[webkit-help] New to webkit
LG
lgmagic at gmail.com
Mon Aug 17 20:54:45 PDT 2009
Can anybody please help me out on this??
i am not finding any clue on web to have it compiled on android linux
kernel.
On Tue, Aug 4, 2009 at 2:25 PM, Jack Wootton <jackwootton at gmail.com> wrote:
> Sorry, i thought you meant a C class, not a class used with JSObjects.
>
> On Tue, Aug 4, 2009 at 3:42 AM, LG<lgmagic at gmail.com> wrote:
> > Doesnt this create a class??
> >
> > //create a class with a name
> > JSStringRef calObjectName = JSStringCreateWithUTF8CString(
> > "calendar");
> >
> > //create a class definition
> > JSClassDefinition calObjectDef;
> > calObjectDef.version = 1;
> > //calObjectDef.className = calObjectName
> >
> >
> > //create a context
> > //context = JSGlobalContextCreate(NULL);
> > //assert(JSValueIsObject(context, globalObject));
> >
> > //create the class
> > JSClassRef globalObjectClass = JSClassCreate(&calObjectDef);
> >
> >
> >
> > On Mon, Aug 3, 2009 at 6:16 PM, Jack Wootton <jackwootton at gmail.com>
> wrote:
> >>
> >> You say you'e created a class, but I can't see a class in your code.
> >>
> >> On Mon, Aug 3, 2009 at 1:36 PM, LG<lgmagic at gmail.com> wrote:
> >> > But is the location to place the file and the source code looks fine??
> >> >
> >> > On Mon, Aug 3, 2009 at 6:00 PM, Jack Wootton <jackwootton at gmail.com>
> >> > wrote:
> >> >>
> >> >> I have only modified an old s60 branch of webkit so can't help you on
> >> >> where to put the files and compile it, since this is done differently
> >> >> on s60. I'm sure someone who knows more can help with this (I would
> >> >> be interested too). However in the list of errors you get you don't
> >> >> have JSObjectCallAsFunction or JSObjectSetProperty. Presumably these
> >> >> are not undefined references? I had a similar problem on an old S60
> >> >> branch, I posted about it on Forum Nokia here
> >> >> http://discussion.forum.nokia.com/forum/showthread.php?t=172429 but
> >> >> received no help (but since you're using SquirrelFish I doubt it's
> the
> >> >> same issue).
> >> >>
> >> >> On Mon, Aug 3, 2009 at 12:56 PM, LG<lgmagic at gmail.com> wrote:
> >> >> > Hi Jack,
> >> >> >
> >> >> > thanks for the info,
> >> >> >
> >> >> > the problem here is i tried this and didnot work
> >> >> > i ll elaborate on what i have tried
> >> >> >
> >> >> > 1. i have created a class in JavascriptCore/API
> >> >> >
> >> >> > test.cpp
> >> >> >
> >> >> > #include "UnusedParam.h"
> >> >> > #include <JavaScriptCore/JavaScript.h>
> >> >> > #include <assert.h>
> >> >> > #include <math.h>
> >> >> > #include <setjmp.h>
> >> >> >
> >> >> >
> >> >> > static JSGlobalContextRef context = 0;
> >> >> > JSValueRef v;
> >> >> > JSValueRef exception;
> >> >> > JSStringRef functionBody;
> >> >> > JSObjectRef function;
> >> >> >
> >> >> > int main()
> >> >> > {
> >> >> >
> >> >> > //create a class with a name
> >> >> > JSStringRef calObjectName =
> >> >> > JSStringCreateWithUTF8CString("calendar");
> >> >> >
> >> >> > //create a class definition
> >> >> > JSClassDefinition calObjectDef;
> >> >> > calObjectDef.version = 1;
> >> >> > //calObjectDef.className = calObjectName
> >> >> >
> >> >> >
> >> >> > //create a context
> >> >> > //context = JSGlobalContextCreate(NULL);
> >> >> > //assert(JSValueIsObject(context, globalObject));
> >> >> >
> >> >> > //create the class
> >> >> > JSClassRef globalObjectClass = JSClassCreate(&calObjectDef);
> >> >> >
> >> >> > //create a global context
> >> >> > JSGlobalContextRef context =
> >> >> > JSGlobalContextCreate(globalObjectClass);
> >> >> > JSObjectRef globalObject =
> JSContextGetGlobalObject(context);
> >> >> >
> >> >> > //make the object
> >> >> > JSObjectRef calObject = JSObjectMake(context,
> globalObjectClass,
> >> >> > NULL);
> >> >> >
> >> >> >
> >> >> > //set properties
> >> >> > JSObjectSetProperty(context, globalObject, calObjectName,
> >> >> > calObject,
> >> >> > kJSPropertyAttributeNone, NULL);
> >> >> >
> >> >> >
> >> >> > exception = NULL;
> >> >> > v = NULL;
> >> >> >
> >> >> > JSStringRef getCal =
> >> >> > JSStringCreateWithUTF8CString("getCalendars");
> >> >> > functionBody = JSStringCreateWithUTF8CString("return NULL;");
> >> >> > function = JSObjectMakeFunction(context, getCal,0, NULL,
> >> >> > functionBody,
> >> >> > NULL, 1, &exception);
> >> >> > assert(function && !exception);
> >> >> > JSValueRef arguments[] = { JSValueMakeNumber(context, 2) };
> >> >> > v = JSObjectCallAsFunction(context, function, NULL, 1,
> arguments,
> >> >> > &exception);
> >> >> > JSStringRelease(getCal);
> >> >> > JSStringRelease(functionBody);
> >> >> >
> >> >> > return 1;
> >> >> > }
> >> >> >
> >> >> >
> >> >> > 2. i added this to the make file and i get the following errors
> >> >> >
> >> >> > undefined reference to `JSStringCreateWithUTF8CString`
> >> >> > undefined reference to `JSClassCreate`
> >> >> > undefined reference to `JSGlobalContextCreate`
> >> >> >
> >> >> > etc
> >> >> >
> >> >> > i am not sure where to put the file and compile
> >> >> > please guide me through the approach
> >> >> >
> >> >> >
> >> >> >
> >> >> >
> >> >> > On Mon, Aug 3, 2009 at 2:29 PM, Jack Wootton <
> jackwootton at gmail.com>
> >> >> > wrote:
> >> >> >>
> >> >> >> Hello,
> >> >> >>
> >> >> >> If you mean add a new JavaScript object, then here is a reply I
> >> >> >> wrote
> >> >> >> some time ago (copied and pasted).
> >> >> >>
> >> >> >> Here is the API:
> >> >> >>
> >> >> >>
> >> >> >>
> >> >> >>
> >> >> >>
> http://gemma.apple.com/documentation/Carbon/Reference/WebKit_JavaScriptCore_Ref/index.html#//apple_ref/doc/framework/javascriptcore_fw
> >> >> >>
> >> >> >> If this is what you wish to do, then the following is a rough
> guide
> >> >> >> of
> >> >> >> what you need to do:
> >> >> >>
> >> >> >> 1. Create an empty class definition, you can create an empty class
> >> >> >> definition using kJSClassDefinitionEmpty.
> >> >> >> 2. Use the class definition with the JSCoreAPI method
> >> >> >> "JSClassCreate"
> >> >> >> to create your class.
> >> >> >> 3. Use your new class with JSObjectMake to create your new
> JSObject
> >> >> >> (this will be your widget object).
> >> >> >> 4 Use JSObjectSetProperty to add your new JSObject as a property
> of
> >> >> >> the Window object.
> >> >> >>
> >> >> >> It maybe useful to look at the following files in the
> >> >> >> JavaScriptCore (Although, personally I didn't find them
> particularly
> >> >> >> easy to understand.)
> >> >> >>
> >> >> >> JavaScriptCore\API\testapi.c
> >> >> >> testapi.js
> >> >> >>
> >> >> >>
> >> >> >> There are also some example programs that do what you want to do,
> >> >> >> only
> >> >> >> with different objects.
> >> >> >>
> >> >> >> JSPong: http://developer.apple.com/SampleCode/JSPong/index.html
> >> >> >>
> >> >> >> JSInterpreter:
> >> >> >> http://developer.apple.com/samplecode/JSInterpreter/index.html
> >> >> >>
> >> >> >> More programs can be found here:
> >> >> >>
> >> >> >>
> http://developer.apple.com/SampleCode/Cocoa/idxInternetWeb-date.html
> >> >> >>
> >> >> >> On Mon, Aug 3, 2009 at 5:34 AM, LG<lgmagic at gmail.com> wrote:
> >> >> >> > Hi all,
> >> >> >> >
> >> >> >> > i am new to webkit and i need to add an new object/api to
> >> >> >> > javascript
> >> >> >> > core
> >> >> >> > can someone share and example and tell me how to compile it in
> >> >> >> > webkit
> >> >> >> >
> >> >> >> > anyhelp would be useful
> >> >> >> > thanks a lot
> >> >> >> >
> >> >> >> >
> >> >> >> > --
> >> >> >> > Ganesh
> >> >> >> >
> >> >> >> > _______________________________________________
> >> >> >> > webkit-help mailing list
> >> >> >> > webkit-help at lists.webkit.org
> >> >> >> > http://lists.webkit.org/mailman/listinfo.cgi/webkit-help
> >> >> >> >
> >> >> >> >
> >> >> >>
> >> >> >>
> >> >> >>
> >> >> >> --
> >> >> >> Regards
> >> >> >> Jack
> >> >> >
> >> >> >
> >> >> >
> >> >> > --
> >> >> > LG
> >> >> >
> >> >>
> >> >>
> >> >>
> >> >> --
> >> >> Regards
> >> >> Jack
> >> >
> >> >
> >> >
> >> > --
> >> > LG
> >> >
> >>
> >>
> >>
> >> --
> >> Regards
> >> Jack
> >
> >
> >
> > --
> > LG
> >
>
>
>
> --
> Regards
> Jack
>
--
LG
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