Module: VER::Methods::Preview

Defined in:
lib/ver/methods/preview.rb

Defined Under Namespace

Classes: Frame

Class Method Summary collapse

Class Method Details

.open_rxvt(text, command) ⇒ Object

Open a new urxvt term and manage it inside the layout of VER. Please let me know if you notice weird behaviour around the focus



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# File 'lib/ver/methods/preview.rb', line 40

def open_rxvt(text, command)
  layout = text.layout

  # No Tk::Tile::Frame as it doesn't support container
  frame = Frame.new(layout, container: true)
  layout.add_buffer(frame)

  frame.bind '<MapRequest>' do |event|
    # Quite the weird hack, but once the MapRequest was handled, we can
    # focus the frame again to actually focus the term.
    # The delay was chosen by trying it on my notebook, which may or may
    # not be enough for everybody, so i added a bit of margin for error.
    # Usually humans don't notice the delay, so we could increase it a bit
    # if need arises.
    Tk::After.ms 100 do
      text.focus
      frame.focus
    end
  end

  frame.bind '<Map>' do |event|
    cmd = "urxvt -embed #{frame.winfo_id} -e $SHELL -c '%s' &" % [command]
    # puts cmd
    `#{cmd}`
  end

  frame.bind '<Destroy>' do |event|
    Tk::After.idle do
      layout.close_buffer(frame)
      text.focus(:force) # need to use force, the term was outside tk
    end
  end
end

.preview(text) ⇒ Object 



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# File 'lib/ver/methods/preview.rb', line 16

def preview(text)
  return unless syntax = text.syntax

  case syntax.name
  when 'Ruby'; preview_ruby(text)
  end
end

.preview_ruby(text) ⇒ Object 



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# File 'lib/ver/methods/preview.rb', line 24

def preview_ruby(text)
  save(text)
  open_rxvt(text, <<-SHELL)
ruby #{text.filename.shellescape}
echo "\nPreview finished, press <Return> to return to VER"
read
exit
  SHELL
end

.save(text) ⇒ Object 



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# File 'lib/ver/methods/preview.rb', line 34

def save(text)
  Save.file_save(text)
end