393 lines
13 KiB
Lua
393 lines
13 KiB
Lua
local core = require "core"
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local command = require "core.command"
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local config = require "core.config"
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local ime = require "core.ime"
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local keymap = {}
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---@alias keymap.shortcut string
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---@alias keymap.command string
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---@alias keymap.modkey string
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---@alias keymap.pressed boolean
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---@alias keymap.map table<keymap.shortcut,keymap.command|keymap.command[]>
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---@alias keymap.rmap table<keymap.command, keymap.shortcut|keymap.shortcut[]>
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---Pressed status of mod keys.
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---@type table<keymap.modkey, keymap.pressed>
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keymap.modkeys = {}
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---List of commands assigned to a shortcut been the key of the map the shortcut.
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---@type keymap.map
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keymap.map = {}
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---List of shortcuts assigned to a command been the key of the map the command.
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---@type keymap.rmap
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keymap.reverse_map = {}
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local macos = PLATFORM == "Mac OS X"
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-- Thanks to mathewmariani, taken from his lite-macos github repository.
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local modkeys_os = require("core.modkeys-" .. (macos and "macos" or "generic"))
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---@type table<keymap.modkey, keymap.modkey>
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local modkey_map = modkeys_os.map
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---@type keymap.modkey[]
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local modkeys = modkeys_os.keys
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---Generates a stroke sequence including currently pressed mod keys.
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---@param key string
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---@return string
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local function key_to_stroke(key)
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local stroke = ""
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for _, mk in ipairs(modkeys) do
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if keymap.modkeys[mk] then
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stroke = stroke .. mk .. "+"
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end
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end
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return stroke .. key
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end
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---Remove the given value from an array associated to a key in a table.
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---@param tbl table<string, string> The table containing the key
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---@param k string The key containing the array
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---@param v? string The value to remove from the array
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local function remove_only(tbl, k, v)
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if tbl[k] then
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if v then
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local j = 0
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for i=1, #tbl[k] do
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while tbl[k][i + j] == v do
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j = j + 1
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end
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tbl[k][i] = tbl[k][i + j]
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end
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else
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tbl[k] = nil
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end
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end
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end
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---Removes from a keymap.map the bindings that are already registered.
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---@param map keymap.map
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local function remove_duplicates(map)
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for stroke, commands in pairs(map) do
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if type(commands) == "string" or type(commands) == "function" then
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commands = { commands }
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end
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if keymap.map[stroke] then
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for _, registered_cmd in ipairs(keymap.map[stroke]) do
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local j = 0
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for i=1, #commands do
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while commands[i + j] == registered_cmd do
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j = j + 1
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end
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commands[i] = commands[i + j]
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end
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end
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end
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if #commands < 1 then
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map[stroke] = nil
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else
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map[stroke] = commands
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end
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end
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end
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---Add bindings by replacing commands that were previously assigned to a shortcut.
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---@param map keymap.map
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function keymap.add_direct(map)
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for stroke, commands in pairs(map) do
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if type(commands) == "string" or type(commands) == "function" then
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commands = { commands }
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end
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if keymap.map[stroke] then
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for _, cmd in ipairs(keymap.map[stroke]) do
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remove_only(keymap.reverse_map, cmd, stroke)
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end
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end
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keymap.map[stroke] = commands
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for _, cmd in ipairs(commands) do
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keymap.reverse_map[cmd] = keymap.reverse_map[cmd] or {}
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table.insert(keymap.reverse_map[cmd], stroke)
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end
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end
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end
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---Adds bindings by appending commands to already registered shortcut or by
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---replacing currently assigned commands if overwrite is specified.
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---@param map keymap.map
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---@param overwrite? boolean
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function keymap.add(map, overwrite)
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remove_duplicates(map)
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for stroke, commands in pairs(map) do
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if macos then
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stroke = stroke:gsub("%f[%a]ctrl%f[%A]", "cmd")
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end
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if overwrite then
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if keymap.map[stroke] then
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for _, cmd in ipairs(keymap.map[stroke]) do
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remove_only(keymap.reverse_map, cmd, stroke)
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end
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end
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keymap.map[stroke] = commands
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else
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keymap.map[stroke] = keymap.map[stroke] or {}
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for i = #commands, 1, -1 do
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table.insert(keymap.map[stroke], 1, commands[i])
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end
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end
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for _, cmd in ipairs(commands) do
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keymap.reverse_map[cmd] = keymap.reverse_map[cmd] or {}
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table.insert(keymap.reverse_map[cmd], stroke)
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end
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end
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end
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---Unregisters the given shortcut and associated command.
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---@param shortcut string
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---@param cmd string
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function keymap.unbind(shortcut, cmd)
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remove_only(keymap.map, shortcut, cmd)
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remove_only(keymap.reverse_map, cmd, shortcut)
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end
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---Returns all the shortcuts associated to a command unpacked for easy assignment.
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---@param cmd string
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---@return ...
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function keymap.get_binding(cmd)
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return table.unpack(keymap.reverse_map[cmd] or {})
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end
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---Returns all the shortcuts associated to a command packed in a table.
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---@param cmd string
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---@return table<integer, string> | nil shortcuts
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function keymap.get_bindings(cmd)
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return keymap.reverse_map[cmd]
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end
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--------------------------------------------------------------------------------
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-- Events listening
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--------------------------------------------------------------------------------
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function keymap.on_key_pressed(k, ...)
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-- In MacOS and Windows during IME composition input is still sent to us
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-- so we just ignore it
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if PLATFORM ~= "Linux" and ime.editing then return false end
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local mk = modkey_map[k]
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if mk then
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keymap.modkeys[mk] = true
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-- work-around for windows where `altgr` is treated as `ctrl+alt`
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if mk == "altgr" then
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keymap.modkeys["ctrl"] = false
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end
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else
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local stroke = key_to_stroke(k)
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local commands, performed = keymap.map[stroke], false
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if commands then
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for _, cmd in ipairs(commands) do
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if type(cmd) == "function" then
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local ok, res = core.try(cmd, ...)
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if ok then
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performed = not (res == false)
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else
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performed = true
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end
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else
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performed = command.perform(cmd, ...)
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end
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if performed then break end
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end
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return performed
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end
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end
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return false
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end
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function keymap.on_mouse_wheel(delta_y, delta_x, ...)
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local y_direction = delta_y > 0 and "up" or "down"
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local x_direction = delta_x > 0 and "left" or "right"
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-- Try sending a "cumulative" event for both scroll directions
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if delta_y ~= 0 and delta_x ~= 0 then
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local result = keymap.on_key_pressed("wheel" .. y_direction .. x_direction, delta_y, delta_x, ...)
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if not result then
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result = keymap.on_key_pressed("wheelyx", delta_y, delta_x, ...)
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end
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if result then return true end
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end
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-- Otherwise send each direction as its own separate event
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local y_result, x_result
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if delta_y ~= 0 then
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y_result = keymap.on_key_pressed("wheel" .. y_direction, delta_y, ...)
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if not y_result then
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y_result = keymap.on_key_pressed("wheel", delta_y, ...)
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end
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end
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if delta_x ~= 0 then
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x_result = keymap.on_key_pressed("wheel" .. x_direction, delta_x, ...)
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if not x_result then
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x_result = keymap.on_key_pressed("hwheel", delta_x, ...)
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end
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end
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return y_result or x_result
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end
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function keymap.on_mouse_pressed(button, x, y, clicks)
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local click_number = (((clicks - 1) % config.max_clicks) + 1)
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return not (keymap.on_key_pressed(click_number .. button:sub(1,1) .. "click", x, y, clicks) or
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keymap.on_key_pressed(button:sub(1,1) .. "click", x, y, clicks) or
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keymap.on_key_pressed(click_number .. "click", x, y, clicks) or
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keymap.on_key_pressed("click", x, y, clicks))
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end
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function keymap.on_key_released(k)
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local mk = modkey_map[k]
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if mk then
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keymap.modkeys[mk] = false
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end
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end
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--------------------------------------------------------------------------------
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-- Register default bindings
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--------------------------------------------------------------------------------
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if macos then
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local keymap_macos = require("core.keymap-macos")
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keymap_macos(keymap)
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return keymap
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end
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keymap.add_direct {
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["ctrl+shift+p"] = "core:find-command",
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["ctrl+p"] = "core:find-file",
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["ctrl+o"] = "core:open-file",
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["ctrl+n"] = "core:new-doc",
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["ctrl+shift+c"] = "core:change-project-folder",
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["ctrl+shift+o"] = "core:open-project-folder",
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["ctrl+alt+r"] = "core:restart",
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["alt+return"] = "core:toggle-fullscreen",
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["f11"] = "core:toggle-fullscreen",
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["alt+shift+j"] = "root:split-left",
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["alt+shift+l"] = "root:split-right",
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["alt+shift+i"] = "root:split-up",
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["alt+shift+k"] = "root:split-down",
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["alt+j"] = "root:switch-to-left",
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["alt+l"] = "root:switch-to-right",
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["alt+i"] = "root:switch-to-up",
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["alt+k"] = "root:switch-to-down",
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["ctrl+w"] = "root:close",
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["ctrl+tab"] = "root:switch-to-next-tab",
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["ctrl+shift+tab"] = "root:switch-to-previous-tab",
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["ctrl+pageup"] = "root:move-tab-left",
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["ctrl+pagedown"] = "root:move-tab-right",
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["alt+1"] = "root:switch-to-tab-1",
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["alt+2"] = "root:switch-to-tab-2",
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["alt+3"] = "root:switch-to-tab-3",
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["alt+4"] = "root:switch-to-tab-4",
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["alt+5"] = "root:switch-to-tab-5",
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["alt+6"] = "root:switch-to-tab-6",
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["alt+7"] = "root:switch-to-tab-7",
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["alt+8"] = "root:switch-to-tab-8",
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["alt+9"] = "root:switch-to-tab-9",
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["wheel"] = "root:scroll",
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["hwheel"] = "root:horizontal-scroll",
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["shift+wheel"] = "root:horizontal-scroll",
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["wheelup"] = "root:scroll-hovered-tabs-backward",
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["wheeldown"] = "root:scroll-hovered-tabs-forward",
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["ctrl+f"] = "find-replace:find",
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["ctrl+r"] = "find-replace:replace",
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["f3"] = "find-replace:repeat-find",
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["shift+f3"] = "find-replace:previous-find",
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["ctrl+i"] = "find-replace:toggle-sensitivity",
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["ctrl+shift+i"] = "find-replace:toggle-regex",
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["ctrl+g"] = "doc:go-to-line",
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["ctrl+s"] = "doc:save",
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["ctrl+shift+s"] = "doc:save-as",
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["ctrl+z"] = "doc:undo",
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["ctrl+y"] = "doc:redo",
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["ctrl+x"] = "doc:cut",
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["ctrl+c"] = "doc:copy",
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["ctrl+v"] = "doc:paste",
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["ctrl+insert"] = "doc:copy",
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["shift+insert"] = "doc:paste",
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["escape"] = { "command:escape", "doc:select-none", "dialog:select-no" },
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["tab"] = { "command:complete", "doc:indent" },
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["shift+tab"] = "doc:unindent",
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["backspace"] = "doc:backspace",
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["shift+backspace"] = "doc:backspace",
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["ctrl+backspace"] = "doc:delete-to-previous-word-start",
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["ctrl+shift+backspace"] = "doc:delete-to-previous-word-start",
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["delete"] = "doc:delete",
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["shift+delete"] = "doc:delete",
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["ctrl+delete"] = "doc:delete-to-next-word-end",
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["ctrl+shift+delete"] = "doc:delete-to-next-word-end",
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["return"] = { "command:submit", "doc:newline", "dialog:select" },
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["keypad enter"] = { "command:submit", "doc:newline", "dialog:select" },
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["ctrl+return"] = "doc:newline-below",
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["ctrl+shift+return"] = "doc:newline-above",
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["ctrl+j"] = "doc:join-lines",
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["ctrl+a"] = "doc:select-all",
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["ctrl+d"] = { "find-replace:select-add-next", "doc:select-word" },
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["ctrl+f3"] = "find-replace:select-next",
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["ctrl+shift+f3"] = "find-replace:select-previous",
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["ctrl+l"] = "doc:select-lines",
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["ctrl+shift+l"] = { "find-replace:select-add-all", "doc:select-word" },
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["ctrl+/"] = "doc:toggle-line-comments",
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["ctrl+shift+/"] = "doc:toggle-block-comments",
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["ctrl+up"] = "doc:move-lines-up",
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["ctrl+down"] = "doc:move-lines-down",
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["ctrl+shift+d"] = "doc:duplicate-lines",
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["ctrl+shift+k"] = "doc:delete-lines",
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["left"] = { "doc:move-to-previous-char", "dialog:previous-entry" },
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["right"] = { "doc:move-to-next-char", "dialog:next-entry"},
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["up"] = { "command:select-previous", "doc:move-to-previous-line" },
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["down"] = { "command:select-next", "doc:move-to-next-line" },
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["ctrl+left"] = "doc:move-to-previous-word-start",
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["ctrl+right"] = "doc:move-to-next-word-end",
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["ctrl+["] = "doc:move-to-previous-block-start",
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["ctrl+]"] = "doc:move-to-next-block-end",
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["home"] = "doc:move-to-start-of-indentation",
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["end"] = "doc:move-to-end-of-line",
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["ctrl+home"] = "doc:move-to-start-of-doc",
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["ctrl+end"] = "doc:move-to-end-of-doc",
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["pageup"] = "doc:move-to-previous-page",
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["pagedown"] = "doc:move-to-next-page",
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["shift+1lclick"] = "doc:select-to-cursor",
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["ctrl+1lclick"] = "doc:split-cursor",
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["1lclick"] = "doc:set-cursor",
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["2lclick"] = { "doc:set-cursor-word", "emptyview:new-doc", "tabbar:new-doc" },
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["3lclick"] = "doc:set-cursor-line",
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["shift+left"] = "doc:select-to-previous-char",
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["shift+right"] = "doc:select-to-next-char",
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["shift+up"] = "doc:select-to-previous-line",
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["shift+down"] = "doc:select-to-next-line",
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["ctrl+shift+left"] = "doc:select-to-previous-word-start",
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["ctrl+shift+right"] = "doc:select-to-next-word-end",
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["ctrl+shift+["] = "doc:select-to-previous-block-start",
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["ctrl+shift+]"] = "doc:select-to-next-block-end",
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["shift+home"] = "doc:select-to-start-of-indentation",
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["shift+end"] = "doc:select-to-end-of-line",
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["ctrl+shift+home"] = "doc:select-to-start-of-doc",
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["ctrl+shift+end"] = "doc:select-to-end-of-doc",
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["shift+pageup"] = "doc:select-to-previous-page",
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["shift+pagedown"] = "doc:select-to-next-page",
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["ctrl+shift+up"] = "doc:create-cursor-previous-line",
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["ctrl+shift+down"] = "doc:create-cursor-next-line"
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}
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return keymap
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