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| 1 /* | |
| 2 * Copyright (C) 2006-2011 Google Inc. 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 | |
| 31 #include "config.h" | |
| 32 #include "bindings/core/dart/DartCallback.h" | |
| 33 | |
| 34 #include "bindings/core/dart/DartController.h" | |
| 35 #include "bindings/core/dart/DartDOMData.h" | |
| 36 #include "bindings/core/dart/DartUtilities.h" | |
| 37 | |
| 38 namespace blink { | |
| 39 | |
| 40 DartCallback::DartCallback(Dart_Handle object, Dart_Handle& exception) | |
| 41 { | |
| 42 if (!Dart_IsClosure(object)) { | |
| 43 exception = Dart_NewStringFromCString("Callback must be a function"); | |
| 44 m_callback = 0; | |
| 45 return; | |
| 46 } | |
| 47 m_callback = Dart_NewPersistentHandle(object); | |
| 48 } | |
| 49 | |
| 50 DartCallback::~DartCallback() | |
| 51 { | |
| 52 if (!m_callback || !isIsolateAlive()) | |
| 53 return; | |
| 54 | |
| 55 DartIsolateScope scope(isolate()); | |
| 56 Dart_DeletePersistentHandle(m_callback); | |
| 57 } | |
| 58 | |
| 59 bool DartCallback::handleEvent(int argc, Dart_Handle* argv) | |
| 60 { | |
| 61 ASSERT(isolate() == Dart_CurrentIsolate()); | |
| 62 ASSERT(m_callback); | |
| 63 | |
| 64 ExecutionContext* context = DartDOMData::current()->scriptExecutionContext()
; | |
| 65 DartController* dartController = DartController::retrieve(context); | |
| 66 | |
| 67 Dart_Handle result = dartController->callFunction(Dart_HandleFromPersistent(
m_callback), argc, argv); | |
| 68 if (Dart_IsError(result)) { | |
| 69 DartUtilities::reportProblem(context, result); | |
| 70 return false; | |
| 71 } | |
| 72 | |
| 73 return true; | |
| 74 } | |
| 75 | |
| 76 } | |
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