text.love/main.lua

374 lines
12 KiB
Lua

-- Entrypoint for the app. You can edit this file from within the app if
-- you're careful.
-- files that come with LÖVE; we can't edit those from within the app
utf8 = require 'utf8'
function load_file_from_source_or_save_directory(filename)
local contents = love.filesystem.read(filename)
local code, err = loadstring(contents, filename)
if code == nil then
error(err)
end
return code()
end
json = load_file_from_source_or_save_directory('json.lua')
load_file_from_source_or_save_directory('app.lua')
load_file_from_source_or_save_directory('test.lua')
load_file_from_source_or_save_directory('keychord.lua')
load_file_from_source_or_save_directory('button.lua')
-- both sides require (different parts of) the logging framework
load_file_from_source_or_save_directory('log.lua')
-- but some files we want to only load sometimes
function App.load()
log_new('session')
if love.filesystem.getInfo('config') then
Settings = json.decode(love.filesystem.read('config'))
Current_app = Settings.current_app
end
-- Current_app =
-- | run
-- | source
-- | {name=warning message='...' next_app = run|source}
if Current_app == nil then
Current_app = 'run'
end
if Current_app == 'run' then
load_file_from_source_or_save_directory('file.lua')
load_file_from_source_or_save_directory('run.lua')
load_file_from_source_or_save_directory('edit.lua')
load_file_from_source_or_save_directory('text.lua')
load_file_from_source_or_save_directory('search.lua')
load_file_from_source_or_save_directory('select.lua')
load_file_from_source_or_save_directory('undo.lua')
load_file_from_source_or_save_directory('text_tests.lua')
load_file_from_source_or_save_directory('run_tests.lua')
elseif Current_app == 'source' then
load_file_from_source_or_save_directory('source_file.lua')
load_file_from_source_or_save_directory('source.lua')
load_file_from_source_or_save_directory('commands.lua')
load_file_from_source_or_save_directory('source_edit.lua')
load_file_from_source_or_save_directory('log_browser.lua')
load_file_from_source_or_save_directory('source_text.lua')
load_file_from_source_or_save_directory('search.lua')
load_file_from_source_or_save_directory('source_select.lua')
load_file_from_source_or_save_directory('source_undo.lua')
load_file_from_source_or_save_directory('colorize.lua')
load_file_from_source_or_save_directory('source_text_tests.lua')
load_file_from_source_or_save_directory('icons.lua')
load_file_from_source_or_save_directory('drawing.lua')
load_file_from_source_or_save_directory('geom.lua')
load_file_from_source_or_save_directory('help.lua')
load_file_from_source_or_save_directory('drawing_tests.lua')
load_file_from_source_or_save_directory('source_tests.lua')
elseif current_app_is_warning() then
else
assert(false, 'unknown app "'..Current_app..'"')
end
end
function App.initialize_globals()
Supported_versions = {'11.5', '11.4', '12.0'} -- put the recommended version first
check_love_version_for_tests()
if Current_app == 'run' then
run.initialize_globals()
elseif Current_app == 'source' then
source.initialize_globals()
elseif current_app_is_warning() then
else
assert(false, 'unknown app "'..Current_app..'"')
end
-- for hysteresis in a few places
Current_time = 0
Last_focus_time = 0 -- https://love2d.org/forums/viewtopic.php?p=249700
Last_resize_time = 0
-- Another weird bit for a class of corner cases. E.g.:
-- * I press ctrl+e, switch Current_app. I don't want the new app to receive
-- text_input and key_release events.
-- If I try to avoid text_input events by switching modes on key_release, I
-- hit a new problem:
-- * I press ctrl+e, am running an untested version, Current_app goes to
-- 'warning', and immediately rolls back out of 'warning' in the
-- key_release event.
-- Skip_rest_of_key_events is ugly, but feels cleaner than creating yet
-- another possible value for Current_app.
Skip_rest_of_key_events = nil
end
function check_love_version_for_tests()
if array.find(Supported_versions, Version) == nil then
-- warning to include in an error message if any tests failed
Warning_before_tests = ("This app hasn't been tested with LÖVE version %s."):format(Version)
end
end
function App.initialize(arg)
love.keyboard.setTextInput(true) -- bring up keyboard on touch screen
love.keyboard.setKeyRepeat(true)
love.graphics.setBackgroundColor(1,1,1)
if Current_app == 'run' then
run.initialize(arg)
elseif Current_app == 'source' then
source.initialize(arg)
elseif current_app_is_warning() then
else
assert(false, 'unknown app "'..Current_app..'"')
end
check_love_version()
end
function check_love_version()
if array.find(Supported_versions, Version) == nil then
show_warning(
("This app hasn't been tested with LÖVE version %s; please switch to version %s if you run into issues. Press any key to continue."):format(Version, Supported_versions[1]))
-- continue initializing everything; hopefully we won't have errors during initialization
end
end
function App.resize(w,h)
if current_app_is_warning() then return end
if Current_app == 'run' then
if run.resize then run.resize(w,h) end
elseif Current_app == 'source' then
if source.resize then source.resize(w,h) end
else
assert(false, 'unknown app "'..Current_app..'"')
end
Last_resize_time = Current_time
end
function App.filedropped(file)
if current_app_is_warning() then return end
if Current_app == 'run' then
if run.file_drop then run.file_drop(file) end
elseif Current_app == 'source' then
if source.file_drop then source.file_drop(file) end
else
assert(false, 'unknown app "'..Current_app..'"')
end
end
function App.focus(in_focus)
if current_app_is_warning() then return end
if in_focus then
Last_focus_time = Current_time
end
if Current_app == 'run' then
if run.focus then run.focus(in_focus) end
elseif Current_app == 'source' then
if source.focus then source.focus(in_focus) end
else
assert(false, 'unknown app "'..Current_app..'"')
end
end
function App.draw()
if Current_app == 'run' then
run.draw()
elseif Current_app == 'source' then
source.draw()
elseif current_app_is_warning() then
love.graphics.setColor(0,0,1)
love.graphics.rectangle('fill', 0,0, App.screen.width, App.screen.height)
love.graphics.setColor(1,1,1)
love.graphics.printf(Current_app.message, 40,40, 600)
else
assert(false, 'unknown app "'..Current_app..'"')
end
end
function App.update(dt)
Current_time = Current_time + dt
if current_app_is_warning() then return end
-- some hysteresis while resizing
if Current_time < Last_resize_time + 0.1 then
return
end
--
if Current_app == 'run' then
run.update(dt)
elseif Current_app == 'source' then
source.update(dt)
else
assert(false, 'unknown app "'..Current_app..'"')
end
end
function App.keychord_press(chord, key)
-- ignore events for some time after window in focus (mostly alt-tab)
if Current_time < Last_focus_time + 0.01 then
return
end
--
Skip_rest_of_key_events = nil
if current_app_is_warning() then
if chord == 'C-c' then
love.system.setClipboardText(warning_message())
else
clear_warning()
Skip_rest_of_key_events = true
end
return
end
if chord == 'C-e' then
-- carefully save settings
if Current_app == 'run' then
local source_settings = Settings.source
Settings = run.settings()
Settings.source = source_settings
if run.quit then run.quit() end
Current_app = 'source'
-- preserve any Error_message when going from run to source
elseif Current_app == 'source' then
Settings.source = source.settings()
if source.quit then source.quit() end
Current_app = 'run'
Error_message = nil
elseif current_app_is_warning() then
else
assert(false, 'unknown app "'..Current_app..'"')
end
Settings.current_app = Current_app
love.filesystem.write('config', json.encode(Settings))
-- reboot
load_file_from_source_or_save_directory('main.lua')
App.undo_initialize()
App.run_tests_and_initialize()
Skip_rest_of_key_events = true
return
end
if Current_app == 'run' then
if run.keychord_press then run.keychord_press(chord, key) end
elseif Current_app == 'source' then
if source.keychord_press then source.keychord_press(chord, key) end
else
assert(false, 'unknown app "'..Current_app..'"')
end
end
function App.textinput(t)
if current_app_is_warning() then return end
-- ignore events for some time after window in focus (mostly alt-tab)
if Current_time < Last_focus_time + 0.01 then
return
end
--
if Skip_rest_of_key_events then return end
if Current_app == 'run' then
if run.text_input then run.text_input(t) end
elseif Current_app == 'source' then
if source.text_input then source.text_input(t) end
else
assert(false, 'unknown app "'..Current_app..'"')
end
end
function App.keyreleased(key, scancode)
if current_app_is_warning() then return end
-- ignore events for some time after window in focus (mostly alt-tab)
if Current_time < Last_focus_time + 0.01 then
return
end
--
if Skip_rest_of_key_events then return end
if Current_app == 'run' then
if run.key_release then run.key_release(key, scancode) end
elseif Current_app == 'source' then
if source.key_release then source.key_release(key, scancode) end
else
assert(false, 'unknown app "'..Current_app..'"')
end
end
function App.mousepressed(x,y, mouse_button)
if current_app_is_warning() then return end
--? print('mouse press', x,y)
if Current_app == 'run' then
if run.mouse_press then run.mouse_press(x,y, mouse_button) end
elseif Current_app == 'source' then
if source.mouse_press then source.mouse_press(x,y, mouse_button) end
else
assert(false, 'unknown app "'..Current_app..'"')
end
end
function App.mousereleased(x,y, mouse_button)
if current_app_is_warning() then return end
if Current_app == 'run' then
if run.mouse_release then run.mouse_release(x,y, mouse_button) end
elseif Current_app == 'source' then
if source.mouse_release then source.mouse_release(x,y, mouse_button) end
else
assert(false, 'unknown app "'..Current_app..'"')
end
end
function App.wheelmoved(dx,dy)
if current_app_is_warning() then return end
if Current_app == 'run' then
if run.mouse_wheel_move then run.mouse_wheel_move(dx,dy) end
elseif Current_app == 'source' then
if source.mouse_wheel_move then source.mouse_wheel_move(dx,dy) end
else
assert(false, 'unknown app "'..Current_app..'"')
end
end
function love.quit()
if Disable_all_quit_handlers then return end
if current_app_is_warning() then return end
if Current_app == 'run' then
local source_settings = Settings.source
Settings = run.settings()
Settings.source = source_settings
else
Settings.source = source.settings()
end
Settings.current_app = Current_app
love.filesystem.write('config', json.encode(Settings))
if Current_app == 'run' then
if run.quit then run.quit() end
elseif Current_app == 'source' then
if source.quit then source.quit() end
else
assert(false, 'unknown app "'..Current_app..'"')
end
end
function current_app_is_warning()
return type(Current_app) == 'table' and Current_app.name == 'warning'
end
function show_warning(message)
assert(type(Current_app) == 'string')
Current_app = {
name = 'warning',
message = message,
next_app = Current_app,
}
end
function clear_warning()
assert(type(Current_app) == 'table')
Current_app = Current_app.next_app
end
function warning_message()
assert(type(Current_app) == 'table')
return Current_app.message
end