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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#pragma once
#include <sal/config.h>
#include <cstdint>
#include <limits>
#include <stdexcept>
#include <typeinfo>
#include <emscripten/bind.h>
#include <com/sun/star/uno/Reference.hxx>
#include <com/sun/star/uno/Sequence.hxx>
#include <com/sun/star/uno/Type.hxx>
#include <cppu/unotype.hxx>
#include <sal/types.h>
template <typename T> struct emscripten::smart_ptr_trait<css::uno::Reference<T>>
{
using PointerType = css::uno::Reference<T>;
using element_type = T;
static T* get(css::uno::Reference<T> const& ptr) { return ptr.get(); }
static sharing_policy get_sharing_policy() { return sharing_policy::INTRUSIVE; }
static css::uno::Reference<T>* share(T* v) { return new css::uno::Reference<T>(v); }
static css::uno::Reference<T>* construct_null() { return new css::uno::Reference<T>(); }
};
namespace unoembindhelpers
{
namespace detail
{
void registerUnoType(css::uno::Type const& type, std::type_info const* id);
}
enum class uno_Sequence
{
FromSize
};
template <typename T> struct UnoInOutParam
{
UnoInOutParam() {}
UnoInOutParam(T the_value)
: value(the_value)
{
}
T get() const { return value; }
void set(T the_value) { value = the_value; }
T value;
};
inline void checkSequenceSize(sal_Int32 size)
{
if (size < 0)
{
throw std::invalid_argument("negative size");
}
}
template <typename T>
void checkSequenceAccess(css::uno::Sequence<T> const& sequence, sal_Int32 index)
{
if (index < 0 || index >= sequence.getLength())
{
throw std::out_of_range("index out of bounds");
}
}
template <typename T> void registerUnoType()
{
detail::registerUnoType(cppu::UnoType<T>::get(), &typeid(T));
}
template <typename T> void registerSequence(char const* name)
{
emscripten::class_<css::uno::Sequence<T>>(name)
.constructor(+[](emscripten::val const& members) {
auto const len = members["length"].as<std::uint32_t>();
if (len > std::numeric_limits<sal_Int32>::max())
{
throw std::length_error("JavaScript array length too large for C++ UNO sequence");
}
css::uno::Sequence<T> seq(len);
auto const p = seq.getArray();
for (std::uint32_t i = 0; i != len; ++i)
{
p[i] = members[i].as<T>();
}
return seq;
})
.constructor(+[](sal_Int32 size, [[maybe_unused]] uno_Sequence) {
checkSequenceSize(size);
return css::uno::Sequence<T>(size);
})
.function("resize",
+[](css::uno::Sequence<T>& self, sal_Int32 size) {
checkSequenceSize(size);
self.realloc(size);
})
.function("size", &css::uno::Sequence<T>::getLength)
.function("get",
+[](css::uno::Sequence<T> const& self, sal_Int32 index) -> T const& {
checkSequenceAccess(self, index);
return self[index];
})
.function("set", +[](css::uno::Sequence<T>& self, sal_Int32 index, T const& value) {
checkSequenceAccess(self, index);
self.getArray()[index] = value;
});
registerUnoType<css::uno::Sequence<T>>();
}
template <typename T> void registerInOutParameter(char const* name)
{
emscripten::class_<UnoInOutParam<T>>(name).constructor().template constructor<T>().property(
"val", &UnoInOutParam<T>::get, &UnoInOutParam<T>::set);
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
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