| /* |
| * Copyright (C) 2013 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/DartJsInterop.h" |
| |
| #include "bindings/core/dart/DartDOMWrapper.h" |
| #include "bindings/core/dart/DartHandleProxy.h" |
| #include "bindings/core/dart/DartJsInteropData.h" |
| #include "bindings/core/dart/DartPersistentValue.h" |
| #include "bindings/core/dart/DartUtilities.h" |
| #include "bindings/core/dart/V8Converter.h" |
| #include "bindings/core/v8/V8Binding.h" |
| #include "bindings/core/v8/V8Element.h" |
| #include "bindings/core/v8/V8RecursionScope.h" |
| #include "bindings/core/v8/V8ScriptRunner.h" |
| #include "core/dom/Element.h" |
| |
| #include "wtf/StdLibExtras.h" |
| |
| #include <dart_api.h> |
| #include <limits> |
| |
| namespace blink { |
| |
| const int JsObject::dartClassId = _JsObjectClassId; |
| const int JsFunction::dartClassId = _JsFunctionClassId; |
| const int JsArray::dartClassId = _JsArrayClassId; |
| |
| // TODO(jacobr): v8::String::NewFromUtf8 usages should be cached for constant |
| // strings to improve performance. |
| /** |
| * Polyfill script to make Dart List objects look like JavaScript arrays when |
| * passed to JavaScript via JavaScript interop. Handling the edge cases |
| * requires patching the JavaScript Array prototype for a couple methods |
| * and implementing all of the JavaScript Array methods on the JavaScript |
| * proxy object for the Dart List. Some of the JavaScript methods are |
| * implemented in Dart and C++ code, some are implemented in this JavaScript |
| * polyfill script. |
| */ |
| const char* dartArrayPolyfill = |
| "(function() {" |
| // If filter has already been defined on the DartList prototype, |
| // another DOM isolate has beaten us to polyfilling. |
| " if ($DartList.prototype.hasOwnProperty('filter')) return;" |
| // This hack is required so that someDartList instanceof Array == true. |
| " $DartList.prototype.__proto__ = Array.prototype;" |
| " $DartList.__proto__ = Array;" |
| // This hack is required for libraries such as jQuery that detect arrays |
| // by looking at the constructor property treat $DartList as Array. |
| " $DartList.prototype.constructor = Array;" |
| " var isArray = Array.isArray;" |
| " var concat = Array.prototype.concat;" |
| " var blob = Blob;" |
| " function makeSafeArg(arg) {" |
| " return (arg instanceof $DartList) ? arg.$toJsArray() : arg;" |
| " };" |
| " function makeSafeArgs(args) {" |
| " var len = args.length;" |
| " for (var i = 0; i < len; ++i) {" |
| " var arg = args[i];" |
| " if (arg instanceof $DartList) {" |
| " args[i] = arg.$toJsArray();" |
| " }" |
| " }" |
| " };" |
| |
| // If performance becomes an issue, we could implement these |
| // methods in Dart instead of creating a shallow copy JavaScript |
| // array containing the elements of the Dart List and calling |
| // the JavaScript method. |
| |
| // Handle methods that take a callback with value, index, and thisArg |
| // parameters. The trick is we need to make thisArg reference the |
| // underlying Dart List rather than the JavaScript copy we create for |
| // implementation convenience. |
| " ['filter', 'forEach', 'some', 'every', 'map'].forEach(function(name) {" |
| " Object.defineProperty($DartList.prototype, name, {enumerable: false, value: function(callback, thisArg) {" |
| " var dartList = this;" |
| " return this.$toJsArray()[name](function(value, index) {" |
| " return callback.call(thisArg, value, index, dartList);" |
| " });" |
| " }});" |
| " });" |
| |
| " ['slice', 'indexOf', 'lastIndexOf'].forEach(function(name) {" |
| " Object.defineProperty($DartList.prototype, name, {enumerable: false, value: function() {" |
| " var jsArray = this.$toJsArray();" |
| " return jsArray[name].apply(jsArray, arguments);" |
| " }});" |
| " });" |
| |
| " ['reduce', 'reduceRight'].forEach(function(name) {" |
| " Object.defineProperty($DartList.prototype, name, {enumerable: false, value: function(callback, thisArg) {" |
| " var dartList = this;" |
| " return this.$toJsArray()[name](function(previousValue, currentValue, index) {" |
| " return callback.call(thisArg, previousValue, currentValue, index, dartList);" |
| " });" |
| " }});" |
| " });" |
| |
| // Arguments to concat that are Arrays are treated differently. |
| // Warning: this will slow down general JavaScript array concat performance in Dartium. |
| " Array.prototype.concat = function() {" |
| " makeSafeArgs(arguments);" |
| " return concat.apply(this, arguments);" |
| " };" |
| |
| // The Blob constructor cannot handle our psuedo Arrays. |
| // Warning: this will slow down general Blob constructor performance in Dartium. |
| " Blob = function(array, options) {" |
| " if (arguments.length < 2) return new blob(makeSafeArg(array));" |
| " else return new blob(makeSafeArg(array), options);" |
| " };" |
| |
| // Need to make sure that Array.isArray returns true for Dart lists. |
| " Array.isArray = function(arr) {" |
| " return isArray(arr) || (arr instanceof $DartList);" |
| " };" |
| "})();"; |
| |
| static v8::Local<v8::FunctionTemplate> dartFunctionTemplate(); |
| static v8::Local<v8::FunctionTemplate> dartFunctionTemplateNoWrap(); |
| static v8::Local<v8::FunctionTemplate> dartObjectTemplate(); |
| static v8::Local<v8::FunctionTemplate> dartListTemplate(); |
| |
| // TODO(jacobr): we should really be using this method everywhere instead of |
| // sticking interop methods in the dart:html _Utils class. |
| static Dart_Handle invokeTopLevelJsInteropMethod(DartDOMData* domData, const char* methodName, int argCount, Dart_Handle* args) |
| { |
| Dart_PersistentHandle library = domData->jsLibrary(); |
| ASSERT(!Dart_IsError(library)); |
| return Dart_Invoke(library, Dart_NewStringFromCString(methodName), argCount, args); |
| } |
| |
| template<typename CallbackInfo> |
| void setJsReturnValue(DartDOMData* domData, CallbackInfo info, Dart_Handle result) |
| { |
| if (Dart_IsError(result)) { |
| v8::Isolate* v8Isolate = v8::Isolate::GetCurrent(); |
| V8ThrowException::throwException(v8::String::NewFromUtf8(v8Isolate, Dart_GetError(result)), v8Isolate); |
| } else { |
| Dart_Handle exception = 0; |
| v8::Local<v8::Value> ret = JsInterop::fromDart(domData, result, exception); |
| if (exception) { |
| V8ThrowException::throwException(V8Converter::stringToV8(Dart_ToString(exception)), v8::Isolate::GetCurrent()); |
| return; |
| } |
| v8SetReturnValue(info, ret); |
| } |
| } |
| |
| static void functionInvocationCallback(const v8::FunctionCallbackInfo<v8::Value>& args) |
| { |
| DartScopes scopes(args.Holder()); |
| Dart_Handle handle = scopes.handle; |
| DartDOMData* domData = DartDOMData::current(); |
| ASSERT(domData); |
| ASSERT(DartUtilities::isFunction(domData, handle)); |
| |
| Vector<Dart_Handle> dartFunctionArgs; |
| ASSERT(args.Length() == 1 || args.Length() == 2); |
| // If there is 1 argument, we assume it is a v8:Array or arguments, if |
| // there are 2 arguments, the first argument is "this" and the second |
| // argument is an array of arguments. |
| if (args.Length() > 1) { |
| dartFunctionArgs.append(JsInterop::toDart(args[0], true)); |
| } |
| |
| v8::Local<v8::Array> argsList = args[args.Length()-1].As<v8::Array>(); |
| uint32_t argsListLength = argsList->Length(); |
| for (uint32_t i = 0; i < argsListLength; i++) { |
| dartFunctionArgs.append(JsInterop::toDart(argsList->Get(i), true)); |
| } |
| |
| setJsReturnValue(domData, args, Dart_InvokeClosure(handle, dartFunctionArgs.size(), dartFunctionArgs.data())); |
| } |
| |
| static void functionInvocationCallbackNoWrap(const v8::FunctionCallbackInfo<v8::Value>& args) |
| { |
| DartScopes scopes(args.Holder()); |
| Dart_Handle handle = scopes.handle; |
| DartDOMData* domData = DartDOMData::current(); |
| ASSERT(domData); |
| ASSERT(DartUtilities::isFunction(domData, handle)); |
| |
| Vector<Dart_Handle> dartFunctionArgs; |
| ASSERT(args.Length() == 1 || args.Length() == 2); |
| // If there is 1 argument, we assume it is a v8:Array or arguments, if |
| // there are 2 arguments, the first argument is "this" and the second |
| // argument is an array of arguments. |
| if (args.Length() > 1) { |
| dartFunctionArgs.append(JsInterop::toDart(args[0], false)); |
| } |
| |
| v8::Local<v8::Array> argsList = args[args.Length()-1].As<v8::Array>(); |
| uint32_t argsListLength = argsList->Length(); |
| for (uint32_t i = 0; i < argsListLength; i++) { |
| dartFunctionArgs.append(JsInterop::toDart(argsList->Get(i), false)); |
| } |
| |
| setJsReturnValue(domData, args, Dart_InvokeClosure(handle, dartFunctionArgs.size(), dartFunctionArgs.data())); |
| } |
| static v8::Local<v8::ObjectTemplate> setupInstanceTemplate(v8::Local<v8::FunctionTemplate> proxyTemplate) |
| { |
| v8::Local<v8::ObjectTemplate> instanceTemplate = proxyTemplate->InstanceTemplate(); |
| instanceTemplate->SetInternalFieldCount(1); |
| return instanceTemplate; |
| } |
| |
| |
| static v8::Local<v8::FunctionTemplate> dartFunctionTemplate() |
| { |
| DEFINE_STATIC_LOCAL(v8::Persistent<v8::FunctionTemplate>, proxyTemplate, ()); |
| v8::Local<v8::FunctionTemplate> proxyTemplateLocal; |
| v8::Isolate* v8Isolate = v8::Isolate::GetCurrent(); |
| if (proxyTemplate.IsEmpty()) { |
| proxyTemplate.Reset(v8::Isolate::GetCurrent(), v8::FunctionTemplate::New(v8Isolate)); |
| proxyTemplateLocal = v8::Local<v8::FunctionTemplate>::New(v8Isolate, proxyTemplate); |
| v8::Local<v8::ObjectTemplate> instanceTemplate = setupInstanceTemplate(proxyTemplateLocal); |
| |
| instanceTemplate->SetCallAsFunctionHandler(&functionInvocationCallback); |
| } else { |
| proxyTemplateLocal = v8::Local<v8::FunctionTemplate>::New(v8Isolate, proxyTemplate); |
| } |
| return proxyTemplateLocal; |
| } |
| |
| static v8::Local<v8::FunctionTemplate> dartFunctionTemplateNoWrap() |
| { |
| DEFINE_STATIC_LOCAL(v8::Persistent<v8::FunctionTemplate>, proxyTemplate, ()); |
| v8::Local<v8::FunctionTemplate> proxyTemplateLocal; |
| v8::Isolate* v8Isolate = v8::Isolate::GetCurrent(); |
| if (proxyTemplate.IsEmpty()) { |
| proxyTemplate.Reset(v8::Isolate::GetCurrent(), v8::FunctionTemplate::New(v8Isolate)); |
| proxyTemplateLocal = v8::Local<v8::FunctionTemplate>::New(v8Isolate, proxyTemplate); |
| v8::Local<v8::ObjectTemplate> instanceTemplate = setupInstanceTemplate(proxyTemplateLocal); |
| |
| instanceTemplate->SetCallAsFunctionHandler(&functionInvocationCallbackNoWrap); |
| } else { |
| proxyTemplateLocal = v8::Local<v8::FunctionTemplate>::New(v8Isolate, proxyTemplate); |
| } |
| return proxyTemplateLocal; |
| } |
| |
| /** |
| * Helper class to manage scopes needed for JSInterop code. |
| */ |
| class JsInteropScopes { |
| public: |
| Dart_NativeArguments args; |
| v8::Context::Scope v8Scope; |
| v8::TryCatch tryCatch; |
| |
| JsInteropScopes(Dart_NativeArguments args) |
| : args(args) |
| , v8Scope(DartUtilities::currentV8Context()) |
| { |
| ASSERT(v8::Isolate::GetCurrent()); |
| } |
| |
| ~JsInteropScopes() |
| { |
| // The user is expected to call handleJsException before the scope is |
| // closed so that V8 exceptions are properly sent back to Dart. |
| ASSERT(!tryCatch.HasCaught()); |
| } |
| |
| bool handleJsException(Dart_Handle* exception) |
| { |
| if (!tryCatch.HasCaught()) |
| return false; |
| // FIXME: terminate v8 if tryCatch.CanContinue() is false. |
| ASSERT(tryCatch.CanContinue()); |
| ASSERT(exception); |
| v8::Handle<v8::Value> ex(tryCatch.Exception()->ToString()); |
| if (ex.IsEmpty()) { |
| *exception = Dart_NewStringFromCString("Empty JavaScript exception"); |
| } else { |
| *exception = V8Converter::stringToDart(ex); |
| } |
| tryCatch.Reset(); |
| return true; |
| } |
| |
| void setReturnValue(Dart_Handle ret) |
| { |
| ASSERT(!tryCatch.HasCaught()); |
| Dart_SetReturnValue(args, ret); |
| } |
| |
| void setReturnValue(v8::Local<v8::Value> ret) |
| { |
| ASSERT(!tryCatch.HasCaught()); |
| Dart_SetReturnValue(args, JsInterop::toDart(ret, false)); |
| ASSERT(!tryCatch.HasCaught()); |
| } |
| |
| void setReturnValueInteger(int64_t ret) |
| { |
| ASSERT(!tryCatch.HasCaught()); |
| Dart_SetIntegerReturnValue(args, ret); |
| } |
| }; |
| |
| PassRefPtr<JsObject> JsObject::create(v8::Local<v8::Object> v8Handle) |
| { |
| return adoptRef(new JsObject(v8Handle)); |
| } |
| |
| v8::Local<v8::Value> JsInterop::fromDart(DartDOMData* domData, Dart_Handle handle, Dart_Handle& exception) |
| { |
| v8::Handle<v8::Value> value = V8Converter::toV8IfPrimitive(domData, handle, exception); |
| if (!value.IsEmpty() || exception) |
| return value; |
| |
| Dart_Handle jso = invokeTopLevelJsInteropMethod(domData, "unwrap_jso", 1, &handle); |
| ASSERT(!Dart_IsError(jso)); |
| if (DartDOMWrapper::subtypeOf(jso, JsObject::dartClassId)) { |
| JsObject* object = DartDOMWrapper::unwrapDartWrapper<JsObject>(domData, jso, exception); |
| if (exception) |
| return v8::Local<v8::Value>(); |
| return object->localV8Object(); |
| } |
| // TODO(terry): START of uncommented block by Jacob, I've re-enabled for clamped arrays... |
| value = V8Converter::toV8IfBrowserNative(domData, handle, exception); |
| if (!value.IsEmpty() || exception) |
| return value; |
| |
| if (DartUtilities::isFunction(domData, handle)) { |
| v8::Local<v8::Object> functionProxy = dartFunctionTemplate()->InstanceTemplate()->NewInstance(); |
| DartHandleProxy::writePointerToProxy(functionProxy, handle); |
| // The raw functionProxy doesn't behave enough like a true JS function |
| // so we wrap it in a true JS function. |
| return domData->jsInteropData()->wrapDartFunction()->Call(functionProxy, 0, 0); |
| } |
| |
| v8::Local<v8::Object> proxy; |
| ASSERT(Dart_IsInstance(handle)); |
| // Simulate the behavior of the Dart dev compiler where new List() is |
| // equivalent to a JavaScript array. We accomplish this by creating a |
| // JavaScript object that fakes that it is a JavaScript array but is |
| // actually backed by a Dart list. This is not a breaking change as |
| // existing Dart-JS interop passed arrays as opaque Dart handles. |
| // The jsify method can still be called if you wish to create a copy |
| // of a json like Dart data structure. |
| if (Dart_IsList(handle)) { |
| proxy = dartListTemplate()->InstanceTemplate()->NewInstance(); |
| } else { |
| proxy = dartObjectTemplate()->InstanceTemplate()->NewInstance(); |
| } |
| DartHandleProxy::writePointerToProxy(proxy, handle); |
| v8::Isolate* v8Isolate = v8::Isolate::GetCurrent(); |
| proxy->SetHiddenValue(v8::String::NewFromUtf8(v8Isolate, "dartProxy"), v8::Boolean::New(v8Isolate, true)); |
| |
| return proxy; |
| } |
| |
| // Given a Blink Element instance, make it a V8Object that can then be returned |
| // as a Dart JsObject that holds the Javascript object (V8Object). |
| void JsInterop::returnBlinkElement(Element* value, Dart_NativeArguments args, Dart_Handle& exception) |
| { |
| JsInteropScopes scopes(args); |
| |
| ScriptState* state = DartUtilities::v8ScriptStateForCurrentIsolate(); |
| |
| // This is calling blink::Element::toV8(Element*,...) to return a V8Object from |
| // the Blink Element. |
| v8::Handle<v8::Value> v8Value = toV8(value, state->context()->Global(), state->isolate()); |
| v8::Local<v8::Object> v8Handle = v8Value.As<v8::Object>(); |
| |
| // Return a Dart JsObject that wraps Element * back to the Dart return value. |
| scopes.setReturnValue(v8Handle); |
| } |
| |
| // Given a Blink Element instance, make it a V8Object that can then be returned |
| // as a Dart JsObject that holds the Javascript object (V8Object). |
| v8::Local<v8::Object> JsInterop::blinkElement(Element* value, Dart_Handle& exception) |
| { |
| ScriptState* state = DartUtilities::v8ScriptStateForCurrentIsolate(); |
| |
| // This is calling blink::Element::toV8(Element*,...) to return a V8Object from |
| // the Blink Element. |
| v8::Handle<v8::Value> v8Value = toV8(value, state->context()->Global(), state->isolate()); |
| v8::Local<v8::Object> v8Handle = v8Value.As<v8::Object>(); |
| return v8Handle; |
| } |
| |
| JsObject::JsObject(v8::Local<v8::Object> v8Handle) |
| { |
| v8::Isolate* isolate = v8::Isolate::GetCurrent(); |
| v8::Persistent<v8::Object> persistentHandle; |
| v8Object.Reset(isolate, v8Handle); |
| } |
| |
| v8::Local<v8::Object> JsObject::localV8Object() |
| { |
| return v8::Local<v8::Object>::New(v8::Isolate::GetCurrent(), v8Object); |
| } |
| |
| Dart_Handle JsInterop::toDart(v8::Local<v8::Value> v8Handle, bool sometimesUseHtml) |
| { |
| Dart_Handle handle = V8Converter::toDartIfPrimitive(v8Handle); |
| if (handle) |
| return handle; |
| |
| ASSERT(v8Handle->IsObject()); |
| v8::Handle<v8::Object> object = v8Handle.As<v8::Object>(); |
| // TODO(terry): START of uncommented block by Jacob, I've re-enabled for clamped arrays... |
| Dart_Handle exception = 0; |
| handle = V8Converter::toDartIfBrowserNative(object, object->CreationContext()->GetIsolate(), exception); |
| ASSERT(!exception); |
| if (handle) |
| return handle; |
| // TODO(terry): END of uncommented block by Jacob. |
| // Unwrap objects passed from Dart to JS that are being passed back to |
| // Dart. FIXME: we do not yet handle unwrapping JS functions passed |
| // from Dart to JS as we have to wrap them with true JS Function objects. |
| // If this use case is important we can support it at the cost of hanging |
| // an extra expando off the JS function wrapping the Dart function. |
| if (DartHandleProxy::isDartProxy(v8Handle)) { |
| DartPersistentValue* scriptValue = DartHandleProxy::readPointerFromProxy(v8Handle); |
| ASSERT(scriptValue->isIsolateAlive()); |
| // If the isolate does not match we fall back to using the existing JS |
| // wrapper for the Dart object so that simple cases that would work in |
| // Dart2Js work. We could alternately throw an exception here. |
| if (scriptValue->isolate() == Dart_CurrentIsolate()) { |
| return scriptValue->value(); |
| } |
| } |
| |
| return JsObject::toDart(object, sometimesUseHtml); |
| } |
| |
| Dart_Handle JsObject::toDart(v8::Local<v8::Object> object, bool sometimesUseHtml) |
| { |
| Dart_Handle wrapper; |
| v8::Isolate* v8Isolate = v8::Isolate::GetCurrent(); |
| DartDOMData* domData = DartDOMData::current(); |
| DartJsInteropData* interopData = domData->jsInteropData(); |
| v8::Local<v8::String> existingDartWrapperKey = interopData->existingDartWrapperHiddenField(v8Isolate); |
| |
| // TODO(alanknight): This will fail for multiple isolates referencing the same JS object. |
| // We probably need to use a different property name for different isolates. |
| v8::Local<v8::Value> hiddenValue = object->GetHiddenValue(existingDartWrapperKey); |
| |
| if (*hiddenValue && hiddenValue->IsObject()) { |
| DartPersistentValue* scriptValue = DartHandleProxy::readPointerFromProxy(hiddenValue.As<v8::Object>()); |
| ASSERT(scriptValue->isIsolateAlive()); |
| // If the isolate does not match we fall back to using the existing JS |
| // wrapper for the Dart object so that simple cases that would work in |
| // Dart2Js work. We could alternately throw an exception here. |
| if (scriptValue->isolate() == Dart_CurrentIsolate()) { |
| Dart_Handle wrapper = scriptValue->value(); |
| if (sometimesUseHtml) { |
| wrapper = invokeTopLevelJsInteropMethod(domData, "_maybeWrap", 1, &wrapper); |
| } |
| return wrapper; |
| } |
| } |
| |
| Dart_Handle ret = 0; |
| if (object->IsFunction()) { |
| RefPtr<JsFunction> jsFunction = JsFunction::create(object.As<v8::Function>()); |
| wrapper = JsFunction::toDart(jsFunction); |
| } else if (object->IsArray() |
| // Check for Dart List objects from different Dart isolates. |
| // In dart2js the List from a different isolate would just be a regular |
| // JS Array so it can be treated as a JS Array. |
| || dartListTemplate()->HasInstance(object)) { |
| RefPtr<JsArray> jsArray = JsArray::create(object); |
| wrapper = JsArray::toDart(jsArray); |
| } else { |
| RefPtr<JsObject> jsObject = JsObject::create(object); |
| wrapper = JsObject::toDart(jsObject); |
| if (sometimesUseHtml) { |
| ret = invokeTopLevelJsInteropMethod(DartDOMData::current(), "_maybeWrap", 1, &wrapper); |
| } |
| } |
| |
| v8::Local<v8::Object> proxy; |
| |
| // Prevent creation of cross frame dart:html objects for classes other than Window. |
| // Verify that the object is from the same context using the same check |
| // we used to use in V8Converter. |
| if (!object->CreationContext()->Global()->StrictEquals(DartUtilities::currentV8Context()->Global())) { |
| // Short circuit creating dart:html wrappers for cross frame objects |
| // other than window. |
| // TODO(jacobr): handle cross frame Window objects differently to more |
| // exactly match existing dart:html semantics. |
| if (!object->CreationContext()->Global()->StrictEquals(object)) { |
| Dart_SetField(wrapper, Dart_NewStringFromCString("_dartHtmlWrapper"), wrapper); |
| } |
| } |
| ASSERT(Dart_IsInstance(wrapper)); |
| // Simulate the behavior of the Dart dev compiler where new List() is |
| // equivalent to a JavaScript array. We accomplish this by creating a |
| // JavaScript object that fakes that it is a JavaScript array but is |
| // actually backed by a Dart list. This is not a breaking change as |
| // existing Dart-JS interop passed arrays as opaque Dart handles. |
| // The jsify method can still be called if you wish to create a copy |
| // of a json like Dart data structure. |
| proxy = dartObjectTemplate()->InstanceTemplate()->NewInstance(); |
| DartHandleProxy::writePointerToProxy(proxy, wrapper); |
| object->SetHiddenValue(existingDartWrapperKey, proxy); |
| return ret != 0 ? ret : wrapper; |
| } |
| |
| void JsInterop::buildInteropPatchFiles(DartDOMData* domData, Vector<InteropPatchFile>* patches, Dart_Handle& exception) |
| { |
| // Build patch files implementing all external methods specified with new |
| // style JS interop and JsObjectImpl, JsFunctionImpl, and JsArrayImpl |
| // classes that implement all Dart types annoted with @Js. |
| // The sole purpose of these classes is to ensure that checked mode |
| // allows casting a JsObject to all types implemented by a JsObject. |
| Dart_Handle externals = invokeTopLevelJsInteropMethod(domData, "_generateInteropPatchFiles", 0, 0); |
| if (Dart_IsError(externals)) { |
| exception = externals; |
| return; |
| } |
| ASSERT(Dart_IsList(externals)); |
| intptr_t externalsLength = 0; |
| Dart_ListLength(externals, &externalsLength); |
| ASSERT(externalsLength % 3 == 0); |
| |
| for (intptr_t i = 0; i < externalsLength; i += 3) { |
| InteropPatchFile patch; |
| |
| Dart_Handle libraryUri = Dart_ListGetAt(externals, i); |
| Dart_Handle patchFileUri = Dart_ListGetAt(externals, i + 1); |
| Dart_Handle source = Dart_ListGetAt(externals, i + 2); |
| ASSERT(Dart_IsString(libraryUri)); |
| ASSERT(Dart_IsString(patchFileUri)); |
| ASSERT(Dart_IsString(source)); |
| patch.libraryUri = DartUtilities::toString(libraryUri); |
| patch.patchFileUri = DartUtilities::toString(patchFileUri); |
| patch.source = DartUtilities::toString(source); |
| patches->append(patch); |
| } |
| } |
| |
| void JsInterop::initializeJsInterop(DartDOMData* domData, const Vector<InteropPatchFile>& patches, Dart_Handle& exception) |
| { |
| DartJsInteropData* interopData = domData->jsInteropData(); |
| // Skip if the JSObjectImpl class has already been defined. |
| if (interopData->jsObjectImplDefined()) { |
| return; |
| } |
| // Helper method that generates boilerplate source code for |
| // JsObjectImpl, JsFunctionImpl, and JsArrayImpl classes that implement |
| // all Dart types that have been passed to the dart:js registerJsInterfaces |
| // method. The sole purpose of these classes is to ensure that checked mode |
| // allows casting a JsObject to all types implemented by a JsObject. |
| |
| Dart_Handle ret; |
| for (size_t i = 0; i < patches.size(); ++i) { |
| const InteropPatchFile& patch = patches[i]; |
| Dart_Handle library = Dart_LookupLibrary(DartUtilities::safeStringToDartString(patch.libraryUri)); |
| ASSERT(Dart_IsLibrary(library)); |
| Dart_Handle patchFileUri = DartUtilities::safeStringToDartString(patch.patchFileUri); |
| Dart_Handle source = DartUtilities::safeStringToDartString(patch.source); |
| ret = Dart_LibraryLoadPatch(library, patchFileUri, source); |
| if (Dart_IsError(ret)) { |
| exception = ret; |
| return; |
| } |
| } |
| ret = Dart_FinalizeLoading(false); |
| if (Dart_IsError(ret)) { |
| exception = ret; |
| return; |
| } |
| |
| interopData->setJsObjectImplDefined(); |
| |
| if (domData->isDOMEnabled()) { |
| // Start of polyfill work to make Dart List proxies behave like JavaScript |
| // Arrays by monkey patching JavaScript Array and the List JavaScript |
| // proxies as needed. |
| v8::Context::Scope scope(DartUtilities::currentV8Context()); |
| |
| v8::Isolate* v8Isolate = v8::Isolate::GetCurrent(); |
| |
| v8::Local<v8::Function> dartArrayConstructor = dartListTemplate()->GetFunction(); |
| |
| DartUtilities::currentV8Context()->Global()->Set(v8::String::NewFromUtf8(v8Isolate, "$DartList"), |
| dartArrayConstructor); |
| V8ScriptRunner::compileAndRunInternalScript(v8::String::NewFromUtf8(v8Isolate, dartArrayPolyfill), v8Isolate); |
| |
| ret = Dart_Invoke(domData->jsLibrary(), Dart_NewStringFromCString("_registerAllJsInterfaces"), 0, 0); |
| if (Dart_IsError(ret)) { |
| exception = ret; |
| return; |
| } |
| } |
| } |
| |
| Dart_Handle JsObject::toDart(PassRefPtr<JsObject> jsObject) |
| { |
| DartDOMData* domData = DartDOMData::current(); |
| // We need to ensure JsObjectImpl exists before creating the wrapper. |
| return DartDOMWrapper::createWrapper<JsObject>(domData, jsObject.get(), JsObject::dartClassId); |
| } |
| |
| JsObject::~JsObject() |
| { |
| v8Object.Reset(); |
| } |
| |
| Dart_Handle JsFunction::toDart(PassRefPtr<JsFunction> jsFunction) |
| { |
| DartDOMData* domData = DartDOMData::current(); |
| // We need to ensure JsObjectImpl exists before creating the wrapper. |
| return DartDOMWrapper::createWrapper<JsFunction>(domData, jsFunction.get(), JsFunction::dartClassId); |
| } |
| |
| JsFunction::JsFunction(v8::Local<v8::Function> v8Handle) : JsObject(v8Handle) { } |
| |
| PassRefPtr<JsFunction> JsFunction::create(v8::Local<v8::Function> v8Handle) |
| { |
| return adoptRef(new JsFunction(v8Handle)); |
| } |
| |
| v8::Local<v8::Function> JsFunction::localV8Function() |
| { |
| return localV8Object().As<v8::Function>(); |
| } |
| |
| Dart_Handle JsArray::toDart(PassRefPtr<JsArray> jsArray) |
| { |
| DartDOMData* domData = DartDOMData::current(); |
| // We need to ensure JsArrayImpl exists before creating the wrapper. |
| return DartDOMWrapper::createWrapper<JsArray>(domData, jsArray.get(), JsArray::dartClassId); |
| } |
| |
| JsArray::JsArray(v8::Local<v8::Object> v8Handle) : JsObject(v8Handle) { } |
| |
| PassRefPtr<JsArray> JsArray::create(v8::Local<v8::Object> v8Handle) |
| { |
| return adoptRef(new JsArray(v8Handle)); |
| } |
| |
| namespace JsInteropInternal { |
| |
| typedef HashMap<Dart_Handle, v8::Handle<v8::Value> > DartHandleToV8Map; |
| v8::Handle<v8::Value> jsifyHelper(DartDOMData*, Dart_Handle value, DartHandleToV8Map&, Dart_Handle& exception); |
| |
| void argsListToV8(DartDOMData* domData, Dart_Handle args, Vector<v8::Local<v8::Value> >* v8Args, Dart_Handle& exception) |
| { |
| if (Dart_IsNull(args)) |
| return; |
| |
| if (!Dart_IsList(args)) { |
| exception = Dart_NewStringFromCString("args not type list"); |
| return; |
| } |
| |
| intptr_t argsLength = 0; |
| Dart_ListLength(args, &argsLength); |
| for (intptr_t i = 0; i < argsLength; i++) { |
| v8Args->append(JsInterop::fromDart(domData, Dart_ListGetAt(args, i), exception)); |
| if (exception) |
| return; |
| } |
| } |
| |
| void argsListToV8DebuggerOnly(DartDOMData* domData, Dart_Handle args, Vector<v8::Local<v8::Value> >* v8Args, Dart_Handle& exception) |
| { |
| if (Dart_IsNull(args)) |
| return; |
| |
| if (!Dart_IsList(args)) { |
| exception = Dart_NewStringFromCString("args not type list"); |
| return; |
| } |
| |
| intptr_t argsLength = 0; |
| Dart_ListLength(args, &argsLength); |
| for (intptr_t i = 0; i < argsLength; i++) { |
| v8Args->append(DartHandleProxy::create(Dart_ListGetAt(args, i))); |
| } |
| } |
| |
| static void jsObjectConstructorCallback(Dart_NativeArguments args) |
| { |
| Dart_Handle exception = 0; |
| { |
| JsInteropScopes scopes(args); |
| DartDOMData* domData = static_cast<DartDOMData*>(Dart_GetNativeIsolateData(args)); |
| v8::Local<v8::Value> constructorArg = JsInterop::fromDart(domData, Dart_GetNativeArgument(args, 0), exception); |
| if (exception) |
| goto fail; |
| |
| if (!constructorArg->IsFunction()) { |
| exception = Dart_NewStringFromCString("constructor not a function"); |
| goto fail; |
| } |
| |
| Vector<v8::Local<v8::Value> > v8Args; |
| argsListToV8(domData, Dart_GetNativeArgument(args, 1), &v8Args, exception); |
| |
| v8::Local<v8::Value> ret = constructorArg.As<v8::Function>()->CallAsConstructor(v8Args.size(), v8Args.data()); |
| crashIfV8IsDead(); |
| |
| if (scopes.handleJsException(&exception)) |
| goto fail; |
| |
| // Intentionally skip auto-conversion in this case as the user expects |
| // a JSObject. FIXME: evaluate if this is the right solution. |
| // Alternately, we could throw an exception. |
| if (ret->IsObject()) { |
| scopes.setReturnValue(JsObject::toDart(ret.As<v8::Object>(), false)); |
| } else { |
| // This will throw an exception in Dart checked mode. |
| scopes.setReturnValue(ret); |
| } |
| return; |
| } |
| |
| fail: |
| Dart_ThrowException(exception); |
| ASSERT_NOT_REACHED(); |
| } |
| |
| static void identityEqualityCallback(Dart_NativeArguments args) |
| { |
| Dart_Handle exception = 0; |
| { |
| JsInteropScopes scopes(args); |
| DartDOMData* domData = static_cast<DartDOMData*>(Dart_GetNativeIsolateData(args)); |
| v8::Local<v8::Value> a = JsInterop::fromDart(domData, Dart_GetNativeArgument(args, 0), exception); |
| if (exception) |
| goto fail; |
| v8::Local<v8::Value> b = JsInterop::fromDart(domData, Dart_GetNativeArgument(args, 1), exception); |
| if (exception) |
| goto fail; |
| |
| bool strictEquals = a->StrictEquals(b); |
| |
| if (scopes.handleJsException(&exception)) |
| goto fail; |
| scopes.setReturnValue(DartUtilities::boolToDart(strictEquals)); |
| return; |
| } |
| |
| fail: |
| Dart_ThrowException(exception); |
| ASSERT_NOT_REACHED(); |
| } |
| |
| static void getterCallback(Dart_NativeArguments args) |
| { |
| Dart_Handle exception = 0; |
| { |
| JsInteropScopes scopes(args); |
| JsObject* receiver = DartDOMWrapper::receiver<JsObject>(args); |
| v8::Local<v8::Object> v8Receiver = receiver->localV8Object(); |
| Dart_Handle index = Dart_GetNativeArgument(args, 1); |
| uint64_t intIndex = 0; |
| v8::Local<v8::Value> ret; |
| |
| if (Dart_IsInteger(index)) { |
| bool isUint64 = false; |
| Dart_IntegerFitsIntoUint64(index, &isUint64); |
| if (isUint64) { |
| Dart_Handle result = Dart_IntegerToUint64(index, &intIndex); |
| ALLOW_UNUSED_LOCAL(result); |
| if (intIndex <= std::numeric_limits<uint32_t>::max()) { |
| ASSERT(!Dart_IsError(result)); |
| ret = v8Receiver->Get((uint32_t)intIndex); |
| } else { |
| ret = v8Receiver->Get(V8Converter::numberToV8(index)); |
| } |
| } else { |
| ret = v8Receiver->Get(V8Converter::numberToV8(index)); |
| } |
| } else if (Dart_IsString(index)) { |
| ret = v8Receiver->Get(V8Converter::stringToV8(index)); |
| } else if (Dart_IsNumber(index)) { |
| ret = v8Receiver->Get(V8Converter::numberToV8(index)); |
| } else { |
| ret = v8Receiver->Get(V8Converter::stringToV8(Dart_ToString(index))); |
| } |
| |
| if (scopes.handleJsException(&exception)) |
| goto fail; |
| scopes.setReturnValue(ret); |
| return; |
| } |
| |
| fail: |
| Dart_ThrowException(exception); |
| ASSERT_NOT_REACHED(); |
| } |
| |
| static void hasPropertyCallback(Dart_NativeArguments args) |
| { |
| Dart_Handle exception = 0; |
| { |
| JsInteropScopes scopes(args); |
| JsObject* receiver = DartDOMWrapper::receiver<JsObject>(args); |
| v8::Local<v8::Object> v8Receiver = receiver->localV8Object(); |
| Dart_Handle property = Dart_GetNativeArgument(args, 1); |
| |
| if (!Dart_IsString(property)) |
| property = Dart_ToString(property); |
| |
| bool hasProperty = v8Receiver->Has(V8Converter::stringToV8(property)); |
| if (scopes.handleJsException(&exception)) |
| goto fail; |
| scopes.setReturnValue(DartUtilities::boolToDart(hasProperty)); |
| return; |
| } |
| |
| fail: |
| Dart_ThrowException(exception); |
| ASSERT_NOT_REACHED(); |
| } |
| |
| static void deletePropertyCallback(Dart_NativeArguments args) |
| { |
| Dart_Handle exception = 0; |
| { |
| JsInteropScopes scopes(args); |
| JsObject* receiver = DartDOMWrapper::receiver<JsObject>(args); |
| v8::Local<v8::Object> v8Receiver = receiver->localV8Object(); |
| Dart_Handle property = Dart_GetNativeArgument(args, 1); |
| if (!Dart_IsString(property)) |
| property = Dart_ToString(property); |
| |
| v8Receiver->Delete(V8Converter::stringToV8(property)); |
| if (scopes.handleJsException(&exception)) |
| goto fail; |
| return; |
| } |
| |
| fail: |
| Dart_ThrowException(exception); |
| ASSERT_NOT_REACHED(); |
| } |
| |
| static void instanceofCallback(Dart_NativeArguments args) |
| { |
| Dart_Handle exception = 0; |
| { |
| JsInteropScopes scopes(args); |
| DartDOMData* domData = static_cast<DartDOMData*>(Dart_GetNativeIsolateData(args)); |
| JsObject* receiver = DartDOMWrapper::receiver<JsObject>(args); |
| v8::Local<v8::Object> v8Receiver = receiver->localV8Object(); |
| v8::Local<v8::Value> type = JsInterop::fromDart(domData, Dart_GetNativeArgument(args, 1), exception); |
| |
| // FIXME: we could optimize the following lines slightly as the return |
| // type is bool. |
| v8::Local<v8::Value> ret = domData->jsInteropData()->instanceofFunction()->Call(v8Receiver, 1, &type); |
| if (scopes.handleJsException(&exception)) |
| goto fail; |
| scopes.setReturnValue(ret); |
| return; |
| } |
| |
| fail: |
| Dart_ThrowException(exception); |
| ASSERT_NOT_REACHED(); |
| } |
| |
| static void setterCallback(Dart_NativeArguments args) |
| { |
| Dart_Handle exception = 0; |
| { |
| JsInteropScopes scopes(args); |
| DartDOMData* domData = static_cast<DartDOMData*>(Dart_GetNativeIsolateData(args)); |
| JsObject* receiver = DartDOMWrapper::receiver<JsObject>(args); |
| v8::Local<v8::Object> v8Receiver = receiver->localV8Object(); |
| Dart_Handle index = Dart_GetNativeArgument(args, 1); |
| v8::Local<v8::Value> value = JsInterop::fromDart(domData, Dart_GetNativeArgument(args, 2), exception); |
| if (exception) |
| goto fail; |
| uint64_t intIndex = 0; |
| bool ret = false; |
| if (Dart_IsInteger(index)) { |
| bool isUint64 = false; |
| Dart_IntegerFitsIntoUint64(index, &isUint64); |
| if (isUint64) { |
| Dart_Handle result = Dart_IntegerToUint64(index, &intIndex); |
| ALLOW_UNUSED_LOCAL(result); |
| if (intIndex <= std::numeric_limits<uint32_t>::max()) { |
| ASSERT(!Dart_IsError(result)); |
| ret = v8Receiver->Set((uint32_t)intIndex, value); |
| } else { |
| ret = v8Receiver->Set(V8Converter::numberToV8(index), value); |
| } |
| } else { |
| ret = v8Receiver->Set(V8Converter::numberToV8(index), value); |
| } |
| } else if (Dart_IsString(index)) { |
| ret = v8Receiver->Set(V8Converter::stringToV8(index), value); |
| } else if (Dart_IsNumber(index)) { |
| ret = v8Receiver->Set(V8Converter::numberToV8(index), value); |
| } else { |
| ret = v8Receiver->Set(V8Converter::stringToV8(Dart_ToString(index)), value); |
| } |
| |
| if (scopes.handleJsException(&exception)) |
| goto fail; |
| scopes.setReturnValue(DartUtilities::boolToDart(ret)); |
| return; |
| } |
| |
| fail: |
| Dart_ThrowException(exception); |
| ASSERT_NOT_REACHED(); |
| } |
| |
| static void hashCodeCallback(Dart_NativeArguments args) |
| { |
| Dart_Handle exception = 0; |
| { |
| JsInteropScopes scopes(args); |
| JsObject* receiver = DartDOMWrapper::receiver<JsObject>(args); |
| int hashCode = receiver->localV8Object()->GetIdentityHash(); |
| // FIXME: salt the v8 hashcode so we don't leak information about v8 |
| // memory allocation. |
| if (scopes.handleJsException(&exception)) |
| goto fail; |
| scopes.setReturnValueInteger(hashCode); |
| return; |
| } |
| |
| fail: |
| Dart_ThrowException(exception); |
| ASSERT_NOT_REACHED(); |
| } |
| |
| static void callMethodCallback(Dart_NativeArguments args) |
| { |
| Dart_Handle exception = 0; |
| { |
| JsInteropScopes scopes(args); |
| DartDOMData* domData = static_cast<DartDOMData*>(Dart_GetNativeIsolateData(args)); |
| JsObject* receiver = DartDOMWrapper::receiver<JsObject>(args); |
| v8::Local<v8::Object> v8Receiver = receiver->localV8Object(); |
| |
| Dart_Handle name = Dart_GetNativeArgument(args, 1); |
| |
| Vector<v8::Local<v8::Value> > v8Args; |
| argsListToV8(domData, Dart_GetNativeArgument(args, 2), &v8Args, exception); |
| if (exception) |
| goto fail; |
| if (!Dart_IsString(name)) |
| name = Dart_ToString(name); |
| |
| v8::Local<v8::Value> value = v8Receiver->Get(V8Converter::stringToV8(name)); |
| v8::Local<v8::Value> ret; |
| |
| if (value->IsFunction()) { |
| |
| v8::Local<v8::Value> result; |
| if (!V8ScriptRunner::callFunction(value.As<v8::Function>(), |
| DartUtilities::scriptExecutionContext(), receiver->localV8Object(), v8Args.size(), v8Args.data(), v8::Isolate::GetCurrent()).ToLocal(&ret)) { |
| if (!scopes.handleJsException(&exception)) |
| exception = Dart_NewStringFromCString("V8 Exception"); |
| goto fail; |
| } |
| } else { |
| // FIXME: we currently convert this exception to a NoSuchMethod |
| // exception in the Dart code that wraps this native method. |
| // Consider throwing a NoSuchMethod exception directly instead. |
| exception = Dart_NewStringFromCString("property is not a function"); |
| goto fail; |
| } |
| |
| if (scopes.handleJsException(&exception)) |
| goto fail; |
| |
| scopes.setReturnValue(ret); |
| return; |
| } |
| |
| fail: |
| Dart_ThrowException(exception); |
| ASSERT_NOT_REACHED(); |
| } |
| |
| static void newJsArrayCallback(Dart_NativeArguments args) |
| { |
| JsInteropScopes scopes(args); |
| scopes.setReturnValue(JsObject::toDart(v8::Array::New(v8::Isolate::GetCurrent()), false)); |
| return; |
| } |
| |
| static void newJsArrayFromSafeListCallback(Dart_NativeArguments args) |
| { |
| Dart_Handle exception = 0; |
| { |
| JsInteropScopes scopes(args); |
| DartDOMData* domData = static_cast<DartDOMData*>(Dart_GetNativeIsolateData(args)); |
| Dart_Handle list = Dart_GetNativeArgument(args, 0); |
| // Code on the Dart side insures this arg is a native Dart list. |
| ASSERT(Dart_IsList(list)); |
| |
| intptr_t length = 0; |
| Dart_Handle result = Dart_ListLength(list, &length); |
| ASSERT(!Dart_IsError(result)); |
| v8::Local<v8::Array> array = v8::Array::New(v8::Isolate::GetCurrent(), length); |
| |
| for (intptr_t i = 0; i < length; ++i) { |
| result = Dart_ListGetAt(list, i); |
| ASSERT(!Dart_IsError(result)); |
| v8::Handle<v8::Value> v8value = JsInterop::fromDart(domData, result, exception); |
| if (exception) |
| goto fail; |
| |
| array->Set(i, v8value); |
| } |
| scopes.setReturnValue(array); |
| return; |
| } |
| |
| fail: |
| Dart_ThrowException(exception); |
| ASSERT_NOT_REACHED(); |
| } |
| |
| |
| static void jsArrayLengthCallback(Dart_NativeArguments args) |
| { |
| Dart_Handle exception = 0; |
| { |
| JsInteropScopes scopes(args); |
| JsArray* receiver = DartDOMWrapper::receiver<JsArray>(args); |
| v8::Local<v8::Value> length = receiver->localV8Object()->Get(v8::String::NewFromUtf8(v8::Isolate::GetCurrent(), "length")); |
| if (scopes.handleJsException(&exception)) |
| goto fail; |
| scopes.setReturnValue(length); |
| return; |
| } |
| |
| fail: |
| Dart_ThrowException(exception); |
| ASSERT_NOT_REACHED(); |
| } |
| |
| static void fromBrowserObjectCallback(Dart_NativeArguments args) |
| { |
| Dart_Handle exception = 0; |
| { |
| JsInteropScopes scopes(args); |
| DartDOMData* domData = static_cast<DartDOMData*>(Dart_GetNativeIsolateData(args)); |
| |
| v8::Local<v8::Value> ret = V8Converter::toV8IfBrowserNative(domData, Dart_GetNativeArgument(args, 0), exception); |
| if (ret.IsEmpty()) { |
| exception = Dart_NewStringFromCString("object must be an Node, ArrayBuffer, Blob, ImageData, or IDBKeyRange"); |
| goto fail; |
| } |
| if (exception) |
| goto fail; |
| ASSERT(ret->IsObject()); |
| if (scopes.handleJsException(&exception)) |
| goto fail; |
| scopes.setReturnValue(JsObject::toDart(ret.As<v8::Object>(), false)); |
| return; |
| } |
| |
| fail: |
| Dart_ThrowException(exception); |
| ASSERT_NOT_REACHED(); |
| } |
| |
| static void applyCallback(Dart_NativeArguments args) |
| { |
| Dart_Handle exception = 0; |
| { |
| JsInteropScopes scopes(args); |
| DartDOMData* domData = static_cast<DartDOMData*>(Dart_GetNativeIsolateData(args)); |
| JsFunction* receiver = DartDOMWrapper::receiver<JsFunction>(args); |
| |
| Vector<v8::Local<v8::Value> > v8Args; |
| argsListToV8(domData, Dart_GetNativeArgument(args, 1), &v8Args, exception); |
| if (exception) |
| goto fail; |
| |
| v8::Local<v8::Value> thisArg; |
| Dart_Handle thisArgDart = Dart_GetNativeArgument(args, 2); |
| if (Dart_IsNull(thisArgDart)) { |
| // Use the global v8 object if no Dart thisArg was passed in. |
| thisArg = DartUtilities::currentV8Context()->Global(); |
| } else { |
| thisArg = JsInterop::fromDart(domData, thisArgDart, exception); |
| if (exception) |
| goto fail; |
| if (!thisArg->IsObject()) { |
| exception = Dart_NewStringFromCString("thisArg is not an object"); |
| goto fail; |
| } |
| } |
| |
| v8::Local<v8::Value> ret; |
| if (!V8ScriptRunner::callFunction(receiver->localV8Function(), |
| DartUtilities::scriptExecutionContext(), |
| thisArg.As<v8::Object>(), |
| v8Args.size(), |
| v8Args.data(), |
| v8::Isolate::GetCurrent()).ToLocal(&ret)) { |
| exception = Dart_NewStringFromCString("V8 Exception"); |
| goto fail; |
| } |
| if (scopes.handleJsException(&exception)) |
| goto fail; |
| scopes.setReturnValue(ret); |
| return; |
| } |
| |
| fail: |
| Dart_ThrowException(exception); |
| ASSERT_NOT_REACHED(); |
| } |
| |
| static void applyDebuggerOnlyCallback(Dart_NativeArguments args) |
| { |
| Dart_Handle exception = 0; |
| { |
| JsInteropScopes scopes(args); |
| DartDOMData* domData = static_cast<DartDOMData*>(Dart_GetNativeIsolateData(args)); |
| JsFunction* receiver = DartDOMWrapper::receiver<JsFunction>(args); |
| |
| Vector<v8::Local<v8::Value> > v8Args; |
| argsListToV8DebuggerOnly(domData, Dart_GetNativeArgument(args, 1), &v8Args, exception); |
| if (exception) |
| goto fail; |
| |
| v8::Local<v8::Value> thisArg; |
| Dart_Handle thisArgDart = Dart_GetNativeArgument(args, 2); |
| if (Dart_IsNull(thisArgDart)) { |
| // Use the global v8 object if no Dart thisArg was passed in. |
| thisArg = DartUtilities::currentV8Context()->Global(); |
| } else { |
| thisArg = JsInterop::fromDart(domData, thisArgDart, exception); |
| if (exception) |
| goto fail; |
| if (!thisArg->IsObject()) { |
| exception = Dart_NewStringFromCString("thisArg is not an object"); |
| goto fail; |
| } |
| } |
| |
| v8::Local<v8::Value> ret; |
| if (!V8ScriptRunner::callFunction(receiver->localV8Function(), |
| DartUtilities::scriptExecutionContext(), |
| thisArg.As<v8::Object>(), |
| v8Args.size(), |
| v8Args.data(), |
| v8::Isolate::GetCurrent()).ToLocal(&ret)) { |
| exception = Dart_NewStringFromCString("V8 Exception"); |
| goto fail; |
| } |
| if (scopes.handleJsException(&exception)) |
| goto fail; |
| scopes.setReturnValue(ret); |
| return; |
| } |
| |
| fail: |
| Dart_ThrowException(exception); |
| ASSERT_NOT_REACHED(); |
| } |
| |
| static void toStringCallback(Dart_NativeArguments args) |
| { |
| Dart_Handle exception = 0; |
| { |
| JsInteropScopes scopes(args); |
| JsObject* receiver = DartDOMWrapper::receiver<JsObject>(args); |
| v8::Local<v8::Object> v8Object = receiver->localV8Object(); |
| if (scopes.handleJsException(&exception)) |
| goto fail; |
| if (v8Object.IsEmpty()) { |
| exception = Dart_NewStringFromCString("Invalid v8 handle"); |
| goto fail; |
| } |
| |
| v8::Local<v8::String> v8String = v8Object->ToString(); |
| if (scopes.handleJsException(&exception)) |
| goto fail; |
| scopes.setReturnValue(v8String); |
| return; |
| } |
| fail: |
| Dart_ThrowException(exception); |
| ASSERT_NOT_REACHED(); |
| } |
| |
| static void contextCallback(Dart_NativeArguments args) |
| { |
| v8::Local<v8::Context> v8Context = DartUtilities::currentV8Context(); |
| v8::Context::Scope scope(v8Context); |
| Dart_SetReturnValue(args, JsObject::toDart(v8Context->Global(), false)); |
| } |
| |
| static void finalizeJsInterfacesCallback(Dart_NativeArguments args) |
| { |
| // Obsolete. |
| } |
| |
| static void interfacesFinalizedCallback(Dart_NativeArguments args) |
| { |
| DartDOMData* domData = static_cast<DartDOMData*>(Dart_GetNativeIsolateData(args)); |
| DartJsInteropData* interopData = domData->jsInteropData(); |
| // Skip if the JSObjectImpl class has already been defined. |
| Dart_SetBooleanReturnValue(args, interopData->jsObjectImplDefined()); |
| } |
| |
| v8::Handle<v8::Value> mapToV8(DartDOMData* domData, Dart_Handle value, DartHandleToV8Map& map, Dart_Handle& exception) |
| { |
| Dart_Handle asList = DartUtilities::invokeUtilsMethod("convertMapToList", 1, &value); |
| if (!DartUtilities::checkResult(asList, exception)) |
| return v8::Handle<v8::Value>(); |
| ASSERT(Dart_IsList(asList)); |
| |
| // Now we have a list [key, value, key, value, ....], create a v8 object and set necesary |
| // properties on it. |
| v8::Handle<v8::Object> object = v8::Object::New(v8::Isolate::GetCurrent()); |
| map.set(value, object); |
| |
| // We converted to internal Dart list, methods shouldn't throw exceptions now. |
| intptr_t length = 0; |
| Dart_Handle result = Dart_ListLength(asList, &length); |
| ALLOW_UNUSED_LOCAL(result); |
| ASSERT(!Dart_IsError(result)); |
| ASSERT(!(length % 2)); |
| for (intptr_t i = 0; i < length; i += 2) { |
| v8::Handle<v8::Value> key = jsifyHelper(domData, Dart_ListGetAt(asList, i), map, exception); |
| if (exception) |
| return v8::Handle<v8::Value>(); |
| v8::Handle<v8::Value> value = jsifyHelper(domData, Dart_ListGetAt(asList, i + 1), map, exception); |
| if (exception) |
| return v8::Handle<v8::Value>(); |
| |
| object->Set(key, value); |
| } |
| |
| return object; |
| } |
| |
| v8::Handle<v8::Value> listToV8(DartDOMData* domData, Dart_Handle value, DartHandleToV8Map& map, Dart_Handle& exception) |
| { |
| ASSERT(Dart_IsList(value)); |
| |
| intptr_t length = 0; |
| Dart_Handle result = Dart_ListLength(value, &length); |
| if (!DartUtilities::checkResult(result, exception)) |
| return v8::Handle<v8::Value>(); |
| |
| v8::Local<v8::Array> array = v8::Array::New(v8::Isolate::GetCurrent(), length); |
| map.set(value, array); |
| |
| for (intptr_t i = 0; i < length; ++i) { |
| result = Dart_ListGetAt(value, i); |
| if (!DartUtilities::checkResult(result, exception)) |
| return v8::Handle<v8::Value>(); |
| v8::Handle<v8::Value> v8value = jsifyHelper(domData, result, map, exception); |
| if (exception) |
| return v8::Handle<v8::Value>(); |
| array->Set(i, v8value); |
| } |
| |
| return array; |
| } |
| |
| v8::Handle<v8::Value> jsifyHelper(DartDOMData* domData, Dart_Handle value, DartHandleToV8Map& map, Dart_Handle& exception) |
| { |
| DartHandleToV8Map::iterator iter = map.find(value); |
| if (iter != map.end()) |
| return iter->value; |
| |
| if (Dart_IsList(value)) |
| return listToV8(domData, value, map, exception); |
| |
| bool isMap = DartUtilities::dartToBool(DartUtilities::invokeUtilsMethod("isMap", 1, &value), exception); |
| ASSERT(!exception); |
| if (isMap) |
| return mapToV8(domData, value, map, exception); |
| |
| Dart_Handle maybeList = DartUtilities::invokeUtilsMethod("toListIfIterable", 1, &value); |
| if (Dart_IsList(maybeList)) |
| return listToV8(domData, maybeList, map, exception); |
| |
| v8::Handle<v8::Value> ret = JsInterop::fromDart(domData, value, exception); |
| map.set(value, ret); |
| return ret; |
| } |
| |
| static void jsifyCallback(Dart_NativeArguments args) |
| { |
| Dart_Handle exception = 0; |
| { |
| JsInteropScopes scopes(args); |
| Dart_Handle value = Dart_GetNativeArgument(args, 0); |
| DartDOMData* domData = static_cast<DartDOMData*>(Dart_GetNativeIsolateData(args)); |
| DartHandleToV8Map map; |
| v8::Local<v8::Value> ret = jsifyHelper(domData, value, map, exception); |
| if (exception) |
| goto fail; |
| |
| if (scopes.handleJsException(&exception)) |
| goto fail; |
| // Intentionally skip auto-conversion in this case as the user expects |
| // a JSObject. FIXME: evaluate if this is the right solution. |
| // Alternately, we could throw an exception. |
| if (ret->IsObject()) { |
| scopes.setReturnValue(JsObject::toDart(ret.As<v8::Object>(), false)); |
| } else { |
| // This will throw an exception in Dart checked mode. |
| scopes.setReturnValue(ret); |
| } |
| return; |
| } |
| fail: |
| Dart_ThrowException(exception); |
| ASSERT_NOT_REACHED(); |
| } |
| |
| static void withThisCallback(Dart_NativeArguments args) |
| { |
| Dart_Handle exception = 0; |
| { |
| JsInteropScopes scopes(args); |
| Dart_Handle function = Dart_GetNativeArgument(args, 0); |
| DartDOMData* domData = static_cast<DartDOMData*>(Dart_GetNativeIsolateData(args)); |
| ASSERT(DartUtilities::isFunction(domData, function)); |
| |
| v8::Local<v8::Object> proxy = dartFunctionTemplate()->InstanceTemplate()->NewInstance(); |
| DartHandleProxy::writePointerToProxy(proxy, function); |
| |
| v8::Local<v8::Function> ret = v8::Local<v8::Function>::Cast(domData->jsInteropData()->captureThisFunction()->Call(proxy, 0, 0)); |
| |
| if (scopes.handleJsException(&exception)) |
| goto fail; |
| scopes.setReturnValue(ret); |
| return; |
| } |
| fail: |
| Dart_ThrowException(exception); |
| ASSERT_NOT_REACHED(); |
| } |
| |
| |
| static void withThisCallbackNoWrap(Dart_NativeArguments args) |
| { |
| Dart_Handle exception = 0; |
| { |
| JsInteropScopes scopes(args); |
| Dart_Handle function = Dart_GetNativeArgument(args, 0); |
| DartDOMData* domData = static_cast<DartDOMData*>(Dart_GetNativeIsolateData(args)); |
| ASSERT(DartUtilities::isFunction(domData, function)); |
| |
| v8::Local<v8::Object> proxy = dartFunctionTemplateNoWrap()->InstanceTemplate()->NewInstance(); |
| DartHandleProxy::writePointerToProxy(proxy, function); |
| |
| v8::Local<v8::Function> ret = v8::Local<v8::Function>::Cast(domData->jsInteropData()->captureThisFunction()->Call(proxy, 0, 0)); |
| |
| if (scopes.handleJsException(&exception)) |
| goto fail; |
| scopes.setReturnValue(ret); |
| return; |
| } |
| fail: |
| Dart_ThrowException(exception); |
| ASSERT_NOT_REACHED(); |
| } |
| |
| } |
| |
| static DartNativeEntry nativeEntries[] = { |
| { JsInteropInternal::jsObjectConstructorCallback, 2, "JsObject_constructorCallback" }, |
| { JsInterop::jsInteropContextCallback, 0, "Js_context_Callback" }, |
| { JsInteropInternal::finalizeJsInterfacesCallback, 0, "Js_finalizeJsInterfaces" }, |
| { JsInteropInternal::interfacesFinalizedCallback, 0, "Js_interfacesFinalized_Callback" }, |
| { JsInteropInternal::jsifyCallback, 1, "JsObject_jsify" }, |
| { JsInteropInternal::withThisCallback, 1, "JsFunction_withThis" }, |
| { JsInteropInternal::withThisCallbackNoWrap, 1, "JsFunction_withThisNoWrap" }, |
| { JsInterop::jsInteropGetterCallback, 2, "JsObject_[]" }, |
| { JsInteropInternal::setterCallback, 3, "JsObject_[]=" }, |
| { JsInteropInternal::hashCodeCallback, 1, "JsObject_hashCode" }, |
| { JsInterop::jsInteropCallMethodCallback, 3, "JsObject_callMethod" }, |
| { JsInteropInternal::toStringCallback, 1, "JsObject_toString" }, |
| { JsInteropInternal::identityEqualityCallback, 2, "JsObject_identityEquality" }, |
| { JsInteropInternal::hasPropertyCallback, 2, "JsObject_hasProperty" }, |
| { JsInteropInternal::deletePropertyCallback, 2, "JsObject_deleteProperty" }, |
| { JsInteropInternal::instanceofCallback, 2, "JsObject_instanceof" }, |
| { JsInteropInternal::applyCallback, 3, "JsFunction_apply" }, |
| { JsInteropInternal::applyDebuggerOnlyCallback, 3, "JsFunction_applyDebuggerOnly" }, |
| { JsInteropInternal::newJsArrayCallback, 0, "JsArray_newJsArray" }, |
| { JsInteropInternal::newJsArrayFromSafeListCallback, 1, "JsArray_newJsArrayFromSafeList" }, |
| { JsInteropInternal::jsArrayLengthCallback, 1, "JsArray_length" }, |
| { JsInteropInternal::fromBrowserObjectCallback, 1, "JsObject_fromBrowserObject" }, |
| { 0, 0, 0 }, |
| }; |
| |
| Dart_NativeFunction JsInterop::resolver(Dart_Handle nameHandle, int argumentCount, bool* autoSetupScope) |
| { |
| ASSERT(autoSetupScope); |
| *autoSetupScope = true; |
| String name = DartUtilities::toString(nameHandle); |
| |
| for (intptr_t i = 0; nativeEntries[i].nativeFunction != 0; i++) { |
| if (argumentCount == nativeEntries[i].argumentCount && name == nativeEntries[i].name) { |
| return nativeEntries[i].nativeFunction; |
| } |
| } |
| |
| return 0; |
| } |
| |
| const uint8_t* JsInterop::symbolizer(Dart_NativeFunction nf) |
| { |
| 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; |
| } |
| |
| // Methods enabling a Dart List to emulate a JS Array. |
| static void indexedGetterArray(uint32_t index, const v8::PropertyCallbackInfo<v8::Value>& info) |
| { |
| DartScopes scopes(info.Holder()); |
| Dart_Handle handle = scopes.handle; |
| DartDOMData* domData = DartDOMData::current(); |
| Dart_Handle ret = 0; |
| ASSERT(Dart_IsList(handle)); |
| ret = Dart_ListGetAt(handle, index); |
| if (Dart_IsError(ret)) { |
| // Return undefined if the index is invalid to match JS semantics. |
| // TODO(jacobr): we should log to the console warning of bad use of a |
| // Dart List. |
| return; |
| } |
| setJsReturnValue(domData, info, ret); |
| } |
| |
| static void indexedSetterArray(uint32_t index, v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<v8::Value>& info) |
| { |
| DartScopes scopes(info.Holder()); |
| Dart_Handle handle = scopes.handle; |
| DartDOMData* domData = DartDOMData::current(); |
| |
| Dart_Handle ret = 0; |
| ASSERT(Dart_IsList(handle)); |
| intptr_t length = 0; |
| ret = Dart_ListLength(handle, &length); |
| ASSERT(!Dart_IsError(ret)); |
| if (index >= static_cast<uint32_t>(length)) { |
| // Approximate JS semantics by filling the list with nulls if we |
| // attempt to add an element past the end of the list. |
| // TODO(jacobr): ideally we would match JS semantics exactly and fill |
| // the list with undefined. |
| Dart_Handle args[2] = { handle, DartUtilities::unsignedToDart(index + 1)}; |
| ret = Dart_Invoke(domData->jsLibrary(), Dart_NewStringFromCString("_arrayExtend"), 2, args); |
| ASSERT(!Dart_IsError(ret)); |
| } |
| ret = Dart_ListSetAt(handle, index, DartHandleProxy::unwrapValue(value)); |
| if (Dart_IsError(ret)) { |
| // Return undefined if the index is invalid to match JS semantics. |
| // TODO(jacobr): we should log to the console warning of bad use of a |
| // Dart list or add a JS expando to the object ala JS. |
| } |
| setJsReturnValue(domData, info, ret); |
| } |
| |
| static void indexedEnumeratorArray(const v8::PropertyCallbackInfo<v8::Array>& info) |
| { |
| DartScopes scopes(info.Holder()); |
| Dart_Handle handle = scopes.handle; |
| |
| intptr_t length = 0; |
| ASSERT(Dart_IsList(handle)); |
| Dart_ListLength(handle, &length); |
| |
| v8::Isolate* v8Isolate = v8::Isolate::GetCurrent(); |
| v8::Local<v8::Array> indexes = v8::Array::New(v8Isolate, length); |
| for (int i = 0; i < length; i++) |
| indexes->Set(i, v8::Integer::New(v8Isolate, i)); |
| |
| v8SetReturnValue(info, indexes); |
| } |
| |
| v8::Handle<v8::Array> shallowListToV8(Dart_Handle value, DartDOMData* domData, Dart_Handle& exception) |
| { |
| ASSERT(Dart_IsList(value)); |
| |
| intptr_t length = 0; |
| Dart_Handle result = Dart_ListLength(value, &length); |
| if (!DartUtilities::checkResult(result, exception)) |
| return v8::Handle<v8::Array>(); |
| |
| v8::Local<v8::Array> array = v8::Array::New(v8::Isolate::GetCurrent(), length); |
| |
| for (intptr_t i = 0; i < length; ++i) { |
| result = Dart_ListGetAt(value, i); |
| v8::Handle<v8::Value> v8value = JsInterop::fromDart(domData, result, exception); |
| // TODO(jacobr): is there a better way to handle this error case? |
| if (exception) |
| return v8::Handle<v8::Array>(); |
| array->Set(i, v8value); |
| } |
| return array; |
| } |
| |
| // If one of the methods we added to the Dart List proxy to make it mascarade |
| // as JavaScript Array happens to get called on a JavaScript object instead of |
| // a Dart List proxy object we use the corresponding regular JavaScript Array |
| // method which will do something plausible in most cases even if the |
| // JavaScript object isn't actually a JavaScript array. The chrome devtools |
| // appear to go down exactly this code path as I got crashes in the devtools |
| // due to info.Holder not being a DartHandleProxy. I haven't investigated |
| // whether devtools would still function properly if we threw an exception |
| // which would match the behavior of DOM classes when a method is called on the |
| // wrong object. The current behavior while strange matches the behavior |
| // observed when an method from Array is called on an arbitrary JS object. |
| bool handleNonDartProxyThis(const v8::FunctionCallbackInfo<v8::Value>& info, const char* jsMethodName) |
| { |
| if (DartHandleProxy::isDartProxy(info.Holder())) { |
| return false; |
| } |
| v8::Isolate* v8Isolate = v8::Isolate::GetCurrent(); |
| // Get the method on JS array in an inefficient way. |
| v8::Local<v8::Function> method = v8::Array::New(v8Isolate)->Get(v8::String::NewFromUtf8(v8Isolate, jsMethodName)).As<v8::Function>(); |
| ASSERT(!method.IsEmpty()); |
| int length = info.Length(); |
| Vector<v8::Local<v8::Value> > v8Args(length); |
| for (int i = 0; i < length; ++i) { |
| v8Args[i] = info[i]; |
| } |
| v8SetReturnValue(info, method->Call(info.Holder(), length, v8Args.data())); |
| return true; |
| } |
| |
| void arrayHelper(const v8::FunctionCallbackInfo<v8::Value>& info, const char* methodName, const char* jsMethodName) |
| { |
| if (handleNonDartProxyThis(info, jsMethodName)) { |
| return; |
| } |
| DartScopes scopes(info.Holder()); |
| DartDOMData* domData = DartDOMData::current(); |
| Dart_Handle handle = scopes.handle; |
| Dart_Handle ret = Dart_Invoke(domData->jsLibrary(), Dart_NewStringFromCString(methodName), 1, &handle); |
| setJsReturnValue(domData, info, ret); |
| } |
| |
| void arrayHelper1Arg(const v8::FunctionCallbackInfo<v8::Value>& info, const char* methodName, const char* jsMethodName) |
| { |
| if (handleNonDartProxyThis(info, jsMethodName)) { |
| return; |
| } |
| DartScopes scopes(info.Holder()); |
| DartDOMData* domData = DartDOMData::current(); |
| Dart_Handle handle = scopes.handle; |
| Dart_Handle e; |
| if (info.Length() == 0) { |
| e = Dart_Null(); |
| } else { |
| e = JsInterop::toDart(info[0], false); |
| } |
| Dart_Handle args[2] = { handle, e }; |
| Dart_Handle ret = Dart_Invoke(domData->jsLibrary(), Dart_NewStringFromCString(methodName), 2, args); |
| setJsReturnValue(domData, info, ret); |
| } |
| |
| void arrayHelperWithArgsAsList(const v8::FunctionCallbackInfo<v8::Value>& info, const char* methodName, const char* jsMethodName) |
| { |
| if (handleNonDartProxyThis(info, jsMethodName)) { |
| return; |
| } |
| DartScopes scopes(info.Holder()); |
| DartDOMData* domData = DartDOMData::current(); |
| Dart_Handle handle = scopes.handle; |
| int length = info.Length(); |
| Dart_Handle argsList = Dart_NewList(length); |
| for (int i = 0; i < length; ++i) { |
| Dart_ListSetAt(argsList, i, JsInterop::toDart(info[i], false)); |
| } |
| // Note: this is also just info.Holder(). |
| Dart_Handle args[2] = { handle, argsList }; |
| setJsReturnValue(domData, info, Dart_Invoke(domData->jsLibrary(), Dart_NewStringFromCString(methodName), 2, args)); |
| } |
| |
| static void arrayNamedPropertyGetter(v8::Local<v8::String> name, const v8::PropertyCallbackInfo<v8::Value>& info) |
| { |
| if (!DartHandleProxy::isDartProxy(info.Holder())) { |
| // I don't think this case can occur but avoid crashing if there is an |
| // exotic way to trigger it. |
| return; |
| } |
| |
| v8::Isolate* v8Isolate = v8::Isolate::GetCurrent(); |
| if (!name->Equals(v8::String::NewFromUtf8(v8Isolate, "length"))) |
| return; |
| |
| DartScopes scopes(info.Holder()); |
| Dart_Handle handle = scopes.handle; |
| |
| intptr_t length = 0; |
| Dart_ListLength(handle, &length); |
| v8SetReturnValueInt(info, length); |
| } |
| |
| static void arrayNamedPropertySetter(v8::Local<v8::String> property, v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<v8::Value>& info) |
| { |
| if (!DartHandleProxy::isDartProxy(info.Holder())) { |
| // I don't think this case can occur but avoid crashing if there is an |
| // exotic way to trigger it. |
| return; |
| } |
| |
| v8::Isolate* v8Isolate = v8::Isolate::GetCurrent(); |
| if (!property->Equals(v8::String::NewFromUtf8(v8Isolate, "length"))) { |
| return; |
| } |
| |
| DartScopes scopes(info.Holder()); |
| Dart_Handle handle = scopes.handle; |
| DartDOMData* domData = DartDOMData::current(); |
| Dart_Handle args[2] = { handle, JsInterop::toDart(value, true) }; |
| Dart_Handle ret = Dart_Invoke(domData->jsLibrary(), Dart_NewStringFromCString("_setListLength"), 2, args); |
| setJsReturnValue(domData, info, ret); |
| } |
| |
| static void arrayQueryProperty(v8::Local<v8::String> name, const v8::PropertyCallbackInfo<v8::Integer>& info) |
| { |
| v8::Isolate* v8Isolate = v8::Isolate::GetCurrent(); |
| if (name->Equals(v8::String::NewFromUtf8(v8Isolate, "length"))) { |
| v8SetReturnValueInt(info, v8::DontEnum | v8::DontDelete); |
| } |
| } |
| |
| static void arrayDeleteProperty(v8::Local<v8::String> name, const v8::PropertyCallbackInfo<v8::Boolean>& info) |
| { |
| v8::Isolate* v8Isolate = v8::Isolate::GetCurrent(); |
| if (name->Equals(v8::String::NewFromUtf8(v8Isolate, "length"))) { |
| v8SetReturnValueBool(info, false); |
| } |
| } |
| |
| void arrayToStringCallback(const v8::FunctionCallbackInfo<v8::Value>& info) |
| { |
| arrayHelper(info, "_arrayToString", "toString"); |
| } |
| |
| |
| void arrayJoinCallback(const v8::FunctionCallbackInfo<v8::Value>& info) |
| { |
| arrayHelper1Arg(info, "_arrayJoin", "join"); |
| } |
| |
| void arrayPushCallback(const v8::FunctionCallbackInfo<v8::Value>& info) |
| { |
| arrayHelperWithArgsAsList(info, "_arrayPush", "push"); |
| } |
| |
| void arrayPopCallback(const v8::FunctionCallbackInfo<v8::Value>& info) |
| { |
| arrayHelper(info, "_arrayPop", "pop"); |
| } |
| |
| void concatCallback(const v8::FunctionCallbackInfo<v8::Value>& info) |
| { |
| arrayHelperWithArgsAsList(info, "_arrayConcat", "concat"); |
| } |
| |
| void arrayReverseCallback(const v8::FunctionCallbackInfo<v8::Value>& info) |
| { |
| arrayHelper(info, "_arrayReverse", "reverse"); |
| } |
| |
| void arrayShiftCallback(const v8::FunctionCallbackInfo<v8::Value>& info) |
| { |
| arrayHelper(info, "_arrayShift", "shift"); |
| } |
| |
| void arrayUnshiftCallback(const v8::FunctionCallbackInfo<v8::Value>& info) |
| { |
| arrayHelperWithArgsAsList(info, "_arrayUnshift", "unshift"); |
| } |
| |
| void arraySpliceCallback(const v8::FunctionCallbackInfo<v8::Value>& info) |
| { |
| arrayHelperWithArgsAsList(info, "_arraySplice", "splice"); |
| } |
| |
| void toJsArrayCallback(const v8::FunctionCallbackInfo<v8::Value>& info) |
| { |
| // This isn't a method on the JavaScript Array class so it is fine to |
| // just return the existing hopefully Array like JS object if not called on |
| // a Dart List. |
| if (!DartHandleProxy::isDartProxy(info.Holder())) { |
| v8SetReturnValue(info, info.Holder()); |
| } |
| DartScopes scopes(info.Holder()); |
| DartDOMData* domData = DartDOMData::current(); |
| Dart_Handle handle = scopes.handle; |
| Dart_Handle exception = 0; |
| v8::Local<v8::Array> v8Array = shallowListToV8(handle, domData, exception); |
| ASSERT(!exception); |
| v8SetReturnValue(info, v8Array); |
| } |
| |
| void arraySortCallback(const v8::FunctionCallbackInfo<v8::Value>& info) |
| { |
| // TODO(jacobr): consider using the JavaScript sort method instead. |
| arrayHelper1Arg(info, "_arraySort", "sort"); |
| } |
| |
| v8::Local<v8::FunctionTemplate> dartListTemplate() |
| { |
| DEFINE_STATIC_LOCAL(v8::Persistent<v8::FunctionTemplate>, proxyTemplate, ()); |
| v8::Local<v8::FunctionTemplate> proxyTemplateLocal; |
| v8::Isolate* v8Isolate = v8::Isolate::GetCurrent(); |
| if (proxyTemplate.IsEmpty()) { |
| proxyTemplate.Reset(v8::Isolate::GetCurrent(), v8::FunctionTemplate::New(v8Isolate)); |
| proxyTemplateLocal = v8::Local<v8::FunctionTemplate>::New(v8Isolate, proxyTemplate); |
| // Set to Array because we want these instances to appear to be |
| // JavaScript arrays as far as user code is concerned. |
| proxyTemplateLocal->SetClassName(v8::String::NewFromUtf8(v8Isolate, "Array")); |
| // Hack to set the prototype to be the prototype of an actual JavaScript Array. |
| |
| v8::Local<v8::ObjectTemplate> protoTemplate = proxyTemplateLocal->PrototypeTemplate(); |
| |
| protoTemplate ->Set(v8::String::NewFromUtf8(v8Isolate, "toString"), v8::FunctionTemplate::New(v8Isolate, arrayToStringCallback), v8::DontEnum); |
| protoTemplate ->Set(v8::String::NewFromUtf8(v8Isolate, "join"), v8::FunctionTemplate::New(v8Isolate, arrayJoinCallback), v8::DontEnum); |
| protoTemplate ->Set(v8::String::NewFromUtf8(v8Isolate, "push"), v8::FunctionTemplate::New(v8Isolate, arrayPushCallback), v8::DontEnum); |
| protoTemplate ->Set(v8::String::NewFromUtf8(v8Isolate, "pop"), v8::FunctionTemplate::New(v8Isolate, arrayPopCallback), v8::DontEnum); |
| protoTemplate ->Set(v8::String::NewFromUtf8(v8Isolate, "concat"), v8::FunctionTemplate::New(v8Isolate, concatCallback), v8::DontEnum); |
| protoTemplate ->Set(v8::String::NewFromUtf8(v8Isolate, "reverse"), v8::FunctionTemplate::New(v8Isolate, arrayReverseCallback), v8::DontEnum); |
| |
| protoTemplate ->Set(v8::String::NewFromUtf8(v8Isolate, "shift"), v8::FunctionTemplate::New(v8Isolate, arrayShiftCallback), v8::DontEnum); |
| protoTemplate ->Set(v8::String::NewFromUtf8(v8Isolate, "unshift"), v8::FunctionTemplate::New(v8Isolate, arrayUnshiftCallback), v8::DontEnum); |
| protoTemplate ->Set(v8::String::NewFromUtf8(v8Isolate, "splice"), v8::FunctionTemplate::New(v8Isolate, arraySpliceCallback), v8::DontEnum); |
| protoTemplate ->Set(v8::String::NewFromUtf8(v8Isolate, "sort"), v8::FunctionTemplate::New(v8Isolate, arraySortCallback), v8::DontEnum); |
| protoTemplate ->Set(v8::String::NewFromUtf8(v8Isolate, "$toJsArray"), v8::FunctionTemplate::New(v8Isolate, toJsArrayCallback), v8::DontEnum); |
| |
| // ES6 experimental properties not currently supported that we could support if needed. |
| // These would require building separate live proxy objects. |
| // "entries", |
| // "values", |
| // "keys" |
| |
| v8::Local<v8::ObjectTemplate> instanceTemplate = setupInstanceTemplate(proxyTemplateLocal); |
| instanceTemplate->SetIndexedPropertyHandler(&indexedGetterArray, &indexedSetterArray, 0, 0, &indexedEnumeratorArray); |
| instanceTemplate->SetNamedPropertyHandler(&arrayNamedPropertyGetter, &arrayNamedPropertySetter, &arrayQueryProperty, &arrayDeleteProperty, 0); |
| } else { |
| proxyTemplateLocal = v8::Local<v8::FunctionTemplate>::New(v8Isolate, proxyTemplate); |
| } |
| return proxyTemplateLocal; |
| } |
| |
| void dartObjectToStringCallback(const v8::FunctionCallbackInfo<v8::Value>& info) |
| { |
| if (handleNonDartProxyThis(info, "toString")) { |
| return; |
| } |
| DartScopes scopes(info.Holder()); |
| DartDOMData* domData = DartDOMData::current(); |
| Dart_Handle handle = scopes.handle; |
| setJsReturnValue(domData, info, Dart_ToString(handle)); |
| } |
| |
| static v8::Local<v8::FunctionTemplate> dartObjectTemplate() |
| { |
| DEFINE_STATIC_LOCAL(v8::Persistent<v8::FunctionTemplate>, proxyTemplate, ()); |
| v8::Local<v8::FunctionTemplate> proxyTemplateLocal; |
| v8::Isolate* v8Isolate = v8::Isolate::GetCurrent(); |
| if (proxyTemplate.IsEmpty()) { |
| proxyTemplate.Reset(v8Isolate, v8::FunctionTemplate::New(v8Isolate)); |
| proxyTemplateLocal = v8::Local<v8::FunctionTemplate>::New(v8Isolate, proxyTemplate); |
| v8::Local<v8::ObjectTemplate> protoTemplate = proxyTemplateLocal->PrototypeTemplate(); |
| protoTemplate->Set(v8::String::NewFromUtf8(v8Isolate, "toString"), v8::FunctionTemplate::New(v8Isolate, dartObjectToStringCallback)); |
| |
| proxyTemplateLocal->SetClassName(v8::String::NewFromUtf8(v8Isolate, "DartObject")); |
| setupInstanceTemplate(proxyTemplateLocal); |
| } else { |
| proxyTemplateLocal = v8::Local<v8::FunctionTemplate>::New(v8Isolate, proxyTemplate); |
| } |
| return proxyTemplateLocal; |
| } |
| |
| void JsInterop::jsInteropGetterCallback(Dart_NativeArguments args) |
| { |
| JsInteropInternal::getterCallback(args); |
| } |
| |
| void JsInterop::jsInteropCallMethodCallback(Dart_NativeArguments args) |
| { |
| JsInteropInternal::callMethodCallback(args); |
| } |
| |
| void JsInterop::jsInteropContextCallback(Dart_NativeArguments args) |
| { |
| return JsInteropInternal::contextCallback(args); |
| } |
| |
| } |
