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 |