automatic Baume Mercier,Titanium case and bracelet, Grey dial with black subdials, luminous hands and hour markers, Displays date at 3, Screw down fluted crown, Rotating bezel, Certified Chronometer, Water Resistant to 200 meters.<BR><BR>Baume et Mercier Capeland S Men's Watch 8220

Usage nsIDocument::CreateElem instead of nsIDOMDocument::CreateElement

Hi everyone, Sorry to bother you again, but I can't find a solution. Here is the context : a plugin (using an XPCOM component) is running on Firefox , and it works mainly for XHTML pages. At plugin initialization , I retrieve the nsiDOMWindow (NPN_GET_VALUE with NPNVDOMWindow) and then get the nsIDOMDocument associated with it. Since my goal is to add HTML objects dynamically , I tried to use nsiDOMDocument::CreateElement : on UNIX, no problem, whereas on Windows the plugin crashes immediately (same thing when I tried to get a reference to the <body>). Since nsiDOMDocument::CreateEl

Emulating mozBackgroundRequest via an nsIObserver

I've got some code running from a DOM Worker launched from Chrome. The worker simply requests a resource by using XMLHttpRequest object. Unfortunately assigning mozBackgroundRequest to the object will not background the request as technically speaking code within the worker is not privileged at all and as a result in case the XMLHttpRequest object encounters a Basic Auth protected form, an authentication dialog will pop-up which is annoying. Hopefully in the future DOM Workers will be able to assign mozBackgroundRequest to arbitrary XMLHttpRequest objects but for now I come up with

Possible WebProgressListener bug in Firefox 3.6?

I=92m seeing some strange behaviors in Firefox Beta 3.6. I implemented a web progress listener which subscribe to the following events/ notifications =91nsIWebProgress::NOTIFY_STATUS|nsIWebProgress::NOTIFY_SECURITY=92 I=92m trying to query the =91nsIChannel=92 interface from the nsIRequest interface which is being passed to =93OnSecurityChange=94 and =93OnStatusChange=94 as one of its parameters. Performing the following operation often fails thus I=92m unable to get security information. nsCOMPtr<nsIChannel> spChannel =3D do_QueryInterface( aRequest ); // Often fails (not alway

using XPCOM to periodically refresh the browser

hello=2C =20 i am new to XPCOM (today in fact)=2C and so far i have a working template= =2C ie idl file is building fine=2C objects are implemented fine=2C and the= dll/xpt files are installed to firefox/components. i can successfuly insta= ntiate my object and call methods on it using javascript. =20 my overall goal is this: i need to be able to refresh all open firefox brow= sers=2C inluding all tabs=2C periodically (lets say 30 every secs). is XPCO= M the best way to go about this ? if so could someone please provide me wit= h some pointers to get me started ? =20

Duplicate DNS config in HOST file of Windows XP

Hi, Does anyone meet the problem of "Duplicate DNS config in HOST file of Windows XP crash xulrunner" ? The HOST file exists in WINDOWS\system32\drivers\etc\hosts. If there are two the same IP&DNS pair, such as 192.168.0.1 www.test.com 192.168.0.1 www.test.com adding HTTPS certification to xulrunner will crash the program.

Read data from serial port

I'm trying to control a POS printer attached to serial port, using XPCOM to read and write to /dev/sttyS0. In fact, I almost succedded, and got the printer working! But I have problems trying to read from the blocking device when the printer is turned off and so there is no data available to be read. As expected, nsIScriptableFileInputStream.read() blocks when no data is available, the UI completly hangs, and the process must manually killed. So I used a nsIInputStreamPump to perform asynchronously reads from the device. Thats works fine, I got the data if there are some, and the

imgITools::DecodeImageData implemented or not implemented?

Hi everyone, I'm facing a weird issue since two days, and it seems like you are my last resort. In advance, sorry for the long post, let's go to the point. --> The goal is to retrieve the data of an image situated on the web (e.g. http://www.google.com/images/firefox/sprite2.png), which means get image's width, height, bytes ... , inside an XPCOM component. Basically, this can be done by using an imgIContainer object. And in order to obtain a reference to the imgIContainer of the image, my idea was to use the imgITools interface with the nsIInputStream of the image, it gives somethin

get environment strings by Mozilla Xpcom

Hi,guys, I want to get the directory of "My Documents", the code is : var wrk = Components.classes["@mozilla.org/windows-registry- key;1"] .createInstance (Components.interfaces.nsIWindowsRegKey); var oType = "Software\\Microsoft\\Windows\\CurrentVersion\ \Explorer"; wrk.open(wrk.ROOT_KEY_CURRENT_USER, oType, wrk.ACCESS_READ); if(wrk.hasChild("User Shell Folders")) { var subkey = wrk.openChild("User Shell Folders", wrk.ACCESS_READ); var id;

Retrieving of hostname

Hello, I'm looking for a way to get hostname of the computer that runs the firefox. Could you tell me, is there a way to retrieve hostname or run system command `hostname` to grub results from it? -- Sincerely, Yaroslav

decoding of long Int

Hi, I am new to Firefox. While debugging the Firefox with gdb, I found there are some variables/objects holds long int value. It is 15 digit value for example, In XPCWrappedNative::CallMethod, following long Int I found, Which I cannot decode? name = 140340262156644 classword = 140340131011560 Does anyone knows how to decode this type of values? regards, Kailas

How mapping of JS objects methods with native function name is done

Hi, I am new to Firefox. I want to know how the JS engine after executing the Javascript make the call to appropriate function. For example, if javascript code is document.write "hello" then how JS engine calls the function nsHTMLDocument::Write(const nsAString& aText) in Firefox. I want to know how or where the mapping of JS object method with Firefox native function name is done, such as mapping of document.write to nsHTMLDocument::Write. regards, Kailas

Disappearing windows event when using embedded Mozilla browser

I have a java stand alone app using swt and embedding the Mozilla browser running on Windows. An external admin application posts Windows Events representing administrative functions to which my app must respond. In my readAndDispatch loop I peek at the event queue looking for my external admin event. Most of the time this works fine, however, there are occasions where the event is never seen by the readAndDispatch loop. I have tested this by hitting a break point in the loop, dispatching the admin event from the admin external client, and then releasing the break point. The ad

OpenGL plugin (Firefox) and JavaScript overlay

Hi all i have some issue with firefox plugin (using openGL context). which is nicely working. but i like to overlay a javascript gui, and once it gets hidde behind the plugin (opengl, rendering done in back ground thread) with iframe under iexplorer similar activeX works ok. but with firefox it doesn; t work is there any suggestion? adrian -- ******************************************** Adrian Egli

Creating instance in thread

I'm finding a strange behavior that I can't seem to pin down. I created a very bare bones XPCOM object as described here: https://developer.mozilla.org/en/How_to_Build_an_XPCOM_Component_in_Javascript The trouble happens when I create an instance of the XPCOM object inside of a thread (threads setup according to: https://developer.mozilla.org/en/The_Thread_Manager). Calling this line inside of the thread works fine the first time Firefox is run: var myComponent = Components.classes['@dietrich.ganx4.com/helloworld; 1'] .createInstance (Components.interf

Firefox extension and socket

Hi all, I'm having a problem with a simple Firefox extension that should comunicate with a php script in a local network. They only should exchange a simple message. This is the JavaScript code of the extension: ------------------------------------------------------------------------------------------ function getPageContent() { var listener = { finished : function(data){ alert("Inizio dati letti\n"+data+"\nFine dati letti"); } } readAllFromSocket("192.168.1.2",9999,"Prova messaggio da Firefox",listener); } function readAllFromSocket(host,port,outputDa

calling xpcom from script on random webpage

I have a script I'm using that is called by my overlay.xul for my firefox plugin. in order to get it to work, i call unsafeWindow.netscape.security.PrivilegeManager.enablePrivilege ("UniversalXPConnect"); but, this line doesn't work (i get an error saying i can't access it "components.classes": Components.classes[cid].createInstance(); I am using the extension only on my computer so I really dont care about security. I set signed.applets.codebase_principal_support to true but that didn't help. same problem.

interfacing between native code and firefox javascript

I'm trying to develop a library that allows me to load firefox and then interface with the browser's html using xpcom/firefox-extension. I've managed to compile my test XCPOM module and get the firefox extension built and registered thanks the group's help. Overall, the steps I want to be able to do are: 0.) have the extension installed 1.) Have my native library load Firefox with the a specific url. 2.) Register a callback with my library that is called when a certain XPCOM interface method is called. 3.) Get a reference to the XPCOM object used by Firefox. 4.) Use the object to

Compiling with Visual Studio

Hi. I've been trying to build an XPCOM dll with Visual Studio and keep getting this weird problem. When I try to compile the IDL file in my project, it complains that it cannot find nsISupports.idl. I have the gecko sdk installed and have set the "Addition Include Directories" correctly in Visual Studio to point to the xml-runner/sdk/include folder. everything else compiles fine. just having problems with the IDL. I even put the IDL directory into the Additional Includes Directory.

Firefox Add-on Limitations

I'm curious to know the limitations of a Firefox add-on or extension (is there a difference?) with regard to... * resizing and repositioning the firefox window on the desktop * controlling which tab is active * controlling the order of tabs * closing a tab Looking at http://www.oxymoronical.com/experiments/apidocs/ it is not apparent which interfaces I would leverage to take these actions. I assume that Firefox implements many more interfaces on top of the typical Xulrunner Xpcom interfaces... where can I find reference documentation for these? In short: I have experience wor

nsiclipboardcommands

Hi all, Does anyone know what happened to this interface and the support of it? I've only found a couple other people that have tried to use it and who are getting the same error I'm getting, such that it seems just broken in all accounts. The interface seems like a perfect fit for a simple clipboard management tool for extensions/apps that have context menu actions on UI elements like links, images, media, etc. I'd much rather use this interface than a couple other more raw clipboard interfaces. A lot of the algorithms and patterns of clipboard management are already encapsulated w

Getting the URI from the browser location bar

I need to get the string from the location bar in Firefox from C++ XPCOM. Any ides how to do this? The point is to find the URL that my extension is running from so I can block sites that are not white listed to use my extension. This would be functionality similar to sitelock in ActiveX.

Restricting browser to select domains and ip spaces

I'd like to restrict navigation (this is an embedded version of xulrunner) to a specific set of domains and IP spaces. What is the simplest way to do this? I have looked at both the nsIDocNavStartProgressCallback and nsIChannel interfaces but am not familiar (yet) on how to use them. Would replacing the nsIChannel interface be feasible or would I need to replace also the nsIHttpChannel, nsIFTPChannel, etc? Ideally, I'd like to show the user a custom error page when this occurs, but I'd also settle for having it look like an error status and then changing the page that is displaye

XPCOM, How to get access and modify text data entered by the user?

I'll explain in simple terms what I intend to do, so to be sure i don't miss any sollution. I want to be able to modify the text that the user enters in for example Google Docs or different blog websites and be able to alter that text before it is sent to the server. I need to display one text to the user on screen and send a different one to the server. What I need to know is how to get acces from XPCOM in the Mozilla framework to the objects (and what objects) that handle these operations. Any suggestions and ideeas are welcome. Thanks

Creating instance of JS XPCOM will make Firefox hang or crash.

I am trying to create an instance of a js xpcom component in a thread. unfortunately firefox always crashes or hangs (but with NO cpu usage). You can try the following script in ExecuteJS: ---------------------------- var aRunnable = { run: function run() { // create a component here. i chose nsILoginInfo, as you should have it as well var test = Cc["@mozilla.org/login-manager/loginInfo; 1"].createInstance(Ci.nsILoginInfo); } }; var ThreadMan = Cc["@mozilla.org/thread-manager;1"].getService (Ci.nsIThreadManager); var theThread = ThreadMan.newThread(0);

nsIContentPolicy in Firefox 3.5

Guys, Do you know if something is changed with nsIContentPolicy interface in Firefox 3.5? I have an XPCOM component implemented in C++ that implements nsIContentPolicy because i need ShouldLoad() event to obtain URLs from browser (if you know another, better way to catch every TOP-LEVEL URL, or how to catch onDocumentComplete event in C++ plugin, please tell me) and it worked great on FF3.0, but on FF3.5 it does not. I register "content-policy" category with category manager like this on plugin registration, like this: rv = catman->AddCategoryEntry("content-policy", GA

Worker object Mockup in XPCSHELL

Hi list, I've been trying to implement a Worker-like object via xpcom for use in xpcshell. As far as I can see, there isn't a component which I can directly access. Can someone provide me with pointers of how this can be achieved? Thanks in advance, pdp

DOM operation in thread?

Hi, I met a special question. The following statements are in a thread. Sometimes it will crash here. ... nsCOMPtr<nsIDOMDocument> doc = nsnull; doc = do_CreateInstance("@mozilla.org/xul/xul-document;1"); nsCOMPtr<nsIDOMText> messageText = nsnull; nsString wStrMessage; rv = doc->CreateTextNode(wStrMessage, getter_AddRefs(messageText)); nsCOMPtr<nsIDOMSerializer> serialize = nsnull; serialize = do_CreateInstance("@mozilla.org/xmlextras/xmlserializer; 1"); nsString xmlStr; rv = serialize->SerializeToString(messageText, xmlStr); ... And

Access to local files from XPCOM c++ components

Dear newsgroup I've come to little problem. I have some legacy code written in C++ and now I need to embed it in Firefox extension. I've made a XPCOM component with that legacy code and connected it with Firefox XUL code. Everything is running fine, until my legacy code accesses to files from disc (this files was brought with extension and are in same directory as an dll and xpt file - they are data files with finite state machines used in whole legacy code). I've come to conclusion that in legacy code, calling fopen() function returns NULL, becouse data files are not found (however t

Override HTTPProtocolHandler

What does overriding the HTTPProtocolHandler entail? I am dealing with a custom protocol which many users use simply by using a proxy, I'd like to override the HTTPProtocolHandler and catch these. In all other cases I want to just use the native HTTPProtocolHandler. Any advice is much appreciated.

Passing javascript objects to C++ XPCOM component

Hi, I'm still relatively new to XPCOM. Documentation is still kind of hard to go through, so I wanted to ask here. I know that in IE every javascript object implements IDispatch, so if it is passed to some C++ code, you can use IDispatch interface to get its members. How can I do the same in Firefox? If I define a javascript class within the javascript code, and then pass it to my XPCOM component as a parameter, how can I find some type information on it? Thanks

Invoke Javascript from scriptable plugin

I am developing a mozilla plugin that needs bidirectional communication between Plugin (C++) and Javascript. To give some background, I am porting an ActiveX component that works in IE. That ActiveX component raises events to HTML/Javascript. &lt;script language="JavaScript" for="obj" event="OnEvent()"> I spent enough time searching mozilla site/newsgroups/forums. I got some clues like nsIDOMEventTarget needs to be implemented etc. but I can't find a reasonably complete sample some thing like scriptable sample project in GeckoSDKsamples that gets me going. I would be thankful if some c