mirror of
https://github.com/juce-framework/JUCE.git
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286 lines
8.7 KiB
C++
286 lines
8.7 KiB
C++
/*
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==============================================================================
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This file is part of the JUCE framework.
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Copyright (c) Raw Material Software Limited
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JUCE is an open source framework subject to commercial or open source
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licensing.
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By downloading, installing, or using the JUCE framework, or combining the
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JUCE framework with any other source code, object code, content or any other
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copyrightable work, you agree to the terms of the JUCE End User Licence
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Agreement, and all incorporated terms including the JUCE Privacy Policy and
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the JUCE Website Terms of Service, as applicable, which will bind you. If you
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do not agree to the terms of these agreements, we will not license the JUCE
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framework to you, and you must discontinue the installation or download
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process and cease use of the JUCE framework.
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JUCE End User Licence Agreement: https://juce.com/legal/juce-8-licence/
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JUCE Privacy Policy: https://juce.com/juce-privacy-policy
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JUCE Website Terms of Service: https://juce.com/juce-website-terms-of-service/
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Or:
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You may also use this code under the terms of the AGPLv3:
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https://www.gnu.org/licenses/agpl-3.0.en.html
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THE JUCE FRAMEWORK IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL
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WARRANTIES, WHETHER EXPRESSED OR IMPLIED, INCLUDING WARRANTY OF
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MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, ARE DISCLAIMED.
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==============================================================================
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*/
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namespace juce
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{
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JUCE_BEGIN_IGNORE_WARNINGS_GCC_LIKE ("-Wsubobject-linkage")
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class JSObject::Impl
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{
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public:
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using ValuePtr = detail::qjs::QuickJSContext::ValuePtr;
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explicit Impl (detail::QuickJSWrapper* engineIn)
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: Impl (engineIn,
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{ detail::qjs::JS_GetGlobalObject (engineIn->getQuickJSContext()), engineIn->getQuickJSContext() })
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{
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}
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Impl (const Impl& other)
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: Impl (other.engine,
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{ detail::qjs::JS_DupValue (other.engine->getQuickJSContext(), other.valuePtr.get()),
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other.engine->getQuickJSContext() })
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{
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}
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std::unique_ptr<Impl> getChild (const Identifier& prop) const
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{
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return rawToUniquePtr (new Impl (engine, { detail::getOrCreateProperty (engine->getQuickJSContext(),
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valuePtr.get(),
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prop.toString().toRawUTF8()),
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engine->getQuickJSContext() }));
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}
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std::unique_ptr<Impl> getChild (int64 index) const
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{
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jassert (isArray());
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return rawToUniquePtr (new Impl (engine, valuePtr[detail::toUint32 (index)]));
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}
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bool hasProperty (const Identifier& name) const
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{
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return detail::hasProperty (engine->getQuickJSContext(), valuePtr.get(), name.toString().toRawUTF8());
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}
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void setProperty (const Identifier& name, const var& value) const
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{
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auto* ctx = engine->getQuickJSContext();
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detail::qjs::JS_SetPropertyStr (ctx, valuePtr.get(), name.toString().toRawUTF8(), detail::juceToQuickJs (value, ctx));
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}
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void setProperty (int64 index, const var& value) const
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{
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auto* ctx = engine->getQuickJSContext();
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detail::qjs::JS_SetPropertyInt64 (ctx, valuePtr.get(), index, detail::juceToQuickJs (value, ctx));
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}
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var get() const
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{
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if (auto* opaque = detail::qjs::JS_GetOpaque (valuePtr.get(), detail::DynamicObjectWrapper::getClassId()))
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if (detail::DynamicObjectWrapper::getDynamicObjects().count (opaque) != 0)
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return { static_cast<detail::DynamicObjectWrapper*> (opaque)->object.get() };
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auto* ctx = engine->getQuickJSContext();
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return detail::discardError (detail::quickJSToJuce ({ detail::qjs::JS_DupValue (ctx, valuePtr.get()), ctx }));
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}
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detail::VarOrError invokeMethod (const Identifier& methodName, Span<const var> args) const
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{
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engine->resetTimeout();
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if (! hasProperty (methodName))
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{
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jassertfalse;
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return {};
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}
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auto* ctx = engine->getQuickJSContext();
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const auto methodAtom = JS_NewAtom (ctx, methodName.toString().toRawUTF8());
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ScopeGuard scope { [&] { detail::qjs::JS_FreeAtom (ctx, methodAtom); } };
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detail::JSFunctionArguments arguments { ctx, args };
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ValuePtr returnVal { detail::qjs::JS_Invoke (ctx,
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valuePtr.get(),
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methodAtom,
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arguments.getSize(),
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arguments.getArguments()),
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ctx };
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return detail::quickJSToJuce (returnVal);
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}
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NamedValueSet getProperties() const
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{
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NamedValueSet result;
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auto* ctx = engine->getQuickJSContext();
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ValuePtr names { detail::qjs::JS_GetOwnPropertyNames2 (ctx,
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valuePtr.get(),
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detail::qjs::JS_GPN_ENUM_ONLY | detail::qjs::JS_GPN_STRING_MASK,
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detail::qjs::JS_ITERATOR_KIND_KEY),
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ctx };
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if (auto v = detail::discardError (detail::quickJSToJuce (names)); const auto* propertyNames = v.getArray())
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{
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for (const auto& name : *propertyNames)
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{
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if (name.isString())
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{
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const Identifier prop { name.toString() };
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result.set (prop, getChild (prop)->get());
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}
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}
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}
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return result;
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}
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bool isArray() const
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{
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return detail::qjs::JS_IsArray (engine->getQuickJSContext(), valuePtr.get());
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}
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int64 getSize() const
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{
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if (! isArray())
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{
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jassertfalse;
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return 0;
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}
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auto lengthProp = valuePtr["length"];
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uint32_t length = 0;
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detail::qjs::JS_ToUint32 (engine->getQuickJSContext(), &length, lengthProp.get());
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return (int64) length;
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}
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private:
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Impl (detail::QuickJSWrapper* e, ValuePtr&& ptr)
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: engine (e), valuePtr (std::move (ptr))
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{
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}
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detail::QuickJSWrapper* engine = nullptr;
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ValuePtr valuePtr;
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};
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JUCE_END_IGNORE_WARNINGS_GCC_LIKE
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JSObject::JSObject (detail::QuickJSWrapper* engine)
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: impl (new Impl (engine))
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{
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}
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JSObject::JSObject (std::unique_ptr<Impl> implIn)
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: impl (std::move (implIn))
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{
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}
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JSObject::JSObject (const JSObject& other)
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: impl (new Impl (*other.impl))
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{
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}
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JSObject::~JSObject() = default;
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JSObject::JSObject (JSObject&&) noexcept = default;
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JSObject& JSObject::operator= (const JSObject& other)
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{
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JSObject { other }.swap (*this);
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return *this;
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}
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JSObject& JSObject::operator= (JSObject&& other) noexcept = default;
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JSObject JSObject::getChild (const Identifier& name) const
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{
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return JSObject { impl->getChild (name) };
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}
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JSObject JSObject::operator[] (const Identifier& name) const
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{
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return getChild (name);
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}
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bool JSObject::isArray() const
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{
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return impl->isArray();
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}
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int64 JSObject::getSize() const
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{
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return impl->getSize();
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}
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JSObject JSObject::getChild (int64 index) const
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{
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jassert (isArray());
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return JSObject { impl->getChild (index) };
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}
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JSObject JSObject::operator[] (int64 index) const
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{
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return getChild (index);
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}
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bool JSObject::hasProperty (const Identifier& name) const
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{
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return impl->hasProperty (name);
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}
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var JSObject::get() const
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{
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return impl->get();
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}
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void JSObject::setProperty (const Identifier& name, const var& value) const
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{
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impl->setProperty (name, value);
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}
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void JSObject::setProperty (int64 index, const var& value) const
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{
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impl->setProperty (index, value);
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}
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var JSObject::invokeMethod (const Identifier& methodName,
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Span<const var> args,
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Result* result) const
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{
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const auto varOrError = impl->invokeMethod (methodName, args);
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if (result != nullptr)
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{
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const auto* e = std::get_if<String> (&varOrError);
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*result = e != nullptr ? Result::fail (*e) : Result::ok();
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}
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return detail::discardError (varOrError);
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}
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NamedValueSet JSObject::getProperties() const
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{
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return impl->getProperties();
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}
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void JSObject::swap (JSObject& other) noexcept
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{
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std::swap (impl, other.impl);
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}
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} // namespace juce
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