| // Copyright (c) 2009, Google Inc. |
| // All rights reserved. |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following disclaimer |
| // in the documentation and/or other materials provided with the |
| // distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived from |
| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #include "config.h" |
| |
| #if ENABLE(WORKERS) |
| |
| #include "v8_binding.h" |
| #include "v8_custom.h" |
| #include "v8_proxy.h" |
| #include "WorkerContextExecutionProxy.h" |
| |
| #include "ExceptionCode.h" |
| #include "MessagePort.h" |
| #include "NotImplemented.h" |
| #include "V8Document.h" |
| #include "V8HTMLDocument.h" |
| #include "V8WorkerContextEventListener.h" |
| #include "WorkerContext.h" |
| |
| namespace WebCore { |
| |
| // TODO(mbelshe) - merge these with XHR's CreateHiddenXHRDependency |
| |
| // Use an array to hold dependents. It works like a ref-counted scheme. |
| // A value can be added more than once to the xhr object. |
| static void CreateHiddenDependency(v8::Local<v8::Object> object, |
| v8::Local<v8::Value> value) { |
| ASSERT(V8Proxy::GetDOMWrapperType(object) == V8ClassIndex::WORKERCONTEXT); |
| v8::Local<v8::Value> cache = |
| object->GetInternalField(V8Custom::kWorkerContextRequestCacheIndex); |
| if (cache->IsNull() || cache->IsUndefined()) { |
| cache = v8::Array::New(); |
| object->SetInternalField(V8Custom::kWorkerContextRequestCacheIndex, cache); |
| } |
| |
| v8::Local<v8::Array> cache_array = v8::Local<v8::Array>::Cast(cache); |
| cache_array->Set(v8::Integer::New(cache_array->Length()), value); |
| } |
| |
| static void RemoveHiddenDependency(v8::Local<v8::Object> object, |
| v8::Local<v8::Value> value) { |
| ASSERT(V8Proxy::GetDOMWrapperType(object) == V8ClassIndex::WORKERCONTEXT); |
| v8::Local<v8::Value> cache = |
| object->GetInternalField(V8Custom::kWorkerContextRequestCacheIndex); |
| ASSERT(cache->IsArray()); |
| v8::Local<v8::Array> cache_array = v8::Local<v8::Array>::Cast(cache); |
| for (int i = cache_array->Length() - 1; i >= 0; i--) { |
| v8::Local<v8::Value> cached = cache_array->Get(v8::Integer::New(i)); |
| if (cached->StrictEquals(value)) { |
| cache_array->Delete(i); |
| return; |
| } |
| } |
| |
| // We should only get here if we try to remove an event listener that was |
| // never added. |
| } |
| |
| ACCESSOR_GETTER(WorkerContextSelf) { |
| INC_STATS(L"DOM.WorkerContext.self._get"); |
| WorkerContext* imp = V8Proxy::ToNativeObject<WorkerContext>( |
| V8ClassIndex::WORKERCONTEXT, info.Holder()); |
| return WorkerContextExecutionProxy::WorkerContextToV8Object(imp); |
| } |
| |
| ACCESSOR_GETTER(WorkerContextOnmessage) { |
| INC_STATS(L"DOM.WorkerContext.onmessage._get"); |
| WorkerContext* imp = V8Proxy::ToNativeObject<WorkerContext>( |
| V8ClassIndex::WORKERCONTEXT, info.Holder()); |
| if (imp->onmessage()) { |
| V8WorkerContextEventListener* listener = |
| static_cast<V8WorkerContextEventListener*>(imp->onmessage()); |
| v8::Local<v8::Object> v8_listener = listener->getListenerObject(); |
| return v8_listener; |
| } |
| return v8::Undefined(); |
| } |
| |
| ACCESSOR_SETTER(WorkerContextOnmessage) { |
| INC_STATS(L"DOM.WorkerContext.onmessage._set"); |
| WorkerContext* imp = V8Proxy::ToNativeObject<WorkerContext>( |
| V8ClassIndex::WORKERCONTEXT, info.Holder()); |
| V8WorkerContextEventListener* old_listener = |
| static_cast<V8WorkerContextEventListener*>(imp->onmessage()); |
| if (value->IsNull()) { |
| if (imp->onmessage()) { |
| v8::Local<v8::Object> old_v8_listener = old_listener->getListenerObject(); |
| RemoveHiddenDependency(info.Holder(), old_v8_listener); |
| } |
| |
| // Clear the listener |
| imp->setOnmessage(0); |
| |
| } else { |
| RefPtr<V8EventListener> listener = |
| imp->script()->proxy()->FindOrCreateEventListener( |
| v8::Local<v8::Object>::Cast(value), false, false); |
| if (listener) { |
| if (old_listener) { |
| v8::Local<v8::Object> old_v8_listener = |
| old_listener->getListenerObject(); |
| RemoveHiddenDependency(info.Holder(), old_v8_listener); |
| } |
| |
| imp->setOnmessage(listener); |
| CreateHiddenDependency(info.Holder(), value); |
| } |
| } |
| } |
| |
| v8::Handle<v8::Value> SetTimeoutOrInterval(const v8::Arguments& args, |
| bool singleShot) { |
| WorkerContext* imp = V8Proxy::ToNativeObject<WorkerContext>( |
| V8ClassIndex::WORKERCONTEXT, args.Holder()); |
| |
| int delay = ToInt32(args[1]); |
| |
| notImplemented(); |
| |
| return v8::Undefined(); |
| } |
| |
| v8::Handle<v8::Value> ClearTimeoutOrInterval(const v8::Arguments& args) { |
| WorkerContext* imp = V8Proxy::ToNativeObject<WorkerContext>( |
| V8ClassIndex::WORKERCONTEXT, args.Holder()); |
| |
| bool ok = false; |
| int tid = ToInt32(args[0], ok); |
| if (ok) { |
| imp->removeTimeout(tid); |
| } |
| |
| return v8::Undefined(); |
| } |
| |
| CALLBACK_FUNC_DECL(WorkerContextImportScripts) { |
| INC_STATS(L"DOM.WorkerContext.importScripts()"); |
| notImplemented(); |
| return v8::Undefined(); |
| } |
| |
| CALLBACK_FUNC_DECL(WorkerContextSetTimeout) { |
| INC_STATS(L"DOM.WorkerContext.setTimeout()"); |
| return SetTimeoutOrInterval(args, true); |
| } |
| |
| CALLBACK_FUNC_DECL(WorkerContextClearTimeout) { |
| INC_STATS(L"DOM.WorkerContext.clearTimeout()"); |
| return ClearTimeoutOrInterval(args); |
| } |
| |
| CALLBACK_FUNC_DECL(WorkerContextSetInterval) { |
| INC_STATS(L"DOM.WorkerContext.setInterval()"); |
| return SetTimeoutOrInterval(args, false); |
| } |
| |
| CALLBACK_FUNC_DECL(WorkerContextClearInterval) { |
| INC_STATS(L"DOM.WorkerContext.clearInterval()"); |
| return ClearTimeoutOrInterval(args); |
| } |
| |
| CALLBACK_FUNC_DECL(WorkerContextAddEventListener) { |
| INC_STATS(L"DOM.WorkerContext.addEventListener()"); |
| WorkerContext* imp = V8Proxy::ToNativeObject<WorkerContext>( |
| V8ClassIndex::WORKERCONTEXT, args.Holder()); |
| |
| RefPtr<V8EventListener> listener = |
| imp->script()->proxy()->FindOrCreateEventListener( |
| v8::Local<v8::Object>::Cast(args[1]), false, false); |
| |
| if (listener) { |
| String type = ToWebCoreString(args[0]); |
| bool useCapture = args[2]->BooleanValue(); |
| imp->addEventListener(type, listener, useCapture); |
| |
| CreateHiddenDependency(args.Holder(), args[1]); |
| } |
| return v8::Undefined(); |
| } |
| |
| CALLBACK_FUNC_DECL(WorkerContextRemoveEventListener) { |
| INC_STATS(L"DOM.WorkerContext.removeEventListener()"); |
| WorkerContext* imp = V8Proxy::ToNativeObject<WorkerContext>( |
| V8ClassIndex::WORKERCONTEXT, args.Holder()); |
| WorkerContextExecutionProxy* proxy = imp->script()->proxy(); |
| |
| RefPtr<V8EventListener> listener = proxy->FindOrCreateEventListener( |
| v8::Local<v8::Object>::Cast(args[1]), false, true); |
| |
| if (listener) { |
| String type = ToWebCoreString(args[0]); |
| bool useCapture = args[2]->BooleanValue(); |
| imp->removeEventListener(type, listener.get(), useCapture); |
| |
| RemoveHiddenDependency(args.Holder(), args[1]); |
| } |
| |
| return v8::Undefined(); |
| } |
| |
| } // namespace WebCore |
| |
| #endif // ENABLE(WORKERS) |