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#ifdef OS_WIN

#include "gui/character_pad/windows_selection_handler.h"

#include <windows.h>
#include <QtCore/QString>
#include <vector>

#include "base/logging.h"

namespace mozc {
namespace gui {

WindowsSelectionHandler::WindowsSelectionHandler() {}
WindowsSelectionHandler::~WindowsSelectionHandler() {}

void WindowsSelectionHandler::Select(const QString &str) {
  vector<INPUT> inputs;
  for (int i = 0; i < str.size(); ++i) {
    INPUT input = { 0 };
    KEYBDINPUT kb = { 0 };
    const wchar_t ucs2 = static_cast<wchar_t>(str[i].unicode());

    // down
    kb.wScan = ucs2;
    kb.dwFlags = KEYEVENTF_UNICODE;
    input.type = INPUT_KEYBOARD;
    input.ki = kb;
    inputs.push_back(input);

    // up
    kb.wScan = ucs2;
    kb.dwFlags = KEYEVENTF_UNICODE | KEYEVENTF_KEYUP;
    input.type = INPUT_KEYBOARD;
    input.ki = kb;
    inputs.push_back(input);
  }

  if (inputs.empty()) {
    return;
  }

  if (!::SendInput(static_cast<UINT>(inputs.size()),
                   &inputs[0], sizeof(inputs[0]))) {
    LOG(ERROR)<< "SendInput failed: " << ::GetLastError();
    return;
  }
}

}  // namespace gui
}  // namespace mozc

#endif   // OS_WIN