string16 NativeTextfieldWin::GetSelectedText() const
{
// Figure out the length of the selection.
long start;
long end;
GetSel(start, end);
// Grab the selected text.
std::wstring str;
GetSelText(WriteInto(&str, end-start+1));
return str;
}
string16 NativeTextfieldWin::GetText() const
{
int len = GetTextLength() + 1;
std::wstring str;
GetWindowText(WriteInto(&str, len), len);
// The text get from GetWindowText() might be wrapped with explicit bidi
// control characters. Refer to UpdateText() for detail. Without such
// wrapping, in RTL chrome, a pure LTR string ending with parenthesis will
// not be displayed correctly in a textfield. For example, "Yahoo!" will be
// displayed as "!Yahoo", and "Google (by default)" will be displayed as
// "(Google (by default".
return base::i18n::StripWrappingBidiControlCharacters(WideToUTF16(str));
}
std::wstring SysMultiByteToWide(const std::string& mb_str, CodePage code_page)
{
if (mb_str.empty())
return std::wstring();
// |char_count| does not include null-terminate.
int mb_str_length = static_cast<int>(mb_str.length());
int char_count = MultiByteToWideChar(static_cast<unsigned>(code_page), 0,
mb_str.data(), mb_str_length,
nullptr, 0);
if (char_count == 0)
return std::wstring();
std::wstring wide_str;
wchar_t* ptr = WriteInto(&wide_str, char_count + 1);
MultiByteToWideChar(static_cast<unsigned>(code_page), 0, mb_str.data(), mb_str_length, ptr, char_count);
return wide_str;
}
std::string SysWideToMultiByte(const std::wstring& wide_str, CodePage code_page)
{
if (wide_str.empty())
return std::string();
int wide_str_length = static_cast<int>(wide_str.length());
int char_count = WideCharToMultiByte(static_cast<int>(code_page), 0,
wide_str.data(), wide_str_length,
nullptr, 0,
nullptr, nullptr);
if (char_count == 0)
return std::string();
std::string mb_str;
char* ptr = WriteInto(&mb_str, char_count + 1);
WideCharToMultiByte(static_cast<int>(code_page), 0, wide_str.data(), wide_str_length,
ptr, char_count, nullptr, nullptr);
return mb_str;
}
std::string RandBytesAsString(size_t length)
{
std::string result;
RandBytes(WriteInto(&result, length + 1), length);
return result;
}
