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| 1 /* | |
| 2 * Copyright (C) 2006, 2007, 2008, 2009 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 | |
| 33 #include "bindings/v8/V8WorkerContextEventListener.h" | |
| 34 | |
| 35 #include "V8Event.h" | |
| 36 #include "V8EventTarget.h" | |
| 37 #include "bindings/v8/V8Binding.h" | |
| 38 #include "bindings/v8/V8DOMWrapper.h" | |
| 39 #include "bindings/v8/V8GCController.h" | |
| 40 #include "bindings/v8/V8ScriptRunner.h" | |
| 41 #include "bindings/v8/WorkerScriptController.h" | |
| 42 #include "core/inspector/InspectorInstrumentation.h" | |
| 43 #include "core/workers/WorkerContext.h" | |
| 44 | |
| 45 namespace WebCore { | |
| 46 | |
| 47 V8WorkerContextEventListener::V8WorkerContextEventListener(v8::Local<v8::Object>
listener, bool isInline) | |
| 48 : V8EventListener(listener, isInline) | |
| 49 { | |
| 50 } | |
| 51 | |
| 52 void V8WorkerContextEventListener::handleEvent(ScriptExecutionContext* context,
Event* event) | |
| 53 { | |
| 54 if (!context) | |
| 55 return; | |
| 56 | |
| 57 // The callback function on XMLHttpRequest can clear the event listener and
destroys 'this' object. Keep a local reference to it. | |
| 58 // See issue 889829. | |
| 59 RefPtr<V8AbstractEventListener> protect(this); | |
| 60 | |
| 61 v8::HandleScope handleScope; | |
| 62 | |
| 63 ASSERT(context->isWorkerContext()); | |
| 64 WorkerScriptController* script = static_cast<WorkerContext*>(context)->scrip
t(); | |
| 65 if (!script) | |
| 66 return; | |
| 67 | |
| 68 v8::Handle<v8::Context> v8Context = script->context(); | |
| 69 if (v8Context.IsEmpty()) | |
| 70 return; | |
| 71 | |
| 72 // Enter the V8 context in which to perform the event handling. | |
| 73 v8::Context::Scope scope(v8Context); | |
| 74 | |
| 75 // Get the V8 wrapper for the event object. | |
| 76 v8::Isolate* isolate = v8Context->GetIsolate(); | |
| 77 v8::Handle<v8::Value> jsEvent = toV8(event, v8::Handle<v8::Object>(), isolat
e); | |
| 78 | |
| 79 invokeEventHandler(context, event, v8::Local<v8::Value>::New(isolate, jsEven
t)); | |
| 80 } | |
| 81 | |
| 82 v8::Local<v8::Value> V8WorkerContextEventListener::callListenerFunction(ScriptEx
ecutionContext* context, v8::Handle<v8::Value> jsEvent, Event* event) | |
| 83 { | |
| 84 V8GCController::checkMemoryUsage(); | |
| 85 | |
| 86 v8::Local<v8::Function> handlerFunction = getListenerFunction(context); | |
| 87 v8::Local<v8::Object> receiver = getReceiverObject(context, event); | |
| 88 if (handlerFunction.IsEmpty() || receiver.IsEmpty()) | |
| 89 return v8::Local<v8::Value>(); | |
| 90 | |
| 91 InspectorInstrumentationCookie cookie; | |
| 92 if (InspectorInstrumentation::timelineAgentEnabled(context)) { | |
| 93 String resourceName("undefined"); | |
| 94 int lineNumber = 1; | |
| 95 v8::ScriptOrigin origin = handlerFunction->GetScriptOrigin(); | |
| 96 if (!origin.ResourceName().IsEmpty()) { | |
| 97 resourceName = toWebCoreString(origin.ResourceName()); | |
| 98 lineNumber = handlerFunction->GetScriptLineNumber() + 1; | |
| 99 } | |
| 100 cookie = InspectorInstrumentation::willCallFunction(context, resourceNam
e, lineNumber); | |
| 101 } | |
| 102 | |
| 103 v8::Handle<v8::Value> parameters[1] = { jsEvent }; | |
| 104 v8::Local<v8::Value> result = V8ScriptRunner::callFunction(handlerFunction,
context, receiver, WTF_ARRAY_LENGTH(parameters), parameters); | |
| 105 | |
| 106 InspectorInstrumentation::didCallFunction(cookie); | |
| 107 | |
| 108 return result; | |
| 109 } | |
| 110 | |
| 111 v8::Local<v8::Object> V8WorkerContextEventListener::getReceiverObject(ScriptExec
utionContext* context, Event* event) | |
| 112 { | |
| 113 v8::Local<v8::Object> listener = getListenerObject(context); | |
| 114 | |
| 115 if (!listener.IsEmpty() && !listener->IsFunction()) | |
| 116 return listener; | |
| 117 | |
| 118 EventTarget* target = event->currentTarget(); | |
| 119 v8::Handle<v8::Value> value = toV8(target, v8::Handle<v8::Object>(), toV8Con
text(context, world())->GetIsolate()); | |
| 120 if (value.IsEmpty()) | |
| 121 return v8::Local<v8::Object>(); | |
| 122 return v8::Local<v8::Object>::New(v8::Handle<v8::Object>::Cast(value)); | |
| 123 } | |
| 124 | |
| 125 } // namespace WebCore | |
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Chromium Code Reviews
Issue 17648006:
Rename WorkerContext to WorkerGlobalScope (Closed)
Base URL: svn://svn.chromium.org/blink/trunk