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authorSteve Block <steveblock@google.com>2011-05-06 11:45:16 +0100
committerSteve Block <steveblock@google.com>2011-05-12 13:44:10 +0100
commitcad810f21b803229eb11403f9209855525a25d57 (patch)
tree29a6fd0279be608e0fe9ffe9841f722f0f4e4269 /Source/WebCore/bridge/runtime_method.cpp
parent121b0cf4517156d0ac5111caf9830c51b69bae8f (diff)
downloadexternal_webkit-cad810f21b803229eb11403f9209855525a25d57.zip
external_webkit-cad810f21b803229eb11403f9209855525a25d57.tar.gz
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Merge WebKit at r75315: Initial merge by git.
Change-Id: I570314b346ce101c935ed22a626b48c2af266b84
Diffstat (limited to 'Source/WebCore/bridge/runtime_method.cpp')
-rw-r--r--Source/WebCore/bridge/runtime_method.cpp128
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+/*
+ * Copyright (C) 2003, 2008 Apple 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:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``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 APPLE COMPUTER, INC. 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 "runtime_method.h"
+
+#include "JSDOMBinding.h"
+#include "JSHTMLElement.h"
+#include "JSPluginElementFunctions.h"
+#include "runtime_object.h"
+#include <runtime/Error.h>
+#include <runtime/FunctionPrototype.h>
+
+using namespace WebCore;
+
+namespace JSC {
+
+using namespace Bindings;
+
+ASSERT_CLASS_FITS_IN_CELL(RuntimeMethod);
+
+const ClassInfo RuntimeMethod::s_info = { "RuntimeMethod", &InternalFunction::info, 0, 0 };
+
+RuntimeMethod::RuntimeMethod(ExecState* exec, JSGlobalObject* globalObject, const Identifier& ident, Bindings::MethodList& m)
+ // FIXME: deprecatedGetDOMStructure uses the prototype off of the wrong global object
+ // exec-globalData() is also likely wrong.
+ // Callers will need to pass in the right global object corresponding to this native object "m".
+ : InternalFunction(&exec->globalData(), globalObject, deprecatedGetDOMStructure<RuntimeMethod>(exec), ident)
+ , _methodList(new MethodList(m))
+{
+}
+
+JSValue RuntimeMethod::lengthGetter(ExecState*, JSValue slotBase, const Identifier&)
+{
+ RuntimeMethod* thisObj = static_cast<RuntimeMethod*>(asObject(slotBase));
+
+ // Ick! There may be more than one method with this name. Arbitrarily
+ // just pick the first method. The fundamental problem here is that
+ // JavaScript doesn't have the notion of method overloading and
+ // Java does.
+ // FIXME: a better solution might be to give the maximum number of parameters
+ // of any method
+ return jsNumber(thisObj->_methodList->at(0)->numParameters());
+}
+
+bool RuntimeMethod::getOwnPropertySlot(ExecState* exec, const Identifier& propertyName, PropertySlot &slot)
+{
+ if (propertyName == exec->propertyNames().length) {
+ slot.setCacheableCustom(this, lengthGetter);
+ return true;
+ }
+
+ return InternalFunction::getOwnPropertySlot(exec, propertyName, slot);
+}
+
+bool RuntimeMethod::getOwnPropertyDescriptor(ExecState* exec, const Identifier& propertyName, PropertyDescriptor &descriptor)
+{
+ if (propertyName == exec->propertyNames().length) {
+ PropertySlot slot;
+ slot.setCustom(this, lengthGetter);
+ descriptor.setDescriptor(slot.getValue(exec, propertyName), ReadOnly | DontDelete | DontEnum);
+ return true;
+ }
+
+ return InternalFunction::getOwnPropertyDescriptor(exec, propertyName, descriptor);
+}
+
+static EncodedJSValue JSC_HOST_CALL callRuntimeMethod(ExecState* exec)
+{
+ RuntimeMethod* method = static_cast<RuntimeMethod*>(exec->callee());
+
+ if (method->methods()->isEmpty())
+ return JSValue::encode(jsUndefined());
+
+ RefPtr<Instance> instance;
+
+ JSValue thisValue = exec->hostThisValue();
+ if (thisValue.inherits(&RuntimeObject::s_info)) {
+ RuntimeObject* runtimeObject = static_cast<RuntimeObject*>(asObject(thisValue));
+ instance = runtimeObject->getInternalInstance();
+ if (!instance)
+ return JSValue::encode(RuntimeObject::throwInvalidAccessError(exec));
+ } else {
+ // Calling a runtime object of a plugin element?
+ if (thisValue.inherits(&JSHTMLElement::s_info)) {
+ HTMLElement* element = static_cast<JSHTMLElement*>(asObject(thisValue))->impl();
+ instance = pluginInstance(element);
+ }
+ if (!instance)
+ return throwVMTypeError(exec);
+ }
+ ASSERT(instance);
+
+ instance->begin();
+ JSValue result = instance->invokeMethod(exec, method);
+ instance->end();
+ return JSValue::encode(result);
+}
+
+CallType RuntimeMethod::getCallData(CallData& callData)
+{
+ callData.native.function = callRuntimeMethod;
+ return CallTypeHost;
+}
+
+}