livebook/app_bundler/demo/lib/demo.ex
2022-07-19 14:48:07 +02:00

95 lines
2.2 KiB
Elixir

defmodule Demo.Application do
@moduledoc false
use Application
@impl true
def start(_type, _args) do
children = [
Demo.Window
]
opts = [strategy: :one_for_one, name: Demo.Supervisor]
Supervisor.start_link(children, opts)
end
end
defmodule Demo.Window do
@moduledoc false
use GenServer, restart: :transient
def start_link(arg) do
GenServer.start_link(__MODULE__, arg, name: __MODULE__)
end
# https://github.com/erlang/otp/blob/OTP-24.1.2/lib/wx/include/wx.hrl#L1314
@wx_id_exit 5006
@wx_id_osx_hide 5250
@impl true
def init(_) do
AppBundler.init()
app_name = "Demo"
os = AppBundler.os()
wx = :wx.new()
frame = :wxFrame.new(wx, -1, app_name, size: {400, 400})
if os == :macos do
fixup_macos_menubar(frame, app_name)
end
:wxFrame.show(frame)
:wxFrame.connect(frame, :command_menu_selected, skip: true)
:wxFrame.connect(frame, :close_window, skip: true)
{:ok, %{frame: frame}}
end
@impl true
def handle_info({:wx, @wx_id_exit, _, _, _}, state) do
:init.stop()
{:stop, :shutdown, state}
end
@impl true
def handle_info({:wx, _, _, _, {:wxClose, :close_window}}, state) do
:init.stop()
{:stop, :shutdown, state}
end
# ignore other menu events
@impl true
def handle_info({:wx, _, _, _, {:wxCommand, :command_menu_selected, _, _, _}}, state) do
{:noreply, state}
end
@impl true
def handle_info(event, state) do
show_dialog(state, inspect(event))
{:noreply, state}
end
# Helpers
defp show_dialog(state, data) do
:wxMessageDialog.new(state.frame, data)
|> :wxDialog.showModal()
end
# 1. WxeApp attaches event handler to "Quit" menu item that does nothing (to not accidentally bring
# down the VM). Let's create a fresh menu bar without that caveat.
# 2. Fix app name
defp fixup_macos_menubar(frame, app_name) do
menubar = :wxMenuBar.new()
:wxFrame.setMenuBar(frame, menubar)
menu = :wxMenuBar.oSXGetAppleMenu(menubar)
menu
|> :wxMenu.findItem(@wx_id_osx_hide)
|> :wxMenuItem.setItemLabel("Hide #{app_name}\tCtrl+H")
menu
|> :wxMenu.findItem(@wx_id_exit)
|> :wxMenuItem.setItemLabel("Quit #{app_name}\tCtrl+Q")
end
end