src/Filesystem/JSFilestream.h

   1 //
   2 // Tizen Web Device API
   3 // Copyright (c) 2012 Samsung Electronics Co., Ltd.
   4 //
   5 // Licensed under the Apache License, Version 2.0 (the License);
   6 // you may not use this file except in compliance with the License.
   7 // You may obtain a copy of the License at
   8 //
   9 // http://www.apache.org/licenses/LICENSE-2.0
  10 //
  11 // Unless required by applicable law or agreed to in writing, software
  12 // distributed under the License is distributed on an "AS IS" BASIS,
  13 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14 // See the License for the specific language governing permissions and
  15 // limitations under the License.
  16 //
  17
  18
  19 #ifndef TIZENAPIS_TIZEN_JSFILESTREAM_H_
  20 #define TIZENAPIS_TIZEN_JSFILESTREAM_H_
  21
  22 #include <JavaScriptCore/JavaScript.h>
  23 #include <CommonsJavaScript/PrivateObject.h>
  24 #include <Security.h>
  25 #include "IStream.h"
  26
  27 namespace DeviceAPI {
  28 namespace Filesystem {
  29
  30
  31 class JSFilestream
  32 {
  33 public:
  34         typedef WrtDeviceApis::CommonsJavaScript::PrivateObjectT<IStreamPtr>::Type PrivateObjectSecurity;
  35
  36         class PrivateObject :
  37                 public DeviceAPI::Common::SecurityAccessor,
  38                 public PrivateObjectSecurity
  39         {
  40         public :
  41                 PrivateObject (JSContextRef context, IStreamPtr stream) :
  42                         DeviceAPI::Common::SecurityAccessor(),
  43                         PrivateObjectSecurity(context, stream)
  44                 {
  45                 }
  46
  47                 virtual ~PrivateObject()
  48                 {
  49                 }
  50         };
  51
  52 public:
  53         static const JSClassDefinition* getClassInfo();
  54
  55         static const JSClassRef getClassRef();
  56
  57 private:
  58         /**
  59         * The callback invoked when an object is first created.
  60         */
  61         static void initialize(JSContextRef context,
  62                 JSObjectRef object);
  63
  64         /**
  65         * The callback invoked when an object is finalized.
  66         */
  67         static void finalize(JSObjectRef object);
  68
  69         /**
  70         * The callback invoked when getting a property's value.
  71         */
  72         static JSValueRef getProperty(JSContextRef context,
  73                 JSObjectRef object,
  74                 JSStringRef propertyName,
  75                 JSValueRef* exception);
  76
  77         /**
  78         * The callback invoked when setting a property's value.
  79         */
  80         static bool setProperty(JSContextRef context,
  81                 JSObjectRef object,
  82                 JSStringRef propertyName,
  83                 JSValueRef value,
  84                 JSValueRef* exception);
  85
  86         /**
  87         * The callback invoked when collecting the names of an object's properties.
  88         */
  89         static void getPropertyNames(JSContextRef context,
  90                 JSObjectRef object,
  91                 JSPropertyNameAccumulatorRef propertyNames);
  92
  93         /**
  94         * The callback invoked when an object is used as the target of an 'instanceof' expression.
  95         */
  96         static bool hasInstance(JSContextRef context,
  97                 JSObjectRef constructor,
  98                 JSValueRef possibleInstance,
  99                 JSValueRef* exception);
 100
 101         /**
 102         * Closes this FileStream.
 103         */
 104         static JSValueRef close(JSContextRef context,
 105                 JSObjectRef object,
 106                 JSObjectRef thisObject,
 107                 size_t argumentCount,
 108                 const JSValueRef arguments[],
 109                 JSValueRef* exception);
 110
 111         /**
 112         * Reads the specified number of characters from this FileStream.
 113         */
 114         static JSValueRef read(JSContextRef context,
 115                 JSObjectRef object,
 116                 JSObjectRef thisObject,
 117                 size_t argumentCount,
 118                 const JSValueRef arguments[],
 119                 JSValueRef* exception);
 120
 121         /**
 122         * Reads the specified number of bytes from this FileStream.
 123         */
 124         static JSValueRef readBytes(JSContextRef context,
 125                 JSObjectRef object,
 126                 JSObjectRef thisObject,
 127                 size_t argumentCount,
 128                 const JSValueRef arguments[],
 129                 JSValueRef* exception);
 130
 131         /**
 132         * Reads the specified number of bytes from this FileStream, encoding the result in base64.
 133         */
 134         static JSValueRef readBase64(JSContextRef context,
 135                 JSObjectRef object,
 136                 JSObjectRef thisObject,
 137                 size_t argumentCount,
 138                 const JSValueRef arguments[],
 139                 JSValueRef* exception);
 140
 141         /**
 142         * Writes the specified DOMString to this FileStream.
 143         */
 144         static JSValueRef write(JSContextRef context,
 145                 JSObjectRef object,
 146                 JSObjectRef thisObject,
 147                 size_t argumentCount,
 148                 const JSValueRef arguments[],
 149                 JSValueRef* exception);
 150
 151         /**
 152         * Writes the specified bytes to this FileStream.
 153         */
 154         static JSValueRef writeBytes(JSContextRef context,
 155                 JSObjectRef object,
 156                 JSObjectRef thisObject,
 157                 size_t argumentCount,
 158                 const JSValueRef arguments[],
 159                 JSValueRef* exception);
 160
 161         /**
 162         * Converts the specified base64 DOMString to bytes and writes the result to this FileStream.
 163         */
 164         static JSValueRef writeBase64(JSContextRef context,
 165                 JSObjectRef object,
 166                 JSObjectRef thisObject,
 167                 size_t argumentCount,
 168                 const JSValueRef arguments[],
 169                 JSValueRef* exception);
 170
 171         /**
 172         * This structure describes a statically declared function property.
 173         */
 174         static JSStaticFunction m_functions[];
 175
 176         /**
 177         * This structure describes a statically declared value property.
 178         */
 179         static JSStaticValue m_properties[];
 180
 181         /**
 182         * This structure contains properties and callbacks that define a type of object.
 183         */
 184         static JSClassDefinition m_classInfo;
 185
 186         static JSClassRef m_classRef;
 187 };
 188 }
 189 }
 190
 191 #endif