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| 1 // Copyright 2011, Google Inc. | |
| 2 // 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 are | |
| 6 // met: | |
| 7 // | |
| 8 // * Redistributions of source code must retain the above copyright | |
| 9 // notice, this list of conditions and the following disclaimer. | |
| 10 // * Redistributions in binary form must reproduce the above | |
| 11 // copyright notice, this list of conditions and the following disclaimer | |
| 12 // in the documentation and/or other materials provided with the | |
| 13 // distribution. | |
| 14 // * Neither the name of Google Inc. nor the names of its | |
| 15 // contributors may be used to endorse or promote products derived from | |
| 16 // this software without specific prior written permission. | |
| 17 // | |
| 18 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 19 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 20 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 21 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 22 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 23 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 24 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 25 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 26 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 27 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 29 | |
| 30 #ifndef DartUtilities_h | |
| 31 #define DartUtilities_h | |
| 32 | |
| 33 #include "MessagePort.h" | |
| 34 | |
| 35 #include <dart_api.h> | |
| 36 #include <wtf/HashMap.h> | |
| 37 #include <wtf/text/WTFString.h> | |
| 38 | |
| 39 namespace WebCore { | |
| 40 | |
| 41 class EventListener; | |
| 42 class EventTarget; | |
| 43 class Frame; | |
| 44 class ScriptArguments; | |
| 45 class ScriptCallStack; | |
| 46 class ScriptExecutionContext; | |
| 47 class SerializedScriptValue; | |
| 48 | |
| 49 typedef HashMap<void*, Dart_Handle> DartDOMMap; | |
| 50 | |
| 51 class DartUtilities { | |
| 52 public: | |
| 53 enum ConversionFlag { | |
| 54 ConvertNone = 0, | |
| 55 ConvertNullToEmptyString = 1 | |
| 56 }; | |
| 57 | |
| 58 static const char* domLibraryName; | |
| 59 | |
| 60 static PassRefPtr<StringImpl> toStringImpl(Dart_Handle, ConversionFlag flag,
Dart_Handle& exception); | |
| 61 // FIXME: we should get rid of this one in favour of toStringImpl. | |
| 62 static String dartStringToString(Dart_Handle object) | |
| 63 { | |
| 64 Dart_Handle exception = 0; | |
| 65 RefPtr<StringImpl> impl = toStringImpl(object, ConvertNone, exception); | |
| 66 ASSERT(!exception); | |
| 67 return String(impl.release()); | |
| 68 } | |
| 69 static Dart_Handle stringToDartString(const String&); | |
| 70 static Dart_Handle stringToDartString(const AtomicString&); | |
| 71 | |
| 72 static int64_t toInteger(Dart_Handle object, Dart_Handle& exception); | |
| 73 static int64_t toInteger(Dart_Handle object); | |
| 74 static double toDouble(Dart_Handle object, Dart_Handle& exception); | |
| 75 static double toDouble(Dart_Handle object); | |
| 76 static bool toBool(Dart_Handle object, Dart_Handle& exception); | |
| 77 static bool toBool(Dart_Handle object); | |
| 78 static PassRefPtr<EventListener> toEventListener(Dart_Handle object, Dart_Ha
ndle& exception); | |
| 79 static PassRefPtr<EventTarget> toEventTarget(Dart_Handle object, Dart_Handle
& exception); | |
| 80 static void toMessagePortArray(Dart_Handle object, MessagePortArray&, Dart_H
andle& exception); | |
| 81 | |
| 82 static PassRefPtr<SerializedScriptValue> toSerializedScriptValue(Dart_Handle
object, Dart_Handle& exception); | |
| 83 static Dart_Handle fromSerializedScriptValue(SerializedScriptValue*); | |
| 84 | |
| 85 static void registerIsolateContext(Dart_Isolate, ScriptExecutionContext*); | |
| 86 static ScriptExecutionContext* isolateContext(Dart_Isolate); | |
| 87 static void unregisterIsolateContext(Dart_Isolate); | |
| 88 static bool isFullDomIsolate(Dart_Isolate); | |
| 89 | |
| 90 static DOMWindow* domWindowForIsolate(Dart_Isolate); | |
| 91 static DOMWindow* domWindowForCurrentIsolate(); | |
| 92 | |
| 93 static Dart_Handle domLibraryForCurrentIsolate(); | |
| 94 static Dart_Handle pageLibraryForCurrentIsolate(); | |
| 95 | |
| 96 static DartDOMMap* domMapForIsolate(Dart_Isolate); | |
| 97 static DartDOMMap* domMapForCurrentIsolate(); | |
| 98 | |
| 99 static int* recursionForIsolate(Dart_Isolate); | |
| 100 static int* recursionForCurrentIsolate(); | |
| 101 | |
| 102 static ScriptExecutionContext* scriptExecutionContext(); | |
| 103 | |
| 104 static bool processingUserGesture(); | |
| 105 | |
| 106 static PassRefPtr<ScriptArguments> createScriptArguments(Dart_Handle argumen
t, Dart_Handle& exception); | |
| 107 static PassRefPtr<ScriptCallStack> createScriptCallStack(); | |
| 108 | |
| 109 static const uint8_t* fullSnapshot(); | |
| 110 | |
| 111 static void reportProblem(ScriptExecutionContext*, Dart_Handle); | |
| 112 | |
| 113 static Dart_Handle invalidNumberOfArgumentsException() | |
| 114 { | |
| 115 return Dart_NewString("Invalid number of arguments"); | |
| 116 } | |
| 117 | |
| 118 static Dart_Handle conditionalFunctionalityException() | |
| 119 { | |
| 120 return Dart_NewString("Ooops, this functionality is not enabled in this
browser"); | |
| 121 } | |
| 122 | |
| 123 static Dart_Handle notImplementedException() | |
| 124 { | |
| 125 Dart_Handle library = Dart_LookupLibrary(Dart_NewString(domLibraryName))
; | |
| 126 ASSERT(!Dart_IsError(library)); | |
| 127 Dart_Handle result = Dart_InvokeStatic(library, Dart_NewString("Utils"),
Dart_NewString("makeNotImplementedException"), 0, 0); | |
| 128 ASSERT(!Dart_IsError(result)); | |
| 129 return result; | |
| 130 } | |
| 131 | |
| 132 static Dart_Handle domDisabledException() | |
| 133 { | |
| 134 return Dart_NewString("DOM access is not enabled in this isolate"); | |
| 135 } | |
| 136 | |
| 137 static Dart_Handle internalErrorException(const char* msg) | |
| 138 { | |
| 139 // FIXME: wrap into proper type. | |
| 140 return Dart_NewString(msg); | |
| 141 } | |
| 142 }; | |
| 143 | |
| 144 class DartApiScope { | |
| 145 public: | |
| 146 DartApiScope() { Dart_EnterScope(); } | |
| 147 ~DartApiScope() { Dart_ExitScope(); } | |
| 148 }; | |
| 149 | |
| 150 #define DART_UNIMPLEMENTED() Dart_ThrowException(DartUtilities::notImplementedEx
ception()); | |
| 151 | |
| 152 } // namespace WebCore | |
| 153 | |
| 154 #endif // DartUtilities_h | |
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