1 /*
2 * Copyright (C) 2010 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/v8/V8ErrorHandler.h"
33
34 #include "bindings/core/v8/V8ErrorEvent.h"
35 #include "bindings/v8/ScriptController.h"
36 #include "bindings/v8/V8Binding.h"
37 #include "bindings/v8/V8HiddenValue.h"
38 #include "bindings/v8/V8ScriptRunner.h"
39 #include "core/dom/Document.h"
40 #include "core/dom/ExecutionContext.h"
41 #include "core/events/ErrorEvent.h"
42 #include "core/frame/LocalFrame.h"
43
44 namespace WebCore {
45
V8ErrorHandler(v8::Local<v8::Object> listener,bool isInline,ScriptState * scriptState)46 V8ErrorHandler::V8ErrorHandler(v8::Local<v8::Object> listener, bool isInline, ScriptState* scriptState)
47 : V8EventListener(listener, isInline, scriptState)
48 {
49 }
50
callListenerFunction(v8::Handle<v8::Value> jsEvent,Event * event)51 v8::Local<v8::Value> V8ErrorHandler::callListenerFunction(v8::Handle<v8::Value> jsEvent, Event* event)
52 {
53 if (!event->hasInterface(EventNames::ErrorEvent))
54 return V8EventListener::callListenerFunction(jsEvent, event);
55
56 ErrorEvent* errorEvent = static_cast<ErrorEvent*>(event);
57
58 if (errorEvent->world() && errorEvent->world() != &world())
59 return v8::Null(isolate());
60
61 v8::Local<v8::Object> listener = getListenerObject(scriptState()->executionContext());
62 v8::Local<v8::Value> returnValue;
63 if (!listener.IsEmpty() && listener->IsFunction()) {
64 v8::Local<v8::Function> callFunction = v8::Local<v8::Function>::Cast(listener);
65 v8::Local<v8::Object> thisValue = scriptState()->context()->Global();
66
67 v8::Local<v8::Value> error = V8HiddenValue::getHiddenValue(isolate(), jsEvent->ToObject(), V8HiddenValue::error(isolate()));
68 if (error.IsEmpty())
69 error = v8::Null(isolate());
70
71 v8::Handle<v8::Value> parameters[5] = { v8String(isolate(), errorEvent->message()), v8String(isolate(), errorEvent->filename()), v8::Integer::New(isolate(), errorEvent->lineno()), v8::Integer::New(isolate(), errorEvent->colno()), error };
72 v8::TryCatch tryCatch;
73 tryCatch.SetVerbose(true);
74 if (scriptState()->executionContext()->isWorkerGlobalScope())
75 returnValue = V8ScriptRunner::callFunction(callFunction, scriptState()->executionContext(), thisValue, WTF_ARRAY_LENGTH(parameters), parameters, isolate());
76 else
77 returnValue = ScriptController::callFunction(scriptState()->executionContext(), callFunction, thisValue, WTF_ARRAY_LENGTH(parameters), parameters, isolate());
78 }
79 return returnValue;
80 }
81
82 // static
storeExceptionOnErrorEventWrapper(ErrorEvent * event,v8::Handle<v8::Value> data,v8::Handle<v8::Object> creationContext,v8::Isolate * isolate)83 void V8ErrorHandler::storeExceptionOnErrorEventWrapper(ErrorEvent* event, v8::Handle<v8::Value> data, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate)
84 {
85 v8::Local<v8::Value> wrappedEvent = toV8(event, creationContext, isolate);
86 if (!wrappedEvent.IsEmpty()) {
87 ASSERT(wrappedEvent->IsObject());
88 V8HiddenValue::setHiddenValue(isolate, v8::Local<v8::Object>::Cast(wrappedEvent), V8HiddenValue::error(isolate), data);
89 }
90 }
91
shouldPreventDefault(v8::Local<v8::Value> returnValue)92 bool V8ErrorHandler::shouldPreventDefault(v8::Local<v8::Value> returnValue)
93 {
94 return returnValue->IsBoolean() && returnValue->BooleanValue();
95 }
96
97 } // namespace WebCore
98