diff options
Diffstat (limited to 'lib/reline/windows.rb')
| -rw-r--r-- | lib/reline/windows.rb | 183 |
1 files changed, 130 insertions, 53 deletions
diff --git a/lib/reline/windows.rb b/lib/reline/windows.rb index 5bbf1e9d57..ee3f73e383 100644 --- a/lib/reline/windows.rb +++ b/lib/reline/windows.rb @@ -1,6 +1,8 @@ require 'fiddle/import' class Reline::Windows + RESET_COLOR = "\e[0m" + def self.encoding Encoding::UTF_8 end @@ -85,7 +87,7 @@ class Reline::Windows def call(*args) import = @proto.split("") args.each_with_index do |x, i| - args[i], = [x == 0 ? nil : x].pack("p").unpack(POINTER_TYPE) if import[i] == "S" + args[i], = [x == 0 ? nil : +x].pack("p").unpack(POINTER_TYPE) if import[i] == "S" args[i], = [x].pack("I").unpack("i") if import[i] == "I" end ret, = @func.call(*args) @@ -95,7 +97,7 @@ class Reline::Windows end VK_RETURN = 0x0D - VK_MENU = 0x12 + VK_MENU = 0x12 # ALT key VK_LMENU = 0xA4 VK_CONTROL = 0x11 VK_SHIFT = 0x10 @@ -168,7 +170,9 @@ class Reline::Windows @@input_buf = [] @@output_buf = [] - def self.msys_tty?(io=@@hConsoleInputHandle) + @@output = STDOUT + + def self.msys_tty?(io = @@hConsoleInputHandle) # check if fd is a pipe if @@GetFileType.call(io) != FILE_TYPE_PIPE return false @@ -213,8 +217,29 @@ class Reline::Windows [ { control_keys: :SHIFT, virtual_key_code: VK_TAB }, [27, 91, 90] ], ] + @@hsg = nil + def self.process_key_event(repeat_count, virtual_key_code, virtual_scan_code, char_code, control_key_state) + # high-surrogate + if 0xD800 <= char_code and char_code <= 0xDBFF + @@hsg = char_code + return + end + # low-surrogate + if 0xDC00 <= char_code and char_code <= 0xDFFF + if @@hsg + char_code = 0x10000 + (@@hsg - 0xD800) * 0x400 + char_code - 0xDC00 + @@hsg = nil + else + # no high-surrogate. ignored. + return + end + else + # ignore high-surrogate without low-surrogate if there + @@hsg = nil + end + key = KeyEventRecord.new(virtual_key_code, char_code, control_key_state) match = KEY_MAP.find { |args,| key.matches?(**args) } @@ -226,40 +251,53 @@ class Reline::Windows # no char, only control keys return if key.char_code == 0 and key.control_keys.any? - @@output_buf.push("\e".ord) if key.control_keys.include?(:ALT) + @@output_buf.push("\e".ord) if key.control_keys.include?(:ALT) and !key.control_keys.include?(:CTRL) @@output_buf.concat(key.char.bytes) end def self.check_input_event num_of_events = 0.chr * 8 - while @@output_buf.empty? #or true - next if @@WaitForSingleObject.(@@hConsoleInputHandle, 100) != 0 # max 0.1 sec - next if @@GetNumberOfConsoleInputEvents.(@@hConsoleInputHandle, num_of_events) == 0 or num_of_events.unpack('L').first == 0 - input_record = 0.chr * 18 + while @@output_buf.empty? + Reline.core.line_editor.handle_signal + if @@WaitForSingleObject.(@@hConsoleInputHandle, 100) != 0 # max 0.1 sec + # prevent for background consolemode change + @@legacy_console = (getconsolemode() & ENABLE_VIRTUAL_TERMINAL_PROCESSING == 0) + next + end + next if @@GetNumberOfConsoleInputEvents.(@@hConsoleInputHandle, num_of_events) == 0 or num_of_events.unpack1('L') == 0 + input_records = 0.chr * 20 * 80 read_event = 0.chr * 4 - if @@ReadConsoleInputW.(@@hConsoleInputHandle, input_record, 1, read_event) != 0 - event = input_record[0, 2].unpack('s*').first - case event - when WINDOW_BUFFER_SIZE_EVENT - @@winch_handler.() - when KEY_EVENT - key_down = input_record[4, 4].unpack('l*').first - repeat_count = input_record[8, 2].unpack('s*').first - virtual_key_code = input_record[10, 2].unpack('s*').first - virtual_scan_code = input_record[12, 2].unpack('s*').first - char_code = input_record[14, 2].unpack('S*').first - control_key_state = input_record[16, 2].unpack('S*').first - is_key_down = key_down.zero? ? false : true - if is_key_down - process_key_event(repeat_count, virtual_key_code, virtual_scan_code, char_code, control_key_state) + if @@ReadConsoleInputW.(@@hConsoleInputHandle, input_records, 80, read_event) != 0 + read_events = read_event.unpack1('L') + 0.upto(read_events) do |idx| + input_record = input_records[idx * 20, 20] + event = input_record[0, 2].unpack1('s*') + case event + when WINDOW_BUFFER_SIZE_EVENT + @@winch_handler.() + when KEY_EVENT + key_down = input_record[4, 4].unpack1('l*') + repeat_count = input_record[8, 2].unpack1('s*') + virtual_key_code = input_record[10, 2].unpack1('s*') + virtual_scan_code = input_record[12, 2].unpack1('s*') + char_code = input_record[14, 2].unpack1('S*') + control_key_state = input_record[16, 2].unpack1('S*') + is_key_down = key_down.zero? ? false : true + if is_key_down + process_key_event(repeat_count, virtual_key_code, virtual_scan_code, char_code, control_key_state) + end end end end end end - def self.getc + def self.with_raw_input + yield + end + + def self.getc(_timeout_second) check_input_event @@output_buf.shift end @@ -273,7 +311,7 @@ class Reline::Windows end def self.empty_buffer? - if not @@input_buf.empty? + if not @@output_buf.empty? false elsif @@kbhit.call == 0 true @@ -282,17 +320,37 @@ class Reline::Windows end end - def self.get_screen_size + def self.get_console_screen_buffer_info + # CONSOLE_SCREEN_BUFFER_INFO + # [ 0,2] dwSize.X + # [ 2,2] dwSize.Y + # [ 4,2] dwCursorPositions.X + # [ 6,2] dwCursorPositions.Y + # [ 8,2] wAttributes + # [10,2] srWindow.Left + # [12,2] srWindow.Top + # [14,2] srWindow.Right + # [16,2] srWindow.Bottom + # [18,2] dwMaximumWindowSize.X + # [20,2] dwMaximumWindowSize.Y csbi = 0.chr * 22 - @@GetConsoleScreenBufferInfo.call(@@hConsoleHandle, csbi) + return if @@GetConsoleScreenBufferInfo.call(@@hConsoleHandle, csbi) == 0 + csbi + end + + def self.get_screen_size + unless csbi = get_console_screen_buffer_info + return [1, 1] + end csbi[0, 4].unpack('SS').reverse end 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 + unless csbi = get_console_screen_buffer_info + return Reline::CursorPos.new(0, 0) + end + x = csbi[4, 2].unpack1('s') + y = csbi[6, 2].unpack1('s') Reline::CursorPos.new(x, y) end @@ -312,6 +370,7 @@ class Reline::Windows def self.move_cursor_down(val) if val > 0 + return unless csbi = get_console_screen_buffer_info screen_height = get_screen_size.first y = cursor_pos.y + val y = screen_height - 1 if y > (screen_height - 1) @@ -322,36 +381,54 @@ class Reline::Windows end def self.erase_after_cursor - csbi = 0.chr * 24 - @@GetConsoleScreenBufferInfo.call(@@hConsoleHandle, csbi) - cursor = csbi[4, 4].unpack('L').first + return unless csbi = get_console_screen_buffer_info + attributes = csbi[8, 2].unpack1('S') + cursor = csbi[4, 4].unpack1('L') written = 0.chr * 4 @@FillConsoleOutputCharacter.call(@@hConsoleHandle, 0x20, get_screen_size.last - cursor_pos.x, cursor, written) - @@FillConsoleOutputAttribute.call(@@hConsoleHandle, 0, get_screen_size.last - cursor_pos.x, cursor, written) + @@FillConsoleOutputAttribute.call(@@hConsoleHandle, attributes, get_screen_size.last - cursor_pos.x, cursor, written) end def self.scroll_down(val) - return if val.zero? - screen_height = get_screen_size.first - val = screen_height - 1 if val > (screen_height - 1) - 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) + return if val < 0 + return unless csbi = get_console_screen_buffer_info + buffer_width, buffer_lines, x, y, attributes, window_left, window_top, window_bottom = csbi.unpack('ssssSssx2s') + screen_height = window_bottom - window_top + 1 + val = screen_height if val > screen_height + + if @@legacy_console || window_left != 0 + # unless ENABLE_VIRTUAL_TERMINAL, + # if srWindow.Left != 0 then it's conhost.exe hosted console + # and puts "\n" causes horizontal scroll. its glitch. + # FYI irb write from culumn 1, so this gives no gain. + scroll_rectangle = [0, val, buffer_width, buffer_lines - val].pack('s4') + destination_origin = 0 # y * 65536 + x + fill = [' '.ord, attributes].pack('SS') + @@ScrollConsoleScreenBuffer.call(@@hConsoleHandle, scroll_rectangle, nil, destination_origin, fill) + else + origin_x = x + 1 + origin_y = y - window_top + 1 + @@output.write [ + (origin_y != screen_height) ? "\e[#{screen_height};H" : nil, + "\n" * val, + (origin_y != screen_height or !x.zero?) ? "\e[#{origin_y};#{origin_x}H" : nil + ].join + end end def self.clear_screen - csbi = 0.chr * 22 - return if @@GetConsoleScreenBufferInfo.call(@@hConsoleHandle, csbi) == 0 - buffer_width = csbi[0, 2].unpack('S').first - attributes = csbi[8, 2].unpack('S').first - _window_left, window_top, _window_right, window_bottom = *csbi[10,8].unpack('S*') - fill_length = buffer_width * (window_bottom - window_top + 1) - screen_topleft = window_top * 65536 - written = 0.chr * 4 - @@FillConsoleOutputCharacter.call(@@hConsoleHandle, 0x20, fill_length, screen_topleft, written) - @@FillConsoleOutputAttribute.call(@@hConsoleHandle, attributes, fill_length, screen_topleft, written) - @@SetConsoleCursorPosition.call(@@hConsoleHandle, screen_topleft) + if @@legacy_console + return unless csbi = get_console_screen_buffer_info + buffer_width, _buffer_lines, attributes, window_top, window_bottom = csbi.unpack('ss@8S@12sx2s') + fill_length = buffer_width * (window_bottom - window_top + 1) + screen_topleft = window_top * 65536 + written = 0.chr * 4 + @@FillConsoleOutputCharacter.call(@@hConsoleHandle, 0x20, fill_length, screen_topleft, written) + @@FillConsoleOutputAttribute.call(@@hConsoleHandle, attributes, fill_length, screen_topleft, written) + @@SetConsoleCursorPosition.call(@@hConsoleHandle, screen_topleft) + else + @@output.write "\e[2J" "\e[H" + end end def self.set_screen_size(rows, columns) |