main.lua

   1 -- Entrypoint for the app. You can edit this file from within the app if
   2 -- you're careful.
   3
   4 -- files that come with LÖVE; we can't edit those from within the app
   5 utf8 = require 'utf8'
   6
   7 function load_file_from_source_or_save_directory(filename)
   8   local contents = love.filesystem.read(filename)
   9   local code, err = loadstring(contents, filename)
  10   if code == nil then
  11     error(err)
  12   end
  13   return code()
  14 end
  15
  16 json = load_file_from_source_or_save_directory('json.lua')
  17
  18 load_file_from_source_or_save_directory('app.lua')
  19 load_file_from_source_or_save_directory('test.lua')
  20
  21 load_file_from_source_or_save_directory('keychord.lua')
  22 load_file_from_source_or_save_directory('button.lua')
  23
  24 -- both sides require (different parts of) the logging framework
  25 load_file_from_source_or_save_directory('log.lua')
  26
  27 -- both sides use drawings
  28 load_file_from_source_or_save_directory('icons.lua')
  29 load_file_from_source_or_save_directory('drawing.lua')
  30   load_file_from_source_or_save_directory('geom.lua')
  31   load_file_from_source_or_save_directory('help.lua')
  32 load_file_from_source_or_save_directory('drawing_tests.lua')
  33
  34 -- but some files we want to only load sometimes
  35 function App.load()
  36   log_new('session')
  37   if love.filesystem.getInfo('config') then
  38     Settings = json.decode(love.filesystem.read('config'))
  39     Current_app = Settings.current_app
  40   end
  41
  42   if Current_app == nil then
  43     Current_app = 'run'
  44   end
  45
  46   if Current_app == 'run' then
  47     load_file_from_source_or_save_directory('file.lua')
  48     load_file_from_source_or_save_directory('run.lua')
  49       load_file_from_source_or_save_directory('edit.lua')
  50       load_file_from_source_or_save_directory('text.lua')
  51         load_file_from_source_or_save_directory('search.lua')
  52         load_file_from_source_or_save_directory('select.lua')
  53         load_file_from_source_or_save_directory('undo.lua')
  54       load_file_from_source_or_save_directory('text_tests.lua')
  55     load_file_from_source_or_save_directory('run_tests.lua')
  56   elseif Current_app == 'source' then
  57     load_file_from_source_or_save_directory('source_file.lua')
  58     load_file_from_source_or_save_directory('source.lua')
  59       load_file_from_source_or_save_directory('commands.lua')
  60       load_file_from_source_or_save_directory('source_edit.lua')
  61       load_file_from_source_or_save_directory('log_browser.lua')
  62       load_file_from_source_or_save_directory('source_text.lua')
  63         load_file_from_source_or_save_directory('search.lua')
  64         load_file_from_source_or_save_directory('source_select.lua')
  65         load_file_from_source_or_save_directory('source_undo.lua')
  66         load_file_from_source_or_save_directory('colorize.lua')
  67       load_file_from_source_or_save_directory('source_text_tests.lua')
  68     load_file_from_source_or_save_directory('source_tests.lua')
  69   else
  70     assert(false, 'unknown app "'..Current_app..'"')
  71   end
  72 end
  73
  74 function App.initialize_globals()
  75   if Current_app == 'run' then
  76     run.initialize_globals()
  77   elseif Current_app == 'source' then
  78     source.initialize_globals()
  79   else
  80     assert(false, 'unknown app "'..Current_app..'"')
  81   end
  82
  83   -- for hysteresis in a few places
  84   Last_focus_time = App.getTime()  -- https://love2d.org/forums/viewtopic.php?p=249700
  85   Last_resize_time = App.getTime()
  86 end
  87
  88 function App.initialize(arg)
  89   if Current_app == 'run' then
  90     run.initialize(arg)
  91   elseif Current_app == 'source' then
  92     source.initialize(arg)
  93   else
  94     assert(false, 'unknown app "'..Current_app..'"')
  95   end
  96 end
  97
  98 function App.resize(w,h)
  99   if Current_app == 'run' then
 100     if run.resize then run.resize(w,h) end
 101   elseif Current_app == 'source' then
 102     if source.resize then source.resize(w,h) end
 103   else
 104     assert(false, 'unknown app "'..Current_app..'"')
 105   end
 106   Last_resize_time = App.getTime()
 107 end
 108
 109 function App.filedropped(file)
 110   if Current_app == 'run' then
 111     if run.filedropped then run.filedropped(file) end
 112   elseif Current_app == 'source' then
 113     if source.filedropped then source.filedropped(file) end
 114   else
 115     assert(false, 'unknown app "'..Current_app..'"')
 116   end
 117 end
 118
 119 function App.focus(in_focus)
 120   if in_focus then
 121     Last_focus_time = App.getTime()
 122   end
 123   if Current_app == 'run' then
 124     if run.focus then run.focus(in_focus) end
 125   elseif Current_app == 'source' then
 126     if source.focus then source.focus(in_focus) end
 127   else
 128     assert(false, 'unknown app "'..Current_app..'"')
 129   end
 130 end
 131
 132 function App.draw()
 133   if Current_app == 'run' then
 134     run.draw()
 135   elseif Current_app == 'source' then
 136     source.draw()
 137   else
 138     assert(false, 'unknown app "'..Current_app..'"')
 139   end
 140 end
 141
 142 function App.update(dt)
 143   -- some hysteresis while resizing
 144   if App.getTime() < Last_resize_time + 0.1 then
 145     return
 146   end
 147   --
 148   if Current_app == 'run' then
 149     run.update(dt)
 150   elseif Current_app == 'source' then
 151     source.update(dt)
 152   else
 153     assert(false, 'unknown app "'..Current_app..'"')
 154   end
 155 end
 156
 157 function App.keychord_pressed(chord, key)
 158   -- ignore events for some time after window in focus (mostly alt-tab)
 159   if App.getTime() < Last_focus_time + 0.01 then
 160     return
 161   end
 162   --
 163   if chord == 'C-e' then
 164     -- carefully save settings
 165     if Current_app == 'run' then
 166       local source_settings = Settings.source
 167       Settings = run.settings()
 168       Settings.source = source_settings
 169       if run.quit then run.quit() end
 170       Current_app = 'source'
 171     elseif Current_app == 'source' then
 172       Settings.source = source.settings()
 173       if source.quit then source.quit() end
 174       Current_app = 'run'
 175     else
 176       assert(false, 'unknown app "'..Current_app..'"')
 177     end
 178     Settings.current_app = Current_app
 179     love.filesystem.write('config', json.encode(Settings))
 180     -- reboot
 181     load_file_from_source_or_save_directory('main.lua')
 182     App.undo_initialize()
 183     App.run_tests_and_initialize()
 184     return
 185   end
 186   if Current_app == 'run' then
 187     if run.keychord_pressed then run.keychord_pressed(chord, key) end
 188   elseif Current_app == 'source' then
 189     if source.keychord_pressed then source.keychord_pressed(chord, key) end
 190   else
 191     assert(false, 'unknown app "'..Current_app..'"')
 192   end
 193 end
 194
 195 function App.textinput(t)
 196   -- ignore events for some time after window in focus (mostly alt-tab)
 197   if App.getTime() < Last_focus_time + 0.01 then
 198     return
 199   end
 200   --
 201   if Current_app == 'run' then
 202     if run.textinput then run.textinput(t) end
 203   elseif Current_app == 'source' then
 204     if source.textinput then source.textinput(t) end
 205   else
 206     assert(false, 'unknown app "'..Current_app..'"')
 207   end
 208 end
 209
 210 function App.keyreleased(chord, key)
 211   -- ignore events for some time after window in focus (mostly alt-tab)
 212   if App.getTime() < Last_focus_time + 0.01 then
 213     return
 214   end
 215   --
 216   if Current_app == 'run' then
 217     if run.key_released then run.key_released(chord, key) end
 218   elseif Current_app == 'source' then
 219     if source.key_released then source.key_released(chord, key) end
 220   else
 221     assert(false, 'unknown app "'..Current_app..'"')
 222   end
 223 end
 224
 225 function App.mousepressed(x,y, mouse_button)
 226 --?   print('mouse press', x,y)
 227   if Current_app == 'run' then
 228     if run.mouse_pressed then run.mouse_pressed(x,y, mouse_button) end
 229   elseif Current_app == 'source' then
 230     if source.mouse_pressed then source.mouse_pressed(x,y, mouse_button) end
 231   else
 232     assert(false, 'unknown app "'..Current_app..'"')
 233   end
 234 end
 235
 236 function App.mousereleased(x,y, mouse_button)
 237   if Current_app == 'run' then
 238     if run.mouse_released then run.mouse_released(x,y, mouse_button) end
 239   elseif Current_app == 'source' then
 240     if source.mouse_released then source.mouse_released(x,y, mouse_button) end
 241   else
 242     assert(false, 'unknown app "'..Current_app..'"')
 243   end
 244 end
 245
 246 function love.quit()
 247   if Current_app == 'run' then
 248     local source_settings = Settings.source
 249     Settings = run.settings()
 250     Settings.source = source_settings
 251   else
 252     Settings.source = source.settings()
 253   end
 254   Settings.current_app = Current_app
 255   love.filesystem.write('config', json.encode(Settings))
 256   if Current_app == 'run' then
 257     if run.quit then run.quit() end
 258   elseif Current_app == 'source' then
 259     if source.quit then source.quit() end
 260   else
 261     assert(false, 'unknown app "'..Current_app..'"')
 262   end
 263 end