bindings/jni/jni_objc.mm

   1 /*
   2  * Copyright (C) 2004 Apple Computer, Inc.  All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  * 1. Redistributions of source code must retain the above copyright
   8  *    notice, this list of conditions and the following disclaimer.
   9  * 2. Redistributions in binary form must reproduce the above copyright
  10  *    notice, this list of conditions and the following disclaimer in the
  11  *    documentation and/or other materials provided with the distribution.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
  14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
  17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24  */
  25
  26 #include "config.h"
  27
  28 #if ENABLE(JAVA_BINDINGS)
  29
  30 #import <Foundation/Foundation.h>
  31 #import <JavaScriptCore/jni_utility.h>
  32 #import <JavaScriptCore/objc_utility.h>
  33
  34 using namespace KJS::Bindings;
  35
  36 @interface NSObject (WebScriptingPrivate)
  37 - (jvalue)webPlugInCallJava:(jobject)object method:(jmethodID)method returnType:(JNIType)returnType arguments:(jvalue*)args;
  38 - (jvalue)webPlugInCallJava:(jobject)object
  39                    isStatic:(BOOL)isStatic
  40                  returnType:(JNIType)returnType
  41                      method:(jmethodID)method
  42                   arguments:(jvalue*)args
  43                  callingURL:(NSURL *)url
  44        exceptionDescription:(NSString **)exceptionString;
  45 @end
  46
  47 bool KJS::Bindings::dispatchJNICall (const void *targetAppletView, jobject obj, bool isStatic, JNIType returnType, jmethodID methodID, jvalue *args, jvalue &result, const char*, JSValue *&exceptionDescription)
  48 {
  49     id view = (id)targetAppletView;
  50
  51     // As array_type is not known by the Mac JVM, change it to a compatible type.
  52     if (returnType == array_type)
  53         returnType = object_type;
  54
  55     if ([view respondsToSelector:@selector(webPlugInCallJava:isStatic:returnType:method:arguments:callingURL:exceptionDescription:)]) {
  56         NSString *_exceptionDescription = 0;
  57
  58         // Passing nil as the calling URL will cause the Java plugin to use the URL
  59         // of the page that contains the applet. The execution restrictions
  60         // implemented in WebCore will guarantee that only appropriate JavaScript
  61         // can reference the applet.
  62         {
  63            JSLock::DropAllLocks dropAllLocks;
  64             result = [view webPlugInCallJava:obj isStatic:isStatic returnType:returnType method:methodID arguments:args callingURL:nil exceptionDescription:&_exceptionDescription];
  65         }
  66
  67         if (_exceptionDescription != 0) {
  68             exceptionDescription = convertNSStringToString(_exceptionDescription);
  69         }
  70         return true;
  71     }
  72     else if ([view respondsToSelector:@selector(webPlugInCallJava:method:returnType:arguments:)]) {
  73        JSLock::DropAllLocks dropAllLocks;
  74         result = [view webPlugInCallJava:obj method:methodID returnType:returnType arguments:args];
  75         return true;
  76     }
  77
  78     bzero (&result, sizeof(jvalue));
  79     return false;
  80 }
  81
  82 #endif // ENABLE(JAVA_BINDINGS)