WebKit merge 41660:41709 (WebKit side)....

third_party/WebKit/WebCore/bindings/v8/custom/V8AbstractEventListener.cpp

Index: third_party/WebKit/WebCore/bindings/v8/custom/V8AbstractEventListener.cpp
===================================================================
--- third_party/WebKit/WebCore/bindings/v8/custom/V8AbstractEventListener.cpp	(revision 11711)
+++ third_party/WebKit/WebCore/bindings/v8/custom/V8AbstractEventListener.cpp	(working copy)
@@ -1,165 +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 "V8AbstractEventListener.h"
-
-#include "Document.h"
-#include "Event.h"
-#include "Frame.h"
-#include "Tokenizer.h"
-#include "V8Binding.h"
-
-namespace WebCore {
-
-V8AbstractEventListener::V8AbstractEventListener(Frame* frame, bool isInline)
-    : m_isInline(isInline)
-    , m_frame(frame)
-    , m_lineNumber(0)
-    , m_columnNumber(0)
-{
-    if (!m_frame)
-        return;
-
-    // Get the position in the source if any.
-    if (m_isInline && m_frame->document()->tokenizer()) {
-        m_lineNumber = m_frame->document()->tokenizer()->lineNumber();
-        m_columnNumber = m_frame->document()->tokenizer()->columnNumber();
-    }
-}
-
-void V8AbstractEventListener::invokeEventHandler(v8::Handle<v8::Context> context, Event* event, bool isWindowEvent)
-{
-    // Enter the V8 context in which to perform the event handling.
-    v8::Context::Scope scope(context);
-
-    // Get the V8 wrapper for the event object.
-    v8::Handle<v8::Value> jsEvent = V8Proxy::EventToV8Object(event);
-
-    // For compatibility, we store the event object as a property on the window called "event".  Because this is the global namespace, we save away any
-    // existing "event" property, and then restore it after executing the javascript handler.
-    v8::Local<v8::String> eventSymbol = v8::String::NewSymbol("event");
-    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.
-        // Setting and getting the 'event' property on the global object can throw exceptions as well (for instance if accessors that
-        // throw exceptions are defined for 'event' using __defineGetter__ and __defineSetter__ on the global object).
-        v8::TryCatch tryCatch;
-        tryCatch.SetVerbose(true);
-
-        // Save the old 'event' property so we can restore it later.
-        v8::Local<v8::Value> savedEvent = context->Global()->Get(eventSymbol);
-        tryCatch.Reset();
-
-        // Make the event available in the window object.
-        //
-        // FIXME: This does not work as it does with jsc bindings if the window.event property is already set. We need to make sure that property
-        // access is intercepted correctly.
-        context->Global()->Set(eventSymbol, jsEvent);
-        tryCatch.Reset();
-
-        // Call the event handler.
-        returnValue = callListenerFunction(jsEvent, event, isWindowEvent);
-        tryCatch.Reset();
-
-        // Restore the old event. This must be done for all exit paths through this method.
-        if (savedEvent.IsEmpty())
-            context->Global()->Set(eventSymbol, v8::Undefined());
-        else
-            context->Global()->Set(eventSymbol, savedEvent);
-        tryCatch.Reset();
-    }
-
-    ASSERT(!V8Proxy::HandleOutOfMemory() || returnValue.IsEmpty());
-
-    if (returnValue.IsEmpty())
-        return;
-
-    if (!returnValue->IsNull() && !returnValue->IsUndefined() && event->storesResultAsString())
-        event->storeResult(toWebCoreString(returnValue));
-
-    // Prevent default action if the return value is false;
-    // FIXME: Add example, and reference to bug entry.
-    if (m_isInline && returnValue->IsBoolean() && !returnValue->BooleanValue())
-        event->preventDefault();
-}
-
-void V8AbstractEventListener::handleEvent(Event* event, bool isWindowEvent)
-{
-    // EventListener could be disconnected from the frame.
-    if (disconnected())
-        return;
-
-    // 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);
-
-    v8::HandleScope handleScope;
-
-    v8::Handle<v8::Context> context = V8Proxy::GetContext(m_frame);
-    if (context.IsEmpty())
-        return;
-
-    // m_frame can removed by the callback function, protect it until the callback function returns.
-    RefPtr<Frame> protectFrame(m_frame);
-
-    invokeEventHandler(context, event, isWindowEvent);
-
-    Document::updateDocumentsRendering();
-}
-
-void V8AbstractEventListener::disposeListenerObject()
-{
-    if (!m_listener.IsEmpty()) {
-#ifndef NDEBUG
-        V8Proxy::UnregisterGlobalHandle(this, m_listener);
-#endif
-        m_listener.Dispose();
-        m_listener.Clear();
-    }
-}
-
-v8::Local<v8::Object> V8AbstractEventListener::getReceiverObject(Event* event, bool isWindowEvent)
-{
-    if (!m_listener.IsEmpty() && !m_listener->IsFunction())
-        return v8::Local<v8::Object>::New(m_listener);
-
-    if (isWindowEvent)
-        return v8::Context::GetCurrent()->Global();
-
-    EventTarget* target = event->currentTarget();
-    v8::Handle<v8::Value> value = V8Proxy::EventTargetToV8Object(target);
-    if (value.IsEmpty())
-        return v8::Local<v8::Object>();
-    return v8::Local<v8::Object>::New(v8::Handle<v8::Object>::Cast(value));
-}
-
-} // namespace WebCore