Re: nsIWebBrowserPrint

On Mar 5, 12:47 pm, "krithika" <[email protected]> wrote:
> Hi,
>
> Iam trying to do a printPreview and then getPrintPreviewNumPages() ,
> but it throws Execption.Did you succeed?
>
> regards,
> Krith
>
> On Feb 2, 6:58 pm, [email protected] wrote:
>
> > Hi!
> > I use JavaXPCOM to embed gecko into an awt canvas. A print button
> > should print the content.
> > If I compile and run the java class found below, wait for mozilla.org
> > to be rendered inside the canvas and then press the print button,
> > nothing is printed.
> > Sometimes (not always), a print dialog opens (but nothing happens
> > after pressing "ok")
> > Sometimes (not always) an exception is thrown:
> >  org.mozilla.xpcom.XPCOMException: The function "print" returned an
> > error condition  (0x80040111)
>
> > Can anyone tell me what's wrong?
> > Thanks in advance!
> > hs
> > -------------------------------------------
> > package bugs;
>
> > import java.awt.BorderLayout;
> > import java.awt.Button;
> > import java.awt.Canvas;
> > import java.awt.Frame;
> > import java.awt.event.ActionEvent;
> > import java.awt.event.ActionListener;
> > import java.io.File;
>
> > import org.mozilla.xpcom.GREVersionRange;
> > import org.mozilla.xpcom.IAppFileLocProvider;
> > import org.mozilla.xpcom.Mozilla;
> > import org.mozilla.xpcom.nsIAppStartup;
> > import org.mozilla.xpcom.nsIBaseWindow;
> > import org.mozilla.xpcom.nsIEventQueue;
> > import org.mozilla.xpcom.nsIEventQueueService;
> > import org.mozilla.xpcom.nsIInterfaceRequestor;
> > import org.mozilla.xpcom.nsIProxyObjectManager;
> > import org.mozilla.xpcom.nsIServiceManager;
> > import org.mozilla.xpcom.nsIWebBrowser;
> > import org.mozilla.xpcom.nsIWebBrowserPrint;
> > import org.mozilla.xpcom.nsIWebNavigation;
>
> > public class PrintTest extends Canvas {
>
> >   private nsIWebBrowser webBrowser;
>
> >   // used if no gre can be located automatically
> >   public static String FALLBACK_GRE_PATH = "/path/to/xulrunner";
>
> >   public static void main(String[] args) throws Exception {
> >     // init gtk
> >     // this line removes the warnings, but not the crash
> >     // sun.awt.X11.XToolkit.checkGTK();
>
> >     final PrintTest pt = new PrintTest();
> >     Button bt = new Button("print");
> >     bt.addActionListener(new ActionListener() {
> >       public void actionPerformed(ActionEvent e) {
> >         pt.print();
> >       }
> >     });
> >     Frame frame = new Frame("PrintTest");
> >     frame.setLayout(new BorderLayout());
> >     frame.add(bt, BorderLayout.NORTH);
> >     frame.add(pt, BorderLayout.CENTER);
> >     frame.setBounds(100, 100, 400, 400);
> >     frame.setVisible(true);
> >     Thread.sleep(2000);
> >     System.out.println("starting test...");
> >     pt.test();
> >   }
>
> >   public void test() throws Exception {
>
> >     Mozilla mozilla = Mozilla.getInstance();
> >     GREVersionRange[] range = new GREVersionRange[1];
> >     range[0] = new GREVersionRange("1.8.0", true, "1.9", false);
>
> >     File grePath = Mozilla.getGREPathWithProperties(range, null);
> >     if (null == grePath) grePath = new File(FALLBACK_GRE_PATH);
> >     LocationProvider locProvider = new LocationProvider(grePath);
> >     mozilla.initEmbedding(grePath, grePath, locProvider);
>
> >     Mozilla moz = Mozilla.getInstance();
>
> >     nsIServiceManager serviceManager = moz.getServiceManager();
> >     nsIAppStartup appStartup = (nsIAppStartup)
> > serviceManager.getServiceByContractID(
> >       "@mozilla.org/toolkit/app-startup;1",
> > nsIAppStartup.NS_IAPPSTARTUP_IID);
>
> >     String NS_IWEBBROWSER_CID = "F1EAC761-87E9-11d3-
> > AF80-00A024FFC08C"; //$NON-NLS-1$
> >     this.webBrowser = (nsIWebBrowser)
> > moz.getComponentManager().createInstance(NS_IWEBBROWSER_CID, null,
> >       nsIWebBrowser.NS_IWEBBROWSER_IID);
>
> >     nsIBaseWindow baseWindow = (nsIBaseWindow)
> > webBrowser.queryInterface(nsIBaseWindow.NS_IBASEWINDOW_IID);
>
> >     // long windowHandle = ((sun.awt.X11.XComponentPeer)
> > getPeer()).getWindow();
> >     long windowHandle = ((sun.awt.windows.WComponentPeer)
> > getPeer()).getHWnd();
>
> >     System.out.println("windowHandle " + windowHandle);
> >     baseWindow.initWindow(windowHandle, 0, 0, 0, getWidth(),
> > getHeight());
> >     System.out.println("inited");
> >     baseWindow.create();
> >     System.out.println("created");
> >     baseWindow.setVisibility(true);
> >     nsIWebNavigation webNavigation = (nsIWebNavigation) webBrowser
> >       .queryInterface(nsIWebNavigation.NS_IWEBNAVIGATION_IID);
> >     webNavigation.loadURI("http://www.mozilla.org",
> > nsIWebNavigation.LOAD_FLAGS_BYPASS_CACHE, null, null,
> >       null);
>
> >     appStartup.run();
>
> >   }
>
> >   public void print() {
> >     Mozilla moz = Mozilla.getInstance();
> >     nsIInterfaceRequestor ir = (nsIInterfaceRequestor) webBrowser
> >       .queryInterface(nsIInterfaceRequestor.NS_IINTERFACEREQUESTOR_IID);
> >     nsIWebBrowserPrint print = (nsIWebBrowserPrint) ir
> >       .getInterface(nsIWebBrowserPrint.NS_IWEBBROWSERPRINT_IID);
>
> >     nsIEventQueueService eventQueueServive = (nsIEventQueueService)
> > moz.getServiceManager()
> >       .getServiceByContractID("@mozilla.org/event-queue-service;1",
> >         nsIEventQueueService.NS_IEVENTQUEUESERVICE_IID);
> >     nsIEventQueue eventQueue = eventQueueServive
> >       .getSpecialEventQueue(nsIEventQueueService.UI_THREAD_EVENT_QUEUE);
> >     nsIProxyObjectManager proxyManager = (nsIProxyObjectManager)
> > moz.getComponentManager()
> >       .createInstanceByContractID("@mozilla.org/xpcomproxy;1", null,
> >         nsIProxyObjectManager.NS_IPROXYOBJECTMANAGER_IID);
> >     nsIWebBrowserPrint printProxy = (nsIWebBrowserPrint)
> > proxyManager.getProxyForObject(eventQueue,
> >       nsIWebBrowserPrint.NS_IWEBBROWSERPRINT_IID, print,
> > nsIProxyObjectManager.INVOKE_SYNC);
> >     printProxy.print(null, null);
> >   }
>
> >   public static class LocationProvider implements IAppFileLocProvider
> > {
> >     private final File libXULPath;
> >     int counter = 0;
>
> >     public LocationProvider(File grePath) {
> >       this.libXULPath = grePath;
> >     }
>
> >     public File getFile(String aProp, boolean[] aPersistent) {
> >       File file = null;
> >       if (aProp.equals("GreD") || aProp.equals("GreComsD")) {
> >         file = libXULPath;
> >         if (aProp.equals("GreComsD")) {
> >           file = new File(file, "components");
> >         }
> >       } else if (aProp.equals("MozBinD") || aProp.equals("CurProcD")
> > || aProp.equals("ComsD")
> >         || aProp.equals("ProfD")) {
> >         file = libXULPath;
> >         if (aProp.equals("ComsD")) {
> >           file = new File(file, "components");
> >         }
> >       }
> >       return file;
> >     }
>
> >     public File[] getFiles(String aProp) {
> >       File[] files = null;
> >       if (aProp.equals("APluginsDL")) {
> >         files = new File[1];
> >         files[0] = new File(libXULPath, "plugins");
> >       }
> >       return files;
> >     }
> >   }
>
> > }



I resolved this by adding settings.setShowPrintProgress(false);

regards,
Krith