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# frozen_string_literal: true
module Vedeu
module Runtime
# Provides the main loop for a Vedeu application.
#
class MainLoop
trap('SIGTERM') { stop! }
trap('TERM') { stop! }
trap('INT') { stop! }
class << self
# :nocov:
# @param mode [Symbol]
def mode_switch!(mode = nil)
@loop = false
@mode_switch = true
Vedeu::Terminal::Mode.switch_mode!(mode)
Vedeu.trigger(:_drb_restart_)
raise Vedeu::Error::ModeSwitch
end
# Start the main loop.
#
# @return [void]
# @yieldreturn [void] The client application.
def start!
@started = true
@loop = true
@mode_switch = false
Vedeu.trigger(:_refresh_cursor_, Vedeu.focus)
Vedeu.trigger(:_refresh_)
while @loop
yield
safe_exit_point!
end
rescue Vedeu::Error::Interrupt
Vedeu.log(message: 'Vedeu execution interrupted, exiting.')
end
# Signal that we wish to terminate the running application.
#
# @return [void]
def stop!
@loop = false
end
# Check the application has started and we wish to continue
# running.
#
# @raise [Vedeu::Error::Interrupt] When we wish to terminate
# the running application.
# @return [void]
def safe_exit_point!
raise Vedeu::Error::Interrupt if @started && !@loop
end
# :nocov:
end # Eigenclass
end # MainLoop
end # Runtime
end # Vedeu
Version data entries
11 entries across 11 versions & 1 rubygems