Class: Rkremap::WinAttr

Inherits:
Object
  • Object
show all
Defined in:
lib/rkremap/winattr.rb

Overview

アプリの name, class, title を取得する

Instance Method Summary collapse

Constructor Details

#initialize ⇒ WinAttr

Returns a new instance of WinAttr.



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# File 'lib/rkremap/winattr.rb', line 6

def initialize
  @app_win = {}
  @display = X11.XOpenDisplay(nil) or raise "Cannot open display: #{ENV['DISPLAY']}"
  @buf = ' '*8
end

Instance Method Details

#app_title(window) ⇒ String

Returns:

  • (String) 


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# File 'lib/rkremap/winattr.rb', line 47

def app_title(window)
  win = app_win(window)[0]
  return '' if win == 0
  prop = X11::XTextProperty.malloc(Fiddle::RUBY_FREE)
  text_list = X11::Pointer.malloc(Fiddle::RUBY_FREE)
  X11.XGetWMName(@display, win, prop)
  X11.Xutf8TextPropertyToTextList(@display, prop, text_list, @buf)
  ptr = text_list.ptr
  return '' if ptr.null?
  title = ptr.ptr.to_s.force_encoding('utf-8')
  X11.XFreeStringList(text_list.ptr)
  title
end

#app_win(window) ⇒ Array<window, name, class>

Returns:

  • (Array<window, name, class>) 


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# File 'lib/rkremap/winattr.rb', line 20

def app_win(window)
  return @app_win[window] if @app_win[window]
  class_hint = X11::XClassHint.malloc(Fiddle::RUBY_FREE)
  parent = X11::Window.malloc(Fiddle::RUBY_FREE)
  children = X11::Pointer.malloc(Fiddle::RUBY_FREE)
  win = window
  while win > 0
    class_hint.name = nil
    class_hint.class_name = nil
    X11.XGetClassHint(@display, win, class_hint)
    X11.XQueryTree(@display, win, @buf, parent, children, @buf)
    X11.XFree(children.ptr)
    break unless class_hint.name.null? && class_hint.class_name.null?
    win = parent.window
  end
  unless class_hint.name.null?
    win_name = class_hint.name.to_s
    X11.XFree(class_hint.name)
  end
  unless class_hint.class_name.null?
    win_class = class_hint.class_name.to_s
    X11.XFree(class_hint.class_name)
  end
  @app_win[window] = [win, win_name, win_class]
end

#focus_win ⇒ Integer

Returns Window.

Returns:

  • (Integer) —

    Window



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# File 'lib/rkremap/winattr.rb', line 13

def focus_win
  win = X11::Window.malloc(Fiddle::RUBY_FREE)
  X11.XGetInputFocus(@display, win, @buf)
  win.window
end