Class: TDriver::KeymapUtilities

Inherits:
Object
  • Object
show all
Defined in:
lib/tdriver/util/keymap/keymap.rb

Class Method Summary collapse

Class Method Details

.fetch_keycode(keycode, keymap_hash) ⇒ Object 



24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
 
# File 'lib/tdriver/util/keymap/keymap.rb', line 24

def self.fetch_keycode( keycode, keymap_hash )

  # retrieve default keymap name from hash
  keymap = keymap_hash[ :default_keymap ]

  # convert symbol to string representation for further processing
  keycode_string = keycode.to_s

  # collect all loaded keymaps, exclude :default_keymap key from hash
  keymaps = keymap_hash.keys.select{ | item | ![ :default_keymap, :all ].include?( item ) } 

  begin

    # check if environment defined in keycode, e.g. :qt_kDown
    if keycode_string.include?( '_' )

      if /(#{ keymaps.collect{ | env | "#{ env.to_s }_" }.join('|') })(.+)/i.match( keycode_string )

        # set new keymap value and convert to symbol, e.g. :qt from :qt_kDown
        keymap = $1.chop.to_sym

        # set correct keycode value and convert to symbol, e.g. :kDown from :qt_kDown 
        keycode = $2.to_sym

      end

      # retrieve symbol from keymap
      keymap_hash[ keymap ][ keycode ]

    else

      begin

        # try to retrieve from default keymap; raises exception if key not found
        keymap_hash[ keymap ][ keycode ]

      rescue 

        # if we didn't find the key, let's try finding from mixed keymap; mixed keymap has all loaded keycodes
        # keycodes are merged to existing hash when loading new keymap on top
        # raises exception if key not found
        keymap_hash[ :all ][ keycode ]

      end

    end

  rescue

 raise ArgumentError, "Scan code for #{ keycode.inspect } not defined in #{ keymap } keymap"

  end

end