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      1 /*
      2  * Copyright 2010, The Android Open Source Project
      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  *  * Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  *  * 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 THE COPYRIGHT HOLDERS ``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 THE COPYRIGHT OWNER 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 #ifndef JavaStringV8_h
     27 #define JavaStringV8_h
     28 
     29 #include "JNIUtility.h"
     30 
     31 #include <wtf/text/CString.h>
     32 #include <wtf/text/WTFString.h>
     33 
     34 
     35 namespace JSC {
     36 
     37 namespace Bindings {
     38 
     39 class JavaStringImpl {
     40 public:
     41     void init() {}
     42 
     43     void init(JNIEnv* env, jstring string)
     44     {
     45         int size = env->GetStringLength(string);
     46         const jchar* jChars = getUCharactersFromJStringInEnv(env, string);
     47         m_impl = StringImpl::create(jChars, size);
     48         releaseUCharactersForJStringInEnv(env, string, jChars);
     49     }
     50 
     51     const char* utf8() const
     52     {
     53         if (!m_utf8String.data())
     54             m_utf8String = String(m_impl).utf8();
     55         return m_utf8String.data();
     56     }
     57     int length() const { return m_utf8String.length(); }
     58     StringImpl* impl() const { return m_impl.get(); }
     59 
     60 private:
     61     RefPtr<StringImpl> m_impl;
     62     mutable CString m_utf8String;
     63 };
     64 
     65 } // namespace Bindings
     66 
     67 } // namespace JSC
     68 
     69 #endif // JavaStringV8_h
     70