Class: Reline::Windows
- Inherits:
-
Object
- Object
- Reline::Windows
- Defined in:
- lib/reline/windows.rb
Defined Under Namespace
Classes: Win32API
Constant Summary collapse
- RAW_KEYSTROKE_CONFIG =
{ [224, 72] => :ed_prev_history, # ↑ [224, 80] => :ed_next_history, # ↓ [224, 77] => :ed_next_char, # → [224, 75] => :ed_prev_char, # ← [224, 83] => :key_delete, # Del [224, 71] => :ed_move_to_beg, # Home [224, 79] => :ed_move_to_end, # End [ 0, 41] => :ed_unassigned, # input method on/off [ 0, 72] => :ed_prev_history, # ↑ [ 0, 80] => :ed_next_history, # ↓ [ 0, 77] => :ed_next_char, # → [ 0, 75] => :ed_prev_char, # ← [ 0, 83] => :key_delete, # Del [ 0, 71] => :ed_move_to_beg, # Home [ 0, 79] => :ed_move_to_end # End }
- VK_MENU =
0x12
- VK_LMENU =
0xA4
- VK_CONTROL =
0x11
- VK_SHIFT =
0x10
- STD_INPUT_HANDLE =
-10
- STD_OUTPUT_HANDLE =
-11
- WINDOW_BUFFER_SIZE_EVENT =
0x04
- FILE_TYPE_PIPE =
0x0003
- FILE_NAME_INFO =
2
- @@getwch =
Win32API.new('msvcrt', '_getwch', [], 'I')
- @@kbhit =
Win32API.new('msvcrt', '_kbhit', [], 'I')
- @@GetKeyState =
Win32API.new('user32', 'GetKeyState', ['L'], 'L')
- @@GetConsoleScreenBufferInfo =
Win32API.new('kernel32', 'GetConsoleScreenBufferInfo', ['L', 'P'], 'L')
- @@SetConsoleCursorPosition =
Win32API.new('kernel32', 'SetConsoleCursorPosition', ['L', 'L'], 'L')
- @@GetStdHandle =
Win32API.new('kernel32', 'GetStdHandle', ['L'], 'L')
- @@FillConsoleOutputCharacter =
Win32API.new('kernel32', 'FillConsoleOutputCharacter', ['L', 'L', 'L', 'L', 'P'], 'L')
- @@ScrollConsoleScreenBuffer =
Win32API.new('kernel32', 'ScrollConsoleScreenBuffer', ['L', 'P', 'P', 'L', 'P'], 'L')
- @@hConsoleHandle =
@@GetStdHandle.call(STD_OUTPUT_HANDLE)
- @@hConsoleInputHandle =
@@GetStdHandle.call(STD_INPUT_HANDLE)
- @@GetNumberOfConsoleInputEvents =
Win32API.new('kernel32', 'GetNumberOfConsoleInputEvents', ['L', 'P'], 'L')
- @@ReadConsoleInput =
Win32API.new('kernel32', 'ReadConsoleInput', ['L', 'P', 'L', 'P'], 'L')
- @@GetFileType =
Win32API.new('kernel32', 'GetFileType', ['L'], 'L')
- @@GetFileInformationByHandleEx =
Win32API.new('kernel32', 'GetFileInformationByHandleEx', ['L', 'I', 'P', 'L'], 'I')
- @@input_buf =
[]
- @@output_buf =
[]
Class Method Summary collapse
- .clear_screen ⇒ Object
- .cursor_pos ⇒ Object
- .deprep(otio) ⇒ Object
- .encoding ⇒ Object
- .erase_after_cursor ⇒ Object
- .get_screen_size ⇒ Object
- .getc ⇒ Object
- .getwch ⇒ Object
- .move_cursor_column(val) ⇒ Object
- .move_cursor_down(val) ⇒ Object
- .move_cursor_up(val) ⇒ Object
- .msys_tty?(io = @@hConsoleInputHandle) ⇒ Boolean
- .prep ⇒ Object
- .scroll_down(val) ⇒ Object
- .set_screen_size(rows, columns) ⇒ Object
- .set_winch_handler(&handler) ⇒ Object
- .ungetc(c) ⇒ Object
- .win? ⇒ Boolean
Class Method Details
.clear_screen ⇒ Object
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# File 'lib/reline/windows.rb', line 251 def self.clear_screen # TODO: Use FillConsoleOutputCharacter and FillConsoleOutputAttribute write "\e[2J" write "\e[1;1H" end |
.cursor_pos ⇒ Object
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# File 'lib/reline/windows.rb', line 207 def self.cursor_pos csbi = 0.chr * 22 @@GetConsoleScreenBufferInfo.call(@@hConsoleHandle, csbi) x = csbi[4, 2].unpack('s*').first y = csbi[6, 2].unpack('s*').first Reline::CursorPos.new(x, y) end |
.deprep(otio) ⇒ Object
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# File 'lib/reline/windows.rb', line 270 def self.deprep(otio) # do nothing end |
.encoding ⇒ Object
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# File 'lib/reline/windows.rb', line 4 def self.encoding Encoding::UTF_8 end |
.erase_after_cursor ⇒ Object
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# File 'lib/reline/windows.rb', line 235 def self.erase_after_cursor csbi = 0.chr * 24 @@GetConsoleScreenBufferInfo.call(@@hConsoleHandle, csbi) cursor = csbi[4, 4].unpack('L').first written = 0.chr * 4 @@FillConsoleOutputCharacter.call(@@hConsoleHandle, 0x20, get_screen_size.last - cursor_pos.x, cursor, written) end |
.get_screen_size ⇒ Object
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# File 'lib/reline/windows.rb', line 201 def self.get_screen_size csbi = 0.chr * 22 @@GetConsoleScreenBufferInfo.call(@@hConsoleHandle, csbi) csbi[0, 4].unpack('SS').reverse end |
.getc ⇒ Object
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# File 'lib/reline/windows.rb', line 149 def self.getc num_of_events = 0.chr * 8 while @@GetNumberOfConsoleInputEvents.(@@hConsoleInputHandle, num_of_events) != 0 and num_of_events.unpack('L').first > 0 input_record = 0.chr * 18 read_event = 0.chr * 4 if @@ReadConsoleInput.(@@hConsoleInputHandle, input_record, 1, read_event) != 0 event = input_record[0, 2].unpack('s*').first if event == WINDOW_BUFFER_SIZE_EVENT @@winch_handler.() end end end unless @@output_buf.empty? return @@output_buf.shift end input = getwch = (@@GetKeyState.call(VK_LMENU) & 0x80) != 0 control = (@@GetKeyState.call(VK_CONTROL) & 0x80) != 0 shift = (@@GetKeyState.call(VK_SHIFT) & 0x80) != 0 force_enter = !input.instance_of?(Array) && (control or shift) && input == 0x0D if force_enter # It's treated as Meta+Enter on Windows @@output_buf.push("\e".ord) @@output_buf.push(input) else case input when 0x00 = false @@output_buf.push(input) input = getwch @@output_buf.push(*input) when 0xE0 @@output_buf.push(input) input = getwch @@output_buf.push(*input) when 0x03 @@output_buf.push(input) else @@output_buf.push(input) end end if "\e".ord else @@output_buf.shift end end |
.getwch ⇒ Object
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# File 'lib/reline/windows.rb', line 123 def self.getwch unless @@input_buf.empty? return @@input_buf.shift end while @@kbhit.call == 0 sleep(0.001) end until @@kbhit.call == 0 ret = @@getwch.call if ret == 0 or ret == 0xE0 @@input_buf << ret ret = @@getwch.call @@input_buf << ret return @@input_buf.shift end begin bytes = ret.chr(Encoding::UTF_8).bytes @@input_buf.push(*bytes) rescue Encoding::UndefinedConversionError @@input_buf << ret @@input_buf << @@getwch.call if ret == 224 end end @@input_buf.shift end |
.move_cursor_column(val) ⇒ Object
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# File 'lib/reline/windows.rb', line 215 def self.move_cursor_column(val) @@SetConsoleCursorPosition.call(@@hConsoleHandle, cursor_pos.y * 65536 + val) end |
.move_cursor_down(val) ⇒ Object
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# File 'lib/reline/windows.rb', line 227 def self.move_cursor_down(val) if val > 0 @@SetConsoleCursorPosition.call(@@hConsoleHandle, (cursor_pos.y + val) * 65536 + cursor_pos.x) elsif val < 0 move_cursor_up(-val) end end |
.move_cursor_up(val) ⇒ Object
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# File 'lib/reline/windows.rb', line 219 def self.move_cursor_up(val) if val > 0 @@SetConsoleCursorPosition.call(@@hConsoleHandle, (cursor_pos.y - val) * 65536 + cursor_pos.x) elsif val < 0 move_cursor_down(-val) end end |
.msys_tty?(io = @@hConsoleInputHandle) ⇒ Boolean
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# File 'lib/reline/windows.rb', line 99 def self.msys_tty?(io=@@hConsoleInputHandle) # check if fd is a pipe if @@GetFileType.call(io) != FILE_TYPE_PIPE return false end bufsize = 1024 p_buffer = "\0" * bufsize res = @@GetFileInformationByHandleEx.call(io, FILE_NAME_INFO, p_buffer, bufsize - 2) return false if res == 0 # get pipe name: p_buffer layout is: # struct _FILE_NAME_INFO { # DWORD FileNameLength; # WCHAR FileName[1]; # } FILE_NAME_INFO len = p_buffer[0, 4].unpack("L")[0] name = p_buffer[4, len].encode(Encoding::UTF_8, Encoding::UTF_16LE, invalid: :replace) # Check if this could be a MSYS2 pty pipe ('\msys-XXXX-ptyN-XX') # or a cygwin pty pipe ('\cygwin-XXXX-ptyN-XX') name =~ /(msys-|cygwin-).*-pty/ ? true : false end |
.prep ⇒ Object
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# File 'lib/reline/windows.rb', line 265 def self.prep # do nothing nil end |
.scroll_down(val) ⇒ Object
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# File 'lib/reline/windows.rb', line 243 def self.scroll_down(val) return if val.zero? scroll_rectangle = [0, val, get_screen_size.last, get_screen_size.first].pack('s4') destination_origin = 0 # y * 65536 + x fill = [' '.ord, 0].pack('SS') @@ScrollConsoleScreenBuffer.call(@@hConsoleHandle, scroll_rectangle, nil, destination_origin, fill) end |
.set_screen_size(rows, columns) ⇒ Object
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# File 'lib/reline/windows.rb', line 257 def self.set_screen_size(rows, columns) raise NotImplementedError end |
.set_winch_handler(&handler) ⇒ Object
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# File 'lib/reline/windows.rb', line 261 def self.set_winch_handler(&handler) @@winch_handler = handler end |
.ungetc(c) ⇒ Object
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# File 'lib/reline/windows.rb', line 197 def self.ungetc(c) @@output_buf.unshift(c) end |
.win? ⇒ Boolean
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# File 'lib/reline/windows.rb', line 8 def self.win? true end |