Import Dart bindings as of Blink r188698. This merely copies the files over and does not attach any…

sky/engine/bindings-dart/core/dart/DartNativeUtilities.cpp

+// Copyright 2012, 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/core/dart/DartNativeUtilities.h"
+
+#include "bindings/core/dart/DartController.h"
+#include "bindings/core/dart/DartCustomElementConstructorBuilder.h"
+#include "bindings/core/dart/DartCustomElementLifecycleCallbacks.h"
+#include "bindings/core/dart/DartCustomElementWrapper.h"
+#include "bindings/core/dart/DartDOMData.h"
+#include "bindings/core/dart/DartDOMStringMap.h"
+#include "bindings/core/dart/DartDOMWrapper.h"
+#include "bindings/core/dart/DartDocument.h"
+#include "bindings/core/dart/DartElement.h"
+#include "bindings/core/dart/DartHTMLElement.h"
+#include "bindings/core/dart/DartJsInterop.h"
+#include "bindings/core/dart/DartUtilities.h"
+#include "bindings/core/dart/DartWindow.h"
+#include "bindings/core/dart/V8Converter.h"
+#include "bindings/core/v8/ScriptController.h"
+#include "bindings/core/v8/npruntime_impl.h"
+#include "core/dom/Document.h"
+#include "core/dom/custom/CustomElementCallbackDispatcher.h"
+#include "core/dom/custom/CustomElementRegistrationContext.h"
+#include "core/frame/LocalFrame.h"
+#include "core/html/HTMLElement.h"
+#include "platform/RuntimeEnabledFeatures.h"
+
+#include "wtf/HashMap.h"
+#include "wtf/StdLibExtras.h"
+#include "wtf/text/CString.h"
+#include "wtf/text/StringHash.h"
+#include <bindings/npruntime.h>
+#include <dart_api.h>
+
+namespace blink {
+
+namespace DartNativeUtilitiesInternal {
+
+static void topLevelWindow(Dart_NativeArguments args)
+{
+    // Return full LocalDOMWindow implementation (DartDOMWrapper::createWrapper always returns a secure wrapper).
+    LocalDOMWindow* window = DartUtilities::domWindowForCurrentIsolate();
+    DartDOMWrapper::returnToDart<DartWindow>(args, window);
+}
+
+/**
+ * Gadget for testing.
+ *
+ * With DART_FORWARDING_PRINT environment variable set, it invokes dartPrint
+ * JavaScript function on global object to communicate to Dart test framework.
+ */
+static void forwardingPrint(Dart_NativeArguments args)
+{
+    v8::Isolate* v8Isolate = v8::Isolate::GetCurrent();
+    v8::HandleScope v8Scope(v8Isolate);
+    ExecutionContext* scriptExecutionContext = DartUtilities::scriptExecutionContext();
+    ASSERT(scriptExecutionContext);
+
+    DartController* dartController = DartController::retrieve(scriptExecutionContext);
+    if (!dartController)
+        return;
+    LocalFrame* frame = dartController->frame();
+    v8::Handle<v8::Context> v8Context = toV8Context(frame, DOMWrapperWorld::mainWorld());
+    v8::Context::Scope scope(v8Context);
+    v8::TryCatch tryCatch;
+
+    v8::Handle<v8::Value> function = v8Context->Global()->Get(v8::String::NewFromUtf8(v8Isolate, "dartPrint"));
+    if (function.IsEmpty() || !function->IsFunction())
+        return;
+
+    v8::Handle<v8::Value> message = V8Converter::stringToV8(Dart_GetNativeArgument(args, 0));
+    function.As<v8::Function>()->Call(v8Context->Global(), 1, &message);
+}
+
+static void getNewIsolateId(Dart_NativeArguments args)
+{
+    static int isolateId = 0;
+    Dart_SetReturnValue(args, DartUtilities::intToDart(isolateId++));
+}
+
+static void registerElement(Dart_NativeArguments args)
+{
+    DartApiScope dartApiScope;
+    Dart_Handle exception = 0;
+    {
+        ExecutionContext* ALLOW_UNUSED scriptExecutionContext = DartUtilities::scriptExecutionContext();
+        ASSERT(scriptExecutionContext);
+
+        Document* document = DartDocument::toNative(args, 0, exception);
+        if (exception)
+            goto fail;
+
+        DartStringAdapter name = DartUtilities::dartToString(args, 1, exception);
+        if (exception)
+            goto fail;
+
+        Dart_Handle customType = Dart_GetNativeArgument(args, 2);
+        ASSERT(Dart_IsType(customType));
+
+        AtomicString extendsTagName;
+        Dart_Handle extendsArg = Dart_GetNativeArgument(args, 3);
+        if (!Dart_IsNull(extendsArg)) {
+            extendsTagName = DartUtilities::dartToString(extendsArg, exception);
+            if (exception) {
+                goto fail;
+            }
+        }
+
+        CustomElementRegistrationContext* registrationContext = document->registrationContext();
+        if (!registrationContext) {
+            DartExceptionState es;
+            es.throwDOMException(NotSupportedError);
+            exception = es.toDart(args);
+            goto fail;
+        }
+
+        DartScriptState* scriptState = DartUtilities::currentScriptState();
+
+        CustomElementCallbackDispatcher::CallbackDeliveryScope deliveryScope;
+
+        const Dictionary dictionary;
+        DartCustomElementConstructorBuilder constructorBuilder(customType, extendsTagName, scriptState, &dictionary);
+        DartExceptionState es;
+        registrationContext->registerElement(document, &constructorBuilder, name, CustomElement::AllNames, es);
+        if (es.hadException()) {
+            exception = es.toDart(args);
+            goto fail;
+        }
+        return;
+    }
+
+fail:
+    Dart_ThrowException(exception);
+    ASSERT_NOT_REACHED();
+}
+
+// Fast-path for Document.createElement, when typeExtension is not needed.
+void createElement(Dart_NativeArguments args)
+{
+    Dart_Handle exception = 0;
+    {
+        Document* receiver = DartDOMWrapper::receiver< Document >(args);
+
+        DartStringAdapter localName = DartUtilities::dartToString(args, 1, exception);
+        if (exception)
+            goto fail;
+
+        DartExceptionState es;
+        RefPtr<Element> result;
+        {
+            CustomElementCallbackDispatcher::CallbackDeliveryScope deliveryScope;
+
+            result = receiver->createElement(localName, es);
+        }
+        DartElement::returnToDart(args, result);
+        if (es.hadException()) {
+            exception = es.toDart(args);
+            goto fail;
+        }
+        return;
+    }
+
+fail:
+    Dart_ThrowException(exception);
+    ASSERT_NOT_REACHED();
+}
+
+void initializeCustomElement(Dart_NativeArguments args)
+{
+    Dart_Handle exception = 0;
+    {
+        Dart_Handle elementWrapper = Dart_GetNativeArgument(args, 0);
+        if (!DartDOMWrapper::subtypeOf(elementWrapper, DartHTMLElement::dartClassId)) {
+            exception = Dart_NewStringFromCString("created called outside of custom element creation.");
+            goto fail;
+        }
+        DartCustomElementWrapper<HTMLElement>::initializeCustomElement(elementWrapper, exception);
+        if (exception) {
+            goto fail;
+        }
+        return;
+    }
+
+fail:
+    Dart_ThrowException(exception);
+    ASSERT_NOT_REACHED();
+}
+
+void spawnDomUri(Dart_NativeArguments args)
+{
+    Dart_Handle exception = 0;
+
+    {
+        ExecutionContext* scriptExecutionContext = DartUtilities::scriptExecutionContext();
+        ASSERT(scriptExecutionContext);
+        DartController* dartController = DartController::retrieve(scriptExecutionContext);
+        if (!dartController)
+            return;
+
+        DartStringAdapter uri = DartUtilities::dartToString(args, 0, exception);
+        if (exception)
+            goto fail;
+
+        // TODO(vsm): Return isolate future.
+        dartController->spawnDomUri(uri);
+        return;
+    }
+
+fail:
+    Dart_ThrowException(exception);
+    ASSERT_NOT_REACHED();
+}
+
+void changeElementWrapper(Dart_NativeArguments args)
+{
+    Dart_Handle exception = 0;
+    {
+        Dart_Handle elementWrapper = Dart_GetNativeArgument(args, 0);
+        if (!DartDOMWrapper::subtypeOf(elementWrapper, DartHTMLElement::dartClassId)) {
+            exception = Dart_NewStringFromCString("Invalid class: expected instance of HtmlElement");
+            goto fail;
+        }
+
+        Dart_Handle wrapperType = Dart_GetNativeArgument(args, 1);
+        if (!Dart_IsType(wrapperType)) {
+            exception = Dart_NewStringFromCString("Expected instance of Type");
+            goto fail;
+        }
+
+        Dart_Handle newWrapper = DartCustomElementWrapper<HTMLElement>::changeElementWrapper(elementWrapper, wrapperType);
+        if (Dart_IsError(newWrapper)) {
+            exception = newWrapper;
+            goto fail;
+        }
+        Dart_SetReturnValue(args, newWrapper);
+        return;
+    }
+
+fail:
+    Dart_ThrowException(exception);
+    ASSERT_NOT_REACHED();
+}
+
+} // namespace DartNativeUtilitiesInternal
+
+namespace DartWindowInternal {
+
+void historyCrossFrameGetter(Dart_NativeArguments);
+
+void locationCrossFrameGetter(Dart_NativeArguments);
+
+}
+
+extern Dart_NativeFunction blinkSnapshotResolver(Dart_Handle name, int argumentCount, bool* autoSetupScope);
+extern Dart_NativeFunction customDartDOMStringMapResolver(Dart_Handle name, int argumentCount, bool* autoSetupScope);
+
+static DartNativeEntry nativeEntries[] = {
+    { DartNativeUtilitiesInternal::topLevelWindow, 0, "Utils_window" },
+    { DartNativeUtilitiesInternal::forwardingPrint, 1, "Utils_forwardingPrint" },
+    { DartNativeUtilitiesInternal::getNewIsolateId, 0, "Utils_getNewIsolateId" },
+    { DartNativeUtilitiesInternal::registerElement, 4, "Utils_register" },
+    { DartNativeUtilitiesInternal::createElement, 2, "Utils_createElement" },
+    { DartNativeUtilitiesInternal::initializeCustomElement, 1, "Utils_initializeCustomElement" },
+    { DartNativeUtilitiesInternal::changeElementWrapper, 2, "Utils_changeElementWrapper" },
+    { DartNativeUtilitiesInternal::spawnDomUri, 1, "Utils_spawnDomUri" },
+    { DartWindowInternal::historyCrossFrameGetter, 1, "Window_history_cross_frame_Getter" },
+    { DartWindowInternal::locationCrossFrameGetter, 1, "Window_location_cross_frame_Getter" },
+    { 0, 0, 0 },
+};
+
+Dart_NativeFunction domIsolateHtmlResolver(Dart_Handle name, int argumentCount, bool* autoSetupScope)
+{
+    // Some utility functions.
+    if (Dart_NativeFunction func = blinkSnapshotResolver(name, argumentCount, autoSetupScope))
+        return func;
+    if (Dart_NativeFunction func = customDartDOMStringMapResolver(name, argumentCount, autoSetupScope))
+        return func;
+    if (Dart_NativeFunction func = JsInterop::resolver(name, argumentCount, autoSetupScope))
+        return func;
+
+    String str = DartUtilities::toString(name);
+    ASSERT(autoSetupScope);
+    *autoSetupScope = true;
+    for (intptr_t i = 0; nativeEntries[i].nativeFunction != 0; i++) {
+        if (argumentCount == nativeEntries[i].argumentCount && str == nativeEntries[i].name) {
+            return nativeEntries[i].nativeFunction;
+        }
+    }
+    return 0;
+}
+
+extern const uint8_t* blinkSnapshotSymbolizer(Dart_NativeFunction);
+extern const uint8_t* customDartDOMStringMapSymbolizer(Dart_NativeFunction);
+
+const uint8_t* domIsolateHtmlSymbolizer(Dart_NativeFunction nf)
+{
+    const uint8_t* r = 0;
+    r = blinkSnapshotSymbolizer(nf);
+    if (r) {
+        return r;
+    }
+    r = customDartDOMStringMapSymbolizer(nf);
+    if (r) {
+        return r;
+    }
+    r = JsInterop::symbolizer(nf);
+    if (r) {
+        return r;
+    }
+
+    for (intptr_t i = 0; nativeEntries[i].nativeFunction != 0; i++) {
+        if (nf == nativeEntries[i].nativeFunction) {
+            return reinterpret_cast<const uint8_t*>(nativeEntries[i].name);
+        }
+    }
+
+    return 0;
+}
+
+
+}