// Copyright 2018 yuzu emulator team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <cstring>
#include "common/assert.h"
#include "common/string_util.h"
#include "core/core.h"
#include "core/frontend/applets/software_keyboard.h"
#include "core/hle/result.h"
#include "core/hle/service/am/am.h"
#include "core/hle/service/am/applets/software_keyboard.h"
namespace Service::AM::Applets {
constexpr std::size_t SWKBD_OUTPUT_BUFFER_SIZE = 0x7D8;
constexpr std::size_t SWKBD_OUTPUT_INTERACTIVE_BUFFER_SIZE = 0x7D4;
constexpr std::size_t DEFAULT_MAX_LENGTH = 500;
constexpr bool INTERACTIVE_STATUS_OK = false;
static Core::Frontend::SoftwareKeyboardParameters ConvertToFrontendParameters(
KeyboardConfig config, std::u16string initial_text) {
Core::Frontend::SoftwareKeyboardParameters params{};
params.submit_text = Common::UTF16StringFromFixedZeroTerminatedBuffer(
config.submit_text.data(), config.submit_text.size());
params.header_text = Common::UTF16StringFromFixedZeroTerminatedBuffer(
config.header_text.data(), config.header_text.size());
params.sub_text = Common::UTF16StringFromFixedZeroTerminatedBuffer(config.sub_text.data(),
config.sub_text.size());
params.guide_text = Common::UTF16StringFromFixedZeroTerminatedBuffer(config.guide_text.data(),
config.guide_text.size());
params.initial_text = initial_text;
params.max_length = config.length_limit == 0 ? DEFAULT_MAX_LENGTH : config.length_limit;
params.password = static_cast<bool>(config.is_password);
params.cursor_at_beginning = static_cast<bool>(config.initial_cursor_position);
params.value = static_cast<u8>(config.keyset_disable_bitmask);
return params;
}
SoftwareKeyboard::SoftwareKeyboard(Core::System& system_,
const Core::Frontend::SoftwareKeyboardApplet& frontend_)
: Applet{system_.Kernel()}, frontend(frontend_) {}
SoftwareKeyboard::~SoftwareKeyboard() = default;
void SoftwareKeyboard::Initialize() {
complete = false;
initial_text.clear();
final_data.clear();
Applet::Initialize();
const auto keyboard_config_storage = broker.PopNormalDataToApplet();
ASSERT(keyboard_config_storage != nullptr);
const auto& keyboard_config = keyboard_config_storage->GetData();
ASSERT(keyboard_config.size() >= sizeof(KeyboardConfig));
std::memcpy(&config, keyboard_config.data(), sizeof(KeyboardConfig));
const auto work_buffer_storage = broker.PopNormalDataToApplet();
ASSERT(work_buffer_storage != nullptr);
const auto& work_buffer = work_buffer_storage->GetData();
if (config.initial_string_size == 0)
return;
std::vector<char16_t> string(config.initial_string_size);
std::memcpy(string.data(), work_buffer.data() + config.initial_string_offset,
string.size() * 2);
initial_text = Common::UTF16StringFromFixedZeroTerminatedBuffer(string.data(), string.size());
}
bool SoftwareKeyboard::TransactionComplete() const {
return complete;
}
ResultCode SoftwareKeyboard::GetStatus() const {
return RESULT_SUCCESS;
}
void SoftwareKeyboard::ExecuteInteractive() {
if (complete)
return;
const auto storage = broker.PopInteractiveDataToApplet();
ASSERT(storage != nullptr);
const auto data = storage->GetData();
const auto status = static_cast<bool>(data[0]);
if (status == INTERACTIVE_STATUS_OK) {
complete = true;
} else {
std::array<char16_t, SWKBD_OUTPUT_INTERACTIVE_BUFFER_SIZE / 2 - 2> string;
std::memcpy(string.data(), data.data() + 4, string.size() * 2);
frontend.SendTextCheckDialog(
Common::UTF16StringFromFixedZeroTerminatedBuffer(string.data(), string.size()),
[this] { broker.SignalStateChanged(); });
}
}
void SoftwareKeyboard::Execute() {
if (complete) {
broker.PushNormalDataFromApplet(IStorage{final_data});
broker.SignalStateChanged();
return;
}
const auto parameters = ConvertToFrontendParameters(config, initial_text);
frontend.RequestText([this](std::optional<std::u16string> text) { WriteText(text); },
parameters);
}
void SoftwareKeyboard::WriteText(std::optional<std::u16string> text) {
std::vector<u8> output_main(SWKBD_OUTPUT_BUFFER_SIZE);
if (text.has_value()) {
std::vector<u8> output_sub(SWKBD_OUTPUT_BUFFER_SIZE);
if (config.utf_8) {
const u64 size = text->size() + sizeof(u64);
const auto new_text = Common::UTF16ToUTF8(*text);
std::memcpy(output_sub.data(), &size, sizeof(u64));
std::memcpy(output_sub.data() + 8, new_text.data(),
std::min(new_text.size(), SWKBD_OUTPUT_BUFFER_SIZE - 8));
output_main[0] = INTERACTIVE_STATUS_OK;
std::memcpy(output_main.data() + 4, new_text.data(),
std::min(new_text.size(), SWKBD_OUTPUT_BUFFER_SIZE - 4));
} else {
const u64 size = text->size() * 2 + sizeof(u64);
std::memcpy(output_sub.data(), &size, sizeof(u64));
std::memcpy(output_sub.data() + 8, text->data(),
std::min(text->size() * 2, SWKBD_OUTPUT_BUFFER_SIZE - 8));
output_main[0] = INTERACTIVE_STATUS_OK;
std::memcpy(output_main.data() + 4, text->data(),
std::min(text->size() * 2, SWKBD_OUTPUT_BUFFER_SIZE - 4));
}
complete = !config.text_check;
final_data = output_main;
if (complete) {
broker.PushNormalDataFromApplet(IStorage{output_main});
broker.SignalStateChanged();
} else {
broker.PushInteractiveDataFromApplet(IStorage{output_sub});
}
} else {
output_main[0] = 1;
complete = true;
broker.PushNormalDataFromApplet(IStorage{output_main});
broker.SignalStateChanged();
}
}
} // namespace Service::AM::Applets