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mirror of https://github.com/Refactorio/RedMew.git synced 2024-12-12 10:04:40 +02:00
RedMew/utils/gui.lua
2019-03-03 17:54:51 -05:00

281 lines
8.6 KiB
Lua

local Token = require 'utils.token'
local Event = require 'utils.event'
local Game = require 'utils.game'
local Global = require 'utils.global'
local Gui = {}
local data = {}
Global.register(
data,
function(tbl)
data = tbl
end
)
local top_elements = {}
local on_visible_handlers = {}
local on_pre_hidden_handlers = {}
function Gui.uid_name()
return tostring(Token.uid())
end
-- Associates data with the LuaGuiElement. If data is nil then removes the data
function Gui.set_data(element, value)
data[element.player_index * 0x100000000 + element.index] = value
end
-- Gets the Associated data with this LuaGuiElement if any.
function Gui.get_data(element)
return data[element.player_index * 0x100000000 + element.index]
end
-- Removes data associated with LuaGuiElement and its children recursively.
function Gui.remove_data_recursively(element)
Gui.set_data(element, nil)
local children = element.children
if not children then
return
end
for _, child in ipairs(children) do
if child.valid then
Gui.remove_data_recursively(child)
end
end
end
function Gui.remove_children_data(element)
local children = element.children
if not children then
return
end
for _, child in ipairs(children) do
if child.valid then
Gui.set_data(child, nil)
Gui.remove_children_data(child)
end
end
end
function Gui.destroy(element)
Gui.remove_data_recursively(element)
element.destroy()
end
function Gui.clear(element)
Gui.remove_children_data(element)
element.clear()
end
local function handler_factory(event_id)
local handlers
local function on_event(event)
local element = event.element
if not element or not element.valid then
return
end
local handler = handlers[element.name]
if not handler then
return
end
local player = Game.get_player_by_index(event.player_index)
if not player or not player.valid then
return
end
event.player = player
handler(event)
end
return function(element_name, handler)
if not handlers then
handlers = {}
Event.add(event_id, on_event)
end
handlers[element_name] = handler
end
end
local function custom_handler_factory(handlers)
return function(element_name, handler)
handlers[element_name] = handler
end
end
local function custom_raise(handlers, element, player)
local handler = handlers[element.name]
if not handler then
return
end
handler({element = element, player = player})
end
-- Register a handler for the on_gui_checked_state_changed event for LuaGuiElements with element_name.
-- Can only have one handler per element name.
-- Guarantees that the element and the player are valid when calling the handler.
-- Adds a player field to the event table.
Gui.on_checked_state_changed = handler_factory(defines.events.on_gui_checked_state_changed)
-- Register a handler for the on_gui_click event for LuaGuiElements with element_name.
-- Can only have one handler per element name.
-- Guarantees that the element and the player are valid when calling the handler.
-- Adds a player field to the event table.
Gui.on_click = handler_factory(defines.events.on_gui_click)
-- Register a handler for the on_gui_closed event for a custom LuaGuiElements with element_name.
-- Can only have one handler per element name.
-- Guarantees that the element and the player are valid when calling the handler.
-- Adds a player field to the event table.
Gui.on_custom_close = handler_factory(defines.events.on_gui_closed)
-- Register a handler for the on_gui_elem_changed event for LuaGuiElements with element_name.
-- Can only have one handler per element name.
-- Guarantees that the element and the player are valid when calling the handler.
-- Adds a player field to the event table.
Gui.on_elem_changed = handler_factory(defines.events.on_gui_elem_changed)
-- Register a handler for the on_gui_selection_state_changed event for LuaGuiElements with element_name.
-- Can only have one handler per element name.
-- Guarantees that the element and the player are valid when calling the handler.
-- Adds a player field to the event table.
Gui.on_selection_state_changed = handler_factory(defines.events.on_gui_selection_state_changed)
-- Register a handler for the on_gui_text_changed event for LuaGuiElements with element_name.
-- Can only have one handler per element name.
-- Guarantees that the element and the player are valid when calling the handler.
-- Adds a player field to the event table.
Gui.on_text_changed = handler_factory(defines.events.on_gui_text_changed)
-- Register a handler for the on_gui_value_changed event for LuaGuiElements with element_name.
-- Can only have one handler per element name.
-- Guarantees that the element and the player are valid when calling the handler.
-- Adds a player field to the event table.
Gui.on_value_changed = handler_factory(defines.events.on_gui_value_changed)
-- Register a handler for when the player shows the top LuaGuiElements with element_name.
-- Assuming the element_name has been added with Gui.allow_player_to_toggle_top_element_visibility.
-- Can only have one handler per element name.
-- Guarantees that the element and the player are valid when calling the handler.
-- Adds a player field to the event table.
Gui.on_player_show_top = custom_handler_factory(on_visible_handlers)
-- Register a handler for when the player hides the top LuaGuiElements with element_name.
-- Assuming the element_name has been added with Gui.allow_player_to_toggle_top_element_visibility.
-- Can only have one handler per element name.
-- Guarantees that the element and the player are valid when calling the handler.
-- Adds a player field to the event table.
Gui.on_pre_player_hide_top = custom_handler_factory(on_pre_hidden_handlers)
--- Allows the player to show / hide this element.
-- The element must be part in gui.top.
-- This function must be called in the control stage, i.e not inside an event.
-- @param element_name<string> This name must be globally unique.
function Gui.allow_player_to_toggle_top_element_visibility(element_name)
if _LIFECYCLE ~= _STAGE.control then
error('can only be called during the control stage', 2)
end
top_elements[#top_elements + 1] = element_name
end
local toggle_button_name = Gui.uid_name()
Event.add(
defines.events.on_player_created,
function(event)
local player = Game.get_player_by_index(event.player_index)
if not player or not player.valid then
return
end
local b =
player.gui.top.add {
type = 'button',
name = toggle_button_name,
caption = '<',
tooltip = {'gui_util.button_tooltip'}
}
local style = b.style
style.width = 18
style.height = 38
style.left_padding = 0
style.top_padding = 0
style.right_padding = 0
style.bottom_padding = 0
style.font = 'default-small-bold'
end
)
Gui.on_click(
toggle_button_name,
function(event)
local button = event.element
local player = event.player
local top = player.gui.top
if button.caption == '<' then
for i = 1, #top_elements do
local name = top_elements[i]
local ele = top[name]
if ele and ele.valid then
if ele.visible then
custom_raise(on_pre_hidden_handlers, ele, player)
ele.visible = false
end
end
end
button.caption = '>'
button.style.height = 24
else
for i = 1, #top_elements do
local name = top_elements[i]
local ele = top[name]
if ele and ele.valid then
if not ele.visible then
ele.visible = true
custom_raise(on_visible_handlers, ele, player)
end
end
end
button.caption = '<'
button.style.height = 38
end
end
)
if _DEBUG then
local concat = table.concat
local names = {}
Gui.names = names
function Gui.uid_name()
local info = debug.getinfo(2, 'Sl')
local filepath = info.source:match('^.+/currently%-playing/(.+)$'):sub(1, -5)
local line = info.currentline
local token = tostring(Token.uid())
local name = concat {token, ' - ', filepath, ':line:', line}
names[token] = name
return token
end
end
return Gui