1/*
2 * Copyright (C) 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#include "bindings/core/v8/V8WorkerGlobalScope.h"
33
34#include "bindings/core/v8/ExceptionState.h"
35#include "bindings/core/v8/ScheduledAction.h"
36#include "bindings/core/v8/V8Binding.h"
37#include "bindings/core/v8/V8WorkerGlobalScopeEventListener.h"
38#include "bindings/core/v8/WorkerScriptController.h"
39#include "core/frame/DOMTimer.h"
40#include "core/frame/DOMWindowTimers.h"
41#include "core/frame/csp/ContentSecurityPolicy.h"
42#include "core/inspector/ScriptCallStack.h"
43#include "core/workers/WorkerGlobalScope.h"
44#include "wtf/OwnPtr.h"
45
46namespace blink {
47
48static void setTimeoutOrInterval(const v8::FunctionCallbackInfo<v8::Value>& info, bool singleShot)
49{
50    WorkerGlobalScope* workerGlobalScope = V8WorkerGlobalScope::toImpl(info.Holder());
51    ASSERT(workerGlobalScope);
52
53    int argumentCount = info.Length();
54    if (argumentCount < 1)
55        return;
56
57    v8::Handle<v8::Value> function = info[0];
58
59    WorkerScriptController* script = workerGlobalScope->script();
60    if (!script)
61        return;
62
63    ScriptState* scriptState = ScriptState::current(info.GetIsolate());
64    OwnPtr<ScheduledAction> action;
65    if (function->IsString()) {
66        if (ContentSecurityPolicy* policy = workerGlobalScope->contentSecurityPolicy()) {
67            if (!policy->allowEval()) {
68                v8SetReturnValue(info, 0);
69                return;
70            }
71        }
72        action = adoptPtr(new ScheduledAction(scriptState, toCoreString(function.As<v8::String>()), KURL(), info.GetIsolate()));
73    } else if (function->IsFunction()) {
74        size_t paramCount = argumentCount >= 2 ? argumentCount - 2 : 0;
75        OwnPtr<v8::Local<v8::Value>[]> params;
76        if (paramCount > 0) {
77            params = adoptArrayPtr(new v8::Local<v8::Value>[paramCount]);
78            for (size_t i = 0; i < paramCount; ++i)
79                params[i] = info[i+2];
80        }
81        // ScheduledAction takes ownership of actual params and releases them in its destructor.
82        action = adoptPtr(new ScheduledAction(scriptState, v8::Handle<v8::Function>::Cast(function), paramCount, params.get(), info.GetIsolate()));
83    } else {
84        return;
85    }
86
87    int32_t timeout = argumentCount >= 2 ? info[1]->Int32Value() : 0;
88    int timerId;
89    if (singleShot)
90        timerId = DOMWindowTimers::setTimeout(*workerGlobalScope, action.release(), timeout);
91    else
92        timerId = DOMWindowTimers::setInterval(*workerGlobalScope, action.release(), timeout);
93
94    v8SetReturnValue(info, timerId);
95}
96
97void V8WorkerGlobalScope::setTimeoutMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
98{
99    return setTimeoutOrInterval(info, true);
100}
101
102void V8WorkerGlobalScope::setIntervalMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
103{
104    return setTimeoutOrInterval(info, false);
105}
106
107v8::Handle<v8::Value> toV8(WorkerGlobalScope* impl, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate)
108{
109    // Notice that we explicitly ignore creationContext because the WorkerGlobalScope is its own creationContext.
110
111    if (!impl)
112        return v8::Null(isolate);
113
114    WorkerScriptController* script = impl->script();
115    if (!script)
116        return v8::Null(isolate);
117
118    v8::Handle<v8::Object> global = script->context()->Global();
119    ASSERT(!global.IsEmpty());
120    return global;
121}
122
123} // namespace blink
124