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 "V8ErrorEvent.h"
35 #include "bindings/v8/ScriptController.h"
36 #include "bindings/v8/V8Binding.h"
37 #include "bindings/v8/V8HiddenPropertyName.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/events/ThreadLocalEventNames.h"
43 #include "core/frame/Frame.h"
44
45 namespace WebCore {
46
V8ErrorHandler(v8::Local<v8::Object> listener,bool isInline,v8::Isolate * isolate)47 V8ErrorHandler::V8ErrorHandler(v8::Local<v8::Object> listener, bool isInline, v8::Isolate* isolate)
48 : V8EventListener(listener, isInline, isolate)
49 {
50 }
51
callListenerFunction(ExecutionContext * context,v8::Handle<v8::Value> jsEvent,Event * event)52 v8::Local<v8::Value> V8ErrorHandler::callListenerFunction(ExecutionContext* context, v8::Handle<v8::Value> jsEvent, Event* event)
53 {
54 if (!event->hasInterface(EventNames::ErrorEvent))
55 return V8EventListener::callListenerFunction(context, jsEvent, event);
56
57 ErrorEvent* errorEvent = static_cast<ErrorEvent*>(event);
58
59 v8::Isolate* isolate = toV8Context(context, world())->GetIsolate();
60 if (errorEvent->world() && errorEvent->world() != world())
61 return v8::Null(isolate);
62
63 v8::Local<v8::Object> listener = getListenerObject(context);
64 v8::Local<v8::Value> returnValue;
65 if (!listener.IsEmpty() && listener->IsFunction()) {
66 v8::Local<v8::Function> callFunction = v8::Local<v8::Function>::Cast(listener);
67 v8::Local<v8::Object> thisValue = isolate->GetCurrentContext()->Global();
68
69 v8::Local<v8::Value> error = jsEvent->ToObject()->GetHiddenValue(V8HiddenPropertyName::error(isolate));
70 if (error.IsEmpty())
71 error = v8::Null(isolate);
72
73 v8::Handle<v8::Value> parameters[5] = { v8String(isolate, errorEvent->message()), v8String(isolate, errorEvent->filename()), v8::Integer::New(errorEvent->lineno(), isolate), v8::Integer::New(errorEvent->colno(), isolate), error };
74 v8::TryCatch tryCatch;
75 tryCatch.SetVerbose(true);
76 if (worldType(isolate) == WorkerWorld)
77 returnValue = V8ScriptRunner::callFunction(callFunction, context, thisValue, WTF_ARRAY_LENGTH(parameters), parameters, isolate);
78 else
79 returnValue = ScriptController::callFunction(context, callFunction, thisValue, WTF_ARRAY_LENGTH(parameters), parameters, isolate);
80 }
81 return returnValue;
82 }
83
84 // static
storeExceptionOnErrorEventWrapper(ErrorEvent * event,v8::Handle<v8::Value> data,v8::Isolate * isolate)85 void V8ErrorHandler::storeExceptionOnErrorEventWrapper(ErrorEvent* event, v8::Handle<v8::Value> data, v8::Isolate* isolate)
86 {
87 v8::Local<v8::Value> wrappedEvent = toV8(event, v8::Handle<v8::Object>(), isolate);
88 if (!wrappedEvent.IsEmpty()) {
89 ASSERT(wrappedEvent->IsObject());
90 v8::Local<v8::Object>::Cast(wrappedEvent)->SetHiddenValue(V8HiddenPropertyName::error(isolate), data);
91 }
92 }
93
shouldPreventDefault(v8::Local<v8::Value> returnValue)94 bool V8ErrorHandler::shouldPreventDefault(v8::Local<v8::Value> returnValue)
95 {
96 return returnValue->IsBoolean() && returnValue->BooleanValue();
97 }
98
99 } // namespace WebCore
100