| {# |
| # Copyright 2016 Google Inc. All Rights Reserved. |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| #} |
| {% extends "callback-interface-base.cc.template" %} |
| |
| {% block includes %} |
| {{ super() }} |
| #include "cobalt/script/logging_exception_state.h" |
| #include "cobalt/script/mozjs-45/conversion_helpers.h" |
| #include "cobalt/script/mozjs-45/mozjs_callback_interface.h" |
| #include "cobalt/script/mozjs-45/util/exception_helpers.h" |
| #include "third_party/mozjs-45/js/src/jsapi.h" |
| #include "third_party/mozjs-45/js/src/jscntxt.h" |
| {% endblock includes %} |
| |
| {% block using_directives %} |
| {{ super() }} |
| using cobalt::script::LoggingExceptionState; |
| using cobalt::script::mozjs::FromJSValue; |
| using cobalt::script::mozjs::GetCallableForCallbackInterface; |
| using cobalt::script::mozjs::ToJSValue; |
| using cobalt::script::mozjs::util::GetExceptionString; |
| {% endblock using_directives %} |
| |
| {% block implementation %} |
| {% for component in components %} |
| namespace {{component}} { |
| {% endfor %} |
| |
| {{binding_class}}::{{binding_class}}( |
| JSContext* context, |
| JS::HandleObject implementing_object) |
| : context_(context), |
| implementing_object_(context, implementing_object) { } |
| |
| {{binding_class}}::{{binding_class}}( |
| JSContext* context, |
| JS::HandleValue implementing_object_value) |
| : context_(context), |
| implementing_object_(context, implementing_object_value) { } |
| |
| {% for operation in operations %} |
| {% for overload in operation.overloads %} |
| {{overload.type}} {{binding_class}}::{{overload.name}}( |
| const scoped_refptr<script::Wrappable>& callback_this, |
| {% for arg in overload.arguments %} |
| {{arg.arg_type}} {{arg.name}}, |
| {% endfor %} |
| bool* had_exception) const { |
| bool success = false; |
| {% if overload.type != 'void' %} |
| {{overload.type}} cobalt_return_value; |
| {% endif %} |
| JSAutoRequest auto_request(context_); |
| JSExceptionState* previous_exception_state = JS_SaveExceptionState(context_); |
| |
| // This could be set to NULL if it was garbage collected. |
| JS::RootedObject implementing_object(context_, implementing_object_.GetObject()); |
| DLOG_IF(WARNING, !implementing_object) << "Implementing object is NULL."; |
| if (implementing_object) { |
| JSAutoCompartment auto_compartment(context_, implementing_object); |
| |
| // Get callable object. |
| JS::RootedValue callable(context_); |
| if (GetCallableForCallbackInterface(context_, implementing_object, |
| "{{overload.idl_name}}", &callable)) { |
| // Convert the callback_this to a JSValue. |
| JS::RootedValue this_value(context_); |
| ToJSValue(context_, callback_this, &this_value); |
| |
| // Convert arguments. |
| const int kNumArguments = {{overload.arguments|length}}; |
| JS::AutoValueArray<kNumArguments> args(context_); |
| |
| {% for arg in overload.arguments %} |
| ToJSValue(context_, {{arg.name}}, args[{{loop.index0}}]); |
| {% endfor %} |
| |
| // Call the function. |
| JS::RootedValue return_value(context_); |
| JS::RootedFunction function( |
| context_, JS_ValueToFunction(context_, callable)); |
| DCHECK(function); |
| success = JS::Call(context_, this_value, function, args, &return_value); |
| DLOG_IF(WARNING, !success) << "Exception in callback: " |
| << GetExceptionString(context_); |
| {% if overload.type != 'void' %} |
| if (success) { |
| LoggingExceptionState exception_state; |
| FromJSValue(context_, return_value, 0, &exception_state, |
| &cobalt_return_value); |
| success = !exception_state.is_exception_set(); |
| } |
| {% endif %} |
| } |
| } |
| |
| *had_exception = !success; |
| JS_RestoreExceptionState(context_, previous_exception_state); |
| {% if overload.type != 'void' %} |
| return cobalt_return_value; |
| {% endif %} |
| } |
| {% endfor %} |
| {% endfor %} |
| |
| {% for component in components|reverse %} |
| } // namespace {{component}} |
| {% endfor %} |
| {% endblock implementation %} |