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JSObject.call(method, ARGS) with Safari

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  JSObject.call(method, ARGS) with Safari "Richard Maher" <maher_rj@hotspamnotmail.com> - 2012-04-21 18:12 +0800
    Re: JSObject.call(method, ARGS) with Safari "Richard Maher" <maher_rj@hotspamnotmail.com> - 2012-04-21 18:15 +0800
      Re: JSObject.call(method, ARGS) with Safari Lew <noone@lewscanon.com> - 2012-04-21 04:45 -0700
        Re: JSObject.call(method, ARGS) with Safari Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2012-04-21 09:57 -0300
          Re: JSObject.call(method, ARGS) with Safari "Richard Maher" <maher_rj@hotspamnotmail.com> - 2012-04-21 21:30 +0800
            Re: JSObject.call(method, ARGS) with Safari Lew <noone@lewscanon.com> - 2012-04-21 13:07 -0700
          Re: JSObject.call(method, ARGS) with Safari Lew <noone@lewscanon.com> - 2012-04-21 13:00 -0700
    Re: JSObject.call(method, ARGS) with Safari Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-04-21 15:48 -0700
      Re: JSObject.call(method, ARGS) with Safari "Richard Maher" <maher_rj@hotspamnotmail.com> - 2012-04-22 12:46 +0800
        Re: JSObject.call(method, ARGS) with Safari "Richard Maher" <maher_rj@hotspamnotmail.com> - 2012-04-22 15:07 +0800
          Re: JSObject.call(method, ARGS) with Safari Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2012-04-22 21:17 -0300
            Re: JSObject.call(method, ARGS) with Safari Richard Maher <maherrj@googlemail.com> - 2012-04-22 23:40 -0700
              Re: JSObject.call(method, ARGS) with Safari Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2012-04-23 20:40 -0300

#13736 — JSObject.call(method, ARGS) with Safari

Hi.

Has anyone been able to pass the ARGS parameter to JSObject's "call" method 
*and* pass arguments via the "args" parameter? An example of your 
work-around perhaps?

I'm having no trouble calling methods on all sorts of complex Javascript 
objects but when it comes to passing the arguments array I keep getting 
nullpointerexception :-(

Firefox, IE, Chrome, and Opera are all onboard and ok.

Cheers Richard Maher 

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#13737

"Richard Maher" <maher_rj@hotspamnotmail.com> wrote in message 
news:jmu16i$ij2$1@speranza.aioe.org...
> Hi.
>
> Has anyone been able to pass the ARGS parameter to JSObject's "call" 
> method *and* pass arguments via the "args" parameter? An example of your 
> work-around perhaps?
>
> I'm having no trouble calling methods on all sorts of complex Javascript 
> objects but when it comes to passing the arguments array I keep getting 
> nullpointerexception :-(
>
> Firefox, IE, Chrome, and Opera are all onboard and ok.
>
> Cheers Richard Maher
>

Don't know if this is relevant: -

JSValueRef JSObjectCallAsFunction(JSContextRef ctx, JSObjectRef object, 
JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], 
JSValueRef* exception)
{


    JSValueRef result = toRef(jsObject->call(exec, jsThisObject, argList)); 
// returns NULL if object->implementsCall() is false

. . . and if so, how one specifies "implementsCall()" as "true"

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#13742

Richard Maher wrote:
>> Has anyone been able to pass the ARGS parameter to JSObject's "call"
>> method *and* pass arguments via the "args" parameter? An example of your
>> work-around perhaps?
>>
>> I'm having no trouble calling methods on all sorts of complex Javascript
>> objects but when it comes to passing the arguments array I keep getting
>> nullpointerexception [sic] :-(

Maybe if you showed us any code, or better yet, an SSCCE, we could help.

All I can say at this point is that you're passing it wrong.

>> Firefox, IE, Chrome, and Opera are all onboard and ok.

> Don't know if this is relevant: -
>
> JSValueRef JSObjectCallAsFunction(JSContextRef ctx, JSObjectRef object,
> JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[],
> JSValueRef* exception)
> {
>
>
>      JSValueRef result = toRef(jsObject->call(exec, jsThisObject, argList));
> // returns NULL if object->implementsCall() is false
>
> . . . and if so, how one specifies "implementsCall()" as "true"

That isn't Java code.

-- 
Lew
Honi soit qui mal y pense.
http://upload.wikimedia.org/wikipedia/commons/c/cf/Friz.jpg

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#13744

On 12-04-21 08:45 AM, Lew wrote:
> Richard Maher wrote:
>>> Has anyone been able to pass the ARGS parameter to JSObject's "call"
>>> method *and* pass arguments via the "args" parameter? An example of your
>>> work-around perhaps?
>>>
>>> I'm having no trouble calling methods on all sorts of complex Javascript
>>> objects but when it comes to passing the arguments array I keep getting
>>> nullpointerexception [sic] :-(
> 
> Maybe if you showed us any code, or better yet, an SSCCE, we could help.
> 
> All I can say at this point is that you're passing it wrong.
> 
>>> Firefox, IE, Chrome, and Opera are all onboard and ok.
> 
>> Don't know if this is relevant: -
>>
>> JSValueRef JSObjectCallAsFunction(JSContextRef ctx, JSObjectRef object,
>> JSObjectRef thisObject, size_t argumentCount, const JSValueRef
>> arguments[],
>> JSValueRef* exception)
>> {
>>
>>
>>      JSValueRef result = toRef(jsObject->call(exec, jsThisObject,
>> argList));
>> // returns NULL if object->implementsCall() is false
>>
>> . . . and if so, how one specifies "implementsCall()" as "true"
> 
> That isn't Java code.
> 
True, it's not, it's JavascriptCore. So this is a multi-language problem
with both Java (netscape.javascript.JSObject) and JavaScript being
involved. I think we can handle that.

I spent a month earlier this year doing an integration for a customer in
an Oracle Forms environment that involved Java, Oracle Forms PL/SQL, and
some JavaScript. Much of last year was Java EE web apps where Java, XML,
XSLT, XHTML, CSS and SQL figured. Right now I am working ESB
integrations where Java is important but less than 50 percent.

Most of us spend quality time doing hybrid work. Sometimes a problem is
a one-language problem but often it's not. We can't get too picky about
what we'll look at and what we won't. As long as Java is involved to
some extent I think it's worth a first look.

I agree that an SSCCE is called for in any case.

AHS
-- 
A fly was very close to being called a "land," cause that's what they do
half the time.
-- Mitch Hedberg

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#13745

"Arved Sandstrom" <asandstrom3minus1@eastlink.ca> wrote in message 
news:49ykr.15811$FQ1.5673@newsfe12.iad...
> On 12-04-21 08:45 AM, Lew wrote:
>
> I agree that an SSCCE is called for in any case.
>

Thanks for the replies. I'll cut it down to just the jsobject.call(m, ARGS) 
test tomorrow, but for now: -

import java.applet.Applet;
import netscape.javascript.JSObject;
import netscape.javascript.JSException;

    public class JavaJSTest extends Applet {

        JSObject              laundry;
        Object                rinseArgs[]   = new Object[1];

        public synchronized void init() {

            System.out.println("Starting Tests. . .");

            JSObject window = JSObject.getWindow(this);

            final String createLaundry =
                  "(function(){" +
                      "function Laundry(){" +
                          "this.launder = function(JSObject){" +
                                            "alert('In Laundry');" +
                                            "return JSObject;}}" +
                      "return new Laundry();" +
                      "})();";

            laundry = (JSObject)window.eval(createLaundry);

            // Test function calls
            String str = (String) window.eval("getString();");
            if (!str.equals("Hello, world!")) {
                throw new RuntimeException(); // test failed
            }
            Number num = (Number) window.eval("getNumber()");
            if (num.intValue() != 5) {
                throw new RuntimeException(); // test failed
            }
            // Test field access
            JSObject res = (JSObject) window.eval("new cities();");
            if (!((String) res.getMember("b")).equals("Belgrade")) {
                throw new RuntimeException(); // test failed
            }
            res.setMember("b", "Belfast");
            if (!res.getMember("b").equals("Belfast")) {
                throw new RuntimeException(); // test failed
            }
            // Test CALL
            Boolean ans = (Boolean)res.call("d", null);
            System.out.println("ans is " + ans.booleanValue());

            // Test CALL with param
            rinseArgs[0] = new String("A param");
            Boolean pans = (Boolean)res.call("e", rinseArgs);
            System.out.println("param ans is " + pans.booleanValue());

            // Test array access
            res = (JSObject) window.eval("getTestArray();");
            if (!((String) res.getSlot(0)).equals("foo") ||
                !((String) res.getSlot(1)).equals("bar")) {
                throw new RuntimeException(); // test failed
            }
            res.setSlot(1, "baz");
            if (!((String) res.getSlot(1)).equals("baz")) {
                throw new RuntimeException(); // test failed
            }
            res.setSlot(2, "qux"); // Define new array element
            if (!((String) res.getSlot(2)).equals("qux")) {
                throw new RuntimeException(); // test failed
            }
            res.removeMember("b");
            try {
                res.getMember("b");
//                throw new RuntimeException(); // test failed
                System.out.println("This browser does not support 
removeMember");  // test failed
            } catch (JSException e) {
                // Member should not be present any more
            }

            System.out.println(". . .Tests complete");
        }

        public void hello() {
            System.out.println("Hello");
        }

        public boolean testCall(JSObject blob) {
            System.out.println("In method - testCall()");

            JSObject              cleanBuf;
            boolean               retVal        = false;

            try {
                rinseArgs[0] = blob;
                System.out.println("before launder");
                try {
                    cleanBuf = (JSObject)laundry.call("launder", rinseArgs);
                }
                catch (Exception e) {
                    throw e;
                }
                System.out.println("after launder");
//                System.out.println("ans is " + abc.booleanValue());

                System.out.println("blob.call()");
                Boolean resp = (Boolean)cleanBuf.call("e",null);
                System.out.println("Setting retVal");
                retVal = resp.booleanValue();
                } catch (JSException ex) {
                    Exception ex2 = (Exception)ex.getWrappedException();
                    if(ex2 != null) {
                        System.out.println(ex2.getClass().getName() + " " + 
ex2.getMessage());
                    } else {
                        System.out.println(ex.getClass().getName() + " " + 
ex.getMessage());
                    }
                } catch (Exception ex) {
                    System.out.println(ex.getClass().getName() + " " + 
ex.getMessage());
                }
            return retVal;
        }

    }


And the HTML: _

<html>
<head>
    <script language="javascript">
    var app;

    function load() {
      var objectTag = "<object ";

      if (/Internet Explorer/.test(navigator.appName)) {
        objectTag = objectTag +
            'classid="clsid:8AD9C840-044E-11D1-B3E9-00805F499D93" ';
      } else {
        objectTag = objectTag +
            'type="application/x-java-applet" ';
      }

      objectTag = objectTag +
          'width= "0" height= "0" id="app">' +
          '<param name="codebase"        value="http://127.0.0.1">' +
          '<param name="code"            value="JavaJSTest">' +
          '<param name="java_version"    value="1.6+">' +
          '<param name="mayscript"       value="true">' +
          '<param name="scriptable"      value="true">' +
     '</object>';

      var appletDiv              = document.createElement("div");
      appletDiv.innerHTML        = objectTag;

      try {
        document.body.appendChild(appletDiv);
        chanG = document.getElementById("app");
      }
      catch(err) {
          alert("Unable to append applet: -\n" +
              (err.description||err.message));
          chanG = null;
      };

      if (chanG == null) {
        throw new Error("Was unable to initialize the applet");
      };

      var x = new cities();
      var y = x.e();
      alert("X = "+y);
    }

    // Return a string value to Java
    function getString() {
       return "Hello, world!";
    }

    function getNumber() {
       return 5;
    }

    // Make an object with city names and an index letter.
    function cities() {
       var msg = "Good Bye";
       this.a = "Athens";
       this.b = "Belgrade";
       this.c = "Cairo";
//       this.e = function(){alert(msg); return true;};
//       this.e = function(){if (window.console) {console.log("Message is " 
+ msg)};return true;};
//       this.e = function(){throw("A Wobbly");return true;};
     }

     cities.prototype = {
       d : function(){alert("hello"); return true;}
      ,e : function(){alert("good-Bye"); return true;}
      ,f : function(param){alert("Param = " + param); return true;}
     };

     function getTestArray() {
        return [ "foo", "bar" ];
     }

     function doIt() {
      var list = new cities();
      var reply = chanG.testCall(list);
      alert("Reply = "+reply);
     }

    </script>
</head>
<body onload="load();">

STUFF

<input type="Button" id="btn1" value="HitMe" onclick="doIt();"/>

</body>
</html>

Thanks agin

Cheers Richard Maher 

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#13753

Richard Maher wrote:
> Arved Sandstrom wrote ..
>> Lew wrote:
>>> ... SSCCE ... [context restored]
>> I agree that an SSCCE is called for in any case.
>>
>
> Thanks for the replies. I'll cut it down to just the jsobject.call(m, ARGS)
> test tomorrow, but for now: -

Thanks for this fragment of your problem. The missing fragment is what went 
wrong. Please copy and paste the actual output or errors and describe what you 
expect instead. You haven't even told us what the error is!

> import java.applet.Applet;
> import netscape.javascript.JSObject;
> import netscape.javascript.JSException;
>
>      public class JavaJSTest extends Applet {
>
>          JSObject              laundry;
>          Object                rinseArgs[]   = new Object[1];
>
>          public synchronized void init() {
>
>              System.out.println("Starting Tests. . .");
>
>              JSObject window = JSObject.getWindow(this);
>
>              final String createLaundry =
>                    "(function(){" +
>                        "function Laundry(){" +
>                            "this.launder = function(JSObject){" +
>                                              "alert('In Laundry');" +
>                                              "return JSObject;}}" +
>                        "return new Laundry();" +
>                        "})();";
>
>              laundry = (JSObject)window.eval(createLaundry);
>
>              // Test function calls
>              String str = (String) window.eval("getString();");
>              if (!str.equals("Hello, world!")) {
>                  throw new RuntimeException(); // test failed
>              }
>              Number num = (Number) window.eval("getNumber()");
>              if (num.intValue() != 5) {
>                  throw new RuntimeException(); // test failed
>              }
>              // Test field access
>              JSObject res = (JSObject) window.eval("new cities();");
>              if (!((String) res.getMember("b")).equals("Belgrade")) {
>                  throw new RuntimeException(); // test failed
>              }
>              res.setMember("b", "Belfast");
>              if (!res.getMember("b").equals("Belfast")) {
>                  throw new RuntimeException(); // test failed
>              }
>              // Test CALL
>              Boolean ans = (Boolean)res.call("d", null);

Could this possibly be where the error occurs?

>              System.out.println("ans is " + ans.booleanValue());

Really, 'System.out.println()'?

Check out java.util.logger or log4j.

>              // Test CALL with param
>              rinseArgs[0] = new String("A param");
>              Boolean pans = (Boolean)res.call("e", rinseArgs);
>              System.out.println("param ans is " + pans.booleanValue());
>
>              // Test array access
>              res = (JSObject) window.eval("getTestArray();");
>              if (!((String) res.getSlot(0)).equals("foo") ||
>                  !((String) res.getSlot(1)).equals("bar")) {
>                  throw new RuntimeException(); // test failed
>              }

Could this possibly be where the error occurs?

>              res.setSlot(1, "baz");
>              if (!((String) res.getSlot(1)).equals("baz")) {
>                  throw new RuntimeException(); // test failed
>              }
>              res.setSlot(2, "qux"); // Define new array element
>              if (!((String) res.getSlot(2)).equals("qux")) {
>                  throw new RuntimeException(); // test failed
>              }
>              res.removeMember("b");
>              try {
>                  res.getMember("b");
> //                throw new RuntimeException(); // test failed

For this sort of thing, 'IllegalStateException' is a good match.

>                  System.out.println("This browser does not support
> removeMember");  // test failed
>              } catch (JSException e) {
>                  // Member should not be present any more
>              }
>
>              System.out.println(". . .Tests complete");
>          }
>
>          public void hello() {
>              System.out.println("Hello");
>          }
>
>          public boolean testCall(JSObject blob) {
>              System.out.println("In method - testCall()");
>
>              JSObject              cleanBuf;
>              boolean               retVal        = false;
>
>              try {
>                  rinseArgs[0] = blob;
>                  System.out.println("before launder");
>                  try {
>                      cleanBuf = (JSObject)laundry.call("launder", rinseArgs);
>                  }
>                  catch (Exception e) {
>                      throw e;
>                  }
>                  System.out.println("after launder");
> //                System.out.println("ans is " + abc.booleanValue());
>
>                  System.out.println("blob.call()");
>                  Boolean resp = (Boolean)cleanBuf.call("e",null);

Could this possibly be where the error occurs?

>                  System.out.println("Setting retVal");
>                  retVal = resp.booleanValue();
>                  } catch (JSException ex) {
>                      Exception ex2 = (Exception)ex.getWrappedException();
>                      if(ex2 != null) {
>                          System.out.println(ex2.getClass().getName() + " " +
> ex2.getMessage());
>                      } else {
>                          System.out.println(ex.getClass().getName() + " " +
> ex.getMessage());
>                      }
>                  } catch (Exception ex) {
>                      System.out.println(ex.getClass().getName() + " " +
> ex.getMessage());
>                  }
>              return retVal;
>          }
>
>      }
>
>
> And the HTML: _
>
> <html>
> <head>
>      <script language="javascript">
>      var app;
>
>      function load() {
>        var objectTag = "<object ";
>
>        if (/Internet Explorer/.test(navigator.appName)) {
>          objectTag = objectTag +
>              'classid="clsid:8AD9C840-044E-11D1-B3E9-00805F499D93" ';
>        } else {
>          objectTag = objectTag +
>              'type="application/x-java-applet" ';
>        }
>
>        objectTag = objectTag +
>            'width= "0" height= "0" id="app">' +
>            '<param name="codebase"        value="http://127.0.0.1">' +
>            '<param name="code"            value="JavaJSTest">' +
>            '<param name="java_version"    value="1.6+">' +
>            '<param name="mayscript"       value="true">' +
>            '<param name="scriptable"      value="true">' +
>       '</object>';
>
>        var appletDiv              = document.createElement("div");
>        appletDiv.innerHTML        = objectTag;
>
>        try {
>          document.body.appendChild(appletDiv);
>          chanG = document.getElementById("app");
>        }
>        catch(err) {
>            alert("Unable to append applet: -\n" +
>                (err.description||err.message));
>            chanG = null;
>        };
>
>        if (chanG == null) {
>          throw new Error("Was unable to initialize the applet");
>        };
>
>        var x = new cities();
>        var y = x.e();
>        alert("X = "+y);
>      }
>
>      // Return a string value to Java
>      function getString() {
>         return "Hello, world!";
>      }
>
>      function getNumber() {
>         return 5;
>      }
>
>      // Make an object with city names and an index letter.
>      function cities() {
>         var msg = "Good Bye";
>         this.a = "Athens";
>         this.b = "Belgrade";
>         this.c = "Cairo";
> //       this.e = function(){alert(msg); return true;};
> //       this.e = function(){if (window.console) {console.log("Message is "
> + msg)};return true;};
> //       this.e = function(){throw("A Wobbly");return true;};
>       }
>
>       cities.prototype = {
>         d : function(){alert("hello"); return true;}
>        ,e : function(){alert("good-Bye"); return true;}
>        ,f : function(param){alert("Param = " + param); return true;}
>       };
>
>       function getTestArray() {
>          return [ "foo", "bar" ];
>       }
>
>       function doIt() {
>        var list = new cities();
>        var reply = chanG.testCall(list);
>        alert("Reply = "+reply);
>       }
>
>      </script>
> </head>
> <body onload="load();">
>
> STUFF
>
> <input type="Button" id="btn1" value="HitMe" onclick="doIt();"/>
>
> </body>
> </html>

-- 
Lew
Honi soit qui mal y pense.
http://upload.wikimedia.org/wikipedia/commons/c/cf/Friz.jpg

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#13752

Arved Sandstrom wrote:
> Lew wrote:
>> Richard Maher wrote:
>>>> Has anyone been able to pass the ARGS parameter to JSObject's "call"
>>>> method *and* pass arguments via the "args" parameter? An example of your
>>>> work-around perhaps?
>>>>
>>>> I'm having no trouble calling methods on all sorts of complex Javascript
>>>> objects but when it comes to passing the arguments array I keep getting
>>>> nullpointerexception [sic] :-(
>>
>> Maybe if you showed us any code, or better yet, an SSCCE, we could help.
>>
>> All I can say at this point is that you're passing it wrong.
>>
>>>> Firefox, IE, Chrome, and Opera are all onboard and ok.
>>
>>> Don't know if this is relevant: -

Nor do we, and how the heck could we with the paucity of information you provided?

>>> JSValueRef JSObjectCallAsFunction(JSContextRef ctx, JSObjectRef object,
>>> JSObjectRef thisObject, size_t argumentCount, const JSValueRef
>>> arguments[],
>>> JSValueRef* exception)
>>> {
>>>
>>>
>>>       JSValueRef result = toRef(jsObject->call(exec, jsThisObject,
>>> argList));
>>> // returns NULL if object->implementsCall() is false
>>>
>>> . . . and if so, how one specifies "implementsCall()" as "true"
>>
>> That isn't Java code.
>>
> True, it's not, it's JavascriptCore. So this is a multi-language problem
> with both Java (netscape.javascript.JSObject) and JavaScript being
> involved. I think we can handle that.
>
> I spent a month earlier this year doing an integration for a customer in
> an Oracle Forms environment that involved Java, Oracle Forms PL/SQL, and
> some JavaScript. Much of last year was Java EE web apps where Java, XML,
> XSLT, XHTML, CSS and SQL figured. Right now I am working ESB
> integrations where Java is important but less than 50 percent.
>
> Most of us spend quality time doing hybrid work. Sometimes a problem is
> a one-language problem but often it's not. We can't get too picky about
> what we'll look at and what we won't. As long as Java is involved to
> some extent I think it's worth a first look.
>
> I agree that an SSCCE is called for in any case.

Since the OP's problem stems from their Java code, the fact that what they 
published was not is relevant.

At no point did I suggest that the question was inappropriate for this forum.

The OP has been around this newsgroup for far too long to be ignorant of the 
smart ways to ask questions here.

-- 
Lew
Honi soit qui mal y pense.
http://upload.wikimedia.org/wikipedia/commons/c/cf/Friz.jpg

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#13768

On 4/21/12 3:12 AM, Richard Maher wrote:
> Hi.
>
> Has anyone been able to pass the ARGS parameter to JSObject's "call" method
> *and* pass arguments via the "args" parameter? An example of your
> work-around perhaps?
>
> I'm having no trouble calling methods on all sorts of complex Javascript
> objects but when it comes to passing the arguments array I keep getting
> nullpointerexception :-(
>
> Firefox, IE, Chrome, and Opera are all onboard and ok.
>
> Cheers Richard Maher
Not sure if this helps, but in the past I've had to do some hacky 
work-arounds to work with JSObject.

Check out: 
<http://virtualinfinity.net/wordpress/tools/2008/10/11/javascript-and-java-applets/>


Hope this helps,
Daniel.

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#13780

"Daniel Pitts" <newsgroup.nospam@virtualinfinity.net> wrote in message 
news:YOGkr.11325$DB1.340@newsfe03.iad...
> On 4/21/12 3:12 AM, Richard Maher wrote:
>> Hi.
>>
>> Has anyone been able to pass the ARGS parameter to JSObject's "call" 
>> method
>> *and* pass arguments via the "args" parameter? An example of your
>> work-around perhaps?
>>
>> I'm having no trouble calling methods on all sorts of complex Javascript
>> objects but when it comes to passing the arguments array I keep getting
>> nullpointerexception :-(
>>
>> Firefox, IE, Chrome, and Opera are all onboard and ok.
>>
>> Cheers Richard Maher
> Not sure if this helps, but in the past I've had to do some hacky 
> work-arounds to work with JSObject.
>
> Check out: 
> <http://virtualinfinity.net/wordpress/tools/2008/10/11/javascript-and-java-applets/>
>

Hi Daniel,

Thanks as always for your replies.
>
> Hope this helps,

It certainly helped a couple of years ago (with FireFox 2.n or 3.0?) when 
you first showed me your cunning solution. That was my first (well probably 
about 5th as is happens) port of call.

You may not recall, but that's when I first introduced the JS 
"Tier3Client.launder" function that just took a JSObject a a parameter and 
returned the same JSObject which was automagically fixed/rinsed. This worked 
well back in the day but now FF, IE, Chrome, and Opera (and JSObject) all 
seemed to have moved on and the "fix" was looking redundant - until Safari 
and its insistence on the "First Generation plug-in" :-(

The problem is my solution is not working with Safari and I think Safari has 
other issues. I used to getMember("Tier3Client") on the applet window and 
then call my "launder" on that. If you look at the code I posted just before 
you'll see that I was trying to be "clever" and use an anonymous JS function 
to return a launder function. As this could well have been an issue, I 
reverted to the tried and tested method but still no joy.

Anyway, I'll give your code/solution a go shortly but I'm not hopeful given 
that I can't even get a simple appletWindow.call("topLevelFunction", args) 
to do other than return "null". Without arguments is not a problem.

So in the meantime if anyone knows of an example JSObject.call("sayHello", 
WITHargs) that works in Safari can they please provide a pointer?

> Daniel.

Cheers Richard Maher

PS. NO *NOT bloody EVAL* - call, Call, CALL()! 

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#13782

"Richard Maher" <maher_rj@hotspamnotmail.com> wrote in message 
news:jn02en$5gp$1@speranza.aioe.org...
>
> "Daniel Pitts" <newsgroup.nospam@virtualinfinity.net> wrote in message 
> news:YOGkr.11325$DB1.340@newsfe03.iad...

>> Not sure if this helps, but in the past I've had to do some hacky 
>> work-arounds to work with JSObject.
>>
>> Check out: 
>> <http://virtualinfinity.net/wordpress/tools/2008/10/11/javascript-and-java-applets/>
>>
>
> Anyway, I'll give your code/solution a go shortly but I'm not hopeful 
> given that I can't even get a simple appletWindow.call("topLevelFunction", 
> args) to do other than return "null". Without arguments is not a problem.
>
> So in the meantime if anyone knows of an example JSObject.call("sayHello", 
> WITHargs) that works in Safari can they please provide a pointer?
>
>> Daniel.

As expected, still no joy and a nullpointer. (And now IE complains that you 
can't cast a String to JSObject)

Thanks anyway.

Anyone else done this on Safari?
>
Cheers Richard Maher
>
> PS. NO *NOT bloody EVAL* - call, Call, CALL()!
> 

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#13810

On 12-04-22 04:07 AM, Richard Maher wrote:
> "Richard Maher" <maher_rj@hotspamnotmail.com> wrote in message 
> news:jn02en$5gp$1@speranza.aioe.org...
>>
>> "Daniel Pitts" <newsgroup.nospam@virtualinfinity.net> wrote in message 
>> news:YOGkr.11325$DB1.340@newsfe03.iad...
> 
>>> Not sure if this helps, but in the past I've had to do some hacky 
>>> work-arounds to work with JSObject.
>>>
>>> Check out: 
>>> <http://virtualinfinity.net/wordpress/tools/2008/10/11/javascript-and-java-applets/>
>>>
>>
>> Anyway, I'll give your code/solution a go shortly but I'm not hopeful 
>> given that I can't even get a simple appletWindow.call("topLevelFunction", 
>> args) to do other than return "null". Without arguments is not a problem.
>>
>> So in the meantime if anyone knows of an example JSObject.call("sayHello", 
>> WITHargs) that works in Safari can they please provide a pointer?
>>
>>> Daniel.
> 
> As expected, still no joy and a nullpointer. (And now IE complains that you 
> can't cast a String to JSObject)
> 
> Thanks anyway.
> 
> Anyone else done this on Safari?
>>
> Cheers Richard Maher
>>
>> PS. NO *NOT bloody EVAL* - call, Call, CALL()!
>>

I don't usually deal with Java applets of any kind, but this was
interesting. I worked up a Swing JApplet and have a JavaScript function
an a JSP page.

Since you mentioned Safari I did Safari 5.1.2 on Mac OS X 10.6.8 with
Java Plug-in 1.6.0_31.

The applet has text fields to take 2 numbers, a result text field, and a
"submit" button. The JavaScript function is

function addNums(one,two) {
  return one+two;
}

and the important 2 lines of code in the applet are

JSObject win = JSObject.getWindow(this);
Object sum = win.call("addNums", new Object[] {num1, num2});

where 'num1' and 'num2' are java.lang.Doubles. So is 'sum'.

There is not anything more to it. It worked just fine.

AHS

-- 
A fly was very close to being called a "land," cause that's what they do
half the time.
-- Mitch Hedberg

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#13813

Hi Arved,

On Apr 23, 8:17 am, Arved Sandstrom <asandstrom3min...@eastlink.ca>
wrote:
> On 12-04-22 04:07 AM, Richard Maher wrote:
>

> Since you mentioned Safari I did Safari 5.1.2 on

>>> Mac OS X 10.6.8 with <<<<

Well there goes 3 days of my life I'll never get back :-( I guess some
would say I deserve it for not being a OS/X user. I should have
pointed out that I was running Safari of Windows XP but on 2nd
thoughts, who cares? I can't see many users choosing to browse with
Safari on Windows so, in the grand scheme of things it can stay broke.
(Shame to not be able to test there though).

. A couple of other observations on Safari Liveconnect support for
those following at home
1) removeMember is not support on WIN or OS/X (Either does Chrome for
that matter)
2) WIN Safari supports get/set Member but OS/X does not

> Java Plug-in 1.6.0_31.
>
> The applet has text fields to take 2 numbers, a result text field, and a
> "submit" button. The JavaScript function is
>
> function addNums(one,two) {
>   return one+two;
>
> }
>
> and the important 2 lines of code in the applet are
>
> JSObject win = JSObject.getWindow(this);
> Object sum = win.call("addNums", new Object[] {num1, num2});
>
> where 'num1' and 'num2' are java.lang.Doubles. So is 'sum'.
>
> There is not anything more to it. It worked just fine.

Yep, pretty wonderful and useful stuff eh?

Thanks for testing it for me.

>
> AHS
>

Cheers Richard Maher

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#13830

On 12-04-23 03:40 AM, Richard Maher wrote:
> Hi Arved,
> 
> On Apr 23, 8:17 am, Arved Sandstrom <asandstrom3min...@eastlink.ca>
> wrote:
>> On 12-04-22 04:07 AM, Richard Maher wrote:
>>
> 
>> Since you mentioned Safari I did Safari 5.1.2 on
> 
>>>> Mac OS X 10.6.8 with <<<<
> 
> Well there goes 3 days of my life I'll never get back :-( I guess some
> would say I deserve it for not being a OS/X user. I should have
> pointed out that I was running Safari of Windows XP but on 2nd
> thoughts, who cares? I can't see many users choosing to browse with
> Safari on Windows so, in the grand scheme of things it can stay broke.
> (Shame to not be able to test there though).
[ SNIP ]
> 
> Thanks for testing it for me.
>>
>> AHS
> 
> Cheers Richard Maher

I'm not one to resist a challenge, I tested the applet against Safari on
my Windows XP, and it worked also.

Safari 5.0.3, Windows XP, JDK 1.6.0_31 (and corresponding plugin).

FWIW my test environment is very spare. The JApplet itself is
uncomplicated, and the 2 lines I showed you are the only ones that talk
to JavaScript. The JavaScript is the function I showed, and it's the
only JavaScript in the page that contains the applet. And my applet tag
*is* an <applet> tag, not an <object> tag, with only the 'code' and
'archive' attributes. I'm not saying you want to, or can, simplify that
much (considering you want to support many browsers) but it's what
worked for me in Safari on both Mac OS X and Win XP for this scenario.

AHS
-- 
A fly was very close to being called a "land," cause that's what they do
half the time.
-- Mitch Hedberg

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