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Unified Diff: Source/bindings/v8/V8AbstractEventListener.cpp

Issue 351423002: Moved files under Source/bindings/v8 to Source/bindings/core/v8. (Closed) Base URL: svn://svn.chromium.org/blink/trunk
Patch Set: Created 6 years, 6 months ago
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Index: Source/bindings/v8/V8AbstractEventListener.cpp
diff --git a/Source/bindings/v8/V8AbstractEventListener.cpp b/Source/bindings/v8/V8AbstractEventListener.cpp
deleted file mode 100644
index 12f78db556334310e7887fbf3441672d79b9f32a..0000000000000000000000000000000000000000
--- a/Source/bindings/v8/V8AbstractEventListener.cpp
+++ /dev/null
@@ -1,187 +0,0 @@
-/*
- * Copyright (C) 2006, 2007, 2008, 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"
-#include "bindings/v8/V8AbstractEventListener.h"
-
-#include "bindings/core/v8/V8Event.h"
-#include "bindings/core/v8/V8EventTarget.h"
-#include "bindings/v8/V8Binding.h"
-#include "bindings/v8/V8EventListenerList.h"
-#include "bindings/v8/V8HiddenValue.h"
-#include "core/events/BeforeUnloadEvent.h"
-#include "core/events/Event.h"
-#include "core/inspector/InspectorCounters.h"
-#include "core/workers/WorkerGlobalScope.h"
-
-namespace WebCore {
-
-V8AbstractEventListener::V8AbstractEventListener(bool isAttribute, ScriptState* scriptState)
- : EventListener(JSEventListenerType)
- , m_isAttribute(isAttribute)
- , m_scriptState(scriptState)
- , m_isolate(scriptState->isolate())
-{
- if (isMainThread())
- InspectorCounters::incrementCounter(InspectorCounters::JSEventListenerCounter);
-}
-
-V8AbstractEventListener::V8AbstractEventListener(bool isAttribute, v8::Isolate* isolate)
- : EventListener(JSEventListenerType)
- , m_isAttribute(isAttribute)
- , m_scriptState(nullptr)
- , m_isolate(isolate)
-{
- if (isMainThread())
- InspectorCounters::incrementCounter(InspectorCounters::JSEventListenerCounter);
-}
-
-V8AbstractEventListener::~V8AbstractEventListener()
-{
- if (!m_listener.isEmpty()) {
- v8::HandleScope scope(m_isolate);
- V8EventListenerList::clearWrapper(m_listener.newLocal(isolate()), m_isAttribute, isolate());
- }
- if (isMainThread())
- InspectorCounters::decrementCounter(InspectorCounters::JSEventListenerCounter);
-}
-
-void V8AbstractEventListener::handleEvent(ExecutionContext*, Event* event)
-{
- // Don't reenter V8 if execution was terminated in this instance of V8.
- if (scriptState()->executionContext()->isJSExecutionForbidden())
- return;
-
- ASSERT(event);
-
- // The callback function on XMLHttpRequest can clear the event listener and destroys 'this' object. Keep a local reference to it.
- // See issue 889829.
- RefPtr<V8AbstractEventListener> protect(this);
-
- if (scriptState()->contextIsEmpty())
- return;
- ScriptState::Scope scope(scriptState());
-
- // Get the V8 wrapper for the event object.
- v8::Handle<v8::Value> jsEvent = toV8(event, scriptState()->context()->Global(), isolate());
- if (jsEvent.IsEmpty())
- return;
- invokeEventHandler(event, v8::Local<v8::Value>::New(isolate(), jsEvent));
-}
-
-void V8AbstractEventListener::setListenerObject(v8::Handle<v8::Object> listener)
-{
- m_listener.set(isolate(), listener);
- m_listener.setWeak(this, &setWeakCallback);
-}
-
-void V8AbstractEventListener::invokeEventHandler(Event* event, v8::Local<v8::Value> jsEvent)
-{
- // If jsEvent is empty, attempt to set it as a hidden value would crash v8.
- if (jsEvent.IsEmpty())
- return;
-
- ASSERT(!scriptState()->contextIsEmpty());
- v8::Local<v8::Value> returnValue;
- {
- // Catch exceptions thrown in the event handler so they do not propagate to javascript code that caused the event to fire.
- v8::TryCatch tryCatch;
- tryCatch.SetVerbose(true);
-
- // Save the old 'event' property so we can restore it later.
- v8::Local<v8::Value> savedEvent = V8HiddenValue::getHiddenValue(isolate(), scriptState()->context()->Global(), V8HiddenValue::event(isolate()));
- tryCatch.Reset();
-
- // Make the event available in the global object, so LocalDOMWindow can expose it.
- V8HiddenValue::setHiddenValue(isolate(), scriptState()->context()->Global(), V8HiddenValue::event(isolate()), jsEvent);
- tryCatch.Reset();
-
- returnValue = callListenerFunction(jsEvent, event);
- if (tryCatch.HasCaught())
- event->target()->uncaughtExceptionInEventHandler();
-
- if (!tryCatch.CanContinue()) { // Result of TerminateExecution().
- if (scriptState()->executionContext()->isWorkerGlobalScope())
- toWorkerGlobalScope(scriptState()->executionContext())->script()->forbidExecution();
- return;
- }
- tryCatch.Reset();
-
- // Restore the old event. This must be done for all exit paths through this method.
- if (savedEvent.IsEmpty())
- V8HiddenValue::setHiddenValue(isolate(), scriptState()->context()->Global(), V8HiddenValue::event(isolate()), v8::Undefined(isolate()));
- else
- V8HiddenValue::setHiddenValue(isolate(), scriptState()->context()->Global(), V8HiddenValue::event(isolate()), savedEvent);
- tryCatch.Reset();
- }
-
- if (returnValue.IsEmpty())
- return;
-
- if (m_isAttribute && !returnValue->IsNull() && !returnValue->IsUndefined() && event->isBeforeUnloadEvent()) {
- TOSTRING_VOID(V8StringResource<>, stringReturnValue, returnValue);
- toBeforeUnloadEvent(event)->setReturnValue(stringReturnValue);
- }
-
- if (m_isAttribute && shouldPreventDefault(returnValue))
- event->preventDefault();
-}
-
-bool V8AbstractEventListener::shouldPreventDefault(v8::Local<v8::Value> returnValue)
-{
- // Prevent default action if the return value is false in accord with the spec
- // http://www.w3.org/TR/html5/webappapis.html#event-handler-attributes
- return returnValue->IsBoolean() && !returnValue->BooleanValue();
-}
-
-v8::Local<v8::Object> V8AbstractEventListener::getReceiverObject(Event* event)
-{
- v8::Local<v8::Object> listener = m_listener.newLocal(isolate());
- if (!m_listener.isEmpty() && !listener->IsFunction())
- return listener;
-
- EventTarget* target = event->currentTarget();
- v8::Handle<v8::Value> value = toV8(target, scriptState()->context()->Global(), isolate());
- if (value.IsEmpty())
- return v8::Local<v8::Object>();
- return v8::Local<v8::Object>::New(isolate(), v8::Handle<v8::Object>::Cast(value));
-}
-
-bool V8AbstractEventListener::belongsToTheCurrentWorld() const
-{
- return isolate()->InContext() && &world() == &DOMWrapperWorld::current(isolate());
-}
-
-void V8AbstractEventListener::setWeakCallback(const v8::WeakCallbackData<v8::Object, V8AbstractEventListener> &data)
-{
- data.GetParameter()->m_listener.clear();
-}
-
-} // namespace WebCore
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