dom/base/nsJSUtils.h

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  37
  38 #ifndef nsJSUtils_h__
  39 #define nsJSUtils_h__
  40
  41 /**
  42  * This is not a generated file. It contains common utility functions
  43  * invoked from the JavaScript code generated from IDL interfaces.
  44  * The goal of the utility functions is to cut down on the size of
  45  * the generated code itself.
  46  */
  47
  48 #include "nsISupports.h"
  49 #include "jsapi.h"
  50 #include "nsString.h"
  51
  52 class nsIDOMEventListener;
  53 class nsIScriptContext;
  54 class nsIScriptGlobalObject;
  55 class nsIPrincipal;
  56
  57 class nsJSUtils
  58 {
  59 public:
  60   static JSBool GetCallingLocation(JSContext* aContext, const char* *aFilename,
  61                                    PRUint32* aLineno, nsIPrincipal* aPrincipal);
  62
  63   static nsIScriptGlobalObject *GetStaticScriptGlobal(JSContext* aContext,
  64                                                       JSObject* aObj);
  65
  66   static nsIScriptContext *GetStaticScriptContext(JSContext* aContext,
  67                                                   JSObject* aObj);
  68
  69   static nsIScriptGlobalObject *GetDynamicScriptGlobal(JSContext *aContext);
  70
  71   static nsIScriptContext *GetDynamicScriptContext(JSContext *aContext);
  72 };
  73
  74
  75 class nsDependentJSString : public nsDependentString
  76 {
  77 public:
  78   explicit nsDependentJSString(jsval v)
  79     : nsDependentString((PRUnichar *)::JS_GetStringChars(JSVAL_TO_STRING(v)),
  80                         ::JS_GetStringLength(JSVAL_TO_STRING(v)))
  81   {
  82   }
  83
  84   explicit nsDependentJSString(JSString *str)
  85     : nsDependentString((PRUnichar *)::JS_GetStringChars(str), ::JS_GetStringLength(str))
  86   {
  87   }
  88
  89   ~nsDependentJSString()
  90   {
  91   }
  92 };
  93
  94 #endif /* nsJSUtils_h__ */