Class: DelayExecutioner

Inherits:
Object
  • Object
show all
Defined in:
lib/vimamsa/util.rb

Overview

Execute proc after wait_time seconds after last .run call. Used for image scaling after window resize

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(wait_time, _proc) ⇒ DelayExecutioner

Returns a new instance of DelayExecutioner.



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# File 'lib/vimamsa/util.rb', line 214

def initialize(wait_time, _proc)
  @wait_time = wait_time
  @proc = _proc
  @lastt = Time.now
  @thread_running = false
end

Class Method Details

.exec(id:, wait:, callable:) ⇒ Object

Run ‘callable.call’ if ‘wait’ time elapsed from last exec call for this id



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# File 'lib/vimamsa/util.rb', line 205

def self.exec(id:, wait:, callable:)
  @@h ||= {}
  h = @@h
  if h[id].nil?
    h[id] = DelayExecutioner.new(wait, callable)
  end
  h[id].run
end

Instance Method Details

#run ⇒ Object 



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# File 'lib/vimamsa/util.rb', line 234

def run()
  # Reset @lastt to further delay execution until @wait_time from now
  @lastt = Time.now

  # If already executed after last call to run()
  if @thread_running == false
    @thread_running = true
    start_thread
  end
end

#start_thread ⇒ Object 



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# File 'lib/vimamsa/util.rb', line 221

def start_thread
  Thread.new {
    while true
      sleep 0.1
      if Time.now - @lastt > @wait_time
        @proc.call
        @thread_running = false
        break
      end
    end
  }
end