On Wednesday, October 16, 2013 1:46:48 PM UTC+5:30, Vasu Yadav wrote: > On Friday, October 4, 2013 6:16:36 PM UTC+5:30, Bobby Holley wrote: > > > On Fri, Oct 4, 2013 at 2:36 PM, <vasuyadavkri...@gmail.com> wrote: > > > > > > > > > > > > > Based on my understanding, I need to create a JS XPCOM component apart > > > > > > > from the existing C++ XPCOM component I already have. All the JavaScript > > > > > > > function calls need to be made from JS XPCOM component. > > > > > > > > > > > > > > > > > > > Precisely. > > > > > > > > > > > > > > > > > > > How will the C++ XPCOM and JS XPCOM communicate to each other? Can we > > > > > > > instantiate JS XPCOM component from C++ XPCOM Component? > > > > > > > > > > > > > > > > > > > Yes. The great the about XPCOM components is that they can be instantiated > > > > > > and manipulated in either C++ or JS - the language of the implementation > > > > > > doesn't matter. > > > > > > > > > > > > > > > > > > > > I want to deliver only one .xpi to my customers. I hope it is possible to > > > > > > > package both C++ XPCOM and JS XPCOM components in the same .xpi file. > > > > > > > Please let me know if this is possible and whether you see any problems in > > > > > > > this approach. > > > > > > > > > > > > > > > > > > > Yep, that should work just fine. > > > > > > > > > > > > Here are some links that might be useful: > > > > > > > > > > > > https://developer.mozilla.org/en/docs/How_to_Build_an_XPCOM_Component_in_Javascript > > > > > > http://kb.mozillazine.org/Implementing_XPCOM_components_in_JavaScript > > > > > > > > > > > > bholley > > > > Sorry for troubling you again. > > > > I am trying to create one sample JavaScript XPCOM component.But not able to > instantiate JavaScript XPCOM component from C++ code. > > > > Steps to create JavaScript XPCOM component- > > 1) Create nsIHelloWorld.idl file for nsIHelloWorld interface. > > 2) Create nsIHelloWorld.js file > > 3) Generating .xpt and header file using Python22.0. > > 4) Instantiate JavaScript XPCOM component from C++ code. > > > > Code- > > nsIHelloWorld.idl > > ---------------------------------------------------------- > > #include "nsISupports.idl" > > [scriptable, uuid(8e001740-322b-11e3-aa6e-0800200c9a66)] > > interface nsIHelloWorld : nsISupports > > { > > string Hellovasu(); > > }; > > ---------------------------------------------------------- > > > > nsIHelloWorld.js > > ----------------------------------------------------------------------------------------------------- > > Components.utils.import("resource://gre/modules/XPCOMUtils.jsm"); > > function HelloWorld() > > { > > } > > HelloWorld.prototype = { > > classDescription: "My Hello World Javascript XPCOM Component", > > classID: Components.ID("{031572f4-3629-11e3-98fd-ce3f5508acd9}"), > > contractID: "@vasu.com/firefox/helloworld;1", > > QueryInterface: > XPCOMUtils.generateQI([Components.interfaces.nsIHelloWorld]), > > > > Hellovasu: function() { > > return "Hello World!"; > > } > > }; > > var components = [HelloWorld]; > > if (XPCOMUtils.generateNSGetFactory) > > this.NSGetFactory = XPCOMUtils.generateNSGetFactory([components]); // > Firefox 4.0 and higher > > else > > var NSGetModule = XPCOMUtils.generateNSGetModule([components]); // > Firefox 3.x > > ---------------------------------------------------------------------------------------------------- > > > > > chrome.manifest > > ---------------------------------------------------------------------------------- > > interfaces components/nsIHelloWorld.xpt > > component 031572f4-3629-11e3-98fd-ce3f5508acd9 nsIHelloWorld.js > > contract @vasu.com/firefox/helloworld;1 > {031572f4-3629-11e3-98fd-ce3f5508acd9} > application={ec8030f7-c20a-464f-9b0e-13a3a9e97384} > > ----------------------------------------------------------------------------------- > > > > Instantiate JavaScript XPCOM compnent from C++ code > > ----------------------------------------------------------------------------------------------- > > #include "nsComponentManagerUtils.h" > > #include "nsIHelloWorld.h" > > > > nsCOMPtr<nsISupports> iSupports = > do_CreateInstance("@vasu.com/Firefox/helloworld;1",&rv1); > > or > > nsCOMPtr<nsIHelloWorld> ihello = > do_CreateInstance("@vasu.com/Firefox/helloworld;1",&rv1); > > > > Not able to instantiate helloworld component. > > ----------------------------------------------------------------------------------------------- > > Logs value for IHello and rv1 in hexa formet- IHello=0 rv1=80040154 > > > > Do you fell anything missing or wrong in this code? If you have any better > approach or solution please suggest me. I am completely stuck here. > > > > Regards > > Vasu
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