| /* |
| * Copyright (C) 2007-2009 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 "bindings/core/v8/ScheduledAction.h" |
| |
| #include "bindings/core/v8/ScriptController.h" |
| #include "bindings/core/v8/ScriptSourceCode.h" |
| #include "bindings/core/v8/V8Binding.h" |
| #include "bindings/core/v8/V8GCController.h" |
| #include "bindings/core/v8/V8ScriptRunner.h" |
| #include "core/dom/Document.h" |
| #include "core/dom/ExecutionContext.h" |
| #include "core/frame/LocalFrame.h" |
| #include "core/workers/WorkerGlobalScope.h" |
| #include "core/workers/WorkerThread.h" |
| #include "platform/TraceEvent.h" |
| |
| namespace blink { |
| |
| ScheduledAction* ScheduledAction::create(ScriptState* scriptState, |
| const ScriptValue& handler, |
| const Vector<ScriptValue>& arguments) { |
| ASSERT(handler.isFunction()); |
| return new ScheduledAction(scriptState, handler, arguments); |
| } |
| |
| ScheduledAction* ScheduledAction::create(ScriptState* scriptState, |
| const String& handler) { |
| return new ScheduledAction(scriptState, handler); |
| } |
| |
| DEFINE_TRACE(ScheduledAction) { |
| visitor->trace(m_code); |
| } |
| |
| ScheduledAction::~ScheduledAction() {} |
| |
| void ScheduledAction::execute(ExecutionContext* context) { |
| if (context->isDocument()) { |
| LocalFrame* frame = toDocument(context)->frame(); |
| if (!frame) { |
| DVLOG(1) << "ScheduledAction::execute " << this << ": no frame"; |
| return; |
| } |
| if (!frame->script().canExecuteScripts(AboutToExecuteScript)) { |
| DVLOG(1) << "ScheduledAction::execute " << this |
| << ": frame can not execute scripts"; |
| return; |
| } |
| execute(frame); |
| } else { |
| DVLOG(1) << "ScheduledAction::execute " << this << ": worker scope"; |
| execute(toWorkerGlobalScope(context)); |
| } |
| } |
| |
| ScheduledAction::ScheduledAction(ScriptState* scriptState, |
| const ScriptValue& function, |
| const Vector<ScriptValue>& arguments) |
| : m_scriptState(scriptState), |
| m_info(scriptState->isolate()), |
| m_code(String(), KURL(), TextPosition::belowRangePosition()) { |
| ASSERT(function.isFunction()); |
| m_function.set(scriptState->isolate(), |
| v8::Local<v8::Function>::Cast(function.v8Value())); |
| m_info.ReserveCapacity(arguments.size()); |
| for (const ScriptValue& argument : arguments) |
| m_info.Append(argument.v8Value()); |
| } |
| |
| ScheduledAction::ScheduledAction(ScriptState* scriptState, const String& code) |
| : m_scriptState(scriptState), |
| m_info(scriptState->isolate()), |
| m_code(code, KURL()) {} |
| |
| void ScheduledAction::execute(LocalFrame* frame) { |
| if (!m_scriptState->contextIsValid()) { |
| DVLOG(1) << "ScheduledAction::execute " << this << ": context is empty"; |
| return; |
| } |
| |
| TRACE_EVENT0("v8", "ScheduledAction::execute"); |
| ScriptState::Scope scope(m_scriptState.get()); |
| if (!m_function.isEmpty()) { |
| DVLOG(1) << "ScheduledAction::execute " << this << ": have function"; |
| v8::Local<v8::Function> function = |
| m_function.newLocal(m_scriptState->isolate()); |
| ScriptState* scriptStateForFunc = |
| ScriptState::from(function->CreationContext()); |
| if (!scriptStateForFunc->contextIsValid()) { |
| DVLOG(1) << "ScheduledAction::execute " << this |
| << ": function's context is empty"; |
| return; |
| } |
| Vector<v8::Local<v8::Value>> info; |
| createLocalHandlesForArgs(&info); |
| V8ScriptRunner::callFunction( |
| function, frame->document(), m_scriptState->context()->Global(), |
| info.size(), info.data(), m_scriptState->isolate()); |
| } else { |
| DVLOG(1) << "ScheduledAction::execute " << this |
| << ": executing from source"; |
| frame->script().executeScriptAndReturnValue(m_scriptState->context(), |
| ScriptSourceCode(m_code)); |
| } |
| |
| // The frame might be invalid at this point because JavaScript could have |
| // released it. |
| } |
| |
| void ScheduledAction::execute(WorkerGlobalScope* worker) { |
| ASSERT(worker->thread()->isCurrentThread()); |
| |
| if (!m_scriptState->contextIsValid()) { |
| DVLOG(1) << "ScheduledAction::execute " << this << ": context is empty"; |
| return; |
| } |
| |
| if (!m_function.isEmpty()) { |
| ScriptState::Scope scope(m_scriptState.get()); |
| v8::Local<v8::Function> function = |
| m_function.newLocal(m_scriptState->isolate()); |
| ScriptState* scriptStateForFunc = |
| ScriptState::from(function->CreationContext()); |
| if (!scriptStateForFunc->contextIsValid()) { |
| DVLOG(1) << "ScheduledAction::execute " << this |
| << ": function's context is empty"; |
| return; |
| } |
| Vector<v8::Local<v8::Value>> info; |
| createLocalHandlesForArgs(&info); |
| V8ScriptRunner::callFunction( |
| function, worker, m_scriptState->context()->Global(), info.size(), |
| info.data(), m_scriptState->isolate()); |
| } else { |
| worker->scriptController()->evaluate(m_code); |
| } |
| } |
| |
| void ScheduledAction::createLocalHandlesForArgs( |
| Vector<v8::Local<v8::Value>>* handles) { |
| handles->reserveCapacity(m_info.Size()); |
| for (size_t i = 0; i < m_info.Size(); ++i) |
| handles->append(m_info.Get(i)); |
| } |
| |
| } // namespace blink |