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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<SerializedScriptValue> toSerializedScriptValue(Dart_Handle
object, Dart_Handle& exception); |
| 80 static PassRefPtr<EventTarget> toEventTarget(Dart_Handle object, Dart_Handle
& exception); |
| 81 |
| 82 static void toMessagePortArray(Dart_Handle object, MessagePortArray&, Dart_H
andle& exception); |
| 83 |
| 84 static void registerIsolateContext(Dart_Isolate, ScriptExecutionContext*); |
| 85 static ScriptExecutionContext* isolateContext(Dart_Isolate); |
| 86 static void unregisterIsolateContext(Dart_Isolate); |
| 87 static bool isFullDomIsolate(Dart_Isolate); |
| 88 |
| 89 static DOMWindow* domWindowForIsolate(Dart_Isolate); |
| 90 static DOMWindow* domWindowForCurrentIsolate(); |
| 91 |
| 92 static Dart_Handle domLibraryForCurrentIsolate(); |
| 93 static Dart_Handle pageLibraryForCurrentIsolate(); |
| 94 |
| 95 static DartDOMMap* domMapForIsolate(Dart_Isolate); |
| 96 static DartDOMMap* domMapForCurrentIsolate(); |
| 97 |
| 98 static int* recursionForIsolate(Dart_Isolate); |
| 99 static int* recursionForCurrentIsolate(); |
| 100 |
| 101 static ScriptExecutionContext* scriptExecutionContext(); |
| 102 |
| 103 static bool processingUserGesture(); |
| 104 |
| 105 static PassRefPtr<ScriptArguments> createScriptArguments(Dart_Handle argumen
t); |
| 106 static PassRefPtr<ScriptCallStack> createScriptCallStack(size_t maxStackSize
); |
| 107 |
| 108 static void reportProblem(ScriptExecutionContext*, Dart_Handle); |
| 109 |
| 110 static Dart_Handle invalidNumberOfArgumentsException() |
| 111 { |
| 112 return Dart_NewString("Invalid number of arguments"); |
| 113 } |
| 114 |
| 115 static Dart_Handle conditionalFunctionalityException() |
| 116 { |
| 117 return Dart_NewString("Ooops, this functionality is not enabled in this
browser"); |
| 118 } |
| 119 |
| 120 static Dart_Handle notImplementedException() |
| 121 { |
| 122 Dart_Handle library = Dart_LookupLibrary(Dart_NewString(domLibraryName))
; |
| 123 ASSERT(!Dart_IsError(library)); |
| 124 Dart_Handle result = Dart_InvokeStatic(library, Dart_NewString("Utils"),
Dart_NewString("makeNotImplementedException"), 0, 0); |
| 125 ASSERT(!Dart_IsError(result)); |
| 126 return result; |
| 127 } |
| 128 |
| 129 static Dart_Handle domDisabledException() |
| 130 { |
| 131 return Dart_NewString("DOM access is not enabled in this isolate"); |
| 132 } |
| 133 }; |
| 134 |
| 135 class DartApiScope { |
| 136 public: |
| 137 DartApiScope() { Dart_EnterScope(); } |
| 138 ~DartApiScope() { Dart_ExitScope(); } |
| 139 }; |
| 140 |
| 141 #define DART_UNIMPLEMENTED() Dart_ThrowException(DartUtilities::notImplementedEx
ception()); |
| 142 |
| 143 } // namespace WebCore |
| 144 |
| 145 #endif // DartUtilities_h |
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