If this is from a binary component, i would advise against passing JSVals directly, because the APIs you need to manipulate are no longer exported (they're still temporarily exported in Windows IIUC, but that's changing soon). See https://bugzilla.mozilla.org/show_bug.cgi?id=978995
Instead, you might consider passing an [array] of nsIVariants. See the example below: http://mxr.mozilla.org/mozilla-central/source/toolkit/mozapps/extensions/amIWebInstallListener.idl#50 On Wed, Aug 13, 2014 at 7:45 AM, Shanmugham Sundaram <shansyman...@gmail.com> wrote: > Hi, > > > I have to pass an array of strings (or JS::Value array) to JS-XPCOM from my > C++ code. I could not find the proper example in C++ to implements this. > > Based on the "jsFunction" I am passing in JS-XPCOM, i will extract the > correct number of values in the JS and call the expected function. > > How to pass the array of JS::Value to JS::HandleValue in the C++ fn ? Your > help is highly appreciated > > > 1 - My IDL as below > > #include "nsISupports.idl" > #include "nsIDOMWindow.idl" > [scriptable, uuid(e583b11e-2043-11e4-9070-fd8b1d5d46b0)] > interface nsISbCollectURL: nsISupports > { > jsval callJSXPCOMFunction(in nsIDOMWindow domWindow, in wstring jsFunction, > in unsigned short argc, in jsval argv); > > }; > > 2 My "C++" Header file has the following signature (after compiled by > /gecko-sdk/xulrunner-sdk/sdk/bin/typelib.py ) > > NS_IMETHOD CallJSXPCOMFunction(nsIDOMWindow *domWindow, const char16_t * > jsFunction, uint16_t argc, JS::HandleValue argv, JS::MutableHandleValue > _retval) = 0; > > --> How to convert the populate JS::Value arrays to "JS::HandleValue param" > in the method signature? I got stuck here. <--- > > > 3 - MY JS-XPCOM as below > > Components.utils.import("resource://gre/modules/XPCOMUtils.jsm"); > > function MyComponent() { } > > MyComponent.prototype = { > classDescription: "test JS XPCOM Component", > classID: > Components.ID("{8f1a877e-2045-11e4-b92a-1b8d1d5d46b0}"), > contractID: "@test.com/mytest/jssource;1", > QueryInterface: > XPCOMUtils.generateQI([Components.interfaces.nsISbCollectURL,Components.interfaces.nsISupports]), > > callJSXPCOMFunction: function(win, jsFunction, argc, argv) > { > win.wrappedJSObject.alert("Coming to callJSXPCOMFunction"); > win.wrappedJSObject.alert(argc); > if(jsFunction == "readMe") > { > > win.wrappedJSObject.alert("Coming to readMe"); > var name ; > var age; > var hobby; > if(argc >= 1) > var name = argv[0]; > if(argc >= 2) > var age = argv[1]; > if(argc >= 3) > var hobby = argv[2]; > var as = "shan : name : " +name + " age " + age + > " hobby : " + hobby); > var myData = win.wrappedJSObject.shan_readme(name, > age, hobby); > return myData; > > }else if(jsFunction == "writeMe"){ > win.wrappedJSObject.alert("Coming to writeMe"); > if(argc >= 1) > var xmlStuff = argv[0]; > > win.wrappedJSObject.alert(xmldata); > return win.wrappedJSObject.shan_rwriteme(xmldata); > } > } > > }; > > > var components = [MyComponent]; > > if ("generateNSGetFactory" in XPCOMUtils) > var NSGetFactory = XPCOMUtils.generateNSGetFactory(components); > else > var NSGetModule = XPCOMUtils.generateNSGetModule(components); > > > Thanks > Shan > _______________________________________________ > dev-platform mailing list > dev-platform@lists.mozilla.org > https://lists.mozilla.org/listinfo/dev-platform _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
